US3513269A - Earform mold for supporting acoustic apparatus on a wearer's ear and method of making the mold - Google Patents
Earform mold for supporting acoustic apparatus on a wearer's ear and method of making the mold Download PDFInfo
- Publication number
- US3513269A US3513269A US612018A US3513269DA US3513269A US 3513269 A US3513269 A US 3513269A US 612018 A US612018 A US 612018A US 3513269D A US3513269D A US 3513269DA US 3513269 A US3513269 A US 3513269A
- Authority
- US
- United States
- Prior art keywords
- ear
- sack
- mold
- wearer
- acoustic
- 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 - Lifetime
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
- H04R25/65—Housing parts, e.g. shells, tips or moulds, or their manufacture
- H04R25/652—Ear tips; Ear moulds
- H04R25/656—Non-customized, universal ear tips, i.e. ear tips which are not specifically adapted to the size or shape of the ear or ear canal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
- H04R25/65—Housing parts, e.g. shells, tips or moulds, or their manufacture
- H04R25/658—Manufacture of housing parts
- H04R25/659—Post-processing of hybrid ear moulds for customisation, e.g. in-situ curing
Definitions
- Certain devices for supporting acoustical apparatus on the wearers head include a plastic casting of the wearers outer ear that attaches to and supports the apparatus.
- the disadvantage encountered with castings of this type is that the outer ear of each individual wearer is custom-fitted first by using quick setting compounds poured directly into or around the ear to produce a positive form and then, using transfer molding processes, by casting and machine-finishing the final casting.
- Such methods for custom fitting each individual wearer commonly require manual fitting and polishing with concomitant expense, inconvenience and delay and, as a result, have not been widely used.
- FIG. 1 is a perspective view of an earmold sack which is in the general shape of the interior region of the outer ear and which is filled with a potting compound in a liquid or moldable state with an acoustic tube which passes through the sack and including a capsule of an activator ingredient within the inner chamber of the sack;
- FIG. 2 is a cross-sectional view of a custom-molding casting showing the enclosing sack and the associated transducer, acoustic tube structure and internal capsule of potting compound activator;
- FIG. 3 is a sectional view of an earmold casting shaped about the exterior region of the outer ear showing the acoustic apparatus and acoustic receiver tube attached and positioned about the outer ear of the wearer.
- an outer sack 9 formed in the general shape of the interior region of the outer ear and including an acoustic channel 11 that runs from the tip 13 which is adapted to fit into the wearers ear canal through the body of the outer sack 9 to the apparatus attachment bushing 15.
- a resilient and biologically inert material such as silicone rubber, or the like, is preferred for the outer sack material to insure pliable conformation of the sack to the outer ear of the wearer and to insure that the potting compound 17 which may contain irritating plasticizers and acid residues is isolated from the wearers ear.
- the resilience of the sack material facilitates insertion and captivation of the apparatus outlet despite the fact that the cured potting compound may be relatively rigid.
- any convenient apparatus fastening means may be used with the present invention, for example, by cementing to the sack.
- the compound 17 may be epoxy, polyester or acrylic resins, or the like, for a relatively rigid earmold casting. A less rigid, more flexible casting, frequently desirable because of the possible entrapment of the casting by certain outer ear shapes, may be produced using activatable silicone rubber compositions.
- the potting compound 17 selected should be one which has indefinite life in the inactivated state but which may be activated chemically or by external radiation or by other such convenient means to produce a compound that sets in shape within a few minutes.
- the chemical activator 21 for the compound 17 may be contained within a rupturable capsule 19 disposed within the sack 9.
- the acoustic tube or channel 11 formed in the outer sack 9 eliminates the need for additional machine work conventionally required following completion of the earmold casting.
- This acoustic channel may be formed in the outer sack structure with a much thicker wall cross-section to prevent the channel 11 from collapsing when the outer sack 9 and activated compound 17 are pressed into the outer ear of the wearer during the casting process.
- the capsule or inner sack 19 disposed in the potting compound 17 within the outer sack 9 contains the compound activator 21 and is formed with easily fracturable walls.
- the inner sack 19 may be squeezed or pinched through the outer sack 9 to burst the walls of the inner sack 19 and release the compound activator 21.
- the activator 21 may then be diffused through the compound 17 by kneading the outer sack 9 and a characteristic colorant in the activator 21 where the outer sack 9 is transparent or translucent will aid in indicating the uniform distribution of the activator 21 through the liquid compound 17.
