Nuclear magnetic resonance communication system

Abstract

The invention relates to a nuclear magnetic resonance communication system, which comprises a receiving and transmitting device arranged in a control room; the sound-electricity conversion device is arranged in the scanning room, the air conduit microphone earphone is connected with the sound-electricity conversion device, the receiving and transmitting device is connected with the sound-electricity conversion device, and the air conduit microphone earphone is used for voice communication between the control room and the scanning room. And a noise reduction module is arranged after sound signals of the air conduit microphone earphone and the sound-electricity conversion device are converted into electric signals. Two-way transmission of voice information of a nuclear magnetic resonance control room and a nuclear magnetic resonance scanning room can be achieved, meanwhile, voice communication between doctors and nurses in the scanning room and voice communication between the doctors and the nurses and the control room can be achieved, and noise of the voice information received in the control room and the scanning room can be reduced; and the voice transmission quality and the use function are improved.

Description

Technical Field

[0001] An embodiment of the present invention relates to a nuclear magnetic resonance communication system, that is, a communication system that does not affect the normal operation of electronic equipment in the scene, and can also be used for effective and good communication in scenes with high-intensity various noises, especially in the application of nuclear magnetic resonance equipment systems in the field of medical equipment. Background Art

[0002] With the development of medical technology, MRI and CT examinations have become indispensable items in the medical field.

[0003] When performing nuclear magnetic resonance detection or CT detection, the detected person is in the scanning room, and the operator controls the equipment in the control room to scan the detected person. The scanning room and the control room are completely isolated, which causes the problem that the detected person and the operator cannot communicate. Although the existing nuclear magnetic resonance equipment or CT equipment is provided with a communication device in the control room, this communication device is usually one-way, and it can only transmit the sound in the control room to the scanning room, so that the detected person can follow the instructions of the operator and move. When the operator in the control room speaks to the detected person, the loudspeaker is installed at a high place, and the detected person often cannot hear clearly due to the influence of the high-intensity noise of nuclear magnetic resonance. In addition, the detected person in the scanning room cannot actively talk to the operator in the control room. When the detected person encounters an emergency or inapplicable situation in the scanning room, it is impossible to inform the operator in the control room to carry out emergency treatment, which may cause the nuclear magnetic resonance inspection or CT detection to be misdetected, reducing the accuracy and reliability of the nuclear magnetic resonance inspection or CT detection. The present invention not only enables the patient in the scanning room to talk to the doctor in the control room in time, but also provides a way for multiple doctors in the scanning room to talk to each other, nurses to talk to multiple doctors, and nurses to talk to the personnel in the control room.

[0004] The patent for a magnetic resonance imaging communication device applied for by the applicant on February 18, 2020 only discloses that the control room and the scanning room can communicate with each other, but cannot realize communication between each other in the scanning room. Because the noise in the scanning room is loud, if multiple people in the scanning room need to communicate, the noise will cause communication to be untimely, which will lead to problems. Summary of the invention

[0005] In view of the above technical deficiencies, the present application proposes a nuclear magnetic resonance communication system.

[0006] A nuclear magnetic resonance communication system includes a host arranged in a control room and multiple air duct earphones arranged in a scanning room. The host is provided with a microphone 8G, which can conduct voice calls with the multiple air duct earphones in the scanning room, and the multiple air duct earphones in the scanning room can conduct voice calls with each other.

[0007] The air duct of any air duct headset in the scanning room is connected to the microphone 3G through the microphone multi-channel 2G, and is connected to the host power amplifier through the noise reduction module, operational amplifier 5G, and filter in turn, and the host power amplifier is connected to the host speaker set in the control room.

[0008] There is a volume switch control between the filter and the host amplifier.

[0009] The microphone 8G is connected to the connection amplifier through the operational amplifier 9G in turn, and then connected to the air ducts of each air duct earphone through a multi-channel.

[0010] A volume switching control is provided between the operational amplifier 9G and the connected power amplifier.

[0011] The sound collector of any air duct headset in the scanning room is connected to the microphone 3G through the air duct through the microphone multi-channel, and is connected to the operational amplifier 5G through the noise reduction module, and then through the filter, it is connected to the power amplifier and the air duct headset respectively, and then through the filter connection multi-channel.

