EP1545345A1 - Matelas - Google Patents

Matelas

Info

Publication number
EP1545345A1
EP1545345A1 EP03785137A EP03785137A EP1545345A1 EP 1545345 A1 EP1545345 A1 EP 1545345A1 EP 03785137 A EP03785137 A EP 03785137A EP 03785137 A EP03785137 A EP 03785137A EP 1545345 A1 EP1545345 A1 EP 1545345A1
Authority
EP
European Patent Office
Prior art keywords
cushion
mattress
base
cushions
accessory
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP03785137A
Other languages
German (de)
English (en)
Inventor
Reza Hakamiun
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.)
Hill Rom Services Inc
Original Assignee
Hill Rom Services Inc
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 Hill Rom Services Inc filed Critical Hill Rom Services Inc
Publication of EP1545345A1 publication Critical patent/EP1545345A1/fr
Withdrawn legal-status Critical Current

Links

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
    • A61G7/0507—Side-rails
    • 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
    • A47C27/142—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays with projections, depressions or cavities
    • A47C27/144—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays with projections, depressions or cavities inside the mattress or cushion
    • 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
    • A47C27/148—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays of different resilience
    • 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
    • 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
    • A61G7/0507—Side-rails
    • A61G7/052—Side-rails characterised by safety means, e.g. to avoid injuries to patient or caregiver
    • 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
    • A61G7/0525—Side-bolsters
    • 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
    • A61G7/053—Aids for getting into, or out of, bed, e.g. steps, chairs, cane-like supports
    • 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
    • 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
    • A61G7/065—Rests specially adapted therefor
    • 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
    • A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
    • A61G7/1013—Lifting of patients by
    • A61G7/1021—Inflatable cushions

