WO2022050569A1 - Bouchons de nez et masque les comprenant - Google Patents

Bouchons de nez et masque les comprenant Download PDF

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Publication number
WO2022050569A1
WO2022050569A1 PCT/KR2021/009527 KR2021009527W WO2022050569A1 WO 2022050569 A1 WO2022050569 A1 WO 2022050569A1 KR 2021009527 W KR2021009527 W KR 2021009527W WO 2022050569 A1 WO2022050569 A1 WO 2022050569A1
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WO
WIPO (PCT)
Prior art keywords
nose plug
sealing member
procedure
mask
entrance hole
Prior art date
Application number
PCT/KR2021/009527
Other languages
English (en)
Korean (ko)
Inventor
박준욱
송재훈
이동현
Original Assignee
가톨릭대학교 산학협력단
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 가톨릭대학교 산학협력단 filed Critical 가톨릭대학교 산학협력단
Publication of WO2022050569A1 publication Critical patent/WO2022050569A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/05—Splash shields for protection of the surgeon, e.g. splash guards connected to the apparatus
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
    • A41D13/1107—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00131—Accessories for endoscopes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/00147—Holding or positioning arrangements
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/233—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the nose, i.e. nasoscopes, e.g. testing of patency of Eustachian tubes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
    • A61B10/0045—Devices for taking samples of body liquids
    • A61B10/0051—Devices for taking samples of body liquids for taking saliva or sputum samples
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B23/00—Filters for breathing-protection purposes
    • A62B23/06—Nose filters

Definitions

  • the present invention provides a nose plug capable of preventing the spread of respiratory infectious diseases to surrounding medical personnel or surrounding patients through droplets discharged by the patient's natural breathing when a procedure and examination instrument are inserted into the patient's nostril, and a mask comprising the same is about
  • SARS severe Acute Respiratory Syndrome
  • avian influenza a deadly viral respiratory disease that emerged in Wuhan, China around December 2019, the world is on the verge of a pandemic that spreads viral infections. faced, and urgent measures are required.
  • the patient is a patient with a respiratory infectious disease such as COVID-19
  • a respiratory infectious disease such as COVID-19
  • the problem to be solved by the present invention is a coma that can prevent the spread of respiratory infectious diseases to surrounding medical personnel or surrounding patients by blocking the discharge of droplets due to the patient's natural breathing when the procedure and the examination instrument are inserted into the patient's nostrils
  • An object of the present invention is to provide a dog and a mask comprising the same.
  • a nose plug according to an embodiment of the present invention for solving the above problems may be worn on the nostrils, the nose plug body having an inlet and out hole communicating with the nasal passages; And it includes a sealing member for sealing the access hole, when the operation and inspection tool enters and exits the hole, the sealing member closes the access hole in close contact with the operation and inspection mechanism.
  • the sealing member may include a flexible material, and when the operation and the inspection instrument enters and exits the entrance hole, by the elastic force of the sealing member, it may be fixed in close contact with the outer circumferential surface of the operation and inspection mechanism.
  • it may include a plurality of cutouts cut in a radial direction from the center of the sealing member.
  • the sealing member is composed of a plurality, the plurality of the sealing member is arranged along the other end from one end of the entrance hole, the plurality of the sealing member may have different diameters.
  • the access hole has a shape in which a cross-sectional area increases from one end to the other end, and the plurality of sealing members may have a relatively large diameter as they are disposed from one end to the other end of the access hole.
  • the nose plug body is configured as a pair, and may further include a connecting portion connecting the pair of the nose plug body to each other.
  • connection part may include a flexible material, and the distance between the pair of nose plug bodies may be adjusted by bending the connection part.
  • the mask according to an embodiment of the present invention may be worn on the nostrils, and includes a nose plug that blocks the flow of droplets when entering and exiting the procedure and the examination instrument; and a mask body coupled to the nose plug to cover the mouth.
  • the nose plug can be worn on the nostrils, the nose plug body is formed in communication with the nasal passages; And it may include a sealing member for sealing the entrance hole.
  • the mask body may have an exposed portion penetrating through the entrance hole to expose it.
  • the sealing member may include a flexible material, and when the operation and the inspection instrument enters and exits the entrance hole, by the elastic force of the sealing member, it may be fixed in close contact with the outer circumferential surface of the operation and inspection mechanism.
  • it may include a plurality of cutouts cut in a radial direction from the center of the sealing member.
  • a nose plug and a mask including the same block the discharge of droplets due to the patient's natural breathing when the procedure and the examination instrument are inserted into the patient's nostrils, thereby causing respiratory infections to surrounding medical personnel or surrounding patients. It has the advantage of preventing the spread.
  • FIG. 1 is a perspective view showing a nose plug according to a first embodiment of the present invention.
  • Figure 2 is a cross-sectional view showing a nose plug according to the first embodiment of the present invention.
  • Figure 3 is a perspective view showing a state in which the procedure and inspection instruments are penetrated through the nose plug according to the first embodiment of the present invention.
  • Figure 4 is a cross-sectional view showing a state in which the procedure and inspection instruments are penetrated in the nose plug according to the first embodiment of the present invention.
  • Figure 5 is a perspective view showing a nose plug according to a second embodiment of the present invention.
  • FIGS. 6 to 7 are cross-sectional views showing a nose plug according to a second embodiment of the present invention.
  • FIG. 8 is a rear view showing a mask according to a third embodiment of the present invention.
  • FIG. 9 is a front view showing a mask according to a third embodiment of the present invention.
  • FIG 10 is a cross-sectional view showing a state in which the procedure and the inspection instrument are penetrated through the mask according to the third embodiment of the present invention.
  • FIG. 11 is a rear view showing a mask according to a fourth embodiment of the present invention.
  • FIG. 12 is a rear view showing a mask according to a fourth embodiment of the present invention.
  • Figure 1 is a perspective view showing a nose plug according to a first embodiment of the present invention
  • Figure 2 is a cross-sectional view showing a nose plug according to a first embodiment of the present invention
  • Figure 3 is a nose plug according to the first embodiment of the present invention 4 is a perspective view showing a state in which the procedure and the inspection instrument are penetrated
  • FIG. 4 is a cross-sectional view showing the state in which the procedure and the inspection instrument are penetrated through the nose plug according to the first embodiment of the present invention.
  • the nose plug according to the first embodiment of the present invention includes a nose plug body 10 and a sealing member (20).
  • the nose plug body 10 is worn on the nostrils, and inside the nose plug body 10, an inlet 11 for entry and exit of a procedure such as an endoscope and an inspection instrument 1 is formed, and a sealing member ( 20) seals the entrance hole 11. Therefore, when the procedure and inspection instrument 1, such as an endoscope, enters and exits the entrance hole 11 of the nose plug body 10, the sealing member 20 blocks the flow of droplets in the entrance hole 11, prevent infection; In particular, the sealing member 20 is fixed in close contact with the outer circumferential surface of the procedure and inspection instrument 1 even in a state in which the procedure and inspection instrument 1 is penetrated, thereby blocking the flow of droplets in the entry hole 11, infection can be prevented.
  • the nose plug body 10 serves to be worn on the nostrils.
  • the nose plug body 10 may have a shape in which the diameter increases in the direction in which it is discharged from the nostril. In this case, when the nose plug body 10 is inserted into the nostril, it is possible to prevent the nose plug body 10 from being completely inserted into the nostril.
  • an inlet 11 that communicates with the nasal passages is formed inside the nose plug body 10, while the nose plug body 10 is worn in the nostrils.
  • the entrance hole 11 may be formed in a penetrating shape along the longitudinal direction of the nose plug body 10 , and the procedure and inspection instrument 1 may be entered into the entrance hole 11 . Therefore, the operator can check the state of the mucous membrane of the nasal cavity by using the procedure and the inspection instrument 1 that has entered the entrance and exit holes 11, and through this, it is possible to identify respiratory diseases.
  • the sealing member 20 serves to block the flow of droplets in the entrance hole 11 when entering and exiting the entrance hole 11 of the procedure and inspection instrument 1 .
  • the sealing member 20 may include a flexible material or may be made of a flexible material.
  • the sealing member 20 may be formed in the form of a film covering a specific depth of the entrance hole 11 .
  • the sealing member 20 is closed by the elastic force of the sealing member 20 of the procedure and inspection instrument 1 . It is attached to the outer circumferential surface and fixed.
  • the sealing member 20 can block the droplet flow in the entry/exit hole 11, as well as the outer peripheral surface of the procedure and inspection device 1 can be firmly supported.
  • the sealing member 20 may include a plurality of cutouts 21 cut in a radial direction from the center of the membrane shape.
  • the sealing member 20 may be separated into a plurality of unit members 22 by the plurality of cutouts 21 .
  • the plurality of unit members 22 are bent in the direction in which the operation and inspection mechanism 1 enters and exits. It is fixed in close contact with the outer circumferential surface of the procedure and inspection instrument 1 by the elastic restoring force.
  • the operation and inspection mechanism 1 can move freely on the plurality of unit members 22.
  • the plurality of unit members 22 can move freely on the operation and inspection It maintains a state in close contact with the outer circumferential surface of the mechanism (1). Therefore, when entering and exiting the entry/exit hole 11 of the procedure and inspection device 1, a plurality of unit members 22 can block the flow of droplets in the entry/exit hole 11, as well as free movement of the procedure and inspection device 1 can make movement possible.
  • the sealing member 20 may be composed of a plurality. A plurality of these sealing members 20 may be arranged along the other end from one end of the entrance hole (11).
  • the plurality of sealing members 20 may have different diameters.
  • the plurality of sealing members 20 may have a relatively large diameter as they are disposed from one end of the entrance hole 11 to the other end. .
  • the plurality of sealing members 20 may have a relatively large diameter toward the direction in which the procedure and inspection instrument 1 is entered.
  • the plurality of sealing members 20 are formed in the form of a film covering a specific depth of the entrance hole 11 . Therefore, the diameter of each sealing member 20 may be determined according to the diameter of the entrance hole (11). Therefore, the entrance hole 11 may have a shape in which the cross-sectional area increases from one end of the entrance hole 11 to the other end, and therefore, the plurality of sealing members 20 move from one end of the entrance hole 11 to the other end. As it is disposed, it may have a relatively large diameter.
  • the entrance hole 11 may have a shape in which the cross-sectional area increases in the direction in which the procedure and inspection instrument 1 is entered, and therefore, a plurality of sealing members 20 are provided with the procedure and inspection instrument 1 It may have a relatively large diameter as it goes in the direction in which it is entered.
  • the plurality of sealing members 20 do not greatly limit the tilting angle of the procedure and inspection instrument 1 during the initial entry and exit of the entrance hole 11 of the procedure and inspection instrument 1, but then, the procedure and inspection instrument By gradually limiting the tilting angle of the procedure and inspection instrument (1) as the distance (1) enters and exits the entrance hole (11) increases, the end of the procedure and inspection instrument (1) contacts and stimulates the inner wall of the nostril It can help prevent sneezing.
  • first sealing member 20a the second sealing member 20b, and the third sealing member 20c will be described in more detail by taking examples.
  • the first sealing member 20a is disposed at one end of the entry hole 11 and has a first diameter
  • the second sealing member 20b has one end and the other end of the entry hole 11 . It is disposed between and has a second diameter smaller than the first diameter
  • the third sealing member 20c is disposed at the other end of the entrance hole 11 and has a third diameter smaller than the second diameter.
