Разборный искусственный тазобедренный сустав

Verankerungsschale einer Hüftgelenkspfanne

Längliche Hüftgelenkpfanne

Hüftgelenkprothese

HUEFTKOPF-ENDOPROTHESE

Hip replacement joint

The hip replacement joint has an outer support shell (1) which is fused to the bone structure and a separate inner shell (2) which forms the socket for the hip joint. The inner shell is located in the outer shell via two conical taper profiles, with the slope of the outer taper of the inner shell steeper than that of the inner taper of the outer shell. This ensures that the contact region (4) is nearer to the support structure of the outer shell. The tapers are between 18 deg and 20 deg with the arc difference between the tapers between 0' and 20'. The outer shell has one or more recesses (10) into which a tool can be placed to prise the inner shell away from the outer shell, for replacement.

Gelenkpfanne für die Hüfte

Gelenkpfanne für ein künstliches Hüftgelenk

MODULARE PROTHETISCHE GELENKPFANNE

Hüftgelenkprothese

Verbindungsstift für mehrteiliges orthopädisches Implantat

Device for fixing implant to bone

The device has three main parts. It has a main screw (6) which has rounded head (8) with a hexagonal socket in it. The screw passes through a separate lower part and the underside of the screw head seats in a hole in the lower part. The rounded underside of the screw head matches the shape of the hole in the lower part so that a good fit occurs. On the side wall of the hole is a cylindrical section which has an internal thread. A separate top section to the implant has a corresponding internal thread which fits into the thread in the hole section and a hexagonal socket head.

Halterungssysteme für Hüftpfannen-Endoprothesen

Hip prosthesis with femoral component and corresponding cotyloid element with high implantation adaptability

HIP JOINT ENDOPROSTHESIS

Modular acetabular cup prosthesis

Eine modulare Hüftpfannenprothese (1, 2, 3, 4, 5) umfasst eine Hüftpfanne (10, 20) und ein mit der Hüftpfanne (10, 20) verbindbares Augment (40, 50, 60, 70). Die Hüftpfanne (10, 20) weist einen Polbereich (13a) und einen gegenüberliegenden Eingangsbereich (15, 25) mit einem Umfangsrand (16, 26) auf. Das Augment (40, 50, 60, 70) weist eine ringförmige Basis (41, 51, 61, 71) auf, von der sich zumindest ein Fortsatz (42, 52, 54, 62, 72) erstreckt. Der Umfangsrand (16, 26) der Hüftpfanne (10, 20) und die ringförmige Basis (41, 51, 61, 71) des Augments (40, 50, 60, 70) sind mit zueinander komplementären Schraubgewinden (18, 28; 43, 53, 63, 73) versehen. Die zueinander komplementären Schraubgewinde (18, 28; 43, 53, 63, 73) der Hüftpfanne (10, 20) und des Augments (40, 50, 60, 70) sind mit einer Verdrehsicherung ausgestattet, die im verbundenen Zustand der Hüftpfanne (10, 20) und des Augments (40, 50, 60, 70) eine relative Verdrehung der Hüftpfanne (10, 20) und des Augments (40, 50, 60, 70) verhindert ...

MODULAR PROTHETI GELENKPFANNE

HIP JOINT PAN PROSTHESIS WITH ANCHORAGE PINS

TWO-PIECE HUEFTGELENKSPFANNE.

HIP JOINT PAN.

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

KUENSTLICHE HUEFTGELENKPFANNE.

PAN FOR A JOINT ENDOPROSTHESIS.

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

INTERIOR BOWL FOR A HIP JOINT PAN

CALIBRATION EQUIPMENT AND DRILLING TEMPLATE FOR HUEFTGELENKPFANNEN.

DOUBLESHELLED REVISION HIP JOINT PAN

ARTIFICIAL HIP JOINT PAN

IMPLANT FROM PLASTIC WITH METAL NET

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

PAN FOR A JOINT ENDOPROSTHESIS

ARTIFICIAL HIP JOINT PAN AS WELL AS PROCEDURE FOR THE PRODUCTION

SPHERICAL HIP JOINT PAN

GELENKPFANNE

HIP JOINT PAN RING PROSTHESIS WITH REINFORCEMENT SUPPORT

GELENKPFANNE FOR HÜFTPROTHESEN

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

Interlocking acetabular fixation screws and their combination with a reverse hip acetabular cup

Interlocking acetabular fixation screws having a threaded shaft for threading into cancellous bone and a tapered threaded head for threading into tapered threaded screw holes in a reverse hip acetabular cup. The reverse hip acetabular cup has a central stem and the threaded screw holes are drilled at an angle that allows drilling of the bone of the acetabular cavity, placement of the screws and tightening of the screws without touching the central stem and without interference from the central stem.

Acetabular component with removable screw hole plugs

Oblong acetabular cup

IMPLANT WITH RESORBABLE STEM

IMPLANT WITH RESORBABLE STEM This invention relates to a biodegradable anchor for a permanent implant of a bone joint, e.g. hip, shoulder, knee or finger. The biodegradable anchor is an elongated member which has an exterior surface which tightly engages a cavity in the bone and is substantially immovable within the cavity upon implant. A non-resorb-able means of securing the anchor to the permanent implant is also included.

ACETABULUM SIZER AND DRILL GUIDE

LASER-PRODUCED POROUS SURFACE

A method of forming an implant having a porous tissue ingrowth structure and a bearing support structure. The method includes depositing a first layer of a metal powder onto a substrate, scanning a laser beam over the powder so as to sinter the metal powder at predetermined locations, depositing at least one layer of the metal powder onto the first layer and repeating the scanning of the laser beam.

COAXIAL FULLY ARTICULATING JOINT

An orthopedic prosthesis includes a proximal member (11) which internally accommodates the major motion of a patient, e.g., during walking, thereby reducing wear against a cup or liner (4000). A distal member (12) may be utilized which rotates within the distal member about an axis aligned with the major motion of the patient. The orthopedic prosthesis may also include a head (100) and neck (200), the neck being rotatably mounted within the head, the head being rotatably mounted within the acetabulum region of a patient.

LASER-PRODUCED POROUS SURFACE

A method of forming an implant having a porous tissue ingrowth structure and a bearing support structure. The method includes depositing a first layer of a metal powder onto a substrate, scanning a laser beam over the powder so as to sinter the metal powder at predetermined locations, depositing at least one layer of the metal powder onto the first layer and repeating the scanning of the laser beam.

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.

SPHERICAL HIP JOINT SOCKET

The invention relates to a hip joint socket for insertion into bone tissue, with an outer metal shell and an inner ceramic shell, the ceramic shell being anchored in the metal shell. To reduce its size while simultaneously reducing the wall thickness of the ceramic shell the inside of the metal shell and the outside of the ceramic shell have a spherical shape accurately fitted to one another and means are disposed for equalizing the transmission of force between the ceramic shell and the metal shell.

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.

CUP

The invention relates to a cup-shaped member for a hip joint prosthesis, for implantation into a cavity in the bone tissue in the acetabulum, comprising an acetabular cup (1) made of metal, a ceramic material or any other suitable material, preferably of titanium, the outside of said cup being rotationally symmetrical around a central axis of symmetry. The outer side o f the cup (1), that is the side which is to face the bone tissue, is provided with at least one circumferential bead (5) close to the edge of the cup (1), said bead (5) having a barb-like shape in section a nd consequently allowing the cup (1) to be pushed into said cavity but counteracting the removal of said cup (1) from said cavity, said outer side including said bead(s) (5) being provided with a rou gh structure serving as a file when said cup (1) is moved or rotated in said cavity.

ACETABULAR CUP FOR A TOTAL HIP PROSTHESIS AND TOTAL HIP PROSTHESES EMBODYING SUCH CUPS

An acetabular cup for a total hip prosthesis including an outer backing and an inner bearing component, in which said backing comprises a part-spherical main portion and two independent arms projecting therefrom and which are separated from each other.

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.

PRIMARY AXIS PROSTHETIC JOINT DESIGN

An artificial joint for implantation into a subject's body is provided which includes an outer race (10) coupled with fixation means (50) to anchor the outer race (10) within an existing joint socket. An inner race member (30) seats within the outer race (10) and a first bearing member (21) is juxtaposed therebetween. The first bearing member (21) has its normal axis closely coincident with a center of rotation that is normal to an axis of most frequent movement of the joint. The bearing component (21) is installed in an alignement that supports loads on a primary axis. A second bearing member (22) may be provided between the inner (30) and outer race (10) members which constrains forces generated during use of the joint and centers forces onto the first bearing member (21).

Künstliche Gelenkpfanne

KUENSTLICHES HUEFTGELENK.

TOTAL HIP JOINT ENDOPROSTHESIS.

Cement-less hip socket prosthesis - has horizontal knife edges protruding from polar area and extending downwards

The internal hip joint socket prosthesis can be anchored without cement. It comprises an inner body and an external dish divided into a polygon by meridional cuts, its polar area being parallel to the equator. The polygon comprises two cones (10,16) of different angles to the axis (17). Horizontal knife edges (9) protrude from the polar area (3) at intervals round the periphery and are bent over to extend to the end of the cone (10) adjacent to this area. USE - Can be driven straight into the pelvis without turning, thus reducing injury to the bone and aiding growth of tissue against and round it.

ARTIFICIAL HIP JOINT PAN.

TWO-PIECE HIP JOINT PAN.

FROM PLASTIC EXISTING GELENKPFANNE.

HIP JOINT PAN.

Outer shell of a hip joint endoprosthesis.

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.

HALFSPHERICAL, KUENSTLICHE HIP JOINT PAN.

KUENSTLICHE HIP JOINT PAN.

GELENKPFANNE TO HUEFTGELENKPROTHESE.

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.

Universal Cotile for hip prosthesis.

È descritto un cotile modulare per protesi danca (1) comprendete uno o più appendici (2) per il suo fissaggio nella cavità ossea acetabolare, detto cotile (1) presenta una pluralità di fori passanti (4) ricavati nel suo corpo sostanzialmente semi-sferico, detto fori hanno tra loro differenti inclinazioni (, ) rispetto allequatore (E).

Modular acetabular cup prosthesis.

Eine modulare Hüftpfannenprothese (1, 2, 3, 4, 5) umfasst eine Hüftpfanne (10, 20) und ein mit der Hüftpfanne (10, 20) verbindbares Augment (40, 50, 60, 70). Die Hüftpfanne (10, 20) weist einen Polbereich (13a) und einen gegenüberliegenden Eingangsbereich (15, 25) mit einem Umfangsrand (16, 26) auf. Das Augment (40, 50, 60, 70) weist eine ringförmige Basis (41, 51, 61, 71) auf, von der sich zumindest ein Fortsatz (42, 52, 54, 62, 72) erstreckt. Der Umfangsrand (16, 26) der Hüftpfanne (10, 20) und die ringförmige Basis (41, 51, 61, 71) des Augments (40, 50, 60, 70) sind mit zueinander komplementären Schraubgewinden (18, 28; 43, 53, 63, 73) versehen. Die zueinander komplementären Schraubgewinde (18, 28; 43, 53, 63, 73) der Hüftpfanne (10, 20) und des Augments (40, 50, 60, 70) sind mit einer Verdrehsicherung ausgestattet, die im verbundenen Zustand der Hüftpfanne (10, 20) und des Augments (40, 50, 60, 70) eine relative Verdrehung der Hüftpfanne (10, 20) und des Augments (40, 50, 60, 70) verhindert ...

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.

Cotylar cup without cement for hip joint replacement prosthesis

Cotyle sans ciment pour prothèse totale de hanche, comprenant une cupule métallique (10) de forme hémisphérique, implantable par impaction dans l'acétabulum d'un patient.Selon l'invention, ladite cupule (10) est munie en partie polaire (P) d'une couronne (20) amovible présentant un bord tranchant (21) destiné à pénétrer dans le fond de l'acétabulum lors de l'impaction.Application aux cotyles pour prothèses totales de hanche sans ciment.

[...] AN IMPLANT SCREW.

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

PROSTHESIS OF HIP

SURGE COTYLOIDE FOR PROSTHESES OF HIP, IN PARTICULAR FOR SETTING IN PLACESANS CEMENT

Metal acetabular cup edge stiffener with degressive in double radius of curvature [...] depressions in strengthening area.

IMPLANT COTYLOIDIEN FOR PROSTHESIS OF HIP

CUP COTYLOIDIENNE FOR TOTAL PROSTHESIS OF THE HIP

Dispositif de fixation d'une piece sur un support notamment d'un implant sur un os

L'invention concerne un dispositif de solidarisation d'une piece 10 sur un support 12 a l'aide d'au moins une vis de fixation 14 comportant une tete 18 et une tige 16 filetee, vissee dans la matiere constituant le support, cette piece comprenant un passage 34 a travers lequel passe la tige de la vis et une surface d'appui pour la tete de la vis, qui se caracterise en ce qu'il comprend un moyen supplementaire de blocage 46 cooperant avec des moyens complementaires prevus dans la piece pour bloquer la tete de la vis par rapport a ladite piece. Application notamment a la fixation d'implants sur des os.

Prosthesis cup, especially for hips

Cupule de prothèse, notamment de hanche, constituée en deux parties, à savoir: . une cupule métallique de soutien (1), destinée à être solidarisée à l'os de l'articulation à renforcer ou à remplacer, dont la face externe (3) présente des filets (5) hélicoïdaux de vissage, . une cupule de frottement en matière plastique, insérée dans la cupule métallique (1) dont la face interne est demi-sphérique, pour recevoir la tête de la tige de prothèse, caractérisée en ce que la face interne (2) de la cupule métallique (1) présente des orifices traversants (11-15) débouchant sur la face externe (3), destinés à recevoir des vis de fixation dans l'os à renforcer ou à remplacer.

METALLIC ACETABULUM FOR HIP JOINT PROSTHESIS.

Cup for cotyloidal implant, has tapered part and recess cooperating with outer and inner surfaces of different types of inserts by friction and by detent, respectively, where cap is made of osteo-conductor metal such as titanium alloy

La cupule (2) est de forme sensiblement hémisphérique et destinée à être fixée dans une cavité cotyloïdienne, la cupule délimitant une cavité intérieure (3) dans laquelle est destiné à être monté de manière amovible un insert recevant une tête fémorale prothétique. La cupule comporte : - des premiers moyens de fixation par frottement destinés à coopérer avec la surface extérieure d'un premier type d'insert, et - des seconds moyens de fixation (5) par encliquetage destinés à coopérer avec la surface extérieure d'un second type d'insert.

Artificial acetabula with studs for a total hip prosthesis

Ring for acetabular implant

TOGETHER Of ELEMENTS INTEND TO FORM an IMPLANT COTYLOIDIEN

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.

Semi-constrained ball and socket joints

Regarding semi-constrained artificial ball (head) and socket (cup) joints such as the hip or shoulder joint, which allow for certain numbers of degrees of rotation along three independent axes. For example, one embodiment creates at least two axes of rotation through a super-spherical space carved out of the inner surface of the cup, with a cup-cable connecting two points along the super-spherical space, and a perpendicular head-cable looping around the head and the cup-cable within the super-spherical space, and with the head-cable residing in a groove. Another embodiment creates two axes of rotation through a combination of a 1) swivel with lever and/or 2) cable attached to a circular track (with the knob or ring around cable facing inward or outward), both of which have the center of the head as the center of rotation. The third axis may be created by a horizontal swivel and by wiggle room.

Revision hip implants and prosthesis systems

Revision hip implants and prosthesis systems include femoral heads, cups, screws, bridges, and segmental prostheses for revision surgeries.

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.

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 ...

TOTAL JOINT REPLACEMENT INFECTION CONTROL DEVICES AND METHODS

An orthopedic system for delivery of a therapeutic agent to a bone includes an elongate stem adapted to be inserted into an intramedullary canal, an inlet configured to receive the therapeutic agent, and one or more outlets configured to deliver the therapeutic agent to the bone. The elongate stem may comprise one or more protrusions to engage the bone, and one or more channels extending longitudinally therein, fluidly coupled to the inlet. The therapeutic agent flows from the inlet through the one or more channels and exits into the intramedullary canal through the one or more outlets. The system may be configured to allow one or more dimensions of the system to be adjusted to accommodate the anatomy of a patient. 1. A therapeutic agent delivery system , said system comprising:a first intramedullary stem configured to be disposed in a first medullary canal of a first bone, the first stem comprising:an elongate body having a longitudinal axis, a first end, a second end opposite the first end, and a channel extending between the first end and the second end;a plurality of protrusions extending radially outward from the elongate body, wherein adjacent protrusions define one or more fluted regions therebetween, andwherein the plurality of protrusions are configured to engage the first medullary canal in a stable fashion, and wherein one or more outlet holes are disposed in the one or more fluted regions, the one or more outlet holes in fluid communication with the channel;a second intramedullary stem configured to be disposed in a second medullary canal of a second bone, the second stem comprising:an elongate body having a longitudinal axis, a first end, a second end opposite the first end, and a channel extending between the first end and the second end;a plurality of protrusions extending radially outward from the elongate body, wherein adjacent protrusions define one or more fluted regions therebetween, andwherein the plurality of protrusions are configured to ...

ACETABULAR CUP PROSTHESIS

An acetabular cup prosthesis comprises at least one recess in an edge of the cup and at least one attachment means. The attachment means has a projecting portion for attachment of the cup to an introducer (configured for insertion of the cup into a patient) and a retaining portion for retaining the attachment means on the cup. The retaining portion is located in a respective one of the recesses and is fixedly secured in the respective recess. A method of manufacture of the cup is also provided. 1. An acetabular cup prosthesis comprising:at least one recess in an edge of the cup; andat least one attachment means having a projecting portion for attachment of the cup to an introducer, configured for insertion of the cup into a patient, and a retaining portion for retaining the attachment means on the cup, the retaining portion being located in a respective one of said recesses and fixedly secured in said respective recess.2. An acetabular cup prosthesis according to claim 1 , wherein the retaining portion comprises an enlarged portion relative to an opening of the recess in the edge of the cup such that the enlarged portion constitutes mechanical means for fixing the attachment means to the cup.3. An acetabular cup prosthesis according to claim 2 , wherein the enlarged portion is formed by affixing a mass to an end of the retaining portion.4. An acetabular cup prosthesis according to claim 2 , wherein the enlarged portion is formed by tying a knot in an end of the retaining portion.5. An acetabular cup prosthesis according to claim 3 , wherein the attachment means comprises a metal cable and the enlarged portion is constituted by a metal ball which is crimped or welded to the metal cable.6. An acetabular cup prosthesis according to claim 3 , wherein the attachment means comprises a polymer cable and the enlarged portion is constituted by a polymer mass which is moulded to an end of the polymer cable.7. An acetabular cup prosthesis according to claim 6 , wherein the ...

Orthopedic component of low stiffness

An orthopedic component having multiple layers that are selected to provide an overall modulus that is substantially lower than the modulus of known orthopedic components to more closely approximate the modulus of the bone into which the orthopedic component is implanted. In one exemplary embodiment, the orthopedic component is an acetabular shell. For example, the acetabular shell may include an outer layer configured for securement to the natural acetabulum of a patient and an inner layer configured to receive an acetabular liner. The head of a femoral prosthesis articulates against the acetabular liner to replicate the function of a natural hip joint. Alternatively, the inner layer of the acetabular shell may act as an integral acetabular liner against which the head of the femoral prosthesis articulates.

LASER-PRODUCED POROUS SURFACE

A method of forming an implant having a porous tissue ingrowth structure and a bearing support structure. The method includes depositing a first layer of a metal powder onto a substrate, scanning a laser beam over the powder so as to sinter the metal powder at predetermined locations, depositing at least one layer of the metal powder onto the first layer and repeating the scanning of the laser beam. 120-. (canceled)21. A medical implant comprising:porous first and second structures; andan intermediate structure attached to and located between the first and the second structures, the porous intermediate structure having a different porosity than the first and the second structures, wherein the average pore size of the first structure exceeds 80 μm.22. The medical implant of claim 21 , wherein the first structure includes an irregular porous construct.23. The medical implant of claim 21 , wherein the pores of the first and the second structures are predetermined.24. The medical implant of claim 21 , wherein the average pore size of the first structure exceeds 250 μm in diameter.25. The medical implant of claim 21 , wherein the average pore size of the first structure is less than 400 μm in diameter.26. The medical implant of claim 21 , wherein the average pore size of the first structure is less than 800 μm in diameter.27. The medical implant of claim 21 , wherein the first structure is a bone ingrowth structure.28. The medical implant of claim 21 , wherein the intermediate structure is directly attached to and inseparable from the first and the second structures.29. The medical implant of claim 21 , wherein the intermediate structure is substantially solid.30. The medical implant of claim 21 , further comprising a hole passing through a thickness of the implant claim 21 , the hole having a diameter substantially larger than a diameter of pores of the first and the second structures.31. The medical implant of claim 21 , wherein the first and the second structures are ...

ACETABULAR CUP AND INSERTION HANDLE

A hip joint apparatus is described. The apparatus has an acetabular cup designed for both seated engagement within a patient's acetabulum, and articulatory reception of a matingly shaped femoral component, wherein the dome of the acetabular cup has holes configured for accepting wires and variable angle locking screws to facilitate attachment of the acetabular cup to the acetabulum, and wherein the rim of the acetabular cup has holes configured for accepting wires to provide provisional stability to the acetabular cup. The apparatus also has an insertion handle with a graspable portion and a mating portion, the mating portion attached to the graspable portion and configured for engaging with the rim of the acetabular cup, thereby coupling the insertion handle to the acetabular cup. 1. A hip joint apparatus comprising: the acetabular cup having a dome defined by the part-shell shape between the upper and lower sides, wherein the dome includes holes configured for accepting wires and variable angle locking screws to facilitate attachment of the acetabular cup to the acetabulum,', 'the acetabular cup having a rim defined by the circumferential free edge between the upper and lower sides, wherein the rim includes holes configured for accepting wires; and, "an acetabular cup defining a convex upper side having a size and shape adapted for seated engagement within a patient's acetabulum, and a lower side defining a downwardly open and generally part-spherical cavity lined by an articulation surface having a size and shape for articulatory reception of a matingly shaped femoral component,"}an insertion handle comprising a graspable portion and a mating portion, the mating portion attached to the graspable portion and configured for engaging with the rim of the acetabular cup, thereby coupling the insertion handle to the acetabular cup.2. The apparatus of claim 1 , wherein the mating portion of the insertion handle comprises recesses to accept at least two protrusions ...

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.

Acetabular Prosthesis

Acetabular prosthesis comprising an acetabular cup, an acetabular insert, able to be stably coupled inside the acetabular cup and configured to receive an articulation head and a centering unit configured to guide and center the insertion and stable positioning of the acetabular insert in the acetabular cup. The centering unit comprises a centering hole provided in the acetabular cup and a centering pin provided on the acetabular insert and which develops along a centering axis, configured to be inserted in the centering hole. The centering pin is provided with an external lateral surface that has an undulating development along the centering axis.

Implantable biological joint replacement

The present invention concerns the problem of solving issues of common mechanical endoprostheses and limitations of current cartilage replacement methods by manufacturing a complete implantable biological joint replacement. Devices which provide for the shaping, diffusion activation and particularly fulling of the joint replacement which is being produced—i.e. compression with alternating pressure and possibly a gliding motion of the fulling device on the surface of the joint replacement—are used in order to produce a weight bearing biological joint replacement with hyaline cartilage. Substances and processes which activate the formation of hyaline cartilage tissues are also provided. At the present time, the biological joint replacement is preferably suitable for implantation into the shoulder and hip, but can also be used for other joints by applying multidimensional grinding techniques.

BUFFER FOR FEMORAL HEAD AND NECK EXCISION

An apparatus for the treatment of canine or other animal hip pathologies, the apparatus () comprising a buffer () adapted to be disposed between a femur () and a hip socket (), and a fixing means () adapted to fix the buffer to the femur. 1. An apparatus for the treatment of a hip , the apparatus comprising:a main body adapted to be fitted to an excision surface of a femur from which at least the femoral head has been excised and to be disposed between a femur and at least a part of a pelvis around a hip socket; andarms having arm holes for attaching the arms to the sides of the femur,wherein the main body has a bottom surface and an upper part spaced in a first direction from the bottom surface,the bottom surface is adapted to abut the excision surface,a size of the main body in at least one direction in plan view is larger than a corresponding size of an opening of the acetabular socket of the hip subject to treatment, whereby the upper part contacts the rim of the acetabular socket and sits outside the acetabular socket allowing for movement of the upper part relative to the acetabular socket, andthe arms are adapted to extend from the main body in a second direction away from the upper part and are positioned on opposite sides of the buffer.2. An apparatus according to claim 1 , wherein the upper part comprises a resilient material to abut at least a part of the pelvis around the hip socket.3. An apparatus according to claim 1 , wherein the upper part includes a substantially flat surface.4. An apparatus according to claim 3 , wherein a curved side surface joins the bottom surface and the flat surface of the upper part.5. An apparatus according to claim 1 , wherein the bottom surface of the buffer is substantially flat.6. An apparatus according to claim 1 , wherein the arms are connected to the buffer with a hinge such that the arms can be moved from a first position in which the apparatus is flat with the arms parallel to the buffer and a second position in ...

Threaded Insert For Implant

Disclosed herein are implants with threaded inserts and methods for attaching the same to the implants. The threaded insert may define a first external dimension and include an internally threaded hole to receive a fastener. The implant may include a receiving hole with a proximal portion having a proximal diameter and a distal portion having a distal diameter. The distal diameter may be greater than the proximal diameter and substantial the same as the first dimension of the insert to secure the insert in the receiving hole. A method of attaching a threaded insert to a receiving hole of an implant with an insertion tool is also disclosed.

MODULAR ACETABULAR TRIAL LINER SYSTEM

A trial liner for use in a hip arthroplasty surgical procedure is disclosed. The trial liner includes a rim and a semi-hemispherical body attached to the rim. The semi-hemispherical body includes a concave inner wall extending inwardly from the rim to define a cavity, a convex outer wall extending from the rim opposite the inner wall, and an interior wall extending between the inner wall and the outer wall and defining an opening at an apex of the semi-hemispherical body. The semi-hemispherical body is adapted to deflect and modify the opening, when pressed against a head of a screw, to accept the head of the screw within the opening. A system that includes the trial liner and the screw, and a method for using the system in a surgical procedure, are also disclosed. 1. A trial liner for use in a hip arthroplasty surgical procedure , comprising:a rim; and a concave inner wall extending inwardly from the rim to define a cavity;', 'a convex outer wall extending from the rim opposite the inner wall; and', 'an interior wall extending between the inner wall and the outer wall and defining an opening at an apex of the semi-hemispherical body,, 'a semi-hemispherical body attached to the rim, wherein the semi-hemispherical body includeswherein the semi-hemispherical body is adapted to deflect and modify the opening, when pressed against a head of a screw, to accept the head of the screw within the opening.2. The trial liner of claim 1 , wherein the trial liner is made of a first material and the screw is made of a second material claim 1 , and the first material is softer than the second material.3. The trial liner of claim 2 , wherein the first material is a polymeric material.4. The trial liner of claim 1 , wherein the interior wall is shaped to define a female groove to engage with a corresponding male barb of the screw to resist lateral and longitudinal movement of the trial liner relative to the screw.5. The trial liner of claim 1 , wherein the interior wall is shaped to ...

