Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
249 words
A therapeutic water bed with a top surface adjustable between a completely soft condition for maximum relief from pressure for patients who lie in the same position for a considerable time to a firm condition for nursing care and other treatments of patients, comprising a water container (1) open at the top, with inlet/outlet for water and whose bottom (3) is preferably shaped to approximate the longitudinal contour of the back of the patient, a flexible, elastic and watertight cover (4) attached with a watertight seal to the sidewalls (3a) of the container, an inflatable air mattress (5) positioned inside the container (1) and having inelastic spacing tapes (5d) spaced apart and distributed over the top and bottom areas of the air mattress (5), supported by a supporting device positioned inside the container (1) and capable of being raised and lowered from the outside of the container, said device comprising flexible, inelastic tapes (8) running transversely in the container (1) and capable of being stretched/slackened by suitable means (6, 7) devised at one of the longitudinal sides of the container (1), characterized i n that the tapes (8) are attached to the bottom (5a) of the air mattress (5) along one of its longitudinal sides, its other longitudinal side being rigidly attached to the other longitudinal side of the container (1), and that the bottom (5a) of the air mattress (5) is composed of a flexible, inelastic material whereas its top (5b) is composed of a flexible, elastic material.
Claim 2
Dependent Claim
249 words
A therapeutic water bed with a top surface adjustable between a completely soft condition for maximum relief from pressure for patients who lie in the same position for a considerable time to a firm condition for nursing care and other treatments of patients, comprising a water container (1) open at the top, with inlet/outlet for water and whose bottom (3) is preferably shaped to approximate the longitudinal contour of the back of the patient, a flexible, elastic and watertight cover (4) attached with a watertight seal to the sidewalls (3a) of the container, an inflatable air mattress (5) positioned inside the container (1) and having inelastic spacing tapes (5d) spaced apart and distributed over the top and bottom areas of the air mattress (5), supported by a supporting device positioned inside the container (1) and capable of being raised and lowered from the outside of the container, said device comprising flexible, inelastic tapes (8) running transversely in the container (1) and capable of being stretched/slackened by suitable means (6, 7) devised at one of the longitudinal sides of the container (1), characterized i n that the tapes (8) are attached to the bottom (5a) of the air mattress (5) along one of its longitudinal sides, its other longitudinal side being rigidly attached to the other longitudinal side of the container (1), and that the bottom (5a) of the air mattress (5) is composed of a flexible, inelastic material whereas its top (5b) is composed of a flexible, elastic material.
Claim 3
Dependent Claim
40 words
A therapeutic water bed according to Claim 1, characterized by the placement above the cover (4) of a second elastic cover (4b) detachably fastened along the edges (3a) of the container (1), for example by means of Velcro - fasteners.
Claim 4
Dependent Claim
98 words
A therapeutic water bed according to Claim 1, characterized by a groove (3b) open at the top, running along the inside of the two longitudinal sidewalls (3a) of the container (1), with hollows (3c) in the bottom of the groove and the sidewall facing the interior of the container for accomo- dating a rod (9) for fastening loops (8a) of tape from one longitudinal side of the air mattress (5) and for conveying the stretching tapes (8) from the other longitudinal side down to a, per se, known rotatable stretching axle (6) mounted (6a) inside the container (1).