Balloon-expandable, crush-resistant locking stent and method of loading the same
First Claim
1. An intraluminal, crush resistant stent for implantation in a body lumen, comprising:
- at least one resilient, zig-zag shaped strut curved to form a hoop, wherein each zig-zag has an amplitude that varies as the strut is stretched or relaxed;
a base section disposed on the hoop having an opening for receiving the strut therethrough to close the hoop, wherein the opening has a dimension sufficiently large to accommodate the amplitude entirely when the strut is stretched whereby the curved strut passes through the base section and stretching the strut minimizes the amplitude to pass through the opening, which stretching defines a diameter of the hoop.
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Accused Products
Abstract
An intraluminal, crush resistant stent for implantation in a body lumen is disclosed. The crush resistant stent is made from a base section having a plurality of resilient, parallel, coplanar struts having a zig-zag configuration extending therefrom wherein the zig-zag struts are curved and pass through corresponding slots in the base section to form a continuous, cylindrical hoop. Each zig-zag strut has an amplitude that decreases when the zig-zag strut is placed under tension and an amplitude that increases when the zig-zag strut is unstressed or is placed under compression. Accordingly, each zig-zag strut can be pulled through the respective slot in the base section, but under compression the zig-zag struts assume the larger amplitude and cannot pass through the corresponding slot thereby maintaining the diameter of the stent constant.
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Citations
12 Claims
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1. An intraluminal, crush resistant stent for implantation in a body lumen, comprising:
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at least one resilient, zig-zag shaped strut curved to form a hoop, wherein each zig-zag has an amplitude that varies as the strut is stretched or relaxed; a base section disposed on the hoop having an opening for receiving the strut therethrough to close the hoop, wherein the opening has a dimension sufficiently large to accommodate the amplitude entirely when the strut is stretched whereby the curved strut passes through the base section and stretching the strut minimizes the amplitude to pass through the opening, which stretching defines a diameter of the hoop. - View Dependent Claims (2, 3)
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4. An intraluminal, crush resistant stent for implantation in a body lumen, comprising:
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at least one resilient, zig-zag shaped strut curved to form a hoop, wherein each zig-zag has an amplitude that decreases or increases as the strut is stretched or relaxed, respectively; a base section disposed on the hoop having an opening sized sufficiently large to accommodate the amplitude entirely as defined by the zig-zag strut when it is stretched and passed therethrough. - View Dependent Claims (5, 6, 7)
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8. An intraluminal, crush resistant stent for implantation in a body lumen, comprising:
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at least one resilient, zig-zag waveform strut having a proximal end and a free distal end, wherein the strut is curved to form a hoop, and wherein each zig-zag waveform has an amplitude that decreases or increases as the strut is stretched or relaxed, respectively; a base section extending from the proximal end, having at least one opening for passing the distal end of the strut therethrough to close the hoop, wherein the opening has an interior dimension that simultaneously engages adjacent maximum and minimum peak amplitudes of the waveform when the strut is stretched. - View Dependent Claims (9, 10, 11, 12)
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Specification