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KR100498755B1 - Intervertebral fusion cage - Google Patents

Intervertebral fusion cage Download PDF

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KR100498755B1
KR100498755B1 KR10-2002-0028589A KR20020028589A KR100498755B1 KR 100498755 B1 KR100498755 B1 KR 100498755B1 KR 20020028589 A KR20020028589 A KR 20020028589A KR 100498755 B1 KR100498755 B1 KR 100498755B1
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vertebral
fusion cage
intervertebral
bone
fusion
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김철생
최성필
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김철생
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/44Joints for the spine, e.g. vertebrae, spinal discs
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/44Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/4455Joints 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
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/30767Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30907Nets or sleeves applied to surface of prostheses or in cement
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/44Joints for the spine, e.g. vertebrae, spinal discs
    • A61F2/442Intervertebral or spinal discs, e.g. resilient
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/46Special tools for implanting artificial joints
    • A61F2/4603Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof
    • A61F2/4611Special tools for implanting artificial joints for insertion or extraction of endoprosthetic joints or of accessories thereof of spinal prostheses
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2002/30001Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30108Shapes
    • A61F2002/3011Cross-sections or two-dimensional shapes
    • A61F2002/30112Rounded shapes, e.g. with rounded corners
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F2/00Filters 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
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/30767Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30907Nets or sleeves applied to surface of prostheses or in cement
    • A61F2002/30909Nets

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Transplantation (AREA)
  • Neurology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Cardiology (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Prostheses (AREA)

Abstract

본 발명은 척추기형의 교정과 골절탈구, 척추디스크, 척추관 협착증, 종양 등의 척추체를 제거하는 수술시에 불안정한 척추를 안정화시키고 질병이 발생한 추체를 제거시키고 결손된 추체를 복원시키기 위하여 척추 추체간 유합 케이지에 골이식편, 인공골, 수산화아파타이트와 같은 것을 삽입하여 추체간을 정상적인 상태와 같이 복원시킬 수 있는 척추고정용 척추 추체간 유합 케이지에 관한 것이다.The present invention is to stabilize the unstable spine during surgery to remove vertebral bodies such as spinal malformation, fracture dislocation, vertebral disc, spinal canal stenosis, and tumors, to remove diseased vertebral bodies and to restore the missing vertebral vertebral fusion. It relates to a spinal interbody fusion cage for spinal fixation that can restore the intervertebral body to its normal state by inserting such a bone graft, artificial bone, apatite hydroxide into the cage.

본 발명은 질병이 발생하여 제거되어지는 척추 추간판 또는 추체를 복원시키기 위하여 추체간 사이에 삽입이 용이하고 추체간 유합을 촉진시키는 작용을 하는 골이식편, 인공골, 수산화아파타이트 등이 척추 추체간 유합 케이지에서 쉽게 분리되지 않고 수술이 용이하도록 척추 추체간 유합케이지에 개폐장치를 부착하여 사용이 용이하도록 하는 장치와, 상기한 척추 추체간 유합 케이지 내부에 골유합 강도를 높이기 위하여 척추 추체간 유합케이지의 안쪽에 금속세선 망을 삽입하는 것을 포함한다.The present invention is a bone graft, artificial bone, hydroxyapatite, etc. is easy to insert between the intervertebral vertebrae to restore the vertebral intervertebral disc or the vertebral body to be removed due to disease, spinal fusion cage A device for attaching the opening and closing device to the intervertebral vertebrae fusion cage for easy operation without being easily separated from the vertebral vertebral fusion cage, and to increase the bone union strength in the intervertebral vertebral fusion cage. Inserting a fine wire mesh.

Description

척추체 유합케이지{INTERVERTEBRAL FUSION CAGE}Vertebral fusion cage {INTERVERTEBRAL FUSION CAGE}

본 발명은 척추 추체간 유합케이지에 관한 것으로, 보다 상세하게는 척추기형의 교정과 골절탈구, 척추디스크, 척추관 협착증, 종양, 추체간판의 협소 등과 같이 추체를 제거하고 제거된 추체간의 결손부위의 골유합을 촉진하여 복원시키고 추체간의 간격을 복원, 유지하여 척추를 정상적인 상태로 교정하는 척추 추체간 유합케이지에 관한 것이다.The present invention relates to a intervertebral fusion cage, and more particularly, to the bone fusion of the intervertebral defects removed by removing the vertebrae, such as the correction of vertebral malformations, fracture dislocations, vertebral discs, spinal canal stenosis, tumors, narrowing of the intervertebral discs, etc. The present invention relates to a intervertebral interbody fusion cage for correcting the spine to a normal state by restoring and maintaining the intervertebral spacing.

추체간의 유합 성공여부는 골편에 따른 요인과 생체역학적인 요인으로 나눌 수 있으며, 골편에 따른 요인으로는 유합시 사용되는 골편의 종류(자가골 또는 동종골), 골편의 강도 및 골편이 추체와 접촉되는 면적 등이 있으며, 생체역학적인 요인으로는 유합이 이루어지는 동안 분절의 안정성이 매우 중요하다. 추체간 유합 고정장치는 유합이 이루어지는 동안에 장골에서 커다란 크기의 단단한 지주골을 얻지 않고도 부스러기 형태의 뼈를 채워 체중부하를 견디며 결손된 추체를 복원하여 추체간의 간격을 그대로 유지시키는데 중요한 의미를 갖는다. 척추 추체간 유합케이지는 골유합을 촉진시키기 위하여 환자 자신의 장골에서 채취한 골편이나 타인의 골편, 또는 골편 대체물을 넣어 사용하고 있다.The success of fusion between the vertebrae can be divided into factors according to the bone fragments and biomechanical factors.The factors according to the bone fragments include the type of bone fragments (autologous or allogeneic bone) used in the fusion, the strength of the bone fragments, and the area where the bone fragments contact the vertebrae. The biomechanical factor is the stability of the segment during fusion. The intervertebral fusion fixture is important to maintain the spacing between the vertebrae by restoring the missing vertebrae by filling the debris-shaped bones without the need for obtaining a large sized scaffold from the long bone during the fusion. The intervertebral fusion cage is used to insert bone fragments taken from the patient's own long bone, bone fragments of another person, or bone substitutes to promote bone union.

현재 사용되고 있는 척추 추체간 유합케이지는 다양한 형태의 종류가 있는데 재료에 따라서 탄소섬유 케이지, 폴리머 케이지, 티타늄 케이지로 나눌 수 있는데, 탄소섬유와 폴리머 케이지는 피질골과 같은 탄성계수를 갖고 있다는 장점 이외에는 생체와의 이물질 반응과 조직과의 해리 등의 단점을 갖고 있다. 종류별로 보면 나사형태, 직육면체, 총알형태, 사각형태, 속이 비어있는 형태, 속이 가득찬 형태 등 여러 모양의 케이지가 선보이고 있으나, 이들 케이지는 분절의 안정성, 추체의 복원, 생체역학적인 목적은 달성하였으나 케이지와 골유합을 확실히 이룬다는 측면에서는 보완해야 할 사항들이 많이 있다.There are various types of intervertebral fusion cages in use today, which can be divided into carbon fiber cages, polymer cages, and titanium cages. Depending on the materials, carbon fiber and polymer cages have the same elastic modulus as the cortical bone. Has disadvantages such as foreign body reaction and dissociation with tissue. By type, cages of various shapes such as screw shape, cuboid, bullet shape, rectangular shape, hollow shape and full shape are introduced, but these cages have achieved the stability of segment, restoration of vertebral body and biomechanical purpose. There are many things that need to be supplemented in terms of ensuring the union with the cage.

본 발명은 종래의 문제점들을 감안하여 안출된 것으로, 골과의 효과적인 유합을 위하여 척추 추체간 유합케이지의 안쪽에 골이식편, 인공골, 수산화아파타이트와 같은 것을 삽입하여 상기한 것들이 골유합을 촉진시키며 뼈가 보다 치밀하고 안정적으로 자랄 수 있도록 한 신규의 유합케이지를 제공하는 것을 목적으로 한다.The present invention has been made in view of the conventional problems, by inserting things such as bone grafts, artificial bones, hydroxide apatite inside the intervertebral vertebral fusion cage for effective fusion with the bone and promotes bone union and bone It is an object of the present invention to provide a new fusion cage that allows for more compact and stable growth.

또한, 골유합물의 이탈의 방지하고 골유합 강도가 증가하도록 한 신규의 유합케이지를 제공하는 것을 목적으로 한다.It is also an object of the present invention to provide a new union cage that prevents the release of bone union and increases bone union strength.

본 발명은 상기의 목적을 달성하기 위하여, 골편의 이탈을 방지하기 위하여 척추 추간체 유합케이지(1)의 상단과 하단부위는 막혀있는 상태로 유지하고 측면부위에 개폐장치(6)를 연결하여 척추 추간체 유합케이지(1)로부터 골유합물의 이탈을 방지하면서 골유합물이 척추 추체간 유합케이지(1)의 내부로 삽입이 용이하도록 하였다.In order to achieve the above object, the present invention maintains the upper and lower portions of the intervertebral fusion cage (1) in a blocked state and connects the opening and closing device (6) to the lateral region to prevent the detachment of the bone fragments of the spine. The bone union was easily inserted into the intervertebral fusion cage 1 while preventing the separation of the bone union from the intervertebral fusion cage 1.

또한, 척추 추체간 유합케이지(1)의 안쪽면에 금속세선 망(8)을 삽입하여 골유합물이 척추 추체간 유합케이지(1)로부터 이탈하는 것을 방지하고 골과의 유합도를 촉진하도록 하였다. In addition, a metal wire mesh 8 was inserted into the inner surface of the intervertebral fusion cage 1 to prevent the bone union from escaping from the intervertebral fusion cage 1 and to promote the union with the bone.

이하, 첨부된 도면을 참조하여 발명의 바람직한 실시예를 상세하게 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

상기한 척추 추체간 유합케이지(1)는 척추체(2)를 제거하고 척추의 골유합을 촉진시키기 위해 골편을 척추 추체간 유합케이지(1)에 삽입하는데, 이때 척추 추체간 유합케이지로(1)를 손쉽게 삽입시킬 수 있도록 전단부(3)를 부드러운 곡선으로 가공하였으며, 척추 추체간 유합케이지(1)의 상단부는 경사면으로 형성하여 척추체(2) 간에 삽입 후 만곡을 유지하도록 하였다. 또한, 척추추간체 유합케이지(1)는 골유합물의 이탈을 방지하기 위하여 상하단부를 차단하여 골유합물이 분리되지 않으면서 골유합을 향상시키도록 하였다. 또한, 측단부에 개폐장치(6)를 부착하여 골유합물이 척추 추체간 유합케이지(1)의 내부에 삽입이 용이하도록 하였다. The intervertebral fusion cage (1) is inserted into the intervertebral fusion cage (1) to remove the vertebral body (2) and promote the union of the spine, wherein the intervertebral fusion cage (1) The front end portion (3) was processed into a smooth curve for easy insertion, and the upper end of the intervertebral vertebrae fusion cage (1) was formed to be inclined to maintain curvature after insertion between the vertebral bodies (2). In addition, the intervertebral union fusion cage (1) was to block the upper and lower ends to prevent the separation of the bone union to improve the bone union without separating the union. In addition, the opening and closing device 6 is attached to the side end portion so that the bone union can be easily inserted into the intervertebral fusion interbody cage 1.

또한, 골과의 유합을 향상시키고 골유합물의 이탈을 방지하기 위하여 척추 추체간 유합케이지(1)의 안쪽에 금속세선 망을 삽입하였으며, 이는 철사로 구성될 수 있다. 또한, 척추 추체간 유합케이지(1)가 골과의 안정적으로 고정되도록 상하단과 측면에 유합촉직 구멍(4)을 만들어 주어서 뼈가 안정되게 자라 들어오도록 하였다. In addition, in order to improve the union with the bone and prevent the separation of the bone union intermetallic wire mesh inserted into the intervertebral vertebral fusion cage (1), which may be composed of a wire. In addition, the intervertebral vertebrae fusion cage (1) by making the union hole 4 in the upper and lower ends and sides so as to be stably fixed to the bone so that the bones grow stably.

