Passive joint movement device and method for using the same
US6673028B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 1999 |
| Grant date | Jan 6, 2004 |
| Priority date | — |
| Expiry date | Sep 27, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B23/16
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A passive movement deivce for exercising a patient's joint is provided. The device includes a resilient foam section and a casing enclosing the foam section within a sealed chamber. The patient's joint is held in position relative to the sealed chamber by a suitable retainer. A vacuum pump is operatively connected with the sealed chamber to selectively provide application and non-application of a reduced pressure, i.e. below atmospheric, to the sealed chamber. The application of the reduced pressure causes the foam section to collapse thereby exerting a force on the joint which causes the joint to move or bend from a predetermined position. The non-application of the reduced pressure to the sealed chamber causes the foam section to expand thereby exerting a force on the joint which causes the joint to move or bend toward the predetermined position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.