NL1020390C1 - Hip socket construction intended for use in the treatment of hip abnormalities. - Google Patents
Hip socket construction intended for use in the treatment of hip abnormalities. Download PDFInfo
- Publication number
- NL1020390C1 NL1020390C1 NL1020390A NL1020390A NL1020390C1 NL 1020390 C1 NL1020390 C1 NL 1020390C1 NL 1020390 A NL1020390 A NL 1020390A NL 1020390 A NL1020390 A NL 1020390A NL 1020390 C1 NL1020390 C1 NL 1020390C1
- Authority
- NL
- Netherlands
- Prior art keywords
- hip
- closing element
- hole
- cup
- hip cup
- Prior art date
Links
- 238000010276 construction Methods 0.000 title claims description 21
- 230000005856 abnormality Effects 0.000 title claims description 9
- 210000001624 hip Anatomy 0.000 claims description 79
- 210000004197 pelvis Anatomy 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 2
- 210000000988 bone and bone Anatomy 0.000 description 7
- 239000007943 implant Substances 0.000 description 5
- 210000004394 hip joint Anatomy 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 101100327917 Caenorhabditis elegans chup-1 gene Proteins 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
Classifications
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- 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
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2220/0033—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit
-
- 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
- A61F2250/0036—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 thickness
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
Korte aanduiding: Heupkomconstructie bestemd om te worden gebruikt in de behandeling van heupafwijkingen,Short indication: Hip-cup construction intended for use in the treatment of hip abnormalities,
De onderhavige uitvinding heeft betrekking op een heupkomconstructie die bestemd is om te worden gebruikt bij de behandeling van heupafwijkingen. Meer in het bijzonder heeft de uitvinding betrekking op een heupkomconstructie met bredere 5 toepasbaarheid, die geschikt is ofwel als implantaat ofwel als ve rvang i ngsheup kom.The present invention relates to a hip cup construction intended for use in the treatment of hip abnormalities. More in particular, the invention relates to a hip cup construction with wider applicability, which is suitable either as an implant or as a replacement hip cup.
Zoals bekend is bij de verschillende heupafwijkingen is men vaak gedwongen zijn toevlucht te nemen tot gewrichtsprotheses. Deze bestaan in het algemeen uit een pen die in het dijbeenkanaal is 10 geplaatst, een heupkom die in de heupgewrichtsholte van het bekken is geplaatst en een kop die op de top van de pen is geplaatst en die scharniert op het binnenoppervlak van de kunstheupkom, waardoor het functionerend herstel van het heupgewricht mogelijk is.As is known with the various hip disorders, people are often forced to resort to joint prostheses. These generally consist of a pin placed in the femur canal, a hip cup placed in the hip joint cavity of the pelvis and a head placed on top of the pin and hinged on the inner surface of the artificial hip cup, thereby the functional recovery of the hip joint is possible.
De heupkommen kunnen verschillende vormen hebben, bijvoorbeeld 15 halfbolvormig, afgeknotte-kegelvormig, die van een deel van een bol, ovaal of anders, en kunnen worden onderverdeeld in twee types: gecementeerde en niet-gecementeerde.The hip cups can have different shapes, for example hemispherical, frusto-conical, those of a part of a sphere, oval or otherwise, and can be subdivided into two types: cemented and non-cemented.
De gecementeerde heupkommen bestaan gewoonlijk uit polyetheen, met een buitenoppervlak dat groeven bevat voor de verankering van het 20 cement.The cemented hip cups usually consist of polyethylene, with an outer surface containing grooves for anchoring the cement.
