公开(公告)号：US20240382150A1

公开(公告)日：2024-11-21

申请号：US18557115

申请日：2022-05-17

Applicant: NANYANG TECHNOLOGICAL UNIVERSITY

Inventor： Pooi See LEE ,  Kaushik PARIDA ,  Dace GAO

IPC: A61B5/00

Abstract: A muscle spasticity measurement system and sensor comprise a housing having a flexible wall and a constraining wall defining a cavity. A piezoelectric device is disposed in the cavity between an actuating bag and the flexible wall. The piezoelectric device is coupled to the housing substantially via an interior face of the flexible wall. The actuating bag is configured to be pneumatically operable. The actuating bag in an inflated state is constrainable by the housing to press an exterior face of the flexible wall against a body part of the subject.

公开(公告)号：US20250072823A1

公开(公告)日：2025-03-06

申请号：US18729616

申请日：2023-01-20

Applicant: Nanyang Technological University ,  Tan Tock Seng Hospital Pte Ltd

Inventor： Dace GAO ,  Jian CHEN ,  Kaushik PARIDA ,  Pooi See LEE ,  Keng He KONG

IPC: A61B5/00 ,  A61B5/11

Abstract: A device and method of testing muscle stiffness or spasticity. The method includes: controlling an actuator to periodically change between a pressurized state and a relaxed state such that the actuator in at least the pressurized state provides a cyclic force contributing to at least one deformation of a piezoelectric film, the actuator in at least the relaxed state providing a lateral surface in abutment with the piezoelectric film, the piezoelectric film being variably deformable and conformable to the muscle or the muscle group; acquiring a signal generated by the at least one deformation of the piezoelectric film, wherein a change in the signal corresponds to the at least one deformation of the piezoelectric film; and determining a quantitative measure of a muscle spasticity state of the muscle or the muscle group based on the signal.