CN111358797A - 犬用静脉输注复方麻醉剂 - Google Patents

犬用静脉输注复方麻醉剂 Download PDF

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CN111358797A
CN111358797A CN202010182119.0A CN202010182119A CN111358797A CN 111358797 A CN111358797 A CN 111358797A CN 202010182119 A CN202010182119 A CN 202010182119A CN 111358797 A CN111358797 A CN 111358797A
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何小华
赵丹
邵华荣
张岱州
马玉奎
黄艳妮
郑晓霞
刘纯
房绍英
孙淑萌
韩磊
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Abstract

犬用静脉输注复方麻醉剂,用于麻醉犬。其组分为:每100ml注射液中含有1mL速眠新Ⅱ注射液合剂(100mg/mL)、舒泰500mg(盐酸替来他明125mg,盐酸唑拉西泮125mg),余量是生理盐水;配制该复方麻醉剂的方法是将所述的500mg舒泰采用其自带的10mL灭菌注射用水初步溶解后,将其倒入已灭菌的蓝口瓶中,与1mL速眠新Ⅱ注射液合剂(100mg/mL)混合均匀,再加入89mL生理盐水,获得复方麻醉剂。利用速眠新Ⅱ注射液合剂和舒泰复合作用,使其有效药物成分能迅速到达犬的中枢神经效应部位,麻醉维持时间长,肌松、镇静、镇痛效果好,苏醒平稳、制备方法简单。

