EP0993818A2 - Support gonflable pour patient - Google Patents

Support gonflable pour patient Download PDF

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Publication number
EP0993818A2
EP0993818A2 EP99307992A EP99307992A EP0993818A2 EP 0993818 A2 EP0993818 A2 EP 0993818A2 EP 99307992 A EP99307992 A EP 99307992A EP 99307992 A EP99307992 A EP 99307992A EP 0993818 A2 EP0993818 A2 EP 0993818A2
Authority
EP
European Patent Office
Prior art keywords
air
array
patient
guide member
sheet
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Withdrawn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
EP99307992A
Other languages
German (de)
English (en)
Other versions
EP0993818A3 (fr
Inventor
Brian Frank Pile
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.)
Pegasus Ltd
Original Assignee
Pegasus Egerton Ltd
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 Pegasus Egerton Ltd filed Critical Pegasus Egerton Ltd
Publication of EP0993818A2 publication Critical patent/EP0993818A2/fr
Publication of EP0993818A3 publication Critical patent/EP0993818A3/fr
Withdrawn legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/05—Parts, details or accessories of beds
    • A61G7/057—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor
    • A61G7/05769—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor with inflatable chambers
    • A61G7/05776—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor with inflatable chambers with at least two groups of alternately inflated chambers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/05—Parts, details or accessories of beds
    • A61G7/057—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor
    • A61G7/05784—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor with ventilating means, e.g. mattress or cushion with ventilating holes or ventilators
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G2203/00—General characteristics of devices
    • A61G2203/30—General characteristics of devices characterised by sensor means
    • A61G2203/46—General characteristics of devices characterised by sensor means for temperature
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G2210/00—Devices for specific treatment or diagnosis
    • A61G2210/90—Devices for specific treatment or diagnosis for heating

