EP3944847A1 - Hilfsvorrichtung für personen mit eingeschränkter mobilität - Google Patents

Hilfsvorrichtung für personen mit eingeschränkter mobilität Download PDF

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Publication number
EP3944847A1
EP3944847A1 EP21188033.1A EP21188033A EP3944847A1 EP 3944847 A1 EP3944847 A1 EP 3944847A1 EP 21188033 A EP21188033 A EP 21188033A EP 3944847 A1 EP3944847 A1 EP 3944847A1
Authority
EP
European Patent Office
Prior art keywords
seat
patient
mast
axes
fixed
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.)
Granted
Application number
EP21188033.1A
Other languages
English (en)
French (fr)
Other versions
EP3944847B1 (de
Inventor
Amir Elhajhasan
Stéphanie Jacot
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.)
Fair & Square Sarl
Original Assignee
Fair & Square Sarl
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Filing date
Publication date
Application filed by Fair & Square Sarl filed Critical Fair & Square Sarl
Publication of EP3944847A1 publication Critical patent/EP3944847A1/de
Application granted granted Critical
Publication of EP3944847B1 publication Critical patent/EP3944847B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A61G7/1001—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto specially adapted for specific applications
    • A61G7/1011—Picking up from the floor
    • 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
    • A61G5/1056—Arrangements for adjusting the seat
    • A61G5/1059—Arrangements for adjusting the seat adjusting the height of the seat
    • 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
    • A61G7/1019—Vertical extending columns or mechanisms
    • 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
    • A61G7/104—Devices carried or supported by
    • A61G7/1046—Mobile bases, e.g. having wheels
    • 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
    • A61G7/1049—Attachment, suspending or supporting means for patients
    • A61G7/1059—Seats
    • 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
    • A61G2203/00—General characteristics of devices
    • A61G2203/10—General characteristics of devices characterised by specific control means, e.g. for adjustment or steering
    • A61G2203/22—General characteristics of devices characterised by specific control means, e.g. for adjustment or steering for automatically guiding movable devices, e.g. stretchers or wheelchairs in a hospital
    • 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
    • A61G7/1073—Parts, details or accessories
    • A61G7/108—Weighing means
    • 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
    • A61G7/1073—Parts, details or accessories
    • A61G7/1082—Rests specially adapted for
    • A61G7/1092—Rests specially adapted for the arms

Definitions

  • the present invention relates to a device for assisting people with reduced mobility. In particular, it is about helping people to get up in the event of a fall at home, with a minimum of effort.
  • the device can also be used by a third party either at home or in a hospital environment.
  • the patient is at home, in a hospital environment or in a medical institution, his need for autonomy must be able to be satisfied, at least in part. If he has a clean space such as a room or an apartment, he must be able to get up or move around without the systematic help of medical personnel.
  • the assistance device made available to him must also allow easy intervention by a third party, in particular part of the medical staff.
  • the costs of equipment, the size of the equipment as well as the diversity of the different devices used represent a major challenge. Depending on the manipulations to be undertaken, several types of devices may be necessary, in particular if it is a question of transferring a patient, raising him or simply moving him.
  • a device specifically adapted to the autonomy of the patient and not making it possible to satisfy the other needs of the medical profession is to be avoided.
  • the number and/or diversity of personal assistance devices present in the medical institution should not be increased. It is preferable to reduce the number and/or the diversity thereof while allowing greater flexibility of use. In this case, it is necessary to satisfy the autonomy of the patient, while suitably allowing multiple manipulations on the part of the nursing or accompanying personnel.
  • the document FR3086168 describes a mini lift for disabled people. It comprises a movable seat in height along a mat, on which the patient sits by placing his legs on either side of the mat. Such a device, if it makes it possible to facilitate the transfer of a disabled person from a wheelchair to another place, is not suitable for lifting a person on the ground.
  • the document GB2344579 proposes an alternative device allowing a patient to be placed in a wheelchair but remaining unsuitable for lifting them in the event of a fall on the ground.
  • the document GB2492837 describes a portable device for raising a patient on the ground, comprising a flexible seat stretched between two arms and which can be lifted once the patient is installed on it.
  • the device is however not easily mobile, telescopic arms must be deployed to ensure its stability, which obliges the patient to several manipulations before being able to get up. He must also be able to move to the device to be able to benefit from it.
  • Such a device most often requires the intervention of a third party and does not give the patient all the autonomy expected.
  • the document US2012104818 describes a tubular structure mounted on wheels and having a movable seat in height on three contact points for more robustness.
  • the seat thus surrounded by the tubular structure and the lifting devices remains inaccessible for a person on the ground, who must position themselves in the axis of the seat in order to be able to install themselves there.
  • An object of the present invention is to provide a device that is both easy to handle and robust and suitable for autonomous use by the patient.
  • an object of the present invention is to provide an assistance device for people with reduced mobility so that they can use it completely independently, the device being easily accessible and usable without the help of a third party. .
  • Another object of the invention is to provide an assistance device suitable for several uses, which may or may not involve a person other than the patient.
