Sensing the tendon tension through the conduit reaction forces

Details Sensing the tendon tension through the conduit reaction forces Sensing the tendon tension through the conduit reaction forces

2008-11-12

2011-11-15

Caputo, Lisa (Department: 2855)

Measuring and testing

Specimen stress or strain, or testing by stress or strain...

By loading of specimen

Reexamination Certificate

active

08056423

ABSTRACT:
A technique that determines the tension in a tendon using a conduit reaction force applied to an end of a conduit through which the tendon is threaded. Any suitable tendon tension sensor can be employed that uses the conduit reaction force for this purpose. In one non-limiting embodiment, the tendon tension sensor includes a cylindrical strain gauge element and a force member mounted to an end of the conduit. The force member includes a cylindrical portion having a bore and a plate portion, where the cylindrical portion is inserted into a bore in the strain gauge element. The tendon is threaded through the strain gauge element and the force member. A strain gauge is mounted to the strain gauge element and measures the reaction force when tension on the tendon causes the strain gauge element to be pushed against the force member.

REFERENCES:
patent: 5004391 (1991-04-01), Burdea
patent: 5912658 (1999-06-01), Bergamasco et al.
patent: 6059506 (2000-05-01), Kramer
patent: 6110130 (2000-08-01), Kramer
patent: 6413229 (2002-07-01), Kramer et al.

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