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510(k) Data Aggregation
(268 days)
Offcenter, mXACT Total Prosthesis Center and mXACT PRO Total Prosthesis Kit Regulation Number: 21 CFR 874.3495
Replacement Prostheses
(Ear, Nose & Throat) | Class II | ETA | 874.3495
INTENDED USE: The passive middle ear implant - tympanoplasty total prosthesis is intended to be used for replacement of components of the ossicular chain, if at least the stapes footplate is present and functional. The tympanoplasty total prosthesis is implanted in the middle ear to restore sound transmission from the tympanic membrane to the oval window by replacing the ossicles totally. The tympanoplasty prosthesis is a medical device for single use delivered in sterile condition.
INDICATIONS: The tympanoplasty prosthesis is indicated to treat patients with: - congenital or acquired ossicular chain defects (e.g., chronic otitis media, traumatic injury, malformation, cholesteatoma) - inadequate conductive hearing from previous middle ear surgery The total ossicular replacement prosthesis is indicated, if at least the stapes footplate is present and functional.
Tympanosplasty Sizers for total prosthesis INTENDED USE The tympanoplasty Sizers are intended to be used during a total ossicular replacement surgery to determine the required functional length of the MED-EL tympanoplasty prosthesis. The tympanoplasty Sizers are optional, single-use surgical tools for intraoperative transient use only and delivered in sterile condition. The Sizers for total prosthesis are intended to intraoperatively determine the distance between the footplate of the stapes and the tympanic membrane, thereby determining the required functional length of the MED-EL tympanoplasty prosthesis.
INDICATIONS The indications of the PMEI tympanoplasty total prostheses apply.
The MED-EL "Passive Middle Ear Implants" (PMEls) Tympanoplasty Total Prostheses are total ossicular replacement prostheses which restore the mechanical sound transmission to the oval window. They are offered in different designs and fixed or adjustable functional length to allow the surgeon to have more flexibility in terms of selecting the correct prosthesis according to the individual patient's anatomical needs, and the surgeon's surgical preferences and proficiency.
The provided document describes the safety and effectiveness of the MED-EL PMEI Tympanoplasty Total Prostheses. Here's an analysis of the acceptance criteria and the study that proves the device meets those criteria:
Acceptance Criteria and Device Performance
The core acceptance criterion for the PMEI Tympanoplasty Total Prostheses is based on audiological outcomes, specifically the closure of the postoperative pure tone average (PTA4) air-bone gap (ABG).
Table 1: Acceptance Criteria and Reported Device Performance
Acceptance Criteria (Target Outcome) | Reported Device Performance (Achieved Outcome) |
---|---|
Postoperative PTA4 ABG ≤ 20 dB in 48.3-57.4% of patients (state-of-the-art) | 53.3% of patients achieved a postoperative PTA4 ABG ≤ 20 dB |
Note regarding other criteria: While not explicitly stated as "acceptance criteria" with numerical targets, the document also implies the following are critical for acceptance and are demonstrated by the testing:
- Biocompatibility: The device should be biocompatible for its intended use.
- Sterility: The device must be sterile (SAL
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(144 days)
Trade/Device Name: Grace Dynamic Ossicular Replacement Prosthesis Regulation Number: 21 CFR 874.3495
An ossicular replacement prosthesis is a device intended to be implanted for the functional reconstruction of segments of the ossicular chain and facilitates the conduction of sound wave from the tympanic membrane to the inner ear. Ossicular replacement prostheses are indicated for the functional restoration of the ossicular chain when a conductive hearing loss is present. Indications for use include:
(a) Chronic middle ear disease,
(b) Otosclerosis,
(c) Congenital fixation of the stapes,
(d) Secondary surgical intervention to correct for a significant and persistent conductive hearing loss from prior otologic surgery, and
(e) Surgically correctible injury to the middle ear from trauma.
