KR102165159B1 - disposable safety syringe - Google Patents

disposable safety syringe Download PDF

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Publication number
KR102165159B1
KR102165159B1 KR1020180035535A KR20180035535A KR102165159B1 KR 102165159 B1 KR102165159 B1 KR 102165159B1 KR 1020180035535 A KR1020180035535 A KR 1020180035535A KR 20180035535 A KR20180035535 A KR 20180035535A KR 102165159 B1 KR102165159 B1 KR 102165159B1
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South Korea
Prior art keywords
hub
receiving portion
injection needle
piston
circumference
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KR1020180035535A
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Korean (ko)
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KR20190113189A (en
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최용준
홍기태
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(주) 에스엔제이
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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
    • A61M5/32—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    • A61M5/322—Retractable needles, i.e. disconnected from and withdrawn into the syringe barrel by the piston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
    • A61M5/178—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
    • A61M5/3221—Constructional features thereof, e.g. to improve manipulation or functioning
    • 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
    • A61M5/3232—Semi-automatic needle retraction, i.e. in which triggering of the needle retraction requires a deliberate action by the user, e.g. manual release of spring-biased retraction means
    • 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
    • A61M5/50—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 having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
    • 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
    • A61M2205/27—General characteristics of the apparatus preventing use
    • A61M2205/273—General characteristics of the apparatus preventing use preventing reuse, e.g. of disposables

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (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

본 발명은 주사침이 자동으로 인입되는 1회용 안전 주사기에 관한 것으로서, 더욱 상세하게는 인체에 사용한 주사침에 찔려 2차 감염 발생을 예방하기 위해 인체에 삽입한 금속제 주사침이 탄성체의 탄성복원력에 의해 인체로부터 자동으로 빠져나와 주사기의 피스톤 내부로 인입되는 1회용 안전 주사기에 관한 것이다.
구성은 다음과 같다.
원통실린더(10), 손잡이(20)가 형성된 피스톤(21), 전방에 주사침(30)이 결합된 허브(40)로 이루어진 주사기에 있어서,
상기 원통실린더(10) 전방에 허브(40)가 수용되는 허브수용부(11)를 형성하되, 상기 허브수용부(11)를 전방허브수용부(11a)와 상기 전방허브수용(11A)의 지름보다 지름이 더 넓은 후방허브수용부(11b)로 구분하여
상기 전방허브수용부(11a)에 탄성스프링(50)이 수용되고
상기 전방허브수용부(11a) 후방에 상기 후방허브수용부(11b)의 전방 원주연에 상기 전방 원주연의 벽을 향할 수록 점차 경사면이 높은 경사면(11c)과,
전방이 길이방향으로 절개된 절개부(60) 내측에 걸림부(61)가 형성되고 외측 후방 원주연에 연질의 오링(62)이 위치된 락부재(63)와,
상기 허브(40)는 전방허브(41)와 후방허브(42)로 구분하여 전방허브(41)는 탄성스프링의 중앙을 가로질러 주사침(30)이 전방허브수용부(11a)의 전방으로 노출되도록 하고,
후방허브(42)는 상기 락부재(63)에 수용되되 탄성스프링(50)을 후방에서 받쳐주는 받침부(42a)가 있고,
상기 락부재(63)의 걸림부(61)에 걸림되도록 상기 후방허브(42) 원주연에 형성한 걸리홈(42b)이 있으며,
상기 피스톤(21)은 상기 피스톤(21)의 길이방향으로 상기 탄성스프링(40)에 의해 허브(40)가 후퇴하면 허브(40)가 수용될 수 있도록 형성한 허부수용공간 (30a)과, 상기 허브수용공간(31)의 전방이 개방되되 막개(32)에 의해 밀폐되어 있는 구성을 포함한 것을 특징으로 하는 주사침이 자동으로 인입되는 1회용 안전 주사기.The present invention relates to a disposable safety syringe into which an injection needle is automatically inserted, and more particularly, a metal injection needle inserted into the human body in order to prevent the occurrence of secondary infection by being stabbed by an injection needle used in the human body It relates to a disposable safety syringe that automatically exits and is inserted into the piston of the syringe.
The composition is as follows.
In a syringe comprising a cylindrical cylinder 10, a piston 21 having a handle 20, and a hub 40 to which an injection needle 30 is coupled to the front,
A hub receiving portion 11 is formed in front of the cylindrical cylinder 10 to accommodate the hub 40, and the hub receiving portion 11 is the diameter of the front hub receiving portion 11a and the front hub receiving portion 11A. Divided into a rear hub receiving part (11b) with a larger diameter than
The elastic spring 50 is accommodated in the front hub receiving portion 11a
An inclined surface 11c having a higher inclined surface toward the wall of the front circumference at the front circumference of the rear hub receiving part 11b at the rear of the front hub receiving part 11a,
A locking member (63) in which a locking part (61) is formed inside the cutout (60) whose front is cut in the longitudinal direction, and a soft O-ring (62) is located at the outer rear circumference;
The hub 40 is divided into a front hub 41 and a rear hub 42 so that the front hub 41 crosses the center of the elastic spring so that the injection needle 30 is exposed to the front of the front hub receiving portion 11a. and,
The rear hub 42 is accommodated in the lock member 63 and has a support portion 42a that supports the elastic spring 50 from the rear,
There is a hook groove (42b) formed in the circumference of the rear hub (42) so as to be caught by the hooking portion (61) of the lock member (63)
The piston 21 includes an imaginary receiving space 30a formed to accommodate the hub 40 when the hub 40 is retracted by the elastic spring 40 in the longitudinal direction of the piston 21, and the A disposable safety syringe into which an injection needle is automatically drawn, comprising a configuration in which the front of the hub receiving space 31 is opened but sealed by a stopper 32.

