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Multi-pivot thrombectomy device

A pivotal and segmental technology, applied in the field of multi-pivot thrombectomy devices, can solve problems such as tissue necrosis

Active Publication Date: 2017-10-24
COVIDIEN LP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In smaller blood vessels, blood flow may be completely cut off, causing the tissue supplied by the vessel to die

Method used

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  • Multi-pivot thrombectomy device
  • Multi-pivot thrombectomy device
  • Multi-pivot thrombectomy device

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Embodiment Construction

[0029] In the following detailed description, numerous specific details are given in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. In addition, well-known structures and techniques have not been shown in detail so as not to obscure the present invention.

[0030] Although some of the embodiments described herein relate specifically to vascular interventional devices having two segments, the features described can generally be extended to devices having two or more segments.

[0031] Vascular interventional device

[0032] Figure 1-3 An exemplary embodiment of a vascular access device 50 is shown that may be used to retrieve vascular debris (eg, thrombus) that can obstruct the normal flow of blood within the vasculature. like figure 1 As shown, the device 50 includes two segments (a proximal segment 52 and a dista...

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Abstract

The present invention relates to devices for capturing and extracting vascular debris. The device comprises at least two segments radially expandable from a contracted state to an expanded state, each of the at least two segments having (a) a waist containing the radially largest area of ​​the segment and (b) two longitudinal ends; at least one intermediate portion, each of which includes a pivot connecting adjacent segments, each pivot having a diameter smaller than the waist diameter; attached to the at least two the most proximal side of a segment and is configured to position the tethers of the at least two segments; wherein each of the at least two segments includes at least two longitudinally extending from the proximal end to the distal end of the segment struts, the at least two struts tapering radially inwardly from the waist toward the longitudinal axis of the device as the at least two struts approach an adjacent intermediate portion.

Description

Background technique [0001] The presence of vascular debris (eg, thrombus, embolus) in the vasculature can cause a number of serious health problems. Thrombi are stationary blood clots that are usually found along the walls of blood vessels and can cause blockage of the vessels. Thrombi are often formed in the body as the end product of the coagulation step in hemostasis. In relatively thick blood vessels, a clot usually reduces blood flow through that vessel. In smaller blood vessels, blood flow may be completely cut off, causing the tissue supplied by the vessel to die. A dislodged thrombus is often called an "embolus." Vascular blockage, or ischemia, refers to insufficient blood supply to an organ, usually as a result of a blocked blood vessel. Symptoms of blocked vessels can include chest pain, blindness, and occasionally death. Thrombectomy is a surgical procedure that involves removing a thrombus from within a patient's vasculature. Contents of the invention [0...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/221
CPCA61B17/12109A61B17/221A61B2017/2212A61B2017/22034A61F2/0108A61F2/012A61B2017/00336A61B2017/00778
Inventor M·莫莱
Owner COVIDIEN LP