ZA200506288B - A method of forming an earplug by laser ablation and a earplug formed thereby - Google Patents
A method of forming an earplug by laser ablation and a earplug formed thereby Download PDFInfo
- Publication number
- ZA200506288B ZA200506288B ZA200506288A ZA200506288A ZA200506288B ZA 200506288 B ZA200506288 B ZA 200506288B ZA 200506288 A ZA200506288 A ZA 200506288A ZA 200506288 A ZA200506288 A ZA 200506288A ZA 200506288 B ZA200506288 B ZA 200506288B
- Authority
- ZA
- South Africa
- Prior art keywords
- earplug
- cavity
- stem
- channel
- sound attenuating
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 57
- 238000000608 laser ablation Methods 0.000 title claims description 21
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 10
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 5
- 239000001569 carbon dioxide Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 description 26
- 238000002679 ablation Methods 0.000 description 21
- 238000004891 communication Methods 0.000 description 15
- 239000012858 resilient material Substances 0.000 description 15
- 230000015572 biosynthetic process Effects 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 12
- 238000000465 moulding Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 11
- 210000000613 ear canal Anatomy 0.000 description 10
- 238000005266 casting Methods 0.000 description 7
- 238000001125 extrusion Methods 0.000 description 6
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000000059 patterning Methods 0.000 description 4
- 238000011065 in-situ storage Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000000644 propagated effect Effects 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000003454 tympanic membrane Anatomy 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
- B23K26/382—Removing material by boring or cutting by boring
- B23K26/389—Removing material by boring or cutting by boring of fluid openings, e.g. nozzles, jets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
- B29C66/126—Tenon and mortise joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/53—Joining single elements to tubular articles, hollow articles or bars
- B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
- B29C66/5344—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially annular, i.e. of finite length, e.g. joining flanges to tube ends
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/61—Joining from or joining on the inside
- B29C66/612—Making circumferential joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/30—Organic material
- B23K2103/42—Plastics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/50—Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
- B29C66/727—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being porous, e.g. foam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/737—Articles provided with holes, e.g. grids, sieves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/753—Medical equipment; Accessories therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49995—Shaping one-piece blank by removing material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Optics & Photonics (AREA)
- Psychology (AREA)
- Vascular Medicine (AREA)
- Biophysics (AREA)
- Otolaryngology (AREA)
- Plasma & Fusion (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Acoustics & Sound (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Laser Surgery Devices (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
- Headphones And Earphones (AREA)
- Laser Beam Processing (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/346,604 US7370655B2 (en) | 2003-01-17 | 2003-01-17 | Method of forming an earplug by laser ablation and an earplug formed thereby |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA200506288B true ZA200506288B (en) | 2006-04-26 |
Family
ID=32712190
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA200506288A ZA200506288B (en) | 2003-01-17 | 2005-08-04 | A method of forming an earplug by laser ablation and a earplug formed thereby |
Country Status (12)
Country | Link |
---|---|
US (2) | US7370655B2 (fr) |
EP (2) | EP2260806B1 (fr) |
