Anal dilator

Abstract

The invention discloses an anal dilator. The anal dilator comprises a fixing base, a guide part, an expanding sleeve, a screw rod, a rotary knob and a plurality of steel wires. The fixing base is a hollow cylinder, the guide part is in a cambered spherical crown shape, the expanding sleeve is elastic and is connected with the fixing base and the guide part, a through hole is formed in the position, far away from the end of the expanding sleeve, of the fixing base, and a nut is fixedly connected to the outer side of the end of the fixing base. One end of the screw rod is provided with the rotary knob, the other end of the screw rod is connected with a threaded hole in a threaded mode, penetrates through the through hole and stretches into the fixing base, one end of each steel wire is fixed to the guide part, the other end of each steel wire is fixed to the end of the screw rod, at least one viewing port is formed in the side wall of the fixing base, an axial hollow pipeline is arranged in the screw rod, and a luminescent lamp is arranged on the position, corresponding to the viewing port, of the screw rod. The rotary knob is provided with a switch and a button cell, the button cell is arranged on the inner side of the joint of the rotary knob and the screw rod, the switch is arranged on the outer side of the rotary knob, and a resistor is arranged in the hollow pipeline. By means of the anal dilator, stepless regulation can be conducted on the expanding range, and the anal dilator is convenient for a doctor to operate.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to an anal dilator. Background technique [0002] At present, the medical dilator is an indispensable instrument for anorectal examination. The expansion part of the existing anal dilator is generally composed of multiple expansion blades. The blades are put into the anorectum when they are closed, and the lever of the handle is used to force the multi-expansion blades during inspection. Since the locking position of the lever generally has only one gear, the doctor cannot grasp a suitable force. Small ones are not necessarily suitable for patient examination; at the same time, the force of the lever is often too large, which will cause damage to the anorectal inner wall when the expansion blades are stretched, so the existing anal dilators have obvious deficiencies. Contents of the invention [0003] The technical problem mainly solved by the present invention is to provide an...

AI Technical Summary

Problems solved by technology

[0002] At present, the medical dilator is an indispensable instrument for anorectal examination. The expansion part of the existing anal dilator is generally composed of multiple expansion blades. The blades are put into the anorectum when they are closed, and the lever of the handle is used to force the multi-expansion blades during inspection. Since the locking position of the lever generally has only one gear, the doctor cannot grasp a suitable force. Small ones are not necessarily suitable for patient examination; at the same time, the force of the lever is often too large, which will cause damage to the inner wall of the anorectum when the expansion blades are stretched, so the existing anal dilators have obvious shortcomings

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