Bipolar coagulation electrode

• US 8,157,799 B2
• Filed: 03/25/2011
• Issued: 04/17/2012
• Est. Priority Date: 12/18/1998
• Status: Expired due to Term

• Current Assignee: Celon AG Medical Instruments
• Original Assignee: Celon AG Medical Instruments
• Inventors: Desinger, Kai, Stein, Thomas, Roggan, Andre
• Primary Examiner(s): COHEN, LEE S
• Application Number:
  US13/071,645
• Publication Number:
  US 20110172661A1
• Time in Patent Office: 389 Days
• Field of Search: 606/48, 606/50
• US Class Current: 606/50
• CPC Class Codes: A61B 18/1402 Probes for open surgery
• CPC Class Codes: A61B 2018/00023 closed, i.e. without wound contact by the fluid
• CPC Class Codes: A61B 2018/00029 open

Abstract

The invention concerns a bipolar coagulation probe (10) having an electrode tip (14) which has an end face (16) in which a pole (17) of a first electrode (18) and a pole (19) of a second electrode (20) are integrated. In accordance with the invention the bipolar coagulation probe (10) includes a temperature control unit (26) with a temperature control medium for temperature control of the end face (16).

Claims

1. A bipolar coagulation probe having a shank and a proximal end and a distal end and an end face at the distal end of the shank, in which a pole of a first electrode and a pole of a second electrode are integrated, characterized in that the coagulation probe includes a temperature control unit which is configured to temperature-control the coagulation probe in the region of its distal end by means of a temperature control medium;

and further characterized in that the first electrode has the form of a metal sleeve with a spherical end surface at least at the distal end, the metal sleeve is arranged centrally at the distal end and forms the pole of said first electrode, and said pole of said first electrode is surrounded by the second electrode which is tubular at the distal end, whereby the metal sleeve forming the pole of the first electrode is surrounded by the second pole of the second electrode, wherein

the temperature control unit includes a guide structure for the temperature control medium, with which the temperature control medium is guided to a rear side of the end face and from there at least partially deflected and guided back again; and

wherein

the guide structure includes a tube which is located substantially centrally within the shank and in which the temperature control medium is conveyed to the rear side of the end face and the guide structure guides the temperature control medium back past the tube on an outside of the tube.

2. A coagulation probe as set forth in claim 1 characterized in that the temperature control medium is a sterile, pyrogen-free physiological saline solution.

3. A coagulation probe as set forth in claim 1 characterized in that the temperature control medium is deionised water.

4. A coagulation probe as set forth in claim 1 characterized in that the temperature control unit is connected to a peristaltic pump.

5. A coagulation probe as set forth in one of claim 1 characterized in that the end face has bores through which the temperature control medium can issue.

6. A coagulation probe as set forth in claim 1 characterized in that the first electrode is tubular at least in the region of the electrode tip, wherein a distal end of the tubular first electrode forms the pole in the end face.

7. A bipolar coagulation probe having a proximal and a distal end and an end face at the distal end of a shank, in which a pole of a first electrode and a pole of a second electrode are integrated, wherein the coagulation probe includes a temperature control unit which is configured to temperature-control the coagulation probe in the region of its distal end by means of a temperature control medium, wherein:

said first electrode has a form of a sleeve with a spherical end surface at least in the region of the distal end of the shank, wherein a distal end of said first electrode forms a bottom of the sleeve and said pole of said first electrode in said end face; and

said second electrode is tubular at least in the region of the distal end of said shank, wherein a distal end of said tubular second electrode forms said pole of said second electrode in said end face;

said pole of said second electrode has a surrounding configuration and said pole of said first electrode is arranged within said surrounding pole of said second electrode, wherein,

the temperature control unit includes a guide structure for the temperature control medium, with which the temperature control medium is guided to a rear side of the end face and from there at least partially deflected and guided back again, and wherein

the guide structure includes a tube which is located substantially centrally within the shank and in which the temperature control medium is conveyed to the rear side of the end face and the guide structure guides the temperature control medium back past the tube on an outside of the tube.

8. A coagulation probe as set forth in claim 7, wherein the temperature control medium is a sterile, pyrogen-free physiological saline solution.

9. A coagulation probe as set forth in claim 7, wherein the temperature control medium is deionised water.

10. A coagulation probe as set forth in claim 7 characterized in that the temperature control unit is connected to a peristaltic pump.

11. A coagulation probe as set forth in one of claim 7, wherein the end face has bores through which the temperature control medium can issue.