Excision Instruments TRIZ Cases
- Self-Expanding Clot Treatment Device for Pulmonary Embolism
A self-expanding clot treatment device with a braided mesh structure creates a flow lumen to restore blood circulation in pulmonary embolism cases.
- Two-Chamber Snare for Polyp Stalk Fixation
Segmented chambers separate stalk spreading from head fixation, reducing bleeding risks in pedunculated polyps.
- Externally Supported Anastomosis Device for Fistula Creation
A catheter positions between blood vessels to inject a fixing agent that stabilizes and seals the connection site.
- Pre-loaded Spring Impact Device for Hard Plaque Penetration
A distal pre-loaded spring releases impact force to penetrate hard calcified plaque in blood vessels.
- Clot Extraction Catheter with Self-Expanding Rim
A clot extraction catheter uses a self-expanding rim and control wires to capture thrombus material within an expandable tubular mesh.
- Rotational Atherectomy Drive Shaft Filars
Segmented helical filars reduce frictional losses and guidewire stress while maintaining high-speed lesion removal efficiency.
- Flexible Three-Arm Snare for Stone Retrieval
Intersecting noose arches on a flexible three-arm snare improve trapping reliability while reducing manufacturing complexity.
- Spline-Shaped Cutting Windows for Rotary Shaver Suction Control
A rotary shaver arrangement uses spline-shaped cutting windows to expand the angular range where suction lumens remain sealed.