Cryosurgical device and method for cooling surfaces
US8038668B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 16, 2005 |
| Grant date | Oct 18, 2011 |
| Priority date | — |
| Expiry date | Sep 16, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B18/0218
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A cryosurgery device for dispensing a liquid refrigerant from a container having a valve stem extending outwardly therefrom. The device includes an actuator adapted to seat on the valve stem of the container in order to depress the valve stem to release the refrigerant from the container. The actuator includes an inner passageway having opposed ends disposed therein, one of the ends of the passageway being in fluid communication with the valve stem. An applicator tube is mounted to the actuator at the other end of the inner passageway. A cap is disposed on the top of the container. The actuator is movably positioned on the cap and a shield is attached to the cap to completely receiving the applicator tube. Liquid refrigerant can only be dispensed when the actuator is positioned properly and the applicator tube is disposed within the shield means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.