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The MY01 Continuous Compartmental Pressure Monitor is used for real-time and continuous measurement of the muscle compartment pressure. The measured muscle compartment pressure can be used as an aid in diagnosis of Compartment Syndrome (Acute and Chronic). The MY01 Mobile Application is an application intended for storing and displaying identical pressure values from the MY01 Continuous Compartmental Pressure Monitor device and calculating critical muscle perfusion pressure utilizing diastolic pressure manual entry by the physician. Diagnosis should always be made in conjunction with clinical assessments.

The MY01 device is a single-use, sterile, prescription medical device. It consists of two major components: the Introducer (with a plastic housing and 17-gauge stainless-steel needle that allows for placement of a pressure sensor into muscle compartments) and the Pressure Monitor. The Pressure Monitor is a battery-powered, software/firmware controlled component that uses a capacitive Micro-Electro-Mechanical System (MEMS) sensor to measure muscle compartment pressure relative to atmospheric pressure obtained using a second MEMS sensor embedded within the device enclosure. The embedded software/firmware system in the Pressure Monitor handles all processing functions of the MY01 device. Pressure measurements, user notifications, and device status information are displayed on the LCD screen of the Pressure Monitor and stored in non-volatile memory. The MY01 device communicates securely via Bluetooth with the MY01 Mobile Application (the MY01 App) to transmit and display continuously in real time the measured muscle compartment pressure, user notifications and device status information. The muscle compartment pressure is displayed on the MY01 App along with the estimated muscle perfusion pressure that is derived using a manually entered diastolic pressure. The perfusion pressure is calculated using a simple subtraction: Muscle Perfusion Pressure - Muscle Compartment Pressure. The muscle compartment pressure is displayed as real-time numerical values and a continuously updated graph to visualize pressure trends over time. The muscle perfusion pressure is also displayed continuously with a dashed black line, indicating the estimated perfusion pressure based on the latest diastolic pressure entry. The time points of diastolic pressure entries are marked with solid black dots, indicating the calculated perfusion pressure at those specific times. The MY01 App does not analyze or interpret pressure data and it does not control any function or the configuration of the MY01 device. The MY01 App is not intended for active patient monitoring. Optionally, the MY01 App may connect via an encrypted Wi-Fi/Cellular network to the MY01 Application Server (a cloud-based server managed by MY01 Inc.) to transmit the recorded session and pressure data for off-line review, reporting and archival purposes. Registered clinicians using a MY01 device may reviously recorded session data on the MY01 App and may download this data from the cloud server as a comma separated value (.csv) file. The MY01 Application Server is a Non-Device MDDS; it does not modify the device data, does not control the functions or parameters of any medical device, and does not analyze or interpret the device data.

The Compartmental Compressibility Monitoring System (CPM#1) is intended for real-time and intermittent monitoring of relative compartment compressibility. The relative compartment compressibility (CP Value) is not meant for trend analysis.

The Compartmental Compressibility Monitoring System (CPM#1) is a point-of-care device for non-invasive, real-time, and intermittent monitoring of relative compartment compressibility. The device combines a linear ultrasound array with an integrated pressure sensor into a single handheld probe (CP Probe) to obtain cross-section ultrasound views of the compartment of interest. The device provides a surrogate metric of the compartment's compressibility in one ultrasound image plane only, using a linear measurement of distance between two points of the compartment, as a function of applied external pressure. Based on this measurement, a relative compartment compressibility value is calculated and displayed on-screen as the CP Value.

The MY01 Continuous Compartmental Pressure Monitor is used for real-time and continuous measurement of the muscle compartment pressure. The measured muscle compartment pressure can be used as an aid in diagnosis of Compartment Syndrome (Acute and Chronic). The MY01 Mobile Application intended for storing and displaying identical pressure values from the MY01 Continuous Compartmental Pressure Monitor device and calculating critical muscle perfusion pressure utilizing diastolic pressure manual entry by the physician. Diagnosis should always be made in conjunction with clinical assessments.

