CN109887370B - Helmet type training simulator used before magnetic resonance examination - Google Patents
Helmet type training simulator used before magnetic resonance examination Download PDFInfo
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- CN109887370B CN109887370B CN201910329358.1A CN201910329358A CN109887370B CN 109887370 B CN109887370 B CN 109887370B CN 201910329358 A CN201910329358 A CN 201910329358A CN 109887370 B CN109887370 B CN 109887370B
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- 230000029058 respiratory gaseous exchange Effects 0.000 claims abstract description 115
- 238000006073 displacement reaction Methods 0.000 claims description 7
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- 239000013013 elastic material Substances 0.000 claims description 3
- 238000004088 simulation Methods 0.000 abstract description 19
- 238000005481 NMR spectroscopy Methods 0.000 abstract description 17
- 230000006978 adaptation Effects 0.000 abstract description 12
- 210000003128 head Anatomy 0.000 description 8
- 230000000241 respiratory effect Effects 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 210000001015 abdomen Anatomy 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 208000019901 Anxiety disease Diseases 0.000 description 3
- 206010009244 Claustrophobia Diseases 0.000 description 3
- 230000036506 anxiety Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 208000019899 phobic disease Diseases 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The invention discloses a helmet type training simulator used before magnetic resonance examination, which comprises a helmet, a simulation sounder, an eye shield, a breath-hold breathing cover, a breathing sensor, a timer and an alarm; the simulated sounder is arranged on the helmet and is used for generating the same noise as that generated during magnetic resonance examination; the eye cover is arranged on the helmet and is used for covering eyes of a user and isolating a light source; the breath-hold breathing cover is arranged on the helmet and is used for covering the mouth and nose of a user and isolating air from entering; the breath sensor is arranged on the breath-hold breathing cover and is used for detecting whether a breathing action or a breathing airflow exists in the breath-hold breathing cover; the simulated sounder, the respiration sensor, the timer and the alarm are connected with the controller through circuits. The invention is used for shielding gas adaptation, dark environment adaptation and noise adaptation for the patient before nuclear magnetic resonance examination, and can lead the patient to feel the state of nuclear magnetic resonance examination equipment in advance.
Description
Technical Field
The invention belongs to a helmet type training simulator used before magnetic resonance examination.
Background
The existing magnetic resonance examination has the following characteristics:
firstly, a magnetic resonance examination room is closed, a magnet space is small, and the environment is dark (especially for claustrophobic patients, adaptation is needed);
second, magnetic resonance is noisy (70-90 db) in the examination, resulting in patient inadaptation;
thirdly, the examination time of the chest and abdomen examination project is long, and the breath-hold requirement is high (the breath-hold time period is 12-22 seconds unequal); however, the patient often cannot hold enough time to steal ventilation, and if the patient is not properly trained to achieve the effect, the patient can directly check the magnetic resonance equipment, and the patient often cannot hold enough time to affect the checking effect.
In view of the above-described several characteristics in the magnetic resonance examination, in the chest and abdomen examination, the examined patient (especially claustrophobia or psychology-impaired person) has a disadvantage that the examination (fear, anxiety, etc.) cannot be completed effectively due to the unaware of the magnetic resonance apparatus, etc., so that it is highly necessary to adapt to the simulated magnetic resonance environment and breath-hold training before the nuclear magnetic resonance examination.
Disclosure of Invention
In view of one or more of the above-described deficiencies in the prior art, the present invention provides a helmet-type 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 for use before magnetic resonance examination, which is characterized in that: comprises a helmet (1), an analog sounder (2), an eye shade (3), a breath-hold breathing cover (4), a breathing sensor (5), a timer and an alarm; the simulated sounder (2) is arranged on the helmet (1) and is used for generating the same noise as that generated during magnetic resonance examination; the eyeshade (3) is arranged on the helmet (1) and is used for covering eyes of a user and isolating a light source; the breath-hold breathing cover (4) is arranged on the helmet (1) and is used for covering the mouth and nose of a user and isolating air from entering; the breath sensor (5) is arranged on the breath-hold breathing cover (4) and is used for detecting whether a breathing action or a breathing airflow exists in the breath-hold breathing cover (4); the simulated sounder (2), the respiration sensor (5), the timer and the alarm are connected with the controller through circuits.
With the above structure, the user (i.e., patient) performs adaptation simulation training by the helmet type training simulation device before nuclear magnetic resonance examination (such as chest and abdomen examination).
In the simulation training, a user (i.e. a patient) takes a helmet (1) on the head, covers the nose and the mouth through an eye cover (3) and a breath-hold breathing cover (4), then starts a power supply to start the timer, and simultaneously the simulation sound generator (2) generates the same noise (70-90 dB) as that generated in the magnetic resonance examination; when the breath sensor (5) detects that the breath action or the breathing airflow is generated in the mouth and nose of the breath-hold breathing cover (4), the timer stops timing to obtain breath-hold time, and when the breath-hold time is smaller than the standard breath-hold time, the controller controls the alarm to alarm; and the controller controls the alarm not to alarm when the breath-hold time is greater than or equal to a standard breath-hold time (e.g., 20 seconds). Therefore, the method can realize breath-hold adaptation, dark environment adaptation and noise adaptation for the patient before nuclear magnetic resonance examination, and can lead the patient to feel the state of nuclear magnetic resonance examination equipment in advance. When the patient meets the requirements of breath-hold time, the nuclear magnetic resonance examination can be carried out after the patient is in dark environment and noise environment, so as to ensure the examination effect, and solve the problem that the existing examined patient (especially claustrophobia or psychology ill) has the defect that the examination (fear, anxiety and the like) can not be effectively matched with the magnetic resonance equipment for the reasons of unaware and the like.
By adopting the scheme, the method has the following characteristics:
firstly, since the breath-hold respiratory mask (4) covers the mouth and nose of a patient, the breath-hold respiratory mask is used for providing a closed condition required by detection of the respiratory sensor (5), and the respiratory sensor (5) is used for sensing respiratory action or respiratory airflow of the patient and determining breath-hold termination time; when the breath-hold time does not reach the standard, the controller can control the alarm to automatically alarm, and the patient needs to adapt and train again; finally, the breath of the patient is trained to reach the standard time requirement of the breath-hold examination;
second, since both eyes of the user are covered by the eye cover, the light source can be isolated; the eye shield part can cover eyes of a patient, so that the patient can adapt to a claustrophobic environment (dark environment) in advance, and the patient can feel the state of nuclear magnetic resonance examination equipment in advance;
thirdly, as the simulated sounder (2) generates the same noise (70-90 dB) as that generated during magnetic resonance examination, the patient's ear can hear the noise generated during the magnetic resonance examination, so that the patient can feel the state of the examination equipment in advance;
fourth, adopt the helmet-type to use, make things convenient for the patient to wear the training, be difficult for dropping, be suitable for simultaneously waiting indoor sitting and use.
Further, the two analog sounders (2) are arranged on the left side and the right side of the helmet (1), and the two analog sounders (2) are respectively arranged on the left side and the right side of the helmet (1). Noise generated during magnetic resonance examination can be heard by the left ear and the right ear of the patient, and the state of the nuclear magnetic resonance examination equipment can be sensed more truly.
Further, the eyeshade (3) is arranged at the front side of the helmet (1) and can be adjusted in an up-and-down displacement way. The eyeshade (3) can be adjusted upwards to open without covering eyes, and the eyeshade (3) can be adjusted downwards to cover eyes, so that the switching adjustment of opening and covering can be realized. Before training, the eyeshade (3) can be opened upwards, so that more space can be reserved, interference is avoided, the breath-hold breathing mask (4) is more convenient to cover the mouth and nose of a patient, eyes are visible when the breath-hold breathing mask (4) is taken, and the operation is more convenient to observe. After training, the eyeshade (3) can be opened upwards, so that more space can be reserved, interference is avoided, the breath-hold breathing mask (4) is pulled outwards more conveniently to be separated from the mouth and nose of a patient, eyes are visible when the breath-hold breathing mask (4) is separated, and the operation is more convenient to observe.
Further, 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 cross 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. 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, so that the eyeshade (3) can slide up and down, and further up and down displacement adjustment is realized. Meanwhile, the left end and the right end of the eyeshade (3) synchronously slide and are stressed left and right so as to ensure the stability and the reliability of movement.
Further, the eye mask also comprises a tightening belt (6), wherein the tightening belt (6) is positioned below the eye mask (3), and the tightening belt (6) is made of elastic materials; the breath-hold breathing mask (4) is fixed in the middle of the tightening belt (6), and two ends of the tightening belt (6) are fixedly connected with the left side and the right side of the helmet (1) respectively. The tensioning belt (6) is used for providing elastic force for the breath-hold breathing mask (4), and the breath-hold breathing mask (4) can ensure a closed state when covering the mouth and nose, can not relax, and avoids air leakage to influence the signal detection of the breathing sensor (5). Meanwhile, the tightening belt (6) can be pulled outwards to deform and stretch, and then the breath-hold breathing mask (4) can be loosened and taken down from the mouth and nose, so that the operation is convenient.
Further, the tightening strap (6) has two tightening straps and is distributed up and down. The breath-hold breathing mask (4) can be prevented from swinging up and down, and the two tightening belts (6) can ensure that the breath-hold breathing mask (4) is simultaneously distributed on the mouth and nose in a covering way through the upper and lower two pull forces, so that the reliability and the stability are ensured.
Further, two tightening belt blocking rods (7-3) are fixedly arranged on the middle cross rod section (7-2), and the two tightening belt blocking rods (7-3) are distributed at left and right intervals; when the tightening strap (6) is clamped on the two tightening strap stop rods (7-3), the breath-hold breathing mask (4) can be separated from the mask for covering the mouth and nose of a user. When not in use, the tightening strap (6) can be clamped on the two tightening strap baffle rods (7-3) outwards, and the position of the breath-hold breathing mask (4) is outside to leave a space, so that the head can safely enter the helmet conveniently. After training simulation, when the breath-hold breathing mask (4) is pulled out, the breath-hold breathing mask can be clamped on the two tightening strap baffle rods (7-3) outwards, and the head can be conveniently separated from the helmet safely.
Further, two protrusions (7-31) are arranged on the tightening strap baffle rod (7-3), and the two protrusions (7-31) are distributed at intervals up and down. After the training simulation is completed, after the breath-hold breathing mask (4) is taken down, when the tightening strap (6) is clamped on the tightening strap baffle rod (7-3), the tightening strap (6) is limited between the two bulges (7-31), so that the tightening strap (6) can be prevented from slipping off from the tightening strap baffle rod (7-3), the nose and mouth can be prevented from being hit after rebound, and the use is safer. Meanwhile, when the belt is not used, the tightening belt (6) can be ensured to be clamped on the tightening belt stop rod (7-3) and limited between the two bulges (7-31), so that the belt is convenient for the patient to wear next time.
Further, the alarm adopts an audible and visual alarm.
Further, a breathing tube (4-4) is arranged on the breath-hold breathing cover (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 invention has at least the following beneficial effects:
firstly, the breath-hold breathing mask covers the mouth and the nose of a patient and is used for providing a closed condition required by detection of a breath sensor, and the breath sensor is used for sensing the breathing action or the breathing airflow of the patient and determining the breath-hold termination time; when the breath-hold time does not reach the standard, the controller can control the alarm to automatically alarm, and the patient needs to adapt and train again; finally, the breath of the patient is trained to reach the standard time requirement of the breath-hold examination;
second, the invention can cover eyes of a user through the eyeshade and isolate the light source; the eye shield part can cover eyes of a patient, so that the patient can adapt to a claustrophobic environment (dark environment) in advance, and the patient can feel the state of nuclear magnetic resonance examination equipment in advance;
third, the invention can make the patient feel the state of the examination equipment in advance because the simulated sounder generates the same noise (70-90 db) as the magnetic resonance examination;
fourth, the helmet type portable device is convenient for patients to wear and train, is not easy to fall off, and is suitable for sitting in a waiting room.
Fifth, the eye shield is arranged at the front side of the helmet and can be adjusted in an up-and-down displacement manner. Before training, the eyeshade can be opened upwards to leave more space, so that interference is avoided, the breath-hold breathing mask is more convenient to cover the mouth and the nose of a patient, eyes are visible when the breath-hold breathing mask is taken on, and the eyeshade is more observed and convenient to operate;
sixthly, the U-shaped frame is fixedly arranged on the front side of the helmet, and is provided with two vertical rod sections and a middle cross rod section; 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, so that the eyeshade can slide up and down, and further the up-down displacement adjustment is realized. Meanwhile, the left end and the right end of the eye cover synchronously slide and bear force left and right so as to ensure the stability and the reliability of movement;
seventh, because the breath-hold breathing mask is fixed in the middle of the tightening strap, the two ends of the tightening strap are fixedly connected with the left side and the right side of the helmet respectively. The tightening strap is used for providing elastic force for the breath-hold breathing mask, and the breath-hold breathing mask can ensure a closed state when covering the mouth and nose, cannot relax, and avoids air leakage to influence the signal detection of the breathing sensor. Meanwhile, the tightening strap can be pulled outwards to deform and stretch, and then the breath-hold breathing mask can be loosened and taken down from the mouth and nose, so that the operation is convenient.
Eighth, because the two tightening belts are distributed up and down, the invention can prevent the breath-hold breathing mask from swinging up and down, and the two tightening belts can ensure that the breath-hold breathing mask is distributed on the mouth and nose up and down at the same time by the up and down force of the two tightening belts, thereby ensuring the reliability and stability.
Ninth, because the middle cross rod section is fixedly provided with two tightening strap stop bars, the two tightening strap stop bars are distributed at left and right intervals; when not in use, the tightening strap can be clamped on the two tightening strap baffle rods, and the breath-hold breathing mask is positioned outside to leave a space, so that the head can safely enter the helmet. After training simulation, the breath-hold breathing mask can be clamped on the two tightening strap baffle rods when being pulled out, and the head can be conveniently separated from the helmet in a safe way.
And the tightening belt is used for limiting the tightening belt between the two bulges, so that the tightening belt can be prevented from slipping off the tightening belt stop lever, the tightening belt can be prevented from striking the nose and the mouth after rebound, and the use is safer. Meanwhile, when the belt is not used, the tightening belt can be ensured to be clamped on the tightening belt stop lever and limited between the two protrusions, so that the belt is convenient for a patient to wear next time.
Drawings
Fig. 1 is a perspective view of the present invention at the time of training simulation.
Fig. 2 is a perspective view (looking in the other direction) of the present invention at the training simulation.
Fig. 3 is a left side view of the present invention in a training simulation.
Fig. 4 is a front view of the present invention during 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 is further illustrated by the following examples in conjunction with the accompanying drawings:
examples: referring to fig. 1-8, a helmet-type training simulator for use before magnetic resonance examination comprises a helmet 1, a simulated sounder 2, an eye shield 3, a breath-hold cover 4, a respiration sensor 5, a timer and an alarm.
The helmet 1 generally has three parts, a shell, a liner and a suspension. The helmet 1 may be designed with a conventional structure, and thus will not be described in detail.
The analog sounder 2 is arranged on the helmet 1 and is adapted to generate the same noise (e.g. 70-90 db) as when examined by magnetic resonance.
The analog sounder 2 may employ a horn or speaker.
In this embodiment, the analog sounder 2 has two analog sounders 2, and the two analog sounders 2 are respectively disposed on the left and right sides of the helmet 1. When the nuclear magnetic resonance examination device is used, the left ear and the right ear of a patient can hear noise during the magnetic resonance examination, and the state of the nuclear magnetic resonance examination device can be sensed more truly.