[0012] The beneficial effects of the present invention are as follows: it can not only realize the two-way transmission of voice information between the control room and the scanning room of the nuclear magnetic resonance, but also realize the voice calls between the doctors and nurses in the scanning room and the voice calls between the doctors and nurses and the control room, and it can also greatly reduce the noise of the voice information received in the control room and the scanning room, thereby improving the voice transmission quality and the function of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram showing the communication between the three people in the scanning room and the control room;

[0014] Figure 2 is a schematic diagram showing the structure of an air duct earphone and a sound collector;

[0015] Figure 3 It is a schematic diagram showing the noise reduction by two electroacoustic conversions;

[0016] Figure 4 It is a structural schematic diagram of Example 2. DETAILED DESCRIPTION

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0018] Embodiment: A nuclear magnetic resonance communication system, the host 14G microphone 8G can communicate with three air duct earphones 1.1, 1.2, 1.3 in the scanning room:

[0019] The three air duct earphones 1.1, 1.2, and 1.3 in the scanning room can communicate with each other by voice;

[0020] The scanning room earphones 1.1, 1.2, 1.3 talk to the control room host 14G: the air duct of any earphone in the scanning room is connected to the microphone multi-channel 2G and then connected to the microphone 3G and then connected to the noise reduction module 4G and then connected to the operational amplifier 5G through the filter 13G and then connected to the volume switch control 10G and then connected to the host amplifier 6G, and then connected to the host speaker 7G for the control room to listen;

[0021] The control room host 14G communicates with the scanning room headphones 1.1, 1.2, and 1.3: the host microphone 8G is connected to the operational amplifier 9G connected to the volume switch control 10G connected to the power amplifier 11.1 and then connected to the multi-channel 15G and then connected to the air ducts 1.1G, 1.2G, and 1.3G of the headphones 1.1, 1.2, and 1.3 for the headphones to listen;

[0022] The scanning room headphones 1.1, 1.2, and 1.3 communicate with each other: the sound collector 4D of the air duct microphone of any of the scanning room headphones is connected to the microphone multi-channel 2G through the air duct, and then connected to the microphone 3G through the noise reduction module 4G to the operational amplifier 5G, and then through the filter 13G through the power amplifier 11.2, 11.3 and then through the filter 13G to the multi-channel 15G and then connected to the air duct for the headphones to listen.

[0023] This embodiment enables communication between three people in the scanning room and the control room.

[0024] If there are more than three people in the control room, increase the number of people who need to be called. Figure 2 The air duct earphones can be made by connecting the sound collector duct of the air duct and the duct for listening to the sound of the speaker in parallel to the earphones corresponding to the existing three air ducts.

[0025] The structure of the part of the communication system entering the scanning area is made of non-magnetic, non-passive and non-metallic materials, and passive signals enter the scanning area.

[0026] Multi-channel 15G installed speaker connection: Figure 1 The two speakers connected to 11.2 and 11.3 are connected in parallel to provide sound to the three air duct headphones, plus the speakers connected to 11.1, so Figure 1 A total of three speakers are installed in the multi-channel. Figure 4A total of two speakers are installed in the multi-channel 15G, which are connected to the 11.1 and 11.2 circuits respectively, delivering sound to multiple air-conducting headphones. Figure 1 and Figure 4 The speakers are connected to the air duct of the air duct earphones in accordance with Figure 3 As shown: the sound outlet of the speaker is connected to the large end of each sound wave concentrator, the air duct is connected to the small end of the sound wave concentrator and each connection is sealed.

[0027] All information between the control room and the scanning room of the communication system of the present application can also be transmitted by wireless transmission and reception.

[0028] Example 1

[0029] The noise reduction module 4G is integrated with the amplifier circuit to achieve the functions of noise reduction and amplification in one module.

[0030] Example 2

[0031] One power amplifier is used, which is directly connected to the multi-channel 15G via the filter 13G through a single air duct, and multiple earphones can be connected via the multi-channel.

[0032] Air duct microphone headset Figure 2 As shown, the air duct microphone headset includes an earphone frame 1D, both sides of the earphone frame 1D are provided with voice output ports 2D, and any one side is provided with a sound collector 1 4D, the voice output ports 2D and the sound collector 4D are connected to the sound-to-electric conversion device through independent air ducts, the two voice output ports are connected to the air duct 1 5D and the air duct 2 3D respectively with the air duct 3 8D, the sound collector 4D is connected to the air duct 5 9D through the air duct 4 6D, and the air duct 3 8D and the air duct 5 9D are independent of each other and connected to the sound-to-electric conversion device. The sound collector 1 4D is provided with a diaphragm, the diaphragm is installed at the large end of the sound wave concentrator, the small end of the sound wave concentrator is connected to one end of the air duct 6D, the air duct 4 6D is installed on a transmission arm 25D that can be freely bent and adjusted, and the transmission arm 25D is made of plastic or other non-magnetic and non-metallic materials.

[0033] An air duct plug socket 10D is arranged in the middle of the air duct microphone headset, which can be fixed by plugging, and the air duct microphone headset can be replaced.

[0034] The receiving and transmitting device includes a first receiving channel and a first transmitting channel, and the sound-to-electric conversion device includes a second receiving channel and a second transmitting channel that are independent of each other. The first receiving channel and the second transmitting channel, as well as the first transmitting channel and the second receiving channel are connected respectively by air ducts.

