Excision Instruments TRIZ Cases
- Integrated Aortic Punch for Single-Step Incision and Hole Formation
An integrated aortic punch combines a cutting blade with a circular tool to create precise holes in blood vessel walls during surgery.
- Surgical Adapter Rotary to Linear Drive Conversion
A surgical adapter couples rotary handle assemblies to linear loading units via a drive assembly with opposing thread sets.
- Tissue Resection Device with Straight Edge Opening for Tessellated Cuts
Straight edge openings on the distal cap allow adjacent tissue sections to be removed continuously without leaving residual gaps between circular cuts.
- Expandable Anastomosis Stapling Head with Herringbone Pattern
Herringbone staple arrays enable radial expansion of anastomoses, reducing stricture risk and improving peristalsis.
- Surgical Instrument Drive Housing Lockout Mechanism
A surgical instrument drive housing integrates jaw manipulation and knife deployment within a single shaft assembly.
- Parallel Jaw Motion Electrosurgical Instrument
Parallel jaw closure minimizes tissue milk out and ensures uniform energy distribution for complete sealing and cutting.
- Rotating Loop Vascular Drilling Device for CTO Recanalization
A vascular drilling device uses rotating loops to mechanically fracture chronic total occlusions.
- Nested Tissue Bag System for Minimizing Uterine Tissue Seeding
Segmenting the procedure into two contained bags prevents cancerous tissue seeding during morcellation while enabling safe instrument access.
- OCT Imaging for External Elastic Lamina Identification
Real-time optical coherence tomography imaging identifies the external elastic lamina to guide cutting depth and prevent vessel wall trauma.
- Segmented Arcuate Cutter for Tissue Removal in Tortuous Vessels
Segmented arcuate cutting members with recessed clearance portions remove plaque while preventing interference between adjacent blades in tortuous vessels.
- Tissue Excision Snare Wire Segmentation for Complete Constriction
Independent wire segments enable complete tissue constriction while reducing pressure on the sheath to prevent damage.
- Asymmetric Medical Device Shaft Offset for Thrombus Capture Stability
Offsetting the shaft axis inside the hollow body suppresses filter rotation, maintaining thrombus capture efficiency and reducing pulmonary embolism risk.
- Retractable Blade Catheter for Active Lesion Scoring
Lateral blade deployment overcomes elastic recoil in hard calcifications, enabling precise scoring independent of vessel diameter.
- Disc Nucleus Removal Device Radial Cutting Mechanism
Radially extending a cutting element from a hollow member removes disc nucleus tissue while minimizing annular defects.
- Flexible Recanalization Device for Thrombus Extraction
A flexible recanalization device with a coiled distal end tube secures and removes thrombi from vasculature.
- Manual Thrombectomy Device Aspiration and Fragmentation
A manual thrombectomy device drives simultaneous aspiration and fragmentation to remove clots.