Wherein the eye mask 3 is provided on the front side of the helmet 1, and serves to cover both eyes of a user and isolate a light source.
Preferably, the eye mask 3 is made of black or dark color.
In this embodiment, the eye mask 3 is preferably made of plastic. While in other embodiments, the eye shield 3 may be a cloth.
Wherein, the breath-hold cover 4 is arranged at the front side of the helmet 1 below the eyeshade 3, and the breath-hold cover 4 is used for covering the mouth and nose of a user and can isolate air from entering.
Wherein the breath sensor 5 is arranged in the breath-hold breathing mask 4 and is used for detecting whether a breathing action or a breathing airflow exists in the breath-hold breathing mask 4.
Preferably, the breath sensor 5 is adapted to detect the presence or absence of a flow of breath within the breath-hold mask 4. The sensing end of the breath sensor 5 is communicated with the inside of the breath-hold breathing cover 4 or the breath sensor 5 is arranged in the inner cavity of the breath-hold breathing cover 4. . When the breath-hold breathing mask 4 has airflow or air pressure change, the airflow or air pressure change in the sealed space in the breath-hold breathing mask 4 can be changed due to the inhalation of the mouth and the nose.
Referring to fig. 8, the breath-hold breathing mask 4 comprises a breathing mask shell 4-1, wherein an inner cavity 4-2 is formed in the breathing mask shell 4-1, and a sealing rubber sleeve 4-3 is arranged on the edge of an opening of the inner cavity 4-2. The respiration sensor 5 is disposed within the lumen 4-2.
Referring to fig. 9, a breathing tube 4-4 is provided on the breath-hold cover 4, and an electromagnetic switch valve 8 is provided on the breathing tube 4-4, and the electromagnetic switch valve 8 is electrically connected with the controller. When the electromagnetic switch valve 8 is opened after the breath-hold breathing mask 4 covers the mouth and nose, the breathing tube 4-4 communicates the atmosphere with the inside of the breath-hold breathing mask 4, and normal breathing can be performed at this time. When the electromagnetic switch valve 8 is closed after the breath-hold breathing cover 4 covers the mouth and nose, the breathing tube 4-4 can not communicate the atmosphere with the inside of the breath-hold breathing cover 4, and can not breathe normally at this time.
Specifically, in a normal state, the electromagnetic switch 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 at a proper position, the breath-hold breathing mask is positioned at the mouth and nose, and the breath-hold breathing mask can be normally ventilated at the moment, and the patient starts to hold breath after the patient is ready to hold breath, so that the patient enters a breath hold state; therefore, the problem that the breath cannot be breathed after the mouth and the nose are sealed before the breath-hold breathing mask is worn and is not started can be avoided.
Therefore, the electromagnetic switch valve 8 can be designed to be normally open, 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 through circuits.
At present, the user, namely the patient, firstly uses the helmet type training simulation device to carry out adaptation simulation training in nuclear magnetic resonance examination such as chest and abdomen examination.
In the simulation training, a user, namely the head of a patient, is provided with a helmet 1, covered by an eye shield 3 and covered by a breath-hold breathing cover 4 to cover the mouth and nose; then the power supply is started, the electromagnetic switch valve 8 is switched to be in a closed state, the analog sounder 2 generates the same noise (70-90 dB) as that generated during magnetic resonance examination, and the timer starts to count; when the breath sensor 5 detects that the breath action or the breathing airflow is generated by the mouth and the nose in the breath-hold breathing cover 4, the timer stops timing to obtain breath-hold time, and when the breath-hold time is smaller than the standard breath-hold time, the controller controls the alarm to alarm; and the controller controls the alarm not to alarm when the breath-hold time is greater than or equal to a standard breath-hold time (e.g., 20 seconds). Therefore, the method can realize breath-hold adaptation, dark environment adaptation and noise adaptation for the patient before nuclear magnetic resonance examination, and can lead the patient to feel the state of nuclear magnetic resonance examination equipment in advance. When the patient meets the requirements of breath-hold time, the nuclear magnetic resonance examination can be carried out after the patient is in dark environment and noise environment, so as to ensure the examination effect, and solve the problems that the existing examined patient especially claustrophobia or psychological ill patients cannot be effectively matched with the magnetic resonance equipment to finish examination fear, anxiety and the like due to unaware of the magnetic resonance equipment and the like.
