CN110652314B - Ultrasonic apparatus and ultrasonic system - Google Patents
Ultrasonic apparatus and ultrasonic system Download PDFInfo
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- CN110652314B CN110652314B CN201910964770.0A CN201910964770A CN110652314B CN 110652314 B CN110652314 B CN 110652314B CN 201910964770 A CN201910964770 A CN 201910964770A CN 110652314 B CN110652314 B CN 110652314B
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Abstract
The invention discloses ultrasonic equipment and an ultrasonic system, wherein the equipment comprises a power supply module, a coupling circuit, an acoustic power test signal module, a power supply interface and an ultrasonic hardware module; one end of the power supply module is connected with the ultrasonic hardware module, and the other end of the power supply module is connected with the power supply interface; one end of the coupling circuit is connected with the acoustic power test signal module, and the other end of the coupling circuit is connected with the power interface. Compared with the prior art, the ultrasonic equipment of the invention leads out the APM-Trig signal through the power interface by adding the coupling circuit, thereby not needing to add an additional interface to the equipment and simplifying the design of the equipment.
Description
Technical Field
The invention relates to the technical field of ultrasonic diagnosis, in particular to ultrasonic equipment and an ultrasonic system.
Background
The sound power is a physical quantity of the relation of total energy of a sound field, and since the ultrasonic equipment is used for device detection of a human body, regulations stipulate that the single sound power and the accumulated sound power of the ultrasonic equipment must be controlled within an acceptable range of the human body, so that the sound power test in an ultrasonic system is an indispensable test.
During testing, the ultrasonic equipment is connected with the testing equipment, a tester controls the ultrasonic equipment to select a certain working mode, then a corresponding sound power testing signal (hereinafter, referred to as APM _ Trig) interface outputs a Trig signal in the mode, and the sound power testing equipment starts to acquire the energy of a sound field and performs sound power testing according to the moment when the APM _ Trig signal is received.
Therefore, when performing the acoustic power test, it is necessary to extract such an interface for outputting the APM _ Trig signal from the ultrasonic device. For large-scale ultrasonic equipment, the design of the whole machine is not greatly influenced by more leading out a signal interface. However, for portable or handheld ultrasound, one more interface is introduced, which may affect the waterproof, heat dissipation, appearance, etc. of the device.
Disclosure of Invention
The invention aims to provide an ultrasonic device and an ultrasonic system.
To achieve one of the above objects, an embodiment of the present invention provides an ultrasound apparatus, characterized in that: the device comprises a power supply module, a coupling circuit, an acoustic power test signal module, a power supply interface and an ultrasonic hardware module;
one end of the power supply module is connected with the ultrasonic hardware module, and the other end of the power supply module is connected with the power supply interface;
one end of the coupling circuit is connected with the acoustic power test signal module, and the other end of the coupling circuit is connected with the power interface.
As a further improvement of an embodiment of the present invention, the coupling circuit includes a field-effect transistor and an RC oscillating circuit, the acoustic power test signal module is connected to a gate of the field-effect transistor, a source of the field-effect transistor is grounded, and a drain of the field-effect transistor is connected to the power interface by connecting the RC oscillating circuit in series.
As a further improvement of the embodiment of the present invention, a grounded filter capacitor is connected in parallel between one end of the power module connected to the power interface and one end of the coupling circuit connected to the power interface.
As a further improvement of an embodiment of the present invention, the ultrasound hardware module includes an ultrasound front-end signal acquisition module, a high-voltage switch, and a transmit-receive switch.
To achieve one of the above objects, an embodiment of the present invention provides an ultrasound system, characterized in that: the system comprises an ultrasonic device and a power connector;
the ultrasonic equipment comprises a power supply module, a coupling circuit, an acoustic power test signal module and a power supply interface; one end of the power supply module is connected with the power supply interface; one end of the coupling circuit is connected with the acoustic power test signal module, and the other end of the coupling circuit is connected with the power supply interface;
the power connector comprises a voltage output end and a signal output end, the voltage output end is connected with a power interface of the ultrasonic equipment and then can provide input voltage for the ultrasonic equipment, and the signal output end is connected with the voltage output end.
As a further improvement of the embodiment of the present invention, the power connector further includes a signal restoring circuit, one end of the signal restoring circuit is connected to the voltage output terminal, and the other end of the signal restoring circuit is connected to the signal output terminal.
