Systems and methods for peripheral nerve stimulation in the finger or hand to treat hand tremors
AssigneeCala Health, Inc.
InventorsSamuel Richard Hamner, Kathryn H. Rosenbluth, Serena HanYing Wong, Swaril Mathur, Paula Jean Chidester, Terence D. Sanger
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Abstract
Systems, devices, and methods for stimulating peripheral nerves in the fingers or hand to treat tremor are described. For example, a wearable ring device for delivering electrical stimulation to sensory nerves in a patient's finger can include an annular ring having a plurality of electrodes and a detachable unit having a power source and a pulse generator.
Claims21
A wearable ring device for treating hand tremors by electrically stimulating one or more sensory nerves on a finger of a patient's hand, the device comprising:
- an annular member defining an aperture that is sized to receive a finger of the patient;
- a first electrode, a second electrode, and a third electrode housed on an inside surface of the annular member and configured to be in contact with the patient's skin when worn on the finger;
- and
- a stimulation unit that is configured to connect to the annular member, wherein when the unit is connected to the annular member the unit is in electrical communication to the first electrode, the second electrode, and the third electrode, wherein the unit houses a power source and a pulse generator configured to deliver pulsed electrical stimulation to the one or more sensory nerves in the finger,
- wherein when worn the first electrode is configured to be positioned on the dorsal side of the finger, the second electrode is configured to be positioned on the palmar side of the finger, and the third electrode is configured to be positioned between the first and second electrodes.
A wearable ring device for treating hand tremors by electrically stimulating one or more sensory nerves on a finger of a patient's hand, the device comprising:
- an annular member defining an aperture that is sized to receive a finger of the patient;
- a first electrode, a second electrode, and a third electrode housed on an inside surface of the annular member and configured to be in contact with the patient's skin when worn on the finger;
- and
- a stimulation unit that is configured to connect to the annular member, wherein when the unit is connected to the annular member the unit is in electrical communication to the first electrode, the second electrode, and the third electrode, wherein the unit houses a power source and a pulse generator configured to deliver pulsed electrical stimulation to the one or more sensory nerves in the finger,
- wherein the annular member comprises one or more motion sensors, and wherein the pulse generator is configured to modulate the pulsed electrical stimulation based on measurements of tremor motion and activity from the one or more motion sensors, wherein the one or more motion sensors are selected from the group consisting of an inertial measurement unit, an accelerometer, a gyroscope, and a magnetometer.
A wearable ring device for treating hand tremors by electrically stimulating one or more sensory nerves on a finger of a patient's hand, the device comprising:
- an annular member defining an aperture that is sized to receive a finger of the patient;
- a first electrode, a second electrode, and a third electrode housed on an inside surface of the annular member and configured to be in contact with the patient's skin when worn on the finger;
- a stimulation unit that is configured to connect to the annular member, wherein when the unit is connected to the annular member the unit is in electrical communication to the first electrode, the second electrode, and the third electrode, wherein the unit houses a power source and a pulse generator configured to deliver pulsed electrical stimulation to the one or more sensory nerves in the finger;
- and
- a second annular member defining an aperture that is sized to receive the finger of the patient, wherein the second annular member comprises one or more motion sensors configured to measure motion of the patient's hand.
Dependencies are inferred from the claim text.