KR960704496A - 전방식 인터바디 융접장치(Anterior interbody fusion device) - Google Patents

전방식 인터바디 융접장치(Anterior interbody fusion device)

Info

Publication number
KR960704496A
KR960704496A KR1019960701853A KR19960701853A KR960704496A KR 960704496 A KR960704496 A KR 960704496A KR 1019960701853 A KR1019960701853 A KR 1019960701853A KR 19960701853 A KR19960701853 A KR 19960701853A KR 960704496 A KR960704496 A KR 960704496A
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KR
South Korea
Prior art keywords
channel
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arms
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Prior art date
Application number
KR1019960701853A
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English (en)
Inventor
코자크 제프레이
보야드 래리
Original Assignee
로버트 엠. 로드릭크
다네크 메디칼 인코포레이티드
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 로버트 엠. 로드릭크, 다네크 메디칼 인코포레이티드 filed Critical 로버트 엠. 로드릭크
Publication of KR960704496A publication Critical patent/KR960704496A/ko

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Classifications

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Abstract

본 발명의 융접장치(20)은 한쌍의 측방향 스페이셔(21)과 한쌍의 중심 스페이셔(22,23)를 포함하고, 이들 각각은 디스크 환형부에서 디스크 절제 간문부를 통한 피부관통 도입크기가 된다. 각각의 측방향 스페이셔(21)은 채널(34)은 형성하는 대향 측면(33)을 포함하고, 각각의 중심 스페이셔(22,23)은 대응하는 측방향 스페이셔(21)의 채널내에 수용되도록 형성된 대향단부에서 아암(47,57)을 포함한다. 상기 아암 및 채널은 내부디스크 공간내에서 조립되면 구성품의 분리를 방지하기 위하여 상호 잠금된다. 상기 중심 및 측방향 스페이셔의 조립체는 뼈접합 재료를 삽입하기 위하여 이들 사이에 캐비티(25)를 형성한다. 상기 중심 및 측방향 스페이셔는 뼈접합 캐비티가 가장 약하지만 혈관적으로 그리고 생물학적으로 가장 황성한 곳에 배치되고, 상기 측방향 스페이셔는 가장 강한 척추뼈 위와 디스크 환형부에 인접되게 위치될 수 있도록 형성된다.

Description

전방식 인터바디 융접장치(Anterior interbody fusion device)
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 전방식 인터바디 융접장치의 양호한 실시예를 도시하는 사시도,
제2도는 상기 척추체위에 위치된 제1도의 인터바디 융접장치를 가진 요추의 평면도,
제2A도는 상기 몸체의 뼈강도를 변화시키는 영역을 도시하는 척추체의 사시도,
제5도는 화살표 방향에서 본 5-5선을 따라 취한 제1도에 도시된 인터바디 융접장치의 평면 사시단면도.

Claims (18)

