WO2001005336A1 - Implant designed to fill up cartilage and bone defects in joints - Google Patents

Implant designed to fill up cartilage and bone defects in joints Download PDF

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Publication number
WO2001005336A1
WO2001005336A1 PCT/EP2000/005556 EP0005556W WO0105336A1 WO 2001005336 A1 WO2001005336 A1 WO 2001005336A1 EP 0005556 W EP0005556 W EP 0005556W WO 0105336 A1 WO0105336 A1 WO 0105336A1
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WO
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Patent type
Prior art keywords
implant
cartilage
slider
bioceramic
bone
Prior art date
Application number
PCT/EP2000/005556
Other languages
German (de)
French (fr)
Inventor
Hans Grundei
Wolfram Thomas
Original Assignee
Eska Implants Gmbh & Co.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/30756Cartilage endoprostheses
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
    • A61L27/00Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/02Inorganic materials
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/38Joints for elbows or knees
    • A61F2/3859Femoral components
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30108Shapes
    • A61F2002/30199Three-dimensional shapes
    • A61F2002/30299Three-dimensional shapes umbrella-shaped or mushroom-shaped
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30316The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30535Special structural features of bone or joint prostheses not otherwise provided for
    • A61F2002/30604Special structural features of bone or joint prostheses not otherwise provided for modular
    • A61F2002/30616Sets comprising a plurality of prosthetic parts of different sizes or orientations
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/30767Special external and/or bone-contacting surfaces, e.g. coating for improving bone ingrowth
    • A61F2/30771Special external and/or bone-contacting surfaces, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes, grooves
    • A61F2002/30878Special external and/or bone-contacting surfaces, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes, grooves with non-sharp protrusions, for instance contacting the bone for anchoring, e.g. keels, pegs, pins, posts, shanks, stems, struts
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/3094Designing or manufacturing processes
    • A61F2002/30971Laminates, i.e. layered products
    • A61F2002/30973Two joined adjacent layers having complementary interlocking protrusions and recesses
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2230/00Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0063Three-dimensional shapes
    • A61F2230/0093Umbrella-shaped, e.g. mushroom-shaped
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2310/00Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00005The prosthesis being constructed from a particular material
    • A61F2310/00011Metals or alloys
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2310/00Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00005The prosthesis being constructed from a particular material
    • A61F2310/00011Metals or alloys
    • A61F2310/00023Titanium or titanium-based alloys, e.g. Ti-Ni alloys
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2310/00Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00005The prosthesis being constructed from a particular material
    • A61F2310/00179Ceramics or ceramic-like structures
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2310/00Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00005The prosthesis being constructed from a particular material
    • A61F2310/00179Ceramics or ceramic-like structures
    • A61F2310/00185Ceramics or ceramic-like structures based on metal oxides
    • A61F2310/00203Ceramics or ceramic-like structures based on metal oxides containing alumina or aluminium oxide
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2310/00Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00005The prosthesis being constructed from a particular material
    • A61F2310/00179Ceramics or ceramic-like structures
    • A61F2310/00185Ceramics or ceramic-like structures based on metal oxides
    • A61F2310/00239Ceramics or ceramic-like structures based on metal oxides containing zirconia or zirconium oxide ZrO2

Abstract

The invention concerns an implant (1) designed to make up for cartilage and bone defects (10) in joints. Said implant has a body frame (2) comprising at least an anchoring plug (3) to be driven into the bone and a front plate (4) coupled to said plug. The front plate (4) is incorporated in a sliding head (5) made of a biocompatible and abrasion-resistant material. The surface of the sliding head (5) opposite the anchoring plug (3) is designed as a sliding surface (6). In another embodiment, the implant has a base element comprising at least an anchoring plug to be driven into the bone and also a sliding head produced in a biocompatible and abrasion-resistant material.

Description

Implant for filling bone and cartilage defects in joints

Description:

The present invention is concerned with an implant for filling bone and cartilage defects in joints such as the knee joint.

