MUMBAI, India, April 17 -- Intellectual Property India has published a patent application (202641021589 A) filed by Saveetha Institute Of Medical And Technical Sciences, Chennai, Tamil Nadu, on Feb. 24, for 'smart multi - chamber pneumatic grip strength analyzer with adjustable soft tissue safe bulb for post - surgical rehabilitation.'
Inventor(s) include Nivetha D; Kotteesw Aran K; and Dr. Deepak Nallaswamy Veeraiyan.
The application for the patent was published on April 17, under issue no. 16/2026.
According to the abstract released by the Intellectual Property India: "The present invention relates to a smart pneumatic grip-strength assesstm:nt device designed specifically for post-surgical and sensitive tissue rehabilitation. The device comprises a multi-chamber, soft tissue safe pneumatic bulb constructed from medical grade elastomeric materials that deforn1 unifonnly under minimal force making it safe for patients recovering from tendon repair, fractures, nerve reconstruction or other hand related surgeries. Each chamber within the bulb is independently aligned with the thumb and individual fingers allowing finger wise compartmentalized pressure detection. The chambers are connected to a multi-channel pneumatic sensing module which converts pressure variations into digital force signals through high precision pressure sensors. An adjustable stiffness mechanism implemented through a pressure limiting valve or interchangeable internal elastic liners enables clinicians to regulate resistance levels based on the patient's recovery stage. The device further includes a microcontroller-based system for signal acquisition, calibration, filtering, real-time analysis along with wireless communication hardware enabling seamless connection to a smartphone, tablet, rehabilitation workstation. A dedicated software interface displays real-time force time graphs, peak force values, endurance curves, fatigue patterns, finger specific force distribution supporting clinical decision-making and rehabilitation progress tracking. By integrating pneumatic sensing, multi-chamber architecture, adjustable soft resistance, wireless data transmission, real-time graphical analytics in a single unit, the invention provides an innovative, safe, precise method for evaluating and training grip strength in vulnerable patient populations. The device overcomes limitations of existing hydraulic or spring-loaded dynamometers, offering enhanced comfort, safety, diagnostic accuracy. This makes it suitable for physiotherapy, orthopedic rehabilitation, neurological recovery, sports assessment, homebased therapy."
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