Diasonograph and ultrasonic imaging method

Abstract

The invention discloses an ultrasonic diagnostic apparatus and an ultrasonic imaging method.The ultrasonic diagnostic apparatus comprises a control unit, a transmitting circuit, a probe, a receiving unit, a signal processing unit and a display unit, the transmitting circuit comprises a first transmitting path and a second transmitting path, and the control unit controls the first transmitting path to be switched on based on different working modes and controls the second transmitting path to be switched off based on different working modes; the second transmitting path is disconnected to enable the transmitting circuit to transmit a first transmitting signal, and / or the first transmitting path is controlled to be disconnected and the second transmitting path is controlled to be connected to enable the transmitting circuit to transmit a second transmitting signal; the probe generates sound waves based on the received emission signal and sends the sound waves to the object to be detected; and the receiving unit receives the echo signal of the object to be detected, and processes the echo signal through the signal processing unit to generate an ultrasonic image. According to the diasonograph, the two types of transmitting circuits are compatible, so that the requirements of all working modes of the diasonograph on the performance of the transmitting circuits are met, and the flexibility of the diasonograph is improved.

Description

Technical Field

[0001] The present invention relates to the field of ultrasonic technology, and in particular to an ultrasonic diagnostic instrument and an ultrasonic imaging method. Background Art

[0002] Ultrasonic diagnostic equipment can control the transmitting circuit to transmit transmitting signals with different waveform parameters according to different working modes. The transmitting circuit can be divided into pulse transmitting circuit and linear transmitting circuit according to the principle. Among them, the pulse transmitting circuit has high efficiency and the output transmitting signal current driving capability is large, but the output transmitting signal is affected by the power supply voltage. The waveform of the transmitting signal output by the linear transmitting circuit is flexible and controllable, but the working efficiency is low and the output transmitting signal current driving capability is small.

[0003] In the existing technology, since ultrasonic diagnostic instruments have multiple working modes and different working modes have different performance requirements for the transmitting circuit, and conventional ultrasonic diagnostic instruments only have a transmitting circuit based on one principle, it is difficult for existing ultrasonic diagnostic instruments to meet the performance requirements of the transmitting circuit in all working modes and have low flexibility. Summary of the Invention

[0004] The present invention provides an ultrasonic diagnostic instrument and an ultrasonic imaging method, which are used to solve the problem in the prior art that the ultrasonic diagnostic instrument has low flexibility and is difficult to meet the requirements of all working modes on the performance of the transmitting circuit.

[0005] In a first aspect, the present application provides an ultrasonic diagnostic apparatus, comprising: a control unit, a transmitting circuit, a probe, a receiving unit, a signal processing unit, and a display unit;

[0006] The transmitting circuit includes a first transmitting path and a second transmitting path;

[0007] The control unit is configured to, according to different operating modes, control the first transmitting path to be turned on and the second transmitting path to be turned off, so that the transmitting circuit transmits a first transmitting signal, and / or control the first transmitting path to be turned off and the second transmitting path to be turned on, so that the transmitting circuit transmits a second transmitting signal;

[0008] The probe is configured to generate a sound wave based on the received first transmission signal or the received second transmission signal, send the sound wave to the object to be detected, and receive an echo signal reflected by the object to be detected;

[0009] The receiving unit is configured to prevent the first transmission signal or the second transmission signal from being transmitted to the signal processing unit, and to transmit the echo signal to the signal processing unit;

[0010] The signal processing unit is configured to process the received echo signal to generate an ultrasonic image;

[0011] The display unit is used to display the ultrasound image.

[0012] In a possible implementation, the first transmitting path includes a first transmitting circuit and a first transmitting isolation circuit;

[0013] The first transmitting isolation circuit is connected between the first transmitting circuit and the probe, and is used to connect or disconnect the path between the first transmitting circuit and the probe under the control of the control unit;

[0014] The second transmitting path includes a second transmitting circuit and a second transmitting isolation circuit;

[0015] The second transmitting isolation circuit is connected between the second transmitting circuit and the probe, and is used to disconnect the path between the second transmitting circuit and the probe, or connect the path between the second transmitting circuit and the probe, under the control of the control unit.

[0016] In a possible implementation, the first transmission isolation circuit includes a first relay;

[0017] A first end of the first relay is electrically connected to the first transmitting circuit, a second end of the first relay is electrically connected to the probe, and a coil of the first relay is electrically connected to the control unit;

[0018] The second emission isolation circuit includes a second relay;

[0019] A first end of the second relay is electrically connected to the second transmitting circuit, a second end of the second relay is electrically connected to the probe, and a coil of the second relay is electrically connected to the control unit.

[0020] In a possible implementation, the first transmission isolation circuit includes a first high-voltage analog switch;

[0021] A first end of the first high-voltage analog switch is electrically connected to the first transmitting circuit, a second end of the first high-voltage analog switch is electrically connected to the probe, and a control end of the first high-voltage analog switch is electrically connected to the control unit;

[0022] The second emission isolation circuit includes a second high-voltage analog switch;

[0023] A first end of the second high-voltage analog switch is electrically connected to the second transmitting circuit, a second end of the second high-voltage analog switch is electrically connected to the probe, and a control end of the second high-voltage analog switch is electrically connected to the control unit.

[0024] In a possible implementation, the first receiving isolation circuit and the second receiving isolation circuit are further included;

[0025] The first receiving isolation circuit is connected between the first transmitting isolation circuit and the probe, and is used to prevent the echo signal from being transmitted to the first transmitting circuit;

[0026] The second receiving isolation circuit is connected between the second transmitting isolation circuit and the probe, and is used to prevent the echo signal from being transmitted to the second transmitting circuit.

[0027] In a possible implementation, the first receiving isolation circuit includes a first diode and a second diode;

[0028] The cathode of the first diode is electrically connected to the anode of the second diode and the first emission isolation circuit, and the anode of the first diode is electrically connected to the cathode of the second diode and the probe;

[0029] The second receiving isolation circuit includes a third diode and a fourth diode;

[0030] The cathode of the third diode is electrically connected to the anode of the fourth diode and the second emission isolation circuit, and the anode of the third diode is electrically connected to the cathode of the fourth diode and the probe.

[0031] In a possible implementation, the first transmitting circuit includes a level converter, a first switching tube, a second switching tube, a third switching tube, a fourth switching tube, a fifth diode, and a sixth diode;

[0032] The receiving end of the level converter is electrically connected to the control unit, the first output end of the level converter is electrically connected to the control end of the first switching tube, the second output end of the level converter is electrically connected to the control end of the second switching tube, the third output end of the level converter is electrically connected to the control end of the third switching tube, and the fourth output end of the level converter is electrically connected to the control end of the fourth switching tube;

[0033] The first end of the first switching tube is electrically connected to the positive electrode of the power supply, the second end of the first switching tube is electrically connected to the first end of the second switching tube, the cathode of the fifth diode, the anode of the sixth diode, and the probe, and the second end of the second switching tube is electrically connected to the negative electrode of the power supply;

[0034] The first end of the third switching tube and the substrate of the third switching tube are electrically connected to the first ground end, the second end of the third switching tube is electrically connected to the anode of the fifth diode, the cathode of the sixth diode is electrically connected to the first end of the fourth switching tube, and the second end of the fourth switching tube and the substrate of the fourth switching tube are electrically connected to the second ground end.

