Rigid body aortic blood pump implant
First Claim
Patent Images
1. An implantable aortic blood pump comprising:
- a rigid body configured to be secured to a subject'"'"'s aorta with an inner surface concave in both longitudinal and transverse directions, said body having a wall extending along a long axis and defining an inflation port portion with an inflation aperture therethrough, the aperture in fluid communication with an inner surface of said body and a fluid supply, said body being independent of a brace or a stiffener, said rigid body having a cantilevered deformation of less than 7 percent the length of said long axis in response to a 200gram weight suspended from a front edge of the long axis;
a deflecting membrane secured to said body and deflecting in response to fluid communication to pump blood when the pump is secured to the subject'"'"'s aorta, said deflecting membrane deflecting in excess of 100 million inflation/deflation cycles when secured to the subject'"'"'s aorta.
1 Assignment
0 Petitions
Accused Products
Abstract
An implantable aortic blood pump includes a rigid body having wall extending along a long axis and defining an inflation port portion with an inflation aperture therethrough. The aperture is fluid communication with an inner surface of the body and on a fluid supply, the body is preferably independent of an external brace or an external stiffener, yet still has a cantilevered deformation of less than 8 millimeters in response to a 200 gram weight suspended from a front body edge. A deflecting structure of a membrane deflects in response to fluid pressure so as to pump blood when the pump is secured to a subject aorta.
19 Citations
17 Claims
-
1. An implantable aortic blood pump comprising:
-
a rigid body configured to be secured to a subject'"'"'s aorta with an inner surface concave in both longitudinal and transverse directions, said body having a wall extending along a long axis and defining an inflation port portion with an inflation aperture therethrough, the aperture in fluid communication with an inner surface of said body and a fluid supply, said body being independent of a brace or a stiffener, said rigid body having a cantilevered deformation of less than 7 percent the length of said long axis in response to a 200gram weight suspended from a front edge of the long axis; a deflecting membrane secured to said body and deflecting in response to fluid communication to pump blood when the pump is secured to the subject'"'"'s aorta, said deflecting membrane deflecting in excess of 100 million inflation/deflation cycles when secured to the subject'"'"'s aorta. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. An implantable aortic blood pump comprising:
-
a rigid body configured to be secured to a subject'"'"'s aorta having a wall extending along a long axis and defining an inflation port portion with an inflation aperture therethrough, the aperture in fluid communication with an inner surface of said body and a fluid supply, said body being independent of an external brace or an external stiffener, said rigid body having a cantilevered deformation of less than 7 percent the length of the long axis in response to a 200 gram weight suspended from a front edge of the long axis, said wall defining a top surface and wherein said body has a bead diameter at the bottom edge at least 10% greater in linear dimension than the adjacent wall cross section; a deflecting membrane secured to said body deflecting in response to fluid communication to pump blood when the pump is secured to the subject'"'"'s aorta, said deflecting membrane deflecting in excess of 100 million inflation/deflation cycles when secured to the subject'"'"'s aorta. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
-
Specification