Device for removing kidney stones

A system for removing a kidney stone from a ureter, the system comprising:

• a handle;
• a shaft slider coupled with the handle and configured to slide back and forth along the handle;
• a retention member slider coupled with the handle and configured to slide back and forth along the handle independently from the shaft slider;
• an elongate, flexible, outer shaft, having a distal end configured to be advanced into the ureter and a proximal end fixedly attached to the shaft slider, such that when the shaft slider slides back and forth along the handle, the outer shaft slides with the shaft slider;
• a wall protection member shaft coaxially disposed within the outer shaft;
• a compliant ureter wall protection member, having a first end coupled with the distal end of the outer shaft and a second end coupled with a distal end of the wall protection member shaft;
• an elongate, flexible, inner shaft extending coaxially within at least part of the wall protection member shaft and having a proximal end fixedly attached to the handle such that the inner shaft does not move relative to the handle;
• an expandable stone retention member extending coaxially within at least part of the inner shaft and moveable along the longitudinal axis relative to the inner shaft, wherein the stone retention member comprises:
• a retention member shaft forming a lumen and having a proximal end fixedly attached to the retention member slider, such that when the retention member slider slides back and forth along the handle, the retention member shaft slides with the retention member slider;
• and
• an expandable basket disposed at a distal end of the retention member shaft;
• and
• an elongate, flexible camera positioned coaxially within the lumen of the retention member shaft, wherein a proximal end of the camera is fixedly attached to the handle, wherein the retention member shaft slides back and forth between the inner shaft and the camera.