一种新型开塞露容器的设计

The design of a new type of glycerine enema container

目的开塞露在临床使用时,存在易刺伤、逆流、残留量较多等问题。根据肛门直肠解剖结构及力学特性,设计一种新型开塞露容器,以减少肛管刺伤,提高开塞露溶剂利用率。方法新型开塞露容器包括容器塞、防刺球、导管、容器主体四部分。容器塞和防刺球采用葫芦形状的大小球组合;将导管管腔设计为Y字形,并在导管头端增加一个滚动小球;开塞露容器主体形状为燕尾状。通过Solid Works软件,进行容器各部参数赋值及仿真分析,生成模型。最后通过命令计算新型开塞露容器模型体积、长度、压强等,以此来计算开塞露容器的回流量及残留量,并与市售开塞露进行对比。结果新型开塞露的尖端压强为1.6 MPa,回流量为0.09 mL,残流量为2.5 mL,疼痛评分为1分,具有防刺伤、防逆流的作用。结论本文设计的新型开塞露具有明显优势,实用性更强,可以减少肛管刺伤,提高开塞露溶剂利用率。

Objective In clinical use,there are problems such as easy puncture,reflux,and high residual amount of glycerine enema.We design a new type of glycerine enema container based on the anatomical structure and mechanical properties of the rectum and anus to reduce anal canal injuries and improve the utilization rate of enema solvents.Methods The new type of glycerine enema container includes four parts:container plug,anti puncture ball,conduit,and container body.The container plug and anti stab ball are composed of gourd shaped balls of different sizes;Design the catheter lumen in a Y-shape and add a rolling ball at the catheter tip;The main shape of the container for opening the plug is a swallowtail shape.We use SolidWorks software,assign parameters to various parts of the container and perform simulation analysis to generate a model.Finally,the volume,length,pressure,and other parameters of the new type of glycerine enema container model are calculated through commands to determine the reflux and residual volume of the glycerine enema container,and compared with commercially available corkscrew containers.Results The tip pressure of the new type of glycerine enema is 1.6 MPa,the reflux rate is 0.09 mL,and the residual flow rate is 25 mL,pain score is 1,the new type of glycerine enema container has the effect of preventing stab wounds and reflux.Conclusions The new type of the glycerine enema container designed in this article has significant advantages,stronger practicality,can reduce anal canal injuries,and improve the solvent utilization rate of the enema.