JP2008212616A - Painless injection needle for medical application - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem of a current injection needle when being inserted with extreme pain and bleeding by cutting the inserted point, and generating useless stress of a patient and making it difficult to inject a patient having need of frequent injection depending on the levels and kinds of diseases because the injected point is hardened. <P>SOLUTION: In the painless injection needle, a cutting edge of an injection needle disappears and the needle is inserted without damaging a tissue on reaming during injection, and it performs insertion of a drug solution or blood draw from the side of needle body and so it can eliminate the pain and remove stress. Herewith, the therapeutic effect can improve dramatically. Further in this method, when the frequency of injection increases, a skin or a muscle never become hardened at the injected point. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to the shape of an injection needle of a syringe.

Background technology

The tip of the injection needle of a conventional syringe is sharply polished by cutting the tip of a hollow injection needle body obliquely. As a result, the needle tip is inserted into the skin, blood vessel, or muscle of the target site, and a chemical solution is injected, or blood is collected. However, this method cuts tissue such as skin, blood vessels, muscles and the like when inserting, and causes great pain to the patient and causes bleeding. Moreover, since the puncture mark is a cut, it takes a considerable amount of time to recover even if it is used to stop bleeding, prevent suppuration or other hygienic measures. If it is repeated by hurting the puncture site, the skin and muscles will be cured.

  It is also used to insert a needle into an infusion bag or container stopper for infusion, and to suck out the chemical. In this case, if a thick needle is used, the debris of this stopper will be removed from the chemical. There is also a risk of contamination.

  The problem to be solved is to eliminate the pain at the time of needle insertion or remove the stress of the patient to enhance the treatment effect and at the same time minimize the wound at the insertion site, Muscle hardening can be prevented, and contamination of the plug material can also be prevented when the chemical solution is injected.

  In the present invention, in order to achieve the above object, the shape of the injection needle is a so-called pine needle shape, and the injection hole for the chemical solution varies depending on the thickness of the needle and the purpose of use of the injection. Place 2-6 locations at a distance of ~ 4mm, and perpendicular to the needle.

  This invention is painless or slightly painful at the time of needle insertion when performing injection or the like as described above, and does not see bleeding even after treatment, even if compared with the case by the conventional method Because it is extremely small, the patient can receive injections, blood collection, etc. with peace of mind, so that unnecessary stress is not applied, and a great therapeutic effect can be achieved. In the case of blood transfusion, infusion, etc., there is no worry of foreign matters such as the same top fragments, so it is safe.

  When inserted into a drip infusion bag or a container stopper, no fragments of the stopper material are generated, so no foreign matter is mixed into the drug solution.

Best Mode for Carrying Out the Invention

      When the needle is inserted by injection or the like as described above, the tip of the needle is pushed into the skin, so that the insertion is performed while expanding the tissue without cutting or damaging the tissue such as the skin or blood vessels. Therefore, the patient feels no pain or only slight pain.

  It is the external appearance of the needle body and tip of an injection needle.   It is sectional drawing which cut the needle body of the injection needle with the line of AB of FIG.

Claims (1)

  An injection needle having a tip shape in the shape of a pine needle similar to the shape of an acupuncture acupuncture needle and having about 2 to 6 drug solution injection holes in a portion of a needle handle near the tip.

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