CN110946580A - Nuclear magnetic resonance detection system - Google Patents

Nuclear magnetic resonance detection system Download PDF

Info

Publication number
CN110946580A
CN110946580A CN201911077699.0A CN201911077699A CN110946580A CN 110946580 A CN110946580 A CN 110946580A CN 201911077699 A CN201911077699 A CN 201911077699A CN 110946580 A CN110946580 A CN 110946580A
Authority
CN
China
Prior art keywords
sound
cabin
sound insulation
nuclear magnetic
magnetic resonance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201911077699.0A
Other languages
Chinese (zh)
Other versions
CN110946580B (en
Inventor
甄志铭
黎川
王新
程琳
胡晓飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
First Affiliated Hospital of PLA Military Medical University
Original Assignee
First Affiliated Hospital of PLA Military Medical University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by First Affiliated Hospital of PLA Military Medical University filed Critical First Affiliated Hospital of PLA Military Medical University
Priority to CN201911077699.0A priority Critical patent/CN110946580B/en
Publication of CN110946580A publication Critical patent/CN110946580A/en
Application granted granted Critical
Publication of CN110946580B publication Critical patent/CN110946580B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/05Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/055Detecting, 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
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A90/00Technologies having an indirect contribution to adaptation to climate change
    • Y02A90/30Assessment of water resources

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Radiology & Medical Imaging (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

The invention discloses a nuclear magnetic resonance detection system which is provided with a nuclear magnetic scanning device and a sliding bed, wherein a sound insulation cabin made of non-magnetic materials is placed on the sliding bed, the sound insulation cabin is provided with a one-way sound transmission channel, the one-way sound transmission channel is communicated with the inside and the outside of the sound insulation cabin, and a sound transmission direction switching device is arranged in the channel. Noise when insulating the inspection through the cabin that gives sound insulation, avoid the noise to influence foetus and pregnant woman to the pregnant woman in the cabin that gives sound insulation can contact with the doctor through one-way transaudient passageway.

