EP3634556A1 - Procédé pour faire fonctionner un appareil médical et appareil médical fonctionnant selon ce procédé - Google Patents

Procédé pour faire fonctionner un appareil médical et appareil médical fonctionnant selon ce procédé

Info

Publication number
EP3634556A1
EP3634556A1 EP18826225.7A EP18826225A EP3634556A1 EP 3634556 A1 EP3634556 A1 EP 3634556A1 EP 18826225 A EP18826225 A EP 18826225A EP 3634556 A1 EP3634556 A1 EP 3634556A1
Authority
EP
European Patent Office
Prior art keywords
counter
torque
medical device
knob
dependent
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.)
Withdrawn
Application number
EP18826225.7A
Other languages
German (de)
English (en)
Inventor
Birger Landwehr
Michael Gömann
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.)
Draegerwerk AG and Co KGaA
Original Assignee
Draegerwerk AG and Co KGaA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Draegerwerk AG and Co KGaA filed Critical Draegerwerk AG and Co KGaA
Publication of EP3634556A1 publication Critical patent/EP3634556A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/021—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes operated by electrical means
    • A61M16/022—Control means therefor
    • A61M16/024—Control means therefor including calculation means, e.g. using a processor
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/016—Input arrangements with force or tactile feedback as computer generated output to the user
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/0003—Accessories therefor, e.g. sensors, vibrators, negative pressure
    • A61M2016/0027—Accessories therefor, e.g. sensors, vibrators, negative pressure pressure meter
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/10—Preparation of respiratory gases or vapours
    • A61M16/1005—Preparation of respiratory gases or vapours with O2 features or with parameter measurement
    • A61M2016/102—Measuring a parameter of the content of the delivered gas
    • A61M2016/1025—Measuring a parameter of the content of the delivered gas the O2 concentration
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/332—Force measuring means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/50—General characteristics of the apparatus with microprocessors or computers
    • A61M2205/502—User interfaces, e.g. screens or keyboards

Definitions

  • the invention relates to a method for operating a medical device and a medical device operating according to the method.
  • a rotary knob with an actuation function is a known design feature of Applicant's devices. The function is described for example in DE 195 00 529 C2. Thereafter, to adjust parameters first
  • Rotary movement of the rotary knob is set.
  • the adjustment comes with a
  • Pressing the rotary knob is completed, whereby the set value for the respective parameter is taken over and becomes active for the device or system, for example a respirator.
  • Parameter takes place in a three-step adjustment procedure ("touch-turn-confirm") by selecting the respective parameter by means of the adjuster, by
  • knobs have no mechanical stop.
  • the user can in principle turn the rotary knob indefinitely in both directions (clockwise, counterclockwise). If the maximum adjustable value is reached, no further rotation takes place
  • Watch setting values This also applies to so-called confirmation limits, by means of which the entire settable range is divided into several intervals. At the individual confirmation limits, the user must also press the rotary knob to further adjust the value. For example There are confirmation limits for the inspiratory pressure Pinsp for 30 mbar, 50 mbar and 80 mbar.
  • a knob is generally designed to provide haptic feedback solely via mechanical detents for each incremental change in a parameter. With a slow rotation, the setting value is usually changed by a single increment, with a fast rotation by several increments.
  • a selected parameter can be changed directly and simultaneously with each incremental adjustment of the rotary knob within the scope of a so-called online adjustment.
  • the set value is thus not only active after a final confirmation, but during the adjustment process.
  • This adjustment mode is suitable, for example, in so-called recruiting maneuvers, in which a pressure change in the lung accompanies each continuous incremental adjustment of the respective setting value (for example tidal volume).
  • the user is forced to look back and forth between the medical device and the patient in order to both read the setting value and be able to observe its effect on the patient.
  • Systems and applications with a force feedback in connection with an operator action are established in many areas.
  • An object of the present invention is to improve the operability of a medical device, namely a medical device, in which the
  • Parameters is changeable.
  • this object is achieved by means of an operating method with the features of the independent method claim and by means of a working according to the operating method and insofar intended established medical device with the features of the independent device claim.
  • a counter-torque effective when turning a rotary knob is applied and that the counter-torque is dependent on at least one measured value, in particular a measured value recorded in the medical device and / or a measured value recorded by the medical device.
  • the measured value is, for example, a measured value which is detected by means of a device encompassed by the medical device or the medical device
  • the associated sensor is receivable and recorded during operation of the medical device.
  • the effective and counteracting a rotation of the knob counter-torque depends at least on a measured value, the operator of the medical device receives an easily interpretable haptic feedback with respect to the operation performed by means of the rotary knob.
  • the advantage of the proposed method is that the operator of the medical device can keep an eye on the patient when turning the rotary knob.
  • the operator of the medical device clinician
  • the operator does not receive any directly utilizable haptic feedback, other than the displayed setpoint, from which he derives the approximate size of the setpoint itself and its influence on the patient can.
  • the counter-torque noticeable when turning the rotary knob, the operator now receives a "feeling" for the set value.
  • a concrete example of a measured value on which such a "tactile" counter-torque is dependent is an airway pressure which comprises one of a medical device in the form of a ventilator or
  • Medical device associated pressure sensor is received, namely an airway pressure of a ventilated by means of the ventilator patient.
  • Rotary knob - against the respective counter-moment - for example, a
  • Ventilation parameters changeable, for example, a setpoint for a
  • Airway pressure With an adjustment of this ventilation parameter and with one dependent on a measured (actual value) airway pressure
  • the operator By contrast, when turning the knob, the operator "feels" the result of each setting.
  • the medical device is a
  • the measured value on which the counter-torque is dependent is a measured value (actual value) which is recorded with reference to an airway pressure of a patient ventilated by means of the ventilator.
  • a ventilation parameter for example the tidal volume, is adjusted or adjusted, which directly or indirectly determines or influences a desired value of the airway pressure of the patient ventilated by the ventilator.
  • Airway pressure setpoint the more general expression of a set value of a ventilation parameter and also the more general expression of the respectively set rotation angle of the rotary knob (softer the set value of the ventilation parameter determined) read.
  • the method and subsequently described embodiments of the method and the method steps included therein are carried out automatically, ie without intervention by the user of the respective medical device.
  • the automatic execution of the process steps takes place under the control of a
  • Control unit of the medical device acting device control includes, for example, a processing unit in the form of or in the manner of a microprocessor and a memory.
  • a processing unit in the form of or in the manner of a microprocessor and a memory.
  • a memory In the memory is one of the
  • Processing unit executable control program loaded or loadable which comprises an implementation of the proposed method and optionally an implementation of one or more embodiments of the method and is executed during operation of the medical device by its processing unit.
  • the invention is insofar preferably implemented in software.
  • the invention is thus also a computer program with program code instructions executable by a computer and, on the other hand, a storage medium with such a computer program, ie a computer program product with program code means, and finally also a control unit or a medical device, in its or its memory as means for carrying out the method and its embodiments such a computer program is loaded or loadable.
  • An actuator for example an electric motor acting as an actuator, is a simple and easy to control device for generating a counteracting rotation of the knob
  • the counter-torque dependent on a current measured value is dependent on a current rotational angle of the rotary knob
  • a medical device which is intended and configured for carrying out the method described here and below, and insofar has at least one rotary knob intended for setting a value of a parameter / ventilation parameter, wherein the value of the rotary knob is set by turning the rotary knob respective parameter / ventilation parameters can be changed, wherein at least one actuator is non-positively connected to the rotary knob, wherein a measured value can be detected by means of a sensor device encompassed by the medical device or associated with the medical device, and wherein by means of the actuator dependent on the detected measured value and counteracting a rotation of the rotary knob counter-torque can be applied.
  • Rotary angle sensor positively connected to the knob.
  • a rotation angle of the rotary knob can be detected.
  • another counter-torque angle of rotation dependent
  • Counter torque (measured value dependent counter torque) is superimposed.
  • the actuator is then dependent on the detected measured value and the detected angle of rotation and counteracting a rotation of the knob
  • Countermoment applied and the user receives not only a haptic feedback to the respective measured value, ie the result of each knob on the setting, but for example, a
  • the rotational angle sensor and the actuator by means of a common shaft frictionally with the
  • Rotation angle sensor with the knob and on the other hand of the actuator with the knob then takes place via one and the same component, namely a common shaft.
  • FIG. 2 shows a medical device with an arrangement according to FIG. 1,
  • FIG. 4 shows a counter-torque dependent on a measured value and noticeable when the rotary knob is turned (counter-torque profile),
  • FIG. 2 For a medical device 10 not shown here (FIG. 2), for example a respirator, certain arrangement with a rotary knob 12 functioning as a control element of the medical device 10.
  • a disc 14 associated rotation angle sensor 16 which scans, for example, in a basically known manner a mounted on the disc 14 measuring scale.
  • the disc 14 is connected via a shaft 18 or the like with the
  • Rotary knob 12 coupled (at least positively connected) such that rotation of the knob 12 causes rotation of the disc 14, for example by the disc 14 concentric with the knob 12 on a a Rotary axis of the knob 12 defining shaft 18 is mounted.
  • a friction wheel or a gear can be used.
  • an angle sensor 16 is also an inductive sensor or a sensor with electrical sliding contacts into consideration.
  • a detection of the rotation and a direction of rotation by means of a camera is possible.
  • Rotation angle sensor 16 detectable value with respect to the position of the knob 12 or a number of rotations of the knob 12 or a
  • the rotational speed of the rotary knob 12, etc. is evaluated as the basis for setting a parameter of the medical device 10.
  • a derivative of an adjustable by means of the knob 12 parameter is not in the foreground here and is also known per se. Accordingly, this is not considered here.
  • knob 12 a haptic feedback regarding the
  • an opposing torque acting as force feedback is generated by means of an actuator 20.
  • the counter-torque must be overcome when turning the knob 12.
  • strength of the counter-torque of the operator receives when turning the knob 12 a directly perceptible haptic feedback.
  • the actuator 20 for force feedback acts, for example, a
  • Electromechanical drive in particular an electric motor, a Braking device or a gel (magnetorheological fluid) with an influenceable by an electromagnetic field viscosity.
  • the actuator 20 is coupled via the shaft 18 with the knob 12. It is generally provided that the rotary knob 12 and the actuator 20 are coupled directly or indirectly non-positively, for example by means of a shaft 18, a friction wheel, a transmission or the like.
