FR2589354A1

FR2589354A1 - Cryostatic cushion for medical use

Info

Publication number: FR2589354A1
Application number: FR8516525A
Authority: FR
Original assignee: Individual
Current assignee: Individual
Priority date: 1985-11-06
Filing date: 1985-11-06
Publication date: 1987-05-07

Abstract

Cryostatic cushion for medical use. The invention relates to a cushion allowing cold to be retained for approximately twelve hours depending on the room temperature. It consists of an external envelope 1 which encloses 2 envelopes made of glass fabric 2 in which there is placed a plastic envelope 3 filled three quarters full with a gel 10. The device according to the invention is in particular intended for cryotherapy.

Description

La pressente invention concerne un coussin médical conservateur de froid (cryostatique). The present invention relates to a cold preservative (cryostatic) cushion.

La cryothérapie courament utilisée en médicine anti-infla mmatoire elle est pratiquée a l'aide de vessies en caoutchouc remplies de glaçons.Ces vessies ne sont pas iso therme, et les glaçons placés à l'intérieur en fondant rapidement provoquent des brûlures cutanées, et doivent être remplacées souvent leur durée de réfrigération étant limitée. La glace en fondant se transforme en eau, et, la vessie er sa stabilité et son efficacité.The cryotherapy commonly used in anti-inflammatory medicine it is practiced using rubber bladders filled with ice cubes. These bladders are not isothermal, and the ice cubes placed inside by melting quickly cause skin burns, and must be replaced often as their refrigeration time is limited. The melting ice turns into water, and, the bladder er its stability and efficiency.

Le coussin selon l'invention permet de remédier à ces inconvénients.Il comporte en effet une enveloppe externe (1) en matera plastique souple de 20/130 eme d'épaisseur environ non déformable au froid, elle garde toute sa souplesse.Thermo soudée dans ses extrémités (8). A l'intéri- eur de cette enveloppe un sac en tissus de verre (2)en double épaisseur de 20/100éme chacune ou un-e seule de de 40/100 éme. Dans lequel est enfermé par coutures(7) une enveloppe en matière plastique de 20/100éme. dtépais- seur,souple,non déformable au froid, gardant sa souplesse au froid, elle est thermo soudée dans ses extrémités (9). The cushion according to the invention overcomes these drawbacks. It indeed comprises an external envelope (1) of flexible plastic matera of 20/130 th thickness approximately non-deformable in the cold, it retains its flexibility. its ends (8). Inside this envelope a double fabric glass bag (2) of 20/100 th each or a single 40/100 th. In which is enclosed by seams (7) a plastic envelope of 20 / 100th. thick, flexible, not deformable in the cold, retaining its flexibility in the cold, it is heat-sealed at its ends (9).

Cette enveloppe (3) est remplie au 3/4 par un gel de carboxymethylcellulose sodique ou non pour assurer la stabilité du coussin. Cette enveloppe (v) est légement plus petite que le sac en tissus de verre (2) qui la renferme. Le gel de C.M.C (10) ne subit aucune modification ni altération aprês sa décongélation. Sa viscosité reste toujours entre 6000 et 9000 centipoises.Les dimensions et épaisseurs de ces coussins cryostatiques seront variable, et correspondront au besoin de la technique.Congelé à 200 pendant douze heures la durée de restitution du froid est de 12 heures un récipient d'eau 90 mn. un récipient de C.M.C 90 In. Ce coussin cryostatique est particulièrement destinée à la cryot hérapie mêdicale.Il est facile a' stocker .Lors de la restitution du froid sa condensation externe est trés légère trés inferieure à celle de la vessie de glace.Aucun talcage n'est nécessaire. Il existe un espace(6) entre les différents élénents. This envelope (3) is 3/4 filled with a sodium carboxymethylcellulose gel or not to ensure the stability of the cushion. This envelope (v) is slightly smaller than the glass fabric bag (2) which contains it. C.M.C (10) gel does not undergo any modification or alteration after thawing. Its viscosity always remains between 6000 and 9000 centipoise. The dimensions and thicknesses of these cryostatic cushions will be variable, and will correspond to the need of the technique. Frozen at 200 for twelve hours the duration of restitution of the cold is 12 hours a container of water 90 min. a CMC 90 In container. This cryostatic cushion is particularly intended for medical cryotherapy. It is easy to store. When the cold is restored, its external condensation is very slight, much lower than that of the ice bladder. is not necessary. There is a space (6) between the different elements.

Claims

1) Cryostatic cushion of all sizes and thicknesses, containing a sodium or non-sodium carboxymethylcellulose gel characterized in that it comprises an external envelope (1) made of flexible plastic material resistant to cold, waterproof, retaining its firmness during and after freezing, thermo-welded at its ends (8) inside which two envelopes weigh 20 / 100ths thick (or only one 40/100 emme.) (2) of glass fabrics sewn at its ends (,) to form a bag in which an envelope (3) identical to the external ltenvel3ppe (1) is placed. This envelope is thermally welded at its ends (9) it is filled with a gel (10) of sodium or non-sodium carboxymethyl cellulose.

2) Device according to claim 1 characterized with regard to its outer casing (1) which is made of flexible, waterproof plastic material undergoing no variation in cold and heat sealable.

3) Device according to claim let 2 characterized in that relates to its glass tissue which is of two thicknesses of 20 / 100th or even one of 40 / 100th; sewn into its ends (7) to form a bag.

4) Device according to claims 1,2,3 characterized with regard to the central envelope (3) which is of the same nature as the envelope (1) but smaller. This envelope is thermo welded (9) and filled on 3/4 with a sodium or non-sodium carboxymethylcellulose gel. (10)