US3317934A - Change in pressure mattress - Google Patents

Change in pressure mattress Download PDF

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Publication number
US3317934A
US3317934A US402811A US40281164A US3317934A US 3317934 A US3317934 A US 3317934A US 402811 A US402811 A US 402811A US 40281164 A US40281164 A US 40281164A US 3317934 A US3317934 A US 3317934A
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US
United States
Prior art keywords
chambers
liquid
pump
mattress
tank
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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.)
Expired - Lifetime
Application number
US402811A
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English (en)
Inventor
Hinrichs Arnold
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Individual
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Individual
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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

Definitions

  • This invention relates to a change in pressure mattress and, in particular, to a pulsating bed mattress.
  • So-called change in pressure mattresses are known which are composed of several separate flexible air chambers into which air is alternately pumped so that one set of air chambers is inflated while the other set of air chambers is deflated.
  • These separated air chambers are usually combined into two sets of chambers, each in a closed system and with the chambers being evenly distributed across the surface of the mattress.
  • the mattress is composed of tubes parallel to each other and with alternate tubes combined into a system forming a set of air chambers. Other methods of construction are also used.
  • the two sets of air chambers can be connected to the opposite sides of a double-action air pump.
  • each set of air chambers have been actuated by an electrically driven air pump which is switched on and off by an alternating switch.
  • the air valves for the change in pressure mattress can b electrically controlled.
  • the object of this invention is to improve upon the construction and operation of the known change in pressure mattresses.
  • the separate sets of chambers are filled with liquid and connected to pump means for the reversal of the flow of liquid through the alternate sets of chambers.
  • Heat exchanger means are employed for each set of chambers. This has the advantage that the mattress can be maintained at a predetermined temperature. Heat can be introduced into the liquid for heating the mattress, and likewise, the liquid can be refrigerated to cool the mattress.
  • a separate pump can be provided for each set of chambers, respectively.
  • the liquid pump is a double-action piston pump in which each set of chambers is in communication with a separate cylinder of the pump.
  • FIGURE 1 is a schematic view of the apparatus of this invention
  • FIGURE 2 is a partial View of FIGURE 1 showing the difference in liquid level
  • FIGURE 3 is a schematic view of a modified pump arrangement of this invention.
  • the mattress 1 contain-s a first set of chambers 2, including the chambers 2a,.2b and 2c, and a second set of chambers 3, including the chambers 3a, 3b and 30. These chambers are formed between the folds of a flexible membrane A which is contained between upper and lower flexible watertight members. Two tube-like systems 2 and 3 are thus formed in this manner.
  • the system 2 on one side is connected to a liquid supply pipe 4 and on the other side to the drain pipe 5.
  • the system 3 is connected on one side to the liquid supply pipe 6 and onthe other side to the drain pipe 7.
  • Liquid supply pipe 4 extends to a pump 10 mounted within a liquid supply tank 11.
  • a closed liquid flow United States Patent 0 3,317,934 Patented May 9, 1967 system thus extends from pump 10 through pipe 4, chamber system 2, and drain pipe 5.
  • liquid supply pipe 6 for system 3 is joined to a pump 12 contained within a tank 13 to form a closed system by which liquid flows from pump 12 through pipe 6 and through chambers 3 and back through drain pipe 7 into tank 13.
  • a heat exchanger 14 is mounted in tank 11 and connected to a corresponding heat exchanger 14a in tank 13. These heat exchangers are supplied with either heated or refrigerated fluid.
  • Tanks 11 and 13 are also connected by pipes 15 and 16 to a reversible air pump B so that this pump can produce a higher than atmospheric pressure in one tank while causing a lower atmospheric pressure in the other tank.
  • the air pump B has produced a higher pressure in tank 11 to depress the liquid to the level 17, while in tank 13, the liquid level 18 is raised.
  • the pump has been reversed so that a less than atmospheric pressure produces the liquid level 19 in tank 11 and a greater than atmospheric pressure in tank 13 to form the liquid level 20.
  • the operation of the pump 10 with or without the use of the air pump B, will inflate the set of liquid chambers 2 while deflating or partially collapsing the set of liquid chambers 3. Reversal of the direction of pumps 10 and 12 will produce the opposite result, with or without. the use of air pump B, as shown in FIGURE 2.
  • the pumps 10 and 12 have been replaced by a double-action piston pump, with each tank 11 and 13 being connected to a different cylinder in the pump.
  • each tank 11 and 13 being connected to a different cylinder in the pump.
  • one set of liquid chambers can be inflated while the other set of chambers is being deflated and vice versa.
  • a change in pressure mattress comprising liquid impermeable flexible membrane means forming two separate adjacent sets of liquid receiving hollow chambers adapted to be alternately expanded and at least partially collapsed, tank means for supplying liquid to each set of chambers, reversible pump means associated with said tank means for forcing liquid into one set of chambers while withdrawing liquid from the other set of chambers and for recirculating the liquid through said chambers, and heat exchanger means in said tank means.
  • said pump means comprising a double action piston pump having each cylinder thereof in communication with one of'said sets of chambers, respectively.

