CN209912206U

CN209912206U - Helmet type training simulation device used before magnetic resonance examination

Info

Publication number: CN209912206U
Application number: CN201920557950.2U
Authority: CN
Inventors: 刘平; 冷富萍; 喻园园; 王爽
Original assignee: Second Affiliated Hospital Army Medical University
Current assignee: Second Affiliated Hospital Army Medical University
Priority date: 2019-04-23
Filing date: 2019-04-23
Publication date: 2020-01-07
Anticipated expiration: 2029-04-23

Abstract

The utility model discloses a helmet-type training simulation device used before magnetic resonance examination, which comprises a helmet, a simulation sounder, an eye patch, a breath-hold respirator, a breathing sensor, a timer and an alarm; the analog sounder is arranged on the helmet and used for generating the same noise as that generated during magnetic resonance examination; the eye shield is arranged on the helmet and is used for covering the eyes of a user and isolating the light source; the breath-holding respiratory mask is arranged on the helmet and is used for covering the mouth and the nose of a user and isolating air from entering; the breath sensor is arranged on the breath-holding breathing mask and is used for detecting whether breathing action or breathing airflow exists in the breath-holding breathing mask; the analog sounder, the respiration sensor, the timer and the alarm are connected with the controller circuit. The utility model is used for carry out the breath-holding adaptation to the patient before the nuclear magnetic resonance inspection, dark environment adaptation and noise adaptation can let the patient experience nuclear magnetic resonance check-out set state in advance.

Description

Helmet type training simulation device used before magnetic resonance examination

Technical Field

The utility model belongs to a helmet-type training analogue means before being used for magnetic resonance inspection.

Background

The existing magnetic resonance examination has the following characteristics:

firstly, the magnetic resonance examination room is closed, the magnet space is small, and the environment is dark (especially for claustrophobic patients, the magnetic resonance examination room needs to be adapted);

second, magnetic resonance is noisy (70-90 db) at examination, resulting in patient discomfort;

thirdly, the examination time of examination items in the chest and abdomen is long, the breath holding requirement is high (the breath holding time is 12-22 seconds, etc.); however, the patient often cannot insist on sufficient time and steal ventilation, and if the patient is directly examined by the magnetic resonance equipment without the adaptive training to achieve the effect, the patient often cannot hold breath for sufficient time to affect the examination effect.

In view of the above-mentioned characteristics of magnetic resonance examination, it is necessary to adapt to simulated magnetic resonance environment and breath holding training before nuclear magnetic resonance examination because the examined patient (especially claustrophobia or mentally handicapped person) cannot be effectively matched with the examination (fear, anxiety, etc.) due to the fact that the examined patient cannot know about the magnetic resonance equipment during the examination of chest and abdomen.

SUMMERY OF THE UTILITY MODEL

In view of one or more of the above-identified deficiencies in the prior art, the present invention provides a head-mounted training simulator for use prior to magnetic resonance examination.

In order to achieve the above object, the present invention provides a helmet-type training simulator used before magnetic resonance examination, which is characterized in that: comprises a helmet (1), a simulated sounder (2), an eye patch (3), a breath-holding respirator (4), a breathing sensor (5), a timer and an alarm; the analog sounder (2) is arranged on the helmet (1) and is used for generating the same noise as the noise generated in the magnetic resonance examination; the eye patch (3) is arranged on the helmet (1) and is used for covering the eyes of a user and isolating the light source; the breath-holding respirator (4) is arranged on the helmet (1) and is used for covering the mouth and the nose of a user and isolating air from entering; the breathing sensor (5) is arranged on the breath-holding breathing mask (4) and is used for detecting whether breathing action or breathing airflow exists in the breath-holding breathing mask (4); the analog sounder (2), the respiration sensor (5), the timer and the alarm are connected with the controller circuit.

With the above configuration, before a nuclear magnetic resonance examination (for example, a chest and abdomen examination item), a user (i.e., a patient) performs an adaptive simulation training using the helmet-type training simulator.

