US 11,786,252 B2
Method and system for treating aneurysms
Stefan Schreck, Fallbrook, CA (US); and Jason Fox, San Carlos, CA (US)
Assigned to Endologix LLC, Irvine, CA (US)
Filed by Endologix LLC, Irvine, CA (US)
Filed on Aug. 23, 2019, as Appl. No. 16/549,925.
Application 16/549,925 is a continuation of application No. 15/205,365, filed on Jul. 8, 2016, granted, now 10,390,836.
Application 15/205,365 is a continuation of application No. 13/441,762, filed on Apr. 6, 2012, granted, now 9,415,195, issued on Aug. 16, 2016.
Claims priority of provisional application 61/473,051, filed on Apr. 7, 2011.
Claims priority of provisional application 61/472,209, filed on Apr. 6, 2011.
Prior Publication US 2019/0374225 A1, Dec. 12, 2019
Int. Cl. A61B 17/12 (2006.01); A61F 2/07 (2013.01); A61F 2/90 (2013.01); A61B 6/00 (2006.01); A61M 25/09 (2006.01); A61M 25/10 (2013.01); A61B 17/00 (2006.01)
CPC A61B 17/12036 (2013.01) [A61B 6/481 (2013.01); A61B 6/504 (2013.01); A61B 17/12118 (2013.01); A61B 17/12136 (2013.01); A61B 17/12186 (2013.01); A61F 2/07 (2013.01); A61F 2/90 (2013.01); A61M 25/09 (2013.01); A61M 25/104 (2013.01); A61M 25/1018 (2013.01); A61B 2017/00659 (2013.01); A61B 2017/1205 (2013.01); A61F 2002/075 (2013.01); A61F 2002/077 (2013.01); A61F 2230/0034 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A method of treating an aneurysm, said method comprising:
providing a first catheter and a second catheter each catheter having an expandable endobag, the expandable endobag comprising a double-walled filling structure with an aneurysm conforming outer wall and a blood transit lumen creating an inner wall surrounding an endoframe releasably coupled to the catheter and covered in an unexpanded configuration by a retractable sheath,
removing the sheath exposing the expandable endobag and expanding endoframe of each of the first and second catheters;
establishing communication between a fill line for the expandable endobag of the first catheter and a fill line for the expandable endobag of the second catheter and a curable filler material source to form an endobag filler circuit;
pre-filling the first or second catheter endobag with saline or contrast media so that an outer wall of the first filling structure conforms to an inside surface of the aneurysm and an inner wall of the first or second catheter endobag forms a first substantially tubular lumen to provide a first blood flow path across the aneurysm, and wherein the at least a portion of first endoframe is disposed in the first substantially tubular lumen, wherein releasing the contrast media is performed after the pre-filling;
imaging the flow of the contrast media using fluoroscopy to detect the presence of endoleaks around the first or second catheter endobag;
adjusting a filling pressure or volume of the pre-filled endobag until no endoleaks are observed during fluoroscopy;
recording the filling pressure and/or volume of the prefilled endobag at which fluoroscopy indicated that no endoleaks were observed, and
monitoring and controlling the pressure within the endobag filler circuit while using one source of curable filler material to pressurize the endobag filler circuit thereby simultaneously pressurizing the fill line for each expandable endobag of the first and second catheters causing the expandable endobags disposed across the aneurysm within the patient to inflate to fill the aneurysm and press against each other and the aneurysmal wall.