Invalid hoists
US5309584A · kind A · utility
Inventor
Key dates
| Filing date | Dec 17, 1992 |
| Grant date | May 10, 1994 |
| Priority date | — |
| Expiry date | Dec 17, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61G2200/52
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An invalid hoist comprises a pivoted jib (3) for carrying an under arm-sling (13), which is arranged when pivoted to lift a user from a sitting position to a standing position and vice versa. The hoist includes knee engaging means (5) and is preferably mounted on a movable chassis (1). The arrangement is such that the movement of the user's upper body from a sitting position to a standing position always involves a substantial forward component. In preferred embodiments, this is achieved by locating the pivot (15) at substantially the level of a user's waist, by having a jib (3) which is at least twice the length of the distance between the knee joint and the hip joint, and by spacing the pivot (15) backwardly from the knee engaging means (5).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.