KR20220042777A - Stand-alone type intervertebral fusion implant cage - Google Patents

Stand-alone type intervertebral fusion implant cage Download PDF

Info

Publication number
KR20220042777A
KR20220042777A KR1020200126014A KR20200126014A KR20220042777A KR 20220042777 A KR20220042777 A KR 20220042777A KR 1020200126014 A KR1020200126014 A KR 1020200126014A KR 20200126014 A KR20200126014 A KR 20200126014A KR 20220042777 A KR20220042777 A KR 20220042777A
Authority
KR
South Korea
Prior art keywords
screw
prosthesis
clip
intervertebral
supporting
Prior art date
Application number
KR1020200126014A
Other languages
Korean (ko)
Inventor
전창수
김상윤
신효철
강경민
Original Assignee
주식회사 제일메디칼코퍼레이션
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 주식회사 제일메디칼코퍼레이션 filed Critical 주식회사 제일메디칼코퍼레이션
Priority to KR1020200126014A priority Critical patent/KR20220042777A/en
Publication of KR20220042777A publication Critical patent/KR20220042777A/en

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/4455—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
    • 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
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7059—Cortical plates
    • 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
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7071—Implants for expanding or repairing the vertebral arch or wedged between laminae or pedicles; Tools therefor
    • 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
    • A61B17/8033—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates having indirect contact with screw heads, or having contact with screw heads maintained with the aid of additional components, e.g. nuts, wedges or head covers
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30721—Accessories
    • A61F2/30749—Fixation appliances for connecting prostheses to the body

Landscapes

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

Abstract

The present invention relates to a stand-alone type intervertebral fusion implant cage (10) capable of improving a fixation force through a screw, preventing settling and separation after a procedure, and reducing side effects such as esophageal irritation, pressure, perforation of the esophagus, etc., due to thickness of a metal plate. The cage comprises: a clip inserting part (202), in which a screw fixing part (200) serving as a metal plate is integrally formed on the top of the implant (100) and is formed inside a screw insertion hole (201) formed in the screw fixing part (200); and an elastic clip (300) in the clip inserting part (202), in which a screw head (410) pushes the elastic clip (300) toward the insertion hole (201) by the rotation of a screw (400), to be fixed with the screw (400), after which the elastic clip (300) is restored to an upper surface of the screw head to prevent the screw 400 from being separated.

Description

자립형 추간체유합보형재{Stand-alone type intervertebral fusion implant cage}Stand-alone type intervertebral fusion implant cage}

본 발명은 자립형 추간체유합보형재에 관한 것으로, 보다 상세하게 설명하면, 본 발명은 자립형 추간체유합보형재에 포함된 스크류를 통한 고정력 향상과 시술 후 침강 및 이탈을 방지하고 기존의 추간체유합보형재와 경추 전방 금속판을 함께 사용함으로 발생하는 두께로 인한 식도자극, 압박, 식도 천공 등의 부작용을 감소시킬 수 있도록 한 자립형 추간체유합보형재에 관한 것이다.The present invention relates to a self-supporting intervertebral fusion prosthesis, and to be described in more detail, the present invention improves the fixing force through the screw included in the free-standing intervertebral fusion prosthesis, prevents settling and separation after the procedure, and provides conventional intervertebral fusion It relates to a self-supporting intervertebral fusion prosthesis that can reduce side effects such as esophageal stimulation, compression, and esophageal perforation due to the thickness caused by the use of the prosthesis and the anterior cervical vertebrae together.

경추 고정 장치는 금속판의 몸체와 척추체 사이에 삽입되어 척추체 간격을 일정하게 유지시키기 위한 보형재(스페이서)가 형성되어 있고, 스크류를 통해 금속판을 척추체에 결합하는 구조로 이루어져 있다. 이러한 경추 고정 장치는 상부 척추체와 하부 척추체 사이에 배치된 보형재가 이탈되는 것을 방지하고, 상부 척추체와 하부 척추체를 지지하면서 각 척추체의 침하(subsidence) 현상이 일어나는 것 또한 방지하기 위한 것이다. The cervical spine fixing device is inserted between the body of the metal plate and the vertebral body, a prosthetic material (spacer) for maintaining a constant vertebral body interval is formed, and has a structure in which the metal plate is coupled to the vertebral body through a screw. This cervical vertebra fixation device is to prevent the prosthetic material disposed between the upper vertebral body and the lower vertebral body from being separated, and also to prevent the subsidence of each vertebral body from occurring while supporting the upper vertebral body and the lower vertebral body.

이러한 경추 고정장치는 통상 신경외과(neurosurgery)와 정형외과(orthopedics) 영역에서 주로 퇴행성 추간판질환(degene rative disc disease)의 치료에 사용하며 척수탈위증(spondylolisthesis), 골절(fracture), 척수협착증(spinal stenosis), 기형적 변형(ie, scoliosis, kyphosis, lordosis), 종양(tumor), 가관절증(pseudoarthrosis) 등의 치료 및 교정에 사용될 수 있다.This cervical vertebra fixation device is usually used for the treatment of degenerative disc disease in the fields of neurosurgery and orthopedics, and spondylolisthesis, fracture, and spinal stenosis. stenosis), malformations (ie, scoliosis, kyphosis, lordosis), tumors (tumor), can be used for the treatment and correction of pseudoarthrosis (pseudoarthrosis).

상기와 같은 관점에서 발명된 것으로, 등록특허 제10-1040515호의 "추간체 고정 보형재"(이하 '선행기술1')와, 등록특허 제10-1498013호의 "고정날이 결합된 추간체 고정 보형재"(이하 '선행기술2')와, 공개특허 제10-2010-0116331호의 "추간체 고정 보형재"(이하 '선행기술3')를 이용한 추간체유합보형재삽입술과, 등록실용 제20-0305911호의 "경추전방고정기기"(이하'선행기술4')와, 등록특허 제10-0620252호의 "경추 고정장치"(이하 '선행기술5')와, 등록특허 제10-0974498호의 "경추 고정 장치"(이하 '선행기술6')와, 등록특허 제10-1415241호의 "경추 고정 장치"(이하 '선행기술7')를 이용한 경추 고정장치 등이 다수의 기술이 공지되어 있다.Invented from the above point of view, the "intervertebral body fixed prosthesis" (hereinafter referred to as 'prior art 1') of Patent Registration No. 10-1040515 and "Intervertebral body fixed beam with fixed blade combined" of Patent Registration No. 10-1498013 Profile" (hereinafter 'prior art 2') and "intervertebral body fusion prosthesis using "intervertebral body fixed prosthesis" (hereinafter 'prior art 3') of Patent Publication No. 10-2010-0116331, and Registered Practical No. 20 -0305911 "Cervical Spine Anterior Fixation Device" (hereinafter 'Prior Art 4'), "Cervical Spine Fixation Device" (hereinafter 'Prior Art 5') of Registered Patent No. 10-0620252, and "Cervical Spine" of Registered Patent No. 10-0974498 Fixing device" (hereinafter 'prior art 6') and "cervical vertebra fixation device" (hereinafter 'prior art 7') of Patent Registration No. 10-1415241 are known for a number of techniques such as a cervical vertebra fixation device.

그러나, 선행기술1 및 선행기술2는 부품 갯수가 많고 복잡하여 조립 및 체결이 힘들며 추체 사이에 고정시키는 시술에 많은 시간이 소요될 뿐 아니라, 많은 부품 갯수로 인하여 제품 단가가 높아지는 문제점이 있어서 보급에 한계점이 있다.However, the prior art 1 and the prior art 2 have a problem in that the number of parts is large and complicated, which makes assembly and fastening difficult, and it takes a lot of time to fix the vertebrae between the vertebrae, and the product price increases due to the large number of parts. There is this.

선행기술3은 금속판(플레이트)에 대응하는 몸체와 케이지(보형재)에 대응하는 돌출 부재가 일체로 이루어져 다양한 체형과 뼈 형상을 가진 환자의 추체 사이에 정확하고 확실한 안착 고정 위치를 제공하기 힘든 문제점이 있다.In the prior art 3, the body corresponding to the metal plate (plate) and the protruding member corresponding to the cage (prosthetic material) are integrally formed, so it is difficult to provide an accurate and reliable seating and fixation position between the vertebrae of patients with various body types and bone shapes. There is this.

특히, 도 1의 (a)에 도시된 바와 같이, 추간체유합보형재(2)만을 단독으로 사용한 경우 초기 안정성이 불안정해 수술 후 과도한 움직임 등으로 시술 후 추간체유합보형재(2)가 이탈되는 문제가 종종 발생하였다.In particular, as shown in Fig. 1 (a), when only the intervertebral fusion prosthesis 2 is used alone, the initial stability is unstable, and the intervertebral fusion prosthesis 2 is detached after the operation due to excessive movement after surgery, etc. Problems often occurred.

또한, 상기 선행기술 들은 튼튼한 내구성을 유지하기 위하여 별개의 장치로 도 1의 (b)에 도시된 바와 같이, 추간체 삽입 나사못(이하, 스크류라 칭함)을 금속판(1)에 고정하여야하기 때문에 금속판이 두꺼워질 수밖에 없는 단점을 가지고 있었다.In addition, as shown in FIG. 1 ( b ) as a separate device in the prior art to maintain strong durability, the intervertebral body insertion screw (hereinafter referred to as a screw) must be fixed to the metal plate 1, so the metal plate It had the disadvantage of being thick.

상기 금속판(1)의 두께 증가는 식도자극 또는 압박, 식도천공, 조직괴사 등이 발생할 위험이 높일 수가 있으며, 또한, 추간체유합보형재와 금속판 고정술을 함께 수행할 경우 수술시간이 증가되고, 환자에게 경제적으로 부담이 되기 때문에 한 개의 보형재로 수술을 완료할 수 있는 보형재가 요구되고 있는 실정이다.An increase in the thickness of the metal plate 1 may increase the risk of esophageal stimulation or compression, esophageal perforation, tissue necrosis, etc., and, when the intervertebral body fusion prosthesis and metal plate fixation are performed together, the operation time is increased, and the patient Because it is an economic burden to the patient, there is a demand for an implant that can complete the operation with one implant.

도 2 또는 도 3에 도시된 자립형 추간체유합보형재(Stand-alone cage)(10)가 개발되어 사용되어 왔다.A stand-alone cage 10 shown in FIG. 2 or FIG. 3 has been developed and used.

그러나, 상기와 같은 자립형 추간체유합보형재(10)는 PEEK(olyetherethereketone)소재(압출성형 수지소재로 고성능 슈퍼엔지니어링플라스틱이라고 도함)의 구조에 스크류가 삽입되는 경로부분 및 스크류 이탈방지 부분의 금속 재료가 결합된 형태로 제조되어 사용되고 있으나, 이는 제조단가에 영향을 미치고, 상기 제조단가의 상승은 환자에게 경제적인 부담감을 줄 수 밖에 없는 것이 현실이다.However, the self-supporting intervertebral body fusion prosthesis 10 as described above is a metal material of the path part and the screw separation prevention part where the screw is inserted into the structure of the PEEK (olyetherethereketone) material (extrusion-molded resin material, also called high-performance super engineering plastic). is manufactured and used in a combined form, but this affects the manufacturing cost, and the increase in the manufacturing cost is a reality that inevitably gives an economic burden to the patient.

또한, 상기 자립형 추간체유합보형재는 스크류 이탈방지를 위해 별도의 메커니즘과 수술기구가 필요하며 이는 시술시간의 증가로 이어져 환자의 회복에도 영향을 주었다. In addition, the self-supporting intervertebral body fusion prosthesis requires a separate mechanism and surgical instrument to prevent screw separation, which leads to an increase in operation time, which affects the recovery of the patient.

따라서, 상기와 같은 자립형 추간체유합보형재는 잠금 메커니즘을 구현하기 위해 폴리머(PEEK) 소재와 티타늄이 결합된 형태로 이루어져 있기 때문에, 가공 및 조립이 복잡하여 제조비용이 상승하는 문제점이 있다.Therefore, since the self-supporting intervertebral body fusion prosthesis as described above consists of a polymer (PEEK) material and titanium combined to implement a locking mechanism, there is a problem in that the manufacturing cost is increased due to complicated processing and assembly.

