A custom smartphone app guides the user on how hard and long to press during a blood pressure measurement.
The researchers tested the clip on 24 volunteers from the UC San Diego Medical Center. Results were comparable to those taken by a blood pressure cuff.
“Using a standard blood pressure cuff can be awkward to put on correctly, and this solution has the potential to make it easier for older adults to self-monitor blood pressure,” said study co-author and medical collaborator Alison Moore, chief of the Division of Geriatrics in the Department of Medicine at UC San Diego School of Medicine.
While the team has only proven the solution on a single smartphone model, the clip’s current design theoretically should work on other phone models, said Xuan.
Wang and one of his lab members, Colin Barry, a co-author on the paper who is an electrical and computer engineering student at UC San Diego, co-founded a company, Billion Labs Inc., to refine and commercialize the technology.
Next steps include making the technology more user friendly, especially for older adults; testing its accuracy across different skin tones; and creating a more universal design.
Paper: “Ultra-low-cost Mechanical Smartphone Attachment for No-Calibration Blood Pressure Measurement.” Co-authors include Jessica De Souza, Jessica Wen and Nick Antipa, all at UC San Diego.
This work is supported by the National Institute of Aging Massachusetts AI and Technology Center for Connected Care in Aging and Alzheimer’s Disease (MassAITC P30AG073107 Subaward 23-016677 N 00), the Altman Clinical and Translational Research Institute Galvanizing Engineering in Medicine (GEM) Awards, and a Google Research Scholar Award.
Disclosures: Edward Wang and Colin Barry are co-founders of and have a financial interest in Billion Labs Inc. Wang is also the CEO of Billion Labs Inc. The other authors declare that they have no competing interests. The terms of this arrangement have been reviewed and approved by the University of California San Diego in accordance with its conflict-of-interest policies.
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Super Low-cost Smartphone Attachment Brings Blood Pressure Monitoring to Your Fingertips - today.ucsd.edu
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