Vivas Luiz Alfredo de Magalhães, Jamel Nelson, Refinetti Ricardo Antonio, Silva Luis Felipe da, Rodrigues Lígia Villela, Silva Paulo Cesar, Schanaider Alberto
Department of Surgery, FM, UFRJ, Brazil.
Acta Cir Bras. 2007 May-Jun;22(3):229-33. doi: 10.1590/s0102-86502007000300012.
The difficulty to anesthetize small laboratory animals with vaporizer prompted us to go in search of new materials, and create new techniques. The improved equipment of anesthesia we looked for should be low cost, practical, versatile, and its management serve ethical, teaching, and research purposes.
The new components of the equipment were: the vaporizer, the unidirectional valve, the glass cylinder filled with water, the flow guidance y-shape tube, the flow regulators, the mask modifications, and another free airway for emergency occurrence. A test was done with 30 Wistar rats, Rattus norvegicus albinus, divided into three groups with 10 rats for each one. Groups 1, 2 and 3 were anesthetized with Ether, Halothane and Sevoflurane respectively, using the new gadget. The anesthetic induction time, the breathing rhythm alteration during an anesthesia pre-established time (10 minutes), and the recovery time were observed.
The equipment enabled an easy handling, and fulfilled a larger safeness and stability during the induction and anesthetic management. The test showed it was possible to make use of several anesthetic agents.
The device is effective, and turns the anesthesia procedure into a very easy practice with low-cost. It should be recommended for experimental surgery, teaching and research.
用蒸发器麻醉小型实验动物存在困难，这促使我们寻找新材料并创造新技术。我们所寻求的改进型麻醉设备应成本低廉、实用、多功能，且其操作应服务于伦理、教学和研究目的。
该设备的新组件包括：蒸发器、单向阀、装有水的玻璃圆筒、导流Y形管、流量调节器、面罩改进装置以及另一个用于紧急情况的气道。对30只Wistar大鼠（白化挪威大鼠）进行了测试，将其分为三组，每组10只。分别使用新装置用乙醚、氟烷和七氟醚对第1、2和3组进行麻醉。观察麻醉诱导时间、在预先设定的麻醉时间（10分钟）内呼吸节律的改变以及恢复时间。
该设备操作简便，在诱导和麻醉管理过程中具有更高的安全性和稳定性。测试表明可以使用多种麻醉剂。
该装置有效，使麻醉过程成为一种低成本且非常简便的操作。推荐用于实验手术、教学和研究。
