Interspinous process spacer diagnostic parallel balloon catheter and methods of use

摘要

An interspinous process spacer diagnostic parallel balloon catheter and method. The balloon catheter has a plurality of main expandable members disposed one inside another, a distal expandable member and a proximal expandable member that all can be expanded from a collapsed configuration to an expanded configuration and then collapsed again to a collapsed configuration. The device can be used to determine whether a particular patient is a candidate for implantation of an interspinous process spacer to treat the symptoms of lumbar spinal stenosis and the size of such a spacer if indicated.

主权项

1. An interspinous process spacer diagnostic parallel balloon catheter, comprising:
an elongate member; a first main expandable member affixed to a distal end of the elongate member; a second main expandable member disposed inside the first main expandable member and affixed to the distal end of the elongate member such that the first main expandable member encases the second main expandable member; a distal expandable member connected to the distal end of the elongate member adjacent to a distal end of the first main expandable member, wherein the distal expandable member is configured to engage the first main expandable member when the distal expandable member and the first main expandable member are in a collapsed configuration or an expanded configuration; a proximal expandable member connected to the distal end of the elongate member adjacent to a proximal end of the first main expandable member; and a plurality of lumens disposed in the elongate member in communication with one or more of the first main expandable member, the second main expandable member, the distal expandable member and the proximal expandable member.