• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention provides a treatment table (1) comprising a support base (2) for resting on the floor, a treatment platform (3) for the patient, a lifting system (4) with at least one lifting arm (5, 8) for moving the treatment platform (3), and a safety system (14) to prevent body parts from being pinched. The support base (2), the treatment platform (3) and the at least one lifting arm (5, 8) are electrically insulated from each other. The safety system (14) is configured to detect a change in an electrical capacitance (C co) associated with at least one of the support base (2), the treatment platform (3) and the at least one lifting arm (5,8 ), and for generating a safety alarm signal when at least one capacitance (C co) associated with at least one of the support base (2), the treatment platform (3) and the at least one lifting arm (5, 8) changes .
    公开号:BE1026502B1
    申请号:E20195484
    申请日:2019-07-24
    公开日:2020-09-10
    发明作者:Piet Jacobus Wijnmaalen
    申请人:Gymna Uniphy；
    IPC主号:
    专利说明:

    Technical field The present invention relates to a treatment table which includes a safety system to prevent body parts or other objects from being trapped between the support base, the treatment platform and the one or more lifting arms of the treatment table while the treatment platform is being moved forwards. relative to the support base of the treatment table.
    Background Art A treatment table with a safety system to prevent body parts or other objects from becoming trapped between the support base, the treatment platform and the lifting arms of the treatment table is known, for example, from WO 03 / 088885A1. The safety system of this treatment table includes a variety of infrared heaters and detectors. If a body part or other object passes through an infrared beam passing from one of the radiators to one of the detectors, the body part or object is detected and the movement of the treatment platform relative to the support base is stopped.
    However, a treatment table with such a safety system has several drawbacks. One disadvantage is that parts of the body or other objects can still pass between the infrared rays, and thus remain undetected, if the body part or object is small enough to pass between the infrared rays, for example. The situation can be improved by increasing the number of emitters and detectors, but this has the disadvantage that the safety system becomes more complex and consumes more energy. Another disadvantage is that parts of the body or other objects can be detected along the full length of the infrared rays, even if there is not necessarily an immediate danger of the body part or object being pinched. In such a case, the movement of the treatment platform relative to the support base is stopped without being really necessary.
    Statement of the invention
    The present invention aims to provide a treatment table with a safety system that is safer to use.
    This object is achieved according to the invention with a treatment table having the technical characteristics of the first independent claim.
    Thus, the present invention provides a treatment table for use in physiotherapy treatment of a patient. The treatment table includes a support base for supporting the treatment table on the floor. The treatment table includes a treatment platform for supporting the patient. The treatment table includes a lifting system for moving the treatment platform in a height direction relative to the support base. The lifting system includes at least one lifting arm. The at least one lifting arm is tiltably connected to the support base and to the treatment platform in such a way that the tilting of the at least one lifting arm displaces the treatment platform relative to the support base in the height direction. The treatment table includes a safety system to prevent body parts or other objects from being trapped between the support base, the treatment platform and / or the at least one lifting arm. The support base, treatment platform and at least one lifting arm are electrically insulated from each other. The safety system is configured to detect a change in an electrical capacity associated with at least one of the support base, the treatment platform and the at least one lifting arm. The safety system is configured to generate a safety alarm signal when at least one electrical capacitance associated with at least one of the support base, the treatment platform and the at least one lifting arm changes.
    The treatment table according to the present invention offers the advantage that the support base, the treatment platform and / or the at least one lifting arm are monitored in their entirety for contact with a body part or other object, such that no such contact goes undetected. This increases the safety of the treatment table according to the present invention. Moreover, the treatment table of the present invention only requires monitoring only a limited number of components of the treatment table for contact with a body part or other object, which reduces complexity and energy consumption of the treatment table.
    In one embodiment of the treatment table of the present invention, the safety system is configured to detect a change in an electrical capacitance associated with the support base, treatment platform and the at least one lifting arm. The safety system is configured to generate a safety alarm signal when at least one electrical capacitance associated with the support base, treatment platform and the at least one lifting arm changes.
    This embodiment offers the advantage that the safety system monitors the support base, the treatment platform and the at least one lifting arm, and that contact of a body part or other object with any of these components can be detected by the safety system. This increases the safety of the treatment table of the present invention without increasing the complexity too much, as it only requires monitoring of a limited number of components.
    In one embodiment of the treatment table according to the present invention, the safety system is configured to detect a change in an electrical capacitance associated with at least one of the support base, the treatment platform and the at least one lifting arm while moving the treatment platform. relative to the support base in the height direction. Preferably, the safety system is configured to detect a change in an electrical capacitance associated with at least one of the support base, the treatment platform and the at least one lifting arm while moving the treatment platform in the direction of the support base in the height direction. .
    This embodiment has the advantage that the safety system monitors the support base, treatment platform and / or the at least one lifting arm for contact with a body part or other object only when the lifting system moves the treatment platform relative to the support base in the height direction. Thereby, the energy consumption of the treatment table according to the present invention is reduced. It also prevents safety alarms from being generated in conditions where there is no risk of a body part or other object becoming trapped between the support base, the treatment platform and the at least one lifting arm.
    In one embodiment of the treatment table according to the present invention, the safety system is configured to detect a change in an electrical capacity associated with at least one of the support base, the treatment platform and the at least one lifting arm when the treatment platform is below certain distance above the support base in the height direction.
    This embodiment offers the advantage that the safety system only monitors the support base, treatment platform and / or the at least one lifting arm for contact with a body part or other object when the treatment platform is close enough to the support base that there is a risk of trapping of the body part or object between the support base, the treatment platform and / or the at least one lifting arm.
    Thereby, the energy consumption of the treatment table according to the present invention is reduced. It also prevents safety alarms from being generated in conditions where there is no risk of body parts getting trapped between the support base, treatment platform and the at least one lifting arm.
    In one embodiment of the treatment table according to the present invention, the lifting system comprises at least one actuator for driving the tilting of the at least one lifting arm, the safety system being operatively connected to the at least one actuator, and the safety system being configured for stopping the at least one actuator when the safety alarm signal is generated.
    This embodiment offers the advantage that the movement of the treatment platform relative to the support base in the height direction is stopped when a safety alarm signal is generated upon contact of a body part or other object with the support base, the treatment platform or the at least one lifting arm. This further enhances the safety of the treatment table according to the present invention, since injuries or damage caused by the further displacement of the treatment platform can be avoided in this way.
    In one embodiment of the treatment table according to the present invention, the safety system is configured to activate the at least one actuator for a predetermined period of time to move the treatment platform upward relative to the support base in the height direction after the at least one actuator has been stopped by the safety system when the safety alarm signal is generated.
    This embodiment offers the advantage that a body part or other object that may have become trapped between the treatment platform, the support base and the at least one lifting arm is released by the upward movement of the treatment platform relative to the support base in the height direction after contact of the treatment platform. body part or object with the support base, treatment platform or at least one lifting arm has been detected. This further increases the safety of the treatment table according to the present invention.
    In one embodiment of the treatment table according to the present invention, the at least one lifting arm is connected to the support base and to the treatment platform by means of hinges in an electrically insulating material to electrically isolate the support base, the treatment platform and the at least one lifting arm at least relative to each other. Preferably the electrically insulating material is a plastic.
    In one embodiment of the treatment table according to the present invention, the safety system includes a voltage application circuit comprising an alternating current supply and a fixed capacitor having a predetermined capacitance. A first pole of the power supply is electrically connected to a first terminal contact of the fixed capacitor. A second terminal of the fixed capacitor is electrically connected to at least one of the support base, the treatment platform and the at least one lifting arm. A second pole of the power supply is electrically connected to a component of the treatment table that is electrically connected to ground potential. The safety system further includes a voltage detection circuit and a control unit. The voltage detection circuit is configured to detect a change in a voltage signal across the fixed capacitor.
    An input of the voltage detection circuit is electrically connected to the second terminal of the fixed capacitor. An output of the voltage sensing circuit is electrically connected to the control unit. The controller is configured to generate the safety alarm signal when the change in the voltage signal detected by the voltage sensing circuit is outside a predetermined range.
    In one embodiment of the treatment table according to the present invention, the second terminal of the fixed capacitor is electrically connected to the support base, the treatment platform and the at least one lifting arm.
    In one embodiment of the treatment table according to the present invention, one of the support base, the treatment platform and the at least one lifting arm is the component of the treatment table that is electrically connected to the ground potential and to the second pole of the power supply. The second terminal of the fixed capacitor is electrically connected to at least one member of the group of the support base, the treatment platform and the at least one lifting arm that is not connected to ground potential.
    In one embodiment of the treatment table according to the present invention, the support base is the component of the treatment table that is electrically connected to ground potential.
    In one embodiment of the treatment table according to the present invention, the voltage detection circuit is configured for double-ended rectification and RMS peak detection of the voltage signal at the input of the voltage detection circuit.
    In an embodiment of the treatment table according to the present invention, the voltage detection circuit is further configured to filter low frequency noise and high frequency noise from the voltage signal at the input of the voltage detection circuit.
    Brief description of the drawings The invention will be further elucidated by means of the following description and the accompanying figures.
    Figure 1 shows a treatment table according to an embodiment of the present invention.
    Figure 2 shows the treatment table of Figure 1 with a hand coming into contact with the treatment platform.
    Figure 3 shows a schematic of the circuit for applying a voltage of the V safety system of a treatment table according to an embodiment of the present invention.
    Figure 4 shows a schematic of the voltage application circuitry of the safety system of a treatment table according to an embodiment of the present invention.
    Figure 5 shows a schematic of the voltage sensing circuitry of the treatment table safety system according to an embodiment of the present invention.
    Embodiments of the Invention The present invention will be described with reference to certain embodiments and with reference to certain drawings, but the invention is not limited thereto, and is limited only by the claims. The drawings described are only schematic and are non-limiting. In the drawings, the size of some elements may be enlarged for illustrative purposes and not drawn to scale. The dimensions and relative dimensions do not necessarily correspond to actual practical embodiments of the invention.
    Furthermore, the terms first, second, third, and the like, are used in the specification and claims to distinguish between similar elements, and not necessarily to describe a sequential or chronological order. The terms are interchangeable in appropriate circumstances, and the embodiments of the invention may function in sequences other than those described or illustrated herein.
    Furthermore, the terms top, bottom, top, bottom, and the like are used in the description and claims for descriptive purposes, and not necessarily to describe relative positions. The terms so used are interchangeable in appropriate circumstances, and the embodiments of the invention described herein may function in orientations other than those described or illustrated herein.
    The term "comprising", used in the claims, is not to be construed as limited to the means listed below; it does not exclude other elements or steps. The term is to be interpreted as specifying the presence of said properties, numbers, steps or components as indicated, but does not preclude the presence or addition of one or more other properties, numbers, steps or components, or groups thereof. from. Thus, the scope of the expression 'a device comprising means A and B' should not be limited to devices consisting only of components A and B. It means that for the purposes of the present invention, the only relevant components of the device A and B to be.
    Figure 1 shows a side view of a treatment table 1 according to an embodiment of the present invention. At the bottom, the treatment table 1 comprises a support base 2 by means of which the treatment table 1 rests on the ground. At the top, the treatment table 1 comprises a treatment platform 3 for supporting a patient on the treatment table 1. The treatment platform 3 is provided with cushions 32 for the comfort of the patient.
    Between the treatment platform 3 and the support base 2, the treatment table 1 comprises a lifting system 4 with a first lifting arm 5 and a second lifting arm 8 for moving the treatment platform 3 relative to the support base 2 in the height direction H. The lifting arms 5, 8 are tiltable connected to the support base 2 at their bottom end and to the treatment platform 3 at their top end by means of hinges
    11. In this way, tilting the lifting arms 5, 8 with respect to the support base 2 leads to displacement of the treatment platform 3 relative to the support base 2 in the height direction H. Thereby, the treatment platform 3 remains horizontal, since the treatment platform 3 is tiltable. is connected to the lifting arms 5, 8. In the embodiment of the treatment table 1 shown in Figure 1, two lifting arms 5, 8 are used which are arranged parallel to each other, thus forming a parallelogram. However, it should be clear to the skilled person that the lifting system 4 can also be implemented with more or with fewer lifting arms 5, 8 and / or using a different arrangement of the lifting arms 5, 8, such as, for example, a trapezoidal arrangement or a scissor arrangement.
    The lifting system 4 further comprises an actuator 12 for driving the tilting of the lifting arms 5, 8. The actuator 12 is connected to the lifting arms 5, 8 via an actuator connector 13 which is connected to flanges 6, 9 on the lifting arms 5, 8 This configuration allows a single actuator 12 to drive the tilting of both lifting arms 5, 8 simultaneously. However, it is also possible to use one or more actuators for driving a single lifting arm 5, 8.
    The treatment table 1 also includes a safety system 14 to prevent body parts or other objects from being trapped between the support base 2, the treatment platform 3 and / or the lifting arms 5,8 during the movement of the treatment platform 3 relative to the support base 2 in the height direction. H. Such a situation is shown, for example, in Figure 2, where a hand 31 comes into contact with the treatment platform 3 and runs the risk of becoming trapped between the treatment platform 3 and the first lifting arm 5.
    In order to be able to detect that a body part or other object is in contact with the support base 2, the treatment platform 3 or the lifting arms 5, 8, the safety system 14 monitors the electrical capacitance C associated with the support base 2, the treatment platform 3 and the lift arms 5, 8 for changes caused by said contact. If such a change is detected, the security system 14 generates a security alarm signal. In response to the safety alarm signal, the safety system 14 instructs the actuator 12 of the lifting system 4, to which it is operatively connected, to stop the movement of the treatment platform 3 with respect to the support base 2 in the height direction H, in order to get trapped. prevent the body part or object coming into contact with the support base 2, the treatment platform 3 or one of the lifting arms 5, 8. Once the movement of the treatment platform 3 has been stopped, the safety system 14 can control the actuator 12 of the lifting system. 4 instructing the treatment platform 3 to move for a predetermined period of time in the direction opposite to the direction in which it was moved prior to contact with the body part or object, in order to avoid the body part or object that has become trapped at the contact with the support base 2, the treatment platform 3 and / or one of the lifting arms 5, 8 can be released again. The security system 14 may also take other actions in response to the security alarm signal, such as, for example, sounding an alarm signal.
    For treatment tables 1 with a single lifting arm 5, 8 or a plurality of lifting arms 5, 8 aligned substantially parallel to each other, such as the treatment table 1 of Figure 1, there is a risk of a body part or other object becoming trapped between the support base 2, the treatment platform 3 and / or the lifting arms 5,8 when moving the treatment platform 3 relative to the support base 2 in the height direction H mainly when the treatment platform 3 moves in the direction of the support base 2, and risk increases as the treatment platform 3 gets closer to the support base 2. Therefore, it is advantageous to activate the safety system 14 only when the treatment platform 3 moves in the direction of the support base 2 in the height direction H, and / or when the treatment platform 3 is at a predetermined distance above the support base 2 in the height direction H .
    The safety system 14 comprises a voltage application circuit 15, the operating principle of which will be explained by means of the simplified representation of Figure 3. The voltage application circuit 15 comprises an alternating current supply 16 and a fixed capacitor C; with a predetermined capacitance Cz The fixed capacitor Ctx is connected in series with a “table” capacitor Co which is formed by the support base 2, the treatment platform 3 and the lifting arms 5, 8. If the AC power supply applies an AC voltage signal to the fixed capacitor C, and the table capacitor C, then a change in the voltage signal across the fixed capacitor Cx indicates a change in the electrical capacitor C ... caused by the contact of a body part or other object with the support base 2, the treatment platform 3 and / or the lifting arms 5, 8, since the fixed capacitor C i has a fixed, predetermined electrical capacitance C 1.
    In the embodiment of the treatment table 1 of Figure 1, the circuit for applying a voltage 15, as seen in Figures 1 and 4, is formed by electrically connecting a first pole 17 of the power supply 16 to a first terminal 19 of the fixed capacitor Cx. A second terminal 20 of the fixed capacitor Cx is electrically connected to the treatment platform 3 by means of electrical wire 33, to the first lifting arm 5 by means of electrical wire 7, and to the second lifting arm 8 by means of electrical wire 10, the said electric wires 7, 10, 33 are shown in Figure 1. A second pole 18 of the power supply 16 is electrically connected to the support base 2. The support base 2 is electrically connected to a ground potential G, as shown in Figure 4. The support base 2, the treatment platform 3 and the lifting arms 5, 8 are also electrically insulated from each other. Therefore, the hinges 11 connecting the lifting arms 5, 8 to the support base 2 and to the treatment platform 3 are made of an electrically insulating material, for example a plastic material. In this configuration, the table capacitor C is formed by the electrical capacitor formed between the treatment platform 3 and the support base 2, the electrical capacitor formed between the first lifting arm 5 and the support base 2, and the electrical capacitor formed between the second lifting arm 8 and the support base 2, which are all connected in parallel. Thus, in this configuration, the support base 2 is used as a reference, and not itself monitored by the safety system 14 for contact with a body part or other object. However, it should be understood by those skilled in the art that other components of the treatment table 1 can be used as a reference with ground potential G, such that the support base 2 can also be monitored by the safety system 14 for contact with a body part or other object.
