American Hospital Supply Corporation

Barry N Jackson

Clifford E Gammons

Kenneth L Pagel

Francis C Moore

A disposable or reusable 'crawl resistant' flexible mattress formed of panels sealed together to define alternately inflatable passages between the panels for sequentially supporting structure for a long term bed patient to reduce decubitus ulcers, bed sores, etc. The mattress has vent holes in its top for ventilating the patient with inflation gas and a crawl resistant layer bonded to a bottom of the mattress to prevent the mattress from 'crawling' relative to the bed and patient during use. In one form of the mattress, crawling is reduced by a separation between the inflation passages so individual sections of the mattress can more readily conform to a patient's body contour.

Patient treating mattress

A compact low-resistance muffler for reducing sound levels generated by the pulsatile flow of fluids as, for example, at the intake of a compressor or the exhaust port of an internal combustion piston engine. The muffler or suppressor comprises a pair of adjacent branch passages having a common inlet trunk and a common outlet trunk, one of the branch passages containing a flow-restricting orifice and the other of such branch passages being free of any such restriction.

Sound suppressor for fluid flow lines

Patient treatment mattress with inflatable channels

A disposable or resuable 'crawl resistant' flexible mattress formed of panels sealed together to define alternately inflatable passages between the panels for sequentially altering supporting structure for a long term bed patient to reduce decubitus ulcers, bed sores, etc. The mattress has vent holes in its top for ventilating the patient with inflation gas and a crawl resistant layer bonded to a bottom of the mattress to prevent the mattress from 'crawling' relative to the bed and patient during use. In one form of the mattress, crawling is reduced by a separation between the inflation passages so individual sections of the mattress can more readily conform to a patient's body contour.

An apparatus and method are disclosed for promoting the evaporation of perspiration from an absorbent sheet of foam or other material covering an inflatable-deflatable patient-supporting bed pad. The pad has a multiplicity of perforations in its top wall which communicate with a pair of interlaced passages or chambers within the pad. By pulsing the air supplied alternately to each chamber of the pad at a frequency within the range of about 15 to 65 pulses per second, the perforations provide a multiplicity of tiny puffing or pulsing jets of air into the foam sheet to promote the evaporation of moisture from that sheet. Means for overlapping the inflation-deflation cycles is also disclosed.

Growing community of inventors

De Pere, WI, United States of America

Barry N Jackson