JPH0314451B2 - - Google Patents

Description

[Detailed Description of the Invention] Conventionally, the material of a tube through which liquid can flow, such as a medical catheter or a blood transport tube using a vinyl tube, has a specific gravity that is approximately the same as or greater than the specific gravity of the internal fluid of the tube. When an ultrasonic wave is transmitted as a medium, the sound wave propagates from the inner wall of the tube to the outer wall of the tube to the water or liquid outside the tube, making it extremely difficult for medical or industrial purposes to transmit the ultrasonic wave from a remote location to the target affected area.

The present invention aims to solve the above problems.

In order to achieve the above object, the present invention provides a tube 1 containing an ultrasonic transport medium made of liquid.
and an ultrasonic transport tube comprising an aggregate of bubbles having a specific gravity smaller than the specific gravity of the medium.

To explain the embodiment of the present invention shown in the drawings, a thin tube 1 is formed by an aggregate of air bubbles made of foamed synthetic resin as the material 4, and a liquid (solution or medicinal solution) is used as the ultrasonic transport medium to form a medical catheter. I can do it. The material 4 between the carrier medium and the inner and outer peripheries 3 of the tube 1 is in a gas phase and has a specific gravity significantly lower than the specific gravity of the ultrasonic carrier medium inside the tube 1. It should be noted that what is indicated by 5 in the figure is countless microbubbles within the material 4.

Therefore, the above-mentioned tube 1 is used as a medical catheter, inserted into a blood vessel, and the distal end thereof reaches the affected area, and at the same time, a medicinal liquid is delivered to the affected area through the tube 1 from outside the human body. Ultrasonic vibrations are applied to the chemical solution in the tube 1. In this way,
The sound waves are reflected and transmitted through the bent tube 1 through the medicinal solution in the tube 1, reach the affected area, and vibrate the affected area. Due to this vibration, the medicinal solution acts on the affected area and can treat the affected area. The ultrasound delivery medium may be a Ringer's solution in addition to the drug solution.
The ultrasonic conveying medium at the tip of the tube is brought into contact with the target stone, and strong ultrasonic vibrations are applied to only the target stone from the outside. Since there is no leakage of ultrasonic waves from the middle of the tube 1, it is possible to crush the stone extremely safely. Furthermore, by simultaneously injecting the stone dissolving drug into the tube 1, the drug dissolving efficacy is significantly increased due to the synergistic effect with the ultrasonic vibration.

For ultrasonic diagnosis, the tube 1 is inserted deep into the body and ultrasonic pulses having an incident angle are emitted from the outer tube opening, and can be used as an echo diagnostic probe having a sound source deep in the body. Industrially, the main pipe can be transmitted remotely as physical ultrasonic vibration energy, so it can be used not only for communication but also in narrow bends, underwater, or near explosives (no electrical system involved), etc., without being subject to location restrictions. The scope of use can be expanded.

Since the present invention is constructed as described above, the pipe 1
When ultrasonic vibration is applied to the ultrasonic transport medium inside the tube 1 from the outside, there is no risk that the sound wave will propagate to the outside of the tube 1 through the material 4 of the tube 1, and Ultrasonic refraction and transport to a target object in a diseased area or liquid can be carried out extremely easily and efficiently without being affected by ultrasound waves from the surrounding area, thereby significantly improving the safety and efficiency of medical or industrial methods. There are benefits to be gained.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the ultrasonic transport tube of the present invention, and FIG.
The figure is an enlarged view of the gas phase coating. 1...Pipe, 4...Material.

Claims (1)

[Claims] 1. A tube 1 containing an ultrasonic transport medium made of liquid.
An ultrasonic transport tube comprising an aggregate of bubbles having a specific gravity smaller than the specific gravity of the medium. 2. The ultrasonic transport tube according to claim 1, wherein the tube 1 is a medical catheter.