Description

犬用静脉输注复方麻醉剂
技术领域
本发明属于兽药制备技术领域,主要涉及一种犬用静脉输注复方麻醉剂。
背景技术
比格犬(Beagle Dog)是国际通用的标准化实验用犬,在药理学、毒理学、外科学、微生物学等多个领域有广泛的应用。然而比格犬做为医学实验动物模型,其不能耐受外科手术强烈的疼痛刺激,经常出现挣扎、骚动等反应,手术的预后效果较差,因此对比格犬安全有效的麻醉是进行科研项目必须解决的难题。
目前,动物临床麻醉发展趋势是复合麻醉,也就是多种药物联合应用,不但可以较好的控制麻醉深度,满足手术的需要,还可以减少单种药物的用量,减少药物蓄积,减轻药物浓度过大导致的副作用,比如静脉输注复合麻醉剂等。与其他给药途径相比,静脉麻醉具有操作方便、诱导快给药剂量准确、效果确切的优点。因此,针对各种静脉麻醉药物的作用特点,配制复合制剂是当前麻醉临床发展的主要趋势,这样不仅能避免单一药物使用剂量过大、毒副作用大,而且能达到麻醉诱导平稳快速、维持时间适宜、苏醒较快,安全有效的麻醉效果。
舒泰是一种新型分离麻醉剂,它含有镇静剂替来他明和肌松剂唑拉西泮,并以这两种麻醉剂按照1:1的比例混合而成。其中替来他明作用时间长,镇痛效果强,它的作用机制是阻断了丘脑向新皮层的投射及皮层前额大脑的联系路径,选择性的阻断了痛觉神经的传导,使脑干网状结构和边缘系统兴奋,边缘叶出现觉醒波但不影响脊髓丘脑束的传导,从而造成意识模糊但痛觉消失的状态。唑拉西泮是一种苯二氮卓类药物,有肌松、镇静和抗惊厥作用。将替来他明和唑拉西泮合用可以加强麻醉时对中枢神经系统的抑制作用,同时也可防止替来他明的副作用惊厥现象,缩短麻醉苏醒时间并增强肌肉松弛的效果。
速眠新Ⅱ又称846合剂,主要成分是盐酸赛拉嗪,该制剂具有良好的镇静镇痛和肌松效果,药物分子进入中枢神经系统神经细胞膜的脂质层后,与蛋白质分子的疏水部分结合从而要乱双层脂质分子的排列,改变膜蛋白的结构及受体、钠钾离子通道的功能,进而阻断神经冲动的传递达到对中枢神经的广泛抑制,使动物达到全身麻醉、意识丧失、感觉及反射消失,骨骼肌松弛的状态。
舒泰和速眠新是临床的常用麻醉药,但是单独使用其中一种进行麻醉犬时,都有不尽如人意的地方。舒泰静脉注射的诱导速度快,但是维持时间短;速眠新维持麻醉时间较长,但是诱导速到较慢。故本专利结合舒泰和速眠新的优缺点,将舒泰和速眠新复合使用并观察麻醉效果,为临床用药提供一定的依据。
发明内容
本发明的目的是:提供一种犬用静脉输注复合麻醉剂,本麻醉剂应用在犬的麻醉保定时,麻醉确实、稳定、安全、麻醉维持时间长,随着手术时间延长可进行多次追加剂量。
本发明的技术方案是:犬用静脉输注复合麻醉剂,其特征在于:每100mL注射液中含有0.8-1.1mL速眠新Ⅱ注射液合剂(100mg/mL)、舒泰400-550mg,余量是生理盐水。
本发明技术方案的优选值为:每100mL注射液中含有1mL速眠新Ⅱ注射液合剂(100mg/mL)、舒泰500mg,余量是注射用水。
制备犬用静脉输注复合麻醉剂的方法是:将所述的舒泰采用其自带的10mL注射用水初步溶解后,将其倒入已灭菌的蓝口瓶中,与1mL速眠新Ⅱ注射液合剂(100mg/mL)混合均匀,再加入89mL生理盐水,获得复方麻醉剂。
本发明犬用静脉输注复合麻醉剂中各组份的药理特性如下:
速眠新Ⅱ注射液合剂,市售成药,是由氟哌啶醇、保定宁、双氢埃托啡等药物制成的复方制剂,具有广泛的镇痛、制动确实、诱导和苏醒平稳等特点,是一种良好的手术麻醉药。但是其单独用于犬的麻醉,可明显抑制犬的呼吸并常使犬出现强直性痉挛,有时甚至在麻醉后的两天都有痉挛的现象发生。
舒泰,市售成药,是一种分离麻醉剂,冻干粉为白色粉末状,它由镇静剂替来他明和肌松剂唑拉西泮组合而成(两药物比例为1:1),其成分中替来他明与氯胺酮属于同一类药物,具有相同的药理作用,在全麻时,舒泰能够保证诱导时间短、极小的副作用和最大的安全性。肌注和静脉给药均可,其麻醉维持时间与给药剂量呈正相关。
所述的生理盐水使用医用灭菌生理盐水。
本发明犬用静脉输注复合麻醉剂的使用方法:测比格犬体重,静脉注射本发明麻醉剂0.5mL/kg。
本发明的优点是:利用速眠新Ⅱ注射液和舒泰的镇静及麻醉作用,进行复合组方,通过静脉注射后其有效成分能迅速到达犬的中枢神经效应部位,产生全身麻醉效果,临床麻醉效果观察试验结果证实,本发明麻醉剂具有麻醉诱导迅速,麻醉维持时间长,镇静效果良好,苏醒平稳等优点,并且该复方麻醉剂配制方法简单。该复方麻醉剂对犬的主要生理指标影响均在其生理耐受范围内,并且可随着手术时间延长进行多次追加剂量,不会造成动物死亡,因此可用于犬耗时较长的外科手术中。
具体实施方式
实施例一:将250mg舒泰采用其自带的5mL注射用水初步溶解后,将其倒入已灭菌的蓝口瓶中,与0.5mL速眠新注射液合剂(100mg/mL)混合均匀,再加入44.5mL生理盐水,获得瓶装犬用静脉输注复合麻醉剂的1号成品。
实施例二:将275mg舒泰采用其自带的5mL注射用水初步溶解后,将其倒入已灭菌的蓝口瓶中,与0.55mL速眠新注射液合剂(100mg/mL)混合均匀,再加入44.5mL生理盐水,获得瓶装犬用静脉输注复合麻醉剂的2号成品。
实施例三:将200mg舒泰采用其自带的5mL注射用水初步溶解后,将其倒入已灭菌的蓝口瓶中,与0.4mL速眠新注射液合剂(100mg/mL)混合均匀,再加入44.6mL生理盐水,获得瓶装犬用静脉输注复合麻醉剂的3号成品。
应用实例一:使用实施例一获得的1号成品麻醉剂,按所述使用方法给药,给药剂量为0.5mL/kg,麻醉监测结果表明,注药后1分钟,比格犬进入麻醉状态,麻醉可维持约50分钟,苏醒时间为5分钟;全程比格犬麻醉确实,诱导迅速,维持时间较长,苏醒平稳。
应用实例二:2019年12月,在山东省药学科学院药理研究部手术室对12条比格犬进行开颅手术,使用实施例二获得的2号成品麻醉剂对比格犬进行了麻醉,为了保障充足的时间以完成手术操作,按所述使用方法给药,选择给药剂量为0.6mL/kg。给药后1分钟,12条比格犬均进入麻醉状态,实施手术操作,因手术过程的电刀分离肌肉与颅骨时,疼痛敏感强度大,麻醉维持约40分钟,再用该复合麻醉剂维持(0.1~0.2mL/kg),手术期间密切观察犬的意识状态,术后12条比格犬均平稳苏醒,未出现死亡现象,顺利完成手术。
应用实例三:2019年12月,对上述12条比格犬应用了实施例三获得的3号成品麻醉剂,进行术后CT检查,按所述使用方法给药,给药剂量为0.5mL/kg。给药后1分钟,全部比格犬进入麻醉状态,在CT检查过程中比格犬没出现疼痛性挣扎现象,顺利完成CT检查,且CT检查后,12条比格犬均苏醒平稳,其后生理活动正常。
应用实例四:2019年12月,应用实施例二获得的2号成品麻醉剂对12条比格犬实施安乐死,静脉给药剂量为1.5mL/kg。给药后5分钟,全部比格犬的心跳停止,确认死亡。

Claims (3)

1.犬用静脉输注复合麻醉剂,其特征在于:每100mL注射液中含有1mL速眠新Ⅱ注射液合剂(100mg/mL)、舒泰400-550mg,余量是注射用水。
2.根据权利要求1所述的犬用静脉输注复合麻醉剂,其特征在于:每100mL注射液中含有1mL速眠新Ⅱ注射液合剂(100mg/mL)、舒泰500mg,余量是生理盐水。
3.制备权利要求1或2所述犬用静脉输注复合麻醉剂的方法:将速眠新Ⅱ注射液合剂、舒泰依次倒入已灭菌的蓝口瓶中,颠倒数次、混匀,再加入生理盐水,获得犬用静脉输注复合麻醉剂成品。
CN202010182119.0A 2020-03-16 2020-03-16 犬用静脉输注复方麻醉剂 Withdrawn CN111358797A (zh)

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CN112870201A (zh) * 2021-02-01 2021-06-01 西北农林科技大学 一种猫用复方麻醉剂及制备方法和应用
CN114601839A (zh) * 2022-03-31 2022-06-10 北京大学第三医院(北京大学第三临床医学院) 一种用于大小鼠的复合麻醉药物及其制备方法与应用
CN115414323A (zh) * 2022-08-25 2022-12-02 遵义医科大学 一种实验猪的全身麻醉方法

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