  • the present device can be used by the patient independently, as well as by a third party.
  • the device according to the present invention is thus adaptable or modular according to the environment and the uses. More particularly, the device according to the present invention can be adapted for use exclusively in hospitals or medical institutions for the attention of nursing staff. It can be intended for mixed use in a hospital environment or at home, allowing both the intervention of medical personnel and the autonomy of the patient. It can also be adapted for exclusively personal use, at home and in total autonomy.
  • An objective of the present invention is to propose an assistance device that can be modulated according to the applications or the circumstances.
  • the claimed assistance device includes a single mast, leaving free the perimeter of the seat fixed to the mast, allowing maximum accessibility to the seat.
  • the seat is fixed to the mast by part of its backrest, leaving its lower part free so as to improve its amplitude of travel.
  • the seat cushion can thus descend to the ground.
  • the seat frame is designed in such a way as to preserve the necessary sturdiness while improving the ergonomics and suitability of the device for many different situations.
  • This solution has the particular advantage over the prior art of giving the patient in a situation of reduced mobility more autonomy.
  • the assistance device according to the present description is furthermore adaptable to several different applications and to various environments, including personal dwellings, hospital environments and nursing homes. It is for this purpose modular, in particular as regards the seat.
  • the assistance device according to the present description thus allows patient transfer functions as much as patient lifting.
  • the term "patient” means any person with reduced mobility, whether hospitalized or not, regardless of the causes of the lack of mobility. Reduced mobility is reflected in particular by difficulty getting up from a seat or getting into it, standing up to move from one place to another, bending down or sitting down. It also results in an inability to get up without help in the event of a fall to the ground.
  • the present assistance device therefore provides support and comfort for the movements of the patient, as well as assistance which may prove to be vital in the case of isolated patients.
  • the assistance device 1 is presented in figure 1 . It comprises a frame 2 surmounted by a single mast 3 on which is fixed a seat 4.
  • the frame 2 comprises at least two side members 21 joined by a cross member 22.
  • the crosspiece 22 can be arranged approximately in the middle of the two longerons 21 so that the four ends of the two longerons are located approximately at equal distance from the mast 3.
  • the crosspiece 22 can be arranged at the end of the two beams 21 so that the assembly formed by the crosspiece 22 and the beams forms a U.
  • the crosspiece 22 can be arranged eccentrically relative to the beams 21 and at a distance from their end.
  • the crosspiece 22 can for example join the beams 21 at around a third or around a quarter of their length, or at any other off-centre location.
  • the longitudinal members 21 thus each have a long portion 21a and a short portion 21b with respect to the crosspiece 22.
  • the relative length of the long 21a and short 21b portions can be adapted according to requirements.
  • the longest portion of the spars 21 is preferably oriented on the same side of the mast 3 as the seat 4.
  • the seat 4 comprises a backrest 41 and a seat 42 integral with the backrest 41.
  • the backrest 41 comprises a bottom 410 associated with at least 2 side frames 410a, 410b and at least one, or even at least two, central frames 411a, 411b.
  • the side frames 410a, 410b are each integral, at their lower end, with an axis 420a, 420b disposed at right angles to the corresponding reinforcement.
  • the side frames 410a, 410b are made so as to keep the axes 420a, 420b parallel to each other.
  • the axes 420a, 420b make it possible to maintain the seat 42 of the seat which can be a flexible seat of fabric or leather or rubber or made of a synthetic polymer.
  • the seat 42 is thus arranged between the axes 420a, 420b. It is preferably loose, so as to descend below the level of the axes 420a, 420b which support it. In particular, the seat 42 descends below the level of the axes 420a, 420b by a distance of the order of 1 to 6 cm, such as approximately 3, 4 or 5 cm. In this way, the seat 42 can easily be brought into contact with the ground.
  • the thickness of the seat 42 is also sufficiently thin to limit, or even avoid, any obstacle for the patient on the ground.
  • the thickness of the seat is for this purpose preferably less than 1 cm, preferably less than 5 mm.
  • the seat 42 may have a thickness of the order of 1 to 2 mm.
  • the material is chosen so as to be compatible with the hygiene and resistance requirements of medical environments. It may for example be made of synthetic polymer, such as PVC. It is advantageously reinforced with a flexible integrated reinforcement. Preferably, the flexible seat is not elastic.
  • the side frames 410a, 410b are oriented parallel to the mast 3.
  • An important aspect of the architecture of the seat is its robustness. In particular, when a patient settles down on the seat 42, the force of gravity tends to bring the axes 420a, 420b closer together under the effect of the patient's weight. For the patient's comfort and safety, it is important that the axes 420a, 420b remain parallel to each other, including in the case where a heavy load is placed on the seat.
  • the axes 420a, 420b can be steel tubes that are sufficiently robust so that their deformation remains minimal or zero. Their point of attachment to the backrest 41, by means of the side frames 410a, 410b, however, remains crucial for the rigidity of the assembly. For the reasons of accessibility mentioned above, it is important that the seat be free of any obstacle, which prohibits the presence of a reinforcement arranged between the axes 420a, 420b.
