CN116965799B - Neonatal magnetic resonance examination system - Google Patents
Neonatal magnetic resonance examination system Download PDFInfo
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- CN116965799B CN116965799B CN202311225993.8A CN202311225993A CN116965799B CN 116965799 B CN116965799 B CN 116965799B CN 202311225993 A CN202311225993 A CN 202311225993A CN 116965799 B CN116965799 B CN 116965799B
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- 238000000034 method Methods 0.000 claims abstract description 12
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- 229910052760 oxygen Inorganic materials 0.000 claims description 13
- 239000001301 oxygen Substances 0.000 claims description 13
- 239000000523 sample Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
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- 238000001514 detection method Methods 0.000 abstract description 10
- 238000007689 inspection Methods 0.000 abstract description 7
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- 238000002595 magnetic resonance imaging Methods 0.000 description 6
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
- A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/70—Means for positioning the patient in relation to the detecting, measuring or recording means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G11/00—Baby-incubators; Couveuses
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
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- Physics & Mathematics (AREA)
- Surgery (AREA)
- Pathology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Biophysics (AREA)
- Engineering & Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- High Energy & Nuclear Physics (AREA)
- Radiology & Medical Imaging (AREA)
- Gynecology & Obstetrics (AREA)
- Pediatric Medicine (AREA)
- Pregnancy & Childbirth (AREA)
- Cardiology (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Abstract
The invention provides a neonate magnetic resonance examination system, which relates to the technical field of medical detection equipment and comprises a scanning sickbed, wherein the scanning sickbed comprises a transfer vehicle and an infant incubator, and the infant incubator is arranged on the transfer vehicle and moves along with the transfer vehicle; the transfer trolley is provided with an external guide rail for guiding the baby incubator to move, the baby incubator can translate relative to the transfer trolley along the external guide rail, and when the baby incubator reaches a detection position, the baby incubator moves along the external guide rail to push out the transfer trolley; the infant incubator comprises a scanning container, a placing bin and a fitting bin, wherein the placing bin is provided with a base and a bin cover, the scanning container is arranged on the base, and a newborn can be placed in the scanning container for inspection under the state that the bin cover is opened; the accessory bin is provided with an auxiliary instrument, the scanning container can be used for the newborn to lie down and realize limiting, random movement of the newborn is avoided, the scanning container can extend into the scanning device along with the translation of the infant incubator during examination, and the magnetic resonance examination process of the newborn can be completed.
Description
Technical Field
The invention relates to the technical field of medical detection equipment, in particular to a neonatal magnetic resonance examination system.
Background
Magnetic resonance imaging technology has become one of the most important technologies for medical diagnosis today, and 1.5T and 3.0T whole body magnetic resonance has become mature in application in older children and adults, but magnetic resonance devices dedicated to neonatal examinations still have a number of drawbacks.
The temperature preservation function of the newborn is poor, and the body temperature can be reduced in the process of examination and scanning; the strong noise generated by the gradient coil can make the neonate unacceptable and even damage the auditory system, and crying and peristalsis of the body caused by all external frightening can influence the imaging effect, so that the neonate has to be subjected to whole-body binding or anesthesia for imaging, which is a very unfriendly operation for the neonate; furthermore, the white matter in the brain tissue of the neonate is not myelinated yet, the contrast is not obvious after white matter and gray matter imaging, and the limit is fuzzy; the gradient strength of whole-body magnetic resonance is about 45mT/m, and it is difficult to improve imaging quality. The whole-body imaging SAR value is very high, the power of the radio frequency coil is very high, and the heat generated by radio frequency microwaves is also a damage to newborns.
SAR value (Specific Absorption Ratio, specific absorption rate) refers to the electromagnetic radiation energy absorbed by a substance per unit mass in a unit time, namely the electromagnetic radiation energy (watt) absorbed by each kilogram of human tissue is reflected to the human body, the absorption of the energy can lead to the rise of the body temperature of the human body, and the higher the water content is, the stronger the radiation absorbing capacity is, and the water content of the body of a neonate is higher than that of an adult.
Gradient field: the field intensity generated by the gradient coil is in linear relation with the distance in the x, y and z directions, the gradient magnetic field is used for positioning the tissue position in the scanning process, and the higher the gradient intensity is, the higher the resolution of human tissue is, and the clearer the image is. Another important indicator of gradient coils is the switching rate, which is the increase in gradient strength per unit time, the higher the switching rate, the faster the scan speed.
