JPH0394741A - Internal storage type ultrasonic probe - Google Patents

Abstract

PURPOSE:To remarkably reduce a load on an operator or a patient when it is required to recognize medical treatment for long time by providing an ultrasonic signal transmission cable whose one end is connected to a connector part for transmission/reception, and the other end of which is connected to an ultrasonic transducer. CONSTITUTION:When an ultrasonic probe 11 is used, it is stored in an organism 2 in advance. When a signal from an ultrasonic wave observation device 16 is transmitted to a coil 13 outside a body via a signal cable 15, the signal is transmitted to an internal coil 8 for transmission/reception provided at an internal connector 3 in electromagnetic induction fashion, and is transmitted to the ultrasonic oscillator 9 of the transducer 10 via a coaxial cable 7 in a catheter 1. Then, an ultrasonic wave oscillates from the ultrasonic oscillator 9, with which a diseased part 6 is irradiated. Also, a reflected wave at that time is received with the same ultrasonic oscillator 9, and is transmitted to the ultrasonic wave observation device 16 via the coaxial cable 7, the coils 8, 13 of a transformer 14 for transmission/reception, and the signal cable 15. The ultrasonic wave observation device 16 processes the signal, and displays an ultrasonic tomographic image on a monitor.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an indwelling ultrasonic probe that is indwelled in a living body and used as needed.

[Prior art] A device using an ultrasonic probe, for example, an ultrasonic saiso mirror device, incorporates an ultrasonic vibrator at the tip of its introductory part, and connects it to a transmitting/receiving device on the proximal side via a signal line such as a coaxial cable. It is connected with The ultrasonic transducer is then sent to the ultrasound transducer through a signal line, and the signal received from the ultrasound transducer is received through the signal line by an external transmitting/receiving device, where it is processed and an ultrasound tomographic image is displayed on a monitor. There is.

[Problems to be Solved by the Invention] However, when heating is performed repeatedly over a long period of time, such as when performing thermotherapy, ultrasonic probes are applied to the human body each time in order to diagnose the progress of the treatment. It is necessary to insert the

However, piercing the ultrasound probe each time places a heavy burden on both the operator and the patient, and diagnosis can only be made in the operating room.

The present invention has been made with attention to the above-mentioned problems, and its purpose is to eliminate the troublesome surgical technique of inserting an ultrasonic probe into the living body each time the treatment progress, etc. of the affected area in the living body is examined. In-body indwelling ultrasonic diagnostics can be performed immediately and efficiently with a simple TY operation, and can greatly reduce the burden on the surgeon and patient, especially when it is necessary to understand the long-term treatment progress. The purpose of the present invention is to provide a sonic probe.

[Means and operations for achieving the object] In order to achieve the above object, the present invention provides a transmitting/receiving connector section that is placed near the body surface of a living body and electrically connects an external signal cable in a detachable manner; An in-body device comprising an ultrasonic transducer located near the affected area in the body, and an ultrasonic signal transmission cable placed in the living body and having one end connected to the transmitting/receiving connector and the other end connected to the ultrasonic transducer. This is an indwelling ultrasonic probe.

Therefore, by leaving the ultrasound probe in the living body,
When inspecting the progress of treatment of an affected area, an external signal cable is electrically connected to the ultrasound probe inside the living body. Then, the condition of the affected area is diagnosed using ultrasound. Therefore, there is no need for the troublesome technique of inserting an ultrasonic probe into the living body each time the treatment progress of the affected area is examined, and ultrasonic diagnosis can be performed immediately and efficiently with simple operations.

[Length example]

1 and 2 show a first embodiment of the present invention. FIG. 1 shows its schematic structure, and FIG. 2 shows its concrete structure. FIG. 2 "1" 1 is a catheter placed in the living body 2, and an intracorporeal connector 3 as a subcutaneous terminal is installed near the epidermis 2a of the sitting body 2. Fully embedded nearby.

One end of the catheter 1 is connected to the internal connector 3, and the other end of the catheter 1 is located inside the living body 2 near an affected area 6, such as cancer of the liver Illa5.

Furthermore, a coaxial cable 7 for transmitting ultrasonic signals is passed through the catheter 1. One end of this coaxial cable 7 is connected to an intracorporeal coil 8 for transmitting and receiving provided in the above-mentioned intracorporeal connector 3, and the other end is connected to an ultrasonic transducer 10 consisting of an ultrasonic transducer 9 provided within the tip of the catheter 1.
It is connected to the. These constitute an ultrasonic probe 11 that is placed in the living body 2.

By the way, as shown in FIG. 2, the internal connector 3 has an external connector 12 that contacts the body surface of the living body 2 from outside.
It is now possible to face the two.

The extracorporeal connector 12 is provided with an extracorporeal coil 13 for transmission and reception, and this extracorporeal coil 13 for transmission and reception is arranged to face the above-mentioned internal coil 8 for transmission and reception. That is, the internal transmitting/receiving coil 8 and the external transmitting/receiving coil 13 constitute a transmitting/receiving transformer 14, and are capable of transmitting signals by electromagnetic induction in a so-called non-contact state.

