EP2722028A1 - Self-propelled wheelchair for a disabled person - Google Patents

Self-propelled wheelchair for a disabled person Download PDF

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Publication number
EP2722028A1
EP2722028A1 EP12290282.8A EP12290282A EP2722028A1 EP 2722028 A1 EP2722028 A1 EP 2722028A1 EP 12290282 A EP12290282 A EP 12290282A EP 2722028 A1 EP2722028 A1 EP 2722028A1
Authority
EP
European Patent Office
Prior art keywords
tubes
verticalization
base
cylinder
carrier frame
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Withdrawn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
EP12290282.8A
Other languages
English (en)
French (fr)
Inventor
Bruno Rolland
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to EP12290282.8A priority Critical patent/EP2722028A1/de
Publication of EP2722028A1 publication Critical patent/EP2722028A1/de
Withdrawn legal-status Critical Current

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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
    • A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
    • A61G5/04—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven
    • A61G5/041—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven having a specific drive-type
    • A61G5/045—Rear wheel drive
    • 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
    • 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
    • A61G2200/00—Information related to the kind of patient or his position
    • A61G2200/50—Information related to the kind of patient or his position the patient is supported by a specific part of the body
    • A61G2200/52—Underarm

Definitions

  • the present invention relates to equipment for persons with paraplegic and quadriplegic disabilities. It relates, in particular, to those allowing the verticalization of the patient who remains virtually constantly sitting or lying.
  • the verticalization can be instantaneous, slow or "fast”, or slow or delayed in stages of waiting and this, especially for cardiovascular reasons.
  • Wheelchair equipment shall be designed to minimize the center of gravity to minimize translational movement when moving from sitting to standing. This verticalization operation can be carried out during the period of movement of the chair, or vice versa, that is to say go from standing to sitting during the period of movement of the chair.
  • the verticalization must be able to be programmed in time with predetermined sequences
  • the elements of the chair must be able to adapt to the morphology of the patient.
  • the footprint must remain that of conventional wheelchairs.
  • the chair must be powered from two batteries autonomy and suitable longevity, one taking over the other by electronic or electromechanical means in case of failure or lack of autonomy of one of them.
  • the cost price criterion must be the unavoidable imperative to allow a broad accessibility to the applicant as well as a financial relief for social services.
  • the verticalization is obtained by manual tilting, which requires a significant effort of the patient, including abdominals. It does not allow the elderly, hemiplegic and quadriplegic disabled verticalization. It does not allow, in addition, an autonomous movement. Little reimbursed by the social services, it remains financially expensive for the users, even useless.
  • the verticalization is obtained electrically with however the need for intervention by a third party for the positioning of care under the shins and then strapping the pelvis and the trunk of the user.
  • a third party for the positioning of care under the shins and then strapping the pelvis and the trunk of the user.
  • no disabled person finds the motivation to verticalize harmoniously as necessary.
  • This type of standing chair remains expensive and is not used as far as possible, since not secure, unsightly or even degrading, having regard to being strapped, harnessed.
  • the invention proposes a lightweight, ergonomic and secure self-propelled lifting chair for any major handicapped person, including a concept of dismantling and reassembly for its transport so that the user does not lose all the advantages of verticalization during these personal trips in places other than that of his home.
  • the armchair according to the figure 1 is first of all characteristic in that it can ensure a constant base for the autonomous movement of the major handicapped person who is installed there, and this, in three positions, sitting, standing and relaxing. In addition, it allows a perfectly secure automated support when said person is verticalized.
  • the hidden vision of the two left and right triangles 30d, 30g, 31d 31g, 45, 46, 49 and 50 finds its appearance in the exposed configuration through figures 1 , 5 , 8, 9, 10 , 13, 14 and 15 .
  • junctions 32, 32d and 32g are shaped and interconnected through the square tubes of junctions 32, 32d and 32g and fulfill two distinct functions.
  • the hollow tubular chassis 13 carrying the assembly consists of six hollow square tubes 45, 46, 47, 48, 49 and 50 parallel to each other and connected together by two cross beams 71 and 72 as shown by the figures 6 and 8 .
  • This has the consequence of obtaining a lightness relative to the electric autonomy for the displacement, a mechanical resistance associated to the measurement of the need, finally an elasticity of deformation related to the geometrical tolerance of certain grounds without threatening the security of the handicapped person .
  • the hollow tubular chassis carrying the assembly exposed on the Figures 6 and 7 four-wheel drive including two rear-wheel drive coupled to their electric gearmotor 23d and 23 g. It carries the axial sliding plate 17 allowing ergonomic attachment to the base of the cylinder 24 verticalization and the mechanism of the relaxation cylinder 26 on its inner tubes 47 and 48.
  • the patient is seated normally according to this position, the "stretchers" equipped with their anti-dropping mechanism 35-36 and 33-34 are lowered and recessed inside the backrest 61, the verticalizing jack 24 is resting.
  • the shin supports are in the open position to receive the legs of the disabled person whose feet rest on the footrests 26d and 26g adjustable more or less 5 ° tilt longitudinally to position the body of the user in a perfect verticality without distortion of the skeleton during the period and at the end of the course of the verticalization, and this, during all the duration of verticalization.
