Scissor bias for direct pull surgical instrument

A technique of surgery and cutting action, applied in the direction of surgical scissors, surgical manipulators, surgical forceps, etc., can solve problems such as difficulty in fixing pivot points

Active Publication Date: 2013-04-10
INTUITIVE SURGICAL OPERATIONS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with a conventional pair of scissors, it is difficult to provide a fixed pivot point on the longitudinal axis of the surgical end effector that engages the two cutting blades

Method used

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  • Scissor bias for direct pull surgical instrument
  • Scissor bias for direct pull surgical instrument
  • Scissor bias for direct pull surgical instrument

Examples

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Embodiment Construction

[0024] In the following description, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In other instances, well-known circuits, structures and techniques have not been shown in detail in order not to obscure the understanding of the present invention.

[0025] In the following description, reference is made to the accompanying drawings which illustrate several embodiments of the invention. It is to be understood that other embodiments may be utilized and mechanical, structural, electrical, and operational changes may be made without departing from the spirit and scope of the present invention. The following detailed description is not intended to be in a limiting sense, and the scope of the embodiments of the present invention is defined solely by the claims of the issued patent.

[0026] The terminology used herein is for the purpose of describing particular embodiments only...

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Abstract

A surgical end effector includes a clevis having a first end to be supported by an elongated tube-like member and two jaws, each having a pivot portion and a working portion. The pivot portions are rotatably coupled to the clevis by two spaced apart pivots. The working portions may include a cutting edge that provide a shearing action as the first and second jaws rotate about their respective pivots. The pivot portion and the working portion of each jaw may be on opposite sides of a bisecting plane. A flexible cable or wire may be coupled to each jaw and extend through a guide way in the other jaw, between the first and second pivots, and through the first end of the clevis. One or more springs may urge the working portions together. A rocking pin pivotally supported by the clevis may constrain the jaws to have opposite motions.

Description

[0001] Cross References to Related Applications [0002] Pursuant to 35 U.S.C. 119(e), this application claims the benefit of U.S. Provisional Application No. 61 / 356,551, filed June 18, 2010, which is hereby expressly incorporated by reference in its entirety. technical field [0003] Embodiments of the present invention relate to the field of surgical instruments; more particularly, to surgical shears supported by an elongated tubular member intended for use in minimally invasive surgical procedures. Background technique [0004] Minimally invasive surgery (MIS) (e.g., endoscopy, laparoscopy, thoracoscopy, cystoscopy, etc.) The patient undergoes surgery. Typically, a cannula is inserted through the incision, providing access for surgical instruments. The surgical site typically includes a body cavity, such as a patient's abdominal cavity. The body lumen can optionally be dilated by using a cleaning fluid, such as insufflation gas. In traditional minimally invasive surge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/3201
CPCA61B17/3201A61B17/28A61B17/2804A61B17/2816A61B34/30A61B34/71A61B2017/2926A61B2017/2937A61B2017/2939A61B2017/294Y10T29/49826
Inventor T·G·库珀
Owner INTUITIVE SURGICAL OPERATIONS INC
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