Description

Nuclear magnetic resonance detection system
Technical Field
The present invention relates to the field of measurements for diagnostic purposes, in particular to measurements of nuclear magnetic resonance.
Background
Each pregnant woman may be subjected to multiple ultrasound examinations during pregnancy to determine fetal growth. The main principle of the ultrasonic examination is that an ultrasonic probe scans the uterus of a pregnant woman, the ultrasonic probe continuously sends out ultrasonic waves in the scanning process, receives the ultrasonic waves reflected after meeting a fetus, and determines the condition of the fetus according to the echo condition. Although ultrasound examination is a routine examination, the resulting fetal image is relatively blurred. Therefore, when a clear image of the fetus needs to be obtained, the fetus is usually examined by nuclear magnetic resonance.
The nuclear magnetic resonance apparatus can generate very large noise during working, the noise not only can influence the emotion of a pregnant woman, but also has certain influence on the development of a fetus, the fetal movement is easily caused, and the quality of a magnetic resonance image and the inspection process are interfered. In order to solve the problem, the prior art generally adopts a semi-closed sound insulation device to reduce the influence of noise on the fetus, and simultaneously reduces the influence of noise on the pregnant woman through an earplug, such as a nuclear magnetic resonance instrument noise reduction protection device (publication No. CN 207837550U).
Although the existing noise insulation device can achieve a certain noise insulation effect, noise can still enter the noise insulation device along an unsealed position, and therefore, the existing noise insulation device has a poor noise insulation effect. In addition, during the nuclear magnetic examination, doctors need to communicate with the pregnant women from time to guide the pregnant women to examine according to a correct examination mode, so that the pregnant women need to repeatedly take the earplugs, which also has a great influence on the mood of the pregnant women.
Disclosure of Invention
In order to solve the technical problems, the invention provides a nuclear magnetic resonance detection system which can form a closed sound insulation space in the whole body range of a pregnant woman, prevent noise generated by nuclear magnetic resonance from affecting the pregnant woman and a fetus, and establish a sound channel between the interior of a sound insulation cabin and the outside when a doctor needs to communicate with the pregnant woman, so that the doctor can communicate with the pregnant woman.
The technical scheme is as follows:
the utility model provides a nuclear magnetic resonance detecting system, is provided with nuclear magnetic scanning device and sliding bed, places the syllable-dividing cabin that non-magnetic material made on this sliding bed, and this syllable-dividing cabin is provided with one-way biography sound passageway, and this one-way biography sound passageway intercommunication the inside and the external world in syllable-dividing cabin, and the passageway is inside to be provided with and to pass sound direction auto-change over device.
In a first implementation manner, the sound transmission direction switching device comprises an upper plane and a lower plane which are arranged in parallel, the upper plane and the lower plane are both provided with a corresponding reflection device and a corresponding super-surface device, the reflection device is provided with a reflection inclined plane and a switching mechanism, the reflection surface of the reflection inclined plane faces to a channel port of the unidirectional sound transmission channel and forms an included angle of 135 degrees with the corresponding plane, and the switching mechanism is used for driving the reflection inclined plane to rotate and switching the channel port towards which the reflection inclined plane faces;
the super surface device is provided with a reflecting plate and a driving mechanism, 2 acoustic super surfaces are arranged on the surface of the reflecting plate, the 2 acoustic super surfaces correspond to the 2 sound transmission directions of the unidirectional sound transmission channel respectively, and the driving mechanism drives the reflecting plate to switch the 2 acoustic super surfaces.
In combination with the first implementable manner, in the second implementable manner, the switching mechanism is provided with 2 linked telescopic links, fixed ends of the 2 telescopic links are fixed with the corresponding planes, and the other ends are respectively hinged with the upper end and the lower end of the reflecting plate.
In a third implementable manner, the sound transmission direction switching device is provided with 2 one-way sound transmission pipelines, the sound transmission directions of the 2 one-way sound transmission pipelines are opposite, and the sound transmission directions are arranged side by side in the one-way sound transmission channel, the pipeline opening of each one-way sound transmission pipeline is provided with a sound insulation door, and the 2 sound insulation doors are connected through an interlocking mechanism.
In a fourth mode of realization, the sound insulation cabin is provided with a cabin bottom and a cabin cover, one side of the cabin cover is hinged with the cabin bottom, and the edge of the cabin cover is provided with a sound insulation pad.
In combination with the fourth implementable manner, in a fifth implementable manner, the canopy is made of a transparent sound insulating material.
In a sixth implementation manner, the detection device is further provided with a physiological monitoring device, a monitoring sensor of the physiological monitoring device is arranged in the sound insulation cabin, a bulkhead of the sound insulation cabin is provided with a wire passing hole, and a signal wire of the monitoring sensor penetrates out of the sound insulation cabin along the wire passing hole and then is in signal connection with a monitoring terminal of the physiological monitoring device.