JP (1) | JP2007501130A (fr) |
CN (2) | CN100411599C (fr) |
AU (1) | AU2004207440B8 (fr) |
BR (1) | BRPI0406768B8 (fr) |
CA (1) | CA2513175C (fr) |
NO (1) | NO20053625L (fr) |
PL (1) | PL214681B1 (fr) |
RU (1) | RU2336855C2 (fr) |
WO (1) | WO2004066895A1 (fr) |
ZA (1) | ZA200506288B (fr) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1212023B1 (fr) * | 2000-05-31 | 2005-09-28 | Cabot Safety Intermediate Corporation | Procede servant a appliquer un motif decoratif a des bouchons d'oreille |
US7837005B2 (en) * | 2006-03-21 | 2010-11-23 | Etymotic Research, Inc. | Mushroom-shaped push-in foam eartip for use with high-fidelity insert earphones |
US7984716B2 (en) | 2007-06-22 | 2011-07-26 | Kimberly-Clark Worldwide Inc. | Self-conforming sound attenuation earplug |
US8113207B2 (en) | 2008-08-22 | 2012-02-14 | Kimberly-Clark Worldwide, Inc. | Self-conforming sound attenuation earplug |
EP2437701A4 (fr) * | 2009-06-03 | 2012-11-21 | Sperian Hearing Prot Llc | Embouts auriculaires en mousse sans rouler |
US9198800B2 (en) | 2009-10-30 | 2015-12-01 | Etymotic Research, Inc. | Electronic earplug for providing communication and protection |
US9445177B2 (en) | 2013-11-18 | 2016-09-13 | 3M Innovative Properties Company | Hearing device tether with acoustic decoupling section |
USD733676S1 (en) | 2013-11-18 | 2015-07-07 | 3M Innovative Properties Company | Hearing device tether acoustic decoupling section |
CN109069298B (zh) | 2016-04-01 | 2021-08-10 | 3M创新有限公司 | 听力保护装置及形成其的方法 |
JP7273799B2 (ja) * | 2017-09-01 | 2023-05-15 | スリーエム イノベイティブ プロパティズ カンパニー | 耳栓組立品及びその製造方法 |
Family Cites Families (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59194915A (ja) | 1983-04-15 | 1984-11-05 | Tokico Ltd | ワ−ク移送装置 |
DK159190C (da) | 1988-05-24 | 1991-03-04 | Steen Barbrand Rasmussen | Oereprop til stoejbeskyttet kommunikation mellem brugeren af oereproppen og omgivelserne |
US4915981A (en) | 1988-08-12 | 1990-04-10 | Rogers Corporation | Method of laser drilling fluoropolymer materials |
US4936411A (en) | 1988-08-19 | 1990-06-26 | Cabot Corporation | Detectable earplug |
US5044463A (en) | 1989-11-30 | 1991-09-03 | Cabot Corporation | Molded foam earplug and method for making same |
JP2879365B2 (ja) | 1990-09-14 | 1999-04-05 | 富山化学工業株式会社 | アルコール代謝促進剤 |
CN2086136U (zh) * | 1991-04-04 | 1991-10-09 | 北京航天医学工程研究所 | 带凸缘蘑菇状防噪声耳塞 |
US5792998A (en) | 1993-04-19 | 1998-08-11 | Cabot Safety Intermediate Corporation | Acoustical hearing protective devices utilizing dynamically stiff foam and methods of producing same |
US5573015A (en) | 1995-03-28 | 1996-11-12 | Williams; Colin D. | Extruded ear plug |
AU728919B2 (en) | 1996-08-15 | 2001-01-18 | Cabot Safety Intermediate Corporation | A device having rotatable legs |
JP3106106B2 (ja) | 1996-09-18 | 2000-11-06 | 日東シンコー株式会社 | マスキング材の製造方法及びマスキング材 |
NL1004758C2 (nl) | 1996-12-12 | 1998-07-02 | Fields B V | In de uitwendige gehoorgang van een mens aan te brengen geluidsdemper. |
US6148821A (en) * | 1998-04-29 | 2000-11-21 | Cabot Safety Intermediate Corporation | Selective nonlinear attenuating earplug |
NL1011877C2 (nl) | 1999-04-23 | 2000-10-24 | Groeneveld Elcea B V | Geluiddempingsfilter, gehoorbeschermer en werkwijze voor het vervaardigen van een membraan voor een geluiddempingsfilter. |
US6492616B1 (en) | 1999-05-24 | 2002-12-10 | Nippon Steel Chemical Co., Ltd. | Processes for laser beam machining of resin film for wiring boards and manufacture of wiring boards |
JP2001079677A (ja) | 1999-09-13 | 2001-03-27 | Akoo Kiko:Kk | 合成樹脂弾性体シートの穿孔方法及び微小孔を穿設した合成樹脂弾性体シート |
US20010027965A1 (en) | 1999-10-07 | 2001-10-11 | Mccay Mary Helen | Method for gas assisted energy beam engraving of a target object |
US6691822B2 (en) | 2000-04-28 | 2004-02-17 | Groeneveld Elcea B.V. | Sound damping filter, ear protector, and method for manufacturing a membrane for a sound damping |
EP1212023B1 (fr) | 2000-05-31 | 2005-09-28 | Cabot Safety Intermediate Corporation | Procede servant a appliquer un motif decoratif a des bouchons d'oreille |
JP2001340498A (ja) | 2000-06-06 | 2001-12-11 | Bridgestone Sports Co Ltd | ゴルフボールへのマーキング方法 |
