EXTENDING LONG-TERM VESSEL PATENCY IN PATIENTS WITH OBSTRUCTIONS IN THE DIALYSIS OUTFLOW CIRCUIT
Dialysis patients can often experience complications due to stenosis and occlusions in the dialysis outflow circuit. This can lead to repeated interventions, frequent trips to the hospital, and inadequate dialysis treatments. The Merit WRAPSODY Cell-Impermeable Endoprosthesis is built to combat these challenges and extend long-term vessel patency rates.
Features & Benefits
UNIQUE TRI-LAYERED CELL-IMPERMEABLE ENDOPROSTHESIS MICROSTRUCTURE
INSIDE NOVEL SPUN GRAFT LAYER
The innermost layer of the WRAPSODY is made of a biocompatible, novel spun PTFE layer designed to limit inflammation and thrombus formation without coatings, chemicals, or drugs.
MIDDLE CELL-IMPERMEABLE GRAFT LAYER
The WRAPSODY is engineered with an impermeable middle graft layer built to prevent transmural cellular migration without the use of drug bonding.
Dolmatch, et al. JVIR. 2020; 31: 494–502.1 Evaluation of a Novel Spun Polytetrafluoroethylene Stent Graft in an Ovine External Iliac Artery Model Purpose: To compare the patency, tissue response, and thrombogenicity of the WRAPSODY and a leading ePTFE covered stent.
The WRAPSODY’s cell-impermeable middle graft layer prevents cellular migration and tissue accumulation (as shown in pink) across device layers and around nitinol stent struts better than the leading ePTFE covered stent.
Cross-Sectional Histology Images: Left External Iliac, Animal, 180 days1
OUTER ePTFE STANDARD LAYER
The outer layer of the WRAPSODY is engineered with a standard, biocompatible ePTFE material that allows for necessary tissue ingrowth to prevent stent migration.
Close up of the outer ePTFE on the left, and tissue ingrowth on the right
SOFTENED END ROWS REDUCE EDGE STENOSIS
WRAPSODY’S end rows are designed with less radial force (1) to better conform to healthy tissue, reduce vessel trauma, and improve long-term patency. Additionally, nitinol struts (2) allow for upsizing of up to 25% for superior vessel conformance
RADIAL STRENGTH AND COMPRESSION RESISTANCE
Allows the cell-impermeable endoprosthesis to withstand intraluminal forces AND extrinsic pressure placed on the device – and is consistent across all diameter sizes
1 – Racheted Deployment Handle
for one-handed accurate and controlled cell-impermeable stent graft placement
2 – Single Port
for flushing guide wire lumen and cell-impermeable stent graft pod
3 – Safety Clip
to prevent inadvertent deployment
4 – Radiopaque Marker Bands
for enhanced visualisation
5 – Soft Atraumatic Tip
for a seamless transition over a 0.035″ guide wire
Allows smooth insertion & withdrawal, along with exceptional trackability
Clinical Case Reviews
Treatment of Left Subclavian Vein Occlusion From a Large Sheath in the Upper Arm with a 16mm Diameter WRAPSODY
Treatment of a Recurrent Left Subclavian Vein Occlusion with WRAPSODY
Treatment of a Cephalic Arch Stenosis with WRAPSODY