Occurring cartilage and bone damage in joints may in principle be addressed with the implantation of a total replacement implant. Due to the massiveness of such interference, but it is trying to keep as much natural material in the joint, as at all possible. This of course is not true in all indications. So it is for example in a tumor involvement often not possible to avoid the implantation of a total hip replacement. But there are often defects that are quite accessible to a gentler treatment. Thus, it is possible for example, to treat an outpatient basis by means of arthroscopic surgery cartilage and bone defects, cartilage that the patient is transplanted from a less loaded hinge portion into the cartilage defect area. Such cartilage defects are the result of, for example, osteoarthritis, which is associated with excessive and premature wear of cartilage, whereby the coating, which covers the bone ends is getting thinner, and it eventually leads to bone defects. Another surgical technique, which deals with this subject is, for example, the cartilage cell transplantation, in which an attempt is made by genetic engineering cell growth of autologous cartilage cells to build by injection of cultured cells in the cartilage and bone defects of the cartilage again. The goal of all of these efforts is to produce the natural function of the joint by means of the body's material or material obtained therefrom again.

However, it is considered disadvantageous that cartilage material is removed from a healthy joint area in the described method of cartilage transplantation, to be used in the field of cartilage and bone defects, and to heal there. In the removal of cartilage material from the healthy range is thus taken consciously weaken the healthy cartilage material itself in purchase to repair the cartilage defect.

Against this background, the object of the present invention to remedy this situation, so specify an implant to fill cartilage and bone defects in which no additional weakening of healthy cartilage material of the patient is made. The implant is to be accessible to the arthroscopic surgery.

This object is achieved by the implant with the features of claim 1, or alternatively of claim 8. Advantageous further developments are specified in the respective dependent claims.

Accordingly, the inventive implant according to the first alternative, a reinforcing body having at least one driven into the bone anchor pin and an associated head plate. This is embedded in a slider made of a biocompatible abrasion-resistant material whose surface facing away from the anchoring pin is formed as a sliding surface.

The implant according to the invention thus takes the place of cartilage material which has been first removed in the previous arthroscopic surgery of a healthy range and served to fill the cartilage and bone defect. The implant has a nail-like structure. Thus, the implant with its anchoring pin which particularly preferably has a tapered end, taken by a plurality of punches by means of a percussion instrument on the head slider and into the bone on the bottom of cartilage and bone defect is. On the at least one anchoring pin, the head plate of the optionally metallic reinforcing body is seated. This is embedded or molded into a biocompatible, abrasion resistant material forming the sliding partner for the natural sliding surfaces of the other joint part. After impaction of the implant into the defect cartilaginous connective tissue granulated into a possible gap between the slider and the natural cartilage. This is also true when using several inventive implants to fill a larger cartilage and bone defect. The spaces between multiple implants granulate to after a certain period of cartilaginous tissue. The surface or sliding surface of the padded with one or more implants, cartilage and bone defect then assumes the role of natural cartilage.

When filling a defect with several implants, the distances of the anchor pins need to be set as possible so that the sliding heads in the peripheral region are in contact, but do not overlap, as they would otherwise form a stepped surface, which could not perform any function of a sliding surface. This is achieved in that in the engagement placer be used which have the same dimensions as the then next used implants. The operator first sets to a placer with its representative of the anchor pin of the implant pin on the bottom of the to be filled cartilage and bone defect and marked by tapping lightly on the head plate, the point at which later the anchor pin is driven into the bone. Thereafter, a second placer is so set that its head plate just touches that of the first Plazierers and the location at which the anchoring pin of the second implant to be driven is marked also by a light blow on the head plate. These steps will the surgeon before until he has filled almost completely by sufficient number and use any different size of the implant to the bone and cartilage defect model with the placers. He then removes the placer and then drives the appropriate implants with their anchoring pins on the respective marked places in the bone.

A particularly strong hold of the slider on the reinforcing body can be achieved when the top plate is provided with openings through which material of the slider engages. A particularly intimate connection between the head plate and slide head is achieved when the slider is molded with the head plate.

The biocompatible material of the slider can be for example polyurethane. Particularly preferably, the selection of the biocompatible material of the slider is as bioceramics. This may advantageously be a glass ceramic, an alumina ceramic or zirconia. It can be used with advantage also a composite material, as described for example in EP-B-0502082 in connection with a composite socket.

Alternatively, it is proposed that the inventive implant has a base body with at least one driven into the bone anchor pin and an associated slider. At least the slider is composed of a biocompatible, abrasion resistant material whose surface remote from the anchor pin is designed as a sliding surface. In the present case, therefore, no longer a reinforcing body is present compared to the first proposal. This simplifies the production of the implant and therefore reduces costs. Thus, the base body and the slider can be made of the same material according to an advantageous further development of the second proposed solution. In that the base body and slider are formed integrally is particularly preferred in this embodiment.

As the material for the biocompatible material again polyurethane, bio comes (glass ceramics, alumina ceramics, zirconia ceramics) into account as well as the already above-mentioned composite material.

Also, a completely metallic implant is made of titanium for example is also conceivable.

It is particularly preferred in both alternative solutions if the body height of the slider is located in the range between 2 and 6 mm. If there are several used implants implants can be used with different installation heights quite depending on the shape of the cartilage and bone defect. The aim is to produce a very smooth, conformal to the sliding surface of the cartilage and bone defect, subsequent cartilage surface. Moreover, the structural height of the slider can lead to stability of the ligaments.

It is preferably provided that the slide head is circular with a diameter ranging from 6 to 16 mm. To fill a cartilage and bone defect implants can be used with different diameters in order to fill in as the existing defect as possible and optimally the entire surface.

The invention is explained in more detail below with reference to two embodiments. Here: Figure 1 is the schematic view of the implant of the invention according to the first proposal,

Figure 2 shows the view on the top plate of the reinforcing of

Implant according to Figure 1 from below,

Figure 3 is a schematic view of the implant according to the second proposed solution

Figure 4 schematically illustrates the filling of a cartilage and

Bone defect in a condyle of the knee joint, and

Figure 5 is a schematic side view of the condyle of a knee joint with padded cartilage and bone defect.

Subsequently, the same parts are designated by the same numerals.

In Figure 1, the implant 1 is shown schematically. It has an outer pouch 2 which is presently equipped with only one anchoring pin. 3 To the anchor pin 3, the head plate 4 is attached. The outer pouch 2 is preferably made of metal, for example titanium.

The head plate 4 is embedded in a slider 5, the material having the said properties in terms of biocompatibility and resistance to abrasion. The anchor pin 3 to the remote surface of the slider 5 is formed as a sliding surface 6, as in this case indicates the rounding in FIG. 1 The sliding surface 6 works with the natural cartilage of the other joint part. The slider 5 has a body height H and a diameter D. Of different diameters D and different construction height H to various implants can be represented, which are suitable for forming an outwardly substantially continuous sliding surface in the connection to the remaining natural cartilage, as will be explained further below with reference to FIG. 5

Figure 2 shows the view of the reinforcing body 2 of the implant according to Figure 1 from below. The anchor pin 3 is attached to the head plate 4 and is surrounded by the openings 7. The openings 7 provide a bond between the reinforcing body 2 and the material of the slider 5. For this purpose, the slider 5 can be correspondingly designed lugs (not shown) which can engage in the openings 7, thus producing a positive connection. but preferably a casting of the mass of the slider 5 through the perforations 7 therethrough is.

