WO2018048264A1 - Pointe d'aiguille ayant une fonction de filtration et seringue - Google Patents

Pointe d'aiguille ayant une fonction de filtration et seringue Download PDF

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Publication number
WO2018048264A1
WO2018048264A1 PCT/KR2017/009920 KR2017009920W WO2018048264A1 WO 2018048264 A1 WO2018048264 A1 WO 2018048264A1 KR 2017009920 W KR2017009920 W KR 2017009920W WO 2018048264 A1 WO2018048264 A1 WO 2018048264A1
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WO
WIPO (PCT)
Prior art keywords
cylinder
chemical liquid
unit
needle tip
body portion
Prior art date
Application number
PCT/KR2017/009920
Other languages
English (en)
Korean (ko)
Inventor
이창우
Original Assignee
이창우
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 이창우 filed Critical 이창우
Publication of WO2018048264A1 publication Critical patent/WO2018048264A1/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
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on 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
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/165—Filtering accessories, e.g. blood filters, filters for infusion liquids
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/3129—Syringe barrels
    • A61M5/3134—Syringe barrels characterised by constructional features of the distal end, i.e. end closest to the tip of the needle cannula
    • 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
    • A61M5/3293—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 characterised by features of the 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
    • 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

Definitions

  • the present invention relates to a needle tip and a syringe having a filtration function, and more particularly, a filtration function capable of filtering a foreign substance so as to prevent foreign substances introduced with the chemical liquid from being injected into the patient when the chemical liquid is filled into the syringe. It relates to a needle tip and a syringe having.
  • a shock is applied to an upper portion of an ampoule vial (not shown) containing a chemical solution, and the needle is broken and opened. Then, the needle 12 constituting the needle tip 10 is inserted into an open ampoule vial (not shown). The piston 24 is then retracted to accommodate the chemical liquid in the cylinder 22.
  • the piston 24 is advanced to discharge the chemical liquid to the outside of the cylinder 22 to be injected into the patient.
  • foreign substances such as glass powder generated in the process of breaking the upper portion of the ampoule vial (not shown). These can be discharged to the outside of the cylinder 22 with the chemical liquid, such foreign matter is the main culprit causing a fatal adverse effect on the patient.
  • the ampoule glass bottle (not shown) has been improved to be easily opened without impacting the upper part of the ampoule glass bottle (not shown), or to be filled in a container other than the ampoule glass bottle (not shown). Due to the limitations of the structure of the bottle (not shown) and the impossibility of replacing it with another container according to the chemical components, this situation is still not solved.
  • the present invention is to solve this problem by improving a conventional needle tip or a conventional syringe, not an ampoule vial (not shown).
  • the problem to be solved by the present invention to solve the above problems, to provide a needle tip and a syringe having a filtration function that can be filtered so that the foreign matter introduced with the chemical solution is not injected into the patient when filling the drug solution inside the syringe will be.
  • the needle tip having a filtration function is a needle tip mounted to the front of the cylinder of the syringe in which the chemical liquid is discharged, mounted on the inner wall of the needle tip, the cylinder And a filtering unit to prevent foreign substances contained together with the chemical liquid in the cylinder from being discharged to the outside of the cylinder when the chemical liquid contained therein is discharged to the outside of the cylinder, wherein the filtering unit includes the chemical liquid into the cylinder. It may be arranged in the same direction as the direction in which the chemical liquid flows, or configured to guide the flow of the chemical liquid, so as not to interfere with the flow of the chemical liquid when introduced.
  • the filtering unit the filter unit for filtering the foreign matter; And when the chemical liquid flows into the cylinder, the filter part is disposed in the same direction as the direction in which the chemical liquid flows, and when the chemical liquid is discharged out of the cylinder, a direction different from the direction in which the chemical liquid flows. It may be configured to include; a rotary coupling portion to be arranged to.
  • the filtering unit may further include an annular body portion in which the filter portion and the rotary coupling portion are mounted to be in close contact with the inner wall of the needle tip.
  • the rotary coupling portion is formed by a hinge across the body portion perpendicular to the flow direction of the chemical liquid, the filter portion is folded to face each other by rotating around the rotary coupling portion when the chemical liquid flows into the cylinder
  • the chemical liquid may be formed as a pair of semi-circular plates that are rotated and spread around the rotary coupling part.
  • the pair of semi-circular plates facing each other may be directed toward the cylinder in parallel with the flow direction of the chemical liquid.
  • the filtering unit comprises a filter for filtering the foreign matter; A cylindrical body part incorporating the filter part; And a guide portion recessed in the outer circumferential surface of the body portion in the same direction as the chemical liquid flows, wherein the guide portion is opened while the body portion moves toward the cylinder position when the chemical liquid flows into the cylinder. And guide the chemical liquid to flow along the guide portion, and when the chemical liquid is discharged out of the cylinder, the body portion is closed while moving in the opposite direction in which the cylinder is located, thereby guiding the chemical liquid to flow along the filter portion. It may be configured.
  • the guide portion is recessed in a shape corresponding to the opening and closing unit protruding from the needle tip inner wall in the opposite direction in which the cylinder is located relative to the body portion so that the body portion can be opened and closed when the body portion moves, When the door is separated from the opening and closing unit, it may come into contact with the opening and closing unit.
  • the body portion may be tapered to prevent the guide unit from coming into contact with the casing unit by passing through the opening and closing unit when moving in the opposite direction in which the cylinder is located.
  • the problem to be solved as described above may be solved through the sense of having the following filtration function.
  • the syringe having a filtration function is provided on the inner wall of the front end portion of the cylinder for discharging the chemical liquid, when the chemical liquid contained in the cylinder is discharged to the outside of the cylinder is a foreign matter contained with the chemical liquid in the cylinder
  • a filtering unit to prevent discharge from outside the cylinder wherein the filtering unit is disposed in the same direction as the direction in which the chemical liquid flows, so as not to disturb the flow of the chemical liquid when the chemical liquid flows into the cylinder.
  • the filtering unit may be configured to guide the flow of the chemical liquid.
  • the filtering unit includes a filter unit formed of a pair of semi-circle plate to filter the foreign matter; A ring-shaped body part mounted to the filter part to be in close contact with an inner wall of the front end of the cylinder; And a rotary coupling portion formed by a hinge crossing the body portion perpendicular to the flow direction of the chemical liquid, wherein the rotary coupling portion rotates the semicircular plate about the rotary coupling portion when the chemical liquid flows into the cylinder.
  • the filter unit is folded to face each other so that the filter unit is disposed in the same direction as the direction in which the chemical liquid flows, and when the chemical liquid is discharged to the outside of the cylinder, the semicircular plate is rotated about the rotary coupling unit to be unfolded to expand the filter unit. It may be configured to be disposed in a direction different from the direction in which the chemical liquid flows.
  • the syringe having a filtration function is to prevent the body from being separated from the inner wall of the front end of the cylinder by the flow of the chemical liquid, the cylinder in the opposite direction relative to the body portion
  • a fixed unit protruding from the inner wall of the front end of the cylinder
  • a limiting unit protruding from an inner wall of the front end portion of the cylinder in a direction in which the cylinder is positioned with respect to the body portion.
  • the filtering unit includes a filter for filtering the foreign matter; A cylindrical body part incorporating the filter part; And a guide portion recessed in the outer circumferential surface of the body portion in the same direction as the chemical liquid flows.
  • the guide portion is formed in a shape corresponding to the opening and closing unit protruding from the inner wall of the needle tip in the opposite direction in which the cylinder is located relative to the body portion so that the body portion can be opened and closed when the body portion is moved, the chemical liquid is When flowing into the cylinder, the body portion is opened as it moves away from the opening / closing unit while moving toward the direction in which the cylinder is located to guide the chemical liquid to flow along the guide portion, and when the chemical liquid is discharged out of the cylinder.
  • the body part may be closed as it comes into contact with the opening / closing unit while moving in the opposite direction in which the cylinder is located, and may be configured to guide the chemical liquid to flow along the filter part.
  • the body portion may be tapered so as to prevent the guide portion from coming into contact with the casing unit through the opening and closing unit when moving in the opposite direction in which the cylinder is located.
  • the needle tip and the syringe having a filtration function since the foreign matter is also prevented from being discharged when the chemical liquid is discharged out of the cylinder of the syringe by the filtering unit, the liquid flows together with the chemical liquid when filling the chemical liquid inside the syringe. It is possible to prevent the foreign substance from being injected into the patient.
  • the chemical liquid does not interfere with the flow of the chemical liquid when it is introduced into the cylinder of the syringe, it does not limit the movement of the piston of the syringe as well as the filtering unit. Foreign objects can be caught and the patient can be prevented from injecting.
  • FIG. 1 is a longitudinal cross-sectional view of a conventional syringe with a common needle tip in the future.
  • FIG. 2 is a perspective view showing a filtering unit included in the first embodiment of the needle tip and syringe having a filtration function according to the present invention.
  • 3 and 4 are longitudinal cross-sectional views for explaining the operation of the first embodiment of the needle tip having a filtration function according to the present invention.
  • Fig. 5 is a longitudinal sectional view showing the first embodiment of the syringe with the filtration function according to the present invention.
  • FIG. 6 is a perspective view showing a filtering unit included in a second embodiment of a needle tip and a syringe having a filtration function according to the present invention.
  • FIG. 7 and 8 are longitudinal cross-sectional views for explaining the operation of the second embodiment of the needle tip having a filtration function according to the present invention.
  • Figure 9 is a longitudinal sectional view showing a second embodiment of a syringe with a filtration function according to the present invention.
  • FIG. 2 is a perspective view illustrating a filtering unit included in a first embodiment of a needle tip and a syringe having a filtration function according to the present invention
  • FIGS. 3 and 4 are views of a needle tip having a filtration function according to the present invention
  • Fig. 5 is a longitudinal sectional view showing the operation process in the first embodiment
  • Fig. 5 is a longitudinal sectional view showing the first embodiment of a syringe having a filtration function according to the present invention.
  • the first embodiment 100 of the needle tip and syringe with filtration function may comprise a filtering unit 120.
  • the first embodiment of the needle tip and the first embodiment of the syringe differ only in the positions of the filtering unit 120, the detailed configuration and the functions constituting the needle tip are substantially the same. It will be described in detail with respect to the first embodiment.
  • the filtering unit 120 included in the first embodiment of the needle tip is positioned at position A of FIG. 1, and the filtering unit 120 included in the first embodiment of the syringe is positioned at position B of FIG. 1. There is only a difference.
  • Such a filtering unit 120 is mounted on the inner wall of the needle tip 10, and more precisely, it is mounted on the flow path through which the chemical liquid T flows inside the mounting portion 14 of the needle tip 10.
  • the chemical liquid T is provided on the inner wall of the front end portion of the cylinder 22.
  • the filtering unit 120 does not merely have a function of preventing foreign substances R from being discharged out of the cylinder 22 when the chemical liquid T is discharged to the outside of the cylinder 22.
  • the filtering unit 120 When flowing into the cylinder 22 serves to prevent the flow of the chemical liquid (T).
  • the filtering unit 120 having such a function may be configured in various ways, and thus, the scope of rights is not limited. However, for more detailed description, the filtering unit 120 illustrated in FIG. 2 will be described as an example.
  • the filtering unit 120 may include a filter unit 122, a rotation coupling unit 124, and a body unit 126.
  • the filter unit 122 is a component that filters the foreign matter R, and if the function of filtering the foreign matter R may be various without being limited in material or size.
  • the filter unit 122 may be formed of polymer, glass fiber, paper, or the like, and may be formed of a plate having a pore size of 1 ⁇ m to 5 ⁇ m. However, it is natural that the material or size of the filter 122 should be able to filter the foreign substance R without disturbing the flow of the chemical liquid T.
  • the rotary coupling unit 124 is a component that allows the filter unit 122 to rotate, the chemical liquid (T) flows through the filter unit 122 when the chemical liquid (T) is introduced into the cylinder 22 In the same direction as the direction, and when the chemical liquid (T) is discharged to the outside of the cylinder 22, the filter portion 122 is to be arranged in a direction different from the direction in which the chemical liquid (T) flows.
  • the rotary coupling portion 124 may be composed of a hinge across the body portion 126 to be described later perpendicular to the flow direction of the chemical liquid (T), in this case, the filter portion 122 is the chemical liquid (T) inside the cylinder
  • the chemical liquid (T) is discharged to the outside of the cylinder 22 is a pair of unfolded by rotating around the rotary coupling portion 124 It can be formed into a semicircular plate.
  • the filter unit 122 and the rotary coupling unit 124 are formed as described above, when the chemical liquid T is introduced into the cylinder, the amount of the chemical liquid T passing through the filter unit 122 is significantly reduced, thereby reducing the chemical liquid T. It does not interfere with the flow of the), it is possible to minimize the injection of the foreign substance (R) caught in the filter unit 122 when the drug solution (T) is introduced to the patient.
  • the filter part 122 since the filter part 122 is horizontally placed along the length direction of the needle tip 10 through which the chemical liquid T flows, it does not interfere with the flow of the chemical liquid T, thereby preventing the flow of the chemical liquid T. It will be possible to minimize the restrictions on the movement of the piston 24 of the syringe 20 that is generated when.
  • the amount of the chemical liquid (T) passing through the filter unit 122 is significantly reduced, thereby eliminating the possibility that foreign matter (R) is caught in front of the filter unit 122 when the chemical liquid (T) is introduced, the chemical liquid (T) At the time of discharging), it is possible to prevent the foreign substance R, which may be present between the needle 12 and the filter unit 122, from being injected into the patient.
  • the body portion 126 is a component for fixing the filter unit 122 and the rotary coupling unit 124 described above on the inner wall of the needle tip 10, the filter unit 122 and the rotary coupling unit 124 is mounted If the needle tip 10 is fixed to the inner wall may be formed in any structure.
  • the first embodiment of the needle tip having a filtration function according to the present invention including the filtering unit 120 as described above may further comprise a fixing unit 140.
  • the fixing unit 140 is a component for preventing the body portion 126 from being separated from the inner wall of the needle tip 10 by the flow of the chemical liquid (T), the body portion 126 is the needle tip 10
  • the scope of rights is not limited.
  • the cylinder 22 may protrude from the inner wall of the needle tip 10 in the opposite direction in which the cylinder 22 is positioned, that is, toward the needle 12, based on the body portion 126. have.
  • the fixing unit 140 is provided in the opposite direction in which the cylinder 22 is located with respect to the body 126.
  • the cylinder 22 is located in the direction in which the cylinder 22 is located with respect to the body 126. Since the end of the cylinder 22 is located, the body 126 does not naturally detach from the inside of the mounting portion 14 of the needle tip 10 due to the end of the cylinder 22.
  • the filtering unit 120 is provided with the inner wall of the front end of the cylinder 22 through which the chemical liquid T is discharged, at the end of the cylinder 22. Since it is impossible to prevent the body portion 126 from naturally leaving inside the mounting portion 14 of the needle tip 10, it is advantageous to further include the limiting unit 160.
  • FIG. 6 is a perspective view illustrating a filtering unit included in a second embodiment of a needle tip and a syringe having a filtration function according to the present invention
  • FIGS. 7 and 8 are views of a needle tip having a filtration function according to the present invention
