CN104287820A - 一种具有万向锁定功能的钢板螺钉*** - Google Patents

一种具有万向锁定功能的钢板螺钉*** Download PDF

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CN104287820A
CN104287820A CN201410547976.0A CN201410547976A CN104287820A CN 104287820 A CN104287820 A CN 104287820A CN 201410547976 A CN201410547976 A CN 201410547976A CN 104287820 A CN104287820 A CN 104287820A
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screw
steel plate
universal
lock
screw head
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陶凯
尹华
蒋凯
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KANGHUI MEDICAL INNOVATION CO Ltd
Changzhou Kanghui Medical Innovation Co Ltd
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KANGHUI MEDICAL INNOVATION CO Ltd
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Priority to CN201410547976.0A priority Critical patent/CN104287820A/zh
Priority to PCT/CN2014/092025 priority patent/WO2016058243A1/zh
Publication of CN104287820A publication Critical patent/CN104287820A/zh
Priority to US15/220,363 priority patent/US20160331426A1/en
Pending legal-status Critical Current

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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
    • A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
    • A61B17/8052—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded
    • A61B17/8057—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded the interlocking form comprising a thread
    • 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
    • A61B17/683—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin comprising bone transfixation elements, e.g. bolt with a distal cooperating element such as a nut
    • 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
    • A61B17/8685—Pins or screws or threaded wires; nuts therefor comprising multiple separate parts
    • 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
    • A61B17/8605—Heads, i.e. proximal ends projecting from bone
    • 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
    • A61B2017/8655—Pins or screws or threaded wires; nuts therefor with special features for locking in the bone

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

Abstract

本发明涉及的是一种具有万向锁定功能的钢板螺钉***，是一种用于人体四肢骨折后固定复位的外科手术植入物***。一种具有万向锁定功能的钢板螺钉***，其特征在于：包括钢板和锁定螺钉，所述的钢板上设置有螺纹孔；所述的锁定螺钉包括锁紧螺钉螺纹杆部和螺钉头部，所述的螺钉头部设置有万向槽，在螺钉头部外周设置有外螺纹，与钢板上设置有螺纹孔相配合。钢板上设置的螺纹孔为锥形螺纹孔。所述的万向槽为在螺钉头部设置有若干条纵向槽。在螺钉头部外周设置的外螺纹为锥形螺纹。

Description

一种具有万向锁定功能的钢板螺钉***
技术领域
本发明涉及的是一种具有万向锁定功能的钢板螺钉***，是一种用于人体四肢骨折后固定复位的外科手术植入物***。
背景技术
人体骨骼刚形成时原本是柔软有弹性和可塑性的，随着年纪的增长，软骨的成份渐少，硬骨的组成渐渐变多，骨折开始容易发生。
临床上用于骨科内固定的锁定钢板螺钉***主要由锁定螺钉和钢板构成，在锁定钢板螺钉***中，锁定螺钉与钢板之间的角度是预先设定的。为了使得植入物的锁定螺钉具有最佳的固定效果，则要求锁定螺钉必须按特定的方向植入骨内；由于骨折破损部分的各异，以及不同个体之间的骨骼形状存在差异，因此在临床应用中，这种锁定钢板螺钉***经常存在锁定螺钉与钢板之间所设定的植入方向与最佳植入方向不一致的矛盾，影响手术效果。
发明内容
本发明目的是针对上述不足之处提供一种具有万向锁定功能的钢板螺钉***。一种具有万向锁定功能的钢板螺钉***设计合理，植入方向选择范围大，锁紧效果好等优点。术中对锁定螺钉与钢板之间的相对位置可发生变化，确保了手术时可以根据不同个体的骨折特点选择最合适的植入方向。
一种具有万向锁定功能的钢板螺钉***是采取以下技术方案实现：
一种具有万向锁定功能的钢板螺钉***包括钢板和锁定螺钉组成。所述的钢板上设置有螺纹孔；钢板上设置的螺纹孔为锥形螺纹孔。
所述的锁定螺钉包括锁紧螺钉螺纹杆部和螺钉头部。所述的螺钉头部设置有万向槽。所述的万向槽为在螺钉头部设置有若干条纵向槽。在螺钉头部外周设置有外螺纹，与钢板上设置有螺纹孔相配合。
在螺钉头部外周设置的外螺纹为锥形螺纹。
工作原理
一种具有万向锁定功能的钢板螺钉***用于手术时，根据不同个体的骨折特点，选择最佳植入方向，在骨折处上装上带有螺纹孔的钢板，利用万向钻头导向器及钻头在骨上打好最适合植入方向的预钻孔，通过起子将带有万向槽的锁紧螺钉，利用错开螺纹的原理，将锁定螺钉在可变角度内固定在钢板螺纹孔内。此时螺钉进入骨折位置的方向为手术最佳方向。
一种具有万向锁定功能的钢板螺钉***优点：
一种具有万向锁定功能的钢板螺钉***设计合理，结构简单，由于螺钉头部设置有万向槽，能很好的解决了临床中锁定钢板螺钉***存在的锁定螺钉与钢板之间所设定的植入方向与最佳植入方向不一致的矛盾，确定了手术时可以根据不同个体的骨折特点选择最合适的植入方向。
附图说明
以下将结合附图对本发明作进一步说明：
图1是一种具有万向锁定功能的钢板螺钉***中锁定螺钉示意图。
图2是一种具有万向锁定功能的钢板螺钉***及其安装在骨折处示意图。
图中标记列示如下：
1、锁紧螺钉螺纹杆部，2、螺钉头部，3、万向槽，4、钢板， 5、螺纹孔，6、螺钉起子，7、骨，8、外螺纹。
具体实施方式
参照附图1、2，一种具有万向锁定功能的钢板螺钉***包括钢板4和锁定螺钉组成。所述的钢板4上设置有螺纹孔5；钢板4上设置的螺纹孔5为锥形螺纹孔。
所述的锁定螺钉包括锁紧螺钉螺纹杆部1和螺钉头部2。所述的螺钉头部2设置有万向槽3。所述的万向槽3为在螺钉头部设置有若干条纵向槽。在螺钉头部2外周设置有外螺纹8，与钢板4上设置有螺纹孔相配合。
在螺钉头部2外周设置的外螺纹为锥形螺纹。
一种具有万向锁定功能的钢板螺钉***用于手术时，选择最佳植入方向，在骨折处上装上带有钢板螺纹孔5的钢板4，利用钻头在骨7上最佳植入方向上打好预钻孔，通过螺钉起子6将锁紧螺钉螺纹杆部1穿过钢板螺纹孔5拧入骨7内，继续拧动螺钉起子6，利用带有万向槽的螺钉头部2的万向槽3错开钢板螺纹孔5的螺纹，将带有万向槽的螺钉头部2与钢板螺纹孔5成角度拧紧，实现锁紧螺钉最佳植入方向。

