KR20120114742A - A nidel with filter - Google Patents

A nidel with filter Download PDF

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Publication number
KR20120114742A
KR20120114742A KR1020110032459A KR20110032459A KR20120114742A KR 20120114742 A KR20120114742 A KR 20120114742A KR 1020110032459 A KR1020110032459 A KR 1020110032459A KR 20110032459 A KR20110032459 A KR 20110032459A KR 20120114742 A KR20120114742 A KR 20120114742A
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KR
South Korea
Prior art keywords
filter
needle
filter structure
cylinder
disposable syringe
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KR1020110032459A
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Korean (ko)
Inventor
김근배
Original Assignee
주식회사 쟈마트
김근배
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Application filed by 주식회사 쟈마트, 김근배 filed Critical 주식회사 쟈마트
Priority to KR1020110032459A priority Critical patent/KR20120114742A/en
Priority to PCT/KR2012/002632 priority patent/WO2012138177A2/en
Priority to US14/009,240 priority patent/US9265883B2/en
Priority to JP2014503605A priority patent/JP5817050B2/en
Priority to CN201610807229.5A priority patent/CN106362253B/en
Priority to EP12767676.5A priority patent/EP2695629B1/en
Priority to CN201610807283.XA priority patent/CN106237444B/en
Priority to CN201280017314.1A priority patent/CN103492009B/en
Priority to SG2013076062A priority patent/SG194174A1/en
Publication of KR20120114742A publication Critical patent/KR20120114742A/en
Priority to US14/498,614 priority patent/US9314570B2/en

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    • 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
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/165—Filtering accessories, e.g. blood filters, filters for infusion liquids
    • 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
    • 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
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321—Means for protection against accidental injuries by used needles
    • A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston
    • 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
    • A61M2005/1652—Filter with duct, e.g. filtering element incorporated in a flow line, tube, duct
    • 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

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

Abstract

PURPOSE: A filter needle capable of preventing the injection of foreign substances from the needle when discharging a drug solution is provided to directly inject the drug solution to a patient after filling the needle with the drug solution. CONSTITUTION: A filter needle includes a filter structure(1) installed in a fixing member. The fixing member fixes an injection needle(200) to a syringe cylinder(100). The filter structure also includes an inlet(1a) and an outlet(1b) on both sides opened to the opposite directions only, using a respective check valve structure for separating a suction line and a discharge line of a drug solution. The inlet and the outlet include cylindrical pipe lines(10a, 10b) with filtering films(11a, 11b). A filter(13) is installed inside the pipe line inside the outlet.

Description

필터니들{A nidel with filter}Filter needle {A nidel with filter}

본 발명은 의료용의 주사기에 적용되는 것으로, 특히 혼합되어진 주사액을 환자에게 주사할 경우에 주사액의 혼합시 발생되는 이물질을 걸러내면서 주사가 용이토록 한 일회용 주사기에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention applies to medical syringes, and more particularly, to disposable syringes that facilitate injection while filtering out foreign substances generated when mixing the injection liquids when the mixed injection liquids are injected into a patient.

일반적으로 주사액은 감염환자에게 사용하게 되고, 이때 사용되는 주사과정에서 2차 감염이 발생된다라는 것이다.In general, the injection solution is used for infected patients, and the secondary infection occurs during the injection process.

또한 혼합된 주사액을 주사할 경우에 혼합시 발생되는 이물질의 혼합이 발생될 경우에 이러한 혼합액이 주사바늘을 통하여 그대로 인체에 주사가 이루어진다라는 것이다.In addition, when a mixed injection is injected, when a mixture of foreign substances generated during mixing occurs, the mixed solution is injected into the human body as it is through an injection needle.

즉 혼합되어지는 주사액은 액상과 분말을 혼합하거나 또는 액상만을 주입하게 되는데 이때 액상은 주로 유리나 플라스틱으로 제조된 앰플에 담겨져 있어 액상을 주사기로 빨아들이기 위하여는 앰플을 오픈할 경우에 유리가루나 플라스틱 가루등이 액상과 동시에 빨려지게 됨으로서 이러한 것을 걸러주는 기능이 없어 결국 인체에 주사할 경우에 동시에 주사되어 짐으로서 많은 부작용이 우려된다는 것이다.That is, the injection liquid to be mixed is mixed with the liquid and powder, or the liquid is injected only. In this case, the liquid is contained in an ampoule mainly made of glass or plastic, and the glass powder or plastic powder is opened when the ampoule is opened to suck the liquid into the syringe. As the back is sucked at the same time with the liquid, there is no function to filter this, and when injected into the human body is injected at the same time, many side effects are concerned.

