JPS5865148A - 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 The present invention relates to an ultrasonic diagnostic apparatus that can actually discharge gas within a balloon when supplying liquid into the balloon.

For example, when obtaining a tomographic image of the body cavity wall by providing an ultrasonic wave transmitting/receiving channel at the tip of the insertion section of an endoscope and scanning the ultrasonic waves, the L ultrasonic waves are transmitted through an air layer. Regarding scanning, it is possible to obtain a better tomographic image with less attenuation by scanning through an adult body.

Therefore, conventionally, the configurations shown in Figs. 1 and 2 have been used. That is, the head main body 2 is provided at the distal end of the insertion section J of the endoscope, and the distal end cap 3 of the head main body 2 is fitted.

An ultrasonic vibrator 5 is installed in the cap f3 and is attached to a flexible shaft 4 which is rotationally driven by an M drive source (not shown). Further, a supply passage 6 and a discharge passage 7 are bored in the upper body 2.

One end of the supply line 6 and the discharge line 7 is connected to the rear end surface of the head body 2, and a supply line 8 and a discharge line 9 are connected thereto. It is connected to the incision site, and the discharge pipe 9 is connected to a suction inlet (not shown).

Further, the other end of the supply path 6 and the discharge path 7 is connected to the head main body 2.
The openings at the other ends of the supply channel 6 and the discharge channel 7 and the circumferential surface of the cap 3 are made of elastic material such as rubber. It is supported by a balloon 10 made of a transparent material. After the liquid is supplied from the supply conduit 8 to the balloon 10 via the supply conduit 6, the balloon 10 is brought into contact with the body cavity wall to transmit ultrasonic waves. That is, the ultrasonic waves from the ultrasonic transducer 5 propagate through the liquid within the balloon 10 and scan the body cavity wall.

By the way, when supplying 4r of liquid into the balloon 10,
If the rC gas inside the balloon 10 is stored away, it will not be possible to obtain a good tomographic image, so when supplying liquid, the gas inside the balloon 10 is However, at this time, the balloon 10 may be sucked into the opening of the discharge passage 7 and block this opening, or the balloon 10 may be wrinkled as shown in FIG. The area covered by the balloon 10 may be separated into rooms corresponding to the number of grains of rice.In this case, the gas B is not reliably discharged from inside the balloon 10 and remains, so the ultrasonic waves generated by this gas B This results in a significant practical problem in that a good tomographic image cannot be obtained.

This invention was made based on the above-mentioned circumstances, and its purpose is to prevent the opening of the exhaust channel from being blocked by the balloon trap when discharging the gas inside the balloon, and to prevent gas from forming in the balloon. To provide an ultrasonic diagnostic device capable of reliably exhausting gas from each room even if a portion covered by a balloon is separated into a plurality of rooms due to wrinkles.

Hereinafter, one embodiment of the present invention will be explained with reference to FIGS. 3 to 5. In the figure, 11 is an endoscope. The endoscope 11 includes a push-in section 12, and a sub-operation section 13 and a main operation section 14 connected to the rear end of the intermediary section 12 in sequence. This main operation section 14 has terminal Vζ connectors 15 * e
A universal cord 15 having a length of 16 m and a signal cable 16 are connected. Universal code 1 above
The connector 15 of No. 5 is connected to the light source device, and the connector 16m of the @ cable 16 is connected to the power supply M (none of which are shown) K. In addition, the insertion portion 12d
A dome 19 is provided at the tip of the flexible portion 17 via a curved portion 18. As shown in FIG. 4, the head 19 consists of a head body 20 and a cap 21 fitted to the tip of the upper body 20. Inside this cap 2 is the above-mentioned -3 operation section! The tip of the arm shaft 22 protrudes and is rotatably driven by a drive source (not shown) housed in the connector 16 of the connector 16 of the good signal cable 16.
An ultrasonic transducer 23 that is electrically connected to a and transmits and receives ultrasonic waves is attached. In addition, a supply passage 24 and a discharge passage 25 are bored in the upper body 20, and a communication #l1 extending over the entire length in the circumferential direction is provided on the outer peripheral surface.
j26 is formed. The above supply path 24 and discharge path 25
One end opens at the rear end surface of the head body 2°, and a supply pipe 24a and a discharge pipe 25 are connected to these openings, respectively. The other end of the upper dpi supply path 24 opens at a portion of the outer peripheral surface of the head main body 20 where the communication h:it; It is open on the rear end surface side of the head main body 20 that rotates in the direction.゛Still, go, the outer surface of Do 19- is balloon 2.
It's stuck at 7. This balloon 27 is made of an elastic material such as rubber and has a pushing shaft of 8 m, and is made of a strong strip at the upper and lower ends.
1; It is formed into a cylindrical shape having I, and each - shaped part 2B,
'1 to the rear end th1 from the no communication 26 of the upper body 20
11Il is formed in the vicinity of the communication roar 26 on the outer peripheral surface of the first
It is tightly fitted into the engagement groove 29 of the character fix and the second fitting @SO formed on the outer periphery of the tip of the character fix. In other words, the balloon J2 opens to the outer periphery of the head body 20, and a friend's subfamily sweet 24, the discharge route 25 and the kiya, and F21.
The outer circumference IIIt-m is. Furthermore, there is a WAF (not shown) on the rear end side of the main body 20 exposed from the balloon 21.
A J8 window and an observation window are provided. Lighting window is insertion part 1
2 It is optically connected to a light guide (not shown) inserted through the universal cord Z5, and the observation window is connected to the main operation section 1.
The eyepiece 31 provided at the eyepiece 4 is optically connected to the eyepiece 31 via a guide.

Further, the supply pipe line 24a communicates with a liquid feeding port body 32 provided with a sub-operation 513K, and a liquid feeding cylinder (not shown) as a feeding machine is connected to this liquid feeding port L1 body 32. It is now possible to do so. Roughly speaking, the discharge conduit 25a is inserted through the insertion 812 and the universal cord 15 over the entire length thereof, and its end is communicated with the suction port body 33 of the universal cord 16, which is cut out from the connector 15*llCf1. A suction ponder (not shown) is connected to the suction port body 33 of the gun. In addition, the discharge pipe 25 & is connected to the suction operation valve 34 in the shaving operation section 13.
C1 By operating this suction operation valve 34, the suction force of the suction ponder connected to the suction port body 33 of the vacuum cleaner 151 is applied to the discharge pipe 25a.

Next, the operation of the above configuration will be explained.

First, insert the insertion part 2 of the endoscope into the body cavity,
When the head 19 reaches the target portion PCg, the curved portion 18
The upper iU head 19 is bent vertically as shown in FIG. Next, a liquid such as water or oil is supplied into the balloon 27 from the inlet port body 32 provided in the l&ll operating section 13 via the supply pipe line 24m and the supply line 24. Then, when a certain amount of liquid has accumulated in the balloon 27 and the gas in the balloon 21 is pushed up, the suction operation valve 34 is activated to move the υj mountain back road 25 mKIJBI.

Attractive force is generated to suction and discharge the gas inside the balloon 27 through the discharge path 25. At this time, a part of the balloon 21 is sucked into the discharge passage 25 which is opened on the outer M1 side Ilc of the main body 20, and the wrinkles formed on the balloon 27 cause the portion of the balloon 27 to be bent in the circumferential direction. However, since the discharge passage 25/d is opened at the bottom of the communication fk26 extending over almost the entire length of the outer peripheral surface of the head main body 25, the suction force is concentrated at this opening. It is dispersed throughout the communication groove 26 without being dispersed. Therefore, the discharge path 2
Since the balloon 22 is not adsorbed to the opening of the main body 20 and the opening is not blocked, the gas can be smoothly sucked and discharged, and the gas can be sucked and discharged through the communication groove 26 into the main body 20.
Since the suction force acts on the entire blade in the zero circumferential direction, the gas in the roof 2 is sucked and discharged at any position in the circumferential direction of the blade 19.

In addition, the discharge passage 25 opens at the rear of the head body 20 extending in one direction of the communication groove 26, that is, when the head body 20 is vertical, it opens at the upper part of the communication #$26 in the vertical direction. ,? & Meat or Renji Tori 26 #1 is the height K that covers the entire body
The gas inside the balloon 21 is suctioned and discharged from the discharge path 26 until the temperature reaches 100. That is, since the gas inside the balloon 27 is exhausted until the inside of the balloon 27 is filled with liquid, no gas remains in the upper part of the inside of the balloon 27.

FIG. 6 shows another embodiment 1j of the present invention, in which a plurality of recesses 35 communicating with the communication groove 26 are provided along the axial direction on the outer peripheral surface of the main body 20. The bottom surfaces of these recesses 35 are obliquely inclined so that they become gradually deeper toward the communication groove 26VC.

With this configuration, when the balloon 27 contracts and approaches the outer peripheral surface of the head body 20 so as to pass through the communication groove 26, the suction force generated in the communication groove 26 is transferred to the recess 35.
・Because it acts on the inside of the balloon 27 through
Even when 7 contracts, the bamboo can suction and discharge gas well.

Note that if the communication #1li26 is provided in a range of at least 180 degrees or more in the circumferential direction of the outer circumferential surface of the head body 2o, the gas in the balloon 27 can be surely sucked and discharged.

As described above, the present invention provides an ultra-i wave transmitting/receiving head in which a supply path and a discharge path are formed and is crested by a balloon. Since the 11 outlets of the above-mentioned discharge passages are formed in the communication grooves, when the gas inside the balloon is sucked and discharged through these discharge passages, the suction force is continuous! B
It is dispersed throughout the # and is not concentrated at the opening of the discharge channel. With this, the balloon will not be sucked in by this opening, so the gas inside the balloon can be suctioned and discharged smoothly, and the suction force is transferred through the communication groove in the circumferential direction of the do. Since it covers the entire area, gas can be sucked in and discharged from any part of the circumferential direction of the area.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view of a conventional ultrasonic diagnosis-1 mount, Figure 2 is a 111' plane view taken along the line n-1x@ in Figure 1, and Figure 3 is a further example of this invention. General view of Bossu Uchigi, m4-Fi
Similarly, Fig. 5 is a perspective view of the main part,
Figure 6 U is a perspective view of the soft part showing another example of this older brother,
Chiru. DESCRIPTION OF SYMBOLS 12... Insertion part, 19... Head, 24... Supply channel, 25... Exhaust channel, 26... Communication disease, 27...
Balloon, 35...4 parts. Applicant's agent Patent attorney Suzu Takehiko Figure 1/1 Figure 2 Figure 3

Claims (4)

[Claims] (1) When a head for ultrasonic sending with a supply path and a discharge path is formed therein, a balloon with both ends set at the end thereof is used, and liquid is supplied from the above-mentioned supply ayu inside this balloon. In an ultrasonic diagnostic apparatus in which the gas inside the balloon is discharged from the discharge passage, the head is provided with a communication groove extending almost the entire length in the circumferential direction near the fixed end of the balloon, and the communication groove is provided with the communication groove extending over the entire length of the balloon in the vicinity of the fixed end of the balloon. An ultrasonic diagnostic device characterized by an opening with a width. (2) The ultrasonic diagnostic apparatus according to claim 1, wherein the communication groove is provided over a range of 180 degrees or more in the circumferential direction of the grooves. (3) It is defined as mold that the communicating groove is connected to a concave portion which is inclined in the axial direction Jb of the outer periphery of the head and gradually becomes deeper toward the communicating groove.Claim 1 or the ultrasonic diagnostic device listed in Section 2 i. (4) The combined one-wave diagnostic device according to claim 11wJ11, or 2 or 3, characterized in that the head is provided at the distal end of the insertion portion of the endoscope.