[특허]Multilayer liquid absorption and deformation devices

[미국특허] Multilayer liquid absorption and deformation devices 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A61F-002/06
출원번호	US-0609584 (2000-06-30)
발명자 / 주소	Yang, Dachuan Wang, Lixiao
출원인 / 주소	SciMed Life Systems, Inc.
대리인 / 주소	Vidas, Arrett & Steinkraus
인용정보	피인용 횟수 : 9 인용 특허 : 28

초록 ▼

A multilayer device comprised of at least one layer of material which is capable of absorbing liquid to thereby increase the volume of the layer, i.e., liquid swellable, and when bound to at least one non-absorbing or lesser absorbing layer of material causes deformation of the device upon liquid ab

대표청구항 ▼

1. A multilayer polymeric device in the form of a stent comprised of at least two superimposed layers formed into a generally cylindrical shape, one layer being liquid swellable, the other being less so, and wherein the liquid swellable layer forms an outer layer of the device, the device shrinking in response to liquid absorption. 2. The device of claim 1 wherein the liquid swellable layer and the other layer are formed of biodegradable polymeric material. 3. A multilayer polymeric device comprised of at least two superimposed layers formed into a generally cylindrical shape, one layer being liquid swellable, the other being less so, the liquid swellable layer and the other layer formed of the same polymeric composition and the liquid swellable layer including particles of water swellable material, the liquid swellable layer forming an outer layer of the device, the device shrinking in response to liquid absorption. 4. The device of claim 1 wherein the liquid swellable layer is water absorbable. 5. The polymeric device of claim form 1 in the form of a sleeve. 6. The device of claim 1 in the form of a rolled up sheet. 7. The device of claim 1 in the form of a closed cylinder. 8. The device of claim 1 wherein the other layer is metallic. 9. The device of claim 1 wherein the other layer is a vapor deposited layer on the one layer. 10. The device of claim 1 in which one of the layers carries a drug to be released. 11. The multilayer polymeric device of claim 1 in the form of a sleeve configured for implantation in the body wherein the sleeve shrinks in response to liquid absorption. 12. The multilayer polymeric device of claim 11 wherein the other layer forms an innermost layer of the sleeve. 13. The multilayer polymeric device of claim 11 wherein the one layer is polymeric and the other layer is polymeric. 14. The multilayer polymeric device of claim 11 including a metallic layer. 15. The multilayer polymeric device of claim 11 wherein the one layer is water swellable and the other layer is less water swellable than the other layer. 16. The multilayer polymeric device of claim 1 in the form of a tube configured for implantation in the body, the tube having an outer diameter and inner diameter, the superimposed layers arranged such that the inner diameter of the tube changes in response to liquid absorption.

