Class / Patent application number | Description | Number of patent applications / Date published |
623230110 | Femoral joint head | 54 |
20080255674 | FEMORAL HEAD AND METHOD OF MANUFACTURE THEREOF - A femoral head made from a ceramic-metal composite having a multi-layered construction and related method of manufacture is disclosed. The femoral head includes an inner metal core bonded to a relatively thin ceramic outer layer that is used as the articulating surface with an acetabular cup during total hip arthoplasty. In another embodiment, an interface layer having a ceramic and metal mixture may be laminated between the inner metal core and the exterior ceramic layer. | 10-16-2008 |
20080312748 | PROCESS FOR FORMING A CERAMIC LAYER - A process for forming a ceramic layer comprising a compound of a metal on a deposition surface of a workpiece comprises providing a reactive gas, selecting the amounts of a vapor of the metal and ions of the metal relative to each other, generating the metal vapor, and projecting an ion beam of the metal ions. The metal vapor, the metal ions, and the reactive gas form the ceramic layer with a desired structure. The process may include the step of controlling a deposition surface temperature. In one embodiment, the metal vapor comprises zirconium vapor and the ion beam comprises zirconium ions. The relative amounts of the zirconium vapor and the zirconium ions are selected to form a zirconia ceramic layer on the deposition surface. The zirconia may have multiple crystal phases that are formed according to a predetermined ratio. | 12-18-2008 |
20090043397 | Modular Femoral Head Surface Replacement, Modular Femoral Neck Stem, and Related Sleeve, Adapter, and Osteoconducting Rod - Disclosed therein is a big femoral head and femoral head surface replacement, which are used for hip osteoarthritis and vascular necrosis of femoral head. As a person get older and aged, the weight bearing hip joint is indispensably changed to osteoarthritis and sometimes showed avascular necrosis of the femoral head with unknown etiology. The deformed femoral head and hip joint should be replaced with the THA. Till now, the total hip replacement is performed in such a way that the necrosed femoral head and a healthy femoral neck are all removed and a femoral stem is inserted into the marrow cavity, and in this case, a small femoral head causes a reduction of a range of motion and dislocation of the hip joint occasionally, and osteolysis due to abrasion of plastic acetabular liner. In case of a conventional femoral head surface replacement (hereinafter, called “conventional FHSR”), a complication of femoral neck fracture and could not combined use with conventional THA. Recently, hard bearing system such as metal on metal THA or ceramic on ceramic THA without using plastic has been introduced to solve the problem of osteolysis due to abraded plastic particles generated when the THA is worn out as time goes. But there also have many problems as a limited range of motion, resected normal femoral neck and difficulties of rereplacement of the femoral stem. Because of the big femoral head or the FHSR can increase the range of motion and lower dislocation rate these devices are gradually widespread in young active person and Asian peoples. This invented design of the modularity gives the convenience to the surgeon and economically lower burden to patients to use of the FHSR and big femoral head system. The related accessory showed initial stability of the FHSR during operation and prevent from femoral neck fracture in follow-up periods. | 02-12-2009 |
20090112330 | Ball joint or cap implant for an artificial hip joint - A ball joint or cap for an artificial hip joint is described that is suitable for carrying out a rotating or pivoting motion in an artificial hip joint socket, with a gap being provided for a natural fluid film (synovial fluid) between itself and the artificial hip joint socket, and with regular depressions without interconnecting channels between them being recessed in areas of its surface. It is proposed that its surface in the polar area is smooth and without depressions, that an area is provided in an intermediate area between the smooth polar area and its equator, in which depressions are recessed with hole widths between 1.0 mm to 3.0 mm, that adjacently in the intermediate area in the direction of its base edge, further depressions are recessed, the hole widths of which become steadily smaller, the closer they lie to the base edge, with hole widths between 0.5 mm and 1.0 mm. | 04-30-2009 |
