JP2016071016A - Pregnant woman simulated experience device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pregnant woman simulated experience device which can properly apply a simulated heartbeat and movement of a fetus, and is excellent in handleability.SOLUTION: A pregnant woman simulated experience device comprises: a fetus doll 2 for storing therein at least a piezoelectric vibrator 13 that represents heartbeat and movement of a fetus; a simulated uterus bag 1 for storing therein at least the fetus doll 2; and a transmission and reception terminal 8 for outputting a command signal to the piezoelectric vibrator 13, and displaying animation information related to the heartbeat or movement of the fetus represented by vibration of the piezoelectric vibrator 13. In use of the device, the simulated uterus bag 1 is held between hands and an abdominal part of a user. According to such a configuration, when the fetus doll 2 is vibrated by receiving vibration of the piezoelectric vibrator 13, even when the vibration level is low, a user can properly feel the vibration by tactile sensation of fingertips, so that the device is excellent in giving bodily sensation.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a pregnant woman simulated body sensation apparatus that allows a pregnant woman state to be simulated.

  Pregnant women's pseudo-experience is considered to be experienced by pregnant women and midwives, public health nurses, nurses, etc., women who are going to experience pregnancy and childbirth in the future, or future pregnancy and childbirth. The necessity is recognized from the educational viewpoint for students, students, etc., and in response to this, several pregnant woman simulated sensation devices have already been proposed (see, for example, Patent Document 1).

  The device disclosed in Patent Document 1 is a device intended to teach children / students, etc., knowledge about fetal growth / childbirth from an educational point of view, and is a predetermined part of an apron-type outerwear In addition, a fetal doll housing bag portion having an internal space imitating the uterus and the like is provided, and a fetal doll, a simulated placenta, and the like are housed in the bag portion. The fetal doll houses a heat generating member, a cry generator, a fetal heart sound generator, and the like.

  And, by experiencing the heat from the heat generating member through the fetal doll, you can experience the “body temperature of the fetus”, by listening to the crying sound that is emitted through the speaker from the cry generator, you can experience the “crying of the fetus”, The heart sound from the fetal heart sound generator is sensed as “fetal heart sound”. Both the “crying voice” and “heart sound” of the fetus are stored in the voice ROM, and when these bodily sensations are felt, the “crying voice” or “heart sound” is read from the voice ROM and reproduced. Yes.

JP 2004-77562 A

  However, the apparatus described in Patent Document 1 has the following problems.

  (1) In the device described in Patent Document 1, the fetus doll storage bag portion is provided at a position corresponding to the abdomen of the user when worn on a predetermined part of an apron-type outerwear, for example. The fetus doll and the simulated placenta are housed in the housing bag, and the heat generating member, the cry generator, the fetal heart sound generator, etc. are housed in the fetal doll. You can feel it by touching the abdomen.

  In this way, when the user senses vibrations that simulate the behavior of the fetus in a tactile sense on the abdomen, the knowledge that the tactile sense on the abdomen is lower than the tactile sense on the fingertips of the hand Considering the matter, it is necessary to increase the level of vibration or the like in order to make the user perceive vibration or the like accurately, and there is a problem that the cost of the apparatus is increased accordingly.

  (2) Moreover, since the apparatus of patent document 1 is made to attach this apparatus to the apron-type outerwear, for example, it turns and experiences by rotating the said apparatus between several persons who participated in the pregnant woman class. There is room for improvement in terms of training efficiency, such as the need to put on and take off an apron-type jacket every time it is changed, and it takes time to change the experience.

  Therefore, the present invention has been made with the object of providing a pregnant woman pseudo-body sensation apparatus that can accurately sense the fetal heartbeat, fetal movement, and the like, and that is excellent in handling.

  A pregnant woman simulated body sensation apparatus according to a first invention of the present application is a doll imitating a fetus, and at least the inside thereof is a piezoelectric device that expresses fetal heartbeat and fetal movement by controlling vibration time, frequency, and amplitude. A fetal doll in which a vibrator is stored, a bag imitating a uterus, at least a simulated uterine bag in which the fetal doll is stored, and a command signal related to the expression of heartbeat or fetal movement in the piezoelectric vibrator And transmitting or transmitting / receiving a terminal for displaying animation information related to fetal heartbeat or fetal movement expressed by vibration of the piezoelectric vibrator, and the simulated uterine bag is placed between the user's hand and abdomen. It is characterized by being used in a state of being sandwiched between them.

