WO1998025558A1 - Sound damper to be adapted into the outer auditory duct of a human being - Google Patents

Sound damper to be adapted into the outer auditory duct of a human being Download PDF

Info

Publication number
WO1998025558A1
WO1998025558A1 PCT/NL1997/000692 NL9700692W WO9825558A1 WO 1998025558 A1 WO1998025558 A1 WO 1998025558A1 NL 9700692 W NL9700692 W NL 9700692W WO 9825558 A1 WO9825558 A1 WO 9825558A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube
sound damper
envelope
auditory passage
disc
Prior art date
Application number
PCT/NL1997/000692
Other languages
French (fr)
Inventor
Rudolf De Boer
Original Assignee
Fields B.V.
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 Fields B.V. filed Critical Fields B.V.
Priority to AU53471/98A priority Critical patent/AU5347198A/en
Priority to EP97950487A priority patent/EP0954265A1/en
Publication of WO1998025558A1 publication Critical patent/WO1998025558A1/en

Links

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
    • A61F11/10—Protective devices for the ears internal, e.g. earplugs inflatable or expandable

Definitions

  • the present invention relates to a sound damper for arrangement in the external auditory passage of a person, comprising a carrier which is suitable for fixing in the auditory passage, wherein the carrier is provided with a channel which extends in longitudinal direction and which is provided with a constriction.
  • Such sound dampers are generally known in the form of so-called earplugs which are manufactured from slightly flexible material and which, when arranged in the auditory passage, close it off entirely.
  • sound dampers are also known wherein the carrier is provided with a channel extending in longitudinal direction which is provided with a constriction.
  • the object of the present invention is to provide a sound damper of the above stated type, wherein the dimensions of the constriction are defined precisely and wherein they are not subject to change. This object is achieved in that the constriction is formed by a separate rigid disc is placed in the tube and provided with a hole with a defined diameter.
  • the carrier comprises an elongate tube and an envelope extending around the tube, wherein the envelope is adapted to adjust to the shape of the auditory passage such that the auditory passage is closed off by the envelope.
  • This step has the advantage that a single sound damper is suitable for everyone and does not have to be made to measure .
  • the disc is manufactured from ceramic material.
  • the disc is provided with a hole manufactured by a laser light beam.
  • figure 1 shows a cross-sectional view of a sound damper arranged in an auditory passage
  • figure 2 shows a cross-sectional view of a first embodiment of a sound damper according to the present invention
  • figure 3 shows a view similar to figure 1 of a second embodiment of the invention
  • figure 4 shows a cross-sectional view of the embodiment depicted in figure 3
  • figure 5 shows an exploded view of the embodiment depicted in figure 4.
  • figure 1 is shown a cross-section of a human ear 1 wherein a sound damper designated in its entirety by 3 is arranged in the external auditory passage 2.
  • the sound damper 3 is shown in more detail in figure 2. This shows that sound damper 3 is formed essentially by a tube 4 around which an envelope 5 is arranged and wherein a disc 6 is arranged in the interior thereof.
  • the tube 4 is manufactured from relatively rigid plastic, wherein it can be manufactured for instance by means of an injection moulding method.
  • the tube 4 is provided on one side with a shoulder 7 which is chamfered toward the front .
  • a shoulder 7 Arranged a short distance from shoulder 7 is a second shoulder 8, between which a groove 9 is created.
  • a set of chamfers 10 and tube 4 is provided with a thickened portion 11.
  • the envelope 5 is manufactured from flexible material, i.e. material which is considerably more flexible than the comparatively rigid material from which tube 4 is manufactured. This flexibility provides the possibility for the envelope to adapt to the shape and dimensions of the external auditory passage 2.
  • the envelope 5 is provided with an internal constriction 12 which fits into groove 9 and is there gripped fixedly between shoulders 7 and 8. The envelope then extends outward at a greater distance from tube 4 and still further outward the envelope 4 once again comes closer to the tube.
  • the envelope is herein provided with two internal ribs 13 , 14 which are engaged by the chamfers 10.
  • the envelope 5 is provided with a ring 15 of relatively large diameter.
  • the flexibility of envelope 5 results in the possibility of it adapting to the shape of the auditory passage. In the situation shown in full lines in figure 2 the envelope 5 is thus suitable for an auditory passage of relatively small diameter. For an auditory passage of somewhat larger diameter the envelope can be deformed to the situation shown with dashed lines.
  • the sound damper 3 is introduced into the external auditory passage 2, whereafter pressure is exerted with the fingers against the disc 15 and this is moved inward, wherein ribs 13,14 slide over the chamfers 10 and fix themselves when no further pressure is applied to the ring.
  • the user will herein continue pressing on ring 15 until a closure of the external auditory passage is obtained by the bulging envelope 5.
  • tube 4 Further arranged in tube 4 is a groove 16 extending all the way round in which is arranged the disc 6 preferably manufactured from ceramic material .
  • This disc 6 is provided with a hole 17 which is preferably arranged by means of a laser light beam. This provides the option of arranging a hole with an accurately defined diameter.
  • a disc of ceramic material it is possible to manufacture a disc from other types of material, for instance from metal, in which a hole is arranged for instance by means of drilling or other machining operation.
  • this latter material is recommended. It is noted herein that under prolonged pressure most materials yield so that when such materials are used for disc 6 there is a great likelihood of the hole 17 being deformed and the desired sound damping no longer being obtained.
  • the thickness of the ceramic disc 6 is likewise of importance for the damping.
  • the thickness of the ceramic disc together with the diameter of the orifice can herein be used to determine the desired damping.
  • this embodiment comprises an intermediate element 26 being formed of an annular body 27, to which a collar 28 is attached, but also a number of fingers 29 connected to the annular body 27 by a reduced part .
  • the sound damper according to the invention comprises an envelope 30 made of soft material having a circle-symmetrical form and comprising a substantially cylindrical part 31, a substantially flat part 32 connected thereto, from which a part 33 has been removed, and a slightly conically part 34 being located concentric to the cylindrical part. At its end an aperture has been provided.
  • the envelope 30 is provided around the intermediate element 26, after which the tube 21 is moved so far into the intermediate element 26 that it is clamped to some extent. Further, the combination thus formed is located in the auditory passage and is checked whether sufficient separation is obtained. If this is not the case the combination is removed from the auditory passage, the tube 21 is further pressed inwards, so that the fingers 29 will move in the outer direction, and the envelope 30 is diverted to the outer direction, so that the circumference thereof becomes bigger. Than it is newly fitted whether sufficient separation is obtained. This process can be repeated several times until the correct separation and fixation is obtained. Also in this embodiment a defined sound damper is obtained.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Acoustics & Sound (AREA)
  • Biophysics (AREA)
  • Otolaryngology (AREA)
  • Psychology (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Headphones And Earphones (AREA)

