Tissue expansion fixator for mouse portal intravenous injection

• Main Authors: GUO XIAOPENG, ZENG ZHUANGLIN, DU GAOHUI, WANG ZHIWEN, GUO YISHAN, LI SONGHAI, LI WEIJUAN, ZHANG QING, WEI YUMIAO, CAO BINGXIN, ZHANG FAN, ZHOU WENPING
• Format: Patent
• Language: Chinese; English
• Published: 28.01.2022
• Subjects: HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; VETERINARY INSTRUMENTS, IMPLEMENTS, TOOLS, OR METHODS

The invention relates to a tissue expansion fixator for mouse portal intravenous injection. The tissue expansion fixator comprises a base and a vertical supporting rod. A transverse supporting rod is arranged at the top of the vertical supporting rod. A telescopic rod is arranged on the transverse supporting rod in a sliding mode. The top end of the telescopic rod is connected with a pressure adjusting rod parallel to the vertical supporting rod. A mounting box is arranged on the pressure adjusting rod, a fixed expansion block and a movable expansion block are arranged on the mounting box side by side, and flexible barb layers are arranged at the bottoms of the fixed expansion block and the movable expansion block. The portal vein puncture port can be kept exposed after mouse portal vein injection, the portal vein is prevented from being covered by mesentery again after injection is completed, compression hemostasis can be conveniently and accurately conducted, and experimental animals are prevented from dyin