KR100365163B1 - An automatic pouring apparatus of an injection - Google Patents

An automatic pouring apparatus of an injection Download PDF

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Publication number
KR100365163B1
KR100365163B1 KR1020000042128A KR20000042128A KR100365163B1 KR 100365163 B1 KR100365163 B1 KR 100365163B1 KR 1020000042128 A KR1020000042128 A KR 1020000042128A KR 20000042128 A KR20000042128 A KR 20000042128A KR 100365163 B1 KR100365163 B1 KR 100365163B1
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South Korea
Prior art keywords
injection
gas
chamber
liquid
syringe body
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KR1020000042128A
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Korean (ko)
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KR20010039742A (en
Inventor
김용년
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김용년
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Priority to KR1020000042128A priority Critical patent/KR100365163B1/en
Application filed by 김용년 filed Critical 김용년
Priority to KR2020000020932U priority patent/KR200205619Y1/en
Priority to PCT/KR2000/001530 priority patent/WO2002011791A1/en
Priority to AU2001222342A priority patent/AU2001222342A1/en
Priority to CNA2005100699623A priority patent/CN1676171A/en
Priority to EP10184270A priority patent/EP2308549A1/en
Priority to CNB008197652A priority patent/CN1227042C/en
Priority to CN2005100699604A priority patent/CN1676169B/en
Priority to EP00986039.6A priority patent/EP1305066B1/en
Priority to JP2002517123A priority patent/JP4689142B2/en
Priority to CN2005100699619A priority patent/CN1676170B/en
Priority to KR2020010001709U priority patent/KR200226977Y1/en
Publication of KR20010039742A publication Critical patent/KR20010039742A/en
Application granted granted Critical
Publication of KR100365163B1 publication Critical patent/KR100365163B1/en
Priority to US10/350,165 priority patent/US6786365B2/en
Priority to US10/933,337 priority patent/US6964356B2/en
Priority to JP2010256248A priority patent/JP5348700B2/en
Priority to JP2012210528A priority patent/JP2012250088A/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
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142—Pressure infusion, e.g. using pumps
    • A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
    • A61M5/155—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by gas introduced into the reservoir
    • 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
    • A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
    • A61M5/16877—Adjusting flow; Devices for setting a flow rate
    • A61M5/16881—Regulating 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
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
    • A61M5/16804—Flow controllers
    • 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
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3331—Pressure; Flow
    • 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
    • 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
    • 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

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

Abstract

본 발명은 주사액 자동주입기에 관한 것으로서, 주사액이 저장되는 주사기 몸체의 상부에 격벽에 의하여 상부실과 하부실로 나누어진 형태의 하우징을 일체로 형성하고, 서로간에 화학적 반응을 일으키는 고체물질과 액체물질을 상기 상부실과 하부실에 각각 내재시킨 후, 사용시 고체물질이 격벽을 뚫고 액체물질에 담겨지게 하는 동시에 화학적 반응을 일으키도록 함으로써, 이때 화학적 반응으로 발생되는 가스의 압에 의하여 주사기몸체의 피스톤이 일정한 속도로 전진되어, 주사기몸체내의 주사액이 일정시간내에 정속/정량으로 환자에게 배출 공급되도록 한 주사액 자동주입기를 제공하는데 그 목적이 있다.The present invention relates to an injection liquid autoinjector, which integrally forms a housing having a shape divided into an upper chamber and a lower chamber by a partition wall on an upper portion of a syringe body in which the injection liquid is stored, and solid and liquid substances which cause chemical reactions to each other. After being embedded in the upper chamber and the lower chamber, the solid material penetrates the bulkhead and is contained in the liquid material and causes a chemical reaction at the same time.In this case, the piston of the syringe body is driven at a constant speed by the pressure of the gas generated by the chemical reaction. An object of the present invention is to provide an injection injector which has been advanced so that the injection in the syringe body is discharged and supplied to the patient at a constant speed / quantity within a predetermined time.

Description

주사액 자동 주입기{An automatic pouring apparatus of an injection}An automatic pouring apparatus of an injection

본 발명은 주사액 자동 주입기에 관한 것으로서, 고체와 액체물질을 격막으로 분리시켜 놓고, 사용시 격막을 터트림에 따라 상기 고체와 액체물질이 혼합되어 일어나는 화학반응에 의하여 탄산가스가 발생하는 바, 이 가스의 압력으로 주사액이 자동으로 정속/정량 배출되도록 한 주사액 자동 주입기에 관한 것이다.The present invention relates to an automatic injection liquid injector, wherein the carbon dioxide is generated by a chemical reaction caused by mixing the solid and the liquid material as the solid and liquid material are separated into the diaphragm and the diaphragm breaks during use. The present invention relates to an automatic injection liquid injector which allows the injection liquid to be discharged at a constant speed / quantity automatically at a pressure of.

