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510(k) Data Aggregation
(135 days)
Mazor X System / Mazor X Stealth Edition
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(88 days)
Mazor X System (Mazor X Stealth Edition)
The Mazor X is indicated for precise positioning of surgical instruments or spinal implants during general spinal surgery. It may be used in open or minimally invasive or percutaneous procedures.
Mazor X 3D imaging capabilities provide a processing and conversion of 2D fluoroscopic projections from standard C Arms into volumetric 3D image. It is intended to be used whenever the clinician and/or patient benefits from generated 3D imaging of high contrast objects.
The Mazor X navigation tracks the position of instruments, during spinal surgery, in relation to the surgical anatomy and identifies this position on diagnostic or intraoperative images of a patient.
The Mazor X system combines robotic trajectory guidance with navigated surgical instruments (either guided or free hand navigation) to enable the surgeon to precisely position surgical instruments and/or implants according to predefined planning. With the imaging capabilities of the system, the user can also visualize the implants on the patients CT. Same as the predicate device the modified Mazor X consists of a workstation with dedicated software, the surgical system, navigation camera, accessories, instruments and disposable kits. The modified Mazor X, the subject of this 510(k) application, introduces software and hardware modifications to the Mazor X System cleared in 510(k) K203005.
The provided text is a 510(k) Summary for the Mazor X System (Mazor X Stealth Edition), detailing its substantial equivalence to a predicate device (K203005). The document focuses on comparing technological characteristics and asserting that modifications do not raise new safety or effectiveness concerns.
However, it does not contain a detailed study proving the device meets specific acceptance criteria in the manner requested by the prompt. This document is a regulatory submission demonstrating substantial equivalence, not a clinical study report with performance metrics like accuracy, sensitivity, or specificity against defined ground truth.
Therefore, many parts of your request for acceptance criteria and study details cannot be fulfilled from the provided text.
Here's what can be extracted and what is missing:
Device: Mazor X System (Mazor X Stealth Edition)
1. Table of Acceptance Criteria and Reported Device Performance
The document describes performance in terms of equivalence to a predicate device rather than specific acceptance criteria for a new study. The closest to "acceptance criteria" related to performance are the accuracy metrics established by the predicate device.
Characteristic | Acceptance Criteria (from predicate) | Reported Device Performance (Modified Mazor X) |
---|---|---|
Robotic Accuracy |
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(26 days)
Mazor X
The Mazor X is indicated for precise positioning of surgical instruments or spinal implants during general spinal surgery. It may be used in open or minimally invasive or percutaneous procedures.
Mazor X 3D imaging capabilities provide a procession of 2D fluoroscopic projections from standard C-Arms into volumetric 3D image. It is intended to be used whenever the clinician and/or patient benefits from generated 3D imaging of high contrast objects.
The Mazor X navigation tracks the position of instruments, during spinal surgery, in relation to the surgical anatomy and identifies this position on diagnostic or intraoperative images of a patient.
The Mazor X system combines robotic trajectory guidance with navigated surgical instruments (either guided or free hand navigation) to enable the surgeon to precisely position surgical instruments and/or implants according to predefined planning. With the imaging capabilities of the system, the user can also visualize the implants on the patients CT. The modified Mazor X, the subject of this 510(k) application, introduces software and hardware modifications to the original Mazor X System cleared in 510(k) K200935.
The provided text is a 510(k) premarket notification for the Mazor X system, which outlines the device's indications for use and states that the current submission is for software and minor hardware modifications to a previously cleared device (K200935).
It does not contain a detailed study proving the device meets specific acceptance criteria in the typical sense of a clinical trial. Instead, it focuses on verifying that the modifications to the already cleared device do not adversely affect its safety, effectiveness, and performance. The performance testing described is primarily focused on software validation and ensuring that the modifications did not degrade previously established accuracy metrics.
Therefore, many of the requested details, such as sample sizes for test sets, data provenance, number of experts for ground truth, adjudication methods, MRMC studies, standalone performance studies, etc., are not applicable or not provided in the given document for the current submission. The document refers to these metrics as previously established for the predicate device.
