Разборный искусственный тазобедренный сустав

Verankerungsschale einer Hüftgelenkspfanne

Längliche Hüftgelenkpfanne

Hüftgelenkprothese

Metallimplantat mit einer Oberfläche und Verfahren zum Herstellen der Oberfläche

Gelenkpfanne für ein künstliches Hüftgelenk

KÜNSTLICHE HÜFTGELENKPFANNE

Hüftgelenkprothese

Endoprothese zur Einbringung in den Körper zum Ersatz eines Gelenks, insbesondere eines Hüft- oder Kniegelenks

Künstliches Gelenk, insbesondere künstliches menschliches Hüftgelenk

Halterungssysteme für Hüftpfannen-Endoprothesen

Press fit socket as a replacement of the hip joint socket comprises a conical ring section with fins providing stability against tilting, and a spherical bottom section

Press fit socket (I) as a replacement of the hip joint socket comprising a conical ring section (1) with fins (3) providing stability against tilting, and a spherical bottom section (2) with a central hole approximating the anatomy of the original natural hip joint socket, is new.

Cotyloid prosthesis

Cotyloid prosthesis comprises an insert holding the femoral head, the insert being placed in a cup (100). The cup has a peripheral groove (103) delimited by an edge (104) to hold a retractable belt (200). This belt (200) fitted with teeth (201) is attached by its two ends which are provisionally drawn together. These two ends are fitted with a hole (202, 203) in which is engaged a U-shaped pin (300) which is also engaged in two corresponding holes (105, 106) made in the edge (104). Preferably the belt (200) is also attached in the groove (103) at a diametrically opposed point by one or two pins (401, 402) placed in the holes (107, 108) of the edge (104) and the holes (204, 205) of the belt.

HIP JOINT ENDOPROSTHESIS

PROSTHETI HÜFTPFANNE WITH A MECHANISM AS SELFLOCKING CONE

BUILDING GROUP FOR A PROTHETI PAN WITH INCREASED CONGRUENCE OF THE CONSTRUCTION UNITS

PROCEDURE FOR THE PRODUCTION OF AN ARTIFICIAL JOINT PROSTHESIS WITH COVER

TWO-PIECE HUEFTGELENKSPFANNE.

HUEFTGELENKSPFANNE FOR CEMENT-FREE IMPLANTATION INTO THE ACETABULUM OF THE HUEFTBEINES.

CEMENT-FREELY INTRODUCTION METALLIC HUEFTGELENKSPFANNE.

OUTER SHELL TO AN AT LEAST CLAM-SHELL GELENKPFANNE OF AN ARTIFICIAL HIP JOINT AND ARTIFICIAL HIP JOINT WITH A SUCH OUTER SHELL

HIP JOINT PAN PROSTHESIS.

INTERIOR BOWL FOR A HIP JOINT PAN

ARTIFICIAL HIP JOINT PAN

CEMENT-FREELY EMBODYING HIP JOINT PAN IMPLANT

INSTRUMENT FOR THE HANDLING OF COMPONENTS OF JOINT PROSTHESES

AT LEAST CLAM-SHELL GELENKPFANNE OF AN ARTIFICIAL HIP JOINT AND ARTIFICIAL HIP JOINT WITH A SUCH GELENKPFANNE

PAN FOR A JOINT ENDOPROSTHESIS

SYSTEM FROM AN ARTIFICIAL JOINT COMPONENT AND AN INSTRUMENT FOR THE HANDLING OF THE ARTIFICIAL JOINT COMPONENT

METAL IMPLANT WITH A SURFACE AND PROCEDURE FOR MANUFACTURING THE SURFACE

PROCEDURE FOR THE PRODUCTION OF A THREAD WITH VARIABLY MODIFIABLE THREAD PROFILE AND APPLICATION OF THE PROCEDURE

HIP JOINT PAN RING PROSTHESIS WITH REINFORCEMENT SUPPORT

GELENKPFANNE FOR HÜFTPROTHESE

ARTIFICIAL HIP JOINT PAN

Systems and methods for sensory augmentation in medical procedures

The present invention provides a mixed reality surgical navigation system (10) to be worn by a user (106) during a surgical procedure comprising: a display device (104), to be worn by a user (106) during a surgical procedure, comprising a processor unit (102), a display generator (204), a sensor suite (210) having at least one camera (206) or depth sensor wherein the processing unit (102) creates a reference surface map (5804) of an exposed surface (5806) of an anatomical object (4204) with data received from the sensor suite (210); the processing unit (102) establishes a reference frame (5810) relative to the sensor suite (210) for the reference surface map (5804); orientation of the reference frame (5810) is established by creating additional surface maps (5834) of other anatomical features (5824) of the anatomical object (4204); the processing unit (102) tracks a pose of the anatomical object (4204) relative to the system (10) by creating a displaced surface map (5814) of the exposed ...

Method and apparatus for total hip replacement

Drill guide for acetabular cup fasteners

When an acetabular cup used in hip replacement surgery is to be affixed to the acetabulum using screws, the drill guide instruments of the invention are used to position a drill bit so that the screw holes drilled in the acetabulum are properly placed for optimum implantation of the acetabular cup. The drill guide is locked into the acetabular cup by spring loaded pins which position the guide over holes in the cup which accommodate the screws. The guide is used to position the drill bits and allow drilling. After drilling the guide is removed.

Ball-and-socket joint, particularly a prosthetic hip joint

Oblong acetabular cup

PROSTHETIC JOINT WITH ANNULAR CONTACT BEARING SURFACE

A prosthetic joint has a head member with a load-bearing surface, and a bearing member with a concave bearing surface oriented and configured such that during articulation of the prosthetic joint the load-bearing surface engages the concave bearing surface along an annular intermediate surface portion located between first and second ends of the bearing member and spaced from each of the first and second ends. The configuration of the bearing surface provides clearance between the head member and the bearing surface along portions of the bearing surface lying between the annular intermediate surface portion and each end of the bearing member to assure engagement of the load-bearing surface at the annular intermediate surface portion. An opening passes through the bearing member at the first end of the bearing member and communicates with the concave bearing surface.

ACETABULAR CUP ASSEMBLY FOR MULTIPLE BEARING MATERIALS

A modular acetabular cup assembly (10, 100, 200, 300, 350) for use with multiple bearing liners (32, 110, 212, 310, 354) is disclosed. The acetabular cup assembly includes a shell (12) having a tapered inner wall (28) and two circumferential grooves (24, 26). The shell (12) may be used with polyethylene, ceramic, metal, and other types of liners.

METHOD AND APPARATUS FOR TOTAL HIP REPLACEMENT

Methods and apparatus of the present invention provide for orthopaedic total replacement of the hip while substantially preserving muscles and soft tissues around the hip joint resulting in reduced healing time and decreased risk of dislocation following the procedure. In an exemplary embodiment, the acetabulum is prepared and fitted with a prosthetic acetabular cup 702 and a prosthetic femoral head 1102 is fitted into the prosthetic acetabular cup 702. An intramedullary rod 1502 is inserted longitudinally into the femur. A prosthetic femoral neck 3102 is then inserted from a point along the side of the patient's body and into the side of the femur and through a pre-existing lateral bore in the intramedullary rod 1502 and through the remainder of the femur to join the prosthetic femoral head 1102. The methods and apparatus include structures and techniques for fixing the prosthetic femoral neck 3102 in relation to the intramedullary rod 1502.

A SOCKET, IN PARTICULAR AN ACETABULAR SOCKET FOR A HIP ENDOPROSTHESIS

An acetabular socket (1) for a hip endoprosthesis comprises a socket shell (7) and a socket insert (8). The socket shell (7) is configured for implantation in a pelvic bone (2) of a patient and has an inner surface (12) that defines an accommodating space (10) extending about an axis of rotation (11). The socket insert (8) is coupleable with the socket shell (7) and is configured to provide a bearing for a joint head (6) of a prosthesis stem (3). The socket insert (8) has an outer surface (14) configured to be seated in the accommodating space (10) of the socket shell (7). A moveable anti-lock means (17) is provided between the socket shell (7) and the socket insert (8). In a first position the anti-lock means (17) restrains the socket insert (8) from seating within die accommodating space (10) of the socket shell (7) but the anti-lock means (17) is moveable into a second position wherein the socket insert (7) is capable of seating witliin the socket shell (7) and of coupling therewith.

CEMENTLESS ACETABULAR CUP

CEMENTLESS ACETABULAR CUP A prosthetic joint acetabular cup component is provided that can be press fit into a patient's acetabulum, to create an interference fit and to eliminate the need for cement. A body portion of the cup provides an outer convex surface. The inside of the cup provides an inner concave surface. An apex portion of the cup or shell is spaced from the lower rim portion, the lower rim defining a plane. A plurality of annular rings are spaced along the body outer surface beginning at the lower rim and extending at least a partial distance toward the apex. Each of the annular rings is preferably generally parallel to the plane of the lower rim.