Definitions

  • This invention relates to inflatable supports for patients, particularly human patients, for example mattresses for beds and cushions for chair seats, e.g. wheelchair seats.
  • the invention also relates to a method of operation of such supports.
  • mattresses which provide pressure relief have long been known and many have been placed on the market and put in use.
  • a first type of such mattresses is exemplified by the Pegasus Airwave (registered trade mark) mattress, made by the assignees of the applicant, which has a double-layer array of cells in the form of tubes which are divided into groups which are sequentially inflated and deflated in a predetermined cycle (see GB-A-1595417).
  • the tubes are of air-impermeable material, and are deflated by venting to atmosphere.
  • the tubes are deflated by connection to a suction pump or pumps.
  • a low air loss mattress has porous inflatable cells, so that when the cells are filled with air under pressure, there is continuous loss of air towards the patient. Low air loss from the cells has been combined with the cyclical inflation and deflation of the cells which provide the air loss.
  • Liquid-impermeable material such as Goretex (registered trade mark) which is nevertheless air-permeable has been used to try to avoid this, but nevertheless risks of cross-infection on re-use of the mattress and also of build-up of cellular growth on or in the mattress remain.
  • WO97/42919 describes a cooling jacket or overlay for a patient who is to be subjected to cooling to achieve mild hypothermia as a clinical treatment.
  • the lower side of the jacket may have apertures to provide a cooling air flowing over the patient. It is stated that this jacket may be used in conjunction with an inflatable mattress, preferably one of the low-air-loss type or alternatively one designed to provide pulsation therapy by cyclically varying pressures to the mattress.
  • the invention provides
  • the first and second air supply means may be fed with air from a common source of pressurised air under control of respective independent control means, e.g. independent pressure and flow rate control, but preferably are fed by respective separate sources of pressurised air, e.g. compressors, with respective control means.
  • respective independent control means e.g. independent pressure and flow rate control
  • respective separate sources of pressurised air e.g. compressors
  • the second air supply means preferably includes temperature control means, preferably heating means, for controlling the temperature of the ventilation air.
  • This temperature control may include feedback by means of a sensor of the temperature of the air supplied to or emitted from the ventilation air guide member. This sensor may sense the temperature of air adjacent the patient. It should be noted that the pressure reduction on emission of the air through the outlet apertures will cause it to cool slightly.
  • the flexible air guide member may be a tube mounted on one of the inflatable bodies of the array or between an adjoining pair of the bodies of the array. In this case there is preferably a plurality of these tubes at spaced apart regions of the array.
  • the flexible air guide member may be a flexible cover overlying the array of inflatable bodies with the outlet apertures on its side facing away from the array and having one or more air conduits within it for supply of air to the outlet apertures.
  • These may be a plurality of air conduits formed by tubes in the cover sheet.
  • the cover may have within its thickness an air-permeable core layer laminated with air-impermeable layers on both sides, one of said air-impermeable layers having the outlet apertures through it for passage of air from the core layer to the exterior.
  • the core layer thus constitutes a conduit.
  • this cover is stretchable in two perpendicular directions.
  • the inflatable bodies of the array providing support of the patient and periodic pressure variation may be made of air-impermeable sheet material, and may be for example elongate tubes.
  • the control means for this cyclic inflation and deflation includes suction means for extraction of air from them for their deflation.
  • the suction means may be arranged to establish a negative pressure (i.e. pressure below ambient atmospheric pressure) in the bodies during their pressure cycle.
  • the array may be controlled in the manner described in GB-A-2312835, whose contents are incorporated herein by reference.
  • the second air supply means is desirably arranged to provide in use a continuously positive air pressure in the flexible ventilation air guide member or members, so as to ensure continuous outflow of the ventilation air (except at any apertures which may be blocked by the weight of the patient).
  • This positive air pressure should preferably be substantially constant.
  • the cover may be constructed in accordance with EP-A-827705, the contents of which are herein incorporated by reference, i.e. a cover in which a top sheet is attached to side sheets with the top sheet having a greater lay-flat length than the side sheets, due to assembly with the side sheets in a stretched state.
  • This construction is compatible with the concepts of the cover sheets described here.
  • temperature control of the ventilation air is applicable, and can be easily selected and controlled.
  • all the air entering the mattress must be temperature controlled, but in the support of the present invention only the ventilation air need be temperature controlled.
  • a cooling effect can be achieved due to the expansion of the air on emerging from the apertures of the flexible air guide member. For many medical applications, heating is beneficial, and easily achieved in the invention.
