WO2020197140A1 - Seringue munie d'un filtre - Google Patents

Seringue munie d'un filtre Download PDF

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Publication number
WO2020197140A1
WO2020197140A1 PCT/KR2020/003516 KR2020003516W WO2020197140A1 WO 2020197140 A1 WO2020197140 A1 WO 2020197140A1 KR 2020003516 W KR2020003516 W KR 2020003516W WO 2020197140 A1 WO2020197140 A1 WO 2020197140A1
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WO
WIPO (PCT)
Prior art keywords
injection
filter
syringe
protrusion
elastic
Prior art date
Application number
PCT/KR2020/003516
Other languages
English (en)
Korean (ko)
Inventor
김호임
Original Assignee
김호임
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 김호임 filed Critical 김호임
Priority to CN202080037632.9A priority Critical patent/CN113853225B/zh
Publication of WO2020197140A1 publication Critical patent/WO2020197140A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/3145—Filters incorporated in syringes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M2005/3117—Means preventing contamination of the medicament compartment of a syringe
    • A61M2005/3118—Means preventing contamination of the medicament compartment of a syringe via the distal end of a syringe, i.e. syringe end for mounting a 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/02—General characteristics of the apparatus characterised by a particular materials
    • A61M2205/0216—Materials providing elastic properties, e.g. for facilitating deformation and avoid breaking
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/75—General characteristics of the apparatus with filters
    • A61M2205/7545—General characteristics of the apparatus with filters for solid matter, e.g. microaggregates

Definitions

  • the present invention relates to a syringe having a filter that prevents the ampoule pieces that have flowed into the syringe through the injection needle from entering the human body by being filtered during the injection process when the injection solution of the ampoule is filled into the syringe.
  • the upper end of the ampoule (A: Ampoule) containing the injection solution is broken and opened, and the injection needle 3 is inserted into the opened part, (2) is retracted so that the injection solution in the ampoule (B) is filled into the inside of the cylinder (1), and then the injection needle (3) is inserted into the affected part of the patient, and the pusher (2) is advanced to the inside of the cylinder (1).
  • the existing injection solution is administered to the patient through the injection needle (3).
  • the top of the ampoule (B) is broken and opened, glass fragments scatter and part of it enters the inside of the ampoule (B), and the glass fragments that have entered the inside of the ampoule (B) are injected into the cylinder (1).
  • it When it is filled with, it is mixed into the interior of the syringe and is administered into the body together with the injection solution, so it has a fatal adverse effect on the patient.
  • the prior art described above is to insert the filter tip 10 when filling the injection solution into the interior of the cylinder 1, and when administering the injection solution from the syringe to the patient, after removing the filter tip 10, the injection needle is provided. Since the coupling pipe 20 must be coupled to the cylinder, the inconvenience in use is very large.
  • the present invention was conceived to solve the above problems, and an object thereof is to provide a syringe having a filter that does not require replacement of the filter tip during use.
  • the present invention is a syringe provided with a filter for filtering foreign substances contained in an injection solution within the injection needle coupling portion, wherein the filter has a rear opening and a body fixed to the inside of the needle coupling portion part; A filter plate attached to the rear opening of the body to filter out foreign substances contained in the injection solution; And a first elastic portion that is closely coupled between the front end of the body portion and the injection needle coupling portion and is elastically deformed inward by the injection pressure of the injection liquid to provide an injection liquid inflow passage to avoid the filter plate, and to the outside by the injection liquid discharge pressure. And a gasket having a gasket having a second elastic portion that is elastically deformed and provides an injection liquid discharge passage in communication with the filter plate.
  • the body portion of the present invention includes a protrusion protruding toward the front, and an injection liquid inlet hole formed at one side of the protrusion to communicate with the rear opening so as to communicate the filter plate and the gasket;
  • the second elastic part closely surrounds the outer circumferential surface of the protrusion and elastically deforms outward by the injection liquid discharge pressure, and the elastic body to discharge the injection liquid flowing into the gasket through the injection liquid inlet hole to the injection needle coupling part. It has an injection liquid discharge hole formed in.
  • the injection solution inlet hole of the present invention is formed in the center of the protrusion, and the protrusion is accommodated in the elastic body.
  • the protrusion of the present invention has an outer protrusion protruding forward and an inner protrusion protruding forward at a front end of the outer protrusion;
  • the injection liquid inlet hole is formed at the end of the outer protrusion;
  • the second elastic part has an elastic body that closely surrounds the outer circumferential surface of the outer protrusion and the inner protrusion, and is formed at the front end of the elastic body and is fitted in close contact with the inner protrusion, and is elastically deformed outward by the injection liquid discharge pressure. It has a discharge hole.
  • an inward contact end is formed in close contact with the outer surface of the elastically deformed injection liquid discharge hole along the inner circumferential surface of the injection needle coupling portion of the present invention.
  • an injection liquid introduced from the front is passed through the outer peripheral surface of the gasket of the present invention toward the first elastic part.
  • a fitting groove is formed on the bottom surface of the gasket of the present invention, and the body portion is formed with a fitting protrusion closely coupled to the fitting groove.
  • the first elastic portion of the present invention is formed to protrude along the rear edge of the gasket so as to be in close contact with the inner peripheral surface of the injection needle coupling portion.
  • the first elastic portion of the present invention is formed to be inclined outwardly toward the rear, and an inclined support surface on which the first elastic portion is supported is formed on an inner circumferential surface of the injection needle coupling portion.
  • a first inward stepped jaw is formed on the inner circumferential surface of the injection needle coupling portion of the present invention to limit the forward movement of the body portion.
  • a second inward stepped jaw is formed on the inner circumferential surface of the injection needle coupling portion of the present invention to limit the forward movement of the gasket.
  • a second groove is formed at the edge of the body portion of the present invention for passing the injection solution passing through the first elastic portion backward.
  • the protrusion of the body portion of the present invention has a recessed portion whose front end is inclined downward toward the injection hole, and a contact protrusion corresponding to the recessed portion is formed inside the second elastic portion.
  • the injection needle coupling portion of the present invention is a front end of a cylinder filled with an injection solution.
  • the injection needle coupling portion of the present invention is characterized in that it is a part of the body of the injection needle fixing tube that is coupled to the front end of the cylinder in which the injection solution is filled.
  • the injection needle coupling portion of the present invention is characterized in that it is a part of the body of the injection needle adapter coupled to the front end of the cylinder filled with the injection solution.
  • an injection solution inflow channel and an injection solution discharge channel in communication with the filter plate are formed through a gasket that is elastically deformed by a change in internal pressure that varies when the injection solution is introduced or discharged. Therefore, unlike the prior art, there is an effect of greatly improving the convenience in use that does not require changing the filter tip during use.
  • FIG. 1 is a view showing a typical syringe.
  • Figure 2 is a cross-sectional view of a conventional syringe equipped with a filter in use.
  • Figure 3 is a cross-sectional view of a syringe with a filter according to an embodiment of the present invention.
  • Figure 4 is an exploded perspective view of the body and the filter plate and gasket constituting the present invention.
  • Figure 5 is a cross-sectional view of the essential part of the present invention, a view showing a state in which the injection liquid flows into the cylinder through the filter.
