Intravascular cerebral catheter device and method of use
First Claim
1. A catheter device, comprising:
- an elongate catheter body, comprising a distal end and a proximal end;
at least one lumen extending from the proximal end to the distal end of the elongate catheter body;
a distal sensor device affixed to the elongate catheter body substantially near the distal end, wherein the distal sensor device generates a first signal that is a distal pressure or flow rate;
a proximal sensor device affixed to the elongate catheter body proximal the distal sensor device and configured to be positioned in a patient'"'"'s systemic vasculature, wherein the proximal sensor device generates a second signal that is a proximal pressure or flow rate;
a controller in communication with the proximal and distal sensor devices, anda fluid delivery device in fluid communication with the at least one lumen and in electrical communication with the controller;
wherein said catheter device is a cerebral catheter device configured to be inserted into cerebral arteries;
wherein the controller is configured to perform an analysis comprising comparing;
the first and second signals generated from the distal and proximal sensor devices, and cause an(a) increase in fluid delivery to the at least one lumen from the fluid delivery device if the distal pressure or flow rate is at a first predefined limit greater than the proximal pressure or flow rate, or(b) decrease in fluid delivery to the at least one lumen from the fluid delivery device if the distal pressure or flow rate is at a second predefined limit lower than the proximal pressure or flow rate.
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Accused Products
Abstract
Cerebral catheter devices and methods for use are provided. The catheter devices provided may include an anti-thrombotic agent coating on an exterior surface. The catheter devices may include unique tip configurations to allow improved fluid delivery capabilities. Further, the catheter devices may also or alternatively include one or more sensor devices in communication with a controller that allow automatically adjusting a delivery of a therapeutic fluid, for example a vasodilator, in response to a condition sensed by the catheter devices, such as increased pressure. Moreover, the catheter devices may also be used in conjunction with blood flow transducers to detect and timely prevent and treat vasospasms or other conditions. Methods for preventing and treating vasospasm, neoplasm, or other pathological conditions while prolonged using the catheter devices are also provided.
11 Citations
25 Claims
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1. A catheter device, comprising:
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an elongate catheter body, comprising a distal end and a proximal end; at least one lumen extending from the proximal end to the distal end of the elongate catheter body; a distal sensor device affixed to the elongate catheter body substantially near the distal end, wherein the distal sensor device generates a first signal that is a distal pressure or flow rate; a proximal sensor device affixed to the elongate catheter body proximal the distal sensor device and configured to be positioned in a patient'"'"'s systemic vasculature, wherein the proximal sensor device generates a second signal that is a proximal pressure or flow rate; a controller in communication with the proximal and distal sensor devices, and a fluid delivery device in fluid communication with the at least one lumen and in electrical communication with the controller; wherein said catheter device is a cerebral catheter device configured to be inserted into cerebral arteries; wherein the controller is configured to perform an analysis comprising comparing; the first and second signals generated from the distal and proximal sensor devices, and cause an (a) increase in fluid delivery to the at least one lumen from the fluid delivery device if the distal pressure or flow rate is at a first predefined limit greater than the proximal pressure or flow rate, or (b) decrease in fluid delivery to the at least one lumen from the fluid delivery device if the distal pressure or flow rate is at a second predefined limit lower than the proximal pressure or flow rate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification