HRP960604A2 - The upper part of the femoral component of a hip joint endoprosthesis - Google Patents
The upper part of the femoral component of a hip joint endoprosthesis Download PDFInfo
- Publication number
- HRP960604A2 HRP960604A2 HR19547638.7A HRP960604A HRP960604A2 HR P960604 A2 HRP960604 A2 HR P960604A2 HR P960604 A HRP960604 A HR P960604A HR P960604 A2 HRP960604 A2 HR P960604A2
- Authority
- HR
- Croatia
- Prior art keywords
- hip joint
- femoral endoprosthesis
- previous
- proximal end
- femoral
- Prior art date
Links
- 210000004394 hip joint Anatomy 0.000 title claims abstract description 21
- 210000000689 upper leg Anatomy 0.000 abstract description 22
- 210000000988 bone and bone Anatomy 0.000 abstract description 16
- 230000014759 maintenance of location Effects 0.000 abstract 1
- 239000011796 hollow space material Substances 0.000 description 9
- 238000002513 implantation Methods 0.000 description 5
- 239000002639 bone cement Substances 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000002271 resection Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000011882 arthroplasty Methods 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000001624 hip Anatomy 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000002023 wood Substances 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
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3662—Femoral shafts
-
- 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
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3662—Femoral shafts
- A61F2/367—Proximal or metaphyseal parts of shafts
-
- 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
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3662—Femoral shafts
- A61F2/3676—Distal or diaphyseal parts of shafts
-
- 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
- A61F2002/3011—Cross-sections or two-dimensional shapes
- A61F2002/30112—Rounded shapes, e.g. with rounded corners
- A61F2002/30113—Rounded shapes, e.g. with rounded corners circular
-
- 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
- A61F2002/3011—Cross-sections or two-dimensional shapes
- A61F2002/30112—Rounded shapes, e.g. with rounded corners
- A61F2002/30125—Rounded shapes, e.g. with rounded corners elliptical or oval
-
- 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
- A61F2002/3011—Cross-sections or two-dimensional shapes
- A61F2002/30182—Other shapes
- A61F2002/30187—D-shaped or half-disc-shaped
-
- 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
- A61F2002/30316—The 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
- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2002/30331—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
- A61F2002/30332—Conically- or frustoconically-shaped protrusion and recess
-
- 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
- A61F2002/30316—The 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
- A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
- A61F2002/30448—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements using adhesives
-
- 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
- A61F2002/30884—Fins or wings, e.g. longitudinal wings for preventing rotation within the bone 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
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3609—Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts
- A61F2002/365—Connections of heads to necks
-
- 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
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3662—Femoral shafts
- A61F2002/3678—Geometrical features
- A61F2002/3686—Geometrical features bent
-
- 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
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3662—Femoral shafts
- A61F2002/3678—Geometrical features
- A61F2002/369—Stepped shaft, i.e. having discrete diameter changes
-
- 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
- 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
- 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
- A61F2220/005—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements using adhesives
-
- 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
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0004—Rounded shapes, e.g. with rounded corners
- A61F2230/0006—Rounded shapes, e.g. with rounded corners circular
-
- 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
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0004—Rounded shapes, e.g. with rounded corners
- A61F2230/0008—Rounded shapes, e.g. with rounded corners elliptical or oval
-
- 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
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0028—Shapes in the form of latin or greek characters
- A61F2230/0034—D-shaped
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
Područje tehnike
Izum je iz područja medicine, točnije područja traumatologije i odnosi se na gornji dio butne endoproteze zgloba kuka s tijelom čiji se poprečni presjek kontinuirano povećava od njegova distalnog kraja prema proksimalnom kraju, a u proksimalnom području tijela se ovalno širi u medijalno/lateralnom smjeru.
Tehnički problem
Tehnički problem kojega rješava izum je da gornji dio butne endoproteze zgloba kuka prije navedene vrste dalje oblikuje tako da je moguće bez oslanjajuće ogrlice uvođenje vertikalnog opterećenja s dovoljno velikim oslanjajućim površinama koje su postignute oblikom.
Stanje tehnike
Ovakav gornji dio proteze za butnu kost je, na primjer, poznat u obliku realizacije koja se može zacementirati iz DE 38 29 361 i koja ima tijelo čiji je poprečni presjek u produženom smjeru prilagođen šupljem prostoru kosti prirodnog femura i ima oslanjajuću ogrlicu u obliku prirubnice na proksimalnom kraju tijela, a koja se naslanja na resekcijski rub prirodnog femura kada je gornji dio proteze za butnu kost ucementiran u femuru.
Budući se kod cementiranja koštani element neujednačeno sakuplja ispod oslanjajuće ogrlice, izravni kontakt između oslanjajuće ogrlice i prirodnog femura se ne može pouzdano ukloniti, osim toga u ovom slučaju postoji opasnost da se tanki segmenti koštanog cementa cijepaju pod opterećenjem i zbog različite prirode materijala se ne mogu pouzdano isključiti i neželjeni relativni pokreti između metalne oslanjajuće ogrlice i prirodnog femura, zbog čega se i koštano tkivo mijenja na nepoželjni način. Osim toga, u pravilu, oslanjajuća ogrlica naliježe samo točkastim dodirom - u danom slučaju preko koštanog cementa - na prirodni femur, pošto konačni položaj gornjeg dijela proteze butne kosti, a time i oslanjajuće ogrlice, zavise od prirode i oblika šupljeg prostora kosti i pri izvođenju resekcijskog reza se ne mogu precizno predvidjeti. Zbog toga se ne mogu otkloniti nedostaci pri uvođenju vertikalnog opterećenja preko oslanjajuće ogrlice na prirodni femur.
Opis izuma
Zbog toga je zadaća izuma da gornji dio butne endoproteze zgloba kuka gore navedene vrste dalje oblikuje, tako da je bez oslanjajuće ogrlice moguće uvođenje vertikalnog opterećenja s dovoljno velikim oslanjajućim površinama koje su postignute oblikom.
Ova zadaća će kod gornjeg dijela proteze butne kosti prije spomenute vrste prema izumu biti riješena na taj način, što prema proksimalnom kraju tijela povećanje poprečnog presjeka u ventralno/dorzalnom smjeru slijedi u više stepenika, čija medijalno/lateralna širina od distalnog stepenastog ruba raste prema proksimalnom kraju tijela.
Prednosti izuma su očito u tome, što u proksimalnom segmentu tijela povećanje poprečnog presjeka - radi prilagođenja na šuplji prostor kosti prirodnog femura - slijedi u više stepenika koji u unaprijed određenoj udaljenosti od distalnog kraja tijela naliježu s malom medijalno/lateralnom širinom i čija se medijalna/lateralna širina prema proksimalnom kraju tijela stalno povećava prema poprečnom presjeku tijela. Pošto se pri implanitiranju gornjeg dijela proteze butne kosti, sukladno izumu, šuplji prostor kostiju, pomoću pomagala, u dorzalnom i ventralnom dijelu oblikuje sa stepenastim udublje-njima, stepenasti rubovi proteze s odgovarajućim stepenastim rubovima šupljeg prostora kosti stvaraju uporište koje je omogućeno oblikom i koje osigurava kako primarnu stabilnost tako i trajnu stabilnost i, osim toga, omogućuje primjenu vertikalnog opterećenja na kosti na relativno velikoj površini. Pogodna stepenasta udubljenja u unutrašnjoj stijenci femura postižu se prifliranim pomagalima koji su prilagođeni gornjem dijelu proteze butne kosti i čiji se prostor tada, pri implantiranju, ispunjava homogenom cementnom kapsulom te gornjim dijelom proteze butne kosti. Alternativno, moguće je i implantiranje proteze sukladno izumu bez cementa. Željeno oblikovanje stepenastih udubljenja prema stepenastim izbočinama umjetnog gornjeg dijela butne kosti je moguće na jednostavan način pomoću odgovarajućeg alata, turpije za drvo ili sličnog, pošto se pokretanje alata vrši samo u aksijalnom smjeru i na kraju se proteza odgovarajućim kretanjem postavlja u odgovarajuće pripremljeni šuplji prostor kosti. Otklonjeni su nedefinirani pokreti protetičkog gornjeg dijela butne kosti pri postavljanju.
