JP3425785B2 - Jig for mounting balloon for ultrasonic diagnostic equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ultrasonic diagnostic apparatus used when mounting a balloon used in an ultrasonic diagnostic apparatus having an ultrasonic transducer at the tip of an insertion portion to be inserted into a body cavity. Related to a jig for mounting a balloon.

[0002]

2. Description of the Related Art As a jig used for mounting a balloon on an ultrasonic diagnostic apparatus in a body cavity, there is a jig for mounting a balloon for an ultrasonic diagnostic apparatus, which uses a cylinder having a diameter larger than that of an insertion portion which is a mounting portion. . A general method for mounting a balloon on an ultrasonic diagnostic apparatus in a body cavity is to first flip over a part of the O-ring of the balloon and hook it on the cylindrical part of the mounting jig, and then hold down this part to fix the other part of the balloon. Spread the part and attach it to the cylindrical part of the mounting jig. Then, in this state, the insertion portion is pushed into the attachment jig, and the O-ring of the balloon is dropped into the balloon attachment groove of the insertion portion to be attached.

Further, looking at the method of mounting the balloon which has been proposed so far on the scope which is an ultrasonic diagnostic apparatus, for example, in Japanese Utility Model Publication No. 4-51778, the mounting jig which is closed at one end is closed. A vacuum pump is installed, and a balloon whose only one end is closed is mounted on the mounting jig, and then the air between the inner surface of the jig and the outer surface of the balloon is evacuated by the vacuum pump and the balloon is attached to the scope. Attach to. Next, the balloon is uniformly attached to the distal end of the scope by returning to normal pressure.

[0004]

However, the method of mounting the balloon on the distal end of the scope by using the cylindrical mounting jig as in the above-mentioned conventional example is easy in mounting itself, but the balloon in the previous stage is used. It is not easy to attach the to the mounting jig. That is, it is difficult to mount the balloon because the diameter of the cylindrical portion of the balloon mounting jig does not change.

The present invention is proposed in order to solve the above-mentioned problems, and provides a jig for mounting a balloon for an ultrasonic diagnostic apparatus, which can efficiently and easily mount the balloon on the distal end portion of the insertion portion. This is the purpose.

[0006]

SUMMARY OF THE INVENTION The present invention is for achieving the above object, and is intended for mounting a balloon having an opening and an O-ring for fastening an insertion portion at least at one end thereof on an ultrasonic diagnostic apparatus. In a jig for mounting a balloon for an ultrasonic diagnostic apparatus to be used, a cylindrical main body having an inner diameter larger than the diameter of the distal end portion of the insertion portion of the ultrasonic diagnostic apparatus, and a deformable bore disposed inside the main body. A balloon mounting part made of an elastic body for mounting the opening part of the balloon to the tip part of the insertion part of the ultrasonic diagnostic apparatus, and connected to the balloon mounting part, along the outer surface of the main body. And a lever for changing the diameter of the balloon mounting portion by moving the same.

[0007]

When the balloon mounting jig for an ultrasonic diagnostic apparatus of the present invention is used for mounting a balloon having an opening and an O-ring for fastening the insertion portion at least at one end, the mounting jig is used. Is a cylindrical body having an inner diameter larger than the diameter of the tip of the insertion portion of the ultrasonic diagnostic apparatus, and the opening of the balloon having a deformable diameter is attached to the tip of the insertion portion of the ultrasonic diagnostic apparatus. Since the balloon mounting portion made of an elastic body for being disposed is arranged, by moving the lever connected to the balloon mounting portion and changing the diameter of the balloon mounting portion along the outer surface of the main body, The balloon can be easily attached to the attachment jig, and the balloon attachment work to the distal end of the insertion portion can be performed efficiently and smoothly.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show a first embodiment of the present invention, in which FIG. 1 is a perspective view (A) of a mounting jig,
It is a development view (B) of the mounting jig elastic part, and an enlarged plan view (C) of the mounting jig elastic part. 2 is a front view of the balloons (A, B), a cross-sectional view (C) parallel to the axial direction of the mounting jig, and a plan view (D) of the mounting jig.

As shown in FIG. 1A, the main body 1 of the mounting jig is a cylinder having an inner diameter larger than the diameter of the tip of the insertion portion of the ultrasonic diagnostic apparatus (not shown). Similarly, the balloon mounting portion 2 having an inner diameter larger than the diameter of the distal end portion of the insertion portion is provided by being rolled into a cylindrical shape. This balloon mounting portion 2 is a substantially rectangular plate-shaped elastic body 3 as shown in FIG. 1B when expanded, and has a lever 4 attached to its end and from the opposite end corresponding to the lever 4 attachment position. A notch 5 is formed so that the lever 4 can be engaged with the notch 5.

