Cook Venous Valve System for Treatment of Chronic Venous Insufficiency

Limited inclusion criteria:

• Documented symptomatic deep venous reflux in one limb

• Deep venous reflux in the region of interest

Limited exclusion criteria:

General:

• Age < 18 years

• BMI ≥ 40

• Cultural objections to porcine materials

• Unwillingness or inability to comply with the follow-up

• Unwillingness to provide study data for duration of study

• Simultaneous participation in another device or drug study

• Inability or refusal to give informed consent

Medical:

• Pregnant, or planning to become pregnant

• Diagnosis of terminal illness with life expectancy less than 12 months

• Complete symptom resolution with compliant compression therapy for three months

• Untreated superficial venous disease

• Medical interventions including any of the following: planned procedure of any leg,vascular intervention or major surgery within the last three months, implantedinferior vena cava filter

• Medical history of any of the following: anticoagulation treatment for pulmonaryembolism (within the last six months or ongoing), insulin dependent diabetes,chronic obstructive pulmonary disease, renal dysfunction requiring dialysis, legamputation, bleeding diathesis, untreated or unresolved systemic infection or localinfection, active malignancy except non-melanoma skin cancer, other acute or chronicmedical condition that may cause noncompliance with the protocol or confound thestudy results, documented history of significant untreated stenosis within thearterial system

• Positive coronavirus (COVID-19) test six days prior to implant procedure

Anatomical:

• Inability to clearly visualize target implantation site

• Tortuous target implantation site

• Inadequate inflow and/or outflow to the target region

Procedural:

• Inability to gain access to the access site vein

• Untreated focal or diffuse stenosis