112 results about "Drugs infusion" patented technology

A system and method for applying electrical stimulation or drug infusion to nervous tissue of a patient to treat epilepsy, movement disorders, and other indications uses at least one implantable system control unit (SCU) (110), including an implantable signal/pulse generator (IPG) and one or more electrodes (152, 152′). The IPG is implanted in the mastoid area (143) of the skull (140) and communicates with at least one external appliance (230), such as a Behind-the-Ear (BTE) unit (100). In a preferred embodiment, the system is capable of open- and closed-loop operation. In closed-loop operation, at least one SCU includes a sensor, and the sensed condition is used to adjust stimulation parameters.

Provided is a wearable, self-contained drug infusion or medical device capable of communicating with a host controller or other external devices via a personal area network (PAN). The medical device utilizes a PAN transceiver for communication with other devices in contact with a user's body, such as a physiological sensor or host controller, by propagating a current across the user's body via capacitive coupling. The wearable nature of the medical device and the low power requirements of the PAN communication system enable the medical device to utilize alternative energy harvesting techniques for powering the device. The medical device preferably utilizes thermal, kinetic and other energy harvesting techniques for capturing energy from the user and the environment during normal use of the medical device. A system power distribution unit is provided for managing the harvested energy and selectively supplying power to the medical device during system operation.

Minimizing improper dosage of a drug admixture (including a single primary drug component and at least one second drug component). For each drug component in the drug admixture, receiving a name of the drug component along with its dosage unit, a maximum dose warning level and a maximum concentration warning level. Receiving a concentration for each of the single primary drug component and the at least one secondary drug component; and a dose setting of only the primary drug component. Automatically calculating a dose of each of the at least one secondary drug component. Generating an alert when: (i) the received dose setting of the primary drug component or calculated dose setting of the at least one secondary drug component exceeds the dose warning level; or (ii) the received concentration of the primary drug component or the at least one secondary drug component exceeds the concentration warning level.

An automatic injection device includes a drive mechanism and a sensor used to determine an internal characteristic such as a force or internal pressure generated during an injection process. This characteristic is then used as a control parameter by a microprocessor or controller to determine the exit pressure of the fluid expelled by the device. This exit pressure is then used to identify the kind of tissue in which the injection is being introduced.

A method and system for objectively scoring intra-operative pain during general anaesthesia based on the patient's mean arterial pressure and heart rate. The index is used for closed-loop control of the intra-operative analgesia through adjustment of the drug infusion level according to fuzzy logic. It is further displayed along with other components of anaesthesia and important patient data on a monitoring display for presentation to medical staff.

A drug infusion assembly comprises a drug delivery device arranged to adhere to a patient's skin and includes a reservoir that holds the drug, a cannula that delivers the drug to the patient, and a pump that causes the drug to flow to the cannula. The assembly further includes a monitor device for providing information about the operation of a drug delivery device. The monitor device includes a housing arranged to be attached to and detached from the drug delivery device, a sensor that senses the operation of the drug delivery device and generates an activation signal, a clock mechanism that generates a time signal, a memory that receives and stores the activation signal and the time signal and creates an information packet coordinating the time signal and the activation signal, an interrogator that interrogates the memory such that the memory generates a memory signal in response thereto, and a responder that receives the memory signal and generates a response.

The present invention comprises a security system integral with a sedation and analgesia system. The invention includes a computer assisted IV drug infusion administration device coupled with a secure user interface, or other security means, that can restrict and monitor user access to prevent unauthorized or improper use of the device. The system can also provide varying levels of access to the device so that different users may have different levels of access to system operations. The variety of access levels may prevent accidental or intentional misuse of the drug delivery system, while still permitting access to the required functionality. Data, such as usage statistics and procedural events associated with drug delivery, may be recorded in association with a user's personal identification information to help identify training needs and to identify possible misuse of access information.

Disclosed is a medical infusion device, such as an externally worn insulin pump, capable of being in remote communication with a controller or data acquisition unit such as a blood glucose meter. The disclosed medical infusion device includes a dual frequency antenna to facilitate communication with the remote device and the antenna is mounted using a spring-design that inhibits transmission of vibration to the antenna.

A system and method for infusing a drug under continuous positive pressure (such as convection enhanced deliver) to a target tissue to be treated is particularly useful for post-resection anticancer drug therapy. The system comprises a drug infusion catheter having an expandable device which is expanded within the target tissue such that the target tissue conforms to an outer surface of the expandable device, thereby creating a form of seal around the target volume in order to maintain an effective drug pressure gradient within the target tissue. The system further comprises a sensor to measure a parameter which can be correlated to the degree of conformance between the target tissue and the outer surface of the expandable device. The sensor is coupled to a feedback control system to determine whether there is a loss of conformance, and to adjust the expansion of the expandable device in order to maintain good conformance.

Described is drug infusion device configure to maintain its intended drug delivery rate by monitoring atmospheric effects. The device may include one or more vents that permit the passage of gas between the exterior and interior of the device's housing. The device may also include one or more pressure and/or temperature sensors, the readings from which may be used to determine malfunctions in the venting of the device and/or changes in pressure that could cause the unintended over-delivery or under-delivery of medication.

An infusion set has an adhesively secured main hub, and a slidable top cover, needle hub and angled or cantilevered needle that can be used for performing an intradermal needle insertion precisely targeting the upper 3 mm of skin surface, for example, one that substantially duplicates the Mantoux insertion technique, for injecting into the intradermal layers of skin, while maintaining a degree of comfort to the user. By sliding the top cover, the cantilevered needle is loaded and released or the angled needle is slid into an insertion site, while flexible arms and adhesive are used to stretch and/or flatten a skin surface, or otherwise create skin tension, at the insertion site.

Disclosed is a medical infusion device, such as an externally worn insulin pump, capable of being in remote communication with a controller or data acquisition unit such as a blood glucose meter. The disclosed medical infusion device includes a dual frequency antenna to facilitate communication with the remote device and the antenna is mounted using a spring-design that inhibits transmission of vibration to the antenna.

The invention concerns a flow regulator, made of a stack of 3 plates, respectively a top plate including a flexible membrane (1), a middle plate (2) with pillars and through holes and a bottom plate (3) with fluidic ports, micro channels and through holes (8,9,12). The principle is based on the deformation of the membrane due to the pressure of the liquid. The membrane goes in contact with the pillars of the middle plate, obstructing gradually the through holes of the pillars. The device is designed to keep the flow constant in a predefined range of pressure. The device is dedicated to ultra low flow rate up to 1 ml per day or below, typically for drug infusion. Plastic flow regulators comprise preferably several independent valves coupled in parallel. The membrane plate is therefore made of several flexible membranes obstructing gradually the flow by increasing the pressure. Stress limiters are used to avoid plastic deformation of the membrane. For implanted pump, the use of a flow regulator instead of a flow restrictor has several advantages, including the possibility to reduce significantly the reservoir pressure and to generate directly the pressure during the pump filling by using an elastic drug reservoir.