WO2000070911A1 - Method of manufacturing a soft hearing aid - Google Patents
Method of manufacturing a soft hearing aid Download PDFInfo
- Publication number
- WO2000070911A1 WO2000070911A1 PCT/US2000/013276 US0013276W WO0070911A1 WO 2000070911 A1 WO2000070911 A1 WO 2000070911A1 US 0013276 W US0013276 W US 0013276W WO 0070911 A1 WO0070911 A1 WO 0070911A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hearing aid
- insert
- cavity
- electronic
- soft
- Prior art date
Links
Classifications
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- 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
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- 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
- H04R25/45—Prevention of acoustic reaction, i.e. acoustic oscillatory feedback
- H04R25/456—Prevention of acoustic reaction, i.e. acoustic oscillatory feedback mechanically
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- 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
Definitions
- SIEGLE Gregory, R., a US citizen, of 4202 Platt, Kenner, LA 70065, US;
- the present invention relates to hearing aids and more particularly to an improved hearing aid, its method of manufacture and an improved method of compensating for hearing loss. More particularly, the present invention provides an improved method and apparatus for compensating for hearing loss that uses a construction combining a mounting receptacle (for example, a receptacle or modular face plate or semi-modular face plate) with a soft polymeric body that is joined to the mounting member and which encapsulates some of the electronic hearing aid components of the apparatus, the soft polymeric body being sized and shaped to conform to the user's ear canal during use. It may be possible to use a soft polymeric material as the receptacle or face plate.
- a mounting receptacle for example, a receptacle or modular face plate or semi-modular face plate
- custom-molded ear worn hearing instruments have been limited to an "acrylic pour” process as the means of the construction.
- the ear-worn instruments have become smaller and are positioned into the bony portion of the ear canal, commonly referred to as "deep insertion technology”.
- the current trend for custom hearing aid placement is to position the instrument toward the bony portion of the ear canal.
- the ear canal can be defined as the area extending from the concha to the tympanic membrane. It is important to note that the structure of this canal consists of elastic cartilage laterally, and porous bone medially. The cartilaginous portion constitutes the outer one third of the ear canal. The medial two-thirds of the ear canal is osseous or bony. The skin of the osseous canal, measuring only about 0.2 mm in thickness, is much thinner than that of the cartilaginous canal, which is 0.5 to 1 mm in thickness.
- the difference in thickness directly corresponds to the presence of apocrine (ceruminous) and sebaceous glands found only in the fibrocartilaginous area of the canal.
- this thin-skinned thinly-lined area of the bony canal is extremely sensitive to any hard foreign body, such as an acrylic hearing instrument.
- Exacerbating the issue of placement of a hard foreign body into the osseous area of the ear canal is the ear canal's dynamic nature. It is geometrically altered by temporomandibular joint action and by changes in head position. This causes elliptical elongation (widening) of the ear canal. These alterations in canal shape vary widely from person to person.
- Canal motion makes it very difficult to achieve a comfortable, true acoustic seal with hard acrylic material.
- a leakage or "slit leak” creates an open loop between the receiver and the microphone and relates directly to an electro-acoustic distortion commonly known as feedback.
- Peripheral acoustic leakage is a complex resonator made up of many transient resonant cavities. These cavities are transient because they change with jaw motion as a function of time, resulting in impedance changes in the ear canal. These transients compromise the electro-acoustic performance.
- hard acrylic have limitations that require modification to the hard shell exterior to accommodate anatomical variants and the dynamic nature of the ear canal.
- the shell must be buffed and polished until comfort is acceptable.
- the peripheral acoustic leakage caused by these modifications results in acoustic feedback before sufficient amplification can be attained.
- Hollow shells used in today's hearing aid designs create internal or mechanical feedback pathways unique to each device.
- the resulting feedback requires electronic modifications to "tweak" the product to a compromised performance or a "pseudo-perfection” .
- programmable devices were developed. The intent was to reduce the degree of compromise, but by their improved frequency spectrum the incidence of feedback was heightened. As a result, the industry still falls well short of an audiological optimum.
