Cryosurgical instrument with redirected flow
US8591505B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2011 |
| Grant date | Nov 26, 2013 |
| Priority date | — |
| Expiry date | Mar 9, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/0281
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A cryosurgical instrument that includes: an external shaft with a cryotip; a heat exchanger that cools a portion of the external shaft and the tip when cryogen is received thereby; and a flow diverter that receives a flow of cryogen, that splits the received flow of cryogen into two or more split cryogen flows, and that delivers the split cryogen flows to the heat exchanger, the flow diverter including a first passage with one or more inlet ports at an upstream side of the diverter that receive the flow of cryogen and two or more outlet ports at a downstream side of the diverter and in fluid communication with the heat exchanger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.