Intravenous Devices TRIZ Cases

Sectional core reinforcement and spacers tune shaft stiffness to cut vibration and knocking while preserving torque transfer in catheter pumps.

Local core sections stiffen a flexible hollow shaft to cut vibration, noise, and wear while preserving torque transfer and tight bending radii.

A compression fitting with an anti-tamper sleeve secures corrugated medical tubing while improving installation flexibility over rigid copper piping.

Pressure sensors and coordinated valve switching keep dual-pump flow continuous while suppressing pulsations in sensitive downstream analysis.

Real-time positron detection adjusts saline split flow to keep 82Rb elution activity stable as generator output changes over time.

A post-through slit valve connector keeps IV fluid pathways sealed during separation and resists accidental dislodgement under tension.

Gravity-assisted wedging replaces lead screws and knobs to secure medical equipment on IV poles with less effort, time, and hardware.

A tension-triggered tubing connector separates safely while automatic valves block leakage, contamination, and accidental reconnection.

A variable-pitch push-screw drive and collapsible barrel keep intraocular lens delivery force and speed controlled while reducing injector length.

A hinged tamper-evident syringe container secures a preset dose yet opens quickly, reducing dosing errors in emergencies.

A biopolymer layer extending beyond a compressible manifold helps block tissue ingrowth while supporting granulation and wound healing.

Sensors track fluid volume and flow in real time, helping caregivers prevent spills, discomfort, and hygiene risks in collection care.

A pre-strained torsional spring delivers multiple fixed doses without re-arming between injections, reducing user error and mechanism complexity.

A combined scrubbing and disinfecting cap simplifies IV catheter connector cleaning, cutting steps, components, and procedure time.

An integrated suction channel in the electrosurgical handpiece removes smog at the tip, preserving visibility without hindering manipulation.

Integrated gas flow measurement and feedback control regulate gas dissolved in high-viscosity resin to improve molding consistency.

Two integrated disinfectant cups on a flush syringe cut separate scrubbing steps while improving aseptic connector disinfection and CRBSI prevention.

An auto-closing valve and filter basket let a removable waste manifold limit leakage, odors, noise, and volume estimation errors.

Multiple filters with different pore sizes sort tissue fragments during collection, helping preserve graft performance by selecting suitable particle sizes.

A rotatable locking member adjusts split-ring diameter for quicker blood pump inlet tube clamping while keeping ventricular mounting secure.

Dual chambers, a filter, and sensors let wound fluid be separated, monitored, and paired with instillation therapy for improved healing.

Positioning elements stabilize a medical container support plate inside packaging to prevent particle generation and preserve sterile readiness.

Spacer elements and retaining walls let one tray hold different syringe formats securely while preventing glass contact and handling damage.

A split-shell canister uses a sub-micron gas filter, one-way valve, and pressure pass-through to separate fluids and hold stable suction at low flow rates.

Shape-memory clamping wings secure and release a cardiac support system for controlled minimally invasive implantation with less surgical trauma.

A ratchet-driven ram and lockout mechanism enable precise repeated self-injection from a prefilled cartridge without frequent refilling.

A tray package folds into a tube holder, cutting assembly cost while securing sterile single-use blood collection and preventing reuse.

A stepped trim member profile redistributes stress in a syringe stopper to cut gliding force and stabilize injection time without lubricants.

A movable securing sleeve and latch make cable or hollow-body connections quick to lock and release while reducing accidental disconnection.

A barrel-integrated test strip checks liquid for fentanyl and other adulterants during aspiration without setting aside product for testing.

A dual-chamber cap with seals and absorbent antimicrobial material fits male and female luer connectors for consistent continuous disinfection.

A sealing ring and spring sleeve prevent accidental self-destruction at zero position while enabling safe needle retraction and low residual liquid.

A sliding swab cartridge and disposal chamber keep fresh swabs aligned with needleless connectors for consistent disinfection and used-swab removal.

Separated suction and air-leak channels in a multi-layer NPWT connector stabilize pressure, improve fluid aspiration, and reduce wound disturbance.

One-way valves and pressure switching purge exudate into a secondary container, expanding canister capacity without interrupting therapy.

A tuned loop resonator detects resonant shifts at the skin surface to locate veins accurately without complex ultrasound or NIR imaging.

A magnetically levitated pump built into the dialyzer cuts tubing, setup steps, hemolysis risk, and contamination in blood treatment.

Wider two-rib stopper spacing and a low-friction surface reduce tilting and barrel friction while preserving syringe seal integrity.

A movable safety shield, integrated venting, and anticoagulant mixing simplify ABG sampling while improving visibility and air bubble removal.

Annular actuation elements compress the heart in sync with systolic and diastolic motion to improve output without bulky external support.

A coupling mechanism locks IV tubing at the pinch point to prevent accidental or unauthorized flow-rate changes during infusion.

A pre-attached disposable sleeve and tip create a tight dental syringe seal that limits cross-contamination while keeping application quick.

A pointed-tip inserter works with standard IOL injectors to reduce eye tissue stress, placement variability, and implant dislocation.

A layered analgesia patch with aligned needle windows numbs skin before injection while guiding placement and preserving normal jab motion.

A degradation-modulating layer controls bioresorbable dressing breakdown to extend wear time while preserving easy removal in negative-pressure wound therapy.

An apex-grip applicator tip and flexible tube let a robotic arm place and release haemostatic material more precisely at laparoscopic sites.

A receiver valve seals when the manifold is removed, containing liquid waste and odors while improving fluid volume estimation.

Peristaltic pump-driven tubing creates lifelike vascular pulsation in cadaver models, improving ultrasound-guided nerve and vessel identification.

A flexible dual-attachment support structure helps larger ostomy waste bags hang on different stands and extend time between emptying.

A motor-driven pump infers supply pressure from motor voltage, reducing sensors, system weight, and infection risk in tissue therapy.

A pre-assembled NPWT pocket uses reticulated silicone to keep drainage pathways open and let clinicians observe the wound.

Increased modulus and compression ratio help laminated syringe stopper ribs preserve sealing after stress relaxation.

A medicament dispenser uses a fixed-volume dosing chamber and piston to deliver precise doses without visual estimation.

A medical device heater uses a top-opening receptacle to guide liquid-carrying components into the heating zone.