US 12,070,221 B2
Devices, systems, and methods for treating aneurysms
Mehdi Matteo Rashidi, Irvine, CA (US); Junwei Li, Irvine, CA (US); Belinko K. Matsuura, Encinitas, CA (US); David G. Matsuura, Solana Beach, CA (US); and Nelson M. Siu, Encinatas, CA (US)
Assigned to COVIDIEN LP, Mansfield, MA (US)
Filed by Covidien LP, Mansfield, MA (US)
Filed on Jul. 30, 2022, as Appl. No. 17/816,398.
Prior Publication US 2024/0032933 A1, Feb. 1, 2024
Int. Cl. A61B 17/12 (2006.01)
CPC A61B 17/12113 (2013.01) [A61B 17/1214 (2013.01); A61B 2017/12054 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A treatment system comprising:
a delivery shaft having a proximal portion, a distal portion, and a lumen extending therethrough, wherein the distal portion is configured to be intravascularly positioned proximate an aneurysm;
a manipulation shaft slidably positioned within the lumen of the delivery shaft, the manipulation shaft having a proximal portion and a distal portion;
an occlusive device positioned within the lumen of the delivery shaft and coupled to the distal portion of the manipulation shaft, the occlusive device being configured for implantation within the aneurysm, wherein the occlusive device has a proximal end, a distal end, and comprises a plurality of filaments that are secured to one another at the proximal end by a cured material;
a detachment element comprising a first end carried by the distal portion of the manipulation shaft and a second end embedded within the cured material at the proximal end of the occlusive device such that the detachment element couples the manipulation shaft to the occlusive device,
wherein the detachment element is configured so that application of current through the detachment element causes the detachment element to selectively break between the manipulation shaft and the cured material, thereby decoupling the occlusive device from the manipulation shaft; and
wherein the manipulation shaft comprises a tubular sidewall, and wherein the detachment element comprises a region of the sidewall having a plurality of longitudinally extending fingers defining a plurality of windows, each window positioned between circumferentially adjacent fingers, and wherein each window comprises a cut-out region in the sidewall.