The following features are present and analyzed as follows when in use:
first, since the breath-hold mask 4 covers the nose and mouth of the patient, it is used to provide the closed condition required for the breath sensor 5 to detect, and the breath sensor 5 is used to sense the breathing action or flow of the patient, and to determine the breath-hold end time; when the breath-hold time does not reach the standard, the controller can control the alarm to automatically alarm, and the patient needs to adapt and train again; finally, the breath of the patient is trained to reach the standard time requirement of the breath-hold examination;
second, since both eyes of the user are covered by the eye cover, the light source can be isolated; the eye shield part can cover eyes of a patient, so that the patient can adapt to a dark environment in a claustrophobic environment in advance, and the patient can feel the state of nuclear magnetic resonance examination equipment in advance;
third, because the simulated sounder 2 produces the same noise 70-90 db as the magnetic resonance examination, the patient's ear can hear the noise during the magnetic resonance examination, so that the patient can feel the state of the examination equipment in advance;
fourth, adopt the helmet-type to use, make things convenient for the patient to wear the training, be difficult for dropping, be suitable for simultaneously waiting indoor sitting and use.
Referring to fig. 2 and 5, in the present embodiment, the eye mask 3 is provided on the front side of the helmet 1 and is adjustable in vertical displacement.
Referring to fig. 5-6, the eyeshade 3 can be adjusted upwardly to open without covering the eyes. See fig. 2-3, and the eye shield 3 is adjustable downwardly to cover the eye, allowing for switching between open and closed adjustment.
Referring to fig. 2-3 and 5-6, the eye shield 3 can be opened upwards before training to allow more space to be left for interference avoidance, and the breath-hold mask 4 can be more convenient to cover the mouth and nose of a patient, and can be seen by eyes when the breath-hold mask 4 is worn, and can be more observed for convenient operation. After training, the eyeshade 3 can be opened upwards, so that more space can be reserved, interference is avoided, the breath-hold breathing mask 4 is pulled outwards more conveniently to be separated from the mouth and nose of a patient, and eyes are visible when the breath-hold breathing mask 4 is separated, so that the operation is more convenient to observe.
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 is provided with two vertical rod sections 7-1 and a middle cross rod section 7-2; the two vertical rod sections 7-1 are positioned on the left side and the right side of the middle cross rod section 7-2.
Wherein, the left and right ends of the eye shield 3 are respectively connected with the upper parts of the two vertical rod sections 7-1 in a sliding way. 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, so that 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 synchronously slide and bear force left and right so as to ensure the stability and the reliability of movement.
Specifically, two sleeve parts 3-1 are respectively arranged at the left end and the right end of the eye shade 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 eye mask 3 is provided with a escape groove 3-2, and the escape groove 3-2 is located in a V-shape or an inverted trapezoid shape. The arm portion where the breath-hold cover 4 is worn can be better avoided when the breath-hold cover 4 is worn.
Referring to fig. 1-6, in addition, the eye mask further comprises a tightening strap 6, the tightening strap 6 is positioned below the eye mask 3, and the tightening strap 6 is made of elastic materials; the breath-hold breathing mask 4 is fixed in the middle of the tightening strap 6, and two ends of the tightening strap 6 are fixedly connected with the left side and the right side of the helmet 1 respectively. The tightening strap 6 is used for providing elastic force for the breath-hold breathing mask 4, and the breath-hold breathing mask 4 can ensure a closed state when covering the mouth and nose, can not relax, and avoids air leakage to influence the signal detection of the breathing sensor 5. Simultaneously, the tightening strap 6 can be pulled outwards to deform and stretch, and then the breath-hold breathing mask 4 can be loosened and taken down from the mouth and nose, so that the operation is convenient.
