Non-entangling vena cava filter
First Claim
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1. A method of treating a patient, comprising:
- providing an implantable vessel filter including a plurality of legs wherein the plurality of legs comprises a first set of legs coupled proximally to a hub and having a first length, and a second set of legs coupled proximally to the hub and having a second length longer than the first length, each of the second set of legs having a hook at a distal end, anda center-post comprising grooved proximal and distal sections, at least some of the legs having a hook at a distal end, the center-post having a grooved distal section, the plurality of legs extending radially outward from the center-post in a filter expanded configuration;
compressing the legs toward the center-post and positioning each of the hooks in a corresponding groove in the grooved distal section in a filter compressed configuration, wherein compressing the legs toward the center post includes placing the first set of legs in a corresponding groove in the grooved proximal section;
inserting the filter in the filter compressed configuration into a delivery assembly and navigating the filter to a desired location in a body of the patient; and
deploying the filter at the desired location, the filter transitioning from the filter compressed configuration to the filter expanded configuration.
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Abstract
A method of treating a patient includes providing an implantable vessel filter including a plurality of legs and a center-post, inserting the filter into a delivery assembly, and deploying the filter at a desired location in a patient'"'"'s body. One or more of the legs may have a hook at a distal end thereof and the center-post includes a grooved distal section to receive the hooks. The filter legs transition from a compressed configuration to an expanded configuration during deployment.
646 Citations
8 Claims
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1. A method of treating a patient, comprising:
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providing an implantable vessel filter including a plurality of legs wherein the plurality of legs comprises a first set of legs coupled proximally to a hub and having a first length, and a second set of legs coupled proximally to the hub and having a second length longer than the first length, each of the second set of legs having a hook at a distal end, and a center-post comprising grooved proximal and distal sections, at least some of the legs having a hook at a distal end, the center-post having a grooved distal section, the plurality of legs extending radially outward from the center-post in a filter expanded configuration; compressing the legs toward the center-post and positioning each of the hooks in a corresponding groove in the grooved distal section in a filter compressed configuration, wherein compressing the legs toward the center post includes placing the first set of legs in a corresponding groove in the grooved proximal section; inserting the filter in the filter compressed configuration into a delivery assembly and navigating the filter to a desired location in a body of the patient; and deploying the filter at the desired location, the filter transitioning from the filter compressed configuration to the filter expanded configuration. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of treating a patient, comprising:
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providing an implantable vessel filter including a plurality of legs, at least some of the legs having a hook a distal end; an extension distal of the grooved distal section, and a center-post having a grooved distal section, wherein the plurality of legs extending radially outward from the center-post in a filter expanded configuration; compressing the legs toward the center-post and positioning each of the hooks in a corresponding groove in the grooved distal section in a filter compressed configuration; holding the filter via the extension during the compressing; inserting the filter in the filter compressed configuration into a delivery assembly and navigating the filter to a desired location in a body of the patient; and deploying the filter at the desired location, the filter transitioning from the filter compressed configuration to the filter expanded configuration.
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Specification