1. 西安交通大学第一附属医院 a. 肝胆外科；b. 精准外科与再生医学国家地方联合工程研究中心，陕西 西安 710061；
2. 西安交通大学 a. 宗濂书院；b. 启德书院，陕西 西安 710061
Experimental Study on Cystostomy Based on Magnetic Compression Technique in Animals
ZHANG Miaomiao1a,1b, MAO Jianqi2a, REN Yuxiang2a, REN Bingyi2a, GAI Jingci2b, ZHANG Hanzhi2b, LAN Ting2b,
WANG Yirui2b, LIU Peinan2b, SHI Aihua1a,1b, LV Yi1a,1b, YAN Xiaopeng1a,1b
1. a. Department of Hepatobiliary Surgery; b. National Local Joint Engineering Research Center for Precision Surgery &
Regenerative Medicine, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an Shaanxi 710061, China;
2. a. Zonglian College; b. Qide College, Xi’an Jiaotong University, Xi’an Shaanxi 710061, China
Abstract：Objective To investigate the feasibility of magnetic compression technique (MCT) for cystostomy. Methods The
daughter magnet (PM) and parent magnets (PM) for cystostomy were designed according to the principle of MCT and the anatomical
characteristics of the lower urethra of New Zealand rabbits. Six New Zealand rabbits were used as animal models. After intravenous
anesthesia, the DM was inserted into the bladder through the urethra, and the PM was placed outside the abdominal wall above the
symphysis pubis. The DM and PM can be automatically attracted. The general conditions of rabbits after operation were closely
observed and the expulsion time of magnets was recorded. The rabbit was euthanized after the magnet fell off to obtain the fistula
specimen and observe the formation of cystostomy by naked eye. Results Cystostomy by MCT was successfully performed in
6 rabbits. The DM was successfully inserted into the bladder under the guidance of the guide wire. Then the DM and PM were
automatically aligned and attracted well. Ten to thirteen days after surgery, the DM and PM fell off and the cystostomy was
established. Laparotomy showed that the adhesion between bladder and abdominal wall was well healed, and no obvious adhesion
was found in pelvic cavity. The specimen of fistula was observed by naked eye, which showed that the bladder and abdominal wall
adhered and healed closely and the fistula had good patency. Conclusion Cystostomy based on MCT has the advantages of simple
operation, small trauma and good fistula formation, which is expected to be used in clinic.
张苗苗1a,1b，冒健骐2a，任宇翔2a，任炳屹2a，盖敬慈2b，张涵芷2b，
蓝婷2b，王伊睿2b，刘培楠2b，史爱华1b，吕毅1a,1b，严小鹏1a,1b. 基于磁压榨技术的膀胱造瘘动物实验研究[J]. 中国医疗设备, 2022, 37(6): 12-14.
ZHANG Miaomiao1a,1b, MAO Jianqi2a, REN Yuxiang2a, REN Bingyi2a, GAI Jingci2b, ZHANG Hanzhi2b, LAN Ting2b,
WANG Yirui2b, LIU Peinan2b, SHI Aihua1a,1b, LV Yi1a,1b, YAN Xiaopeng1a,1b. Experimental Study on Cystostomy Based on Magnetic Compression Technique in Animals. China Medical Devices, 2022, 37(6): 12-14.