As a further improvement of an embodiment of the present invention, the coupling circuit includes a field-effect transistor and an RC oscillating circuit, the acoustic power test signal module is connected to a gate of the field-effect transistor, a source of the field-effect transistor is grounded, and a drain of the field-effect transistor is connected to the power interface by connecting the RC oscillating circuit in series;
the signal reduction circuit comprises an amplifier, a coupling capacitor and a comparator, wherein the voltage output end is connected with the reverse input end of the amplifier, one end of the coupling capacitor is connected with the output end of the amplifier, the other end of the coupling capacitor is connected with the positive end of the comparator, the negative end of the comparator is connected with a fixed voltage, and the output end of the comparison amplifier is connected with the signal output end.
As a further improvement of an embodiment of the present invention, a grounded filter capacitor is connected in parallel between one end of the power module of the ultrasound apparatus, which is connected to the power interface, and one end of the coupling circuit, which is connected to the power interface.
As a further improvement of an embodiment of the present invention, the ultrasound device further includes an ultrasound hardware module, the ultrasound hardware module is connected to the power module, and the ultrasound hardware module includes an ultrasound front-end signal acquisition module, a high-voltage switch, and a transceiver switch.
As a further improvement of an embodiment of the present invention, the system further includes a signal restoring device, and the signal output end of the power connector can be connected to the signal restoring device.
Compared with the prior art, the ultrasonic equipment of the invention leads out the APM-Trig signal through the power interface by adding the coupling circuit, thereby not needing to add an additional interface to the equipment and simplifying the design of the equipment.
Drawings
Fig. 1 is a schematic view of a scan sequence of a typical ultrasound apparatus.
Fig. 2 is a schematic diagram of a connection framework of an ultrasonic device and an acoustic power testing device.
Figure 3 is a circuit diagram of an ultrasound system of the present invention.
Fig. 4 is a graph comparing the waveforms of the APM _ Trig signal and the Pulse train waveform signal.
Fig. 5 is a waveform diagram of the output of the amplifier N of the present invention.
Fig. 6 is a waveform diagram of an input terminal and an output terminal of the comparator LOCMP of the present invention.
Wherein, 1, ultrasonic equipment; 11. a power supply module; 12. a coupling circuit; 13. an acoustic power test signal module; 14. a power interface; 15. an ultrasound hardware module; 2. a power supply connector; 21. a voltage output terminal; 22. a signal output terminal; 23. and a signal restoring module.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to these embodiments are included in the scope of the present invention.
The ultrasonic apparatus is a detection device for a human body, and thus the individual acoustic power and the cumulative acoustic power of the ultrasonic apparatus must be controlled within a range acceptable to the human body.
The operation sequence of the ultrasonic apparatus is shown in fig. 1. The Freeze phase is indicated by the Freeze signal being high, the scanning phase of the ultrasonic equipment is indicated by the Freeze signal being low, the period of a Trig signal indicates the scanning of data of one line, and N line signals are combined to form an ultrasonic image. Generally, each line has its own configuration information parameters that are sent into the corresponding hardware during the high level of the Trig signal cycle, and during the low level of the Trig signal cycle, the low level period is divided into a transmit period and a receive period. In the transmitting period, the transmitting module of the ultrasonic equipment generates corresponding transmitting electric pulses, the electric signals are converted into sound field signals through the transducer, and the sound power testing equipment needs to acquire the sound field signals. Therefore, in the process of the acoustic power test, the Trig signal, which is an auxiliary signal of the generation time of the transmission pulse, must be led out through the interface and connected to the acoustic power test equipment, as shown in fig. 2. And is used to output the Trig signal in the set operation mode, and for the convenience of discussion herein, the signal is referred to as the APM _ Trig signal.
In order to extract the APM _ Trig signal without adding an additional interface to the ultrasound device, as shown in fig. 3, the present invention provides an ultrasound device 1, which includes a power supply module 11, a coupling circuit 12, an acoustic power test signal module 13, a power supply interface 14, and an ultrasound hardware module 15.
One end of the power module 11 is connected to the ultrasonic hardware module 15 and is configured to provide a required voltage or current for the ultrasonic hardware module 15, the other end of the power module 15 is connected to the power interface 14, and an external power source supplies power to the power module 15 through the power interface 14, so that the power interface may also be referred to as an input voltage end.
