Releasable microcapsules on balloon catheters
US5893840A · kind A · utility
307Cited by
51References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 24, 1996 |
| Grant date | Apr 13, 1999 |
| Priority date | — |
| Expiry date | Apr 24, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/1086
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Balloon catheters are prepared to include body affecting chemicals within microcapsules on the exterior of the balloon either alone or with a stent. The coating releases from the balloon when the balloon is inflated into contact with the lumen to be treated. The device provides accurate placement of the dosage required at the location in need of treatment. A sheath may be employed over the balloon and microcapsules to prevent the microcapsules from being rubbed off during delivery through a body lumen. The catheters are especially useful in balloon angioplasty procedures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.