JPH09239031A - Injector mounting ultrasonic vibrator transducer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an injector where an ultrasonic vibrator is mounted, where insertion to a human body is facilitated by impressing ultrasonic wave on the tip of the injector. SOLUTION: The injector 1 is constituted in such a way that an injecting needle 3 is mounted at the top of a injector mainbody 2, a rod 4 is inserted from the end part of the injector mainbody 2, the rod 4 is pressed and, then, a liquid inside the injector mainbody 2 is injected through the injecting needle 3. The injecting needle 3 is inserted into the center hole of a ring-shaped ultrasonic vibrator 5 so as to be tightly fixed and A.C. power is impressed on the ultrasonic vibrator 5 from an A.C. power source 6. In the injector where the ultrasonic vibrator is mounted with such configuration, ultrasonic wave is transmitted to the tip of the injecting needle 3 when injecting is executed by impressing A.C. power on the ultrasonic vibrator transducer 5. Therefore, no pain is felt at all at the time of inserting the injecting needle into the human body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a syringe equipped with an ultrasonic vibrator which applies ultrasonic waves to the tip of an injection needle to facilitate insertion into a human body.

[0002]

2. Description of the Related Art Generally, as a medical treatment method in a medical field, there is injection of a liquid medicine into a human body by means of a syringe. However, when the syringe is inserted into the human body, it causes pain and discomfort. In order to measure, the metal surface of the injection needle has conventionally been coated with silicon or the like,
An injection needle designed to improve the smoothness of the metal surface has been used.

[0003]

However, when such a silicone-treated injection needle is used, silicon may be injected into the human body, but it is generally said that silicon is carcinogenic. Therefore, there is a drawback that cancer may occur if injection is continued with such an injection needle.

[0004]

According to the present invention, an injection needle is attached to the tip of a syringe body, and a rod inserted into the syringe body injects the liquid in the syringe body from the injection needle. In a syringe, the injection needle is inserted and fixed in close contact with the central hole of the ring-shaped ultrasonic transducer,
An alternating current output is applied to the ring-shaped ultrasonic transducer from an alternating current power source.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, an ultrasonic transducer is attached between an injection needle or a syringe main body or between the injection needle and the injection syringe main body, and ultrasonic waves are applied to the injection needle, so that the injection needle can be applied to the human body. It can be inserted smoothly, and the human body can feel no pain.

[0006]

FIG. 1 is a side view of an injector equipped with an ultrasonic transducer according to an embodiment of the present invention. The injector 1 has an injection needle 3 attached to the tip of a syringe body 2 and the end of the syringe body 2. When the rod 4 is inserted from the portion and the rod 4 is pressed, the liquid in the syringe body 2 is configured to be injected through the injection needle 3. The injection needle 2 is inserted and fixed in close contact with the central hole of the ultrasonic wave oscillator 5, and alternating current power is applied to the ultrasonic wave oscillator 5 from the alternating current power source 6.

In the syringe equipped with the ultrasonic vibrator of the present embodiment having the above-described structure, when AC power is applied to the ultrasonic vibrator 5 for injection, ultrasonic vibration is transmitted to the tip of the injection needle 3. Therefore, no pain is felt at the time of inserting the injection needle 3 into the human body.

FIG. 2 is a side view of an injector equipped with an ultrasonic transducer according to another embodiment of the present invention. 1 is a syringe 1, 2 is a syringe body, 3 is a needle, 4 is a rod, and 5 is a ring. The ultrasonic transducer 6 is an AC power supply, and the configuration thereof is almost the same as that of the above-mentioned embodiment, so the description thereof will be omitted. In this embodiment, the syringe main body is provided in the center hole of the ring-shaped ultrasonic transducer 5. Is inserted and fixed.

Even in the syringe equipped with the ultrasonic vibrator of this embodiment having the above-mentioned structure, when the ultrasonic vibrator 5 is injected by applying AC power, the ultrasonic vibration is transmitted to the tip of the injection needle 3. Therefore, no pain is felt at the time of inserting the injection needle 3 into the human body.

FIG. 3 is a side view of a syringe equipped with an ultrasonic transducer according to still another embodiment of the present invention.
Is a syringe main body, 3 is an injection needle, 4 is a rod, and 6 is an AC power source. Since these configurations are almost the same as those in the above-mentioned embodiment, the description thereof will be omitted. The tip 2a of the syringe main body 2 is fixed by inserting the tip 2a into the center hole of the Langevin type vibrator 7 and fixing it.
The injection needle 3 is attached to.

