WO2019199060A1 - Ensemble de filtre pour seringue et seringue comportant celui-ci - Google Patents

Ensemble de filtre pour seringue et seringue comportant celui-ci Download PDF

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Publication number
WO2019199060A1
WO2019199060A1 PCT/KR2019/004291 KR2019004291W WO2019199060A1 WO 2019199060 A1 WO2019199060 A1 WO 2019199060A1 KR 2019004291 W KR2019004291 W KR 2019004291W WO 2019199060 A1 WO2019199060 A1 WO 2019199060A1
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WO
WIPO (PCT)
Prior art keywords
chemical liquid
syringe
filter assembly
filter
valve member
Prior art date
Application number
PCT/KR2019/004291
Other languages
English (en)
Korean (ko)
Inventor
김종윤
Original Assignee
주식회사 이수테크
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 주식회사 이수테크 filed Critical 주식회사 이수테크
Priority to KR1020207028920A priority Critical patent/KR20200125726A/ko
Publication of WO2019199060A1 publication Critical patent/WO2019199060A1/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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/3145—Filters incorporated in syringes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
    • A61M5/344—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub using additional parts, e.g. clamping rings or collets
    • A61M5/345—Adaptors positioned between needle hub and syringe nozzle
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M2005/3128—Incorporating one-way valves, e.g. pressure-relief or non-return valves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/75—General characteristics of the apparatus with filters
    • A61M2205/7545—General characteristics of the apparatus with filters for solid matter, e.g. microaggregates

Definitions

  • the present invention relates to a syringe, and more particularly, to a filter assembly for a syringe for removing foreign substances in a chemical liquid and a syringe having the same.
  • the drug solution to be administered to the patient is distributed in ampoules made of glass or vials packed with glass vials.
  • the chemical solution in the ampoule or vial is administered to the patient by using a syringe. Glass fragments generated by opening the ampoule or rubber fragments generated from the rubber stopper of the vial are introduced into the syringe during the suction of the chemical solution into the syringe.
  • the glass fragments or rubber fragments introduced into the syringe may be administered to the patient together with the drug solution to cause complications.
  • intravenous administration may cause phlebitis, or in the case of spinal cord injection, may cause necrosis of body tissues. May be severe and develop cancer.
  • a filter body is attached to the tip of a cylinder of a syringe body to provide a chemical solution.
  • a filter body is attached to the tip of a cylinder of a syringe body to provide a chemical solution.
  • Korean Patent No. 10-1723820 discloses a filter structure which is configured on one side of a syringe body cylinder to catch foreign substances contained in the injection liquid, but in this case, the filter structure is formed inside the cylinder and is disposable.
  • the bar has to be manufactured in accordance with various cylinder sizes of the syringe, there is a problem that the general purpose and the manufacturing cost increases.
  • An object of the present invention in order to solve the above problems, to provide a filter assembly for a syringe for removing foreign substances in the chemical liquid and a syringe having the same.
  • the present invention was created in order to achieve the object of the present invention as described above, the present invention is mounted between the neck (3) of the needle 5 and the syringe cylinder (2) for fixing the needle (4)
  • an impregnation connecting portion 110 to which the needle 5 is coupled is formed at one end, and the neck portion 3 of the cylinder 2 is formed at the other end.
  • a discharge opening 311 through which the chemical liquid is discharged from the cylinder 2 is formed at one end thereof, and an outer circumferential surface of the suction passage 301 in which the chemical liquid is sucked through the infiltration connector 110 together with the inner circumferential surface of the housing 100.
  • a first valve member (300) formed to block the discharge of the chemical liquid through the suction passage (301) when the chemical liquid from the cylinder (2) is discharged through the discharge opening (311);
  • a filter 200 inserted into the other end of the first valve member 300 to filter foreign substances from the chemical liquid when the chemical liquid is discharged through the discharge opening 311; It is installed to be movable in the longitudinal direction in the housing 100, by opening and closing the discharge opening 311 through the movement according to the pressure of the chemical liquid, the discharge opening 311 when the chemical liquid is sucked through the suction flow path 301
  • a filter assembly for a syringe characterized in that it comprises a second valve member (400) for blocking the suction of the chemical through.
  • the housing 100 includes a housing body 120 extended to the needle connecting portion 110 to have a step 121 to extend in the radial direction of the needle connecting portion 110, the needle connecting portion 110 ), Is inserted into the acupuncture (5), a hollow 111 through which the chemical solution in the longitudinal direction may be formed.
  • the first valve member 300, the main body 310, the discharge opening 311 is formed, and is formed to extend inclined toward the neck portion 3 from the main body 310, when the chemical liquid discharged
  • it may include a wing 320 to block the suction flow path 301 to prevent the discharge of the chemical liquid.
  • the main body 310 is formed so that the filter insertion hole 312 is extended from the discharge opening 311 with a step so that the filter 200 is inserted, the filter 200, the filter insertion It is inserted into the hole 312, it is possible to filter the foreign matter when the chemical liquid discharged.
  • the second valve member 400 has a protrusion 410 which is installed to correspond to the hollow 111 so as to be movable along the hollow 111, and extends in a radial direction from the protrusion 410. It may include a contact portion 420 having a larger diameter than the discharge opening 310 to open and close the discharge opening 311 according to the movement of the protrusion 410 according to the pressure of the chemical liquid.
  • the hollow 111, the diameter of the side of the needle 5 is tapered shape smaller than the diameter of the housing body 120 side, the protrusion 410 is spaced apart from the inner surface of the needle connecting portion 110, It may have a tapered shape corresponding to the hollow 111.
  • D 2 / D 1 may be 0.169 or more and less than 1.000.
  • the length of the protrusion 410 may be 0.294 or more and 1.177 or less.
  • D 2 / D 3 may be 0.144 or more and less than 1.000.
  • D 1 / D 3 may be 0.269 or more and less than 1.000.
  • the housing body 120 may have a flow path groove 122 formed in the step 121 to form a flow path through which the chemical liquid is discharged when the step 121 and the second valve member 400 contact each other. have.
  • the second valve member 400 may be connected to the step 121 of the main body 420 to form a flow path through which the chemical liquid is discharged even when the step 121 is in contact with the second valve member 400.
  • One or more protrusions may be formed on the contact surface.
  • the housing 100 has one end coupled to the housing body 120 so that the housing 100 is positioned between the needle 5 and the neck 3, and the other end of the housing 100 is connected to the neck 3.
  • the adapter 500 may be further included.
  • the adapter 500 may be connected to the adapter 500 to form at least one opening 510 for the passage of the chemical liquid, and a flow path 523 connected to the opening 510 from the suction passage 301.
  • the filter 200 may include one or more protrusion contact parts 520 protruding from and contacting the filter 200 so as to be spaced apart from each other.
  • the adapter 500 may include an extension protrusion 530 inserted into the neck part 3 in order to minimize the remaining chemical solution of the neck part 3.
  • Acupuncture (5) for fixing the needle (4) to be inserted into the drug solution subject A cylinder (2) in which the chemical liquid is accommodated by using a pressure difference through the movement of the rod (6) to which the intake (7) is coupled to one end; Disclosed is a syringe assembly characterized in that the filter assembly for a syringe according to any one of claims 1 to 13 is mounted between the needle 5 and the cylinder 2.
  • the intake 7 in the cylinder 2 protrudes in the longitudinal direction of the cylinder 2,
  • moving forward may include a chemical removal unit inserted into the neck (3).
  • the filter assembly for a syringe according to the present invention and a syringe having the same can prevent diseases such as sepsis, tissue necrosis, phlebitis, and blood clots due to the incorporation of human body such as glass powder by filtering foreign substances contained in the drug solution administered to the human body. There is an advantage to that.
  • the filter assembly for a syringe according to the present invention and a syringe having the same can be used as such without the need to replace the needle in the process of inhaling the drug solution into the syringe, and in the process of administering the drug solution sucked into the human body Bar, there is an advantage that the convenience of use of the medical staff is increased.
  • the syringe filter assembly and the syringe having the same according to the present invention is formed to be mounted corresponding to the size and shape of the tip mounting portion of the standardized syringe tip and the needle, can be used in a variety of disposable syringes and low production cost There is an advantage.
  • the syringe filter assembly and the syringe having the same according to the present invention because the size of the filter is inserted into the syringe, or larger than the filter configured in the acupuncture, there is an advantage that the administration of the drug solution with a low pressure.
  • the syringe filter assembly and the syringe having the same according to the present invention can minimize the amount of residual drug that can remain at the tip of the syringe according to an embodiment of the medical care, such as infants need precise dosage control There is an advantage to enhance the effect.
  • the syringe filter assembly and the syringe having the same according to the present invention by being installed inside the syringe cylinder, there is an advantage that can be filtered without the additional combined use of a separate assembly module.
  • FIG. 1 is a perspective view showing a syringe equipped with a filter assembly for a syringe according to the present invention.
  • FIG. 2 is an exploded perspective view showing the combined arrangement of the syringe to which the filter assembly for syringe of FIG. 1 is mounted;
  • FIG. 3 is an exploded perspective view illustrating a coupling arrangement of the filter assembly of FIG. 2.
  • FIG. 4 is a cross-sectional view along the A-A direction showing the inside of the filter assembly of FIG.
  • FIG. 5 is a cross-sectional view in the B-B direction showing the internal view of another angle of the filter assembly of FIG. 2.
  • FIG. 6A to 6B are enlarged cross-sectional views illustrating an operation of the filter assembly of FIG. 2, and FIG. 6A is an enlarged cross-sectional view showing an operation of the filter assembly when the chemical liquid is inhaled.
  • FIG. 6B is an operation of the filter assembly when the chemical liquid is discharged. It is an enlarged section showing the appearance.
  • FIG. 7 is a cross-sectional view taken along the C-C direction showing the inside of the housing of the filter assembly of FIG. 4.
  • FIG. 8 is a perspective view showing another embodiment of the adapter of the filter assembly of FIG.
  • FIG. 9 is an exploded perspective view showing a coupling arrangement of the adapter of FIG. 8 with a syringe;
  • FIG. 10 is a cross-sectional view showing the adapter of FIG. 8 coupled with a syringe.
  • FIG. 11 is an exploded perspective view showing another embodiment of a filter assembly for a syringe according to the present invention.
  • 12A and 12B are cross-sectional views illustrating an in-cylinder installation when chemical liquid is sucked from the outside of the filter assembly of FIG. 11.
  • FIG. 13A and 13B are cross-sectional views showing the installation in a cylinder when the chemical liquid of the filter assembly of FIG. 11 is discharged.
