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Assignee: Zimmer, Inc.


Location: Warsaw, IN
No. of patents: 312

              8  
NumberTitleIssue Date
4951977Arthroscopic sheath with quick coupling socket
A tubular arthroscopic sheath having improved irrigating fluid flow characteristics and having a quick coupling socket adapted to quickly connect to and disconnect from an associated arthroscopic tool provided with a mateable, generally cylindrical plug m...
08/28/1990
4927425Surgical rod pusher instrument
A surgical rod pusher instrument for application of a force against a rod. The instrument has a distal tip which includes a plurality of rod locator recesses, each having a different directional orientation. The rod can be located in the desired recess fo...
05/22/1990
4921493Rasp tool
A rasp tool comprises a handle and a cutter. The rasp tool carries a releasable locking assembly to couple the cutter to the handle. The releasable locking assembly is compactly arranged at the distal end of the handle and the mating proximal end of the c...
05/01/1990
4917699Prosthetic ligament
A prosthetic ligament is constructed from a three-dimensional braider. The prosthetic ligament includes an eyelet at a first end and a pigtail at a second end. The pigtail is removed during surgery so that the remaining implantable prosthetic ligament is ...
04/17/1990
4917700Prosthetic ligament
A prosthetic ligament includes a braided jacket with an unbraided core which is formed with a portion of the fibers of the braided jacket. This portion is isolated from the remaining braided jacket over a predetermined length of the prosthetic ligament....
04/17/1990
4902297Composite implant prosthesis
A composite implant prosthesis comprising a core constructed from a plurality of carbon fibers, a first casing formed from a braided sheath of carbon fibers and a second casing enclosing the core and first casing to define an outer surface contour for the...
02/20/1990
4863475Implant and method for production thereof
An implantable prosthesis including a base member, such as the stem of a hip joint prosthesis, having a porous region on its surface, and the region of porosity being coated with a bioabsorbable material, such as ଱-tricalcium phosphate, which enhanc...
09/05/1989
4813963Femoral component for a hip prosthesis
A femoral component for a hip prosthesis includes a proximal end shaped in an anatomic manner to form asymmetrical sides. In particular, a lateral side forms an acute angle with an anterior side and a medial side forms an arcuate surface....
03/21/1989
4795472Prosthesis with enhanced surface finish
An orthopaedic prosthesis for implantation with a bone cement composition, the prosthesis including a polymer coating and a textured surface underneath at least a portion of the polymer coating. The textured surface, which is visible to the eye without ma...
01/03/1989
4795468Mechanism and method for locking a bearing insert to the base of a prosthetic implant
A mechanism and method for locking or securing a bearing insert to the base of a prosthetic implant. The prosthetic implant is for replacement of a portion of natural bone at a point of articulation. The implant includes a locking mechanism which enables ...
01/03/1989
4770658Joint prosthesis
A joint prosthesis is provided wherein an outer shell includes a liner to define an articulating interface with a head of a hip stem. A lock ring cooperates with the outer shell and the liner to oppose withdrawal of the head from the liner, and the lock r...
09/13/1988
4759352Instrument for inserting a locking pin
An instrument for inserting a locking pin in a hip screw assembly, includes a handle with a cavity and a rod extends outwardly from the cavity to carry the locking pin and provide for alignment during insertion of the locking pin in a barrel of a tube pla...
07/26/1988
4756307Nail device
A nail device includes a plurality of segments fastened together by a resorbable bioadhesive such that the plurality of segments are gradually disassociated after the nail device is implanted into a bone. The disassociated segments exhibit less bending an...
07/12/1988
4744793Prosthetic ligament connection assembly
A prosthetic ligament connection assembly includes a plug adapted to fit within an opening in a bone so that the prosthetic ligament in the opening will be secured to the bone via a uniform interface therebetween....
05/17/1988
4718912Femoral component and the method of constructing the same
A femoral component for a hip prosthesis includes a stem with a porous surface or the like to enhance bone fixation. The porous surface is applied to the stem in a predetermined manner to accommodate stress lines for the stem and generate a curvilinear in...
01/12/1988
4716894Acetabular cup inserting instrument
An acetabular cup inserting instrument comprises a first handle and a second handle extending therefrom. The second handle is selectively rotatable about the first handle and selectively lockable in a desired position with respect to the first handle....
