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The SNAP Model 7™ device is indicated for use in the diagnostic evaluation of patients for apnea and snoring and to provide quantitative and qualitative analysis of apnea and snoring. The SNAP Model 7™ testing system is not intended as a substitute for full polysomnography when additional parameters such as sleep stages or EEG activity are required. The target population consists of patients who are suspected of apnea and/or complain about snoring. The majority of the test procedures will take place at the patient's home, although some may take place in a sleep laboratory. Both pediatric and adult patients may be tested.

The SNAP Model 7™ system consists of several components, many of them essentially unchanged from the predicate devices. The major components of the system are the Model 7 Data Recorder, which is an updated design modification to the Model 6 predicate device. Other major elements of the system are the DLL (Dynamic Link Library) and GUI (Graphical User Interface) software which run on a PC in the physician's office, and the data analysis software located on computers at the SNAP laboratories central location. The DLL contains low-level routines for setup, control and data transfer, whereas the GUI is a high-level program which provides the interface between the user (doctor's office) and the DLL. The SNAP Model 7™ Data Recorder is a small DC powered device designed to be simple and easy to use by a patient. It is self-contained, with integrated microcontroller and LCD display and all necessary interface electronics to perform all system recording functions. It does not require connection to a host computer in order to perform the recording functions. The data recorder consists of the physical hardware and firmware that interfaces to the patient to collect the physiological data. The recorder has sensors to collect sound, pulse oximetry, respiration effort (belt), and body position. The information is digitized and stored on a removable solid state memory card. The data on the removable data card is accessed through a USB port on the device, connecting to a PC running the DLL software. The DLL software provides the interface for all communication between the recorder and the computer in the doctor's office. This DLL handles the low-level USB communications as well as parsing and storing intermediate files on the connecting computer. The DLL also interacts with a higher-level GUI client application. The GUI calls DLL functions to interact with the data recorder. The GUI also interacts through the Internet with the central website to transfer the patient data, and provides various data entry functions. The data analysis software is essentially unchanged from that used with both predicate devices.

The intended use of the "Snap Model 5™" device is to screen patients for apnea and snoring and to provide quantitative and qualitative analysis of apnea and snoring. The "Snap Model 5™" testing system is only intended for short term monitoring such as to record the oximetry and snoring sounds continuously during the night. The system is not intended as a substitute for full polysomnography when additional parameters such as sleep stages, limb movements or EEG activity are required. The target population is patients who are suspected of apnea and/or complain about snoring. The majority of the screenings are going to take place at the patient's home, although some may take place in a sleep laboratory. Both pediatric and adult patients may be tested. CAUTION: US Federal law restricts this device to sale by or on the order of a physician. Use of this device must be under the direct supervision of a qualified adult (parent or guardian) or health care practitioner trained in the use of the "Snap Model 5TM" device.

This notification is for a modification to the existing device, the "Digi-Snap™" Testing Device. The modified device is called the "Snap Model 5™4" The modification involves the use of a personal computer with certain options installed instead of the specialized microcomputer and Zip drive system. The oximeter is connected to the unit along with the usual microphone/cannula apparatus and the oximeter sensor is slipped over the patient's finger in the usual manner. The patient turns on the unit, then goes to sleep. Apnea and snoring events are then recorded. After awakening, the patient returns the disk and the equipment to the analysis service center, where the disk is analyzed. If the patient's own personal computer was used, only a disk is returned to the analysis center for evaluation.

The intended use of the "Digi-Snap ™" device is to screen patients for apnea and snoring and to provide quantitative and qualitative analysis of apnea and snoring. The Digi-Snap testing system is only intended for short term monitoring such as to record the oximetry and snoring sounds continuously during the night. The system is not intended as a substitute for full polysomnography when additional parameters such as sleep stages, limb movements or EEG activity are required. The target population is patients who are suspected of apnea and/or complain about snoring. The majority of the screenings are going to take place at the patient's home, although some may take place in a sleep laboratory. Both pediatric and adult patients may be tested. CAUTION: US Federal law restricts this device to sale by or on the order of a physician, Use of this device must be under the direct supervision of a qualified adult (parent or guardian) or health care practitioner trained in the use of the "Digi-Snap™" device.

This notification is for a modification to the existing device, the "Oxi-Snap™" Testing Device. The modified device is called the "Digi-Snap. TM" The modification involves the use of a 100 MB "Zip" drive in place of the DAT tape recorder. This eliminates one A/D-D/A conversion because the snoring sounds are digitized at the first opportunity, in the unit at the patient's bedside.

The intended use of the "Oxi-Snap" device is to screen patients for apnea and snoring and to provide quantitative and qualitative analysis of apnea and snoring. The Oxi-SNAP testing system is only intended for short term monitoring such as to record the oximetry level continuously during the night. The "Oxi-SNAP" system is not intended as a substitute for full polysomnography when additional parameters such as sleep stages, limb movements or EEG activity are required. The target population is patients who are suspected of apnea and/or complain about snoring. The majority of the screenings are going to take place at the patient's home, although some may take place in a sleep laboratory. Both pediatric and adult patients may be tested.

This notification is for a modification to the existing device, the "Snap Testing Device" the modified device is called the "Oxi-Snap" The modification involves the addition of the ability to record and analyze, (along with snoring sounds) the oxygen saturation level of the patient being monitored. An FDA cleared oximeter (Palco Model K943842) is connected to the currently used DAT tape 305, recorder, and the oxygen saturation is recorded while the patient is under test. Later, during the analysis phase, O2 SAT levels appear on the playback analysis screen, thereby allowing an additional criterion of apnea to be used.