Ventricular function assisting devices and methods of use thereof
AssigneeCorassist Cardiovascular Ltd.
InventorsRemo Eyal Almog, Amit Tubishevitz
Life of this patent
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Abstract
Devices and methods are provided for assisting in the ventricular function of a treated heart, and tools for delivering and attaching elements of said devices to the wall of the heart. In general the devices are designed to assist in the ventricular function of the heart by utilizing elastic, and/or magnetic, elements designed to apply radially and/or tangentially directed forces over the wall of the heart, and/or alter the pressure conditions inside ventricle(s) of the heart. Embodiments may utilize restrictive elements which may optionally be attached over the heart during the implantation procedure, or at a later time, by changing the mode of operation of an implanted device.
Claims16
A ventricular function assisting apparatus comprising anchoring means capable of being attached to the wall of the heart, elastic elements capable of being attached to said anchoring means, at least two restrictive elements adapted to encircle a perimeter of the heart, said restrictive elements are capable of being changed between an engaging state and a non-engaging state over the heart, and elongated flexible elements capable of being attached between said restrictive elements via their extremities while being movably engaged in said anchoring means along portions of their lengths,
- wherein said elastic elements are capable of being elastically deformed and store potential energy in them during the systolic phase and release said stored energy during the diastolic phase and thereby apply radially outward and tangentially directed forces over the wall of the heart,
- wherein said ventricular function assisting device is capable of being selectively changed between two modes of operation by changing the state of said restrictive means between their non-engaging and engaging states over the heart, and
- wherein the elastic elements are made in a “V”-like shape having torsion loop(s) at their apexes and two side arms attached at one end to said torsion loop(s), and wherein each of said side arms comprises attachment components at their free ends capable of being received and held in the anchoring means.
A ventricular function assisting apparatus comprising anchoring means capable of being attached to the wall of the heart, elastic elements capable of being attached to said anchoring means, at least two restrictive elements adapted to encircle a perimeter of the heart, said restrictive elements are capable of being changed between an engaging state and a non-engaging state over the heart, and elongated flexible elements capable of being attached between said restrictive elements via their extremities while being movably engaged in said anchoring means along portions of their lengths,
- wherein said elastic elements are capable of being elastically deformed and store potential energy in them during the systolic phase and release said stored energy during the diastolic phase and thereby apply radially outward and tangentially directed forces over the wall of the heart,
- and wherein said ventricular function assisting device is capable of being selectively changed between two modes of operation by changing the state of said restrictive means between their non-engaging and engaging states over the heart,
- wherein the anchoring means are made from a turned wire having a bottom and top portions, wherein said bottom portion is formed in a helical shape adapted to be screwed into a soft tissue and its top portion comprises one or more retaining parts configured to receive the attachment components of the elastic elements,
- wherein the retaining parts are made from a curved wire configured to receive and hold the attachment components of the elastic elements while allowing non-interlocking passage of the elongated flexible elements through it.
Dependencies are inferred from the claim text.