JP4298895B2 (ja) | 2000-06-22 | 2009-07-22 | 株式会社ブリヂストン | ローラのマーキング方法、並びにローラのマンドレルからの脱型及びマーキング装置 |
AU2000272660B2 (en) * | 2000-09-25 | 2006-02-16 | Phonak Ag | Hearing Device and Method of Production |
US6533062B1 (en) | 2000-09-25 | 2003-03-18 | Phonak Ag | Production process for custom-moulded ear-plug devices |
US6484842B1 (en) | 2000-09-25 | 2002-11-26 | Phonak Ag | Custom-molded ear-plug, and process for producing a custom-molded ear-plug device |
US6595317B1 (en) | 2000-09-25 | 2003-07-22 | Phonak Ag | Custom-moulded ear-plug device |
US6408981B1 (en) | 2000-09-27 | 2002-06-25 | Saint-Gobain Performance Plastics Corporation | Extruded monolithic foam earplug |
JP2001205473A (ja) | 2000-12-01 | 2001-07-31 | Oomu Corporation:Kk | レーザーシステムによる彫刻方法 |
JP2002200109A (ja) | 2000-12-29 | 2002-07-16 | Masao Sakai | 耳栓、イヤホーンへの取り付け具及びイヤホーン |
JP2002291794A (ja) | 2001-04-02 | 2002-10-08 | Mimii Denshi Kk | 耳せんの構造 |
US20030029460A1 (en) | 2001-08-10 | 2003-02-13 | Jim Tiemens | Extruded earplug |
US20030075185A1 (en) | 2001-10-18 | 2003-04-24 | Ulbrich Volker R. | Extruded earplugs with printed indicia |
JP4124133B2 (ja) | 2004-02-09 | 2008-07-23 | 独立行政法人 日本原子力研究開発機構 | オキサペンタンジアミン化合物により1−6M硝酸溶液中のNp(IV),Pu(III),Pu(IV),Am(III),及びCm(III)を一括抽出分離する方法 |
-
2003
- 2003-01-17 US US10/346,604 patent/US7370655B2/en active Active
-
2004
- 2004-01-08 EP EP10182106.4A patent/EP2260806B1/fr not_active Expired - Lifetime
- 2004-01-08 PL PL376308A patent/PL214681B1/pl unknown
- 2004-01-08 CN CNB2004800023154A patent/CN100411599C/zh not_active Expired - Fee Related
- 2004-01-08 EP EP04700903.0A patent/EP1587469B1/fr not_active Expired - Lifetime
- 2004-01-08 CN CNB2008100845642A patent/CN100566684C/zh not_active Expired - Fee Related
- 2004-01-08 RU RU2005126041/14A patent/RU2336855C2/ru not_active IP Right Cessation
- 2004-01-08 JP JP2006536518A patent/JP2007501130A/ja active Pending
- 2004-01-08 WO PCT/US2004/000507 patent/WO2004066895A1/fr active Application Filing
- 2004-01-08 AU AU2004207440A patent/AU2004207440B8/en not_active Expired
- 2004-01-08 BR BRPI0406768A patent/BRPI0406768B8/pt not_active IP Right Cessation
- 2004-01-08 CA CA2513175A patent/CA2513175C/fr not_active Expired - Fee Related
-
2005
- 2005-07-26 NO NO20053625A patent/NO20053625L/no unknown
- 2005-08-04 ZA ZA200506288A patent/ZA200506288B/en unknown
-
2007
- 2007-12-19 US US11/960,587 patent/US7793663B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US20040139976A1 (en) | 2004-07-22 |
RU2005126041A (ru) | 2006-03-10 |
NO20053625D0 (no) | 2005-07-26 |
BRPI0406768B8 (pt) | 2021-06-22 |
EP1587469B1 (fr) | 2014-07-09 |
EP1587469A1 (fr) | 2005-10-26 |
EP2260806A3 (fr) | 2013-12-11 |
CA2513175A1 (fr) | 2004-08-12 |
EP2260806B1 (fr) | 2017-03-01 |
EP2260806A2 (fr) | 2010-12-15 |
PL376308A1 (en) | 2005-12-27 |
AU2004207440A1 (en) | 2004-08-12 |
CN1738583A (zh) | 2006-02-22 |
AU2004207440B2 (en) | 2009-12-17 |
BRPI0406768B1 (pt) | 2016-09-13 |
CN100566684C (zh) | 2009-12-09 |
JP2007501130A (ja) | 2007-01-25 |
CA2513175C (fr) | 2011-11-08 |
CN101301241A (zh) | 2008-11-12 |
PL214681B1 (pl) | 2013-09-30 |
US7370655B2 (en) | 2008-05-13 |
CN100411599C (zh) | 2008-08-20 |
AU2004207440B8 (en) | 2009-12-24 |
BRPI0406768A (pt) | 2005-12-20 |
WO2004066895A1 (fr) | 2004-08-12 |
US7793663B2 (en) | 2010-09-14 |
RU2336855C2 (ru) | 2008-10-27 |
US20080093158A1 (en) | 2008-04-24 |
NO20053625L (no) | 2005-10-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7793663B2 (en) | Method of forming an earplug by laser ablation and an earplug formed thereby | |
TW354766B (en) | Catheter tip mold and cut process | |
JPH0423885B2 (fr) | ||
ATE113192T1 (de) | Im äusseren gehörgang einsetzbares schallübertragungsgerät mit selektivem sieben, sowie verfahren zur dessen herstellung. | |
BR0006003A (pt) | Dispositivo de proteção auricular e método de fabricação de um dispositivo de proteção auricular. | |
US20050056288A1 (en) | Earplug and a method of forming an earplug | |
JP2636532B2 (ja) | ブロー成形品の穴加工装置 | |
JP2004520749A (ja) | 補聴器支持体の製造方法および補助部品 | |
US10827248B2 (en) | Earphone | |
JPH08146306A (ja) | 内視鏡湾曲管とその製造方法 | |
JP3190419B2 (ja) | 金属製筒状材の穿孔方法 | |
JPH09207201A (ja) | 樹脂管およびそのブロー成形方法 |