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Catheters, Vascular, Ultrasound, Doppler

Definition : Ultrasound vascular catheters designed to determine blood-flow velocity by measuring the ultrasound frequency shift between the transmitted and reflected signals (i.e., Doppler principle). These catheters typically consist of a 3 to 8 Fr tube with a ceramic crystal that is capable of transmitting and receiving ultrasound signals (20 MHz frequency is typical) and is attached at or near the distal tip. Two wires attached to the crystal are connected at the proximal end to a Doppler blood flowmeter. These catheters usually include an infusion lumen and/or an additional lumen for a guide wire. Doppler ultrasound catheters are used mainly to measure coronary hemodynamics (e.g., blood mean and peak velocity) during coronary catheterization.

Entry Terms : "Pulsed Doppler Coronary Artery Catheters" , "Judkins Doppler-Tipped Catheters" , "Doppler Ultrasound Catheters" , "Blood Flow Velocity Catheters" , "Coronary Blood Flow Velocity Catheters"

UMDC code : 18673

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1-4 of 4 Match(es).

AOSS Medical Supply

Company Type: Parent

D E Hokanson Inc

Company Type: Parent

D.E. Hokanson, Inc. (Hokanson) provides noninvasive diagnostic instruments of the highest quality to the medical community - manufacturing instruments with a commitment to excellence in research, materials and workmanship.

Keitzer Mfg USA

Company Type: Parent

Keitzer Manufacturing USA has been serving the healthcare industry for over 29 years. We pride ourselves on the quality of our products and the care we take with each and every order we receive.

Natus Medical Inc

Company Type: Parent

Natus is a leading provider of healthcare products used for the screening, detection, treatment, monitoring and tracking of common medical ailments in newborn care, hearing impairment, neurological dysfunction, epilepsy, sleep disorders, and balance and mobility disorders.

1-4 of 4 Match(es).

 

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