Hybrid ambulatory infusion pumps
First Claim
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1. An infusion pump system, comprising:
- a disposable assembly including a medicament reservoir and a multi-pole motor rotor; and
a durable assembly including an energy supply, a motor coil, a sensor configured to sense rotational position of the multi-pole motor rotor, and a processor, operably connected to the energy supply, motor coil and sensor, configured to control power to the motor coil based on the sensed rotational position of the multi-pole motor rotor;
wherein the durable assembly and the disposable assembly are configured to be attached to one another in such a manner that energization of the motor coil causes the multi-pole motor rotor to rotate without direct mechanical coupling or electrical connection.
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Accused Products
Abstract
Ambulatory infusion pumps, durable assemblies, and disposable assemblies, including energy sources, reservoirs, baseplates, and related components therefor, as well as component combinations and related methods.
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Citations
18 Claims
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1. An infusion pump system, comprising:
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a disposable assembly including a medicament reservoir and a multi-pole motor rotor; and a durable assembly including an energy supply, a motor coil, a sensor configured to sense rotational position of the multi-pole motor rotor, and a processor, operably connected to the energy supply, motor coil and sensor, configured to control power to the motor coil based on the sensed rotational position of the multi-pole motor rotor; wherein the durable assembly and the disposable assembly are configured to be attached to one another in such a manner that energization of the motor coil causes the multi-pole motor rotor to rotate without direct mechanical coupling or electrical connection. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method, comprising the step of:
after an infusion pump disposable assembly including a medicament reservoir and a multi-pole motor rotor has been secured to an infusion pump durable assembly, with an energy supply, a motor coil, and a sensor, such that energy from the energy supply is transferred to the disposable assembly without direct mechanical coupling or electrical connection and transformed into mechanical forces that move a plunger within the reservoir and the sensor senses the rotational position of the multi-pole motor rotor, closed-loop controlling rotational speed of the multi-pole motor rotor with a processor based on output from the sensor. - View Dependent Claims (14, 15, 16, 17)
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18. An infusion pump system, comprising:
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a disposable assembly including a medicament reservoir, a baseplate and a multi-pole motor rotor defining an axis of rotation that is perpendicular to the baseplate; and a durable assembly including an energy supply, a motor coil, a sensor configured to sense position of the multi-pole motor rotor, and a processor, operably connected to the energy supply, motor coil and sensor, configured to control power to the motor coil based on the sensed position of the multi-pole motor rotor; wherein the durable assembly and the disposable assembly are configured to be attached to one another in such a manner that energization of the motor coil causes the multi-pole motor rotor to rotate without direct mechanical coupling or electrical connection.
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Specification