- the external apparatus 23 such as an earphone receiver or combination earphone-microphone transducer including an acoustic microphone tube 30 may be attached to the outer sack 9 by the bushing 15.
- the inner annular ridged flange 25 of the bushing 15 mates with the annular groove 27 around the outlet tube 29 of the apparatus 23" to hold the apparatus and sack 19 in close engagement during and after the curing of compound 17.
- the outer sack 9 is positioned in the outer ear of the wearer before the activated compound 17 begins to set up, and with the tip 13 disposed in the wearers ear canal, a gentle pressure may be exerted on the outer sack 19 during the curing process, as by pressing against the apparatus 23, in order to assure conformation of the outer sack 19 to the shape of the wears outer ear with out unnecessarily distorting it.
- An outer sack 9 of general outer ear shape thus adapts to larger outer ears by shaping to the deeper recesses of the outer ear and ear canal and also adapts to smaller outer ears by setting up in more shallow position on the outer ear.
- the compound 17 should be sufficiently set up to support the weight of the attached apparatus 23 without further manual support.
- the custom fitting of the earmold casting may thus be completed t 3 v 1 with onlya few minutes of the wearers time and without the need for additional machining, fitting or polishing.
- the outer sack 9 may be filled with thick plastic gel or clay-like compound which by pressure or kneading takes on the shape of the ear cavities suflicient to support the external apparatus '23.
- FIG. 3 shows an earmold casting in position on the back and top side of the wearers outer ear.
- the outer sack 31 of biologically inert material is generally crestcentshaped to conform to the typical shape of the external region of an individuals outer ear and is filled with an activatable potting compound 34.
- This outer sack also includes a-'rupturable capsule 33 of activator ingredient 35 disposed within the sack 31 and may include an acoustic tube 37 which passes through the sack in a manner as described in connection with the embodiments of FIGS. 1 and 2.
- the acoustic tube 37 may extend either beyond the sack 31, as shown in FIG.
- This apparatus 41 may include an earphone receiver 43, a microphone 45 and a connecting network 47 arranged in a miniature subassembly disposed to be supported on the earform casting. The upper end of this apparatus 41 may be attached to the earform casting previously activated and cast about the wearers ear as described in connection with the embodiments of FIGS.
- the lower end of the apparatus 41 may also be detachably connected to the earmold casting in the region of the wearers ear lobe and may include a swivel joint 49 or other convenient attachment means for coupling an acoustic speaker tube 51 to the microphone 45.
- a connecting cable 53 may be attached to the apparatus 41 along a natural fall-line direction away from the apparatus 41, as shown in FIG. 3.
- the receiver and microphone may be mounted directly inside the sack 31 with the receiver 41 acoustically coupled to the tube or channel 37 and with an acoustic microphone tube 51 protruding from the lower end of the crescent-shaped earmold casting adjacent the wearers ear lobe for coupling the sound emanating from the wearers mouth to the microphone 45.
- Earform molding apparatus comprising:
- a flexible outer sack substantially in'the shape of a selected region of the outer ear, the outer sack including an acoustic tube which passes through said outer sack from a tip portion thereof adapted to be positioned at the entrance to the ear canal of a wearer to a selected surface region of the outer sack adjacent a location thereon adapted to receive acoustic apparatus;
- acoustic apparatus attached to said outer sack at said selected location thereon and including an earphone receiver which is acoustically coupled to said acoustic tube at said selected surface region.
- said acoustic tube is an integral portion of the outer sack and includes walls defining said tube which are substantially thicker than the walls of said outer sack;
- said means for attaching includes fastening means disposed about said selected surface region for attaching said earphone receiver to said outer sack at said selected surface region thereon in acoustically coupled relationship to said acoustic tube.
- Earform molding apparatus comprising:
- a flexible outer sack substantially in the shape of the external region behind the outer ear
- molding material within the outer sack which is capable of retaining the particular shape of the selected region of an outer ear about which it is molded;
- said outer sack acoustic apparatus including an electrical-to-acoustical signal transducer and a first acoustic coupling tube attached at one end thereof to said electrical-to-acoustical signal transducer and disposed to pass over a portion of the top of the ear of a wearer with the other end thereof capable of being positioned at the entrance to the ear canal of the wearer;
- a microphone transducer disposed on said outer sack near the lower end thereof in a region corresponding to the ear lobe of a wearer
- a second acoustic coupling tube having one end attached to said microphone transducer and disposed to pass beneath the ear lobe of a wearer with the other end of said second acoustic coupling tube capable of being positioned adjacent a wearers mouth.
