KR101245378B1 - Filter needle - Google Patents

Filter needle Download PDF

Info

Publication number
KR101245378B1
KR101245378B1 KR1020110112458A KR20110112458A KR101245378B1 KR 101245378 B1 KR101245378 B1 KR 101245378B1 KR 1020110112458 A KR1020110112458 A KR 1020110112458A KR 20110112458 A KR20110112458 A KR 20110112458A KR 101245378 B1 KR101245378 B1 KR 101245378B1
Authority
KR
South Korea
Prior art keywords
filter
needle
fixing member
chemical liquid
filter structure
Prior art date
Application number
KR1020110112458A
Other languages
Korean (ko)
Inventor
김근배
Original Assignee
김근배
주식회사 쟈마트
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to KR1020110112458A priority Critical patent/KR101245378B1/en
Application filed by 김근배, 주식회사 쟈마트 filed Critical 김근배
Priority to CN201280017314.1A priority patent/CN103492009B/en
Priority to EP12767676.5A priority patent/EP2695629B1/en
Priority to CN201610807283.XA priority patent/CN106237444B/en
Priority to US14/009,240 priority patent/US9265883B2/en
Priority to SG2013076062A priority patent/SG194174A1/en
Priority to JP2014503605A priority patent/JP5817050B2/en
Priority to CN201610807229.5A priority patent/CN106362253B/en
Priority to PCT/KR2012/002632 priority patent/WO2012138177A2/en
Application granted granted Critical
Publication of KR101245378B1 publication Critical patent/KR101245378B1/en
Priority to US14/498,614 priority patent/US9314570B2/en

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/3145—Filters incorporated in syringes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/22—Valves or arrangement of valves
    • A61M39/24—Check- or non-return valves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/1782—Devices aiding filling of syringes in situ
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3293—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles characterised by features of the needle hub
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
    • A61M5/344—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub using additional parts, e.g. clamping rings or collets
    • A61M5/345—Adaptors positioned between needle hub and syringe nozzle
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/36—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests with means for eliminating or preventing injection or infusion of air into body
    • A61M5/38—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests with means for eliminating or preventing injection or infusion of air into body using hydrophilic or hydrophobic filters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M2005/3128—Incorporating one-way valves, e.g. pressure-relief or non-return valves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/75—General characteristics of the apparatus with filters
    • A61M2205/7527—General characteristics of the apparatus with filters liquophilic, hydrophilic
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/165—Filtering accessories, e.g. blood filters, filters for infusion liquids

Landscapes

  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Vascular Medicine (AREA)
  • Pulmonology (AREA)
  • Emergency Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

PURPOSE: A filter needle is provided to prevent foreign materials from being re-injected into a patient. CONSTITUTION: A filter needle comprises an injection needle(2) and a fixing member(2a) for fixing the injection needle to a syringe cylinder(100). A filter is installed in the fixing member and filters foreign materials contained in medicinal fluid. The filter needle comprises a filter assembly body(1) which is comprised of a circular body(10) and is formed with an inlet and outlet. The inlet and outlet can be opened in different directions.

Description

필터 니들{filter needle}Filter needle {filter needle}

본 발명은 주사기에 장착하여 사용하는 필터 니들에 관한 것으로, 특히 앰플의 약액을 충진할 경우에 이물질이 주사바늘에 남지 않도록 주사기 내부로 모두 흡입하면서도 약액을 주사할 경우에는 주사기 내부에 있는 이물질을 필터링하여 주사바늘의 교체 없이 주사가 용이토록 한 것이다.The present invention relates to a filter needle used for mounting in a syringe, in particular, when filling the ampoule, the foreign matter inside the syringe while inhaling all the inside of the syringe so as not to remain in the injection needle to filter the foreign matter inside the syringe Therefore, the injection is easy without replacing the needle.

일반적으로 주사기는 감염환자에게 투여할 때 사용하는 것이어서 주사과정에서 2차 감염이 발생되는 것을 방지하기 위하여 주로 일회용 주사기가 사용되고, 이러한 1회용의 주사기는 액상과 분말을 혼합하거나 또는 액상만을 주입하게 되는데, 이때 액상은 주로 유리나 플라스틱으로 제조된 앰플에 담겨져 있으므로 앰플을 오픈할 경우에 유리 가루나 플라스틱 기타 불순물가루가 발생되고 따라서 액상을 주사기로 빨아들이면 이물질이 액상과 동시에 빨려지게 됨으로서 이러한 것을 걸러주는 기능이 없어 결국 인체에 주사할 경우에 동시에 주사되므로 많은 부작용이 우려되는 것이다.In general, a syringe is used to administer to an infected patient, so a disposable syringe is mainly used to prevent the occurrence of a secondary infection in the injection process, and such a disposable syringe mixes liquid and powder or injects only a liquid. In this case, the liquid is contained in ampoules made mainly of glass or plastic, so when the ampoule is opened, glass powder or plastic or other impurity powder is generated. There is not a lot of side effects because it will be injected at the same time when injected into the human body eventually.

즉, 이러한 앰플은 보관 및 운송중에 오염을 방지하기 위하여 앰플병이 대부분 유리로 제조된 경우가 많고, 이러한 앰플은 일부를 깨뜨려서 투입구를 만들거나 고무로 막혀있는 마개에 주사바늘을 강제로 삽입하여 약액을 빨아들이게 되는데, 이 과정에서 미세한 유리가루 또는 고무조각이 약액에 섞여서 주사기로 유입되는 문제가 있는 것이고, 결국에는 이러한 이물질이 약액과 함께 환자에게 투여되는 것이다.In other words, the ampoules are often made of glass in order to prevent contamination during storage and transportation, and these ampoules are made by breaking some of the ampoules or by inserting a needle into a rubber plug. In this process, the liquid is sucked in. In this process, fine glass powder or rubber fragments are mixed into the chemical liquid and introduced into the syringe. Eventually, these foreign substances are administered to the patient together with the chemical liquid.

따라서 최근에는 도 9 및 도 10에 도시된 바와 같이 주사바늘 고정부재 내에 필터를 설치하여 주사바늘을 통해 약물을 실린더 내로 빨아들일 때 유리가루 등과 같은 이물질을 걸러낼 수 있도록 한 것이 제안되었으나, 이 경우 주사바늘의 교체없이 그대로 환자에게 주사하게 될 경우 필터에 붙어있는 이물질이 그대로 다시 환자에게 주입되어지는 문제가 있는 것이다.Therefore, recently, it has been proposed to install a filter in the needle holding member as shown in FIGS. 9 and 10 to filter foreign substances such as glass powder when the drug is sucked into the cylinder through the needle. If the patient is injected into the patient without replacing the needle, there is a problem that the foreign matter attached to the filter is injected into the patient as it is.

따라서 실질적으로 의료현장에서는 약액을 주사기로 흡입하여 충진시킬 때에는 필터를 장착한 주사바늘을 사용하고, 약액을 충진한 후에 환자에게 약액을 주입할 때에는 주사바늘을 새것으로 교체한 후 주사토록 하게 되는 것이다.Therefore, in the medical field, a needle equipped with a filter is used to inject and fill a medicine with a syringe, and when a medicine is injected into a patient after filling the medicine, the needle is replaced with a new one to be injected. .

따라서 환자에게 주사시 이러한 일련의 작업들이 매우 번거로울 뿐만 아니라, 응급환자에게 신속히 대처할 수 없고, 또한 이러한 일회용 주사기는 하루에도 매우 많은 양을 사용하는데 한번 주사시에 주사바늘을 복수로 사용함에 따라 의료폐기물이 기하급수적으로 증가하여 환경에 악영향을 미치게 되는 것이다.This not only makes this series of tasks cumbersome when injected into patients, but also makes it impossible to respond quickly to emergency patients, and also these disposable syringes use very large amounts per day, with multiple injection needles in a single injection. This is an exponential increase, adversely affecting the environment.

특히 이러한 의료폐기물은 일반 폐기물과는 별도로 구분되어 처리토록 하는데, 이에 따른 처리비용이 증가하게 되는 문제가 있는 것이다.In particular, such medical waste is to be separated from the general waste to be treated, there is a problem that the treatment cost increases accordingly.

그리고 이러한 필터가 장착된 주사바늘을 사용하여 약액을 환자에게 주사할 경우 넓은 공간을 갖는 주사기 실린더에 비해서 그 주사바늘 내부 필터의 필터링되는 면적이 너무 협소하기 때문에 필터부분에서 약액의 병목현상이 발생되면서 압력이 높아지게 되는 것이고, 따라서 약액을 환자에게 주사하기 위하여 피스톤을 가압하는데 많은 힘이 들어가게 되므로 의료진에게는 불편함을 초래할 뿐만 아니라, 약액을 안정적으로 주사하기에 어려움이 있어 안전사고의 위험이 있는 것이다.In case of injecting the drug solution to the patient using the needle equipped with the filter, the bottleneck of the drug solution occurs in the filter part because the filter area of the filter inside the needle is too narrow compared to the syringe cylinder having a large space. The pressure is increased, and thus, a lot of force is put into the piston to inject the medicine into the patient, which not only causes inconvenience to the medical staff, but also makes it difficult to stably inject the medicine, thereby causing a safety accident.

따라서 본 발명은 필터 니들의 간단한 구조개선으로 환자에게 약액을 주사할 때 이물질이 함께 주사되는 것을 필터를 통하여 완벽하게 걸러낼 수 있도록 하면서도 약액을 충진과 주사과정에서 주사바늘의 교체없이 그대로 환자에게 주사함에도 불구하고 이물질이 약액과 함께 환자에게 재투여되는 것을 방지토록 한 것이다.Therefore, the present invention provides a simple structure improvement of the filter needle while injecting the drug solution to the patient to completely filter the injection of foreign substances through the filter while injecting the drug solution as it is without changing the needle in the filling and injection process Nevertheless, the foreign substance is prevented from being re-administered with the liquid.

또한, 이러한 필터 니들을 저렴한 비용으로 간단하게 제작이 가능토록 하고, 또한, 약액의 주사시 필터에 가중되는 압력을 분산시켜 약액을 필터링함으로써 피스톤의 가압을 용이하게 할 수 있도록 한 것이다.In addition, it is possible to easily manufacture such a filter needle at a low cost, and to facilitate the pressurization of the piston by filtering the chemical liquid by dispersing the pressure added to the filter during the injection of the chemical liquid.

이를 위하여 본 발명은 주사바늘과 일체로 형성되는 고정부재에 필터구조체를 내장하고, 상기 필터구조체의 테두리 부분으로는 흡입구를 형성하면서 필터구조체의 중앙부분으로는 배출구를 각각 형성하여 각 흡입구와 배출구가 서로 다른 방향으로 체크밸브 구조에 의하여 일방향으로만 개방되도록 하여 흡입경로와 배출경로를 구분토록 하면서 약액의 배출구측에는 이물질의 배출방지를 위한 필터를 장착함으로써 주사기에 약액을 충진할 경우에는 주사기 실린더 내부로 모든 이물질이 함께 유입되도록 하여 필터구조체의 외측에 잔류하는 이물질이 없도록 함과 동시에 약액을 주사할 경우에는 필터에 의하여 이물질이 걸러지게 되어 걸러진 이물질이 주사기 내부에 잔류하면서 이물질이 약액과 함께 환자에게 투여되는 것을 방지토록 한 것이다.To this end, the present invention incorporates a filter structure in a fixing member integrally formed with a needle, and forms an inlet at a central portion of the filter structure while forming an inlet at a central portion of the filter structure. In order to separate the suction path and the discharge path by opening the valve in one direction by the check valve structure in different directions, a filter is installed on the discharge side of the chemical liquid to prevent the discharge of foreign substances. All foreign substances are introduced together so that there is no foreign substance remaining on the outside of the filter structure, and when injecting a chemical solution, the foreign substance is filtered out by the filter. To prevent it.

또한, 배출구 측에 장착되는 필터의 형태를 후방으로 돌출되도록 길게 형성하여 약액이 맞닿아 걸러지도록 되는 필터의 단면적을 늘려 약액의 흡입 및 배출시에 압력의 분산이 이루어지도록 되면서 더욱 원활히 피스톤작동이 이루어지도록 한 것이다.In addition, the shape of the filter mounted on the outlet side is formed long to protrude rearward to increase the cross-sectional area of the filter that the chemical liquid is in contact with the filter to achieve a pressure distribution during the intake and discharge of the chemical liquid is more smoothly piston operation is made It was to lose.

따라서 본 발명은 약액을 흡입하고 배출하는 라인이 구분되므로 약액 배출시 이물질이 함께 투여될 우려가 없고, 이에 따라 주사바늘을 교체할 필요없이 약액을 흡입한 후 바로 주사가 가능하므로 편리할 뿐만 아니라, 적은 힘으로도 피스톤을 가압하여 주사할 수 있음으로 위급환자에게 신속한 대응이 가능한 것이다.Therefore, the present invention is divided into a line for inhaling and discharging the drug solution, so there is no fear that foreign substances are administered together when discharging the drug solution. It is possible to pressurize the piston with a small force and to respond quickly to emergency patients.