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.

Implant Surfaces

The implants of the invention relate to improved implants formed using additive manufacturing techniques, the implants including a hemispherical cup portion, and an ischium flange, a pubic ramus flange and an ilium flange, each flange extending outwardly from the perimeter of the hemispherical cup portion, wherein the implant surface includes an area of integrally formed three dimensional scaffold on the bone apposition surfaces of the cup portion and on a bone apposition surface of at least one of the flanges of the implant. The invention also relates to implants with different surface texture and alignment features, together with methods for the manufacture of patient-specific implants of the invention. 1. An acetabular implant , the acetabular implant including a hemispherical cup portion , and an ischium flange , a pubic ramus flange and an ilium flange , each flange extending outwardly from the perimeter of the hemispherical cup portion , wherein the implant surface includes an area of integrally formed three dimensional scaffold on the bone apposition surfaces of the cup portion and on a bone apposition surface of at least one of the flanges of the implant.2. The implant as claimed in claim 1 , wherein the implant includes a three dimensional scaffold on every bone apposition surface within the implant.3. The implant as claimed in claim 1 , wherein the implant includes three dimensional scaffold on one or more implant edges.4. The implant of claim 1 , wherein the ischium flange claim 1 , ilium flange and/or pubic ramus flange include three dimensional scaffold across substantially all their surfaces.5. (canceled)6. The implant as claimed in claim 4 , wherein the three dimensional scaffold is formed using a modified three dimensional dodecahedron structure.7. The implant as claimed in claim 4 , wherein the three dimensional scaffold is an open mesh having a unit cell size of between 1.2 mm and 3.0 mm.8. The implant as claimed in claim 4 , wherein the three ...

IMPLANTS WITH FRANGIBLE FASTENER PORT PLUGS AND METHODS OF MANUFACTURING IMPLANTS WITH FRANGIBLE FASTENER PORT PLUGS

An orthopedic implant can comprise a structural body, a plug and a frangible connection. The structural body can comprise a first surface, a second surface opposing the first surface, and a through-bore extending from the first surface to the second surface. The through-bore can have a bore surface. The structural body can be formed of a porous material. The plug can be disposed in the through-bore. The frangible connection can link the bore surface and the plug. A method of manufacturing an orthopedic implant can comprise producing a porous structural body having a port, producing a plug for positioning in the port, and producing a plurality of frangible crosspieces within the port to connect the plug to the structural body. 1. An acetabular shell comprising:a cup-shaped body having an interior surface and an exterior surface;a plurality of holes extending from the interior surface to the exterior surface so as to be able to permit fasteners to extend through the cup-shaped body;a plug disposed in each of the plurality of holes to prevent a fastener from extending through each of the plurality of holes; anda plurality of crosspieces connecting each plug to one of the plurality of holes, wherein each crosspiece is comprised of material contiguously defining the cup-shaped body and the plugs.2. The acetabular shell of claim 1 , wherein the material defines the external surface and the internal surface of the cup-shaped body.3. The acetabular shell of claim 1 , wherein each of the plurality of crosspieces comprises a frangible strut connecting the cup-shaped body and the plurality of plugs.4. The acetabular shell of claim 1 , wherein each of the plurality of crosspieces comprises a ligament.5. The acetabular shell of claim 4 , wherein:the cup-shaped body comprises a first porous structure;each of the plurality of plugs comprises a second porous structure, the first and second porous structures comprised of a first material; anda second material comprising a layer ...

Joint socket and joint endoprosthesis

The invention relates to a joint socket for a joint endoprosthesis, in particular in the form of a hip joint socket for a hip joint endoprosthesis. The joint socket has the form or substantially the form of a section of a hollow-spherical shell. The joint socket comprises a socket wall, in which socket wall at least one through-opening is formed. The through-opening is closed with a closure element. The closure element is formed as one piece with the socket wall. At least one predetermined breaking point is formed between the closure element and the socket wall. The at least one predetermined breaking point is irreversibly destroyable for removing the closure element from the socket wall. The joint socket comprises at least one connecting device for force- and/or form-fittingly connecting the closure element removed from the socket wall to the socket wall in a connecting position.

IMPLANTS WITH FRANGIBLE FASTENER PORT PLUGS AND METHODS OF MANUFACTURING IMPLANTS WITH FRANGIBLE FASTENER PORT PLUGS

An orthopedic implant can comprise a structural body, a plug and a frangible connection. The structural body can comprise a first surface, a second surface opposing the first surface, and a through-bore extending from the first surface to the second surface. The through-bore can have a bore surface. The structural body can be formed of a porous material. The plug can be disposed in the through-bore. The frangible connection can link the bore surface and the plug. A method of manufacturing an orthopedic implant can comprise producing a porous structural body having a port, producing a plug for positioning in the port, and producing a plurality of frangible crosspieces within the port to connect the plug to the structural body. 1. An acetabular shell comprising:a cup-shaped body having an interior surface and an exterior surface;a plurality of holes extending from the interior surface to the exterior surface so as to be able to permit fasteners to extend through the cup-shaped body;a plug disposed in each of the plurality of holes to prevent a fastener from extending through each of the plurality of holes; anda plurality of crosspieces connecting each plug to one of the plurality of holes, wherein each crosspiece is comprised of material contiguously defining the cup-shaped body and the plugs.2. The acetabular shell of claim 1 , wherein the material defines the external surface and the internal surface of the cup-shaped body.3. The acetabular shell of claim 1 , wherein each of the plurality of crosspieces comprises a frangible strut connecting the cup-shaped body and the plurality of plugs.4. The acetabular shell of claim 1 , wherein each of the plurality of crosspieces comprises a ligament.5. The acetabular shell of claim 4 , wherein:the cup-shaped body comprises a first porous structure;each of the plurality of plugs comprises a second porous structure, the first and second porous structures comprised of a first material; anda second material comprising a layer ...

ACETABULAR CUP PROSTHESIS

Provided are acetabular cup implant assemblies that can be used in hip replacement surgery. Example assemblies comprise a shell and a liner. The liner can be positioned within a shell. Optionally, the liner can be rotated relative to the shell until the liner is seated in the shell in a position where the liner and shell can be secured to one another. Waveform-shaped features of the shell and liner can guide the relative rotation of the liner and shell. Also provided are methods of seating a liner in shell of an acetabular cup implant assembly. 1. An acetabular cup implant , comprising:a shell having an outer shell surface adapted for seating in a subject's pelvic bone, an inner shell surface, a shell opening, and a rim positioned peripheral to the shell opening and having a waveform shape, the waveform shape having at least one wave peak and at least one wave valley; anda liner adapted for insertion into the shell, the liner having an outer liner surface, an inner liner surface, a liner opening, and a rim positioned peripheral to the liner opening and having a waveform shape, the waveform shape having at least one wave peak and at least one wave valley, wherein at least a portion of the liner rim rests on at least a portion of the shell rim upon insertion of the liner into the shell.2. The acetabular cup implant of claim 1 , wherein at least one liner wave peak rests within at least one shell wave valley when the liner is inserted into the shell.3. The acetabular cup implant of claim 1 , wherein at least one liner wave peak rests on at least one shell wave peak when the liner is inserted into the shell.4. The acetabular cup implant of claim 1 , wherein at least one liner wave peak rests on the shell rim waveform shape at a location between at least one shell wave peak and at least one shell wave valley when the liner is inserted into the shell.5. The acetabular cup implant of or claim 1 , wherein the liner is rotatable relative to the shell.6. The acetabular cup ...

ARTIFICIAL ACETABULUM WITH MULTI-LAYER SHELL CORE COMPOSITE STRUCTURE

An artificial acetabulum having a multilayer shell-core composite structure includes a ceramic acetabular liner, a transition layer and an acetabular shell. The acetabular shell is made of a porous metal, a porous alloy or a porous toughened ceramic; the ceramic acetabular liner is made of a ceramic material; and the transition layer is made of a composite material comprising materials of the acetabular shell and the ceramic acetabular liner. The artificial acetabulum is manufactured through sintering a green body of successively stacked layers of the ceramic acetabular liner, the transition layer and the acetabular shell, and the green body of successively stacked layers is obtained through a powder co-injection molding process. The ceramic acetabular liner of the artificial acetabulum has a high rigidness, corrosion-proof and wear-proof performance. The acetabular shell of the artificial acetabulum has a high toughness and shockresistant performance. 1. An artificial acetabulum having a multilayer shell-core composite structure , comprising: a ceramic acetabular liner , a transition layer and an acetabular shell ,wherein the acetabular shell is made of a porous metal, a porous alloy or a porous toughened ceramic, the ceramic acetabular liner is made of a ceramic material, and the transition layer is made of a composite material comprising materials of the acetabular shell and the ceramic acetabular liner; andwherein the artificial acetabulum is manufactured through sintering a green body of successively stacked layers of the ceramic acetabular liner, the transition layer and the acetabular shell, and the green body of successively stacked layers of the ceramic acetabular liner, the transition layer and the acetabular shell is obtained through a powder co-injection molding process.2. The artificial acetabulum according to claim 1 , wherein the transition layer has a single-layer or multi-layer structure.3. The artificial acetabulum according to claim 1 , wherein ...

Artificial femoral ball head with multi-layer shell core composite structure

An artificial femoral ball head having a multilayer shell-core composite structure includes a spherical shell layer, a transition layer and an inner core. The inner core is made of a toughened ceramic, the spherical shell layer is made of a ceramic material, and the transition layer is made of a composite material comprising materials of the inner core and the spherical shell layer. The artificial femoral ball head is manufactured through sintering a green body of successively stacked layers of the spherical shell layer, the transition layer and the inner core, and the green body of successively stacked layers is obtained through a powder co-injection molding process. The spherical shell layer of the artificial femoral head has a high rigidness, corrosion-proof and wear-proof performance. The inner core of the artificial femoral head has a high toughness and shockresistant performance.

ACETABULAR SURGICAL IMPLANT FOR SEGMENTAL PELVIC DEFECT AND METHODS OF USE AND MANUFACTURE

A method of implanting a medical device including forming a tunnel at least partially through a patient's bone, placing the medical device on the bone so that a stress-diffusion element (i.e., a stem) extending from the medical device at least partially extends into the tunnel, and securing the medical device to the bone. The medical device includes a hemispherical cup having a bone-abutment exterior surface, an interior surface defining a cavity, a circumferential rim extending between the exterior surface and the interior surface, and at least one aperture extending between the exterior surface and the interior surface. The stress-diffusion element is formed to extend from and be oriented with respect to the cup based on whether the surgical implant is to be used on a left side or right side of the patient for reconstruction of the segmental acetabular defect. 1. A surgical method of implanting a medical device , the method comprising the steps of:exposing a portion of a bone of a patient;forming a tunnel at least partially through the bone;placing the medical device on the bone so that a stress-diffusion element extending from the medical device at least partially extends into the tunnel, the medical device including (i) a hemispherical cup having a bone-abutment exterior surface, (ii) an interior surface defining a cavity, (iii) a circumferential rim extending between the exterior surface and the interior surface, and (iv) at least one aperture extending between the exterior surface and the interior surface; andsecuring the medical device to the bone.2. The surgical method of claim 1 , wherein the placing step includes orienting the medical device so that (i) the cup is directly on the bone claim 1 , and (ii) a substantial portion of the stress-diffusion element is directly on and extending along the bone so that stress received by the medical device is diffused through the medical device and distributed along the stress-diffusion element.3. The surgical method ...

Instruments for osteolysis repair

A plug for plugging a hole of a bone or implant body during injection of an osteoregenerative material comprising, generally, a plug body, the plug body configured to plug a hole of the body to prevent osteoregenerative material from leaking through the hole, and a tail, the tail attached to the plug body for use in removing the plug body from the hole. In one embodiment, the plug body has an insertion cavity on a trailing end thereof for use in inserting the plug into a hole of the body. The plug body preferably has a frustoconical configuration. The plug body is preferably made of a resilient material, such as silicon.

Interlocking Acetabular Fixation Screws and Their Combination with a Reverse Hip Acetabular Cup

Interlocking acetabular fixation screws having a threaded shaft for threading into cancellous bone and a tapered threaded head for threading into tapered threaded screw holes in a reverse hip acetabular cup. The reverse hip acetabular cup has a central stem and the threaded screw holes are drilled at an angle that allows drilling of the bone of the acetabular cavity, placement of the screws and tightening of the screws without touching the central stem and without interference from the central stem. 1. A reverse hip acetabular cup having a surface for secure attachment to an acetabular cavity and a concave surface having a central stem extending therefrom , the acetabular cup and stem having a common first central axis , the acetabular cup comprising at least one threaded screw hole having a second central axis and a circumferential edge on the concave surface wherein lines extending from said circumferential edge and in parallel with the second central axis do not intersect with the central stem.2. The reverse hip acetabular cup of further comprising an interlocking acetabular fixation screw threaded into the at least one threaded screw hole.3. The reverse hip acetabular cup of wherein the threaded screw hole is tapered at an angle from 10 to 15 degrees relative to the second central axis and has a circumference on the concave surface that is larger than the circumference on the convex surface.4. The reverse hip acetabular cup of wherein the interlocking acetabular fixation screw has an externally threaded head claim 3 , is tapered at the same angle as the threaded screw hole and the threaded head is sized to mate with the threaded screw hole.5. The reverse hip acetabular cup of wherein the screw has a tapered head at an angle from 10 to 15 degrees and an overall length from 21 to 31 millimeters and a shank diameter from 4 to 5 millimeters.6. The reverse hip acetabular cup of wherein the screw has a cancellous thread diameter from 6 to 7 millimeters.7. The reverse ...

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. 1. An acetabular cage , comprising:a cup portion configured for implantation in an acetabulum; and ["a first surface and a second surface opposite the first surface, the first surface arranged and configured to contact a patient's bony tissue surrounding the acetabulum when the cup portion is implanted into the acetabulum;", 'one or more fixation features arranged and configured to couple the flange to the bony tissue surrounding the acetabulum; and', 'a flexible region arranged and configured to enable the flange to be movable positioned relative to the cup portion., 'a flange extending from the cup portion, the flange including2. The acetabular cage of claim 1 , wherein the flexible region comprises a drapable chainmail structure comprising a plurality of interlinked floating members so that the flexible region is configured to conform to an overall geometry of the bony tissue surrounding the acetabulum during use.3. The acetabular cage of claim 2 , wherein the plurality of interlinked floating members are arranged and configured to facilitate relative movement of adjacent floating members.4. The acetabular cage of ...

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. 1. An acetabular prosthesis , comprising:a shell having an outer surface and an inner surface, the outer surface defining an external shape;at least one through bore extending from the outer surface of the shell to the inner surface of the shell; andat least one augment 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.2. The acetabular prosthesis of claim 1 , wherein the at least one through bore comprises a plurality of through bores and the at least one augment comprises 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 in order to form the modified external shape.3. The acetabular prosthesis of claim 1 , wherein in the assembled state the at least one augment extends from the inner surface of the shell to the outer surface of the shell.4. The acetabular prosthesis of claim 1 , wherein in the assembled state the at least one augment extends from the inner surface of the shell to a location beyond the outer surface of the shell.5. The acetabular prosthesis of claim 1 , wherein the at least one augment includes a thread and the at least one through bore includes a thread that is complementary to the thread on the at least one augment in order to attach the at least one augment to the at least one through bore.6. The ...

COAXIAL FULLY ARTICULATING JOINT

An orthopedic prosthesis includes a proximal member which internally accommodates the major motion of a patient, e.g., during walking, thereby reducing wear against a cup or liner. A distal member may be utilized which rotates within the distal member about an axis aligned with the major motion of the patient. The orthopedic prosthesis may also include a head and neck, the neck being rotatably mounted within the head, the head being rotatably mounted within the acetabulum region of a patient. 1. An articulating joint to be implanted within a patient comprising:a proximal member dimensioned and configured to be received by the acetabulum of a patient in substantially unrestricted relation thereto;said proximal member further configured to receive a distal member;said proximal member and said distal member correspondingly dimensioned and configured to accommodate coaxial motion of the joint due to major motion of the patient within said proximal member.2. The joint as recited in wherein said distal member is dimensioned and configured to be fixedly connected to a femur of the patient; said proximal member and said distal member correspondingly configured and dimensioned to be adjoined at a mating interface which accommodates at least one degree of freedom of movement of the distal member relative to the proximal member.3. The joint as recited in wherein said proximal member comprises a head claim 2 , said head comprising a recess.4. The joint as recited in wherein said distal member comprises a neck.5. The joint as recited in wherein said mating interface is defined by an inner surface of said head and and outer surface of said neck.6. The joint as recited in wherein said at least one degree of freedom of movement comprises a rotation of said neck relative to said head about an axis of rotation of the orthopedic prosthesis claim 4 , wherein said axis of rotation may be aligned with an axis of the major motion of the patient.7. The joint as recited in wherein said neck ...

PROSTHESIS AND METHODS INCLUDING ANATOMICALLY POSITIONED HOLES

A method of anatomically positioning screw holes in an acetabular implant that can be used in surgery, such as a total hip arthroplasty. In some examples the method can be used to position holes in a shell of the implant. The method can include, for example, obtaining anatomic data including data defining an arch of bone behind an acetabulum of the living being, the arch of bone extending from a superior anterior portion to an inferior posterior portion of the acetabulum. The method can further include positioning a first series of holes along a first arched line within the acetabular shell, the first arched line determined based on the anatomic data for the arch of bone proximate the acetabulum of the living being. 1. A method of anatomically positioning screw holes in an acetabular implant , the method comprising:determining, based on anatomic information for a living being, a size of an acetabular shell having a hemispherical shaped dome;obtaining anatomic data including data defining an arch of bone behind an acetabulum of the living being, the arch of bone extending from a superior anterior portion to an inferior posterior portion of the acetabulum; andpositioning a first series of holes along a first arched line within the acetabular shell, the first arched line determined based on the anatomic data for the arch of bone behind the acetabulum for the living being.2. The method of claim 1 , wherein obtaining the anatomic data includes obtaining arch anatomic data for the living being claim 1 , and wherein positioning the first series of holes in the acetabular shell further comprises positioning a first hole to accommodate a first screw inserted superiorly into an ilium of the living being claim 1 , and positioning a second hole to accommodate a second screw inserted inferiorly into an ischium of the living being.3. The method of claim 1 , wherein determining the size of the acetabular shell is based on anatomic information obtained from an anatomic database.4. ...

