JP2813995B2 - Semi-implanted ultrasound probe - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a body-implanted ultrasonic probe,
It is useful for performing path observation by implanting it in the affected area after surgery.

[Prior Art] Conventional ultrasonic probes are used in close contact with the body surface, those used by inserting them into body cavities such as rectum and vagina, and those inserted into the body during surgery. There are known types that are used.

Meanwhile, when performing follow-up observation after performing an operation on a site in the body (for example, the heart), an ultrasonic probe of a type that is closely attached to the body surface is used.

[Problems to be Solved by the Invention] As described above, an ultrasonic probe of a type that is in close contact with the body surface is used to observe the progress of a part of the body after surgery. Since it is difficult to fix the ultrasonic probe to the patient's body, there is a problem that the same viewpoint cannot be maintained. Furthermore, it is disturbed by the drain tube for discharging the stored liquid in the patient's body, the wound, etc.
There is a problem that it is difficult to obtain a good tomographic image.

Therefore, an object of the present invention is to provide an ultrasonic probe which can be securely fixed to a patient's body and can obtain a tomographic image without being disturbed by a drain tube or the like.

[Means for Solving the Problems] A half-implanted ultrasound probe according to the present invention has a cylindrical body for connecting a front end portion to be implanted into a body, a rear end portion to be exposed outside the body, and both end portions thereof. An ultrasonic vibrator is mounted on the distal end portion and an opening for liquid suction is provided, and a cable of the ultrasonic vibrator from the distal end portion to the rear end portion through the body portion passes therethrough. It is characterized in that a discharge passage for the liquid sucked from the liquid suction opening is formed.

[Effect] In the body-implanted ultrasonic probe of the present invention, the front end is embedded in the body, and the rear end is exposed outside the body. That is, it is used in a state of being partially embedded in the body.

Therefore, fixation to the patient's body is easy and reliable.

In addition, since the ultrasonic transducer is attached to the distal end portion embedded in the body, the target site can be observed from the body without being disturbed by the drain tube or the like.

Furthermore, since the liquid stored in the body can be sucked and discharged out of the body through the liquid suction opening provided at the distal end, there is no need to separately provide a drain tube on the patient's body, and the burden on the patient is reduced.

[Example] Hereinafter, the present invention will be described in more detail based on an example shown in the drawings. It should be noted that the present invention is not limited by this.

FIG. 1 is a cross-sectional view showing a body-implanted ultrasonic probe 1 according to one embodiment of the present invention.

The ultrasound probe 1 is a probe body 10 and a tube 12 integrated with each other, and has a hemispherical tip portion a that is embedded in the body when used and a rear end portion that is exposed outside the body. It comprises a portion b and a body portion c connecting the both end portions a and b.

The probe main body 10 and the tube 12 have the same diameter in order to reduce the burden on the patient.

The probe main body 10 is provided with the ultrasonic vibrator 2, a liquid suction opening 3, and a liquid discharge passage 6 therethrough.

FIG. 2 is an external view of the probe main body 10 as viewed from the front side of the ultrasonic vibrator 2, FIG. 3 is an external view of the probe main body 10 as viewed from the liquid suction opening 3, and FIG. FIG.

The tube 12 is formed of a material harmless to the living body such as a silicone resin, and is formed of a soft material from the viewpoint of compatibility with a human body and handling.

The cable 4 connected to the ultrasonic transducer 2 is a tube
It passes through the inside of 12 and is led out from the rear end b and reaches a connector 5 for connecting to an ultrasonic diagnostic apparatus.

A liquid discharge opening 8 is provided at the rear end b of the tube 12, and a drain tube 9 is connected to the liquid discharge opening 8. Therefore, the liquid sucked from the liquid suction opening 3 at the distal end portion a flows through the liquid discharge path 6, the inside of the tube 12, and flows out from the liquid discharge opening 8 to the drain chamber 9. Therefore, the internal cavity of the tube 12 forms the liquid discharge path 7.

FIG. 5 is a conceptual diagram for explaining a state in which the above-described in-body half-implanted ultrasonic probe 1 is used. After the heart H and the operation, the tip a is inserted into the body through a wound and is partially implanted. The wound is sutured, and a follow-up observation is performed in this state for a predetermined number of days. The cable is connected to an ultrasonic diagnostic device, and the drain tube 9 is connected to a drainage device. After the follow-up,
The wound is pulled out and the wound is sutured.