  • the patient can be seated by action on the manual control 29 which sends analog or digital electrical information gear motor 21 and 22 for the purpose of moving.
  • This same information can be provided by a voice command indicating the direction to take in the case of a major disability.
  • the patient himself causes the actual verticalization operation acting on the appropriate control of the housing 29 or through the voice command.
  • the patient will be raised from the immediate care located at the level of the gluteal muscles via the seat 60, his feet naturally taking place on the footrests 26 and 27 without sliding possible due to the secure management of the shins, during the first automation cycle.
  • the perfect correlation of this step allows the verticalization of the disabled person's body without being strapped.
  • the end of the verticalization cycle is detected by lack of electric current via reversing micro-switches sold in the industrial trade at the end of the cylinder stroke.
  • the user's positioning is in the immediate vicinity equivalent to a value less than or equal to 5 ° with respect to the center of gravity as it is exposed on the figure 2 , for example.
  • the de-verticalization position is in the opposite direction so that the patient is in the initial sitting position, the "stretchers" 35-36 and their common anti-fall end 33-34 are fully retracted into position seated inside the backrest 61 correlatively with the opening of the mechanisms of management of the shins, which allows a necessary comfort for the user seated again.
  • this targeted mode of operation can also be accomplished under the same conditions of safety when the patient moves forward, at a slow speed of movement.
  • the carrier structure consists of a double right and left deformable parallelogram provides the patient the opportunity to relax.
  • the invention therefore proposes, in a second step, an adaptation of the chair as previously described using a relaxation device.
  • the patient in the seated position directs the manual control 29 to the relaxation function and / or sends an electrical command by voice command to the target geared motor whose base is fixed to the rear ends of the tubes 47 and 48 of the tubular frame carrying the assembly, which has the effect of implementing a slow backward sliding and Regular bases 18d and 18g on their carrier 30d and 30g.
  • This sliding acts on the entire bearing structure intended for the purpose of producing the inclination of the backrest 61 favorable to relaxation as demonstrated by the figure 3 .
  • the mechanical connection of the plate 17 is provided around the tubes of the carrier frame of the assembly 47 and 48.
  • the gear motor 26 actuated allows the rotation of the threaded rod as indicated above. Said threaded rod originates from the gear motor 26 to complete its support in the center of its support 51.
  • Two pitch nuts and diameters equal to the threaded shank 27 enclose the protruding casings 18 of the plate 17 and allow the target movement, which has the effect of causing a linear thrust from the axis where the verticalization cylinder originates which, therefore, is used as a lever via its casing 90 in the form of T pivoting on its axis around its own base X.
  • the sitting position is again in the opposite direction so that the patient is in said position.
  • the patient can adapt his degree of inclination at will.
  • the armpit undercut mechanism (35, 36) has inside its front end flanks an articulated finger (33, 34) designed for ergonomic management delicately sliding between the trunk and the arms under the armpits of the upper arm. user ending his secure race on the front of the shoulders supporting said shoulders, thus perfectly encompassed, within the mechanical assemblies (35, 36) (33, 34) to the backrest (61) so that the body the user is linked and secured to the undercarriage without the need for strapping and safety.
  • This is made possible by two primary axial rotation tubes, one male (65), the other female (64) associated with each other by the mass constituted by the lever arms (35, 36) towards two secondary axial rotation tubes, one male (63), the other female (62).
  • the secure management of the shins includes a translational axis (96, 97) mu during a rotation of a quarter of a turn on itself by step thanks to the sheathed traction cable (87, 88) anchored on the pulley (9d , 9g) passing through the guide (80) originating on the stops (101, 102) allowing the corollary propulsion of said translation axis upwards until secure locking.
  • the unlocking is established in the opposite direction when returning to the sitting position when the sheathed traction cables (87, 88) have no more grip on the pulleys (9d, 9g).
  • a standard worm screw of the industrial trade placed instead of the translation axis (96, 97) can be considered, in order to simplify production moves, or even simplify this set.
  • the separation of the arbitrary triangles is obtained by dissociation of the fast nut type (305) around its threaded head axis (140), which has the effect of separating the left and right sides of their junction housings (32, 32b, 32g) in view of the respective positioning of the side (30g) on its base (50) as well as on the side (31g) on its base (49) and on the side (31d) on its base (46) as well as on the side (31d). 30d) on its base (45), said sides being bonded to said bases by said hinges above riveted on the correspondences of one vis-à-vis the other.
  • the arrangement of these elements being such that four fast nuts type (305) allow the easy and fast process of separation and storage of the standalone.
  • the fourth nut type (305) being located at the base of the cylinder (16) to the sliding plate (17).
  • the chair has the possibility to be mounted as a kit.
  • the chassis carrier of the set is separable into three parts upon delivery.
  • Such tubes (49, 50), secured to the sides (30g, 31g), folded vis-à-vis can be delivered together with their geared motor and their respective front and rear wheels.
  • tubes (47, 48) can be delivered jointly, mechanically associated with the sliding plate (17) provided with its "accessories" (18, 25, 51, 52).
  • Such tubes (45, 46), integral with the sides (30d, 31d), folded vis-à-vis, can be delivered together with their geared motor and their respective wheels front and rear, all being assembled at home by the joining tubes (71, 72) using a quick nut type (305).
  • the control box (29) is placed at the disposal of the patient on the armrest, or in a conformation suitable for voice operation according to current computer means.

