Dewaxing device of tissue embedding machine

Abstract

The invention provides a dewaxing device of a tissue embedding machine; the dewaxing device is capable of continuously discharging wax, and comprises a main dewaxing cylinder and an auxiliary dewaxing cylinder, wherein the auxiliary dewaxing cylinder is provided with a first heating device; the bottom of the main dewaxing cylinder is provided with a wax outlet pipe; a wax conveying pipe is arranged between the main dewaxing cylinder and the auxiliary dewaxing cylinder; the auxiliary dewaxing cylinder is provided with a wax feeding hole and an air inlet; the auxiliary dewaxing cylinder is hermetically arranged; a second heating device is arranged at the pipe orifice of the wax outlet pipe. The dewaxing device of the tissue embedding machine has the beneficial effects that the auxiliary dewaxing cylinder can be used for providing standby wax for the main dewaxing cylinder in time, so that the liquid paraffin wax is continuously supplied without waiting; the heating device arranged at the pipe orifice of the wax outlet pipe can be used for separately heating paraffin wax at the pipe orifice, so that the paraffin wax is prevented from being cooled and hardened, the wax is smooth in flow, and wax blockage is avoided; the wax conveying pipe is controlled to convey the liquid paraffin wax by enabling the air inlet to be filled with high-pressure air, and a control valve is not arranged in the wax conveying pipe, so that wax leakage is avoided.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a wax melting device for a tissue embedding machine. Background technique [0002] Tissue embedding machine is a device for embedding human or animal or plant specimens in tissue wax blocks after dehydration and wax soaking for histological diagnosis or research after sectioning. An important process of inspection. When making slices or ultra-thin slices, it is difficult to make slices with uniform thickness due to the soft texture of the tissue or local uneven hardness. Therefore, some special substances must be used to soak the inside of the tissue to harden the whole tissue and wrap the tissue to play a supporting role, and then use a microtome to make slices. Paraffin embedding is to inject molten paraffin into the embedding tray first, then use tweezers to take out the paraffin-soaked tissue block from the dehydration box, put it in the center of the embedding ...

AI Technical Summary

Problems solved by technology

[0003] 1. The continuity of the embedding work cannot be guaranteed

Due to the slow heat conduction of paraffin and the limited volume of the wax-melting tank of the tissue embedding machine, the paraffin melted in the wax-melting tank often runs out during the embedding process, and the added paraffin must wait for several hours to melt, resulting in the embedding process. The burying work was forced to be interrupted; the nozzle of the wax outlet pipe did not reach the melting temperature of the paraffin, which made the paraffin harden and backlog, blocking the nozzle of the wax outlet pipe

[0004] 2. The separation effect of paraffin and impurities is not good

The single-melting wax tank melts the paraffin in one tank, and the impurities in the paraffin cannot be separated from the liquid paraffin, and are embedded in the tissue together with the paraffin, resulting in a decline in the embedding quality; or only set up a filter at the wax outlet net, so that the liquid with a fast flow rate impacts the filter screen for a long time and easily causes the problem of damage to the filter screen

[0005] In order to overcome the above defects, it is often necessary to purchase additional wax melters or incubators to ensure the supply of spare paraffin, but this greatly increases the cost

Images