CN113782224A - Interactive device, nuclear magnetic resonance system and control method - Google Patents
Interactive device, nuclear magnetic resonance system and control method Download PDFInfo
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- G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
- G16H40/00—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices
- G16H40/60—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the operation of medical equipment or devices
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Abstract
The invention provides an interaction device, a nuclear magnetic resonance system and a control method, which are used for the nuclear magnetic resonance system. The interactive device comprises a first signal processing module, an interactive terminal module and a second signal processing module. The interactive terminal module is in communication connection with the first signal processing module, and the first signal processing module is in wired communication connection with the second signal processing module. The interactive terminal module receives first information of a patient and transmits the first information to the second signal processing module through the first signal processing module; the second signal processing module can transmit the received feedback information to the first signal processing module for presentation. The interaction device, the nuclear magnetic resonance system and the control method provided by the invention can enable the patient to communicate with the outside in time, and effectively relieve the anxiety of the patient; and the installation is simple, and the practicality is strong.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to an interaction device, a nuclear magnetic resonance system and a control method.
Background
Magnetic Resonance Imaging (MRI) examination is more and more widely applied because it is non-invasive to patients, and has the advantages of being capable of finding lesions at an early stage, exactly finding the size and range of the lesions, and having high accuracy of qualitative diagnosis. However, nuclear magnetic resonance examinations are relatively long compared to other in vitro diagnostic examinations. Meanwhile, due to the narrow bore diameter of the magnet, a large proportion of patients can have claustrophobia anxiety, the patients cannot get out of bed immediately before entering the magnet bore, so that the anxiety of the patients is aggravated, the examination is invalid or the image motion artifacts are caused, the scanned images cannot be diagnosed, or even the examination cannot be carried out or the normal examination is interrupted.
In order to alleviate or eliminate anxiety in patients to allow the detection to proceed normally, the following countermeasures are mainly available in the prior art:
1. the scanning speed is increased to complete the examination as quickly as possible. Obviously, the method has extremely high requirements on equipment and operators, and is difficult to popularize.
2. Drugs such as sedatives or anesthetics are used to eliminate or reduce anxiety in patients. Obviously, the use of sedatives or anesthetics not only causes unnecessary harm to the patient's body; moreover, it is not applicable to all patients, for example, to a prudent of a sedative or anesthetic such as a pregnant woman.
3. The virtual reality technology is adopted to disperse the attention of the patient and relieve the emotion. Unfortunately, virtual reality devices are not convenient enough to use and are not widely popularized.
Through continuous and intensive research, physiological factors are eliminated, the basic reason that a patient has claustrophobia and anxiety during nuclear magnetic resonance examination is that the patient cannot transmit information to the outside, and the technical schemes do not fundamentally solve the problem that the patient transmits information to the outside, so that the patient cannot communicate with the outside in time, the anxiety of the patient cannot be relieved in time, and the nuclear magnetic resonance examination method and the nuclear magnetic resonance examination device cannot be widely applied. Based on this, by means of the continuous development of medical instrument technology, an alarm ball device installed in a scanning room is provided in the prior art. When discomfort symptoms occur, the patient can press the alarm ball to give an alarm or interrupt scanning, so that the patient can transmit information to the outside. However, the alarm ball is a wired device and is inconvenient to use; the use method needs to be explained for the patient, and the workload is large; further, the warning ball hinders the patient to get on or off the bed, and the practicability is poor. Furthermore, because the magnetic resonance scanning noise is large, the operator is not necessarily unwilling to open the communication channel, so that the sound of the patient is difficult to effectively reach the operator, and the defect that the appeal of the patient cannot be timely communicated exists in the appearance.
Therefore, how to provide an interactive device to enable a patient to effectively transmit information to the outside in real time during a magnetic resonance examination becomes one of the technical problems to be solved by those skilled in the art.
It is noted that the information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The present invention aims to provide an interactive device, a nuclear magnetic resonance system and a control method for the nuclear magnetic resonance system, which are used for effectively transmitting information to the outside of a patient during scanning in real time and acquiring feedback information from the outside in real time, aiming at the above defects in the prior art.
In order to achieve the purpose, the invention is realized by the following technical scheme: an interaction device is used for a nuclear magnetic resonance system, the nuclear magnetic resonance system comprises a magnet cavity arranged in a scanning room, and the interaction device comprises an interaction terminal module, a first signal processing module and a second signal processing module;
the interactive terminal module is in communication connection with the first signal processing module, and the first signal processing module is in communication connection with the second signal processing module;
the interactive terminal module is configured to receive first information, identify the first information, and send the interactive information to the first signal processing module if the first information is identified as interactive information;
the first signal processing module is configured to send the interaction information to the second signal processing module after processing the interaction information according to a preset coding rule;
the second signal processing module is further configured to receive second information and send the second information to the first signal processing module.
Optionally, the interactive terminal module is further configured to send the scan stopping instruction to the first signal processing module if the first information is identified as a scan stopping instruction;
the first signal processing module is further configured to send the scan stopping instruction to the nuclear magnetic resonance system to implement interruption/termination of scanning.
