Surgery – Truss – Pad
Patent
1987-08-21
1989-04-11
Cross, E. Rollins
Surgery
Truss
Pad
604101, 604 96, A61M 2902
Patent
active
048203491
ABSTRACT:
A balloon dilatation catheter having a balloon at its distal end includes a distal segment having a collapsible outer diameter. The distal segment includes an inner shaft and a generally coaxial outer surrounding sleeve formed from a very flexible, thin wall, high-strength polymeric material. The balloon is formed integrally with the sleeve and is collapsible about the shaft together with the sleeve. The distal segment of the catheter exhibits a high degree of trackability over a guidewire through tortuous blood vessels. When in its collapsed configuration, the distal segment of the catheter defines a reduced profile which is less obstructive to blood flow through the blood vessel containing the catheter distal segment, such as a coronary artery. In a modified embodiment of the invention, the flexible thin wall sleeve extends over a greater length of the catheter and may extend to the full length of the catheter. In the modified embodiment, when the sleeve is collapsed about the inner shaft a reduced profile is defined along the length of the catheter. When contained within a guide catheter, the dilatation catheter provides for an enlarged cross-sectional flow area within the guide catheter, thus enhancing proximal dye injections and pressure measurements or, alternately, enabling the use of a smaller diameter guide catheter.
REFERENCES:
patent: 4024873 (1977-05-01), Antoshkiw
patent: 4307722 (1981-12-01), Evans
patent: 4318410 (1982-03-01), Chin
patent: 4323071 (1982-04-01), Simpson
patent: 4335723 (1982-06-01), Patel
patent: 4338942 (1982-07-01), Fogarty
patent: 4351341 (1982-09-01), Goldberg
patent: 4406656 (1983-09-01), Hattler
patent: 4444188 (1984-04-01), Bazell
patent: 4467790 (1984-08-01), Schiff
patent: 4582181 (1986-04-01), Samson
patent: 4597755 (1986-07-01), Samson
patent: 4616653 (1986-10-01), Samson
patent: 4670313 (1987-06-01), Saudagar
patent: 4706670 (1987-11-01), Andersen et al.
patent: 4715378 (1987-12-01), Pope, Jr. et al.
patent: 4733652 (1988-03-01), Kantrowitz
patent: 4771778 (1988-09-01), Mar
"USCI Gruntzig Dilaca Lo Profile II Bal&oon Dilatation Catheters", No. 1-86/5090043, 1986.
C. R. Bard Inc.
Cross E. Rollins
LandOfFree
Dilatation catheter with collapsible outer diameter does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dilatation catheter with collapsible outer diameter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dilatation catheter with collapsible outer diameter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-664707