Test electrode for argon plasma coagulation medical instrument

Patent metadata

Field	Value
Publication number	US-9880218-B2
Application number	US-201414518305-A
Country	US
Kind code	B2
Filing date	Oct 20, 2014
Priority date	Oct 21, 2013
Publication date	Jan 30, 2018
Grant date	Jan 30, 2018

Abstract

To provide the user of an RF-surgical instrument with a non-hazardous short test operation, for example so as to test the ignitability of an argon plasma probe, provision is made for an instrument test arrangement, which is installed into a feeding medical device or into a neutral conductor connecting cable or which is provided as plug adapter, which is to be plugged between the device and the neutral conductor connecting cable. The instrument test arrangement comprises at least one or, better yet, two ignition test electrodes, which are connected to conductors of the device or of the neutral conductor cable, preferably via impedance components. The ignition test electrodes can be accessed insofar as a spark can be created simultaneously to both ignition test electrodes by means of an operational probe or an instrument.

First claim

What is claimed as new and desired to be protected by Letters Patent of the United States is:

1. An instrument test arrangement, in particular for medical instruments for argon plasma coagulation, comprising:
an electrode arrangement configured to test a medical instrument, the electrode arrangement comprising a first ignition test electrode and a second ignition test electrode that are arranged adjacent to one another and are connected electrically to respective first and second neutral conductors of a flexible neutral conductor cable or of a device,
wherein the first and second neutral conductors are insulated against one another and are connected to respective first and second partial electrodes of a neutral electrode arrangement and to a split circuit configured to measure the ohmic resistance or impedance between the first and second partial electrodes, and
wherein the first and second partial electrodes are configured for attachment to a patient.

2. The instrument test arrangement of claim 1 , wherein the electrode arrangement is part of a connector, which comprises at least one contact for connecting to a medical device, so that the first and second ignition test electrodes are arranged in or at the connector, wherein the flexible neutral conductor cable extends away from the connector to the neutral electrode arrangement or a neutral electrode connection.

3. The instrument test arrangement of claim 2 , wherein the connector comprises a body, which is embodied of an insulator material and which supports the first and second ignition test electrodes.

4. The instrument test arrangement of claim 3 , wherein the connector comprises a plug body, which is embodied of an insulator material.

5. The instrument test arrangement of claim 1 , wherein the electrode arrangement is arranged at the flexible neutral conductor cable between a connector and the neutral electrode arrangement or a neutral electrode connection.

6. The instrument test arrangement of claim 1 , wherein the electrode arrangement is arranged at a neutral electrode connection or the neutral electrode arrangement, which are connected to a connector via the flexible neutral conductor cable.

7. The instrument test arrangement of claim 1 , wherein the instrument test arrangement is arranged in or at the device, which serves to feed the instrument or that the instrument test arrangement is embodied as plug adapter, which is to be arranged between a neutral socket of the device and a connector of the neutral conductor cable.

8. The instrument test arrangement of claim 1 , wherein the first and second ignition test electrodes are connected to the respective first and second neutral conductors via respective first and second components, which each comprises an impedance.

9. The instrument test arrangement of claim 8 , wherein the first and second components each comprises a capacitance.

10. The instrument test arrangement of claim 8 , wherein the first and second components each comprises an ohmic resistance.

11. The instrument test arrangement of claim 8 , wherein the first and second components comprise the same electrical characteristics.

Assignees

• Erbe Elektromedizin

Inventors

• Nold Bernhard Tobias
• Zenker Matthias
• Selig Peter

Classifications

• A61B90/00

  Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges · CPC title

• A61B18/14

  Probes or electrodes therefor · CPC title

• A61B2018/00875

  Resistance or impedance · CPC title

• A61B2018/00589

  Coagulation · CPC title

• A61B2017/00477

  Coupling (A61B2017/0046 takes precedence) · CPC title