Optionally, the interaction information comprises first sound information; the interactive terminal module comprises a first sound receiving unit, a first processor and a first transceiving unit;
the first sound receiving unit receives the first sound information and converts the first sound information into a first electric signal, and the first processor controls the first transceiver unit to send the first electric signal to the first signal processing module.
Optionally, the interaction information further includes a press alarm information; the interactive terminal module also comprises a shell with a concave part;
the concave part is configured to receive the pressing alarm information and convert the pressing alarm information into a second electric signal, and the first processor generates an alarm control signal according to the second electric signal;
the first processor controls the first transceiver unit to send the alarm control signal to the first signal processing module.
Optionally, the interactive terminal module further includes a first signal acquisition amplifying unit and a first sound processing unit;
the first signal acquisition and amplification unit is configured to amplify the first electric signal and convert the first electric signal into a first digital signal;
the first sound processing unit is configured to encode the first digital signal according to a preset sound identification rule to obtain inter-scanning sound information;
the first processor controls the first transceiver unit to send the inter-scanning sound information to the first signal processing module.
Optionally, the first sound processing unit is configured to:
acquiring inter-scanning noise information and inter-scanning voice information according to a preset noise and voice separation rule and the first digital signal;
according to a preset voice recognition rule, recognizing the inter-scanning voice information to obtain recognized inter-scanning voice information;
and coding the inter-scanning noise information and the identified inter-scanning voice information to obtain the inter-scanning voice information.
Optionally, the first signal processing module includes a second processor, a second transceiver unit, a second sound processing unit, and a first power amplifier unit;
the interactive terminal module is connected with the second transceiving unit;
the second transceiving unit is configured to receive the interaction information;
the second sound processing unit is configured to decode the interactive information to obtain decoded interactive information;
the second processor is configured to send the decoded interaction information to the second signal processing module through an optical fiber;
the second processor is further configured to send the received second information to the second sound processing unit;
the second sound processing unit is further configured to encode the second information, convert the second information into second sound information, and send the second sound information to the first power amplifier unit;
the first power amplification unit is configured to output the sound information of the second information according to the second sound information;
and/or the second signal processing module comprises: the second sound receiving unit, the second signal acquisition amplifying unit and the second power amplifier unit;
the second power amplifier unit is configured to output sound information of the interaction information;
the second sound receiving unit is configured to receive the second information and convert the second information into a third electric signal;
the second signal acquisition amplifying unit is configured to amplify the third electric signal and convert the third electric signal into a second digital signal;
the second signal processing module is further configured to transmit the second digital signal to the first signal processing module through an optical fiber.
Optionally, the interaction terminal module is in wireless communication connection with the first signal processing module, and the interaction terminal module is disposed on an inner wall of a magnet chamber of the nuclear magnetic resonance system, a hospital bed, and/or held by a patient.
In order to achieve the above object, the present invention further provides a nuclear magnetic resonance system, which includes any one of the interaction apparatuses described above.
In order to achieve the above object, the present invention further provides a control method of an interaction apparatus, where the interaction apparatus is used in a nuclear magnetic resonance system, and the interaction apparatus includes an interaction terminal module, a first signal processing module, and a second signal processing module; the control method comprises the following steps:
controlling an interactive terminal module to receive first information and identifying the first information; if the first information is identified to be interaction information, the interaction is sent to the first signal processing module;
the first signal processing module processes the interactive information according to a preset coding rule and then sends the interactive information to the second signal processing module;
and the second signal processing module receives second information and sends the second information to the first signal processing module.
Compared with the prior art, the interaction device, the nuclear magnetic resonance system and the control method provided by the invention have the following beneficial effects:
the interaction device provided by the invention improves the talkback and interaction device of the existing nuclear magnetic resonance system, and comprises an interaction terminal module, a first signal processing module and a second signal processing module, wherein the interaction terminal module is in communication connection with the first signal processing module. Therefore, the interactive terminal module can be movably installed, can be installed on the inner wall of the magnet, can also be installed on two sides of a sickbed, or can be held in the hand of a patient, and is simple to install and capable of being used in a plug-and-play mode. The interactive terminal module is configured to receive first information, identify the first information, and send the interactive information to the first signal processing module if the first information is identified as interactive information; the first signal processing module is configured to send the interaction information to the second signal processing module after processing the interaction information according to a preset coding rule; the second signal processing module is further configured to receive second information and send the second information to the first signal processing module. Therefore, the interactive device provided by the invention not only can timely transmit the interactive information of the patient to the operation room, but also can timely transmit the feedback information of the operator (doctor) positioned in the operation room to the scanning room. The patient can communicate with the outside in time, the anxiety of the patient is effectively relieved, and the practicability is high.
Furthermore, the shell of the terminal module of the interaction device provided by the invention is provided with the concave part which is designed as a concave button, so that the false triggering of a patient in the process of getting on and off a hospital bed can be avoided, and the safety is high.
Still further, the interactive device provided by the invention can automatically recognize voice information and can transmit the voice of the patient to the operation room after recognizing the voice of the patient.
In conclusion, the interactive device provided by the invention is convenient to install, can automatically identify the voice information of the patient, and can open the communication system or trigger emergency operation in time according to the voice content.
Drawings
Fig. 1 is a schematic system structure diagram of an interactive device according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a placement position of an interactive terminal module of the interactive apparatus according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an interactive terminal module of an interactive apparatus according to an embodiment of the present invention;
fig. 4 is an external schematic view of an interactive terminal module of the interactive apparatus according to an embodiment of the present invention;
fig. 5 is a schematic diagram illustrating a sound processing and recognition principle of an interactive terminal module of the interactive apparatus according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a first signal processing module of an interaction apparatus according to an embodiment of the present invention;
fig. 7 is a schematic diagram illustrating a sound processing principle of a first signal processing unit of the interactive apparatus according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a second signal processing module of the interaction apparatus according to an embodiment of the present invention;
FIG. 9 is a schematic diagram illustrating a flow of the control alarm information transmitted from the scanning room to the operation room according to an embodiment of the present invention;
wherein the reference numerals are as follows:
100-scanning room, 110a, 110 b-interactive terminal module, 111-battery unit, 112-first sound receiving unit, 113-first processor, 114-first transceiver unit, 115-shell, 115 a-recess, 116-first signal acquisition amplifying unit, 117-first sound processing unit;
120-a first signal processing module, 121-a second processor, 122-a second transceiver unit, 123-a second sound processing unit, 124-a first power amplifier unit, 124a, 213 a-a power amplifier, 124b, 213 b-a DAC, 124c, 213 c-a loudspeaker, 130-a magnetic cavity, 140-a hospital bed, 150-a patient;
200-an operating room, 210-a second signal processing module, 211-a second sound receiving unit, 212-a second signal acquisition and amplification unit, 213-a second power amplification unit and 220-a magnetic resonance scanning control system.
Detailed Description
To make the objects, advantages and features of the present invention more apparent, the interactive apparatus, the nuclear magnetic resonance system and the control method according to the present invention are further described in detail with reference to the accompanying drawings. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention. It should be understood that the drawings are not necessarily to scale, showing the particular construction of the invention, and that illustrative features in the drawings, which are used to illustrate certain principles of the invention, may also be somewhat simplified. Specific design features of the invention disclosed herein, including, for example, specific dimensions, orientations, locations, and configurations, will be determined in part by the particular intended application and use environment. In the embodiments described below, the same reference numerals are used in common between different drawings to denote the same portions or portions having the same functions, and a repetitive description thereof will be omitted. In this specification, like reference numerals and letters are used to designate like items, and therefore, once an item is defined in one drawing, further discussion thereof is not required in subsequent drawings.
These terms, as used herein, are interchangeable where appropriate. These terms, as used herein, are interchangeable where appropriate. Similarly, if the method described herein comprises a series of steps, the order in which these steps are presented herein is not necessarily the only order in which these steps may be performed, and some of the described steps may be omitted and/or some other steps not described herein may be added to the method.
The present example provides an interaction device for use in a nuclear magnetic resonance system. Referring to fig. 1, fig. 1 is a schematic system structure diagram of an interaction device according to an embodiment of the present invention. The nmr system includes a magnet bore 130 disposed between scans. The interactive apparatus includes an interactive terminal module 110, a first signal processing module 120, and a second signal processing module 210. The interactive terminal module 110 is communicatively connected to the first signal processing module 120, and the first signal processing module 120 is communicatively connected to the second signal processing module 210. Wherein the interactive terminal module 110 is preferably in wireless communication connection with the first signal processing module 120; the first signal processing module 120 and the second signal processing module 210 are preferably connected in wired communication.
The interactive terminal module 110 is configured to receive first information, identify the first information, and send the interaction information to the first signal processing module 120 if the first information is identified as the interaction information; the first signal processing module 120 is configured to process the interaction information according to a preset encoding rule and then send the processed interaction information to the second signal processing module 210.
Further, the second signal processing module 210 is further configured to receive second information and send the second information to the first signal processing module 120.
Preferably, the interaction terminal module 110 and the first signal processing module 120 are disposed relative to a proximal end of the magnet bore 130; the second signal processing module 210 is disposed relative to a distal end of the magnet bore 130. For example, in one embodiment, the interactive terminal module 110 and the first signal processing module 120 are both disposed in the scanning booth 100, and the second signal processing module 210 is disposed in the operating booth 200. Still further, the interaction terminal module 110 is disposed in the magnet chamber 130, and the first signal processing module 120 is disposed outside the magnet chamber 130.
With such configuration, in the interactive device provided by the present invention, the interactive terminal module 110 disposed in the scanning room is in communication connection with the first signal processing module 120, the first signal processing module 120 is in wired communication connection with the second signal processing module 210 disposed in the operating room, and the interactive terminal module 110 is simple to install and convenient for the patient to use; not only the alarm information of the patient 150 but also the feedback information of the operator (doctor) located in the operating room can be transmitted to the scanning room in time. So that the patient 150 can communicate with the outside in time, the anxiety of the patient 150 is effectively relieved, and the practicability is strong.
Further, there are one or more of the interactive terminal modules 110, and the interactive terminal modules 110 are connected with the first signal processing module 120 in a wireless communication manner. Referring to fig. 2, fig. 2 is a schematic diagram of a placement position of an interaction terminal module of an interaction apparatus according to an embodiment of the present invention. As can be seen from fig. 2, the interaction terminal module 110 may be disposed on an inner wall including, but not limited to, the magnet bore 130, on a patient bed 140, and/or held by a patient 150. Such as the interactive terminal module 110a disposed on the inner wall of the magnet chamber 130 or the interactive terminal module 110b disposed on the patient bed 140 near the patient's 150 hands. I.e. either on the inner wall of the magnetic chamber 130 or on both sides of the patient bed 140, or with the patient 150 in his or her hand. Therefore, the interactive terminal module 110 is simple to install, plug and play, and can be installed movably, so that the emergency situation of the patient 150 can be conveniently used, and the patient 150 can be helped to relieve the anxiety.
Further, the interactive terminal module 110 is made of a non-magnetic and/or weakly magnetic material. So configured, when the nuclear magnetic resonance system performs scanning, since the interaction terminal module 110 located in the magnetic cavity 130 is made of a non-magnetic and/or weakly magnetic material, the quality of the scanned image is not affected.
Preferably, in a preferred embodiment, the interaction terminal module 110 includes a battery unit 111, and referring to fig. 3 and fig. 5 in conjunction with fig. 1, where fig. 3 is a schematic structural diagram of an interaction terminal module of an interaction apparatus provided in an embodiment of the present invention, and fig. 5 is a schematic structural diagram of a first signal processing module of an interaction apparatus provided in an embodiment of the present invention. The battery unit 111 is used for supplying power to the interactive terminal module 110. The interactive terminal module 110 is powered by the battery unit 111 of the interactive terminal module, an external power supply is not needed, the power supply line problem of the interactive terminal module 110 does not need to be considered due to the configuration, an operator does not need to additionally install a wiring when the interactive terminal module is used, the interactive terminal module 110 can be moved (carried about) along with a patient, the time for installing and wiring by an operator can be saved, the labor intensity is reduced, and the practicability is high. Further, the first signal processing module 120 may be configured to be connected to an external power source (not shown in the figure) for supplying power to the first signal processing module 120. The power supply mode of the external power supply is adopted, and the first signal processing module 120 fixedly installed in the scanning room 100 can be continuously and stably supplied with power. And the wiring lines of the first signal processing module 120 and the second signal processing module 210 for realizing wired communication connection can be reasonably arranged according to actual needs.
Preferably, in one exemplary embodiment, the interactive terminal module 110 is further configured to send the scan stopping instruction to the first signal processing module 120 if the first information is identified as the scan stopping instruction; the first signal processing module 120 is further configured to send the stop scan instruction to the nuclear magnetic resonance system to implement interruption/termination of scanning. So configured, the interactive device provided by the invention can interrupt/terminate scanning operation by the patient in time, so as to obtain the real condition of the patient in real time and protect the patient to the maximum extent.
Preferably, in one preferred embodiment, the first information includes first sound information; the interactive terminal module 110 includes a first sound receiving unit 112, a first processor 113, and a first transceiving unit 114. Specifically, the first transceiver unit 114 is communicatively connected to the first signal processing module 120. Further, the first sound receiving unit 112 receives the first sound information and converts the first sound information into a first electrical signal, and the first processor 113 controls the first transceiver 114 to send the first electrical signal to the first signal processing module 120.
As will be appreciated by those skilled in the art, the first sound receiving unit 112 may be a microphone, or the like. The first audible information includes any verbal information uttered by the patient, such as "good heat", "how long it is going to end", "I want to go out", "Do you", and so forth.
Further, in yet another exemplary embodiment, the interaction information further includes a press alert information. Referring to fig. 4, fig. 4 is an appearance schematic diagram of an interaction terminal module of the interaction apparatus according to an embodiment of the present invention. As can be seen from fig. 4, the interactive terminal module 110 further includes a housing 115 having a recess 115a, and the first sound receiving unit 112, the first processor 113 and the first transceiver unit 114 are located in the housing 115. Preferably, the housing 115 may be marked with a prompt message, such as "SOS call for help", "press if necessary", etc. to prompt the patient 150 to seek help when needed. So dispose, depressed part 115a is the design of sunken type button, uses sunken design, avoids patient 150 to trigger by mistake at the sick bed in-process about, and the security is high. The shell 115 of the interactive terminal module 110 provided by the invention is provided with prompting information, the button design is simple and easy to understand, the patient can understand the purpose without the teaching of an operator (such as a doctor), the additional introduction and operation steps of the operator are saved, the time is saved, and the labor intensity is reduced.
Specifically, the recess 115a is configured to receive the press alarm information and convert it into a second electrical signal, and the first processor 113 generates an alarm control signal according to the second electrical signal; the first processor 113 controls the first transceiver 114 to send the alarm control signal to the first signal processing module 120; the first signal processing module 120 is further configured to send a scan stopping instruction to the nuclear magnetic resonance system according to the alarm control information, so as to implement interruption/termination of scanning.
With continued reference to fig. 1, preferably, in one exemplary embodiment, the nuclear magnetic resonance system further comprises a magnetic resonance scan control system 220 disposed between the operations; the first signal processing module 120 is connected to the magnetic resonance scanning control system 220 in a wired communication manner; the first signal processing module 120 is further configured to send a stop scan instruction to the magnetic resonance scan control system 220 to implement an interrupt/terminate scan.
Specifically, in one embodiment, when the patient 150 presses the recess 115a of the alarm terminal module 110, a high-low level (pressing alarm information) is generated, the first processor 113 generates an alarm control signal after detecting the high-low level, and wirelessly transmits the alarm control signal to the first signal processing module 120 outside the magnetic cavity 130, and the first signal processing module 120 sends a scanning stopping instruction to the magnetic resonance scanning control system 220 according to the first electrical signal (obtained according to the first sound information) and/or the second electrical signal (obtained according to the pressing alarm information) according to a preset rule, so as to interrupt/terminate the scanning operation in real time, so as to obtain the real condition of the patient in real time, and protect the patient to the maximum extent. Wherein the preset rules include, but are not limited to: in one embodiment, if the first signal processing module 120 receives the first electrical signal, the scanning operation is interrupted; if the first signal processing module 120 receives the second electrical signal, the scanning operation is suspended; in another embodiment, if the first signal processing module 120 receives the first electrical signal or the second electrical signal, the scanning operation is interrupted; if the first signal processing module 120 receives the first electrical signal and the second electrical signal, the scanning operation is suspended. In practical application, the setting can be flexible according to needs, and the description is omitted.
With such a configuration, the first signal processing module 120 disposed in the scanning room 100 of the alarm device provided by the present invention provides a signal output function, and can perform handshaking with the nuclear magnetic resonance system to implement an emergency behavior of the triggering system. Further, the magnetic resonance scan control system 220 may present the received interactive information in a graphic and text manner.
In particular, with continued reference to fig. 3, in a preferred embodiment, the interactive terminal module 110 further includes a first signal collecting and amplifying unit 116 and a first sound processing unit 117. In particular, the amount of the solvent to be used,
the first signal acquisition amplifying unit 116 is configured to amplify the first electrical signal and convert the first electrical signal into a first digital signal;
the first sound processing unit 117 is configured to encode the first digital signal according to a preset sound identification rule, so as to obtain inter-scan sound information;
the first processor 113 controls the first transceiver 114 to transmit the inter-scan sound information to the first signal processing module 120.
Referring to fig. 5, a schematic diagram illustrating a principle of sound processing and recognition of a first sound processing unit of an interaction terminal module of an interaction apparatus according to an embodiment of the present invention is shown in fig. 5, in this embodiment, the first sound processing unit 117 is configured to:
and (3) voice recognition: acquiring inter-scanning noise information and inter-scanning voice information according to a preset noise and voice separation rule and the first digital signal;
and (3) voice recognition: and recognizing the inter-scanning voice information according to a preset voice recognition rule to obtain recognized inter-scanning voice information. Preferably, a key field phonetic database may be preset, and when the inter-scan voice information is in the key field phonetic database, the inter-scan voice information is recognized as a preset key field. For example, the inter-scan voice messages such as "please terminate the scan", "stay in the dead", etc. are recognized as "terminate the scan". If the identified inter-scanning voice message is a scanning stopping instruction, the scanning stopping instruction is sent to the first signal processing module 120 through the first transceiver unit 114, so that the scanning is terminated/interrupted in real time, and the patient is protected to the maximum extent.
And (3) voice coding: and coding the inter-scanning noise information and the identified inter-scanning voice information to obtain the inter-scanning voice information.
With the configuration, the interactive device provided by the invention can perform key field voice recognition, and key voice information can trigger system emergency operation in time according to actual conditions; or a conversation between the operator and the patient 150 is opened (a call path is opened), the condition of the patient is known in real time, the patient 150 is pacified, and the anxiety of the patient is relieved, so that the scanning operation is smoothly completed.
Referring to fig. 6, fig. 6 is a schematic structural diagram of a first signal processing module of an interaction apparatus according to an embodiment of the present invention. As can be seen from fig. 6, in this embodiment, the first signal processing module 120 includes a second processor 121, a second transceiver 122, a second sound processing unit 123, and a first power amplifier unit 124.
The interactive terminal module 110 is communicatively connected to the second transceiver unit 122. In one embodiment, the first transceiver unit 114 of the interactive terminal module 110 is communicatively connected, preferably wirelessly connected, with the second transceiver unit 122 of the first signal processing module 120.
Further, the second transceiving unit 122 is configured to receive the interaction information;
the second sound processing unit 123 is configured to decode the interactive information, and obtain decoded interactive information.
The second processor 121 is configured to send the decoded interaction information to the second signal processing module 210 through an optical fiber.
So configured, the present invention provides an interactive device capable of transmitting first information (including the first sound information and/or the pressing alarm information, wherein the first sound information includes interactive information, and/or terminating/interrupting scanning information) issued by the patient 150 in the scanning room 100 to the operating room 200 in real time, so that an operator in the operating room 200 can learn the state of the patient 150 in real time.
Still further, the second processor 121 is configured to send the received second information to the second sound processing unit 123;
the second sound processing unit 123 is configured to encode the second information, convert the second information into second sound information, and send the second sound information to the first power amplifier unit 124;
the first power amplifier unit 124 is configured to output the sound information of the second information according to the second sound information.
With such a configuration, the interactive device provided by the present invention can transmit the second information (including feedback information or soothing and guiding information) sent by the operator of the operating room 200 to the scanning room 100 in real time, so that the patient 150 in the scanning room 100 can relieve anxiety, and the information interaction between the scanning room 100 and the operating room 200 can be realized in a voice manner.
Preferably, in one exemplary embodiment, with continued reference to fig. 6, the first power amplifier unit 124 includes a power amplifier 124a, a DAC (digital-to-analog converter) 124b and a speaker 124 c. With such a configuration, in the interaction apparatus provided by the present invention, after the first power amplifier unit 124 of the first signal processing module 120 receives the second sound, the power amplifier 124a amplifies the audio signal, and the DAC 124b converts the audio signal into an analog signal (20k-200khz) and outputs the analog signal to the speaker 124b, so as to play the feedback information of the operator in the form of sound in the scanning room 100.
Preferably, referring to fig. 7, fig. 7 is a schematic view illustrating a sound processing principle of the first signal processing unit of the interaction apparatus according to an embodiment of the present invention. Specifically, the second sound processing unit 123 is configured to decode the interaction information to obtain decoded interaction information, and includes that the second sound processing unit 123 is configured to:
decoding the interactive information (namely the inter-scanning sound information) according to a preset decoding rule to obtain decoded noise information and decoded voice information;
according to a preset noise amplitude regulation rule, carrying out amplitude regulation on the decoded noise information to obtain regulated noise information;
carrying out amplitude adjustment on the decoded voice information according to a preset voice amplitude adjustment rule to obtain adjusted voice information;
and obtaining decoded interactive information according to the adjusted voice information and the adjusted noise information.
Aiming at the characteristic that the magnetic resonance noise is obviously larger than the voice, the interactive device provided by the invention can separate the voice and the noise, can independently adjust the volume of the voice or the noise, can only output a voice signal, and can also set the noise level, thereby realizing the adjustment of the volume of the magnetic resonance background noise, and facilitating the monitoring of the scanning condition of the scanning room 100 by an operator.
Referring to fig. 8, fig. 8 is a schematic structural diagram of a second signal processing module of the interaction apparatus according to an embodiment of the present invention. As can be seen from fig. 8, the second signal processing module 210 includes: a second sound receiving unit 211, a second signal collecting and amplifying unit 212, and a second power amplifier unit 213;
the second power amplifier unit 213 is configured to output the sound information of the decoded interactive information according to the decoded interactive information. Preferably, the second power amplifier unit 213 includes a power amplifier 213a, a DAC 213b, and a speaker 213 c. With such a configuration, in the interaction apparatus provided by the present invention, after the second power amplifier unit 213 of the second signal processing module 210 receives the decoded interaction information, the power amplifier 213a amplifies the audio signal, and the DAC 213b converts the audio signal into an analog signal, which is output to the speaker 213c, so as to play the sound of the patient 150 in the operating room 200.
Preferably, in one of the exemplary embodiments,
the second sound receiving unit 211 is configured to receive the second information and convert the second information into a third electrical signal. The second sound receiving unit 211 includes but is not limited to Mic, microphone, text-to-speech, and other devices.
The second signal acquisition and amplification unit 212 is configured to amplify the third electrical signal and convert the third electrical signal into a second digital signal;
the second signal processing module 210 is further configured to transmit the second digital signal to the first signal processing module 120 through an optical fiber.
Hereinafter, an exemplary manner of information interaction using the interaction apparatus provided by the present invention is as follows:
first, initial state
In order to shield unnecessary noise or protect patient privacy, the call path may be closed in an initial state: the second signal processing module 210 and the interactive terminal module 110 can control the speaker shift path to be closed, and the communication path between the operating room 200 and the scanning room 100 is closed; the operator can also operate the second signal processing module 210 or the magnetic resonance scan control system 220 to control the shielding and opening of the call path between the scan room 100 and the operation room 200.
Second, alarm signal workflow
1. The patient presses the recess 115a of the interactive terminal module 110 to generate a high/low level, and the first processor 113 generates a pressing alarm message (alarm control signal) after detecting the high/low level and wirelessly transmits the pressing alarm message to the first signal processing module 120.
2. After receiving the on/off control signal of the interactive information, the first signal processing module 120 opens a communication channel, and at the same time, controls the second sound processing unit 123 of the first signal processing module 120 to generate a digital signal, and transmits the digital signal to the second signal processing module 210 in the operating room 200 through an optical fiber, and the digital signal is input to the speaker 213c through the power amplifier 213a and the DAC 213b, so as to realize voice or generate an alarm sound. As will be appreciated by those skilled in the art, the present invention is not limited to a particular manner of opening/closing a call. For example, in one embodiment, if the patient presses the recess 115a of the interactive terminal module 120 for more than a certain period of time, the interactive terminal module 120 sends a high/low level to the first signal processing module 120, and the first signal processing module 120 sends a scan stop signal to the nmr system after detecting the high/low level, so as to implement the interruption/termination of the scan; meanwhile, the first signal processing module 120 sends a scanning termination alarm signal to the second signal processing module 210, and after receiving the signal, the second signal processing module 210 turns on the second power amplifier unit 213 to send an alarm sound to remind an operator; in other embodiments, similarly, if the patient issues "stop scan" or "stop" or the like, and the first signal processing module 120 detects that the patient needs to stop scanning according to the preset terminology, the signal for stopping scanning is sent to the nuclear magnetic resonance system to implement the interruption/stop scanning; meanwhile, the first signal processing module 120 sends a scanning termination alarm signal to the second signal processing module 210, and after receiving the signal, the second signal processing module 210 turns on the second power amplifier unit 213 to send out the voice of the patient, so as to inform the patient of the requirement and the real situation.
Three, speech signal workflow
1. From bay 200 to scan bay 100
The second sound receiving unit 211 (microphone) of the second signal processing unit 210 of the operating room 200 converts the operator's sound signal into an electric signal, which is converted into a digital signal by the second signal collecting and amplifying unit 212, and transmitted to the first signal processing unit 120 through an optical fiber.
After receiving the digital signal, the second processor 121 of the first signal processing unit 120 controls the second sound processing unit 123 to generate audio digital data, and the audio digital data is transmitted to the first power amplifier unit 124 outside the magnet through the optical fiber, and the audio digital data is amplified and converted into an analog signal (20k-200khz) to be output to the loudspeaker 124c, so as to generate the sound of the operator.
2. From scan bay 100 to op bay 200
The first sound receiving unit 112 (such as Mic) of the interactive terminal module 110 converts the patient sound signal into an electrical signal in real time, the first signal collecting and amplifying unit 116 amplifies the electrical signal and then performs analog-to-digital conversion, the first sound processing unit 117 encodes the audio data to generate audio data, and if the audio data is recognized as voice information, the audio data is transmitted to the first signal processing unit 120 through wireless transmission to open a call path.
After the first signal processing unit 120 receives the received audio data, the second sound processing unit 123 decodes the received audio data to generate an audio digital signal.
The second processor 121 transmits the audio digital signal to the second signal processing module 210 in the operation room through an optical fiber, generates an audio analog signal (20k-200khz) through digital-to-analog conversion, and inputs the audio analog signal to the loudspeaker 213c after being amplified by the power amplifier 213 a. In particular, in an implementation, the second signal processing module 210 may be a separate sound input/output platform, or may be integrated into the magnetic resonance scanning control system 220, which is not limited in the present invention.
Further, it is to be understood that the present invention does not limit how to open the call path, and in one embodiment, if the first sound processing unit 117 decodes and recognizes "good heat", "i want to go out", "do there", a stop signal is transmitted to the first processor 113, and the first signal processing module 120 uploads the alarm signal to the magnetic resonance scanning control system for emergency processing, such as displaying an alarm message or stopping scanning. In another embodiment, if the first sound processing unit 117 decodes and recognizes "want to speak", "check how long it is, etc., a call path is opened; in other embodiments, if the first sound processing unit 117 decodes and recognizes "no call required", "close", etc., the call path is closed.
It should be noted that the systems and methods disclosed in the embodiments herein may be implemented in other ways. The apparatus embodiments described above are merely illustrative, and for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments herein. In this regard, each block in the flowchart or block diagrams may represent a module, a program, or a portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, the functional modules in the embodiments herein may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Yet another embodiment of the present invention further provides a nuclear magnetic resonance system, which includes any one of the above interaction apparatuses.
Because the nuclear magnetic resonance system provided by the invention and the interaction device provided by the invention belong to the same inventive concept, the nuclear magnetic resonance system and the interaction device at least have the same beneficial effects, and are not repeated.
Based on the same inventive concept, another embodiment of the present invention further provides a control method of an interactive apparatus, where the interactive apparatus is used in a nuclear magnetic resonance system. Specifically, the interaction device comprises an interaction terminal module, a first signal processing module and a second signal processing module. The control method of the interaction device comprises the following steps:
s1: and transmitting control alarm information from the scanning room to the operation room.
S2: control feedback information is communicated from the operator room to the scan room.
It is to be understood that the present invention is not limited to the execution sequence of steps S1 and S2, and in some cases, step S2 is executed after step S1; in yet other cases, S2 is executed first and then S1 is executed; in even other cases, steps S1 and S2 are performed simultaneously, whether the call/message exchange is initiated by the operator of the suite or by the patient of the scan suite.
Specifically, referring to fig. 9, fig. 9 is a schematic flowchart illustrating a flow of the control alarm information transmitted from the scanning room to the operation room according to an embodiment of the present invention, and as can be seen from fig. 9, in step S1, the transmitting of the control alarm information from the scanning room to the operation room includes the following steps:
s11: the interactive terminal module receives first information and identifies the first information; if the first information is identified to be interactive information, the interactive information is sent to the first signal processing module;
s12: and the first signal processing module processes the interactive information according to a preset coding rule and then sends the interactive information to the second signal processing module.
