Systems and methods for controlling reperfusion in a vessel
First Claim
1. A system for controlling reperfusion in a blood vessel of a patient comprising:
- a flexible elongated member configured and dimensioned for insertion in the vessel of the patient, the elongated member having a proximal portion and a distal portion, the elongated member configured for insertion so the distal portion extends distal of a blood clot in the blood vessel;
a sensor positioned at the distal portion of the elongated member for positioning distal of the blood clot, the sensor measuring a parameter of blood downstream of the blood clot;
an indicator communicating with the sensor, the indicator indicating a measured parameter of the blood to determine a) a blood clot treatment and b) whether restoration of normal blood flow as a result of clot removal is acceptable or needs to be controlled by a blood flow regulating catheter inserted over the flexible elongated member; and
the blood flow regulating catheter positionable over the flexible elongated member, the catheter having a mechanical thrombectomy device for mechanically removing the blood clot and a balloon distal of the mechanical thrombectomy device, the balloon inflatable to reduce blood flow in the vessel until the parameter of blood rises to an acceptable level, the balloon being partially deflatable to gradually restore blood flow around an outer wall of the balloon and downstream of the balloon and through the vessel as the blood clot is removed.
1 Assignment
0 Petitions
Accused Products
Abstract
A system for controlling reperfusion in a blood vessel of a patient including a flexible elongated member configured and dimensioned for insertion in the vessel of the patient, the elongated member having a proximal portion and a distal portion, the elongated member configured for insertion so the distal portion extends distal of a clot in the blood vessel. A sensor is positioned at the distal portion of the elongated member for positioning distal of the blood clot, the sensor measuring a parameter of blood downstream of the clot. An indicator communicates with the sensor, the indicator indicating a measured parameter for insertion of an instrument for controlling blood flow.
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Citations
19 Claims
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1. A system for controlling reperfusion in a blood vessel of a patient comprising:
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a flexible elongated member configured and dimensioned for insertion in the vessel of the patient, the elongated member having a proximal portion and a distal portion, the elongated member configured for insertion so the distal portion extends distal of a blood clot in the blood vessel; a sensor positioned at the distal portion of the elongated member for positioning distal of the blood clot, the sensor measuring a parameter of blood downstream of the blood clot; an indicator communicating with the sensor, the indicator indicating a measured parameter of the blood to determine a) a blood clot treatment and b) whether restoration of normal blood flow as a result of clot removal is acceptable or needs to be controlled by a blood flow regulating catheter inserted over the flexible elongated member; and the blood flow regulating catheter positionable over the flexible elongated member, the catheter having a mechanical thrombectomy device for mechanically removing the blood clot and a balloon distal of the mechanical thrombectomy device, the balloon inflatable to reduce blood flow in the vessel until the parameter of blood rises to an acceptable level, the balloon being partially deflatable to gradually restore blood flow around an outer wall of the balloon and downstream of the balloon and through the vessel as the blood clot is removed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for controlling reperfusion in a blood vessel of a patient comprising:
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a flexible elongated member configured and dimensioned for insertion in the vessel of the patient, the elongated member having a proximal portion and a distal portion, the elongated member configured for insertion so the distal portion extends distal of a blood clot in the blood vessel; a sensor positioned at the distal portion of the elongated member for positioning distal of the blood clot, the sensor measuring a parameter of blood downstream of the blood clot; an indicator communicating with the sensor, the indicator indicating a measured parameter of the blood to determine a) a blood clot treatment and b) whether restoration of normal blood flow as a result of clot removal is acceptable or needs to be controlled by a blood flow regulating catheter inserted over the flexible elongated member; and the blood flow regulating catheter positionable over the flexible elongated member, the catheter having a lumen to transport cryogenic fluid into the blood vessel distal of the blood clot to reduce blood flow in the vessel, the cryogenic fluid flowing out of a distal opening of the catheter into the blood vessel. - View Dependent Claims (11)
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12. A method for determining the rate for reperfusion in a vessel of a patient comprising the steps of:
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a) providing an elongated flexible member; b) inserting the flexible member through vasculature of the patient and past a blood clot in the vessel to a position downstream of the clot in the vessel; c) measuring a parameter of the blood downstream of the blood clot; d) indicating to a user the parameter of the blood to enable the user to determine a condition of the vasculature and determine an effect blood flow will have on the vessel downstream once the blood clot is removed and blood flow restored to determine a rate of reperfusion; and e) during removal of the blood clot, controlling the rate of perfusion of blood through the vessel by slowing the rate of perfusion until the parameter of blood rises to an acceptable level. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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Specification