Guide Needles TRIZ Cases
- Guiding Catheter Protective Sheath Friction Reduction
A guiding catheter assembly uses a movable protective sheath to reduce friction during insertion.
- Catheter Sheath Introducer Retention Damper
Segmented elastic dampers in the sheath lumen prevent rotational slippage while reducing advancement force.
- Integrated Needle-Mounted Balloon for Bone Expansion
Integrating the cannula and balloon into one unit reduces procedural time and device complexity while maintaining reliable bone expansion.
- Catheter Needle Guard with Flow Regulator and Cam Release
A catheter hub integrates a compressible elastic sleeve for fluid regulation and a cam-based release element for safe needle retraction.
- Single-Handed IV Catheter System with Hooding Mechanism
A single-handed IV catheter system merges grip and stabilization functions to reduce procedure time while protecting the vein from needle damage.
- Catheter with Variable Rigidity for Branch Vessel Insertion
Segmenting the catheter shaft into variable rigidity zones prevents guide wire separation during insertion into small-diameter branch blood vessels.
- Spring-Driven Infusion Set Inserter with Retractable Needle
An automatic spring mechanism drives catheter insertion and needle retraction, eliminating manual force variability and accidental needle stick exposure.
- Needle Shielding Flag Structures for Vascular Access Safety
Segmented V-clip arms and transverse flags form an engageable barrier that prevents needle re-penetration while managing device complexity.