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The directCHECK® Whole Blood ACT+ Level 1 (normal) and ACT+ Level 2 (abnormal) Controls are assayed lyophilized whole blood preparations intended for the quality control of quantitative coagulation test: HEMOCHRON® ACT+ assay on the HEMOCHRON® Jr. Signature+ and HEMOCHRON® Signature Elite instruments. The directCHECK® Whole Blood ACT-LR Level 1 (normal) and ACT-LR Level 2 (abnormal) Controls are assayed lyophilized whole blood preparations intended for the quality control of quantitative coagulation test: HEMOCHRON® ACT-LR assay on the HEMOCHRON® Jr. Signature+ and HEMOCHRON® Signature Elite instruments.

The directCHECK® Whole Blood Controls are assayed lyophilized whole blood preparations intended for the quality control of quantitative coagulation tests. The directCHECK® whole blood control material is prepared from animal plasmas to which fixed animal red blood cells have been added. No human-based materials are contained in directCHECK® Whole Blood Controls. The whole blood control material is lyophilized in glass ampoules, and placed into an individual assembly with liquid diluent. When the glass ampoule is broken (activation of the assembly), the diluent rehydrates the lyophilized material, forming a liquid whole blood control.

The HEMOCHRON® Signature Elite™ is a battery operated, hand-held instrument that performs individual point-of-care coagulation tests on fresh or citrated whole blood. The system is intended Incilitiation point coughtton toots of mare coagulation testing. Whole blood test results are displayed as clotting times (in seconds). The HEMOCHRON® Signature Elite™ also displays ulsplayed as clouing times (in socondo). The Hame equivalent values, and the PT INR value. For in vitro Diagnostic Use Only

The HEMOCHRON® Signature Elite™ Whole Blood Microcoagulation System is a batteryr ne real over to re in the nement that performs individual point-of-care coagulation tests on fresh or operated, norial morantents include: Activated Clotting Time (ACT+ and ACT-LR), Activated Partial Thromboplastin Time (APTT and APTT Citrate), and Prothrombin Time (PT and PT Citrate). The system is intended to be used with test cuvettes that are available from ITC. Data management capabilities are included with the instrument. These capabilities include Storage of up to 600 patient results and 600 quality control results, designation of quality control levels, tagging of test results with date and time, entry of Patient ID and/or Operator ID or levers, tagging of toot room and bate HEMOCHRON® Configuration Manager software is included with the instrument. This software allows the user to connect a personal computer to the included with the instrument. This octtivation functions using a Microsoft Windows® user interface. HEMOCHRON® ReportMaker" and idms " software which are provided separately, allow the user to connect a personal computer to the instrument and perform various data management and data reporting functions. For in vitro Diagnostic Use

The HEMOCHRON ® Response is intended for professional use for hemostasis management in a variety of clinical settings for the quantitative determination of an assortment of coagulation test assays including the following HEMOCHRON Whole Blood Coagulation Assays Activated Clotting Time (ACT) - All HEMOCHRON types Activated Partial Thromboplastin Time (APTT) - All HEMOCHRON types Prothrombin Time (PT) - All HEMOCHRON types Thrombin Time (TT) Heparin Neutralized Thrombin Time (HNTT) High Dose Thrombin Time (HiTT) Fibrinogen (FIB) Protamine Dose Assay (PDA) - All HEMOCHRON types Heparin Response Time (HRT) - All HEMOCHRON types Protamine Response Time (PRT) - All HEMOCHRON types For In Vitro Diagnostic Use Only

The Hemochron Response instrument/system described herein is a software upgrade (Version 2.0) to the current Hemochron Response Instrument, which has been cleared under K983475 (May 1999). The HEMOCHRON® Response is a portable, dual-well microprocessor-controlled coagulation instrument with an integral barcode reader, laboratory communication interface and a printer designed to perform whole blood coagulation tests using fresh or citrated whole blood. The system is intended for use in many clinical settings requiring point-of-care testing. The modified Response instrument performs the same assays as the predicate instrument. There are no changes to the clot detection algorithm. The patented clot detection mechanism is an electro-mechanical system consisting of two test wells into which disposable test tube assays are inserted. The test tube assays contain specific reagent for the test performed and a precision magnet. Immediately after adding a blood sample to the test tube and pressing the start button, the test tube is placed in the test well and is automatically rotated at a slow controlled speed and incubated at 37°C. When a fibrin clot begins to form, it causes the magnet in the test tube to be displaced. Two magnetic detectors located in the test well continuously monitor the precise position of the magnet. When a pre-determined displacement occurs, the elapsed time form the start of the test and the clot endpoint is displayed as the coagulation time in seconds.

