Haemostasis Valves TRIZ Cases

A tension-triggered connector uses dual self-closing valves and a detachable lock to prevent accidental IV line removal and contamination.

A threaded plunger-and-nut assembly aligns seals and cartridge parts to prevent fluid leakage and backflow in intravascular hemostasis valves.

An axial slot and alignment tab guide nut rotation to compress the seal member and prevent pressure-driven leakage without gluing.

Segmented conical gaskets seal around a sliding catheter to prevent blood backflow during positioning and reduce exposure risk.

Layered cross-plane, self-centering, and collapsible seals maintain hemostasis during coaxial and non-coaxial guide sheath insertion.

Spring-biased cams keep the passageway sealed by default, reducing bleeding and air ingress while allowing intuitive valve opening.

Retrograde carotid flow and a shunted access sheath enable rapid cerebral access while limiting embolic debris during neurovascular intervention.

Blood flow reversal in transcarotid access helps block embolic debris from reaching the brain during rapid neurovascular intervention.

Conical and frustoconical seal members block blood backflow while allowing catheter movement during placement.

Separate stone fragments from waste fluid during lithotripsy and retrieve them for analysis through a dedicated capture path.

A deformable valve member seals within a tapered housing to accommodate interventional devices of varying diameters.

A medical valve uses a movable member and fluid path to prevent backflow during syringe withdrawal.

A disposable valve assembly with a bayonet engagement mechanism seals robotic surgical instrument channels.

Segmented tapered hemostasis valve reduces insertion force while preventing blood loss.

A connector supports a sealing valve and straightener to introduce guide wires into vessels.

Torsion deforms an hour-glass valve membrane to seal varying guidewire diameters without manual intervention.

An injection port backflow control device with a duckbill valve and bellow prevents fluid backflow in catheter systems.

A hemostatic valve employs a biaxial braided structure to adjust its sealing diameter, accommodating varying device sizes without fluid leakage.

A segmented seal member with a central sealing zone and peripheral leg engages a cartridge to maintain fluid-tight integrity.

A flow regulator membrane deflects to restrict blood flow paths based on pressure differentials.

Radial segmentation enables reliable sealing and easy cleaning, resolving leakage issues in reusable medical devices.

A hemostatic device uses adjustable band bodies connected to non-linear hole portions on a support member to secure a pressing portion.