DE4306059C1 - Cushioning for reclining surfaces for patients - Google Patents

Abstract

Cushioning for reclining surfaces for patients, comprising an elastic foamed core and a protective covering with inside seams that are tightly welded all round.

Description

The invention relates to a cushion for patient beds, consisting of a elastic foam core and a protective cover with welded tight on all sides inside seams.

DE G 9002715.9 describes a protective cover which is placed over a mattress the last open side is closed with a zipper. The zipper is not liquid-tight and also presents a weak point Damage.

As a result of the leaky zipper and damage, liquid can enter Get inside of the cushion and the hygienic conditions, for. B. on operations table, deteriorate.

The object of the invention is a cushion for patient beds, consisting of a elastic foam core and a protective cover with tightly welded inside seams.

The object is achieved according to the invention in that

• 1. all the seams of the protective cover are welded except for one last seam,
• 2. the protective cover is then pulled out,
• 3. the elastic foam core is inserted through the last open seam,
• 4. the last open seam with inner seam legs through the outside surfaces of the protective cover is welded and between the outer surface of the Protective cover and the inner seam legs a material application is brought, which is a welding of the outer surfaces of the protective cover with the internal seam thighs prevented.

An embodiment of the invention is explained with reference to FIGS. 1-7. It shows

Fig. 1 is a cushion for the patient support surfaces,

A section through the outer shell of the pad before it is converted Fig. 2 inside out,

Fig. 3 is a section through the outer shell of the pad after it is inverted,

Fig. 4 is a section inside out through the outer shell of the pad after it vice, wherein the last remaining seam is visible,

Fig. 5 is a section through the pad after the resilient foam is inserted core and the last remaining open seam is prepared for locking weld,

Fig. 6 is an enlarged section through the last remaining seam after it is prepared for welding,

Fig. 7 shows a section through the last welded seam.

All seams of the protective cover of the upholstery are welded except for one last seam left open, as shown in FIG. 2.

Then the outer shell is turned inside out and the elastic foam core brought in.

Material is applied to the inside of the legs of the inside last seam, this can be glued on as a film or sprayed on in liquid form. The seam is now folded in accordance with FIG. 6 and possibly clamped at 10 and 11 with a device.

The seam is welded in level I-I.

The material applied to the inside of the legs 3 , 4 has the effect that no welded connection can occur between the outer surfaces of the protective cover and the inside legs 3 , 4 .

With this preparation, the welded connection can only be created between the legs 3 and 4 as a weld 9 .

Then the folded seam 2 is pulled apart and the desired tight internal seam connection remains as shown in FIG. 7. The weld can e.g. B. done as ultrasonic welding.

So there is a gas leak between the interior of the upholstery and the surroundings can be exchanged, there will be an opening at some point in the outer shell incised from the inside with a liquid-tight but gas-permeable casual film is closed.

Reference list

1 outer shell
2 Last seam to be welded
3 inner legs of 2
4 inner legs of 2
5 outer surface of the protective cover in area 2
6 outer surface of the protective cover in area 2
7 Application of material between the outer surface of the protective cover and the inner seam leg on the inside
8 Apply material between the outer surface of the protective cover and the inner seam leg on the inside
9 weld seam between the inner seam legs of the last welded seam
10 line of a clamping device
11 Line of a clamping device
12 Elastic foam core
13 opening
14 Gas permeable film
II welding level of the last seam

Claims (2)

1. cushion for patient lying surfaces, consisting of an elastic foam core and a protective cover with tightly welded inner seams on all sides, characterized in that after the elastic foam core has been introduced into the protective cover, the last open seam with inner seam legs is welded through the outer surface of the protective cover and between the outer surface of the protective cover and the inner seam legs on the inside of which a material application is introduced, which prevents welding of the outer surfaces of the protective cover to the inner seam legs, but enables welding of the inner seam legs to one another. 2. cushion for patient beds according to claim 1, characterized in that an opening is provided in a cushion surface, which from the inside with a liquid-tight but gas-permeable film is sealed.