The Grace Dynamic Ossicular Replacement Prostheses are manufactured from the same materials as the predicate devices:
(i) Unalloyed titanium (ASTM F67)
(ii) Titanium alloy (ASTM F136)
(iii) Medical Grade Silicone
(iv) ASTM F1185 Hydroxylapatite
The provided document is a 510(k) summary for the Grace Dynamic Ossicular Replacement Prostheses. This type of regulatory document focuses on establishing substantial equivalence to predicate devices based on intended use, materials, and technological characteristics. It does not contain information about acceptance criteria or a study proving that the device meets specific performance criteria in the way a clinical or performance study report for a diagnostic AI device would.
Therefore, I cannot extract the requested information (acceptance criteria, device performance, sample sizes, ground truth establishment, expert qualifications, MRMC studies, standalone performance, or training set details) because this document does not contain that type of data.
The 510(k) summary states: "Differences between the Grace Dynamic Ossicular Replacement Prostheses and the predicate devices should not affect the safety or effectiveness." This statement, along with the comparison of materials and intended use to predicate devices, forms the basis of the "proof" for substantial equivalence in this context, rather than a detailed performance study with quantifiable acceptance criteria.
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(94 days)
Re:
Trade/Device Name: Total/Partial Ossicular Replacement Prosthesis Regulation Number: 21 CFR 874.3495
Otosurgical prosthesis of the middle ear, implanted, in a permanent manner, in patients affected with pathologies of the middle ear.
Audio prostheses are successfully employed in case of otosclerosis, stapedo-vestibular ankylosis, outxome of otitis media, trauma, middle ear congenital malformations. Possible complication due to the use of prostheses in the middle ear include. fixation, displacement, extrusion of the prosthesis, incus necrosis, tympanic membrane perforation, perilymph fistula, labyrinthitis, otitis media, occlusion of oval and round window.
Some of the prostheses are manufactured in different lengths, some others shall be trimmed during the surgical operation. Nevertheless the length of all the prostheses should be carefully assessed by means of a microsurgical qauge (code 02.14) The implant must be carried out by a qualified surgeon.
Otosurgical prosthesis of the middle ear, implanted, in a permanent manner, in patients affected with pathologies of the middle ear.
Otosurgical prosthesis of the middle hear, are manufactured from a wide variety of materials: titanium, poliethylene (PE), stainless steel, hydroxylapatite (HA). platinum (Pt). politetrafluoroethylene (PTFE), gold, polimetilxilossano (silicon) and Nitinol, or combination of these materials.
Numerous designs are available for replacement of any or all of the bones of the ossicular chain.
The provided document is a 510(k) premarket notification for an "Audio Prosthesis" (Total/Partial Ossicular Replacement Prosthesis). It describes the device, its intended use, indications for use, and a comparison to predicate devices, but it does not contain information about acceptance criteria or a study proving the device meets acceptance criteria.
The document states that the device is "substantially equivalent" to legally marketed predicate devices based on having the same indications for use, technological characteristics (materials), and general design. The FDA's letter (K083780) confirms this substantial equivalence determination.
Therefore, I cannot extract the requested information regarding acceptance criteria, device performance, study details (sample size, data provenance, expert qualifications, adjudication, MRMC, standalone performance), ground truth details, or training set information from this document.
The document primarily focuses on establishing substantial equivalence to existing devices rather than presenting a performance study with specific acceptance criteria.
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(49 days)
Ossicular Replacement Prostheses (CFR 21 § 874.3450)
Total Ossicular Replacement Prostheses (CFR 21 § 874.3495
An ossicular replacement prosthesis is a device intended to the functional reconstruction of segments of the ossicular chain and facilitates the conduction of sound wave from the tympanic membrane to the inner ear.
Ossicular replacement prostheses are indicated for the function of the ossicular chain when a conductive hearing loss is present. Indications for use include: Chronic middle ear disease, Otosclerosis, Congenital fixation of the stapes, Secondary surgical intervention to correct for a significant and persistent conductive hearing loss from prior otologic surgery, and surgically correctible injury to the middle ear from trauma.
