APPARATUS FOR INCREASED DYE FLOW

摘要

Elongate tubular medical devices having increased fluid flow are disclosed. The elongate devices may have a parking space within a lumen for withdrawing a treatment device from the body while retaining the treatment device within the elongate device. The parking space may provide for a fluid flow through the elongate device that approximates a fluid flow through the elongate device in the absence of the treatment device.

主权项

1. A catheter having increased fluid flow around a treatment device within the catheter, comprising:
an elongate member having a distal region configured to be disposed within a patient's body and a proximal region configured to be disposed outside a patient's body, the elongate member having a lumen extending therethrough, wherein fluid injected through the lumen in the distal region has a first flow rate in the absence of a treatment device that is insertable through the elongate member during a treatment procedure, wherein the lumen in the proximal region defines a parking space configured to contain the treatment device within the lumen but external to the patient's body, the parking space having a diameter and a length such that when the treatment device is in the parking space, fluid injected through the lumen proximal of the parking space flows around the treatment device and achieves a second flow rate in the distal region that is substantially the same as the first flow rate; and a port in fluid communication with the lumen.