Can Nashville’s health care leaders solve one of the industry’s biggest challenges? They better

Via Nashville Business Journal »

If you’re thinking about the future of health care, you should be mindful of Steve Jobs. Whether that comes in the form of optimism or wariness depends on your perspective.

For Charlie Martin, a veteran hospital company CEO and the head of investment firm Martin Ventures, Jobs’ innovative ability is emblematic of the way the slow-moving health care industry will ultimately be transformed: by an outsider entrepreneur who can build something people don’t yet know they need.

In Martin’s view, one of the biggest reasons health care lags other industries and continues to grapple with technology’s inability to communicate and share data seamlessly — an issue known as interoperability — is because the existing players in the industry don’t want it to happen. And that leaves them vulnerable.

“I’m afraid the people who are running it now have too much to lose,” Martin said. “The reason we don’t have interoperability today is most of the people in the system don’t want it.”

But other health care leaders are more confident in the industry’s ability to disrupt itself and support innovation. In fact, that’s one of the ideal outcomes for the Center for Medical Interoperability, a new Nashville-based nonprofit led by some of the industry’s highest-profile executives that is working to improve communication and data sharing between a variety of health care technologies.

Steve Jobs didn’t have to invent the internet … he built on top of that utility,” said Ed Cantwell, the center’s CEO, seizing upon Martin’s analogy during a Nashville Business Journal panel Tuesday morning.

The center’s mission involves bringing together the providers who buy technology with the vendors who create it, and together finding a way to make medical devices and software communicate just as easily as bank ATM cards or a VCR and a television. With the help of a framework established by the center, Cantwell argued, innovators can more easily push health care forward, whether they’re coming from inside the industry or elsewhere.

And for HCA Holdings Inc. CEO Milton Johnson, who presented Tuesday’s keynote address, achieving true interoperability will allow the hospital giant to build on three key factors to drive health care forward: consumerism, advanced data analytics and care coordination.

All three of those factors demand the free flow of data and information in order to allow the industry to improve outcomes and efficiency — defying, in some ways, Martin’s predictions.

Nashville, Johnson said, has “unparalleled expertise” that the city’s health care community can use “to disrupt the status quo.”

“The time is right to make ourselves known for the number of lives we improve, not just the number of beds we manage,” Johnson said.

For more of Johnson’s thoughts on HCA’s ability to lead the industry’s next steps, check out this exclusive Q&A.

Health Care of the Future: Interoperability

Via HCA Today Blog »

Today I had the honor of delivering the keynote speech at the Nashville Business Journal’s Health Care of the Future event at the Music City Center. It was a challenge to tackle this vast subject in just 15 minutes. Following is the text of my speech, which focuses on three of the many factors that define the future of healthcare, consumers, advanced data analytics and care coordination, and covers some of the exciting efforts underway at HCA. I hope you find it interesting.

Thank you for the kind introduction. It’s a pleasure to be here with this esteemed group. I’d like to set the stage for today’s discussion by focusing on three main areas – the future of health care, the importance of interoperability and the opportunities that exist for Nashville.

Future of Health Care

Some people say if you want to know the future of health care, just look at the present day state of being for any other industry. Now, while it may be true that health care has ample room to improve, as CEO of one of the largest healthcare companies in the U.S., I take issue with such a broad generalization. Yes it’s true that the industry has opportunity to improve how it leverages technology, meets evolving consumer demands, and conducts business to deliver the best results possible…in the shortest timeframe…at an affordable price. But I know the exciting developments taking place within this industry, and I can tell you from firsthand experience that not all providers are created equally. I’ll talk a little more about that in a minute, but let me just narrow our focus a bit. Many factors define the future of health care, some we can control, others we can’t – Washington, D.C. and genetics are the first that spring to mind. But since we can’t spend the week here discussing this, I’m going to focus on three that are particularly relevant to the interoperability dialogue – consumers, advanced data analytics and care coordination.

First, we all know that consumer expectations continue to rise and expand. We’re not just competing within the healthcare industry, but beyond it. The seamless, convenient, secure experiences enjoyed in other facets of life – like retail, finance and transportation – are now expected in health care. It’s no longer about Provider A versus Provider B; it’s about Provider A compared against Starbucks, Amazon and Uber. This holds especially true among younger generations, who have grown up with real-time, on demand access to information. It doesn’t matter whether it’s to answer a random question, pay a bill, listen to music or get directions – accurate information is readily available…and personal information is safeguarded. Grocery shopping and buying clothes no longer require a trip to the store. You can order online or on an app and have anything shipped to your house – shopping that’s convenient for you, conducted privately, securely and on your timeframe.  Consumers expect higher levels of service to get what they want, when they want it. They also expect greater value and transparency. They want to know how much something is going to cost (before buying it) and how it’s supposed to perform (or its quality). They’ll determine for themselves what constitutes value.

So what are the implications of this for health care? When we talk of healthcare consumers, we have to consider both the patient and those who provide the care. The tools and technologies we use to take care of people have to work well together in order to be useful to clinicians and other caregivers. The more cohesive the toolset, the better able we are to meet consumer expectations – and we all know that satisfaction has real implications for the bottom line.

Health care is often thought of in two contexts – one at the individual level and one at the population level. The need to deliver person-centered care for individuals and manage the health of populations will continue to grow in importance.  At HCA, we have a 50-year tradition of providing patient-centered care, but the expectations for patients have changed. Traditionally when we have conducted consumer research about one of our facilities, satisfaction related to the overall outcome, and people tended to be generous in their assessments.  Well today, things are different.  Now patient-centric care means making my care about me. Timely care means not only when I need it, but when I want it. Convenience is about not just whether there is a hospital close enough to my home to make me feel safe, it’s about a network for multi-level care facilities that are available where and when I want to access that care. And, the care is tailored to my unique biological, genetic and social factors, as well as my cultural and language preferences. Consumers will continue to demand greater value and emphasize outcomes that are meaningful to them, especially as healthcare costs take up more of their household budgets. They will further embrace digital and social media platforms to share their experiences and increase transparency, so providers need to be prepared for growing scrutiny and readily respond to feedback. At HCA, we have developed an extensive reputation management team whose sole purpose is to monitor and engage with consumers of care from our facilities, to ensure their experiences are satisfactory, and if we fall short of the mark, to intervene – real-time – and resolve whatever issues those patients or their caregivers may have.

Population health is about the distribution and determinants of health outcomes. It focuses on illness prevention and management of illness when it is present. Aspects of population health management include nutrition guidelines, encouragement and availability of appropriate physical activity, assistance with tobacco cessation and avoidance, and addressing vulnerabilities such as poverty, literacy and access to care. Healthy consumers at the individual level lead to healthier populations, so it’s imperative that we establish meaningful relationships with those we care for and engage them in managing their health. We also seek to proactively manage entire populations rather than being reactive and treating those who present at the hospital or office with symptoms. We are fortunate in Middle Tennessee to have the support and engagement of leaders like Mayor Berry and Governor Haslam, who have initiated and advanced programs at the community and state levels, to support and encourage wellness and access to care, particularly for some of our most vulnerable populations. All of this, of course, relies on data.

