JP2006314558A - Capsule for ultrasonic diagnosis - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To realize a smaller capsule for ultrasonic diagnosis with a simple structure along with a lower power consumption. <P>SOLUTION: The capsule for ultrasonic diagnosis comprises an ultrasonic oscillator which transmits or receives ultrasonic pulses for acquiring ultrasonic tomographic images, a built-in power source of the capsule as a voltage supply part for supplying a voltage for driving the ultrasonic oscillator and is made guidable into a celom. The capsule for ultrasonic diagnosis generates an overlapped signal by making a pulse timing signal for driving the ultrasonic oscillator overlapped with a DC voltage of 3 or 4 V from the built-in power source part of the capsule and the generated overlapped signal is directly boosted to almost 150 V to output a drive pulse signal to the ultrasonic oscillator. A direct pulse amplification circuit 53 is built as a drive pulse generation part. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a capsule for ultrasonic diagnosis that can be introduced into a body cavity.

Conventionally, ultrasonic diagnostic apparatuses have been widely used for diagnosis and the like. A conventional ultrasonic diagnostic apparatus repeatedly transmits an ultrasonic pulse from an ultrasonic transducer to a living tissue from outside or inside the body, receives an echo signal of the ultrasonic pulse reflected from the living tissue, and receives an ultrasonic tomography. I'm building an image.
Recently, capsule medical devices are being used. This capsule medical device is swallowed from a patient's mouth and introduced into a body cavity. Such a capsule-type medical device can easily reach a deep part of a body cavity, which was difficult to reach even with an endoscope having an elongated insertion portion, and can perform medical actions such as observation and diagnosis.

  As the capsule medical device, for example, an ultrasonic diagnostic capsule described in Japanese Patent Application Laid-Open No. 09-135832 that can acquire an ultrasonic tomographic image has been proposed. In this ultrasonic diagnostic capsule, an ultrasonic tomographic image is acquired by rotating an ultrasonic transducer and simultaneously transmitting and receiving ultrasonic pulses in a radial direction orthogonal to the longitudinal direction. ing.

  In such a conventional ultrasonic diagnostic capsule, a drive pulse generation unit that generates a drive pulse signal to be applied to the ultrasonic transducer is configured as shown in FIG. 8, for example. 8 is a circuit block diagram showing a drive pulse generation unit used in a conventional ultrasonic diagnostic apparatus, FIG. 9 is a graph showing a DC voltage in the drive pulse generation unit of FIG. 8, and FIG. 10 is in the drive pulse generation unit of FIG. 6 is a graph showing a pulse timing signal and a driving pulse signal.

  As shown in FIG. 8, the conventional drive pulse generation unit 100 generates a pulsating voltage by the switching unit 101 for a low DC voltage of 3 or 4 V output from the battery, and boosts this pulsating voltage by the step-up transformer 102. . The drive pulse generator 100 rectifies and smoothes the boosted AC voltage by the rectifier / smoothing unit 103 to generate a high DC voltage of approximately 150 V, and the pulse generator circuit 104 generates a super-DC voltage for the generated DC voltage. A drive pulse signal is generated by superimposing a pulse timing signal from a sound wave control unit (not shown).

Based on the oscillation frequency from the oscillation unit 101a, the switching unit 101 pulsates the DC voltage from the battery by a switching IC 101b such as an FET (field drop transistor) or a bipolar transistor. The pulse generation circuit 104 switches a pulse timing signal by a switching driver 104a, and generates a drive pulse signal by superimposing the switched pulse timing signal on a DC voltage by a switching IC 104b.
The DC voltage output from the battery is the solid line in FIG. 9, the rectified and smoothed high DC voltage is the broken line in FIG. 9, the pulse timing signal is the solid line in FIG. 10, and this pulse timing signal is the high DC voltage. The drive pulse signals generated by being superimposed on each are represented by broken lines in FIG.
Japanese Patent Laid-Open No. 09-135832

  However, since the drive pulse generator used in the conventional ultrasonic diagnostic capsule is configured to superimpose a pulse timing signal after boosting a low DC voltage from the battery, in order to cope with a high voltage In addition, the rectifying / smoothing unit and the pulse generation circuit are configured using high withstand voltage components, and a switching unit including an oscillation unit and a switching IC is required to generate a pulsating voltage.