  • FIG. 6 is a cross-sectional view of a main part of the present invention, showing a state in which the injection liquid filled in the cylinder is discharged to the outside of the cylinder through a filter.
  • FIG. 7 is a view showing another embodiment of the injection needle coupling unit constituting the present invention.
  • Figure 8 is a view showing another embodiment of the injection needle coupling unit constituting the present invention.
  • FIG. 9 is a cross-sectional view of a syringe equipped with a filter according to another embodiment of the present invention.
  • FIG. 10 is an exploded perspective view of a body part, a filter plate, and a gasket constituting a syringe with a filter according to another embodiment of the present invention.
  • FIG. 11 is a cross-sectional view of a main part of a syringe equipped with a filter according to another embodiment of the present invention, showing a state in which an injection solution passes through the filter and flows into a cylinder.
  • FIG. 12 is a cross-sectional view of a main part of a syringe equipped with a filter according to another embodiment of the present invention, showing a state in which the injection liquid filled in the cylinder is discharged to the outside of the cylinder through the filter.
  • injection needle coupling portion 110 first inward stepped jaw
  • protrusion 252a inner protrusion
  • depression 220 filter plate
  • a syringe with a filter includes a cylinder 1, a pusher 2 fitted inside the cylinder 1 so as to move back and forth. , It is installed in the injection needle coupling unit 100 and basically includes a filter 200 for filtering foreign substances contained in the injection solution.
  • the filter 200 is composed of a body 210, a filter plate 220 and a gasket 230.
  • the body part 210 has a rear opening 211 and is fitted to the inner circumferential surface of the injection needle coupling part 100.
  • the center of the body 210 communicates with a protrusion 212 protruding toward the front and a rear opening 211 at the center of the protrusion 212 to communicate the filter plate 220 and the gasket 230
  • the injection solution inlet hole 213 is formed.
  • a first inward stepped jaw 110 may be formed on the inner circumferential surface of the injection needle coupling part 100 to limit the forward movement of the body part 210.
  • the filter plate 220 is attached to the rear opening 211 of the body part 210 to filter foreign substances contained in the injection solution flowing into the cylinder 1 through the rear opening 211.
  • the gasket 230 is closely coupled between the protrusion 212 of the body portion 210 and the injection needle coupling portion 100.
  • the gasket 230 is elastically deformed inward by the inflow pressure of the injection liquid, and a first elastic part 231 providing an injection flow passage to avoid the filter plate 220, and elastically deformed outward by the injection liquid discharge pressure.
  • a second elastic part 232 is provided to provide an injection liquid discharge passage in communication with the filter plate 220.
  • the first elastic part 231 is formed to protrude outward along the rear edge of the gasket 230 so as to be in close contact with the inner circumferential surface of the injection needle coupling part 100.
  • the first elastic part 231 is preferably formed to be inclined toward the rear so that it can be easily elastically deformed inward by the inflow pressure of the injection solution.
  • an inclined support surface 120 on which the first elastic portion 231 is supported is formed on the inner circumferential surface of the injection needle coupling unit 100, and the inclined support surface 120 is used when the injection solution is discharged.
  • the first elastic part 231 is in close contact with the first elastic part 231 to prevent the injection liquid from being discharged forward through the first elastic part 231 while preventing elastic deformation of the first elastic part 231 in the opposite direction by the discharge pressure. do.
  • the inclined support surface 120 forms an injection liquid inflow passage that avoids the filter plate 220 while being spaced apart from the first elastic part 231 when the injection liquid is introduced.
  • a second inward stepped step 130 may be formed on the inner circumferential surface of the injection needle coupling part 100 to limit the forward movement of the gasket 230.
  • the second elastic part 232 accommodates the protrusion 212 therein and contains an elastic body 232a closely surrounding the outer circumferential surface of the protrusion 212, and an injection solution flowing through the injection solution inlet hole 213.
  • An injection solution discharge hole (232b) formed on the side of the elastic body (232a) is provided so as to be discharged to the injection needle coupling portion (100).
  • the elastic body (232a) is formed to be in close contact with the needle coupling portion 100 to maintain a stable support state without flowing in the needle coupling portion 100.
  • the injection solution discharge hole (232b) is the elastic body (232a) so that the injection solution passing through the injection solution discharge hole (232b) is smoothly discharged to the front end of the open elastic body rather than the side in close contact with the injection needle coupling portion (100). It is formed to communicate with the shear of the.
  • a first groove 233 is formed at the edge of the gasket 230 to communicate with the injection liquid discharge hole 232b.
  • the first groove 233 is formed behind the injection liquid discharge hole 232b to discharge the injection liquid.
  • the injection solution flowing into the hole 232b is passed through the first elastic part 231. It is preferable that the first groove portion 233 is formed in plural at regular intervals along the edge of the gasket 230 for smooth and rapid passage of the injection solution.
  • a second groove portion 214 through which the injection solution passed through the first elastic portion 231 passes backward is formed at the edge of the body portion 210. It is preferable that the second groove portion 214 is formed in plural at regular intervals along the edge of the body portion 210 for smooth and rapid passage of the injection solution.
  • a fitting protrusion 234 is formed along the outside of the protrusion 212 of the body part 210 in order to increase the bonding force between the body part 210 and the gasket 230, and the gasket 230 It is preferable to form an annular fitting groove 215 that is fitted into the fitting protrusion 234 on the bottom surface.
  • a new injection solution inflow path that communicates with the filter plate 220 is derived by the gap between the fitting protrusion 234 and the fitting groove 215, but the newly derived injection solution inflow path has a plurality of bent shapes. Actual injection solution is not introduced.
  • the front end of the protrusion 212 of the body part 210 has a depression 216 inclined downward toward the injection liquid inlet 213, and the depression 216 inside the second elastic part 232 ) Corresponding to the contact protrusion 235 may be formed.
  • the syringe having the filter of the present invention configured as described above is used as follows.
  • the user breaks the upper end of the ampoule containing the injection solution and opens it, inserts the injection needle into the opened part, and then retreats the pusher 2, as shown in FIG. 5, when the pusher 2 moves backward.
  • the first elastic portion 231 is elastically deformed inward by the lowered internal pressure of the injection needle coupling portion 100.
