IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
|
| 국제특허분류(IPC7판) |
|
| 출원번호 |
US-0681366
(2001-03-26)
|
|
발명자
/ 주소 |
|
| 출원인 / 주소 |
|
| 대리인 / 주소 |
Lundeen, Daniel N.Lundeen & Dickinson LLP
|
| 인용정보 |
피인용 횟수 :
226 인용 특허 :
28 |
초록
▼
Disclosed is an instrument, valve prosthesis and procedure for the minimally invasive implantation of a sutureless anti-reflux valve in a patient for the treatment of gastroesophageal reflux disease. Self-anchoring or stapleable one-way anti-reflux valve prostheses are provided, which may be implant
Disclosed is an instrument, valve prosthesis and procedure for the minimally invasive implantation of a sutureless anti-reflux valve in a patient for the treatment of gastroesophageal reflux disease. Self-anchoring or stapleable one-way anti-reflux valve prostheses are provided, which may be implanted proximate a patient's gastroesophageal junction without open or laparoscopic surgery. An instrument for the peroral insertion, positioning and fixing of the valve prosthesis to the tissue of the esophagus is described for the implantation of either the self-anchoring or stapleable prosthesis.
대표청구항
▼
Disclosed is an instrument, valve prosthesis and procedure for the minimally invasive implantation of a sutureless anti-reflux valve in a patient for the treatment of gastroesophageal reflux disease. Self-anchoring or stapleable one-way anti-reflux valve prostheses are provided, which may be implant
Disclosed is an instrument, valve prosthesis and procedure for the minimally invasive implantation of a sutureless anti-reflux valve in a patient for the treatment of gastroesophageal reflux disease. Self-anchoring or stapleable one-way anti-reflux valve prostheses are provided, which may be implanted proximate a patient's gastroesophageal junction without open or laparoscopic surgery. An instrument for the peroral insertion, positioning and fixing of the valve prosthesis to the tissue of the esophagus is described for the implantation of either the self-anchoring or stapleable prosthesis. m is disposed within a chamber in the housing. 4. The instrument of claim 3, wherein the scattering medium further comprises a polymeric material having light scattering particles incorporated therein. 5. The instrument of claim 3, wherein the scattering medium has a greater refractive index than the housing. 6. The instrument of claim 1, further comprising a handle substantially coaxial the light diffusing element. 7. The instrument of claim 1, wherein the light diffusing element is in the shape of an open loop so as to allow the loop to be placed around or within a pulmonary vein or artery. 8. The instrument of claim 7, wherein the diameter of the loop is between 10 and 50mm. 9. The instrument of claim 7, wherein the width of the diffusing element is between 1 and 5 mm. 10. The instrument of claim 2, wherein the housing comprises a fluorocarbon polmer. 11. The instrument of claim 4, wherein the light scattering particles are chosen from the group consisting of alumina, silica, and titania compounds and mixtures thereof. 12. The instrument of claim 2, wherein the tubular housing further comprises a distal reflective surface. 13. The instrument of claim 12, wherein the reflective surface comprises a mirror coated surface. 14. The instrument of claim 12, wherein radiation propagating through the fiber enters the scattering medium and a portion of the radiation is scattered outward through the housing, and another portion passes through the scattering medium and is reflected by the reflective surface for retransmission through the scattering medium. 15. The instrument of claim 14, wherein the scattering medium and the reflective end surface interact to provide a substantially uniform axial distribution of radiation over the length of the housing. 16. The instrument of claim 2, wherein the tubular housing is partially coated with a reflective surface substantially diametrically opposed to a target ablation site. 17. The instrument of claim 16, wherein the reflective surface comprises a mirror coated surface. 18. The instrument of claim 16, wherein the reflective surface is gold. 19. The instrument of claim 16, wherein the scattering medium and the reflective surface interact to provide a substantially uniform axial distribution of radiation over the length of the housing to a target ablation site. 20. A hand held cardiac ablation instrument comprising: a slidably disposed light transmitting optical fiber; a housing in the shape of an open toroidal loop having a first end adapted to receive the slidably disposed light transmitting optical fiber; and at least one diffuser chamber coupled to the fiber within the housing. 21. The instrument of claim 20, wherein the diffuser chamber comprises light scattering medium disposed within the housing and coupled to the slidably disposed light transmitting optical fiber. 22. The instrument of claim 20, wherein the scattering medium further comprises a polymeric material having light scattering particles incorporated therein. 23. The instrument of claim 20, wherein the light scattering particles are chosen from the group consisting of alumina, silica, and titania compounds and mixtures thereof. 24. The instrument of claim 20, wherein the housing further comprises a second end with a reflective surface. 25. The instrument of claim 24, wherein the reflective surface comprises a mirror coated surface. 26. The instrument of claim 20, wherein the tubular housing is partially coated with a reflective surface substantially diametrically opposed to a target ablation site. 27. The instrument of claim 26, wherein the reflective surface comprises a mirror coated surface. 28. The instrument of claim 26, wherein the reflective surface is gold. 29. The instrument of claim 20, wherein the scattering medium and the reflective surface interact to provide a substantially uniform axial distribution of radiation over the length of the housing to a target ablation site. 30. A method of ablating cardiac tiss
※ AI-Helper는 부적절한 답변을 할 수 있습니다.