Ambulance stretcher with improved height adjustment feature
US6389623B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2000 |
| Grant date | May 21, 2002 |
| Priority date | — |
| Expiry date | Mar 23, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61G1/0287
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A stretcher comprised of a roller base, a scissor-type lift frame having a lower end rotatably connected to the base, a tubular undercarriage rotatably and slidably connected to an upper end of the frame, a foldable rigid support positionable over the undercarriage, a soft, foldable cushion positionable over the support and connected thereto to prevent disassociation therefrom, and first and second side-arm supports rotatably connected to the undercarriage. The lift frame includes left and right side assemblies, each side assembly having a fixed-length leg member and a telescoping variable-length leg member, both of which are rotatably connected to the base, and rotatably and/or slidably connected to the undercarriage. The leg members of each side assembly are connected to one another at their respective mid-sections by a joint, and are rotatable with respect to one another along an axis of the joint, which is offset from the member's central axes. The undercarriage includes first and second longitudinal frame members and first and second movable end extensions. Internal to each of the longitudinal frame members is a releasably locking mechanism to lock the stretcher at a predeterm…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.