Pressure sensing syringe
US4759750A · kind A · utility
51Cited by
3References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1986 |
| Grant date | Jul 26, 1988 |
| Priority date | — |
| Expiry date | Dec 22, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S116/17
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A syringe for providing a tactile signal to a person who is directing a fluid to a vein of a patient, for local anesthesia administration where a specific infusion pressure should not be exceeded, and other uses where delivery pressure is critical. A biased pressure sensitive piston is interposed between the syringe plunger and an actuating thumb pressure element. When a preset pressure is reached in the syringe body, a projection reaches the thumb to alert the administering person that the preset pressure has been reached.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.