Description

주사침이 자동으로 인입되는 1회용 안전 주사기{disposable safety syringe}Disposable safety syringe with automatic needle insertion {disposable safety syringe}

본 발명은 주사침이 자동으로 인입되는 1회용 안전 주사기에 관한 것으로서, 더욱 상세하게는 인체에 사용한 주사침에 찔려 2차 감염 발생을 예방하기 위해 인체에 삽입한 금속제 주사침이 탄성체의 탄성복원력에 의해 인체로부터 자동으로 빠져나와 주사기의 피스톤 내부로 인입되는 1회용 안전 주사기에 관한 것이다.The present invention relates to a disposable safety syringe into which an injection needle is automatically inserted, and more particularly, a metal injection needle inserted into the human body in order to prevent the occurrence of secondary infection by being stabbed by an injection needle used in the human body from the human body by the elastic restoring force of the elastic body. It relates to a disposable safety syringe that automatically exits and is inserted into the piston of the syringe.

병원은 업무와 관련된 상해가 증가하고 있는 유해한 환경으로 간주되고 있다. 병원 직원들은 생물학적, 화학적 및 물리적인 요인에 노출되어 직업성 질환에 이환(罹患)될 수 있다.Hospitals are regarded as a hazardous environment with increasing occupational injuries. Hospital staff are exposed to biological, chemical, and physical factors that can lead to occupational diseases.

이러한 질환에 감염되는 일반적이고 가장 흔한 전파경로는 환자의 오염된 혈액이 점막이나 상처에 접촉되거나, 주삿바늘 또는 환자에게 사용한 각종 날카로운 기구에 찔리는 사고에 의한 것이다. 이런 상해는 병원 종사자들에게 매우 심각하고 치명적인 질병이 전파될 수 있는 직업적인 잠재적 위험을 안고 있다.The most common and most common transmission route for infection with these diseases is the accident that contaminated blood of a patient comes into contact with mucous membranes or wounds, or is punctured by injection needles or various sharp instruments used on the patient. These injuries pose a potential occupational risk to the transmission of very serious and fatal diseases to hospital workers.

주삿바늘에 의한 상해는 출혈 여부에 관계없이 환자의 혈액에 오염되기 전이나 후에 일회용 주사기, 혈당 측정용 바늘 또는 수술이나 침습적 처치용 바늘을 포함한 환자에게 사용하여 오염에 노출된 주삿바늘에 의하여 피부가 찢어지거나 긁히거나 찔리는 것을 말하며, 이는 안전을 위해 마련된 주삿바늘 보호 캡을 다시 덮어 씌우는 과정에서도 빈번하게 발생한다.Injury caused by injection needles is used on patients including disposable syringes, blood glucose measurement needles, or surgical or invasive treatment needles before or after being contaminated with the patient's blood, regardless of bleeding. It refers to being torn, scratched, or punctured, and this frequently occurs even in the process of re-covering the injection needle protection cap provided for safety.

혈액 매개 감염 질환이란 인간의 혈액 내에 있는 B형 간염, C형 간염, HIV, 매독균 등의 병원균에 의해 발생하는 질환이다. 병원직원의 혈액 매개 감염 질환은 주삿바늘을 이용한 처치가 발전하고 혈액을 직접 다루는 검사 기술이 많아짐으로 인하여 직원에게 감염을 일으킬 비중이 점차 증가하고 있다. 혈액 노출로 전파되는 질병은Blood-borne infectious diseases are diseases caused by pathogens such as hepatitis B, hepatitis C, HIV, and syphilis in human blood. In the case of blood-borne infections of hospital staff, the proportion of infecting staff is gradually increasing due to the advancement of treatment using injection needles and the increasing number of testing techniques that directly deal with blood. Diseases transmitted by blood exposure

바이러스, 박테리아, 기생충 등 20 여종의 질병이 있다.There are more than 20 diseases including viruses, bacteria, and parasites.

