WO1996023457A1 - Acetabular plug - Google Patents
Acetabular plug Download PDFInfo
- Publication number
- WO1996023457A1 WO1996023457A1 PCT/IB1995/001114 IB9501114W WO9623457A1 WO 1996023457 A1 WO1996023457 A1 WO 1996023457A1 IB 9501114 W IB9501114 W IB 9501114W WO 9623457 A1 WO9623457 A1 WO 9623457A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- plug
- bore
- cup
- acetabular cup
- acetabular
- 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
- A61F2/30744—End caps, e.g. for closing an endoprosthetic 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
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30108—Shapes
- A61F2002/30199—Three-dimensional shapes
- A61F2002/30205—Three-dimensional shapes conical
- A61F2002/30217—Three-dimensional shapes conical hollow cones, e.g. tubular-like cones
-
- 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
- A61F2002/30331—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
- A61F2002/30354—Cylindrically-shaped protrusion and recess, e.g. cylinder of circular basis
- A61F2002/30357—Stepped cylinders, 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
- 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
- A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
- A61F2002/30487—Circumferential cooperating grooves and beads on cooperating lateral surfaces of a mainly longitudinal connection
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- 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
- A61F2002/30476—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements locked by an additional locking mechanism
- A61F2002/305—Snap connection
-
- 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
- A61F2002/30667—Features concerning an interaction with the environment or a particular use of the prosthesis
- A61F2002/30682—Means for preventing migration of particles released by the joint, e.g. wear debris or cement particles
-
- 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
- A61F2002/30772—Apertures or holes, e.g. of circular cross section
- A61F2002/3079—Stepped or enlarged apertures, e.g. 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
- 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
- A61F2002/3401—Acetabular cups with radial apertures, e.g. radial bores for receiving fixation screws
- A61F2002/3403—Polar aperture
-
- 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
- A61F2/4637—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for connecting or disconnecting two parts of a prosthesis
- A61F2002/4641—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for connecting or disconnecting two parts of a prosthesis for disconnecting
-
- 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
-
- 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
- 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
- A61F2230/0067—Three-dimensional shapes conical
-
- 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
- A61F2310/00011—Metals or alloys
- A61F2310/00017—Iron- or Fe-based alloys, e.g. stainless steel
-
- 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
- A61F2310/00011—Metals or alloys
- A61F2310/00023—Titanium or titanium-based alloys, e.g. Ti-Ni alloys
-
- 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
- A61F2310/00011—Metals or alloys
- A61F2310/00029—Cobalt-based alloys, e.g. Co-Cr alloys or Vitallium
Definitions
- This invention relates generally to implants for use in hip surgery and relates more particularly to an acetabular implant with specially designed plugs for plugging observation holes in that device or holes used for screw fixation or other purposes.
- acetabular cups for use in hip surgery a hole or holes are sometimes present so as to enable the orthopedic surgeon to observe the placement of the acetabular cup in the patients acetabulum so as to see whether the cup is properly seated in the acetabulum. If the surgeon has sufficient expertise so as to know whether or not the cup is properly seated without actually seeing the placement of the cup, such a hole or holes in the acetabular cup may not be necessary.
- threaded plugs have a definite disadvantage of exhibiting micromotion if not properly locked or torqued. Thus, debris can penetrate the observation hole and come in contact with the patients bone. Also, threaded plugs require a drive mechanism for insertion into the acetabular cup and are easily and often cross-threaded (i.e., the threads may be improperly aligned).
- An object of this invention is a plug for use in closing an observation hole in an acetabular cup which does not exhibit micromotion and which thoroughly prevents debris from getting through the hole and down into the patients bone and which can also be removed from the acetabular cup.
- Another object of this invention is a method for inserting an acetabular cup into a patient, such that the cup is properly seated within the patients acetabulum and such that polymeric wear debris is prevented from coming into contact with the patients bone.
