Patent ID: 7242977

Claim:
A catheter system, comprising: an outer catheter comprising an open lumen and a sensing arrangement provided at a distal end of the outer catheter; and a balloon catheter movably disposed within the open lumen of the outer catheter, the balloon catheter comprising: an open lumen dimensioned to receive a medical electrical lead; a balloon arrangement provided at a distal end of the balloon catheter and inflatable within the open lumen of the balloon catheter; and an inflation mechanism provided at a proximal end of the balloon catheter and fluidly coupled to the balloon arrangement and configured to facilitate inflation and deflation of the balloon arrangement, the balloon arrangement dimensioned to prevent movement of the lead within the open lumen of the balloon catheter upon inflation of the balloon arrangement, and to permit movement of the lead within the open lumen of the balloon catheter upon deflation of the balloon arrangement.