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US3817089A Expired / Lapsed US ⏱️ 0.0 years remaining

Rotating probe high data acquistion rate apparatus

Assignee: Interscience Research Institute
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Filing: 1972-10-19
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Granted: 1974-06-18
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Expires: 1992-10-19
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Abstract

Abstract An instrument and method which allows real time examination of internal organs of the body such as the heart comprising a catheter which has a rotating tip in which a number of ultrasonic transducers are mounted and which can be selectively connected to a pulser to transmit a ultrasonic pulse into the body and receive an echo from such pulse and including commutating, indexing and presentation means such that display of the conditions within the body may be obtained.

Inventors

  • 👤 R Eggleton
  • 👤 A Weidner

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-22 20:18
CPC Classifications
A; A61; A61B; A61B8/00; A61B8/42; A61B8/4272; A61B8/4281; A61B8/12; A61B8/44; A61B8/4444; A61B8/445; A61B8/4461; G; G01; G01S; G01S15/00; G01S15/88; G01S15/89; G01S15/8906; G01S15/8934; G01S15/8938; G01S15/894; G10; G10K; G10K11/00; G10K11/18; G10K11/26; G10K11/35; G10K11/352; A61M; A61M25/00; A61M25/0043; A61M25/005

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 241 words
A machine for obtaining information at a high data acquisition rate comprising: a housing, a driving motor mounted on said housing, a probe cylinder rotatably driven by said motor, a plurality of ultrasonic transducers symmetrically mounted on said probe cylinder and rotating therewith, and mounted to transmit and receive energy in a plane normal to the axis of rotation of said probe cylinder, a plurality of electrical leads respectively connected to said ultrasonic transducers, a first disc mounted on said probe cylinder, a plurality of reed switches symmetrically mounted on said first disc and each switch having first sides connected to one of said plurality of electrical leads, a second magnetic disc mounted on said probe cylinder adjacent said first disc, magnetic shielding means mounted on said housing between said first and second discs for sequentially closing said reed switches as said probe cylinder rotates, a common lead connecting the second sides of said switches connected together, an input-output lead electrically connected to said common lead, a pulser connected to said input-output lead, a receiver connected to said input-output lead, a presentation means connected to said receiver, a radial sweep timing generator connected to said pulser and said presentation means for displaying a visualization taken in said plane normal to the axis of rotation of said probe cylinder and means responsive to probe rotation for modifying the output of said timing generator to provide X and Y information in said visualization.
Claim 2
Dependent Claim 241 words
A machine for obtaining information at a high data acquisition rate comprising: a housing, a driving motor mounted on said housing, a probe cylinder rotatably driven by said motor, a plurality of ultrasonic transducers symmetrically mounted on said probe cylinder and rotating therewith, and mounted to transmit and receive energy in a plane normal to the axis of rotation of said probe cylinder, a plurality of electrical leads respectively connected to said ultrasonic transducers, a first disc mounted on said probe cylinder, a plurality of reed switches symmetrically mounted on said first disc and each switch having first sides connected to one of said plurality of electrical leads, a second magnetic disc mounted on said probe cylinder adjacent said first disc, magnetic shielding means mounted on said housing between said first and second discs for sequentially closing said reed switches as said probe cylinder rotates, a common lead connecting the second sides of said switches connected together, an input-output lead electrically connected to said common lead, a pulser connected to said input-output lead, a receiver connected to said input-output lead, a presentation means connected to said receiver, a radial sweep timing generator connected to said pulser and said presentation means for displaying a visualization taken in said plane normal to the axis of rotation of said probe cylinder and means responsive to probe rotation for modifying the output of said timing generator to provide X and Y information in said visualization.
Claim 3
Dependent Claim 21 words
A machine according to claim 1 wherein there are four equally spaced ultrasonic transducers, four electrical leads, and four reed switches.

References Cited (Backward Citations)

US3159023A Cited
US3250866A Cited
US3308652A Cited
US3431774A Cited
US3382707A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-06-17 1977-12-17 1978-06-18 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-06-17 1981-12-17 1982-06-18 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-06-17 1985-12-17 1986-06-18 $7700.00 Window Closed / Lapsed

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