Pneumatic fluid actuated continuous passive motion device
US5529573A · kind A · utility
10Cited by
18References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 15, 1993 |
| Grant date | Jun 25, 1996 |
| Priority date | — |
| Expiry date | Nov 15, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61H2201/5092
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A continuous passive motion device comprises a leg support frame actuated by alternately, pneumatically inflating and deflating a bladder assembly. The assembly includes a series of interconnected bladders associated with a pump and a three-way solenoid valve, and provided with flaps secured at a common point which act as a hinge. The secured flaps force movement of the bladders in an arcuate path during inflation and deflation, providing an operating force against pivotal components of the device thus actuating it. A photointerrupter control device is provided that controls the angular limits of the desired therapy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.