- a few manufacturers have attempted all-soft, hollow shells as alternatives to acrylic, hollow shells. Unfortunately, soft vinyl materials shrink, discolor, and harden after a relatively short period of wear.
- Polyurethane has proven to provide a better acoustic seal than polyvinyl, but has an even shorter wear life (approximately three months). Silicones have a long wear life but are difficult to bond with plastics such as acrylic, a necessary process for the construction of custom hearing instruments. To date, acrylic has proven to be the only material with long term structural integrity. The fact remains, however, that the entire ear is a dynamic acoustic environment and is ill-served by a rigid material such as acrylic. Also, the acrylic hearing aids typically need to be returned to the manufacturer for major shell modifications.
- the following references are all incorporated herein by reference:
- the present invention provides a method of constructing a hearing aid and a soft hearing instrument that is solid (i.e. eliminates void spaces).
- This instrument includes a soft body portion that is truly soft, comprising an elastomer of about 3 to 55 Durometer Shore A and preferably 10- 35 Durometer Shore A.
- This product is unique in that it is solid, with the electronic components actually encapsulated or embedded within the soft fill material.
- the fill material can be a Dow Corning® MDX-4-4210 silicone or a silicone polymer distributed by Factor II, Inc. of Lakeside, Arizona, designated as product name 588A, 588B, 588V.
- the present invention provides a method that can replace traditional acrylic shell construction. Unlike the shell construction process, the ear impression is not modified, built up, or waxed. With the elimination of these steps, a more faithful reproduction of the ear impression is accomplished. With the present invention, the manufacturer should be able to produce a hearing aid body which will not need to be returned as frequently for modification as with present hard acrylic hearing aid bodies.
- the apparatus of the present invention is virtually impervious to the discoloration, cracking, and hardening experienced with polyvinyls and polyurethanes.
- the hearing aid of the present invention provides a greater range of gain before feedback occurs.
- the outer surface of the body of the present invention is preferably non-absorbent and virtually impervious to cerumen.
- in-the-ear hearing aids includes all hearing aids which have all of the electronics positioned in the ear, and thus includes hearing aid styles ranging from full concha to CIC (completely in the canal) hearing aid styles.
- the preferred embodiment of the present invention shown in the drawings is a CIC hearing aid style.
- Figure 1 is a fragmentary, perspective view of the preferred embodiment of the apparatus of the present invention showing the mounting member portion thereof;
- Figure 2 is an elevational view of the insert portion of the preferred embodiment of the apparatus of the present invention.
- Figure 3 is an elevational side view of the insert portion of Figure 2, taken along lines 3-3 of Figure 2;
- Figure 4 is a fragmentary, perspective view of a portion of the insert in Figures 2 and 3;
- Figure 5 is a fragmentary, perspective view illustrating a portion of the insert of Figures 2 and 3;
- Figure 6 is a fragmentary, elevational view of the preferred embodiment of the apparatus of the present invention illustrating the mounting member and insert portions thereof;
- Figures 7 and 8 are schematic views illustrating the method of the present invention.
- Figures 9 and 10 are additional schematic, perspective views illustrating the method of the present invention.
- Figures 11 and 12 are perspective views illustrating the final method steps of the method of the present invention including the assembly of electronic components to the soft elastomer body;
- Figure 13 is a perspective, exploded view of a second embodiment of the apparatus of the present invention;
- Figure 14 is a perspective view of the second embodiment of the apparatus of the present invention shown prior to the addition of liquid polymeric or elastomeric material to the cavity;
- Figures 15-17 are perspective, schematic views illustrating the method of the present invention.
- Figure 17 is a perspective view of the preferred embodiment of the apparatus of the present invention.
