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510(k) Data Aggregation
(59 days)
RADII
Polymerization of light curing dental materials with photo initiator for the wavelength range 440 – 480 nm.
Suitable for light curing composite restorative materials, anterior composites, posterior composites, bonding agents, pit and fissure sealants, orthodontic adhesive and flowable composites.
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I am sorry, but the provided text does not contain the information required to answer your request. The document is an FDA 510(k) clearance letter for a dental curing light (Radii), outlining its general information, regulation, and indications for use. It does not include details on acceptance criteria, study designs, sample sizes, expert qualifications, or ground truth establishment. Therefore, I cannot generate the table or the detailed description of a study as requested.
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(191 days)
CARDIAC PATHWAYS REFERENCE CATHETER AND REFERENCE CATHETER WITH TRACKING, CARDIAC PATHWAYS RADII CATHETER
AND RADII CATH
The Cardiac Pathways Tracking System catheters are indicated for cardiac electrophysiological mapping and delivering diagnostic pacing stimuli. In addition, the Tracking catheters are used with the Arrhythmia Mapping and Tracking System to provide catheter location information.
The Cardiac Pathways Tracking diagnostic catheters are indicated for cardiac electrophysiological mapping and delivering pacing stimuli. In addition, the Tracking and Reference Catheters are used with the Arrhythmia Mapping and Tracking System to provide catheter location information.
The Cardiac Pathways Arrhythmia Mapping and Tracking System allows the recording, viewing, and analysis of intracardiac electrograms and EKG signals to aid in the diagnosis and localization of cardiac arrhythmias. The System also allows the recording, viewing, and annotation of diagnostic electrophysiology (EP) catheter positions and electrode positions. The system facilitates the simultaneous recording of signals through connections to standard EP mapping catheters, specialized EP mapping catheters, and a 12-lead EKG.
The Cardiac Pathway Arrhythmia Mapping and Tracking System is intended for use in applications of diagnostic EP mapping and consists of the following:
- a signal recording computer system for interpreting mapping signals and documenting . locations of catheters and catheter electrodes,
- . electrogram signal amplifier electronics,
- ultrasound transmit and receive electronics,
- . a set of diagnostic electrophysiology reference catheters containing ultrasound ranging transducers and mapping electrodes (referred to as Reference Catheters, RV Reference Catheters, and CS Reference Catheters),
- one or more diagnostic electrophysiology tracking catheters containing ultrasound ranging transducers and mapping electrodes (referred to as Tracking Catheters, Steerable Catheters, and Radii Catheters with Tracking),
- . cabling to connect transducers and electrodes to recording equipment, and
- . software for interfacing the electronics and displaying catheter locations to the operator.
Here's an analysis of the provided text, focusing on acceptance criteria and study details:
1. Table of Acceptance Criteria and Reported Device Performance
The provided text does not explicitly state formal acceptance criteria with numerical targets. Instead, it describes general verification and validation activities. However, based on the performance data section, we can infer some criteria and the reported performance.
Acceptance Criteria (Inferred) | Reported Device Performance |
---|---|
Electrical Safety | Devices met specifications. |
Electrical Parameters within Specification | Devices met specifications (ee.g., continuity, short circuits, DC impedance, AC impedance, capacitance, dielectric strength, current leakage). |
Functional Performance | Devices met specifications. Software verification testing was performed and deemed acceptable for clinical use. |
Transducer Accuracy | Accuracy of the transducers was tested. (No specific numerical value given for transducers, but implied to be within acceptable limits for overall accuracy) |
Catheter Mechanical Properties (Joint strength, torque, deflection) | Devices met mechanical specifications. |
Biocompatibility | Testing indicated devices did not elicit toxicological responses. |
Tracking Function Accuracy (Key performance claim) | **In vitro and in vivo assessment showed tip location accuracy of |
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(64 days)
RADII DIAGNOSTIC ELECTROPHYSIOLOGY CATHETER, MODEL # 30411 B, C AND D
The Radii Diagnostic Electrophysiology Catheter is intended to be used to record intracardiac electrogram (EGM) signals and to deliver pacing pulses for the purpose of diagnostic provocative stimulation during an electrophysiology procedure.