One end of the coupling circuit 12 is connected to the acoustic power test signal module 13, and the other end is connected to the power interface 14. The acoustic power test signal module 13 outputs an APM _ Trig signal, which is coupled to the power interface by the coupling circuit 12. Therefore, the APM-Trig signal is led out through the multiplexing power interface, so that an additional interface does not need to be added to the ultrasonic equipment, and the design of the equipment is simplified.
In a preferred embodiment, the coupling circuit 12 includes a field effect transistor N and an RC oscillator circuit, the acoustic power test signal module 13 is connected to the gate G of the field effect transistor N, the source S of the field effect transistor N is grounded, and the drain D is connected to the power interface 14 by connecting the RC oscillator circuit in series. When no APM _ Trig signal is output (i.e., the APM _ Trig signal is output at a low level), the gate G of the fet N is at a low level, and the fet N is in an off state. At the moment, the power interface charges the RC oscillating circuit through the external power supply, so that the voltage at two ends of the capacitor of the RC oscillating circuit is equal to the input voltage of the external power supply.
When an APM _ Trig signal is input to the gate G of the fet N, the high level of the signal turns on the fet N, so that the voltage of the drain D is instantaneously pulled low. Due to the existence of the RC circuit, the capacitor of the RC circuit can be discharged at the moment, when the high level of the APM _ Trig signal is finished, the field-effect tube N is cut off again, and the power interface continues to charge the RC oscillating circuit through the external power supply. When the high level of the next APM _ Trig signal comes again, the above operation is repeated. Fig. 4 is a waveform comparison diagram of the APM _ Trig signal APM _ Trig input output by the acoustic power test signal module 13 and the Pulse count signal coupled to the power interface 14.
The APM _ Trig signal is a square wave signal, and the Pulse train signal is a downward glitch signal. The glitch signal is coupled to the power interface 14 (input power supply), and a filter capacitor C1 connected to ground is connected in parallel between the end of the power module 11 connected to the power interface 14 and the end of the coupling circuit 12 connected to the power interface 14, in order to prevent the glitch signal from affecting the power module 11.
Preferably, the ultrasound hardware module includes an ultrasound front-end signal acquisition module, a high-voltage switch, a transmit-receive switch, and the like, and the power module 11 is configured to provide a suitably stable power for the ultrasound hardware modules.
As shown in fig. 3, the present invention also provides an ultrasound system comprising an ultrasound device 1 and a power connector 2. The ultrasonic equipment comprises a power supply module 11, a coupling circuit 12, an acoustic power test signal module 13 and a power supply interface 14; one end of the power supply module 11 is connected with the power supply interface 14; one end of the coupling circuit 12 is connected to the acoustic power test signal module 13, and the other end is connected to the power interface 14. The acoustic power test signal module 13 outputs an APM _ Trig signal, which is coupled to the power interface by the coupling circuit 12. Therefore, the APM-Trig signal is led out through the multiplexing power interface, so that an additional interface does not need to be added to the ultrasonic equipment, and the design of the equipment is simplified.
The power connector 2 includes a voltage output terminal 21 and a signal output terminal 22, the voltage output terminal 22 is connected to the power interface 14 of the ultrasound apparatus and is capable of providing an input voltage to the ultrasound apparatus 1, and the signal output terminal 22 is connected to the voltage output terminal 21, so that the coupled APM _ Trig signal can be output from the signal output terminal.
According to the ultrasonic system, the APM _ Trig signal of the ultrasonic equipment is led out to the power connector through the power interface, so that the ultrasonic equipment can be subjected to the sound power test without adding an additional interface, and the design of the ultrasonic equipment is simplified.
In a preferred embodiment, the power connector 2 further includes a signal restoring circuit 23, one end of the signal restoring circuit 23 is connected to the voltage output terminal 21, the other end of the signal restoring circuit 23 is connected to the signal output terminal 22, and the signal output terminal 22 is connected to the voltage output terminal 21 through the signal restoring circuit 23. Thus, the coupled APM _ Trig signal is restored by the signal restoring circuit 23. Specifically, the coupling circuit 12 includes a field effect transistor VT and an RC oscillating circuit, the acoustic power test signal module 13 is connected to a gate G of the field effect transistor VT, a source S of the field effect transistor VT is grounded, and a drain D is connected to the power interface 14 by connecting the RC oscillating circuit in series. For specific circuit principles, reference may be made to the foregoing description, which is not repeated herein. At this time, the square wave signal (APM _ Trig signal) is coupled into a downward glitch signal (Pulse train signal) to the power interface.