Abstract

The invention relates to a sound damper for arrangement in the external auditory passage of a person, comprising a carrier which is suitable for fixing in the auditory passage, wherein the carrier is provided with a channel which extends in longitudinal direction and which is provided with a constriction, wherein the constriction is formed by a separate rigid disc placed in the tube and provided with a hole with a defined diameter. The carrier preferably comprises an elongate tube and an envelope extending round the tube, wherein the envelope is adapted to adjust to the shape of the auditory passage such that the auditory passage is closed off by the envelope.

Description

SOUND DAMPER TO BE ADAPTED INTO THE OUTER AUDITORY DUCT OF A HUMAN BEING
The present invention relates to a sound damper for arrangement in the external auditory passage of a person, comprising a carrier which is suitable for fixing in the auditory passage, wherein the carrier is provided with a channel which extends in longitudinal direction and which is provided with a constriction.
Such sound dampers are generally known in the form of so-called earplugs which are manufactured from slightly flexible material and which, when arranged in the auditory passage, close it off entirely.
This causes discomfort for the wearer as a result of complete closure, whereby air pressure differences occur which are perceived by the wearer as being disagreeable. In addition, an almost complete form of sound exclusion is obtained, so that a form of isolation results.
In order to obviate these problems sound dampers are also known wherein the carrier is provided with a channel extending in longitudinal direction which is provided with a constriction.
The problems of a complete closure and the resulting air pressure differences and complete sound insulation are herein avoided. Experience has shown however that the dimensions of the constriction, i.e. the length and the diameter thereof, determine to a considerable extent the degree of sound damping.
However, in these prior art sound dampers the dimensions of the constriction depend to a great extent on the manner in which the sound damper is arranged. in the auditory passage. This can vary from person to person. The object of the present invention is to provide a sound damper of the above stated type, wherein the dimensions of the constriction are defined precisely and wherein they are not subject to change. This object is achieved in that the constriction is formed by a separate rigid disc is placed in the tube and provided with a hole with a defined diameter.
According to a first embodiment the carrier comprises an elongate tube and an envelope extending around the tube, wherein the envelope is adapted to adjust to the shape of the auditory passage such that the auditory passage is closed off by the envelope.
This step has the advantage that a single sound damper is suitable for everyone and does not have to be made to measure .
According to another preferred embodiment the disc is manufactured from ceramic material.
According to yet another preferred embodiment the disc is provided with a hole manufactured by a laser light beam.
Other attractive preferred embodiment are designated in the remaining sub-claims.
The present invention will be elucidated hereinbelow with reference to annexed drawing of embodiments, in which: figure 1 shows a cross-sectional view of a sound damper arranged in an auditory passage; figure 2 shows a cross-sectional view of a first embodiment of a sound damper according to the present invention; figure 3 shows a view similar to figure 1 of a second embodiment of the invention; figure 4 shows a cross-sectional view of the embodiment depicted in figure 3; and figure 5 shows an exploded view of the embodiment depicted in figure 4. In figure 1 is shown a cross-section of a human ear 1 wherein a sound damper designated in its entirety by 3 is arranged in the external auditory passage 2.
The sound damper 3 is shown in more detail in figure 2. This shows that sound damper 3 is formed essentially by a tube 4 around which an envelope 5 is arranged and wherein a disc 6 is arranged in the interior thereof. The tube 4 is manufactured from relatively rigid plastic, wherein it can be manufactured for instance by means of an injection moulding method.
The tube 4 is provided on one side with a shoulder 7 which is chamfered toward the front . Arranged a short distance from shoulder 7 is a second shoulder 8, between which a groove 9 is created. On the other side of tube 4 is arranged a set of chamfers 10 and tube 4 is provided with a thickened portion 11.