It is a technical problem that needs to be solved at present for a person skilled in the art how to solve the problem of magnetic resonance imaging of newborns.
Disclosure of Invention
The invention provides a neonate magnetic resonance examination system which can be matched with the body size of a neonate and is beneficial to better completing magnetic resonance detection examination, and the specific scheme is as follows:
the utility model provides a neonate's magnetic resonance inspection system, includes the scanning sick bed, the scanning sick bed includes transfer car (buggy) and incubator, the incubator place in the transfer car, set up on the transfer car and be used for guiding the external guide rail that the incubator removed, the incubator can follow external guide rail translation;
the incubator comprises a scanning container, a placing bin and an accessory bin, wherein an auxiliary instrument is arranged in the accessory bin; the scanning container is used for enabling a newborn to lie down and limit; the scanning container can horizontally move along with the infant incubator and extend into the scanning device;
the placing bin is provided with a base and a bin cover, the scanning container is arranged on the base, and a newborn can be placed in the scanning container in a state that the bin cover is opened;
the infant incubator is supported by the supporting platform when being pushed out of the transfer trolley;
the scanning device comprises a superconducting magnet subsystem, a gradient subsystem and a radio frequency subsystem.
Optionally, an internal slide rail and a slide for placing a neonate are provided on the base, the slide being translatable along the internal slide rail to urge the neonate translation into the scanning container.
Optionally, the scanning container is a double-layer toughened glass cylinder, and a vacuum layer or a glue-sandwiched silencing layer is arranged between the two layers.
Optionally, an oxygen outlet is arranged in the placing bin, and oxygen is conveyed to the placing bin and the scanning container through the oxygen outlet.
Optionally, a heat dissipation hole is arranged in the placing bin, and a water circulation heating mode is adopted to enable the placing bin and the scanning container to keep the target temperature.
Optionally, a temperature and humidity probe is arranged in the placing bin and used for detecting temperature and humidity.
Optionally, an electrocardiograph monitor is arranged in the accessory bin, and a data acquisition interface is arranged in the placing bin;
and a copper net is arranged on the surface of the accessory bin and is used for converting electromagnetic signals of the electrocardiograph monitor into vortex to be consumed.
Optionally, the aperture of the superconducting magnet subsystem is 210-230mm, the diameter of the DSV is 180mm, and the magnetic resonance DSV of the whole body is 450mm;
the gradient subsystem adopts a target field method to design X, Y and Z gradient coils, and the gradient field intensity in an imaging range is 100mT/m;
the inner diameter of a transmitting radio frequency coil of the radio frequency subsystem is 220mm.
Optionally, a space exists between the support platform and the scanning device for blocking the propagation path of sound through the solid.
The invention provides a neonate magnetic resonance examination system, which comprises a scanning sickbed, wherein the scanning sickbed comprises a transfer trolley and an infant incubator, and the infant incubator is arranged on the transfer trolley and moves along with the transfer trolley; the transfer trolley is provided with an external guide rail for guiding the baby incubator to move, the baby incubator can translate relative to the transfer trolley along the external guide rail, and when the baby incubator reaches a detection position, the baby incubator moves along the external guide rail to push out the transfer trolley; the infant incubator comprises a scanning container, a placing bin and a fitting bin, wherein the placing bin is provided with a base and a bin cover, the scanning container is arranged on the base, and a newborn can be placed in the scanning container for inspection under the state that the bin cover is opened; the accessory bin is provided with an auxiliary instrument, the scanning container can be used for the newborn to lie down and realize limiting, random movement of the newborn is avoided, the scanning container can extend into the scanning device along with the translation of the infant incubator during examination, and the magnetic resonance examination process of the newborn can be completed.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is an isometric view of one embodiment of a scanning hospital bed;
FIG. 2 is a schematic diagram of a neonatal magnetic resonance examination system according to an embodiment of the present invention;
FIG. 3 is a schematic view of a transfer cart docked to a support platform;
FIG. 4 is a schematic view of the transfer of the incubator to the support platform;
fig. 5 is a schematic view of the neonatal magnetic resonance examination system of the present invention in an examination state.
The drawings include:
scanning sickbed 1, transfer car 11, incubator 12, scanning container 121, place storehouse 122, base 1221, storehouse lid 1222, slide 1223, oxygen export 1224, louvre 1225, temperature and humidity probe 1226, data acquisition interface 1227, accessory storehouse 123, scanning device 2, supporting platform 3.
Detailed Description
The core of the invention is to provide a neonate magnetic resonance examination system which can be matched with the body size of the neonate and is beneficial to better completing magnetic resonance detection examination.
In order to make the technical scheme of the present invention better understood by those skilled in the art, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The present invention provides a magnetic resonance examination system for a newborn infant (MRI, magnetic Resonance Imaging), which is a baby having a fetal delivery and umbilical cord ligature to a child within 28 days after birth, but the magnetic resonance examination system for a newborn infant is not limited to this, and can be used for an infant who is not yet walking. The neonatal magnetic resonance examination system comprises a scanning sickbed 1, wherein the scanning sickbed 1 is a module of the neonatal magnetic resonance examination system. The scanning sickbed 1 comprises a transfer trolley 11 and an infant incubator 12, wherein the infant incubator 12 is arranged on the transfer trolley 11, wheels are arranged at the bottom of the transfer trolley 11, and the infant incubator 12 can be driven to move to push different positions. Incubator 12 is primarily used to house and hold newborns for examination.
Set up the outside guide rail that is used for guiding baby incubator 12 to remove on the transfer car (buggy) 11, baby incubator 12 can follow outside guide rail translation, and baby incubator 12 can be for transfer car (buggy) 11 translational motion, when needs inspection, release baby incubator 12 from transfer car (buggy) 11, make baby incubator 12 whole or partly shift out transfer car (buggy) 11, send into the neonate in the middle of the scanning device 2 and inspect.
Incubator 12 includes a scanning vessel 121, a placement bin 122, and an accessory bin 123, accessory bin 123 providing auxiliary instrumentation for maintaining an environment inside scanning vessel 121 and placement bin 122 suitable for neonatal survival. The scanning container 121 is used for the newborn to lie down and limit, and can be fixed by adopting a cloth tie, the size of the scanning container 121 is matched with the body size of the newborn and is smaller than the body size of an adult, and the outer shell of the incubator 12 and the scanning container 121 are made of glass fiber reinforced plastic materials with extremely low magnetic susceptibility.
The scanning container 121 can be moved into the scanning device 2 along with the incubator 12 in a translational manner, and the incubator 12 is completely supported by the transfer trolley 11 in the process of transferring the scanning sickbed 1, and the transfer trolley 11 can move the incubator 12 to different positions. When an inspection is required, the incubator 12 translates along the external guide rail provided on the transfer cart 11, so that the incubator 12 is partially or completely moved out of the transfer cart 11, and the scanning container 121 extends into the scanning device 2 for inspection.
The placing bin 122 is provided with a base 1221 and a bin cover 1222, the scanning container 121 is mounted on the base 1221, the scanning container 121 is in a cylindrical structure, one end of the scanning container 121 is connected to the base 1221, the other end of the scanning container is suspended, the suspended end of the scanning container 121 is a closed end, the end connected to the base 1221 is an open end, and a neonate can put into the scanning container 121 in a state that the bin cover 1222 is opened. The base 1221 plays a supporting role, and the bin cover 1222 can form a closed space with the base 1221 when being closed, and is isolated relatively from the outside, so that the influence of noise during examination on the neonate can be reduced.
The cylindrical side wall of the scanning container 121 can form a limit for the neonate, so that the neonate is prevented from randomly moving; the scan container 121 encloses the neonate and may form an isolation layer providing some protection for the neonate. Since the scanning container 121 has a cantilever structure, a newborn baby positioned in the scanning container 121 can be sent to the scanning device 2, and the newborn baby can be sent to the scanning device 2 by moving the incubator 12, which is more convenient than directly sending the newborn baby to the scanning device 2.
