US 12,239,554 B2
Hybrid stent
Michael A. Longo, Glenmoore, PA (US); and William James Harrison, Signal Mtn, TN (US)
Assigned to VESPER MEDICAL, INC., Wayne, PA (US)
Filed by Vesper Medical, Inc., Wayne, PA (US)
Filed on Jun. 29, 2022, as Appl. No. 17/852,457.
Application 16/397,085 is a division of application No. 15/712,704, filed on Sep. 22, 2017, granted, now 10,271,977, issued on Apr. 3, 2019.
Application 17/852,457 is a continuation of application No. 16/799,233, filed on Feb. 24, 2020, granted, now 11,376,142.
Application 16/799,233 is a continuation of application No. 16/397,085, filed on Apr. 29, 2019, granted, now 10,588,764.
Claims priority of provisional application 62/555,894, filed on Sep. 8, 2017.
Prior Publication US 2022/0323244 A1, Oct. 13, 2022
Int. Cl. A61F 2/91 (2013.01); A61F 2/07 (2013.01); A61F 2/89 (2013.01); A61F 2/915 (2013.01); A61F 2/82 (2013.01)
CPC A61F 2/91 (2013.01) [A61F 2/07 (2013.01); A61F 2/89 (2013.01); A61F 2/915 (2013.01); A61F 2002/823 (2013.01); A61F 2002/91575 (2013.01); A61F 2250/0018 (2013.01); A61F 2250/0036 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A stent comprising:
a stent tube having stent tube length L0, the stent tube comprising:
a high radial force segment having a first radial force RF1 having a vector parallel to a radial direction of the stent tube, a first flexibility F1, whereby two points along a surface of the tube in an axial direction are moveable toward each other, and a length L1;
wherein first radial force R1 is a vector measure of forces in a direction parallel to a radial direction of the stent tube in length L1; and
wherein first flexibility F1 is measure of movability of two points along a surface of the tube in an axial direction of length L1 toward each other; and
a highly flexible segment having a second radial force RF2, a second flexibility F2 and a length L2;
wherein second radial force R2 is a vector measure of forces in a direction parallel to a radial direction of the stent tube in length L2; and
wherein second flexibility F2 is measure of movability of two points along a surface of the tube in an axial direction of length L2 toward each other;
wherein the stent tube length includes length L1 and length L2, where L2>L1;
wherein RF1>RF2; and
F1<F2, and
wherein first radial force RF1 is independent of first flexibility F1 and second radial force RF2 is independent of second flexibility F2.