CN108420518A - 一种髁上髓内钉 - Google Patents

一种髁上髓内钉 Download PDF

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Publication number
CN108420518A
CN108420518A CN201810246130.1A CN201810246130A CN108420518A CN 108420518 A CN108420518 A CN 108420518A CN 201810246130 A CN201810246130 A CN 201810246130A CN 108420518 A CN108420518 A CN 108420518A
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CN
China
Prior art keywords
nail
condyle
main nail
main
proximal end
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.)
Pending
Application number
CN201810246130.1A
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English (en)
Inventor
孙德修
孙硕
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Hangwei Orthopedics Medical Instrument Co Ltd
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Shandong Hangwei Orthopedics Medical Instrument Co Ltd
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.)
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Application filed by Shandong Hangwei Orthopedics Medical Instrument Co Ltd filed Critical Shandong Hangwei Orthopedics Medical Instrument Co Ltd
Priority to CN201810246130.1A priority Critical patent/CN108420518A/zh
Publication of CN108420518A publication Critical patent/CN108420518A/zh
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
    • A61B17/72—Intramedullary pins, nails or other devices
    • A61B17/7233—Intramedullary pins, nails or other devices with special means of locking the nail to the bone
    • A61B17/725—Intramedullary pins, nails or other devices with special means of locking the nail to the bone with locking pins or screws of special form
    • 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
    • A61B17/72—Intramedullary pins, nails or other devices
    • A61B17/7233—Intramedullary pins, nails or other devices with special means of locking the nail to the bone
    • A61B17/7241—Intramedullary pins, nails or other devices with special means of locking the nail to the bone the nail having separate elements through which screws pass
    • 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
    • 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
    • A61B2017/564—Methods for bone or joint treatment

Landscapes

  • 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

本发明提供了一种髁上髓内钉，自股骨髁部插入股骨髓腔，用以治疗股骨骨折。其主要包括主钉和锁钉，所述主钉设为棒形，其长度方向自股骨髁至股骨干沿髓腔设置，所述主钉设有锁钉孔，其特征在于所述主钉设有股骨髁部至股骨髓腔弯曲的第一弧形或角，所述主钉近端设有沿着股骨近端髓腔弯曲的第二弧形，所述主钉近端设有弹性，手术时首先在股骨髁部打孔，然后所述主钉由股骨髁部插入髓腔，当主钉近端碰到髓腔壁时会通过弹性弯曲，而使主钉顺利插入髓腔后自动弹回。

Description

一种髁上髓内钉
技术领域
本发明提供了一种医疗器械，尤其是一种髁上髓内钉。
背景技术
临床上使用髁上髓内钉治疗股骨骨折，目前在我国已经是常用的医疗方法，该方法是将患者的膝关节切开，将髁上髓内钉由膝关节处打孔插入股骨髓腔，从而将骨折两断端连接固定。该方法由于需要切开膝关节，对患者存在较大的手术伤害。
发明内容
本发明提供了一种髁上髓内钉，克服了上述缺陷。主要包括主钉和锁钉，所述主钉设为棒形，其长度方向自股骨髁至股骨干沿髓腔设置，所述主钉设有锁钉孔，其特征在于所述主钉设有股骨髁部至股骨髓腔弯曲的第一弧形或角，
优选的所述主钉近端设有沿着股骨近端髓腔弯曲的第二弧形，以符合髓腔形状，便于骨折复位。
优选的所述主钉近端设为直形，适合较短的主钉，可降低制造成本。
优选的所述主钉近端设有弹性，手术时首先在股骨髁部打孔，然后所述主钉由股骨髁部插入髓腔，当主钉近端碰到髓腔壁时会通过弹性弯曲，而使主钉顺利插入髓腔后自动弹回。
优选的所述主钉的横截面可设为多边形，可方便适应不同的骨骼髓腔的插入，及弹性弯曲。
优选的所述主钉的横截面设为四边形型，其制造简单，价格便宜。
优选的所述主钉设为实心钉或空心钉，采用空心钉可方便导向与测量。
优选的所述主钉设有磁铁，以方便体外探测与导向。
本发明一种髁上髓内钉，自股骨髁部插入股骨髓腔，操作方便，固定牢固，主要是避免了切开关节的手术方法对患者的损伤，大大减轻了患者的痛苦和手术的难度。
附图说明
图1是本发明一种髁上髓内钉的结构示意图。
图2是图1的俯视图。
具体实施方式
下面结合附图给出的实施例进一步说明本发明。
图1-图2为本发明提供了一种髁上髓内钉，包括主钉1和锁钉2，所述主钉1设为棒形，其长度方向自股骨髁部至股骨干沿髓腔设置，所述主钉1设有锁钉孔，所述主钉1设有股骨髁部至股骨髓腔弯曲的第一弧形11或角，所述主钉近端设有沿着股骨近端髓腔弯曲的第二弧形12，所述主钉1设有内孔13，所述主钉1设有磁铁3，所述主钉1近端设有弹性，所述锁钉2数枚，分别设于骨折两断端，所述锁钉2穿过骨骼与所述锁钉孔配合，将骨折两断端骨骼与主钉1固定，达到固定治疗骨折的目的。

Claims (8)

1.一种髁上髓内钉，包括主钉(1)和锁钉(2)，所述主钉(1)设为棒形，其长度方向自股骨髁至股骨干沿髓腔设置，所述主钉设有锁钉孔，其特征在于所述主钉(1)设有股骨髁部至股骨髓腔弯曲的第一弧形或角(11)。
2.根据权利要求1所述的一种髁上髓内钉，其特征在于所述主钉(1)近端设有沿着股骨近端髓腔弯曲的第二弧形。
3.根据权利要求1所述的一种髁上髓内钉，其特征在于所述主钉(1)近端设为直形。
4.根据权利要求1所述的一种髁上髓内钉，其特征在于所述主钉(1)近端设有弹性。
5.根据权利要求1所述的一种髁上髓内钉，其特征在于所述主钉(1)的横截面设为多边形。
6.根据权利要求1所述的一种髁上髓内钉，其特征在于所述主钉(1)的横截面设为四边形型。
7.根据权利要求1所述的一种髁上髓内钉，其特征在于所述主钉(1)设为实心钉或空心钉。
8.根据权利要求1所述的一种髁上髓内钉，其特征在于所述主钉(1)设有磁铁。
CN201810246130.1A 2018-03-23 2018-03-23 一种髁上髓内钉 Pending CN108420518A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111759439A (zh) * 2020-07-23 2020-10-13 宁德市闽东医院 一种股骨内髁逆行锁定髓内针

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2369640Y (zh) * 1999-01-18 2000-03-22 许纬洲 自动加压带锁髓内钉
CN2522040Y (zh) * 2001-12-31 2002-11-27 徐栋梁 可吸收交锁髓内钉
CN202179588U (zh) * 2011-05-17 2012-04-04 北京纳通科技集团有限公司 胫骨髓内钉
CN202235658U (zh) * 2011-09-17 2012-05-30 王京生 锁骨弹性髓内钉
CN104207835A (zh) * 2013-05-31 2014-12-17 钱普健 髓内钉及其髓内钉锁孔定位装置
CN205234610U (zh) * 2015-11-05 2016-05-18 苏州吉美瑞医疗器械有限公司 一种加长型pfna髓内钉

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2369640Y (zh) * 1999-01-18 2000-03-22 许纬洲 自动加压带锁髓内钉
CN2522040Y (zh) * 2001-12-31 2002-11-27 徐栋梁 可吸收交锁髓内钉
CN202179588U (zh) * 2011-05-17 2012-04-04 北京纳通科技集团有限公司 胫骨髓内钉
CN202235658U (zh) * 2011-09-17 2012-05-30 王京生 锁骨弹性髓内钉
CN104207835A (zh) * 2013-05-31 2014-12-17 钱普健 髓内钉及其髓内钉锁孔定位装置
CN205234610U (zh) * 2015-11-05 2016-05-18 苏州吉美瑞医疗器械有限公司 一种加长型pfna髓内钉

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111759439A (zh) * 2020-07-23 2020-10-13 宁德市闽东医院 一种股骨内髁逆行锁定髓内针

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