Specifically, in step S2, the transmitting the control feedback information from the operation room to the scanning room includes the following steps:
and the second signal processing module receives second information and sends the second information to the first signal processing module. .
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
In summary, the above embodiments have described in detail various configurations of the interaction device, the nmr system and the control method provided by the present invention, and it is understood that the above description is only a description of the preferred embodiment of the present invention, and does not limit the scope of the present invention in any way.
Claims (10)
1. An interactive device is used for a nuclear magnetic resonance system and is characterized by comprising an interactive terminal module, a first signal processing module and a second signal processing module;
the interactive terminal module is in communication connection with the first signal processing module, and the first signal processing module is in communication connection with the second signal processing module;
the interactive terminal module is configured to receive first information, identify the first information, and send the interactive information to the first signal processing module if the first information is identified as interactive information;
the first signal processing module is configured to send the interaction information to the second signal processing module after processing the interaction information according to a preset coding rule;
the second signal processing module is further configured to receive second information and send the second information to the first signal processing module.
2. The interaction device according to claim 1, wherein the interaction terminal module is further configured to send the scan stopping instruction to the first signal processing module if the first information is identified as a scan stopping instruction;
the first signal processing module is further configured to send the scan stopping instruction to the nuclear magnetic resonance system to implement interruption/termination of scanning.
3. The interaction apparatus according to claim 1, wherein the interaction information includes first sound information; the interactive terminal module comprises a first sound receiving unit, a first processor and a first transceiving unit;
the first sound receiving unit receives the first sound information and converts the first sound information into a first electric signal, and the first processor controls the first transceiver unit to send the first electric signal to the first signal processing module.
4. The interaction device of claim 3, wherein the interaction information further comprises a press alert message; the interactive terminal module also comprises a shell with a concave part;
the concave part is configured to receive the pressing alarm information and convert the pressing alarm information into a second electric signal, and the first processor generates an alarm control signal according to the second electric signal;
the first processor controls the first transceiver unit to send the alarm control signal to the first signal processing module.
5. The interaction device according to claim 3, wherein the interaction terminal module further comprises a first signal acquisition and amplification unit and a first sound processing unit;
the first signal acquisition and amplification unit is configured to amplify the first electric signal and convert the first electric signal into a first digital signal;
the first sound processing unit is configured to encode the first digital signal according to a preset sound identification rule to obtain inter-scanning sound information;
the first processor controls the first transceiver unit to send the inter-scanning sound information to the first signal processing module.
6. The interaction device of claim 5, wherein the first sound processing unit is configured to:
acquiring inter-scanning noise information and inter-scanning voice information according to a preset noise and voice separation rule and the first digital signal;
according to a preset voice recognition rule, recognizing the inter-scanning voice information to obtain recognized inter-scanning voice information;
and coding the inter-scanning noise information and the identified inter-scanning voice information to obtain the inter-scanning voice information.
7. The interactive device of claim 1, wherein the first signal processing module comprises a second processor, a second transceiver unit, a second sound processing unit and a first power amplifier unit;
the interactive terminal module is connected with the second transceiving unit;
the second transceiving unit is configured to receive the interaction information;
the second sound processing unit is configured to decode the interactive information to obtain decoded interactive information;
the second processor is configured to send the decoded interaction information to the second signal processing module through an optical fiber;
the second processor is further configured to send the received second information to the second sound processing unit;
the second sound processing unit is further configured to encode the second information, convert the second information into second sound information, and send the second sound information to the first power amplifier unit;
the first power amplification unit is configured to output the sound information of the second information according to the second sound information;
and/or the second signal processing module comprises: the second sound receiving unit, the second signal acquisition amplifying unit and the second power amplifier unit;
the second power amplifier unit is configured to output sound information of the interaction information;
the second sound receiving unit is configured to receive the second information and convert the second information into a third electric signal;
the second signal acquisition amplifying unit is configured to amplify the third electric signal and convert the third electric signal into a second digital signal;
the second signal processing module is further configured to transmit the second digital signal to the first signal processing module through an optical fiber.
8. The interaction device according to any one of claims 1 to 7, wherein the interaction terminal module is in wireless communication connection with the first signal processing module, and the interaction terminal module is disposed on an inner wall of a magnet chamber of the NMR system, on a patient bed, and/or held by a patient.
9. A nuclear magnetic resonance system comprising the interaction device of any one of claims 1-8.
10. The control method of the interaction device is characterized in that the interaction device comprises an interaction terminal module, a first signal processing module and a second signal processing module; the control method comprises the following steps:
the interactive terminal module receives first information and identifies the first information; if the first information is identified to be interactive information, the interactive information is sent to the first signal processing module;
the first signal processing module processes the interactive information according to a preset coding rule and then sends the interactive information to the second signal processing module;
and the second signal processing module receives second information and sends the second information to the first signal processing module.
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