- the method of forming an earform mold for supporting acoustic apparatus within the outer ear of a wearer comprising the steps of forming a flexible enclosure substantially in the shape of a selected region of the outer ear to be molded and including as an integral portion of the enclosure an elongated tube therethrough from a tip portion thereof adapted to be positioned atthe entrance to the ear canal of a wearer to a selected surface region of the enclosure remote from said tip portion; filling the enclosure with pliable molding material; and shaping the enclosure and molding material therein about the selected region of the outer ear of a wearer. 5.
- the method as in claim 4 comprising the additional steps, performed in selected sequence, of:
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Neurosurgery (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Headphones And Earphones (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US61201867A | 1967-01-26 | 1967-01-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3513269A true US3513269A (en) | 1970-05-19 |
Family
ID=24451380
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US612018A Expired - Lifetime US3513269A (en) | 1967-01-26 | 1967-01-26 | Earform mold for supporting acoustic apparatus on a wearer's ear and method of making the mold |
Country Status (6)
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5271405U (US20110009641A1-20110113-C00116.png) * | 1975-11-20 | 1977-05-27 | ||
JPS5273605U (US20110009641A1-20110113-C00116.png) * | 1975-11-29 | 1977-06-02 | ||
US4091067A (en) * | 1972-05-17 | 1978-05-23 | Marion Health & Safety, Inc. | Process for producing an aural communications receiving device |
US4289938A (en) * | 1979-11-23 | 1981-09-15 | Zichy Theodore B R | Voice amplification apparatus |
US4617429A (en) * | 1985-02-04 | 1986-10-14 | Gaspare Bellafiore | Hearing aid |
US4712245A (en) * | 1985-01-24 | 1987-12-08 | Oticon Electronics A/S | In-the-ear hearing aid with the outer wall formed by rupturing a two-component chamber |
US4739512A (en) * | 1985-06-27 | 1988-04-19 | Siemens Aktiengesellschaft | Hearing aid |
US4828777A (en) * | 1986-05-16 | 1989-05-09 | Siemens Aktiengesellschaft | Method and apparatus for the manufacture of an otoplastic shell |
US4834927A (en) * | 1986-05-16 | 1989-05-30 | Siemens Aktiengesellschaft | Method and apparatus for producing an ear impression |
USRE33017E (en) * | 1985-02-04 | 1989-08-08 | Hearing aid | |
US4962537A (en) * | 1987-09-25 | 1990-10-09 | Siemens Aktiengesellschaft | Shape adaptable in-the-ear hearing aid |
US5008058A (en) * | 1988-01-19 | 1991-04-16 | Siemens Aktiengesellschaft | Method for manufacturing an otoplastic or an ear adaptor member |
US5321757A (en) * | 1990-08-20 | 1994-06-14 | Minnesota Mining And Manufacturing Company | Hearing aid and method for preparing same |
US5412736A (en) * | 1992-03-23 | 1995-05-02 | Keliiliki; Shawn P. | Personal audio system and earphone for same |
US5927659A (en) * | 1996-12-09 | 1999-07-27 | Cotron Corporation | In-cord detachable ear hanger for earphone |
US6719709B2 (en) | 2000-08-31 | 2004-04-13 | Abbeymoor Medical, Inc. | Diagnostic urethral assembly and method |
US20040258263A1 (en) * | 2003-04-03 | 2004-12-23 | Sonic Innovations, Inc., A Delaware Corporation | Balloon-expandable hearing device fitting system and self-expanding hearing device |
US20070009130A1 (en) * | 2001-08-10 | 2007-01-11 | Clear-Tone Hearing Aid | BTE/CIC auditory device and modular connector system therefor |
US20070064966A1 (en) * | 2001-08-10 | 2007-03-22 | Hear-Wear Technologies, Llc | BTE/CIC auditory device and modular connector system therefor |
US20070242845A1 (en) * | 2004-12-22 | 2007-10-18 | Widex As | Method of preparing a hearing aid, and a hearing aid |