Referring to fig. 1-6, further, the tightening strap 6 has two and is disposed up and down. The breath-hold breathing mask 4 can be prevented from swinging up and down, and the two tightening belts 6 can ensure that the breath-hold breathing mask 4 is distributed on the mouth and nose up and down at the same time by means of the up and down two pull forces, so that the reliability and the stability are ensured.
Referring to fig. 1-6, further, two tightening strap stop bars 7-3 are fixedly arranged on the middle cross bar section 7-2, and the two tightening strap stop bars 7-3 are distributed at left and right intervals.
Referring to fig. 5-6, when the tightening strap 6 is snapped outward onto the two tightening strap levers 7-3, the breath-hold mask 4 may be disengaged from the mask to cover the mouth and nose of the user. Meanwhile, when not in use, the tightening strap 6 can be clamped on the two tightening strap baffle rods 7-3, and the breath-hold breathing mask 4 is positioned outside to leave a space, so that the head can safely enter the helmet. After training simulation, when the breath-hold breathing mask 4 is pulled out, the breath-hold breathing mask can be clamped on the two tightening strap baffle rods 7-3, and the head can be conveniently separated from the helmet in a safe way.
Referring to fig. 5-6, further, the tightening strap bar 7-3 is provided with two protrusions 7-31, and the two protrusions 7-31 are vertically spaced. Referring to fig. 5-6, after the training simulation is completed, the breath-hold mask 4 is removed, and the tightening strap 6 is clamped on the tightening strap stop lever 7-3, and the tightening strap 6 is limited between the two protrusions 7-31, so that the tightening strap 6 can be prevented from slipping off the tightening strap stop lever 7-3, and the user can avoid hitting the nose and mouth after rebounding, and the use is safer. Meanwhile, when not in use, the tightening strap 6 can be ensured to be clamped on the tightening strap stop lever 7-3 and limited between the two protrusions 7-31, so that the patient can wear the tightening strap next time conveniently.
Further, 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-hold 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 composed of the analog sounder 2, the respiration sensor 5, the timer, the alarm, the controller and the like is put into an operating state.
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 circuits 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 operation. The power switch can be arranged on the helmet 1 and adopts a push switch.
Referring to fig. 1 to 7, when in operation, the helmet 1 is worn firstly, then the eyeshade 3 and the breath-hold cover 4 are worn, then the pressing 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 count time;
at this time, referring to fig. 7, the controller is connected with the analog sounder 2 through the first relay KM1, the analog sounder 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 sounder 2 is communicated to sound working;
at this time, referring to fig. 7, the controller is connected with the alarm through the second relay KM2, the alarm is connected with the 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, the electromagnetic switch valve 8 is closed, so that the atmosphere and the inside of the breath-hold breathing mask 4 cannot be communicated, and the inner cavity of the breath-hold breathing mask 4 is in a closed state;
then, when the breath sensor 5 detects that the breath action or the breathing airflow is generated by the mouth and the nose in the breath-hold breathing cover 4, the timer stops counting to obtain breath-hold time, when the breath-hold time is smaller than the standard breath-hold time, the controller controls the second relay KM2 to be closed with the contact, the alarm circuit is communicated to alarm, and meanwhile, the controller controls the controllable display to display unqualified; and 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 alarm, and the controller controls the controllable display to display disqualification.
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; and finally, manually closing the power switch.
The foregoing describes in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the invention by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.