따라서, 본 발명은 상술한 바와 같은 종래의 제반 문제점들을 해소하기 위하여 창안된 것으로서, 스크류를 통한 고정력 향상과 시술 후, 침강 및 이탈을 방지하고 금속판 두께로 인한 식도자극, 압박, 식도 천공 등의 부작용을 감소시키는 자립형 추간체유합보형재(Stand-alone cage)를 제공함에 있다.Therefore, the present invention has been devised to solve the problems of the prior art as described above, and it improves the fixing force through the screw and prevents sedimentation and separation after the procedure, and side effects such as stimulation of the esophagus due to the thickness of the metal plate, pressure, esophageal perforation, etc. It is to provide a stand-alone cage that reduces the size of the intervertebral body.

상기와 같은 기술적 과제를 달성하기 위한 본 발명은 The present invention for achieving the above technical problem

상부 척추체와 하부 척추체 사이에 배치된 보형재가 이탈되는 것을 방지하고, 상부 척추체와 하부 척추체를 지지하면서 각 척추체의 침하 현상이 일어나는 것 또한 방지하기 위한 추간체유합보형재에 있어서,In the intervertebral fusion prosthesis for preventing the prosthetic material disposed between the upper and lower vertebral bodies from being separated, and for preventing the subsidence of each vertebral body while supporting the upper and lower vertebral bodies,

상기 추간체유합보형재는 보형재 상부에 금속판 역할을 하는 스크류고정부가 일체로 형성되되, 상기 스크류고정부에 형성된 스크류 삽입구멍 내측에 형성되는 클립 삽입부; 및The intervertebral body fusion prosthesis includes a screw fixing part integrally formed with a metal plate on the top of the prosthesis, and a clip insertion part formed inside the screw insertion hole formed in the screw fixing part; and

상기 클립 삽입부에 탄성클립;을 마련하여, 스크류의 회전에 의해 상기 스크류 헤드가 상기 탄성클립을 구멍 쪽으로 밀어 냈다가 스크류가 고정된 후, 상기 탄성클립이 스크류헤드 상면으로 복원되어 상기 스크류의 이탈을 방지하도록 한 것 특징으로 한다.An elastic clip is provided in the clip insertion part, the screw head pushes the elastic clip toward the hole by rotation of the screw, and after the screw is fixed, the elastic clip is restored to the upper surface of the screw head and the screw is detached It is characterized in that it is designed to prevent

상기와 같은 구성을 가지는 본 발명의 자립형 추간체유합보형재는 환자의 과도한 움직에 의한 추간체유합보형제의 이탈방지 및 금속판의 두께로 인한 부작용을 해소할 수 있도록 한 장점을 가진다.The self-supporting intervertebral body fusion prosthesis of the present invention having the above configuration has an advantage in that it can prevent the separation of the intervertebral body fusion prosthesis due to excessive movement of the patient and solve the side effects due to the thickness of the metal plate.

도 1의 (a),(b)(c)는 종래 여러 유형의 경추 고정 장치를 이용하여 시술한 상태를 나타낸 도면으로,
(a)는 추간체유합보형재를 추간 사이에 삽입한 상태를 나타낸 도면이고, (b)는 경추전방금속판을 이용한 시술상태를 나타낸 도면이며, (c)는 추간체유합보형재와 경추전방금속판이 함께 사용된 예를 나타낸 도면이다.
도 2의 (a),(b)(c)는 종래 자립형 추간체유합보형재의 여러 유형을 나타낸 도면이다.
도 3의 (a) 및 (b)은 자립형 추간체유합보형재를 분해하여 나타낸 도면으로, (a)는 조립된 상태를 나타낸 도면이고, (b)은 분해된 상태를 나타낸 도면이다.
도 4는 본 발명에 따른 자립형 추간체유합보형재를 나타낸 사시도이다.
도 5는 본 발명에 따른 자립형 추간체유합보형재를 나타낸 평면도이다.
도 6은 도 5의 A-A 선 단면도를 나타낸 도면이다.
도 7은 본 발명에 따른 스크류 헤드가 탄성편을 누르고 있다가 해제되는 과정을 설명하기 위한 도면이다.
도 8은 본 발명에 따른 스크류 만 발췌하여 나타낸 사시도이다.1 (a), (b) (c) is a view showing the state of treatment using various types of cervical vertebrae fixing devices in the prior art,
(a) is a view showing the state of inserting the intervertebral body fusion prosthesis between the intervertebral bodies, (b) is a view showing the operation state using the cervical anterior metal plate, (c) is a diagram showing the intervertebral body fusion prosthesis and the cervical anterior metal plate It is a drawing showing an example used together.
2 (a), (b) (c) is a view showing various types of conventional self-supporting intervertebral body fusion prosthesis.
3 (a) and (b) are views showing the self-supporting intervertebral body fusion prosthesis by disassembling, (a) is a view showing the assembled state, (b) is a view showing the disassembled state.
4 is a perspective view showing a self-supporting intervertebral body fusion prosthesis according to the present invention.
5 is a plan view showing a self-supporting intervertebral body fusion prosthesis according to the present invention.
6 is a view showing a cross-sectional view taken along line AA of FIG. 5 .
7 is a view for explaining a process in which the screw head according to the present invention is released while pressing the elastic piece.
8 is a perspective view showing only the screw according to the present invention.

이하, 도면을 참조하여 본 발명의 자립형 추간체유합보형재의 구성을 상세하게 설명한다.Hereinafter, the configuration of the self-supporting intervertebral body fusion prosthesis of the present invention will be described in detail with reference to the drawings.

단, 개시된 도면들은 당업자에게 본 발명의 사상이 충분하게 전달될 수 있도록 하기 위한 예로서 제공되는 것이다. 따라서, 본 발명은 이하 제시되는 도면들에 한정되지 않고 다른 태양으로 구체화될 수도 있다.However, the disclosed drawings are provided as examples to sufficiently convey the spirit of the present invention to those skilled in the art. Accordingly, the present invention is not limited to the drawings presented below and may be embodied in other aspects.

또한, 본 발명 명세서에서 사용되는 용어에 있어서 다른 정의가 없다면, 본발명이 속하는 기술 분야에서 통상의 지식을 가진 자가 통상적으로 이해하고 있는의미를 가지며, 하기의 설명 및 첨부 도면에서 본 발명의 요지를 불필요하게 흐릴 수 있는 공지 기능 및 구성에 대한 상세한 설명은 생략한다.In addition, unless there is another definition in the terms used in the present invention, those of ordinary skill in the art to which the present invention pertains have the meaning commonly understood, and the gist of the present invention in the following description and accompanying drawings Detailed descriptions of well-known functions and configurations that may be unnecessarily obscure will be omitted.

본 발명은 자립형 추간체유합보형재(10)를 구성함에 있어, 종래 금속판을 사용하지 않고 대신에 자립형 추간체유합보형재(10)를 구성하는 보형재(100) 상부에 금속판 역할을 하는 스크류고정부(200)를 일체로 형성한 것이 본 발명의 특장(特長)이다.The present invention does not use a conventional metal plate in constructing the self-supporting intervertebral fusion prosthesis 10, but instead of the self-supporting intervertebral fusion prosthesis 10. The screw that serves as a metal plate on the top of the prosthesis 100 constituting the self-supporting intervertebral fusion prosthesis 10 It is a feature of the present invention that the top 200 is integrally formed.

즉, 기존에는 금속판 또는 PEEK 소재로 이원화되어 있고 스크류가 삽입되는 경로부분과 스크류 이탈방지 부분이 금속 재료로 결합된 형태로 제조되어 있기 때문에 제조단가가 상승하였는데, 이러한 문제점을 해소하기 위해 본 발명은 별도의 기구사용 없이 한 번의 스크류 삽입으로 잠금이 구현되고, 손쉬운 스크류의 제거가 가능하며, 기존의 복잡한 형태의 가공 및 조립품이 필요하지 않도록 한 것이 본 ㅂ발명이 추구하는 목적이다.That is, the manufacturing cost has increased because the existing metal plate or PEEK material is dualized, and the path part into which the screw is inserted and the screw separation prevention part are manufactured in a combined form with a metal material. In order to solve this problem, the present invention The purpose of the present invention is to realize locking with one screw insertion without the use of a separate tool, to enable easy screw removal, and to eliminate the need for existing complex processing and assembly parts.

이를 실현하기 위해 상기 스크류고정부(200)에 형성된 스크류 삽입구멍(201) 내측에는 클립 삽입부(202)가 형성된다.In order to realize this, a clip insertion part 202 is formed inside the screw insertion hole 201 formed in the screw fixing part 200 .

상기 클립 삽입부(202)에는 탄성클립(300)이 장착된다.An elastic clip 300 is mounted on the clip insertion part 202 .

