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Class 623/23.35 - Having particular geometry


Subclass of Class 623 - Prosthesis (i.e., artificial body members), parts thereof, or aids and accessories therefor
Definition: Subject matter wherein the artificial femur stem or a
No. of patents: 60
Last issue date: 12/28/2010


1    
NumberTitleIssue Date
7857859Femur component for a hip joint prosthesis
The specified implant for use as a femur component in a hip joint prosthesis comprises a shaft, being intended for the implantation in a cavity of a proximal femur, a head section, for fastening a femoral head prosthesis and a femoral neck section, being arranged be...
12/28/2010
7842096Hip stem prosthesis
A hip prosthesis for insertion into a femur. In one exemplary embodiment, the hip prosthesis includes a stem having a proximal end, a distal end, and a longitudinal axis. This stem may include anterior and posterior locking surfaces which diverge away from the stem....
11/30/2010
7641699Femoral head calcar loading prosthesis
Provided is a novel hip replacement implant system that includes a ball assembly having a ball trunnion, the ball assembly being configured as a replacement for the head of the femur and capable of being secured by the ball assembly trunnion to a calcar implant elem...
01/05/2010
7611541Femoral implant for hip arthroplasty
Novel femoral implants for use in hip arthroplasty are described and illustrated. The femoral implant comprise a stem and neck portion, with the neck portion having a novel configuration that provides for improved range in motion for the prosthesis without compromis...
11/03/2009
7497875Flat shaft of a hip-joint prosthesis for anchoring in the femur
A flat shaft of a hip-joint prosthesis for anchoring in a femur. The shaft expands on all sides towards a proximal end from a distal end of the shaft and medially merges with a curved section that is continuous with a prosthesis neck. The shaft is additionally expan...
03/03/2009
7494510Leaflike shaft of a hip-joint prosthesis for anchoring in the femur
The present invention relates in certain embodiments to components of a hip-joint prosthesis. More particularly, embodiments of the invention relate to a leaf-like femoral shaft for use as part of a hip-joint prosthesis, and instruments (e.g., a rasp) and methods fo...
02/24/2009
7494509Method and apparatus for providing a short-stemmed hip prosthesis
A method of implanting at least a stem member of a femoral insert into an intramedullary canal of a femur. The method includes making an anterior incision for accessing the intramedullary canal, and inserting a stem member of the femoral insert into the intramedulla...
02/24/2009
7374576Polyaxial orthopedic fastening apparatus with independent locking modes
Implants and methods are presented for surgically repairing a hip joint with a proximal femoral prosthesis that comprises femoral head component and a femoral stem component. The femoral stem component comprising a neck portion, a flange portion, a transitional body...
05/20/2008
7311735Femoral stem for artificial coxal articulation and method for processing neck portion thereof
Disclosed are a femoral stem for artificial coxal articulation, in which portions of the femoral stem interfering with and contacting an insertion in the joint movement of the femoral stem are removed from the femoral stem so as to maximize the range of the joint mo...
12/25/2007
7291176System for establishing the orientation of a modular implant
This invention provides apparatus and a method for assembling a modular hip implant where the desired orientation of the neck component is uniquely determined during the trialing phase of the operation, and that same desired orientation is accurately reproduced duri...
11/06/2007
7273499Modular trial mechanism
A prosthetic trial for a joint prosthesis includes a stem having a proximal section and a distal section for implantation in a bone. A body includes a channel receiving at least the proximal section of the stem. A locking mechanism is at least partially disposed wit...
09/25/2007
7175668Leaflike shaft of a hip-joint prosthesis for anchoring in the femur
Leaflike shaft (1) of a hip-joint prosthesis for anchoring in the femur, according to a towards a distal end (5), with a femur-anchoring section (1a, . . . 1i) having a long axis (A) and with a prosthesis neck (2), wh...
02/13/2007
7122056Self-locking modular prosthesis
A modular prosthesis is disclosed that includes a neck member having a tapered neck body. The modular prosthesis further includes a sleeve component having a first elongated tapered bore. The tapered neck body is received within the first elongated tapered bore so a...
10/17/2006
7097664Modular femoral stem component for a hip joint prosthesis
A prosthetic femoral stem component comprising a body element, a neck element and a stem element, with the body element, neck element and stem element being secured to one another with a modular connection, wherein the modular connection comprises a taper junction a...
08/29/2006
7074224Modular tapered reamer for bone preparation and associated method
A kit (400) for use in performing joint arthroplasty is provided. The kit (400) includes a trial (12) and a reamer (2). The reamer (2) is for preparing a cavity (4) in the intramedullary canal (8) of a long bone (8...
07/11/2006
7060102Femoral implant for hip arthroplasty
Novel femoral implants for use in hip arthroplasty are described and illustrated. The femoral implant comprise a stem and neck portion, with the neck portion having a novel configuration that provides for improved range in motion for the prosthesis without compromis...
06/13/2006
7044975Joint prostheses and components thereof
Modular joint prostheses and components thereof are disclosed. In an embodiment, a joint prosthesis may include a head member, a neck member, and a stem member. ...
05/16/2006
7022141Alignment device for modular implants and method
An instrument (200) for at least one of replicating and measuring the angular orientation of a first component (54) of a prosthesis (51) to a second component (52) of the prosthesis (51) for use in joint arthroplasty. The instrumen...
04/04/2006
7004973Shaft for anchoring a hip joint prosthesis in the femur
A profiled shaft for anchoring a hip-joint prosthesis in the femur is disclosed, with a shaft section and a fixation section that is formed at the end of the shaft section and that serves for the fixation of a spherical joint head, wherein the shaft section on the l...
02/28/2006
6994731Prosthetic implant
A highly polished femoral implant (1) has a proximal neck portion (10), a distal tip portion (30), and an elongate stem portion (20) that extends from the neck portion to the tip portion. The stem portion (20) has a proximal or met...
02/07/2006
6977000Modular trial neck segment
A modular trial neck segment is utilized for trialing a hip prosthesis for a total hip arthroplasty. The modular trial neck segment is preferably, but not necessarily, utilized for trialing a hip prosthesis for a total hip arthroplasty. The trial neck segment includ...
12/20/2005
6808539Leaflike shaft of a hip-joint prosthesis for anchoring in the femur
Leaflike shaft (1) of a hip-joint prosthesis for anchoring in the femur, according to a towards a distal end (5) [sic], with a femur-anchoring section (1a, . . . 1i) having a long axis (A) and with a prosthesis neck (2
10/26/2004
6723130Neck-preserving-stem NPS
The present invention essentially relates to a hip joint endoprosthesis stem for cement-free or cemented anchoring in bones that is anchored in the femural neck and in the proximal metaphysis and preserves the internal spongiosa and compact structures that reinforce...
04/20/2004
6613094Shaft for anchoring a hip joint prosthesis in the femur
A profiled shaft for anchoring a hip-joint prosthesis in the femur is disclosed, with a shaft section and a fixation section that is formed at the end of the shaft section and that serves for the fixation of a spherical joint head, wherein the shaft secti...
09/02/2003
6540788Leaf-shaped shaft of a hip joint prosthesis for anchoring in the femur
Leaflike shaft (1) of a hip-joint prosthesis for anchoring in the femur, according to a towards a distal end (5) [sic], with a femur-anchoring section (1a, . . . 1i) having a long axis (A) and with a prosthesis neck (2), wherein the femur-anchoring sectio...
04/01/2003
6413280Hip joint prosthesis
A hip joint prosthesis comprising a femoral stem, adapted for implant into the medullary canal of a human leg femur, said stem having a superior neck portion whose longitudinal axis is arcuate, forming concave and convex portions thereof, and terminating ...
07/02/2002
6383228Femoral hip-joint prosthesis with a logarithmically extending curvature
A femoral hip-joint prosthesis having a tapered stem for implantation by cement. The prosthesis has a collarless shoulder at a proximal end and a stem extending therefrom to a distal end in tapered fashion. A logarithmically extending curvature of anterio...
05/07/2002
6254640Shaft prosthesis and set
The shaft prosthesis (1) has a distal section (2) with a substantially circular cross-section and a proximal section (3) adjoining this distal section (2). A rib (4) is located at the lateral side of the prosthesis and protrudes in the ventral direction. ...
07/03/2001
6200350Anti-impingement femoral prostheses
A proximal femoral prosthesis minimizes impingement, thereby affording an enhanced range of motion as compared to existing devices. The central portion of the neck of a prosthesis according to the invention is oriented distally relative to a straight line...
03/13/2001
6193760Thigh prosthesis
A prosthesis element for a thigh prosthesis has a shaft which can be inserted into the upper end of a femur. The upper end of the shaft carries an inclined transverse support plate and a support post onto which a condyle can be fitted. The shaft has an up...
02/27/2001
6102957Asymmetric hip stem
An improved asymmetric femoral hip stem component for use in cementless hip replacement procedures is described. The stem comprises a proximal region having a novel three-dimensional configuration to allow for better fit and stability of the stem within t...
08/15/2000
5906644Adjustable modular orthopedic implant
An implantable modular orthopedic prosthesis, preferably for hip, knee or shoulder arthroplasty, is disclosed which consists of three components. A first component has an elongated stem with a free end, configured to be situated within the intramedullary ...
05/25/1999
5888210Stem of a femoral component of a hip joint endoprosthesis
The invention relates to a femur stem (10) of a hip joint endoprosthesis. The cross-section of the femur stem twists from its proximal to its distal region in such a way that the transverse-oval cross-section in the proximal region turns towards the dista...
03/30/1999
5888243Hybrid intrastromal corneal ring
This invention is an intrastromal corneal ring housing comprising at least one outer layer of a physiologically compatible polymer having a low modulus of elasticity, which polymer may be hydratable and may be hydrophilic. The inner portion of the hybird ...
03/30/1999
5888245Rotational alignment guide for a prosthetic hip stem implant and method of using same
The invention is directed to an alignment device for aligning a prosthetic hip stem implant with an opening formed in a proximal femur. The hip stem implant includes a landmark and the proximal femur includes a visual alignment mark. The alignment device ...
03/30/1999
5860969Version adjustment instrument for modular femoral components and method of using same
A version adjustment instrument is utilized with modular femoral components, including a modular stem component having a coronal slot and/or a bowed portion and a modular body component attachable to the modular stem component in a substantially fixed ori...
01/19/1999
5776204Asymmetric hip stem
An improved asymmetric femoral hip stem component for use in cementless hip replacement procedures is described. The stem comprises a proximal region having a novel three-dimensional configuration to allow for better fit and stability of the stem within t...
07/07/1998
5755809Femoral head core channel filling prothesis
A prosthesis for interfacing with an internal region of a bone of a given structure and function such as a femoral head and/or neck, wherein the internal region of the bone can be an avascular necrotic region. The prosthesis comprises porous filling membe...
05/26/1998
5755811Prosthetic implant with fins
The present invention provides a prosthetic implant 1 which includes a stem 2 having two lateral fins 20. The lateral fins 20 extend outwardly from the lateral side 6 of the stem 2, such that the lateral face 21 of each fin 20 is flush with the lateral si...
05/26/1998
5725592Modular prosthesis having neck component connected to stem component through cavity in body component
The invention provides a modular three-component assembly for replacing a portion of a patient's femur or humerus. A neck component attaches directly to a stem component that inserts into the bone, and a body component that also inserts into the bone is a...
03/10/1998
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