Medical device and method of intravenous filtration
First Claim
1. A medical catheter, comprising:
- an elongate body comprising at least a first lumen extending between an inlet port and an outlet port in the elongate body;
a filter assembly comprising an expandable filter and a plurality of struts, the expandable filter comprising a proximal portion and a distal portion and each strut comprising a proximal end and a distal end, wherein the distal portion of the expandable filter is coupled to a portion of the medical catheter, the proximal ends of the struts are coupled to the elongate body, and the proximal portion of the expandable filter is coupled to the distal ends of the plurality of struts;
a first expandable balloon comprising a proximal end and a distal end, wherein the proximal end and the distal end are coupled to the elongate body and the first expandable balloon is positioned so that, when inflated, at least a portion of the first expandable balloon contacts the proximal portion of the expandable filter, and wherein the outlet port is positioned between the proximal end and the distal end so as to be in fluid communication with the first expandable balloon; and
a vascular stent positioned over at least a portion of the first expandable balloon.
1 Assignment
0 Petitions
Accused Products
Abstract
A medical catheter having an elongate body, a first expandable balloon and a filter assembly. The filter assembly includes an expandable filter having a first portion coupled to a portion of the medical catheter and a second portion positioned around at least a portion of the first expandable balloon to form a channel between the filter assembly and the first expandable balloon. The filter assembly can further include struts coupled to the second portion of the expandable filter, where the struts tether the second portion of the expandable filter to the elongate body adjacent the proximal end of the first expandable balloon. The first expandable balloon can be used in procedures to dilate blood vessels, including those that deploy stents, where the expandable filter assembly captures particles, including embolic particles, from the blood during the procedure.
64 Citations
57 Claims
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1. A medical catheter, comprising:
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an elongate body comprising at least a first lumen extending between an inlet port and an outlet port in the elongate body; a filter assembly comprising an expandable filter and a plurality of struts, the expandable filter comprising a proximal portion and a distal portion and each strut comprising a proximal end and a distal end, wherein the distal portion of the expandable filter is coupled to a portion of the medical catheter, the proximal ends of the struts are coupled to the elongate body, and the proximal portion of the expandable filter is coupled to the distal ends of the plurality of struts; a first expandable balloon comprising a proximal end and a distal end, wherein the proximal end and the distal end are coupled to the elongate body and the first expandable balloon is positioned so that, when inflated, at least a portion of the first expandable balloon contacts the proximal portion of the expandable filter, and wherein the outlet port is positioned between the proximal end and the distal end so as to be in fluid communication with the first expandable balloon; and a vascular stent positioned over at least a portion of the first expandable balloon. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A medical device system, comprising:
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a catheter comprising; an elongate body comprising at least a first lumen extending between an inlet port and an outlet port in the elongate body; a filter assembly comprising an expandable filter and a plurality of struts, the expandable filter comprising a proximal portion and a distal portion and each strut comprising a proximal end and a distal end, wherein the distal portion of the expandable filter is coupled to a portion of the medical catheter, the proximal ends of the struts are coupled to the elongate body, and the proximal portion of the expandable filter is coupled to the distal ends of the plurality of struts; a first expandable balloon comprising a proximal end and a distal end, wherein the proximal end and the distal end are coupled to the elongate body and the first expandable balloon is positioned so that, when inflated, at least a portion of the first expandable balloon contacts the proximal portion of the expandable filter, and wherein the outlet port is positioned between the proximal end and the distal end so as to be in fluid communication with the first expandable balloon; a vascular stent positioned over at least a portion of the first expandable balloon; and an inflation device comprising a fluid output port to couple to the inlet port of the first lumen, and a fluid pressure generator coupled to the fluid output port to deliver pressurized fluid through the fluid output port to the first expandable balloon. - View Dependent Claims (22)
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23. A medical catheter, comprising:
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an elongate body comprising at least a first lumen extending between an inlet port and an outlet port in the elongate body; a first expandable balloon comprising a proximal end and a distal end, wherein the proximal end and the distal end are coupled to the elongate body, and wherein the outlet port is positioned between the proximal end and the distal end so as to be in fluid communication with the first expandable balloon; a vascular stent positioned over at least a portion of the first expandable balloon; and a filter assembly comprising an expandable filter and a plurality of struts, wherein the expandable filter comprises a proximal portion and a distal portion and each strut comprises a proximal end and a distal end, wherein the distal portion of the expandable filter is coupled to a portion of the medical catheter, the proximal ends of the struts are coupled to the elongate body, and the proximal portion of the expandable filter is coupled to the distal ends of the plurality of struts, and wherein the first expandable balloon is positioned so that, when inflated, at least a portion of the first expandable balloon contacts the proximal portion of the expandable filter and a portion of the expandable filter is positioned around at least a portion of the first expandable balloon to form, when the expandable filter is deployed, a channel between the filter assembly and the first expandable balloon when the first expandable balloon is at least partially deflated after having been inflated. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
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44. A method, comprising:
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introducing a medical device catheter into a vas, wherein the medical device catheter comprises; an elongate body comprising at least a first lumen extending between an inlet port and an outlet port in the elongate body; a filter assembly comprising an expandable filter and a plurality of struts, the expandable filter comprising a proximal portion and a distal portion and each strut comprising a proximal end and a distal end, wherein the distal portion of the expandable filter is coupled to a portion of the medical catheter, the proximal ends of the struts are coupled to the elongate body, and the proximal portion of the expandable filter is coupled to the distal ends of the plurality of struts; a first expandable balloon comprising a proximal end and a distal end, wherein the proximal end and the distal end are coupled to the elongate body and the first expandable balloon is positioned so that, when inflated, at least a portion of the first expandable balloon contacts the proximal portion of the expandable filter, and wherein the outlet port is positioned between the proximal end and the distal end so as to be in fluid communication with the first expandable balloon; and a vascular stent positioned over at least a portion of the first expandable balloon; and inflating the expandable balloon to expand the filter assembly. - View Dependent Claims (45, 46, 47, 48, 49, 50, 51, 52, 53)
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54. A method, comprising:
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introducing a medical device catheter into a blood vessel, wherein blood moves through the blood vessel, wherein the medical device catheter comprises; an elongate body comprising at least a first lumen extending between an inlet port and an outlet port in the elongate body; a filter assembly comprising an expandable filter and a plurality of struts, the expandable filter comprising a proximal portion and a distal portion and each strut comprising a proximal end and a distal end, wherein the distal portion of the expandable filter is coupled to a portion of the medical catheter, the proximal ends of the struts are coupled to the elongate body, and the proximal portion of the expandable filter is coupled to the distal ends of the plurality of struts; a first expandable balloon comprising a proximal end and a distal end, wherein the proximal end and the distal end are coupled to the elongate body and the first expandable balloon is positioned so that, when inflated, at least a portion of the first expandable balloon contacts the proximal portion of the expandable filter, and wherein the outlet port is positioned between the proximal end and the distal end so as to be in fluid communication with the first expandable balloon; and a vascular stent positioned over at least a portion of the first expandable balloon; inflating the expandable balloon in the blood vessel deploying the filter assembly; at least partially deflating the expandable balloon to form a channel between the filter assembly and the expandable balloon through which the blood moves; and capturing particles from the blood in the filter assembly moving through the channel.
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55. A method of making a medical device catheter, comprising:
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providing an elongate body comprising at least a first lumen extending between an inlet port and an outlet port in the elongate body; coupling a first expandable balloon comprising a proximal end and a distal end to the elongate body, wherein the proximal end and the distal end are coupled to the elongate body, and wherein the outlet port is positioned between the proximal end and the distal end so as to be in fluid communication with the first expandable balloon; providing a vascular stent positioned over at least a portion of the first expandable balloon; and providing a filter assembly comprising an expandable filter and a plurality of struts, wherein the expandable filter comprises a proximal portion and a distal portion and each strut comprises a proximal end and a distal end, wherein the distal portion of the expandable filter is coupled to a portion of the medical catheter, the proximal ends of the struts are coupled to the elongate body, and the proximal end of the expandable filter is coupled to the distal ends of the plurality of struts, and wherein the first expandable balloon is positioned so that, when inflated, at least a portion of the first expandable balloon contacts the proximal portion of the expandable filter and a portion of the expandable filter is positioned around at least a portion of the first expandable balloon to form, when the expandable filter is deployed, a channel between the filter assembly and the first expandable balloon when the first expandable balloon is at least partially deflated after having been inflated.
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56. A medical device system, comprising:
a catheter comprising; an elongate body comprising at least a first lumen extending between an inlet port and an outlet port in the elongate body; a first expandable balloon comprising a proximal end and a distal end, wherein the proximal end and the distal end are coupled to the elongate body, and wherein the outlet port is positioned between the proximal end and the distal end so as to be in fluid communication with the first expandable balloon; a vascular stent positioned over at least a portion of the first expandable balloon; and a filter assembly comprising an expandable filter and a plurality of struts, wherein the expandable filter comprises a proximal portion and a distal portion and each strut comprises a proximal end and a distal end, wherein the distal portion of the expandable filter is coupled to a portion of the medical catheter, the proximal ends of the struts are coupled to the elongate body, and the proximal end of the expandable filter is coupled to the distal ends of the plurality of struts, and wherein the first expandable balloon is positioned so that, when inflated, at least a portion of the first expandable balloon contacts the proximal portion of the expandable filter and a portion of the expandable filter is positioned around at least a portion of the first expandable balloon to form, when the expandable filter is deployed, a channel between the filter assembly and the first expandable balloon when the first expandable balloon is at least partially deflated after having been inflated; and an inflation device comprising a fluid output port to couple to the inlet port of the first lumen, and a fluid pressure generator coupled to the fluid output port to deliver pressurized fluid through the fluid output port to the first expandable balloon. - View Dependent Claims (57)
Specification