PROSTHESIS ASSEMBLY

A prosthesis assembly (1) is described with a fixation element in the form of an acetabulum shell (2) with a bearing cup component insert (4). The bearing cup component (4) has a rim (8) with an augmented portion (10) to increase the range of motion on the bearing surface and to decrease the risk of dislocation. The augmented portion (10) of the rim (8) extends generally radially from the cup component insert (4) over the flat rim (26) of the shell (2). The augmented rim portion (10) of the present invention has increased strength such that the insert (4) can be formed of a ceramic material without the risk of fracturing of the augmented rim portion (10).

MODULAR ACETABULAR REINFORCEMENT SYSTEM

A modular acetabular reinforcement system includes a substantially cup-shaped reinforcement body having a peripheral flange portion. One or more fixation wing s, of various sizes and shapes, are selectively and separately attachable to the flang e portion of the reinforcement body. The system is mountable within the acetabulum of a patient t o reinforce the acetabulum and to serve as a platform for other prosthesis components such a s an acetabular shell.

METHOD AND APPARATUS FOR HIP PROSTHESIS

This invention is a prosthesis (10) for allowing natural ball and socket type movement, as in a hip or shoulder. A femoral component (20) having a ball (22) at one extremity is engaged with an acetabular component (60) having a hemispherical cup (62) to receive the ball (22). A ligamentous material (80) extends from a port (70) in the hemispherical cup (62) to a port (32) in the ball (22) to apply a resistive force to resist any dislocating force, the resistive force varying in proportion to the movement of the femoral component (20) from a natural and relaxed position in relation to the acetabular component (60).

KUENSTLICHES HUEFTGELENK.

TOTAL HIP JOINT ENDOPROSTHESIS.

CEMENT-FREELY EMBODY-CASH HIP JOINT PAN.

TWO-PIECE HIP JOINT PAN.

Spherical joint for hip joint prosthesis - includes cup shaped half with tapered metal shell carrying cutting thread formed by saw teeth

The cup shaped half (1) of a hip joint prosthesis has a part conical metal shell (2) containing a core (7) with a half spherical recess (4) for the ball end of the other half. The sloping external surface of the shell includes a helical thread (10) formed by short sawtoothed sections, which may be of briar tooth type. The clearance angle of each tooth is between 5 and 15 degrees and the cutting angle is less than 15 degrees. ADVANTAGE - Strong connection with the pelvis.

METALLIC OUTER SHELL.

CEMENT-FREELY IN THE BASIN EMBODY-CASH HUEFTGELENKSPFANNE.

Anchorage bowl for artificial hip joint pan for unzementierten anchorage.

Verankerungsschale mit hemisphärischer Aussenform für die Pfanne eines künstlichen Hüftgelenks, welche unzementiert mittels Impaktion in ein untermassig hergestelltes Knochenlager implantiert wird und welche im Klemmbereich mit widerhakenförmigen Zähnen, welche von einer Zahnreihe zur nächstfolgenden exakt auf Lücke positioniert sind, versehen ist, wodurch ein intensiverer Formschluss der verzahnten Oberfläche mit dem knöchernen Lager erzielt wird.

Cup for an artificial acetabular cup.

Verankerungsschale mit hemisphärischer Aussenform für die Pfanne eines künstlichen Hüftgelenks, welche unzementiert mittels Impaktion in ein untermassig hergestelltes Knochenlager implantiert wird und welche im Klemmbereich mit widerhakenförmigen Zähnen, welche von einer Zahnreihe zur nächst folgenden exakt auf Lücke positioniert sind, versehen ist, wodurch ein intensiverer Formschluss der verzahnten Oberfläche mit dem knöchernen Lager erzielt wird.

Acetabular prosthesis.

KUENSTLICHE HIP JOINT PAN.

Acetabulum for hip joint prosthesis

The hip joint acetabulum is made in two parts (1,2). The outer metal part (1) fits directly in the pelvis and its internal contour is shaped to receive the cup-shaped second part (2) such that no cement is required to hold the second part in place. The second part has an inner surface, with a low coefft. of friction, which receives the plastics etc. ball end (4) of the prosthesis shaft (5). The outer part has a number of meridional grooves and a number of holes for fixing screws (3) so that it can be fixed to the pelvis without the use of cement.

ARTIFICIAL HIP JOINT PAN.

Prosthesis element with recesses proceeds under the external surface.

È descritto un elemento (1) di protesi per interventi di chirurgia ortopedica o traumatologica destinato ad essere inserito in una parte ossea nel quale al di sotto di uno strato (11) recante la sua superficie esterna (Se) che deve venire a contatto con una parte ossea è ricavata una pluralità di recessi (2i) che comunicano con l'esterno mediante aperture (3i) realizzate attraverso il detto strato (11) recante la detta superficie esterna.

Screwing in pan for a hip joint implant.

Es wird eine Pfanne (1) für ein Hüftgelenkimplantat vorgeschlagen. Die konische oder sphärische Pfannenwand (2) mit einer konischen oder sphärischen Innenseite geht in einen Pfannenboden (5) mit einer zentralen Öffnung über, der einen geneigten, peripheren Bereich aufweist, in dem eine Vielzahl von Mitnehmernuten (14) eingeformt sind, zwischen denen Zwischenwände verbleiben. Am proximalen Ende weist die Innenfläche der Pfanne (1) einen planen Bodenbereich (16) auf, der von einer ringförmigen Vertiefung gebildet ist und sich bis unter die Zwischenwände erstreckt, so dass diese auskragende Absätze (12) bilden. Die Pfanne (1) lässt sich mit einem Eindrehwerkzeug setzen, welches einen hohlen Schraubstiel besitzt, in dem ein Betätigungsstab lagert. Der Schraubstiel geht in einen Stempel (22) mit Eingrifffingern (23) über, die formschlüssig in entsprechende Mitnehmernuten (14) einführbar sind, während am Betätigungsstab eine Arretierkrone (24) mit Zacken (26) angebracht ist, wobei die Zacken ...

Implant socket for hip joint, has socket floor provided with non-slip device for receiving insertion tool

An implant socket (1) has an outer conical or spherical wall (2) with an screw-in device (4) on its outer face (3) for anchorage in the hip-bone and whose socket floor (5) has a central opening (6) and with an inner socket wall (7) of spherical or conical shape. The floor (5) of the socket has a non-slip device (10) for receiving an insertion tool (not-shown here). An independent claim is included for an insertion tool.

Ceramic ball socket insert having inverse-conical guide pins

Artificial loxo-femoral leg joint - with cotyle piece provided with spiked head to formally anchor part in bone

Implant for cotyloid cavity

Implant cotyloïdien comprenant en combinaison une cupule (1) sensiblement hémisphérique adaptée pour être impactée dans une cavité cotyloïdienne (2) et dans laquelle est ménagée une fente méridienne (6), et une coupelle hémisphérique métallique rigide (4), ininterrompue, de diamètre légèrement supérieur à celui de la cupule, dans laquelle ladite coupelle peut être introduite par écartement de lèvres (6a) délimitant la fente; la coupelle est maintenue dans une orientation déterminée par rapport à la cupule par un serrage élastique exercé sur la cupule par la coupelle, ce qui écarte les risques de luxation; de plus la coupelle métallique renforce la solidité de la cupule, laquelle peut alors être perçée d'un ensemble de trous sans compromettre la solidité de l'ensemble.

[...] AN IMPLANT SCREW.

Screwable cotyle ring for hip prosthesis

THE ACETABULAR COMPONENT OF A HIP PROSTHESIS, FOR IMPLANTATION WITHOUT CEMENT

METALLIC ACETABULUM FOR HIP JOINT PROSTHESIS.

Cup-type artificial joint - has cup with external metal and internal plastic portions fixed together

Ring for acetabular implant

METHOD FOR SECURING A STENT IN A CAVITY IN BONE BY MEANS OF A MINERAL CEMENT

TOGETHER Of ELEMENTS FOR the CONSTITUTION Of a TOTAL PROSTHESIS OF the HIP

Cet ensemble comprend une tige fémorale (2) et différents cols interchangeables (3) comprenant chacun une collerette de calage (20) munie de saillies radiales, destinée à être engagée dans une cavité d'assemblage (9). Selon l'invention, la collerette (20) est dépourvue de saillies radiales et présente une forme sensiblement arrondie au niveau de sa partie (20a) se trouvant, après montage du col, sur le côté intérieur de la prothèse, et la paroi (8) de la tige délimitant la cavité d'assemblage (9) sur ce même côté intérieur de la prothèse présente une face interne (8a) de forme sensiblement arrondie, complémentaire de celle de ladite partie (20a) de la collerette. Un élément cotyloïdien dont la coiffe comprend des saillies d'accrochage est également décrit.

