Advancing Care, Minimizing Air
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We always seek ways to support you
As your Aortic Ally, we listen carefully when we hear conversations around patient outcomes. In recent literature, questions have been raised around the volume of air released by TEVAR endografts. Estimates ranged from 0.10 - 1.02 mL (average: 0.59 mL) based on limited testing using various flushing techniques not included in respective device Instructions for Use.1,2
We’re here to clear the air
When used as recommended, 3-5 Gore TEVAR solutions facilitate a means for minimizing air.*
Distinctive designs enable effective techniques:
- Constraining sleeve: Enables use with the exclusive GORE® DRYSEAL Valve.
- Pressurized valve: Creates a squeegee effect, removing air from the constrained device during insertion.
- Back-bleeding: Pausing insertion allows blood to flow back out of the exposed end of the device, releasing additional air.
Unique TEVAR Systems in Action
Evaluating air volume with clinically relevant testing methods
An integrated approach in action
To evaluate air volume, we developed a clinically relevant test method that simulated recommended use3-5 and physiological conditions.*
- GORE® DRYSEAL Valve inflated with 2.5 mL saline.3
- Back-bleeding technique.4-5
- Devices deployed in blood mimic with mean arterial pressure (67 mmHg).
Across all devices and configurations, recommended use reduced average air volume to minimal levels in testing.
GORE® DRYSEAL
Flex Introducer Sheath
techonology alone
GORE® DRYSEAL
Flex Introducer Sheath
+ back-bleeding technique
Bench-top evaluations are intended to demonstrate relative physical characteristics and may not correlate to clinical results. The test method here was designed to simulate physiological conditions as closely as possible, with the intent to capture relevant data that would demonstrate likely clinical results.
Related to this product
* Data on file 2023; W. L. Gore & Associates, Inc; Flagstaff, AZ.
- Rohlffs F, Tsilimparis N, Saleptsis V, Diener H, Debus ES, Kölbel T. Air embolism during TEVAR: carbon dioxide flushing decreases the amount of gas released from thoracic stent-grafts during deployment. Journal of Endovascular Therapy 2017;24(1):84-88.
- Inci K, Koutouzi G, Chernoray V, Jeppsson A, Nilsson H, Falkenberg M. Air bubbles are released by thoracic endograft deployment: an in vitro experimental study. SAGE Open Medicine. In press.
- GORE® DRYSEAL Flex Introducer Sheath [Instructions for Use]. Flagstaff, AZ: W. L. Gore & Associates, Inc; 2025. MD172269.
- GORE® TAG® Conformable Thoracic Stent Graft [Instructions for Use]. Flagstaff, AZ: W. L. Gore & Associates, Inc; 2025. MD172235.
- GORE® TAG® Thoracic Branch Endoprosthesis (TBE) [Instructions for Use]. Flagstaff, AZ: W. L. Gore & Associates, Inc; 2025. MD185770.
CBAS is a trademark of Carmeda AB, a wholly owned subsidiary of W. L. Gore & Associates, Inc. GORE, Together, improving life, DRYSEAL, TAG and designs are trademarks of W. L. Gore & Associates, Inc.
Refer to Instructions for Use at eifu.goremedical.com for a complete description of all applicable indications, warnings, precautions and contraindications for the markets where this product is available. RXOnly
INDICATIONS FOR USE IN EUROPE: The GORE® TAG® Conformable Thoracic Stent Graft is indicated for endovascular repair of all lesions of the descending thoracic aorta, including isolated lesions, such as aneurysm and traumatic transection, and Type B dissections.
CONTRAINDICATIONS: The GORE® TAG® Conformable Thoracic Stent Graft is contraindicated in: Patients with known sensitivities or allergies to the device materials Patients with a systemic infection who may be at risk of endovascular graft infection.
INDICATIONS FOR USE IN EUROPE: The GORE® TAG® Thoracic Branch Endoprosthesis is intended for endovascular repair of all lesions of the descending thoracic aorta (including isolated lesions, such as aneurysm and traumatic transection, and Type B dissections) while maintaining flow into the left subclavian artery, in patients who have appropriate anatomy.
CONTRAINDICATIONS: The GORE® TAG® Thoracic Branch Endoprosthesis is contraindicated in: Patients with known sensitivities or allergies to the device materials [ePTFE (polytetrafluoroethylene), FEP (Fluoroethylpropylene), Nitinol (Nickel, Titanium), Gold, SB Component only - Heparin (CBAS® Heparin surface]; Patients who have a condition that threatens to infect the graft; Patients with known hypersensitivity to heparin, including those patients who have had a previous incident of Heparin-Induced Thrombocytopenia (HIT) type II.