  • the filter plate 220 consisting of the injection liquid discharge hole 232b of the gasket 230, the first groove 233, the first elastic part 231, and the second groove 214 of the body 210 An injection liquid inflow passage to be avoided is formed, and the injection liquid inside the ampoule including foreign substances including fine ampoule pieces is smoothly introduced into the interior of the cylinder 1 through the injection liquid inflow passage.
  • the contact protrusion 235 of the second elastic part 232 is caused by the internal pressure of the injection needle coupling part 100 that decreases when the push rod 2 moves backward. Since the injection solution flows into the gasket 230 in the process of passing through the injection solution discharge hole 232b, it flows into the injection solution inlet hole 213 of the body 210 It doesn't work.
  • the body part 210 is formed by the first inward step 110 and the second inward step 130.
  • the forward movement of the gasket 230 is blocked, the injection liquid in the cylinder 1 passes through the filter plate 220 and flows into the injection liquid inlet hole 213 of the body part 210.
  • the internal pressure of the second elastic portion 232 of the gasket 230 increases, and thereby the elastic body 232a of the second elastic portion 232 is elastically deformed outward.
  • the elastic body 232a When the elastic body 232a is elastically deformed outward, the depression 216 and the contact protrusion 235 are spaced apart, and at the same time, the inner circumferential surface of the elastic body 232a and the protrusion 212 of the body 210 are spaced apart from each other and The discharge hole 232b is opened.
  • an injection liquid discharge passage comprising the filter plate 220, the injection liquid inflow hole 213 and the injection liquid discharge hole 232b is formed, and foreign substances including the ampoule pieces contained in the injection liquid along the injection liquid discharge passage are removed from the filter plate. Filtered by 220, only the clean injection solution containing no foreign substances is discharged to the needle side.
  • the injection needle coupling portion 100 may be the front end of the cylinder 1, as shown in Figure 7, may be a part of the body of the injection needle fixing tube (B) coupled to the front end of the cylinder, shown in Figure 8 As shown, it may be a part of the body of the injection needle adapter C that is coupled to the front end of the cylinder.
  • the needle coupling portion 100 When the needle coupling portion 100 is a part of the body of the needle fixing tube B or the needle adapter C, the needle coupling portion 100 is the front end of the cylinder. Since only the installation location is different, the rest of the configuration and operation are all the same, so a detailed description thereof will be omitted.
  • the auxiliary coupling pipe 300 having an open front and rear sides inside the injection needle coupling portion 100 is provided. It may be additionally inserted.
  • the auxiliary coupling pipe 300 reduces the inner diameter of the needle coupling pipe 100 so that when a cylinder having a small outer diameter is coupled to the needle coupling portion 100, the needle coupling portion 100 and the cylinder having a small outer diameter It helps to establish a tight bond.
  • annular locking projection 310 is formed at the front end of the auxiliary coupling pipe 300 so as not to be separated from the injection needle fixing pipe (B) and the injection needle adapter (C).
  • annular locking projection D corresponding to the locking projection 310 should be formed on the inner circumferential surfaces of the injection needle fixing tube B and the injection needle adapter C.
  • the injection needle adapter (C) is composed of an upper body (C1) fastened to the injection needle and a lower body (C2) fitted to the upper body (C1).
  • the upper body An annular fixing groove (E) is formed on the inner circumferential surface of the upper body (C1) to prevent separation after the C1 and the lower body (C2) are fitted, and an annular fixing protrusion is formed on the outer circumferential surface of the lower body (C2) corresponding thereto. It is preferred that F) is formed.
  • rotation preventing protrusions (G) are formed on both sides of the outer circumferential surface of the lower body (C2) to prevent rotation in the left and rear direction in the state in which the upper body (C1) and the lower body (C2) are combined, and the corresponding upper body It is preferable that both sides of the inner circumferential surface of (C1) are formed with locking projections 101 that interfere with the rotation preventing projections (G).
  • FIG. 9 is a cross-sectional view of a syringe with a filter according to another embodiment of the present invention
  • FIG. 10 is an exploded perspective view of a body part, a filter plate, and a gasket constituting a syringe with a filter according to another embodiment of the present invention.
  • the protrusion 252 of the body part 250 is an external protrusion 252a protruding toward the front, and the external An inner protrusion 252b protruding forward may be provided at the front end of the protrusion 252a.
  • the injection solution inlet hole 213 is formed at the end of the outer protrusion 252a.
  • the second elastic portion 262 is formed at the front end of the elastic body (262a) and the elastic body (262a) that closely surrounds the outer circumferential surfaces of the outer protrusion (252a) and the inner protrusion (252b). It may be provided with an injection liquid discharge hole (262b) that is fitted in close contact with (252b).
  • first elastic part 261, the first groove 263, the second groove 254, the fitting groove 264, the fitting protrusion 255, the inclined support surface 120, and the first inward end may be equally applied.
  • the first elastic portion 261 is elastically deformed inward by the internal pressure of the injection needle coupling portion 100, which decreases when the push rod 2 moves backward.
  • the injection solution in the cylinder 1 passes through the filter plate 220 to the body part 250. It is introduced into the injection liquid inlet hole 253 and discharged into the gasket 260. As a result, the internal pressure of the second elastic portion 262 of the gasket 260 increases, and thereby the elastic body 262a is elastically deformed outward, thereby opening the injection liquid discharge hole 262b.
  • an injection liquid discharge passage comprising the filter plate 220, the injection liquid inlet hole 263 and the injection liquid discharge hole 262b is formed, and foreign substances including the ampoule pieces contained in the injection liquid along the injection liquid discharge passage are removed from the filter plate. Filtered by 220, only the clean injection solution containing no foreign substances is discharged to the needle side.
  • An inward contact end 140 may be formed inside the injection needle coupling part 100 so as to closely adhere along the outer surface of the elastically deformed injection liquid discharge hole 262b.
  • the injection solution discharged from the injection solution discharge hole 262b by the inward contact end 140 may be smoothly discharged forward toward the injection needle without flowing backward.
  • the inner protrusion 252b occupies a significant portion of the inner space of the needle coupling portion 100, the injection solution remaining in the needle coupling portion 100 is minimized so that a quantitative injection liquid can be injected. do.

