CN112914550A - Nuclear magnetic resonance fixing and pacifying device for infants - Google Patents
Nuclear magnetic resonance fixing and pacifying device for infants Download PDFInfo
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- CN112914550A CN112914550A CN202110321913.3A CN202110321913A CN112914550A CN 112914550 A CN112914550 A CN 112914550A CN 202110321913 A CN202110321913 A CN 202110321913A CN 112914550 A CN112914550 A CN 112914550A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2503/00—Evaluating a particular growth phase or type of persons or animals
- A61B2503/04—Babies, e.g. for SIDS detection
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2503/00—Evaluating a particular growth phase or type of persons or animals
- A61B2503/06—Children, e.g. for attention deficit diagnosis
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Abstract
The invention provides a fixing and pacifying device for nuclear magnetic resonance of infants, which comprises a bed body, a head circumference adjusting structure and a trunk fixing mechanism, wherein the bed body comprises a bearing structure and an enclosing structure; the enclosing structure is arranged around the bearing structure and comprises a head enclosing section and a trunk enclosing section which are connected; the head circumference adjusting mechanism is arranged in an inner cavity of the head circumference protecting section and comprises an elastic rubber bag, and a tension spring is arranged on the inner side of the elastic rubber bag; the trunk fixing mechanism is arranged on the outer side of the trunk enclosing section and comprises at least one pair of fixing belts, the fixing belts are connected through a tightness adjusting device, and the tightness adjusting device is used for adjusting the tightness of the fixing belts for fixing the baby. The invention can fix the baby in the bed body, prevent the baby from moving randomly and influencing the examination result, does not need to sleep the baby and then examine the baby, improves the examination efficiency and can adapt to babies with different physiques.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a nuclear magnetic resonance fixing and pacifying device for infants.
Background
Magnetic Resonance Imaging (MRI) systems are commonly used in the medical and health fields, i.e., an imaging technique in which hydrogen nuclei (protons) in human tissues are excited by radio frequency pulses in a magnetic field to generate magnetic resonance signals, and the magnetic resonance signals are processed by an electronic computer to reconstruct an image of a certain surface of a human body. The nuclear magnetic resonance imaging diagnosis for the common symptoms of the infants has gained more and more attention in the medical field, and the nuclear magnetic resonance imaging of the infants generally uses the conventional nuclear magnetic resonance system, CT, ultrasound and other means, and has obvious advantages based on the safety and the imaging value.
When the infant is examined, the infant needs to be sleeped and then is put into the examining table for examination, however, MRI has the advantages of long examination time, high noise and strong motion artifact sensitivity, and the infant often wakes up immediately after being put into the examining table, so that time waste is caused for examination.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a nuclear magnetic resonance fixing and pacifying device for infants, which comprises:
the bed body comprises a bearing structure and an enclosure structure; the bearing structure is horizontally arranged and is used for bearing an infant; the enclosure structure is vertically arranged and enclosed on the periphery of the bearing structure, and comprises a head enclosure section and a trunk enclosure section which are connected, wherein the head enclosure section corresponds to the head position of a baby lying on the bearing structure, and the trunk enclosure section corresponds to the trunk position of the baby lying on the bearing structure;
the head circumference adjusting mechanism is arranged in an inner cavity of the head surrounding section and comprises an elastic rubber bag, and a plurality of tension springs extending along the thickness direction of the surrounding structure are arranged on the inner side of the elastic rubber bag;
the trunk fixing mechanism is arranged on the outer side of the trunk enclosing section and comprises at least one pair of fixing belts, the fixing belts are connected through a tightness adjusting device, and the tightness adjusting device is used for adjusting the tightness of the fixing belts for fixing the baby.
The baby nursing bed can fix a baby in the bed body, prevent the baby from moving randomly and influencing the examination result, and does not need to sleep the baby and then carry out examination, thereby improving the examination efficiency; in addition, the enclosure structure is arranged, and an enclosure function is achieved for the baby on the bearing structure; the rubber elastic ring and the tension spring arranged in the head enclosing section can enable the head enclosing section to deform in the thickness direction, so that the head enclosing section can adapt to infants with different head circumferences; the fixing belt and the tightness adjusting device are arranged on the trunk enclosing section, so that the baby carriage can adapt to babies with different physiques.
