KR200482070Y1 - Nasal injection spray device having filter - Google Patents

Nasal injection spray device having filter Download PDF

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Publication number
KR200482070Y1
KR200482070Y1 KR2020150002303U KR20150002303U KR200482070Y1 KR 200482070 Y1 KR200482070 Y1 KR 200482070Y1 KR 2020150002303 U KR2020150002303 U KR 2020150002303U KR 20150002303 U KR20150002303 U KR 20150002303U KR 200482070 Y1 KR200482070 Y1 KR 200482070Y1
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KR
South Korea
Prior art keywords
drug
flow path
body portion
disposed
injection
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KR2020150002303U
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Korean (ko)
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KR20160003613U (en
Inventor
김선웅
노현
Original Assignee
김선웅
노현
(주)두원메디텍
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Priority to KR2020150002303U priority Critical patent/KR200482070Y1/en
Publication of KR20160003613U publication Critical patent/KR20160003613U/en
Application granted granted Critical
Publication of KR200482070Y1 publication Critical patent/KR200482070Y1/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
    • A61M11/00—Sprayers or atomisers specially adapted for therapeutic purposes
    • A61M11/001—Particle size control
    • A61M11/003—Particle size control by passing the aerosol trough sieves or filters
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H35/00—Baths for specific parts of the body
    • A61H35/04—Baths for specific parts of the body for the nose

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  • Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Engineering & Computer Science (AREA)
  • Hematology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Dispersion Chemistry (AREA)
  • Anesthesiology (AREA)
  • Chemical & Material Sciences (AREA)
  • Otolaryngology (AREA)
  • Epidemiology (AREA)
  • Pain & Pain Management (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Rehabilitation Therapy (AREA)
  • Biomedical Technology (AREA)

Abstract

A nasal drug injection device is provided that is equipped with a filter to prevent side effects due to foreign matter injection. The nasal drug injection device according to the present invention comprises a body portion having a front end inserted into a nasal cavity and a rear end exposed to the outside of the nasal cavity, wherein a flow path through which a liquid drug moves is formed; A drug inlet disposed at a rear end of the body portion and connected to a discharge port of the drug infusion device; A spray nozzle unit disposed at a front end of the body and spraying the drug through the drug inlet and the flow path into the nasal cavity; And a porous filter disposed between the drug inlet and the flow path to filter foreign matters mixed in the drug.

Description

≪ Desc / Clms Page number 1 > NASA INJECTION SPRAY DEVICE HAVING FILTER < RTI ID =

The present invention relates to a nasal spray apparatus, and more particularly, to a nasal spray apparatus for injecting drugs directly into a nasal cavity through a spray nozzle so as to prevent foreign substances from being injected into the nasal cavity, .

The intranasal drug injection device is a device that injects a liquid drug into the nasal cavity to be directly absorbed in the capillary blood vessel. The injection device in the nasal cavity is used to inject medicines for various purposes such as anti-convulsions, sedation, detoxification, or pain control, as well as injecting medicines for the treatment of rhinitis or for the relief of rhinitis symptoms.

In order to maximize the dosing effect of these drugs, they should be absorbed quickly and effectively in the nasal cavity. To this end, it is desirable that the drug delivery device in the nasal cavity should deliver the drug evenly throughout the nasal cavity, and inject a dose that is temporarily absorbable so that the drug does not flow to the neck.

In addition, another important thing is prevention of side effects. The aforementioned drugs are often stored and stored in a glass ampoule, which tends to result in a very small size of glass powder in the process of picking up the glass ampoule. When such a glass powder is injected into the nasal cavity in a state of being mixed with the drug, it can invade side effects such as infiltration into blood vessels, mucous membranes, skin tissues, or the like, or dilating blood vessels. However, in the conventional nasal drug injection device, there is a risk of side effects because there is no means for removing foreign substances such as glass powder in advance.

delete

Korean Utility Model Registration No. 20-0355181 (June 25, 2004) Korean Patent Publication No. 10-2013-0104060 (2013.09.25) Korean Patent Publication No. 10-2002-0063417 (Aug. 3, 2002)

In order to solve the above-described problem, the present invention is directed to a device for filtering a foreign substance such as glass powder by arranging a filter in a path for transferring a drug from a mechanism for injecting a drug into a spraying nozzle such as a syringe, An object of the present invention is to provide an intranasal drug injection device having a filter for injecting a drug evenly into the nasal cavity using a pressure to be injected.

The nasal drug injection device according to the present invention has a front end inserted into the nasal cavity and a rear end exposed to the outside of the nasal cavity, and a body in which a flow path through which the liquid drug moves is formed. part; A drug inlet disposed at a rear end of the body portion and connected to a discharge port of the drug infusion device; A spray nozzle unit disposed at a front end of the body and spraying the drug through the drug inlet and the flow path into the nasal cavity; And a porous filter disposed between the drug inlet and the flow path to filter foreign matters mixed in the drug.

The porous filter may be a plastic foam or a membrane filter having a pore diameter of 0.1 mu m to 6 mu m.

Wherein the flow path includes a first flow path that is close to the drug injection port and has a relatively narrow cross-sectional area; And a second flow path that is close to the injection nozzle and has a relatively large cross-sectional area, and the porous filter may be disposed between the drug injection port and the first flow path.

In this case, the first flow path may be arranged asymmetrically with respect to the central axis at a position deviated from the central axis of the body portion where the jetting port of the jetting nozzle portion is located.

The body portion may include a first body portion including the injection nozzle portion at a front end thereof, the first body portion including the first flow path and the second flow path; And a second body portion having a front end formed to be inserted into a rear end portion of the first body portion and having the drug injection port formed at an end portion thereof and the porous filter is disposed in a drug injection path in a front end portion of the second body portion . At this time, the drug injection path is formed so that its inner diameter becomes gradually narrower from the rear end to the front end thereof, and the porous filter is formed into a conical or cylindrical shape and is installed to be in close contact with the inner circumferential surface of the drug injection path by the pressure for injecting the drug .

The body portion is formed to be connected to a body from a rear end where the drug injection port is disposed to a front end portion where the injection nozzle portion is disposed, and the body of the drug injection port is connected to the drug injection port And the porous filter is disposed between the step portion and the drug inlet, and can be supported by the step portion at the time of injecting the drug.

In the two cases described above, the body part further includes a cylindrical post inserted into the spray nozzle part, and the first flow path is formed by a groove formed along one side of the outer peripheral surface of the post along its longitudinal direction And the second flow path may be formed by a space between an outer circumferential surface of the post and an inner circumferential surface of the body portion.

At this time, the injection nozzle portion has a nozzle tip having an injection port of less than 0.5 mm in diameter, and the nozzle tip protrudes from the inner surface of the injection port to the second flow path side so that the drug distributed around the post, And a rotation guide, which is formed to be rotated and introduced into the housing.

According to the present invention, a filter is disposed in a path for transferring a drug from a mechanism for injecting a drug to a spray nozzle, such as a syringe, to filter out foreign substances such as glass powder, and at the same time, An intra-nasal drug injection device having a filter for uniformly injecting the drug into the nasal cavity. As a result, it is possible to prevent side effects due to the injection of foreign substances such as glass powder and to maximize the drug administration effect by uniformly injecting the drug.

FIG. 1 shows a drug injection device in a nasal cavity according to one embodiment of the present invention.
FIG. 2 shows the internal structure of the intranasal drug injection device according to the embodiment of FIG.
FIG. 3 shows a second body part of the intranasal drug injection device according to the embodiment of FIG.
FIG. 4 shows the configuration of the spray nozzle unit of the intranasal drug spray device according to the embodiment of FIG.
FIG. 5 shows a drug injection device in a nasal cavity according to an embodiment of the present invention.
FIG. 6 shows the internal structure of the intranasal drug injection device according to the embodiment of FIG.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. The embodiments described below can be modified into various forms, and the scope of the present invention is not limited to the embodiments described below or modified examples thereof. The embodiments of the present invention are provided to clearly convey the technical idea of the present invention to those skilled in the art.

FIG. 1 shows a drug injection device in a nasal cavity according to one embodiment of the present invention.

The nasal drug injection device according to the present embodiment includes a body portion 40D having a front end inserted into a nasal cavity and a rear end exposed to the outside of the nasal cavity when the nasal cavity is in use and a flow path through which a liquid drug moves, A drug injection port 21A disposed at the rear end of the body portion 40D and connected to the discharge port 33 of the drug injection mechanism, a drug injection port 21A disposed at the front end of the body portion 40D, And a porous filter (20F) disposed between the drug inlet (21A) and the flow path for filtering foreign substances mixed in the drug. Herein, and in the following description, the front end refers to the side from which the drug is injected, and the rear end refers to the side from which the drug is injected from the drug injection mechanism, such as the syringe 30, on the opposite side.

According to the present embodiment, the body portion 40D includes a first body portion 10 including two portions, that is, the injection nozzle portion 13, and a second body portion 20 including the drug injection port 21A. (20). In this case, the porous filter 20F may be installed in the second body 20. The drug inlet 21A may be sized to allow the discharge port 33 of the syringe 30 to be inserted therethrough. However, the injector 30 is an example of a drug injecting mechanism, and the drug injecting mechanism does not necessarily have to be the injector 30. The drug injecting mechanism may be a mechanism that applies pressure to the drug and injects the drug into the drug injection port 21A.

The first body part 10 includes a first body 11. The first body 11 has a space for accommodating the injection nozzle unit 13 and a space 11A for inserting a front end portion of the second body part 20 therein, And a flow passage for connecting the second body portion 20 with the insertion space 11A. The flow path may include sections having different cross sectional areas, which will be described below with reference to other related drawings.

In the front end of the body portion 40D, in the present embodiment, a foreign body is relaxed around the first body 11 constituting the first body portion 10 when inserted into the nasal cavity, An insertion guide 12 for guiding the drug-in-nasal drug injection device so that the injection port of the nasal cavity injection device is positioned at the center of the nostril. The insertion guide 12 may be formed of a chemical resistant silicone. The insertion guide 12 not only guides the insertion position but also helps prevent the injected drug from flowing out.

The porous filter 20F may be a plastic foam filter or a membrane filter having a pore diameter of 0.1 mu m to 6 mu m. More preferably, it may have pores of 0.2 mu m to 5 mu m. If the pore size is excessively large, the fine particles can not be filtered. If the pore size is excessively small, the pressure is reduced during the passage of the drug through the porous filter 20F, making it difficult to effectively spray the drug. The porous filter 20F may be formed in various shapes such as a cylindrical shape, a conical shape, or a disc shape. The porous filter 20F may be fixedly attached to the surrounding structure by a method such as press fitting or ultrasonic welding.

FIG. 2 shows an internal structure of the intranasal drug injection device according to the embodiment of FIG. 1, and FIG. 3 shows a second body part of the intranasal drug injection device according to the embodiment of FIG.

2, the nasal drug injection device according to the present embodiment is characterized in that the front end portion 22 of the second body portion 20 is inserted into the rear end portion of the first body portion 10, The first body part 10 and the second body part 20 are used in a connected state. A drug injection port 21A is provided on the rear end 21 side of the second body part 20 and a passage connected to the first body part 10 from the inside of the drug injection port 21A, A drug injection path is formed in the front end portion 22 of the body portion 20. [

The porous filter 20F may be formed in a conical shape or a cylindrical shape and installed in the drug infusion path. At this time, the drug injection path is formed so that the inner diameter d1 of the outlet 23A of the front end portion 22 is smaller than the inner diameter d2 of the inlet side which meets the rear end 21 of the second body portion 20, The drug may be formed so that its cross section progressively narrows as the drug progresses. As a result, the porous filter 20F adheres to the inner circumferential surface of the drug infusion path by the pressure applied by the above-described drug infusion mechanism during drug injection, so that the drug can not bypass the porous filter 20F, . In this case, the porous filter 20F may be press-fitted so as to be in close contact with the inner wall of the drug infusion path, or may be attached by ultrasonic welding or the like in order to increase the adhesive force.

The outlet 23A of the drug injection path is inserted into the rear end of the first body 11 and connected to the flow path inside the first body 11. [ The expression "connected" here means that the drug is communicated. The flow path includes a first flow path 15 which is close to the outlet 23A of the drug infusion path and whose sectional area is relatively narrow and a second flow path 16 which is close to the injection nozzle part 13 and whose cross- As shown in FIG. The first flow path 15 and the second flow path 16 may be formed in the first body portion 10 described above, and more specifically, may include a first body 11 And a cylindrical post 14 coupled to an empty space within the first body 11.

The first flow path 15 may be disposed asymmetrically with respect to the center axis at a position deviated from the central axis of the first body part 10 within the first body 11. [ More specifically, the first flow path 15 may be formed by a groove formed along the longitudinal direction of the outer peripheral surface of the cylindrical post 14 and an inner peripheral surface of the first body 11. The second flow path 16 may be formed by a space between an outer circumferential surface of the post 14 and an inner circumferential surface of the first body 11. The second flow path 16 may be formed in a band shape along the periphery of the post 14, for example. The second flow path 16 may be formed symmetrically with respect to the central axis of the first body portion 10 from a portion of the second flow path 16 that faces the first flow path 15 to the injection nozzle portion 13.

Due to the characteristics of the first flow path 15 and the second flow path 16, the pressure increases while the drug passes through the narrow first flow path 15 at the time of injecting the drug, 15 to the second flow path 16 while increasing the rotational force of the drug.

FIG. 4 shows the configuration of the spray nozzle unit of the intranasal drug spray device according to the embodiment of FIG.

The injection nozzle portion has a nozzle tip 50 having an injection port N of less than 0.5 mm in diameter. The diameter of the injection port N may be preferably 0.2 mm to 0.3 mm.

4 (a) shows a cross section of the nozzle tip 50 constituting the injection nozzle unit 13 and FIG. 4 (b) shows the nozzle tip 50 inside the nozzle N, that is, And is viewed from the side of the post 14 described with reference to FIG. The nozzle tip 50 protrudes from the inner side of the injection port N toward the post and the second flow path side so that a drug distributed around the post is injected into the injection port N And may include a guide 51. The rotation guide (51) serves to spray the drug in a wide and even distribution by the rotational force when the drug is injected from the injection port (N) to the nasal cavity side.

FIG. 5 shows a nasal drug injection device according to one embodiment of the present invention, and FIG. 6 shows the internal structure of the drug injection device according to the embodiment of FIG.

1 to 4, the body portion 40S is disposed at the front end thereof from the drug injection port 41A at the rear end of the drug injection device 41A, To the injection nozzle unit 43, which is formed by a single body 41, as shown in FIG. The body 40S has a stepped portion 42 whose inner wall 47 protrudes from the drug injection port 41A to the first flow path 45 and the stepped portion 42 ) And the drug injection port 41A are arranged so as to be supported by the step portion 42 when the drug is injected.

Also in this embodiment, the body portion 40S further includes a cylindrical post 44 inserted into the injection nozzle portion 43, and the first flow path 45 is connected to the upper end of the post 44 And the second flow path 46 may be formed by a space between the outer circumferential surface of the post 44 and the inner circumferential surface of the one body 41. [ The structure and function of the first flow path 45 and the second flow path 46 and the nozzle tip 50 constituting the spray nozzle part 43 are the same as those of the above-described embodiment.

10: first body part
11: first body 12: insertion guide
13, 43: jet nozzle part 15, 45:
16, 46: second flow path 20: second body part
20F, 40F: porous filter 21A, 41A: drug inlet
30: a syringe (drug injector) 40A, 40B:
50: nozzle tip 51: rotation guide

Claims (9)

