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Classification of vacuum blood collection tubes, principle and function of additives – part 1
The vacuum blood collection device consists of three parts: a vacuum blood collection tube, a blood collection needle (including a straight needle and a scalp blood collection needle), and a needle holder. The vacuum blood collection tube is its main component, which is ...Read more -
Knowledge of serum, plasma and blood collection tubes – part 3
Plasma is a cell-free liquid obtained by centrifuging the whole blood that leaves the blood vessel after anticoagulation treatment. It contains fibrinogen (fibrinogen can be converted into fibrin and has a coagulation effect). When calcium ions are added to the plasma, r...Read more -
Knowledge of serum, plasma and blood collection tubes – part 2
The basic components of plasma A. Plasma protein Plasma protein can be divided into albumin (3.8g% ~ 4.8g%), globulin (2.0g% ~ 3.5g%), and fibrinogen (0.2g% ~ 0.4g%) and other components. Its main functions are now introduced as follows: a. Formation of plasma colloid o...Read more -
Knowledge of serum, plasma and blood collection tubes – part 1
Serum is a pale yellow transparent liquid precipitated by blood coagulation. If the blood is drawn from the blood vessel and put into a test tube without anticoagulant, the coagulation reaction is activated, and the blood coagulates rapidly to form a jelly. The blood clo...Read more -
The mechanism of separating gel for separating serum and blood clots
The mechanism of separating gel The serum separation gel is composed of hydrophobic organic compounds and silica powder. It is a thixotropic mucus colloid. Its structure contains a large number of hydrogen bonds. Due to the association of hydrogen bonds, a network struc...Read more -
Classification and description of blood collection tubes – part 2
Classification and description of blood collection tubes 1. Biochemical Biochemical blood collection tubes are divided into additive-free tubes (red cap), coagulation-promoting tubes (orange-red cap), and separation rubber tubes (yellow cap). The inner wall of the high-q...Read more -
Classification and description of blood collection tubes – part 1
Classification and description of blood collection tubes 1. Common serum tube with red cap, blood collection tube without additives, used for routine serum biochemistry, blood bank and serology related tests. 2. The orange-red head cover of the rapid serum tube has a coa...Read more -
Precautions for vacuum blood collection tubes
What should we pay attention to in vacuum blood collection? 1. Selection of vacuum blood collection tubes and injection sequence Select the corresponding test tube according to the test item. The blood injection sequence is culture flask, ordinary test tube, test tube co...Read more -
Classification of vacuum blood collection tubes – part 2
Classification of vacuum blood collection vessels 6. Heparin anticoagulation tube with green cap Heparin was added to the blood collection tube. Heparin directly has the effect of antithrombin, which can prolong the coagulation time of the specimen. For emergency and mos...Read more -
Classification of vacuum blood collection tubes – part 1
There are 9 types of vacuum blood collection tubes, which are distinguished by the color of the cap. 1. Common Serum Tube Red Cap The blood collection tube contains no additives, no anticoagulant or procoagulant ingredients, only vacuum. It is used for routine serum bioc...Read more -
Introduction to disposableinfusion sets
Disposable infusion set is a common three types of medical devices, mainly used for intravenous infusion in hospitals. For such devices that come into direct contact with the human body, every link is important, from production to pre-production safety evaluation to post...Read more -
Current situation and development trend of disposable syringes – 2
The development trend of single-use syringes Due to the current clinical use of disposable sterile syringes, there are many drawbacks, and the World Health Organization has put forward new requirements for safe injections. China began to use and implement new types of sy...Read more -
Current situation and development trend of disposable syringes – 1
At present, clinical syringes are mostly the second-generation disposable sterile plastic syringes, which are widely used because of their advantages of reliable sterilization, low cost, and convenient use. However, due to poor management in some hospitals, the repeated ...Read more -
How much do you know about disposable laparoscopic trocar?
When it comes to laparoscopic surgery, people are not unfamiliar. Usually, the surgical operation is performed in the patient cavity through 2-3 small incisions of 1 cm. The main purpose of the disposable laparoscopic trocar in laparoscopic surgery is to penetrate. The f...Read more -
Introduction and analysis of stapler – part 2
3. Stapler classification The linear cutting stapler includes a handle body, a push knife, a nail magazine seat and an anvil seat, the handle body is provided with a push button for controlling the push knife, a cam is rotatably connected to the handle body, and the cam ...Read more
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