The envelope 5 is manufactured from flexible material, i.e. material which is considerably more flexible than the comparatively rigid material from which tube 4 is manufactured. This flexibility provides the possibility for the envelope to adapt to the shape and dimensions of the external auditory passage 2.
For this purpose the envelope 5 is provided with an internal constriction 12 which fits into groove 9 and is there gripped fixedly between shoulders 7 and 8. The envelope then extends outward at a greater distance from tube 4 and still further outward the envelope 4 once again comes closer to the tube. The envelope is herein provided with two internal ribs 13 , 14 which are engaged by the chamfers 10. On its outermost end the envelope 5 is provided with a ring 15 of relatively large diameter. As already stated, the flexibility of envelope 5 results in the possibility of it adapting to the shape of the auditory passage. In the situation shown in full lines in figure 2 the envelope 5 is thus suitable for an auditory passage of relatively small diameter. For an auditory passage of somewhat larger diameter the envelope can be deformed to the situation shown with dashed lines. For this purpose the sound damper 3 is introduced into the external auditory passage 2, whereafter pressure is exerted with the fingers against the disc 15 and this is moved inward, wherein ribs 13,14 slide over the chamfers 10 and fix themselves when no further pressure is applied to the ring. The user will herein continue pressing on ring 15 until a closure of the external auditory passage is obtained by the bulging envelope 5.
Further arranged in tube 4 is a groove 16 extending all the way round in which is arranged the disc 6 preferably manufactured from ceramic material . This disc 6 is provided with a hole 17 which is preferably arranged by means of a laser light beam. This provides the option of arranging a hole with an accurately defined diameter.
Instead of a disc of ceramic material it is possible to manufacture a disc from other types of material, for instance from metal, in which a hole is arranged for instance by means of drilling or other machining operation. However, in view of the precision required and the lifespan of the ceramic material, this latter material is recommended. It is noted herein that under prolonged pressure most materials yield so that when such materials are used for disc 6 there is a great likelihood of the hole 17 being deformed and the desired sound damping no longer being obtained.
It will be apparent that the thickness of the ceramic disc 6 is likewise of importance for the damping. The thickness of the ceramic disc together with the diameter of the orifice can herein be used to determine the desired damping.
It is also possible to arrange several ceramic discs one behind another in series in the tube, as shown in figure 3. This provides an additional possibility of adjusting the damping.
In the embodiment shown in figures 3 , 4 and 5 there is again question of a tube 21, in which a groove 22 has been provided, into which a disc 23 comprising an aperture 24 has been located. At its outer side the tube 21 comprises a collar 25.
Further, this embodiment comprises an intermediate element 26 being formed of an annular body 27, to which a collar 28 is attached, but also a number of fingers 29 connected to the annular body 27 by a reduced part .
Further, the sound damper according to the invention comprises an envelope 30 made of soft material having a circle-symmetrical form and comprising a substantially cylindrical part 31, a substantially flat part 32 connected thereto, from which a part 33 has been removed, and a slightly conically part 34 being located concentric to the cylindrical part. At its end an aperture has been provided.
When this device is located in the auditory passage, the envelope 30 is provided around the intermediate element 26, after which the tube 21 is moved so far into the intermediate element 26 that it is clamped to some extent. Further, the combination thus formed is located in the auditory passage and is checked whether sufficient separation is obtained. If this is not the case the combination is removed from the auditory passage, the tube 21 is further pressed inwards, so that the fingers 29 will move in the outer direction, and the envelope 30 is diverted to the outer direction, so that the circumference thereof becomes bigger. Than it is newly fitted whether sufficient separation is obtained. This process can be repeated several times until the correct separation and fixation is obtained. Also in this embodiment a defined sound damper is obtained.
It will be apparent that diverse changes can be made to the embodiments shown without departing from the invention.