The signal reduction circuit 23 comprises an amplifier N, a coupling capacitor C2 and a comparator LOCMP, the voltage output end 21 is connected to the inverting input end of the amplifier N, one end of the coupling capacitor C2 is connected to the output end of the amplifier N, the other end of the coupling capacitor C2 is connected to the positive end of the comparator LOCMP, the negative end of the comparator is connected to a fixed voltage, and the output end of the comparison amplifier LOCMP is connected to the signal output end 22. The Pulse couple signal passes through the voltage input terminal 21 and then is input to the inverting input terminal of the amplifier N, the waveform of the output signal is as shown in fig. 5, and then the signal is coupled to the positive terminal of the comparator LOCMP through the capacitor C2, and the negative terminal of the comparator LOCMP is connected with a fixed voltage, the potential of the fixed voltage is close to the low level of the waveform in fig. 5. The pulse waveform in fig. 5 outputs a high level after passing through the comparator LOCMP and outputs a low level at other times, so that the APM _ Trig signal can be restored and output. Finally, the restored output signal is sent to an acoustic power test device to meet the test requirement. Fig. 6 is a waveform diagram of the input terminal and the output terminal of the specific comparator LOCMP.
The APM _ Trig signal is a square wave signal, and the Pulse train signal is a downward glitch signal. The glitch signal is coupled to the power interface 14 (input power supply), and a filter capacitor C1 connected to ground is connected in parallel between the end of the power module 11 connected to the power interface 14 and the end of the coupling circuit 12 connected to the power interface 14, in order to prevent the glitch signal from affecting the power module 11.
Preferably, the ultrasound hardware module includes an ultrasound front-end signal acquisition module, a high-voltage switch, a transmit-receive switch, and the like, and the power module 11 is configured to provide a suitably stable power for the ultrasound hardware modules.
It should be noted that, the power connector may not be provided with a signal restoring circuit, and in this case, the system further includes a signal restoring device, and a signal output end of the power connector may be connected to the signal restoring device, so as to restore the coupled APM _ Trig signal through the signal restoring device. The specific circuit of the signal recovery device may refer to the signal recovery circuit 23 described above.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (9)
1. An ultrasound device, characterized by: the device comprises a power supply module, a coupling circuit, an acoustic power test signal module, a power supply interface and an ultrasonic hardware module;
one end of the power supply module is connected with the ultrasonic hardware module, and the other end of the power supply module is connected with the power supply interface;
one end of the coupling circuit is connected with the acoustic power test signal module, and the other end of the coupling circuit is connected with the power supply interface;
the coupling circuit comprises a field effect transistor and an RC oscillating circuit, the acoustic power test signal module is connected with a grid electrode of the field effect transistor, a source electrode of the field effect transistor is grounded, and a drain electrode of the field effect transistor is connected with the power interface through being connected with the RC oscillating circuit in series.
2. The ultrasound device of claim 1, wherein:
and a grounded filter capacitor is connected in parallel between one end of the power module connected with the power interface and one end of the coupling circuit connected with the power interface.
3. The ultrasound device of claim 1, wherein:
the ultrasonic hardware module comprises an ultrasonic front-end signal acquisition module, a high-voltage switch and a receiving-transmitting change-over switch.
4. An ultrasound system, characterized by: the system comprises an ultrasonic device and a power connector;
the ultrasonic equipment comprises a power supply module, a coupling circuit, an acoustic power test signal module and a power supply interface; one end of the power supply module is connected with the power supply interface; one end of the coupling circuit is connected with the acoustic power test signal module, and the other end of the coupling circuit is connected with the power supply interface;
the coupling circuit comprises a field effect transistor and an RC oscillating circuit, the acoustic power test signal module is connected with the grid electrode of the field effect transistor, the source electrode of the field effect transistor is grounded, and the drain electrode is connected with the power interface by being connected with the RC oscillating circuit in series;
the power connector comprises a voltage output end and a signal output end, the voltage output end is connected with a power interface of the ultrasonic equipment and then can provide input voltage for the ultrasonic equipment, and the signal output end is connected with the voltage output end.
