Apparatus for medical injections
US4020836A · kind A · utility
13Cited by
7References
1Claims
0Family size
Inventor
Key dates
| Filing date | Oct 23, 1975 |
| Grant date | May 3, 1977 |
| Priority date | — |
| Expiry date | Oct 23, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S604/90
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and apparatus for the administration of medical injections. After insertion of an injection needle into a patient, a negative pressure differential is applied to the exposed end of the injection needle so that if the injection needle has been inserted into any artery or a vein, blood will be drawn up into the needle. A transparent window allows the person administering the injection to observe whether any blood has been drawn into the needle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.