Infusion Syringes TRIZ Cases

Vacuum chambers in microneedle devices extract blood efficiently, reducing pain and complexity compared to traditional phlebotomy.

A syringe connection uses a softer material to absorb mechanical stresses during connector attachment.

Segmented pump design with spring drive system improves portability while maintaining seal integrity.

Segmented barrel diameters reduce plunger friction during dispensing while maintaining a gas-tight seal across -25°C to 40°C freeze-thaw cycles.

Anti-tampering apparatus captures drug delivery device caps using retention members and obstruction surfaces to prevent recapping.

A syringe assembly uses a plunger rod protrusion to lock within the barrel after injection.

A syringe translates internal pressure changes into a visually detectable piston movement via a biasing element.

Injection monitoring circuitry analyzes timestamped force measurements to determine end of injection without displacement sensors.

Circumferential grooves replace linear slits to prevent tearing and leakage during interventional device insertion.

An implantable drug infusion port uses an electromagnetic localizer base and antenna array to detect precise relative position.

A movable sleeve on an injection assembly contacts the skin first, guiding needle insertion angle and preventing lateral bending during subcutaneous delivery.

A safety syringe uses an elastic cap to cover the needle and a double filter to remove foreign matter from fluid.

A medical injector features a dual cap system where friction fit engagement allows simultaneous removal of protective layers.

Elastic valve seals piercing needles within connecting holder to prevent gas leakage and needle stick injuries for clinical staff.

Segmented deflectable needles allow controlled cement injection to stabilize fractures while preventing marrow ejection through micro-fractures.

Lateral electrical contacts on a cap-shaped electronic encoder module enable reliable charging while flexible shell sealing prevents moisture ingress.

Integrated closed system processes fat and targets plantar fascia, reducing infection risk and surgical complications.

A medical delivery device converts linear push movement into rotational plunger motion using inclined surfaces and a ratchet interface.

Segmented aspiration syringe uses sliding housing to create vacuum, ensuring reliable tactile feedback during blood vessel access.

Segmented plunger prevents premature shield activation during drug reconstitution while ensuring automatic needle coverage post-injection.

A plunger brace loop stabilizes injector fingers, maintaining a straight aspiration path to prevent unintended intravascular injection.

A threaded plunger syringe converts rotational knob movement into precise longitudinal fluid delivery.

An expanded fluoropolymer film on syringe stoppers prevents leachable contaminants from degrading biopharmaceuticals while maintaining seal integrity.

Varying cross-sectional profiles in a continuous helical reinforcement member balance flexibility and torqueability along the shaft.

Weight-based graduations and an adjustable sleeve eliminate calculation errors, ensuring accurate dosing during emergency medical situations.

Extender member enlarges grip surface to ease manipulation for users with dexterity issues.

Metallocene polypropylene syringe barrels with organophosphate clarifiers balance mechanical strength and low extractability against material cost.

A tear-drop enteral syringe uses a tethered plunger to increase fluid capacity while maintaining standard pump compatibility.

Nested dual-lumen needles enable percutaneous cyst treatment by combining aspiration and injection to reduce complications.

Organosilicon PECVD coating eliminates silicon oil contamination while enhancing barrier properties and breakage resistance for biologics.

Retention lugs on a threaded cap coupling provide localized pressure points that accommodate thread variance and prevent premature disengagement.

Controller merges basal and bolus insulin doses using physiological data to prevent hypoglycemic excursions from excessive total delivery.

An ultrasonic cutting apparatus trims syringe barrel nozzle tips using high-frequency vibrations to maintain surface smoothness.

A medicine dispensing device uses segmented color-coded zones to map patient physical characteristics directly to pre-determined treatment and prophylaxis dosages.

Angled syringe barrel and plunger seal prevent particulate migration between components, ensuring efficient homogenization of suspensions.

A syringe plunger plug extends beyond the barrel to physically block backward movement after fluid ejection.

A spring-loaded plunger injector regulates fluid volume and pressure to manage contrast agent delivery rates.

An RFID reader measures backscattered signal carrier power to detect needle shield integrity in medical injection devices.