US 12,484,837 B2
Skin torsionometer
Jean Carruthers, Vancouver (CA)
Assigned to CARRUTHERS INSTRUMENTS INC., Vancouver (CA)
Appl. No. 17/054,103
Filed by Carruthers Instruments Inc., Vancouver (CA)
PCT Filed Jun. 24, 2020, PCT No. PCT/CA2020/000075
§ 371(c)(1), (2) Date Nov. 9, 2020,
PCT Pub. No. WO2020/227809, PCT Pub. Date Nov. 19, 2020.
Application 17/054,103 is a continuation in part of application No. 16/409,904, filed on May 13, 2019, abandoned.
Claims priority of provisional application 62/670,079, filed on May 11, 2018.
Prior Publication US 2021/0196185 A1, Jul. 1, 2021
Int. Cl. A61B 5/00 (2006.01)
CPC A61B 5/442 (2013.01) [A61B 5/0002 (2013.01); A61B 5/0055 (2013.01); A61B 5/742 (2013.01); A61B 2562/0238 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method for measuring tautness of skin comprising:
providing a torsionometer comprising a shaft and a lower surface;
providing a housing for rotatably supporting the shaft for rotational movement of the torsionometer relative to the housing;
providing a sensor mounted to the housing and operably connected to the torsionometer to detect rotational movement of the torsionometer relative to the housing and connected to provide measured data to a processor;
adhering the lower surface to the skin;
rotating the torsionometer to thereby twist the skin until resistance from the twisting of the skin stops rotation of the torsionometer;
releasing the torsionometer to freely rotate under torque from the deformed skin;
measuring, by the sensor and the processor, recoil angular velocity of the torsionometer relative to the housing and associated with the releasing of the torsionometer; and
determining, by the processor, the tautness of the skin based at least in part on the recoil angular velocity of the torsionometer.