  For this reason, the conventional drive pulse generation unit uses the high withstand voltage components, so that the components of the rectification / smoothing unit and the pulse generation circuit are increased, and the switching unit configured by the oscillation unit and the switching IC is used. Since the circuit is required, the circuit configuration becomes more complicated and the size is increased. Furthermore, the conventional drive pulse generator has a power loss that increases as the circuit configuration becomes complicated and becomes larger, resulting in an increase in power consumption. Therefore, the conventional ultrasonic diagnostic capsule is increased in size and power consumption.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a small ultrasonic diagnostic capsule with a simple configuration while reducing power consumption.

  In order to solve the above-described problem, an ultrasonic diagnostic capsule according to the present invention includes an ultrasonic transducer that transmits and receives an ultrasonic pulse for acquiring an ultrasonic tomographic image, and a voltage for driving the ultrasonic transducer. An ultrasonic diagnostic capsule that can be introduced into a body cavity, and a pulse timing signal for driving the ultrasonic transducer is supplied to the supply voltage supplied from the voltage supply unit. A superposition signal is generated by superposition, and a drive pulse generation unit that directly boosts the generated superposition signal and outputs a drive pulse signal to the ultrasonic transducer is provided.

  The capsule for ultrasonic diagnosis according to the present invention has an effect of reducing power consumption and being small in size with a simple configuration.

  An embodiment of the present invention will be described below with reference to the drawings.

  1 to 7 relate to the first embodiment of the present invention, FIG. 1 is an overall configuration diagram showing the capsule ultrasonic diagnostic apparatus of the first embodiment, and FIG. 2 is a circuit configuration of the capsule ultrasonic diagnostic apparatus of FIG. 3 is a block diagram showing the configuration of the capsule side signal processing unit in FIG. 2, FIG. 4 is a block diagram showing the configuration of the capsule side control unit in FIG. 2, and FIG. 5 is a block diagram of the pulse direct amplifier circuit in FIG. FIG. 6 is a graph showing a DC voltage in the pulse direct amplifier circuit of FIG. 5, and FIG. 7 is a graph showing a pulse timing signal and a drive pulse signal in the pulse direct amplifier circuit of FIG.

As shown in FIGS. 1 and 2, the capsule ultrasonic diagnostic apparatus 1 according to the first embodiment includes an ultrasonic diagnostic capsule 2 and an ultrasonic observation apparatus 3 provided outside the body. The ultrasonic diagnostic capsule 2 is introduced into a body cavity by being swallowed from a patient's mouth, and communicates with the ultrasonic observation device 3 to transmit and receive ultrasonic waves at a target site in the body cavity to obtain an ultrasonic tomographic image. Is configured to get.
The ultrasonic diagnostic capsule 2 includes an ultrasonic unit 11, a capsule side signal processing unit 12, an in-capsule power supply unit 13, a capsule side control unit 14, a capsule side transmission / reception unit 15, and a capsule side antenna 16. It is configured.

  The ultrasonic unit 11 includes an ultrasonic transducer 21 that transmits an ultrasonic pulse to a biological tissue in the body and receives an echo signal of the ultrasonic pulse reflected from the biological tissue. The ultrasonic unit 11 is provided with a rotation driving unit 22 such as a motor for rotating the ultrasonic transducer 21. The rotation drive unit 22 includes an encoder (not shown), and outputs an encoder signal from the encoder to the capsule side signal processing unit 12 and the capsule side control unit 14. In the ultrasonic unit 11, although not shown, the periphery of the ultrasonic transducer 21 is filled with an ultrasonic transmission medium such as liquid paraffin.

The capsule side signal processing unit 12 performs signal processing on the echo signal from the ultrasonic transducer 21 of the ultrasonic unit 11 based on the encoder signal, and outputs the obtained image signal to the capsule side control unit 14. It is designed to output.
The in-capsule power supply unit 13 includes a battery (not shown) that supplies power to each unit in the ultrasonic diagnostic capsule 2 as a voltage supply unit. In addition, you may comprise the said power supply part 13 in a capsule so that it may generate electric power with the electric power generation means provided instead of the battery. In this case, the power generation means may generate power by moving the capsule in the body cavity, may be configured to take out the generated energy from the wireless communication signal from the ultrasonic observation device 3, or may be configured outside the body. The power generation energy may be extracted by electromagnetic induction using an alternating magnetic field.