During the simulation training, a user (namely a patient) wears the helmet (1) on the head, covers the mouth and the nose through the eye shield (3) and the breath and breathing mask (4), then starts the power supply, starts the timer to count, and simultaneously the analog sounder (2) generates the same noise (70-90 decibels) as that generated during the magnetic resonance examination; when the breath sensor (5) detects that the mouth and the nose in the breath-holding respirator (4) generate breathing action or breathing airflow, the timer stops timing to obtain breath-holding time, and when the breath-holding time is less than the standard breath-holding time, the controller controls the alarm to give an alarm; and when the breath holding time is greater than or equal to the standard breath holding time (such as 20 seconds), the controller controls the alarm not to alarm. Therefore, the device can be used for carrying out breath holding adaptation, dark environment adaptation and noise adaptation on the patient before nuclear magnetic resonance examination, and the patient can feel the state of the nuclear magnetic resonance examination equipment in advance. When the patient adapts to the requirement of breath holding time simultaneously, behind dark surrounds and the noise environment, just can go to carry out the nuclear magnetic resonance inspection to guarantee the inspection effect, and solve current patient of being examined (especially claustrophobia or the not good person of psychology) and exist and can not effectively cooperate the drawback problem of accomplishing the inspection (fear, anxiety etc.) to reasons such as magnetic resonance equipment is not known.

By adopting the scheme, the method has the following characteristics:

firstly, the breath-hold breathing mask (4) covers the mouth and the nose of a patient and is used for providing a required closed condition for the detection of a breathing sensor (5), and the breathing sensor (5) is used for sensing the breathing action or the breathing airflow of the patient and determining the breath-hold termination time; when the breath holding time does not reach the standard, the controller can control the alarm to automatically alarm, and the patient needs to continue to adapt and train; finally, the breath holding training of the patient is carried out, and the standard time requirement of checking the breath holding is met;

secondly, the eyes of the user are covered by the eyeshade, and the light source can be isolated; an eyeshade part can be arranged to cover the eyes of the patient, so that the patient can adapt to a claustrophobic environment (dark environment) in advance, and the patient can feel the state of the nuclear magnetic resonance examination equipment in advance;

thirdly, because the analog sounder (2) generates the same noise (70-90 decibels) as that generated during magnetic resonance examination, the ears of the patient can hear the noise generated during magnetic resonance examination, so that the patient can feel the state of the examination equipment in advance;

fourthly, the helmet type is adopted, so that the patient can conveniently wear and train, the falling is not easy, and meanwhile, the helmet type is suitable for sitting and using in a waiting room.

Further, the two analog sounders (2) are arranged, and the two analog sounders (2) are respectively arranged on the left side and the right side of the helmet (1). The left ear and the right ear of the patient can both hear the noise during the magnetic resonance examination, and the state of the nuclear magnetic resonance examination equipment can be more truly felt.

Further, the eye patch (3) is arranged on the front side of the helmet (1) and can be adjusted in a vertically-displaced manner. The eye patch (3) can be adjusted upwards to open without covering the eyes, and the eye patch (3) can be adjusted downwards to cover the eyes, so that the switching adjustment of opening and closing can be realized. Before the training, this eye-shade (3) can upwards be opened, can reserve more spaces, avoids interfering, more makes things convenient for breath-hold respiratory mask (4) to cover patient's mouth nose, and the eyes are visible when taking breath-hold respiratory mask (4) simultaneously, more observes and convenient operation. After the training, this eye-shade (3) can upwards be opened, can reserve more spaces, avoid interfering, more conveniently pull out screen gas respiratory mask (4) and break away from patient's mouth and nose outward, and eyes are visible when breaking away from this screen gas respiratory mask (4) simultaneously, more observe and convenient operation.

Furthermore, a U-shaped frame (7) is fixedly arranged on the front side of the helmet (1), and the U-shaped frame (7) is provided with two vertical rod sections (7-1) and a middle transverse rod section (7-2); the left end and the right end of the eyeshade (3) are respectively connected with the upper parts of the two vertical rod sections (7-1) in a sliding way. Because the left end and the right end of the eyeshade (3) are respectively connected with the upper parts of the two vertical rod sections (7-1) in a sliding way, the eyeshade (3) can slide up and down, and further the up-and-down displacement adjustment is realized. Meanwhile, the left end and the right end of the eyeshade (3) slide synchronously and are stressed leftwards and rightwards, so that the movement stability and reliability are ensured.

