JPH05317309A - Ultrasonic probe for drill-piercing - Google Patents

Abstract

PURPOSE:To correctly accomplish drill-piercing by image-displaying the condition where a drill-piercing needle is forced to pierce toward an organ to be inspected in two directions at the time of performing drill-piercing technique by using an ultrasonic diagnosing device. CONSTITUTION:In an ultrasonic probe 1 including ultrasonic transmit and receiving parts 3, 4 comprising a pair of array vibrators fitted to a main body case 2 in such a manner that scanning surfaces intersect, a drill-piercing needle guide hole 6 is provided on a crossed line of the respective ultrasonic scanning surfaces of the ultrasonic transmit and receiving parts 3, 4. The needle is inserted in the drill-piercing needle guide hole 6, and while transmission and receiving are performed reciprocally by the ultrasonic transmit and receiving parts 3, 4 to image-display a region to be inspected in a testing body in two directions, the needle is stung into the testing body. Thus, the advancing status of the drill-piercing needle into the region to be inspected is projected on both two images, so that drill-piercing can be correctly accomplished.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ultrasonic probe used in an ultrasonic diagnostic apparatus, and more particularly to an ultrasonic probe suitable for puncturing while observing a tomographic image by contacting the ultrasonic probe with a subject. It relates to a sound wave probe.

[0002]

2. Description of the Related Art In the field of ultrasonic diagnosis, puncture is performed. In this, a needle is inserted into a subject, and thereby pathological tissue is sucked and collected. At the time of this puncture, a method is adopted in which an ultrasonic diagnostic apparatus displays an image of the inside of the subject in real time, and the puncture needle is displayed in the image to perform puncture. In order to project the puncture needle in the ultrasonic image, the puncture needle must be positioned within the scanning plane of the ultrasonic waves transmitted and received by the ultrasonic probe, and for that reason, conventionally, the ultrasonic probe A puncture needle guide tool is provided on the main body, and a notch groove or hole is provided on the ultrasonic probe main body.

[0003]

However, the puncture method using an ultrasonic image described above has some points to be improved. That is, in the above-mentioned method, since the ultrasonic wave displays only a single slice plane, the accuracy of puncturing the target site is low, and further, when the needle is inserted into the living body, the needle is punctured for muscle contraction and the like. Since the resistance to insert is large, it is difficult to hold the ultrasonic probe toward the target site, so the target site may not be displayed in the ultrasonic image.
It is difficult to puncture.

The present invention has been made in view of these points, and enables puncture by using a real-time biplane type ultrasonic tomography device which has recently been put into practical use, and thereby facilitates puncture. The purpose is to

[0005]

In order to achieve the above object, the present invention comprises a plurality of sets of array transducers, and the array vibrations are arranged so that the ultrasonic scanning planes transmitted and received by these array transducers intersect. In the ultrasonic probe provided with a child, puncture needle guide means for guiding the puncture needle is provided on the intersection line of the ultrasonic scanning plane.

[0006]

[Function] The ultrasonic probe is brought into contact with the subject, and in that state, ultrasonic waves are alternately transmitted and received from the plurality of array transducers into the subject, and the received signal is image-processed in the ultrasonic tomography apparatus main body. Then, when displayed on a monitor, each cross-sectional image of the subject on the ultrasonic scanning surface of the plurality of array transducers is displayed in real time. While observing this cross-sectional image, the probe can be positioned so that the target puncture site is displayed in each cross-sectional image. In this state, when the puncture needle is inserted into the subject using the puncture needle guide means provided on the probe, the puncture needle is displayed on each cross-sectional image. By puncturing the needle while looking at this image, it is possible to accurately puncture the target site.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 shows a real-time biplane type ultrasonic diagnostic apparatus, for example, an ultrasonic probe for puncture, which is used by connecting to an ultrasonic diagnostic apparatus manufactured by using the technique described in Japanese Patent Publication No. 58-2697. It is the figure which looked at the tentacle from the ultrasonic wave transmission / reception side. This puncture ultrasonic probe 1
As shown by the broken line in the figure to the main body case 2 and the main body case 2,
Ultrasonic transmitting / receiving sections 3 and 4 having array transducers arranged so that the array directions are orthogonal (this means that the ultrasonic scanning planes are orthogonal to each other), and these ultrasonic transmitting / receiving sections 3 And a probe cable 5 having a built-in signal line connected to 4 and 4, and a puncture needle guide hole 6 provided so as to penetrate the main body case 2 and the ultrasonic wave transmitting / receiving section 4.

As is well known, the puncture ultrasonic probe 1 is connected to an ultrasonic diagnostic apparatus main body (not shown) by a connector, and the ultrasonic wave transmitting / receiving circuit in the ultrasonic diagnostic apparatus main body causes the ultrasonic transmitting / receiving sections 3 and 4 to Ultrasonic scanning is performed by each array transducer. At this time, since the array directions of the array transducers in the ultrasonic transmission / reception units 3 and 4 are orthogonal to each other on the ultrasonic scanning planes,
Similarly, it becomes orthogonal.

In the present invention, the puncture needle guide hole 6 is
When the puncture needle 7 is inserted into the puncture needle guide hole 6, the puncture needle 7 is formed so as to be guided along the intersection line of the ultrasonic scanning planes. 2, 3 and 4 show examples of the puncture needle guide hole. The puncture needle guide hole 6a shown in FIG. 2 has a circular cross section, and the puncture needle guide hole 6a shown in FIGS.
6c is an example formed in a long hole.

FIG. 5 shows an ultrasonic image displayed on the monitor screen of the ultrasonic diagnostic apparatus main body when puncturing is performed using the ultrasonic probe of the present invention. On the display screen, the image on the left side is the ultrasonic image A by the ultrasonic receiving unit 3 of the probe.
Then, the image on the right side is an ultrasonic image B by the ultrasonic transmitting / receiving unit 4. Then, according to the embodiment of FIG. 5, the two images A,
The puncture needles shown in B represent the cross-sectional positions of the images of each other. As shown in this figure, the needle inserted into the subject is shown in both ultrasonic images A and B. Therefore, the insertion of the needle into the target site for puncture can be observed from two orthogonal directions, and the puncture accuracy can be improved.

In the above embodiment, an example in which the two ultrasonic scanning planes of the probe are orthogonal to each other has been described, but they need not be orthogonal to each other.

[0012]

As described above, according to the present invention, since the guide means for guiding the puncture needle is provided on the intersection line of the ultrasonic scanning planes of the biplane ultrasonic probe, the puncture target site is provided. The situation in which the puncture needle is inserted can be observed from two directions, and therefore the puncture accuracy can be improved.

[Brief description of drawings]

FIG. 1 is a perspective view of an ultrasonic probe for puncture according to an embodiment of the present invention.

FIG. 2 is a shape diagram of a puncture needle guide hole.

FIG. 3 is a diagram showing a first modification of a puncture needle guide hole.

FIG. 4 is a diagram showing a second modification of the puncture needle guide hole.

FIG. 5 is a diagram showing an ultrasonic monitor image at the time of puncturing using the ultrasonic probe for puncturing of the present invention.

[Explanation of symbols]

 1 Ultrasonic probe for puncture 2 Main body case 3 Ultrasonic transceiver 4 Ultrasonic transceiver 5 Probe cable 6 Puncture needle guide hole 7 Puncture needle

Claims (1)

[Claims] 1. An ultrasonic probe comprising a plurality of array transducers, wherein the array transducers are arranged so that the ultrasonic scanning planes transmitted and received by the array transducers intersect. An ultrasonic probe for puncture, comprising puncture needle guide means for guiding the puncture needle on the intersection line of the acoustic wave scanning surface.