This brings us to the second factor in the future of health care, advanced data analytics. Advanced data analytics fuels growth and competition, serves as a primary driver of both patient-centered care and population health management, and enables data-driven quality improvement and scientific discovery. It’s predicated on the ability to move from capturing data to creating knowledge and applying wisdom.

The term big data has become commonplace in health care. Its role is to help us see and understand the relationships within and among pieces of information. These include hidden patterns, unknown correlations, trends, preferences and other information useful to clinical care and operations. Big data are defined by the three V’s – volume, variety and velocity. Volume refers to the amount of data. HCA, for example, has generated over 120 petabytes – that’s enough to fill the planet Jupiter with data. The scale at which we can learn and make discoveries is tremendous. Variety refers to the different types of data. We have to be able to learn from both structured data, like lab results and electronic medication orders, and the more complicated unstructured data, like images and doctor’s notes. I recently returned from a health care study mission in London with the Nashville Health Care Council, and during one session we were given a presentation by a duo of researchers whose company was acquired by Google. When I asked them about their experiences with unstructured data, they indicated this was a challenging area, one that is difficult to mine for useful information.  But I will tell you that HCA is applying big data analysis in unstructured spaces, to glean information in the clinical, communications and billing spaces. We have the ability to identify lung cancer tumors that might otherwise have gone undetected because their presence in a scan was noted as a secondary care issue; we can identify the appropriate ways in which to address the concerns of patients based on stated cultural reference points that are important to them; and we can use language in billing disputes with payors that creates a greater opportunity for success.  All of these advancements stem from analysis of unstructured big data.

Velocity refers to the speed of data processing, which has been drastically reduced by advances in computing power. Our aim is to achieve consistent, real-time analytics to assist clinicians at the point of decision. You can add a fourth V for veracity, which refers to the quality of the data and our ability to trust their accuracy.

Analytics is a never-ending realm of discovery. Efforts to build the collective body of wisdom pertaining to the human condition, precisely diagnose conditions, and develop targeted treatments will continue to grow. It was groundbreaking when the human genome was sequenced in 2003. Today, researchers have expanded beyond genomics (study of the genome) to include the study of proteins, the study of metabolism, and the study of microbes. The more detailed our knowledge, the more precise the person-centered care will be.

The broader our knowledge of individuals, the better we can help them as well. Health care would benefit from greater integration of nontraditional sources of data that account for environmental and socio-economic factors affecting the people for whom we care. Your doctor doesn’t know how often you eat hot chicken and ice cream, but your credit card does. This type of information could aid, for example, in predicting which of our patients are more likely to be readmitted after surgery. It might not be the individual with the least favorable clinical metrics; rather, it’s the person with the low credit score, which could indicate they don’t have the necessary support network to aid in their recovery. If we have a more complete picture of what is going on with an individual, we can better cater to his or her needs. We also can better understand the decision tree linking care choices to outcomes.

Advanced data analytics also further our goal of providing the safest, most efficient care possible. Real-time monitoring that integrates diverse clinical data points enables us to detect problems before a patient experiences decompensation. Consider the example of sepsis, a life-threatening bloodstream infection. Detecting its onset so that early intervention can be initiated can be the difference between life and death. The symptoms on their own – quickened breathing, accelerated heart rate, unusually high or low core temperature, and abnormally high or low white blood cell count – may not trigger concern as stand-alone data points. However, when taken together, we see a different picture – one that an algorithm is better suited to detect than a busy clinician. HCA is piloting a project that assists our caregivers with detection of sepsis in patients, a capability that is offering earlier detection of as much as 24 hours, and can be a critical advantage in fighting the deadly effects of sepsis.

Let’s turn to our third factor, care coordination. The National Academy of Medicine identifies care coordination as a key strategy with the potential to improve the effectiveness, safety, and efficiency of the U.S. healthcare system. Care coordination involves deliberately organizing patient care activities and sharing information among all of the participants concerned with a patient’s care. The patient’s needs and preferences are known ahead of time and securely communicated at the right time to the right people. Well-designed, targeted care coordination can improve outcomes for everyone – patients, providers and payors. It’s essential that coordination reach across all aspects of the care continuum – hospitals, physician offices, pharmacies, first responders, long-term care facilities, home health, palliative care, community-based services, and payors. The length of this list speaks to the complexity of care coordination.

Care coordination is further exacerbated by the complexity of the needs facing an aging population with a higher prevalence of chronic disease and co-morbidities. We need robust coordination to improve their outcomes and care experience. Yet, these individuals are treated in a multitude of care settings that vary in their ability to coordinate care.

Importance of Interoperability

The common thread to satisfying consumers and enabling advanced data analytics and seamless care coordination is interoperability. Interoperability is the ability of devices and systems to exchange and use electronic information from other devices and systems without special effort on the part of the user. In health care, this speaks to the capability of our technical underpinnings to support data liquidity – when patient information moves freely and securely from the point of care — be that a hospital bed, doctor’s office or someone’s home– to wherever it is needed, from a clinical decision-making app or electronic health record to an analytics engine, clinical trial repository or public health registry. Interoperability of the technologies used in patient care enables the liquidity of data, without which it is more difficult to meet our goals of providing individualized care and managing the health of populations.

Unfortunately, health care is the only major industry that lacks an agreed-upon architecture for connecting the technologies and applications used across the continuum of care. This leaves the vast majority of medical devices, electronic health records and other IT systems unable to exchange information with ease at an affordable cost. Various systems and equipment typically are purchased from different manufacturers and each comes with its own proprietary interface technology. This means hospitals have to spend scarce time and money setting up each technology in a different way, instead of being able to rely on a consistent means for connectivity. Furthermore, hospitals usually have to invest in separate “middleware” systems to pull together all the disparate pieces of technology to feed data from bedside devices to EHRs, data warehouses and other applications that aid in clinical decision-making, research, analytics and consumer engagement. Many, especially older, devices don’t even connect; they require manual reading and data entry. As a nation, we employ hundreds of thousands of people to deal with this inefficiency.

The current lack of interoperability can compromise patient safety, undermine care quality and outcomes, contribute to clinician fatigue and waste billions of dollars a year. In fact, one study found that the lack of medical device interoperability costs the U.S. health system over $30 billion a year. As you would expect, it also impedes innovation, which may be the biggest missed opportunity for health care. Innovators in health care face significant obstacles accessing data, validating solutions, integrating into highly-configured environments, and scaling implementations across varied settings. As a result, the innovation community often steers clear of the healthcare market because navigating it simply is too difficult.  So the entrenched, proprietary interests we need to disrupt for advancement become further entrenched.

