Abstract: Devices, systems, and techniques for programming drug delivery are described. Such techniques may account for diffusion and mixing of drug within the fluid or allow for more flexible programming options. In one example, a method may include determining one or more fluid delivery parameters (e.g., volume, flow rate, or period of time) for a fluid that is a mixture of two other fluids. The determination may be based on one or more fluid delivery parameters of the two other fluids and/or a concentration profile representing the mixing between the two other fluids. In other examples, drug delivery programming may be facilitated by the selection of various patterns and steps of drug delivery. The system may track volume of delivered fluid to maintain desired dosing of the patient.

Abstract: An apparatus for storing data records associated with a medical monitoring event in a data structure. An implanted device obtains data and stores the data in the data record in a first data structure that is age-based. Before an oldest data record is lost, the oldest data record may be stored in a second data structure that is priority index-based. The priority index may be determined by a severity level and may be further determined by associated factors. The implanted device may organize, off-load, report, and/or display a plurality of data records based on an associated priority index. Additionally, the implanted device may select a subset or composite of physiologic channels from the available physiologic channels based on a selection criterion.

Abstract: Methods for storing data records associated with a medical monitoring event in a data structure. An implanted device obtains data and stores the data in the data record in a first data structure that is age-based. Before an oldest data record is lost, the oldest data record may be stored in a second data structure that is priority index-based. The priority index may be determined by a severity level and may be further determined by associated factors. The implanted device may organize, off-load, report, and/or display a plurality of data records based on an associated priority index. Additionally, the implanted device may select a subset or composite of physiologic channels from the available physiologic channels based on a selection criterion.

Abstract: Techniques for automatically identifying medical devices, e.g., implantable medical device, using wireless communications in order to communicate with the medical devices are described. For instance, a programming system securely discovers a set of medical devices which have the capacity to communicate using wireless communication links. The programming system may then apply one or more search heuristics to identify a set of discovered medical devices that are likely to be a medical device with which a user desires to interact. When the user selects the desired one of the identified medical devices, the programming system launches a device interaction application associated with the desired medical device. The user may use the device interaction application to interact with the desired medical device.

Abstract: An implantable medical device is capable of delivering therapeutic output to a patient. A controller, programmable by a medical professional, is operatively coupled to the implantable medical device to, in part, program the therapeutic output to be delivered to the patient. The controller has an interface allowing the medical professional to graphically select an amount of the therapeutic output to be delivered to the patient in at least one of a series of discrete timer intervals. The graphic selection may be aided by the use of a light pen or other pointing device to sketch the infusion pattern. Computer programs using algorithms may be utilized to translate the information inputted through the light pen into an infusion program.

Abstract: Devices, systems, and techniques for programming drug delivery are described. Such techniques may account for diffusion and mixing of drug within the fluid or allow for more flexible programming options. In one example, a method may include determining one or more fluid delivery parameters (e.g., volume, flow rate, or period of time) for a fluid that is a mixture of two other fluids. The determination may be based on one or more fluid delivery parameters of the two other fluids and/or a concentration profile representing the mixing between the two other fluids. In other examples, drug delivery programming may be facilitated by the selection of various patterns and steps of drug delivery. The system may track volume of delivered fluid to maintain desired dosing of the patient.

Abstract: Devices, systems, and techniques for programming drug delivery are described. Such techniques may account for diffusion and mixing of drug within the fluid or allow for more flexible programming options. In one example, a method may include determining one or more fluid delivery parameters (e.g., volume, flow rate, or period of time) for a fluid that is a mixture of two other fluids. The determination may be based on one or more fluid delivery parameters of the two other fluids and/or a concentration profile representing the mixing between the two other fluids. In other examples, drug delivery programming may be facilitated by the selection of various patterns and steps of drug delivery. The system may track volume of delivered fluid to maintain desired dosing of the patient.

Abstract: A medical device senses electrical activity within a patient and, in some embodiments, delivers stimulation to the patient via a plurality electrical paths, which include electrodes and associated conductors of one or more leads. The medical device determines whether a symptomatic event, such as a seizure, is detected based on the sensed electrical activity, and measures the impedance of one or more of the paths in response to the determination. If the medical device identifies a dysfunctional electrical path based on the measured impedance, the device may, as examples, disable the dysfunctional electrical path, or modify a stimulation or sensing program to not use the dysfunctional electrical path. In this manner, the medical device may identify inaccurate symptomatic event detection and, where the device delivers a therapy in response to such detection, such as stimulation via the electrical paths, avoid inappropriate therapy delivery.

Abstract: A programming system for an electronic medical device (EMD) is described. The programming system, as described in this disclosure, comprises a host computer, such as a general purpose computer in an in-clinic computer network, executing a software platform that provides an operating environment with which a user can interact to program an EMD. The software platform invokes monitoring software that ensures that the host computer satisfies criteria for safe operation of the operating environment, e.g., ensures that the host computer meets the minimum operating conditions required for reliable operation of the operating environment. In particular, the monitoring software may monitor system faults that occur during operation, as well as ensure that criteria for safe operation are satisfied prior to initiating the operating environment.

Abstract: Various embodiments concern reprogramming an implantable medical device by an external programmer to operate using a second program version, the second program version replacing a first program version in controlling operation of the implantable medical device. It can be determined whether the implantable medical device will be able to operate using the first program version to deliver therapy according to the first program version if the implantable medical device was to revert back to using the first program version. The implantable medical device can then revert to operational programming from the second program version to the first program version, the first program version saved in memory of the implantable medical device as a restore point while the implantable medical device operates according to the second program version between the reprogramming and reverting of the implantable medical device.

