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The SpiroSphere is a compact device inspiratory and expiratory lung function parameters in adults and children aged 4 years and older. It can be used by physicians in the office or hospital.

With the option ECG, electrocardio measurements can be made under resting conditions. For this purpose a 12channel surface electrocardiogram can be measured and recorded. The acquired ECG can be displayed on the screen or printed on paper. The interpretation software is intended to support the physician in evaluation of the resting ECG in terms of morphology and rhythm. Automatic interpretation of the ECG is not possible for pediatric subjects with an age below 16 years and for pacemaker subjects. It is not intended for intra-cardial use.

A qualified physician has to reassess all ECG measurements. An interpretation by SpiroSphere ECG is only significant if it is considered in connection with other clinical findings. ECG interpretation statements made by the SpiroSphere ECG represent partial qualitative and quantitative information on the patient's cardiovascular condition and no therapy or drugs can be administered based solely on the interpretation statements. The SpiroSphere ECG is not intended for use in an EMS environment (Emergency Medical Services Environment).

The minimum age for ECG application is 4 years.

It can be used by physicians in the office or hospital.

With the CardioSphere, electrocardio measurements can be made under resting conditions. For this purpose a 12channel surface electrocardiogram can be measured and recorded. The acquired ECG can be displayed on the screen or printed on paper. The interpretation software is intended to support the physician in evaluation of the resting ECG in terms of morphology and rhythm. Automatic interpretation of the ECG is not possible for pediatric subjects with an age below 16 years and for pacemaker subjects. It is not intended for intra-cardial use.

A qualified physician has to reasurements. An interpretation by CardioSphere is only significant if it is considered in connection with other clinical findings. ECG interpretation statements made by the CardioSphere represent partial qualitative and quantitative information on the patient's cardition and no therapy or drugs can be administered based solely on the interpretation statements. The CardioSphere is not intended for use in an EMS environment (Emergency Medical Services Environment).

The minimum age for ECG application is 4 years.

It can be used by physicians in the office or hospital.

SpiroSphere is a compact spirometry device. Its Sensor Unit is batterypowered. The Main Unit can be powered by battery or power supply. The SpiroSphere / SpiroSphere ECG is used to measure inspiratory and expiratory lung function parameters in adults and children 4 years and older. The measured data is saved to the device and can be read out at any time.

SpiroSphere ECG is a compact spirometry device. Its Sensor Unit is battery-powered. The Main Unit can be powered by battery or power supply. The SpiroSphere / SpiroSphere ECG is used to measure inspiratory and expiratory lung function parameters in adults and children 4 years and older. The measured data is saved to the device and can be read out at any time.

With the ECG option (subject of this 510(k)), 12-channel surface electrocardiogram can be measured and recorded.

The Main Unit can be powered by battery or power supply. The Main Unit is wirelessly connected to an ECG amplifier via Bluetooth.

With the ECG option (subject of this 510(k)), 12-channel surface electrocardiogram can be measured and recorded.

A printer can be connected and data (e.g. reports, screenshots) can be printed. Moreover, it is possible to transfer data by USB. Wifi. 3G. and Ethernet connections.

Pulmonary function assessments

• Slow Spirometry .
• Forced Spirometry .
• Flow-Volume loop and Volume-Time tracing, pre/post tests ●
• Trending capabilities ●

Cardiovascular assessments

• 12 Lead Electrocardiogram ●

The provided text does not contain information about acceptance criteria and the study that proves the device meets the acceptance criteria. The document is a 510(k) premarket notification letter from the FDA, along with a device description and comparison tables to predicate devices. It discusses general information about the device, its intended use, technological characteristics, and a summary of device testing (e.g., software verification, risk analysis, electrical safety, EMC, human factors, cybersecurity, reprocessing validation). However, it does not specify quantitative acceptance criteria for performance metrics (such as sensitivity, specificity, accuracy) for its interpretation software, nor does it detail a specific study proving these criteria were met.

Therefore, I cannot provide the requested information based on the given text.

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MasterScope WSSU is a medical device to measure inspiratory and expiratory lung function parameters. With the option ECG a 12-channel surface electrocardiogram (ECG) can be measured and recorded. It is not intended for intracardial use. Automatic interpretation of the ECG is not possible for pediatric patients with an age below 16 years and for pacemaker patients.

A qualified physician has to reassess all MasterScope/MasterScope ECG measurements. An interpretation by MasterScope/MasterScope ECG is only significant if it is considered in connection with other clinical findings. ECG interpretation statements made by the MasterScope/MasterScope ECG represent partial quantitative information on the patient's cardiovascular conditions and no therapy or drugs can be administered based solely on the interpretation statements.

It can be used by physicians in the office or hospital.

The MasterScope spirometry and ECG application is intended to measure adults and children aged 4 years and older. The patients must be able to understand and perform instructions of the physician.

The MasterScope is a portable device, which can collect spirometry and ECG data.