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.

MULTI-AXLE LOCKING ARRANGEMENT CONSISTING OF A SCREW, A CLAMP AND A PLATE

MULTI-LAYER LAYOUT ARRANGEMENT COMPRISING A SCREW, BELL AND PLATE

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.

Cemented prosthetic kit

A kit ( 10 ) for use in implanting a stem ( 12 ) into a long bone ( 36 ) for use in joint arthroplasty is provided. The kit ( 10 ) includes a stem ( 12 ) for implantation into the long bone ( 36 ), a cement restrictor ( 16 ), and a quantity of bone cement ( 20 ).

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.

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.

Modular bone prosthesis with cup and pins

Kit for an artificial joint cup, especially an acetabular cup

Porous-coated bone screw for securing prosthesis

Bone screws are disclosed with and without heads and with the screw shaft provided with axially adjacent longitudinally extending regions, one or more of which have bone ingrowth porous surfaces and alternate with regions having threaded surfaces. The headed embodiments have a region with a threaded surface nearest the head.

Method and apparatus for use of porous implants

A prosthesis includes an implant defining an attachment surface thereon. A porous insert is selectively coupled to the implant. The porous insert is adapted to be received at the attachment surface of the implant in a retained position. The porous insert is adapted to facilitate tissue ingrowth. In one embodiment the implant comprises a femoral component. The femoral component comprises an inner condylar portion having a first and second lateral sidewalls, an anterior wall and a posterior wall defining a box. The box defines the attachment surface. In other embodiments, the implant comprises a hip stem and an acetabular shell.

acetabular

COTYLOIDIAN PROSTHESIS

Prosthesis system and method of implanting

A prosthetic joint system includes a body having at least one aperture into which an elongate sleeve component is engageable. A screw for securing the body to bone is insertable into the bone via a bore in the sleeve. The bore has a length that is sufficient to accommodate movement of the screw as the prosthesis subsides over time. More particularly, the sleeve allows the screw head to move longitudinally such that the screw is prevented from damaging an inner member of the prosthesis system that provides an articulation surface for a corresponding prosthetic joint component. In one embodiment, a prosthesis system includes an acetabular cup for a prosthetic hip joint.

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.

Acetabulum

Prosthetic ellipsoidal acetabular cup

An acetabular cup prosthetic device comprised of an outer shell component and a inner bearing insert and the method of implanting the acetabular cup prosthetic within a patient. The outer surface of the shell component for the present invention acetabular cup has a plurality of regions which conform to the curvature of at least one ellipsoid. To implant the shell component, the acetabulum of a patient is spherically reamed to a size slightly smaller than that of the outer surface of the shell component. As the shell component is inserted into the spherically shaped acetabulum, the interior surface of the acetabular cavity deforms to assume a substantially ellipsoidal curvature, producing an interference fit between the rim region of the shell component and the upper peripheral rim region of the acetabulum. The remaining surface regions of the acetabulum conform substantially to the ellipsoidal shape or shapes defined by the remaining surface regions of the shell component so that surface contact is established without the development of ejection forces therebetween.

Orthopedic component of low stiffness

An orthopedic component having multiple layers that are selected to provide an overall modulus that is substantially lower than the modulus of known orthopedic components to more closely approximate the modulus of the bone into which the orthopedic component is implanted. In one exemplary embodiment, the orthopedic component is an acetabular shell. For example, the acetabular shell may include an outer layer configured for securement to the natural acetabulum of a patient and an inner layer configured to receive an acetabular liner. The head of a femoral prosthesis articulates against the acetabular liner to replicate the function of a natural hip joint. Alternatively, the inner layer of the acetabular shell may act as an integral acetabular liner against which the head of the femoral prosthesis articulates.

互锁髋臼固定螺钉及其与倒置的髋臼杯的组合

互锁髋臼固定螺钉具有用于拧入松质骨中的螺纹轴和用于拧入倒置髋臼杯中的锥形螺纹螺孔中的锥形螺纹头部。倒置的髋臼杯具有中心柄，且螺纹螺孔以一定角度被钻取，所述角度允许在不接触中心柄且不与中心柄干涉的情况下钻取髋臼腔的骨、放置螺钉、并且拧紧螺钉。

Hip joint device and method

관절 표면을 제공함으로써 고관절 관절염을 치료하기 위한 의료 장치를 제공한다. 의료 장치는 2개 이상의 인공 고관절 표면 부분을 포함하며, 2개 이상의 인공 고관절 표면 부분은 수술 동안 인공 고관절 표면을 형성하기 위해 서로 연결되도록 구성된다. 또한, 상기 의료 장치를 제공함으로써 환자의 고관절을 치료하는 방법을 제공한다. 고관절은 대퇴골두 및 관골구를 포함하며, 상기 방법은, 환자의 피부를 커팅하는 단계, 관골구의 반대측의 골반뼈의 영역을 해부하는 단계, 해부된 영역에 골반뼈를 통과하여 환자의 고관절 내로 이어지는 구멍을 형성하는 단계, 및 의료 장치를 환자의 골반뼈의 구멍을 통해 고관절에 제공하는 단계를 포함한다. The present invention provides a medical device for treating hip arthritis by providing a joint surface. The medical device includes two or more artificial hip surface portions and two or more artificial hip surface portions are configured to be connected to each other to form an artificial hip surface during surgery. The present invention also provides a method for treating a hip of a patient by providing the medical device. The method includes: cutting the skin of a patient; dissecting a region of the pelvic bone on the opposite side of the ankle; dissecting the dissected region through the pelvic bone and into the patient ' And providing the medical device to the hip joint through a hole in the patient's pelvic bone.

Ревизионные имплантаты и системы эндопротезирования для тазобедренного сустава

1. Система ревизионного имплантата для ревизионной операции в области тазобедренного сустава пациента, содержащая:ацетабулярную чашку, содержащую чашеобразную часть и периферийную часть, причем указанная ацетабулярная чашка имеет первую поверхность, предназначенную для взаимодействия с тазовой костью пациента, и вторую поверхность, расположенную с противоположной стороны по отношению к тазовой кости пациента; по крайней мере, часть второй поверхности обращена к бедренному компоненту имплантата тазобедренного сустава; указанная ацетабулярная чашка имеет группу винтовых отверстий, проходящих от первой поверхности до второй поверхности; винтовые отверстия имеют у первой поверхности первый диаметр и у второй поверхности второй диаметр, причем второй диаметр больше первого диаметра; винтовые отверстия группы имеют резьбовую внутреннюю поверхность; ипервый винт, имеющий стержень и головку, причем: стержень характеризуется третьим диаметром, который меньше первого диаметра винтового отверстия; головка характеризуется четвертым диаметром, который больше первого диаметра винтового отверстия; на стержне имеется резьба, предназначенная для зацепления за структуру тазовой кости; на головке имеется резьба, предназначенная для зацепления за резьбовые внутренние поверхности винтовых отверстий в ацетабулярной чашке.2. Система ревизионного имплантата по п.1, содержащая:второй винт, имеющий стержень и головку, причем: стержень характеризуется пятым диаметром, который меньше первого диаметра винтового отверстия; головка характеризуется шестым диаметром, который больше первого диаметра винтового отверстия; РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК A61F 2/32 (13) 2012 153 832 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2012153832/14, 18.05.2011 (71) Заявитель(и): СМИТ ЭНД НЕФЬЮ, ИНК. (US) Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): УИДЕН Стивен Х. (US) 18.05.2010 US 61/345,762 (85) Дата начала рассмотрения ...

Artificial hip joint

互锁髋臼固定螺钉及其与倒置的髋臼杯的组合

互锁髋臼固定螺钉具有用于拧入松质骨中的螺纹轴和用于拧入倒置髋臼杯中的锥形螺纹螺孔中的锥形螺纹头部。倒置的髋臼杯具有中心柄，且螺纹螺孔以一定角度被钻取，所述角度允许在不接触中心柄且不与中心柄干涉的情况下钻取髋臼腔的骨、放置螺钉、并且拧紧螺钉。

A stem for artificial hip joint and stem install method

The present invention relates to a stem for an artificial hip joint which minimizes an impact on a femur through the stem when being inserted into the femur, and can be easily removed when removing, and a stem installing method. The stem for an artificial hip joint which is used to replace a femur head or an acetabulum due to damage comprises: a stem body in which a head fixing part for fixing a head to an upper part protrudes, and in which a horizontally opened operation space and a head insertion hole vertically penetrated so as to be connected to the operation space are formed on an upper side; a screw part inserted into the head insertion hole, and rotating; an operation conversion part vertically moved by the screw part in a state of being inserted into the operation space and being connected to the screw part; a fixing bracket inserted into the operation space, and fixing the screw part so as to rotate without a depth change; a variable operation part inserted into a support surface of the stem body, and adjusting a width in a horizontal direction by an operation of the operation conversion part; and a driving pin fixing the variable operation part to the operation conversion part.

Acetabular component prosthese

本发明公开了髋臼组件假体。该髋臼组件假体包括髋臼杯，髋臼杯采用金属粉末3D打印成型，髋臼杯包括第一质密部和第一微孔部，第一微孔部包覆在第一质密部外侧，第一微孔部由内向外依次形成孔隙率逐渐变大的第一微孔层、第二微孔层和第三微孔层，髋臼杯为半球形结构，第一质密部内部形成有腔体，髋臼杯半球面上设有第一通孔，第一质密部端面设有第二通孔，第一质密部端面还圆周排布有第二通孔。本发明具有保持良好的骨啮合长入，结合部位的强度高，清洗消毒方便，人体无过敏反应的效果。

Hip joint device and method

관절 표면을 제공함으로써 고관절 관절염을 치료하기 위한 의료 장치를 제공한다. 의료 장치는 2개 이상의 인공 고관절 표면 부분을 포함하며, 2개 이상의 인공 고관절 표면 부분은 수술 동안 인공 고관절 표면을 형성하기 위해 서로 연결되도록 구성된다. 또한, 상기 의료 장치를 제공함으로써 환자의 고관절을 치료하는 방법을 제공한다. 고관절은 대퇴골두 및 관골구를 포함하며, 상기 방법은, 환자의 피부를 커팅하는 단계, 관골구의 반대측의 골반뼈의 영역을 해부하는 단계, 해부된 영역에 골반뼈를 통과하여 환자의 고관절 내로 이어지는 구멍을 형성하는 단계, 및 의료 장치를 환자의 골반뼈의 구멍을 통해 고관절에 제공하는 단계를 포함한다. A medical device for treating hip arthritis is provided by providing a joint surface. The medical device includes two or more artificial hip surface portions, and the two or more artificial hip surface portions are configured to be connected to each other to form an artificial hip joint surface during surgery. Further, by providing the medical device, a method of treating a patient's hip joint is provided. The hip joint includes a femoral head and an osteoclast, and the method includes: cutting the patient's skin, dissecting a region of the pelvic bone on the opposite side of the osteoclast, a hole leading into the hip joint of the patient through the pelvic bone in the dissected region Forming, and providing the medical device to the hip joint through a hole in the patient's pelvic bone.

Orthopedic component of low stiffness

An orthopedic component having multiple layers that are selected to provide an overall modulus that is substantially lower than the modulus of known orthopedic components to more closely approximate the modulus of the bone into which the orthopedic component is implanted. In one exemplary embodiment, the orthopedic component is an acetabular shell. For example, the acetabular shell may include an outer layer configured for securement to the natural acetabulum of a patient and an inner layer configured to receive an acetabular liner. The head of a femoral prosthesis articulates against the acetabular liner to replicate the function of a natural hip joint. Alternatively, the inner layer of the acetabular shell may act as an integral acetabular liner against which the head of the femoral prosthesis articulates.

Segmented prosthetic articulation

A ball and socket prosthetic joint device. A plurality of curved rigid segments are embedded within and extend out of a polymeric cushion to form a discontinuous hemispherical bearing surface for slidable engagement with a continuous hemispherical bearing surface.

Method of manufacturing an acetabular component

An orthopedic component having multiple layers that are selected to provide an overall modulus that is substantially lower than the modulus of known orthopedic components to more closely approximate the modulus of the bone into which the orthopedic component is implanted. In one exemplary embodiment, the orthopedic component is an acetabular shell. For example, the acetabular shell may include an outer layer configured for securement to the natural acetabulum of a patient and an inner layer configured to receive an acetabular liner. The head of a femoral prosthesis articulates against the acetabular liner to replicate the function of a natural hip joint. Alternatively, the inner layer of the acetabular shell may act as an integral acetabular liner against which the head of the femoral prosthesis articulates.

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>

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.

Laser-produced porous surface

A method of forming an implant having a porous tissue ingrowth structure and a bearing support structure. The method includes depositing a first layer of a metal powder onto a substrate, scanning a laser beam over the powder so as to sinter the metal powder at predetermined locations, depositing at least one layer of the metal powder onto the first layer and repeating the scanning of the laser beam.

Laser-produced porous surface

A method of forming an implant having a porous tissue ingrowth structure and a bearing support structure. The method includes depositing a first layer of a metal powder onto a substrate, scanning a laser beam over the powder so as to sinter the metal powder at predetermined locations, depositing at least one layer of the metal powder onto the first layer and repeating the scanning of the laser beam.

Laser-produced porous surface

A method of forming an implant having a porous tissue ingrowth structure and a bearing support structure. The method includes depositing a first layer of a metal powder onto a substrate, scanning a laser beam over the powder so as to sinter the metal powder at predetermined locations, depositing at least one layer of the metal powder onto the first layer and repeating the scanning of the laser beam.

Endoprosthesis to replace a human hip joint

Chemical dispensing system

A chemical dispensing system for dispensing a liquid chemical agent, such as an antibiotic, anesthetic, growth factor, hormone, anti=neoplastic agent, or the like, onto or into a site of a surgical procedure. The system includes at least one bladder having an internal cavity that connects to an open tube wherethrough the liquid chemical agent is passed, under pressure, into the bladder. The liquid chemical agent passes, as a low volume flow, through at least one hole formed through a bladder wall and onto the surgical procedure site. Embodiments of the invention include one or a pair of individual bladders formed from a thin flexible biocompatible material, each for positioning in close proximity to a prepared bone surface with a plurality of holes formed through the bladder surface that is in engagement with the prepared bone surface to bleed a low volume flow of a chemical agent onto the bone surface; a bladder for fitting into and to travel along a longitudinal passage of an intramedullary rod or nail to a location therealong that is adjacent to the surgical procedure site for delivering a volume of the liquid chemical agent onto that site; and a fixation device that includes at least one hollow pin for passing a volume of the liquid chemical agent therethrough directly into or onto a bone proximate to a fracture therein.

System and method for delivering biological materials to a prosthesis implantation site

In one embodiment of the invention, a method is provided including the steps of preparing an opening in the bone sized to receive a prosthesis therein and then inserting an apertured temporary implant into the opening. A fluent material is then injected into the temporary implant so that the material exudes from the apertures into contact with the bone surrounding the temporary implant. The temporary implant is then removed to make way for implanting the prosthesis into the bone opening. The fluent material can be a biological, biocompatible or bioactive material, such as a composition adapted to permanently fill voids and irregularities in the bone or a composition adapted to promote bone growth. In another embodiment, an implant assembly includes an apertured sleeve adapted to be permanently implanted within the bone opening, but providing apertures for injecting a fluent material into the opening. The sleeve defines a cavity for receiving the distal portion of a prosthetic joint element, which can be fixed to the sleeve.

Asymmetric formation of sockets and/or socket inserts for the manipulation and suppression of natural frequencies

The invention relates to a socket and/or socket insert for a hip joint prosthesis, the shaft of which can be coupled with a ball head, which in turn can be inserted in a rotatable manner in the hemispherical recess of the socket insert, wherein the shaft can be implanted in the femur and the socket insert can be implanted directly or via a hip socket in the pelvic bone. According to the invention, to avoid squeaking, it is proposed that the socket (4) and/or the socket insert is/are formed asymmetrically in its/their outer (12) and/or inner (13) geometry and/or material composition.

Self-lubricating implantable articulation member

Implantable articles, such as bone prostheses, are prepared by casting techniques and have incorporated therein fluid communicating passageways. The internal fluid communicating passageways convey synovial fluid from a joint space to the articulation surface of an artificial joint. The presence of synovial fluid at the articulation surface provides sufficient lubricity to the joint and enables artificial joints to utilize metal/metal, metal/ceramic, and ceramic/ceramic articulation couples without the need for a low friction polymeric lining material. Accordingly, artificial joint components formed according to the present invention are less likely to develop wear debris. The implantable articles are formed by a casting process from casting molds that are prepared using a three dimensional printing technique.

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 joints with contained compressible resilient members

In a total knee replacement (TKR), the use of a cushion element provides better wear characteristics than polyethylene (“poly”) alone. Since a metal-on-metal, metal-on-ceramic, or ceramic-on-ceramic articulating surface has better wear characteristics than metal on poly, the invention essentially provides cushioning for metal/ceramic-on-metal/ceramic joint replacements. It also allows the use of elastomers for their cushioning properties rather than their surface wear and tensile strength characteristics. The contained compressible elements could also be used as a cushion below polyethylene components, polyethylene over metal components, unicondylar knee replacements, patellar components, and prosthetic components for other parts of the body, including the hip, elbow, shoulder, wrist, and ankle.

Interlocking reverse hip prosthesis

An interlocking reversed hip prosthesis including an acetabular cup being implanted in the acetabular cavity having an acetabular articular ball, firmly attached to the central portion of the cup via Morse taper. The femoral component having a hemispherical cup attached to the neck of the implant via Morse taper in a modular fashion thereby allowing use of several length necks. After implantation of the acetabular cup and the femoral cup, the two members are assembled together for relative movement. The acetabular cup secured by several screws or resorbable fixation studs. During range of motion, the edge of the femoral cup becomes inserted into space located between the acetabular cup and the acetabular ball and becomes restrained thus reducing the likelihood of dislocation during extreme range of motion.

