Surgery – Truss – Perineal
Patent
1990-12-07
1991-06-04
Apley, Richard J.
Surgery
Truss
Perineal
128 20, 606 99, 606 86, 606104, A61B 1756, A61B 1758, A61F 500
Patent
active
050205196
ABSTRACT:
A sagittal approximator for clamping engagement with an open back hook for urging a spinal rod into seating engagement with said hook. The sagittal approximator includes an integral fixed handle and jaw. A shiftable handle is pivotally connected to the fixed handle. A shiftable jaw is pivotally connected to the fixed handle adjacent the fixed jaw. The pivotal handle and jaw are pivotally interconnected such that as the pivotal handle is shifted, the pivotal jaw shifts accordingly. The fixed handle includes a threaded channel and longitudinal guide rib. A spinal rod engagement head is slidably carried by the fixed handle and jaw and includes a spinal rod seat which with contact with the spinal rod produces a balanced seating load on the rod. A threaded pusher rod is carried by the channel which when rotated longitudinally shifts the head relative to the fixed handle.
REFERENCES:
patent: 3477429 (1969-11-01), Sampson
patent: 4050464 (1977-09-01), Hall
patent: 4147167 (1979-04-01), Hickmann et al.
patent: 4269178 (1981-05-01), Keene
patent: 4271836 (1981-06-01), Bacal et al.
patent: 4409968 (1983-10-01), Drummond
patent: 4411259 (1983-10-01), Drummond
patent: 4422451 (1983-12-01), Kalamchi
patent: 4641636 (1987-02-01), Cotrel
patent: 4815453 (1989-03-01), Cotrel
patent: 4927425 (1990-05-01), Lozier
patent: 4932395 (1990-06-01), Mehdizadeh
Stuart, Inc. Literature-Universal Instrumentation (CD) for Spinal Surgery-Dr. Cotrel/Dr. Dubousset-1985, pp. 1-19.
Hayes S. Kyle
Lozier Antony J.
Meyers John E.
Apley Richard J.
Geringer Margaret L.
Horowitz Karen G.
Zimmer Inc.
LandOfFree
Sagittal approximator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Sagittal approximator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sagittal approximator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1019920