US3689949A - Flotation apparatus - Google Patents

Flotation apparatus Download PDF

Info

Publication number
US3689949A
US3689949A US488202A US3689949DA US3689949A US 3689949 A US3689949 A US 3689949A US 488202 A US488202 A US 488202A US 3689949D A US3689949D A US 3689949DA US 3689949 A US3689949 A US 3689949A
Authority
US
United States
Prior art keywords
bag
base
cavity
sheet
weight
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
US488202A
Other languages
English (en)
Inventor
James D Weinstein
Barry A Davidson
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.)
Kimberly Clark Tissue Co
Original Assignee
Scott Paper Co
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 Scott Paper Co filed Critical Scott Paper Co
Application granted granted Critical
Publication of US3689949A publication Critical patent/US3689949A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • A47C27/14—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays
    • A47C27/18—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays in combination with inflatable bodies
    • 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 or cushions
    • A47C27/085—Fluid mattresses or cushions of liquid type, e.g. filled with water or gel
    • 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
    • A61G7/05715—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor with modular blocks, or inserts, with layers of different material
    • 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
    • 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
    • Y10S297/00—Chairs and seats
    • Y10S297/03—Pneumatic

Definitions

  • This in- UNITED STATES PATENTS vention provides a flotation structure for buoyantly, or approximately buoyantly, supporting the weight of a g 21122. patients body by devices which weigh much less than 253447l 12/1950 o ei X previously known flotation devices.
  • PATENTEBsEP 12 I972 SHEET 0F 4 mm 5 mm 0 I N VENTOR, JAMES D. WElNSTE ⁇ N BY b/mny A DAVID$0IU wa /21w mam QTTOQ/l/EY FLOTATION APPARATUS BACKGROUND OF THE INVENTION
  • bedridden persons often develop bed sores, and to minimize this likelihood of developing bed sores, it has been previously proposed to buoyantly support the person, whereby the person weight is supported over a large surface area, thereby virtually eliminating localized areas of high enough pressure to develop bed sores.
  • buoyant supporting apparatuses i.e., water beds
  • the heavy weight has been due primarily to the fact that the water bed, in essence, comprises a large tank filled with water. For instance, in a tank measuring 7 by 3 by 1% feet, filled with water to a depth of one foot, the weight of the water alone is about 1,300 pounds. This water weight, plus the weight of the tank and its support, might be more weight than 'an old building could safely carry. It is, therefore, a further object of this invention to reduce the weight of the flotation apparatus by reducing the volume of fluid needed to buoyantly support a human body to a practical minimum.
  • this flotation apparatus of springy or yieldable material so as to reduce or eliminate the inconvenience to the patient as he is moved to and from the bed.
  • the water mattress comprises a base or support defining a hollow space open at the top and on the bottom generally shaped to conform to the general shape of a human body.
  • a bag formed from a flexible material which will tend to follow the contour of the base.
  • the bag is partially filled with water, or it may be filled with some other suitable fluid, but because of the contoured shape of the base, the volume of water required is that amount necessary to provide a sufficient liquid film, of practical size, between the upper bag sheet and the lower bag sheet to float the patient.
  • the volume and weight of water has been drastically reduced compared to the prior art water beds, and in fact may be less than the weight of the floating patient.
  • the use of the fluid filled bag allows the patient to roll out of the mattress with no loss of fluid from the device.
  • the patient floating on a level with the top of the mattress, depresses the springy and yieldable sides of the mattress. Thus he is not exposed to any hard and unyielding surface or walls on leaving or coming on to the mattress.
  • the seat comprises a base defining a hollow space open at the top and on the bottom and generally shaped to conform to the general shape of the buttocks and thighs.
  • a bag formed from a flexible material which will tend to follow the contour of the base is placed on the base. However, instead of partially filling this bag with water, this bag is partially filled with a liquid having a specific gravity greater than that of water, to reduce to a practical amount the depth to which the patient, in a sitting position, will sink in the liquid before he floats.
  • FIG. 1 is a perspective view of the water mattress illustrating the complete base, but cutting away the bag and the overlying blanket for purpose of illustration, a bed with which the mattress may be used being shown in dot-dash lines;
  • FIG. 2 is a longitudinal, sectional view of the mattress shown in FIG. 1 but ata larger scale, illustrating the bed and a patient in dot-dash lines;
  • FIG. 3 is a top view of the mattress shown in FIGS. 1 and 2 but omitting the blanket and cutting away the bag to show a portion of the base and drawn at approximately the same scale as FIG. 2;
  • FIGS. 4, 5, 6, and 7 are sectional views taken along the lines 4-4, 5-5, 6-6 and 7-7 in FIG. 3;
  • FIG. 8 is a perspective view of a seat incorporating this invention, the bag and blanket being cut away for purpose of illustration;
  • FIG. 9 is a sectional view taken along the lines 9-9 in FIGS. 8 and 10, but drawn at a larger scale than FIG.
  • FIG. 10 is a sectional view taken along the line 10- 10 in FIG. 9 and drawn at approximately the same scale as FIG. 9;
  • FIG. 11 is a perspective view of a modified seat, the bag, blanket, and the base being cut away for purpose of illustration;
  • FIGS. 12 and 13 are sectional views taken along the lines 12-12 and 13-13 in FIG. 11;
  • FIG. 14 is a sectional view of a modified mattress, generally similar to FIG. 4.
  • a mattress or cushioning structure is illustrated, referred to hereinafter for convenience of designation, as a water mattress, comprising a support or base 12 and a bladder or bag 14 placed upon the base 12.
  • the water mattress 10 is shown placed on a bed 16, the latter being shown diagrammatically in FIGS. 1 and 3 as it forms no part of this invention.
  • the water mattress 10 of this invention may be placed on the usual hospital bed, on an ordinary home bed, or another desirable place.
  • the base 12 comprises a generally rectangular block having on its upper side a hollow cavity or space 18 open at the top and defined at the bottom by a contoured, i.e., an irregular, generally concave, surface 22, generally shaped to conform to the general shape of a human body, as shown.