The supply voltage from the intracapsule power supply unit 13 is supplied to the capsule side control unit 14, and the capsule side control unit 14 drives to drive the ultrasonic transducer 21 of the ultrasonic unit 11 as will be described later. A pulse signal is generated, and the generated drive pulse signal is output to the ultrasonic transducer 21 to drive the ultrasonic transducer 21.
The capsule-side control unit 14 outputs a drive signal for driving the rotation drive unit 22 in synchronization with the transmission / reception timing of the ultrasonic transducer 21.

  Accordingly, the ultrasonic diagnostic capsule 2 is configured such that the rotation driving unit 22 rotationally drives the ultrasonic transducer 21 in a radial direction that is perpendicular to the longitudinal central axis of the ultrasonic diagnostic capsule 2. It has become. That is, the ultrasound diagnostic capsule 2 is subjected to radial scanning for obtaining an ultrasonic tomographic image oriented perpendicular to the longitudinal central axis.

The capsule side control unit 14 reads an echo signal from the ultrasonic transducer 21 through the capsule side signal processing unit 12 and causes the capsule side signal processing unit 12 to perform signal processing. The capsule-side control unit 14 is configured to transmit the image signal processed by the capsule-side signal processing unit 12 to the ultrasonic observation apparatus 3 via the capsule-side transmission / reception unit 15.
The capsule-side transmitting / receiving unit 15 modulates an image signal from the capsule-side signal processing unit 12 via the capsule-side control unit 14 and transmits it as a radio wave from the capsule-side antenna 16.

  On the other hand, the ultrasonic observation apparatus 3 includes a device-side antenna 31, a device-side transmission / reception unit 32, a device-side signal processing unit 33, a device-side control unit 34, an image processing unit 35, a monitor 36, and an operation input. Unit 37 and an in-device power supply unit 38. The device-side antenna 31 is configured to perform wireless communication with the ultrasonic diagnostic capsule 2.

  The apparatus-side transmitting / receiving unit 32 selectively extracts a radio wave carrier wave (carrier signal) received from the ultrasonic diagnostic capsule 2 received by the apparatus-side antenna 31 and demodulates an image signal by detection or the like. It has become. The device-side signal processing unit 33 performs A / D conversion processing on the image signal from the device-side transmission / reception unit 32.

  The image processing unit 35 performs image signal processing on an image signal input via the device-side control unit 34 to generate a standard video signal. The image processing unit 35 outputs the generated video signal to the monitor 36 and displays the ultrasonic tomographic image from the ultrasonic diagnostic capsule 2 on the display screen of the monitor 36.

The device-side control unit 34 is connected to an operation input unit 37 such as a keyboard or a mouse. Based on the operation information input from the operation input unit 37, the device-side control unit 34 controls the image processing unit 35 to make an operator's request. Such image signal processing is performed.
The in-device power supply unit 38 is configured to supply power from a commercial power source to each component. The in-device power supply unit 38 may include a battery (not shown).

Next, the configuration of the capsule signal processing unit 12 will be described with reference to FIG.
As shown in FIG. 3, the capsule-side signal processing unit 12 includes an amplifier 41, a filter 42, and a capsule-side image processing unit 43. The amplifier 41 amplifies an echo signal from the ultrasonic transducer 21 of the ultrasonic unit 11.

The filter 42 is formed of a BPF (Band-Pass Filter) that allows only necessary signals to pass therethrough. The filter 42 removes high frequency and low frequency signals from the ultrasonic echo signal amplified by the amplifier 41 to extract a frequency component necessary for generating an ultrasonic tomographic image. It has become.
The capsule image processing unit 43 performs image signal processing based on the encoder signal from the rotation driving unit 22 after A / D conversion processing is performed on the echo signal extracted by the filter 42. .

Next, the configuration of the capsule control unit 14 will be described with reference to FIG.
As shown in FIG. 4, the capsule side control unit 14 includes an ultrasonic control unit 51, a rotation drive control unit 52, and a pulse direct amplifier circuit 53 as a drive pulse generation unit.