- Figure 18 is a fragmentary perspective view of a third embodiment of the apparatus of the present invention showing the mounting plate portion of the mounting member;
- Figure 19 is a perspective, fragmentary view of the third embodiment of the apparatus of the present invention illustrating one of the insert portion thereof;
- Figure 20-20A are fragmentary perspective views of the third embodiment of the apparatus of the present invention showing the receptacle portion of the mounting member;
- Figure 21-21 A are partial, sectional, fragmentary views of the receptacle of Figure 20;
- Figure 22 is a fragmentary, perspective view of the third embodiment of the apparatus of the present invention illustrative the mounting member including mounting plate and receptacle portions thereof and the insert portion thereof;
- Figure 23 is a fragmentary, perspective view of the third embodiment of the apparatus of the present invention illustrating the mounting member and insert portions thereof;
- Figure 24 is a fragmentary, perspective, exploded view of the third embodiment of the apparatus of the present invention illustrating the mounting member and insert portions thereof;
- Figure 25 is a side elevational view of the third embodiment of the apparatus of the present invention illustrating the method step of attaching the shell having a mold cavity to the mounting member and insert portions;
- Figures 26 and 27 are perspective views illustrating method steps of the present invention including the filling of the mold cavity with elastomeric material to encapsulate the inserts and support the mounting members;
- Figure 28 is a perspective view of the third embodiment of the apparatus of the present invention illustrating the step of removing the shell from the soft polymeric bodies and the removal of the insert portions;
- Figure 29 is a perspective view of the method of constructing the third embodiment of the apparatus of the present invention showing the step of inserting the electronic hearing aid components into the soft polymeric body and mounting members;
- Figure 30 is a perspective view of the third embodiment of the apparatus of the present invention.
- Figure 31 is a partial perspective view of the method of constructing the fourth embodiment of the apparatus of the present invention showing the step of coating the vent tube with a bonding enhancer;
- Figure 32 is a perspective view of the method of constructing the fourth embodiment of the apparatus of the present invention showing the step of removing the mold cavity from the mounting member and cured plastic polymeric body and removal of the hearing aid component assembly insert;
- Figures 33-35 are perspective views of the method of constructing the fourth embodiment of the apparatus of the present invention showing the step of inserting the hearing aid component assembly into the soft polymeric body; and Figure 36 is a partial perspective view of the method of constructing the fourth embodiment of the apparatus of the present invention showing the step of applying adhesive to the interface of the vent tube and mounting member.
- Figures 1-12 there can be seen a method for constructing a hearing aid apparatus that is culminated in the addition of electronic components to the hearing aid apparatus as shown in Figures 11 and 12.
- Figure 12 shows the completed hearing aid apparatus designated generally by the numeral 10.
- Hearing aid apparatus 10 is constructed with a beginning modular face plate 11 having a surface 12 and an opposing surface 13.
- a plurality of stacking pins 14 can be provided at the periphery 16 of modular face plate 11. Pins 14 enable shipments of several stacked modular face plates 11 with electronic components being placed there between.
- a central opening 15 receives insert 19 during construction using the method of the present invention.
- the modular face plate 11 also becomes a part of the apparatus 10 of the present invention after construction is completed wherein the central opening 15 receives an electronic component carrying receptacle 18.
- Modular face plate 11 has an opening 17 that receives an end portion of a vent tube as will be described more fully hereinafter.
- insert 19 The combination of modular face plate 11 and insert 19 are used to form a soft elastomeric or polymeric (e.g. silicone) body 50 that will carry electronic hearing aid components to define a hearing aid electronics package during use.
- the insert 19 is best seen in Figures 2-5.
- the insert 19 and face plate 11 are used to construct soft elastomeric or polymeric body 50 as shown in Figures 6-10.
- insert 19 includes an insert body 20 having a curved surface 21 , a pair of opposed semi-circular flat surfaces 22, 23, and flat surface 24.
- Insert body 20 includes a cylindrical bore 25 that enables insert body 20 to be mounted on elongated, coated (with e.g. Teflon® brand PTFE) wire 27.
- Insert body 20 also provides an extraction handle 26 that aids in its removal from soft polymeric body 50 after molding is complete and the soft elastomeric body has set.
- insert 19 also includes a receiver replica insert portion 28 having open ended bore 29.
- the open ended bore 29 enables the receiver replica insert 28 to be mounted on coated wire 27, as shown in Figures 2 and 3.
