The goal of this clinical investigation is to learn if the Recana Thrombectomy Catheter System can treat chronic venous obstruction and occlusion in participants with symptomatic post-thrombotic venous inflow/outflow obstruction. The main questions the clinical investigation aims to answer are:
1. primary safety endpoint: procedural events defined as the rates of all adverse events occurring up to 30 days post-index procedure
2. primary efficacy endpoint: greater than or equal to 50 percent (%) lumen diameter achieved during the index procedure, which is measured using intravascular ultrasound (IVUS) at the time of the procedure (perioperative/periprocedural)
Participants are screened and qualified for the clinical investigation. Qualifed participants (those that meet all eligibility criteria) will undergo treatment with the Recana Thrombectomy Catheter System. Participants are assessed at the following timepoints: 30, 90, 180 and 365 days post-procedure.