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.