Apparatus for ensuring strain gauge accuracy in medical reusable device

a strain gauge and reusable device technology, applied in the field of surgical instruments, can solve the problems of end effectors that are not compatible with surgical instruments and/or handle assemblies that use rotary motion, and achieve the effect of avoiding tissue damage, maximizing staple formation consistency, and ensuring the accuracy of load sensing devices

Inactive Publication Date: 2022-04-28
COVIDIEN LP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This solution enhances the accuracy of load sensing devices, eliminating the need for reliability testing and ensuring consistent staple formation and tissue compression, thereby improving surgical precision and safety.

Problems solved by technology

As such, these end effectors are not compatible with surgical instruments and / or handle assemblies that use rotary motion.

Method used

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  • Apparatus for ensuring strain gauge accuracy in medical reusable device
  • Apparatus for ensuring strain gauge accuracy in medical reusable device
  • Apparatus for ensuring strain gauge accuracy in medical reusable device

Examples

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Embodiment Construction

[0028]Embodiments of the present disclosure are now described in detail with reference to the drawings in which like reference numerals designate identical or corresponding elements in each of the several views. As used herein, the term “clinician” refers to a doctor, a nurse or any other care provider and may include support personnel. Throughout this description, the term “proximal” will refer to the portion of the device or component thereof that is closer to the clinician and the term “distal” will refer to the portion of the device or component thereof that is farther from the clinician. Additionally, in the drawings and in the description that follows, terms such as front, rear, upper, lower, top, bottom, and similar directional terms are used simply for convenience of description and are not intended to limit the disclosure. In the following description, well-known functions or constructions are not described in detail to avoid obscuring the present disclosure in unnecessary ...

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PUM

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Abstract

An apparatus for ensuring strain gauge accuracy including a handle assembly including a controller, an adapter assembly including a tubular housing having a proximal end portion configured to couple to the handle assembly and a distal end portion, a load sensing assembly configured to measure a load exerted on the tubular housing, and a signal processing circuit electrically coupled to the load sensing assembly, a memory coupled to the signal processing circuit, and a calibration assembly including a biasing member having a known spring rate stored as a force value in the memory, the calibration assembly configured to couple to the distal end portion of the adapter assembly. The signal processing circuit is configured to calibrate the adapter assembly with the calibration assembly attached thereto by calculating a correction factor based on a comparison a force of the spring member measured by the load sensing assembly to the force value.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]The present application is a continuation of U.S. patent application Ser. No. 16 / 441,625, filed on Jun. 14, 2019, which claims the benefit of the filing date of provisional U.S. patent application Ser. No 62 / 695,898, filed Jul. 10, 2018.BACKGROUND1. Technical Field[0002]The present disclosure relates to surgical instrument. More specifically, the present disclosure relates to ensuring accuracy of load sensing devices used in handheld electromechanical surgical systems.2. Background of Related Art[0003]One type of surgical instrument is a circular clamping, cutting and stapling device. Such a device may be employed in a surgical procedure to reattach rectum portions that were previously transected, or similar procedures. Conventional circular clamping, cutting, and stapling devices include a pistol or linear grip-styled structure having an elongated shaft extending therefrom and a staple cartridge supported on the distal end of the elongat...

Claims

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Application Information

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Patent Type & AuthorityApplications(United States)
IPC IPC(8): A61B17/115A61B17/068
CPCA61B17/1155A61B2017/00221A61B17/068A61B90/06A61B17/115A61B2017/00017A61B2017/00477A61B2017/0046A61B2090/064A61B2560/0223A61B2017/00725A61B2017/00734A61B2017/00398A61B2017/00473A61B2017/00393A61B2017/00486A61B2017/07257A61B2017/07271A61B2017/07285
InventorEISINGER, JOSEPHMOZDZIERZ, PATRICKVALENTINE, DAVIDWILLIAMS, JUSTIN
OwnerCOVIDIEN LP