Even in the syringe equipped with the ultrasonic vibrator of the present embodiment having the above-mentioned structure, when AC power is applied to the ultrasonic vibrator 7a of the Langevin type vibrator 7, injection is performed.
Ultrasonic vibration is transmitted to the tip of the injection needle 3, and no pain is felt when the injection needle 3 is inserted into the human body.

FIG. 4 is a side view of a syringe equipped with an ultrasonic transducer according to still another embodiment of the present invention, wherein 1 is a syringe,
Reference numeral 2 is a syringe body, 3 is an injection needle, 4 is a rod, and 6 is an AC power source. Since these configurations are almost the same as those in the above-described embodiment, description thereof will be omitted. 2 a is configured to be long, the tip 2 a is inserted and fixed in the center hole of the horn type vibrator 8, and the tip of the horn type vibrator 8 is attached to the injection needle 3.

Even in the injector equipped with the ultrasonic vibrator of the present embodiment having the above-mentioned structure, when injection is performed by applying AC power to the ultrasonic vibrator 8a of the horn type vibrator 8, the tip of the injection needle 3 is injected. Ultrasonic vibrations are transmitted to, and no pain is felt when the injection needle 3 is inserted into the human body.

In the present invention, in addition to the above embodiment, the syringe body may be inserted and fixed in the hole of the metal ring, and the ultrasonic wave may be transmitted from the ultrasonic transducer to the metal ring.
An ultrasonic transducer may be fixed to the rod portion. As is apparent from the above description, in the syringe equipped with the ultrasonic vibrator of the present invention, the ultrasonic vibrator is mounted on the syringe body or the injection needle or in the vicinity thereof, so that the ultrasonic vibration There is an advantage that ultrasonic waves generated from the child can be transmitted to the injection needle so that no pain is felt when the injection needle is inserted into the human body.

[Brief description of drawings]

FIG. 1 is a side view of an injector equipped with an ultrasonic transducer according to an embodiment of the present invention.

FIG. 2 is a side view of a syringe equipped with an ultrasonic transducer according to another embodiment of the present invention.

FIG. 3 is a side view of a syringe equipped with an ultrasonic transducer according to another embodiment of the present invention.

FIG. 4 is a side view of a syringe equipped with an ultrasonic transducer according to another embodiment of the present invention.

[Explanation of symbols]

 1 Syringe 2 Syringe main body 3 Injection needle 4 Rod 5 Ultrasonic vibrator 6 Power supply 7 Langevin type vibrator 8 Horn type vibrator

Claims (4)

[Claims] 1. A syringe in which a syringe needle is attached to the tip of a syringe body and a liquid inserted in the syringe body is injected from the syringe needle by a rod inserted into the syringe body. An injector equipped with an ultrasonic vibrator, characterized in that the ultrasonic vibrator is inserted and fixed in close contact with a central hole of the ultrasonic vibrator and an AC output is applied to the ring-shaped ultrasonic vibrator from an AC power source. 2. A syringe in which a syringe needle is attached to the tip of the syringe body, and a liquid inserted in the syringe body is injected from the needle by a rod inserted into the syringe body. An injector equipped with an ultrasonic vibrator, characterized in that the ultrasonic vibrator is inserted and fixed in close contact with a central hole of the ultrasonic vibrator and an AC output is applied to the ring-shaped ultrasonic vibrator from an AC power source. 3. A syringe in which a syringe needle is attached to the tip of the syringe body, and a liquid inserted in the syringe body is injected from the syringe needle by a rod inserted into the syringe body, the syringe needle and the syringe. An injector equipped with an ultrasonic vibrator, wherein the tip of the main body is inserted and fixed in the center hole of the Langevin type vibrator, and an AC output is applied from an AC power source to the ultrasonic vibrator of the Langevin type vibrator. 4. A syringe in which an injection needle is attached to the tip of a syringe body, and a liquid inserted in the syringe body is injected from the injection needle by a rod inserted in the syringe body, the injection needle and the syringe. An injector equipped with an ultrasonic vibrator, characterized in that a horn-type vibrator is mounted between the main bodies, and an AC output is applied to the ultrasonic vibrator of the horn-type vibrator from an AC power source.