Abstract: The disclosure relates to a system that displays posture state information, physiological conditions of a patient on an avatar or other graphical representation of a human body, and therapy parameter information to facilitate the programming of therapy that is delivered to a patient. In some examples, the system may include an implantable medical device (IMD) that delivers therapy to a patient and incorporates a posture state module that detects a posture state engaged by the patient to determine the therapy delivered to the patient. An external programming device may communicate with the IMD, e.g., in real-time, to display the posture state of the patient as well as therapy parameters and physiological conditions associated with the posture state of the patient. The external programming device may receive adjustment input from the clinician to adjust one or more therapy parameters for therapy delivered to a patient in a specific posture state.

Abstract: Methods and apparatus for storing data records associated with a medical monitoring event in a data structure. These include initiating loop recording in an implantable medical device upon determination of a neurological event, wherein loop recording comprises storing a data record of a plurality of data records in a data structure, the plurality of data records representing information about determined neurological events. Methods and apparatus can further include determining a priority index for the plurality of data records based on severity levels of the determined neurological events and replacing older data records of the plurality of data records on the data structure with new data records according to the priority index, wherein the new data records selectively replace those data records in the data structure having the lowest associated priority index.

Abstract: Techniques are described for displaying a representation of a supplemental bolus and a representation of programmed doses of a therapy schedule for an implantable fluid delivery device with a programmer device. In one example, a device includes a user interface to present a graphical representation of doses of fluid to be delivered to a patient via an implantable fluid delivery device and a processor that controls the user interface to simultaneously present a first graphical representation of a supplemental bolus to be delivered by the implantable fluid delivery device and a second graphical representation of programmed doses of a therapy schedule of the implantable fluid delivery device, wherein at least a portion of the programmed doses of the therapy schedule follows delivery of the supplemental bolus by the implantable fluid delivery device. A user of the device may determine whether the representations indicate an excessive dosage risk to the patient.

Abstract: Devices, systems, and techniques for programming drug delivery are described. Such techniques may account for diffusion and mixing of drug within the fluid or allow for more flexible programming options. In one example, a method may include determining one or more fluid delivery parameters (e.g., volume, flow rate, or period of time) for a fluid that is a mixture of two other fluids. The determination may be based on one or more fluid delivery parameters of the two other fluids and/or a concentration profile representing the mixing between the two other fluids. In other examples, drug delivery programming may be facilitated by the selection of various patterns and steps of drug delivery. The system may track volume of delivered fluid to maintain desired dosing of the patient.

Abstract: Methods and apparatus for storing data records associated with a medical monitoring event in a data structure. These include initiating loop recording in an implantable medical device upon determination of a neurological event, wherein loop recording comprises storing a data record of a plurality of data records in a data structure, the plurality of data records representing information about determined neurological events. Methods and apparatus can further include determining a priority index for the plurality of data records based on severity levels of the determined neurological events and replacing older data records of the plurality of data records on the data structure with new data records according to the priority index, wherein the new data records selectively replace those data records in the data structure having the lowest associated priority index.

Abstract: A programmer device includes an interface that communicates with an implantable fluid delivery device and a user interface that displays a representation of a portion of the implantable fluid delivery device and displays an indication of a location of fluid within the implantable fluid delivery device during a delivery phase, e.g., a priming or bridging phase. The user interface may display a representation of progress of the delivery phase. The user interface may display the indication of the location of the fluid within internal tubing of the implantable fluid delivery device or within a catheter of the implantable fluid delivery device. The programmer device may display the representation of the progress of the delivery phase as a simulation of the delivery phase or during the actual delivery phase of the implantable fluid delivery device. A user may therefore observe a location of fluid corresponding to progress of the delivery phase.

Abstract: An expiration time of a therapeutic fluid delivered by an implantable fluid delivery device is employed to calculate a fill volume and determine a refill interval for the fluid. The expiration time of the therapeutic fluid may be based on or dictated by a stability time set by the manufacturer of the therapeutic fluid, a clinician treating a patient to whom the fluid is to be delivered, the manufacturer of the device delivering the fluid, or combinations thereof.

Abstract: Methods and apparatus for storing data records associated with a medical monitoring event in a data structure. These include initiating loop recording in an implantable medical device upon determination of a neurological event, wherein loop recording comprises storing a data record of a plurality of data records in a data structure, the plurality of data records representing information about determined neurological events. Methods and apparatus can further include determining a priority index for the plurality of data records based on severity levels of the determined neurological events and replacing older data records of the plurality of data records on the data structure with new data records according to the priority index, wherein the new data records selectively replace those data records in the data structure having the lowest associated priority index.

Abstract: Methods of generating an extended cluster are disclosed. A first cluster including data representative of a first signal indicative of an abnormal physiological symptom is generated. A second signal is detected as representing a second abnormal physiological symptom and the second abnormal physiological symptom continues after the first abnormal physiological symptom ends. An extended cluster including the data from the first signal and the second signal is generated that extends from the time when the first abnormal physiological symptom occurs to the time when the second abnormal physiological symptom ends. The first and the extended cluster may include data of both the first and second signals the entire period of the clusters. If desired, the first signal or the second signal may be provided from a sensor implanted in a patient's brain tissue.