DEVICES AND METHODS FOR DELIVERING AN ENDOCARDIAL DEVICE
First Claim
1. A delivery system for delivering a ventricular partitioning device into a patient'"'"'s ventricle and deploying the partitioning device to reduce the effective volume of the ventricle by expanding the partitioning device from a collapsed delivery configuration into an expanded deployed configuration, the system comprising:
- an elongate guide catheter having a proximal end and a distal end;
an expansion member near the distal end of the guide catheter and configured to expand a plurality of struts of the partitioning device by applying pressure to the collapsed partitioning device to open the partitioning device and secure it in the ventricle; and
a coupling element distal to the expansion member and configured to deployably secure to a hub of the partitioning device to retain the expansion member at least partially surrounded by the collapsed partitioning device prior to deployment.
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Accused Products
Abstract
Described herein are systems for partitioning a ventricle of a heart. The systems may include a partitioning device or implant, and an applicator for inserting, repositioning and/or removing the partitioning device. The implant may support the ventricle wall and may reduce the volume of the ventricle. In particular, described herein are systems for delivering and deploying a partitioning device into a ventricle. The delivery system may include a catheter having a distal coupling element for coupling to a partitioning device in a collapsed configuration; the catheter may also have an expansion member for applying force to the partitioning device to fully expand it into a deployed configuration and to secure or seal it against the ventricle wall.
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Citations
44 Claims
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1. A delivery system for delivering a ventricular partitioning device into a patient'"'"'s ventricle and deploying the partitioning device to reduce the effective volume of the ventricle by expanding the partitioning device from a collapsed delivery configuration into an expanded deployed configuration, the system comprising:
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an elongate guide catheter having a proximal end and a distal end; an expansion member near the distal end of the guide catheter and configured to expand a plurality of struts of the partitioning device by applying pressure to the collapsed partitioning device to open the partitioning device and secure it in the ventricle; and a coupling element distal to the expansion member and configured to deployably secure to a hub of the partitioning device to retain the expansion member at least partially surrounded by the collapsed partitioning device prior to deployment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A delivery system for delivering a ventricular partitioning device into a patient'"'"'s ventricle and deploying the partitioning device to reduce the effective volume of the ventricle by expanding the partitioning device from a collapsed delivery configuration into an expanded deployed configuration, the system comprising:
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an elongate guide catheter having a proximal end and a distal end; an expansion member near the distal end of the guide catheter and configured to expand the partitioning device by applying pressure to open the collapsed partitioning device and secure it in the ventricle; a coupling element distal to the expansion member and configured to deployably secure to a hub of the partitioning device to retain the expansion member at least partially surrounded by the collapsed partitioning device prior to deployment; an expansion control at the proximal end of the elongate guide catheter for expanding the expansion member to apply pressure and expand the partitioning device; and a deployment control for releasing the partitioning device from the guide catheter by separating the coupling element from the hub of the partitioning device. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A delivery system for delivering an umbrella-shaped ventricular partitioning device into a patient'"'"'s ventricle and mechanically deploying the partitioning device to reduce the effective volume of the ventricle by expanding the partitioning device from a collapsed configuration into an expanded configuration, the system comprising:
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an elongate guide catheter having a proximal end and a distal end; a mechanical expander near the distal end of the guide catheter having a plurality of arms configured to extend outwards when operated to apply pressure to the partitioning device to open the partitioning device; and a coupling element distal to the expansion member and configured to deployably secure to a central hub of the partitioning device and to retain the expansion member at least partially surrounded by the collapsed partitioning device prior to deployment.
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32. A delivery system for delivering an umbrella-shaped ventricular partitioning device into a patient'"'"'s ventricle and deploying the partitioning device to reduce the effective volume of the ventricle by expanding the partitioning device from a collapsed configuration into an expanded configuration, the system comprising:
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an elongate guide catheter having a proximal end and a distal end; a mechanical expander near the distal end of the guide catheter comprising a plurality of arms joined at their proximal and distal ends and configured to expand outwards when the proximal and distal ends are brought closer together, the mechanical expander configured to apply pressure the partitioning device to open the partitioning device and secure it in the ventricle; and a coupling element distal to the expansion member and configured to deployably secure to a hub of the partitioning device and to retain the expansion member at least partially surrounded by the collapsed partitioning device prior to deployment.
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33. A delivery system for delivering an umbrella-shaped ventricular partitioning device into a patient'"'"'s ventricle and deploying the partitioning device to reduce the effective volume of the ventricle by expanding the partitioning device from a collapsed configuration into an expanded configuration, the system comprising:
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an elongate guide catheter having a proximal end and a distal end; an inflatable expander near the distal end of the guide catheter configured to extend outwards when inflated to apply pressure to open the partitioning device and to secure the partitioning device in the ventricle; a distal nose spacer distal to the inflatable expander on the guide catheter and configured to space the inflatable expander proximally from a central hub region of the partitioning device; a taper region between the distal nose spacer and the inflatable expander; and a coupling element distal to the expansion member and configured to deployably secure to the central hub of the partitioning device and to retain the expansion member at least partially surrounded by the partitioning device prior to deployment.
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34. A delivery system for delivering an umbrella-shaped ventricular partitioning device into a patient'"'"'s ventricle and mechanically deploying the partitioning device to reduce the effective volume of the ventricle by expanding the partitioning device from a collapsed configuration into an expanded configuration, the system comprising:
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an elongate guide catheter having a proximal end and a distal end; a pressure expander near the distal end of the guide catheter comprising a plurality of openings from a fluid source line extending along the length of the elongate catheter, the plurality of openings positioned near the distal end region of the elongate guide catheter and configured to release fluid and apply pressure to the proximal end region of the partitioning device to expand the partitioning device; and a coupling element distal to the expansion member and configured to deployably secure to a central hub of the partitioning device and to retain the expansion member at least partially surrounded by the partitioning device prior to deployment.
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35. A system for reducing the effective volume of the ventricle by securing a ventricular partitioning device within the ventricle, the system comprising:
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an umbrella-shaped ventricular partitioning device having a central hub, a plurality of struts, and a membrane, wherein the partitioning device has a collapsed delivery configuration and an expanded deployed configuration; and a delivery system comprising; an elongate guide catheter having a proximal end and a distal end; a mechanical expander near the distal end of the guide catheter comprising a plurality of arms joined configured to extend outwards to expand the ventricular partitioning device by applying pressure against the struts to open the ventricular partitioning device; a expansion pullwire coupled to the mechanical expander; and a coupling element distal to the expansion member and configured to deployably secure to the central hub of the partitioning device and to retain the expansion member at least partially surrounded by the collapsed partitioning device prior to deployment. - View Dependent Claims (37, 38, 39, 40, 41, 42, 43, 44)
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36. A method of reducing ventricular volume to treat heart disease, the method comprising:
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positioning an umbrella-shaped, expandable partitioning device having a reinforced membrane in a contracted configuration near the apex of a patients'"'"' ventricle using an elongate guide catheter to which the partitioning device is releasably coupled; expanding an expansion member near the distal end of the guide catheter to apply pressure to the proximal end region of the contracted partitioning device to expand the partitioning device; and releasing a coupling element distal to the expansion member on the guide catheter to deploy the partitioning device.
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Specification