Impeller for blood pump
AssigneeMagenta Medical Ltd.
InventorsEhud Schwammenthal, Yosi Tuval, Daniel Glozman
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Abstract
Apparatus and methods are described including an impeller for use in a blood pump. An impeller frame includes proximal and distal end portions and at least one helical elongate element that winds from the proximal end portion to the distal end portion. A material is coupled to the helical elongate element, such that the helical elongate element with the material coupled thereto defines a blade of the impeller. A mediator is coupled to the helical elongate element. The helical elongate element has a first stiffness, the material has a lower stiffness than the first stiffness, and the mediator is configured to enhance bonding between the helical elongate element and the material. Other applications are also described.
Claims10
Apparatus for use in a blood pump, comprising:
- an impeller, comprising:
- an impeller frame that comprises proximal and distal end portions and at least one helical elongate element that winds from the proximal end portion to the distal end portion;
- a material that is coupled to the at least one helical elongate element, such that the at least one helical elongate element with the material coupled thereto defines a blade of the impeller;
- and
- a mediator coupled to the at least one helical elongate element,
- wherein the at least one helical elongate element has a first stiffness, the material has a lower stiffness than the first stiffness, and the mediator is configured to enhance bonding between the at least one helical elongate element and the material,
- wherein the mediator is configured to enhance bonding between the at least one helical elongate element and the material in a manner selected from the group consisting of:
- at least partially by increasing a surface area with which the material comes into contact, and at least partially by providing a surface with which the material comes into contact, that is more porous that that of the helical elongate element.
Dependencies are inferred from the claim text.