Device for separating cup bottom frame from acetabular prosthesis consists of hemispherical crosspiece with number of identical thickness arms equal to number of frame arms and fitted with anchoring system to frame

Dispositif destiné à éviter tout contact entre l'armature pour fond de cotyle (1 ) et la prothèse acétabulaire (2) et d'orienter la prothèse acétabulaire à l'intérieur de l'armature pour fond de cotyle (9) (10). L'invention concerne un dispositif venant en interface entre l'armature pour fond de cotyle et la prothèse acétabulaire et isolant l'armature pour fond de cotyle et la prothèse acétabulaire, évitant de ce fait toute friction ou contact entre l'armature pour fond de cotyle et la prothèse acétabulaire. Le dispositif est constitué d'un croisillon (3) de forme sensiblement hémisphérique dont le nombre de bras est égal au nombre de bras (4) de l'armature pour fond de cotyle et équipé d'un système d'ancrage (6) spécifique favorisant la solidarisation entre le croisillon et l'armature pour fond de cotyle (5). Le dispositif existe dans des tailles différentes afin de correspondre aux différentes tailles d'armature pour fond de cotyle. La congruence et l'encombrement sont optimaux entre ...

Cup for acetabular implantation, and hip prosthesis comprising this cup

La cupule métallique pour implantation cotyloïdienne dont la surface supérieure (2) est de forme généra1e sphérique (7) et est munie d'une pluralité d'orifices (3) pour le passage de vis est caractérisée par le fait que la surface sphérique supérieure (7) est interrompue avant le plan équatorial et est prolongée par une partie conique (6), permettant un ancrage à force dans la cavité cotyloïdienne.

Total hip prosthesis

Total hip prosthesis (type C.B.II)

Implаnt соtуlоïdiеn pеrfесtiоnné.

Implаnt соtуlоïdiеn соmprеnаnt еn соmbinаisоn unе сupulе (1) sеnsiblеmеnt hémisphériquе аdаptéе pоur êtrе impасtéе dаns unе саvité соtуlоïdiеnnе (2) еt dаns lаquеllе еst ménаgéе unе fеntе méridiеnnе (6), еt unе соupеllе hémisphériquе métаlliquе rigidе (4), inintеrrоmpuе, dе diаmètrе légèrеmеnt supériеur à сеlui dе lа сupulе, dаns lаquеllе lаditе соupеllе pеut êtrе intrоduitе pаr éсаrtеmеnt dе lèvrеs (6а) délimitаnt lа fеntе; lа соupеllе еst mаintеnuе dаns unе оriеntаtiоn détеrminéе pаr rаppоrt à lа сupulе pаr un sеrrаgе élаstiquе ехеrсé sur lа сupulе pаr lа соupеllе, се qui éсаrtе lеs risquеs dе luхаtiоn; dе plus lа соupеllе métаlliquе rеnfоrсе lа sоlidité dе lа сupulе, lаquеllе pеut аlоrs êtrе pеrçéе d'un еnsеmblе dе trоus sаns соmprоmеttrе lа sоlidité dе l'еnsеmblе.

ARTICULAR PART Of a PROSTHESIS OF HIP WITH TRAP HAS PARTICLES

ARTICULAR PART Of a PROSTHESIS OF HIP WITH TRAP HAS PARTICLES

ARTICULAR PART Of a PROSTHESIS OF HIP WITH TRAP HAS PARTICLES

ARTICULAR PART Of a PROSTHESIS OF HIP WITH TRAP HAS PARTICLES

ARTICULAR PART Of a PROSTHESIS OF HIP WITH TRAP HAS PARTICLES

ARTICULAR PART Of a PROSTHESIS OF HIP WITH TRAP HAS PARTICLES

METHODS AND DEVICES FOR UTILIZING BONDABLE MATERIALS

The invention primarily relates to fastening and stabilizing tissues, implants, and/or bondable materials, such as the fastening of a tissue and/or implant to a bondable material, the fastening of an implant to tissue, and/or the fastening of an implant to another implant. This may involve using an energy source to bond and/or mechanically to stabilize a tissue, an implant, a bondable material, and/or other biocompatible material. The invention may also relate to the use of an energy source to remove and/or install an implant and/or bondable material or to facilitate solidification and/or polymerization of bondable material.

ACETABULAR IMPLANT AND METHOD FOR THE PRODUCTION OF SAID IMPLANT

A cotyloid implant comprising a screwable cup receiving an articular insert. The cup is provided with screwing means (11) on the periphery thereof and more particularly in the equatorial area (2) thereof, said means being used to penetrate the bone material of the acetabular cup during screwing. The cup includes an osteointegration-facilitating coating such as a selective calcium hydroxyapatite coating. The invention is characterized in that the coating (16) is a thick coating on the convex parts of the outer surface of the cup, including areas or valleys or hollow thread elements which are left free in the screwing means. The coating is not as thick (17) or is even absent on raised areas or screw thread areas.

Acetabular cup fixation

An acetabular cup system includes an acetabular cup having a wall with an inner surface and an outer surface. The acetabular cup includes a fixation opening through the wall, the fixation opening including a first wall portion adjacent to the inner surface and a second wall portion adjacent to the outer surface. The acetabular cup system also includes a fixation fastener including a head and a shaft with a bone-anchoring portion. The fastener can be inserted though the fixation opening. The head includes a first head portion engageable with the first wall portion and a second head portion engageable with the second wall portion.

Prosthetic implant support structure

A prosthetic system that includes a prosthetic implant and a support structure secured to an inner surface of a cavity of a bone is disclosed. The support structure defines a channel that extends through the length of the support structure. The prosthetic implant is received in the channel, and a portion of the prosthetic implant is secured to an inner surface of the support structure by an adhesive. The support structure may comprise a pair of partially hemispherical components arranged in spaced apart relationship thereby defining the channel between the pair of components.

Joint replacement implant

An implant for one of partial and total replacement of an articulating joint between a first bone and a second bone. The implant has a joint component implant including a body and a head, the body including a first region spaced from the head and a second region proximate the head, the head including a convex bearing surface. At least a portion of the first region has a textured surface, the textured surface constructed of a foam metal material that is configured to promote bone in-growth into the textured surface, the body constructed of a metallic material and configured for attaching to the first bone, the first region tapering from a proximal end adjacent the second region toward a distal end.

Modular screw apparatus and method

An orthopedic instrument comprises a shell configured to be inserted into a cup-shaped site, a liner configured to be received within a cavity of the shell, wherein the liner has an aperture and a mating feature adjacent to the aperture, and a modular screw configured to be received within the aperture of the liner. The modular screw can include a first component that is positionable adjacent to a first side of the mating feature and a second component that is positionable adjacent to a second side of the mating feature. When assembled, the modular screw can be configured to rotate relative to the liner.

Methods of securing a fastener

Embodiments may include an attachable fastener, which may include a bondable material that may be secured to the end of an end effector. Vibration may be tuned to occur at a distal end of the fastener. Accordingly, the fastener may be used to generate heat at a distal point of contact. If the contact surface contains bondable material, that material may be softened. If the fastener includes bondable material at the point of contact, that material may also be softened by heat produced by vibration at the contact area. A hard implant or another polymeric material may function as the anvil.

Method and apparatus for hip replacement

Methods and apparatus for orthopedic replacement of the hip through three incisions with a modular prosthetic system assembled in vivo while substantially preserving muscles and soft tissues around the hip joint resulting in reduced healing time and decreased risk of dislocation. A prosthetic femoral stem is inserted into the femur. A prosthetic femoral neck is inserted from a point along the side of the patient's body and into the side of the femur and through a lateral bore in the prosthetic femoral stem to join the prosthetic femoral head. The methods and apparatus include structures and techniques for fixing or enhancing interconnection of implant components, such as by increasing the interconnection in an interference fit with one or more tapers, threads, and/or cooling of components prior to assembly.

Method and Devices for Intracorporeal Bonding of Implants with Thermal Energy

A system for dynamically controlling a weld profile includes a generator, and end effector, a sensor, and a computer. The generator is configured to supply energy based on the weld profile. The end effector operatively connected to the generator and configured to apply vibratory energy and pressure to an object. The sensor configured to provide an output with respect to the object. The computer configured to monitor the output and change the weld profile of the generator based on the output.

METHODS FOR ROBOTIC SURGERY USING A CANNULA

Methods for preparing a bone in surgery using an imaging system, a navigation system having a locating device, and a robotic system having a cutting tool. A cannula is guided into an incision to expand the incision and provide access to the bone so that the cutting tool is insertable through the cannula to remove material from the bone. An implant is insertable through the cannula to be placed in the bone. 1. A method of preparing a bone in surgery using an imaging system , a navigation system having a locating device , and a robotic system having a cutting tool , said method comprising the steps of:generating intraoperative images of a bone of a patient with the imaging system;tracking a position of the bone during the surgical procedure with the locating device coupled to the patient;providing the robotic system with positional information from the navigation system as to a position of the cutting tool relative to the position of the bone;effecting movement of the cutting tool with the robotic system based on the positional information from the navigation system; andguiding a cannula into an incision to expand the incision and provide access to the bone so that the cutting tool is insertable through the cannula to remove material from the bone and an implant is insertable through the cannula to be placed in the bone.2. The method of claim 1 , further comprising monitoring with the navigation system a location of the cannula inserted through the incision.3. The method of claim 1 , further comprising effecting the movement of the cutting tool with the robotic system while the cutting tool removes the material from the bone.4. The method of claim 1 , further comprising arranging the navigation system to separately track the position of the bone and monitor a location of the cannula.5. The method of claim 1 , further comprising monitoring with the navigation system a location of a guide wire within the cannula and inserted into the bone of the patient.6. The method of ...

Method and device for joint replacement

A joint replacement device is provided that includes an inner surface configured to accommodate at least one of a portion of an outer surface of a femoral head of a femur and a prosthetic secured to the femoral head, an outer surface configured to accommodate at least one of a portion of an outer surface of an acetabulum socket and a prosthetic secured to a pelvis, wherein the inner surface and outer surface each have a circular curvilinear shape and together include an inner perimeter and an outer perimeter, and wherein the inner perimeter is joined to the outer perimeter to form a posterior limb and an anterior limb, and further including, a posterior portion, an anterior portion, and a superior portion formed from the inner surface and the outer surface; wherein the superior portion further includes a posterior superior portion and an anterior superior portion.

THREADED AUGMENTABLE ACETABULAR SHELL WITH AUGMENTS

An acetabular prosthesis is described that includes a shell having an outer surface and an inner surface, the outer surface defining an external shape. There is at least one through bore extending from the outer surface of the shell to the inner surface of the shell. At least one augment is configured to be positioned at least partially within the at least one through bore of the shell such that, in an assembled state, the shell and the at least one augment define a modified external shape. 116-. (canceled)17. A method for making an acetabular prosthesis , the method comprising:providing or obtaining a shell having an outer surface and an inner surface, the outer surface defining an external shape, and a plurality of through bores extending from the outer surface of the shell to the inner surface of the shell;providing or obtaining a plurality of augments of varying sizes or types that are configured to be positioned at least partially within and be attached to the plurality of through bores; andselecting at least one of the plurality of augments to position within at least one of the plurality of through bores in order to form a modified external shape.18. The method of claim 17 , wherein the at least one of the plurality of augments includes at least one through hole extending from an inner surface of the augment to an outer surface of the augment that is configured for receiving a bone fixation member.19. The method of claim 17 , further comprising:positioning the at least one of the plurality of augments within the at least one of the plurality of through bores.20. The method of claim 19 , further comprising:adjusting the at least one augment along a longitudinal axis of the at least one of the plurality of through bores of the shell in order to change an amount that the at least one augment extends beyond the outer surface of the shell.21. A method for assembling an acetabular prosthesis claim 19 , the method comprising:providing or obtaining an acetabular ...

Methods and Devices for Utilizing Bondable Materials

The invention primarily relates to fastening and stabilizing tissues, implants, and/or bondable materials, such as the fastening of a tissue and/or implant to a bondable material, the fastening of an implant to tissue, and/or the fastening of an implant to another implant. This may involve using an energy source to bond and/or mechanically to stabilize a tissue, an implant, a bondable material, and/or other biocompatible material. The invention may also relate to the use of an energy source to remove and/or install an implant and/or bondable material or to facilitate solidification and/or polymerization of bondable material.

Systems and methods for ligament balancing in robotic surgery

Systems and methods for ligament balancing during robotic surgery. One or more transducers are positioned within a knee joint to detect forces indicative of tension in ligaments and to provide output based on the detected forces. A distraction device is used to provide a distraction force to cause movement of a distal end portion of a femur relative to a proximal end portion of a tibia to increase tension in the ligaments. Information associated with output from the transducers is displayed for viewing.

System and method for assisting with attachment of a stock implant to a patient tissue

A guide for assisting with attachment of a stock prosthetic implant to a patient tissue includes a lower guide surface configured to contact an upper implant surface of the stock prosthetic implant when a lower implant surface of the stock prosthetic implant contacts the patient tissue. An upper guide surface is accessible to a user when the lower guide surface is in contact with the upper implant surface. At least one guiding aperture extends through the guide body between the upper and lower guide surfaces at a predetermined aperture location with respect to the guide body and defines a predetermined target trajectory through the guide body. At least one of the target trajectory and the aperture location of each guiding aperture is preselected responsive to preoperative imaging of the patient tissue. A method of assisting with attachment of a stock prosthetic implant to a patient tissue is also provided.

Flexible acetabular implant

An acetabular cage or device is disclosed. In one embodiment, the acetabular cage includes a cup portion configured for implantation in an acetabulum and a flange extending from the cup portion. The flange including a first, bone contacting surface configured to face bony tissue surrounding the acetabulum when the cup portion is implanted into the acetabulum and a second, top surface opposite the first surface. The flange includes a flexible portion and a fixation portion, the fixation portion including one or more fixation features configured to facilitate fixation of the flange to the bony tissue surrounding the acetabulum. The flexible portion is arranged and configured to enable the flange, and hence the fixation portion, to move relative to the cup portion to facilitate placement of the flange relative to the bony tissue.

Instruments for setting acetabular cup

A cup and a temporary insert are respectively configured to be tightly press fitted into each other along their periphery. The temporary insert includes a through hole communicating outside with a free space between the outer surface of the temporary insert and the inner surface of the cup. In the through hole can be engaged the threaded end of an impactor. for manipulating the cup when it is being set. A syringe can be engaged, enabling a liquid under pressure to be injected into the free space, thus separating the temporary insert from the cup without any risk of damaging the inner surface of the cup. Thus, the cup can be securely manipulated when it is being set without any risk of damaging the inner surface of the cup.

Cup impactor

A cup impactor ( 1, 1′, 1″ ) is provided, adapted to assist a surgeon in controlling implantation of a cup prosthesis ( 9 ). The impactor has an impactor body ( 8 ), a drive train assembly ( 71 ), an impactor nose ( 38 ), and a clamping handle ( 5 ). The impactor body ( 8 ) has on its proximal end, an impaction plate ( 7 ) connected thereto, and an impactor handle ( 6 ) formed thereon for handling by the surgeon and, on the distal end, an impactor cup support portion ( 8 a ) having a receiver recess ( 8 b ) therein. A drive train assembly ( 71 ) has a prosthesis engaging interface ( 11 ) at a distal end thereof, and a proximal end on which a positioning knob ( 2 ) is formed. The assembly ( 71 ) received and rotatably mounted in the receiver recess ( 8 b ) of the body ( 8 ) so as to expose the prosthesis engaging surface ( 11 ). An impactor nose ( 38 ) mounts on the distal end of the impactor body ( 8 ), through which the prosthesis engaging interface ( 11 ) extends. A clamping handle ( 5 ) pulls distal portion of the drive train assembly ( 71 ) and therefore any cup prosthesis ( 9 ) attached to the engaging interface ( 11 ) against the impactor nose ( 38 ) so as not to strain the proximal end of the drive train assembly ( 71 ).

Drill guide for acetabular cup fasteners

When an acetabular cup used in hip replacement surgery is to be affixed to the acetabulum using screws, the drill guide instruments of the invention are used to position a drill bit so that the screw holes drilled in the acetabulum are properly placed for optimum implantation of the acetabular cup. The drill guide is locked into the acetabular cup by spring loaded pins which position the guide over holes in the cup which accommodate the screws. The guide is used to position the drill bits and allow drilling. After drilling the guide is removed.

Implants with groove patterns and soft tissue attachment features

An orthopaedic implant includes an implant body comprising a biocompatible material and configured to be implanted at an anatomical location, the implant body defining a surface; and a porous material at least one of attached to and integral with the surface of the implant body, the porous material having a plurality of grooves formed therein.

CERAMIC BALL SOCKET INSERT HAVING AN 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. 19-. (canceled)10. A hip-joint prosthesis comprising:a socket insert having a pole and a hip socket, said hip socket having a base;a guide pin arranged on the pole of the socket insert; andan opening at the base of the hip socket;wherein in the installed state of the socket insert in the hip socket the guide pin is located in the opening;wherein the bucket insert consists of a ceramic material;wherein the guide pin is formed so that it tapers in an inverse-conical manner,wherein at the end facing the pole the diameter of the guide pin is smaller than at the end of the guide pin that faces away from the pole;wherein in the guide pin has rounded edges; andwherein that the opening is a guide bore.11. A hip-joint prosthesis according to claim 10 , whereinthe guide bore is formed so that it tapers in an inverse-conical manner; andwherein at the end facing the interior or base of the hip socket the diameter of the guide bore is smaller than at the end of the guide bore that faces away from the interior.12. A hip-joint prosthesis according to claim 10 , whereinthe guide bore is cylindrical.13. A hip-joint prosthesis according to claim 10 , wherein theguide bore comprises two sections, andwherein in the first section the guide bore is cylindrical and in the second section it is formed so that it tapers in an inverse-conical manner.14. A hip-joint prosthesis according to claim 11 , wherein theguide bore consists of two sections, andwherein in the first section the guide bore is cylindrical and in the second section it is formed so that it tapers in an inverse-conical manner.15. A hip-joint prosthesis according to claim 13 , whereinthe first section is arranged at the end of ...

IMPLANTS WITH GROOVE PATTERNS AND SOFT TISSUE ATTACHMENT FEATURES

An orthopaedic implant includes: an implant body including a biocompatible material and configured to be implanted at an anatomical location, the implant body defining an attachment region on an outer surface of the implant body; and an adjustable holder attached to the implant body and having a compression surface facing the attachment region. The adjustable holder is configured to be implanted at the anatomical location with the implant body and adjustably compress at least one of a soft tissue or a graft material between the compression surface and the attachment region.