[0035] In a possible implementation, the second transmitting circuit includes a digital converter and a high-voltage amplifier;

[0036] The receiving end of the digital converter is electrically connected to the control unit, and the output end of the digital converter is electrically connected to the receiving end of the high-voltage amplifier;

[0037] The first end of the high-voltage amplifier is electrically connected to the positive electrode of the power supply, the second end of the high-voltage amplifier is electrically connected to the negative electrode of the power supply, and the output end of the high-voltage amplifier is electrically connected to the probe.

[0038] In a second aspect, the present application provides an ultrasonic imaging method, which is applied to an ultrasonic diagnostic instrument, wherein the ultrasonic diagnostic instrument includes a control unit, a transmitting circuit, a probe, a receiving unit, a signal processing unit, and a display unit, wherein the transmitting circuit includes a first transmitting path and a second transmitting path, and the method includes:

[0039] The control unit controls, according to different operating modes, the first transmitting path to be turned on and the second transmitting path to be turned off, so that the transmitting circuit transmits a first transmitting signal, and / or controls the first transmitting path to be turned off and the second transmitting path to be turned on, so that the transmitting circuit transmits a second transmitting signal;

[0040] The probe receives the first transmission signal or the second transmission signal, generates a sound wave, sends the sound wave to the object to be detected, and receives an echo signal reflected by the object to be detected;

[0041] The receiving unit sends the echo signal to the signal processing unit;

[0042] The signal processing unit processes the echo to generate an ultrasonic image;

[0043] The display unit displays the ultrasound image.

[0044] In one possible implementation, the control unit controls the first transmitting path to be turned on and the second transmitting path to be turned off, so that the transmitting circuit transmits a first transmitting signal, and / or controls the first transmitting path to be turned off and the second transmitting path to be turned on, so that the transmitting circuit transmits a second transmitting signal, according to different operating modes, including:

[0045] The control unit determines that the working mode is the B+C working mode;

[0046] The control unit alternately controls the first transmitting path and the second transmitting path to be turned on, so that when the first transmitting path is turned on, the transmitting circuit transmits a first transmitting signal based on a first pulse frequency, and when the second transmitting path is turned on, the transmitting circuit transmits a second transmitting signal based on a second pulse frequency, wherein the first transmitting signal is a pulsed B-mode signal and the second transmitting signal is a linear C-mode signal;

[0047] The display unit displays the ultrasound image, including:

[0048] The display unit displays the ultrasound image based on a B-mode image and a C-mode image, wherein the B-mode image is obtained by the transmitting circuit transmitting the first transmitting signal, and the C-mode image is obtained by the transmitting circuit transmitting the second transmitting signal.

[0049] The beneficial effects of the present invention are as follows:

[0050] An embodiment of the present invention provides an ultrasonic diagnostic instrument and ultrasonic imaging method. The ultrasonic diagnostic instrument includes: a control unit, a transmitting circuit, a probe, a receiving unit, a signal processing unit, and a display unit. The transmitting circuit includes a first transmitting path and a second transmitting path connected in parallel. The control unit controls the first transmitting path to be conductive and the second transmitting path to be disconnected, depending on different operating modes, so that the transmitting circuit transmits a first transmitting signal, and / or controls the first transmitting path to be disconnected and the second transmitting path to be conductive, so that the transmitting circuit transmits a second transmitting signal. The probe generates an acoustic wave based on the received first transmitting signal or the second transmitting signal and transmits the acoustic wave to an object to be detected. The receiving unit receives an echo signal from the object to be detected and processes the echo signal through the signal processing unit to generate an ultrasonic image. This application enables the ultrasonic diagnostic instrument to be compatible with two types of transmitting circuits by controlling the first transmitting path and the second transmitting path based on different operating modes of the control unit, thereby meeting the transmitting circuit performance requirements of all operating modes of the ultrasonic diagnostic instrument and improving the flexibility of the ultrasonic diagnostic instrument. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0052] Figure 1A schematic diagram of an application scenario of an ultrasonic diagnostic instrument provided in an embodiment of the present application;

[0053] Figure 2 A schematic structural diagram of another ultrasonic diagnostic apparatus provided in an embodiment of the present application;

[0054] Figure 3 A schematic structural diagram of another ultrasonic diagnostic apparatus provided in an embodiment of the present application;

[0055] Figure 4 A schematic structural diagram of another ultrasonic diagnostic apparatus provided in an embodiment of the present application;

[0056] Figure 5 A schematic structural diagram of another ultrasonic diagnostic apparatus provided in an embodiment of the present application;

[0057] Figure 6 A schematic structural diagram of another ultrasonic diagnostic apparatus provided in an embodiment of the present application;

[0058] Figure 7 A schematic structural diagram of another ultrasonic diagnostic apparatus provided in an embodiment of the present application;

[0059] Figure 8 A circuit diagram of a first transmitting circuit provided in an embodiment of the present application;

[0060] Figure 9 A circuit diagram of a second transmitting circuit provided in an embodiment of the present application;

[0061] Figure 10 A schematic diagram of a flow chart of an ultrasonic imaging method provided in an embodiment of the present application;

[0062] Figure 11 A complete flowchart of an ultrasound imaging method provided in an embodiment of the present application;

[0063] Figure 12 A schematic flow chart of another ultrasonic imaging method provided in an embodiment of the present application;

[0064] Figure 13 A complete flowchart of another ultrasound imaging method provided in an embodiment of the present application;

[0065] Figure 14 A complete flowchart of another ultrasound imaging method provided in an embodiment of the present application;

[0066] Figure 15 A complete flowchart of another ultrasound imaging method provided in an embodiment of the present application. DETAILED DESCRIPTION

[0067] To make the objectives, technical solutions, and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the embodiments described herein are merely some, rather than all, of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0068] In the description of the embodiments of the present application, unless otherwise specified, “ / ” means or, for example, A / B can mean A or B; “and / or” in the text is merely a way to describe the association relationship of associated objects, indicating that three relationships may exist, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone.