By contrast, the seamless exchange of information would improve care, increase operational efficiency and lower costs. It would facilitate care coordination, enable informatics and advanced analytics, reduce clinician workload and increase the return on existing technologies. To realize these benefits, we must rethink how to connect the disparate pieces involved in end-to-end patient care both within and across care settings. We need to repair the technical architecture supporting health care so we have a solid foundation upon which to innovate and develop solutions that will transform care for our nation.

Opportunity for Nashville

This leads us to the opportunity for Nashville. Our unparalleled expertise in how to deliver care positions us to disrupt the status quo. We have the leverage of a $78 billion healthcare industry to compel change and drive innovation. The time is ripe to make ourselves known for the number of lives we improve, not just the number of beds we manage. Our healthcare community encompasses the entire continuum of care, and we can demonstrate how to make end-to-end interoperability a reality, reaping its benefits for our citizens and businesses alike.

We are fortunate that the Center for Medical Interoperability chose Nashville as its headquarters. For those less familiar with the Center, it’s a nonprofit cooperative research and development lab founded by health systems to simplify and advance data-sharing among medical technologies and systems. The Center provides a centralized, vendor-neutral approach to performing technical work that enables person-centered care, testing and certifying devices and systems, and promoting the adoption of scalable solutions. I have the privilege of serving on the board of directors alongside several Nashville healthcare leaders, including Dr. Mike Schatzlein, who chairs the board.

Nashville can be a living lab for data liquidity. Our collaborative culture, coupled with the depth and breadth of our healthcare community, enable us to better integrate the many determinants of health – genetic, biological, environmental, socio-economic, lifestyle and wellness. We can forge private-public partnerships that innovate approaches to freely and securely sharing data in service of patient-centered care and population health.

So what does this all mean?  In short, future health care will be guided by consumer expectations, informed by advanced data analytics, and supported by robust care coordination. To ensure data liquidity and the best possible outcomes, we must achieve end-to-end interoperability across the continuum of care. Nashville has unique advantages to emerge as a true leader in driving healthcare transformation, and we cannot let this window of opportunity close. Thank you.

Center for Medical Interoperability Opens Headquarters in Nashville

Via »

The Center for Medical Interoperability officially opened its headquarters this week and launched a testing and certification laboratory with the aim of improving patient safety and care. The center is a 501(c)(3) cooperative research and development lab founded by health systems to simplify and advance data sharing among medical technologies and systems.

The center’s board includes CEOs from the following health systems:  Ascension Health, Carilion Clinic, Cedars-Sinai Health System, Community Health Systems, Hospital Corporation of America, Hennepin Healthcare System, LifePoint Health, Northwestern Memorial HealthCare, RWJBarnabas, Scripps Health, UNC Health Care System, and Vanderbilt University Medical Center. The organization’s membership consists of health systems and other provider organizations committed to eliminating current barriers to swift and seamless communication of patient information among medical devices and electronic health records. This will improve patient care by providing clinicians with quick and easy access to all relevant patient data in real time, according to a press release.

The lab, located in Nashville, serves as a research and development arm for its members to improve interoperability. The center’s technical experts and visiting engineers from industry work together to develop IT architectures, interfaces and specifications that can be consistently deployed by health systems, medical device manufacturers, electronic health record vendors and others. The lab certifies devices and software that meet the center’s technical specifications. Clinicians explore the impact of technologies within the Transformation Learning Center at the lab to ensure solutions are safe, useful and satisfying for patients and their care teams.

“The opening of the headquarters and launch of the lab are enormous steps toward addressing the difficulties that health systems share in getting medical devices and electronic health records to ‘talk’ to each other,” Mike Schatzlein, M.D., chair of the center’s board, said in a statement. “All too often, this prevents physicians and other caregivers from having complete information about a patient readily available when they make important treatment decisions. Enabling this type of seamless communication is crucial to improving patient safety and reducing clinician burnout.”

Nashville’s health care moonshot is ready for its moment

Via Nashville Business Journal »

He’s got the hospitals on his side. He’s been courting the vendors. Now he’s ready to see what they can do together.

“He” is Ed Cantwell, CEO of the Center for Medical Interoperability, a new Nashville-based nonprofit that has brought together some of the industry’s biggest power players to improve the way health care technologies work together. Now that its Charlotte Avenue home is officially open for business, the center is ready to start pursuing its mission in a big way, Cantwell said.

“As of today we’ll go pretty visible,” Cantwell said, taking a break from chatting up a veritable who’s-who of Nashville’s health care industry during the center’s official grand opening April 6.

As I’ve written previously, interoperability — more specifically, the lack thereof — is one of the biggest issues facing Nashville’s health care community, and it’s one the leader of nearly all the area’s major players have joined together to solve. The center’s board includes the chief executives of HCA Holdings Inc., Community Health Systems Inc., LifePoint Health Inc. and Vanderbilt University Medical Center, among others. The board is chaired by Mike Schatzlein, formerly a top executive with Saint Thomas Health and its parent company, St. Louis-based Ascension.

Cantwell said the center’s board has identified its early priorities, and he and his team have begun to build connections with the technology companies creating the medial devices and software systems that need to communicate more seamlessly. Getting those tech vendors and the providers to work on solving this problem is a bit like a “game of chess,” Cantwell said, but right now “everybody’s behaving pretty well.”

“I don’t think any vendor in health care feels good about the next 10 years,” Cantwell said, which means those vendors are willing to work with providers on establishing and abiding by standards in the health-technology industry.

Cantwell is also passionate about working with Nashville and its leaders to promote “person-centered connected health,” which involves individuals taking ownership of their health records in a way that makes it easier for them to move from provider to provider without vital information being lost. That sort of “personal longitudinal health record” is a key step toward true interoperability, he said. If Nashville can master that and related issues, Cantwell argues, the city can truly claim its place as a capital of health care’s future.

“This is really the cause that answers the Brookings Institution challenge,” Cantwell said, referring to a recent report suggesting Nashville isn’t doing everything it could to capitalize on opportunities for health-technology dominance.

Look for more coverage on interoperability on next week, when a panel of leaders in the industry, including HCA Holdings Inc. CEO Milton Johnson, will gather to talk about the challenges and opportunity in the space.

Center for Medical Interoperability Opens Headquarters and Unique Lab to Speed Seamless Flow of Patient Medical Data

Lab dedicated to breaking down data barriers that prevent doctors from having quick, complete access

to patient information


Nashville, TN (April 6, 2017) – The Center for Medical Interoperability (“The Center”) has

opened its headquarters and launched a one-of-a-kind testing and certification laboratory that will

improve patient safety and care. The Center is dedicated to improving care by accelerating the

seamless flow of information among medical technologies and systems.


