Devices and methods for dispensing a cryogenic fluid
US8647337B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 2009 |
| Grant date | Feb 11, 2014 |
| Priority date | — |
| Expiry date | Aug 18, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/0275
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A dispensing head for dispensing a cryogenic fluid may comprise a flow passage configured to be placed in flow communication with a reservoir containing a cryogenic fluid, the flow passage defining a flow passage inlet opening configured to receive the cryogenic fluid from the reservoir, and a flow passage outlet opening opposite the flow passage inlet opening. The dispensing head may further comprise a dispensing member configured to dispense the cryogenic fluid, the dispensing member defining a lumen having a lumen inlet opening and a lumen outlet opening; and at least one porous member disposed in the flow passage, the at least one porous member being configured as a primary flow regulation mechanism to limit a flow rate of the cryogenic fluid as it flows from the reservoir to the lumen outlet opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.