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Prosthetic valve, delivery apparatus and delivery method

A kind of artificial valve, artificial heart valve technology, applied in the field of delivery device, heart valve such as aortic valve, can solve the problem of some risk of displacement

Inactive Publication Date: 2015-10-07
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When a prosthetic valve is implanted in a beating heart, there may be some risk of dislodging

Method used

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  • Prosthetic valve, delivery apparatus and delivery method
  • Prosthetic valve, delivery apparatus and delivery method
  • Prosthetic valve, delivery apparatus and delivery method

Examples

Experimental program
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Embodiment Construction

[0090] refer to figure 1 with figure 2 , shows a delivery catheter 10 for delivering a prosthetic heart valve 12 (eg, a stent-valve) through an artery leading to a heart 14 . For example, the catheter 10 may be advanced through the descending aorta 16, around the aortic arch 18, and through the ascending aorta 20 to the aortic valve location 22 at the outlet of the left ventricle LV of the heart.

[0091] The prosthetic valve 12 is configured to expand from a collapsed state (not shown) suitable for delivery to an expanded state suitable for implantation (eg, figure 1 with figure 2 shown). The valve 12 may include a stent member that supports the valve-shaped structure. In the illustrated embodiment, valve 12 is a self-expanding valve that can be constrained in a collapsed state by one or more sheaths 24 of delivery catheter 10 . When the one or more sheaths 24 are moved out of engagement with the valve 12, the valve 12 is free to self-expand at the implantation site. ...

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Abstract

A delivery catheter for a prosthetic heart valve, the valve expandable from a collapsed condition for delivery to an expanded condition for implantation, the delivery catheter comprising: a holder for engaging the valve in the collapsed state of the valve, the holder configured such that (i) in response to a radial compression force exerted thereon, the holder has a first shape defining an exposed engagement region for engaging at least a portion of the collapsed prosthetic heart valve for restraining axial displacement of the prosthetic valve in at least one axial direction of the catheter, and (ii) in response to removal of the radial compression force upon expansion of the valve, at least a portion of the holder transitions to a second shape.

Description

technical field [0001] The present invention relates to devices for valve replacement, particularly heart valves such as the aortic valve. Furthermore, the invention relates to a delivery device and a method for operating the delivery device. Valve replacement devices may also be referred to as stent-valve or valved stents. Background technique [0002] Traditional methods for aortic valve replacement call for a large incision over the patient's breastbone (sternotomy) or through the chest cavity (thoracotomy) to allow the surgeon access to the patient's heart. Additionally, these methods require arresting the patient's heart and cardiopulmonary bypass (ie, use of a cardiopulmonary bypass machine to oxygenate and circulate the patient's blood). Efforts have been made in recent years to reduce invasiveness through the use of transcatheter procedures, the delivery and implantation of valve replacement devices through catheters that are inserted through small skin incisions, ...

Claims

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Application Information

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IPC IPC(8): A61F2/24A61F2/97
CPCA61F2/2436A61F2/2418A61F2/97A61F2/2427
Inventor F·隆巴迪Y·比阿迪拉J-L·赫弗堤L·曼塔那斯S·迪拉罗耶
Owner SYMETIS
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