A part of the balloon mounting portion 2 is fixedly attached to the main body 1 (FIG. 1A), but when the elastic body 3 is expanded into a cylindrical shape in the main body 1 to the maximum extent, both ends of the elastic body 3 are accommodated. The oblique cut surfaces 6 are joined to each other as shown in the plan view of FIG. 1C. When the state shown in FIG. 1B is rolled as shown in FIG. 1A, the lever 4 projects outward from the notch 5.

FIG. 2A shows a single-opening balloon 7 of the balloons to be attached, and 8 is an opening. Figure 2B
Shows a double-ended opening balloon 9, and a large opening 10
It has a and a small opening 10b. Further, as shown in FIG. 2C, the outer diameter of the elastic body 3 is formed to be slightly larger than the diameter of the opening 8 of the one-sided opening balloon 7 or the large opening 10a of the both-sided opening balloon 9 in a natural state. is there.

Then, as shown in FIG. 2C, the opening 8 of the one-sided opening balloon 7 or the large opening 10a of the two-sided opening balloon 9 is turned upside down and hooked and attached to the opening 3a of the elastic body 3. Next, as shown in FIG. 2D, the diameter of the elastic body 3 is increased by moving the lever 4 of the elastic body 3 in the arrow direction. In this way, when the diameter of the elastic body 3 is maximized, the elastic body 3 with the balloon attached is
Has a larger diameter than the diameter of the tip of the insertion portion. The elastic body 3 in this state is fixed in a state where the end portions are joined to the oblique cut surface 6 as shown in FIG. 1C. Therefore, the balloon mounting portion 2 is provided with the balloon opening 8 or the large opening 10a at the balloon mounting portion at the tip of the insertion portion.
While turning it over, remove it and put it on. As described above, according to the first embodiment, the work of mounting the balloon on the balloon mounting portion 2 is facilitated, and the work of mounting the balloon on the distal end portion of the insertion portion is also facilitated.

FIG. 3 shows a second embodiment, in which parts corresponding to those in the first embodiment are designated by the same reference numerals. In the second embodiment, the diameter of the elastic body 3 is formed to be larger than the diameter of the tip of the insertion portion in a natural state. And
When attaching the balloon to the mounting portion 2, first, the lever 4 is rotated in the direction of the arrow to reduce the diameter. Other configurations are similar to those of the first embodiment. With this configuration, the same effect as that of the above-described embodiment can be expected, and since the diameter of the elastic body 3 is reduced to mount the balloon, the mounting of the balloon on the elastic body 3 is further improved. It will be easy.

FIG. 4 shows a third embodiment of the present invention, in which a ring-shaped elastic body 12 having a diameter slightly smaller than the opening diameter of the balloon is provided inside a cylindrical main body 11. It is attached to the main body 11 via a tip portion 13 formed by bending the portion in a right angle direction and further bending the tip in a right angle direction. One of the above-mentioned tip portions 13a is fixedly inserted into the main body 11. The other tip portion functions as a lever 13b and is slidably engaged with a circumferential groove 14 formed in the main body 11.

With this structure, the lever 1
By moving 3b in the direction of the arrow, the diameter of the elastic body 12 can be changed with the tip portion 13a as a fulcrum. Therefore, when the diameter of the elastic body 12 is larger than the diameter of the tip of the insertion portion in the natural state, the lever 13b is moved rightward in the drawing to reduce the diameter of the elastic body 13b. Then, the balloon can be easily attached to the attachment jig. On the other hand, when the diameter of the elastic body 13b is slightly smaller than the opening diameter of the balloon in the natural state, the balloon can be easily attached to the mounting jig as it is, and if the lever 13b is moved leftward in the drawing, the elastic body is elastic. Since the diameter of the body 12 is large, the balloon can be easily attached to the tip of the insertion portion.

FIG. 5 shows a fourth embodiment of the present invention. The elastic body 15 of the mounting jig is divided into strips so as to form a cylinder, leaving the base end 15a, and the tip thereof. The diameter is configured to be larger than the diameter of the distal end portion of the insertion portion. A ring 16 having an inner diameter slightly larger than the outer diameter of the base end 15a is fitted into the base end 15a of the elastic body 15, and a stopper 17 for preventing the ring 16 from falling off is fixed to the base end 15a. With such a configuration, when the ring 16 is moved to the strip portion of the elastic body 15, the diameter of the elastic body 15 becomes small and the balloon can be easily attached to the attachment jig. In addition, the ring 16 is replaced by the elastic body 1.
When the strip portion of No. 5 is moved to the stopper 17 side, the aperture of the strip portion of the elastic body 15 widens, so that the attached balloon can be easily attached to the tip of the insertion portion.

