Fluid injection device
US6520937B2 · kind B2 · utility
121Cited by
43References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2000 |
| Grant date | Feb 18, 2003 |
| Priority date | — |
| Expiry date | Mar 16, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2206/22
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A catheter for use in vasculature or other body lumen includes a fluid injection bypass tube, leading to a elastically compressible pump bulb. Upon compression of the pump bulb, fluid such as contrast solution is injected through a one-way valve, into the catheter manifold lumen, and ultimately to the distal end of the catheter lumen, and into the patient vasculature. The one-way valve between the pump bulb and the catheter lumen has a threshold pressure to prevent unintended aspiration of fluid from the pump bulb during aspiration of fluid from the catheter itself.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.