20090248170 | PROSTHESIS - In a prosthesis and method for manufacturing the same, the prosthesis has an outer articulating surface and an inner bone-contacting surface. The inner surface of the prosthesis has at least one osteo-integration zone with one or more surface formations integrally cast with the wall of the prosthesis. In some instances the prosthesis may be a femoral head prosthesis. To manufacture the prosthesis, a mold is prepared and the prosthesis is cast to include the surface formations. | 10-01-2009 |
20100023131 | Femoral head prosthesis - An implant is provided for replacing the proximal portion of a femur having a substantially intact natural femoral neck and a lateral side opposite the femoral neck, with a bore extending from the femoral neck through a lateral side of the femur. The implant comprises a sleeve having a flange for engaging a proximally facing resected surface of the neck surrounding the bore in the femur and having a bore with an inwardly tapered conical portion. A shaft member having a longitudinal axis, a distal end, and a proximal end is placed in the bore through the femur. The shaft member has an intermediate conically tapered male portion for coupling to the conically tapered bore of the sleeve and a proximal end having a conically tapered portion. A head member having a distal end and a proximal substantially-spherical portion and a tapered recess is configured for positioning in a natural or prosthetic hip socket. | 01-28-2010 |
20110004318 | METHOD AND APPARATUS FOR HIP FEMORAL RESURFACING TOOLING - Tools and methods for implanting hip resurfacing femoral prostheses along a path defined by the axis of a shaped femoral head surface are described. The prostheses are stemless partial ball components having an outer surface shaped to conform to an acetabular socket and may be a two part design having a mating sleeve component with an internal bore adapted to receive the shaped femoral head. The tools and methods are capable of accurately implanting both one and two piece ball components and sleeves without requiring the prosthesis to have a central stem or the preparation of a stem cavity in the femoral head and neck. | 01-06-2011 |
20120101590 | CERAMIC BALL SOCKET INSERT HAVING INVERSE-CONICAL GUIDE PINS - A hip joint prosthesis having a socket insert and a hip socket, a conical guide pin being situated on the pole of the socket insert and a guide bore being situated at the base of the hip socket and the guide pin being located in the guide bore in the installed state of the socket insert in the hip socket, | 04-26-2012 |
20120109333 | MEDICAL DEVICE AND A METHOD FOR TREATING A HIP JOINT - A medical device for treating hip joint osteoarthritis by providing at least one hip joint surface for a human patient is provided, wherein said medical device has a largest diameter or a largest cross-sectional distance, and an opening, and wherein said largest diameter or cross sectional distance is adapted to be changed during an operation. Furthermore, a method of treating a hip joint of a human patient by providing said the medical device is provided. The hip joint comprising a caput femur and an acetabulum, the method comprises the steps of: cutting the skin of the patient, dissecting an area of the pelvic bone on the opposite side from the acetabulum, creating a hole in said dissected area, said hole passing through said pelvic bone and into the hip joint of the patient, and providing said medical device to the hip joint, through said hole in the pelvic bone of the patient. | 05-03-2012 |
20120116529 | HIP JOINT DEVICE - A medical device for fixation in a femoral bone of a patient is provided, the medical device comprises: a connecting portion adapted to be connected to a prosthetic hip joint contacting portion, an expanding portion, and a bone contacting surface on the expanding portion. The expanding portion could be adapted to be at least partially inserted into the femoral bone of a patient and to expand within the femoral bone, such that the bone contacting surface is placed in contact with the inside of the femoral bone for fixating the medical device to the femoral bone. By the fixation using an expanding portion a sturdy fixation is achieved without the need to go into or penetrate bone, or the need for fixation using bone cement. | 05-10-2012 |
20120116530 | HIP JOINT DEVICE AND METHOD - A medical device for treating hip joint osteoarthritis by providing a joint surface is provided. The medical device comprises at least two artificial hip joint surface parts, wherein said at least two artificial hip joint surface parts are adapted to be connected to each other to form an artificial hip joint surface during an operation. Furthermore a method of treating a hip joint of a human patient by providing said the medical device is provided. The hip joint comprising a caput femur and an acetabulum, the method comprises the steps of: cutting the skin of said human patient, dissecting an area of the pelvic bone on the opposite side from said acetabulum, creating a hole in said dissected area, said hole passing through said pelvic bone and into said hip joint of said human patient, and providing said medical device to said hip joint, through said hole in said pelvic bone of said human patient. | 05-10-2012 |
