Infusion Syringes TRIZ Cases

Transparent light guides diffuse illumination to reduce glare on the dose window and improve optical character recognition accuracy.

A syringe adapter uses a nested membrane and locking collet to secure fluid connections.

A catheter tunneler adapter couples to implanted lumens for precise stylet guidance and secure fluid flushing.

Rotating the dose indicator displaces a threaded gauge element axially to show the set dose, eliminating axial translation of components during setting.

A stabilizing trocar maintains positional stability during extravascular therapeutic agent delivery.

A dosing pen uses a countdown timer and finger sensor to trigger visual or haptic alerts upon injection button depression.

Spectral modulation sensor replaces fluid columns to eliminate contamination risks while enabling in situ calibration via standard hospital monitors.

A needleless injection shuttle nib uses a ball to exert radial pressure on the plunger within a tapered bore.

Silicon-free cyclo-olefin syringes maintain embolic agent stability by preventing particle agglomeration and adhesion during long-term storage.

A specially-programmed computer module attached to a medication cartridge calculates and modifies dosages based on real-time physiological data.

Heated gas and product improve skin absorption while reducing friction for better user comfort.

An agent delivery device uses a distal impingement structure to mix multi-part agents, preventing premature curing and clogging within catheters.

Caps maintain safety needle devices in a fill state to prevent accidental needle sticks during manual assembly.

A nested introducer sleeve shields a stiffening cannula, preventing tissue trauma when inserting through tough vascular tissues.

A fluid delivery device uses a disengaged drive train and vial adapter to fill medicament.

Deflectable arms transition states to provide audible feedback, preventing accidental needle exposure during injection.

A syringe plunger engages a resilient bung to stretch sidewalls and move the end surface into the barrel aperture.

A needle shield slides between guarding and injection positions to stabilize the syringe tip.

A foldable finger flange pivots between a compact shipping profile and an extended use position, reducing packaging footprint while enhancing operator control.

A hypodermic interface assembly uses a separable cannula carrier to secure the needle during insertion.

Segmented visual zones replace manual calculations to reduce administration time and dosage errors.

A retractable sealing element accommodates a hollow fluid delivery needle through elastic deformation.

Gelatin-based bowel prep in a syringe masks taste to improve patient compliance and colon cleansing.

A vascular guidewire controller grips the wire near the access point and actuates shape memory alloy tips for precise navigation.

A vascular access device adjusts needle length via a cam mechanism to prevent muscle layer penetration during insulin administration.

A syringe cap with a protruding member creates a tunnel through settled material to enable degassing.

A female-female syringe adapter connects to male nozzles to facilitate complete diluent transfer during drug reconstitution.

Segmenting terminal sterilization from filling preserves drug integrity while maintaining device sterility via self-healing seals.

A locking band transitions to a locked configuration, preventing accidental overdoses by physically blocking dose settings above a preset maximum.

A disposable wearable insulin dispenser uses a shape memory alloy wire to actuate the pump mechanism for reliable medication delivery.

Segmenting the barrel isolates polyvinyl alcohol from silicone lubricants, preventing contamination while maintaining smooth plunger movement.

Roots exceeding crest diameters in the gasket screw lower clamping force while maintaining a tight plunger fit.

A syringe uses a resilient member and retaining member to retract the needle into the plunger cavity.

A robotic manipulator draws and injects radiopharmaceuticals using shielded containers, reducing personnel radiation exposure during handling.

Accelerometer detects user activity levels to automatically adjust insulin dispensation rates, correcting glucose management without manual input.

Adapter member connects syringe to container via flexible closure and cannula, preventing needle bending during septum piercing.

A light concentrator integrated with a transparent window directs illumination onto an insulin device surface to enable accurate type identification.

A syringe assembly uses a roller carriage to displace the plunger along an elongate housing for smooth manual operation.

An integrated needle assembly eliminates dead space in medicament injection systems while a ratchet mechanism provides tactile feedback for precise dosing.

An actuator shifts a cap's inner seal member to prevent fluid leakage while enabling rapid device exchange through dynamic locking.

A safety needle shield locks the cannula in place using a resilient projection member to prevent accidental re-exposure.

Segmented cylindrical housing portions isolate individual injector pistons, preventing surface flaws and contamination during bulk transportation.

Separate barrier layer prevents microorganisms from contaminating fluid medium during transfer while maintaining sterility.

A syringe stabilizing element with a perpendicular support surface maintains secure alignment within the injector manifold.

A shielded obturator uses a rotatable switch to control blade exposure and retraction via a movable shaft portion.

Position feedback regulates plunger speed to ensure uniform adipose tissue distribution, resolving non-uniform grafting caused by manual dexterity.

Tapered connection breakable portions in syringe caps separate through simple pulling to eliminate sharp burrs and prevent reuse.

A safety blood collection holder uses a pivotable shield on a rotating collar to cover needles.

Helical cage members restrict access to prevent misconnections, and a self-righting base eliminates manual alignment errors.

A resettable injection training device uses a sliding reset shuttle to unlock the safety shield, reducing user anxiety during self-injection practice.