Abstract: Some embodiments an infusion pump system can be used to determine a user's total insulin load (TIL) that provides an accurate indication of the insulin previously delivered to the user's body which has not yet acted. In particular embodiments, the TIL can account for both the bolus deliveries and the basal deliveries that have occurred over a period of time. Such information may be useful, for example, when the infusion pump is operated in conjunction with a continuous glucose monitoring device.

Abstract: Some embodiments an infusion pump system can provide a suggested bolus dosage based on particular parameters (e.g., the user's recent blood glucose characteristics, food intake data, an amount of insulin already delivered to the user which has not yet acted on the user, or other factors). In some circumstances, the infusion pump system can receive information indicative of the user's blood glucose level and suggest an insulin bolus dosage that is at least partially dependent upon the recent rate of change in the user's blood glucose level. Such a feature can be helpful to a user when the infusion pump is operated in conjunction with a glucose monitoring device because the suggested bolus dosage can be at least partially based on recent data indicative of the user's blood glucose level.

Abstract: An infusion pump unit includes a housing sized to allow the pump unit to be carried as a portable unit. The housing contains a controllable pumping system for pumping fluid. The pump actuator is lighter, smaller, quieter and less power consuming.

Abstract: Some embodiments of an infusion pump system may be configured to detect when at least one component of the pump system is exposed to an impact above a threshold level. In particular embodiments, the infusion pump system can be equipped with an impact detection system that can sense when an impact above the threshold level has occurred to the pump device, which thereby enables the infusion pump system to initiate appropriate patient safety countermeasures.

Abstract: Some embodiments of a wearable, disposable medicine dispensing device may include a piston rod that is advanced to dispense medicine from the device. A rotational motor may be coupled to a drive mechanism so as to carry out a certain number of revolutions and thereby displace the piston rod by a desired distance. Such a device can be used in a method of dispensing liquid medicine.

Abstract: Some embodiments of a wearable infusion pump system can include a pump device having a drive system to dispense a medicine to a user, an activity sensor that detects a possible change in an activity level of the user, and a controller to activate the drive system to dispense the medicine to the user. The controller device can query the user to indicate whether a detected activity level of the user represents an actual change in the activity level of the user. The controller device can alter the medicine dispensing schedule based on the user indicated changes in activity level.

Abstract: Some embodiments of a portable medical device, such as an infusion pump, can receive an external reference signal (e.g., a radio, cellular and/or satellite signal) to provide an automatic time-setting and maintenance operation. In these circumstances, the medical device can maintain accurate time and date information even in the event of a power interruption, a time-zone change and/or an internal clock error, for example. In this manner, the portable medical device provides safe operation and added convenience to the user.

Abstract: Some embodiments of an infusion pump system may include an occlusion sensor that can be used to detect when an occlusion exists in the fluid path between the medicine reservoir and the infusion site on the user's skin. Such an occlusion may occur, for example, when the fluid flow line (e.g., a cannula, infusion set tubing, or the like) is kinked. If the medicine dispensation path to the user is occluded, the user may receive no dosage or a lower dosage of the medicine. As such, the occlusion sensor can be used to indicate when the fluid is flowing or not flowing, thereby permitting the infusion pump system to communicate an alarm to the user if an occlusion exists.

Abstract: Some embodiments of an infusion pump system can include a controller in electrical communication with a pump device so as to provide selected dosages of a medicine to a user over a period of time. The infusion pump system can employ a number of power management techniques to reduce the likelihood current drain of a rechargeable battery of the infusion pump system.

Abstract: Some embodiments of an infusion pump system can provide an alarm and user instructions in response to an ambient air pressure change or ambient air temperature that exceeds an alarm limit parameter. In some circumstances, the infusion pump system can be configured to monitor the actual ambient air pressure and temperature around the infusion pump system.

Abstract: Some embodiments of a medical infusion pump system include a pump device and a removable controller device. When the pump device and the removable controller device are removably attached to one another, the components may provide a portable infusion pump unit to dispense medicine to a user. In particular embodiments, the removable controller device includes a user interface to readily provide information, for example, about the operation of the pump.

Abstract: Some embodiments of an infusion pump system may include an illumination instrument that provides the user with an opportunity to illuminate and inspect a targeted location. The illumination instrument can be useful in situations where the ambient lighting is insufficient for the user's inspection needs (e.g., during the night, during presentation or movie in which the lighting is low, or the like). In some embodiments, illumination instrument can be employed to visually inspect one or more components of the pump system, the infusion set, or a combination thereof.

Abstract: Some embodiments of an infusion pump system can be configured to provide improved safety monitoring features so that a user receives proper dosage amounts.

Abstract: Some embodiments of an infusion pump system include an occlusion detection system to detect when an occlusion exists in the fluid path between the medicine reservoir and the infusion site located, for example, on the user's skin. The occlusion detection system can be configured to self-calibrate in a manner that accounts for changes in environmental conditions, such as ambient temperature, pressure, or the like, so that the occlusion detection system provides reliable feedback to a user as to the occluded or non-occluded state of the medicine flow path.

Abstract: A disposable, wearable, self-contained insulin dispensing device includes a housing and an insulin source in the housing that is connected to a catheter for injecting insulin into a user.

Abstract: A wearable insulin dispensing device has features and operation characteristics supporting and easing compliance by the users of the device. For example, the device may provide capabilities of rendering a very specific and well-tuned dosage which may be altered according to the specific development of the individual user.

Abstract: A pump system can include a pump device and a controller device removably attachable to the pump device. The controller device can be reusable, and one or more pump devices can be disconnected and reconnected to the controller device. As such, some pump usage data can be conveniently stored in the pump device itself. In such circumstances, the controller device can receive data related to the pump's history or other usage when the pump device is attached to the controller.

Abstract: Some embodiments of a portable infusion pump system can be configured to adjust the sensitivity of particular detectors or alert systems based (at least in part) on information received from a monitoring device. For example, a glucose monitoring device can communication with an infusion pump assembly used to supply insulin or another medication to a user. In such circumstances, the data received from the monitoring device can be used to adjust the sensitivity of an occlusion detection system.

Abstract: Some embodiments of an infusion pump system may be configured to detect when at least one component of the pump system is exposed to an impact above a threshold level. In particular embodiments, the infusion pump system can be equipped with a drive system detection system configured to detect when one or more components of the drive system are damaged or inoperable.

Abstract: Some embodiments of a medical infusion pump system include a pump device having a flexible pushrod that can adjust from a curved configuration to a generally straight configuration. The flexible pushrod is part of a drive system of the pump device so that the flexible pushrod can be controllably and incrementally advanced toward a medicine reservoir to incrementally dispense the medicine therein. In particular embodiments, the flexible pushrod may comprise an anti-rotation mechanism, an anti-torsion mechanism, or a combination thereof.