[0069] In the following, the terms "first" and "second" are used for descriptive purposes only and should not be understood to imply or suggest relative importance or implicitly indicate the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0070] The control unit in an ultrasonic diagnostic instrument can control the transmitting circuit to transmit signals with different waveform parameters according to different operating modes. Among them, the transmitting circuit can be divided into a pulse transmitting circuit and a linear transmitting circuit according to the principle. The two transmitting circuits each have advantages and disadvantages. In the existing technology, ultrasonic diagnostic instruments only have a transmitting circuit based on one principle. However, since ultrasonic diagnostic instruments have multiple operating modes and different operating modes have different performance requirements for the transmitting circuit, existing ultrasonic diagnostic instruments are difficult to meet the performance requirements of the transmitting circuit in all operating modes, and have low flexibility.

[0071] To solve the above problems, the embodiments of the present application provide an ultrasonic diagnostic instrument and an ultrasonic imaging method. The ultrasonic diagnostic instrument is compatible with two types of transmitting circuits, thereby improving the flexibility of the ultrasonic diagnostic instrument and meeting the requirements of the transmitting circuit performance in all working modes of the ultrasonic diagnostic instrument.

[0072] like Figure 1 FIG2 is a schematic diagram of an application scenario of an ultrasonic diagnostic apparatus provided in an embodiment of the present application, comprising an ultrasonic diagnostic apparatus 20 and an object to be detected 21, wherein the ultrasonic diagnostic apparatus 20 includes a display unit 106 and a probe 103. The ultrasonic diagnostic apparatus 20 is configured to transmit sound waves to the object to be detected 21 through the probe 103, receive echo signals reflected by the object to be detected 21, process the echo signals, generate an ultrasonic image, and display the ultrasonic image on the display unit 106.

[0073] The embodiments of the present invention are described in detail below.

[0074] like Figure 21 is a schematic diagram of the structure of an ultrasonic diagnostic instrument provided by an embodiment of the present application, including a control unit 101, a transmitting circuit 102, a probe 103, a receiving unit 104, a signal processing unit 105 and a display unit 106; the transmitting circuit 102 includes a first transmitting path 301 and a second transmitting path 302; the control unit 101 is used to control the first transmitting path 301 to be turned on and the second transmitting path 302 to be turned off according to different working modes, so that the transmitting circuit 102 transmits a first transmitting signal, and / or controls the first transmitting path 301 to be turned off and the second transmitting path 302 to be turned off. The transmission path 302 is turned on so that the transmitting circuit 102 transmits a second transmission signal; the probe 103 is used to generate sound waves based on the received first transmission signal or the second transmission signal, and send the sound waves to the object to be detected, and receive echo signals reflected by the object to be detected; the receiving unit 104 is used to prevent the first transmission signal or the second transmission signal from being transmitted to the signal processing unit 105, and to transmit the echo signal to the signal processing unit 105; the signal processing unit 105 is used to process the received echo signal to generate an ultrasonic image; the display unit 106 is used to display the ultrasonic image.

[0075] An embodiment of the present invention provides an ultrasonic diagnostic instrument, wherein a transmitting circuit includes a first transmitting path and a second transmitting path connected in parallel. A control unit controls the first transmitting path to be turned on and the second transmitting path to be turned off, depending on different operating modes, so that the transmitting circuit transmits a first transmitting signal, and / or controls the first transmitting path to be turned off and the second transmitting path to be turned on, so that the transmitting circuit transmits a second transmitting signal. A probe generates a sound wave based on the received first transmitting signal or the second transmitting signal and transmits the sound wave to an object to be detected. A receiving unit receives an echo signal from the object to be detected and processes the echo signal through a signal processing unit to generate an ultrasonic image. This application enables the ultrasonic diagnostic instrument to be compatible with two types of transmitting circuits by controlling the first transmitting path and the second transmitting path based on different operating modes of the control unit, thereby meeting the transmitting circuit performance requirements of all operating modes of the ultrasonic diagnostic instrument and improving the flexibility of the ultrasonic diagnostic instrument.

[0076] like Figure 3 FIG. 1 is a schematic diagram of the structure of another ultrasonic diagnostic apparatus provided in an embodiment of the present application, Figure 3 As can be seen, the first transmitting path 301 includes a first transmitting circuit 401 and a first transmitting isolation circuit 403, and the second transmitting path 302 includes a second transmitting circuit 402 and a second transmitting isolation circuit 404. Specifically, the first transmitting circuit 401 can be a pulse transmitting circuit, and the second transmitting circuit 402 can be a linear transmitting circuit.

[0077] In a specific implementation, the control unit 101 controls the first transmitting circuit 401 to transmit a first transmitting signal. At this time, the second transmitting circuit 402 is in an idle state. Since the second transmitting circuit 402 acts as a load for the first transmitting circuit 401 during circuit operation, it interferes with the first transmitting signal. Therefore, a first transmitting isolation circuit 403 is provided in the first transmitting path 301. Similarly, the control unit 101 controls the second transmitting circuit 402 to transmit a second transmitting signal. At this time, the first transmitting circuit 401 is in an idle state. Since the first transmitting circuit 401 acts as a load for the second transmitting circuit 402 during circuit operation, it interferes with the second transmitting signal. Therefore, a second transmitting isolation circuit 404 is provided in the second transmitting path 302.

[0078] Specifically, the first transmitting isolation circuit 403 is connected between the first transmitting circuit 401 and the probe 103 and is used to connect or disconnect the path between the first transmitting circuit 401 and the probe 103 under the control of the control unit 101;

[0079] The second transmitting isolation circuit 404 is connected between the second transmitting circuit 402 and the probe 103 and is used to disconnect or connect the path between the second transmitting circuit 402 and the probe 103 under the control of the control unit 101 .

[0080] For example, when the control unit 101 controls the first transmitting path 301 to be turned on and the second transmitting path 302 to be turned off according to the working mode, that is, the control unit 101 controls the first transmitting circuit 401 to transmit the first transmitting signal, controls the first transmitting isolation circuit 403 to be turned on, and controls the second transmitting isolation circuit 404 to be turned off, wherein the first transmitting isolation circuit 403 is turned on to transmit the first transmitting signal to the probe 103, and the second transmitting isolation circuit 404 is turned off to prevent the first transmitting signal from entering the second transmitting circuit 402, thereby avoiding interference with the first transmitting signal.

[0081] For another example, when the control unit 101 controls the first transmitting path 301 to be disconnected and the second transmitting path 302 to be connected according to the working mode, that is, the control unit 101 controls the first transmitting isolation circuit 403 to be disconnected and controls the second transmitting isolation circuit 404 to be connected, wherein the second transmitting isolation circuit 404 is turned on to transmit the second transmitting signal to the probe 103, and the second transmitting isolation circuit 404 is disconnected to prevent the second transmitting signal from entering the first transmitting circuit 401, thereby preventing the second transmitting signal from being interfered with.