The Center’s membership consists of health systems and other provider organizations committed to

eliminating current barriers to swift and seamless communication of patient information among

medical devices and electronic health records. This will improve patient care by providing clinicians

with quick and easy access to all relevant patient data in real time.


The lab, located in Nashville, serves as a research and development arm for its members to improve

interoperability, which is the ability of information systems and technology to work smoothly and

efficiently with each other. The Center’s technical experts and visiting engineers from industry work

together to develop IT architectures, interfaces and specifications that can be consistently deployed

by health systems, medical device manufacturers, electronic health record vendors and others. The

lab certifies devices and software that meet the Center’s technical specifications. Clinicians explore

the impact of technologies within the Transformation Learning Center at the lab to ensure solutions

are safe, useful and satisfying for patients and their care teams.


“The opening of the headquarters and launch of the lab are enormous steps toward addressing the

difficulties that health systems share in getting medical devices and electronic health records to ‘talk’

to each other,” said Mike Schatzlein, MD, chair of the Center’s board. “All too often, this prevents

physicians and other caregivers from having complete information about a patient readily available

when they make important treatment decisions. Enabling this type of seamless communication is

crucial to improving patient safety and reducing clinician burnout”.

Center opens to tackle interoperability challenges in healthcare

Via Health Data Management »

Nashville is home to a new 16,000-square-foot Center for Medical Interoperability that will be focused on simplifying and advancing health data sharing across technologies and systems.

Thursday is the grand opening of the center, which is a membership-based organization that includes what is described as the first-of-its-kind testing and certification laboratory for devices and systems, focused on finding solutions to healthcare’s daunting interoperability challenges.

Several of the center’s members are based or headquartered in Nashville, including Community Health Systems, HCA Healthcare and Vanderbilt University.

“If you walk into any hospital, they all struggle with getting their devices to work together, getting the devices to work with the EHRs and getting the patient information moving to wherever it needs to go,” says Kerry McDermott, vice president of public policy and communications at the Center for Medical Interoperability.

The initial focus of the center will be “inside the hospital” in acute care settings such as the ICU, where patients are “surrounded by dozens of medical devices—each of which knows something valuable about the patient, but we don’t have a streamlined way to aggregate all that data to make it useful for clinicians who need to make real-time important treatment decisions,” according to McDermott.

“Healthcare, until now, has not had a dedicated technical resource where engineers come to work every day targeting that specific problem of how we achieve better data sharing across our medical technologies and systems,” she contends.

The center’s 501(c)(3) cooperative research and development lab, founded with $10 million in initial funding from the Gary and Mary West Foundation, will be used to develop, test, and certify devices and software that meet its goal of developing “vendor-neutral blueprints that enable interoperability within health systems” and support “real time one-to-many communication, two-way data exchange, plug-and-play integration of devices and systems, the use of standards and the highest level of security.”

According to McDermott, the major missing ingredient for healthcare is the lack of an agreed-upon architecture for how the different pieces of technology should fit together within hospital operations. She says the center’s membership includes hospitals and health systems that are dedicated to solving shared technical challenges with standards-based, plug-and-play solutions. Ultimately, McDermott sees certification from its lab as being the equivalent of the “Good Housekeeping seal of approval” for medical technology.

Among the emerging interoperability standards that the center is looking to leverage is Health Level 7 International’s Fast Healthcare Interoperability Resources (FHIR) application programming interface, particularly on the device side. While McDermott contends that FHIR has tremendous potential, she believes there’s a lot more work to be done to make it a mature standard.

“The lab will help bring about a ‘plug-and-play’ environment for healthcare in which there is assured interoperability and connectivity inside and outside the hospital,” said Ed Cantwell, president and CEO of the Center for Medical Interoperability. “An analogy would be the global ATM network that the banking industry uses to facilitate seamless and secure communication among a wide variety of equipment and institutions.”

In addition, the lab includes a Transformation Learning Center (TLC), a resource dedicated to “clinical collaboration” where clinicians explore the impact of technologies “to ensure solutions are safe, useful and satisfying for patients and their care teams.” McDermott says clinicians will use the TLC to develop use cases and capture clinical requirements for what they need.

The concept for the center was first developed in 2011 through researching a standards-based approach to medical device interoperability at the Gary and Mary West Health Institute, adds McDermott. In 2015, the center’s board of directors was formed, consisting of executives drawn from some of the nation’s largest health systems, as well as academic medical centers and rural providers, which represent more than 50 percent of the purchasing power of healthcare, she says.

“We’re really trying to synergize the efforts of these different purchasers, which isn’t to say that the center gets involved in the purchasing decisions made by health systems,” McDermott concludes. “But what we do is provide them with a technical lab that is the focal point for working with the vendors—engineers from industry alongside engineers from the center and the membership—on developing what is the right architecture for healthcare.”

Ascension Health, Vanderbilt UMC unveil Center for Medical Interoperability HQ

Via Becker’s Hospital Review »

The Center for Medical Interoperability on April 6 opened its headquarters in Nashville, Tenn.

The center is a joint initiative of Nashville-based Hospital Corporation of America; Franklin, Tenn.-based Community Health Systems; Brentwood, Tenn.-based LifePoint Health; St. Louis-based Ascension Health; and Nashville-based Vanderbilt University Medical Center, among other U.S. healthcare providers.

The center, which serves as a research and development laboratory, will bring its members together to develop new interoperability solutions. Technical experts and engineers will develop IT architectures and interfaces to help health systems share data between medical devices and EHRs. The center will also certify devices and software that meet its technical specifications.

Click here to learn more.

A millionaire’s mission: Stop hospitals from killing their patients by medical error

Via Fox News »

IRVINE, Calif. — Joe Kiani likes to point out that the most worn spot on most medical monitoring devices is the mute button.

He’s out to change that — and, he hopes, to stop the epidemic of preventable hospital death that kills tens of thousands of Americans each year.

It’s not a glamorous cause. And Kiani is not a household name. But he is a multimillionaire with a proven track record of using engineering smarts to fix dogged problems; he made his fortune improving the humble pulse oximeter, which measures oxygen saturation in the blood. Now, he’s pushing a nerdy, but elegant, idea for saving lives: prodding manufacturers of medical devices and electronic records to open their platforms so all the systems can talk to each other.

His tech fix — if widely implemented — could bring order to the cacophony of beeps, buzzes, and blaring alarms that can so overwhelm nurses and doctors that they push “mute” and miss true emergencies. It could make it easier for staff to monitor patients with complex needs. And it could flag, in advance, potentially fatal errors like incorrect dosing and drug allergies.

Manufacturers, naturally, aren’t so eager to share their computer code. But Kiani is not one to give up.

