Needle catheter
US4052989A · kind A · utility
61Cited by
14References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 30, 1975 |
| Grant date | Oct 11, 1977 |
| Priority date | — |
| Expiry date | Oct 30, 1995 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M25/0606
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The disclosure is that of an invention directed to a catheter that includes an internal, distally projecting, proximally removable, puncture needle, thus enabling the catheter to be introduced into a vessel of an animate being without first having to use a sharpened cannula or split needle. A sight zone adjacent the distal end is provided to visually observe blood flow as an indication of proper and accurate insertion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.