WO2010025722A2 - Dispositifs d'aide à la levée gonflables et procédés pour gonfler et dégonfler ces dispositifs d'aide à la levée - Google Patents

Dispositifs d'aide à la levée gonflables et procédés pour gonfler et dégonfler ces dispositifs d'aide à la levée Download PDF

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Publication number
WO2010025722A2
WO2010025722A2 PCT/DE2009/050049 DE2009050049W WO2010025722A2 WO 2010025722 A2 WO2010025722 A2 WO 2010025722A2 DE 2009050049 W DE2009050049 W DE 2009050049W WO 2010025722 A2 WO2010025722 A2 WO 2010025722A2
Authority
WO
WIPO (PCT)
Prior art keywords
cushion
stand
pressure
pad
valve
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.)
Ceased
Application number
PCT/DE2009/050049
Other languages
German (de)
English (en)
Other versions
WO2010025722A3 (fr
Inventor
Martin Baecke
Philipp Arkenau
Holger SCHWÄRSKY
Friedrich Kunick
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.)
Seleon GmbH
Original Assignee
Seleon GmbH
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 Seleon GmbH filed Critical Seleon GmbH
Priority to DE112009002685T priority Critical patent/DE112009002685A5/de
Publication of WO2010025722A2 publication Critical patent/WO2010025722A2/fr
Publication of WO2010025722A3 publication Critical patent/WO2010025722A3/fr
Anticipated expiration legal-status Critical
Ceased 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
    • A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
    • A61G7/1013—Lifting of patients by
    • A61G7/1021—Inflatable cushions
    • 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
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/10—Parts, details or accessories
    • A61G5/14—Standing-up or sitting-down aids

