Replaceable and/or easily removable needle systems for dermal and transdermal cryogenic remodeling
US9113855B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2013 |
| Grant date | Aug 25, 2015 |
| Priority date | — |
| Expiry date | May 15, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/0293
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention generally provides improved medical devices, systems, and methods. Some embodiments of the present invention apply cooling with at least one small, tissue-penetrating probe, the probe often comprising a needle having a size suitable for inserting through an exposed surface of the skin of a patient without leaving a visible scar. The cooling may remodel one or more target tissue so as to effect a desired change in a composition of the target tissue and/or a change in its behavior. Exemplary embodiments make use of replaceable needle probes supported by a probe body handle, with small needle probes often being replaced during treatment of a single patient. Careful control over the control of cryogenic cooling fluid into a needle probe can allow the length of the active cooling to be controlled through depletion of liquid from an evaporating cryogenic cooling flow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.