Catheter with medicament injection pores
US5547472A · kind A · utility
60Cited by
18References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 19, 1995 |
| Grant date | Aug 20, 1996 |
| Priority date | — |
| Expiry date | Jan 19, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/1086
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A catheter or balloon catheter includes a tube or balloon which is provided with a plurality of pores. A stimulus-responsive polymer is attached to the pores so that fluid transmission through the pores is controllable by a stimulus such as a change of pH, composition, and temperature. The catheter can administer a necessary limited amount of medicament to a locally limited site of a blood vessel only when necessary.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.