Search Results

The SUPERA VERITAS® Interwoven Self-Expanding Nitinol Stent Transhepatic Biliary System is indicated for palliative treatment of biliary strictures produced by malignant neoplasms.

The SUPERA VERITAS® Interwoven Self-Expanding Nitinol Stent Transhepatic Biliary System is a 0.014" or 0.018" guidewire compatible, multi-lumen sheath based delivery system and a SUPERA® Biliary Stent. The stent delivery catheter includes a radiopaque Stent Length Marker and Distal Sheath Marker embedded in the Outer Sheath to aid in proper stent positioning; a Thumb Slide connected internally for advancing the Stent out of the Outer Sheath while the Outer Sheath moves proximally in a de-coupled fashion; a Sheath Flush Port for flushing the central lumen of the device; a Deployment Lock that when actuated enables the final deployment stroke of the stent; a Guidewire Lumen with a radiopaque Catheter Tip located on the distal end of the Catheter Shaft; a Guidewire Flush Port used for flushing the Guidewire Lumen, a Stent Driver (ratchet) which moves the stent distally relative to the Outer Sheath; and the System Lock which eliminates the possibility of premature deployment. The working length of the 6 Fr delivery catheter is 80cm and 120cm. The working length of the 7Fr delivery catheter is 120 cm. The SUPERA® Stent is housed within the SUPERA VERITAS® stent delivery catheter and is a closed end interwoven self-expanding Nitinol stent. The SUPERA® stent is composed of 6 interwoven, closed loop Nitinol wires. The wire loops are closed via a proprietary welding process which utilizes small Nitinol tubes that act as a coupler to provide the mechanical means of joining the wire ends.

This document describes the marketing authorization for the SUPERA VERITAS® Interwoven Self-Expanding Nitinol Stent Transhepatic Biliary System (K122546). This is a 510(k) submission, meaning the device demonstrated "substantial equivalence" to a legally marketed predicate device, rather than undergoing a de novo pathway requiring extensive clinical studies to establish safety and effectiveness from scratch. Therefore, the concept of "acceptance criteria" and a "study that proves the device meets the acceptance criteria" in the traditional sense of a de novo device for performance metrics derived from clinical trials often doesn't directly apply.

Instead, for a 510(k), acceptance is based on demonstrating substantial equivalence through various means, primarily bench performance testing in this specific case, and comparison of design, materials, and intended use. The "acceptance criteria" are implicitly met by demonstrating that the modified device performs similarly or equivalently to the predicate devices across relevant engineering and performance tests.

Here's an analysis of the provided information, addressing your questions where applicable within the context of a 510(k) submission for a stent:

1. A table of acceptance criteria and the reported device performance

For this 510(k), the "acceptance criteria" are not explicitly defined as numerical thresholds in this summary. Instead, they are implied by demonstrating "substantial equivalence" to the predicate devices through bench performance testing. The reported performance is that this testing "demonstrated that the SUPERA VERITAS® Interwoven Self-Expanding Nitinol Stent Transhepatic Biliary System is substantially equivalent to its predicate devices."

The specific tests performed were:

2. Sample size used for the test set and the data provenance (e.g. country of origin of the data, retrospective or prospective)

• Sample Size for Test Set: The document does not specify the sample sizes (e.g., number of stents or delivery systems) for the Deployment, Trackability Force Characterization, Catheter Tip Integrity, and Sterilization Validation tests. These would typically be detailed in the full test reports, which are not included in this summary.
• Data Provenance: The data is from "bench performance testing," which implies laboratory testing. No country of origin is specified for the data itself, but the submitter (IDEV Technologies, Inc.) is based in Webster, Texas, USA. This testing is inherently prospective with respect to the 510(k) submission, as it was conducted to support the submission for the modified device.

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. This device received 510(k) clearance based on bench testing demonstrating substantial equivalence to predicate devices, not on a clinical trial requiring expert ground truth assessment of patient data.

4. Adjudication method (e.g. 2+1, 3+1, none) for the test set

Not applicable, as this was not a clinical study involving human assessment of outcomes or images. The "adjudication" for the bench tests would have been the objective measurements obtained during the tests themselves against predefined engineering specifications.

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 a medical device (stent and delivery system), not an AI/imaging diagnostic device, and thus MRMC studies are not relevant to its clearance.

6. If a standalone (i.e. algorithm only without human-in-the-loop performance) was done

Not applicable. This is a physical medical device, not an algorithm or software-only device.

7. The type of ground truth used (expert consensus, pathology, outcomes data, etc.)

The "ground truth" for this 510(k) submission is the performance of the predicate devices. The modified device's performance in bench tests (Deployment, Trackability, Catheter Tip Integrity, Sterilization) was compared against the expected performance and specifications derived from the predicate devices to establish substantial equivalence.

8. The sample size for the training set

Not applicable. This device does not use a "training set" in the context of machine learning or AI.

9. How the ground truth for the training set was established

Not applicable, as there is no training set for this type of device submission.

Ask a specific question about this device