Definitions

  • the present invention relates to patient supports, such as hospital beds. More particularly, the present invention relates to a mattress for retaining patients in hospital beds.
  • a mattress in an illustrative embodiment of the present invention, includes a base cushion, a first side cushion positioned horizontally adjacent to the base cushion and having a height greater than the base cushion, and an accessory cushion positioned vertically above the base cushion and horizontally adjacent to the first side cushion.
  • the accessory cushion is selectively inflatable.
  • a method of assisting egress and retention from a patient support includes the steps of providing a base cushion, providing a plurality of side cushions having an upper surface positioned vertically above and horizontally adjacent to the base cushion, and providing an accessory cushion above the base cushion and intermediate the side cushions.
  • the illustrated method further includes the steps of inflating the accessory cushion to assist patient egress from the patient support, and deflating the accessory cushion to assist in patient retention on the patient support.
  • a mattress in another illustrative embodiment of the present invention, includes a base cushion having opposing first and second sides, a first side cushion positioned laterally adjacent the first side of the base cushion and extending vertically higher than the base cushion, and a second side cushion positioned laterally adjacent the second side of the base cushion and extending vertically higher than the base cushion.
  • the first and second side cushions include bending relief members.
  • the first and second side cushions are formed of substantially stiff foam and the bending relief members each comprise at least one slit.
  • the mattress is configured to be located on an articulating deck
  • the bending relief members comprise a plurality of slits formed in sets within the first and second side cushions and positioned such that each set is located above a pivot point on the articulating deck.
  • first and second side cushions have a stiffness greater than the base cushion.
  • FIG. 1 is perspective view of a patient support including an illustrative embodiment mattress of the present invention
  • Fig. 2 is a cross-sectional view of the mattress of Fig. 1 taken along line 2-2;
  • Fig. 3 is a cross-sectional view similar to Fig. 2 showing an inflated accessory cushion or bladder;
  • Fig. 4 is a diagrammatical view of the connections of the bladder of Fig. 1 ;
  • Fig. 5 is a cross-sectional view similar to Fig. 3 showing a further illustrative embodiment mattress of the present invention with an inflated accessory cushion or bladder;
  • Fig. 6 is a perspective view of another illustrative embodiment mattress of the present invention .
  • Fig. 7 is a cross-sectional view taken along line 7-7 of Fig. 6;
  • Fig. 8 is a cross-sectional view similar to Fig. 7 showing an inflated accessory cushion or bladder;
  • Fig. 9 is a perspective view of a further illustrative embodiment mattress of the present invention.
  • Fig. 10 is a side elevational view of a patient support including the mattress of Fig. 9.
  • FIG. 1 A patient support 10 according to an illustrative embodiment of the present invention is shown in Fig. 1, and is typically used for supporting a patient before, after, or during medical treatment or for resting.
  • Patient support 10 includes a frame 12, a deck 14 supported on frame 12, a mattress 16 supported by deck 14, a headboard 18 coupled to frame 12, and a footboard 20 coupled to frame 12.
  • conventional siderails 21 may be attached to frame 12 or deck 14.
  • Deck 14 is illustratively of conventional design and includes a head section 14a configured for pivoting movement relative to a seat section 14b, a thigh section 14c configured for pivoting movement relative to seat section 14b, and a foot section 14d configured for pivoting movement relative to thigh section 14c.
  • pivot points 15 a, 15b, and 15c couple the respective deck sections 14a, 14b, 14c, and 14d for relative pivoting movement.
  • an illustrative embodiment mattress 16 includes a base cushion 22, an accessory cushion 24 positioned above base cushion 22, and edge cushions 26 located along edges of base cushion 22. More particularly, edge cushions 26 include opposing side cushions which are designated as 26a, 26b and are positioned adjacent opposing first and second sides of base cushion 22. Edge cushions 26 may also include a head end cushion and a foot end cushion (not shown) which have structures substantially similar to side cushions 26a, 26b.
  • Base cushion 22 has a height, a length, and a width, and is illustratively made of a polyurethane foam. It is also envisioned that base cushion 22 could be an air cushion, a water cushion, or any other type of cushion or support known in the art.
  • Edge cushions 26 are also illustratively made of a polyurethane foam but may likewise be any cushion type or support known in the art. More specifically, edge cushions 26 may be air bladders that adjust the width of the mattress 16 similar to mattresses disclosed in U.S. Patent No. 6,295,675, the disclosure of which is expressly incorporated herein by reference.
  • the indention force deflection (IFD), or stiffness, of the base cushion 22 is less than the IFD of the edge cushions 26.
  • the lower IFD of the base cushion 22 allows compression thereof upon the weight of the patient, while the higher IFD of the edge cushions 26 tends to resist displacement thereof.
  • Each edge cushion 26 has a bottom 28, an inner side 30 coupled to bottom 28, an outer side 32 longer than inner side 30 and also coupled to bottom 28, and a top or upper surface 34 extending between inner side 30 and outer side 32.
  • Inner sides 30 of edge cushions 26 abut base cushion 22 and have a height slightly greater than a height of base cushion 22.
  • Upper surface 34 angles upwardly as it extends in a direction from inner side 30 toward higher outer side 32.
  • base cushion 22 has a height, or thickness, of approximately seven inches while outer sides 32 of edge cushions 26 have a height, or thickness, of approximately eight inches.
  • Edge cushions 26 assist in retaining a patient above mattress 16.
  • a patient purposefully or inadvertently rolling near a side of mattress 16 encounters edge cushions 26. Movement by the patient so as to encounter edge cushions 26 causes the patient to either increase his height, thereby increasing the potential energy of the patient and absorbing the kinetic energy of the patient movement, or compress the edge cushion 26 which also absorbs energy of the patient. The absorption of the patient's kinetic energy makes it less likely that the patient will continue to move in the undesired direction.
  • edge cushion 26 also stores a portion of the absorbed energy and can then be used to urge the patient in a lateral direction back towards the center of mattress 16, either by allowing the patient to lower or by allowing the edge cushion 26 to assume its equilibrium position, both of which are allowed by the patient moving toward the center of mattress 16.
  • Higher outer sides 32 also serve to narrow any gaps that may be present between mattress 16 and siderails 21 attached to frame 12 or deck 14.