The family of Grace Medical Adjustable and Fixed Length Partial & Total Ossicular Replacement Prostheses consists of: Grace Medical ALTO (Adjustable Length Total Ossicular) Prostheses Grace Medical ALPO (Adjustable Length Partial Ossicular) Prostheses Grace Medical FLTO (Fixed Length Total Ossicular) Prostheses Grace Medical FLPO (Fixed Length Partial Ossicular) Prostheses Silverstein ALTO (Adjustable Length Partial Ossicular) Prostheses with Footplate Tack Grace Medical Frisbee Myringopexy (Fixed Length Partial Ossicular) Prostheses. The Grace Medical Adjustable Length and Fixed Length Partial & Total Ossicular Replacement Prostheses are manufactured from the same or similar materials as the predicate devices. The Grace Medical Adjustable-Length PORP's and TORP's contain a medical grade silicone sleeve fixed to the titanium shaft which allows for adjustment to length by the user. Various designs of Grace Medical Adjustable Length Partial & Total Ossicular Replacement Prostheses are available to meet physician preference.
This is a 510(k) premarket notification for a medical device (Grace Medical Adjustable Length and Fixed Length Partial & Total Ossicular Replacement Prostheses), not a study evaluating software performance or an AI/ML device. Therefore, much of the requested information (acceptance criteria for device performance, sample sizes for test/training sets, expert ground truth, adjudication methods, MRMC studies, standalone algorithm performance, and effect sizes) is not applicable or cannot be extracted from this document.
The document focuses on establishing substantial equivalence to predicate devices based on intended use, materials, and design features, rather than presenting a performance study against specific acceptance criteria for a new, unique device function.
Here's a breakdown of the applicable information:
1. A table of acceptance criteria and the reported device performance
This document does not specify quantitative "acceptance criteria" for performance that would typically be found in a study for a new device's efficacy (e.g., a certain percentage improvement in hearing). Instead, the "acceptance" for this 510(k) is regulatory approval based on demonstrating substantial equivalence to legally marketed predicate devices.
The "reported device performance" is essentially that it has the "same primary intended use" and that "Differences between the Grace Medical Modified Partial Ossicular Replacement Prostheses and the predicate devices should not raise new issues regarding safety or effectiveness." This statement serves as the qualitative assessment of its performance relative to existing devices.
The core "acceptance criteria" for a 510(k) submission are met if the device:
- Has the same intended use as a predicate device.
- Has the same technological characteristics as the predicate device; OR
- Has different technological characteristics from a predicate device AND the information submitted to FDA does not raise new questions of safety and effectiveness AND the device is as safe and effective as the predicate device.
The document implicitly "reports" that these criteria have been met through the comparative tables and the FDA's final letter of substantial equivalence.
2. Sample sized used for the test set and the data provenance (e.g. country of origin of the data, retrospective or prospective)
Not applicable. This is a 510(k) submission based on substantial equivalence to existing devices, not a clinical performance study using a test set of 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)
Not applicable. No ground truth for a test set was established as part of this submission for direct device performance evaluation.
4. Adjudication method (e.g. 2+1, 3+1, none) for the test set
Not applicable. No test set adjudication.
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
Not applicable. This device is an implantable prosthesis, not an AI-assisted diagnostic tool or an imaging device.
6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done
Not applicable. This is a medical implant, not an algorithm.
7. The type of ground truth used (expert consensus, pathology, outcomes data, etc)
Not applicable. The "ground truth" for this submission is the established safety and effectiveness of the predicate devices based on their prior regulatory clearance and intended use.
8. The sample size for the training set
Not applicable. There is no "training set" in the context of an AI/ML algorithm for this type of device submission.
9. How the ground truth for the training set was established
Not applicable. No training set for an algorithm.
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(47 days)
Titanium Middle Ear Prostheses
Sublice Name: FISCH SED CER 2405 - 874 3450 I rade/Device Name: 115677 874.3495
; 874.3450 Regulation Number: 21 CFR 874.3495; 874.5450
Regulation Name: Total ossicular replacement
The FISCH Titanium Middle Ear Prostheses are intended for ossicle replacement to restore middle ear function when the sound transmission chain is broken. The various prosthetic models are implanted for partial or complete reconstruction, to replace missing or malformed ossicles or in secondary procedures after tumor or trauma operations.
