IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0192981
(2002-07-11)
|
발명자
/ 주소 |
- Callol, Joseph R.
- Brandt, Brian D.
- Matin, Nazanine
- Valencia, Hans F.
- Wilson, W. Stan
|
출원인 / 주소 |
- Advanced Cardiovascular Systems, Inc.
|
대리인 / 주소 |
Fulwider Patton Lee & Utecht, LLP
|
인용정보 |
피인용 횟수 :
124 인용 특허 :
142 |
초록
▼
The present invention provides for an improved stent design and stent delivery catheter assembly for repairing a main vessel and a side branch vessel forming a bifurcation. The present invention includes a trap door stent design, a stent delivery catheter assembly, an apparatus for crimping the sten
The present invention provides for an improved stent design and stent delivery catheter assembly for repairing a main vessel and a side branch vessel forming a bifurcation. The present invention includes a trap door stent design, a stent delivery catheter assembly, an apparatus for crimping the stent and the method for crimping the stent onto the catheter assembly, and the method for delivering and implanting the stent in a bifurcated vessel. More particularly, the invention relates to a stent having rings aligned along a common longitudinal axis and connected by links, where the stent has a proximal section, a distal section and a central section. The number of rings and the expanded diameter of the sections is varied to create a "trap door" capable of expanding to a slightly larger diameter than the proximal section and distal section of the stent. The stent is implanted at a bifurcation so that the proximal section and distal section are in the main vessel, and the central section covers at least a portion of the opening to the side branch vessel. A second stent can be implanted in the side branch vessel and abut the expanded central section to provide full coverage of the bifurcated area in the main vessel and the side branch vessel.
대표청구항
▼
The present invention provides for an improved stent design and stent delivery catheter assembly for repairing a main vessel and a side branch vessel forming a bifurcation. The present invention includes a trap door stent design, a stent delivery catheter assembly, an apparatus for crimping the sten
The present invention provides for an improved stent design and stent delivery catheter assembly for repairing a main vessel and a side branch vessel forming a bifurcation. The present invention includes a trap door stent design, a stent delivery catheter assembly, an apparatus for crimping the stent and the method for crimping the stent onto the catheter assembly, and the method for delivering and implanting the stent in a bifurcated vessel. More particularly, the invention relates to a stent having rings aligned along a common longitudinal axis and connected by links, where the stent has a proximal section, a distal section and a central section. The number of rings and the expanded diameter of the sections is varied to create a "trap door" capable of expanding to a slightly larger diameter than the proximal section and distal section of the stent. The stent is implanted at a bifurcation so that the proximal section and distal section are in the main vessel, and the central section covers at least a portion of the opening to the side branch vessel. A second stent can be implanted in the side branch vessel and abut the expanded central section to provide full coverage of the bifurcated area in the main vessel and the side branch vessel. visions on Dialysis Access Failure, ASAIO Journal 1992, pp. M524-M527. Kenneth S. Kleinman, InGraft Velocimetry: A New Technique to Detect Haodialysis Graft Flow and Venous Stenosis, p. 15 (Date Unknown). Nikolai M. Krivitski, et al., Development of a Method for Measuring Hemodialysis Access Flow: From Idea to Robust Technology, Seminars in Dialysis, Mar.-Apr. 1998, vol. 11, No. 2, pp. 124-130. Marla Paun et al., New Ultrasound Approaches to Dialysis Access Monitoring, American Journal of Kidney Diseases, vol. 35, No. 3, Mar. 2000, pp. 477-481. Keen, M. Preisig, P., and Gotch F. (1987) Non-invasive Quantitative Measurement of Hemodialysis Access Graft (HG) Flow. Abstr. International Congress of Nephrology, p. 148. Marica Lynne Keen, Evaluation of Blood Flow in Vascular Access Grafts Using The Dopplyer Ultrasonic Flow Detector, University of California, San Francisco, Dec. 31, 1985. Erjun Wang et al., Predictive Value of Access Blood Flow in Detecting Access Thrombosis, ASAIO Journal 1998, pp. M555-M558. Thomas A. Depner et al., Pressure Effects on Roller Pump Blood Flow During Hemodialysis, ASAIO Journal 1990, pp. M456-M459. Anatole Besarab et al., The Relationship of Recirculation to Access Blood Flow, American Journal of Kidney Diseases, vol. 29, No. 2 (Feb.), 1997, pp. 223-229. Kevin L. Sullivan et al., Hemodynamics of Failing Dialysis Grafts, Radiology, Mar. 1993, pp. 867-872. ure monitoring device in accordance with claim 12, wherein the temperature monitoring member extends from the cryo therapy apparatus at an angle. 14. The temperature monitoring device in accordance with claim 13, wherein the angle is about 90°. 15. The temperature monitoring device in accordance with claim 13, wherein the angle is acute. 16. The temperature monitoring device in accordance with claim 13, wherein the angle is obtuse. 17. A temperature monitoring device for minimally invasive medical treatment, comprising: a cryo therapy apparatus; a tubular member coupled to the cryo therapy apparatus; and a temperature monitoring member coupled to the tubular member and comprising a retractable needle slidably disposed within the lumen of the tubular member. 18. The temperature monitoring device according to claim 17, wherein the retractable needle further comprises a marker band. 19. A temperature monitoring device for minimally invasive medical treatment, comprising: a cryo therapy apparatus; a tubular member coupled to the cryo therapy apparatus; and a temperature monitoring member coupled to the tubular member, wherein the temperature monitoring member comprises an ultrasound transmitter. 20. A temperature monitoring device for minimally invasive medical treatment, comprising: a cryo therapy apparatus; a tubular member coupled to the cryo therapy apparatus; and a temperature monitoring member coupled to the tubular member wherein the temperature monitoring member comprises an expandable stent having a plurality of thermal spikes. 21. The temperature monitoring device according to claim 20, wherein the stent comprises nickel-titanium alloy. e of said coupling member. 6. The spine fixing device as defined in claim 1, wherein said two extension arms extend from the hooked seat in the same direction at an interval, and said two fastening rods extend from locations opposite to the two extension arms.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.