Bony tissue resector

Details Bony tissue resector Bony tissue resector

1999-12-21

2001-08-28

Philogene, Pedro (Department: 3732)

Surgery

Instruments

Orthopedic instrumentation

C606S080000, C606S180000, C606S170000

Reexamination Certificate

active

06280447

ABSTRACT:

TECHNICAL FIELD
The present invention relates to systems for resecting bony tissues.
SUMMARY OF THE INVENTION
The present invention provides a cannulated resector system for resecting a variety of bony tissues. The present invention is ideally suited for resecting the facet joint articular and lateral processes, but may be used to resect any suitable bony tissue.
In an exemplary embodiment, the present cannulated resector is held at a preferred location adjacent the facet joint articular or lateral process by a guidance platform. Rotation of a support which holds a cannula therein causes the cannula to move into contact with the bony tissue to be resected, such that the bony tissue is received within an aperture on the cannula near the distal end of the cannula. A resecting burr, (which is slidably received within the cannula), can then be advanced distally to rescect the bony tissue.
In a preferred aspect, the resector comprises a rotating resecting burr which may be hollow, or have a hollowed out distal end.
The present system is ideally suited for spinal surgery, being particularly well adapted to remove portions of the facet joint such that an operating cannula can be percutaneously positioned with its distal end received within the patient's intervertebral space in a posterolateral approach.


REFERENCES:
patent: 4646738 (1987-03-01), Trott
patent: 5720760 (1998-02-01), Becker et al.
patent: 5755718 (1998-05-01), Sklar
patent: 5873886 (1999-02-01), Larsen et al.
patent: 5913867 (1999-06-01), Dion
patent: 5947990 (1999-09-01), Smith
patent: 5961532 (1999-10-01), Finley et al.
patent: 5964777 (1999-10-01), Drucker

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