EP0190113A2 - Lit à eau thérapeutique - Google Patents

Lit à eau thérapeutique Download PDF

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Publication number
EP0190113A2
EP0190113A2 EP86850026A EP86850026A EP0190113A2 EP 0190113 A2 EP0190113 A2 EP 0190113A2 EP 86850026 A EP86850026 A EP 86850026A EP 86850026 A EP86850026 A EP 86850026A EP 0190113 A2 EP0190113 A2 EP 0190113A2
Authority
EP
European Patent Office
Prior art keywords
container
water
cover
air mattress
mattress
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP86850026A
Other languages
German (de)
English (en)
Other versions
EP0190113A3 (fr
Inventor
Jan R. Nystad
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0190113A2 publication Critical patent/EP0190113A2/fr
Publication of EP0190113A3 publication Critical patent/EP0190113A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
    • A47C27/08—Fluid mattresses
    • A47C27/085—Fluid mattresses of liquid type, e.g. filled with water or gel

Definitions

  • the present invention relates to a therapeutic water bed of the kind disclosed in the preamble to the following independent claim 1.
  • a therapeutic water bed of the disclosed kind is, inter alia, known from the applicant's own Norwegian Patent No. 135 508.
  • Such therapeutic water beds give a maximum relief from pressure for patients who lie in the same position for a considerable time. Particularly exposed are patients who are fixated in the same position because of rheumatic diseases, muscular atrophy, back injuries, anesthesia from recent surgery, paralysis, etc.
  • the flexible, elastic rubber cover on a water mattress smoothly_follows the shape of the body at the same time as the rubber cover insulates the body from the water.
  • the rubber cover gives some extra buoyancy, so that the patient "sinks" less below the surface of the water. Since the rubber cover is attached in a watertight manner to the edge of the water container and the volume of water does not fill the container completely, the water will rise in said container when the patient is laid on the water mattress, without creating a tension in the supporting surface/ rubber cover, such as in the traditional water beds where the water is enclosed in a flexible, inelastic plastic bag.
  • a rubber cover with a thickness of 5.5 mm is the lower limit for being able to turn around unaided.
  • a rubber cover of 5.5 mm and thicker gives such an added buoyancey and firmness that a person can turn around by himself on the mattress.
  • This lower limit applies to persons who weigh less than 80 kg.
  • the thickness of the mattress must be increased to around 7 mm.
  • the water mattress can be used for relaxation therapy with a surface of maximum softness.
  • the water mattress can thus be used for relaxation at fixed time periods during the day and by inflating the air mattress it will support the soft surface and make it firmer so that the mattress can be used to sleep on at night with a somewhat reduced relaxation effect. This possibility leads to a greater utilization of the water mattress.
  • Tne experience from the known water mattress shows that the loose, inflated air mattress creates a firmer surface, but the surface becomes too unstable. The least movement will easily create uncomfortable and long-lasting waves in the mattress, and rolling lateral movements will easily occur.
  • the air mattress cannot, in this known water mattress, be tightly fastened to the sides of the water container, since it shall sink to the bottom when it is not in use in its deflated state.
  • To attach the air mattress to the stretching tapes for the stretching device does not stabilize the air mattress either, when the stretching tapes are slack. By stretching the stretching tapes to stabilize the air mattress, the stretching tapes will support the air mattress at those points which protrude most deeply into the water because of the load, while the rest of the air mattress flows freely and follows the movements in the water.
  • the purpose of the present invention is to remove or reduce the above-mentioned disadvantages of the known water mattress, viz., to prevent said uncomfortable and long-lasting waves in the water mattress and make it easier to vary the thickness of the rubber cover on the water container to achieve the desired support pressure in the flexible, elastic rubber cover on the water container, the rubber cover constituting the supporting surface for the body.
  • the bottom of the air mattress also serves as the firm support for the top surface by fastening the stretching tapes used for the stretching directly along the side of the bottom of the air mattress.
  • the top area is raised straight up with minimum contraction (shrinking) of the air mattress in lateral and longitudinal direction because of the special construction which is disclosed in the characterizing clause.
  • the air mattress will support the total top surface since the stretched bottom will press the rest of the mattress upwards.
  • the stretching device and the air mattress are executed as one unit, one can make a surface of maximum softness firmer and simultaneously steady by inflating the air mattress and subsequently stretching the stretching tapes.
  • the pressure will be distributed along the bottom of the air mattress and distributed to several stretching tapes, and one thus achieves a steadier mattress both in a lateral and longitudinal direction.
  • the bed is hightly suitable for use, for example, in polyclinical treatments of various psychosomatic and nervous disorders, in that the patient can have the bed at home and use it regularly for relaxation and go to polyclinical examinations and conferences with the attending staff.
  • the disclosure in the characterizing clause of the dependent claim 3 solves the problem of varying the thickness of the rubber cover by using two rubber covers, of which the bottom one, a 2 mm thick cover, is attached with a watertight seal to the upper edge-of the water container and the top one is detachably fastened to the outer sidewalls of the container by means, for example, of a Velcro fastener.
  • This second top cover can be comprised of neoprene rubber which is nylon reinforced on both sides. This second cover is available in different types of thickness and can easily -be changed so- that one in a simple way can get the correct total thickness on the top surface for the different purposes.
  • Another advantage in using two rubber covers is the fact that it simplifies the cleaning of the surface since the upper cover can easily be changed and sent to the laundry and the dry-cleaning establishment if it becomes soiled by urine, defecation, pus from wounds or similar matters.
