KR20150000577A - Syringe having dual micro filters - Google Patents
Syringe having dual micro filters Download PDFInfo
- Publication number
- KR20150000577A KR20150000577A KR1020130072800A KR20130072800A KR20150000577A KR 20150000577 A KR20150000577 A KR 20150000577A KR 1020130072800 A KR1020130072800 A KR 1020130072800A KR 20130072800 A KR20130072800 A KR 20130072800A KR 20150000577 A KR20150000577 A KR 20150000577A
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- KR
- South Korea
- Prior art keywords
- hub
- filter
- injection
- microfilter
- protective cap
- Prior art date
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/165—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
- A61M5/3145—Filters incorporated in syringes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/34—Constructions for connecting the needle, e.g. to syringe nozzle or needle hub
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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 syringe having a double microfilter which can be safely used by maximizing the filtering efficiency of fine debris generated in an ampule or vial by disposing a microfilter.
The present invention relates to a syringe body including a piston inserted into a cylinder part and a cylinder part; A hub coupled to a distal end of the cylinder; An injection needle having one end coupled to a distal end of the hub; A protective cap including a first portion surrounding the needle and a second portion coupled to the hub; A first micro-filter disposed between the cylinder and the hub; And a second microfilter disposed inside the protective cap.
Description
The present invention relates to a syringe, and more particularly, to a syringe having a microfilter in which a microfiber piece of ampoule mixed with an injection liquid is injected from a syringe (for example, a vial in which an opening is sealed by an ampoule or a rubber stopper) And to a syringe having a dual microfilter capable of filtering an injected liquid when the injected liquid is discharged from a syringe.
BACKGROUND ART [0002] Syringes commonly used in the market today include a syringe body composed of a cylinder part and a piston part so that an injection liquid can be charged, and a needle provided at the tip of the syringe body.
Such conventional syringes are used to collect injections from ampoules or vials through injection needles in order to administer injections (drugs) to a human body. Many minute debris (fine glass debris or fine rubber debris) There is a problem that it is sucked into the part. In particular, the larger the hole of the injection needle, the greater the suction amount of the inhaled micro debris.
The above-mentioned micro-debris may cause not only necrosis of body tissue but also pulmonary granuloma, phlebitis and thrombosis when it is introduced into the body together with the injection solution. Further, if left untreated, micro-paralysis, general paralysis, heart attack or cancer There was a fatal problem.
1, the
In order to inject the injection solution into the patient with the
However, as shown in FIG. 2, a large number of minute glass fragments K1 generated when breaking the neck a1 of the ampule glass bottle A are scattered, and a part thereof flows into the injection solution b of the ampule glass bottle A . In this case, a plurality of fine glass fragments K1 which have entered into the injection liquid b are mixed with the injection liquid b into the
3, when the
In order to solve such a problem, Korean Patent Laid-Open Publication No. 10-2005-0108169 proposes a syringe having a filter for protecting the injection needle from being wrapped around the outer side of the fixing member and for preventing foreign matter from entering and antibacterial treatment have. The syringe having such a configuration filters the glass particles of the ampule by the filter when the injection liquid is sucked, but the injection process is very troublesome because the injection is required after removing the filter with the ampule glass particles when the injection is made to the patient.
In addition, in Korean Patent No. 10-981586, the safety filter tip equipped with the filter is fixed to the
Meanwhile, a process in which a conventional filter needle (Korean Patent Laid-Open No. 10-1012-0087587) is used by a user such as a nurse goes through the following nine steps.
(1) remove the package, (2) remove the safety cap, (3) inhale the injection, (4) remove the filter needle, (5) remove the safety needle from the needle, (6) insert the needle into the syringe, ⑧ Separate the injection needle, ⑨ Discard.
In order to solve the problem of this process, the filter cap method of Korean Patent Laid-Open No. 10-2005-0108169, which is a filter cap method, is used by a user such as a nurse in the following seven steps.
(1) remove the packaging, (2) remove the safety cap, (3) inhale the injection, (4) remove the filter cap, (5) inject, (6) remove the needle, and (7) discard.
This filter cap method is improved than the filter needle, and the use is simplified by reducing the number of steps. In addition, there is a possibility of contamination or needle sticking in the process of replacing the needle.
However, such a conventional filter cap method is problematic and needs to be improved.
Conventionally, a filter cap is fixedly attached to a penetration portion of a housing by a jaw protruding from a filter, and has a portion in close contact with the injection needle hub of the injection needle assembly to form a negative pressure. However, in the conventional filter cap, the thickness of the filter becomes thicker in order to prevent the filter from being pulled out of the jaw by an insertion method in which the filter is fixed by the jaws. There is a problem that a large amount of force is required for the suction because the filter is thick. The diameter of the penetration portion is large and the outer diameter of the filter cap is so large that the hole and the outer diameter of the ampoule become similar to each other, thereby causing a problem of insertion and increasing the possibility of contamination. In addition, since the volume of the closed space inside the housing becomes large due to close contact with the needle hub, it becomes difficult to form a negative pressure, which makes the injection of the injection difficult.
Moreover, since the filter is fixed by the inner jaw as well as the above-described problem of the use, the manufacturing process becomes complicated. In order to mount the filter on the inside, the housing is made of two or more parts rather than one part, so it is necessary to take the method of assembling the filter after mounting it, or it is necessary to separate the jaws to fix the filter after the filter is inserted into the housing have.
On the other hand, Korean Patent No. 10-1243396 relates to a filter cap, in which an injection fluid inlet is formed on the entire surface of the injection needle cap, and a filter is attached to this communication portion by a melt adhesion method. However, such a conventional technique requires a process of melting and bonding a small membrane filter to the tip of the cap. Further, since the filter is exposed to external pollution and the tip of the cap is sharpened with a diagonal line, there is a problem that it can not be used as a filter needle for a vial because a rubber cap such as a vial can not be easily pierced with a plastic cap. As a result, there is a problem that the user has to use the filter needle separately for the ampoule and the vial, and that there is a problem of confusion.
In order to solve the above problems, it is an object of the present invention to provide a syringe having a double microfilter which can be safely used by maximizing the filtering efficiency of micro-fragments generated in an ampule or vial by disposing a micro- .
To achieve the above objects, there is provided a syringe main body including a piston inserted into a cylinder part and a cylinder part; A hub coupled to a distal end of the cylinder; An injection needle having one end coupled to a distal end of the hub; A protective cap including a first portion surrounding the needle and a second portion coupled to the hub; A first micro-filter disposed between the cylinder and the hub; And a second microfilter disposed on the inner side of the protective cap.
The first micro-filter is fixed to the inner side of the hub and can be supported at the tip of the cylinder.
The second micro-filter may have one side fixed to the inner tip of the protective cap and the other side fixed to the hook protrusion spaced from the inner tip of the protective cap.
The first microfilter and the second microfilter may be formed into blocks through plastic working of the porous plastic granules. In this case, it is preferable that the first micro-filter and the second micro-filter are formed to filter particles of 5 m or more.
The hub may be fixedly secured such that its outer circumferential surface is in close contact with the inner circumferential surface of the second portion of the protective cap. In this case, the inner diameter of the first portion of the protective cap is preferably 1.1 to 1.3 times the outer diameter of the injection needle.
A cut-off handle is formed at an end of the first portion of the protective cap. When the handle is cut off from the first portion, the injection liquid inflow hole formed at the tip of the first portion can be opened. In this case, it is preferable that the distal end portion of the first portion cut out of the handle portion is formed of an oblique edge portion. It is preferable that the outer diameter of the injection liquid inflow passage is 4 mm or less.
As described above, according to the present invention, there is an advantage that the reliability of the product can be improved by maximizing the filtering efficiency of the micro-fragment of the ampule or vial through the filter disposed in the protective cap and the filter disposed in the hub.
In addition, the present invention is characterized in that a simple disc-shaped micro filter is fixedly attached to the hub and the protective cap, respectively, so that a simple and robust filter fixing can be performed without any additional melting operation, ultrasonic operation, So that the efficiency of fabrication can be increased.