FIG. 6 shows a balloon attached to the distal end of the insertion portion by using the mounting jig according to the present invention.
Is a front view and FIG. 6B is a central sectional view. As shown in FIG. 6B, in the balloon, thick-walled portions 18 and thin-walled portions 19 are alternately formed at equal intervals in the circumferential direction. In general, many balloons have a uniform wall thickness and a shape that is not cylindrical and is easy to observe when inflated, as disclosed in, for example, JP-A-61-16833. However, in such a balloon, when the length of the tip of the insertion portion is longer than the diameter of the tip portion, if the shape when the balloon is deflated is formed to be almost the same as the shape of the tip of the insertion portion, the thickness is uniform. It expands axially when expanded. On the contrary, if the balloon is inflated, it becomes too short when the balloon is deflated and cannot be inserted into the tip of the insertion portion.

Therefore, when the balloon is formed as shown in FIG. 6, when the balloon is inflated, the thick portion 18 is less likely to be deformed, whereas the thin portion 19 is easily deformed, so that it is difficult to extend in the central axis direction. It can be easily deformed in the radial direction,
The problems as shown in the above conventional example can be solved.

FIG. 7 shows another embodiment of the balloon. FIG. 7A is a front view and FIG. 7B is a central sectional view. In this example, wrinkles 20 were formed at equal intervals in the circumferential direction so that the balloon could extend in the circumferential direction when the balloon was inflated. Therefore, although it is difficult to expand in the central axis direction, it is easily deformed in the radial direction, and the problems as described in the conventional example can be solved.

FIG. 8 shows a modification of the balloon shown in FIG. 7, of which FIG. 8A is a front view and FIG. 8B is a central sectional view. In this embodiment, wrinkles 21 are formed at equal intervals in a part of the circumferential direction, and when the balloon is inflated, only part of the balloon in the circumferential direction is extended more than other parts.

FIG. 9 shows a cross section of the distal end portion of the insertion portion of the ultrasonic diagnostic apparatus equipped with a balloon. An ultrasonic probe 22 is arranged at the tip of the insertion portion, and the ultrasonic probe 22 is rotatable in the axial direction by a driving device (not shown). Further, the periphery of the ultrasonic probe 22 is covered with a tip cap 23 having a window 23a, the tip cap 23 is covered with a balloon 24, and the tip cap 23 is filled with an ultrasonic transmission medium 25. Further, a liquid feeding conduit 26 for feeding the ultrasonic transmission medium 25 into the distal end cap 23 and a suction conduit 27 for sucking the ultrasonic transmission medium 25 are guided to the distal end portion of the insertion portion.

When the ultrasonic transmission medium 25 is fed into the distal end cap 23 at the distal end portion of the insertion portion of the ultrasonic diagnostic apparatus constructed as above, the ultrasonic transmission medium 25 is further passed through the window 23a of the distal end cap 23. It is fed into the balloon 24 and inflates the balloon 24. On the other hand, the ultrasonic transmission medium 2 is passed through the suction conduit 27 by a suction device (not shown).
When 5 is sucked, the ultrasonic transmission medium 25 in the balloon 24 is sucked through the window 23a of the tip cap 23, and the balloon 24 is deflated. Therefore, when the ultrasonic diagnostic apparatus is used, if the balloon 24 is used at the same time, even if bubbles are generated in the delivered ultrasonic wave transmission medium 25, the ultrasonic wave transmission medium 25 is repeatedly fed and sucked. By doing so, bubbles can be easily removed. Even when the balloon 24 is deflated, the balloon 24 does not become smaller than the tip cap 23. Therefore, even if the ultrasonic probe 22 is rotated, the balloon 24 is not caught and the mucous membrane inside the body cavity is not caught. The ultrasonic probe 22 will not damage it.

In this respect, in the conventional intracorporeal ultrasonic diagnostic apparatus, a balloon is attached as necessary during intracorporeal diagnosis, and an ultrasonic wave different from the ultrasonic transmission medium in the tip cap which has already been fed is used. The work involved infusing the delivery medium into the balloon to inflate and deflate the balloon.
Therefore, the air bubbles that have entered the balloon can be removed by repeating suction and liquid feeding of the ultrasonic transmission medium,
There was a problem that bubbles in the tip cap could not be removed. Such a problem can be solved by the ultrasonic diagnostic apparatus as shown in FIG.

FIG. 10 shows another embodiment of the ultrasonic diagnostic apparatus in which the structure of the tip cap is changed.
That is, in this embodiment, the peripheral side of the tip cap 23 is formed in a net shape, and the net portion 28 has a window 23 in FIG.
It is intended to fulfill the action of a.

11 to 13 show an embodiment in which a balloon sheath is attached using the attachment jig according to the present invention. The balloon sheath 29 mentioned here indicates the entire balloon 30, balloon mounting member 31, non-cornered balloon mounting step 32, and sheath 33 as shown in FIG.
When the balloon 30 is mounted by the balloon mounting jig, the balloon 30 is mounted on the balloon mounting member 31. However, since the balloon mounting step 32 provided at the end of the balloon mounting member 32 has no corners, the balloon 30 is not damaged.

In FIG. 12, the base of the sheath 33 is connected to the connector 34.
The state in which the sheath 33 is fixed to the connector 34 is fixed to the connector 34 via the tightening member 35, and the tightening member 35 is fixed to the connector 34 by the fixing member 36. Then, the fixing member 36 is attached to the connector 3
By being pushed into the groove 34a formed in 4, the tightening member 35 is pressed so as to collapse and acts to fix the sheath 33.

FIG. 13 shows a state in which the sheath 33 is detached from the connector 34, and the fixing member 36 is provided with perforations 37.
And a claw 36b is formed at the tip of a portion 36a surrounded by the perforations 37. Therefore, when removing the sheath 33 from the connector 34,
When the pawl 36b is pulled in the direction of the arrow, the perforation 37 breaks and the portion 36a surrounded by the perforation 37 falls off, and the fixing member 3
Since 6 is removed, the sheath 33 can be easily removed from the connector 34.

[0028]

As described above, the jig for mounting the balloon for the ultrasonic diagnostic apparatus of the present invention can be deformed inside the cylindrical main body having an inner diameter larger than the diameter of the tip of the insertion portion of the ultrasonic diagnostic apparatus. Since a balloon mounting portion made of an elastic body having a large diameter and for mounting the opening portion of the balloon at the distal end portion of the insertion portion of the ultrasonic diagnostic apparatus is provided, the balloon mounting portion is connected to the balloon mounting portion. By moving a lever that changes the diameter of the portion along the outer surface of the main body, a balloon having an opening and an O-ring for fastening the insertion portion at least at one end can be easily attached to the attachment jig. As a result, the work of attaching the balloon to the tip of the insertion portion can be performed efficiently and smoothly.

[Brief description of drawings]

FIG. 1 is a perspective view of a mounting jig according to a first embodiment of the present invention,
It is a development view of an elastic part and an enlarged plan view of an elastic part.

FIG. 2 is a front view of a balloon that is also mounted, a partial cross-sectional view of a mounting jig, and a plan view of the mounting jig.

FIG. 3 is a perspective view of a mounting jig according to a second embodiment of the present invention.

FIG. 4 is a perspective view of a mounting jig according to a third embodiment of the present invention.

FIG. 5 is a perspective view of a mounting jig according to a fourth embodiment of the present invention.

FIG. 6 is a front view and a central sectional view of the balloon.

FIG. 7 is a front view and a central sectional view of another balloon.

FIG. 8 is a front view and a central sectional view of another balloon.

FIG. 9 is a vertical cross-sectional view of the distal end portion of the insertion portion of the ultrasonic diagnostic apparatus.

FIG. 10 is a perspective view of a distal end portion of an insertion portion of another ultrasonic diagnostic apparatus.

FIG. 11 is an explanatory diagram showing a state in which a balloon sheath is attached to the ultrasonic diagnostic apparatus.

FIG. 12 is an explanatory diagram showing a state in which a balloon sheath is attached to the ultrasonic diagnostic apparatus.

FIG. 13 is an explanatory diagram showing a state in which a balloon sheath is attached to the ultrasonic diagnostic apparatus.

[Explanation of symbols]

1 body 2 Balloon mounting part 3 elastic body 4 levers 5 notches 6 cut surface

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Claims (2)

(57) [Claims] 1. A balloon mounting jig for an ultrasonic diagnostic apparatus, which is used when mounting a balloon having an opening and an O-ring for tightening an insertion portion at least at one end thereof, to the ultrasonic diagnostic apparatus. A cylindrical main body having an inner diameter larger than the diameter of the distal end of the insertion portion of the device, a deformable diameter disposed inside the main body, and the opening portion of the balloon is inserted into the insertion portion of the ultrasonic diagnostic device. A balloon mounting part made of an elastic body for mounting on the tip part, and a lever connected to the balloon mounting part and changing the diameter of the balloon mounting part by moving along the outer surface of the main body. A jig for mounting a balloon for an ultrasonic diagnostic apparatus, characterized in that 2. The jig for mounting a balloon for an ultrasonic diagnostic apparatus according to claim 1, wherein the balloon mounting portion is formed of a plate-shaped elastic body that is rolled into a cylindrical shape and housed inside the main body. .