Endoscopic injection needle is mainly divided into two categories, namely upper gastrointestinal injection needle and lower alimentary canal injection needle. The difference between these two types is mainly in length, and there is not much difference in other parameters of the needle. But now also have the company points out that the use of upper gastrointestinal tract (upper) and the lower digestive tract with (colonoscopy) injection needle besides length difference, in the outer sheath of the needle tube hardness also have difference.

    The gastroscope is soft and the enteroscopy is hard. This kind of design is because the gastroscope operation is similar to the big Angle bending operation such as the stomach bottom to turn the operation is more, the soft injection needle is easy to pass, and does not have too much influence on the curvature of the frame. While the operation of the intestinal tract is generally relatively small, and the length is far away, it needs the relatively rigid outer sheath tube to meet the requirements.

    The diameter of the needle point (needle core). According to different treatment requirements, select different diameter endoscopic injection needle. For EMR, ESD and EIS (intravascular injection of ordinary liquid cushion, or drugs, because the viscosity is not large, with a diameter of 25-22 g endoscopic needle (0.5 0.7 mm) in diameter, and the injection of drugs needed for organizations such as plastic injection with high viscosity, need to use more thick needle diameter, for 21 g (1.0 mm) in diameter.

    According to the characteristics of the tissue glue injection, a company has developed a double-channel needle, at the same time of injection of tissue adhesive, another channel to flush and spraying, prevent tissue glue in local congestion.

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The type of endoscopic injection needle