Apparatus for preventing deep vein thrombosis
US9649245B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2006 |
| Grant date | May 16, 2017 |
| Priority date | — |
| Expiry date | Jul 11, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61H2209/00
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus 40 for enhancing venous blood flow through a limb of a subject includes a detachable compression sleeve 41 extendable around the subject's limb and having a plurality of compressors 43-48 situated next to one another along the sleeve 41. In use, the compressors 43-48 substantially encircle the limb and compress the limb in a continuous cyclical compression sequence to move blood within the limb from the distal end of the sleeve 41 to the proximal end to replicate venous blood flow and to prevent backflow. In particular, as a said first compressor begins to compress the limb, a said second compressor preceding the first compressor in sequence already compresses the limb and continues to compress the limb at least until the first compressor compresses the limb to substantially the same extent as the second compressor, and a said third compressor which precedes the second compressor in sequence ceases to compress the limb.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.