CA2003247A1 - Bone screw - Google Patents
Bone screwInfo
- Publication number
- CA2003247A1 CA2003247A1 CA2003247A CA2003247A CA2003247A1 CA 2003247 A1 CA2003247 A1 CA 2003247A1 CA 2003247 A CA2003247 A CA 2003247A CA 2003247 A CA2003247 A CA 2003247A CA 2003247 A1 CA2003247 A1 CA 2003247A1
- Authority
- CA
- Canada
- Prior art keywords
- bone
- screw
- bone screw
- diameter
- threaded
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/8625—Shanks, i.e. parts contacting bone tissue
Abstract
In this bone screw with a screw head (1), a smooth shaft part (2) and a threaded part (3) with internal diameter d1 and external diameter d2, there is provided between the smooth shaft part (2) and the threaded part (3) a transition part (4) which tapers from the smooth shaft part (2) with diameter D1 towards the threaded part (3) with diameter D2, the ratio D1-D2/D2 being smaller than the breaking elongation of the bone.
By virtue of the bone screw according to the invention, a desired radial prestress is obtained in the bone bore, which is at least partially retained even in the case of additional, functional loads on the bone screw, so that there is no loosening and no resulting resorption of the bone tissue; moreover, only a single threaded drill need be used in order to screw the shaft of the bone screw securely, but without damage to the bone, into the bore.
<IMAGE>
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH4263/88A CH681957A5 (en) | 1988-11-17 | 1988-11-17 | |
CH04263/88-3 | 1988-11-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2003247A1 true CA2003247A1 (en) | 1990-05-17 |
CA2003247C CA2003247C (en) | 1996-02-20 |
Family
ID=4272883
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002003247A Expired - Lifetime CA2003247C (en) | 1988-11-17 | 1989-11-17 | Bone screw |
Country Status (7)
Country | Link |
---|---|
US (1) | US5019078A (en) |
EP (1) | EP0369266B1 (en) |
JP (1) | JPH0691888B2 (en) |
AT (1) | ATE129880T1 (en) |
CA (1) | CA2003247C (en) |
CH (1) | CH681957A5 (en) |
DE (1) | DE58909487D1 (en) |
Families Citing this family (45)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9017101U1 (en) * | 1990-12-19 | 1991-04-11 | Gerhard Hug Gmbh, 7801 Umkirch, De | |
US5584887A (en) * | 1991-08-15 | 1996-12-17 | Smith & Nephew Richards, Inc. | Percutaneous screw adapter |
FR2680461B1 (en) * | 1991-08-19 | 1993-11-26 | Fabrication Mat Orthopedique | IMPLANT FOR OSTEOSYNTHESIS DEVICE, ESPECIALLY OF THE RACHIS, AND CORRESPONDING DEVICE FOR ITS PLACEMENT. |
US5275601A (en) * | 1991-09-03 | 1994-01-04 | Synthes (U.S.A) | Self-locking resorbable screws and plates for internal fixation of bone fractures and tendon-to-bone attachment |
US5217461A (en) * | 1992-02-20 | 1993-06-08 | Acromed Corporation | Apparatus for maintaining vertebrae in a desired spatial relationship |
US5397356A (en) * | 1993-01-15 | 1995-03-14 | Depuy Inc. | Pin for securing a replacement ligament to a bone |
US5871486A (en) * | 1993-01-21 | 1999-02-16 | Acumed, Inc. | Variable pitch bone screw |
US8070786B2 (en) | 1993-01-21 | 2011-12-06 | Acumed Llc | System for fusing joints |
US9161793B2 (en) | 1993-01-21 | 2015-10-20 | Acumed Llc | Axial tension screw |
US5964768A (en) * | 1993-01-21 | 1999-10-12 | Acumed, Inc. | Tapered bone screw with continuously varying pitch |
DE69430540T2 (en) * | 1993-01-21 | 2002-10-31 | Acumed Inc | TAPERED BONE SCREW WITH VARIOUS THREAD INCLINE |
US6984235B2 (en) * | 1993-01-21 | 2006-01-10 | Acumed Llc | System for fusing joints |
US6299615B1 (en) | 1993-01-21 | 2001-10-09 | Acumed, Inc. | System for fusing joints |
US6030162A (en) * | 1998-12-18 | 2000-02-29 | Acumed, Inc. | Axial tension screw |
DK0642323T3 (en) * | 1993-03-25 | 1999-10-04 | Pennig Dietmar | Fixation pin for osteosynthesis |
US5609595A (en) * | 1993-03-25 | 1997-03-11 | Pennig; Dietmar | Fixation pin for small-bone fragments |
DE4339804A1 (en) * | 1993-11-23 | 1995-06-01 | Haerle Anton | Power transmission link for osteosynthesis work |
US6264676B1 (en) | 1996-11-08 | 2001-07-24 | Scimed Life Systems, Inc. | Protective sheath for transvaginal anchor implantation devices |
US8080058B2 (en) * | 2003-04-01 | 2011-12-20 | Depuy Mitek, Inc. | Method and apparatus for fixing a graft in a bone tunnel |
WO1999011177A2 (en) * | 1997-09-05 | 1999-03-11 | Deslauriers Richard J | Self-retaining anchor track and method of making and using same |
US6096041A (en) * | 1998-01-27 | 2000-08-01 | Scimed Life Systems, Inc. | Bone anchors for bone anchor implantation device |
US6660010B2 (en) * | 1998-01-27 | 2003-12-09 | Scimed Life Systems, Inc. | Bone anchor placement device with recessed anchor mount |
DE69916045T2 (en) | 1998-05-12 | 2004-08-05 | Boston Scientific Ltd., St. Michael | HAND-OPERATED BONE ANCHOR SETTING DEVICE |
AU765559B2 (en) | 1999-04-05 | 2003-09-25 | Howmedica Osteonics Corp. | Artificial spinal ligament |
US6409768B1 (en) * | 2000-03-16 | 2002-06-25 | Slobodan Tepic | Screw anchored joint prosthesis |
US6468277B1 (en) | 2000-04-04 | 2002-10-22 | Ethicon, Inc. | Orthopedic screw and method |
US6878166B2 (en) * | 2000-08-28 | 2005-04-12 | Ron Clark | Method and implant for securing ligament replacement into the knee |
US7235079B2 (en) | 2004-11-18 | 2007-06-26 | Acumed Llc | Composite bone fasteners |
US6746451B2 (en) * | 2001-06-01 | 2004-06-08 | Lance M. Middleton | Tissue cavitation device and method |
US20050101961A1 (en) * | 2003-11-12 | 2005-05-12 | Huebner Randall J. | Bone screws |
US7896917B2 (en) * | 2003-10-15 | 2011-03-01 | Biomet Sports Medicine, Llc | Method and apparatus for graft fixation |
US20050165487A1 (en) * | 2004-01-28 | 2005-07-28 | Muhanna Nabil L. | Artificial intervertebral disc |
US8142462B2 (en) * | 2004-05-28 | 2012-03-27 | Cavitech, Llc | Instruments and methods for reducing and stabilizing bone fractures |
US8002778B1 (en) | 2004-06-28 | 2011-08-23 | Biomet Sports Medicine, Llc | Crosspin and method for inserting the same during soft ligament repair |
US8740955B2 (en) * | 2005-02-15 | 2014-06-03 | Zimmer, Inc. | Bone screw with multiple thread profiles for far cortical locking and flexible engagement to a bone |
DE202006019220U1 (en) | 2006-12-19 | 2007-05-24 | Zrinski Ag | Orthopedic screw fastening system for fixing at bone of patient, has through-holes cut on one another so that intersection line and surfaces are produced in direction of plate thickness, where line and surfaces co-operate with head windings |
US8147546B2 (en) * | 2007-03-13 | 2012-04-03 | Biomet Sports Medicine, Llc | Method and apparatus for graft fixation |
CA2692002A1 (en) * | 2007-05-21 | 2008-11-27 | Aoi Medical Inc. | Articulating cavitation device |
US9173042B2 (en) | 2007-07-20 | 2015-10-27 | Cochlear Limited | Bone anchor fixture for a medical prosthesis |
WO2010094032A2 (en) | 2009-02-16 | 2010-08-19 | Aoi Medical Inc. | Trauma nail accumulator |
EP2218415B1 (en) * | 2009-02-16 | 2011-05-04 | Stryker Trauma AG | Bone screw and production method therefor |
US8366719B2 (en) | 2009-03-18 | 2013-02-05 | Integrated Spinal Concepts, Inc. | Image-guided minimal-step placement of screw into bone |
US20110106157A1 (en) * | 2009-10-30 | 2011-05-05 | Warsaw Orthropedic, Inc. | Self-Locking Interference Bone Screw for use with Spinal Implant |
US8523914B2 (en) * | 2010-01-28 | 2013-09-03 | Warsaw Orthopedic, Inc. | Bone anchor with predetermined break point and removal features |
WO2013013218A2 (en) * | 2011-07-20 | 2013-01-24 | Horwitz Michael H | Minimal incision removable bone screw, driver, and method of use |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2082457A5 (en) * | 1970-03-17 | 1971-12-10 | Scialom Jacques | |
DE7625614U1 (en) * | 1976-08-14 | 1977-01-13 | Howmedica International, Inc. Zweigniederlassung Kiel, 2300 Kiel | Tab screw for connecting bone parts, especially in the case of femoral neck fractures |
US4463753A (en) * | 1980-01-04 | 1984-08-07 | Gustilo Ramon B | Compression bone screw |
FR2517536B1 (en) * | 1981-12-09 | 1986-12-12 | Zbikowski Juan | FUNCTIONAL FIXING DEVICE FOR OSTEO-SYNTHESIS USING COMPRESSION PLATES |
DE3241963C1 (en) * | 1982-11-12 | 1984-04-26 | Feldmühle AG, 4000 Düsseldorf | Helical jaw implant |
IL80705A0 (en) * | 1985-11-28 | 1987-02-27 | Jaquet Orthopedie | Transcutaneous pin for fixation of a bone part or fragment |
US4913134A (en) * | 1987-07-24 | 1990-04-03 | Biotechnology, Inc. | Spinal fixation system |
-
1988
- 1988-11-17 CH CH4263/88A patent/CH681957A5/de not_active IP Right Cessation
-
1989
- 1989-11-04 EP EP89120436A patent/EP0369266B1/en not_active Expired - Lifetime
- 1989-11-04 DE DE58909487T patent/DE58909487D1/en not_active Expired - Lifetime
- 1989-11-04 AT AT89120436T patent/ATE129880T1/en not_active IP Right Cessation
- 1989-11-17 JP JP1297760A patent/JPH0691888B2/en not_active Expired - Fee Related
- 1989-11-17 CA CA002003247A patent/CA2003247C/en not_active Expired - Lifetime
- 1989-11-17 US US07/437,581 patent/US5019078A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CH681957A5 (en) | 1993-06-30 |
ATE129880T1 (en) | 1995-11-15 |
EP0369266A3 (en) | 1990-10-24 |
US5019078A (en) | 1991-05-28 |
DE58909487D1 (en) | 1995-12-14 |
EP0369266A2 (en) | 1990-05-23 |
EP0369266B1 (en) | 1995-11-08 |
JPH0691888B2 (en) | 1994-11-16 |
JPH02198543A (en) | 1990-08-07 |
CA2003247C (en) | 1996-02-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |