Hook part structure for eye speculum

Abstract

The invention discloses a hook structure for an eyelid speculum, comprising a hook, the hook is fixedly connected with a connecting rod through a drainage tube, the connecting rod has a hollow inner cavity structure, one end of the connecting rod is fixedly connected with a clip arm, and the clip arm has a hollow Inner cavity structure, the hollow inner cavity of the clamping arm communicates with the hollow inner cavity of the connecting rod, and the clamping arm delivers liquid to the hook through the connecting rod. By changing the structure of the traditional eyelid speculum, a structure that can be dripped with liquid is set on the eyelid speculum, thereby overcoming the problem that the traditional eyelid speculum has a single function and cannot simultaneously achieve eye moistening. At the same time, by changing the existing thermoplastic polyurethane The formula and preparation method of the rubber overcome the problems of greater skin irritation and lower flexural strength of traditional thermoplastic polyurethane rubber. The tensile strength of the thermoplastic polyurethane rubber produced by it can reach 29MPa, and the flexural strength can reach 14.3MPa , anti-aging is not higher than 9%, has good comprehensive mechanical properties.

Description

Technical field [0001] The invention relates to the field of eye surgical instruments, in particular to a hook structure for eyelid openers. Background technique [0002] The eyelid opener is a special medical device for ophthalmology in hospitals. It is used to expand the eyelids (the two pieces of tissue above and below the eye when the eyelids are). Most of them are used for eye surgery. Its function is to expand the doctor's surgical field of vision. Generally, the eyelid opener is a screw-type twisting eyelid opener. The operation method is: hook the eyelid with the hook of the eyelid opener, then screw in the screw, and turn the two ends of the eyelid opener (ie the clamping arm of the application) outward Diffusion, the eyelids are expanded. It can be seen that the traditional eyelid opener needs to be operated with both hands, that is, one hand needs to hold the eyelid opener to stabilize its position, and the other hand needs to rotate the screw to expand the eyelids. T...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to solve the above-mentioned problems and provide a hook structure for eyelid speculum. By changing the structure of the traditional eyelid speculum, a structure that can drip liquid is provided on the eyelid speculum, thus overcoming the problem of traditional eyelid speculum. The function of the eyelid is too single, and the problem of moistening the eyes cannot be realized at the same time. At the same time, the present invention also provides a thermoplastic polyurethane rubber for the hook part. Existing problems of greater skin irritation and lower bending strength

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