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Transcatheter stented prosthesis tensioning and locking systems and devices

A prosthesis and stent frame technology, applied in the field of transcatheter prosthesis tensioning and locking systems and devices with stents, can solve problems such as valves not opening properly, valves not closing properly, and incompetence

Active Publication Date: 2019-12-27
MEDTRONIC INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Possible problems with the valve include: stenosis, where the valve does not open properly; and / or incompetence or regurgitation, where the valve does not close properly

Method used

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  • Transcatheter stented prosthesis tensioning and locking systems and devices
  • Transcatheter stented prosthesis tensioning and locking systems and devices
  • Transcatheter stented prosthesis tensioning and locking systems and devices

Examples

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Embodiment Construction

[0074] Specific embodiments of the present application are now described with reference to the drawings, wherein like reference numerals indicate identical or functionally similar elements. The terms "distal" and "proximal" are used in the description below with respect to position or orientation relative to the treating clinician. "Distal" or "distally" is a location or in a direction away from the clinician. "Proximal" and "proximally" are a position near or in a direction towards the clinician.

[0075] As described below, some aspects of the present disclosure relate to delivery devices or systems that utilize one or more tension members to compress and retain a stented prosthesis to the delivery device during transcatheter delivery to a target site . As background information, in Figure 1-3 The general components of one non-limiting example of a delivery device 10 for use with some aspects of the present disclosure are shown in . The delivery device 10 is arranged an...

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Abstract

The disclosure relates to transcatheter stented prosthesis delivery devices including transition elements that route, constrain, support and reduce damage to tension member wear as tension in the tension members is varied to adjust the compression of a stented prosthesis loaded onto the delivery device. Various disclosed tension elements include inserts, edge treatments and guides proximate a distal portion of the delivery device upon which the stented prosthesis is loaded. In some embodiments, the transition feature is positioned proximate a location where at least one tension member transitions from a first orientation that is not parallel to the distal portion to a second orientation that is generally parallel to the distal portion. Further embodiments disclose configurations and methods of selectively locking and unlocking a longitudinal and / or rotational position of the stent frame with respect to the distal portion of the delivery device.

Description

[0001] Cross References to Related Applications [0002] This non-provisional patent application claims the benefit of the filing date of U.S. Provisional Patent Application Serial No. 62 / 490,896, filed April 27, 2017, the entire teachings of which are incorporated herein by reference. Background technique [0003] The present disclosure relates to transcatheter stented prosthesis delivery devices or systems that utilize one or more elongated tension members to compressively retain a stented prosthesis to a delivery device. [0004] The human heart consists of four heart valves that determine the path of blood flow through the heart: the mitral, tricuspid, aortic, and pulmonary valves. The mitral and tricuspid valves are atrioventricular valves located between the atria and ventricles, while the aortic and pulmonary valves are semilunar valves located in the arteries leaving the heart. Ideally, the native leaflets of a heart valve move away from each other when the valve is i...

Claims

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Application Information

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IPC IPC(8): A61F2/24
CPCA61F2002/9511A61F2002/9665A61F2/95A61F2/962A61F2/2439A61F2210/0014A61F2/2436A61F2/9522A61F2/2418
Inventor M·格劳斯P·格里芬P·罗斯斯塔J·桑德斯特伦B·沃恩S·蒙哥马利A·麦吉恩
Owner MEDTRONIC INC