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WO2021256650A1 - Support de fixation de clou intramédullaire ayant une fonction de prévention de la rotation et de la séparation d'un os fracturé - Google Patents

Support de fixation de clou intramédullaire ayant une fonction de prévention de la rotation et de la séparation d'un os fracturé Download PDF

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Publication number
WO2021256650A1
WO2021256650A1 PCT/KR2021/000730 KR2021000730W WO2021256650A1 WO 2021256650 A1 WO2021256650 A1 WO 2021256650A1 KR 2021000730 W KR2021000730 W KR 2021000730W WO 2021256650 A1 WO2021256650 A1 WO 2021256650A1
Authority
WO
WIPO (PCT)
Prior art keywords
fixing
support
metal
fixing support
fractured
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.)
Ceased
Application number
PCT/KR2021/000730
Other languages
English (en)
Korean (ko)
Inventor
서장현
김치훈
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.)
Jeil Medical Corp
Original Assignee
Jeil Medical Corp
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 Jeil Medical Corp filed Critical Jeil Medical Corp
Publication of WO2021256650A1 publication Critical patent/WO2021256650A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • 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 or setting implements
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/72—Intramedullary devices, e.g. pins or nails
    • A61B17/7233—Intramedullary devices, e.g. pins or nails with special means of locking the nail to the bone
    • A61B17/7241—Intramedullary devices, e.g. pins or nails 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • 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 or setting implements
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/72—Intramedullary devices, e.g. pins or nails
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • 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 or setting implements
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/72—Intramedullary devices, e.g. pins or nails
    • A61B17/7233—Intramedullary devices, e.g. pins or nails with special means of locking the nail to the bone
    • A61B17/725—Intramedullary devices, e.g. pins or nails 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
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
    • A61L31/02—Inorganic materials
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
    • A61L31/02—Inorganic materials
    • A61L31/022—Metals or alloys
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L31/00—Materials for other surgical articles, e.g. stents, stent-grafts, shunts, surgical drapes, guide wires, materials for adhesion prevention, occluding devices, surgical gloves, tissue fixation devices
    • A61L31/14—Materials characterised by their function or physical properties, e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods
    • A61B2017/00831—Material properties
    • A61B2017/00867—Material properties shape memory effect

Definitions

  • the present invention relates to a support for fixing a metal nail in the bone marrow cavity having a function of preventing rotation and separation of a fractured bone, and more particularly, by inserting a fixing support made of a shape memory alloy into a metal nail at room temperature at a user's desired position. When heat is applied to the fixing support after positioning, the fixing support contracts and a metal nail with strong fixing force is inserted into the intramedullary cavity to fix the fractured bone. It relates to a support for fixing a metal nail in the intramedullary cavity.
  • the metal nail (3) used in this case can be applied only to simple fractures of the long bones. There is a problem that the range of treatment that can be done is narrow.
  • Figure 3 uses a fracture plate 4 and a screw 5 made of a metal plate, and as shown in the figure, a plurality of screws 5 are inserted into the bone to cross both sides of the fractured bones 1a and 1b.
  • a method of binding the out-of-print plate (4) it is the most widely used and has a wide range of therapeutic applications.
  • the method using the fracture plate 4 and the screw 5 has a problem in that, after the fracture treatment is finished, osteoporosis in which small holes are formed in the bone near the junction 6 of the fracture occurs.
  • One of the main causes of such osteoporosis is the excessive rigidity of the fracture plate 4 made of metal.
  • the present invention was devised to solve the problems of the prior art as described above, and is installed on a metal chisel for fixing the fractured part to ensure the fixation and strength of the fractured part, and to prevent the rotation of the bone.
  • a support for fixing a metal chisel in the bone marrow cavity with a function of preventing bone rotation and separation was proposed.
  • the present invention for achieving the above technical problem is in the treatment by inserting a metal nail into the inside of a fractured bone
  • the fixing support 100 is inserted and fixed at the desired position of the metal chisel 3, and the fixing support 100 is It is a shape memory alloy.
  • the fixing support 100 is It is a shape memory alloy.
  • a plurality of straight or spiral protrusions and grooves are formed at equal intervals on the outside.
  • the support for fixing a metal chisel in the bone marrow cavity having a function to prevent rotation and separation of a fractured bone of the present invention having the configuration as described above allows a user to fix the ring at a desired position, so the ring is positioned to suit various fracture locations to provide fractures can be fixed.
  • the fixing support made of the shape memory alloy of the present invention it is possible to reduce the operation time and achieve a strong fixing force.
  • FIG. 1 is a view showing a state in which a conventional fractured bone is treated using a plaster bandage wrapped to the outside.
  • FIG. 2 is a view showing a state of treatment by inserting an intramedullary nail into the inside of a conventional fractured bone.
  • FIG. 3 is a view showing a state of treating a fractured site using a conventional fracture plate made of a metal plate and a screw.
  • FIG. 4 (a) and (b) are views showing a support for fixing a metal nail in the bone marrow cavity having a function of preventing rotation and separation of a fractured bone according to the present invention
  • (a) is a view showing the front
  • (b) is a view showing a state in which the straight protrusions are formed
  • (c) is a view showing a state in which the spiral grooves and protrusions are formed.
  • FIG. 5 (a) and (b) are views showing the installation state of the support for fixing the intramedullary metal nail in the bone marrow having the function of preventing rotation and separation of the fractured bone according to the present invention
  • (a) is a view showing a state in which the fixing support is inserted into the metal tablet
  • (b) is a view showing the state in which the fixing support is firmly attached to the surface of the metal tablet by the tightening force according to the contraction of the fixing support by applying heat to the outside of the fixing support It is an enlarged cross-sectional view of the main part showing the state.
  • FIG. 6 is a view showing a state installed in a fractured bone marrow cavity using a support for fixing a metal chisel in the bone marrow cavity having a function of preventing rotation and separation of a fractured bone according to the present invention.
  • the support 100 for fixing a metal nail in the bone marrow having a function to prevent rotation and departure of a fractured bone is the outside of the body 110 having a pipe shape, as shown in FIGS. 4 (a) to (c) A plurality of straight protrusions 111 or spiral grooves 112 and protrusions 111 are formed at equal intervals.
  • the support for fixing 100 is made of a shape memory alloy (shape memory alloy) is inserted into the required number of one or more metal tablets 3 to firmly fix the fracture site.
  • shape memory alloy shape memory alloy
  • the reason that the fixing support 100 is made of a shape memory alloy is that it shrinks as heat is applied using an external heating device (not shown) and can be firmly fixed to the surface of the metal tablet, and when removed It was used because it can be easily removed in a stretched state by applying a temperature below the set room temperature.
  • the protrusion 110 protruding from the fixing support 100 is inserted into the fracture site in a state in close contact with the metal chisel 3 to serve to prevent rotation of the bone.
  • the support 100 for fixing a metal nail in the bone marrow cavity having a function of preventing rotation and separation of the fractured bone configured as described above first checks the fractured site of the bone marrow cavity before the operation.
  • the fixing support 100 is inserted into the metal tablet 3 as shown in FIG. 5 (a).
  • the strength of the fractured portion can be reinforced by installing the fixing support 100 at a location desired by the user (various fracture locations).