With the option Spirometry, inspiratory and expiratory lung function measurements can be performed with a wired sensor (Digital Handle USB) or wireless spirometry sensor unit (WSSU Bluetooth). Both spirometry sensors work with a pneumotach (Lilly Type Pneumotachograph).

The Wireless Spirometry Sensor Unit is battery-powered and can be charged with a dedicated charging station.

With the option ECG, a 12-channel surface electrocardiogram (ECG) can be measured and recorded. It is not intended for intracardial use.

The interpretation software is intended to support the physician in evaluation the ECG in terms of morphology and rhythm.

The MasterScope software allows protocol-driven workflows and can be customized for use in clinical trials (e.g. individual access rights).

MasterScope provides automated and secure data transmission to a centralized data base.

The measured data is saved into the MasterScope software and can be read out at any time.

A printer can be connected with the notebook and all needed data can be printed. Moreover it is possible to transfer data by USB, Wifi, and Ethernet.

The MasterScope WSSU is powered from 100 - 240V / 50 - 60Hz wall outlets. No energy is transferred to the patient.

The provided text describes the MasterScope WSSU device and its substantial equivalence to predicate devices, focusing on spirometry and ECG functions. The information relevant to acceptance criteria and study proving device performance is primarily found in the "Summary Table of Comparison" (pages 7-8) and "Summary of Device Testing" (page 12).

Here's an analysis of the provided information against the requested points:

Acceptance Criteria and Device Performance

1. Table of Acceptance Criteria and Reported Device Performance:

The document provides performance specifications for the pulmonary function measurements, which serve as acceptance criteria.

Pulmonary Function Performance Comparison

Note: The MasterScope WSSU is stated to have identical performance specifications to the reference device (SpiroSphere K173937), meaning it meets the established acceptance criteria. The document explicitly states "The Sensor Unit used in MasterScope WSSU device is cleared under SpiroSphere (K173937). The Sensor Unit is supplied in its final finished form and is identical to the reference predicate device." and lists the exact same performance specifications for the MasterScope WSSU as for SpiroSphere in the comparison table.

2. Sample size used for the test set and the data provenance:

The document does not explicitly state the sample size used for the test set in the context of clinical performance evaluation (e.g., number of patients or spirometry maneuvers). Instead, it refers to

• "Tests were performed to confirm that the MasterScope WSSU meets the recommendations for accuracy and precision for Spirometry of the American Thoracic Society (ATS) according to ATS/ERS standards 2005." (page 12)
• "The Sensor Unit used in MasterScope WSSU device is cleared under SpiroSphere (K173937). The Sensor Unit is supplied in its final finished form and is identical to the reference predicate device." (page 7)

This suggests that the performance evaluation relies heavily on the prior clearance of the identical sensor unit within the SpiroSphere device, which would have undergone its own testing.
The document does not specify the country of origin of data or whether it was retrospective or prospective for the current submission's testing. It seems to leverage existing data/clearance.

3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts:

This information is not provided in the document. The spirometry performance is based on ATS/ERS standards, which are objective technical standards rather than expert consensus on individual cases. For the ECG interpretation, the device uses the "Hannover ECG system (HES)", but the document notes: "A qualified physician has to reassess all MasterScope/MasterScope ECG measurements. An interpretation by MasterScope/MasterScope ECG is only significant if it is considered in connection with other clinical findings. ECG interpretation statements made by the MasterScope/MasterScope ECG represent partial quantitative information on the patient's cardiovascular conditions and no therapy or drugs can be administered based solely on the interpretation statements." This indicates that the device's ECG interpretation is supportive, not definitive, and requires physician oversight. Therefore, direct expert ground truth establishment for a test set, as might be done for an AI diagnostic device, is not thoroughly described here.

4. Adjudication method (e.g. 2+1, 3+1, none) for the test set:

This information is not provided. Given the nature of objective performance testing against standards rather than subjective human interpretation, a formal adjudication method as typically seen in image-based AI studies (e.g., 2+1 radiologist reads) is generally not applicable or described for this type of device.

5. If a multi reader multi case (MRMC) comparative effectiveness study was done, If so, what was the effect size of how much human readers improve with AI vs without AI assistance:

A multi-reader multi-case (MRMC) comparative effectiveness study involving human readers with and without AI assistance was not mentioned or described. This device appears to be a measurement tool with an interpretation assist (for ECG), not a primary AI diagnostic tool where human-AI interaction is the core subject of evaluation. The primary focus of the submission is demonstrating substantial equivalence through technical performance and component identity.

6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done:

The device's performance specifications (Accuracy and Resolution) for spirometry are for the device itself, implying standalone performance. For ECG, the device uses the "Hannover ECG system (HES)" which provides "interpretation statements." However, the text explicitly states that "Automatic interpretation of the ECG is not possible for pediatric patients with an age below 16 years and for pacemaker patients," and "A qualified physician has to reassess all MasterScope/MasterScope ECG measurements." This suggests that even for ECG, the algorithm's output is not intended to be "standalone" without human-in-the-loop, emphasizing a supportive role. The technical performance metrics listed for spirometry are inherent to the device's measurement capabilities.