    If a hand 31 then, for example, comes into contact with the treatment platform 3 and runs the risk of becoming trapped between the treatment platform 3 and the first lifting arm 5, as shown in Figure 2, an additional branch is formed in the circuit for creating a voltage 15, in parallel with the table capacitor Ce, as shown in Figure 4. This tap has an electrical capacitance C, which is associated with the hand 31 contacting the treatment platform 3. The additional tap changes the electrical capacitance in series with the fixed capacitor Cx, such that the voltage signal across the fixed capacitor Cx changes and the contact of the hand 31 with the treatment platform 3 is detected.
    The change in the voltage signal across the fixed capacitor Cx is measured by means of a voltage detection circuit 21 whose input 22 is connected to the second terminal 20 of the fixed capacitor Cx, as shown in Figure 4. The voltage detection circuit 21 is configured to converting the AC voltage signal across the fixed capacitor C {to a DC voltage signal that quantifies the change in the AC voltage signal across the fixed capacitor Cx.
    Therefore, the voltage detection circuit 21, as shown schematically in Figure 5, includes a passive low pass filter 24 for filtering out the 50 / 60Hz mains frequency, which will not affect the high frequency.
    The passive low-pass filter 24 is followed by an active high-pass filter 25 to eliminate any noise coming from the AC power supply 16. The active high-pass filter 25 is followed by an active low-pass filter 26 to further reduce the low-frequency noise. The active low-pass filter 26 is followed by a double-sided bridge rectifier 27 to convert the AC signal to a pulsed DC voltage signal. The double ended bridge rectifier 27 is followed by an RMS peak detector 28 to produce an averaged DC signal. The RMS peak detector 28 is followed by an integrator 29 to filter out the remaining small AC ripple.
    References 1 treatment table 35 8 second lift arm 2 support base 9 flange 3 treatment platform 10 electrical wire 4 lift system 11 hinge 5 first lift arm 12 actuator 6 flange 40 13 actuator connector 7 electrical wire 14 safety system
    15 circuit for 27 double-sided bridge rectifier voltage application 15 28 RMS peak detector 16 AC power supply 29 integrator 17 first pole 30 control unit 18 second pole 31 manual
    19 first terminal 32 cushion 20 second terminal 20 33 electrical wire 21 voltage detection circuit Ctx fixed capacitor 22 input Co electrical capacitance table
    23 output Ch electric capacitance manual 24 passive low-pass filter G ground potential active high-pass filter 25 H height direction 26 active low-pass filter
    权利要求:
    Claims (13)
    [1]
    A treatment table (1) for use in physiotherapy treatment of a patient, the treatment table (1) comprising: a support base (2) for supporting the treatment table (1) on the floor: a treatment platform (3) for supporting it of the patient; and a lifting system (4) for moving the treatment platform (3) relative to the support base (2) in a height direction (H), the lifting system (4) comprising at least one lifting arm (5, 8) that is tiltably connected with the support base (2) and with the treatment platform (3), in such a way that tilting the at least one lifting arm (5, 8) causes the treatment platform (3) to move relative to the support base (2) in the height direction (H); a safety system (14) to prevent body parts or other objects from being trapped between the support base (2), the treatment platform (3) and / or the at least one lifting arm (5, 8), characterized in that the support base (2) , the treatment platform (3) and the at least one lifting arm (5, 8) are electrically isolated from each other, and the safety system (14) is configured to detect a change in an electrical capacity (Co) that is associated with at least one of the support base (2), the treatment platform (3) and the at least one lifting arm (5, 8), and for generating a safety alarm signal when at least one capacitance (Co) associated with at least one of the support base (2), the treatment platform (3) and the at least one lifting arm (5, 8) changes.
    [2]
    The treatment table (1) according to claim 1, wherein the safety system (14) is configured to detect a change in an electrical capacitance (Co) associated with the support base (2), the treatment platform (3) and the at least one lifting arm (5, 8), and for generating a safety alarm signal when at least one capacitance (Co) associated with the support base (2), the treatment platform (3) and the at least one lifting arm (5, 8 ) changes.
    [3]
    The treatment table (1) according to claim 1 or 2, wherein the safety system (14) is configured to detect a change in an electrical capacitance (Co) associated with at least one of the support base (2), the treatment platform (3) and the at least one lifting arm (5, 8) while moving the treatment platform (3) with respect to the support base (2) in the height direction (H).
    [4]
    The treatment table (1) according to any of claims 1-3, wherein the safety system (14) is configured to detect a change in an electrical capacitance (Co) associated with at least one of the support bases. (2), the treatment platform (3) and the at least one lifting arm (5, 8) when the treatment platform (3) is located below a predetermined distance above the support base (2) in the height direction (H).