He stages a glitzy patient safety summit each year, attracting big-name speakers like Bill Clinton and Joe Biden to pound home the need for hospitals to stop killing their patients. “If President Clinton or Vice President Biden says it, it has far more weight,” Kiani said. “When I say it, it’s like a flea screaming.”

In the past five years, Kiani has encouraged — some would say browbeat and publicly shamed — 70 companies to sign a pledge to open their platforms. The group includes some of the biggest medical device manufacturers — who also happen to be some of his most bitter corporate rivals.

“It’s really surreal when I look at where we are,” Kiani said. “People who were our mortal enemies like Medtronic and Philips are now joining us.”

Of course, making a pledge is one thing. Carrying it out is another. While smaller companies have been eager to open up their data, many heavyweights are moving slowly. Some cite concerns about patient privacy; others are working on big integrated systems to sell to hospitals and aren’t interested in cooperating with competitors. Makers of electronic health records have been especially reluctant.

Yet outside experts such as Dr. Peter Pronovost of Johns Hopkins University, a world leader in patient safety, see glimmers of hope.

Pronovost once thought it would take federal regulation to force companies to make their devices talk to one another, which he calls a crucial safety feature, akin to making sure a pilot can can check on the plane’s landing gear from the cockpit. He’s heartened by Kiani’s progress.

“When Joe first stood up and said he’d make data open, he was the lone wolf in the industry,” Pronovost said. “Most of the others put their heads down and stayed silent. He’s been a visionary.”

Zoll, which manufactures defibrillators and data systems in ambulances, was one of the first to open its data. Patient information captured in Zoll-equipped ambulances can now flow directly into the patient’s electronic health record, for review by hospital staff.

As a next step, CEO Rick Packer is pressing the health records companies to send data to his ambulance devices, so paramedics have crucial background on the patients they’re transporting.

“I use the data pledge as a moral high ground” in negotiations, Packer told a panel at Kiani’s patient safety summit last year. “Eventually it’ll come around and we’ll get what we need.”

A science geek hits it rich

Kiani runs his own medical device company, Masimo, from a building so airy and modern it stood in for Stark Enterprises in the first “Iron Man” movie.

With a volleyball court in the lobby and hemp milk and artisanal chocolate served in the employee cafeteria, the building pulses with California startup vibe.

Kiani, 51, a father of three with slightly silvering hair and a penchant for wearing dark tailored suits with no tie, lives in nearby Laguna Beach. But his life wasn’t always so easy.

When Kiani arrived in the US from his native Iran at the age of 9, he spoke three words of English. His family settled in tiny Albertville, Ala., because his father, a technician, had a friend there. (Many who admire Kiani note he’s the kind of successful immigrant who might be barred from the US under President Donald Trump’s temporary immigration ban.)

Kiani raced through high school, finishing at 15, and planned to become a doctor. But chemistry at San Diego State  University foiled him. Instead, he turned to engineering.

“It’s probably better he didn’t become a doctor,” mused Dr. Steven Barker, a professor emeritus of anesthesiology and aeronautical engineer at the University of Arizona who now works as chief science officer for Masimo. “He wouldn’t have saved nearly as many lives.”

Soon after graduating, Kiani got a chance to work on pulse oximeters.  The geek in him was captivated. “I couldn’t believe you could shine light in your finger and measure oxygen in your blood,” he said. “I just loved the idea.”

But devices being used in the mid-1980s were terrible. Just about any patient movement caused the devices to sound a false alarm that oxygen levels were low. Patients would then be blasted with too much oxygen, which often led to blindness in premature babies.

Drawing on what he’d learned from fields like submarine warfare and satellite communication, Kiani and colleagues came up with adaptive algorithms that helped the oximeters ignore signals that made no physiological sense. That cut down on false alarms and improved reliability. In 1989, Kiani and engineer Mohamed Diab launched Masimo. It began, as so many of California’s great companies have, in a garage.

The next decade was tumultuous. Bigger companies were trying to steal his ideas. Kiani couldn’t seem to get hospitals to look at his device. At times, his sales reps were even physically escorted off hospital grounds.

“It was so frustrating. I can’t even tell you,” he said.

Kiani had stumbled into the scandalous world of hospital GPOs, or group purchasing organizations. His pulse oximeter was being locked out by larger competitors who paid hefty fees to hospital purchasing agents in order to land exclusive sales contracts.

Kiani was initially afraid to get involved, not wanting his young company to be blackballed. “It wasn’t in my personal interest to try to change this industry,” he said. But he did speak out, in a series of high-profile articles and in testimony before the Senate in 2002.

“He really helped open up the market for smaller companies that had better, disruptive technologies,” said Ronald Newbower, an MIT-trained physicist who’s spent decades using technology to improve patient safety at Massachusetts General Hospital.

As hospital purchasing rules began to change, Kiani’s company began selling huge numbers of pulse oximeters. It is now one of the top sellers in a market estimated at $1.5 billion globally.

The company is moving into other areas, including brain monitoring. Kiani is extremely proud of Masimo’s technology and the sleek, iPhone-like devices he’s been creating of late. But the company took dings — and received an FDA warning letter in 2014 — for not adequately responding to complaints about some of its devices. Kiani said the company has since overhauled that process.

Masimo went public in 2007, and Kiani, still at the helm, is rich beyond his dreams. (Masimo’s board balked at his lucrative contract a few years ago and renegotiated, but he still takes in more than $5 million a year.)

“His life story,” said retired California Senator Barbara Boxer, a close friend, “reads like a fairy tale.”

But his business success wasn’t enough. The fight to open up hospital purchasing practices had stirred an activist bent in Kiani. He soon found his target.

Turning patient safety into a glitzy cause

After years of working in the medical field, Kiani knew the grim statistics: Some 100,000 patients in the US die each year of medical errors, according to a 1999 Institute of Medicine report. Some researchers, using newer screening tools, think the number could be four times higher. Others say it’s lower.

But everyone agrees these deaths can and should be prevented.

When Kiani began to put faces to the statistics, he was shaken.

One of those faces belonged to 11-year-old Leah Coufal, who died in December of 2002 at Cedars-Sinai Medical Center in Los Angeles. She’d had routine surgery to correct a mild chest deformity and apparently received a massive dose of fentanyl to control pain — enough to stop her breathing.

Her mother, Lenore Alexander, couldn’t talk about Leah’s death for a decade. When she started speaking out, Kiani listened. He was shocked to realize his own daughter — who is fine now — had surgery in the same hospital, with the same surgeon, in the same week as Leah.

“That could have been me,” Kiani told the people gathered at his first patient summit in 2013. “It could have been you.”

He was also shocked to find Leah had not been monitored after surgery, not even with a simple pulse oximeter. Another name Kiani couldn’t keep out of his mind at the time was Rory Staunton, a 12-year old from New York who scraped his arm in gym class, then died from a sepsis infection that simple screening tools could have detected.

“He wondered: “Why are people going into hospitals and not coming out?’” said Frederic J. Harris, an electrical engineering professor at San Diego State University who taught Kiani and remains close to him.

Kiani decided to tackle such senseless deaths through engineering.

“God bless him. He’s working on this and he’s got people all over the place working on it,” said Alexander, Leah’s mom, who has spent years pressing to get patients monitored after surgery. “I believe he’s a really good man. He’s not doing this for his own pocket.”

Critics, however, look askance at the high glitz content of Kiani’s annual summits, run through his Patient Safety Movement Foundation.

Held at beachside hotels, with splashy staging and tickets priced at $500 to $1,000 apiece, the summits rely heavily on political star power. (This year, for instance, the foundation is dangling a private fishing trip with Jimmy and Rosalynn Carter as a prize; health care institutions can enter to win by committing to specific steps to reduce patient deaths.)

Some critics also raise questions about the money Kiani has handed out to politicians. His foundation, which is funded by Masimo and other corporations, paid $315,000 to Clinton for a 2014 speech (though the former president has waived his fee for the past three years, Kiani said). Another of Masimo’s foundations has contributed $2.5 million to the Clinton Foundation.

“That’s a lot of money. You wonder if it’s a way to legally channel money to a candidate,” said Beth Waldron, a patient safety advocate and consultant in Chapel Hill, N.C. She once hoped to work with Kiani on her key issue — death from venous thromboembolism, or blood clots — but grew concerned after looking at how the foundation operates.

“I’ve seen very little substantive action coming from this particular patient safety organization,” said Waldron. She notes that plenty of other groups also work on patient safety and, in her view, get more done. “I don’t see the results to justify the costs,” she said.

Kiani said he resents any implication that he’s trying to buy access to promote his company or alter tax policies that affect his industry.

And many in the field, even competitors, say Kiani’s work is making a difference, by turning a spotlight on the uncomfortable topic of patient death and also by reshaping market forces.

“The pledge for open data does make an impact. Customers are starting to demand it,” said Stefan Dräger, the CEO of Germany’s Dräger, a medical technology manufacturer which signed up early on. He predicts more and more companies will jump in: “They have to,” he said. “It would look awkward if they refused.”

Medtronic, a medical device giant, has started to embrace open platforms, including in some of its insulin pumps and glucose monitors. Another powerhouse, Philips, has been working to develop industry-wide standards so devices can talk to each other.

Electronic medical records makers also need to come aboard, noted Johns Hopkins’s Pronovost, or they risk becoming “dumb data entry and billing systems” without access to the streams of data coming in from monitors and devices — or the powerful analytic tools used to make sense of it all.

Ed Cantwell, who runs the nonprofit Center for Medical Interoperability, said it’s a national embarrassment that companies have been allowed to own patient data instead of sharing it.

He’s working to create the architecture that hospitals could use to network their tens of thousands of devices into what he calls a “truly neutral, two-way plug and play” system. Once those standards are in place, he said, “I’m going to call vendors on their data pledges — very publicly.”

That can’t come too soon for Kiani. He’s already revved up about what it could all mean: Once more devices are linked and data is flowing, he said, computers should be able to predict in advance which patients are headed for trouble and alert clinicians. All that’s needed, he said, are a few good algorithms.

“It’s easy for a computer to do,” Kiani said. “It’ll be phenomenal.”

CEO Ed Cantwell Featured in InCharge Healthcare 2017: The Continuum of Care

Via Nashville Medical News »

View the 2017 edition of InCharge Healthcare »

As our healthcare delivery system continues to evolve and transform, there is an increasing focus on communication, connection and engagement at every point along the continuum of care.

Certainly, the top executives featured on this year’s cover represent not only excellence in their own particular part of the continuum but a willingness and ability to reach across silos to make healthcare’s triple aim a reality. There has been a transformative shift across the country as the industry expands focus to include prevention and maintenance of health as a central part of the mission to deliver care to the communities being served, and our local healthcare industry has played an integral role in those national efforts.

It’s evident while flipping through the pages of the 2017 edition of InCharge Healthcare, Middle Tennessee is blessed with a wealth of impressive leaders – and each impacts the continuum at different inflection points. While providers and facilities operators are certainly a central part of the equation, so are the venture capitalists, bankers and mentors who fund and nurture innovative young companies … the healthcare attorneys and accountants who help facilitate connections while keeping industry clients on the right side of state and federal regulations … the association executives advocating for thoughtful reforms … and the HIT experts and industry consultants figuring out the most effective, efficient ways to deliver care and share information in a secure manner.

As part of Middle Tennessee’s healthcare community for more than two decades, we hope that Nashville Medical News is also an integral part of that continuum by delivering news and insights on clinical, business, research and regulatory matters of interest to our readers. Through nearly 25 years of continuous publication, the paper has seen various ownership groups, but the constant always has been a desire to serve the city’s robust healthcare industry by providing meaningful local and national news.

Trusted Wireless Health – A New Approach to Medical Grade Wireless

Via ICT Today »

Several current trends give cause to rethink the design of wireless systems in medical buildings.

Increasingly, patients are bringing in their connected smart devices and expecting the hospital to provide wireless internet services for free. Studies conducted over the last six years show that guest traffic in these facilities has risen from less than 10 percent of all Wi-Fi traffic to as much as 95 percent of the total airtime and bandwidth.

Within the hospital, advances in medical technology bring greater demand for more wireless devices, in large part so that patients can be mobile while being treated and also eliminate wires that can cause hazards. The Internet of Things (IoT) is arriving in medical care in the form of wearable sensors, which must communicate data affecting the safety of the patient regardless of where they are and despite adverse local radio frequency (RF) conditions.

Procurement of new technology is often driven by specific medical departments based on their needs for improved products, but without consideration of how it will coexist with current equipment and guests. Often, purchase decisions consider only the cost of the device itself, not the total cost including risks brought on by incompatibility to other wireless-based systems.

In addition, there is an increased need for medical devices designed to work not only in the hospital, but also in the patient’s home. Away from the medical facility, these devices must communicate reliably and securely back to the caregivers’ systems. What if the patient could be discharged, freeing up valuable resources, with the assurance that the medical data was reliable and secure and that the patient could be located as needed?

These trends combine into a perfect storm of high growth in user demand for wireless services. The healthcare community is ill-prepared to manage this challenge alone. Exacerbating growing demand are the potential for co-channel interference, device makers’ calls for proprietary networks, and a lack of vendor-neutral best practices or standards against which network infrastructure can be installed and measured. These factors contribute to high costs and low network reliability.

Can a single solution be found to these varied concerns and objectives? This article proposes an integrated plan for Trusted Wireless Health (TWH). In TWH, choices made in one area can affect, and in turn are affected by, those made in other areas under consideration. All must coexist.