The FISCH Titanium Middle Ear Prostheses are made of anodized titanium, which is commonly used in medical devices for a wide range of application and has a long history of biocompatibility for human use.
The provided document is a 510(k) Summary for medical devices (FISCH Titanium Middle Ear Prostheses). This type of document is submitted to the FDA to demonstrate that a new device is substantially equivalent to a legally marketed predicate device. It typically does not contain information about the device's performance in terms of specific measurable criteria, nor does it typically include clinical study data in the way one might expect for a novel device requiring extensive clinical trials. Instead, the focus is on comparing the new device's intended use, technological characteristics, and safety/effectiveness profile to an already approved device.
Therefore, the requested information regarding acceptance criteria, study details, sample sizes, ground truth establishment, and MRMC studies is not available in the provided text.
Based on the nature of this submission, the "study" that proves the device meets acceptance criteria is primarily a comparison of the new device to a predicate device and a demonstration of substantial equivalence, rather than a standalone performance study with measurable outcomes against defined acceptance criteria.
Here's a breakdown of what can be extracted and what cannot:
1. A table of acceptance criteria and the reported device performance:
- Acceptance Criteria: Not explicitly stated as pass/fail metrics. The "acceptance criteria" here is implicitly that the Karl Storz FISCH Titanium Middle Ear Prostheses are substantially equivalent to the predicate Stryker/Leibinger FISCH Titanium Middle Ear Prostheses in terms of intended use, dimensions, material, single use, sterility, and design.
- Reported Device Performance: No specific performance metrics (e.g., auditory gain, complication rates) are reported. The "performance" is considered equivalent to the predicate device due to the similarities highlighted in the tables.
Table of Substantial Equivalence (summarized from the document):
Feature | Predicate Device (Stryker/Leibinger) | Karl Storz Device | Comparison |
---|---|---|---|
Intended Use | Ossicle replacement to restore middle ear function. | Same | Equivalent |
Dimensions | Specific lengths and diameters for Stapes Piston, Incus, Neomalleus, Total Prosthesis | (Slightly different model numbers, but same dimensions) | Equivalent |
Material | Titanium | Anodized Titanium (for Incus, Neomalleus, Total) / Titanium (for Stapes) | Equivalent (Anodized Titanium is a form of Titanium) |
Single Use | Yes | Same | Equivalent |
Sterile | Yes | Same | Equivalent |
Design | One-piece, flat loop (Stapes); allows shaping, 4 holes (Incus); smooth/grooved (Neomalleus); plate with shaft/shoe (Total) | Same | Equivalent |
2. Sample size used for the test set and the data provenance:
- Not applicable as this is not a clinical performance study with a test set. It's a regulatory submission demonstrating equivalence.
3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts:
- Not applicable. Ground truth as typically established by experts for performance evaluation is not part of this 510(k) submission.
4. Adjudication method for the test set:
- Not applicable.
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:
- Not applicable. This device is a passive implantable medical device, not an AI-powered diagnostic tool.
6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done:
- Not applicable. This device is a passive implantable medical device, not an algorithm.
7. The type of ground truth used:
- The "ground truth" in this context is the safety and effectiveness profile of the predicate device, which has already been legally marketed and deemed safe and effective by the FDA. The new device is compared against this established benchmark.
8. The sample size for the training set:
- Not applicable. There is no "training set" in the context of this 510(k) submission for a physical device.
9. How the ground truth for the training set was established:
- Not applicable.
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(16 days)
Common
- Classification Replacement, Ossicular Prosthesis, Total Product Code 77 ETA Regulation # CFR 874.3495
Attn: Dagmar Mäser
Re: K042503
Trade/Device Name: KURZ CLIP® Piston MVP Regulation Number: 21 CFR 874.3495
Bridging the stapes and incus in cases of otosclerosis and defects of the ossicular chain between manubrium mallei and vestibulum (malleovestibulopexy)
The all-titanium prosthesis consists of an undulated, selfretaining, two-limbed clip that is laser-welded to a rectangular shaft which is connected with a conventional KURZ piston shaft by means of a unique ball joint.
The provided document is a 510(k) summary for a medical device and does not contain information about acceptance criteria or a study proving that the device meets specific performance metrics. It focuses on demonstrating substantial equivalence to predicate devices based on design and safety characteristics, rather than reporting on specific performance outcomes from a clinical study with predefined acceptance criteria.
Therefore, most of the requested information regarding acceptance criteria, study details, sample sizes, expert involvement, and comparative effectiveness simply does not exist within this 510(k) submission.
Here's a breakdown of what can be extracted and what is missing:
1. Table of Acceptance Criteria and Reported Device Performance
Not applicable/Not provided in the 510(k) summary.
The 510(k) summary focuses on demonstrating substantial equivalence based on design similarities and a qualitative assessment of safety and effectiveness, rather than quantitative performance against pre-defined acceptance criteria from a specific study.
2. Sample Size Used for the Test Set and Data Provenance
Not provided in the 510(k) summary.
No specific "test set" and its sample size are mentioned, as this is a premarket notification based on design changes and comparison to predicate devices, not a clinical trial reporting on performance data.
3. Number of Experts Used to Establish the Ground Truth for the Test Set and Qualifications
Not applicable/Not provided in the 510(k) summary.
No "ground truth" establishment in a clinical context is described, as there is no reported performance study with a test set.
4. Adjudication Method for the Test Set
Not applicable/Not provided in the 510(k) summary.
No adjudication method is described, as there is no reported performance study with a test set.
5. If a Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study Was Done
No, a MRMC comparative effectiveness study was not done or reported in this 510(k) summary.
The submission focuses on design modifications and claims that the new device, by improving handling and reducing risks, is "expected to result in equal if not better audiological postoperative hearing gain." This is a qualitative statement of expectation, not a result from a comparative effectiveness study.
6. If a Standalone (Algorithm Only Without Human-in-the-Loop Performance) Was Done
Not applicable/Not provided in the 510(k) summary.
This device is a physical medical implant, not an algorithm or AI system. Therefore, the concept of "standalone performance" in that context is not relevant.
7. The Type of Ground Truth Used
Not applicable/Not provided in the 510(k) summary.
No ground truth is described in the context of a performance study. The "safety and effectiveness" claims are based on design comparisons to predicate devices and theoretical advantages of the new design features. The statement "Clinical test results confirm the safety and effectiveness of this design" is made, but no details of these "clinical test results" are provided, nor is the nature of the "ground truth" used.
8. The Sample Size for the Training Set
Not applicable/Not provided in the 510(k) summary.
No training set is mentioned, as this is not an AI/algorithm-based device and no such study is described.
9. How the Ground Truth for the Training Set Was Established
Not applicable/Not provided in the 510(k) summary.
No training set is mentioned, and therefore, no ground truth establishment for it.
Summary of what is present in the document relevant to safety and effectiveness:
- Rationale for Design Changes: The document clearly outlines the reasons for modifying the device, primarily focusing on facilitating intraoperative handling, reducing risks of patient trauma, and improving post-operative sound transmission.
- Safety Features: Mention of reduced tissue necrosis by improving vascular circulation, standardization and shortening of surgical procedures, elimination of instruments and crimping, and reduction of potential risks.
- Theoretical Performance Improvement: Expectation of "equal if not better audiological postoperative hearing gain" due to gentle clip-on attachment and alignment with sound transmission axis.
- MRI Compatibility: Testing in a 3.0 Tesla NMR tomograph revealed no implant movement and no adverse tissue effects attributable to MRI-generated heating.
- Comparison to Predicate Devices: A detailed table compares the new device (CliP® Piston MVP) to its predicate devices (Titanium K-Piston and CliP® àWengen) in terms of design, intended use, materials, and specific features, highlighting the modifications and their perceived benefits.
- Conclusion on Safety and Effectiveness: The document concludes that the results of design validation raise no new issues of safety and effectiveness, and that "clinical test results confirm the safety and effectiveness of this design," though these results are not detailed.
Essentially, this 510(k) submission argues for substantial equivalence primarily through comparison of design features and theoretical benefits based on those design changes, rather than providing detailed data from a quantitative performance study with explicit acceptance criteria.
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(12 days)
3029
Re: K030492 Trade/Device Name: Titanium Ossicular Replacement System Regulation Number: 21 CFR 874.3495
Reconstruction of the sound conduction chain between the base of stapes and the tympanic membrane level by replacing the missing middle ear bones with a total implant in the sense of a tympanoplasty of type IIIC given an existing intact base of stapes with normal mobility and without luxation.
Titanium Ossicular Replacement System
The provided text is a 510(k) clearance letter from the FDA for the "Titanium Ossicular Replacement System." It indicates that the device is substantially equivalent to legally marketed predicate devices. However, this document does not contain any information about acceptance criteria, device performance, or any studies conducted.
Therefore, I cannot provide the requested information. The document focuses on regulatory clearance based on substantial equivalence, not on detailed performance evaluation against specific criteria or study results.
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(19 days)
|
| Classification Names: | Total ossicular replacement prosthesis: 21 CFR
874.3495
Prosthesis Dated: October 21, 1999 Received: October 22, 1999 Classification Regulation: 77 ETA , 21 CFR 874.3495
The Lelbinger titanium ossicular chain reconstruction prostheses and accessories are used for ossicle replacement to restore middle ear function when the sound transmission chain is broken. The various prosthetic models are implanted for partial or complete reconstruction, to replace missing or malformed ossicles or in secondary procedures after tumor or trauma operations.
Titanium ossicular chain reconstruction prostheses are available for the following indications:
Chronic otitis media
Immobility of the stapes (otosclerosis in particular)
Injury of the ossicle (trauma)
Abnormal and defective formation of the middle ear
Secondary procedure to improve hearing
Revision operation on a malpositioned prosthesis
The system consists of various implants, instrumentation, and storage containers.
Product Designation | Product Intended Use |
---|---|
Stapes prosthesis | Flat band and piston prosthesis for attachment to the malleus or incus, inserted through the footplate of the stapes. |
Total prosthesis (TORP) | Plate prosthesis with shaft and shoe as ossicle replacement between the tympanic membrane and the footplate of the stapes. |
Neomalleus total prosthesis | Malleus prosthesis as ossicle replacement In combination with stapes prosthesis. - |
Incus prosthesis | Incus replacement to connect malleus and head of stapes. |
Partial prosthesis (PORP) | Malleus and incus replacement to connect tympanic membrane and head of stapes. |
This is a 510(k) summary for a medical device cleared in 1999, which predates the widespread use of AI/ML in medical devices and the associated regulatory expectations for studies proving AI performance. Therefore, the document does not contain information related to AI acceptance criteria or studies.
The document describes the Zürich Titanium Ossicular Replacement System, a device for ossicle replacement to restore middle ear function. The basis for its clearance is substantial equivalence to predicate devices already on the market, not a detailed performance study with acceptance criteria as would be required for a novel AI device today.
Therefore, I cannot provide the requested information regarding AI acceptance criteria and studies from the given input.
However, I can extract information relevant to the device's regulatory submission based on the provided text:
1. Table of Acceptance Criteria and Reported Device Performance:
- Acceptance Criteria: The device's acceptance was based on its substantial equivalence to predicate devices, meaning it met the requirements for intended use, materials, design, and operational principles established by already marketed devices. There are no specific quantifiable performance metrics described as acceptance criteria in this document for the device itself, beyond being "substantially equivalent."
- Reported Device Performance: The document states the device "is intended to be used for ossicle replacement to restore middle ear function when the sound transmission chain is broken." There are no reported performance metrics (e.g., success rates, hearing improvement statistics) within this 510(k) summary.
2. Sample size used for the test set and the data provenance: Not applicable. Device was cleared based on substantial equivalence, not a performance study with a test set.
3. Number of experts used to establish the ground truth for the test set and the qualifications of those experts: Not applicable. Device was cleared based on substantial equivalence.
4. Adjudication method (e.g. 2+1, 3+1, none) for the test set: Not applicable. Device was cleared based on substantial equivalence.
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: Not applicable. This device is an implantable medical device, not an AI diagnostic tool.
6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done: Not applicable. This device is an implantable medical device, not an AI algorithm.
7. The type of ground truth used (expert consensus, pathology, outcomes data, etc): Not applicable in the context of an AI study. The "ground truth" for this device's clearance was that it was substantially equivalent in design and intended use to existing, legally marketed devices.
8. The sample size for the training set: Not applicable. This device is an implantable medical device, not an AI algorithm.
9. How the ground truth for the training set was established: Not applicable. This device is an implantable medical device, not an AI algorithm.
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(35 days)
|
| Classification Name: | Total Ossicular Replacement Prosthesis (§ 874.3495
Otosclerosis. Congenital fixation of the stapes. When previous remedial surgery has been unsuccessful for the treatment of hearing loss due to otosclerosis, and a significant conductive loss remains with good cochlear reserve. Chronic middle ear disease. Trauma.
The Bojrab Micro-TORP Prosthesis is substantially equivalent to the Black Oval-Top TORP marketed by Smith & Nephew, Inc., ENT Division, and the Schwaber Total implant marketed by Xomed. These devices have the same indications for use, total reconstruction of the ossicular chain that has lost its function due to disease, trauma, or congenital defect. The head of the Bojrab Micro-TORP Prosthesis is made from Hydroxylapatite, a widely accepted material for middle ear reconstruction, as are the heads of the two predicate devices. The Bojrab Micro-TORP Prosthesis and the predicate devices all have trimmable shafts. The Bojrab and Black implant shafts are made from HAPEX and the Schwaber implant shaft is manufactured from FLEX H/A.
The provided text is a 510(k) summary for the Bojrab Micro-TORP Prosthesis, a medical device. It focuses on demonstrating substantial equivalence to existing devices rather than presenting a study with acceptance criteria and performance data in the typical sense of an AI/software device.
Therefore, many of the requested categories for AI-related studies (like sample size, ground truth, expert adjudication, MRMC studies, training set details) are not applicable to this type of medical device submission.
Here's a breakdown based on the available information:
1. Table of Acceptance Criteria and Reported Device Performance
This document describes a medical device (a prosthesis) and its substantial equivalence to predicate devices, not an AI or software product. Therefore, there are no specific acceptance criteria or performance metrics in the form of sensitivity, specificity, or other statistical measures typically associated with AI device studies.
The "performance" for this type of device is implicitly that it functions similarly to the predicate devices and is safe and effective for its stated indications for use.
Acceptance Criteria (Implied) | Reported Device Performance |
---|---|
Substantial equivalence to predicate devices for safety and effectiveness. | The device is deemed substantially equivalent to the Black Oval-Top TORP and the Schwaber Total implant. |
Same indications for use as predicate devices. | Same indications for use: total reconstruction of the ossicular chain due to disease, trauma, or congenital defect. |
Materials used are accepted for middle ear reconstruction. | Head made from Hydroxylapatite (widely accepted). Shaft made from HAPEX (similar to predicate devices). |
Differences should not affect safety or effectiveness. | Differences between the Bojrab Micro-TORP and predicate devices "should not affect the safety or effectiveness." |
2. Sample Size Used for the Test Set and Data Provenance
Not applicable. This is a medical device submission, not a study involving a test set of data for an AI algorithm. The substantial equivalence is based on design, materials, and intended use comparison to existing predicate devices.
3. Number of Experts Used to Establish the Ground Truth for the Test Set and Qualifications of Those Experts
Not applicable. Ground truth as typically understood for AI studies (e.g., expert-annotated data) is not relevant here. The "ground truth" for this submission is whether the device design and materials are safe and effective for its intended use, as compared to established predicate devices.
4. Adjudication Method for the Test Set
Not applicable. There is no test set or adjudication process described in this context.
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
Not applicable. This is not an AI device, and therefore, an MRMC study comparing human readers with and without AI assistance is irrelevant.
