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Direct pull surgical gripper

A technique of surgery and minimally invasive surgery, applied in the field of surgical instruments, can solve the problems of inefficiency, increased tension, increased cross section, etc.

Active Publication Date: 2012-11-21
INTUITIVE SURGICAL OPERATIONS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Inefficiencies in converting wire tension to end effector forces increase the required tension and thus the required cross section

Method used

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  • Direct pull surgical gripper
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  • Direct pull surgical gripper

Examples

Experimental program
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Embodiment Construction

[0034] 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 this description.

[0035] 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 disclosure. The following detailed description is not intended to be limiting, and only the scope of the embodiments of the present invention is defined by the issued patent claims.

[0036] The terminology used herein is for describing particular embodiments only and is not intended to limit the inve...

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PUM

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Abstract

A surgical end effector includes a clevis and two jaws pivotally coupled to the clevis. A wire is coupled to each jaw and extended through a guide way in the other jaw and through an end of the clevis. The jaws may be opened and closed by pushing and pulling on the two cables. Pulling on each wire creates a closing force in both jaws. A rocking pin may be pivotally supported by the clevis and pivotally coupled to the jaws to constrain the jaws to have opposite motions. The clevis may be coupled to an elongate shaft and the wires extended through the shaft to provide an endoscopic instrument. A wire guide may support the wires in the shaft such that they are able to transmit a compressive force without buckling. The wires may carry electricity to the jaws for electrocautery.

Description

technical field [0001] Embodiments of the present invention relate to the field of surgical instruments, and more particularly, to surgical instruments adapted for use in minimally invasive surgery. Background technique [0002] Minimally Invasive Surgery (MIS) (eg, endoscopy, laparoscopy, thoracoscopy, cystoscopy, etc.) Surgery. In general, a cannula is inserted through the incision to provide access ports for surgical instruments. The surgical site typically includes a body cavity, such as a patient's abdominal cavity. The body cavity can optionally be inflated with clean fluid, such as insufflation. In traditional minimally invasive surgery, physicians manipulate tissue by manipulating the manual end effectors of elongated surgical instruments while viewing the surgical site on a video monitor. [0003] Elongated surgical instruments typically have an end effector in the form of a surgical tool, such as forceps, scissors, clips, needle holders, etc., at one end of the...

Claims

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Application Information

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IPC IPC(8): A61B19/00A61B18/12A61B17/29
CPCA61B2017/003A61B2019/2242A61B2017/2945A61B19/2203A61B2017/2932A61B2018/1432A61B2017/2938A61B18/1445A61B2018/00595A61B17/29A61B34/30A61B34/71A61B2017/2933A61B2017/2939A61B2018/00077A61B2018/00083
Inventor T·G·库珀
Owner INTUITIVE SURGICAL OPERATIONS INC
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