Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...
Patent
1993-08-05
1996-01-16
Rosenbaum, C. Fred
Surgery
Means for introducing or removing material from body for...
Treating material introduced into or removed from body...
A61M 500
Patent
active
054844169
ABSTRACT:
A vascular access system for accurately locating body structures, such as blood vessels within a patient includes a flexible probe for applying Doppler ultrasonic techniques that has a relatively adjustable length relative to a needle assembly. The flexible probe has a coaxial cable design that includes a piezoelectric element at a proximal end of the probe. The piezoelectric element is used for emitting ultrasonic signals and for receiving ultrasonic signals that are reflected off of various body structures within a patient. The intensity of the reflective ultrasonic signals is used to determine the location of a preselected body structure. The flexible probe is adaptable for use within a variety of needles for a variety of applications.
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patent: 5156596 (1992-10-01), Balbierz et al.
patent: 5259385 (1993-11-01), Miller et al.
patent: 5290244 (1994-03-01), Moonka
Advanced Cardiovascular Systems Inc.
Mendez Manuel
Rosenbaum C. Fred
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