  • a control device 22 encompassed by the medical device 10 receives sensor signals 24 from the rotational angle sensor 16 and processes them. As part of such processing, the control device 22 continuously determines a respective direction of rotation of the rotary knob 12 and a change in the angle of rotation. For controlling the actuator 20, the control device 22 automatically generates control signals 26 for the actuator 20. This generates a counter-torque due to a control signal 26 obtained, which due to the
  • one of the medical device 10 is included
  • the device control 30 acts as a central
  • Control unit of the respective medical device 10 so for example as the central control unit of a ventilator.
  • Control device 22 is intended to illustrate a possible functional separation within the medical device 10. All components above this horizontal line are optionally combined in an assembly in which the control device 22 an interface function to a
  • the device control 30 of the medical device 10 takes over.
  • the device control 30 may also include the control device 22 or at least the functionality of the control device 22 so that the control device 22 is not separate
  • Control device 22 and from the control device 22 to
  • Controller 22 independent of the device controller 30 and communicatively connected to the device controller 30 assumed.
  • Device controller 30 which includes the functionality of the controller 22, for example in software or in software and firmware, is always read along and should be considered with this note as encompassed by the description presented here.
  • the device controller 30 is at least functionally associated with a sensor 32, for example, a pressure and / or flow sensor or a plurality of pressure and / or flow sensors.
  • the sensor 32 provides at least one during operation
  • Device control 30 at least functionally associated with an actuator 36, the
  • Example a functioning as actuator 36 valve or at least one valve comprehensive actuators 36.
  • the device controller 30 To control them generates the device controller 30 in a basically known manner at least one drive signal 38, for example control signals 38, which opening or closing of the actuator 36th cause belonging valves in an inspiratory and expiratory branch of a ventilator.
  • control signals 38 which opening or closing of the actuator 36th cause belonging valves in an inspiratory and expiratory branch of a ventilator.
  • different variants are considered, of which two variants are discussed below with further details and are referred to as the first variant or second variant for distinction.
  • the first variant which can also be interpreted as a measured value-dependent variant and leads to a measured value-dependent counter-torque, by means of the actuator 20, a counter-torque effective when turning a rotary knob 12 is applied, which is picked up by a sensor 32
  • the generation of a measured value-dependent counter-torque acting on actuation of the rotary knob 12 by means of the actuator 20 comprises, for example, the following steps, which are carried out continuously or cyclically, in particular equidistant, times:
  • the device controller 30 receives from the sensor 32, a sensor signal.
  • the sensor signal encodes a measured value 34.
  • the device controller 30 automatically detects a received to the
  • the control device 22 generates a control signal 26 in accordance with the received date and outputs this to the actuator 20.
  • the actuation of the actuator 20 with the control signal 26 causes the generation of the counter-torque by the actuator 20.
  • Control program 42 so a computer program, provided which during operation of the medical device 10 by means of a processing unit comprised of the device controller 30 in the form of or in the manner of a microprocessor is performed.
  • the memory 40 is either a memory 40 encompassed by the device controller 30 or a memory 40 accessible to the device controller 30 in a conventional manner.
  • Counter-torque profile 44 In the simplest case, one or more parameters can form the counter-torque profile 44. By such parameters, for example, it may be determined that the obtained measured value 34 with a
  • Parameter of the counter-torque profile 44 is multiplied and / or that a parameter of the counter-torque profile 44 is added to the obtained measured value 34.
  • a mapping of the value range of the measured value 34 to a value range of the exercisable counter-torque can take place.
  • the function of the device controller 30 may be briefly described as meaning that the device controller 30 is under the control of the control program 42, that is, as included in the control program 42
  • Program code instructions which "apply" respective counter-torque profile 44 when the control program 42 is executed during operation of the medical device 10 by means of the processing unit comprised by the device controller 30.
  • FIG. 3 shows for a ventilator
  • the ventilation parameter is the tidal volume VT and plotted on the abscissa.
  • the tidal volume VT is plotted in milliliters [ml_] and individual values (500 ml_, 1000 ml_, 1500 ml_) are highlighted.
  • resulting measured value 34 in the situation shown in FIG. 3 is an airway pressure PawApp recorded by means of a pressure sensor of the sensor 32, namely, an airway pressure PawApp of a patient ventilated by means of the ventilator.
  • the airway pressure PawApp is plotted on the ordinate in the unit millibar [mbar] and individual values (5 mbar, 10 mbar, 15 mbar, etc.) are highlighted.
  • Airway pressure PawApp corresponds to the extensibility of the patient's lung
  • the counter-torque M applied by means of the actuator 20 is dependent.
