# US 11,027,130 B2 · Transvascular nerve stimulation apparatus and methods > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,027,130 B2 - Document ID: US11027130B2 - Status: Granted - Kind: B2 - Application number: 16/827,947 - Filed: 2020-03-24 - Published: 2020-07-16 - Granted: 2021-06-08 - Earliest claimed: 2007-01-29 - Assignees: Lungpacer Medical Inc. - Applicants: Lungpacer Medical Inc. - Inventors: Joaquin Andres Hoffer - Web page: https://patentgrep.com/patent/US11027130B2 ## CPC - A61N 1/3611: {Respiration control (stimulating respiratory organs A61N1/3601)} - A61N 1/05: for implantation or insertion into the body, e.g. heart electrode (A61N1/06 takes precedence) - A61N 1/0551: {Spinal or peripheral nerve electrodes} - A61N 1/0558: {Anchoring or fixation means therefor} - A61N 1/3601: {of respiratory organs} - A61N 1/36139: {with automatic adjustment} - A61N 1/36185: {Selection of the electrode configuration} - A61N: ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY (measurement of bioelectric currents A61B; surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body A61B18/00; anaesthetic apparatus in general A61M; incandescent lamps H01K; infrared radiators for heating H05B) ## Abstract Electrode structures for transvascular nerve stimulation combine electrodes with an electrically-insulating backing layer. The backing layer increases the electrical impedance of electrical paths through blood in a lumen of a blood vessel and consequently increases the flow of electrical current through surrounding tissues. The electrode structures may be applied to stimulate nerves such as the phrenic, vagus, trigeminal, obturator or other nerves. ## Claims ### Claim 1 A method for treating a subject, the method comprising: sensing an onset of the subject's breathing; and in response to the sensing, delivering a stimulus to the subject's thorax or abdomen during the subject's breathing; wherein the stimulus causes a contraction of a breathing muscle of the subject, assisting the subject with ventilation; and wherein at least one of the sensing and delivering is carried out by one or more electrodes supported on a flexible insulating sheet, positioned within a blood vessel, and configured to deliver a stimulus. ### Claim 2 (depends on 1) The method of claim 1, wherein sensing an onset of the subject's breathing includes sensing an onset of an inspiration phase. ### Claim 3 (depends on 1) The method of claim 1, wherein delivering the stimulus to the subject's thorax or abdomen includes stimulating a diaphragm. ### Claim 4 (depends on 3) The method of claim 3, wherein stimulating the diaphragm includes delivering electrical stimulus to the diaphragm or a nerve. ### Claim 5 (depends on 1) The method of claim 1, wherein the contraction of the breathing muscle includes a contraction of a diaphragm. ### Claim 6 (depends on 1) The method of claim 1, wherein assisting the subject with ventilation includes promoting regular ventilation and/or maintaining a normal ventilation drive. ### Claim 7 (depends on 1) The method of claim 1, wherein the one or more electrodes includes an electrode pair, and delivering the stimulus includes delivering an electrical signal via the electrode pair. ### Claim 8 (depends on 1) The method of claim 1, wherein sensing an onset of the subject's breathing includes using an accelerometer to determine a movement of the subject. ### Claim 9 An apparatus comprising: one or more sensors suitable for detecting when a subject is breathing; a device configured to deliver a stimulus to the subject's thorax or abdomen during at least part of a phase of the subject's breathing in response to a signal generated by the one or more sensors; and a flexible insulating sheet including one or more electrodes; wherein the stimulus is delivered via the one or more electrodes positioned within a blood vessel, and is effective to cause a contraction in a muscle of the subject. ### Claim 10 (depends on 9) The apparatus of claim 9, wherein the one or more sensors include an accelerometer configured to determine a movement of the subject. ### Claim 11 (depends on 9) The apparatus of claim 9, wherein the one or more sensors are suitable for detecting when a subject is inhaling or exhaling. ### Claim 12 (depends on 9) The apparatus of claim 9, wherein the phase of breathing is an inspiration phase. ### Claim 13 (depends on 9) The apparatus of claim 9, wherein delivering stimulus to the subject's thorax or abdomen includes delivering stimulus to a diaphragm. ### Claim 14 (depends on 13) The apparatus of claim 13, wherein delivering stimulus to the diaphragm includes delivering electrical stimulus to the diaphragm or a nerve. ### Claim 15 (depends on 9) The apparatus of claim 9, wherein the contraction of the breathing muscle includes a contraction of a diaphragm. ### Claim 16 (depends on 9) The apparatus of claim 9, wherein the device is configured to deliver stimulus during an inspiration phase of the subject's breathing. ### Claim 17 (depends on 9) The apparatus of claim 9, wherein delivering the stimulus includes delivering an electrical signal via an electrode pair of the one or more electrodes. ### Claim 18 (depends on 9) The apparatus of claim 9, wherein the apparatus is at least in part implantable in the subject's thorax or abdomen. ### Claim 19 (depends on 9) The apparatus of claim 9, wherein the one or more electrodes are first electrodes, the stimulus is a first stimulus, and the apparatus further includes one or more second electrodes; wherein the first electrodes are configured to deliver the first stimulus to a first region of the subject's thorax or abdomen; the second electrodes are configured to deliver a second stimulus to a second region of the subject's thorax or abdomen; and the first stimulus causes contraction of a first portion of a respiratory muscle, and the second stimulus causes contraction of a second portion of the respiratory muscle. ### Claim 20 (depends on 9) The apparatus of claim 9, wherein the flexible insulating sheet includes a lead connecting the one or more electrodes to the device; and wherein the stimulus delivered via the one or more electrodes includes an electrical field emitted from one surface of the flexible insulating sheet. ### Claim 21 (depends on 9) The apparatus of claim 9, wherein the flexible insulating sheet is configured to conform to a portion of the subject's anatomy. ### Claim 22 (depends on 1) The method of claim 1, wherein the one or more electrodes are components of one or more implanted sensors or implanted devices. ### Claim 23 (depends on 1) The method of claim 1, wherein the flexible insulating sheet includes a lead connecting the one or more electrodes to a stimulation source. ### Claim 24 (depends on 1) The method of claim 1, wherein the one or more electrodes are configured to emit an electrical field that extends from only a portion of the circumference of the flexible insulating sheet. ### Claim 25 (depends on 1) The method of claim 1, wherein while the stimulus is being delivered, the one or more electrodes do not contact the breathing muscle. ### Claim 26 (depends on 1) The method of claim 1, wherein sensing an onset of the subject's breathing including sensing an onset of the subject's breathing with one or more implanted sensors or electrodes. ### Claim 27 A method for treating a subject, the method comprising: sensing a subject's breathing; and in response to the sensing, delivering a stimulus to the subject's thorax or abdomen during the subject's breathing, wherein: the stimulus causes a contraction of a breathing muscle of the subject, assisting the subject with ventilation; the delivering is carried out by at least one pair of electrodes supported on at least one flexible insulating sheet, wherein the at least one pair of electrodes is positioned within a blood vessel and configured to emit an electrical field that extends from only a portion of the circumference of the at least one flexible insulating sheet; the at least one flexible insulating sheet includes a lead connecting the at least one pair of electrodes to a stimulation source; and while the stimulus is being delivered, the one or more electrodes do not contact the breathing muscle. ### Claim 28 (depends on 27) The method of claim 27, wherein the flexible insulating sheet is configured to conform to a portion of the subject's anatomy.