JP2014215563A - Fingering technique simulator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fingering technique simulator with which appropriateness of pressure, positioning, direction and the like for fingering technique needed in palpation in a medical site, massage or acupressure in esthetic clinic or rehabilitation, and kneading of ceramic art clay or food dough is effectively learned.SOLUTION: A fingering technique simulator for learning a fingering technique comprises: a simulation body; a position detector which can be freely attached to and detached from the simulation body; a vector detector which can be freely attached to and detached from trainee's hands or fingers; means for storing example data measured by the position detector and the vector detector when appropriate fingering technique is performed; means for storing training data measured by the position detector and the vector detector when the trainee touches the simulation body; and means for comparing the example data and the training data to display an evaluation of the trainee's fingering technique.

Description

  The present invention relates to a procedure simulator. More specifically, the present invention is effective in adjusting pressure, position, direction, etc. in palpation techniques in medical settings, procedures such as massage and acupressure in aesthetics and rehabilitation, and techniques such as kneading ceramic clay and food dough. The present invention relates to a technique simulator for practical training.

  In recent years, various problems such as an increase in the number of doctors required in hospitals, a decrease in the absolute number of doctors, and an uneven distribution of doctors are becoming apparent with the aging of the population. Doctors are required to have advanced medical knowledge and competent judgment in the medical field. Palpation is one of the methods of touching a patient's body and judging its pathology. In esthetics and rehabilitation, procedures such as massage and shiatsu are performed for relaxation, blood circulation promotion, joint relaxation, and the like. Various simulators have been proposed for training because training of palpation techniques and techniques such as massage and acupressure cannot be performed on an actual person.

  For example, Patent Documents 1 to 4 disclose an apparatus that can embed a pressure detector in a human body model, etc., and can detect a contact pressure and a contact position during a palpation procedure performed by a trainee to perform a palpation procedure training. Has been. In these devices, a surface contact type pressure sensor is used as a pressure detector. The surface contact type pressure sensor 9 has an output voltage or the like that changes according to the contact area between the resistor sheet 1 and the electrode sheet 2 as shown in FIG. The contact area between the resistor sheet 1 and the electrode sheet 2 is determined only by the vertical component of the force applied to the resistor sheet 1. A force component in a direction parallel to the resistor sheet 1 is not detected as an output voltage. An apparatus for evaluating a massage technique using a pressure sensor is described in Patent Document 6, and an apparatus for acupressure training using a bending sensor is described in Patent Document 8. In addition, (a) in FIG. 1 shows a no-load state, (b) to (e) show states in which pressing forces are applied in sequence, and the upper diagrams in (a) to (e) show the pressure. The side surface of the sensor 9 is shown, and the lower figure shows the distribution of the contact area in the pressure sensor 9.

  Patent Document 5 discloses a technique evaluation system that detects a change in the outer shape of a human body model with a reflective photo interrupter including a light emitting element and a light receiving element, and calculates the state of a palpation technique. Since the photo interrupter can detect the position of an object in a non-contact manner, it is said that the photo interrupter is less likely to fail and has higher detection accuracy than a contact sensor. However, it is said that the degree of freedom in design is low because an optical path from the light emitting element to the light receiving element must be secured.

JP 2005-121889 A JP 2007-286416 A JP 2005-227534 A JP 2010-286558 A JP 2007-185400 A JP 2008-83624 A JP 2009-248735 A JP 2010-16161 A

Since the procedure simulator is a device used for training specialists such as doctors, physical therapists, and estheticians, the number of production is small and it is relatively expensive. In addition, since the conventional technique simulator has a sensor such as a pressure detector embedded in the human body model, it cannot be replaced or repaired even if a sensor malfunctions. Techniques such as palpation not only compress from the direction perpendicular to the skin, but also compress the surface of the skin so that it is stroked or press it so that it is buried in the back of the bone (see FIG. 9). In the conventional procedure simulator, only the contact position and the contact pressure are detected and the skill of the procedure is evaluated, so that it is not possible to accurately convey the delicate procedure of the expert as described above to the trainee. .
In addition, depending on the strength of kneading ceramic clay and food dough, there may be a large difference in the quality of ceramic products and food. If we can visualize the power of such kneading, it is expected to be a tool for transferring the skills of potters and bread and cake craftsmen to trainers.
The problem of the present invention is to improve the above points, pressure, position in palpation techniques in medical practice, techniques such as massage and acupressure in aesthetics and rehabilitation, techniques such as kneading ceramic clay and food dough, etc. It is to provide an inexpensive technique simulator for effectively training the direction and the like.

