Guide Needles TRIZ Cases
- Needle Guard Resilient Arm and Elongate Member Containment
A needle guard uses a resilient arm and elongate member to fully retract the distal tip of the needle.
- Segmented Host Catheter for Multi-Depth Micro-Catheter Implantation
Segmenting the host catheter allows independent insertion of multiple micro-catheters at different orientations, reducing invasiveness and infection risk.
- Percutaneous Delivery System Balloon Anchoring
Segmented anchoring and advancing balloons prevent tissue perforation while navigating complex inguinal canals.
- Rolling Sleeve Catheter Eliminates Lubricant Friction
A catheter with a rolling sleeve everts over the outer surface to minimize kinetic friction during insertion.
- Safety Catheter Tip Protector Segmented Inner Outer Member Design
Segmented tip protector isolates hub engagement forces from the needle shaft using an axially shiftable inner member, preventing scraping damage.
- Malleable Guide Rail Actuation for Balloon Dilation
A guide rail actuation assembly drives longitudinal movement of a malleable guide rail within a dilation catheter.
- Constant Pressure Syringe Driver for Safe Infusion
A constant pressure syringe driver delivers infusion fluid using a calibrated disposable set with a matched variable flow rate controller.
- Repositioning Sheath for Mechanical Circulatory Support
Nested repositioning sheath slides through introducer to reduce vessel trauma and improve perfusion.
- Magnetic Catheter Needle Assembly Friction Reduction
A catheter needle assembly uses magnetic repulsion to reduce friction during withdrawal.