Pressure Infusion TRIZ Cases

See how variable voltage input and real-time temperature feedback maintain safe heat pump surfa

See how a Peltier heat pump with continuous temperature feedback and baffle design prevents hai

See how a Peltier heat pump with closed-loop temperature feedback maintains safe surface temper

See how pump-driven rapid infusion replaces gravity-fed delivery to reduce gene therapy adminis

A piston-defined constricted flow path creates a pressure drop that keeps infusion flow substantially constant without electronics or source-specific pressure tuning.

A detachable needle hub coordinates needle and cannula motion to reduce skin tenting while keeping drug delivery and hub removal easy.

Bonding a strain gauge to a flexible pump reservoir enables direct occlusion detection with simple, accurate resistance-based sensing.

A monolithic plastic shell with metal support cuts weight and noise while improving sealing and assembly in portable drug infusion pumps.

A power fluid drives a piston instead of pumping the medicine itself, preventing aggregation and keeping dosing accurate across viscosities.

Opposed spur gears and a pin-guided arc path limit each delivery cycle to a preset dose, preventing overdose without added electronics.

A dual-reservoir metering layout uses valves and a safe secondary dose to improve insulin pump accuracy and prevent accidental overdosing.

A resilient diaphragm safety valve isolates residual medication at disconnect, preventing infusion line spillage, exposure, and waste.

A single motor drives both needle insertion and pumping, cutting injector size, assembly steps, wear, and positioning variability.

A modular conduit, coupling, needle, and shield assembly cuts sterilization footprint and particulate risk while preserving container sterility.

Separating the reservoir and needle assemblies cuts sterilization footprint, lowers particulate risk, and preserves closed container integrity.

A dual-flow port connector decouples the reservoir, pump assembly, and insertion tube, enabling thinner modular drug injection pumps.

A spring-biased inserter uses skin adhesion and controlled withdrawal to place and couple the cannula reliably in a compact infusion set.

An SMA-actuated exposure valve opens sealed fluid paths during sterilization, then re-seals to preserve hermetic drug delivery operation.

Manual spring loading just before dosing avoids shelf-life deformation while powering needle insertion, drug pumping, and retraction.

Fluid pressure moves a shuttle and retention bar to switch needle insertion depth, avoiding multiple needles and electrical actuation.

A dual-flow port connector lets drug reservoirs and injection assemblies change independently while keeping an electroosmotic pump compact and stable.

Dynamic pistons, valves, and deformable seals improve on-body injector reservoir sealing to prevent leakage and time drug release accurately.

A film-formed reservoir built into the insulin pump housing removes air pockets and dead volume for smaller size and more accurate delivery.

A plunger-driven patch pump draws from standard non-collapsible vials while avoiding vacuum buildup for continuous drug delivery.

Tapered retaining members guide syringe alignment and axial ejection, cutting injector loading and removal effort without manual rotation.

Adhesive skin lift triggers spring release for controlled cannula insertion and retraction, reducing infusion set size, cost, and malfunction risk.

A separated reservoir and dual-plunger pump chamber cut plunger area, friction, and motor power while maintaining precise wearable drug dosing.

An edge-coupled remover peels the adhesive liner from the outside in while removing the needle shield in one step, avoiding perforations.

A rotatable sleeve and dual valving let one metering pump aspirate and dispense through different channels, cutting wearable injector size and complexity.

A sliding hollow needle with side opening and dual seals improves insulin dosing accuracy by preventing backflow in a compact, low-energy valve.

Haptic, acoustic, and visual dose feedback helps a micro dosing chamber deliver precise microliter therapeutic fluid volumes.

An air-detecting stopcock isolates the patient line fast enough to contain bubbles in a buffer path during high-pressure angiography injection.

A pivot-linked clamp grips syringe barrels and handles across sizes, avoiding holder swaps in automated drug dispensing.

Automated cartridge pumping delivers protocol-based medicament doses with saline flushes to reduce cardiac arrest dosing and record errors.

An inclined, eccentric gel-filled sensing column reduces sensor footprint while preserving pressure and force measurement in compact assemblies.

A moving basal engine combines basal and bolus actuation in one compact pump, reducing wearable medicament delivery complexity and size.

Outward tube expansion and a guide channel let compact nutritional infusion tubing install one-handed with more reliable positioning.

A guide rail and guide channel reduce peristaltic tube elastic resistance, enabling smoother one-handed loading and secure pump attachment.

A torsion spring rotates a piston-driven inserter to place a cannula, retract a captive needle, and latch securely to a patch pump.

A spring-biased inserter and adhesive base lift skin during withdrawal, enabling reliable cannula coupling and secure infusion set placement.

A flexible sidewall rolls inward under piston action to reduce pleating, lower syringe cost, and maintain precise fluid delivery.

A lid-linked pivoting mechanism retracts the peristaltic pump unit during opening, making infusion tube insertion easier without losing pumping pressure.

A compliant coupling lets the needle holder absorb off-axis septum forces, reducing leakage and improving injection reliability.

A skin-lift adhesive release lets the spring couple the cannula during withdrawal, cutting inserter size and weight while improving insertion reliability.

A rotary fixing unit and door pressing structure secure infusion tubes of different diameters while supporting pump miniaturization.

A spring inserter uses adhesive skin lift during withdrawal to couple the cannula into the infusion base with less manual effort and higher delivery reliability.

A snap-fit or bayonet plunger coupling lets reusable pump parts detach from prefilled reservoirs while preserving plunger alignment and dosing accuracy.

A heat-activated valve temporarily opens sealed fluid paths for sterilization, then restores a hermetic seal for drug delivery operation.

Drying moisture and residue after skin numbing helps CGM sensors and insulin pump cannulas adhere longer without premature detachment.

Multiple membrane bulges create parallel pump volumes that stabilize pressure and keep infusion flow more consistent as the pump empties.

A spring-biased inserter uses adhesive skin lift to trigger cannula coupling, improving insertion reliability while keeping the assembly compact.

Segmenting the pneumatic pump isolates air tolerance, eliminating complex detection systems while maintaining precise flow control.