CA2234163C - Protecteur auriculaire contenant une mousse et un composant poreux et procede de fabrication correspondant - Google Patents
Protecteur auriculaire contenant une mousse et un composant poreux et procede de fabrication correspondant Download PDFInfo
- Publication number
- CA2234163C CA2234163C CA002234163A CA2234163A CA2234163C CA 2234163 C CA2234163 C CA 2234163C CA 002234163 A CA002234163 A CA 002234163A CA 2234163 A CA2234163 A CA 2234163A CA 2234163 C CA2234163 C CA 2234163C
- Authority
- CA
- Canada
- Prior art keywords
- stem
- foam
- porous
- component
- variation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000006260 foam Substances 0.000 title claims abstract description 117
- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 32
- 230000001681 protective effect Effects 0.000 title claims abstract description 26
- 230000035515 penetration Effects 0.000 claims abstract description 8
- 239000011148 porous material Substances 0.000 claims description 32
- 239000000463 material Substances 0.000 claims description 30
- 239000000203 mixture Substances 0.000 claims description 10
- 229920000642 polymer Polymers 0.000 claims description 7
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 5
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 3
- 238000013022 venting Methods 0.000 claims description 3
- 238000005187 foaming Methods 0.000 abstract description 5
- 230000001012 protector Effects 0.000 description 14
- 210000000613 ear canal Anatomy 0.000 description 10
- 238000003780 insertion Methods 0.000 description 10
- 230000037431 insertion Effects 0.000 description 10
- -1 polypropylene Polymers 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 4
- 238000004026 adhesive bonding Methods 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 229920002725 thermoplastic elastomer Polymers 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 229920005830 Polyurethane Foam Polymers 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000011496 polyurethane foam Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- ROGIWVXWXZRRMZ-UHFFFAOYSA-N 2-methylbuta-1,3-diene;styrene Chemical compound CC(=C)C=C.C=CC1=CC=CC=C1 ROGIWVXWXZRRMZ-UHFFFAOYSA-N 0.000 description 1
- VCLWNCAUAKTVII-UHFFFAOYSA-N C=C.CC=C.C=CC1=CC=CC=C1 Chemical group C=C.CC=C.C=CC1=CC=CC=C1 VCLWNCAUAKTVII-UHFFFAOYSA-N 0.000 description 1
- 241000272185 Falco Species 0.000 description 1
- 229920002633 Kraton (polymer) Polymers 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000002174 Styrene-butadiene Substances 0.000 description 1
- 241000876472 Umma Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
-
- 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
- A61F11/12—External mounting means
-
- 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
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)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Le protecteur auriculaire (10) de la présente invention contient une mousse (12) et au moins un composant poreux (14) qui est mécaniquement assemblé à ladite mousse (12). L'assemblage mécanique du composant poreux (14) se produit au cours de la fabrication lorsque l'on place ce composant poreux (14) dans une cavité de moule comme un insert, et que l'on forme une mousse (12) à l'intérieur du moule de façon à permettre une pénétration maîtrisée du composant poreux au cours de la formation de la mousse. Il est important que l'air piégé dans la cavité fermée puisse traverser le composant poreux pendant le processus de fabrication, ce qui permet audit composant poreux de jouer le rôle d'organe d'aération du moule. L'invention se rapporte également à un procédé de fabrication du protecteur auriculaire décrit ci-dessus.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/698,398 | 1996-08-15 | ||
| US08/698,398 US5799658A (en) | 1996-08-15 | 1996-08-15 | Hearing protective device comprising a foam and a porous component and method of manufacture thereof |
| PCT/US1997/014446 WO1998006362A1 (fr) | 1996-08-15 | 1997-08-14 | Protecteur auriculaire contenant une mousse et un composant poreux et procede de fabrication correspondant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2234163A1 CA2234163A1 (fr) | 1998-02-19 |
| CA2234163C true CA2234163C (fr) | 2007-04-10 |
Family
ID=38007240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002234163A Expired - Fee Related CA2234163C (fr) | 1996-08-15 | 1997-08-14 | Protecteur auriculaire contenant une mousse et un composant poreux et procede de fabrication correspondant |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2234163C (fr) |
-
1997
- 1997-08-14 CA CA002234163A patent/CA2234163C/fr not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2234163A1 (fr) | 1998-02-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |