INTRALUMINAL TREATMENT APPARATUS, WIRE GUIDE AND TREATMENT FLUID DELIVERY METHOD

摘要

An intraluminal treatment apparatus (10) includes a fluid supply mechanism (14) and a flow managing mechanism (40) for controlling a flow of fluid within a body lumen. The flow managing mechanism includes an elongate flow control component (42) having a subordinate shape memory property, and an elongate shape control component (50) positioned within the flow control component and having a dominant shape memory property. The flow control component includes a fixed primary shape, a fixed secondary shape, and a mutable tertiary shape. The shape control component is slidable relative to the flow control component between a first location at which the dominant shape memory property defines the tertiary shape, and a second location at which the subordinate shape memory property defines the tertiary shape. The flow managing mechanism may be adjusted between a lumen access configuration and a deployed configuration for temporary embolization of a vascular lumen such as an artery, to limit supplying a treatment fluid such as a chemotherapeutic agent to the vascular lumen while preferentially supplying the chemotherapeutic agent to another vascular lumen.