Temporary venous filter with anti-coagulant delivery method
First Claim
Patent Images
1. A filter for capturing and treating blood clots in a blood vessel, the filter comprising:
- only one hub having a distal end and a proximal end;
a plurality of struts extending distally from the distal end of the hub and having distal strut ends located radially outward from the hub in an expanded configuration; and
a tubular member disposed through the hub, the tubular member having a distal end and a proximal end and extending along a central longitudinal axis when the struts are in the expanded configuration, the tubular member having a distal portion extending from the distal end of the hub to the distal end of the tubular member, an intermediate portion extending through the hub from the proximal end of the hub to the distal end of the hub, and a proximal portion extending from the proximal end of the hub to the proximal end of the tubular member, the distal portion, the intermediate portion, and the proximal portion being in fluid communication via a lumen extending inside the tubular member, the distal portion of the tubular member having a plurality of perforations, and the proximal end being free of perforations and having an opening in communication with the lumen and with the perforations, the opening being located relative to the hub longitudinally opposite the plurality of struts and configured to be sealingly attached to a catheter to place a lumen of the catheter in fluid communication with the lumen of the tubular member, the distal end of the tubular member being closed.
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Abstract
The present invention provides a removable vena cava filter for capturing and treating blood clots in a blood vessel. The filter comprises a hub, a plurality of struts extending distally from the hub, and a tubular member disposed through the hub. The tubular member has a proximal end and a distal portion including a plurality of perforations. A catheter may be attached to the proximal end of the tubular member. Fluid may be injected into the catheter to treat blood clots captured in the filter.
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Citations
19 Claims
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1. A filter for capturing and treating blood clots in a blood vessel, the filter comprising:
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only one hub having a distal end and a proximal end; a plurality of struts extending distally from the distal end of the hub and having distal strut ends located radially outward from the hub in an expanded configuration; and a tubular member disposed through the hub, the tubular member having a distal end and a proximal end and extending along a central longitudinal axis when the struts are in the expanded configuration, the tubular member having a distal portion extending from the distal end of the hub to the distal end of the tubular member, an intermediate portion extending through the hub from the proximal end of the hub to the distal end of the hub, and a proximal portion extending from the proximal end of the hub to the proximal end of the tubular member, the distal portion, the intermediate portion, and the proximal portion being in fluid communication via a lumen extending inside the tubular member, the distal portion of the tubular member having a plurality of perforations, and the proximal end being free of perforations and having an opening in communication with the lumen and with the perforations, the opening being located relative to the hub longitudinally opposite the plurality of struts and configured to be sealingly attached to a catheter to place a lumen of the catheter in fluid communication with the lumen of the tubular member, the distal end of the tubular member being closed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A filter assembly for capturing and treating blood clots in a blood vessel, the assembly comprising:
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a filter comprising; only one hub having a distal end and a proximal end; a plurality of struts extending distally from the distal end of the hub and having distal strut ends located radially outward from the hub in an expanded configuration; and a tubular member disposed through the hub, the tubular member having a distal end and a proximal end and extending along a central longitudinal axis when the struts are in the expanded configuration; and the tubular member having a distal portion extending from the distal end of the hub to the distal end of the tubular member, an intermediate portion extending through the hub from the proximal end of the hub to the distal end of the hub, and a proximal portion extending from the proximal end of the hub to the proximal end of the tubular member, the distal portion, the intermediate portion, and the proximal portion being in fluid communication via a lumen extending inside the tubular member, the distal portion of the tubular member having a plurality of perforations, and the proximal end having an opening in communication with the lumen and with the perforations, wherein the proximal portion is free of perforations, the distal end of the tubular member being closed; and a catheter in fluid communication with the lumen of the tubular member, the catheter having a distal end and a proximal end, the distal end of the catheter sealingly adjoining the proximal end of the tubular member, the proximal end of the tubular member being located relative to the hub longitudinally opposite the plurality of struts. - View Dependent Claims (10, 11, 12, 13)
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14. A method for capturing and treating blood clots in a blood vessel, the method comprising the steps of:
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deploying a filter assembly in the blood vessel, the filter assembly comprising; a filter comprising; only one hub having a distal end and a proximal end; a plurality of struts extending distally from the distal end of the hub and having distal strut ends located radially outward from the hub in an expanded configuration; and a tubular member passing through the hub, the tubular member having a distal end and a proximal end and extending along a central longitudinal axis when the struts are in the expanded configuration, the tubular member having a distal portion extending from the distal end of the hub to the distal end of the tubular member, an intermediate portion extending through the hub from the proximal end of the hub to the distal end of the hub, and a proximal portion extending from the proximal end of the hub to the proximal end of the tubular member, the distal portion, the intermediate portion, and the proximal portion being in fluid communication via a lumen extending inside the tubular member, the distal portion of the tubular member having a plurality of perforations, wherein the proximal portion is free of perforations, and the proximal end having an opening in fluid communication with the lumen and with the perforations, the distal end of the tubular member being closed; and a catheter in fluid communication with the lumen of the tubular member, the catheter having a distal end and a proximal end, the distal end of the catheter being attached to the proximal end of the tubular member located relative to the hub longitudinally opposite the struts, the proximal end of the catheter residing outside the blood vessel; injecting a fluid into the proximal end of the catheter. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification