US 12,434,047 B2
Titanium alloy contact ring element having low modulus and large elastic elongation
Bernard Q. Li, Plymouth, MN (US); Alan Shi, Plymouth, MN (US); Daniel S. Sorensen, Blaine, MN (US); Darren A. Janzig, Center City, MN (US); and Margaret Bush, Minneapolis, MN (US)
Assigned to Medtronic, Inc., Minneapolis, MN (US)
Filed by Medtronic, Inc., Minneapolis, MN (US)
Filed on Jan. 23, 2020, as Appl. No. 16/750,126.
Application 16/750,126 is a continuation of application No. 15/609,142, filed on May 31, 2017, granted, now 10,576,266.
Application 15/609,142 is a continuation of application No. 14/640,469, filed on Mar. 6, 2015, granted, now 9,694,173, issued on Jul. 4, 2017.
Claims priority of provisional application 61/949,343, filed on Mar. 7, 2014.
Prior Publication US 2020/0155827 A1, May 21, 2020
Int. Cl. B23H 9/00 (2006.01); A61N 1/00 (2006.01); A61N 1/05 (2006.01); A61N 1/375 (2006.01); C22C 14/00 (2006.01); C22F 1/18 (2006.01)
CPC A61N 1/05 (2013.01) [A61N 1/00 (2013.01); A61N 1/3752 (2013.01); B23H 9/00 (2013.01); C22C 14/00 (2013.01); C22F 1/183 (2013.01); Y10T 29/49826 (2015.01); Y10T 29/49872 (2015.01)] 17 Claims
OG exemplary drawing
 
1. A contact ring element for electrically coupling a medical lead to an implantable medical device, comprising:
a tubular body formed from a solid, annealed rod of Ti-15Mo alloy material having an outer diameter between 2 mm and 10 mm, a Young's Modulus of less than 13.5 Mpsi, an elastic range or strain of at least 0.7%, and 0.1 to 3% by weight of alpha-phase titanium, the tubular body defining a cavity configured to receive a lead and an outer diameter between 1.2 mm and 5 mm; and
a plurality of resiliently deflectable elements extending from the tubular body into the cavity, each of the resiliently deflectable elements having a lead contacting portion configured to contact a lead when the lead is received in the cavity,
wherein the resiliently deflectable elements are formed of the Ti-15Mo alloy material having the Young's Modulus of less than 13.5 Mpsi, the elastic range or strain of at least 0.7%, and the 0.1 to 3% by weight of alpha-phase titanium.