Medical Devices TRIZ Cases

Flexible sheets replace hard materials to resolve the contradiction between structural strength and user comfort in physiotherapy devices.

A medical connector uses a slit head portion to form a flow passage during insertion.

A linear shuttle pump uses a detent apparatus to control piston axial movement within the chamber.

A drainage device pressure relief valve opens to admit air when suction exceeds a threshold, reducing negative pressure inside the tube.

Multi-sensor catheter measures urine parameters to monitor renal function, addressing limited monitoring capabilities in current medical devices.

A nasal irrigation system uses dynamic head orientation to maintain a liquid column in the nasal cavity for prolonged mucosal contact.

An arcuate tube mass flow meter uses inner and outer pressure sensors to determine fluid density and flow rate.

A syringe pump display unit visualizes the filling level using drive operating parameters to provide intuitive monitoring without additional sensors.

A thermo-sensitive heating coil changes resistance with temperature to enable precise power management in electronic cigarettes.

A minimally invasive electroporation device delivers antigens to epidermal tissues using spatially separate electrode arrays.

Slot-guided protrusions constrain axial carrier movement to prevent tilting and binding during medicament delivery.

A contrast media injector system verifies patient renal function against syringe thresholds before injection.

Segmented manifold members coupled to an expandable carrier layer resolve the trade-off between structural stability and adaptability to irregular wound shapes.

A disposable fluid level sensor detects low liquid and blocks delivery tube flow.

A wearable infusion unit features a secure arm-cast shell that integrates power and communication systems for precise medication delivery.

Pre-applied tampon plunger secures hemostatic agent to cervix, eliminating manual holding time during surgical procedures.

Focused ultrasound energy generates conformal lesions on fat lobuli surfaces to enable fluid drainage and stimulate cell apoptosis.

A wearable pump uses a sacrificial seal and expanding foam to generate negative pressure for tissue treatment.

Independent hardware monitors operational thresholds to shut down the pump, preventing unsafe conditions during unmonitored home therapy.

A hollow cylindrical applicator pierces a bio-absorbable lubricant capsule and inserts it into the vaginal lumen.

A device provides unilateral visual and auditory inputs to distract patients during medical procedures.

A medication applicator dispenses aerosol mist through a nostril for self-administration.

A locking mechanism transitions between secure and accessible states based on authentication inputs to control operational parameters.

Pneumatic peristaltic pumps replace mechanical gears with pressure-driven flexible occluders, reducing wear and maintenance costs.

A cap device secures a medicine cartridge and pierces its sealed end to establish a fluid flow path within an infusion pump system.

A compact piezoelectric pump generates negative pressure for wound therapy using voltage-actuated deformation elements.

Radially extendable stabilizing elements anchor an implantable injection port within tissue, eliminating suture trauma and reducing surgical time.

A controller modifies pulse frequency and duration using pressure sensor data to overcome subcutaneous absorption variability and improve glycemic control.

A vertical syringe stand and rotor-driven peristaltic pump deliver fluid by orienting the container upward to prioritize fat delivery.

A subcutaneous implant uses a septum and reservoir to enable delayed release of active ingredients.

A system synchronizes sensory stimulation with natural sleep slow waves using real-time EEG monitoring.

An intermediary cartridge with self-aligning lips and fasteners reduces setup time and manual errors during tubing installation in medical pumps.

A virtual reality system uses binaural beats and moving light to create immersive sensory stimuli.

Tangential air inlets drive movable balls in a dispersion chamber to deagglomerate powder, improving lung delivery efficiency while reducing device complexity.

Segmented plug dynamics eliminate recess molds, resolving high manufacturing costs and burr formation in dual chamber syringes.

A needle guide jig constrains syringe rotation to enable secure luer-lock attachment, preventing operator injury from high-viscosity resins.

A drug delivery needle cover with a variable radial profile reduces component count while maintaining usability for children.

Radial protrusions on the extension member engage the tubular element to maintain the extended position without complex manual operation.

Segmenting a dental zirconia blank into layers with distinct yttrium oxide content resolves the trade-off between high translucency and bending strength.

A vented dispensing device balances internal pressure using a selectively permeable membrane that permits gas transfer while blocking liquid water.

An infrared reflective label guides detection signals to confirm correct loading, eliminating magnet requirements and reducing false alarms.

Segmented hollow needle electrodes generate localized electric fields to treat deep tumors while protecting normal cells from damage.

Dual-arm guards shield hands and guide needles, preventing accidental punctures and container damage during IV filling.

A dynamic pressure response system manages airflow to clear fluid accumulation in drainage tubes.

A drug delivery drive unit employs a mechanical locking element secured by an electrically controlled release mechanism in a supplementary device.

A medical infusion delivery system uses interactive elements and circuitry to detect housing engagement.

A portable variable hyperoxia apparatus delivers humidified medicament and oxygen-enriched gas to treat skin disorders.

A pressure-actuated diaphragm switch regulates negative-pressure therapy by mechanically coupling conductors based on differential pressure.