Excision Instruments TRIZ Cases

An oval-shaped surgical stapling tool assembly pivots to align with anatomical constraints.

An undulating clot retrieval device engages occlusive material via wave-like geometry, reducing compressive force and preventing displacement during removal.

Segmented struts with radial gaps cut calcified plaque in body lumens, preventing device entanglement and tissue damage.

A rotating ultrasonic blade extends within a hollow sheath to cut tissue precisely.

A retractable surgical device dissects hypertrophied ligamentum flavum, reducing muscle damage and spinal instability associated with open laminectomy.

Dual reciprocating looped blades replace spinning mechanisms to improve cutting efficiency while reducing injury risk to nearby organs.

Segmentation prevents shaft unwinding and fluid loss during reverse rotation, maintaining irrigation integrity at high speeds.

A segmented ultrasonic surgical instrument uses a rail guide to slide the distal end effector along the sleeve for precise tissue manipulation.

A powered shaving instrument with a cutting tip and window removes intervertebral disc material.

Fluid flow through vent holes creates negative pressure to capture material fragments, preventing embolization during atherectomy procedures.

A flexible guide tube rotary cutter removes intervertebral disc tissue via vacuum suction, preventing annulus trauma during nucleus extraction.

An elastically flexible electrosurgical cutting loop extends alongside an extraction bag to enclose resected tissue directly upon detachment.