The performance of the guide wire is generally judged from these aspects:

Maneuverability is also called torsional control: refers to the ability to transmit torque from the proximal end of the guidewire to the tip of the guidewire (the goal is 1:1 conduction), which is the ability to control the head of the guidewire to move forward in the blood vessels or towards the target direction in the lesion when manipulating the end of the guidewire.
Flexibility: The ability of the guidewire itself to change with the degree of vascular curvature is affected by the design, structure and material of the guidewire head. Good flexibility reduces damage to blood vessels
Visibility: local highlight development of the guide wire, conducive to the positioning of the guide wire, the guide wire head can be seen under perspective is a necessary condition for safe operation, in order to increase the development effect, the head end can be added platinum ring.
Smoothness: related to the surface coating of the guidewire, reducing friction. The lubrication effect of hydrophilic coating is relatively good, and various PU coated guide wires, spring guide wires can be coated with hydrophilic coatings. Hydrophobic PTFE (Teflon) also has a certain lubricating effect and is commonly found in various zebra guidewires.
Traceability: the ability to guide the wire to walk along the anatomy of the vessel, that is, the ability of the guide wire to conform to the shape, turn or bend of the blood vessel, and less often twist and twist itself in the process of pushing and forward.
Support force: The ability of the guidewire to resist vertical forces without bending, for example, the ability of the guidewire to overcome resistance when it acts as a conveying track for balloons and scaffolds. The size of the supporting force is mainly related to the hardness, diameter and material of the guide wire.
Haptic feedback: refers to the operator's perception of the activity of the guidewire head, which can help the surgeon operate safely, adjust the head end in time, and avoid complications such as vascular perforation and dissection. Haptic feedback is related to the head design and sheath nature of the guidewire, and the coil sheath allows the operator to obtain good head haptic feedback.