With reference to any one of the first to sixth implementable manners, in an eighth implementable manner, the detecting device is further provided with an air conditioning device, the air conditioning device is provided with an exhaust device and an oxygen concentration adjusting device, an exhaust port of the exhaust device and an air supply port of the oxygen concentration adjusting device are respectively communicated with the soundproof compartment through a ventilation hose, and an oxygen concentration sensor of the oxygen concentration adjusting device is arranged in the ventilation hose between the soundproof compartment and the exhaust device.
Has the advantages that:
1. can form closed syllable-dividing space, isolated noise among the nuclear magnetic inspection process avoids pregnant woman and foetus to receive the influence of noise.
2. The pregnant woman can keep in touch with the outside during the examination process.
3. The structure of the existing nuclear magnetic resonance equipment does not need to be changed, the existing equipment is convenient to transform, and the use of the existing nuclear magnetic resonance equipment is not influenced after the transformation.
4. Can adjust the oxygen concentration in the sound-proof cabin and improve the safety and the comfort of the pregnant woman.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of the soundproof compartment 3;
fig. 3 is a schematic structural view of a sound transmission direction switching device according to an embodiment;
fig. 4 is a schematic structural view of the reflection plate 12 in fig. 3;
fig. 5 is a schematic view of the sound propagation direction of the unidirectional sound transmission channel 4 in embodiment 1;
FIG. 6 is a schematic view of the direction of sound propagation in contrast to FIG. 5;
fig. 7 is a schematic structural diagram of the second embodiment.
Detailed Description
The invention is further illustrated by the following examples and figures.
First embodiment, as shown in fig. 1, a schematic structural diagram of a nuclear magnetic resonance detection system is shown, the detection device is provided with a nuclear magnetic scanning device 1 and a sliding bed 2, a sound insulation cabin 3 made of a non-magnetic material is placed on the sliding bed 2, the sound insulation cabin 3 is provided with a one-way sound transmission channel 4, the one-way sound transmission channel 4 communicates the inside of the sound insulation cabin 3 with the outside, and a sound transmission direction switching device is arranged inside the channel.
Particularly, nuclear magnetic scanning device 1 and slide bed 2 are current device, form a confined syllable-dividing space through placing syllable-dividing cabin 3 on slide bed 2, during the inspection pregnant woman only need lie in syllable-dividing cabin 3 can, need not wear any wearable equipment. The sound insulation cabin 3 can isolate the noise generated by the nuclear magnetic scanning device 1 in the examination process, and provides a quiet and comfortable examination environment for the pregnant woman. In order to avoid influencing the nuclear magnetic examination, the unidirectional sound transmission channel 4 and the sound transmission direction switching device are both made of non-magnetic materials.
The unidirectional sound transmission channel 4 can establish a unidirectional sound transmission channel inside and outside the sound insulation cabin 3, sound in the sound insulation cabin 3 can be transmitted to the outside along the unidirectional sound transmission channel 4, and outside noise cannot be transmitted into the sound insulation cabin 3. Thus, the sound insulation cabin 3 can be kept quiet, and a doctor can listen to the sound in the sound insulation cabin 3 in real time through the existing communicator in the nuclear magnetic resonance examination room to know the condition of the person to be tested.
The doctor can pass the direction of sound that sound direction auto-change over device can switch 4 one-way sound channel's the direction of passing sound, will pass the sound direction by 3 inside to 3 outsides in soundproof cabin of original soundproof cabin, switch into by 3 outsides in soundproof cabin 3 to 3 insides in soundproof cabin. Thus, the sound emitted by the doctor through the communicator can be transmitted into the sound insulation cabin 3.
In this embodiment, preferably, as shown in fig. 3, the sound transmission direction switching device includes an upper plane 6 and a lower plane 7 which are arranged in parallel, the upper plane 6 and the lower plane 7 are both provided with a corresponding reflection device 8 and a corresponding super-surface device 9, the reflection device 8 is provided with a reflection inclined plane 10 and a switching mechanism 11, the reflection surface of the reflection inclined plane 10 faces the passage opening of the unidirectional sound transmission passage 4 and forms an included angle of 135 degrees with the corresponding plane, and the switching mechanism 11 is configured to drive the reflection inclined plane 10 to rotate, so as to switch the passage opening which the reflection inclined plane 10 faces;
the super-surface device 9 is provided with a reflecting plate 12 and a driving mechanism 15, the surface of the reflecting plate is provided with 2 acoustic super-surfaces 13, the 2 acoustic super-surfaces 13 are respectively matched with the 2 states of the reflecting device 8, and the driving mechanism 15 drives the reflecting plate 12 to switch the acoustic super-surfaces 13 matched with the reflecting device 8.
As shown in fig. 5, the one-way sound transmission duct 4 includes a duct port a communicating with the inside of the soundproof compartment 3 and a duct port b communicating with the outside. At the time of examination, the sound transmission direction of the one-way god passage 4 is maintained from the passage port a to the passage port b.
