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Applicator for an electrosurgical instrument

A technology of electrosurgical instruments and high-frequency current, which is used in parts of surgical instruments, medical science, surgery, etc.

Inactive Publication Date: 2008-10-29
ERBE ELEKTROMEDIZIN GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, additional sealing components are required, however, this poses a problem since reusable instruments should be able to be sterilized

Method used

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  • Applicator for an electrosurgical instrument
  • Applicator for an electrosurgical instrument

Examples

Experimental program
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Embodiment Construction

[0037] The probe of FIG. 1 includes a gas and high-frequency current connection 1 located in the center of an insulating cap 2 .

[0038] In addition, a gas and high-frequency current supply line 3 is provided, which extends from the connection area 1 across the entire device and forms a nozzle on the outlet side. The gas and high-frequency current supply pipe 3 is made of an electrically conductive material such as stainless steel.

[0039] A cutting electrode 4 is fastened, preferably by welding, to the inner side of the gas and high-frequency current supply tube 3 , ie in the region of the outer end.

[0040] The insulating cap 2 has an internal thread 5 for connecting the probe to a handle (not shown) of an electrosurgical instrument.

[0041] An insulating sleeve 6 which is movable relative to the common longitudinal axis of the probes allows the cutting electrode 4 to be exposed or covered, ie it can be positioned anywhere in the path section indicated as L.

[0042] A f...

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PUM

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Abstract

An applicator for an electrosurgical instrument, alternatively for argon-plasma coagulation and cutting, also argon-supported. The applicator includes a gas and high frequency current terminal, a cutting electrode attached to a gas and high frequency current supply pipe, an insulating cap for detachably fastening the applicator on the instrument handle, and an insulating casing tube displaceable relative to the applicator common longitudinal axis for exposing or covering the cutting electrode and surrounding the gas and high frequency current supply pipe over a longitudinal section, and a collar or an external right-angle bend at the casing tube distal end. At least one radially surrounding gas-sealing inhibiting device is arranged between an inside of the casing tube and an outside of the gas and high frequency current supply pipe, allowing that a respective position be frictionally fixed at any location of the displacement path of the casing tube.

Description

technical field [0001] The present invention relates to a probe for an electrosurgical instrument, optionally for argon plasma coagulation and for argon-supported ablation. Background technique [0002] A laparoscopic electrosurgical pin is known from US-PS 5,306,238 and from European patent document EP 0604539B1 belonging to the same patent family. Said document basically describes a surgical instrument with a handle that allows two modes of operation, conventional electrosurgery and gas-supported electrosurgery. [0003] In the described approach, the safety of the corresponding electrosurgical device is increased by reducing the possibility of accidental tissue penetration where the device is introduced into a narrow passage or for the surgeon's view is limited. A disadvantage described in this respect is that, with prior art handles, punctures can occur if the exposed electrode is introduced too far into an access cannula. [0004] Thus, said patent document relates to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B18/00
CPCA61B18/042
Inventor G·法林K·菲舍尔V·巴特尔
Owner ERBE ELEKTROMEDIZIN GMBH
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