Here's an attempt to answer the questions based only on the provided text, highlighting where information is not available:
-
Table of acceptance criteria and reported device performance:
Acceptance Criteria (from predicate validation) Reported Device Performance (after modifications) Robotic guidance trajectory accuracy:
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(30 days)
Mazor X
The Mazor X is indicated for precise positioning of surgical implants during general spinal surgery. It may be used in open or minimally invasive or percutaneous procedures.
Mazor X 3D imaging capabilities provide a processing and conversion of 2D fluoroscopic prom standard C-Arms into volumetric 3D image. It is intended to be used whenever the clinician and/or patient benefits from generated 3D imaging of high contrast objects.
The Mazor X navigation tracks the position of instruments, during spinal surgery, in relation to the surgical anatomy and identifies this position on diagnostic or intraoperative images of a patient.
The modified Mazor X hosts guidance for spine procedures and intra-operative 3D image processing capabilities. It enables the surgeon to precisely position surgical instruments and/or implants. The planning of the surgical procedure and virtual placement of surgical instruments and/or implants (e.g., a screw) can be achieved through pre-operation planning based on the patient's CT scan or intra-operative planning based on Mazor X 3D Scan image or on a 3D image uploaded from an external 3D image acquiring system. The Mazor X enables accurate deployment of surgical accessories in the precise anatomical location according to predefined planning. With the imaging capabilities of the system, the user can also visualize the implants on the patients CT. The Mazor X is a device modification of the original Mazor X System cleared in 510(k) K182077.
This document is a 510(k) premarket notification for a medical device (Mazor X) and, as such, does not contain the detailed acceptance criteria and study data explicitly requested for the device's performance. The FDA 510(k) process focuses on demonstrating substantial equivalence to a predicate device, rather than requiring extensive clinical trials or detailed performance metrics against specific acceptance criteria.
However, based on the provided text, I can infer some aspects related to "acceptance criteria" through the lens of a 510(k) submission, mainly focusing on software and hardware validation, and the comparison to a predicate device for safety and effectiveness.
Here's a breakdown of the information that can be extracted or inferred, addressing your points where possible:
1. A table of acceptance criteria and the reported device performance
The document does not provide a table with specific quantitative acceptance criteria or detailed reported performance values for metrics like accuracy, sensitivity, or specificity. The "acceptance criteria" in this context are interpreted as the successful completion and verification of specified tests confirming the device's design requirements, safety, and functionality, particularly concerning software and hardware changes.
Acceptance Criteria Category (Inferred from 510(k) context) | Reported Device Performance (Inferred from 510(k) text) |
---|---|
Software Validation (2D fluoroscopic projection to 3D image conversion, navigation, planning, user interface, diagnostics, error handling, security, performance, robustness, installation, database) | "Software validation tests demonstrate that the Mazor X software version meets the design requirements." |
Hardware Changes Verification (System parts and accessories) | "The modified system parts and accessories were tested to verify that they meet the requirements." (Protocols identical to cleared Mazor X). |
Safety, Effectiveness, and Performance (Overall system) | "The modifications do not adversely affect the safety, effectiveness and performance of the Mazor X system." |
"The Mazor X system was tested according to the aforementioned validation and performance tests and found compliant." | |
"The Mazor X system is as safe, as effective and performs as well as the legally marketed Mazor X System predicate device." | |
Substantial Equivalence (Technological characteristics to predicate) | "The technological characteristics... of the Mazor X system are substantially equivalent to the predicate device cited above." |
2. Sample size used for the test set and the data provenance
The document does not specify a "sample size" in terms of number of patients, cases, or images for a test set. The validation described refers to software testing and hardware verification.
- Sample Size: Not specified for performance testing. The "test cases" for software validation are mentioned but their number is not provided.
- Data Provenance: Not applicable in the context of this 510(k) as it describes engineering verification and validation rather than clinical study data. There's no mention of country of origin or retrospective/prospective study for performance data.
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 "ground truth" for software and hardware validation is typically defined by engineering specifications and design requirements, rather than expert clinical review.
