WO2020091202A1 - Dispositif destiné à être inséré dans une trompe d'eustache - Google Patents

Dispositif destiné à être inséré dans une trompe d'eustache Download PDF

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Publication number
WO2020091202A1
WO2020091202A1 PCT/KR2019/010250 KR2019010250W WO2020091202A1 WO 2020091202 A1 WO2020091202 A1 WO 2020091202A1 KR 2019010250 W KR2019010250 W KR 2019010250W WO 2020091202 A1 WO2020091202 A1 WO 2020091202A1
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WO
WIPO (PCT)
Prior art keywords
tail
head
eustachian tube
tail part
cross
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/KR2019/010250
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English (en)
Korean (ko)
Inventor
최성원
공수근
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
University Industry Cooperation Foundation of Pusan National University
Original Assignee
University Industry Cooperation Foundation of Pusan National University
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 University Industry Cooperation Foundation of Pusan National University filed Critical University Industry Cooperation Foundation of Pusan National University
Publication of WO2020091202A1 publication Critical patent/WO2020091202A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F11/00—Methods or devices for treatment of the ears or hearing sense; Non-electric hearing aids; Methods or devices for enabling ear patients to achieve auditory perception through physiological senses other than hearing sense; Protective devices for the ears, carried on the body or in the hand
    • A61F11/06—Protective devices for the ears
    • A61F11/08—Protective devices for the ears internal, e.g. earplugs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F11/00—Methods or devices for treatment of the ears or hearing sense; Non-electric hearing aids; Methods or devices for enabling ear patients to achieve auditory perception through physiological senses other than hearing sense; Protective devices for the ears, carried on the body or in the hand
    • A61F11/06—Protective devices for the ears
    • A61F11/08—Protective devices for the ears internal, e.g. earplugs
    • A61F11/085—Protective devices for the ears internal, e.g. earplugs including an inner channel
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/18—Internal ear or nose parts, e.g. ear-drums
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/18—Internal ear or nose parts, e.g. ear-drums
    • A61F2002/183—Ear parts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2250/0058—Additional features; Implant or prostheses properties not otherwise provided for
    • A61F2250/0067—Means for introducing or releasing pharmaceutical products into the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2250/00—Special features of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2250/0058—Additional features; Implant or prostheses properties not otherwise provided for
    • A61F2250/0096—Markers and sensors for detecting a position or changes of a position of an implant, e.g. RF sensors, ultrasound markers
    • A61F2250/0098—Markers and sensors for detecting a position or changes of a position of an implant, e.g. RF sensors, ultrasound markers radio-opaque, e.g. radio-opaque markers

