Material for through the needle catheter
US5135501A · kind A · utility
12Cited by
16References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 6, 1990 |
| Grant date | Aug 4, 1992 |
| Priority date | — |
| Expiry date | Dec 6, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M25/0662
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A through the needle catheter is provided where the needle is splittable after removal and the catheter material is formed from an extremely hydrophilic polymer. Upon removal of the needle, the catheter expands with contact to water and other aqueous solutions, such as blood or intravenous dosages. Upon expansion, the outer diameter of the catheter tube seals the tube within the body tissue preventing leakage from the body tissue around the tube. Also, the inner diameter of the catheter tube expands to allow higher infustion flow rates of intravenous fluids into the body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.