  • the space 18 has an irregular depth and width conforming generally to the human body.
  • the space 18 comprises (viewed from right to left in FIGS. 2 and 3) a first or head section (FIG. 4) tapering down from the upper surface of the base 12 to a second or trunk section (FIG. 5) of greatest depth, a third or thigh section (FIG. 6) tapering up to a fourth or shin section, and a fifth or foot section (FIG. 7) which tapers up to the uppersurface 20.
  • Each section is made wide enough to comfortably accommodate the patient.
  • the bag 14 comprises two, generally rectangular, sheets 26 and 28 of flexible material, preferably a thermosetting, plastic material such as a fluid-impermeable polyvinyl.
  • the peripheral, abuttingedge margins 30 (FIG. 3) of the sheets 26 and 28 are bonded to each other to define the interior cavity 32 of the bag 14 which is thus closed except for one comer 34 of the bag where it has been cut diagonally, after bonding of the margins 30, to provide an opening to permit access into and egress out of the bag for the fluid 36 which is normally inside the bag 14 when the mattress is in use for its intended flotation purpose.
  • the lower sheet 26 is preferably large enough to closely follow the contour of the irregular surface 22 and to lay upon it and the top surface 20 of the base 12.
  • the upper sheet 28 is large enough to overlie the top surface 22 but in addition is large enough to remain slack and flaccid so that no strain is placed upon it, but rather the weight of the patient is transferred to the fluid, the sheet 28 preventing contact by the patient with the fluid and helping to contain the fluid.
  • the opening at the corner 34 is closed by a suitable clamp 40 and the bag is placed on the base 12, or it may be first placed on the base and then filled.
  • the peripheral edge portions of the bag 14 lie substantially horizontally, as shown in FIGS. 2 and 5, for example, as such an arrangement tends to'improve the appearance of the mattress.
  • the lower, peripheral, marginal surface of the lower sheet is cemented to the upper surface 20 of the base 12 by a suitable cement, except in the immediate vicinity of the corner 34, so that the clamp may still be used there to close the opening at the corner 34.
  • the fluid placed within the bag 14 is water, since it is readily available, a deformable, yieldable, but weight supporting substance which can be molded about the patient to provide a large surface over which his weight is distributed. If water is used, the bag '14 may be filled when the mattress is needed and emptied when no longer needed, or the water may be changed, should it become stagnant and odorous.
  • the bag may be completely sealed along its entire periphery after the liquid has been placed within it and the corner opening and clamp omitted.
  • the space 18 is made deep enough to accept the lower two-thirds of a body when in the supine position and, in addition, to accept the bag 14 with the practical, minimum amount of water necessary to create a film, or partial annulus, under and partially around the body, as illustrated.
  • about two-thirds of the patients body is below the plane of the surface 20 and one-third above it, FIG. 2.
  • the upper level of the water will be about even with the surface 20. If the water level rises above the plane of the surface 20, it will not spill over as the bag is closed and sealed at its margins.
  • the rectangular base 12 is made about 7 feet long, 3 feet wide and 1 foot thick.
  • the deepest section of the space 18 is made about 10 inches deep, the other sections being made proportionately less deep, the length of the space 18 being about 6 feet and 6 inches and the width being tapered from a maximum width at the shoulder section to lesser widths at the foot and head sections, as generally shown in FIG. 3.
  • the water in the bag becomes distributed, generally as shown in FIGS. 2 and 4 to 7, i.e., molds about the patients under the pressure of the patients body, and will rise to the plane of the surface 20, but if it rises above this plane, no spillage will take place since the bag is closed as previously noted.
  • the upper sheet 28 is large enough to remain flaccid after the patient is placed on the bag 14.'That is, the upper sheet 28 does not become stressed substantially by the weight of the patent, the patients weight being supported by the liquid.
  • a blanket 46 and preferably two wool blankets, upon the bag 14, to thermally insulate the patient from the bag 14.
  • the base 12 is made of foam material, i.e., and expanded cellular material.
  • foam material i.e., and expanded cellular material.
  • One such material is a latex foam but a polyurethane or other types of plastic material could also be used.
  • the foam rubber preferred is of medium density, i.e., soft and springy enough for comfort should the patient bear directly upon it, but hard enough so that the sides of the base will not bulge out due to the weight of the water and of the patient, and is similar to that used in mattresses for ordinary beds. That is, the sides of the base must be strong enough to resist the pressure due to the weight of the water and the patient without substantial deformation.
  • he should strike the side walls of the base or the margins of the bag on the surface 20, he will strike a relatively soft or springy surface which should normally cause no discomfort.
  • the patient should strike bottom, i.e.-, the water becomes fully or substantially displaced from a localized portion of the bag under the patient and the patients weight is transferred to the base, for instance, as might happen if he sits upv at meal time, a relatively soft and springy support will be provided by the base 12 at this time, and the loose sheet 28 moves down freely under the patients weight which now is concentrated in a smaller surface area.
  • the lower sheet 26 could be replaced by a coating or lining of the surface 22 by a waterproofing material.
  • the peripheral edge portion of the upper sheet 28 would be secured, such as by a suitable cement, to the corresponding portion of the surface 20. All or a part of the sheet 28 which normally lies above the surface 20 could be so secured, but if only a peripheral part of the sheet 28 is cemented to the corresponding part of the surface, as generally indicated by the portion designated 30 in FIG. 3, the portion of the sheet 28 inwardly thereof, with the corresponding, and waterproofed, part of the base 12, would advantageously form a pocket to receive any water which would tend to rise above the surface 20.
  • a fluid having a specific gravity greater than one could be used in the removable bag or in the mattress without the removable bag.
  • a fluid with a specific gravity of between one and three is preferred.
