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Stent with dual support structureRelated Patent Categories: Prosthesis (i.e., Artificial Body Members), Parts Thereof, Or Aids And Accessories Therefor, Arterial Prosthesis (i.e., Blood Vessel), Stent Structure, Having Multiple Connected BodiesStent with dual support structure description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20070088429, Stent with dual support structure. Brief Patent Description - Full Patent Description - Patent Application Claims
I. CROSS-REFERENCE TO RELATED APPLICATIONS [0001] The present application is a continuation-in-part of co-pending and commonly assigned U.S. patent application Ser. No. 09/545,810 which is a continuation of commonly assigned U.S. patent application Ser. No. 09/049,486 filed Mar. 27, 1998, now U.S. Pat. No. 6,132,460. II. BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] This invention pertains to stents for use in intraluminal applications. More particularly, this invention pertains to a novel structure for such stents. [0004] 2. Description of the Prior Art [0005] Stents are widely used for numerous applications where the stent is placed in the lumen of a patient and expanded. Such stents may be used in coronary or other vasculature, as well as other body lumens. [0006] Commonly, stents are cylindrical members. The stents expand from reduced diameters to enlarged diameters. Frequently, such stents are placed on a balloon catheter with the stent in the reduced-diameter state. So placed, the stent is advanced on the catheter to a placement site. At the site, the balloon is inflated to expand the stent to the enlarged diameter. The balloon is deflated and removed, leaving the enlarged diameter stent in place. So used, such stents are used to expand occluded sites within a patient's vasculature or other lumen. [0007] Examples of prior art stents are numerous. For example, U.S. Pat. No. 5,449,373 to Pinchasik et al. teaches a stent with at least two rigid segments joined by a flexible connector. U.S. Pat. No. 5,695,516 to Fischell teaches a stent with a cell having a butterfly shape when the stent is in a reduced-diameter state. Upon expansion of the stent, the cell assumes a hexagonal shape. [0008] In stent design, it is desirable for the stent to be flexible along its longitudinal axis to permit passage of the stent through arcuate segments of a patient's vasculature or other body lumen. Preferably, the stent will have at most minimal longitudinal shrinkage when expanded and will resist compressive forces once expanded. III. SUMMARY OF THE INVENTION [0009] The present disclosure relates to a stent including a stent body having a stent axis. The stent body includes structural members that define openings through the stent body. The structural members are provided with regions having different widths. The relative sizes of the widths are selected to control the length of the stent body as the stent body is radially expanded from an un-deployed orientation to a deployed orientation. In one embodiment, the regions having different widths are provided by tapering the widths of selected segments of the structural member. In a preferred embodiment, the relative sizes of the widths are selected to minimize or eliminate length changes as the stent body is expanded from the un-deployed orientation to the expanded orientation. IV. BRIEF DESCRIPTION OF THE DRAWINGS [0010] FIG. 1 is a perspective view of a first embodiment of a stent according to the present invention shown in a rest diameter state and showing a plurality of stent cells each having a major axis perpendicular to an axis of the stent; [0011] FIG. 2 is a plan view of the stent of FIG. 1 as it would appear if it were longitudinally split and laid out flat; [0012] FIG. 3 is the view of FIG. 2 following expansion of the stent to an enlarged diameter; [0013] FIG. 4 is a view taken along line 4-4 in FIG. 2; [0014] FIG. 5 is a view taken along line 5-5 in FIG. 2; [0015] FIG. 6 is an enlarged view of a portion of FIG. 2 illustrating a cell structure with material of the stent surrounding adjacent cells shown in phantom lines; [0016] FIG. 7 is the view of FIG. 2 showing an alternative embodiment of the present invention with a cell having five peaks per longitudinal segment; [0017] FIG. 8 is the view of FIG. 2 showing an alternative embodiment of the present invention with a major axis of the cell being parallel to an axis of the stent; and [0018] FIG. 9 is the view of FIG. 8 following expansion of the stent to an enlarged diameter; [0019] FIG. 10 is a plan view of another stent as it would appear if it were longitudinally split and laid out flat; [0020] FIG. 11 is an enlarged view of a portion of the stent of FIG. 10; and Continue reading about Stent with dual support structure... Full patent description for Stent with dual support structure Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Stent with dual support structure patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. Start now! - Receive info on patent apps like Stent with dual support structure or other areas of interest. ### Previous Patent Application: Intraluminal stent delivery system, and method of treating a vacaular condition Next Patent Application: Heart valve delivery system with valve catheter Industry Class: Prosthesis (i.e., artificial body members), parts thereof, or aids and accessories therefor ### FreshPatents.com Support Thank you for viewing the Stent with dual support structure patent info. 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