WO1998002103B1 - Instrument with independent pliers - Google Patents

Abstract

An instrument used for endoscopic interventions has a shaft with two pliers at its distal end which can be independently actuated by actuating elements and which can swivel around an axis that is at least approximately perpendicular to the longitudinal axis of the instrument, and at least one further channel. The instrument is characterised by a combination of the following features: both pliers can independently swivel around parallel swivelling axes so that their mutual distance in the direction of the transverse axis of the instrument can be altered; the distal outlet of a continuous channel is provided between both pliers and designed to receive a surgical instrument that co-operates with the jaws of both pliers.

Claims

AMENDED CLAIMS [received at the International Bureau on 13 January 1998 (13.01.98); original claims 1 and 8 changed; all other claims unchanged (6 pages)] An instrument for use in endoscopic procedures, comprising a shaft having at its distal end two independently operable by actuators pliers elements, and having at least one further channel, characterized by the combination of the following features: at least one of the pliers is elements as such pivotable, that the distance of the barrel portions of the pliers elements in the direction of a transverse axis of the instrument can be changed, the further channel is designed so that an operating instrument can be inserted into it, which cooperates with the jaw parts of both forceps elements, 2. Instrument according to claim 1, characterized in that the one or more pivotable jaw parts of each forceps element are pivotable about an axis which is perpendicular to the pivot axis of the forceps element. 3. Instrument according to claim 1 or 2, characterized in that at the proximal end of the instrument for each pliers element, a pivoting actuator is provided, the actuation of the pivot position of the respective pliers member changes without the relative position of the two jaws of this pliers changed each other becomes. 4. Instrument according to one of claims 1 to 3, characterized in that the pliers elements are constructed in the manner of known pliers, which are used in particular as a unit in a shaft. 5. Instrument according to one of claims 1 to 4, characterized in that the actuating elements for the jaws of the pliers are gripping pieces which are biased in the position in which the forceps jaw is closed. 6. Instrument according to one of claims 1 to 5, characterized in that the pliers in type flexible Bler forceps are constructed, the distal end of which is bendable in a conventional manner. 7. Instrument according to one of claims 1 to 6, characterized in that transmission elements are provided which generate the pivoting or bending movement. 8. Instrument according to one of claims 1 to 7, characterized in that distally arranged actuators are provided which generate the pivoting or bending movement of the forceps jaws. 9. Instrument according to claim 8, characterized in that the actuators are electrically operated micro-ente. 10. Instrument according to one of claims 1 to 5, characterized in that the forceps are rigid forceps, the distal end of which is angled about an axis or displaceable by displacing a sleeve or the like. Against a resilient bias, and the jaw parts via a rod or Like. Are connected to a proximally arranged actuator. 11. Instrument according to claim 10, characterized in that a compensation mechanism is provided which prevents a change in the relative angular position of the two jaw parts of the mouth when Abwinkein or pivoting of the distal end as a unit. 22 12. Instrument according to claim 10 or 11, characterized in that the rod is designed to be flexible in a conventional manner in the region of the bend. 13. Instrument according to one of claims 10 to 12, characterized in that the rod closes on train or pressure the mouth. 14. Instrument according to any one of claims 10 to 13, characterized in that an adjusting element is provided, by the actuation of the distal end is bendable or pivotable. 15. Instrument according to claim 14, characterized in that the adjusting element is an adjusting screw. 16. Instrument according to claim 15, characterized in that the adjusting screw is arranged at an angle of 90 ° to the longitudinal axis of the instrument. 17. Instrument according to claim 15, characterized in that the adjusting screw is arranged concentrically to the longitudinal axis of the instrument. 18. Instrument according to one of claims 1 to 17, characterized in that certain angular positions of the two pliers are indexed, or that the adjusting 23 screw has a detent at certain angular positions. 19. Instrument according to one of claims 1 to 18, characterized in that the instrument can be used in a trocar shaft. 20. Instrument according to claim 19, characterized in that the trocar shaft has an outer diameter of 10 to 13 mm. 21. Instrument according to one of claims 1 to 20, characterized in that in the continuous channel a sewing device or an adhesive device can be used. 22. An instrument according to claim 21, characterized in that the adhesive device is a catheter which allows the application of a fibrin sealant. 23. Device according to one of claims 1 to 22, characterized in that the forceps jaws are formed by two gripping jaws or each. 24. The device according to claim 23, characterized in that the gripping jaws are provided with teeth. 24 25. The apparatus of claim 23 or 24, characterized in that the shape of the gripping jaws is adapted to be assembled tissue parts. 26. Device according to one of claims 1 to 25, characterized in that the forceps jaws are additionally displaceable in the direction of the instrument longitudinal axis. 27. The device according to / claim 26, characterized in that each forceps jaw is displaceable independently of the other forceps jaw.