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1. WO1997025939 - FIXTURE AND PROSTHESIS INCLUDING THE SAME

Publication Number WO/1997/025939
Publication Date 24.07.1997
International Application No. PCT/SE1997/000058
International Filing Date 16.01.1997
Chapter 2 Demand Filed 12.08.1997
IPC
A61B 17/74 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
17Surgical instruments, devices or methods, e.g. tourniquets
56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
58for osteosynthesis, e.g. bone plates, screws or the like
68Internal fixation devices
74Devices for the head of the femur
A61B 17/86 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
17Surgical instruments, devices or methods, e.g. tourniquets
56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
58for osteosynthesis, e.g. bone plates, screws or the like
68Internal fixation devices
84Fasteners therefor
86Pins or screws
A61C 8/00 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
8Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
A61F 2/00 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS 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
2Filters 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
A61F 2/30 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS 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
2Filters 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
02Prostheses implantable into the body
30Joints
A61F 2/36 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS 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
2Filters 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
02Prostheses implantable into the body
30Joints
32for the hip
36Femoral heads
CPC
A61B 17/742
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
17Surgical instruments, devices or methods, e.g. tourniquets
56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
58for osteosynthesis, e.g. bone plates, screws, ; setting implements; or the like
68Internal fixation devices ; , including fasteners and spinal fixators, even if a part thereof projects from the skin
74Devices for the head ; or neck or trochanter; of the femur
742having one or more longitudinal elements oriented along or parallel to the axis of the neck
A61B 17/863
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
17Surgical instruments, devices or methods, e.g. tourniquets
56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
58for osteosynthesis, e.g. bone plates, screws, ; setting implements; or the like
68Internal fixation devices ; , including fasteners and spinal fixators, even if a part thereof projects from the skin
84Fasteners therefor ; or fasteners being internal fixation devices
86Threaded wires; , pins or screws; ; Nuts therefor
8625Shanks, i.e. parts contacting bone tissue
863with thread interrupted or changing its form along shank, other than constant taper
A61B 17/8635
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
17Surgical instruments, devices or methods, e.g. tourniquets
56Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
58for osteosynthesis, e.g. bone plates, screws, ; setting implements; or the like
68Internal fixation devices ; , including fasteners and spinal fixators, even if a part thereof projects from the skin
84Fasteners therefor ; or fasteners being internal fixation devices
86Threaded wires; , pins or screws; ; Nuts therefor
8625Shanks, i.e. parts contacting bone tissue
8635Tips of screws
A61C 8/0022
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
8Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
0018characterised by the shape
0022Self-screwing
A61F 2/30749
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS 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
2Filters 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
02Prostheses implantable into the body
30Joints
30721Accessories
30749Fixation appliances for connecting prostheses to the body
A61F 2/3601
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
FFILTERS 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
2Filters 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
02Prostheses implantable into the body
30Joints
32for the hip
36Femoral heads ; ; Femoral endoprostheses
3601for replacing only the epiphyseal or metaphyseal parts of the femur, e.g. endoprosthetic femoral heads or necks directly fixed to the natural femur by internal fixation devices
Applicants
  • ASTRA AKTIEBOLAG [SE]/[SE] (AllExceptUS)
  • ALBREKTSSON, Björn [SE]/[SE] (UsOnly)
  • CARLSSON, Lars [SE]/[SE] (UsOnly)
  • JACOBSSON, Magnus [SE]/[SE] (UsOnly)
  • RÖSTLUND, Tord [SE]/[SE] (UsOnly)
  • WENNBERG, Stig [SE]/[SE] (UsOnly)
Inventors
  • ALBREKTSSON, Björn
  • CARLSSON, Lars
  • JACOBSSON, Magnus
  • RÖSTLUND, Tord
  • WENNBERG, Stig
Agents
  • ASTRA AKTIEBOLAG
Priority Data
9600208-419.01.1996SE
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) FIXTURE AND PROSTHESIS INCLUDING THE SAME
(FR) DISPOSITIF DE FIXATION ET PROTHESE DOTEE DE CELUI-CI
Abstract
(EN)
The invention relates to a fixture for insertion into and permanent anchorage in a cavity (32) formed in bone tissue. The fixture comprises a fixture member (2), which has an insertion end surface (10) and a cylindrical peripheral surface (6) provided with screw threads, and a plurality of circumferentially-spaced cutting recesses (9), which are formed in a forward, self-tapping end portion (7) of the threaded peripheral surface (6) adjacent to said insertion end surface (10) and which open axially into said insertion end surface (10). A plurality of circumferentially-spaced tissue-collecting and tissue-distributing grooves (17) are formed in a rear, non-self-tapping portion (8) of the threaded peripheral surface (6). The grooves (17) open radially outwards and extend at least partially in the longitudinal direction of the fixture member (2), and each groove (17) is, at a forward end thereof, connected to one of said cutting recesses (9) for collecting cut-off bone material (B) therefrom and guiding it radially out of the grooves (17) in order to distribute the cut-off bone material (B) circumferentially around the inner wall of the cavity (32) during the insertion of the fixture.
(FR)
La présente invention concerne un dispositif de fixation destiné à être introduit dans une cavité (32) formée dans un tissu osseux et à y être ancrée de manière permanente. Ce dispositif comprend un élément de fixation (2) présentant une surface terminale d'introduction (10) ainsi qu'une surface périphérique cylindrique (6) pourvue de filets, et un certain nombre de renfoncements (9) coupants, répartis sur la circonférence, qui sont formés dans une partie d'extrémité (7) avant autotaraudeuse de la surface périphérique filetée (6) voisine de la surface d'extrémité d'introduction (10), et qui s'ouvrent axialement dans celle-ci (10). Un certain nombre de rainures (17) réparties sur la circonférence, qui recueillent et répartissent des tissus, sont formées dans une partie arrière, non autotaraudeuse (8), de la surface périphérique filetée (6). Les rainures (17) s'ouvrent radialement vers l'extérieur et elles s'étendent, au moins en partie, dans la direction longitudinale de l'élément de fixation (2), et chaque rainure (17) est reliée, à son extrémité avant, à l'un des renfoncements coupants (9), pour en recueillir la matière osseuse coupée (B) et la guider, dans une direction radiale, hors des rainures (17), afin de la (B) répartir à la circonférence, autour de la paroi intérieure de la cavité (32), lors de l'introduction de la fixation.
Latest bibliographic data on file with the International Bureau