Self protecting knife for curved jaw surgical instruments

Details Self protecting knife for curved jaw surgical instruments Self protecting knife for curved jaw surgical instruments

1996-11-18

1998-08-25

Buiz, Michael

Surgery

Instruments

Cutting, puncturing or piercing

606177, A61B 1732

Patent

active

057979383

ABSTRACT:
An electrosurgical hemostatic instrument including a curved end effector. A preferred embodiment of the invention provides a bipolar endoscopic clamping, coagulation and cutting device. In this device, a substantially straight, axially flexible knife is used to cut tissue grasped by the jaws of the end effector. The end effector includes a knife channel which is wider than the knife. The knife may include sacrificial contact points adapted to contact the walls of the knife channel as the knife moves through the channel, protecting the cutting edges of the knife blade from damage.

REFERENCES:
patent: 2068721 (1937-01-01), Wappler et al.
patent: 2676406 (1954-04-01), Hoke
patent: 4655216 (1987-04-01), Tischer
patent: 5290287 (1994-03-01), Boebel et al.
patent: 5389098 (1995-02-01), Tsuruta et al.
patent: 5445638 (1995-08-01), Rydell et al.
patent: 5554164 (1996-09-01), Wilson et al.

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