第四百四十二章 全麻的人,我怎么知道他要晕了?

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    格雷特的手很稳。
    他的心也很安静。
    20ml的注射器,吸满生理盐水,稳稳插入断端肱动脉的血管腔中。右手食指、中指夹持针筒,拇指按住活塞头部,缓缓向前推注。
    在前世,血管冲洗用的注射针头,应该是平头的,以免损伤血管内膜。奈何,格雷特先前做针头的时候,没想到这一茬。
    所有针头都是斜口的!让金币现做、现消毒,又来不及了!断肢移植,需要争分夺秒,才能让损伤降到最低的程度……
    他也只能用自己稳定的操作,让针头与血管纵轴方向始终平行,避免尖锐的针头插进血管内壁。然后,缓慢、平稳地推注液体,让生理盐水沿着血管腔进入动脉,顺着血管的通路,汩汩向前。
    不能快,也不能慢。太快了,水柱打在血管腔内膜上,会损伤极其娇嫩的内膜;太慢了,生理盐水无法到达肢体末端,再沿着静脉回流。
    肢体已经离断,没有心脏搏动、没有动脉收缩,只有针筒推注给予的压力,才能让生理盐水在血管里向前。必须达到末端,才能冲洗掉组织里蓄积的代谢产物和凝血块,扩张痉挛、关闭的小血管和毛细血管网。
    前世,他没有做过断肢再植,也没有做过器官移植。推注速度怎样才算合宜,他只有按照自己的估算,一点一点试探着来。嗯,首先,注入时没有压力,说明附近没有凝血块,还好……
    一管生理盐水注入,再吸一管,继续注入。格雷特一边冲洗,一边嘀嘀咕咕:
    “唉,要是有个泵就好了……用注射器冲洗,总是不能保证压力均匀稳定……这里应该用肝素生理盐水的……”
    “肝素?”银龙少女忽然插话。她和格雷特一模一样,拉了个漂浮碟做凳子,凑在边上旁观。听到格雷特嘀咕,立刻询问:
    “肝素是什么?是不是用肝榨出来的?”
    “听到了吧!”手术台后面几步,布罗克长老声音洪亮,羽冠簌簌震动:
    “治疗者大人需要肝脏!谁去弄一块肝来!要新鲜的!”
    他压力沉重的目光下,立刻有人就地转身,飞奔而出。格雷特大汗:
    “别!”
    肝素虽然是,嗯,从肝脏发现的,可并不是说你们拿块肝脏来榨个汁,就能榨出肝素来的!
    不管是普通肝素,还是低分子肝素,生产过程都相当复杂精密!你们给我一块肝,我也不会拿来用的!
    再说,现在的肝素,主要从牛肺或猪小肠黏膜提取,没有肝脏什么事儿……
    奔出去的长老紧急刹车。赛瑞拉坐在手术台远端,通过秘法眼盯着断肢创面,小声问:
    “那怎么办?”
    “不怎么办,没有就没有呗……”
    格雷特隔着口罩闷闷地回答。说到底,生理盐水冲洗,是用物理方法移除血栓;而肝素的运用,是防止血液再度凝结。
    嗯,只要他接续血管的时候速度够快,治疗术扔得够多,就不怕血栓!
    “格雷特,这些红的、蓝的、黄的是什么啊?”
    “啊,是我标记的血管和神经……红的是动脉,蓝的是静脉,黄的是神经……”
    “所以待会儿,就是红的接红的,蓝的接蓝的,黄的接黄的,对吗?”
    “没错。大致就是这样……”
    格雷特凝视着断肢创面,小声给她解释。法师伎俩真是太方便了,如果是在前世,清创的时候要用丝线扎在上面做标记。都不说操作难度,血管和神经,那有多么脆弱啊,扎一下肯定有物理损伤!
    避难小屋后方,聚集听课的长老们吁一口气,感激得快要跪下来拜。
    精灵小姐,您真是太善解人意了!您这一问,治疗者大人随口一句回答,省了我们多少研究工夫啊!嗯,回头接完断臂,一定要给她送礼!多多送礼!
    格雷特小声回答,仔细操作,尽量维持动作的稳定。看见被染红的冲洗液汩汩流出,他才微微松了口气:
    嗯,骨髓腔开始流出冲洗液了,很好;
    头静脉,贵要静脉,肱静脉,都有冲洗液流出,说明生理盐水已经到达肢体末端,顺着毛细血管网回流;
    这三个小点儿之前标记过,应该是桡侧副动脉、中副动脉和尺侧上副动脉,也都有冲洗液流出,棒棒的!
    当然,有些地方,也确实有青紫和肿胀,毕竟在豹子嘴里叼过一遭。格雷特能清理的就清理,清理不了的,也只能暂时随他去。
    血管冲洗完毕,评估一下情况,转向悬着条断臂,一直颤巍巍旁观的赛维:
    “躺上去,我要开始接了!”
    赛维脸色一白。虽然已经有了心理准备,可真的躺平了被人动刀子,感觉还是相当惊悚。尤其是,给他躺的不是桌子,而是三个连在一起的圆盘,滑溜溜,半透明,按一下还会动……
    形势比人强。自己部落的长老连使眼色,一群施
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