- a plug which can be used in an acetabular implant, which prevents polymeric debris from coming into contact with a patients bone, and which is also removable from the acetabular cup comprises: a hollow, threadless piece of metal substantially in the shape of a cup having a side portion, a rim, and a bottom portion, and having a taper over at least a portion of the side portion so that the plug and a special two-part bore (i.e., counterbore) within the acetabular cup fit together in an interference fit.
- a lip is present on the rim of the plug to facilitate removal of the plug, if desired.
- a kit for use in orthopedic hip surgery comprises such a metal plug (described above) and an acetabular cup with a special two-part bore (i.e., counterbore) located therein for placement of that acetabular cup within the patients body such that the metal plug and the bore fit together in an interference fit, the plug cannot be pushed through the bore and the plug is extractable, if desired, from the bore.
- a metal plug described above
- an acetabular cup with a special two-part bore i.e., counterbore
- a method for inserting an acetabular cup into a patient such that the cup is properly seated within the patients acetabulum and such that polymeric wear debris is prevented from coming into contact with the patients bone comprises: (a) inserting the acetabular cup of the kit of the invention (described above) into the acetabulum of a patient, using the observation hole to properly seat the acetabular cup and (2) then inserting the metal plug of the kit of the invention into the observation hole so as to close the observation hole and so as to prevent debris from passing through the observation hole into the bone of the patient.
- Fig. 1 shown in cross-section is a preferred embodiment of a tapered metallic plug for use with a metallic acetabular cup having a two-part bore therewithin (not shown in Fig. 1), the plug being tapered along the entire length of the side portion.
- Fig. 1A shown in cross-section is an alternative preferred embodiment of a metal plug for use with a metallic acetabular cup, the plug being tapered along only a portion of the side portion of the plug.
- Fig. 2 is shown a cross-section of a preferred embodiment of an acetabular cup having a two-part bore located at the bottom of the hemispherical portion of the cup, that bore having a shoulder therewithin and to be used with the plug of Fig. 1.
- Fig. 3 is shown a cross-sectional view of the acetabular cup of Fig. 2, together with the plug shown in Fig. 1 prior to the plug's being fully inserted into the bore of the acetabular cup.
- Fig. 4 is shown in cross-section the plug of Fig. 1 after it has been inserted into the acetabular cup of Fig. 2 and is seated therewithin such that the bottom of the plug contacts the shoulder of the bore.
- a preferred embodiment of the acetabular plug 10 of the invention is shown in cross-section.
- the plug 10 is made of metal and is itself substantially in the shape of a cup, and has a hollow portion 12, a substantially flat bottom portion 14, and a side portion 15 which has a taper 16 on at least a portion thereof.
- the side portion 15 has a taper 18 along the entire side thereof.
- the taper 18 extends only along a portion of side portion 15 (sometimes referred to as a "leader").
- the taper 18 is tapered at an angle a (alpha) with respect to a line which is perpendicular (or normal) to the substantially flat bottom portion 14 of the plug 10.
- Fig. 2 is shown a cross-sectional view of a preferred embodiment of an acetabular cup for use with the plug of the invention.
- the acetabular cup is referred to generally as 24 and has a substantially hemispherical shape, has a hollowed out portion 26, in which the ball portion (not shown) of a hip implant will be free to rotate within a polyethylene shell (not shown) within the acetabular cup 24 when the cup 24 is positioned within a patient's acetabulum.
- the outer surface 28 of the acetabular cup 24 will contact the acetabulum bone of the patient when the acetabular cup 24 is implanted within the patients acetabulum. Ridges 29 in the cup 24 are present for holding a polyethylene insert (not shown) within the cup 24.
- a bore 30 will preferably be drilled through the outer surface 28 of acetabular cup 24.
- bore 30 will be positioned such that the centeriine 32 through bore 30 passes through the center 34 of the hemisphere which makes up acetabular cup 24.
