弹簧栓子特征之一（Characteristics I）
• 丝径 caliber of wire
• 0.018 inch (micro-coils)
• 0.025; 0.035; 0.038 inch (macro-coils)
• 材料 material
• 白金 platinum (soft - softer) (micro-coils)
• 不锈钢 stainless steel (Inconel®, NiChromium superalloy MRI compatibility)
• 弹簧栓子表面涂层 Coil surface
• 裸- 纤毛bare - fibered
• 凝胶 hydrogel
弹簧栓子特征之二 characteristics II
• 释放后长度 最长50厘米 远端阻塞或段阻塞
length after deployment (max 50cm)(distal/segmental occlusion)
• 释放后扩展直径
expanded diameter (max 20mm) (vessel or lesion diameter)
• 弹簧栓子的构型 coil configuration
• straight, crescent, helical, complex.. 直型，月牙形，台风，复杂...
• tapering diameters (incremental diameter, 2D，3D)
弹簧栓子特征之三 characteristics III
• coil compatibility with 相容性
• (micro)guide wire (pusher) 微导丝
• (micro)catheter 微导管
• MRI 相容性
弹簧栓子特征之四
1. 电解
2. 水解 3. 机械解 
Coil pushers 弹簧栓子推送器
For 0.018 coils use specific coil pusher or microguide-wire
For 0.035 and 0.038 coils use straight, soft teflon coated or hydrophilic guidewires
理想的弹簧栓子
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