Background

We examined compliance differences among balloon remodeling microcatheters, which have not been established previously.

Methods

Straight and 120° angulated vascular models were created in a 3 mm diameter tube with 3 mm hole (vascular model A), a tube with a 4 mm hole (vascular model B), and a 4 mm diameter tube (vascular model C). We compared the pressure exerted when each balloon was herniated 1 or 2 mm between three compliant balloons (SHOURYU SR, TransForm C, and Scepter C) and four super-compliant balloons (HyperForm, SHOURYU HR, TransForm SC, and Scepter XC).

Results

In vascular model A, there was a significant difference in the pressure exerted by compliant balloons and super-compliant balloons in both the straight and angulated models. In the straight model (1 and 2 mm), the lowest pressure was exerted by HyperForm (super-compliant balloons group) and SHOURYU SR (compliant balloons group). The lowest pressure was exerted in the angulated model by HyperForm (super-compliant balloons group) and Scepter C (compliant balloons group). The Scepter balloon exerted higher pressure in the straight model than other balloon remodeling microcatheters but less in the angulated model. In vascular model B, the pressure decreased in all balloons compared with model A. In vascular model C, the pressure increased in all balloons compared with model A.

Conclusions

Pressure differed across balloon remodeling microcatheters. In addition, vessel shape and diameter, and hole size, affected the results. Our findings can help select balloon remodeling microcatheters.

中文翻译：

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在实验模型中评估不同类型的球囊重塑微导管对血管壁施加的压力差异

背景

我们检查了球囊重塑微导管之间的依从性差异，这些差异以前尚未确定。

方法

在具有 3 毫米孔的 3 毫米直径管（血管模型 A）、具有 4 毫米孔的管（血管模型 B）和直径 4 毫米的管（血管模型 C）中创建直的和 120° 成角度的血管模型。我们比较了三个顺应性球囊（SHOURYU SR、TransForm C 和 Scepter C）和四个超级顺应性球囊（HyperForm、SHOURYU HR、TransForm SC 和 Scepter XC）之间每个球囊突出 1 或 2 mm 时施加的压力。

结果

在血管模型 A 中，顺应性球囊和超顺应性球囊在直模型和成角度模型中施加的压力存在显着差异。在直模型（1 和 2 毫米）中，HyperForm（超级顺应性球囊组）和 SHOURYU SR（顺应性球囊组）施加的压力最低。HyperForm（超级兼容气球组）和 Scepter C（兼容气球组）在成角度模型中施加的压力最低。与其他球囊重塑微导管相比，Sceptre 球囊在直模型中施加的压力更高，但在成角度模型中施加的压力较小。在血管模型 B 中，与模型 A 相比，所有球囊的压力均降低。在血管模型 C 中，与模型 A 相比，所有球囊的压力均升高。

结论

球囊重塑微导管的压力不同。此外，血管形状和直径以及孔的大小也会影响结果。我们的发现可以帮助选择球囊重塑微导管。