US 9,808,359 B2
Treatment systems processes and devices addressing cerebral vasospasm/vasoconstriction
David A. Ferrera, Coto De Caza, CA (US); Joshua Benjamin, Mission Viejo, CA (US); Pervinder Bhogal, London (GB); and Michael Söderman, Stockholm (SE)
Assigned to NEURVANA MEDICAL, LLC, Tustin, CA (US)
Filed by David A. Ferrera, Coto De Caza, CA (US); Joshua Benjamin, Mission Viejo, CA (US); Pervinder Bhogal, London (GB); and Michael Söderman, Stockholm (SE)
Filed on May 13, 2016, as Appl. No. 15/154,927.
Claims priority of provisional application 62/253,025, filed on Nov. 9, 2015.
Claims priority of provisional application 62/235,543, filed on Sep. 30, 2015.
Claims priority of provisional application 62/235,361, filed on Sep. 30, 2015.
Prior Publication US 2017/0086992 A1, Mar. 30, 2017
Int. Cl. A61F 2/844 (2013.01); A61F 2/90 (2013.01); A61F 2/966 (2013.01); A61L 31/02 (2006.01); A61L 31/14 (2006.01); A61L 31/16 (2006.01); A61L 31/18 (2006.01); A61F 2/95 (2013.01)
CPC A61F 2/844 (2013.01) [A61F 2/90 (2013.01); A61F 2/966 (2013.01); A61L 31/022 (2013.01); A61L 31/148 (2013.01); A61L 31/16 (2013.01); A61L 31/18 (2013.01); A61F 2002/9528 (2013.01); A61F 2210/0004 (2013.01); A61F 2250/0059 (2013.01); A61F 2250/0067 (2013.01); A61F 2250/0098 (2013.01); A61L 2300/416 (2013.01); A61L 2300/418 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A treatment methodology for vasospasm secondary to another procedure, which comprises the steps listed in the order presented:
Emplacing a guide catheter system into a neurological image confirmed vasospasmed vessel;
Following said guide catheter with a self-expanding sheathed retrievable specialized stent, having radial force sufficient to dilatate the subject vessel;
Wherein the specialized stent comprising self-expanding modular units having a multiplicity of smaller cells, being open or closed celled and elongated longitudinally from distal to proximal ends;
Whereby the specialized stent is kept in place while a microcatheter (MC) is withdrawn to the level of a proximal end of the specialized stent, the specialized stent is thus deployed without being advanced or retracted;
The specialized stent is kept in place for at least about less than five minutes;
Resheathing of the specialized stent by advancing the MC while the specialized stent is kept immobile; and
Retraction of the MC to the Internal Carotid Artery (ICA) or Vertebral Artery (Vert Art) with the specialized stent still inside; then Control angiography through the guiding catheter to confirm vessel status and optionally
Said procedure may be repeated in the same or other vessels to achieve long term dilatation of the vessel without vasospasm.