EP0303125A1 - Bâti-porteur pour brancards - Google Patents

Bâti-porteur pour brancards Download PDF

Info

Publication number
EP0303125A1
EP0303125A1 EP88112334A EP88112334A EP0303125A1 EP 0303125 A1 EP0303125 A1 EP 0303125A1 EP 88112334 A EP88112334 A EP 88112334A EP 88112334 A EP88112334 A EP 88112334A EP 0303125 A1 EP0303125 A1 EP 0303125A1
Authority
EP
European Patent Office
Prior art keywords
stretcher
throttled
suspension
platform
acceleration
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP88112334A
Other languages
German (de)
English (en)
Other versions
EP0303125B1 (fr
Inventor
Gmbh Co Binz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Binz GmbH and Co
Original Assignee
Binz GmbH and Co
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 Binz GmbH and Co filed Critical Binz GmbH and Co
Priority to AT88112334T priority Critical patent/ATE67927T1/de
Publication of EP0303125A1 publication Critical patent/EP0303125A1/fr
Application granted granted Critical
Publication of EP0303125B1 publication Critical patent/EP0303125B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G3/00—Ambulance aspects of vehicles; Vehicles with special provisions for transporting patients or disabled persons, or their personal conveyances, e.g. for facilitating access of, or for loading, wheelchairs
    • A61G3/006—Means for reducing the influence of acceleration on patients, e.g. suspension systems of platforms

Definitions

  • the invention relates to a stretcher storage rack for patient transport vehicles or the like. with a spring-loaded stretcher platform, whose optionally lockable suspension device works with little or no damping.
  • the stretcher platforms of the stretcher storage racks in the patient transport vehicles which receive the stretches regularly have a suspension which, however, generally has no damper units.
  • the suspension strokes of the stretcher platform can be carried out largely without damping resistance, as is desirable for the patient to be as shock-free as possible.
  • the resonance frequency of the suspension can be excited under certain circumstances, so that extraordinarily strong suspension strokes occur with strong vertical accelerations of the stretcher platform and thus also the stretcher and the patient.
  • the stretcher stage or the like is in each case at its upward and downward strokes. stop which are arranged to limit the spring travel.
  • a possibly existing device for blocking the suspension primarily serves to carry out a cardiac massage on the patient being transported, the patient having to be relentlessly stored, because otherwise the cardiac massage could not be carried out effectively.
  • the blocking device is not very suitable for preventing excessive suspension strokes of the stretcher platform under unfavorable operating conditions, because if the suspension is blocked, a considerable loss of comfort for the transported patient must be accepted.
  • stretcher storage racks in which the suspension systems of the stretcher platform work with damping or with damper elements are combined. However, it is extremely difficult to optimally specify the strength of the respective damping. In the vast majority of applications, comparatively weak damping is optimal in terms of patient comfort.
  • the invention takes into account the knowledge that all undesirable movements of the stretcher platform are associated with excessive acceleration of the stretcher in the vertical direction.
  • An acceleration sensor can thus react immediately to undesired movements of the stretcher platform. Accordingly, additional damping of the suspension can be switched on or off without delay based on the invention.
  • the invention allows suspension of the stretcher with weak damping or without damping as far as possible, as is desired in view of the comfort of the patient being transported.
  • the increased damping is only switched on in the absolutely necessary cases.
  • the design according to the invention is characterized by a simple design and high effectiveness. Compared to a purely manual activation and deactivation of the additional damping, the suspension characteristics of the stretcher can be immediately adapted to the prevailing circumstances even with frequently changing driving conditions. In addition, tests have shown that manual control of the additional damping is not practical because the medical personnel in the ambulance should primarily monitor the patient being transported and not the route.
  • the suspension and / or damper device has at least two communicating, variable-volume hydraulic chambers, one of which, when the stretcher is deflected and rebounded, reduces its volume with the release of hydraulic medium and the other their volume while absorbing hydraulic medium increases that between the chambers parallel to each other more throttled and weakly throttled or unthrottled lines are arranged, and that an acceleration-dependent shut-off valve device is arranged on the weakly throttled or unthrottled lines. Accordingly, the suspension works practically damping or low damping when the shut-off valve device is open. When the shut-off valve device is closed, the exchange of hydraulic medium between the two chambers can only take place via the more restricted lines, so that the suspension works with a correspondingly increased damping.
  • the stretcher support frame designated 20 in FIG. 1 has a basically known construction.
  • a stretcher platform 1 is connected to a vehicle-mounted base frame 21 via a scissor-type frame, the scissor links 22 and 23 of which are connected to one another by joints 24.
  • the scissor links 22 are on Joints 25 pivotally arranged on the base frame 21 and on sliding joints 26 rotatably and displaceably on the stretcher platform 1.
  • the scissor links 23 are arranged pivotably on the stretcher stage 1 by means of joints 27 and rotatably and displaceably on the base frame 21 by means of sliding joints 28.
  • a spring and damping device 9 the construction of which is explained below with reference to FIGS. 2 and 3, is used for the suspension of the stretcher platform 1 and a stretcher 29 pushed thereon or a patient transported thereon.
  • the suspension and damping device 9 can be arranged directly between the stretcher platform 1 and the base frame 21. In principle, however, it is also possible to arrange this device between one of the links 22 or 23 and the base frame 21 or also the stretcher platform 1.
  • the damping of the suspension and damping device 9 is controlled in a vertical direction as a function of the acceleration of the stretcher platform 1.
  • an acceleration sensor 2 is arranged on the stretcher platform 1.
  • a hydraulic piston-cylinder unit 11 can be arranged between the stretcher platform 1 and the base frame 21, the chamber 3 of which increases when the stretcher platform is extended and decreases when the stretcher is deflected.
  • the chamber 3 is hydraulically connected to a chamber 4 of a gas spring unit 12 which, in addition to the hydraulic chamber 4, also has a gas-filled chamber 13 which is separated from the hydraulic chamber 4 by means of a membrane 14.
  • the chamber 3 of the piston-cylinder unit 11 and the chamber 4 of the gas spring unit 12 are together connected to parallel line branches 5 and 6 via hydraulic lines.
  • a throttle 17 is arranged in line branch 5 and a shut-off valve 7 is arranged in line branch 6.
  • the shut-off valve 7 can be operated electrically or pneumatically or in another manner by motor, the switchover between the open and the closed state taking place as a function of the vertical acceleration of the stretcher platform 1, ie as a function of the output signal of the acceleration sensor 2. If the stretcher platform 1 performs strongly accelerated vertical movements, the shut-off valve 7 is automatically closed, otherwise the shut-off valve 7 remains open.
  • the shut-off valve 7 remains open according to the invention. Accordingly, the exchange of hydraulic medium between the chambers 3 and 4 of the piston-cylinder unit 11 or the gas spring unit 12 can take place without any significant hydraulic resistance, because the line connection between the chambers 3 and 4 via the line branch 6 is practically unrestricted. Accordingly, the suspension of the stretcher platform 1 takes place without or with very little damping.
  • the shut-off valve 7 closes. Accordingly, the exchange of hydraulic medium between the chambers 3 and 4 can only take place via the line branch 5 with the throttle 17, the throttle resistance being one corresponding damping of the suspension strokes of the stretcher platform 1 causes.
  • the average height of the stretcher platform 1 can be changed, if necessary, by changing the total volume of the chambers 3 and 4 by supplying or removing hydraulic medium.
  • a pump 31 and a drain valve 32 can be arranged in order to feed additional hydraulic medium from a reservoir 33 into the chambers 3 or 4 or to return them from the same into the reservoir 33.
  • a mechanical suspension is arranged between the stretcher platform 1 and the base frame 21, which is represented schematically by coil springs 35.
  • One or more hydraulic dampers 36 are arranged parallel to the coil springs 35.
  • these consist of piston Cylinder units with two hydraulic chambers 3 and 4 separated from one another by the piston, which communicate with one another via throttled lines 5 in the piston of the damper 36.
  • a largely unthrottled line 6 with a shut-off valve 7 is arranged between the chambers 3 and 4, which is closed or opened by means of the acceleration sensor 2 on the stretcher platform 1 as a function of the vertical acceleration of the stretcher platform 1.
  • the shut-off valve 7 remains open. Accordingly, the exchange of hydraulic medium between the chambers 3 and 4 can take place without any significant throttling resistance via the unthrottled line 6, i.e. the suspension 35 works without or with very little damping.
  • a chamber 3 or 4 is provided in a known manner with a gas pressure accumulator 39 connected.
  • the shut-off valve 7 can be designed as a solenoid valve which closes when the magnet is energized and is brought into its closed position by a spring when the magnet is de-energized. Basically, the valve 7 can also be actuated in a different way, for example with pneumatic units.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Vehicle Body Suspensions (AREA)
  • Vibration Prevention Devices (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
EP88112334A 1987-08-14 1988-07-29 Bâti-porteur pour brancards Expired - Lifetime EP0303125B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88112334T ATE67927T1 (de) 1987-08-14 1988-07-29 Tragenlagerungsgestell.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8711090U 1987-08-14
DE8711090U DE8711090U1 (de) 1987-08-14 1987-08-14 Tragenlagerungsgestell

Publications (2)

Publication Number Publication Date
EP0303125A1 true EP0303125A1 (fr) 1989-02-15
EP0303125B1 EP0303125B1 (fr) 1991-10-02

Family

ID=6811088

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88112334A Expired - Lifetime EP0303125B1 (fr) 1987-08-14 1988-07-29 Bâti-porteur pour brancards

Country Status (3)

Country Link
EP (1) EP0303125B1 (fr)
AT (1) ATE67927T1 (fr)
DE (2) DE8711090U1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997022322A1 (fr) * 1995-12-15 1997-06-26 Albin Nessman Dispositif de transport de personnes malades
DE102010027208A1 (de) * 2010-07-06 2012-04-05 Björn Steiger Stiftung - Stiftung bürgerlichen Rechts - Transportsystem zum Transport eines Patienten in einem Kraftfahrzeug
CN114159237A (zh) * 2021-12-22 2022-03-11 江苏鸿运汽车科技有限公司 一种柔性车载担架平台

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006021754A1 (de) * 2006-05-10 2007-11-15 Edag Engineering + Design Ag Rettungsboot

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT70172B (de) * 1915-02-24 1915-10-11 Ihre Kaiserliche Und Koeniglic Vorrichtung zum stoßfreien Transport von Verwundeten bzw. von Personen im allgemeinen auf Fahrzeugen.
DE2534826A1 (de) * 1975-08-05 1977-02-24 Binz & Co Abgefederte tragenbuehne
DE2936617A1 (de) * 1979-09-11 1981-03-26 Binz Gmbh & Co, 73547 Lorch Durch eine einstellbare federung abgestuetztes tragengestell, insbesondere fuer krankentragen
US4541134A (en) * 1982-09-04 1985-09-17 The University Of Bath Vibration damping supports
DE3518503C1 (de) * 1985-05-23 1986-10-23 Daimler-Benz Ag, 7000 Stuttgart Vorrichtung zur rechnergestuetzten,fahrbahnabhaengigen Steuerung von Daempfern einer Fahrzeugfederung
US4635959A (en) * 1984-04-30 1987-01-13 Nippondenco Co., Ltd. Shock absorber control system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT70172B (de) * 1915-02-24 1915-10-11 Ihre Kaiserliche Und Koeniglic Vorrichtung zum stoßfreien Transport von Verwundeten bzw. von Personen im allgemeinen auf Fahrzeugen.
DE2534826A1 (de) * 1975-08-05 1977-02-24 Binz & Co Abgefederte tragenbuehne
DE2936617A1 (de) * 1979-09-11 1981-03-26 Binz Gmbh & Co, 73547 Lorch Durch eine einstellbare federung abgestuetztes tragengestell, insbesondere fuer krankentragen
US4541134A (en) * 1982-09-04 1985-09-17 The University Of Bath Vibration damping supports
US4635959A (en) * 1984-04-30 1987-01-13 Nippondenco Co., Ltd. Shock absorber control system
DE3518503C1 (de) * 1985-05-23 1986-10-23 Daimler-Benz Ag, 7000 Stuttgart Vorrichtung zur rechnergestuetzten,fahrbahnabhaengigen Steuerung von Daempfern einer Fahrzeugfederung

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997022322A1 (fr) * 1995-12-15 1997-06-26 Albin Nessman Dispositif de transport de personnes malades
DE102010027208A1 (de) * 2010-07-06 2012-04-05 Björn Steiger Stiftung - Stiftung bürgerlichen Rechts - Transportsystem zum Transport eines Patienten in einem Kraftfahrzeug
DE102010027208B4 (de) * 2010-07-06 2013-05-08 Björn Steiger Stiftung -Stiftung bürgerlichen Rechts- Transportsystem zum Transport eines Patienten in einem Kraftfahrzeug und Kraftfahrzeug
CN114159237A (zh) * 2021-12-22 2022-03-11 江苏鸿运汽车科技有限公司 一种柔性车载担架平台
CN114159237B (zh) * 2021-12-22 2023-10-03 江苏鸿运汽车科技有限公司 一种柔性车载担架平台

Also Published As

Publication number Publication date
ATE67927T1 (de) 1991-10-15
DE8711090U1 (de) 1987-10-08
DE3865269D1 (de) 1991-11-07
EP0303125B1 (fr) 1991-10-02

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