  • the side frames 410a, 410b are arranged so as to limit the deformations of the seat 4 while preserving the lightness of the device 1.
  • the side frames 410a, 410b each take the form of a thin longitudinal plate, between 0.5 ml and about 2 cm.
  • the width of the plate is oriented along the axis 420a, 420b to which the side reinforcement is connected so as to increase the contact surface thereof.
  • the edge of the side reinforcement can thus be associated by welding to the surface of the corresponding pin 420a, 420b.
  • the edge of the side reinforcement can be inserted into the axis 420a, 420b to reinforce its cohesion.
  • the axes 420a, 420b can be fixed on one of the inner or outer faces of the longitudinal plates rather than on their lower edge.
  • the terms “inside” and “outside” define the usual orientations commonly accepted by those skilled in the art.
  • the inner faces of the plates used as side frames 410a, 410b are oriented towards the inside of the seat structure 4 and face each other.
  • the outer faces of the plates used as side frames 410a, 410b are oriented towards the outer space of the seat 4.
  • the width of such plates is adapted according to the resistance required. It may for example be between approximately 3 or 4 cm and more than 10 cm, or even more than approximately 15 cm. However, the width of such plates need not be uniform.
  • the plates used as side reinforcements 410a, 410b can advantageously be wider at their base, point of attachment with the axes 420a, 420b, than at their opposite end.
  • the bottom 410 of the backrest 41 can be welded or screwed onto a longitudinal edge of the plates, so that the width of the plates forms a right angle with the bottom 410.
  • the width of each of the plates used as side frames 410a, 410b is inscribed in a plane perpendicular to the bottom 410 of the backrest 41 and each comprising one of the two axes 420a, 420b.
  • the side reinforcements can be fixed to the bottom 410 by any suitable means such as welding or screwing or equivalent, the side reinforcements can be obtained by bending, under a press adapted, a single plate to form the bottom 410 and the side frames 410a, 410b in one piece.
  • the plates serving as side frames 410a, 410b can be arranged in contact with the outer edges of the bottom 410 or set back from the outer edges of the bottom 410. In the case where the plates are set back from the side edges of the bottom 410, the resulting lip can be folded over the outer face of the plate, so as to cover the plate, either partially or completely. According to this arrangement, the side reinforcements 410a, 410b are reinforced. In addition, the edges of the bottom 410 once folded over the side frames 410a, 410b can be fixed there by welding or screwing or crimping so as to further consolidate the assembly.
  • the facade 412 can be sized to exceed the side frames 410a, 410b so as to leave a lip protruding towards the edge of the backrest 41 ( figure 2c ).
  • the lip of the facade can be folded over the outer face of the side reinforcement 410a, 410b, so as to cover it, either partially or completely.
  • the bottom 410 and the front 412 are both dimensioned so as to allow the lips to protrude on either side of the lateral reinforcements 410a, 410b, which thus remain recessed with respect to the outer edges of the backrest.
  • a finishing plate or a coating can be added to fill the space between the lips of the bottom 410 and the facade and hide the side reinforcements.
  • the bottom 410 and the front 412 can also be dimensioned so that their height is greater than the length of the side and central reinforcements, so that they can be folded over the field of the file in the upper and lower part ( figure 2c ).
  • the side frames are also held by a front 412 of the backrest 41, arranged parallel to the bottom 410. In this way, any deformation of the side frames towards the inside of the seat 4, under the effect of the weight of the patient, is counteracted.
  • the front 412 can be welded to the longitudinal edge of the plates still free, opposite to that already associated with the bottom 410. It can alternatively be screwed or maintained by any suitable means. It follows from this structure that the backrest 41 of the seat 4 is generally hollow, and therefore light.
  • the assembly formed by the axes 420a, 420b, the side frames 410a, 410b, the bottom 410 and the front 412 remains very robust, however.
  • the bottom 410, the side frames 410a, 410b, the axes 420a, 420b, the front 412 and the central frame(s) 411a, 411b can be entirely metallic.
  • one or more of these elements can be made of a non-metallic material, such as a hard polymer, a plastic.
  • one or the other of the bottom 410 and the front 412 or both can be made of plastic.
  • the assembly formed by the bottom 410, the front 412 and the side reinforcements 410a, 410b can be entirely or partially covered or encapsulated with a protective and/or aesthetic material such as a hard plastic or soft.
  • Shafts 420a, 420b are typically cylindrical metal tubes of sufficient diameter to withstand the weight of a patient. Their diameter can for example vary from approximately 1 cm to 2 or 3 cm depending on the material used and its thickness. Their length is adapted to a comfortable and secure seat of the patient. It can vary from about 30 cm to about 50 cm.
  • the end of the axes 420a, 420b linked to the side frames can be included in the front 412, which makes it possible to increase the robustness of the assembly and its aesthetics.
