US 12,311,127 B2
Radial and trans-endocardial delivery catheter
Wai Hsueh, Newark, CA (US); Olin Jay Palmer, San Carlos, CA (US); Scott Comiso, Menlo Park, CA (US); James B. Ross, Livermore, CA (US); Ken Vien, San Jose, CA (US); Julio Argentieri, Buenos Aires (AR); and Peter Altman, Menlo Park, CA (US)
Assigned to BioCardia Inc., Sunnyvale, CA (US)
Filed by BioCardia, Inc., Sunnyvale, CA (US)
Filed on Jun. 2, 2022, as Appl. No. 17/831,189.
Application 16/059,480 is a division of application No. 14/501,635, filed on Sep. 30, 2014, granted, now 10,071,226, issued on Sep. 11, 2018.
Application 17/831,189 is a continuation of application No. 17/010,603, filed on Sep. 2, 2020, granted, now 11,986,611.
Application 17/010,603 is a continuation of application No. 16/059,480, filed on Aug. 9, 2018, granted, now 10,780,248, issued on Sep. 22, 2020.
Claims priority of provisional application 61/884,834, filed on Sep. 30, 2013.
Prior Publication US 2022/0305237 A1, Sep. 29, 2022
Int. Cl. A61M 25/06 (2006.01); A61M 25/00 (2006.01); A61M 25/09 (2006.01); A61B 17/00 (2006.01); A61B 90/00 (2016.01)
CPC A61M 25/0606 (2013.01) [A61M 25/0084 (2013.01); A61M 25/09 (2013.01); A61B 2017/00247 (2013.01); A61B 2090/036 (2016.02); A61M 2025/0089 (2013.01); A61M 2025/09166 (2013.01); A61M 2025/09175 (2013.01); A61M 2025/09191 (2013.01)] 29 Claims
OG exemplary drawing
 
1. A method of forming a helical needle, the method comprising:
(a) wrapping a distal portion of a hypotube onto a mandrel, the wrapped distal portion of the hypotube being in a helical configuration about a central axis of the helical distal portion when wrapped onto the mandrel;
(b) cutting a primary facet at the distal end of the helical distal portion;
(c) cutting at least one secondary facet at the distal end of the helical distal portion; and
(d) forming a tail portion proximal to the helical distal portion.