Prosthetic cardiac valve formed from pericardium material and methods of making same

a technology of pericardium and prosthesis, which is applied in the direction of prosthesis, blood vessels, cell components, etc., can solve the problems of stenosis and insufficiency, all the abnormal anatomy and function of the heart valve in a particular patient, and the need for emergency surgery, so as to prevent or minimize the leakage of the valve, prevent undesired abrasion, and facilitate the percutaneous insertion into the heart of a patient.

Active Publication Date: 2007-10-04
MEDTRONIC INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The technical effect of this patents relates to improving implantation techniques for artificially controlling blood flow through an occlusion device called a valvuloplasty catheter used during surgery. By wrapping up certain pieces of Periocellum like Porcellochia around it, these bags form curved sections that help guide fluid towards different parts of the body's circulatory system. These Curved Sectionals provide protection against damage from external objects when inserted inside the chest cavity without causing blockages due to their flexibility.

Problems solved by technology

This patents describes various technical solutions aimed towards creating valves suitable for replacing damaged hearts during medical therapy. However current methods still face challenges including difficulty obtaining appropriate valving systems due to their complexity and limitations associated with existing techniques like artificial valves made up entirely of soft material. Additionally, current approaches involving pacing tend to cause complications when delivering them to newborn individuals requiring temporary support after transplant operations.

Method used

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  • Prosthetic cardiac valve formed from pericardium material and methods of making same
  • Prosthetic cardiac valve formed from pericardium material and methods of making same
  • Prosthetic cardiac valve formed from pericardium material and methods of making same

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Embodiment Construction

[0037]Referring now to the Figures, wherein the components are labeled with like numerals throughout the several Figures, and initially to FIG. 1, an intermediate configuration for preparing an exemplary pericardial valve in conjunction with the methods and valves of the present invention is illustrated. The pericardial valves of the invention can be used for replacement of pulmonary valves, aortic valves, mitral valves, or tricuspid valves, in accordance with the methods of the invention described herein. Alternatively, the valves of the invention can be used to replace a failed bioprosthesis, such as in the area of an aortic valve or mitral valve, for example. The shape, size, and configuration of the outer tubular portion of the pericardial valve can specifically be designed and chosen for the type of valve that is being produced. The valves of the invention can include stented or stentless valves, but in either case, the valves are compressible to a reduced diameter during the impl

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Abstract

A prosthetic stented heart valve which includes a compressible and expandable stent structure having first and second opposite ends, an expanded outer periphery, and a compressed outer periphery that is at least slightly smaller than the expanded outer periphery when subjected to an external radial force. The valve further includes a valve segment comprising a dual-layer sheet formed into a generally tubular shape having at least one longitudinally extending seam, and a plurality of leaflets formed by attachment of an outer layer of the dual-layer sheet to an inner layer of the dual-layer sheet in a leaflet defining pattern. The valve segment is at least partially positioned within the stent structure. The valve may further include at least one opening in the outer layer of the dual-layer sheet that is spaced from both the first and second ends of the stent structure.

Description

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Claims

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Application Information

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Owner MEDTRONIC INC
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