CN110251786B - Ear and throat department auditory canal inflammation medicine applying device - Google Patents
Ear and throat department auditory canal inflammation medicine applying device Download PDFInfo
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- CN110251786B CN110251786B CN201910685381.4A CN201910685381A CN110251786B CN 110251786 B CN110251786 B CN 110251786B CN 201910685381 A CN201910685381 A CN 201910685381A CN 110251786 B CN110251786 B CN 110251786B
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- 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
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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
- A61M13/00—Insufflators for therapeutic or disinfectant purposes, i.e. devices for blowing a gas, powder or vapour into the body
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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
- A61M31/00—Devices for introducing or retaining media, e.g. remedies, in cavities of the body
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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
- A61M2210/00—Anatomical parts of the body
- A61M2210/06—Head
- A61M2210/0662—Ears
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- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
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- Vascular Medicine (AREA)
- Acoustics & Sound (AREA)
- Physics & Mathematics (AREA)
- Otolaryngology (AREA)
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- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The invention discloses a device for blocking two sides of inflammation and applying medicine by local blowing and uniform diffusion aiming at auditory canals, which is characterized in that a blocking ring is arranged at one end of a silica gel blocking head, the other end of the silica gel blocking head is of a hemispherical structure, the silica gel blocking head is of a hollow structure, an annular groove is formed in the outer side wall of the silica gel blocking head and is positioned at one end of the blocking ring, the annular groove is a trapezoidal groove, a plurality of deceleration strips are arranged in the annular groove at equal angles and are suspended at the half position of the depth of the annular groove, the deceleration strips extend along the axis of the silica gel blocking head, a plurality of injection holes are distributed in the annular groove at equal intervals along the circumferential direction and are communicated with the inside of the silica gel blocking head, the injection holes and the deceleration strips are in one-to-one correspondence, the opening width of the injection holes is gradually increased along the radial direction, a plurality of fixing rings are arranged at equal intervals on the inner wall of the silica gel blocking head, the inner wall of the silica gel plugging head is provided with a plurality of grooves.
Description
Technical Field
The invention discloses an ear and throat department auditory canal inflammation medicine applying device, relates to a device for applying medicine to inflammation wounds in auditory canals during ear and throat department auditory canal inflammation treatment, and belongs to the field of medical instruments. In particular to a device for plugging two sides of inflammation, locally blowing air to the auditory meatus and uniformly spreading medicine.
Background
At present, when medical clinical treatment is carried out, the situation of ear inflammation and the like is often met, the inflammation position needs to be treated by adding medicines for diminishing inflammation, but the auditory canal has complex structure and narrow space, so that the medicine is difficult to be directly delivered to the focus, the existing liquid medicine adopts a medicine dripping mode, the medicine action time is short, the medicine flows in the auditory canal, the hearing is influenced, the medicine application pertinence is poor, the medicine waste is large, the powder type medicine applying device is mainly used for dipping the medicine by a disposable cotton swab and then sending the medicine into the auditory canal, the medicine is applied to the inflammation position, cotton remains and adheres to the wound due to hard cotton swab material, the inflammation area is injured, the wound healing is affected, the coating is not uniform, the medicine is easy to flee outwards, the medicine application effect is affected, part of the medicine enters into the auditory meatus and is attached to the eardrum, so that hearing is damaged, and other appliances are repeatedly used, so that wound cross infection is caused;
publication No. CN105997343A discloses an auditory canal powder medicine feeding device, which comprises an auditory canal insertion tube, a medicine feeding container, a sprayer and a medicine feeding tube; the drug delivery container is positioned at the upper part of the drug delivery pipe, the sprayer is positioned at one side of the drug delivery pipe, and one end of the auditory canal insertion pipe is connected with the drug delivery pipe; this device plastics material duct insert tube, be provided with cotton head, and go out the medicine hole, powder medicine is dosed into through the metering valve and is dosed the pipe, spout powder medicine into the duct through the atomizer, again through the even coating of cotton head, the atomizer blows in the duct with powder through the air current, direct impact is attached to on the duct, cause secondary damage to the wound position, influence wound healing, and the coating of cotton head can contact with inflammation position once more, the extrusion is serious, make the powder drop by the adhesion, can not carry out comprehensive medicine loading to inflammation region, the direction of loading with medicine is open, the medicine can directly stretch into in the duct under the effect of air current, arouse the hearing trouble with the eardrum contact.
Disclosure of Invention
In order to improve the situation, the invention provides a device for plugging two sides of inflammation, locally blowing air to the auditory canal and uniformly spreading and applying medicine, and provides a medicine applying device for the auditory canal inflammation in the otolaryngological department.
The invention relates to an ear-throat ear canal inflammation medicine applicator which is realized by the following steps: the invention relates to a medicine applying device for otolaryngological auditory canal inflammation, which consists of a medicine applying coating head and a medicine transmission device, wherein the medicine applying coating head consists of a silica gel blocking head, a deceleration strip, a groove, a blocking ring, a fixing ring and a jet hole, the blocking ring is arranged at one end of the silica gel blocking head, the other end of the silica gel blocking head is of a hemispherical structure, the silica gel blocking head is of a hollow structure, an annular groove is formed in the outer side wall of the silica gel blocking head and is positioned at one end of the blocking ring, the annular groove is a trapezoidal groove, a plurality of deceleration strips are arranged in the annular groove at equal angles and are suspended at the half depth position of the annular groove, the deceleration strips extend along the axis of the silica gel blocking head, a plurality of jet holes are distributed in the annular groove at equal intervals along the circumferential direction and are communicated with the inside of the silica gel blocking head, the jet holes correspond to the deceleration strips one by one, the opening width of the jet holes gradually increases along the radial direction, a plurality of fixing rings are arranged at equal intervals on the inner wall of the silica gel blocking head, the inner wall of the silica gel sealing head is provided with a plurality of grooves, one end of each groove is communicated with the injection hole, the other end of each groove extends along the axial direction of the silica gel sealing head, the drug transmission device comprises a limiting thimble, an air exhaust hole, a drug outlet hole, an outer fixed pipe, a drug box, a drug inlet hole, a sealing ring, a driving motor, a ceramic ring, a helical blade, an inner connecting pipe, a flow gathering cover and a rotating blade, one end of the outer fixed pipe is sleeved in the silica gel sealing head and is connected through a fixing ring, one end of the outer fixed pipe is provided with a plurality of air exhaust holes and is correspondingly communicated with the grooves, a plurality of drug outlet holes are arranged on the outer fixed pipe and are in one-to-one correspondence with the injection holes, the limiting thimble is arranged in the outer fixed pipe and is positioned at the middle position, the drug box is sleeved at the other end of the outer fixed pipe and is communicated with the outer fixed pipe through a plurality of drug inlet holes, the drug box is of an annular structure, the inner connecting pipe is sleeved in the outer fixed pipe, and one end of the inner fixed pipe is hermetically connected with the other end of the outer fixed pipe through the sealing ring, the utility model discloses a ceramic seal ring, including inner-connecting siphunculus, sealing ring, the inner-connecting siphunculus is provided with ceramic ring, gathers a class cover and arranges the inner-connecting siphunculus other end in, gather the outward flange and the outer fixed pipe of class cover and laminate mutually, the inner-connecting siphunculus outer wall is arranged in to the spiral blade cover, and is located outer fixed pipe, and rotating vane arranges spacing thimble in and gathers between the class cover, and one end is fixed to be arranged in and gathers and flow to cover, the lantern ring has been provided between rotating vane and the spacing thimble.
When in use, the medicine powder is put in the medicine box and sleeved on the outer fixing pipe, so that the medicine box is communicated with the outer fixing pipe through the medicine inlet hole, the outer surface of the silica gel blocking head is wrapped with a layer of glue film, then the silica gel blocking head extends into the outer fixing pipe along the auditory canal, so that the inflammation position corresponds to the position of the annular groove, the blocking ring and the auditory canal block the inflammation position, a driving motor is started, the driving motor drives an inner communicating pipe to rotate, the inner communicating pipe drives a flow gathering cover to rotate, the medicine powder in the medicine box falls into the outer fixing pipe through the medicine inlet hole, the spiral blade on the inner communicating pipe rotates to push the medicine powder to move along the axial direction, the medicine powder is gradually pushed to the medicine outlet hole position, when the inner communicating pipe rotates, the flow gathering cover drives the rotary blade to rotate to form rotary air flow, the hollow shaft of the driving motor is communicated with the outside through the inner communicating pipe, and the air exhaust hole is formed through the rotation of the rotary blade, the air suction hole is communicated with the injection hole through the groove, and is communicated with the outer fixing tube through the medicine outlet hole, air flow enters from the air suction hole, is weakened through the buffer of the groove, and is then injected through the injection hole in a matched mode with medicine powder, when the medicine powder is injected to the annular groove, the medicine powder meets the speed reducing strip, is subjected to shunting and speed reducing, is sprayed in an area corresponding to the annular groove and is attached to an inflammation position, the speed of the medicine powder is reduced through the speed reducing strip and the air flow inhibition of the groove, the power of the sprayed medicine powder is reduced, secondary damage caused by impact on the inflammation position cannot occur, the redundant medicine powder falls into the annular groove and is taken out through the annular groove, no damage caused by residual eardrum can be caused, a glue film is peeled off from the silica gel plugging head after medicine application is completed, the silica gel plugging head is convenient to reuse, and cross infection is avoided;
the outer side wall of the silica gel blocking head is provided with an annular groove and is positioned at one end of the blocking ring, so that an annular cavity can be formed between the silica gel blocking head and the auditory canal after the silica gel blocking head enters the auditory canal, the sprayed medicine powder is guided and limited, and the medicine powder is prevented from diffusing in the auditory canal to cause waste of the medicine powder;
the annular groove is a trapezoidal groove, so that the medicinal powder can be gradually diffused, the medicine feeding area is increased, and meanwhile, the residual medicinal powder can be buffered and cleaned;
the plurality of the deceleration strips are arranged in the annular groove at equal angles and are suspended at the position of half depth of the annular groove, so that the injection flow direction of the medicinal powder can be blocked, the flow impact speed of the medicinal powder is reduced, and the secondary damage to the inflammation position is reduced;
the spraying holes correspond to the deceleration strips one to one, and the spraying holes can be matched with each other to divide the medicine powder flow sprayed along the spraying holes, so that the diffusion area of the medicine powder flow is increased, and the inflammation position is coated more uniformly;
the opening width of the injection hole is gradually increased along the radial direction, so that the medicinal powder can form a radial radiation zone during injection;
the inner wall of the silica gel plugging head is equidistantly provided with a plurality of fixing rings, so that the silica gel plugging head can be quickly disassembled, and silica gel plugging heads with different sizes are selected to adapt to different auditory canal spaces;
one end of the groove is communicated with the jet hole, so that the airflow can be divided, the flow speed and the pressure of the airflow are weakened, and the problem that the diffusion direction of the medicinal powder is difficult to control due to overlarge pressure is avoided;
the medicine box is of an annular structure, medicine can be uniformly fed in multiple directions, and medicine is uniformly fed to all positions of inflammation when medicine powder is coated;
the inner communicating pipe extends out of the outer fixing pipe and is connected with the driving motor, so that the circulation of airflow during the rotation of the rotary impeller can be met, and the influence on hearing caused by the suction of eardrum due to local negative pressure is avoided;
the purpose of uniformly applying the medicine to the ears is achieved.
Advantageous effects
The structure is simple, and the device is convenient and practical.
And secondly, the secondary damage of the auditory canal during medicine application can be relieved.
And thirdly, deviation of hearing influenced by diffusion of the medicine to the eardrum can be avoided.
And fourthly, redundant medicines can be collected, so that the medicine waste is avoided.
Drawings
Fig. 1 is a schematic structural view of an ear canal inflammation applicator in the otolaryngology department.
Fig. 2 is a three-dimensional structure view of a silica gel plugging head of an ear canal inflammation medicine applying device in the otolaryngology department.
In the attached drawings
Wherein the parts are: silica gel shutoff head (1), spacing thimble (2), aspirating hole (3), speed reduction strip (4), recess (5), block ring (6), go out medicine hole (7), external fixation pipe (8), medicine box (9), advance medicine hole (10), sealing ring (11), driving motor (12), ceramic ring (13), helical blade (14), interior siphunculus (15), solid fixed ring (16), gather flow cover (17), jet orifice (18), rotating vane (19).
The specific implementation mode is as follows:
the invention relates to a medicine applying device for inflammation of an ear canal in an otolaryngological department, which is realized by putting medicine powder in a medicine box (9) and sleeving an outer fixing tube (8) so that the medicine box (9) is communicated with the outer fixing tube (8) through a medicine inlet hole (10) when in use, wrapping a layer of glue film on the outer surface of a silica gel sealing head (1), then extending the silica gel sealing head (1) along the ear canal so that the inflammation position corresponds to the position of an annular groove, sealing the inflammation position by a sealing ring (6) and the ear canal, starting a driving motor (12), driving the driving motor (12) to drive an inner communicating tube (15) to rotate, driving an inner communicating tube (15) to drive a flow gathering cover (17) to rotate, enabling the medicine powder in the medicine box (9) to fall into the outer fixing tube (8) through the medicine inlet hole (10), and driving the medicine powder to move along the axial direction by rotating a spiral blade (14) on the inner communicating tube (15), gradually pushing the medicine powder to the position of the medicine outlet hole (7), when the inner communicating pipe (15) rotates, the flow gathering cover (17) drives the rotating blade (19) to rotate to form rotating air flow, the hollow shaft of the driving motor (12) is communicated with the outside through the inner communicating pipe (15), the air is compressed to the air pumping hole (3) through the rotation of the rotating blade (19), the air pumping hole (3) is communicated with the injection hole (18) through the groove (5) and is communicated with the medicine outlet hole (7) through the outer fixed pipe (8), the air flow enters from the air pumping hole (3), is weakened through buffering of the groove (5), then is matched with the medicine powder to be injected from the injection hole (18), when the medicine powder is injected to the annular groove, the medicine powder meets the deceleration strip (4) to carry out shunting deceleration and is sprayed in the area corresponding to the annular groove and is attached to the inflammation position, and is decelerated through the deceleration of the deceleration strip (4) and the air flow inhibition of the groove (5), the power of the sprayed medicine powder is reduced, secondary damage to inflammation positions can not be caused by impact, redundant medicine powder falls into the annular groove and is taken out through the annular groove, no damage to eardrum can be caused, the adhesive film on the silica gel sealing head (1) is peeled off after medicine application is finished, reuse is facilitated, and cross infection is avoided;
the outer side wall of the silica gel blocking head (1) is provided with an annular groove, and the annular groove is positioned at one end of the blocking ring (6), so that an annular cavity can be formed between the silica gel blocking head (1) and the auditory canal after the silica gel blocking head enters the auditory canal, the sprayed medicine powder is guided and limited, and the medicine powder is prevented from diffusing in the auditory canal to cause waste of the medicine powder;
the annular groove is a trapezoidal groove, so that the medicinal powder can be gradually diffused, the medicine feeding area is increased, and meanwhile, the residual medicinal powder can be buffered and cleaned;
the plurality of deceleration strips (4) are arranged in the annular groove at equal angles and are suspended at the position of half the depth of the annular groove, so that the ejection flow direction of the medicinal powder can be blocked, the flow impact speed of the medicinal powder is reduced, and the secondary damage to inflammation is reduced;
the injection holes (18) correspond to the deceleration strips (4) one by one, and the injection holes can be matched with each other to divide the medicine powder flow injected along the injection holes (18), so that the diffusion area of the medicine powder flow is increased, and the inflammation position is coated more uniformly;
the opening width of the injection hole (18) is gradually increased along the radial direction, so that the medicinal powder can form a radial radiation zone during injection;
the inner wall of the silica gel plugging head (1) is equidistantly provided with a plurality of fixing rings (16), so that the silica gel plugging head (1) can be quickly disassembled, and the silica gel plugging heads (1) with different sizes can be rotated to adapt to different auditory canal spaces;
one end of the groove (5) is communicated with the jet hole (18), so that airflow can be divided, the flow velocity and pressure of the airflow are weakened, and the problem that the diffusion direction of the medicinal powder is difficult to control due to overlarge pressure is avoided;
the medicine box (9) is of an annular structure, medicine can be uniformly fed in multiple directions, and medicine is uniformly fed to all positions of inflammation when medicine powder is coated;
the inner communicating pipe (15) extends out of the outer fixing pipe (8) and is connected with the driving motor (12), so that the circulation of airflow during the rotation of the rotary impeller can be met, and the influence on hearing caused by the suction of eardrum due to local negative pressure is avoided;
the purpose of uniformly applying the medicine to the ears is achieved.
Claims (7)
1. The utility model provides an otolaryngology branch of academic or vocational study duct inflammation ware of adding medicine, characterized by: comprises medicine coating head and medicine transmission device, and medicine coating head comprises silica gel shutoff head, speed reduction strip, recess, seals fender ring, solid fixed ring and jet orifice, and silica gel shutoff head one end is arranged in to the fender ring, and the silica gel shutoff head other end is hemisphere structure, silica gel shutoff head is hollow structure, and it has the ring channel to open on the silica gel shutoff head lateral wall, and is located shutoff ring one end, and a plurality of jet orifices distribute along circumference equidistance in arranging the ring channel in, and be linked together with silica gel shutoff head inside, jet orifice and speed reduction strip one-to-one, silica gel shutoff head inner wall equidistance have been put a plurality of solid fixed rings, and silica gel shutoff head inner wall is opened has a plurality of recesses, recess one end and jet orifice intercommunication, the other end are along silica gel shutoff head axial extension, medicine transmission device by spacing thimble, aspirating hole, medicine outlet, outer fixed pipe, medicine box, medicine inlet hole, sealing ring, driving motor, The device comprises a ceramic ring, a helical blade, an inner connecting pipe, a flow gathering cover and a rotating blade, wherein one end of the outer fixing pipe is sleeved in a silica gel blocking head and is connected through a fixing ring, one end of the outer fixing pipe is provided with a plurality of air exhaust holes which are correspondingly communicated with grooves, a plurality of medicine outlet holes are arranged on the outer fixing pipe and are in one-to-one correspondence with injection holes, a limiting thimble is arranged in the outer fixing pipe and is positioned at the middle position, a medicine box is sleeved at the other end of the outer fixing pipe and is communicated with the outer fixing pipe through a plurality of medicine inlet holes, the inner connecting pipe is sleeved in the outer fixing pipe, one end of the inner connecting pipe is hermetically connected with the other end of the outer fixing pipe through a sealing ring, the inner connecting pipe extends out of the outer fixing pipe and is connected with a driving motor, the driving motor is a hollow shaft motor, the ceramic ring is arranged between the inner connecting pipe and the sealing ring, the flow gathering cover is arranged at the other end of the inner connecting pipe, the outer edge of the flow gathering cover is attached to the outer fixing pipe, the spiral blade is sleeved on the outer wall of the inner communicating pipe and is positioned in the outer fixed pipe, the rotating blade is arranged between the limiting thimble and the flow gathering cover, and one end of the rotating blade is fixedly arranged on the flow gathering cover.
2. The otolaryngological ear canal inflammation applicator of claim 1, wherein the annular groove is a trapezoidal groove.
3. The otolaryngological ear canal inflammation applicator of claim 1, wherein the plurality of deceleration strips are disposed in the annular groove at equal angles and suspended at a position half the depth of the annular groove.
4. The otolaryngological ear canal inflammation applicator of claim 3, wherein the deceleration strip extends along the axis of the silicone block head.
5. The otolaryngological ear canal inflammation applicator of claim 1, wherein the opening width of the ejection hole is gradually increased in a radial direction.
6. The otolaryngological ear canal inflammation applicator of claim 1, wherein the cartridge is of annular configuration.
7. The otolaryngological ear canal inflammation applicator of claim 1, wherein a collar is disposed between the rotary blade and the retaining spike.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910685381.4A CN110251786B (en) | 2019-07-27 | 2019-07-27 | Ear and throat department auditory canal inflammation medicine applying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910685381.4A CN110251786B (en) | 2019-07-27 | 2019-07-27 | Ear and throat department auditory canal inflammation medicine applying device |
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| CN110251786A CN110251786A (en) | 2019-09-20 |
| CN110251786B true CN110251786B (en) | 2022-01-18 |
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| CN201910685381.4A Active CN110251786B (en) | 2019-07-27 | 2019-07-27 | Ear and throat department auditory canal inflammation medicine applying device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE544626C2 (en) * | 2020-03-05 | 2022-09-27 | Nub Group Ab | An earplug for administering a fluid agent into an ear canal |
| CN112998948B (en) * | 2021-02-25 | 2023-08-08 | 姚仁才 | Ear canal drying and cleaning device |
| CN114099927B (en) * | 2021-12-09 | 2024-07-02 | 江苏省中医院重庆医院(重庆市永川区中医院) | Auditory canal sliver spiral stuffing device |
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| CN204798611U (en) * | 2015-06-19 | 2015-11-25 | 綦进颜 | Otolaryngology patient is with ware of adding medicine to |
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| CN209154860U (en) * | 2018-05-31 | 2019-07-26 | 佛山市佳联达医疗器械有限公司 | A kind of ear-nose-throat department ear canal powder medicine applying instrument |
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| US7361168B2 (en) * | 2004-04-21 | 2008-04-22 | Acclarent, Inc. | Implantable device and methods for delivering drugs and other substances to treat sinusitis and other disorders |
| US8956333B2 (en) * | 2005-04-22 | 2015-02-17 | Alternamedics Llc | Medication delivery device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101370547A (en) * | 2005-12-12 | 2009-02-18 | 葛兰素集团有限公司 | Medicament dispenser |
| CN204798611U (en) * | 2015-06-19 | 2015-11-25 | 綦进颜 | Otolaryngology patient is with ware of adding medicine to |
| CN105997343A (en) * | 2016-04-29 | 2016-10-12 | 罗建芬 | Device for applying powder medicine in auditory meatus |
| CN208641520U (en) * | 2018-03-09 | 2019-03-26 | 中国人民解放军军事科学院军事医学研究院 | A kind of nose spray drug delivery device |
| CN108568028A (en) * | 2018-05-08 | 2018-09-25 | 汪凌峰 | A kind of department of stomatology chemical spraying device |
| CN208823765U (en) * | 2018-05-29 | 2019-05-07 | 孙晓慧 | A kind of ear-nose-throat department chemical sprayer |
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| CN110251786A (en) | 2019-09-20 |
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