Osobita je prednost to što je na ventralnoj strani i dorzalnoj strani proksimalnog segmenta tijela postavljen po jedan stepenik, čime se oblikom omogućuje simetrično oslanjanje na obje strane gornjeg dijela proteze butne kosti. Stepenik naliježe malom širinom na unaprijed određenoj udaljenosti od distalnog kraja i proširuje se naviše prema proksimalnom kraju tijela.
Prema jednoj pogodnoj realizaciji izuma, prema ventralnoj strani i dorzalnoj strani tijela raspodijeljeno je uvijek više stepenika, pomaknutih prema proksimalnom kraju stepenasto jedan na drugi. Rub sljedećeg višeg stepenika pri tom pogodno prolazi uvijek na udaljenosti od ruba stepenika ispod njega, tako da se i u lateralnom, odnosno medijalnom smjeru dobiva stepenasta gradacija, pri čemu poprečni presjek tijela prema proksimalnom kraju raste na sve strane i na taj način je približno oblika šupljeg protora kosti. Na ovaj način se postiže pouzdano čvrsto nasjedanje proteze u šupljem prostoru kosti.
Prema jednom pogodnom obliku izuma visina rubova pojedinačnih stepenika je uvijek konstantna, a stepenaste površine su ravne i međusobno paralelne. Ovaj oblik realizacije postiže veliku čvrstoću, pogodna svojstva prihvaćanja opterećenja s pogodnim učvršćenjem.
Alternativno se visina ruba stepenika prema proksimalnom smjeru stalno povećava, čime se postiže dodatna kompresija kosti pri postavljanju proteze.
Pogodno je u proksimalnom području tijela ventralno i dorzalno oblikovana po jedna ravna osnovna površina na kojoj su stepenici pomaknuti u uzdužnom smjeru - kako na dorzalnoj tako i na ventralnoj strani poprečnog presjeka. Ventralna i dorzalna osnovna površina mogu biti međusobno paralelne.
Na proksimalnom kraju tijela je postavljen nasadni konus za učvršćivanje glave proteze pomoću uličnog spoja. Alternativno se može na proksimalnom kraju tijela predvidjeti i vrat proteze s oblikovanom glavom proteze. Osim toga, na proksimalnom dijelu tijela može se lateralno još oblikovati jedan naslon koji povećava primarnu stabilnost neposredno poslije impantiranja dijela proteze, naročito glede rotacijskih opterećenja.
Pogodno, poprečni presjek tijela prema distalnom kraju prelazi u kružni poprečni presjek, a na distalnom dijelu tijela je lateralno oblikovana klinasta površina koja poprečni presjek tijela prema distalnom kraju reducira u segmente kružne površine.
Prema jednom pogodnom obliku izuma, distalni segment tijela proteze je savijen prema ventralnom smjeru pod unaprijed određenim kutom a koji je poželjno u području između 3° i 50°. Na ovaj način je tijelo proteze bolje prilagođeno toku šupljeg prostora kosti, a impantiranje proteze će na taj način biti pojednostavljeno.
Daljnje prednosti oblikovanja izuma su navedene prema pojedinim točkama zahtjeva. U daljnjem toku je pomoću crteža pobliže pojašnjen jedan primjer realizacije.
Slika 1 prikazuje bočni pogled na gornji dio proteze butne kosti u pogledu s ventralne strane;
Slika 2 prikazuje poprečni presjek duž crte A-A sa slike 1 kroz proksimalni dio tijela;
Slika 3 je lateralni pogled na gornji dio proteze butne kosti;
Slika 4 je medijalni pogled na gornji dio proteze butne kosti; i
Slika 5 je pogled u perspektivi na gornji dio proteze butne kosti.
