Filter syringe

Abstract

The present invention relates to a syringe and, more particularly, to a syringe which filters foreign matter therein in the case where, whenever liquid medicine for treatment, such as an analgesic, is suctioned by the needle of the syringe from an ampule containing the liquid medicine or the like and is then passed through the needle again during injection, the foreign matter stays trapped in the syringe when the body is being injected and the foreign matter is in the state of having been suctioned into the syringe through the needle. According to the present invention, the filter for filtering the foreign matter can be mounted on the syringe in a simple manner.

Description

technical field [0001] The present invention is an invention of a syringe, especially when injecting an analgesic and other medicinal liquid for therapeutic purposes, the medicinal liquid is sucked into the syringe through the injection needle from the ampoule containing such medicinal liquid, and then injected When the needle is re-injected, the foreign matter generated in the ampoule, etc. is sucked into the syringe through the injection needle, and it functions to filter such foreign matter from the syringe when it is injected into the human body. [0002] And the filter with the above-mentioned filtering effect is installed on the syringe, not only can be injected into the human body, but also can be used in the injection of the cannula, and the simple operation of inserting such a filter can prevent aspiration and injection. detachment phenomenon. Background technique [0003] In general, a syringe is composed of a syringe body and an injection needle. When injecting a...

AI Technical Summary

Problems solved by technology

[0005] Therefore, according to the recent Figure 7 as well as Figure 8 As shown, a filter is provided inside the injection needle fixing member of the detachable injection needle installed at the front end of the syringe, and through the injection needle, the above-mentioned mixed or liquid medicine is sucked into the syringe body through the piston In the cylinder, foreign matter such as glass powder will be filtered out at this time. Although this plan is proposed, the injection needle used must be replaced at this time before being injected into the human body. When forgetting to switch, foreign matter attached to the filter will be directly injected into the human body

[0006] However, if you just switch the injection needle, you will be infected by the surrounding virus, and because the series of operations are too complicated, you cannot quickly deal with the problem of emergency patients. Many, each injection, because of the use of many injection needles, resulting in a large amount of medical waste, which has a bad impact on the environment

[0007] In particular, this kind of medical waste needs to be treated individually, which is different from general waste, which causes the problem of increased treatment costs.

[0008] And the installation of the filter installed on the injection needle, because the internal area of ​​the fixing member with the injection needle is too narrow, with the installation of the filter, especially due to the bottleneck during injection, excessive pressure is brought, Therefore, in order to inject patients, a lot of force is required to pressurize the piston, which not only brings stability to the medical team, but also causes treatment paralysis of the infected patients according to the amount of medicine injected to the infected patients. sequelae, so there is a risk of safety accidents

[0009] Therefore, the applicant of the present patent proposes a bidirectional filter needle installed on the fixing member of the injection needle for the filter needle to solve such problems. On the way, when injecting other liquid medicines, this type of filter needle cannot be used, and there are many problems with the contact pressure due to the size limitation when it is installed on the injection needle.

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