4. Adjudication method (e.g. 2+1, 3+1, none) for the test set
Not applicable/not provided. Adjudication methods are typically used in clinical studies involving human readers, which is not the focus of the performance tests described here.
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
No MRMC comparative effectiveness study is mentioned. The submission is for a device modification (software and minor hardware changes) to an existing cleared device, Mazor X System (K182077). The focus is on demonstrating that the modifications do not adversely affect safety and effectiveness and that the new device is substantially equivalent to the predicate. The device's capabilities include "precise positioning of surgical instruments or spinal implants" and "navigation tracks the position of instruments," but there are no details on improved human reader performance with or without AI assistance.
6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done
The document describes the device's functions (3D imaging from 2D fluoroscopic projections, instrument tracking, surgical planning). The software validation tests mentioned ("design requirements," "procedure simplicity," "performance and robustness," etc.) imply standalone algorithm performance was evaluated against its design specifications without explicit human-in-the-loop performance details in this document. However, the device itself is an assistance system for surgeons, so it inherently has a human-in-the-loop component for its intended use. The performance tests mentioned focus on the device's ability to meet its functional requirements.
7. The type of ground truth used (expert consensus, pathology, outcomes data, etc.)
The "ground truth" for the performance tests described here would be the design specifications and requirements of the software and hardware. For example, for "software validation testing," the ground truth is conformance to the established design requirements. For "hardware changes verification," the ground truth is meeting the technical requirements, presumably against engineering benchmarks or validated measurements. There is no mention of clinical outcomes data, pathology, or expert consensus being used as ground truth for these specific performance tests within this 510(k) summary.
8. The sample size for the training set
Not applicable. The document describes software validation and hardware verification of modifications to an existing device, not the development or training of a de novo AI algorithm using a separate training set.
9. How the ground truth for the training set was established
Not applicable, as no training set is discussed in this regulatory document.
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(93 days)
Mazor X System (Mazor X Stealth Edition)
The Mazor X is indicated for precise positioning of spinal implants during general spinal and brain surgery. It may be used in open or minimally invasive or percutaneous procedures.
Mazor X 3D imaging capabilities provide a processing and conversion of 2D fluoroscopic projections from standard C-Arms into volumetric 3D image. It is intended to be used whenever the clinician and/or patient benefits from generated 3D imaging of high contrast objects.
The Mazor X navigation tracks the position of instruments, during spinal surgery, in relation to the surgical anatomy and identifies this position on diagnostic or intraoperative images of a patient.
The Mazor X System integrates a new Navigation feature, which enables tracking compatible spine instruments. The previously cleared Mazor X System enables mechanical positioning of a tool or instrument and determining its orientation and trajectory. The new Navigation feature tracks the position of compatible surgical instruments in or on the patient anatomy during surgery and continuously updates the instrument position on the image of the patient's anatomy. The modified Mazor X System can operate with or without the Navigation feature.
This document describes the FDA's clearance of the Mazor X System (Mazor X Stealth Edition) and the supporting performance testing. It focuses on demonstrating substantial equivalence to predicate devices, particularly regarding a new navigation feature.
Here's an analysis of the provided text in response to your request, identifying what information is available and what is not:
1. A table of acceptance criteria and the reported device performance
The document does not provide a specific table of acceptance criteria with corresponding performance metrics like a clinical trial report would. Instead, it globally states that the "overall accuracy under worst-case scenario navigation tool positioning calculated the position and trajectory errors" and that the "software changes did not affect the previously cleared robotic guidance trajectory accuracy (i.e.
