Refrigerant supply system for cryotherapy including refrigerant recompression and associated devices, systems, and methods
US9017317B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2012 |
| Grant date | Apr 28, 2015 |
| Priority date | — |
| Expiry date | Jun 25, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2007/126
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Cryotherapeutic systems configured for refrigerant recompression and associated devices, systems, and methods are disclosed herein. A cryotherapeutic system configured in accordance with a particular embodiment includes a high-pressure line, a low-pressure line, a recompression unit, and a cryo-catheter. The recompression unit increases the pressure of refrigerant from the low-pressure line to the high-pressure line to a treatment pressure sufficient for cryogenic alteration of tissue. The high-pressure line and the low-pressure line include, respectively, a first connector and a second connector. The cryo-catheter includes a shaft, a supply lumen in the shaft that is coupled to the first connector, an exhaust lumen in the shaft that is coupled to the second connector, and a cryo-applicator attached to the shaft having a cooling chamber configured to receive refrigerant from the supply lumen and to return refrigerant via the exhaust lumen to the low-pressure line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.