Negative pressure, thermal energy transfer device that also provides positive pressure to the patient
US8052624B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 29, 2008 |
| Grant date | Nov 8, 2011 |
| Priority date | — |
| Expiry date | Jul 6, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2007/0075
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A negative pressure, thermal energy device has an enclosure that receives a patient's body part. The body part is positioned in the enclosure and contacts a thermal energy contacting surface. The thermal energy contacting surface transfers its thermal energy to the body part. While in the enclosure, the body part is also exposed to a negative pressure to cause vasodilation. The combination of the vasodilation and the thermal energy transfer alter the patient's body core temperature. To ensure the body part remains in contact with the thermal contacting surface, the enclosure has a portion thereof that moves when negative pressure is in the enclosure. When the negative pressure is applied, the deforming enclosure material is pulled toward the body part to provide a positive pressure on the body part that ensures the body part effectively contacts the thermal energy contacting surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.