Catheter assembly with reciprocable obturator
US5201712A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 19, 1991 |
| Grant date | Apr 13, 1993 |
| Priority date | — |
| Expiry date | Sep 19, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2025/0079
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A catheter assembly with a reciprocable obturator is disclosed which facilitates patency maintenance during intravenous therapy. The assembly includes a catheter having an elongated tubular portion defining a lumen, and an obturator assembly mounted on the catheter. The obturator assembly includes a reciprocable obturator member including an elongated obturator rod telescopically disposed within the catheter lumen. The rod is configured to cooperate with the lumen to inhibit liquid flow into the free end of the catheter. The device can be employed in conjunction with a high molecular weight, viscous fluid, in order to further inhibit ingress of liquid into the catheter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.