Furthermore, the eye patch also comprises a tightening belt (6), the tightening belt (6) is positioned below the eye patch (3), and the tightening belt (6) is made of elastic materials; the breath-holding respirator (4) is fixed in the middle of the tensioning belt (6), and two ends of the tensioning belt (6) are respectively fixedly connected with the left side and the right side of the helmet (1). This taut area (6) are used for right screen gas respiratory mask (4) provide elasticity garigious power, and this screen gas respiratory mask (4) can guarantee the encapsulated situation when covering the mouth nose, can not relax, avoids leaking gas and influences respiratory sensor (5) signal detection. Simultaneously, the tensioning belt (6) can be outwards stretched, deformed and elongated, and then the breath-holding respirator (4) can be loosened and taken down from the mouth and the nose, so that the operation is convenient.

Furthermore, the tensioning belts (6) are distributed up and down in two. Can prevent this screen gas respiratory mask (4) luffing motion, these two taut bands (6) can guarantee that this screen gas respiratory mask (4) cover upper and lower distribution on the mouth nose simultaneously through two upper and lower dumps power, guarantee reliability and stability.

Furthermore, two tensioning belt stop rods (7-3) are fixedly arranged on the middle transverse rod section (7-2), and the two tensioning belt stop rods (7-3) are distributed at intervals from left to right; when the tension belt (6) is clamped on the two tension belt stop rods (7-3), the breath-holding respiratory mask (4) can be separated from covering the mouth and nose of a user. When the helmet is not used, the tensioning belt (6) can be clamped on the two tensioning belt stop rods (7-3) externally, and the position of the breath-holding respiratory mask (4) is close to the outside to reserve a space, so that the head can enter the helmet safely. After the training simulation, when the breath-holding respirator (4) is pulled out, the breath-holding respirator can be clamped on the two tightening belt stop rods (7-3), so that the head can be conveniently and safely separated from the helmet.

Furthermore, two bulges (7-31) are arranged on the tightening belt stop lever (7-3), and the two bulges (7-31) are distributed at intervals up and down. After the training simulation is completed, after the breath-holding respiratory mask (4) is taken down, when the tensioning belt (6) is clamped on the tensioning belt blocking rod (7-3), the tensioning belt (6) is limited between the two bulges (7-31), the tensioning belt (6) can be prevented from slipping off from the tensioning belt blocking rod (7-3), the phenomenon that the mouth and the nose are hit after rebounding can be avoided, and the use is safer. Meanwhile, when not in use, the tightening belt (6) can be ensured to be clamped on the tightening belt stop lever (7-3) and limited between the two bulges (7-31), so that the patient can wear the tightening belt for the next time.

Furthermore, the alarm adopts an audible and visual alarm.

Furthermore, a breathing tube (4-4) is arranged on the breath-holding breathing mask (4), an electromagnetic switch valve (8) is arranged on the breathing tube (4-4), and the electromagnetic switch valve (8) is in circuit connection with the controller.

The utility model discloses following beneficial effect has at least:

firstly, the breath-holding respirator of the utility model covers the mouth and nose of a patient and is used for providing a closed condition required by the detection of the breath sensor, and the breath sensor is used for sensing the breath action or the breath airflow of the patient and determining the termination time of breath holding; when the breath holding time does not reach the standard, the controller can control the alarm to automatically alarm, and the patient needs to continue to adapt and train; finally, the breath holding training of the patient is carried out, and the standard time requirement of checking the breath holding is met;

secondly, the utility model can cover the eyes of the user and isolate the light source through the eyeshade; an eyeshade part can be arranged to cover the eyes of the patient, so that the patient can adapt to a claustrophobic environment (dark environment) in advance, and the patient can feel the state of the nuclear magnetic resonance examination equipment in advance;

thirdly, the utility model can make the patient feel the state of the examination equipment in advance because the analog sounder generates the same noise (70-90 decibels) as that generated during the magnetic resonance examination, and the ears of the patient can hear the noise generated during the magnetic resonance examination;

fourth, the utility model discloses owing to adopt the helmet-type, make things convenient for the patient to wear the training, be difficult for dropping, be suitable for simultaneously and sit the use in waiting the room.