따라서 최근에는 이러한 문제점을 해소하기 위하여 필터가 장착된 니들을 사용하여 혼합된 주사액을 빨아드릴 경우에 사용되는 것은 필터가 없는 것으로 빨아들인 후 인체에 주사할 경우에는 필터가 장착된 필터니들을 사용함으로서 주사시 인체에 이물질이 주사되는 것을 방지하고 있는 것이다.Therefore, recently, in order to solve this problem, the needle that is equipped with the filter is used to suck the mixed injection solution, and the filter is used when the human body is injected into the body after sucking the filter. When the injection is to prevent the foreign body is injected into the body.

그러나 이러한 주사방법은 2개의 1회용주사기를 사용함으로서 비 경제적이라는 것이고 이러한 과정에서 주사액의 산화에 의한 부작용은 물론 이러한 주사기를 소각할 경우에 발생되는 문제점이 야기된다라는 것이다.However, such an injection method is inexpensive by using two disposable syringes, and in this process, side effects due to oxidation of the injection solution are caused, as well as problems caused by incineration of such syringes.

따라서 본 발명은 주사기의 간단한 구조개선으로 주사기에 약액을 충진시킬 때 이물질이 유입되는 것을 필터를 통하여 완벽하게 걸러낼 수 있도록 하면서도 약액을 충진시킨 상태에서 주사바늘의 교체없이 그대로 환자에게 주사함에도 불구하고 걸러낸 이물질이 환자에게 재투여되는 것을 방지토록 한 것이다.Therefore, the present invention allows the patient to completely filter the inflow of foreign substances through the filter while filling the syringe with a simple structure improvement of the syringe, while injecting the patient without the replacement of the needle in the filled state with the medicine. This prevents the filtered foreign material from being re-administered to the patient.

이를 위하여 본 발명은 주사바늘과 일체로 형성되는 고정부재에 필터구조체를 내장하고, 상기 필터구조체는 양측으로 흡입구와 배출구를 형성하여 각각의 흡입구와 배출구가 체크밸브 구조로 일방향으로만 개방되어지도록 하여 흡입경로와 배출경로를 구분토록 하며, 상기 약액의 배출구에는 이물질의 배출방지를 위한 필터를 장착하여 필터에 의하여 걸러진 이물질이 주사기 내부에 잔류하면서 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 the filter structure forms inlets and outlets on both sides so that each inlet and outlet can be opened only in one direction with a check valve structure. The suction path and the discharge path are distinguished, and the discharge port of the chemical liquid is equipped with a filter for preventing the discharge of foreign substances to prevent foreign substances filtered by the filter from being administered to the patient while remaining inside the syringe.

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, 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, and thus it is convenient to inject the drug solution immediately after inhaling the drug solution without having to replace the needle. Rapid response to emergency patients is possible.

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 제 1 실시 예를 나타낸 사시도
도 1a는 도 1의 필터구조체가 조립된 상태의 부분확대 단면도
도 2는 본 발명의 제 1 실시 예의 약액 흡입구조를 나타낸 단면도
도 3은 본 발명의 제 1 실시 예의 약액 배출구조를 나타낸 단면도
도 4는 본 발명의 제 2 실시 예를 나타낸 사시도
도 4a는 도 4의 필터구조체가 조립된 상태의 부분확대 단면도
도 5는 본 발명의 제 2 실시 예의 약액 흡입구조를 나타낸 단면도
도 6은 본 발명의 제 2 실시 예의 약액 배출구조를 나타낸 단면도
도 7은 종래의 주사기의 필터구조를 나타낸 분해 사시도
도 7a은 종래의 주사기의 필터구조를 나타낸 장착 단면도1 is a perspective view showing a first embodiment of the present invention
FIG. 1A is a partially enlarged cross-sectional view of the filter structure of FIG. 1 assembled; FIG.
2 is a cross-sectional view showing a chemical liquid inhalation structure of a first embodiment of the present invention
Figure 3 is a cross-sectional view showing a chemical liquid discharge structure of the first embodiment of the present invention
4 is a perspective view showing a second embodiment of the present invention
4A is a partially enlarged cross-sectional view of the filter structure of FIG. 4 assembled;
5 is a cross-sectional view showing a chemical liquid inhalation structure of a second embodiment of the present invention
Figure 6 is a cross-sectional view showing a chemical liquid discharge structure of the second embodiment of the present invention
Figure 7 is an exploded perspective view showing the filter structure of a conventional syringe
Figure 7a 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 2에 도시된 바와 같이 실린더(100)와 피스톤(110)으로 이루어진 주사기 본체에 주사바늘(200)을 고정부재(210)를 이용하여 조립토록 하는 것으로, 상기 고정부재(210)에는 흡입구(1a)와 배출구(1b)가 형성된 필터구조체(1)를 내장하고, 각각의 흡입구(1a)와 배출구(1b)가 각각 체크밸브 구조에 의하여 서로 역방향으로만 개방이 가능토록 한 것이다.The present invention is to assemble the needle 200 to the syringe body consisting of the cylinder 100 and the piston 110 by using the fixing member 210, as shown in Figure 1 and 2, the fixing member ( 210 has a filter structure (1) formed with an inlet (1a) and an outlet (1b), each of the inlet (1a) and the outlet (1b) is to be opened only in the opposite direction to each other by the check valve structure respectively. will be.

즉, 주사기는 약물이 충진되도록 내공간을 갖는 실린더(100)에 피스톤(110)이 내장된 상태에서 피스톤(110)을 후방으로 당기면 실린더(100)가 진공상태가 되면서 흡입력을 발생시키고 이에 따라 흡입구(1a)를 개방하여 앰플에 담겨져 있는 약액을 흡입하여 실린더 내부로 빨아들이게 되는 것이고, 그 상태에서 앰플을 제거한 후 반대로 피스톤(110)을 밀어서 실린더(100) 내부에 압력을 발생시키면 충진되어 있는 약액을 배출구(1b)를 통하여 외부로 배출시켜 환자에게 주사가 가능토록 되는 것이다.That is, when the syringe pulls the piston 110 backward in the state in which the piston 110 is embedded in the cylinder 100 having the inner space to fill the drug, the cylinder 100 becomes a vacuum state and generates suction force, and accordingly Opening (1a) is to suck the chemical liquid contained in the ampoule and suck it into the cylinder.In that state, after removing the ampoule, push the piston 110 to generate pressure inside the cylinder 100. It is to be discharged to the outside through the outlet (1b) to be injected into the patient.

이를 위하여 상기 흡입구(1a)와 배출구(1b)를 형성함에 있어, 필터구조체(1)에 원통형의 관로(10a,10b)를 형성하고 각각의 관로(10a,10b)에는 타방향 단부에 가림막(11a,11b)을 형성하며, 그 가림막(11a,11b)은 반구형의 형태로 외측으로 돌출되게 형성하면서 중앙부에 절개선(12a,12b)을 형성하면 가림막(11a,11b)이 일방향으로만 개방되어지게 되는 것이다.To this end, in forming the inlet port 1a and the outlet port 1b, the cylindrical conduits 10a and 10b are formed in the filter structure 1, and each of the conduits 10a and 10b has a screen 11a at the other end. And 11b, and the shielding films 11a and 11b are formed to protrude outwards in a hemispherical shape, and when the incision lines 12a and 12b are formed in the center, the shielding films 11a and 11b are opened in only one direction. Will be.

즉, 도 2에 도시된 바와 같이 약액의 흡입시 피스톤(110)을 당겨서 주사기 실린더(100) 내측으로 흡입력이 발생하도록 하면 흡입구(1a)에 위치되는 가림막(11a)의 절개선(12a)이 실린더 내측방향으로 벌어지게 되는 것이고, 피스톤(110)을 계속적으로 잡아당기게 되면 앰플에 담겨져 있는 약액을 주사기 실린더(100)에 충진할 수 있게 되는 것이다.That is, as shown in FIG. 2, when suction of the chemical liquid is pulled to generate the suction force inside the syringe cylinder 100 by pulling the piston 110, the incision line 12a of the screening membrane 11a positioned at the suction port 1a is a cylinder. It is to be opened in the inward direction, and by continuously pulling the piston 110 will be able to fill the syringe cylinder 100 with the chemical liquid contained in the ampoule.

반대로, 환자에게 주사기에 담겨진 약액을 투여하고자 할 경우에는 피스톤(110)을 밀어서 도 3에 도시된 바와 같이 주사바늘 방향으로 배출력이 발생하도록 하면 배출구(1b)에 위치되는 가림막(11b)의 절개선(12b)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, when the patient wants to administer the medicine liquid contained in the syringe, the piston 110 is pushed to cause the ejection force to be generated in the direction of the injection needle as shown in FIG. 3. Improvement (12b) is to be opened in the direction of the needle, and if the piston 110 is pushed continuously to be able to administer the medicine liquid filled in the cylinder to the patient.

이때, 상기 흡입구(1a)와 배출구(1b)가 일방향으로만 개방되어지는 원리는 각각의 가림막(11a,11b)의 형태가 반원형의 역방향으로 가림막이 형성되어 있으므로 흡입시 또는 배출시 각각의 흡입구(1a)와 배출구(1b)에는 항력의 차이가 발생하게 되고, 이에 따라 피스톤을 당겨서 실런더의 내부방향으로 압력이 발생할 때에는 흡입구(1a)의 가림막(12a)에 형성된 절개선(12a)이 벌어지면서 흡입구(1a)가 개방됨과 동시에 배출구(1b)가 닫힌 상태를 유지하게 되는 것이고, 반대로 피스톤을 밀어서 실린더(100)에서 주사바늘(200) 방향으로 압력이 발생할 경우에는 배출구(1b)의 가림막(12b)에 형성된 절개선(12b)이 벌어지면서 배출구(1b)가 개방됨과 동시에 흡입구(1a)가 닫힌 상태를 유지하게 되는 것이다.At this time, the inlet (1a) and the discharge port (1b) is open only in one direction is the principle that each of the shielding film (11a, 11b) is formed in the reverse direction of the semi-circular shape so that each inlet ( A difference in drag occurs between 1a and the discharge port 1b. Accordingly, when pressure is generated in the inner direction of the cylinder by pulling the piston, an incision 12a formed in the screen 12a of the inlet 1a opens. The inlet 1a is opened and the outlet 1b is kept closed. On the contrary, when pressure is generated from the cylinder 100 to the needle 200 by pushing the piston, the screen 12b of the outlet 1b is closed. As the incision line 12b formed at) opens, the outlet 1b is opened and at the same time the inlet 1a is maintained closed.

또한, 상기 배출구(1b)의 관로(10b)상에는 필터(13)를 내장하여 약액이 배출될 경우 미세한 유리조각이나 고무조각과 같은 이물질이 통과되지 못하고 실린더 내부에 잔류토록 되는 것이고, 이에 따라 환자에게 투여되는 약액은 이물질이 함유되지 않은 상태로 안전하게 투여할 수 있게 되는 것이다.In addition, when the chemical liquid is discharged by embedding the filter 13 on the pipe line 10b of the discharge port 1b, foreign substances such as fine glass pieces or rubber pieces do not pass and remain inside the cylinder, and thus, to the patient. The drug solution to be administered can be safely administered in the absence of foreign substances.

한편, 상기 필터구조체(1)는 도 4 및 도 4a에 도시된 바와 같이 필터판(20)의 양면에 관통홀(21a)과 절개선(21b)이 형성된 실리콘 러버(21)를 부착하여 절개선(21b)이 필터(20)의 외측으로만 벌어짐되도록 함으로써 필터구조체(1)의 흡입구(1a)와 배출구(1b)가 체크밸브 구조를 갖도록 하고, 상기 실리콘 러버(21)는 양측이 서로 대칭되게 부착함으로써 절개선(21b)의 벌어짐에 의하여 양측이 서로 다른 역방향으로 개방되어 피스톤(110)을 당기거나 밀때 발생하는 흡입력과 배출력에 대응되게 흡입구(1a)와 배출구(1b)가 각각 개방되어지도록 할 수 있는 것이다.Meanwhile, as shown in FIGS. 4 and 4A, the filter structure 1 attaches the silicon rubber 21 having the through-hole 21a and the cut line 21b formed on both sides of the filter plate 20. The inlet port 1a and the outlet port 1b of the filter structure 1 have a check valve structure by allowing the 21b to open only to the outside of the filter 20, and the silicon rubber 21 is symmetrically on both sides. By attaching, the inlet 1a and the outlet 1b are opened to correspond to the suction force and the discharge force generated when the piston 110 is pulled or pushed on both sides by the opening of the incision line 21b. You can do it.

즉, 도 5에 도시된 바와 같이 약액의 흡입시 피스톤(110)을 당겨서 주사기 실린더(100) 내측으로 흡입력이 발생하도록 하면 두 개의 실리콘 러버(21) 중 흡입구(1a)에 절개선(21b)이 위치된 실리콘 러버(21)의 절개선(21b)이 실린더 내측방향으로 벌어지게 되는 것이고, 피스톤(110)을 계속적으로 잡아당기게 되면 앰플에 담겨져 있는 약액을 주사기 실린더(100)에 충진할 수 있게 되는 것이다.That is, as shown in FIG. 5, when the piston 110 pulls the piston 110 to generate suction force inside the syringe cylinder 100, the incision 21b is formed at the suction port 1a of the two silicon rubbers 21. The incision line 21b of the positioned silicon rubber 21 is opened in the cylinder direction, and when the piston 110 is pulled continuously, the chemical liquid contained in the ampoule can be filled in the syringe cylinder 100. will be.

반대로, 환자에게 주사기에 담겨진 약액을 투여하고자 할 경우에는 피스톤(110)을 밀어서 도 6에 도시된 바와 같이 주사바늘 방향으로 배출력이 발생하도록 하면 배출구(1b)에 위치되는 실리콘 러버(21)의 절개선(21b)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 where it is desired to administer the medicine liquid contained in the syringe, the piston 110 is pushed so that the ejection force is generated in the direction of the injection needle as shown in FIG. 6 of the silicone rubber 21 located at the outlet 1b. The incision 21b is to be opened in the direction of the needle, and if the piston 110 is pushed continuously, the medicine liquid filled in the cylinder can be administered to the patient.

이때, 상기 흡입구(1a)와 배출구(1b)가 일방향으로만 개방되어지는 원리는 각각의 각각의 절개선(21b)이 필터판(20)에 의하여 막혀져 일방향으로만 벌어짐되고, 이에 따라 피스톤을 당겨서 실런더의 내부방향으로 압력이 발생할 때에는 흡입구(1a)측의 절개선(21b)이 벌어지면서 흡입구(1a)가 개방됨과 동시에 배출구(1b)가 닫힌 상태를 유지하게 되는 것이고, 반대로 피스톤을 밀어서 실린더(100)에서 주사바늘(200) 방향으로 압력이 발생할 경우에는 배출구(1b)측의 절개선(21b)이 벌어지면서 배출구(1b)가 개방됨과 동시에 흡입구(1a)가 닫힌 상태를 유지하게 되는 것이다.At this time, the principle that the inlet port (1a) and the outlet port (1b) is opened in only one direction, each of the incision line (21b) is blocked by the filter plate 20 is opened in one direction only, thereby When the pressure is generated in the inner direction of the cylinder by pulling, the inlet line 21b on the inlet port 1a is opened and the inlet port 1a is opened and the outlet port 1b is kept closed. When pressure is generated in the direction of the injection needle 200 in the cylinder 100, the inlet line 21b on the outlet 1b side opens and the outlet 1b is opened and the inlet 1a is kept closed. will be.

또한, 상기 필터판(20)은 흡입구(1a)가 형성되는 위치에 슬롯홀(20a)을 형성하면 주사기의 실린더로 약액을 흡입할 경우 이물질이 필터에 걸림되지 않고 함께 유입되도록 하는 것으로, 약액을 흡입한 상태에서 필터판(20) 외측으로 이물질이 잔류하게 되는 것을 방지하고 전량 실린더 내부로 유입되도록 한 것이다.In addition, the filter plate 20 is to form a slot hole (20a) at the position where the suction port (1a) is formed so that when the inhalation of the chemical liquid into the cylinder of the syringe so that the foreign matter does not get caught in the filter together, It is to prevent foreign matter from remaining in the filter plate 20 in the inhaled state and to allow the entire amount to flow into the cylinder.

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 필터판(20)에 의하여 약액에 함유된 이물질이 배출되지 못하고 실린더 내부에 잔류하게 되면서 역시 환자에게 주입되는 약액에 이물질이 섞여 배출되는 것을 방지할 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 interior of the foreign matter contained in the chemical liquid by the filter plate 20 is not discharged to remain in the cylinder will be able to prevent the mixed with the foreign liquid in the chemical solution injected to the patient to be discharged.

이때, 상기 필터판(20)에 형성되는 슬롯홀(20a)의 형태는 절개선을 따라서 긴 형태로 형성함으로써 슬롯홀(20a)의 내주면이 절개선(21b)의 주변을 지지하여 약액의 배출시 흡입부(1a)에 위치한 절개선(21b)이 외측으로 벌어짐 되지 않고, 배출구(1b)측의 절개선(21b)만 개방되면서 약액이 배출되어지게 되는 것이다.At this time, the slot hole 20a formed in the filter plate 20 has a long shape along the cut line, so that the inner circumferential surface of the slot hole 20a supports the periphery of the cut line 21b to discharge the chemical liquid. The incision line 21b located at the suction part 1a is not opened to the outside, and only the incision line 21b on the outlet 1b side is opened so that the chemical liquid is discharged.