  • the patient may be easily rolled onto or out of the mattress without the need for lifting him over the high side walls of some previous water tanks, and that the pliant tapering surfaces (forming the upper parts of the surface 22) help in rolling him onto and out of the mattress.
  • FIG. 8 illustrates a seat 60 comprising a shell or base 62 and a bag 64.
  • the base 62 is formed by a lowersection 63 and a back support 65.
  • the lower portion of the back support 65 is formed with a tongue cemented in a groove in the lower section 63.
  • the lower section 63 is formed with a space or concavity generally large enough to receive the patients buttocks and the upper part of his thighs.
  • the base 62 is lined with a flexible, lower sheet 71, the sheet 71 which may or may not be cemented thereto, as shown in the drawings, so as to leakproof the upper and left surfaces, respectively, of the lower section 63 and the back support 65 and defining with an upper sheet a bag-like structure 79.
  • the sheet 71 is shaped to fit and cover the part of the lower section defining the cavity 70. Also, a part of the sheet 71, rests upon a peripheral lip 74, comprising a front lip 72 and side lips 73, which with the lower part of the back support bounds the cavity 70.
  • the upper part of the sheet 71 is draped over the upper part of the back support, as shown.
  • the lip 74' has a substantial width, as shown, and the sheet 71 extends over the lip and is cemented to it, as shown.
  • a liquid suspension having a specific gravity greater than water and preferably about 2.7 to 3.3 is then placed on the part of the sheet lining the cavity 70.
  • the suspension preferred ismade by mixing 25 pounds of finely particalized lead carbonate with 12 pounds of high viscosity motor oil (Mobil Oil Compound GG) which together have a volume of about one-fifth of a cubic foot and a weight of about pounds per cubic foot or a specific gravity of about 2.9, since water has a specific weight of 62.4 pounds per cubic foot, as is known.
  • This specific gravity range gives the required buoyant-force to float the patient in the sitting position with a small volume of fluid, yet permits the maximum practical surface area of the buttocks and thighs to support the body, thereby minimizing the weight per unit area.
  • the flexible sheet 75 is then placed over the sheet 71 and the suspension, and the sheet 75 is bonded to the sheet 71 along the peripheral margins 76, Le, along all four sides of the sheets.
  • the sheet 75 is large enough to lie loosely or flaccidly upon the suspension so that when the patient sits on it there will be plenty of excess material available, as indicated by the folds 77, FIG. 9, to allow the patient and the upper sheet 75 to sink into the cavity 70 until he floats, See FIGS. 9 and 10, at which time his weight is distributed over the maximum available surface area of his buttocks and thighs, without straining the sheet 75.
  • (latex) foam rubber material of medium density and firmness is preferred for the base 62.
  • thermoplastic polyvinyl sheets are also preferred. With these materi- 7 als, the sheet 71 may be secured to the base 62 by a suitable latex cement and the sheets may be heat bonded to each other at the margins 76.
  • one or two thicknesses of blankets preferably wool blankets, will minimize the heat loss from the patient to the liquid.
  • a tube 81 may be inserted through the lower section into the interior space between the two sheets, as shown in FIG. 9, to fill or empty the space, the tube 81 being screw-capped at its lower end to prevent escape of the liquid.
  • the seat may be placed on a rigid frame 84, shown in dot-dash lines, since it is not part of this invention, if desired, or on any suitable support.
  • the front lip 72 provides a comfortable support for the shins, since the lower section is made of springy material of medium firmness. While not so shown in FIG. 10, the front lip 72 will be depressed slightly by the weight of the shins. Likewise, the side lips 73 will yield and provide a comfortable support should the patient, in getting on or off the seat, accidentally sit on them.
  • FIGS. 11 to 13 is similar to that shown by FIGS. 8 to 10, but here the liquid is contained in a removable bag 90 received in a cavity 91 formed in a one-piece base 92.
  • the base 92 has a lip 93 bounding the front and sides of the cavity 91 and a back support 94, all of which are formed integral.
  • the bag 90 made from flexible sheet material, the bag 90 containing within it a liquid 95 whose specific gravity is sufficiently high so that the patient, when placed in a seating position on the bag, will be buoyed upon sinking into the bag a short distance, preferably no more than about 6 inches.
  • FIG. 14 illustrates an embodiment of this invention in which the base 100 is molded of a stiff plastic to the general shape heretofore discussed for the base of a water mattress, except that it is hollow, as at 102 and has a foam rubber shoulder 103.
  • the base 100 is provided with integral feet to be laced on the mattress or frame of an ordinary hospital or home bed.
  • a bag 104, partially filled with water, as heretofore discussed, is placed in the cavity 106 of the base and covered by a blanket 108.
  • both the mattress and the seat have some utility without the fluids in them, in that they can be used for their respective purposes, to comfortably rest and sit on,'with the bag in place, should the fluid escape accidentally, or even without the bag being in place.
  • both the mattress and the fluid seat may be made in various sizes for adults and chil ren.
  • a therapeutic body support structure comprising:
  • a baseof resiliently yieldable cellular material having a cavity formed in the upper surface thereof, said cavity being contoured in cross section generally to the shape of at least a portion of the human body receivable in the cavity,
  • a bag overlying the upper surface of said base and providing a cover therefor, said bag comprising upper and lower sheets of fluid-impermeable material, said lower sheet having an area sufficient to cover the surface of said cavity and having the periphery thereof bonded to said upper sheet, said upper sheet having an area greater than the upper surface of said base to provide a flaccid cover for said cavity and the remaining upper surface of said base whereby the upper sheet is deformable into said cavity without substantial stretching under the weight of the human body,
  • said base resisting substantial deformation under the weight of the liquid and the weight of the human body resting on said base whereby the liquid and the upper sheet of said bag are caused to mold about and provide floating support for the portion of the human body in the cavity, said base being resiliently and yieldably deformable when contacted by the human body being placed on or removed from said structure, and said bag preventing loss of said liquid when said base is so deformed.

