JP4374050B2 - 髄内釘及びそれに用いられる制御部材 - Google Patents
髄内釘及びそれに用いられる制御部材 Download PDFInfo
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- JP4374050B2 JP4374050B2 JP2007338714A JP2007338714A JP4374050B2 JP 4374050 B2 JP4374050 B2 JP 4374050B2 JP 2007338714 A JP2007338714 A JP 2007338714A JP 2007338714 A JP2007338714 A JP 2007338714A JP 4374050 B2 JP4374050 B2 JP 4374050B2
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- JP
- Japan
- Prior art keywords
- main body
- control member
- hole
- contact
- intramedullary nail
- 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.)
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Classifications
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- 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
- A61B17/74—Devices for the head or neck or trochanter of the femur
- A61B17/742—Devices for the head or neck or trochanter of the femur having one or more longitudinal elements oriented along or parallel to the axis of the neck
- A61B17/744—Devices for the head or neck or trochanter of the femur having one or more longitudinal elements oriented along or parallel to the axis of the neck the longitudinal elements coupled to an intramedullary nail
Description
11 張出部
25 窪み部
15 髄内釘本体
21 孔
29 主ラグスクリュー
33 副ラグスクリュー
Claims (3)
- 延びた骨の一端部から髄内に導入されてその軸心に対して交差する複数の貫通孔を有する棒状の本体と、それぞれが前記本体の対応する各貫通孔に挿通されて前記骨に係合可能な複数の係合部材とを備えた髄内釘において、
前記本体の一方端から前記各貫通孔に繋がる孔が形成されており、
制御機構を備え、
前記制御機構は、
前記孔から挿入されて本体内部に収納される部材であって、その一端部が前記複数の係合部材の一つに接触可能であるとともに他の係合部材が挿通できる形状をしており、前記複数の係合部材のそれぞれの前記本体との関係における固定度を同時に制御することが可能な制御部材と、
前記制御部材に接触して押し込まれることにより前記制御部材が制御する固定度を調整する調整部材とを含み、
前記制御部材は、収納時において、その外側面に、前記軸心に対して前記孔の開口に向かって断面の前記軸心からの距離が大きくなる部分を有し、
前記本体は、前記調整部材が使用される前の状態において、前記制御部材の部分の形状に沿う内壁面の部分を有し、
前記調整部材が使用されることにより前記制御部材の外側面の部分と前記本体の内壁面の部分との間に接触抗力が生じ、当該接触抗力により前記制御部材の内壁面から生じる圧力を前記挿通している他の係合部材に与えて固定度が調整されることを特徴とする、髄内釘。 - 前記他の係合部材の形状に関し、前記制御部材の内壁面に面接触又は複数箇所による接触によって回転が防止される形状であることを特徴とする、請求項1記載の髄内釘。
- 延びた骨の一端部から髄内に導入されてその軸心に対して交差する複数の貫通孔を有する棒状の本体と、それぞれが前記本体の対応する各貫通孔に挿通されて前記骨に係合可能な複数の係合部材とを備えた髄内釘に用いられる制御部材であって、
前記本体は、一方端から前記各貫通孔に繋がる孔が形成されており、
前記孔から挿入されて本体内部に収納され、その一端部が前記複数の係合部材の一つに接触可能であるとともに他の係合部材が挿通できる形状をしており、
前記複数の係合部材のそれぞれの前記本体との関係における固定度を同時に制御することが可能であり、
前記髄内釘が備える制御機構に前記固定度を調整する調整部材とともに含まれ、
収納時において、その外側面に、前記軸心に対して前記孔の開口に向かって断面の前記軸心からの距離が大きくなる部分を有し、
前記本体は、前記調整部材が使用される前の状態において、前記軸心からの距離が大きくなる外側面の部分の形状に沿う内壁面の部分を有し、
前記調整部材が使用されることにより前記調整部材が接触して押しこまれて前記軸心からの距離が大きくなる外側面の部分と前記本体の内壁面の部分との間に接触抗力が生じ、当該接触抗力により前記制御部材の内壁面から生じる圧力を前記挿通している他の係合部材に与えて固定度が調整されることを特徴とする、制御部材。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007338714A JP4374050B2 (ja) | 2007-12-28 | 2007-12-28 | 髄内釘及びそれに用いられる制御部材 |
