Self-retraction puncture core

Abstract

The invention relates to a self-retraction puncture core.The puncture core comprises a puncture casing and a puncture body arranged inside the puncture casing, the head end of the puncture body is provided with a puncture tip, the tail end of the puncture body is connected with a puncture operation handle, the puncture tip of the head of the puncture body can penetrate from the head end of the puncture casing, and the puncture operation handle is located at the tail end of the puncture casing;when the puncture tip of the puncture body penetrates from the head end of the puncture casing, the puncture body is pressed through the puncture operation handle to carry out the necessary puncture operation by utilizingthe puncturetip;at the same time when the puncture tip punches through the puncture area, relative movements between the puncture casing and the puncture body are conducted, so that the puncture tip of the puncture body can immediately enter the puncture casing, and the puncture tip of the puncture body can be stably maintained in the puncture casing after the puncture tip is punched into the puncture casing. The self-retraction puncture core has the advantages of compact structure, can meet the needs of puncture, and can achieve protection after the puncture;the puncture core is convenient to operate, and safe and reliable.

Description

technical field [0001] The invention relates to a puncture core, in particular to a self-retracting puncture core, which belongs to the technical field of medical devices. Background technique [0002] In abdominal examination, abdominal surgery and other minimally invasive or surgical operations, trocar is an indispensable surgical instrument. The puncture device can establish an access channel in the abdominal wall of the human body, so that the laparoscope or other surgical instruments (such as endoscopes, scissors, staplers, guide wires, catheters, filters, stents, etc.) Channels to control the pneumoperitoneum required for surgery for examination or surgical manipulation. At the beginning of a minimally invasive laparoscopic medical operation, the doctor generally makes a small incision in the patient's abdomen, then aligns the apex of the puncture end with the small incision to puncture the abdominal wall forcefully, and fills the abdominal cavity with carbon dioxide ...

AI Technical Summary

Problems solved by technology

At the moment of puncturing the abdominal wall, due to the force of inertia, it is very difficult for the surgeon to stop. If you are not careful, the sharp puncture head will penetrate too deep into the abdominal cavity, resulting in intestinal rupture, even bloo

Images