  • the cover may itself constitute or contain the flexible ventilation air guide member or members and at the same time not permit passage of liquid through it from its upper to its lower side. This can be achieved with a thin, flexible and comfortable cover.
  • the air pressure in the apertured flexible ventilation guide member is generally low, so that if it is of tubular form it is easily compressed flat by the weight of a patient and therefore provides no discomfort.
  • the apertured flexible guide member is a sheet having an air-permeable core layer, which also provides no discomfort.
  • the cover including the ventilation air apertures can be relatively inexpensive, and therefore is economic to discard after use by a single patient, thereby minimising infection risk, particularly cross-infection risk.
  • Fig. 1 is a perspective view of a first form of flexible air guide member used in the present invention.
  • Fig. 2 is a transverse sectional view of the air guide member of Fig. 1.
  • Fig. 3 is a schematic general view of an inflatable patient support of the invention, incorporating air guide members as shown in Figs. 1 and 2.
  • Fig. 4 illustrates the effects of locating the air guide member of Fig. 1 at a particular point on the surface of the mattress of Fig. 3.
  • Fig. 5 is a general schematic view of another mattress embodying the invention.
  • Fig. 6 is a partial sectional view of the cover of the mattress of Fig. 5.
  • Fig. 7 is a general view of a cover of another mattress embodying the invention.
  • Fig. 8 is a partial cross-sectional view of the cover sheet of Fig. 7.
  • Fig. 9 is another partial cross-sectional view of the cover sheet of Fig. 7, showing the connection of an air inlet.
  • Fig. 10 is a view of a length of sheet used in the embodiment of the invention shown in Figs. 12-14.
  • Fig. 11 is a schematic cross-sectional view of the sheet of Fig. 10, with enlargement of the height direction.
  • Fig. 12 is a perspective view of another inflatable patient support embodying the invention using the sheet of Figs. 10 and 11.
  • Fig. 13 is an enlarged cross-sectional view on the line 13-13 of Fig. 12.
  • Fig. 14 is an enlarged view of the ringed portion of Fig. 13.
  • Figs. 1 and 2 show a flexible air guide member 1 in the form of a ventilation air distribution strip, which is mounted in use on the top of a conventional pressure relief mattress having air-impermeable inflatable cells in an array, such as the Pegasus Airwave or the Pegasus Renaissance mattresses which are described above.
  • These mattresses have a double layer array of transverse tubes, which in each case are divided into three groups, these groups being sequentially cycled through pre-determined pressure cycles.
  • Their construction and control is described in for example GB-A-1595417 and GB-A-2312835.
  • the ventilation air distribution strip 1 of Figs. 1 and 2 has two layers 2 of air-impermeable sheet material, for example heat-sealable polyurethane sheet, which are sealed together along four seal lines 3 shown in Fig. 2, so as to provide a central tube 4 and two lateral flaps 5.
  • the central tube 4 has a row of spaced apart small apertures 6 along one side, and is connected at its ends sealingly to pipes 7 by which the ventilation air is passed into the central tube 4.
  • Fig. 3 shows a mattress of the Pegasus Renaissance type, in which the air-impermeable tubes, which provide the support of the patient and periodic pressure relief due to their pressure cycling, are enclosed within a cover 8 which at its upper surface tends to conform to the shape of the top surface of the array of cells, as described in EP-A-827795.
  • the air strips 1 are held in position on top of this cover by being connected to a rigid or semi-rigid air distribution manifold in the form of a tube 9 which extends along both sides of the mattress and along one end, and to which the inlet pipes 7 of the strips 1 are connected.
  • a branch pipe 10 connects the manifold 9 to a compressor (not shown) which supplies air at a controlled constant pressure continuously into the manifold 9. This air passes into the strips 1 and out of the apertures 6 to effect continuous supply of ventilation air at the upper side of the inflatable support.
  • the inflated tubes 4 of the strips 1 are small, and contain air at low pressure, so that they are easily flattened by the weight of the patient on the mattress, where the patient contacts them, so that the patient cannot detect their presence, and they provide no discomfort.
  • the air supplied may be temperature-controlled, preferably by heating it by suitable heating means to a pre-determined desired temperature above ambient air temperature.
  • a temperature sensor may be provided in the air flow, with feedback control to obtain the desired temperature.
  • the air temperature adjacent the patient may be sensed, and the temperature of the ventilation air controlled in dependence on this sensed temperature.
  • the air strips 1 may be maintained in position by the rigidity of the manifold 9, or alternatively may be fixed e.g. by heat-sealing to the cover 8. In either case, the construction is easy to manufacture, and is sufficiently cheap to allow it to be used in a "single use" mode, being disposed of for example after use by one patient. Since the cover 8 does not allow liquid to pass through it to its underside, this removes the need for carrying out complex and costly disinfection procedures on the more expensive array of inflatable tubes within the cover.
  • the number and location of the strips 1 can be selected as required, and adapted to the particular needs of a patient or treatment.
