Uterine cavity expander

Abstract

The present invention discloses a uterine cavity expander. The uterine cavity expander comprises a fixing tube, an opening, an elastic sheet, a sliding groove and a driving tube; the fixing tube is provided with the opening along a length direction, through-holes are respectively formed in two sides of the opening along the length direction, two ends of the elastic sheet penetrate through the fixing tube through the through-holes respectively, and the driving tube is arranged in the sliding groove in a sliding mode and also connected with the two ends of the elastic sheet so as to drive the elastic sheet to slide in the through-holes. By arranging the elastic sheet in the fixing tube, the driving tube can drive the elastic sheet to move, the elastic sheet supports two sides under a self elastic action to expand uterine cavity, and at the same time, a hysteroscope can go deep into the uterine cavity through the opening to facilitate observation on operation processes. The device has a simple structure, is convenient to use, does not require a uterine cavity swelling medium, avoids complications of pulmonary edema or air embolism caused by perfusion fluid excessive absorption syndrome, and provides a safer surgical guarantee for patient surgery.

Description

technical field [0001] The invention relates to the technical field of medical auxiliary equipment, in particular, a uterine cavity dilator. Background technique [0002] Gynecological surgery requires the use of dilation of the uterine cavity in a wide range of fields, such as hysteroscopic uterine distension, intrauterine adhesion separation surgery, or the future can be truly realized under direct vision abortion, hysteroscopy, etc., the existing Dilation of the uterine cavity presents the following problems: [0003] 1. Traditional hysteroscopic uterine distension requires liquid medium or gas medium, and there are certain clinical complications, which are seriously life-threatening; [0004] 2. The current tumor-free principle of tumor resection has made laparoscopic tumor resection controversial. Hysteroscopy is well known. The uterine cavity, fallopian tubes and pelvic cavity are physiological channels, and the uterus is an organ with rich blood flow. Enter the abdo...

AI Technical Summary

Problems solved by technology

[0003] 1. Traditional hysteroscopic uterine distension requires liquid medium or gas medium, and there are certain clinical complications, which are seriously life-threatening;

[0004] 2. The current tumor-free principle of tumor resection has made laparoscopic tumor resection controversial. Hysteroscopy is well known. The uterine cavity, fallopian tubes and pelvic cavity are physiological channels, and the uterus is an organ with rich blood flow. Enter the abdominal cavity through the fallopian tube, or directly enter the systemic circulation through the pressure of uterine distension. In the same way, in the case of unknown uterine cavity cancer and endometrial cancer, it is very likely to cause cancer cells to spread far away through the uterine distension medium

[0005] 3. Abortion, visible abortion, and microtube visible abortion cannot remove the villi of the gestational sac under direct vision

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