Landscapes

  • 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)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Invalid Beds And Related Equipment (AREA)
US488202A 1965-09-17 1965-09-17 Flotation apparatus Expired - Lifetime US3689949A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US48820265A 1965-09-17 1965-09-17

Publications (1)

Publication Number Publication Date
US3689949A true US3689949A (en) 1972-09-12

Family

ID=23938744

Family Applications (1)

Application Number Title Priority Date Filing Date
US488202A Expired - Lifetime US3689949A (en) 1965-09-17 1965-09-17 Flotation apparatus

Country Status (6)

Country Link
US (1) US3689949A (de)
BE (1) BE686983A (de)
DE (1) DE1554178A1 (de)
FR (1) FR1499432A (de)
GB (1) GB1140767A (de)
NL (1) NL6613109A (de)

Cited By (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3803647A (en) * 1971-08-20 1974-04-16 Attending Staff Ass Rancho Los Flotation bed
US3842455A (en) * 1971-12-29 1974-10-22 J Whitney Fluid containing mattress
US4127908A (en) * 1975-04-30 1978-12-05 Keep View Ltd. Waterbeds
JPS5464003U (de) * 1977-10-14 1979-05-07
US4187565A (en) * 1977-12-05 1980-02-12 Zeltzer Lee B Waterbed construction
US4189181A (en) * 1978-04-24 1980-02-19 David Noble Water-filled chair
WO1983003195A1 (en) * 1982-03-16 1983-09-29 Jay, Eric, C. Improved seat cushion
US4517692A (en) * 1983-03-03 1985-05-21 Ardo International Marketing Anti-decubitus waterfloatation system
US4583254A (en) * 1984-03-19 1986-04-22 Johenning John B Low tension waterbed mattress with aesthetic appearance
USRE32420E (en) * 1977-01-14 1987-05-19 Morning Surf Corporation Waterbed mattress construction
JPS633811A (ja) * 1986-04-04 1988-01-08 ウインフリ−ド　ペ−タ−　バルブラ ウオ−タマツトレスバツグとその製造方法及びウオ−タマツトレスバツグを備えたウオ−タマツトレス
US4838613A (en) * 1987-03-19 1989-06-13 Smith Peter A Water chair
US4842330A (en) * 1987-06-30 1989-06-27 Jay Medical, Ltd. Protective seat cushion
US4858262A (en) * 1986-10-10 1989-08-22 Anderson Stanley K Confined liquid flotation mattress
US4905267A (en) * 1988-04-29 1990-02-27 Loma Linda University Medical Center Method of assembly and whole body, patient positioning and repositioning support for use in radiation beam therapy systems
US4930171A (en) * 1989-05-03 1990-06-05 International Healthcare Products, Inc. Contour retaining support cushion
US4951336A (en) * 1989-04-03 1990-08-28 Pin Dot Products Contoured support cushions
US4974272A (en) * 1989-11-27 1990-12-04 Liu Su H Warm and cool water bed
US5044030A (en) * 1990-06-06 1991-09-03 Fabrico Manufacturing Corporation Multiple layer fluid-containing cushion
US5175898A (en) * 1984-03-19 1993-01-05 Advanced Sleep Products Sculptured, stretchable waterbed mattress with aesthetic appearance
DE4201044A1 (de) * 1991-11-15 1993-07-22 Helmut Zaulich Auftriebs-wasserbett
US5511260A (en) * 1991-09-06 1996-04-30 Rik Medical Anti-decubitus mattress pad
US5513400A (en) * 1993-10-15 1996-05-07 Turner; David R. Pressure relief mattress
US5606785A (en) * 1994-05-19 1997-03-04 Position-Aire, Inc. Air bladder positioner for cadavers
USD386036S (en) * 1996-04-04 1997-11-11 Medical Support Systems Limited Cushion
EP0820750A2 (de) * 1996-07-26 1998-01-28 Manuel Munoz Saiz Schwimmendes Matratzensystem für Betten, Sitze und ähnliche Artikel
US5850646A (en) * 1993-10-15 1998-12-22 Turner; David R. Pressure relief mattress
US5918334A (en) * 1997-06-03 1999-07-06 Medical Support Systems Limited Cushion with gel sac and gel overlay
US20030053863A1 (en) * 2000-02-02 2003-03-20 Bodkin Lawrence E. Buoyancy devices using conformal cavities
WO2004103123A1 (de) * 2003-05-23 2004-12-02 Kos Wasserveredelung Matratze oder kissen mit innenligendem wasserelement und verfahren zur wirbelsäulen-extension
US20050132490A1 (en) * 2003-12-17 2005-06-23 Davis David T. Pneumatic lift
US20050150054A1 (en) * 2001-06-14 2005-07-14 Kazuhiro Sato Fluid bedding
US20070000048A1 (en) * 2004-12-16 2007-01-04 Davis David T Pneumatic lift and method for transferring an invalid patient
US20080042076A1 (en) * 2003-08-12 2008-02-21 Loma Linda University Medical Center Modular patient support system
US20090077752A1 (en) * 2005-11-22 2009-03-26 Stephan Wolfgang Bar Water Bed
US7789560B2 (en) 2001-10-30 2010-09-07 Loma Linda University Medical Center Method and device for delivering radiotherapy
US7984715B2 (en) 2004-06-25 2011-07-26 Loma Linda University Medical Center Method and device for registration and immobilization
US8210899B2 (en) 2006-11-21 2012-07-03 Loma Linda University Medical Center Device and method for immobilizing patients for breast radiation therapy
ITUA20163383A1 (it) * 2016-05-12 2017-11-12 Starpool S R L Attrezzatura tecnologica per l’esecuzione di sedute di allenamento mentale
ITUA20163382A1 (it) * 2016-05-12 2017-11-12 Starpool S R L Metodo per l’allenamento mentale di una persona
US20180361897A1 (en) * 2017-06-20 2018-12-20 Ford Global Technologies, Llc Vehicle seat padding assembly with molded-in bladders
CN112998972A (zh) * 2021-05-07 2021-06-22 四川大学华西医院 基于远程医疗系统智能化医用担架车