The sound of the tested person enters from the channel opening a of the one-way sound transmission channel 4, when the sound is transmitted to the reflecting inclined plane 10, the sound is reflected to the acoustic super surface 13 of the corresponding super surface device 9 in the forward direction, the acoustic super surface 13 has the function of abnormal reflection, so that the sound wave incident in the forward direction completely passes through, and the sound wave incident in the reverse direction is completely reflected, thereby realizing the one-way transmission of the sound. And the one-way sound transmission channel 4 can circulate air to play a certain ventilation role. The specific sound one-way propagation principle is disclosed in the patent "broadband one-way sound transmission channel" (publication number CN104795061A), and is not described herein.
When a doctor communicates with a tested person, the reflecting surface of the reflecting inclined surface 10 can be switched to the channel opening b facing the channel opening b through the switching mechanism 11, the reflecting plate 12 is driven by the driving mechanism 15 to switch the acoustic super surface 13 matched with the reflecting device 8, and the sound transmission direction is switched from the channel opening b to the channel opening a, so that the sound emitted by the doctor through the communication device can enter the soundproof cabin 3.
In this embodiment, preferably, as shown in fig. 3, the switching mechanism 11 is provided with 2 linked telescopic rods 16, and the fixed ends of the 2 telescopic rods 16 are fixed to the corresponding planes, and the other ends are hinged to the upper end and the lower end of the reflection plate 12, respectively.
As shown in fig. 3, the upper plane 6 and the lower plane 7 are both provided with a reflective groove 24, two side groove walls of the reflective groove 24 are provided with a receiving groove 25, the reflective plate 12 is received in the receiving groove 25 and connected with the driving mechanism 15, the driving mechanism 12 is a hydraulic screw rod, and the hydraulic screw rod drives the reflective plate 12 to extend into the reflective groove 24.
As shown in fig. 4, the 2 acoustic super surfaces 13 are a first acoustic super surface 13a and a second acoustic super surface 13b, respectively, and the first acoustic super surface 13a and the second acoustic super surface 13b are sequentially arranged in the driving direction of the hydraulic screw. Wherein, the sound transmission direction corresponding to the first acoustic super surface 13a is from a channel port a to a channel port b, and the sound transmission direction corresponding to the second acoustic super surface 13b is from the channel port b to the channel port a.
As shown in fig. 5, when the sound transmission direction is from the passage port a to the passage port b, the driving mechanism 15 drives the reflection plate 12 to protrude out of the accommodation groove 25 until the first acoustic super surface 13a protrudes entirely into the reflection groove 24. In this way, the sound wave reflected by the reflecting slope 10 can be transmitted from the passage opening b by the secondary reflection of the first acoustic super surface 13 a.
As shown in fig. 6, when the sound transmission direction is from the passage opening b to the passage opening a, the telescopic rods 16 can be hydraulically driven telescopic rods or pneumatically driven telescopic rods by interchanging the lengths of the 2 telescopic rods 16 and pushing the transmitting plate 12 to move through the hydraulic lead screw. The 2 telescopic rods 16 need to maintain the same telescopic speed during the switching process. Meanwhile, the driving mechanism 15 drives the reflection plate 12 to continue to protrude out of the accommodation groove 25 until the second acoustic super surface 13b protrudes into the reflection groove 24 and the first acoustic super surface 13a protrudes into the accommodation groove 25 on the other side of the reflection groove 24. Thus, the sound wave entering the unidirectional sound transmission channel 4 from the channel opening b can be reflected to the second acoustic super-surface 13b by the reflection inclined plane 10, and then can be transmitted out from the channel opening a by the reflection of the second acoustic super-surface 13 b.
In this embodiment, it is preferable that, as shown in fig. 2, the soundproof compartment 3 is provided with a floor 20 and a compartment cover 21, one side of the compartment cover 21 is hinged to the floor 20, and the edge of the compartment cover 21 is provided with a soundproof pad 22.
When the cabin cover 21 and the cabin bottom 20 are folded, the sound insulation pad 22 can seal the gap between the cabin cover 21 and the cabin bottom 20, so that a completely closed sound insulation space is formed, and a pregnant woman can lie in the sound insulation space and is completely free from the influence of external noise. And cabin cover 21 can be hollow structure, and the hollow position is the vacuum, has reduced cabin cover 21 weight when having promoted syllable-dividing effect, conveniently opens cabin cover 21.
In the present embodiment, it is preferable that the cabin cover 21 is made of a transparent soundproof material. The pregnant woman can observe the external condition through the transparent cabin cover 21, so that the pregnant woman can be prevented from claustrophobia, and the comfort of the detection system is improved. Moreover, a doctor can observe the condition of the pregnant woman in the sound insulation cabin 3 through a camera arranged on the existing nuclear magnetic scanner.