  As a result of investigations to solve the above-mentioned problems, the present inventors have found that when a defect occurs in the vector detection unit by attaching the removable vector detection unit to the simulated body or the hand or finger of the trainee. The vector detector can be easily replaced or repaired, and information on the contact strength, contact direction, contact time, and contact position in the procedure can be detected to accurately train the trainees on the delicate skills of the skilled worker. I found out that I can teach. The present invention has been completed based on this finding.

That is, the present invention includes the following forms.
[1] Simulated body,
A position detector that can be attached to the simulated body;
A vector detector that can be detachably attached to a trainee's hand or finger;
Means for storing exemplary data measured by the position detection unit and the vector detection unit when performing an appropriate procedure;
Means for storing training data measured by the position detector and the vector detector when the trainee touches the simulated body;
A technique simulator having means for comparing the model data and the training data and displaying an evaluation of the technique of the trainee.

[2] Simulated body,
A vector detector that can be detachably attached to the simulated body;
Means for storing exemplary data measured by the vector detector when performing an appropriate procedure;
Means for storing training data measured by the vector detector when the trainee touches the simulated body;
A technique simulator having means for comparing the model data and the training data and displaying an evaluation of the technique of the trainee.

[3] The procedure simulator according to [1] or [2], wherein the model data includes information on contact strength, contact direction, contact time, and contact position.
[4] The technique simulator according to any one of [1] to [3], wherein the training data includes information on contact strength, contact direction, contact time, and contact position.
[5] The vector detection unit includes a pressure sensor arranged one by one in each of the first quadrant to the fourth quadrant of the orthogonal coordinates, and a vector sensor made of an elastic body fixed at the coordinate origin of the orthogonal coordinates. The technique simulator according to any one of [1] to [4].
[6] The vector detection unit includes a vector sensor including a strain generating plate, a column body fixed on the strain generating plate, and a strain gauge that measures a strain amount of the strain generating body caused by the inclination of the column body. The technique simulator according to any one of [1] to [4].

[7] A vector detection unit for technique simulation formed in the shape of a shirt, gloves or finger sack that can be detachably attached to a simulated body or to a trainee's hand or finger.

In the technique simulator of the present invention, the vector detection unit can be attached to the simulated body or the hand or finger of the trainee, and removed from the simulated body or the hand or finger of the trainer when a failure occurs in the vector detection unit. Can be easily replaced or repaired. Examples of the simulated body include a human body model, simulated clay, and simulated fabric. Since the human body model can be a commercially available doll or a human body model of an existing simulator, the manufacturing cost can be greatly reduced.
In addition, since the vector detection unit has a function of detecting information on strength, direction, time, and position, according to the technique simulator of the present invention, palpation techniques at medical sites, massages and acupressures in aesthetics and rehabilitation, etc. Information on contact strength, contact direction, contact time, and contact position in techniques such as kneading pottery clay and food dough, etc., and accurately communicating the delicate techniques possessed by the skilled worker to the trainer be able to.

It is a figure which shows the principle of operation of a surface contact type pressure sensor. It is a figure which shows the operating principle of a vector sensor. It is a figure which shows the vector detection part (sheet | seat) with which the vector sensor is arrange | positioned. FIG. 4 is a side view of the vector detection unit shown in FIG. 3 in an unloaded state. It is a figure which shows an example of visualization of the output voltage from the vector detection part shown in FIG. FIG. 4 is a side view showing a state in which the vector detection unit shown in FIG. 3 is pressed from the upper left to the lower left. It is a figure which shows an example of visualization of the output voltage from the vector detection part shown in FIG. It is a figure which shows an example of the usage condition of the technique simulator of this invention. It is a figure which shows the example of a palpation technique ((a) Palpation method of a subcutaneous structure, (b) Palpation of a liver (normal method), (c) Palpation of a liver (hooking method)).

Embodiments of the present invention will be described below with reference to the drawings. However, the technical scope of the present invention is not limited by the following embodiments. In addition, embodiments in which components are changed, added, or omitted within the scope of the present invention are also included in the technical scope of the present invention.
(Embodiment 1)
A technique simulator according to an embodiment of the present invention includes a human body model A, a position detection unit B that can be attached to the human body model, a vector detection unit C that can be detachably attached to a trainee's hand or finger, Means for storing model data measured by the position detection unit B and the vector detection unit C when performing an appropriate procedure, and measurement by the position detection unit and the vector detection unit when the trainee touches the human body model Means for storing training data, and means for comparing the model data with the training data and displaying the evaluation of the skill of the trainer.

  The human body model A is formed by imitating all or part of the human body in three dimensions. It is desirable that the human body model is formed to be approximately the same as the actual human body size so that the trainee does not feel discomfort with the human body model. In order to reduce visual and tactile discomfort when the trainee trains the human body model, artificial skin that presents the same tactile sensation as the human skin is arranged on the surface of the human body model. It is preferable. In addition, it is preferable that the portions corresponding to the chest and abdomen of the human body can be elastically deformed according to the applied pressure when subjected to compression by the training of the procedure. For the human body model, for example, an elastic material such as urethane or rubber is used.