  • the detachable cover can also be sterilized so that one more easily can provide a sterile top area which is necessary with large burns, wounds and the like.
  • the therapeutic water bed according to the invention has become a simpler and better-solution than the previously known water mattress at the same time as its area of utilization has become considerably enlarged, especially in that the therapeutic bed can be used for relaxation therapy in the homes.
  • the therapeutic bed can therefore become an important aid both for the purpose of treatment and for the prevention of, inter alia, diseases caused by mental stress.
  • the therapeutic water bed as shown in the figure - without a frame and/or legs - comprises a water container 1, for example cast in polyester plastic, reinforced with fiberglass, with water inlet/outlet comprising a faucet 2 with rapid coupling.
  • the bottom 3 of the water container 1 is longitudinally and laterally shaped in such a way that it approximates the back longitudinal and crosswise contour of a person in a reclining position, which leads to the use of a reduced volume of water in relation to the usual water mattresses and thus a saving in weight.
  • the opening of the water container 1 is covered with a cover 4 of preferably a thin, nylon reinforced elastic rubber material, as used in diving suits, for example neoprene rubber, with a thickness of,for example,2 mm.
  • the cover 4 is attached ' to the sidewalls 3a of the water container 3 by means of a clamping band 4b, attached to the sidewalls 3a of the water container in a conventional manner, for example by means of screws which engage with screws in the sidewall 3a.
  • the cover 4 On top of the cover 4 a second, detachable cover 4a of the same material has been devised, the second cover being attachable to the sidewalls 3a of the water container 3 by, for example, Velcro fasteners or other suitable means.
  • an inflatable air mattress Inside the water container 3 an inflatable air mattress is devised with a valve (not shown) projecting out of the water container 3 for respectively supply/discharge of air.
  • the air mattress 5 comprises a bottom 5a of a flexible, inelastic material with a top 5b of a flexible, elastic material.
  • the bottom 5a and the top 5b are connected with each other via sidewalls 5c of a flexible, inelastic material and spacing tapes 5d of preferably the same length, which are fastened to the inside of respectively the bottom 5a and the top 5b and evenly distributed over these areas.
  • a flexible, inelastic material and spacing tapes 5d of preferably the same length, which are fastened to the inside of respectively the bottom 5a and the top 5b and evenly distributed over these areas.
  • the groove 3b is furnished with hollows in the sidewall facing the interior of the container and in the bottom for accommodating said tape loops 8a after they are strung on the rod 9, which is placed in the groove 3b.
  • a corresponding groove 3b is devised along the inside of the opposite sidewall 3a of the water container 3 for engagement with stretching tapes 8 fastened to the other longitudinal side area of the bottom 5a.
  • the stretching tapes 8 run across a rod 9 placed in said groove 3b and down to a rotatable axle 6 mounted in the ears 6a in the sidewall 3a of the water container 1, near the bottom 3.
  • the axle 6 passes in a watertight manner out through the sidewall 3a of the end section of the water container 1 and is furnished with a driving device 6 in the form of a worm with a handle (not shown) for manual use or possibly a driving motor with a control device.
  • the therapeutic water bed is further supplied with an air valve 10 positioned, for example, at the lower edge of the sidewall 3a of the water container 1 and with an air duct ending inside the water container 3 in approximately the same height as the upper edge of the sidewall 3a.
  • an air valve 10 positioned, for example, at the lower edge of the sidewall 3a of the water container 1 and with an air duct ending inside the water container 3 in approximately the same height as the upper edge of the sidewall 3a.
  • the therapeutic water bed After filling water in the water container 3 up toward the upper edge of the sidewalls 3a and forcing out possible air through the air valve 10, the therapeutic water bed is ready for use.
  • the top area will display maximum softness and pressure distribution between the body of the person lying on the therapeutic water bed and the flexible, elastic cover 4 with an additional cover of the same material.
  • This maximum softness can be changed somewhat by changing the thickness of the outer cover 4a depending upon the condition of the patient, as further explained in the descriptive introduction.
  • the air mattress 5 can subsequently be inflated, so that it floats up through the water and comes to rest against the double cover 4, 4a.
  • the firmness can thereby be regulated by means of the volume of air in the mattress. Since the top surface of the air mattress 5b also is of a flexible, elastic material, it will follow and conform to the different shapes of the double cover 4, 4a which are produced by the patient's lying on the mattress.
  • the top area can subsequently be made even firmer by stretching the stretching tapes 8, in that the stretching axle 6 is turned by means of the driving device 7 until the desired pull on the stretching tapes 8 is achieved, said pull being transferred to the flexible, inelastic bottom 5a and further to the tape loops 8a which are attached to the rod 9 at the opposite sidewall 3a of the water container 1.
  • a mattress surface can be provided with all degrees of softness from maximum softness for complete relaxation of the patient to a completely hard and steady top surface for nursing care and treatment of the patient. Because of the special design of the water container 1, a relatively small volume of water is used, whereby the therapeutic water bed becomes lighter than the generally available water mattresses and can therefore be placed anywhere without considering the present floor constructions.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Invalid Beds And Related Equipment (AREA)
  • External Artificial Organs (AREA)
EP86850026A 1985-01-29 1986-01-29 Lit à eau thérapeutique Withdrawn EP0190113A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO850345A NO156595C (no) 1985-01-29 1985-01-29 Terapivannseng.
NO850345 1985-01-29