De heupkommen van het tweede type zijn in het algemeen vervaardigd uit twee elementen: een buitenschaal uit metaal die in contact komt met het bot, en een binnenelement of inzetstuk, dat kan bestaan uit polyetheen en dat zich aan één zijde stabiel verbindt met 25 de metalen schaal en waarvan de andere zijde is voorzien van een halfbolvormige holte aan de binnenzijde waarvan de bovengenoemde kunstkop komt te scharnieren, waardoor het functionele herstel van het heupgewricht mogelijk is.The hip cups of the second type are generally made of two elements: an outer shell of metal that comes into contact with the bone, and an inner element or insert, which may consist of polyethylene and which stably connects to the metal on one side shell and whose other side is provided with a hemispherical cavity on the inside of which the aforementioned artificial head comes to pivot, whereby the functional recovery of the hip joint is possible.
De niet-gecementeerde heupkommen zijn aan het buitenoppervlak 30 dat in contact is met het bot, op geschikte wijze voorzien van meerdere gaten die schroeven voor de bevestiging van de heupkom zelf aan het bot kunnen opnemen.The non-cemented hip cups are suitably provided on the outer surface 30 in contact with the bone with a plurality of holes which can accommodate screws for attaching the hip cup itself to the bone.
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Het gebruik van bevestigingsschroeven is soms noodzakelijk voor het goed functioneren van het implantaat; de aanwezigheid van schroeven verkleint echter de contactoppervlakken tussen de heupkom en het bot, en, in het bijzonder wanneer men gebruik maakt van een 5 inzetstuk uit polyetheen, maken tijdens de levensduur van het implantaat, de schroeven het vanaf de binnenzijde van de heupkom naar het bot naar buiten komen van schadelijke "afvalstoffen" mogelijk.The use of fastening screws is sometimes necessary for the proper functioning of the implant; however, the presence of screws reduces the contact surfaces between the hip cup and the bone, and, especially when using an insert made of polyethylene, during the lifetime of the implant, the screws make it from the inside of the hip cup to the bone from harmful "waste" possible.
Dientengevolge is de chirurg tegenwoordig gedwongen te kiezen tussen een gecementeerde heupkom met gaten, die hem de zekere 10 bevestiging aan het bot garandeert, maar met het risico van het naar buiten komen van afvalstoffen, en zonder gaten, die het bot beschermt tegen het risico van afvalstoffen, maar soms een risico van onjuiste bevestiging met zich meebrengt.As a result, the surgeon is nowadays forced to choose between a cemented hip cup with holes, which guarantees him the secure attachment to the bone, but with the risk of waste coming out, and without holes, which protects the bone against the risk of waste, but sometimes entails a risk of incorrect confirmation.
Dientengevolge moet de chirurg tegenwoordig de beschikking 15 hebben over twee types heupkommen, met gaten en zonder gaten, en moet hij al naar gelang het geval de meest geschikte heupkom kiezen voor het aan te brengen implantaat.As a result, the surgeon must nowadays have two types of hip cups, with holes and without holes, and must choose the most suitable hip cup for the implant to be applied, depending on the case.
Bovendien, in het geval waarin daarentegen de chirurg een heupkom aanbrengt die reeds voorzien is van gaten voor de bevestiging 20 ervan door middel van schroeven, en niettemin besluit deze te gebruiken bijvoorbeeld te cementeren, zal de sterkte van de heupkom in dit geval kleiner blijken te zijn dan die van een niet van gaten voorziene heupkom en bovendien gaat het cement door de gaten en dientengevolge moeten deze op een of andere wijze worden afgesloten. 25 Het hoofdoogmerk van de onderhavige uitvinding is een heupkomconstructie te verschaffen voor het gebruik bij de behandeling van heupafwijkingen die een bredere toepasbaarheid heeft, en daarbij geschikt is ofwel voor het gebruik als een heupkom zonder schroeven, ofwel voor het gebruik als een met behulp van schroeven vast te 30 zetten heupkom.Moreover, in the case where the surgeon, on the other hand, installs a hip cup that is already provided with holes for fixing it by means of screws, and nevertheless decides to use it for cementing, the strength of the hip cup in this case will prove to be lower. are then that of a hip socket which is not provided with holes and, moreover, the cement passes through the holes and, as a result, these must be closed in one way or another. The main object of the present invention is to provide a hip cup construction for use in the treatment of hip defects that has a wider applicability, and is thereby suitable either for use as a hip cup without screws, or for use as a screw-threaded hip bowl to be fixed.