Furthermore, the present invention can reduce the user's scanning process to six steps of removing the packaging, removing the handle of the protective cap, sucking the injection, removing the protective cap, injecting the ink, It is possible to reduce the consumption of excessive needles because there is no need to distinguish between injection needles for injecting injections and injection needles for injecting injections as in the prior art by simultaneously injecting injections and injecting injections with a single injection needle, A cost saving effect can be obtained.
Further, according to the present invention, a micro filter is attached to a protective cap, which is a lid of a needle, so that a user can secure the safety of a user by reducing the risk of being stuck in a needle of a metal material when injecting an injection liquid into a cylinder portion of a syringe.
1 is a schematic cross-sectional view showing a conventional syringe.
Fig. 2 is a schematic view showing a state where fine glass fragments generated when breaking the neck of an ampule are mixed with an injection solution. Fig.
FIG. 3 is a schematic view showing a state in which a micro-rubber debris generated when a rubber stopper of a vial is pierced with a needle is mixed with an injection solution.
4 is an exploded perspective view of a syringe according to an embodiment of the present invention.
5 is an end view of the syringe according to an embodiment of the present invention.
6 is an enlarged photograph showing the filter shown in Fig.
FIGS. 7A through 7D are schematic views illustrating a process of using a syringe according to an embodiment of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a configuration of a syringe having a dual microfilter according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
Referring to FIG. 4, a
Referring to FIG. 5, the syringe body 110 includes a
The
The
In this case, the first micro-filter F1 may have a substantially disc shape. As shown in FIG. 6, the first microfilter (F1) is formed by plastic molding the porous plastic granules and is chemically stable, so that it does not react with the injection liquid (b) and is harmless to the human body. The first microfilter F1 filters the fine glass fragments K1 of the ampule A and the fine rubber fragments K2 of the vial C of 5 mu m or more in consideration of the fact that the diameter of the capillary is 10 mu m, It is preferable to be formed so as to be able to do so.
When the
The
The
In the
The second microfilter F2 is inserted into the inner tip of the
The second micro-filter F2 is preferably made of the same material as the first micro-filter F1.
The second microfilter F2 may filter the injection fluid together with the first microfilter F1 to maximize the filter efficiency. Further, since the first and second microfilters F1 and F2 are made of a porous material, the flow resistance to the injection liquid can be reduced. Accordingly, the injection liquid can easily flow into the
In the
Further, the
Accordingly, when the user pulls the
In this case, the
The
The
Hereinafter, with reference to FIGS. 7A to 7D, the process of using a syringe having a dual microfilter according to an embodiment of the present invention will be described in sequence.
First, the
7B, the
At this time, the injection liquid b flows into the injection
Thereafter, the
7D, the injected liquid b charged into the
In this case, since the injection liquid (b) is discharged through the clean first microfilter (F1) without being discharged through the second microfilter (F2) in which the minute debris is caught, the flow resistance of the injection liquid (b) ) Can be smoothly performed.
Meanwhile, when the injection liquid b contained in the vial C is sucked through the
When the rubber stopper D is pierced by the
In the case of injecting injected liquid b injected into the
As described above, according to the present invention, the first and second microfilters F1 and F2 are disposed at intervals to double filter the injection liquid (b) to perfectly satisfy the basic filtration function.
In addition, by using the
In addition, according to the present invention, the first and second microfilters formed of the filter block, which is an injection product, are assembled into the
As described above, the present invention has been described by reference to the preferred embodiments and drawings, but it should be understood that the present invention is not limited to these embodiments, and various changes and modifications may be made without departing from the spirit and scope of the present invention by those skilled in the art. It will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the appended claims.
111: cylinder part 112: neck part
113: piston 115: plunger
130:
150: Needle 170: Protective cap
171: first part 173: second part
175: Syringe inflow passage 176:
F1: first micro filter F2: second micro filter
Claims (10)
A hub coupled to a distal end of the cylinder;
An injection needle having one end coupled to a distal end of the hub;
A protective cap including a first portion surrounding the needle and a second portion coupled to the hub;
A first micro-filter disposed between the cylinder and the hub; And
And a second microfilter disposed inside the protective cap.
Wherein the first micro-filter is fixed to the inside of the hub and is supported at the tip of the cylinder.
Wherein the second microfilter is fixed at one end to the inner tip of the protective cap and the other end is fixed to the engagement protrusion spaced from the inner tip of the protective cap.
Wherein the first microfilter and the second microfilter are formed by block-forming porous plastic granules through plastic forming.
Wherein the first micro-filter and the second micro-filter filter particles having a size of 5 mu m or more.
Wherein the hub is fixed by interference fit so that its outer circumferential surface is in close contact with the inner circumferential surface of the second portion of the protective cap.
Wherein an inner diameter of the first portion of the protective cap is 1.1 to 1.3 times the outer diameter of the injection needle.
Wherein a cut-off handle portion is formed at an end of the first portion of the protective cap, and when the handle portion is cut off from the first portion, the injection liquid inlet opening formed at the tip of the first portion is opened.
Wherein the tip portion of the first portion where the handle portion is cut off is made of an oblique edge portion.
And the outer diameter of the injection liquid inflow passage is 4 mm or less.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020130072800A KR101551400B1 (en) | 2013-06-25 | 2013-06-25 | Syringe having dual micro filters |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020130072800A KR101551400B1 (en) | 2013-06-25 | 2013-06-25 | Syringe having dual micro filters |
Publications (2)
Publication Number | Publication Date |
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KR20150000577A true KR20150000577A (en) | 2015-01-05 |
KR101551400B1 KR101551400B1 (en) | 2015-09-09 |
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KR1020130072800A KR101551400B1 (en) | 2013-06-25 | 2013-06-25 | Syringe having dual micro filters |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016208922A1 (en) * | 2015-06-23 | 2016-12-29 | 주식회사 아모라이프사이언스 | Safety filter, manufacturing method therefor, and syringe having safety filter |
WO2018230913A1 (en) * | 2017-06-14 | 2018-12-20 | 박종은 | Dual needle syringe for preventing infection |
EP3348297A4 (en) * | 2015-09-09 | 2019-04-17 | Ra, Yong-Kuk | Syringe with filter |
KR102524999B1 (en) * | 2022-10-18 | 2023-04-24 | 이상진 | Multipurpose Injection Needle |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100893365B1 (en) * | 2006-04-12 | 2009-04-17 | 김용무 | Needle connecting device, filter device and medicine injection apparatus comprising the filter device |
-
2013
- 2013-06-25 KR KR1020130072800A patent/KR101551400B1/en active IP Right Grant
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016208922A1 (en) * | 2015-06-23 | 2016-12-29 | 주식회사 아모라이프사이언스 | Safety filter, manufacturing method therefor, and syringe having safety filter |
EP3348297A4 (en) * | 2015-09-09 | 2019-04-17 | Ra, Yong-Kuk | Syringe with filter |
AU2016320415B2 (en) * | 2015-09-09 | 2019-08-08 | Yong-Kuk RA | Filtering Syringe |
WO2018230913A1 (en) * | 2017-06-14 | 2018-12-20 | 박종은 | Dual needle syringe for preventing infection |
KR20180136299A (en) * | 2017-06-14 | 2018-12-24 | 박종은 | Double Needle Syringe With Reduced Infection |
CN110997045A (en) * | 2017-06-14 | 2020-04-10 | 朴锺殷 | Anti-infection double-needle injector |
JP2020523122A (en) * | 2017-06-14 | 2020-08-06 | パク、ジョンウンPARK, Jong−Eun | Syringe with double needle for infection prevention |
CN110997045B (en) * | 2017-06-14 | 2022-06-03 | 朴锺殷 | Anti-infection double-needle injector |
US11369753B2 (en) | 2017-06-14 | 2022-06-28 | Jong-Eun Park | Dual needle syringe for preventing infection |
KR102524999B1 (en) * | 2022-10-18 | 2023-04-24 | 이상진 | Multipurpose Injection Needle |
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Publication number | Publication date |
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KR101551400B1 (en) | 2015-09-09 |
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