Bipolar medical instrument
First Claim
1. A bipolar medical instrument, comprising:
- a tubular shaft having a proximal end and a distal end;
at least two jaw parts arranged movably, one relative to the other, at said distal end of said tubular shaft and coupled one to the other via a joint, each of said at least two jaw parts forming a work electrode of different polarity;
a separate current line for each of said at least two jaw parts, one of such current lines being constituted by an axially movable force transmission element arranged in said tubular shaft and forcelockingly connected to at least one of said jaw parts, wherein at least one of said jaw parts comprises, at least in the region of said joint, a single-piece main body made from an electrically insulating material on which an electrically conductive jaw part insert is fastened, which forms said respective work electrode and which is connected, in an electrically conductive fashion, to said current line for said jaw part; and
wherein said jaw part insert is connected with said main body in force-locking and in positive fashion and is fastened on said main body by a dovetail connection.
2 Assignments
0 Petitions
Accused Products
Abstract
A bipolar medical instrument comprises a tubular shaft and two jaw parts. The jaw parts are arranged movably, one relative to the other, at the distal end of the tubular shaft and coupled one with the other via a joint. Each of the jaw parts forms a work electrode of different polarity. Each jaw part has associated to it a separate current line, one of such current lines being constituted by an axially movable force transmission element that is arranged in the tubular shaft and that is frictionally coupled to at least one of the jaw parts. At least one of the jaw parts comprises, at least in the region of the joint, a single-piece main body made from an electrically insulating material on which an electrically conductive jaw part insert is fastened, which forms a respective work electrode and which is connected, in an electrically conductive fashion, to the respective associated current line.
-
Citations
22 Claims
-
1. A bipolar medical instrument, comprising:
-
a tubular shaft having a proximal end and a distal end;
at least two jaw parts arranged movably, one relative to the other, at said distal end of said tubular shaft and coupled one to the other via a joint, each of said at least two jaw parts forming a work electrode of different polarity;
a separate current line for each of said at least two jaw parts, one of such current lines being constituted by an axially movable force transmission element arranged in said tubular shaft and forcelockingly connected to at least one of said jaw parts, wherein at least one of said jaw parts comprises, at least in the region of said joint, a single-piece main body made from an electrically insulating material on which an electrically conductive jaw part insert is fastened, which forms said respective work electrode and which is connected, in an electrically conductive fashion, to said current line for said jaw part; and
wherein said jaw part insert is connected with said main body in force-locking and in positive fashion and is fastened on said main body by a dovetail connection. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
-
-
19. A bipolar medical instrument, comprising:
-
a tubular shaft having a proximal end and a distal end;
at least two jaw parts arranged movably, one relative to the other, at said distal end of said tubular shaft and coupled one to the other via a joint, each of said at least two jaw parts forming a work electrode of different polarity;
a separate current line for each of said at least two jaw parts, one of such current lines being constituted by an axially movable force transmission element arranged in said tubular shaft and forcelockingly connected to at least one of said jaw parts, wherein at least one of said jaw parts comprises, at least in the region of said joint, a single-piece main body made from an electrically insulating material on which an electrically conductive jaw part insert is fastened, which forms said respective work electrode and which is connected, in an electrically conductive fashion, to said current line for said jaw part; and
wherein one of said jaw parts is immovably connected with said tubular shaft, and at least that jaw part comprises said main body having an electrically insulating material and is connected in electrically conductive fashion with said tubular shaft via an electrically conductive wire element which is embedded in said main body of said jaw part.
-
-
20. A bipolar medical instrument, comprising:
-
a tubular shaft having a proximal end and a distal end;
at least two jaw parts arranged movably, one relative to the other, at said distal end of said tubular shaft and coupled one to the other via a joint, each of said at least two jaw parts forming a work electrode of different polarity;
a separate current line for each of said at least two jaw parts, one of such current lines being constituted by an axially movable force transmission element arranged in said tubular shaft and forcelockingly connected to at least one of said jaw parts, wherein at least one of said jaw parts comprises, at least in the region of said joint, a single-piece main body made from an electrically insulating material on which an electrically conductive jaw part insert is fastened, which forms said respective work electrode and which is connected, in an electrically conductive fashion, to said current line for said jaw part; and
wherein a proximal section of said second jaw part comprises a recessed portion with two legs extending in longitudinal direction, with a proximal section of said jaw part being arranged between such legs and being connected with said legs in articulated fashion.
-
-
21. A bipolar medical instrument, comprising:
-
a tubular shaft having a proximal end and a distal end;
at least two jaw parts arranged movably, one relative to the other, at said distal end of said tubular shaft and coupled one to the other via a joint, each of said at least two jaw parts forming a work electrode of different polarity;
a separate current line for each of said at least two jaw parts, one of such current lines being constituted by an axially movable force transmission element arranged in said tubular shaft and forcelockingly connected to at least one of said jaw parts, wherein at least one of said jaw parts comprises, at least in the region of said joint, a single-piece main body made from an electrically insulating material on which an electrically conductive jaw part insert is fastened, which forms said respective work electrode and which is connected, in an electrically conductive fashion, to said current line for said jaw part; and
wherein a proximal section of said first jaw part comprises a fork section which is engaged by said force transmission element.
-
-
22. A bipolar medical instrument, comprising:
-
a tubular shaft having a proximal end and a distal end;
at least two jaw parts arranged movably, one relative to the other, at said distal end of said tubular shaft and coupled one to the other via a joint, each of said at least two jaw parts forming a work electrode of different polarity, with at least one of said jaw parts comprising a single-piece main body made from an electrically insulating material in which an electrically conductive jaw part insert is located that forms the respective work electrode for the respective jaw part;
a separate current line for each of said at least two jaw parts, one of such current lines being constituted by an axially movable force transmission element arranged in said tubular shaft and forcelockingly connected to at least one of said jaw parts and said electrically conductive jaw part insert located in the single-piece main body is electrically connected to the current line.
-
Specification