척추 추체간 유합케이지(1)는 척추체(2)의 상하단부와 접하는 상하부에 역방향의 톱니(5)를 형성하여 척추체(2)의 비틀림이나 굽힘에 의해 미끌리지 않게 하였다. 척추 추체간 유합케이지(1)의 톱니(5) 각각의 끝점 높이는 동일하게 형성할 수 있으며, 톱니(5)의 깊이는 후단부로 갈수록 깊이를 깊게 형성하고, 간격은 일정하게 형성할 수 있어서 척추체간(2)에 용이하게 삽입할 수 있게 함과 아울러 고정력을 향상시켜 줄 수 있게 되어 있다.The intervertebral vertebrae fusion cage 1 is formed with the teeth 5 in the reverse direction at the upper and lower sides of the vertebral body 2 in contact with the upper and lower ends thereof so as not to be slipped by the twisting or bending of the vertebral body 2. The height of each end point of the teeth 5 of the intervertebral fusion cage 1 can be the same, and the depth of the teeth 5 can be formed deeper toward the rear end, and the spacing can be made constant, so that the spacing between the vertebral bodies is constant. It is possible to easily insert in (2) and to improve the fixing force.

척추 추체간 유합케이지(1)의 톱니(5) 형태는 부벽형식(Buttress type)으로 형성할 수 있다. 또한, 상기한 척추 추체간 유합케이지(1)의 중앙에 지지대(7)를 형성하여 척추 추체간 유합케이지(1)가 파손되는 것을 방지하였다.The tooth 5 of the intervertebral vertebrae fusion cage 1 may be formed in a buttress type. In addition, by forming a support (7) in the center of the intervertebral vertebrae fusion cage (1) to prevent damage to the intervertebral vertebral fusion cage (1).

상기한 척추 추체간 유합케이지는 기존의 척추 추체간 유합케이지와 달리 상하단부위를 차단하여 골유합물이 빠져나오지 못하도록 하였으며 측단부위에 개폐장치를 부착하여 골유합물을 척추 추체간 유합케이지에 삽입이 용이하도록 하였다. Unlike the existing intervertebral fusion cages, the intervertebral fusion cages prevent the bone unions from escaping by intercepting the upper and lower ends, and attaching the switch to the lateral ends to facilitate insertion of the bone unions into the intervertebral fusion cages. It was.

또한, 이 척추 추체간 유합케이지는 골과의 유합을 촉진시키기 위하여 골이식편, 인공골, 수산화아파타이트 등을 척추 추체간 유합케이지에 삽입하여 사용할 때 상기한 것들이 빠져나오지 않고 골유합을 촉진을 향상시킬 수 있도록 금속세선 망을 척추 추체간 유합케이지의 내부에 삽입하였다.In addition, the intervertebral fusion cage can be used to insert bone grafts, artificial bones, and apatite into the intervertebral fusion cage in order to promote union with the bones, thereby improving the union. A thin wire mesh was inserted into the intervertebral fusion cage.

상기한 설명과 같이 본 발명은 척추, 특히 척추기형의 교정과 골절탈구, 척추디스크, 척추관 협착증, 종양 등의 척추체를 제거하는 수술시에 척추체 유합에 필요한 최적의 환경을 만들어주고 유합을 촉진시켜 불유합율을 감소시킬 수 있다.As described above, the present invention creates an optimal environment for vertebral union and promotes union in the operation of the vertebral body, particularly in the correction of vertebral malformations and removal of vertebral bodies such as fracture dislocations, vertebral discs, spinal canal stenosis, and tumors. Can reduce the rate.

또한, 변형이 된 분절의 교정을 도울 뿐만 아니라 교정된 상태로 유지시켜 줌으로써, 수술의 결과를 좋게 하고 향후 발생 가능한 후유증을 감소시킬 수 있다.In addition, by helping to correct the deformed segment as well as maintaining the corrected state, it is possible to improve the outcome of the surgery and reduce the possible sequelae in the future.

도 1은 본 발명에 따른 척추 추체간 유합 케이지가 적용된 상태를 도시하는 측면도,1 is a side view showing a state in which the intervertebral vertebrae fusion cage according to the present invention is applied,

도 2는 본 발명에 따른 척추 추체간 유합 케이지의 측면도,2 is a side view of the intervertebral vertebrae fusion cage according to the present invention;

도 3은 본 발명에 따른 척추 추체간 유합 케이지와 철사의 결합도.Figure 3 is a coupling of the intervertebral vertebral union fusion cage and the wire according to the invention.