The MY01 Continuous Compartmental Pressure Monitor (MY01 device) is supplied sterile for single patient use and intended to be used for 18 hours, it contains two major components that are referred to as the Introducer (plastic housing and 17-gauge stainless-steel needle) and the Pressure Monitor. The Pressure Monitor consists of a capacitive Micro-Electro-Mechanical System (MEMS) pressure sensor, which allows for the measurement of intra-compartmental pressure relative to a secondary atmospheric pressure sensor. It is embedded on a flexible PCB circuit, which extends via a lead-wire to a rigid PCB circuit within the Pressure Monitor. The Introducer allows for placement of the pressure sensor into muscle compartments. The Pressure Monitor continuously outputs pressure values on the LCD screen and can be attached to the patient's skin using the provided adhesive strip on the underside. MY01 device uses wireless communication over BLE to transmit muscle pressure data to a nongeneric, compatible accessory, the MY01 Mobile Application, which is also developed by MY01, Inc.. The MY01 Mobile Application, cleared under K210525 is intended for storing and displaying pressure values from the MY01 Continuous Compartmental Pressure Monitor. Authenticated users of the MY01 Mobile Application can securely connect to a MY01 device the transmission of pressure data via an encrypted BLE link. The pressure values can be displayed as seen on the MY01 device or as a graph that is updated in real-time. The MY01 Mobile Application does not analyze or interpret pressure data on the MY01 device. The application is not able to control any functions or configuration of the MY01 device. The current pressure data measurement is displayed on the application and forwarded via an encrypted network link to a MY01 Application Server (cloud-based server) for data logging and archival purposes. The displayed and recorded pressure data is intended for informational purposes only and is not to be used for active-patient monitoring or diagnostic purposes. The modification that necessitated this submission entails the addition of a feature to the MY01 Mobile Application (cleared under K210525) that allows for calculation of perfusion pressure utilizing diastolic pressure manual entry by the physician.

The MY01 Continuous Compartmental Pressure Monitor is intended for real-time and continuous measurement of compartmental pressures. The measured compartmental pressures can be used as an aid in the diagnosis of compartment syndrome. The trend arrows displayed are meant for qualitative purposes only and are not intended to have any clinical significance. The MY01 Mobile Application is an optional application intended for storing and displaying identical pressure values from the MY01 Continuous Compartmental Pressure Monitor device. The data is for informational purposes only and is not intended to be used for diagnosis of any nature or active patient monitoring.

The MY01 Continuous Compartmental Pressure Monitor (MY01 device) is a device for measuring real-time and continuous compartmental pressured compartmental pressures should always be used along with the current standard of care as an aid in the diagnosis of compartment syndrome. The device is supplied sterile for single patient use and intended to be used for 18 hours, it contains two major components that are referred to as the Introducer (plastic housing and 17- gauge stainless-steel needle) and the Pressure Monitor. The Pressure Monitor consists of a capacitive Micro-Electro-Mechanical System (MEMS) pressure sensor, which allows for the measurement of intracompartmental pressure relative to a secondary atmospheric pressure sensor.It is embedded on a flexible PCB circuit, which extends via a lead-wire to a rigid PCB circuit within the Pressure Monitor. The Introducer allows for placement of the pressure sensor into muscle compartments. The Pressure Monitor continuously outputs pressure values on the LCD screen and can be attached on the patient's skin using the provided adhesive strip on the underside. MY01 device uses wireless communication over BLE to transmit data to an optional, nongeneric compatible accessory mobile application, which is also developed by MY01 Inc. for data logging and archival purposes and both cleared under Traditional 510(k), K202635. The MY01 Mobile Application cleared under K202635 is a Non-Device MDDS as per FDA guidance documents "Policy for Device Software Functions and Mobile Medical Applications" and "Medical Device Data Systems, Medical Image Storage Devices, and Medical Image Communications Devices" (both issued on September 27, 2019) and is therefore not subject to FDA regulatory requirements applicable to devices.

The MY01 Continuous Compartmental Pressure Monitor is intended for real-time and continuous measurement of compartmental pressures. The measured compartmental pressures can be used as an aid in the diagnosis of compartment syndrome. The trend arrows displayed are meant for qualitative purposes only and are not intended to have any clinical significance.

The MY01 Continuous Compartmental Pressure Monitor (MY01 device) is a device for measuring real-time and continuous compartmental pressure. The measured compartmental pressures should always be used along with the current standard of care as an aid in the diagnosis of compartment syndrome. The device is supplied sterile for single patient use and intended to be used for 18 hours, it contains two major components that are referred to as the Introducer (plastic housing and 17gauge stainless-steel needle) and the Pressure Monitor. The Pressure Monitor consists of a capacitive Micro-Electro-Mechanical System (MEMS) pressure sensor, which allows for the measurement of intracompartmental pressure relative to a secondary atmospheric pressure sensor. It is embedded on a flexible PCB circuit, which extends via a lead-wire to a rigid PCB circuit within the Pressure Monitor. The Introducer allows for placement of the pressure sensor into muscle compartments. The Pressure Monitor continuously outputs pressure values on the LCD screen and can be attached on the patient's skin using the provided adhesive strip on the underside. Modification: The purpose of this submission is an enhancement of the device functionality to include wireless communication over Bluetooth Low Energy (BLE) to transmit data to a compatible mobile application for data logging and archival purposes. The MY01 mobile application does not analyze of interpret recorded pressure data. It is not intended to aid in diagnosis or monitoring. The application is not able to control any functions or configuration parameters of the MY01 device. Authenticated users of the mobile application can securely connect to a MY01 device and enable the transmission of pressure data via an encrypted BLE link. The current pressure data measurement is displayed on the application and forwarded via an encrypted network link to a cloud-based server (MY01 application server) for data logging and archival purposes.

The MY01 Continuous Compartmental Pressure Monitor is intended for real-time and continuous measurement of compartmental pressures. The measured compartmental pressures can be used as an aid in the diagnosis of compartment syndrome. The trend arrows provide a general pressure direction and are for informational purposes only. Do not rely upon the trend arrows for the diagnosis of compartment syndrome.

The MY01 Continuous Compartmental Pressure Monitor (MY01 device) is a device for measuring real-time and continuous compartmental pressured compartmental pressures should always be used along with the current standard of care as an aid in the diagnosis of compartment syndrome. The device is supplied sterile for single patient use and can be used up to a maximum of 18 hours, at which point a warning message is displayed cautioning the user. It contains two major components that are referred to as the Introducer (plastic housing and 17gauge stainless-steel needle) and the Pressure Monitor. The Pressure Monitor consists of a capacitive Micro-Electro-Mechanical System (MEMS) pressure sensor, which allows for the measurement of intracompartmental pressure relative to a secondary atmospheric pressure sensor. It is embedded on a flexible PCB circuit, which extends via a lead-wire to a rigid PCB circuit within the Pressure Monitor. The Introducer allows for placement of the pressure sensor into muscle compartments. The Pressure Monitor continuously outputs pressure values on the LCD screen and can be attached on the patient's skin using the provided adhesive strip on the underside.

The Twin Star Extremity Compartment Monitor and Fluid Collection System (ECM-III) is intended for the immediate or continuous measurement of intracompartmental pressures and/or the withdrawal of fluid for subsequent analysis. The measured compartmental pressures can be used as an aid in the diagnosis of compartment syndrome.