The Radii Diagnostic Electrophysiology Catheter is a 7 F steerable, deflectable, quadrapolar catheter. It has a 4 mm tip electrode and three 1 mm ring electrodes in the flexible distal tip and a handle at the proximal end. The catheter is available in several curve sizes, two shaft stiffnesses, and two electrode spacings. The four electrodes at the distal end of the catheter include one 4 mm electrode at the distal tip, and three 1 mm ring electrodes placed at specified distances proximal to the tip electrode. One interelectrode spacing configuration is 2 mm, 5 mm, and 2 mm (2,5,2) and the other interelectrode spacing configuration is 2 mm, 2 mm, and 2 mm (2,2,2). Each of the electrodes is attached to a conductor that extends from the electrode to a specific pin in the connector in the handle. The shaft has two lumens, one for the electrode wires and the other for the pull-wire. To facilitate the transmission of rotational force, the shaft includes braiding sandwiched between layers of tubing. At the proximal end of the handle (i.e., farthest from the shaft), there is a connector for connecting the device to an external stimulator and electrophysiologic recorder. The knob utilized to deflect the tip is on the distal end of the handle (i.e., nearest to the shaft). This knob is connected to the tip by the pull-wire. Pulling the knob toward the connector causes the tip to deflect, with the extent of deflection controlled by the extent of movement of the knob. Pushing the knob toward the shaft causes the tip to straighten. Rotating the handle to the right rotates the catheter tip counterclockwise or clockwise, respectively (as viewed from the handle). The Radii Catheter connects to an electrophysiologic recorder using an EGM Cable designed specifically for the connector configuration on the recorder. Each cable has a connector on one end that mates to the connector on the Radii Catheter and a connector on the other end that mates to the recorder. Within the insulated cable bundle, each conductor is insulated. A separate cable is utilized for connecting the Radii Catheter to an external stimulator. Like the EGM Cables, this cable has a connector on one end that mates to the connector on the Radii Catheter and a connector on the other end that mates to the stimulator. Each conductor within the insulated cable bundle is insulated. Because many pacing stimulators do not contain protected-pin attachments (these are designed into the Cardiac Pathways cable), a Pin Adaptor is provided with the cable to allow for a variety of connection situations.
The provided text describes a medical device, the Radii Diagnostic Electrophysiology Catheter, and its 510(k) summary for premarket notification. However, it does not contain a detailed study proving the device meets specific acceptance criteria in terms of performance metrics like sensitivity, specificity, accuracy, or any clinical outcomes.
Instead, the document focuses on demonstrating substantial equivalence to predicate devices through:
- Device Description: Detailing the physical characteristics, materials, and functionality.
- Intended Use/Indications: Clearly stating the purpose of the device.
- Performance Data (Engineering Bench Testing): Summarizing that the device underwent electrical, mechanical, and biocompatibility testing and "met the specifications." This is typical for demonstrating safety and basic functionality in a 510(k) for such a device, rather than a clinical performance study with detailed statistical results.
Therefore, many of the requested elements (sample size for test set, data provenance, number of experts for ground truth, MRMC study, standalone performance, training set details) are not applicable or not found in this document because the type of study described is a series of engineering and bench tests, not a clinical trial or performance evaluation employing those methodologies.
Here's a breakdown of what can be extracted from the provided text:
Acceptance Criteria and Reported Device Performance
Acceptance Criteria | Reported Device Performance | Comments |
---|---|---|
Electrical Specifications (e.g., continuity, short circuits, DC/AC impedance, capacitance, dielectric strength, current leakage) | "The device met the specifications." | Specific quantitative values for "specifications" are not provided. |
Mechanical Specifications (e.g., joint strengths, ability to withstand multiple deflections) | "The device met the specifications." | Specific quantitative values for "specifications" are not provided. |
Biocompatibility | "Biocompatibility testing was performed to verify that the devices did not elicit toxicological responses." | Indicates compliance with biocompatibility standards, but specific test results or thresholds are not detailed. |
Study Details (Based on available information)
- Sample size used for the test set and the data provenance: Not explicitly detailed. The "test set" refers to physical units of the device and cables used for engineering bench testing, not a clinical data set. Data provenance is not applicable in the context of bench testing of physical devices.
- Number of experts used to establish the ground truth for the test set and the qualifications of those experts: Not applicable. Ground truth for engineering tests is based on predefined technical specifications and measurements, not expert clinical consensus.
- Adjudication method for the test set: Not applicable. Engineering tests rely on objective pass/fail criteria against specifications.
- If a multi-reader multi-case (MRMC) comparative effectiveness study was done: No, an MRMC study was NOT done. This type of study is relevant for diagnostic imaging or interpretation where human readers' performance is evaluated. The Radii Catheter is a diagnostic device for recording signals and delivering pacing, not for interpretation of complex clinical data by humans that would require an MRMC study.
- If a standalone (i.e. algorithm only without human-in-the-loop performance) was done: Not applicable. The Radii Catheter is a physical medical device, not an algorithm, so standalone algorithm performance is not a concept that applies.
- The type of ground truth used: For the electrical and mechanical tests, the ground truth was the predetermined engineering specifications and standards set for the device's components and overall function. For biocompatibility, it was compliance with biocompatibility standards to ensure no toxicological responses.
- The sample size for the training set: Not applicable. This refers to the training of an algorithm, which is not relevant to this device.
- How the ground truth for the training set was established: Not applicable.
Summary from the provided text:
The 510(k) summary focuses on demonstrating that the Radii Diagnostic Electrophysiology Catheter (and its associated cables) is substantially equivalent to existing legally marketed predicate devices. This is achieved by showing that it has the same intended use, similar technological characteristics, and that its performance (through electrical, mechanical, and biocompatibility bench testing) "met the specifications." The document confirms that the FDA reviewed this data and found the device substantially equivalent. The information provided is consistent with the requirements for a Class II medical device seeking 510(k) clearance, which primarily involves demonstrating safety and effectiveness through substantial equivalence, often relying heavily on non-clinical performance data (bench testing) rather than extensive clinical efficacy trials typically seen for novel, higher-risk devices or software.
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