CN107997875A - A kind of sound insulation and noise reduction earmuff for magnetic resonance examination - Google Patents
A kind of sound insulation and noise reduction earmuff for magnetic resonance examination Download PDFInfo
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- CN107997875A CN107997875A CN201710723026.2A CN201710723026A CN107997875A CN 107997875 A CN107997875 A CN 107997875A CN 201710723026 A CN201710723026 A CN 201710723026A CN 107997875 A CN107997875 A CN 107997875A
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- sound insulation
- sound wave
- case
- noise reduction
- magnetic resonance
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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
- A61F11/06—Protective devices for the ears
- A61F11/14—Protective devices for the ears external, e.g. earcaps or earmuffs
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
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- General Health & Medical Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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- Public Health (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Vascular Medicine (AREA)
- Psychology (AREA)
- Otolaryngology (AREA)
- High Energy & Nuclear Physics (AREA)
- Acoustics & Sound (AREA)
- Radiology & Medical Imaging (AREA)
- Pathology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Abstract
The present invention relates to a kind of sound insulation and noise reduction earmuff for magnetic resonance examination, the left and right ends of ear clip are connected to an earmuff body, earmuff body includes a case, the inner face of case is provided with a sound insulation cushion, damping unit is provided with case, the damping unit and both ends contradict respectively on the two side of case, the outer end face of the close soft viscous interlayer in hole is provided with a sound wave reflector, the inner face and outer end face of sound wave reflector are in symmetrical depression cambered surface, and the surface polishing of the depression cambered surface, the boring of sound wave reflector and be vacuum, ear clip is connected to the upper end of sound wave reflector.Present inventive concept is novel, design is reasonable and easy to operation; the effect for by noise sound wave and vibration at many levels mitigate and eliminate by setting gradually sound insulation cushion, case, damping unit, the soft viscous interlayer harmony wave reflection body in close hole; work well; the health of patient is protected, alleviates the psychological pressure of patient.
Description
Technical field
The present invention relates to the field of medical instrument technology, more particularly to a kind of sound insulation and noise reduction earmuff for magnetic resonance examination.
Background technology
Magnetic resonance imaging is the progressive again of the medical image after CT, radiationless property and is checked in terms of nervous system
Advantage cause this technology using more and more extensive.Hospital is also increasingly common at home for this equipment.Although magnetic resonance is examined
Look into original advantage, but its noise problem produced can not be ignored, the noise produced by gradient coil resonance is up to 80
Decibel.In view of in magnetic resonance examination, the damage of the noise of confined environment to auditory nerve, and outpatients mental state state is done
Disturb.A kind of vibration and noise reducing device is developed, it is necessary.
There are pull grid type individual noise reduction earflap and its preparation of Application No. CN201510524493.3 in the prior art
Technique discloses a kind of individual noise reduction earflap, which includes the materials such as sound insulation piece, light sensitivity compound resin layer, suitable for a variety of
Individual noise reduction, has certain noise reduction capability under working environment, but under the environment that resonates, can not effective vibration damping, with one
Fixed limitation.
The content of the invention
The technical problems to be solved by the invention are in view of the deficiencies of the prior art, there is provided a kind of for magnetic resonance examination
Sound insulation and noise reduction earmuff.
The technical solution that the present invention solves above-mentioned technical problem is as follows：
A kind of sound insulation and noise reduction earmuff for magnetic resonance examination, including ear clip, the left and right ends of the ear clip connect respectively
There is an earmuff body, the earmuff body includes a case, and the inner face of the case is provided with a sound insulation cushion, the cover
Damping unit is provided with shell, which contradicts on the two side of the case respectively with the both ends, the cover
The rear end face of shell is provided with a close soft viscous interlayer in hole, which is made of elastic material, and the close hole is soft viscous
The outer end face of interlayer is provided with a sound wave reflector, and the inner face and outer end face of the sound wave reflector are in symmetrically recessed
Cambered surface, and the surface polishing of the depression cambered surface are fallen into, the boring of the sound wave reflector and be vacuum, the ear clip is connected to
The upper end of the sound wave reflector.
Using above technical scheme, ear clip is used for connecting two earmuff bodies, is used to support earmuff body, and be matched with patient's
On head.Support of the case as earmuff body, for setting other parts.The auricle that sound insulation cushion is used for directly with patient connects
Touch, play sealing process, prevent noise from being passed to.Damping unit is used for buffering vibration, prevents vibration from continuing to propagate, can be with
Absorb and eliminate acoustic wave segment, to play the role of noise reduction.The both ends of damping unit are directly contradicted on the side wall of case, can be had
Effect receives vibration and absorbs noise.The effect of the close soft viscous interlayer in hole is to absorb the energy of vibration and sponges sound wave transmission
Energy, further functions as the effect that noise was moved and absorbed in weakening.Sound wave reflector by depression, and polish cambered surface by sound wave into
Row reflection, mitigates the conduction of sound wave.Vacuum inside sound wave reflector can also play the role of completely cutting off sound wave.
