US 11,872,358 B2
Catheter with improved loop contraction and greater contraction displacement
Ricardo Padilla, Tustin, CA (US); Homero Padilla, Rancho Cucamonga, CA (US); Julie Bui, Rosemead, CA (US); Mario Solis, Rancho Cucamonga, CA (US); Thomas Selkee, Claremont, CA (US); Jose Jimenez, Ontario, CA (US); Keshava Datta, Chino Hills, CA (US); and Fernando Salazar, Pomona, CA (US)
Assigned to BIOSENSE WEBSTER (ISRAEL) LTD., Yokneam (IL)
Filed by BIOSENSE WEBSTER (ISRAEL) LTD., Yokneam (IL)
Filed on Feb. 11, 2021, as Appl. No. 17/174,135.
Application 17/174,135 is a continuation of application No. 15/470,291, filed on Mar. 27, 2017, granted, now 10,918,832.
Prior Publication US 2021/0162178 A1, Jun. 3, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 18/14 (2006.01); A61M 25/01 (2006.01); A61B 5/00 (2006.01); A61M 25/00 (2006.01); A61B 5/287 (2021.01); A61B 18/00 (2006.01); A61B 17/00 (2006.01)
CPC A61M 25/0147 (2013.01) [A61B 5/287 (2021.01); A61B 5/6857 (2013.01); A61B 18/1492 (2013.01); A61M 25/005 (2013.01); A61B 2017/00318 (2013.01); A61B 2018/00196 (2013.01); A61B 2018/00375 (2013.01); A61B 2018/00577 (2013.01); A61B 2018/00839 (2013.01); A61B 2018/1435 (2013.01); A61B 2218/002 (2013.01); A61B 2562/0209 (2013.01); A61B 2562/043 (2013.01); A61M 2025/015 (2013.01); A61M 2205/0266 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An electrophysiology catheter comprising:
an elongated catheter body;
a contraction wire; and
a distal assembly configured for contraction by actuation of the contraction wire, the distal assembly comprising:
a plurality of ablation-reservoir electrodes, each including a side wall and an exit aperture disposed through the side wall; and
a shape-memory support member comprising:
a proximal generally rectangular portion comprising a first flat side having a first height and a first rounded side having a first width,
an intermediate generally rectangular portion distal of the proximal generally rectangular portion comprising a second flat side having a second height that is greater than the first height and a second rounded side having a width that is less than the first width,
a distal generally rectangular portion distal of the intermediate generally rectangular portion comprising a third flat side having a third height that is greater than the second height and a third rounded side having a third width that is less than the second width, and
a distal end distal of the distal generally rectangular portion having a round cross section.