WO2021218276A1 - Broche osseuse à auto-taraudage - Google Patents

Broche osseuse à auto-taraudage Download PDF

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Publication number
WO2021218276A1
WO2021218276A1 PCT/CN2021/075438 CN2021075438W WO2021218276A1 WO 2021218276 A1 WO2021218276 A1 WO 2021218276A1 CN 2021075438 W CN2021075438 W CN 2021075438W WO 2021218276 A1 WO2021218276 A1 WO 2021218276A1
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WO
WIPO (PCT)
Prior art keywords
needle
self
cutting
bone
main cutting
Prior art date
Application number
PCT/CN2021/075438
Other languages
English (en)
Chinese (zh)
Inventor
杨华清
唐佩福
章耀华
李强
黄晓宇
彭爱民
郑学建
夏雨
金圣爱
吴鸿鹰
唐金树
Original Assignee
北京骨外固定技术研究所
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 北京骨外固定技术研究所 filed Critical 北京骨外固定技术研究所
Publication of WO2021218276A1 publication Critical patent/WO2021218276A1/fr

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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
    • A61B17/84—Fasteners therefor or fasteners being internal fixation devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/1655—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for tapping

Definitions

  • the invention relates to the field of medical equipment. Specifically, it is a self-tapping bone spicule.
  • Bone pin is an indispensable medical device in orthopedic surgery. It is used for temporary or long-term fixation of the fracture site. Traditional Kirschner wires, semi-threaded pins and screws need to be drilled in the bone first, and then the bone The needle penetrates the bone. This leads to more procedures and lower efficiency, which makes the operation time longer.
  • the technical problem solved by the present invention is to overcome the shortcomings of low surgical efficiency caused by the existing bone needles, and to provide a self-tapping bone needle that can reduce surgical steps.
  • the self-tapping bone needle of the present invention includes a needle body portion and a needle tip portion.
  • the needle tip portion is provided with a first needle tip cross-sectional structure and a second needle tip cross-sectional structure.
  • the main cutting plane extending in the axial direction of the bone needle, the second needle tip cross-sectional structure includes a secondary cutting surface extending at an acute angle from the tip of the needle tip portion to intersect the main cutting plane, and the main cutting plane intersects the secondary cutting surface
  • the needle body portion is provided with a needle body section, the needle body section extends from the end of the main cutting plane, and the formation between the needle body section and the main cutting plane is greater than or equal to 90 ° of the angle ⁇ .
  • the included angle ⁇ between the needle section and the main cutting plane is 90°-135°.
  • the included angle ⁇ between the needle section and the main cutting plane is 135°.
  • the secondary cutting surface is a flat surface, and the included angle with the axis of the bone spicule is 25°-75°.
  • the needle tip portion is provided with a main cutting plane and a plurality of secondary cutting surfaces, and two secondary cutting surfaces of the plurality of secondary cutting surfaces intersect with the main cutting plane respectively to form a cutting edge.
  • the needle tip portion is provided with a main cutting plane and two secondary cutting surfaces, and the two secondary cutting surfaces intersect with the main cutting plane to form two cutting edges.
  • the included angle ⁇ between the two cutting edges is 60°-145°.
  • the two secondary cutting surfaces intersect and are symmetrical with respect to the symmetry plane passing through the intersection line of the intersection of the two secondary cutting surfaces and the axis of the bone pin.
  • the angle ⁇ between the intersection line of the two secondary cutting surfaces and the cutting edge is 25°-85°.
  • the needle body part is provided with a thread at a position close to the needle tip part.
  • the thread extends to the tip of the needle, and the thread avoids the main cutting plane, the secondary cutting surface and the cross section of the needle body.
  • the self-tapping bone needle of the present invention has the following beneficial effects:
  • the main cutting plane and the secondary cutting surface of the self-tapping bone needle of the present invention intersect to form a cutting edge for cutting bones.
  • Fig. 1 is a schematic front view of a self-tapping bone needle according to an embodiment of the present invention.
  • Fig. 2 is a schematic top view of a self-tapping bone needle according to an embodiment of the present invention.
  • Fig. 3 is a schematic left view of a self-tapping bone needle according to an embodiment of the present invention.
  • Fig. 4 is a schematic front view of a self-tapping bone needle according to another embodiment of the present invention.
  • Fig. 1 is a schematic front view of a self-tapping bone needle according to an embodiment of the present invention
  • Fig. 2 is a schematic top view of a self-tapping bone needle according to an embodiment of the present invention.
  • a self-tapping bone needle provided by the present invention includes a needle body and a needle tip.
  • the bone needle is provided with a first needle tip cross-sectional structure and a second needle tip extending from the tip of the needle tip.
  • the cross-sectional structure of the first needle tip includes a main cutting plane 1 extending from the tip of the needle tip along the axis of the bone needle.
  • the planes intersect to form a secondary cutting surface extending at an acute angle.
  • the secondary cutting surface is a flat surface.
  • the secondary cutting surface may also be an arc-shaped surface.
  • the size of the main cutting plane is larger than the size of the secondary cutting surface.
  • the main cutting plane 1 and the secondary cutting surface 2 intersect to form a cutting edge for cutting bones, and the needle body of the bone needle
  • the section is provided with a needle section 3 which extends from the end of the main cutting plane 1 and forms an included angle ⁇ greater than or equal to 90° between the needle section 3 and the main cutting plane 1.
  • the needle section 3 is a plane.
  • the main cutting plane 1 and the secondary cutting surface 2 of the self-tapping bone needle of the present invention intersect to form a cutting edge for cutting the bone.
  • the self-tapping bone needle itself Drilling, the self-tapping bone needle drilled into the bone stays in the bone to play a fixed role, thereby eliminating the step of drilling the eye with the drill bit and saving the procedure and time of the operation.
  • an included angle ⁇ greater than 90° is formed between the needle section 3 and the main cutting plane 1, which can make the bone debris generated by cutting flow out along the inclined plane of the included angle, and then can be easily taken out.
  • the angle ⁇ between the needle section 3 and the main cutting plane 1 is 90-135°.
  • the angle ⁇ between the needle section 3 and the main cutting plane 1 is 135°.
  • the size of the main cutting plane 1 is greater than or equal to the length of the needle tip.
  • the length of the main cutting plane 1 is slightly larger than the length of the needle tip. .
  • the included angle between the secondary cutting surface 2 and the axis of the spicule (not shown in the figure) is 25°-75°.
  • the needle tip portion is provided with a main cutting plane and a plurality of secondary cutting surfaces, and two secondary cutting surfaces of the multiple secondary cutting surfaces intersect with the main cutting plane to form a cutting edge, and the clamping between the two cutting edges
  • the angle ⁇ is 60°-145°
  • the angle ⁇ between the intersection line of the two secondary cutting surfaces and the cutting edge is 25°-85°.
  • the needle tip portion is provided with one main cutting plane 1 and two secondary cutting surfaces 2.
  • the two secondary cutting surfaces 2 have the same shape and the same area.
  • One secondary cutting surface 2 intersects with the main cutting plane 1 to form a first cutting edge, and the other secondary cutting surface 2 intersects with the main cutting plane 1 to form a second cutting edge.
  • the two cutting edges can cut in different directions of rotation. .
  • Figure 4 shows a second embodiment of the present invention.
  • the needle body is provided with a thread 4 near the tip of the needle.
  • the thread 4 extends to the tip of the needle.
  • the thread 4 can make a bone needle It is more firmly fixed inside the bones.
  • the thread 4 avoids the main cutting plane 1, the secondary cutting surface 2 and the needle section 3.
  • the other technical features in this embodiment are the same as the embodiment shown in FIGS. 1-3.
  • the needle tip portion is provided with a main cutting plane and three or four or five secondary cutting surfaces, and the number of secondary cutting surfaces can be determined according to actual needs.

Landscapes

  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Biomedical Technology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Neurology (AREA)
  • Surgical Instruments (AREA)

Abstract

Est divulguée une broche osseuse à auto-taraudage, comprenant une partie de corps de broche et une partie de pointe de broche, la partie de pointe de broche étant pourvue d'une première structure de section de pointe de broche et d'une seconde structure de section de pointe de broche ; la première structure de section de pointe de broche comprenant une face principale plate de coupe qui s'étend depuis la pointe de la partie de pointe de broche dans le sens axial de la broche osseuse ; la seconde structure de section de pointe de broche comprenant une face de coupe auxiliaire qui s'étend depuis la pointe de la partie de pointe de broche et qui entre en intersection avec la face principale plate de coupe pour former un angle aigu ; la face principale plate de coupe entre en intersection avec la face de coupe auxiliaire pour former un bord coupant pour couper un os ; et la partie de corps de broche est pourvue d'une section de corps de broche qui s'étend depuis l'extrémité de la face principale plate de coupe et qui forme un angle compris supérieur à 90 degrés avec la face principale plate de coupe. Le problème technique à résoudre par la présente invention sert à surmonter les inconvénients de l'efficacité faible de fonctionnement des broches osseuses existantes, et à fournir une broche osseuse à auto-taraudage capable de réduire les étapes de chirurgie.
PCT/CN2021/075438 2020-04-28 2021-02-05 Broche osseuse à auto-taraudage WO2021218276A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010347369.5A CN111493992B (zh) 2020-04-28 2020-04-28 一种自攻骨针
CN202010347369.5 2020-04-28

Publications (1)

Publication Number Publication Date
WO2021218276A1 true WO2021218276A1 (fr) 2021-11-04

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ID=71849383

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PCT/CN2021/075438 WO2021218276A1 (fr) 2020-04-28 2021-02-05 Broche osseuse à auto-taraudage

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CN (1) CN111493992B (fr)
WO (1) WO2021218276A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111493992B (zh) * 2020-04-28 2022-03-08 北京骨外固定技术研究所 一种自攻骨针
JP7398850B1 (ja) 2023-06-09 2023-12-15 株式会社メドメタレックス 骨抜去器

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994012107A1 (fr) * 1992-11-28 1994-06-09 Thomas Schewior Fil coupant autoforeur pour le perçage transosseux, la fixation et le cas echeant la consolidation d'os ou de fragments osseux
US5925048A (en) * 1998-03-13 1999-07-20 Osteomed Bone screw
US6565573B1 (en) * 2001-04-16 2003-05-20 Smith & Nephew, Inc. Orthopedic screw and method of use
CN103501734A (zh) * 2011-03-10 2014-01-08 新特斯有限责任公司 锥形螺钉固定构件和相关系统
CN208435757U (zh) * 2017-12-12 2019-01-29 上海伍健医疗器械有限公司 一种反切自攻骨钉
CN109567915A (zh) * 2018-12-28 2019-04-05 浙江康慈医疗科技有限公司 一种带有钻头功能的金属骨针
CN111493992A (zh) * 2020-04-28 2020-08-07 北京骨外固定技术研究所 一种自攻骨针

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201831939U (zh) * 2010-11-03 2011-05-18 北京骨外固定技术研究所 组合式多功能截骨器
CN203362767U (zh) * 2013-06-13 2013-12-25 张家铭 攻牙螺丝
CN204274627U (zh) * 2014-11-28 2015-04-22 江苏安格尔医疗器械有限公司 一种自攻自钻型锁定螺钉
CN208910437U (zh) * 2017-11-08 2019-05-31 天津正天医疗器械有限公司 一种自攻型松质骨螺钉

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994012107A1 (fr) * 1992-11-28 1994-06-09 Thomas Schewior Fil coupant autoforeur pour le perçage transosseux, la fixation et le cas echeant la consolidation d'os ou de fragments osseux
US5925048A (en) * 1998-03-13 1999-07-20 Osteomed Bone screw
US6565573B1 (en) * 2001-04-16 2003-05-20 Smith & Nephew, Inc. Orthopedic screw and method of use
CN103501734A (zh) * 2011-03-10 2014-01-08 新特斯有限责任公司 锥形螺钉固定构件和相关系统
CN208435757U (zh) * 2017-12-12 2019-01-29 上海伍健医疗器械有限公司 一种反切自攻骨钉
CN109567915A (zh) * 2018-12-28 2019-04-05 浙江康慈医疗科技有限公司 一种带有钻头功能的金属骨针
CN111493992A (zh) * 2020-04-28 2020-08-07 北京骨外固定技术研究所 一种自攻骨针

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Publication number Publication date
CN111493992B (zh) 2022-03-08
CN111493992A (zh) 2020-08-07

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