Flexible, hydraulically actuated device for applying...

Details Flexible, hydraulically actuated device for applying... Flexible, hydraulically actuated device for applying...

A - Human Necessities

61

B

128/122

A61B 17/04 (2006.01) A61B 17/115 (2006.01) A61B 17/00 (2006.01) A61B 17/28 (2006.01)

Patent

CA 1204038

-21- A FLEXIBLE HYDRAULICALLY ACTUATED DEVICE FOR APPLYING SURGICAL FASTENERS ABSTRACT OF THE DISCLOSURE An apparatus for applying surgical fasteners to tissue is disclosed. The apparatus includes an actuator, an applicator section for applying the fasteners and a transversely flexible shaft connecting the applicator and the actuator. The actuator and applicator preferably each contain a hydraulic fluid chamber. The chambers communicate via a hydraulic line contained in the flexible shaft. Actuation of the instrument causes movement of a piston in the applicator fluid chamber, which causes application of the fasteners. A similar second hydraulic system is preferably provided for adjusting the axial posi- tion of an anvil used to clinch the fasteners. The two hydraulic control systems are operable wholly independently of each other, permitting precise con- trol of the anvil pressure on the tissue.

437270

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