WO2020085588A1 - Robinet d'arrêt - Google Patents

Robinet d'arrêt Download PDF

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Publication number
WO2020085588A1
WO2020085588A1 PCT/KR2019/003153 KR2019003153W WO2020085588A1 WO 2020085588 A1 WO2020085588 A1 WO 2020085588A1 KR 2019003153 W KR2019003153 W KR 2019003153W WO 2020085588 A1 WO2020085588 A1 WO 2020085588A1
Authority
WO
WIPO (PCT)
Prior art keywords
drug
main body
stopcock
passage
injection pipe
Prior art date
Application number
PCT/KR2019/003153
Other languages
English (en)
Korean (ko)
Inventor
김연주
Original Assignee
김연주
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 김연주 filed Critical 김연주
Publication of WO2020085588A1 publication Critical patent/WO2020085588A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02—Access sites
    • 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
    • A61M39/20—Closure caps or plugs for connectors or open ends of tubes
    • 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
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/22—Valves or arrangement of valves
    • A61M39/24—Check- or non-return valves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02—Access sites
    • A61M39/0247—Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body
    • A61M2039/027—Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body having a particular valve, seal or septum
    • 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
    • A61M39/02—Access sites
    • A61M39/0247—Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body
    • A61M2039/0276—Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body for introducing or removing fluids into or out of the body
    • 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
    • A61M39/02—Access sites
    • A61M39/0247—Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body
    • A61M2039/0288—Semi-permanent or permanent transcutaneous or percutaneous access sites to the inside of the body protectors, caps or covers therefor
    • 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
    • A61M2039/229—Stopcocks
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/22—Valves or arrangement of valves
    • A61M39/24—Check- or non-return valves
    • A61M2039/2433—Valve comprising a resilient or deformable element, e.g. flap valve, deformable disc

Definitions

  • the disclosure disclosed herein relates to a stopcock, and more particularly, to a stopcock connected to blood transfusion vessels to control the movement of drugs.
  • Medications including physiological saline, potions, and chemicals prescribed to the patient, are supplied to the patient's body through the blood vessels, and a stopcock is connected to the blood vessels to control the movement of various types of drugs.
  • the valve to be formed When controlling the movement of the drug through the existing 3-way stopcock, the valve to be formed is rotated to open the passage for injecting the drug or the passage for blocking the injection of the drug is blocked.
  • Korean Patent Publication No. 10-0901729 discloses a medical stopcock and valve unit
  • Korean Patent Publication No. 10-1404488 discloses a medical functional multi-directional stopcock.
  • the existing inventions do not disclose a technique for minimizing or preventing contamination through actuation of a valve.
  • the stopcock is formed in the form of a passage connecting the chemical injection pipe and the supply pipe and one end is coupled to one side of the main body between the chemical injection pipe and the supply pipe, the other end of the main body It extends toward the inside and includes a reverse flow prevention portion formed to block each other between the chemical injection pipe and the main body, and the other end of the reverse flow prevention portion is bent toward the inside of the main body when the drug is injected through the chemical injection pipe. It is formed to guide the movement of, and elastically move to the original position when the injection of the drug is stopped.
  • the backflow prevention portion is formed in a cylinder shape at one end, a portion of the edge of one end is in close contact with the inner surface of the main body and extends in a plate shape toward the bottom, and the other end has a groove recessed toward the chemical injection pipe It can be formed.
  • the main body is coupled to the outside of the main body at a position spaced apart from the backflow prevention part between the chemical injection pipe and the supply pipe, and the other end extends in the form of a tube toward the outside to connect the inside and outside of the main body. It may further include an injection tube.
  • stopcock is coupled to be detachable or attachable to the other end of the drug injection tube in the form of a tube, and the other end extends toward a direction away from the main body to form a drug injection part formed to seal the drug injection tube It may further include.
  • the drug injection part is formed in a tube form one end surrounds the drug injection tube and the other end is formed to extend and contract toward the direction away from the main body and one end is inserted into the other end of the housing, the other end It may include a cap extending and extending from the edge of the body toward the main body, in close contact with the inner surface of the drug injection tube, and having a hollow on the side surface.
  • the stopcock has an advantage of preventing the drug from being automatically injected without additional manipulation, and different types of drugs injected from different directions to move to the drug injection port formed at different locations.
  • stopcock's backflow prevention portion is formed to be detachable or attachable, and is formed in an easy-to-form shape, and is made of a polymer material, thereby reducing manufacturing costs and having easy maintenance.
  • FIG. 1 and 2 are perspective views showing a stopcock according to an embodiment of the content disclosed herein.
  • Figure 3 is an exploded perspective view of the stopcock of Figure 1;
  • FIG. 4 is a cross-sectional view of the stopcock of FIG. 2 taken along I-I '.
  • FIG. 5 is a cross-sectional view of the stopcock of FIG. 2 taken along line II-II '.
  • FIG. 6 is a perspective view showing a stopcock according to another embodiment of the content disclosed in the present specification.
  • FIG. 1 and 2 show perspective views showing a stopcock according to an embodiment of the content disclosed herein.
  • FIG. 3 shows an exploded perspective view of the stopcock of FIG. 1.
  • the stopcock 100 includes a main body 200, a backflow prevention part 400 and a drug injection part 600.
  • the stopcock 100 controls the movement of drugs, including physiological saline, potions, and chemicals, which are prescribed to the patient, and can simultaneously administer various types of drugs, effectively refluxing various types of drugs without additional manipulation. prevent.
  • the main body 200 includes a chemical liquid injection pipe 220, a supply pipe 240, and a drug injection pipe 260.
  • the main body 200 is formed in a cylindrical shape with a space formed therein, and a passage 10 connecting the chemical injection pipe 220 and the supply pipe 240 coupled to the outer surface of the main body 200 is formed therein. do.
  • One end of the chemical injection pipe 220 is coupled to the main body 200 surrounding the injection port connected to the passage through the main body 200 at a position corresponding to the front of the main body 200, and the other end is in the form of a pipe It extends forward of the 200 and the main body 200.
  • One end of the supply pipe 240 passes through the main body 200 at a position corresponding to the rear of the main body 200 and surrounds the rear injection port connected to the passage, and is coupled with the main body 200, and the other end is in the form of a pipe ( 200).
  • a tube 245 surrounding the inner space in a cylindrical shape is disposed inside the supply pipe 240 to discharge the drug flowing into the passage 10 to the outside through the inner space of the supply pipe 240.
  • One end of the drug injection pipe 260 is coupled to the outer surface of the main body 200 at a position spaced apart from the backflow prevention part 400 between the chemical injection pipe 220 and the supply pipe 240, and the other end is the main body 200 It extends in the form of a tube toward one side of the body 200 is formed to connect the passage 10 inside and the outside.
  • the backflow prevention part 400 includes a cap 420 and a blocking film 440.
  • the backflow prevention unit 400 is coupled to one side of the main body 200 at a position corresponding between the chemical injection pipe 220 and the supply pipe 240, and the other end penetrates the main body 200 and the main body 200 It extends toward the inside of the chemical injection pipe 220 and the body 200 is formed to block each other.
  • One end of the cap 420 is formed in the form of a circular plate, and the other end is formed so as to extend a predetermined distance toward the lower portion of the circular center except for a part of the edge of the one end, and is inserted into the upper portion of the main body 200 to the passage (10) is cut off from the outside.
  • the user injects the drug desired by the user into the passage 10 inside the main body 200 by penetrating the cap 420 through the needle of the syringe. can do.
  • One end of the blocking film 440 is in close contact with a portion of the edge of the other end of the cap 420 at a position corresponding to the front of the cap 420, and the other end extends downward while maintaining a convex shape in a semicircle shape toward the front.
  • the back surface of the blocking film 440 is formed in a flat surface, and a part of the rear surface of the other end of the blocking film 440 is recessed by a predetermined distance toward the front to form a groove 450 behind the other end of the blocking film 440.
  • the front surface of the blocking film 440 is in close contact with the inner surface of the main body 200 corresponding to a position where one end of the chemical injection pipe 220 is connected inside the passage 10 or a predetermined distance from the inner surface of the main body 200 It is arranged to be spaced apart as much as it blocks the passage 12 inside the chemical injection pipe 220 and the passage 10 inside the main body 200.
  • the other end of the blocking film 440 is in close contact with the stepped jaw formed by extending a portion of the inner surface of the main body 200 located in the passage 10 toward the inside of the passage 10 in a cylindrical shape.
  • the other end of the blocking film 440 is separated from the stepped by the pressure of the drug to move from the passage 12 to the passage 10 while the other end is in close contact with the stepped.
  • the blocking film 440 is made of an elastic polymer or natural material, and when the drug moves toward the passage 10 through the chemical injection pipe 220 in a state in which the front surface is in close contact with the inner surface of the main body 200, the drug The blocking film 440 is bent toward the passage 10 under the pressure of to form a space for the drug to move between the passage 10 and the passage 12.
  • the blocking film 440 elastically moves to the original position to be in close contact with the inner surface of the main body 200, and the passage 10 and the passage 12 are separated from each other.
  • the drug flowing into the passage 10 through the supply pipe 240 or the drug injection part 600 is the passage 12 by the other end of the blocking film 440 corresponding to the inside of the blocking film 440 and the groove 450 Backflow movement is prevented.
  • the drug flowing into the groove 450 formed at the other end of the blocking membrane 440 compresses the blocking membrane 440 in the process of flowing into the groove 450 to improve the sealing force between the blocking membrane 440 and the inner surface of the main body 200 do.
  • FIG. 4 shows a cross-sectional view of the stopcock of FIG. 2 taken along I-I '.
  • the drug injection unit 600 includes a housing 620 and a cap 640.
  • One end of the drug injection unit 600 is coupled to be detachable or attached to the other end of the drug injection tube 260 in the form of a tube, the other end is extended in a direction away from the main body 200, the drug injection tube 260 It is formed to seal.
  • One end of the housing 620 is formed in a tube shape and surrounds a portion of the other end of the drug injection tube 260 and is in close contact with the drug injection tube 260, the other end forms a curved surface and is spaced apart from the main body 200 It is reduced and extended, and then again cylindrically.
  • a thread is formed on the outer surface of the other end of the housing 620 to be firmly connected through a drug bottle and a tube and a connector disposed outside, and a passage 14 passing through the housing 620 is formed inside.
  • One end of the cap 640 is formed in a cylindrical shape is inserted into the other end of the housing 620 inside the passage 14, the other end of the cap 640 is extended from the edge of one end toward the other end of the housing 620 It is extended obliquely and is disposed inside the drug injection tube 260.
  • each of the plurality of hollows 20 and 21 connecting the passage 13 and the passage 14 is formed to face each other, and one end of the cap 640 is provided with the passage 10 and the passage ( 12) is located on the same horizontal line as the connecting pipe 11 passing through the drug injection pipe 260 therebetween.
  • the drug that is injected through the one end of the cap 640 and passing through the passage 13 through the connecting tube 11 into the passage 10 moves to the supply tube 240 after passing through the passage 10, and the connecting tube ( Drug flowing back into the passages (12, 13, 14) through 11) moves between the one end of the housing 620 and the other end of the cap 640 through the hollow 20 to flow back through the cap 640 to the outside Things are prevented.
  • FIG. 5 shows a cross-sectional view of the stopcock of FIG. 2 taken along II-II '.
  • the blocking film 440 is injected with the second drug By pressure, it is in close contact with the inner surface of the body 200 or covers the inner surface of the body 200 and blocks the passage 10 and the passage 12 to block the backflow of the second drug.
  • the blocking film 440 is in close contact with the inner surface of the main body 200 or covers the passage 12, and between the passage 10 and the passage 12, the elastic restoring force of the blocking film 440 and the third drug It is blocked by injection pressure.
  • the stopcock 100 is automatically injected from different locations of the body 200 without any special manipulation in the process of continuously injecting the drug moving from the chemical injection tube 220 to the body 200 It effectively prevents backflow into the chemical injection pipe (220).
  • stopcock 100 automatically prevents the reflux of the drug toward the chemical injection pipe 220 while the chemical injection pipe 220, the reverse flow prevention unit 400, and the drug injection unit 600 each in three directions.
  • FIG. 6 illustrates a perspective view of a stopcock according to another embodiment of the content disclosed herein.
  • the stopcock 120 according to the present embodiment is substantially the same as the stopcock 100 of FIGS. 1 to 5 except for the backflow prevention unit 500, so that the same reference number and name are used and duplicate description is omitted. do.
  • the stopcock 120 includes a backflow prevention unit 500.
  • the stopcock 120 may adjust the inflow rate or the inflow rate of the drug flowing into the passage 10 through the backflow prevention part 500 from the chemical injection pipe 220 through rotation of a portion of the backflow prevention part 500. .
  • the backflow prevention unit 500 includes a cap 520, a blocking film 540, a valve 550, and a reinforcing film 560.
  • One end of the backflow prevention unit 500 is coupled to one side of the main body 200 between the chemical injection pipe 220 and the supply pipe 240, the other end is extended toward the interior of the main body 200, the chemical injection pipe 220 ) And the main body 200.
  • a portion of the backflow prevention part 500 is coupled to be pivotable at the center of one end of the backflow prevention part 500 so that the inflow rate or the inflow rate of the drug moving from the chemical injection pipe 220 to the passage 10 according to the rotation It is adjustable.
  • One end of the cap 520 is formed in a ring shape and inserted into the upper end of the main body 200, in close contact with the inner surface of the main body 200, and the other end extends downward along the inner surface of the main body 200 and the other end
  • the outer surface is recessed toward the inside of the cap 520 to surround the cap 520 and a groove having a semi-circular cross section is formed.
  • a ring-shaped protrusion formed on the top of the body 200 is inserted to improve the bonding force between the cap 520 and the body 200, and drugs introduced into the passage 10 are introduced. It is prevented from flowing out through the cap 520.
  • One end of the blocking film 540 is coupled to a portion of the edge corresponding to the front of the cap 520, the other end is in close contact with the inner surface of the main body 200, and extends in the form of a plate toward the bottom to provide a passage 10 and a passage ( 12) Cut off between.
  • the blocking film 540 is bent toward the rear side of both sides so that the central portion and both sides of the front side are in close contact with the inner surface of the main body 200 at the location where the passage 10 and the passage 12 are connected to the passage 10 and the passage (12) Cut off between.
  • One end of the valve 550 is formed in a cylindrical shape and is coupled to enable rotation along the inner surface of the cap 520, and the other end extends outward along the bottom surface of the other end of the cap 520 from the lower end of the other end of the cap 520 It is in close contact with the bottom surface of the cap 520.
  • One end of the reinforcing film 560 is coupled to a portion of the bottom edge of the other end of the valve 550, and the other end is extended in the form of a triangular plate with one side formed relatively long toward the bottom to be in close contact with the back surface of the blocking film 540.
  • Reinforcing film 560 is deformed of the blocking film 540 due to the pressure of the drug applied to the front surface of the blocking film 540, both sides are bent toward the rear, the central portion of the front and both sides are in close contact with the back of the blocking film 540 Control the degree.
  • the user can adjust the front edge of the reinforcing film 560 to be in close contact with the rear surface of the blocking film 540 by matching both edges of the reinforcing film 560 through rotation of the valve 550 to both edges of the blocking film 540.
  • the blocking film 540 is bent, and a portion that can connect between the passage 12 and the passage 10 has a relatively low area, so that the drug The speed or amount flowing into the passage 10 is reduced.
  • the reinforcing film 560 Conversely, by moving one side of the reinforcing film 560 that extends relatively downwardly through the rotation of the valve 550 toward one side of the reinforcing film 560, the reinforcing film 560 is in close contact with the blocking film 540.
  • the area in which the blocking film 540 can be bent increases, thereby increasing an inflow rate or an inflow rate of the drug flowing into the passage 10.
  • the stopcock 120 controls the area in which the blocking film 540 can be bent according to the rotational direction of the valve 550, so that the inflow rate of the drug moving from the chemical injection pipe 220 to the interior of the body 200 or Inflow volume can be conveniently controlled.
  • a stopcock is a device that is connected to blood transfusion vessels to control the movement of drugs, and can be used for medical purposes.

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  • Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (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)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

L'invention concerne un robinet d'arrêt monté sur un corps, qui assure l'injection automatique d'un médicament, et empêche le reflux du médicament injecté depuis une autre direction. Selon un mode de réalisation de l'invention, le robinet d'arrêt comprend : un corps principal qui se présente sous la forme d'un passage reliant un tuyau d'injection de médicament et un tuyau d'alimentation; et un module antiretour dont une extrémité est couplée à un côté du corps principal entre le tuyau d'injection de médicament et le tuyau d'alimentation, l'autre extrémité s'étendant vers l'intérieur du corps principal et conçue pour bloquer le tuyau d'injection de médicament et le corps principal l'un par rapport à l'autre. L'autre extrémité du module antiretour est conçue pour se courber vers l'intérieur du corps principal lorsque le médicament est injecté par le tuyau d'injection de médicament pour ainsi guider la circulation du médicament, et pour revenir en souplesse à sa position initiale lorsque l'injection du médicament est interrompue.
PCT/KR2019/003153 2018-10-24 2019-03-19 Robinet d'arrêt WO2020085588A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020180127468A KR102247794B1 (ko) 2018-10-24 2018-10-24 스톱콕
KR10-2018-0127468 2018-10-24

Publications (1)

Publication Number Publication Date
WO2020085588A1 true WO2020085588A1 (fr) 2020-04-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2019/003153 WO2020085588A1 (fr) 2018-10-24 2019-03-19 Robinet d'arrêt

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KR (1) KR102247794B1 (fr)
WO (1) WO2020085588A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5348542A (en) * 1993-05-05 1994-09-20 Joseph P. Padula Holder for percutaneously introduced tubes
US20080086093A1 (en) * 2006-09-18 2008-04-10 Steppe Dennis L Automatic stop cock valve
JP2008528230A (ja) * 2005-02-01 2008-07-31 アイシーユー メディカル インコーポレイテッド 医療用ｙサイトのための逆止め弁
KR101122531B1 (ko) * 2009-04-13 2012-03-15 (주)이화프레지니우스카비 약물 충전 및 흐름제어장치 그리고 이를 구비한 약물주입장치
KR101903682B1 (ko) * 2017-01-06 2018-10-05 (주)엠큐어 가스 및 약물주입장치

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007143813A (ja) 2005-11-28 2007-06-14 Nippon Sherwood Medical Industries Ltd 医療用活栓
KR101404488B1 (ko) 2013-02-22 2014-06-17 장근수 의료용 기능성 다방향 스톱콕

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5348542A (en) * 1993-05-05 1994-09-20 Joseph P. Padula Holder for percutaneously introduced tubes
JP2008528230A (ja) * 2005-02-01 2008-07-31 アイシーユー メディカル インコーポレイテッド 医療用ｙサイトのための逆止め弁
US20080086093A1 (en) * 2006-09-18 2008-04-10 Steppe Dennis L Automatic stop cock valve
KR101122531B1 (ko) * 2009-04-13 2012-03-15 (주)이화프레지니우스카비 약물 충전 및 흐름제어장치 그리고 이를 구비한 약물주입장치
KR101903682B1 (ko) * 2017-01-06 2018-10-05 (주)엠큐어 가스 및 약물주입장치

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KR102247794B1 (ko) 2021-05-04
KR20200046386A (ko) 2020-05-07

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