76 results about "Rate of infusion" patented technology

An infusion rate adjusting device for drug solution injectors comprises a tubular flow control unit including plural check valves of different opening pressures, and means for selecting one of said check valves to adjust an infusion rate of the drug solution. The infusion rate adjusting device is simple in operation to set out an infusion rate of the drug solution and is considerably reduced in the production cost.

A patient hydration system and method wherein hydration fluid is administered to a patient and the patient's urine output is measured either by weight or some other suitable way. A controller is responsive to the patient's urine output measurement and configured to control the infusion rate to hydrate the patient based on the patient's urine output. The controller also detects abnormal patient urine output measurements and initiates corrective action in response.

A method and apparatus for carrying our thermal ablation of target tissue is disclosed. The apparatus includes an RF ablation device having a multi-electrode electrode assembly designed to be deployed in target tissue, defining a selected-volume tissue region to be ablated, and having infusion channels for infusing a liquid into the target tissue during the ablation process. A control unit in the apparatus is operably connected to an RF energy source, for controlling the RF power level supplied to the electrodes, and to an infusion device, for controlling the rate of infusion of a liquid through the device into the tissue. During both electrode deployment and tissue ablation, impedance and or temperature measurements made within the tissue are used to control the RF source and infusion device, for optimizing the time and extent of tissue ablation.

Implantable osmotic pump devices and systems include multiple osmotic pumps and / or semipermeable membranes to extend the useful life cycle and functionality of the drug delivery system. Use of an implantable system including multiple implantable osmotic pumps allows different drugs to be administered from the same implanted system. One or more of the semipermeable membranes of the system may be initially sealed by an overlying impermeable membrane upon implantation of the system into the patient. When the patient develops a tolerance to a first drug or to a first dose of the first drug, the impermeable membrane may be breached, to expose the underlying semipermeable membrane to the osmotic pressure of the patient at the implant site. This causes the infusion rate to increase, thereby providing the patient with the needed relief and / or other desired therapeutic effect. In the case of a multiple pump system, breaching an impermeable membrane may cause the infusion of a second drug. The second drug may potentiate a therapeutic effect (such as an analgesic effect) of the first drug, as is the case with Sufentanil and Clonidine.

Methods and systems for infusing a cooled infusate to a target location in a patient are described. A temperature of the blood and infusate admixture upstream of the catheter as well as at other locations along the catheter may be monitored and a feedback system utilized to control the volume, temperature, and / or infusion rate of the infusate so as to achieve a predetermined temperature at the target location. Control may also be based on the patient's native vessel flow rate. The system may monitor or calculate hematocrit upstream of the catheter and adjust infusion so as to provide sufficient oxygenation of the blood and infusate admixture. The system may also monitor reflux of the infusate past a distal end of the catheter and reduce infusion upon the detection of reflux.

A System manages IV pumps so that clinicians automatically receive alerts, decisions, and actions required to maintain a patient IV medication therapy according to a prescribed treatment protocol. An infusion pump monitoring system, includes an acquisition processor for acquiring fluid infusion parameters comprising a patient identifier, infusion fluid identifier and a rate of fluid infusion, for administration of an infusion fluid to a patient at a point of care using an infusion pump. The system also includes a repository of patient medical record information. A fluid infusion monitor uses acquired fluid infusion parameters for automatically searching a patient medical record in the repository for information concerning rate of fluid infusion of a particular infusion fluid and determining if a rate of a previously administered dose of the particular infusion fluid was lower than a rate indicated in the fluid infusion parameters. An interface processor automatically initiates generation of a message indicating a potential adverse reaction to the particular infusion fluid in response to a determination of a lower rate being employed for previously administering the particular infusion fluid.