상기 탄성클립(300)은 스크류의 헤드(410)에 의해 일시적으로 삽입구멍(201) 쪽으로 밀려 나갔다가 탄성력에 의해 원 상태로 복원되도록 구성된다.The elastic clip 300 is temporarily pushed out toward the insertion hole 201 by the head 410 of the screw and is configured to be restored to its original state by the elastic force.

예를들면, 상기 탄성클립(300)은 스크류(400) 삽입시 도 6에 도시된 바와 같이, 상기 스크류의 헤드(410)가 클립(300)을 일정한 힘으로 클립 삽입부(210) 쪽으로 밀어냄과 동시에 밀려난 클립(300)이 탄성력에 의해 복원된는 힘에 의해 상기 스크류의 헤드(410)의 상방에서 눌러주게 됨으로써,상기 스크류(400)가 스크류고정부(200)에 공고하게 결합되면서 동시에 스크류(400)의 이탈을 방지할 수가 있는 것이다.For example, when the elastic clip 300 is inserted into the screw 400, the head 410 of the screw pushes the clip 300 toward the clip insertion part 210 with a constant force, as shown in FIG. 6 . At the same time, the clip 300 pushed out at the same time is pressed from above the head 410 of the screw by the force restored by the elastic force, so that the screw 400 is firmly coupled to the screw fixing unit 200 and at the same time the screw It is possible to prevent the deviation of (400).

역으로, 상기 자립형 추간체유합보형재(10)를 제거하기 위해서는 상기 스크류고정부(200)에 공고하게 결합된 스크류 헤드(410)를 a방향으로 회전시키면, 상기 스크류 헤드(410)에 형성된 체결부(411)가 탄성클립(300)을 화살표 b방향으로 회전시키면 상기 탄성클립(300)에 의해 누름이 해제되어 손 쉽게 스크류(400)를 스크류고정부(200)로부터 이탈시킬 수가 있는 것이다. Conversely, in order to remove the self-supporting intervertebral body fusion prosthesis 10, if the screw head 410 firmly coupled to the screw fixing part 200 is rotated in the a direction, the fastening formed in the screw head 410 is When the portion 411 rotates the elastic clip 300 in the direction of the arrow b, the pressure is released by the elastic clip 300 , so that the screw 400 can be easily separated from the screw fixing part 200 .

이때, 이를 실현하기 위해서는 상기 스크류(400)의 헤드(410)가 도 7에 도시된 바와 같이, 드라이버와 같은 체결공구에 의해 조여지는 체결부(411)와 완만한 경사면을 갖는 평탄부(412)를 가지도록 스크류헤드(410)를 가공하여 사용해야 한다.At this time, in order to realize this, as shown in FIG. 7 , the head 410 of the screw 400 includes a fastening part 411 that is tightened by a fastening tool such as a screwdriver and a flat part 412 having a gentle slope. It is necessary to process the screw head 410 to have a

따라서, 상기와 같이 구성되는 자립형 추간체유합보형재(10)는 한번의 수술절차로 스크류의 삽입과 제거가 가능하도록 함으로써, 수술절차 간소화시킬 수가 있는 것이다.Therefore, the self-supporting intervertebral body fusion prosthesis 10 configured as described above enables the insertion and removal of the screw in a single surgical procedure, thereby simplifying the surgical procedure.

이상의 설명에서 본 발명의 자립형 추간체유합보형재의 구성 및 작동을 첨부된 도면을 참조하여 상세하게 설명하였으나, 본 발명은 당업자에 의하여 다양한 수정, 변경 및 치환이 가능하고, 이러한 수정, 변경 및 치환은 본 발명의 보호범위에 속하는 것으로 해석되어야 한다.In the above description, the configuration and operation of the self-supporting intervertebral fusion prosthesis of the present invention has been described in detail with reference to the accompanying drawings, but the present invention is capable of various modifications, changes and substitutions by those skilled in the art, and these modifications, changes and substitutions are It should be construed as belonging to the protection scope of the present invention.

