The invention discloses a reflux proof device of a transfusion device, which belongs to the field of medical equipment technology, including sealing parts located in the bottom of the dripping bucket, the sealing member from top to bottom are sequentially communicated straight through pipe, sealing cavity and bend pipe, the pipe bend is transverse \S\ tube, pipe and bend the opening at the lower end of the transfusion hose connected; the straight pipe and curved pipe of the upper opening are respectively provided with a floating ball and a floating ball two and a ball float and float two through a connecting rod fixed together, wherein the floating ball two are fixed at the lower end of length less than two at the top of the floating ball to the positioning rod between the sealing cavity at the top of the distance; the connecting rod near the bottom of the floating ball two is provided with a supporting claw, the claw is supported between the upper and lower ends of the horizontal distance is greater than the surface of the connecting rod and the straight through the distance between the tube wall. The invention has three mechanisms for stabilizing the liquid level of the liquid in the dropping bucket. In normal application, the pressure of the liquid column is always greater than that of the blood pressure, and effectively prevents blood reflux.
【技术实现步骤摘要】
一种输液器防回流装置
本专利技术涉及医用设备
,具体的涉及一种输液器防回流装置。
技术介绍
输液器是一种极为常见的医疗耗材,建立静脉与药液之间的通道,用于静脉输液。一般由静脉针、注射针或输液针,针头护帽,输液软管,药液过滤器,调节阀,滴斗,瓶塞穿刺器、空气过滤器等部分连接组成,部分输液器还有注射件,加药口等。滴斗的上下端口分别连接上输液软管和下输液软管,输液器在输液过程中,先待滴斗内的药液液位稳定,再进行输液,此时液柱压与静脉中血压的差值一定(大气压相互平衡,液柱压大于静脉血压),使得药液匀速输入血管中;当药瓶中的药液输完后,滴斗内的药液液位开始下降,液柱压开始减小,当液柱压等于静脉血压时,若未及时采取措施,极易发生血液回流状况,所以当液柱压等于静脉血压之前,要及时止液(暂停输液),使液位稳定。在输液器的正常应用状态下,滴斗的底部所在高度对应的液柱压一定是大于静脉血压的。目前,实际生活中普遍应用的还是一般的输液器,其不具备防回流装置。
技术实现思路
1.要解决的技术问题本专利技术要解决的技术问题在于提供一种输液器防回流装置,其具有三个使药液液位稳定在滴斗内的机构 ...
【技术保护点】
一种输液器防回流装置,其特征在于,所述装置设于滴斗(1)内,包括位于滴斗(1)底部的密封部件(4),且所述密封部件(4)的侧面及底部与滴斗(1)内壁紧密贴合,所述密封部件(4)上表面与滴斗(1)内壁之间形成滴液腔(13);所述密封部件(4)内从上到下设有依次连通的直道通管(5)、密封腔(6)及弯道通管(7),所述直道通管(5)上端开口位于密封部件(4)上表面,所述弯道通管(7)为横置的“S”形管,且弯道通管(7)下端开口连通下输液软管(3);所述直道通管(5)和弯道通管(7)的上端开口处分别设有浮球一(8)和浮球二(10),且浮球一(8)和浮球二(10)之间通过连接杆(9) ...
【技术特征摘要】
1.一种输液器防回流装置,其特征在于,所述装置设于滴斗(1)内,包括位于滴斗(1)底部的密封部件(4),且所述密封部件(4)的侧面及底部与滴斗(1)内壁紧密贴合,所述密封部件(4)上表面与滴斗(1)内壁之间形成滴液腔(13);所述密封部件(4)内从上到下设有依次连通的直道通管(5)、密封腔(6)及弯道通管(7),所述直道通管(5)上端开口位于密封部件(4)上表面,所述弯道通管(7)为横置的“S”形管,且弯道通管(7)下端开口连通下输液软管(3);所述直道通管(5)和弯道通管(7)的上端开口处分别设有浮球一(8)和浮球二(10),且浮球一(8)和浮球二(10)之间通过连接杆(9)固定在一起,所述连接杆(9)置于直道通管(5)内,且连接杆(9)的直径小于直道通管(5)的管径,所述浮球二(10)下端固定有定位杆(11),所述定位杆(11)的直径小于弯道通管(7)的管径,定位杆(11)的长度不小于浮球二(10)顶部...
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