  1. 측방향 스페이셔가 내부디스크 공간내에 있을 때 인접된 척추 각각에 접촉하도록 채택된 대향 단부판면과, 채널을 형성하는 측면을 각각 구비하는 한쌍의 측방향 스페이셔와; 제1중심 스페이셔가 상기 내부디스크 공간내에 있을 때 인접된 척추 각각을 향하여 설치되고 상기 측방향 스페이셔의 대응하는 하나에서 채널내에 미끄럼가능하게 수용되도록 각각 형성된 대향 단부판 면을 가지며, 대향 단부를 부가로 구비하는 제1중심 스페이셔를 포함하는 2개의 척추사이의 내부 디스크 공간내로 도입하기 위하여 형성된 인터바디 융접장치에 있어서, 상기 측방향 스페이셔 쌍과 제1중심 스페이셔는 측방향 스페이셔의 대응하는 하나에서 상기 채널내에 결합된 제1중심 스페이셔의 대향단부로써 상기 내부디스크 공간내에서 조립되도록 상기 내부디스크 공간내로 각각 도입되는 크기인 것을 특징으로 하는 인터바디 융접장치.
  2. 제1항에 있어서, 상기 측방향 스페이셔 쌍의 각각의 단부판 면과 상기 제1중심 스페이셔의 대향단부 각각은 내부디스크 공간의 영역보다 작은 영역을 형성하는 것을 특징으로 하는 인터바디 융접장치.
  3. 제1항에 있어서, 상기 제1중심 스페이셔는 대향단부 사이의 길이로서 연장되고, 상기 길이는 제1중심 스페이셔가 측방향 스페이셔 쌍의 각각과 조립될 때 디스크 환형부에 인접되게 상기 측방향 스페이셔가 있는 크기인 것을 특징으로 하는 인터바디 융접장치.
  4. 제1항에 있어서, 인접된 척추 각각을 향하여 설치된 제2대향면과, 상기 측방향 스페이셔의 대응하는 하나에서 상기 채널내에 미끄럼 가능하게 수용되도록 형성된 제2대향 단부를 가지는 제2의 긴 중심 스페이셔를 부가로 구비하고; 상기 제2의 측방향 스페이셔가 내부디스크 공간내에서 상기 측방향 스페이셔 및 제1중심 스페이셔와 조립될 때, 캐비티는 상기 측방향 스페이셔와 제1 및 제2중심 스페이셔 각각의 측면에 의해 형성되고, 상기 캐비티는 뼈접합 재료를 도입하기 위한 크기인 것을 특징으로 하는 인터바디 융접장치.
  5. 제4항에 있어서, 상기 각각의 측방향 스페이셔의 채널은 채널길이를 구비하고; 상기 제1중심 스페이셔는 각각의 대향단부에서 형성된 한쌍의 제1아암을 구비하고, 상기 한쌍의 제1아암은 채널길이의 제1부분을 따라 연장되기 위하여 상기 측방향 스페이셔의 대응하는 하나에서 채널내에 미끄럼 가능하게 수용되며; 상기 제2중심 스페이셔는 제2대향 단부 각각에 형성된 한쌍의 제2아암을 구비하고, 상기 제2쌍의 아암은 채널길이의 남아 있는 부분을 따라 연장하기 위하여 상기 측방향 스페이셔의 대응하는 하나에서 채널내에 미끄럼 가능하게 수용 되도록 형성되며; 상기 제1쌍의 아암은 제1 및 제2중심 스페이셔 사이의 소정이 공간을 유지하여 캐비티를 형성하기 위하여 측방향 스페이셔의 대응하는 하나의 채널내에서 상기 제2쌍의 아암의 대응하는 하나와 접촉하는 것을 특징으로 하는 인터바디 융접장치.
  6. 제5항에 있어서, 상기 측방향 스페이셔의 채널은 제1 및 제2중심 스페이셔의 대응하는 제1 및 제2아암을 도입하기 위하여 상기 채널길이의 대향단부에서 채널길이 및 개구의 일단부의 단부벽을 구비하고; 상기 장치는 대응채널내에서 대응하는 제1 및 제2아암을 크램핑하기 위하여 상기 채널의 길이의 대향단부에서 크램핑 수단을 부가로 포함하고, 상기 크램핑 수단은 제1쌍의 아암에 대하여 제2쌍의 아암을 크램프하고 상기 대응채널의 단부벽에 대하여 제1쌍의 아암을 크램프하기 위하여 제2중심 스페이셔에 대향되게 설치되는 것을 특징으로 하는 인터바디 융접장치.
  7. 제6항에 있어서, 상기 각각의 측방향 스페이셔는 채널에 인접된 나사 구멍을 형성하고; 상기 크램핑 수단은 체결구가 구멍내로 나사체결될 때 제1중심 스페이셔를 결합하기 위하여 일단부에서 확대된 헤드를 가진 나사체결구를 포함하는 것을 특징으로 하는 인터바디 융접장치.
  8. 제5항에 있어서, 상기 측방향 스페이셔 각각과, 제1쌍의 아암 및 제2쌍의 아암 각각에 있는 채널은 채널길이를 따라 있는 방향과는 다른 어떤 방향에서 대응채널로부터 대응아암을 제거하는 것을 방지하기 위하여 상호 잠금 결합되도록 형성되는 것을 특징으로 하는 인터바디 융접장치.
