The type and selection of drain tube in operation area

A variety of drainage is left in the operating area, which can draw out the local exudation, pus, blood or leaking fluid, etc., which is a basic treatment of the operation. Its purposes are:

(1) Prevent various liquids from remaining in tissue cracks or body cavities, so as not to affect tissue repair and healing, in order to prevent secondary infection or infection aggravation.

(2) Observe whether there is active bleeding or leakage from suture (kissing) closure in the operating area after surgery, and check and monitor the changes in character, quantity and composition of various drainage fluid.

③ Postoperative treatment, such as lavage, medication, etc. Commonly used drainage has the following types:

(l) Yarn strips: Generally used for superficial wounds, there are oil yarn strips (made of petroleum jelly or paraffin oil) and salt water yarn strips. Oily yarn smooth and less irritating, can make the wound seepage and pus drainage smoothly, but also can prevent the wound on both sides sticky; But it won't stop the wound from leaking blood. When the wound oozes blood, saline gauze should be used, and dry gauze should be applied externally to stop bleeding. However, this is not conducive to the drainage of pus, because the salt water gauze quickly dry knot, after the wound hemostasis should be replaced by oil gauze drainage. For active bleeding deep in the wound, if other hemostatic methods are ineffective, dry gauze bandages can be packed. The number of yarn strips and yarn leads must be kept in mind when using this method to stop bleeding.

(2) Cigarette drain tube: It is used for deep wound cavity with little seepage. In a short time, the inner yarn axis can play an attractive role, and then can only keep the wound cracks around the yarn, so it is not suitable for the wound cavity with more seepage.

(3) hose: the most commonly used. Its shape, thickness and hardness are different, according to the need to choose. Generally, a soft rubber tube with a diameter of about 0.6cm (commonly used infusion tube in the past) is taken, the length of which is based on the depth of the wound, the number of strips is based on the amount of seepage and the size (or number) of the drainage mouth. It is advisable to use a 1cm diameter (or slightly thicker) rubber tube for drainage and connection of the water seal bottle (but do not use this rubber tube for abdominal drainage to avoid damage to the intestinal tube and serious adhesion). Other T-shaped tubes are mainly used to drain bile from the common bile duct, balloon double-cavity tubes (non-repulsive catheters) are mainly used to compress wounds and drain urine after prostatectomy, umbrella-shaped head catheters and ordinary catheters, etc., and can also be used for drainage of other lacunae as required.

(4) Casing plastic drain tube: formerly known as trough drainage, it is mainly used for the deep abdominal cavity. Its jacket is perforated to avoid being blocked by intestinal tube and other drainage. The inner tube can be connected to a negative pressure vessel or can be irrigated.

(5) Rubber membrane: It is used for the wound with narrow space, such as the surgical incision of brain, joint, thyroid, etc., and the wound can heal quickly after removing the surgical drain tube.

All indent drain tube(s) shall be secured outside the wound by means of tape, pin or suture to prevent it from escaping or falling into the wound. The outer lumen should be closed temporarily before leaving the operating table. A sterile dressing is applied.

　　What does the surgical drain tube do

　　How to care for surgical drain tube after operation