A Determined Policy 

The wireless healthcare environment is characterized by inconsistent and widely varying practices, as well as a lack of design and implementation standards. The hospital setting in particular faces explosive growth in consumer and medical wireless devices. Left unchecked, it is almost impossible for clinicians’ tablets or computers on wheels to work simultaneously with patients’ smartphones, wireless ventilators, monitors and infusion pumps at the level of assurance required in a medical setting.

A starting point is to consider the risk of action or inaction, the residual risk, and possible methods of risk mitigation. A guide to these sorts of consideration is the standard documented in ISO-80001-1 and other associated standards, which ask the hospital to consider risks, mitigate what risks they can and thoroughly document and accept the risks that remain.

TWH is part of a complete, hospital-wide risk assessment to understand the vulnerabilities of a wireless system (Figure 1). Risk analysis consists of hazard identification: the risky situations and root causes, an estimate of the potential harm of each hazard and its severity, and an estimate of the probability of harm. Risk acceptability must be evaluated and a risk versus benefit versus cost analysis performed. Risk control measures must be identified, documented and implemented, and their efficacy evaluated. Residual risk must be reported and accepted at the C-level and constantly iterated.

As a result, the hospital quickly comes to realize that allowing wireless in the hospital to be driven by the needs of individual departments carries such great risk that a determined policy on wireless services, purchases, implementation and ongoing use must take place. The policy creates a constancy of purpose toward the improvement of the provided medical services as a whole, and reminds everyone that wireless is a critical component of those improvements. It ends the practice of awarding vendor business on the basis of a lone price tag or discrete needs and focuses on the goal of minimizing total costs, which include the costs of medical risk.

How Does TWH Differ from MGWU? 

Medical Grade Wireless Utility (MGWU) was a valuable starting point from which the TWH geometric RF design evolved. TWH RF continues the concept of providing separate layers of traffic and expands on it. It starts with a listing of a dozen changes a hospital can do in a few hours to provide some immediate relief, buying time to more thoroughly revamp the RF environment.

TWH RF differs from MGWU in a few aspects. First, it is not solely concerned with pushing as much signal out over as large an area as possible. Instead, it concerns itself with many access points (APs) operating at a relative RF whisper. This provides several advantages, including large increases in capacity and lower RF noise levels.

A key consideration is that today’s client devices have very low power. Symmetry in the downstream/ upstream requires that APs be designed, not at the maximum permitted power of 17-20 decibels per millwatt (dBm), but with the 5-11 dBm that the end device can provide. This, in turn, rapidly shrinks the coverage area of each AP. This higher density increases system capacity. The necessity is for more, lower power APs. But it also provides a challenge—how to prevent interference between all the APs?

MGWU was heavily dependent on a distributed antenna system (DAS) for RF propagation. With today’s prevalence of multiple input, multiple output (MIMO) technologies, which require multiple separate RF sources and receivers, a DAS would need to consist of as many individual RF distribution systems as there are contemplated streams of MIMO. Essentially, if there is one DAS for a single stream legacy system (SISO), a 2x MIMO would require two complete DAS systems, a 3x MIMO would require three, and so forth. The space and cost requirements to create a DAS-based MGWU become prohibitive. TWH RF implements the MGWU using precise geometry and spatial separation. The result offers lower costs of infrastructure installation, which help offset the additional AP counts required by the lower power settings.

Consider also that advances in miniaturization have created a range of small radios for carrier-based services, also called small cells or femto cells. For the purposes of this article, these radio sources shall be referred to as tiny cells. Their chief characteristic is that they can bring in carrier signals from the outside without the need for a DAS to distribute the signals. They function as base stations with or without coordination to the macro cells in the outside world, communicating via industry-standard Ethernet provided by the carriers or sublet traffic on the building enterprise network structured wiring.

Advances in unlicensed spectrum continue with the addition of technologies such as Bluetooth® low energy (BLE), LTE in unlicensed spectrum (LTE-U)—which brings carrier traffic out from the licensed bands into Wi-Fi space—and other users of the spectrum. All this occurs under the Federal Communications Commission mandate that all users within unlicensed spectrum must coexist.

Fundamentals of TWH 

TWH is a vendor-neutral, future-ready wireless and wired infrastructure able to transport wireless signals from medical devices of established vendors and new and startup vendors alike. It consists of a design that allows for up to seven independent wireless services across eight wireless networks, which together constitute an infrastructure shaped to the building and engineered to deliver appropriately assured wireless service

at the locations in the healthcare enterprise as required by need. TWH RF provides for the future placement of new technologies, such as LTE-U, without the need to completely redesign each layer of previously installed service.

TWH creates up to seven completely independent wireless networks at the critical 5-6 gigahertz (GHz) band and one additional wireless network in the 2.4 GHz band. The first three of seven independent 5-6 GHz networks are referred to here as the Red, Green, and Blue networks. While each color layer can be assigned at will, normally the Red network layer at 5-6 GHz will constitute services for the enterprise itself—the doctors, nurses, and devices providing patient care. At 2.4 GHz, the Red network will provide for enterprise legacy devices that do not have 5-6 GHz capabilities. The Green network at 5 GHz will constitute services for guests, the patients and their visitors. The Blue network is designed to be used at 5-6 GHz for new services on otherwise incompatible technology, such as LTE-U, and at 2.4 GHz for services such as BLE for wayfinding and other applications that develop.

Figure 2 is an excerpt from a ceiling plan design by a major architectural firm specializing in hospital design. Following TWH RF rules, the architect was able to create a MGWU out of individual APs, placing APs out of the way of various ceiling obstructions, yet correctly positioning them to provide excellent RF coverage. The three (or more) layers discussed are all located in advance, so Ethernet category 6a (or otherwise specified) cables can be pulled to each location, even if all layers are not implemented in all areas of the hospital. For example, an operating room might not need the Blue layer, but might wish to implement both the Red and Green layers as a set of redundant services for hospital medical personnel and devices. In other areas of the hospital (for example, in patient rooms), the Red and Green layers would exist as two separate networks, one for hospital services and one for guests, while the Blue layer would represent the locations of a carrier-supplied tiny cell network.

Each large circle represents a gross AP location, while the actual AP is indicated by a small square. Note that the squares are located directly in the middle of a reflected ceiling plan 2×2 grid, allowing for the AP to be located in a tamper-resistant decorative panel consistent with the ceiling layout. This simplifies installation.

The additional four layers (above and beyond the three in the example above) derive from a lattice arrangement suggested by the packing of atoms in a crystal. The Center for Medical Interoperability has developed the methodology and will be licensing it free of charge to providers working with their membership.