Claims (9)
1. A helmet-type training simulator for use before magnetic resonance examination, characterized in that: comprises a helmet (1), an analog sounder (2), an eye shade (3), a breath-hold breathing cover (4), a breathing sensor (5), a timer and an alarm;
the simulated sounder (2) is arranged on the helmet (1) and is used for generating the same noise as that generated during magnetic resonance examination;
the eyeshade (3) is arranged on the helmet (1) and is used for covering eyes of a user and isolating a light source;
the breath-hold breathing cover (4) is arranged on the helmet (1) and is used for covering the mouth and nose of a user and isolating air from entering;
the breath sensor (5) is arranged on the breath-hold breathing cover (4) and is used for detecting whether a breathing action or a breathing airflow exists in the breath-hold breathing cover (4);
the simulated sounder (2), the respiration sensor (5), the timer and the alarm are connected with the controller through circuits;
when the breath sensor (5) detects that the breath action or the breathing airflow is generated in the mouth and nose of the breath-hold breathing cover (4), the timer stops timing to obtain breath-hold time, and when the breath-hold time is smaller than the standard breath-hold time, the controller controls the alarm to alarm; when the breath-hold time is greater than or equal to the standard breath-hold time, the controller controls the alarm to not alarm;
the two analog sounders (2) are arranged on the left side and the right side of the helmet (1) respectively, and the two analog sounders (2) are arranged on the left side and the right side of the helmet.
2. A pre-mr helmet training simulator as defined in claim 1, wherein: the eyeshade (3) is arranged at the front side of the helmet (1) and can be adjusted in an up-and-down displacement way.
3. A pre-mr helmet training simulator as defined in claim 2, wherein: the front side of the helmet (1) is fixedly provided with a U-shaped frame (7), and the U-shaped frame (7) is provided with two vertical rod sections (7-1) and a middle cross 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.
4. A pre-mr helmet training simulator as defined in claim 3, wherein: the eye mask also comprises a tightening belt (6), wherein the tightening belt (6) is positioned below the eye mask (3), and the tightening belt (6) is made of elastic materials;
the breath-hold breathing mask (4) is fixed in the middle of the tightening belt (6), and two ends of the tightening belt (6) are fixedly connected with the left side and the right side of the helmet (1) respectively.
5. A pre-mr helmet training simulator as defined in claim 4, wherein: the tightening belts (6) are two and distributed up and down.
6. A helmet-type training simulator for use before magnetic resonance examination as claimed in claim 4 or 5, wherein: two tightening belt blocking rods (7-3) are fixedly arranged on the middle cross rod section (7-2), and the two tightening belt blocking rods (7-3) are distributed at left and right intervals;
when the tightening strap (6) is clamped on the two tightening strap stop rods (7-3), the breath-hold breathing mask (4) can be separated from the mask for covering the mouth and nose of a user.
7. A pre-mr helmet training simulator as defined in claim 6, wherein: the tightening belt baffle rod (7-3) is provided with two bulges (7-31), and the two bulges (7-31) are distributed at intervals up and down.
8. A pre-mr helmet training simulator as defined in claim 1, wherein: the alarm adopts an audible and visual alarm.
9. A pre-mr helmet training simulator as defined in claim 1, wherein: the breath-hold breathing cover (4) is provided with a breathing tube (4-4), the breathing tube (4-4) is provided with an electromagnetic switch valve (8), and the electromagnetic switch valve (8) is connected with the controller through a circuit.
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| CN201910329358.1A CN109887370B (en) | 2019-04-23 | 2019-04-23 | Helmet type training simulator used before magnetic resonance examination |
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| CN201910329358.1A CN109887370B (en) | 2019-04-23 | 2019-04-23 | Helmet type training simulator used before magnetic resonance examination |
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| CN112516541B (en) * | 2020-11-25 | 2021-10-01 | 常州利明屏蔽有限公司 | Auxiliary training system used before MR and CT examination |
| CN114699064A (en) * | 2022-04-01 | 2022-07-05 | 四川省肿瘤医院 | Breath holding assisting method for cardiac magnetic resonance examination |
| CN114795181B (en) * | 2022-06-23 | 2023-02-10 | 深圳市铱硙医疗科技有限公司 | Method and device for assisting children in adapting to nuclear magnetic resonance examination |
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