Claims

1. Sound damper for arrangement in the external auditory passage of a person, comprising a carrier which is suitable for fixing in the auditory passage, wherein the carrier is provided with a channel which extends in longitudinal direction and which is provided with a constriction, characterized in that the constriction is formed by a separate rigid disc placed in the tube and provided with a hole with a defined diameter.
2. Sound damper as claimed in claim 1, characterized in that the carrier comprises an elongate tube and an envelope extending round the tube, wherein the envelope is adapted to adjust to the shape of the auditory passage such that the auditory passage is closed off by the envelope.
3. Sound damper as claimed in claim 2 , characterized in that the tube is manufactured from a material with a greater form retention than the material from which the envelope is manufactured.
4. Sound damper as claimed in claim 2 or 3 , characterized in that in between the tube and the envelope an intermediate element is located of which the outer circumference can be enlarged.
5. Sound damper as claimed in claim 4, characterized in that the intermediate element comprises a number of fingers which divert outwardly when the tube is pressed in the inward direction.
6. Sound damper as claimed in any of the foregoing claims, characterized in that the disc is manufactured from ceramic material .
7. Sound damper as claimed in claim 6, characterized in that the disc is provided with a hole manufactured by a laser light beam.
8. Sound damper as claimed in any of the foregoing claims, characterized in that the sound damper comprises more than one disc provided with a hole, wherein the discs are placed one behind another in the axial direction of the tube.
PCT/NL1997/000692 1996-12-12 1997-12-12 Sound damper to be adapted into the outer auditory duct of a human being WO1998025558A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU53471/98A AU5347198A (en) 1996-12-12 1997-12-12 Sound damper to be adapted into the outer auditory duct of human being
EP97950487A EP0954265A1 (en) 1996-12-12 1997-12-12 Sound damper to be adapted into the outer auditory duct of a human being

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1004758A NL1004758C2 (en) 1996-12-12 1996-12-12 Sound attenuator to be fitted in the external auditory canal of a human being.
NL1004758 1996-12-12

Publications (1)

Publication Number Publication Date
WO1998025558A1 true WO1998025558A1 (en) 1998-06-18

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PCT/NL1997/000692 WO1998025558A1 (en) 1996-12-12 1997-12-12 Sound damper to be adapted into the outer auditory duct of a human being

Country Status (4)

