Expansion mechanism and expander

A technology of expansion piece and linkage mechanism, applied in medical science, surgery, diagnosis, etc., can solve the problems of affecting observation, patient discomfort, poor observation field, etc., and achieve the effect of large opening angle and easy observation.

Pending Publication Date: 2022-03-08
HANGZHOU WEIXIN MEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among them, the lower wing is integrated with the handle, in other words, the opening angle of the lower wing is fixed, so the position of the lower wing and the visual mechanism installed on the handle is relatively fixed, causing the visual field of the visual mechanism to be biased downward The direction of the wings, resulting in poor observation field of view, affecting observation, if you want to adjust, it will also cause discomfort to patients

Method used

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  • Expansion mechanism and expander
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  • Expansion mechanism and expander

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Embodiment Construction

[0029] A number of embodiments of the present invention will be disclosed in the following figures. For the sake of clarity, many practical details will be described together in the following description. It should be understood, however, that these practical details should not be used to limit the invention. That is, in some embodiments of the invention, these practical details are not necessary. In addition, for the sake of simplifying the drawings, some well-known and commonly used structures and components will be shown in a simple schematic manner in the drawings.

[0030] In addition, in the present invention, descriptions such as "first", "second" and so on are used for description purposes only, and do not refer to the meaning of order or sequence, nor are they used to limit the present invention, but are only for the purpose of distinguishing the following The components or operations described by the same technical terms are only used, but should not be understood a...

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PUM

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Abstract

The expansion mechanism comprises a bearing part, a first expansion part and a second expansion part, and the first expansion part and the second expansion part are both rotationally connected to the bearing part; the second expansion piece is connected to the first expansion piece through a first linkage mechanism, and the first expansion piece is driven to rotate to drive the second expansion piece to rotate. The second dilation piece in the dilation mechanism is connected to the first dilation piece through the first linkage mechanism, when the first dilation piece is driven to turn over, the second dilation piece can be driven to turn over synchronously, the opening angle is larger, the view cannot be blocked, and a doctor can observe conveniently.

Description

technical field [0001] The invention relates to the technical field of gynecological examination instruments, in particular to an expansion mechanism and a dilator. Background technique [0002] Dilators are commonly used medical devices for checking gynecological diseases, and duckbill-shaped vaginal dilators are more commonly used. The dilator includes basic structures such as a handle and upper and lower wings, and the dilator can be opened by pressing the upper wing. Among them, the lower wing is integrated with the handle, in other words, the opening angle of the lower wing is fixed, so the position of the lower wing and the visual mechanism installed on the handle is relatively fixed, causing the visual field of the visual mechanism to be biased downward The direction of the wing will cause poor observation field of view and affect the observation. If it is adjusted, it will also cause discomfort to the patient. Contents of the invention [0003] Aiming at the defi...

Claims

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Application Information

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IPC IPC(8): A61B1/32A61B1/303
CPCA61B1/32A61B1/303
Inventor 张洋魏信鑫熊斌
Owner HANGZHOU WEIXIN MEDICAL TECH CO LTD
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