PATIENT-SPECIFIC PELVIC IMPLANTS FOR ACETABULAR RECONSTRUCTION

A pelvic implant includes a first surface including a recess configured for receiving a portion of a flange of an acetabular cage and a patient-specific second surface opposite to the first surface. The patient-specific second surface is preoperatively configured from a three-dimensional digital image of a pelvis of a patient to mate and closely conform to a corresponding surface of the pelvis under the flange in only one position. 1. A pelvic implant system comprising:an acetabular cage implantable into a pelvis of a patient; the acetabular cage including an acetabular cup, and an iliac flange and an ischial flange coupled to an upper portion of the acetabular cup; andan iliac spacer and an ischial spacer, wherein each of the iliac and ischial spacers comprises first and second opposing surfaces, and a peripheral surface located between and to space apart the first and second surfaces to provide at least one of the iliac and ischial spacers with a wedge shape, wherein each of the first surfaces is shaped to receive a complementary-shaped portion of a corresponding flange of at least one flange of the iliac and ischial flanges, wherein each of the second surfaces defines a patient-specific bone-engaging surface preoperatively configured from a three-dimensional image of the pelvis to complementary mate and closely conform to a surface of the pelvis under the flange in one position.2. The pelvic implant system of claim 21 , wherein each of the peripheral surfaces includes a ridge surrounding each of the recesses that are elevated relative to each of the first surfaces.3. (canceled)4. (canceled)5. The pelvic implant system of claim 21 , wherein at least the iliac flange includes a substantially square shape or square-like shape.6. The pelvic implant system of claim 5 , wherein the recess of the iliac spacer has an elongated rectangular shape.7. The pelvic implant system of claim 5 , wherein the recess of the iliac spacer has a square shape.8. The pelvic plant system ...

Method and apparatus for total hip replacement

Methods and apparatus of the present invention provide for orthopaedic total replacement of the hip while substantially preserving muscles and soft tissues around the hip joint resulting in reduced healing time and decreased risk of dislocation following the procedure. In an exemplary embodiment, the acetabulum is prepared and fitted with a prosthetic acetabular cup 702 and a prosthetic femoral head 1102 is fitted into the prosthetic acetabular cup 702. An intramedullary rod 1502 is inserted longitudinally into the femur. A prosthetic femoral neck 3102 is then inserted from a point along the side of the patient's body and into the side of the femur and through a pre-existing lateral bore in the intramedullary rod 1502 and through the remainder of the femur to join the prosthetic femoral head 1102. The methods and apparatus include structures and techniques for fixing the prosthetic femoral neck 3102 in relation to the intramedullary rod 1502.

Apparatus and method for installing an acetabular liner on an acetabular cup

An acetabular prosthesis assembly includes an acetabular shell component and an acetabular bearing component. The shell component includes a concave inner wall having a tapered surface with multiple anti-rotation slots defined therein. The bearing component includes a convex outer wall as well as an annular flange and multiple anti-rotation keys extending radially outward from the outer wall. When the anti-rotation keys are positioned in rotational alignment with the anti-rotation slots, the flange of the bearing component is positioned in contact with the tapered surface of the shell component. When the anti-rotation keys are positioned out of rotational alignment with the anti-rotation slots, the flange is spaced apart from the tapered surface. Methods for assembling and using the acetabular prosthesis assembly are also disclosed.

Kuenstliches hueftgelenk

Patient-specific pelvic implants for acetabular reconstruction

A pelvic implant includes a first surface including a recess configured for receiving a portion of a flange of an acetabular cage and a patient-specific second surface opposite to the first surface. The patient-specific second surface is preoperatively configured from a three-dimensional digital image of a pelvis of a patient to mate and closely conform to a corresponding surface of the pelvis under the flange in only one position.

Method and apparatus for calibrating non-linear instruments

A method and apparatus for performing a calibration and navigation of a member. The member may be calibrated relative to a selected portion, such as a sensor on an instrument. The calibrated member may then be navigated with a selected system. The calibration technique can be infinitely flexible and not rigid or designed for specific components. Moreover, the calibration may occur when the member is interconnected to an end of the instrument that is non-co-axial with another end of the instrument.

Method of performing surgery

An improved method of performing surgery on a joint in a patient's body, such as a knee, includes making an incision in a knee portion of one leg while a lower portion of the one leg is extending downward from an upper portion of the one leg and while a foot connected with the lower portion of the one leg is below a support surface on which the patient is disposed. The incision is relatively short, for example, between seven and thirteen centimeters. A patella may be offset from its normal position with an inner side of the patella facing inward during cutting of a bone with a cutting tool. During cutting of the bone, one or more guide members having opposite ends which are spaced apart by a distance less than the width of an implant may be utilized to guide movement of a cutting tool.

Patient-specific pelvic implants for acetabular reconstruction

A pelvic implant includes a first surface including a recess configured for receiving a portion of a flange of an acetabular cage and a patient-specific second surface opposite to the first surface. The patient-specific second surface is preoperatively configured from a three-dimensional digital image of a pelvis of a patient to mate and closely conform to a corresponding surface of the pelvis under the flange in only one position.

Joint replacement component having a modular articulating surface

An improved method of performing surgery on a joint in a patient's body, such as a knee, includes making an incision in a knee portion of one leg while a lower portion of the one leg is extending downward from an upper portion of the one leg and while a foot connected with the lower portion of the one leg is below a support surface on which the patient is disposed. The incision is relatively short, for example, between seven and thirteen centimeters. A patella may be offset from its normal position with an inner side of the patella facing inward during cutting of a bone with a cutting tool. During cutting of the bone, one or more guide members having opposite ends which are spaced apart by a distance less than the width of an implant may be utilized to guide movement of a cutting tool.

Method of preparing bones for knee replacement surgery

A method is provided for performing knee replacement surgery on a leg of a patient. The method includes making a cut on a posterior portion of a patella, making a cut on a proximal portion of a tibia, and making a cut on the distal portion of the femur. The cut on the patella is performed before making the cuts on the tibia and femur.

Methods for detecting osteolytic conditions in the body

Methods and systems for detecting a biological response indicative of osteolysis or osteolytic pre-conditions in bone.

Implantable pedometer

An implantable pedometer for measuring the amount of joint use is disclosed. The implantable pedometer includes a sensor adapted for detecting indicators of joint usage. A counter is configured for storing count data corresponding to the number of indicators detected by the sensor and a telemetry circuit is configured for transmitting the count data outside of the body.

Method of performing surgery

An improved method of performing surgery on a joint in a patient's body, such as a knee, includes making an incision in a knee portion of one leg while a lower portion of the one leg is extending downward from an upper portion of the one leg and while a foot connected with the lower portion of the one leg is below a support surface on which the patient is disposed. The incision is relatively short, for example, between seven and thirteen centimeters. A patella may be offset from its normal position with an inner side of the patella facing inward during cutting of a bone with a cutting tool. During cutting of the bone, one or more guide members having opposite ends which are spaced apart by a distance less than the width of an implant may be utilized to guide movement of a cutting tool.

Method and apparatus for calibrating non-linear instruments

A method and apparatus for performing a calibration and navigation of a member. The member may be calibrated relative to a selected portion, such as a sensor on an instrument. The calibrated member may then be navigated with a selected system. The calibration technique can be infinitely flexible and not rigid or designed for specific components. Moreover, the calibration may occur when the member is interconnected to an end of the instrument that is non-co-axial with another end of the instrument.

Kit for an artificial joint cup, especially an acetabular cup

Instrument for introduction of an insert of an implant into the associated shell

Gradient porous implant

An implantable medical device includes a porous metal foam or foam-like structure having pores defined by metal struts or webs wherein the porous structure has directionally controlled pore characteristics. The pore characteristics controlled include one or more of the metal structure porosity, pore size, pore shape, pore size distribution and strut thickness. The pore characteristics may vary in one or more directions throughout the structure. Preferably the pore characteristics are controlled to match the porous metal structure to various mechanical and biological requirements of different regions of the structure in order to optimize aspects of the implants performance and may vary not only over the surface of the porous structure but through the depth of the porous structure. The thickness of the porous metal structure may also be modified to establish a thickness profile that optimizes mechanical and biological requirements of the implants performance. Acetabular cup embodiments of the invention are described. Various methods of manufacturing implants having directionally controlled pore characteristics are described.

Laser-produced porous structure

The present invention disclosed a method of producing a three-dimensional porous tissue in-growth structure. The method includes the steps of depositing a first layer of metal powder and scanning the first layer of metal powder with a laser beam to form a portion of a plurality of predetermined unit cells. Depositing at least one additional layer of metal powder onto a previous layer and repeating the step of scanning a laser beam for at least one of the additional layers in order to continuing forming the predetermined unit cells. The method further includes continuing the depositing and scanning steps to form a medical implant.

