Patent ID: 11965789
Assignee: INTUITIVE SURGICAL OPERATIONS, INC.
Field: Measurement (Instruments)
Classification: CPC G  A | IPC A  G

Claim 3:
4. The force sensor of claim 2, wherein:
the force sensor further includes a second bridge circuit on the first face of the beam, a third measurement signal lead line, and a fourth measurement signal lead line;
the second bridge circuit includes a third tension strain gauge resistor, a fourth tension strain gauge resistor, a third compression strain gauge resistor, and a fourth compression strain gauge resistor;
the third tension strain gauge resistor and the third compression strain gauge resistor are located at the proximal end portion of the beam;
the fourth tension strain gauge resistor and the fourth compression strain gauge resistor are located at the distal end portion of the beam;
the third measurement signal lead line is mechanically isolated from the beam and electrically couples the third compression strain gauge resistor and the fourth compression strain gauge resistor; and
the fourth measurement signal lead line is mechanically isolated from the beam and electrically couples the third tension strain gauge resistor and the fourth tension strain gauge resistor.