Apparatus for tissue cutting and sealing

A tissue and clamp technology, applied in the application, mechanical properties of instruments, parts of surgical instruments, etc., can solve the problems of reducing the quality and stiffness of clamp materials, reducing compression force, etc.

Active Publication Date: 2015-07-08
AESCULAP AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This reduces the material mass and stiffness of the jaw,

Method used

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  • Apparatus for tissue cutting and sealing
  • Apparatus for tissue cutting and sealing
  • Apparatus for tissue cutting and sealing

Examples

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Embodiment Construction

[0027] Applicants have developed an improved electrosurgical device that addresses the need for reduced size while also addressing the need for high compressive force between the jaws. The improved electrosurgical device is designed using a holistic approach that removes, simplifies, or combines individual components where appropriate, while maximizing the strength and stiffness of the jaws.

[0028] The following examples illustrate features designed to address competing demands for jaws with reduced dimensions and jaws with higher strength stiffness. Although various features will be described and shown on electrosurgical device 100, many of these features are stand-alone features. Some or all of these features may, but need not, be present on the same device, and may be used in different combinations in different embodiments of the invention. Devices according to the present invention may include device features and characteristics shown and described in US Application Nos...

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Abstract

An electrosurgical device for cutting and sealing tissue includes an upper jaw located at a distal end of the electrosurgical device that opposes a lower jaw. The lower jaw is pivotally connected to the upper jaw by a pivot connection. The pivot connection includes a passage that contains a portion of the upper jaw. The upper jaw is axially displaceable through the passage to pivot the upper jaw relative to the lower jaw between a relatively open condition and a relatively closed condition. The upper jaw and lower jaw are operable in the relatively closed condition to deliver RF energy to tissue.

Description

[0001] related application [0002] This application claims the benefit of US Provisional Patent Application Serial No. 61 / 705,721, filed September 26, 2012, the entire contents of which are hereby incorporated by reference for all purposes. technical field [0003] The present application relates generally to electrosurgical instruments having opposed jaws for cutting and sealing tissue, and more particularly to electrosurgical instruments with jaws having improved stiffness and compressive strength and improved articulation mechanism. Background technique [0004] Bipolar electrosurgical instruments apply radio frequency (RF) energy to a surgical site to cut, resect or coagulate tissue. A particular application of these electrosurgical effects is the sealing of blood vessels or thin slices of tissue. Typical instruments take the form of a pair of opposed jaws or forceps, each with one or more electrodes on the tip of the jaws. In electrosurgery, the electrodes are place...

Claims

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Application Information

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IPC IPC(8): A61B18/14A61B18/00A61B19/00
CPCA61B2019/305A61B2018/00309A61B2018/0063A61B18/1445A61B18/12A61B2090/035A61B2018/00184A61B2018/00202A61B2018/00601
Inventor 埃瑞克·瓦尔伯格布兰登·劳德米尔克
Owner AESCULAP AG
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