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU4788379A (en) * 1978-11-21 1980-05-29 David Michael Britz Posture chair
DE3246436A1 (de) * 1982-12-15 1984-06-20 Alfred 9014 St.Gallen Rey Liegeflaeche mit solarium-bestrahlung
DE8310561U1 (de) * 1983-04-12 1983-12-29 Kief, Horst, Dr.Med., 6700 Ludwigshafen Gerät zur Ganzkörperbehandlung mittels elektrischer Felder
GB2154445A (en) * 1984-02-23 1985-09-11 Pressure Sealed Plastics Limit Water beds
DE8509292U1 (de) * 1985-03-28 1993-12-23 Hettmer, Paul, 23562 Lübeck Spezialpflegematratze
US4660238A (en) * 1985-05-20 1987-04-28 Jay Medical, Ltd. Hemorrhoid seat cushion
NO855218L (no) * 1985-12-20 1987-06-22 Jan R Nystad Vannseng, fortrinnsvis til privat bruk som terapivannseng.
AU7095787A (en) * 1986-04-04 1987-10-08 Winfried Peter Barbulla Water bed and method for making same
ZA891755B (en) * 1988-06-30 1989-11-29 Johanna Groenewald Petronella Mattress
NO890079L (no) * 1989-01-09 1990-07-10 Winfried Peter Barbulla Anordning ved vannpose for vannmadrass og framgangsmaate for framstilling av denne.
GB8904911D0 (en) * 1989-03-03 1989-04-12 Soper Richard G Waterbed
US5107557A (en) * 1991-02-14 1992-04-28 Dennis Boyd Waterbed mattress with air cushion
NL9400476A (nl) * 1994-03-25 1995-11-01 Joannes Cornelis Wilhelmus Doo Stoel.
FR2750040B1 (fr) * 1996-06-04 1998-12-24 Marc Montenvert Procede d'installation d'un handicape sur un matelas de contention et matelas a empreinte le mettant en oeuvre
CN112587339B (zh) * 2020-12-11 2022-04-15 河南省中医院（河南中医药大学第二附属医院） 脑部手术后脑神经养护装置及控制方法

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2534471A (en) * 1946-11-04 1950-12-19 Ludwig M Norheim Revolving bed
US2575764A (en) * 1947-04-10 1951-11-20 Hans G Morner Air-filled upholstery and method of manufacture
US2691179A (en) * 1951-05-25 1954-10-12 Englander Co Inc Pneumatic structure for mattresses, seat and back cushions, and the like
US2704663A (en) * 1948-04-26 1955-03-22 Leveling device
US2748399A (en) * 1950-05-25 1956-06-05 Dayton Rubber Company Light-weight foam rubber cushioning structure
US2970638A (en) * 1957-02-05 1961-02-07 Halter Ludwig Seat and backrest construction
US3020260A (en) * 1960-08-18 1962-02-06 Dow Corning Organosiloxane potting compound
US3043049A (en) * 1960-06-21 1962-07-10 Gadget Of The Month Club Inc Stabilizer
US3045390A (en) * 1959-04-13 1962-07-24 Bassick Co Leveling device
GB932779A (en) * 1961-05-23 1963-07-31 Frankenstein & Sons Manchester Improvements in or relating to liquid-filled mattresses
US3108293A (en) * 1961-10-04 1963-10-29 Benny I King Relaxing couch
US3308491A (en) * 1965-12-22 1967-03-14 Stryker Corp Cushion structure

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2534471A (en) * 1946-11-04 1950-12-19 Ludwig M Norheim Revolving bed
US2575764A (en) * 1947-04-10 1951-11-20 Hans G Morner Air-filled upholstery and method of manufacture
US2704663A (en) * 1948-04-26 1955-03-22 Leveling device
US2748399A (en) * 1950-05-25 1956-06-05 Dayton Rubber Company Light-weight foam rubber cushioning structure
US2691179A (en) * 1951-05-25 1954-10-12 Englander Co Inc Pneumatic structure for mattresses, seat and back cushions, and the like
US2970638A (en) * 1957-02-05 1961-02-07 Halter Ludwig Seat and backrest construction
US3045390A (en) * 1959-04-13 1962-07-24 Bassick Co Leveling device
US3043049A (en) * 1960-06-21 1962-07-10 Gadget Of The Month Club Inc Stabilizer
US3020260A (en) * 1960-08-18 1962-02-06 Dow Corning Organosiloxane potting compound
GB932779A (en) * 1961-05-23 1963-07-31 Frankenstein & Sons Manchester Improvements in or relating to liquid-filled mattresses
US3108293A (en) * 1961-10-04 1963-10-29 Benny I King Relaxing couch
US3308491A (en) * 1965-12-22 1967-03-14 Stryker Corp Cushion structure

