JPS59171538A - Endoscopic ultrasonic diagnostic apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to an ultrasonic diagnostic apparatus, and particularly to an ultrasonic diagnostic apparatus for wedding ceremonies.

[Prior art]

Conventional ultrasonic diagnostic apparatuses are mainly intended for diagnosis from outside the body, and there is a limit to the sound available for ultrasonic diagnosis of the gastrointestinal system such as the stomach and duodenum.

For this reason, endoscopic ultrasonic diagnostic devices that attempt to diagnose from inside the body have been developed and used, and their use is attracting attention.

Hereinafter, the configuration of a conventional ultrasonic diagnostic apparatus used in the past is shown in FIG. 1, and the structure of an ultrasonic transducer is shown in FIG. 2.

In Figure 1, 1 is a synchronous oscillation circuit, 2 is an excitation circuit, and 3 is a synchronous oscillation circuit.
4 is an endoscope, 4 is a scanning means, 5 is a function generation circuit, 6 is a cathode ray tube, 7 is an amplifier circuit, and 8 is a brightness modulation circuit.

The pulse output of the synchronous oscillation circuit 1 is converted into a high frequency pulse and a pulse with a steep rise by an excitation circuit 2 for generating ultrasonic pulses, and then passes through the inner hole of the endoscope 3 and is installed in the scanning means 4. applied to the oscillator. On the other hand, the output of the synchronous oscillation circuit 1 passes through the inner hole of the endoscope 3 and is applied to the pulse motor shown in FIG. can scan inside the body.

The electrical signals transmitted to the scanning means 4 and the vibrator pass through the inner hole of the endoscope 3, thereby allowing the endoscope 3 to be inserted into the body more smoothly. In order to display the image in a manner consistent with the direction of the ultrasonic waves emitted into the body from the vibrator built in the ski-yanning means 4, the pulse output of the synchronous oscillation circuit 1 is converted into a waveform by the function generation circuit 5 and then sent to the cathode ray tube 6. The propagation direction of the ultrasonic waves applied to the x and y electrodes is displayed as an image. Ultrasonic waves reflected from abnormal tissue within the body are amplified by an amplifier circuit 7, passed through a brightness modulation circuit 8, and displayed on a cathode ray tube 6 as a tomographic image.

FIG. 2 shows an embodiment of the mechanical scanning means for the vibrator 15 in this device. 3 is an endoscope, 9 is an autopsy window,
10 is an inner hole, 11 is a pulse motor, 12 is a micro gearhead, 13 is a rotating shaft, 14 is a damper, 15 is a vibrator,
16 is the drive line of the pulse motor, 17 is the excitation line of the camera element,
Reference numeral 18 indicates a rotating shaft support plate, and reference numeral 19 indicates a case.

The outputs of the synchronous oscillation circuit and the excitation circuit in FIG. Drive line 16 and excitation line 17
The signal is transmitted to the pulse motor 11 and the vibrator 15 by. The pulse motor 11 is fixed to the endoscope 3 and rotates at an angle corresponding to the number of output pulses of the synchronous oscillation circuit 1 shown in FIG.
The speed is reduced to a minute rotation angle by the micro gearhead 12.

The rotational force of the microhead 12 is transmitted to the damper 14 by the rotating shaft 13, and as the damper 14 rotates, ultrasonic waves are radiated into the body from the vibrator 15 bonded to the damper 14.

This can be easily done by inserting the endoscope with the above configuration into the body and performing visual inspection through the autopsy window to determine the diagnosis site, and placing the ultrasonic transducer in close contact with it. In the case of a funeral ceremony using ultrasound, the transducer emits ultrasound with the transducer in close contact with the autopsy site within the body, which allows the ultrasound to propagate into the body without attenuation, resulting in a clear image.

However, it is extremely difficult to insert the transducer into the body and bring the transducer surface, which emits ultrasonic waves, into close contact with the autopsy site on the inner wall of the stomach, for example, using operations from outside the body. This is a difficult thing to do.

To solve this problem, a commonly used method is to wrap the outside of the vibrator part of the congratulatory ultrasound device with a balloon 2o as shown in Figure 3, and to transmit ultrasonic waves from outside the body into the balloon 20. The balloon 20 is inflated by injecting a medium 21, such as water or olive oil, which propagates into the balloon 20.
is brought into close contact with the stomach wall 21'. When ultrasonic waves are emitted from the transducer 15 in this state, the ultrasonic waves propagate within the medium 21, reach the stomach wall, further propagate into the body, and then the reflected sound waves inside the body pass through the medium 21 again and are photographed. Return to Moko 15.

The congratulatory ultrasonic device having such a configuration has the following problems. It is a wall of balloons 20 and a vibrator 1
Multiple imaging of the ultrasonic waves emitted between the two images occurs, which poses a problem in creating images.

[Purpose of the invention]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, it is an object of the present invention to provide an ultrasonic device for congratulations in which an ultrasonic wave emitting section can be brought into close contact with an autopsy site.

[Synopsis of the invention]

The present invention is characterized in that a balloon is provided on the back of the internal chain so that the ultrasonic emitting section can be easily brought into close contact with the autopsy site.

[Embodiments of the invention]

FIG. 4 is a diagram showing the configuration of an uninvented embodiment, and FIG. 4(a) is a sectional view taken along the line AA' in FIG. 4(b). In the figure, a plurality of balloons 22 are attached to the back of a case 19 of the ultrasonic emitting unit, and each balloon 22 has a conduit 23 attached thereto and communicates with the outside of the body.

Therefore, by injecting gas or liquid into the balloon 22 through this conduit 23 and inflating the balloon, the case 19 is pressed against the autopsy site, and the vibrator 15 is brought into close contact with the wall of the internal organ, resulting in this state. When the ultrasonic waves are emitted, the ultrasonic waves can be propagated efficiently into the body, and the image quality due to multiple reflections is better than the conventional method in which the ultrasonic waves are propagated by inflating the balloon 20 with the medium 21. Deterioration can be prevented.

By providing a plurality of balloons 22, as shown in FIG. 5, by adjusting the degree of inflation of each balloon 22, it is possible to stably support the case by increasing the number of fulcrums that support the case. .

Furthermore, when the autopsy area is the esophagus or trachea, the balloon 20 is inflated to fill the esophagus or trachea in the conventional method described in FIG. However, according to the present invention, such problems can be eliminated.

In the present invention, further effects can be achieved by adding the following means.

In other words, the size of the balloon to be attached is changed depending on the location of the autopsy.

For example, when diagnosing the stomach wall, a large balloon that can inflate completely inside the stomach is required, but if the balloon is left as it is,
When attempting to diagnose the inside of the duodenum, etc., if a large balloon is attached, the balloon will get in the way, making it difficult to insert the ultrasonic wave emitting part into the fine details.

As a way to solve this problem (d1), prepare a plurality of balloons of different shapes and attach balloons of the appropriate size depending on the target area.

The configuration of another embodiment of the present invention will be described below with reference to the figures.

FIG. 6 shows a state in which a groove 24 is provided to attach the balloon 22 to the case 19, and FIG. 6(a) shows a cross section taken along line AA' in FIG. 6(b). In this installation, a plate 25 is inserted into the groove 24 in the structure shown in FIG. 7(a). Figure 7(a) shows the A-A' cross section of Figure 7(b), and in this installation, the balloon 22 is attached to the plate 25, so the extra issue is attached to the case 19. In this state, the configuration is as shown in FIG.

FIG. 8(a) shows the ML with a small balloon 22 attached, and FIG. 8(b) shows the state with a large balloon 22 attached. Note that the dotted line in the figure indicates the balloon's inflated state.

By selecting the size of the balloon according to the diagnosis site in this way, the ultrasound generating part can always be stably brought into close contact with the diagnosis site.

In addition, above we have described the method of gluing the attachment strip to the l'i balloon and inserting the plate into the groove provided in the case.
As an alternative method, the same effect can be obtained by attaching the plate and the case using a magnet, and the balloon can be easily attached and detached.

〔Effect of the invention〕

As described above, according to the present invention, it is possible to always stably bring the ultrasonic wave generating section into close contact with the inseminated site, and the ultrasonic waves can be efficiently propagated into the body.

[Brief explanation of the drawing]

Figures 1 and 2 are diagrams showing the configuration and details of the ultrasonic generation part of a conventional ultrasound diagnostic device for family celebrations, Figure 3 is a diagram showing an example of the conventional ultrasound diagnostic equipment for family celebrations at the time of autopsy, and Figure 4 The figure shows one embodiment of the main part of the present invention, FIG. 5 is a diagram explaining its operating state, and FIGS. 6 and 7 are diagrams showing the configuration of other embodiments of the clasp of the present invention. , Fig. 8 is a diagram explaining its operating state.

Claims (1)

[Scope of Claim] In an ultrasonic diagnostic device configured to include an ultrasonic transmitter/receiver placed in a living body and a means for operating the ultrasonic transmitter/receiver at a position separated from the body, the 1. A congratulatory ultrasonic diagnostic apparatus characterized by having a support part made of a material whose shape can be controlled, and the support part being replaceable.