Excision Instruments TRIZ Cases

A rotating catheter micro probe uses sharp perimeter openings, suction, and optional cooling to remove soft and hard arterial plaque.

Counter-rotating nested hoops increase intima shearing contact points, speeding ablation while limiting torsional vessel damage.

A balloon-expandable abrasive burr stays compact for tortuous vessel access, then expands radially to remove occlusive tissue and restore patency.

Cutting elements and a lesion-oriented ultrasound emitter improve lithotripsy efficacy on eccentric calcific vessel lesions.

A braided funnel sleeve with partial deployment, suction, and cinching closure captures large clots while limiting fragmentation and particle release.

An expandable dual-scaffold retriever captures clot in one pass while limiting radial-force injury and fragmentation in tortuous vessels.

A linearly displaceable tube clamp raises thrombectomy outflow to match inflow, helping prevent hemolysis and distal embolization.

Dual radial contact portions let a deformable breaker match thrombus size, improving crushing efficiency while reducing load on lumen tissue.

A deployable coring blade and mesh assembly separates wall-adherent clot, then captures long clot segments while reducing vessel trauma.

A three-shaft coring mesh and deployable funnel improve capture of long adherent clots while minimizing vessel trauma during thrombectomy.

A rotating cap and three-shaft extractor enable gradual funnel expansion and secure capture of large adherent clots during thrombectomy.

A closure wire pulls the braid tip inward to encapsulate large clots during retrieval and minimize fragmentation into bloodstream particles.

An expanding shape-memory capture assembly encloses large clots for rapid removal in vessels with limited distal space, reducing embolization risk.

Dual blood pressure sensors calculate fractional flow reserve to guide stenosis cutting without repeated X-ray imaging or overcutting.

Different distal blade edge shapes help atherectomy cutters handle calcium, plaque, and collagen while reducing clogging and tissue damage.

Open distal ends and combined longitudinal-circumferential cutting edges let this shaver remove tissue faster in narrow joint gaps.

A dual-catheter assembly deploys a flexible cutting tip through a side opening to slit the dissection membrane while reducing aortic wall injury.

An inner anchoring body and outer protective cage capture soft and fibrin-rich clots while reducing vessel trauma and fragmentation.

An integrated self-expanding filter catheter captures emboli and anchors positioning, reducing stroke risk and procedure time.

Electromagnets move abrasive beads along the catheter to remove plaque with less manual intervention, shorter procedures, and lower vessel trauma.

An elastic-mounted shaft support follows drive shaft axis swing to cut friction and rotational torque loss in atherectomy use.

Starting aspiration before cutter rotation builds negative pressure early, improving lesion debris capture and lowering embolization risk.

Expandable engaging members with a spherical distal structure improve clot capture in curved vessels while reducing fragmentation and endothelial damage.