Basket catheter distal end feature

An end effector of a medical probe, the end effector comprising:

• a plurality of spines extending along a longitudinal axis and configured to expand away from the longitudinal axis to form a basket shape;
• a first loop member comprising a first pair of spines of the plurality of spines and a first central region disposed approximate a distal end of the end effector;
• a second loop member comprising a second pair of spines of the plurality of spines and a second central region disposed approximate the distal end of the end effector, the second central region comprising a portion disposed over a distal surface of the first central region and at least one extension disposed under a proximal surface of the first central region;
• one or more electrodes coupled to each spine of the plurality of spines;
• and
• an inflatable member coupled to a spine of the plurality of spines approximate the distal end of the end effector such that the inflatable member is configured to collapse for delivery through a sheath and is configured to inflate in a deployed configuration, and such that the inflatable member in the deployed configuration prevents a distal end of the basket shape of the plurality of spines from contacting tissue.

An end effector of a medical probe, the end effector comprising:

• a plurality of spines extending along a longitudinal axis and configured to expand away from the longitudinal axis to form a basket shape;
• a first loop member comprising a first pair of spines of the plurality of spines and a first central region disposed approximate a distal end of the end effector;
• a second loop member comprising a second pair of spines of the plurality of spines and a second central region disposed approximate the distal end of the end effector, the second central region comprising a portion disposed over a distal surface of the first central region and at least one extension disposed under a proximal surface of the first central region;
• one or more electrodes coupled to each spine of the plurality of spines;
• and
• a plurality of inflatable members each coupled to a respective spine of the plurality of spines approximate the distal end of the end effector such that the plurality of inflatable members are configured to collapse for delivery through a sheath and are configured to inflate in a deployed configuration, and such that the plurality of inflatable members in the deployed configuration prevent a distal end of the basket shape of the plurality of spines from contacting tissue.