  • the counter-moment M is also plotted on the ordinate and in the unit milli-Newton-meter [mNm]. In the situation shown this is the case
  • the automatic selection is carried out under control of the control program 42 by the device controller 30 based on the respective variable by means of the rotary knob 12 ventilation parameter.
  • a mathematical function or a table may be used, for example a factor for mapping the value range of the measured value 34 to the value range of the counter-torque or also directly the respective counter-torque M based on the mathematical function or the table results.
  • a function or table or the like is also an example of a counter-torque profile 44.
  • the operator receives during the setting of the respective ventilation parameter when turning the knob 12, a haptic feedback regarding the result of the value set for the respective ventilation parameter.
  • FIG. 4 shows two regions with greatly fluctuating values of the airway pressure PawApp resulting from such compliance changes.
  • the fluctuating (oscillating) airway pressure PawApp is accompanied by a proportional oscillation of the counter-torque, which the operator when turning the knob 12 in a narrow rotation angle range
  • the trigger of spontaneous breathing in the form of a pulse can be given to the rotary knob 12 with each online adjustment of a ventilation parameter.
  • an indication for self-breathing of the patient is derived from a corresponding measured value 34.
  • a short-term (pulse-like) increase of the counter-torque can be superimposed, for example, on a counter-torque according to FIG.
  • the second variant which can also be understood as a rotation angle-dependent variant and to a rotational angle-dependent
  • Adjustment of an operator based value dependent counter torque applied The measured value-dependent counter-torque does not depend directly, but indirectly on the setting of the operator, because the underlying measured value 34 is recorded, for example, on the patient.
  • the current value on which the counter-torque is dependent in this second variant is a rotation angle of the rotary knob 12, a resulting due to the rotation angle of the knob 12 setting value or a value range of
  • the counter-torque is also dependent on the respective rotation angle, because the respective rotation angle determines whether or not it belongs to a certain range of values.
  • the counter-torque is at least indirectly dependent on the rotation angle and thus also on the rotation angle, because the rotation angle determines the set value.
  • the counter-torque is also at least indirectly dependent on the rotation angle, because the rotation angle determines the set value and thus determines whether it belongs to a certain range of values or not.
  • the rotation angle-dependent counter-torque In the interests of better readability of the further description is sometimes spoken only briefly by a rotation angle-dependent counter-torque and the description continues on this basis.
  • a rotation angle dependent counter torque can optionally a
  • angle-dependent counter-moments may be stored in the memory 40 and the counter-torque profile 44 is - by the device control 30 - as outlined above - "applied" and the
  • the operator of the medical device 10 can, in addition to the haptic feedback of the effect resulting from the adjustment made, for example, be given a haptic feedback with respect to confirmation limits when turning the rotary knob 12.
  • a confirmation limit avoids, for example, that too fast a rotation and a possibly unintentional
  • FIG. 5 shows, as a counter-torque profile 44, a graph 50 with a pulse-like elevation at a specific angle of rotation (f-i). Until reaching this angle of rotation acts when turning the knob 12 a
  • FIGS. 5 to 8 and FIGS. 9 to 12 refers to a counter-torque acting on the basis of the respective counter-torque profile 44, it should be pointed out that this is due exclusively to the respective (rotational angle-dependent) counter-torque profile 44 acting counter moment means.
  • Confirmation limit are also several and regularly or irregularly spaced confirmation limits over the entire adjustment range, which is selectable by means of the knob 12, possible. This also applies to all examples described below.
  • FIG. 6 shows the graph 50 of a further variant of a counter-torque profile 44 determined for the realization of a confirmation limit at a specific rotation angle (fi).
  • the respective effective counter-moment (Mi or M2) is constant, but is the level behind the confirmation limit is significantly higher (M2> Mi).
  • knob 12 the operator notices the achievement of the confirmation limit due to the suddenly higher counter torque (previously Mi, now M2). In addition, further rotation of the knob 12 is in the on the confirmation boundary
  • initial counter-moment Mi up to a counter-momentum M2 (M2> Mi) at the confirmation limit increases depending on the angle of rotation and increases with a first slope nm.
  • the counter-torque M increases from the counter-torque M2 effective at the confirmation limit with a higher slope nri2 (nri2> ITH).
  • Confirmation limit takes the counter-torque M, starting from the effective at the confirmation limit counter-torque M2 with the before
  • Rotary knob 12 the operator notices the progression in the area before the confirmation limit due to the continuously increasing
  • Confirmation limit is a further rotation of the knob 12 because of there already initially higher effective counter-torque significantly heavier than in the area before the confirmation limit and also increases the counter-torque in the area following the confirmation limit continues to, optionally, for example - unlike shown - with a higher slope than before
  • Rotary knobs can be signaled to the operator by means of a correspondingly higher counter-torque which is noticeable during turning.
  • the coupled parameters for example, respiratory rate and
  • Inspiration time for example, selected by pressing appropriate adjuster a user interface of the medical device 10.
  • angle-dependent counter-momentum profiles 44 of the representations in Figure 6 to Figure 8 are used. Then switching to a higher counter-torque (FIG. 6, FIG. 8) and / or switching to a respective gradient of the counter-torque (FIG. 7, FIG. 8), unlike in the illustrations in FIG. 6 to FIG. 8, is not one of them as a confirmation limit
  • FIG. 9 to FIG. 12 show the graphs 52 of further, in principle optional rotation angle-dependent counter-torque profiles 44, which are optionally provided with a measured value-dependent counter-torque profile 44, but also with a measured-value-dependent counter-torque profile 44 and the angle-dependent counter-torque profile shown and described so far.
  • Profiles 44 ( Figure 5 to Figure 8) can be combined.
  • a counter-torque profile 44 which is based on the graph 52 shown in FIG. 9, simulates a latching function of the rotary knob 12 that was previously implemented mechanically. The previously necessary corresponding mechanical element can be dispensed with. Instead of the shown
  • Triangular function comes alternatively, for example, on a so-called sawtooth-based counter-torque profile 44 into consideration.
  • the triangles or saw teeth in the counter-torque profile 44 need not necessarily connect directly to each other. Rather, between such the engagement of the knob 12 at a certain angle signaling changes in the effective counter-torque, there is an area with a constant counter-moment.
  • Counter torque profiles 44 for signaling default or default values For example, to signal the operator of the medical device 10 of a recommended setpoint or setpoint range, this may be done by means of a countermoment profile 44 having a simulated well (FIG. 10), a sink (FIG. 11) or a well (FIG. 12), i. the actuating force is minimal at the corresponding setting due to the locally reduced counter-torque. Starting from this point, the force necessary to overcome the effective counter-torque increases in both directions.
  • a countermoment profile 44 having a simulated well (FIG. 10), a sink (FIG. 11) or a well (FIG. 12), i. the actuating force is minimal at the corresponding setting due to the locally reduced counter-torque. Starting from this point, the force necessary to overcome the effective counter-torque increases in both directions.
  • graphs 50, 52 shown in the illustrations in FIGS. 5 to 8 as well as FIGS. 9 to 12 are also examples of graphs 50, 52 based on the graphs 50, 52 and applicable by the device control 30, rotation angle-dependent counter-momentum profiles 44 to implement a rotation angle of Knob 12 in an associated and applied by means of the actuator 20 counter-torque.
  • the respective counter-torque profiles 44 may be in the form of a mathematical function, several mathematical functions, a table or the like or in the form of the respectively determining parameters (counter-torque values Mi, M2 and / or inclinations nm, 1712; distances between two counter-torque values Mi, M2 and / or gradients nm, nm; ratios of two counter-torque values Mi, M2 and / or gradients nm, nm) can be stored in the memory 40.
  • a measured value-dependent counter-torque profile 44 according to FIG. 3 or FIG. 4 can be supplemented by a latching function according to FIG. 9 and / or a signaling of default or default values or value ranges according to FIG.
  • the achievement of a minimum or maximum adjustable value (end stop) of a ventilation parameter can also be signaled by means of a counter torque that becomes effective when the end stop is reached.
  • the an end stop signaling counter-torque is preferably a maximum
  • rotation angle-dependent counter-torque profile 44 used, which optionally with other rotation angle-dependent counter-torque profiles 44 a
  • measured value-dependent counter-torque profile 44 is superimposed.
  • Counter-torque profile 44 leads to a particularly high predetermined or predeterminable counter-torque, in particular the maximum applicable
  • a method for operating a medical device 10 is indicated, wherein after the method by means of an actuator 20 an effective upon rotation of a rotary knob 12 and 34 dependent counter-torque is applied from a current measured value, as well as working according to the method and insofar as set up properly
  • the measured value 34 for example, a measured value for a
  • Ventilation pressure is a measure of an effect that occurs as a result of adjusting a patient ventilation parameter.
  • the applied by means of the actuator 20 and effective when turning the knob 12 counter-torque is directly or indirectly from the set value of Ventilation parameters and gives the operator a sense of the effect associated with a control action.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Hematology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Emergency Medicine (AREA)
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  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Human Computer Interaction (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Control Devices (AREA)

Abstract

L'invention concerne un procédé pour faire fonctionner un appareil médical (10), un couple antagoniste agissant lors de la rotation d'un bouton rotatif (12) et dépendant d'une valeur de mesure actuelle (34) étant appliqué au moyen d'un actionneur (20). L'invention concerne également un appareil médical (10) fonctionnant selon ledit procédé.
EP18826225.7A 2017-12-18 2018-12-12 Procédé pour faire fonctionner un appareil médical et appareil médical fonctionnant selon ce procédé Withdrawn EP3634556A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017011684.9A DE102017011684A1 (de) 2017-12-18 2017-12-18 Verfahren zum Betrieb eines Medizingeräts und nach dem Verfahren arbeitendes Medizingerät
PCT/EP2018/084445 WO2019121186A1 (fr) 2017-12-18 2018-12-12 Procédé pour faire fonctionner un appareil médical et appareil médical fonctionnant selon ce procédé

Publications (1)

Publication Number Publication Date
EP3634556A1 true EP3634556A1 (fr) 2020-04-15

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EP18826225.7A Withdrawn EP3634556A1 (fr) 2017-12-18 2018-12-12 Procédé pour faire fonctionner un appareil médical et appareil médical fonctionnant selon ce procédé

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Country Link
US (1) US20210187217A1 (fr)
EP (1) EP3634556A1 (fr)
CN (1) CN111465425A (fr)
DE (1) DE102017011684A1 (fr)
WO (1) WO2019121186A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020078675A1 (fr) * 2018-10-19 2020-04-23 Fresenius Vial Sas Dispositif médical comprenant un élément d'actionnement
DE102020124583A1 (de) 2020-09-22 2022-03-24 Drägerwerk AG & Co. KGaA Bedieneinheit mit Stellrad

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19500529C5 (de) 1995-01-11 2007-11-22 Dräger Medical AG & Co. KG Bedieneinheit für ein Beatmungsgerät
US6686911B1 (en) 1996-11-26 2004-02-03 Immersion Corporation Control knob with control modes and force feedback
US20080055241A1 (en) * 1998-03-26 2008-03-06 Immersion Corporation Systems and Methods for Haptic Feedback Effects for Control Knobs
US7038667B1 (en) * 1998-10-26 2006-05-02 Immersion Corporation Mechanisms for control knobs and other interface devices
US6834647B2 (en) * 2001-08-07 2004-12-28 Datex-Ohmeda, Inc. Remote control and tactile feedback system for medical apparatus
US8010180B2 (en) * 2002-03-06 2011-08-30 Mako Surgical Corp. Haptic guidance system and method
US7667687B2 (en) * 2003-12-30 2010-02-23 Immersion Corporation Resistive and hybrid control schemes for haptic feedback interface devices
EP2121094B1 (fr) * 2007-03-19 2018-04-25 Maquet Critical Care AB Dispositif permettant l'entrée manuelle et la sortie haptique des paramètres de fonctionnement critiques pour le patient dans un appareil respirateur
DE102007044365A1 (de) * 2007-09-17 2009-03-26 Siemens Ag Bedienvorrichtung zur zumindest zweidimensionalen Positionssteuerung, Zusatzmodul zur Erweiterung eines Grundmoduls und medizinisches Untersuchungs- und/oder Therapiesystem
EP2060964A1 (fr) * 2007-11-06 2009-05-20 Ford Global Technologies, LLC Procédé de rétroaction haptique
US20120268285A1 (en) * 2011-04-22 2012-10-25 Nellcor Puritan Bennett Llc Systems and methods for providing haptic feedback in a medical monitor
US9639156B2 (en) * 2011-12-29 2017-05-02 Mako Surgical Corp. Systems and methods for selectively activating haptic guide zones
JP2014215850A (ja) * 2013-04-26 2014-11-17 ヤマハ株式会社 パラメータ設定装置
CN104908046B (zh) * 2015-06-16 2017-01-11 东南大学 一种基于旋钮式力反馈手控器及机械臂遥操作控制方法
DE102015121017A1 (de) * 2015-12-03 2017-06-08 Karl Storz Gmbh & Co. Kg Beobachtungsvorrichtung, insbesondere medizinische Beobachtungsvorrichtung, mit einer Bedieneinheit sowie Verwendung eines Eingabemoduls
DE102017122046A1 (de) * 2017-09-22 2019-03-28 Hamilton Medical Ag Beatmungsvorrichtung mit Bedienvorrichtung mit haptischer Rückkopplung

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DE102017011684A1 (de) 2019-06-19
US20210187217A1 (en) 2021-06-24
WO2019121186A1 (fr) 2019-06-27
CN111465425A (zh) 2020-07-28

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