[0082] In one possible implementation, Figure 4As shown, it is a structural schematic diagram of another ultrasonic diagnostic instrument provided in an embodiment of the present application, the first transmitting isolation circuit 403 includes a first relay 501; the first end of the first relay 501 is electrically connected to the first transmitting circuit 401, the second end of the first relay 501 is electrically connected to the probe 103, and the coil of the first relay 501 is electrically connected to the control unit 101; the second transmitting isolation circuit 404 includes a second relay 502; the first end of the second relay 502 is electrically connected to the second transmitting circuit 402, the second end of the second relay 502 is electrically connected to the probe 103, and the coil of the second relay is electrically connected to the control unit 101.

[0083] In a specific embodiment, the control unit 101 controls the closing or opening of the first relay 501 by sending a drive signal to the coil of the first relay 501, thereby realizing the conduction or disconnection of the first transmitting path 301. The control unit 101 controls the closing or opening of the second relay 502 by sending a drive signal to the coil of the second relay 502, thereby realizing the conduction or disconnection of the second transmitting path 302.

[0084] For example, when the control unit 101 controls the first transmitting path 301 to be turned on and the second transmitting path 302 to be turned off according to the working mode, the control unit 101 sends a drive signal to the coil of the first relay 501 to control the first relay 501 to be closed, and the control unit 101 does not send a drive signal to the second relay 502 to control the second relay 502 to be turned off, so that the first transmitting isolation circuit 403 is turned on and the second transmitting isolation circuit 404 is turned off. That is, the first transmitting circuit 401 can transmit the first transmitting signal and prevent the first transmitting signal from being interfered with by the second transmitting circuit 402.

[0085] For another example, when the control unit 101 controls the first transmitting path 301 to be disconnected and the second transmitting path 302 to be connected according to the working mode, the control unit 101 sends a drive signal to the coil of the second relay 502 to control the second relay 502 to be closed. Alternatively, the control unit 101 does not send a drive signal to the first relay 501 to control the first relay 501 to be disconnected, so that the first transmitting isolation circuit 403 is disconnected and the second transmitting isolation circuit 404 is closed. That is, the second transmitting circuit 402 can transmit the second transmitting signal and prevent the second transmitting signal from being interfered with by the first transmitting circuit 401.

[0086] It should be noted that in specific applications, the relay should be a small internal resistance relay, and the relay type can be a magnetic latching type.

[0087] In another possible embodiment, Figure 5As shown, it is a structural schematic diagram of another ultrasonic diagnostic instrument provided in an embodiment of the present application, wherein the first transmitting isolation circuit 403 includes a first high-voltage analog switch 601; the first end of the first high-voltage analog switch 601 is electrically connected to the first transmitting circuit 401, the second end of the first high-voltage analog switch 601 is electrically connected to the probe 103, and the control end of the first high-voltage analog switch 601 is electrically connected to the control unit 101; the second transmitting isolation circuit 404 includes a second high-voltage analog switch 602; the first end of the second high-voltage analog switch 602 is electrically connected to the second transmitting circuit 402, the second end of the second high-voltage analog switch 602 is electrically connected to the probe 103, and the control end of the second high-voltage analog switch 602 is electrically connected to the control unit 101.

[0088] In a specific embodiment, the control unit 101 controls the first high-voltage analog switch 601 to turn on or off the first transmitting path 301 , and controls the second high-voltage analog switch 602 to turn on or off the second transmitting path 302 .

[0089] For example, when the control unit 101 controls the first transmit path 301 to be turned on and the second transmit path 302 to be turned off according to the working mode, the control unit 101 controls the first high-voltage analog switch 601 to be closed, and the control unit 101 controls the second high-voltage analog switch 602 to be turned off, so that the first transmit isolation circuit 403 is turned on and the second transmit isolation circuit 404 is turned off. That is, the first transmit circuit 401 can transmit the first transmit signal and prevent the first transmit signal from being interfered with by the second transmit circuit 402.

[0090] For another example, when the control unit 101 controls the first transmit path 301 to be disconnected and the second transmit path 302 to be connected according to the operating mode, the control unit 101 controls the first high-voltage analog switch 601 to be disconnected, and the control unit 101 controls the second high-voltage analog switch 602 to be closed, so that the first transmit isolation circuit 403 is disconnected and the second transmit isolation circuit 404 is closed. That is, the second transmit circuit 402 can transmit the second transmit signal and prevent the second transmit signal from being interfered with by the first transmit circuit 401.

[0091] It should be understood that in a specific embodiment, the first transmission isolation circuit can be a first relay or a first high-voltage analog switch, and the second transmission isolation circuit can be a second relay or a second high-voltage analog switch. The preferred embodiments described herein are only used to illustrate and explain the present application and are not used to limit the present application. In addition, the embodiments and features in the embodiments of the present application can be combined with each other unless there is a conflict.

[0092] In an embodiment of the present application, during the process of receiving an echo signal by the ultrasonic diagnostic apparatus, the echo signal may be transmitted to the transmitting circuit, affecting the amplitude, frequency, phase, and other information of the echo signal. In a specific implementation, the control unit 101 can prevent the echo signal from being transmitted to the transmitting circuit by disconnecting the first transmitting isolation circuit 403 and the second transmitting isolation circuit 404. However, since the on-off switching of the first transmitting isolation circuit 403 and the second transmitting isolation circuit 404 takes a certain amount of time, it will still interfere with the received echo signal. Therefore, the present application can prevent the transmission of the echo signal by providing the first receiving isolation circuit and the second receiving isolation circuit. Specifically, the interference of the transmitting circuit on the echo signal during the echo signal reception process can be resolved in the following manner.

[0093] In one possible implementation, Figure 6 As shown, the ultrasonic diagnostic instrument also includes a first receiving isolation circuit 701 and a second receiving isolation circuit 702; the first receiving isolation circuit 701 is connected between the first transmitting isolation circuit 403 and the probe 103, and is used to prevent the echo signal from being transmitted to the first transmitting circuit 401 during the receiving stage of the ultrasonic diagnostic instrument; the second receiving isolation circuit 702 is connected between the second transmitting isolation circuit 404 and the probe 103, and is used to prevent the echo signal from being transmitted to the second transmitting circuit 402 during the receiving stage of the ultrasonic diagnostic instrument.

[0094] Specifically, such as Figure 7 As shown, the first receiving isolation circuit 701 includes a first diode D1 and a second diode D2; the cathode of the first diode D1 is electrically connected to the anode of the second diode D2 and the first transmitting isolation circuit, and the anode of the first diode D1 is electrically connected to the cathode of the second diode D2 and the probe 103; the second receiving isolation circuit 702 includes a third diode D3 and a fourth diode D4; the cathode of the third diode D3 is electrically connected to the anode of the fourth diode D4 and the second transmitting isolation circuit 404, and the anode of the third diode D3 is electrically connected to the cathode of the fourth diode D4 and the probe 103.

