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Electrosurgical instrument

An electrosurgical instrument and cavity technology, which can be applied to heating surgical instruments, parts of surgical instruments, medical science, etc., and can solve problems such as hindering knife actuating parts

Pending Publication Date: 2020-11-27
ERBE ELEKTROMEDIZIN GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the open position of the branch, the slit of the hinge body pivots from the direction of extension of the adjacent knife guide and thus blocks the knife actuator

Method used

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  • Electrosurgical instrument
  • Electrosurgical instrument
  • Electrosurgical instrument

Examples

Experimental program
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Embodiment Construction

[0068] Figure 1 to Figure 4 Each of those shows an embodiment of an electrosurgical instrument 10 configured as a bipolar instrument according to an example. The electrosurgical instrument has a first branch 11 and a second branch 12 which are pivotably arranged at one another about a pivot axis S by means of a hinge 13 . The pivot axis S extends in the transverse direction Q.

[0069] exist figure 1 In the embodiment illustrated in , the branches 11 , 12 essentially show the jaws 14 , 15 , which extend in the distal region starting from the pivot axis S or the hinge 13 . The first jaw 14 and / or the second jaw 15 may be pivotably supported. To open or close the jaws 14 , 15 , the instrument 10 includes a corresponding actuation unit 16 . By means of the manipulation unit 16, additional actions can also be performed, for example, applying a voltage between the first tissue-contacting surface 17 at the first jaw 14 and the second tissue-contacting surface 18 at the second j...

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PUM

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Abstract

The invention refers to an electrosurgical instrument with a first branch and a second branch. The two branches are pivotably arranged at each other by means of a hinge. The hinge is formed by a support pin at the second branch and a corresponding support cavity at the first branch. Preferably one single hinge with one single support cavity and one single support pin is provided. At one side adjacent to the hinge location at which the support pin extends into the support cavity, a knife guide cavity is provided in the second branch for a moveable guided support of a knife. Parallel to the pivot axis defined by the hinge, the knife guide cavity is arranged adjacent to an axial end of the support pin. The hinge or the hinge location formed by the hinge at which the support pin is arranged inthe support cavity is only arranged on one side of the knife guide cavity viewed in a direction parallel to the pivot axis. The respective other side is free from hinge components, and does not contain means used for pivotably supporting the two branches at each other along the pivot axis.

Description

technical field [0001] The present invention relates to an electrosurgical instrument that can be used, for example, for thermal fusion or coagulation, and to a method for manufacturing an electrosurgical instrument. The electrosurgical instrument has two legs each having a jaw portion, wherein each jaw portion includes a tissue contacting surface. Via the tissue contacting surface, electrical current can be conducted through the clamped biological tissue, for example in order to seal the tissue. Background technique [0002] From EP 2926748 A1 an electrosurgical instrument is known which has two branches which are articulated to each other and a knife which is movably supported in a knife guide cavity. The two branches are configured in a U-shape in the region of the hinge. Accordingly, each branch has two side walls extending parallel and spaced apart from each other. In each branch, a support cavity is provided at one side wall, and a hollow cylindrical support pin ext...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B18/12A61B18/14
CPCA61B17/2816A61B17/285A61B17/29A61B17/295A61B18/1442A61B18/1445A61B2017/2947A61B18/12A61B18/14A61B2018/146A61B2018/1412A61B2018/00589A61B17/28A61B2018/1455A61B2090/0813A61B18/1482A61B2018/00178A61B2018/00083A61B2018/00107A61B2018/00607A61B2018/0063A61B2018/1293A61B2018/126
Inventor F.博布
Owner ERBE ELEKTROMEDIZIN GMBH
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