JPH09238945A - Ultrasonic probe for puncturing body cavity - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve a lower cost and a higher utilization value of a small ultrasonic probe with a specified shape versatilely made for other applications by arranging the small ultrasonic probe at the tip part of an adaptor free to remove in a fitting relationship to make the ultrasonic probe common in use. SOLUTION: An adaptor 1 is so arranged to allow the inserting of the whole part on the tip side thereof into a body cavity of a subject except for a handle 1a part at the rear end thereof and has an ultrasonic probe 2 at the tip part thereof. The tip side of a puncture needle 5 with the rear end side thereof fixed on a slider 4a of a needle induction mechanism 4 is inserted into an induction pipe 3 on the top surface of the adaptor 1 and the length of protrusion of the tip part of the puncture needle 5 from the tip part 1b of the adaptor is made adjustable by the longitudinal positioning of the needle induction mechanism 4. At this point, the ultrasonic probe 2 employs a small ultrasonic probe and is detachably mounted at the tip part 1b of the adaptor 1 in a fitting relationship. The internal shape of a sunk part for inserting probes at the tip part 1b is made to match the external shape of the small ultrasonic probe 2 desired to be applied.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is suitable for puncturing a body cavity of a subject using an ultrasonic probe and a puncture needle, particularly for puncturing a body cavity of livestock animals such as cows and horses, mainly for vaginal puncture and egg collection of cattle. The present invention relates to an ultrasonic probe for body cavity puncture.

[0002]

2. Description of the Related Art This type of probe is provided with an ultrasonic probe at the tip of an adapter formed so that its tip side can be inserted into a body cavity of a subject, and a guide pipe provided in the adapter is provided with The tip side of the puncture needle whose rear end side is fixed to the slider of the needle guide mechanism is inserted, and the protrusion length of the puncture needle tip part from the adapter tip part can be adjusted by positioning the needle guide mechanism in the front-rear direction. Therefore, it is possible to puncture the observation target with the puncture needle while observing the ultrasonic tomographic image by the ultrasonic probe.

In this type of conventional probe, (1) a dedicated ultrasonic probe is fixed to the tip of the adapter. (2) Further, the needle guiding mechanism for adjusting the protruding length of the tip portion of the puncture needle from the tip portion of the adapter is configured as shown in FIG. That is, the needle guide mechanism 6 is provided with a guide groove (not shown) formed in the front-rear direction of the adapter, and is removably fitted in the guide groove so as to be slidable in the front-rear direction of the adapter, the needle insertion hole 6a1 and the screw hole. 6a2 is formed and the puncture needle 5 is inserted into the needle insertion hole 6a1 and then the screw 6a3 is screwed into the screw hole 6a2 with a tool such as a screwdriver to fix the puncture needle 5 in the needle insertion hole 6a1. 6a
The slider 6a is projected from the slider 6a, and the slider 6a can be moved in the guide groove in the guide longitudinal direction by pushing and pulling in the adapter longitudinal direction, and the puncture needle can be advanced and retracted while being inserted into the guide pipe. It was composed of a guide lever 6b. 6A is a front view, FIG. 6B is a side view, and FIG. 6C is a bottom view. (3) Further, the pipe for guiding the puncture needle (guide pipe) is integrally fixed to the adapter.

[0004]

The conventional ultrasonic probe for body cavity puncture has the following problems because it is constructed as described above. (1) The ultrasonic probe becomes expensive because a dedicated ultrasonic probe is used.

(2) Since the guide lever of the needle guide mechanism is constructed as shown in FIG. 6, it is troublesome to fix the puncture needle to the guide lever. Since the guide groove has a finite length and the guide lever also has a finite slide length in the adapter front-rear direction, the maximum protruding length of the puncture needle tip from the adapter tip can be fixed by temporarily fixing the puncture needle to the guide lever. If you do, you will be limited. In order to make the maximum protruding length longer, the screw fixing the puncture needle with a screwdriver or the like must be loosened, and when replacing the puncture needle, the screw must also be loosened with a screwdriver or the like. However, the operation for attaching / detaching the puncture needle to / from the guide lever and increasing the maximum protrusion length of the puncture needle was extremely troublesome, resulting in poor usability.

(3) Since the guide pipe of the puncture needle is integrally fixed to the adapter, the guide pipe cannot be disassembled and cleaned, and it is difficult to clean, disinfect, sterilize, etc. the guide pipe, which is the most contaminated part during puncturing. And also the adapter itself,
Alternatively, it is difficult to wash the mutual contact portion of the adapter and the guide pipe, and the guide pipe cannot be disposable, so that the usability in hygiene management is poor.

The object of the invention of claim 1 is to reduce the cost by sharing an ultrasonic probe to be used, and a small ultrasonic probe of a specific shape for other uses, particularly a convex ultrasonic probe of fingertip mounting type. Another object of the present invention is to provide an ultrasonic probe for body cavity puncture, which can increase the utility value of the small-sized ultrasonic probe during surgery.

The object of the invention of claim 2 is, in addition to the object of the invention of claim 1, the operations for attaching and detaching the puncture needle to the guide lever and for increasing the maximum protruding length of the puncture needle are greatly simplified. An object is to provide an ultrasonic probe for body cavity puncture that is excellent in usability.

The object of the third aspect of the invention is, in addition to the object of the first aspect of the invention, that it is easy to clean, disinfect, sterilize, etc. the guide pipe that is most contaminated during puncture, and the adapter itself, In particular, it is an object of the present invention to provide an ultrasonic probe for puncturing a body cavity, which is easy to clean the contact portion of the adapter with the guide pipe and can be used as a disposable guide pipe and is excellent in hygiene management.

[0010]

An object of the invention of claim 1 is to provide an ultrasonic probe on the tip of an adapter formed so that the tip side can be inserted into a body cavity, and a guide pipe provided on the adapter. Inside, the tip side of the puncture needle whose rear end side is fixed to the slider of the needle guide mechanism is inserted, and the protrusion length of the puncture needle tip portion from the adapter tip portion can be adjusted by the front-back direction positioning of the needle guide mechanism, In a body cavity puncturing ultrasonic probe capable of puncturing the observation target while observing an ultrasonic tomographic image by the ultrasonic probe in the body cavity, the ultrasonic probe is a small-sized ultrasonic probe of a specific shape. This is achieved by being a sound wave probe that can be attached to and detached from the distal end portion of the adapter in a fitting relationship.

Since the ultrasonic probe is a small ultrasonic probe having a specific shape for other purposes and can be attached / detached to / from the adapter in a fitting relationship, the cost can be reduced by sharing the ultrasonic probe to be used. This also means that the small-sized ultrasonic probe having a specific shape for other purposes is also used for the probe of the present invention, and the utility value of the probe is enhanced.

A second object of the present invention is to provide the needle guiding mechanism according to the first invention, wherein the needle guiding mechanism is formed in the front-rear direction of the adapter, and is slidable in the front-rear direction of the adapter by being fitted in the guide groove. And a slider having a screw hole or a male screw portion formed in the middle portion in the direction crossing the adapter front-rear direction, and a knob portion and a male screw portion or a screw hole, and the male screw portion or the screw hole is formed by twisting and rotating the knob portion of the slider. The puncture needle can be clamped and fixed by the upper surface of the slider and the lower surface of the knob portion by screwing with the screw hole or the male screw portion, and the slider is moved in the guide groove by moving the knob portion in the adapter longitudinal direction. This is achieved by including a needle fixing and guiding lever that can be moved in the front-rear direction and that can be advanced and retracted with the puncture needle fixed by pinching being inserted into the guiding pipe. .

The male screw portion (or screw hole) is screwed into the screw hole (or male screw portion) of the slider by twisting and rotating the knob portion, so that the upper surface of the slider and the lower surface of the knob portion of the needle fixing / inducing lever are punctured. If the needle can be clamped and fixed, the puncture needle can be easily attached to and detached from the needle fixing and guiding lever by twisting the knob. Further, after advancing the puncture needle with respect to the needle fixing / inducing lever with the clamping pressure of the puncture needle slightly relaxed by the twisting operation of the knob portion,
The maximum protruding length of the puncture needle can be increased simply by twisting the knob and fixing the puncture needle again by pinching, which is excellent in usability.

The object of the invention of claim 3 is achieved in the invention of claim 1 by the fact that the guide pipe is detachably provided in the adapter in a fitting relationship.

The fact that the guide pipe is detachably attached to the adapter in a fitting relationship means that the guide pipe can be easily attached to and detached from the adapter. This facilitates cleaning, disinfection, sterilization, etc. of the guide pipe that is most contaminated when performing puncture, and the adapter itself,
In particular, it becomes easy to clean the contact portion of the adapter with the guide pipe, and the guide pipe can be disposable, which improves usability in hygiene management.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 1 is a plan view showing an embodiment of an ultrasonic probe for body cavity puncture according to the present invention, FIG. 2 is a side view thereof, and FIG. 3 is an exploded side view thereof. 1 to 3, 1 is an adapter, 2 is an ultrasonic probe, 3 is a guiding pipe, 4 is a needle guiding mechanism, and 5 is a puncture needle.

Here, the adapter 1 is a handle 1a at the rear end.
The entire tip side portion excluding the portion is formed into a shape that can be inserted into the body cavity of the subject, here, the vagina of a cow, and the tip portion thereof is provided with the ultrasonic probe 2. Further, the distal end side of the puncture needle 5 whose rear end side is fixed to the slider 4a of the needle guide mechanism 4 is inserted into the guide pipe 3 provided on the upper surface of the adapter 1, and the front and rear direction of the needle guide mechanism 4 ( The protrusion length of the tip portion of the puncture needle 5 from the adapter tip portion 1b can be adjusted by positioning in the left-right direction in the drawing). Thereby, the puncture needle 5 can be punctured in the observation target while observing the ultrasonic tomographic image by the ultrasonic probe 2 in the body cavity, and here, the puncture needle 5 can be punctured in the follicle and the egg can be sucked and collected. .

In this case, in the present invention, the ultrasonic probe 2 is a small ultrasonic probe having a specific shape and is attachable to and detachable from the tip portion 1b of the adapter 1 in a fitting relationship. The ultrasonic probe 2 may be used for any purpose as long as it is a small ultrasonic probe having a specific shape. The specific shape is the probe 2
When the probe insertion concave portion (not shown) is formed in the distal end portion 1b of the adapter 1, it has a shape that allows it to be attached to and detached from the distal end portion 1b of the adapter 1. It means the shape of the probe 2 to be formed. In other words, the probe insertion concave portion of the tip end portion 1b of the adapter 1 is formed with an inner shape corresponding to the outer shape of the small ultrasonic probe 2 to be diverted here.

As described above, since the ultrasonic probe 2 is a small ultrasonic probe having a specific shape for other purposes and can be attached to and detached from the adapter 1 in a fitting relationship, the ultrasonic probe 2 to be used can be commonly used. Cost reduction is realized by. In addition, this means that the small-sized ultrasonic probe 2 having a specific shape for other purposes is also used for the probe of the present invention, and the utility value of the probe 2 is enhanced.

As the small-sized ultrasonic probe 2 having a specific shape for other uses, a small intraoperative ultrasonic probe, for example, a fingertip-mounted convex ultrasonic probe can be used. When using a fingertip-attached convex ultrasonic probe, first attach the fingertip-attached convex ultrasonic probe to the operator's fingertip, observe the ultrasonic tomographic image with it, and then attach the fingertip when performing puncture. A convex ultrasonic probe of the shape can be attached to the adapter 1 to be used as the ultrasonic probe 2 of the probe of the present invention, and the utility value of the fingertip-mounted convex ultrasonic probe is greatly enhanced. 2a
Is a cord of the ultrasonic probe 2, which is pushed and stored in a cord storing groove (not shown) formed in the front and rear direction of the lower end of the adapter 1.

Further, in the present invention, the needle guiding mechanism 4
Includes a slider 4a, a guide groove 4b, and a needle fixing / guide lever 4c configured as shown in FIG. 4, for example. 4A is a plan view, FIG. 4B is a partially cut front view, and FIG. 4C is a partially cut side view, and the same reference numerals as those in FIG. 1 denote the same parts.

Here, the guide groove 4b is formed on the upper surface of the rear end portion of the adapter 1 in the front-rear direction of the adapter 1 (left-right direction in the drawing). Further, the slider 4a is removably fitted into the guide groove 4b from the rear end portion thereof and is slidable in the front-rear direction of the adapter 1 (hereinafter referred to as the adapter front-rear direction) without coming off from above, and intersects in the adapter front-rear direction. A screw hole or a male screw portion is formed at a position closer to the right side, here, to the right side from the center position in the direction in which the screw hole 4a1 is formed.

The needle fixing and guiding lever 4c has a cylindrical knob portion 4c1 having a non-slip periphery, and a male screw portion or a screw hole, here, a male screw portion 4c2. And
By screwing the male screw portion 4c2 into the screw hole 4a1 of the slider 4a by twisting and rotating the knob portion 4c1, the puncture needle 5 can be clamped and fixed between the upper surface of the slider 4a and the lower surface of the knob portion 4c1, and the knob portion can be fixed. The slider 4a can be moved in the adapter front-rear direction in the guide groove 4b by pushing and pulling 4c1 in the adapter front-rear direction, and the puncture needle 5 clamped and fixed can be advanced and retracted while being inserted in the guide pipe 3. Has been done.

As described above, the male screw portion 4c2 is screwed into the screw hole 4a1 of the slider 4a by twisting and rotating the knob portion 4c1, so that the upper surface of the slider 4a and the lower surface of the knob portion 4c1 of the needle fixing / inducing lever 4c. Since the puncture needle 5 can be clamped and fixed, the puncture needle 5 can be easily attached to and detached from the needle fixing and guiding lever 4c by twisting the knob portion 4c1. That is, the puncture needle 5 is attached and fixed to the needle fixing and guiding lever 4c by removing the male screw portion 4c2 of the needle fixing and guiding lever 4c from the screw hole 4a1 of the slider 4a or by slightly screwing it into the screw hole 4a1. The puncture needle 5 is inserted into the guide pipe 3 from its tip in a closed state, and the male screw portion 4c2 is screwed into the screw hole 4a1 with the rear end side appropriate portion of the puncture needle 5 positioned near the screw hole 4a1. Then, the knob portion 4c1 may be twisted clockwise to clamp and fix the puncture needle 5 between the upper surface of the slider 4a and the lower surface of the knob portion 4c1 of the needle fixing and guiding lever 4c. According to the reverse procedure, the puncture needle 5 can be detached from the needle fixing and guiding lever 4c when the puncture needle 5 is replaced. Further, according to the needle guide mechanism 4, the puncture needle 5 is advanced with respect to the needle fixing / inducing lever 4c in a state where the clamping pressure of the puncture needle 5 is slightly relaxed by the counterclockwise twisting operation of the knob portion 4c1. After that, the maximum protruding length of the puncture needle 5 can be increased only by twisting the knob portion 4c1 clockwise at that position and clamping and fixing the puncture needle 5 again. The puncture needle 5 is guided at the time of puncturing by pressing the needle fixing and guiding lever 4c forward (rightward in the figure) with a fingertip. After puncture, needle fixing and guiding lever 4
Just pull c to the rear (left in the figure) with your fingertip.

Further, in the present invention, the guide pipe 3 is provided.
Are detachably attached to the adapter 1 in a fitting relationship. Here, as shown in FIGS. 1 and 2, the front and rear end portions of the guide pipe 3 have stoppers 3a having a diameter larger than that of the intermediate portion.
3b is formed, and the guide pipe 3 is provided on the upper surface of the adapter 1.
A long groove 1c having an inner shape corresponding to the outer shape on the front end side is formed, and a holder 1d for fitting and holding the stopper portion 3b of the guide pipe 3 is provided, and the long groove 1c of the adapter 1 is provided with the holder 1d. The guide pipe 3 is attached to the adapter 1 by fitting the stopper portion 3a and most of the intermediate portion and fitting and holding the stopper portion 3b of the guide pipe 3 with the holder 1d of the adapter 1. According to the reverse procedure, the adapter 1 for cleaning, disinfecting, sterilizing the guide pipe 3, etc.
The guide pipe 3 can be detached from. Therefore, cleaning of the guide pipe 3 that is most contaminated when performing puncture,
Disinfection, sterilization, etc. are facilitated, and the adapter 1 itself, in particular, the portion of the adapter 1 that contacts the guide pipe 3 is cleaned and disinfected.
Sterilization and the like are facilitated, and the guide pipe 3 can be disposable.

The slider 4a of the needle guiding mechanism 4
If a knob is formed in which a through screw hole penetrating in the vertical direction is formed, and a male screw portion that can be screwed in and is longer than the vertical dimension of the slider 4a is formed below,
The male screw portion is screwed into the through screw hole, the knob is twisted and tightened, and the tip of the male screw portion is pressed against the bottom surface of the guide groove 4b, so that the slider 4 is moved at that position.
a, in other words, the puncture needle 7 can be fixed.

FIG. 5 is a side view showing an essential part of another embodiment of the probe of the present invention. In FIG. 5, the same reference numerals as those in FIG. 2 indicate the same or corresponding parts. That is, here, the adapter 1 is made of a flexible material and can be bent in the vertical direction as shown by the chain double-dashed line in the figure or in the horizontal direction (vertical direction with respect to the plane of the drawing). According to this, it is possible to flexibly cope with the insertion of the adapter 1 into the intricate body cavity route, and the puncturable site is widened. In this case, the guide pipe 3 and the puncture needle 5 (see FIGS. 1 to 3) also have flexibility, for example, those formed of a soft synthetic resin such as vinyl chloride. The flexible adapter 1 can be used for various purposes by mounting another device in place of the puncture needle 5,
Can be used for parts.

[0028]

According to the invention of claim 1, the cost can be reduced by sharing the ultrasonic probe to be used, and the small-sized ultrasonic probe having a specific shape for other uses, particularly the fingertip-mounted convex ultrasonic wave. There is an effect that it is possible to enhance the utility value of a small-sized intraoperative ultrasonic probe such as a probe.

According to the invention of claim 2, in addition to the effect of the invention of claim 1, the operation for attaching and detaching the puncture needle to the guide lever and for increasing the maximum protrusion length of the puncture needle can be greatly simplified. This has the effect of improving usability.

According to the invention of claim 3, in addition to the effect of the invention of claim 1, it is easy to clean, disinfect, sterilize, etc. the guide pipe which is most contaminated during puncturing, and the adapter itself, Alternatively, the mutual contact portion between the adapter and the guide pipe can be easily cleaned, and the guide pipe can be disposable so that the usability in hygiene management is improved.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a probe of the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is an exploded side view of the same.

FIG. 4 is a view showing an example of a needle guiding mechanism in FIG. 1 taken out.

FIG. 5 is a side view showing a main part of another embodiment of the probe of the present invention.

FIG. 6 is a diagram showing a needle guiding mechanism of a conventional probe.

[Explanation of symbols]

1 ... Adapter, 1a ... Handle, 1b ... Tip, 1c ...
Long groove, 1d ... Holder, 2 ... Ultrasonic probe, 3 ... Guide pipe, 4,6 ... Needle guide mechanism, 4a ... Slider, 4a1 ...
Screw hole, 4b ... Guide groove, 4c ... Needle fixing and guide lever, 4
c1 ... knob part, 4c2 ... male screw part, 5 ... puncture needle, 6a
... Slider, 6a1 ... Needle insertion hole, 6a2 ... Screw hole, 6a
3 ... screw, 6b ... guide lever.

Claims (3)

[Claims] 1. An ultrasonic probe is provided at the tip of an adapter formed so that the tip side can be inserted into a body cavity, and the tip end side is fixed to a slider of a needle guidance mechanism inside a guide pipe provided in the adapter. The tip side of the inserted puncture needle is inserted, and the protruding length of the tip portion of the puncture needle from the tip portion of the adapter can be adjusted by positioning the needle guide mechanism in the front-rear direction. In an ultrasonic probe for puncturing a body cavity capable of puncturing the observation target while observing a tomographic image, the ultrasonic probe is a small ultrasonic probe of a specific shape and is fitted to the tip of the adapter. An ultrasonic probe for body cavity puncture, which is detachably attached in a relationship. 2. The needle guide mechanism includes a guide groove formed in the front-rear direction of the adapter, and a screw hole fitted in the guide groove and slidable in the front-rear direction of the adapter and in an intermediate portion in a direction intersecting the front-rear direction of the adapter. Alternatively, a slider having a male screw portion is formed, and the slider has a knob portion and a male screw portion or a screw hole, and the male screw portion or the screw hole is screwed into the screw hole or the male screw portion of the slider by twist rotation of the knob portion. The puncture needle can be clamped and fixed between the upper surface and the lower surface of the knob portion, and the slider can be moved in the adapter front-rear direction in the guide groove by moving the knob portion in the adapter front-rear direction. The ultrasonic probe for body cavity puncture according to claim 1, further comprising a needle fixing and guiding lever that is capable of advancing and retracting with the needle inserted in the guiding pipe. 3. The ultrasonic probe for puncturing a body cavity according to claim 1, wherein the guide pipe is detachably provided in a fitting relationship with the adapter.