GUIDED RETRACTOR AND METHODS OF USE

The present invention provides methods and apparatus in which a surgical retractor (10) comprises a plurality of mechanically coupled tissue retaining walls (32, 34) that are guided into position along one or more guides previously implanted into the patient. The walls (32, 34) are preferably couple...

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Main Authors LARSON JEFFREY, BERTELE THEODORE, GREENBERG LOUIS, SCHORER SCOTT
Format Patent
LanguageEnglish
Korean
Published 07.04.2006
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Abstract The present invention provides methods and apparatus in which a surgical retractor (10) comprises a plurality of mechanically coupled tissue retaining walls (32, 34) that are guided into position along one or more guides previously implanted into the patient. The walls (32, 34) are preferably coupled by pivots (36), so that separating some of the walls (32, 34) from one another opens an operating space. There are preferably two guides (172), which are driven or screwed into the pedicles of vertebrae, or other bone. Since practical considerations will usually mean that the guides (172) are not generally parallel to one another, the guides (172) are capable of polyaxial movement with respect to the pedicles, and retractor (10) is provided with oversized channels to receive the guides (172). The channels (26) may be conveniently disposed in a frame (20), which also serves to hold lock the walls (32, 34) apart. Various convenience features are contemplated including a web (12) disposed between the walls (32, 34), which expands as the walls (32, 34) are separated. Also contemplated are projections from near the bottoms of one or more of the walls (14), which can alternatively or additionally help to hold the underlying tissue in place. 본 발명은, 외과용 견인기(10)가 사전에 환자에게 이식된 하나 이상의 가이드를 따라 제 위치로 안내되는 복수의 기계적으로 결합된 조직 보유 벽(32, 34)을 포함하는 방법 및 장치를 제공한다. 벽(32, 34)은 바람직하게는 피봇(36)에 의해 결합되어, 서로로부터의 벽(32, 34) 중 일부의 분리는 수술 공간을 개방한다. 바람직하게는 척추의 페디클 또는 다른 뼈로 삽입 또는 나사결합되는 2개의 가이드(172)가 있다. 실제적인 고려는 가이드(172)가 일반적으로 서로에 대해 평행하지 않은 것을 고려하기 때문에, 가이드(172)에는 페디클에 대하여 다축 이동할 수 있고, 견인기(10)는 가이드(172)를 수용하도록 큰 채널이 제공된다. 채널(26)은 벽(32, 34)을 이격되게 유지 고정하는 역할도 하는 프레임(20) 내에 통상적으로 배치될 수 있다. 벽(32, 34) 사이에 배치되어 벽(32, 34)이 이격됨에 따라 확장하는 웨브(12)를 포함하는 다양한 편리한 구성이 고려될 수 있다. 또한 하부 조직을 제 위치에 유지하는 것을 추가적으로 또는 다르게 도울 수 있는 하나 이상의 벽(14)으로부터 또는 이의 바닥부 부근으로부터의 돌기가 또한 고려될 수 있다.
AbstractList The present invention provides methods and apparatus in which a surgical retractor (10) comprises a plurality of mechanically coupled tissue retaining walls (32, 34) that are guided into position along one or more guides previously implanted into the patient. The walls (32, 34) are preferably coupled by pivots (36), so that separating some of the walls (32, 34) from one another opens an operating space. There are preferably two guides (172), which are driven or screwed into the pedicles of vertebrae, or other bone. Since practical considerations will usually mean that the guides (172) are not generally parallel to one another, the guides (172) are capable of polyaxial movement with respect to the pedicles, and retractor (10) is provided with oversized channels to receive the guides (172). The channels (26) may be conveniently disposed in a frame (20), which also serves to hold lock the walls (32, 34) apart. Various convenience features are contemplated including a web (12) disposed between the walls (32, 34), which expands as the walls (32, 34) are separated. Also contemplated are projections from near the bottoms of one or more of the walls (14), which can alternatively or additionally help to hold the underlying tissue in place. 본 발명은, 외과용 견인기(10)가 사전에 환자에게 이식된 하나 이상의 가이드를 따라 제 위치로 안내되는 복수의 기계적으로 결합된 조직 보유 벽(32, 34)을 포함하는 방법 및 장치를 제공한다. 벽(32, 34)은 바람직하게는 피봇(36)에 의해 결합되어, 서로로부터의 벽(32, 34) 중 일부의 분리는 수술 공간을 개방한다. 바람직하게는 척추의 페디클 또는 다른 뼈로 삽입 또는 나사결합되는 2개의 가이드(172)가 있다. 실제적인 고려는 가이드(172)가 일반적으로 서로에 대해 평행하지 않은 것을 고려하기 때문에, 가이드(172)에는 페디클에 대하여 다축 이동할 수 있고, 견인기(10)는 가이드(172)를 수용하도록 큰 채널이 제공된다. 채널(26)은 벽(32, 34)을 이격되게 유지 고정하는 역할도 하는 프레임(20) 내에 통상적으로 배치될 수 있다. 벽(32, 34) 사이에 배치되어 벽(32, 34)이 이격됨에 따라 확장하는 웨브(12)를 포함하는 다양한 편리한 구성이 고려될 수 있다. 또한 하부 조직을 제 위치에 유지하는 것을 추가적으로 또는 다르게 도울 수 있는 하나 이상의 벽(14)으로부터 또는 이의 바닥부 부근으로부터의 돌기가 또한 고려될 수 있다.
Author BERTELE THEODORE
GREENBERG LOUIS
LARSON JEFFREY
SCHORER SCOTT
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MEDICAL OR VETERINARY SCIENCE
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Title GUIDED RETRACTOR AND METHODS OF USE
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