Guide Needles TRIZ Cases
- IV Catheter Advancement Mechanism with Guide Wheel
A guide wheel advances a guidewire through an intravenous catheter housing, enabling one-handed advancement while maintaining blood flash visibility.
- Temperature-Compensated In-Vivo Sensor Assembly
Integrated sensor sheath measures body fluid temperature to compensate for thermal fluctuations affecting enzyme-based analyte readings.
- Reperfusion Catheter Antegrade Flow Control
An introducer sheath and balloon catheter establish artificial antegrade blood flow to prevent non-target embolization during embolization procedures.
- Catheter with Slit and Movable Sheath for Guide Wire Alignment
A catheter main body with a slit and tapered portion allows elastic deformation within a movable sheath to align a guide wire along the longitudinal axis.
- Endobronchial Ablation Catheter with Sealed Guide and Suction
Segmented bronchial isolation with suction removes air pressure to prevent pneumothorax during endobronchial ablation.
- Aspiration Catheter Slant Cut Tip for Restricted Vessel Navigation
An aspiration catheter uses a slant cut tip to create a curved shape and non-circular opening, improving clot removal in restricted neurovascular spaces.
- Transvenous Pacing Catheter with Shape-Memory Leads for AV Synchrony
A transvenous intracardiac pacing catheter uses shape-memory nitinol leads to expand and contact heart tissue securely.
- Self-dilating Catheter Introducer with Obturator
A self-dilating catheter introducer expands radially via an obturator to accommodate varying French scale sizes.
- Stiffness-Varying IV Needle with Temperature Sensing
A stiffness-varying intravenous needle converts from rigid to soft form at body temperature using a shape memory alloy.
- Split Sheath Dilator for Subcutaneous Implantation
A split sheath dilator creates a subcutaneous pocket and guides an implantable device antenna into position.
- Catheter Shape Retainer for Kink Prevention
A catheter shape retainer prevents kinking in cerebral infarction treatments by maintaining the device position during puncture removal.
- Cannulation System With Needle Retraction For Safety
A coaxial cannula and needle assembly retracts the sharp element into a protective enclosure after use.
- Multi-Diameter Catheter With Inner Sliding Segment
An inner sliding segment replaces the clogged distal portion of a peripheral intravenous catheter, extending device lifespan and reducing vein trauma.
- Introducer Sheath Crosslinked Polymer Sleeve and Radiopaque Marker
A crosslinked polymer sleeve protects the radiopaque marker from oxidation while ensuring a flush transition to reduce tissue snagging.