Balloon dilatation catheter provided with soft coating
US9199068B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 14, 2011 |
| Grant date | Dec 1, 2015 |
| Priority date | — |
| Expiry date | Jul 17, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/1093
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention relates to technical field of cardiac medical instruments, and more particularly to a balloon dilatation catheter provided with soft coating tip. In the balloon dilatation catheter provided with soft coating tip of the present invention, the balloon dilatation catheter comprises a balloon, and inner catheter. A distal end of the balloon at a terminal end of the inner catheter extends outward to form a catheter tip with taper inner cavity. A tip coating layer made of a material which is softer than a material of the balloon is coated on the catheter tip. The material of the balloon generally selects a relatively hard material. The distal end of the balloon extends outward to form a catheter tip. The material forming the inner cavity is harder, so that the inner layer the tip with greater hardness together with the inner hydrophilic coating layer can effectively reduce the occurrence of the dead lock toward the guide wire, so as to ensure the unhindered operation of a surgery and anti reduce the occurrence of medic it accidents. When in a operation with a tip coating layer made of a material which is softer than a material of the balloon is coated on the cathete…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.