Detecting empty medical pump reservoir
First Claim
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1. A medical device system comprising:
- a reservoir configured to store a therapeutic fluid;
a medical pump configured to receive at least a portion of the therapeutic fluid from the reservoir and deliver the portion of the therapeutic fluid to a patient, the pump comprising an actuator that is movable through a pump stroke, wherein the actuator makes a noise associated with the pump stroke at an end of the pump stroke;
a sensor configured to detect a characteristic of the noise; and
a processor configured to determine that the characteristic of the noise indicates the reservoir is empty or near empty, wherein the characteristic of the noise comprises at least one of an amplitude of the noise, a frequency of the noise, and a duration of the noise.
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Abstract
A medical device system comprises a reservoir configured to store a therapeutic fluid and a medical pump configured to deliver the therapeutic fluid from the reservoir to a patient. The system also comprises a sensor that can detect a characteristic associated with the pump and a processor to determine if the characteristic detected indicates the reservoir is empty or near empty. The characteristic may comprise a characteristic of a noise made by an actuator within the pump at the end of a pump stroke.
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Citations
20 Claims
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1. A medical device system comprising:
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a reservoir configured to store a therapeutic fluid; a medical pump configured to receive at least a portion of the therapeutic fluid from the reservoir and deliver the portion of the therapeutic fluid to a patient, the pump comprising an actuator that is movable through a pump stroke, wherein the actuator makes a noise associated with the pump stroke at an end of the pump stroke; a sensor configured to detect a characteristic of the noise; and a processor configured to determine that the characteristic of the noise indicates the reservoir is empty or near empty, wherein the characteristic of the noise comprises at least one of an amplitude of the noise, a frequency of the noise, and a duration of the noise. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A medical device system comprising:
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means for storing a therapeutic fluid; means for delivering at least a portion the therapeutic fluid received from the means for storing the therapeutic fluid, the means for delivering the therapeutic fluid comprising means for actuating the fluid and to provide a pump stroke, wherein the means for actuating the fluid makes a noise associated with the pump stroke at an end of the pump stroke; means for detecting a characteristic of the noise; and means for determining that the characteristic of the noise indicates the means for storing the therapeutic fluid is empty or near empty, wherein the characteristic of the noise comprises at least one of an amplitude of the noise, a frequency of the noise, and a duration of the noise. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A method comprising:
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delivering, by a medical pump of a medical device, at least a portion of therapeutic fluid received from a reservoir of the medical device, the medical pump comprising an actuator that is movable through a pump stroke, wherein the actuator makes a noise associated with the pump stroke at an end of the pump stroke; detecting, by a sensor, a characteristic of the noise; and determining, by a processor, that the characteristic of the noise indicates the reservoir is empty or near empty, wherein the characteristic of the noise comprises at least one of an amplitude of the noise, a frequency of the noise, and a duration of the noise. - View Dependent Claims (20)
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Specification