A body portion having a front end inserted into the nasal cavity and a rear end exposed to the outside of the nasal cavity, wherein a flow path through which the liquid drug moves is formed;
A drug inlet disposed at a rear end of the body portion and connected to a discharge port of the drug infusion device;
A spray nozzle unit disposed at a front end of the body and spraying the drug through the drug inlet and the flow path into the nasal cavity; And
And a porous filter disposed between the drug inlet and the flow path for filtering foreign substances mixed in the drug,
Wherein the flow path includes a first flow path that is close to the drug injection port and has a relatively narrow cross-sectional area; And a second flow path that is close to the injection nozzle portion and has a relatively large cross-sectional area,
Wherein the porous filter is disposed between the drug inlet and the first flow path,
Wherein the first flow path is disposed asymmetrically with respect to the central axis at a position deviated from the central axis of the body portion where the jetting port of the jetting nozzle portion is located,
Intranasal drug injection device.
The method according to claim 1,
Wherein the porous filter is a plastic foam or membrane filter having a pore diameter of 0.1 탆 to 6 탆,
Intranasal drug injection device.
delete delete The method according to claim 1,
The body portion
A first body portion accommodating the injection nozzle portion at a front end thereof, the first body portion including the first flow path and the second flow path; And
And a second body portion having a front end portion formed to be inserted into a rear end portion of the first body portion and having the drug injection port formed at an end portion thereof,
Wherein the porous filter is disposed in a drug infusion passage in a front end portion of the second body portion,
Intranasal drug injection device.
6. The method of claim 5,
The drug infusion passage is formed so that its inner diameter becomes gradually narrower from its rear end to its front end,
Wherein the porous filter is formed in a conical shape or a cylindrical shape and is installed to be in close contact with an inner peripheral surface of the drug infusion path by a pressure for injecting the drug,
Intranasal drug injection device.
The method according to claim 1,
The body portion is formed to be connected to the body portion from the rear end where the drug injection port is disposed to the front end portion where the injection nozzle portion is disposed, and the body portion is provided with a drug injection path extending from the drug injection port to the first flow path. A stepped portion whose inner wall protrudes,
Wherein the porous filter is disposed between the step portion and the drug inlet and is supported by the step portion at the time of drug injection,
Intranasal drug injection device.
The method according to claim 1,
The body portion further includes a cylindrical post inserted into the injection nozzle portion,
Wherein the first flow path is formed by a groove formed along a longitudinal direction of the outer peripheral surface of the post and the second flow path is formed by a space between an outer peripheral surface of the post and an inner peripheral surface of the body portion,
Intranasal drug injection device.
9. The method of claim 8,
Wherein the injection nozzle portion has a nozzle tip having an injection port with a diameter of less than 0.5 mm,
Wherein the nozzle tip is protruded from the inner surface of the injection port to the second flow path side so that a drug distributed around the post is rotated to flow toward the injection port,
Intranasal drug injection device.
KR2020150002303U 2015-04-10 2015-04-10 Nasal injection spray device having filter KR200482070Y1 (en)

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KR200482070Y1 true KR200482070Y1 (en) 2016-12-13

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019216535A1 (en) 2018-05-11 2019-11-14 유한회사 플루켐 Device and method for injecting liquid drug into nasal cavity and paranasal sinuses

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KR200151755Y1 (en) 1995-05-03 1999-07-15 송창빈 Nose cleaning device

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JP2543301Y2 (en) * 1990-03-02 1997-08-06 ヤンマー農機株式会社 Multi presser roll in ridge work machine
JPH09299484A (en) * 1996-05-10 1997-11-25 Maeda Sangyo Kk Syringe spray pump
KR100399287B1 (en) 2001-01-29 2003-09-26 조아제약주식회사 Medicine Bottle of Nose Gargle
KR200355181Y1 (en) 2004-02-05 2004-07-03 유한회사 신신프락콘 A nebulizer spray
KR101458163B1 (en) 2012-03-12 2014-11-04 주식회사 글로원 Injection drug spray and injection drug apparatus including the spray
KR200472773Y1 (en) * 2012-07-13 2014-05-22 장근수 Filter Needle and Assembly having the same

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KR200151755Y1 (en) 1995-05-03 1999-07-15 송창빈 Nose cleaning device

Non-Patent Citations (1)

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Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019216535A1 (en) 2018-05-11 2019-11-14 유한회사 플루켐 Device and method for injecting liquid drug into nasal cavity and paranasal sinuses

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