WO2005051277A1 - Self-propelled stretcher support suitable for use in the medical field - Google Patents

Self-propelled stretcher support suitable for use in the medical field Download PDF

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Publication number
WO2005051277A1
WO2005051277A1 PCT/ES2004/000129 ES2004000129W WO2005051277A1 WO 2005051277 A1 WO2005051277 A1 WO 2005051277A1 ES 2004000129 W ES2004000129 W ES 2004000129W WO 2005051277 A1 WO2005051277 A1 WO 2005051277A1
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WO
WIPO (PCT)
Prior art keywords
stretcher
automotive
medicalizable
patient
motor
Prior art date
Application number
PCT/ES2004/000129
Other languages
Spanish (es)
French (fr)
Inventor
Jesús María MORENO ZAMORA
Original Assignee
Medlog S.A.
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 Medlog S.A. filed Critical Medlog S.A.
Priority to EP04721552A priority Critical patent/EP1693035A1/en
Publication of WO2005051277A1 publication Critical patent/WO2005051277A1/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
    • A61G1/00—Stretchers
    • A61G1/02—Stretchers with wheels
    • A61G1/0293—Stretchers with wheels stretcher supports with wheels, e.g. used for stretchers without wheels
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G1/00—Stretchers
    • A61G1/02—Stretchers with wheels
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G1/00—Stretchers
    • A61G1/02—Stretchers with wheels
    • A61G1/0206—Stretchers with wheels characterised by the number of supporting wheels if stretcher is extended
    • A61G1/0212—2 pairs having wheels within a pair on the same position in longitudinal direction, e.g. on the same axis
    • 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
    • A61G1/02—Stretchers with wheels
    • A61G1/0237—Stretchers with wheels having at least one swivelling wheel, e.g. castors
    • 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
    • A61G1/02—Stretchers with wheels
    • A61G1/0275—Stretchers with wheels having driven wheels, e.g. motorised
    • 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
    • A61G1/042—Suspension means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G1/00—Stretchers
    • A61G1/06—Supports for stretchers, e.g. to be placed in or on vehicles
    • 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
    • A61G7/08—Apparatus for transporting beds