  The first embodiment includes a position detection unit B that can be attached to a human body model. A conventional pressure sensor can be used for the position detector. The position detection unit B can be attached to the surface of the human body model because it can be easily removed from the human body model. It is preferable to attach.

  The vector detection unit C includes at least one vector sensor that can measure the strength and direction of the force. By analyzing the signal output from the vector sensor, the pressing force can be expressed as a vector.

An example of the vector sensor includes a pressure sensor 4 disposed in each of the first quadrant to the fourth quadrant of orthogonal coordinates, and an elastic body 3 fixed to the coordinate origin of the orthogonal coordinates (see FIG. 2). ). The pressure sensor 4 includes at least the electrode sheet 2 and the resistor sheet 1. When the resistor sheet 1 is pressed, the resistor sheet 1 comes into contact with the electrode sheet 2. The electric characteristic value (for example, output voltage) changes according to the contact area between the resistor sheet 1 and the electrode sheet 2. The magnitude of the pressing force can be calculated from this electrical characteristic value.
In this vector sensor, since the elastic body 3 is fixed at the coordinate origin of the orthogonal coordinates, when the elastic body 3 is pressed from the upper left to the lower right as shown in FIG. 2, the elastic body 3 is deformed to the right, The resistor sheet 1 of the pressure sensor in each of the first quadrant to the fourth quadrant is pressed by the elastic body 3. The area pressed by the elastic body 3 is narrow on the left side (that is, the pressing force is weak) and wide on the right side (that is, the pressing force is strong). From the distribution of the pressing area (pressing force), the strength and direction of the pressing force applied to the elastic body can be calculated. (A) in FIG. 2 shows a no-load state, (b) to (e) show states in which strong pressing forces are applied in sequence, and the upper figure in (a) to (e) shows the pressure sensor 4. The following figure shows the contact area distribution in the pressure sensor 4.

  Further, another example of the vector sensor includes a strain generating plate, a column body fixed upright on the strain generating plate, and a strain gauge for measuring the strain amount of the strain generating body caused by the inclination of the column body ( Patent Document 7). For example, if four strain gauges are arranged on the orthogonal coordinate axes, the strain amount distribution in the orthogonal coordinates can be measured. Then, the inclination direction and the degree of inclination of the column body are calculated from this strain amount distribution, and further, the strength and direction of the pressing force applied to the column body can be calculated therefrom.

  The vector detection unit C can be detachably attached to a trainee's hand or finger. The preferred vector detection unit in the first embodiment generally has a sheet shape, and at least one, preferably a plurality of vector sensors as described above are arranged on the sheet (for example, FIG. 3 and FIG. 4). ). The sheet-like vector detection unit preferably has flexibility and stretchability so that it can be fitted and covered with a trainee's hand or finger, and can be appropriately deformed when pressed. The vector detection unit is preferably formed on a finger sack or glove so as to fit the trainee's finger or hand, for example. The vector detection unit can be removed from the hand or finger of the trainee. The vector detection unit formed on the glove or finger sack is useful for preventing harassment of a patient and preventing infection of bacteria and viruses. In the case of a vector detection unit formed on a glove or a finger sack, it is preferable to arrange the vector sensor on a part covering a trainee's fingertip, palm, or finger base.

  The voltage output from the vector detection unit and the position detection unit is converted into a digital signal by an interface D such as an A / D converter, and the digital signal is processed by an information processing device E such as a personal computer, a personal digital assistant (PDA), or a smartphone. Into. Signal transmission / reception can be performed by wire or wireless. The digital signal is analyzed according to a preset calculation formula, the magnitude and direction of the pressing force are calculated, and the data is stored in the memory device. Since the output voltages of the vector detection unit and the position detection unit can be sampled at predetermined time intervals, the time change in the magnitude and direction of the pressing force can also be stored as data in the memory device. By inputting the position information of a plurality of vector sensors arranged in the vector detection unit to the information processing device in advance, the data of the pressed position can be stored in the memory device.

  Using the procedure simulator according to the present invention, a skilled person first performs a model procedure. The data detected at that time is stored as model data in the memory device. The exemplary data includes information on contact strength, contact direction, contact time, and contact position. It is preferable to collect model data from a plurality of experts and create model data without bias such as wrinkles. In addition, it is preferable to store model data for each target site of the procedure.

  Next, the trainer performs the procedure using the procedure simulator according to the present invention. The data detected at that time is stored in the memory device as training data in real time. The trainee can select the target site for the desired procedure training. The model data when the selected target part is manipulated is called from the memory device. The training data is compared with the model data to evaluate the skill of the trainer and display the evaluation result. Training data and model data can also be compared in time synchronization. Then, the difference between the training data and the model data can be displayed on a display or the like to alert the trainee. In this way, it is possible to transfer the delicate skills possessed by the skilled worker to the trainee. The training data and the model data can be converted into other numerical data by a technique such as Fourier transform, and the noise included in the data can be removed to compare the data.

(Embodiment 2)
A technique simulator according to another embodiment of the present invention includes a human body model, a vector detection unit that can be detachably attached to the human body model, and model data that is measured by the vector detection unit when an appropriate procedure is performed. A means for saving training data, a means for saving training data measured by the vector detector when the trainee touches the human body model, and a comparison of the model data and the training data to display the evaluation of the skill of the trainer And means for performing. The second embodiment is the same as the first embodiment except that the vector detection unit is attached to the human body model instead of the position detection unit, and the vector detection unit is not attached to the hand or finger of the trainee. The vector detection unit that can be attached to the human body model can be attached directly under the skin-like part of the human body model, under the part that simulates the ribs, or the part that mimics an organ, but it is easy to remove from the human body model. It is preferable to attach to the surface of the human body model.

  A preferred vector detection unit in the second embodiment has a sheet shape, and at least one, preferably a plurality of vector sensors as described above are arranged on the sheet (for example, FIGS. 3 and 4). In the vector detection unit shown in FIGS. 3 and 4, a plurality of vector sensors are arranged between two flexible sheets. Moreover, it is preferable that this sheet | seat has the softness | flexibility and elasticity which can be fitted and covered with a human body model. For example, the vector detection unit is preferably formed on a shirt that can be worn on a human body model. Further, the vector detection unit can be removed from the human body model. In addition, a surface imitating the skin can be provided in the vector detection unit in order to reproduce the feel of human skin. As the surface simulating the skin, a combination of a hard material such as polyurethane and a soft material such as silicone simulating fat or muscle can be used. In addition, when the surface imitating the skin is provided on the vector detection unit, the human body model does not need to have a surface imitating the skin, so the inexpensive human model is covered with the vector detection unit according to the present invention. Thus, the procedure simulator according to the present invention that reproduces the skin feel of the human body can be manufactured at low cost.

  Training data and model data can be visualized and displayed on the display. For example, when the vector detection unit is in an unloaded state, only points are displayed as shown in FIG. When the finger 8 is pressed as shown in FIG. 6, the magnitude and direction of the horizontal component of the pressing force can be displayed as a vector (the length and direction of the arrow) as shown in FIG. The size of the vertical component of the pressing force can be displayed by the thickness and color of an arrow, the size and color of a point, and the like.

1: Resistor sheet 2: Electrode sheet 3: Elastic body 4: Pressure sensor (4 sections)
5, 6: Vector detection unit sheet 7: Pushing pressure 8: Trainer or expert finger 9: Surface contact type pressure sensor A: Human body model B: Position detection unit C: Vector detection unit D: Interface E: Information processing machine

Claims (7)

A mock body,
A position detector that can be attached to the simulated body;
A vector detector that can be detachably attached to a trainee's hand or finger;
Means for storing exemplary data measured by the position detection unit and the vector detection unit when performing an appropriate procedure;
Means for storing training data measured by the position detector and the vector detector when the trainee touches the simulated body;
A technique simulator having means for comparing the model data and the training data and displaying an evaluation of the technique of the trainee. A mock body,
A vector detector that can be detachably attached to the simulated body;
Means for storing exemplary data measured by the vector detector when performing an appropriate procedure;
Means for storing training data measured by the vector detector when the trainee touches the simulated body;
A technique simulator having means for comparing the model data and the training data and displaying an evaluation of the technique of the trainee.   The procedure simulator according to claim 1 or 2, wherein the model data includes information on contact strength, contact direction, contact time, and contact position.   The procedure simulator according to any one of claims 1 to 3, wherein the training data includes information on contact strength, contact direction, contact time, and contact position.   The vector detection unit includes a pressure sensor arranged in each of the first quadrant to the fourth quadrant of orthogonal coordinates, and a vector sensor made of an elastic body fixed to the coordinate origin of the orthogonal coordinates. The procedure simulator according to any one of claims 1 to 4.   The vector detection unit has a vector sensor comprising a strain plate, a column body fixed on the strain plate, and a strain gauge for measuring the strain amount of the strain body caused by the tilt of the column body. The procedure simulator according to any one of claims 1 to 4.   A vector detection unit for technique simulation formed in the shape of a shirt, gloves or finger sack that can be detachably attached to a simulated body or to a trainee's hand or finger.

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