Preferably, the tightness adjusting device comprises a cylinder and a lock rod, one end of the cylinder is fixedly connected with one of the fixing belts, the other end of the cylinder is provided with an opening, and the lock rod is fixedly connected with the end part of the other fixing belt;
the novel anti-theft lock is characterized in that a sliding block is arranged in the barrel, two ends of the sliding block are connected with the inner wall of the barrel in a sliding mode, a lock hole is formed in one side, close to the opening end of the barrel, of the sliding block, and the lock rod can be inserted into the lock hole.
Like this, the locking lever is planted in the lockhole to link together with the slider, a fixed band can be pulled promptly in the removal of slider, and at this moment, another fixed band can not pulled, can play the effect of adjusting the elasticity.
Preferably, the inner wall of the cylinder body is provided with a blind hole, and the lock rod is uniformly provided with a plurality of clamping holes along the length direction of the lock rod; and an inserting and matching component is arranged in the blind hole in a sliding manner and can be inserted into one of the clamping holes.
Therefore, after the sliding block drives the lock rod to move together to realize the function of tightness adjustment, the lock rod inserted in the lock hole is locked and positioned through the insertion matching component, and the tightness degree is fixed.
Preferably, one end of the insertion fitting component is connected with a return spring; one end of the return spring is arranged in the blind hole; an inserting groove is formed at the position of the outer side wall of the barrel body inwards concave, a connecting groove is formed at the inner side wall of the barrel body in a concave mode, the connecting groove is communicated with the inserting groove, and the connecting groove is communicated with the opening end of the blind hole;
push-pull structures are arranged in the inserting groove and the connecting groove, and the push-pull structures are L-shaped; the plug-in fitting component is also provided with a through hole, and the push-pull structure can be inserted into the through hole.
Therefore, when the inserting and connecting matching component is inserted into the clamping hole, the return spring is in a natural state, and the inserting and connecting matching component locks the lock rod to realize the fixation of the tightness degree; because the push-pull structure of this application is inserted with grafting cooperation component and is connected, can make progress the push-pull structure, compress reset spring to make grafting cooperation component break away from the card hole, realize the unblock of grafting cooperation component to the locking lever, remove the position of locking lever again, when needing to lock the locking lever once more, only need loosen the push-pull structure can, easy operation easily realizes.
Preferably, a sliding groove is formed in an outer end face of the push-pull structure, an opening area of the sliding groove is smaller than a sectional area of an inner cavity of the sliding groove, a sliding plate is slidably arranged in the sliding groove, a sectional area of an outer end portion of the sliding plate is larger than an opening area of the sliding groove, and a sectional area of an inner end portion of the sliding plate is smaller than a sectional area of the inner cavity of the sliding groove and larger than an opening area of the sliding groove.
Like this, through upwards taking the slide out outside the frid, exert horizontal pulling force to the slide again, can realize the unblock with whole push-and-pull structure horizontal displacement, make it can be to the locking lever unblock under reset spring's effect.
Preferably, a partition plate is further arranged inside the cylinder, the length direction of the partition plate is consistent with the axial direction of the cylinder, the partition plate divides the inner cavity of the cylinder into an upper cavity and a lower cavity, and the sliding block is connected with the partition plate in a sliding manner;
a first telescopic cylinder is arranged in the upper chamber on one side of the sliding block, which is far away from the opening of the cylinder body, and the first telescopic cylinder is fixedly connected with the sliding block; a second telescopic cylinder is arranged in the lower cavity at one side of the sliding block close to the opening of the cylinder body, and the second telescopic cylinder is fixedly connected with the sliding block;
the tightness adjusting device also comprises a communicating pipe arranged outside the cylinder body, one end of the communicating pipe is communicated with the inner cavity of the first telescopic cylinder, and the other end of the communicating pipe is communicated with the inner cavity of the second telescopic cylinder; wherein, the middle part of communicating pipe is provided with a utricule, and the both ends of utricule and communicating pipe are linked together.
Therefore, the gas in the first telescopic cylinder and the second telescopic cylinder can be in a generally stable state, and the first telescopic cylinder and the second telescopic cylinder realize dynamic balance; when first telescopic cylinder extension and promotion slider promptly, the second telescopic cylinder will be in by compression state, and the fluid in the second telescopic cylinder will flow into in the first telescopic cylinder, need not always to inflate first telescopic cylinder and second telescopic cylinder, simultaneously, because the existence of utricule, on the barrel can not directly touch the baby's trunk, the possibility that the baby was hindered to the reduction oppression.
Preferably, an inflation tube is arranged on the bag body, a first control valve is arranged at one end, close to the first telescopic cylinder, of the communication tube, and a second control valve is arranged at one end, close to the second telescopic cylinder, of the communication tube.
Like this, when aerifing to the utricule, because the gas filling volume is unstable, can the artificial decision open first control valve earlier or open the second control valve earlier, make first flexible section of thick bamboo or second flexible section of thick bamboo fill with gas earlier, promptly, when aerifing, directly adjust the function of elasticity.
Preferably, a protection structure is arranged on one side, close to the head of the baby, of the elastic rubber bag, and the protection structure is arranged in an inner cavity of the enclosure structure; the protective structure can stretch out and draw back along the thickness direction of the enclosure structure, and the compression ratio of the protective structure is higher than that of the elastic rubber bag; the protective structure covers the entire side of the elastic rubber band facing the side of the baby's head.
The applicant finds that as the elastic rubber bag expands, one side of the elastic rubber bag close to the head of the baby moves to the baby to form the protrusion, and at the moment, one side of the elastic rubber bag close to the baby is tightly attached to the enclosure structure, so that one side of the enclosure structure close to the head of the baby also moves to the head of the baby to form the protrusion instead of uniformly touching the head of the baby, and the baby can feel uncomfortable.
In order to solve the problem, a protection structure is arranged in the application, and the protection structure has certain flexibility, so that the protection structure can be squeezed into the valley part of the wrinkles generated by the elastic rubber bag, and part of the skin protection structure is elastically deformed, so that the friction force between the elastic rubber bag and the enclosure structure is relieved and offset, one side of the enclosure structure facing a human body cannot generate a bulge, and the discomfort of a baby is reduced on the premise of ensuring the tightness adaptation of the enclosure structure to the head of the baby.
Preferably, the bearing structure is made of cloth through sewing, a wood board is arranged in an inner cavity of the bearing structure, a flexible cushion layer is arranged on one surface, close to the trunk of the baby, of the wood board, and an inclined surface is arranged on one surface, close to the trunk of the baby, of the flexible cushion layer.
Thus, the wooden board can better support the trunk of the baby, and the existence of the flexible cushion layer can also make the baby more comfortable.
Drawings
In order to more clearly illustrate the embodiments of the present invention, the drawings, which are required to be used in the embodiments, will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.
Fig. 1 is a schematic structural view of a nuclear magnetic resonance fixing and pacifying device for infants, which is provided by the invention;
FIG. 2 is a schematic structural view of a head circumference adjustment mechanism according to the present invention;
FIG. 3 is a schematic view of a slack adjuster according to the present invention;
fig. 4 is a schematic view of the structure of the plug-in mating member and the push-pull structure of fig. 3.
Reference numerals:
1-a bed body, 11-a bearing structure, 12-a building enclosure, 121-a head building enclosure and 122-a trunk building enclosure;
2-head circumference adjusting mechanism, 21-elastic rubber belt, 22-tension spring and 23-protection structure;
3-trunk fixing mechanism, 30-fixing belt, 31-tightness adjusting device, 310-communicating pipe, 311-barrel, 3111-clapboard, 312-locking rod, 313-sliding block, 314-locking hole, 315-plug matching component, 316-return spring, 317-push-pull structure, 318-plug groove, 319-sliding plate, 32-first telescopic cylinder, 33-second telescopic cylinder and 34-capsule.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
Example (b): as shown in fig. 1 and 2, a magnetic resonance fixing and pacifying device for infants comprises a bed body 1, a head circumference adjusting mechanism 2 and a trunk fixing mechanism 3.