Based on the above-mentioned scheme, the present invention provides an internal slide rail and a slide base 1223 for placing the neonate on the base 1221, the slide base 1223 can translate along the internal slide rail to push the neonate into the scan container 121 in translation, the slide base 1223 can support the neonate, the neonate is placed on the slide base 1223, and the neonate moves into the scan container 121 along with the slide base 1223. The carriage 1223 may extend entirely or partially into the scan container 121 or may not extend entirely into the scan container 121. Since only one end of the scan container 121 is provided with an access passage, the convenience of placement can be improved by the slide 1223 as compared to directly placing a newborn into the scan container 121.
In one embodiment, the scanning container 121 provided by the invention is a double-layer toughened glass cylinder, and a vacuum layer or a glue-sandwiched silencing layer is arranged between the two layers of toughened glass cylinders, so that the scanning container 121 needs to extend into the scanning device 2 during inspection, the noise is more concentrated, the noise can be effectively reduced through a double-layer structure, and the influence of the noise on a neonate is reduced.
Still further, the present invention provides an oxygen outlet 1224 within the placement chamber 122, the oxygen outlet 1224 being connected to an oxygen source, and oxygen being delivered to the placement chamber 122 and the scanning vessel 121 through the oxygen outlet 1224 to maintain the neonatal oxygen requirement. The air source may be located in the accessory bin 123 or may be located elsewhere.
The placing bin 122 is internally provided with the heat dissipation holes 1225, the placing bin 122 and the scanning container 121 are kept at target temperature by adopting a water circulation heating mode, the water circulation heats air, and the air rising to a proper temperature enters the placing bin 122 and the scanning container 121, so that the interior of the placing bin 122 and the scanning container can be kept at a proper temperature, and the neonate is prevented from losing temperature; and the humidity inside the placing bin 122 and the scanning container 121 can be raised.
The temperature and humidity probe 1226 is disposed in the placement bin 122, and the temperature and humidity probe 1226 is used for detecting temperature and humidity, and can send detection data to the controller, and the controller adjusts the temperature and humidity inside the placement bin 122 and the scanning container 121.
An electrocardiograph monitor is arranged in the accessory bin 123, a data acquisition interface 1227 is arranged in the placing bin 122, the data acquisition interface 1227 is used for connecting detection lines, the detection lines are attached to the body of the neonate, and electrocardiograph data of the neonate can be monitored.
Furthermore, a copper mesh can be installed on the surface of the accessory bin 123, so that electromagnetic signals of the internal electrocardiograph monitor are converted into eddy currents in the copper mesh to be consumed, and interference of the electrocardiograph monitor on magnetic resonance detection is avoided.
On the basis of any one of the technical schemes and the mutual combination thereof, the infant incubator comprises a scanning device 2 and a supporting platform 3, wherein the supporting platform 3 is used for being in butt joint with a transfer trolley 11, and the infant incubator 12 is supported by the supporting platform 3 when pushed out of the transfer trolley 11; referring to fig. 2 to 5, three processes of the transfer vehicle 11 driving the incubator 12 to approach the support platform 3, docking the support platform 3, and transferring the incubator 12 to the support platform 3 are illustrated. The supporting platform 3 is also provided with a guide rail, and the guide rail arranged on the supporting platform 3 can be butted with an external guide rail arranged on the transfer trolley 11 so as to realize the transfer of the infant incubator 12. The connecting buckle is arranged at one end of the transfer trolley 11, which is close to the supporting platform 3, and can be relatively fixed with the supporting platform 3 when the transfer trolley 11 moves in place, so that accidental movement in the process of pushing the infant incubator 12 is prevented.
The scanning device 2 comprises a superconducting magnet subsystem, a gradient subsystem and a radio frequency subsystem.
The aperture of the superconducting magnet subsystem is 210-230mm, the diameter of DSV is 180mm, and the magnetic resonance DSV of the whole body is 450mm; the aperture of the superconducting magnet is 210-230mm, the diameter of DSV (diameter of spherical volume sphere volume diameter, which refers to effective imaging space) is 180mm, the diameter of the head of a newborn is about 110mm, the magnetic resonance DSV of the whole body is about 450mm, which is easy to cause convolution artifacts, and the conventional method for inhibiting the convolution artifacts is oversampling, but the oversampling can prolong the scanning time. Magnetic field strength 3T, no magnetic resonance system for the 3T field strength of neonatal imaging exists at present, the magnetic field uniformity is less than 5ppm, and the radial and axial shimming coils of 2-order and 3-order are added to further optimize the uniformity of an imaging area. Can completely meet the requirements of high-definition scanning imaging of the head and the whole body of the newborn. Compared with whole-body magnetic resonance, the special magnetic resonance magnet for the newborn has the advantages of greatly reduced occupied space and relatively low manufacturing cost.
