US3689945A - Stretchers - Google Patents

Stretchers Download PDF

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Publication number
US3689945A
US3689945A US67504A US3689945DA US3689945A US 3689945 A US3689945 A US 3689945A US 67504 A US67504 A US 67504A US 3689945D A US3689945D A US 3689945DA US 3689945 A US3689945 A US 3689945A
Authority
US
United States
Prior art keywords
stretcher
piston
tubular portion
mattress
poles
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.)
Expired - Lifetime
Application number
US67504A
Other languages
English (en)
Inventor
Asmund S Laerdal
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
Priority claimed from DE19691944646 external-priority patent/DE1944646C3/de
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3689945A publication Critical patent/US3689945A/en
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
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Measuring devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • 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
    • A61G1/00—Stretchers
    • A61G1/04—Parts, details or accessories, e.g. head-, foot-, or like rests specially adapted for stretchers
    • 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
    • A61G7/05753—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 air-evacuated, e.g. in order to adapt to the form of the patient
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S5/00—Beds
    • Y10S5/911—Bead containing
    • Y10S5/913—Bead containing with suction means

Definitions

  • ABSTRACT A stretcher with a vacuum mattress and carrier poles for it, the vacuum mattress having an air impermeable cover enclosing an interior which can alternatively be filled with air or evacuated by a vacuum pump, and which contains a granular material.
  • a vacuum pump is mounted in at least one tubular region of one or both carrier poles.
  • Stretchers with vacuum mattresses are known in which the interior of an air impermeable cover, which can alternatively be filled with air .or evacuated, contains a granular material, for example plastics granules.
  • a granular material for example plastics granules.
  • the inner space is filled with air, the granules can be distributed as desired in accordance with external local pressure influences, whilst with the inner space evacuated it consolidates under the inward acting pressure of the flexible covering, in the particular form of distribution which it has assumed, to give a body which is rigid to an extent varying with the order of magnitude of the'pressure reduction applied. If a patient is placed on the airfilled vacuum mattress, the granular material distributes itself in accordance with the contour of the body.
  • the granular material consolidates in the form which it has assumed and hence provides a firm hold, acting over a large area and secure against displacements, for the patient on the stretcher, and with this hold it is possible to transport the patient without hazard and without painful pressure even if the stretcher is in an inclined position.
  • a stretcher comprising two carrier poles, an air impermeable mattress cover supported by said poles and provided with a granular filling, and a vacuum pump in a tubular portion of at least one of said poles and operatively connected to the interior of said mattress cover.
  • the vacuum pump is always available and can be connected to the mattress as a preparatory measure without the transportation of the stretcher thereby being made more involved and requiring additional hands to hold it.
  • only one of the carrier poles is provided with a vacuum pump.
  • several pumps for one stretcher for example one pump in each carrier pole or two pumps in one carrier pole which can, in view of the relative forces which arise, be operated simultaneously by two persons in opposite working cycles.
  • the carrier poles are tubular either completely or at least in the region of the vacuum pump, so that a simple vacuum pump, operating with a reciprocable piston, can be incorporated in the inner space of the pole.
  • the pump can in this case fundamentally be inserted into the carrier pole as a self-contained component.
  • the wall of the tubular region of the pole is constructed as a cylinder, the
  • the handle is arranged so that it can be drawn out of the end face of the pole, since this simplified guiding the piston and the handle and does not weaken the carrier pole.
  • the carrier poles can be integrally or detachable connected to the vacuum mattress.
  • the suction chamber of the pump directly to an orifice in the cover.
  • a non-return valve which seals off the interior of the cover can conveniently be provided at the pump outlet.
  • the non-return valve is preferably provided on the orifice or orifices of the mattress, so that the mattress can be transported separately from the carrier poles, and possibly in a nar row space, whilst maintaining the evacuated condition.
  • carrier poles which consist of at least two parts, displaceable relative to one another in the longitudinal direction.
  • one part of the pole can be pushed into another tubular part of the pole, at the free end of which the pump is located.
  • the total length of the carrier pole can be changed so that the stretcher, with the patient strapped to it, can be more conveniently transported through narrow staircases or in small passenger lifts.
  • a particular position of the body of the patient is frequently necessary, which can only be brought about if the stretcher is appropriately shortened, in order to be able to carry out requisite heart massages at short intervals.
  • FIG. 1 is a schematic perspective view of one embodiment of the stretcher according to the invention, on which a patient is placed;
  • FIG. 2 shows a schematic representation, in crosssection, of a vacuum pump of the stretcher of FIG. 1
  • the vacuum mattress l is detachably supported by the carrier poles 3 and 4 by means of straps 2.
  • drawing shows how the mattress 1 which has been airfilled for example through one of the air passage orifices 5 or a shut-off valve can easily deformably be adapted to the body shape and limb positions of the patient. If the knees are bent, the patient can thereby even be transported in a sitting position.
  • the mattress l can at any time be separated from the carrier poles 3 and 4 and hence also from the vacuum pump 7, without air entering and the shape retention of the mattress thereby being lost.
  • the vacuum pump 7, formed in the end region 6 of the carrier pole 3, is shown in schematic cross-section in FIG. 2(The wall 9 of the tubular region 6 of the carrier pole 3 at the same time serves as the cylinder for the piston 10 of the pump, carried therein, which is connected through its piston rod 11 with an operating handle 12 projecting from the end face of the end region 6 of the pole 3.
  • the piston 10 carries a lip seal 13, which opens or closes depending on the pressure difference on the two sides of the piston and hence forms, in addition to the non-return valve in the air passage orifice 5 of the covering 8, the second valve required for operation of the pump.
  • the piston rod 11 is hollow and is connected at its piston end, via an orifice 14, with the annular space 15 between the cylinder and the piston rod.
  • the cavity 16 of the piston rod 1 l is in turn connected to the atmosphere via an outlet 17.
  • the piston rod 11 is particularly resistant to bending because of its hollow form and hence contributes to a reduction in weight, without the output space of the pump being impaired.
  • the suction space 19 of the pump, formed in front of the piston 10 and shut off at 18, is connected via a connecting orifice 20 and a pipeline shown in broken lines, with the orifice 5 of the covering 8.
  • One or more hoses which can also be of difierent length, for adaptation to different mattresses or their intended shape, can be stored in the cavity 16 of the piston rod 1 1, which is for example accessible by undoing the actuating handle 12, which can be in the form of a detachable end cap.
  • the broken arrows at 20, 14 and 17 show the flow of air during the suction stroke, which results from pulling the handle 12 away from the end region of the pole 3, in its longitudinal direction.
  • the non-return valve in the orifice 5 of the covering 8 closes, so that a pressure is built up in the suction chamber 19 and the lip seal 20 opens in the direction of the output space 15, 16 of the pump and allows the accumulated air to pass through.
  • a reduced pressure relative to the pressure in the output space 15, 16 results in the suction chamber 19, so that the lip seal rests against the cylinder inner wall to form a seal, as a result of which the flow of air indicated by the broken arrows again results.
  • a stretcher comprising:
  • a stretcher according to claim 4 and further comprising a lip seal carried by said piston and engaging said tubular portion effective to act as a valve.
  • a stretcher according to claim 2 and further comprising a hollow piston rod connected to said piston and defining, with said tubular portion, an annular space therebetween, and means defining an aperture in said piston rod communicating the hollow interior thereof with said annular space.
  • said mattress cover further comprises at least one nonretum valve.
  • a stretcher according to claim 1, wherein the carrier poles are each formed as at least two parts which are selectively mutually longitudinally displaceable, said vacuum pump being in an end one of said parts.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Nursing (AREA)
  • Massaging Devices (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Invalid Beds And Related Equipment (AREA)
US67504A 1969-09-03 1970-08-27 Stretchers Expired - Lifetime US3689945A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691944646 DE1944646C3 (de) 1969-09-03 Tragbare mit Vakuummatratze

Publications (1)

Publication Number Publication Date
US3689945A true US3689945A (en) 1972-09-12

Family

ID=5744487

Family Applications (1)

Application Number Title Priority Date Filing Date
US67504A Expired - Lifetime US3689945A (en) 1969-09-03 1970-08-27 Stretchers

Country Status (3)

Country Link
US (1) US3689945A (https=)
FR (1) FR2060735A5 (https=)
GB (1) GB1276422A (https=)

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3845512A (en) * 1973-05-09 1974-11-05 Raymond Lee Organization Inc Infant bed for use on horseback
US3859677A (en) * 1973-10-03 1975-01-14 Invalid Carrier Inc Invalid carrying sling
EP0023115A1 (en) * 1979-07-13 1981-01-28 National Aeronautics And Space Administration Spine immobilization apparatus
US4332043A (en) * 1980-01-14 1982-06-01 Larson Lynn D Waterbed mattress
US4594743A (en) * 1984-07-10 1986-06-17 Siesta Corp. Air support bed
US5009318A (en) * 1986-04-09 1991-04-23 Lepinoy Industrie Method, device and padded product for maintaining an object
US5103517A (en) * 1990-08-18 1992-04-14 The Institute For Rehabilitation And Research Disposable surgical pad
US5556169A (en) * 1994-07-15 1996-09-17 Parrish; Milton E. Multi-layer conformable support system
US5749374A (en) * 1994-09-14 1998-05-12 Cardi-Act, L.L.C. Patient-transport and treatment apparatus
US5885084A (en) * 1997-03-12 1999-03-23 Cpr Prompt, L.L.C. Cardiopulmonary resuscitation manikin
US6065165A (en) * 1997-08-22 2000-05-23 Hill-Rom, Inc. Prone patient apparatus
US6308353B1 (en) * 1999-04-09 2001-10-30 The Or Group, Inc. Method and apparatus for positioning a patient
US6374439B2 (en) 1997-07-14 2002-04-23 Hill-Rom Services, Inc. Stretcher head rest
US6425399B1 (en) 1997-08-18 2002-07-30 William Hoster, Jr. Emergency inflatable spinal support device
US6780017B2 (en) 1998-09-21 2004-08-24 Cardiac Science, Inc. Cardiopulmonary resuscitation manikin with replaceable lung bag and installation tool
WO2004082544A1 (en) * 2003-03-18 2004-09-30 Bo Renberg Formable laminate of any circumference
US6817363B2 (en) 2000-07-14 2004-11-16 Hill-Rom Services, Inc. Pulmonary therapy apparatus
US20040226091A1 (en) * 1997-08-08 2004-11-18 Hill-Rom Services, Inc. Hospital bed
US6862759B2 (en) 1998-06-26 2005-03-08 Hill-Rom Services, Inc. Hospital bed
US20050229313A1 (en) * 2002-02-26 2005-10-20 Brian Tomcany Patient immobilization device
US20050241068A1 (en) * 2002-02-26 2005-11-03 Brian Tomcany Patient immobilization device
US20060225213A1 (en) * 2005-04-11 2006-10-12 Brian Tomcany Patient immobilization device with diagnostic capabilities
US7137160B2 (en) 1999-04-21 2006-11-21 Hill-Rom Services, Inc. Proning bed
NL1033142C2 (nl) * 2006-05-03 2007-11-06 Pijnloos B V Matras.
US20110047706A1 (en) * 2009-09-02 2011-03-03 Eugene Lloyd Hiebert Surgical positioning system
US8465293B2 (en) 2005-09-01 2013-06-18 Prestan Products Llc Medical training device
US9092995B2 (en) 2005-09-01 2015-07-28 Prestan Products Llc Medical training device
US9549865B2 (en) 2009-09-02 2017-01-24 Allen Medical Systems, Inc. Surgical positioning system
US10206843B2 (en) 2012-04-23 2019-02-19 Hug-U-Vac Surgical Positioning Systems, Inc. Patient positioning system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2464066A1 (fr) * 1979-08-31 1981-03-06 Pelosse Andre Support enveloppant pour soutenir un patient pendant les soins
NO317216B1 (no) * 1999-07-26 2004-09-20 Less As Bare, baerehandtak for bare samt fremgangsmate for fremstilling av baren

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2682670A (en) * 1950-09-21 1954-07-06 Clifford D Crump Litter bed
US3044410A (en) * 1957-04-08 1962-07-17 John W Sandberg Combination telescopic oar and pump
US3068494A (en) * 1961-01-16 1962-12-18 Monroe Fabricators Inc Air pump for inflatable structures
US3112502A (en) * 1961-05-03 1963-12-03 Hodgman Rubber Company Pump for air matresses
US3164850A (en) * 1963-11-22 1965-01-12 Bern B Grubb Emergency patient supporting device
US3428973A (en) * 1966-03-17 1969-02-25 Thomas S Hargest Fluidized supporting apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2682670A (en) * 1950-09-21 1954-07-06 Clifford D Crump Litter bed
US3044410A (en) * 1957-04-08 1962-07-17 John W Sandberg Combination telescopic oar and pump
US3068494A (en) * 1961-01-16 1962-12-18 Monroe Fabricators Inc Air pump for inflatable structures
US3112502A (en) * 1961-05-03 1963-12-03 Hodgman Rubber Company Pump for air matresses
US3164850A (en) * 1963-11-22 1965-01-12 Bern B Grubb Emergency patient supporting device
US3428973A (en) * 1966-03-17 1969-02-25 Thomas S Hargest Fluidized supporting apparatus

