Spinal anulus cutter

Details Spinal anulus cutter Spinal anulus cutter

1994-10-17

1997-07-22

Lewis, William

Surgery

Instruments

Cutting, puncturing or piercing

606184, A61B 1732

Patent

active

056499450

ABSTRACT:
A spinal anulus cutter for cutting a multisided flap in an encapsulating ligament, such as an anulus of a human intervertebral disc, to provide access to an interior space or material surrounded by the ligament. The spinal anulus cutter is characterized by a knife blade comprised of a plurality of walls which are connected together to define a closed side and an open side. Further, a cutting edge is formed at the forward edge of the walls which is configured to cut the multisided flap in the ligament when an axial force is transmitted to the knife blade in a direction towards the cutting edge. The flap will conform in shape and size to the form of the knife blade, whereby the open side of the knife blade will not cut the ligamentary tissue.

REFERENCES:
patent: 959450 (1910-05-01), Bridgeman
patent: 1551815 (1925-09-01), Ferguson
patent: 1573681 (1926-02-01), Daireaux
patent: 4150675 (1979-04-01), Comparetto
patent: 5056223 (1991-10-01), Buck et al.
patent: 5078724 (1992-01-01), Takase
patent: 5186178 (1993-02-01), Yeh et al.
patent: 5306309 (1994-04-01), Wagner et al.

Affiliated with

Also associated with

Rating

Spinal anulus cutter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Spinal anulus cutter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spinal anulus cutter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1557325