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AU (1) AU5347198A (en)
NL (1) NL1004758C2 (en)
WO (1) WO1998025558A1 (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1011877C2 (en) * 1999-04-23 2000-10-24 Groeneveld Elcea B V Sound attenuation filter, hearing protector and method for manufacturing a membrane for a sound attenuation filter.
DE10036559A1 (en) * 2000-07-27 2002-02-14 Wolf Karl Heinz Ear plugs, comprising soft shell to be combined with various filter units
WO2004066895A1 (en) * 2003-01-17 2004-08-12 Cabot Safety Intermediate Corporation A method of forming an earplug by laser ablation and an earplug formed thereby
EP1629809A1 (en) * 2004-08-25 2006-03-01 Phonak Ag Customized hearing protection earplug and method for manufacturing the same
WO2008132627A1 (en) * 2007-04-30 2008-11-06 Kimberly-Clark Worldwide, Inc. Self-fitting device for location in an ear canal
WO2009001231A1 (en) * 2007-06-22 2008-12-31 Kimberly-Clark Worldwide, Inc. Self-conforming sound attenuation earplug
US7478702B2 (en) 2004-08-25 2009-01-20 Phonak Ag Customized hearing protection earplug and method for manufacturing the same
WO2009033565A1 (en) * 2007-09-07 2009-03-19 Uvex Arbeitsschutz Gmbh Ear plug
US7779844B2 (en) 2006-12-15 2010-08-24 Kimberly-Clark Worldwide, Inc. Self-fitting device for location in an ear canal
US7886745B2 (en) 2008-06-30 2011-02-15 Kimberly-Clark Worldwide, Inc. Self-fitting device for location in an ear canal
US7913696B2 (en) 2008-06-30 2011-03-29 Kimberly-Clark Worldwide Inc. Self-fitting device for location in an ear canal
US8113207B2 (en) 2008-08-22 2012-02-14 Kimberly-Clark Worldwide, Inc. Self-conforming sound attenuation earplug
NL1039885C2 (en) * 2012-11-09 2014-05-12 Ontwerpstudio Dunc B V Sound damping ear protector, with a universal fitting.
FR3006583A1 (en) * 2013-06-05 2014-12-12 Cotral Lab EAR PROTECTION
CN108324426A (en) * 2018-03-26 2018-07-27 桂林市兴达光电医疗器械有限公司 A kind of ear protection device
GB2607428A (en) * 2018-03-09 2022-12-07 Earsoft Llc Eartips and earphone devices, and systems and methods therefore

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB643927A (en) * 1948-05-10 1950-09-27 Josef Zwislocki Improvements in or relating to acoustic ear-protectors
US2719523A (en) * 1954-05-25 1955-10-04 Gierke Henning E Von Ear protector
EP0112594A1 (en) * 1982-12-24 1984-07-04 de Boer, Berend Ear protector for keeping down sound and associated filter
FR2633827A1 (en) * 1988-06-20 1990-01-12 Deban Bruno Protective cover for hearing aids
EP0440572A1 (en) * 1990-02-01 1991-08-07 Francois Le Her Sound transmission device with selective filtering to be placed in the external ear canal and process of manufacturing thereof
FR2676642A1 (en) * 1991-05-22 1992-11-27 Saint Louis Inst IMPROVED HEARING PROTECTION.
WO1995015067A1 (en) * 1993-11-23 1995-06-01 Lux Wellenhof Gabriele Sheath for hearing aids, hearing aids or parts thereof provided therewith, hearing test process and device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB643927A (en) * 1948-05-10 1950-09-27 Josef Zwislocki Improvements in or relating to acoustic ear-protectors
US2719523A (en) * 1954-05-25 1955-10-04 Gierke Henning E Von Ear protector
EP0112594A1 (en) * 1982-12-24 1984-07-04 de Boer, Berend Ear protector for keeping down sound and associated filter
FR2633827A1 (en) * 1988-06-20 1990-01-12 Deban Bruno Protective cover for hearing aids
EP0440572A1 (en) * 1990-02-01 1991-08-07 Francois Le Her Sound transmission device with selective filtering to be placed in the external ear canal and process of manufacturing thereof
FR2676642A1 (en) * 1991-05-22 1992-11-27 Saint Louis Inst IMPROVED HEARING PROTECTION.
WO1995015067A1 (en) * 1993-11-23 1995-06-01 Lux Wellenhof Gabriele Sheath for hearing aids, hearing aids or parts thereof provided therewith, hearing test process and device