The gradient subsystem adopts a target field method to design X, Y and Z gradient coils, and the gradient field intensity in an imaging range is 100mT/m; the gradient subsystem adopts a target field method to design X, Y and Z gradient coils, can reach high-intensity gradient field intensity of 100mT/m in an imaging range, is more than twice of the whole-body gradient field intensity, and realizes high-resolution imaging; the switching rate is 500T/m/s, so that the imaging speed is effectively improved; can overcome the defect that the whole-body magnetic resonance is not clear due to the special brain structure imaging of the newborn. Because the aperture of the magnet is smaller, the aperture of the gradient coil is correspondingly reduced, the current utilization rate of the gradient field generated by the current is greatly improved, the gradient field intensity required by scanning can be achieved under the current of about 200A, the reduction of the current means that the vibration of the working chamber of the gradient coil is reduced, and therefore, the noise generated during scanning is lower than that of the gradient coil of the whole-body large-aperture magnet.
The inner diameter of the transmitting radio frequency coil of the radio frequency subsystem is 220mm, and the inner diameter of the transmitting radio frequency coil of the whole body of the radio frequency subsystem is about 600mm, the inner diameter of the transmitting radio frequency coil equipped for the MRI of the neonate is only about 220mm, the reduction of the aperture can greatly reduce the transmitting power of the radio frequency coil, and the harm to the neonate due to the thermal effect of radio frequency electromagnetic waves is reduced.
The invention has the advantages of higher resolution due to high gradient field intensity, faster imaging due to high switching rate, and smaller heating due to small aperture and reduced emission power.
The support platform 3 and the scanning device 2 are spaced, so that the propagation path of sound through the solid is blocked, and the influence of noise on the MRI examination of the newborn is reduced.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The neonatal magnetic resonance examination system is characterized by comprising a scanning sickbed (1), wherein the scanning sickbed (1) comprises a transfer trolley (11) and an infant incubator (12), the infant incubator (12) is placed on the transfer trolley (11), an external guide rail used for guiding the infant incubator (12) to move is arranged on the transfer trolley (11), and the infant incubator (12) can translate along the external guide rail;
the incubator (12) comprises a scanning container (121), a placing bin (122) and an accessory bin (123), wherein the accessory bin (123) is provided with auxiliary instruments; the scanning container (121) is used for enabling a newborn to lie down and limit; the scanning container (121) can horizontally move along with the infant incubator (12) and extend into the scanning device (2);
the placing bin (122) is provided with a base (1221) and a bin cover (1222), the scanning container (121) is arranged on the base (1221), and a newborn can put into the scanning container (121) in a state that the bin cover (1222) is opened; -an internal slide rail and a slide (1223) for placing a neonate are provided on the base (1221), the slide (1223) being translatable along the internal slide rail to push the neonate in translation into the scanning container (121);
the infant incubator also comprises a scanning device (2) and a supporting platform (3), wherein the supporting platform (3) is used for being in butt joint with the transfer trolley (11), and the infant incubator (12) is supported by the supporting platform (3) when pushed out of the transfer trolley (11);
the scanning device (2) comprises a superconducting magnet subsystem, a gradient subsystem and a radio frequency subsystem.
2. The neonatal magnetic resonance examination system as claimed in claim 1, wherein the scanning container (121) is a double-layer tempered glass tube, between which a vacuum layer or a glue-sandwiched sound damping layer is arranged.
3. The neonatal magnetic resonance examination system as set forth in claim 1, wherein an oxygen outlet (1224) is provided in the placement cabin (122), through which oxygen outlet (1224) oxygen is fed to the placement cabin (122) and the scanning container (121).
4. The neonatal magnetic resonance examination system as set forth in claim 1, wherein a heat radiation hole (1225) is provided in the placement chamber (122), and a water circulation heating method is adopted to maintain the placement chamber (122) and the scanning container (121) at target temperatures.
