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.

Tapered pusher guide restricts flexible hemostasis valve movement to prevent blood leakage without increasing catheter base size or adding coil springs.

Adaptor links robotic catheter systems to hemostasis valves through rotatable openings, enabling precise navigation in tortuous vascular anatomy.

Segmented pusher ribs generate turbulent flow paths that eliminate stagnant regions and trapped residues within vascular access devices.

Self-healing polymer valves autonomously repair punctures via dynamic covalent bonds, eliminating blood leakage and air introduction risks.

A pressure-sensing bleed-back valve integrates a transducer into the main body for real-time in vivo monitoring.

Adjustable bands secure an inflatable compression member over distal radial artery punctures, reducing blood loss and accelerating hemostasis.

A flow restriction device regulates blood velocity to prevent hemolysis, while a split septum shield contains spillage during disconnection.

A conversion adapter links ISO 80369 female connectors to non-standard male parts via a locking unit and rotation control mechanism.

A valved connector uses a passive seal engagement apparatus to manage fluid flow through its lumen.

A hemostasis valve seal member deflects into contact with a plunger tubular region to maintain a fluid-tight closure.

Resilient blood control valves open via radial compression, resolving the trade-off between flashback visibility and spill prevention during catheter insertion.

Segmented elastic valve prevents blood backflow by maintaining positive pressure during male luer removal.

Hourglass and cross slit seals in a single piece prevent gas leakage across varying instrument diameters.

Segmented valves with movable flaps enable quick sheath removal without disturbing implanted devices.

Frangible seams divide the hub and sheath for trauma-free removal while the valve prevents blood effusion.

Nested ratchet mechanisms convert rotational grip motion into linear gasket compression, securing blood flow control during stent graft delivery.

An intermediary adapter resolves inlet port size mismatches to ensure leak-proof attachment across varying valve manufacturers.

Compressible pellets apply constant pressure to a flexible valve element within the housing, resolving friction and sealing trade-offs in endoluminal devices.

Rotating the flexible tubular seal element adjusts the orifice size and seal pressure, preventing fluid leakage during instrument insertion.

Offset registering structures align conical gaskets to prevent blood backflow during catheter positioning.

Magnetic actuation replaces manual dexterity, resolving friction and setup complexity in neurovascular procedures.

An integrated pump dressing manages negative pressure across a tissue site, reducing system complexity while maintaining reliable therapy.

A rotatable valve liquid mixing infusor connects branch tubes to a central chamber.

Spring-loaded plunger engagement with locking members enables single-handed operation, resolving trade-offs between seal reliability and operational complexity.