Method and apparatus for in vivo surveillance of circulating biological components
First Claim
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1. A system for collecting markers associated with circulating biological components, comprising:
- a probe comprising a guidewire comprising a binding surface and an atraumatic distal tip, wherein the binding surface comprises an outer nanostructured polymer zone and an inner non-porous zone, wherein the nanostructured polymer zone has affixed thereto at least one binding partner for binding a marker, and wherein the nanostructured polymer zone is configured to immobilize a marker to the binding surface upon binding of the marker to the binding partner, thereby increasing the surface area of the binding surface;
wherein at least a portion of the guidewire is configured to be placed within an anatomical structure of a living organism to collect the markers.
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Abstract
The invention relates generally to in vivo collection of circulating molecules, tumor cells and other biological markers using a collecting probe. The probe is configured for placement within a living organism for an extended period of time to provide sufficient yield of biological marker for analysis.
97 Citations
20 Claims
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1. A system for collecting markers associated with circulating biological components, comprising:
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a probe comprising a guidewire comprising a binding surface and an atraumatic distal tip, wherein the binding surface comprises an outer nanostructured polymer zone and an inner non-porous zone, wherein the nanostructured polymer zone has affixed thereto at least one binding partner for binding a marker, and wherein the nanostructured polymer zone is configured to immobilize a marker to the binding surface upon binding of the marker to the binding partner, thereby increasing the surface area of the binding surface; wherein at least a portion of the guidewire is configured to be placed within an anatomical structure of a living organism to collect the markers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system for collecting markers associated with circulating biological markers, comprising:
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a probe comprising a guidewire comprising a binding surface and an atraumatic distal tip, wherein the binding surface comprises an outer microporous polymer zone and an inner non-porous zone, wherein the outer microporous polymer zone has affixed thereto at least one binding partner for binding a marker, and wherein the microporous polymer zone is configured to immobilize a marker to the binding surface upon binding of the marker to the binding partner, thereby increasing the surface area of the binding surface; wherein at least a portion of the guidewire is configured to be placed within a blood vessel of a living organism to collect the markers. - View Dependent Claims (14, 15, 16, 17)
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18. A system for collecting markers associated with circulating biological markers, comprising:
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a probe comprising a guidewire comprising a proximal end, binding surface, and an atraumatic distal tip, wherein the guidewire is configured to be implanted into a body lumen to bind at least one complementary target and ensure continuous contact with circulating body fluid within the body lumen, wherein the binding surface comprises an outer microporous polymer zone and an inner non-porous zone, wherein the outer microporous polymer zone has affixed thereto at least one binding partner for binding a marker, and wherein the microporous polymer zone is configured to immobilize a marker to the binding surface upon binding of the marker to the binding partner, thereby increasing the surface area of the binding surface; wherein the guidewire has an external diameter of from about 0.025 inches to about 0.100 inches, wherein the outer microporous polymer zone comprises an average pore size of between about 5 microns and about 150 microns. - View Dependent Claims (19, 20)
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Specification