[0095] In a specific embodiment, since the voltages of the first transmission signal and the second transmission signal are relatively large, the first diode D1, the second diode D2, the third diode D3, and the fourth diode D4 can be turned on, thereby enabling the transmission circuit to normally transmit the first transmission signal or the second transmission signal; since the voltage of the echo signal is relatively small, the first diode D1, the second diode D2, the third diode D3, and the fourth diode D4 cannot be turned on, thereby preventing the echo signal from entering the transmission circuit 102.

[0096] For example, when the control unit 101 controls the first transmitting path 301 to be turned on and the second transmitting path 302 to be turned off according to the working mode, the control unit 101 controls the first transmitting circuit 401 to transmit the first transmitting signal. The first transmitting signal passes through the first transmitting isolation circuit 403 and turns on the first receiving isolation circuit 701 and is transmitted to the probe. When the probe returns an echo signal, the echo signal cannot turn on the first receiving isolation circuit 701 and the second receiving isolation circuit 702. Therefore, the echo signal is not interfered with and is transmitted to the receiving unit 104.

[0097] For another example, when the control unit 101 controls the first transmitting path 301 to be disconnected and the second transmitting path 302 to be turned on according to the working mode, the control unit 101 controls the second transmitting circuit 402 to transmit the second transmitting signal. The second transmitting signal passes through the second transmitting isolation circuit 404 and turns on the second receiving isolation circuit 702 and is transmitted to the probe. When the probe returns an echo signal, the echo signal cannot turn on the first receiving isolation circuit 701 and the second receiving isolation circuit 702. Therefore, the echo signal is not interfered with and is transmitted to the receiving unit 104.

[0098] It should be noted that the forward voltage of the first diode D1 , the second diode D2 , the third diode D3 and the fourth diode D4 needs to be greater than or equal to 500 mV.

[0099] In one possible implementation, Figure 8 As shown, it is a circuit diagram of the first transmitting circuit provided in an embodiment of the present application. The first transmitting circuit includes a level converter 901, a first switch tube Q1, a second switch tube Q2, a third switch tube Q3, a fourth switch tube Q4, a fifth diode D5, and a sixth diode D6; the receiving end of the level converter 901 is electrically connected to the control unit 101, the first output end of the level converter 901 is electrically connected to the control end of the first switch tube Q1, the second output end of the level converter 901 is electrically connected to the control end of the second switch tube Q2, the third output end of the level converter 901 is electrically connected to the control end of the third switch tube Q3, and the fourth output end of the level converter 901 is electrically connected to the control end of the fourth switch tube Q4. The control end is electrically connected; the first end of the first switching tube Q1 is connected to the positive electrode HVP of the power supply, the second end of the first switching tube Q1 is electrically connected to the first end of the second switching tube Q2, the cathode of the fifth diode D5, the anode of the sixth diode D6 and the probe 103, and the second end of the second switching tube Q2 is electrically connected to the negative electrode HVN of the power supply; the first end of the third switching tube Q3 and the substrate of the third switching tube Q3 are electrically connected to the first ground end, the second end of the third switching tube Q3 is electrically connected to the anode of the fifth diode D5, the cathode of the sixth diode D6 is electrically connected to the first end of the fourth switching tube Q4, and the second end of the fourth switching tube Q4 and the substrate of the fourth switching tube Q4 are electrically connected to the second ground end.

[0100] In a specific embodiment, the first transmitting circuit receives a signal sent by the control unit and transmits a first transmitting signal, wherein the first transmitting circuit can be a pulse transmitting circuit. The pulse transmitting circuit has high working efficiency, low heat energy consumption, can perform long pulse width transmission or continuous transmission, and has a large output transmission signal current driving capability.

[0101] like Figure 9 As shown, it is a circuit diagram of the second transmitting circuit provided in an embodiment of the present application, and the second transmitting circuit includes a digitizer 1001 and a high-voltage amplifier 1002; the receiving end of the digitizer 1001 is electrically connected to the control unit 101, and the output end of the digitizer 1001 is electrically connected to the receiving end of the high-voltage amplifier 1002; the first end of the high-voltage amplifier 1002 is connected to the positive electrode HVP of the power supply, the second end of the high-voltage amplifier 1002 is connected to the negative electrode HVN of the power supply, and the output end of the high-voltage amplifier 1002 is electrically connected to the probe 103.

[0102] In a specific embodiment, the second transmitting circuit receives a signal sent by the control unit and transmits a second transmitting signal. The second transmitting circuit may be a linear transmitting circuit. The voltage of the second transmitting signal output by the linear transmitting circuit is affected by the digital converter. The waveform of the output second transmitting signal depends on the clock of the digital converter 1001. The waveform amplitude, frequency, and phase are flexibly controllable, and various complex waveforms such as apodization, frequency modulation, and phase modulation can be output.

[0103] Based on the same inventive concept, an embodiment of the present application also provides an ultrasonic imaging method, which is applied to any of the ultrasonic diagnostic instruments described above. The implementation of the ultrasonic imaging method can refer to the implementation of any of the ultrasonic diagnostic instruments described above, and the repeated parts will not be repeated.

[0104] like Figure 10 FIG. 1 is a flow chart of an ultrasound imaging method provided in an embodiment of the present application, which specifically includes the following steps:

[0105] S1101. The control unit controls the first transmitting path to be turned on and the second transmitting path to be turned off, so that the transmitting circuit transmits a first transmitting signal, and / or controls the first transmitting path to be turned off and the second transmitting path to be turned on, so that the transmitting circuit transmits a second transmitting signal, according to different operating modes.

[0106] S1102: The probe receives the first transmission signal or the second transmission signal, generates a sound wave, sends the sound wave to the object to be detected, and receives an echo signal reflected by the object to be detected;

[0107] S1103, the receiving unit sends the echo signal to the signal processing unit;

[0108] S1104: The signal processing unit processes the echo to generate an ultrasonic image;

[0109] S1105. The display unit displays the ultrasound image.

[0110] An embodiment of the present invention provides an ultrasonic imaging method. First, according to different operating modes, a first transmitting path is controlled to be turned on and a second transmitting path is disconnected, so that the transmitting circuit transmits a first transmitting signal, and / or the first transmitting path is controlled to be disconnected and the second transmitting path is turned on, so that the transmitting circuit transmits a second transmitting signal. Then, based on the received first transmitting signal or second transmitting signal, the probe generates a sound wave and sends the sound wave to the object to be detected. Finally, an echo signal reflected by the object to be detected is received and the echo signal is processed to generate an ultrasonic image. This application makes the ultrasonic diagnostic instrument compatible with two types of transmitting circuits by controlling the first transmitting path and the second transmitting path based on different operating modes by a control unit, thereby meeting the transmitting circuit performance requirements of all operating modes of the ultrasonic diagnostic instrument and improving the flexibility of the ultrasonic diagnostic instrument.

[0111] like Figure 11 FIG. 1 is a schematic diagram of a complete process of an ultrasound imaging method provided in an embodiment of the present application, the method comprising:

[0112] S1201: The ultrasound system is started, and the first transmission path or the second transmission path is determined to be turned on according to different working modes;

[0113] S1202: Control a first transmitting path of a transmitting circuit in the ultrasonic diagnostic apparatus to be turned on, and control a second transmitting path of the transmitting circuit of the ultrasonic diagnostic apparatus to be turned off, so that the transmitting circuit transmits a first transmitting signal;

[0114] S1203, controlling the first transmitting path of the transmitting circuit in the ultrasonic diagnostic apparatus to be disconnected, and controlling the second transmitting path to be connected, so that the transmitting circuit transmits a second transmitting signal;

[0115] S1204: The probe receives the first transmission signal, generates a sound wave, sends the sound wave to the object to be detected, and receives an echo signal reflected by the object to be detected;

[0116] S1205: The probe receives the second transmission signal, generates a sound wave, sends the sound wave to the object to be detected, and receives an echo signal reflected by the object to be detected;

[0117] S1206, the receiving unit receives the echo signal and transmits the echo signal to the signal processing unit;

[0118] S1207: The signal processing unit processes the received echo signal to generate an ultrasound image, and displays the ultrasound image on the display unit.

[0119] In one possible implementation, Figure 12 FIG. 1 is a flow chart of another ultrasonic imaging method provided by an embodiment of the present application. The control unit controls the first transmitting path to be turned on and the second transmitting path to be turned off, so that the transmitting circuit transmits a first transmitting signal, and / or controls the first transmitting path to be turned off and the second transmitting path to be turned on, so that the transmitting circuit transmits a second transmitting signal, according to different operating modes. The method includes:

[0120] S1301, the control unit determines that the working mode is the target working mode;

[0121] S1302: Controlling a first transmitting path of a transmitting circuit in the ultrasonic diagnostic apparatus to be turned on and a second transmitting path to be turned off, so that the transmitting circuit transmits a first transmitting signal based on a first pulse frequency to obtain a first sub-target ultrasonic image;

[0122] S1303, controlling the second transmitting path of the transmitting circuit in the ultrasonic diagnostic apparatus to be turned on, and controlling the first transmitting path to be turned off, so that the transmitting circuit transmits a second transmitting signal based on a second pulse frequency to obtain a second sub-target ultrasonic image.

[0123] In a specific embodiment, for example, if the target working mode is determined to be the B+C working mode, the first sub-target working mode can be the B working mode, and the second sub-target working mode can be the C working mode. The control unit controls the first transmitting path to be turned on, and controls the second transmitting path to be disconnected, so that the transmitting circuit transmits a first transmitting signal based on a first pulse frequency, and the receiving unit 104 and the signal processing unit 105 receive the echo signal to generate a B-mode ultrasound image. Afterwards, the control unit controls the second transmitting path to be turned on, and controls the first transmitting path to be disconnected, so that the transmitting circuit transmits a second transmitting signal based on a second pulse frequency, and the receiving unit 104 and the signal processing unit 105 receive the echo signal to generate a C-mode ultrasound image. The control unit 101 alternately controls the first transmitting path and the second transmitting path to be turned on, and the receiving unit 104 and the signal processing unit 105 receive the echo signal to generate a target ultrasound image.

[0124] like Figure 13 FIG. 1 is a complete flow chart of another ultrasonic imaging method provided in an embodiment of the present application, the method comprising:

[0125] S1401: The ultrasound system is started and the target operating mode is determined to be the B+C operating mode;

[0126] S1402, controlling the first transmitting path to be turned on, and controlling the second transmitting path to be turned off, so that the transmitting circuit transmits a first transmitting signal based on a first pulse frequency;

[0127] In S1402 , the control unit may control the first transmitting path to be turned on and the second transmitting path to be turned off based on the B working mode. The first transmitting signal may be a pulser-type B-mode signal.

[0128] S1403: The probe generates a sound wave based on the received first transmission signal, sends the sound wave to the object to be detected, and receives an echo signal reflected by the object to be detected;

[0129] S1404, the receiving unit receives the echo signal and transmits the echo signal to the signal processing unit;

[0130] S1405: The signal processing unit processes the received echo signal to generate a B-mode ultrasound image, and displays the B-mode ultrasound image on the display unit;

[0131] S1406: Control the first transmitting path to be disconnected, and control the second transmitting path to be connected, so that the transmitting circuit transmits a second transmitting signal based on the second pulse frequency;

[0132] In S1406 , the control unit may control the first transmission path to be disconnected and the second transmission path to be connected based on the C working mode, and the second transmission signal may be a Linear C-mode signal.

[0133] S1407: The probe generates a sound wave based on the received first transmission signal, sends the sound wave to the object to be detected, and receives an echo signal reflected by the object to be detected;

[0134] S1408. The receiving unit receives the echo signal and transmits the echo signal to the signal processing unit;

[0135] S1409: The signal processing unit processes the received echo signal to generate a C-mode ultrasound image, and displays the C-mode ultrasound image on the display unit.

[0136] The B-mode ultrasound image and the C-mode ultrasound image are alternately displayed on the display unit, that is, the ultrasound image displayed on the display unit.

[0137] In a specific embodiment, for example, if the working mode is determined to be the elastic imaging working mode, the control unit controls the second transmitting path to be turned on and the first transmitting path to be turned off, so that the transmitting circuit transmits the second transmitting signal based on the second pulse frequency, and the receiving unit and the signal processing unit receive the echo signal to generate a B-mode ultrasound image. Afterwards, based on the elastic imaging sub-working mode, the first transmitting path is first controlled to be turned on and the second transmitting path is controlled to be turned off, so that the transmitting circuit transmits the first transmitting signal based on the first pulse frequency, and then the second transmitting path is controlled to be turned on and the first transmitting path is controlled to be turned off, so that the transmitting circuit transmits the second transmitting signal based on the second pulse frequency. The first transmitting path and the second transmitting path are alternately controlled to be turned on multiple times, and the echo signal is received to generate an elastic imaging working mode ultrasound image.

[0138] like Figure 14 FIG. 1 is a complete flow chart of another ultrasonic imaging method provided in an embodiment of the present application, the method comprising:

[0139] S1501: The ultrasound system is started and the working mode is determined to be the elastic imaging working mode;

[0140] S1502, controlling the second transmitting path to be turned on, and controlling the first transmitting path to be turned off, so that the transmitting circuit transmits a second transmitting signal;

[0141] In S1502, the control unit may control the second transmission path to be turned on and the first transmission path to be turned off based on the B working mode. The second transmission signal may be a Linear B mode signal.