The Twin Star Extremity Compartment Monitor and Fluid Collection System (ECM-III) consists of four major components; an Introducer, a Pressure Monitoring and Fluid Collection (PMFC) Catheter, a Fluid Collection (FC) Catheter, and a Compartment Pressure Monitor. The Introducer consists of tear-away plastic sheath placed over a stainless steel trocar. The Introducer provides an access to the targeted muscle compartment to facilitate the placement of the indwelling Pressure Monitoring Fluid Collection / Fluid Collection catheter. The indwelling Catheter is designed to monitor intramuscular compartment pressure as well as provide a means to sample interstitial fluid for laboratory analysis. The indwelling Catheter is designed for use up to 24 hours. The Twin Star Extremity Compartment Monitor and Fluid Collection System (ECM-III) provides a means of displaying the intracompartmental pressure.

The Twin Star Compartment Pressure Monitor and Fluid Collection Catheter System (CMS-II) is intended for the immediate or continuous measurement of intracompartmental pressures and/or the withdrawal of fluid for subsequent analysis. The measured compartmental pressures can be used as an aid in the diagnosis of compartment syndrome.

The Twin Star Compartment Pressure Monitoring and Fluid Collection Catheter System (CMS-II) consists of four major components; an Introducer, a Pressure Monitoring and Fluid Collection (PMFC) Catheter, a Fluid Collection (FC) Catheter, and a Compartment Pressure Monitor. The Introducer consists of tear-away plastic sheath placed over a stainless steel trocar. compartment to facilitate the placement of the indwelling Pressure Monitoring Fluid Collection / Fluid Collection catheter. The indwelling Catheter is designed to monitor intramuscular compartment pressure as well as provide a means to sample interstitial fluid for laboratory analysis. The indwelling Catheter is designed for use up to 24 hours. The Twin Star Compartment Pressure Monitoring provides a means of displaying the intracompartmental pressure.

The Twin Star Compartment Pressure Monitoring and Fluid Collection Monitor (CMS Monitor) is intended for the measurement and monitoring of intracompartmental pressures and the withdrawal of fluid for subsequent analysis. The measured compartmental pressures can be used as an aid in the diagnosis of compartment syndrome. The CMS Monitor is intended to be used in conjunction with the Twin Star Compartment Pressure Monitoring and Fluid Collection Catheter (CMS Catheter).

The Twin Star Compartment Pressure Monitoring and Fluid Collection (CMS) Monitor displays and records pressure as measured by the Twin Star Compartment Pressure Monitoring and Fluid Collection Catheter (CMS Catheter). The Twin Star CMS Catheter has been previously cleared by 510k notification. The multi-task CSM Monitor consists of a single housing unit that incorporates a vacuum pump, an infusion pump and a pressure monitor with visual display and user interface. The CMS Monitor provides the necessary functions required by the CMS Catheter. In addition to monitoring pressure, the CMS Monitor provides a very low volume fluid infusion to maintain the CMS Catheter's pressure lumen patency and a vacuum to the second lumen for fluid collection; both infusion and vacuum are required for the functional operation of the CMS Catheter.

The Twin Star Compartment Pressure Monitoring and Fluid Collection Catheter System is intended for the immediate or continuous measurement of intracompartmental pressure and for the withdrawal of fluid for subsequent analysis. The measured pressures and the withdrawn fluid serve as an aid in the diagnosis of compartment syndrome.

The Twin Star Compartment Pressure Monitoring and Fluid Collection Catheter System Consists of two major components i.e., an Introducer and an indwelling Catheter. The Introducer consists of a plastic sheath placed over a stainless steel trocar. The Introducer provides an access to the targeted muscle compartment to facilitate the placement of the indwelling Monitoring and Fluid Collection Catheter. The indwelling Catheter is designed to measure intramuscular compartment pressure as well as provide a means to collect a sample interstitial fluid for laboratory analysis. The indwelling Catheter is designed for use up to 24 hours. The Twin Star Compartment Pressure Monitoring and Fluid Collection Catheter System is designed to be used with currently marketed equipment including a vacuum pump, infusion pump, pressure transducer and monitor.