Cited By (67)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3803647A (en) * 1971-08-20 1974-04-16 Attending Staff Ass Rancho Los Flotation bed
US3842455A (en) * 1971-12-29 1974-10-22 J Whitney Fluid containing mattress
US4127908A (en) * 1975-04-30 1978-12-05 Keep View Ltd. Waterbeds
USRE32420E (en) * 1977-01-14 1987-05-19 Morning Surf Corporation Waterbed mattress construction
JPS5464003U (de) * 1977-10-14 1979-05-07
US4187565A (en) * 1977-12-05 1980-02-12 Zeltzer Lee B Waterbed construction
US4189181A (en) * 1978-04-24 1980-02-19 David Noble Water-filled chair
US4726624A (en) * 1982-03-16 1988-02-23 Jay Medical, Ltd. Seat cushion
WO1983003195A1 (en) * 1982-03-16 1983-09-29 Jay, Eric, C. Improved seat cushion
JPS59500454A (ja) * 1982-03-16 1984-03-22 ジエイ　エリツク　シ− 改良型シ−トクツシヨン
JPH0326613B2 (de) * 1982-03-16 1991-04-11 Eritsuku Shii Jei
US4588229A (en) * 1982-03-16 1986-05-13 Jay Medical, Ltd. Seat cushion
US4517692A (en) * 1983-03-03 1985-05-21 Ardo International Marketing Anti-decubitus waterfloatation system
US4583254A (en) * 1984-03-19 1986-04-22 Johenning John B Low tension waterbed mattress with aesthetic appearance
US5175898A (en) * 1984-03-19 1993-01-05 Advanced Sleep Products Sculptured, stretchable waterbed mattress with aesthetic appearance
JPS633811A (ja) * 1986-04-04 1988-01-08 ウインフリ−ド　ペ−タ−　バルブラ ウオ−タマツトレスバツグとその製造方法及びウオ−タマツトレスバツグを備えたウオ−タマツトレス
US4858262A (en) * 1986-10-10 1989-08-22 Anderson Stanley K Confined liquid flotation mattress
US4838613A (en) * 1987-03-19 1989-06-13 Smith Peter A Water chair
US4842330A (en) * 1987-06-30 1989-06-27 Jay Medical, Ltd. Protective seat cushion
US4905267A (en) * 1988-04-29 1990-02-27 Loma Linda University Medical Center Method of assembly and whole body, patient positioning and repositioning support for use in radiation beam therapy systems
US4951336A (en) * 1989-04-03 1990-08-28 Pin Dot Products Contoured support cushions
US4960304A (en) * 1989-05-03 1990-10-02 Internatinal Healthcare Products, Inc. Contour retaining back support cushion
US4930171A (en) * 1989-05-03 1990-06-05 International Healthcare Products, Inc. Contour retaining support cushion
US4974272A (en) * 1989-11-27 1990-12-04 Liu Su H Warm and cool water bed
US5044030A (en) * 1990-06-06 1991-09-03 Fabrico Manufacturing Corporation Multiple layer fluid-containing cushion
US5511260A (en) * 1991-09-06 1996-04-30 Rik Medical Anti-decubitus mattress pad
DE4201044A1 (de) * 1991-11-15 1993-07-22 Helmut Zaulich Auftriebs-wasserbett
US5513400A (en) * 1993-10-15 1996-05-07 Turner; David R. Pressure relief mattress
US5850646A (en) * 1993-10-15 1998-12-22 Turner; David R. Pressure relief mattress
US5606785A (en) * 1994-05-19 1997-03-04 Position-Aire, Inc. Air bladder positioner for cadavers
USD386036S (en) * 1996-04-04 1997-11-11 Medical Support Systems Limited Cushion
EP0820750A3 (de) * 1996-07-26 1998-03-18 Manuel Munoz Saiz Schwimmendes Matratzensystem für Betten, Sitze und ähnliche Artikel
EP0820750A2 (de) * 1996-07-26 1998-01-28 Manuel Munoz Saiz Schwimmendes Matratzensystem für Betten, Sitze und ähnliche Artikel
US5918334A (en) * 1997-06-03 1999-07-06 Medical Support Systems Limited Cushion with gel sac and gel overlay
US20030053863A1 (en) * 2000-02-02 2003-03-20 Bodkin Lawrence E. Buoyancy devices using conformal cavities
US20050150054A1 (en) * 2001-06-14 2005-07-14 Kazuhiro Sato Fluid bedding
US7043787B2 (en) * 2001-06-14 2006-05-16 Shizuko Kimura, legal representative Fluid bedding
US7789560B2 (en) 2001-10-30 2010-09-07 Loma Linda University Medical Center Method and device for delivering radiotherapy
US8376613B2 (en) 2001-10-30 2013-02-19 Loma Linda University Medical Center Method and device for delivering radiotherapy
