Medical Devices TRIZ Cases

An infusion pump system determines user-specific dosage parameters through closed-loop feedback mechanisms.

Segmented lumens isolate bladder pressure while positive air clears dependent loops, preventing reflux.

Segmented pump assemblies paired with specialized cartridges deliver precise insulin doses while reducing device size and eliminating frequent refilling.

Applicator tip applies cyclical mechanical force to enhance skin formulation absorption while electromagnetic energy assembly delivers pulsed light therapy.

A two-stage neurostimulation device alternates rapidly and slowly varying stimulus sequences to desynchronize pathological neuronal activity.

Resilient rim expands automatically to form seal, while stem pulls to break suction for easier removal.

Varying wall thickness along the bladder length compensates for pressure variations to maintain consistent flow rates and eliminate residual fluid.

Segmenting the cap into a reusable body and disposable mesh component eliminates cleaning burdens while maintaining hygiene.

A mechanical fault indicator detects strip breakage in an inhaler, preventing under-dosing by blocking further advancement of the damaged medicament strip.

Wearable recognition devices capture scene data and extract salient features to build a searchable memory database for rapid recall.

A digital biomedical device uses a reactive metal structure to release cavity contents via self-propagating reaction.

A medical waste collection system recirculates fluid through an optical sensor module to measure transmitted and scattered light for blood concentration.

Segmented gas pathways and integrated liquid-air separators prevent clogging in multi-orientation canisters, ensuring reliable reduced-pressure therapy.

A flexible porous spun plastic fiber web defines a liquid collection chamber that draws fluid through its structure.

A chemically strengthened glass impeller with a skirt structure eliminates distal bearing wear to reduce hemolysis in blood pumps.

A dual-access vascular port design integrates a lateral aperture to support high-flow procedures like apheresis alongside standard routine access points.

A wearable drug delivery device enables one-handed operation through a segmented grip and control interface.

A synchrotron control device constructs operation data from module items to enable rapid ion beam energy changes.

An implantable infusion pump delivers therapeutic molecules directly into the hepatic artery via a connected catheter.

Tapered catheter insert channels blood through a smooth lumen, reducing exposure risks and hemolysis during sampling.

A pressure sensor detects upstream fluid pressure changes to measure actual delivered volume, correcting volumetric inaccuracies without adding flow sensors.

Segmented capillary tubes reduce device complexity and manufacturing costs by eliminating complex sealing members in the radial assembly.

A method stabilizes infusion rates during device transitions by calculating rise times and sending pre-start messages to secondary pumps.

Portable synchronization station connects inhalers to remote base stations via wireless interfaces for automated data exchange.

A manually adjustable nebulizer interface varies power supply to the aerosol generator.

S-shaped legs in the flexible connector reduce mechanical damping on the piezoelectric element, preserving vibration energy and aerosol output rates.

Intermediary support device bears urine bag drag forces, eliminating abrasive sawing effects on the penis while maintaining patient mobility.

A surgical instrument integrates gas flow paths within its shaft assembly to maintain cavity pressure during minimally invasive procedures.

A handheld biomaterial delivery device uses a movable sealing nib and angled discharge chute to deflect powder onto surgical sites.

Algorithms correct capacitance volume effects by adjusting plunger over-travel to compensate for syringe expansion, ensuring accurate contrast media dosage.

A compression strap integrates a near-infrared lamp to visualize blood vessels through skin.

Removable adapter seals fluid collection container vents, enabling gas suction lines to prevent bag inflation during high-flow drainage.

A dual-housing insertion device uses a torsion spring and cam assembly to drive a carrier body, reducing patient trauma during rapid needle insertion.

Segmenting the nicotine reservoir from the heating zone prevents thermal degradation while maintaining consistent dosing.

A DaRT source combines beta and alpha radiation for tumor destruction.

A bidirectional electroosmotic pump uses electrical fields to drive fluid flow through charged membranes, eliminating mechanical wear in implantable devices.

A bedside system delivers tailored light and sound sequences using group meta-models derived from user sleep patterns.

Barcode cassette reader detects fluid delivery specifications to prevent decimal input errors in infusion pumps.

A refill bottle uses a spring-loaded movable lid to uncover a filling projection for liquid transfer.

A hub attachment collar secures catheters to medical apparatus actuators through a zoned mechanical interface.

Wedge-shaped porous material anchors in labia folds while a rear outlet eliminates torque, preventing leakage from anatomical variations.

Microcontroller measures charging and discharging times in piezoelectric circuitry to identify discharge failure.

A biased elastomeric fin structure secures a catheter to a port stem through elastic deformation.

Nested sensor system measures piston rotation to automate dose data storage, resolving manual recording errors.

Modular tissue forming units overcome diffusion limits by using negative pressure to perfuse cells, ensuring adequate oxygen supply.

A needle spacer with a depth-stop feature and transparent flange ensures precise 4 mm to 8 mm insertion while maintaining a 90-degree angle.

A high frequency control device segments storage into hard disk and local memory to retrieve pattern data rapidly.

Longitudinal and radial grooves in the handle enable single-handed ampoule fracture while a filter prevents shard penetration.

Replacing mechanical degraders with an RF linear accelerator enables rapid energy switching and reduces neutron generation.