Potassium monitoring
AssigneeMedtronic, Inc.
InventorsOrhan Soykan, Timothy Robinson, James Carney
Life of this patent
Estimating the term…
Abstract
In general, the invention is directed to methods and devices for determining a potassium ion concentration in the extracellular fluid of a patient. A system includes an electrode deployed in or near a tissue, such as a skeletal muscle, of the patient. A pulse generator supplies one or more stimulations to the tissue, and a sensor, such as an accelerometer, detects the response of the tissue to the stimulations. A processor determines a concentration of potassium ions in the extracellular fluid as a function of the response.
Claims36
A system comprising:
- a pulse generator configured to generate an electrical stimulation;
- an electrode configured to deliver the electrical stimulation to a tissue in a patient;
- a sensor configured to detect a response of the tissue to the electrical stimulation;
- and
- a processor configured to determine a concentration of potassium ions in extracellular fluid of the patient as a function of the response.
A method comprising:
- delivering an electrical stimulation to a tissue in a patient;
- detecting a response of the tissue to the electrical stimulation;
- and
- determining a concentration of potassium ions in extracellular fluid of the patient as a function of the response.
A computer-readable medium comprising instructions that cause a programmable processor to:
- control a pulse generator to deliver an electrical stimulation to a tissue in a patient;
- receive from a sensor a signal indicative of a response of the tissue to the electrical stimulations;
- and
- determine a concentration of potassium ions in extracellular fluid of the patient as a function of the response.
A method comprising:
- delivering an electrical stimulation to a tissue in a patient;
- detecting a response of the tissue to the electrical stimulations;
- and
- storing a relationship between a concentration of potassium ions in extracellular fluid of the patient and the response.
A computer-readable medium comprising instructions that cause a programmable processor to:
- control a pulse generator to deliver an electrical stimulation to a tissue in a patient;
- receive from a sensor a signal indicative of a response of the tissue to the electrical stimulations;
- and
- store a relationship between a concentration of potassium ions in extracellular fluid of the patient and the response.
Dependencies are inferred from the claim text.