CENTRAL VENOUS OXYGEN SATURATION MEASUREMENT

摘要

An apparatus (10) and method for measurement ofoxygen saturation of venous blood for use with a centralvenous catheter (60) are described. The apparatus (10)includes a fiber optic bundle (12) having a distal end (14)and a proximal end (16). The fiber optic bundle (12)further includes afferent and efferent light-conductingfibers (18) for sending signals and receiving signals forgenerating oxygen saturation measurements. A sheath (28) isdisposed about the fiber optic bundle (12) for encapsulatingand protecting the fiber optic bundle (12) and exposing thedistal end (14) of the fiber optic bundle (12). Theapparatus (10) includes a locking device (30) for lockingthe fiber optic bundle (12) relative to a catheter (11) intowhich the fiber optic bundle (12) is inserted to fix therelative relationship between the fiber optic bundle (12)and the catheter (11) when disposed in situ during an oxygensaturation measurement procedure.