Increased axial load carrying sheathed irrigating balloon catheter

摘要

A sheathed tubular semi-rigid balloon catheter for performing probing, irrigation, dilation, suction and potential intubation of the nasolacrimal system or paranasal sinus system to treat for stenosis or obstruction. The catheter includes a sheathed tubular probe portion through which a tracer fluid can be injected and through which suctioning of blood or other material can be conducted. The sheath portion of the device can have a distal segment that is inflated in order to dilate parts the nasolacrimal or paranasal sinus system. The high axial load accommodating catheter tool includes a more secure and inexpensively manufactured bond between the metallic semi-rigid tube of the probe portion and the plastic hand-manipulable, multi-connector hub using an enlarged bonding collar.

主权项

1. A device for the treatment of an obstruction in a patient's lacrimal drainage system which comprises:
an oblong probe portion shaped and dimensioned to axially penetrate the lacrimal system of a patient; wherein said probe portion further comprises:
an elongated substantially cylindrical body having a first outer diameter and terminating at a distal extremity and an opposite proximal extremity;said body being made from a hard, semirigid first material;a collar bonded to a portion of said body near said proximal extremity;said collar being made from a hard, semirigid second material;said collar having an outer peripheral surface having a second diameter greater than said first outer diameter; and, a hand graspable hub comprising a second rigid material different from said first material, said hub being secured to said outer peripheral surface along a hub/collar interfacing bond.