Expansion structure and four-wing vaginal dilator

Abstract

The invention discloses an expansion structure, which comprises an upper expansion part, a lower expansion part, a limiting part and two side expansion parts. The upper expansion part and the lower expansion part are connected and can rotate relatively, the limiting part is arranged on the upper expansion part or the lower expansion part, the two side expansion parts are rotationally connected to the two opposite sides of the lower expansion part respectively, and in the relative expansion process of the upper expansion part and the lower expansion part, one ends of the two side expanding parts slide oppositely along the limiting part, the other ends of the two side expanding parts are opened oppositely, in the opening state, an inspection channel is formed among the upper expanding part, the lower expanding part and the two side expanding parts, and in the relative closing process of the upper expanding part and the lower expanding part, one ends of the two side expanding parts slide oppositely along the limiting part, and the other ends of the two side expansion pieces are relatively closed. The invention further discloses the four-wing vaginal dilator. In the process that the upper expanding part and the lower expanding part are relatively opened or closed, the two side expanding parts can be driven to be synchronously opened or closed through sliding fit of the limiting part and the two side expanding parts, the overall expanding structure is simple, and cost is low.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an expansion structure and a four-winged vaginal dilator. Background technique [0002] Vaginal dilators are commonly used medical devices for checking gynecological diseases. Most of the traditional duckbill-shaped vaginal dilators have a two-wing structure. In order to improve the dilating effect of the dilator without changing the doctor's usage habits, there have been dilators on the market that have improved the two-wing structure to a four-wing structure. Dilator, however, the expansion structure of the existing four-wing vaginal dilator is relatively complicated, and it is necessary to set up multiple linkage structures to realize the simultaneous expansion of the four wings of the dilator, which is difficult to operate and has high production costs. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the present invention provides an...

AI Technical Summary

Problems solved by technology

Most of the traditional duckbill-shaped vaginal dilators have a two-wing structure. In order to improve the dilating effect of the dilator without changing the doctor's usage habits, there have been dilators on the market that have improved the two-wing structure to a four-wing structure. Dilator, however, the expansion structure of the existing four-wing vaginal dilator is relatively complicated, and it is necessary to set up multiple linkage structures to realize the simultaneous expansion of the four wings of the dilator, which is difficult to operate and has high production costs

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