이때, 상기 실리콘 러버(21)의 외측으로는 커버판(22)을 더욱 부착함으로써 실리콘 러버(21)의 외주연 부분을 지지토록 하면서 절개선(21a,21b)이 형성된 부분이 용이하게 벌어짐 되도록 함이 바람직한 것으로, 상기 커버판(22)은 실리콘 러버(21)의 관통홀(21a)과 절개선(21b)의 대응되는 위치에 두 개의 관통홀(22a)이 형성하여야 하는 것이다.At this time, the cover plate 22 is further attached to the outside of the silicon rubber 21 so as to support the outer circumferential portion of the silicon rubber 21 to easily open portions formed with the cut lines 21a and 21b. Preferably, the cover plate 22 has two through holes 22a formed at corresponding positions of the through hole 21a and the cut line 21b of the silicon rubber 21.

그리고 상기 필터판(20)과 실리콘 러버(21)와 커버판(22)은 중앙에 축홀(20c,21c,22c)을 형성하여 리벳 고정토록 하여 한 몸체로 이루어지도록 함이 바람직하고, 상기 실리콘 러버(21)는 자체탄성력을 갖는 실리콘이나 고무 등으로 제작하면서 상기 커버판(22)은 플라스틱 사출물로 제작하여 필터구조체(1)가 임의로 변형되지 않고 외관형태를 유지할 수 있도록 함이 바람직한 것이다.The filter plate 20, the silicon rubber 21, and the cover plate 22 may be formed in one body by forming shaft holes 20c, 21c, and 22c at the center thereof to fix the rivets, and the silicon rubber 21 is made of silicon or rubber having a self-elasticity, the cover plate 22 is preferably made of a plastic injection molding so that the filter structure (1) can maintain the appearance without arbitrarily deformed.

이때, 상기 커버판(22)은 외주연에 돌출부(22b)를 형성하면 필터구조체(1)가 주사바늘의 고정부재에 삽입된 상태에서 임의로 빠짐 되는 것을 방지할 수 있게 되는 것이고, 이에 따라 주사기에 강력한 흡입력 또는 배출력이 발생할 경우에도 유동되지 않고 긴밀히 고정된 상태를 유지하면서 약액의 흡입 또는 배출이 이루어지도록 할 수 있는 것이다.At this time, the cover plate 22 is to form a protrusion (22b) on the outer circumference to prevent the filter structure (1) from being randomly pulled out in the state inserted into the fixing member of the needle, accordingly to the syringe Even when a strong suction force or discharge force occurs, it is possible to allow the inhalation or discharge of the chemical solution while maintaining a tightly fixed state without flowing.

1: 필터 구조체 1a: 흡입구
1b: 배출구
10a,10b: 관로 11a,11b: 가림막
12a,12b: 절개선 13: 필터
20: 필터판 20a: 슬롯홀
20c: 축홀
21: 실리콘 러버 21a: 관통홀
21b: 절개선 21c: 축홀
22: 커버판 22a: 관통홀
22b: 돌출부 22c: 축홀
100: 실린더 110: 피스톤
200: 주사바늘 210: 고정부재1: filter structure 1a: inlet port
1b: outlet
10a, 10b: pipeline 11a, 11b: screen
12a, 12b: incision 13: filter
20: filter plate 20a: slot hole
20c: shaft hole
21: silicone rubber 21a: through hole
21b: incision 21c: shaft hole
22: cover plate 22a: through hole
22b: projection 22c: shaft hole
100: cylinder 110: piston
200: needle 210: fixed member

Claims (7)

