Abstract: A coagulation forceps with a tubular shaft and with two forceps limbs and, which can both be movable or of which one is fixed, are uncovered on the gripping surfaces that face one another and serve for gripping tissue to be treated. At the distal ends, they have end surfaces, which contact a common plane, and are insulated on their outer sides that face away from one another, and provision is made for current connections for connection to a radiofrequency generator or to a current source for bipolar coagulation. Here, not only the gripping surfaces, but also the distal end surfaces of the forceps limbs and are uncovered and these uncovered end surfaces can be connected to uncovered outer surfaces of the forceps limbs and continuing said end surfaces such that tissue contacted by the two end surfaces and/or the outer surfaces can also be coagulated in a bipolar manner.

Abstract: A coagulation forceps with a tubular shaft and with two forceps limbs and, which can both be movable or of which one is fixed, are uncovered on the gripping surfaces that face one another and serve for gripping tissue to be treated. At the distal ends, they have end surfaces, which contact a common plane, and are insulated on their outer sides that face away from one another, and provision is made for current connections for connection to a radiofrequency generator or to a current source for bipolar coagulation. Here, not only the gripping surfaces, but also the distal end surfaces of the forceps limbs and are uncovered and these uncovered end surfaces can be connected to uncovered outer surfaces of the forceps limbs and continuing said end surfaces such that tissue contacted by the two end surfaces and/or the outer surfaces can also be coagulated in a bipolar manner.

Abstract: In an electro-surgical instrument (1), two electrode surfaces (25, 27) are provided for a first electrode (15, 31, 32, 34, 36) having different sizes, each forming a pair of electrodes with electrode surfaces (26, 28) of a second electrode (14, 16, 33). The smaller electrode surface (25) of the first electrode (15, 31, 32, 34, 36) can be used as the active electrode for cutting and the larger electrode surface (27) of the first electrode (15, 31, 32, 34, 36) is used for coagulation. During operation, the electrodes (14, 15, 16, 31, 32, 33, 34, 36) are connected to a two-pole outlet of a commercial generator that can switch between two output signals for cutting and coagulation. A layered, stacked structure of the effective area (8) of the instrument (1) of electrode bodies (14, 15, 16, 31, 32, 33, 34, 36) with intermediate insulating layers (17) allows a design resembling the shape of a knife or a blade (11).

Abstract: An instrument for the unipolar ablation of heart tissue comprises: an electrically conductive shaft tube (20) that is electrically insulated on the outer lateral surface; an electrical connection, which is placed at the proximal end of the shaft tube (20) and which is connected to the shaft tube (20) in a conductive manner; a flushing connection, which is situated at the proximal end of the shaft tube (20) and which communicates with the bore of the shaft tube (20), and; an electrode (14), which is inserted into the distal end of the shaft tube (20), is connected to the shaft tube (20) in an electrically conductive manner, and which has at least one discharge opening (34) that communicates with the bore of the shaft tube (20). The electrode (14) is detachably connected to the distal end of the shaft tube (20).

Abstract: In an electro-surgical instrument (1), two electrode surfaces (25, 27) are provided for a first electrode (15, 31, 32, 34, 36) having different sizes, each forming a pair of electrodes with electrode surfaces (26, 28) of a second electrode (14, 16, 33). The smaller electrode surface (25) of the first electrode (15, 31, 32, 34, 36) can be used as the active electrode for cutting and the larger electrode surface (27) of the first electrode (15, 31, 32, 34, 36) is used for coagulation. During operation, the electrodes (14, 15, 16, 31, 32, 33, 34, 36) are connected to a two-pole outlet of a commercial generator that can switch between two output signals for cutting and coagulation. A layered, stacked structure of the effective area (8) of the instrument (1) of electrode bodies (14, 15, 16, 31, 32, 33, 34, 36) with intermediate insulating layers (17) allows a design resembling the shape of a knife or a blade (11).

Abstract: Coagulation tweezers (1) provided with two tweezers legs (2) and (3), with their mutual pivoting apart from each other being limited by a stop element (6) and a counter stop element (7). Here, the protrusion or head (10) of the stop element (6), during the opening or closing the legs (2) and (3) of the tweezers, is movable inside the counter stop element (7) in reference thereto, and is spaced apart a distance in the radial direction during its relative displacement or pivotal path movement in reference to the interior longitudinal cavity (12) of the counter stop element (7) so that during normal pivotal motions of the tweezers no friction develops by these stop elements.

Abstract: Bipolar scissors (1) with two curved shear blades (2, 3) are provided with insulation on each of the shear blades (2, 3), which is distributed on the two shear blades (2, 3) such that each of the shear blades (2, 3) is insulated only over a part of its length, however the insulation is continuous in this area, i.e. at each of the two shear blades (2, 3) only a single longitudinal area is coated in a lamellar and uninterrupted fashion with insulation (11, 12). The insulation (11, 12) of each of the shear blades (2) complements each other in the closed position of the scissors (11) such that the overall insulation essentially extends over the entire length of the two shear blades (2, 3). This way, each piece of the curved insulation follows the curvature of the shear blade, and in case of mounted insulating plates, there is little stress and the insulation can also withstand several autoclaving processes without separating from the shear blades (2, 3).

Abstract: Coagulation tweezers (1) provided with two tweezers legs (2) and (3), with their mutual pivoting apart from each other being limited by a stop element (6) and a counter stop element (7). Here, the protrusion or head (10) of the stop element (6), during the opening or closing the legs (2) and (3) of the tweezers, is movable inside the counter stop element (7) in reference thereto, and is spaced apart a distance in the radial direction during its relative displacement or pivotal path movement in reference to the interior longitudinal cavity (12) of the counter stop element (7) so that during normal pivotal motions of the tweezers no friction develops by these stop elements.

Abstract: A bipolar coagulation electrode has electrode poles arranged at a distance from each other and one behind the other in a region of the distal electrode end in the longitudinal profile of the coagulation electrode. At least one of the two electrode poles is built to be electrically conductive and to deliver power over only a portion of its circumference and the remaining portion of its circumference is electrically insulated.

Abstract: An instrument for the unipolar ablation of heart tissue comprises: an electrically conductive shaft tube (20) that is electrically insulated on the outer lateral surface; an electrical connection, which is placed at the proximal end of the shaft tube (20) and which is connected to the shaft tube (20) in a conductive manner; a flushing connection, which is situated at the proximal end of the shaft tube (20) and which communicates with the bore of the shaft tube (20), and; an electrode (14), which is inserted into the distal end of the shaft tube (20), is connected to the shaft tube (20) in an electrically conductive manner, and which has at least one discharge opening (34) that communicates with the bore of the shaft tube (20). The electrode (14) is detachably connected to the distal end of the shaft tube (20).

Abstract: A bipolar coagulation electrode (1) has electrode poles (3a, 3b, 4a, 4b) arranged at a distance from each other and one behind the other in a region of the distal electrode end (2) in the longitudinal profile of the coagulation electrode (1). At least one of the two electrode poles (3a, 3b, 4a, 4b) is built to be electrically conductive and to deliver power over only a portion of its circumference and the remaining portion of its circumference is electrically insulated.