Self purging angiographic injector
US5573515A · kind A · utility
253Cited by
28References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 20, 1995 |
| Grant date | Nov 12, 1996 |
| Priority date | — |
| Expiry date | Apr 20, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S128/12
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An angiographic injector includes a syringe which is connected to a fluid reservoir through a valve which permits radiographic contrast material to be drawn from the reservoir into the syringe during a fill operation. The valve permits air to be expelled from the syringe through the valve during a purge operation, but blocks flow of contrast material from the syringe back to the fluid reservoir. During an injection, the valve blocks flow of contrast material back to the fluid reservoir while the contrast fluid is being delivered under pressure from the syringe to a patient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.