5. The ultrasound system of claim 4, wherein:
the power connector further comprises a signal restoring circuit, one end of the signal restoring circuit is connected with the voltage output end, and the other end of the signal restoring circuit is connected with the signal output end.
6. The ultrasound system of claim 5, wherein:
the signal reduction circuit comprises an amplifier, a coupling capacitor and a comparator, wherein the voltage output end is connected with the reverse input end of the amplifier, one end of the coupling capacitor is connected with the output end of the amplifier, the other end of the coupling capacitor is connected with the positive end of the comparator, the negative end of the comparator is connected with a fixed voltage, and the output end of the comparator is connected with the signal output end.
7. The ultrasound system of claim 4, wherein:
and a grounded filter capacitor is connected in parallel between one end of the power supply module of the ultrasonic equipment, which is connected with the power supply interface, and one end of the coupling circuit, which is connected with the power supply interface.
8. The ultrasound system of claim 4, wherein:
the ultrasonic equipment further comprises an ultrasonic hardware module, the ultrasonic hardware module is connected with the power supply module, and the ultrasonic hardware module comprises an ultrasonic front-end signal acquisition module, a high-voltage switch and a transceiving change-over switch.
9. The ultrasound system of claim 4, wherein:
the system also comprises signal restoring equipment, and the signal output end of the power connector can be connected with the signal restoring equipment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910964770.0A CN110652314B (en) | 2019-10-11 | 2019-10-11 | Ultrasonic apparatus and ultrasonic system |
| PCT/CN2020/123478 WO2021068981A1 (en) | 2019-10-11 | 2020-10-24 | Ultrasonic device and ultrasonic system |
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| CN201910964770.0A CN110652314B (en) | 2019-10-11 | 2019-10-11 | Ultrasonic apparatus and ultrasonic system |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2750584Y (en) * | 2004-12-02 | 2006-01-04 | 上海贝豪通讯电子有限公司 | A three-in-one handset interface realizing functions of earphone, serial port, and charging |
| CN106025742A (en) * | 2016-07-29 | 2016-10-12 | 深圳市和昶科技有限公司 | Adapter applied to Type-C interface intelligent terminal and adaption method |
| CN106170250A (en) * | 2014-04-11 | 2016-11-30 | 皇家飞利浦有限公司 | For obtaining the device triggering signal from ultrasonic system |
| DE102015215141A1 (en) * | 2015-08-07 | 2017-02-09 | Siemens Healthcare Gmbh | Synchronization device and method for synchronizing an imaging device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7748901B2 (en) * | 2007-04-06 | 2010-07-06 | Unisyn Medical Technologies, Inc. | Universal x-ray test bed |
| CN101224326A (en) * | 2007-12-25 | 2008-07-23 | 吴晓歌 | Medical ultrasound water pad |
| CN101324649A (en) * | 2008-07-14 | 2008-12-17 | 瑞声声学科技(常州)有限公司 | Supersonic transducer power tester and test method thereof |
| US9588491B2 (en) * | 2012-05-14 | 2017-03-07 | University Of Washington Through Its Center For Commercialization | Portable acoustic holography systems for therapeutic ultrasound sources and associated devices and methods |
| CN205251572U (en) * | 2015-11-12 | 2016-05-25 | 朗昇科技（苏州）有限公司 | Intelligent movement ultrasonic detection terminal equipment |
| CN110584706B (en) * | 2019-10-11 | 2023-04-07 | 飞依诺科技股份有限公司 | Ultrasound system and ultrasound apparatus |
| CN110652314B (en) * | 2019-10-11 | 2022-01-07 | 飞依诺科技(苏州)有限公司 | Ultrasonic apparatus and ultrasonic system |
-
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2750584Y (en) * | 2004-12-02 | 2006-01-04 | 上海贝豪通讯电子有限公司 | A three-in-one handset interface realizing functions of earphone, serial port, and charging |
| CN106170250A (en) * | 2014-04-11 | 2016-11-30 | 皇家飞利浦有限公司 | For obtaining the device triggering signal from ultrasonic system |
| DE102015215141A1 (en) * | 2015-08-07 | 2017-02-09 | Siemens Healthcare Gmbh | Synchronization device and method for synchronizing an imaging device |
| CN106025742A (en) * | 2016-07-29 | 2016-10-12 | 深圳市和昶科技有限公司 | Adapter applied to Type-C interface intelligent terminal and adaption method |
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| CN110652314A (en) | 2020-01-07 |
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