Fifth, the utility model discloses because the eye-shade sets up in the helmet front side and can displacement from top to bottom adjust. Before training, the eyeshade can be opened upwards to reserve more space, so that interference is avoided, the breath-holding respirator can cover the mouth and the nose of a patient conveniently, meanwhile, the eyes can be seen when the breath-holding respirator is taken on, so that the operation is convenient, after training, the eyeshade can be opened upwards to reserve more space, so that interference is avoided, the breath-holding respirator can be pulled outwards to be separated from the mouth and the nose of the patient conveniently, and the eyes can be seen when the breath-holding respirator is separated from the mouth and the nose of the patient, so that the operation is convenient;

sixth, the utility model is provided with a U-shaped frame on the front side of the helmet, and the U-shaped frame is provided with two vertical rod sections and a middle cross rod section; because the left end and the right end of the eyeshade are respectively connected with the upper parts of the two vertical rod sections in a sliding way, the eyeshade can slide up and down, and further the up-and-down displacement adjustment is realized. Meanwhile, the left end and the right end of the eyeshade slide synchronously and are stressed leftwards and rightwards, so that the movement stability and reliability are ensured;

seventh, the utility model discloses because this screen breathing mask is fixed take the middle part, this take both ends to take respectively with helmet left and right sides rigid coupling. The tensioning belt is used for providing elastic tension for the breath-holding respiratory mask, and the breath-holding respiratory mask can be in a closed state when covering the mouth and the nose, and cannot be loosened, so that air leakage is avoided and the signal detection of the respiratory sensor is influenced. Simultaneously, the tensioning belt can be outwards stretched, deformed and elongated, and then the breath-holding respiratory mask can be loosened and taken down from the mouth and the nose, so that the operation is convenient.

Eighth, the utility model discloses because the taut area has two and distributes from top to bottom, can prevent this screen gas respiratory mask luffing motion, and these two taut areas can guarantee that this screen gas respiratory mask covers simultaneously and distributes from top to bottom on the mouth nose through two upper and lower dumps power, guarantees reliability and stability.

Ninth, the utility model is characterized in that two tensioning belt stop rods are fixedly arranged on the middle cross rod section and are distributed at intervals on the left and the right; when the helmet is not used, the tensioning belt can be clamped on the two tensioning belt blocking rods, and the position of the breath-holding respirator is close to the outside to reserve a space, so that the head can conveniently and safely enter the helmet. After the training simulation, when the breath-holding respirator is pulled out, the breath-holding respirator can be clamped on the two tightening belt blocking rods, and the head can be conveniently and safely separated from the helmet.

Tenth, the utility model discloses because be equipped with two archs on the taut tape shelves pole, interval distribution about these two archs accomplishes the back in the training simulation, the back is taken off to the breath mask, the taut tape is blocked by the outer time on the taut tape shelves pole, and this taut tape is used for spacing between two archs, can prevent this taut tape from following slippage on the taut tape shelves pole, can avoid beating the oronasal after kick-backing, it is safer to use. Meanwhile, when the novel belt is not used, the tensioning belt can be guaranteed to be clamped on the tensioning belt stop lever and limited between the two bulges, and the novel belt is convenient for a patient to wear next time.

Drawings

Fig. 1 is a perspective view of the present invention in training simulation.

Fig. 2 is a perspective view (looking in the other direction) of the present invention during a training simulation.

Fig. 3 is a left side view of the present invention in training simulation.

Fig. 4 is a front view of the present invention in a training simulation.

Fig. 5 is a perspective view of the present invention when not in use.

Fig. 6 is a left side view of the present invention when not in use.

Fig. 7 is a schematic circuit diagram of the present invention.

Fig. 8 is a perspective view of a breath-hold mask.

FIG. 9 is a cross-sectional view of a breath-hold mask.

Detailed Description

The invention will be further explained with reference to the following figures and examples:

example (b): referring to fig. 1-8, a helmet-type training simulator used before magnetic resonance examination comprises a helmet 1, a simulated sounder 2, an eye mask 3, a breath-holding respiratory mask 4, a respiratory sensor 5, a timer and an alarm.

The helmet 1 generally has three parts, an outer shell, a soft lining and a suspension. The helmet 1 can adopt the existing common structural design, so the description is omitted.

The analog sound generator 2 is arranged on the helmet 1 and is used for generating the same noise (such as 70-90 decibels) as that generated during the magnetic resonance examination.

The analog sound generator 2 may be a horn or a speaker.

In the present embodiment, there are two analog sound generators 2, and the two analog sound generators 2 are respectively disposed on the left and right sides of the helmet 1. When the magnetic resonance examination device is used, the left ear and the right ear of a patient can both hear the noise generated during magnetic resonance examination, and the state of the magnetic resonance examination device can be more truly sensed.

Wherein the eye shield 3 is provided on the front side of the helmet 1, and serves to shield both eyes of a user and to isolate a light source.

Preferably, the eye patch 3 is made of black or dark color.

In the present embodiment, the eyeshade 3 is preferably made of plastic. In other embodiments, the eye patch 3 may be made of cloth.

Wherein, the breath-hold mask 4 sets up helmet 1 front side is located eye-shade 3 below, and this breath-hold mask 4 is used for covering user's mouth nose and can keep apart the air admission.

Wherein, respiratory sensor 5 sets up in hold-on breath mask 4 for whether there is respiratory action or respiratory airflow in the detection hold-on breath mask 4.

Preferably, the breath sensor 5 is used to detect the presence or respiratory airflow within the breath-hold mask 4. The induction end of the respiration sensor 5 is communicated with the interior of the breath-holding respiratory mask 4 or the respiration sensor 5 is arranged in the inner cavity of the breath-holding respiratory mask 4. When the air flow or the air pressure change exists in the breath-holding respiratory mask 4, the air flow or the air pressure change in the sealed space in the breath-holding respiratory mask 4 can be caused to change when the patient inhales through the mouth and the nose.

Referring to fig. 8, the breath-holding respiratory mask 4 comprises a respiratory mask shell 4-1, an inner cavity 4-2 is arranged in the respiratory mask shell 4-1, and a sealing rubber sleeve 4-3 is arranged on the edge of the mouth of the inner cavity 4-2. The respiration sensor 5 is arranged in the inner cavity 4-2.

Referring to fig. 9, a breathing tube 4-4 is disposed on the breath-holding breathing mask 4, an electromagnetic switch valve 8 is disposed on the breathing tube 4-4, and the electromagnetic switch valve 8 is electrically connected to the controller. After the breath-hold breathing mask 4 covers the mouth and the nose, when the electromagnetic switch valve 8 is opened, the atmosphere and the breath-hold breathing mask 4 are communicated by the breathing tube 4-4, and normal breathing can be realized at the moment. After the breath-hold breathing mask 4 covers the mouth and the nose, when the electromagnetic switch valve 8 is closed, the atmosphere and the breath-hold breathing mask 4 cannot be communicated by the breathing tube 4-4, and the breath cannot be normally breathed at the moment.

Specifically, in a normal state, the electromagnetic opening/closing valve is in an open state. Due to the arrangement of the electromagnetic switch valve 8, when a patient wears the helmet and then lies in a proper position, the breath-holding respiratory mask is positioned at the mouth and nose part, the breath-holding respiratory mask can normally ventilate at the time, the breath holding is started after the patient is ready to hold breath, and the patient enters a breath holding state; therefore, the problem that the user cannot breathe after the mouth and the nose are sealed before the user wears the breath-holding respirator and does not start the respirator can be avoided.

Therefore, the electromagnetic switch valve 8 can adopt a normally open design, so that air can normally circulate and breathe before the simulation training power switch is started.

The electromagnetic switch valve 8, the analog sounder 2, the respiration sensor 5, the timer and the alarm are connected with the controller circuit.

The utility model discloses at nuclear magnetic resonance inspection if chest abdomen examination item is present, the user uses above-mentioned helmet-type training analogue means earlier to adapt to the simulation training promptly.

During the simulation training, a user, namely a patient wears the helmet 1 on the head, and covers the mouth and the nose through the eye mask 3 and the breath-hold respirator 4; then starting the power supply, switching the electromagnetic switch valve 8 to a closed state, generating the same noise (70-90 decibels) as that generated during the magnetic resonance examination by the analog sounder 2, and starting timing by the timer; when the breath sensor 5 detects that the mouth and the nose in the breath-holding respirator 4 generate breathing action or breathing airflow, the timer stops timing to obtain breath-holding time, and when the breath-holding time is smaller than the standard breath-holding time, the controller controls the alarm to give an alarm; and when the breath holding time is greater than or equal to the standard breath holding time (such as 20 seconds), the controller controls the alarm not to alarm. Therefore, the device can be used for carrying out breath holding adaptation, dark environment adaptation and noise adaptation on the patient before nuclear magnetic resonance examination, and the patient can feel the state of the nuclear magnetic resonance examination equipment in advance. Adapt to the requirement of holding the screen gas time simultaneously when the patient, behind dark surrounds and the noise environment, just can go to carry out the nuclear magnetic resonance inspection to guarantee the inspection effect, and solve present patient that is examined especially claustrophobia or the bad person of psychology and exist and can not effectively cooperate the drawback problem of accomplishing inspection fear, anxiety etc. to reasons such as magnetic resonance equipment is not known.