[0142] S1503: The probe generates a sound wave based on the received second transmission signal, sends the sound wave to the object to be detected, and receives an echo signal reflected by the object to be detected;

[0143] S1504, the receiving unit receives the echo signal and transmits the echo signal to the signal processing unit;

[0144] S1505: The signal processing unit processes the received echo signal to generate a B-mode ultrasound image, and displays the B-mode ultrasound image on the display unit;

[0145] S1506: Control the first transmitting path to be turned on, and control the second transmitting path to be turned off, so that the transmitting circuit transmits a first transmitting signal based on the first pulse frequency;

[0146] In S1506 , the control unit may control the first transmitting path to be turned on and the second transmitting path to be turned off based on the elastic imaging working mode. The first transmitting signal may be a pulser-type push signal.

[0147] S1507: The probe generates a sound wave based on the received first transmission signal, sends the sound wave to the object to be detected, and receives an echo signal reflected by the object to be detected;

[0148] S1508, controlling the first transmitting path to be disconnected, and controlling the second transmitting path to be connected, so that the transmitting circuit transmits a second transmitting signal based on the second pulse frequency;

[0149] In S1508, the control unit may control the first transmission path to be disconnected and the second transmission path to be connected based on the elastic imaging working mode, and the second transmission signal may be a linear detection signal.

[0150] S1509: The probe generates a sound wave based on the received second transmission signal, sends the sound wave to the object to be detected, and receives an echo signal reflected by the object to be detected;

[0151] S1510, the receiving unit receives the echo signal and transmits the echo signal to the signal processing unit;

[0152] S1511: The signal processing unit processes the received echo signal to generate an ultrasound image in an elastic imaging working mode, and displays the ultrasound image in the elastic imaging working mode on a display unit.

[0153] In a specific embodiment, for example, if the working mode is determined to be the B+CW working mode, the control unit controls the second transmitting path to be turned on and the first transmitting path to be turned off, so that the transmitting circuit transmits the second transmitting signal based on the second pulse frequency and receives the echo signal to generate a B-mode ultrasound image. Afterwards, the control unit controls the first transmitting path to be turned on and the second transmitting path to be turned off, so that the transmitting circuit transmits the first transmitting signal based on the first pulse frequency and receives the echo signal to generate a CW-mode ultrasound image. The first transmitting path and the second transmitting path are alternately controlled to be turned on and the echo signal is received to generate a target ultrasound image.

[0154] like Figure 15 FIG. 1 is a complete flow chart of another ultrasonic imaging method provided in an embodiment of the present application, the method comprising:

[0155] S1601: The ultrasound system is started and the target operating mode is determined to be the B+CW operating mode;

[0156] S1602: Control the second transmitting path to be turned on, and control the first transmitting path to be turned off, so that the transmitting circuit transmits a second transmitting signal based on a second pulse frequency;

[0157] In S1602, the control unit may control the second transmission path to be turned on and the first transmission path to be turned off based on the B working mode. The second transmission signal may be a Linear B mode signal.

[0158] S1603: The probe generates a sound wave based on the received second transmission signal, sends the sound wave to the object to be detected, and receives an echo signal reflected by the object to be detected;

[0159] S1604: The receiving unit receives the echo signal and transmits the echo signal to the signal processing unit;

[0160] S1605: The signal processing unit processes the received echo signal to generate a B-mode ultrasound image, and displays the B-mode ultrasound image on the display unit;

[0161] S1606: Control the first transmitting path to be turned on, and control the second transmitting path to be turned off, so that the transmitting circuit transmits a first transmitting signal based on the first pulse frequency;

[0162] In S1606 , the control unit may control the first transmission path to be turned on and the second transmission path to be turned off based on the CW working mode. The first transmission signal may be a pulser CW mode signal.

[0163] S1607: The probe generates a sound wave based on the received first transmission signal, sends the sound wave to the object to be detected, and receives an echo signal reflected by the object to be detected;

[0164] S1608. The receiving unit receives the echo signal and transmits the echo signal to the signal processing unit;

[0165] S1609: The signal processing unit processes the received echo signal to generate a CW mode ultrasound image, and displays the CW mode ultrasound image on the display unit.

[0166] An embodiment of the present invention provides an ultrasonic diagnostic instrument and ultrasonic imaging method. The ultrasonic diagnostic instrument includes: a control unit, a transmitting circuit, a probe, a receiving unit, a signal processing unit, and a display unit. The transmitting circuit includes a first transmitting path and a second transmitting path connected in parallel. The control unit controls the first transmitting path to be conductive and the second transmitting path to be disconnected, depending on different operating modes, so that the transmitting circuit transmits a first transmitting signal, and / or controls the first transmitting path to be disconnected and the second transmitting path to be conductive, so that the transmitting circuit transmits a second transmitting signal. The probe generates an acoustic wave based on the received first transmitting signal or the second transmitting signal and transmits the acoustic wave to an object to be detected. The receiving unit receives an echo signal from the object to be detected and processes the echo signal through the signal processing unit to generate an ultrasonic image. This application enables the ultrasonic diagnostic instrument to be compatible with two types of transmitting circuits by controlling the first transmitting path and the second transmitting path based on different operating modes of the control unit, thereby meeting the transmitting circuit performance requirements of all operating modes of the ultrasonic diagnostic instrument and improving the flexibility of the ultrasonic diagnostic instrument.

[0167] The present application is described above with reference to block diagrams and / or flow charts illustrating methods, apparatus (systems) and / or computer program products according to embodiments of the present application. It should be understood that a block of a block diagram and / or flow chart, as well as a combination of blocks of a block diagram and / or flow chart, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer and / or other programmable data processing device to produce a machine such that instructions executed by the computer processor and / or other programmable data processing device create a method for implementing the functions / actions specified in the block diagram and / or flow chart block.

[0168] Accordingly, the present application may also be implemented using hardware and / or software (including firmware, resident software, microcode, etc.). Furthermore, the present application may take the form of a computer program product on a computer-usable or computer-readable storage medium having computer-usable or computer-readable program code embodied in the medium for use by or in conjunction with an instruction execution system. In the context of the present application, a computer-usable or computer-readable medium may be any medium that can contain, store, communicate, transmit, or convey a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0169] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. An ultrasonic diagnostic apparatus, characterized in that: include: Control unit, transmitting circuit, probe, receiving unit, signal processing unit and display unit; The transmitting circuit includes a first transmitting path and a second transmitting path; The control unit is configured to, according to different operating modes, control the first transmitting path to be turned on and the second transmitting path to be turned off, so that the transmitting circuit transmits a first transmitting signal, and / or control the first transmitting path to be turned off and the second transmitting path to be turned on, so that the transmitting circuit transmits a second transmitting signal; The probe is configured to generate a sound wave based on the received first transmission signal or the received second transmission signal, send the sound wave to the object to be detected, and receive an echo signal reflected by the object to be detected; The receiving unit is configured to prevent the first transmission signal or the second transmission signal from being transmitted to the signal processing unit, and to transmit the echo signal to the signal processing unit; The signal processing unit is configured to process the received echo signal to generate an ultrasonic image; The display unit is used to display the ultrasound image.

