In-ear-canal audio receiver and stethoscope having the same

• US 5,917,918 A
• Filed: 02/21/1997
• Issued: 06/29/1999
• Est. Priority Date: 02/23/1996
• Status: Expired due to Fees

• Current Assignee: Matthew G. Callahan
• Original Assignee: University Research Engineers & Associates Incorporated
• Inventors: Callahan, Thomas F.
• Primary Examiner(s): Lee, Ping
• Application Number:
  US08/803,674
• Time in Patent Office: 858 Days
• Field of Search: 381/67, 381/68, 381/68.6, 381/68.5, 381/187, 381/183, 381/322, 381/324, 381/328, 381/374, 381/380, 381/386, 381/395, 181/135, 181/129
• US Class Current: 381/67
• CPC Class Codes: A61B 7/02 Stethoscopes acoustic details thereof G10K11/00
• CPC Class Codes: H04R 1/1016 Earpieces of the intra-aural type
• CPC Class Codes: H04R 1/1083 Reduction of ambient noise active noise reduction per se G10K11/175; protective devices for the ear, e.g. providing acoustic protection A61F11/06

Abstract

The present invention provides an in-ear-canal audio receiver (42) comprising an in-ear-canal adapter body (96) having a tapered ear plug portion (98) that is inserted into the user'"'"'s ear canal. The adapter body (96) further has an opening (104) in the plug portion, an exterior annular indent (128), and an inner chamber (92) coupled to the opening of the plug portion. The inner chamber of the in-ear-canal adapter body holds a transducer assembly (92) comprising a transducer housing (54) and a transducer or speaker (56). The transducer (56) is positioned in a passage extending through the transducer housing. A torus-shaped cushion (106) is positioned in the annular indent of the in-ear-canal adapter body (96). The cushion provides comfort and establishes a good seal with the user'"'"'s ear.

Claims

1. An earpiece for insertion into a user'"'"'s ear comprising:

an ear adapter body having a first end and a second end forward of said first end and insertable into the ear canal of a user'"'"'s ear, said ear adapter body after having;

an ear canal section adjacent said second end,

an outer ear section adjacent said first end, and

a concha section disposed between said ear canal and outer ear sections, whereby said ear canal section is disposed in the ear canal of a user'"'"'s ear, the concha section is disposed adjacent the concha region of the user'"'"'s ear, and the outer ear section is disposed outside the user'"'"'s ear when said second end of said ear adapter body is inserted into the user'"'"'s ear canal; and

separate concha cushion means mounted to said concha section of said ear adapter body for contacting the concha region of a user'"'"'s ear and substantially preventing contact between said ear adapter body and the ear canal of the user'"'"'s ear when said ear adapter body is inserted into the user'"'"'s ear, whereby said concha cushion means is substantially the only portion of the earpiece that contacts the user'"'"'s ear when said ear adapter body is inserted into the user'"'"'s ear;

wherein said ear canal section of said ear adapter body protrudes forwardly beyond said concha cushion means such that said ear canal section is exposed; and

wherein said concha cushion means comprises a soft compressible pad that is easily compressed to conform to the shape of the concha region of the user'"'"'s ear when said second end of said ear adapter body is inserted into the user'"'"'s ear canal.

2. The earpiece of claim 1, wherein said soft compressible pad has a generally fan-like configuration with a protruding notch on one side and an enlarged, generally, semi-circular portion on an opposing side, wherein said protruding notch is disposed between the user'"'"'s tragus and antitragus and the generally semi-circular portion is disposed in the user'"'"'s concha when said earplug is inserted in the user'"'"'s ear.

3. The earpiece of claim 1, wherein said soft compressible pad comprises a gelatinous material.

4. The earpiece of claim 1, wherein said soft compressible pad comprises a putty material.

5. The earpiece of claim 1, wherein said soft compressible pad comprises a viscous material with noise-damping qualities.

6. The earpiece of claim 1, further comprising a transducer disposed in said ear adapter body.

7. The earpiece of claim 1, wherein said first end of said ear adapter body is provided with mounting means for coupling said ear adapter body to an audio device.

8. The earpiece of claim 1, further comprising:

a transducer housing disposed in said ear adapter body, said transducer housing having a chamber; and

a transducer disposed in said transducer housing.

9. The earpiece of claim 8, wherein said transducer housing is disposed in the outer ear section of said outer ear section of said ear adapter body.

10. The in-ear-canal audio receiver of claim 8, wherein said transducer housing comprises an epoxy material that surrounds said transducer.

11. The in-ear-canal audio receiver of claim 8, further comprising an encapsulating housing that surrounds said transducer, said encapsulating housing comprising an epoxy material and being received in said passage of said transducer housing.

12. A stethoscope comprising:

a stethoscope head;

at least one sound transmission tube coupled to said stethoscope head; and

at least one earpiece mounted to said at least one sound transmission tube, said earpiece comprising;

an ear adapter body having a first end and a second end forward of said first end and insertable into the ear canal of a user'"'"'s ear, said adapter body further having;

an ear canal section adjacent said second end,

an outer ear section adjacent said first end, and

a concha section disposed between said ear canal and outer ear sections, whereby said ear canal section is disposed in the ear canal of a user'"'"'s ear, the concha section is disposed adjacent the concha region of the user'"'"'s ear, and the outer ear section is disposed outside the user'"'"'s ear when said second end of said ear adapter body is inserted into the user'"'"'s ear canal; and

separate concha cushion means mounted to said concha section of said ear adapter body for contacting the concha region of a user'"'"'s ear and substantially preventing contact between said ear adapter body and the ear canal of the user'"'"'s ear when said ear adapter body is inserted into the user'"'"'s ear, whereby said concha cushion means is substantially the only portion of the earpiece that contacts the user'"'"'s ear when said ear adapter body is inserted into the user'"'"'s ear;

wherein said ear canal section of said ear adapter body protrudes forwardly beyond said concha cushion means such that said ear canal section is exposed; and

wherein said concha cushion means comprises a soft compressible pad that is easily compressed to conform to the shape of the concha region of the user'"'"'s ear when said second end of said ear adapter body is inserted into the user'"'"'s ear canal.

13. An in-ear-canal audio receiver comprising:

an in-ear-canal adapter body having a protruding, tapered, ear portion, an opening in the ear portion, an exterior annular indent, and inner chamber coupled to the opening of the ear portion;

a transducer assembly positioned in said inner chamber of said in-ear-canal adapter body, said transducer assembly comprising a transducer housing having a passage and a transducer positioned in said passage; and

a cushion positioned in the annular indent of the in-ear-canal adapter body;

wherein said transducer housing comprises a transducer adapter body having said passage and an end cap which covers an end of said passage of said transducer adapter body, wherein said transducer fits into the passage of the transducer adapter body.

14. An in-ear-canal audio receiver comprising:

an in-ear-canal adapter body having a protruding, tapered, ear portion, an opening in the ear portion, an exterior annular indent, and inner chamber coupled to the opening of the ear portion;

a transducer assembly positioned in said inner chamber of said in-ear-canal adapter body, said transducer assembly comprising a transducer housing having a passage and a transducer positioned in said passage; and

a cushion positioned in the annular indent of the in-ear-canal adapter body;

wherein said transducer assembly further comprises a transducer adapter body having a through hole and an end cap which covers an end of said through hole of said transducer adapter body, wherein said transducer fits into the through hole of the transducer adapter body, and said transducer adapter body together with said transducer are received in said passage of said transducer housing.