Burettes/Pipettes TRIZ Cases

Segmented piston cylinder unit prevents cross-contamination and aerosol formation during low-pressure dispensing.

A nozzle cap with a protuberance forms a frictional seal around the dispense nozzle to prevent reagent accumulation at the tip.

Circular cylindrical locking element secures pipette transmission parts, eliminating wedge mechanisms to reduce operational force and assembly complexity.

A heatable pipette needle conducts current through its inner wall to generate resistive heating along the entire length.

A lab tool adapter structure engages pipettor shafts to secure and transport modular equipment within automated liquid handling systems.

Temperature-responsive plugs extend sample hold time while enabling rapid ejection, resolving the trade-off between storage stability and operational speed.

Segmented pipette components allow individual repair of the gas seal ring, resolving maintenance difficulties in nucleic acid purification modules.

Stopper receptacle positions lighter liquid centrally, preventing wall adhesion and turbulence that impair optical tension readings.

A droplet generation device uses a variable volume cavity to produce uniform nanoliter-scale droplets without precise microchannels.

Biasing supports keep magnets against the vessel wall to concentrate eluent and capture beads.

Automated access control prevents uncontrolled removal while eliminating manual tracking effort.

Capillary forces drive liquid through a channel with selectively opened vent holes, enabling orientation-independent operation without gravity reliance.

A pipette structure with a bellows joint enables pivotal movement between body sections for precise microwell targeting.

A microfluidic cartridge uses a compressible elastomeric conduit and duckbill valve to dispense fluid portions.

A solution jetting device uses a movable plunger and drive mechanisms to control fluid delivery.

A dispensing apparatus uses an imager to capture droplet size and shape for precise micro-volume liquid delivery.

Segmented locking and sealing components reduce actuator drive volume below 9 mm for compact pipetting arrays.

A dual function control member integrates cone ejection and volume adjustment locking to reduce device complexity and musculo-skeletal strain.

Replacing heavy metal pushrods and pistons with molded plastic reduces operator fatigue while maintaining channel-to-channel consistency.

A pipette assembly integrates a filter and check valves to purify fluid samples during transfer.

Sealing the tip against the piston eliminates shaft seal friction and ullage space errors, improving measurement accuracy.

A dispensing needle uses a ceramic capillary section to guide viscous materials through a dedicated channel.