Binnen het kader van dit oogmerk is een doel van de onderhavige uitvinding het verschaffen van een heupkomconstructie voor het gebruik bij de behandeling van heupafwijkingen, die het mogelijk maakt dat de chirurg tijdens de chirurgische ingreep niet de 35 heupkom hoeft te kiezen.Within the scope of this object, an object of the present invention is to provide a hip cup construction for use in the treatment of hip abnormalities, which makes it possible for the surgeon not to choose the hip cup during the surgical procedure.
Een ander doel van de onderhavige uitvinding is het verschaffen van een heupkomconstructie voor het gebruik bij de behandeling van heupafwijkingen, die het mogelijk maakt dat de 1020390 - 3 - chirurg alleen de gaten hoeft te openen waarin effectief bevestigingsschroeven moeten worden ondergebracht.Another object of the present invention is to provide a hip cup structure for use in the treatment of hip abnormalities, which allows the surgeon to open only the holes in which effective fastening screws are to be accommodated.
Een ander doel van de onderhavige uitvinding is het verschaffen van een heupkomconstructie voor het gebruik bij de 5 behandeling van heupafwijkingen, die het mogelijk maakt dat de chirurg vooraf geen keuze hoeft te maken voor wat betreft het in het implantaat te gebruiken heupkom, met schroeven of zonder schroeven.Another object of the present invention is to provide a hip cup construction for use in the treatment of hip abnormalities, which makes it possible for the surgeon not to make a prior choice as to the hip cup to be used in the implant, with screws or without screws.
Een laatste doel van de onderhavige uitvinding is het verschaffen van een heupkomconstructie voor het gebruik bij de 10 behandeling van heupafwijkingen, die grotere betrouwbaarheid heeft, betrekkelijk eenvoudig is te vervaardigen en voor wat betreft kosten concurrerend is.A final object of the present invention is to provide a hip cup construction for use in the treatment of hip abnormalities, which has greater reliability, is relatively easy to manufacture and is cost-competitive.
Dit oogmerk, alsmede deze doelen en andere doelen die beter blijken uit het hiernavolgende, worden bereikt door een 15 heupkomconstructie met vergrote toepasbaarheid, in het bijzonder voor het gebruik bij de behandeling van heupafwijkingen, omvattende een hol binnenlichaam dat aan de buitenzijde is voorzien van ten minste één gat voor de doorgang van een bijbehorende schroef voor de bevestiging van de heupkom aan de binnenzijde van de zitting van de 20 heupkom in het bekken van de patiënt, met het kenmerk, dat de heupkomconstructie een afsluitelement omvat voor het afsluiten van het ten minste ene gat, waarbij het afsluitelement tijdelijk vast verbonden is met de binnenwanden van het gat en losneembaar met de genoemde wanden is verbonden.This object, as well as these objectives and other objectives which are better apparent from the following, are achieved by a hip cup construction with increased applicability, in particular for use in the treatment of hip abnormalities, comprising a hollow inner body which is provided on the outside with at least one hole for the passage of an associated screw for fixing the hip cup to the inside of the seat of the hip cup in the pelvis of the patient, characterized in that the hip cup construction comprises a closing element for closing off the at least one hole, wherein the closing element is temporarily fixedly connected to the inner walls of the hole and is releasably connected to the said walls.
