Fluid injection device
US7901374B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 25, 2007 |
| Grant date | Mar 8, 2011 |
| Priority date | — |
| Expiry date | Sep 25, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/00154
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A fluid injection device includes: a pulse generation section that includes a fluid chamber whose volume is changeable, and an inlet flow passage and an outlet flow passage that are connected to the fluid chamber; a first connection flow passage connected to the outlet flow passage, having an end portion; a second connection flow passage connected to the inlet flow passage; a fluid injection opening formed at the end portion of the first connection flow passage, having a diameter smaller than the diameter of the outlet flow passage; a connection flow passage tube including the first connection flow passage and having rigidity adequate to transmit pulses of fluid flowing from the fluid chamber to the fluid injection opening; and a pressure generation section that supplies fluid to the inlet flow passage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.