Medical Devices TRIZ Cases

Segmented oral and tracheal components prevent nasal trauma and gag reflex triggers during secretion removal.

A wearable device collects physiological data to determine user emotion states for automatic adjustment.

Segmented stem fingers create distributed flow passages that prevent kinking and maintain high fluid rates during secure catheter coupling.

Modular sections and a collapsible container reduce transport weight while the centrifugal pump maintains reliable suction during single-handed emergency use.

Negative pressure from a vacuum cup holds tissue against electrodes, resolving shallow field penetration and dislodgment issues in non-invasive treatments.

An RFID device attaches to a mold core holder before injection molding forms an elastomeric plunger seal.

Optical measurement system on operating rod replaces manual estimation to control needle penetration depth and improve pigment retention consistency.

A hollow body with tubular legs connects two surgically created orifices to create a sealed pathway for passive content transfer.

Malleable splint arms secure cannulas via an intermediary layer, preventing adhesive skin damage and circulation obstruction.

Oriented flow channels generate turbulence to disperse powder, preventing oropharyngeal deposition and improving lung delivery.

Optimizing the needle to hole diameter ratio creates turbulence that enables effective dry powder delivery at low patient flow rates.

Packaging line uses re-insertion station to recover usable pre-filled syringes after visual inspection, reducing product waste.

Deformable members in hyperbaric connectors provide visual pressure feedback to prevent overpressure and maintain capillary openness.

A height adjustable blood collection device dynamically alters flow rate using gravity to adapt donor physiology.

Collapsible expandable members allow the pump to navigate vascular access and then expand to support cardiac outflow without damaging valves.

Reciprocating chamber motion levels powder medicine for uniform filling, overcoming insufficient fill rates in static dispensing systems.

Anti-reflux member blocks nasal foreign bodies from entering the drainage tube while transmitting negative pressure to maintain suction efficiency.

A medical delivery system uses an actuator to deploy an expandable porous member that closes wounds via negative pressure, reducing surgical morbidity.

Hollow sphere valve structure eliminates internal rods to prevent microbial contamination and skin ulcers while improving fluid flow efficiency.

Protrusions within the side port redirect saline proximally to eliminate residual blood and medicament trapped by standard port angles.

An electrochemical sensor detects bioavailable drug concentrations using a specialized coating to partition active compounds.

Multi-layer adhesive and moisture indicator prevent water contact and skin irritation in catheter shields.

Micropores on the anti-reflux cup cover prevent nasal secretions from entering the air pump, protecting the device from blockages and damage.

A tubular braid folded back at the catheter tip contacts the inner layer to secure the reinforcing structure without external tools.

A miniature sensor uses segmented electrodes and a pH-sensitive coating to transduce electrical signals from bodily fluids.

A catheter uses an ethylene-tetrafluoroethylene outer layer and a polyamide inner layer to create differential bending loads between the tip and main body.

A container lid uses a female conical vacuum port to ensure correct adapter alignment.

A medical device substrate integrates a hydrophilic polymer blend to create a low-friction surface layer.

A catheter valve uses a bidirectional deformation part to open and close a slit for fluid flow.

Mounting a disposable pump module on the housing back side reduces the footprint of infusion devices in intensive care units.

An ultrasonic activating tip atomizes liquid therapeutic substances into aerosols, eliminating the need for bulky compressors and enabling true portability.

Nested ejection channels and side-mounted knobs enable single-handed clog clearing in surgical suction devices.

A continuous reinforced catheter shaft embeds coiled wire frames within a polymer liner to minimize outer diameter.

Tapered electrode terminal chambers direct viscoelastic fluid flow through a center path to enable precise Hall-effect electromagnetic sensing.

Segmented single-material sealing elements form interlocking protrusions to prevent water and dust ingress while eliminating expensive 2K molding costs.

A silicone rubber valve body features a silicon oxide surface layer that reduces guide wire sliding resistance.

Adjustable frequency settings modify plasma effluent properties, resolving the contradiction between versatile tissue treatment and device complexity.

Wing structures create vortex airflow patterns that deagglomerate powder for efficient delivery without complex mechanical components.

A therapeutic half-cell device transfers electrons to or from an organism via ionically conductive paths.

Pneumatic pressure drives contrast products through a flexible reservoir into the container, accelerating filling speed while preventing phase change.

A catheter system uses a removable healing dummy to block tissue ingrowth, enabling safe blood-brain barrier recovery before perfusion measurements.

A multi-lumen conduit interface abuts a distribution manifold to protect sensing lumens from occlusion by fluid splashing and foaming during wound therapy.

A cantilever gantry with a monocoque housing and single main bearing supports the beam nozzle.

Segmented outer cover and label tab provide enlarged gripping surfaces to simplify pen needle handling for users with limited dexterity.

A conveying device uses axial insertion to engage threaded members without rotation.

A plunger with a rounded tip pushes pellets through a curved needle passageway, preventing jamming at the distal opening.

A nasal delivery device uses a two-step compressed gas mechanism to entrain flowable substances for precise administration.

A nebulizer container integrates a control device and locking mechanism to block usage after a set number of doses.

A canister lid integrates a suction conduit to merge input and exhaust pathways into a single vacuum tube.