Cited By (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3845512A (en) * 1973-05-09 1974-11-05 Raymond Lee Organization Inc Infant bed for use on horseback
US3859677A (en) * 1973-10-03 1975-01-14 Invalid Carrier Inc Invalid carrying sling
EP0023115A1 (en) * 1979-07-13 1981-01-28 National Aeronautics And Space Administration Spine immobilization apparatus
US4332043A (en) * 1980-01-14 1982-06-01 Larson Lynn D Waterbed mattress
US4594743A (en) * 1984-07-10 1986-06-17 Siesta Corp. Air support bed
US5009318A (en) * 1986-04-09 1991-04-23 Lepinoy Industrie Method, device and padded product for maintaining an object
US5103517A (en) * 1990-08-18 1992-04-14 The Institute For Rehabilitation And Research Disposable surgical pad
US5556169A (en) * 1994-07-15 1996-09-17 Parrish; Milton E. Multi-layer conformable support system
US5749374A (en) * 1994-09-14 1998-05-12 Cardi-Act, L.L.C. Patient-transport and treatment apparatus
US5885084A (en) * 1997-03-12 1999-03-23 Cpr Prompt, L.L.C. Cardiopulmonary resuscitation manikin
US6374439B2 (en) 1997-07-14 2002-04-23 Hill-Rom Services, Inc. Stretcher head rest
US20040226091A1 (en) * 1997-08-08 2004-11-18 Hill-Rom Services, Inc. Hospital bed
US6425399B1 (en) 1997-08-18 2002-07-30 William Hoster, Jr. Emergency inflatable spinal support device
US6065165A (en) * 1997-08-22 2000-05-23 Hill-Rom, Inc. Prone patient apparatus
US6862759B2 (en) 1998-06-26 2005-03-08 Hill-Rom Services, Inc. Hospital bed
US6780017B2 (en) 1998-09-21 2004-08-24 Cardiac Science, Inc. Cardiopulmonary resuscitation manikin with replaceable lung bag and installation tool
US6308353B1 (en) * 1999-04-09 2001-10-30 The Or Group, Inc. Method and apparatus for positioning a patient
US7137160B2 (en) 1999-04-21 2006-11-21 Hill-Rom Services, Inc. Proning bed
US7931607B2 (en) 2000-07-14 2011-04-26 Hill-Rom Services, Inc. Pulmonary therapy apparatus
US6817363B2 (en) 2000-07-14 2004-11-16 Hill-Rom Services, Inc. Pulmonary therapy apparatus
US7343916B2 (en) 2000-07-14 2008-03-18 Hill-Rom Services, Inc. Pulmonary therapy apparatus
US20050241068A1 (en) * 2002-02-26 2005-11-03 Brian Tomcany Patient immobilization device
US20050229313A1 (en) * 2002-02-26 2005-10-20 Brian Tomcany Patient immobilization device
US7165278B2 (en) 2002-02-26 2007-01-23 Brian Tomcany Patient immobilization device
US7426761B2 (en) 2002-02-26 2008-09-23 Brian Tomcany Patient immobilization device
WO2004082544A1 (en) * 2003-03-18 2004-09-30 Bo Renberg Formable laminate of any circumference
US7360264B2 (en) 2005-04-11 2008-04-22 Brian Tomcany Patient immobilization device with diagnostic capabilities
US20060225213A1 (en) * 2005-04-11 2006-10-12 Brian Tomcany Patient immobilization device with diagnostic capabilities
US9092995B2 (en) 2005-09-01 2015-07-28 Prestan Products Llc Medical training device
US8465293B2 (en) 2005-09-01 2013-06-18 Prestan Products Llc Medical training device
EA014123B1 (ru) * 2006-05-03 2010-10-29 Б.В. Пейнлоос Матрас
US20100031448A1 (en) * 2006-05-03 2010-02-11 Bernardus Ludgerus Lubertus Hijlkema Mattress
US8166589B2 (en) 2006-05-03 2012-05-01 B.V. Pijnloos Mattress
CN101484047B (zh) * 2006-05-03 2012-07-04 皮杰恩鲁斯有限公司 床垫
WO2007126311A3 (en) * 2006-05-03 2008-10-16 Pijnloos B V Mattress
NL1033142C2 (nl) * 2006-05-03 2007-11-06 Pijnloos B V Matras.
US20110047706A1 (en) * 2009-09-02 2011-03-03 Eugene Lloyd Hiebert Surgical positioning system
US8469911B2 (en) * 2009-09-02 2013-06-25 Eugene Lloyd Hiebert Surgical positioning system
US8636680B2 (en) 2009-09-02 2014-01-28 Eugene Lloyd Hiebert Surgical positioning system
US9549865B2 (en) 2009-09-02 2017-01-24 Allen Medical Systems, Inc. Surgical positioning system
US10391014B2 (en) 2009-09-02 2019-08-27 Allen Medical Systems, Inc. Surgical positioning system
US10206843B2 (en) 2012-04-23 2019-02-19 Hug-U-Vac Surgical Positioning Systems, Inc. Patient positioning system

Also Published As

Publication number Publication date
FR2060735A5 (https=) 1971-06-18
DE1944646B2 (de) 1975-12-11
GB1276422A (en) 1972-06-01
DE1944646A1 (de) 1971-03-11

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