WO2013003964A1 - Dispositif pour modifier certaines propriétés d'une surface de support et procédé de prophylaxie contre des dangers pour la santé - Google Patents

Dispositif pour modifier certaines propriétés d'une surface de support et procédé de prophylaxie contre des dangers pour la santé Download PDF

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Publication number
WO2013003964A1
WO2013003964A1 PCT/CH2012/000147 CH2012000147W WO2013003964A1 WO 2013003964 A1 WO2013003964 A1 WO 2013003964A1 CH 2012000147 W CH2012000147 W CH 2012000147W WO 2013003964 A1 WO2013003964 A1 WO 2013003964A1
Authority
WO
WIPO (PCT)
Prior art keywords
support
supported
person
bridge
actuator
Prior art date
Application number
PCT/CH2012/000147
Other languages
German (de)
English (en)
Inventor
Andrin MAGGI
Michael Sauter
Original Assignee
Compliant Concept Ag
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 Compliant Concept Ag filed Critical Compliant Concept Ag
Publication of WO2013003964A1 publication Critical patent/WO2013003964A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
    • A61B5/1116—Determining posture transitions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/44—Detecting, measuring or recording for evaluating the integumentary system, e.g. skin, hair or nails
    • A61B5/441—Skin evaluation, e.g. for skin disorder diagnosis
    • A61B5/447—Skin evaluation, e.g. for skin disorder diagnosis specially adapted for aiding the prevention of ulcer or pressure sore development, i.e. before the ulcer or sore has developed
    • 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
    • A61G7/05—Parts, details or accessories of beds
    • A61G7/057—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor
    • A61G7/0573—Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor with mattress frames having alternately movable parts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/02—Details of sensors specially adapted for in-vivo measurements
    • A61B2562/0261—Strain gauges
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/04—Arrangements of multiple sensors of the same type
    • A61B2562/046—Arrangements of multiple sensors of the same type in a matrix array
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6887—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient mounted on external non-worn devices, e.g. non-medical devices
    • A61B5/6891—Furniture
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6887—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient mounted on external non-worn devices, e.g. non-medical devices
    • A61B5/6892—Mats

Definitions

  • the invention relates to a device for
  • Pressure ulcers are also called pressure ulcers, decubitus ulcers or wound beds ulcers.
  • CH-A2-700874 discloses such
  • each of the storage elements is adjustable by means of an actuator in height, and wherein each of these actuators comprises a sensor to detect the pressure exerted by the patient body pressure.
  • Measurement data from the sensors are processed and graphically displayed so that caregivers can recognize critical stress points and relieve them in a targeted manner.
  • the relief takes place by adjusting the altitude of one or more actuators e.g. is changed by pneumatic or hydraulic force application.
  • Pressure points can also be automatically taken over by a controller.
  • areas or storage elements are detected in which the pressure load is too high.
  • a processing system evaluates the measurements as a function of time and controls or regulates the height of the storage elements so that the contact pressure locally to an uncritical Mass is reduced.
  • each actuator is individually equipped with a sensor so that the contact pressure at each of these
  • Actuators can be regulated. So that local pressure points can be detected and the contact pressure can be locally controlled or regulated, the patient must rest as directly as possible on the individual storage elements. An additional, several or all storage elements covering mattress or padding would the measurements of the sensors in the individual storage elements in an inadmissible manner
  • An object of the present invention is to provide a
  • a further object of the invention is to automatically control the deformation of the support surface for decubitus prophylaxis in a person as a function of sensory measured quantities.
  • the invention is based on the recognition that the.
  • Pressure points and a targeted local relief of such pressure points not mandatory. It is sufficient to detect and monitor changes in the position of a person, which cause a sufficient relief of vulnerable pressure points.
  • Movement of the mattress can be changed sufficiently.
  • Embodiment of the inventive device already be effected with only one actuator.
  • Supporting element supported on an elongated bridge.
  • the bridge itself is supported on two lateral longitudinal beams of the bed frame and aligned approximately in the pelvic area of a person lying across the bed.
  • Support element has the shape of a e.g. height-adjustable bellows by means of compressed air and is supported on the one end of the bridge on this.
  • the end regions of the bridge comprise differently high support bodies for the elongated support element.
  • Support member at least partially deformable and is supported by two or more height-adjustable support elements at different longitudinal positions on the bridge
  • Such support elements are near their ends at other bearings in a fixed predetermined height with sufficient freedom of movement on the bridge stored.
  • the shape of a lying on the mattress mattress between its two longitudinal sides can be modified in many ways.
  • a plurality of such adjustable support elements are supported on a bridge and / or more of such bridges with adjustable support elements on the bed frame or generally on a support device.
  • the support surface may also be the lying surface of a mattress on which the person rests directly.
  • a mattress may comprise a plurality of chambers whose volume can be increased by adding and removing a fluid medium such as e.g. Air can be changed by means of a pump as an actuator.
  • the actuator or actuators are controlled by a controller. The actuation of the actuators takes place
  • Movements of a person on the bed represent, and as a function of time as a second measure.
  • the controller changes the position or shape of the adjustable by means of the actuators
  • control for each person to be monitored depending on the state of health individual reference intervals can be specified.
  • control causes a change to another by setting the actuators accordingly
  • the required measuring device includes
  • the at least one sensor whose measured variable allows conclusions about the position or about changes in position of a person lying on the bed.
  • the sensors whose measured variable allows conclusions about the position or about changes in position of a person lying on the bed.
  • Measuring device at least one weight or
  • Force sensor located in the power transmission path between the load supported by the bridge and the bridge supporting Carrying device is arranged, and the measured variable is variable by the load distribution of the supported load.
  • force sensors at the support points of the bridge in the support device it is advantageous to force sensors at the support points of the bridge in the support device
  • Pelvic area of the person to be supported are arranged.
  • Weight distribution in the pelvic area changes autonomously several times within a predetermined period of time, the pressure ulcer risk is low. For the timely detection of the risk of a pressure ulcer, it is therefore sufficient
  • Monitor movements or changes in position in the pelvic area of a person This can be achieved by detecting the position of the center of gravity of the load borne by this middle region transversely to the longitudinal direction of the lying surface in a central region of the lying surface.
  • the pelvic area of the person to be monitored is supported in this central area of the lying area.
  • a bridge structure arranged, which supports the mattress in the pelvic area of a person lying on it.
  • One or more sensors of a measuring device may e.g. be arranged together with one or more actuators on a bridge with one or more support elements.
  • sensors can also be arranged separately or independently of actuators, for example on a pressure-sensitive mat which can be placed on the lying surface or on the mattress.
  • the inventive device can not only at
  • Beds are used.
  • any supportive surfaces that can be used to support or carry persons can be formed in this way, for example
  • the bridge comprises one or more resistive force or pressure sensors, in particular strain gauges, also called DMS for short, which change their electrical resistance depending on the respective compressive or tensile load.
  • resistive force or pressure sensors in particular strain gauges, also called DMS for short, which change their electrical resistance depending on the respective compressive or tensile load.
  • sensors operating according to other physical principles whose measured variables change depending on the load distribution acting on the bridge, for example optical, capacitive or inductive
  • piezoelectric force sensors can also be used. However, these are usually only suitable for recording dynamic processes. For the detection of a static load distribution or the
  • This weight sensor is preferably arranged so that it detects as possible only the contact force of the transverse element on one side of the frame. Depending on the center of gravity in the pelvic area of the person lying on the bridge, the weight load distribution between the two lateral support areas on the frame changes with the bridge. The measured variable detected by the sensor thus changes when the center of gravity in the pelvic area of the person to be monitored changes.
  • the sensor is connected to a controller for the acquisition and evaluation of the measured variable.
  • the controller is designed so that it can store the time profile of the sensor signals.
  • information derived from the processing of the measured variable can also be stored.
  • the controller may include processing instructions that filter out of the measurand movements of the person necessary to prevent pressure ulcers in that person. Does not correspond to the frequency and intensity of the movements in the
  • Control predetermined comparison criteria the controller outputs an alarm signal.
  • the controller can also be used to detect
  • measured variables recorded by the sensor can be stored if the person lies in a defined position on the bed, in particular if the main load of the bridge takes place approximately in the middle of the bridge.
  • control of the body weight of the person to be monitored or other parameters can be specified. Together with these parameters and the measured value of the sensor, the control can not only control the
  • Decubitus prophylaxis required changes in position, but also monitor the position of the person in the transverse direction of the bed.
  • the measured variable can for example also be filtered in different ways or further processed in different ways in order to obtain information about activities and / or
  • Gain bodily functions such as breathing or the pulse.
  • the breathing of a sleeping person can be monitored. If the breathing is irregular or completely suspended during a predetermined or predetermined reference time - as may occur, for example, in persons suffering from apnea - this condition can be remedied automatically by stimulating a rearrangement.
  • the heart rate or the pulse of a person can be monitored. If this falls under one
  • a normalization can be achieved by actively stimulating a rearrangement. Because the
  • Stimulation of an autonomous rearrangement of the person is gentle, the sleep of the person is not disturbed.
  • the present invention is generally applicable to
  • Health prophylaxis and in particular be used for decubitus prophylaxis.
  • the bridge can be supported directly or indirectly by means of connecting means on the frame or otherwise mounted on the frame.
  • Show Figure 1 shows a storage device with a
  • FIG. 2 shows a partial view of the storage device from FIG. 1 with two support elements adjustably mounted on a bridge
  • FIG. 3 shows a partial view of the storage device from FIG. 2,
  • Figure 4 is a schematic representation of a
  • FIG 5 shows the arrangement of Figure 4, wherein the
  • Figure 7 is a bridge with a in shape
  • FIG. 8 is a schematic representation of the bridge
  • FIG. 9 shows a further embodiment of a bridge with integrated sensors
  • FIG. 10 shows a schematic side view of the bridge from FIG. 9.
  • Figure 1 shows a storage device with a
  • Wing 1 or lying surface, as they are e.g. for beds in hospitals and nursing homes is used for laying a mattress.
  • the support surface 1 comprises two parallel longitudinal members 3, between which a back part 5 and a leg and foot part, henceforth called foot part 7, are pivotally mounted. At the ends of the longitudinal members 3 are mounting plates 11 for attachment to a
  • the longitudinal beams 3 may alternatively be associated with the support device.
  • the support surface 1 comprises a central part 9, which in conventional beds, for example, a rigid
  • Sheet metal construction may be, which is usually firmly connected to the two longitudinal beams 3 and is not movable relative to it (not shown).
  • the middle part 9 extends transversely to the bed approximately in the region of the pelvis of a person lying on the bed.
  • FIG. 2 shows a detail of an arrangement in which only in the region of
  • a bridge 10 is arranged.
  • the back part 5 and the foot part also comprise such bridges 10, the end regions of which are supported directly on the longitudinal bars 3 or indirectly on the adjustable frame of the back part 5 or of the foot part 7.
  • the support surface 1 comprises at least one elongated support element 12.
  • the support elements 12 in the example shown each comprise a rigid one
  • each of the support elements 12 are mounted on bearings of the bridges 10 so that they can deform between these bearings, but maintained at the bearings their distance substantially.
  • each of the rigid middle section and the adjacent flexible outer sections are mounted on bearings of the bridges 10 so that they can deform between these bearings, but maintained at the bearings their distance substantially.
  • Support elements 12 each by a height-adjustable
  • Support member 14 supported on the bridge 10. Between these support elements 14, the support elements 12 may be connected by means of guide elements 16 with the bridge 10.
  • the guide elements 16 guide the movement of the rigid central portions in the deformation of the support members 12.
  • the support members 14 are generally any actuator of an actuator device used to influence characteristics of the support surface 1 and controlled by an electronic controller 21.
  • the support elements 14 may be e.g.
  • pneumatically or hydraulically adjustable bellows or electric drives include.
  • the storage device may also only a part of the support elements 12 - in particular of the
  • Middle section 9 - be equipped with actuators.
  • the support members 12 project beyond the
  • sensor 13 is to be understood generally and includes e.g. any force sensors 13a, in particular resistive strain gauges or pressure sensors.
  • This bridge 10 of the central part 9 is thus part of a measuring device with at least one sensor 13, the measured variable in
  • the bridge 10 is designed as a force transmission means. As part of the wing 1, it carries the weight bearing on it and is in turn carried by the longitudinal bars 3 or the bed frame.
  • FIG. 3 shows a detail of the arrangement Figure 2, but without support elements 12 and without
  • the sensor or sensors 13 can in principle
  • Carrying device connects, on the carrier itself or somewhere in between.
  • the sensor (s) 13 or force sensors 13a are connected via one or more connecting lines (not shown) to the electronic controller 21, which evaluates the measured variables and generates control variables for the actuators or the supporting elements 14.
  • the corresponding control lines are not shown.
  • the sensor or sensors 13 are formed separately or independently of the actuator (s). Their measured variables contain information about the situation or about changes in position or movements of the supported person.
  • the sensors 13 need not be located at the same locations as the actuators.
  • the detectable by the sensors 13 areas do not have to be congruent with the influenceable by the actuators effective ranges.
  • any measured variables can be detected, from which movements or changes in position of the person can be derived.
  • Sensors 13 are used to detect movements. As a criterion for judging sufficiently strong
  • Changes in position for example, the signal strengths and / or the duration of the sensor signals or
  • Processing device of the controller 21 are compared. After one found in this way
  • the duration of the delay time can optionally be adjusted automatically within predefined limits. For example, the time course of the detected movements can be saved.
  • controller 21 determines a sufficient number of autonomous movements of the person, it may e.g. increase the value of the delay time.
  • controller 21 may also be used to influence an optical and / or acoustic
  • the controller 21 or parts of this controller 21 may, for example, also be arranged on the bridge 10 or on one or more of the sensors 13, 13a.
  • the sensors 13, 13a For example, a control and / or evaluation such as an A / D converter include (not shown).
  • a plurality of sensors 13, 13a may also include common electronics for driving and / or evaluating (not shown).
  • at least a part of the controller 21 is arranged in a housing which can be attached as needed at different locations of a bed, for example at the head or foot end of the bed frame.
  • the controller 21 preferably comprises a display, an optical and / or acoustic
  • Warning device buttons or other input means for influencing device functions and an interface, such as a connector for an Ethernet connection for communication with other devices (not shown).
  • the lying surface or the supporting surface 1 may be formed in different ways. It may be formed, for example, as in an embodiment according to Figure 1 for placing a mattress. In alternative embodiments, the support surface 1 may for example also be the lying surface of a mattress (not shown). A person can thus depending on
  • Embodiment directly or indirectly supported by the wing 1 or worn.
  • FIGS. 4, 5 and 6 show a schematic in the
  • Support member 12 is inclined to the horizontal by an inclination angle ß to the bottom left.
  • the actuators and the controller 21 are preferably for setting a plurality of predeterminable layers or in general
  • Configurations of the support members 12 is formed. In alternative embodiments, e.g. by
  • FIG. 7 shows a further bridge 10 with a shape or shape through two support elements 14
  • the support members 14 are supported on a rigid base plate 31, wherein at the ends of this base plate 31 bracket 33 for attachment to the lateral longitudinal members of a bed frame (not shown) are formed.
  • the lath-type support element 12 has in the middle section a zone with lower flexural elasticity than in the outer sections adjoining on both sides
  • Support elements 14 are arranged in the boundary region between these three sections. In between, the support element 12 is held with bands 35 on the base plate 31.
  • Figure 8 shows schematically the arrangement of Figure 7, wherein the left support member 14a extended to full height and the right support member 14b are in its lowest position.
  • the bracket 33 are not shown in Figure 8. Accordingly, the support member 12 and deforms
  • Figure 9 shows a possible embodiment of a
  • Base plate 31 for supporting support elements 14. It comprises at least one rigid top
  • Plate section 37a, 37b which is supported by support members 41 and spacers on a flexurally elastic lower plate 39. If the plate 37 comprises a plurality of sections 37a, 37b, these are preferably hinged or through flexurally elastic connecting means connected to each other (not shown).
  • the two plates 37, 39 are preferably made of metal, for example made of stainless steel.
  • Plate sections 37a, 37b comprise bevelled

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Medical Informatics (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Pathology (AREA)
  • Biophysics (AREA)
  • Physiology (AREA)
  • Dentistry (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dermatology (AREA)
  • Nursing (AREA)
  • Invalid Beds And Related Equipment (AREA)

Abstract

L'invention concerne une surface de support (1) d'un ensemble lit pour personnes comprenant au moins un élément de support (12) dont la position ou la forme peut être modifiée par une unité de commande électronique (21) pour prévenir certains dangers pour la santé, au moyen d'un actionneur, en fonction d'au moins une grandeur de mesure destinée à influer sur l'activité d'une personne soutenue ou portée par ladite surface de support.
PCT/CH2012/000147 2011-07-01 2012-06-29 Dispositif pour modifier certaines propriétés d'une surface de support et procédé de prophylaxie contre des dangers pour la santé WO2013003964A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH01113/11A CH705224A1 (de) 2011-07-01 2011-07-01 Vorrichtung zum Verändern von Eigenschaften einer Tragfläche zur Gesundheitsprophylaxe und entsprechendes Verfahren.
CH1113/11 2011-07-01

Publications (1)

Publication Number Publication Date
WO2013003964A1 true WO2013003964A1 (fr) 2013-01-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH2012/000147 WO2013003964A1 (fr) 2011-07-01 2012-06-29 Dispositif pour modifier certaines propriétés d'une surface de support et procédé de prophylaxie contre des dangers pour la santé

Country Status (2)

Country Link
CH (1) CH705224A1 (fr)
WO (1) WO2013003964A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11359957B2 (en) 2016-12-27 2022-06-14 Laromed Gmbh Modular sensor system and use of the modular sensor system in a slatted frame mattress

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0260905A2 (fr) * 1986-09-15 1988-03-23 Medogar Technologies Support corporel avec moyens pour éviter la formation d'escarres
EP1180352A1 (fr) * 1999-03-25 2002-02-20 Matsushita Seiko Co.Ltd. Dispositif de deplacement d'un corps
GB2369047A (en) * 1998-04-24 2002-05-22 Nightingale Care Beds Ltd Sectionally-adjustable bed with pressure sensing and monitoring means
WO2009127405A1 (fr) * 2008-04-17 2009-10-22 Sartorius Ag Procédé de surveillance des activités de mouvement d'un patient
CH700874A2 (de) 2009-04-29 2010-10-29 Messerli & Partner Gmbh Patientenlagerungssystem zur Verminderung von Druckschäden (Dekubitus) während medizinischen Behandlungen sowie zur Messung der aufgetretenen Gewebebelastungen.

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Publication number Priority date Publication date Assignee Title
US5170364A (en) * 1990-12-06 1992-12-08 Biomechanics Corporation Of America Feedback system for load bearing surface
US5625914A (en) * 1996-02-01 1997-05-06 Schwab; Patrick R. Automatic mattress surface contour and support changing apparatus with wave sensors
JP2006051212A (ja) * 2004-08-12 2006-02-23 Sanyo Electric Co Ltd 転落防止ベッド
US7716761B1 (en) * 2005-07-06 2010-05-18 Gilstad Dennis W Adaptive positioning system
US8745788B2 (en) * 2005-07-26 2014-06-10 Hill-Rom Services. Inc. System and method for controlling an air mattress
CH702268A1 (de) * 2009-11-23 2011-05-31 Empa Verformbares Stützelement und Liegesystem.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0260905A2 (fr) * 1986-09-15 1988-03-23 Medogar Technologies Support corporel avec moyens pour éviter la formation d'escarres
GB2369047A (en) * 1998-04-24 2002-05-22 Nightingale Care Beds Ltd Sectionally-adjustable bed with pressure sensing and monitoring means
EP1180352A1 (fr) * 1999-03-25 2002-02-20 Matsushita Seiko Co.Ltd. Dispositif de deplacement d'un corps
WO2009127405A1 (fr) * 2008-04-17 2009-10-22 Sartorius Ag Procédé de surveillance des activités de mouvement d'un patient
CH700874A2 (de) 2009-04-29 2010-10-29 Messerli & Partner Gmbh Patientenlagerungssystem zur Verminderung von Druckschäden (Dekubitus) während medizinischen Behandlungen sowie zur Messung der aufgetretenen Gewebebelastungen.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11359957B2 (en) 2016-12-27 2022-06-14 Laromed Gmbh Modular sensor system and use of the modular sensor system in a slatted frame mattress

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