    [5]
    The treatment table (1) according to any of the claims 1-4, wherein the lifting system (4) comprises at least one actuator (12) for driving the tilting of the at least one lifting arm (5, 8) wherein the safety system (14) is operatively connected to the at least one actuator (12), and wherein the safety system (14) is configured to shut down the at least one actuator (12) when the safety alarm signal is generated.
    [6]
    The treatment table (1) according to claim 5, wherein the safety system (14) is configured to activate the at least one actuator (12) for a predetermined period of time to move the treatment platform (3) upward relative to the support base (2) in the height direction (H) after the at least one actuator (12) is stopped by the safety system (14) when the safety alarm signal is generated.
    [7]
    The treatment table (1) according to any one of claims 1-6, wherein the at least one lifting arm (5, 8) is connected to the support base (2) and to the treatment platform (3) by means of a hinge. (11) in an electrically insulating material, preferably a plastic material, for electrically insulating the support base (2), the treatment platform (3) and the at least one lifting arm (5, 8) from each other.
    [8]
    The treatment table (1) according to any one of claims 1 to 7, wherein the safety system (14) comprises a circuit for applying a voltage (15), which includes an AC supply (16) and a fixed capacitor (Cx ) having a predetermined capacitance, wherein a first pole (17) of the power supply (16) is electrically connected to a first terminal contact (19) of the fixed capacitor (Ctx), wherein a second terminal contact (20) of the fixed capacitor (Cx) is electrically connected to at least one of the support base (2), the treatment platform (3) and the at least one lifting arm (5, 8), a second pole (18) of the power supply (16) being electrically connected is with a component of the treatment table (1) that is electrically connected to a ground potential (G), the safety system (14) further comprising a voltage detection circuit (21) and a control unit (30), the voltage detection circuit (21) configured is for detecting a change in a voltage signal across the fixed capacitor (Cx), an input (22) of the voltage sensing circuit (21) being electrically connected to the second terminal (20) of the fixed capacitor (Cx), where a output (23) of the voltage detection circuit (21) is electrically connected to the control unit (30), the control unit (30) being configured to generate the safety alarm signal when the change in the voltage signal detected by the voltage detection circuit (21) is outside a predetermined range.
    [9]
    The treatment table (1) according to claim 8, wherein the second terminal contact (20) of the fixed capacitor (Cx) is electrically connected to the support base (2), the treatment platform (3) and the at least one lifting arm (5, 8). ).
    [10]
    The treatment table (1) according to claim 8, wherein one of the support base (2), the treatment platform (3) and the at least one lifting arm (5, 8) is the component of the treatment table (1) that is electrically connected with the ground potential (G) and with the second pole (18) of the power supply (16), and wherein the second connection contact (20) of the fixed capacitor (Cfix) is electrically connected to at least one member of the group of the support base (2), the treatment platform (3) and the at least one lifting arm (5, 8) not connected to ground potential (G).
    [11]
    The treatment table (1) according to claim 10, wherein the support base (2) is the component of the treatment table (1) that is electrically connected to the ground potential (G).
    [12]
    The treatment table (1) according to any one of claims 8-11, wherein the voltage detection circuit (21) is configured for double-ended rectification and RMS peak detection of the voltage signal at the input (22) of the voltage detection circuit (21).
    [13]
    The treatment table (1) according to any of the claims 8-12, wherein the voltage detection circuit (21) is further configured to filter low frequency noise and high frequency noise from the voltage signal at the input (22) of the voltage detection circuit ( 21).
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    同族专利:
    公开号 | 公开日
    EP3610840A1|2020-02-19|
    BE1026502A1|2020-02-26|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US5774915A|1995-09-13|1998-07-07|Standex International|Patient treatment apparatus|
    SE519289C2|2002-01-29|2003-02-11|Artektron Ab|Safety device for preventing fingers being trapped in furniture with motor driven components, comprises twin conductor generating capacitive electric field|
    EP2055286B1|2002-04-19|2012-06-06|Hill-Rom Services, Inc.|Hospital bed obstacle detection device|CN111407570A|2020-04-01|2020-07-14|庞晖|Rehabilitation device for orthopedic treatment|
    法律状态:
    2020-10-15| FG| Patent granted|Effective date: 20200910 |
    优先权:
    申请号 | 申请日 | 专利标题
    EP18189007.0A|EP3610840A1|2018-08-14|2018-08-14|Treatment couch with safety improvement|
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