Angioplasty method and means for performing angioplasty
US5484412A · kind A · utility
Inventor
Key dates
| Filing date | Apr 19, 1994 |
| Grant date | Jan 16, 1996 |
| Priority date | — |
| Expiry date | Apr 19, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/1052
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An angioplasty procedure wherein a balloon dilatation catheter is movably positioned within an anchoring catheter which in turn is located within a guiding catheter. Internal balloons in the anchoring catheter can be inflated to anchor it to the balloon dilatation catheter. External balloons on the anchoring catheter can be inflated to anchor it to the inside of the guiding catheter. The balloons can be selectively inflated and deflated. Other external balloons on the inner end and outer surface can be inflated to secure the anchoring catheter within the blood vessel beyond the inner end of the guiding catheter. Perforations appear in the anchor catheter to permit blood to flow inside and outside thereof. An angioplasty method whereby a conventional guide catheter is inserted into the blood vessel to a location just short of the narrowed portion of the blood vessel. The conventional guide wire, balloon dilatation catheter, and anchoring catheter are then inserted through the guiding catheter with the anchoring catheter and balloon dilatation catheter being secured together by the internal balloons on the anchor catheter. As the point of treatment in the blood vessel is approached, …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.