  • a lower plate can be arranged at the base of the backrest 41 (not shown) from one axis to the other, allowing both to close the remaining opening between the bottom 410 and the front 412 and to further consolidate all.
  • spacers can be arranged in the thickness of the backrest 41 between the two lateral reinforcements 410a, 410b to minimize any deformations.
  • the seat 4 is held to the mast 3 by its backrest 41.
  • the backrest 41 comprises at least one central frame 411, preferably two central frames 411a, 411b, oriented parallel to the mast 3 and arranged in the thickness of the backrest 41, that is to say between the bottom 410 and the front 412.
  • the central reinforcement(s) 411a, 411b can take the form of plates identical to those used as side reinforcements 410a, 410b. Other shapes can nevertheless be envisaged, such as a tube of square or rectangular section.
  • the central reinforcement(s) 411a, 411b comprise at least one attachment point 413a, 413b to the mast 3.
  • Such an attachment point 413a, 413b can for example take the form of a flange enclosing the central reinforcement 411a, 411b and crossing the bottom 410 of the backrest 41 to be fixed to the mast 3.
  • a U-shaped flange can thus be fixed to the mast 3 by its two free ends, by welding or screwing or any other suitable means, while maintaining the reinforcement(s) 411a, 411b of the backrest 41.
  • the central reinforcement(s) 411a, 411b are screwed directly to the central mast 3 at the fixing points 413a, 413b.
  • the central reinforcement(s) 411a, 411b comprise at least two attachment points to the mast 3, which can be optimally distributed along the central reinforcements to ensure both robustness and rigidity to the backrest 41 of the seat 4.
  • the fixing points 413a, 413b can be arranged on a central frame 411a, 411b at around one third and around two thirds of its height, or at around one quarter and around three quarters of its height. So as to leave the lower part of the backrest 41 free, to allow the seat 42 to come into contact with the ground, the attachment points 413a, 413b are preferably arranged on the upper part of the central frame(s) 411a, 411b, corresponding to one-half or two-thirds of their length.
  • the central reinforcements 411a, 411b can be fixed to the mast 3 by through studs (not shown), in particular in the case where the central reinforcements 411a, 411b are tubular.
  • the central reinforcements 411a, 411b like the side reinforcements are in contact with both the bottom 410 and the front 412 of the backrest 41, which limits their deformation.
  • file 41 contains several central reinforcements 411a, 411b, they can be connected to each other, or to each other, by transverse fishplates, further stiffening the assembly.
  • Transverse splints can also be provided between the central reinforcements 411a, 411b and the side reinforcements 410a, 410b.
  • the seat 4 is advantageously provided with armrests 43 on which the patient can lean to position himself on the seat 42 of the seat 4.
  • the armrests 43 must therefore themselves be robust and support the weight of the patient. It should in particular that they do not sag under the weight of the patient, and that they do not shift, either towards the interior or towards the exterior of the seats 4 under the efforts of the patient to hoist himself on the seat 42.
  • the armrests are advantageously fixed to the side frames 410a, 410b of the backrest 41, the rigidity and robustness of which make it possible to support the efforts of the patient.
  • each side frame 410a, 410b can be provided on its outer face with a connection button 414a, 414b, making it possible to connect an armrest 43.
  • connection button 414a, 414b shares with the side frame 410a, 410b corresponding to a sufficiently large surface to limit or avoid possible slopes due to the leverage effects of the armrest 43 during the efforts of the patient.
  • the connection buttons 414a, 414b are therefore not limited to pivot axes fixed to the side frame 410a, 410b. They take for example the form of a cylinder, one of the faces of which is fixed or integrated into the lateral frame 410a, 410b. The cylinder can thus occupy the entire width of the plate serving as lateral reinforcement 410a, 410b. The leverage effects resulting from the forces applied to the armrests 43 are thus minimized or even canceled.
  • the plate used as lateral reinforcement 410a, 410b can have an increased width at the level of the connecting buttons 414a, 414b so as to be able to increase the diameter of the connecting buttons 414a, 414b and consequently the contact surface with the corresponding lateral reinforcements 410a , 410b.
  • the connection buttons 414a, 414b can be integrated into the thickness of the side frames 410a, 410b.
  • the side frames 410a, 410b are pierced with a hole of suitable diameter to accommodate the connection buttons 414a, 414b, which can be embedded in the thickness of the side reinforcement 410a, 410b, then optionally welded or riveted.
  • the connecting buttons can be directly welded to the outer surface of the side frames or screwed into the side frames 410a, 410b.
  • the armrests 43 are advantageously retractable to facilitate the patient's access to the seat 42.
  • the armrests can for example be pivoted upwards, from a position allowing support to be taken, towards a retracted position.
  • a retracted position corresponds for example to an orientation of the armrest parallel to the longitudinal axis of the side frame, in the plane formed by the backrest 41 of the seat.
  • the position allowing support typically corresponds to an orientation of the armrests 43 parallel to the axes 420a, 420b of the seat 42.
  • the connecting buttons 414a, 414b are arranged so as to allow the rotation of the armrests 43 from one of the positions support and retracted towards the other.
  • connection buttons 414a, 414b are rotatably mounted in the side frames 410a, 410b, so as to allow the armrests 43 to pivot.
  • the 2d and 2e figures show a file similar to that of the figures 2a, 2b and 2c , with the difference that the front 412 and the central frames 411a', 411b' or the side frames 410', or all the central and side frames are molded in one piece with the front 412, or else with the bottom 410
  • the assembly may for example be cast in aluminum or in cast aluminum. The manufacturing time is reduced and the robustness is better.
  • the weight of the seat is not marred unduly.
  • attachment points 413a', 413b' can be provided directly in the molding.
  • a person skilled in the art understands that the elements assembled by welding, screwing, riveting, embedding described above, can alternatively be part of a molded assembly or cast in a single block.
  • the frame 2 like the seat 4, is arranged so as to remain light while retaining the robustness necessary for the needs.
  • the details are visible at figures 3a and 3b .
  • the crosspiece 22 comprises a bottom 221a, two side panels 221b and a top 221c, such that the crosspiece 22 is generally hollow. At least one splint, or even two splints 222a, 222b are arranged between the bottom 221a and the top 221c of the crosspiece 22.
  • the splint(s) 221a, 221b can be welded or screwed both to the bottom 221a and to the top 221c of the crosses 22 so as to maintain its integrity.
  • the side panels of the crosspiece 22 can also be fixed to the fishplates 222a, 222b for better robustness.
  • the splints 222a, 222b serve as an anchor for the mast 3, which can be screwed there through the top 221c of the crosspiece 22.
  • the splints 222a, 222b each comprise at least one hole, preferably two holes, allowing the passage of screws or bolts through the crosspiece 22 so as to screw the mast 3 from the bottom 221a of the crosspiece 22.
  • the bottom 221a, the side panels 221b and the top 221c of the crosspiece 22 can be fixed and/or integrated into the beams 22 by their ends.
  • the beams 22 are also hollow, as shown in figure 3b .
  • one or more of the fishplates mentioned above can be molded directly with the crosspiece or the side members.
  • the beams 22 can be equipped at each of their ends with a wheel 5.
  • the wheels 5 can all be identical and free to rotate along a vertical axis. These are idler wheels which give the device 1 great maneuverability. The stability of the device can however be affected, especially when the patient leans on the device 1 to settle on the seat 42.
  • the idler wheels can each be provided with an individual locking system so as to avoid untimely movements of the device 1. However, this arrangement remains impractical because the idler wheels must then be individually released from their brake once the patient is in place on the seat 42.
  • the device 1 comprises at least one fixed wheel, preferably two fixed wheels 5a, 5b, so as to limit the uncontrolled movements of the device 1.
  • the fixed wheels 5a, 5b are preferably arranged on the short portion 21b of the beams 21. They are also advantageously arranged on their inside face of so as to limit the size of the device 1.
  • a braking means 441 makes it possible to immobilize at least one of the fixed wheels 5a, 5b, preferably the two fixed wheels at the same time.
  • Such braking means may for example be one or more buffers actuated by a cable 442 between a contact position on the wheel, allowing it to be braked, and a position away from the wheel.
  • the cable 442 can be activated by a manual control 44 placed within reach of the patient.
  • the manual control can be activated by the patient regardless of his situation, whether he is installed on the seat 42 or on the contrary resting on the device to settle there.
  • the patient can easily manually activate the brake while leaning on the device 1, which facilitates the lifting operation when he is on the ground and limits the risks of losing his balance during the operation. There is no need for a third person to maintain the device 1, which gives the patient all the autonomy required.
  • the present invention includes any variant, including a chassis comprising only 3 wheels.
  • the crosspiece 22 can be arranged at the end of the beams 22 so as to form a U, the beams being limited to their long portion 21a.
  • a third spar can be arranged in the central part of the crosspiece 22 opposite the two spars 21. This third spar can be equipped with a wheel at its end so that the assistance device 1 has three wheels.
  • the brake control 44 is preferably arranged on one of the armrests 43. It makes it possible to actuate the cable 442 and to brake the fixed wheels 5a, 5b.
  • the position of the seat 4 being variable with respect to the wheels 5 of the device, the length of the cable 442 is such that the brake can be activated independently of the position of the seat 4.
  • the mast 3 is fixed to the crosspiece 22 by an anchor pillar 31. It comprises one or more movable supports 32a, 32b which can slide relative to each other along their longitudinal axis ( figure 4 ). The mast 3 can thus be deployed telescopically from a retracted position, to a deployed position.
  • the seat 4 is fixed to the mobile support 32 or to the last of the mobile supports 32b, so that it can be moved from a low position to a high position and vice versa.
  • the seat 4 is fixed in such a way that when the mast 3 is in the retracted position, the seat 42 rests on the ground. In other words, the lower part 415 of the backrest 41 remains free at least over a height equal to the height of the frame 2.
  • the height of the frame 2 designates the distance separating the top 221c from the crosspiece 22 on the ground. It can be between 10 and 20 cm approximately, or of the order of 12 to 15 cm.
