NL193791C - Joint prosthesis. - Google Patents
Joint prosthesis. Download PDFInfo
- Publication number
- NL193791C NL193791C NL9200070A NL9200070A NL193791C NL 193791 C NL193791 C NL 193791C NL 9200070 A NL9200070 A NL 9200070A NL 9200070 A NL9200070 A NL 9200070A NL 193791 C NL193791 C NL 193791C
- Authority
- NL
- Netherlands
- Prior art keywords
- cup
- shaped element
- anchoring
- spacer
- blind bore
- Prior art date
Links
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
- A61F2/30721—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
- A61F2/32—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
- A61F2/40—Joints for shoulders
- A61F2/4081—Glenoid components, e.g. 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
- A61F2/38—Joints for elbows or knees
-
- 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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30003—Material related properties of the prosthesis or of a coating on the prosthesis
- A61F2002/30004—Material related properties of the prosthesis or of a coating on the prosthesis the prosthesis being made from materials having different values of a given property at different locations within the same prosthesis
- A61F2002/30016—Material related properties of the prosthesis or of a coating on the prosthesis the prosthesis being made from materials having different values of a given property at different locations within the same prosthesis differing in hardness, e.g. Vickers, Shore, Brinell
-
- 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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30108—Shapes
- A61F2002/30199—Three-dimensional shapes
- A61F2002/30224—Three-dimensional shapes cylindrical
-
- 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
- A61F2002/30795—Blind bores, e.g. of circular cross-section
-
- 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
- A61F2002/30878—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with non-sharp protrusions, for instance contacting the bone for anchoring, e.g. keels, pegs, pins, posts, shanks, stems, struts
- A61F2002/30891—Plurality of protrusions
- A61F2002/30894—Plurality of protrusions inclined obliquely with respect to each other
-
- 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
-
- 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
-
- 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
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0063—Three-dimensional shapes
- A61F2230/0069—Three-dimensional shapes cylindrical
-
- 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
- A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2250/0014—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis
- A61F2250/0019—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis differing in hardness, e.g. Vickers, Shore, Brinell
-
- 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
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00005—The prosthesis being constructed from a particular material
- A61F2310/00353—Bone cement, e.g. polymethylmethacrylate or PMMA
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
1 1937911 193791
GewrichtsprotheseJoint prosthesis
De uitvinding heeft betrekking op een gewrichtsprothese voor bijvoorbeeld knie-, heup- of schoudergewricht, bestaande uit een gewelfd, bijvoorbeeld komvormig element voor samenwerking met een ander element van 5 het gewricht, welk gewelfd element door middel van een cementlaag in een uitsparing van het bot te bevestigen is, aan de cementzijde is voorzien van afstandsorganen die op het buitenoppervlak van het element uitsteken, en van telkens een blinde boring voor het opnemen van telkens een afstandselement, waarbij de materiaalhardheid van de afstandsorganen groter is dan die van het gewelfde element.The invention relates to a joint prosthesis for, for example, a knee, hip or shoulder joint, consisting of a vaulted, for instance cup-shaped element for cooperation with another element of the joint, which vaulted element by means of a cement layer in a recess of the bone can be attached, is provided on the cement side with spacers which protrude on the outer surface of the element, and in each case with a blind bore for accommodating in each case a spacer element, the material hardness of the spacer members being greater than that of the curved element.
Een dergelijke gewrichtsprothese, bij een heup ook wel genoemd een "acetabulumcup” dient als 10 vervanging van het natuurlijke gewricht, waartoe het bot op passende wijze wordt uitgehold, wordt bedekt met een laag cement waarna het komvormige element in het nog niet uitgeharde cement wordt gedrukt. De afstandhouders aan de buitenzijde verzorgen de juiste afstand tussen het element en het daaronder liggende bot, en verzorgen tevens de definitieve hechting met het cement nadat dit is uitgehard.Such a joint prosthesis, also referred to as an "acetabulum cup" in a hip, replaces the natural joint, for which the bone is appropriately hollowed out, is covered with a layer of cement, after which the cup-shaped element is pressed into the not yet hardened cement The outer spacers maintain the correct distance between the element and the bone underneath, as well as provide final bonding with the cement after it has cured.
Bekende acetabulumcups zijn ondermeer beschreven in Amerikaanse octrooi 4.566.138. Dergelijke cups 15 bestaan uit een lichaam van kunststofmateriaal, dat aan de buitenzijde is bedekt met een metaallaag. De afstandorganen zijn door middel van ultrasoon lassen op deze metaallaag bevestigd. De afstandsorganen zijn vervaardigd uit acrylmateriaal, bijvoorkeur polymethylmethacrylaat (PMMA) waarmee een goede hechting van het acrylcement wordt verkregen.Known acetabular cups are described, inter alia, in U.S. Patent 4,566,138. Such cups 15 consist of a body of plastic material, which is covered on the outside with a metal layer. The spacers are attached to this metal layer by ultrasonic welding. The spacers are made of acrylic material, preferably polymethyl methacrylate (PMMA), which provides good adhesion of the acrylic cement.
De uitvinding beoogt de bevestiging tussen de afstandhouders en het komvormige element te verbeteren, 20 waarmee de metalen deklaag bij afstandsorganen van acrylmateriaal kan worden vermeden.The object of the invention is to improve the attachment between the spacers and the cup-shaped element, with which the metal covering layer can be avoided at spacers of acrylic material.
De prothese volgens de uitvinding onderscheidt zich doordat dat de blinde boring cilindrisch is gevormd, en elk afstandsorgaan een cilindrisch verankeringselement heeft, geschikt voor het vormen van een perspassing, op welk verankeringselement een verjongd deel aansluit, waarbij de diepte van de blinde boring groter is dan de lengte van het verankeringsdeel, een en ander zodanig dat het vrij liggende randdeel 25 van de blinde boring kan terugveren.The prosthesis according to the invention is distinguished in that the blind bore is cylindrically shaped, and each spacer has a cylindrical anchoring element, suitable for forming a press fit, to which anchoring element connects a tapered part, the depth of the blind bore being greater than the length of the anchoring part, all such that the exposed edge part 25 of the blind bore can spring back.
Dankzij het gebruik van een perspassing is de montage van de afstandhouder in het komvormige element uitermate simpel en goedkoop. Vanwege het feit dat het verankeringsorgaan geheel in de blinde boring wordt gebracht, zal door de elasticiteit van het materiaal van het komvormige element het verankeringsorgaan in meer of mindere mate worden omvat, zodat een vormsluitende verbinding tot stand 30 komt.Thanks to the use of a press fit, the mounting of the spacer in the cup-shaped element is extremely simple and inexpensive. Due to the fact that the anchoring member is fully inserted into the blind bore, the elasticity of the material of the cup-shaped element means that the anchoring member will be included to a greater or lesser extent, so that a positive connection is established.
Dit effect wordt verbeterd door de hardheid van het materiaal van de afstandorganen groter te houden dan die van het materiaal van het komvormige element.This effect is enhanced by keeping the hardness of the spacer material greater than that of the cup element material.
Bovengenoemde en andere kenmerken van de uitvinding zullen nader worden toegelicht in de hieronder 35 staande figuurbeschrijving van een uitvoeringsvoorbeeld. In de tekening toont: figuur 1 een perspectivisch aanzicht van een komvormig element voorzien van afstandorganen volgens de uitvinding; figuur 2 een doorsnede van een botdeel met daarin aangebracht een komvormig element volgens de uitvinding; 40 figuur 3 een doorsnede door een afstandorgaan en het komvormige element op vergrote schaal.Above mentioned and other features of the invention will be further elucidated in the figure description of an exemplary embodiment below. In the drawing: figure 1 shows a perspective view of a cup-shaped element provided with spacers according to the invention; figure 2 shows a cross-section of a bone part with a cup-shaped element according to the invention arranged therein; Figure 3 is a cross-section through a spacer and the cup-shaped element on an enlarged scale.
In de figuren is met het cijfer 1 het komvormige element aangegeven, dat in de getoonde uitvoeringsvorm een bolvormige gestalte heeft, met een naar buiten wijzende flens 2 aan de open buitenrand daarvan. In het komvormige lichaam is een holte 3 uitgespaard, waarin het contra-element van het gewricht kan worden 45 opgenomen. Dit contra-element kan bijvoorbeeld het bolvormig einddeel van het met het dijbeen verbonden heupprothese zijn, maar kan anderzijds een botelement zijn dat verbonden is aan het dijbeen aan de kniegewrichtszijde, terwijl het gewelfde element 1 aan de bovenzijde van het onderbeen is bevestigd.In the figures, numeral 1 designates the cup-shaped element, which in the embodiment shown has a spherical shape, with an outwardly pointing flange 2 on the open outer edge thereof. A cavity 3 is recessed in the cup-shaped body, into which the counter-element of the joint 45 can be received. This counter-element can for instance be the spherical end part of the hip prosthesis connected to the thigh, but on the other hand it can be a bone element that is connected to the thigh on the knee-joint side, while the curved element 1 is attached to the top of the lower leg.
Het komvormige element dient te worden opgenomen in de bestaande holte van het bot B (zie figuur 2), dat al of niet op passende wijze wordt uitgeschraapt voor het verkrijgen van de juiste afmeting. Tussen het 50 komvormige element 1 en het been wordt een cement 4 gevoegd dat bijvoorbeeld bestaat uit acrylmateriaal.The cup-shaped element should be received in the existing cavity of bone B (see Figure 2), which may or may not be appropriately scraped out to obtain the correct size. Between the cup-shaped element 1 and the leg, a cement 4 is added, which for instance consists of acrylic material.
Teneinde de afstand tussen het komvormige element 1 en het bot B over het gehele buitenoppervlak van het komvormige element 1 even dik te houden, is het komvormige element op bekende wijze voorzien van afstandorganen 5. Deze afstandorganen zijn op regelmatige afstand rond het buitenoppervlak van het komvormige element 1 aangebracht hetgeen in figuur 1 schematisch is weergegeven.In order to keep the distance between the cup-shaped element 1 and the bone B equally thick over the entire outer surface of the cup-shaped element 1, the cup-shaped element is provided with spacers 5 in known manner. These spacers are regularly spaced around the outer surface of the cup-shaped element 1 which is shown schematically in figure 1.
55 Volgens de uitvinding worden de afstandorganen 5 in blinde boringen 6 van het komvormige element 1 aangebracht. Daartoe is elk afstandelement in hoofdzaak cilindrisch uitgevoerd, en vertoont daartoe een verankeringsdeel 7 alsmede een daarop aansluitend verjongd deel 8.According to the invention, the spacers 5 are arranged in blind bores 6 of the cup-shaped element 1. For this purpose, each spacer element is of substantially cylindrical design, and for this purpose it has an anchoring part 7 as well as a rejuvenated part 8 adjoining it.
Claims (2)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL9200070A NL193791C (en) | 1992-01-15 | 1992-01-15 | Joint prosthesis. |
DE9300471U DE9300471U1 (en) | 1992-01-15 | 1993-01-15 | Joint prosthesis |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL9200070A NL193791C (en) | 1992-01-15 | 1992-01-15 | Joint prosthesis. |
NL9200070 | 1992-01-15 |
Publications (3)
Publication Number | Publication Date |
---|---|
NL9200070A NL9200070A (en) | 1993-08-02 |
NL193791B NL193791B (en) | 2000-07-03 |
NL193791C true NL193791C (en) | 2000-11-06 |
Family
ID=19860299
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL9200070A NL193791C (en) | 1992-01-15 | 1992-01-15 | Joint prosthesis. |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE9300471U1 (en) |
NL (1) | NL193791C (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DK0737262T4 (en) * | 1993-12-29 | 2003-11-17 | Cp Test As | Furry rich |
FR2733410B1 (en) * | 1995-04-27 | 1997-11-07 | Benoist Girard & Cie | ACETABULAR CUP FOR TOTAL HIP PROSTHESIS |
GB0718821D0 (en) | 2007-09-26 | 2007-11-07 | Benoist Girard Sas | Cement spacer for use in prosthetic cup and method of use therein |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2080118A (en) * | 1980-07-05 | 1982-02-03 | Hardinge Kevin | An acetabular cup |
US4563778A (en) * | 1983-02-23 | 1986-01-14 | Minnesota Mining And Manufacturing Company | Prosthetic acetabular cup |
US4566138A (en) * | 1983-03-08 | 1986-01-28 | Zimmer, Inc. | Prosthetic device with spacers |
CH673766A5 (en) * | 1988-03-01 | 1990-04-12 | Sulzer Ag | |
FR2651996B3 (en) * | 1989-09-21 | 1991-08-09 | Augoyard Marc | CEMENTED PROSTHESIS CUP. |
-
1992
- 1992-01-15 NL NL9200070A patent/NL193791C/en not_active IP Right Cessation
-
1993
- 1993-01-15 DE DE9300471U patent/DE9300471U1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE9300471U1 (en) | 1993-03-25 |
NL9200070A (en) | 1993-08-02 |
NL193791B (en) | 2000-07-03 |
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