[특허]Endoluminal devices

W. L. Gore & Associates, Inc.

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Endoluminal devices

국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A61M-029/00
미국특허분류(USC)	606/200;
출원번호	US-0907975 (2005-04-22)
등록번호	US-8313503 (2012-11-20)
발명자 / 주소	Cully, Edward H. Nackard, K. Jason Vonesh, Michael J.
출원인 / 주소	W. L. Gore & Associates, Inc.
대리인 / 주소	Fish & Richardson P.C.
인용정보	피인용 횟수 : 20 인용 특허 : 84

초록

A seamless, self-expanding implantable device having a low profile is disclosed along with methods of making and using the same. The implantable device includes a frame cut out of a single piece of material that is formed into a three-dimensional shape. The implantable device may comprise an embolic filter, stent, or other implantable structure. The present invention also allows complicated frame structures to be easily formed from planar sheets of starting material, such as through laser cutting, stamping, photo-etching, or other cutting techniques.

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1. An endovascular device, comprising: a uni-body frame having a proximal end, a distal end and a longitudinal axis extending therebetween, said uni-body frame having at least two support members, at least two struts and at least two articulated segments, said uni-body frame circumscribing said axis and located at about the distal end;wherein the at least two support members includes a first support member and at least one secondary support member, wherein the at least one secondary support member is spaced distally from and attached to said first support member, wherein one of the at least one secondary member defines the distal end of the uni-body frame;wherein the at least two struts extend from the first support member towards said proximal end; andwherein the at least two articulated segments are located to extend longitudinally between the first support member and the at least one secondary support member; anda one piece filter media configured to collect embolic material is attached to the first support member, wherein the one piece filter media circumferentially covers said at least two support members circumscribing said axis; andthe distal end of the filter media is circumferentially disposed about a guidewire wherein the circumferentially disposed filter media further comprises at least one point of contact between the filter media and the guidewire, and a majority of the filter media extends beyond the distal end of the uni-body frame. 2. The device of claim 1, wherein at least one of the at least two support members includes at least one radiopaque marker. 3. The device of claim 1, wherein at least one of the at least two struts includes at least one radiopaque marker. 4. The device according to claim 1, wherein the one piece filter media includes a pharmacological agent. 5. The device according to claim 4, wherein said pharmacological agent is selected from the group consisting of anti-thrombotic agent, drug, and combinations thereof. 6. The device according to claim 1, wherein the one piece filter media comprises at least two layers. 7. The device according to claim 6, further comprising a pharmaceutical substance. 8. The device according to claim 1, further comprising an articulation segment on at least one of said at least two struts. 9. The device according to claim 1, wherein the filter media has a substantially windsock configuration. 10. The device according to claim 1, wherein the filter media has a substantially tapered configuration. 11. The device according to claim 1, wherein the struts are configured to be more flexible than the support members. 12. The device according to claim 11, wherein the struts have a different cross-sectional area than the support members. 13. The device of claim 1 wherein the filter media comprises expanded polytetrafluoroethylene. 14. A device, comprising: a uni-body frame having a proximal end, a distal end and a longitudinal axis extending therebetween, said uni-body frame having at least two support members, a first set of struts, and at least two articulated segments, said uni-body frame circumscribing said axis;wherein the at least two support members includes a first support member and at least one secondary support member, wherein the at least one secondary support member is spaced distally from and attached to said first support member, wherein one of the at least one secondary member defines the distal end of the uni-body frame, wherein the at least two support members are capable of expanding to a substantially similar outside diameter in order to provide a seal region against a vessel wall;wherein the first set of struts extends from the first support member towards said proximal end; andwherein the at least two articulated segments are located to extend longitudinally between the first support member and the at least one secondary support member; anda filter media including a pharmaceutical substance, wherein the filter media is circumferentially attached to one of the at least two support members, wherein said filter media circumscribes said axis and is configured to collect embolic material, and wherein the distal end of the filter media extends distally beyond the uni-body frame and is circumferentially disposed about a guidewire, wherein the circumferentially disposed filter media further comprises at least one point of contact between the filter media and the guidewire. 15. The device according to claim 4, further comprising a radio-opaque marker arranged between the at least two support members. 16. The device according to claim 14, further comprising radiopaque markers arranged on the uni-body frame. 17. The device according to claim 14, wherein the filter media comprises at least two layers. 18. The device according to claim 17, wherein a pharmaceutical substance is loaded between the two layers. 19. The device according to claim 14, wherein the filter media has a substantially parabolic configuration.

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Endoluminal devices

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