Axial lengthening thrombus capture system, tensioning system and expandable funnel catheter

A capture system comprising:

• a tubular body comprising a first end, a second end, and an axial length therebetween, the first end having an opening and a capture guide;
• one or more tensioners coupled to the capture guide;
• and
• a catheter comprising:
• an expandable funnel;
• and
• a shaft, wherein the tubular body is configured to be retracted into the shaft through the expandable funnel, and wherein at least part of the shaft is configured to expand,
• wherein the tubular body has a first configuration in which the first end and the capture guide are expanded and the one or more tensioners are activated while the second end and a majority of the tubular body remains compressed and the tubular body has a first expanded axial length and a first width along the first expanded axial length,
• wherein the tubular body is transformable to a second configuration, the tubular body has a second expanded axial length greater than the first expanded axial length and the tubular body has a second width along the second expanded axial length.