20120116531 | HIP JOINT DEVICE AND METHOD - A medical device for treating hip joint osteoarthritis in a human patient by providing at least one artificial hip joint surface is provided. The medical device is adapted to be inserted through a hole in said pelvic bone from the opposite side from said acetabulum, to be in contact with said pelvic bone, and to transfer a load from said medical device to said pelvic bone through said contact with said pelvic bone. Furthermore a medical device for treating osteoarthritis by providing a joint surface is provided, wherein said medical device comprises an artificial acetabulum surface having a largest diameter. The artificial acetabulum surface is adapted to be inserted through a hole in the pelvic bone from the opposite side from acetabulum of a human patient for providing said joint surface, the artificial acetabulum surface comprises at least one supporting member. The at least one supporting member is adapted to be in connection with the pelvic bone after insertion through said hole in the pelvic bone, and carry the load placed on caput femur from the weight of said human patient by the connection with the pelvic bone after insertion through said hole in the pelvic bone. | 05-10-2012 |
20120116532 | HIP JOINT DEVICE AND METHOD - A medical device for treating hip joint osteoarthritis in a human patient by providing at least one artificial hip joint surface is provided. The hip joint having a ball shaped caput femur as the proximal part of the femoral bone with a convex hip joint surface towards the centre of the hip joint and a bowl shaped etabulum as part of the pelvic bone with a concave hip joint surface towards the centre of the hip joint. The medical device comprises the artificial hip joint surface comprising at least one of; an artificial caput femur or an artificial caput femur surface comprising, a convex form towards the centre of the hip joint, and an artificial acetabulum or an artificial acetabulum surface comprising, a concave form towards the centre of the hip joint. The artificial convex caput femur or the artificial convex caput femur surface is adapted to be fixated to the pelvic bone of the human patient and the artificial concave acetabulum or artificial concave acetabulum surface is adapted to be fixated to the femoral bone of the human patient. | 05-10-2012 |
20120116533 | HIP JOINT DEVICE AND METHOD - A medical device for implantation in a hip joint of a patient, the natural hip joint having a ball shaped caput femur integrated with a collum femur having a collum and caput center axis, extending longitudinal along the collum and caput femur, in the center thereof, as the proximal part of the femoral bone with a convex hip joint surface towards the centre of the hip joint and a bowl shaped acetabulum as part of the pelvic bone with a concave hip joint surface towards the centre of the hip joint, the medical device comprising; an artificial caput femur comprising a convex surface towards the centre of the hip joint, an elongated portion adapted to be connected to a prosthetic spherical portion of said artificial convex caput femur and fixated to the pelvic bone of the human patient. | 05-10-2012 |
20120130504 | HIP JOINT DEVICE, SYSTEM AND METHOD - A medical device for treating hip joint osteoarthritis in a human patient is provided, the hip joint comprises an acetabulum, being a part of the pelvic bone, and a caput femur, being connected to the collum femur and being the upper extremity of the femoral bone. The caput femur and collum femur further comprises cortical bone, the outer more sclerotic bone, and cancellous bone, placed in the bone marrow, said medical device comprising: an artificial caput femur surface, adapted to be in contact with the acetabulum surface or an artificial replacement therefor, and a fixating member adapted to at least partly be stabilized by the cortical bone of a stabilizing part of the collum femur. | 05-24-2012 |
20120150312 | HIP JOINT DEVICE AND METHOD - A medical device for implantation in a hip joint of a patient is provided. The medical device is adapted to be fixated to the femoral bone of the patient. The medical device comprises an inner and an outer surface, wherein a contacting portion of said inner surface is spherical and adapted to face the center of the hip joint when said medical device is implanted, and wherein said medical device is adapted to receive a prosthetic replacement for the caput femur fixated to the pelvic bone having a spherical portion. The medical device comprises at least one extending portion, extending said contacting portion of said inner surface such that said at least one extending portion clasps said spherical portion of said prosthetic replacement for the caput femur, such that said spherical portion is restrained in said medical device. | 06-14-2012 |
20120150313 | MEDICAL DEVICE AND METHOD FOR TREATMENT OF HIP JOINT - A medical device for delivering an action to an area of a hip joint or its surroundings, inside a human body, is provided. The hip joint of a patient comprises a collum femur and a ball shaped caput femur, being the proximal parts of the femoral bone, and an acetabulum, being a bowl shaped part of the pelvic bone. The medical device comprising; an elongated member, having a length axis along its elongated distribution, comprising a first portion, adapted to enter the body of the patient, and a mechanical element, adapted to be used during an operation in the hip joint or its surroundings, inside the body. The first portion of the elongated member comprises a holding member adapted to hold the mechanical element inside the body of the patient, wherein the first portion of the elongated member have a first portion cross-section area substantially perpendicular to the length axis of the elongated member. The first portion is adapted to pass through a hole, in a bone of the patient, the hole having a hole cross-section area. The first portion cross-section area, is adapted to be smaller than said hole cross-section area. The mechanical element have a functional status, ready to deliver said action inside said body, when held by the holding member inside the body of the patient. The mechanical element is adapted to have a mechanical element cross-sectional area substantially perpendicular to the length axis of the elongated member, substantially larger than the first portion cross-sectional area and adapted to be unable to pass through the hole, when the mechanical element is in the functional status. | 06-14-2012 |
20120165953 | PROCESS FOR FORMING A CERAMIC LAYER - A process for forming a ceramic layer comprising a compound of a metal on a deposition surface of a workpiece comprises providing a reactive gas, selecting the amounts of a vapor of the metal and ions of the metal relative to each other, generating the metal vapor, and projecting an ion beam of the metal ions. The metal vapor, the metal ions, and the reactive gas form the ceramic layer with a desired structure. The process may include the step of controlling a deposition surface temperature. In one embodiment, the metal vapor comprises zirconium vapor and the ion beam comprises zirconium ions. The relative amounts of the zirconium vapor and the zirconium ions are selected to form a zirconia ceramic layer on the deposition surface. The zirconia may have multiple crystal phases that are formed according to a predetermined ratio. | 06-28-2012 |
20120203352 | MINIMALLY INVASIVE TOTAL HIP REPLACEMENT - A femoral implant for total hip replacement includes a cage screw, a femoral head and a base plate provided between the cage screw and the femoral head, to minimize the stress transferred from the femoral head to the bone. The femoral implant may optionally include devices for lateral fixation (for example, internal and/or external screws for lateral fixation) and a device for minimizing micro-motion that is integral to, and extends from, the cage screw. | 08-09-2012 |
20120259422 | FEMORAL NECK PROSTHESIS - A femoral neck prosthesis ( | 10-11-2012 |
20120259423 | ORTHOPAEDIC SURGICAL PROCEDURE FOR IMPLANTING A REVISION HIP PROSTHESIS - A modular femoral prosthesis for use during performance of a hip revision procedure includes a proximal body component, a distal stem component, and a locking bolt. Surgical instruments and methods for use in implanting such a modular femoral prosthesis are disclosed. | 10-11-2012 |
20130190889 | ARTIFICIAL HIP JOINT CONSISTING OF MULTI-LAYER SHELL CORE COMPOSITE STRUCTURAL COMPONENTS - An artificial hip joint consisting of multi-layer shell core composite structural components includes an artificial acetabular bone ( | 07-25-2013 |
20140052270 | Patient-Specific Hip Joint Devices - An implant for a femoral head of a patient. The implant includes a shell implantable on the femoral head of the patient and correcting a defect of the femoral head. The shell is designed preoperatively to have a patient-specific first surface for articulation with the patient's acetabulum and a patient-specific periphery mateable with a periphery of the defect. The shell caps the defect and the first surface of the shell is continuous to a remaining healthy surface of the femoral head. The defect can be a bone defect, a cartilage defect or a combination thereof. | 02-20-2014 |
