A61M2005/14252

Safety constraints for a control algorithm based drug delivery system

Disclosed are a system, methods and computer-readable medium products that provide safety constraints for an insulin-delivery management program. Various examples provide safety constraints for a control algorithm-based drug delivery system that provides automatic delivery of a drug based on sensor input. Glucose measurement values may be received at regular time intervals from a sensor. A processor may predict future glucose values based on prior glucose measurement values. The safety constraints assist in safe operation of the drug delivery system during various operational scenarios. In some examples, predicted future glucose values may be used to implement safety constraints that mitigate under-delivery or over-delivery of the drug while not overly burdening the user of the drug delivery system and without sacrificing performance of the drug delivery system. Other safety constraints are also disclosed.

Opioid overdose monitoring

An overdose of opioids can cause the user to stop breathing, resulting in death. A physiological monitoring system monitors respiration based on oxygen saturation readings from a fingertip pulse oximeter in communication with a smart mobile device and sends opioid monitoring information from the smart mobile device to an opioid overdose monitoring service. The opioid overdose monitoring service notifies a first set of contacts when the opioid monitoring information.

Event detection for drug delivery system

A drug delivery device may include an Inertial Measurement Unit (IMU) is provided. The IMU may include an accelerometer, a magnetometer, or a gyroscope. Motion parameters may be detected when the drug delivery device is shipped, being prepared for activation for use, or during use. The IMU may provide data indicative of a rapid deceleration, such as when a package containing the drug delivery device is dropped, or some other physical event experienced by the drug delivery device. The drug delivery device may also include internal or external pressure sensors or a blood glucose sensor that may coordinate with the IMU to provide additional feedback regarding the status of the device or user. A controller of the drug delivery device may generate a response depending on the particular parameters being monitored or may change device operational parameters as a result of detected system events.

Cannulas for systems and methods for delivering microdoses of medication

Devices, systems, and methods are provided herein for delivering medication (e.g., insulin) via a wearable pump having a patch-style form factor for adhesion to a user's body. The reusable pump may be coupled to a disposable cap housing a microdosing system for delivering precise, repeatable doses of medication to a cannula configured to deliver medication to a target infusion area beneath the user's outer skin layer. The system further may include an applicator for inserting the cannula into the user's skin and/or applying an adhesive pad to the skin.

INSERTION DEVICE
20230027522 · 2023-01-26 ·

Embodiments relate to an insertion device that includes: a plunger coupled with a lock collar. The insertion device houses contents including: a striker including self-locking striker snap arm(s) where the striker is kept from firing by a striker spring captured between the plunger and the striker when the insertion device is in a cocked position; a sensor assembly; and a needle carrier that holds a piercing member, the needle carrier captured between the striker and a needle carrier spring where a self-releasing snap(s) keeps the needle carrier cocked, where the plunger prevents the self-releasing snap(s) from repositioning and releasing the needle carrier. The striker fires the needle carrier such that the self-locking striker snap arm(s) are positioned to allow the striker to snap down. The needle carrier is then retracted when the user releases the plunger and the piercing member is encapsulated within the insertion device.

LIQUID MEDICINE INJECTION DEVICE HAVING DRIVING TIME SYMMETRIZATION ALGORITHM APPLIED THERETO, DRIVING TIME SYMMETRIZATION METHOD, AND RECORDING MEDIUM THEREOF
20230013255 · 2023-01-19 ·

Provided are a drug injection device including a pump module having a symmetrized driving time, a driving time symmetrization method, and a recording medium thereof. The drug injection device includes: a pump module including a shaft performing a linear reciprocating motion in one direction; a rotary part including a first end connected to the shaft and a second end which rotates and reciprocates according to the linear reciprocating motion; at least one sensor configured to obtain contact time information about a time when the at least one sensor comes into contact with the second end; and a controller configured to determine a driving time of the pump module based on the contact time information and determine an additional driving time of the pump module based on the driving time.

SUBSTANCE OVERDOSE DETECTION AND TREATMENT DEVICE
20230012788 · 2023-01-19 ·

A drug overdose detection apparatus that is configured to measure the blood oxygen level of a user and upon detection in a drop thereof provide administration of a substance to counteract the drug overdose. The present invention includes a housing that is configured to be worn by a user has an interior volume. Disposed in the interior volume of the housing is a substance administration assembly wherein the substance administration assembly includes a syringe member, a plunger member and a plunger driver. A motor is operably coupled to the plunger driver and facilitates movement thereof. A spring needle assembly is operably coupled to the substance administration assembly and includes a spring biased needle that is operable to inject into a patient so as to inject the substance. The present invention further includes an audio alarm and transceiver configured to provide alerts and transmit signals.

FLUID DELIVERY AND INFUSION DEVICES, AND METHODS OF USE THEREOF
20230218823 · 2023-07-13 ·

A medical device comprising an infusion device comprising a fluid reservoir to contain a therapeutic fluid and a transcutaneous access tool fluidly coupled to the fluid reservoir, the transcutaneous access tool configured to deliver the therapeutic fluid subcutaneously to a patient; wherein the infusion device operates in a stand-by mode prior to the therapeutic fluid being introduced into the fluid reservoir; wherein the infusion device operates to deploy the transcutaneous access tool within a predetermined deployment time period upon filling the fluid reservoir to a predetermined fill level with the therapeutic fluid.

Device for subcutaneous delivery of fluid medicament

An improved device delivers a fluid medicament to the subcutaneous tissue of a user. The device is better suited for patients with Parkinson's Disease and other central nervous system disorders, than conventional infusion devices. The device can include a reusable part including a drive component (e.g., motor) and control electronics and a disposable part including a medicament reservoir. Medicament can be evacuated from the medicament reservoir by a plunger assembly that includes a plunger attached to a lead screw that is rotated by a nut, all within the disposable part. The device can be fluidically coupled with the tissue via a flexible cannula. Various embodiments relate to an improved cannula insertion mechanism that delivers the cannula under a force applied by a spring. Various embodiments relate to improved filling of the device, for example, using a vial adapter and an automated filling station.

Injector needle insertion retraction assembly
11554213 · 2023-01-17 · ·

A needle insertor for a medicament delivery device is presented having a driver having a first part movably arranged within the case and a second part connected to the base, a needle assembly movably held by the first part in the case, a rotator arranged in the case and configured to engage the first part for moving the driver, an energy accumulation member configured to interact with the rotator for applying a rotational force on the rotator, a movable stop arranged on the base and configured to interact with the rotator for preventing the rotator from rotating. The first part has a first position where the needle assembly is held inside the case, a second position where the needle portion is positioned outside the case after being moved to pass through the injection site end, and a third position where the needle portion is positioned inside the case.