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Class 623/22.43 - Stem includes protruding means projecting into a bore in joint head


Subclass of Class 623 - Prosthesis (i.e., artificial body members), parts thereof, or aids and accessories therefor
Definition: Subject matter wherein the femur stem includes a projection
No. of patents: 29
Last issue date: 10/11/2011


NumberTitleIssue Date
8034116Prosthetic implant and assembly method
An orthopedic prosthetic implant comprises a metal alloy stem element (13, 63, 113), which has one end portion (19, 69, 119) constructed to reside in the medullary cavity of a bone and an integral connector (23, 73, 123) at the opposite end to w...
10/11/2011
7572297Tapered joint prosthesis
A joint prosthesis may include a modular head member, a modular body member, and a stem member. The stem member may be so tapered as to be engageable by taper press-fit into the medullary cavity of a bone. The body member may be engageable in the stem member by fric...
08/11/2009
7238208Large taper modular shoulder prosthesis
A kit for assembly of a modular joint prosthesis (10) includes at least two shank/body elements (22/20) sized for insertion into the shank of the bone and at least two head members (48) sized to replace one bearing surface of the joint. Each sha...
07/03/2007
7211113Hip prosthesis
An endoprosthesis utilizes a biomechanical structure based on the lever model of first degree. Contrary to the widespread practice, the inventive structure has a stem placed inside the femur bone, which is not rigidly attached to this bone. Accordingly, the bone, fo...
05/01/2007
7192448Arthroplasty devices with resorbable component
Arthroplasty devices having improved bone in growth to provide a more secure connection within the body. Different embodiments disclosed include devices having threaded intramedullary components, devices configured to receive bone growth promoting substances, device...
03/20/2007
7144427Apparatus and method for advancing synovial fluid in a prosthetic joint
A prosthetic orthopaedic head has a fluid chamber defined therein. A fluid filter is positioned in the fluid chamber. In response to a load being exerted on the prosthetic head, synovial fluid is advanced through a filter thereby removing debris from the synovial fl...
12/05/2006
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
7051417Method for forming an orthopedic implant surface configuration
The present invention is a specialized orthopedic implant having an exterior surface for engaging bone. The surface comprises arrayed projections having at least one forward facing facet directed at least in part toward the leading end of the implant and at least on...
05/30/2006
6969406Prosthetic element comprising two components and process for assembling such a prosthetic element
A prosthetic element comprising two principal components which are assembled together and immobilized with respect to each other by a screw which may be selectively threaded into at least one tapping in at least one of the principal components. The screw comprises a...
11/29/2005
6840959Pelvic prosthesis plus methods and tools for implantation
A pelvic prosthesis includes a ball socket and two substantially parallel fanned wings extending upward from the socket. A stabilizing hump is located directly above the socket and extends between and substantially perpendicular to the fanned wings. Each wing is pro...
01/11/2005
5865850Coated load bearing surface for a prosthetic joint
A prosthetic hip joint includes a ceramic hip head having a bore which defines a surface, wherein the bore surface has a layer of malleable material disposed on at least a portion thereof. The surface of the bore includes surface imperfections in the form...
02/02/1999
5800554Endoprosthesis for an artificial hip-joint
The present invention concerns an endoprosthesis for an artificial hip-joint, the endoprosthesis comprising a shank (1) having an adapter (2) at one of its ends. A ballhead (4) is fitted with a recess (6) detachably engaged by the adapter (2) while retain...
09/01/1998
5800560Hip prosthesis with adjustable head
The invention relates to a hip joint prosthesis and its use in hip joint surgery. Essentially, the construction of the prosthesis is a laterally open hollow body whose cross-section (31) is horseshoe-shaped. This allows ideal adaption to the lines of load...
09/01/1998
5593447Minimal contact prosthesis
A prosthetic device has first and second components engaging one another in a manner providing for minimal contact bearing surface area to reduce torque during relative motion of said first and second components. In an embodiment of the invention, the fir...
01/14/1997