In this embodiment, preferably, a physiological monitoring device is further provided, a monitoring sensor of the physiological monitoring device is disposed in the soundproof cabin 3, a cabin bottom 20 of the soundproof cabin 3 is provided with 4 wire passing holes 23, the 4 wire passing holes 23 are respectively distributed around the cabin bottom 20, and a signal line of the monitoring sensor passes through the wire passing holes 23 and then is in signal connection with a monitoring terminal of the physiological monitoring device after passing through the soundproof cabin 3.
The physiological monitoring device can be an existing nuclear magnetic compatible monitor, such as TESLA Duo, Draeger TeslaM3, Schiller MAGlife and other nuclear magnetic compatible monitors. When the monitoring device is used, the monitoring sensor is fixed at the corresponding position of the body of a pregnant woman, and a signal joint of the monitoring sensor is connected with a monitoring terminal placed in a nuclear magnetic examination room, so that a doctor can know the physiological characteristic condition of the pregnant woman in real time through the monitoring terminal, and the safety of the pregnant woman is ensured. Furthermore, the signal lines of the detection coils of the nuclear magnetic resonance scanner 1 can extend out of the soundproof compartment 3 along the 4 wire through holes 23 to be connected with the signal processing terminal of the nuclear magnetic resonance scanner 1.
The existing magnetic resonance examination of the fetus needs a pregnant woman to hold breath for a plurality of times for a long time, so that the blood oxygen content of the pregnant woman is reduced, and the safety and the comfort of the examination of the pregnant woman are not high. In this embodiment, it is preferable that an air conditioner is further provided, the air conditioner is provided with an exhaust device a and an oxygen concentration adjusting device B, an exhaust port of the exhaust device a and an air supply port of the oxygen concentration adjusting device B are respectively communicated with the soundproof compartment 3 through an air hose C, and an oxygen concentration sensor of the oxygen concentration adjusting device B is provided in the air hose C between the soundproof compartment and the exhaust device a.
Specifically, the air discharge device a can discharge the air in the soundproof compartment 3, as in the conventional air extractor. The oxygen concentration regulating device B can regulate the oxygen concentration of the air in the sound-proof cabin 3 according to the oxygen concentration detected by the oxygen concentration sensor, such as 'an oxygen concentration regulating device' (publication number 208771224U) in the prior patent, thereby increasing the blood oxygen concentration of the pregnant woman and improving the safety and comfort of detection.
The front end and the rear end of the sound insulation cabin 3 are respectively provided with a hose connector 17, and after a pregnant woman lies in the sound insulation cabin 3, the cabin cover 21 is closed. Then 2 ventilation hoses C are respectively communicated with hose connectors 17 at the front end and the rear end of the sound insulation cabin 3, and are communicated with an exhaust device A and an oxygen concentration adjusting device B which are placed in a nuclear magnetic examination room.
The nuclear magnetic resonance radio frequency can enable the pregnant woman to generate heat, the sound insulation cabin 3 can form air circulation through the oxygen concentration adjusting device B and the exhaust device A, heat generated by the pregnant woman is taken out of the sound insulation cabin 3, the interior of the sound insulation cabin 3 is kept cool, and therefore the pregnant woman can keep calm.
The invention has good sound insulation effect, comfort and high safety, so the invention can also be used for examination of children under 8 years old, brain function scientific research and the like. And the oxygen concentration adjusting device B can be switched to a gas anesthesia device for animal experiments.
The second embodiment and the second embodiment are substantially the same as the first embodiment, and the main differences are as follows: pass a sound direction auto-change over device and be provided with 2 one-way biography sound pipelines 18, 2 one-way biography sound pipelines 18 pass a sound opposite direction, and set up side by side in the one-way biography sound passageway 4, the pipeline mouth department of every one-way biography sound pipeline 18 all is provided with soundproof door 19, and connects through interlocking mechanism between 2 soundproof door 19.
Specifically, one-way sound transmission pipeline 18 is the same as current one-way sound transmission channel 4 structure, as above-mentioned patent "one-way sound transmission channel of broadband", can switch 2 soundproof doors 19's on-off state through interlocking mechanism, thereby switch the one-way sound transmission pipeline 18 with sound transmission channel intercommunication, because 2 one-way sound transmission pipeline 18's sound transmission direction is opposite, consequently can realize switching the mesh of sound transmission direction, interlocking mechanism is the same with current interlocking door mechanism, and in order to avoid the influence of the strong magnetic field that nuclear magnetic scanning equipment produced, this interlocking mechanism can adopt current pneumatic interlocking mechanism.
For example, 1 pneumatic rotary motor 5 is arranged between 2 unidirectional sound transmission pipelines 18, the rotating shaft of the pneumatic rotary motor 5 is fixed with 2 sound insulation doors 19, the 2 sound insulation doors 19 are centrosymmetric relative to the rotating shaft, and the pneumatic rotary motor 5 drives the 2 sound insulation doors 19 to rotate, so that the interlocking of the 2 sound insulation doors 19 of the unidirectional sound transmission pipelines 18 is realized.
Finally, it should be noted that the above-mentioned description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and scope of the present invention.