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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)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
US402811A 1963-10-24 1964-10-09 Change in pressure mattress Expired - Lifetime US3317934A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED42794A DE1220980B (de) 1963-10-24 1963-10-24 Druckwechselmatratze

Publications (1)

Publication Number Publication Date
US3317934A true US3317934A (en) 1967-05-09

Family

ID=7047117

Family Applications (1)

Application Number Title Priority Date Filing Date
US402811A Expired - Lifetime US3317934A (en) 1963-10-24 1964-10-09 Change in pressure mattress

Country Status (6)

Country Link
US (1) US3317934A (xx)
BE (1) BE654740A (xx)
DE (1) DE1220980B (xx)
GB (1) GB1015448A (xx)
NL (1) NL6412213A (xx)
SE (1) SE303020B (xx)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4059909A (en) * 1972-02-09 1977-11-29 The Singer Company Neural receptor augmented G seat system
US4088124A (en) * 1975-12-10 1978-05-09 The Board Of Trustees Of Leland Stanford Junior University Method for treating premature infants
US4634083A (en) * 1984-09-11 1987-01-06 Cae Electronics Ltd. Helicopter seat isolation system
US4635620A (en) * 1982-04-23 1987-01-13 Ricchio Dominic A Method for improved water therapy
US4667358A (en) * 1985-06-12 1987-05-26 Penterman Dennis P Water bed with wave generation and control mechanism
US5010608A (en) * 1989-10-11 1991-04-30 Du Pont Canada Inc. Support system for reducing formation of decubitus ulcers
US5074286A (en) * 1990-08-16 1991-12-24 Gillaspie Steve L Spinal massage table
US5103518A (en) * 1989-08-01 1992-04-14 Bio Clinic Corporation Alternating pressure pad
US5514078A (en) * 1993-11-04 1996-05-07 Palmer; Sidney C Dual pulsating fluid distributor for use with hydro-massage table
US5606754A (en) * 1989-03-09 1997-03-04 Ssi Medical Services, Inc. Vibratory patient support system
US5850644A (en) * 1995-08-22 1998-12-22 Hsia; Yu Chun Temperature and pressure control means for water bed
US5983429A (en) * 1994-02-15 1999-11-16 Stacy; Richard B. Method and apparatus for supporting and for supplying therapy to a patient
US20050022308A1 (en) * 2000-07-18 2005-02-03 Totton Wanda J. Air-powered low interface pressure support surface
US20070060015A1 (en) * 2004-05-11 2007-03-15 Julian Glatt Sleep inducing and/or comforting device for infants
US20080307582A1 (en) * 2007-06-18 2008-12-18 Thierry Flocard Support Device of the Mattress Type Comprising A Heterogeneous Inflatable Structure
US20090100604A1 (en) * 2007-10-18 2009-04-23 Jean-Luc Caminade Method of inflating, in alternating manner, a support device having inflatable cells, and a device for implementing the method
US20110047703A1 (en) * 2009-08-31 2011-03-03 Jean-Francois Tarsaud Lateral tilt device
CN104188772A (zh) * 2014-09-28 2014-12-10 马同金 自助按摩防褥疮轮椅
US9308393B1 (en) 2015-01-15 2016-04-12 Dri-Em, Inc. Bed drying device, UV lights for bedsores
US10660810B1 (en) * 2015-05-17 2020-05-26 Thinair Surfaces Llc Support apparatus and method with shear relief
US12042453B2 (en) 2019-02-26 2024-07-23 Hill-Rom Services, Inc. Patient positioning apparatus and mattress

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3844624A1 (de) * 1988-08-12 1990-03-01 Hcm Ag Untermatratze

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2245909A (en) * 1937-10-19 1941-06-17 Enfiajian Helen Cushioning and supporting device
US2965372A (en) * 1958-07-08 1960-12-20 Wright Barry Corp Pneumatic isolator
US2998817A (en) * 1959-08-07 1961-09-05 Gary Armstrong Stebbins Inflatable massaging and cooling mattress
US3199124A (en) * 1963-03-29 1965-08-10 R D Grant Company Air mattress

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1009355B (de) * 1954-06-25 1957-05-29 Draegerwerk Ag Luftmatratze mit mehreren voneinander getrennten Luftraeumen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2245909A (en) * 1937-10-19 1941-06-17 Enfiajian Helen Cushioning and supporting device
US2965372A (en) * 1958-07-08 1960-12-20 Wright Barry Corp Pneumatic isolator
US2998817A (en) * 1959-08-07 1961-09-05 Gary Armstrong Stebbins Inflatable massaging and cooling mattress
US3199124A (en) * 1963-03-29 1965-08-10 R D Grant Company Air mattress

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4059909A (en) * 1972-02-09 1977-11-29 The Singer Company Neural receptor augmented G seat system
US4088124A (en) * 1975-12-10 1978-05-09 The Board Of Trustees Of Leland Stanford Junior University Method for treating premature infants
US4635620A (en) * 1982-04-23 1987-01-13 Ricchio Dominic A Method for improved water therapy
US4634083A (en) * 1984-09-11 1987-01-06 Cae Electronics Ltd. Helicopter seat isolation system
US4667358A (en) * 1985-06-12 1987-05-26 Penterman Dennis P Water bed with wave generation and control mechanism
US5606754A (en) * 1989-03-09 1997-03-04 Ssi Medical Services, Inc. Vibratory patient support system
US6415814B1 (en) 1989-03-09 2002-07-09 Hill-Rom Services, Inc. Vibratory patient support system
US20050034764A1 (en) * 1989-03-09 2005-02-17 Hanh Barry D. Patient support system
US6820640B2 (en) 1989-03-09 2004-11-23 Hill-Rom Services, Inc. Vibratory patient support system
US6098222A (en) * 1989-03-09 2000-08-08 Hill-Rom Company, Inc. Vibratory patient support system
US5103518A (en) * 1989-08-01 1992-04-14 Bio Clinic Corporation Alternating pressure pad
US5010608A (en) * 1989-10-11 1991-04-30 Du Pont Canada Inc. Support system for reducing formation of decubitus ulcers
US5074286A (en) * 1990-08-16 1991-12-24 Gillaspie Steve L Spinal massage table
US5514078A (en) * 1993-11-04 1996-05-07 Palmer; Sidney C Dual pulsating fluid distributor for use with hydro-massage table
US5983429A (en) * 1994-02-15 1999-11-16 Stacy; Richard B. Method and apparatus for supporting and for supplying therapy to a patient
US5850644A (en) * 1995-08-22 1998-12-22 Hsia; Yu Chun Temperature and pressure control means for water bed
US20050022308A1 (en) * 2000-07-18 2005-02-03 Totton Wanda J. Air-powered low interface pressure support surface
US20070234481A1 (en) * 2000-07-18 2007-10-11 Totton Wanda J Air-powered low interface pressure support surface
US7296315B2 (en) * 2000-07-18 2007-11-20 Span-America Medical Systems, Inc. Air-powered low interface pressure support surface
US10827844B2 (en) 2000-07-18 2020-11-10 Span-America Medical Systems, Inc. Method for the treatment and prevention of decubitus ulcers for a patient due to interface of the patient with an air-powered low interface pressure overlay
US10722041B2 (en) 2000-07-18 2020-07-28 Span-America Medical Systems, Inc. Air-powered low interface pressure overlay
US20070060015A1 (en) * 2004-05-11 2007-03-15 Julian Glatt Sleep inducing and/or comforting device for infants
US7849544B2 (en) 2007-06-18 2010-12-14 Hill-Rom Industries Sa Support device of the mattress type comprising a heterogeneous inflatable structure
US20080307582A1 (en) * 2007-06-18 2008-12-18 Thierry Flocard Support Device of the Mattress Type Comprising A Heterogeneous Inflatable Structure
US8104126B2 (en) 2007-10-18 2012-01-31 Hill-Rom Industries Sa Method of inflating, in alternating manner, a support device having inflatable cells, and a device for implementing the method
US20090100604A1 (en) * 2007-10-18 2009-04-23 Jean-Luc Caminade Method of inflating, in alternating manner, a support device having inflatable cells, and a device for implementing the method
US20110047703A1 (en) * 2009-08-31 2011-03-03 Jean-Francois Tarsaud Lateral tilt device
US8429774B2 (en) 2009-08-31 2013-04-30 Hill-Rom Industries Sa Lateral tilt device
US8601622B1 (en) 2009-08-31 2013-12-10 Hill-Rom Industries S.A. Patient support apparatus including a lateral tilt device
CN104188772A (zh) * 2014-09-28 2014-12-10 马同金 自助按摩防褥疮轮椅
US9308393B1 (en) 2015-01-15 2016-04-12 Dri-Em, Inc. Bed drying device, UV lights for bedsores
US10660810B1 (en) * 2015-05-17 2020-05-26 Thinair Surfaces Llc Support apparatus and method with shear relief
US12042453B2 (en) 2019-02-26 2024-07-23 Hill-Rom Services, Inc. Patient positioning apparatus and mattress

Also Published As

Publication number Publication date
NL6412213A (xx) 1965-04-26
GB1015448A (en) 1965-12-31
SE303020B (xx) 1968-08-12
BE654740A (xx) 1965-02-15
DE1220980B (de) 1966-07-14

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