Method for conducting hepatic portal venous puncture and catheterization repeatedly

Abstract

The invention discloses a method for conducting hepatic portal venous puncture and catheterization repeatedly. The method for conducting hepatic portal venous puncture and catheterization repeatedly comprises the steps that (1) somatostatin is injected through the intravenous drip half an hour before puncture, so that the portal venous pressure is lowered; (2) hepatic portal venous puncture and catheterization are conducted under the guidance of the B ultrasound, a central venous catheter is left in the portal vein after the puncture is conducted successfully, portal venous blood is drawn back, and the central venous catheter is closed through heparin normal saline; (3) portal vein blood drawing detection is conducted multiple times; (4) after blood drawing detection, somatostatin is injected through the intravenous drip half an hour before catheter removal, so that the portal venous pressure is lowered, the 16G central venous catheter is removed from the portal vein and is transferred into the liver parenchyma according to the distance, between a portal venous puncture point and the skin, measured through the B ultrasound, the 16G central venous catheter is pulled out directly twelve hours later, a puncture channel is closed by means of thrombi formed in the liver, and then operation is ended. The method for conducting hepatic portal venous puncture and catheterization repeatedly has the advantages that the process is simple, operation is easy, the risk is small, and hepatic portal venous puncture and catheterization can be conducted repeatedly.

Description

technical field [0001] The invention belongs to the field of medical technology, and relates to a method for repeatable hepatic portal vein puncture and placement. Background technique [0002] In recent years, with the improvement of the safety and effectiveness requirements of feed, oral medicine and food, it is imminent to adjust the formula of feed, medicine and food reasonably. At present, the detection of animal oral absorption of feed, medicine, and food can only be speculated by drawing blood from the peripheral vein of the animal, and the formulation of feed, medicine, and food should be adjusted accordingly according to the guessed results, and the liver’s response to carbohydrates cannot be determined. , protein, nucleic acid and other absorption and metabolism factors are accurately calculated. [0003] Existing methods for drawing blood from the liver portal vein in living animals or people usually use the method of blocking the liver puncture tract with emboli...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a method for repeatable hepatic portal vein puncture and catheterization, which solves the existing method of drawing blood from the liver portal vein in living animals or humans, and mostly adopts the method of blocking the liver puncture tract with embolism after drawing blood from the liver portal vein Hemostasis, a poorly reproducible, risky, and expensive problem