Systems and methods for intravascular catheter positioning and/or nerve stimulation
First Claim
1. A method, comprising:
- inserting a catheter into a first blood vessel and a superior vena cava, wherein the catheter includes a plurality of electrodes;
using one or more electrodes of the plurality of electrodes to acquire one or more electrical signals emitted from a nerve;
based on the one or more electrical signals, positioning the catheter relative to the nerve and selecting at least one electrode to stimulate the nerve; and
stimulating the nerve to cause a contraction of a respiratory muscle.
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Accused Products
Abstract
A method for positioning an intravascular catheter may include inserting the intravascular catheter into a venous system of a patient, wherein the catheter includes a plurality of electrodes, and multiple electrodes of the plurality of electrodes are configured to emit electrical signals; positioning a distal portion of the catheter in a first position; using one or more electrodes of the plurality of electrodes to acquire an ECG signal; based on the acquired ECG signal, adjusting the distal portion of the catheter to a second position different from the first position; identifying at least one first electrode of the plurality of electrodes to stimulate a first nerve; identifying at least one second electrode of the plurality of electrodes to stimulate a second nerve; and stimulating at least one of the first and second nerves to cause a contraction of a respiratory muscle.
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Citations
20 Claims
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1. A method, comprising:
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inserting a catheter into a first blood vessel and a superior vena cava, wherein the catheter includes a plurality of electrodes; using one or more electrodes of the plurality of electrodes to acquire one or more electrical signals emitted from a nerve; based on the one or more electrical signals, positioning the catheter relative to the nerve and selecting at least one electrode to stimulate the nerve; and stimulating the nerve to cause a contraction of a respiratory muscle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method, comprising:
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inserting a catheter into a first blood vessel and a superior vena cava, wherein the catheter includes a plurality of electrodes, and the plurality of electrodes include proximal electrodes positioned in the first vessel proximate a first nerve and distal electrodes positioned in the superior vena cava proximate a second nerve; using one or more electrodes of the proximal electrodes to acquire a first electrical signal emitted from the first nerve; based on the first electrical signal, selecting at least one electrode of the proximal electrodes to stimulate the first nerve; using one or more electrodes of the distal electrodes to acquire a second electrical signal emitted from the second nerve; based on the second electrical signal, selecting at least one electrode of the distal electrodes to stimulate the second nerve; based on at least one of the first or second electrical signals, positioning the catheter relative to the first or second nerve; and stimulating at least one of the first or second nerves to cause a contraction of a respiratory muscle. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A method, comprising:
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inserting a catheter into;
a) at least one of a left subclavian vein or left jugular vein, and b) a superior vena cava, wherein the catheter includes a plurality of electrodes, and the plurality of electrodes include proximal electrodes positioned proximate a left phrenic nerve and distal electrodes positioned proximate a right phrenic nerve;using one or more electrodes of the proximal electrodes to acquire a first electrical signal emitted from the left phrenic nerve; based on the first electrical signal, selecting at least one electrode of the proximal electrodes to stimulate the left phrenic nerve; using one or more electrodes of the distal electrodes to acquire a second electrical signal emitted from the right phrenic nerve; based on the second electrical signal, selecting at least one electrode of the distal electrodes to stimulate the right phrenic nerve; based on at least one of the first or second electrical signals, positioning the catheter relative to the left or right phrenic nerve; and stimulating at least one of the left or right phrenic nerves to cause a contraction of a diaphragm. - View Dependent Claims (18, 19, 20)
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Specification