Expanding cannula

Details Expanding cannula Expanding cannula

2007-10-04

2011-10-25

Hughes, S. Thomas (Department: 3731)

Surgery

Instruments

Internal pressure applicator

C604S109000

Reexamination Certificate

active

08043319

ABSTRACT:
An elongated cannula with an inner tube that is designed to cooperate with a corresponding outer tube. The cannula may include a cam mechanism, a plurality of flexible members designed to expand and deploy when the inner and outer tubes move relative to each other, and a pressure ring disposed on the outer tube. The inner and outer tubes are slidably moveable relative to each other in at least one direction.

REFERENCES:
patent: 5139511 (1992-08-01), Gill et al.
patent: 5171223 (1992-12-01), Herzberg
patent: 5197971 (1993-03-01), Bonutti
patent: 5637097 (1997-06-01), Yoon
patent: 5857999 (1999-01-01), Quick et al.
patent: 5888196 (1999-03-01), Bonutti
patent: 6632197 (2003-10-01), Lyon
patent: 2005/0119685 (2005-06-01), Smith
patent: 2007/0162066 (2007-07-01), Lyon
patent: WO 2005/037079 (2005-04-01), None
European Search Report dated Feb. 20, 2008 issued in EP 07 01 9399.0.

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