COTYLOIDIAN PROSTHESIS

Implantable cup for hip joint endoprostheses

Eine implantierbare Pfanne für Hüftgelenk-Endprothesen weist eine kugelschalenförmige Oberfläche und eine innere Aufnahme (19) für eine in die Pfanne einsetzbare Lagerschale auf. Zur Verankerung der Pfanne im Knochen besitzt die Oberefläche eine Struktur in Form von Pyramidenspitzen (16), die durch spanabhebendes Einarbeiten von Rechtsgewinde-Profilen und Linksgewinde-Profilen erzeugt ist. Die Profilhöhe dieser Gewindeprofile nimmt von der Eingangsebene (13) der Pfanne gegen deren Polbereich (15) hin ab. An implantable cup for hip joint end prostheses has a spherical shell-shaped surface and an inner receptacle (19) for a bearing shell that can be inserted into the cup. To anchor the socket in the bone, the surface has a structure in the form of pyramid tips (16), which is produced by machining right-hand thread profiles and left-hand thread profiles. The profile height of these thread profiles decreases from the entrance plane (13) of the socket towards its pole area (15).

Artificial acetabulum - with outer shell of ceramics and inner shell of polyethylene

Artificial acetabulum to serve as a joint prosthesis in a human hip consists of an outer shell, made of ceramics, and an inner shell, made of plastic material, pref. polyethylene. The inner shell is inserted in the outer shell and secured against rotation or axial displacement. The side wall of the outer shell has the shape of a truncated cone and has a male conical taper thread, pref. a three-start rope thread. The thread is interrupted by sawtooth-shaped cross grooves. The inside of the ceramic socket has a conical shape with a rounded undercut at the bottom into which a bead of the plastic inner shell snaps. This prosthesis has excellent safety against break and suffers little wear. It is simple to make and to implant.

Hip joint endoprosthesis cup

Porous-coated artificial joints

ABSTRACT OF THE DISCLOSURE Artificial joint prostheses (10,46) are provided whose outer surfaces (20) include a portion wherein areas of surface treatment (24,25,50,68) are interlaced with a screw thread (16,52,60). In certain embodiments, the screw thread (16,52) is interrupted by surface-treated columns (24,25,50) so as to produce an alternating pattern of threaded columns (26,48) adjacent to surface-treated columns. In other embodiments, the surface treatment is applied to the root (62) of the thread (60) so as to form a double helix structure in which the screw thread and the surface treatment follow adjacent helical paths around the outside of the prosthesis. The screw threads provide initial mechanical fixation of the prosthesis to bone and the surface treatment provides long-term fixation through bone or other tissue ingrowth and remodeling.

Threaded acetabular cup and method

An acetabular cup comprising a shell having inner and outer ends, a cavity having an outer opening at the outer end, a surface defining an inner opening at the inner end and external screw threads for threading the shell into the acetabulum and an insert having an external polar cap and a concave bearing surface of generally part spherical configuration opening at a mouth. The insert is adapted to receive a femoral head and has an overhang to reduce the likelihood of dislocation. The insert is receivable in the shell with the polar cap being received in the inner opening of the shell. Interlocking teeth on the surface of the shell and on the polar cap of the insert hold the insert in any of a plurality of different angular positions relative to the shell so that the desired angular orientation of the overhang can be obtained.

SCREW-IN HIP PAN AND METHOD FOR THE PRODUCTION THEREOF

Patent DE9014542U1

Fixation shell for receiving the cup body of an artificial acetabular cup

Process for producing a thread with a variably modifiable thread profile and preferred application of the process

Prosthetic socket for a hip joint endoprosthesis

An artificial, screwable hip joint glenoid cavity

A találmány tárgya mesterséges, becsavarható csípőízületi persely,amelynek köpenye forgástest, a köpeny külső fe- lülete a csípőízületigödörbe történő becsavarásra alkalmas önmetsző menettel van ellátva, aköpeny tengelymetszetének a menet környezetében folytonosan vagyfokozatosan változó görbületű külső határoló vonala van, a menet pediga forgástengelyre merőleges síkhoz képest dőlt menetmetszőfog-szelvénnyel és/vagy csavarodott forgácshornyokkal rendelkezik.Jellegzetessége, hogy a menetnek a forgástengely irányában változómenetemelkedése van, a menetmetsző fogak (22, 23, 24, 25, 26) a köpenytengelymetszetében a forgástengely irányától eltérő, kijelölt iránybanegyenletesen vannak kiosztva, a kijelölt irányban kiosztott egyesmenetmetsző fogak (22, 23, 24, 25, 26) megfelelő menetoldalaiegymással párhuzamosak, a menet pedig ezáltal az igénybevételekkétoldali egyenletes felvételére alkalmas menetmetsző fogakra (22, 23,24, 25, 26) van szakaszolva. ŕ FIELD OF THE INVENTION The invention relates to an artificial, screwable hip joint sleeve having a rotatable body, an outer surface of the jacket having a self-tapping thread suitable for screwing into the hip joint pit, It has a pitch inclined tooth profile and / or twisted chamfer grooves. directionally spaced single-pitch teeth (22, 23, 24, 25, 26) are parallel to the respective thread side, thereby allowing the thread to be equally loaded on both sides (22, 23,24, 25, 26) is interrupted. ŕ

Artificial hip joint

髋臼假体

本发明提供了一种髋臼假体，包括髋臼杯体，髋臼杯体上设置有安装孔；紧固组件，紧固组件穿设在安装孔内；其中，紧固组件沿安装孔的孔壁可滑动地设置，以使紧固组件从安装孔内伸出的方向可调节地设置。本发明中的髋臼假体解决了现有技术中的髋臼假体与骨骼的接触不稳定的问题。

Press fit acetabular cup and associated method for securing the cup to an acetabulum

An acetabular cup and method of securing the acetabular cup to an acetabulum so as to provide a bearing surface for a head portion of a femur is provided. The acetabular cup is shaped to provide a cementless, press-fit into a reamed acetabulum. The acetabular cup is formed of a body having a sidewall defining a radius from a center point of the annular rim to the sidewall wherein the radius increases in length from the apex to said annular rim. The method of securing the acetabular cup first includes reaming the acetabulum with a reamer having a head with a radius of curvature that is less than the radius from the center point to the annular rim of the acetabular cup.

Hip joint

The acetabulum component of a hip-joint endoprothesis comprises an acetabulum cup 6, a non-metallic shell member 1 and a retaining nut 10. The shell member defines therewithin a volume 8 which is greater than hemispherical and less than spherical, having an opening around which the wall of the shell member is formed with radial slots 9. The nut 10 serves to hold the head portion of a femur shank in the volume 8 and simultaneously lock the shell member 1 in the acetabulum cup 6. In accordance with requirements, the shell member may be used with an acetabulum cup which is of self-anchoring type or to be cemented in the natural acetabulum and with a shank which is self-anchoring or to be cemented in the medullary canal of the thigh. <IMAGE>

Multiple bearing acetabular prosthesis

A prosthesis to replace a portion of the anatomy, such as the acetabulum, can include a first portion. A second prosthesis portion can be positioned relative to the shell to provide the bearing surface to articulate with a femoral head prosthesis or femoral head. The second prosthesis portion can include a connection portion to engage a connection portion in the shell.

Multiple bearing acetabular prosthesis

An acetabular prosthesis assembly can include an acetabular cup and a first liner. The acetabular cup can have an outer surface, an inner surface and an upper rim extending between the outer surface and the inner surface. The acetabular cup can have a cup connection portion including a groove formed on an upper face of the upper rim. The first liner can have an outer cup engaging surface and a liner connection portion that extends from a flange of the first liner. The liner connection portion can have a finger that is received by the groove formed on the upper face of the acetabular cup that selectively couples the liner connection portion with the cup connection portion in an assembled position.

Femoral component for a hip joint endoprosthesis

Femurkomponente (1) für eine Hüftgelenks-Endoprothese, mit einem in einer Markhöhle eines Femurknochens verankerbaren Schaft (2) und einer daran ausgebildeten Halspartie (3) mit einem Zapfen (4) zur Aufnahme eines Gelenkkopfes (8), wobei die Halspartie (3) in einem zwischen dem Zapfen (4) und dem Schaft (2) ausgebildeten Anschlagsbereich (5) einen nicht runden Querschnitt und außerhalb des Anschlagsbereichs (5) einen runden Querschnitt aufweist. femoral component (1) for a hip joint endoprosthesis, with one in a medullary cavity a femoral bone anchored shaft (2) and a trained thereon Neck part (3) with a pin (4) for receiving a condyle (8), wherein the neck part (3) in a between the pin (4) and the stopper (5) formed in the shaft (2) is not round Cross section and outside the stop region (5) has a round cross-section.

Acetabular cup assembly with selective bearing face orientation

An acetabular cup assembly includes a metal shell component and a plastic bearing insert capable of assembly interoperatively, the metal shell component first being secured in position within an acetabulum and then the plastic bearing insert being receivable within the shell component, first at a preliminary axial position for ascertainment of the circumferential position of the bearing insert and the orientation of the bearing face of the bearing insert relative to the shell component and then at a fully-seated axial position wherein the bearing insert is permanently captured in the shell component, the bearing insert being readily withdrawn from the preliminary axial position for circumferential repositioning to attain appropriate orientation of the bearing face prior to capturing the bearing insert within the shell component.

