Development of Deployable Bending Wrist for Minimally Invasive Laparoscopic Endoscope
Why this work is in the frame
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Bibliographic record
Abstract
During the last two decades, minimally invasive surgery (MIS) has become popular because it offers advantages such as less pain, faster recovery, improved cosmesis, and reduced complications. Single-port laparoscopic surgery is a form of MIS where surgeons operate exclusively through a single entry. However, the view from the rigid endoscope is often obscured by the instruments which pass through the same single entry. To remove the need for a secondary viewing port and the blind spots during operation, we propose a deployable wrist mechanism for minimally invasive laparoscopic surgery. It utilizes an S-shape nitinol tube with a curvature of 15 mm and 1.83 mm in diameter. When retracted, the s-shaped wrist is straightened into the main shaft of the laparoscopic tool. As the wrist translates outward, the S-shaped nitinol wrist emerges from an opening on the tool shaft and bends to point at the tooltip. The wrist has two degrees of freedom: translational displacement for controlling the bending and rotational movement of the wrist. The bending mechanism was analyzed by finite element method simulation and validated by experiments. For future work, we will try to widen the scope of its applications including laser ablation tools, triangularization, and other microsurgical procedures.
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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 it