Further, in order to play the effect of closing between the auricle of user and sound insulation cushion, so prevent noise and
Vibration is come into come the inner face of the sound insulation cushion sets toughness cushion rubber by the gap between auricle and sound insulation cushion.
Further, antivibration is carried out in order to effectively utilize piston mechanism, the damping unit includes minitype piston bar, this is micro-
Type piston rod is inserted into miniature casing, and is provided with organic silicone oil on the contact surface of the minitype piston bar and miniature casing
Coating.
Further, in order to improve antivibration effect, the quantity of the damping unit is multiple.
Further, in order to improve antivibration effect, the outer end of the inner and described minitype piston bar of the miniature casing is logical
Cross inner wall of the microsprings conflict in the case.
Further, in order to reduce the conductibility of sound wave, the sound wave reflector is made of ceramics.
Further, in order to further play reflex to sound wave, the upper surface and lower face of the sound wave reflector are equal
For concave cambered surface, and the cambered surface polishes.
Further, vibration and the effect of noise reduction are mitigated in order to further function as, the close soft viscous interlayer in hole uses latex system
Into, and aperture is densely covered with the close soft viscous interlayer in hole, and the arrangement of the aperture is in cellular.
The beneficial effects of the invention are as follows：Present inventive concept is novel, design is reasonable and easy to operation, by setting gradually sound insulation
Cushion, case, damping unit, the soft viscous interlayer harmony wave reflection body in close hole by noise sound wave and vibration carry out at many levels mitigate and
The effect of elimination, works well, and protects the health of patient, alleviates the psychological pressure of patient.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention.
Fig. 2 is the enlarged diagram of part A in Fig. 1.
Embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
A kind of sound insulation and noise reduction earmuff for magnetic resonance examination as shown in Fig. 1 to Fig. 2, has ear clip 1, a left side for ear clip 1
Right both ends are connected to an earmuff body 2.Earmuff body 2 includes a case 21, the inner face of case 21 be provided with one every
Sound cushion 22.Noise sound wave is passed to from the gap between sound insulation cushion 22 and auricle in order to prevent, the inner face of sound insulation cushion 22
Toughness cushion rubber 221 is set.Damping unit 23 is provided with case 21.In order to play the role of better antivibration anti-noise, resistance
The quantity of Buddhist nun's device 23 is multiple.The damping unit 23 and both ends contradict respectively on the two side of case 21.In order to reduce
Manufacture difficulty, and a kind of practicable structure is provided, damping unit 23 includes minitype piston bar 231, the minitype piston bar 231
It is inserted into miniature casing 232, and organic silicone oil painting is provided with the contact surface of minitype piston bar 231 and miniature casing 232
Layer.On the basis of the damping unit 23 formed using piston rod 231 and miniature casing 232, miniature casing 231 it is inner and micro-
The outer end of type piston rod 231 contradicts the inner wall in case 21 by microsprings 233.The rear end face of case 21 is provided with one
A soft viscous interlayer 25 in close hole, the close soft viscous interlayer 25 in hole are made of elastic material.In order to enable the close soft viscous interlayer 25 in hole is to shaking
Dynamic and sound wave absorption, the close soft viscous interlayer 25 in hole is made of latex, and is densely covered with aperture in the close soft viscous interlayer 25 in hole
251, and the arrangement of the aperture 251 is in cellular.The outer end face of the close soft viscous interlayer 25 in hole is provided with a sound wave reflector
24, the inner face and outer end face of sound wave reflector 24 are in symmetrical depression cambered surface, and the surface of the depression cambered surface polishes, sound
The boring of wave reflection body 24 and be vacuum, ear clip 1 is connected to the upper end of sound wave reflector 24.In order to reduce noise sound wave
With the conductibility of synchronous vibration, sound wave reflector 24 is made of ceramics, meanwhile, in order to which the reflection further improved to noise is made
With the upper surface and lower face of sound wave reflector 24 are concave cambered surface, and the cambered surface polishes.