US8083408B2 (en) 2001-10-30 2011-12-27 Loma Linda University Medical Center Method and device for delivering radiotherapy
WO2004103123A1 (de) * 2003-05-23 2004-12-02 Kos Wasserveredelung Matratze oder kissen mit innenligendem wasserelement und verfahren zur wirbelsäulen-extension
DE10323838B4 (de) * 2003-05-23 2017-09-14 Aquadormio Gmbh Matratze oder Kissen mit innenliegendem Wasserelement
US20110218679A1 (en) * 2003-08-12 2011-09-08 Loma Linda University Medical Center Path planning and collision avoidance for movement of instruments in a radiation therapy environment
US8418288B2 (en) 2003-08-12 2013-04-16 Loma Linda University Medical Center Modular patient support system
US7746978B2 (en) 2003-08-12 2010-06-29 Loma Linda University Medical Center Path planning and collision avoidance for movement of instruments in a radiation therapy environment
US8981324B2 (en) 2003-08-12 2015-03-17 Loma Linda University Medical Center Patient alignment system with external measurement and object coordination for radiation therapy system
US7949096B2 (en) 2003-08-12 2011-05-24 Loma Linda University Medical Center Path planning and collision avoidance for movement of instruments in a radiation therapy environment
US8569720B2 (en) 2003-08-12 2013-10-29 Loma Linda University Medical Center Patient alignment system with external measurement and object coordination for radiation therapy system
US7696499B2 (en) 2003-08-12 2010-04-13 Loma Linda University Medical Center Modular patient support system
US20080042076A1 (en) * 2003-08-12 2008-02-21 Loma Linda University Medical Center Modular patient support system
US8093569B2 (en) 2003-08-12 2012-01-10 Loma Linda University Medical Centre Modular patient support system
US8184773B2 (en) 2003-08-12 2012-05-22 Loma Linda University Medical Center Path planning and collision avoidance for movement of instruments in a radiation therapy environment
US8269195B2 (en) 2003-08-12 2012-09-18 Loma Linda University Medical Center Patient alignment system with external measurement and object coordination for radiation therapy system
US20050132490A1 (en) * 2003-12-17 2005-06-23 Davis David T. Pneumatic lift
US7984715B2 (en) 2004-06-25 2011-07-26 Loma Linda University Medical Center Method and device for registration and immobilization
US8479743B2 (en) 2004-06-25 2013-07-09 Loma Linda University Medical Center Method and device for registration and immobilization
US20070000048A1 (en) * 2004-12-16 2007-01-04 Davis David T Pneumatic lift and method for transferring an invalid patient
US7647661B2 (en) * 2005-11-22 2010-01-19 Baer Stephan Wolfgang Waterbed
US20090077752A1 (en) * 2005-11-22 2009-03-26 Stephan Wolfgang Bar Water Bed
US8523630B2 (en) 2006-11-21 2013-09-03 Loma Linda University Medical Center Device and method for immobilizing patients for breast radiation therapy
US8210899B2 (en) 2006-11-21 2012-07-03 Loma Linda University Medical Center Device and method for immobilizing patients for breast radiation therapy
US9084886B2 (en) 2006-11-21 2015-07-21 Loma Linda University Medical Center Device and method for immobilizing patients for breast radiation therapy
ITUA20163383A1 (it) * 2016-05-12 2017-11-12 Starpool S R L Attrezzatura tecnologica per l’esecuzione di sedute di allenamento mentale
ITUA20163382A1 (it) * 2016-05-12 2017-11-12 Starpool S R L Metodo per l’allenamento mentale di una persona
US20180361897A1 (en) * 2017-06-20 2018-12-20 Ford Global Technologies, Llc Vehicle seat padding assembly with molded-in bladders
CN112998972A (zh) * 2021-05-07 2021-06-22 四川大学华西医院 基于远程医疗系统智能化医用担架车
CN112998972B (zh) * 2021-05-07 2023-04-25 四川大学华西医院 基于远程医疗系统智能化医用担架车

Also Published As

Publication number Publication date
NL6613109A (de) 1967-03-20
BE686983A (de) 1967-03-16
FR1499432A (fr) 1967-10-27
DE1554178A1 (de) 1970-02-12
GB1140767A (en) 1969-01-22

Similar Documents

Publication Publication Date Title
US3689949A (en) Flotation apparatus
US3574873A (en) Fluid-type support structure for simulating flotation-type support
US4753480A (en) Pad assembly for wheelchairs
US3702484A (en) Light-weight, minimum-volume water pad
US4960304A (en) Contour retaining back support cushion
US5836654A (en) Wheelchair seat assembly with contoured seat pan and cushion and method
US3585356A (en) Liquid support for human bodies
US4942634A (en) Damped fluid displacement support system and method for making the same
EP1905404B1 (de) Rollstuhlsitzpolsterung
US4682818A (en) Pressure distribution pad assembly for wheelchairs
US4689844A (en) Convertible body supporting pads
US4842330A (en) Protective seat cushion
US7540050B1 (en) Pregnancy support pillow
US4411033A (en) Waveless waterbed
US5513400A (en) Pressure relief mattress
US5564141A (en) Hydraulic mattress and platform mattress support
US4189798A (en) Foam mattress with floatation torso support
US4951336A (en) Contoured support cushions
US3815165A (en) Light-weight, minimum-volume water pad
US4491993A (en) Mechanism for maintaining the shape of a floatation sleep system
EP0025031B1 (de) Sitz- oder bettpolster
US3965508A (en) Seating cushion
US4501036A (en) Floatation sleep system
CA2031574C (en) Floatation cover for mattresses
US4700419A (en) Floatation sleep system including a rectilinear perimeter air chamber