Intravenous Devices TRIZ Cases

A transparent peel-and-place dressing uses a laminated manifold with standoffs to apply negative pressure.

An integral spindle and bearing unit minimizes assembly steps by using a severed web connection to enable rotation.

Packaging abutment sections engage medicament container features to secure the bung, preventing uncontrolled movement during transport.

Anatomical landmark templates on a pierceable model resolve visualization gaps in medical training, ensuring accurate needle placement.

Scanning radiopharmaceutical pigs for radioactivity before high-temperature disinfection removes residual contamination and biological hazards.

Hydrochromatic ink in opaque drainage bags detects bodily fluid presence through color changes.

An anti-backup mechanism prevents partially closed clips from falling into the surgical site by blocking handle return during partial pulls.

Segmented chambers separate new and used cannulas via a rotating drum, resolving sterility and capacity trade-offs.

A carbon nanotube heating element integrated into a syringe body maintains medical fluid temperature during injection procedures.

Vacuum-actuated suction tubes extend automatically to clear surgical smoke, eliminating manual slider adjustments that cause user fatigue.

Frangible members break during housing removal, exposing a visual indicator to detect unauthorized access and prevent re-attachment.

A compact pump extracts urine directly into a toilet via flexible tubes.

Decapping single-dose vials enables sterile extraction of multiple ranibizumab portions, reducing drug wastage from syringe dead space.

An annular ring member fixes a disc-shaped valve in a medical connector, preventing germ contamination from stepped surfaces.

A nasal spray device uses a spring-biased pusher and rotational actuation to deliver predetermined product doses.

An endovascular anastomotic connector uses expandable vascular and supply conduits to establish secure attachment within biological vessels.

Segmented connectors introduce secondary atmospheric pressure via vent lumens to prevent exudate stagnation at secondary wound sites.

A central venous catheter featuring a secondary port and clamp for backflushing the external lumen segment.

Segmenting the system into an annular frame and controller reduces perceived pain during hypodermic needle procedures.

Absorbent material swells within a fluid blockage device to seal reduced-pressure ports, preventing liquid contamination of therapy systems.

A dual-material bung uses a rigid core and compressible shell to adapt to cartridge walls while resisting axial compression.

Compressible porous cylinder releases lubricant onto barrel surface to resolve irregular spraying friction and ensure consistent plunger motion.

A suction control handle cover element regulates airflow by shielding the aeration hole from direct operator contact.

A compact implantable inflatable device integrates a fluid reservoir, inflatable member, and fluidics architecture within a single housing.

A syringe plunger uses an elastic piece with slide and lock projections to enable precise metered dispensing of content media.

A syringe assembly uses a frangible tether to secure the plunger and prevent unauthorized access.

A syringe piston incorporates a check valve seal to direct gas flow into an entrapment zone while maintaining fluid integrity.

A packaging nest distributes container loads via dual supporting surfaces, preventing flange breakage and contamination during stacking.

Segmented ports and a collapsing distal segment pull thrombus against the catheter, preventing embolization during removal.

Segmented plunger components enable selective attachment, reducing storage length while maintaining reliable connection integrity.

Multi-functional gripper arms process syringes and crimp caps sequentially, resolving container versatility limits without disturbing sterile airflow.

Segmented probe components eliminate contaminant trapping to ensure effective sterilization and reusability.

Nested valve assemblies engage ridges against posts to resist pulling forces and prevent unintended disconnection of medical lines.

Segmented packaging with shared sidewalls and barrier films eliminates random orientation, enabling deterministic robotic handling while maintaining sterility.

A dose setting mechanism uses a spring force to unlock the lead screw for reliable medicament delivery.

A medical tube clamp uses a central guide protrusion with sloping surfaces to align plate parts during compression.

A diverter valve clears blockages by directing flow to atmosphere, preventing fluid entry into pressure sensing lines during instillation.

Asymmetric thread flank angles strengthen piston engagement without increasing sliding resistance in small-capacity syringes.

Segmented fin-shaped seals manage air bubbles in pre-filled syringes, reducing actuation force while maintaining seal integrity.

Uncovered distal end surfaces enable bipolar coagulation in confined spaces where gripping surfaces cannot fully open.

A closure assembly with an indicator window and color-changing member provides visual evidence of tampering or use.

A plate displaces superficial eye layers to create a sealed pathway for needle insertion.

Flexible segmented barrel and plunger formations produce distinct audible and tactile signals during axial displacement.

Integrated thermoformed package merges holder, shield, and hub to lower manufacturing costs while preventing reuse.

Segmented reservoirs and control valves extend wound therapy duration to ten hours while reducing device weight and production costs.

Movable sleeve venting modulates vacuum pressure to eliminate peristaltic pump hysteresis and ensure reproducible tissue removal.

A syringe featuring a protective funnel and spring-loaded needle mechanism for secure handling.

Partitioned infusion connectors divide flow channels into in-flow and out-flow paths, reducing administration time for multiple attached lines.

Reducing the plunger rod head diameter ratio lowers radial outward stress, enabling smooth advancement and preserving seal quality.