Systems and methods for shunting fluid
First Claim
1. A method of flushing a shunt system, comprising:
- in a single motion, applying a force to a flusher at a single contiguous contact area, the flusher including a flow path that extends between an upstream port and a downstream port, at least a portion of the flow path being defined by a pinch tube that extends across an exterior surface of a flush dome, the force being effective to collapse the pinch tube, thereby closing off a connection to the downstream port, and to collapse the flush dome;
wherein collapsing the flush dome is effective to release a cough of pressurized fluid through an upstream portion of the shunt system.
3 Assignments
0 Petitions
Accused Products
Abstract
Systems and methods are provided herein that generally involve shunting fluid, e.g., shunting cerebrospinal fluid in the treatment of hydrocephalus. Self-cleaning catheters are provided which include split tips configured such that pulsatile flow of fluid in a cavity in which the catheter is inserted can cause the tips to strike one another and thereby clear obstructions. Catheters with built-in flow indicators are also provided. Exemplary flow indicators include projections that extend radially inward from the interior surface of the catheter and which include imageable portions (e.g., portions which are visible under magnetic resonance imaging (MRI)). Movement of the flow indicators caused by fluid flowing through the catheter can be detected using MRI, thereby providing a reliable indication as to whether the catheter is partially or completely blocked. Systems and methods for flushing a shunt system are also disclosed herein, as are various systems and methods for opening auxiliary fluid pathways through a shunt system.
53 Citations
12 Claims
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1. A method of flushing a shunt system, comprising:
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in a single motion, applying a force to a flusher at a single contiguous contact area, the flusher including a flow path that extends between an upstream port and a downstream port, at least a portion of the flow path being defined by a pinch tube that extends across an exterior surface of a flush dome, the force being effective to collapse the pinch tube, thereby closing off a connection to the downstream port, and to collapse the flush dome; wherein collapsing the flush dome is effective to release a cough of pressurized fluid through an upstream portion of the shunt system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification