Self-destruction four-wing speculum

Abstract

The invention provides a self-destruction four-wing speculum. The self-destruction four-wing speculum comprises an upper expansion piece, a lower expansion piece, at least one side expansion piece anda positioning sleeve, wherein the upper expansion piece and the lower expansion piece are rotationally connected and positioned through an expansion positioning device, and the positioning sleeve isrotationally connected with the upper expansion piece and the side expansion pieces; and the self-destruction four-wing speculum further comprises a first expansion positioning device composed of a hook buckle expansion positioning self-destruction device, and a second expansion positioning device which is formed by meshing a second positioning hook with a second handle on the side expansion pieceand second positioning buckles above the two ends of the positioning sleeve. The self-destruction four-wing speculum is simple in structure, convenient to operate, easy to manufacture, economical, practical and safe and effective to use

Description

technical field [0001] The invention relates to a vagina dilator of obstetrics and gynecology medical equipment, in particular to a self-destructing four-wing speculum. 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 ...

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Problems solved by technology

[0014] On the other hand, there are media reports that criminals recycle and reuse. For this reason, Mr. Lin Jing and Mr. Zhang Xingxing first invented the "Self-destructing Disposable Aseptic Vaginal Dilator" in 2004 (the patent name is Instant Destruction Painless Noise Disposable Vaginal Dilator, the patent authorization number is 200420116743.7), its principle is to set the "destroyable belt" on the non-stressed part of the handle or handle of the dilator, and break the "destroyable belt" after use to realize the shape destruction , to achieve the purpose of not being able to be used again. However, in practical applications, if the "destroyable belt" is too deep, it will easily break during transportation, and if the "destroyable belt" is shallow, it will be difficult to break and other defects. Therefore, further research on vaginal dilators is needed. Overcome defects and make it better and more complete

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