Hub of arterial puncture needle
US6261263A · kind A · utility
40Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 30, 1999 |
| Grant date | Jul 17, 2001 |
| Priority date | — |
| Expiry date | Aug 30, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M25/0693
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A hub (1) of an arterial puncture needle includes a tubular and transparent viewing chamber (5) accessible to the reflux of blood, and a reserve chamber (6) which is leaktight to the ambient air and in air communication with an outlet end (5b) of the viewing chamber. The two chambers form a rigid unit with the hub and have predetermined volumes such that the blood does not reach the air reserve chamber when the systolic pressure is maximal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.