또한, 주사기로 흡입한 약액에 미세한 이물질이 함유되어 있다 하더라도 배출구에 장착되어 있는 필터에 의하여 걸러져 실린더 내부에 잔류하므로 환자에게 약액을 주사시 이물질이 배출될 우려가 전혀 없으며, 보다 안전한 치료를 받을 수 있는 것이다.In addition, even if the foreign substance inhaled with a syringe contains fine foreign substances are filtered out by the filter installed in the outlet and remain in the cylinder, there is no risk of foreign substances being discharged when injecting the chemical liquid to the patient, and more safe treatment can be obtained. It is.

도 1은 본 발명의 일 실시 예를 나타낸 사시도
도 1a는 본 발명의 필터구조체의 저면사시도
도 1b는 고정부재의 일 실시 예를 나타낸 단면도
도 2는 본 발명의 필터 니들의 장착상태 부분확대 단면도
도 2a는 본 발명의 고정부재의 또 다른 구조를 나타낸 단면도
도 3은 본 발명의 약액 흡입구조를 나타낸 단면도
도 4는 본 발명의 약액 배출구조를 나타낸 단면도
도 5은 본 발명의 필터 니들의 또 다른 실시 예를 나타낸 사시도
도 5a는 도 5의 필터구조체의 저면사시도
도 6는 도 5의 필터 니들의 장착상태 부분확대 단면도
도 7은 도 5의 필터 니들의 약액 흡입구조를 나타낸 단면도
도 8는 도 5의 필터 니들의 약액 배출구조를 나타낸 단면도
도 9는 종래의 주사기의 필터구조를 나타낸 분해 사시도
도 10은 종래의 주사기의 필터구조를 나타낸 장착 단면도1 is a perspective view showing an embodiment of the present invention.
1A is a bottom perspective view of the filter structure of the present invention.
Figure 1b is a cross-sectional view showing an embodiment of the fixing member
Figure 2 is an enlarged cross-sectional view of the mounting state of the filter needle of the present invention
Figure 2a is a cross-sectional view showing another structure of the fixing member of the present invention
Figure 3 is a cross-sectional view showing a chemical liquid inhalation structure of the present invention
Figure 4 is a cross-sectional view showing a chemical liquid discharge structure of the present invention
5 is a perspective view showing another embodiment of the filter needle of the present invention
5A is a bottom perspective view of the filter structure of FIG. 5.
6 is a partially enlarged cross-sectional view of the mounting state of the filter needle of FIG.
7 is a cross-sectional view showing a chemical liquid suction structure of the filter needle of FIG.
8 is a cross-sectional view showing a chemical liquid discharge structure of the filter needle of FIG.
9 is an exploded perspective view showing a filter structure of a conventional syringe
10 is a mounting cross-sectional view showing a filter structure of a conventional syringe

이하 본 발명에 따른 바람직한 실시 예를 첨부한 도면을 참조하여 설명하면 다음과 같다.Hereinafter, preferred embodiments according to the present invention will be described with reference to the accompanying drawings.

본 발명은 도 1 및 도 1b에 도시된 바와 같이 실린더(100)와 피스톤(110)으로 이루어진 주사기 본체의 전단부에 필터 니들, 즉 주사바늘(2)과 그 주사바늘(2)을 고정하는 고정부재(2a)에 필터구조체(1)를 삽입하어 이루어진 것을 끼워 약액에 함유되어 있는 이물질을 걸러 주사할 수 있도록 한 것으로, 그 필터구조체(1)와 고정부재(2a)의 조립구조상에 흡입구(1a)와 배출구(1b)가 형성되도록 하고, 각각의 흡입구(1a)와 배출구(1b)는 체크밸브 구조에 의하여 서로 역방향으로만 개방이 가능토록 하여 약액의 유입경로와 배출경로를 구분하면서 약액 주사시에 필터에 의하여 이물질이 걸러지도록 한 것이다.The present invention is fixed to the filter needle, that is, the injection needle (2) and the needle (2) to the front end of the syringe body consisting of the cylinder 100 and the piston 110 as shown in Figure 1 and 1b The filter structure 1 is inserted into the member 2a to insert and filter the foreign matter contained in the chemical liquid, and the suction port 1a is formed on the assembly structure of the filter structure 1 and the fixing member 2a. ) And outlet 1b are formed, and each inlet 1a and outlet 1b can be opened in the opposite direction only by the check valve structure to separate the inflow and outflow paths of the chemical liquid, The foreign matter is filtered out by the filter.

즉, 주사기는 약물이 충진되도록 내공간을 갖는 실린더(100)에 피스톤(110)이 내장되어 피스톤(110)의 전,후진 작동에 의하여 전방, 또는 후방으로 압력을 발생시키게 되는데, 주사기에 앰플을 끼운 상태에서 피스톤(110)을 후방으로 당기면 실린더(100)가 진공상태가 되면서 후방으로 흡입력을 발생시키고 이에 따라 흡입구(1a)를 개방하여 앰플에 담겨져 있는 약액을 흡입하여 실린더 내부로 빨아들이게 되는 것이고, 그 상태에서 주사바늘(2)에 끼워져 있는 앰플을 제거한 후 전방으로 피스톤(110)을 밀어서 실린더(100) 내부에 압력을 발생시키면 충진되어 있는 약액을 배출구(1b)를 통하여 외부로 배출시켜 환자에게 주사가 이루어지게 된다.That is, the syringe is a piston 110 is built in the cylinder 100 having an inner space to fill the drug to generate pressure forward or backward by the forward, backward operation of the piston 110, the ampoule in the syringe When the piston 110 is pulled backward in the inserted state, the cylinder 100 becomes a vacuum state and generates suction force in the rear, and accordingly, the suction port 1a is opened to suck the chemical liquid contained in the ampoule and suck it into the cylinder. After removing the ampoule inserted in the needle 2 in this state, the piston 110 is pushed forward to generate pressure in the cylinder 100, and the filled chemical is discharged to the outside through the discharge port 1b. An injection is made to.

이때, 상기 필터구조체(1)는 원형본체(10)의 외측과 중앙부에 각각 흡입구(1a)와 배출구(1b)를 형성하여여 흡입경로와 배출경로가 구분되도록 하면서 배출구(1b)에는 필터(20)를 내장하면 약액의 충진시에 주사기 실린더(100)로 유입된 이물질이 약액의 배출시에는 필터(20)에 의하여 걸러지면서 주사바늘(2)을 통하여 외부로 배출되지 않고 실린더 내부에 잔류토록 되는 것이다.At this time, the filter structure (1) is formed in the inlet port (1a) and the outlet port (1b) on the outside and the center of the circular body 10, respectively, so that the inlet path and the discharge path to distinguish the filter (20) ), The foreign substances introduced into the syringe cylinder 100 during the filling of the chemical liquid are filtered out by the filter 20 during the discharge of the chemical liquid and are not discharged to the outside through the needle 2 so that they remain inside the cylinder. will be.

