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Class 623/23.15 - Femoral stem


Subclass of Class 623 - Prosthesis (i.e., artificial body members), parts thereof, or aids and accessories therefor
Definition: Subject matter wherein the artificial hip joint bone or
No. of patents: 104
Last issue date: 05/31/2011


1      
NumberTitleIssue Date
7951205Modular proximal body trial
A system and method for trialing a modular hip replacement system permits evaluation and replication of the anatomic anteversion rotational angle of the femur. In one embodiment, a femoral hip implant kit includes at least one distal implant and a plurality of femor...
05/31/2011
7763080Implant system with migration measurement capacity
Position reference members are provided as part of an orthopaedic implant system. Both position reference members can be implanted on or in the same bone as the other parts of the implant. One of the position reference members is fixed to the bone and the other posi...
07/27/2010
7585329Modular proximal body trial
A system and method for trialing a modular hip replacement system permits evaluation and replication of the anatomic anteversion rotational angle of the femur. In one embodiment, a femoral hip implant kit includes at least one distal implant and a plurality of femor...
09/08/2009
7476255Soft tissue attachment system and method
A system and method is provided in which natural bone removed during a joint surgery is retained along with the natural attachment of the associated soft tissues. For instance, in a hip surgery, a portion of the greater trochanter is removed while retaining the soft...
01/13/2009
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
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
7214246Prosthesis with feature aligned to trabeculae
A ball and socket joint prosthesis for use in arthroplasty is provided. The prosthesis includes a body for implantation at least partially within the medullary canal of a long bone. The long bone defines trabeculae in the proximal cancellous bone and lamellae in the...
05/08/2007
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
7186269Composite shoulder prosthesis
The invention is a modular composite shoulder prosthesis 64, whose construct incorporates a solid autogenous bone graft 50 to be used to replace the upper humerus in certain fracture types. The prosthesis comprises a stem 22 to be inserted in th...
03/06/2007
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
7156879Femur fixture and set of femur fixtures
A femur fixture for a hip-joint prosthesis comprising an intraosseous anchoring structure of a generally circular cross-section for screwing laterally into a complementary bore drilled laterally into the neck of a femur after resection of the femur head to an anchor...
01/02/2007
7135044Modular prosthesis kits
Modular prosthesis kits and systems are disclosed. The kit includes a plurality of stems having a bore therein and a plurality of necks having a tapered distal end adapted to taper lock in the bore of one of the stems. Each neck includes a stem registration element ...
11/14/2006
7128763Joint treating method
A method for treating a non-weight bearing arthritic joint involves resecting at least one of the opposed joint surfaces to expose a cancellous bone surface. A bioresorbable implant is mounted to one of the joint surfaces so that the resected joint surface rubs agai...
10/31/2006
7112203Apparatus for the preparation of a femur bone for the implantation of a prosthesis
An apparatus for the preparation of a cement-free implantation of a prosthesis is provided. The prosthesis has a distal part corresponding to a diaphysial region of the femur, a proximal part corresponding to a metaphysial region of the femur, and an intermediate re...
09/26/2006
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
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
7044976Prosthesis for long bone replacement in humans and animals
A modular system for the formation of a prosthesis for the replacement of a long bone in a human or animal body. The system provides a prosthesis having a proximal or distal end component such as a trochanter or condylar head, forming one component of a prosthetic j...
05/16/2006
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
6981991Arthroplasty devices configured to reduce shear stress
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...
01/03/2006
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
6968246Method for automated design of orthotic and prosthetic devices
A method for automated design of orthotic and prosthetic devices has been developed. The method includes scanning a three dimensional model of the patient's limb with a laser scanner. The model is loaded into a computer for use in manufacturing an orthotic or prosth...
11/22/2005
6949124Prosthesis with feature aligned to trabeculae
A ball and socket joint prosthesis for use in arthroplasty is provided. The prosthesis includes a body for implantation at least partially within the medullary canal of a long bone. The long bone defines trabeculae in the proximal cancellous bone and lamellae in the...
09/27/2005
6913623Two piecefused femoral hip stem
An orthopedic implant includes a metal core having a first end, a second end, a first elastic modulus, and a first porosity. A proximal body is fused directly onto the metal core between the first and second ends. The proximal body has a second elastic modulus, whic...
07/05/2005
6913624Orthopaedic implant with proximal collar
A cementless femoral hip stem component. The hip stem component includes an elongate stem, a proximal body, and a collar disposed on the proximal body and extending outward therefrom in a sideways direction to form a ledge. The proximal body defines at least a major...
07/05/2005
6911048Modular hip prosthesis
A modular hip prosthesis, comprising: (a) a proximal segment including a neck lockingly engageable with a femoral head component and a male tapered portion; (b) a distal segment having a proximal end and a distal tip, the distal segment further formed with a male ta...
06/28/2005
6875239Modular prosthesis for replacing bone and method
A modular prosthesis for replacing a portion of a bone having an articulating end includes a neck having a bore extending therethrough, a body having a bore extending therethrough, and an elongated stem. A proximal end of the stem is received within the bore of the ...
04/05/2005
6824568Implant
An implant (1) for insertion into and permanent anchorage in bone tissue having an intraosseous anchoring structure (3). The anchoring structure (3) has a generally circular cross-section and comprises a first cylindrical section (11) of ...
11/30/2004
6786932Femur end implant
A femur head implant has an oblique neck. A ball portion of a hip joint is connected to a first neck end. A femur head hollow portion is connected to a second end of the oblique neck. A tubular shell is connected to a lower end of the hollow portion. A slot in the t...
09/07/2004
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
6706073Neck-slip-prosthesis
A hip prosthesis constructed to transfer forces to the femur without relative movements that cause failures. The prosthesis stem has an open sided central bore. The proximal end of the prosthesis is configured to seat against interior surfaces of the femoral canal a...
03/16/2004
6669734Femur shaft prosthesis with a proximal centering apparatus
In the figures, proximal centering apparatuses (4) for collar-less femur shaft prosthesis (1) which can be cemented in and which can be pushed from the medial onto the shaft (3) in the cemented region are shown. The centering apparatus (4) has at least in...
12/30/2003
6652591Prosthesis with feature aligned to trabeculae
A ball and socket joint prosthesis (10) for use in arthroplasty is provided. The prosthesis includes a body (32) for implantation at least partially within the medullary canal (24) of a long bone (12). The long bone defines trabeculae (60) in the proximal...
11/25/2003
6626948Femoral hip prosthesis
A prosthetic femoral component is located in a prepared socket in a femur which has been resected at a position on the proximal side of its neck. The component includes an insert portion and an enlarged proximal head portion the distal end of the head por...
09/30/2003
6610099Fixture and prosthesis including the same
The invention relates to a fixture for insertion into and permanent anchorage in a cavity (32) formed in bone tissue. The fixture is made of a fixture member (2), which has an insertion end surface (10) and a cylindrical peripheral surface (6) provided wi...
08/26/2003
6610096Prosthetic implants having enhanced utility
A prosthetic implant system connected to the tissue of a living organism. The system contains a first device for measuring the mechanical strain in the implant in an area thereof which is not exposed to tissue regrowth, a second device for measuring the m...
08/26/2003
6607561Biaxial core compression
The invention describes a surgical implant for providing stabilization of an intraosseous circumferential fracture within a femoral neck of a proximal femur. The surgical implant includes a bone barrel and a cortical side plate having at least one screw h...
08/19/2003
6589285Apparatus for, and method of, providing hip prosthesis implantation
Surface irregularities are removed from the inner wall of a femur cavity, preferably tapered. A tamp having an opening and a socket is disposed in the cavity. The tamp may be one of a plurality of tamps each having a different length for the opening. A gu...
07/08/2003
6554865Humeral stem with distal tri-slot
A series of humeral stems, each stem including an axial bore and longitudinal slots along the distal end to allow for distal compression. The compression force necessary to compress the distal diameter of each stem varies by stem diameter. Thus, as the st...
04/29/2003
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