EP4327793A1 - Matratzenstrecker und system zur neupositionierung eines gesundheitspflegebetts - Google Patents

Matratzenstrecker und system zur neupositionierung eines gesundheitspflegebetts Download PDF

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Publication number
EP4327793A1
EP4327793A1 EP23191448.2A EP23191448A EP4327793A1 EP 4327793 A1 EP4327793 A1 EP 4327793A1 EP 23191448 A EP23191448 A EP 23191448A EP 4327793 A1 EP4327793 A1 EP 4327793A1
Authority
EP
European Patent Office
Prior art keywords
motor
roller
mattress
health care
mattress extender
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.)
Pending
Application number
EP23191448.2A
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English (en)
French (fr)
Inventor
Niels Mads Nielsen
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.)
European Caretech Aps
Original Assignee
European Caretech Aps
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
Priority claimed from DKPA202200764A external-priority patent/DK202200764A1/en
Application filed by European Caretech Aps filed Critical European Caretech Aps
Publication of EP4327793A1 publication Critical patent/EP4327793A1/de
Pending 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
    • 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
    • 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

Definitions

  • the present invention relates to a mattress extender and a health care bed repositioning system for patient repositioning, and more particularly, to a safe and efficient system for repositioning a patient by moving the patient toward a head end of a bed.
  • the invention also relates to a mechanical clutch mechanism for repositioning systems and a repositioning system comprising such clutch mechanism.
  • the clutch mechanism is designed to be able to connect and disconnect a motor or other drive mechanism with a pipe or equivalent component in a repositioning system.
  • the disconnected function enables a possibly wound-up medium, such as a sheet, a wire, or a strap, to be manually rewound by the tube or the like, without rotating the motor or another drive mechanism.
  • a possibly wound-up medium such as a sheet, a wire, or a strap
  • this clutch mechanism includes its ability to save space, its great strength, and its function to connect and disconnect by utilizing the motor's or another drive mechanism's ability to operate in two different directions.
  • the clutch is designed to be able to connect and disconnect without being dependent on speed and remain in a connected or disconnect position without being dependent on a power source.
  • a clutch mechanism is not used in a repositioning that moves people or things by, for example, winding up a medium such as a sheet, a wire, or a strap, the motor or another drive mechanism would have to rotate in the opposite direction to rewind the wound-up medium. This would, in some situations, limit the efficiency of the repositioning system.
  • Health care bed repositioning systems for patient repositioning are widely used to safely move and handle patients under the safety, health and welfare at work.
  • WO 2016022558 A1 discloses a patient repositioning system comprising a mattress, two rows of spaced retainers extending along the length of the mattress, a sheet residing on the upper surface. Each of the rows of spaced retainers are adapted to capture a corresponding side of the sheet.
  • the system comprises a pulling device that is operatively connected to the sheet and adapted to pull the sheet toward the head end with a patient residing thereon. Accordingly, the system can reposition the patient.
  • the pulling device is integrated in the front part of the mattress.
  • the pulling device has the same width as the mattress. Therefore, when the pulling device is used in some beds, there is a risk of experiencing a crush injury to a finger (between the pulling device and the bed frame or the side rails).
  • the pulling device is integrated in the mattress. It is not possible to use the pulling device together with an existing mattress. Accordingly, it is required to replace the complete the existing mattress in order to use the desired patient repositioning feature.
  • Some health care beds comprise an integrated bed extension allowing the length of the bed to be extended. Accordingly, the beds can be adjusted to meet specific patient needs.
  • a mattress extender is placed in extension of the existing mattress in order to fill out the space.
  • Clutches for connecting, for example, a motor to another object are available in many versions. For example, there are clutches that connect and disconnect based on speed, manually or electromagnetic clutches that depend on electricity. Accordingly, it is an object to provide an improved clutch mechanism.
  • the mattress extender is a mattress extender for a health care bed repositioning system for a health care bed, wherein the mattress extender comprises a housing having two opposing side portions and a rear side, wherein the housing is provided with an elongated opening arranged and configured to receive a sheet of the health care bed and that mattress extender comprises a rotatably mounted roller extending between the two opposing side portions, wherein the roller is provided with a repositioning device comprising a motor arranged and configured to rotate the roller and hereby move the sheet.
  • the repositioning device is configured to reposition a patient supported on the sheet toward the head end of the health care bed.
  • the mattress extender is box-shaped. It may be an advantage that the mattress extender has a uniform cross-sectional area along the entire length of the mattress extender.
  • the motor is arranged inside the roller, wherein the motor configured to rotate the roller.