- each of the insert portions 20 and 28 can be adjustably, slidably mounted upon coated (e.g. Teflon®) wire 27, as indicated schematically by the arrows 30, 31 , in Figure 2. This feature enables a desired spacing between insert 20 and insert 28 to be achieved prior to construction of the soft polymeric body 50.
- the insert members 20, 28 can be of different size and configuration.
- the insert 28 is typically a receiver replica insert that can be configured to duplicate the size and shape of any number of commercially available receivers or custom receivers.
- the insert 20 is an insert that is of the size and shape of a receptacle
- Insert body 20 can be provided with a plurality of tabs 32 that fit sockets 33 next to central opening 15 as shown in Figures 1 and 5.
- Tabs 32 enable the insert body 20 to form a snap fit with modular face plate 11 at sockets 33 prior to the formation of soft polymeric body 50 using injected liquid elastomer (e.g. silicone).
- Figures 4 and 6 illustrate the attachment of insert
- mold 36 is shown being attached to modular face plate 11 as indicated by arrows 40.
- vent tube replica insert 35 has been added to face plate 11 at opening 17.
- mold 36 has been attached to modular face plate 11 using a bonding material. The construction of mold 36 and its attachment to a mounting member such as modular face plate 11 is shown and described in more detail in prior co-pending patent application serial number 09/181,540, filed October 28, 1998, which is hereby incorporated herein by reference.
- mold 36 has an outer surface 37, a wall 38, and a cavity 39. Mold 36 can be vacuum formed using a male mold and vacuum forming a sheet of heated film that conforms to the wall mold. Such a method of forming female mold 36 can be seen in our co- pending US Provisional Patent Application Serial No. 60/ , filed 12 May 2000, Attorney
- VP99128US 98029.4P9, entitled “METHOD OF MANUFACTURING A SOFT HEARING AID”, and incorporated herein by reference.
- a plurality of ports 41-45 are provided through the wall 38 as shown in Figures 7 and 8.
- syringe 46 is shown adding elastomeric liquid material 47 through needle 48 into cavity 39, as indicated by arrow 49 in Figure 9.
- the addition of elastomer 47 to cavity 39 encapsulates insert 19 and vent tube replica insert 35.
- the insert 19 and vent tube replica insert 35 can be removed as indicated in Figure 10.
- the insert 19 and vent tube replica insert 35 are shown gripped by a technician's finger 55 and thumb 56 and removed as indicated by arrow 54 from soft polymeric body 50 and mold 36.
- a vent tube cavity 52 and an electronics cavity 53 are provided in soft polymeric body 50.
- An electronics package of a number of electronic components can then be added to cavities 52, 53.
- FIGs 11 and 12 additional method steps of the present invention are shown.
- the soft polymeric body 50 is shown having an outer surface 51 after removal of mold 36 and after a trimming of modular face plate 11.
- the modular face plate 11 is trimmed so that it exactly fits the outside contour of outer surface 51 of soft polymeric body 50 as shown in Figures 11 and 12.
- the cavities 52, 53 that remain after removal of the inserts 19, 35 are replaced with electronic hearing aid components that enable the hearing aid 10 to function, including the components that are added into the cavities 52, 53 as indicated by arrows 57 in Figure 11.
- the electronic components that occupy cavities 52, 53 include e.g. battery 59, battery door 58, amplifier 60, microphone 61 , wire harness 63, receiver 64, receiver sound tube 65, and locking tabs 62 that interlock with sockets 33 of modular face plate 11.
- FIG. 10 a second embodiment of the apparatus of the present invention is shown, designated generally by the numeral 70.
- Hearing aid apparatus 70 is constructed using an alternate method.
- the hearing aid apparatus 70 begins with mold 71 having an outer surface 72, a wall 73 and a cavity 74.
- a number of ports 75 are formed through wall 73.
- a receptacle 76 that will carry electronic hearing aid components is attached to the mold wall 73 using a plurality of radially extending struts 80 as shown in Figures 13 and 14.
- the receptacle 76 includes a pair of flat walls 78, 79 and a curved wall 77. This construction provides a cavity 81 for holding a number of electronic hearing aid components. Opening 95 in receptacle 76 enables a wiring harness 84 to pass through cavity 81 and into mold cavity 74 as shown in Figures 13 and 14. The components that extend through opening 95 and are external to cavity 81 of receptacle 76 include a portion of wiring harness 84, receiver 82, and receiver sound tube 83. Opening 96 in curved wall 77 of receptacle 76 enables vent tube 86 to pass through receptacle 76 curved wall 77 so that it can communicate with cavity 81.
- the components that are contained with cavity 81 of receptacle 76 include battery 90, battery door 89, amplifier 91, microphone 92, and locking tabs 93 that form a connection with sockets 97 that are on the flat peripheral surface 98 of receptacle 76.
- the combination of the electronic components 82, 83, 84, 86, 89, 90, 91, 92 are attached to mold 71 in a temporary fashion using the radially extending struts as shown in Figures 13 and 14 and as indicated schematically by the arrow 85 in Figure 13.
- syringe 47 can be used to inject liquid polymeric or elastomeric material, such as silicone, through needle 48 into cavity 74 of mold 71.
- the cavity 74 is filled with soft polymeric or elastomeric material and encapsulates the electronic components that are below openings 95, 96. Additionally, the material injected through needle 48 surrounds receptacle 76, closely conforming to its curved wall 77 and flat walls 78, 79. The interior cavity 81 of receptacle 76 is not filled with polymeric material so that the cavity 81 can be occupied by some of the electronic hearing aid components. This construction enables replacement of the electronic hearing aid components that are contained within the cavity 81 of receptacle 76 without intrusion into the soft polymeric body 94 that is formed when the elastomeric or polymeric material in 47 injected with syringe 46 is allowed to set. In Figure 16, the radially extending struts 80 have been removed as indicated by arrows
- Arrow 88 indicates the addition of electronic hearing aid components to the cavity 81, namely battery 90, battery door 89, amplifier 91, microphone 92 and locking tabs 93.
- the completed hearing aid apparatus 70 is shown in Figure 17.
- FIGS 18-30 show a third embodiment of the apparatus of the present invention, designated generally by the numeral 100 in Figure 30.
- a mounting assembly that includes a mounting plate 99 and receptacle 112 (See Figures 20-21).
- An alternate receptacle 112A is shown in Figures 20 A and 21 A.
- the mounting plate 99 and receptacle 112 are positioned close to each other as shown in Figures 24-30 upon assembly.
- Mounting plate 99 has a central opening 101 and a periphery 102.
- the mounting plate 99 can be generally flat, providing opposed flat surfaces 103, 104.
- Receptacle 112 defines a mounting assembly with mounting plate 99 that can receive an insert such as members 27 and 28 that were described above with respect to the embodiment of Figures 1-12.
- Insert 105 is similar to the insert of the embodiment of Figures 1-12, the difference being removal of tabs 32 (see Figure 5).
- the embodiment of Figures 18-30 uses a receptacle 115 that is closely positioned to the plate 99 as shown in Figures 24-30. Insert 105 thus provides surfaces 21, 22, 23 as the insert shown in Figure 5.
- the tabs 32 have been removed.
- the insert 105 has a smooth, flat undersurface 106. Curved surface 21 fits a cavity 119 of receptacle 115 during construction using the method of the present invention.
- receptacle 112 is comprised of a pair of flanges 113, 114 and an external curved wall 115.
- An opening 116 is provided in curved wall 115.
- the flanges 13, 14 provide arc shaped edges 117 and straight edge portions 118, 119.
- Arrows 120 in Figure 22 illustrate the assembly of insert 105, mounting plate 99, and receptacle 112.
- Receptacle 124 has spaced apart semicircular walls 125, 126 that can be generally parallel to each other. External curved wall 127 spans between walls 125, 126. Opening 129 in receptacle 124 allows a wiring harness to pass there through.
- a cavity 128 is formed by walls 125, 126, 127. Each wall 125, 126 has a straight edge portion indicated as 130,
- Cavity 128 receives some electronic hearing aid components, similar to the cavity 122 of receptacle 112 (see Figures 29-30).
