Translation catheters, systems, and methods of use thereof

A method, comprising:

• introducing, into a body of a subject, a catheter system that includes:
• a catheter, having a curveable portion proximate a distal end of the catheter,
• a first tether, coupled to a first portion of the catheter system, and passing proximally through at least a portion of the catheter, and
• a second tether, attached to the curveable portion;
• positioning the catheter system such that the first portion is disposed at a first location in the body;
• piercing tissue at the first location with the first portion;
• and
• subsequently to piercing the tissue at the first location, and while the first portion remains at the first location, translating the catheter away from the first portion by manipulating the first tether and the second tether.

A method, comprising:

• introducing, into a body of a subject, a catheter system that includes:
• a first catheter, having a curveable portion proximate a distal end of the first catheter,
• a second catheter, and
• a first tether, coupled to the second catheter, and passing proximally through at least a portion of the first catheter, and
• a second tether, attached to the curveable portion;
• positioning the catheter system such that the curveable portion extends from the second catheter to be disposed at a first location in the body;
• and
• while the curveable portion remains at the first location, translating the second catheter away from the curveable portion by manipulating the second tether and manipulating the first tether in a manner that increases an amount of the first tether that is exposed between the first catheter and the second catheter.