Neqstent Coil Assisted Flow Diverter
Dual mesh construction for improved stability
Treats a wide range of unruptured aneurysm morphologies including wide-necked bifurcation and bifurcation aneurysms. Adjunctive device providing stable aneurysm neck coverage for the placement of embolization coils within sac and long term stable occlusion of the aneurysm.
-
Requires the physician to size only to the aneurysm neck;
-
Smooth and controlled delivery into aneurysm sac;
-
Minimal arterial components and some flow diverting properties to reduce coil compaction and recurrences;
-
Delivered using established catheterization techniques;
-
Electrolytic method of detachment.
1. Guidewire passing through mesh
2. Advance microcatheter to mesh
3. Advance microcatheter over wire through mesh
4. Advance coil through microcatheter into the aneurysm
Magnetic Resonance Imaging (MRI) Safety Information
Non-clinical testing demonstrated that the Neqstent implant is MR Conditional. A patient with this device can be scanned safely in an MR system immediately after placement under the following conditions:
-
Static magnetic field of 1.5 Tesla and 3 Tesla, only
-
Maximum spatial gradient magnetic field of 2,000-gauss/cm (20 Tesla/m) (extrapolated) or less
-
Maximum MR system reported, whole body averaged specific absorption rate (SAR) of 4 W/kg for 15 minutes of scanning (i.e., per pulse sequence) in the First Level Controlled Operating Mode of operation for the MR system.
Under the scan conditions defined above, the implant is expected to produce a maximum temperature rise of 2.3°C after 15 minutes of continuous scanning (i.e., per pulse sequence).
In non-clinical testing, the image artifact caused by the implant extends approximately 10 mm from the implant when imaged using a gradient echo pulse sequence and a 3 Tesla MR system.
Caution: Neqstent is not available for sale in the United States.
Indications for Use
The Neqstent™ is indicated for use in conjunction with conventional embolic coils for endovascular embolization of intracranial aneurysms.
Contraindications
· Inability to access the target aneurysm with a microcatheter
· Patient anatomy or physiology considered unsuitable for endovascular treatment
· Allergy to platinum, nickel or titanium
· Aneurysm not appropriate geometry for device