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The HMS Plus instrument is a microprocessor based, multichannel clot timing system with automated syringe handling for pipetting blood into single use cartridges. It performs in vitro heparin sensitivity evaluations, heparin assays, and activated clotting times.

The HMS Plus instrument is a microprocessor based, multichannel clot timing system with automated syringe handling for pipetting blood into single use cartridges. It performs in vitro heparin sensitivity evaluations, heparin assays, and activated clotting times. Hardware modifications addressed in this submission are a direct response to the obsolescing of several major hardware components including the Print Circuit Board, the ADU Controller and the Printer. The HMS software has also been modified to run on Windows CE 5.0: A complete system verification and software verification of all requirements have been performed. The Display Adapter Hantronix PCBA and Power Interconnect PCBA have been incorporated into the Interface PCBA to reduce interconnects and have a more reliable device. The Common Processing Platform has been used to replace the Freescale HC11. A complete ADU software verification of all requirements has been performed. A new Printer has been selected that will work with the new Off the Shelf Computer PCBA. The voltage of the printer has been reduced from 24 V to 7V. The Operators Manual and Device labels have been updated to reference the IEC 61010-1: 2001, 2nd Edition standard.

For determining in vitro individual responses to heparinization using whole blood on the HMS Plus instrument. For in Vitro Diagnostic Use.

The modification to the current device is to replace old USP heparin with revised USP heparin. The heparin concentrations have been increased by 13.6% for heparinized channels (ch 1 & 2 and ch 3 &4). The source of the heparin remains porcine.

The HMS Plus instrument is a microprocessor based, multichannel clot timing system with automated syringe handling for pipetting blood into single use cartridges. It performs in vitro heparin sensitivity evaluations, heparin assays, and activated clotting times.

The HMS Plus instrument is a microprocessor based, multichannel clot timing system with automated syringe handling for pipetting blood into single use cartridges.

The Heparin Dose Response (HDR) controls are used to verify the performance of the HDR cartridges and the HMS Plus instrument.

The HDR Control set is an in vitro diagnostic device. The primary function is to identify if each pair of heparinized channels of the HDR cartridge has normal or abnormal function by measuring if the clotting time ratios between heparinized and unheparinized channels are within or outside a specified range. HDR control 1 is used to verify that channels 1,2, 5 and 6 of the HDR cartridge are functioning correctly. HDR control 2 is used to verify that channels 3, 4, 5 and 6 of the HDR cartridge are functioning correctly. The HDR controls are single use, non-sterile, point of care, in-vitro diagnostic plasma controls for use with the HMS Plus instrument.

The Heparin Dose Response (HDR) controls are used to verify the performance of the HDR cartridges and the HMS Plus instrument.

The HDR Control set is an in vitro diagnostic device. The primary function is to identify if each pair of heparinized channels of the HDR cartridge has normal or abnormal function by measuring if the clotting time ratios between heparinized and unheparinized channels are within or outside a specified range. HDR control 1 is used to verify that channels 1,2, 5 and 6 of the HDR cartridge are functioning correctly. HDR control 2 is used to verify that channels 3, 4, 5 and 6 of the HDR cartridge are functioning correctly. The HDR Control set is similar in design and use (vial size and reconstitution method) to the existing liquid controls being used in the HMS platform. The HDR controls are single use, non-sterile, point of care, in-vitro diagnostic plasma controls for use with the HMS Plus instrument.

The heparin dose response cartridge is intended for determining in vitro individual responses to heparinization using whole blood on the HMS or HMS Plus instruments.

The Heparin Dose Response (HDR) cartridge is an in vitro diagnostic test. The HDR cartridge uses fresh whole blood for determining in vitro individual responses to heparinization based on a target activated clotting time (ACT). The cartridge is for use in the HMS or HMS Plus (Hemostasis Management System) instruments.

The Rapidpoint Accent is an accessory to the Rapidpoint Coag Analyzer. When used in conjunction with the Rapidpoint Coag and the Heparin Management Panel Cards (Heparin Management Test, Heparin Titration Test, and Protamine Response Test) Cards, its intended use is to generate information on heparin management.

The Rapidpoint Accent is an accessory to the Rapidpoint Coag Analyzer. The Analyzer is a point of care instrument designed to determine hemostatic parameters of blood and plasma samples. The Accent works in conjunction with the Analyzer to provide dosing information for heparin and protamine during cardiopulmonary bypass procedures. The Accent determines this information by combining test results from the Analyzer with patient data entered into the Accent by the user. During the course of a CPB procedure, the user must perform a series of tests using the Analyzer, The test cards that must be used include the Heparin Management Test (HMT™), the Heparin Titration Test (HTT™), and the Protamine Response Test (PRT™). The results of these tests provide the Accent with information on how the patient's blood will respond to the addition of Heparin and Protamine. The Accent uses this information to calculate recommended dosages of Heparin or Protamine to be given to the patient to reach a target value entered into the Accent by the user. The target value may be either a heparin concentration or a clotting time. The Accent includes an eight-inch diagonal touch screen for user interface and a built in printer for recording test results. The case is designed with a protective front cover that doubles as a holder for the Analyzer when the system is in use. The Accent is powered by an internal power supply that also orovides power to the Analyzer. The Accent and the Analyzer communicate through a serial cable that must be plugged into the Analyzer and is permanently attached to the Accent. The HTT card provides a method to determine the response of a patient to heparin. Before heparin administration, baseline Heparin Management Test (HMT) and HTT values are determined for the patient with the Rapidpoint" Coag (formerly TAS) Analyzer. Using these values, the Rapidpoint ACCENT will calculate the dose of heparin necessary to produce a desired concentration or effect of this drug in the patient's blood. Both citrated or noncitrated whole blood samples can be used for these tests. The test card has a magnetic stripe on the back, which encodes lot specific information such as number, expiration date, and mathematical factors specific to that lot. A room temperature test card is removed from the pouch and the card is passed through the card reader of the instrument to program the instrument to run a test. The instrument instructs the operator to insert a test card and then requests patient and sample information. The card is warmed and the operator is prompted to add a drop of blood to the card sample well. The sample is drawn into the card and rehydrates the reagent, which begins the reaction. As the reaction proceeds and clotting begins, the movement of the particles decreases, and the instrument signals the clotting time. The PRT card is made for use with citrated or noncitrated blood samples containing heparin. The PRT is a modification of the HMT card and consists of a single test card that contains calcium chloride to initiate coagulation in citrated blood samples, celite as activator, stabilizers. and protamine sulfate. The test results will depend on heparin activity in the blood, which in turn depend on the levels of heparin, of coagulation factors, and of heparin inhibitors in the sample. The higher the level of heparin activity, the greater the protamine sulfate dosage required to inhibit it. The results of the PRT card are used with values produced on HMT cards with samples taken just before protamine administration, to determine the response of the individual to the agent. The values are stored by the ACCENT, which performs the calculations to determine dose recommended to neutralize the heparin present in the patient. The test card has a magnetic stripe on the back, which encodes lot specific information such as number, expiration date, and mathematical factors specific to that lot. A room temperature test card is removed from the pouch and the card is passed through the card reader of the instrument to program the instrument to run a test. The instrument instructs the operator to insert a test card and then requests patient and sample information. The card is warmed and the operator is prompted to add a drop of blood to the card sample well. The sample is drawn into the card and rehydrates the reagent, which begins the reaction. As the reaction proceeds and clotting begins, the movement of the particles decreases, and the instrument signals the clotting time.