The following characteristics were used and analyzed as follows:

firstly, the breath-hold breathing mask 4 covers the mouth and nose of a patient and is used for providing a required closed condition for the detection of the breathing sensor 5, and the breathing sensor 5 is used for sensing the breathing action or the breathing airflow of the patient and determining the breath-hold termination time; when the breath holding time does not reach the standard, the controller can control the alarm to automatically alarm, and the patient needs to continue to adapt and train; finally, the breath holding training of the patient is carried out, and the standard time requirement of checking the breath holding is met;

secondly, the eyes of the user are covered by the eyeshade, and the light source can be isolated; an eyeshade part can cover the eyes of the patient, so that the patient adapts to the dark environment of the claustrophobic environment in advance, and the patient can feel the state of the nuclear magnetic resonance examination equipment in advance;

thirdly, because the analog sounder 2 generates 70-90 decibels of noise which is the same as that generated during magnetic resonance examination, the ears of the patient can hear the noise generated during magnetic resonance examination, so that the patient can feel the state of the examination equipment in advance;

Referring to fig. 2 and 5, in the present embodiment, the eyecup 3 is provided on the front side of the helmet 1 and is displaceable up and down.

Referring to fig. 5-6, the eye flap 3 can be opened up without covering the eyes. Referring to fig. 2-3, the eye mask 3 can be adjusted downward to cover the eyes, and the switching adjustment of opening and closing can be realized.

Referring to fig. 2-3 and 5-6, before training, the eye mask 3 can be opened upwards to leave more space, so as to avoid interference, facilitate the breath-holding respirator 4 to cover the mouth and nose of a patient, and simultaneously, the eyes can be seen when the breath-holding respirator 4 is worn, so that the operation is more convenient for observation. After the training, this eye-shade 3 can upwards be opened, can reserve more spaces, avoids interfering, more conveniently draws the screen breathing mask 4 outward and breaks away from patient's mouth and nose, and eyes are visible when breaking away from this screen breathing mask 4 simultaneously, more observe and convenient operation.

Referring to fig. 2-6, specifically, a U-shaped frame 7 is fixedly arranged on the front side of the helmet 1, and the U-shaped frame 7 has two upright rod sections 7-1 and a middle cross rod section 7-2; the two vertical rod sections 7-1 are positioned at the left side and the right side of the middle transverse rod section 7-2.

Wherein, the left and right ends of the eyeshade 3 are respectively connected with the upper parts of the two vertical rod sections 7-1 in a sliding way. Because the left end and the right end of the eyeshade 3 are respectively connected with the upper parts of the two vertical rod sections 7-1 in a sliding way, the eyeshade 3 can slide up and down, and further the up-and-down displacement adjustment is realized. Meanwhile, the left end and the right end of the eyeshade 3 slide synchronously and are stressed leftwards and rightwards, so that the movement stability and reliability are ensured.

Specifically, two sleeve parts 3-1 are respectively arranged at the left end and the right end of the eyeshade 3, and the two sleeve parts 3-1 are respectively in sliding fit with the upper parts of the two vertical rod sections 7-1.

In addition, referring to fig. 5, the lower edge of the middle portion of the eyecup 3 is provided with an escape groove 3-2, and the escape groove 3-2 is positioned in a V-shape or an inverted trapezoid. Can better avoid the mask arm part of wearing the screen breathing mask 4 when wearing the screen breathing mask 4.

