Methods, Devices and Systems for Treating Venous Insufficiency

a technology for venous valves and valve leaflets, applied in the field of medical devices and methods, can solve the problems of varicose veins, skin discoloration, vein distention, etc., and achieve the effect of improving the competency of venous valves and improving the closure or coaptation of valve leaflets

Inactive Publication Date: 2009-10-01
MEDTRONIC VASCULAR INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0007]The present invention provides a method and system for improving the competency of a venous valve wherein a compressor (e.g., a space occupying material or implantable device) is delivered at one or more location(s) adjacent to the venous valve to cause one or both leaflets of the valve to move toward the other, thereby improving closure or coaptation of the valve leaflets.

Problems solved by technology

This can cause distention of the veins (i.e., varicose veins), edema or swelling, pain, skin discoloration and, in severe cases, skin ulcers.
However, when the incompetent venous valves are located in deep veins, other treatment approaches must be considered because the deep veins are generally essential and cannot be removed.

Method used

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  • Methods, Devices and Systems for Treating Venous Insufficiency
  • Methods, Devices and Systems for Treating Venous Insufficiency
  • Methods, Devices and Systems for Treating Venous Insufficiency

Examples

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Embodiment Construction

[0042]The following detailed description and the accompanying drawings are intended to describe some, but not necessarily all, examples or embodiments of the invention. The contents of this detailed description and accompanying drawings do not limit the scope of the invention in any way.

[0043]Referring to the accompanying drawings, FIG. 1 shows various veins of the human leg including the femoral vein FV, great saphenous vein GSV and popliteal vein PV. In the enlarged view of FIG. 1A, it can be appreciated that the femoral vein FV is an example of a deep vein, the great saphenous vein is an example of a superficial vein and smaller perforator veins PRF run between the deep veins and superficial veins.

[0044]FIG. 1B shows a normal venous valve V V in a closed position such that the leaflets L of the venous valve V V meet or coapt with one another, thereby blocking retrograde flow of blood through the venous valve V V.

[0045]FIG. 1C shows a normal venous valve V V in an open position su...

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Abstract

Methods and systems for improving the competency of a venous valve wherein one or more compressor(s) (e.g., space occupying material(s) or implantable device(s)) is/are delivered to one or more location(s) adjacent to a venous valve to compress the venous valve in a manner that causes one or both leaflets of the valve to move toward the other, thereby improving closure or coaptation of the valve leaflets. The compressor(s) may be delivered by an open surgical approach, by a direct percutaneous approach or by a transluminal catheter-based approach.

Description

FIELD OF THE INVENTION[0001]The present invention relates generally to medical devices and methods, and more particularly to devices and methods for treating incompetent venous valves.BACKGROUND[0002]The venous vasculature of the lower extremities includes superficial veins (such as the lesser and greater saphenous veins and their tributaries), deep veins (such as the anterior tibial, posterior tibial, peroneal, popliteal, deep femoral, superficial femoral, and iliac veins) and perforator veins (veins which connect the superficial veins to the deep veins). All veins of the lower extremities have valves which prevent the blood from falling (refluxing) back down the leg and help to keep the venous return blood flowing only in one direction, i.e., toward the heart. Each venous valve consists of two leaflets that move apart from one another as blood flows up the leg toward the heart and, thereafter, move toward one another so that they come into contact (i.e.,coaptation) with each other...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61F2/04
CPCA61B17/12013A61F2/95A61F2/2475A61F2/2445A61B2017/12018A61B2090/3966A61B2090/3925A61B2090/3784A61B17/3478
Inventor PERKINS, D.H.HUYNH, RANYRAFIEE, NASSERTHOMPSON, DUSTIN
Owner MEDTRONIC VASCULAR INC
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