Ventricular assist and support device

• US 7,878,966 B2
• Filed: 02/04/2005
• Issued: 02/01/2011
• Est. Priority Date: 02/04/2005
• Status: Expired due to Fees

• Current Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Original Assignee: Boston Scientific Scimed (Boston Scientific Corporation)
• Inventors: Jenson, Mark L.
• Primary Examiner(s): KAHELIN, MICHAEL WILLIAM
• Application Number:
  US11/051,113
• Publication Number:
  US 20060178550A1
• Time in Patent Office: 2,188 Days
• Field of Search: 600/16, 600/17, 623/3.1
• US Class Current: 600/16
• CPC Class Codes: A61M 2205/0283 Electro-active polymers [EAP]
• CPC Class Codes: A61M 60/135 inside a blood vessel, e.g. using grafting
• CPC Class Codes: A61M 60/148 in line with a blood vessel using resection or like techniques, e.g. permanent endovascular heart assist devices
• CPC Class Codes: A61M 60/178 drawing blood from a ventricle and returning the blood to the arterial system via a cannula external to the ventricle, e.g. left or right ventricular assist devices
• CPC Class Codes: A61M 60/187 mechanically acting upon the inside of the patient's native heart, e.g. contractile structures placed inside the heart
• CPC Class Codes: A61M 60/191 mechanically acting upon the outside of the patient's native heart, e.g. compressive structures placed around the heart
• CPC Class Codes: A61M 60/289 Devices for mechanical circulatory actuation assisting the residual heart function by means mechanically acting upon the patient's native heart or blood vessel structure, e.g. direct cardiac compression [DCC] devices
• CPC Class Codes: A61M 60/427 the force acting on the blood contacting member being hydraulic or pneumatic
• CPC Class Codes: A61M 60/457 the force acting on the blood contacting member being magnetic
• CPC Class Codes: A61M 60/468 the force acting on the actuation means being hydraulic or pneumatic
• CPC Class Codes: A61M 60/47 the force acting on the actuation means being mechanical, e.g. mechanically driven members clamping a blood vessel
• CPC Class Codes: A61M 60/484 generated by electro-thermomechanical actuators, e.g. shape memory alloy actuators
• CPC Class Codes: A61M 60/486 generated by electro-active actuators, e.g. using electro-active polymers or piezoelectric elements
• CPC Class Codes: A61M 60/489 the force acting on the actuation means being magnetic
• CPC Class Codes: A61M 60/515 Regulation using real-time patient data
• CPC Class Codes: A61M 60/538 Regulation using real-time blood pump operational parameter data, e.g. motor current

Abstract

A ventricular assist device to provide cardiac assistance to a damaged ventricle chamber. The ventricular assist device is formed of an ventricle body which is anchorable to spaced ventricle wall portions to provide cardiac assistance. Operation of the ventricular assist device is timed or synchronized with the operating phases of the ventricle chamber. The ventricular assist device can be intravascularly deployed to provide a less invasive treatment procedure and can be adapted to provide static support if active assistance is no longer required.

Claims

1. A ventricular device comprising:

a first ventricle anchor and a second ventricle anchor anchorable to opposed ventricle wall portions; and

a ventricle body positioned entirely between the first ventricle anchor and the second ventricle anchor and extending between and terminating at the first ventricle anchor and the second ventricle anchor where the ventricle body includes a first body portion of fixed length extending from the first ventricle anchor and a second body portion of fixed length extending from the second ventricle anchor that is positioned in an extended configuration partially within a lumen of the first body portion, wherein a portion of the first body portion and a portion of the second body portion each are configured to extend through one of the opposed ventricle wall portions, and wherein the first body portion and the second body portion are slideable relative to one another to reversibly expand and collapse between a first length dimension and a second smaller dimension to provide cardiac assistance.

2. The ventricular device of claim 1 wherein the ventricle body includes the first body portion coupled to the first ventricle anchor of the opposed spaced ventricle anchors and the second body portion slidably coupled to the first body portion and coupled to the second ventricle anchor of the opposed spaced ventricle anchors to allow the ventricle body to reversibly expand and collapse between the first length dimension and the second smaller dimension.

3. The ventricular device of claim 2 and further comprising a cable coupled to the second body portion to slidably adjust the second body portion relative to the first body portion to reversibly expand and collapse the ventricle body between the first length dimension and the second smaller dimension.

4. The ventricular device of claim 1 and further comprising at least one ventricle plate coupled to an end portion of the ventricle body.

5. The ventricular device of claim 4 including a plurality of ventricle plates including a first ventricle plate coupled to one end portion of the ventricle body and a second ventricle plate coupled to an opposed end portion of the Ventricle body.

6. The ventricular device of claim 4 wherein the ventricle plate is generally “

U”

shaped and includes a first end coupled to one end portion of the Ventricle body and a second end coupled to an opposed end portion of the Ventricle body.

7. The ventricular device of claim 1 and further comprising an actuator assembly coupled to the Ventricle body to reversibly expand and collapse the ventricle body between the first length dimension and the second smaller dimension.