Prosthetic heart valve for natural blood flow
Assignee4C Medical Technologies, Inc.
InventorsSaravana B. Kumar, Steven D. Kruse, Jason S. Diedering
Life of this patent
Estimating the term…
Abstract
A collapsible and expandable implant for implanting in a heart chamber on a side of a heart. The implant may include an outer section including a curved portion configured to be positioned in the heart chamber. The implant may be sized such that an ellipsoid conforming to the curved portion has a height greater than a length of the heart chamber by a percentage that is within a predetermined range of height percentage values. The implant may be sized such that the ellipsoid has a width greater than a width of the heart chamber by a percentage that is within a predetermined range of width percentage values. The length and width of the heart chamber may be defined in an image of the heart chamber.
Claims126
A method of manufacturing an implant for implantation in a heart chamber in a side of a heart, the method comprising forming a curved portion of the implant such that an ellipsoid conforming to the curved portion has:
- an ellipsoid height that is greater than a length of the heart chamber by a percentage that is within a predetermined range of height percentage values;
- and
- an ellipsoid width that is greater than a width of the heart chamber by a percentage that is within a predetermined range of width percentage values;
- wherein:
- the length and width of the heart chamber are defined in an image of the heart chamber;
- the length extends between:
- a level corresponding to an upper annular surface at a bottom of the heart chamber;
- and
- a point that is:
- on a roof of the heart chamber;
- and
- within 1.5 mm of a highest point on the roof in the image;
- the method further comprises forming an annular ring of the implant, the forming the annular ring comprising the method steps of:
- creating a first graphical model in which the ellipsoid has a first cell structure;
- creating a second graphical model in which the annular ring has a first height and a second cell structure;
- combining the first graphical model and the second graphical model such that the annular ring is positioned at a bottom of the ellipsoid;
- determining that a height of the annular ring is below a threshold value;
- increasing the first height to a second height;
- and
- forming the annular ring such that the annular ring has the second height.
A method of manufacturing an implant for implantation in a heart chamber in a side of a heart, the method comprising forming a curved portion of the implant such that an ellipsoid conforming to the curved portion has:
- an ellipsoid height that is greater than a length of the heart chamber by a percentage that is within a predetermined range of height percentage values;
- and
- an ellipsoid width that is greater than a width of the heart chamber by a percentage that is within a predetermined range of width percentage values;
- wherein:
- the length and width of the heart chamber are defined in an image of the heart chamber;
- the length extends between:
- a level corresponding to an upper annular surface at a bottom of the heart chamber;
- and
- a point that is:
- on a roof of the heart chamber;
- and
- within 1.5 mm of a highest point on the roof in the image;
- and
- the method further comprises:
- selecting a first cell density of the implant when the ellipsoid height is less than a predetermined first value and the ellipsoid width is less than a predetermined second value;
- and
- selecting a second cell density of the implant when the ellipsoid height is greater than the predetermined first value and the ellipsoid width is greater than the predetermined second value.
A method of manufacturing an implant for implantation in a heart chamber in a side of a heart, the method comprising forming a curved portion of the implant such that an ellipsoid conforming to the curved portion has:
- an ellipsoid height that is greater than a length of the heart chamber by a percentage that is within a predetermined range of height percentage values;
- and
- an ellipsoid width that is greater than a width of the heart chamber by a percentage that is within a predetermined range of width percentage values;
- wherein:
- the length and width of the heart chamber are defined in an image of the heart chamber;
- the length extends between:
- a level corresponding to an upper annular surface at a bottom of the heart chamber;
- and
- a point that is:
- on a roof of the heart chamber;
- and
- within 1.5 mm of a highest point on the roof in the image;
- and
- the image includes a computed tomography (CT) scan image.
A method of manufacturing an implant for implantation in a heart chamber in a side of a heart, the method comprising forming a curved portion of the implant such that an ellipsoid conforming to the curved portion has:
- an ellipsoid height that is greater than a length of the heart chamber by a percentage that is within a predetermined range of height percentage values;
- and
- an ellipsoid width that is greater than a width of the heart chamber by a percentage that is within a predetermined range of width percentage values;
- wherein:
- the length and width of the heart chamber are defined in an image of the heart chamber;
- the length extends between:
- a level corresponding to an upper annular surface at a bottom of the heart chamber;
- and
- a point that is:
- on a roof of the heart chamber;
- and
- within 1.5 mm of a highest point on the roof in the image;
- the image has a scale that relates a dimension of the image to a corresponding dimension of the heart chamber;
- and
- the length and width are measured on the image.
A method of manufacturing an implant for implantation in a heart chamber in a side of a heart, the method comprising forming a curved portion of the implant such that an ellipsoid conforming to the curved portion has:
- an ellipsoid height that is greater than a length of the heart chamber by a percentage that is within a predetermined range of height percentage values;
- and
- an ellipsoid width that is greater than a width of the heart chamber by a percentage that is within a predetermined range of width percentage values;
- wherein:
- the length and width of the heart chamber are defined in an image of the heart chamber;
- the length extends between:
- a level corresponding to an upper annular surface at a bottom of the heart chamber;
- and
- a point that is:
- on a roof of the heart chamber;
- and
- within 1.5 mm of a highest point on the roof in the image;
- the level is a three-dimensional approximation of the upper annular surface;
- the image defines a cross-sectional plane;
- an intersection of the level with the plane defines a segment;
- the length extends between:
- a midpoint of the segment;
- and
- the point;
- an intersection of the heart chamber with the plane defines a contour;
- the point and the highest point are on the contour;
- and
- an acute angle is defined between:
- a line extending from the midpoint to the highest point;
- and
- a vertical axis extending from the midpoint to a top of the contour vertically above the midpoint.
Dependencies are inferred from the claim text.