| US 7,588,569 B2 | ||
| Medical instrument for the treatment of tissue by means of a high-frequency current and medical system with a medical instrument of this type | ||
| Klaus M. Irion, Liptingen (Germany); and Ulrich Hagelauer, Konstanz (Germany) | ||
| Assigned to Karl Storz GmbH & Co. KG, (Germany) | ||
| Filed on Sep. 22, 2004, as Appl. No. 10/946,936. | ||
| Application 10/946936 is a continuation of application No. PCT/EP03/02956, filed on Mar. 21, 2003. | ||
| Claims priority of application No. 102 12 841 (DE), filed on Mar. 22, 2002. | ||
| Prior Publication US 2005/0065513 A1, Mar. 24, 2005 | ||
| Int. Cl. A61B 18/18 (2006.01); A61B 5/05 (2006.01) | ||
| U.S. Cl. 606—46 [600/424; 606/41] | 17 Claims |
| 1. A medical instrument for the treatment of tissue by means of high-frequency current, comprising:
an elongate electrode carrier having a longitudinal axis, a distal region, a distal end and a proximal end;
at least one electrode arranged at said distal end of said electrode carrier which electrode can be supplied with high-frequency
current;
at least one electro-magnetically acting position sensor arranged in said distal region of said electrode carrier immediately
adjacent to said at least one electrode, said position sensor being arranged to produce an electrical signal when exposed
to a magnetic field and thereby to sense at least one of a position and an orientation of said at least one electrode; and
wherein said electrode carrier has two carrier parts arranged next to each other configured as two elongated thin rods, wherein
the at least one electrode extends between the two rods at the distal end thereof, and said at least one position sensor is
arranged at one of said two carrier parts, while an HF supply line for said electrode is arranged in the other one of said
two carrier parts.
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