Figure 3 shows a schematic side view of the implant 1 '. In contrast to the proposal in accordance with Figure 1 is here the slider 5 'integrally formed with the anchor pin 3' of the body 2 '. Again, the said anchor pin 3 'facing away from the surface of the slider 5' is formed as a sliding surface 6 '. The implant 1 'is not uniform but composed of ceramic or metal. With regard to the construction height H and the diameter D of the slider 5 'applies the appropriate as set forth above for the first embodiment.

Figure 4 shows schematically how a cartilage and bone defect 10 in a condyle 9 can be filled on the femur. 8 be a number of implants 1 of different size, ie, with different diameters of the sliding heads and, optionally, different construction heights H of the sliding heads enable the creation of an individual total implant for maximum filling of the cartilage and bone defect 10. Remaining gaps 12 between the individual implants 1 during the ausgranuliert time of cartilaginous tissue.

Figure 5 is schematically indicated how a cartilage and bone defect 10 is filled in the natural cartilage layer 11 on the condyles of a knee joint. Several single implants 1 are arranged and driven into the bone as to produce the smoothest possible, subsequent to the natural cartilage layer 11 sliding surface.

With the implant, it is possible to treat the relatively easy-to-debug cartilage and bone defects specifically without serious intervention is necessary. Rather, the implant by way of arthroscopic surgery can be implanted. The patient remains spared to undergo even at occurrence of simple cartilage defects of a total resection of the joint. Over several years, a manufactured with the inventive implant total implant can ensure that the patient can be symptom-free move articulated over several years.

Furthermore, it is noted that the different construction heights of the implants as they are arranged, for example according to Figure 4, also serve to lead to filling of the defect to a stability of the sidebands. In the area of ​​a defect that is the sideband concerned slacks. After filling of the cartilage and bone defect with the implant it will be natural tension again, which is conducive to the overall stability of the joint.

Claims

claims:
1. Implant (1) for filling of cartilage and bone defects (10) in joints comprising an outer pouch (2) with at least one driven into the bone anchoring pin (3) and an associated cover plate (4) which is embedded in a the slider (5) of a biocompatible, abrasion resistant material, the said anchoring pin (3) facing away from the surface as a sliding surface (6) is formed.
2. The implant of claim 1, wherein the head plate (4) provided with perforations (7).
3. The implant according to claim 1 or 2, wherein the biocompatible material of the slider (5) is polyurethane.
4. The implant according to claim 1 or 2, wherein the biocompatible material of the slider (5) is a bioceramic.
5. The implant according to claim 4, wherein said bioceramic is a glass ceramic.
6. The implant of claim 4, wherein said bioceramic is an alumina ceramic.
7. The implant of claim 4, wherein the bioceramic is a zirconium oxide ceramic.
8. Implant (1 ') for filling of cartilage and bone defects (10) in the joints, comprising a base body (2') with at least one driven into the bone anchoring pin (3 ') and an associated slider (5') of a is formed biocompatible, abrasion resistant material having the anchor pin (3 ') facing away from the surface as a sliding surface (6').
9. The implant of claim 8, wherein the base body (2 ') and the glide head (5') are made of the same material.
10. The implant of claim 9, wherein the base body (2 ') and slider (5') are integrally formed.
11. The implant according to one of claims 8 to 10, wherein the biocompatible material is polyurethane.
12. The implant according to one of claims 8 to 10, wherein the biocompatible material is a bioceramic.
13. The implant of claim 12, wherein said bioceramic is a glass ceramic.
14. The implant of claim 12, wherein the bioceramic is an alumina ceramic.
15. The implant of claim 12, wherein said bioceramic is a zirconium oxide ceramic.
16. The implant of claim 10, wherein the base body (2 ') and the glide head (5') of biocompatible metal.
17. Implant according to one of claims 1 to 15, in which the construction height (H) of the slider (5) in the range between 2 and 6 mm.
8. The implant according to one of claims 1 or 16, wherein the slider (5) is circular with a diameter (D) in the range of 6 - 16 mm is formed.
PCT/EP2000/005556 1999-07-16 2000-06-16 Implant designed to fill up cartilage and bone defects in joints WO2001005336A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE19932710.6 1999-07-16
DE19932710 1999-07-16
DE1999133382 DE19933382A1 (en) 1999-07-16 1999-07-21 Füllimplantat for cartilage and bone defects in a joint
DE19933382.3 1999-07-21

