Abstract: A forceps instrument comprises, for the support of at least one pivotally supported branch, a bearing insert which is inserted into a base in order to support at least one pivotable branch. The bearing insert may be inserted transversely with respect to the pivot axis into a corresponding compartment of the base and fixed there in the compartment, due to detent action. The bearing insert comprises two bearing elements, including cylindrical journals, which are arranged on bearing parts of the bearing insert, without being in contact with each other, the bearing parts having the form of plates, that are oriented parallel to each other. The two journals come into engagement with corresponding openings of the branch, in which case the distance remaining between the end sides of the journals can be used for the arrangement of miscellaneous elements, including a cutting knife.

Abstract: A medical instrument comprising a device for activating or deactivating a function of the instrument. The device comprises first and second parts, which are each movable into an operative position relative to the other part to activate or deactivate a function of the instrument. A second control element for moving the second part into the operative position provides a control portion and comprises, for moving the first part into the operative position, a first control element which provides an additional control portion. The first control element can be moved in an opposite direction the direction from the second control element. Accordingly, the function is activated by moving a control element in a distal direction, and by moving another control element in a proximal direction. A deflection of force by one actuating element for actuating the first part or the second part in the opposite direction is not necessary.

Abstract: An instrument (10) that is usable for tissue fusion and cutting includes a counter support (22) configured as a thin membrane that is assigned to a cutting electrode (17) arranged between two electrode pairs. The thin membrane is spanned in a frame (25) on which it is held with its circumferential surface in a substance bond manner. The circumferential surface thereby extends in an angle, preferably in a right angle, relative to the coagulation electrodes (28, 29) formed by the frame top side. The pressing force applied by the membrane with which biological tissue (32) is pressed against cutting electrode (17) is thus predominantly created by the tensile stress present in the membrane.

Abstract: A forceps instrument comprises, for the support of at least one pivotally supported branch, a bearing insert which is inserted into a base in order to support at least one pivotable branch. The bearing insert may be inserted transversely with respect to the pivot axis into a corresponding compartment of the base and fixed there in the compartment, for example due to detent action. The bearing insert comprises two bearing elements, such as cylindrical journals, which are arranged on bearing parts of the bearing insert, without being in contact with each other, said bearing parts having the form of plates, for example, that are oriented parallel to each other. The two journals come into engagement with corresponding openings of the branch, in which case the distance remaining between the end sides of the journals can be used for the arrangement of miscellaneous elements, such as a cutting knife.

Abstract: A medical instrument comprising a device for activating or deactivating a function of the instrument. The device comprises first and second parts, which are each movable into an operative position relative to the other part to activate or deactivate a function of the instrument. A second control element for moving the second part into the operative position provides a control portion and comprises, for moving the first part into the operative position, a first control element which provides an additional control portion. The first control element can be moved in an opposite direction the direction from the second control element. Accordingly, the function is activated by moving a control element in a distal direction, and by moving another control element in a proximal direction. A deflection of force by one actuating element for actuating the first part or the second part in the opposite direction is not necessary.