[0035] The first receiving channel includes a microphone 5 18E with an amplifier port 17E, an amplifier circuit 16E and a speaker 2 15E which are connected in sequence;

[0036] The first voice transmission channel includes a speaker 3 12E with a sound wave concentrator 11E, an amplifier circuit 2 13E and a microphone 6 14E which are connected in sequence.

[0037] The second receiving channel includes a shielding box 6E, a speaker 45E with a sound wave concentrator 4E, an amplifier circuit 37E and a microphone 78E with an amplifier port 29E, which are connected in sequence in the shielding box 6E, wherein the microphone 78E is connected to the first sending channel through an air duct D10E, and the speaker 45E is connected to a jack 2E of the socket 27E through an air duct E3E;

[0038] Among them, the speaker 4 5E can be directly connected to multiple jacks 2 through multiple air ducts, realizing a one-to-many design.

[0039] The second transmitting channel includes a shielding box 20E, a speaker 5 22E with a sound wave concentrator 21E, an amplifier circuit 4 23E and a microphone 8 24E with an amplifier port 3 25E, which are connected in sequence inside the shielding box 20E, wherein the speaker 5 22E is connected to the first receiving channel through an air duct F19E, and the microphone 25E is connected to a jack 1E of the socket 27E through an air duct G26E.

[0040] The speaker 312E of the host in the control room is sent to the microphone 78E in the shielding box 16E through the air duct D10E by the sound wave concentrator 11E. An amplifier port 29E is arranged between the air duct D10E and the microphone 78E. The microphone 78E generates an electrical signal, which is amplified by the amplifier circuit 37E and sent to the speaker 45E to make a sound. The sound is sent to the socket 27E through the sound wave concentrator 14E and the air duct E3E, and then connected to the air duct earphone by the socket 27E for the patient to listen. The amplifier circuit and the speaker are all installed in the shielding box 16E.

[0041] The signal of the socket 27E of the air duct earphone is transmitted to the small microphone 8 24E through the air duct G26E and then through the amplifier port 3 25E. The microphone 8 24E sends the electrical signal to the amplifier circuit 4 23E for amplification and then sends it to the speaker 5 22E to make sound. The sound of the speaker 5 22E is sent to the small microphone 17E in the host computer in the control room through the sound wave concentrator 2 21E and then through the air duct F19E. The small microphone 17E is amplified by the amplifier circuit 1 16E and then sent to the speaker 2 15E for use in the control room.

[0042] The amplification circuit in the scanning room is powered by batteries. This method allows the control room and the shielding room to have a second amplification opportunity, and the amplification function is improved. The air duct can be set smaller.

[0043] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A nuclear magnetic resonance communication system, characterized in that: The invention comprises a host (14G) arranged in a control room and a plurality of air duct earphones arranged in a scanning room. The host (14G) is provided with a microphone (8G) and a speaker (7G) and can have voice calls with the plurality of air duct earphones in the scanning room, and the plurality of air duct earphones in the scanning room can have voice calls with each other.

2. A nuclear magnetic resonance communication system as claimed in claim 1, characterized in that: The air duct of any air duct headset in the scanning room is connected to the microphone (3G) through the microphone multi-channel (2G), and is connected to the host power amplifier (6G) through the noise reduction module (4G), the operational amplifier (5G), and the filter (13G) in turn. The host power amplifier (6G) is connected to the host speaker (7G) arranged in the control room.

3. A nuclear magnetic resonance communication system as claimed in claim 1, characterized in that: The microphone (8G) is connected to the connection amplifier (11.1) through the operational amplifier (9G) and the volume switch control (10G) in sequence, and then connected to the air ducts of each air duct headset through the multi-channel (15G).

4. A nuclear magnetic resonance communication system as claimed in claim 1, characterized in that: The sound collector (4D) of any air duct headset in the scanning room is connected to the microphone (3G) through the air duct via the microphone multi-channel (2G), and is connected to the operational amplifier (5G) through the noise reduction module (4G), and is then connected to the power amplifier (11.2) and (11.3) respectively through the filter (13G), and then is connected to the air duct headset through the multi-channel (15G) through the filter (13G).

5. A nuclear magnetic resonance communication system as claimed in claim 1, characterized in that: The sound collector (4D) of any air duct headset in the scanning room is connected to the microphone (3G) through the air duct via the microphone multi-channel (2G), and is connected to the filter (13G) through the noise reduction module (4G) (noise reduction module with amplifier), and then connected to the power amplifier (11). The power amplifier (11) is then connected to the multi-channel (15G) through a single air duct via the filter (13G), and then connected to the speakers of multiple air duct headsets via the multi-channel (15G), and emits sound to be listened to by the left and right earphones of the 2D air duct headset.

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