US20090321177A1 (en) * | 2008-06-26 | 2009-12-31 | Welch Allyn, Inc. | Acoustic measurement tip |
US8627824B2 (en) | 2009-02-24 | 2014-01-14 | Robert Grant Koehler | Support assembly for an ear |
USD770425S1 (en) * | 2014-12-29 | 2016-11-01 | Samsung Electronics Co., Ltd. | Cap for earphone |
US20170006390A1 (en) * | 2015-06-30 | 2017-01-05 | Oticon A/S | Insert member for a hearing device |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3715082A1 (de) * | 1987-05-06 | 1988-11-17 | Siemens Ag | Verfahren und vorrichtung zur herstellung einer otoplastik |
US6671381B1 (en) | 1993-11-23 | 2003-12-30 | Gabriele Lux-Wellenhof | Sleeve for hearing aids, and a method and apparatus for testing hearing |
DE10005429A1 (de) * | 2000-02-08 | 2001-08-09 | Klaus Mittermeier | Otoplastik bzw. Ohrmulden aus Keramik |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2882348A (en) * | 1957-07-26 | 1959-04-14 | Telex Inc | Hearing aid |
US3097059A (en) * | 1960-06-23 | 1963-07-09 | Carl G Hoffman | Method for forming ear plugs for supporting hearing and receivers |
US3208102A (en) * | 1962-10-12 | 1965-09-28 | Beltone Electronics Corp | Ear impression apparatus |
US3258533A (en) * | 1962-10-16 | 1966-06-28 | Spacelabs Inc | Ear-insert microphone |
US3309447A (en) * | 1964-02-17 | 1967-03-14 | James E Wegley | Method for making foot supports |
US3375822A (en) * | 1965-02-19 | 1968-04-02 | Avco Corp | Surgical cast and method of forming and applying to a body member |
US3389232A (en) * | 1965-07-15 | 1968-06-18 | Beltone Electronics Corp | Hearing aid and ear mold assembly |
-
1967
- 1967-01-26 US US612018A patent/US3513269A/en not_active Expired - Lifetime
-
1968
- 1968-01-09 GB GB0300/68A patent/GB1206852A/en not_active Expired
- 1968-01-19 DE DE6610429U patent/DE6610429U/de not_active Expired
- 1968-01-19 DE DE1616152A patent/DE1616152C3/de not_active Expired
- 1968-01-24 FR FR1552471D patent/FR1552471A/fr not_active Expired
- 1968-01-25 SE SE00989/68A patent/SE347858B/xx unknown
- 1968-01-26 BE BE709961D patent/BE709961A/xx unknown
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2882348A (en) * | 1957-07-26 | 1959-04-14 | Telex Inc | Hearing aid |
US3097059A (en) * | 1960-06-23 | 1963-07-09 | Carl G Hoffman | Method for forming ear plugs for supporting hearing and receivers |
US3208102A (en) * | 1962-10-12 | 1965-09-28 | Beltone Electronics Corp | Ear impression apparatus |
US3258533A (en) * | 1962-10-16 | 1966-06-28 | Spacelabs Inc | Ear-insert microphone |
US3309447A (en) * | 1964-02-17 | 1967-03-14 | James E Wegley | Method for making foot supports |
US3375822A (en) * | 1965-02-19 | 1968-04-02 | Avco Corp | Surgical cast and method of forming and applying to a body member |
US3389232A (en) * | 1965-07-15 | 1968-06-18 | Beltone Electronics Corp | Hearing aid and ear mold assembly |
Cited By (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4091067A (en) * | 1972-05-17 | 1978-05-23 | Marion Health & Safety, Inc. | Process for producing an aural communications receiving device |
JPS5271405U (US20110009641A1-20110113-C00116.png) * | 1975-11-20 | 1977-05-27 | ||
JPS5273605U (US20110009641A1-20110113-C00116.png) * | 1975-11-29 | 1977-06-02 | ||
US4289938A (en) * | 1979-11-23 | 1981-09-15 | Zichy Theodore B R | Voice amplification apparatus |
US4712245A (en) * | 1985-01-24 | 1987-12-08 | Oticon Electronics A/S | In-the-ear hearing aid with the outer wall formed by rupturing a two-component chamber |
US4617429A (en) * | 1985-02-04 | 1986-10-14 | Gaspare Bellafiore | Hearing aid |
USRE33017E (en) * | 1985-02-04 | 1989-08-08 | Hearing aid | |
US4739512A (en) * | 1985-06-27 | 1988-04-19 | Siemens Aktiengesellschaft | Hearing aid |
US4834927A (en) * | 1986-05-16 | 1989-05-30 | Siemens Aktiengesellschaft | Method and apparatus for producing an ear impression |
US4828777A (en) * | 1986-05-16 | 1989-05-09 | Siemens Aktiengesellschaft | Method and apparatus for the manufacture of an otoplastic shell |
US4962537A (en) * | 1987-09-25 | 1990-10-09 | Siemens Aktiengesellschaft | Shape adaptable in-the-ear hearing aid |
US5008058A (en) * | 1988-01-19 | 1991-04-16 | Siemens Aktiengesellschaft | Method for manufacturing an otoplastic or an ear adaptor member |
US5321757A (en) * | 1990-08-20 | 1994-06-14 | Minnesota Mining And Manufacturing Company | Hearing aid and method for preparing same |
US5412736A (en) * | 1992-03-23 | 1995-05-02 | Keliiliki; Shawn P. | Personal audio system and earphone for same |
US5927659A (en) * | 1996-12-09 | 1999-07-27 | Cotron Corporation | In-cord detachable ear hanger for earphone |
US6719709B2 (en) | 2000-08-31 | 2004-04-13 | Abbeymoor Medical, Inc. | Diagnostic urethral assembly and method |
US20070064966A1 (en) * | 2001-08-10 | 2007-03-22 | Hear-Wear Technologies, Llc | BTE/CIC auditory device and modular connector system therefor |
US8976991B2 (en) | 2001-08-10 | 2015-03-10 | Hear-Wear Technologies, Llc | BTE/CIC auditory device and modular connector system therefor |
US7606382B2 (en) | 2001-08-10 | 2009-10-20 | Hear-Wear Technologies LLC | BTE/CIC auditory device and modular connector system therefor |
US20090296969A1 (en) * | 2001-08-10 | 2009-12-03 | Hear-Wear Technologies, Llc | Bte/cic auditory device and modular connector system therefor |
US9591393B2 (en) | 2001-08-10 | 2017-03-07 | Hear-Wear Technologies, Llc | BTE/CIC auditory device and modular connector system therefor |
US20100226520A1 (en) * | 2001-08-10 | 2010-09-09 | Hear-Wear Technologies, Llc | BTE/CIC Auditory Device and Modular Connector System Therefor |
US20070009130A1 (en) * | 2001-08-10 | 2007-01-11 | Clear-Tone Hearing Aid | BTE/CIC auditory device and modular connector system therefor |
US8050437B2 (en) | 2001-08-10 | 2011-11-01 | Hear-Wear Technologies, Llc | BTE/CIC auditory device and modular connector system therefor |
US8094850B2 (en) | 2001-08-10 | 2012-01-10 | Hear-Wear Technologies, Llc | BTE/CIC auditory device and modular connector system therefor |
US20040258263A1 (en) * | 2003-04-03 | 2004-12-23 | Sonic Innovations, Inc., A Delaware Corporation | Balloon-expandable hearing device fitting system and self-expanding hearing device |
US7362875B2 (en) | 2003-04-03 | 2008-04-22 | Sonic Innovations, Inc. | Balloon-expandable hearing device fitting system and self-expanding hearing device |
US20070242845A1 (en) * | 2004-12-22 | 2007-10-18 | Widex As | Method of preparing a hearing aid, and a hearing aid |
US8116493B2 (en) * | 2004-12-22 | 2012-02-14 | Widex A/S | Method of preparing a hearing aid, and a hearing aid |
US7882928B2 (en) | 2008-06-26 | 2011-02-08 | Welch Allyn, Inc. | Acoustic measurement tip |
US20090321177A1 (en) * | 2008-06-26 | 2009-12-31 | Welch Allyn, Inc. | Acoustic measurement tip |
US8627824B2 (en) | 2009-02-24 | 2014-01-14 | Robert Grant Koehler | Support assembly for an ear |
USD770425S1 (en) * | 2014-12-29 | 2016-11-01 | Samsung Electronics Co., Ltd. | Cap for earphone |
US20170006390A1 (en) * | 2015-06-30 | 2017-01-05 | Oticon A/S | Insert member for a hearing device |
CN106331968A (zh) * | 2015-06-30 | 2017-01-11 | 奥迪康有限公司 | 用于听力装置的插入件 |
US9936314B2 (en) * | 2015-06-30 | 2018-04-03 | Oticon A/S | Insert member for a hearing device |
Also Published As
Publication number | Publication date |
---|---|
DE1616152C3 (de) | 1973-09-20 |
FR1552471A (US20110009641A1-20110113-C00116.png) | 1969-01-03 |
DE1616152A1 (de) | 1972-03-16 |
GB1206852A (en) | 1970-09-30 |
DE1616152B2 (de) | 1973-02-01 |
DE6610429U (de) | 1974-01-31 |
BE709961A (US20110009641A1-20110113-C00116.png) | 1968-05-30 |
SE347858B (US20110009641A1-20110113-C00116.png) | 1972-08-14 |
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