최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Edison 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0518514 (2014-10-20) |
등록번호 | US-9622735 (2017-04-18) |
발명자 / 주소 |
|
출원인 / 주소 |
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대리인 / 주소 |
|
인용정보 | 피인용 횟수 : 1 인용 특허 : 392 |
A surgical access system for accessing a surgical target site within a spine includes a retractor and an elongated element. The refractor has a closed configuration defining a lumen with an internal circumference, and an open configuration in which the internal circumference, at least at the distal
A surgical access system for accessing a surgical target site within a spine includes a retractor and an elongated element. The refractor has a closed configuration defining a lumen with an internal circumference, and an open configuration in which the internal circumference, at least at the distal end of the retractor, is enlarged relative to said closed configuration. The open configuration creates and maintains an operative corridor to said target site. The elongated element is releasably coupled to an interior wall of the retractor and has an extension extending distal of the distal end of the retractor into the surgical target site. When coupled to the retractor, the elongated element covers a body structure at the target site without blocking access to the operative corridor.
1. A surgical access system or accessing a surgical target site within a spine, comprising: a retractor having a distal end and a proximal end and a longitudinal axis extending therebetween, the retractor including at least one retraction element, the retraction element having a generally concave in
1. A surgical access system or accessing a surgical target site within a spine, comprising: a retractor having a distal end and a proximal end and a longitudinal axis extending therebetween, the retractor including at least one retraction element, the retraction element having a generally concave inner face and a generally convex exterior face, the retraction element having a closed configuration defining a lumen having an internal dimension transverse to the longitudinal axis, and an open configuration in which the internal dimension, at least at the distal end, is enlarged relative to said closed configuration, the open configuration creating and maintaining an operative corridor to said target site with a field of view, wherein the field of view is at least substantially the same as that of the internal dimension of the retraction element; andan elongated element adapted to be movably coupled to an interior wall of the retractor, wherein the elongated element is formed of a single, monolithic structure, wherein the elongated element is configured such that when movably coupled to the retractor, the elongated element creates an extension extending distal of a distal end of the retractor, the elongated element configured to cover a body structure at the target site without substantially reducing the field of view through the retractor and without blocking access to the operative corridor for insertion of additional surgical instruments through the retractor to the target site. 2. The surgical access system of claim 1, wherein the elongated element slideably engages the retractor. 3. The surgical access system of claim 1, wherein the elongated element is translatable relative to the retractor, along the longitudinal axis. 4. The surgical access system of claim 1, wherein the elongated element is releasable from the retractor. 5. The surgical access system of claim 1, wherein the extension is configured to be disposed at least partially into a space between first and second vertebrae. 6. The surgical access system of claim 1, wherein the retractor defines a fully enclosed lumen. 7. The surgical access system of claim 1, wherein the elongated element is configured to guide insertion of an implant between first and second vertebrae at the target site. 8. The surgical access system of claim 1, wherein the elongated element is configured to be coupled to the retractor in either the closed or open configuration. 9. A system for forming an operating corridor to access a spinal surgical target site, comprising: a retractor having a distal end and a proximal end and including at least one retraction element, the retraction element being expandable from a closed configuration defining a lumen having an internal dimension, to an open configuration in which the internal dimension, at least at the distal end, is enlarged relative to said closed configuration, the open configuration creating and maintaining the operating corridor to said target site with a field of view, wherein the field of view is at least substantially the same as that of the internal dimension of the retraction element; andan elongated element movably engageable to an interior wall of the retractor such that the elongated element is mounted within the lumen and a distal portion of the elongated element is configured to movably extend distally from the distal end of the retractor into the target site, wherein the elongated element and the distal portion are formed of a single, monolithic structure, wherein the elongated element is configured such that when mounted to the retractor, the elongated element covers a body structure at the target site without substantially reducing the field of view through the retractor. 10. The system of claim 9, wherein the elongated element is configured to guide insertion of an implant between first and second vertebrae at the target site. 11. The system of claim 9, wherein the distal portion of the elongated element is configured to be at least partially inserted between adjacent vertebrae at the target site. 12. The system of claim 9, wherein the elongated element slideably engages the retractor. 13. The system of claim 9, wherein the elongated element is translatable relative to the retractor, along a longitudinal axis of the retractor. 14. The system of claim 9, wherein the elongated element is releasable from the retractor. 15. The system of claim 9, wherein the retractor defines a fully enclosed lumen. 16. The system of claim 9, wherein the elongated element is configured to be coupled to the retractor before or after the retractor is expanded. 17. A method of accessing a surgical target site within a spine, comprising: inserting a retractor in a closed configuration through an incision and positioning a distal end of the retractor at the target site, the retractor including at least one retraction element, the retraction element being expandable from the closed configuration defining a lumen having an internal dimension, to an open configuration in which the internal dimension, at least at the distal end, is enlarged relative to said closed configuration, the open configuration creating and maintaining an operating corridor to said target site with a field of view, wherein the field of view is at least substantially the same as that of the internal dimension of the retraction element; andinserting an elongated element into the retractor and releasably engaging the elongated element to an interior wall of the retractor to mount the elongated element within the lumen with a distal portion of the elongated element configured to movably extend distally from the distal end of the retractor into the target site, wherein the elongated element and the distal portion are formed of a single, monolithic structure, wherein the elongated element is configured such that when mounted to the retractor, the elongated element covers a body structure at the target site without substantially reducing the field of view through the retractor and without blocking access to the operating corridor such that additional surgical instruments can be inserted through the retractor to the target site. 18. The method of claim 17, further comprising expanding the retraction element from the closed configuration to the open configuration. 19. The method of claim 18, wherein expanding the retraction element is performed before inserting the elongated element into the retractor. 20. The method of claim 17, wherein inserting the elongated element into the retractor includes translating the elongated element relative to the retractor, within the lumen and along a longitudinal axis of the retractor, thereby adjusting a length of the distal portion of the elongated element that extends distally from the distal end of the retractor.
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