Interventional catheter housing assemblies incorporating guide wire brakes and management systems

摘要

Interventional catheter assemblies that operate over a guide wire are disclosed. Specifically, an elongated flexible catheter is associated at its proximal end with a housing having a guide wire port where the guide wire exits the housing. The housing additionally incorporates a guide wire brake mounted within a slot positioned a distance from the guide wire port for engaging and releasing a guide wire. The slot is generally arranged at an angle to the path of the guide wire as it exits the guide wire port. When the guide wire is clamped in the angled slot, variable lengths of exposed guide wire accumulate in a substantially unrestrained condition when the flexible catheter is advanced and retracted relative to the guide wire, allowing movement of the distal end of the catheter over considerable distances without repositioning and re-clamping the proximal end of the guide wire.

主权项

1. An interventional catheter housing assembly comprising: a housing having a top wall, a bottom wall, and a plurality of side walls enclosing at least one interventional catheter operating component; a catheter feedthrough penetrating the housing; a guide wire exit port for slidably receiving a guide wire; an angled slot provided in the top wall, the bottom wall, or a side wall of the housing and positioned a distance from the guide wire exit port; wherein the guide wire exit port and the angled slot penetrate a common side wall of the housing, and a guide wire clamp provided within the housing and positioned for operating within the angled slot that, in a closed, actuated condition prevents both rotation and axial translation of the guide wire positioned in the angled slot.