Four-wing vaginal dilator

Abstract

The invention provides a four-wing vaginal dilator, which comprises an upper dilating sheet, a lower dilating sheet and a positioning sleeve, wherein the upper dilating sheet comprises an upper wing and a pressing handle which is integrated with the upper wing and extends backwards along the tail end of one side of the upper wing; the lower dilating sheet comprises a lower wing and a grab handle which is integrated with the lower wing and extends downwards from the rear end of the lower wing; the two sides of the rear ends of the upper wing and the lower wing are connected through a pin shaft;the pressing handle is meshed with the grab handle through a dilating positioning device; the positioning sleeve is rotationally connected with the rear end of the upper wing and a side dilating sheet respectively; and the four-wing vaginal dilator also comprises a first dilating positioning device consisting of a hook fastener dilating positioning self-destruction device, and a second dilating positioning device consisting of a second positioning hook which is arranged at the rear end of the side dilating sheet and is provided with a second handle and a second positioning buckle on the outerside of the positioning sleeve. The vaginal dilator has a simple structure, is convenient to operate and easy to manufacture, is economic and practical, and is safe and effective to use.

Description

technical field [0001] The invention relates to a vaginal dilator of obstetrics and gynecology medical equipment, in particular to a four-winged vaginal dilator. Background technique [0002] Vaginal dilator, referred to as dilator, also known as vaginal speculum, speculum, etc., is a commonly used inspection and surgical instrument in gynecology. Used to expose the inspection site or surgical site. Through literature search at home and abroad, the U.S. Patent Office has recorded a vaginal dilator with a spiral fixed structure invented by American JohnL.Marco in 1949. A double-winged vaginal dilator requires at least 12 parts for inspection, and at least 8 for operation type. The advantage is that the opening angle of the upper and lower wings is greater than 40 degrees during expansion, which can effectively expand the vagina, expose the cervix and posterior fornix, and facilitate inspection and surgery. However, there are many parts, the operation is cumbersome and time-co...

AI Technical Summary

Problems solved by technology

[0011] On the other hand, there are media reports that criminals recycle and reuse. For this reason, Chinese inventors Lin Jing and Zhang Xingxing first invented the "Self-destructing Disposable Sterile Vaginal Dilator" in 2004 (the patent name is Instant Destruction Painless) Noiseless disposable vaginal dilator, the patent authorization number is 200420116743.7), its principle is to realize the destruction by setting the "destroyable belt" on the non-stressed part of the dilator handle or handle, and breaking the "destroyable belt" after use. However, in practical applications, if the "destroyable belt" is deep, it will easily break during transportation, and if the "destroyable belt" is shallow, it will be difficult to break, etc.

Images