EP0317009A1 - Lit pour traitement thérapeutique d'un patient - Google Patents

Lit pour traitement thérapeutique d'un patient Download PDF

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Publication number
EP0317009A1
EP0317009A1 EP88202536A EP88202536A EP0317009A1 EP 0317009 A1 EP0317009 A1 EP 0317009A1 EP 88202536 A EP88202536 A EP 88202536A EP 88202536 A EP88202536 A EP 88202536A EP 0317009 A1 EP0317009 A1 EP 0317009A1
Authority
EP
European Patent Office
Prior art keywords
air
wall
bed
permeable sheet
flange
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.)
Granted
Application number
EP88202536A
Other languages
German (de)
English (en)
Other versions
EP0317009B1 (fr
Inventor
Johannes Franciscus Maria Kersten
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.)
KCI Medical BV
Original Assignee
KCI Medical BV
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 KCI Medical BV filed Critical KCI Medical BV
Priority to AT88202536T priority Critical patent/ATE72105T1/de
Publication of EP0317009A1 publication Critical patent/EP0317009A1/fr
Application granted granted Critical
Publication of EP0317009B1 publication Critical patent/EP0317009B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • A61G7/05738—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor with fluid-like particles, e.g. sand, mud, seeds, gel, beads
    • A61G7/05746—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor with fluid-like particles, e.g. sand, mud, seeds, gel, beads fluidised by air flow

Definitions

  • the invention relates to a bed for therapeutic treatment of a patient, comprising a casing which is filled with small glass balls, and the bottom of which is formed by an air-permeable sheet, and which is covered at the top side by a filter cloth which forms the lying surface for the patient, an air chamber which is connected to an air supply line for causing fluidization of the glass balls being formed below the air-permeable sheet.
  • Such a bed is known, for example from DE-A-1566439, and is intended in particular for use in hospitals for the care of patients with burns or bedsores.
  • the objects of the present invention are to improve this known bed in such a way that it is a light, sturdy structure which is easy to assemble and take apart, and in which undesirable air leaks are prevented in an effective manner.
  • the bed comprises an outer casing containing a supporting rim which is provided along the inner periphery some distance away from the bottom, and on which the air-permeable sheet rests so that the air chamber is formed below it, while provision is made inside said outer casing at a distance from the upright side walls thereof for an upright circumferential inner wall which rests on the air-permeable sheet and encloses the glass balls, and in the space between the outer and inner walls means are present for preventing air leakage from the air chamber to this space.
  • the double-walled structure of the bed according to the invention provides a stable, light structure which is cheap to produce and with which undesirable air leakage can be effectively prevented.
  • the inner wall preferably rests on the air-­permeable sheet with a flange directed towards the outer wall, and the means for preventing air leakage preferably comprise pressure elements which are fixed to the outer wall and act upon said flange.
  • an air treatment plant is provided in the air supply line to the air chamber.
  • air of which the temperature and pressure can be regulated, and which is thus independent of the temperature in the room where the bed is set up, can be fed through the bed.
  • the bed contains a pressure gauge, which is intended for measuring the pressure under the patient, and which is connected to a control element which controls the fan unit depending on the measured value.
  • a pressure gauge which is intended for measuring the pressure under the patient, and which is connected to a control element which controls the fan unit depending on the measured value.
  • the bed comprises an outer casing which is indicated in its entirety by reference number 1, and comprises a bottom part 2 and a circumferential upright outer wall 3. Provision is made along the inner periphery, some distance away from the bottom 2, for a continuous supporting rim 4, which is stepped in the embodiment shown. On this supporting rim 4 rests an air-­permeable sheet 5 which is made of, for example, a porous polymer. To support the air-permeable sheet 5, provision is also made for a number of supporting bars 6 extending in the crosswise direction of the bed (see Fig. 3a). An air chamber 7 is in this way formed between the air-permeable sheet 5 and the bottom 2 of the outer casing 1, into which air chamber a line 8 opens via the bottom 2, for the supply of air, which will be discussed in greater detail below.
  • the space between the outer wall 3 and the inner wall 9 contains pressure elements which act on the flange 10 and press said flange firmly against the plate 5 and the latter in turn against the supporting rim 4, and prevent air leakage from the air chamber 7 to said space.
  • the pressure elements comprise a bar 11 which is provided with external screw thread and is fixed in a drill hole provided with corresponding screw thread in a support 12 fixed on the outer wall 3.
  • the top of the bar 11 has a control knob 13, and the bottom has a foot 14 which rests against the flange 10 of the inner wall 9.
  • the flange 10 is pressed with force against the plate 5 by means of the knob 13, and said plate is in turn pressed against the stepped support 4.
  • Strips of sealing material or sealing tape are provided between the flange 10 and the plate 5 and between the plate 5 and the support 4, in order to ensure an airtight connection between the plate 5 and the inner wall 9 or the support 4. This effectively prevents air leakage from the air chamber 7 to the space between the outer wall 3 and the inner wall 9.
  • Fig. 1 three pressure elements are provided along each long side of the bed, and two are provided along each short side of the bed.
  • the supports 12 along the long sides of the bed each have a part on the outside of the wall 3 on which a side rail 15 is fitted.
  • the glass balls provided inside the wall 9 are covered with a filter cloth or filter sheet 16 which is thrown over the top end of the inner wall 9 and fixed thereto by means of a clamping strip 17 (Fig. 3b).
  • a clamping channel 18, which is U-shaped in cross section, and the free ends of the legs of which are each provided with an outward-directed flange 19, 20, is disposed between the outer wall 3 and the inner wall 9.
  • the flange 19 here rests on the top of the outer wall 3, while the flange 20 rests on the clamping strip 17 pushed onto the inner wall 9.
  • the channel is tensioned between the two walls, so that the two flanges exert slightly downward spring force on the outer wall 3 and the clamping strip 17 respectively.
  • Said flange 21 is made of a flexible rubber or plastic material.
  • said flange is left out for the sake of clarity, in order to show the pressure elements and the clamping channels.
  • the flange 21 can partially come away from the inner wall in the process.
  • the clamping channels 18 are fitted in order to prevent the clamping strip 17 from being taken with the flange 21 and the filter sheet from coming off.
  • the line 8 for the supply of air to the air chamber 7 is connected to an air treatment plant 22.
  • This air treatment plant comprises in succession a filter unit 23, a fan unit 24, a cooling unit 25, and a heating unit 26.
  • Air can be fed at a suitable temperature and/or pressure into the air chamber 7 by means of this plant, the air spreading in said chamber and then flowing via the plate 5 through the space filled with the small glass balls, and subsequently flowing out through the filter sheet 16.
  • the glass balls are fluidized by the air, so that a patient resting on the filter sheet 16 is uniformly supported, and no local pressure concentrations occur.
  • the corner points of the bed are provided with fairly large rounded areas, which prevent the occurrence of dead corners through which insufficient or no air flows and, on the other hand, leave sufficient leg space free for the patient.
  • the pressure and the temperature of the infed air can be regulated by means of this air treatment plant, independently of the temperature obtaining in the room where the bed is set up.
  • An electronic pressure gauge 27 could be fitted under the patient, to control the fan unit 24 via a control unit 28, so that ideal pressure can be achieved under the patient.
  • the filter unit 23 can be fitted with a bacteria filter, in order to prevent bacterial growth in the bed.
  • clamping channel 18 can be made integral with the covering flange, possibly together with the clamping strip 17.
  • additional means do have to be provided to hold the clamping strip in place, and these could be magnetic strips and the like.
EP19880202536 1987-11-12 1988-11-14 Lit pour traitement thérapeutique d'un patient Expired - Lifetime EP0317009B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88202536T ATE72105T1 (de) 1987-11-12 1988-11-14 Bett fuer heilkundige behandlung eines patienten.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8702712 1987-11-12
NL8702712A NL8702712A (nl) 1987-11-12 1987-11-12 Bed voor therapeutische behandeling van een patient.

Publications (2)

Publication Number Publication Date
EP0317009A1 true EP0317009A1 (fr) 1989-05-24
EP0317009B1 EP0317009B1 (fr) 1992-01-29

Family

ID=19850910

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880202536 Expired - Lifetime EP0317009B1 (fr) 1987-11-12 1988-11-14 Lit pour traitement thérapeutique d'un patient

Country Status (4)

Country Link
EP (1) EP0317009B1 (fr)
AT (1) ATE72105T1 (fr)
DE (1) DE3868235D1 (fr)
NL (1) NL8702712A (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4017365A1 (de) * 1990-05-30 1992-02-13 Heinrich Prof Dr Ing Reents Verfahren mit den dazu gehoerigen vorrichtungen zur schwebenden lagerung von patienten auf luft bei gleichzeitiger reanimationsfaehigkeit
US5402542A (en) * 1993-04-22 1995-04-04 Ssi Medical Services, Inc. Fluidized patient support with improved temperature control
WO1995028904A1 (fr) * 1994-04-20 1995-11-02 Risch Thomas M Lit d'hydrotherapie etanche
US5539943A (en) * 1994-03-08 1996-07-30 Ssi Medical Services, Inc. Apparatus and method for percussion of fluidized support surface
EP0821559A1 (fr) * 1995-04-25 1998-02-04 Kinetic Concepts, Inc. Lit a matelas d'air et a surface fluidisee des bourrelets et procedes s'y rapportant
WO2000057830A1 (fr) * 1999-03-29 2000-10-05 Kinetic Concepts, Inc. Lit fluidise a base de billes, dote d'un diffuseur de billes gonflable
US6721979B1 (en) 1995-04-25 2004-04-20 Kci Licensing, Inc. Air bed with fluidized bead surface and related methods
US6934990B2 (en) * 2002-12-20 2005-08-30 Tom Rapisarda Non-liquid buoyant bedding
US10130537B2 (en) * 2016-04-01 2018-11-20 Utopix Medical, LLC Tilt-tip moldable total care bed

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10238560B2 (en) 2013-03-13 2019-03-26 Hill-Rom Services, Inc. Air fluidized therapy bed having pulmonary therapy

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3428973A (en) * 1966-03-17 1969-02-25 Thomas S Hargest Fluidized supporting apparatus
US4564965A (en) * 1984-01-17 1986-01-21 Support Systems International, Inc. Fluidized patient support system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3428973A (en) * 1966-03-17 1969-02-25 Thomas S Hargest Fluidized supporting apparatus
US4564965A (en) * 1984-01-17 1986-01-21 Support Systems International, Inc. Fluidized patient support system

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4017365A1 (de) * 1990-05-30 1992-02-13 Heinrich Prof Dr Ing Reents Verfahren mit den dazu gehoerigen vorrichtungen zur schwebenden lagerung von patienten auf luft bei gleichzeitiger reanimationsfaehigkeit
US5402542A (en) * 1993-04-22 1995-04-04 Ssi Medical Services, Inc. Fluidized patient support with improved temperature control
US5539943A (en) * 1994-03-08 1996-07-30 Ssi Medical Services, Inc. Apparatus and method for percussion of fluidized support surface
WO1995028904A1 (fr) * 1994-04-20 1995-11-02 Risch Thomas M Lit d'hydrotherapie etanche
US5540651A (en) * 1994-04-20 1996-07-30 Thomas M. Risch Waterproof hydrotherapy bed
EP0821559A4 (fr) * 1995-04-25 2000-06-14 Kinetic Concepts Inc Lit a matelas d'air et a surface fluidisee des bourrelets et procedes s'y rapportant
EP0821559A1 (fr) * 1995-04-25 1998-02-04 Kinetic Concepts, Inc. Lit a matelas d'air et a surface fluidisee des bourrelets et procedes s'y rapportant
US6721979B1 (en) 1995-04-25 2004-04-20 Kci Licensing, Inc. Air bed with fluidized bead surface and related methods
WO2000057830A1 (fr) * 1999-03-29 2000-10-05 Kinetic Concepts, Inc. Lit fluidise a base de billes, dote d'un diffuseur de billes gonflable
US6934990B2 (en) * 2002-12-20 2005-08-30 Tom Rapisarda Non-liquid buoyant bedding
US10130537B2 (en) * 2016-04-01 2018-11-20 Utopix Medical, LLC Tilt-tip moldable total care bed
US10137043B2 (en) * 2016-04-01 2018-11-27 Utopix Medical, LLC Tilt-tip moldable total care bed
US10413466B2 (en) 2016-04-01 2019-09-17 Utopix Medical, LLC Tilt-tip moldable total care bed

Also Published As

Publication number Publication date
ATE72105T1 (de) 1992-02-15
NL8702712A (nl) 1989-06-01
EP0317009B1 (fr) 1992-01-29
DE3868235D1 (de) 1992-03-12

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