Osteonics Corp.

Implex Corporation

Minnesota Mining and Manufacturing Company

Other

Scott K. Taylor

Paul Serekian

Robert G. Averill

Robert G Averill

Robert C Cohen

Alex Khowaylo

Rafail Zubok

Scott V Cron

Christopher G Sidebotham

Alfred J Zarnowski

Richard Michael Afflitto

Scott K Taylor

Matthew V Lyons

Robert Poggie

Miriam Averill

A prefabricated medical implant made of polymeric material having increased wear resistance without substantially changing its ductility and other physical properties is described. The implant is formed by a method including the steps of heating a sealed, packaged, prefabricated implant, having a reduced oxygen atmosphere, to an elevated temperature below its annealing point at a predetermined rate and held at that temperature for a predetermined time. After this time the packaged implant, while being maintained in a predetermined temperature range, is irradiated with a predetermined amount of gamma radiation. After irradiation, the implant is permitted to cool at a predetermined rate. Thermal conductive and thermal insulation containers are also provided for holding the packaged implants during the process.

Wear-resistant olefinic medical implant and thermal treatment container therefor

It has long been the practice to treat the skin of individuals to clean and soften the skin with soaps and detergents. A compound containing glycerin, alcohol, jojoba oil, aloe vera, silk extracts, glyceryl monostearate, decyl oleate, propylene glycol, isopropyl palmitate, dimethicone, magnesium ascorbyl phosphate, sodium dodecyl sulfate, methyl paraben, xanthan gum, propyl paraben, and deionized water are formed into a silk cream composition in order to clean and soften skin. A lotion form of the compound that adds natural fragrances and mineral oil is also disclosed. A method of using the skin cream and or the lotion is also disclosed.

Skin care compounds and preparation thereof

A hip prosthesis for implanting into the medullary canal of a femur, which comprises a stem for implanting into the canal of the femur, the stem having a proximal end and a distal end, the stem also including a proximal locking zone substantially adjacent the proximal end, the proximal locking zone including a proximal locking surface which circumferentially press-fits within the canal of the femur and a neck extending at an angle from the proximal end of the stem for receiving the femoral head of the prosthesis.

Prosthetic device and method of implantation

Prosthetic device

An acetabular cup prosthetic device comprised of an outer shell component and a inner bearing insert and the method of implanting the acetabular cup prosthetic within a patient. The outer surface of the shell component for the present invention acetabular cup has a plurality of regions which conform to the curvature of at least one ellipsoid. To implant the shell component, the acetabulum of a patient is spherically reamed to a size slightly smaller than that of the outer surface of the shell component. As the shell component is inserted into the spherically shaped acetabulum, the interior surface of the acetabular cavity deforms to assume a substantially ellipsoidal curvature, producing an interference fit between the rim region of the shell component and the upper peripheral rim region of the acetabulum. The remaining surface regions of the acetabulum conform substantially to the ellipsoidal shape or shapes defined by the remaining surface regions of the shell component so that surface contact is established without the development of ejection forces therebetween.

Prosthetic acetabular cup and method of implant

Prosthetic ellipsoidal acetabular cup

A spinal stabilization device positionable between neighboring vertebral bodies to provide rigid internal fixation thereof and thus stabilize a spinal column which has been rendered unstable by disease or injury. The device includes a vertebral body prosthesis dimensioned to act as a replacement for a damaged vertebral body and associated discs which have been removed. Once implanted, the prosthesis provides direct mechanical stability and preserves the original spacing between the neighboring vertebral bodies, thereby preventing nerve damage and ensuring proper tensioning of the soft tissue surrounding the implantation site. To facilitate long-lasting bony fixation, the prosthetic implant is fabricated from a rigid, tantalum foam material. The open surface porosity at the interface between the adjacent vertebral bodies and the prosthesis enhances the opportunity for axial bone growth to take place, and ultimately, for fusion of the adjacent vertebral bodies to occur. External axial grooves may also be provided to further accommodate bone ingrowth or adjunct stabilizing members.

Vertebral body prosthetic implant with slidably positionable stabilizing

Tibial component for prosthetic knee implant

A tibial component of a prosthetic knee implant has a tibial tray, a post extending axially downwardly from a generally laterally central location beneath the tibial tray, and a keel including flanges extending laterally outwardly from the post and making an angle with one another so as to be directed toward relatively denser portions of the bone of the proximal tibia, and a plurality of ribs extending axially along each flange and spaced laterally from one another along the flange for enhancing the affixation and stability of the tibial component when implanted in the proximal tibia. Apparatus for preparing the proximal tibia for the reception of the tibial component includes a tibial punch and a tower selectively located at the proximal tibia, the tower having an axially extending guide bushing for placement above the proximal tibia and a channel extending laterally into the guide bushing for enabling the tibial punch to be inserted laterally into the guide bushing and then moved axially downwardly into the proximal tibia, while guided by the guide bushing, to establish a cavity in the proximal tibia for reception of the tibial component.

Prosthetic knee tibial component with axially ribbed keel and apparatus

A procedure for contouring the wall of a femoral cavity in a femur for the reception of a femoral stem to be seated within the femoral cavity employs a femoral broach which includes cutting teeth aligned along peripherally spaced apart longitudinal rows extending along a portion of the outer surface of the blade of the broach for forming a multiplicity of alternating longitudinally extending generally parallel grooves and ribs in the wall of the cavity, at least some of the grooves being contiguous with harder portions of the bone of the femur while the ribs are comprised of softer portions of the bone so that completion of the contouring will be signalled by bottoming of the blade of the broach upon the harder portions of the bone and upon implant, the femoral stem will be seated upon the harder portions of bone while the softer portions of bone will be compressed between the femoral stem and the harder portions of bone to accomplish fixation by an interference fit. Upon completion of the contouring of the wall of the cavity, and prior to withdrawal of the blade of the femoral broach, the seated blade of the broach serves as a true gauge of the subsequent location of the femoral stem relative to the femur. A vented, interchangeable distal tip on the blade of the broach pilots the broach for precise alignment of the blade during the contouring procedure.

Prosthetic implant procedure and femoral broach therefor

An adaptor is interposed between a socket in a ceramic femoral head component and a post on a femoral stem component in the femoral stem of a prosthetic hip joint to enable the use of a taper within the socket which is steeper than the taper on the post so as to reduce hoop stresses in the ceramic femoral head component while at the same time accomplishing securement of the ceramic femoral head component upon the post of the existing femoral stem component.

Femoral head adaptor for interoperative assembly

A femoral stem surgical instrument system includes a handle component and an impact component, either one of which is selectively coupled with a femoral stem through a recess in the femoral stem, the recess providing separate facilities for the appropriate coupling of either of the components with the femoral stem, with each of the separate facilities being protected against damage when the other of the facilities is in use.

Growing community of inventors

Ringwood, NJ, United States of America

Robert G Averill