Pressure relief support system for a mattress

• US 5,070,560 A
• Filed: 10/22/1990
• Issued: 12/10/1991
• Est. Priority Date: 10/22/1990
• Status: Expired due to Term

• Current Assignee: SPAN America Medical Systems Incorporated
• Original Assignee: Healthflex, Inc. (Savaria Corp.)
• Inventors: Wilkinson, John W.
• Primary Examiner(s): Smith, Gary L.
• Assistant Examiner(s): SAETHER, FLEMMING
• Application Number:
  US07/601,314
• Time in Patent Office: 414 Days
• Field of Search: 5/236.1, 5/237, 5/238, 5/241, 5/448, 5/449, 5/455, 5/464, 5/465, 5/481
• US Class Current: 5/710
• CPC Class Codes: A47C 23/065 by fluid means

Abstract

The pressure relief support system contains longitudinal air cylinders having wood slats extending across the air cylinders along the length of the air cylinders forming the shape of a mattress. Foam strips may be included on each of these slats to provide an improved pressure relief mattress system for optimal patient comfort.

Claims

1. A pressure relief support system for a mattress comprising:

a plurality of elongate air cylinders arranged in a parallel relationship to form the innards of a mattress;

a plurality of slats forming a row of slats extending across the length of the air cylinders, each salt extending substantially perpendicular across the plurality of air cylinders and being substantially parallel to, and in juxtaposition with, an adjacent slat;

a plurality of individual foam strips, each foam strip supported by the topside of one of said slats, said foam strips extending substantially the length of the slat; and

means for securing each of the slats over the air cylinders wherein any of the air cylinders can be removed without disturbing the slats or remaining cylinders.

2. The pressure relief support system of claim 1 wherein the means for removably securing the slats comprises a band affixed to each slat which fits around one or more air cylinders.

3. The pressure relief support system of claim 2 wherein the means for removably securing the slats over the air cylinders comprises a casing surrounding the air cylinders having a plurality of sleeves therein for receiving the slats.

4. The pressure relief support system of claim 1 further comprising a removable outer cover.

5. The pressure relief support system of claim 1 wherein the foam strips comprise removable foam strips of various heights.

6. The pressure relief support system of claim 1 wherein the foam strips comprise removable foam strips of various heights and densities thereby allowing the foam strips to be arranged in different positions along the length of the mattress to allow the stiffness and contour of the surface of the mattress to vary.

7. The pressure relief support system of claim 1 wherein the slats are arcuately shaped in cross section, the slats having the convex side facing opposite the air cylinders.

8. The pressure relief support system of claim 1 further comprising a valve means on the air cylinders for allowing the air pressure within the cylinders to vary.

9. The pressure relief support system of claim 1 wherein two or more air cylinders are arranged to form an airspace therebetween.

10. A pressure relief support system for a mattress comprising:

a plurality of elongate air cylinders arranged in parallel relationship;

a casing surrounding the air cylinders having a plurality of sleeves therein each sleeve extending perpendicularly across the cylinders within the casing and being substantially parallel to, and in juxtaposition with, and adjacent sleeve;

a plurality of slats having an arcuate cross section, said slats insertable within the sleeves thereby being arranged in a substantially parallel relationship with each other and extending substantially perpendicular across the top of the air cylinders thereby forming a row of slats extending across the length of the air cylinders;

a plurality of individual foam strips, each foam strip supported by the topsides of one of the slats;

a protective liner contacting the bottom portion of the air cylinders; and

a removable outer cover for encasing the foam strips and slats.

12. The pressure relief support system of claim 10 or 11 wherein the foam strips may be of various heights densities thereby allowing the foam strips to be arranged in different positions along the length of the mattress to allow the stiffness and contour of the mattress surface to vary.

11. A pressure relief support system for a mattress comprising:

a plurality of elongate air cylinders arranged in parallel relationship to form the innards of a mattress;

a plurality of slats having an arcuate cross-section, each slat having one or more bands affixed thereto to form one of more loops;

the cylinders being insertable within the corresponding loops formed by the hands on each slat thereby forming a row of slats extending substantially perpendicular across the plurality of air cylinders and being substantially parallel to, and in juxtaposition with, an adjacent slat;

a plurality of foam strips, each strip removably secured to the top of the slats, and said individual foam strips extending substantially the length of a slat;

a protective liner contacting the bottom portion of the air cylinders;

a removable outer cover for encasing the foam strips and slats.