5. The neonatal magnetic resonance examination system as set forth in claim 1, wherein a temperature and humidity probe (1226) is disposed in the placement bin (122), the temperature and humidity probe (1226) being configured to detect temperature and humidity.
6. The neonatal magnetic resonance examination system of claim 1, wherein an electrocardiograph is disposed in the accessory bin (123), and a data acquisition interface (1227) is disposed in the placement bin (122);
and a copper net is arranged on the surface of the accessory bin (123) and is used for converting electromagnetic signals of the electrocardiograph monitor into vortex to be consumed in the copper net.
7. The neonatal magnetic resonance examination system of claim 1, wherein the superconducting magnet of the superconducting magnet subsystem has a bore diameter of 210-230mm, a DSV diameter of 180mm, and a whole body magnetic resonance DSV of 450mm;
the gradient subsystem adopts a target field method to design X, Y and Z gradient coils, and the gradient field intensity in an imaging range is 100mT/m;
the inner diameter of a transmitting radio frequency coil of the radio frequency subsystem is 220mm.
8. Neonatal magnetic resonance examination system according to claim 1, characterized in that a space is present between the support platform (3) and the scanning device (2) for blocking the propagation path of sound through the solid.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311225993.8A CN116965799B (en) | 2023-09-22 | 2023-09-22 | Neonatal magnetic resonance examination system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311225993.8A CN116965799B (en) | 2023-09-22 | 2023-09-22 | Neonatal magnetic resonance examination system |
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| CN116965799A CN116965799A (en) | 2023-10-31 |
| CN116965799B true CN116965799B (en) | 2023-12-19 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0706446D0 (en) * | 2006-04-03 | 2007-05-09 | Gen Electric | Magnetic resonance imaging systems |
| DE202012104357U1 (en) * | 2012-11-12 | 2012-12-18 | Aspect Imaging Ltd. | Neonatal incubator and MRI docking station |
| WO2013115848A1 (en) * | 2012-02-02 | 2013-08-08 | Cincinnati Children's Hospital Medical Center | Mri transfer station and dock |
| CN107296609A (en) * | 2017-06-16 | 2017-10-27 | 上海联影医疗科技有限公司 | A kind of medical image scan localization method, system and computer-readable recording medium |
| CN208511025U (en) * | 2017-10-18 | 2019-02-19 | 韩华波 | A kind of magnetic resonance detection is with safety bed |
| CN210990293U (en) * | 2019-05-27 | 2020-07-14 | 上海联影医疗科技有限公司 | Magnetic resonance compatible air supply device and incubator |
| CN113520762A (en) * | 2021-04-15 | 2021-10-22 | 江苏力磁医疗设备有限公司 | Infant transfer equipment, imaging equipment and infant transfer imaging system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150005618A1 (en) * | 2011-01-04 | 2015-01-01 | Children's Hospital Medical Center | MRI Transfer Station |
| US9968279B2 (en) * | 2012-02-02 | 2018-05-15 | Children's Hospital Medical Center | MRI transfer table assembly |
| US20230255563A1 (en) * | 2022-02-16 | 2023-08-17 | Siemens Healthcare Gmbh | Insertable patient table for pediatric or small patients for a magnetic resonance imaging scanner |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0706446D0 (en) * | 2006-04-03 | 2007-05-09 | Gen Electric | Magnetic resonance imaging systems |
| WO2013115848A1 (en) * | 2012-02-02 | 2013-08-08 | Cincinnati Children's Hospital Medical Center | Mri transfer station and dock |
| DE202012104357U1 (en) * | 2012-11-12 | 2012-12-18 | Aspect Imaging Ltd. | Neonatal incubator and MRI docking station |
| CN107296609A (en) * | 2017-06-16 | 2017-10-27 | 上海联影医疗科技有限公司 | A kind of medical image scan localization method, system and computer-readable recording medium |
| CN208511025U (en) * | 2017-10-18 | 2019-02-19 | 韩华波 | A kind of magnetic resonance detection is with safety bed |
| CN210990293U (en) * | 2019-05-27 | 2020-07-14 | 上海联影医疗科技有限公司 | Magnetic resonance compatible air supply device and incubator |
| CN113520762A (en) * | 2021-04-15 | 2021-10-22 | 江苏力磁医疗设备有限公司 | Infant transfer equipment, imaging equipment and infant transfer imaging system |
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