20140128988 | FEMORAL HEADS, MOBILE INSERTS, ACETABULAR COMPONENTS, AND MODULAR JUNCTIONS FOR ORTHOPEDIC IMPLANTS AND METHODS OF USING FEMORAL HEADS, MOBILE INSERTS, ACETABULAR COMPONENTS, AND MODULAR JUNCTIONS FOR ORTHOPEDIC IMPLANTS - Femoral heads, mobile inserts, acetabular components, and modular junctions for orthopedic implants, e.g., hip replacement implants, and methods of using femoral heads, mobile inserts, acetabular components, and modular junctions for orthopedic implants are provided. Prosthetic femoral heads, mobile inserts, and acetabular components are provided that can alleviate soft tissue impingement, reduce implant wear, and/or reduce frictional torque. Modular junctions are provided that can minimize the incidence of loosening and micromotion that can occur at modular junctions of orthopedic implants. | 05-08-2014 |
20160113771 | FEMORAL HEAD RESURFACING IMPLANT - A femoral head resurfacing implant is described comprising an external articulating surface and an internal fixation surface. A stem projects from the center of the internal fixation surface. The internal fixation surface comprises a top surface, surrounding and substantially orthogonal to a long axis of the stem, a chamfer surface extending downwardly and outwardly from the top surface and a side surface extending substantially parallel to the long axis of the stem. At least one projection is arranged on the internal fixation surface to provide a predetermined gap between the top surface and/or chamfer surface and a resected head onto which the implant is to be fitted. Furthermore, the side surface constitutes or comprises a cement containment feature configured to restrict or eliminate outflow of cement from the predetermined gap. | 04-28-2016 |
20160374813 | PARTIAL HIP PROSTHESIS - A partial hip prosthesis for reducing friction and wear in partial hip prosthesis by combining optimized geometry of the articulation and surface treatment of the prosthetic component. In the prosthesis, one of the articulating surfaces—either that of the reamed acetabulum, or that of the femoral head prosthesis is a-spherical so that a fluid-filled gap is formed at the area of major load transfer. The fluid-filled gap is sealed by an annular area of contact, over which the concave and the convex components are congruent. A prosthetic head is fixed to the femur by either a conventional stem, a perforated shell, or a femoral neck prosthesis screwed onto the femur so that it is partially covered by bone and partially exposed on the medial-inferior aspect, where it abuts the reamed cortex of the calcar region. | 12-29-2016 |
623230120 | Femoral joint head cap | 28 |
20080200991 | Resurfacing femoral head component - A hip resurfacing femoral component is designed to be used with a prepared femur. The hip resurfacing femoral component comprises a head portion which has a substantially spherical outwardly facing bearing surface with an attachment surface opposing the bearing surface of the head portion. The femoral component further comprises a skirt portion with an outer skirt surface which depends from the substantially spherical bearing surface and an inner skirt surface. The inner skirt surface and the attachment surface are configured to fit over the prepared femur. | 08-21-2008 |
20080221700 | Implant - The invention relates to a cap-shaped implant for implanting on a prepared stump of a femoral head. The implant is in the form of a ball section ( | 09-11-2008 |
20090048681 | Hip Resurfacing Implant - The presented invention is an implant meant for hip resurfacing arthroplasty, a surgical reconstruction performed on patients with diseased hips, during which the surgeon replaces the surface of the femoral head with a polished metallic spherical shell. The presented implant consists of a metallic shell ( | 02-19-2009 |
20090062925 | SYSTEMS AND METHODS FOR PROVIDING DEEPER KNEE FLEXION CAPABILITIES FOR KNEE PROSTHESIS PATIENTS - Systems and methods for providing deeper knee flexion capabilities, more physiologic load bearing and improved patellar tracking for knee prosthesis patients. Such systems and methods include (i) adding more articular surface to the antero-proximal posterior condyles of a femoral component, including methods to achieve that result, (ii) modifications to the internal geometry of the femoral component and the associated femoral bone cuts with methods of implantation, (iii) asymmetrical tibial components that have an unique articular surface that allows for deeper knee flexion than has previously been available and (iv) asymmetrical femoral condyles that result in more physiologic loading of the joint and improved patellar tracking. | 03-05-2009 |