약물이 충진되도록 내공간을 갖는 실린더(100)에 피스톤(110)이 내장되고 피스톤(110)의 슬라이드 작동에 의하여 흡입력 또는 배출력을 발생시켜 주사바늘(200)을 통하여 약액을 흡입 또는 배출토록 되는 일회용 주사기에 있어서,
상기 주사바늘(200)을 주사기 실린더(100)에 고정하기 위한 고정부재에 필터구조체(1)가 내장되고, 상기 필터구조체(1)는 양측으로 흡입구(1a)와 배출구(1b)가 형성되며, 상기 필터구조체(1)의 흡입구(1a)와 배출구(1b)가 각각 체크밸브 구조에 의하여 서로 역방향으로만 개방이 가능토록 되어 약액의 흡입라인과 배출라인이 구분되어지도록 된 것을 특징으로 하는 일회용 주사기.The piston 110 is built in the cylinder 100 having an inner space to fill the drug, and generates suction or discharge force by the slide operation of the piston 110 to suck or discharge the chemical liquid through the needle 200. In a disposable syringe,
A filter structure 1 is embedded in a fixing member for fixing the needle 200 to the syringe cylinder 100, and the filter structure 1 is provided with an inlet 1a and an outlet 1b at both sides thereof. Disposable syringe, characterized in that the inlet port (1a) and the outlet port (1b) of the filter structure (1) can be opened only in the opposite direction to each other by the check valve structure so that the suction line and the discharge line of the chemical liquid is separated . 제 1항에 있어서, 상기 필터구조체(1)에 형성되는 흡입구(1a)와 배출구(1b)는 원통형의 관로(10a,10b)가 형성되어 각각의 관로(10a,10b)의 타방향 단부에는 가림막(11a,11b)이 형성되고, 상기 가림막(11a,11b)은 반구형의 형태로 외측으로 돌출되게 형성되면서 그 중앙부에 절개선(12a,12b)이 형성되어 가림막(11a,11b)이 일방향으로만 개방되며, 상기 배출구(1b)의 관로(10b)상에는 필터(13)가 내장되어 이물질이 주사바늘을 통하여 외부로 배출되지 않고 실린더 내부에 잔류토록 됨을 특징으로 하는 일회용 주사기.The inlet port 1a and the outlet port 1b formed in the filter structure 1 are formed with cylindrical conduits 10a and 10b, respectively, and the screening membrane is formed at the other end of each of the conduits 10a and 10b. (11a, 11b) is formed, and the shielding film (11a, 11b) is formed to protrude outward in a hemispherical shape, the incision line (12a, 12b) is formed in the center thereof, the shielding film (11a, 11b) in one direction only It is opened, disposable syringe, characterized in that the filter (13) is built on the conduit (10b) of the discharge port (1b) so that foreign matter remains in the cylinder without being discharged to the outside through the needle. 제 1항에 있어서, 상기 필터구조체(1)는 필터판(20)의 양면에 관통홀(21a)과 절개선(21b)이 형성된 실리콘 러버(21)가 부착되어 절개선(21b)이 필터(20)의 외측으로만 벌어짐토록 되고, 상기 실리콘 러버(21)는 양측이 서로 대칭되게 부착되어 절개선(21b)의 벌어짐에 의하여 양측이 서로 다른 역방향으로 개방되어짐을 특징으로 하는 일회용 주사기.The filter structure (1) according to claim 1, wherein the filter structure (1) is provided with a silicon rubber (21) having a through hole (21a) and an incision line (21b) formed on both surfaces of the filter plate (20). Disposable injecting only to the outside of the 20), the silicone rubber 21 is both sides are attached symmetrically to each other, both sides are opened in different directions by the opening of the incision (21b). 제 3항에 있어서, 상기 필터구조체(1)는 필터판(20)의 양면에 밀착되어진 실리콘 러버(21)의 외측으로 커버판(22)이 부착되고, 상기 커버판(22)은 실리콘 러버의 관통홀과 절개선의 대응되는 위치에 두 개의 관통홀(22a)이 형성된 것을 특징으로 하는 일회용 주사기.The filter plate (1) according to claim 3, wherein the filter structure (1) has a cover plate (22) attached to the outside of the silicon rubber (21) in close contact with both surfaces of the filter plate (20), and the cover plate (22) is made of a silicone rubber. Disposable syringe, characterized in that the two through-hole (22a) is formed in the corresponding position of the through-hole and the incision line. 제 3항에 있어서, 상기 필터판(20)은 흡입구(1a)가 형성되는 위치에 슬롯홀(20a)이 형성된 것을 특징으로 하는 일회용 주사기.4. The disposable syringe according to claim 3, wherein the filter plate (20) is formed with a slot hole (20a) at a position at which the suction port (1a) is formed. 제 4항에 있어서, 상기 커버판(22)은 외주연에 돌출부(22b)가 형성되어 필터구조체(1)가 주사바늘의 고정부재에 삽입된 상태에서 빠짐이 방지토록 됨을 특징으로 하는 일회용 주사기.The disposable syringe according to claim 4, wherein the cover plate (22) has a protrusion (22b) formed on an outer circumference thereof to prevent the filter structure (1) from being pulled out while being inserted into the fixing member of the needle. 제 4항에 있어서, 상기 필터 구조체(1)는 필터판(20)과 실리콘 러버(21)와 커버판(22)의 중앙에 축홀(20c,21c,22c)가 형성되어 리벳고정토록 됨을 특징으로 하는 일회용 주사기.5. The filter structure (1) is characterized in that shaft holes (20c, 21c, 22c) are formed in the center of the filter plate (20), the silicon rubber (21), and the cover plate (22) to fix the rivets. Disposable syringe.
KR1020110032459A 2011-04-08 2011-04-08 A nidel with filter KR20120114742A (en)