  • Fig. 9 is a longitudinal sectional view showing the operation process in the second embodiment
  • Fig. 9 is a longitudinal sectional view showing the second embodiment of a syringe having a filtration function according to the present invention.
  • the second embodiment 200 of the needle tip and syringe having a filtration function according to the present invention may comprise a filtering unit 220.
  • the second embodiment of the needle tip and the second embodiment of the syringe differ only in the positions of the filtering unit 220, the detailed configuration and the functions of configuring the needle tip are substantially the same. Similar to the embodiment 100, the details of the second embodiment of the needle tip will be described in detail.
  • the filtering unit 220 included in the second embodiment of the needle tip is positioned at position A of FIG. 1, and the filtering unit 220 included in the second embodiment of the syringe is positioned at position B of FIG. 1. There is only a difference.
  • the filtering unit 220 is also mounted on the inner wall of the needle tip 10 in the same manner as the filtering unit 120 of the first embodiment 100, and the chemical liquid T contained in the cylinder 22 of the syringe 20.
  • the chemical liquid T contained in the cylinder 22 of the syringe 20 When discharged to the outside of the cylinder 22 serves to prevent the foreign matter (R) accommodated with the chemical liquid (T) inside the cylinder 22 is discharged to the outside of the cylinder (22).
  • the filtering unit 220 having such a function may be configured in various ways, and therefore, the scope of rights is not limited. However, for more detailed description, the filtering unit 220 illustrated in FIG. 6 will be described as an example.
  • the filtering unit 220 may include a filter unit 222, a guide unit 224, and a body unit 226.
  • the filter unit 222 is substantially the same as the filter unit 122 of the first embodiment 100, a description thereof will be omitted.
  • the body portion 226 is not necessarily formed in a cylindrical shape, but considering the position of the guide portion 224 and the opening and closing unit 240 to be described later radially open and close the unit 240 is disposed in the chemical liquid ( It is advantageous to have a cylindrical shape because it is advantageous for the flow of T).
  • the guide portion 224 is a component that guides the chemical liquid (T) toward any component when the chemical liquid (T) is introduced into the cylinder 22 or discharged to the outside together with the opening and closing unit 240, the chemical liquid It is formed in the outer peripheral surface of the body portion 226 in the same direction as the direction (T) flows.
  • the guide part 224 When the chemical liquid T is introduced into the cylinder 22, the guide part 224 is opened while the body part 226 moves toward the direction in which the cylinder 22 is located, so that the chemical liquid T is guided ( 224 is guided to flow, and when the chemical liquid (T) is discharged to the outside of the cylinder 22, the body portion 226 is closed while moving in the opposite direction in which the cylinder is located so that the chemical liquid (T) is filtered unit 220 Guide it to flow along.
  • the component for opening and closing the guide portion 224 is not limited in structure or shape if it can open and close the guide portion 224 in connection with the movement of the body portion 226, and thus the scope of rights is not limited. Of course.
  • the guide part 224 is opened and closed by an opening / closing unit 240 protruding from the inner wall of the needle tip 10 in the opposite direction in which the cylinder is positioned with respect to the body part 226. Can be.
  • the opening / closing unit 240 may be formed to protrude in a shape corresponding to each other, the guide portion 224 is separated from the guide portion 224 when opening the guide portion 224, the guide portion 224 is closed When in contact with the guide portion 224 may be.
  • the body portion 226 moves in the opposite direction in which the cylinder 22 is located, that is, the direction toward the needle 12, opening and closing unit 240
  • the guide part 224 may not come into contact with the opening / closing unit 240 by passing through). Therefore, to prevent this, the body portion 226 is advantageously tapered.
  • the tapered direction may be a direction in which the radius decreases toward the needle 12, which is because the end of the cylinder 22 is located in the direction in which the cylinder 22 is located with respect to the body portion 226, This is because the end of the cylinder 22 does not naturally detach the body portion 226 from inside the mounting portion 14 of the needle tip 10.
  • the filtering unit 120 is provided with the inner wall of the front end of the cylinder 22 through which the chemical liquid T is discharged, at the end of the cylinder 22. Since it is impossible to prevent the body portion 226 from naturally leaving inside the mounting portion 14 of the needle tip 10, it is advantageous to further include a limiting unit 260.
  • the first and second embodiments 100 and 200 of the needle tip and the syringe having the filtration function according to the present invention include the filtering units 110 and 220 which play the following roles. Therefore, the present invention can solve the problem to be solved as described above in the effect of the invention.
  • the chemical liquid T contained inside the cylinder 22 is formed of the syringe 20.
  • the chemical liquid passes through only the filter units 122 and 222 included in the filtering units 110 and 220, and the foreign matter R contained in the filter units 122 and 222 together with the chemical liquid T. ), It is possible to prevent the foreign matter (R) is discharged to the outside of the cylinder (22).
  • the filter parts 122 and 222 may be disposed in the same direction as the chemical liquid T flows, or the chemical liquid T may be the filter parts 122 and 222. It can be guided to flow to other flow path (guide portion 224) other than), so as not to interfere with the flow of the chemical liquid (T), as described above from the piston 24 of the syringe 20 Not to limit the movement of the of course, the foreign matter is caught in the filtering unit (110, 220) can be prevented from being injected again to the patient.
  • filter portion 124 rotary coupling portion
  • the present invention can be widely used in the medical health industry and the like.

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  • 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 pointe d'aiguille montée sur le côté avant d'un cylindre d'une seringue pour décharger un médicament liquide, la pointe d'aiguille comprenant une unité de filtration montée sur la paroi interne de la pointe d'aiguille et configurée de telle sorte que, lorsque le médicament liquide contenu dans le cylindre est évacué hors du cylindre, les substances étrangères contenues dans le cylindre conjointement avec le médicament liquide sont empêchées d'être évacuées hors du cylindre, l'unité de filtration étant disposée dans la même direction que la direction d'écoulement du médicament liquide ou guidant l'écoulement du médicament liquide de façon à ne pas interférer avec l'écoulement du médicament liquide lorsque le médicament liquide s'écoule dans le cylindre.
PCT/KR2017/009920 2016-09-09 2017-09-08 Pointe d'aiguille ayant une fonction de filtration et seringue WO2018048264A1 (fr)

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KR1020160116624A KR101880602B1 (ko) 2016-09-09 2016-09-09 여과 기능을 갖는 니들 팁 및 주사기
KR10-2016-0116624 2016-09-09

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101911065B1 (ko) 2018-06-05 2018-10-23 임성구 주사기용 약액 필터링장치

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101891787B1 (ko) 2018-04-23 2018-08-27 (주)상아프론테크 필터 주사기
KR20200129280A (ko) 2019-05-08 2020-11-18 문성필 주사기용 이물질 안전 여과장치

Citations (5)

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KR101456378B1 (ko) * 2013-05-02 2014-11-12 박선명 주사기용 필터유닛
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