Ex-Vivo Testing of Smart Ureteral Stent Toward Hydronephrosis Monitoring via Standard Stenting
Bibliographic record
Abstract
This work presents a telemetric “smart” ureteral stent that offers, for the first time, compatibility with the standard stenting procedure to enable real-time sensing of ureteral obstruction and resultant kidney swelling at an early stage. This advanced ureteral stent integrates micro pressure sensors and a radiofrequency antenna to configure a resonant circuit for noninvasive kidney pressure monitoring via the indwelling stent. The stent prototype, electrically and biologically passivated by Parylene C, is tested in a harvested swine kidney-ureter model filled with artificial urine, demonstrating wireless pressure tracking with a response of 1.3 kHz/mmHg in cycled pressure variations up to 37 mmHg representing a reported average pressure rise due to chronic occlusion. The successful measurement enabled via prototype's placement into the model using today's stenting method and tools indicates potential clinical compatibility of the technology.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".