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(88 days)
CD HORIZON Spinal System Instruments for use with MAZOR X Stealth Edition
Medtronic Surgical Instruments are intended to be used during the preparation and placement of Medtronic implants during spinal surgery to assist the surgeon in precisely locating anatomical structures in either open, or minimally invasive, procedures. Medtronic Surgical Instruments are specifically designed for use with the MAZOR X Stealth™ Edition, which is indicated for any medical condition in which the use of stereotactic surgery may be appropriate, and where reference to a rigid anatomical structure, such as a skull, a long bone, or vertebra can be identified relative to a CT or MR-based model, fluoroscopy images, or digitized landmarks of the anatomy. Medtronic Surgical Instruments can be navigated or non-navigated manual instruments that may or may not be guided through the MAZOR X Arm Guide. Medtronic surgical drills shall only be used through the MAZOR X arm guides, Medtronic cannulas, and Medtronic drill guides. Some of the Medtronic Surgical Instruments are also compatible with the IPC™ POWEREASE™ System. An instrument may incorporate a measuring function which has uses as described on the label and the instrument.
DO NOT IMPLANT THE INSTRUMENTS
The CD HORIZON™ Spinal System surgical instruments are non-sterile, single or re-usable instruments that may be used during the preparation and placement of various Medtronic spinal implants during spinal surgery. The subject instruments are made of a variety of materials commonly used in orthopedic and neurological procedures which meet available national or international standards specifications. Single-use Medtronic Surgical instruments should never be reused under any circumstances.
The CD HORIZON™ instruments are specifically designed for use in spinal procedures with MAZOR X Stealth™ Edition. The instruments can be navigated or non-navigated manual instruments that may or may not be guided through the MAZOR X Arm Guide. Some instruments (e.g. drills, drivers, taps etc.) are also compatible with Medtronic's IPC™ POWEREASE™ System when connected to the POWEREASE™ Driver, these CD HORIZON™ instruments may or may not be guided through the MAZOR X Arm Guide. Medtronic surgical drills shall only be used through the MAZOR X arm guides, cannulas, and drill guides. Placing Medtronic single-use sterile spheres on each of the NavLock™ Tracker passive stems allow MAZOR X Stealth™ Edition to track the Medtronic instruments in the surgical field.
The document provided describes the CD HORIZON Spinal System Instruments for use with MAZOR X Stealth™ Edition. This is a medical device subject to FDA approval, specifically a 510(k) premarket notification. The document states that the device is substantially equivalent to a predicate device.
The provided text does not contain the detailed information requested regarding specific acceptance criteria, reported device performance metrics (e.g., sensitivity, specificity, accuracy), sample sizes for test or training sets, expert qualifications, or adjudication methods. The information pertains to the regulatory approval process and a general summary of performance testing.
Therefore, many parts of your request cannot be answered from the provided document. I can, however, extract the information that is present.
1. A table of acceptance criteria and the reported device performance
The document does not provide specific quantitative acceptance criteria or reported device performance metrics in the format of sensitivity, specificity, or accuracy, which are typical for AI/diagnostic devices. Instead, it lists general performance tests conducted.
Test Title | Description | Performance Outcome/Acceptance Criteria (as described) |
---|---|---|
Navigation Accuracy Analysis | Confirmed navigated instrument accuracy | "Confirmed navigated instrument accuracy" |
Anatomical Simulated Use | Confirmed instrument functionality under expected use conditions | "Confirmed instrument functionality under expected use conditions" |
Navigation Simulated Use | Confirmed navigation system functionality under expected use conditions | "Confirmed navigation system functionality under expected use conditions" |
CAD Model Evaluation | Verified that the CAD models are accurately reflected in the application software | "Verified that the CAD models are accurately reflected in the application software" |
Navigation Software Module Instrument Functional Testing | Verified that the instrument attributes are correctly implemented in the navigation software module. | "Verified that the instrument attributes are correctly implemented in the navigation software module." |
2. Sample sized used for the test set and the data provenance (e.g. country of origin of the data, retrospective or prospective)
The document does not specify the sample sizes used for any of the described tests, nor does it detail the provenance of any data (e.g., country of origin, retrospective/prospective nature). The tests are described as "simulated use" and "analysis" rather than clinical trials with patient data.
3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts (e.g. radiologist with 10 years of experience)
The document does not mention using experts to establish ground truth for a test set. The nature of the device (surgical instruments for navigation) suggests performance testing would involve engineering and functional verification rather than expert clinical assessment of diagnostic output.
