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Method of forming dual porosity PTFE tubes by extrusion of concentric preforms 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • B29C-047/06
  • B29C-055/22
출원번호 US-0459545 (1995-06-02)
발명자 / 주소
  • Calcote Robert (Phoenix AZ) Kowligi Rajagopal R. (Phoenix AZ) Wollner Stacy (Kewaskum WI)
출원인 / 주소
  • Impra, Inc. (Tempe AZ 02)
인용정보 피인용 횟수 : 45  인용 특허 : 0

초록

A dual porosity PTFE tube including an inner surface of expanded PTFE material having a first porosity and an outer surface of expanded PTFE material having a porosity different from that of the inner surface. The preferred method includes the step of forming inner and outer preformed tubular billet

대표청구항

A method of producing a dual porosity PTFE tube, comprising the steps of: a. concentrically joining a first preformed tubular billet and a second preformed tubular billets, each of the first and second preformed tubular billets comprising: i. PTFE resin particles having an average particle size grea

이 특허를 인용한 특허 (45)

  1. Venditti, James; Wolek, Howard; Wong, Alice; Sogard, David J.; Hill, Jason P.; Girton, Timothy S.; Brodeur, Christopher B., Apparatus and method for extrusion of thin-walled tubes.
  2. Venditti,James; Wolek,Howard; Wong,Alice; Sogard,David J.; Hill,Jason P.; Girton,Timothy S.; Brodeur,Christopher B., Apparatus and method for extrusion of thin-walled tubes.
  3. Kuhn, Thomas, Apparatus and method used with guidance system for feeding and suctioning.
  4. Butaric,Frank; Howat,William L.; Letendre,Robert P.; Ramer,Marc; Solovay,Kenneth S., Bilateral extension prosthesis and method of delivery.
  5. Owens, Warren D.; Hawes, William R.; Jenkins, Cary P.; Hargett, Ken D., Catheter having insertion control mechanism.
  6. Owens,Warren D.; Hawes,William R.; Jenkins,Cary P.; Hargett,Ken D., Catheter having insertion control mechanism.
  7. Dugan, Steve; Gale, David C., Coatings for controlling erosion of a substrate of an implantable medical device.
  8. Kramer-Brown, Pamela A.; Gale, David C.; Gueriguian, Vincent J.; Wang, Yunbing, Composite polymeric and metallic stent with radiopacity.
  9. Villalobos, Joaquin; Toyos, Ivan A., Delivery apparatus for a self expanding retractable stent.
  10. Butaric, Frank; Howat, William L.; Ramer, Marc; Solovay, Kenneth S, Extension prosthesis for an arterial repair.
  11. Bogert, David L., Extremely thin-walled ePTFE.
  12. Farrar, David J., Flared coronary artery bypass grafts.
  13. Casanova, Michael; Pathak, Chandrashekhar Prabhakar, Grafts and stent grafts having a radiopaque marker.
  14. Casanova, R. Michael; Pathak, Chandrashekhar P., Grafts and stent grafts having a radiopaque marker.
  15. Sogard, David J.; Hill, Jason P.; Girton, Timothy S.; Brodeur, Christopher B., Green fluoropolymer tube and endovascular prosthesis formed using same.
  16. Cherok, Dennis; Eldridge, Stephen N.; Darois, Roger E.; Devlin, Patrick J.; Fenton, Matthew R.; Ford, Steven Palmer; Tessier, Philip A., Implantable prosthesis.
  17. Eldridge, Stephen N.; Darois, Roger, Implantable prosthesis.
  18. Ranucci, Debra J.; Hamlin, Tami L.; Tessier, Philip A.; Staudenmeier, Marianne; Tomlin, Damian H., Implantable prosthesis.
  19. Yan, John Y., Medicated porous metal prosthesis.
  20. Yan, John Y., Medicated porous metal prosthesis and a method of making the same.
  21. Marin, Michael L.; Marin, Ralph, Method and apparatus concerning bypass grafts.
  22. Kuhn, Thomas, Method for electromagnetic guidance of feeding and suctioning tube assembly.
  23. Peter T. Keith ; Thomas V. Ressemann, Method for joining grafts in a common body passageway.
  24. Davila Luis A. ; Wilson David, Method for making a self-expanding stent-graft.
  25. Johnson Michael W., Method of forming a stent.
  26. Gale, David C.; Huang, Bin; Capek, John M; Yan, John Y.; Dehnad, Houdin, Polymer and metal composite implantable medical devices.
  27. Johnson Michael W., Porous stent drug delivery system.
  28. Davila Luis A. ; Wilson David, Self-expanding stent-graft.
  29. Edwin, Tarun J.; Abbott, Jamie; Cole, Heidi R.; Pathak, Chandrashekhar P.; Bogert, David L.; Elton, Richard; Brown, Fitzroy; Shahriari, Kereshmeh, Self-sealing PTFE graft with kink resistance.
  30. Edwin, Tarun J.; Abbott, Jamie; Cole, Heidi R.; Pathak, Chandrashekhar P.; Bogert, David L.; Elton, Richard; Brown, Fitzroy; Shahriari, Kereshmeh, Self-sealing PTFE graft with kink resistance.
  31. Butaric,Frank; Ng,Bill K.; Ramer,Marc; Stoeckel,Dieter; Mast,Gregory; Davila,Luis A.; Solovay,Kenneth S., Stent for use in a stent graft.
  32. Butaric, Frank; Fayngold, Zevulen; Koch, Durmus; Ramer, Marc Lewis, Stent graft having a pleated graft member.
  33. Butaric, Frank; Fayngold, Zevulen; Koch, Durmus; Ramer, Marc Lewis, Stent graft having a pleated graft member.
  34. Kenneth S. Solovay, Stent graft having improved attachment within a body vessel.
  35. Landau,George D.; Ramer,Marc; Solovay,Kenneth S., Stent graft with branch leg.
  36. DePalma,Donald F.; Dwyer,Clifford J.; Letendre,Robert P., Supra-renal anchoring prosthesis.
  37. Landau, George D.; Letendre, Robert P.; Solovay, Kenneth S., Supra-renal prosthesis and renal artery bypass.
  38. DePalma,Donald F.; Dwyer,Clifford J.; Letendre,Robert P.; Solovay,Kenneth S., Thoracic aneurysm repair prosthesis and system.
  39. Shaughnessy, Michael C.; Platt, David K.; Purnell, Shawn G.; Nassif, George A.; Smith, Andrew M. L., Tubing assembly and signal generator placement control device and method for use with catheter guidance systems.
  40. Shaughnessy, Michael C.; Platt, David K.; Purnell, Shawn G.; Nassif, George A.; Smith, Andrew M. L., Tubing assembly and signal generator placement control device and method for use with catheter guidance systems.
  41. Shaughnessy, Michael C.; Platt, David K.; Purnell, Shawn G.; Nassif, George A.; Smith, Andrew M. L., Tubing assembly and signal generator placement control device and method for use with catheter guidance systems.
  42. Shaughnessy, Michael C.; Platt, David K.; Purnell, Shawn G.; Nassif, George A.; Smith, Andrew M. L., Tubing assembly and signal generator placement control device and method for use with catheter guidance systems.
  43. Bogert, David L.; Abbott, Jamie, Vascular graft with kink resistance after clamping.
  44. Bogert, David L.; Abbott, Jamie, Vascular graft with kink resistance after clamping.
  45. Pathak, Chandrashekhar P., Vascular grafts with multiple channels and methods for making.
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