Surgery – Instruments – Orthopedic instrumentation
Patent
1997-09-11
1998-12-15
Tucker, Guy V.
Surgery
Instruments
Orthopedic instrumentation
A61B 1756
Patent
active
058490159
ABSTRACT:
An orthopaedic stem inserter grips and inserts a prosthetic implant having a stem into a prepared opening in a bone. A handle includes a housing, a rotating knob connected to a first end of the housing, and an elongate element connected to the knob and extending through the housing to a second end of the housing. A body includes a pair of jaws, with each jaw being configured to grip the implant. One of the jaws is movable in directions toward and away from the other jaw. A geared rack is connected with the movable jaw. A first gear is connected with the rack, and a second gear is connected with the elongate element and selectively enmeshes with the first gear. A quick release lever is pivotally attached to the handle and has an engaging portion which engages the second gear. The quick release lever moves the second gear toward and away from the first gear upon pivotal movement relative to the handle and thereby respectively enmeshes and demeshes the first and second gears. A ratchet device allows movement of the movable jaw in the direction toward the other jaw upon application of an external force to the movable jaw.
REFERENCES:
patent: 3857389 (1974-12-01), Amstutz
patent: 4676798 (1987-06-01), Noiles
patent: 4686971 (1987-08-01), Harris et al.
patent: 4993410 (1991-02-01), Kimsey
patent: 5064427 (1991-11-01), Burkinshaw
patent: 5133765 (1992-07-01), Cuilleron
patent: 5391170 (1995-02-01), McGuire et al.
patent: 5443471 (1995-08-01), Swajger
patent: 5476466 (1995-12-01), Barrette et al.
patent: 5499986 (1996-03-01), Dimarco
patent: 5514136 (1996-05-01), Richelsoph
Linvatec Concept Arthroscopy--Paramax.TM. Angled Driver-catalog p. 79-1992.
Osteonics-C-Taper Head Dissassembly--Head Disassembly Instrument-1992.
Smith & Nephew Richards--Modular Hip System-Femoral Head Removal Device-1991.
Zimmer, Inc.--Humeral Stem Driver-Fenlin Shoulder Surgical Technique, p. 2-1989.
Zimmer, Inc.--Humeral Stem Inserter--Fenlin Shoulder Surgical Technique, p. 3-c1994-Lit No. 97-4065-102 Rev 2.
Zimmer, Inc.--Fenlin Total Shoulder brochure-c1993-Literature No. 97-4065-101, Rev. 3.
Zimmer, Inc.--Femoral Pros. Holder and Femoral Neck Punch-catalog pp. A13, A41-Jun. 1978.
Zimmer, Inc.--Inserting and Disassembly Instruments-Zimmer catalog p. A87-1991.
Haywood Bill H.
Krueger David J.
McBroom Billie W.
Smith William C.
Steffensmeier Scott J.
Bristol--Myers Squibb Company
Geringer Margaret L.
Tucker Guy V.
LandOfFree
Orthopaedic stem inserter with quick release lever and ratchet does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Orthopaedic stem inserter with quick release lever and ratchet, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Orthopaedic stem inserter with quick release lever and ratchet will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1453510