  • the motor comprises a motor housing, wherein the motor is attached to a structure of the mattress extender outside the roller in such a manner that the motor housing remains fixed to said structure of the mattress extender during operation of the motor, wherein the motor comprises a shaft that is fixed to or integrated in a rotatably shaft that is fixed to the inside of a wall of the roller.
  • the motor housing does not move relative to the mattress extender and the required energy to rotate the roller can be minimised.
  • a gap is provided between the outside surface of the motor housing and the inside wall of the roller.
  • the two opposing side portions are made from a soft material.
  • the risk of experiencing a crush injury to a finger can be reduced or even eliminated.
  • the mattress extender comprises a top portion made from a soft material.
  • the user comfort can be improved.
  • the opposing side portions have a width of at least 10 mm.
  • the opposing side portions have a width of at least 15 mm.
  • the opposing side portions have a width of at least 20 mm.
  • the opposing side portions have a width of at least 30 mm.
  • the opposing side portions have a width of at least 40 mm.
  • the opposing side portions have a width of at least 50 mm.
  • the soft material comprises a foam material. In one embodiment, the soft material comprises latex. In one embodiment, the soft material comprises fabric. In one embodiment, the soft material comprises polyfoam.
  • the roller comprises a control box arranged inside the roller, wherein the control box is arranged and configured to control the motor, wherein the control box comprises:
  • the roller comprises a coupling that is arranged and configured to provide the roller in:
  • the coupling is arranged inside the housing of the motor.
  • the coupling is arranged inside the housing of the motor.
  • the coupling is arranged next to the housing of the motor.
  • control box is arranged next to the coupling.
  • At least one mounting member is attached to the rear side of the housing.
  • the housing can be attached to a section.
  • the motor comprises a motor housing and a first shaft extending through the end portion of the roller, wherein the roller comprises another shaft extending through the opposite end portion of the roller, wherein the motor comprises a connection shaft extending from the motor housing, wherein the connection shaft is connected to a rotatably shaft that is fixed to the inside of a wall of the roller, wherein the motor housing is fixed to the first shaft, wherein the first shaft is connected to the housing of the mattress extender.
  • the roller comprises a centrally arranged cylindrical portion extending between two tracked portions, wherein the tracked portions are configured to receive the guiding structures of the sheet.
  • the health care bed repositioning system is a health care bed repositioning system comprising a health care bed and a mattress extender according to one of the preceding claims.
  • At least one mounting member is attached to the rear side of the housing.
  • attachment of the rear side of the mattress extender to a section can be eased.
  • At least one mounting member is attached to at least one of the side portions of the housing.
  • attachment of at least one of the side portions of the housing of the mattress extender to a section can be eased.
  • a control member is provided at the at least one of the side portions of the housing, wherein the control member is configured to control the motion of the repositioning device by pushing, turning or pulling the control member.
  • a control member is provided at the at least one of the side portions of the housing, wherein the control member is configured to receive a wired remote control configured to control the motion of the repositioning device by pushing, turning or pulling the remote control.
  • a mounting structure is provided at the at least one of the side portions of the housing, wherein the mounting structure comprises:
  • the motor is arranged in one end of the housing, wherein the motor comprises a first shaft extending through the end portion of the roller, wherein the roller comprises another shaft extending through the opposite end portion of the roller.
  • the motor is rotatably mounted to the roller by means of a rotatably shaft that is fixed to the inside of the wall of the roller.
  • the motor is electrically operated and controlled by a control member.
  • the motor is electrically operated and controlled by a wired remote control electrically or wirelessly connected to the control member.
  • the health care bed comprises a:
  • the health care bed comprises one or more manually operated components arranged and configured to rotate of the third section relative to the support portion.
  • the health care bed comprises one or more electrical actuators arranged and configured to rotate of the third section relative to the support portion.
  • the health care bed comprises a plurality of brackets attached to one or more of the sections, wherein each bracket is L-shaped and comprises a bracket base plate, wherein a mounting structure is provided at the lateral side of each bracket, wherein the mounting structure comprises:
  • each bracket base plate is provided with a bore or an attachment structure to ease the attachment of the bracket base plate to a section.
  • each bracket base plate is welded, glued or fixed by means of mechanical attachment structures to a section or another structure.
  • the clutch mechanism is designed to connect and disconnect solely by utilizing a motor's or another drive mechanism's ability to rotate in two different directions. Consequently, the clutch can connect and disconnect without depending on the speed of the motor or another drive mechanism, or needing to be manually connected or disconnected.
  • the described clutch can also remain connected and disconnected without depending on electricity.
  • the invention provides a mechanical clutch mechanism of the aforementioned kind.
  • This mechanism is integrated with a repositioning system and is designed to connect a motor or another drive mechanism to a pipe or a similar component.
  • This new technique represents a solution to the previously identified technical problems in repositioning systems, by providing a more integrated, efficient, and space-saving solution.
  • the clutch mechanism consists of a series of components, including a ratchet, a spindle, a clutch nut, and a receiver.
  • the clutch mechanism operates by the spindle being securely attached to the motor's or another drive mechanism's axis shaft, such that the spindle rotates in the same direction as the motor or other drive mechanism.
  • the attachment can be done, for instance, through friction, key and keyseat, or a screw.
  • the ratchet is mounted in a way that it does not rotate with the motor or another drive mechanism.
  • Both the clutch nut and the receiver are mounted on the spindle.
  • the receiver connects the clutch to a pipe or equivalent.
  • the receiver can rotate freely on the spindle.
  • the receiver's free rotation can occur directly on the spindle or be optimized, for example, through grease or a bearing.
  • the clutch nut in at least one direction of rotation, can lock the receiver's free rotation on the spindle. It does this by having a series of angled teeth on one side that can mesh with a series of angled teeth on the other side of the receiver.
  • the way the receiver and clutch nut's angled teeth connect and disconnect is that the clutch nut can move in both directions on the spindle.
  • the angled teeth of the receiver and clutch nut disconnect.
  • their teeth mesh together.
  • the clutch nut moves back and forth on the spindle by having internal threads that fit the threads on the spindle. It's this movement of the clutch nut that creates the connection and disconnection.
  • the ratchet can hold the clutch nut from rotating when the spindle rotates. Instead of the clutch nut rotating with the spindle, the clutch nut's position is held relative to the spindle's rotation, and the clutch nut moves forward or backward on the spindle. Whether the clutch nut moves forward or backward depends on which way the spindle rotates. Without the ratchet, the clutch nut, when the spindle rotates slowly enough, would neither move forward nor backward on the spindle but would instead rotate with the spindle.
  • the ratchet points on the clutch nut only allow for partial movement of the clutch nut necessary for a complete connection or disconnection.
  • the remaining movement of the clutch nut on the spindle can occur in two different ways depending on whether the clutch nut connects or disconnects from the receiver.
  • the clutch nut begins to rotate with the spindle in the opposite direction of the connection.
  • the angled teeth of the clutch nut with their slanted side hit the slanted side of the receiver's angled teeth.
  • the two slanted sides of the angled teeth are angled in such a way that when the clutch nut rotates to disconnect, the clutch nut and the receiver are pushed apart. But since the receiver is mounted on the spindle and cannot move forward or backward, the clutch nut will move away from the receiver. This movement of the clutch nut away from the receiver causes the ratchet points of the clutch nut to engage again with the ratchet, which, with continued rotation of the spindle, holds the clutch nut's rotation.
  • the clutch nut moves on the spindle, completing the disconnection of the receiver and the clutch nut's angled teeth.
  • the receiver can rotate freely on the spindle.
  • the use of the ratchet does two things. First, the clutch nut can always engage with the ratchet due to the ratchet's ability to click if they misalign. Secondly, the ratchet will click over the ratchet points in case the spindle continues to rotate in the disconnection direction.
  • the clutch mechanism is mechanical clutch mechanism, comprising:
  • the motor may be replaced by another drive mechanism.
  • the movable clutch nut comprises a track or internal threads having teeth arranged and configured to create a connection, wherein the clutch nut further comprises ratchet points consisting of elevations or depressions configured to interlock with the ratchet.
  • the spindle is designed to follow the rotation from a motor or another drive mechanism), wherein the spindle comprises a track or threads onto which the clutch nut's internal track or threads fits. Additionally, the spindle comprises a rotation point at which the receiver, either directly or using a bearing, is rotatably mounted so the receiver can rotate freely when the clutch mechanism is in a disconnected state.
  • the ratchet is mounted in such a manner that it does not move in relation to the motor's or another drive mechanism's rotation, wherein the ratchet is designed to hold the clutch nut in motion from the motor's or drive mechanism's rotation, in such a manner that the clutch nut through its track or internal threads, regardless of the speed of rotation, can move forward or backward on the track or threads of the spindle.
  • the ratchet is arranged and configured to click past the ratchet points of the clutch nut.
  • the receiver comprises teeth designed to connect with the teeth of the clutch nut, wherein the receiver is mounted on the rotation point of the spindle in such a manner that the receiver in the clutch mechanism disconnected state, can rotate freely on the rotation point of the spindle.