이 특허에 인용된 특허 (28) 인용/피인용 타임라인 분석

Kubo Yoshihiko (Asahikawa JPX) Arai Takashi (Sapporo JPX) Nakajima Susumu (Asahikawa JPX) Maeda Tomiyo (Asahikawa JPX) Tsujikawa Hajime (Otsu JPX), Artificial tubular organ.
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Buscemi Paul J. (Long Lake MN) Stejskal Elizabeth A. (St. Paul MN) Palme ; II Donald F. (Dayton MN) Wang Lixiao (St. Paul MN), Biodegradable drug delivery vascular stent.
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Buscemi Paul J. (Long Lake MN) Stejskal Elizabeth A. (St. Paul MN) Palme ; II Donald F. (Dayton MN) Wang Lixiao (St. Paul MN), Biodegradable drug delivery vascular stent.
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Joh Yasushi (Yokohama JPX), Compositions having antithrombogenic properties and blood contact medical devices using the same.
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Bley Robert S. (Menlo Park CA) Van Bladel Kevin H. (Mountain View CA) Thomas Joseph R. (San Carlos CA), Covered expanding mesh stent.
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Lambert James M. (Centerville OH) Solomon Donald D. (Spring Valley OH) Rhodes Delmer R. (Centerville OH), Expandable catheter having hydrophobic surface.
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Glastra Hendrik (Enschede NLX), Expandable hollow sleeve for the local support and/or reinforcement of a body vessel, and method for the fabrication the.
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Froix Michael (3433 Woodstock La. Mountain View CA 94040), Expandable polymeric stent with memory and delivery apparatus and method.
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Silvestrini Thomas A. (East Lyme CT), Hydrophilic stent.
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Tower Allen J. (North Lawrence NY), Impermeable expandable intravascular stent.
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Kurumatani Hajimu (Kanagawa JPX) Kataoka Hiroshi (Kanagawa JPX) Yamada Kyoko (Kanagawa JPX), Implantation materials.
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Turk Rodney E. (West Bloomfield MI), Intraluminal stenting graft.
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Buirge Andrew W., Intravascular stent pump.
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March Keith L. (Carmel IN) Hathaway David R. (Indianapolis IN) Wilensky Robert L. (Carmel IN), Method and apparatus for intravascular drug delivery.
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Froix Michael (3433 Woodstock La. Mountain View CA 94040), Method of using expandable polymeric stent with memory.
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Walker Jack M. (Portola Valley CA) Thomas Joseph R. (Fremont CA), Multi-layer cannula structure.
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Hamlin Robert N., Multilayer catheter balloon.
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Hamlin Robert N. (Stillwater MN), Multilayer extrusion of angioplasty balloons.
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Yang Dachuan ; Wang Lixiao, Multilayer liquid absorption and deformation devices.
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Eury Robert P. (Cupertino CA), Multilayered biodegradable stent and method of manufacture.
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Buscemi Paul J. (Long Lake MN) Buirge Andrew W. (Minneapolis MN) Bilge Fertac (Arden Hills MN), Polymerization angioplasty balloon implant device.
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Gould Francis E. (Princeton NJ) Johnston Christian W. (Neshanic Station NJ), Polyurethane polyene compositions.
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Atlas Sheldon M. (211 Central Park West New York NY 10024), Process for producing a shaped article, such as fiber composed of a hydrophobic polymer and a hydrophilic polymer.
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Tihon Claude (Eden Prairie MN) Burton John H. (Minnetonka MN) Staehle Bradford G. (Minnetonka MN) Mikulich Michael A. (La Conversion CHX), Resectable self-expanding stent.
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Griffis Patrick D. (Indianapolis IN), Semiconductor apparatus with integral heat sink tab.
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Balbierz Daniel J. (San Carlos CA) Walker Jack M. (Portola Valley CA) Thomas Joseph R. (San Carlos CA) Bley Robert S. (Menlo Park CA), Softening expanding ureteral stent.
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Wehl Glenn E. (North Canton OH), Thermostat.
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Errede Louis A. (North Oaks MN) Stoesz James D. (St. Paul MN) Upton Jenny (Bridgend GB7), Water-swellable composite sheet of microfibers of PTFE and hydrophilic absorptive particles.
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이 특허를 인용한 특허 (9) 인용/피인용 타임라인 분석

Krueger, Katie; Martins, Harold M., Anti-obesity diverter structure.
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Krueger, Katie; Martins, Harold M., Anti-obesity diverter structure.
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Houser, Russell A.; Hare, William D., Arteriotomy closure devices and techniques.
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Houser, Russell A., Compressible, deformable, or deflectable tissue closure devices and method of manufacture.
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Tyler, Thomas D., Device and method for incremental correction of sight disorders and occular diseases.
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Ting, Yuan-Ping R.; Porter, Simon J.; Del Priore, Alex V., Property films from renewable polymers.
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Tan-Malecki, Francisca; Clerc, Claude O., Shape memory tubular stent with grooves.
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Houser, Russell A.; Bower, John Hunter; Do, Paul L., Tissue closure devices, device and systems for delivery, kits and methods therefor.
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Houser, Russell A., Vascular closure devices, systems, and methods of use.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Multilayer liquid absorption and deformation devices 원문보기