  The ultrasonic control unit 51 controls each unit based on a reception signal from the capsule-side transmission / reception unit 15. The ultrasonic control unit 51 controls the ultrasonic unit 11 and the capsule-side signal processing unit 12 according to the encoder signal from the rotation driving unit 22.

  More specifically, the ultrasonic control unit 51 outputs an image control signal to the capsule side image processing unit 43 of the capsule side signal processing unit 12 in accordance with an encoder signal from the rotation driving unit 22. The capsule image processing unit 43 is controlled to execute image signal processing. The ultrasound control unit 51 outputs the image signal generated by the capsule side image processing unit to the ultrasound observation apparatus 3 via the capsule side antenna 16 by outputting the capsule side transmission / reception unit 15.

Further, the ultrasonic control unit 51 controls the rotation drive control unit 52 and the pulse direct amplifier circuit 53 according to the encoder signal from the rotation drive unit 22, so that the rotation drive unit 22 and the ultrasonic wave are controlled. The vibrator 21 is controlled.
The ultrasonic control unit 51 generates a synchronization signal from the encoder signal from the rotation drive unit 22 and outputs the synchronization signal to the rotation drive control unit 52. On the other hand, the ultrasonic control unit 51 generates a pulse timing signal from the encoder signal from the rotation driving unit 22 as a pulse timing signal generation unit, and outputs the pulse timing signal to the pulse direct amplifier circuit 53.

The rotational drive control unit 52 generates a drive signal for rotationally driving the rotational drive unit 22 by superimposing the synchronization signal from the ultrasonic control unit 51 on the supply voltage from the in-capsule power supply unit 13; An output is made to the rotation drive unit 22.
The pulse direct amplifier circuit 53 superimposes the pulse timing signal from the ultrasonic control unit 51 on the supply voltage from the in-capsule power supply unit 13 and directly boosts the superimposed signal to drive the ultrasonic transducer 21. It is configured to output a pulse signal.

As shown in FIG. 5, the pulse direct amplifier circuit 53 includes a superimposing circuit 61 as a superimposing unit and a boosting circuit 62 as a boosting unit.
The superimposing circuit 61 is configured by a switching IC such as an FET (field drop transistor) or a bipolar transistor, and receives a supply voltage from the in-capsule power supply unit 13 and a pulse timing signal from the ultrasonic control unit 51. Then, the pulse timing signal from the ultrasonic control unit 51 is superimposed on the supply voltage (3,4 V DC voltage) from the in-capsule power supply unit 13, and this superimposed signal is output to the booster circuit 62. ing.
The booster circuit 62 boosts the superimposed signal from the superimposing circuit 61 to, for example, approximately 150 V to generate a drive pulse signal, and outputs the generated drive pulse signal to the ultrasonic transducer 21. .

In the capsule ultrasonic diagnostic apparatus 1 configured as described above, an ultrasonic diagnostic capsule 2 is swallowed by a subject and introduced into a body cavity, and ultrasonic observation is performed.
The capsule ultrasonic diagnostic apparatus 1 starts ultrasonic observation when the ultrasonic diagnostic capsule 2 places the power source 13 in the capsule in the power supply state in the body cavity.

  The ultrasonic diagnostic capsule 2 drives the ultrasonic transducer 21 by outputting a drive pulse signal from the capsule-side control unit 14. The ultrasonic transducer 21 vibrates ultrasonically with a drive pulse signal, repeatedly transmits ultrasonic pulses, and receives echo signals of ultrasonic pulses reflected from the living tissue.

Simultaneously with the transmission / reception of the ultrasonic pulse, the ultrasonic diagnostic capsule 2 outputs a drive signal from the capsule-side control unit 14 to drive the rotation drive unit 22 of the ultrasonic unit 11, and the ultrasonic transducer 21. Rotating drive.
As a result, in the ultrasonic diagnostic capsule 2, the ultrasonic transducer 21 transmits and receives ultrasonic pulses and performs radial scanning to obtain an echo signal from the living tissue. This echo signal is transmitted to the capsule side signal processing unit 12.

  The capsule side signal processing unit 12 amplifies the echo signal from the ultrasonic transducer 21 by the amplifier 41, removes a high-band frequency signal by the filter 42, and uses the capsule side image processing unit 43 to generate an image. The processed image signal is output. The capsule side signal processing unit 12 outputs the image signal processed by the capsule side image processing unit 43 to the capsule side transmission / reception unit 15 via the capsule side control unit 14.

The capsule side transmitting / receiving unit 15 converts the image signal into a communication signal based on a general-purpose wireless communication standard, and transmits the image signal as a radio wave by the capsule side antenna 16. The ultrasonic observation apparatus 3 receives radio waves from the ultrasonic diagnostic capsule 2 from the apparatus-side antenna 31 and performs reception processing by the apparatus-side transmission / reception unit 32.
The device-side transmitting / receiving unit 32 efficiently amplifies a target frequency band with respect to a signal received from the device-side antenna 31, extracts and demodulates a modulated / demodulated signal, and outputs an image signal. The image signal from the device side transmission / reception unit 32 is subjected to signal processing by the device side signal processing unit 33. The device-side signal processing unit 33 performs A / D conversion processing on the image signal from the device-side transmission / reception unit 32 and outputs it to the device-side control unit 34.

The device-side control unit 34 outputs the image signal subjected to signal processing by the device-side signal processing unit 33 to the image processing unit 35. Further, the apparatus-side control unit 34 controls the image processing unit 35 based on the operation information input from the operation input unit 37 to perform image processing as desired by the operator.
The image processing unit 35 performs image processing on an image signal input via the device-side control unit 34 to generate a standard video signal, and outputs the generated video signal to the monitor 36 for display. An ultrasonic tomographic image is displayed on the screen. The operator makes a diagnosis while viewing the ultrasonic tomographic image displayed on the display screen of the monitor 36.

When driving the ultrasonic transducer 21, the capsule-side control unit 14 outputs a pulse timing signal from the ultrasonic control unit 51 to the pulse direct amplifier circuit 53 based on an echo signal from the rotation driving unit 22. .
The pulse direct amplifier circuit 53 superimposes the pulse timing signal from the ultrasonic control unit 51 on the supply voltage (3, 4V DC voltage) from the in-capsule power supply unit 13 by the superimposing circuit 61, and this superimposing circuit. The superimposed signal from 61 is boosted to, for example, approximately 150 V by the booster circuit 62 to generate a drive pulse signal, and this drive pulse signal is output to the ultrasonic transducer 21.

  At this time, the supply voltage output from the in-capsule power supply unit 13 is a solid line in FIG. 6 and the pulse timing signal output from the ultrasonic control unit 51 is a solid line in FIG. The drive pulse signal is a waveform represented by a broken line in FIG. Thereby, the pulse direct amplifier circuit 53 can generate a drive pulse signal for driving the ultrasonic transducer 21 in synchronization with the encoder signal of the rotation drive unit 22.

  The pulse direct amplifier circuit 53 directly boosts the pulse voltage after superimposing the pulse timing signal from the ultrasonic control unit 51 on the supply voltage from the intracapsule power supply unit 13. For this reason, the pulse direct amplifier circuit 53 does not need to use high withstand voltage components for the superimposing circuit 61 and the booster circuit 62, and can be configured with low withstand voltage components. Further, for the same reason, the pulse direct amplifier circuit 53 does not need to be provided with the switching unit 101 and the rectifying / smoothing unit 103 as compared with the conventional driving pulse generating unit 100 described above, and the superimposing circuit 61 and the boosting circuit 62 are not provided. Therefore, the number of parts can be reduced, the circuit configuration can be simplified correspondingly, and the power consumption can be reduced. Further, since the pulse direct amplifier circuit 53 may be low in power so as to reduce power consumption, the booster circuit 62 can be made small.

As a result, the ultrasonic diagnostic capsule 2 of the present embodiment can be reduced in power consumption and reduced in size with a simple configuration. Therefore, the ultrasonic diagnostic capsule 2 of the present embodiment can reduce the number of parts, reduce the cost, and reduce the power consumption.
Thereby, the ultrasonic diagnostic capsule 2 of the present embodiment can reduce the size of the built-in battery and extend the operating time, and can be further reduced in size.

  The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the invention.