병원에서 일하는 많은 직원들은 혈액 매개성 감염 질환에 노출되고 있으며, 그 중에서도 주삿바늘에 의한 상해가 빈번한 것으로 보고되고 있다.Many hospital staff are exposed to blood-borne infections, and injuries from injection needles are reported to be frequent.

안전주사기는 재사용 방지 및 주사기 바늘의 위험성을 없애기 위한 주사기로서, 종래의 안전주사기로는 주사기 바늘에 커버를 씌우는 방식, 주사기 바늘을 주사기 안으로 회수하는 방식, 바늘이 없이 주사하는 방식 등이 있다.A safety syringe is a syringe for preventing reuse and eliminating the risk of a syringe needle, and conventional safety syringes include a method of putting a cover on a syringe needle, a method of collecting a syringe needle into a syringe, and a method of injecting without a needle.

복수의 종래 안전주사기 중에서 대한민국 특허청 공개번호 10-2004-0031198호를 살펴보면,Looking at Korean Patent Office Publication No. 10-2004-0031198 among a plurality of conventional safety syringes,

도 7에 도시된 바와같이 돌출부(36) 및 돌기(37) 주사액의 투여가 완료되면 인As shown in FIG. 7, when the injection of the protrusion 36 and the protrusion 37 is completed,

체로 부터 주삿바늘(22)을 빼내고, 플런저(30)의 손잡이부(35)를 역회전시키면 허브(21)의 요홈(26)에 끼워진 돌기(35),(37)에 의하여 허브(21)를 포함한 주삿바늘 결합체(20)는 플런저(30)와 함께 역회전되어 넥크부(11)와의 나사결합이 해제되면서 실린더(10) 내부로 약간 이동된다.When the injection needle (22) is removed from the sieve and the handle portion (35) of the plunger (30) is rotated in reverse, the hub (21) is opened by the projections (35), (37) fitted in the groove (26) of the hub (21). The included injection needle assembly 20 is rotated in reverse together with the plunger 30 so that the screw connection with the neck portion 11 is released and slightly moves into the cylinder 10.

플런저(30) 및 허브(21)가 회전되어 허브(21)가 넥크부(11)로부터 나사결합이 완전히 해제된 다음 플런저(30)를 후퇴시키면 돌기(35),(37)가 걸림턱부(21e')에 걸리게 되어 허브(21)를 포함한 주삿바늘 결합체(20)는 도 8에 도시된 바와 같이 실린더 내부로 들어오게 되는데, 상기 로드(34)가 원상태인 수직방향으로 복귀되면서 허브의 원추형 내벽(24g')을 일측으로 압박하여 허브(21)가 일측으로 기울어지게 되고 이에 따라 주삿바늘(22)의 선단이 기울어져 실린더(10)의 일측면에 접촉된다.When the plunger 30 and the hub 21 are rotated so that the hub 21 is completely disengaged from the neck part 11, and then the plunger 30 is retracted, the protrusions 35 and 37 become the locking projections 21e. '), the injection needle assembly 20 including the hub 21 is brought into the cylinder as shown in FIG. 8, and the rod 34 returns to the original vertical direction, and the conical inner wall of the hub ( 24g') is pressed to one side so that the hub 21 is inclined to one side, and accordingly, the tip of the injection needle 22 is inclined to contact one side of the cylinder 10.

상기에서 살펴본 바와 같이 이용자가 수작업으로 주삿바늘을 실린더 내부로 수용시키는 방법이다.As described above, this is a method in which the user manually accommodates the injection needle into the cylinder.

이러한 방법으로 주삿바늘을 실린더 내부로 수용하다보니 이용자가 번거로워 사용을 기피할 수 있다.As the injection needle is accommodated in the cylinder in this way, the user can avoid using it because it is cumbersome.

그리고 시중에 유통되고 있는 수지침을 도 4에서 살펴보면 다음과 같다.And looking at the resin needles distributed in the market in Figure 4 are as follows.