- FIG 23 the insert 105, mounting plate 99, and receptacle plate 112 have been assembled in operating position before molding using shell 36.
- Figures 24-27 illustrate the molding steps of forming a soft polymeric body 108 about inserts 105, 35.
- Mounting plate 99 has an opening 121 that receives vent tube insert 35.
- Insert 105 has a cylindrically shaped open ended channel 25 that receives coated wire 27.
- Arrow 123 in Figure 24 illustrates the assembly of coated wire insert 27 to cylindrically shaped opening 25 of insert 105.
- Figure 25 shows the completed assembly of mounting plate 99, receptacle 112, insert 105, and insert 35.
- shell 35 is shown being lowered in the direction of arrows 107 until it fits over the inserts 105, 35, and registers against the flat surface 103 of mounting plate 99 as shown in Figures 26 and 27.
- the inserts 105, 35 extend through openings in the shell 36 so that when the inserts 35, 105 are removed after the soft polymeric body 108 is formed, they will leave behind recesses to be occupied by electronic hearing aid components.
- needle 48 is shown injecting elastomeric material (e.g. silicone) as indicated by the arrows 49 to the mold cavity formed inside of shell 36.
- elastomeric material 47 in Figure 27 is allowed to set, shell 36 is removed as shown by arrows 124 in Figure 28.
- a user then removes the inserts 35, 105 using thumb and forefinger 55, 56 as shown in Figure 28.
- the arrow 54 in Figure 28 indicates schematically the removal of the inserts to leave behind cavities 109, 110.
- a user or technician uses his or her thumb and finger 55, 56 to pull an electronic hearing aid package into the cavities 109, 110 in soft body 108.
- these components can include, for example battery door 58, battery 59, amplifier 60, microphone 61, wire harness 63, receiver 64, receiver sound tube 65, and vent tube 66.
- a technician can sever the wiring harness 84 after the electronic components that are contained within cavity 81 have been lifted upwardly to the position of Figure 16, enabling those components to be serviced, replaced, etc. If the components below openings 95, 96 need to be serviced, those can be removed by either cutting the soft polymeric body 94 or by carefully removing them through expansion of the cavity in which they are contained.
- FIGs 31 -36 a fourth embodiment of the apparatus of the present invention is shown, designated generally by the numeral 132 in Figures 33, 34 and 35.
- Hearing aid 132 is constructed using the method shown in Figures 31-36.
- vent tube 133 is shown prior to attachment to mounting member (e.g. acrylic) 134.
- the mounting member 134 has an opening 135. It should be understood that the mounting member 134 can receive any of the molds 36, 71 shown in the embodiments of Figures 1-30.
- An insert 136 includes several sections designed to simulate portions of a hearing aid component assembly 152.
- the insert 136 can include a section 137 designed to simulate an electronic hearing aid component, namely a receiver.
- the insert section 138 is designed to simulate a wiring harness.
- the insert section 139 is designed to simulate a battery compartment or battery receptacle.
- vent tube 133 is first coated with a bonding agent 149 such as
- the vent tube 133 is then placed inside the mold cavity 39.
- the mold 36 is then attached (bonded) to mounting member 134 as shown and described with respect to the embodiments of Figures 1-30 (see Figure 7).
- the mold 36 can be removed as indicated schematically by arrow 151.
- a technician then removes insert 136 as indicated schematically by the arrow 140 in Figure 32.
- the insert 136 includes an insert section 137 that simulates a receiver, an insert section 138 that simulates a wiring harness and an insert section 139 that simulates a battery compartment or battery receptacle.
- other shapes can be used for insert 136 so that a cavity 141 of desired shape is achieved.
- a cavity 141 is left behind, the cavity being positioned next to vent tube 133 as shown in Figure 32.
- the cavity 141 simulates the sections of the provided insert 136, including a cavity section 142 that simulates a receiver, a cavity section 143 that simulates a wiring harness and a cavity section 144 that simulates a battery case or receptacle.
