Irrigation syringe
US5685851A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 1995 |
| Grant date | Nov 11, 1997 |
| Priority date | — |
| Expiry date | Jun 6, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S604/901
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An irrigation syringe which is particularly adapted for injecting water into a human body cavity, such as for the cleansing of an ear, includes a pressure regulator unit which is connected to, and supported by, a faucet, and a handpiece including a manually operable valve. The regulator unit includes a supply chamber having an inlet which is connected to a pressure water supply such as a faucet, an outlet which supplies pressure regulated water to the handpiece, and a pressure relief outlet having a check valve which opens to allow water to drain, such as into a sink, when the water pressure inside the regulator unit exceeds a predetermined value. A flow limiting orifice at the inlet to the supply chamber helps smooth out pressure fluctuations from the water supply and provides a steady flow from the supply chamber outlet. Temperature and pressure readouts are provided on both the pressure regulator unit and the handpiece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.