이러한 필터구조체(1)의 구조와 고정부재(2a)와의 결합관계를 더욱 상세히 설명하면, 도 1 내지 도 2에 도시된 바와 같이 상기 원형본체(10)의 외경이 고정부재(2a)의 내경과 이격된 상태로 이루어지도록 하면서 고정부재(2a)의 내경에는 원형본체(10)의 외경에 맞닿도록 도 1b와 같이 돌출되게 두 개 이상의 복수의 기둥부(13)를 형성함으로써 각각의 기둥부(13) 사이에 형성되는 이격공간(14)을 통하여 원형본체(10)의 외측 둘레에 흡입구(1a)를 형성하고, 원형본체(10)의 외경 하단에는 고정부재(2a)의 내경에 밀착되도록 경사지게 테두리막(11)을 형성하여 테두리막(11)이 고정부재(2a)의 내경과 밀착되거나 떨어지면서 흡입구(1a)가 차단되거나 또는 개방되도록 한 것이다.When explaining the coupling relationship between the structure of the filter structure (1) and the fixing member (2a) in more detail, as shown in Figure 1 to 2 the outer diameter of the circular body 10 and the inner diameter of the fixing member (2a) Each pillar portion 13 by forming two or more pillar portions 13 to protrude as shown in FIG. 1B so as to contact the outer diameter of the circular body 10 at the inner diameter of the fixing member 2a while being spaced apart. Inlet 1a is formed on the outer circumference of the circular body 10 through the spaced space 14 formed between the), the outer edge of the circular body 10 is inclined to be in close contact with the inner diameter of the fixing member (2a) The membrane 11 is formed so that the inlet 1a is blocked or opened while the edge membrane 11 is in close contact with or dropped from the inner diameter of the fixing member 2a.

이때, 상기 기둥부(13)는 4개 또는 도 1b와 같이 6개로 형성함이 가장 바람한 것이지만, 이러한 기둥부(13)의 갯수는 약액의 흡입량을 조절하거나 또는 설계상 다양한 갯수로 형성할 수 있는 것이다.At this time, the pillar portion 13 is the most preferred to form four or six as shown in Figure 1b, but the number of the pillar portion 13 can be formed in various numbers by adjusting the amount of inhalation of the chemical or by design It is.

또한, 원형본체(10)의 중앙부에는 상측방향, 즉 주사바늘(2)이 형성된 방향으로 반구형의 형태로 돌출되게 가림막(12)을 형성하고, 가림막(12)의 중앙에 절개선(12a)을 형성하여 가림막(12)의 내부에 압력이 가해질 경우 주사바늘(2)이 형성된 방향으로 절개선(12a)이 벌어짐되면서 약액의 배출이 이루어질 수 있게 한 것이다.In addition, a screen 12 is formed at the center of the circular body 10 so as to protrude in a hemispherical shape in an upward direction, that is, a direction in which the needle 2 is formed, and a cut line 12a is formed at the center of the screen 12. When the pressure is applied to the inside of the shielding film 12, the incision line 12a is opened in the direction in which the needle 2 is formed so that the chemical liquid can be discharged.

따라서 도 3 또는 도 7에 도시된 바와 같이 약액의 흡입시 피스톤(110)을 당겨서 주사기 실린더(100) 내측으로 흡입력이 발생하도록 하면 흡입구(1a)에 위치되는 테두리막(11)이 고정부재(2a)의 내벽과 떨어지면서 그 사이가 벌어지게 되어 이격공간(14)이 상하로 관통되면서 흡입구(1a)가 개방되는 것이고, 피스톤(110)을 계속적으로 잡아당기게 되면 앰플에 담겨져 있는 약액을 주사기 실린더(100)에 충진할 수 있게 되는 것이다.Therefore, as shown in FIG. 3 or FIG. 7, when the piston 110 pulls the piston 110 to generate a suction force inside the syringe cylinder 100, the edge membrane 11 positioned at the suction port 1a is fixed to the fixing member 2a. When the space between the inner wall and the gap is separated and the space 14 is penetrated up and down, the inlet 1a is opened, and when the piston 110 is pulled continuously, the chemical liquid contained in the ampoule is injected into the syringe cylinder ( 100 will be able to fill.

반대로, 환자에게 주사기에 담겨진 약액을 투여하고자 할 경우에는 피스톤(110)을 밀어서 도 4 또는 도 8에 도시된 바와 같이 주사바늘 방향으로 배출력이 발생하도록 하면 배출구(1b)에 위치되는 가림막(12)의 절개선(12a)이 주사바늘 방향으로 벌어지게 되는 것이고, 피스톤(110)을 계속적으로 밀게 되면 실린더 내부에 충진되어 있는 약액을 환자에게 투여할 수 있게 되는 것이다.On the contrary, in the case of administering the medicine liquid contained in the syringe to the patient to push the piston 110 to generate a discharge force in the direction of the injection needle as shown in Fig. 4 or 8, the screen 12 is located in the discharge port (1b) Incision line (12a) of the) is to be opened in the direction of the needle, and if the piston 110 is continuously pushed to be able to administer the medicine liquid filled in the cylinder to the patient.

이때, 상기 흡입구(1a)가 일방향으로만 개방되어지는 원리는 테두리막(11)이 하측으로 경사지게 고정부재(2a)의 내벽에 밀착되어 있으므로 실린더측으로 흡입력이 발생할 경우에는 고정부재의 내벽과 떨어지면서 흡입구(1a)가 개방되어지지만 타측방향, 즉 주사바늘측으로 배출력이 발생될 경우에는 고정부재(2a)의 내벽에 걸려 더욱 긴밀히 밀착된 상태를 유지하도록 되는 것이고, 상기 배출구(1b)가 일방향으로만 개방되어지는 원리는 그 형태가 반원형으로 형성되어 있으므로 돌출된 방향으로만 절개선(12a)이 벌어짐이 가능토록 되면서 높은 압력에서 반대 방향 즉 실린더측으로는 벌어짐 되지 않게 되는 것이다.At this time, the suction port (1a) is open only in one direction is the rim membrane 11 is inclined downward so as to be in close contact with the inner wall of the fixing member (2a) when the suction force occurs in the cylinder side while falling off from the inner wall of the fixing member When the suction port 1a is opened but the discharge force is generated in the other direction, that is, the injection needle side, the suction port 1a is caught by the inner wall of the fixing member 2a to maintain a closer contact state, and the discharge port 1b is in one direction. The principle of opening only is that the shape is formed in a semi-circular shape so that the incision 12a can be opened only in the protruding direction and does not open in the opposite direction, that is, the cylinder side, at a high pressure.

즉, 피스톤의 전,후진 작동에 의하여 흡입시 또는 배출시에 발생하는 압력이 흡입구(1a)와 배출구(1b) 모두에 작용하게 되는데, 이때 흡입구(1a)와 배출구(1b)가 각각 다른 형태로 이루어짐에 따라 항력의 차이가 발생하게 되어 실린더의 내부방향으로 압력이 발생할 경우에는 흡입구(1a)의 테두리막(11)이 벌어지면서 흡입구가 개방됨과 동시에 배출구(1b)가 닫힌 상태를 유지하게 되는 것이고, 반대로 피스톤을 전방으로 밀어서 실린더(100)에서 주사바늘(2) 방향으로 압력이 발생할 경우에는 배출구(1b)의 가림막(12)에 형성된 절개선(12a)이 벌어지면서 배출구(1b)가 개방됨과 동시에 흡입구(1a)가 닫힌 상태를 유지하게 되는 것이다.That is, the pressure generated at the time of suction or discharge by the forward and backward operation of the piston acts on both the inlet port 1a and the outlet port 1b, in which the inlet port 1a and the outlet port 1b are respectively different. As a result of the difference in drag as the pressure is generated in the inner direction of the cylinder, the inlet 1a is opened and the outlet 1b is kept closed while the edge 11 of the inlet 1a is opened. On the contrary, when pressure is generated in the direction of the needle 2 from the cylinder 100 by pushing the piston forward, the inlet 1b is opened while the incision line 12a formed in the screen 12 of the outlet 1b opens. At the same time, the inlet 1a is to be kept closed.

이때, 유로를 형성하기 위하여 고정부재(2a)의 내벽에 형성된 기둥부(13)의 형태는 테두리막(11)의 상면으로부터 가림막(12)의 상단부 높이까지 형성하면 필터구조체(1)가 고정부재(2a)에 삽입된 상태에서 테두리막(11)이 역방향으로 개방되는 것을 더욱 방지하면서도 테두리막(11)의 외주면이 균일한 압력으로 고정부재(2a)의 내벽에 밀착되어져 안정적으로 개폐작동이 이루어질 수 있도록 되는 것이다.At this time, the pillar portion 13 formed on the inner wall of the fixing member 2a to form the flow path is formed from the upper surface of the rim 11 to the height of the upper end of the screen 12, the filter structure 1 is fixed member The outer peripheral surface of the rim film 11 is in close contact with the inner wall of the fixing member 2a at a uniform pressure while preventing the rim film 11 from being opened in the reverse direction in the inserted state (2a). It will be possible.

또한, 돌출되어진 기둥부(13)의 상단부가 가림막(12)의 상단부 높이까지 형성되므로 고정부재(2a)에 필터구조체(1)를 끼운 상태에서 가림막(12)이 직접 고정부재(2a)의 내벽에 맞닿지 않게 되어 가림막(12)의 개폐작동이 원활하게 이루어질 수 있게 되는 것이다.In addition, since the upper end of the protruding pillar 13 is formed up to the height of the upper end of the shielding membrane 12, the shielding membrane 12 directly contacts the inner wall of the fixing member 2a while the filter structure 1 is fitted to the fixing member 2a. It does not come into contact with the opening and closing operation of the screen 12 is to be made smoothly.

즉, 상기 기둥부(13)는 내경에 걸림턱(13a)이 형성되어 필터구조체(1)를 고정부재(2a)에 끼울 경우 필터구조체(1)의 상면 테두리가 걸림턱(13a)에 의하여 걸려 고정되어 긴밀히 고정될 수 있게 되는 것이고, 이때 기둥부(13)의 상측은 경사면(13b)을 형성함으로써 약액이 주사기 실린더(100)로 흡입될 경우 약액을 중앙부로 모아 약액유입이 용이하도록 유도토록 함이 바람직한 것이다.That is, the pillar portion 13 has a locking jaw (13a) is formed in the inner diameter when the filter structure 1 is fitted to the fixing member (2a) the upper edge of the filter structure 1 is caught by the locking jaw (13a) In this case, the upper side of the pillar portion 13 forms an inclined surface 13b so that when the chemical is sucked into the syringe cylinder 100, the chemical is collected in the center to facilitate the introduction of the chemical. This is desirable.

또한, 상기 기둥부(13)의 갯수는 본 발명에서와 같이 원형본체(10)의 외주면을 따라서 네 방향에 형성함이 바람직한 것이지만, 두 개 또는 그 이상의 복수의 형태로 제작할 수 있는 것이다.In addition, the number of the pillars 13 is preferably formed in four directions along the outer circumferential surface of the circular body 10 as in the present invention, but can be manufactured in two or more forms.

그리고 이러한 기둥부(13)는 필터구조체(1)와 일체로 성형하여 필터구조체(1)를 고정부재(2a)에 삽입하는 구조로 구현할 수도 있으나, 이 경우 필터구조체의 성형이 어렵기 때문에 도면에 도시된 바와 같이 고정부재(2a)의 내경에 기둥부(13)를 일체로 형성함으로써 필터구조체(1)와 고정부재(2a)를 결합함으로써 흡입구(1a)와 배출구(1b)가 형성되도록 함이 바람직한 것이다.The pillar portion 13 may be formed integrally with the filter structure 1 to insert the filter structure 1 into the fixing member 2a. However, in this case, since the molding of the filter structure is difficult, As shown in the figure, the inlet 1a and the outlet 1b are formed by combining the filter structure 1 and the fixing member 2a by integrally forming the pillar 13 at the inner diameter of the fixing member 2a. It is preferable.

한편, 상기 원형본체(10)에 내장되는 필터(20)는 도 1 내지 도 4에 도시된 바와 같이 원형 파이프형태로 이루어지는 원통형막(21)을 형성하면서 그 일단은 개방되고 타단은 차단막(22)으로 막힌 형태로 이루어지도록 하여 개방된 부분을 주사기 니들 측으로 위치하도록 원형본체(10)에 끼우면 막힌 부분이 필터의 후방, 즉 주사기 실린더측으로 위치되는 것이고, 이에 따라 주사기 실린더(100) 내부의 약액이 배출되어질 때 잔류하고 있는 이물질을 걸를 수 있도록 되는 것이다.Meanwhile, the filter 20 embedded in the circular body 10 forms a cylindrical membrane 21 having a circular pipe shape, as shown in FIGS. 1 to 4, one end of which is opened and the other end of the filter membrane 22. If the plug is inserted into the circular body 10 so that the opened part is positioned toward the syringe needle, the blocked part is positioned behind the filter, that is, toward the syringe cylinder. Thus, the chemical liquid in the syringe cylinder 100 is discharged. When it is done, it is possible to walk the remaining foreign matter.

