Medical Sterilization Bag

Abstract

The present invention relates to an improved medical sterilization bag, comprising: a first thin layer, a second thin layer, an intermediate film layer, and a third thin layer, wherein the three edges of the second thin layer are attached to the three edges of the first thin layer for forming a bag structure with a first opening; a second opening is formed on the second thin layer. The intermediate film layer has a third opening attached to the surface of the second thin layer for covering the second opening; in addition, the size and the position of the third opening is relative and opposite to the second opening. The third thin layer is attached to the surface of the intermediate film layer for covering the third opening, wherein the third thin layer are tightly pasted with the intermediate film layer and can not to be ripped out from the intermediate film layer easily, but the intermediate film layer can easily be ripped out from the second thin layer; So that, by this way, the intermediate film layer and the third thin layer can easily be ripped out from the bag structure.

1 . An improved medical sterilization bag, comprising:
 a first thin layer, being fabricated by a waterproof and gasproof material;   a second thin layer, also being fabricated by the waterproof and gasproof material, wherein the three edges of the second thin layer are attached to the three edges of the first thin layer for forming a bag structure with a first opening, so that an object under sterilization can be put into an accommodating space of the bag structure through the first opening, moreover, a second opening is formed on the second thin layer and the object under sterilization can be taken out of the accommodating space through the second opening;   an intermediate film layer, being attached to the surface of the second thin layer and covering the second opening, wherein the intermediate film layer has a third opening and the size and the position of the third opening are relative and opposite to the second opening; and   an third thin layer, being fabricated by a material with waterproof, moisture permeability and breathable properties, and being attached to the surface of the intermediate film layer for covering the third opening, wherein the third thin layer is adopted for allowing the water mist to enter the accommodating space when the sterilization is executed in the bag structure;   wherein the third thin layer are tightly pasted with the intermediate film layer and can not to be ripped out from the intermediate film layer easily, but the intermediate film layer can easily be ripped out from the second thin layer; So that, by this way, the intermediate film layer and the third thin layer can easily be ripped out from the bag structure.   
     
     
         2 . The improved medical sterilization bag of  claim 1 , wherein the intermediate film layer further comprising:
 a first film layer, being tightly attached to the third thin layer and can not be ripped out from the third thin layer easily;   a second film layer, being attached to the second thin layer and can be ripped out from the second thin layer easily; and   an intermediate separation layer, being tightly attached to the first film layer and the second film layer, used for separating the first film layer and the second film layer, so as to avoid the characteristics interference occurring in the first film layer and the second film layer resulted from the material mixing of the first film layer and the second film layer.   
     
     
         3 . The improved medical sterilization bag of  claim 2 , wherein the material of the first film layer is low-density polyethylene (LDPE), the material of the second film layer is ethylene vinyl acetate (EVA), and the material of the intermediate separation layer is high-density polyethylene (HDPE). 
     
     
         4 . The improved medical sterilization bag of  claim 3 , wherein the thickness of the first film layer is 30 μm, the thickness of the second film layer is 15 μm, and the thickness of the intermediate separation layer is 30 μm. 
     
     
         5 . The improved medical sterilization bag of  claim 2 , wherein the material of the first film layer is low-density polyethylene (LDPE), the material of the second film layer is a specific LDPE, and the material of the intermediate separation layer is poly-ethylene terephthalate (PET). 
     
     
         6 . The improved medical sterilization bag of  claim 5 , wherein the thickness of the first film layer is 20 μm, the thickness of the second film layer is 20 μm, and the thickness of the intermediate separation layer is 12 μm. 
     
     
         7 . The improved medical sterilization bag of  claim 5 , wherein the specific LDPE is made by adding plastic particles having strippable characteristics into the low-density polyethylene (LDPE). 
     
     
         8 . The improved medical sterilization bag of  claim 1 , wherein at least one non-pasted district is formed between the intermediate film layer and the second thin layer, used for assisting a user to rip the intermediate film layer out from the second thin layer by way of putting user's fingers into the non-pasted district.