Slike 1 do 5 prikazuju gornji dio butne endoproteze zgloba kuka u različitim pogledima. Gornji dio proteze ima tijelo 2, čiji se poprečni presjek od distalnog kraja 8 tijela stalno povećava do proksimalnog kraja 12. Poprečni presjek tijela 2 je po cijeloj dužini prilagođen prirodnom ljudskom femuru kosti. Poprečni presjek je u distalnom području 4 tijela skoro kružnog oblika, a u proksimalnom području 6 tijela poprima ovalni oblik koji se proteže u medijalno-lateralnom smjeru, dakle u medijalno-lateralnom smjeru se više povećava nego u ventralno-dorzalnom smjeru.
Na proksimalnom kraju 12 tijela 2 nedostaje oslanjajuća ogrlica, ali je predviđen lateralni naslon koji povećava rotacijsku stabilnost, naročito odmah nakon postupka implantiranja.
Na proksimalnom kraju 12 tijela je oblikovan nasadni konus koji je usmjeren pod tzv. CCD-kutom u odnosu na uzdužnu os 3 tijela. Nasadni konus 16 služi za to da se glava proteze (nije prikazana) natakne s odgovarajućim konusnim udubljenjem i time se može tijesno i čvrsto učvrstiti na gornjem dijelu butne proteze. Međutim, alternativno je moguće da se na proksimalnom kraju tijela jednodijelno oblikuje vrat proteze s glavom proteze, u produžetku.
Distalni segment 4 tijela - s unaprijed određenom dužinom je ventralno nagnut ili savijen da bi se na taj način omogućilo bolje prilagođenje oblika na šuplji prostor kosti ljudskog femura, a time ostvarila i mogućnost jednostavnije implantacije. Distalni segment 4 tijela dalje ima prema distalnom kraju 8 tijela lateralno klinasto oblikovanu površinu 10 koja kružni poprečni presjek prema dolje reducira u segmente kružnih površina.
U proksimalnom području tijela 2 je ventralno i dorzalno oblikovana ravna osnovna površina 20, a prema proksimalnom kraju 12 tijela povećava se poprečni presjek tijela u ventralno-dorzalnom smjeru u više stepenika 22, 28, 32 koji s unaprijed određenom visinom naliježu s distalno usmjerenim stepenastirn rubom 24, 30, 34 i tada se prema proksimalnom kraju 12 tijela povećavaju u njihovoj medijalno-lateralnoj širini. Na ventralnoj strani i dorzalnoj strani tijela 2 je postavljen bar po jedan stepenik 22. U prikazanom obliku realizacije se na ventralnoj strani i na dorzalnoj strani tijela nalazi uvijek više stepenika 22, 28, 32 koji su prema proksimalnom kraju pomaknuto raspoređeni jedan na drugom, a njihovi stepenasti rubovi su uvijek na udaljenosti od stepenastog ruba ispod njih i na taj način postižu stepenast porast poprečnog presjeka vratila. Svi stepenici idu do proksimalnog kraja 12 tijela, prvi stepenik 22 se distalno proteže najdalje, on ima najveću lateralno-medijalnu širinu. Drugi stepenik 28 se distalno proteže kraće, medijalno-lateralna širina je reducirana u odnosu na prvi stepenik. Treći stepenik 32 se distalno još kraće širi, njegovo lateralno-medijalno širenje je manje od istog kod drugog stepenika 28 koji prednjači. Svi stepenici u prikazanom obliku relaizacije imaju konstantnu visinu rubova, a stepenaste površine su ravne. Kao što se osobito može vidjeti na slikama 3 i 4, stepenaste površine su time međusobno paralelne. Stupnjevanje na ventralnoj strani odgovara kao zrcalna slika stupnjevanju na dorzalnoj strani tijela 2.
Claims (16)
1. Gornji dio butne endoproteze zgloba kuka, s tijelom čiji se poprečni presjek od distalnog kraja tijela prema proksimalnom kraju tijela kontinuirano povećava, i u proksimalnom području tijela se širi ovalno u medijalno/lateralnom smjeru, naznačen time, što je prema proksimalnom kraju (12) tijela rast poprečnog presjeka u ventralno/dorzalnom smjeru u više stepenika (22, 28, 32), čija se medijalno lateralna širina povećava od distalnog stepenastog ruba (24) prema proksimalnom kraju (12) tijela.
2. Gornji dio butne endoproteze zgloba kuka, prema zahtjevu 1, naznačen time, što se na ventralnoj strani i dorzalnoj strani tijela (2) nalazi bar jedan stepenik (22).
3. Gornji dio butne endoproteze zgloba kuka, prema zahtjevima l ili 2, naznačen time, što je na ventralnoj strani tijela (2) uvijek više stepenika (22, 28, 32) prema proksimalnom kraju (12) tijela (2) pomaknuto raspodijeljeno jedan prema drugom i što je rub (29) sljedećeg višeg stepenika (28) uvijek na udaljenosti od ruba (23) neposredno višeg stepenika (22).
4. Gornji dio butne endoproteze zgloba kuka, prema jednom od prethodnih zahtjeva, naznačen time, što je visina rubova pojedinačnih stepenika (22, 28, 32) konstantna po stepeniku.
5. Gornji dio butne endoproteze zgloba kuka, prema jednom od prethodnih zahtjeva, naznačen time, što je visina rubova svih stepenika (22, 28, 32) jednaka.
6. Gornji dio butne endoproteze zgloba kuka, prema jednom od zahtjeva 1 do 3, naznačen time, što se visina rubova pojedinačnih stepenika u proksimalnom smjeru kontinuirano povećava.
7. Gornji dio butne endoproteze zgloba kuka, prema jednom od prethodnih zahtjeva, naznačen time, što su gornje površine stepenika (22, 28, 32) ravne.
8. Gornji dio butne endoproteze zgloba kuka, prema jednom od prethodnih zahtjeva, naznačen time, što su gornje površine ventralnih stepenika (22, 28, 32) paralelne s gornjim površinama dorzalnih stepenika (22, 28, 32).
9. Gornji dio butne endoproteze zgloba kuka, prema jednom od prethodnih zahtjeva, naznačen time, što je u proksimalnom području tijela (2) ventralno i dorzalno oblikovana po jedna ravna površina (20) na koju je postavljen prvi stepenik (22).
10. Gornji dio butne endoproteze zgloba kuka, prema zahtjevu 9, naznačen time, što su ventralne i dorzalne osnovne površine (20) međusobno paralelne.
11. Gornji dio butne endoproteze zgloba kuka, prema jednom od prethodnih zahtjeva, naznačen time, što je na proksimalnom kraju (12) tijela (2) predviđen nasadni konus (16) za učvršćivanje glave proteze.
12. Gornji dio butne endoproteze zgloba kuka, prema jednom od zahtjeva l do 10, naznačen time, što je na proksimalnom kraju (12) tijela (2) raspoređen vrat proteze s oblikovanom glavom proteze.
13. Gornji dio butne endoproteze zgloba kuka, prema jednom od prethodnih zahtjeva, naznačen time, stoje proksimalnom području tijela (2) lateralno oblikovan oslonac (14).
14. Gornji dio butne endoproteze zgloba kuka, prema jednom od prethodnih zahtjeva, naznačen time, što poprečni presjek tijela (2) prema distalnom kraju prelazi u kružni poprečni presjek.
15. Gornji dio butne endoproteze zgloba kuka, prema jednom od prethodnih zahtjeva, naznačen time, što je u distalnom području (4) tijela (2) lateralno predviđena klinasta površina (10).
16. Gornji dio butne endoproteze zgloba kuka, prema jednom od prethodnih zahtjeva, naznačen time, što je distalni segment (4) tijela savijen u ventralnom smjeru.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19547638A DE19547638C2 (de) | 1995-12-20 | 1995-12-20 | Oberschenkelteil einer Hüftgelenkendoprothese |
Publications (1)
Publication Number | Publication Date |
---|---|
HRP960604A2 true HRP960604A2 (en) | 1997-10-31 |
Family
ID=7780692
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HR19547638.7A HRP960604A2 (en) | 1995-12-20 | 1996-12-19 | The upper part of the femoral component of a hip joint endoprosthesis |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0780106B1 (hr) |
AT (1) | ATE250401T1 (hr) |
CZ (1) | CZ367896A3 (hr) |
DE (2) | DE19547638C2 (hr) |
EE (1) | EE9600206A (hr) |
HR (1) | HRP960604A2 (hr) |
HU (1) | HUP9603529A3 (hr) |
PL (1) | PL317575A1 (hr) |
YU (1) | YU68296A (hr) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19730073C1 (de) * | 1997-07-14 | 1999-07-15 | Jansson Volkmar Priv Doz Dr Me | Endoprothesensystem |
EP1438932A1 (de) | 2003-01-17 | 2004-07-21 | WALDEMAR LINK GmbH & Co. KG | Hüftprothese mit einem in den Oberschenkelknochen einzusetzenden Schaft |
DE10329673A1 (de) * | 2003-07-01 | 2005-01-27 | Intraplant Ag | Oberschenkelteil einer Hüftgelenkendoprothese |
EP1498090A1 (de) | 2003-07-16 | 2005-01-19 | WALDEMAR LINK GmbH & Co. KG | Hüftprothese mit einem in den Oberschenkelknochen einzusetzenden Schaft |
DE102010002322B4 (de) * | 2010-02-25 | 2013-03-07 | Merete Medical Gmbh | Oberschenkelteil einer Hüftgelenkprothese sowie Hüftgelenkprothese |
GB201006527D0 (en) | 2010-04-19 | 2010-06-02 | Mcminn Derek J W | Femoral implant |
EP2484314A1 (en) * | 2011-01-27 | 2012-08-08 | Zimmer GmbH | Straight stem for the implantation into a proximal femur |
EP2941223A1 (de) * | 2013-01-02 | 2015-11-11 | Waldemar Link GmbH & Co. KG | Hüftprothese mit optimiertem schaft |
CN106890036B (zh) * | 2017-02-20 | 2018-10-09 | 上海交通大学医学院附属第九人民医院 | 一种个体化股骨短柄 |
EP3714841B1 (de) * | 2019-03-25 | 2022-03-16 | Justus-Liebig-Universität Gießen | Kurzschaftprothese |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4068324A (en) * | 1977-01-19 | 1978-01-17 | Bio-Dynamics Inc. | Platform supported hip prosthesis |
US4408359A (en) * | 1981-04-07 | 1983-10-11 | New York Society For The Relief Of The Ruptured And Crippled, Maintaining The Hospital For Special Surgery | Hip joint prosthesis |
DE3213434C1 (de) * | 1982-04-10 | 1983-10-27 | Günther Dr.med. 7400 Tübingen Aldinger | Verfahren zur Herstellung individuell gestalteter Endoprothesen oder Implantate |
CH656797A5 (de) * | 1982-12-20 | 1986-07-31 | Sulzer Ag | Femurkopfprothese. |
US4738681A (en) * | 1985-07-10 | 1988-04-19 | Harrington Arthritis Research Center | Femoral-joint prosthetic device |
GB2203943B (en) * | 1987-04-22 | 1991-06-05 | Finsbury | Hip implant |
DE3829361A1 (de) * | 1988-02-10 | 1989-08-24 | Orthoplant Endoprothetik | Einzementierbares oberschenkelteil einer hueftgelenk-endoprothese |
FR2637493B3 (fr) * | 1988-10-10 | 1991-01-25 | Biomecanique Integree | Patte de fixation pour une rotule de prothese de hanche |
FR2693367B3 (fr) * | 1992-07-09 | 1994-12-23 | Lepine Groupe | Tige fémorale pour prothèse de hanche. |
