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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0881692 (1997-06-24) |
발명자 / 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 | 피인용 횟수 : 405 인용 특허 : 110 |
An externally guidable intervertebral disc apparatus manipulates tissue at a selected location of an intervertebral disc. The apparatus comprises a catheter having a distal end, a proximal end and a longitudinal axis, the catheter having an intradiscal section at the distal end of the catheter, the
An externally guidable intervertebral disc apparatus manipulates tissue at a selected location of an intervertebral disc. The apparatus comprises a catheter having a distal end, a proximal end and a longitudinal axis, the catheter having an intradiscal section at the distal end of the catheter, the intradiscal section being extendible into the disc. The intradiscal section has sufficient rigidity to be advanceable through a nucleus pulposus and around an inner wall of an annulus fibrosus under a force applied longitudinally to the proximal end, sufficient flexibility in a direction of a disc plane to be compliant with the inner wall, but insufficient penetration ability to be advanceable out through the annulus fibrosus under the force. The apparatus also has an electromagnetic energy device located at the intradiscal section. Methods of using the apparatus are also provided.
[ What is claimed is:] [1.] An externally guidable intervertebral disc apparatus comprising:a proximal end for externally guiding a distal end of the apparatus within an intervertebral disc;a self-navigating intradiscal section adjacent a distal end of the apparatus which navigates itself adjacent a
[ What is claimed is:] [1.] An externally guidable intervertebral disc apparatus comprising:a proximal end for externally guiding a distal end of the apparatus within an intervertebral disc;a self-navigating intradiscal section adjacent a distal end of the apparatus which navigates itself adjacent an inner wall of an annulus of the disc when the apparatus is extended into an intervertebral disc, the intradiscal section having (a) sufficient rigidity to be advanceable through a nucleus pulposus and around the inner wall of an annulus fibrosus under a force applied longitudinally to the proximal end of the apparatus, (b) insufficient penetration ability to be advanceable out through the annulus fibrosus under the applied force, and (c) sufficient flexibility in a direction of a disc plane to be compliant with the inner wall; andan electromagnetic energy device incorporated into the apparatus adjacent the intradiscal section.
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