04771788 is referenced by 112 patents and cites 15 patents.

An invasive, fluid velocity measuring wire guide particularly adapted and of a size (less than 0.030 inch) for subselective placement in the coronary arterial tree, which includes a Doppler mechanism for determining the blood flow velocity in the region of the distal end of the wire guide. Although the wire guide is particularly adapted for diagnosing coronary arterial disease subselectively; it is of such a size and manipulability to be useful in other blood flow and biological fluid flow analyses. Preferably, the wire guide if flexible and steerable for precise placement. The wire guide includes an elongated wire member having a Doppler crystal attached in longitudinal alignment at its distal end. Electrical leads extend from the Doppler crystal along the wire member to the appropriate test equipment for measuring the fluid flow velocity in the region of the Doppler crystal.

Title
Doppler tip wire guide
Application Number
888060
Publication Number
4771788
Application Date
August 3, 1987
Publication Date
September 20, 1988
Inventor
Huntly D Millar
Houston
TX, US
Agent
Arnold White & Durkee
Assignee
Pfizer Hospital Products Group
NY, US
IPC
A61B 10/00
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