Infusion Syringes TRIZ Cases

A proximal end cap with a distal wall maintains syringe carrier engagement in an automatic injection device.

An elongated guide wire aligns the spinal implant cap with the main body, ensuring reliable filler contact between vertebral bodies.

A syringe end-piece featuring a dual-diameter channel resolves connector incompatibility and breakage risks while minimizing dead volume.

A pre-labeled syringe uses color-coded zones to map patient weight directly to drug dosage volumes.

Snap-fit sealing prevents fluid leaks and odor escape, ensuring reliable suction for chronic wound healing.

A medication delivery device incorporates a hinged finger pad that extends outward to provide a secure grip during operation.

A retractable sealing body accommodates needle insertion while preventing contamination and maintaining fluid integrity.

A retinal treatment device uses a flexible tip to conform to the retinal surface and inject therapeutic agents through an inner tube.

Expanded fluoropolymer barrier layers prevent medicament degradation by inhibiting leachables from elastomeric stoppers.

An integrated syringe device merges a plunger shaft with a cap to infuse fluid and engage a luer connector via a latching mechanism.

A screw mechanism advances multiple syringe plungers simultaneously, resolving manual operator strain and injection precision trade-offs.

Segmented plunger assemblies with enlarged thumbrests improve ease of operation for users with rheumatoid arthritis or reduced dexterity.

A multiple site injection system uses a plunger ratchet mechanism to deliver precise microliter doses while minimizing medical waste through component reuse.

Two interlocking flange components rotate relative to each other, expanding lateral extent for better leverage while collapsing to reduce packaging footprint.

Flat annular surfaces and an elastomeric ring reduce dead space in detachable needle syringes by compensating for manufacturing tolerances that cause leakage.

An OLED sensor device illuminates drug delivery surfaces using transparent electrodes and organic layers to emit light through a central layer.

A mixing syringe pierces a foil seal to combine powder and liquid before injection.

Reduced-pressure thermal fusion eliminates fine pinholes in PTFE skived films, ensuring water vapor impermeability and tear resistance during injection molding.

An integrated apparatus collects whole blood and dispenses precise diluted volumes, eliminating cross-contamination risks inherent in manual sample handling.

Segmenting the pump housing from the disposable cartridge reduces device complexity while maintaining reliability through a piercing cap mechanism.

Rotational screwing action replaces direct pressing to improve dosing precision while reducing ergonomic strain on user fingers.

Hyaluronic acid carriers suspend acellular tissue matrix particles to resolve injectability versus resorption trade-offs.

A helical needle pierces tissue to guide an inflatable sleeve that expands the access opening.

A foldable protective sleeve containing medical lines uses rigid members and transparent panels to organize tubing and prevent contamination.

Interchangeable adapter assemblies maintain reliable seals across 3 mm to 15 mm instrument sizes, eliminating complex assembly procedures.

Asymmetric curved teeth allow cross-over rotation of a needle hub, correcting misaligned injection needles during automated assembly.

A forceps plug uses a cam groove to guide a boss that deflects an arm until it breaks.

An interlocking connection between a resilient inner element and a dimensionally stable sleeve prevents needle shield slippage.

A syringe barrel features a lateral projection presenting graduated scale markings parallel to the plunger fiducial line.

Surrogate syringe barrels replicate sterilization conditions to measure retention forces, preventing plunger stopper movement under vacuum.

A nanofiber web filter medium with a three-dimensional network structure enables rapid liquid drug drawing.

Mechanical coding on housing components prevents incorrect cartridge assembly, reducing medication error risks in reusable injection systems.

An integral needle tip protector extends to shield the sharp point, reducing fistula puncture risks and hemorrhage rates.

An integrated flow path in a drug mixing kit syringe combines contents from two containers, reducing contamination risks during emergency use.

Centrifugal force accelerates silicone drainage in syringes, reducing study duration from years to hours while maintaining measurement precision.

A surgical instrument uses a dedicated priming assembly to fill the dispensing shaft before operation.

A fluid connector uses a self-latching outer sleeve and detent to establish secure engagement between medical containers.

Internal flow passages in a volume-displacing member reduce deadspace volume and eliminate air bubble entrapment in medical devices.

A foldable winged needle delivers chemotherapeutic agents directly into bone marrow cavities.

A catheter with a swellable material expands its lumen after insertion to accommodate dilator extraction.

A multi-functional specimen collector uses an inverted hanging portion to orient the barrel for centrifugal separation of blood components.

A support assembly uses biased arms to grip tissue and a guide for controlled needle depth, resolving inconsistent placement from manual pinching.

A medicament delivery device incorporates a locking mechanism with a rotatable part and restraining member to control plunger rod movement.

Geometric surface structures on syringe components reduce mechanical friction without adding silicone or PTFE coatings.

A touch sensor with a flexible element and pressure sensitive component generates output signals upon user interaction.

A vial cap assembly with a valve member seals medical fluid reservoirs while enabling direct syringe connection.

An adjustable needle mechanism standardizes fluid delivery pressure and volume, resolving cervical resistance variability during sentinel node mapping.

Localized threads anchor the fenestrated needle in bone cortex while a removable stylet prevents tip obstruction during insertion.

A drug eluting implant delivers steroid material into nasal turbinates via a hollow bore needle system, eliminating blindness risks from aqueous injections.

A coiled flexible linkage unrolls to drive a plunger, eliminating bulky leadscrews and reducing the pump footprint.