WO2018048264A1 - Needle tip having filtering function and syringe - Google Patents

Needle tip having filtering function and syringe 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
French (fr)
Korean (ko)
Inventor
이창우
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이창우
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Publication of WO2018048264A1 publication Critical patent/WO2018048264A1/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/158—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

The present invention relates to a needle tip mounted on the front side of a cylinder of a syringe for discharging a liquid medication, the needle tip comprising a filtering unit mounted on the inner wall of the needle tip and configured such that, when the liquid medication contained in the cylinder is discharged out of the cylinder, alien substances contained in the cylinder together with the liquid medication are prevented from being discharged out of the cylinder, wherein the filtering unit is arranged in the same direction as the direction of flow of the liquid medication or guides flow of the liquid medication so as not to interfere with the flow of the liquid medication when the liquid medication flows into the cylinder.

Description

여과 기능을 갖는 니들 팁 및 주사기Needle tip and syringe with filtration
본 발명은 여과 기능을 갖는 니들 팁 및 주사기에 관한 것으로, 더욱 상세하게는 주사기 내부에 약액을 채울 때 약액과 함께 유입된 이물질이 환자에게 주입되는 것을 방지할 수 있도록 이물질을 필터링할 수 있는 여과 기능을 갖는 니들 팁 및 주사기에 관한 것이다.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.
일반적으로, 약액을 환자에게 주입하기 위한 도구들이 많이 있지만 가장 대표적인 것이 주사기이다. 이러한 주사기를 이용하여 환자에게 약액을 주입하는 과정 및 이에 따른 문제점을 도 1을 참조하여 살펴보면 다음과 같다.In general, there are many tools for injecting a drug solution into a patient, but the most representative is a syringe. Looking at the process of injecting the drug solution to the patient using the syringe and the resulting problems with reference to Figure 1 as follows.
먼저, 약액이 들어있는 앰플 유리병(미도시) 상부에 충격을 가하여 이를 부러뜨려 개방한 후, 니들 팁(10)을 구성하는 니들(12)을 개방된 앰플 유리병(미도시) 상부에 삽입하고 피스톤(24)을 후퇴시켜 약액을 실린더(22) 내부에 수용한다.First, 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.
이후, 피스톤(24)을 전진시켜 약액을 실린더(22) 외부로 배출하여 환자에게 주입하게 되는데, 전술한 바와 같이 앰플 유리병(미도시)의 상부를 부러뜨리는 과정에서 발생된 유리 가루와 같은 이물질들이 약액과 함께 실린더(22) 외부로 배출될 수 있는데, 이러한 이물질은 환자에게 치명적인 악영향을 일으키는 주범이 되고 있다.Thereafter, the piston 24 is advanced to discharge the chemical liquid to the outside of the cylinder 22 to be injected into the patient. As described above, 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.
이에, 오늘날 앰플 유리병(미도시)을 상부에 충격을 가하여 부러뜨리지 않고 쉽게 개방할 수 있도록 하거나, 또는 약액을 앰플 유리병(미도시)이 아닌 다른 용기에 담을 수 있도록 개선하고 있으나, 앰플 유리병(미도시)이 갖는 구조의 한계성, 약액 성분에 따른 다른 용기로의 대체 불가능성으로 인해 여전히 이를 해결할 수 없는 실정이다.Therefore, 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.
따라서 본 발명은 앰플 유리병(미도시)이 아닌 일반적인 니들 팁 또는 종래의 주사기를 개선하여 이를 해결하고자 한다.Therefore, the present invention is to solve this problem by improving a conventional needle tip or a conventional syringe, not an ampoule vial (not shown).
전술한 문제점을 해결하기 위하여 본 발명이 해결하고자 하는 과제는, 주사기 내부에 약액을 채울 때 약액과 함께 유입된 이물질이 환자에게 주입되지 않도록 필터링할 수 있는 여과 기능을 갖는 니들 팁 및 주사기를 제공하는 것이다.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.
그 밖의 본 발명이 해결하고자 하는 과제들은 이상에서 언급한 과제들로 제한되지 않으며, 언급되지 않는 또 다른 과제들은 아래의 기재로부터 당업자에게 명확하게 이해될 수 있을 것이다.Other problems to be solved by the present invention are not limited to the above-mentioned problems, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.
전술한 바와 같은 해결하고자 하는 과제를 해결하기 위하여, 본 발명에 따른 여과 기능을 갖는 니들 팁은, 약액이 배출되는 주사기의 실린더 전방에 장착되는 니들 팁으로서, 상기 니들 팁 내벽에 장착되어, 상기 실린더 내부에 수용된 상기 약액이 상기 실린더 외부로 배출될 때 상기 실린더 내부에 상기 약액과 함께 수용된 이물질이 상기 실린더 외부로 배출되는 것을 방지하는 필터링 유닛을 포함하되, 상기 필터링 유닛은 상기 약액이 상기 실린더 내부로 유입될 때 상기 약액의 유동을 방해하지 않도록, 상기 약액이 유동하는 방향과 동일한 방향으로 배치되거나, 또는 상기 약액이 유동하는 것을 안내하도록 구성될 수 있다.In order to solve the problem to be solved as described above, the needle tip having a filtration function according to the present invention 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.
여기서, 상기 필터링 유닛은, 상기 이물질을 거르는 필터부; 및 상기 약액이 상기 실린더 내부로 유입될 때에는 상기 필터부를 상기 약액이 유동하는 방향과 동일한 방향으로 배치되도록 하고, 상기 약액이 상기 실린더 외부로 배출될 때에는 상기 필터부를 상기 약액이 유동하는 방향과 다른 방향으로 배치되도록 하는 회전결합부;를 포함하여 구성될 수 있다.Here, 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.
또한, 상기 필터링 유닛은, 상기 필터부 및 상기 회전결합부가 장착되어 상기 니들 팁 내벽에 밀착되는 고리 형상의 몸체부;을 더 포함하여 구성될 수도 있다.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.
이때, 상기 회전결합부는 상기 약액의 유동방향에 수직되게 상기 몸체부를 가로지르는 힌지로 형성되고, 상기 필터부는 상기 약액이 상기 실린더 내부로 유입될 때에는 상기 회전결합부를 중심으로 회전하여 서로 마주보게 접혀지고, 상기 약액이 상기 실린더 외부로 배출될 때에는 상기 회전결합부를 중심으로 회전하여 펼쳐지는 한 쌍의 반원 판으로 형성될 수 있다.At this time, 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 When the chemical liquid is discharged to the outside of 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.
뿐만 아니라, 상기 필터부는 상기 회전결합부를 중심으로 회전하여 서로 마주보게 접혀질 때, 서로 마주보는 한 쌍의 반원 판은 상기 약액의 유동방향과 평행하게 측면이 상기 실린더를 향하게 될 수 있다.In addition, when the filter unit is rotated around the rotary coupling unit and folded to face each other, 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.
아울러, 본 발명에 따른 여과 기능을 갖는 니들 팁은 상기 약액의 유동에 의해 상기 몸체부가 상기 니들 팁 내벽에서 이탈되는 것을 방지할 수 있도록, 상기 몸체부를 기준으로 상기 실린더가 위치하는 반대 방향에 상기 니들 팁 내벽으로부터 돌출 형성된 고정 유닛을 더 포함하여 구성될 수도 있다.In addition, the needle tip having a filtration function according to the present invention to prevent the body portion from being separated from the needle tip inner wall by the flow of the chemical liquid, the needle in the opposite direction in which the cylinder is located relative to the body portion It may be configured to further include a fixing unit protruding from the tip inner wall.
한편, 본 발명에 따른 여과 기능을 갖는 니들 팁에 있어서, 상기 필터링 유닛은 상기 이물질을 거르는 필터부; 상기 필터부를 내장한 원통형의 몸체부; 및 상기 약액이 유동하는 방향과 동일한 방향으로 상기 몸체부의 외주면에 함몰 형성된 가이드부를 포함하되, 상기 가이드부는 상기 약액이 상기 실린더 내부로 유입될 때에는 상기 몸체부가 상기 실린더가 위치하는 방향을 향해 이동하면서 개방되어 상기 약액이 상기 가이드부를 따라 유동하도록 안내하고, 상기 약액이 상기 실린더 외부로 배출될 때에는 상기 몸체부가 상기 실린더가 위치하는 반대 방향으로 이동하면서 폐쇄되어 상기 약액이 상기 필터부를 따라 유동하도록 안내하도록 달리 구성될 수도 있다.On the other hand, in the needle tip having a filtration function according to the present invention, 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.
이때, 상기 가이드부는 상기 몸체부가 이동할 때 개폐될 수 있도록, 상기 몸체부를 기준으로 상기 실린더가 위치하는 반대 방향에 상기 니들 팁 내벽으로부터 돌출 형성된 개폐 유닛에 대응하는 형상으로 함몰 형성되어, 개방될 때에는 상기 개폐 유닛으로부터 이탈되고 폐쇄될 때에는 상기 개폐 유닛과 접하게 될 수 있다.At this time, 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.
또한, 상기 몸체부는 상기 실린더가 위치하는 반대 방향으로 이동할 때, 상기 개폐 유닛을 통과하여 상기 가이드부가 상기 계패 유닛과 접하지 않게 되는 것을 방지할 수 있도록 테이퍼질 수 있다.In addition, 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.
이상 설명한 바와 같은 본 발명에 따른 니들 팁 외에도, 다음과 같은 여과 기능을 갖는 주시기를 통해 전술한 바와 같은 해결하고자 하는 과제를 해결할 수도 있다.In addition to the needle tip according to the present invention as described above, the problem to be solved as described above may be solved through the sense of having the following filtration function.
여기서, 본 발명에 따른 여과 기능을 갖는 주사기는 약액이 배출되는 실린더의 전단부 내벽에 마련되어, 상기 실린더 내부에 수용된 상기 약액이 상기 실린더 외부로 배출될 때 상기 실린더 내부에 상기 약액과 함께 수용된 이물질이 상기 실린더 외부로 배출되는 것을 방지하는 필터링 유닛을 포함하되, 상기 필터링 유닛은 상기 약액이 상기 실린더 내부로 유입될 때 상기 약액의 유동을 방해하지 않도록, 상기 약액이 유동하는 방향과 동일한 방향으로 배치되거나, 또는 상기 약액이 유동하는 것을 안내하도록 구성될 수 있다.Here, the syringe having a filtration function according to the present invention 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 And 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. Or, may be configured to guide the flow of the chemical liquid.
이때, 상기 필터링 유닛은 상기 이물질을 거르도록 한 쌍의 반원 판으로 형성된 필터부; 상기 필터부가 장착되어 상기 실린더의 전단부 내벽에 밀착되는 고리 형상의 몸체부; 및 상기 약액의 유동방향에 수직되게 상기 몸체부를 가로지르는 힌지로 형성된 회전결합부를 포함하되, 상기 회전결합부는 상기 약액이 상기 실린더 내부로 유입될 때에는 상기 반원 판을 상기 회전결합부를 중심으로 회전시켜 서로 마주보게 접히도록 하여 상기 필터부를 상기 약액이 유동하는 방향과 동일한 방향으로 배치되도록 하고, 상기 약액이 상기 실린더 외부로 배출될 때에는 상기 반원 판을 상기 회전결합부를 중심으로 회전시켜 펼쳐지도록 하여 상기 필터부를 상기 약액이 유동하는 방향과 다른 방향으로 배치되도록 구성될 수 있다.At this time, 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.
또한, 본 발명에 따른 여과 기능을 갖는 주사기는 상기 약액의 유동에 의해 상기 몸체부가 상기 실린더의 전단부 내벽에서 이탈되는 것을 방지할 수 있도록, 상기 몸체부를 기준으로 상기 실린더가 위치하는 반대 방향에 상기 실린더의 전단부 내벽으로부터 돌출 형성된 고정 유닛; 및 상기 몸체부를 기준으로 상기 실린더가 위치하는 방향에 상기 실린더의 전단부 내벽으로부터 돌출 형성된 제한 유닛을 더 포함하여 구성될 수도 있다.In addition, the syringe having a filtration function according to the present invention 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; And 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.
한편, 본 발명에 따른 여과 기능을 갖는 주사기에 있어서 상기 필터링 유닛은 상기 이물질을 거르는 필터부; 상기 필터부를 내장한 원통형의 몸체부; 및 상기 약액이 유동하는 방향과 동일한 방향으로 상기 몸체부의 외주면에 함몰 형성된 가이드부를 포함하여 구성될 수도 있다.On the other hand, in the syringe having a filtration function according to the present invention, 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.
이때, 상기 가이드부는 상기 몸체부가 이동할 때 개폐될 수 있도록, 상기 몸체부를 기준으로 상기 실린더가 위치하는 반대 방향에 상기 니들 팁 내벽으로부터 돌출 형성된 개폐 유닛에 대응하는 형상으로 함몰 형성되어, 상기 약액이 상기 실린더 내부로 유입될 때에는 상기 몸체부가 상기 실린더가 위치하는 방향을 향해 이동하면서 상기 개폐 유닛으로부터 이탈됨에 따라 개방되어 상기 약액이 상기 가이드부를 따라 유동하도록 안내하고, 상기 약액이 상기 실린더 외부로 배출될 때에는 상기 몸체부가 상기 실린더가 위치하는 반대 방향으로 이동하면서 상기 개폐 유닛과 접하게 됨에 따라 폐쇄되어 상기 약액이 상기 필터부를 따라 유동하도록 안내하도록 구성될 수도 있다.In this case, 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.
또한, 상기 몸체부는, 상기 실린더가 위치하는 반대 방향으로 이동할 때, 상기 개폐 유닛을 통과하여 상기 가이드부가 상기 계패 유닛과 접하지 않게 되는 것을 방지할 수 있도록 테이퍼질 수 있다.In addition, 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.
본 발명에 따른 여과 기능을 갖는 니들 팁 및 주사기에 의하면, 필터링 유닛에 의해 약액이 주사기의 실린더 외부로 배출 될 때 이물질도 함께 배출되는 것이 방지되기 때문에, 주사기 내부에 약액을 채울 때 약액과 함께 유입된 이물질이 환자에게 주입되지 않도록 할 수 있다.According to the needle tip and the syringe having a filtration function according to the present invention, 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.
추가적으로, 본 발명에 따른 여과 기능을 갖는 니들 팁 및 주사기에 의하면, 약액이 주사기의 실린더 내부로 유입될 때 약액의 유동을 방해하지 않기 때문에, 주사기의 피스톤의 움직임을 제한하지 않음은 물론 필터링 유닛에 이물질이 걸려 있다가 환자가 주입되는 것을 방지할 수 있다.In addition, according to the needle tip and the syringe having the filtration function according to the present invention, since 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.
이와 같은 본 발명의 효과는 이상에서 언급한 효과들로 제한되지 않으며, 언급되지 않은 또 다른 효과들은 청구범위의 기재로부터 당업자에게 명확하게 이해될 수 있을 것이다.Such effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.
도 1은 일반적인 니들 팁이 장차된 종래의 주사기의 종단면도이다.1 is a longitudinal cross-sectional view of a conventional syringe with a common needle tip in the future.
도 2는 본 발명에 따른 여과 기능을 갖는 니들 팁 및 주사기의 제1 실시예에 포함되는 필터링 유닛을 도시한 사시도이다.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.
도 3 및 도 4는 본 발명에 따른 여과 기능을 갖는 니들 팁의 제1 실시예에 작동 과정을 설명하기 위하여 도시한 종단면도이다.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.
도 5는 본 발명에 따른 여과 기능을 갖는 주사기의 제1 실시예를 도시한 종단면도이다.Fig. 5 is a longitudinal sectional view showing the first embodiment of the syringe with the filtration function according to the present invention.
도 6은 본 발명에 따른 여과 기능을 갖는 니들 팁 및 주사기의 제2 실시예에 포함되는 필터링 유닛을 도시한 사시도이다.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.
도 7 및 도 8은 본 발명에 따른 여과 기능을 갖는 니들 팁의 제2 실시예에 작동 과정을 설명하기 위하여 도시한 종단면도이다.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.
도 9는 본 발명에 따른 여과 기능을 갖는 주사기의 제2 실시예를 도시한 종단면도이다.Figure 9 is a longitudinal sectional view showing a second embodiment of a syringe with a filtration function according to the present invention.
이하, 본 발명의 실시예에 대하여 첨부한 도면을 참조하여 상세하게 설명하기로 한다. 다만, 첨부된 도면은 본 발명의 내용을 보다 쉽게 개시하기 위하여 설명되는 것일 뿐, 본 발명의 범위가 첨부된 도면의 범위로 한정되는 것이 아님은 이 기술분야의 통상의 지식을 가진 자라면 용이하게 알 수 있을 것이다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the accompanying drawings are only described in order to more easily disclose the contents of the present invention, but the scope of the present invention is not limited to the scope of the accompanying drawings that will be readily available to those of ordinary skill in the art. You will know.
또한, 본 발명의 실시예를 설명함에 있어서, 동일 기능을 갖는 구성요소에 대해서는 동일 명칭 및 동일부호를 사용할 뿐 실질적으론 종래기술의 구성요소와 완전히 동일하지 않음을 미리 밝힌다.In addition, in describing the embodiments of the present invention, the same name and the same reference numerals are used for components having the same function, and it is revealed that they are not substantially the same as the components of the prior art.
뿐만 아니라, 본 출원에서 사용한 용어는 단지 특정한 실시예를 설명하기 위해 사용된 것으로, 본 발명을 한정하려는 의도가 아니다. 단수의 표현은 문맥상 명백하게 다르게 뜻하지 않는 한, 복수의 표현을 포함한다. 본 출원에서, "포함하다" 또는 "가지다" 등의 용어는 명세서상에 기재된 특징, 숫자, 단계, 동작, 구성요소, 부품 또는 이들을 조합한 것이 존재함을 지정하려는 것이지, 하나 또는 그 이상의 다른 특징들이나 숫자, 단계, 동작, 구성요소, 부품 또는 이들을 조합한 것들의 존재 또는 부가 가능성을 미리 배제하지 않는 것으로 이해되어야 한다.In addition, the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.
그럼 이상의 내용을 기초로, 먼저 도 2 내지 도 5를 참조하여, 본 발명에 따른 여과 기능을 갖는 니들 팁 및 주사기의 제1 실시예에 대하여 상세하게 설명하기로 한다.Based on the above, first, a first embodiment of a needle tip and a syringe having a filtration function according to the present invention will be described in detail with reference to FIGS. 2 to 5.
여기서, 도 2는 본 발명에 따른 여과 기능을 갖는 니들 팁 및 주사기의 제1 실시예에 포함되는 필터링 유닛을 도시한 사시도이고, 도 3 및 도 4는 본 발명에 따른 여과 기능을 갖는 니들 팁의 제1 실시예에 작동 과정을 설명하기 위하여 도시한 종단면도이며, 도 5는 본 발명에 따른 여과 기능을 갖는 주사기의 제1 실시예를 도시한 종단면도이다.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, and 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, and Fig. 5 is a longitudinal sectional view showing the first embodiment of a syringe having a filtration function according to the present invention.
도 2 내지 도 5에 도시된 바와 같이, 본 발명에 따른 여과 기능을 갖는 니들 팁 및 주사기의 제1 실시예(100)는 필터링 유닛(120)을 포함하여 구성될 수 있다.As shown in FIGS. 2 to 5, the first embodiment 100 of the needle tip and syringe with filtration function according to the present invention may comprise a filtering unit 120.
이때, 니들 팁에 대한 제1 실시예와 주사기에 대한 제1 실시예는 필터링 유닛(120)의 위치만 상이할 뿐, 이를 구성하는 세부구성 및 기능은 실질적으로 동일하다고 할 것이므로, 이하에서는 니들 팁에 대한 제1 실시예를 중심으로 상세하게 설명한다.In this case, since 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.
즉, 도 1의 A위치에 니들 팁에 대한 제1 실시예에 포함되는 필터링 유닛(120)이 위치하고, 도 1의 B위치에 주사기에 대한 제1 실시예에 포함되는 필터링 유닛(120)이 위치하는 것만 차이가 있을 뿐이다.That is, 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.
이와 같은 필터링 유닛(120)은, 니들 팁(10) 내벽에 장착되며, - 더욱 정확하게 설명하면, 니들 팁(10)의 장착부(14) 내측에 약액(T)이 유동하는 유로 상에 장착되는 것이며, 주사기(20)의 경우에는 약액(T)이 배출되는 실린더(22)의 전단부 내벽에 마련된다. - 주사기(20)의 실린더(22) 내부에 수용된 약액(T)이 실린더(22) 외부로 배출될 때 실린더(22) 내부에 약액(T)과 함께 수용된 이물질(R)이 실린더(22) 외부로 배출되는 것을 방지하는 기능을 한다.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. In the case of the syringe 20, the chemical liquid T is provided on the inner wall of the front end portion of the cylinder 22. When the chemical liquid T contained inside the cylinder 22 of the syringe 20 is discharged to the outside of the cylinder 22, the foreign substance R contained together with the chemical liquid T inside the cylinder 22 is outside the cylinder 22. To prevent it from being discharged.
또한, 필터링 유닛(120)은 단순히 약액(T)을 실린더(22) 외부로 배출할 때 이물질(R)이 실린더(22) 외부로 배출되는 것을 방지하는 기능만을 갖는 것이 아니라, 약액(T)이 실린더(22) 내부로 유입될 때 약액(T)의 유동을 방해하지 않도록 하는 기능을 한다.In addition, 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. When flowing into the cylinder 22 serves to prevent the flow of the chemical liquid (T).
이러한 기능을 하는 필터링 유닛(120)은 다양하게 구성될 수 있으며, 이로 인해 권리범위가 제한되지 않음은 당연하다. 하지만 더욱 상세한 설명을 위하여 도 2에 도시된 필터링 유닛(120)을 예를 들어 설명하면 다음과 같다.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.
도 2에 도시된 바와 같이, 필터링 유닛(120)은 필터부(122), 회전결합부(124), 몸체부(126)를 포함하여 구성될 수 있다.As shown in FIG. 2, the filtering unit 120 may include a filter unit 122, a rotation coupling unit 124, and a body unit 126.
여기서, 필터부(122)는 이물질(R)을 거르는 구성요소로서, 이물질(R)을 거르는 기능을 한다면 재질이나 크기 등에 있어서 제한되지 않고 다양할 수 있다.Here, 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.
일례로, 필터부(122)는 폴리머, 유리섬유, 종이 등으로 형성될 수 있으며, 1㎛ 내지 5㎛의 포어 사이즈를 갖는 플레이트로 형성될 수 있다. 다만, 필터부(122)의 재질이나 크기 등은 약액(T)의 유동을 방해하지 않으면서도 이물질(R)을 거르도록 할 수 있도록 하여야 함은 당연하다.For example, 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 μm to 5 μm. 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.
한편, 회전결합부(124)는 필터부(122)가 회전 가능하도록 하는 구성요소로서, 약액(T)이 실린더(22) 내부로 유입될 때에는 필터부(122)를 약액(T)이 유동하는 방향과 동일한 방향으로 배치되도록 하고, 약액(T)이 실린더(22) 외부로 배출될 때에는 필터부(122)를 약액(T)이 유동하는 방향과 다른 방향으로 배치되도록 한다.On the other hand, 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.
이러한 회전결합부(124)는 약액(T)의 유동방향에 수직되게 후술할 몸체부(126)를 가로지르는 힌지로 구성될 수 있으며, 이 경우 필터부(122)는 약액(T)이 실린더 내부로 유입될 때 회전결합부(124)를 중심으로 회전하여 서로 마주보게 접혀지고 약액(T)이 실린더(22) 외부로 배출될 때에는 회전결합부(124)를 중심으로 회전하여 펼쳐지는 한 쌍의 반원 판으로 형성될 수 있다.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 When introduced into the rotary coupling portion 124 is rotated about each other and folded to face each other, when 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.
이와 같이 필터부(122)와 회전결합부(124)가 형성됨에 따라, 약액(T)이 실린더 내부로 유입될 때 필터부(122)를 지나가는 약액(T)의 양이 현저하게 줄어들어 약액(T)의 유동을 방해하지 않게 되고, 약액(T) 유입시 필터부(122)에 걸려 있던 이물질(R)이 환자게게 주입되는 것을 최소화할 수 있다.As 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.
즉, 필터부(122)가 약액(T)이 유동하는 니들 팁(10)의 길이 방향을 따라 수평하게 놓여지므로 약액(T)의 유동을 방해하지 않으며, 이로 인해 약액(T)의 유동을 방해하게 될 때 발생되는 주사기(20)의 피스톤(24) 움직임에 대한 제한을 최소화할 수 있을 것이다.That is, 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.
또한, 필터부(122)를 지나가는 약액(T)의 양이 현저하게 줄어들므로 약액(T)의 유입시 이물질(R)이 필터부(122)의 전방에 걸려있을 가능성을 배제시켜, 약액(T)의 배출시 니들(12)과 필터부(122) 사이에 존재할 수 있는 이물질(R)이 환자로 주입되는 것을 방지할 수 있다.In addition, 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.
이와 같은 효과는 전술한 [발명의 효과]에도 기재되어 있는 것으로, 필터부(122)가 회전결합부(124)를 중심으로 회전하여 서로 마주보는 한 쌍의 반원 판이 측면이 실린더(22)를 향하게 되도록 후방을 향해 90도 각도로 접혀질 때 극대화될 수 있을 것이다.This effect is described in the above-described [Effects of the Invention], and the filter unit 122 rotates about the rotary coupling unit 124 so that a pair of semicircle plates facing each other face the cylinder 22. It will be maximized when folded at an angle of 90 degrees towards the rear.
한편, 몸체부(126)는 전술한 필터부(122)와 회전결합부(124)를 니들 팁(10) 내벽에 고정시키는 구성요소로서, 필터부(122)와 회전결합부(124)가 장착되어 니들 팁(10) 내벽에 고정된다면 어떠한 구조로 형성되어도 무방하다.On the other hand, 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.
다만, 약액(T)의 유동을 방해하지 않기 위해서는 고리 형상으로 형성되어 니들 팁(10) 내벽에 밀착되는 것이 유리하다.However, in order not to disturb the flow of the chemical liquid (T) is formed in a ring shape it is advantageous to be in close contact with the inner wall of the needle tip (10).
이상 설명한 바와 같은 필터링 유닛(120)을 포함하는 본 발명에 따른 여과 기능을 갖는 니들 팁의 제1 실시예는 고정 유닛(140)을 더 포함하여 구성될 수 있다.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.
이때, 고정 유닛(140)은 약액(T)의 유동에 의해 몸체부(126)가 니들 팁(10) 내벽에서 이탈하는 것을 방지하기 위한 구성요소로서, 몸체부(126)가 니들 팁(10)의 장착부(14) 내측에서 이탈되지 않도록 한다면 그 구성이나 형상 등에 대하여는 제한이 없으며, 이로 인해 권리범위가 한정되지 않음은 당연하다.At this time, 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 There is no restriction on the configuration or shape, so as not to be separated from the inside of the mounting portion 14 of this, it is natural that the scope of rights is not limited.
그러나 더욱 상세한 설명을 위하여 예를 들어 설명하면, 몸체부(126)를 기준으로 실린더(22)가 위치하는 반대 방향, 즉 니들(12)을 향하는 방향에 니들 팁(10) 내벽으로부터 돌출 형성될 수 있다.However, for example, for more detailed description, 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.
이와 같이 몸체부(126)를 기준으로 실린더(22)가 위치하는 반대 방향에 고정 유닛(140)을 마련하는 것은, 몸체부(126)를 기준으로 실린더(22)가 위치하는 방향에서는 실린더(22)의 단부가 위치하기 때문에, 실린더(22)의 단부로 인해 몸체부(126)가 니들 팁(10)의 장착부(14) 내측에서 자연스럽게 이탈되지 않기 때문이다.In this way, 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.
그러나 필터링 유닛(120)이 약액(T)이 배출되는 실린더(22)의 전단부 내벽이 마련되는 본 발명에 따른 여과 기능을 갖는 주사기의 제1 실시예의 경우에 있어서는, 실린더(22)의 단부로 인해 몸체부(126)가 니들 팁(10)의 장착부(14) 내측에서 자연스럽게 이탈되지 않도록 하는 것이 불가능하므로, 제한 유닛(160)을 추가적으로 포함하는 것이 유리하다.However, in the case of the first embodiment of the syringe with the filtration function according to the present invention, in which 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.
이어서, 도 6 내지 도 9를 참조하여, 본 발명에 따른 여과 기능을 갖는 니들 팁 및 주사기의 제2 실시예에 대하여 상세하게 설명하기로 한다.6 to 9, a second embodiment of a needle tip and a syringe having a filtration function according to the present invention will be described in detail.
여기서, 도 6은 본 발명에 따른 여과 기능을 갖는 니들 팁 및 주사기의 제2 실시예에 포함되는 필터링 유닛을 도시한 사시도이고, 도 7 및 도 8은 본 발명에 따른 여과 기능을 갖는 니들 팁의 제2 실시예에 작동 과정을 설명하기 위하여 도시한 종단면도이며, 도 9는 본 발명에 따른 여과 기능을 갖는 주사기의 제2 실시예를 도시한 종단면도이다.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, and 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, and Fig. 9 is a longitudinal sectional view showing the second embodiment of a syringe having a filtration function according to the present invention.
도 6 내지 도 9에 도시된 바와 같이, 본 발명에 따른 여과 기능을 갖는 니들 팁 및 주사기의 제2 실시예(200)는 필터링 유닛(220)을 포함하여 구성될 수 있다.As shown in Figures 6 to 9, 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.
이때, 니들 팁에 대한 제2 실시예와 주사기에 대한 제2 실시예는 필터링 유닛(220)의 위치만 상이할 뿐, 이를 구성하는 세부구성 및 기능은 실질적으로 동일하다고 할 것이므로, 이 역시 제1 실시예(100)와 유사하게 니들 팁에 대한 제2 실시예를 중심으로 상세하게 설명한다.In this case, since 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.
즉, 도 1의 A위치에 니들 팁에 대한 제2 실시예에 포함되는 필터링 유닛(220)이 위치하고, 도 1의 B위치에 주사기에 대한 제2 실시예에 포함되는 필터링 유닛(220)이 위치하는 것만 차이가 있을 뿐이다.That is, 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.
이와 같은 필터링 유닛(220) 또한 제1 실시예(100)의 필터링 유닛(120)과 동일하게 니들 팁(10) 내벽에 장착되며, 주사기(20)의 실린더(22) 내부에 수용된 약액(T)이 실린더(22) 외부로 배출될 때 실린더(22) 내부에 약액(T)과 함께 수용된 이물질(R)이 실린더(22) 외부로 배출되는 것을 방지하는 기능을 한다.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. 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).
이러한 기능을 하는 필터링 유닛(220)은 다양하게 구성될 수 있으며, 이로 인해 권리범위가 제한되지 않음은 당연하다. 하지만 더욱 상세한 설명을 위하여 도 6에 도시된 필터링 유닛(220)을 예를 들어 설명하면 다음과 같다.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.
도 6에 도시된 바와 같이, 필터링 유닛(220)은 필터부(222), 가이드부(224), 몸체부(226)를 포함하여 구성될 수 있다.As shown in FIG. 6, the filtering unit 220 may include a filter unit 222, a guide unit 224, and a body unit 226.
여기서, 필터부(222)는 제1 실시예(100)의 필터부(122)와 실질적으로 동일하므로, 이에 대한 설명은 생략하기로 한다.Here, since the filter unit 222 is substantially the same as the filter unit 122 of the first embodiment 100, a description thereof will be omitted.
한편, 몸체부(226)는, 제1 실시예(100)의 몸체부(226)와 달리, 필터부(222)를 내장한 원통형으로 형성된다. 물론, 몸체부(226)가 반드시 원통형으로 형성될 필요는 없으나, 후술할 가이드부(224)와 개폐 유닛(240)의 위치를 고려하여 볼 때 방사형으로 개폐 유닛(240)이 배치되는 것이 약액(T)의 유동에 유리하기 때문에 원통형으로 형성되는 것이 유리하다.On the other hand, the body portion 226, unlike the body portion 226 of the first embodiment 100, is formed in a cylindrical shape containing the filter portion 222. Of course, 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).
한편, 가이드부(224)는 개폐 유닛(240)과 함께 약액(T)이 실린더(22) 내부로 유입되거나 외부로 배출될 때 약액(T)이 어느 구성요소를 향해 안내하는 구성요소로서, 약액(T)이 유동하는 방향과 동일한 방향으로 몸체부(226)의 외주면에 함몰 형성된다.On the other hand, 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.
이러한 가이드부(224)는, 약액(T)이 실린더(22) 내부로 유입될 때에는 몸체부(226)가 실린더(22)가 위치하는 방향을 향해 이동하면서 개방되어 약액(T)이 가이드부(224)를 따라 유동하도록 안내하고, 약액(T)이 실린더(22) 외부로 배출될 때에는 몸체부(226)가 실린더가 위치하는 반대 방향으로 이동하면서 폐쇄되어 약액(T)이 필터링 유닛(220)를 따라 유동하도록 안내한다.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.
이때, 가이드부(224)를 개폐하는 구성요소는 몸체부(226)의 이동과 연계되어 가이드부(224)를 개폐할 수 있다면 구조나 형상에 있어서 제한이 없으며, 이로 인해 권리범위가 한정되지 않음은 당연하다.At this time, 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.
그러나 더욱 상세한 설명을 위하여 예를 들어 설명하면, 몸체부(226)를 기준으로 실린더가 위치하는 반대 방향에 니들 팁(10) 내벽으로부터 돌출 형성된 개폐 유닛(240)에 의해 가이드부(224)는 개폐될 수 있다.However, for example, 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.
이때, 개폐 유닛(240)은 가이드부(224)는 서로 대응하는 형상으로 돌출 형성될 수 있으며, 가이드부(224)를 개방할 때에는 가이드부(224)로부터 이탈되고, 가이드부(224)를 폐쇄할 때에는 가이드부(224)와 접하게 될 수 있다.In this case, 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.
한편, 이상 설명한 바와 같이 필터링 유닛(220)이 작동하는 과정에 있어서, 몸체부(226)가 실린더(22)가 위치하는 반대방향, 즉 니들(12)을 향하는 방향으로 이동할 때, 개폐 유닛(240)을 통과하여 가이드부(224)가 개폐 유닛(240)과 접하게 되지 않을 수 있다. 따라서 이를 방지하기 위하여 몸체부(226)는 테이퍼지는 것이 유리하다.On the other hand, in the process of operating the filtering unit 220 as described above, when 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.
이때, 테이퍼진 방향은 니들(12)을 향할수록 반경이 줄어드는 방향일 수 있는데, 이는 몸체부(226)를 기준으로 실린더(22)가 위치하는 방향에는 실린더(22)의 단부가 위치하기 때문에, 실린더(22)의 단부로 인해 몸체부(226)가 니들 팁(10)의 장착부(14) 내측에서 자연스럽게 이탈되지 않기 때문이다.At this time, 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.
그러나 필터링 유닛(120)이 약액(T)이 배출되는 실린더(22)의 전단부 내벽이 마련되는 본 발명에 따른 여과 기능을 갖는 주사기의 제2 실시예의 경우에 있어서는, 실린더(22)의 단부로 인해 몸체부(226)가 니들 팁(10)의 장착부(14) 내측에서 자연스럽게 이탈되지 않도록 하는 것이 불가능하므로, 제한 유닛(260)을 추가적으로 포함하는 것이 유리하다.However, in the case of the second embodiment of the syringe with the filtration function according to the present invention, in which 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.
이상 설명한 바와 같이, 본 발명에 따른 여과 기능을 갖는 니들 팁 및 주사기의 제1 실시예(100) 및 제2 실시예(200)에는 다음과 같은 역할을 하는 필터링 유닛(110, 220)을 포함하고 있으므로, [발명의 효과]에서 전술한 바와 같이 본 발명이 [해결하고자 하는 과제]를 해결할 수 있다.As described above, 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.
즉, 본 발명에 따른 여과 기능을 갖는 니들 팁 및 주사기의 제1 실시예(100) 및 제2 실시예(200)에 있어서, 실린더(22) 내부에 수용된 약액(T)이 주사기(20)의 실린더(22) 외부로 배출될 때에는 약액이 필터링 유닛(110, 220)에 포함된 필터부(122, 222)만을 지나도록 하여 필터부(122, 222)에 약액(T)과 함께 수용된 이물질(R)이 걸려서, 이물질(R)이 실린더(22) 외부로 배출되는 것을 방지할 수 있다.That is, in the first embodiment 100 and the second embodiment 200 of the needle tip and the syringe having a filtration function according to the present invention, the chemical liquid T contained inside the cylinder 22 is formed of the syringe 20. When the liquid is discharged to the outside of the cylinder 22, 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).
뿐만 아니라, 약액(T)이 실린더(22) 내부로 유입될 때에는 필터부(122, 222)가 약액(T)이 유동하는 방향과 동일한 방향으로 배치되거나 약액(T)이 필터부(122, 222)가 아닌 다른 유로(가이드부(224))로 유동할 수 있도록 안내하여, 약액(T)의 유동을 방해하지 않도록 할 수 잇으며, 이로부터 전술한 바와 같이 주사기(20)의 피스톤(24)의 움직임을 제한하지 않음은 물론 필터링 유닛(110, 220)에 이물질이 걸려 있다가 다시 환자에게 주입되는 것을 방지할 수 있다.In addition, when the chemical liquid T is introduced into 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.
이상과 같이 본 발명에 따른 실시예를 살펴보았으며, 앞서 설명된 실시예 이외에도 본 발명이 그 취지나 범주에서 벗어남이 없이 다른 특정 형태로 구체화 될 수 있다는 사실은 해당 기술에 통상의 지식을 가진 이들에게는 자명한 것이다.As described above, the embodiments of the present invention have been described, and the fact that the present invention can be embodied in other specific forms without departing from the spirit or scope of the present invention can be embodied by those skilled in the art. It is self-evident to.
그러므로 상술한 실시예는 제한적인 것이 아니라 예시적인 것으로 여겨져야 하고, 이에 따라 본 발명은 상술한 설명에 한정되지 않고 첨부된 청구항의 범주 및 그 동등 범위 내에서 변경될 수도 있다.Therefore, the above-described embodiments should be regarded as illustrative rather than restrictive, and thus, the present invention is not limited to the above description and may be modified within the scope of the appended claims and their equivalents.
[부호의 설명][Description of the code]
T : 약액T: chemical
R : 이물질R: Foreign substance
10 : 니들 팁10: needle tip
12 : 니들부 14 : 장착부12: needle portion 14: mounting portion
20 : 주사기20: syringe
22 : 실린더 24 : 피스톤22 cylinder 24 piston
100 : 제1 실시예100: First embodiment
120 : 필터링 유닛120: filtering unit
122 : 필터부 124 : 회전결합부122: filter portion 124: rotary coupling portion
126 : 몸체부126 body
140 : 고정 유닛140: fixed unit
160 : 제한 유닛160: limit unit
200 : 제2 실시예200: second embodiment
220 : 필터링 유닛220: filtering unit
222 : 필터부 224 : 가이드부222: filter portion 224: guide portion
226 : 몸체부226 body
240 : 개폐 유닛240: opening and closing unit
260 : 제한 유닛260 limiting unit
본 발명은 의료 보건 산업분야 등에서 널리 이용될 수 있다.The present invention can be widely used in the medical health industry and the like.

Claims (15)

  1. 약액이 배출되는 주사기의 실린더 전방에 장착되는 니들 팁으로서,A needle tip mounted in front of the cylinder of the syringe in which the chemical liquid is discharged,
    상기 니들 팁 내벽에 장착되어, 상기 실린더 내부에 수용된 상기 약액이 상기 실린더 외부로 배출될 때 상기 실린더 내부에 상기 약액과 함께 수용된 이물질이 상기 실린더 외부로 배출되는 것을 방지하는 필터링 유닛을 포함하되,A filtering unit mounted on the needle tip inner wall 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 in the cylinder is discharged to the outside of the cylinder,
    상기 필터링 유닛은,The filtering unit,
    상기 약액이 상기 실린더 내부로 유입될 때 상기 약액의 유동을 방해하지 않도록, 상기 약액이 유동하는 방향과 동일한 방향으로 배치되거나, 또는 상기 약액이 유동하는 것을 안내하는 것을 특징으로 하는,Characterized in that it is disposed in the same direction as the direction in which the chemical liquid flows, or to guide the flow of the chemical liquid, so as not to interfere with the flow of the chemical liquid when the chemical liquid flows into the cylinder,
    여과 기능을 갖는 니들 팁.Needle tip with filtration function.
  2. 제1항에 있어서,The method of claim 1,
    상기 필터링 유닛은,The filtering unit,
    상기 이물질을 거르는 필터부; 및 상기 약액이 상기 실린더 내부로 유입될 때에는 상기 필터부를 상기 약액이 유동하는 방향과 동일한 방향으로 배치되도록 하고, 상기 약액이 상기 실린더 외부로 배출될 때에는 상기 필터부를 상기 약액이 유동하는 방향과 다른 방향으로 배치되도록 하는 회전결합부;를 포함하는 것을 특징으로 하는,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. Rotational coupling portion to be arranged in; characterized in that it comprises a,
    여과 기능을 갖는 니들 팁.Needle tip with filtration function.
  3. 제2항에 있어서,The method of claim 2,
    상기 필터링 유닛은,The filtering unit,
    상기 필터부 및 상기 회전결합부가 장착되어 상기 니들 팁 내벽에 밀착되는 고리 형상의 몸체부;을 더 포함하는 것을 특징으로 하는,And a ring-shaped body part mounted to the filter part and the rotary coupling part to be in close contact with the inner wall of the needle tip.
    여과 기능을 갖는 니들 팁.Needle tip with filtration function.
  4. 제3항에 있어서,The method of claim 3,
    상기 회전결합부는,The rotary coupling part,
    상기 약액의 유동방향에 수직되게 상기 몸체부를 가로지르는 힌지로 형성되고,Is formed into a hinge across the body portion perpendicular to the flow direction of the chemical liquid,
    상기 필터부는,The filter unit,
    상기 약액이 상기 실린더 내부로 유입될 때에는 상기 회전결합부를 중심으로 회전하여 서로 마주보게 접혀지고, 상기 약액이 상기 실린더 외부로 배출될 때에는 상기 회전결합부를 중심으로 회전하여 펼쳐지는 한 쌍의 반원 판으로 형성되는 것을 특징으로 하는,When the chemical liquid flows into the cylinder, it is rotated about the rotary coupling part and folded to face each other. Characterized in that formed,
    여과 기능을 갖는 니들 팁.Needle tip with filtration function.
  5. 제4항에 있어서,The method of claim 4, wherein
    상기 필터부는,The filter unit,
    상기 회전결합부를 중심으로 회전하여 서로 마주보게 접혀질 때, 서로 마주보는 한 쌍의 반원 판은 상기 약액의 유동방향과 평행하게 측면이 상기 실린더를 향하게 되는 것을 특징으로 하는,When the rotary coupling unit is rotated about the folding to face each other, the pair of semi-circular plate facing each other is characterized in that the side facing the cylinder in parallel with the flow direction of the chemical liquid,
    여과 기능을 갖는 니들 팁.Needle tip with filtration function.
  6. 제4항에 있어서,The method of claim 4, wherein
    상기 약액의 유동에 의해 상기 몸체부가 상기 니들 팁 내벽에서 이탈되는 것을 방지할 수 있도록, 상기 몸체부를 기준으로 상기 실린더가 위치하는 반대 방향에 상기 니들 팁 내벽으로부터 돌출 형성된 고정 유닛을 더 포함하는,And a fixing unit protruding from the needle tip inner wall in an opposite direction in which the cylinder is located with respect to the body portion so as to prevent the body portion from being separated from the needle tip inner wall by the flow of the chemical liquid.
    여과 기능을 갖는 니들 팁.Needle tip with filtration function.
  7. 제1항에 있어서,The method of claim 1,
    상기 필터링 유닛은,The filtering unit,
    상기 이물질을 거르는 필터부; 상기 필터부를 내장한 원통형의 몸체부; 및 상기 약액이 유동하는 방향과 동일한 방향으로 상기 몸체부의 외주면에 함몰 형성된 가이드부를 포함하되,Filter unit 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,
    상기 가이드부는,The guide unit,
    상기 약액이 상기 실린더 내부로 유입될 때에는 상기 몸체부가 상기 실린더가 위치하는 방향을 향해 이동하면서 개방되어 상기 약액이 상기 가이드부를 따라 유동하도록 안내하고, 상기 약액이 상기 실린더 외부로 배출될 때에는 상기 몸체부가 상기 실린더가 위치하는 반대 방향으로 이동하면서 폐쇄되어 상기 약액이 상기 필터부를 따라 유동하도록 안내하는 것을 특징으로 하는,When the chemical liquid flows into the cylinder, the body portion is opened 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 portion It is closed while moving in the opposite direction in which the cylinder is positioned to guide the chemical liquid flows along the filter unit,
    여과 기능을 갖는 니들 팁.Needle tip with filtration function.
  8. 제7항에 있어서,The method of claim 7, wherein
    상기 가이드부는,The guide unit,
    상기 몸체부가 이동할 때 개폐될 수 있도록, 상기 몸체부를 기준으로 상기 실린더가 위치하는 반대 방향에 상기 니들 팁 내벽으로부터 돌출 형성된 개폐 유닛에 대응하는 형상으로 함몰 형성되어, 개방될 때에는 상기 개폐 유닛으로부터 이탈되고 폐쇄될 때에는 상기 개폐 유닛과 접하게 되는 것을 특징으로 하는,It is recessed in a shape corresponding to the opening / 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 moved, and is separated from the opening and closing unit when opened. When closed, characterized in that the contact with the opening and closing unit,
    여과 기능을 갖는 니들 팁.Needle tip with filtration function.
  9. 제8항에 있어서,The method of claim 8,
    상기 몸체부는,The body portion,
    상기 실린더가 위치하는 반대 방향으로 이동할 때, 상기 개폐 유닛을 통과하여 상기 가이드부가 상기 계패 유닛과 접하지 않게 되는 것을 방지할 수 있도록 테이퍼진 것을 특징으로 하는,When the cylinder moves in the opposite direction to position, characterized in that the tapered so as to prevent the guide portion from coming into contact with the defeat unit through the opening and closing unit,
    여과 기능을 갖는 니들 팁.Needle tip with filtration function.
  10. 제1항 내지 제9항 중 어느 한 항에 따른 여과 기능을 갖는 니들 팁을 포함하는,A needle tip having a filtration function according to any one of claims 1 to 9,
    여과 기능을 갖는 주사기.Syringe with filtration function.
  11. 약액이 배출되는 실린더의 전단부 내벽에 마련되어, 상기 실린더 내부에 수용된 상기 약액이 상기 실린더 외부로 배출될 때 상기 실린더 내부에 상기 약액과 함께 수용된 이물질이 상기 실린더 외부로 배출되는 것을 방지하는 필터링 유닛을 포함하되,A filtering unit provided on an inner wall of the front end of the cylinder from which the chemical liquid is discharged, and preventing foreign substances contained together with the chemical liquid inside the cylinder from being discharged to the outside of the cylinder when the chemical liquid contained in the cylinder is discharged to the outside of the cylinder; Including,
    상기 필터링 유닛은,The filtering unit,
    상기 약액이 상기 실린더 내부로 유입될 때 상기 약액의 유동을 방해하지 않도록, 상기 약액이 유동하는 방향과 동일한 방향으로 배치되거나, 또는 상기 약액이 유동하는 것을 안내하는 것을 특징으로 하는,Characterized in that it is disposed in the same direction as the direction in which the chemical liquid flows, or to guide the flow of the chemical liquid, so as not to interfere with the flow of the chemical liquid when the chemical liquid flows into the cylinder,
    여과 기능을 갖는 주사기.Syringe with filtration function.
  12. 제11항에 있어서,The method of claim 11,
    상기 필터링 유닛은,The filtering unit,
    상기 이물질을 거르도록 한 쌍의 반원 판으로 형성된 필터부; 상기 필터부가 장착되어 상기 실린더의 전단부 내벽에 밀착되는 고리 형상의 몸체부; 및 상기 약액의 유동방향에 수직되게 상기 몸체부를 가로지르는 힌지로 형성된 회전결합부를 포함하되,A filter unit formed of a pair of semi-circle plates 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 rotation coupling part formed of a hinge crossing the body part perpendicular to the flow direction of the chemical liquid,
    상기 회전결합부는,The rotary coupling part,
    상기 약액이 상기 실린더 내부로 유입될 때에는 상기 반원 판을 상기 회전결합부를 중심으로 회전시켜 서로 마주보게 접히도록 하여 상기 필터부를 상기 약액이 유동하는 방향과 동일한 방향으로 배치되도록 하고, 상기 약액이 상기 실린더 외부로 배출될 때에는 상기 반원 판을 상기 회전결합부를 중심으로 회전시켜 펼쳐지도록 하여 상기 필터부를 상기 약액이 유동하는 방향과 다른 방향으로 배치되도록 하는 것을 특징으로 하는,When the chemical liquid flows into the cylinder, the semicircular plate is rotated about the rotary coupling part to be folded to face each other so that the filter part is disposed in the same direction as the chemical liquid flows, and the chemical liquid is in the cylinder. When discharged to the outside is characterized in that the semi-circular plate is rotated around the rotary coupling portion to unfold, so that the filter portion is arranged in a direction different from the direction in which the chemical liquid flows,
    여과 기능을 갖는 주사기.Syringe with filtration function.
  13. 제12항에 있어서,The method of claim 12,
    상기 약액의 유동에 의해 상기 몸체부가 상기 실린더의 전단부 내벽에서 이탈되는 것을 방지할 수 있도록, 상기 몸체부를 기준으로 상기 실린더가 위치하는 반대 방향에 상기 실린더의 전단부 내벽으로부터 돌출 형성된 고정 유닛; 및 상기 몸체부를 기준으로 상기 실린더가 위치하는 방향에 상기 실린더의 전단부 내벽으로부터 돌출 형성된 제한 유닛을 더 포함하는,A fixed unit protruding from an inner wall of the front end of the cylinder in an opposite direction in which the cylinder is located with respect to the body 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; And a limiting unit protruding from an inner wall of the front end portion of the cylinder in a direction in which the cylinder is located with respect to the body portion.
    여과 기능을 갖는 주사기.Syringe with filtration function.
  14. 제11항에 있어서,The method of claim 11,
    상기 필터링 유닛은,The filtering unit,
    상기 이물질을 거르는 필터부; 상기 필터부를 내장한 원통형의 몸체부; 및 상기 약액이 유동하는 방향과 동일한 방향으로 상기 몸체부의 외주면에 함몰 형성된 가이드부를 포함하되,Filter unit 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,
    상기 가이드부는,The guide unit,
    상기 몸체부가 이동할 때 개폐될 수 있도록, 상기 몸체부를 기준으로 상기 실린더가 위치하는 반대 방향에 상기 니들 팁 내벽으로부터 돌출 형성된 개폐 유닛에 대응하는 형상으로 함몰 형성되어,It is recessed and formed 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 moving,
    상기 약액이 상기 실린더 내부로 유입될 때에는 상기 몸체부가 상기 실린더가 위치하는 방향을 향해 이동하면서 상기 개폐 유닛으로부터 이탈됨에 따라 개방되어 상기 약액이 상기 가이드부를 따라 유동하도록 안내하고, 상기 약액이 상기 실린더 외부로 배출될 때에는 상기 몸체부가 상기 실린더가 위치하는 반대 방향으로 이동하면서 상기 개폐 유닛과 접하게 됨에 따라 폐쇄되어 상기 약액이 상기 필터부를 따라 유동하도록 안내하는 것을 특징으로 하는,When the chemical liquid flows into the cylinder, the body portion moves toward the direction in which the cylinder is located and is opened as it is separated from the opening and closing unit to guide the chemical liquid to flow along the guide portion, and the chemical liquid flows out of the cylinder. When it is discharged to the body portion is moved in the opposite direction in which the cylinder is located as it comes in contact with the opening and closing unit is characterized in that it guides the chemical liquid flows along the filter unit,
    여과 기능을 갖는 주사기.Syringe with filtration function.
  15. 제14항에 있어서,The method of claim 14,
    상기 몸체부는,The body portion,
    상기 실린더가 위치하는 반대 방향으로 이동할 때, 상기 개폐 유닛을 통과하여 상기 가이드부가 상기 계패 유닛과 접하지 않게 되는 것을 방지할 수 있도록 테이퍼진 것을 특징으로 하는,When the cylinder moves in the opposite direction to position, characterized in that the tapered so as to prevent the guide portion from coming into contact with the defeat unit through the opening and closing unit,
    여과 기능을 갖는 주사기.Syringe with filtration function.
PCT/KR2017/009920 2016-09-09 2017-09-08 Needle tip having filtering function and syringe WO2018048264A1 (en)

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KR1020160116624A KR101880602B1 (en) 2016-09-09 2016-09-09 Needle tip and syringe having filtration

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