EP2666449B1 - Nursing bed provided with a proclive device, a sloping device, and an emergency mechanical control system - Google Patents

Nursing bed provided with a proclive device, a sloping device, and an emergency mechanical control system Download PDF

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Publication number
EP2666449B1
EP2666449B1 EP13168312.0A EP13168312A EP2666449B1 EP 2666449 B1 EP2666449 B1 EP 2666449B1 EP 13168312 A EP13168312 A EP 13168312A EP 2666449 B1 EP2666449 B1 EP 2666449B1
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EP
European Patent Office
Prior art keywords
head
bed
tilting device
pedal
coupling
Prior art date
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Application number
EP13168312.0A
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German (de)
French (fr)
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EP2666449A2 (en
EP2666449A3 (en
Inventor
David Le Roux
Olivier James
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Medicatlantic SA
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Medicatlantic SA
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Publication of EP2666449A2 publication Critical patent/EP2666449A2/en
Publication of EP2666449A3 publication Critical patent/EP2666449A3/en
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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
    • A61G7/002—Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame
    • A61G7/005—Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame tiltable around transverse horizontal axis, e.g. for Trendelenburg position
    • 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
    • A61G7/002—Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame
    • A61G7/012—Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame raising or lowering of the whole mattress frame
    • 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
    • A61G1/00—Stretchers
    • A61G1/04—Parts, details or accessories, e.g. head-, foot-, or like rests specially adapted for stretchers
    • A61G1/052—Struts, spars or legs
    • A61G1/056—Swivelling legs
    • A61G1/0565—Swivelling legs simultaneously folding, e.g. parallelogram structures
    • A61G1/0567—Swivelling legs simultaneously folding, e.g. parallelogram structures folding in x-shape
    • 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
    • A61G2203/70—General characteristics of devices with special adaptations, e.g. for safety or comfort
    • A61G2203/72—General characteristics of devices with special adaptations, e.g. for safety or comfort for collision prevention
    • A61G2203/726—General characteristics of devices with special adaptations, e.g. for safety or comfort for collision prevention for automatic deactivation, e.g. deactivation of actuators or motors
    • 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
    • A61G2210/00—Devices for specific treatment or diagnosis
    • A61G2210/30—Devices for specific treatment or diagnosis for intensive care

Definitions

  • the invention relates to the field of hospital beds, and more specifically to hospital beds incorporating a tilting function called proclive, for tilting the bed base so that the head of the patient is higher than the feet.
  • the proclive function makes it possible in particular to control the circulation of the physiological fluids of the patient.
  • this function makes it possible to promote the flow of pathological fluids (such as pus) that holds, on the contrary, a horizontal station, and to reduce the risks of regurgitation for patients with gastroesophageal reflux.
  • the proclive function is also appreciated by the patients for reasons of comfort, when combined with an articulation of the bed base it makes it possible to configure the bed in the manner of an armchair, facilitating so much the usual activities in sitting position (meals, reading, reception of visitors) than the transition from standing to sitting (or vice versa).
  • the proclive function is generally associated with a function of adjusting the height of the bed base, the combination of the two functions allowing the patient and the medical staff to cope with many situations dictated by both the comfort of the patient and its pathological state.
  • EP 2 210 577 a bed equipped with a proclive function, comprising a mechanism interposed between the bed base and a cross to allow the adjustment of the height of the bed base.
  • This bed gives satisfaction. However, it is not equipped with a safety function, called sloping, to tilt the bed base so that the patient's head is lower than his feet. This function is required especially in case of emergency, when the vital prognosis is engaged and requires to irrigate the brain in the moment.
  • a first goal is to maximize the chances of survival of patients in emergency situations, where the vital prognosis is engaged.
  • a second goal is to provide a medical bed with many settings (proclive, height) compatible with patient safety.
  • a third objective is to provide a medical bed equipped with a proclive function and offering a sloping position that can be obtained in a jiffy.
  • the sloping function can be activated mechanically (and therefore without electrical assistance) regardless of the initial orientation (horizontal or in proclive) of the bed base.
  • the disengagement of the proclive function makes it possible to conduct the operation quickly, to the benefit of the therapeutic safety of the patient.
  • This bed 1 comprises a frame 2 provided with wheels, and a bed frame 3 mounted on the frame 2 movably.
  • the bed 1 is not symmetrical. It has indeed a head side (indicated by the arrow T) and a foot side (indicated by the arrow P).
  • the bed base 3 is adjustable both in height and in relation to the frame 2, that is to say that the bed base 3 can be inclined so that the head side is higher, or conversely lower than the foot side.
  • the bed 1 is equipped, firstly, with a device 4 for adjusting the height of the bed base 3 relative to the frame 2.
  • This device 4 comprises a deformable cross 5 provided with a bar 6 head and a bar 7 foot mutually articulated around a central axis 8 .
  • the foot bar 7 has a lower end 9 by which the foot bar 7 is hinged, relative to a spar 10 of the frame 2, by means of a pivot 11.
  • the head bar 6 also has a lower end 12 through which the head bar 6 is hinged, relative to the spar 10, by means of a pivot 13 sliding in the form of a roller mounted at the lower end of the bar 6 head and cooperating with a slide 14 secured to the spar 10.
  • the head bar 6 is long, while the foot bar 7 is short, being interrupted in the vicinity of the central pivot axis 8 of the spider 5.
  • the height-adjusting device 4 comprises a motorized jack 15 interposed between the frame 2 and the spider 5 to open it (thus raising the bed base 3) or to close it (thus lowering the bed base 3) .
  • the motorized jack 15 is rotatably mounted, by a lower end, on a lower crossmember 16 of the frame 2 located on the foot side, and, by an upper end, on a median crossmember 17 mounted at the upper end. of the 7 foot bar.
  • the device 18 proclive further comprises an actuator 30 mounted on the bed frame 3 and controlling the movement of the compass 19 by means of a disengageable coupling 31 which can adopt an engaged configuration in which the compass 19 is coupled to the actuator 30, and a disengaged position in which the compass 19 is uncoupled from the actuator 30.
  • the actuator 30 comprises a motor 32 rotatably mounted relative to the frame 3, at a front end thereof, and the coupling 31 comprises a movable rod 33 interposed between the motor 32 and the compass 19.
  • the rod 33 can be mounted in translation in the manner of a cylinder provided with a piston mounted in a fluid-fed cylinder, or in the manner of a gear-engaging rack with a motor pinion.
  • a free end of the rod is rotatably mounted relative to the lower arm 29 of the fork 23 via a pivot 34 located at one end of the lower arm 29.
  • the passage in the disengaged position of the rod 33 may in particular be made by venting the cylinder (in the case of the cylinder) or by disconnecting the drive pinion (in the case of the rack).
  • the rod of the actuator 30 is threaded and mounted in rotation, such a rod being for example in helical engagement with a threaded nut mounted at the end of the lower arm 29 .
  • the passage in the disengaged position of the rod can be achieved by its freewheeling.
  • the compass 19 is articulated between a folded position in which the leg 20 and the leg 24 of the fork 23 are substantially collinear, the lower arm 29 projecting downwards, and an extended position in which the leg 20 and the leg 24 form an angle (for example being perpendicular, as illustrated).
  • the rod 33 is integral with the motor 32, which thus controls the movement of the compass 19 between its folded position and its deployed position, whereas in the disengaged position the rod 33 is freely movable relative to the engine 32, the compass 19 can then adopt any position between the folded position and the deployed position under an external mechanical action, as will be explained below.
  • the bed 1 is further equipped, on the foot side, with a sloping device 35 comprising a connecting rod 36 articulated, on the one hand, with respect to an upper end of the foot bar 7 via a pivot 37 , and secondly with respect to the bed base 3 via a pivot 38 sliding in the form of a roller secured to the connecting rod 36 and cooperating with a slide 39 secured to the bed base 3, foot side.
  • the connecting rod 36 is thus articulated with respect to the foot bar 7 between a low position in which the connecting rod 36 extends substantially co-linearly with the foot bar 7 , and a high position in which the connecting rod 36 is angularly offset by compared to the 7 foot bar of the headboard side.
  • the connecting rod 36 may be provided with an abutment end stop 40 which, in the low position, limits the angular displacement of the connecting rod 36 by being applied against a bearing surface 41 formed at the upper end. of the foot bar 7 , or on a mounting plate 42 of the connecting rod 36, integral with the foot bar 7 .
  • the device 35 sloping further comprises a brake 43 having a locking position in which it blocks the rotation of the connecting rod 36 with respect to the 7 foot bar (whatever their relative positions), and a release position wherein the brake 43 allows free rotation of the rod 36 relative to the bar 7 foot under an external mechanical action.
  • the brake 43 is in the form of a jack comprising a piston 44 rotatably mounted relative to an upper end of the connecting rod 36 and sliding in a cylinder 45 rotatably mounted on the median crosspiece 17.
  • This jack 43 comprises for example a vent valve having two positions, namely a closed position corresponding to the locking position of the jack (that is to say the brake) 43, in which the valve closes the cylinder 45 and thus blocks the movement of the piston 44 relative to the cylinder 45, and an open position, corresponding to the release position of the brake 43, in which the valve puts the cylinder 45 in the open air and thus allows the free movement of the piston 44 with respect to the cylinder 45.
  • the bed 1 is also equipped with an emergency control system 46 , which comprises a control pedal 47 (in this case on each side of the bed 1, foot side) and a mechanical transmission 48 connecting the pedal 47 of controls both the device 35 and device 18 Trendelenburg Trendelenburg.
  • an emergency control system 46 which comprises a control pedal 47 (in this case on each side of the bed 1, foot side) and a mechanical transmission 48 connecting the pedal 47 of controls both the device 35 and device 18 Trendelenburg Trendelenburg.
  • the pedal 47 is rotatably mounted relative to the frame 2, about an axis 49, against a return spring 50 which biases the pedal 47 to its inactive position.
  • a handle does not exclude a realization in the form of joystick operable by hand.
  • a handle can be mounted not on the frame 2, but directly on the bed base 3.
  • the transmission 48 is direct from the pedal 47 to the brake 43 of the inclined device 35 , and indirectly from the pedal 47 to the coupling 31 of the device 18 proclive, the transmission to the device 18 proclive operating via the device 35 declive.
  • transmission 48 comprises a set of cables having a primary cable 51 connecting the pedal 47 to the brake 43 of the sloping device 35, and a secondary cable 52 connecting the device 35 sloping to the coupling 31 of the device 18 Trendelenburg .
  • the emergency control system 46 comprises for example a lever 53 rotatably coupled to the connecting rod 36, and the secondary cable 52 connects the lever 53 to the coupling 31 of the device 18 proclive.
  • the lever 53 which is in the form of a metal strip folded at the right angle at its ends, is rotatably mounted about a central axis 54 integral with the bar 7 foot.
  • the lever 53 is slotted to allow the passage of the secondary cable 52 , one end 56 provided with a lug is housed in the folded angle of the lever 53.
  • the lever 53 forms a hook to which is fixed a return spring 58 which biases the lever 53 towards its active position ( figure 4 ).
  • the connecting rod 36 carries a stop 59 against which the lever 53 is applied under the action of the return spring 58 .
  • the pedal 47 In the absence of bias, the pedal 47 is in the inactive position (solid line on the figure 5 ) and exerts no traction on the primary cable 51.
  • the brake 43 is then in the locked position, the rod 36 being, in these conditions, fixed in rotation relative to the bar 7 foot. Normally, the rod 36 is in the low position, its limit stop 40 angular end of stroke being applied against the bearing surface 41 .
  • the coupling 31 is in its engaged position, allowing the control, via the actuator 30, of the deployment (or conversely of the folding) of the compass 19.
  • a support (including the foot, by a caregiver) on the pedal 47 places it in the active position (dashed on the figure 5 ).
  • the pedal 47 then exerts traction on the primary cable 51 and places the brake 43 (by opening the valve, in the example presented above) in the unlocked position.
  • the operator can manually raise the bed base 3 foot side.
  • This movement pivots the connecting rod 36 with respect to the foot bar 7 , which causes, under the action of the return spring 58 , the lever 53 initially in the inactive position towards its active position ( figure 7 ).
  • the lever 53 then exerts traction on the secondary cable 52 , which disengages from the beginning of the tilting of the connecting rod 36 the coupling 31 and thus cancels the possible proclive position, assuming that it was present when the The operator has activated the pedal 47.
  • the sloping device 35 may be provided with a return member 60 (such as a gas spring, as in the example shown), which requests the connecting rod 36 to its upper position.
  • the transmission 48 set of cable may include a branch box 61 to which are connected the primary cable 51 and the secondary cable 52 , and through which the cables 51, 52 are connected to the pedal 47 to allow simultaneous control of the brake 43 of the sloping device 35 and the coupling 31 of the device 18 proclive.
  • This branching box 61 comprises for example a housing 62 in which is slidably mounted a feeder 63 to which are fixed on the one hand the lower ends of the cables 51, 52, and on the other hand a section 64 of cable connected to the pedal 47 .
  • the operator releases the pedal 47.
  • the brake 43 of the device 35 declivity is then locked, and the coupling 31 of the device 35 proclive engaged.
  • the bed frame 3 then retains its position, and pressing the pedal 47 is necessary to cancel the sloping position and replace the bed frame 3 in a normal use position.
  • the bed 1 which has just been described has several advantages.
  • the bed frame 3 can be tilted in a jiffy to the sloping position, in which the bed frame 3 is lower head side than foot side.
  • This operation can be carried out manually, without electrical assistance and therefore even in the event of power failure or flattening of power supply batteries of the electrical systems.
  • the tilting towards the sloping position can be obtained regardless of the height of the bed base 3 , and even when it is in the proclive position, it is understood that the sloping function (and therefore the safety of the patient) is compatible with the comfort of the patient , induced by the other bed settings (height, proclive).

