US 12,324,621 B2
Catheter with improved irrigated tip electrode having two-piece construction, and method of manufacturing therefor
Jeffrey L. Clark, Castaic, CA (US); Daniel Gonzalez, La Verne, CA (US); John Thompson, San Clemente, CA (US); and Ivan Totten, La Verne, CA (US)
Assigned to BIOSENSE WEBSTER (ISRAEL) LTD., Yokneam (IL)
Filed by BIOSENSE WEBSTER (ISRAEL) LTD., Yokneam (IL)
Filed on Oct. 13, 2023, as Appl. No. 18/486,429.
Application 18/486,429 is a continuation of application No. 17/090,886, filed on Nov. 5, 2020, granted, now 11,819,266.
Application 17/090,886 is a continuation of application No. 13/958,455, filed on Aug. 2, 2013, granted, now 10,828,089, issued on Nov. 10, 2020.
Prior Publication US 2024/0032998 A1, Feb. 1, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 18/14 (2006.01); A61B 17/00 (2006.01)
CPC A61B 18/1492 (2013.01) [A61B 2017/00526 (2013.01); A61B 2218/002 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A catheter comprising:
a catheter body;
an intermediate section distal of the catheter body; and
a distal section distal of the intermediate section, the distal section comprising a tip electrode and a non-conductive covering disposed between the tip electrode and the intermediate section, the tip electrode comprising:
a shell piece having a hollow cylindrical body with an open proximal end defined by a peripheral rim,
a support member piece having a generally cylindrical body, including a proximal portion and a distal portion, and an annular ridge projecting from an outer surface of the proximal portion and,
a joint seam that is formed by an abutment of the annular ridge and the peripheral rim and a weld, the weld comprising at least one seam weld and at least one penetration weld.