Electrosurgical instrument and device with such an instrument

A technology of electrosurgical instruments and instruments, which is applied in the direction of heating surgical instruments, parts of surgical instruments, medical science, etc., and can solve problems such as manual bending of tips

CN106137383AActive Publication Date: 2016-11-23爱尔博电子医疗仪器股份有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2016-11-23

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Abstract

The invention relates to an electrosurgical instrument, especially for argon plasma coagulation, with a handle (10), an outer shaft (12) that surrounds an electrode and / or an inner shaft (11, 111) and is held in the handle (10), and an actuation mechanism (13) on the handle (10) to move the outer shaft (12) in the axial direction relative to the electrode / to the inner shaft (11, 111). The invention is characterized in that the inner shaft and / or the electrode (11, 111) are mechanically connected with one another in a distal end area (65) of the outer shaft (12) in such a way that the inner shaft and / or the electrode (11, 111) can be bent by moving the outer shaft (12) relative to the inner shaft and / or to the electrode (11, 111).
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Description

technical field

[0001] The invention relates to an electrosurgical instrument having the features of the preamble of claim 1 , especially for argon plasma coagulation. Such a device is known, for example, from US 2009 / 0125023 A1. The invention also relates to a device with such an instrument. Background technique

[0002] Electrosurgical instruments of the type mentioned at the outset are used to cut or coagulate tissue with high-frequency alternating current. Argon plasma coagulation (APC) is a specific applied form of electrosurgery in which high-frequency current is delivered through ionized argon gas in a contactless manner.

[0003] Energy input takes place in the known devices mentioned at the outset by varying the exposed length of the electrodes. To do this, there is provided an axially movable outer shaft which surrounds and isolates the electrodes and which can be displaced along the electrodes to expose them as required.

[0004] An important requirement of su...

Examples

Embodiment Construction

[0082] Figures 1 to 8 An exemplary embodiment of an electrosurgical instrument that may be used to work on biological tissue, for example for argon plasma coagulation, is shown.

[0083] The invention is not limited to instruments for argon plasma coagulation, but is generally applicable to instruments in the field of electrosurgery, where the tip of the shaft is moved actively, ie from a handle.

[0084] The electrode 11 of the exemplary embodiment may be, for example, a hollow electrode (APC electrode) having a gas passage. Other electrodes are possible.

[0085] Figures 1 to 3 The individual parts of the instrument are shown in the disassembled state, which are connected in the region of the tip of the shaft by bending of the outer shaft 12 , which is controlled from the handle 10 .

[0086] figure 1 The distal region 65 of the outer shaft 12 of the instrument is shown in the region of the tip without the fitting part in the outer shaft provided in the mounted state. ...