-
1995
- 1995-12-20 DE DE19547638A patent/DE19547638C2/de not_active Expired - Fee Related
-
1996
- 1996-12-13 CZ CZ963678A patent/CZ367896A3/cs unknown
- 1996-12-16 AT AT96120151T patent/ATE250401T1/de not_active IP Right Cessation
- 1996-12-16 EP EP96120151A patent/EP0780106B1/en not_active Expired - Lifetime
- 1996-12-16 DE DE69630102T patent/DE69630102T2/de not_active Expired - Lifetime
- 1996-12-18 PL PL96317575A patent/PL317575A1/xx unknown
- 1996-12-19 HR HR19547638.7A patent/HRP960604A2/hr not_active Application Discontinuation
- 1996-12-19 HU HU9603529A patent/HUP9603529A3/hu unknown
- 1996-12-19 YU YU68296A patent/YU68296A/sh unknown
- 1996-12-20 EE EE9600206A patent/EE9600206A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
CZ367896A3 (en) | 1997-07-16 |
DE69630102D1 (de) | 2003-10-30 |
EE9600206A (et) | 1997-08-15 |
DE19547638A1 (de) | 1997-06-26 |
YU68296A (sh) | 1999-03-04 |
HU9603529D0 (en) | 1997-02-28 |
PL317575A1 (en) | 1997-06-23 |
EP0780106A3 (en) | 1998-05-13 |
EP0780106B1 (en) | 2003-09-24 |
DE19547638C2 (de) | 1998-05-14 |
HUP9603529A3 (en) | 1999-03-29 |
HUP9603529A2 (en) | 1997-12-29 |
ATE250401T1 (de) | 2003-10-15 |
EP0780106A2 (en) | 1997-06-25 |
DE69630102T2 (de) | 2004-04-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6120544A (en) | Femur endoprosthesis for articial hip joint | |
US5800560A (en) | Hip prosthesis with adjustable head | |
US4731086A (en) | Shim for femoral knee joint prosthesis and method of using | |
CA2567800C (en) | Fluted intramedullary stem | |
US7892290B2 (en) | Fluted sleeve hip prosthesis for modular stem | |
US4406023A (en) | Stemmed femoral component for the human hip | |
US6749639B2 (en) | Coated prosthetic implant | |
EP0149527B1 (en) | Fixation of implants in bone | |
US4514865A (en) | Stemmed femoral component for the human hip | |
US5376124A (en) | Collared hip prosthesis with revision spacer | |
AU2001292950B2 (en) | Modular prosthetic component with improved body shape | |
US10485669B2 (en) | Prosthesis surface treatment and method for soft tissue attachment thereto | |
JP4118466B2 (ja) | 骨係合リブを有する移植可能なプロテーゼ | |
JP2004261574A (ja) | 補綴インプラント外科キットおよび整形用インプラント組立品 | |
CZ20031654A3 (cs) | Úplná nebo částečná náhrada dlouhé kosti | |
Griss et al. | Morphological and biomechanical aspects of Al2O3 ceramic joint replacement. Experimental results and design considerations for human endoprostheses | |
US6994731B2 (en) | Prosthetic implant | |
US7211113B2 (en) | Hip prosthesis | |
GB2236679A (en) | Bone implants, especially femoral prostheses | |
HRP960604A2 (en) | The upper part of the femoral component of a hip joint endoprosthesis | |
AU2004233594A1 (en) | Knee joint prosthesis | |
Wagner et al. | Conical Stem Fixation for Cementless Hip Protheses for Primary Implantation and Revisions | |
RU49447U1 (ru) | Эндопротез тазобедренного сустава | |
AU2007200241B2 (en) | Fluted sleeve hip prosthesis for modular stem | |
Zuckerman et al. | A review of the use of modularity in total shoulder arthroplasty |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A1OB | Publication of a patent application | ||
AIPI | Request for the grant of a patent on the basis of a substantive examination of a patent application | ||
ODBC | Application rejected |