- Bore 30 has a total height H, 36, which is the sum of two parts, height h, 38 plus height h 2 40.
- Bore 30 is made up of a first bore portion 42 and a second bore portion 44.
- First bore portion 42 has a diameter 46 and second bore portion has a diameter 48, such that diameter 48 of second bore portion 44 is larger than diameter
- acetabular plug 10 have a taper 16 along at least a portion of side portion 15 so that an interference fit between side portion 15 and second bore portion 44 results.
- second bore portion 44 and first bore portion 42 will be formed as cylinders with straight sides having no taper for ease of manufacture of the bore (used for visualizing placement of the acetabular cup 24).
- side portion 15 of acetabular plug 10 can be tapered along only a portion thereof, that is, near the top edge 52 of side portion 15 which lies farthest from substantially flat bottom portion 14 of plug 10. Top edge 52 can extend inwardly to be a lip 53 (as shown in Fig. 3) for ease in removal of the plug 10 if removal is desired.
- acetabular plug 10 is shown just prior to its being inserted into second bore portion 44 of bore 30. Corresponding parts are numbered correspondingly in
- acetabular plug 10 is shown seated within second bore portion 44 of bore 30, such that the progress of plug 10 is stopped by shoulder 50.
- the plug 10 of the invention will be made of a biocompatible material, for example cobalt-chromium-molybdenum, stainless steel, or titanium.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP95937152A EP0806919A1 (en) | 1995-01-31 | 1995-12-11 | Acetabular plug |
JP8523367A JPH10502853A (en) | 1995-01-31 | 1995-12-11 | Acetabular obturator |
MXPA/A/1997/005822A MXPA97005822A (en) | 1995-01-31 | 1997-07-30 | Tapon acetabu |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US38178895A | 1995-01-31 | 1995-01-31 | |
US08/381,788 | 1995-01-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996023457A1 true WO1996023457A1 (en) | 1996-08-08 |
Family
ID=23506360
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB1995/001114 WO1996023457A1 (en) | 1995-01-31 | 1995-12-11 | Acetabular plug |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0806919A1 (en) |
JP (1) | JPH10502853A (en) |
CA (1) | CA2208744A1 (en) |
WO (1) | WO1996023457A1 (en) |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0767635A1 (en) * | 1994-07-25 | 1997-04-16 | Joint Medical Products Corporation | Acetabular prosthesis |
US5925077A (en) * | 1997-04-02 | 1999-07-20 | Biomet, Inc. | Apparatus and method for plugging holes in an acetabular shell component |
DE19755246C1 (en) * | 1997-12-12 | 2000-03-30 | Aesculap Ag & Co Kg | Hip joint prosthesis socket has cup section and cap connected by tongue and groove fastenings |
EP1163891A1 (en) * | 2000-06-17 | 2001-12-19 | Biomet Merck Deutschland GmbH | Closure element for endoprostheses system |
US6413259B1 (en) | 2000-12-14 | 2002-07-02 | Blackstone Medical, Inc | Bone plate assembly including a screw retaining member |
WO2003039410A1 (en) * | 2001-11-07 | 2003-05-15 | Xaver Kuoni | Artificial joint prosthesis with closing element |
US6610097B2 (en) | 2000-03-15 | 2003-08-26 | Depuy Orthopaedics, Inc. | Prosthetic cup assembly which includes components possessing self-locking taper and associated method |
US7326253B2 (en) | 2001-11-16 | 2008-02-05 | Depuy Products, Inc. | Prosthetic cup assembly having increased assembly congruency |
US7951151B2 (en) | 2006-02-21 | 2011-05-31 | Life Spine, Inc. | Structure for joining and retaining multi-part orthopedic implants |
US8182518B2 (en) | 2003-12-22 | 2012-05-22 | Life Spine, Inc. | Static and dynamic cervical plates and cervical plate constructs |
US8348949B2 (en) | 2008-08-29 | 2013-01-08 | Life Spine, Inc. | Single-sided dynamic spine plates |
US9445903B2 (en) | 2008-11-24 | 2016-09-20 | Biomet Manufacturing, Llc | Multi-bearing acetabular prosthesis |
US9445904B2 (en) | 2009-07-14 | 2016-09-20 | Biomet Manufacturing, Llc | Multiple bearing acetabular prosthesis |
US9649198B2 (en) | 2011-04-29 | 2017-05-16 | Life Spine, Inc. | Spinal interbody implant with bone screw retention |
US9877759B2 (en) | 2014-02-06 | 2018-01-30 | Life Spine, Inc. | Foot implant for bone fixation |
US9889014B2 (en) | 2014-02-06 | 2018-02-13 | Life Spine, Inc. | Implant for bone fixation |
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JP4517045B2 (en) * | 2005-04-01 | 2010-08-04 | 独立行政法人産業技術総合研究所 | Pitch estimation method and apparatus, and pitch estimation program |
DE102007031666A1 (en) * | 2006-08-04 | 2008-02-14 | Ceramtec Ag Innovative Ceramic Engineering | Asymmetric design of pans and / or cup inserts for manipulation and suppression of natural frequencies |
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EP0244720A1 (en) * | 1986-05-05 | 1987-11-11 | GebràDer Sulzer Aktiengesellschaft | Recesses in orthopaedic or surgical implants for containing a medication |
US4955325A (en) * | 1989-06-14 | 1990-09-11 | Osteonics Corp. | Acetabular cup component cement spacer system |
EP0444381A1 (en) * | 1990-03-01 | 1991-09-04 | GebràDer Sulzer Aktiengesellschaft | Metal hip socket which can be fitted without cement |
WO1994005234A1 (en) * | 1992-08-31 | 1994-03-17 | Smith & Nephew Richards Inc. | Acetabular cup body prosthesis |
EP0666067A1 (en) * | 1994-02-07 | 1995-08-09 | SULZER Medizinaltechnik AG | Acetabular cup of a hip joint prothesis having at least two shells and hip joint prosthesis with such an acetabular cup |
EP0666068A1 (en) * | 1994-02-07 | 1995-08-09 | SULZER Medizinaltechnik AG | Outer shell a hip joint prosthesis acetabular cup having at least two shells and hip joint prosthesis with such an outer shell |
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- 1995-12-11 WO PCT/IB1995/001114 patent/WO1996023457A1/en not_active Application Discontinuation
- 1995-12-11 JP JP8523367A patent/JPH10502853A/en active Pending
- 1995-12-11 CA CA002208744A patent/CA2208744A1/en not_active Abandoned
- 1995-12-11 EP EP95937152A patent/EP0806919A1/en not_active Withdrawn
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EP0244720A1 (en) * | 1986-05-05 | 1987-11-11 | GebràDer Sulzer Aktiengesellschaft | Recesses in orthopaedic or surgical implants for containing a medication |
US4955325A (en) * | 1989-06-14 | 1990-09-11 | Osteonics Corp. | Acetabular cup component cement spacer system |
EP0444381A1 (en) * | 1990-03-01 | 1991-09-04 | GebràDer Sulzer Aktiengesellschaft | Metal hip socket which can be fitted without cement |
WO1994005234A1 (en) * | 1992-08-31 | 1994-03-17 | Smith & Nephew Richards Inc. | Acetabular cup body prosthesis |
EP0666067A1 (en) * | 1994-02-07 | 1995-08-09 | SULZER Medizinaltechnik AG | Acetabular cup of a hip joint prothesis having at least two shells and hip joint prosthesis with such an acetabular cup |
EP0666068A1 (en) * | 1994-02-07 | 1995-08-09 | SULZER Medizinaltechnik AG | Outer shell a hip joint prosthesis acetabular cup having at least two shells and hip joint prosthesis with such an outer shell |
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0767635A1 (en) * | 1994-07-25 | 1997-04-16 | Joint Medical Products Corporation | Acetabular prosthesis |
EP0767635A4 (en) * | 1994-07-25 | 1998-11-18 | Joint Medical Products Corp | Acetabular prosthesis |
US5925077A (en) * | 1997-04-02 | 1999-07-20 | Biomet, Inc. | Apparatus and method for plugging holes in an acetabular shell component |
DE19755246C1 (en) * | 1997-12-12 | 2000-03-30 | Aesculap Ag & Co Kg | Hip joint prosthesis socket has cup section and cap connected by tongue and groove fastenings |
US6610097B2 (en) | 2000-03-15 | 2003-08-26 | Depuy Orthopaedics, Inc. | Prosthetic cup assembly which includes components possessing self-locking taper and associated method |
EP1163891A1 (en) * | 2000-06-17 | 2001-12-19 | Biomet Merck Deutschland GmbH | Closure element for endoprostheses system |
DE10029637A1 (en) * | 2000-06-17 | 2002-01-03 | Biomet Merck Deutschland Gmbh | endoprosthesis |
DE10029637C2 (en) * | 2000-06-17 | 2002-04-11 | Biomet Merck Deutschland Gmbh | endoprosthesis |
US6413259B1 (en) | 2000-12-14 | 2002-07-02 | Blackstone Medical, Inc | Bone plate assembly including a screw retaining member |
WO2003039410A1 (en) * | 2001-11-07 | 2003-05-15 | Xaver Kuoni | Artificial joint prosthesis with closing element |
US7326253B2 (en) | 2001-11-16 | 2008-02-05 | Depuy Products, Inc. | Prosthetic cup assembly having increased assembly congruency |
US8182518B2 (en) | 2003-12-22 | 2012-05-22 | Life Spine, Inc. | Static and dynamic cervical plates and cervical plate constructs |
US7951151B2 (en) | 2006-02-21 | 2011-05-31 | Life Spine, Inc. | Structure for joining and retaining multi-part orthopedic implants |
US8348949B2 (en) | 2008-08-29 | 2013-01-08 | Life Spine, Inc. | Single-sided dynamic spine plates |
US9445903B2 (en) | 2008-11-24 | 2016-09-20 | Biomet Manufacturing, Llc | Multi-bearing acetabular prosthesis |
US9445904B2 (en) | 2009-07-14 | 2016-09-20 | Biomet Manufacturing, Llc | Multiple bearing acetabular prosthesis |
US9649198B2 (en) | 2011-04-29 | 2017-05-16 | Life Spine, Inc. | Spinal interbody implant with bone screw retention |
USD789839S1 (en) | 2011-04-29 | 2017-06-20 | Life Spine, Inc. | Screw retention for interbody implant |
US9877759B2 (en) | 2014-02-06 | 2018-01-30 | Life Spine, Inc. | Foot implant for bone fixation |
US9889014B2 (en) | 2014-02-06 | 2018-02-13 | Life Spine, Inc. | Implant for bone fixation |
US10117750B2 (en) | 2014-02-06 | 2018-11-06 | Life Spine, Inc. | Implant for bone fixation |
US10117691B2 (en) | 2014-02-06 | 2018-11-06 | Life Spine, Inc. | Implant for bone fixation |
USD855184S1 (en) | 2014-02-06 | 2019-07-30 | Life Spine, Inc. | Implant for bone fixation |
USD857201S1 (en) | 2015-02-06 | 2019-08-20 | Life Spine, Inc. | Implant for bone fixation |
Also Published As
Publication number | Publication date |
---|---|
MX9705822A (en) | 1997-10-31 |
JPH10502853A (en) | 1998-03-17 |
CA2208744A1 (en) | 1996-08-08 |
EP0806919A1 (en) | 1997-11-19 |
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