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1011877C2 (en) * 1999-04-23 2000-10-24 Groeneveld Elcea B V Sound attenuation filter, hearing protector and method for manufacturing a membrane for a sound attenuation filter.
EP1046382A1 (en) * 1999-04-23 2000-10-25 Groeneveld Elcea B.V. Sound damping filter, ear protector, and method for manufacturing a membrane therefore
DE10036559A1 (en) * 2000-07-27 2002-02-14 Wolf Karl Heinz Ear plugs, comprising soft shell to be combined with various filter units
CN100411599C (en) * 2003-01-17 2008-08-20 卡伯特安全介质股份有限公司 Method of forming an earplug by laser ablation and an earplug formed thereby
US7370655B2 (en) 2003-01-17 2008-05-13 Cabot Safety Intermediate Corporation Method of forming an earplug by laser ablation and an earplug formed thereby
US7793663B2 (en) 2003-01-17 2010-09-14 3M Innovative Properties Company Method of forming an earplug by laser ablation and an earplug formed thereby
WO2004066895A1 (en) * 2003-01-17 2004-08-12 Cabot Safety Intermediate Corporation A method of forming an earplug by laser ablation and an earplug formed thereby
EP2260806A3 (en) * 2003-01-17 2013-12-11 3M Innovative Properties Company A method of forming an earplug by laser ablation and an earplug formed thereby
EP2260806A2 (en) * 2003-01-17 2010-12-15 3M Innovative Properties Company A method of forming an earplug by laser ablation and an earplug formed thereby
AU2004207440B2 (en) * 2003-01-17 2009-12-17 3M Innovative Properties Company A method of forming an earplug by laser ablation and an earplug formed thereby
AU2004207440B8 (en) * 2003-01-17 2009-12-24 3M Innovative Properties Company A method of forming an earplug by laser ablation and an earplug formed thereby
EP1629809A1 (en) * 2004-08-25 2006-03-01 Phonak Ag Customized hearing protection earplug and method for manufacturing the same
US7478702B2 (en) 2004-08-25 2009-01-20 Phonak Ag Customized hearing protection earplug and method for manufacturing the same
US7779844B2 (en) 2006-12-15 2010-08-24 Kimberly-Clark Worldwide, Inc. Self-fitting device for location in an ear canal
WO2008132627A1 (en) * 2007-04-30 2008-11-06 Kimberly-Clark Worldwide, Inc. Self-fitting device for location in an ear canal
US7984716B2 (en) 2007-06-22 2011-07-26 Kimberly-Clark Worldwide Inc. Self-conforming sound attenuation earplug
WO2009001231A1 (en) * 2007-06-22 2008-12-31 Kimberly-Clark Worldwide, Inc. Self-conforming sound attenuation earplug
US8739798B2 (en) 2007-09-07 2014-06-03 Uvex Arbeitsschutz Gmbh Hearing protection earplug
WO2009033565A1 (en) * 2007-09-07 2009-03-19 Uvex Arbeitsschutz Gmbh Ear plug
US7886745B2 (en) 2008-06-30 2011-02-15 Kimberly-Clark Worldwide, Inc. Self-fitting device for location in an ear canal
US7913696B2 (en) 2008-06-30 2011-03-29 Kimberly-Clark Worldwide Inc. Self-fitting device for location in an ear canal
US8113207B2 (en) 2008-08-22 2012-02-14 Kimberly-Clark Worldwide, Inc. Self-conforming sound attenuation earplug
NL1039885C2 (en) * 2012-11-09 2014-05-12 Ontwerpstudio Dunc B V Sound damping ear protector, with a universal fitting.
FR3006583A1 (en) * 2013-06-05 2014-12-12 Cotral Lab EAR PROTECTION
GB2607428A (en) * 2018-03-09 2022-12-07 Earsoft Llc Eartips and earphone devices, and systems and methods therefore
GB2607428B (en) * 2018-03-09 2023-02-22 Earsoft Llc Eartips and earphone devices, and systems and methods therefore
US11638084B2 (en) 2018-03-09 2023-04-25 Earsoft, Llc Eartips and earphone devices, and systems and methods therefor
CN108324426A (en) * 2018-03-26 2018-07-27 桂林市兴达光电医疗器械有限公司 A kind of ear protection device

Also Published As

Publication number Publication date
AU5347198A (en) 1998-07-03
NL1004758A1 (en) 1998-06-17
NL1004758C2 (en) 1998-07-02
EP0954265A1 (en) 1999-11-10

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