Surgery – Instruments – Orthopedic instrumentation
Patent
1991-06-21
1993-06-29
Isabella, David
Surgery
Instruments
Orthopedic instrumentation
623 17, A61F 504
Patent
active
052229548
ABSTRACT:
A spinal implant that has an adjustable rod that connects and stabilizes the vertebrae of a vertebral column. The implant has screws that are attached to the vertebrae. Each screw has a clamp with a first bore that allows the clamp to be placed over the screw. The first bore of the clamp is larger than the major diameter of the screw, so that the clamp can float about the screws. The clamps each have a second bore perpendicular to the first bore, adapted to receive and hold the rod. Integrally formed with the second bore of each clamp are a pair of flanges. When the flanges are deflected inward, the clamp "grabs" the rod. Placed on both sides of each clamp are a pair of nuts that are tightened to deflect the flanges and secure the rod to the clamp. The diameter of the second bore and rod are approximately the same so that a small deflection of the flanges produces a large clamping force on the rod.
REFERENCES:
patent: 2774350 (1956-12-01), Cleveland, Jr.
patent: 3242922 (1966-03-01), Thomas
patent: 3987499 (1976-10-01), Scharbach et al.
patent: 4620533 (1986-11-01), Mears
patent: 4636217 (1987-01-01), Ogilvie et al.
patent: 4648388 (1987-03-01), Steffee
patent: 4655199 (1987-04-01), Steffee
patent: 4696290 (1987-09-01), Steffee
patent: 4719905 (1988-01-01), Steffee
patent: 4764340 (1988-08-01), Lui et al.
patent: 4771767 (1988-09-01), Steffee
patent: 4820305 (1989-04-01), Harms et al.
patent: 4836196 (1989-06-01), Park et al.
patent: 4854304 (1989-08-01), Zielke
patent: 4854311 (1989-08-01), Steffee
patent: 4878915 (1989-11-01), Brantigan
patent: 4887595 (1989-12-01), Heinig et al.
patent: 4946458 (1990-08-01), Harms et al.
patent: 4987892 (1991-01-01), Krag et al.
patent: 5002542 (1991-03-01), Frigg
patent: 5005562 (1991-04-01), Cotrel
patent: 5011484 (1991-04-01), Breard
patent: 5015247 (1991-05-01), Michelson
patent: 5042982 (1991-08-01), Harms et al.
patent: 5047029 (1991-09-01), Aebi et al.
patent: 5084048 (1992-01-01), Jacob et al.
patent: 5084049 (1992-01-01), Asher et al.
patent: 5090854 (1992-02-01), Hafeli et al.
patent: 5092867 (1992-03-01), Harms et al.
Baker Gregg S.
Hafeli Paul B.
Artifex Ltd.
Isabella David
LandOfFree
Spinal implant system and method for installing the implant 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 implant system and method for installing the implant, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spinal implant system and method for installing the implant will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1751626