A wireless network designed around the principles of TWH will provide the critical underpinning for: u Dense, low-signal level RF coverage u Trusted and verified design for capacity and coverage

  • w Licensed at no cost to architects working on member projects w Architect ensures APs are integral to all systems w Allows for multiple frequency segregated traffic networks
  • Elevator, stairwell and difficult access areas considered
  • w AP RF design power matched to clients, not max permissible
    • A wired network designed to support wireless needs
    • Detailed implementation and configuration procedures
    • Wireless 100 percent verified and validated after install and configuration

Trusted Interoperable Devices 

Trusted Interoperable Device certification needs to guide both vendor product development and enterprise procurement. Validation of devices to the TWH RF design will consider aspects beyond the Wi-Fi alliance certification.

When evaluating a device, the questions asked should include: How does it react to higher data rates? How much power does it send out? How does it behave in roaming?

Device behavior concerning roaming is a particularly important question. Does the device stay put when RF conditions are good enough, and does the device move to a new AP when RF conditions become adverse? There are many devices today which, despite being placed in an environment with several good signals all more than adequate to communicate, constantly hop from one AP to the next, with each jump causing a roam event. Certification will examine how a device behaves when the signal degrades below a certain threshold. Does the device actively seek a new link, or does it hold on to the existing AP?

Client radios are ever smaller, with smaller battery capacities. Thus, the RF design of the client changes accordingly. The transmit power is lower and, coupled with some increase in data rate, the time the radio needs to be on is less, which increases battery life. With the lower transmit power, it is not sufficient that the enterprise sources (APs) be designed to blanket an area at high power that the clients can hear; it is instead required that the APs be placed at a sufficient design density so that, when matched to the power of the client, both sides can hear each other (symmetric power). Even at the low power, the signal-to-noise ratio must be high enough that the data rate is sufficient to send a message in a quick burst and then turn off the power-draining radio.

As an integral part of TWH, the procurement process for wireless devices needs to be reconsidered. It is not sufficient to purchase a device that meets some standards in an antiseptic environment. The device must be able to coexist with all other devices found in the environment, including those carried by guests. Devices that can pass some sort of certification scheme as to interoperability must be clearly and correctly identified, and then be placed on a network of their own, while the rest must be segregated in some way so as to permit the certified devices some guarantee of service.

Trusted Traffic Design 

TWH traffic design considers transaction frequency and volume effects on the allocation of wireless resources.

Additional capacity in a given area can only come from an increased density of APs of an existing technology, or an introduction of a new, possibly incompatible, technology. Knowing how much traffic a given device or application generates and how often it does so provides the architect designing the AP placement a basis on which to adjust the density of APs. The IT department and the wireless management system are then afforded the opportunity to adjust wireless services accordingly.

Until and unless the air-time arbitration scheme moves to something other than the decades-old 802.11, wireless will always have some chance of packet loss. Thus, there can never be any absolute guarantee of service. The potential loss of packets must be considered in the overall risk assessment within a hospital facility. The risk of failure can be mitigated by providing overlapping services, but that ability must have devices which do not hop from AP to AP as noted above.

Trusted Location-Finding Abilities 

The ability to find people and objects will be made possible by tags that use both Wi-Fi and precision guidance of non-Wi-Fi sources. In the unlicensed bands, location is done at 2.4 GHz rather than at 5 GHz by necessity—it propagates most easily. Actively chirping tags associated with equipment and personnel need to do so more than once per occurrence. It has been demonstrated that a tag that chirps three times on each of the three channels is highly effective. Tags that only chirp once (or only once per channel) tend to give false readings. TWH geometric RF design provides a guarantee of three APs within approximately a 7.6 meter (25 feet) line of sight to each tag or radio source, which results in superior location resolution (Figure 3). Time difference of arrival (TDoA) and angle of arrival (AoA) systems from devices at the existing locations will further improve the location-finding methods. Another current trend is to invert the BLE beaconing system, using BLE not as a source, but rather by placing a high density of receivers looking for BLE sources in motion. The TWH geometric design provides for the specific locations of a nearly ideal grid for such a system.

Privacy and Security Considerations 

TWH considers that privacy is a requirement for medical data whether the devices are within the hospital or outside the hospital grounds. Medical devices certified as interoperable at the device and application levels both must be identified uniquely and securely. There is no need to reinvent the process; there are multiple solutions in the market that allow for assigning a unique certificate per verified component. Identified and authenticated devices and applications will be allowed access to virtual local area networks (VLANs), which in turn permit access to servers containing the requisite information. Those who fail access control will be shunted to general access on the outside. Patients and other guests inside the building will be provided an easy method by which to obtain a temporary certificate, all the while holding at bay those living in the area or commuting by the building.

Trusted Applications and Interchange of Data

While today’s devices communicate well with their own servers, and via graphical user interfaces (GUIs) to the humans who consume the data, there is a marked lack of ability for devices to exchange information among themselves. Would it not be good if the infusion pump and the respiratory machine connected to the patient utilized only one sensor for each vital sign in common, rather than requiring one per device? Common application programming interfaces (APIs) should allow each vendor to concentrate on what they do best while both accepting and providing information to other medical systems in a trusted manner. Disparate vendors are working together on a trusted interchange gateway.

Considerations for the Future 

Wireless is advancing rapidly, with considerable leaps in technology. The impacts of further new technologies will quickly make legacy systems and devices obsolete. 802.11 is a poor method for allocation of air time. As one possible alternative, LTE operates much like an arbitrated bus of a switch or a modern computer backplane and is widely available today. The hindrance to LTE is the tight control exercised by the patent owner, so it may not itself be the future, but some mechanism will come to the forefront. Being backwards compatible has served 802.11 till now, but at some point the switch to an incompatible technology must be made. The frequencies in use (the unlicensed ISM bands) will most likely remain the same but the use of that space will need to change. The concept underlying TWH geometric RF design is to permit the introduction of a new technology on independent pre-planned frequency spans within the medical RF system while permitting legacy devices and applications to continue to work. Medical devices will need to be licensed with the understanding that the low layer protocols will be swapped out from 802.11 to something more efficient—there will be no need to replace the physical infrastructure wholesale, nor to change the way the rest of the medical applications work.


TWH is a fusion of concepts, which together can deliver trust and assurance to a medical wireless system. The goal is to provide medically needed data, delivered wirelessly in a timely, certain and private manner, all the while removing unintended consequences from the use of disparate tech-nologies which often do not work together. With TWH in place, the medical community can rely on trusted wireless transport to provide new advances in medical care.

AUTHOR BIOGRAPHY: Mitchell Ross is the principal for Trusted Wireless Health at the Center for Medical Interoperability in Nashville, TN. He has more than 40 years of experience in machine-to-machine communications and has worked at NASA, Xerox, Pratt & Whitney, General Motors and Digital Equipment Corporation. Beginning with the wide-scale adoption of IEEE 802.11b in the late 1990s, he has spent the last 18 years working to optimize Wi-Fi installations. He can be reached at