Referring to fig. 1-6, in addition, a tightening strap 6 is also included, the tightening strap 6 is positioned below the eyeshade 3, and the tightening strap 6 is made of elastic material; the breath-holding respirator 4 is fixed in the middle of the tensioning belt 6, and two ends of the tensioning belt 6 are respectively fixedly connected with the left side and the right side of the helmet 1. This taut area 6 is used for right screen gas respiratory mask 4 provides elasticity garrulous power, and this screen gas respiratory mask 4 can guarantee the encapsulated situation when covering the mouth nose, can not relax, avoids leaking gas and influences 5 signal detection of respiratory sensor. Meanwhile, the tensioning belt 6 can be outwards stretched, deformed and elongated, and then the breath-holding respiratory mask 4 can be loosened and taken down from the mouth and the nose, so that the operation is convenient.

With reference to fig. 1 to 6, the tightening strap 6 has two parts, which are arranged one above the other. Can prevent this screen gas respiratory mask 4 luffing motion, these two taut bands 6 can guarantee that this screen gas respiratory mask 4 covers simultaneously and distributes on the mouth nose from top to bottom through two upper and lower dumps power, guarantee reliability and stability.

Referring to fig. 1-6, further, two tightening belt stop rods 7-3 are fixedly arranged on the middle cross rod section 7-2, and the two tightening belt stop rods 7-3 are distributed at left and right intervals.

Referring to fig. 5-6, the breath-hold mask 4 is disengaged from covering the nose and mouth of the user when the strap 6 is externally snapped onto the strap bars 7-3. Meanwhile, when the helmet is not used, the tensioning belt 6 can be clamped on the two tensioning belt stop rods 7-3, and the position of the breath-holding respiratory mask 4 is close to the outside to reserve a space, so that the head can enter the helmet safely. After the training simulation, when the breath-holding respirator 4 is pulled out, the breath-holding respirator can be clamped on the two tightening belt stop rods 7-3, and the head can be conveniently and safely separated from the helmet.

Referring to fig. 5-6, further, two protrusions 7-31 are provided on the tightening belt stop 7-3, and the two protrusions 7-31 are spaced from each other. Referring to fig. 5-6, after the training simulation is completed and the breath-holding respiratory mask 4 is removed, the tightening belt 6 is clamped on the tightening belt stop bar 7-3, and the tightening belt 6 is limited between the two protrusions 7-31, so that the tightening belt 6 can be prevented from slipping off the tightening belt stop bar 7-3, the mouth and nose can be prevented from being hit after rebounding, and the use is safer. Meanwhile, when not in use, the tightening belt 6 can be ensured to be clamped on the tightening belt stop lever 7-3 and limited between the two bulges 7-31, thereby being convenient for the patient to wear for the next time.

Furthermore, the alarm adopts an audible and visual alarm. The audible and visual alarm is arranged on the helmet 1.

In addition, a display and a power switch may be provided on the helmet 1. The display is used for displaying breath holding time in real time during training simulation. And the power switch is used for power on or off. When the power switch is started, a circuit formed by the analog sounder 2, the respiration sensor 5, the timer, the alarm, the controller and the like enters a working state.

In addition, a power supply is disposed in the helmet 1. Preferably, the power source is a lithium battery and is rechargeable. The power supply is used for supplying power to the circuit formed by the electromagnetic switch valve 8, the analog sounder 2, the respiration sensor 5, the timer, the alarm, the controller and the like when in work. The power switch can be arranged on the helmet 1 and adopts a push switch.

Referring to fig. 1-7, in operation, the helmet 1 is worn, the eyeshade 3 and the breath-holding respiratory mask 4 are worn, the power switch is pressed, the controller controls the first relay KM1, the electromagnetic switch valve 8 and the second relay KM2 to work simultaneously, and then the timer starts to time;

at this time, referring to fig. 7, the controller is connected with the analog sound generator 2 through the first relay KM1, the analog sound generator 2 is connected with the power circuit, when the power switch is pressed to start working, the contact of the first relay KM1 is closed, and the circuit of the analog sound generator 2 is connected to sound working;

at this time, referring to fig. 7, the controller is connected with an alarm through a second relay KM2, the alarm is connected with a power circuit, when the power switch is pressed to start working, the contact of the second relay KM2 is disconnected, and the alarm does not alarm;

at this time, referring to fig. 7, when the power switch is pressed to start working, because the electromagnetic switch valve 8 is closed, the atmosphere and the breath-holding respiratory mask 4 cannot be communicated with each other, and the inner cavity of the breath-holding respiratory mask 4 is in a closed state;

then, when the breath sensor 5 detects that the mouth and the nose in the breath-holding respiratory mask 4 generate respiratory action or respiratory airflow, the timer stops timing to obtain breath-holding time, when the breath-holding time is smaller than the standard breath-holding time, the controller controls the second relay KM2 and the contact to be closed, the alarm circuit is communicated to alarm, and meanwhile, the controller controls the display to display unqualified; when the breath-hold time is greater than or equal to the standard breath-hold time (such as 20 seconds), the controller controls the second relay KM2 to keep the contact open, the alarm does not give an alarm, and the controller controls the controllable display to display unqualified display.