As shown in fig. 1, the bed 1 includes a bearing structure 11 and a building envelope 12. The carrying structure 11 is arranged horizontally and is used for carrying the baby. The envelope 12 is vertically arranged and surrounds the periphery of the bearing structure 11, the envelope 12 comprises a head envelope section 121 and a trunk envelope section 122 which are connected, the head envelope section 121 corresponds to the head position of the baby lying on the bearing structure 11, and the trunk envelope section 122 corresponds to the trunk position of the baby lying on the bearing structure 11.
As shown in fig. 1 and 2, the head circumference adjusting mechanism 2 is installed in an inner cavity of the head envelope section 121, the head circumference adjusting mechanism 2 includes an elastic rubber bag 21, and a plurality of tension springs 22 extending in a thickness direction of the envelope structure 12 are disposed inside the elastic rubber bag 21.
As shown in fig. 1 and 3, the trunk fixing mechanism 3 is disposed outside the trunk enclosing section 122, the trunk fixing mechanism 3 includes at least a pair of fixing belts 30, the pair of fixing belts 30 are connected by a tightness adjusting device 31, and the tightness adjusting device 31 is used for adjusting the tightness of the fixing belts 30 for fixing the baby. Wherein, a pair of fixing belts 30 are respectively positioned at two opposite sides of the bed body 1.
The baby nursing bed can fix a baby in the bed body, prevent the baby from moving randomly and influencing the examination result, and does not need to sleep the baby and then carry out examination, thereby improving the examination efficiency; in addition, the enclosure structure is arranged, and an enclosure function is achieved for the baby on the bearing structure; the rubber elastic ring and the tension spring arranged in the head enclosing section can enable the head enclosing section to deform in the thickness direction, so that the head enclosing section can adapt to infants with different head circumferences; the fixing belt and the tightness adjusting device are arranged on the trunk enclosing section, so that the baby carriage can adapt to babies with different physiques.
During implementation, one side that is close to the baby in the envelope 12 still is equipped with the memory sponge, and the memory sponge can let envelope when the parcel baby, still can not extrude the baby with great force, improves baby's comfort level, and simultaneously, memory sponge itself has certain syllable-dividing function, avoids the baby to receive the influence because external noise, and then influences the inspection.
In practice, the head surrounding section 121 and the body surrounding section 122 are detachably connected, for example, the detachable connection can be realized by a buckle arranged on the head surrounding section 121 and the body surrounding section 122, but the invention is not limited thereto, and can be adjusted accordingly according to actual conditions.
When the head enclosing section 121 and the body enclosing section 122 are connected and fixed together, the device can be used by a baby, so that the baby can lie in the bed body in a whole way; because the infant is big in size and cannot lie on the bed body of the infant, when the head enclosing section 121 and the body enclosing section 122 can be detached, the head enclosing section 121 is used as the head enclosure of the infant alone.
As shown in fig. 3, the tightness adjusting device 31 includes a cylinder 311 and a lock rod 312, one end of the cylinder 311 is fixedly connected to one of the fixing bands 30, the other end of the cylinder 311 is open, and the lock rod 312 is fixedly connected to the end of the other fixing band 30. A sliding block 313 is arranged in the cylinder 311, two ends of the sliding block 313 are connected with the inner wall of the cylinder 311 in a sliding manner, a locking hole 314 is arranged on one side of the sliding block 313 close to the opening end of the cylinder 311, and the locking rod 312 can be inserted into the locking hole 314.
Like this, the locking lever is planted in the lockhole to link together with the slider, a fixed band can be pulled promptly in the removal of slider, and at this moment, another fixed band can not pulled, can play the effect of adjusting the elasticity.
As shown in fig. 3 and 4, a blind hole is formed in the inner wall of the cylinder 311, and a plurality of locking holes are uniformly formed in the locking rod 312 along the length direction of the locking rod; a plug-in fitting member 315 is slidably disposed in the blind hole, and the plug-in fitting member 315 can be inserted into one of the locking holes.
Therefore, after the sliding block drives the lock rod to move together to realize the function of tightness adjustment, the lock rod inserted in the lock hole is locked and positioned through the insertion matching component, and the tightness degree is fixed.
As shown in fig. 3 and 4, one end of the plug-in fitting member 315 is connected to a return spring 316; one end of the return spring 316 is mounted in the blind hole. The outer side wall of the barrel 311 is inwards concave to form a plug-in connection groove 318, the inner side wall of the barrel 311 is concave to form a connection groove, the connection groove is communicated with the plug-in connection groove 318, and the connection groove is communicated with the opening end of the blind hole. A push-pull structure 317 is arranged in the insertion groove 318 and the connecting groove, the push-pull structure 317 is L-shaped, one section of the push-pull structure 317 is arranged in the insertion groove 318, and the other end of the push-pull structure 317 is arranged in the connecting groove in a sliding manner; the insertion fitting member 315 further defines a through hole, and the push-pull structure 317 can be inserted into the through hole.
Therefore, when the inserting and connecting matching component is inserted into the clamping hole, the return spring is in a natural state, and the inserting and connecting matching component locks the lock rod to realize the fixation of the tightness degree; because the push-pull structure of this application is inserted with grafting cooperation component and is connected, can make progress the push-pull structure, compress reset spring to make grafting cooperation component break away from the card hole, realize the unblock of grafting cooperation component to the locking lever, remove the position of locking lever again, when needing to lock the locking lever once more, only need loosen the push-pull structure can, easy operation easily realizes.
As shown in fig. 4, a sliding slot is formed on an outer end surface of the push-pull structure 317, an opening area of the sliding slot is smaller than a sectional area of an inner cavity of the sliding slot, a sliding plate 319 is slidably disposed in the sliding slot, a sectional area of an outer end portion of the sliding plate 319 is larger than an opening area of the sliding slot, and a sectional area of an inner end portion of the sliding plate 319 is smaller than a sectional area of the inner cavity of the sliding slot and larger than an opening area of the sliding slot.
Like this, through upwards taking the slide out outside the frid, exert horizontal pulling force to the slide again, can realize the unblock with whole push-and-pull structure horizontal displacement, make it can be to the locking lever unblock under reset spring's effect.
As shown in fig. 3, a partition 3111 is further disposed inside the cylinder 311, a length direction of the partition 3111 is identical to an axial direction of the cylinder 311, the partition 3111 divides an inner cavity of the cylinder 311 into an upper chamber and a lower chamber, and the slider 313 is slidably connected to the partition 3111. A first telescopic cylinder 32 is arranged in the upper chamber on one side, far away from the opening of the cylinder body 311, of the sliding block 313, and the first telescopic cylinder 32 is fixedly connected with the sliding block 313. The lower chamber of the slide block 313 close to the opening side of the cylinder 311 is internally provided with a second telescopic cylinder 33, and the second telescopic cylinder 33 is fixedly connected with the slide block 313. In practice, the first telescopic cylinder 32 and the second telescopic cylinder 33 may be both telescopic cylinders.
As shown in fig. 3, the slack adjuster 31 further includes a communication pipe 310 disposed outside the cylinder body 311, one end of the communication pipe 310 is communicated with the inner cavity of the first telescopic cylinder 32, and the other end of the communication pipe 310 is communicated with the inner cavity of the second telescopic cylinder 33; wherein, the middle part of the communication pipe 310 is provided with a capsule 34, and both ends of the capsule 34 are communicated with the communication pipe 310.
Therefore, the gas in the first telescopic cylinder and the second telescopic cylinder can be in a generally stable state, and the first telescopic cylinder and the second telescopic cylinder realize dynamic balance; when first telescopic cylinder extension and promotion slider promptly, the second telescopic cylinder will be in by compression state, and the fluid in the second telescopic cylinder will flow into in the first telescopic cylinder, need not always to inflate first telescopic cylinder and second telescopic cylinder, simultaneously, because the existence of utricule, on the barrel can not directly touch the baby's trunk, the possibility that the baby was hindered to the reduction oppression.
As shown in fig. 3, an inflation tube is disposed on the bag 34, a first control valve is disposed at one end of the communication tube 310 close to the first telescopic cylinder 32, and a second control valve is disposed at one end of the communication tube 310 close to the second telescopic cylinder 33.