7. The type of ground truth used (expert consensus, pathology, outcomes data, etc.):

For spirometry, the ground truth is against ATS/ERS standards 2005 for accuracy and precision. These are widely accepted objective technical standards for pulmonary function testing equipment.
For ECG, the "Hannover ECG system (HES)" provides interpretation statements. The implicit ground truth for such systems would typically involve a large dataset of ECGs with confirmed diagnoses (often by expert cardiologists or based on outcomes), but the document does not detail how HES's accuracy was validated or what constituted its ground truth in this submission. The submission focuses on the HES being part of the predicate device.

8. The sample size for the training set:

The document does not provide information regarding the sample size for a training set. This is not a typical AI/ML device where specific training datasets are detailed in this manner. The device is primarily a measurement instrument, and its software (including HES) is presumably developed based on established algorithms rather than contemporary machine learning models that require large labeled training sets as a distinct part of the clearance process for new devices.

9. How the ground truth for the training set was established:

Since no specific "training set" and its size are mentioned, the method for establishing its ground truth is also not provided. The device is categorized as a "Predictive pulmonary-function value calculator" but operates on established physiological measurement principles and computations. The ECG interpretation component (HES) is a "black box" in terms of its internal development and training, leveraging its prior clearance within the predicate device.

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The SpiroSphere is a compact device to measure inspiratory and expiratory lung function parameters in adults and children aged 4 years and older.

It can be used by physicians in the office or hospital.

The SpiroSphere is a compact spirometry device. It's Sensor Unit is battery-powered. The Main Unit can be powered by battery or power supply. The SpiroSphere is used to measure inspiratory and expiratory lung function parameters in adults and children 4 years and older. The measured data is saved into the device and can be read out at any time.

A printer can be connected with the SpiroSphere and all needed data (e.g. reports, Screenshots) can be printed. Moreover it is possible to transfer data by USB, Wifi, 3G, and Ethernet.

Pulmonary functions

• Slow Spirometry
• Forced Spirometry
• Flow-Volume loop and Volume-Time tracing, pre/post tests
• Trending capabilities

The provided text describes the SpiroSphere, a device for measuring lung function, and its substantial equivalence to a predicate device (SpiroPro). However, it does not contain the detailed information required to answer your specific questions about acceptance criteria and a study proving the device meets them.

The document is a 510(k) summary for premarket notification to the FDA. It focuses on demonstrating substantial equivalence to a legally marketed predicate device, rather than providing the detailed clinical or performance study results you're asking for.

Here's a breakdown of why the requested information is absent:

• Acceptance Criteria and Reported Device Performance (Table): The document states adherence to ATS/ERS standards (2005) for spirometry accuracy and precision and lists various parameters measured (FEV1, FVC, PEF, etc.). However, it does not provide a specific table of acceptance criteria (e.g., +/- x% accuracy) or numerical reported device performance against those criteria. It only generally states that "Tests were performed to confirm that the SpiroSphere meets the recommendations for accuracy and precision for Spirometry of the American Thoracic Society (ATS) according to ATS/ERS standards 2005."
• Sample Size, Data Provenance, Ground Truth Experts, Adjudication Method, MRMC Study, Standalone Performance, Training Set Sample Size/Ground Truth: These details are typically found in a dedicated clinical or performance study report, which is not included in this summary. The 510(k) summary only mentions general verification and validation activities and conformance to standards.

In summary, based only on the provided text, I cannot complete the table or answer the specific questions about the study details because that level of detail is not present in this FDA 510(k) summary.

The document discusses:

• Device Name: SpiroSphere
• Predicate Device: SpiroPro (K000648) and SpiroPro with BT (K092324)
• Intended Use/Indications for Use: To measure inspiratory and expiratory lung function parameters in adults and children aged 4 years and older, usable by physicians in office or hospital.
• Technological Characteristics: Uses a pneumotachograph (Lilly Type) for pressure to flow conversion, measures various parameters (FEV1, FVC, PEF, FEF25-75, VC, IC, ERV) conforming to ATS/ERS Spirometry Standards (2005).
• Testing Mentioned: Software verification and validation (IEC 62304), Risk analysis (ISO 14971), electrical safety (IEC 60601-1:2012), EMC (IEC 60601-1-2:2014), wireless technology (FDA Guidance 2013), Human Factors/Usability (IEC 62366), Biocompatibility (ISO 10993-1:2009, ISO 18562:2017), Cybersecurity (FDA Guidance 2014), Reprocessing (FDA Guidance 2015).

To answer your questions thoroughly, a complete performance study report would be required, which typically contains the specific data and methodologies.

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