Catheter with electrodes for impedance and/or conduction velocity measurement
First Claim
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1. An apparatus, comprising:
- an introducer usable to insert a catheter in to a blood vessel, the catheter comprising a first electrode;
a second electrode when electrically attached to a person is to be coupled to said first electrode via the person'"'"'s tissue; and
logic coupled to said electrodes, said logic generates an electrical signal that is provided through said electrodes and computes an impedance or conduction velocity associated with said electrodes based on said electrical signal;
wherein said logic stores a threshold against which said computed impedance or conduction velocity is compared by said logic; and
wherein said logic detects bleeding based on a comparison of the computed impedance or conduction velocity to the threshold and generates an alert indicative of the patient bleeding based on the computed impedance or conduction velocity exceeding the threshold.
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Abstract
An apparatus comprises a catheter comprising a first electrode. The apparatus also comprises a second electrode electrically attached to a person and coupled to the first electrode via the person'"'"'s tissue. Logic is coupled to the electrodes and generates an electrical signal that is provided through the electrodes and computes an impedance or conduction velocity associated with the electrodes based on the electrical signal. The logic stores a threshold against which said computed impedance or conduction velocity is compared by said logic.
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Citations
12 Claims
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1. An apparatus, comprising:
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an introducer usable to insert a catheter in to a blood vessel, the catheter comprising a first electrode; a second electrode when electrically attached to a person is to be coupled to said first electrode via the person'"'"'s tissue; and logic coupled to said electrodes, said logic generates an electrical signal that is provided through said electrodes and computes an impedance or conduction velocity associated with said electrodes based on said electrical signal; wherein said logic stores a threshold against which said computed impedance or conduction velocity is compared by said logic; and wherein said logic detects bleeding based on a comparison of the computed impedance or conduction velocity to the threshold and generates an alert indicative of the patient bleeding based on the computed impedance or conduction velocity exceeding the threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus, comprising:
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an introducer usable to insert a catheter in to a blood vessel, the catheter comprising a first electrode; a second electrode when electrically attached to a person is to be coupled to said first electrode via the person'"'"'s tissue; and a signal generator coupled to said electrodes, said signal generator generates an electrical signal that is provided through said electrodes, computes an impedance associated with said electrodes based on said electrical signal, and determines whether the person is experiencing bleeding based on the computed impedance; wherein the signal generator generates an alert based on a determination that the person is experiencing bleeding. - View Dependent Claims (12)
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Specification