(도면의 주요부분에 대한 부호의 설명)(Explanation of symbols for the main parts of the drawing)

1: 척추 추체간 유합케이지 2: 척추체1: interbody fusion cage 2: vertebral body

3: 척추 추체간 유합케이지 전단부 4: 유합촉진 구멍3: Intervertebral fusion cage front end 4: Fusion hole

5: 톱니 6: 척추 추체간 유합케이지 개폐장치5: tooth 6: intervertebral fusion cage closure

7: 지지대 8: 금속세선 망7: support 8: metal wire mesh

Claims (5)

골유합물의 이탈방지 및 용이한 삽입을 위한 개폐 장치를 갖는 척추 추체간 유합케이지에 있어서, 상기 개폐 장치는 상기 유합케이지의 일 측면에, 그 일측이 힌지의 형태로 회전가능하게 부착된 여닫이 도어의 형태로 형성되고, 상기 유합케이지 본체의 내부 중앙부에 척추 추체간 유합케이지의 파손 방지를 위한 지지대, 골유합물의 이탈을 방지하도록 막혀 있는 상하단부, 척추체로 용이하게 삽입될 수 있도록 곡면으로 된 전단부를 포함하는 척추 추체간 유합케이지.In the intervertebral vertebrae fusion cage having an opening and closing device for preventing separation and easy insertion of the bone union, the opening and closing device is in the form of a hinged door rotatably attached to one side of the fusion cage, one side of which is hinged. And a support for preventing breakage of the intervertebral vertebrae fusion cage in the inner central portion of the fusion cage body, upper and lower ends blocked to prevent separation of the bone union, and a sheared portion having a curved surface so as to be easily inserted into the vertebral body. Intervertebral fusion cage. 제 1 항에 있어서, 골과의 유합도를 향상시키기 위하여 내부에 금속세선 망을 더 구비하는 척추 추체간 유합케이지.The intervertebral vertebrae fusion cage according to claim 1, further comprising a metal wire mesh to improve the degree of union with the bone. 삭제delete 제 3 항에 있어서, 유합촉진을 위한 복수개의 구멍이 형성되어 있으며, 상기 상하단부에는 척추체에 삽입된 후 미끄러짐을 방지하기 위한 복수개의 톱니가 형성되어 있는 척추 추체간 유합케이지.4. The intervertebral vertebrae fusion cage according to claim 3, wherein a plurality of holes for promoting fusion are formed, and a plurality of teeth are formed in the upper and lower ends to prevent slipping after being inserted into the vertebral body. 삭제delete
KR10-2002-0028589A 2002-05-06 2002-05-23 Intervertebral fusion cage Expired - Fee Related KR100498755B1 (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5609635A (en) * 1988-06-28 1997-03-11 Michelson; Gary K. Lordotic interbody spinal fusion implants
JPH10243954A (en) * 1997-02-20 1998-09-14 Signus Medizintechnik Gmbh Spinal cord implant
KR200164056Y1 (en) * 1999-01-19 2000-02-15 선동윤 Cage to change disc
KR20000037716A (en) * 1998-12-02 2000-07-05 이종서 Modular Spinal Interbody Fusion Cage
KR200249309Y1 (en) * 2001-05-29 2001-11-16 주식회사 뉴엠 Intervertebral fusion cage
KR20020012330A (en) * 2000-08-07 2002-02-16 이종서 The Adjustable Body Replacement Fusion Cage

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5609635A (en) * 1988-06-28 1997-03-11 Michelson; Gary K. Lordotic interbody spinal fusion implants
JPH10243954A (en) * 1997-02-20 1998-09-14 Signus Medizintechnik Gmbh Spinal cord implant
KR20000037716A (en) * 1998-12-02 2000-07-05 이종서 Modular Spinal Interbody Fusion Cage
KR200164056Y1 (en) * 1999-01-19 2000-02-15 선동윤 Cage to change disc
KR20020012330A (en) * 2000-08-07 2002-02-16 이종서 The Adjustable Body Replacement Fusion Cage
KR200249309Y1 (en) * 2001-05-29 2001-11-16 주식회사 뉴엠 Intervertebral fusion cage

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