Interlocking reverse shoulder prosthesis method

An interlocking reverse shoulder prosthesis including a glenoid cup being implanted in the glenoid fossa having a glenoid ball, firmly attached to the central portion of the cup via Morse taper. The humeral component having a hemispherical cup attached to the neck of the implant via Morse taper in a modular fashion thereby allowing use of several neck lengths. After implantation of the glenoid cup, glenoid hall and the humeral cup, the members are assembled together for relative movement. The glenoid cup is secured by several screws or resorbable fixation studs. During range of motion, the edge of the humeral cup becomes inserted into a gap located between the glenoid cup and the glenoid ball and becomes restrained thus reducing the likelihood of dislocation during extreme range of motion.

Interlocking reverse hip revision prosthesis

A reverse hip prosthesis comprising an acetabular cup for implanting in a previously implanted acetabular cup. The acetabular cup is secured to the previously implanted acetabular cup using an o-ring. The acetabular cup has a stem extending from the center of a concave portion thereof and an acetabular ball is attached to the stem, preferably by means of a Morse taper. A femoral implant is provided with a femoral cup attached to the proximal end thereof. The femoral cup has a stem which can be constructed in a modular fashion with several stem lengths in order to accommodate the various sizing requirements of different patients. After implantation of the acetabular cup and ball and the femoral cup, the members are assembled together so that the femoral cup can articulate on the acetabular ball. As the femoral cup is articulated, the edge of the femoral cup moves into a space located between the acetabular cup and the acetabular ball and thereby becomes constrained, thus reducing the likelihood of dislocation during extreme ranges of motion.

Interlocking reverese hip and revision prosthesis and method

A reverse hip prosthesis comprising an acetabular cup for implanting in an acetabular socket. The acetabular cup is secured to the acetabular socket. The acetabular cup has a stem extending from the center of a concave portion thereof and an acetabular ball is attached to the stem. A femoral implant has a femoral cup attached to the proximal end thereof. The femoral cup has a stem which can be made with several stem lengths in order to accommodate the various sizing requirements of patients. After implantation of the acetabular cup and ball and the femoral cup, the members are assembled together so that the femoral cup can articulate on the acetabular ball. The prosthesis of the invention has a wide range of motion and substantially improved tribology.

Interlocking reverse hip prosthesis and method

An interlocking reversed hip prosthesis including an acetabular cup being implanted in the acetabular cavity having an acetabular articular ball, firmly attached to the central portion of the cup via Morse taper. The femoral component having a hemispherical cup attached to the neck of the implant via Morse taper in a modular fashion thereby allowing use of several length necks. After implantation of the acetabular cup and the femoral cup, the two members are assembled together for relative movement. The acetabular cup secured by several screws or resorbable fixation studs. During range of motion, the edge of the femoral cup becomes inserted into space located between the acetabular cup and the acetabular ball and becomes restrained thus reducing the likelihood of dislocation during extreme range of motion.

To interlock contrary hip and jointing repair prosthesis

相反髋部假体包括用于植入于髋臼窝中的髋臼杯。使用紧固件将髋臼杯固定到盆骨的髋臼窝。髋臼杯具有从其凹入部的中心延伸的柄，且髋臼球优选地借助于莫氏锥度而附连到柄上。股骨植入物具备附连到其近端的股骨杯。股骨杯具有柄，柄可以用模块化方式构建，具有若干柄长度以便适应不同患者的各种大小要求。在植入了髋臼杯和球和股骨杯之后，这些部件组装在一起从而使得股骨杯能在该髋臼球上铰接。本发明的假体具有较宽运动范围，且基本上改进了摩擦。由于股骨杯是铰接的，股骨杯的边缘移动到位于髋臼杯与髋臼球之间的空间内，且由此变得受限制，因而减小了在极端运动范围期间错位的可能性。

Interlocking Reverse Hip and Revision Prosthesis

A reverse hip prosthesis comprising an acetabular cup for implanting in an acetabular socket. The acetabular cup is secured to the acetabular socket of the pelvis using fasteners. The acetabular cup has a stem extending from the center of a concave portion thereof and an acetabular ball is attached to the stem, preferably by means of a Morse taper. A femoral implant is provided with a femoral cup attached to the proximal end thereof. The femoral cup has a stem which can be constructed in a modular fashion with several stem lengths in order to accommodate the various sizing requirements of different patients. After implantation of the acetabular cup and ball and the femoral cup, the members are assembled together so that the femoral cup can articulate on the acetabular ball. The prosthesis of the invention has a wide range of motion and substantially improved tribology. As the femoral cup is articulated, the edge of the femoral cup moves into a space located between the acetabular cup and the acetabular ball and thereby becomes restrained, thus reducing the likelihood of dislocation during extreme ranges of motion.

Interlocking reverse hip and revision prosthesis

相反髋部假体包括用于植入于髋臼窝中的髋臼杯。使用紧固件将髋臼杯固定到盆骨的髋臼窝。髋臼杯具有从其凹入部的中心延伸的柄，且髋臼球优选地借助于莫氏锥度而附连到柄上。股骨植入物具备附连到其近端的股骨杯。股骨杯具有柄，柄可以用模块化方式构建，具有若干柄长度以便适应不同患者的各种大小要求。在植入了髋臼杯和球和股骨杯之后，这些部件组装在一起从而使得股骨杯能在该髋臼球上铰接。本发明的假体具有较宽运动范围，且基本上改进了摩擦。由于股骨杯是铰接的，股骨杯的边缘移动到位于髋臼杯与髋臼球之间的空间内，且由此变得受限制，因而减小了在极端运动范围期间错位的可能性。

Interlocking reverse hip and revision prosthesis

A reverse hip prosthesis comprising an acetabular cup for implanting in an acetabular socket. The acetabular cup is secured to the acetabular socket of the pelvis using fasteners. The acetabular cup has a stem extending from the center of a concave portion thereof and an acetabular ball is attached to the stem, preferably by means of a Morse taper. A femoral implant is provided with a femoral cup attached to the proximal end thereof. The femoral cup has a stem which can be constructed in a modular fashion with several stem lengths in order to accommodate the various sizing requirements of different patients. After implantation of the acetabular cup and ball and the femoral cup, the members are assembled together so that the femoral cup can articulate on the acetabular ball. The prosthesis of the invention has a wide range of motion and substantially improved tribology. As the femoral cup is articulated, the edge of the femoral cup moves into a space located between the acetabular cup and the acetabular ball and thereby becomes restrained, thus reducing the likelihood of dislocation during extreme ranges of motion.

Product and methods for interlocking reverse hip and revision prosthesis

A reverse hip prosthesis comprising an acetabular cup for implanting in an acetabular socket. The acetabular cup is secured to the acetabular socket of the pelvis using fasteners. The acetabular cup has a stem extending from the center of a concave portion thereof and an acetabular ball is attached to the stem, preferably by means of a Morse taper. A femoral implant is provided with a femoral cup attached to the proximal end thereof. The femoral cup has a stem which can be constructed in a modular fashion with several stem lengths in order to accommodate the various sizing requirements of different patients. After implantation of the acetabular cup and ball and the femoral cup, the members are assembled together so that the femoral cup can articulate on the acetabular ball. The prosthesis of the invention has a wide range of motion and substantially improved tribology. As the femoral cup is articulated, the edge of the femoral cup moves into a space located between the acetabular cup and the acetabular ball and thereby becomes restrained, thus reducing the likelihood of dislocation during extreme ranges of motion.

Interlocking reverse hip and revision prosthesis

A reverse hip prosthesis comprising an acetabular cup for implanting in an acetabular socket. The acetabular cup is secured to the acetabular socket of the pelvis using fasteners. The acetabular cup has a stem extending from the center of a concave portion thereof and an acetabular ball is attached to the stem, preferably by means of a Morse taper. A femoral implant is provided with a femoral cup attached to the proximal end thereof. The femoral cup has a stem which can be constructed in a modular fashion with several stem lengths in order to accommodate the various sizing requirements of different patients. After implantation of the acetabular cup and ball and the femoral cup, the members are assembled together so that the femoral cup can articulate on the acetabular ball. The prosthesis of the invention has a wide range of motion and substantially improved tribology. As the femoral cup is articulated, the edge of the femoral cup moves into a space located between the acetabular cup and the acetabular ball and thereby becomes restrained, thus reducing the likelihood of dislocation during extreme ranges of motion.

Extended radius prosthesis

Interlocking acetabular fixation screws and their combination with a reverse hip acetabular cup

상호결합 관절구 고정 나사는 해면골에 나사 결합하기 위한 나사진 축과 리버스 힙 관절구 덮개에 테이퍼진 나사진 나사 구멍에 나사 결합되는 테이퍼진 나사진 헤드를 갖는다. 리버스 힙 관절구 덮개는 중앙 스템을 갖는다. 나사부를 가진 나사 구멍은 관절구 공동의 뼈를 천공하는 각도로 천공되며, 상기 각도는 중앙 스템과 접촉하지 않고 중앙 스템으로부터 방해받지 않고 나사를 배치하고 나사를 단단히 조일 수 있게 하는 각도이다.

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.