Like this, when aerifing to the utricule, because the gas filling volume is unstable, can the artificial decision open first control valve earlier or open the second control valve earlier, make first flexible section of thick bamboo or second flexible section of thick bamboo fill with gas earlier, promptly, when aerifing, directly adjust the function of elasticity.
Preferably, as shown in fig. 1 and 2, a protection structure 23 is arranged on one side of the elastic rubber bag 21 close to the head of the infant, and the protection structure 23 is arranged in the inner cavity of the enclosure 12; the protective structure 23 can stretch along the thickness direction of the building envelope 12, and the compression ratio of the protective structure 23 is higher than that of the elastic rubber bag 21; the protective structure 23 covers the entire side of the elastic rubber band 21 facing the baby's head.
The applicant finds that as the elastic rubber bag expands, one side of the elastic rubber bag close to the head of the baby moves to the baby to form the protrusion, and at the moment, one side of the elastic rubber bag close to the baby is tightly attached to the enclosure structure, so that one side of the enclosure structure close to the head of the baby also moves to the head of the baby to form the protrusion instead of uniformly touching the head of the baby, and the baby can feel uncomfortable.
In order to solve the problem, a protection structure is arranged in the application, and the protection structure has certain flexibility, so that the protection structure can be squeezed into the valley part of the wrinkles generated by the elastic rubber bag, and part of the skin protection structure is elastically deformed, so that the friction force between the elastic rubber bag and the enclosure structure is relieved and offset, one side of the enclosure structure facing a human body cannot generate a bulge, and the discomfort of a baby is reduced on the premise of ensuring the tightness adaptation of the enclosure structure to the head of the baby.
As shown in fig. 1, the carrying structure 11 is made of fabric by sewing, a wood board (not shown) is disposed in an inner cavity of the carrying structure, a flexible cushion layer (not shown) is disposed on a surface of the wood board close to the torso of the baby, and the flexible cushion layer is made of a flexible material. Thus, the wooden board can better support the trunk of the baby, and the existence of the flexible cushion layer can also make the baby more comfortable. Wherein, the surface of the flexible cushion layer close to the trunk of the baby is an inclined surface. Therefore, when the baby lies down, the baby can be in a slightly lateral lying state, the milk spilling of the baby is prevented, and the safety of the device is improved.
In practice, the tension spring 22 and the return spring 316 are all made of non-metal materials, such as rubber, so as to reduce the influence on the MRI measurement result and reduce the error.
When the fixing and pacifying device is implemented, the installation groove is formed in the examining bed, the clamping structure is arranged on the back surface of the bed body 1 of the fixing and pacifying device for the infants, the fixing and pacifying device can be installed in the installation groove of the examining bed through the clamping structure, and the fixing and pacifying device is prevented from accidentally shaking; meanwhile, the position of the fixing pacifying device on the examination bed is fixed, and the accuracy of MRI measurement is improved.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (9)
1. A fixed pacifying device of nuclear magnetic resonance for infants, characterized by comprising:
the bed body comprises a bearing structure and an enclosure structure; the bearing structure is horizontally arranged and is used for bearing an infant; the enclosure structure is vertically arranged and enclosed on the periphery of the bearing structure, and comprises a head enclosure section and a trunk enclosure section which are connected, wherein the head enclosure section corresponds to the head position of a baby lying on the bearing structure, and the trunk enclosure section corresponds to the trunk position of the baby lying on the bearing structure;
the head circumference adjusting mechanism is arranged in an inner cavity of the head surrounding section and comprises an elastic rubber bag, and a plurality of tension springs extending along the thickness direction of the surrounding structure are arranged on the inner side of the elastic rubber bag;
the trunk fixing mechanism is arranged on the outer side of the trunk enclosing section and comprises at least one pair of fixing belts, the fixing belts are connected through a tightness adjusting device, and the tightness adjusting device is used for adjusting the tightness of the fixing belts for fixing the baby.
2. The device for fixing and pacifying the infant and pre-school children according to claim 1, wherein the tightness adjusting device comprises a cylinder body and a lock rod, one end of the cylinder body is fixedly connected with one of the fixing belts, the other end of the cylinder body is provided with an opening, and the lock rod is fixedly connected with the end part of the other fixing belt;
the novel anti-theft lock is characterized in that a sliding block is arranged in the barrel, two ends of the sliding block are connected with the inner wall of the barrel in a sliding mode, a lock hole is formed in one side, close to the opening end of the barrel, of the sliding block, and the lock rod can be inserted into the lock hole.
3. The device for fixing and pacifying nuclear magnetic resonance for infants according to claim 2, wherein the inner wall of the cylinder body is provided with a blind hole, and the lock rod is uniformly provided with a plurality of clamping holes along the length direction of the lock rod; and an inserting and matching component is arranged in the blind hole in a sliding manner and can be inserted into one of the clamping holes.
4. The device for fixing and pacifying nuclear magnetic resonance for infants according to claim 3, wherein a return spring is connected to one end of the insertion fitting member; one end of the return spring is arranged in the blind hole; an inserting groove is formed at the position of the outer side wall of the barrel body inwards concave, a connecting groove is formed at the inner side wall of the barrel body in a concave mode, the connecting groove is communicated with the inserting groove, and the connecting groove is communicated with the opening end of the blind hole;
push-pull structures are arranged in the inserting groove and the connecting groove, and the push-pull structures are L-shaped; the plug-in fitting component is also provided with a through hole, and the push-pull structure can be inserted into the through hole.
5. The device for fixing and pacifying nuclear magnetic resonance for infants according to claim 4, wherein a sliding groove is formed on an outer end surface of the push-pull structure, an opening area of the sliding groove is smaller than a sectional area of an inner cavity of the sliding groove, a sliding plate is slidably arranged in the sliding groove, a sectional area of an outer end portion of the sliding plate is larger than an opening area of the sliding groove, and a sectional area of an inner end portion of the sliding plate is smaller than a sectional area of the inner cavity of the sliding groove and larger than an opening area of the sliding groove.
6. The device for fixing and pacifying nuclear magnetic resonance for infants according to claim 2, wherein a partition plate is further arranged inside the cylinder body, the length direction of the partition plate is consistent with the axial direction of the cylinder body, the partition plate divides the inner cavity of the cylinder body into an upper cavity and a lower cavity, and the sliding block is connected with the partition plate in a sliding manner;
a first telescopic cylinder is arranged in the upper chamber on one side of the sliding block, which is far away from the opening of the cylinder body, and the first telescopic cylinder is fixedly connected with the sliding block; a second telescopic cylinder is arranged in the lower cavity at one side of the sliding block close to the opening of the cylinder body, and the second telescopic cylinder is fixedly connected with the sliding block;
the tightness adjusting device also comprises a communicating pipe arranged outside the cylinder body, one end of the communicating pipe is communicated with the inner cavity of the first telescopic cylinder, and the other end of the communicating pipe is communicated with the inner cavity of the second telescopic cylinder; wherein, the middle part of communicating pipe is provided with a utricule, and the both ends of utricule and communicating pipe are linked together.
7. The device for fixing and pacifying nuclear magnetic resonance for infants according to claim 6, wherein an inflation tube is arranged on the bag body, a first control valve is arranged at one end, close to the first telescopic cylinder, of the communication tube, and a second control valve is arranged at one end, close to the second telescopic cylinder, of the communication tube.
8. The device for fixing and pacifying the infant and pre-school children according to claim 1, wherein a protection structure is arranged on one side of the elastic rubber bag close to the head of the infant, and the protection structure is arranged in an inner cavity of the enclosure; the protective structure can stretch out and draw back along the thickness direction of the enclosure structure, and the compression ratio of the protective structure is higher than that of the elastic rubber bag; the protective structure covers the entire side of the elastic rubber band facing the side of the baby's head.
9. The device for fixing and pacifying an infant and pre-school children according to claim 1, wherein the bearing structure is made of cloth through sewing, a wood board is arranged in an inner cavity of the bearing structure, a flexible cushion layer is arranged on one surface, close to the trunk of the infant, of the wood board, and one surface, close to the trunk of the infant, of the flexible cushion layer is an inclined surface.
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