[Appendix]
According to the embodiment of the present invention described in detail above, the following configuration can be obtained.
(Additional item 1)
Ultrasound that can be introduced into a body cavity, including an ultrasonic transducer that transmits and receives an ultrasonic pulse for acquiring an ultrasonic tomographic image, and a voltage supply unit that supplies a voltage for driving the ultrasonic transducer An ultrasound diagnostic capsule,
A superposition signal is generated by superimposing a pulse timing signal for driving the ultrasonic vibrator on a supply voltage supplied from the voltage supply unit, and the generated superposition signal is directly boosted to the ultrasonic vibrator. A capsule for ultrasonic diagnosis, comprising a drive pulse generator for outputting a drive pulse signal.

(Appendix 2)
The drive pulse generator includes a superimposing unit that superimposes a pulse timing signal for driving the ultrasonic transducer on a supply voltage from the voltage supply unit, and a boosting unit that directly boosts the superimposed signal generated by the superimposing unit. The capsule for ultrasonic diagnosis according to additional item 1, characterized by comprising:

(Additional Item 3)
Ultrasound that can be introduced into a body cavity, including an ultrasonic transducer that transmits and receives an ultrasonic pulse for acquiring an ultrasonic tomographic image, and a voltage supply unit that supplies a voltage for driving the ultrasonic transducer An ultrasound diagnostic capsule,
A pulse timing signal generator for generating a pulse timing signal for driving the ultrasonic transducer;
The superimposed timing is generated by superimposing the pulse timing signal generated by the pulse timing signal generation unit on the supply voltage supplied from the voltage supply unit, and the generated superimposed signal is directly boosted to generate the drive pulse signal. A drive pulse generator;
A capsule for ultrasonic diagnosis, comprising:

  The ultrasonic diagnostic capsule of the present invention can reduce the power consumption and can be configured in a small size with a simple configuration, so that an ultrasonic tomographic image can be obtained at a site such as the small intestine where an ultrasonic endoscope or an ultrasonic probe is difficult to reach. Suitable for getting.

1 is an overall configuration diagram showing a capsule-type ultrasonic diagnostic apparatus of Example 1. FIG. It is a block diagram which shows the circuit structure of the capsule type ultrasound diagnosing device of FIG. It is a block diagram which shows the structure of the capsule side signal processing part of FIG. It is a block diagram which shows the structure of the capsule side control part of FIG. FIG. 5 is a block diagram showing a configuration of the pulse direct amplifier circuit of FIG. 4. It is a graph which shows the DC voltage in the pulse direct amplifier circuit of FIG. 6 is a graph showing a pulse timing signal and a drive pulse signal in the pulse direct amplifier circuit of FIG. 5. It is a circuit block diagram which shows the drive pulse production | generation part used for the conventional ultrasonic diagnostic apparatus. It is a graph which shows the DC voltage in the drive pulse production | generation part of FIG. It is a graph which shows the pulse timing signal and drive pulse signal in the drive pulse production | generation part of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Capsule type ultrasonic diagnostic apparatus 2 Ultrasound diagnostic capsule 3 Ultrasound observation apparatus 11 Ultrasound part 12 Capsule side signal processing part 13 Capsule side power supply part 14 Capsule side control part 15 Capsule side transmission / reception part 16 Capsule side antenna 21 Ultrasound Vibrator 22 Rotation drive unit 51 Ultrasonic control unit 52 Rotation drive control unit 53 Pulse direct amplifier circuit 61 Superposition circuit 62 Booster circuit

Claims (2)

Ultrasound that can be introduced into a body cavity, including an ultrasonic transducer that transmits and receives an ultrasonic pulse for acquiring an ultrasonic tomographic image, and a voltage supply unit that supplies a voltage for driving the ultrasonic transducer An ultrasound diagnostic capsule,
A superposition signal is generated by superimposing a pulse timing signal for driving the ultrasonic vibrator on a supply voltage supplied from the voltage supply unit, and the generated superposition signal is directly boosted to the ultrasonic vibrator. A capsule for ultrasonic diagnosis, comprising a drive pulse generator for outputting a drive pulse signal. The drive pulse generator includes a superimposing unit that superimposes a pulse timing signal for driving the ultrasonic transducer on a supply voltage from the voltage supply unit, and a boosting unit that directly boosts the superimposed signal generated by the superimposing unit. The ultrasonic diagnostic capsule according to claim 1, further comprising: a portion.

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