Surgery – Diagnostic testing – Detecting nuclear – electromagnetic – or ultrasonic radiation
Patent
1996-11-26
1998-07-14
Jaworski, Francis
Surgery
Diagnostic testing
Detecting nuclear, electromagnetic, or ultrasonic radiation
600585, 29 2535, A61B 812
Patent
active
057796432
ABSTRACT:
An imaging guidewire for imaging tissues from inside a patient's body cavity. The imaging guidewire includes an elongated main body portion and an end portion. The end portion has a housing near to the guidewire's distal end, an ultrasonic beam emitting assembly having a pivotable part, and a driver for producing a pivotal motion on the pivotable part. The housing has a portion that is acoustically transparent. The pivotable part is movable and is operatively connected to the housing. The pivotable part can either have on it a transducer for emitting ultrasound or a reflector for reflecting ultrasound. In either case, when the pivotable part pivots it sweeps ultrasonic energy over a selected angle. The driver is located near to the transducer such that all driving motions for driving the pivotal motion occur near the distal end of the imaging guidewire.
REFERENCES:
patent: 4794931 (1989-01-01), Yock
patent: 4899757 (1990-02-01), Pope, Jr. et al.
patent: 5000185 (1991-03-01), Yock
patent: 5176141 (1993-01-01), Bom et al.
patent: 5240003 (1993-08-01), Lancee et al.
patent: 5271402 (1993-12-01), Yeung et al.
patent: 5368035 (1994-11-01), Hamm et al.
patent: 5377685 (1995-01-01), Kazi et al.
patent: 5497782 (1996-03-01), Fugoso
patent: 5505088 (1996-04-01), Chandraratna et al.
patent: 5507294 (1996-04-01), Lum et al.
patent: 5509418 (1996-04-01), Lum et al.
patent: 5517989 (1996-05-01), Frisbie et al.
patent: 5520189 (1996-05-01), Malinowski et al.
patent: 5546984 (1996-08-01), Hamm et al.
Sopori, A New Defect Etch for Polycrystalline Silicon, J. Electrochem. Soc.: Solid-State Science and Technology, vol. 131, No. 3, Mar. 1984, pp. 667-672.
Bergeron, et al., Controlled Anisotropic Etching of Polysilicon, Solid State Technology, Aug. 1982, pp. 98-103.
Mandurah, et al., A Model for Conduction Inpolycrystalline Silicon--Part 1: Theory, IEEE Transactions on Electron Devices, vol. ED-28, No. 10, Oct. 1981, pp. 1163-1170.
Bean, Anisotropic Etching of Silicon, IEEE Transactions on Electron Devices, vol. ED-25, No. 10, Oct. 1978, pp. 1185-1193.
Robbins, et al., Chemical Etching of Silicon, Journal of the Electrochemical Society, vol. 107, No. 2, Feb. 1960, pp. 108-111.
Declercq, A New C-MOS Technology Using Anisotropic Etching of Silicon, IEEE Journal of Solid-State Circuits, vol. SC-10, No. 4, Aug. 1975, pp. 191-196.
Tenney, et al., Etch Rates of Doped Oxides in Solutions of Buffered HF, J. Electrochem. Soc.: Solid-State Science and Technology, vol. 120, No. 8, Aug. 1973, pp. 1091-1095.
Kamins, et al., Diffusion of Impurities in Polycrystalline Silicon, J. Appl. Phys., vol. 43, No. 1, Jan. 1972, pp. 83-91.
van Gelder, et al., The Etching of Silicon Nitride in Phosphoric Acid with Silicon Dioxide as a Mask, J. Electrochem. Soc.: Solid-State Science, vol. 114, No. 8, Aug. 1967, pp. 869-872.
Judy, et al., Batch-Fabricated, Addressable, Magnetically Actuated Microstructures, Solid-State Sensor and Actuator Workshop, Hilton Head, SC, Jun. 2-6, 1996, pp. 187-190.
Judy, et al., Magnetic Microactuation of Polysilicon Flexure Structures, Journal of Microelectromechanical Systems, vol. 4, No. 4, Dec. 1995, pp. 162-169.
Judy, et al., Fabrication Processes for Magnetic Microactuators with Polysilicon Flexures, The 4th International Symposium on Magnetic Materials, Processes, and Devices, Chicago, IL, Oct. 8-13, 1995, 2-page paper.
Judy, et al., Magnetic Microactuation of Torsional Polysilicon Structures, The 8th International Conference on Solid-State Sensors and Actuators, Stockholm, Sweden, Jun. 25-29, 1995, pp. 332-335.
Liu, et al., A Micromachined Permalloy Magnetic Actuator Array for Micro Robotics Assembly Systems, The 8th International Conference on Solid-State Sensors and Actuators, and Eurosensors IX, Stockholm, Sweden, Jun. 25-29, 1995, pp. 328-331.
Liu, et al., Out-of-Plane Permalloy Magnetic Actuators for Delta-Wing Control, Proc. IEEE Micro Electro Mechanical Systems, Amsterdam, The Netherlands, Jan. 29-Feb. 3, 1995, pp. 7-12.
Garabedian, et al., Microfabricated Surface Plasmon Sensing System, Sensors and Actuators A, 43 (1994), pp. 202-207.
Guckel, et al., A First Functional Current Excited Planar Rotational Magnetic Micromotor, Proc. IEEE Micro Electro Mechanical Systems, Fort Lauderdale, FL, Feb. 7-10, 1993, pp. 7-11.
Ahn, et al., A Planar Variable Reluctance Magnetic Micromotor with Fully Integrated Stator and Wrapped Coils, Proc. IEEE Micro Electro Mechanical Systems, For Lauderdale, FL, Feb. 7-10, 1993, pp. 1-16.
Richards, et al., Surface-Plasmon Excitation Using a Polarization-Preserving Optical Fiber and an Index-Matching Fluid Optical Cell, Applied Optics, vol. 32, No. 16, Jun. 1, 1993, pp. 2901-2906.
Wagner, et al., Microactuators with Moving Magnets for Linear, Torsional or Multiaxial Motion, Sensors and Actuators A, 32 (1992), pp. 598-603.
Pister, et al., Microfabricated Hinges, Sensors and Actuators A, 33 (1992), pp. 249-256.
Ahn, et al., A Fully Integrated Micromagnetic Actuator with a Multilevel Meander Magnetic Core, 1992 IEEE, 0-7803-0456-X/92, pp. 14-18.
Wagner, et al., Microfabricated Actuator with Moving Permanent Magnet, 1991 IEEE, CH2957-9/91/0000-0027, pp. 27-32.
Tang, et al., Electrostatic-Comb Drive of Lateral Polysilicon Resonators, Sensors and Actuators, A21-A23 (1990), pp. 328-331.
Steinbruchel, et al., Mechanism of Dry Etching of Silicon Dioxide, J. Electrochem. Soc.: Solid-State Science and Technology, vol. 132, No. 1, Jan. 1985, pp. 180-186.
Tabata, O., "PH-Controlled TMAH Etchants For Silicon Micromachining", 1996, Sensors and Actuators A, 53, pp. 335-339.
Wagner, et al., Microactuators with Moving Magnets for Linear, Torsional or Multiaxial Motion, Sensors and Actuators A, 32 (1992), pp. 598-603.
Lum Paul
Verdonk Edward
Hewlett--Packard Company
Jaworski Francis
Yip Philip S.
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