JPS5865151A - Ultrasonic probe for drilling - 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 probe for puncturing of an ultrasonic diagnostic apparatus used when inserting a puncturing needle into a subject, such as in a biopsy test.

A biopsy test is an essential test for diagnosing various diseases, especially blood diseases. Currently, one common practice is to extract 1 ft of body fluid from the liver, kidneys, or internal organs using a suitable puncture needle depending on the purpose of diagnosis. In addition, there are methods in which a puncture needle is used to puncture a target part of a pregnant woman for diagnostic purposes, such as squirting amniotic fluid from the uterus or injecting drugs or blood into the body of a fetus.

In each of the above cases, it is necessary to prevent unnecessary injury to dangerous areas other than the target area by puncturing the puncture needle into the body, and to prevent tissue from being accidentally pulled out from an undesired body area. be.

Conventionally, the operation of such a puncture needle relied on the doctor's intuition, but in recent years, ultrasonic diagnostic equipment, especially devices that can display arbitrary tomographic images of the subject, have been used in conjunction with the treatment of a subject with this puncture needle. ing. In order to effectively use such an ultrasound diagnostic device for puncturing a patient with a puncture needle, it is necessary to use the internal tomographic image of the patient displayed by the ultrasound diagnostic device and the ultrasound of the puncture needle when puncturing the patient. It is necessary for the echo image to be displayed accurately. Furthermore, it is necessary that the operator, ie, the doctor, be able to freely select the puncture course of the puncture needle to the target site among the displayed tomographic images inside the subject. An ultrasonic probe that satisfies these requirements is disclosed in Japanese Patent Application Laid-Open No. 51-873, for example.
As a method for removing the plug disclosed in Japanese Patent Application Laid-Open No. 55-94244, 4-0 is already known.

Fig. 1 shows an ultrasonic probe disclosed in Japanese Patent Application Laid-open No. 51-87384, and Fig. 2 shows an ultrasonic probe disclosed in Japanese Patent Application Laid-open No. 55-942.
44 shows an ultrasonic probe disclosed in Publication No. 44.

In FIG. 1, reference numeral 1 indicates a surface of the ultrasonic glove that comes into contact with the body, 2 a support for the ultrasonic probe, 3 an array of ultrasonic transducer elements, 4 a connecting cable nozzle 6, and a guide slit for a puncture needle.

In addition, in FIG. 2, 1 is the contact surface of the ultrasound probe against the body, 2 is the support of the ultrasound probe, 3 is the ultrasound conversion element, 4 is the connection cable, and 6 is the guide provided on the support. 6 is a guide member, 7 is a guide slit provided in the guide member 6, 8 is an introduction slit provided in the guide member 8, and 9 is a guide member fixing means.

Guide slit 5 in Figure 1 and guide slit 7 in Figure 2
are pre-excitation slots formed on the support 2 and the guide member e of the ultrasound probe, respectively, and by inserting the puncture needle through these, the ultrasound probe comes into contact with the body during puncture with the puncture needle. The puncture needle can be monitored at the same time while viewing the ultrasound tomographic image inside the subject obtained by sequentially driving the plurality of ultrasound transducers 3 arranged on the plane 1. In order to aim at any puncture point within a predetermined depth range, the puncture needle can be rotated within a certain range from the vertical position, and any diagonal position can be freely selected.

However, as mentioned above, after puncturing the target site with the puncture needle,
It becomes necessary to place the puncture needle and remove the ultrasound probe. This is because an ultrasound probe is not required to collect fluid, blood, or tissue; only a puncture needle located at a precise location is required.3 For this reason, ultrasound probes for punctures are required to have the following functions. Ru.

1. The guide member allows the puncture needle to be inserted accurately;
Further, this guide member can be easily removed after being punctured.

When puncturing the ultrasound probe shown in FIG. 2, a guide member 6 having a guide slit 7 is fitted into the support 2 of the ultrasound probe, and the puncture needle is inserted into the guide slit 7.
Guide and puncture. Then, in order to maintain the puncture state and remove the ultrasound probe, move the puncture needle so that it is parallel to the introduction slit 8, shift the support 2 of the ultrasound probe laterally, and remove it from the introduction slit 8. , the ultrasonic probe can be detached from the support 2.

However, according to this ultrasonic probe, it is not possible to detach from the ultrasonic probe without moving the needle that has been punctured by detecting the exact site with the ultrasonic probe, and when attempting to detach, the puncture point of the sword also moves. You end up doing it.

The present invention eliminates the above-mentioned drawbacks, provides an ultrasonic glove equipped with a guide slit for the puncture needle, allows the puncturing direction to be freely selected within a certain angle, and after puncturing, the puncturing state can be changed to that direction. To provide an ultrasonic probe for puncture, which can be maintained and easily removed from an ultrasonic glove, and which can be used with a puncture needle of any thickness.

An embodiment of the present invention will be described below with reference to the drawings.

FIGS. 3a and 3b are a configuration diagram and a side view of essential parts of an embodiment of the present invention. In Figures 3a and 3b, 1 is the contact surface to the human body, 2 is the support of the ultrasonic glove, 3 is the ultrasonic conversion element, 4 is the connection cable, 121171° is the fixed horn for upper restriction ζ, 13 is the puncture A pyramidal block 14 that guides the needle and is fixed in the pyramidal space 16 of the support 20 by the opening of the groove 16 is a screw that adjusts the opening of the groove 16.

To use an ultrasonic probe with this configuration,
First, the puncture needle, the ultrasonic probe support 2, the pyramidal block 13, and the screw 14 are disinfected to achieve complete sterilization. Next, screws 14 are inserted into the pyramidal block 13. In this state, it is attached to the pyramidal space 16 of the support body 2 from the side.