Definitions

  • the present invention relates to a device that is inserted into the ear canal, and relates to an ear canal insertion device that is inserted so as to be able to treat a disability telangiectasia, in which the ear canal is sometimes or continuously opened.
  • Ear canal opening is a symptom of physical disability that sometimes causes the ear canal to open continuously, and it experiences self-resonance. In severe cases, sounds that are inaudible to the normal person, such as all of the patient's breathing, speech, swallowing, and heartbeats, cause the patient to vibrate the eardrum directly, creating a sound effect that looks like a bucket over his head.
  • Symptoms of patients with telangiectasia can vary from hot flashes to severe disturbances in daily life. In some cases, hot flashes that occur during pregnancy may disappear naturally after childbirth. If the weight suddenly decreases due to excessive diet, the weight may recover and the symptoms may disappear. If this is not a temporary symptom, it will cause a significant obstacle to the patient's social activities. In this case, treatment should be actively attempted.
  • telangiectasia is divided into medical treatment and surgical treatment.
  • edema of the nasopharyngeal inlet mucosa is created by dripping the nasopharyngeal inlet mucosa of the ear canal with premarin nasal solution, potassium iodide saturated solution, atropine anticholinergine, etc. It can be applied as an initial treatment.
  • surgical treatment includes tympanic incision and ventilation tube insertion, increased tympanic stiffness, intubation of the nasopharyngeal oropharyngeal tube, insertion of the catheter of the nasopharyngeal canal, insertion of a plug or catheter in the middle ear canal, palatal pancreas dislocation and wing hook excision,
  • tympanic incision and ventilation tube insertion are limited to relief of symptoms of changes in the middle ear pressure and movement of the eardrum, and are thought to have little effect on self-healing, and the increase in the eardrum stiffness can be expected to relieve the subjective symptoms of telangiectasia.
  • the injection of the ear canal is not high in symptom improvement compared to the difficult procedure.
  • the insertion of the catheter at the entrance of the catheter is highly likely to escape the catheter, and the excision of the palatal extensor muscle potential and wing hook requires resection, and the occlusion can completely eliminate the symptoms of telangiectasia, but is permanent. In some cases, you may need to insert a phosphorus tube.
  • the present invention is to propose a tube insertion mechanism that can be used for the insertion technology or the catheter insertion technology in the middle ear tube.
  • the present invention has been devised to solve the above problems, and it is an object of the present invention to provide a tube insertion mechanism that can be used for the insertion plug or catheter insertion technology in the middle ear and can be permanently inserted into the tube.
  • an object of the present invention is to provide a tube insertion mechanism provided with a locking portion so as not to slip or fall out of the tube during sneezing or movement of the patient.
  • the object of the present invention is to provide the most effective size of the tube insertion mechanism that alleviates the symptoms of biceps ductosis but does not block the flow of air in the tube.
  • the object of the present invention is to provide a tube insertion mechanism, which is inserted into the tube and is visible on X-rays, to which a material is applied.
  • the tube insertion mechanism is inserted into the expanded tube and the tail portion is provided with an oval cross-section;
  • the tail portion is characterized in that the length ratio of the cross section of one end and the other end connected to the head is 2.0: 1.0.
  • an inorganic material or a metal is included in any one or more of the engaging portion, the head portion, and the tail portion, and thus a marking portion is provided.
  • an antibiotic is coated on the surface of any one or more of the engaging portion, the head portion and the tail portion.
  • the steroid is coated on the surface of any one or more of the engaging portion, the head portion and the tail portion.
  • the present invention can be used in the middle ear canal inlet plug or catheter insertion technique, and can be provided in the ear canal insertion mechanism that can be permanently used by being inserted into the canal.
  • the present invention can provide a tube insertion mechanism provided with a locking portion so as not to slip or fall out of the tube during sneezing or movement of the patient.
  • the present invention can provide the most effective size of the tube insertion mechanism that alleviates the symptoms of telangiectasia but does not block the flow of air in the tube.
  • the present invention can provide a tube insertion mechanism in which a material that can be seen on X-rays is inserted into any one or more of the locking portion, the head portion, and the tail portion and is visible on the X-ray.
  • the present invention can provide a tube insertion mechanism coated with a steroid on one or more of the engaging portion, the head portion and the tail portion.
  • FIG. 1 is a view showing a state after the operation of the ear canal insertion mechanism by the intraoral ear canal entrance plug or catheter insertion technique.
  • Figure 2 is a front view of the tube insertion mechanism manufactured by the present invention.
  • Figure 3 is a side view of the tube insertion mechanism manufactured by the present invention.
  • FIG. 4 is a view showing a case in which a length ratio of a cross section of one end connected to a head from a tail to a cross section of the other end is 1.5: 1.0, according to an embodiment of the present invention.
  • Figure 5 is an embodiment of the present invention, a view showing a case where the length ratio of the cross section of one end and the other end connected to the head at the tail is 2.0: 1.0.
  • FIG. 6 is a view showing an example of the lip insertion mechanism according to the present invention when the length ratio of a cross section of one end connected to a head from a tail to a cross section of the other end is 2.0: 1.5.
  • FIG. 7 is a view showing a case in which the length ratio of the cross section of one end and the other end connected to the head from the tail is 2.5: 2.0, as an embodiment of the otic tube insertion mechanism of the present invention.
  • FIG. 8 is a view showing an embodiment in which the cross-sectional shape of the tail portion is variously manufactured.
  • the otic tube insertion mechanism according to the present invention is composed of a tail portion, a head portion, and a locking portion, as shown in FIGS. 2 and 3.
  • the tail portion is inserted into the expanded ear canal and is provided with an elliptical cross section.
  • the tail portion is provided to be curved toward the end, so that some jams may be formed when inserted into the ear canal.
  • the head portion is provided to extend from one end of the tail portion, but is divided into two pipes at the tail portion, and the two pipes are provided at an angle of 10 to 20 ° so that the tail portion is not slipped after insertion.
  • the step is provided with a step in the tail portion so that the two pipes of the head are opened, so that the tail portion is not affected or opened together.
  • the head portion is provided at an angle of 10 to 20 ° so that the head portion of the head portion is not hooked or slipped by the head portion of the ear pipe.
  • the angle between the two pipes is less than 10 °, the head may be slipped without being caught in the bone, and when the angle between the two pipes exceeds 20 °, the bone of the ear canal is widened to shrink the ear canal. Since the effect may be insignificant, it is preferable to perform under the above conditions.
  • the engaging portion extends from the two pipes of the head, respectively, and is bent horizontally to form the engaging portion. Although not shown in FIG. 1, the locking portion is bent horizontally, so that the locking portion may further form a locking portion.