  • the receiver is arranged and configured to connect with a pipe. In an embodiment, the receiver is arranged and configured to connect with a rod.
  • the receiver comprises teeth and the clutch nut comprises teeth which at least on one side are slanted and that the slanted sides are angled in such a manner that when rotated towards each other, the teeth push the receiver and the clutch nut apart.
  • the clutch mechanism is constructed in such a manner that movement of the clutch nut during connection of the clutch mechanism, part of the way is facilitated by the ratchet and the clutch nut's ratchet points, wherein the movement is completed by a straight side of the receiver's teeth and the clutch nut's teeth, wherein the movement of the teeth moves the clutch nut's ratchet points free from the ratchet.
  • the clutch mechanism is constructed in such a manner that movement of the clutch nut during disconnection of the clutch mechanism, is facilitated by the slanted side of the receiver's teeth pushing the slanted side of the clutch nut's teeth in such a manner that the clutch nut's ratchet points move into engagement with the ratchet, wherein the ratchet completes the disconnection of the clutch mechanism.
  • the mechanical clutch mechanism comprises a motor or other drive mechanism arranged and configured to provide rotation to connect and disconnect independently of the motor or other drive mechanism's speed of rotation in such a manner that the clutch mechanism remains either connected or disconnected without depending on power.
  • the mechanical clutch mechanism includes a movable clutch nut arranged to be moved on a spindle through a track or threads.
  • the spindle is driven in a rotating direction by a motor or another drive mechanism.
  • This clutch mechanism contains a ratchet that keeps the clutch nut in motion from the motor or another drive mechanism.
  • the clutch nut is designed to connect with the receiver by the receiver's teeth and the clutch nut's teeth interlocking with each other.
  • the receiver can be attached to a pipe or a similar component in a repositioning system.
  • the receiver contains teeth that assist in completing the connection, after which the clutch nut's ratchet points release from the ratchet.
  • FIG. 1A a schematic top view of some of the main components of a health care bed repositioning system 2 according to the invention is illustrated in Fig. 1A .
  • the health care bed repositioning system 2 is designed for being mounted and used in a health care bed.
  • the health care bed repositioning system 2 is suitable for being used on a health care bed having a mattress 4.
  • a side rail 52 extends along each of the side edges of the mattress 4.
  • the health care bed repositioning system 2 comprises a mattress extender 10 comprising a repositioning device 8 that is arranged and configured to receive and roll-up a sheet and hereby carry out a repositioning of a patient laying on the sheet of the health care bed.
  • the repositioning device 8 is surrounded by a soft and resilient surrounding material 6.
  • the surrounding material 6 may be a foam.
  • the width W 1 of the repositioning device 8 is smaller than the distance W 2 (width) between the two opposing side rails 52, 52' of the health care bed. Accordingly, the risk of crush injury to a finger between the bed frame 5 and the mattress extender 10 is eliminated. Compared to the prior art solution, the invention provides a safer and hereby improved solution.
  • the widths W 3 , W 4 of the side portions 31, 31' of the mattress extender 10 are indicated. It can be seen that the width W 3 of the first side portion 31 basically corresponds to the W 4 of the (opposite) second side portion 31'.
  • the width W 1 of repositioning device 8 is smaller than the width W 2 between the two opposing side rails 52, 52'.
  • Fig. 1B illustrates a side view of some of the main components of a health care bed repositioning system according to the invention.
  • the health care bed repositioning system comprises a health care bed 12 having a support portion 9.
  • the support portion 9 is provided with wheels.
  • the health care bed 12 comprises a first section 20, a second section 20' and a third section 20".
  • the first section 20 is provided at the foot end of the health care bed 12
  • the third section 20" is provided in the head end of the health care bed 12
  • the second section 20' is provided between the first section 20 and the third section 20".
  • the third section 20" is rotatably mounted to the support portion 9. Even though it is not shown, rotation of the third section 20" relative to the support portion 9 can be accomplished by using manually operated components or one or more actuators (preferably one or more electrical actuators).
  • a plurality of brackets 18 are attached to the edge portions of the first section 20.
  • a single bracket 18 is attached to each of the edge portions of the third section 20".
  • a mounting structure 16 provided at the lateral side of the top portion of each of the brackets 18.
  • a mattress extender 10 is provided at the distal end of the third section 20".
  • the mattress extender 10 comprises a repositioning device that is arranged and configured to receive and roll-up a sheet and hereby carry out a repositioning of a patient laying on a sheet of the health care bed 12.
  • the repositioning device 8 is surrounded by a soft and resilient surrounding material 6.
  • the mattress extender 10 comprises a mounting structure 16'.
  • the mounting structures 16, 16' are arranged and configured to receive a guiding structure (see Fig. 5C ) and hereby guide the sheet being moved by means of the repositioning device.
  • the mattress extender 10 is attached to the third section 20" by means of a mounting member 24.
  • a control member 26 is provided at the side portion of the mattress extender 10.
  • the control member 26 is formed as a control member 26 that allows the user to control the motion of the repositioning device by pushing, turning or pulling the control member 26.
  • the control member 26 is placed elsewhere (e.g. at the underside of the mattress extender 10).
  • the mattress extender 10 comprises a motor that is electrically operated and controlled by a remote control that is connected to a cable provided with an electrical connection member in its distal end.
  • the mattress extender comprises an electrical socket (not shown) arranged and configured to receive the electrical connection member of the cable.
  • the electrical socket is provided on the underside of the housing of the mattress extender 10.
  • the remote control may be replaced by a wireless transmitter and a wireless receiver (wireless remote control).
  • An elongated opening 32 extends along the rear portion of the mattress extender 10.
  • the opening 32 is configured to receive the sheet being rolled on a roller placed inside the repositioning device (see Fig. 3A ).
  • the thickness of the opening 32 is preferably 8 mm or less.
  • the mounting structures 16' of the mattress extender 10 can be omitted.
  • Fig. 2A illustrates a side view of a health care bed repositioning system 2 according to the invention.
  • the health care bed repositioning system 2 corresponds to the one shown in and explained with reference to Fig. 1B .
  • the health care bed 12 comprises a mattrass 4 covered by a sheet 14 having edges provided with a guiding structure 22.
  • the guiding structure 22 is made by surrounding a cord or robe by the sheet 14, providing a double layer sheet portion and stitching the double layer sheet portion together.
  • the guiding structure 22 is a beaded edge.
  • the sheet 14 is slidably attached to the mounting structures 16 of the brackets 18 by means of the guiding structure 22.
  • the mattrass 4 is arranged adjacent to the mattress extender 10.
  • Fig. 2B illustrates a mattress extender 10 according to the invention.
  • the mattress extender 10 corresponds to the one shown in and explained with reference to Fig. 1B and Fig. 2A .
  • the mattress extender 10 comprises a housing 30 having a first side portion 31 and a second side portion 31'.
  • the first side portion 31 and the second side portion 31' are made from a soft material.
  • the first side portion 31 and the second side portion 31' are made from a foam material such as foam rubber.
  • the mattress extender 10 comprises top portion 28 made from a soft material.
  • the top portion 28 is made from a foam material.
  • the top portion 28 may be a separate member that is attached to the housing 30. In one embodiment, however, the top portion 28 is an integrated part of the housing 30.
  • Mounting members 24 are attached to the rear portion of the housing and to the end surface of each of the side portions 31, 31'.
  • the mounting members 24 are arranged and configured to attach the mattress extender 10 to an underlying structure.
  • a control member 26 is provided at the first side portion 31.
  • a mounting structure 16' is arranged at the first side portion 31.
  • the mounting structures 16' is arranged and configured to receive a guiding structure.
  • the rear side of the housing is provided with an elongated opening 32 that is arranged and configured to receive the sheet 14 of a health care bed 12.
  • Fig. 3A illustrates a mattress extender 10 according to the invention.
  • the mattress extender 10 corresponds to the one shown in and explained with reference to Fig. 1B and Fig. 2A .
  • the mattress extender 10 comprises a housing 30 that is partly surrounded by an outer portion 33 from a soft material, preferably a foam material such as foam rubber.
  • the mounting members 24 are designed to prevent the mattress extender 10 from moving when placed in a bed as shown in and explained with reference to Fig. 2A .
  • An elongated opening 32 is provided in the housing 30 of the mattress extender 10.
  • the opening 32 extends along the length of the housing 30.
  • the mattress extender 10 comprises a motor (not shown) that is electrically operated and controlled by a remote control 62.
  • the remote control 62 is connected to a cable 60' provided with an electrical connection member 66 in its distal end.
  • the mattress extender 10 comprises a power cable 60 provided with an electrical plug 64 designed to be connected to the mains.
  • the mattress extender 10 comprises an electrical socket 68 arranged and configured to receive the electrical connection member 66' of the cable 60' and the electrical connection member 66 of the power cable 60.
  • the socket 68 is electrically connected to the motor by means of a cable.
  • the electrical socket is provided on the underside of the housing 30.
  • the remote control 62 may be replaced by a wireless transmitter and a wireless receiver (wireless remote control).
  • Fig. 3B illustrates a cross-sectional view of the mattress extender 10 shown in Fig. 3A .
  • the mattress extender 10 basically corresponds to the one shown in Fig. 3A .
  • a roller 34 is arranged inside the housing 30.
  • the roller 34 is rotatably mounted and driven by a motor that is integrated into the roller 34 (see Fig. 3C ).
  • the roller 34 comprises a centrally arranged cylindrical portion extending between two tracked portion 36, 36'.
  • the tracked portions 36, 36' are configured to receive the guiding structure of the sheet (see Fig. 4A ).
  • the mattress extender 10 comprises an outer portion 33 that is preferably made from a soft material (e.g. a foam material).
  • the outer portion 33 may comprise top portion formed as a separate member that is attached to the housing 30 or to side portions.
  • the outer portion 33 may be an integrated part of the housing 30.
  • Fig. 3C illustrates a cross-sectional view of a mattress extender according to the invention.
  • the roller 34 comprises a motor 50 that is integrated in the roller 34.
  • the motor 50 comprises a first shaft 48 extending through the end portion of the roller 34.
  • the roller 34 comprises another shaft 46 extending through the opposite end portion of the roller 34.
  • the motor 50 is fixed to the first shaft 48.
  • the first shaft 48 is attached to a structure outside the roller 34. Accordingly, the motor housing remains fixed during operation of the motor 50.
  • the motor 50 comprises a shaft that is fixed to a rotatably shaft 44 that is fixed to the inside of the wall of the roller 34. Therefore, the motor 50 will rotate the roller 34 when being activated.
  • the motor 50 is electrically operated and controlled by a control member as the one shown in Fig. 3A and Fig. 3B , or a wired remote control electrically or wirelessly connected thereto.
  • a control box 56 is arranged inside the roller 34 adjacent to the motor 50.
  • Fig. 4A illustrates a sheet 14 of a health care bed repositioning system according to the invention.
  • the sheet 14 comprises two rows of spaced guiding structures 22 extending along the length of the sheet 14.
  • the guiding structures 22 are provided on each of the long edges of the sheet 14.
  • the guiding structures 22 may be formed as beaded edge by way of example.
  • Each of the guiding structures 22 may alternatively be designed as a single elongated, flexible structure.
  • the guiding structures 22 is made by surrounding a cord or robe by the sheet, providing a double layer sheet portion and stitching the double layer sheet portion together.
  • Fig. 4B illustrates a prior art health care bed repositioning system comprising a health care bed 112.
  • a patient 100 is positioned on the health care bed 112.
  • the health care bed 112 comprises a mattress 104 surrounded by a frame 105.
  • a prior art repositioning device 108 is integrated in the head end of the mattress 104.
  • Fig. 5A illustrates a mounting structure 16 of a health care bed repositioning system according to the invention.
  • the mounting structure 16 comprises a slot 38 allowing a sheet to pass through the slot 38.
  • the mounting structure 16 comprises a through-going bore 40 arranged and configured to receive and guide a guiding structure as the one shown in and explained with reference to Fig. 2A or Fig. 4A .
  • Fig. 5B illustrates the mounting structure 16 shown in Fig. 5A attached to a bracket 18.
  • the bracket 18 is L-shaped and comprises a bracket base plate 19.
  • the bracket base plate 19 may be provided with a bore or an attachment structure (not shown) in order to ease the attachment of the bracket base plate 19 to a section (as shown in Fig. 1B ).
  • the bracket base plate 19 may be welded, glued or fixed by means of mechanical attachment structures to a section or another structure.
  • Fig. 5C illustrates how a sheet 14 is attached to a mounting structure 16 as the one shown in Fig. 5A and Fig. 5B .
  • the sheet 14 is provided with a guiding structure 22 extending along the edge of the sheet 14.
  • the guiding structure 22 engages the bore 40 of the mounting structure 16 while the sheet 14 provided next to the guiding structure 22 passes through the slot of the mounting structure 16.
  • the mounting structure 16 ensures that the sheet 14 is remained in a configuration, in which it can be rolled on the roller of the repositioning device of the health care bed repositioning system.
  • Fig. 6A illustrates the main components of a mattress extender 10 corresponding to the one shown in Fig. 3 .
  • Fig. 6B illustrates the components shown in Fig. 6A , however, in larger detail.
  • the mattress extender 10 comprises a housing 30 provided with an elongated opening 32 that extends along the rear portion of the mattress extender 10.
  • the housing 30 comprises a top portion 28 constituting a lid that is moveably attached (e.g. rotatably attached) to the remaining portion of the housing 30.
  • the mattress extender 10 comprises an outer portion 33 made from a soft material.
  • the outer portion 33 is designed to cover the front side, the top side and the side portions of the housing 30.
  • a bore 40, 40' is provided in each of the side portions of the housing 30.
  • the mattress extender 10 comprises a roller 34 that comprises a motor 50 that is integrated in the roller 34.
  • the motor 50 may be a gear motor.
  • the motor comprises a first shaft 48 extending through the end portion of the roller 34.
  • the roller 34 comprises another shaft 46 extending through the opposite end portion of the roller 34.
  • the motor 50 comprises a motor housing that is fixed to the first shaft 48.
  • the first shaft 48 is mechanically connected to the housing 30 of the mattress extender 10.
  • the motor housing is fixed to the housing 30 of the mattress extender 10. Accordingly, the motor housing remains fixed during operation of the motor 50.
  • the motor 50 comprises a shaft that is fixed to a rotatably shaft 44 that is fixed to the inside of the wall of the roller 34. Therefore, the motor 50 will rotate the roller 34 when being activated.
  • the opening 32 is configured to receive the sheet being rolled on a roller 34.
  • the motor 50 is electrically operated and controlled by a remote control 62.
  • the remote control 62 is connected to a cable 60' provided with an electrical connection member 66 in its distal end.
  • the mattress extender 10 comprises an electrical socket 68 arranged and configured to receive the electrical connection member 66' of the cable 60' and the electrical connection member 66' of the power cable 60.
  • the electrical socket 68 is provided on the underside of the housing 30.
  • the remote control 62 may be replaced by a wireless transmitter and a wireless receiver (wireless remote control).
  • An electrical plug 64 is arranged in the end of the cable 60.
  • the electrical plug 64 is designed to be connected to the mains. Accordingly, the mattress extender 10 can be powered through the cable 60.
  • the motor 50 may be an electrical gear motor.
  • the roller 34 comprises another shaft 46 extending through the opposite end portion of the roller 34.
  • the roller 34 comprises a centrally arranged cylindrical portion extending between two tracked portion 36, 36'.
  • the tracked portions 36, 36' are configured to receive the guiding structure of a sheet (see Fig. 4A ).
  • the motor comprises a connection shaft 58 extending from the motor housing.
  • a connection shaft is connected to a rotatably shaft 44 that is fixed to the inside of the wall of the roller 34. Accordingly, the motor 50 will rotate the roller 34 when being activated.
  • the motor 50 comprises a motor housing that is fixed to the first shaft 48.
  • the first shaft 48 is connected to the housing 30 of the mattress extender 10 and thus the motor housing is fixed to the housing 30 of the mattress extender 10. Therefore, the motor housing remains fixed during operation of the motor 50.
  • a coupling may be arranged next to the housing of the motor.
  • the coupling may be arranged and configured to couple the motor 50 to the first shaft 48 and to uncouple the motor 50 from the first shaft 48, respectively.
  • a control box 56 is arranged next to the motor 50.
  • the control box 56 comprises the electrical components required to control the motor 50.
  • the control box 56 comprises an integrated power supply.
  • Fig. 7A illustrates a perspective side view of mattress extender 10 according to the invention used in a health care bed repositioning system 2 according to the invention.
  • Fig. 7B illustrates a side view of the mattress extender 10 and the health care bed 12 shown in Fig. 7A .
  • Fig. 8A illustrates a perspective top view of the mattress extender 10 and health care bed repositioning system 2 shown in Fig. 7A .
  • the health care bed repositioning system 2 comprises a health care bed 12 having several sections 20', 20" placed on a support portion 9.
  • a side rail 52 extends along each of the two side portions of the health care bed 12.
  • the section 20" arranged closes to the head end of the health care bed 12. This section 20" is arranged in an inclined configuration. Rotation of this section 20" relative to the support portion 9 may either be done by means of manual means or by means of an actuator (e.g. an electric actuator).
  • a mattress 4 is placed on the sections 20', 20".
  • the mattress 4 is placed on the sections 20', 20" is attached to the sections 20', 20" by means of mounting structures 16, wherein each mounting structure 16 is attached to or integrated into a bracket 18 that is fixed to one of the sections 20', 20".
  • Fig. 7A it can be seen that the mattress extender 10 is attached to the outermost section 20" by means of mounting members 24 attached to and extending from the rear side of the mattress extender 10.
  • the mounting members 24 are attached to the outermost section 20".
  • the mounting members 24 may be brought into engagement with the outermost section 20" or one or more structures attached to the outermost section 20".
  • the mattress extender 10 is arranged next to and bears against the head end portion of the mattress 4.
  • the mattress extender 10 has the same height (thickness) as the mattress 4 in order to make it as comfortable as possible for patients to use the health care bed 12.
  • a sheet 14 is placed on and attached to the mattress 4.
  • Each of the two long side edges of the sheet 14 are secure to mounting structures 16 arranged along the side portions of the mattress 4.
  • the health care bed repositioning system 2 is ready to be used.
  • the mattress extender 10 comprises a housing provided with an elongated opening 32 that extends along the entire length the rear portion of the mattress extender 10.
  • the opening 32 is configured to receive the sheet 14 in such a manner that the sheet 12 is being rolled on a roller placed inside the repositioning device (see Fig. 3A , Fig. 6A and Fig. 6B ).
  • the sheet 14 Upon rotation of the roller, the sheet 14 is pulled toward the head end of the bed 12 with enough pulling force to pull a patient supported on the sheet 14.
  • the use of manual handling for moving the patient can be minimised.
  • the clutch mechanism 101 comprises a spindle 103 which is set in rotation by a motor or another drive mechanism 106.
  • a ratchet 115 is incorporated so it does not rotate with the motor or another drive mechanism 106.
  • the ratchet 115 can hold the clutch nut's 114 rotation in relation to the motor's or drive mechanism's 106 and thus the spindle's 103 rotation.
  • the ratchet 115 can, for example, use ratchet points 113 to hold the clutch nut's 114 rotation.
  • the receiver 102 can be connected with a pipe or another equivalent component in the repositioning system. During disconnection, the slanted angle of the teeth 122 of the receiver 102 and the slanted angle of the teeth 111 of the clutch nut 104 are used to push the ratchet points 113 of the clutch nut 104 back into the ratchet 115. Thus, the clutch mechanism 101 is in a disconnected position. In the disconnected position, the receiver 102 can rotate freely on the rotation point 107 of the spindle 103.

Landscapes

  • Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Invalid Beds And Related Equipment (AREA)
EP23191448.2A 2022-08-16 2023-08-15 Matratzenstrecker und system zur neupositionierung eines gesundheitspflegebetts Pending EP4327793A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA202200764A DK202200764A1 (en) 2022-08-16 2022-08-16 Mattress Extender and Health Care Bed Repositioning System
DKPA202330147 2023-08-09

Publications (1)

Publication Number Publication Date
EP4327793A1 true EP4327793A1 (de) 2024-02-28

Family

ID=87575790

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23191448.2A Pending EP4327793A1 (de) 2022-08-16 2023-08-15 Matratzenstrecker und system zur neupositionierung eines gesundheitspflegebetts

Country Status (1)

Country Link
EP (1) EP4327793A1 (de)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016022558A1 (en) 2014-08-04 2016-02-11 Hillenbrand Management Company Llc Patient repositioning system with hand crank capability
US20170231847A1 (en) * 2014-08-04 2017-08-17 Hillenbrand Management Company Llc Patient Repositioning System For Bariatric Bed
CN109199750A (zh) * 2018-10-25 2019-01-15 刘尊群 滚筒式床上人体复位机

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016022558A1 (en) 2014-08-04 2016-02-11 Hillenbrand Management Company Llc Patient repositioning system with hand crank capability
US20170231847A1 (en) * 2014-08-04 2017-08-17 Hillenbrand Management Company Llc Patient Repositioning System For Bariatric Bed
CN109199750A (zh) * 2018-10-25 2019-01-15 刘尊群 滚筒式床上人体复位机

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