Claims (8)

1. The utility model provides a nuclear magnetic resonance detecting system, is provided with nuclear magnetic scanning device and sliding bed, its characterized in that: a sound insulation cabin made of non-magnetic materials is placed on the sliding bed, a one-way sound transmission channel is arranged in the sound insulation cabin and communicated with the inside and the outside of the sound insulation cabin, and a sound transmission direction switching device is arranged in the channel.
2. The nuclear magnetic resonance detection system of claim 1, wherein: the sound transmission direction switching device comprises an upper plane and a lower plane which are arranged in parallel, the upper plane and the lower plane are both provided with a corresponding reflection device and a corresponding super-surface device, the reflection device is provided with a reflection inclined plane and a switching mechanism, the reflection surface of the reflection inclined plane faces to a channel port of the unidirectional sound transmission channel and forms a 135-degree included angle with the corresponding plane, and the switching mechanism is used for driving the reflection inclined plane to rotate and switching the channel port towards which the reflection inclined plane faces;
the super surface device is provided with a reflecting plate and a driving mechanism, 2 acoustic super surfaces are arranged on the surface of the reflecting plate, the 2 acoustic super surfaces correspond to the 2 sound transmission directions of the unidirectional sound transmission channel respectively, and the driving mechanism drives the reflecting plate to switch the 2 acoustic super surfaces.
3. The nuclear magnetic resonance detection system of claim 2, wherein: the switching mechanism is provided with the telescopic link of 2 linkages, and the stiff end of 2 telescopic links is fixed with the plane that corresponds, the other end respectively with the upper end and the lower extreme of reflecting plate are articulated.
4. The nuclear magnetic resonance detection system of claim 1, wherein: biography sound direction auto-change over device is provided with 2 one-way biography sound pipelines, and 2 one-way biography sound pipelines's biography sound opposite direction, and set up side by side in the one-way biography sound passageway, the pipeline mouth department of every one-way biography sound pipeline all is provided with soundproof door, and connects through interlocking mechanism between 2 soundproof door.
5. The nuclear magnetic resonance detection system of claim 1, wherein: the sound insulation cabin is provided with a cabin bottom and a cabin cover, one side of the cabin cover is hinged with the cabin bottom, and the edge of the cabin cover is provided with a sound insulation pad.
6. The nuclear magnetic resonance detection system of claim 5, wherein: the canopy is made of a transparent sound insulating material.
7. The nuclear magnetic resonance detection system of claim 1, wherein: the monitoring device is also arranged, a monitoring sensor of the monitoring device is arranged in the sound insulation cabin, the sound insulation cabin is provided with a wire passing hole, and a signal wire of the monitoring sensor penetrates out of the sound insulation cabin along the wire passing hole and then is in signal connection with a monitoring terminal of the monitoring device.
8. The nmr detection system of any of claims 1-7, wherein: the air conditioning device is provided with an exhaust device and an oxygen concentration adjusting device, an exhaust port of the exhaust device and an air supply port of the oxygen concentration adjusting device are communicated with the sound insulation cabin through ventilation hoses respectively, and an oxygen concentration sensor of the oxygen concentration adjusting device is arranged in the ventilation hose between the sound insulation cabin and the exhaust device.
CN201911077699.0A 2019-11-06 2019-11-06 Nuclear magnetic resonance detection system Active CN110946580B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911077699.0A CN110946580B (en) 2019-11-06 2019-11-06 Nuclear magnetic resonance detection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911077699.0A CN110946580B (en) 2019-11-06 2019-11-06 Nuclear magnetic resonance detection system