20090177287 | Endoprosthesis for Orthopedic Applications - An endoprosthesis for orthopaedic applications comprising a prosthesis body suitable for interfacing between a first and a second bone at a first and a second wall respectively. The prosthesis body, at least one of said walls, comprises a fixing interface suitable for favouring the osteo-integration with an associable bone, which is spaced from one of the walls of the prosthesis body by a plurality of spacer elements for forming a meatus between the interface and the wall, said meatus determining cavities and undercuts suitable for seating growing bony tissue. The fixing interface comprises a reticular structure having a plurality of meshes integrally interconnected to each other and suitable for favouring the osteo-integration. | 07-09-2009 |
20100010638 | Laser-Produced Porous Surface - An implant having a porous tissue ingrowth structure and a bearing support structure is disclosed. The implant includes a metal insert having a bone ingrowth structure, an intermediate structure and a bearing support structure. A bearing surface is formed from a polymer material and attached to the bearing support structure. The intermediate structure has a porosity sufficient to inhibit the polymer material from translating through the bearing support structure to the bone ingrowth structure. | 01-14-2010 |
20100049329 | Coxo-femoral surface prosthesis for veterinary use - A coxo-femoral surface prosthesis for veterinary use is described. The prosthesis comprises a femoral cap and an acetabular cup which are complementary in volume, an intermediate lining and a screw fixing femoral stem. The femoral stem comprises a head portion, a shank portion and a threaded portion. (FIG. | 02-25-2010 |
20100076570 | MEDICAL IMPLANT - The present invention provides an implant ( | 03-25-2010 |
20100121458 | FEMORAL HEAD RESURFACING - A hip resurfacing femoral prosthesis has a partial ball component having an outer surface shaped to conform to an acetabular socket and has a mating sleeve component with an internal bore adapted to receive a femoral head. The head has been shaped and dimensioned to engage the bore and is retained by bone ingrowth, an interference fit or by bone cement. The ball component and sleeve axes may be offset to reposition the outer surface. | 05-13-2010 |
20100305713 | SET FOR PRODUCING AN OFFSET RESURFACING CONDYLE CAP IMPLANT FOR AN ARTIFICIAL HIP JOINT - A set for producing an offset resurfacing condyle cap implant for an artificial hip joint is described. | 12-02-2010 |
20110054631 | CARTILAGE RESURFACING IMPLANT - The invention relates to a cartilage resurfacing implant for replacing all or some of the articular cartilage, characterised in that it is made of a biocompatible material ( | 03-03-2011 |
20120150314 | HIP JOINT DEVICE AND METHOD - A medical device for implantation in a hip joint of a patient is provided. The medical device is adapted to be fixated to the pelvic bone of the patient. The medical device comprises an inner and an outer surface, a contacting portion of the inner surface is spherical and adapted to face the center of the hip joint when said medical device is implanted, and said medical device is adapted to receive a caput femur or a prosthetic caput femur having a spherical portion. The medical device comprises at least one extending portion adapted to clasp the caput femur, or prosthetic caput femur, for restraining said caput femur, or prosthetic caput femur in said medical device. The medical device is adapted to release the caput femur or prosthetic caput femur from the medical device when a predetermined strain is placed on the medical device. The ability of the medical device to release the caput femur or prosthetic caput femur from the medical device when a predetermined strain is placed on the medical device reduces the risk that the prosthesis is loosened by an abnormal strain being placed on the hip joint from e.g. the patient falling or making a rapid movement of the hip. | 06-14-2012 |
20130060346 | Hip Prosthesis System - A hip prosthesis system ( | 03-07-2013 |
20140222158 | FEMORAL PROSTHESIS HEAD - A prosthetic head for a femoral component has a metal shell with a tapered cavity. The shell has a part-spherical outer surface defining an inner portion terminating in an open end. A polymeric material completely fills the inner portion of the hollow shell extending from an inner surface of the shell to the open end. The polymeric material includes a conically tapered socket centered about the polar axis intermediate ends of the open end wherein the shell is a hollow titanium shell having an inner surface with a porous structure for receiving a portion of the polymeric material. The hollow titanium shell inner surface has at least one rib extending inwardly toward the conically tapered socket. | 08-07-2014 |
