Closed-loop system for cryosurgery
US9078733B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2012 |
| Grant date | Jul 14, 2015 |
| Priority date | — |
| Expiry date | Jul 8, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2007/0057
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A closed-loop system for cryosurgery includes a cryofluid at cryogenic temperatures flowing through a closed-loop flow path. A pump, configured for operating at cryogenic temperatures, circulates the cryofluid in the closed-loop flow path. The closed-loop flow path includes a heat exchanger coupled to a heat sink configured for cooling the cryofluid in the closed-loop flow path to cryogenic temperatures. The closed-loop system includes one or more cryoneedles configured for providing cryotherapy, and one or more flow control devices, wherein each flow control device is configured for operating at cryogenic temperature and for selectively flow connecting or flow disconnecting at least one of the cryoneedles to the closed-loop flow path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.