  • Mattress 16 of the present invention may be used with any number of types of siderails to reduce or eliminate gaps therebetween as discussed in U.S. Patent Application Serial No. 10/225,780, the disclosure of which is expressly incorporated herein by reference.
  • Accessory cushion 24 illustratively comprises a fluid fillable bladder coupled to base cushion 22.
  • a controller 25 controls operation of a blower 27 that is fluidly coupled to the accessory cushion 24 as shown in Fig. 4.
  • the blower 27 may be of conventional design and supplies a fluid, illustratively air, to the accessory cushion 24.
  • Accessory cushion 24 may either be one large cushion or bladder, or may be segmented into a plurality of smaller cushions or bladders.
  • Accessory cushion 24 has a first egress inhibiting position, or first mode of operation, as shown in Fig. 2 and a second egress assisting position, or second mode of operation, as shown in Fig. 3.
  • First position of accessory cushion 24 is a deflated position such that a patient attempting egress from mattress 16 will encounter upper surfaces 34 of edge cushions 26 as previously described.
  • Second position of accessory cushion 24 is an inflated position. The inflated position raises a top surface 36 of accessory cushion 24 to a height substantially even with outer side 32 of edge cushions 26 as shown in Fig. 3, thus creating a substantially planar top surface extending between the opposing outer sides 32. Furthermore, in the second inflated position, sides 37 of accessory cushion 24 abut upper surfaces 34 of edge cushions 26.
  • a patient attempting egress with accessory cushion 24 in second inflated position generally does not encounter edge cushions 26 and is not urged back toward the center of mattress 16, except to the extent that accessory cushion 24 is somewhat pliable and bottoms out near outer side 32 where accessory cushion 24 is not as thick as near the center of mattress 16.
  • Accessory cushion 24 is selectively inflated and deflated, commonly at the urging of the patient or caregiver through use of the controller 25 and blower 27.
  • Base cushion 22, accessory cushion 24 and edge cushions 26 may all be received within a conventional outer cover or ticking (not shown).
  • the ticking illustratively comprises a stretchable, breathable thermoplastic which is impervious to bacteria.
  • Second embodiment accessory cushion 38 having a top surface 40 is shown in Fig. 5, with the cushion 38 in a second inflated position.
  • Second embodiment accessory cushion 38 has a first deflated position similar to the first position of accessory cushion 24 as illustrated in Fig. 2.
  • top surface 40 of accessory cushion 38 does not raise to the height of outer side 32 of edge cushions 26. Rather, accessory cushion 38 inflates such that the top surface 40 has a height less than outer side 32, thereby decreasing the retaining properties of edge cushions 26 but not totally eliminating the effect of edge cushions 26.
  • top surface 40 is substantially arcuate in shape and configured to define a crest 42 near the longitudinal center axis of mattress 16.
  • Substantially arcuate top surface 40 extends upwardly from edge cushions 26 to the crest 42 proximate the center of the mattress 16. Crest 42 slightly urges the patient towards edge cushions 26 thereby assisting in egress from bed 10.
  • Accessory cushion 38 is selectively inflated and deflated, commonly at the urging of the patient or caregiver through use of the controller 25 and blower 27.
  • Accessory cushion 44 illustratively includes a bladder or plurality of bladders coupled to base cushion 22 and edge cushions 26. Accessory cushion 44 has a top surface 46 and a bottom surface 48. Bottom surface 48 is coupled to base cushion 22 and edge cushions 26. Alternatively, top walls or upper surfaces 50, 34 of base cushion 22 and edge cushions 26 are fluid impermeable and form bottom surface 48 of accessory cushion 44 as part of base cushion 22 and edge cushions 26. Accessory cushion 44 has a first deflated position shown in Fig. 7 that discourages egress from mattress 160 similarly to accessory cushions 24, 38 as detailed above.
  • Accessory cushion 44 also has a second inflated position that places top surface 46 at a height substantially equal to outer sides 32 of edge cushions 26 as shown in Fig. 8 to facilitate patient egress. Accessory cushion 44 may also be formed to have a second inflated position such that top surface 40 defines a crest similar to the crest 42 of the second illustrative embodiment accessory cushion 38 as illustrated in Fig. 5.
  • base cushion 22 and edge cushions 26 are located within a bladder of an accessory cushion.
  • accessory cushion In a first deflated position, accessory cushion would conform to the walls of base cushion 22 and edge cushions 26. In a second inflated position, accessory cushion would expand away from at least top walls 50 and 34 of base cushion 22 and edge cushions 26.
  • Bladder of accessory cushion may be separate or integral with the outer sides 32 of edge cushions 26 and bottoms of base cushions 22 and edge cushions 26.
  • Figs. 9 and 10 show another embodiment of the mattress 60 of the present invention.
  • Mattress 60 includes a base cushion 62 and edge cushions 64 that are located along sides of the base cushion 62. More particularly, the edge cushions 64 include side cushions which are designated as 64a, 64b and are positioned adjacent opposing first and second sides of the base cushion 62.
  • Base cushion 62 is illustratively constructed of polyurethane foam and is similar to base cushion 22 as detailed above in connection with Figs. 1-3.
  • Edge cushions 64 are illustratively polyurethane foam type cushions and are generally similar to the edge cushions 26 detailed above in connection with Figs. 1-3.
  • the cushions 62 and 64 are illustratively formed of polyurethane foam, they may likewise be made of any type cushion or other support known in the art.
  • the indention force deflection (IFD), or stiffness, of the base cushion 62 is illustratively less than the LFD of the edge cushions 64.
  • the lower IFD of the base cushion 62 allows compression thereof upon the weight of the patient, while the higher IFD of the edge cushions 64 tends to resist displacement thereof and thereby assist in restraining a patient on the mattress 60.
  • the edge cushions 64 are formed of a substantially hard foam tending to resist compression.
  • Each edge cushion 64 has a cross section similar to edge cushions 26. However, edge cushion 64 differs from edge cushions 26 by the addition of bending relief members, illustratively in the form of lateral apertures or slits 66 extending in a substantially vertical direction downwardly from upper surface 34.
  • Lateral slits 66 are illustratively provided in three sets 68, 70, 72 of four slits 66 each.
  • Each set 68, 70, 72 is located in edge cushion 64 so as to vertically align with one of the pivot points 15a, 15b, 15c of the articulating deck 14.
  • the slits 66 will either widen or contract depending on the direction of articulation.
  • the slits 66 thereby give flexibility to the otherwise substantially stiff foam and facilitate bending or articulation of the mattress 60 without undesirable bunching or creasing of the edge cushions 64.
  • lateral slits 66 are illustrated in Figs. 9 and 10, other bending relief members may be substituted therefore.
  • apertures, slots, corrugations, accordion paths or serpentine paths may be substituted for the vertical slits 66 of Figs. 9 and 10.