Publications (2)

Publication Number Publication Date
CN110946580A true CN110946580A (en) 2020-04-03
CN110946580B CN110946580B (en) 2023-06-09

Family

ID=69976123

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911077699.0A Active CN110946580B (en) 2019-11-06 2019-11-06 Nuclear magnetic resonance detection system

Country Status (1)

Country Link
CN (1) CN110946580B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113288454A (en) * 2021-05-25 2021-08-24 侯菲菲 Device and method for reducing noise of nuclear magnetic resonance equipment

Citations (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05188975A (en) * 1992-01-16 1993-07-30 Toshiba Corp Noise prevention device
US5384537A (en) * 1992-05-07 1995-01-24 Kabushiki Kaisha Toshiba Nuclear magnetic resonance imaging system with noise reduced intercom
US5617026A (en) * 1993-09-17 1997-04-01 Hitachi Medical Corporation Quiet magnetic resonance imaging apparatus
JP2001204710A (en) * 2000-01-25 2001-07-31 Toshiba Corp Magnetic resonance imaging device
JP2001311722A (en) * 2000-04-28 2001-11-09 Nippon Soken Inc Gas detection device
CN1475094A (en) * 2000-11-13 2004-02-11 Լ������� ����� Directional microphone
JP2006093932A (en) * 2004-09-22 2006-04-06 Seiko Epson Corp Electrostatic ultrasonic transducer and ultrasonic speaker
CN1791805A (en) * 2003-05-22 2006-06-21 皇家飞利浦电子股份有限公司 Magnetic resonance imaging device with sound-absorbing means
US20080002837A1 (en) * 2006-06-30 2008-01-03 Kabushiki Kaisha Audio-Technica Variable directional condenser microphone unit
WO2008137003A1 (en) * 2007-04-30 2008-11-13 Acentech, Inc. Acoustic noise attenuation system for mri scanning
JP2011015856A (en) * 2009-07-09 2011-01-27 Toshiba Corp Magnetic resonance imaging equipment
CN103125125A (en) * 2010-10-11 2013-05-29 3M创新有限公司 Communication headset
JP2014200609A (en) * 2013-04-10 2014-10-27 興弘 小林 Mri voice communication device
US20150100310A1 (en) * 2013-10-08 2015-04-09 Samsung Electronics Co., Ltd. Apparatus and method of reducing noise and audio playing apparatus with non-magnet speaker
US20150126804A1 (en) * 2013-11-03 2015-05-07 Aspect Imaging Ltd. Foamed patient transport incubator
CN204439815U (en) * 2015-03-24 2015-07-01 南方医科大学 A kind of nuclear magnetic resonance noise reduction protective device
JP2016049130A (en) * 2014-08-28 2016-04-11 株式会社日立メディコ Magnetic resonance imaging device and sound insulating mat for magnetic resonance imaging device
CN207263911U (en) * 2017-10-23 2018-04-20 上海联影医疗科技有限公司 Denoising device and magnetic resonance system
CN108443631A (en) * 2018-04-12 2018-08-24 湖南大学 A kind of asymmetric acoustic propagation triangle superstructure
CN207837550U (en) * 2017-10-27 2018-09-11 张伟 A kind of nuclear magnetic resonance apparatus noise reduction protective device
CN209074613U (en) * 2017-10-25 2019-07-09 遵义医学院附属医院 A kind of nursing head holder structure of the maskable noise of magnetic resonance examination
CN110267137A (en) * 2019-05-27 2019-09-20 上海联影医疗科技有限公司 Transmission equipment and medical system
CN209574693U (en) * 2018-08-21 2019-11-05 中国人民解放军陆军军医大学第一附属医院 A kind of headgear for nuclear magnetic resonance