On the other hand, the extracorporeal transmitting/receiving coil 13 of the extracorporeal connector 12 is connected to an ultrasonic observation device 16 through a signal cable 15 made of a coaxial cable or the like.

Therefore, when using this ultrasonic probe 11, as shown in FIG.
Place it in advance.

Therefore, the signal from the ultrasonic observation device 16 is transmitted to the extracorporeal coil 13 through the signal cable 15.

The signal applied to the extracorporeal coil 13 is transmitted to the intracorporeal coil 8 by electromagnetic induction. The signal transmitted to the intracorporeal coil 8 is transmitted to the ultrasound transducer 9 of the ultrasound transducer 10 through the coaxial cable 7 within the catheter 1 . Then, ultrasonic waves are oscillated from the ultrasonic transducer 9 and irradiated onto the affected area 6.

Also, the reflected waves at this time are received by the same ultrasonic transducer. This received signal is transmitted to the ultrasonic observation device 16 through the coaxial cable 7, each coil 8.13 of the transmitting/receiving transformer 14, and an external signal cable 15. The ultrasonic observation device 16 processes the received signal and displays an ultrasonic tomographic image on a monitor (not shown). As a result, the affected area 6 inside the living body 2
can be observed.

Further, when the ultrasound probe 11 is not used, the extracorporeal connector 12 and the signal cable 15 are separated while the ultrasound probe 11 remains indwelled in the living body 2. Therefore, the extracorporeal connector 12 and signal cable 15 do not get in the way.

FIG. 3 shows a second embodiment of the invention. This forms a reservoir 21 using an intracorporeal connector 3 as a subcutaneous terminal placed near the epidermis 28 of a living body 2. This reservoir 21 is located on the epidermis 2a side and the syringe 2
A membrane portion 24 is formed through which the second injection needle 23 can be pierced.

The intracorporeal coil 8 is disposed in a ring shape around the reservoir 21 thereof.

Further, one end of a catheter 25 is connected to the reservoir 21, and the other end of the catheter 25 is connected to an ultrasonic transducer 1 including an ultrasonic transducer 9 as described above.
0 is set. Furthermore, a plurality of drug solution injection holes 26 are provided at the other end of the catheter 25. In addition,
A coaxial cable 7 for ultrasonic signal transmission similar to that described above is threaded into the catheter 25.

Therefore, in this embodiment, it is possible to observe an ultrasonic tomographic image as in the first embodiment, and also to administer a medicinal solution to the affected area 6. When administering a medicinal solution to the affected area 6, the membrane portion 24 of the reservoir 21 in the internal connector 3 is pierced with the injection needle 23 of the syringe 22 containing the medicinal solution, and the medicinal solution is injected into the reservoir 21. The medicinal solution is administered to the affected area 6 through the plurality of medicinal solution injection holes 26 at the distal end of the catheter 25 through the catheter 25 . Note that the dosage of this drug solution may be adjusted according to the information obtained from the above-mentioned ultrasonic diagnosis.

Note that the present invention is not limited to the above embodiments. For example, a microwave receiving antenna is attached to the internal connector near the body surface in addition to the above-mentioned internal coil, and this receives the microwave from the external oscillation antenna, and then transmits the microwave through a transmission cable placed inside the catheter. Microwaves may be emitted to the affected area from an emission antenna provided at the tip of the catheter. Then, it is possible to perform thermal treatment of the affected area using this microwave.

Furthermore, the internal connector is not limited to one that constitutes a subcutaneous terminal. It may constitute a percutaneous terminal that is partially exposed from the body surface.

[Effects of the Invention] As explained above, according to the present invention, there is no need for the troublesome technique of inserting various ultrasound probes into the living body each time the treatment progress of the affected part in the living body is examined. Ultrasonic diagnosis can be performed efficiently and immediately by operation. In particular, the burden on the surgeon and patient can be significantly reduced when it is necessary to understand the long-term progress of treatment. Furthermore, it can be easily diagnosed outside the operating room.

[Brief explanation of drawings]

FIG. 1 is a schematic configuration explanatory diagram of a first embodiment of the present invention,
FIG. 2 is a more specific diagram illustrating the configuration of the first embodiment of the present invention in use, and FIG. 3 is a more specific diagram illustrating the configuration of the second embodiment of the present invention in use. 1... Catheter, 2... Living body, 3... In-body connector, 6... Affected area, 7... Coaxial cable, 8...
Internal coil, 9... Ultrasonic transducer, 10... Ultrasonic transducer, 13... Extracorporeal coil, 15...
signal cable. oh

Claims (1)

[Claims] a transmitting/receiving connector portion that is placed near the body surface of the living body and electrically connects an external signal cable in a detachable manner; an ultrasonic transducer that is located near the affected area in the living body;
An indwelling ultrasound probe comprising: an ultrasound signal transmission cable that is indwelled in the living body and has one end connected to the transmission/reception connector section and the other end connected to the ultrasound transducer.