01/05/1988
4714470Grooved prosthetic implant
A prosthetic implant including a plurality of discrete grooves disposed in the proximal end of the implant stem. The grooves are each segments of curves generated from radii having a center of curvature offset from the implant stem in a generally lateral ...
12/22/1987
4660755Method for constructing a surgical implant
A method for constructing a surgical implant provides a porous layer that is metallurgically bonded to a substrate. An electrode passes current through the porous layer and through the substrate while also controlling the compaction of the porous layer re...
04/28/1987
4640271Bone screw
A bone screw comprising a shaft having a first set of leading threads and a second set of trailing threads spaced apart from the first set of threads by an unthreaded central portion. The second set of threads are carried externally on a sleeve having a s...
02/03/1987
4612920Compression hip screw
A compression hip screw comprises a plate with a barrel, a lag screw adapted for fixation to a femoral head, a compression screw engageable with the lag screw to retain the plate and barrel attached with the femur and a locking pin to oppose rotation betw...
09/23/1986
4587964Rasp tool
A rasp tool comprises a handle and a cutter. The handle carries a releasable locking assembly to couple the cutter to the handle and the releasable locking assembly is compactly arranged at one end of the handle via a transversely extending flange which a...
05/13/1986
4573458Bone fixation plate
A bone plate for bridging two portions of a broken bone which can be formed to fit and retain many irregular surfaces and yet retain optimum strength. The bone plate is particularly adaptable for fracture in the pelvic and acetabular area, although the pl...
03/04/1986
4566138Prosthetic device with spacers
A prosthetic device adapted to be secured to a supporting bone by a thickness of acrylic bone cement. The prosthetic device has an outer surface which includes a plurality of spacers projecting therefrom. The spacers are made of an acrylic material, such ...
01/28/1986
4549538Pin inserter sheath
A pin inserter sheath which consists of a plurality of telescoping tubular portions. The sheath is adapted for attachment to a drilling device. A channel extends throughout the elongated telescoping tubular portion which is substantially adapted to the sh...
10/29/1985
4517969Prosthetic gauge
A prosthetic gauge which is used for evaluating the fit of a prosthetic device against a receiving bone or cartilage surface. The gauge includes a portion for gripping and a contact portion extending from the gripping portion. The surface of the contact p...
05/21/1985
4501031Metal and plastic composite tibial component for knee joint
A prosthetic joint component which is comprised of a metal retainer and a plastic bearing portion which is molded integrally onto the top surface of the metal retainer. The metal retainer includes a plurality of notches spaced apart from each other around...
02/26/1985
4491132Sheath and retractable surgical tool combination
A surgical instrument comprising a scalpel handle with a separate protective sheath for use in closed surgical procedures, such as arthroscopy. The protective sheath provides for atraumatic insertion of a scalpel blade into the body and to the actual oper...
01/01/1985
4479271Prosthetic device adapted to promote bone/tissue ingrowth
This invention relates generally to the art of orthopaedic prostheses, and more particularly to the type of prosthesis which is adapted to promote the ingrowth of bone and/or tissue into the portion of the prosthesis surface in contact with the bone surfa...
10/30/1984
4474046Rod bender
An instrument for bending and/or contouring a rod. The device has a fulcrum for bending which has a plurality of separate bending surfaces, each of which can be rotated into operating position to accommodate different sizes of rods or to provide for diffe...
10/02/1984
4373518Method of drilling living bone
This invention relates to a method of using a half-drill for drilling holes in living bone for orthopaedic operations. The invention also relates to a method of using a half-drill tip on skeletal bone pin for drilling holes in living bone and subsequently...
02/15/1983
4341691Low viscosity bone cement
An acrylic cement-like substance which permits seating and securing of a prosthesis into living bone which comprises a mixture of a liquid monomer component and a polymer powder component such that upon mixing the two components, a cement which maintains ...
07/27/1982
4324331Packaging for surgical implements
The present invention relates to a storage container for pre-sterilized surgical implements. The container is comprised of a bottom assembly containing at least one cavity for receiving a surgical implement such as a drill bit, pin or wire and a lid porti...
04/13/1982
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