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
  • A61G7/018—Control or drive mechanisms
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
  • A61B5/00—Measuring for diagnostic purposes; Identification of persons
  • A61B5/103—Measuring 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 or mobility of a limb
  • A61B5/1113—Local tracking of patients, e.g. in a hospital or private home
  • A61B5/1115—Monitoring leaving of a patient support, e.g. a bed or a wheelchair
• • 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
  • A61G2203/30—General characteristics of devices characterised by sensor means
  • A61G2203/32—General characteristics of devices characterised by sensor means for force
• • 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
  • A61G2203/30—General characteristics of devices characterised by sensor means
  • A61G2203/44—General characteristics of devices characterised by sensor means for weight
• • 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
  • 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
  • A61G7/015—Beds specially adapted for nursing; Devices for lifting patients or disabled persons having adjustable mattress frame divided into different adjustable sections, e.g. for Gatch position

Definitions

• the invention relates to a hospital or care bed equipped with an electric actuator system comprising at least one linear actuator, a control, a power supply and at least one operating panel, and where the linear actuator comprises means for registering the force on the linear actuator and the relative changes therein, and where the actuator system comprises a network driven as a serial data stream to which data of a force registered by the linear actuator may be converted.
• the actuator system is according to the invention of the type which can be used for adjusting a hospital or care bed.
• the mattress is carried by a support surface which may be raised and lowered by means of electromechanical linear actuators (hereafter mentioned as linear actuators) which are comprised by the actuator system.
• linear actuators hereafter mentioned as linear actuators
• the backrest and the legrest sections of the bed may be adjusted by means of linear actuators.
• linear actuators comprising a thrust rod, e.g. of the type as described in WO 02/29284 Al LINAK A/S are used.
• a thrust rod e.g. of the type as described in WO 02/29284 Al LINAK A/S are used.
• a weighing system for weighing and/or monitoring the patient's weight.
• the weighing system can also be configured to monitor the patient's position in the bed.
• the weighing system can however also be connected to an alarm which can provide a signal in case the patient assumes a position where it is conceivable that the patient may leave the bed (pre-egress) or the patient has already left the bed (egress) .
• the beds register changes in the patient's center of gravity by means of a number of interconnected weight sensors located at each corner of the lying surface of the bed frame. By comparing the readings from each weight sensor, it can be detected whether a patient is sitting up and is thus potentially in the process of leaving the hospital bed, but also whether the patient has left the bed.
• each of the linear actuators of the actuator system used for adjusting the bed comprises means for registering the force on the actuator.
• Means for registering these forces may be a load cell, such as a strain gauge or a piezo element.
• the purpose of the invention is to provide a simpler and cheaper actuator system which can register a person's activity level and communicate this to the nursing staff or to the other residents.
• a hospital or care bed equipped with an electric actuator system comprising at least one linear actuator, a control, a power supply, and at least one operating panel, and where the linear actuator comprises means for registering the force on the linear actuator and the relative changes therein, and where the actuator system comprises a network, driven as a serial data stream, to which data of a force registered by the linear actuator can be converted.
• the actuator system comprises means for monitoring the serial data stream and means for registering the time, and where the means for registering the time starts or restarts a time reading each time the means for monitoring the serial data stream registers data of a force on the linear actuator on the serial data stream of the network.
• the above hospital or care bed can alert the staff or other residents in case a patient or a resident requires attention due to inactivity in a given period of time. Due to the simplicity of the hospital or care bed it can be manufactured with low production costs. This hospital or care bed is thus an inexpensive alternative to the existing comprehensive and complex hospital or care beds.
• the network is driven as a wireless network. In this way the cabled connections can be minimized.
• the actuator system on a hospital or care bed has a junction box, comprising the means for monitoring the serial data stream and the means for registering the time.
• a junction box comprising the means for monitoring the serial data stream and the means for registering the time.
• the actuator system can comprise a gateway module which can communicate on the gateway in a protected housing, nursing home or hospital.
• the gateway module can be located in the junction box.
• the actuator system on a hospital or care bed can comprise a module for communication on the internet and/or on the mobile telephone network.
• data on the serial data stream can be transmitted to receivers, present on these networks.
• the means for registering the force on the linear actuator is a load cell.
• the load cell can be a strain gauge or a piezo element .
• the hospital or care bed comprises a backrest section, where the linear actuator is connected to the backrest section.
• Fig. 1 shows a schematic view of a care bed comprising an actuator system
• Fig. 2 shows a schematic view of the actuator system on the care bed shown in Fig. 1,
• Fig. 3 shows a block diagram of the registered forces on the bed seen over time
• Fig. 4 shows a hospital or care bed comprising an actuator system.
• the schematically shown care bed in Fig. 1 comprises a mattress (not shown), supported by an under frame 2.
• the under frame is carried by a pair of legs 3.
• the care bed is equipped with an actuator system (schematically shown in Fig. 2) comprising two linear actuators 4,5 connected to a control box 6 and an operating panel 7.
• the control box 6 comprises a control 8 and a power supply 9.
• the backrest section 10 and the legrest section 11 can be adjusted by the actuators 4,5.
• the actuator system has a network, driven as a serial data stream, to which data from the units of the actuator system can be converted and communicated.
• the network is driven by a microprocessor (positioned) in the control box 6.
• the serial data stream is timed by a clock signal and the data stream is transmitting data packages comprising an identification section and a data section.
• the actuator system comprises means for registering whether a person is occupying the bed 1, or whether a person occupying the bed 1 is moving in the bed. When this means registers that a person is occupying the bed 1 or the person is moving in the bed 1, the signal SI (see Fig. 3) is converted to one or more data packages on the network.
• a means for detecting whether a person is occupying the bed or whether a person occupying the bed is moving in the bed can be provided in that at least one of the actuators 4,5 comprises a load cell which can register the force and the changes in this as a result of the load the user exerts on the bed.
• the actuator system comprises a junction box 12 (also known commercially as: a junction box or multi junction box) which is connected between the control box 6 and the operating panel 7.
• the junction box 10 comprises means for monitoring the serial data stream of the network and means for registering the time.
• the junction box 12 comprises a gateway module which can communicate on the gateway 13 in a protected housing, nursing home or a hospital. The communication can be cabled or wireless.
• the actuator system including the junction box 12 can comprise a module for communication on the internet, the mobile telephone network or another wireless network.
• the means for registering the time is designed to start or restart a vitality time reading T vit at the time Ti.
• the vitality time reading T V it starts or restarts each time the signal SI in the form of one or more data packages is present on the serial data stream (the network)
• the vitality time reading T vit indirectly expresses the period of time where the load cell generates no signal SO.
• the means for registering the time compares the vitality time reading T vit to a predefined reference time T set .
• an alarm is generated via the gateway module, which can be auditory, visual or tactile.
• the alarm could be provided to the staff in a nursing home or in a hospital and to the other residents or to the nursing staff in a protected housing (e.g. a sheltered housing) via the gateway in the nursing home, hospital or common house.
• the load cells or other sensors which register whether a person is occupying the bed or the person occupying the bed is moving in the bed are almost always exposed to a force even though no person is occupying the bed.
• the signal SI will not be generated until an average value calculated continuously by the sensor itself or by the control 8 in the control box 6 is exceeded.
• the average value may for example depend on the position of the person in the bed and further the angle of the adjustable sections of the bed 10,11.
• the operation of the actuator system will be outlined for 3 typical user situations e.g. in a nursing home or in a common house.
• the hospital bed 14 shown in Fig. 4 comprises an under frame 15 and an upper frame 16, where the under frame 15 has drive wheels 17.
• an adjustable support surface for the mattress is mounted on the upper frame 16 .
• the support surface comprises a backrest section 18, an articulated legrest section 19 and a fixed middle section 20 there between.
• the backrest and legrest section 18,19 can be raised and lowered by means of each of its actuators 21,22 such that the support surface may assume different contours.
• the upper frame 16 is connected to the under frame 15 with two linear actuators designed as lifting columns 23,24.
• the actuators 21,22,23,24 are connected to a control box 25 comprising a power supply for connection to mains, a rechargeable battery pack and a control.
• a junction box 26 for connection of control units such as operating panels 27, fixed control units in side rails 28 and possibly other kind of equipment are connected to the control box 25.
• One or more of the actuators 21,22,23,24 comprise means for registering the forces, to which the actuator is exposed. This is described more detailed in connection to Figs. 1-3.
• the units of the actuator system that is control units 27,28, actuators 21,22,23,24, control box 25, junction box 26 and other connected equipment communicate in a network, driven as a serial data stream to which all of the units can convert data.
• the actuator system on the hospital bed 14 functions as described in connection with the care bed 1 (see Figs. 1- 3) .

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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)
• Oral & Maxillofacial Surgery (AREA)
• Molecular Biology (AREA)
• Pathology (AREA)
• Biophysics (AREA)
• Physiology (AREA)
• Dentistry (AREA)
• Physics & Mathematics (AREA)
• Nursing (AREA)
• Invalid Beds And Related Equipment (AREA)
• Measuring And Recording Apparatus For Diagnosis (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=48985420

Family Applications (1)

Country Status (2)

Cited By (2)

Citations (8)

• 2013
  • 2013-06-20 DE DE202013005523U patent/DE202013005523U1/de not_active Expired - Lifetime
  • 2013-10-09 WO PCT/DK2013/000067 patent/WO2014056502A1/fr not_active Ceased

Patent Citations (9)

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