Detachable aspirator for otological surgery

Abstract

The invention relates to a detachable aspirator for an otological surgery. The detachable aspirator comprises a handle (1) and an aspirator head (2), an aspirator straight pipe (3) is arranged on the aspirator head (2), a handle head is bent by 40 degrees relative to a handle body, an inner thread (1.1) and an inner cone surface (1.2) are arranged in the front of the handle head, an outer thread (2.1) and an outer cone surface (2.2) are arranged in the rear of the aspirator head (2), the inner thread (1.1) and the outer thread (2.1) are M7 triple threads, thread pitch is 3mm, thread depth is 0.4mm, number of turns is 1.3, the front end diameters of the inner cone surface (1.2) and the outer cone surface (2.2) are 5.4mm, the rear end diameters of the inner cone surface (1.2) and the outer cone surface (2.2) are 5mm, the lengths of the inner cone surface (1.2) and the outer cone surface (2.2) are 4mm, the length of the aspirator straight pipe (3) is 80mm, the diameter of the aspirator straight pipe (3) is 0.5mm, 0.8mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm or 5mm, the wall thickness of the pipe is 0.1mm when the diameter of the pipe is 0.5mm, the wall thickness of the pipe is 0.15mm when the diameter of the pipe is 0.5mm and 1mm or 1.5mm, the wall thickness of the pipe is 0.2mm when the diameter of the pipe is 2mm or 2.5mm, the wall thickness of the pipe is 0.3mm when the diameter of the pipe is 3mm, 3.5mm and 4mm or 4.5mm, and the wall thickness of the pipe is 0.35mm when the diameter of the pipe is 5mm. According to the aspirator, energy consumption is saved, operation of a doctor is facilitated, and surgical efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of medical instruments, and relates to an aspirator for ear surgery, in particular to a detachable aspirator for ear surgery. Background technique [0002] Ear microsurgery is an open operation under a microscope. In order to avoid the operator's hand and the handle of the suction device from blocking the field of view, the suction device used in ear surgery is mostly a curved conjoined structure, or a curved tube body with a straight handle split structure, and a Multiple sets of suction devices of different specifications are required for single-stage surgery. At the same time, a large amount of bone powder will be produced during ear microsurgery. In order to prevent the bone powder from flying and cool down the electric drill and grinding head, it is necessary to continuously infuse liquid. In order to ensure the clarity of the surgical field, the injected liquid needs to be sucked clean at any time. Th...

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Problems solved by technology

[0003] In this way, since one operation needs to be equipped with multiple sets of suction devices of different specifications, the energy consumption is increased.

At the same time, because the liquid is mixed with bone powder, it is easy to block the bending part of the suction device, and when the suction device is less than 1.5mm blocked, the metal wire cleaning rod is too thin and too soft to pass through the bending part, and the dredging efficiency is low, which affects the operation progress; while using a syringe for water pressure impact, the dredging efficiency is low, which increases the invalid operation time

Furthermore, since the aspirators of different specifications need to be replaced frequently during the operation, each replacement needs to be unplugged and plugged with the negative pressure tube, which is inconvenient to replace and increases the time for ineffective operations

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