Systems and methods for adjusting electrical therapy based on impedance changes
First Claim
1. A patient therapy system, comprising:
- an implantable signal delivery device having an electrical contact positionable to deliver therapy signals to a target neural population of a patient; and
an implantable pulse generator electrically coupleable to the implantable signal delivery device and configured to generate the therapy signals, wherein the therapy signals include a signal parameter, and wherein the implantable pulse generator includes a computer-readable medium having instructions that, when executed,determine a proximity of the electrical contact to the patient'"'"'s cerebral spinal fluid, andin response to a change in the proximity of the electrical contact to the patient'"'"'s cerebral spinal fluid, adjust the signal parameter.
2 Assignments
0 Petitions
Accused Products
Abstract
System and methods for adjusting electrical therapy based on impedance changes are disclosed herein. A method in accordance with a particular embodiment includes applying a therapeutic electrical signal to a patient via an implanted portion of a patient stimulation system that includes a signal delivery device in electrical communication with a target neural population of the patient. The electrical signal is delivered in accordance with a signal delivery parameter having a first value. Using the implanted portion of the patient stimulation system, a change in an impedance of an electrical circuit that includes the signal delivery device is detected. Based at least in part on the detected impedance change, the method can further include automatically adjusting the value of the signal delivery parameter from the first value to a second value different from the first, without human intervention.
151 Citations
21 Claims
-
1. A patient therapy system, comprising:
-
an implantable signal delivery device having an electrical contact positionable to deliver therapy signals to a target neural population of a patient; and an implantable pulse generator electrically coupleable to the implantable signal delivery device and configured to generate the therapy signals, wherein the therapy signals include a signal parameter, and wherein the implantable pulse generator includes a computer-readable medium having instructions that, when executed, determine a proximity of the electrical contact to the patient'"'"'s cerebral spinal fluid, and in response to a change in the proximity of the electrical contact to the patient'"'"'s cerebral spinal fluid, adjust the signal parameter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A patient therapy system, comprising:
-
an implantable signal delivery device having a first electrode and a second electrode, wherein the first electrode is positionable to deliver first therapy signals to a target neural population of a patient via a first electrical circuit that includes the first electrode, and the second electrode is positionable to deliver second therapy signals to the target neural population via a second electrical circuit that includes the second electrode; and an implantable pulse generator electrically coupleable to the implantable signal delivery device and having a computer-readable medium including instructions that, when executed, initiate delivery of the first therapy signals to the target neural population via the first electrode; measure an impedance of the first electrical circuit to determine if the first electrical circuit is an open circuit, and in response to a determination that the first electrical circuit is an open circuit, initiate delivery of the second therapy signals to the target neural population via the second electrode. - View Dependent Claims (11, 12, 13, 14, 15, 16)
-
-
17. A method for delivering therapy signals to a target neural population of a patient, the method comprising:
-
generating a therapy signal at an implantable pulse generator, wherein the therapy signal includes a signal parameter; transmitting the therapy signal to the target neural population via an electrode of a signal delivery device coupled to the implantable pulse generator; determining a proximity of the electrode to the patient'"'"'s cerebral spinal fluid; and in response to a change in the proximity of the electrode to the patient'"'"'s cerebral spinal fluid, adjusting the signal parameter. - View Dependent Claims (18, 19, 20, 21)
-
Specification