  • the procedure and inspection instrument 1 penetrates the first sealing member 20a first, and the first sealing member 20a Since the tilting angle of the inspection mechanism 1 is not significantly limited, the operation and inspection mechanism 1 can be easily tilted. After that, the operation and inspection mechanism 1 penetrates through the second sealing member 20b, and the second sealing member 20b limits the tilting angle of the operation and inspection mechanism 1 to the second diameter, so that , the tilting angle of the procedure and inspection instrument (1) is limited to the primary.
  • the operation and inspection mechanism 1 penetrates through the third sealing member 20c, and the third sealing member 20c limits the tilting angle of the operation and inspection mechanism 1 to the second diameter, so that , the tilting angle of the procedure and inspection instrument (1) is limited to the second.
  • the procedure and inspection mechanism 1 penetrates the entrance hole 11 in a state in which the milting angle is limited by the first sealing member 20a to the third sealing member 20c. As a result, it is possible to prevent sneezing by contacting and stimulating the inner wall of the nostril with the distal end of the procedure and inspection instrument 1 .
  • the operator wears the nose plug body 10 on the recipient's nostrils to block the flow of droplets from the recipient's nostrils.
  • the operator when the operator wears a mask, the operator lowers the mask worn by the operator to expose the nose, and then puts the nose plug body 10 on the nostrils of the fish tape measure.
  • the procedure and inspection instrument 1 entered in and out of the entrance hole 11 of the nose plug body 10 may penetrate the sealing member 20, in this case, the sealing member by the elastic force of the sealing member 20 (20) by being fixed in close contact with the outer peripheral surface of the procedure and inspection instrument (1), the droplet flow in the entrance hole (11) can be blocked.
  • the sealing member 20 is separated into a plurality of unit members 22 , and the procedure and inspection instrument 1 entered and exited through the entrance hole 11 of the nose plug body 10 is applied to the plurality of unit members 22 .
  • the plurality of unit members 22 are bent in the direction in which the operation and inspection mechanism 1 is entered and then fixed in close contact with the outer peripheral surface of the operation and inspection mechanism 1 by an elastic restoring force, so that the entrance hole 11 ) may be blocked.
  • the nose plug body 10 is separated from the operator's nostrils.
  • FIGS. 6 to 7 are cross-sectional views showing a nose plug according to a second embodiment of the present invention.
  • the nose plug body 10 is configured as a pair, and a connecting part 30 connecting the pair of nose plug bodies 10 to each other.
  • connection part 30 may include a flexible material or may be made of a flexible material.
  • the gap between the pair of nose plug bodies 10 may be adjusted by bending the connecting portion 30 .
  • a pair of nose plug bodies 10 are disposed on one surface of the connection part 30 to be spaced apart from each other, and a pair of nose plug bodies 10 are close to one surface of the connection part 30 .
  • the gap between the pair of nose plug bodies 10 may be narrowed.
  • the distance between the pair of nose plug bodies 10 can be adjusted so that the distance between the pair of nose plug bodies 10 corresponds to the distance between the pair of nostrils of the recipient.
  • the connecting part 30 may be formed in the form of a curved plate curved with a predetermined curvature, and the pair of nose plug bodies 10 may be coupled to one surface of the curved plate.
  • the nose plug body 10 may be detachably coupled to the connection part 30 , for example, a protrusion 12 protruding from one end of the nose plug body 10 is formed and , the connecting portion 30 has an insertion hole 31 corresponding to the protruding portion 12 is formed, and the protruding portion 12 of the nose plug body 10 may be fitted into the insertion hole 31 of the connecting portion 30 .
  • the protrusion 12 and the insertion hole 31 may be formed in a cylindrical shape, but are not particularly limited, and the protrusion 12 and the insertion hole 31 may also be formed in a polygonal shape.
  • FIG. 8 is a rear view showing a mask according to a third embodiment of the present invention
  • FIG. 9 is a front view showing a mask according to a third embodiment of the present invention
  • FIG. 10 is a mask according to a third embodiment of the present invention. It is a cross-sectional view showing a state in which the procedure and inspection instrument (1) is penetrated.
  • the mask according to the third embodiment of the present invention includes a nose plug and a mask body 40 .
  • the nose plug may be configured according to the first embodiment or the second embodiment of the present invention.
  • the mask body 40 is coupled to the nose plug to cover the mouth.
  • the mask body 40 may have an exposed portion 41 that is penetrated to expose the entrance hole 11 of the nose plug body 10 .
  • the mask may include a pair of ear straps 50 .
  • a pair of ear straps 50 are connected to both sides of the mask body 40 and may be worn on the ears.
  • the pair of ear straps 50 may be a rubber band, but is not particularly limited.
  • FIG. 11 is a rear view showing a mask according to a fourth embodiment of the present invention
  • FIG. 12 is a rear view showing a mask according to a fourth embodiment of the present invention.
  • a pair of ear straps 50 of the mask according to the third embodiment of the present invention are replaced with a pair of adhesive members 60 .
  • a pair of adhesive members 60 may be coupled to both sides of the mask body 40 and adhered to the face.
  • the adhesive member 60 may be a double-sided tape, but is not particularly limited.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Medical Informatics (AREA)
  • Pathology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biomedical Technology (AREA)
  • Veterinary Medicine (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Biophysics (AREA)
  • Optics & Photonics (AREA)
  • Physics & Mathematics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Otolaryngology (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Textile Engineering (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Pulmonology (AREA)
  • Hematology (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Endoscopes (AREA)

Abstract

La présente invention concerne des bouchons de nez comprenant : des corps de bouchon de nez qui peuvent être portés dans les narines et ont des trous d'entrée et de sortie en communication avec des passages nasaux ; et des éléments d'étanchéité qui scellent les trous d'entrée et de sortie, lorsque des instruments d'inspection et d'opération entrent et sortent des trous d'entrée et de sortie, les éléments d'étanchéité fermant les trous d'entrée et de sortie en contact étroit avec les instruments d'inspection et d'opération.
PCT/KR2021/009527 2020-09-07 2021-07-23 Bouchons de nez et masque les comprenant WO2022050569A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2020-0113677 2020-09-07
KR1020200113677A KR102401814B1 (ko) 2020-09-07 2020-09-07 코마개 및 이를 포함하는 마스크

Publications (1)

Publication Number Publication Date
WO2022050569A1 true WO2022050569A1 (fr) 2022-03-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2021/009527 WO2022050569A1 (fr) 2020-09-07 2021-07-23 Bouchons de nez et masque les comprenant

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KR (2) KR102401814B1 (fr)
WO (1) WO2022050569A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0751221A (ja) * 1993-08-18 1995-02-28 Sumitomo Bakelite Co Ltd ガイドチューブ
KR20040107333A (ko) * 2003-06-13 2004-12-20 유의성 흡배수단 다용도 마스크
CN201618163U (zh) * 2010-03-30 2010-11-03 徐伟 一种婴儿用胃管
KR20120020335A (ko) * 2010-08-30 2012-03-08 최창익 체크밸브를 이용한 코마개
KR20150115154A (ko) * 2014-04-02 2015-10-14 건국대학교 산학협력단 초미세 먼지용 다목적 마스크
CN107551381A (zh) * 2017-10-16 2018-01-09 李莉 一种具有保护功能的反向膨胀式鼻腔导管固定装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150130079A (ko) 2014-05-13 2015-11-23 서원준 내시경용 호흡마스크
KR20200062939A (ko) * 2018-11-27 2020-06-04 김제훈 내시경용 마스크

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0751221A (ja) * 1993-08-18 1995-02-28 Sumitomo Bakelite Co Ltd ガイドチューブ
KR20040107333A (ko) * 2003-06-13 2004-12-20 유의성 흡배수단 다용도 마스크
CN201618163U (zh) * 2010-03-30 2010-11-03 徐伟 一种婴儿用胃管
KR20120020335A (ko) * 2010-08-30 2012-03-08 최창익 체크밸브를 이용한 코마개
KR20150115154A (ko) * 2014-04-02 2015-10-14 건국대학교 산학협력단 초미세 먼지용 다목적 마스크
CN107551381A (zh) * 2017-10-16 2018-01-09 李莉 一种具有保护功能的反向膨胀式鼻腔导管固定装置

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KR102401814B1 (ko) 2022-05-24
KR20220069912A (ko) 2022-05-27
KR20220032193A (ko) 2022-03-15
KR102553950B1 (ko) 2023-07-07

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