이때, 상기 원통형막(21)은 그 길이를 길게 형성하여 후방으로 연장하면 필터(20)가 필터구조체(1)로부터 후방으로 돌출되게 끼움 결합됨으로써 약액이 직접 맞닿아 흡수되어지는 필터의 단면적을 늘려 약액의 배출시 필터구조체(1)에 가중되는 압력을 분산시키면서 피스톤의 가압이 더욱 용이하게 되는 것으로, 이러한 원통형막(21)의 길이는 주사기 실린더(100)의 전단부에 직접 맞닿지 않는 범위 내에서 연장할 수 있는 것이다.In this case, when the cylindrical membrane 21 is formed to have a long length and extends to the rear, the filter 20 is fitted to protrude rearward from the filter structure 1 to increase the cross-sectional area of the filter in which the chemical liquid is directly contacted and absorbed. Pressurization of the piston is more facilitated while dispersing the pressure added to the filter structure 1 when discharging the chemical liquid, such that the length of the cylindrical membrane 21 does not directly contact the front end of the syringe cylinder 100. It can be extended from.

또한, 상기 필터(20)는 도 5 내지 도 8에 도시된 바와 같이 원형 파이프형태로 이루어진 필터틀(23)의 내경에 걸름망(24)이 형성되는 구조를 갖도록 하면서 그 필터(20)를 원형본체(10)의 내측에 인서트 성형하여 제작할 수 있는 것으로, 이때 상기 필터틀(23)의 하단부는 원형본체(10)의 하단부보다 상대적으로 더욱 돌출되게 형성하면 필터틀(23)의 하단부가 주사기 실린더(100)의 전단부에 직접 맞닿게 되면서 실린더(100)의 전단부가 테두리막(11)에 직접 맞닿게 되는 것을 방지하여 테두리막(11)의 개폐작동이 원활하게 이루어질 수 있도록 되는 것이다.In addition, the filter 20 has a structure in which the strainer 24 is formed on the inner diameter of the filter frame 23 having a circular pipe shape as shown in FIGS. It can be manufactured by insert molding the inside of the (10), wherein the lower end of the filter frame 23 is formed to protrude relatively more than the lower end of the circular body 10, the lower end of the filter frame 23 is a syringe cylinder ( While directly contacting the front end of the 100 is to prevent the front end of the cylinder 100 is in direct contact with the rim 11 is to be able to smoothly open and close the rim 11.

이렇게 필터틀(23)이 주사기 실린더(100)의 전단부에 직접 맞닿게 되면 약액의 충진을 위한 흡입구(1a)가 차단되므로 필터틀(23)에는 부분적으로 절개부(23a)를 형성함으로써 약액이 충진되는 흡입경로를 확보할 수 있도록 하여야 하는 것이다. When the filter frame 23 is in direct contact with the front end of the syringe cylinder 100, the inlet port 1a for filling of the chemical solution is blocked, so that the chemical solution is partially formed in the filter frame 23 by forming an incision 23a. The suction path to be filled should be secured.

따라서 주사바늘의 교체없이 약액을 흡입한 주사바늘을 그대로 사용하는 경우에도 약액을 환자에게 주사할 때 흡입구(1a)의 외측에 이물질이 잔류하지 않으므로 약액과 함께 주사되는 것을 방지할 수 있고, 상기 실린더의 내부에서는 필터(20)에 의하여 약액에 함유된 이물질이 배출되지 못하고 실린더 내부에 잔류하게 되면서 역시 환자에게 주입되는 약액에 이물질이 섞여 배출되는 것을 방지하면서 순도가 높은 약액 만을 안전하게 투여할 수 있게 되는 것이다.Therefore, even when the needle that inhaled the chemical solution without changing the needle is used as it is, since foreign substances do not remain on the outside of the inlet 1a when injecting the chemical solution to the patient can be prevented from being injected with the chemical solution, the cylinder In the inside of the filter can be safely administered only a high-purity drug while preventing the foreign matter contained in the drug solution is not discharged to remain in the cylinder and also mixed with the drug solution injected into the patient while being discharged. will be.

1: 필터구조체
2: 주사바늘 2a: 고정부재
10: 원통형 몸체 11: 테두리막
12: 가림막 12a: 절개선
13: 기둥부 14: 이격공간
20: 필터1: filter structure
2: needle 2a: fixing member
10: cylindrical body 11: rim
12: mask 12a: incision
13: column 14: separation space
20: filter

Claims (5)

주사바늘(2)과 그 주사바늘(2)을 주사기 실린더(100)에 고정하기 위한 고정부재(2a)로 이루어지고 그 고정부재(2a)에는 필터가 내장되어 약액에 함유되어 있는 이물질을 걸러주도록 되는 필터 니들에 있어서,
상기 필터 니들은 주사바늘(2)이 형성되는 고정부재(2a)에 필터구조체(1)가 내장되고, 필터구조체(1)는 원형본체(10)로 이루어지면서 그 외측과 중앙부에 각각 흡입구(1a)와 배출구(1b)가 형성되어 흡입경로와 배출경로가 구분토록 되며, 각각의 흡입구(1a)와 배출구(1b)는 체크밸브 구조에 의하여 서로 다른 방향으로만 개방이 가능토록 되며, 상기 배출구(1b)측에는 필터구조체(1)에 필터(20)가 끼워져 약액의 배출시에는 이물질이 배출되지 않고 실린더 내부에 잔류토록 됨을 특징으로 하는 필터 니들.It consists of a fixing member (2a) for fixing the needle (2) and the needle (2) to the syringe cylinder 100, the filter is built in the fixing member (2a) to filter foreign matter contained in the chemical liquid In the filter needle is
The filter needle is built in the filter structure (1) in the fixing member (2a) in which the injection needle (2) is formed, the filter structure (1) consists of a circular body (10) while the suction port (1a) in the outer and central portions, respectively ) And an outlet 1b are formed to distinguish the suction path and the discharge path, and each of the inlet port 1a and the outlet port 1b can be opened only in different directions by the check valve structure. The filter needle, characterized in that the filter 20 is fitted to the filter structure (1) on the side 1b) so that when the chemical liquid is discharged, foreign substances are not discharged and remain inside the cylinder. 제 1항에 있어서, 상기 필터구조체(1)는 원형본체(10)의 중앙부에 반구형의 형태로 돌출되면서 그 중앙부에 절개선(12a)을 갖는 가림막(12)이 형성되고, 상기 고정부재(2a)의 내경에는 돌출되게 복수의 기둥부(13)가 형성되어 필터구조체(1)의 외경이 기둥부(13)와 밀착되게 끼워지며, 상기 기둥부(13)의 사이의 이격공간(14)을 통하여 흡입구(1a)가 형성되면서 이격공간(14)의 하단부에 밀착되도록 원형본체의 하단에 일방향으로 기울어진 형태로 테두리막(11)이 형성되어 테두리막(11)과 가림막(12)이 서로 반대 방향으로 개방되면서 체크밸브의 기능을 갖도록 됨을 특징으로 하는 필터 니들.The method of claim 1, wherein the filter structure (1) is projected in the hemispherical shape in the center of the circular body 10, the screening film 12 having an incision 12a in the center is formed, the fixing member (2a) A plurality of pillars 13 are formed to protrude in the inner diameter thereof, so that the outer diameter of the filter structure 1 is fitted in close contact with the pillars 13, and the space 14 between the pillars 13 is spaced apart from each other. As the inlet 1a is formed, the rim 11 is formed in an inclined direction in one direction at the bottom of the circular body so as to be in close contact with the lower end of the separation space 14 so that the rim 11 and the screen 12 are opposite to each other. Filter needle characterized in that it has a function of a check valve opening in the direction. 제 2항에 있어서, 상기 기둥부(13)는 내경에 걸림턱(13a)이 형성되어 필터구조체(1)의 상면이 걸림 고정토록 되고, 기둥부(13)의 상측은 경사면(13b)이 형성되어 약액의 유입이 용이하게 이루어짐을 특징으로 하는 필터 니들.According to claim 2, wherein the pillar portion 13 is formed with a locking jaw (13a) in the inner diameter so that the upper surface of the filter structure (1) is fixed so that the upper side of the pillar portion 13 is formed with an inclined surface (13b) Filter needle characterized in that the inflow of the chemical liquid is made easily. 제 1항에 있어서, 상기 필터(20)는 원통형막(21)의 일방향이 차단막(22)으로 막혀 형성되면서 원통형막(21)의 길이가 필터구조체(1)의 내입부보다 상대적으로 길게 형성되어 필터구조체(1)로부터 돌출되게 끼움 결합되어짐을 특징으로 하는 필터 니들.According to claim 1, wherein the filter 20 is formed in one direction of the cylindrical membrane 21 is blocked by the blocking film 22, the length of the cylindrical membrane 21 is formed relatively longer than the inner portion of the filter structure (1) Filter needle, characterized in that the fitting is protruding from the filter structure (1). 제 1항에 있어서, 상기 필터(20)는 원형 파이프형태로 이루어진 필터틀(23)의 내경에 걸름망(24)이 형성되고, 그 필터틀(23)이 주사기 실린더(100)의 전단부에 맞닿게 되면서 필터틀(23)에는 부분적으로 절개부(23a)가 형성되어 약액의 흡입경로를 확보할 수 있도록 됨을 특징으로 하는 필터 니들.According to claim 1, wherein the filter 20 is formed with a strainer 24 in the inner diameter of the filter frame 23 made of a circular pipe shape, the filter frame 23 is fitted to the front end of the syringe cylinder (100) The filter needle 23 is characterized in that the filter frame 23 is formed in the incision portion (23a) to partially secure the suction path of the chemical liquid.
KR1020110112458A 2011-04-08 2011-10-31 Filter needle KR101245378B1 (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
KR1020110112458A KR101245378B1 (en) 2011-10-31 2011-10-31 Filter needle
EP12767676.5A EP2695629B1 (en) 2011-04-08 2012-04-06 Filter needle
CN201610807283.XA CN106237444B (en) 2011-04-08 2012-04-06 Filter needle
US14/009,240 US9265883B2 (en) 2011-04-08 2012-04-06 Filter needle
CN201280017314.1A CN103492009B (en) 2011-04-08 2012-04-06 Filter needle
SG2013076062A SG194174A1 (en) 2011-04-08 2012-04-06 Filter needle
JP2014503605A JP5817050B2 (en) 2011-04-08 2012-04-06 Filter needle
CN201610807229.5A CN106362253B (en) 2011-04-08 2012-04-06 Filter needle
PCT/KR2012/002632 WO2012138177A2 (en) 2011-04-08 2012-04-06 Filter needle
US14/498,614 US9314570B2 (en) 2011-04-08 2014-09-26 Filter needle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110112458A KR101245378B1 (en) 2011-10-31 2011-10-31 Filter needle

Publications (1)

Publication Number Publication Date
KR101245378B1 true KR101245378B1 (en) 2013-03-25

Family

ID=48182217

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020110112458A KR101245378B1 (en) 2011-04-08 2011-10-31 Filter needle

Country Status (1)

Country Link
KR (1) KR101245378B1 (en)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101358936B1 (en) * 2013-07-23 2014-02-11 주식회사 아이엠티코리아 Connector type filter for a syringe, syringe with a filter and manufacturing method thereof
KR101466764B1 (en) * 2014-04-22 2014-11-28 백우인 Safety syringe with filter element
KR200475695Y1 (en) * 2013-11-01 2014-12-23 박효남 Stop Cock Type Multi-Way Connector Device For Intravenous Injection With Reduced Injection Resistance
WO2015163615A1 (en) * 2014-04-22 2015-10-29 백우인 Safety syringe including filter member
KR101572663B1 (en) * 2015-05-20 2015-11-27 (주)상아프론테크 Filter structure for syringe and syringe having the same
WO2016060467A3 (en) * 2014-10-14 2016-06-09 메디칸(주) Valve and method for coupling same
KR20160078299A (en) 2016-03-31 2016-07-04 최영철 Assembled filter for syringe, syringe and assembled ringer comprising thereof
KR20160109622A (en) * 2015-03-12 2016-09-21 주식회사 쟈마트메디칼 Filter means is a connector to be mounted on the syringe
KR101684487B1 (en) * 2016-01-07 2016-12-08 고종원 Disposable syringe having safety filter function
WO2017159923A1 (en) 2015-11-30 2017-09-21 최영철 Filter assembly for syringe, and syringe and ringer assembly comprising same
KR101817749B1 (en) 2017-07-17 2018-01-11 임성구 Filer of liquid medicinal for injector
KR101830639B1 (en) 2015-05-20 2018-02-21 (주)상아프론테크 Syringe
KR20180047297A (en) 2016-10-31 2018-05-10 최영철 Assembled filter for syringe, syringe and assembled ringer comprising thereof
KR20190013182A (en) 2017-07-31 2019-02-11 주식회사 메이플테크 Syringe equipped with debris filter
KR20190121092A (en) * 2018-04-17 2019-10-25 이진숙 Disposable safety sylinge having safety filter unit
KR102037703B1 (en) 2018-05-14 2019-10-29 주식회사 하나비전테크 An intravenous drip sap suspended particles vision inspection device and a method thereof
KR20190130523A (en) 2019-09-03 2019-11-22 주식회사 하나비전테크 An intravenous drip sap suspended particles vision inspection device and a method thereof
KR102059340B1 (en) * 2019-02-22 2019-12-26 주식회사 인성메디칼 Filter injector
EP3409310A4 (en) * 2016-01-27 2020-02-12 Ra, Yong-Kuk Syringe
KR20200106634A (en) * 2019-03-05 2020-09-15 (주) 씨엠씨 Mold for manufacturing filter assembly for syringe