4. Adjudication method (e.g. 2+1, 3+1, none) for the test set
The document does not mention any adjudication method, as it doesn't describe expert-based ground truth establishment or a review process for a test set in the context of diagnostic performance.
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
The document does not indicate that an MRMC comparative effectiveness study was done. This device is a set of surgical instruments used with a navigation system (MAZOR X Stealth™ Edition), not typically an AI-powered diagnostic device that assists human readers.
6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done
This request is not applicable to the device described. The device consists of surgical instruments that are part of a system intended for human use during surgery. It is not an algorithm that can perform standalone diagnostics or analysis.
7. The type of ground truth used (expert consensus, pathology, outcomes data, etc.)
The concept of "ground truth" in the diagnostic sense (e.g., pathology for a diagnosis) is not directly applicable here. The "ground truth" for the performance tests would likely be engineering specifications, physical measurements, and expected functional behavior of the instruments and system. For instance, "Navigation Accuracy Analysis" would involve comparing the navigated position to an objectively measured physical position, which is a form of engineering ground truth.
8. The sample size for the training set
The document does not mention a training set specific to an AI algorithm. This device is a set of physical surgical instruments, not a machine learning model that requires training data.
9. How the ground truth for the training set was established
Not applicable, as no training set for an AI algorithm is mentioned or relevant to this device description.
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(87 days)
Mazor X
The Mazor X is indicated for precise positioning of surgical implants during general spinal and brain surgery. It may be used in either open or minimally invasive or percutaneous procedures.
Mazor X 3D imaging capabilities provide a processing and conversion of 2D fluoroscopic projections from standard C-Arms into volumetric 3D image. It is intended to be used whenever the clinician and/or patient benefits from generated 3D imaging of high contrast objects.
The Mazor X hosts guidance for spine and brain procedures and intra-operative 3D image processing capabilities. It enables the surgeon to precisely position surgical instruments and/or implants (in spinal surgery). The planning of the surgical procedure and virtual placement of surgical instruments and/or implants (e.g., a screw) can be achieved through pre-operation planning based on the patient's CT scan or intraoperative planning based on Mazor X 3D Scan image or on a 3D image uploaded from an external 3D image acquiring system. The Mazor X enables accurate deployment of surgical accessories in the precise anatomical location according to predefined planning. With the imaging capabilities of the system, the user can also visualize the implants on the patients CT. The Mazor X is a device modification of the original Mazor X System cleared in 510(k) K163221.
The provided text describes a 510(k) premarket notification for the "Mazor X" device. This submission is for a modification of an existing device (Mazor X System, K163221), and therefore, the performance testing focuses on demonstrating that the modifications do not adversely affect the device's safety, effectiveness, and performance compared to the predicate device.
Here's an analysis of the acceptance criteria and study information based on the provided text:
Limited Information on Acceptance Criteria and Studies:
It's important to note that this 510(k) summary focuses on demonstrating substantial equivalence of a modified device to a predicate device. As such, it does not detail a comprehensive study establishing novel acceptance criteria or a full clinical study with specific performance metrics (like sensitivity, specificity, accuracy) that would be typical for a new device's initial clearance or a comparative effectiveness study. The "acceptance criteria" here are primarily about demonstrating that the modified device performs as well as the predicate and meets its design requirements.
1. Table of Acceptance Criteria and Reported Device Performance
Since this is a modification submission, the "acceptance criteria" are implicitly tied to maintaining the performance and safety established by the predicate device and meeting design requirements for the modifications. Specific quantitative performance metrics are not provided in this document in a tabular format.
Acceptance Criteria (Implicit from text) | Reported Device Performance |
---|---|
Software Validation: Meet design requirements of the Mazor X software version. | Demonstrated compliance through validation testing for procedure simplicity, system startup, security, user interfaces, diagnostics, error handling, performance, robustness, installation, and database. |
Mazor X Align Module Functionality: Maintain or improve performance of the original Align module after modifications. | Retested according to the same functionality as the original Mazor X Align module, including: Validation of changes related to updating CT-based fluoroscopy images and pre-operative registration method (CT-Xray). Validation of lateral positioning. Validation of modifications to the vertebral end-plates recognition algorithm. Integration testing of the modified system. |
Safety, Effectiveness, and Performance: Modifications should not adversely affect these aspects compared to the predicate. | The performance testing and comparison to the predicate device demonstrated that the Mazor X system is as safe, as effective, and performs as well as the legally marketed Mazor X System predicate device. The Mazor X system was tested according to the aforementioned validation and performance tests and found compliant. |
2. Sample Size Used for the Test Set and Data Provenance
The document does not explicitly state sample sizes for tests. The descriptions focus on "validation testing" and "retesting" of specific modules and algorithms. It does not mention clinical studies with human patient data or specific "test sets" in the context of typical AI/machine learning evaluation (e.g., a set of patient images for diagnostic accuracy).
- Sample Size: Not specified.
- Data Provenance: Not specified. The tests are described as software validation testing and functionality testing for the modified Align module. This implies testing with internal data or synthetic data relevant to the software functionalities, rather than patient data from specific countries or retrospective/prospective studies.
3. Number of Experts Used to Establish Ground Truth for the Test Set and Their Qualifications
Given the nature of the tests described (software and functionality validation), there's no indication that a "ground truth" was established by medical experts for a diagnostic or interventional task, which would typically involve human reviewers. The tests are against design requirements and algorithmic performance.
- Number of Experts: Not mentioned.
- Qualifications: Not mentioned.
4. Adjudication Method for the Test Set
No adjudication method is mentioned, as the described tests are technical validations against specifications and functionality rather than human-interpreted diagnostic outcomes.
5. Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study
No MRMC study is mentioned. The document focuses on demonstrating that the modified device is as safe and effective as the predicate device, not on comparing human performance with and without AI assistance.
- Effect Size of Human Readers Improve: Not applicable; no MRMC study reported.
6. Standalone (Algorithm Only) Performance Study
The performance tests mentioned are for the integrated "Mazor X system" and its "software version" and "Align module." While these are tests of the algorithm's functionality, the document describes the system as enabling surgeons to position instruments and implants, and its imaging capabilities provide processing and conversion of fluoroscopic projections. This suggests the algorithm's performance is tested within the context of its intended function as part of a surgical guidance system, rather than as a standalone diagnostic tool. The "algorithm only" performance is embedded within the "Software validation testing" and "retraining" of the Align module.
7. Type of Ground Truth Used
The "ground truth" for the reported tests appears to be based on:
- Design requirements/specifications: For the software validation.
- Established functionality of the original Mazor X Align module: For retesting the modified Align module.
- Algorithmically derived correct states: For parameters like lateral positioning validation and vertebral end-plates recognition.
It is not based on expert consensus, pathology, or outcomes data as these are not clinical studies.
8. Sample Size for the Training Set
No information about a training set is provided. This 510(k) pertains to a device modification and validation, not the initial development or training of a machine learning model from scratch where a distinct "training set" would typically be detailed. The "software optimization" and "enhanced functionalities" likely involved development and testing, but the specific "training set" for any underlying machine learning components is not discussed.
9. How the Ground Truth for the Training Set Was Established
Not applicable, as no training set is described in this document.
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(25 days)
Mazor X
The Mazor X is indicated for precise positioning of surgical instruments or spinal implants during general spinal and brain surgery. It may be used in either open or minimally invasive or percutaneous procedures.
Mazor X 3D imaging capabilities provide a processing and conversion of 2D fluoroscopic projections from standard C-Arms into volumetric 3D image. It is intended to be used whenever the clinician and/or patient benefits from generated 3D imaging of high contrast objects.
The Mazor X hosts guidance for spine and brain procedures and intra-operative 3D image processing capabilities. It enables the surgeon to precisely position surgical instruments and/or implants (in spinal surgery). The planning of the surgical procedure and virtual placement of surgical instruments and/or implants (e.g., a screw) can be achieved through pre-operation planning based on the patient's CT scan or intraoperative planning based on Mazor X 3D Scan image or on a 3D image uploaded from an external 3D image acquiring system. The Mazor X enables accurate deployment of surgical accessories in the precise anatomical location according to predefined planning. With the imaging capabilities of the system, the user can also visualize the implants on the patients CT.
This document is a 510(k) premarket notification for the Mazor X device, which is a stereotaxic instrument for spinal and brain surgery. The document is primarily focused on demonstrating substantial equivalence to previously cleared devices rather than providing detailed study results against specific acceptance criteria. Therefore, much of the requested information regarding specific acceptance criteria and study details demonstrating compliance is not present in this document.
Here's a breakdown of the available information and what is not explicitly stated:
1. Table of Acceptance Criteria and Reported Device Performance
This information is not explicitly stated in the provided document. The 510(k) focuses on demonstrating substantial equivalence to predicate devices, not on meeting predefined performance acceptance criteria with specific metrics.
2. Sample Size Used for the Test Set and Data Provenance
This information is not explicitly stated in the provided document. The document mentions "Performance Testing" but states that "No additional performance tests were required for the modified Mazor X system" because the modifications do not adversely affect safety, effectiveness, and performance. This implies that the current submission relies on the existing evidence for the unmodified Mazor X system and predicate devices, but the details of those studies are not included here.
3. Number of Experts Used to Establish Ground Truth for the Test Set and Their Qualifications
This information is not explicitly stated in the provided document.
4. Adjudication Method for the Test Set
This information is not explicitly stated in the provided document.
5. If a Multi Reader Multi Case (MRMC) Comparative Effectiveness Study Was Done, and the Effect Size of How Much Human Readers Improve with AI vs. Without AI Assistance
This information is not explicitly stated in the provided document. The device is a surgical guidance system, not an AI-based diagnostic tool for "human readers." Therefore, an MRMC study in this context is unlikely to be relevant in the way it's described for diagnostic AI. The document describes the Mazor X as enabling precise positioning of instruments and providing 3D imaging capabilities, implying a direct guidance role for the surgeon, rather than an assistive role for human "readers."
6. If a Standalone (i.e., algorithm only without human-in-the-loop performance) Was Done
This information is not explicitly stated in the provided document. However, the device description emphasizes its role in "guidance" and enabling the surgeon to "precisely position surgical instruments." This suggests it's inherently a human-in-the-loop system, making a standalone algorithm-only performance study less directly applicable to its intended use in the absence of more detailed information.
7. The Type of Ground Truth Used (Expert Consensus, Pathology, Outcomes Data, etc.)
This information is not explicitly stated in the provided document. Given its function as a surgical guidance system, ground truth would likely relate to the accuracy of instrument placement or implant positioning, potentially verified through intraoperative or post-operative imaging, or by clinical outcomes, but no details are provided here.
8. The Sample Size for the Training Set
This information is not explicitly stated in the provided document. Given the nature of a surgical guidance system, the "training set" might refer to data used for developing the planning algorithms or image processing, but no specifics are provided.
9. How the Ground Truth for the Training Set Was Established
This information is not explicitly stated in the provided document.
In summary, the provided 510(k) document for the Mazor X focuses on demonstrating substantial equivalence to predicate devices based on design, materials, mechanism of action, and intended use, rather than presenting detailed performance study results against specific acceptance criteria. Therefore, specific details about acceptance criteria, test set sizes, expert involvement, ground truth establishment, and comparative effectiveness studies are not included in this particular document.
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(139 days)
Mazor X
The Mazor X is indicated for precise positioning of surgical implants during general spinal and brain surgery. It may be used in either open or minimally invasive or percutaneous procedures.
Mazor X 3D imaging capabilities provide a processing and conversion of 2D fluoroscopic projections from standard C-Arms into volumetric 3D image. It is intended to be used whenever the clinician and/or patient benefits from generated 3D imaging of high contrast objects.