Definitions

  • the present invention relates to a system identified as "medicalizable automotive chairlift” for use in ambulances (hereafter referred to as PAM for short), which provides essential novelty features and important advantages over known means. and used for similar purposes in the current state of the art.
  • the invention proposes the development of a self-propelled mobile device and an associated set of anchors, so that it is fixed to the ground of the ambulance while it is in motion.
  • the purpose of the PAM is twofold: on the one hand, to serve as support and fixation for both the patient-stretcher and the various medical and instrumental equipment; on the other, allow the set consisting of the patient, stretcher and equipment can be mobilized by an external operator with safety, comfort and hardly any physical effort.
  • the mobility of the P £ M is based on the fact that it is provided with four wheels and a propellant element constituted by an electric motor coupled to a differential-differential mechanism and fed from built-in batteries; said motor can be driven at will, both in the direction of travel (forward or backward) and speed (greater or lesser) by means of conventional electrical switching elements.
  • the associated anchor set allows the PAM not to move from its parking position while the ambulance is in motion.
  • SUBSTITUTE SHEET (RULE 26)
  • the scope of the present invention is within the industry dedicated to the manufacture of auxiliary equipment for medical purposes, particularly devices and means intended to equip ambulances and the like, but without discarding their use in hospital settings.
  • the practical need to transport patients who require technical-health care en route or transport between different departments of large hospitals is generally known.
  • the ambulances that perform this type of service are equipped with a series of devices and equipment, normally located on the sides and roof of the vehicle - which provide the patient with various functions, such as monitoring of vital signs, defibrillation, assisted breathing with or without oxygen supply, aspiration, intravenous or intraarterial infusion of medications, etc.
  • the current state of the technique of transporting patients in ambulances generally consists in fixing a frame to the floor of the vehicle that serves as a base for the support and anchorage of the patient's stretcher and, at the same time, allows to locate this one at a height and inclination suitable for the treatment.
  • this frame occupies a central position in the sanitary compartment and lacks the capacity to house equipment other than the stretcher itself that it supports.
  • the maneuver of introducing and attaching the stretcher to the frame is not exempt from the risk of accidents or injuries as a result of material, imperfect or material failure.
  • SUBSTITUTE SHEET (RULE 26) Frequent physical effort that demands health personnel. In other cases, the use of special stretchers is used, although they do not require the installation of a fixed frame on the floor of the ambulance, they do not prevent the effort of dragging them by hand to the interior of the ambulance, nor do they have the ability to carry equipment doctors.
  • the aforementioned arrangement of elements implies the need to lay various cables and channels between the equipment and the patient, which makes it difficult for the movement of medical personnel around the latter in an already reduced cabin in itself and that usually travels at considerable speed.
  • the removal of the patient when the ambulance arrives at its destination implies, in many cases, the momentary interruption of the treatment or the need to transport by hand the equipment that until then was placed in their accommodation, provided that they can operate autonomously, What does not happen in all cases.
  • the present invention has been proposed as a fundamental objective, the development of a system capable not only of supporting the patient's stretcher, but also of carrying most of the necessary equipment to provide an intense and orderly and continuous attention, to mobilize the whole comfortably and effortlessly and, in short, to enable a more ergonomic and functional design of the interior of the ambulance care cell.
  • the main element of the PAM consists of a rectangular shaped frame and section constituted from a plurality of elements (metal profiles and support plate) that provide the necessary rigidity and resistance, and that incorporates a motor group, an electronic control device , preferably an electronic solid state device, and power batteries.
  • This frame moves
  • SUBSTITUTE SHEET (RULE 26) on four wheels, of which the two rear receive the movement from said motor group.
  • the latter's housing is mounted at its two ends on two support arms, each of which is fixed at its opposite end to an elastic suspension element in turn attached to the frame.
  • the other two wheels are located at the front, with rotating brackets and an elastomer bushing to absorb small shocks due to irregularities in the ground.
  • the support plate of the frame and jointly attached to the longitudinal profiles of the latter there are elements that provide support for a stretcher and that leave between the latter and the support plate an empty interior space intended to contain the various medical devices and allow the Easy access to them.
  • the design of the elements that support the stretcher provides that the latter can pivot on any of its ends - so that the inclination of the patient with respect to the horizontal plane is appropriate in those pathologies that require it - as well as being able to vary its height with respect to the ground, thus facilitating the work of health personnel and the transfer of the patient from the PAM to a hospital bed or vice versa.
  • a handle or handlebar consisting of a tubular piece with upward travel, to which the means of electric switching and motor speed control are attached and which preferably consist of "motorcycle handle” type devices, due to its easy and intuitive operation.
  • the propellant group provided for the drive of the assembly is constituted by a direct current electric motor coupled to a reduction group and a differential gear, all in the same housing. It is thus possible to drive the mobile unit at a low travel speed which, according to the preferred embodiment, is in the range of 3 to 5 km / h, and facilitate its rotation, even in very small spaces.
  • the set of anchors consists of two pieces, permanently attached to the floor of the vehicle and arranged longitudinally on it. One of them consists of a mechanism equipped with a safety bolt that automatically captures a steel pivot attached to the bottom of the PAM. The other is a top-guide that helps center and immobilize the unit in the ambulance cabin. This set of anchors prevents any displacement in the longitudinal, lateral and vertical direction of the PAM during vehicle driving.
  • FIG. 1 shows a perspective view of the medicalizable automotive stretcher device (PAM) constructed in accordance with the invention.
  • the device has in its upper part the fork pieces 2 which serve to house and anchor the transverse reinforcement bars of the stretcher.
  • the tilting forks 3 allow any of said bars to be held in a higher position with respect to the other, thus ensuring that the stretcher bends a certain predetermined angle of amplitude.
  • the plate or tray 4 equipment carrier that serves as a base of support common to medical instruments (not shown).
  • the lower part of the frame is formed by a rectangular structure 5, obtained from a plurality of profiles of different material, shape and section, on which the elastic suspension elements 6 of the motor assembly are mounted, as well as two front wheels 7 , each of which is mounted on a respective vertical axis of free rotation.
  • the forks that hold the latter incorporate an elastomeric bushing 8 designed to reduce or dampen the small shocks and vibrations that could be transmitted to the frame during the ride.
  • the housing 9 of the motor group is linked to the elastic suspension elements 6 by means of support arms (not appreciable in the Figure), while the rear wheels 10, larger in diameter than the front ones, are mounted on the ends of the motor-reducer-differential assembly.

Abstract

The invention relates to a self-propelled-type stretcher support which is designed to perform two functions, namely: (i) to support and hold a patient stretcher as well as the different medical instruments or devices required to attend to said patient; and (ii) to enable an external operator to move the assembly easily, conveniently and safely with little physical effort. The inventive stretcher support comprises a support frame having four wheels connected thereto, i.e. two front wheels which can rotate in relation to a respective vertical axis, and two rear wheels which are driven by an electric motor. In addition, the rear part of the stretcher support comprises two handles which are connected to a handlebar-shaped structure and which are equipped with means for connecting/disconnecting the motor power supply and for controlling the speed of same using a suitable electronic circuit.

Description

"PORTACAMILIAS AUTOMOTRIZ MEDICALIZAB E" "MEDICALIZAB E AUTOMOTIVE CARRIER"
Objeto de la Invención La presente invención se refiere a un sistema identificado como "portacamillas automotriz medicalizable" para su uso en ambulancias (citado en lo sucesivo como PAM por abreviar) , que aporta esenciales características de novedad e importantes ventajas con respecto a los medios conocidos y utilizados con fines similares en el estado actual de la técnica.Object of the Invention The present invention relates to a system identified as "medicalizable automotive chairlift" for use in ambulances (hereafter referred to as PAM for short), which provides essential novelty features and important advantages over known means. and used for similar purposes in the current state of the art.
De manera más concreta, la invención propone el desarrollo de un dispositivo móvil autopropulsado y de un juego de anclajes asociado, de manera que quede fijo al suelo de la ambulancia mientras ésta se encuentre en movimiento .More specifically, the invention proposes the development of a self-propelled mobile device and an associated set of anchors, so that it is fixed to the ground of the ambulance while it is in motion.
La finalidad del PAM es doble: por un lado, servir de apoyo y fijación tanto de la camilla porta-paciente como de los diversos equipos médicos e instrumental; por otro, permitir que el conjunto constituido por el paciente, camilla y equipos pueda ser movilizado por un operador externo con seguridad, comodidad y sin apenas esfuerzo físico.The purpose of the PAM is twofold: on the one hand, to serve as support and fixation for both the patient-stretcher and the various medical and instrumental equipment; on the other, allow the set consisting of the patient, stretcher and equipment can be mobilized by an external operator with safety, comfort and hardly any physical effort.
La movilidad del P£M se basa en que está dotado de cuatro ruedas y de un elemento propulsor constituido por un motor eléctrico acoplado a un mecanismo reductor-diferencial y alimentado desde baterías incorporadas; dicho motor puede ser accionado a voluntad, tanto en sentido de la marcha (hacia delante o hacia atrás) como en velocidad (mayor o menor) por medio de elementos convencionales de conmutación eléctrica.The mobility of the P £ M is based on the fact that it is provided with four wheels and a propellant element constituted by an electric motor coupled to a differential-differential mechanism and fed from built-in batteries; said motor can be driven at will, both in the direction of travel (forward or backward) and speed (greater or lesser) by means of conventional electrical switching elements.
Finalmente, el juego de anclajes asociado permite que el PAM no se mueva de su posición de estacionamiento mientras la ambulancia se encuentre en movimiento.Finally, the associated anchor set allows the PAM not to move from its parking position while the ambulance is in motion.
HOJA DE SUSTITUCIÓN (REGLA 26) El campo de aplicación de la presente invención se encuentra comprendido dentro de la industria dedicada a la fabricación de equipamiento auxiliar para fines médicos, particularmente dispositivos y medios destinados a equipar ambulancias y similares, pero sin descartar su uso en entornos intrahospitalarios.SUBSTITUTE SHEET (RULE 26) The scope of the present invention is within the industry dedicated to the manufacture of auxiliary equipment for medical purposes, particularly devices and means intended to equip ambulances and the like, but without discarding their use in hospital settings.
Antecedentes y Sumario de la Invención Se conoce en general la necesidad práctica de transporte de enfermos que precisan una asistencia técnico- sanitaria en ruta o bien de transporte entre diferentes dependencias de grandes hospitales. Las ambulancias que realizan este tipo de servicio están dotadas de una serie de aparatos y de equipos, localizados normalmente en los laterales y techo del vehículo - que proporcionan al paciente diversas funciones, tales como monitorización de constantes vitales, desfibrilación, respiración asistida con o sin aporte de oxigeno, aspiración, infusión intravenosa o intraarterial de medicamentos, etc.BACKGROUND AND SUMMARY OF THE INVENTION The practical need to transport patients who require technical-health care en route or transport between different departments of large hospitals is generally known. The ambulances that perform this type of service are equipped with a series of devices and equipment, normally located on the sides and roof of the vehicle - which provide the patient with various functions, such as monitoring of vital signs, defibrillation, assisted breathing with or without oxygen supply, aspiration, intravenous or intraarterial infusion of medications, etc.
Por otra parte, el estado actual de la técnica de transporte de pacientes en ambulancias consiste por lo general en fijar al suelo del vehículo un bastidor que sirve de base de sustentación y anclaje de la camilla del paciente y, al mismo tiempo, permite situar a éste a una altura e inclinación adecuadas para el tratamiento. Normalmente, este bastidor ocupa una posición central en el habitáculo sanitario y carece de la capacidad para alojar equipos distintos de la propia camilla a la que sirve de soporte. Por otra parte, la maniobra de introducir y acoplar la camilla al bastidor no está exenta del riesgo de accidentes o lesiones como consecuencia de fallos del material, impericia o elOn the other hand, the current state of the technique of transporting patients in ambulances generally consists in fixing a frame to the floor of the vehicle that serves as a base for the support and anchorage of the patient's stretcher and, at the same time, allows to locate this one at a height and inclination suitable for the treatment. Normally, this frame occupies a central position in the sanitary compartment and lacks the capacity to house equipment other than the stretcher itself that it supports. On the other hand, the maneuver of introducing and attaching the stretcher to the frame is not exempt from the risk of accidents or injuries as a result of material, imperfect or material failure.
HOJA DE SUSTITUCIÓN (REGLA 26) frecuente esfuerzo físico que demanda al personal sanitario. En otros casos se recurre al empleo de camillas especiales que si bien no requieren la instalación de un bastidor fijo al suelo de la ambulancia, no evitan el esfuerzo de arrastrarlas a mano hasta el interior de la misma, ni tampoco poseen la capacidad de portar equipos médicos.SUBSTITUTE SHEET (RULE 26) Frequent physical effort that demands health personnel. In other cases, the use of special stretchers is used, although they do not require the installation of a fixed frame on the floor of the ambulance, they do not prevent the effort of dragging them by hand to the interior of the ambulance, nor do they have the ability to carry equipment doctors.
La mencionada disposición de elementos implica la necesidad de tender cables y canalizaciones diversas entre los equipos y el paciente, lo que dificulta el movimiento del personal médico en torno a éste último en un habitáculo ya reducido de por si y que suele viajar a velocidad considerable. Además, la extracción del paciente cuando la ambulancia llega a su destino supone, en muchos casos, la interrupción momentánea del tratamiento o la necesidad de transportar a mano los equipos que hasta entonces estaban colocados en sus alojamientos, siempre que puedan funcionar de forma autónoma, lo que no ocurre en todo los casos. La presente invención se ha propuesto como objetivo fundamental, el desarrollo de un sistema capaz no sólo de sustentar la camilla del paciente, sino también de portar la mayor parte del equipamiento necesario para prestar una atención intensa de forma ordenada y continua, de movilizar el conjunto cómodamente y sin esfuerzo y, en definitiva, de posibilitar un diseño más ergonómico y funcional del interior de la célula asistencial de la ambulancia.The aforementioned arrangement of elements implies the need to lay various cables and channels between the equipment and the patient, which makes it difficult for the movement of medical personnel around the latter in an already reduced cabin in itself and that usually travels at considerable speed. In addition, the removal of the patient when the ambulance arrives at its destination implies, in many cases, the momentary interruption of the treatment or the need to transport by hand the equipment that until then was placed in their accommodation, provided that they can operate autonomously, What does not happen in all cases. The present invention has been proposed as a fundamental objective, the development of a system capable not only of supporting the patient's stretcher, but also of carrying most of the necessary equipment to provide an intense and orderly and continuous attention, to mobilize the whole comfortably and effortlessly and, in short, to enable a more ergonomic and functional design of the interior of the ambulance care cell.
El elemento principal del PAM consiste en un bastidor de forma y sección rectangular constituido a partir de una pluralidad de elementos (perfiles metálicos y placa soporte) que le proporcionan la rigidez y resistencia necesarias, y que incorpora un grupo motor, un dispositivo electrónico de control, preferentemente un dispositivo electrónico de estado sólido, y baterías de alimentación. Este bastidor se desplazaThe main element of the PAM consists of a rectangular shaped frame and section constituted from a plurality of elements (metal profiles and support plate) that provide the necessary rigidity and resistance, and that incorporates a motor group, an electronic control device , preferably an electronic solid state device, and power batteries. This frame moves
HOJA DE SUSTITUCIÓN (REGLA 26) sobre cuatro ruedas, de las que las dos traseras reciben el movimiento desde dicho grupo motor. La carcasa de éste último se encuentra montada en sus dos extremos sobre sendos brazos de soporte, cada uno de los cuales se fija por su extremo opuesto a un elemento elástico de suspensión sujeto a su vez al bastidor. Las otras dos ruedas están situadas en la parte delantera, disponiendo de soportes giratorios y de un casquillo de elastómero para absorber pequeños golpes debidos a las irregularidades del terreno.SUBSTITUTE SHEET (RULE 26) on four wheels, of which the two rear receive the movement from said motor group. The latter's housing is mounted at its two ends on two support arms, each of which is fixed at its opposite end to an elastic suspension element in turn attached to the frame. The other two wheels are located at the front, with rotating brackets and an elastomer bushing to absorb small shocks due to irregularities in the ground.
Por encima de la placa soporte del bastidor y unidos solidariamente a los perfiles longitudinales de éste último existen elementos que proporcionan soporte a una camilla y que dejan entre ésta última y la placa soporte un espacio interior vacio destinado a contener los diversos aparatos médicos y permitir el fácil acceso a los mismos. El diseño de los elementos que soportan la camilla prevé que ésta última pueda pivotar sobre cualquiera de sus extremos - a fin de que la inclinación del paciente respecto al plano horizontal sea la adecuada en aquellas patologías que lo requieran-, así como poder variar su altura respecto al suelo, facilitando así el trabajo del personal sanitario y la transferencia del paciente desde el PAM hasta una cama hospitalaria o a la inversa.Above the support plate of the frame and jointly attached to the longitudinal profiles of the latter there are elements that provide support for a stretcher and that leave between the latter and the support plate an empty interior space intended to contain the various medical devices and allow the Easy access to them. The design of the elements that support the stretcher provides that the latter can pivot on any of its ends - so that the inclination of the patient with respect to the horizontal plane is appropriate in those pathologies that require it - as well as being able to vary its height with respect to the ground, thus facilitating the work of health personnel and the transfer of the patient from the PAM to a hospital bed or vice versa.
El suave y cómodo direccionamiento del conjunto PAM- paciente se consigue mediante un asidero o manillar constituido por una pieza tubular con recorrido ascendente, a los que se sujetan los medios de conmutación eléctrica y control de velocidad del motor y que consisten, con preferencia, en dispositivos del tipo "maneta de motocicleta", debido a su fácil e intuitivo manejo.The smooth and comfortable addressing of the patient-PAM set is achieved by a handle or handlebar consisting of a tubular piece with upward travel, to which the means of electric switching and motor speed control are attached and which preferably consist of "motorcycle handle" type devices, due to its easy and intuitive operation.
HOJA DE SUSTITUCIÓN (REGLA 26) De acuerdo con una realización preferida, el grupo propulsor previsto para el accionamiento del conjunto está constituido por un motor eléctrico de corriente continua acoplado a un grupo reductor y un engranaje diferencial, todo ello en una misma carcasa. Se consigue así impulsar la unidad móvil a una baja velocidad de desplazamiento que según la realización preferente, está comprendida en la gama de 3 a 5 km/h, y facilitar su giro, incluso en espacios muy reducidos. Finalmente, el juego de anclajes se compone de dos piezas, sujetas permanentemente al suelo del vehículo y dispuestas longitudinalmente sobre el mismo. Una de ellas consiste en un mecanismo dotado de cerrojo de seguridad que captura automáticamente un pivote de acero sujeto a la parte inferior del PAM. La otra es un tope-guía que contribuye a centrar e inmovilizar la unidad en el habitáculo de la ambulancia. Este juego de anclajes impide cualquier desplazamiento en sentido longitudinal, lateral y vertical del PAM durante la marcha del vehículo.SUBSTITUTE SHEET (RULE 26) According to a preferred embodiment, the propellant group provided for the drive of the assembly is constituted by a direct current electric motor coupled to a reduction group and a differential gear, all in the same housing. It is thus possible to drive the mobile unit at a low travel speed which, according to the preferred embodiment, is in the range of 3 to 5 km / h, and facilitate its rotation, even in very small spaces. Finally, the set of anchors consists of two pieces, permanently attached to the floor of the vehicle and arranged longitudinally on it. One of them consists of a mechanism equipped with a safety bolt that automatically captures a steel pivot attached to the bottom of the PAM. The other is a top-guide that helps center and immobilize the unit in the ambulance cabin. This set of anchors prevents any displacement in the longitudinal, lateral and vertical direction of the PAM during vehicle driving.
Breve Descripción de los Dibujos Estas y otras características y ventajas de la invención se pondrán más claramente de manifiesto a partir de la descripción detallada que sigue de una forma preferida de realización, dada únicamente a título de ejemplo ilustrativo y no limitativo, con referencia al dibujo que se acompaña, en el que:Brief Description of the Drawings These and other features and advantages of the invention will become more clearly apparent from the detailed description that follows in a preferred embodiment, given solely by way of illustrative and non-limiting example, with reference to the drawing which is accompanied, in which:
La Figura 1 muestra una vista en perspectiva del dispositivo portacamillas automotriz medicalizable (PAM) construido de acuerdo con la invención.Figure 1 shows a perspective view of the medicalizable automotive stretcher device (PAM) constructed in accordance with the invention.
Descripción de una Forma de Realización PreferidaDescription of a Preferred Embodiment
HOJA DE SUSTITUCIÓN (REGLA 26) Haciendo referencia a la Figura de los dibujos, puede observarse el portacamillas automotriz medicalizable (PAM) de la invención en orden de marcha, es decir, listo para que se le pueda acoplar una camilla en cualquier instante, habiendo sido señalado en general con la referencia numérica 1.SUBSTITUTE SHEET (RULE 26) Referring to the Figure of the drawings, the medicalizable automotive stretcher (PAM) of the invention can be observed in running order, that is, ready so that a stretcher can be attached at any time, having been indicated in general with the reference numeric 1.
El dispositivo presenta en su parte superior las piezas 2 en horquilla que sirven para alojar y anclar las barras de refuerzo transversal de la camilla. Las horquillas basculantes 3 permiten que cualquiera de dichas barras pueda mantenerse en una posición más elevada respecto a la otra, consiguiendo así que la camilla se incline un cierto ángulo de amplitud predeterminada. Se aprecia, asimismo, la placa o bandeja 4 portaequipos que sirve de base de sustentación común al instrumental médico (no representado) .The device has in its upper part the fork pieces 2 which serve to house and anchor the transverse reinforcement bars of the stretcher. The tilting forks 3 allow any of said bars to be held in a higher position with respect to the other, thus ensuring that the stretcher bends a certain predetermined angle of amplitude. It is also appreciated the plate or tray 4 equipment carrier that serves as a base of support common to medical instruments (not shown).
La parte inferior del bastidor está formada por una estructura 5 rectangular, obtenida a partir de una pluralidad de perfiles de material, forma y sección diferentes, sobre la que están montados los elementos elásticos 6 de suspensión del conjunto motor, así como dos ruedas 7 delanteras, cada una de las cuales está montada sobre un eje vertical respectivo de giro libre. Las horquillas que sujetan a estas últimas incorporan un casquillo elastómero 8 destinado para reducir o amortiguar los pequeños golpes y vibraciones que pudieran transmitirse al bastidor durante la marcha. También, la carcasa 9 del grupo motor se encuentra vinculada a los elementos elásticos 6 de suspensión por medio de unos brazos de soporte (no apreciables en la Figura) , mientras que las ruedas traseras 10, de mayor diámetro que las delanteras, están montadas sobre los extremos del conjunto motor- reductor-diferencial .The lower part of the frame is formed by a rectangular structure 5, obtained from a plurality of profiles of different material, shape and section, on which the elastic suspension elements 6 of the motor assembly are mounted, as well as two front wheels 7 , each of which is mounted on a respective vertical axis of free rotation. The forks that hold the latter incorporate an elastomeric bushing 8 designed to reduce or dampen the small shocks and vibrations that could be transmitted to the frame during the ride. Also, the housing 9 of the motor group is linked to the elastic suspension elements 6 by means of support arms (not appreciable in the Figure), while the rear wheels 10, larger in diameter than the front ones, are mounted on the ends of the motor-reducer-differential assembly.
HOJA DE SUSTITUCIÓN (REGLA 26) Además, desde la parte superior de un arco tubular 11 asociado a la parte trasera del bastidor 5, emergen dos elementos tubulares 12 paralelos, que tras un corto recorrido vertical presentan luego otra porción de desarrollo horizontal, siendo estas porciones utilizables como mangos por parte del usuario, y sobre los que se montan medios 13, 14 encargados de la conexión/desconexión de la alimentación eléctrica y de control de velocidad del motor, y que con preferencia consisten en elementos de tipo "mando de gas de motocicleta". El empleo de este dispositivo de conmutación y control ha sido elegido por presentar unas características de manejo asequibles para cualquier usuario y porque permitan llevar a cabo tales operaciones de manera rápida, fiable e intuitiva.SUBSTITUTE SHEET (RULE 26) In addition, from the top of a tubular arch 11 associated to the rear of the frame 5, two parallel tubular elements 12 emerge, which after a short vertical path then present another horizontal development portion, these portions being usable as handles by the user, and on which means 13, 14 are installed responsible for the connection / disconnection of the power supply and motor speed control, and which preferably consist of "motorcycle gas control" type elements. The use of this switching and control device has been chosen because it has affordable operating characteristics for any user and because they allow such operations to be carried out quickly, reliably and intuitively.
En la descripción que antecede, se ha definido el conjunto de portacamillas automotriz medicalizable (PAM) para ambulancias en función de las diversas partes características que lo componen, desde un punto de vista generalizado.In the description above, the set of medicalizable automotive chairlift (PAM) for ambulances has been defined based on the various characteristic parts that compose it, from a generalized point of view.
Como se comprenderá, con el conjunto que se ha descrito en lo que antecede se proporciona una unidad realmente funcional y completa para el cuidado y atención de un paciente durante su traslado en una ambulancia, poniendo a disposición del personal sanitario los medios que le resultan imprescindibles para la asistencia médica desde un punto de vista general, en las mejores condiciones, y sin que esa atención tenga que interrumpirse bajo ninguna circunstancia. No se considera necesario hacer más extenso el contenido de esta descripción para que un experto en la materia pueda comprender su alcance y las ventajas derivadas de la invención, así como desarrollar y llevar a la práctica el objeto de la misma.As will be understood, with the set described above, a truly functional and complete unit is provided for the care and care of a patient during their transfer in an ambulance, making available to the health personnel the means that are essential for them. for medical assistance from a general point of view, in the best conditions, and without that attention having to be interrupted under any circumstances. It is not considered necessary to make the content of this description more extensive so that a person skilled in the art can understand its scope and the advantages derived from the invention, as well as develop and put into practice the object thereof.
HOJA DE SUSTITUCIÓN (REGLA 26) No obstante, debe entenderse que la invención ha sido descrita según una realización preferida de la misma por lo que puede ser susceptible de modificaciones sin que ello suponga alteración alguna del fundamento de dicha invención pudiendo afectar tales modificaciones en particular, a la forma al tamaño y/o a los materiales de fabricación del conjunto.SUBSTITUTE SHEET (RULE 26) However, it should be understood that the invention has been described according to a preferred embodiment thereof, so that it may be susceptible to modifications without implying any alteration of the basis of said invention, and such modifications may affect in particular the shape and size. / or the manufacturing materials of the set.
HOJA DE SUSTITUCIÓN (REGLA 26) SUBSTITUTE SHEET (RULE 26)

Claims

REIVIISΠJICACIONES REIVIISΠJICATIONS
1.- Portacamillas automotriz medicalizable, destinado al traslado de un paciente mientras recibe cuidado y atención permanente, caracterizado porque se ha constituido a partir de una estructura (5) formada por una pluralidad de perfiles de diferente material, forma y sección, unidos entre sí, que además de servir de base de apoyo de una camilla, permiten configurar un espacio interior para alojamiento de equipos e instrumental médico sobre una bandeja (4) inferior, y para la movilización del conjunto, a cuyo efecto dispone de cuatro ruedas (7, 10) , de las que dos de ellas, preferentemente las delanteras (7), están montadas sobre soportes giratorios respecto a su eje vertical respectivo, y las otras dos (10),. de mayor diámetro que las anteriores, están asociadas a un medio motriz que les comunica movimiento para el desplazamiento del conjunto a una velocidad comprendida entre límites predeterminados . 1.- Medicalizable automotive chairlift, intended for the transfer of a patient while receiving permanent care and attention, characterized in that it has been constituted from a structure (5) formed by a plurality of profiles of different material, shape and section, joined together , which in addition to serving as a support base for a stretcher, allow you to configure an interior space for accommodation of medical equipment and instruments on a lower tray (4), and for the mobilization of the assembly, for which purpose it has four wheels (7, 10), of which two of them, preferably the front ones (7), are mounted on rotating supports with respect to their respective vertical axis, and the other two (10). larger in diameter than the previous ones, they are associated with a driving medium that communicates movement for the movement of the assembly at a speed between predetermined limits.
2.- Portacamillas automotriz medicalizable según la reivindicación 1, caracterizado porque el medio motriz está constituido, preferentemente, por un motor eléctrico de corriente continua acoplado a un mecanismo reductor/diferencial, con una rueda (10) incorporada en cada uno de los ejes de éste último, estando dicho motor alimentado a partir de baterías eléctricas y controlado por un dispositivo electrónico de estado sólido.2. A medicalizable automotive stretcher holder according to claim 1, characterized in that the driving means is preferably constituted by a direct current electric motor coupled to a reduction / differential mechanism, with a wheel (10) incorporated in each of the axes of the latter, said motor being powered from electric batteries and controlled by an electronic solid state device.
3.- Portacamillas automotriz medicalizable según la reivindicación 1 ó 2, caracterizado porque dispone de un manillar (12) que sirve de mango para el correcto manejo y díreccionamiento del conjunto, y en el que se montan a derecha e izquierda sendas manetas (13, 14) con medios para3. Medicalizable automotive chairlift holder according to claim 1 or 2, characterized in that it has a handlebar (12) that serves as a handle for the correct handling and direction of the assembly, and in which both levers (13, 14) with means to
HOJA DE SUSTITUCIÓN (REGLA 26) la conexión/desconexión de la alimentación al motor y para el control de velocidad del mismo.SUBSTITUTE SHEET (RULE 26) the connection / disconnection of the power supply to the motor and for its speed control.
4.- Portaca illas automotriz medicalizable según cualquiera de la reivindicaciones anteriores, caracterizado porque opcionalmente puede incorporar un circuito de distribución de energía eléctrica a partir de una fuente externa, destinado a suministrar alimentación a los equipos médicos que se instalen en dicha estructura.4.- Medicalizable automotive ilca holder according to any of the preceding claims, characterized in that it can optionally incorporate an electric power distribution circuit from an external source, intended to supply power to the medical equipment installed in said structure.
HOJA DE SUSTITUCIÓN (REGLA 26) SUBSTITUTE SHEET (RULE 26)
PCT/ES2004/000129 2003-11-25 2004-03-18 Self-propelled stretcher support suitable for use in the medical field WO2005051277A1 (en)

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ES200302766A ES2235630B1 (en) 2003-11-25 2003-11-25 MEDICALIZABLE AUTOMOTIVE CARRIER HOLDER.
ESP200302766 2003-11-25

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US10799403B2 (en) 2017-12-28 2020-10-13 Stryker Corporation Patient transport apparatus with controlled auxiliary wheel deployment
US11071662B2 (en) 2017-12-28 2021-07-27 Stryker Corporation Patient transport apparatus with controlled auxiliary wheel speed
US11141333B2 (en) 2017-12-19 2021-10-12 Stryker Corporation Patient transport apparatus with handle assembly for controlling drive system
CN117338538A (en) * 2023-12-04 2024-01-05 河北普康医疗设备有限公司 Auxiliary medical frame for electric medical bed

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US11141333B2 (en) 2017-12-19 2021-10-12 Stryker Corporation Patient transport apparatus with handle assembly for controlling drive system
US11642262B2 (en) 2017-12-19 2023-05-09 Stryker Corporation Patient transport apparatus with handle assembly for controlling drive system
US10799403B2 (en) 2017-12-28 2020-10-13 Stryker Corporation Patient transport apparatus with controlled auxiliary wheel deployment
US11071662B2 (en) 2017-12-28 2021-07-27 Stryker Corporation Patient transport apparatus with controlled auxiliary wheel speed
US11357675B2 (en) 2017-12-28 2022-06-14 Stryker Corporation Patient transport apparatus with controlled auxiliary wheel deployment
US11559442B2 (en) 2017-12-28 2023-01-24 Stryker Corporation Patient transport apparatus with controlled auxiliary wheel deployment
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CN117338538B (en) * 2023-12-04 2024-03-19 河北普康医疗设备有限公司 Auxiliary medical frame for electric medical bed

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EP1693035A1 (en) 2006-08-23
ES2235630A1 (en) 2005-07-01

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