know more about plastic syringe

First of all, the current perfusion device is mainly made of glass material and plastic material. The plastic perfusion device is gradually replacing the glass syringe. The main cost is lower, the safety is higher than that of the glass syringe, and it is not easy to be broken. The production process of the perfusion device itself is relatively advanced, and the infusion device is generally produced by an injection molding process. The products produced by the injection molding process are molded at one time without any scraps, and the products are accurate in size and uniform in weight.

dial a dose syringe

plastic syringe

Secondly, the sealing requirements of the perfusion product are high. When selecting the perfusion device, the sealing property should be tested. Half of the water is injected into the perfusion device, the piston is inserted into the syringe, the protective cap is removed, and the residual air is removed. Block with the cap and apply an axial pressure of 30 N on the pusher plug inside the syringe through the push rod for 30 seconds. There should be no leakage at the cap seal and the piston seal.

Third, the plastic syringe must be guaranteed to be sterility due to direct contact with the drug. Generally, the syringe should be produced in a clean workshop that meets national standards. In addition, in order to ensure sterility, if the veterinary drug manufacturer has higher sterility. Additional requirements for ethylene oxide sterilization or cobalt 60 irradiation sterilization are required.

The COP vial sterilization method

The COP vial shows high durability against ethylene oxide gas and high-energy rays (gamma rays, electron beams). It does not change color under high-energy rays, but its mechanical properties have hardly decreased.So the COP vial has the characteristics of high temperature steam sterilization, and has the characteristics of low temperature storage.

Irradiation sterilization is an effective method to kill the microorganisms on most substances by using electromagnetic waves generated by ionizing radiation. The ray used for sterilization includes electron beam, X-ray and γ-ray. They can control microbial growth or kill microbes in specific ways.

High-pressure steam sterilization and high-temperature and high-pressure sterilization can not only kill general bacteria, fungi and other microorganisms, but also have spore and spore killing effects. It is the most reliable and widely used physical sterilization method.

plastic eye dropper bottles leachables test

Plastic eye dropper bottles leachables test method as follow.

For the preparation of the test solution, take an inner area of 600 square centimeters of the flat part of the product, cut it into small pieces of 3 * 0.3cm, put it in a 500Ml conical flask, wash with 150ml of water and shake, discard the washing solution, After drying at 40 ° C, 200ml of water for injection was added, and the tube was sealed, kept at 70 ° C for 24 hours, and taken out. Allow to cool to room temperature to obtain the test solution. Using the same batch of water as a blank solution, the following experiments were performed in order.

5ml eye dropper bottles

Clarity: Take the appropriate amount of test solution, check according to law, the solution should be clear, if it shows turbidity, it should not be more concentrated than the turbidity standard solution No. 2.

pH change value: Take 20ml each of test solution and blank solution, add 1ml potassium chloride solution, and measure according to law.

Absorbance: Take the appropriate amount of test solution and measure it according to ultraviolet rays. The maximum absorbance should not exceed 0.10 between 220-360nm wavelength.

Easy oxide: Precisely measure 20ml of the test solution, add 20ml of high-moist acid-base titration solution and 1ml of dilute sulfuric acid, and boil for 3 minutes, quickly cool, add 0.1g of potassium iodide, leave in the dark for 5 minutes, titrate with sodium thiosulfate Drop the liquid to light brown, then add 5 drops of starch indicator liquid, drop to colorless. Colleagues do blank experiments. The difference between the two consumption of sodium thiosulfate should not exceed 1.5ml.

Non-volatile matter: Precisely measure 50ml each of the test solution and the blank solution, and place them in an evaporation dish with a constant weight. After evaporating in a water bath, dry at 105 ° C to a constant weight.

Heavy metals: Precisely measure 20ml of the test solution, add 2ml of acetate buffer solution, and check according to law. The content of heavy metals must not exceed one millionth.

How to confirm accuracy test strips

Even though the manufacturers strive to be as accurate as possible, there is always a margin of error. According to the Food and Drug Administration Department regulations for all blood glucose test glucometer:

For result at or above 75 mg/dl (4.2 mmol/l), 95% of the meter test outcomes must be within ±20% of the actual blood glucose level. For example, if your meter reads 100, your actual glucose level can actually be anywhere between 80 to 120.

glucose test strip container 

For results below 75 mg/dl: 95% of the test results must be within plus or minus 15 points of the actual blood glucose level. So a reading of 70 only gives an indication that your actual glucose level is anywhere between 55 to 85.

This is the unfortunate trade-off for having equipment that is both small and easy to use. Given that there is a margin of error, almost all glucometers are close to being equally accurate. In addition, there are other factors that may play a role in the accuracy of test strips:

Sellers’ method of storing the test strips may contribute to the accuracy of the strips. As explained earlier, humidity and temperature will affect how well the enzymes in the test strip work. If they keep the test strips in a hot warehouse, no wonder you will hear reviewers complaining that the readings are very inaccurate.

How consumers use and store their test strips will affect the accuracy of the test strips. Improper storage and use, rough handling of the test strips, and expired test strips are some of the most common sources of error in-home blood glucose monitoring. Another common mistake is to use one brand of test strips on a different brand glucometer.

glucose test strip container

glucose test strip container

Suitable storage for glucose test strips

Glucose tests strips need dry and seal container to storage, the container must keep them away from moisture and humidity.  The bottle cap must have a desiccant to absorb and absorb water molecules to keep the test strip in an effective position without deterioration; secondly, it adopts a flip-top design for easy opening.

glucose test strip container

Blood glucose test strips play a crucial role in helping you to monitor your daily blood glucose level and giving your doctor the data to adjust your medication to control your diabetes symptoms. 

test strip containers