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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)
  • Rehabilitation Tools (AREA)
EP12290282.8A 2012-10-19 2012-10-19 Self-propelled wheelchair for a disabled person Withdrawn EP2722028A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12290282.8A EP2722028A1 (de) 2012-10-19 2012-10-19 Self-propelled wheelchair for a disabled person

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12290282.8A EP2722028A1 (de) 2012-10-19 2012-10-19 Self-propelled wheelchair for a disabled person

Publications (1)

Publication Number Publication Date
EP2722028A1 true EP2722028A1 (de) 2014-04-23

Family

ID=50288373

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12290282.8A Withdrawn EP2722028A1 (de) 2012-10-19 2012-10-19 Self-propelled wheelchair for a disabled person

Country Status (1)

Country Link
EP (1) EP2722028A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ306563B6 (cs) * 2015-11-10 2017-03-08 Robotsystem, S.R.O. Robotické mobilní a modifikovatelné lůžko s vertikalizací
US20210338501A1 (en) * 2020-04-30 2021-11-04 Purdue Research Foundation Dynamically adjustable width wheelchair

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2590162A1 (fr) * 1985-11-19 1987-05-22 Rolland Bruno Fauteuil automoteur pour handicape comportant un dispositif de verticalisation automatique
EP0299839A1 (de) * 1987-07-16 1989-01-18 Bruno Rolland Selbstfahrender Stuhl für Behinderte mit einer automatischen Aufrichtvorrichtung
US5096008A (en) * 1990-09-24 1992-03-17 Jericho Corporation Stand-up wheelchair

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2590162A1 (fr) * 1985-11-19 1987-05-22 Rolland Bruno Fauteuil automoteur pour handicape comportant un dispositif de verticalisation automatique
EP0299839A1 (de) * 1987-07-16 1989-01-18 Bruno Rolland Selbstfahrender Stuhl für Behinderte mit einer automatischen Aufrichtvorrichtung
US5096008A (en) * 1990-09-24 1992-03-17 Jericho Corporation Stand-up wheelchair

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ306563B6 (cs) * 2015-11-10 2017-03-08 Robotsystem, S.R.O. Robotické mobilní a modifikovatelné lůžko s vertikalizací
US20210338501A1 (en) * 2020-04-30 2021-11-04 Purdue Research Foundation Dynamically adjustable width wheelchair

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