DE8701242U1 - Artificial hip socket - Google Patents
Artificial hip socketInfo
- Publication number
- DE8701242U1 DE8701242U1 DE8701242U DE8701242U DE8701242U1 DE 8701242 U1 DE8701242 U1 DE 8701242U1 DE 8701242 U DE8701242 U DE 8701242U DE 8701242 U DE8701242 U DE 8701242U DE 8701242 U1 DE8701242 U1 DE 8701242U1
- Authority
- DE
- Germany
- Prior art keywords
- hip joint
- artificial hip
- joint socket
- socket
- socket according
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
- 210000004394 hip joint Anatomy 0.000 claims description 26
- 239000002639 bone cement Substances 0.000 claims description 13
- 239000000853 adhesive Substances 0.000 claims description 10
- 230000001070 adhesive effect Effects 0.000 claims description 10
- 239000011324 bead Substances 0.000 claims description 9
- 210000000588 acetabulum Anatomy 0.000 claims description 5
- 238000004873 anchoring Methods 0.000 claims description 5
- 210000003049 pelvic bone Anatomy 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims 1
- 239000004568 cement Substances 0.000 description 5
- 210000000988 bone and bone Anatomy 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 210000004197 pelvis Anatomy 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 241001122767 Theaceae Species 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS 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
- A61F2/00—Filters 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
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/34—Acetabular cups
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS 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
- A61F2/00—Filters 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
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS 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
- A61F2/00—Filters 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
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/30721—Accessories
- A61F2/30724—Spacers for centering an implant in a bone cavity, e.g. in a cement-receiving cavity
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS 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
- A61F2/00—Filters 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
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
- A61F2002/3082—Grooves
- A61F2002/30827—Plurality of grooves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS 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
- A61F2/00—Filters 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
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/34—Acetabular cups
- A61F2002/3412—Acetabular cups with pins or protrusions, e.g. non-sharp pins or protrusions projecting from a shell surface
- A61F2002/342—Acetabular cups with pins or protrusions, e.g. non-sharp pins or protrusions projecting from a shell surface the outer shell having circumferential protrusions parallel to the equatorial plane, e.g. circumferential fins or wings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS 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
- A61F2/00—Filters 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
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/34—Acetabular cups
- A61F2002/3429—Acetabular cups with an integral peripheral collar or flange, e.g. oriented away from the shell centre line
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS 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
- A61F2/00—Filters 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
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/34—Acetabular cups
- A61F2002/3429—Acetabular cups with an integral peripheral collar or flange, e.g. oriented away from the shell centre line
- A61F2002/343—Acetabular cups with an integral peripheral collar or flange, e.g. oriented away from the shell centre line partial, i.e. not extending along the entire equatorial circumference
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS 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
- A61F2/00—Filters 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
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2002/4631—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor the prosthesis being specially adapted for being cemented
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Description
«te e«"tea"
Die Erfindung betrifft eine künstliche Hüftgelenks=- pfanne zur Verankerung im Acetabulum des menschlichen Beckenknochehs mit Hilfe eines aushärtenden Knochenzements, mit mindestens teilweise umlaufenden Haftnuten in der Aussenflache.The invention relates to an artificial hip joint socket for anchoring in the acetabulum of the human pelvic bone with the aid of a hardening bone cement, with at least partially circumferential adhesion grooves in the outer surface.
Aus der DE-OS 25 23 267 oder der EU-OS 0 149 425 ist eine - allerdings zementfreie - Hüftgelenkspfanne bekannt, die an ihrer Aussenflache umlaufende Haftnuten aufweist, in welche das angrenzende natürliche Knochengewebe hineinwachsen soll, um auf diese Weise eine gute Verankerung der Pfanne zu ermöglichen.From DE-OS 25 23 267 or EU-OS 0 149 425, a - albeit cement-free - hip joint socket is known, which has circumferential adhesion grooves on its outer surface, into which the adjacent natural bone tissue is intended to grow in order to enable good anchoring of the socket.
Ausserdem sind künstliche Hüftgelenkspfannen der eingangs genannten Art - auch als zementierbare Pfanne - bekannt. Beim Einsetzen einer derartigen Pfanne in das Zementbett wird Knochenzement in die Haftnuten hineingedrückt, wodurch ebenfalls eine feste und dauerhafte Verankerung zwischen Hüftgelenkspfanne und Beckenknochen verwirklicht werden soll. Langzeitergebnisse haben jedoch gezeigt, dass eine derartig verankerte Hüftgelenkspfanne wegen der starken Dauerbeanspruchung sich gleichwohl vom Zement lockert, sich. _* ~~ 'J% verförmt und bei grösserer Verformung aus den in die Haftnuten eingreifenden Zementansätzen löst.In addition, artificial hip joint sockets of the type mentioned above - also known as cementable sockets - are known. When such a socket is inserted into the cement bed, bone cement is pressed into the adhesive grooves, which is also intended to create a firm and permanent anchoring between the hip joint socket and the pelvic bone. Long-term results have shown, however, that a hip joint socket anchored in this way nevertheless becomes loose from the cement due to the strong, constant stress, becomes deformed and, if the deformation is greater, detaches from the cement attachments engaging in the adhesive grooves.
Aufgabe der Erfindung ist es daher, eine zementierbare Hüftgelenkspfanne der eingangs genannten Art derart weiterzubilden, dass eine verbesserte Veran-The object of the invention is therefore to further develop a cementable hip joint cup of the type mentioned at the beginning in such a way that an improved
t It I
Ii tiIi ti
tests tt tests tt
ankerUng im Knochenzement möglich ist.anchoring in the bone cement is possible.
Diese Aufgabe wird erfindungsgemäss dadurch gelöst, dass die Haftnuten einen eine Hinterschneidung aufweisenden Querschnitt besitzen.This object is achieved according to the invention in that the adhesive grooves have a cross-section with an undercut.
Die Vorteile der Erfindung liegen insbesondere darin, dass sich beim Einsetzen der Hüftgelenkspfanne in das weiche Zemsntbett der Knochenzement in die sich nach innen erweiternden Haftnuten hineindrückt und die hinterschnittenen Haftnuten ausfüllt. Selbst wenn sich bei der erfindungsgemässen Hüftgelenkspfanne nach längerer Betriebszeit die Verbindung an der Grenzschicht zwischen Knochenzement und Hüftgelehkspfanne lösen sollte, bleibt die Hüftgelenkspfanne den mit den hinterschnittenen Haftnuten formschlüssig mit den entsprechenden Haftwulsten des Knochenzements verbunden, wodurch eine grössere Verformung der Hüftgelenkspfanne und eine daraus resultierende Ablösung der Pfanne unterbleibt.The advantages of the invention are in particular that when the hip joint socket is inserted into the soft cement bed, the bone cement is pressed into the inwardly expanding adhesive grooves and fills the undercut adhesive grooves. Even if the connection at the boundary layer between the bone cement and the hip joint socket should come loose after a long period of use in the hip joint socket according to the invention, the hip joint socket remains positively connected to the corresponding adhesive beads of the bone cement via the undercut adhesive grooves, which prevents any major deformation of the hip joint socket and the resulting detachment of the socket.
Besonders bevorzugt ist ausserdem am Pfannenrand ein nach aussen gerichteter Ringflansch vorgesehen, der einen umgebogenen, gegen das Becken gerichteten Randwulst besitzt. Dieser Randwulst verhindert, dass Knochenzement-Teilchen, welche durch die Pfannenbeanspruchung herausbrechen können, in die Innenfläche der Gelenkspfanne wandern und dort die glatte Gelenkfläche beschädigen, wodurch die Lebensdauer des Hüftgelenks erheblich reduziert würde.It is also particularly preferred to provide an outward-facing ring flange on the edge of the socket, which has a bent edge bead directed towards the pelvis. This edge bead prevents bone cement particles, which can break off due to the stress on the socket, from migrating into the inner surface of the joint socket and damaging the smooth joint surface there, which would significantly reduce the lifespan of the hip joint.
Besonders bevorzugt ist der Ringflansch gegen die Ebene des Pfannenrandes radial auswärts - gegen das Becken hin - um etwa 5 bis 20° geneigt, und der Randwulst läuft nach oben spitz aus. Auf diese Weise be-It is particularly preferred that the ring flange is inclined radially outwards against the plane of the rim of the socket - towards the pelvis - by about 5 to 20°, and the edge bead tapers to a point at the top.
t tt t
I If. i iI If. i i
- 5- 5
ansprucht der Randwulst wenig Raum und schützt gleichwohl wirkungsvoll gegen das Eindringen von Zementteilchen in die Gelenkfläche.The edge bead takes up little space and nevertheless effectively protects against the penetration of cement particles into the joint surface.
Besonders bevorzugt sind auf der Aussenfläche der Hüftgelenkspfanne noch mindestens teilweise Umlaufende Distanzstege angeordnet, die sicherstellen, dass die Aussenfläche del: Hüftgelenkspfanne allseitig einen vorgegebenen Mindestabstand vom Knochengewebe einnimmt, d.h., dass zwischen Acetabulum und der Hüftgelenkspfanne eine gleichmässig dicke Schicht aus Knochenzement gegeben ist, so dass die Hüftgelenkspfanne allseitig im Knochenzement liegt und befestigt ist.Particularly preferably, spacer bars are arranged on the outer surface of the hip joint socket, at least partially, which ensure that the outer surface of the hip joint socket has a predetermined minimum distance from the bone tissue on all sides, i.e. that there is a uniformly thick layer of bone cement between the acetabulum and the hip joint socket, so that the hip joint socket lies and is secured in the bone cement on all sides.
Vorteilhafte Weiterbildungen der Erfindung sind durch die Merkmale der Unteransprüche gekennzeichnet.Advantageous developments of the invention are characterized by the features of the subclaims.
Im folgenden wird ein Ausführungsbeispiel der Erfindung anhand der Zeichnung näher erläutert.In the following, an embodiment of the invention is explained in more detail with reference to the drawing.
Es zeigen:Show it:
Fig. 1 einen Querschnitt durch eine Hüftgelenkspfanne; und Fig. 1 a cross-section through an acetabulum; and
Fig. 2 eine Aufsicht auf die Hüftgelenkspfanne gemäss Fig. 1.Fig. 2 is a top view of the acetabulum according to Fig. 1.
In den Fig. 1 und 2 ist eine Hüftgelenkspfanne 2 im Querschnitt und in Aufsicht dargestellt. Die Hüftgelenkspfanne 2 besitzt eine etwa halbkugelförmige Aussenfläche 4 und eine halbkugelförmige Innenfläche 6, in welcher der natürliche oder künstliche Femur-In Fig. 1 and 2, a hip joint socket 2 is shown in cross-section and in plan view. The hip joint socket 2 has an approximately hemispherical outer surface 4 and a hemispherical inner surface 6, in which the natural or artificial femur
köpf lagert. Die Hüftgelenkspfänne 2 besteht aus einem geeigneten Künststoff, z.B. Polyäthylen.head. The hip joint socket 2 is made of a suitable plastic, e.g. polyethylene.
In die Äussenfläche 4 sind konzentrische Haftnuten 5 eingearbeitet, deren Querschnitt eine Hinterschneidung 5a aufweist, d.h., deren Querschnitt zur Innenfläche 6 hin sich ausweitet. Zwischen einzelnen Haftnuten 5 sind nach aussen gerichtete umlaufende Distanzstege 7 angeordnet, deren Höhe die Mindestdicke des Knochenzementbettes festlegt.Concentric adhesive grooves 5 are incorporated into the outer surface 4, the cross-section of which has an undercut 5a, i.e. the cross-section of which widens towards the inner surface 6. Between individual adhesive grooves 5, circumferential spacer webs 7 are arranged, pointing outwards, the height of which determines the minimum thickness of the bone cement bed.
Der umlaufende Pfannenrand 10 geht in einen nach aussen gerichteten Ringflansch 14 über, der einen aüfwärtsgerichteten Randwulst 16 besitzt. Der Rihgflansch 14 ist gegen die Ebene 12 des Pfannenrandes 10 radial nach aussen um etwa 5 bis 20° ansteigend ausgebildet.The surrounding edge of the pan 10 merges into an outward-facing ring flange 14, which has an upward-facing edge bead 16. The ring flange 14 is designed to rise radially outwards by approximately 5 to 20° relative to the plane 12 of the edge of the pan 10.
Der Querschnitt des Randwulstes 16 läuft nach oben spitz aus. Gemäss Fig. 2 sind in der Äussenfläche 4 mehrere Quernuten 9 vorgesehen, die sich beim Einsetzen in das Knochenzementbett ebenfalls mit Knochenzement füllen und eine Rotation der Hüftgelenkspfänne besonders wirksam verhindern.The cross-section of the edge bead 16 tapers to a point at the top. According to Fig. 2, several transverse grooves 9 are provided in the outer surface 4, which also fill with bone cement when inserted into the bone cement bed and prevent rotation of the hip joint cup particularly effectively.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE8701242U DE8701242U1 (en) | 1986-05-15 | 1987-01-27 | Artificial hip socket |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3616420 | 1986-05-15 | ||
| DE8701242U DE8701242U1 (en) | 1986-05-15 | 1987-01-27 | Artificial hip socket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE8701242U1 true DE8701242U1 (en) | 1987-03-19 |
Family
ID=25843799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE8701242U Expired DE8701242U1 (en) | 1986-05-15 | 1987-01-27 | Artificial hip socket |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE8701242U1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0357270A1 (en) * | 1988-08-17 | 1990-03-07 | Minnesota Mining And Manufacturing Company | Rim-bearing acetabular component of hip joint prosthesis |
| FR2637177A1 (en) * | 1988-10-03 | 1990-04-06 | Icp Sa | Cup for cotyloid implant |
| US5217499A (en) * | 1988-08-17 | 1993-06-08 | Minnesota Mining And Manufacturing Company | Rim-bearing acetabular component of hip joint prosthesis |
| EP0832621A3 (en) * | 1996-09-30 | 1999-03-17 | Johnson & Johnson Professional, Inc. | Implantable article with ablated surface and method of forming same |
| EP1852091A1 (en) * | 2006-05-03 | 2007-11-07 | Benoist Girard Sas | Prosthetic acetabular cup with outwardly projecting flange |
-
1987
- 1987-01-27 DE DE8701242U patent/DE8701242U1/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0357270A1 (en) * | 1988-08-17 | 1990-03-07 | Minnesota Mining And Manufacturing Company | Rim-bearing acetabular component of hip joint prosthesis |
| US5217499A (en) * | 1988-08-17 | 1993-06-08 | Minnesota Mining And Manufacturing Company | Rim-bearing acetabular component of hip joint prosthesis |
| FR2637177A1 (en) * | 1988-10-03 | 1990-04-06 | Icp Sa | Cup for cotyloid implant |
| EP0832621A3 (en) * | 1996-09-30 | 1999-03-17 | Johnson & Johnson Professional, Inc. | Implantable article with ablated surface and method of forming same |
| EP1852091A1 (en) * | 2006-05-03 | 2007-11-07 | Benoist Girard Sas | Prosthetic acetabular cup with outwardly projecting flange |
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