  • the tail portion is inserted through a tympanic incision, the tail portion is first inserted, the head portion is caught in the bone portion of the ear canal, and the engaging portion further forms a hook portion in the inner ear bone portion.
  • the engaging portion, the head portion and the tail portion may be made of a silicone compound and specifically, octamethylcyclosiloxane or the like. Specific gravity is 1.14 ⁇ 0.05, hardness is 60 (JIS A), tensile is 78 (kgf / cm2), and height is 275 (%).
  • the inner ear is caused by patient movement or sneezing, coughing, and yawning. It is preferably provided so as not to be damaged.
  • the length of the engaging portion is 4 (mm)
  • the length of the head portion is 5 (mm)
  • the length of the tail portion is 18 (mm)
  • the present inventors of the entire tube insertion mechanism It is preferable that the horizontal length is 23 (mm).
  • the longitudinal length of the engaging portion is 4 (mm)
  • the one end of the head portion extending from the tail portion is 2 (mm)
  • the other end of the tail portion is 1 (mm) ) Is effective. That is, it is preferable that a length ratio of a cross section of one end connected to the head and a cross section of the other end is 2.0: 1.0.
  • the tube insertion mechanism manufactured by the present invention includes an inorganic material or metals in any one or more of the engaging portion, the head portion, and the tail portion, to provide a marking portion.
  • the marker includes at least one selected from amorphous selenium, mercury, lead oxide (PbO), cadmium telluride (CdTe), and cadmium selenide (CdSe) to be detected by X-rays.
  • the marking portion may be manufactured by mixing with the silicone compound when the engaging portion, the head portion and the tail portion are manufactured, and may be manufactured in a form of being applied to a surface or attached with a band after the engaging portion, the head portion and the tail portion are manufactured. have.
  • antibiotics may be coated on the surface of any one or more of the engaging portion, the head portion, and the tail portion.
  • the antibiotic may use ofloxacin, which can be used as a dropable substance in the middle ear in the lice region.
  • the antibiotic may be prepared by mixing with the silicone compound, such as the marking portion, and may be prepared in a form that is applied to the surface or attached with a band after the engaging portion, the head portion and the tail portion are prepared.
  • the ear canal insertion device manufactured by the present invention is made of a silicone mixture and coated with the antibiotic on the hook, head, and tail, thereby minimizing the inflammatory reaction that can occur when bacteria existing in the outer ear enter the inner ear. .
  • a steroid may be coated on the surface of any one or more of the engaging portion, the head portion, and the tail portion.
  • the steroid may be used alone or in combination with one or more selected from Dexamethasone and hydrocortisone.
  • the steroid may be prepared by mixing with the silicone compound as in the antibiotic and the marker, and may be prepared in a form applied to the surface or banded after the hook, head and tail are prepared. The steroid reduces foreign body reactions inside the ear canal.
  • the present inventors manufacture a variety of forms of the tube insertion mechanism to be inserted into the tube to determine the most convenient form to maintain.
  • FIGS. 4 to 7 were prepared with a tube insertion mechanism.
  • the vertical length of the engaging portion is 4 (mm)
  • the length of the head portion is 5 (mm)
  • the length of the tail portion is 18 (mm), which is the width of the entire tube insertion mechanism of the present inventor.
  • the length was made of 23 (mm)
  • the one end of which the head was extended from the tail was 1.5 (mm)
  • the other end of the tail was made of 1 (mm).
  • the vertical length of the engaging portion is 4 (mm)
  • the length of the head portion is 5 (mm)
  • the length of the tail portion is 18 (mm)
  • the width of the entire otic tube insertion mechanism according to the present invention The length was made of 23 (mm)
  • the one end of which the head was extended from the tail was 2.0 (mm)
  • the other end of the tail was made of 1 (mm).
  • the vertical length of the engaging portion is 4 (mm)
  • the length of the head portion is 5 (mm)
  • the length of the tail portion is 18 (mm)
  • the width of the entire tube insertion mechanism of the present invention The length was made of 23 (mm)
  • the one end of which the head was extended from the tail was 2.0 (mm)
  • the other end of the tail was made of 1.5 (mm).
  • the length of the engaging portion is 4 (mm)
  • the length of the head portion is 5 (mm)
  • the length of the tail portion is 18 (mm)
  • the width of the entire otic tube insertion mechanism according to the present invention The length was made of 23 (mm)
  • one end of the head extending from the tail was 2.5 (mm) and the other end of the tail was made of 2.0 (mm).
  • the ear canal insertion mechanism manufactured by the first embodiment tends to slip because the head portion is narrowed while one end of the tail portion is relatively narrow, so that it is difficult to form a hook in the bone portion of the ear pipe, and relatively Since the other end of the tail is wide, the flow of air entering and exiting the ear canal is weak, and there is a problem in that it is difficult to control the internal pressure of the patient.
  • the tube insertion mechanism manufactured by the second embodiment is in a form that best satisfies the relative ratios of the one end and the other end of the tail part, and the formation of a hook on the head is most natural, and the The air entering and exiting was most easily flowed, and the problem caused by the telangiectasia could be solved.
  • the tube insertion mechanism manufactured by the third embodiment had a problem in that it was difficult to control the internal pressure of the patient because the flow of air entering and leaving the tube was weakened while the other end of the tail was relatively wide.
  • the tube insertion mechanism manufactured by the fourth embodiment has a very large size at one end and the other end of the tail, so the flow of air entering and leaving the tube is weak, making it difficult to control the patient's internal pressure. There was a problem.
  • the ear canal insertion mechanism manufactured in the second embodiment (FIG. 5) is most preferable.
  • the cross section is provided in an oval shape, and when inserted into the ear canal, a part of the ellipse is provided to abut the ear canal to prevent slipping of the ear canal insertion mechanism and is most suitable for patients with bichroic opening.
  • the cross-section is rectangular, but the corners are smoothly provided, and it is inserted into the ear canal more easily than in the form of (c). It was found not suitable.
  • the cross section of the tail is manufactured in a circular shape.
  • the present invention can be used in the middle ear canal inlet plug or catheter insertion technique, and can be provided in the ear canal insertion mechanism that can be permanently used by being inserted into the canal.
  • the present invention can provide a tube insertion mechanism provided with a locking portion so as not to slip or fall out of the tube during sneezing or movement of the patient.
  • the present invention can provide the most effective size of the tube insertion mechanism that alleviates the symptoms of telangiectasia but does not block the flow of air in the tube.
  • the present invention can provide a tube insertion mechanism in which a material that can be seen on X-rays is inserted into any one or more of the locking portion, the head portion, and the tail portion and is visible on the X-ray.
  • the present invention can provide a tube insertion mechanism coated with a steroid on one or more of the engaging portion, the head portion and the tail portion.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Vascular Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Otolaryngology (AREA)
  • Public Health (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Physics & Mathematics (AREA)
  • Psychology (AREA)
  • Biophysics (AREA)
  • Pulmonology (AREA)
  • Cardiology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Transplantation (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Abstract

