Adjustable biopsy puncture needle special for rectal tumor

Abstract

The invention provides an adjustable biopsy puncture needle special for rectal tumor. The adjustable biopsy puncture needle comprises a shell (1), a spiral rotating head (2), a button (3), a puncture needle (4), a rotating connecting assembly (5), a puncture needle moving assembly (6) and a spiral rotating assembly (7). The puncture needle (4) and the puncture needle moving assembly (6) are arranged in the shell (1). The spiral rotating head (2) is arranged at the tail of the near end of the shell (1), the rotating connecting assembly (5) is arranged in the spiral rotating head (2) and controls the puncture needle (4) to be screwed out; and the button (3) is arranged at the tail end of the spiral rotating head (2) and controls the puncture needle (4) to retract. By adopting the design of multi-gear positioning puncture, the length of the puncture needle entering tumor is controllable, the defects and complexity of manual sampling are overcome, and the use method is simple.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to an adjustable biopsy puncture needle dedicated to rectal tumors. Background technique [0002] The pliers heads of the existing tumor biopsy sampling forceps adopt the opening and closing method to grasp the tumor tissue. However, some tumor tissues, especially rectal tumors, are often not on the surface of the tissue, but hidden inside the healthy tissue, or grow on the surface of the tissue. The surface of hidden tissue corners is relatively smooth and hard. In addition, the head of the traditional tumor biopsy sampling forceps is round and blunt, which cannot directly and effectively grasp the tumor tissue, which brings great inconvenience to clinical biopsy. Contents of the invention [0003] In order to achieve the above object, the specific technical solutions provided by the invention are as follows: [0004] An adjustable biopsy puncture needle for rectal tumors, charact...

AI Technical Summary

Problems solved by technology

[0002] The pliers heads of the existing tumor biopsy sampling forceps adopt the opening and closing method to grasp the tumor tissue. However, some tumor tissues, especially rectal tumors, are often not on the surface of the tissue, but hidden inside the healthy tissue, or grow on the surface of the tissue. The hidden corners of the tissue are relatively smooth and hard. In addition, the head of the traditional tumor biopsy sampling forceps is round and blunt, which cannot directly and effectively grasp the tumor tissue, which brings great inconvenience to clinical biopsy.

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