The Hgb Pro Professional Hemoglobin Testing System™ consists of a portable, battery operated meter and single-use test strips for the quantitative measurement of total hemoglobin from capillary or venous (EDTA) whole blood. The Hgb Pro Professional Hemoglobin Testing System is designed for near patient testing in a professional facility. The Hgb Pro Professional Hemoglobin Testing System is not intended for home use. For In Vitro Diagnostic Use Only

The Hgb Pro Professional Hemoglobin Testing System™ consists of a portable, battery operated meter and single-use test strips for the quantitative measurement of total hemoglobin from capillary or venous (EDTA) whole blood. The Hgb Pro Professional Hemoglobin Testing System is designed for near patient testing in a professional facility. The Hgb Pro Professional Hemoglobin Testing System is not intended for home use. The Hgb Pro meter utilizes optical reflectance for determination of total hemoglobin. The test strip, containing a membrane preloaded with a dried reagent containing a red cell lysing agent, is inserted into the meter. A drop of whole blood is applied to the test location on the strip after a baseline reading is taken. Blood immediately disperses within the membrane, resulting in lysis of red blood cells and release of hemoglobin. The meter's optical detectors automatically measure the change in membrane reflectance. The meter calculates and displays the total hemoglobin concentration in grams/deciliter (s/dL, equivalent to percent) or millimole/L) based on a mathematical conversion table, which is programmed into the instrument. Minor adjustments may be made to the conversion on a lot-by-lot basis based on variation of the raw materials and process to ensure accuracy with the laboratory system. The test result will be displayed in 30 seconds or less.

The HEMOCHRON® Signature+ is a portable, battery-operated point of care microcoagulation instrument designed to perform whole blood coagulation tests using fresh or citrated whole blood. The system is intended for use in many clinical settings requiring point-of-care testing. Whole blood test results are displayed as clotting times (in seconds). The Signature+ also displays correlated Celite® equivalent ACT values, APTT and PT plasma equivalent values, and the PT INR value. For In Vitro Diagnostic Use Only

The Hemochron Jr. Signature + instrument is an upgrade to the current Hemochron Jr. Signature instrument cleared under K974799 (July 1998). The HEMOCHRON® Signature+ is a portable, battery-operated point of care microcoagulation instrument designed to perform whole blood coagulation tests using fresh or citrated whole blood. The system is intended for use in many clinical settings requiring point-of-care testing. The Signature Plus instrument performs the same assays as the predicate instrument. There are no modifications to the clot detection algorithm. The Signature Plus instrument employs the same clot detection mechanism as the predicate Signature. The clot detection mechanism is a combination mechanical-optical system. Blood is placed in a collection reservoir of a test cuvette and subsequently drawn into the test channel of the cuvette, which contains the reagent required to perform the respective coagulation assay. As blood is actively pumped back and forth in the test channel, LED detectors measure the position of the blood. As clotting begins to occur, the movement of the blood decreases below a pre-determined rate where the endpoint is recorded. The HEMOCHRON® Signature+ provides data management capabilities including the following: Patient and quality control result storage, Input of operator and patient identification, Designation of quality control level, Date and time stamp for all test results, Printer access, Tests performed are tracked by test type and quality control failures. The HEMOCHRON® Signature+ Configuration Manager (HCM) is a Windows-based software application. With this software, the Point-of-Care Coordinator (POCC) or Supervisor, may configure the HEMOCHRON® Signature+ to meet the needs of the clinical setting. The functionality addressed with the Configuration Manager allows the POCC to set mandatory requirements for the input of operator and patient identifications, set limitations for liquid and electronic quality control, can prohibit operators from erasing database information or changing time/date settings. The POCC may also use the HCM to load predetermined notes (up to nine notes) into the Signature+ instrument that may be appended to the patient or quality control test. The HCM may be used to synchronize several HEMOCHRON® Signature+ instruments to the same requirements via the PC connection. The modifications to the Hemochron Jr. Signature+ system include a software revision to the instrument, which allows for enhanced programming capability and flexibility for the user through the use of the Hemochron Configuration Manager (HCM Application Software), which is provided to the user for use in a Personal Computer (PC). Accessing the PC interface is accomplished through the use of special hot keys on the instrument, which enables the user to interact with the instrument database and the HCM. The Signature + software modifications allow the user many additional programmable features. The user interface for the clinician remains consistent with the previously cleared system with the exception of the enhanced features described in the revised operators manual including the features associated with the (HCM).

The HEMOCHRON ® Response is intended for professional use for hemostasis management in a variety of clinical settings for the quantitative determination of an assortment of coagulation test assays including the following HEMOCHRON Whole Blood Coagulation Assays Activated Clotting Time (ACT) -- All HEMOCHRON types Activated Partial Thromboplastin Time (APTT) - All HEMOCHRON types Prothrombin Time (PT) - All HEMOCHRON types Thrombin Time (TT) Heparin Neutralized Thrombin Time (HNTT) High Dose Thrombin Time (HiTT) Fibrinogen (FIB) Protamine Dose Assay (PDA) - All HEMOCHRON types Heparin Response Time (HRT) - All HEMOCHRON types Protamine Response Time (PRT) - All HEMOCHRON types For In Vitro Diagnostic Use Only

The HEMOCIIRON® Response is an upgrade of the HEMOCHRON® Coagulation Instruments, HFMOCHRON® Model 8000 that was approved under 510(k) K930068 and the HEMOCHRON® Models 401 and 801. The HEMOCHRON® Response performs the same tests as the predicate HEMOCHRON@ Instruments. All test assays are previously 510(k) approved. The IIEMOCIIRON® Response employs the same mechanical clot detection system as the predicate HEMOCHRON® Instruments. Mechanical systems can be used to monitor clotling times in either whole blood or plasma samples. The HEMOCHRON® employs a mechanical clot detection system. The principle of operation is based on the electrical field generated by a magnet contained within a glass test tube when the magnet is in close proximity to the detector located within the test well. To perform a test, blood is added to the test tube and placed in the test well. The magnet freely rotates within the tube, in a non-clotted sample. The magnet position is detected by two solid-state Hall effect sensors. When a clot forms the magnet is caught within the clot and is shifted out of the detection area. The electrical change that occurs due to the magnet rotation triggers the timer to stop with an audible beep signaling clot formation to the user. The HEMOCHRON® Response is a sollware / firmware and mechanical upgrade of the HEMOCHRON® Instruments designed to perform the same tests as the predicate instruments. The upgrade provides the end user with additional quality features not currently available in the predicate HEMOCHRON® Instruments. The HEMOCHRON@ Response is a modification of the HEMOCHRON® Instruments with improved test well operation and reliability through the use of two Hall Effect solidstate detectors. This provides for full magnet position tracking within the test tube and eliminates the calibration drift of well parameters. In addition a UPC-E bar code detector has been added to automatically read the affixed bar code label and identify the test assay, expiration date and lot number of the test assay, The instrument provides advanced patient and OC data tracking and streamlined computer interface capabilities which provide essential quality features for the end users.

The HEMOCHRON® Electronic System Verification Tube is intended for in vitro diagnostic use in performing a quantitative electronic detection system verification of HEMOCHRON® Coagulation Instruments. The Electronic System Verification Tube electronically simulates test initiation and clot detection in the same manner as patient assay end points are recorded.

The device is a plastic tube with battery operated electronic circuitry that electronically simulate test initiation and clot detection using the same principles employed in a clotting time assay. Once started and placed in the Hemochron test well, the ESVT electronically simulates the operation of a 100, 300 and 500 second clotting time. The comparison of the displayed Hemochron clotting time with the ESVT clotting time is a quality control test of the functionality of the test well and test detector.

The Hemochron® Jr. Citrated PT is a unitized microcoagulation test intended for in vitro diagnostic use in performing a quantitative, one-stage prothrombin time. The Citrated PT test is performed using a citrated whole blood sample on the Hemochron® Jr. microcoagulation system. The instrument is portable and is intended for point of care testing. The instrument is not intended for home use. For in vitro Diagnostic Use

The Hemochron® Jr. Microcoagulation Citrated PT test is a self-contained disposable test cuvette, prefilled with dried reagents required to perform a PT using citrated whole blood with the Hemochron® Jr. Whole Blood Microcoagulation System. The thromboplastin employed in the Hemochron® Jr. Microcoagulation Citrated PT test is identical to that used in the predicate device, the ITC Microcoagulation Prothrombin Time Test. The difference between the current assay and the predicate is a reagent modification to include calcium salt such that citrated whole blood may be used as the test substrate. The predicate device uses only fresh, non-citrated whole blood. In addition to the calcium salt, the preparation contains rabbit brain thromboplastin, stabilizers and buffers, similar to the reagents contained in the predicate device. The Hemochron® Jr. Microcoagulation Citrated PT and the predicate ITC Microcoagulation Prothrombin Time Test are both intended for point-of-care use. Both assays are performed using the ITC Microcoagulation analyzers.