摘要:
A prosthetic heart valve includes a valve frame (2), on which a plurality of valve leaflets (8) are fixed, and a fastening area for fastening in a blood vessel, which axially adjoins the valve frame (2). A stabilizing ring (14) is arranged in the fastening area. The stabilizing ring (14) defines a predetermined shape and a predetermined diameter of the fastening area and has at least one predetermined expansion point (22), whereby it is possible to expand the stabilizing ring (14) by an action of radial force on an inner circumference.
摘要:
A prosthetic heart valve includes a valve frame (2), on which a plurality of valve leaflets (8) are fixed, and a fastening area for fastening in a blood vessel, which axially adjoins the valve frame (2). A stabilizing ring (14) is arranged in the fastening area. The stabilizing ring (14) defines a predetermined shape and a predetermined diameter of the fastening area and has at least one predetermined expansion point (22), whereby it is possible to expand the stabilizing ring (14) by an action of radial force on an inner circumference.
摘要:
A heart valve prosthesis has an annular body (2) and with several flap elements (4) which are movably connected to the annular body (2) via joints (10). The joints (10) engage on the flap elements (4) at their ventricular surface (18).
摘要:
The invention relates to a textile vascular prosthesis (1) with a circulatory pleating formed by folds (4), and with an arch-shaped longitudinal flexion (2) extending over at least a partial section and formed by asymmetric shortening gathering of the prosthesis wall by means of at least one longitudinal seam (7) extending along the partial section. The at least one longitudinal seam gathers the prosthesis wall while preserving the accordion-like structure (4) and the compacted state of the pleating (4) in the longitudinal direction.
摘要:
The invention relates to a vessel prosthesis, particularly for the replacement of aorta segments near the heart, in the form of a pleated flexible tube with folds (3), the tube being configured as an arc, and the arc shape being fixed in an extension-resistant manner, in the non-implanted state, by means of extension limiters.
摘要:
In an artificial heart valve for the replacement of an aortic or a mitral valve, including an annular body, which is provided at its outer circumference with means for mounting the artificial valve in place by surgical procedures and which defines in its interior a blood flow passage in which valve flap elements are pivotally supported so as to open or close the blood flow passage depending on their pivot positions, the annular body includes circumferentially spaced projections extending into the flow passage and being provided at their inner ends with pivot joints on which the valve flap elements are pivotally supported.
摘要:
In an artificial heart valve for the replacement of an aortic or a mitral valve, including an annular body, which is provided at its outer circumference with means for mounting the artificial valve in place by surgical procedures and which defines in its interior a blood flow passage in which valve flap elements are pivotally supported so as to open or close the blood flow passage depending on their pivot positions, the annular body includes circumferentially spaced projections extending into the flow passage and being provided at their inner ends with pivot joints on which the valve flap elements are pivotally supported.
摘要:
A heart valve prosthesis includes a downstream first axial end (6) and an upstream second axial end (8) and a stitching ring (10) extending in an arcuate manner for stitching in a blood vessel. The arcuate course of the stitching ring (10) is formed by three arcs (12) and three transition regions (14). At each end of two of the arcs (12) transition into each other. The stitching ring (10) has a movable tab (18) at at least one of the three transition regions (14). The movable tab (18) can be selectively directed toward the first axial end (6) or folded over toward the second axial end (8).
摘要:
A heart valve prosthesis includes a downstream first axial end (6) and an upstream second axial end (8) and a stitching ring (10) extending in an arcuate manner for stitching in a blood vessel. The arcuate course of the stitching ring (10) is formed by three arcs (12) and three transition regions (14). At each end of two of the arcs (12) transition into each other. The stitching ring (10) has a movable tab (18) at at least one of the three transition regions (14). The movable tab (18) can be selectively directed toward the first axial end (6) or folded over toward the second axial end (8).
摘要:
The invention relates to a vessel prosthesis, particularly for the replacement of aorta segments near the heart, in the form of a pleated flexible tube with folds (3), the tube being configured as an arc, and the arc shape being fixed in an extension-resistant manner, in the non-implanted state, by means of extension limiters.