통상적으로 환자들에게 일정량의 주사약액을 특정시간내에 주입시키고자 할때에 번거로움을 덜어주기 위하여 자동주입기를 사용한다.Typically, autoinjectors are used to reduce the hassle of injecting patients with a certain amount of injection within a certain time.

종래의 주사액 자동 주입기는 원형의 챔버(Chamber)내에 고무재의 탄력주머니가 부착된 구조로서, 탄력주머니에는 주사액을 주입하여 부풀어 오르게 하는 주입구와 배출구가 형성되어 있다.The conventional injection liquid autoinjector is a structure in which a resilient pouch of rubber material is attached to a circular chamber, and the resilient pouch is formed with an inlet and an outlet for injecting and injecting the injection liquid.

다음으로, 물고무 풍선처럼 부풀어 오른 탄력주머니내의 주사액은 대기압에 의해 일시에 빠져나가지 못하도록 상기 배출구에 부착된 가느다란 튜브를 통하여 소량씩 배출되어 환자에게 공급되어진다.Next, the injection liquid in the inflated resilient pouch like a water rubber balloon is discharged in small amounts through a thin tube attached to the outlet so as not to escape temporarily by atmospheric pressure and supplied to the patient.

그러나, 상기와 같은 종래의 주사액 주입기는 탄력주머니의 두께와 밀도에 따라 탄성력이 일정치 못하고, 또한 탄력주머니의 주사액 최초 배출압력과 말기의 압력간의 편차가 커서 그 배출압력이 일정하지 않는 바, 주입되는 주사액의 유량 변동이 심한 단점이 있다.However, the conventional injection liquid injector as described above, the elastic force is not constant according to the thickness and density of the elastic bag, and also the discharge pressure is not constant because the deviation between the initial discharge pressure and the terminal pressure of the injection liquid of the elastic bag is large, injection The flow rate fluctuation of the injection solution is severe disadvantage.

또한, 탄력주머니의 제조시 균일하지 못한 두께로 탄성변동 및 미세한 구멍이 뚫린 불량품이 발생되는데, 이러한 불량품은 실제 사용시에 발견되어 정확한 량의 주사액을 주사하지 못하는 페단이 있었다.In addition, in the manufacture of the elastic bag, a defective product with elastic fluctuations and minute holes are generated with a non-uniform thickness, such defective products were found in actual use, and there was a pedan that was unable to inject the correct amount of the injection solution.

이에, 본원 출원인은 상기와 같은 단점들을 해소하고자 환자에게 일정시간내에 정량의 주사액을 정확히 공급할 수 있도록 한 주사액 자동주입기(출원일:1999년 8월 31일, 특허출원번호: 제99-8037호)를 이미 출원한 바 있다.Accordingly, the applicant of the present application is to provide an injection injection automatic injection machine (Application Date: August 31, 1999, Patent Application No .: 99-8037) that can accurately supply the quantitative injection solution to the patient in a certain time to solve the above disadvantages It has already applied.

따라서, 본 발명은 기출원된 상기 주사액 자동주입기를 개선하여, 소정의 하우징내에 화학적 반응을 일으키는 고체물질과 액체물질을 격벽을 사이에 두고 내재시킨 후, 사용시 고체물질이 격벽을 뚫고 액체물질에 담겨지게 하는 동시에 화학적 반응을 일으키도록 함에 따라, 이때 발생되는 가스의 압에 의하여 주사기몸체의 피스톤이 일정하게 전진되는 동시에 주사기 몸체내의 주사액이 일정시간내에 정속/정량으로 배출되도록 한 주사액 자동주입기를 제공하는데 그 목적이 있다.Accordingly, the present invention improves the previously-injected injection liquid injector, and the solid material and the liquid material causing a chemical reaction in the predetermined housing is interposed between the partition wall, and in use, the solid material penetrates the partition wall and is contained in the liquid material. As a result, the pressure of the gas generated at this time causes the piston of the syringe body to be constantly advanced and the injection liquid in the syringe body is discharged at a constant speed / quantity within a certain time. The purpose is.

이에, 일정시간내에 정량의 주사액을 환자에게 정확하게 공급할 수 있어 주사액 자동주입기의 신뢰성을 최대화시킬 수 있는 효과를 얻을 수 있다.Thus, it is possible to accurately supply the quantitative injection solution to the patient within a certain time, thereby obtaining the effect of maximizing the reliability of the injection autoinjector.

도 1은 본 발명에 따른 주사액 자동 주입기를 나타내는 전체 사시도,1 is an overall perspective view showing an automatic injection liquid injector according to the present invention,

도 2는 본 발명에 따른 주사액 자동 주입기를 나타내는 요부 단면도,2 is a sectional view showing the main parts of an automatic injection liquid injector according to the present invention;

도 3은 본 발명에 따른 주사액 자동 주입기의 사용상태를 나타내는 단면도.3 is a cross-sectional view showing a state of use of the automatic injection liquid injector according to the present invention.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

10 : 하우징 12 : 가압판10 housing 12 pressure plate

14 : 상부실 16 : 제1가스배출구14: upper chamber 16: the first gas outlet

18 : 하부실 20 : 격벽18: lower chamber 20: partition wall

22 : 제2가스배출구 24 : 압력조절밸브22: second gas outlet 24: pressure control valve

26 : 가스경유실 28 : 기체 통과성 박막26 gas passage chamber 28 gas-permeable thin film

30 : 고체물질 32 : 액체물질30: solid material 32: liquid material

34 : 눈금 36 : 피스톤34: graduation 36: piston

38 : 주사기 몸체 40 : 주사기 배출구38: syringe body 40: syringe outlet

42 : 튜브관 44 : 주사액 공급밸브42: tube tube 44: injection liquid supply valve

46 : 클램프 48 : 필터46: clamp 48: filter

50 : 주사바늘뭉치50: needle bunch

이하, 본 발명을 첨부도면을 참조로 상세하게 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

상기한 목적을 달성하기 위한 본 발명에 따른 주사액 자동주입기는:Injection liquid autoinjector according to the present invention for achieving the above object:

상면에 가압판(12)이 누름 가능하게 일체로 형성된 상부실(14)과, 바닥면에제1가스배출구(16)가 형성된 하부실(18)과, 상기 상부실(14)과 하부실(18)을 나누어주는 격벽(20)과, 일측에는 상기 제1가스배출구와 연통되는 압력조절밸브(24)가 부착되고 바닥면에는 상기 압력조절밸브(24)와 연통되는 제2가스배출구(22)가 형성된 가스경유실(26)로 이루어진 하우징(10)과; 상기 하부실(18)의 바닥면과 둘레면을 감싸며 부착된 기체통과성 박막(28)과; 상기 상부실(14)에 내재되는 고체물질(30)과; 상기 기체통과성 박막(28)에 의하여 밑으로 통과되지 않고 하부실(18)내에 채워지는 액체물질(32)과; 상기 가스경유실(26)의 제2가스배출구와 연통되며 일체로 형성되고, 피스톤(36)이 내설되어 있으며, 표면에는 주사액의 주입 및 배출량을 알려주도록 눈금(34)이 표시된 주사기몸체(38)로 구성된 것을 특징으로 한다.The upper chamber 14 integrally formed on the upper surface so that the pressure plate 12 can be pressed, the lower chamber 18 having the first gas outlet 16 formed on the bottom surface, and the upper chamber 14 and the lower chamber 18. The partition wall 20 for dividing a) and a pressure control valve 24 communicating with the first gas outlet are attached to one side thereof, and a second gas outlet 22 communicating with the pressure control valve 24 is attached to the bottom surface thereof. A housing 10 formed of the gas gas passage chamber 26 formed therein; A gas-permeable thin film 28 wrapped around the bottom surface and the circumferential surface of the lower chamber 18; A solid material 30 embedded in the upper chamber 14; A liquid substance 32 filled in the lower chamber 18 without passing downward by the gas-permeable thin film 28; The syringe body 38 in communication with the second gas outlet of the gas gas passage 26 and integrally formed, integrally formed with a piston 36, and having a scale 34 marked on the surface thereof to inform the injection and discharge of the injection liquid. Characterized in that consisting of.

바람직한 구현예로서, 상기 고체물질(30)은 탄산수소나트륨(NaHCO3) 20 ~ 60 중량%, KBr 20 ~ 40 중량% 및 알루미나 20 ~ 40 중량%로 이루어진 고체 혼합물인 것을 특징으로 한다.In a preferred embodiment, the solid material 30 is characterized in that the solid mixture consisting of 20 to 60% by weight sodium bicarbonate (NaHCO 3), 20 to 40% by weight KBr and 20 to 40% by weight of alumina.

또한, 상기 액체물질(32)은 L-타르타르산(C4H6O6) 용액인 것을 특징으로 한다.In addition, the liquid material 32 is characterized in that the L- tartaric acid (C4H6O6) solution.

특히, 상기 피스톤(36)의 하부 형상은 상기 주사기몸체(38)의 하부 배출구쪽 형상과 동일하게 형성된 것을 특징으로 한다.In particular, the lower shape of the piston 36 is characterized in that it is formed in the same shape as the lower outlet side of the syringe body 38.

여기서 본 발명을 실시예로서, 첨부한 도면을 참조로 더욱 상세하게 설명하면 다음과 같다.Herein, the present invention will be described in more detail with reference to the accompanying drawings.

첨부한 도 1은 본 발명에 따른 주사액 자동주입기를 나타내는 사시도로서,도면부호 10은 주사기몸체(38)와 일체로 성형된 원통형의 하우징을 나타낸다.1 is a perspective view illustrating an injection liquid autoinjector according to the present invention, wherein reference numeral 10 denotes a cylindrical housing integrally formed with the syringe body 38.

상기 하우징(10)은 크게 상부실(14)과 하부실(18), 그리고 상부실(14)과 하부실(18)을 나누어주며 일정한 압력에 의하여 찢어지는 격벽(20), 상기 하부실(18) 밑으로 형성된 일정공간의 가스경유실(26)로 구성되는 바, 각 구성부위를 상세하게 설명하면 다음과 같다.The housing 10 divides the upper chamber 14 and the lower chamber 18, and the partition 20 and the lower chamber 18 which are torn by a constant pressure and divide the upper chamber 14 and the lower chamber 18. The bar is composed of a gas passage chamber 26 in a predetermined space formed below, and each component will be described in detail as follows.

상기 상부실(14)의 상면 중앙부에는 원판형의 가압판(12)이 누름 가능하게 일체로 형성되어 있고, 그 내부에는 탄산수소나트륨(NaHCO3) 20 ~ 60 중량%, KBr 20 ~ 40 중량% 및 알루미나 20 ~ 40 중량%로 이루어진 원판형의 고체물질(30)이 격벽(20)상에 놓여져 있다.A disk-shaped pressure plate 12 is integrally formed in the center of the upper surface of the upper chamber 14 so as to be pressed, and therein, 20 to 60 wt% of sodium hydrogen carbonate (NaHCO3), 20 to 40 wt% of KBr, and alumina A disk-like solid material 30 composed of 20 to 40% by weight is placed on the partition wall 20.

또한, 상기 격벽(20) 밑의 하부실(18)에는 그 둘레면과 바닥면에 걸쳐 기체통과성 박막(28)이 둘러싸여 있고, 기체통과성 박막(28) 밑의 바닥면 일정부위에는 제1가스배출구(16)가 형성되어 있다.In addition, the lower chamber 18 under the partition wall 20 is surrounded by the gas-permeable thin film 28 over its circumferential surface and the bottom surface, and a first portion of the bottom surface under the gas-permeable thin film 28 is formed on the first chamber. The gas discharge port 16 is formed.

이때, 상기 기체통과성 박막(28)으로 둘려싸여 있는 상기 하부실(18)에는 액체물질(32) 즉, L-타르타르산(C4H6O6) 용액이 채워지게 되는데, 액체상태의 L-타르타르산(C4H6O6) 용액은 상기 기체통과성 박막(28)의 수밀작용으로 밑으로 빠져나가지 못하게 된다.At this time, the lower chamber 18 surrounded by the gas-permeable thin film 28 is filled with a liquid material 32, that is, a solution of L-tartaric acid (C4H6O6), the liquid L- tartaric acid (C4H6O6) solution Is prevented from escaping downward due to the watertight action of the gas-permeable thin film 28.

또한, 상기 하부실(18)의 밑으로는 소정 공간의 가스경유실(26)이 형성되어 있는데, 이 가스경유실(26)의 일측면에는 예를들어, 기준치를 초과하는 가스압을 배출시키는 압력조절밸브(24)가 상기 제1가스배출구와 연통되게 부착되어 있고, 그 바닥면에는 역시 압력조절밸브(24)와 연통되는 제2가스배출구(22)가 형성되어 있다.In addition, a gas passage chamber 26 in a predetermined space is formed under the lower chamber 18. On one side surface of the gas passage chamber 26, for example, a pressure for discharging a gas pressure exceeding a reference value A control valve 24 is attached in communication with the first gas outlet, and a second gas outlet 22 is also formed in the bottom surface thereof in communication with the pressure control valve 24.

또한, 상기 가스경유실(26)의 제2가스배출구(22) 밑으로는 상기 하우징(10)의 직경과 동일한 직경인 주사기 몸체(38)가 일체로 형성되는데, 이 주사기 몸체(38)의 내부에는 상하로 이동 가능한 피스톤(36)이 내재되어 있고, 물론 하단끝에는 주사액 배출구(40)가 형성되어 있다.In addition, a syringe body 38 having the same diameter as the diameter of the housing 10 is integrally formed under the second gas outlet 22 of the gas passage chamber 26. The piston 36 which is movable up and down is inherent, and, of course, the injection liquid discharge port 40 is formed at the lower end.

특히, 상기 주사기 몸체(38)의 표면에는 내부의 주사액의 잔량과 배출되는 량을 식별 가능하도록 ml단위의 눈금(34)이 새겨져 있다.In particular, the scale 34 in ml unit is engraved on the surface of the syringe body 38 so as to distinguish the remaining amount and the discharge amount of the injection liquid therein.

또한, 상기 피스톤(36)의 하부 형상과 주사기 몸체(38)의 배출구쪽 하부 형상은 동일한 형상으로 형성하여, 피스톤(36)이 하강하여 주사기몸체(38)의 배출구쪽에 꼭 맞도록 함으로써, 데드 체적(Dead volume)을 없애는 동시에 주사액이 남김없이 배출됨을 보조하게 된다.In addition, the lower shape of the lower portion of the piston 36 and the lower shape of the outlet side of the syringe body 38 is formed in the same shape, so that the piston 36 is lowered to fit snugly to the outlet side of the syringe body 38, the dead volume The dead volume is eliminated and the injection fluid is completely discharged.

한편, 상기 주사기 몸체(38)의 배출구(40)에는 통상적으로 일정길이의 튜브관(42)이 삽입 고정되는 바, 이 튜브관(42)의 일정부위에는 주사액을 상기 주사기 몸체(38)내로 공급하여주는 공급밸브(44)와, 튜브관(42)을 따라 흐르는 주사액의 흐름을 차단하여주는 클램프(46)와, 주사액내의 이물질을 걸러주는 필터(48)가 부착되고, 튜브관(42)의 끝단에는 환자의 피부에 꼿을 수 있는 주사바늘뭉치(50)가 부착되어진다.Meanwhile, a tube tube 42 having a predetermined length is inserted into and fixed to the outlet 40 of the syringe body 38, and an injection liquid is supplied into the syringe body 38 at a predetermined portion of the tube tube 42. The supply valve 44, the clamp 46 for blocking the flow of the injection liquid flowing along the tube tube 42, and the filter 48 for filtering foreign matter in the injection liquid is attached, At the end is a needle bundle (50) attached to the skin of the patient is attached.

여기서 상기와 같은 구성으로 이루어진 주사액 자동 주입기에 대한 작동상태를 첨부한 도 2와 3을 참조로 설명하면 다음과 같다.Referring to Figures 2 and 3 attached to the operating state for the automatic injection liquid injector having the above configuration as follows.

먼저, 상기 튜브관(42)에 부착되어 있는 주사액 공급밸브(44)를 통하여 주사약액을 주입하면, 주사액이 상기 주사기 몸체(38)의 피스톤(36)을 위쪽으로 밀면서 주사기 몸체(38) 내부에 채워지게 된다.First, when the injection liquid is injected through the injection liquid supply valve 44 attached to the tube tube 42, the injection liquid pushes upward the piston 36 of the syringe body 38 to the inside of the syringe body 38. Will be filled.

이때, 상기 피스톤(36)이 위쪽으로 밀리면서 피스톤(36) 위쪽 공간의 공기 압력은 상기 제2가스배출구(22)와 압력조절밸브(24)를 통하여 외부로 빠져나가기 때문에 주사액은 주사기 몸체(38)내에 용이하게 채워지게 된다.At this time, since the piston 36 is pushed upward, the air pressure in the space above the piston 36 is discharged to the outside through the second gas outlet 22 and the pressure regulating valve 24. Will be easily filled in.

상기와 같이, 주사액을 주사기 몸체(38)내에 채운 상태에서 상기 하우징(10)의 상부실(14)의 가압판(12)을 소정의 힘으로 가압시키면, 가압판(12)이 밑으로 밀리면서 그 내부의 고체물질(30)을 누르게 된다.As described above, when the pressure plate 12 of the upper chamber 14 of the housing 10 is pressed with a predetermined force while the injection liquid is filled in the syringe body 38, the pressure plate 12 is pushed downward and the inside thereof. Press the solid material (30).

다음으로, 상기 고체물질(30)은 격벽(20)을 찢으며 빠져나와, 하부실(18)내의 액체물질(32)에 담겨지게 되는 동시에 액체물질(32)내에서 발포되며 서로간의 화학적 반응을 일으켜 가스를 발생시키게 되는데, 이 가스발생원리를 상세히 설명하면 다음과 같다.Next, the solid material 30 is torn out of the partition wall 20, the solid material 30 is contained in the liquid material 32 in the lower chamber 18 and foamed in the liquid material 32 and chemical reaction between them The gas is generated, and this gas generation principle is described in detail as follows.

상기 고체물질(30)은 탄산수소나트륨(NaHCO3) 20 ~ 60 중량%, KBr 20 ~ 40 중량% 및 알루미나 20 ~ 40 중량%로 이루어진 고체 혼합물로서, 상부실(14)을 빠져나와 하부실(18)의 L-타르타르산(C4H6O6) 용액에 담겨지면 L-타르타르산 용액과 서로간에 화학적 반응을 함으로써 이산화탄소(CO2) 기체를 발생시키게 된다.The solid material 30 is a solid mixture composed of 20 to 60 wt% of sodium hydrogen carbonate (NaHCO 3), 20 to 40 wt% of KBr, and 20 to 40 wt% of alumina, and exits the upper chamber 14 and the lower chamber 18. When it is contained in the L-tartaric acid (C4H6O6) solution, the chemical reaction between the L-tartaric acid solution and each other generates carbon dioxide (CO2) gas.

이때의 이산화탄소 가스의 발생 압력은 5-14PSI(0.35kg/㎠ - 0.97kg/㎠ )이고, 상기한 고체물질(30)과 및 액체물질(32)간의 화학반응을 보다 구체화하여 나타내면 다음 반응식 1과 같다.The generation pressure of the carbon dioxide gas at this time is 5-14PSI (0.35kg / cm 2-0.97kg / cm 2), and the chemical reaction between the solid material 30 and the liquid material 32 is described in more detail. same.

2NaHCO3 + C4H6O6 → Na2C4H4O6 + 2H2O + 2CO22NaHCO3 + C4H6O6 → Na2C4H4O6 + 2H2O + 2CO2

다음으로, 상기와 같이 발생된 이산화탄소 가스는 하부실(18)에 둘러싸여 있는 가스통과성 박막(28)으로 빠져나가고, 빠져나간 가스는 하부실(18) 바닥면에 형성된 제1가스배출구(16)를 통하여 가스경유실(26)의 압력조절밸브(24)로 빠져나가게 된다.Next, the carbon dioxide gas generated as described above exits to the gas-permeable thin film 28 surrounded by the lower chamber 18, and the escaped gas is the first gas outlet 16 formed on the bottom surface of the lower chamber 18. Through the pressure control valve 24 of the gas passage chamber 26 through the.

이때, 상기 압력조절밸브(24)로 빠져나가는 이산화탄소가스의 배출 압력은 상술한 바와 같이 5 - 14PSI(0.35kg/㎠ - 0.97kg/㎠ )압력으로 빠져나가게 된다.At this time, the discharge pressure of the carbon dioxide gas exiting the pressure control valve 24 is exited at a pressure of 5-14PSI (0.35kg / cm2-0.97kg / cm2) as described above.

따라서, 0.35 - 0.97kg/㎠의 배출 압력을 갖는 이산화탄소 가스는 상기 압력조절밸브(24)를 빠져나와 가스경유실(26)의 바닥면에 연통되게 형성된 상기 제2가스배출구(22)를 경유하여 주사기 몸체(38)내로 빠져나가게 된다.Accordingly, the carbon dioxide gas having a discharge pressure of 0.35-0.79 kg / cm 2 passes through the second gas outlet 22 formed to exit the pressure control valve 24 and communicate with the bottom surface of the gas passage chamber 26. It exits into the syringe body 38.

예를들어, 상기 이산화탄소 가스가 최대 0.97kg/㎠ 이상의 높은 압력으로 압력조절밸브로 유입되면 0.97kg/㎠의 압력만큼은 상기와 같이 제2가스배출구(22)를 통하여 빠져나가고, 나머지 초과 압력은 상기 압력조절밸브(24)에서 제어되어 외부로 방출되어진다.For example, when the carbon dioxide gas is introduced into the pressure control valve at a high pressure of 0.97 kg / cm 2 or more, the pressure of 0.97 kg / cm 2 is released through the second gas outlet 22 as described above, and the remaining excess pressure is Controlled by the pressure regulating valve 24 is discharged to the outside.

이에따라, 상기 이산화탄소 가스는 압력조절밸브(24)를 경유함에 따라, 상기 제2가스배출구(22)를 통하여 주사기 몸체(38)내로 항상 일정한 압력으로 배출되어진다.Accordingly, the carbon dioxide gas is always discharged at a constant pressure into the syringe body 38 through the second gas outlet 22 through the pressure control valve 24.

다음으로, 상기 제2가스배출구(22)를 통하여 주사기 몸체(38)로 빠져나간 이산화탄소 가스는 주사기 몸체(38)내의 피스톤(36)을 밑으로 밀게 되는 바, 이때 상기 피스톤(36)은 항상 일정한 가스압력에 의하여 일정한 속도로 하향 이동하게 된다.Next, the carbon dioxide gas exiting the syringe body 38 through the second gas outlet 22 pushes the piston 36 in the syringe body 38 downward, where the piston 36 is always constant. It moves downward at a constant speed by the gas pressure.

이어서, 상기 피스톤(36)이 밑으로 밀리면서 주사기 몸체(38) 내부의 주사액이 주사기 몸체(38)의 하단끝에 형성된 배출구(40)를 통하여 배출되는데, 이때 피스톤(36)의 일정한 이동량에 따라 주사액도 항상 정속/정량으로 배출된다.Subsequently, as the piston 36 is pushed downward, the injection liquid inside the syringe body 38 is discharged through the discharge port 40 formed at the lower end of the syringe body 38, wherein the injection liquid is in accordance with a constant amount of movement of the piston 36. Is always discharged at constant speed / quantity.

따라서, 상기 주사기 몸체(38)의 배출구(40)를 통하여 배출된 주사액은 상기 튜브관(42)을 따라 튜브관(42) 끝에 부착된 주사바늘뭉치(50)의 주사바늘로 최종 배출되어 환자에게 공급된다.Therefore, the injection liquid discharged through the outlet 40 of the syringe body 38 is finally discharged to the patient by the needle of the needle bundle 50 attached to the end of the tube tube 42 along the tube tube 42 to the patient. Supplied.

이에따라, 환자에게 항상 일정한 시간동안 정속/정량의 주사액을 정확하게 공급할 수 있게 된다.As a result, it is possible to accurately supply a fixed / quantity injection solution to a patient at all times for a certain time.

한편, 상기 튜브관(42)을 따라 흐르는 주사액을 일시적으로 차단하고자 할때에는 상기 클램프(46)를 일측으로 이동시켜 튜브관(42)을 조여줌으로써, 주사액의 흐름을 일시적으로 차단할 수 있고, 또한 튜브관(42)상에 부착된 상기 필터(48)에서 혹시라도 섞여있는 이물질을 필터링하게 된다.On the other hand, when temporarily blocking the injection liquid flowing along the tube tube 42, by moving the clamp 46 to one side to tighten the tube tube 42, it is possible to temporarily block the flow of the injection liquid, and also the tube The filter 48 attached to the pipe 42 filters out any foreign matter mixed.

또한, 환자는 주사액을 주입받으면서 주사기 몸체(38)의 표면에 새겨진 잔량 및 배출량 표시 눈금(34)을 통하여 주사액의 공급 상태를 쉽게 관찰할 수 있다.In addition, the patient can easily observe the supply state of the injection liquid through the remaining amount and discharge indicator scale 34 engraved on the surface of the syringe body 38 while receiving the injection liquid.

이상에서 본 바와 같이, 본 발명에 따른 주사액 자동주입기에 의하면 고체물질과 액체물질간의 화학적 반응으로 발생되는 가스의 압에 의하여 주사기 몸체의피스톤이 일정한 속도로 전진되도록 함으로써, 주사기 몸체내의 주사액을 환자에게 일정 시간내에 항상 정속/정량으로 정확하게 공급할 수 있는 장점이 있다.As described above, according to the injection liquid auto-injector according to the present invention by causing the piston of the syringe body to be advanced at a constant speed by the pressure of the gas generated by the chemical reaction between the solid material and the liquid material, the injection liquid in the syringe body to the patient There is an advantage that it can always supply accurately at constant speed / quantity within a certain time.

또한, 환자에게 항상 일정 시간동안 정속/정량의 주사액을 정확하게 공급할 수 있게 됨에 따라, 주사액 자동공급기의 제품 신뢰도를 최대화시킬 수 있는 장점이 있다.In addition, since it is possible to always accurately supply a fixed speed / quantity injection solution to a patient for a certain time, there is an advantage of maximizing the product reliability of the auto injection solution.

특히, 상기 주사기몸체의 표면에 새겨진 눈금을 통하여 환자가 주사액의 정량공급상태를 확인할 수 있어, 주사액의 공급이 제대로 이루어지고 있는지 궁금해하는 환자의 불안한 심정을 안심시킬 수 있는 효과가 있다.In particular, the patient is able to check the quantitative supply state of the injection solution through the scale engraved on the surface of the syringe body, there is an effect that can be assured of anxiety of the patient wondering whether the supply of the injection solution is properly made.

Claims (5)

상면에 가압판(12)이 누름 가능하게 일체로 형성된 상부실(14)과, 바닥면에 제1가스배출구(16)가 형성된 하부실(18)과, 상기 상부실(14)과 하부실(18)을 나누어주는 격벽(20)과, 일측에는 상기 제1가스배출구와 연통되는 압력조절밸브(24)가 부착되고 바닥면에는 상기 압력조절밸브(24)와 연통되는 제2가스배출구(22)가 형성된 가스경유실(26)로 이루어진 하우징(10)과;The upper chamber 14 integrally formed on the upper surface of the pressing plate 12 so as to be pressed, the lower chamber 18 having the first gas outlet 16 formed on the bottom surface, the upper chamber 14 and the lower chamber 18 The partition wall 20 for dividing a) and a pressure control valve 24 communicating with the first gas outlet are attached to one side thereof, and a second gas outlet 22 communicating with the pressure control valve 24 is attached to the bottom surface thereof. A housing 10 formed of the gas gas passage chamber 26 formed therein; 상기 하부실(18)의 바닥면과 둘레면을 감싸며 부착된 기체통과성 박막(28)과;A gas-permeable thin film 28 wrapped around the bottom surface and the circumferential surface of the lower chamber 18; 상기 상부실(14)에 내재되는 고체물질(30)과;A solid material 30 embedded in the upper chamber 14; 상기 기체통과성 박막(28)에 의하여 밑으로 통과되지 않고 하부실(18)내에 채워지는 액체물질(32)과;A liquid substance 32 filled in the lower chamber 18 without passing downward by the gas-permeable thin film 28; 상기 가스경유실(26)의 제2가스배출구(22)와 연통되며 일체로 형성되고, 피스톤(36)이 내설되어 있으며, 표면에는 주사액의 주입 및 배출량을 알려주도록 눈금(34)이 표시된 주사기몸체(38)로 구성된 것을 특징으로 하는 주사액 자동주입기.In communication with the second gas outlet 22 of the gas passage chamber 26 and integrally formed, the piston 36 is built-in, the surface of the syringe body 34 is marked on the surface to indicate the injection and discharge of the injection Injection liquid auto-injector, characterized in that consisting of (38). 제 1 항에 있어서, 상기 고체물질(30)은 탄산수소나트륨(NaHCO3) 20 ~ 60 중량%, KBr 20 ~ 40 중량% 및 알루미나 20 ~ 40 중량%로 이루어진 고체 혼합물인 것을 특징으로 하는 주사액 자동주입기.The injection solution autoinjector according to claim 1, wherein the solid material 30 is a solid mixture composed of 20 to 60 wt% of sodium hydrogen carbonate (NaHCO3), 20 to 40 wt% of KBr, and 20 to 40 wt% of alumina. . 제 1 항에 있어서, 상기 액체물질(32)은 L-타르타르산(C4H6O6) 용액인 것을 특징으로 하는 주사액 자동주입기.The injection liquid autoinjector according to claim 1, wherein the liquid substance (32) is an L-tartaric acid (C4H6O6) solution. 제 1 항에 있어서, 상기 피스톤(36)의 하부 형상은 상기 주사기 몸체(38)의 하부 배출구쪽 형상과 동일하게 형성된 것을 특징으로 하는 주사액 자동 주입기.The injection liquid auto-injector according to claim 1, characterized in that the lower shape of the piston (36) is the same as the lower outlet side of the syringe body (38). 제 1 항에 있어서, 상기 고체물질과 액체물질의 화학적 반응으로 발생하는 이산화탄소 가스의 배출압력은 5 - 14PSI(0.35kg/㎠ - 0.97kg/㎠ )인 것을 특징으로 하는 주사액 자동 주입기.The injection liquid auto-injector according to claim 1, wherein the discharge pressure of carbon dioxide gas generated by the chemical reaction between the solid material and the liquid material is 5-14 PSI (0.35 kg / cm 2-0.97 kg / cm 2).
KR1020000042128A 1999-08-31 2000-07-22 An automatic pouring apparatus of an injection KR100365163B1 (en)

Priority Applications (16)

Application Number Priority Date Filing Date Title
KR2020000020932U KR200205619Y1 (en) 1999-08-31 2000-07-22 An automatic pouring apparatus of an injection
KR1020000042128A KR100365163B1 (en) 2000-07-22 2000-07-22 An automatic pouring apparatus of an injection
JP2002517123A JP4689142B2 (en) 2000-07-22 2000-12-23 Liquid supply device
CNA2005100699623A CN1676171A (en) 2000-07-22 2000-12-23 Liquid supply apparatus
EP10184270A EP2308549A1 (en) 2000-07-22 2000-12-23 Closure cap having an air vent
CNB008197652A CN1227042C (en) 2000-07-22 2000-12-23 Liquid supply apparatus
CN2005100699604A CN1676169B (en) 2000-07-22 2000-12-23 Liquid supply apparatus
EP00986039.6A EP1305066B1 (en) 2000-07-22 2000-12-23 Liquid supply apparatus
PCT/KR2000/001530 WO2002011791A1 (en) 2000-07-22 2000-12-23 Liquid supply apparatus
CN2005100699619A CN1676170B (en) 2000-07-22 2000-12-23 Liquid supply apparatus
AU2001222342A AU2001222342A1 (en) 2000-07-22 2000-12-23 Liquid supply apparatus
KR2020010001709U KR200226977Y1 (en) 2000-07-22 2001-01-20 Cap for use with medicine supplying tube
US10/350,165 US6786365B2 (en) 2000-07-22 2003-01-21 Liquid supply apparatus
US10/933,337 US6964356B2 (en) 2000-07-22 2004-09-03 Liquid supply apparatus
JP2010256248A JP5348700B2 (en) 2000-07-22 2010-11-16 Liquid supply device
JP2012210528A JP2012250088A (en) 2000-07-22 2012-09-25 Liquid supply device

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014104857A1 (en) * 2012-12-28 2014-07-03 메디칸(주) Static pressure and metering pump
WO2018230792A1 (en) 2017-03-15 2018-12-20 김휘화 Semi-automatic syringe having improved safety
US10994079B2 (en) 2017-06-15 2021-05-04 Hwi Hwa KIM Semiautomatic syringe with improved safety

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100456273B1 (en) * 2001-11-16 2004-11-10 김용년 Solid formulation producing carbon dioxide when contacting liquid acid and a method of preparing the same
KR100507593B1 (en) * 2002-02-08 2005-08-10 주식회사 이화양행 Liquid supply apparatus
KR102018909B1 (en) * 2018-05-24 2019-09-05 주식회사 이화메디텍 Gas trap member and apparatus for injecting liquid medicine comprising the same
KR102599610B1 (en) * 2021-08-12 2023-11-08 김용현 Medicinal liquid injection apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014104857A1 (en) * 2012-12-28 2014-07-03 메디칸(주) Static pressure and metering pump
WO2018230792A1 (en) 2017-03-15 2018-12-20 김휘화 Semi-automatic syringe having improved safety
US10994079B2 (en) 2017-06-15 2021-05-04 Hwi Hwa KIM Semiautomatic syringe with improved safety

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