Definitions

  • the field of the invention are inflatable stand-up aids as well as methods for inflating and deflating the stand-up aids.
  • the technical field of this invention is, in particular, stand-up aids according to the preambles of claims 1, 4 and 9 as well as methods according to the preambles of claims 13, 15 and 17.
  • a stand-up aid according to the preamble of claim 1 is known from GB 2 296 941 A.
  • a stand-up aid according to the preamble of claim 4 is known from US 4,905,329.
  • a stand-up aid according to the preamble of claim 10 is known from a number of documents, for example from US 4,629,162.
  • GB 2 296 941 A discloses inflatable lifts for injured or disabled persons.
  • the lifting devices consist of a stack of inflatable bags.
  • Each bag consists of a lower and an upper flexible, inelastic, impermeable layer (English: panel, sheet), whose edges are interconnected.
  • the lower and upper layers are repeatedly connected by equally long webs (English: web), so that each bag when inflated approximately forms a cuboid with rounded edges.
  • the layers may for example be made of a plastic-coated fabric.
  • the seat cushion consists of two superimposed, inner hoses whose front cross-section is limited by a restrictive means, so that the Tubes viewed from the side when inflated look wedge-shaped.
  • the two hoses are pneumatically connected to a compressor via a "T-shaped feed valve” (T-shaped feed valve) so that both hoses are inflated simultaneously.
  • the "T-shaped supply valve” seems to be just a T-piece for connecting 3 hoses without valve function.
  • a relief valve (English: relief valve) is mounted, which is opened by the user while sitting down to let the air slowly escape from the two wedge-shaped hoses.
  • a removable cover can be provided to give the two hoses their wedge-shaped form.
  • the compressor is electrically connected to the mains via a switch. An unillustrated safety switch can turn off the compressor when the seat cushion is inflated to seat height.
  • US 4,629,162 describes a pneumatic lifting device for invalids.
  • the lifting device comprises an inflatable, approximately rectangular bag, which is connected via a flexible hose with a compressed air source.
  • the compressed air source may include a vane-type blower, which is driven by an electric motor.
  • a switch for the electric motor is mounted near the user.
  • On the side of the bag is an outlet nozzle for slowly releasing the air from the bag.
  • a similar seating aid is known from WO 89/08437 A1.
  • this seating aid a total of six wedge-shaped hoses are mounted in the inflated state between an upper and lower part of a toilet seat.
  • the upper and lower parts are stiff and connected at the front with a hinge.
  • auxiliary device is known from DE 198 35 974 A1.
  • the auxiliary device is fastened by means of a flexible positioning device to a conventional toilet seat.
  • a stack of three inflatable cushions which are pneumatically connected through openings.
  • a seat is attached on the pillow stack.
  • suitable measures for example intermediate threads or transverse bands, may be provided in each pad.
  • the cushions can be designed and arranged so that they can be successively inflated and / or vented.
  • each cushion can have its own air inlet connection for attaching its own pneumatic line.
  • WO 96/33685 EP 0 822 796 B1 and DE 696 05 781 T2, which belong to the same patent family, disclose an inflatable lifting device and control unit therefor.
  • the lifting device has a left and right chamber, which are filled via a flow valve by a fan unit.
  • the flow valve ensures that the greater part of the air flow is directed into the chamber in which the greater pressure prevails. This has a stabilizing effect when lifting a person.
  • the lifting bag comprises a central chamber and an upper and lower annular chamber.
  • the lifting bag is made from four pre-cut layers. These layers also contain the partitions between the chambers. In the partitions openings for the pneumatic connection of the chambers are cut. Therefore, only a single inlet is needed.
  • stand-up aids or lifting devices which have an inflatable chamber. Most of these stand-up aids comprise an inflexible seat on which some form of cushion is applied, in particular in the stand-up aids described in US Pat. Nos. 5,375,910, 3,449,087 and GB 2 392 087.
  • US 5,742,957 discloses a pneumatic stand-up aid with improved stability.
  • One embodiment of this stand-up aid has an outer rear and a central chamber.
  • Another embodiment has two outer, one rear and one central chamber. Surrounding the central chamber
  • Partitions have openings or made of molded foam, so that when
  • the outer rear or the two outer and the rear chamber First fill the outer rear or the two outer and the rear chamber to be filled first, before the central chamber is filled. This increases the stability during filling.
  • the central chamber is filled.
  • the US 5,316,370 discloses a stand-up, are used in the compression springs.
  • WO 2004/073575 A1 describes an entry and exit aid for cars.
  • an inverted L-shaped structure is inflated. When folded, this structure will fit between the seat and door of the car.
  • EP 0 034 960 A2 describes a pneumatic seat suspension for motor vehicles.
  • a wedge-shaped cushion in particular a wedge-shaped lower cushion, that the upper side of the cushion extends approximately parallel to the thighs of a person sitting or standing upright.
  • the supporting force exerted by the cushion is distributed over as large an area as possible and is therefore pleasant for the persons.
  • An equidistant distribution of the webs in the lower pad provides a surprisingly simple way for an equal load on the webs and the lower pillow wall.
  • the cushion By first inflating the upper cushion and then the lower cushion or vice versa, the cushion is surprisingly stable overall during standing up and sitting down, that is during inflation or emptying of the cushion. This reduces the risk of people falling over the side of the pillow while standing up or sitting down, for example.
  • the successive inflation of upper and lower cushions can in a surprisingly simple way by a spill valve between upper and
  • Upper cushion exceeds the pressure in the lower cushion by a predetermined pressure difference.
  • the closing of the upper and lower pad by means of two valves advantageously reduces the energy consumption of the stand-up aid in the inflated state to zero. Furthermore, the stand-up helps after getting up in the inflated state and is thus ready to assist a person when sitting down.
  • the electric control of the valves allows easy operation via a rocker switch and favors the construction of a simple logic that ensures that the upper cushion is inflated first and the lower cushion is first emptied.
  • a stiff plate on the top of the pillow spreads the weight of a person evenly on the pillow, so that an overpressure in the pillow against the ambient pressure of less than 100 mbar is sufficient even for heavy people.
  • Soft foam together with an elastic fabric cover advantageously increases the seating comfort both mechanically and transpiratively.
  • FIG. 1 shows a section through the pillow according to the invention with a pneumatic and electrical circuit diagram.
  • FIG. 1 shows a stand-up aid according to the invention, the centerpiece of which is the cushion 1.
  • Pneumatic lines are represented by two parallel lines representing the two side walls of a longitudinally cut tube.
  • Electrical lines are represented as usual by simple lines.
  • the cushion 1 comprises a top cushion 2 with webs 4 and a connection 9, a bottom cushion 3 with webs 5 and a connection 10, a hard support 6, foam 7 and an elastic fabric cover 8.
