HELICAL THROMBUS REMOVAL DEVICE
First Claim
1. A device for removing thrombus from a body cavity, the device comprising:
- a flexible wire having a proximal end and a distal end;
an elongated shaft having a proximal portion and a distal portion, the proximal portion attached to the distal end of the flexible wire and distally extending therefrom to the distal portion; and
an expandable member formed helically about the elongated shaft, the expandable member being configured to helically close defining a collapsed state for delivery and retrieval of the device, the expandable member being configured to helically open defining an expanded state for removing thrombus from the body cavity, the expandable member having at least one member portion helically extending from the elongated shaft at a predetermined angle defining a proximally faced opening when the member is in the expanded state.
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0 Petitions
Accused Products
Abstract
A device for removing thrombus from a body cavity is disclosed. The device comprises a flexible wire having a proximal end and a distal end. The device further comprises an elongated shaft having a proximal portion and a distal portion. The proximal portion attached to the distal end of the flexible wire and distally extends therefrom to the distal portion. The device further comprises an expandable member formed helically about the elongated shaft. The expandable member is configured to helically close, defining a collapsed state for delivery and retrieval of the device. The expandable member is configured to helically open, defining an expanded state for removing thrombus from the body cavity. The expandable member has at least one member portion helically extending from the elongated shaft at a predetermined angle, defining a proximally faced opening when the member is in the expanded state.
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Citations
18 Claims
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1. A device for removing thrombus from a body cavity, the device comprising:
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a flexible wire having a proximal end and a distal end; an elongated shaft having a proximal portion and a distal portion, the proximal portion attached to the distal end of the flexible wire and distally extending therefrom to the distal portion; and an expandable member formed helically about the elongated shaft, the expandable member being configured to helically close defining a collapsed state for delivery and retrieval of the device, the expandable member being configured to helically open defining an expanded state for removing thrombus from the body cavity, the expandable member having at least one member portion helically extending from the elongated shaft at a predetermined angle defining a proximally faced opening when the member is in the expanded state. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A clot removal assembly for removing thrombus from a body cavity, the assembly comprising:
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an inner catheter having a tubular body portion; an outer catheter having a distal end throughwhich the inner catheter is disposed for deployment in the body vessel; and a clot removal device coaxially disposed within the inner catheter for removal of thrombus in a body cavity, the device comprising; a flexible wire having a proximal end and a distal end; an elongated shaft having a proximal portion and a distal portion, the proximal portion attached to the distal end of the flexible wire and distally extending therefrom; and an expandable member formed helically about the distal portion of the elongated shaft, the expandable member being configured to helically close defining a collapsed state for delivery and retrieval of the device, the expandable member being configured to helically open defining an expanded state for removing thrombus from the body cavity, the expandable member having at least one member portion helically extending from the elongated shaft at a predetermined angle defining an opening when the member is in the expanded state. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method for removing thrombus from a body vessel, the method comprising:
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percutaneously introducing an inner catheter in the body vessel, the inner catheter having a tubular body portion; disposing a clot removal device in a collapsed state coaxially within the inner catheter, the device comprising; an elongated shaft having a proximal portion and a distal portion; and an expandable member formed helically about the distal portion of the elongated shaft, the expandable member being configured to helically close defining the collapsed state for delivery through a thrombus in the body vessel of the device, the expandable member being configured to helically open defining an expanded state for removing thrombus in the body vessel, the expandable member having at least one member portion helically extending from the elongated shaft at a predetermined angle defining a proximally faced opening when the member is in the expanded state; and deploying the device in the collapsed state into the body vessel proximal to the thrombus; advancing the device in the collapsed state through the thrombus; opening the expandable member to the expanded state to receive the thrombus for removal of the thrombus from the body vessel; and retracting the device with the thrombus in the expandable member thereby removing the thrombus from the body vessel. - View Dependent Claims (16, 17, 18)
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Specification