Surgery: kinesitherapy – Kinesitherapy – Ultrasonic
Patent
1996-02-28
1998-09-29
Jaworski, Francis J.
Surgery: kinesitherapy
Kinesitherapy
Ultrasonic
606159, A61B 1722
Patent
active
058139982
ABSTRACT:
A system and method for coupling acoustic energy within a waveguide provides highly efficient and sensitive acoustic energy generation and detection. In particular, an ultrasound angioplasty system is described which makes use of an end-fire array of ring transducers to produce highly directionalized sound within an acoustic waveguide. The transducers can be made circularly symmetric, and may be composed of multiple segments for generating sound waves in independent x and y spatial modes within the acoustic waveguide. Each ring transducer is optimally spaced 1/2.lambda..sub.L from its neighbor transducers, such that alternate transducers transduce 180-degrees out of phase, and may have their electrical end inverted for common drive, or for summing of transducer electrical outputs when the array is used as a detector. The phased array may also be used in a resonant acoustic energy system used to detect pressure variations or reflections from a substance, for example, for detecting the progress of chemical reactions, liquid level sensing, etc., imaging, or in various other ultrasound applications.
REFERENCES:
patent: 2549891 (1951-04-01), Carlin
patent: 2702472 (1955-02-01), Rabinow
patent: 4870953 (1989-10-01), DonMichael et al.
patent: 4887606 (1989-12-01), Yock et al.
patent: 4961424 (1990-10-01), Kubota et al.
patent: 4974581 (1990-12-01), Wiksell
patent: 5159226 (1992-10-01), Montgomery
patent: 5209719 (1993-05-01), Baruch et al.
patent: 5262696 (1993-11-01), Culp
patent: 5269297 (1993-12-01), Weng et al.
patent: 5304115 (1994-04-01), Pflueger et al.
patent: 5306980 (1994-04-01), Montgomery
patent: 5326342 (1994-07-01), Pflueger et al.
patent: 5342292 (1994-08-01), Nita et al.
patent: 5368557 (1994-11-01), Nita et al.
patent: 5368558 (1994-11-01), Nita
patent: 5376858 (1994-12-01), Imabayashi et al.
patent: 5380274 (1995-01-01), Nita
patent: 5390678 (1995-02-01), Gesswein et al.
patent: 5394874 (1995-03-01), Forestieri et al.
patent: 5397293 (1995-03-01), Alliger et al.
patent: 5397301 (1995-03-01), Pflueger et al.
patent: 5417672 (1995-05-01), Nita et al.
patent: 5427118 (1995-06-01), Nita et al.
patent: 5476011 (1995-12-01), Cornforth
patent: 5509417 (1996-04-01), Dias et al.
patent: 5515850 (1996-05-01), Dias
I. L. Gelles, (1966) "Optical-Fiber Ultrasonic Delay Lines", J. of the Acoustical Society of America, 39(6), pp. 1111-1119.
A. J. DeVries et al. (1971) "Characteristics of Surface-Wave Integratable Filters (SWIFS)", IEEE Transactions on Broadcast and Television Receivers BTR-17(1), pp. 16-23.
J. Fleming Dias, (1981) "Physical Sensors Using SAW Devices", Hewlett-Packard Journal, pp. 18-20.
W. W. Hansen et al. (1988) "A New Principle in Directional Antenna Design",Proceedings of the Inst. of Radio Engineers, 26(3), pp. 333-345.
J. D. Kraus (1988) Electromagnetics, 4th ed, "Antennas and Radiation", McGraw-Hill pp. 716-785.
J. Fleming Dias (1994) Electronic Instrument Handbook, 2nd ed., "Transducers", McGraw-Hill pp. 5.1-5.50.
Hewlett--Packard Company
Jaworski Francis J.
LandOfFree
Method and system for coupling acoustic energy using an end-fire does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and system for coupling acoustic energy using an end-fire, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and system for coupling acoustic energy using an end-fire will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-682052