  • Mast 3 includes a lifting device (not shown) allowing it to be deployed and retracted.
  • a lifting device may for example be an endless screw, a jack, a wound cable system or any other suitable device for the deployment of the mobile supports 32a, 32b.
  • the lifting device is preferably incorporated in the mast 3. It can be actuated by an electric motor (not shown) disposed in the mast 3, or in the frame.
  • the longitudinal members 21 and/or the crosspiece 22 can comprise internal or external reinforcements.
  • one of the ends or both ends of each spar 21 can be equipped with an internal reinforcement.
  • the figure 3b shows an example of such reinforcements 225a, 225b arranged inside the hollow structure of frame 2.
  • the assistance device 1 thus allows a great movement of the seat 4, from its low position where the seat 42 is in contact with the ground, towards a high position where the seat allows the patient to stand up easily.
  • the seat In the high position, the seat is at a height between approximately 50 cm and 1 m, or between approximately 60 cm and 90 cm, or around 70 cm, depending on the uses of the device 1 and the size of the patients.
  • the electric motor involved in the deployment of the mast 3 can be actuated by means of a control device which can be fixed or integrated into the device 1, or else independent of the device 1.
  • the control of the mast 3 can for example be actuated from an armrest 43. This arrangement is however not optimal, because it obliges the patient on the ground to reach the armrest 43 to lower the seat 42 to the ground.
  • the control device is advantageously free and connected to the assistance device 1 by a twisted electric wire. It can take the form of a box comprising the controls necessary to operate the mast 3 and adapt the position of the seat 4.
  • One or more attachment systems can be arranged on the assistance device 1 to removably attach the control box.
  • a system of clips or a suitable housing can be arranged on the frame to house the control box therein, so that the patient on the ground can easily grab hold of it to lower the seat.
  • Another attachment system identical or different, can be arranged on the seat 4, allowing the patient to accommodate the control box there once installed on the seat 42.
  • the control device is alternatively a remote control which the patient can carry with him and which makes it possible to actuate the mast 3, even from a distance.
  • the motor involved in the activation of the mast 3 can also be able to activate the braking of the fixed wheels 5a, 5b.
  • the control device may comprise, in addition to the controls of the mast 3, a braking control by means of suitable braking systems 441 . The patient is then able to immobilize the assistance device 1 while keeping both hands free. Once installed on the seat, all he has to do is activate the control to release the brakes.
  • one or more of the fixed wheels 5a, 5b are also driven, activatable by an electric motor, which may be the same motor as that involved in the activation of the mast 3 or another motor.
  • An independent motor for each wheel can be provided.
  • the braking is performed by the motor or motors connected to the fixed wheels 5a, 5b.
  • the control device in addition to controlling the deployment of the mast 3, here comprises the means of activating the motor or motors of the fixed wheels, thus making it possible to advance and turn the assistance device 1.
  • the patient on the ground can easily remote control the assistance device 1 to bring it closer to him and settle there.
  • the brake control 44 arranged on the armrest 43 can be replaced by a control system such as a joystick, making it possible both to actuate the mast 3 and to control the advance and the orientation of the assist device 1.
  • a rechargeable battery can be included on the frame 2 or on the mast 3.
  • a warning device can also be provided to inform the patient or a third person of the battery charge level.
  • Other accessories may be provided, such as a seat belt, sensors making it possible to identify the presence of the patient on the seat and/or the position of the seat 4, or devices for connection to a remote monitoring network.
  • a disengagement system can be provided to allow the fixed wheels 5a, 5b to be released and allow the patient or a third person to use the assistance device 1 manually.
  • the assistance device 1 can thus be used indiscriminately in a hospital environment by nursing staff and at home for autonomous use.
  • An additional brake control can be placed on the mast 3 so that it can be operated by a third person.
  • a foot brake control can be arranged on the chassis to be used by a third person.
  • the assistance device 1 as described here can be used in different configurations.
  • the patient, at home, can use it completely independently, to get up from a fall, to get up from an armchair and go from one place to another, or to facilitate daily life by allowing adapt the height of the seat.
  • the patient can thus easily access his lowest cupboards, or on the contrary to high shelves without risking loss of balance or excessive effort.
  • the assistance device 1 does not exclude the help of third parties.
  • the mast 3 and/or the backrest 41 can be provided with one or more handles allowing a third party to manipulate the assistance device 1 while the patient is installed there. Medical personnel can also take advantage of the assistance device 1 in their daily tasks with their patients.
  • the assistance device 1 can be operated in several versions, motorized or not, depending on the intended uses.
  • the seat 42 is flexible and arranged on the axes 420a, 420b.
  • the seat 42 can be permanently fixed on the axes 420a, 420b, it can alternatively be arranged there in a removable manner.
  • the seat 42, flexible, may comprise for this purpose a hollow winding on each of its sides allowing the pins 420a, 420b to be inserted therein. It is understood that the hollow winding can be replaced by a system of eyelets, or rings or any equivalent alternative.
  • the seat 42 can then be easily slid on the axles to be installed or removed there. According to this arrangement, holding means 60a, 60b ( figure 6 ) can be provided to prevent the seat 42 from slipping unexpectedly from the axes 420a, 420b.
  • Such holding means may for example be caps which can be inserted into the end of the pins 420a, 420b and comprising a wider head making it possible to hold the seat in place. They can for example be screwed or clipped, or include a lever clamping system, or any other suitable device. In this way, the patient, when he is on the ground, can indifferently hoist himself up on the seat 42 in the low position or else separate the seat 42 from the axes 420a, 420b, sit on it and then insert the axes again. 420a, 420b to initiate lifting.
  • FIG. 7 shows a different seat 42' which can be placed on the axes 420a, 420b to replace the flexible seat 42 described above, depending on requirements.
  • the seat 42' can for example be rigid, which is more suitable for transferring patients.
  • the seat 42' comprises one or more rings 42a', 42b' in which the pins 420a, 420b can slide or any other suitable means allowing the seat to be placed on the pins 420a, 420b.
  • a holding means 60a, 60b as described above, can be provided to hold the seat 42'.
  • a removable seat comprising feet can alternatively be placed on the axes 420a, 420b.
  • a seat preferably rigid, like the rigid seat described above, has the necessary means to be slid on the axes 420a, 420b.
  • Such a seat further comprises several feet, at least three, preferably four, so as to be able to act as an independent seat.
  • the axes 420a, 420b of the assistance device can then be slid into the seat, when the patient is seated on it, so as to be able to move him easily from one place to another without forcing him to change his position and without transfer it from one medium to another medium.
  • Such an arrangement is advantageous, in particular for placing the patient in the shower or in other places where his transfer can be tricky.
  • the feet can be foldable, retractable or removable, so as not to hinder the movement of the patient once installed on the device.
  • the assistance device 1 may comprise a footrest 50 which can be arranged on the frame ( figure 6 ).
  • the footrest 50 is removable so as to confer an optimal modularity on the assistance device 1.
  • It can comprise for example two lateral supports 50a, 50b which can each be fixed on an arm of the frame.
  • the supports 50a, 50b can for example comprise clips on their lower surfaces adapted to the dimensions of the frame.
  • the footrest 50 comprises a support surface 50c, between the supports, adapted to receive the patient's feet, once he is seated on the seat in the high position. This notably allows a third person to manipulate the assistance device 1, and to lead the patient from one place to another while keeping his feet above the ground.
  • the assistance device 1 can be provided with pressure sensors, making it possible to determine the weight of the patient.
  • pressure sensors can for example be incorporated into the rigid seat 42' so as to act as a personal scale, or else into the independent seat provided with feet.
  • pressure sensors can be arranged at the level of the wheels, in the structure of the chassis, at the level of the mast or elsewhere on the device. This makes it possible in particular to limit handling of the patient when he must be weighed regularly in the context of medical monitoring. Its weighing is in this case concomitant with its displacement or transfer.
  • the value of the weight thus determined can be displayed on a digital display or by any other display means arranged on the assistance device, or transmitted to a terminal.
  • the assistance device 1 can be provided with a fall detection system.
  • a fall detection system may for example comprise a motion detection device, or a sound or vibration sensor, or a set of several types of sensors.
  • An analysis system can be associated with it so as to determine whether it is a fall.
  • Such an analysis system can include an artificial intelligence or deep empering module.
  • the patient can be equipped with a fall detector adapted to communicate with the assistance device 1 in the event of a fall. When it is motorized and a fall is detected, the assistance device 1 can be automatically activated towards the patient to assist him and help him get up. Automatic guidance systems known to those skilled in the art can be provided for this purpose.
  • the assistance device 1 can for example be marketed in combination with a kit of accessories comprising a flexible seat 42, a rigid seat 42', which may or may not be provided with pressure sensors, and a footrest 50.
  • the present description thus covers a method of raising a patient with low autonomy, using the assistance device described here.
  • the method includes a first step of bringing the device closer to the patient.
  • the assistance device When the assistance device is motorized, the patient can manipulate it remotely, for example using a remote control. In a hospital environment, a member of the medical profession can manually bring the device closer to the patient.
  • the approach can be entirely triggered and guided by the device itself if it comprises a system for detecting and/or locating the patient and an autonomous guidance system.
  • the device is not motorized and the patient is alone, he must be able to move on the ground to the assistance device which will allow him to get up.
  • the method includes a step of lowering the seat until it comes into contact with the ground so as to allow the patient to sit there.
  • a seat replacement step can be provided so as to equip the assistance device with a flexible and thin seat as described above, which is adequate in such a situation.
  • the seat can be replaced when raising the patient, either by the patient himself or by a third party.
  • the replacement of the seat can be provided in advance, for example when the assistance device is pre-configured for such use.
  • the method includes a patient support step.
  • the patient can sit on the seat directly, either alone or with the help of a third person so that they can be lifted using the assistance device.
