Backrest device
First Claim
1. A backrest device having an upwardly facing supporting surface which is arranged to engage the back of a person lying supine in use on the supporting surface, the surface being convexly curved upwardly along a longitudinal direction and being substantially rigid to thereby withstand the weight of the person'"'"'s body, and the surface presenting two rows of knobbles extending alongside one another in the longitudinal direction for engaging the person'"'"'s back on each side of the spine, with a channel between the rows of knobbles to accommodate the bony part of the spine with substantially no pressure on the bony part of the spine, the knobbles comprising discrete knobs separated by spaces in the longitudinal direction.
0 Assignments
0 Petitions
Accused Products
Abstract
A backrest device having a supporting surface presenting two elongate continuous or discontinuous protuberances which extend alongside one another and are arranged to engage the back of a person, resting in use against the supporting surface, on each side of the spine, with a channel between the protuberances to accommodate the bony part of the spine with substantially no pressure on the bony part of the spine.
29 Citations
21 Claims
- 1. A backrest device having an upwardly facing supporting surface which is arranged to engage the back of a person lying supine in use on the supporting surface, the surface being convexly curved upwardly along a longitudinal direction and being substantially rigid to thereby withstand the weight of the person'"'"'s body, and the surface presenting two rows of knobbles extending alongside one another in the longitudinal direction for engaging the person'"'"'s back on each side of the spine, with a channel between the rows of knobbles to accommodate the bony part of the spine with substantially no pressure on the bony part of the spine, the knobbles comprising discrete knobs separated by spaces in the longitudinal direction.
Specification