Claims (4)

1.一种具有万向锁定功能的钢板螺钉***，其特征在于：包括钢板和锁定螺钉，所述的钢板上设置有螺纹孔； 
所述的锁定螺钉包括锁紧螺钉螺纹杆部和螺钉头部，所述的螺钉头部设置有万向槽，在螺钉头部外周设置有外螺纹，与钢板上设置有螺纹孔相配合。
2.根据权利要求1所述的一种具有万向锁定功能的钢板螺钉***，其特征在于：钢板上设置的螺纹孔为锥形螺纹孔。
3.根据权利要求1所述的一种具有万向锁定功能的钢板螺钉***，其特征在于：所述的万向槽为在螺钉头部设置有若干条纵向槽。
4.根据权利要求1所述的一种具有万向锁定功能的钢板螺钉***，其特征在于：在螺钉头部外周设置的外螺纹为锥形螺纹。
CN201410547976.0A 2014-10-16 2014-10-16 一种具有万向锁定功能的钢板螺钉*** Pending CN104287820A (zh)

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Application Number Priority Date Filing Date Title
CN201410547976.0A CN104287820A (zh) 2014-10-16 2014-10-16 一种具有万向锁定功能的钢板螺钉***
PCT/CN2014/092025 WO2016058243A1 (zh) 2014-10-16 2014-11-24 一种具有万向锁定功能的钢板螺钉***
US15/220,363 US20160331426A1 (en) 2014-10-16 2016-07-26 Universal locking device for stabilizing and fixing bones

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CN201410547976.0A CN104287820A (zh) 2014-10-16 2014-10-16 一种具有万向锁定功能的钢板螺钉***

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CN109688952A (zh) * 2016-09-08 2019-04-26 德普伊新特斯产品公司 可变角度的骨板
CN112155701A (zh) * 2020-10-10 2021-01-01 江山市人民医院 一种跟骨用可调节螺钉
CN112957115A (zh) * 2021-02-03 2021-06-15 山东大学齐鲁医院(青岛) 万向膨胀锁定螺钉钢板***
US11259851B2 (en) 2003-08-26 2022-03-01 DePuy Synthes Products, Inc. Bone plate
US11291484B2 (en) 2004-01-26 2022-04-05 DePuy Synthes Products, Inc. Highly-versatile variable-angle bone plate system
US11529176B2 (en) 2016-09-08 2022-12-20 DePuy Synthes Products, Inc. Variable angle bone plate

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US20140128928A1 (en) * 2010-03-03 2014-05-08 Mark Weiman Low Profile Fastening Assembly
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US20140005728A1 (en) * 2012-06-27 2014-01-02 Kenny Chi Beng Koay Variable angle bone fixation device
CN204169919U (zh) * 2014-10-16 2015-02-25 常州市康辉医疗器械有限公司 一种具有万向锁定功能的钢板螺钉***

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11259851B2 (en) 2003-08-26 2022-03-01 DePuy Synthes Products, Inc. Bone plate
US11291484B2 (en) 2004-01-26 2022-04-05 DePuy Synthes Products, Inc. Highly-versatile variable-angle bone plate system
CN109688952A (zh) * 2016-09-08 2019-04-26 德普伊新特斯产品公司 可变角度的骨板
CN109688952B (zh) * 2016-09-08 2021-08-03 德普伊新特斯产品公司 可变角度的骨板
US11529176B2 (en) 2016-09-08 2022-12-20 DePuy Synthes Products, Inc. Variable angle bone plate
CN112155701A (zh) * 2020-10-10 2021-01-01 江山市人民医院 一种跟骨用可调节螺钉
CN112957115A (zh) * 2021-02-03 2021-06-15 山东大学齐鲁医院(青岛) 万向膨胀锁定螺钉钢板***

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Application publication date: 20150121