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

Abstract

La présente invention concerne un support de fixation de clou intramédullaire ayant une fonction de prévention de la rotation et de la séparation d'un os fracturé, le support de fixation fixant une zone de fracture par insertion, dans une cavité médullaire, d'un clou ayant une force de fixation robuste tandis que le support de fixation est contracté, si le support de fixation constitué d'un alliage à mémoire de forme est ajusté dans un clou intramédullaire à température ambiante et positionné au niveau d'un emplacement souhaité par un utilisateur, puis de la chaleur est appliquée au support de fixation. La présente invention est caractérisée en ce qu'un support de fixation (100) est ajusté dans et fixé à un emplacement souhaité pour un clou intramédullaire (3) pour empêcher la rotation du clou intramédullaire et renforcer la résistance de la zone de fracture, le support de fixation (100) est constitué d'un alliage à mémoire de forme, a une forme de tube vide et a une pluralité de saillies droites ou de saillies en spirale et de rainures formées à des intervalles égaux sur son côté extérieur.
PCT/KR2021/000730 2020-06-19 2021-01-19 Support de fixation de clou intramédullaire ayant une fonction de prévention de la rotation et de la séparation d'un os fracturé Ceased WO2021256650A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020200074730A KR102589248B1 (ko) 2020-06-19 2020-06-19 골절된 뼈의 회전와 이탈방지 기능을 갖는 골수 강 내 금속 정 고정용 지지체
KR10-2020-0074730 2020-06-19

Publications (1)

Publication Number Publication Date
WO2021256650A1 true WO2021256650A1 (fr) 2021-12-23

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PCT/KR2021/000730 Ceased WO2021256650A1 (fr) 2020-06-19 2021-01-19 Support de fixation de clou intramédullaire ayant une fonction de prévention de la rotation et de la séparation d'un os fracturé

Country Status (2)

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KR (1) KR102589248B1 (fr)
WO (1) WO2021256650A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0961586B1 (fr) * 1996-12-23 2004-09-01 Stryker Trauma GmbH Dispositif de deplacement d'une premiere partie d'un os par rapport a une deuxieme partie d'un os
WO2005094705A2 (fr) * 2004-03-31 2005-10-13 Orthofix S.R.L Clou medullaire dote d'un module de fixation d'expansion mis en marche par un ou plusieurs elements d'entrainement
US20130123785A1 (en) * 2011-09-22 2013-05-16 Mx Orthopedics, Corp. Osteosynthetic shape memory material intramedullary bone stent and method for treating a bone fracture using the same
JP6450996B2 (ja) * 2016-09-01 2019-01-16 ヤマウチマテックス・エンジニアリング株式会社 人工骨幹
JP2019017969A (ja) * 2017-07-18 2019-02-07 ソルコ バイオメディカル カンパニー リミテッド 骨片固定装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7833256B2 (en) * 2004-04-16 2010-11-16 Biedermann Motech Gmbh Elastic element for the use in a stabilization device for bones and vertebrae and method for the manufacture of such elastic element
KR100785316B1 (ko) * 2006-06-02 2007-12-17 한국과학기술원 최소침습용 골수강 내 금속정

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0961586B1 (fr) * 1996-12-23 2004-09-01 Stryker Trauma GmbH Dispositif de deplacement d'une premiere partie d'un os par rapport a une deuxieme partie d'un os
WO2005094705A2 (fr) * 2004-03-31 2005-10-13 Orthofix S.R.L Clou medullaire dote d'un module de fixation d'expansion mis en marche par un ou plusieurs elements d'entrainement
US20130123785A1 (en) * 2011-09-22 2013-05-16 Mx Orthopedics, Corp. Osteosynthetic shape memory material intramedullary bone stent and method for treating a bone fracture using the same
JP6450996B2 (ja) * 2016-09-01 2019-01-16 ヤマウチマテックス・エンジニアリング株式会社 人工骨幹
JP2019017969A (ja) * 2017-07-18 2019-02-07 ソルコ バイオメディカル カンパニー リミテッド 骨片固定装置

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Publication number Publication date
KR102589248B1 (ko) 2023-10-16
KR20210156993A (ko) 2021-12-28

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