5580352Distal shaft with fast and slow screw threads
A femoral prosthesis adapted for insertion into the medullary cavity of a femur. The prosthesis including a distal shaft, a neck portion detachable from the distal shaft and a joint head detachable from the neck portion. The distal shaft having two spaced...
12/03/1996
5549703Orthopedic prosthesis apparatus with improved taper locking connection
An orthopedic joint prosthesis includes a prosthesis body with a pair of connectable components each having a connecting portion with a generally frustroconically shaped surface. One of the components has a projecting connecting portion and the other comp...
08/27/1996
5480451Angularly adjustable offset spherical head endoprosthesis
A spherical head endoprosthesis has a spherical head and a base piece. Between the base piece and the spherical head is a conical interference fit connection, wherein the spherical head has a conical bore and the base piece has a conical pin. The axis of ...
01/02/1996
5413610Artificial hip joint
An artificial hip joint of the type wherein a metal stem is fitted into the tapered hall of a ceramic stem head via a tapered cone in the stem, the hip joint being characterized in that the tapered stem engages the tapered hall in the deeper portion of th...
05/09/1995
5181929Femoral prosthesis employing a small ceramic ball
The disclosure relates to a femoral prosthesis consisting of a metal rod having a male frustoconical end portion and a femoral head, or ceramic ball, having a frustoconical blind recess, assembled by means of a conical sleeve fitment. The ceramic ball is ...
01/26/1993
5037441Rotule pour prothese
The joint of the present invention is characterized essentially by the fact that it includes a male portion and a female portion, the male portion comprising a ball 13 and means 9, 10, 11, . . . for fixing the ball on a connection peg 4, and the female po...
08/06/1991
4990161Implant with resorbable stem
This invention relates to a biodegradable anchor for a permanent implant of a bone joint, e.g. hip, shoulder, knee or finger. The biodegradable anchor is an elongated member which has an exterior surface which tightly engages a cavity in the bone and is s...
02/05/1991
4964869Assembly of a ceramic head on a metal rod for a hip prosthesis
An assembly of a ceramic head fixed to a rod, which assembly is a component of a hip prosthesis that has improved distribution of the stresses transferred from the rod to the ceramic head. The ceramic head includes a blind recess, generally in the shape o...
10/23/1990
4908034Endoprosthetic bone joint components
An endoprosthetic bone component is produced from parts respectively having a projection and cavity engaged in a mutual clearance fit, and a third part of plastics material located in the space of such fit, the space and third part being dimensioned to in...
03/13/1990
4705520Implant
Implant provided with a conical connection and means for releasing an element placed on the cone surface, particularly a joint ball, wherein the cone is provided with a longitudinal bore which opens into a transversely oriented opening, extends laterally ...
11/10/1987
4551863Femoral component and method
An implant component having a cement stem, a shaft extending outwardly of the proximal end of the stem and a head fitted on the shaft including a bone joint ball and bone ingrowth material on the neck of the head. The component is secured to the proximal ...
11/12/1985
4318190Metal-infibulum ceramic-head endoprosthesis
A hipbone endoprosthesis comprises a metal-infibulum insertable into the femur medullar channel and a ceramic material spherical head associable with a portion of the infibulum provided for projecting from the medullar channel. The projecting portion is p...
03/09/1982
4225981Endo prothesis with a metal-ceramic union
In a bone joint endoprosthesis, the spigot of the metal shank is externally threaded to mate with a thread inside the ceramic head of the prosthesis; the thread on the spigot has greater depth in the radial direction, with flat sides, and the depth of the...
10/07/1980
4198711Joint endoprosthesis
A joint endoprosthesis including a pivot body with a radially extending hole; a pin press fit in the hole; a recess extending into the pin from its end in the hole; wedging means for spreading the pin from its end in the hole; wedging means for spreading ...
04/22/1980
3973278Artificial hip-joint
A hip-joint replacement having an endoprosthesis of the acetabulum and an endoprosthesis of the proximal portion of the femur connected with the endoprosthesis of the acetabulum, the endoprosthesis of the proximal portion of the femur comprising an intram...
08/10/1976
 
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