전방에 금속주사침(150)이 통과하고 수액이 흐르도록 길이방향 중앙이 관통된 튜브(110)와;The metal injection needle 150 passes in the front and the tube 110 is passed through the center in the longitudinal direction so that the fluid flows;

상기 튜브(110) 후방에 상기 튜브(110)가 연결되는 연결구(120)가 있고 There is a connector 120 to which the tube 110 is connected at the rear of the tube 110

실린더(130) 전방의 삽입구(130)가 연결되는 삽입부(121)가 있는 튜브지지부(122)와;A tube support portion 122 having an insertion portion 121 to which the insertion hole 130 in front of the cylinder 130 is connected;

상기 튜브지지부(122)의 삽입부(121)에 착탈되는 삽입구(130)가 있고 피스톤(140)이 수용되는 피스톤실(131)이 있는 실린더(132)와,A cylinder 132 having an insertion hole 130 that is attached to and detached from the insertion portion 121 of the tube support portion 122 and a piston chamber 131 in which the piston 140 is accommodated,

상기 피스톤실(131)의 길이방향으로 슬라이드 이동하는 피스톤(140)과 The piston 140 slides in the longitudinal direction of the piston chamber 131 and

상기 피스톤(140)은 전방에 금속주사침(150) 후방이 연결되는 연결구(141)가 있고 후방은 코일스프링(160)의 후방을 받쳐주는 받침부(142)가 있으며 The piston 140 has a metal injection needle 150 at the front and a connector 141 to which the rear is connected, and the rear has a support 142 that supports the rear of the coil spring 160

상기 금속주사침(150)은 상기 실린더(132)의 삽입구(130)와 튜브(110)를 관통하며 상기 코일스프링(160)은 피스톤(40)이 실린더(132)의 전방으로 이동하면 압축되는 구성을 포함한 상태에서,The metal injection needle 150 passes through the insertion hole 130 and the tube 110 of the cylinder 132, and the coil spring 160 is compressed when the piston 40 moves to the front of the cylinder 132. In the state of including,

상기 피스톤(140)을 실린더(132)의 전방으로 이동하면서 코일스프링(160)을 압축시킨 다음 피스톤(140)이 후퇴하지 못하도록 실린더(132) 원주연의 관통공(3)에 설치한 스톱퍼(4)에 의해 피스톤이 걸림상태가 된다. A stopper (4) installed in the through hole (3) of the circumference of the cylinder (132) to prevent the piston (140) from retreating after compressing the coil spring (160) while moving the piston (140) forward of the cylinder (132). ), the piston is locked.

그 후 스토퍼(4)의 걸림상태가 해제되면 피스톤(140)은 코일스프링(160)의 탄성복원력에 의해 실린더 후방으로 후퇴하는 것이다.After that, when the stopper 4 is released, the piston 140 retreats to the rear of the cylinder by the elastic restoring force of the coil spring 160.

상기 이상의 실시예는 후술에서 설명되는 본원발명의 실시예와 일부 이상이 동일하여 설명이 서로 중복된다. 그러므로 더 이상의 시중 수지침에 대한 실시예의 설명은 생략하니 본원발명의 실시예에서 참고하기 바란다.The above embodiments are partially the same as the embodiments of the present invention described below, and thus descriptions are overlapped with each other. Therefore, since the description of the embodiment of the resin needle on the market is omitted, please refer to the embodiment of the present invention.

여기서 상기 시중의 수지침의 문제점을 살펴보면 다음과 같다.Here, the problems of the commercially available resin needles are as follows.

코일스프링(160)을 압축하면서 실린더 전방으로 이동하여 스톱되는 피스톤(140)은 별도의 스톱장치에 의해 피스톤(140)이 스톱되는 문제점이 있어 가격상승요인이 있고,The piston 140, which moves to the front of the cylinder while compressing the coil spring 160 and is stopped, has a problem in that the piston 140 is stopped by a separate stop device, so there is a price increase factor.

피스톤(140)을 실린더 후방으로 후퇴시키기 위해 실린더 측면에 있는 스토퍼의 스톱을 해제 시켜야하는 번거로움이 있고, 이용자 외 유통과정에 부주의로 어느 때나 스토퍼가 조작될 수 있는 것이다. In order to retreat the piston 140 to the rear of the cylinder, there is a hassle of releasing the stop of the stopper on the side of the cylinder, and the stopper can be operated at any time inadvertently in the distribution process other than the user.

상기 종래의 문제점을 해결하기 위해 안출된 것으로서, As conceived to solve the above conventional problems,

본 발명은 1회용 주사기에 있어서, 인체에 사용한 주사침에 찔려 2차 감염 발생을 예방하기 위해 인체에 삽입한 금속제 주사침이 탄성체의 탄성복원력(후술의 탄성스프링에 해당)에 의해 인체로부터 자동으로 빠져나와 주사기의 피스톤 내부로 인입되는 1회용 안전 주사기를 제공하고자 한다.In the present invention, in a disposable syringe, a metal injection needle inserted into the human body to prevent the occurrence of secondary infection by being stabbed by an injection needle used in the human body automatically escapes from the human body by the elastic restoring force of the elastic body (corresponding to the elastic spring described later). It is intended to provide a disposable safety syringe that is inserted into the piston of the syringe.

첨부한 도면에 의해 구성을 살펴보면,Looking at the configuration by the attached drawing,

원통실린더(10), 손잡이(20)가 형성된 피스톤(21), 전방에 주사침(30)이 결합된 허브(40)로 이루어진 주사기에 있어서, In a syringe comprising a cylindrical cylinder 10, a piston 21 having a handle 20, and a hub 40 to which an injection needle 30 is coupled to the front,

상기 원통실린더(10) 전방에 허브(40)가 수용되는 허브수용부(11)를 형성하되, 상기 허브수용부(11)를 전방허브수용부(11a)와 상기 전방허브수용(11A)의 지름보다 지름이 더 넓은 후방허브수용부(11b)로 구분하여 A hub receiving portion 11 is formed in front of the cylindrical cylinder 10 to accommodate the hub 40, and the hub receiving portion 11 is the diameter of the front hub receiving portion 11a and the front hub receiving portion 11A. Divided into a rear hub receiving part (11b) with a larger diameter than

상기 전방허브수용부(11a)에 탄성스프링(50)이 수용되고The elastic spring 50 is accommodated in the front hub receiving portion 11a

상기 전방허브수용부(11a) 후방에 상기 후방허브수용부(11b)의 전방 원주연에 상기 전방 원주연의 벽을 향할 수록 점차 경사면이 높은 경사면(11c)과,An inclined surface 11c having a higher inclined surface toward the wall of the front circumference at the front circumference of the rear hub receiving part 11b at the rear of the front hub receiving part 11a,

전방이 길이방향으로 절개된 절개부(60) 내측에 걸림부(61)가 형성되고 외측 후방 원주연에 연질의 오링(62)이 위치된 락부재(63)와,A locking member (63) in which a locking part (61) is formed inside the cutout (60) whose front is cut in the longitudinal direction, and a soft O-ring (62) is located at the outer rear circumference;

상기 허브(40)는 전방허브(41)와 후방허브(42)로 구분하여 전방허브(41)는 탄성스프링의 중앙을 가로질러 주사침(30)이 전방허브수용부(11a)의 전방으로 노출되도록 하고, The hub 40 is divided into a front hub 41 and a rear hub 42 so that the front hub 41 crosses the center of the elastic spring so that the injection needle 30 is exposed to the front of the front hub receiving portion 11a. and,

후방허브(42)는 상기 락부재(63)에 수용되되 탄성스프링(50)을 후방에서 받쳐주는 받침부(42a)가 있고The rear hub 42 is accommodated in the lock member 63 and has a support portion 42a that supports the elastic spring 50 from the rear.

상기 락부재(63)의 걸림부(61)에 걸림되도록 상기 후방허브(42) 원주연에 형성한 걸리홈(42b)이 있으며,There is a hook groove (42b) formed in the circumference of the rear hub (42) so as to be hooked to the hooking portion (61) of the lock member (63),

상기 피스톤(21)은 상기 피스톤(21)의 길이방향으로 상기 탄성스프링(40)에 의해 허브(40)가 후퇴하면 허브(40)가 수용될 수 있도록 형성한 허브수용공간 (30a)과, 상기 허브수용공간(31)의 전방이 개방되되 막개(32)에 의해 밀폐되어 있는 구성이다.The piston 21 includes a hub accommodation space 30a formed to accommodate the hub 40 when the hub 40 is retracted by the elastic spring 40 in the longitudinal direction of the piston 21, and the It is a configuration in which the front of the hub accommodation space 31 is open but closed by the makgae 32.

상기 후방허브(42) 후방 끝단 원주연에 칼날(42c )이 형성되어 있어서 칼날이 후퇴하는 과정에 막개(70)를 절단하면서 허브수용공간(30a)으로 허브(40)가 수용된다.The rear hub 42 has a blade 42c formed at the circumference of the rear end thereof, and thus the hub 40 is accommodated in the hub receiving space 30a while cutting the makgae 70 in the process of retreating the blade.

본 발명은 1회용 주사기에 있어서, 인체에 사용한 주사침에 찔려 2차 감염 발생을 예방하기 위해 인체에 삽입한 금속제 주사침이 탄성체의 탄성복원력에 의해 인체로부터 자동으로 빠져나와 주사기의 피스톤 내부로 인입되는 1회용 안전 주사기가 제공된다.In the present invention, in a disposable syringe, a metal needle inserted into the human body to prevent secondary infection by being stabbed by an injection needle used in the human body is automatically ejected from the human body by the elastic restoring force of the elastic body and inserted into the piston of the syringe. A disposable safety syringe is provided.

상기 이상의 효과는 구체적인 내용에서 더 밝혀진다.The above-described effects are further revealed in the specific content.

도 1의 가)는 본 발명의 1회용 안전 주사기의 사시도이고,
나)는 도 1의 가)의 분해 단면도,
도 2는 본 발명은 1회용 안전 주사기의 내부와 동작 상태를 나타낸 단면도로서,
가)의 상태에서 나)의 상태로 탄성스프링에 의해 허브가 후퇴한 상태이다.
도 3은 도 1의 가)는 요부확대도,
도 4의 가), 나)는 종래의 혈액이나 수액 등을 혈관에 주사할 때 사용하는 혈관 수지침이다.1A) is a perspective view of a disposable safety syringe of the present invention,
B) is an exploded cross-sectional view of A) in FIG.
Figure 2 is a cross-sectional view showing the interior and operating state of the present invention disposable safety syringe,
The hub is retracted from the state of a) to the state of b) by the elastic spring.
3 is an enlarged view of a main part of FIG. 1,
4A) and B) are vascular resin needles used when injecting blood or fluid into a blood vessel.

첨부한 도면에 의해 구성을 제차 살펴보고 그 구성에 따른 실시예를 설명하고자 한다.The configuration will be described with reference to the accompanying drawings and embodiments according to the configuration will be described.

원통실린더(10), 손잡이(20)가 형성된 피스톤(21), 전방에 주사침(30)이 결합된 허브(40)로 이루어진 주사기에 있어서,In a syringe comprising a cylindrical cylinder 10, a piston 21 having a handle 20, and a hub 40 to which an injection needle 30 is coupled to the front,

상기 원통실린더(10) 전방에 허브(40)가 수용되는 허브수용부(11)를 형성하되Forming a hub receiving portion 11 in which the hub 40 is accommodated in front of the cylindrical cylinder 10

상기 허브수용부(11)를 전방허브수용부(11a)와 상기 전방허브수용부(11A)의 지름보다 지름이 더 넓은 후방허브수용부(11b)로 구분하여 The hub receiving portion 11 is divided into a front hub receiving portion 11a and a rear hub receiving portion 11b having a diameter greater than that of the front hub receiving portion 11A.

상기 전방허브수용부(11a)에 탄성스프링(50)이 수용되고,The elastic spring 50 is accommodated in the front hub receiving portion 11a,

상기 후방허브수용부(11b)의 전방에 상기 전방 원주연의 벽을 향할 수록 점차 경사진 경사면(11c)과,An inclined surface 11c that gradually inclines toward the wall of the front circumference in front of the rear hub receiving portion 11b,

전방이 길이방향으로 절개된 절개부(60) 내측에 걸림부(61)가 형성되고 외측 후방 원주연에 연질의 오링(62)이 위치된 락부재(63)와,A locking member (63) in which a locking part (61) is formed inside the cutout (60) whose front is cut in the longitudinal direction, and a soft O-ring (62) is located at the outer rear circumference;

상기 허브(40)는 전방허브(41)와 후방허브(42)로 구분하여 전방허브(41)는 탄성스프링의 중앙을 가로질러 주사침(30)이 전방허브수용부(11a)의 전방으로 노출되도록하고, The hub 40 is divided into a front hub 41 and a rear hub 42 so that the front hub 41 crosses the center of the elastic spring so that the injection needle 30 is exposed to the front of the front hub receiving portion 11a. and,

후방허브(42)는 상기 락부재(63)에 수용되되 탄성스프링(50)을 후방에서 받쳐주는 받침부(42a)가 있고,The rear hub 42 is accommodated in the lock member 63 and has a support portion 42a that supports the elastic spring 50 from the rear,

상기 락부재(63)의 걸림부(61)에 걸림되도록 상기 후방허브(42) 원주연에 형성한 걸림홈(42b)이 있으며,There is a locking groove 42b formed in the circumference of the rear hub 42 so as to be caught in the locking part 61 of the locking member 63,

상기 피스톤(21)은 상기 피스톤(21)의 길이방향으로 상기 탄성스프링(40)에 의해 허브(40)가 후퇴하면 허브(40)가 수용될 수 있도록 형성한 허브수용공간 (30a)과, 상기 허브수용공간(30a)의 전방이 개방되되 막개(70)에 의해 밀폐되어 있는 구성이다.The piston 21 includes a hub accommodation space 30a formed to accommodate the hub 40 when the hub 40 is retracted by the elastic spring 40 in the longitudinal direction of the piston 21, and the It is a configuration in which the front of the hub accommodation space 30a is opened but closed by the makgae 70.

상기 후방허브(42) 후방 끝단 원주연에 칼날(42c)이 형성되어 있어서 칼날이 후퇴하는 과정에 막개(70)를 절단하면서 허브수용공간(30a)으로 허브(40)가 수용된다.The rear hub 42 has a blade 42c formed on the circumference of the rear end thereof, and thus the hub 40 is accommodated in the hub accommodation space 30a while cutting the makgae 70 in the process of retreating the blade.

상기 구성의 실시예를 살펴보면 다음과 같다.An embodiment of the above configuration is as follows.

먼저 탄성스프링(50)을 전방허브수용부(11a)에 수용한 다음First, the elastic spring 50 is accommodated in the front hub receiving portion 11a, and then

락부재(63)를 후방허브수용부(11b)에 수용시켜 전후로 슬라이드 이동하도록 한다.The lock member 63 is accommodated in the rear hub receiving portion 11b to slide back and forth.

그 후 허브(40)를 락부재(63) 후방에서 전방허브수용부(11a)를 향하여 끼워가면 After that, when the hub 40 is inserted from the rear of the lock member 63 toward the front hub receiving portion 11a,

탄성스프링(50)이 압축되면서 후방허브(42)의 원주연에 형성한 걸림홈(42b)이 락부재(63)의 걸림부(61)에 걸리게 된다.As the elastic spring 50 is compressed, the locking groove 42b formed in the circumference of the rear hub 42 is caught in the locking portion 61 of the locking member 63.

이 상태에서 주사침(30)을 약물에 넣고 피스톤(21)을 후퇴하면 약물은 원통실린더(10) 전방으로 유입된다.In this state, when the injection needle 30 is inserted into the drug and the piston 21 is retracted, the drug is introduced into the front of the cylindrical cylinder 10.

그 후 환자에게 약물을 주입하기 위해 피스톤(21)을 전방으로 이동하면 약물은 환자에게 투입되는데 피스톤(21) 전방의 원주연(21a)이 락부재(63)의 후방 원주연을 밀면 락부재(63)가 전방으로 이동한다.Thereafter, when the piston 21 is moved forward to inject the drug into the patient, the drug is injected into the patient. When the circumferential edge 21a in front of the piston 21 pushes the rear circumference of the locking member 63, the locking member ( 63) moves forward.

그 이동 과정에 락부재(63)의 전방 내측이 전방허브수용부(11a) 후방에 형성된 경사면(11c)을 따라 이동하면 상기 락부재(63) 전방이 원주연의 양 방향으로 버려진다.During the movement process, when the front inner side of the lock member 63 moves along the inclined surface 11c formed behind the front hub receiving portion 11a, the front of the lock member 63 is discarded in both directions of the circumference.

이처럼 버려지면 걸림부(61) 또한 버려져 걸림홈(42b)으로부터 걸림이 해제 된다.When discarded in this way, the locking portion 61 is also discarded and the locking is released from the locking groove 42b.

그 걸림이 해제되면 허브(40)가 탄성스프링(50)에 의해 후퇴하여 허브수용공간(30a)에 수용되는데 그 과정에 후방허브(42)의 칼날(42c)이 막개(70)를 절단하거나 터트리면서 허브수용공간(30a)으로 수용되는 것이다.When the jam is released, the hub 40 is retracted by the elastic spring 50 and is accommodated in the hub accommodation space 30a. In the process, the blade 42c of the rear hub 42 cuts or bursts the makgae 70 It will be accommodated in the hub accommodation space (30a).

상기 허브수용부 전방은 전방으로 관통되어 있다. The front of the hub receiving part is penetrated forward.

상기 칼날(42c)은 후방허브(42) 후방 원주연에 날카롭게 형성되어 있고 막개(70)는 연질이면서 평판 형태로 되어 있다.The blade (42c) is sharply formed in the rear circumference of the rear hub (42), and the makgae (70) is soft and has a flat plate shape.

그러므로 칼날(42c)에 막개가 찢어지는 것이다.Therefore, the makgae is torn on the blade 42c.

그리고 약물은 허브의 중앙 관통구멍과 주사침 중앙 관통구멍을 지나 환자에게 투입된다.Then, the drug is injected into the patient through the central through hole of the hub and the central through hole of the needle.

10 : 원통실린더 11 : 허브수용부
11a: 전방허브수용부 11b: 후방허브수용부
11c: 경사면 20 : 손잡이
21 : 피스톤 21a: 원주연
30 : 주사침 30a : 허브수용공간
40 : 허브 41 : 전방허브
42 : 후방허브 42a: 받침부
42b: 걸림홈 42c: 칼날
50 : 탄성스프링 60 : 절개부
61 : 걸림부 62 : 오링
63 : 락부재 70 : 막개10: cylindrical cylinder 11: hub receiving part
11a: front hub receiving portion 11b: rear hub receiving portion
11c: slope 20: handle
21: piston 21a: circumferential edge
30: needle 30a: hub accommodation space
40: hub 41: front hub
42: rear hub 42a: support
42b: locking groove 42c: blade
50: elastic spring 60: incision
61: locking part 62: O-ring
63: lock member 70: stopper

Claims (1)

원통실린더(10), 손잡이(20)가 형성된 피스톤(21), 전방에 주사침(30)이 결합된 허브(40)로 이루어진 주사기에 있어서,
상기 원통실린더(10) 전방에 허브(40)가 수용되는 허브수용부(11)를 형성하되, 상기 허브수용부(11)를 전방허브수용부(11a)와 상기 전방허브수용부(11a)의 지름보다 지름이 더 넓은 후방허브수용부(11b)로 구분하여
상기 전방허브수용부(11a)에 탄성스프링(50)이 수용되고
상기 후방허브수용부(11b)의 전방에 상기 전방 원주연의 벽을 향할 수록 점차 경사진 경사면(11c)과,
전방이 길이방향으로 절개된 절개부(60) 내측에 걸림부(61)가 형성되고 외측 후방 원주연에 연질의 오링(62)이 위치된 락부재(63)와,
상기 허브(40)는 전방허브(41)와 후방허브(42)로 구분하여 전방허브(41)는 탄성스프링의 중앙을 가로질러 주사침(30)이 전방허브수용부(11a)의 전방으로 노출되도록 하고,
후방허브(42)는 상기 락부재(63)에 수용되되 탄성스프링(40)을 후방에서 받쳐주는 받침부(42a)가 있고,
상기 락부재(63)의 걸림부(61)에 걸림되도록 상기 후방허브(42) 원주연에 형성한 걸림홈(42b)이 있으며,
상기 피스톤(21)은 상기 피스톤(21)의 길이방향으로 상기 탄성스프링(40)에 의해 허브(40)가 후퇴하면 허브(40)가 수용될 수 있도록 형성한 허브수용공간 (30a)과, 상기 허브수용공간(31)의 전방이 개방되되 막개(32)에 의해 밀폐되어 있는 구성을 포함한 것을 특징으로 하는 주사침이 자동으로 인입되는 1회용 안전 주사기.
In a syringe comprising a cylindrical cylinder 10, a piston 21 having a handle 20, and a hub 40 to which an injection needle 30 is coupled to the front,
A hub receiving portion 11 is formed in front of the cylindrical cylinder 10 to accommodate the hub 40, and the hub receiving portion 11 is formed between the front hub receiving portion 11a and the front hub receiving portion 11a. Divided into a rear hub receiving part (11b) that is wider in diameter than the diameter
The elastic spring 50 is accommodated in the front hub receiving portion 11a
An inclined surface 11c gradually inclined toward the wall of the front circumference in front of the rear hub receiving portion 11b,
A locking member (63) in which a locking part (61) is formed inside the cutout (60) whose front is cut in the longitudinal direction, and a soft O-ring (62) is located at the outer rear circumference;
The hub 40 is divided into a front hub 41 and a rear hub 42 so that the front hub 41 crosses the center of the elastic spring so that the injection needle 30 is exposed to the front of the front hub receiving portion 11a. and,
The rear hub 42 is accommodated in the lock member 63 and has a support portion 42a that supports the elastic spring 40 from the rear,
There is a locking groove 42b formed in the circumference of the rear hub 42 so as to be caught in the locking part 61 of the locking member 63,
The piston 21 includes a hub accommodation space 30a formed to accommodate the hub 40 when the hub 40 is retracted by the elastic spring 40 in the longitudinal direction of the piston 21, and the Disposable safety syringe into which the injection needle is automatically drawn, characterized in that it includes a configuration in which the front of the hub receiving space 31 is opened but sealed by the stopper 32.
KR1020180035535A 2018-03-28 2018-03-28 disposable safety syringe KR102165159B1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001161817A (en) 1999-10-15 2001-06-19 Becton Dickinson & Co Retracting needle syringe
JP2005511256A (en) 2000-01-26 2005-04-28 テクネディル エッセ．エルレ．エルレ． Disposable safety syringe
JP2013510596A (en) 2009-11-11 2013-03-28 ユニトラクト シリンジ プロプライエタリイ リミテッド Medical syringe

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0177104B1 (en) * 1995-06-20 1999-05-15 김광호 Function key of monitor
KR200491264Y1 (en) * 2017-10-26 2020-03-11 (주)신아메드 safety syringe

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001161817A (en) 1999-10-15 2001-06-19 Becton Dickinson & Co Retracting needle syringe
JP2005511256A (en) 2000-01-26 2005-04-28 テクネディル エッセ．エルレ．エルレ． Disposable safety syringe
JP2013510596A (en) 2009-11-11 2013-03-28 ユニトラクト シリンジ プロプライエタリイ リミテッド Medical syringe

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