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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0481258 (2009-06-09) |
등록번호 | US8047236 (2011-10-17) |
발명자 / 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 | 피인용 횟수 : 356 인용 특허 : 17 |
A flexible conduit for insertion into a body lumen comprises a plurality of elements coupled end to end to define a conduit lumen. A first one of the elements includes a male portion and a female portion. A second element includes a female portion having an inner surface configured to engage a male
A flexible conduit for insertion into a body lumen comprises a plurality of elements coupled end to end to define a conduit lumen. A first one of the elements includes a male portion and a female portion. A second element includes a female portion having an inner surface configured to engage a male portion of an outer surface of the first element to form a first ball joint. A third element includes a male portion, an outer surface of the male portion of the third element configured to engage an inner surface of the female portion of the first element to form a second ball joint. The male and female portions of the first element are adapted to frictionally engage the female portion of the second element and the male portion of the third element to establish a rigid connection therebetween.
The invention claimed is: 1. A flexible conduit for insertion into a body lumen, comprising:a plurality of elements coupled end to end with lumens of the elements aligned to define a conduit lumen, the plurality of elements including:a first element including a male portion and a female portion;a se
The invention claimed is: 1. A flexible conduit for insertion into a body lumen, comprising:a plurality of elements coupled end to end with lumens of the elements aligned to define a conduit lumen, the plurality of elements including:a first element including a male portion and a female portion;a second element including a female portion having an inner surface extending along a curve corresponding to a curve of the male portion of an outer surface of the first element so that, when the male portion of the first element is received within the female portion of the second element, the first and second elements form a first ball joint;a third element including a male portion, an outer surface of the male portion of the third element being curved along a shape corresponding to a curve of an inner surface of the female portion of the first element so that, when the male portion of the third element is received within the female portion of the first element, the first and third elements form a second ball and socket joint, the male and female portions of the first element being adapted to frictionally engage respectively, the female portion of the second element and the male portion of the third element to establish a rigidity of the conduit sufficient to retain its shape and absorb forces applied thereto as a flexible instrument is inserted through the conduit lumen; anda force applying mechanism received within the conduit lumen and being movable between a first retracted configuration and a second expanded configuration applying a force radially outward against the male portion of the first element to increase a frictional engagement between the male portion of the first element and the female portion of the second element and increase a stiffness of the flexible conduit.
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