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Recho R9W/Recho R9/Recho R9 Pro/Recho R9 Exp/Recho R9S/Recho R9T/Crius R9 CV/Anesus R9 CV/Recho R9 Super/Recho R9 Lumi/Recho R CV/Recho R CVx Diagnostic Ultrasound System is applicable for adults, pregnant women, pediatric patients and neonates. It is intended for use in fetal, abdominal, Intra-operative(abdominal, thoracic, and vascular), pediatric, small organ(breast, thyroid, testes), neonatal and adult cephalic, trans-rectal, trans-vaginal, musculo-skeletal(conventional, superficial), thoracic/pleural, adult and pediatric cardiac, trans-esoph. (Cardiac), peripheral vessel, and urology exams.

This device is a general purpose diagnostic ultrasound system intended for use by qualified and trained healthcare professionals for ultrasound imaging, measurement, display and analysis of the human body and fluid, which is intended to be used in a hospital or medical clinic.

Modes of operation include: B, M, PWD, CWD, Color Doppler, Amplitude Doppler, Combined mode(B+M, PW+B, Color+B, Power+B, PW+Color+B, Power+PW+B), Tissue Harmonic Imaging, Smart 3D, 4D, Matrix 4D, iScape View, TDI, Color M, Strain Elastography, Contrast imaging (Contrast agent for LVO), V Flow, STE, STQ, Contrast imaging (Contrast agent for Liver)

The Recho R9W, Recho R9, Recho R9 Pro, Recho R9 Exp, Recho R9S, Recho R9T, Crius R9 CV, Anesus R9 CV, Recho R9 Super, Recho R9 Lumi, Recho R CV, Recho R CVx Diagnostic Ultrasound System is a general purpose, mobile, software controlled, ultrasonic diagnostic system. Its function is to acquire and display ultrasound images in Modes of operation include: B, M, PWD, CWD, Color Doppler, Amplitude Doppler, Combined mode(B+M, PW+B, Color+B, Power+B, PW+Color+B, Power+PW+B), Tissue Harmonic Imaging, Smart 3D, 4D, Matrix 4D, iScape View, TDI, Color M, Strain Elastography, Contrast imaging (Contrast agent for LVO), V Flow, STE, STQ, Contrast imaging (Contrast agent for Liver).

The Recho R9W, Recho R9, Recho R9 Pro, Recho R9 Exp, Recho R9S, Recho R9T, Crius R9 CV, Anesus R9 CV, Recho R9 Super, Recho R9 Lumi, Recho R CV, Recho R CVx Diagnostic Ultrasound System can also measure anatomical structures and offer analysis packages to provide information based on which the competent health care professionals can make the diagnosis.

This FDA 510(k) clearance letter for the Mindray Diagnostic Ultrasound Systems (K250020) explicitly states that no clinical studies were required or performed to support substantial equivalence.

Therefore, based on the provided document, there is no information available regarding:

• Acceptance criteria based on clinical performance.
• A study proving the device meets clinical performance, as none was conducted.
• Sample size for test sets or their provenance.
• Number/qualifications of experts for ground truth.
• Adjudication methods.
• MRMC studies or effect sizes.
• Standalone algorithm performance.
• Type of ground truth used.
• Sample size for training sets.
• How ground truth for training sets was established.

The substantial equivalence determination for this ultrasound system was based on non-clinical tests (acoustic output, biocompatibility, cleaning/disinfection, thermal/electrical/mechanical safety) and compliance with recognized medical safety standards.

The document highlights the following non-clinical tests and comparisons:

1. Acceptance Criteria & Reported Device Performance (Non-Clinical):

2. Sample Size and Data Provenance:
* Not applicable as no clinical studies were performed. The equivalence was based on engineering and performance testing against standards and predicate devices.

3. Number of Experts and Qualifications for Ground Truth:
* Not applicable as the substantial equivalence was not based on clinical performance studies involving expert interpretation.

4. Adjudication Method:
* Not applicable as no clinical studies were performed.

5. Multi Reader Multi Case (MRMC) Comparative Effectiveness Study:
* No MRMC study was done, as explicitly stated, "Clinical Studies: Not applicable."

6. Standalone Performance (Algorithm Only):
* Not applicable as this is a general-purpose diagnostic ultrasound system, and the clearance is for the device as a whole, not a specific AI algorithm with standalone clinical performance metrics. While AI/software features like "Auto Strain LV," "Auto Strain RV," "Auto VQ LA," "X-Vue," and "Quick View" are mentioned, their performance evaluation for 510(k) clearance was not based on a clinical trial but on comparison to cleared predicate devices that already have similar functionalities.

7. Type of Ground Truth Used:
* For the non-clinical tests, the "ground truth" was compliance with established engineering standards, regulatory limits (e.g., FDA acoustic output limits), and comparison to the technical specifications and performance of legally marketed predicate devices.

8. Sample Size for Training Set:
* Not applicable, as no information on specific machine learning model training sets or their sizes is provided for this 510(k) clearance. The focus is on the integrated ultrasound system's safety and effectiveness compared to predicates.

9. How Ground Truth for Training Set was Established:
* Not applicable, as no information on specific machine learning model training or associated ground truth establishment is provided.

In summary, the 510(k) clearance for this Mindray Diagnostic Ultrasound System was granted based on demonstrating substantial equivalence to predicate devices through non-clinical performance and safety testing, and compliance with recognized standards, rather than through new clinical performance studies.

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