The Mazor X enables the surgeon to precisely position surgical instruments and/or implants (in spinal and brain surgery). The Mazor X enables guidance for spine and brain procedures and intra-operative 3D image processing capabilities. The planning of the surgical procedure and virtual placement of surgical instruments and/or implants (e.g., a screw) can be achieved through pre-operation planning based on the patient's CT scan or intra-operative planning based on Mazor X 3D Scan image or on a 3D image uploaded from an external 3D image acquiring system. The Mazor X enables accurate deployment of surgical accessories in the precise anatomical location according to predefined planning. With the imaging capabilities of the system, the user can also visualize the implants on the patients CT. The Mazor X is a device modification of the original Renaissance X System cleared in 510(k) K152041.
This document describes the Mazor X, a device for precise positioning of surgical implants during spinal and brain surgery, and its substantial equivalence to predicate devices. It focuses on the device's software validation and measurement comparison testing.
Here's a breakdown of the requested information based on the provided text:
1. Table of Acceptance Criteria and Reported Device Performance
The document does not explicitly present a table of "acceptance criteria" and "reported device performance" in the typical quantitative sense for clinical metrics like accuracy, sensitivity, or specificity. Instead, it discusses performance testing related to software and measurement comparison.
Acceptance Criteria (Implied) | Reported Device Performance |
---|---|
Software meets design requirements (per FDA Guidance & IEC 62304) | Software validation tests demonstrate modified software meets design requirements. |
X Align module measurements comparable to Surgimap's calculations | Measurement Comparison testing showed comparison of the X Align module and the Surgimap measurement calculations. (Implies comparability, though no specific metrics are given). |
Device is safe and effective as predicate devices | Performance testing and comparison demonstrate Mazor X is as safe, as effective, and performs as well as predicate devices. |
2. Sample Size Used for the Test Set and Data Provenance
- Test Set Sample Size: Not specified for the software validation or measurement comparison testing. The document states "software validation tests" and "measurement comparison testing" were performed, but no number of samples or cases is given.
- Data Provenance: Not specified. It's unclear if these tests involved patient data, simulated data, or a combination. The document mentions "pre-operation planning based on the patient's CT scan" and "intra-operative planning based on Mazor X 3D Scan image," suggesting potential use of imaging data, but the source (country, retrospective/prospective) for the testing itself is not detailed.
3. Number of Experts Used to Establish Ground Truth and Qualifications
This information is not provided in the document. The performance testing described (software validation, measurement comparison) doesn't inherently require expert-established ground truth in the same way a clinical diagnostic study would. The "ground truth" for software validation would be its functional specifications, and for measurement comparison, it would be the accepted calculations of the predicate device (Surgimap).
4. Adjudication Method for the Test Set
This information is not provided. Given the nature of the described tests (software validation, measurement comparison), a multi-reader adjudication method would not typically apply.
5. If a Multi Reader Multi Case (MRMC) Comparative Effectiveness Study was done
No, a multi-reader multi-case comparative effectiveness study is not mentioned in the document. The testing described focuses on standalone device performance (software and measurement capabilities) compared to a predicate device's calculations, rather than comparing human reader performance with and without AI assistance.
6. If a Standalone (i.e. algorithm only without human-in-the-loop performance) was done
Yes, the described performance testing appears to be a standalone (algorithm only) assessment. The software validation tests demonstrate the modified software's adherence to design requirements, and the measurement comparison tests evaluate the X Align module's calculations against Surgimap's, implying an assessment of the algorithm's output rather than human interaction with it.
7. The Type of Ground Truth Used
- For software validation: The "ground truth" would be the design requirements and specifications of the software, as outlined in the FDA Guidance for Premarket Submissions for Software Contained in Medical Devices and the IEC 62304 standard.
- For measurement comparison: The "ground truth" for the X Align module's performance would be the measurement calculations derived from the predicate device, Surgimap.
8. The Sample Size for the Training Set
This information is not provided. The document details performance testing (validation and comparison) but does not discuss the development or training of any machine learning components, nor any associated training set sizes.
9. How the Ground Truth for the Training Set was Established
This information is not provided, as the document does not mention a training set or the establishment of its ground truth.
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