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200357624Y1 (en) 2004-05-04 2004-07-30 김용범 Disposable injector
KR20050108169A (en) * 2004-05-11 2005-11-16 서유미 Filter structure and manufacturing method of once injector
KR100981586B1 (en) 2008-07-28 2010-09-10 강강구 Safety Filter Tip For A Syringe

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200357624Y1 (en) 2004-05-04 2004-07-30 김용범 Disposable injector
KR20050108169A (en) * 2004-05-11 2005-11-16 서유미 Filter structure and manufacturing method of once injector
KR100981586B1 (en) 2008-07-28 2010-09-10 강강구 Safety Filter Tip For A Syringe

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101358936B1 (en) * 2013-07-23 2014-02-11 주식회사 아이엠티코리아 Connector type filter for a syringe, syringe with a filter and manufacturing method thereof
WO2015012432A1 (en) * 2013-07-23 2015-01-29 주식회사 아이엠티코리아 Connector type filter device for syringe, syringe having same, and method for manufacturing connector type filter device
KR200475695Y1 (en) * 2013-11-01 2014-12-23 박효남 Stop Cock Type Multi-Way Connector Device For Intravenous Injection With Reduced Injection Resistance
WO2015064955A1 (en) * 2013-11-01 2015-05-07 박효남 Multiway connector device for stopcock-type intravenous injection having built-in filter reducing injection resistance
KR101466764B1 (en) * 2014-04-22 2014-11-28 백우인 Safety syringe with filter element
WO2015163615A1 (en) * 2014-04-22 2015-10-29 백우인 Safety syringe including filter member
WO2016060467A3 (en) * 2014-10-14 2016-06-09 메디칸(주) Valve and method for coupling same
KR102074515B1 (en) 2015-03-12 2020-02-10 주식회사 쟈마트메디칼 Filter means is a connector to be mounted on the syringe
KR20160109622A (en) * 2015-03-12 2016-09-21 주식회사 쟈마트메디칼 Filter means is a connector to be mounted on the syringe
KR101572663B1 (en) * 2015-05-20 2015-11-27 (주)상아프론테크 Filter structure for syringe and syringe having the same
WO2016186272A1 (en) * 2015-05-20 2016-11-24 (주)상아프론테크 Filter structure for syringe and syringe including same
KR101830639B1 (en) 2015-05-20 2018-02-21 (주)상아프론테크 Syringe
WO2017159923A1 (en) 2015-11-30 2017-09-21 최영철 Filter assembly for syringe, and syringe and ringer assembly comprising same
KR101684487B1 (en) * 2016-01-07 2016-12-08 고종원 Disposable syringe having safety filter function
EP3409310A4 (en) * 2016-01-27 2020-02-12 Ra, Yong-Kuk Syringe
KR20160078299A (en) 2016-03-31 2016-07-04 최영철 Assembled filter for syringe, syringe and assembled ringer comprising thereof
KR102053405B1 (en) 2016-10-31 2020-01-08 최영철 Assembled filter for syringe, syringe and assembled ringer comprising thereof
KR20180047297A (en) 2016-10-31 2018-05-10 최영철 Assembled filter for syringe, syringe and assembled ringer comprising thereof
KR101817749B1 (en) 2017-07-17 2018-01-11 임성구 Filer of liquid medicinal for injector
KR20190013182A (en) 2017-07-31 2019-02-11 주식회사 메이플테크 Syringe equipped with debris filter
KR20190121092A (en) * 2018-04-17 2019-10-25 이진숙 Disposable safety sylinge having safety filter unit
KR102136745B1 (en) 2018-04-17 2020-07-23 주식회사 밴드골드 Disposable safety sylinge having safety filter unit
KR102037703B1 (en) 2018-05-14 2019-10-29 주식회사 하나비전테크 An intravenous drip sap suspended particles vision inspection device and a method thereof
KR102059340B1 (en) * 2019-02-22 2019-12-26 주식회사 인성메디칼 Filter injector
KR20200106634A (en) * 2019-03-05 2020-09-15 (주) 씨엠씨 Mold for manufacturing filter assembly for syringe
KR102203624B1 (en) * 2019-03-05 2021-01-19 (주) 씨엠씨 Mold for manufacturing filter assembly for syringe
KR20190130523A (en) 2019-09-03 2019-11-22 주식회사 하나비전테크 An intravenous drip sap suspended particles vision inspection device and a method thereof

Similar Documents

Publication Publication Date Title
KR101245378B1 (en) Filter needle
KR101222881B1 (en) Filter needle
KR101713835B1 (en) filter needle
KR101354451B1 (en) A filter syringe
ES2656869T3 (en) System to provide IV administration equipment with closed ventilation for dangerous medication
CN106237444B (en) Filter needle
KR101335979B1 (en) Filter hub assembly for aspirating and injecting liquid medicine
KR101691218B1 (en) syringe
KR101513465B1 (en) Safety filter for syringe
KR20120114742A (en) A nidel with filter
KR101532413B1 (en) Disposable syringe having safety filter function
KR20140001800A (en) Filter assembly for syringe
KR101364496B1 (en) Filter assembly for syringe
KR101647738B1 (en) Filter module for syringe
KR101600562B1 (en) Antiparticle injector having stick injury preventing fuction
KR20130139807A (en) Filter assembly for syringe
CN105832547B (en) Bi-directional filtered dispensation injection needle
KR20160096405A (en) Filter tip for syringe to filter foreign substance in medical fluid
CN105853227B (en) Unidirectional filtering safe type dispensation injection needle
KR101504484B1 (en) Filter assembly for syringe
KR101301932B1 (en) A filter syringe with valve
KR20180056821A (en) Filter assembly for syringe
JP7389131B2 (en) Chemical mixing device, chemical mixing kit including the same, and method for manufacturing the same
CN105832546A (en) Safe dispensing injection needle with one-way filter function
CN105919805A (en) Dispensing injection needle with bi-directional filtration function

Legal Events

Date Code Title Description
A201 Request for examination
A302 Request for accelerated examination
E902 Notification of reason for refusal
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20160321

Year of fee payment: 4

FPAY Annual fee payment

Payment date: 20170406

Year of fee payment: 5

FPAY Annual fee payment

Payment date: 20180319

Year of fee payment: 6

FPAY Annual fee payment

Payment date: 20190319

Year of fee payment: 7