Traction and knotting device of puncture-free cannula minimally invasive laparoscope

Abstract

The invention provides a puncture-free cannula minimally invasive laparoscope traction knotting device, and the knotting device comprises a pointed-end puncture cylinder, a blunt-end visceral organ protection rod, a rotating handle and an absorbable silk thread traction knotting ring; the blunt-end visceral organ protection rod is inserted into the pointed-end puncture cylinder, the rotating handle is rotationally installed at the tail end of the pointed-end puncture cylinder, and is used for driving the blunt-end viscera protection rod to move relative to the pointed-end puncture cylinder; a groove is formed in the head end of the blunt-end viscera protection rod, a rotatable thread fixing structure is installed in the groove, and the absorbable thread traction knotting ring can be installed on the thread fixing structure and connected with a traction thread; and the tail end of the traction silk thread penetrates through the hollow cavity of the blunt-end visceral organ protection rod and then is exposed. The puncture point tissue trauma is tiny, suture is not needed, and use is convenient.

Description

technical field [0001] The invention relates to the technical field of medical appliances, in particular to a puncture-free cannula micro-trauma laparoscopic pulling and knotting device. Background technique [0002] In the existing laparoscopic abdominal surgery, a 5mm or 10mm trocar puncture is required to assist in the operation. If intra-abdominal traction and knotting are inconvenient, additional skin incision and puncture are required to increase the number of puncture incisions. Moreover, the existing abdominal puncture points all have large wounds, which need to be sutured, leaving ugly surgical scars after healing. In patients with scar constitution, the incision scar hyperplasia will seriously affect the appearance of the wound, which will cause physical and mental distress to the patient. [0003] Authorized notification number CN106333718B discloses a puncture-free cannula micro-trauma laparoscopic pulling and knotting device and its use method to solve the above...

AI Technical Summary

Problems solved by technology

[0004] However, this solution still has the following deficiencies: the absorbable silk thread is used to pull the knotted ring, which can be used to pull or tie the tissue according to the needs of the operation. Since the knotted ring itself is soft, it is difficult to tie the knotted ring after it is inserted into the human tissue. It is easily deformed by the influence of tissue, resulting in a smaller opening diameter, which will affect the success rate and efficiency of knotting

Using a fixed protection rod spring to drive the blunt viscera protection rod to intervene in human tissue may be subject to tissue with greater resistance, thus affecting the operation of the blunt viscera protection rod popping out of the puncture cylinder

What's more, when the knot is finished, it needs to be cut off by the fixed end of the drawing thread, which will result in a longer drawing thread left in the human tissue. Although the drawing thread is soluble and absorbable relative to human tissue, it is still a problem if the thread is longer. It has a certain influence on the shape (view) and recovery of the puncture site

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