Automatic Syringes TRIZ Cases

See how vacuum-sealed chambers and flexible membranes provide thermal protection for portable a

See how embedded electrodes and external contacts enable high-voltage leak detection in pre-fil

A flexible antenna that follows the device body enables compact drug delivery hardware with simpler integration and reliable wireless data transfer.

Stamped metal plunger bodies overmolded with plastic create a hollow rod that supports spring tuning for different drug viscosities.

A stamped metal plunger body with plastic overmolding balances spring force, energy input, and structural integrity for higher-viscosity drugs.

Sensor-triggered clutch locking limits the maximum dialed dose in an injection pen, reducing user errors while keeping dose setting simple.

A nested cycloidal and planetary drive boosts gear ratio and torque in a compact drug delivery mechanism while supporting precise dosing.

A weighted self-righting support keeps elongated medicament delivery devices upright for mixing and priming, reducing gas-driven dose loss and roll damage.

Pressure feedback and motor-driven plunger control keep cell injection volume consistent and automatically detect occlusions.

Axially spaced ribs keep plunger contact area stable under high extrusion loads, reducing friction variability in viscous drug delivery.

A staged membrane mechanism uses cartridge pressure to assist rupture, cutting manual activation force without bulky springs or levers.

A latching device and setting spring enable stepless injection speed control for thin needles and high-viscosity liquids without added mechanism bulk.

Capacitive skin detection limits needle release to proper body contact, preventing accidental medication expulsion and user injury.

Capacitive skin detection blocks needle deployment on hard surfaces, preventing accidental injection and user injury.

Capacitive sensing is tuned to recognize bare skin while rejecting fingers, clothing, and hard surfaces, so the needle deploys only at the injection site.

A capacitive sensor around the needle opening confirms skin contact before activation, preventing false triggers on hard surfaces.

Capacitive skin detection blocks needle movement and medication release until the injector is correctly placed on a sufficiently large naked skin area.

A wide-contact alignment accessory helps autoinjector users keep proper angle and force, improving injection consistency and comfort.

A rotatable collar and ramped trigger surface cut injection actuation force while securely retaining a spring-driven mechanism until release.

A dual-adhesive attachment member lets one electronic add-on module mount on different drug delivery pens without blocking dose-button use.

A removable magnetic module tracks dose wheel rotation and injection start/end points without bulky shielding or brand-specific pen integration.

A rotating shield lock and return spring coordinate fixed-dose delivery to block unintentional activation and prevent double dosing.

A rotating rod guide and torsion spring drive linear piston motion for stable, user-friendly dose setting and drug delivery.

Pressure sensing inside the medicament cavity tracks injection start and end times to verify dose completion and detect stalling.

A flexible arm with proximal and distal shields enables one-step needle connection and injection while reducing prep steps and needle-stick risk.

An axial coupling holds the release mechanism in position during transport, preventing unintended actuation, breakage, and plastic debris.

A piezoelectric harvester uses injection impact to power wireless completion confirmation with a time stamp and serial number.

A sliding housing and rearward biasing mechanism control needle advance and automatic retraction to prevent accidental punctures during injection.

A non-circular rod and guide stabilize syringe drive while cutting pump weight, noise, and sealing complexity for portable infusion.

A pivoting flexible arm and activation sleeve strengthen the needle guard lockout while keeping activation force low and reducing needle-stick risk.

Predictive creep modulus and a linear device model cut medical device testing time while preserving reliable validation under temperature, stress, and time.

A liquid-gas driving medium maintains constant outlet pressure in a smaller portable medical pressure container over extended use.

A user-released lock and fixed container-housing layout enable inertial injection and plunger actuation with fewer parts and lower cost.

A profiled slot and sleeve ramp rotate and release the plunger to prevent accidental advance and help ensure complete dose delivery.

Bi-folded liner segments expose skin adhesive during support removal, helping on-body injectors conform to body curves and peel off comfortably.

Capacitive plates and temperature sensing detect spring compression without contact, improving medication delivery state accuracy.

A staged actuator first extends the needle, then releases dispensing, enabling compact single-motion medicament delivery with built-in locking safety.

A flexible part and intermediate piston assembly create an audible click at end of stroke, confirming complete autoinjector dose delivery.

Cap removal moves a magnet past a coil to generate power for injection electronics, avoiding battery leakage and extra charging steps.

A rotation-restricting plunger release keeps the injection needle protruding after use, helping prevent drug leakage from the injection site.

A piston-style pen cap logs cap events and improves NFC sensor reception to support more accurate insulin dosing decisions.

Amphiphilic graft copolymer blends improve bond strength, melt strength, and printability in polypropylene-based medical materials.

An external spring layout boosts injection force in a shorter drug injector, helping deliver high-viscosity drugs with less deformation.

A single spring drives drug dispensing and needle cover movement, cutting parts and assembly cost while maintaining safe needle handling.

Mobile image capture verifies infusion reservoirs before activation, helping prevent wrong or expired medication use during self-administration.

A skin-adhered compressible base releases sterilization fluid during injection, improving autoinjector stability and reducing prep steps.

A removable safety cap locks the actuation unit, preserves sterility, and clarifies the correct injection end to prevent misuse.

Separate medicament subassemblies and a hinged pull mechanism prevent unintentional firing while enabling simple user assembly.

Passive RF modulation links plunger position to dosage data, avoiding battery depletion while enabling reliable injection monitoring.

A flexible-arm needle guard lock prevents accidental retraction before cap removal, improving autoinjector safety and ease of use.

A resettable push rod and replaceable needle assembly make automatic injection reusable, cutting waste, cost, and structural complexity.

A pivoting actuator and translating member use leverage to remove the needle shield while keeping cap retention secure before injection.

A single compression spring handles needle insertion, dose delivery, and retraction to cut part count while ensuring full injection and safe needle cover.

Attached detectors track drug temperature and warm-up time to signal when refrigerated injections are ready before viscosity or expiry causes use errors.

A worm-drive and screw-sleeve mechanism guides the plunger rod without rotation, enabling compact auto-injectors with long, accurate drug delivery.

A gas-cartridge transfer mechanism fills injection devices from vials on demand, cutting prefill waste and lowering sterile manufacturing cost.

A rotatable drive member sets piston rod position against bung variation, preventing first-dose loss and medication waste.

A single compression spring and delay box sequence needle insertion, full dose delivery, and safe retraction with fewer parts.

A rotating collar converts needle-shroud motion into rotation to dampen skin pressure and reduce bruising during injection.

A needle guard and detent coordinate spring-driven insertion and plunger actuation to limit exposure and control injection depth.

A spring-driven collar and needle shroud provide tactile and audible completion feedback to help prevent premature dose interruption.

Separating control and drive springs prevents high impact during needle insertion while ensuring accurate dosing of viscous medicaments.

An implantable device monitors tissue oxygen saturation to automatically administer naloxone.

A drive member with a flow restrictor maintains high pressure for consistent medicament dispensing.

Rotatable release shaft enables automatic needle retraction after injection to prevent accidental exposure and reduce handling risks.

A compact fluid dispenser uses a compressible spring member to drive a bellows reservoir through micro-capillary channels for precise medication delivery.

A helical safety device converts rotational torque into translatory motion to retract a pre-filled syringe needle, preventing accidental needle stick injuries.

A dual functioning biasing member drives a follower and shuttle to retract the needle after injection.

A self-regulating medical penetration device uses fluid flow resistance to position a hollow needle within tissue cavities.