A versatile dual-channel carbon dioxide (CO2) insufflator for various CO2 applications -: The prototype
A versatile dual-channel carbon dioxide (CO2) insufflator for various CO2 applications -: The prototype
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DOI：
10.1007/s00464-005-0208-4
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发表时间：
2006-02-01
影响因子：
3.1
通讯作者：
Nishida, T
中科院分区：
文献类型：
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作者：
Nakajima, K;Yasumasa, K;Nishida, T
背景：二氧化碳(CO2)具有快速吸收的性质，在各种临床环境中已被证明是一种优于大气的充气剂。然而，CO2气腹尚未得到临床广泛接受，这主要是因为还没有合适的喂养系统。因此，作者开发了一种多功能的“双通道”二氧化碳注气器，便于更广泛地使用二氧化碳。本研究的目的是介绍作者设计的原型注气器，对其安全性和性能进行评估，并利用原型验证CO2的应用。方法：原型注气器的一个CO2入口连接到一个常规的CO2气瓶上，两个CO2出口分别位于装置的前面和后面。从钢瓶供给的CO气体是压力调节的，并被分成设备内部的两个独立的管道。前出口以电子控制的压力和流量为气腹提供二氧化碳气体。后通道以固定的流量提供二氧化碳气体，允许手动控制各种目的的注气。用犬模型对该装置进行评价。结果：样机安全可靠，性能良好。使用后通道进行CO2应用(本系列中的结肠镜检查)是可行的，同时通过前通道维持完整的CO2气腹。没有设备故障。连续腹部X线片显示，如用于CO2结肠镜检查的CO2腔内充气比常规空气充气产生的残余肠道气体更少。结论：双通道CO2充气器可以从一个CO2气瓶同时进行两种不同的CO2充气模式。作者现在正在改进原型，以便在手术室中更安全、更广泛地使用二氧化碳。
Background: Carbon dioxide (CO2), with its rapid absorptive nature, has been proven superior to atmospheric air as an insufflating agent in various clinical settings. However, CO2 insufflation has not gained wide clinical acceptance, mainly because there has been no suitable feeding system. The authors therefore have developed a versatile "dual-channel" CO2 insufflator that facilitates wider use of CO2. The objectives of this study were to introduce the authors' prototype insufflator, to evaluate its safety and performance, and to validate CO2 application using the prototype.Methods: The prototype insufflator provides one CO2 inlet connected to a regular CO2 gas cylinder and two CO2 outlets positioned on the front and back of the device, respectively. The CO, gas fed from the cylinder is pressure-regulated and divided into two independent conduits inside the device. The front outlet feeds CO2 gas for pneumoperitoneum at an electronically controlled pressure and flow rate. The back channel supplies CO2 gas at a fixed flow rate, allowing manual control of insufflation for various purposes. The device was evaluated with canine models.Results: The prototype was safe and performed well. The CO2 application (colonoscopy in this series) using the back channel was feasible while intact CO2 pneumoperitoneum was simultaneously maintained via the front channel. There were no device malfunctions. The serial abdominal x-rays indicated that intraluminal CO2 insufflation such as that used for CO2 colonoscopy caused less residual intestinal gas than conventional air insufflation.Conclusions: The dual-channel CO2 insufflator enabled two different modes of CO2 insufflation at the same time from a single CO2 cylinder. The authors are now improving the prototype to allow safer and wider usage of CO2 in the operating room.