  • Fig. 3 shows the strips 1 at the locations of the peaks of the undulating top surface of the cover 8, which conforms to the undulating top surface of the array of tubes within the cover 8.
  • the strips 1 are therefore located on the highest points of the inflatable tubes of the array, but of course during cycling of the array, each of these peaks will periodically disappear, particularly if the tube is subjected to suction, as described in GB-A-2132835, in which case the cover 8 tends to be pulled downwardly away from the patient. It is at this time that the flow of ventilation air is particularly beneficial, because it is directed into the space provided between the cover 8 and the patient's skin.
  • the strips 1 on top of an inflated tube may be pressing against the patient, in which case air flow from at least some of their apertures 6 will not take place. Nevertheless, a good ventilation effect can be obtained overall.
  • the strips 1 may be located not at the peaks of the undulations of the top surface of the cover 8, but part way down the sides of these undulations, as schematically shown in Fig. 4.
  • Fig. 4 shows a portion of the cover 8 having one strip 1 mounted between the positions of the peaks of two tubes A,B of the array of tubes inside the cover 8.
  • Fig. 4 shows how at time A with cell A inflated and cell B deflated, a strip 1 emits air from its apertures 6 obliquely upwardly into a space created under the patient. Later in the inflation/deflation cycle of the array of tubes, the tube B will be inflated and the tube A deflated, in which case as shown at time B in Fig.
  • the same strip 1 emits air obliquely upwardly into a space created between the patient and the cell A. In this way, it may be possible to obtain almost continuous emission of air from each strip 1. Compared with the case of Fig. 3 where the strips 1 are at the peaks of the undulations, fewer strips 1 may therefore be required. However, there is also the possibility that the patient's skin may block the apertures 6 at both time A and time B shown in Fig. 4.
  • the flexible air guide member providing the ventilation air passages to the apertures is a continuous sheet 10, formed of material which is stretchable in two directions, overlying the cover 8.
  • this sheet 10 is shown as covering part of the mattress only, but it may alternatively cover the whole of the mattress.
  • the sheet 10 contains a row of air passages, formed by additional sheet strips 11 sealingly secured along their edges to the sheet 10 so as to provide tubular passages (see Fig. 6). At the location of these tubular passages the sheet 10 has rows of apertures 6 for the emission of ventilation air towards the patient.
  • the sheet 10 is liquid-impermeable and air-impermeable.
  • the passages in the sheet 10 are connected at the edges of the sheet to an air manifold 12, which may be built into the sheet, which is in turn connected by a pipe 13 to the compressor for the ventilation air, which is supplied in the manner described above.
  • This sheet 10 can be provided on the mattress in the manner of the normal bed sheet, and can provide an efficient and uniform flow of ventilation air towards the patient.
  • the lines of the apertures 6 in the sheet 10 can be located at the peaks of the undulations of the cover 8 caused by the array of inflatable tubes in the cover 8, or in the troughs between the peaks, with similar effects as described above with reference to Fig. 4.
  • the cover 8 may be combined, i.e. the additional strips 11 may be provided on the material of the cover 8, and the apertures 6 formed in the cover 8 at the location of the strips. Even in that case, the cover 8 remains a relatively inexpensive item, suitable for "single use", to avoid hygiene and infection risks.
  • Figs. 7, 8 and 9 show a cover sheet 14, which can be used in the same manner as the sheet 10 of Fig. 5, as a flexible air guide member for supplying ventilation air to the patient.
  • the air flow passage in the sheet 14 is provided integrally in the sheet in the form of a core 15 shown in Fig. 8 which is made of loose weave material, which allows a free passage of air in two perpendicular directions, with very little air resistance (unless the sheet is compressed).
  • the core 15 is laminated over its two faces to sheets 16 of air-impermeable material, e.g. by means of adhesive.
  • One of the face sheets 16 has rows of apertures 6 through which the ventilation air emerges. As Fig. 7 shows, the rows of apertures 6 may have different mutual spacings at different parts of the sheet 14.
  • this aperture in the face sheet 16, to which the branch pipe 18 is attached may consist of a honeycomb of small voids.
  • Ventilation air is fed to the manifold 17 from a compressed air supply, optionally with temperature control, as described above. Since the core layer 15 is generally filled with air at slight pressure, the air can flow in all directions through this core 15. There is achieved a gentle outflow of air at all apertures 6 of the upper sheet 14 which are not directly blocked by the patients weight.
  • the pipes 7 of Fig. 1, and the manifold connections shown in Figs. 5 and 7, are preferably provided with self-sealing one way valves, so that they do not allow outflow of air if they are not connected, or become accidentally disconnected in use.
  • Figs. 10 and 11 show a composite sheet which is used in the embodiment of the inflatable support of the present invention shown in Figs. 12 to 14.
  • the composite sheet 10 of Figs. 10 and 11 consists of three layers adhered together by suitable adhesive.
  • On the other side of the core layer 15 is a face sheet 16a, of the same material as the sheet 16b. In use this sheet 16a is uppermost.
  • the sheet 16a has at its central region an array of laser-cut apertures of preferably 0.7 to 1.0mm diameter. As Fig. 10 shows these apertures 6 are in rows extending across the central region of the sheet 10.
  • gaps 20 are for inlet of air into the cover sheet 10, this air flowing laterally through the core 15 to emerge at the outlet apertures 6.
  • the face sheets 16a, 16b of the sheet 10 should preferably be made of waterproof material capable of withstanding repeated washes and wear and tear.
  • a suitable example of such a material is a polyurethane-coated nylon material known as Dartex tm (Penn Nyla, Nottingham, England). This material is stretchable, waterproof, hydrophilic and water permeable, and can withstand washing temperatures up to about 90°C.
  • the composite cover sheet 10 may be produced as a continuous length which is cut to the desired length for assembly as described below.
  • Figs. 12 to 14 show an inflatable patient support mattress capable of cycling pressure relief of a patient on it, in which the sheet 10 of Figs. 10 and 11 forms an upper cover, with its apertures 6 at the location where the patient lies.
  • Fig. 12 shows around the sides of the inflatable support an outer skirt 21 which is also formed of the Dartex material described above.
  • Fig. 12 also shows schematically inlet pipe bundles 22, 23 entering at the underneath of the mattress.
  • the interior of the mattress contains two layers of transverse air tubes 24, 25 which support the patient and are inflated and deflated in a predetermined cycle, as described in GB-A-1595417.
  • the tubes 24, 25 each extend the full width of the mattress, and are divided into groups for cyclical inflation and deflation.
  • Fig. 13 also shows one of a pair of side formers which are inflated tubes 26 extending along the two sides of the mattress and provide stiffening of the side portions of the mattress.
  • the tubes 24, 25, 26 are enclosed within a water-impermeable, vapour-permeable, removable cover, the aim of which is to prevent soiling and contamination of the tubes by body fluids and other spillages.
  • the cover is removable for replacement, for example before a new patient uses the mattress, and can be washed.
  • the top part of the cover is formed by the composite cover sheet 10 of Figs. 10 and 11 which, at the side of the upper tubes 24, is joined to an upper side sheet 27 which extends all around the mattress.
  • the upper side sheet 27 is joined to a bottom part 28 which has an open box shape and whose construction need not be described here.
  • the side sheet 27 and the bottom 28 are connected by a zip fastener 29, and may both be made of the Dartex material described above.
  • the outer skirt 21 hangs down and covers the zip fastener 29, to minimize risk that liquid reaches the zip fastener.
  • the edge portion of the cover sheet 10 along the sides of the mattress is looped back on itself to a connection point 30 to form a ventilation air distribution cavity 31.
  • the two portions of the sheet 10 are stitched together, with the interposition of an air-impermeable barrier strip 32 which closes over the edge of sheet 10 to prevent the loss of air from the edge.
  • the strip 32 may be a polyurethane film.
  • the strip 32 is connected at its other edge by stitching at connection point 33 to the outer skirt 21 and the inner side sheet 27. Lengths of heat sealing tape 34 are applied to provide airtight and watertight sealing of the stitching at the connection points 30, 33.
  • cover sheet 10 lying over the tubes 24, 25 has the undulating or ruched shape shown in Fig. 12, because it is connected to the skirt 21 and side sheet 27 while the latter are in a more stretched state in the longitudinal direction of the mattress than the sheet 10.
  • cover sheet 10 On relaxation of the skirt 21 and side sheet 27 to their unstretched state, cover sheet 10 becomes undulating, i.e. has fullness. This technique is fully described in EP-A-827705.
  • Figs. 13 and 14 show that an air supply tube pierces the sheet 10 at the cavity 31 and is glued in position with an airtight seal.
  • the air distribution cavity 31 formed by the looping back of the edge of the sheet 10 extends continuously around the mattress, i.e. extends at both sides and at the head and foot ends.
  • two inlet tubes 35 are provided at opposite sides of the mattress, close to the foot end. These supply tubes are connected to an air supply pipe via a detachable connector at the exterior of the mattress.
  • the air supply may be from a pump, possibly from the same pump as provides the inflation air for the tubes 24, 25, 26, alternatively from a separate supply source.
  • the air supplied to the distribution cavity 31 is preferably heated. In use, it is preferably supplied continuously.
  • the two supply tubes 35 may be in one pipe bundle 22, while air supply and return pipes for the tubes 24, 25, 26 are in the other pipe bundle 23.
  • Air entering the distribution cavity 31 passes through the gaps 20 into the core layer 15 of the sheet 10, and then emerges as ventilation air for the patient at the outlet apertures 6.
  • the cover sheet 10 tends to conform at any time to the shape of the top surface of the array of tubes 24.
  • the sheet 10 tends to stay close to the tube surface, particularly if positive suction is applied to the tubes when they are deflated, as described in GB-A-2312835.
  • the cover sheet 10 tends to be pulled down with the upper surface of a tube 24, when the tube 24 deflates.
  • the cover sheet 10 is pulled away from the patient, allowing air to escape freely from the apertures 6 and ventilate the patient's skin.

