Please click here to obtain permission to reproduce this image.
Click on image to view larger version.
Figure 1 Original Transseptal Equipment for Human Use
(A) Cournand catheter (with removeable hub) through which the needle is inserted. The transseptal needle has a specified curve and bevel, with an attached arrow-handle for controlled rotation (B and D). The 17-gauge needle allows passage of a small catheter (C) for pressure measurements in the left atrium and left ventricle, and injection of indicator dye into the left ventricle with brachial arterial sampling, for calculation of the cardiac output. Reprinted with permission from Ross et al. (5).
|
