Infusion Needles TRIZ Cases
- Needle Removal and Storage for Complete Holder Separation
A grasping and heating approach fully separates needles from holders, reducing needle-stick risk and allowing holder recycling.
- Safety Syringe Sheath Deployment Linked to Plunger Stroke
A plunger-triggered sheath deploys at a release point to cover the needle automatically, reducing needle exposure and blood splatter.
- Needle Shield Locking Mechanism for Trigger-Free Stick Prevention
A pivoting shield locks over the needle after use, avoiding a separate trigger step while staying compact for sterile syringe packaging.
- Needle Guard Housing with Rotational Unlock to Prevent Accidental Locking
A slit-and-protrusion housing lets the needle guard rotate to unlock, preventing premature locking while preserving safe reuse after user error.
- Safety Needle Assembly for Single-Handed Retraction and Flushing
A slidable needle and engaging hub enable single-handed removal, positive flushing, and reduced blood backflow during vascular access.
- Sliding Needle Shield With Elastic Return and Plunger Release
An elastic return construct replaces complex spring mechanisms so a sliding shield locks open during injection and automatically covers the needle after use.
- Needle Obscuring Sleeve Mechanism for Lower Injection Anxiety
A movable sleeve obscuring element keeps the needle hidden before, during, and after injection to reduce anxiety and limit accidental exposure.
- Prefilled Syringe Injector With Retractable Needle Shield
A spring-biased retractable tube shields the syringe needle before and after manual injection, reducing needle fear and accidental stick risk.
- Resilient Tooth Gripper for Needle Shield Removal
Resilient teeth with offset planar tips ease needle shield insertion while increasing withdrawal resistance for secure, easier removal.
- Fixed-Dose Injection Mechanism With End-of-Content Lockout
A pre-strained torsion spring automates equal-dose delivery and blocks further use once the preset injection count is exhausted.
- Medicament Delivery Sub-Assembly With Automatic Needle Attachment
Axial guard movement drives adapter rotation to attach the delivery member automatically, simplifying sealed medicament delivery.
- Syringe Needle Shield With Deformable Tab and Stop Lock
A deformable tab, stop, and guide elements lock the syringe needle tube after use while avoiding assembly collisions and accidental release.