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  • Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Invalid Beds And Related Equipment (AREA)
EP99307992A 1998-10-13 1999-10-11 Support gonflable pour patient Withdrawn EP0993818A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9822335 1998-10-13
GBGB9822335.7A GB9822335D0 (en) 1998-10-13 1998-10-13 Inflatable patient supports

Publications (2)

Publication Number Publication Date
EP0993818A2 true EP0993818A2 (fr) 2000-04-19
EP0993818A3 EP0993818A3 (fr) 2001-01-03

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Family Applications (1)

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EP99307992A Withdrawn EP0993818A3 (fr) 1998-10-13 1999-10-11 Support gonflable pour patient

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GB (2) GB9822335D0 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002015835A1 (fr) * 2000-08-24 2002-02-28 Park House Healthcare Ltd. Systeme de matelas gonflable et procede d'utilisation correspondant
WO2003022190A3 (fr) * 2001-09-11 2003-05-08 Hill Rom Services Inc Structure support thermoregulatrice

Citations (6)

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Publication number Priority date Publication date Assignee Title
GB1595417A (en) 1977-03-29 1981-08-12 Welch H G Beds and mattresses
WO1994007396A1 (fr) 1992-09-29 1994-04-14 Pegasus Airwave Limited Coussin
WO1996019175A1 (fr) 1994-12-20 1996-06-27 Pegasus Airwave Limited Fauteuil avec support pour les mollets
GB2312835A (en) 1996-12-18 1997-11-12 Pegasus Airwave Ltd Inflatable patient supports and methods of operating them
WO1997042919A1 (fr) 1996-05-16 1997-11-20 Kci Medical Limited Systeme de refroidissement
EP0827705A1 (fr) 1996-09-09 1998-03-11 Pegasus Airwave Limited Revêtement de matelas

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DE19514295A1 (de) * 1995-04-24 1996-10-31 Airmed Prophylaxe & Therapie S Luftstrommatratze mit Kühlvorrichtung
WO1996033641A1 (fr) * 1995-04-25 1996-10-31 Kinetic Concepts, Inc. Lit a matelas d'air et a surface fluidisee des bourrelets et procedes s'y rapportant
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Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1595417A (en) 1977-03-29 1981-08-12 Welch H G Beds and mattresses
WO1994007396A1 (fr) 1992-09-29 1994-04-14 Pegasus Airwave Limited Coussin
WO1996019175A1 (fr) 1994-12-20 1996-06-27 Pegasus Airwave Limited Fauteuil avec support pour les mollets
WO1997042919A1 (fr) 1996-05-16 1997-11-20 Kci Medical Limited Systeme de refroidissement
EP0827705A1 (fr) 1996-09-09 1998-03-11 Pegasus Airwave Limited Revêtement de matelas
GB2312835A (en) 1996-12-18 1997-11-12 Pegasus Airwave Ltd Inflatable patient supports and methods of operating them

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002015835A1 (fr) * 2000-08-24 2002-02-28 Park House Healthcare Ltd. Systeme de matelas gonflable et procede d'utilisation correspondant
GB2380935A (en) * 2000-08-24 2003-04-23 Park House Healthcare Ltd Inflatable mattress system and method of use thereof
WO2003022190A3 (fr) * 2001-09-11 2003-05-08 Hill Rom Services Inc Structure support thermoregulatrice
EP1779824A3 (fr) * 2001-09-11 2010-10-27 Hill-Rom Services, Inc. Structure de support de patient thermorégulatrice
EP2286772A2 (fr) * 2001-09-11 2011-02-23 Hill-Rom Services, Inc. Structure de support thermorégulateur
EP2286772A3 (fr) * 2001-09-11 2012-08-01 Hill-Rom Services, Inc. Structure de support thermorégulateur

Also Published As

Publication number Publication date
GB9924062D0 (en) 1999-12-15
GB9822335D0 (en) 1998-12-09
EP0993818A3 (fr) 2001-01-03
GB2342579A (en) 2000-04-19
GB2342579B (en) 2003-06-11

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