Publications (2)

Publication Number Publication Date
EP0190113A2 true EP0190113A2 (fr) 1986-08-06
EP0190113A3 EP0190113A3 (fr) 1987-09-23

Family

ID=19888084

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86850026A Withdrawn EP0190113A3 (fr) 1985-01-29 1986-01-29 Lit à eau thérapeutique

Country Status (3)

Country Link
EP (1) EP0190113A3 (fr)
DK (1) DK42786A (fr)
NO (1) NO156595C (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0232691A3 (fr) * 1985-12-20 1988-01-20 Jan R. Nystad Lit d'eau de préférence pour usage domestique comme lit d'eau thérapeutique
US5175898A (en) * 1984-03-19 1993-01-05 Advanced Sleep Products Sculptured, stretchable waterbed mattress with aesthetic appearance
GB2305521A (en) * 1995-08-22 1997-04-09 Yu Chun Hsia Waterbed

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO752682L (no) * 1975-07-30 1977-02-01 Jan Nystad Vannmadrass.
DE2928629C2 (de) * 1979-07-16 1982-04-29 Walter 3501 Niestetal Dräbing Luftmatratze

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5175898A (en) * 1984-03-19 1993-01-05 Advanced Sleep Products Sculptured, stretchable waterbed mattress with aesthetic appearance
EP0232691A3 (fr) * 1985-12-20 1988-01-20 Jan R. Nystad Lit d'eau de préférence pour usage domestique comme lit d'eau thérapeutique
US4727607A (en) * 1985-12-20 1988-03-01 Nystad Jan R Water bed
GB2305521A (en) * 1995-08-22 1997-04-09 Yu Chun Hsia Waterbed
GB2305521B (en) * 1995-08-22 1997-09-03 Yu Chun Hsia Water bed with temperature control means

Also Published As

Publication number Publication date
DK42786A (da) 1986-07-30
NO850345L (no) 1986-07-30
NO156595C (no) 1987-10-21
DK42786D0 (da) 1986-01-29
EP0190113A3 (fr) 1987-09-23
NO156595B (no) 1987-07-13

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