The basic principle of the present invention is as follows：
Ear clip 1 is used for connecting two earmuff bodies 2, is used to support earmuff body 2, and be matched with the head of patient.Ear clip 1 uses
Steel wire cored structure, i.e., in ear clip 1 using the overall mechanism in shelf-like, there is hollow out in center section.The ear clip master of each shelf-like
Internal portion is formed overall shape by steel core, and then outside is enclosed with the epidermis of rubber.In order to increase the technological quality of product,
Striped can also be suppressed on the rubber epidermis.On the one hand this structure setting can mitigate overall weight, on the one hand can be with
Save material, reduce cost of manufacture, simultaneously for human body comfort also more preferably.Support of the case 21 as earmuff body 2, is used for
Other parts are set.Case 21 is equally used as an installation settings main body, general to be made of the plastics pressing mold shaping of hard.
In order to increase comfort, polishing treatment is passed through on 21 surface of case.Sound insulation cushion 22 is used for directly contacting with the auricle of patient, plays
Sealing process, prevents noise from being passed to.Sound insulation cushion can use the sponge of eyelet gap very little to be made, and can also use latex system
Into.When being made of latex, an oval loop-shaped is made in sound insulation cushion 22, and cross section is in "U" shaped, middle empty portion
Divide outwardly, the surface of protrusion is directly contacted with auricle, plays the role of closing auricle.In order to increase sound insulation cushion made of latex
22 adhesivenesses contacted with auricle, increase frictional force so that contact between the two even closer, sealing effect is more preferable, can be with
Trickle frosted is taken to handle on the surface of sound insulation cushion 22.In order to farthest block between auricle and sound insulation cushion 22
Gap, sets toughness cushion rubber 221 on sound insulation cushion 22.Sticky 221 use of cushion rubber can use latex and silica gel to be made,
By changing in the production technology of latex and silica gel, oily coating can also be smeared on sticky cushion rubber 221 so that manufactured
Sticky cushion rubber 221 has certain adhesive attraction with human body, improves soundproof effect.Damping unit 23 is used for buffering vibration, hinders
That only vibrates continues to propagate, and can also absorb and eliminate acoustic wave segment, to play the role of noise reduction.The both ends of damping unit 23 are straight
Conflict is connect on the side wall of case 21, vibration can be effectively received and absorb noise.Damping unit for eliminating sound wave and vibration
23 can use a variety of damping structures, in the present embodiment using piston bush tubular type, i.e., be inserted into miniature set by piston rod 231
Pipe 232, and vibration is buffered by piston type cooperation.Grooved hole is set on the piston of 231 end of piston rod, for connecting work
Fill in the space at two.When piston rod 231 produces mobile with piston, air can be flowed through by the slot, will not cause to block,
Into without being had an impact to damping.Organic silicone coating is also smeared inside miniature casing 232 to absorb noise, reduction rubs
Wipe, improve the reliability for absorbing vibration.Equally, both ends are dropped by microsprings 233 also for good cushioning effect is played
Low vibration influences.The effect of the close soft viscous interlayer 25 in hole is the energy for absorbing the energy of vibration and sponging sound wave transmission, into
One step plays the role of weakening and moves and absorb noise.In order to improve the using effect of the soft viscous interlayer 25 in close hole, the close hole it is soft it is viscous every
Layer 25 is made of latex, and internal aperture 251 forms honeycomb structure.Cellular structure has noise reduction in good work
With.Principle of reflection based on smooth surface, and the principle that sound wave can not be propagated in a vacuum, sound wave reflector 24 is by recessed
Fall into, and the cambered surface polished is reflected sound wave, mitigates the conduction of sound wave.Vacuum inside sound wave reflector 24 can also play every
The effect of exhausted sound wave.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on, should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of sound insulation and noise reduction earmuff for magnetic resonance examination, including ear clip (1), the left and right ends difference of the ear clip (1)
Be connected with an earmuff body (2), it is characterised in that the earmuff body (2) includes a case (21), the case (21) it is interior
End face is provided with a sound insulation cushion (22), and damping unit (23) is provided with the case (21), the damping unit (23) with
The both ends contradict on the two side of the case (21) respectively, and the rear end face of the case (21) is provided with a close hole
Soft viscous interlayer (25), the close soft viscous interlayer (25) in hole are made of elastic material, the outer end face of the close soft viscous interlayer (25) in hole
A sound wave reflector (24) is provided with, the inner face and outer end face of the sound wave reflector (24) are in symmetrical depression arc
Face, and the surface polishing of the depression cambered surface, the boring of the sound wave reflector (24) and be vacuum, ear clip (1) company
It is connected on the upper end of the sound wave reflector (24).
A kind of 2. sound insulation and noise reduction earmuff for magnetic resonance examination according to claim 1, it is characterised in that the sound insulation
The inner face of cushion (22) sets toughness cushion rubber (221).
A kind of 3. sound insulation and noise reduction earmuff for magnetic resonance examination according to claim 1, it is characterised in that the damping
Device (23) includes minitype piston bar (231), which is inserted into miniature casing (232), and described micro-
Organic silicone oil coating is provided with the contact surface of type piston rod (231) and miniature casing (232).