  • a syringe having a filter assembly for a syringe according to the present invention as shown in Figures 1 and 2, the needle 5 for fixing the needle (4) to be inserted into the drug administration subject;
  • a syringe having a filter assembly for a syringe according to the present invention is a sterile product which is used for single use as a constitution for administering a medicinal liquid to a human body, and is configured to administer the inhaled medicinal liquid to a human body after inhaling the medicinal liquid into the syringe.
  • the acupuncture (5) is a configuration for fixing the injection needle (4) which penetrates into the body of the medicine liquid administration subject and serves as a passage for supplying the medicine liquid to the administration subject, and various configurations are possible.
  • the immersion 5 is a configuration in which one end of the filter assembly to be described later is mounted.
  • a mounting hole may be formed so that the filter assembly can be stably inserted.
  • the mounting hole may have a shape corresponding to the needle connector 110 of the filter assembly, and may serve as a channel of the chemical liquid so that the chemical liquid sucked or discharged through the needle connector 110 may pass.
  • the cylinder 2 has a suction rod 7 for receiving and discharging the chemical liquid, and a pusher 6 for transmitting the force necessary for advancing and retracting the suction liquid 7 to prevent the chemical liquid from leaking.
  • a suction rod 7 for receiving and discharging the chemical liquid
  • a pusher 6 for transmitting the force necessary for advancing and retracting the suction liquid 7 to prevent the chemical liquid from leaking.
  • the neck portion 3 is formed to extend to the side of the needle 5 of the cylinder 2, coupled with the needle 5, or can be various configurations as a configuration for mounting the filter assembly described later.
  • the syringe having a filter assembly for a syringe according to the present invention in order to minimize the remaining chemical liquid in the cylinder (2) and neck portion (3), it may include a chemical liquid removal portion inserted into the neck portion 3 when moving forward.
  • the chemical liquid removing part is formed to protrude on the intake 7 and occupies a volume in the space in the neck part 3, thereby minimizing the remaining chemical liquid remaining in the neck part 3.
  • a syringe having a filter assembly for a syringe according to the present invention the filter assembly for filtering the foreign matter in the chemical solution when the drug solution is discharged to be administered between the acupuncture (5) and the cylinder (2) for administration to the subject It can be mounted, it will be described in detail with reference to the accompanying drawings for the filter assembly for a syringe.
  • the filter assembly for a syringe is mounted between the needle 5 and the neck portion 3 of the syringe cylinder (2) for fixing the needle (4),
  • a needle connecting portion 110 to which the needle 5 is coupled is formed at one end, and the neck portion 3 of the cylinder 2 is coupled to the other end.
  • a discharge opening 311 through which the chemical liquid is discharged from the cylinder 2 is formed at one end thereof, and an outer circumferential surface of the suction passage 301 in which the chemical liquid is sucked through the infiltration connector 110 together with the inner circumferential surface of the housing 100.
  • a first valve member (300) formed to block the discharge of the chemical liquid through the suction passage (301) when the chemical liquid from the cylinder (2) is discharged through the discharge opening (311);
  • a filter 200 inserted into the other end of the first valve member 300 to filter foreign substances from the chemical liquid when the chemical liquid is discharged through the discharge opening 311; It is installed to be movable in the longitudinal direction in the housing 100, by opening and closing the discharge opening 311 through the movement according to the pressure of the chemical liquid, the discharge opening 311 when the chemical liquid is sucked through the suction flow path 301 It characterized in that it comprises a second valve member 400 for blocking the suction of the chemical liquid through the).
  • the housing 100 is formed with a needle connecting portion 110 to which the needle 5 is coupled at one end, and the neck portion 3 of the cylinder 2 is coupled to the other end, and various configurations are possible. .
  • the housing 100 includes an internal space into which the first valve member 300, the second valve member 400, and the filter 200 are inserted, and the chemical liquid is sucked into the cylinder 2.
  • a flow path through which the chemical liquid flows can be formed.
  • the housing 100 may be a transparent material so that the inside is visible, and may be made of a material such as methyl methacrylate, acrylonitrile, butadiene, styrene copolymer.
  • the housing 100 has a needle connection connector 110 coupled to the needle needle 5 at one end thereof, and extends in a radial direction of the needle connection connector 110 to the step connector 110 so as to have a step 121. It may include an extended housing body 120.
  • the impregnation connector 110 is a configuration in which the needle 5 is fitted, and various configurations are possible.
  • the needle connecting portion 110 may be configured to extend from the housing body 120 to be protruded to be inserted into the needle set 5, and may further have a tapered shape.
  • the impregnated connector 110 is fitted to the needle 5, a hollow 111 through which the chemical liquid passes in the longitudinal direction may be formed, the hollow 111, the chemical liquid is sucked from the needle 5, It may be a space in which the chemical liquid is discharged from the cylinder 2.
  • the housing body 120 is extended in the radial direction of the immersion connector 110, extending to the immersion connector 110 to have a step 121, various configurations are possible.
  • the housing body 120 as a configuration having an internal space, the first valve member 300, the second valve member 400 and the filter 200 may be inserted into the interior space, the chemical liquid cylinder (2)
  • the suction passage 301 sucked into the) and the discharge passage through which the chemical liquid is discharged to the outside of the cylinder 2 may be formed, respectively.
  • the housing body 120 is formed to extend with the step 121 from the impregnated connection portion 110, in order to maintain a stable flow of the chemical liquid on the inner circumferential surface, the movement in the longitudinal direction of the first valve member 300 to be described later
  • the locking portion 125 for preventing the protrusion may be formed.
  • the housing body 120, the first valve member 300 is a cylinder (corresponding to the wing portion 320, which will be described later, so as to easily block the discharge of the chemical liquid through the suction passage 301 through the flow of the chemical liquid ( 2)
  • a groove 124 may be formed between the inclined portion 123 having a radius extending toward the side, and a smooth flow of the chemical liquid between the housing body 120 and the impregnated connection portion 110.
  • the housing main body 120 may have a flow path groove 122 formed in the step 121 in order to form a flow path through which the chemical liquid is discharged when the step 121 and the second valve member 400 contact each other. have.
  • the step 121 is a configuration in which the housing main body 120 extends in the radial direction from the immersion connecting portion 110 and is formed to extend.
  • the second valve member 400 is hollow 111 through the flow of the chemical liquid. It may be a variety of configurations, such as not to be discharged together, to be located inside the housing body 120.
  • the second valve member 400 when the step 121 is discharged through the hollow 111 of the infiltration connector 110 of the chemical liquid, the second valve member 400 is not discharged together to the hollow 111 at the pressure of the chemical liquid discharged. It may be formed so that a part of the second valve member 400 is caught.
  • a flow path groove 122 may be formed in the step 121 to form a flow path through which the chemical liquid is discharged even when the step 121 and the second valve member 400 contact each other.
  • the flow path groove 122 is formed to have a depth in at least a portion of the step 121, thereby connecting the suction channel 301 and the hollow 111 of the infiltration connector 110 to each other.
  • various configurations are possible.
  • the flow path groove 122 is more preferably formed symmetrically with respect to the central axis in the longitudinal direction of the housing 100, it may be formed as a smooth discharge passage of the chemical liquid.
  • the inclined portion 123 has an inner circumferential surface of the housing body 120 toward the cylinder 2 side so that the first valve member 300 easily blocks the discharge of the chemical liquid through the suction passage 301 through the flow of the chemical liquid.
  • the inclined portion 123 is configured to block the suction flow path 301 of the first valve member 300 so as to correspond to the inclination of the wing portion 320, and the pressure of the chemical liquid discharged is When acting on the wing 320, the suction channel 301 may be easily blocked by a small inclination deformation of the wing 320, so that the surface in contact with the wing 320 may be increased.
  • the inclined portion 123 is formed in parallel with the wing portion 320, the inclined portion 123 is formed in the deformation of the wing portion 320 to the impregnated connecting portion 110 side according to the discharge of the chemical liquid.
  • the wing 320 may contact the inner circumferential surface of the housing body 120 in a large area to more completely block the suction flow path 301.
  • the groove 124 is formed to extend from the hollow 111 to the housing body 120 side, it may be a variety of configurations to allow the chemical liquid to flow stably.
  • the locking portion 125 is configured to prevent movement of the first valve member 300 in the housing body 120, and various configurations are possible.
  • the engaging portion 125, the inner circumferential surface of the housing main body 120 to be caught and interfere with a portion of the first valve member 300 so that the first valve member 300 is not advanced to the infiltration connector 110 side Can be protruded to.
  • the housing 100 one end is coupled to the housing body 120, so that the other end is fitted to the neck portion 3 so that the adapter 500 is located between the needle 5 and the neck portion (3) It may further comprise.
  • the adapter 500 has one end coupled to the housing body 120 and the other end fitted to the neck portion 3 so that the housing 100 is mounted between the needle connector 110 and the neck portion 3.
  • various structures are possible.
  • the adapter 500 may be more preferably made of a transparent material in order to determine the state of injection of the chemical liquid.
  • the adapter 500 may include the adapter 500 and the filter 200 to form one or more openings 510 for the passage of the chemical liquid, and a flow path 523 connected from the suction passage 301 to the opening 510. ) May include one or more protruding contact portions 520 protruding from and contacting the filter 200 to be spaced apart from each other.
  • the adapter 500 may include an extension protrusion 530 inserted into the neck part 3 in order to minimize residual chemical solution of the neck part 3.
  • the adapter 500 in order to be coupled to the housing body 120, the coupling portion 540 and the neck portion 3 is formed to be extended in the radial direction, the neck portion (3) can be fitted and coupled, Insertion hole 550 corresponding to the outer shape of the may be formed.
  • the opening 510 is configured to allow the chemical liquid to pass through the cylinder 2 and the housing body 120, and various configurations are possible.
  • one or more openings 510 may be formed to extend from the insertion hole 550 so that the chemical liquid passing through the insertion hole 550 through which the neck portion 3 is fitted may be passed. May be formed to be symmetric with respect to the central axis of the adapter 500 for smooth flow of the chemical liquid.
  • the protruding contact portion 520 when the housing body 120 and the adapter 500 is coupled, when the first valve member 300 and the adapter 500 inserted into the housing body 120 are in close contact, suction There may be a problem that the suction of the chemical liquid through the flow path 301 is blocked, as a configuration for maintaining a predetermined distance between the adapter 500 and the first valve member 300, various configurations are possible.
  • the protrusion contact part 520 may contact the filter 200 to form a flow path 523.
  • the protruding contact portion 520 contacts the filter 200 inserted into the first valve member 400, thereby maintaining a space between the first valve member 400 and the adapter 500 so that the flow path 523 is closed. Is formed.
  • the flow path 523 connects the suction flow path 301 and the opening 510, and may constitute a part of the suction path of the chemical liquid.
  • the protruding contact portion 520 may include at least one first protruding contact portion 521 and a first protruding contact portion 521 to protrude to the housing body 120 of the adapter 500 so as to directly contact the filter 200. It may include a second protrusion contact portion 522 protruding between the openings 510, so that the chemical liquid flows smoothly into the openings 510.
  • the extension protrusion 530 is inserted into the neck portion 3 in order to minimize the residual chemical solution of the neck portion 3, and various configurations are possible.
  • the extension protrusion 530 is formed at the center of the insertion hole 550 of the adapter 500 to be inserted into the neck portion 3 when the neck portion 3 is coupled through the insertion hole 550 of the neck portion 3.
  • the extension protrusion 530 may have various configurations that occupy the volume of the internal space of the neck 3, for example, may occupy a part of the internal space of the neck 3, and further, the intake 7 It may be formed corresponding to the length of the neck portion 3 to be in contact with the intake 7 when the maximum advance of.
  • An extension protrusion 530 may be formed to correspond to the length of or may not include the extension protrusion 530.
  • the coupling part 540 may include one or more adhesion steps 541 and 542 protruding in a radial direction so as to correspond to the radial size of the inner circumferential surface of the housing body 120 in order to prevent leakage of the chemical liquid. have.
  • the coupling part 540 When the coupling part 540 is fitted to the housing main body 120 and is coupled to the housing main body 120, the coupling part 540 is formed to be in close contact with the end of the housing main body 120, so that the housing main body 120 and the adapter 500 are in close contact with each other so that no leakage of the chemical liquid occurs.
  • the configuration to be combined various configurations are possible.
  • the coupling part 540 is extended in the radial direction of the adapter 500, it may be in close contact with the end of the housing body 120 and coupled.
  • the insertion hole 550 is a configuration in which the neck portion 3 is inserted and the chemical liquid passes therethrough, and may correspond to the shape of the neck portion 3 and may be a tapered hole.
  • the first valve member 300 has a discharge opening 311 through which the chemical liquid is discharged from the cylinder 2 at one end thereof, and an outer circumferential surface thereof is formed with an inner circumferential surface of the housing 100. Together with the chemical liquid is formed through the inlet connection 110, the suction flow path 301 is formed, and when the chemical liquid from the cylinder 2 is discharged through the discharge opening 311 to discharge the liquid through the suction flow path 301 As a structure which cuts off, various structures are possible.
  • the first valve member 300 may be made of an elastic material, for example, made of a silicon material in order to block the suction flow path 301 at a pressure according to the flow of the chemical liquid.
  • the first valve member 300 is extended to the main body portion 310, the discharge opening 311 is formed, and the inclined toward the neck portion 3 side from the main body portion 310, the pressure of the chemical liquid during drug discharge
  • it may include a wing 320 to block the suction flow path 301 to prevent the discharge of the chemical liquid.
  • the suction passage 301 is formed in the longitudinal direction of the housing body 120 between the outer circumferential surface of the first valve member 300 and the inner circumferential surface of the housing body 120, so that the chemical liquid is hollow (111) of the infiltration connector 110. As a suction path from the), it may be more preferably symmetrical with respect to the central axis of the housing body 120.
  • the main body 310 is a configuration in which the discharge opening 311 for discharging the chemical liquid is formed at one end of the infiltration connector 110, various configurations are possible.
  • the main body 310 includes a filter insertion hole 312 which is formed with a step from the discharge opening 311 therein so that the filter 200 is inserted to filter foreign substances in the chemical liquid when the chemical liquid is discharged. can do.
  • the filter 200 is inserted into the filter insertion hole 312 to filter foreign substances in the chemical liquid during discharge of the chemical liquid, and may have various configurations.
  • the filter 200 has a size and shape corresponding to the filter insertion hole 312, and may have a cylindrical shape, and may be a filter of 5.0 ⁇ m high density polyethylene.
  • the wing portion 320 is formed to be inclined toward the neck portion 3 on the outer circumferential surface of the main body 310, and is in close contact with the inner surface of the housing 100 by the pressure of the chemical liquid during discharge of the chemical liquid, Blocking the 301 to prevent the discharge of the chemical liquid, various configurations are possible.
  • the wing 320 is made of a silicon material, has an elastic force, and closes the inner peripheral surface of the housing body 120 at a pressure according to the flow of the chemical liquid when discharged from the cylinder (2) of the chemical liquid It is extended in the radial direction so as to block the suction flow path 301, it is possible to prevent the discharge of the chemical liquid to the suction flow path (301).
  • the wing portion 320, the neck portion (3) side is formed to be inclined to expand the bar, when the suction of the chemical liquid to the cylinder (2), the wing portion 320 by the pressure according to the flow of the chemical liquid to the main body portion ( By folding in the direction of the outer circumferential surface of 310, the suction passage 301 can be opened, and suction of the chemical liquid into the suction passage 301 can be induced smoothly.
  • the wing 320 is extended in the radial direction of the main body 310, by forming a step on the inner circumferential surface of the housing body 120, when the suction of the chemical liquid, wing 320 Is folded to the outer peripheral surface side of the main body 310 to open the suction flow path 301, when the discharge of the chemical liquid, the wing 320 may be caught in the step can close the suction flow path (301).
  • the second valve member 400 is installed to be movable in the longitudinal direction in the housing 100, by opening and closing the discharge opening 311 through the movement according to the pressure of the chemical liquid, the chemical liquid through the suction flow path 301 As a configuration to block the suction of the chemical liquid through the discharge opening 311 when inhaled, various configurations are possible.
  • the second valve member 400 is installed to be movable in the longitudinal direction of the housing 100 between the step 121 and the first valve member 300, through the movement according to the pressure of the chemical liquid
  • the discharge opening 311 of the first valve member 300 may be opened and closed.
  • the second valve member 400 moves to the first valve member 300 side by the pressure corresponding to the suction of the chemical liquid to close the discharge opening 311, thereby discharging the opening. Inhalation of the chemical solution through 311 may be blocked.
  • the suction passage 301 is blocked by left and right vibrations or the like during the movement along the longitudinal direction of the housing body 120, or the discharge opening 311 is completely closed.
  • the inhalation of the chemical liquid may not be smooth, or the problem may be accompanied by the suction of the chemical liquid through the discharge opening 311.
  • the chemical liquid sucked through the discharge opening 311 is present between the discharge opening 311 and the hollow 111 through the filter 200, when the discharge of the chemical liquid, foreign matter with the flow of the chemical liquid There may be a problem entering into the body of the subject.
  • the protrusion 410 is installed to be movable along the hollow 111 corresponding to the hollow 111, and extends in the radial direction from the protrusion 410 It is extended and formed, and may have a larger diameter than the discharge opening 310 may include a close contact portion 420 for opening and closing the discharge opening 311 according to the movement of the protrusion 410 according to the pressure of the chemical liquid.
  • the protrusion 410 is configured to be movable along the hollow 111 in correspondence with the hollow 111, and is spaced apart from the inner surface of the hollow 111 to form a flow path through which the chemical liquid passes through the hollow 111. It can be a variety of configurations movable along.
  • the protrusion 410 is moved along the hollow 111 in correspondence with the hollow 111, thereby causing fine positional deviation such as oscillating left and right about the central axis of the housing body 120 of the second valve member 400. And precise positioning can be achieved.
  • the protrusion 410 corresponding to the hollow 111 having a tapered shape of the diameter of the needle 5 side is smaller than the diameter of the housing body 120 side, is spaced apart from the inner surface of the needle connector 110, It may be a tapered shape corresponding to the (111).
  • the protrusion 410 may have a length of 2.50 mm or more and 10.00 mm or less, and a diameter of 0.75 mm or more and 4.20 mm or less.
  • the close contact portion 420 extends in the radial direction from the protrusion 410 and extends, and has a diameter larger than that of the discharge opening 310 and discharges 311 according to the movement of the protrusion 410 according to the pressure of the chemical liquid.
  • various configurations are possible.
  • the close contact portion 420 has a diameter larger than that of the discharge opening 310, and has a diameter larger than that of the hollow 111, so that the close contact portion 420 is in close contact with the discharge opening 310 when the chemical liquid is inhaled.
  • a step 121 may be caught to prevent the second valve member 400 from passing through the hollow 111.
  • the close contact portion 420 may have a diameter of 1.50 mm or more and 5.20 mm or less.
  • the housing body 120, the flow path groove 122 may be formed in the step 121 to form a flow path for the chemical liquid is discharged when the step 121 and the second valve member 400 in contact. have.
  • the second valve member 400, the step of the body portion 420, in order to form a flow path through which the chemical liquid is discharged even in contact with the step 121 and the second valve member 400 One or more protrusions (not shown) may be formed on the contact surface with 121.
  • One or more protrusions are formed on the contact surface with the step 121 of the close contact part 420 to prevent the close contact part 420 from coming into close contact with the step 121 even at the maximum advance of the second valve member 400.
  • the protruding portion 410 may have a cylindrical shape in which the outer circumferential surface thereof is formed perpendicularly to the contact portion 420 in the longitudinal direction, and more preferably, the diameter of the contact portion 420 side is the diameter of the impregnation connection portion 110 side. It may be tapered with a larger value.
  • the diameter of the projection 410 is that the diameter D 2 has a maximum value of the diameter can have a maximum of 4.20mm, a minimum value may have a 0.75mm.
  • the length L 1 of the protrusion 410 is a length from one end to the point where the contact portion 420 is in contact with the contact portion 420, and may have a length of 2.50 mm or more and 10.00 mm or less.
  • the length L 1 of the protrusion 410 may be manufactured in consideration of the length of the hollow 111 in consideration of the longitudinal movement of the protrusion 410 to the hollow 111.
  • the outer circumferential surface of the protrusion 410 when the angle formed in the longitudinal direction (Z-axis direction) of the protrusion 410 is ⁇ 1 , the ⁇ 1 value may be 0 ° or more and 46.12 ° or less.
  • the inner circumferential surface of the hollow 111 may be formed larger than the size of the angle ⁇ 2 formed in the longitudinal direction of the hollow 111, that is, the longitudinal direction (Z-axis direction) of the housing 100. .
  • the longitudinal direction in the hollow 111 of the protrusion 410 is provided. Movement may not be smooth, and may be in contact with the inner circumferential surface of the infiltration connector 110, in this case there may be a problem that the suction and discharge of the chemical solution is not smooth.
  • ⁇ 1 may be larger than the size of ⁇ 2 .
  • the ⁇ 2 may be 0, and more preferably as a tapered shape, ⁇ 2 may have a value greater than zero.
  • the hollow 111 may be formed to a diameter of 1.4mm or more and less than 4.45mm for the intake and discharge of the more preferable chemical solution, and the seamless connection with the acupuncture (5), when the hollow 111 is tapered, the diameter
  • the diameter D 1 having the maximum value may be 1.4 mm or more and less than 4.45 mm.
  • the hollow 111 may have a length of 8.3 mm or more and 8.7 mm or less, and preferably 8.5 mm.
  • the attachment portion 420, and a height of 0.1mm be up to more than 0.6mm, the outer diameter of the attachment portion 420 has a D 3 be up to more than 1.5mm 5.2mm.
  • the by attachment portion 420 has a diameter corresponding to appropriate values of the outer diameter and the hollow 111 of the attachment portion 420 is D 3 the projection 410 the outside diameter of the second valve member 400 It can be prevented from leaving the housing body 120 by passing through the hollow 111 and to enable the proper suction and discharge of the chemical liquid.
  • D 2 / D 1 may be 0.169 or more and less than 1.00.
  • the length of the protrusion (410) L 1 when the length of the hollow (111) L 2 days, and the L 1 / L 2 be up to 0.294 more than 1.177, which is the minimum value of 2.50mm, and the maximum value L 1 10.00 It can be derived using the mm and L 2 values 8.50 mm (fixed values taking into account the syringe standard).
  • D 2 / D 3 may be 0.144 or more and less than 1.000.
  • D 1 / D 3 may be 0.269 or more and less than 1.000.
  • the outer diameter D 3 of the attachment portion 420 may be appropriately respond in the above ratio to the diameter D 1 of the hollow 111.
  • the syringe filter assembly according to the present invention in order to filter the foreign matter of the chemical liquid, the syringe cylinder (2) or needle (4)
  • a first valve member (300) installed inside the acupuncture (5) fixing the first through the discharge opening (311) through which the chemical liquid is discharged to the outside;
  • a filter 200 inserted into the first valve member 300 to filter foreign substances from the chemical liquid when the chemical liquid is discharged through the discharge opening 311;
  • the second valve member 400 is installed to be movable in the longitudinal direction in the cylinder 2 or the acupuncture 5, and opens and closes the discharge opening 311 through movement according to the pressure of the chemical liquid. It includes.
  • the filter assembly for a syringe according to the present invention may be installed in a syringe in order to filter foreign substances in the chemical liquid, and more specifically, may be installed at the end of the neck portion 3 in the syringe cylinder 2.
  • the cylinder 2 is a structure in which the chemical liquid is stored and the chemical liquid is sucked or discharged through the push rod 6, and the neck portion 3 for coupling the needle 5 to which the needle 4 is fixed extends. Can be formed.
  • the neck portion 3, the hollow 611 may be formed in the longitudinal direction so that the chemical liquid passes.
  • the hollow 611 is configured to allow the chemical liquid to pass through the neck portion 3 or the needle 5, and may have a tapered shape having a smaller radius toward the needle 4.
  • the cylinder 2 extends in the radial direction of the neck portion 3 to have a step 621. Furthermore, the cylinder 2 forms a flow path through which the chemical liquid is discharged when the step 621 contacts the second valve member 400. At least one flow path groove 622 may be formed in the step 621.
  • the cylinder 2 is formed to be partially extended in the radial direction in order to prevent the discharge of the chemical liquid through the suction passage 301 through the wing portion 320 formed on the lower end of the first valve member (300). It may include the inclined portion 623.
  • the first valve member 300 has a configuration in which an outer circumferential surface forms a suction flow passage 301 in which the chemical liquid is sucked from the outside together with the inner circumferential surface of the cylinder 2 or the infiltrator 5.
  • the first valve member 300 may be coupled to the inner circumferential surface of the cylinder 2 and at least one outer circumferential surface to form a suction passage 301 between the inner circumferential surface and the outer circumferential surface of the cylinder 2.
  • the suction flow path groove may be formed.
  • the first valve member 300 may be fixedly installed on the inner circumferential surface of the cylinder 2 and may also be fixedly installed in the inside of the infiltration device 5.
  • the second valve member 400 is configured to open and close the discharge opening 311 of the first valve member 300, and closes the discharge opening 311 at the time of inhalation of the chemical liquid, and the chemical liquid through the discharge opening 311. To prevent the inhalation, and when the discharge of the chemical liquid can be discharged through the discharge opening 311 by opening the discharge opening 311 through the filter 200.
  • the second valve member 400 has a protrusion 410 formed in a shape corresponding to the hollow 611 which is formed to pass through the chemical liquid in the neck portion 3 or the needle 5, and a protrusion portion. It may include a close contact portion 420 is extended in the radial direction from the 410 is formed to open and close the discharge opening 311 in accordance with the movement of the protrusion 410.
  • the protrusion 410 may be spaced apart from the inner circumferential surface of the hollow 611 formed in the neck 3 or the needle 5, and guided to the hollow 611 to move in the longitudinal direction of the syringe.
  • the protrusion 410 can be stably moved in the longitudinal direction of the syringe, and furthermore, the adhesion part 420 and the protrusion 410 are prevented from vibrating or moving in the transverse direction, thereby stably discharging and sucking the chemical liquid. Can be done.
  • the filter assembly according to the present invention may further include an adapter part 700 installed inside the cylinder 2 below the first valve member 300 to fix the position of the filter 200.
