Multiple sheath catheter using multiple stages and method of use
US5944695A · kind A · utility
85Cited by
11References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1997 |
| Grant date | Aug 31, 1999 |
| Priority date | — |
| Expiry date | Sep 30, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M25/0606
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A multiple sheath catheter is provided for placing an IV catheter or other medical instrument into a blood vessel of a patient. The multiple sheath catheter includes a first stage catheter having a distal end for introducing into a blood vessel, a proximal end, and an internal lumen between the distal and proximal ends. Disposed lengthwise within the lumen of the first stage catheter is a needle for piercing a blood vessel of a patient. The device uses a small diameter needle to gain venous access, thereby reducing the probability of failure. The multiple sheath catheter also includes a second stage catheter or introducer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.