  • the webs 4 and 5 structure the upper cushion 2 or the Lower cushions 3 and are at least partially welded to the cushion wall 31 of upper or lower cushions 2 and 3 respectively.
  • the webs 4, 5 either have openings or are not completely welded to the cushion wall 31, so that the entire upper pad 2 and the entire lower pad 3 can be completely inflated by a respective port 9 and 10 respectively.
  • the cushion 1 rests on the seat surface of a chair, with the higher side near the chair back and the flat side right side of the cushion near the back of a chair in FIG.
  • the webs 4 in the upper cushion 2 have the same shape and are arranged equidistantly in the upper cushion 2 from left to right. In particular, the webs 4 in the upper cushion 2 are the same height.
  • the upper cushion 2 is flattened on its front side. By the webs and the flattening receives the upper cushion 2 has an approximately trapezoidal cross-section. The flattening on the front prevents a person from losing contact with the ground during the inflation of the pillow.
  • the webs 5 in the lower pad 3 are also equidistant, arranged from left to right and parallel. However, the height of the webs increases in Figure 1 from right to left linear, so that the lower pad 3 receives a wedge-shaped cross-section and is also referred to as a wedge pillow.
  • a layer of soft Foam 7 is provided to increase the seating comfort.
  • the soft foam 7 can absorb and dissipate sweat better than the hard pad 6 or the underlying cushion wall 31.
  • the elastic fabric cover 8 surrounds the entire pad 1, the pad 6 and the foam. 7
  • the support 6 may consist of plastic.
  • the hard pad 6 covers the upper cushion 2 in width almost completely. But it can be kept a little narrower, since in the outermost lateral area, the upper cushion 2 in the inflated state has a curvature, i. there does not reach the full height. Thus, a gap between support and cushion would form here. Furthermore, a supernatant hard edition u. U. get caught on the side chair back.
  • the support 6 can be flat.
  • the advantage is a slight upward curvature on the edge, as in most chairs and seats, as this way the seat position is stabilized.
  • the leading edge may be slightly kinked / flattened. This kink should not be too large, since otherwise in the deflated state of the pillow creates a raised edge in the seating area, namely exactly in the transition region between the flattened front edge and the seat area. This raised edge would be uncomfortable on the underside of the user's thighs. Therefore, in the embodiment shown in Fig. 1, the hard pad 6 does not cover the front flattened part of the pad. Rather, here is only the padding on the pillow.
  • the cushion walls 31 may be made of a rubberized fabric, similar to air mattresses. However, for better transportation, a lighter material is preferable, e.g. Durable films that are welded or glued. The closed, smooth surface of foils is easier to clean than the rough rubberized fabric.
  • PE films are usable.
  • Particularly advantageous PU films have proven with 300 ⁇ m strength. They are easy to weld, very tear-resistant and elastic. The optimum film thickness depends on the selected quality of the PU. PU films are also made of physiologically harmless or biocompatible material, so that even the contact with the skin over long periods of time is not critical.
  • the hard pad 6 and the soft foam 7 can also be made in a medium-hard, hard-to-bend elastic foam member be summarized. This can be advantageous for smaller cushion designs, eg for children or light persons for reasons of cost.
  • the fabric cover 8 is preferably made of a pleasant material, such as cotton or linen. Here attention is paid to good absorption of sweat and excellent cleanability and washability.
  • a radial fan 23 is used, which meets the necessary conditions due to its high volume flow and low pressure. This achieves sufficiently short inflation times and at the same time generates the required pressure.
  • the upper and lower cushions 2, 3 are typically completely emptied and a person is sitting on the cushion 1.
  • the rocker switch 22 pushes the rocker switch 22 to the right.
  • both the radial fan 23 and the 2/2-way valve 1 1 is electrically connected to the voltage source 21.
  • the normally closed valve 1 1 is opened, so that the valve 1 1, the radial fan 23 pneumatically connects to the upper cushion 2.
  • the valve 1 1 can open in a further embodiment after a delay time after actuation of the rocker switch. This allows the radial fan to run up and build up pressure before air must be pumped. This is especially better if the inflation was interrupted and then continued. Without time delay, it comes first to an outflow of air and a slight drop in the cushion until the radial fan has built enough pressure. With a time-delayed opening, there is a short waiting time for the user, but then the upward movement continues directly. The also normally closed 2/2-way valve 12 remains de-energized during the entire inflation and thus closed.
  • the stand-up aid works very well even when inflated first the lower cushion and then the upper cushion are inflated.
  • the lower, wedge-shaped cushion brings the thighs in an oblique position, the seated person tilts the upper body forward and shifted the weight on his feet.
  • the upper cushion then pushes him up and forwards at the same time, so that he comes well in the state.
  • the pad 1 and the supply hoses and valves are designed so that they can withstand the maximum pressure generated by the radial fan 23, the stand-up is not destroyed, even if the user keeps the rocker switch 22 pressed to the right.
  • the pillow 1 remains even longer time in the inflated state, because the valves 1 1 and 12 and the
  • Overflow valve 14 are closed.
  • the stand-up helps in readiness to assist a person in setting.
  • the person leans against the inflated cushion 1 and pushes the rocker switch 22 to the left.
  • the valve 12 is connected to the voltage source 21 and thereby opened.
  • Radial fan 23 escape into the environment.
  • a filter not shown in Figure 1 is arranged, which prevents the entry of dirt and dust into the system. Blowing off the air in this way causes the filter to blow free, so that its service life is increased.
  • the hoses between the radial fan 23 and the terminal 10 of the lower pad 3 together with the valve 12 and the radial fan 23 constitute a pneumatic resistance.
  • the pressure switch 13 disconnects the valve 1 1 from the voltage source 21. Only when the pressure in the lower pad 3 has fallen below the ambient pressure below about 10mbar, so the lower pad 3 is completely emptied, closes the pressure switch 13, thus opening the valve 1 1, so that subsequently the upper cushion 2 is emptied. After the upper cushion 2 is emptied, the person can release the rocker switch 22, which then returns to the center position.
  • the voltage source 21 is normally a power supply that supplies DC voltage at a suitable level. In other embodiments, the voltage source 21 can also be the electrical system of a motor vehicle or a car battery.
  • three or more cushions can be arranged one above the other. This is particularly advantageous when very high altitudes need to be overcome, e.g. with deep armchairs. Above all, it is important that the pillows are filled one after the other. In other words, only a cushion should be partially inflated. This pillow is either further filled or emptied. The other cushions are either full or empty for stability. The pneumatic circuit is then u. a. to supplement one or more overflow valves.
  • a special stabilization against lateral tilting is achieved by dividing the cushions into a left and a right half, if it is ensured that when Filling and emptying each equal amounts of air supplied or removed.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Nursing (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Invalid Beds And Related Equipment (AREA)

