Wireless force sensor on a distal portion of a surgical instrument and method
First Claim
1. A surgical instrument comprising:
- a shaft having an exterior surface;
a wrist joint coupled to the shaft; and
a surgical end effector mounted distal to said wrist joint, the surgical instrument comprising a jaw portion,the jaw portion having an external non-contact surface bounding a contact surface, wherein a force sensor is mounted on the non-contact external surface, the force sensor comprising;
a wireless package comprising a surface acoustic wave strain sensor and a folded antenna, the folded antenna being electrically coupled to the surface acoustic wave strain sensor.
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Accused Products
Abstract
A surgical instrument includes a distal portion. A force sensor is operatively mounted on the distal portion. The force sensor includes a wireless package, which wirelessly provides (1) identification information of the surgical instrument and (2) strain data related to the distal portion. A surgical end effector includes a jaw and the distal portion is on a non-contact portion of the jaw. The wireless package includes a surface acoustic wave strain sensor with identification information. The wireless package also includes a small folded antenna electrically coupled to the surface acoustic wave strain sensor with identification information. The identification information includes an identification of a type of surgical instrument and unique identification of the specific surgical instrument in the type of surgical instrument.
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Citations
14 Claims
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1. A surgical instrument comprising:
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a shaft having an exterior surface; a wrist joint coupled to the shaft; and a surgical end effector mounted distal to said wrist joint, the surgical instrument comprising a jaw portion, the jaw portion having an external non-contact surface bounding a contact surface, wherein a force sensor is mounted on the non-contact external surface, the force sensor comprising; a wireless package comprising a surface acoustic wave strain sensor and a folded antenna, the folded antenna being electrically coupled to the surface acoustic wave strain sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method comprising:
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receiving a wireless interrogation signal in a wireless package, the wireless package comprising a surface acoustic wave strain sensor and a folded antenna, the folded antenna being electrically coupled to the surface acoustic wave strain sensor, wireless package being mounted an external non-contact surface of a jaw portion of a surgical instrument, the external non-contact surface bounding a contact surface of the jaw portion; and transmitting from said wireless package, in response to said wireless interrogation signal, a wireless signal including identification information of said surgical instrument. - View Dependent Claims (14)
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Specification