20140371868 | Modular Joint Prosthesis System, Premounted Joint Prosthesis System Part and Sterile Article - A modular hip joint prosthesis system has an intermediate element which has an inner surface for receiving a prosthesis neck and an outer surface, a joint ball head which is embodied as a plug head having an inner surface associated with the outer surface of the intermediate element, and a bipolar joint socket in which an inlay is received in an outer shell in a freely moving manner and which has a ball receiver which is associated with the joint ball head, configured such that the joint ball head can be received in a movable manner. A premounted joint prosthesis system part for a modular joint prosthesis system and a sterile article are also provided. | 12-18-2014 |
20150335437 | Medical Implant for Reducing Pain in Diseased Joints - The present invention relates to a medical implant for reducing pain in diseased joints such as synovial joints, in particular ball and socket joints such as the hip joint and the shoulder joint. One embodiment relates to a medical implant for attachment to and at least partly covering the femoral head, said medical implant comprising a dome shaped shell with an orifice, said shell having a height h | 11-26-2015 |
623230130 | Including an inner shell | 2 |
20120150315 | HIP JOINT DEVICE AND METHOD - A medical device for treating hip joint osteoarthritis by providing at least one hip joint surface for a human patient is provided, wherein said medical device has a largest diameter or a largest cross-sectional distance, and an opening, and wherein said largest diameter or cross sectional distance is adapted to be changed during an operation. Furthermore, a method of treating a hip joint of a human patient by providing said the medical device is provided. The hip joint comprising a caput femur and an acetabulum, the method comprises the steps of: cutting the skin of the patient, dissecting an area of the pelvic bone on the opposite side from the acetabulum, creating a hole in said dissected area, said hole passing through said pelvic bone and into the hip joint of the patient, and providing said medical device to the hip joint, through said hole in the pelvic bone of the patient. | 06-14-2012 |
20140200675 | Lined Femoral Cup - The lined femoral cup of the invention is used in a new reverse hip prosthesis wherein the cup is affixed to the femur and the ball is affixed to the acetabulum. This permits installation of the liner in the factory instead of the operating room. Prior art hip prostheses require installation of the liner in the operating room because the cup must be affixed to the acetabulum, usually by screws, before the liner can be installed. Thus, in a preferred embodiment of the invention the liner is installed under high pressure in the factory. In a second embodiment, a threaded cap is used which permits replacement of the liner without removing the cup from the patient. | 07-17-2014 |
623230140 | Including neck anchoring means | 10 |
20090306788 | IMPLANT FOR RESURFACING A FEMORAL HEAD - A resurfacing implant composed of a femoral cap ( | 12-10-2009 |
20100016986 | Femoral Head Surgical Resurfacing Aid - A femoral head surgical resurfacing aid that includes a C-shaped band with an interior surface conformed to fit a femoral neck of a patient is presented. An arch extends from one side of the C-shaped band to the other side of the C-shaped band and further extends over a femoral head of the patient. An alignment tube guide is positioned along the arch and extends outward from the arch. | 01-21-2010 |
20100168866 | Femoral head prosthesis assembly and operation instruments thereof - A femoral head prosthesis assembly and operation instruments thereof. The operation instruments include a hollow femoral neck holder with a configuration adapted to the surface configuration of the femoral neck and a shaper blade for cutting a replacement end of the femur into a predetermined configuration. A guide tube is disposed on a top face of the femoral neck holder. A transverse slot is formed on the femoral neck holder for indicating a femoral head cutting line. The femoral head prosthesis assembly includes a cap body and an artificial femoral head. A root section of the cap body has an inner surface in conformity to the surface of the femoral neck. A top section of the cap body has a cross section adapted to that of the replacement end. The cap body can be precisely securely bonded with the replacement end of the femur. | 07-01-2010 |