Specifically, the first relay KM1 may be a normally closed relay, and the second relay KM2 may be a normally open relay.

After the mode is completed, the controller can control the first relay KM1 to be reset to a normally closed state, the second relay KM2 to be reset to a normally open state and the electromagnetic switch valve 8 to be reset to an open state through a reset button or overtime setting; and finally, manually closing the power switch.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims

1. A head-mounted training simulator used before magnetic resonance examination is characterized in that: comprises a helmet (1), a simulated sounder (2), an eye patch (3), a breath-holding respirator (4), a breathing sensor (5), a timer and an alarm;

the analog sounder (2) is arranged on the helmet (1) and is used for generating the same noise as the noise generated in the magnetic resonance examination;

the eye patch (3) is arranged on the helmet (1) and is used for covering the eyes of a user and isolating the light source;

the breath-holding respirator (4) is arranged on the helmet (1) and is used for covering the mouth and the nose of a user and isolating air from entering;

the breathing sensor (5) is arranged on the breath-holding breathing mask (4) and is used for detecting whether breathing action or breathing airflow exists in the breath-holding breathing mask (4);

the analog sounder (2), the respiration sensor (5), the timer and the alarm are connected with the controller circuit.

2. A head-mounted training simulator for use before magnetic resonance examination as claimed in claim 1 wherein: the two analog sounders (2) are arranged on the left side and the right side of the helmet (1) respectively.

3. A helmet-mounted training simulator for use before magnetic resonance examination as claimed in claim 2, wherein: the eye patch (3) is arranged on the front side of the helmet (1) and can be adjusted in a vertically-displaced manner.

4. A head-mounted training simulator for use before a magnetic resonance examination as claimed in claim 3, wherein: a U-shaped frame (7) is fixedly arranged on the front side of the helmet (1), and the U-shaped frame (7) is provided with two vertical rod sections (7-1) and a middle transverse rod section (7-2); the left end and the right end of the eyeshade (3) are respectively connected with the upper parts of the two vertical rod sections (7-1) in a sliding way.

5. A head-mounted training simulator for use before a magnetic resonance examination as claimed in claim 4, wherein: the eye patch is characterized by further comprising a tensioning belt (6), wherein the tensioning belt (6) is positioned below the eye patch (3), and the tensioning belt (6) is made of elastic materials;

the breath-holding respirator (4) is fixed in the middle of the tensioning belt (6), and two ends of the tensioning belt (6) are respectively fixedly connected with the left side and the right side of the helmet (1).

6. A head-mounted training simulator for use before magnetic resonance examination as claimed in claim 5 wherein: the two tensioning belts (6) are distributed up and down.

7. A simulation device for helmet-mounted training before magnetic resonance examination as claimed in claim 5 or 6, wherein: two tensioning belt stop rods (7-3) are fixedly arranged on the middle transverse rod section (7-2), and the two tensioning belt stop rods (7-3) are distributed at intervals left and right;

when the tension belt (6) is clamped on the two tension belt stop rods (7-3), the breath-holding respiratory mask (4) can be separated from covering the mouth and nose of a user.

8. A head-mounted training simulator for use prior to magnetic resonance examination as claimed in claim 7 wherein: two bulges (7-31) are arranged on the tightening belt stop lever (7-3), and the two bulges (7-31) are distributed at intervals up and down.

9. A head-mounted training simulator for use before magnetic resonance examination as claimed in claim 1 wherein: the alarm adopts an audible and visual alarm.

10. A head-mounted training simulator for use before magnetic resonance examination as claimed in claim 1 wherein: the breath-holding respirator is characterized in that a breathing tube (4-4) is arranged on the breath-holding respirator (4), an electromagnetic switch valve (8) is arranged on the breathing tube (4-4), and the electromagnetic switch valve (8) is in circuit connection with the controller.