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Systems and related methods for applying preload tension for surgical instruments

A technique for surgery, instruments, systems for applying preload tension for surgical instruments and related fields

Active Publication Date: 2022-01-18
INTUITIVE SURGICAL OPERATIONS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, tension preload in the cables can increase the force that the drive system must exert to operate the surgical instrument

Method used

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  • Systems and related methods for applying preload tension for surgical instruments
  • Systems and related methods for applying preload tension for surgical instruments
  • Systems and related methods for applying preload tension for surgical instruments

Examples

Experimental program
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Effect test

Embodiment Construction

[0054] A flexible tensioning element (e.g., cable, cable-hypotube combination, etc.) of a surgical instrument includes a preloaded tension that enables an input tension load to be transmitted through the flexible tensioning element from the first end to the second end. The preload tension may also inhibit the flexible tensioning element from becoming slack when another flexible tensioning element is loaded such that the flexible tensioning element relaxes. The preload tension corresponds to, for example, the tension present in the flexible tension member when there is no input tension load of the distal member coupled to the flexible tension member for drive, the tension present in the flexible tension member before the input tension load is applied to drive the distal member. tension in the tension element, tension present in the flexible tension element to reduce slack in the flexible tension element, etc. As described herein, the preload tension may be adjusted, for exampl...

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PUM

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Abstract

A surgical system includes a dynamic preload tension feature for a tensioning element that actuates a distal end component of a surgical instrument. The surgical instrument includes a chassis positioned at a proximal end of the surgical instrument, a drive component mounted in the chassis, a distal component positioned at a distal end of the surgical instrument, a first drive component coupled to the drive component, and a distal end A flexible tensioning element between the components, and a dynamic preload tensioner mounted in the chassis and coupled to a second of the drive components. A flexible tension member extends along the path. The dynamic preload tensioner is configured to be driven by a second of the drive components to move relative to the undercarriage and positioned to alter the path of the flexible tensioning element as the dynamic preload tensioner moves relative to the undercarriage .

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of U.S. Provisional Application No. 62 / 408,242, filed October 14, 2016. The disclosure content of the earlier application is considered a part of the disclosure content of the present application and is incorporated by reference in the disclosure content of the present application. technical field [0003] The present specification relates to systems and methods of applying preload tension for surgical instruments, particularly flexible tensioning elements for surgical instruments. Background technique [0004] In some cases, slack or low tension in the cables of the surgical instrument may cause jumping or unpredictable movement of the surgical instrument's end effector. One way to ensure that sufficient cable tension exists throughout the design life of the surgical instrument is to preload the cable at a high enough tension to resist some preloaded cable tension reduction, especi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B34/30A61B90/00
CPCA61B34/71A61B90/08A61B34/30A61B2034/715A61B2017/00477
Inventor M·A·威克斯W·伯班克T·G·库珀P·弗拉纳干N·H·拉格斯德D·F·小威尔逊
Owner INTUITIVE SURGICAL OPERATIONS INC