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  • Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Rehabilitation Therapy (AREA)
  • Invalid Beds And Related Equipment (AREA)

Description

L'invention a trait au domaine des lits médicalisés, et plus précisément aux lits médicalisés intégrant une fonction d'inclinaison dénommée proclive, permettant d'incliner le sommier de manière que la tête du patient soit plus élevée que les pieds.The invention relates to the field of hospital beds, and more specifically to hospital beds incorporating a tilting function called proclive, for tilting the bed base so that the head of the patient is higher than the feet.

La fonction proclive permet notamment de contrôler la circulation des fluides physiologiques du patient. En particulier, cette fonction permet de favoriser l'écoulement de fluides pathologiques (tel que pus) que retient, a contrario, une station horizontale, et de diminuer les risques de régurgitation pour les patients atteints de reflux gastro-oesophagien.The proclive function makes it possible in particular to control the circulation of the physiological fluids of the patient. In particular, this function makes it possible to promote the flow of pathological fluids (such as pus) that holds, on the contrary, a horizontal station, and to reduce the risks of regurgitation for patients with gastroesophageal reflux.

La fonction proclive est également appréciée des patients pour des raisons de confort, lorsque combinée à une articulation du sommier elle permet de configurer le lit à la manière d'un fauteuil, facilitant tant les activités courantes en station assise (repas, lecture, accueil de visiteurs) que le passage de la station debout à la station assise (ou réciproquement).The proclive function is also appreciated by the patients for reasons of comfort, when combined with an articulation of the bed base it makes it possible to configure the bed in the manner of an armchair, facilitating so much the usual activities in sitting position (meals, reading, reception of visitors) than the transition from standing to sitting (or vice versa).

La fonction proclive est généralement associée à une fonction de réglage de la hauteur du sommier, le cumul des deux fonctions permettant au patient et au personnel médical de faire face à de nombreuses situations dictées tant par le confort du patient que par son état pathologique.The proclive function is generally associated with a function of adjusting the height of the bed base, the combination of the two functions allowing the patient and the medical staff to cope with many situations dictated by both the comfort of the patient and its pathological state.

On connaît du document EP 2 210 577 (MEDICATLANTIC) un lit équipé d'une fonction proclive, comprenant un mécanisme interposé entre le sommier et un croisillon destiné à permettre le réglage de la hauteur du sommier.Document is known EP 2 210 577 (MEDICATLANTIC) a bed equipped with a proclive function, comprising a mechanism interposed between the bed base and a cross to allow the adjustment of the height of the bed base.

Ce lit donne satisfaction. Il n'est toutefois pas équipé d'une fonction de sécurité, dénommée déclive, permettant d'incliner le sommier de manière que la tête du patient soit plus basse que ses pieds. Cette fonction est requise notamment en cas d'urgence, lorsque le pronostic vital est engagé et nécessite d'irriguer le cerveau dans l'instant.This bed gives satisfaction. However, it is not equipped with a safety function, called sloping, to tilt the bed base so that the patient's head is lower than his feet. This function is required especially in case of emergency, when the vital prognosis is engaged and requires to irrigate the brain in the moment.

Il existe des lits équipés d'une telle fonction, qui peut être cumulée à la fonction proclive, cf. par ex. le brevet européen EP 0 494 551 (SSI MEDICAL SERVICES). Dans ce type de lit, les fonctions sont pilotées hydrauliquement, chaque fonction étant commandée par un vérin. Le vérin est alimenté en fluide issu d'une pompe commandée par un moteur électrique. Ce lit donne satisfaction tant que les réglages d'assiette ne doivent pas être effectués dans l'urgence. Ce lit présente toutefois un inconvénient majeur, en raison du pilotage électro-hydraulique des fonctions. De ce fait, la mise en position déclive est lente. Il en résulte un risque d'aggravation de l'état (voire de perte) du patient pendant la mise en déclive. Cette lenteur est d'autant plus problématique lorsqu'il est nécessaire de faire passer le lit de la position proclive directement à la position déclive, car le débattement angulaire est alors maximal.There are beds equipped with such a function, which can be cumulated with the proclive function, cf. eg. the European patent EP 0 494 551 (SSI MEDICAL SERVICES). In this type of bed, the functions are controlled hydraulically, each function being controlled by a jack. The cylinder is supplied with fluid from a pump controlled by an electric motor. This bed is satisfactory as the trim adjustments should not be made in an emergency. This bed however has a major drawback, due to the electro-hydraulic control of the functions. As a result, the setting in a sloping position is slow. This results in a risk of worsening the state (or even loss) of the patient during the setting down. This slowness is even more problematic when it is necessary to move the bed from the proclive position directly to the sloping position, because the angular movement is then maximum.

Un premier objectif est de maximiser les chances de survie des patients en situation d'urgence, où le pronostic vital est engagé.A first goal is to maximize the chances of survival of patients in emergency situations, where the vital prognosis is engaged.

Un deuxième objectif est de proposer un lit médicalisé offrant de nombreux réglages (proclive, hauteur) compatibles avec la sécurité du patient.A second goal is to provide a medical bed with many settings (proclive, height) compatible with patient safety.

Un troisième objectif est de proposer un lit médicalisé équipé d'une fonction proclive et offrant une position déclive pouvant être obtenue en un tournemain.A third objective is to provide a medical bed equipped with a proclive function and offering a sloping position that can be obtained in a jiffy.

A cet effet, il est proposé un lit médicalisé équipé d'un bâti et d'un sommier, ce lit étant en outre équipé :

  • d'un dispositif de réglage de la hauteur du sommier par rapport au bâti, ce dispositif comprenant un croisillon déformable muni d'une barre de tête et d'une barre de pied mutuellement articulées ;
  • d'un dispositif proclive comprenant :
    • un compas monté articulé entre la barre de tête et le sommier, entre une position repliée et une position déployée,
    • un actionneur commandant le mouvement du compas par l'intermédiaire d'un accouplement.
Dans ce lit, l'accouplement du dispositif proclive est débrayable et peut adopter une configuration embrayée dans laquelle le compas est accouplé à l'actionneur, et une position débrayée dans laquelle le compas est désaccouplé de l'actionneur, et le lit est en outre équipé :
  • d'un dispositif déclive comprenant :
    • une bielle montée articulée entre la barre de pied et le sommier entre une position basse et une position haute ;
    • un frein ayant une position de verrouillage dans laquelle il bloque la rotation de la bielle par rapport à la barre de pied, et une position de libération dans laquelle il permet la rotation de la bielle par rapport à la barre de pied,
  • d'un système de commande d'urgence, qui comprend une pédale de commande et une transmission mécanique reliant la pédale de commande au dispositif déclive et au dispositif proclive, la pédale de commande étant montée mobile entre :
    • une position inactive dans laquelle la pédale maintient le frein du dispositif déclive dans sa position de verrouillage et l'accouplement du dispositif proclive dans sa position embrayée,
    • une position active dans laquelle la pédale libère le frein du dispositif déclive et place l'accouplement du dispositif proclive dans sa position débrayée.
For this purpose, it is proposed a medical bed equipped with a frame and a bed frame, this bed being further equipped:
  • a device for adjusting the height of the bed base relative to the frame, this device comprising a deformable spider provided with a head bar and a foot bar mutually articulated;
  • a proclive device comprising:
    • a compass mounted articulated between the head bar and the bed base, between a folded position and an extended position,
    • an actuator controlling the movement of the compass through a coupling.
In this bed, the coupling of the proclive device is disengageable and can adopt an engaged configuration in which the compass is coupled to the actuator, and a disengaged position in which the compass is uncoupled from the actuator, and the bed is furthermore equipped:
  • a sloping device comprising:
    • a rod mounted articulated between the foot bar and the frame between a low position and a high position;
    • a brake having a locking position in which it blocks the rotation of the rod relative to the foot bar, and a release position in which it allows the rotation of the rod relative to the foot bar,
  • an emergency control system, which comprises a foot pedal and a mechanical transmission connecting the foot pedal to the sloping device and to the proclive device, the foot pedal being mounted movably between:
    • an inactive position in which the pedal holds the brake of the sloping device in its locking position and the coupling of the device proclive in its engaged position,
    • an active position in which the pedal releases the brake of the sloping device and places the coupling of the proclive device in its disengaged position.

Grâce à ce système de commande d'urgence, la fonction déclive peut être activée mécaniquement (et donc sans assistance électrique) quelle que soit l'orientation initiale (horizontale ou en proclive) du sommier. Le débrayage de la fonction proclive permet de conduire rapidement l'opération, au bénéfice de la sécurité thérapeutique du patient.Thanks to this emergency control system, the sloping function can be activated mechanically (and therefore without electrical assistance) regardless of the initial orientation (horizontal or in proclive) of the bed base. The disengagement of the proclive function makes it possible to conduct the operation quickly, to the benefit of the therapeutic safety of the patient.

Diverses caractéristiques supplémentaires peuvent être prévues, seules ou en combinaison :

  • le frein du dispositif déclive se présente sous forme d'un vérin comprenant un piston monté coulissant dans un cylindre, et une soupape ayant deux positions commandées par la pédale, à savoir une position fermée correspondant à la position de verrouillage du frein, dans laquelle la soupape obture le cylindre, et une position ouverte, correspondant à la position de libération, dans laquelle la soupape met le cylindre à l'air libre ;
  • l'actionneur comprend un moteur et l'accouplement comprend une tige mobile interposée entre le moteur et le compas ;
  • en position embrayée la tige est solidaire du moteur, tandis qu'en position débrayée la tige est librement mobile par rapport au moteur ;
  • selon un premier mode de réalisation, la transmission est directe de la pédale au frein du dispositif déclive, mais indirecte de la pédale à l'accouplement du dispositif proclive ;
  • dans ce cas, la transmission comprend un jeu de câbles ayant un câble primaire reliant la pédale au frein du dispositif déclive, et un câble secondaire reliant le dispositif déclive à l'accouplement du dispositif proclive ;
  • le système de commande d'urgence comprend un levier couplé en rotation à la bielle, et le câble secondaire relie le levier à l'accouplement du dispositif proclive, le levier étant mobile entre une position inactive dans laquelle il relâche le câble secondaire, permettant à l'accouplement d'adopter sa configuration embrayée, et une position active dans laquelle il exerce sur le câble secondaire une traction, plaçant l'accouplement dans sa configuration débrayée ;
  • le levier est monté en rotation autour d'un axe solidaire de la barre de pied, un ressort de rappel sollicite le levier vers sa position active, et la bielle porte une butée contre laquelle est appliquée le levier sous l'action du ressort de rappel ;
  • le dispositif déclive comprend un organe de rappel sollicitant la bielle vers sa position haute ;
  • selon un deuxième mode de réalisation, la transmission est directe de la pédale au dispositif déclive, et de la pédale au dispositif proclive ;
  • dans ce cas, la transmission comprend un jeu de câbles ayant un câble primaire reliant la pédale au frein du dispositif déclive et un câble secondaire reliant la pédale à l'accouplement du dispositif proclive.
Various additional features may be provided, alone or in combination:
  • the brake of the sloping device is in the form of a cylinder comprising a piston slidably mounted in a cylinder, and a valve having two positions controlled by the pedal, namely a closed position corresponding to the brake locking position, in which the valve closes the cylinder, and an open position, corresponding to the release position, in which the valve puts the cylinder in the open air;
  • the actuator comprises a motor and the coupling comprises a movable rod interposed between the motor and the compass;
  • in the engaged position the rod is integral with the engine, while in the disengaged position the rod is freely movable relative to the engine;
  • according to a first embodiment, the transmission is direct from the pedal to the brake of the sloping device, but indirectly from the pedal to the coupling of the proclive device;
  • in this case, the transmission comprises a set of cables having a primary cable connecting the brake pedal of the sloping device, and a secondary cable connecting the sloping device to the coupling of the proclive device;
  • the emergency control system comprises a lever coupled in rotation to the connecting rod, and the secondary cable connects the lever to the coupling of the proclive device, the lever being movable between an inactive position in which it releases the secondary cable, allowing the coupling adopting its engaged configuration, and an active position in which it exerts traction on the secondary cable, placing the coupling in its disengaged configuration;
  • the lever is rotatably mounted about an axis integral with the foot bar, a return spring urges the lever towards its active position, and the rod carries a stop against which the lever is applied under the action of the return spring ;
  • the sloping device comprises a return member biasing the rod to its upper position;
  • according to a second embodiment, the transmission is direct from the pedal to the sloping device, and the pedal to the device proclive;
  • in this case, the transmission comprises a set of cables having a primary cable connecting the pedal to the brake of the sloping device and a secondary cable connecting the pedal to the coupling of the proclive device.

D'autres objets et avantages de l'invention apparaîtront à la lumière de la description d'un mode de réalisation, faite ci-après en référence aux dessins annexés dans lesquels :

  • la figure 1 est une vue en perspective de dessus d'un lit médicalisé équipé d'un dispositif proclive, d'un dispositif déclive et d'un système de commande d'urgence, selon un premier mode de réalisation ;
  • la figure 2 est une vue en coupe latérale du lit de la figure 1, montré en position horizontale du sommier ;
  • la figure 3 est une vue similaire à la figure 2, montrant le lit en position proclive du sommier ;
  • la figure 4 est une vue de détail montrant partiellement le système de commande d'urgence, selon l'encart IV de la figure 3 ;
  • la figure 5 est une vue schématique montrant l'activation du système de commande d'urgence ;
  • la figure 6 est une vue similaire à la figure 2, montrant le lit en position déclive du sommier ;
  • la figure 7 est une vue similaire à la figure 4, selon l'encart VII de la figure 6 ;
  • la figure 8 est une vue similaire à la figure 3, montrant le lit en position proclive selon un deuxième mode de réalisation ;
  • la figure 9 est une vue similaire à la figure 5, pour la commande d'urgence du lit illustré sur la figure 8.
Other objects and advantages of the invention will become apparent in the light of the description of an embodiment, given hereinafter with reference to the accompanying drawings, in which:
  • the figure 1 is a perspective view from above of a hospital bed equipped with a proclive device, a sloping device and an emergency control system, according to a first embodiment;
  • the figure 2 is a side sectional view of the bed of the figure 1 , shown in horizontal position of the bed base;
  • the figure 3 is a view similar to the figure 2 , showing the bed in proclive position of the bed frame;
  • the figure 4 is a detail view showing partially the emergency control system, according to inset IV of the figure 3 ;
  • the figure 5 is a schematic view showing the activation of the emergency control system;
  • the figure 6 is a view similar to the figure 2 , showing the bed in a sloping position of the bed base;
  • the figure 7 is a view similar to the figure 4 , according to box VII of the figure 6 ;
  • the figure 8 is a view similar to the figure 3 showing the bed in a proclive position according to a second embodiment;
  • the figure 9 is a view similar to the figure 5 , for the emergency control of the bed shown on the figure 8 .

Sur la figure 1 est représenté un lit 1 médicalisé.On the figure 1 is shown a bed 1 medicalized.

Ce lit 1 comprend un bâti 2 muni de roues, et un sommier 3 monté sur le bâti 2 de manière mobile. Le lit 1 n'est pas symétrique. Il présente en effet un côté tête (indiqué par la flèche T) et un côté pied (indiqué par la flèche P). Le sommier 3 est réglable à la fois en hauteur et en assiette par rapport au bâti 2, c'est-à-dire que le sommier 3 peut être incliné de sorte que le côté tête soit plus haut, ou à l'inverse plus bas que le côté pied.This bed 1 comprises a frame 2 provided with wheels, and a bed frame 3 mounted on the frame 2 movably. The bed 1 is not symmetrical. It has indeed a head side (indicated by the arrow T) and a foot side (indicated by the arrow P). The bed base 3 is adjustable both in height and in relation to the frame 2, that is to say that the bed base 3 can be inclined so that the head side is higher, or conversely lower than the foot side.

A cet effet, le lit 1 est équipé, en premier lieu, d'un dispositif 4 de réglage de la hauteur du sommier 3 par rapport au bâti 2. Ce dispositif 4 comprend un croisillon 5 déformable muni d'une barre 6 de tête et d'une barre 7 de pied mutuellement articulées autour d'un axe 8 central. La barre 7 de pied présente une extrémité 9 inférieure par laquelle la barre 7 de pied est articulée, par rapport à un longeron 10 du bâti 2, au moyen d'un pivot 11. For this purpose, the bed 1 is equipped, firstly, with a device 4 for adjusting the height of the bed base 3 relative to the frame 2. This device 4 comprises a deformable cross 5 provided with a bar 6 head and a bar 7 foot mutually articulated around a central axis 8 . The foot bar 7 has a lower end 9 by which the foot bar 7 is hinged, relative to a spar 10 of the frame 2, by means of a pivot 11.

La barre 6 de tête présente également une extrémité 12 inférieure par laquelle la barre 6 de tête est articulée, par rapport au longeron 10, au moyen d'un pivot 13 glissant sous forme d'un galet monté à l'extrémité inférieure de la barre 6 de tête et coopérant avec une glissière 14 solidaire du longeron 10. The head bar 6 also has a lower end 12 through which the head bar 6 is hinged, relative to the spar 10, by means of a pivot 13 sliding in the form of a roller mounted at the lower end of the bar 6 head and cooperating with a slide 14 secured to the spar 10.

Comme cela est visible sur les figures, la barre 6 de tête est longue, tandis que la barre 7 de pied est courte, en étant interrompue au voisinage de l'axe 8 central d'articulation du croisillon 5. As is visible in the figures, the head bar 6 is long, while the foot bar 7 is short, being interrupted in the vicinity of the central pivot axis 8 of the spider 5.

Selon un exemple de réalisation illustré, le dispositif 4 de réglage en hauteur comprend un vérin 15 motorisé interposé entre le bâti 2 et le croisillon 5 pour ouvrir celui-ci (remontant ainsi le sommier 3) ou le fermer (baissant ainsi le sommier 3). Dans l'exemple illustré, le vérin 15 motorisé est monté en rotation, par une extrémité inférieure, sur une traverse 16 basse du bâti 2 située côté pied, et, par une extrémité supérieure, sur une traverse 17 médiane montée à l'extrémité supérieure de la barre 7 de pied.According to an exemplary embodiment illustrated, the height-adjusting device 4 comprises a motorized jack 15 interposed between the frame 2 and the spider 5 to open it (thus raising the bed base 3) or to close it (thus lowering the bed base 3) . In the illustrated example, the motorized jack 15 is rotatably mounted, by a lower end, on a lower crossmember 16 of the frame 2 located on the foot side, and, by an upper end, on a median crossmember 17 mounted at the upper end. of the 7 foot bar.

Coté tête, le lit 1 est équipé d'un dispositif 18 proclive comprenant un compas 19 muni :

  • d'une branche 20, sensiblement rectiligne, montée en rotation, par un pivot 21 inférieur, par rapport à une extrémité supérieure de la barre 6 de tête et, par un pivot 22 supérieur, par rapport au sommier 3,
  • d'une fourche 23 en Y ayant :
    • une jambe 24 par une extrémité de laquelle la fourche 23 est articulée, par rapport au sommier 3, au moyen d'un pivot 25 glissant sous forme d'un galet monté à une extrémité arrière de la jambe 24 et coopérant avec une glissière 26 solidaire du sommier 3,
    • un bras 27 supérieur par lequel la fourche 23 est articulée par rapport à la branche 20 autour d'un pivot 28 médian, et
    • un bras 29 inférieur formant un V avec le bras 27 supérieur.
On the head side, the bed 1 is equipped with a device 18 proclive comprising a compass 19 provided with:
  • a branch 20, substantially rectilinear, rotatably mounted by a lower pivot 21 with respect to an upper end of the head bar 6 and, by an upper pivot 22 relative to the bed base 3,
  • a Y fork 23 having:
    • a leg 24 at one end of which the fork 23 is articulated, relative to the bed frame 3, by means of a pivot 25 sliding in the form of a roller mounted at a rear end of the leg 24 and cooperating with a slide 26 secured of the box spring 3,
    • an upper arm 27 by which the fork 23 is hinged relative to the branch 20 around a median pivot 28 , and
    • a lower arm 29 forming a V with the upper arm 27 .

Le dispositif 18 proclive comprend en outre un actionneur 30 monté sur le sommier 3 et commandant le mouvement du compas 19 par l'intermédiaire d'un accouplement 31 débrayable pouvant adopter une configuration embrayée dans laquelle le compas 19 est accouplé à l'actionneur 30, et une position débrayée dans laquelle le compas 19 est désaccouplé de l'actionneur 30. The device 18 proclive further comprises an actuator 30 mounted on the bed frame 3 and controlling the movement of the compass 19 by means of a disengageable coupling 31 which can adopt an engaged configuration in which the compass 19 is coupled to the actuator 30, and a disengaged position in which the compass 19 is uncoupled from the actuator 30.

Selon un mode de réalisation, l'actionneur 30 comprend un moteur 32 monté en rotation par rapport au sommier 3, à une extrémité avant de celui-ci, et l'accouplement 31 comprend une tige 33 mobile interposée entre le moteur 32 et le compas 19. According to one embodiment, the actuator 30 comprises a motor 32 rotatably mounted relative to the frame 3, at a front end thereof, and the coupling 31 comprises a movable rod 33 interposed between the motor 32 and the compass 19.

Comme dans l'exemple illustré, la tige 33 peut être montée en translation à la manière d'un vérin muni d'un piston monté dans un cylindre alimenté en fluide, ou à la manière d'une crémaillère en prise d'engrenage avec un pignon moteur. Une extrémité libre de la tige est montée en rotation par rapport au bras 29 inférieur de la fourche 23 par l'intermédiaire d'un pivot 34 situé à une extrémité du bras inférieur 29. Le passage en position débrayée de la tige 33 peut notamment être réalisé par mise à l'air du cylindre (dans le cas du vérin) ou par désolidarisation du pignon moteur (dans le cas de la crémaillère).As in the illustrated example, the rod 33 can be mounted in translation in the manner of a cylinder provided with a piston mounted in a fluid-fed cylinder, or in the manner of a gear-engaging rack with a motor pinion. A free end of the rod is rotatably mounted relative to the lower arm 29 of the fork 23 via a pivot 34 located at one end of the lower arm 29. The passage in the disengaged position of the rod 33 may in particular be made by venting the cylinder (in the case of the cylinder) or by disconnecting the drive pinion (in the case of the rack).

En variante, la tige de l'actionneur 30 est filetée et montée en rotation, une telle tige étant par exemple en prise hélicoïdale avec une noix taraudée montée à l'extrémité du bras 29 inférieur. Dans ce cas, le passage en position débrayée de la tige peut être réalisé par sa mise en roue libre.Alternatively, the rod of the actuator 30 is threaded and mounted in rotation, such a rod being for example in helical engagement with a threaded nut mounted at the end of the lower arm 29 . In this case, the passage in the disengaged position of the rod can be achieved by its freewheeling.

Le compas 19 est articulé entre une position repliée dans laquelle la branche 20 et la jambe 24 de la fourche 23 sont sensiblement colinéaires, le bras 29 inférieur faisant saillie vers le bas, et une position déployée dans laquelle la branche 20 et la jambe 24 forment un angle (en étant par exemple perpendiculaires, comme illustré).The compass 19 is articulated between a folded position in which the leg 20 and the leg 24 of the fork 23 are substantially collinear, the lower arm 29 projecting downwards, and an extended position in which the leg 20 and the leg 24 form an angle (for example being perpendicular, as illustrated).

En configuration embrayée, la tige 33 est solidaire du moteur 32, qui commande ainsi le mouvement du compas 19 entre sa position repliée et sa position déployée, tandis qu'en position débrayée la tige 33 est librement mobile par rapport au moteur 32, le compas 19 pouvant alors adopter toute position entre la position repliée et la position déployée sous une action mécanique externe, comme cela sera expliqué ci-après.In the engaged configuration, the rod 33 is integral with the motor 32, which thus controls the movement of the compass 19 between its folded position and its deployed position, whereas in the disengaged position the rod 33 is freely movable relative to the engine 32, the compass 19 can then adopt any position between the folded position and the deployed position under an external mechanical action, as will be explained below.

Le lit 1 est en outre équipé, côté pied, d'un dispositif 35 déclive comprenant une bielle 36 montée articulée, d'une part, par rapport à une extrémité supérieure de la barre 7 de pied par l'intermédiaire d'un pivot 37, et d'autre part par rapport au sommier 3 par l'intermédiaire d'un pivot 38 glissant sous forme d'un galet solidaire de la bielle 36 et coopérant avec une glissière 39 solidaire du sommier 3, côté pied. La bielle 36 est ainsi articulée par rapport à la barre 7 de pied entre une position basse dans laquelle la bielle 36 s'étend de manière sensiblement colinéaire à la barre 7 de pied, et une position haute dans laquelle la bielle 36 est décalée angulairement par rapport à la barre 7 de pied du côté tête de lit.The bed 1 is further equipped, on the foot side, with a sloping device 35 comprising a connecting rod 36 articulated, on the one hand, with respect to an upper end of the foot bar 7 via a pivot 37 , and secondly with respect to the bed base 3 via a pivot 38 sliding in the form of a roller secured to the connecting rod 36 and cooperating with a slide 39 secured to the bed base 3, foot side. The connecting rod 36 is thus articulated with respect to the foot bar 7 between a low position in which the connecting rod 36 extends substantially co-linearly with the foot bar 7 , and a high position in which the connecting rod 36 is angularly offset by compared to the 7 foot bar of the headboard side.

Comme illustré, la bielle 36 peut être munie d'une butée 40 angulaire de fin de course qui, en position basse, vient limiter le débattement angulaire de la bielle 36 en étant appliquée contre une surface 41 d'appui formée à l'extrémité supérieure de la barre 7 de pied, ou sur une platine 42 de montage de la bielle 36, solidaire de la barre 7 de pied.As illustrated, the connecting rod 36 may be provided with an abutment end stop 40 which, in the low position, limits the angular displacement of the connecting rod 36 by being applied against a bearing surface 41 formed at the upper end. of the foot bar 7 , or on a mounting plate 42 of the connecting rod 36, integral with the foot bar 7 .

Le dispositif 35 déclive comprend en outre un frein 43 ayant une position de verrouillage dans laquelle il bloque la rotation de la bielle 36 par rapport à la barre 7 de pied (quelle que soit leur position relative), et une position de libération dans laquelle le frein 43 permet la libre rotation de la bielle 36 par rapport à la barre 7 de pied sous une action mécanique externe.The device 35 sloping further comprises a brake 43 having a locking position in which it blocks the rotation of the connecting rod 36 with respect to the 7 foot bar (whatever their relative positions), and a release position wherein the brake 43 allows free rotation of the rod 36 relative to the bar 7 foot under an external mechanical action.

Selon un mode particulier de réalisation, le frein 43 se présente sous forme d'un vérin comprenant un piston 44 monté en rotation par rapport à une extrémité supérieure de la bielle 36 et coulissant dans un cylindre 45 monté en rotation sur la traverse médiane 17. According to a particular embodiment, the brake 43 is in the form of a jack comprising a piston 44 rotatably mounted relative to an upper end of the connecting rod 36 and sliding in a cylinder 45 rotatably mounted on the median crosspiece 17.

Ce vérin 43 comprend par exemple une soupape de mise à l'air ayant deux positions, à savoir une position fermée correspondant à la position de verrouillage du vérin (c'est-à-dire du frein) 43, dans laquelle la soupape obture le cylindre 45 et bloque ainsi le mouvement du piston 44 par rapport au cylindre 45, et une position ouverte, correspondant à la position de libération du frein 43, dans laquelle la soupape met le cylindre 45 à l'air libre et permet ainsi le libre mouvement du piston 44 par rapport au cylindre 45. This jack 43 comprises for example a vent valve having two positions, namely a closed position corresponding to the locking position of the jack (that is to say the brake) 43, in which the valve closes the cylinder 45 and thus blocks the movement of the piston 44 relative to the cylinder 45, and an open position, corresponding to the release position of the brake 43, in which the valve puts the cylinder 45 in the open air and thus allows the free movement of the piston 44 with respect to the cylinder 45.

Le lit 1 est par ailleurs équipé d'un système 46 de commande d'urgence, qui comprend une pédale 47 de commande (en l'espèce de chaque côté du lit 1, côté pied) et une transmission 48 mécanique reliant la pédale 47 de commande à la fois au dispositif 35 déclive et au dispositif 18 proclive.The bed 1 is also equipped with an emergency control system 46 , which comprises a control pedal 47 (in this case on each side of the bed 1, foot side) and a mechanical transmission 48 connecting the pedal 47 of controls both the device 35 and device 18 Trendelenburg Trendelenburg.

On voit sur les dessins que, dans l'exemple illustré, la pédale 47 de commande est actionnable au pied. La pédale 47 est montée mobile (en translation ou, comme dans l'exemple illustré, en rotation) par rapport au bâti 2 entre :

  • une position inactive dans laquelle la pédale 47 maintient le frein 43 du dispositif 35 déclive dans sa position de verrouillage et l'accouplement 31 du dispositif 18 proclive dans sa position embrayée,
  • une position active dans laquelle la pédale 47 libère le frein 43 du dispositif 35 déclive et place l'accouplement 31 du dispositif 18 proclive dans sa position débrayée.
It can be seen from the drawings that, in the illustrated example, the pedal 47 of control is actuable foot. The pedal 47 is mounted movably (in translation or, as in the example shown, in rotation) relative to the frame 2 between:
  • an inactive position in which the pedal 47 holds the brake 43 of the sloping device 35 in its locking position and the coupling 31 of the device 18 proclives in its engaged position,
  • an active position in which the pedal 47 releases the brake 43 of the sloping device 35 and places the coupling 31 of the device 18 proclive in its disengaged position.

Dans un exemple de réalisation correspondant aux illustrations (cf. figures 5 et 9), la pédale 47 est montée en rotation par rapport au bâti 2, autour d'un axe 49, à l'encontre d'un ressort 50 de rappel qui sollicite la pédale 47 vers sa position inactive.In an exemplary embodiment corresponding to the illustrations (cf. figures 5 and 9 ), the pedal 47 is rotatably mounted relative to the frame 2, about an axis 49, against a return spring 50 which biases the pedal 47 to its inactive position.

Le terme « pédale » n'exclut pas une réalisation sous forme de manette actionnable à la main. Dans ce cas, une telle manette peut être montée non sur le bâti 2, mais directement sur le sommier 3. The term "pedal" does not exclude a realization in the form of joystick operable by hand. In this case, such a handle can be mounted not on the frame 2, but directly on the bed base 3.

Selon un premier mode de réalisation illustré sur les figures 1 à 7, la transmission 48 est directe de la pédale 47 au frein 43 du dispositif 35 déclive, et indirecte de la pédale 47 à l'accouplement 31 du dispositif 18 proclive, la transmission au dispositif 18 proclive s'opérant par l'intermédiaire du dispositif 35 déclive.According to a first embodiment illustrated on the Figures 1 to 7 , the transmission 48 is direct from the pedal 47 to the brake 43 of the inclined device 35 , and indirectly from the pedal 47 to the coupling 31 of the device 18 proclive, the transmission to the device 18 proclive operating via the device 35 declive.

Dans l'exemple illustré, la transmission 48 comprend un jeu de câbles ayant un câble 51 primaire reliant la pédale 47 au frein 43 du dispositif 35 déclive, et un câble 52 secondaire reliant le dispositif 35 déclive à l'accouplement 31 du dispositif 18 proclive.In the example shown, transmission 48 comprises a set of cables having a primary cable 51 connecting the pedal 47 to the brake 43 of the sloping device 35, and a secondary cable 52 connecting the device 35 sloping to the coupling 31 of the device 18 Trendelenburg .

Plus précisément, et comme illustré, le système 46 de commande d'urgence comprend par exemple un levier 53 couplé en rotation à la bielle 36, et le câble 52 secondaire relie ce levier 53 à l'accouplement 31 du dispositif 18 proclive.More specifically, and as illustrated, the emergency control system 46 comprises for example a lever 53 rotatably coupled to the connecting rod 36, and the secondary cable 52 connects the lever 53 to the coupling 31 of the device 18 proclive.

Le levier 53 est monté mobile par rapport à la bielle 36 entre :

  • une position inactive dans le levier 53 relâche le câble 52 secondaire, permettant à l'accouplement d'adopter sa configuration embrayée, et
  • une position active dans laquelle le levier 53 exerce sur le câble 52 secondaire une traction, plaçant l'accouplement 31 dans sa configuration débrayée.
The lever 53 is mounted movably relative to the connecting rod 36 between:
  • an inactive position in the lever 53 releases the secondary cable 52 , allowing the coupling to adopt its engaged configuration, and
  • an active position in which the lever 53 exerts traction on the secondary cable 52 , placing the coupling 31 in its disengaged configuration.

Dans l'exemple illustré, le levier 53, qui se présente sous forme d'une lamelle métallique repliée à l'équerre à ses extrémités, est monté en rotation autour d'un axe 54 central solidaire de la barre 7 de pied.In the illustrated example, the lever 53, which is in the form of a metal strip folded at the right angle at its ends, is rotatably mounted about a central axis 54 integral with the bar 7 foot.

A une extrémité 55 supérieure, le levier 53 est fendu pour permettre le passage du câble 52 secondaire, dont une extrémité 56 pourvue d'un ergot vient se loger dans le repli à l'équerre du levier 53. At an upper end 55 , the lever 53 is slotted to allow the passage of the secondary cable 52 , one end 56 provided with a lug is housed in the folded angle of the lever 53.

A une extrémité 57 inférieure, le levier 53 forme un crochet auquel est fixé un ressort 58 de rappel qui sollicite le levier 53 vers sa position active (figure 4).At a lower end 57 , the lever 53 forms a hook to which is fixed a return spring 58 which biases the lever 53 towards its active position ( figure 4 ).

En outre, comme illustré, la bielle 36 porte une butée 59 contre laquelle le levier 53 est appliqué sous l'action du ressort 58 de rappel.In addition, as illustrated, the connecting rod 36 carries a stop 59 against which the lever 53 is applied under the action of the return spring 58 .

En l'absence de sollicitation, la pédale 47 est en position inactive (en trait plein sur la figure 5) et n'exerce aucune traction sur le câble primaire 51. Le frein 43 est alors en position verrouillée, la bielle 36 étant, dans ces conditions, fixe en rotation par rapport à la barre 7 de pied. Normalement, la bielle 36 est en position basse, sa butée 40 angulaire de fin de course étant appliquée contre la surface 41 d'appui. L'accouplement 31 est quant à lui en position embrayée, permettant la commande, via l'actionneur 30, du déploiement (ou inversement du repliement) du compas 19. In the absence of bias, the pedal 47 is in the inactive position (solid line on the figure 5 ) and exerts no traction on the primary cable 51. The brake 43 is then in the locked position, the rod 36 being, in these conditions, fixed in rotation relative to the bar 7 foot. Normally, the rod 36 is in the low position, its limit stop 40 angular end of stroke being applied against the bearing surface 41 . The coupling 31 is in its engaged position, allowing the control, via the actuator 30, of the deployment (or conversely of the folding) of the compass 19.

Un appui (notamment du pied, par un aide soignant) sur la pédale 47 place celle-ci en position active (en pointillés sur la figure 5). La pédale 47 exerce alors une traction sur le câble 51 primaire et place le frein 43 (par ouverture de la soupape, dans l'exemple présenté ci-dessus) en position déverrouillée.A support (including the foot, by a caregiver) on the pedal 47 places it in the active position (dashed on the figure 5 ). The pedal 47 then exerts traction on the primary cable 51 and places the brake 43 (by opening the valve, in the example presented above) in the unlocked position.

Le passage du frein 43 en position déverrouillée libère la rotation de la bielle 36 par rapport à la barre 7 de pied. Toutefois, compte tenu de la présence de la butée 40 angulaire de fin de course, seul le mouvement de rotation de la bielle 36 vers la position haute est permis.The passage of the brake 43 in the unlocked position releases the rotation of the rod 36 relative to the bar 7 foot. However, given the presence of the limit stop 40 angular limit, only the rotational movement of the rod 36 to the upper position is allowed.

Dès lors, l'opérateur peut relever manuellement le sommier 3 côté pied. Ce mouvement fait pivoter la bielle 36 par rapport à la barre 7 de pied, ce qui entraîne, sous l'action du ressort 58 de rappel, le levier 53 initialement en position inactive vers sa position active (figure 7). Le levier 53 exerce alors une traction sur le câble 52 secondaire, ce qui débraye dès le début du basculement de la bielle 36 l'accouplement 31 et annule ainsi l'éventuelle position proclive, dans l'hypothèse où celle-ci était présente lorsque l'opérateur a activé la pédale 47. Afin d'assister l'opérateur, le dispositif 35 déclive peut être muni d'un organe 60 de rappel (tel qu'un ressort à gaz, comme dans l'exemple illustré), qui sollicite la bielle 36 vers sa position haute.Therefore, the operator can manually raise the bed base 3 foot side. This movement pivots the connecting rod 36 with respect to the foot bar 7 , which causes, under the action of the return spring 58 , the lever 53 initially in the inactive position towards its active position ( figure 7 ). The lever 53 then exerts traction on the secondary cable 52 , which disengages from the beginning of the tilting of the connecting rod 36 the coupling 31 and thus cancels the possible proclive position, assuming that it was present when the The operator has activated the pedal 47. In order to assist the operator, the sloping device 35 may be provided with a return member 60 (such as a gas spring, as in the example shown), which requests the connecting rod 36 to its upper position.

Le passage de l'accouplement 31 en position débrayée libère le compas 19 qui, compte tenu du poids du sommier 3 (et de son occupant) tend à retrouver sa position repliée depuis sa position déployée.The passage of the coupling 31 in the disengaged position releases the compass 19 which, taking into account the weight of the bed base 3 (and its occupant) tends to recover its folded position from its deployed position.

En somme, il suffit à l'opérateur de relever le sommier 3 côté pied pour le basculer en position déclive, dans laquelle le sommier 3 est plus bas côté tête que côté pied. L'annulation de la position proclive est induite par le relèvement progressif du sommier 3 côté pied, et le basculement concomitant du levier 53 vers sa position active comme expliqué ci-dessus. Cette opération de passage en position déclive, entièrement mécanique, peut être conduite en quelques secondes.In short, it is sufficient for the operator to raise the bed base 3 foot side to switch to a sloping position, in which the bed frame 3 is lower head side than foot side. The cancellation of the proclive position is induced by the gradual raising of the bed base 3 foot side, and the concomitant tilting of the lever 53 to its active position as explained above. This operation of passage in a fully mechanically sloping position can be conducted in a few seconds.

Une fois la position déclive atteinte, l'opérateur relâche la pédale 47. Le frein 43 du dispositif 35 déclive est alors verrouillé, tandis que l'accouplement 31 du dispositif 18 proclive demeure débrayé en raison de la position du levier 53. Le sommier 3 conserve alors sa position, et un appui sur la pédale 47 est nécessaire pour annuler la position déclive et replacer le sommier 3 dans une position d'utilisation normale où la fonction proclive sera à nouveau opérationnelle.Once the downward position is reached, the operator releases the pedal 47. The brake 43 of the declivel device 35 is then locked, while the coupling 31 of the device 18 proclive remains disengaged because of the position of the lever 53. The bed frame 3 then retains its position, and pressing the pedal 47 is necessary to cancel the sloping position and replace the bed frame 3 in a normal use position where the function proclive will be operational again.

Selon un deuxième mode de réalisation illustré sur les figures 8 et 9, la transmission 48 est directe non seulement de la pédale 47 au dispositif 35 déclive, mais également de la pédale 47 au dispositif 18 proclive. Plus précisément, selon un exemple de réalisation illustré, la transmission 48 comprend un jeu de câbles comprenant :

  • un câble 51 primaire reliant la pédale 47 au frein 43 du dispositif 35 déclive, et
  • un câble 52 secondaire reliant la pédale 47 à l'accouplement 31 du dispositif 18 proclive.
According to a second embodiment illustrated on the Figures 8 and 9 , the transmission 48 is direct not only from the pedal 47 to the declivel device 35 , but also from the pedal 47 to the device 18 proclive. More specifically, according to an exemplary embodiment illustrated, the transmission 48 comprises a set of cables comprising:
  • a primary cable 51 connecting the pedal 47 to the brake 43 of the sloping device 35 , and
  • a secondary cable 52 connecting the pedal 47 to the coupling 31 of the device 18 proclive.

Dans l'exemple illustré, le câble 51 primaire est fixé :

  • par une extrémité inférieure, à la pédale 47, par exemple au moyen d'un ergot solidaire de l'extrémité inférieure du câble 51 primaire et logé dans une fente ménagée dans une portion supérieure de la pédale qui forme bascule autour de son axe 49,
  • par une extrémité supérieure, au frein 43, et plus précisément, dans l'exemple cité ci-dessus, à la soupape de mise à l'air.
In the illustrated example, the primary cable 51 is fixed:
  • by a lower end, to the pedal 47, for example by means of a lug secured to the lower end of the primary cable 51 and housed in a slot formed in an upper portion of the pedal which forms flips around its axis 49,
  • by an upper end, the brake 43, and more specifically, in the example cited above, to the vent valve.

Le câble 52 secondaire est quant à lui fixé :

  • par une extrémité inférieure, à la pédale 47 à la manière du câble 51 primaire,
  • par une extrémité supérieure, à l'accouplement 31, et plus précisément, dans l'exemple présenté ci-dessus, à un poussoir (non représenté) commandant le passage de la tige 33 de sa position embrayée à sa position débrayée, et vice-versa.
The secondary cable 52 is fixed:
  • by a lower end, to the pedal 47 in the manner of the primary cable 51 ,
  • by an upper end, the coupling 31, and more specifically, in the example presented above, a pusher (not shown) controlling the passage of the rod 33 from its engaged position to its disengaged position, and vice- versa.

Pour simplifier la fabrication, la transmission 48 par jeu de câble peut inclure une boîte 61 de dérivation à laquelle sont raccordés le câble 51 primaire et le câble 52 secondaire, et par l'intermédiaire duquel les câbles 51, 52 sont reliés à la pédale 47 pour permettre une commande simultanée du frein 43 du dispositif 35 déclive et de l'accouplement 31 du dispositif 18 proclive. Cette boîte 61 de dérivation comprend par exemple un boîtier 62 dans lequel est montée coulissante une masselotte 63 auxquelles sont fixées d'une part les extrémités inférieures des câbles 51, 52, et d'autre part un tronçon 64 de câble relié à la pédale 47. To simplify manufacture, the transmission 48 set of cable may include a branch box 61 to which are connected the primary cable 51 and the secondary cable 52 , and through which the cables 51, 52 are connected to the pedal 47 to allow simultaneous control of the brake 43 of the sloping device 35 and the coupling 31 of the device 18 proclive. This branching box 61 comprises for example a housing 62 in which is slidably mounted a feeder 63 to which are fixed on the one hand the lower ends of the cables 51, 52, and on the other hand a section 64 of cable connected to the pedal 47 .

En l'absence de sollicitation, la pédale 47, sous l'effet de son ressort de rappel 50, est en position inactive et n'exerce aucune traction sur les câbles 51, 52. Le frein 43 est alors en position verrouillée, la bielle 36 étant, dans ces conditions, fixe en rotation par rapport à la barre 7 de pied. Normalement, la bielle 36 est en position basse, sa butée 40 angulaire de fin de course étant appliquée contre la surface 41 d'appui. L'accouplement 31 est quant à lui en position embrayée, permettant la commande, via l'actionneur 30, du déploiement (ou inversement du repliement) du compas 19. In the absence of bias, the pedal 47, under the effect of its return spring 50, is in the inactive position and exerts no traction on the cables 51, 52. The brake 43 is then in the locked position, the connecting rod 36 being, under these conditions, fixed in rotation relative to the bar 7 foot. Normally, the rod 36 is in the low position, its limit stop 40 angular end of stroke being applied against the bearing surface 41 . The coupling 31 is in its engaged position, allowing the control, via the actuator 30, of the deployment (or conversely of the folding) of the compass 19.

Un appui (notamment du pied, par un aide soignant) sur la pédale 47 place celle-ci en position active. La pédale 47 pivote autour de son axe 49 à l'encontre de son ressort 50 de rappel et exerce alors une traction sur les câbles 51, 52 (figure 9 ) par l'intermédiaire du tronçon 64 et de la masselotte 63, et place :

  • par l'intermédiaire du câble 51 primaire, le frein 43 (par ouverture de la soupape, dans l'exemple présenté ci-dessus) en position déverrouillée,
  • par l'intermédiaire du câble 52 secondaire, l'accouplement 31 en position débrayée.
A support (including the foot, by a caregiver) on the pedal 47 places it in the active position. The pedal 47 pivots about its axis 49 against its return spring 50 and then exerts traction on the cables 51, 52 ( figure 9 ) via the section 64 and the weight 63, and places:
  • by means of the primary cable 51 , the brake 43 (by opening the valve, in the example presented above) in the unlocked position,
  • through the secondary cable 52 , the coupling 31 in the disengaged position.

Le passage du frein 43 en position déverrouillée libère la rotation de la bielle 36 par rapport à la barre 7 de pied. Toutefois, compte tenu de la présence de la butée 40 angulaire de fin de course, seul le mouvement de rotation de la bielle 36 vers la position haute est permis.The passage of the brake 43 in the unlocked position releases the rotation of the rod 36 relative to the bar 7 foot. However, given the presence of the limit stop 40 angular limit, only the rotational movement of the rod 36 to the upper position is allowed.

Le passage de l'accouplement 31 en position débrayée libère le compas 19 qui, compte tenu du poids du sommier 3 (et de son occupant) tend à retrouver sa position repliée.The passage of the coupling 31 in the disengaged position releases the compass 19 which, given the weight of the bed base 3 (and its occupant) tends to return to its folded position.

De la sorte, lorsque le sommier 3 est initialement en position proclive (c'est-à-dire que le compas 19 est en position déployée), l'activation de la pédale 47 permet immédiatement d'annuler la fonction proclive, le sommier 3 basculant vers une position horizontale, et il suffit à l'opérateur de relever le sommier 3 côté pied pour le basculer en position déclive, dans laquelle le sommier 3 est plus bas côté tête que côté pied. Cette opération peut être conduite en quelques secondes.In this way, when the frame 3 is initially in the proclive position (that is to say that the compass 19 is in the deployed position), the activation of the pedal 47 immediately cancels the function proclive, the bed frame 3 tilting to a horizontal position, and it is sufficient for the operator to raise the bed base 3 foot side to switch to the downward position, in which the bed frame 3 is lower head side than foot side. This operation can be conducted in a few seconds.

Une fois la position déclive atteinte, l'opérateur relâche la pédale 47. Le frein 43 du dispositif 35 déclive est alors verrouillé, et l'accouplement 31 du dispositif 35 proclive embrayé. Le sommier 3 conserve alors sa position, et un appui sur la pédale 47 est nécessaire pour annuler la position déclive et replacer le sommier 3 dans une position d'utilisation normale.Once the declivity position reached, the operator releases the pedal 47. The brake 43 of the device 35 declivity is then locked, and the coupling 31 of the device 35 proclive engaged. The bed frame 3 then retains its position, and pressing the pedal 47 is necessary to cancel the sloping position and replace the bed frame 3 in a normal use position.

Le lit 1 qui vient d'être décrit présente plusieurs avantages.The bed 1 which has just been described has several advantages.

Premièrement, grâce au système 46 de commande d'urgence, le sommier 3 peut être basculé en un tournemain vers la position déclive, dans laquelle le sommier 3 est plus bas côté tête que côté pied.Firstly, with the emergency control system 46 , the bed frame 3 can be tilted in a jiffy to the sloping position, in which the bed frame 3 is lower head side than foot side.

Cette opération peut être conduite manuellement, sans assistance électrique et donc même en cas de coupure de courant ou de mise à plat de batteries d'alimentation des systèmes électriques.This operation can be carried out manually, without electrical assistance and therefore even in the event of power failure or flattening of power supply batteries of the electrical systems.

Il en résulte une meilleure sécurité thérapeutique du patient, dont les chances de survie sont maximisées en situation d'urgence lorsque le pronostic vital est engagé.This results in a better therapeutic safety of the patient, whose survival chances are maximized in emergency situations when the vital prognosis is engaged.

Le basculement vers la position déclive pouvant être obtenu quelle que soit la hauteur du sommier 3, et même lorsque celui-ci est en position proclive, on comprend que la fonction déclive (et donc la sécurité du patient) est compatible avec le confort du patient, induit par les autres réglages du lit (hauteur, proclive).The tilting towards the sloping position can be obtained regardless of the height of the bed base 3 , and even when it is in the proclive position, it is understood that the sloping function (and therefore the safety of the patient) is compatible with the comfort of the patient , induced by the other bed settings (height, proclive).

Claims (10)

  1. Medical bed (1) equipped with a frame (2) and with a deck (3), this bed (1) being further equipped:
    - with a device (4) for adjusting the height of the deck (3) with respect to the frame (2), this device (4) comprising a deformable cross structure (5) equipped with a head bar (6) and a foot bar (7) which are articulated with respect to one another;
    - with a head-up tilting device (18) comprising:
    - a linkage (19) mounted in an articulated manner between the head bar (6) and the deck (3), between a folded position and an extended position,
    - an actuator (30) controlling the movement of the linkage (19) via the intermediary of a coupling (31),
    this bed (1) being characterized in that coupling (31) of the head-up tilting device (18) can be disengaged and can adopt an engaged configuration in which the linkage (19) is coupled to the actuator (30), and a disengaged position in which the linkage (19) is decoupled from the actuator (30), and in that the bed (1) is also equipped:
    - with a head-down tilting device (35) comprising:
    - a connecting rod (36) mounted in an articulated manner between the foot bar (7) and the deck (3), between a low position and a high position;
    - a brake (43) having a locking position in which it prevents the connecting rod (36) from rotating with respect to the foot bar (7), and a release position in which it allows the connecting rod (36) to rotate with respect to the foot bar (7),
    - with an emergency control system (46) which comprises a control pedal (47) and a mechanical transmission (48) connecting the control pedal (47) to the head-down tilting device (35) and to the head-up tilting device (18), the control pedal (47) being mounted so as to be able to move between:
    - an inactive position in which the pedal (47) holds the brake (43) of the head-down tilting device (35) in its locking position and the coupling (31) of the head-up tilting device in its engaged position, and
    - an active position in which the pedal (47) releases the brake (43) of the head-down tilting device (35) and places the coupling (31) of the head-up tilting device (18) in its disengaged position.
  2. Bed (1) according to Claim 1, characterized in that the brake (43) of the head-down tilting device (35) takes the form of a ram comprising a piston (44) mounted in a sliding manner in a cylinder (45), and a valve having two positions controlled by the pedal (47), specifically a closed position corresponding to the locking position of the brake (43), in which the valve blocks off the cylinder (45), and an open position, corresponding to the release position of the brake (43), in which the valve connects the cylinder (45) to the open air.
  3. Bed (1) according to Claim 1 or Claim 2, characterized in that the actuator (30) comprises a motor (32) and the coupling (31) comprises a movable stem (33) which is interposed between the motor (32) and the linkage (19), and in that in the engaged position the stem (33) moves with the motor (32) whereas in the disengaged position the stem (33) is free to move relative to the motor (32).
  4. Bed (1) according to one of Claims 1 to 3, characterized in that the transmission (48) is direct from the pedal (47) to the brake (43) of the head-down tilting device (35), and indirect from the pedal (47) to the coupling (31) of the head-up tilting device (18).
  5. Bed (1) according to Claim 4, characterized in that the transmission (48) comprises a set of cables (51, 52) having a primary cable (51) connecting the pedal (47) to the brake (43) of the head-down tilting device (35), and a secondary cable (52) connecting the head-down tilting device (35) to the coupling (31) of the head-up tilting device (18).
  6. Bed (1) according to Claim 5, characterized in that the control system (46) comprises a lever (53) coupled in rotation with the connecting rod (36), and in that the secondary cable (52) connects the lever (53) to the coupling (31) of the head-up tilting device (18), the lever (53) being able to move between an inactive position in which it releases the secondary cable (52), allowing the coupling (31) to adopt its engaged position, and an active position in which it applies tension to the secondary cable (52), placing the coupling (31) in its disengaged position.
  7. Bed (1) according to Claim 6, characterized in that the lever (53) is mounted in rotation about a spindle (54) which is secured to the foot bar (7), in that a return spring (58) urges the lever (53) towards its active position, and in that the connecting rod (36) bears an endstop (59) against which the lever (53) is pressed by the return spring (58).
  8. Bed (1) according to one of Claims 4 to 6, characterized in that the head-down tilting device (35) comprises a return member (60) urging the connecting rod (36) towards its high position.
  9. Bed (1) according to one of Claims 1 to 3, characterized in that the transmission (48) is direct from the pedal (47) to the head-down tilting device (35), and from the pedal (47) to the head-up tilting device (18).
  10. Bed (1) according to Claim 9, characterized in that the transmission (48) comprises a set of cables (51, 52) having a primary cable (51) connecting the pedal (47) to the brake (43) of the head-down tilting device (35), and a secondary cable (52) connecting the pedal (47) to the coupling (31) of the head-up tilting device (18).
EP13168312.0A 2012-05-21 2013-05-17 Nursing bed provided with a proclive device, a sloping device, and an emergency mechanical control system Active EP2666449B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1254625A FR2990620B1 (en) 2012-05-21 2012-05-21 MEDICALIZED BED EQUIPPED WITH A PROCLIVE DEVICE, A DECLIVE DEVICE, AND A MECHANICAL EMERGENCY CONTROL SYSTEM

Publications (3)

Publication Number Publication Date
EP2666449A2 EP2666449A2 (en) 2013-11-27
EP2666449A3 EP2666449A3 (en) 2014-07-02
EP2666449B1 true EP2666449B1 (en) 2015-07-29

Family

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Application Number Title Priority Date Filing Date
EP13168312.0A Active EP2666449B1 (en) 2012-05-21 2013-05-17 Nursing bed provided with a proclive device, a sloping device, and an emergency mechanical control system

Country Status (3)

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EP (1) EP2666449B1 (en)
ES (1) ES2550810T3 (en)
FR (1) FR2990620B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI124826B (en) * 2013-03-11 2015-02-13 Lojer Oy patient Basis
FR3021210B1 (en) 2014-05-20 2016-06-10 Medicatlantic Sa MEDICALIZED BED HAVING A SAFE POSITION FOR TRANSVERSAL MOVEMENTS HEADACHE
FR3089677B1 (en) 2018-12-11 2020-12-04 Socomec Sa Secure power connection / disconnection system of a module in a high power modular uninterruptible power supply and associated installation.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1319593A (en) * 1969-05-29 1973-06-06 Ellison George Ltd Underframe for beds
DE2525596B2 (en) * 1975-06-09 1978-07-20 Stahl-Vogel Wilhelm Vogel, 6308 Butzbach Bed, in particular a hospital bed, with a mattress frame that is adjustable in height and inclination
US5074000A (en) 1991-01-11 1991-12-24 Ssi Medical Services, Inc. Apparatus for performing head and foot Trendelenburg therapy
DE4317208C1 (en) * 1993-05-22 1994-06-30 Arnold L & C Motor-adjusted hospital bed
DE20216647U1 (en) * 2002-10-29 2003-01-02 Kötter, Helmut, 32120 Hiddenhausen Hospital bed has powered scissor lift jack and manually-operated bed frame tilt mechanism
FR2941368B1 (en) 2009-01-27 2011-03-18 Medicatlantic Sa SOMMIER WITH PROCLIVE DEVICE FOR A BED

Also Published As

Publication number Publication date
ES2550810T3 (en) 2015-11-12
EP2666449A2 (en) 2013-11-27
FR2990620B1 (en) 2014-06-06
FR2990620A1 (en) 2013-11-22
EP2666449A3 (en) 2014-07-02

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