  9. 제8항에 있어서, 상기 각 측방향 스페이셔의 채널은 비둘기 꼬리형상의 채널이고, 상기 제1 및 제2쌍의 아암 각각은 비둘기 꼬리 형상으로서 형성되는 것을 특징으로 하는 인터바디 융접장치.
  10. 제1항에 있어서, 상기 각 측방향 스페이셔의 채널은 채널길이를 구비하고; 상기 제1중심 스페이셔는 각각의 대향단부에서 긴 아암을 포함하고, 상기 아암 각각은 채널내에 미끄럼가능하게 수용되도록 형성되고 상기 채널 길이에 거의 동일한 길이를 가지는 것을 특징으로 하는 인터바디 융접장치.
  11. 제10항에 있어서, 상기 제1중심 스페이셔의 각 대향단부에서 긴 아암은 중심 스페이셔와 상기 채널의 일단부사이에 배치된 후방부와, 상기 중심 스페이셔와 채널의 대항단부 사이에 배치된 전방부를 포함하는 것을 특징으로 하는 인터바디 융접장치.
  12. 제10항에 있어서, 상기 각 측방향 스페이셔의 채널은 제1중심 스페이셔의 대향단부에서 대응아암을 도입하기 위하여 채널길이의 대향단부에서 채널길이와 개구의 일단부에서 있는 단부벽을 구비하고; 상기 장치는 채널길이의 대향단부에 있으며, 대응채널의 단부벽에 대하여 대응아암을 크램핑하기 위하여 제1중심 스페이셔에 대향되게 있는 그램핑 수단을 부가로 포함하는 것을 특징으로 하는 인터바디 융접장치.
  13. 제12항에 있어서, 상기 각 측방향 스페이셔의 채널에 인접된 나사구멍을 형성하고; 상기 크램핑 수단은 체결구가 구멍내로 나사체결될 때 제1중심 스페이셔를 결합하기 위하여 일단부에 있는 확대헤드를 가지는 나사 체결구를 포함하는 것을 특징으로 하는 인터바디 융접장치.
  14. 제10항에 있어서, 상기 각 측방향 스페이셔의 채널과 제1중심 스페이셔의 대향단부에 있는 아암은 채널 길이 방향과 다른 어떤 방향에서도 대응채널로부터 대응아암을 제거하는 것을 특징으로 하는 인터바디 융접장치.
  15. 제14항에 있어서, 상기 각 측방향 스페이셔의 채널은 비둘기 꼬리형상의 채널이고, 제1중심 스페이셔의 각 대향단부에 있는 아암은 비둘기 꼬리형상으로 형성되는 것을 특징으로 하는 인터바디 융접장치.
  16. 제1항에 있어서, 상기 각 측방향 스페이셔는 채널에 인접되 구멍을 형성하고; 상기 장치는 내부디스크 공간내에 측방향 스페이셔를 이격되게 설치하기 위한 수단을 포함하고, 상기 설치수단은 내부디스크내에 배치된 측방향 스페이셔의 구멍내에 수용될 때 환자외부로 연장되고 상기 측방향 구멍내에 제거가능하게 수용된 크기이며 상기 각 쌍의 측방향 스페이셔중 하나인 한쌍의 스프레더 로드를 포함하므로, 상기 스프레더 로드 쌍은 측방향 스페이셔를 내부디스크 공간내에서 이격되게 이동시키기 위하여 환자 외부에서 조정될 수 있는 것을 특징으로 하는 인터바디 융접장치.
  17. 제16항에 있어서, 상기 설치수단은 스프레더 바아 쌍사이에 결합된 랙과 피니언 조립체를 포함하므로 상기 랙을 따라 피니언 기어의 회전이 스프레더 바아 쌍을 이격되게 이동시키는 것을 특징으로 하는 인터바디 융접장치.
  18. 제1항에 있어서, 상기 제1중심 스페이셔는 관통된 구멍을 형성하고, 상기 구멍은 제1중심 스페이셔가 내부디스크 공간내에 배치될 때 인접된 척추를 향하여 각이진 축을 구비하며; 상기 장치는 인접된 척추를 결합하기 위하여 중심 스페이셔에서 구멍을 통하여 도입하기 위한 크기의 뼈스크류를 부가로 포함하므로, 상기 제1중심 스페이셔를 척추에 앵커하는 것을 특징으로 하는 인터바디 융접장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019960701853A 1993-10-12 1994-09-30 전방식 인터바디 융접장치(Anterior interbody fusion device) KR960704496A (ko)

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TW349009B (en) 1999-01-01
JPH09503416A (ja) 1997-04-08
US5397364A (en) 1995-03-14
CN1137232A (zh) 1996-12-04
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ZA947959B (en) 1995-05-22

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