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Force sensor for surgical device to prevent ingress of fluids

A force sensor and reservoir technology, applied in the field of force sensors of electric surgical devices, can solve problems such as damage to the sensing element, damage to the integrity of the protective coating, etc.

Active Publication Date: 2018-05-22
TYCO HEALTHCARE GRP LP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, during autoclave procedures, force sensors exposed to moisture at high temperatures and pressures can suffer from moisture ingress, thermal epoxy decomposition that can damage the chemical bond of the sensing element (e.g., a strain gauge) to the substrate , and / or damage to the integrity of the protective coating

Method used

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  • Force sensor for surgical device to prevent ingress of fluids
  • Force sensor for surgical device to prevent ingress of fluids
  • Force sensor for surgical device to prevent ingress of fluids

Examples

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Embodiment Construction

[0036] The force sensors of the present disclosure include sensing elements such as surgical devices that are protected from harsh environments such as automatic irrigation and / or autoclaving. A force sensor consists of a substrate having mounted thereon a sensing element, such as a strain gauge and its supporting electronics, covered by a seal and / or plate to form a leak-proof barrier to protect the sensing element. element.

[0037] Embodiments of the present disclosure are now described in detail with reference to the drawings, wherein like reference numerals designate like or corresponding elements in each of the several views. Throughout this specification, the term "proximal" refers to the portion of the device or components thereof that is closer to the user's hand, and the term "distal" refers to the portion of the device or components thereof that is further from the user's hand. Directional reference terms such as "top", "bottom", "upper", "lower" and the like are i...

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Abstract

A force sensor comprises: a substrate including a proximal surface and a distal surface; a plurality of sensing elements coupled to the distal surface of the substrate; a seal including a base wall and a flange extending proximally from the base wall, the flange positioned against the distal surface of the substrate to define a cavity between the base wall of the seal and the distal surface of thesubstrate within which the plurality of sensing elements is disposed; and a cover plate positioned over the seal and fixed to the substrate, the cover plate applying a closure force on the seal to inhibit the ingress of fluids into the cavity.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of and priority to U.S. Provisional Patent Application No. 62 / 418,995, filed November 8, 2016, which is incorporated herein by reference in its entirety. technical field [0003] The present disclosure generally relates to surgical devices. More specifically, the present disclosure relates to force sensors for electrosurgical devices. Background technique [0004] Force sensors (eg, load-reading sensors) have been used to enhance the control of functions in surgical devices, such as surgical stapling instruments. Through the use of force sensors, the clamping, stapling, and cutting forces of a surgical device can be monitored and used to adjust these various functions. Force sensors can be used to detect preset loads and cause the surgical device to react when those preset loads are reached. For example, during clamping of thick tissue, the load may rise up to a predetermined lim...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L5/00
CPCG01L5/00A61B17/115G01L1/2231A61B2090/064A61B34/76A61B2090/065A61B2017/00398A61B2017/0046A61B2017/00473A61B2017/00017G01L5/0061A61B90/06A61B17/00234A61B17/10A61B17/1155A61B2017/07257G01L5/22
Inventor 拉米罗·卡夫雷拉
Owner TYCO HEALTHCARE GRP LP
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