Abstract

L'invention concerne un dispositif d'aide à la levée gonflable comprenant un coussin supérieur (2) gonflable et un coussin inférieur (3) gonflable. Le coussin supérieur (2) présente plusieurs arêtes (4) de même hauteur. Le coussin inférieur (3) est disposé sous le coussin supérieur (2). Le coussin inférieur (3) peut également présenter une pluralité d'arêtes (5) lui conférant une section cunéiforme à l'état gonflé. Le dispositif d'aide à la levée peut comprendre une soupape (14) qui relie le coussin supérieur (2) au coussin inférieur (3) lorsque la pression dans le coussin supérieur (2) dépasse la pression de l'air ambiant d'une certaine différence de pression. Ce dispositif d'aide à la levée peut comprendre également un ventilateur centrifuge (23) qui sert à gonfler le coussin et qui, de par sa conception, peut fournir une pression maximale à laquelle les coussins (2, 3) peuvent résister. L'invention concerne en outre des procédés pour gonfler et dégonfler les coussins.
PCT/DE2009/050049 2008-09-03 2009-09-02 Dispositifs d'aide à la levée gonflables et procédés pour gonfler et dégonfler ces dispositifs d'aide à la levée Ceased WO2010025722A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112009002685T DE112009002685A5 (de) 2008-09-03 2009-09-02 Aufblasbare Aufstehhilfensowie Verfahren zum Aufblasen ind Entleeren der Aufstehhilfen

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008045486 2008-09-03
DE102008045486.9 2008-09-03

Publications (2)

Publication Number Publication Date
WO2010025722A2 true WO2010025722A2 (fr) 2010-03-11
WO2010025722A3 WO2010025722A3 (fr) 2010-07-01

Family

ID=41538657

Family Applications (1)

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PCT/DE2009/050049 Ceased WO2010025722A2 (fr) 2008-09-03 2009-09-02 Dispositifs d'aide à la levée gonflables et procédés pour gonfler et dégonfler ces dispositifs d'aide à la levée

Country Status (2)

Country Link
DE (1) DE112009002685A5 (fr)
WO (1) WO2010025722A2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU92177B1 (de) * 2013-03-28 2014-09-29 Orsus Sa Höhenverstellbares Sitzkissen
CN113453650A (zh) * 2019-04-11 2021-09-28 株式会社富士 辅助装置
GB2643081A (en) * 2023-09-15 2026-02-04 Royal United Hospitals Bath Nhs Found Trust Repositioning device
EP4504117A4 (fr) * 2022-04-03 2026-03-18 Life Assistant Ltd Siège montant pour fauteuil roulant

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1673636A (en) * 1928-01-24 1928-06-12 Perry George Hough Cushion for seats and the like
GB313023A (en) * 1928-03-01 1929-06-04 Avon India Rubber Company Ltd Improvements in or relating to air cushions or the like
NL6405067A (fr) * 1964-05-06 1965-11-08

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU92177B1 (de) * 2013-03-28 2014-09-29 Orsus Sa Höhenverstellbares Sitzkissen
CN113453650A (zh) * 2019-04-11 2021-09-28 株式会社富士 辅助装置
CN113453650B (zh) * 2019-04-11 2024-01-02 株式会社富士 辅助装置
EP4504117A4 (fr) * 2022-04-03 2026-03-18 Life Assistant Ltd Siège montant pour fauteuil roulant
GB2643081A (en) * 2023-09-15 2026-02-04 Royal United Hospitals Bath Nhs Found Trust Repositioning device

Also Published As

Publication number Publication date
WO2010025722A3 (fr) 2010-07-01
DE112009002685A5 (de) 2011-09-29

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