At this time, a gap is provided between the puncture needle and the side wall of the pyramidal space 16 to match the thickness of the puncture needle, and the screw 14 is turned to widen the width of the split groove 16 and firmly fix it to the support body 2. Incidentally, the pyramidal fork 13 is threaded from the upper surface to the split groove 16, and no processing is performed beyond that point. Puncture preparation is complete 8.- Then, the puncture needle is placed between the side wall of the pyramidal space 16 and the pyramidal block 13 and inserted into the subject. When the exact position is detected using the ultrasound diagnostic image and the puncture needle is inserted into the predetermined position, the screw 14 is turned in the opposite direction to the tip, and the width of the split groove 16 is changed by elastic deformation of the pyramidal block 13. The support body 20 is released from being fixed in the pyramidal space 16. If the pyramidal block 13 is pulled out laterally in the closed state, the pyramidal space 16 becomes free and the ultrasonic glove can be easily removed.

FIGS. 4a and 4b are a perspective view and a plan view of main parts showing another embodiment of the present invention. In FIGS. 4a and 4b, 2 is a support for the ultrasonic probe, 12 is a fixed stopper for upper restriction, 1
Reference numeral 3 denotes a pyramidal block that guides the puncture needle and is fixed to the support body 2 by the pushing force of the set screw 14.

When using the ultrasonic glove of this embodiment, first, the puncture needle, the ultrasonic glove support 2, the pyramidal block 13 and the set screw 14 are disinfected to achieve complete sterilization.

Next, a set screw 14 is inserted into the pyramidal block 13.

In this state, the support body 20 pyramidal space 1
6 from the side. At this time, a gap is provided between the side wall of the pyramidal space 16 and the pyramidal block 13 to match the thickness of the puncture needle, and the set screw 14 is screwed in at 1c! l L, T: Using the reaction force of the screw to the support 2, firmly fix it to the support 2. When preparations for puncture are completed, the puncture needle is applied to the above-mentioned gap and inserted into the subject. As described above, the ultrasound probe is removed leaving the puncture needle behind.

In addition, in order to remove the pyramidal block 13 from the support 2,
The ultrasonic probe can be easily removed by loosening the set screw 14 in the exact opposite manner to the fixing process.

FIG. 6 shows a pyramidal block according to yet another embodiment of the invention. In FIG. 6, the pyramidal block 13 has an adjustment screw 18. A nut 19 corresponding to the adjustment screw 1B and an arm 17 connected to the nut 19 are built in. The adjustment screw 18 is a fixed screw threaded over a wide range, and the rotation of the screw 18 causes the nut 19 to move up and down, and the arm 17 changes its opening angle along with this up and down movement.

When fixing the pyramidal block 13, lower the nut 19, push the joint of the arm outward, push the inclined wall of the pyramidal space of the ultrasonic probe, and fix it with a reaction force, and release the fixation by lowering the nut 19. This is done by raising the arm and returning the joint of the arm inward.

As explained above, according to the present invention, since the pyramidal block identified in the pyramidal space has a means for pressing against the side wall of the pyramidal space, the suppressed state is released and the pyramidal block is pushed laterally. After correctly positioning the puncture needle in the pyramidal space, simply take it out.
The ultrasonic probe can be removed, and there is no need to move the puncture needle and misplace the puncture point as in the past. Furthermore, in the present invention, since the pyramidal block is removable laterally, the fixed position 1d of the pyramidal block can be determined depending on the thickness of the puncture needle, and the puncture needle J of any thickness can be fixed. can be used.

[Brief explanation of the drawing]

FIGS. 1 and 2 are perspective views of conventional puncturing ultrasonic gloves, FIGS. 3 a and b are configuration diagrams and side views of essential parts showing an embodiment of the present invention, and FIGS. 4 a and h are main part side views. FIG. 6 is a diagram showing a configuration of main parts and a plan view of main parts showing another embodiment of the invention, and FIG. 1...The contact surface of the ultrasound probe against the body, 2.
... Support for ultrasonic probe, 3 ... Ultrasonic conversion element, 4 ... Connection cable, 12 ...
...Fixed stopper, 13--Pyramid block, 14゜Screw, 16...Split groove,
16...Pyramid space, 17 *a*ae++ arm, 18・lIljIIm-adjustment screw, 19...
・Natsuto. Name of agent Patent attorney Toshio Nakao #1 or 1 person Figure 1 JIRa Figure l Figure 4 (It) Autopsy Figure 5

Claims (4)

[Claims] (1) A large number of ultrasonic transducer elements arranged on a surface that contacts the subject so as to have a cutout in a part, a pyramidal space communicating with the cutout, and a pyramidal space attached to the pyramidal space, An ultrasonic probe for puncturing, characterized in that it has a pyramidal block having means for pressing against a side wall. (2) The pyramid-shaped block has a split groove, and a screw hole is formed from one end face of the pyramid-shaped block at the neck of the split groove, and the side of the pyramid-shaped block is formed by rotation of a screw threaded into the screw hole. The ultrasonic probe for puncturing according to claim 1, characterized in that the probe is expanded. (3) The pyramid-shaped hook has a screw hole extending from one end surface to the side, and the screw threaded into the screw hole abuts against the side wall of the pyramid space. Ultrasonic probe for puncturing as described in . 2, -1 (4) The pyramidal block is characterized by comprising a fixed male screw, a female screw that is screwed into the male screw, and an arm that is connected to the female screw and moves in a direction perpendicular to the movement of the female screw. An ultrasonic glove for puncturing according to claim 1.