Pressure Infusion TRIZ Cases

An integrated sterile assembly eliminates complex setup steps by routing medicament through a pre-filled reservoir and aseptic connector.

A thermostatting device heats medical fluid bags via a conductive surface and retention means.

A medical injection device uses a piston and selector to automatically evacuate gas from the inner space before dosing.

An infusion patch integrates a detachable anesthetic reservoir with a skin-access conduit to deliver pain relief directly at the cannula site.

An annular valve seat with an inward radial inclination contacts a disk-shaped valve body to stabilize liquid medicine delivery.

Reservoir pump automatically refills flushing fluid through a pressure-operated valve system, eliminating frequent syringe changes and sterilization.

Rotating retraction dial and isolated needle hub maintain precise intradermal positioning against external forces.

A patient-controlled analgesia device uses a dual-direction clamp to segment fluid flow paths and prevent unintended bolus refill during drug delivery.

A flexible cylindrical reservoir collapses to reduce patch-pump volume, resolving the trade-off between structural strength and space efficiency.

A self-injecting microneedle patch uses a pressurizing system to compress the reservoir and deliver medicament through the skin.

A force sensor coupled to a rotary pump rotor detects mechanical load changes during fluid delivery cycles.

Anionic polymer electrodes prevent gas generation during electrochemical reactions, ensuring continuous ion mobility and stable fluid pumping.

An integrated infusion set combines the inserter and hub to ensure full adhesion and correct catheter depth.

A cartridge insertion assembly uses a self-service locking latch to secure the drug container within the device pathway.

Segmented pump and reservoir units enable temporary disconnection from skin-mounted adaptors, resolving mobility constraints during patient activities.

A pump cassette uses a longitudinally articulable slider to secure engagement with the infusion pump body.

A hydraulic time delay mechanism uses fluid pressure to actuate a plunger after a set interval.

A leaf spring valve shutter assembly prevents unintended insulin free flow by closing the aperture when external pressure exceeds internal pump pressure.

Discrete rotation of the connector prevents twisting forces that compromise seal integrity while enabling flexible tubing routing for patient comfort.

A drop detector mechanism senses mechanical impacts on an infusion pump housing to trigger immediate safety countermeasures.

A pulse infusion device uses a bidirectional pump to move fluid through an internal reservoir and catheter.

Moving holding portions automatically join tube connectors to prevent blood backflow contamination in reusable multi-dose injection systems.

Segmented pumping units and preliminary action principles enable simultaneous multi-bag infusion, eliminating manual parameter resets.

A delay module triggers insulin bolus administration after a significant interval following data collection.

A high crack pressure valve controls medical fluid flow by maintaining a specific pressure threshold to prevent backflow and ensure delivery accuracy.

A wearable infusion device uses a redundant valve system to control fluid flow between the reservoir, pump, and outlet.

A flexible tube between the fluid delivery part and subcutaneous cannula absorbs external forces, preventing pain from rigid connections during user movement.

A rotatable infusion base allows users to adjust device orientation without detaching the cannula from the skin.

A detachable lid adapter creates an air gap between the container and the closure to enable smooth pouring.

Rotating a roll axially displaces against a flexible container, eliminating piston friction and improving dose accuracy.

Narrow bore tubing prevents siphoning effects through capillary pressure, enabling precise drug delivery without contamination.

Reversible module connections enable automatic compatibility verification to resolve the contradiction between device complexity and delivery precision.

Direct electromagnetic actuation of a small-diameter membrane eliminates mechanical reducers, reducing friction losses and extending battery autonomy.

Nested needle insertion and clutch-driven plunger reduce pain during deployment while maintaining reliable fluid path priming.

A fluid infusion device detects occlusions using a rotor cam element and sensor contact element to monitor axial displacement.

A medical pump actuator monitors its own energization properties to detect operational faults and initiate recovery actions.

Spring-loaded needle access devices control puncture depth through cam-guided locking and automatic retraction, addressing imprecise, non-repeatable injections.

A drug infusion device uses a bidirectional piston mechanism to drive syringe plunger motion for precise fluid delivery.

Rotating hub decouples needle angle from device orientation to stabilize insertion depth against external forces.

A vortex flow adapter generates alternating vortices to regulate medicament injection rates within a drug delivery device fluid path.

An inclined guide structure intercepts a collapsing protective flap and channels the needle point into a shielded secure space to prevent reexposure.

An adhesive carrier frame secures an infusion pump body to patient skin, eliminating tangled tubing that restricts movement and complicates maintenance.

A portable infusion device uses one electric motor to drive two syringes simultaneously via mechanical assemblies.

Segmented assemblies and a releasable locking mechanism resolve the contradiction between reliable needle insertion depth and complex setup procedures.

Electronic control loop adjusts needle insertion depth to accommodate varying body morphologies and injection types.

Parallel pumping segments operate with offset timing patterns to eliminate pulse-based flow disruptions and ensure continuous medication delivery.

A tapered piston front end reduces contact resistance against the seal, enabling easier initiation of fluid flow and supporting a compact portable design.

Movable syringe retaining elements engage within the pressure jacket bore to restrict axial displacement during fluid delivery.

A mounting housing with a tiltable well and spring-loaded inserter reduces manual insertion pain by automating soft cannula delivery.