1 : 추간체유합보형재 100 : 보형재
200 : 스크류고정부 201 : 스크류 삽입구멍
202 : 클립 삽입부 300 : 탄성클립
400 : 스크류 410 : 스크류 헤드
411 : 체결부 412 : 평탄부1: intervertebral body fusion prosthesis 100: prosthesis
200: screw fixing part 201: screw insertion hole
202: clip insert 300: elastic clip
400: screw 410: screw head
411: fastening part 412: flat part

Claims (3)

상부 척추체와 하부 척추체 사이에 배치된 보형재가 이탈되는 것을 방지하고, 상부 척추체와 하부 척추체를 지지하면서 각 척추체의 침하 현상이 일어나는 것 또한 방지하기 위한 추간체유합보형재에 있어서,
상기 추간체유합보형재는 보형재에 금속판 역할을 하는 스크류고정부가 일체로 형성한 것을 특징으로 하는 자립형 추간체유합보형재.In the intervertebral body fusion prosthesis for preventing the prosthesis disposed between the upper and lower vertebral bodies from being separated, and for preventing the subsidence of each vertebral body while supporting the upper and lower vertebral bodies,
The intervertebral fusion prosthesis is a self-supporting intervertebral body fusion prosthesis, characterized in that the screw fixing part serving as a metal plate is integrally formed with the prosthesis. 제 1항에 있어서,
상기 스크류고정부에 형성된 스크류 삽입구멍 내측에 형성되는 클립 삽입부; 및
상기 클립 삽입부에 탄성클립을 마련하여, 스크류의 회전에 의해 상기 스크류 헤드가 상기 탄성클립을 구멍 쪽으로 밀어 냈다가 스크류가 고정된 후, 상기 탄성클립이 스크류헤드 상면으로 복원되어 상기 스크류의 이탈을 방지하도록 한 것 특징으로 하는 자립형 추간체유합보형재.The method of claim 1,
a clip insertion part formed inside the screw insertion hole formed in the screw fixing part; and
An elastic clip is provided in the clip insertion part, and the screw head pushes the elastic clip toward the hole by rotation of the screw, and after the screw is fixed, the elastic clip is restored to the upper surface of the screw head to prevent the screw from coming off. A self-supporting intervertebral body fusion prosthesis, characterized in that it prevents it. 제 2항에 있어서,
상기 스크류 헤드는 체결공구에 의해 조여지는 체결부와 완만한 경사면을 갖는 평탄부로 구성된 것을 특징으로 하는 자립형 추간체유합보형재.
3. The method of claim 2,
The screw head is a self-supporting intervertebral body fusion prosthesis, characterized in that it consists of a fastening part tightened by a fastening tool and a flat part having a gentle slope.
KR1020200126014A 2020-09-28 2020-09-28 Stand-alone type intervertebral fusion implant cage KR20220042777A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020200126014A KR20220042777A (en) 2020-09-28 2020-09-28 Stand-alone type intervertebral fusion implant cage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020200126014A KR20220042777A (en) 2020-09-28 2020-09-28 Stand-alone type intervertebral fusion implant cage

Publications (1)

Publication Number Publication Date
KR20220042777A true KR20220042777A (en) 2022-04-05

Family

ID=81182198

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020200126014A KR20220042777A (en) 2020-09-28 2020-09-28 Stand-alone type intervertebral fusion implant cage

Country Status (1)

Country Link
KR (1) KR20220042777A (en)

Similar Documents

Publication Publication Date Title
US11478283B2 (en) Anterior cervical plate
US9775652B2 (en) Lateral plate
US7338491B2 (en) Spinal fixation locking mechanism
US8062367B2 (en) Screw locking mechanism and method
US9668783B2 (en) Devices and method for treatment of spondylotic disease
CN108498150A (en) spinal implant system and method
US20150182262A1 (en) Vertical Inline Plate
US20120022598A1 (en) Spinal fixation system
US9839449B2 (en) Translational plate and compressor instrument
WO2009073655A1 (en) Spinal fixation assembly
JP2020127838A (en) Apparatus of treating spinous processes
JP6713061B2 (en) Anterior spinal implants and related systems and methods for reducing spinal alignment abnormalities
KR20220042777A (en) Stand-alone type intervertebral fusion implant cage
CN109475372A (en) Spine correcting system and method
AU2017344452B2 (en) Intervertebral fusion cage
EP3383295A1 (en) Bone fixation apparatus with fastener securement mechanism and methods of use

Legal Events

Date Code Title Description
E902 Notification of reason for refusal
E601 Decision to refuse application