By doing so, the heart H can be observed from the inside, the viewpoint is the same and does not change, and the burden on the patient is reduced because the cable 4 and the drain tube 9 are integrated.

Next, FIG. 6 shows a body-implanted ultrasonic probe 21 according to another embodiment of the present invention.

In this body-implanted ultrasonic probe 21, the probe body 10 is the same as that described in the above embodiment,
The tube 22 is different from the tube of the above embodiment.

That is, as shown in FIGS. 7 and 8, a tubular portion 25 in which a liquid discharge passage 23 is formed is integrally provided inside a tube 22, and the distal end side of the tubular portion 25 projects so that the probe The main body 10 is inserted into the liquid discharge passage 6.

Next, FIG. 9 shows a body-implanted ultrasonic probe 31 according to still another embodiment of the present invention.

In this body-implanted ultrasonic probe 31, the probe body 10 is the same as that described in the above-described embodiment,
The cable 34 is different from the cable 4 of the above embodiment.

That is, as shown in FIGS. 10 and 11, a tubular portion 35 forming a liquid discharge passage 33 is integrally provided along a cable main body portion including six internal cables 34a.
Then, the tip of the tubular portion 35 is inserted into the liquid discharge passage 6 of the probe main body 10, and the rear end is connected to the drain tube 9.

[Effects of the Invention] According to the semi-implanted ultrasound probe in the body according to the present invention, it is possible to observe a part in the body from inside the body,
Further, the viewpoint to be observed is fixed. further,
Since it has the function of a drain tube for discharging the stored liquid in the body, there is no need to separately provide a drain tube,
The burden on the patient is reduced.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a half-implanted ultrasonic probe according to one embodiment of the present invention, FIG. 2 is an external view of a probe body used in the embodiment shown in FIG. 1, and FIG. FIG. 4 is an external view of the probe main body as viewed from the cable side, and FIG. 5 is a conceptual view showing a use state of the in-vivo ultrasonic probe 1 shown in FIG. FIG. 6 is a cross-sectional view of a body-implanted ultrasonic probe according to another embodiment of the present invention. FIG. 7 is a cross-sectional view of a main part of a tube used in the embodiment shown in FIG. 7 is a cross-sectional view taken along the line AA in FIG. 7, FIG. 9 is a cross-sectional view of a body-implanted ultrasonic probe according to still another embodiment of the present invention, and FIG. 10 is used in the embodiment shown in FIG. FIG. 11 is a sectional view taken along the line BB in FIG. (Explanation of reference numerals) 1,21,31, ... Semi-implanted ultrasonic probe in body a ... Top end b ... Back end c ... Body 2 ... Ultrasonic vibrator 3 ... Liquid suction Opening 4,34 Cable 6,7,23,33 Liquid discharge channel 9 Drain tube 10 Probe body 12,22,32 Tube 25,35 Tube part.

──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Masaru Tsukamoto Hokkaido, Sapporo-shi, Yamanote 2-chome, 12-3-15, (72) Inventor Shinichi Sano 4-7-1, Asahigaoka, Hino-shi, Tokyo 127 Yokogawa Medical Systems Corporation (72) Inventor Hiroki Onuki 127 Yokogawa Medical System Co., Ltd., 4-7 Asahigaoka, Hino City, Tokyo (72) Inventor Motoyoshi Ando 127, 4-7 Asahigaoka, Hino City, Tokyo In-house (72) Inventor Dan Tidwell 127-7 Yokogawa Medical System Co., Ltd., 4-7 Asahigaoka, Hino-shi, Tokyo Examiner Katsumi Enari (56) Reference JP-A-3-94741 (JP, A) JP-A-63-147446 (JP, A) JP-A-62-106745 (JP, A) JP-A-62-275438 (JP, A) 58) Surveyed field (Int.Cl. ⁶ , DB name) A61B 8/00

Claims (1)

(57) [Claims] An ultrasonic transducer is attached to a front end portion to be implanted in the body, a rear end portion to be exposed outside the body, and a cylindrical body connecting the both end portions. And a liquid suction opening is provided, and a cable of the ultrasonic vibrator passes from the front end portion to the rear end portion through the body portion, and a discharge path of the liquid sucked from the liquid suction opening is formed. A body-embedded ultrasonic probe characterized by the following.