Laparoscopic venous blood taking needle

Abstract

The invention discloses a laparoscopic venous blood taking needle. The laparoscopic venous blood taking needle comprises a medical injector connector, a medical silica gel connecting tube and an operating handle. The laparoscopic venous blood taking needle is characterized in that a medical transparent protective sleeve tube with the upper end opened is arranged above the operating handle, a fixing ring is arranged in the lower end of the protective sleeve tube, and a hollow needle used for taking blood is further arranged in the protective sleeve tube; the upper end of the hollow needle is provided with a hook bending downwards, the hooked needle is arranged near the portion below an opening formed in the upper end of the protective sleeve tube, and the lower end of the hollow needle penetrates through the fixing ring at the lower end of the protective sleeve tube and then penetrates through the lower end of the operating handle to enable the distance between the operating handle and the protective sleeve tube to be 5 cm; the tail end of the portion, penetrating through the lower end of the operating handle, of the hollow needle is connected with one end of the medical silica gel connecting tube, and the other end of the medical silica gel connecting tube is connected with the medical injector connector. The laparoscopic venous blood taking needle has the advantages that the structure is simple, manufacture is easy, blood taking can be conducted on a vein blood vessel in the abdominal cavity of a patient through an endoscopy, blood taking is convenient and safe, and medical accidents are reduced.

Description

technical field [0001] The invention relates to a laparoscopic venous blood collection needle, which belongs to the technical field of medical instruments. Background technique [0002] Most of the human intra-abdominal diseases spread and transfer to other organs of the body through the abdominal vein. At present, a number of clinical studies at home and abroad have concluded that it is very useful to detect tumor markers and tumor cells by taking venous blood from the proximal end of the digestive tract tumor (such as the superior mesenteric vein, inferior vein, and portal vein, etc.) during abdominal surgery. High sensitivity and specificity have guiding significance for tumor prognosis and subsequent treatment. The traditional method of extracting intra-abdominal venous blood is that the surgeon directly punctures the patient's vein through an ordinary venous blood collection needle during laparotomy and draws blood. At present, laparoscopic surgery has been widely use...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a laparoscopic venous blood collection needle, which makes it more convenient, fast and accurate to take venous blood under the laparoscope, so as to overcome the difficulty of taking venous blood under the laparoscope at present, the operation is cumbersome, and it is easy to combine and damage the patient's venous blood vessels lack of

Images