Occlusion Systems

An occlusion system for occluding a treatment site in a heart, comprising:

• an outer catheter having an elongated body and an inflation lumen extending therethrough;
• and,
• a balloon assembly releasably connected to a distal end of the outer catheter via a detachment mechanism;
• the balloon assembly comprising an inflatable proximal portion configured to receive inflation fluid and a distal portion configured to accept adhesive;
• the balloon assembly further comprising a first valve preventing release of the inflation fluid outside of the balloon assembly, and a second valve preventing release of the inflation fluid into the distal portion.

A method for occluding blood flow in a left atrial appendage in a heart of a patient, comprising:

• advancing a balloon assembly into a left atrial appendage;
• inflating a first portion of the balloon assembly via an inflation lumen from an outer catheter;
• delivering adhesive to a second portion of the balloon assembly;
• absorbing the adhesive with an adhesive-absorbing membrane connected to the second portion of the balloon assembly so that the adhesive is exposed on an outer surface of the adhesive-absorbing membrane;
• and,
• detaching the outer catheter from the balloon assembly.