JOINT PART OF A HIP PROSTHESIS WITH PARTICLE TRAP

Hip joint prosthesis

Combination of material for joint prosthesis

An orthopaedic joint prosthesis comprises first and second articulating components having respective bearing surfaces in contact with one another. The material of the first bearing surface (14) comprises a metallic material and the material of the second bearing surface (6) comprises a ceramic material. The hardness of the metallic material is at least about 2500 MPa, and the hardness of the ceramic material is greater than that of the metallic material by at least about 4000 MPa.

Prosthetic cup assembly which includes components possessing self-locking taper

A prosthetic device, such as an acetabular cup, includes a shell, a liner and a bearing. The bearing may be coupled to the liner so as to form a bearing-liner subassembly. The shell is provided with a female taper complimentary to a male taper on the liner. The liner-bearing subassembly may be secured to the shell by engaging the complimentary tapers.

Acetabular liner extractor

A preferred embodiment of an extractor employs a pair of arms which laterally move toward each other, thereby applying compressive forces against a first prosthetic component toward a longitudinal centerline. These compressive forces, in combination with longitudinal movement of the arms in relation to a collar of the extractor, serves to easily extract the liner from the shell.

Ball-and-socket joint, particularly a prosthetic hip joint

A ball-and-socket joint has a race with bearing balls interposed between the head and the socket of the joint. The race is secured to the head. In use as a prosthetic hip joint, the formation of metallic debris is reduced or completely eliminated thus eliminating or at least reducing the occurrence of the need for corrective surgery. The hip joint is of an unconstrained type which often enables correction of an accidental dislocation of the joint without surgery.

TOTAL HIP PROSTHESIS FOR ENDO-ARTICULAR PLACEMENT AND ITS ANCILLARY DEVICE

A total hip prosthesis is disclosed. The prosthesis comprises a cotyloid implant (15) consisting of a metal cup to be anchored in the acetabulum (C), a polyethylene insert forming an intermediate implant (17) impacted into the cavity of the cup, and a femoral implant (20) consisting of a cap of which the outer convex surface is slidably positionable in the insert cavity, whereas its inner concave surface is implantable on the head (T) of the femur. Said prosthesis is particularly suitable for endo-articular implantation.

Bimetal acetabular component construct for hip joint prosthesis

This invention provides a prosthetic acetabular component that comprises two constructs, one being a metal base construct that engages the bone and the other being a polyethylene bearing construct that attaches to the metal base construct and articulates with a femoral stem prosthetic component. The metal base construct is composed of two different metals, one of which engages the bone surface and the other of which engages the polyethylene bearing construct. Each of these metals is selected so that its characteristics are well suited to its particular function. The first metal is selected so as to provide a superior bone-engaging face, while the second metal is selected so as to provide a superior polyethylene-engaging face. By combining the different material characteristics of two different metals in the metal bone construct, it is possible to simultaneously form a superior bone-engaging face and a superior polyethylene-engaging face.

Bimetal acetabular component construct for hip joint prosthesis

This invention provides a prosthetic acetabular component that comprises two constructs, one being a metal base construct that engages the bone and the other being a polyethylene bearing construct that attaches to the metal base construct and articulates with a femoral stem prosthetic component. The metal base construct is composed of two different metals, one of which engages the bone surface and the other of which engages the polyethylene bearing construct. Each of these metals is selected so that its characteristics are well suited to its particular function. The first metal is selected so as to provide a superior bone-engaging face, while the second metal is selected so as to provide a superior polyethylene-engaging face. By combining the different material characteristics of two different metals in the metal bone construct, it is possible to simultaneously form a superior bone-engaging face and a superior polyethylene-engaging face.

Method and apparatus for hip replacement

Methods and apparatus for orthopedic replacement of the hip through three incisions with a modular prosthetic system assembled in vivo while substantially preserving muscles and soft tissues around the hip joint resulting in reduced healing time and decreased risk of dislocation. A prosthetic femoral stem is inserted into the femur. A prosthetic femoral neck is inserted from a point along the side of the patient's body and into the side of the femur and through a lateral bore in the prosthetic femoral stem to join the prosthetic femoral head. The methods and apparatus include structures and techniques for fixing or enhancing interconnection of implant components, such as by increasing the interconnection in an interference fit with one or more tapers, threads, and/or cooling of components prior to assembly.

Method and apparatus for total hip replacement

Methods and apparatus of the present invention provide for orthopaedic total replacement of the hip while substantially preserving muscles and soft tissues around the hip joint resulting in reduced healing time and decreased risk of dislocation following the procedure. In an exemplary embodiment, the acetabulum is prepared and fitted with a prosthetic acetabular cup 702 and a prosthetic femoral head 1102 is fitted into the prosthetic acetabular cup 702. An intramedullary rod 1502 is inserted longitudinally into the femur. A prosthetic femoral neck 3102 is then inserted from a point along the side of the patient's body and into the side of the femur and through a pre-existing lateral bore in the intramedullary rod 1502 and through the remainder of the femur to join the prosthetic femoral head 1102. The methods and apparatus include structures and techniques for fixing the prosthetic femoral neck 3102 in relation to the intramedullary rod 1502.

Methods for detecting osteolytic conditions in the body

Methods and systems for detecting a biological response indicative of osteolysis or osteolytic pre-conditions in bone.

Acetabular cup prosthesis

The hip socket prosthesis has a spherical fixed body for healing over with the bone structure of the prosthesis carrier and with through passage holes for fixture components which can be driven into the bone structure. The inner surface of the prosthesis body has an inlay on which the femur head can slide. One or more through passage holes (13,15) of the prosthesis body are formed for accommodation of closure plugs, which seal against the through passage of blood to the inlay and can be withdrawn from the inner surface (7) of the prosthesis body. The closure plugs are of the screw type. On one through passage hole a cylindrical sunken formation is provided for a cylindrical head part of a closure plug and is provided with a thread matching that on the closure plug. <IMAGE>

Elastically deformable acetabular prosthesis.

An acetabular cup for a hip joint prosthesis

A socket (1) for a hip joint prosthesis is provided with a plurality of meridian incisions (7) which define as many segments (8) elastically flexible in a radial direction. The inner surface (5) of the socket (1) is provided with one or more grooves (14, 18) parallel to the proximal rim, wherein these grooves receive corresponding reliefs (29, 34) of a joint insert (20). The socket additionally comprises one or more frustoconical portions (13, 17) which form bearing surfaces for corresponding frustoconical portions (28, 33) of the joint insert (20). The inner surface 5 of the socket (1) bounds a polygonal seat (16) which is adapted to engage with a polygonal portion (31) of the joint insert (20) by means of a form fit.

ACETABULAR IMPLANT AND METHOD OF MANUFACTURING THE IMPLANT

Implant cotyloïdien du type comprenant une cupule à visser recevant un insert articulaire, ladite cupule présente à sa périphérie, et notamment dans sa zone équatoriale (2) des moyens de vissage (11) destinés à pénétrer dans la matière osseuse du cotyle lors du vissage, ladite cupule porte un revêtement facilitant l'ostéointégration, tel que, notamment, un revêtement d'hydroxyapatite de calcium sélectif, caractérisé en ce que le revêtement (16) est de type épais sur les parties convexes de la surface externe de la cupule, y compris dans les zones ou vallées ou creux de filets laissés libres dans les moyens de vissage, tandis que ce revêtement présente une épaisseur inférieure (17), ou est même absent, sur les reliefs ou filets de vissage.

Metal shell for cementless anchoring of an artificial acetabular cup

Endoprosthesis, esp. artificial hip joint socket, with rotationally symmetrical outer surface

Acetabular cup assembly

An acetabular prosthesis assembly for implantation into a prepared acetabulum has a generally hemispherically-shaped cup (1). The cup (1) has a substantially hemispherically-shaped inner surface (2) and a substantially hemispherically-shaped outer surface (3) defining a wall therebetween. The wall has a plurality of generally circular apertures (6, 7, 8) therein for receiving a bone screw. The wall surrounding each aperture has a bevelled surface extending toward the outer surface (3) followed by a generally cylindrical surface extending from the bevelled surface to the outer surface of the cup. The generally cylindrical surface of each aperture (6, 7, 8) is threaded with threads of predetermined diameter and pitch. A bone screw has a first screw thread having a pitch and diameter for engagement with the thread of the cylindrical surface on the cup and a second screw thread having a major diameter and a pitch greater than the predetermined diameter and pitch of the cylin­drical surface. A plastic insert for attachment to the inner surface of the cup is provided.

Hip joint prosthesis

Total hip joint prosthesis of the type comprising an acetabular implant consisting of a semispherical shell (1) comprising on its outer wall, in the part near the equator, a helical and spiralled threading, leaving free at the top of the semisphere an upper cap (19), with, on the one hand, self-tapping properties and, on the other hand, reverse self-tapping properties, thereby permitting an attack of the implantation medium for insertion and passage of the threads on the one hand in the direction of implantation and also in the direction of withdrawal. <IMAGE>

Acetabular implant and method for the production of said implant

A cotyloid implant comprising a screwable cup receiving an articular insert. The cup is provided with screwing means (11) on the periphery thereof and more particularly in the equatorial area (2) thereof, said means being used to penetrate the bone material of the acetabular cup during screwing. The cup includes an osteointegration-facilitating coating such as a selective calcium hydroxyapatite coating. The invention is characterized in that the coating (16) is a thick coating on the convex parts of the outer surface of the cup, including areas or valleys or hollow thread elements which are left free in the screwing means. The coating is not as thick (17) or is even absent on raised areas or screw thread areas.

Acetabular implant and method for the production of said implant

A cotyloid implant including a screwable cup receiving an articular insert. The cup is provided with screwing elements ( 11 ) on the periphery thereof and more particularly in the equatorial area ( 2 ) thereof, the elements being used to penetrate the bone material of the acetabular cup during screwing. The cup includes an osteointegration-facilitating coating such as a selective calcium hydroxyapatite coating. The coating ( 16 ) is a thick coating on the convex parts of the outer surface of the cup, including areas or valleys or hollow thread elements which are left free in the screwing elements. The coating is not as thick ( 17 ) on raised areas or screw thread areas.

Multi-bearing acetabular prosthesis

A prosthesis to replace a portion of the anatomy, such as the acetabulum, can include a first portion. A second prosthesis portion can be positioned relative to the shell to provide the bearing surface to articulate with a femoral head prosthesis or femoral head. The second prosthesis portion can include a connection portion to engage a connection portion in the shell.

Multiple bearing acetabular prosthesis

An acetabular prosthesis assembly can include an acetabular cup and a first liner. The acetabular cup can have an outer surface to contact a subject and an inner surface to engage the first liner. The first liner can have an outer cup engaging surface that couples with the acetabular cup in an assembled position.

Support element for an artificial acetabular cup

Acetabular cup

Inner shell for a hip joint socket

The metallic inner shell (1) is guidable into the inner hollow volume of an outer shell (2) and fastenable to the outer shell (2) with the fastening element (8). A two-part hip joint socket (3) is thus produced. To achieve this, support regions of the inner shell (1) are approximately positioned into a groove (11) of the outer shell (2) and, from there, the inner shell (1) is moved into the outer shell (2) via a pivotal movement so that the support regions completely seat into the groove (11) and the fastening element (8) adopts the position shown. The intermediate volume between the inner shell (1) and the outer shell (2) thus narrows in the direction of taper (13) so that the fastening element (8), when tightened in the direction (13), wedges itself with its head (9) between the boundary surface (1i) of the inner shell (1) and the groove (11) of the outer shell (2). Play between the inner thread (7a) and the outer thread (8a) is preferably provided so that, when the fastening element (8) is tightened, the force transmission region (9b) of the head (9) seats against the boundary surface (1i) of the inner shell (1) and the force transmission region (9a) seats against the groove (11) of the outer shell (2). The inner shell (1) thus lies wedged in the outer shell (2) due to the fact that the fastening element (8) transmits a radially oriented force between the inner shell (1) and the outer shell (2).

Cup for the cotyloid notch in a complete hip-joint endoprosthesis

The present invention pertains to the field of medical techniques and can be used in traumatology and in orthopedics for placing hip-joint endoprostheses. The present invention relates to a cup for the cotyloid notch in a complete hip-joint endoprosthesis, wherein said cup comprises a thin-wall conical ring having a self-tapping thread on its outer surface as well as an opening in its upper base. The cup also includes a conical polymeric insert tightly fitted into the ring, wherein said insert has an open hemispherical recess formed at its lower base for mounting the prosthesis head, as well as an annular protrusion that engages with a corresponding groove formed on the inner surface of the ring. The cup further includes a porous disc which is fixedly mounted on the upper base of the insert. This invention is characterised in that the upper bases of the conical ring and the disc are spherical and in that they share a common centre. The outer surface of the porous disc, which engages the bone tissue, has a radius which is either 1.01 or 1.10 times larger than the radius of the sphere of the conical ring, the pores on said outer surface being open. The pores on the opposite surface and on the lateral surface are essentially closed. The groove on the inner surface of the conical ring is formed at the smallest distance possible from the lower base thereof. This invention provides a solid fixation, good stability and anatomic properties, reduced requirements concerning the mounting precision, a strong adhesion of the whole surface of the cup to the bone tissue as well as a good bone integration.

Ceramic sandwich insert for an artificial hip joint

Die Erfindung betrifft ein Sandwich-Insert mit einer inneren Gleitschale (1) aus Keramik, die von einem Kunststoffmantel (2) umschlossen ist, zum Einsetzen in eine äußere Metallschale eines künstlichen Hüftgelenks. DOLLAR A Zur Erhöhung der Umschlagfestigkeit bei kleinem Bauraumbedarf wird vorgeschlagen, daß die Gleitschale (1) an ihrem der Öffnung abgewandten äußeren Ende einen Zapfen (3) aufweist. The invention relates to a sandwich insert with an inner sliding shell (1) made of ceramic, which is enclosed by a plastic jacket (2), for insertion into an outer metal shell of an artificial hip joint. DOLLAR A In order to increase the turnover strength with a small space requirement, it is proposed that the sliding shell (1) have a pin (3) at its outer end facing away from the opening.

Method and apparatus for aligning a taper lock connection

A prosthesis (10) for replacing a portion of the anatomy. The prosthesis can include a first body (12) extending between a first region and a second region. The first body can define a first alignment portion (21) near the first region and a first taper (28) near the second region. The prosthesis can also comprise a second body (14) extending between a third region and a fourth region. The second body can define a second alignment portion (38) near the third region and a second taper (42) near the fourth region. The first alignment portion (21) can interact with the second alignment portion (38) , and the first taper (28) and the second taper (42) can interact when the first alignment portion and second alignment portion interact.

Acetubular cup for receiving a joint endoprosthesis

Acetabular cup (1) for receiving a joint endoprosthesis, in particular a hip-joint endoprosthesis, with an outer cup (10) directed towards a hip bone, and an inner cup (20) which is at a radial distance from the outer cup and which has on its joint side an inlay (40) for the ball of the joint. Radially projecting threaded sections (12) are provided in the circumferential direction on that side of the outer cup (10) directed towards the hip bone, which threaded sections are arranged in rows (13) and are interrupted by grooves (11) extending at an angle to the thread axis and essentially transversely to the threaded sections (12), as a result of which a cutting thread is formed for screwing into the hip bone; the outer cup (10) is provided with a number of gaps in the form of elongate openings (11) distributed over the surface of the said outer cup (10), which openings connect an intermediate space (50), formed between the inner cup (20) and the outer cup (10), to the hip bone bearing on the outer cup (10), and bone substance can be introduced into the intermediate space (50) through the openings and, after implantation has been carried out, the openings permit a supply to the bone substance introduced and also permit an incorporation of new hip-bone substance. The grooves (11) are designed as elongate openings (11) extending essentially transversely to the circumferential direction and virtually over the entire height of the outer cup (10). …<IMAGE>…

Patent DE4128259C2

Inner cup for artificial hip acetabulum

Hip cup with anchoring peg

Prosthesis assembly

(57)【要約】 【課題】 延びたベアリング面を有するセラミックス物 質からなるカップ状挿入体を含むプロテーゼ組立体を提 供する。 【解決手段】 股臼シェル２の形状をなす固定要素と、 ベアリングカップ部４からなるプロテーゼ組立体。ベア リングカップ部４は、拡大部１０がある縁８を有するの で、ベアリング面での動きの範囲が増し、位置のずれの 危険が減少する。縁８の拡大部１０はカップ部挿入体４ からシェル２の平らな縁２の上をほぼ放射状に延びる。 拡大縁部１０の強度が増強されているので、拡大縁部１ ０が破裂する危険なく挿入体４はセラミック物質から形 成できる。

Lateral dual mobility assembly

Method of manufacturing external mounting surface of joint implant

Acetabular prosthesis with ring-like lock mechanism

(57)【要約】 【課題】 骨の中に移植可能な外殻構成要素と、当該外 殻構成要素に予め配置可能な係止部材と、当該係止部材 を介して外殻構成要素に整合かつ係合可能なライナー構 成要素とからなる股臼プロテーゼを提供する。 【解決手段】 上記外殻構成要素は概ね凸状の骨係合用 外側面と概ね凹状の内側面を有している。この外殻構成 要素の内側面に当該外殻構成要素の内周の少なくとも一 部分において溝が形成されている。上記ライナー構成要 素は凹状の内側面と凸状の外側面を有しており、当該凸 状の外側面は外殻構成要素の内側面に対して相補的かつ 整合可能な形状を有している。上記係止部材に１個以上 の変形可能なタブが形成されており、当該タブを介して ライナー構成要素が外殻構成要素の中に固定可能とな る。この場合、ライナー構成要素を外殻構成要素の中に 押圧嵌合してこれらを一体接合することにより、係止部 材がライナー構成要素の表面に起立する１個以上の隆起 部に係合する。