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Medical device delivery system including support member

A technology of supporting member and medical device, which is applied in the direction of human tubular structure device, stent, medical science, etc., can solve the problems of blood vessel wall occlusion and the like

Active Publication Date: 2021-10-08
MEDTRONIC VASCULAR INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some instances, blood vessels treated in this way may become reoccluded due to reformation of plaque blockages or due to weakening of the vessel wall

Method used

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  • Medical device delivery system including support member
  • Medical device delivery system including support member
  • Medical device delivery system including support member

Examples

Experimental program
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Embodiment Construction

[0112] Healthy blood vessels within the body's vasculature contain lumens that are sized to provide adequate transport of blood to and from the various tissues of the body. Various lesions of the vasculature may cause stenosis or narrowing of the vascular lumen. For example, atherosclerosis occurs when the walls of arteries thicken due to the accumulation of cholesterol-based plaque, cellular debris, and / or abnormal growth of arterial wall cells. The resulting restriction of blood flow through the narrowed lumen of the affected artery may lead to ischemia of the tissue supplied by the artery. Options for restoring blood flow in blood vessels affected by conditions such as atherosclerosis include removal of occlusive material from the vessel lumen, and use of an inflatable balloon (e.g., balloon angioplasty) to compress Occlusive material and dilation of the lumen.

[0113] In addition to the balloon angioplasty procedure, which improves blood flow through the treated vessel,...

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PUM

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Abstract

In some examples, a catheter defines a longitudinal axis and includes an inner member, a retaining member, and a support member. The inner member has an outer wall, and a portion of the inner member has a first stiffness. The retention member defines a pocket configured to receive a connection member of an expandable medical device. The holding member has a second stiffness different from the first stiffness. The support member extends distally from the retaining member. In some examples, the support member is configured to be received radially within the expandable medical device when the connecting member is received within the pocket. The support member is configured to provide a gradual transition between a first stiffness of the inner member and a second stiffness of the retaining member.

Description

technical field [0001] The present disclosure generally relates to the delivery of medical devices to a treatment site in a patient. Background technique [0002] Blood vessels can be treated to reduce or eliminate blockages caused by atherosclerosis, hardening of the arteries, or other forms of vascular disease. Interventional therapy may include removing or widening the blockage through a procedure such as angioplasty, which may include inflation of a balloon to dilate the narrowed lumen within the affected vessel. In some examples, blood vessels treated in this manner may become reoccluded due to reformation of plaque blockages or due to weakening of the vessel wall. [0003] To help maintain the patency of blood vessels that have been treated to reduce or eliminate blockages, stents and other expandable medical devices have been developed. During some medical procedures, an implant delivery system including a stent loaded onto a catheter and contained within a sheath m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/07A61M25/01
CPCA61F2/07A61M25/0102A61M25/0108A61M25/0125A61M25/0127A61M2025/0188A61M2025/0183A61F2/966A61F2/915A61F2002/9665A61F2250/0018A61F2002/91575
Inventor S·菲利普斯
Owner MEDTRONIC VASCULAR INC