25 Andere kenmerken en voordelen van de uitvinding blijken in hoofdzaak uit de beschrijving van de voorkeur verdienende, maar niet uitsluitende uitvoeringsvormen van de heupkomconstructie volgens de onderhavige uitvinding, die bij wijze van voorbeeld en niet beperkend zijn weergegeven in de bijgaande tekening, waarin: 30 fig. 1 schematisch een aanzicht in doorsnede weergeeft van de heupkomconstructie volgens de onderhavige uitvinding; fig. 2 een bovenaanzicht weergeeft van de heupkomconstructie volgens de onderhavige uitvinding, waarbij de afsluitelementen zijn weggenomen; 35 fig. 3 een deelaanzicht in doorsnede met uiteengenomen delen weergeeft van een eerste uitvoeringsvorm van de heupkomconstructie volgens de onderhavige uitvinding; 1020390 - 4 - fig. 3a een deelaanzicht in doorsnede weergeeft van de heupkomconstructie volgens de onderhavige uitvinding, in de eerste uitvoeringsvorm; fig. 4 een deelaanzicht in doorsnede met uiteengenomen delen 5 weergeeft van een tweede uitvoeringsvorm van de heupconstructie volgens de onderhavige uitvinding; fig. 4a een deelaanzicht in doorsnede weergeeft van de heupkomconstructie volgens de onderhavige uitvinding, in de tweede uitvoeringsvorm.Other features and advantages of the invention are apparent essentially from the description of the preferred, but not exclusive, embodiments of the hip cup construction according to the present invention, which are shown by way of example and not restrictively in the accompanying drawing, in which: FIG. 1 schematically represents a sectional view of the hip cup construction according to the present invention; Fig. 2 shows a top view of the hip cup construction according to the present invention, with the closing elements removed; Fig. 3 shows a sectional view with exploded parts of a first embodiment of the hip cup construction according to the present invention; Fig. 3a shows a partial cross-sectional view of the hip cup construction according to the present invention, in the first embodiment; Fig. 4 shows a partial sectional view with exploded parts 5 of a second embodiment of the hip construction according to the present invention; Fig. 4a shows a partial cross-sectional view of the hip cup construction according to the present invention, in the second embodiment.
10 Zoals te zien is in de bovengenoemde figuren, omvat de heupkomconstructie volgens de onderhavige uitvinding, die in het algemeen is aangeduid met het verwijzingscijfer 1, een lichaam 2, dat bijvoorbeeld halfbolvormig is ofwel een of andere vorm heeft en, dat voorzien is van ten minste één en bij voorkeur meerdere gaten 3 die 15 geschikt zijn om de doorgang van schroeven mogelijk te maken voor de bevestiging van de heupkom in de bijbehorende heupgewrichtsholte door de chirurg.As can be seen in the above-mentioned figures, the hip cup construction according to the present invention, which is generally indicated by the reference numeral 1, comprises a body 2 which is, for example, hemispherical or has some form and which is provided with at least at least one and preferably several holes 3 which are suitable for allowing the passage of screws for the attachment of the hip cup in the associated hip joint cavity by the surgeon.
Elk gat heeft een zodanige vorm dat het een eerste bolvormig gedeelte 4 omvat dat aansluit op een gedeelte 5, dat op geschikte 20 wijze, bijvoorbeeld conisch naar het buitenoppervlak van het lichaam 2 van de heupkom wijder wordend, kan zijn, ofwel cilindrisch, zoals in detail is weergegeven in fig. 3.Each hole has a shape such that it comprises a first spherical portion 4 which connects to a portion 5, which can suitably, for example be conically widening towards the outer surface of the body 2 of the hip cup, or be cylindrical, as in detail is shown in fig. 3.
Een afsluitelement 6 is aangebracht voor het afsluiten van elk van de gaten 3, waarin bijbehorende schroeven kunnen worden gestoken 25 voor de bevestiging van de heupkom.A closing element 6 is provided for closing off each of the holes 3, into which associated screws can be inserted for fixing the hip cup.
Het afsluitelement 6 is op geschikte wijze gevormd met behulp van een van binnen hol cilindrisch lichaam, met een blinde holte die in fig. 3 is aangeduid met het verwijzingscijfer 7, waarbij dit cilindrische lichaam aan één uiteinde eindigt in de vorm van een 30 breder wordend gedeelte 8 dat verbonden is met het overgangsgebied tussen het bolvormige gedeelte 4 en het conische gedeelte 5 van het gat 3. Echter, het afsluitelement 6 dient als stop voor het gat 3 en is in hoofdzaak met de wanden van het gat verbonden door middel van een dun gedeelte van het breder wordende gedeelte 8.The closing element 6 is suitably formed with the aid of a cylindrical body which is hollow from the inside, with a blind cavity which is designated by reference numeral 7 in Fig. 3, said cylindrical body terminating at one end in the form of a widening part 8 which is connected to the transition area between the spherical part 4 and the conical part 5 of the hole 3. However, the closing element 6 serves as a stop for the hole 3 and is substantially connected to the walls of the hole by means of a thin part of the widening part 8.
35 Bij voorkeur kan het gedeelte van het gat 3 dat in het naast het afsluitelement 6 liggende gebied vrij blijft, vanaf het gedeelte van de binnenholte van de heupkom worden opgevuld door een ander afsluitelement 9 dat met een centraal gedeelte 10 in de holte 7 van 1020390 - 5 - het afsluitelement 6 komt te liggen en met zijvleugels 11 de zijgebieden naast de centrale holte 7 van het afsluitelement 8 afsluit.Preferably, the portion of the hole 3 that remains free in the area lying next to the closure element 6 can be filled from the portion of the inner cavity of the hip cup by another closure element 9 which has a central portion 10 in the cavity 7 of 1020390. The closing element 6 comes to lie and closes with side wings 11 the side regions next to the central cavity 7 of the closing element 8.
In de tweede uitvoeringsvorm, die is weergegeven in fig. 4, is 5 het tweede afsluitelement, in plaats van vleugels 11, voorzien van gedeelten 12 die een vorm hebben die complementair is aan die van de naast het gat 7 van het afsluitelement 6 gelegen gebieden.In the second embodiment, which is shown in Fig. 4, the second closing element, instead of wings 11, is provided with parts 12 which have a shape that is complementary to that of the areas adjacent to the hole 7 of the closing element 6 .
In het ene of het andere geval is het tweede afsluitelement niet noodzakelijk voor het functioneren van de heupkomconstructie 10 volgens de uitvinding, dankzij het feit dat de hoofdfunctie wordt gewaarborgd door het eerste afsluitelement 6 dat het gat afsluit waarin de bevestigingsschroef moet worden ondergebracht.In one or the other case the second closing element is not necessary for the functioning of the hip cup construction 10 according to the invention, thanks to the fact that the main function is guaranteed by the first closing element 6 that closes the hole in which the fixing screw must be accommodated.
Het gebruik van de heupkom volgens de onderhavige uitvinding is als volgt.The use of the hip cup according to the present invention is as follows.
15 Wanneer de chirurg eenmaal heeft besloten de heupkom volgens de uitvinding te gebruiken als heupkom waarbij de bevestiging door middel van schroeven niet is vereist, heeft de druk die gewoonlijk op het buitenoppervlak van het lichaam 2 van de heupkom wordt uitgeoefend geen enkele invloed op het afsluitelement 6 dat dus op 20 zijn plaats blijft, waarbij het het gat 3 afsluit, en dit heeft het voordeel dat een heupkom wordt aangeboden met een grotere sterkte dan een heupkom met een van gaten voorzien oppervlak.Once the surgeon has decided to use the hip cup according to the invention as a hip cup where screw fixing is not required, the pressure normally applied to the outer surface of the body 2 of the hip cup does not have any influence on the closing element 6, which therefore remains in place, closing the hole 3, and this has the advantage that a hip cup with a greater strength is offered than a hip cup with a surface provided with holes.
In het geval dat de chirurg daarentegen besluit de heupkom met behulp van de gaten 3 in zijn zitting vast te schroeven, is het 25 voldoende een duwactie op het eerste afsluitelement 6 uit te oefenen teneinde het dunne verbindingsgedeelte van de laatstgenoemde met de zijwanden van het gat 3 te verbreken, waardoor het afsluitelement 6 wordt uitgenomen. Dit afsluitelement kan ook worden weggenomen bij een reeds in het bekken geïmplanteerde heupkom.If, on the other hand, the surgeon decides to screw the hip cup into his seat with the aid of the holes 3, it is sufficient to exert a pushing action on the first closing element 6 in order to connect the thin connecting part of the latter with the side walls of the hole. 3, whereby the closing element 6 is removed. This closing element can also be removed with a hip cup already implanted in the pelvis.
30 In het geval waarin het tweede afsluitelement eveneens aanwezig is, moet dit vooraf worden uitgenomen.In the case where the second closing element is also present, this must be removed beforehand.
Het tweede afsluitelement kan bijvoorbeeld in de holte of het gat 7 van het eerste afsluitelement 6 zijn geschroefd en kan derhalve voor het uitnemen ervan worden losgeschroefd.The second closing element can for instance be screwed into the cavity or the hole 7 of the first closing element 6 and can therefore be unscrewed for removal thereof.
35 Derhalve moeten in hoofdzaak de dunne gedeelten van het eerste afsluitelement 6, aangeduid met het verwijzingscijfer 15, worden verbroken voor het uitnemen van het eerste afsluitelement 6 en derhalve het vrijmaken van het gat 3.Therefore, substantially the thin portions of the first closing element 6, designated by the reference numeral 15, have to be broken to take out the first closing element 6 and thus to release the hole 3.
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Derhalve kan de heupkom volgens de uitvinding om het even worden gebruikt ofwel als heupkom die bestemd is om te worden gebruikt zonder schroeven, ofwel als heupkom die bestemd is om in zijn zitting te worden geschroefd, zonder dat de chirurg vooraf het 5 type heupkom hoeft te kiezen.Therefore, the hip cup according to the invention can be used in any way either as a hip cup intended to be used without screws, or as a hip cup intended to be screwed into its seat, without the surgeon having to have the hip cup type in advance. select.
Het afsluitelement 6 verandert de heupkom derhalve van een heupkom in wezen zonder gaten in een heupkom met gaten, waarin bevestigingsschroeven kunnen worden gestoken. Dit vertaalt zich in een bredere toepasbaarheid van de heupkom zelf, in zoverre dat de 10 chirurg één enkel type heupkom kan gebruiken en vervolgens op het moment kan besluiten welk type bevestiging hij wenst toe te passen, waarbij hij het van het afsluitelement 6 uitneemt, ofwel de dunne gedeelten 15 die het afsluitelement 6 verbinden met de binnenwanden van het gat 3 van het lichaam 2 van de heupkom 1 afscheurt, in het 15 geval waarin hij bevestigingsschroeven wenst te gebruiken.The closing element 6 therefore changes the hip cup from a hip cup essentially without holes to a hip cup with holes into which fastening screws can be inserted. This translates into a broader applicability of the hip cup itself, in that the surgeon can use a single type of hip cup and then decide at the time which type of attachment he wishes to apply, taking it out of the closure element 6, or tear off the thin portions 15 connecting the closure element 6 to the inner walls of the hole 3 of the body 2 from the hip cup 1, in the case where he wishes to use fixing screws.
Men constateert in de praktijk dat de heupkom volgens de onderhavige uitvinding het oogmerk alsmede de hierboven aangegeven doelen geheel bereikt, voor zover het om het even kan worden gebruikt, ofwel met schroeven ofwel zonder bevestigingsschroeven.It is found in practice that the hip cup according to the present invention fully attains the object as well as the above stated objectives, insofar as it can be used in any way, either with screws or without fastening screws.
20 De aldus ontworpen heupkom is geschikt om talrijke wijzigingen en variaties te ondergaan, waarbij geheel binnen het kader van het inventieve concept wordt gebleven; bovendien kunnen alle details worden vervangen door andere technisch equivalente elementen.The hip cup thus designed is suitable for undergoing numerous changes and variations, while remaining entirely within the scope of the inventive concept; in addition, all details can be replaced by other technically equivalent elements.
In de praktijk zouden de materialen alsmede de afmetingen en 25 de bijbehorende vormen elke kunnen zijn als functie van de eisen en de stand van de techniek.In practice the materials as well as the dimensions and the associated shapes could be any as a function of the requirements and the state of the art.
10203901020390
Claims (6)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL1020390A NL1020390C1 (en) | 2002-04-15 | 2002-04-15 | Hip socket construction intended for use in the treatment of hip abnormalities. |
| FR0212784A FR2838329A1 (en) | 2002-04-15 | 2002-10-15 | Cotyle structure for treating hip complaints has one or more fixing holes with temporary plugs that can be broken off prior to use |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL1020390A NL1020390C1 (en) | 2002-04-15 | 2002-04-15 | Hip socket construction intended for use in the treatment of hip abnormalities. |
| NL1020390 | 2002-04-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL1020390C1 true NL1020390C1 (en) | 2003-10-17 |
Family
ID=28673129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL1020390A NL1020390C1 (en) | 2002-04-15 | 2002-04-15 | Hip socket construction intended for use in the treatment of hip abnormalities. |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR2838329A1 (en) |
| NL (1) | NL1020390C1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005025686B4 (en) * | 2005-06-03 | 2007-10-11 | Mathys Ag Bettlach | Hip endoprosthesis |
| GB2463066A (en) * | 2008-09-01 | 2010-03-03 | Biomet Uk Ltd | A prosthetic bearing component |
| EP2384723B1 (en) | 2010-05-07 | 2012-12-12 | Jossi Holding AG | Method for producing an implant and implant with at least one predetermined breaking line |
| EP2520254A1 (en) * | 2011-05-04 | 2012-11-07 | Jossi Holding AG | Instrument for detecting an engagement means on an implant |
| US8535384B2 (en) | 2011-08-10 | 2013-09-17 | Biomet Manufacturing, Llc | Acetabular screw hole covers with porous coating |
| US10588751B2 (en) * | 2016-12-12 | 2020-03-17 | Zimmer, Inc. | Implants with frangible fastener port plugs and methods of manufacturing implants with frangible fastener port plugs |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5370702A (en) * | 1993-06-17 | 1994-12-06 | Stelkast Incorporated | Acetabular cup having optionally removable portions |
| DE69406786T2 (en) * | 1993-12-10 | 1998-03-19 | Sulzer Orthopedics Inc | HIP JOINT PAN WITH BREAKING BAGHOLES PRESENT FOR THE SCREW-IN |
| US5609648A (en) * | 1994-02-07 | 1997-03-11 | Sulzer Medizinaltechnik Ag | Acetabular cup assembly |
| DE59408730D1 (en) * | 1994-02-07 | 1999-10-14 | Sulzer Orthopaedie Ag | Outer shell for an at least two-shell joint socket of a hip joint prosthesis and a hip joint prosthesis with such an outer shell |
| US5888204A (en) * | 1996-04-15 | 1999-03-30 | Fastenetix, Llc | Acetabular cup having capped polyaxial locking screws |
| US5888205A (en) * | 1996-10-01 | 1999-03-30 | Kinamed, Inc. | Device for sealing acetabular cup holes |
| US5782929A (en) * | 1996-12-31 | 1998-07-21 | Sulzer Orthopedics Inc. | Acetabular shell having sintered screw hole plugs |
| US5925077A (en) * | 1997-04-02 | 1999-07-20 | Biomet, Inc. | Apparatus and method for plugging holes in an acetabular shell component |
-
2002
- 2002-04-15 NL NL1020390A patent/NL1020390C1/en not_active IP Right Cessation
- 2002-10-15 FR FR0212784A patent/FR2838329A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR2838329A1 (en) | 2003-10-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| VD2 | Lapsed due to expiration of the term of protection |
Effective date: 20080415 |