  According to a second invention of the present application, in the pregnant woman simulated body sensation apparatus according to the first invention, the back surface of the fetal doll faces the surface supported by the user's hand among the front and back surfaces of the simulated uterine bag. It is characterized by being housed in the simulated uterine bag in a state.

  According to a third invention of the present application, in the pregnant woman simulated body sensation apparatus according to the first or second invention, a vibration generator in which the piezoelectric vibrator is housed in the fetal doll, and a contact with the vibration generator. Thus, a sachet containing a large number of hard granular materials is provided.

(A) 1st invention of this application In the pregnant woman simulated body sensation apparatus according to the 1st invention of this application, a piezoelectric device that expresses fetal heartbeat and fetal movement by controlling vibration time, frequency, and amplitude at least inside thereof. A fetal doll in which a vibrator is housed, and at least a simulated uterine bag in which the fetal doll is housed,
A transmitting or transmitting / receiving terminal that outputs a command signal related to expression of heartbeat or fetal movement to the piezoelectric vibrator and displays animation information related to fetal heartbeat or fetal movement expressed by vibration of the piezoelectric vibrator. In use, the above-described simulated uterine bag is configured to be sandwiched between the user's hand and the abdomen.

  Therefore, human touch is the highest at the fingertips of the hand and the tactile sense of the abdomen is not so high, so when using the pregnant woman simulated sensation apparatus as in the present invention, the simulated uterine bag is used for the user's hand and abdomen. When the fetal doll vibrates due to the vibration of the piezoelectric vibrator, even if the vibration level is low, the user can accurately detect the vibration by touching with the fingertip. For example, compared with the case where the vibration is sensed by a tactile sensation in the user's abdomen, a pregnant woman simulated body sensation apparatus that is more excellent in body performance can be provided.

(B) Second invention of the present application In the second invention of the present application, in addition to the effects described in (a) above, the following specific effects are obtained. That is, according to the present invention, the fetal doll is housed in the simulated uterine pouch in a state where the back surface thereof faces the surface supported by the user's hand among the front and back surfaces of the simulated uterine pouch.

  Therefore, (a) Since the limbs are folded and present on the abdominal surface side of the fetal doll, the vibration of the piezoelectric vibrator housed in the fetal doll is greater than the abdominal surface side of the fetal doll. (B) the back surface of the fetal doll that easily senses the vibration of the piezoelectric vibrator, the surface that is supported by the user's hand among the front and back surfaces of the simulated uterine bag, ie, the user's hand As a result of the fact that the tactile sensation is faced most, and the synergistic effect of these, the fetal pulsation and fetal movement due to the vibration of the fetal doll can be sensed more sensitively, and the pregnant female simulated body sensation can be experienced. The performance is further improved.

(C) Third invention of the present application In the third invention of the present application, in addition to the effects described in the above (a) or (b), the following specific effects can be obtained. That is, according to the present invention, the fetal doll is provided with a vibration generating device containing the piezoelectric vibrator and a filling bag containing a large number of hard granular materials so as to be in contact with the vibration generating device. Therefore, the vibration of the piezoelectric vibrator spreads and spreads to the surroundings due to irregular reflection by the hard granular material in the packing bag. Therefore, the vibration is expressed as an approximation of the “fetal movement” of a real fetus, and a realistic pregnant woman simulated sensation apparatus can be provided.

1 is a system configuration diagram of a pregnant woman simulated experience apparatus according to the present invention. FIG. 2 is an explanatory diagram of the structure of the fetal doll shown in FIG. FIG. 2 is a perspective view of the vibration generator shown in FIG. 1 in an open state. FIG. 4 is a structure explanatory diagram of a piezoelectric vibrator provided in FIG. 3. It is a vibration (sound) waveform diagram corresponding to fetal heartbeat / fetal movement. It is explanatory drawing of the accommodation state of a fetus doll, a simulated placenta bag, etc. to a simulation uterine bag. It is an AA arrow line view of FIG. It is execution explanatory drawing of the pregnant woman pseudo-experience using the simulated uterine bag. It is a screen display explanatory diagram of a transmission / reception terminal. It is explanatory drawing of the control method in the 1st pregnant woman pseudo-experience example. It is explanatory drawing of the control method in the 2nd pregnant woman pseudo-experience example. It is explanatory drawing of the control method in the 3rd pregnant woman pseudo-experience example.

  FIG. 1 shows a system configuration of a pregnant woman simulated experience apparatus Z according to an embodiment of the present invention. This pregnant woman simulated body sensation apparatus Z includes a simulated uterine bag 1 formed of a bag body simulating a uterus, a fetal doll 2 simulating a fetus, a simulated placenta bag 3 simulating a placenta, and a cable 4 simulating an umbilical cord. The vibration generator 5, the sensor 6, the filling bag 7, and the transmission / reception terminal 8 are configured.

"Mock uterine bag 1"
The simulated uterine bag 1 is constituted by a bag of a predetermined size, and the fetal doll 2, the simulated placenta bag 3, and the cable 4 are accommodated therein. The simulated placenta bag 3 incorporates a battery (not shown), and the cable 4 is connected to the battery. The cable 4 is connected to the vibration generator 5 described below to feed power to the vibration generator 5 side.
The simulated uterine bag 1 and the simulated placenta bag 3 do not have to have a form similar to that of a real uterus or placenta, and may have any form that can feel a certain atmosphere.
A method for storing the fetal doll 2 and the like in the simulated uterine bag 1 will be described later.

"Fetal doll 2"
The fetus doll 2 is a cloth doll imitating a fetus, and the inside thereof is filled with a cotton material 9, but in this embodiment, a part of the cotton material 9 is removed. A storage space is secured here, and a vibration generator 5 to be described later is accommodated in the storage space, and a sachet 7 is accommodated at both ends of the vibration generator 5 so as to be in contact with the vibration generator 5 respectively. In addition, a sensor 6 is accommodated in the vicinity of one of the sachets 7.
The fetal doll 2 does not have to have a form similar to that of a real fetus, and may have any form that can feel a certain atmosphere.

"Vibration generator 5"
As shown in FIGS. 3 and 4, the vibration generator 5 stores and fixes the control means 11 in the box 51a of the storage box 51 having a box 51a made of hard resin and a lid 51b. The following piezoelectric vibrator 13 is attached to the inner surface of the lid 51b.

  The piezoelectric vibrator 13 includes support bases 18 provided at both ends thereof with piezoelectric vibration plates 14 each having a piezoelectric element 16 fixed at a substantially central portion in the length direction of an elastic plate member 15 made of a strip-shaped stainless steel having a predetermined length. It is configured to be fixed to the lid 51b of the storage box 51 via The piezoelectric vibrator 13 and the control means 11 are connected via a harness 12 extending from the piezoelectric element 16.

  The weight of the piezoelectric vibrator 13 is set so that the piezoelectric diaphragm 14 supported by the pair of left and right support bases 18 has a natural frequency of 100 Hz to 300 Hz, more preferably 150 Hz to 250 Hz. When the weight corresponding to the natural frequency cannot be secured with the piezoelectric diaphragm 14 alone, the weight 17 is attached to the lower surface side of the piezoelectric element 16 to adjust the weight.

  The piezoelectric vibrator 13 expresses fetal pulsation and fetal movement by the vibration, and the vibration time, frequency and amplitude are controlled by the control means 11 to realize this. A fetal beat and a vibration waveform that simulates the fetal movement are stored as waveform data, and this is selected and executed based on a command signal (described later).

Here, the natural frequency of the piezoelectric vibrator 13 is said to be about 50 Hz to 350 Hz, and the natural frequency of the piezoelectric vibrator 13 is set to 100 Hz to 100 Hz. If set in the range of 300 Hz, the vibration of the piezoelectric vibrator 13 can be comfortably felt as “beat” or “fetal movement”. Moreover, by causing the piezoelectric vibrator 13 to vibrate at the natural frequency to cause resonance, the amplitude is amplified, and “beat” or “fetal movement” can be recognized more clearly.
In addition, it is preferable to set the natural frequency of the piezoelectric vibrator 13 in the range of 150 Hz to 250 Hz because the vibration of the piezoelectric vibrator 13 can be felt as being more approximate to the “fetal movement” of a real fetus. .

"Waveform data"
Here, the waveform data will be described. Here, as fetal information, the fetal “beat” and “fetal motion” are assumed, and the fetal “beat” is assumed to be two cases of “early heartbeat” and “slow heartbeat”. For, we assume two cases: “Kicking” that stretches limbs and “Rolling” that rolls over. And the waveform data corresponding to each of these fetus information is shown in FIG. This will be described individually below.

  In order to express “kicking” of “fetal movement”, for example, the piezoelectric vibrator 13 is vibrated at its natural frequency, and the vibration is rapidly attenuated within about 1.5 to 2 seconds and disappears. (See the waveform data of “Kicking” in FIG. 5).

  In order to express “rolling” of “fetal movement”, for example, the piezoelectric vibrator 13 is vibrated at its natural frequency, and the amplitude is increased and decreased repeatedly for about 3 to 4 seconds. It may be controlled so that it disappears later (see “rolling” waveform data in FIG. 5).

  In order to express the fetal heartbeat, for example, the piezoelectric vibrator 13 may be controlled to vibrate at a natural frequency of 0.3 to 0.4 seconds and to be repeated about 130 to 160 times per minute. In order to increase reality, the combination of frequency, amplitude and time with reference to the actual fetal heartbeat (fetal heart rate varies depending on the gestation week, but on average about 110 to 160 times per minute) (See the waveform data of “early beat” and “slow beat” in FIG. 5).

"Packed bag 7"
The stuffing bag 7 is accommodated in the fetal doll 2 together with the vibration generating device 5 as described above. The purpose of the stuffing bag 7 is that the fetal doll 2 corresponds to the actual weight of the fetus. Giving a weight to the fetus, and efficiently diffusing and transmitting the vibration generated from the piezoelectric vibrator 13 of the vibration generating device 5 to the fetal doll 2 so that the fetal movement expressed in a pseudo manner by the vibration can be obtained. The point is to have reality. From such a viewpoint, the sachet 7 contains a large number of granules having a specific gravity of about 1 to 10 and a diameter of about 5 to 20 mm made of, for example, stone, aluminum, iron, copper, etc. ing.

  Then, when the stuffing bag 7 is housed in the fetal doll 2 together with the vibration generating device 5, vibration generated from the piezoelectric vibrator 13 of the vibration generating device 5 is housed in the stuffing bag 7. The fetal movement of the fetus which is irregularly reflected in a large number of hard granular materials and dispersed in the surroundings, and which is pseudo-expressed by the vibration, can be felt more genuinely.

"Sensor 6"
The sensor 6 does not indicate a single sensor, but is a general term for a plurality of sensors such as a temperature sensor, an acceleration sensor, and a pressure sensor provided in the simulated uterine bag 1 or the fetal doll 2, for example. Based on the information acquired by each of these sensors, for example, the movement of a person's hand touching the simulated uterine bag 1 is sensed, and the sensing data is output to a transmission / reception terminal 8 described later.

"Transceiver terminal 8"
The transmission / reception terminal 8 is in the hands of a user (that is, a sensation person) of the pregnant woman simulated sensation apparatus Z, receives various input signals, and sends a command related to vibration to the control means 11 of the vibration generator 5. And an animation representing the movement of the fetus corresponding to the command is reproduced on the display screen, and a dedicated application for performing such work is incorporated.

  Specifically, as shown in FIG. 9, a menu item column 8 a and an event item column 8 b are set on the screen of the transmission / reception terminal 8. In the menu item field 8a, for example, three menu buttons “Let's feel the heartbeat”, “Let's feel the heartbeat” and “Let's play with the fetus” are displayed. The user selects one of these menu buttons. When one of the menu buttons is selected, an event button corresponding to the menu button is displayed in the event item field 8b, so that the user 40 selects one of the displayed event buttons. To do.

  When the menu button and the event button are selected in this way, a command signal corresponding to the selected menu and event is output from the transmission / reception terminal 8 to the control means 11, and the control signal from the control means 11 is output. In response, the piezoelectric vibrator 13 vibrates to generate a required vibration, which is transmitted to the fetal doll 2. Therefore, the sensible person can feel the vibration of the fetal doll 2 as the fetal heartbeat or fetal movement. In parallel with this, an animation representing the movement of the fetus corresponding to the command is reproduced on the screen of the transmission / reception terminal 8.

Here, an example of a combination of menu items and event items in the transmission / reception terminal 8 will be described.
(1) For the menu item “Let's feel the heartbeat”, event menus such as “surprise” (early heartbeat) and “relax” (fetal normal heartbeat) are set.
(2) For the menu item “Let's feel fetal movement”, for example, “Kicking” (reproduction of the fetal movement when the fetus kicks in the womb), “Rolling” (movement of the fetus rolling in the womb, etc.) Event menus such as reproduction of fetal movements when the
(3) For the menu item “Let's play with the fetus”, for example, an event menu relating to play of communication between the fetus and the mother, such as “Kick game”, “Ayasu”, and “Tickling” is set.

  The transmission / reception terminal 8 may be replaced with a transmission terminal (not shown) having only a transmission function when it is not necessary to receive sensing data output from the sensor 6. it can.

“Containment of fetal doll 2 etc. in the simulated uterine bag 1”
As described above, the fetus doll 2, the simulated placenta bag 3, the cable 4 and the like are accommodated in the simulated uterine bag 1. The accommodation method in this case will be described with reference to FIGS.

  The simulated uterine bag 1 is a flat bag body having an upper end opened, and the fetal doll 2, the simulated placenta bag 3 and the like are accommodated through the upper end opening portion, and the pregnant woman simulated experience apparatus Z together with the transmission / reception terminal 8. Configure. And when performing the pregnant woman simulated experience using the said pregnant woman simulated experience apparatus Z, as shown in FIG. 8, the user (sensation person) 40 presses the back surface 1b of the said simulated uterine bag 1 against the abdomen 41. In the state where the surface 1a side of the simulated uterine pouch 1 is supported by the palms of both hands 42 and 43, the pregnant woman simulated experience apparatus Z is used.

  The fetal doll 2 and the like are accommodated in the simulated uterine bag 1 in consideration of the use form of the pregnant woman simulated experience apparatus Z. That is, as shown in FIGS. 6 and 7, the fetal doll 2 is in an inverted posture with its head 2a facing the bottom of the simulated uterine bag 1, and the back 2b of the fetal doll 2 is placed in the simulated uterine bag. 1 is housed in the simulated uterine pouch 1 in a posture in which the front surface 1a is closely opposed from the inside. The simulated placenta bag 3 provided with the cable 4 is accommodated on the ventral side of the fetal doll 2, that is, near the back surface 1b of the simulated uterine bag 1.

  In this way, when the user 40 holds the pregnant woman simulated sensation apparatus Z as shown in FIG. 8 by causing the back surface 2b of the fetal doll 2 to face the surface 1a of the simulated uterine bag 1 from the inside in the vicinity. The palms of both hands 42 and 43 of the user 40 come into contact with the back surface 2b side of the fetal doll 2. In this case, since the human touch is the highest at the fingertips of the hand and the touch of the abdomen is not so high, the simulation is performed so that the palms of both hands 42 and 43 are in contact with the back 2b side of the fetal doll 2. If the fetal doll 2 vibrates due to the vibration of the piezoelectric vibrator 13 of the vibration generator 5 by holding the uterine bag 1, even if the vibration level is low, the user 40 The vibration can be accurately sensed by the fingertip.

"Pseudo-experience example using pregnant woman simulated experience apparatus Z"
"First simulated experience"
In FIG. 10, the block diagram which concerns on the 1st pseudo experience example performed using the said pregnant woman pseudo experience apparatus Z is shown. In this first simulated experience, the fetal heartbeat and fetal movement can be experienced starting from the manual operation of the user 40.

  That is, in this pseudo-experience example, the user 40 first selects and inputs a desired menu item and an appropriate event item corresponding thereto in the transmission / reception terminal 8 (which may be a transmission terminal). Then, a command signal is output from the transmission / reception terminal 8 to the control means 11 of the vibration generator 5 to generate vibration corresponding to the menu and event. Upon receiving this command signal, the control means 11 outputs a control signal to the piezoelectric vibrator 13 based on the waveform data 10 and generates a predetermined magnitude of vibration from the piezoelectric vibrator 13. The fetal doll 2 vibrates in response to the vibration of the piezoelectric vibrator 13 and a pseudo heartbeat or fetal movement is generated. Therefore, the user 40 can experience the fetal heartbeat or fetal movement through the fetal doll 2. Can do.

  In addition, when the user 40 performs manual input, the transmission / reception terminal 8 reflects this input information in a dedicated application, and transmits / receives a fetal operation (for example, kicking operation) corresponding to the input information. It is reproduced as an animation on the terminal 8 for use.

  As another embodiment, as shown by a chain line in FIG. 10, when the transmission / reception terminal 8 receives the command signal from the transmission / reception terminal 8, the control means 11 It is also possible to play back an animation that expresses the movement of the fetus corresponding to the command based on the animation playback signal output from.

"Second simulated experience"
In FIG. 11, the block diagram which concerns on the 2nd pseudo experience example performed using the said pregnant woman pseudo experience apparatus Z is shown. The second simulated experience is that the sensor 6 senses the movement of the hand of the user 40 supporting the simulated uterine bag 1 and inputs the data to the transmitting / receiving terminal 8. As such, the heartbeat and fetal movement of the fetus can be experienced.

  That is, when a sensing data signal is input to the transmission / reception terminal 8, the transmission / reception terminal 8 outputs an operation command signal corresponding to the sensing data to the control means 11 of the vibration generator 5. Upon receiving this command signal, the control means 11 outputs a control signal to the piezoelectric vibrator 13 based on the waveform data 10 and generates a predetermined magnitude of vibration from the piezoelectric vibrator 13. The fetal doll 2 vibrates in response to the vibration of the piezoelectric vibrator 13 and a pseudo heartbeat or fetal movement is generated. Therefore, the user 40 can experience the fetal heartbeat or fetal movement through the fetal doll 2. Can do.

  On the other hand, the transmission / reception terminal 8 reflects the input sensing data signal in a dedicated application and reproduces an operation corresponding to the sensing data signal (for example, kicking operation) as an animation in the transmission / reception terminal 8. .

“Third simulated experience”
FIG. 12 is a block diagram according to a third simulated experience that is performed using the pregnant woman simulated experience apparatus Z. In this third simulated experience, the user 40 can experience the fetal heartbeat and fetal movement, and can play with the fetus, starting from the user 40 speaking to the transmission / reception terminal 8 (which may be a transmission terminal). Is.

  That is, when an audio signal is input to the transmission / reception terminal 8, the transmission / reception terminal 8 outputs an operation command signal corresponding to the audio signal to the control means 11 of the vibration generator 5. Upon receiving this command signal, the control means 11 outputs a control signal to the piezoelectric vibrator 13 based on the waveform data 10 and generates a predetermined magnitude of vibration from the piezoelectric vibrator 13. The fetal doll 2 vibrates in response to the vibration of the piezoelectric vibrator 13 and a pseudo heartbeat or fetal movement is generated. Therefore, the user 40 can experience the fetal heartbeat or fetal movement through the fetal doll 2. Can do.

  On the other hand, the transmission / reception terminal 8 reflects the input audio signal in a dedicated application and reproduces an operation corresponding to the audio signal (for example, an operation related to a kick game) as an animation in the transmission / reception terminal 8. To do.

  The pregnant woman pseudo-sensation apparatus according to the present invention is used as a teaching material or the like in a course related to pregnancy / childbirth for a professional or the like related to pregnancy / childbirth such as a midwife or nurse.

1 .. Simulated uterine bag 2 .. Fetal doll 3 .. Simulated placenta bag 4 .. Cable 5 .. Vibration generator 6 .. Sensor 7 .. Packing bag 8 .. Transmitter / receiver terminal 9 .. Cotton material 11 · Control means 12 · · Harness 13 · · Piezoelectric vibrator 14 · · Piezoelectric vibration plate 15 · · Elastic plate material 16 · · Piezoelectric element 17 · · Weight 18 · · Support base 40 · · User Z · · Pregnant woman simulated body sensation device

Claims (3)

A doll imitating a fetus, and at least the inside of which is a fetal doll containing a piezoelectric vibrator that expresses the fetal heartbeat and fetal movement by controlling the vibration time, frequency and amplitude,
A sac imitating a uterus, at least a simulated uterine bag in which the fetal doll is stored;
A transmitting or transmitting / receiving terminal that outputs a command signal related to expression of heartbeat or fetal movement to the piezoelectric vibrator and displays animation information related to fetal heartbeat or fetal movement expressed by vibration of the piezoelectric vibrator. Prepared,
A pregnant woman simulated body sensation apparatus, wherein the simulated uterine bag is used in a state of being sandwiched between a user's hand and abdomen.   2. The fetal doll according to claim 1, wherein the fetal doll is housed in the simulated uterine bag in a state in which the back surface thereof is opposed to a surface supported by a user's hand among the front and back surfaces of the simulated uterine bag. Pregnant woman simulated experience device.   3. The vibration generator according to claim 1 or 2, wherein the fetal doll is provided with a vibration generator containing the piezoelectric vibrator, and a filling bag containing a large number of hard granular materials so as to be in contact with the vibration generator. Pregnant woman simulated body sensation device characterized by that.