Depuy Synthes Products, Inc.

Depuy Products, Inc.

Andrew M Jacobs

Herbert Eugene Schwartz

Anthony D Zannis

Prasanna Malaviya

Danny E McAdams

Jeffrey A McAnelly

Rodney E Satterthwaite

Kyle B Thomas

Mario Bertazzoni

John W Kemppainen

Rhonda B Clarke

Carolyn K Day

Jack Farr, Ii

Charles Wesley Jaggers

Keith M McGrath

John A Bonitati

Thomas M Vanasse

Brian A Magee

Gordon R Young

Randall L Holcomb

Nikhil Kulkarni

John Kempainen

A femoral prosthesis system for an orthopaedic hip implant and method of use is disclosed. The prosthesis system includes a femoral stem component that includes a core body and a casing that encases the core body. The casing can be additively manufactured such that the core body defines a predetermined orientation in the core body among a plurality of permissible predetermined orientations. The femoral stem component can further include a neck and a trunnion that extends from the neck. The neck can extend out with respect to the core body at a predetermined angle within a range of permissible predetermined angles.

Patient specific femoral prosthesis

Surgical instruments for use in mapping tissue defects include telescoping rulers and tubes. One of the instruments has a pointed anchoring tip for piercing tissue near the site of the defect. Another instrument has a hook for catching an anatomical landmark. Measuring portions of the rulers of both instruments include distance indicia so that a coordinate system can be established for mapping the location of the defect or of an implant at the defect site. The coordinate system can be re-established at a later time using the same fixation point for the anchoring tip and the same landmark for the hook to evaluate the clinical effects of the treatment selected. The method of using the instrument set is also described.

Coordinate instrument set

An instrument for measuring the medullary canal of a long bone in order to determine the proper size for a stem centralizer is provided. The instrument includes an elongated central portion defining opposed first and second ends and a contact portion. The contact portion extends from the first end or the second end of the elongated central portion. The contact portion has a contact area for contact with the medullary canal and defines a relief area for providing clearance between the instrument and the medullary canal.

Canal sizer and associated method

Surgical instruments for use in sizing tissue defects and selecting an appropriate implant for the defect include sizing templates. The sizing templates are sized and shaped to correspond to the size and shape of the implants. The sizing templates may be retractable into a tube for use in arthroscopic surgery. The retractable sizing templates are resilient to allow them to be retracted into a small diameter tube, and to expand on release from the tube to the desired size and shape. The method of using the instrument set is also described.

Implant system with sizing templates

A surgical instrument has a main shaft underlying a slide member. The slide member is movable in a proximal-distal direction. The distal end of the slide member has an open position and a closed position. The closed position is spaced from the open position in the proximal-distal direction. There is a gap between the distal end of the slide member and the distal end of the main shaft when the instrument is in the open position. The gap is smaller when the instrument is in the closed position. An implant can be received in the gap and delivered to a damaged tissue site using the instrument. An implant protector can be used when delivering the implant with the instrument. A pivotable implant cover can be used to protect the implant instead of the slide member.

Instrument for delivery of implant

A surgical instrument stabilizes an implant as the implant is secured to native tissue at a damaged tissue site such as in an intra-articular space. The instrument has a proximal end portion, a distal end portion and an intermediate portion. The distal end portion has a template for guiding an attachment mechanism into the implant and the adjacent native tissue. The distal end portion can also have barbs to engage the implant to enhance stabilization of the implant. Several instruments can be provided in a surgical kit with different lengths and shapes of distal end portions. A surgical kit could also contain modular distal end portions of varying sizes and shapes. A surgical method utilizing the stabilizing instrument is also disclosed.

Implant stabilizing instrument, kit and method

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Fort Wayne, IN, United States of America

Andrew M Jacobs