Excision Instruments TRIZ Cases
- Surgical Disc Removal Tool Auger Mechanism
Threaded shaft mechanically conveys severed tissue to a collection chamber, replacing inefficient airflow suction systems.
- Hollow Tubular Cutting Implement for Quadriceps Tendon Grafts
Nested hollow tubular elements trim stiff quadriceps tendon grafts, reducing postoperative scarring and pain.
- Ratcheting Mechanism for Hand-Held Medical Drive Apparatus
Ratcheting mechanism allows actuator return during high resistance, maintaining continuous forward rotation in hand-held medical devices.
- Adjustable Skin Graft Tool With Oscillating Blade
Adjustable blade covers and thickness guides resolve the trade-off between device complexity and adaptability for varying wound sizes.
- Broach Holder Tool Coplanar Strike Plate Reduces Rasp Moments
Coplanar strike and withdrawal plates eliminate non-axial moments that cause femur fractures, enabling safe angled broaching for anterior hip approaches.
- Self-aligning Drive Coupler for Surgical Handpiece Assembly
Radial lobes on the drive coupler rotate axially to align with the drive hub, resolving assembly misalignment and enabling cleanable geometry.
- Tissue-removing Catheter Locking Control Mechanism
A tissue-removing catheter employs a locking control circuit to inhibit cutter movement upon detecting non-tissue obstructions.
- Rotating Inner Blade Surgical Instrument for Brain Tumor Resection
A coaxial surgical instrument with a rotating inner blade enables precise tissue resection through controlled irrigation and aspiration pathways.