  • the seat can be detached from the assistance device and placed under the patient, either by himself or with the help of a third person.
  • a step of reconnecting the seat with the device must be planned before raising the patient. This reconnection step requires bringing the assistance device closer so as to allow the seat to be placed on the assistance device again without moving the patient.
  • the method includes a subsequent step of raising the patient.
  • This step involves raising the seat using the motorized system described above to an adequate height to allow the patient to straighten up.
  • Moving the patient includes the step of placing the seat at a sufficient height so that the patient's feet do not hinder the movement of the assistance device once it is installed on it.
  • the displacement method can include the additional step of replacing the seat so as to equip the assistance device with a rigid seat, more appropriate than a flexible seat.
  • the flexible seat can be replaced by a rigid seat as described above, or else by an independent seat provided with feet. If necessary, the weight of the patient can be determined when he is installed on the seat, thanks to the pressure sensors described above.
  • the method for moving the patient may include a step of installing a footrest, either just before moving the patient, or during a prior step of pre-configuring the assistance device for this particular use.
  • the displacement can be carried out by a third person. Alternatively, if the assistance device is motorized, the movement can be performed completely independently.
  • This description also covers a method for transferring a patient with low autonomy, from a first support to a second support, by means of the assistance device described here.
  • the first and second supports include any element on which a patient can be installed, such as a bed, an armchair, a sofa, a vehicle interior or any other similar equipment.
  • the transfer includes a step of adjusting the height of the seat of the assistance device, either by the patient or by a third person, so as to facilitate his passage from the first support to the seat.
  • the seat can be placed at the same height as the first support, for example.
  • the transfer method can include the additional step of replacing the seat so as to equip the assistance device with a rigid seat, more appropriate than a flexible seat.
  • the transfer method comprises a step for receiving the patient on the seat from the first support and a step for installing the patient from the seat to the second support. Transferring the patient may of course include moving the patient as described above.

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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)
  • Rehabilitation Tools (AREA)
  • Invalid Beds And Related Equipment (AREA)
EP21188033.1A 2020-07-31 2021-07-27 Hilfsvorrichtung für personen mit eingeschränkter mobilität Active EP3944847B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH00962/20A CH717704A1 (fr) 2020-07-31 2020-07-31 Dispositif d'aide aux personnes à mobilité réduite.

Publications (2)

Publication Number Publication Date
EP3944847A1 true EP3944847A1 (de) 2022-02-02
EP3944847B1 EP3944847B1 (de) 2024-01-31

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EP (1) EP3944847B1 (de)
CH (1) CH717704A1 (de)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2127981A (en) * 1982-09-29 1984-04-18 James Ind Ltd Invalid hoists
GB2344579A (en) 1998-12-10 2000-06-14 Ronald Peter Best Invalid lifting device
US20040189071A1 (en) * 2001-07-11 2004-09-30 Komura Corporation Elevation chair
US20070067905A1 (en) * 2005-09-28 2007-03-29 Wilder William A Patient transport apparatus
US20120023661A1 (en) * 2010-07-30 2012-02-02 Toyota Motor Engineering & Manufacturing North America, Inc. Physical assistive robotic devices and systems
US20120104818A1 (en) 2010-04-30 2012-05-03 Dennis Kimble Morris Portable, Powered Chair Lift
GB2492837A (en) 2011-07-14 2013-01-16 Paul Onslow-Cole Portable apparatus for lifting a patient from the ground to a seated position
US20150035333A1 (en) 2013-08-02 2015-02-05 Robert Schy Apparatus for lifting persons
FR3086168A3 (fr) 2018-09-25 2020-03-27 Vassilli Srl Mini-élévateur de voyage pour personnes handicapées

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7611203B1 (en) * 2007-07-27 2009-11-03 Roberts Cameron B Patient chair lift

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2127981A (en) * 1982-09-29 1984-04-18 James Ind Ltd Invalid hoists
GB2344579A (en) 1998-12-10 2000-06-14 Ronald Peter Best Invalid lifting device
US20040189071A1 (en) * 2001-07-11 2004-09-30 Komura Corporation Elevation chair
US20070067905A1 (en) * 2005-09-28 2007-03-29 Wilder William A Patient transport apparatus
US20120104818A1 (en) 2010-04-30 2012-05-03 Dennis Kimble Morris Portable, Powered Chair Lift
US20120023661A1 (en) * 2010-07-30 2012-02-02 Toyota Motor Engineering & Manufacturing North America, Inc. Physical assistive robotic devices and systems
GB2492837A (en) 2011-07-14 2013-01-16 Paul Onslow-Cole Portable apparatus for lifting a patient from the ground to a seated position
US20150035333A1 (en) 2013-08-02 2015-02-05 Robert Schy Apparatus for lifting persons
FR3086168A3 (fr) 2018-09-25 2020-03-27 Vassilli Srl Mini-élévateur de voyage pour personnes handicapées

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CH717704A1 (fr) 2022-01-31
EP3944847B1 (de) 2024-01-31

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