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US8864827B2 (en) 2000-05-01 2014-10-21 Arthrosurface Inc. System and method for joint resurface repair
WO2014202685A1 (en) * 2013-06-18 2014-12-24 Ceramtec Gmbh Ceramic components for replacing joint surfaces
US8926615B2 (en) 2002-12-03 2015-01-06 Arthrosurface, Inc. System and method for retrograde procedure
US8961614B2 (en) 2004-11-22 2015-02-24 Arthrosurface, Inc. Articular surface implant and delivery system
US9044343B2 (en) 2002-12-03 2015-06-02 Arthrosurface Incorporated System for articular surface replacement
US9055955B2 (en) 2000-05-01 2015-06-16 Arthrosurface Inc. Bone resurfacing system and method
US9066716B2 (en) 2011-03-30 2015-06-30 Arthrosurface Incorporated Suture coil and suture sheath for tissue repair
US9204873B2 (en) 2000-05-01 2015-12-08 Arthrosurface Incorporated System and method for joint resurface repair
US9283076B2 (en) 2009-04-17 2016-03-15 Arthrosurface Incorporated Glenoid resurfacing system and method
US9351745B2 (en) 2003-02-24 2016-05-31 Arthrosurface Incorporated Trochlear resurfacing system and method
US9358029B2 (en) 2006-12-11 2016-06-07 Arthrosurface Incorporated Retrograde resection apparatus and method
US9357989B2 (en) 2000-05-01 2016-06-07 Arthrosurface Incorporated System and method for joint resurface repair
US9468448B2 (en) 2012-07-03 2016-10-18 Arthrosurface Incorporated System and method for joint resurfacing and repair
US9492200B2 (en) 2013-04-16 2016-11-15 Arthrosurface Incorporated Suture system and method
WO2016186216A1 (en) * 2015-05-21 2016-11-24 テルモ株式会社 Implant member
US9662126B2 (en) 2009-04-17 2017-05-30 Arthrosurface Incorporated Glenoid resurfacing system and method
US9861492B2 (en) 2014-03-07 2018-01-09 Arthrosurface Incorporated Anchor for an implant assembly

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2622592A (en) * 1952-01-05 1952-12-23 Rosenstein Max X-ray marker for artificial femoral heads
FR2242068A1 (en) * 1973-08-31 1975-03-28 Oscobal Ag Universal artificial joint elements - consisting of articulated threaded bars with adapted surface
DE2933174A1 (en) * 1978-10-06 1980-04-10 Sulzer Ag Implant for partial replacement of a sliding surface of a human joint
FR2642301A1 (en) * 1989-01-31 1990-08-03 Laboureau Jacques Philippe Composite prosthesis, intended in particular for replacement of the patella, the tibial plates, the cotyles or any other articulation, and providing a shock-absorbing effect
WO1991008000A1 (en) * 1989-11-28 1991-06-13 Eska Medical Lübeck Medizintechnik Gmbh & Co. JOINT ENDOPROSTHESIS WITH Al2O3 CERAMIC HEAD AND A COMPOSITE SOCKET AND PROCESS FOR MAKING IT
EP0505634A1 (en) * 1991-03-29 1992-09-30 Kyocera Corporation A prosthesis
WO1996024302A1 (en) * 1995-02-07 1996-08-15 Matrix Biotechnologies, Inc. Surgical implantation of cartilage repair unit