La présente invention concerne un dispositif destiné à être inséré dans la trompe d'Eustache, et un dispositif à insérer dans la trompe d'Eustache, apte à traiter une distension de la trompe d'Eustache, qui est un trouble dans lequel la trompe d'Eustache reste ouverte de façon intermittente ou continue. Afin d'atteindre l'objectif susmentionné, le dispositif à insérer dans la trompe d'Eustache, selon la présente invention, comprend : une partie queue qui est insérée dans la trompe d'Eustache dilatée et qui présente une section transversale formée sous une forme ovale ; une partie tête qui est divisée en deux tubes au niveau de la partie queue et qui a les deux tubes disposés selon un angle de 10 à 20°, de façon à ne pas glisser dans la trompe d'Eustache après l'insertion de la partie queue ; et des parties d'accrochage étendues à partir des deux tubes de la partie tête et pliées horizontalement de façon à être accrochées, les parties d'accrochage, la partie tête et la partie queue étant fabriquées avec du silicium, et la partie queue étant insérée par paracentèse du tympan. De plus, dans la partie queue, le rapport de longueur de la section transversale d'une partie d'extrémité, reliée à la partie tête, à la section transversale de l'autre partie d'extrémité est de 2,0:1,0. En outre, une ou plusieurs parties parmi les parties d'accrochage, la partie tête et la partie queue ont des parties de marqueur contenant des substances inorganiques ou des métaux. De plus, une ou plusieurs parties parmi les parties d'accrochage, la partie tête et la partie queue ont des surfaces revêtues d'antibiotiques. De plus, une ou plusieurs parties parmi les parties d'accrochage, la partie tête et la partie queue ont des surfaces revêtues de stéroïdes. Drawing_references_to_be_translated
PCT/KR2019/010250 2018-10-30 2019-08-13 Dispositif destiné à être inséré dans une trompe d'eustache Ceased WO2020091202A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2018-0131352 2018-10-30
KR1020180131352A KR20200048824A (ko) 2018-10-30 2018-10-30 이관 삽입 기구

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WO2020091202A1 true WO2020091202A1 (fr) 2020-05-07

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WO (1) WO2020091202A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102878367B1 (ko) * 2023-06-07 2025-10-28 연세대학교 산학협력단 고막 환기관 이관 플러그 조립체

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4015607A (en) * 1976-01-23 1977-04-05 Wright Iii J William Eustachian tube prosthesis and method for its implantion
JPS6228972Y2 (fr) * 1975-08-14 1987-07-25
JP2002224157A (ja) * 2001-02-06 2002-08-13 Koken Co Ltd 耳管ピン
US20130245569A1 (en) * 2012-03-15 2013-09-19 Med-El Elektromedizinische Geraete Gmbh Accessory Device for Inner Ear Drug Delivery
CN206453901U (zh) * 2016-11-14 2017-09-01 中国人民解放军第四军医大学 一种咽鼓管障碍治疗装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101736555B1 (ko) 2014-12-24 2017-05-17 주식회사 포스코 용손 방지용 주조 장치

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6228972Y2 (fr) * 1975-08-14 1987-07-25
US4015607A (en) * 1976-01-23 1977-04-05 Wright Iii J William Eustachian tube prosthesis and method for its implantion
JP2002224157A (ja) * 2001-02-06 2002-08-13 Koken Co Ltd 耳管ピン
US20130245569A1 (en) * 2012-03-15 2013-09-19 Med-El Elektromedizinische Geraete Gmbh Accessory Device for Inner Ear Drug Delivery
CN206453901U (zh) * 2016-11-14 2017-09-01 中国人民解放军第四军医大学 一种咽鼓管障碍治疗装置

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