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510(k) Data Aggregation
(633 days)
OXFORD INSTRUMENTS MEDICAL SYSTEMS
The Sonicaid® System 8002 is for use in pregnancies from 32 weeks gestation and greater. It can be used on women who are experiencing Braxton-Hicks contractions but is not suitable for use in established labour as the fetus is then exposed to additional factors such as labour contractions, pharmacological agents, epidural anaesthesia, and the possibility of fetal infection secondary to ruptured membranes. Typical indications for use include the following:
- previous questionable fetal heart rate recordings or poor obstetric history
- abnormal umbilical blood flow vekveity waveforms
- suspected fotal anomalies
- suspicion of maternal intoxication or assault
- intrauterine growth retardation
- antepartum haemorrhage
- -- uterine pain
- reduced fetal movements
- hypertension or pre-eclampsia
- reduced amniotic fluid volume
The Sonicaid® System 8002 is used as an adjunct to and is not intended to replace or substitute The Someation of ammiotic fluid amount, Doppler evaluations, and/or biophysical profile.
The Sonicaid® System 8002 is a software accessory for the computerized analysis of antepartum cardiotocograms (CTGs) in pregnancies from 32 weeks gestation onwards. It informs the clinician whether a CTG meets a number of criteria that are indicative of a normal CTG.
Here's an analysis of the provided text regarding the Sonicaid® System 8002, focusing on acceptance criteria and the study that proves its performance:
1. Table of Acceptance Criteria and Reported Device Performance:
The provided document does not explicitly state numerical acceptance criteria in a table format. Instead, it describes the device's function: "The Sonicaid® System 8002 informs the clinician whether a CTG meets a number of criteria that are indicative of a normal CTG."
The "Performance Studies" section broadly states: "Software verification studies were performed in-house to ensure what are "indicative" of a "normal" CTG criteria, and clinical validation studies have been performed and documented supporting the use of these criteria in the determination of a normal CTG."
Without specific metrics or thresholds, a direct numerical comparison is not possible.
2. Sample Size Used for the Test Set and Data Provenance:
The document does not provide information on the sample size used for the test set or the data provenance (e.g., country of origin, retrospective or prospective nature of the clinical validation studies).
3. Number of Experts Used to Establish Ground Truth for the Test Set and Qualifications of Those Experts:
The document does not specify the number of experts used to establish ground truth or their qualifications. It only refers to "clinical validation studies."
4. Adjudication Method for the Test Set:
The document does not describe any adjudication method (e.g., 2+1, 3+1) for the test set.
5. Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study:
The document does not mention an MRMC comparative effectiveness study, nor does it provide an effect size for human readers improving with or without AI assistance.
6. Standalone (Algorithm Only) Performance:
The document indicates that "Software verification studies were performed in-house" and "clinical validation studies have been performed and documented." This implies that the device's performance was evaluated, likely in a standalone capacity given that it's a "software accessory for the computerized analysis of antepartum cardiotocograms." However, the specific details of this standalone performance, such as metrics (accuracy, sensitivity, specificity), are not provided in this summary.
7. Type of Ground Truth Used:
The document states that the device "informs the clinician whether a CTG meets a number of criteria that are indicative of a normal CTG." It further mentions "clinical validation studies...supporting the use of these criteria in the determination of a normal CTG." This suggests that the ground truth for "normal CTG" was established through expert clinical consensus based on established criteria for interpreting cardiotocograms. It is not explicitly stated to be pathology or outcomes data.
8. Sample Size for the Training Set:
The document does not provide details on the sample size used for a training set. Given that this is a 510(k) summary, which often focuses on validation rather than development, this information might not be included.
9. How the Ground Truth for the Training Set Was Established:
The document does not explicitly describe how ground truth for a training set was established. It only refers to "software verification studies" and "clinical validation studies" which informed the "indicative" criteria for a normal CTG. Assuming a machine learning approach, the "criteria that are indicative of a normal CTG" would likely form the basis of the ground truth labels for any training data.
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(185 days)
OXFORD INSTRUMENTS MEDICAL SYSTEMS
The Synergy IOM System is a 2, 5, or 10 channel electromyograph which provides facilities for EMG, EEG, Evoked Potentials, ECG and NCV testing to be used for Intra-Operative Monitoring.
The Synergy IOM System is a 2, 5, or 10 channel electromyograph.
The provided text is an FDA 510(k) clearance letter and an Indications for Use statement for the "Oxford Instruments Synergy IOM System". This type of document generally confirms that a device is substantially equivalent to a predicate device and can be marketed. It does not typically contain detailed information about specific acceptance criteria or the study data used to demonstrate performance against those criteria in the way a medical device performance study report would.
Therefore,Based on the provided text, the following information is not available:
- A table of acceptance criteria and the reported device performance: This document does not specify quantitative acceptance criteria or report performance metrics (e.g., accuracy, sensitivity, specificity, F1 score).
- Sample size used for the test set and the data provenance: No information about a test set, its size, or country of origin (e.g., retrospective or prospective) is provided.
- Number of experts used to establish the ground truth for the test set and the qualifications of those experts: This information is not present.
- Adjudication method for the test set: No details on adjudication are available.
- If a multi-reader multi-case (MRMC) comparative effectiveness study was done, and its effect size: This document does not mention such a study or its results.
- If a standalone (i.e., algorithm only without human-in-the-loop performance) was done: The Synergy IOM System is described as an electromyograph for various physiological signal testing, implying it's a diagnostic tool that likely requires human interpretation, rather than a standalone AI algorithm. No AI algorithm performance is discussed.
- The type of ground truth used: Ground truth definition is not discussed.
- The sample size for the training set: There is no mention of a training set, as this is not an AI/ML device in the context of the document.
- How the ground truth for the training set was established: Not applicable, as no training set is discussed.
What is available from the text:
- Device Name: Oxford Instruments Synergy IOM System
- Regulatory Class: II
- Product Code: IKN and CAB
- Indications for Use: "The Synergy IOM System is a 2, 5, or 10 channel electromyograph which provides facilities for EMG, EEG, Evoked Potentials, ECG and NCV testing to be used for Intra-Operative Monitoring."
- Study described: The document is a 510(k) premarket notification response, indicating that the device has been found "substantially equivalent" to legally marketed predicate devices. This equivalence is the basis for its clearance, rather than a specific performance study against defined acceptance criteria (as would be seen for novel devices or AI/ML components).
- Ground Truth (implied): For a 510(k) clearance based on substantial equivalence, the "ground truth" and performance of the predicate device (which is not explicitly named in this excerpt but would have been part of the 510(k) submission) serve as the benchmark. The implication is that the Synergy IOM System performs comparably to the predicate for the stated indications.
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(55 days)
OXFORD INSTRUMENTS MEDICAL SYSTEMS
The Medilog FD4 Hoher monitor is intended to be used in the diagnosis of various cardiac disorders by the recording of ECG in an ambulatory mode. These disorders principally include cardiac arrhythmia's and myocardial ischeamia.
The ECG data is used by the physician as an aid in the diagnosis of the patients condition. In some circumstances the patient may be hospitalised as part of the medical evaluation and Holter monitoring may be performed in conjunction with other non-invasive or invasive procedures. In such cases there is no interaction between the FD4 and other equipment.
Decer poton it looks like an MR63. The difference being the analogue cassette mechanism has been replaced with a digital acquisition module containing a slot for a PCMCIA Flash ATA card.
The patient is connected to the FD4 via disposable electrodes attached to the chest. These detect the electrical signals generated by the heart, which are then transferred to the recorder via the electrode leads and patient cable. In the recorder, these signals are amplified, filtered, digitised and compressed without loss before being stored on a removable PCMCIA Flash ATA card. At the completion of recording the flash memory card is removed and the recorded ECG data is replayed and analysed on the Oxford Instruments ECG Analysis System.
Here's a breakdown of the acceptance criteria and the study proving the device meets them, based on the provided text:
Acceptance Criteria and Device Performance
1. Table of Acceptance Criteria and Reported Device Performance
Acceptance Criteria Category | Specific Criteria | Reported Device Performance (FD4) |
---|---|---|
Performance Bench Tests | Input dynamic range meets American National Standard EC38 requirements. | FD4 meets all requirements of American National Standard EC38. |
Gain accuracy meets American National Standard EC38 requirements. | FD4 meets all requirements of American National Standard EC38. | |
System noise meets American National Standard EC38 requirements. | FD4 meets all requirements of American National Standard EC38. | |
Multichannel crosstalk meets American National Standard EC38 requirements. | FD4 meets all requirements of American National Standard EC38. | |
Frequency response meets American National Standard EC38 requirements. | FD4 meets all requirements of American National Standard EC38. | |
Minimum feature size meets American National Standard EC38 requirements. | FD4 meets all requirements of American National Standard EC38. | |
Meets draft British Standard Electrical Equipment - part 2: Particular requirements for safety - section 2.47: specification for ambulatory electrocardiographic monitors. | FD4 meets all requirements of the draft British Standard. | |
Trial Performance | Recording lasted for its intended duration. | All recordings (29 total) met this criterion. |
Patient events detected. | All recordings (29 total) met this criterion. | |
Signal quality and gain comparable with the predicate device (Medilog MR63), where applicable. | All recordings (29 total) met this criterion. | |
No problems with either the recording or the replay. | All recordings (29 total) met this criterion. | |
Successful review by Oxford Instruments clinical specialist. | All recordings (29 total) met this criterion. | |
Technical Specifications | Improved, updated standards including EC38 performance (compared to MR63). | FD4 complies with IEC 601-1, UL 2601-1, AAMI EC38, 93/42/EEC (MDD). The MR63 complied with older standards (IEC 601-1, UL 544, 93/42/EEC). |
Improved operating range (temperature). | FD4: 0 °C to 45 °C (compared to MR63: 5 °C to 40 °C). | |
Improved frequency response (due to digital recording). | FD4: 0.05Hz - 40 Hz (compared to MR63: 0.5Hz - 25Hz). | |
Lower typical peak-to-peak noise over input bandwidth. | FD4: |
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(263 days)
OXFORD INSTRUMENTS MEDICAL SYSTEMS
Recording of a physiological signals (single channel of EEG, and or recording of ECG signals at 64 Hz) that are required to aid in the diagnoses of sleep related disorders.
Medilog MPA-S Recorder
The provided text is a 510(k) premarket notification letter from the FDA regarding a medical device called the "Medilog MPA-S Recorder." This document primarily addresses regulatory approval and does not contain information about acceptance criteria, study methodologies, or performance data for the device.
Therefore, I cannot fulfill your request to describe the acceptance criteria and the study that proves the device meets them based on the provided text. The document is a regulatory approval letter, not a scientific study report.
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