Patent Citations (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05188975A (en) * 1992-01-16 1993-07-30 Toshiba Corp Noise prevention device
US5384537A (en) * 1992-05-07 1995-01-24 Kabushiki Kaisha Toshiba Nuclear magnetic resonance imaging system with noise reduced intercom
US5617026A (en) * 1993-09-17 1997-04-01 Hitachi Medical Corporation Quiet magnetic resonance imaging apparatus
JP2001204710A (en) * 2000-01-25 2001-07-31 Toshiba Corp Magnetic resonance imaging device
JP2001311722A (en) * 2000-04-28 2001-11-09 Nippon Soken Inc Gas detection device
CN1475094A (en) * 2000-11-13 2004-02-11 Լ������� ����� Directional microphone
CN1791805A (en) * 2003-05-22 2006-06-21 皇家飞利浦电子股份有限公司 Magnetic resonance imaging device with sound-absorbing means
JP2006093932A (en) * 2004-09-22 2006-04-06 Seiko Epson Corp Electrostatic ultrasonic transducer and ultrasonic speaker
US20080002837A1 (en) * 2006-06-30 2008-01-03 Kabushiki Kaisha Audio-Technica Variable directional condenser microphone unit
WO2008137003A1 (en) * 2007-04-30 2008-11-13 Acentech, Inc. Acoustic noise attenuation system for mri scanning
JP2011015856A (en) * 2009-07-09 2011-01-27 Toshiba Corp Magnetic resonance imaging equipment
CN103125125A (en) * 2010-10-11 2013-05-29 3M创新有限公司 Communication headset
JP2014200609A (en) * 2013-04-10 2014-10-27 興弘 小林 Mri voice communication device
US20150100310A1 (en) * 2013-10-08 2015-04-09 Samsung Electronics Co., Ltd. Apparatus and method of reducing noise and audio playing apparatus with non-magnet speaker
US20150126804A1 (en) * 2013-11-03 2015-05-07 Aspect Imaging Ltd. Foamed patient transport incubator
JP2016049130A (en) * 2014-08-28 2016-04-11 株式会社日立メディコ Magnetic resonance imaging device and sound insulating mat for magnetic resonance imaging device
CN204439815U (en) * 2015-03-24 2015-07-01 南方医科大学 A kind of nuclear magnetic resonance noise reduction protective device
CN207263911U (en) * 2017-10-23 2018-04-20 上海联影医疗科技有限公司 Denoising device and magnetic resonance system
CN209074613U (en) * 2017-10-25 2019-07-09 遵义医学院附属医院 A kind of nursing head holder structure of the maskable noise of magnetic resonance examination
CN207837550U (en) * 2017-10-27 2018-09-11 张伟 A kind of nuclear magnetic resonance apparatus noise reduction protective device
CN108443631A (en) * 2018-04-12 2018-08-24 湖南大学 A kind of asymmetric acoustic propagation triangle superstructure
CN209574693U (en) * 2018-08-21 2019-11-05 中国人民解放军陆军军医大学第一附属医院 A kind of headgear for nuclear magnetic resonance
CN110267137A (en) * 2019-05-27 2019-09-20 上海联影医疗科技有限公司 Transmission equipment and medical system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113288454A (en) * 2021-05-25 2021-08-24 侯菲菲 Device and method for reducing noise of nuclear magnetic resonance equipment

Also Published As

Publication number Publication date
CN110946580B (en) 2023-06-09

Similar Documents

Publication Publication Date Title
Glover et al. An assessment of the intrauterine sound intensity level during obstetric echo-planar magnetic resonance imaging
Malinger et al. The corpus callosum: normal fetal development as shown by transvaginal sonography.
EP0571992A2 (en) Ultrasonic transducer assembly
AU2010273664A1 (en) Ultrasound probe and method of using the same
US8986212B2 (en) Ultrasonic diagnostic apparatus
WO2014073907A1 (en) Photoacoustic scanning apparatus for breast cancer diagnosis
AU4606697A (en) Photoacoustic breast scanner
EP1637082A4 (en) Ultrasonic diagnosis device
CN110946580A (en) Nuclear magnetic resonance detection system
CN211484583U (en) Magnetic resonance fetus noise protection and physiological monitoring device
WO2009040738A2 (en) Systems and methods for mechanical translation of full matrix array
WO2022227506A1 (en) Ultrasonic tomographic detection method and breast detection device having solid-state coupling medium
JPH08140970A (en) Ultrasonic diagnostic apparatus
CN101316555B (en) Patient-securing strap and patient-supporting device
CN100475156C (en) Ultrasound imaging method and real time ultrasound monitoring device in gynae treatment
CN207928332U (en) A kind of medical ultrasound wave diagnostic aid
US20110301460A1 (en) Self-administered medical ultrasonic imaging systems
CN112802594B (en) Remote diagnosis and treatment system
JPH023607B2 (en)
CN210631244U (en) Ultrasonic examination device
JPH05317309A (en) Ultrasonic probe for drill-piercing
KR101313560B1 (en) Ultrasonic diagnosis apparatus
CN213940781U (en) Ultrasonic imaging four-color guide wire and imaging device
CN106821422A (en) A kind of gynaecology's endoscope system and its application method
CN208096764U (en) Built-in rotating ultrasonic detection equipment

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant