Patents by Inventor Robert G. Averill
Robert G. Averill has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 5882666Abstract: 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.Type: GrantFiled: November 20, 1997Date of Patent: March 16, 1999Inventors: Robert G. Averill, Miriam Averill
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Patent number: 5863295Abstract: 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.Type: GrantFiled: April 18, 1997Date of Patent: January 26, 1999Assignee: Implex CorporationInventors: Robert G. Averill, Robert C. Cohen, Rafail Zubok
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Patent number: 5702487Abstract: 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.Type: GrantFiled: April 23, 1996Date of Patent: December 30, 1997Assignee: Implex CorporationInventors: Robert G. Averill, Robert C. Cohen, Rafail Zubok
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Patent number: 5593451Abstract: 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.Type: GrantFiled: May 5, 1995Date of Patent: January 14, 1997Assignee: Implex Corp.Inventors: Robert G. Averill, Robert C. Cohen, Rafail Zubok
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Patent number: 5571201Abstract: 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.Type: GrantFiled: May 5, 1995Date of Patent: November 5, 1996Assignee: Implex CorporationInventors: Robert G. Averill, Robert C. Cohen
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Patent number: 5549698Abstract: 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.Type: GrantFiled: October 4, 1994Date of Patent: August 27, 1996Assignee: Implex Corp.Inventors: Robert G. Averill, Robert C. Cohen
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Patent number: 5443515Abstract: 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.Type: GrantFiled: January 26, 1994Date of Patent: August 22, 1995Assignee: Implex CorporationInventors: Robert C. Cohen, Robert G. Averill
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Patent number: 5443519Abstract: 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.Type: GrantFiled: April 22, 1993Date of Patent: August 22, 1995Assignee: Implex CorporationInventors: Robert G. Averill, Robert C. Cohen
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Patent number: 5356414Abstract: 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.Type: GrantFiled: November 15, 1993Date of Patent: October 18, 1994Assignee: Osteonics Corp.Inventors: Robert C. Cohen, Robert G. Averill, Scott V. Cron
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Patent number: 5282866Abstract: 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.Type: GrantFiled: February 12, 1992Date of Patent: February 1, 1994Assignee: Osteonics Corp.Inventors: Robert C. Cohen, Robert G. Averill, Scott V. Cron
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Patent number: 5089004Abstract: 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.Type: GrantFiled: January 19, 1988Date of Patent: February 18, 1992Assignee: Osteonics Corp.Inventors: Robert G. Averill, Robert C. Cohen
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Patent number: 4921500Abstract: 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.Type: GrantFiled: February 28, 1989Date of Patent: May 1, 1990Assignee: Osteonics Corp.Inventors: Robert G. Averill, Paul Serekian, Scott K. Taylor
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Patent number: 4919679Abstract: 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.Type: GrantFiled: January 31, 1989Date of Patent: April 24, 1990Assignee: Osteonics Corp.Inventors: Robert G. Averill, Alfred J. Zarnowski, Matthew V. Lyons
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Patent number: 4888023Abstract: A stem-type femoral prosthesis has a distal tip with a fixation-resistant finish on the external peripheral surface of the distal tip so that the distal tip remains uncoupled from the femur upon implant of the prosthesis and during use. The distal tip is selectively removable and replaceable to enable a choice of size combinations in the joined stem and distal tip of the prosthesis for increased ease in the fitting of both the proximal and the distal portions of an appropriate prosthesis.Type: GrantFiled: January 19, 1988Date of Patent: December 19, 1989Assignee: Osteonics Corp.Inventors: Robert G. Averill, Robert C. Cohen
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Patent number: 4798610Abstract: A prosthetic implant device for use in replacing the ball end of a biological joint, the replacement including a spherical head for insertion into a natural socket, an insert in the head, a ball-shaped member captured in the insert and having a neck and a stem for mounting the ball-shaped member on the end of the biological member on which the ball is being replaced, and a radially-expansible ring for capturing the ball-shaped member within the insert the ring having a downwardly and inwardly sloping outer wall and seated in a recess in the insert, the recess having upper and lower end walls for defining upper and lower limits of axial movement of the ring within the recess to permit selective removal of the ball-shaped member from the insert and to prevent inadvertent disengagement of the ball-shaped member from the insert.Type: GrantFiled: September 29, 1982Date of Patent: January 17, 1989Assignee: Osteonics Corp.Inventors: Robert G. Averill, Alex Khowaylo
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Patent number: 4770660Abstract: A stem-type femoral prosthesis has a calcar collar selectively installed on the stem of the prosthesis or removed from the stem interoperatively by sliding the collar in transverse directions between the medial and lateral sides of the stem, at the proximal end of the stem, to facilitate seating of the stem without the collar during implant and to enable subsequent removal of stem by first releasing the collar from the stem to gain access to the affixed surfaces of the stem beneath the collar.Type: GrantFiled: January 20, 1987Date of Patent: September 13, 1988Assignee: Osteonics Corp.Inventor: Robert G. Averill
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Patent number: 4719908Abstract: Method and apparatus for preparing the bone at a joint for the implant of a component part of a prosthetic device include a contouring guide placed on the bone at a predetermined site and having a guide rail for delineating a path of travel to which a contouring cutter is confined while translated along the contouring guide for removing bone along a surface of predetermined area and contour to establish an accurately defined seating area for the component part with minimal intrusion into the joint.Type: GrantFiled: August 15, 1986Date of Patent: January 19, 1988Assignee: Osteonics Corp.Inventors: Robert G. Averill, Christopher G. Sidebotham
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Patent number: 4714472Abstract: A knee prosthesis in which articular surface areas of the engaged femoral and tibial components of the prosthesis include surface profile contours lying in a common arcuate profile defined by a medial-lateral radius having an origin lying on the mechanical axis passing through the femoral head of the corresponding hip joint such that limited misalignment of the femoral and tibial components by virtue of angular deviation from the mechanical axis resulting from relative displacement in a medial-lateral direction is tolerated to accommodate the misalignment while maintaining area engagement between the engaged surfaces.Type: GrantFiled: January 20, 1987Date of Patent: December 22, 1987Assignee: Osteonics Corp.Inventors: Robert G. Averill, Alex Khowaylo, Christopher G. Sidebotham
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Patent number: D296714Type: GrantFiled: January 23, 1986Date of Patent: July 12, 1988Assignee: Osteonics Corp.Inventors: Robert G. Averill, Alex Khowaylo
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Patent number: D358647Type: GrantFiled: February 12, 1992Date of Patent: May 23, 1995Assignee: Osteonics Corp.Inventors: Robert C. Cohen, Robert G. Averill, Scott V. Cron