Force Sensors for Surgical Devices

A force sensor and sensing technology, applied in the field of surgical devices, can solve problems such as glass breakage, achieve the effect of preventing tear spread and being resistant to repeated use

Active Publication Date: 2021-06-25
TYCO HEALTHCARE GRP LP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When utilizing glass along the substrate, the glass can break under load
Another problem is premature failure due to large strain on the pad

Method used

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  • Force Sensors for Surgical Devices
  • Force Sensors for Surgical Devices
  • Force Sensors for Surgical Devices

Examples

Experimental program
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Effect test

Embodiment Construction

[0027] Embodiments of the present disclosure will now be described in detail with reference to the drawings, wherein like reference numerals indicate like or corresponding elements in each of the several views. In this specification, the term "proximal" refers to the part of the device or part thereof that is close to the user's hand, and the term "distal" refers to the part of the device or part thereof that is remote from the user's hand.

[0028] now refer to figure 1 , a surgical device 1 according to an embodiment of the present disclosure is in the form of a powered hand-held electromechanical instrument and includes a powered handle assembly 10, a joint assembly 20 and a tool assembly or end effector 30 and an anvil assembly 34, the tool assembly Or the end effector includes a load cell 32 having a plurality of staples (not shown) disposed therein, and the anvil assembly includes an anvil head 34a and an anvil bar 34b. Power handle assembly 10 is configured for selecti...

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Abstract

The present disclosure relates to force sensors and force sensor substrates for use with surgical devices.

Description

technical field [0001] The present disclosure generally relates to surgical devices. More specifically, the present disclosure relates to force sensors for powered surgical devices. Background technique [0002] Force sensors are well known and there are various methods of making these types of sensors. In one approach, the sensor utilizes bonded strain gauges adhered to a flexible substrate within the load path. For example, a simply supported steel beam used integrally with the load path may have strain gauges mounted on the beam. The strain gauges are incorporated in a Wheatstone bridge circuit configuration and include an excitation voltage. The circuit is designed to be balanced (ie, no load) before deflection, and the circuit will have resistance at zero load. During loading, the beam will deflect and the strain gauge will produce a change in resistance. This change in resistance is a signal that can be converted into a value of force applied to the beam using a s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L1/22
CPCG01L1/22G01L1/2287G01L1/2243G01L1/2268G01L5/0028A61B2090/064A61B17/1155A61B2017/00017A61B2017/00398A61B2017/0046A61B2017/00473A61B2034/2061A61B34/25A61B34/76A61B34/77
Inventor 帕特里克·莫泽尔兹安东尼·斯格罗伊戴维·瓦伦丁
Owner TYCO HEALTHCARE GRP LP
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