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Title: New Innovative Finger Clip Design for Blood Pressure Monitoring

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Title: New Innovative Finger Clip Design for Blood Pressure Monitoring

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Source Details:  Medgadget, Author-Conn Hastings

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Source Details:  Medgadget, Author-Conn Hastings

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PROS: Finger Clip vs Blood Pressure Cuff

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PROS: Finger Clip vs Blood Pressure Cuff

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1. Less invasive
2. More comfortable for patient
3. Reduces "white coat syndrome" associated increase in BP
4. Multiple vital signs monitored at once
5. Less time to get results
6. Will not damage arteries due to excessive inflation of cuff
7. Wireless transmission of data
8. Easier for continuous monitoring and reviewing vital sign data trends

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CONS: Finger Clip vs Blood Pressure Cuff

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CONS: Finger Clip vs Blood Pressure Cuff

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1. More expensive
2. Not as user friendly for non-tech savvy personnel
3. Possible discrepancies in readings due to excessive movement and/or technical issues
4. As with a pulse oximeter, there could be issues with accurate readings due to patient circulation, artificial nails/nail polish or deformed fingers/nails
5. Would require more maintenance due to the technology requirements
6. Current testing on volunteers show 90% accuracy with systolic BP, but only 63% accuracy in diastolic BP reading

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My Top 5 Strengths: Relator, Connectedness, Empathy, Individualization & Strategic

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My Top 5 Strengths: Relator, Connectedness, Empathy, Individualization & Strategic

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The first four of my strengths relator, connectedness, empathy and individualization focus in the area of "relationship building". Being a relator makes me enjoy working with others to achieve a goal, connectedness is where I find my faith and it helps me to look at the bigger picture, empathy allows me to have a sense of what others are going through, and individualization helps me appreciate the differences in others and how we can all work together. My last strength is being strategic, so I often use strategic thinking to help me through a process and/or issue, especially ones that might be unexpected more complicated to solve.

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For my team I chose Angelica- Analytical, Faith- Futuristic, Matthew-Maximizer, Rachel-Restorative and William-Woo.
*Angelica's strength in being analytical (strategic thinking) will help the team to analyze all the factors that affect the situation.
*Faith being futuristic (strategic thinking), would benefit our team because her strength would help us to be inspired by the future possibilities and in health care we are always geared toward the future and how we can better it.
*Matthew having the strength of a maximizer (influencing), would help the team be successful together as a whole and build on what is already good and make it great.
*Rachel being restorative (executing), will help the team to figure out any problems or issues with the device and help get it resolved efficiently.
*William has the strength of woo (influencing), which I feel is very important when there is a new innovation in technology that no one has heard of before. This strength can help break the ice and form connections with people so that when trialing this new device there is an ease in transition and communication.

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I definitely think this new innovation has the potential to benefit health care on a large scale. With the right technology, education and the repair of any glitches or potential issues, this could greatly improve how we obtain vital signs. This would be a great addition to not only the clinical setting, but in-home care as well. A patient at home would have more independence and autonomy in their own health care with a device that is very easy to use. There are far more pros than cons and I think that with even more research and testing most of the cons could be resolved.

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Summary: This exciting new innovation for health care could possibly change many lives for the better! 

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Summary: This exciting new innovation for health care could possibly change many lives for the better! 

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A team of researchers from the University of Missouri have developed a custom finger clip device that can measure vital signs, including blood pressure. The device contains two commercial photoplethysmography (PPG) sensors that operate at two different points of the finger, which allows for simultaneous calculations of pulse wave velocity while measuring blood oxygen saturation, body temperature, heart rate, and respiratory rate. This amazing new technology is not only helpful for those who need continuous monitoring, but also for those who have severe "white coat syndrome". For some just hearing the word blood pressure cuff can spike their anxiety, thus increasing the their pulse rate and blood pressure readings. This new, very non-invasive technique is much more comfortable and less frightening to those that suffer with these particular anxiety issues. Not only does it help a person with anxiety, but it helps with physical comfort as well. No longer having to inflate a blood pressure cuff on a persons arm is beneficial for comfort as well as those that have sensitivities or complications when compressing the arteries needed to achieve the reading from a blood pressure cuff.

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At the University of Missouri a team of researchers developed a custom finger clip device that can continuously measure a variety of vitals, including blood pressure. The novel device represents a new way to measure vitals, and contains two commercial photoplethysmography (PPG) sensors that operate at two different points on the finger. This approach allows the researchers to simultaneously calculate pulse wave velocity and also measure blood oxygen saturation, body temperature, heart rate, and respiratory rate.

Continuous blood pressure measurements can reveal trends that a single measurement can miss. Moreover, the very act of measuring someone's blood pressure in a doctor's office can cause their anxiety to spike, leading to a change in their blood pressure, in a phenomenon known as "white coat syndrome". Clearly, continuous monitoring that non-invasively and unobtrusively takes measurements throughout the day is preferable.

"Typically, calculating someone's blood pressure at a hospital or clinic involves using an inflatable cuff wrapped around their arm, but there are three issues with that method - it can cause damage to someone's arteries if done repeatedly within a short amount of time; people's blood pressure can rise due to nervousness; and it can take up to 30 seconds to complete," said Richard Byfield, one of the leads on the development of the new device. "Our device can record someone's blood pressure within five seconds by using optical sensors placed on the fingertip that measure the amount of light reflected off the blood vessels underneath the surface of the skin."

Once the clip obtains the pulse wave velocity data, it wirelessly transmits it to a computer, where machine-learning algorithms interpret it and calculate blood pressure. So far, in tests with volunteers, the clip has shown that it can measure systolic blood pressure with an accuracy of approximately 90%, and diastolic pressure with an accuracy of 63%.

The robust nature of the clip is key to making sure that the PPG data are reliable. "Typically, there are a few problems with PPG sensors," said Byfield. "One is called artifact motion - if you move a PPG sensor while it's reading, it can affect the waves that are being recorded. On top of that, we found that differences in pressure can alter the waves, but with a finger clip design, a spring provides constant pressure. Another reason this method hasn't been explored much before is typically these finger clips only have one sensor, but we have two sensors in our device."

Study in IEEE Sensors Journal: Toward Robust Blood Pressure Estimation from Pulse Wave Velocity Measured by Photoplethysmography Sensors

Flashbacks: Accurate Cuff-less Blood Pressure Measurement on a Smartphone; Wearable Monitor Provides Continuous Blood Pressure Data

Via: University of Missouri

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Finger Clip for Blood Pressure Monitoring

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At the University of Missouri a team of researchers developed a custom finger clip device that can continuously measure a variety of vitals, including blood pressure. The novel device represents a new way to measure vitals, and contains two commercial photoplethysmography (PPG) sensors that operate at two different points on the finger.