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)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Invalid Beds And Related Equipment (AREA)

Abstract

Cette invention se rapporte à un matelas (16) comprenant des coussins latéraux (26a, 26b) conçus pour retenir un patient couché sur ledit matelas.
EP03785137A 2002-08-08 2003-08-08 Matelas Withdrawn EP1545345A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US40212302P 2002-08-08 2002-08-08
US402123P 2002-08-08
PCT/US2003/025028 WO2004014193A1 (fr) 2002-08-08 2003-08-08 Matelas

Publications (1)

Publication Number Publication Date
EP1545345A1 true EP1545345A1 (fr) 2005-06-29

Family

ID=31715792

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03785137A Withdrawn EP1545345A1 (fr) 2002-08-08 2003-08-08 Matelas

Country Status (4)

Country Link
US (1) US20050028289A1 (fr)
EP (1) EP1545345A1 (fr)
AU (1) AU2003259732A1 (fr)
WO (1) WO2004014193A1 (fr)

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US11052005B2 (en) 2017-09-19 2021-07-06 Stryker Corporation Patient support apparatus with handles for patient ambulation
US11116680B2 (en) 2017-09-19 2021-09-14 Stryker Corporation Patient support apparatus for controlling patient ingress and egress
US11160705B2 (en) 2017-10-20 2021-11-02 Stryker Corporation Adjustable patient support apparatus for assisted egress and ingress

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