- the bonding enhancer 149 can be applied to vent tube 133 using a spray or brush 145 as shown in Figure 31 as indicated schematically by the arrow 146.
- Vent tube 133 thus has an outer surface 147 that becomes coated with the bonding enhancer or bonding agent 148.
- Vent tube 133 provides a bore 148 which is not coated with the bonding enhancer, as it remains open to vent air flow in between the patient's ear canal and the exterior of the ear canal and hearing aid 132.
- the polymeric filler material 150 that is added to mold 36 cavity 39 forms a soft and solid body having the provided cavity 141 into which a hearing aid component assembly 152 can be inserted, as indicated schematically by arrows 157 in Figure 33.
- This hearing aid component assembly can include both electronic hearing aid components and other components.
- the hearing aid component assembly 152 includes a receiver 153, wiring harness 155, and battery compartment 156 that includes other hearing aid components such as battery 159, a microphone, an amplifier, or other hearing aid components.
- Figure 34 illustrates the completion of and insertion of hearing aid component assembly 152 into the cavity 141 that was formed after the polymeric material 150 had cured and set, and after which the shaped insert 136 had been removed.
- arrows 158 schematically indicate a severing of excess vent tube 133 material and the severance of excess material from receiver tube 163.
- the receiver tube 163 and vent tube 133 thus communicate with the patient's inner ear generally opposite mounting member 134 as shown in Figures 33-35.
- the vent tube 133 also communicates with the exterior of the patient's ear via an opening 162 in mounting member 134 (see Figure 36).
- a connection 161 can be formed between vent tube 133 and mounting member 134 using a needle 160 to apply an adhesive (such as a glue commercially available under the trademark SUPERGLUE) or other connection material or structure, for example.
- an adhesive such as a glue commercially available under the trademark SUPERGLUE
- vent tube e.g., polycarbonate plastic or resin, preferably vent tube material from Oticon in Denmark, with characteristics of about lmm-2mm internal diameter and wall thickness of about 2mm and a rigidity which will reduce torsional load on hearing aid 132)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU51339/00A AU774838B2 (en) | 1999-05-13 | 2000-05-15 | Method of manufacturing a soft hearing aid |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/311,156 US6354990B1 (en) | 1997-12-18 | 1999-05-13 | Soft hearing aid |
US09/311,156 | 1999-05-13 | ||
US20398300P | 2000-05-12 | 2000-05-12 | |
US60/203,983 | 2000-05-12 |
Publications (1)
Publication Number | Publication Date |
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WO2000070911A1 true WO2000070911A1 (en) | 2000-11-23 |
Family
ID=26899080
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2000/013276 WO2000070911A1 (en) | 1999-05-13 | 2000-05-15 | Method of manufacturing a soft hearing aid |
Country Status (2)
Country | Link |
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AU (1) | AU774838B2 (en) |
WO (1) | WO2000070911A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1246505A1 (en) * | 2001-03-26 | 2002-10-02 | Widex A/S | A hearing aid with a face plate that is automatically manufactured to fit the hearing aid shell |
US7050876B1 (en) | 2000-10-06 | 2006-05-23 | Phonak Ltd. | Manufacturing methods and systems for rapid production of hearing-aid shells |
US7130437B2 (en) | 2000-06-29 | 2006-10-31 | Beltone Electronics Corporation | Compressible hearing aid |
WO2016138946A1 (en) * | 2015-03-03 | 2016-09-09 | Sonova Ag | Method of mounting at least one hearing device component inside a hearing device shell and hearing device |
US20170305040A1 (en) * | 2016-04-26 | 2017-10-26 | Gn Hearing A/S | Custom elastomeric earmold with secondary material infusion |
WO2018153458A1 (en) * | 2017-02-23 | 2018-08-30 | Sonova Ag | A method of sealing a module and a hearing device |
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US4375016A (en) * | 1980-04-28 | 1983-02-22 | Qualitone Hearing Aids Inc. | Vented ear tip for hearing aid and adapter coupler therefore |
US6022311A (en) * | 1997-12-18 | 2000-02-08 | General Hearing Instrument, Inc. | Apparatus and method for a custom soft-solid hearing aid |
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2000
- 2000-05-15 AU AU51339/00A patent/AU774838B2/en not_active Ceased
- 2000-05-15 WO PCT/US2000/013276 patent/WO2000070911A1/en active IP Right Grant
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US4375016A (en) * | 1980-04-28 | 1983-02-22 | Qualitone Hearing Aids Inc. | Vented ear tip for hearing aid and adapter coupler therefore |
US6022311A (en) * | 1997-12-18 | 2000-02-08 | General Hearing Instrument, Inc. | Apparatus and method for a custom soft-solid hearing aid |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7130437B2 (en) | 2000-06-29 | 2006-10-31 | Beltone Electronics Corporation | Compressible hearing aid |
US7050876B1 (en) | 2000-10-06 | 2006-05-23 | Phonak Ltd. | Manufacturing methods and systems for rapid production of hearing-aid shells |
US7328080B2 (en) | 2000-10-06 | 2008-02-05 | Phonak Ltd. | Manufacturing methods and systems for rapid production of hearing-aid shells |
EP1246505A1 (en) * | 2001-03-26 | 2002-10-02 | Widex A/S | A hearing aid with a face plate that is automatically manufactured to fit the hearing aid shell |
WO2002078233A2 (en) * | 2001-03-26 | 2002-10-03 | Widex A/S | Method for the production of a hearing aid housing and a hearing aid |
WO2002078233A3 (en) * | 2001-03-26 | 2003-03-20 | Widex As | Method for the production of a hearing aid housing and a hearing aid |
US6879697B2 (en) | 2001-03-26 | 2005-04-12 | Widex A/S | Hearing aid with a face plate that is automatically manufactured to fit the hearing aid shell |
US7694418B2 (en) | 2001-03-26 | 2010-04-13 | Widex A/S | Hearing aid with a face plate that is automatically manufactured to fit the hearing aid shell |
WO2016138946A1 (en) * | 2015-03-03 | 2016-09-09 | Sonova Ag | Method of mounting at least one hearing device component inside a hearing device shell and hearing device |
US10291992B2 (en) | 2015-03-03 | 2019-05-14 | Sonova Ag | Method of mounting a hearing device component inside a hearing device |
WO2017186773A1 (en) * | 2016-04-26 | 2017-11-02 | Gn Hearing A/S | Custom elastomeric earmold with secondary material infusion |
US20170305040A1 (en) * | 2016-04-26 | 2017-10-26 | Gn Hearing A/S | Custom elastomeric earmold with secondary material infusion |
JP2019515550A (en) * | 2016-04-26 | 2019-06-06 | ジーエヌ ヒアリング エー/エスGN Hearing A/S | Customized elastomeric earmold with secondary material injection |
JP7053490B2 (en) | 2016-04-26 | 2022-04-12 | ジーエヌ ヒアリング エー/エス | Customized elastomer earmolds with secondary material injection |
JP2022091934A (en) * | 2016-04-26 | 2022-06-21 | ジーエヌ ヒアリング エー/エス | Customized elastomeric earmold with secondary material infusion |
US11457323B2 (en) | 2016-04-26 | 2022-09-27 | Gn Hearing A/S | Custom elastomeric earmold with secondary material infusion |
US11477588B2 (en) | 2016-04-26 | 2022-10-18 | Gn Hearing A/S | Custom elastomeric earmold with secondary material infusion |
JP7362823B2 (en) | 2016-04-26 | 2023-10-17 | ファルコム エー/エス | Customized elastomeric earmolds with secondary material injection |
WO2018153458A1 (en) * | 2017-02-23 | 2018-08-30 | Sonova Ag | A method of sealing a module and a hearing device |
US11240614B2 (en) | 2017-02-23 | 2022-02-01 | Sonova Ag | Method of sealing a module and a hearing device |
Also Published As
Publication number | Publication date |
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AU774838B2 (en) | 2004-07-08 |
AU5133900A (en) | 2000-12-05 |
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