20110202141 | METHOD AND APPARATUS FOR AUGMENTING BONE DEFECTS - A bone augment for repairing a bone defect. The bone augment includes a porous body and a metallic liner. The porous body defines a bore and is configured to be intraoperatively shaped to correspond to the bone defect. The metallic liner is injection molded within the bore such that portions of the liner interlock with pores of the porous body. The metallic liner is operable to mount an implant to the bone augment. | 08-18-2011 |
20120109334 | HIP JOINT DEVICE - A locking member for implantation in a hip joint of a patient is provided. The hip joint has a caput femur integrated with a collum femur having a center axis extending longitudinal along the collum and caput femur in the center thereof. The locking member is adapted to assist in the fixation of a medical device, having an artificial hollow caput femur surface, to the collum and/or caput femur, wherein said artificial caput femur surface comprises at least one extending portion adapted to clasp a portion of the caput and/or collum femur, and wherein said locking member comprises an element adapted to lock said artificial caput femur surface such that the caput femur remains clasped and restrained in said artificial caput femur surface. | 05-03-2012 |
20120116534 | HIP JOINT DEVICE, SYSTEM AND METHOD - An implantable medical device for implantation in a hip joint of a human patient is provided. The medical device comprises: at least one artificial hip joint surface adapted to replace at least the surface of at least one of the caput femur and acetabulum. At least one artificial hip joint surface comprises: a positioning hole with at least one opening in said at least one artificial hip joint surface. The hole is adapted to be placed and dimensioned such that the medical device is adapted to be fitted using a positioning shaft and at least partly surround the shaft, for positioning the at least one artificial hip joint surface in a desired position in the hip joint. The hole is adapted to be fitted using the positioning shaft, when the shaft is stabilized and placed in at least one of the femoral bone and the pelvic bone for positioning said medical device inside the hip joint. | 05-10-2012 |
20140257512 | Cementless Hip Resurfacing Prosthesis - A cementless hip resurfacing prosthesis is provided. The prosthesis comprises a metallic cap that is fitted over the individual's femoral head to provide a new acetabular articulating surface. The metallic cap is affixed to the femur via a locking means extending from the inner surface of the metallic cap, which engages with a complimentary tubular fixation means attached to a plate. The plate is affixed to the lateral surface of the femur via a fixation screw, which extends through the fixation means, through the locking means, and engages with a complimentary threaded portion within the locking means. The plate is further affixed to the femur via a plurality of cortical screws, which also act to distribute the forces from the hip joint to avoid stress shielding and bone resorption effects commonly associated with hip replacement prostheses. Furthermore, the present invention is designed to reduce shear stresses on the femoral neck. | 09-11-2014 |
20150039093 | DIFFERENTIAL POROSITY PROSTHETIC SYSTEM - A prosthetic femoral implant for use in a hip joint, as a ball and socket type joint, is disclosed. The implant includes a modular neck having a variety of adjustable positions to adjust the lateral offset and version angle of the femoral implant in relation to the femur. The implant further includes a broad, full collar for providing a compression force increasing the interdigitation between the interface of the bone, implant and cement. The implant also includes a stem having a depression having a roughened porous surface for resisting the increased torsional loads placed on the implant due to the increased lateral offset and version angle. The stem further comprises three distinct zones, each zone having its own roughened surface creating a tripartite differential porosity. | 02-05-2015 |
20150039094 | CEMENT-FREE SURFACE REPLACEMENT PROSTHESIS FOR THE NATURAL FEMUR HEAD - The invention relates to a ceramic surface replacement prosthesis (I) for the natural femur head ( | 02-05-2015 |
20160045320 | VARIABLE HIP RESURFACING FEMORAL IMPLANT - A variable hip resurfacing implant which allows for varying configuration options to account for characteristics of underlying degenerative hip joint disease and for both un-cemented and cemented application. The variable hip resurfacing implant generally includes a femoral head portion, bearing surface, outer rim, inner planar surface, central stem, and a central stem threaded hole. | 02-18-2016 |