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KR1020110032459A KR20120114742A (en) 2011-04-08 2011-04-08 A nidel with filter
PCT/KR2012/002632 WO2012138177A2 (en) 2011-04-08 2012-04-06 Filter needle
US14/009,240 US9265883B2 (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
EP12767676.5A EP2695629B1 (en) 2011-04-08 2012-04-06 Filter needle
CN201610807283.XA CN106237444B (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
US14/498,614 US9314570B2 (en) 2011-04-08 2014-09-26 Filter needle

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101324555B1 (en) * 2013-03-20 2013-11-11 주식회사 티에이치엠코리아 Hub with safety filter for syringe
KR101335979B1 (en) * 2013-04-08 2013-12-03 천진호 Filter hub assembly for aspirating and injecting liquid medicine
KR101448856B1 (en) * 2014-05-15 2014-10-13 송태섭 Filter assembly for syringe
KR200476102Y1 (en) * 2013-11-13 2015-01-29 박효남 Filter needle for syringe having filter whose surface area increased
KR101531217B1 (en) * 2014-11-21 2015-06-25 유영선 A syringe with a filter
WO2015102218A1 (en) * 2014-01-03 2015-07-09 동국대학교 산학협력단 Filter needle
WO2016111400A1 (en) * 2015-01-09 2016-07-14 (주)엠에스디바이스 Syringe having filter
CN106110444A (en) * 2016-09-22 2016-11-16 吉林大学 A kind of multifunctional injector
WO2016195259A1 (en) * 2015-05-29 2016-12-08 육영수 Filtering needle provided with rotationally cuttable and removable intake tube, and filtering syringe
WO2016195277A1 (en) * 2015-05-29 2016-12-08 육영수 Filtering needle provided with slidingly detachable intake tube, and filtering syringe
WO2016208923A1 (en) * 2015-06-23 2016-12-29 주식회사 아모라이프사이언스 Safety filter and syringe having same
US9795746B2 (en) 2014-01-03 2017-10-24 Dongguk University Industry—Academic Cooperation Foundation Filter needle

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101324555B1 (en) * 2013-03-20 2013-11-11 주식회사 티에이치엠코리아 Hub with safety filter for syringe
KR101335979B1 (en) * 2013-04-08 2013-12-03 천진호 Filter hub assembly for aspirating and injecting liquid medicine
KR200476102Y1 (en) * 2013-11-13 2015-01-29 박효남 Filter needle for syringe having filter whose surface area increased
US9795746B2 (en) 2014-01-03 2017-10-24 Dongguk University Industry—Academic Cooperation Foundation Filter needle
WO2015102218A1 (en) * 2014-01-03 2015-07-09 동국대학교 산학협력단 Filter needle
KR101448856B1 (en) * 2014-05-15 2014-10-13 송태섭 Filter assembly for syringe
WO2016080748A1 (en) * 2014-11-21 2016-05-26 유영선 Syringe having filter
KR101531217B1 (en) * 2014-11-21 2015-06-25 유영선 A syringe with a filter
WO2016111400A1 (en) * 2015-01-09 2016-07-14 (주)엠에스디바이스 Syringe having filter
WO2016195259A1 (en) * 2015-05-29 2016-12-08 육영수 Filtering needle provided with rotationally cuttable and removable intake tube, and filtering syringe
WO2016195277A1 (en) * 2015-05-29 2016-12-08 육영수 Filtering needle provided with slidingly detachable intake tube, and filtering syringe
EP3305351A4 (en) * 2015-05-29 2019-03-20 Young Su Yuk Filtering needle provided with rotationally cuttable and removable intake tube, and filtering syringe
WO2016208923A1 (en) * 2015-06-23 2016-12-29 주식회사 아모라이프사이언스 Safety filter and syringe having same
CN106110444A (en) * 2016-09-22 2016-11-16 吉林大学 A kind of multifunctional injector

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