Due to a proprietary surface modification, the Pipeline Embolization Device Family implants demonstrate a reduction in thrombus formation compared to a bare flow diverter.*
*Data is derived from referenced bench testing and may not be representative of clinical performance.
What makes Shield Technology™ different?
Unlike traditional flow diverters with surface coatings, Shield Technology™ is a surface modification adhered to the implant by covalently bonding through a chemical reaction.1, 8 The thickness of Shield Technology™ is less than ~3 nanometers (0.01% of one braid wire).17
Shield Technology™ is Backed by Science
The effectiveness of Shield Technology™ was assessed in several preclinical models, including:
This hydrophilic property of Shield Technology™ leads to an improvement in performance.6, 2*
The polarity of the phosphorylcholine creates a hydrophilic surface thus reducing friction in the presence of water, saline or blood.
Image A: Bare Cobalt Chromium Alloy
Image B: Cobalt Chromium Alloy with Shield Technology™
The significant decrease in water contact angle from A (bare Co-Cr) to B (Co-Cr with Shield Technology™ indicates hydrophilicity (lower resistance) as a result of the surface modification.6*
*Data is derived from referenced bench testing and may not be representative of clinical performance.
Pipeline™ Flex with
Shield Technology™
The clinically proven11 Pipeline™ Flex device redefines treatment for large or giant wide-necked intracranial aneurysms by diverting flow away from the aneurysm neck, reconstructing the parent artery and restoring its natural course.12,13 Learn about the engineering behind our Flow Diverters.
Girdhar G, Li J, Kostousov L, Wainwright J, Chandler WL. In-vitro thrombogenicity assessment of flow diversion and aneurysm bridging devices. J Thromb Thrombolysis. 2015 Nov;40(4):437-43. doi: 10.1007/s11239-015-1228-0. PMID: 25975924.
Matsuda Y, Chung J, Lopes DK. Analysis of neointima development in flow diverters using optical coherence tomography imaging. J Neurointerv Surg. 2018 Feb;10(2):162-167. doi: 10.1136/neurintsurg-2016-012969. Epub 2017 Jun 7. PMID: 28592484; PMCID: PMC5800337.
Caroff J, Tamura T, King RM, Lylyk PN, Langan ET, Brooks OW, Clarençon F, Wainwright JM, Spelle L, Marosfoi M, Gounis MJ, Puri AS. Phosphorylcholine surface modified flow diverter associated with reduced intimal hyperplasia. J Neurointerv Surg. 2018 Nov;10(11):1097-1101. doi: 10.1136/neurintsurg-2018-013776. Epub 2018 Mar 6. PMID: 29511117.
Medtronic Internal Study, TR-NV11991 Rev. B, Performance Evaluation of the Pipeline Flex Embolization Device with Shield Technology
Platelet Activation and Factors for Clot Formation https://youtu.be/R8JMfbYW2p4?si=05Oi7V1F1PVLnzSH
Girdhar G, Li J, Kostousov L, Wainwright J, Chandler WL. In-vitro thrombogenicity assessment of flow diversion and aneurysm bridging devices. J Thromb Thrombolysis. 2015 Nov;40(4):437-43. doi: 10.1007/s11239-015-1228-0. PMID: 25975924.
Gaurav Girdhar, Samantha Ubl, Reza Jahanbekam, Sinduja Thinamany, Anna Belu, John Wainwright, Michael F. Wolf, Thrombogenicity assessment of Pipeline, Pipeline Shield, Derivo and P64 flow diverters in an in vitro pulsatile flow human blood loop model,eNeurologicalSci,Volume 14,2019,Pages 77-84,ISSN 2405-6502,https://doi.org/10.1016/j.ensci.2019.01.004.
PEDESTRIAN - Lylyk I, Scrivano E, Lundquist J, Ferrario A, Bleise C, Perez N, Lylyk PN, Viso R, Nella-Castro R, Lylyk P. Pipeline Embolization Devices for the Treatment of Intracranial Aneurysms, Single-Center Registry: Long-Term Angiographic and Clinical Outcomes from 1000 Aneurysms. Neurosurgery. 2021 Aug 16;89(3):443-449. doi: 10.1093/neuros/nyab183. PMID: 34098575; PMCID: PMC8374967.
Medtronic Internal Report FD3456 Rev B, PUFS 5 Year CSR
Becske T, Kallmes DF, Saatci I, McDougall CG, Szikora I, Lanzino G, Moran CJ, Woo HH, Lopes DK, Berez AL, Cher DJ, Siddiqui AH, Levy EI, Albuquerque FC, Fiorella DJ, Berentei Z, Marosfoi M, Cekirge SH, Nelson PK. Pipeline for uncoilable or failed aneurysms: results from a multicenter clinical trial. Radiology. 2013 Jun;267(3):858-68. doi: 10.1148/radiol.13120099. Epub 2013 Feb 15. PMID: 23418004.
Kallmes, DF et al. International Retrospective Study of the Pipeline Embolization Device: A Multicenter Aneurysm Treatment Study, AJNR Published online, Oct 29, 2014
Gaurav Girdhar, Samantha Ubl, Reza Jahanbekam, Sinduja Thinamany, Anna Belu, John Wainwright, Michael F. Wolf,Thrombogenicity assessment of Pipeline, Pipeline Shield, Derivo and P64 flow diverters in an in vitro pulsatile flow human blood loop model,eNeurologicalSci,Volume 14,2019,Pages 77-84,ISSN 2405-6502,https://doi.org/10.1016/j.ensci.2019.01.004.
Girdhar G, Li J, Kostousov L, Wainwright J, Chandler WL. In-vitro thrombogenicity assessment of flow diversion and aneurysm bridging devices. J Thromb Thrombolysis. 2015 Nov;40(4):437-43. doi: 10.1007/s11239-015-1228-0. PMID: 25975924.
Rice H, de Villiers L, Owusu M, et al. Five-year australian experience with pipeline™ flex embolization devices with shield technology™: real world evidence (SCOPE-AUS). Journal of NeuroInterventional Surgery 2019;11:A7.
Pipeline™ Flex Embolization Device with Shield Technology™ (ISW)
Pipeline™ Vantage Embolization Device with Shield Technology™ (ISW)