Stethoscope
First Claim
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1. A stethoscope head comprising:
- a bell housing having a mouth end;
a first diaphragm, having a respective opening therein, and being coupled to said bell housing at said mouth end; and
a second diaphragm, having a respective opening therein, and being rotatably coupled to said bell housing in juxtaposition to said first diaphragm, said first and second diaphragms forming a composite diaphragm adapted for placement against a patient'"'"'s body for auscultation.
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Abstract
A stethoscope head comprises a bell housing,for resonating, a diaphragm arrangement for sound communication, and a user operable selector control for selectively providing an opening in the diaphragm.
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Citations
22 Claims
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1. A stethoscope head comprising:
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a bell housing having a mouth end; a first diaphragm, having a respective opening therein, and being coupled to said bell housing at said mouth end; and a second diaphragm, having a respective opening therein, and being rotatably coupled to said bell housing in juxtaposition to said first diaphragm, said first and second diaphragms forming a composite diaphragm adapted for placement against a patient'"'"'s body for auscultation. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A stethoscope head, comprising:
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bell housing means for resonating; composite diaphragm means, comprising first and second juxtaposed diaphragms, said composite diaphragm being coupled to said bell housing means for sound communication; and user operable selection means, coupled to said diaphragm means for selectively providing an opening in said composite diaphragm means. - View Dependent Claims (8)
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9. A stethoscope head comprising:
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a bell housing having a mouth end; a composite diaphragm attached across said mouth end; and said composite diaphragm comprising a first acoustically responsive diaphragm and a further acoustically responsive diaphragm for forming in combination with said first acoustically responsive diaphragm a disk valve. - View Dependent Claims (10, 11, 12, 13)
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14. A stethoscope head comprising:
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a bell housing; a first bearing ring coupled to said bell housing; a first diaphragm attached to said first bearing ring; a second bearing ring rotatably coupled to said first bearing ring; a second diaphragm attached to said second bearing ring; and said first and second diaphragms having therein respective openings such that when said first and second diaphragms are in a first angular relationship said respective openings are in alignment and when said first and second diaphragms are in a second angular relationship said respective openings are out of alignment such that said first and second diaphragms function cooperatively as one composite acoustical diaphragm. - View Dependent Claims (15, 16)
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17. A stethoscope head comprising:
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a bell housing having a mouth; a composite diaphragm attached across said mouth, wherein said diaphragm comprises first and second diaphragms being in juxtaposition and adapted for relative rotation for selectively bringing into and out of alignment respective openings or holes in said first and second diaphragm such that when said holes are out of alignment, said composite diaphragm causes said stethoscope head to function as a diaphragm head with said composite diaphragm forming the effective diaphragm thereof and when said openings or holes are in alignment, said composite diaphragm causes said stethoscope head to function as a bell head.
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18. A stethoscope head comprising:
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a bell housing; and a disk valve having user selectable opening size and being coupled to said bell housing for providing continuous variation of acoustic response between a bell type of response characteristic and a diaphragm type of response characteristic, said disk valve being adapted for operation as a composite acoustic diaphragm. - View Dependent Claims (19, 20)
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21. A method of in situ bell and diaphragm response auscultation with a stethoscope head having a composite diaphragm comprising a fixed diaphragm with perforations and a rotatable diaphragm with perforations, said fixed and rotatable diaphragms being in close juxtaposition so as to be capable of operating acoustically substantially as a single composite diaphragm, comprising the steps of:
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(a) selecting a position of said rotatable diaphragm so as to bring into alignment said perforations in said fixed and rotatable diaphragms; (b) applying said composite diaphragm of said stethoscope head to a patient for auscultation; (c) with said stethoscope head still applied to said patient, selecting a position of said rotatable diaphragm so as to bring out of alignment said perforations in said fixed and rotatable diaphragms; and (d) continuing auscultation of said patient. - View Dependent Claims (22)
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Specification