  • the adapter 700 is located below the first valve member 300, to fix the filter 200 is inserted into the first valve member 300, the maximum of the push rod (6) By limiting the rising position, it may be a configuration to enable a stable chemical liquid input.
  • the adapter unit 700 may be fitted into the cylinder 2 and fixedly installed, and at least one chemical path may be formed to allow the chemical to pass therethrough.
  • the size and length ratio between the protrusion 410 and the hollow 611 is as described above.
  • the adhesion part 420 may have an outer diameter of 25.33 mm or less.

Landscapes

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

La présente invention concerne une seringue et, plus spécifiquement, un ensemble de filtre pour une seringue, qui est configuré pour éliminer les substances étrangères dans un fluide d'injection, et une seringue comportant celui-ci. La présente invention concerne un ensemble de filtre pour une seringue, qui est monté entre un raccord (5) pour maintenir une aiguille d'injection (4) et une partie de col (3) d'un cylindre de seringue (2) de façon à filtrer des substances étrangères à partir du fluide d'injection évacué, l'ensemble de filtre étant caractérisé en ce qu'il comprend : un boîtier (100) comportant une partie de connexion de raccord (110) formée sur une extrémité de celui-ci de sorte que le raccord (5) soit couplé à celui-ci, la partie de col (3) du cylindre (2) étant couplée à l'autre extrémité du boîtier (100) ; un premier élément de valve (300) ayant une ouverture d'évacuation (311) formée à travers une extrémité de celui-ci de sorte que le fluide d'injection soit évacué du cylindre (2), la surface périphérique externe du premier élément de valve (300) formant un canal d'aspiration (301) conjointement avec la surface périphérique interne du boîtier (100) de sorte que le fluide d'injection soit aspiré à travers la partie de connexion de raccord (110), le premier élément de valve (300) étant configuré de sorte que, lorsque le fluide d'injection provenant du cylindre (2) est évacué par l'ouverture d'évacuation (311), l'évacuation du fluide d'injection à travers le canal d'aspiration (301) est bloquée ; un filtre (200) inséré dans l'autre extrémité du premier élément de valve (300) de façon à filtrer les substances étrangères du fluide d'injection lorsque le fluide d'injection est évacué par l'ouverture de décharge (311) ; et un deuxième élément de valve (400) installé dans le boîtier (100) de façon à pouvoir se déplacer dans la direction longitudinale de sorte que celui-ci ouvre/ferme l'ouverture d'évacuation (311) en se déplaçant en fonction de la pression du fluide d'injection, de façon à empêcher le fluide d'injection d'être aspiré à travers l'ouverture d'évacuation (311) lorsque le fluide d'injection est aspiré à travers le canal d'aspiration (301).
PCT/KR2019/004291 2018-04-10 2019-04-10 Ensemble de filtre pour seringue et seringue comportant celui-ci WO2019199060A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020207028920A KR20200125726A (ko) 2018-04-10 2019-04-10 주사기용 필터조립체 및 이를 구비하는 주사기

Applications Claiming Priority (2)

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KR1020180041707A KR101890601B1 (ko) 2018-04-10 2018-04-10 주사기용 필터조립체 및 이를 구비하는 주사기
KR10-2018-0041707 2018-04-10

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Publication number Priority date Publication date Assignee Title
KR102042377B1 (ko) * 2019-03-22 2019-11-07 김호임 필터를 구비한 주사기
KR102390990B1 (ko) * 2021-03-02 2022-04-26 강주석 주사기용 젠더 및 이를 포함하는 주사기
KR102554972B1 (ko) * 2021-04-01 2023-07-11 정재은 주사기용 필터기구

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KR101178986B1 (ko) * 2012-05-24 2012-08-31 주식회사 티에이치엠코리아 주사기용 안전 필터 및 이를 구비하는 주사기
US20120271245A1 (en) * 2011-04-21 2012-10-25 Achan Jr Leonard Malleable stopper for a syringe
KR101287239B1 (ko) * 2012-12-24 2013-07-17 김종욱 피스톤 행정에 의한 흡·배출 유도 타입의 빌로우패킹 어셈블리 및 이를 이용한 안전 필터 주사기
KR20150081227A (ko) * 2014-01-03 2015-07-13 동국대학교 산학협력단 필터 니들
KR20170046824A (ko) * 2015-10-19 2017-05-04 (주)에이치앤비메디텍 슬라이딩 유니트가 마련된 필터 니들

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Publication number Priority date Publication date Assignee Title
KR101765786B1 (ko) * 2015-06-23 2017-08-09 주식회사 아모라이프사이언스 안전필터 및 이를 구비한 주사기

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120271245A1 (en) * 2011-04-21 2012-10-25 Achan Jr Leonard Malleable stopper for a syringe
KR101178986B1 (ko) * 2012-05-24 2012-08-31 주식회사 티에이치엠코리아 주사기용 안전 필터 및 이를 구비하는 주사기
KR101287239B1 (ko) * 2012-12-24 2013-07-17 김종욱 피스톤 행정에 의한 흡·배출 유도 타입의 빌로우패킹 어셈블리 및 이를 이용한 안전 필터 주사기
KR20150081227A (ko) * 2014-01-03 2015-07-13 동국대학교 산학협력단 필터 니들
KR20170046824A (ko) * 2015-10-19 2017-05-04 (주)에이치앤비메디텍 슬라이딩 유니트가 마련된 필터 니들

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