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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 seringue munie d'un filtre qui, pendant un processus d'injection, filtre des morceaux d'ampoule introduits dans la seringue par l'intermédiaire d'une aiguille de seringue lorsque la seringue est remplie par un fluide provenant d'une ampoule injectable, empêchant ainsi les pièces d'entrer dans un corps humain. La présente invention concerne une seringue pourvue d'un filtre qui filtre, dans une partie de raccordement d'aiguille de seringue (100), des impuretés incluses dans un fluide d'injection, le filtre (200) comprenant : une partie de corps (210) qui est dotée d'une ouverture arrière (211) et qui est insérée de manière fixe dans la partie de raccordement d'aiguille de seringue ; une plaque de filtre (220) qui est fixée à l'ouverture arrière de la partie de corps et qui filtre des impuretés contenues dans le fluide d'injection ; et un joint d'étanchéité (230) qui comprend une première partie élastique (231) qui est étroitement reliée entre l'extrémité avant de la partie de corps et la partie de raccordement d'aiguille de seringue, et qui fournit une voie d'entrée de fluide d'injection qui évite la plaque filtrante, tout en étant élastiquement déformée vers l'intérieur par la pression d'entrée de fluide d'injection, et une seconde partie élastique (232) qui fournit une voie d'évacuation de fluide d'injection en communication avec la plaque filtrante, tout en étant élastiquement déformé vers l'extérieur par la pression d'évacuation du fluide d'injection.
PCT/KR2020/003516 2019-03-22 2020-03-13 Seringue munie d'un filtre WO2020197140A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202080037632.9A CN113853225B (zh) 2019-03-22 2020-03-13 配备过滤器的注射器

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020190032774A KR102042377B1 (ko) 2019-03-22 2019-03-22 필터를 구비한 주사기
KR10-2019-0032774 2019-03-22

Publications (1)

Publication Number Publication Date
WO2020197140A1 true WO2020197140A1 (fr) 2020-10-01

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KR (1) KR102042377B1 (fr)
CN (1) CN113853225B (fr)
WO (1) WO2020197140A1 (fr)

Cited By (1)

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CN113249200A (zh) * 2021-06-01 2021-08-13 青岛速知科技有限公司 细胞提取结构及细胞提取仪

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KR102554972B1 (ko) * 2021-04-01 2023-07-11 정재은 주사기용 필터기구

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KR101891787B1 (ko) * 2018-04-23 2018-08-27 (주)상아프론테크 필터 주사기

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CN113249200A (zh) * 2021-06-01 2021-08-13 青岛速知科技有限公司 细胞提取结构及细胞提取仪

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