2. The ultrasonic diagnostic apparatus according to claim 1, wherein: The first transmitting path includes a first transmitting circuit and a first transmitting isolation circuit; The first transmitting isolation circuit is connected between the first transmitting circuit and the probe, and is used to connect or disconnect the path between the first transmitting circuit and the probe under the control of the control unit; The second transmitting path includes a second transmitting circuit and a second transmitting isolation circuit; The second transmitting isolation circuit is connected between the second transmitting circuit and the probe, and is used to disconnect the path between the second transmitting circuit and the probe, or connect the path between the second transmitting circuit and the probe, under the control of the control unit.

3. The ultrasonic diagnostic apparatus according to claim 2, wherein: The first transmission isolation circuit includes a first relay; A first end of the first relay is electrically connected to the first transmitting circuit, a second end of the first relay is electrically connected to the probe, and a coil of the first relay is electrically connected to the control unit; The second emission isolation circuit includes a second relay; A first end of the second relay is electrically connected to the second transmitting circuit, a second end of the second relay is electrically connected to the probe, and a coil of the second relay is electrically connected to the control unit.

4. The ultrasonic diagnostic apparatus according to claim 2, wherein: The first emission isolation circuit includes a first high-voltage analog switch; A first end of the first high-voltage analog switch is electrically connected to the first transmitting circuit, a second end of the first high-voltage analog switch is electrically connected to the probe, and a control end of the first high-voltage analog switch is electrically connected to the control unit; The second emission isolation circuit includes a second high-voltage analog switch; A first end of the second high-voltage analog switch is electrically connected to the second transmitting circuit, a second end of the second high-voltage analog switch is electrically connected to the probe, and a control end of the second high-voltage analog switch is electrically connected to the control unit.

5. The ultrasonic diagnostic apparatus according to claim 2, wherein: Also included is a first receiving isolation circuit and a second receiving isolation circuit; The first receiving isolation circuit is connected between the first transmitting isolation circuit and the probe, and is used to prevent the echo signal from being transmitted to the first transmitting circuit; The second receiving isolation circuit is connected between the second transmitting isolation circuit and the probe, and is used to prevent the echo signal from being transmitted to the second transmitting circuit.

6. The ultrasonic diagnostic apparatus according to claim 5, wherein: The first receiving isolation circuit includes a first diode and a second diode; The cathode of the first diode is electrically connected to the anode of the second diode and the first emission isolation circuit, and the anode of the first diode is electrically connected to the cathode of the second diode and the probe; The second receiving isolation circuit includes a third diode and a fourth diode; The cathode of the third diode is electrically connected to the anode of the fourth diode and the second emission isolation circuit, and the anode of the third diode is electrically connected to the cathode of the fourth diode and the probe.

7. The ultrasonic diagnostic apparatus according to any one of claims 1 to 6, wherein: The first transmitting circuit includes a level converter, a first switching tube, a second switching tube, a third switching tube, a fourth switching tube, a fifth diode, and a sixth diode; The receiving end of the level converter is electrically connected to the control unit, the first output end of the level converter is electrically connected to the control end of the first switching tube, the second output end of the level converter is electrically connected to the control end of the second switching tube, the third output end of the level converter is electrically connected to the control end of the third switching tube, and the fourth output end of the level converter is electrically connected to the control end of the fourth switching tube; The first end of the first switching tube is electrically connected to the positive electrode of the power supply, the second end of the first switching tube is electrically connected to the first end of the second switching tube, the cathode of the fifth diode, the anode of the sixth diode, and the probe, and the second end of the second switching tube is electrically connected to the negative electrode of the power supply; The first end of the third switching tube and the substrate of the third switching tube are electrically connected to the first ground end, the second end of the third switching tube is electrically connected to the anode of the fifth diode, the cathode of the sixth diode is electrically connected to the first end of the fourth switching tube, and the second end of the fourth switching tube and the substrate of the fourth switching tube are electrically connected to the second ground end.

8. The ultrasonic diagnostic apparatus according to any one of claims 1 to 6, wherein: The second transmitting circuit includes a digital converter and a high-voltage amplifier; The receiving end of the digital converter is electrically connected to the control unit, and the output end of the digital converter is electrically connected to the receiving end of the high-voltage amplifier; The first end of the high-voltage amplifier is electrically connected to the positive electrode of the power supply, the second end of the high-voltage amplifier is electrically connected to the negative electrode of the power supply, and the output end of the high-voltage amplifier is electrically connected to the probe.

9. An ultrasonic imaging method, characterized in that: Applied to an ultrasonic diagnostic instrument, the ultrasonic diagnostic instrument includes a control unit, a transmitting circuit, a probe, a receiving unit, a signal processing unit, and a display unit, wherein the transmitting circuit includes a first transmitting path and a second transmitting path, the method includes: The control unit controls, according to different operating modes, the first transmitting path to be turned on and the second transmitting path to be turned off, so that the transmitting circuit transmits a first transmitting signal, and / or controls the first transmitting path to be turned off and the second transmitting path to be turned on, so that the transmitting circuit transmits a second transmitting signal; The probe receives the first transmission signal or the second transmission signal, generates a sound wave, sends the sound wave to the object to be detected, and receives an echo signal reflected by the object to be detected; The receiving unit sends the echo signal to the signal processing unit; The signal processing unit processes the echo to generate an ultrasonic image; The display unit displays the ultrasound image.

10. The method according to claim 9, wherein The control unit controls the first transmitting path to be turned on and the second transmitting path to be turned off according to different operating modes, so that the transmitting circuit transmits a first transmitting signal, and / or controls the first transmitting path to be turned off and the second transmitting path to be turned on, so that the transmitting circuit transmits a second transmitting signal, including: The control unit determines that the working mode is the B+C working mode; The control unit alternately controls the first transmitting path and the second transmitting path to be turned on, so that when the first transmitting path is turned on, the transmitting circuit transmits a first transmitting signal based on a first pulse frequency, and when the second transmitting path is turned on, the transmitting circuit transmits a second transmitting signal based on a second pulse frequency, wherein the first transmitting signal is a pulsed B-mode signal and the second transmitting signal is a linear C-mode signal; The display unit displays the ultrasound image, including: The display unit displays the ultrasound image based on a B-mode image and a C-mode image, wherein the B-mode image is obtained by the transmitting circuit transmitting the first transmitting signal, and the C-mode image is obtained by the transmitting circuit transmitting the second transmitting signal.

Images