Systems and methods for detecting intrathecal penetration
First Claim
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1. A computer-readable medium for use with a patient, having instructions that, when executed:
- receive information corresponding to an impedance measured between two electrical contacts, carried by a signal delivery device, and intervening patient tissue adjacent to the electrical contacts;
compare the information to a predetermined criterion;
if the information meets the predetermined criterion, provide an indication that the patient'"'"'s dura has been penetrated; and
if the information does not meet the predetermined criterion, cause a pulse generator to generate a neural modulation signal to be delivered to the patient via the signal delivery device.
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Abstract
Systems and methods for detecting intrathecal penetration are disclosed. A method in accordance with one embodiment includes detecting a value corresponding to an impedance of an electrical circuit that in turn includes an electrical contact located within the patient, and patient tissue adjacent to the electrical contact. The method further includes comparing the detected value to a predetermined criterion, and, if the detected value meets the predetermined criterion, identifying penetration of the patient'"'"'s dura based at least in part on the detected value.
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Citations
15 Claims
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1. A computer-readable medium for use with a patient, having instructions that, when executed:
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receive information corresponding to an impedance measured between two electrical contacts, carried by a signal delivery device, and intervening patient tissue adjacent to the electrical contacts; compare the information to a predetermined criterion; if the information meets the predetermined criterion, provide an indication that the patient'"'"'s dura has been penetrated; and if the information does not meet the predetermined criterion, cause a pulse generator to generate a neural modulation signal to be delivered to the patient via the signal delivery device. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A computer-readable medium for use with a patient, having instructions that, when executed:
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receive information corresponding to an impedance determined between electrical contacts carried by a signal delivery device, and intervening patient tissue adjacent to the electrical contacts; and if the information meets a predetermined criterion, provide an indication that the patient'"'"'s dura has been penetrated;
orif the information does not meet the predetermined criterion, cause a neural modulation signal to be delivered to the patient via the signal delivery device. - View Dependent Claims (9, 10, 11, 12)
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13. A computer-readable medium for use with a patient, having instructions that, when executed:
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receive information corresponding to an impedance measured between electrical contacts carried by a signal delivery device, and intervening patient tissue adjacent to the electrical contacts; compare the information to a predetermined criterion; if the information meets the predetermined criterion, provide an indication that the patient'"'"'s dura has been penetrated, wherein the predetermined criterion includes a reference impedance of 50 ohms or less; and if the information does not meet the predetermined criterion, cause a neural modulation signal to be delivered to the patient via the signal delivery device. - View Dependent Claims (14, 15)
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Specification