PCT/JP2008/073450 WO2009084542A1 (ja) | 2007-12-28 | 2008-12-24 | 髄内釘及びそれに用いられる制御部材 |
EP08868517.7A EP2253285A4 (en) | 2007-12-28 | 2008-12-24 | MEDULINAL NAIL, AND CONTROL MEMBER USED IN THE NAIL |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007338714A JP4374050B2 (ja) | 2007-12-28 | 2007-12-28 | 髄内釘及びそれに用いられる制御部材 |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2009153939A JP2009153939A (ja) | 2009-07-16 |
JP2009153939A5 JP2009153939A5 (ja) | 2009-09-10 |
JP4374050B2 true JP4374050B2 (ja) | 2009-12-02 |
Family
ID=40824256
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007338714A Active JP4374050B2 (ja) | 2007-12-28 | 2007-12-28 | 髄内釘及びそれに用いられる制御部材 |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2253285A4 (ja) |
JP (1) | JP4374050B2 (ja) |
WO (1) | WO2009084542A1 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6058958B2 (ja) * | 2012-09-24 | 2017-01-11 | 株式会社ホムズ技研 | 髄内固定システム |
WO2015052841A1 (ja) * | 2013-10-11 | 2015-04-16 | プロスパー株式会社 | 骨接合具および骨接合術 |
WO2016190842A1 (en) * | 2015-05-22 | 2016-12-01 | Stryker European Holdings I, Llc | Implant system for bone fixation |
JP6434477B2 (ja) * | 2016-12-08 | 2018-12-05 | 株式会社ホムズ技研 | 髄内固定システム |
JP7052980B2 (ja) * | 2017-06-16 | 2022-04-12 | 株式会社ホムズ技研 | 骨固定装置 |
US11857228B2 (en) | 2020-03-06 | 2024-01-02 | Stryker European Operations Limited | Set screw for femoral nail |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5176681A (en) | 1987-12-14 | 1993-01-05 | Howmedica International Inc. | Intramedullary intertrochanteric fracture fixation appliance and fitting device |
JPH11318931A (ja) * | 1998-05-20 | 1999-11-24 | Ikufumi Yamada | 遠位横止め抜釘の容易な髄内釘 |
JP2000342596A (ja) | 1999-06-07 | 2000-12-12 | Homuzu Giken:Kk | 髄内釘 |
US6221074B1 (en) * | 1999-06-10 | 2001-04-24 | Orthodyne, Inc. | Femoral intramedullary rod system |
JP4278289B2 (ja) * | 2000-07-27 | 2009-06-10 | 有限会社ケイオーアイ | 髄内釘 |
US8092454B2 (en) * | 2004-03-11 | 2012-01-10 | Sohngen Gary W | Fixation instrument for treating a bone fracture |
JP2005278819A (ja) * | 2004-03-29 | 2005-10-13 | Homuzu Giken:Kk | 髄内釘 |
JP2005279140A (ja) | 2004-03-31 | 2005-10-13 | Homuzu Giken:Kk | 髄内釘 |
-
2007
- 2007-12-28 JP JP2007338714A patent/JP4374050B2/ja active Active
-
2008
- 2008-12-24 WO PCT/JP2008/073450 patent/WO2009084542A1/ja active Application Filing
- 2008-12-24 EP EP08868517.7A patent/EP2253285A4/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
JP2009153939A (ja) | 2009-07-16 |
WO2009084542A1 (ja) | 2009-07-09 |
EP2253285A1 (en) | 2010-11-24 |
EP2253285A4 (en) | 2013-10-02 |
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