A kind of 4. sound insulation and noise reduction earmuff for magnetic resonance examination according to claim 3, it is characterised in that the damping
The quantity of device (23) is multiple.
5. a kind of sound insulation and noise reduction earmuff for magnetic resonance examination according to claim 4, it is characterised in that described miniature
The outer end of the inner and described minitype piston bar (231) of casing (232) is contradicted in the case by microsprings (233)
(21) inner wall.
A kind of 6. sound insulation and noise reduction earmuff for magnetic resonance examination according to claim 1, it is characterised in that the sound wave
Reflector (24) is made of ceramics.
A kind of 7. sound insulation and noise reduction earmuff for magnetic resonance examination according to claim 6, it is characterised in that the sound wave
The upper surface and lower face of reflector (24) are concave cambered surface, and the cambered surface polishes.
A kind of 8. sound insulation and noise reduction earmuff for magnetic resonance examination according to claim 1, it is characterised in that the close hole
Soft viscous interlayer (25) is made of latex, and is densely covered with aperture (251), and the aperture (251) in the close soft viscous interlayer (25) in hole
Arrangement in cellular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710723026.2A CN107997875B (en) | 2017-08-22 | 2017-08-22 | Sound-insulation noise-reduction earmuff for magnetic resonance examination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710723026.2A CN107997875B (en) | 2017-08-22 | 2017-08-22 | Sound-insulation noise-reduction earmuff for magnetic resonance examination |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107997875A true CN107997875A (en) | 2018-05-08 |
| CN107997875B CN107997875B (en) | 2020-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710723026.2A Active CN107997875B (en) | 2017-08-22 | 2017-08-22 | Sound-insulation noise-reduction earmuff for magnetic resonance examination |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5148887A (en) * | 1991-04-01 | 1992-09-22 | Gentex Corporation | Earcup assembly incorporating mechanical active noise reduction |
| CN201551453U (en) * | 2009-11-16 | 2010-08-18 | 樊长仁 | Noise-proof earphone |
| CN101945627A (en) * | 2008-02-20 | 2011-01-12 | 金伯利-克拉克环球有限公司 | The hearing protection cover |
| CN203183142U (en) * | 2013-05-03 | 2013-09-11 | 天津市吉灏科技有限公司 | Sound-proof earmuff |
| CN205144868U (en) * | 2015-10-22 | 2016-04-13 | 中国人民解放军海军医学研究所 | Two cup structure noise prevention ear muffs |
| CN105726209A (en) * | 2014-12-09 | 2016-07-06 | 张亚茹 | Straddle-type anti-noise ear plug |
| CN206007467U (en) * | 2016-04-29 | 2017-03-15 | 济南大学 | A kind of vacuum sleep ear muff |
| CN206324781U (en) * | 2016-09-13 | 2017-07-14 | 泰州市人民医院 | Neonate's nuclear magnetic resonance noise isolating cap |
| CN207785366U (en) * | 2017-08-22 | 2018-08-31 | 青岛大学附属医院 | A kind of magnetic resonance examination Acoustic baffling ear shield |
-
2017
- 2017-08-22 CN CN201710723026.2A patent/CN107997875B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5148887A (en) * | 1991-04-01 | 1992-09-22 | Gentex Corporation | Earcup assembly incorporating mechanical active noise reduction |
| CN101945627A (en) * | 2008-02-20 | 2011-01-12 | 金伯利-克拉克环球有限公司 | The hearing protection cover |
| CN201551453U (en) * | 2009-11-16 | 2010-08-18 | 樊长仁 | Noise-proof earphone |
| CN203183142U (en) * | 2013-05-03 | 2013-09-11 | 天津市吉灏科技有限公司 | Sound-proof earmuff |
| CN105726209A (en) * | 2014-12-09 | 2016-07-06 | 张亚茹 | Straddle-type anti-noise ear plug |
| CN205144868U (en) * | 2015-10-22 | 2016-04-13 | 中国人民解放军海军医学研究所 | Two cup structure noise prevention ear muffs |
| CN206007467U (en) * | 2016-04-29 | 2017-03-15 | 济南大学 | A kind of vacuum sleep ear muff |
| CN206324781U (en) * | 2016-09-13 | 2017-07-14 | 泰州市人民医院 | Neonate's nuclear magnetic resonance noise isolating cap |
| CN207785366U (en) * | 2017-08-22 | 2018-08-31 | 青岛大学附属医院 | A kind of magnetic resonance examination Acoustic baffling ear shield |
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| CN107997875B (en) | 2020-10-16 |
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