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Chronic total occlusion crossing devices and methods

a technology of crossing device and vasculature, which is applied in the field ofchronic total occlusion, can solve the problems of increased operator and patient radiation exposure, severe impact of ctos on patient health and lifestyle, and prolonged procedure time, and achieve the effect of preventing the width of the loop

Active Publication Date: 2018-10-04
MUSTAPHA JIHAD A
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The looped crossing wire effectively interrogates and erodes CTOs, reducing the risk of vessel rupture and improving the reliability of crossing lesions in smaller vasculature, such as those below the knee, while maintaining procedural safety and efficacy.

Problems solved by technology

Vascular occlusions and, especially, CTOs can have a severe impact on a patient's health and lifestyle.
Crossing these lesions may be challenging and may lead to prolonged procedure time, increased operator and patient radiation exposure, high contrast load, and peri-procedural complications including perforation, dissection, loss of collaterals, and creation of an arteriovenous fistula.
Revascularization of CTOs is usually hindered by failure to cross the lesion due to a variety of factors, so attempts to revascularize heavily calcified CTOs still can meet with failure.
Existing CTO crossing devices still have a higher failure rate than desirable.
Further, existing devices are too large to use in the vasculature below the waist.

Method used

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  • Chronic total occlusion crossing devices and methods
  • Chronic total occlusion crossing devices and methods
  • Chronic total occlusion crossing devices and methods

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Embodiment Construction

[0096]Some embodiments of the current invention are discussed in detail below. In describing embodiments, specific terminology is employed for the sake of clarity. However, the invention is not intended to be limited to the specific terminology so selected. A person skilled in the relevant art will recognize that other equivalent components can be employed and other methods developed without departing from the broad concepts of the current invention. All references cited anywhere in this specification, including the Background and Detailed Description sections, are incorporated by reference as if each had been individually incorporated.

[0097]The devices and methods contemplated are configured to reliably and effectively cross lesions in the vasculature, especially, lesions of the type where the accumulation of plaque is so severe that it results in a complete or nearly complete blockage of the vessel. The devices and methods in accordance with the principles of the invention are con...

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Abstract

A device for crossing a lesion in a tissue lumen includes a crossing wire configured to pass through a lumen of a catheter, the crossing wire including a loop at a distal end of the crossing wire, the loop having a configuration that prevents a width of the loop from exceeding a width of the tissue lumen, and the loop having a leading portion configured to interrogate the lesion.

Description

[0001]This application claims priority to U.S. Provisional Application No. 62 / 479,646 filed Mar. 31, 2017 and U.S. Provisional Application No. 62 / 500,303 filed May 2, 2017, the entire contents of both of which are hereby incorporated by reference.BACKGROUND1. Technical Field[0002]The field generally relates to crossing lesions in the vasculature, especially those referred to as a chronic total occlusions (CTO), and, more particularly crossing devices and methods utilizing a loop feature.2. Discussion of Related Art[0003]Vascular occlusions and, especially, CTOs can have a severe impact on a patient's health and lifestyle. CTOs are frequently encountered during endovascular interventions. CTOs exist in many patients with symptomatic peripheral arterial disease. In the lower extremities, CTOs are commonly encountered in the superficial femoral artery (SFA). Crossing these lesions may be challenging and may lead to prolonged procedure time, increased operator and patient radiation expo...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61B17/3207A61B17/22A61M25/00
CPCA61B17/320783A61B2017/00867A61M25/0026A61B17/22A61B17/3207A61B17/320725A61B17/320758A61B2017/22094A61B2017/320791A61B2090/3966A61B2017/22042A61M2025/0004
Inventor MUSTAPHA, JIHAD A.
Owner MUSTAPHA JIHAD A