Disposable sterile freeze-drying membrane disc and manufacturing method and application method thereof

Abstract

The invention discloses a disposable sterile freeze-drying membrane disc and a manufacturing method and application method thereof. The disposable sterile freeze-drying membrane disc comprises a sterile membrane and edge strips. Each edge strip is provided with an inner side face of a plane structure connected with the membrane, and reinforcing ribs are arranged on an outer side face of each edge strip. The length of each reinforcing strip is smaller than that of the corresponding edge strip. Inserting parts and containing parts matched with the inserting parts are arranged between the stop ends of the reinforcing ribs and the stop ends of the edge strips along the inner sides of the edge strips. The inserting parts and the containing parts are of a detachable buckle structure. The adjacent inserting parts and containing parts are buckled to form a quadrangular frame body, and a quadrangular enclosure frame capable of containing a solution is formed. A dual-layer bag is arranged on the outer portion of a whole formed by connecting the membrane and the edge strips, and irradiation sterilization is carried out, so that it is ensured that the requirement of the sterile process is met during use. The disposable sterile freeze-drying membrane disc can be completely in contact with a drying heat conduction plate; the heat exchange efficiency is high; the vacuum drying efficiency is improved; cleaning and sterilization are avoided; material losses are reduced; and no metal particle is generated.

Description

technical field [0001] The invention relates to a sterile film tray used to replace the stainless steel tray used for solution drying, which can be used in drying fields such as food and medicine, in particular to a disposable sterile freeze-dried film tray and its manufacturing and using methods. Background technique [0002] Drying is an important means of item preservation. Among them, vacuum drying and vacuum freeze drying technology are basically unchanged due to the appearance, color, fragrance, and active nutrients of the products produced, and the rehydration is rapid, the shelf life is long, and the transportation, storage, and consumption It is very convenient and is widely used in the fields of medicine, biological products, food, blood products and active substances. [0003] Vacuum drying and vacuum freeze drying are widely used due to their low drying temperature and high drying efficiency. However, its development is hindered because of its poor temperature t...

AI Technical Summary

Problems solved by technology

[0004] At present, the solution is freeze-dried, and most of them use stainless steel plates. Due to the small gap between the plate plane and the heating plate, the solution inside the stainless steel is different under the extremely high vacuum condition in the vacuum freeze-drying process. There is a huge difference in efficiency at the point of contact, which leads to poor consistency in the quality of the dry goods and greatly affects the efficiency

[0005] As for the clip-on membrane frame, there are also certain disadvantages: the clip-on membrane frame is welded into a frame shape with stainless steel side strips, and the membrane material is clamped on the stainless steel side strips with clips, which is troublesome to operate and takes a long time to operate.

[0008] If a plastic film is used for one-time molding, the tightness of the film material is poor, and it is extremely difficult to handle, and it is easy to spill when the solution is left

[0009] If the edge buckle method is used, in order to ensure that the solution does not leak, the processing and assembly requirements are very high, the production efficiency is low, and the cost is high

[0010] For a long time, stainless steel trays have been used as containers for vacuum drying of materials, but because the stainless steel trays cannot be flexibly and tightly connected with the drying heat transfer surface, the drying efficiency is particularly low when drying under vacuum conditions; and the stainless steel trays are very easy to operate Metal particles are produced by friction with the contact surface, and the surface of the tray is easily damaged during the powder extraction process, resulting in metal residues

[0011] Stainless steel has a high adhesion rate to dried items, and a low powder collection rate. Subsequent cleaning, recovery of liquid medicine, and sterilization are required, which wastes a lot of manpower and time. The probability of contamination increases during the transfer process, making the cleaning and disinfection process cumbersome, resulting in operating costs High; the stainless steel tray is very heavy, which makes the operation very inconvenient and requires a lot of physical exertion for the operator

[0012] The emergence of the above problems has brought a lot of inconvenience to the quality of vacuum drying and vacuum freeze drying materials and the operation of the production process.

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