Record Details

Apparatus for disintegrating kidney stones
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Author and Affiliation:
Angulo, E. D. [Inventor](NASA Goddard Space Flight Center, Greenbelt, MD, United States)
Abstract: The useful life of the wire probe in an ultrasonic kidney stone disintegration instrument is enhanced and prolonged by attaching the wire of the wire probe to the tip of an ultrasonic transducer by means of a clamping arrangement. Additionally, damping material is applied to the wire probe in the form of a damper tube through which the wire probe passes in the region adjacent the transducer tip. The damper tube extends outwardly from the transducer tip a predetermined distance, terminating in a resilient soft rubber joint. Also, the damper tube is supported intermediate its length by a support member. The damper system thus acts to inhibit lateral vibrations of the wire in the region of the transducer tip while providing little or no damping to the linear vibrations imparted to the wire by the transducer.
Publication Date: Oct 02, 1984
Document ID:
19840026842
(Acquired Nov 13, 1995)
Accession Number: 84N34913
Subject Category: AEROSPACE MEDICINE
Report/Patent Number: US-PATENT-4,474,180, US-PATENT-APPL-SN-377891, NASA-CASE-GSC-12652-1
Document Type: Patent
Publication Information: (SEE N82-26961)
Publisher Information: United States
Financial Sponsor: NASA; United States
Organization Source: NASA Goddard Space Flight Center; Greenbelt, MD, United States
Description: 6p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: No Copyright
NASA Terms: CALCULI; DAMPING; KIDNEYS; LIFE (DURABILITY); ULTRASONIC WAVE TRANSDUCERS; VIBRATION; WIRE; CATHETERIZATION; CLINICAL MEDICINE; METAL FATIGUE; SURGERY
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