6. If a Standalone (i.e. algorithm only without human-in-the-loop performance) was done
Not applicable. This is a physical medical device (a prosthesis), not an algorithm or software.
7. The Type of Ground Truth Used
The "ground truth" in this context is the established safety and effectiveness of the predicate devices (Black Oval-Top TORP and Schwaber Total implant) and the generally accepted properties of the materials used (Hydroxylapatite and HAPEX) for ossicular replacement prostheses. The FDA's decision relies on this comparison.
8. The Sample Size for the Training Set
Not applicable. There is no training set for an AI algorithm discussed in this document.
9. How the Ground Truth for the Training Set was Established
Not applicable. This document does not describe an AI training set or its ground truth establishment.
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(72 days)
Mills Columella Prosthesis Dated: March 19, 1998 Received: March 25, 1998 Regulatory class: II 21 CFR 874.3495
The Mills Columella is intended to improve or restore hearing by replacing an absent or defective incus and stapes.
The treatment of an absent or defective stapes.
The Mills Columella Prosthesis is manufactured from p.t.f.e., a material which has been used for the reconstruction of the middle ear for many years. It can be combined with an ossicular or cortical bone graft for the treatment of ossicular defects, including loss of stapes arch.
The provided text is a 510(k) premarket notification for the Mills Columella Prosthesis. It does not contain information about a study proving the device meets acceptance criteria or detailed performance data as typically found in a clinical trial report.
Here's an analysis based on the available information:
1. Table of Acceptance Criteria and Reported Device Performance
This information is not present in the provided document. A 510(k) submission typically focuses on demonstrating substantial equivalence to a predicate device rather than presenting detailed performance against specific acceptance criteria from a dedicated study.
2. Sample Size Used for the Test Set and Data Provenance
This information is not present in the provided document. No specific test set or associated data provenance is discussed.
3. Number of Experts Used to Establish Ground Truth and Qualifications of Experts
This information is not present in the provided document. There is no mention of experts establishing a ground truth for a test set.
4. Adjudication Method for the Test Set
This information is not present in the provided document. No test set or adjudication method is described.
5. Multi-Reader Multi-Case (MRMC) Comparative Effectiveness Study
This information is not present in the provided document. There is no mention of an MRMC study or any analysis of human reader improvement with or without AI assistance. The device is a physical prosthesis, not an AI-assisted diagnostic tool.
6. Standalone (Algorithm Only) Performance Study
This information is not present in the provided document. The device is a physical prosthesis for surgical implantation, not an algorithm.
7. Type of Ground Truth Used
This information is not present in the provided document. The submission focuses on substantial equivalence based on material and intended use compared to predicate devices.
8. Sample Size for the Training Set
This information is not present in the provided document. As this is not an AI/algorithm-based device, there would not be a "training set" in that context.
9. How the Ground Truth for the Training Set Was Established
This information is not present in the provided document.
Summary of Device Information from the Document:
- Device Name: Mills Columella Prosthesis
- Common Name: Prosthesis, Ear, Internal
- Classification Name: Ossicular Replacement Prosthesis
- Intended Use: To improve or restore hearing by replacing an absent or defective incus and stapes, or for the treatment of ossicular defects including loss of stapes arch, often combined with an ossicular or cortical bone graft.
- Material: p.t.f.e. (a non-porous material)
- Predicate Devices: Shea Plasti-Pore, TORP and Austin Off Centered, TORP (both manufactured from Plasti-Pore).
- Comparison with Predicate Devices: The subject device is manufactured from p.t.f.e., which is described as "a non-porous but otherwise very similar material" to Plasti-Pore. The subject device is "on average, smaller than the predicate devices but performs exactly the same function." The p.t.f.e. material has been "used for the reconstruction of the middle ear for many years."
- Substantial Equivalence: The FDA determined the device is substantially equivalent to legally marketed predicate devices, allowing it to proceed to market. The substantial equivalence is based on the indications for use.
In essence, the document serves as a regulatory filing demonstrating equivalence to existing devices, not a detailed performance study with acceptance criteria.
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