Control system for arterial catheter

Abstract

A control system for an arterial catheter operable to selectively impede blood flow includes a processor and a storage medium accessible to the processor that bears instructions which when executed by the processor cause the processor to execute logic including receiving a first signal representing a physical parameter associated with a patient in whom the catheter is disposed, receiving a second signal representative of time, and causing inflation of a first balloon on the catheter to impede blood flow in the first artery. Based at least in part on the first signal satisfying a first condition, the instructions include causing deflation of the first balloon. Based at least in part on the second signal indicating elapse of a predetermined time period, the instructions include causing deflation of the first balloon regardless of whether the first signal satisfies the first condition.

1 - 11 . (canceled) 
     
     
         12 . Control system for an arterial catheter operable to selectively impede blood flow in a first artery to increase blood flow in a second artery, comprising:
 at least one processor;   at least one computer readable storage medium accessible to the processor and bearing instructions which when executed by the processor cause the processor to execute logic comprising:   receiving a first signal representing a physical parameter associated with a patient in whom the catheter is disposed;   receiving a second signal representative of time;   causing inflation of a first balloon on the catheter to impede blood flow in the first artery;   based at least in part on the second signal indicating elapse of a predetermined time period, causing deflation of the first balloon; and   based at least in part on the first signal satisfying a first condition, causing deflation of the first balloon regardless of whether the second signal indicates the elapse of the predetermined time period.   
     
     
         13 . The system of  claim 12 , wherein the physical parameter includes blood pressure of the patient. 
     
     
         14 . The system of  claim 12 , wherein the physical parameter includes pressure internal to the first balloon. 
     
     
         15 . The system of  claim 12 , wherein the physical parameter includes amount of blockage of the first artery by the first balloon. 
     
     
         16 . The system of  claim 12 , wherein the physical parameter includes blood flow rate through the first artery. 
     
     
         17 . The system of  claim 12 , wherein the first artery is a femoral artery and the second artery is a carotid artery. 
     
     
         18 . The system of  claim 12 , wherein the catheter includes a second balloon and the logic executed by the processor when accessing the instructions further includes:
 inflating the second balloon;   based at least in part on the second signal indicating elapse of a predetermined time period, causing deflation of the second balloon; and   based at least in part on the first signal satisfying a condition, causing deflation of the second balloon regardless of whether the second signal indicates the elapse of the predetermined time period.   
     
     
         19 . The system of  claim 12 , wherein the catheter includes a second balloon and the logic executed by the processor when accessing the instructions further includes:
 inflating the first and second balloons simultaneously with each other.   
     
     
         20 . The system of  claim 12 , wherein the catheter includes a second balloon and the logic executed by the processor when accessing the instructions further includes:
 inflating the first balloon before inflating the second balloon.   
     
     
         21 . The system of  claim 20 , wherein the first balloon is distal to the second balloon. 
     
     
         20 . The system of  claim 20 , wherein the first balloon is proximal to the second balloon. 
     
     
         23 - 25 . (canceled)