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2622592A (en) * 1952-01-05 1952-12-23 Rosenstein Max X-ray marker for artificial femoral heads
FR2242068A1 (en) * 1973-08-31 1975-03-28 Oscobal Ag Universal artificial joint elements - consisting of articulated threaded bars with adapted surface
DE2933174A1 (en) * 1978-10-06 1980-04-10 Sulzer Ag Implant for partial replacement of a sliding surface of a human joint
FR2642301A1 (en) * 1989-01-31 1990-08-03 Laboureau Jacques Philippe Composite prosthesis, intended in particular for replacement of the patella, the tibial plates, the cotyles or any other articulation, and providing a shock-absorbing effect
WO1991008000A1 (en) * 1989-11-28 1991-06-13 Eska Medical Lübeck Medizintechnik Gmbh & Co. JOINT ENDOPROSTHESIS WITH Al2O3 CERAMIC HEAD AND A COMPOSITE SOCKET AND PROCESS FOR MAKING IT
EP0502082B1 (en) 1989-11-28 1995-11-08 ESKA Implants GmbH & Co. Joint endoprosthesis with Al2O3 ceramic head and a composite socket and process for making it
EP0505634A1 (en) * 1991-03-29 1992-09-30 Kyocera Corporation A prosthesis
WO1996024302A1 (en) * 1995-02-07 1996-08-15 Matrix Biotechnologies, Inc. Surgical implantation of cartilage repair unit

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9357989B2 (en) 2000-05-01 2016-06-07 Arthrosurface Incorporated System and method for joint resurface repair
US9204873B2 (en) 2000-05-01 2015-12-08 Arthrosurface Incorporated System and method for joint resurface repair
US8864827B2 (en) 2000-05-01 2014-10-21 Arthrosurface Inc. System and method for joint resurface repair
US9055955B2 (en) 2000-05-01 2015-06-16 Arthrosurface Inc. Bone resurfacing system and method
US9044343B2 (en) 2002-12-03 2015-06-02 Arthrosurface Incorporated System for articular surface replacement
US8926615B2 (en) 2002-12-03 2015-01-06 Arthrosurface, Inc. System and method for retrograde procedure
US9351745B2 (en) 2003-02-24 2016-05-31 Arthrosurface Incorporated Trochlear resurfacing system and method
US9931211B2 (en) 2003-02-24 2018-04-03 Arthrosurface Incorporated Trochlear resurfacing system and method
US8961614B2 (en) 2004-11-22 2015-02-24 Arthrosurface, Inc. Articular surface implant and delivery system
US9358029B2 (en) 2006-12-11 2016-06-07 Arthrosurface Incorporated Retrograde resection apparatus and method
US10045788B2 (en) 2006-12-11 2018-08-14 Arthrosurface Incorporated Retrograde resection apparatus and method
US9283076B2 (en) 2009-04-17 2016-03-15 Arthrosurface Incorporated Glenoid resurfacing system and method
US9662126B2 (en) 2009-04-17 2017-05-30 Arthrosurface Incorporated Glenoid resurfacing system and method
US9066716B2 (en) 2011-03-30 2015-06-30 Arthrosurface Incorporated Suture coil and suture sheath for tissue repair
US9468448B2 (en) 2012-07-03 2016-10-18 Arthrosurface Incorporated System and method for joint resurfacing and repair
US9492200B2 (en) 2013-04-16 2016-11-15 Arthrosurface Incorporated Suture system and method
WO2014202685A1 (en) * 2013-06-18 2014-12-24 Ceramtec Gmbh Ceramic components for replacing joint surfaces
US9861492B2 (en) 2014-03-07 2018-01-09 Arthrosurface Incorporated Anchor for an implant assembly
US9931219B2 (en) 2014-03-07 2018-04-03 Arthrosurface Incorporated Implant and anchor assembly
US9962265B2 (en) 2014-03-07 2018-05-08 Arthrosurface Incorporated System and method for repairing articular surfaces
WO2016186216A1 (en) * 2015-05-21 2016-11-24 テルモ株式会社 Implant member

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