RU33011U1 - System for draining purulent cavities - Google Patents

Description

,, IPC: A6IM27 / 00

System for draining purulent cavities

The proposed utility model relates to medicine, namely to surgery, and can be used to treat extensive purulent wounds and body cavities.

Despite the large number of methods for treating purulent wounds, the emergence of fraudulent antibacterial drugs, the problem of treating wounds and wound infections is still relevant. The leading role in the treatment is given to sanitation and adequate drainage of the purulent cavity. Currently, the most effective and frequently used method of drainage is active aspiration drainage of the wound. In this case, a variety of devices are used, for example, the Kanshchina device, which is a 2-lumen drainage tube, one of the gaps of which is a wide drainage lumen connected to a vacuum aspirator, and the other is an intra-drainage microirrigator, connected to a vessel with liquid for constant wound irrigation . (Wounds and wound infection. Edited by M.I. Kuzin, B.M., Kostyuchenok.-M.: Medicine, 1981, p. 688, ill.) Disadvantages:

The system is ineffective in draining large open wound cavities due to the mismatch between the size of the wound and the drainage tube

The system is not applicable in the presence of capillary bleeding from the walls of the wound, as it can increase bleeding

The system is ineffective in draining wounds surrounded by walls of loose consistency due to the suction of tissue fragments to the holes of the drainage tube, interfering with aspiration of wound contents. For the prototype of the proposed utility model selected drainage-foam system,

consisting of a piece of conical shaped foam rubber with a PVC drainage tube inserted from one end, made with side holes and located in the thickness of the foam so that the distal part does not extend beyond the foam, and all side holes are located in the depth of the foam, (Soloviev V.A. Treatment and prevention of inconsistency of sutures after resection of the stomach ... Abstract of thesis, candidate of medical sciences Gorky - 1988).

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located inside the foam blank. The prototype system is placed in a purulent wound or cavity so that the foam completely obturates it, while the drainage tube is brought out and connected to a vacuum aspirator. It is possible to drain large cavities and wounds with walls of any consistency, including in the presence of capillary bleeding from the walls of the wound. The disadvantage of the system is the lack of a device for flow-aspiration drainage of a wound, since the device provides only aspiration of wound contents through a large diameter drainage tube.

The objective of the proposed utility model is the creation of the possibility of ensuring, along with aspiration of wound contents, continuous irrigation of the wound by means of flow-aspiration drainage.

The task in the system for drainage of purulent cavities, consisting of a piece of conical foam rubber with a PVC drainage tube embedded in it from one end, made with side holes and located in the foam core so that its distal part does not extend beyond the foam, and all the lateral holes were located in the depth of the foam, it is achieved by the fact that it additionally contains a second drainage PVC pipe of a smaller diameter embedded in the foam than the first drainage pipe Protruding from both ends of the foam of 1-2 cm, formed without openings, and serving as mikroirrigator.

In FIG. 1 shows a drawing diagram of the proposed system for drainage of purulent cavities. In FIG. 1 is indicated by:

1-foam rubber

2-drain pipe with side holes

3-microirrigator

The proposed device is manufactured as follows:

A conical-shaped piece of foam rubber and a drainage tube with holes cut into it are prepared in a portion equal to the length of the foam rubber. The tube section carrying the holes is inserted into the foam blank so that all the holes are inside the blank, and the tube section without holes protrudes from the larger diameter of the foam cone. Then, a second polyvinyl chloride tube of a smaller diameter is introduced into the foam, without holes - a micro-irrigator protruding both from the side of the small diameter of the cone by 1-2 cm, and from the side of the large diameter of the foam with drainage of a large diameter of 10-15 cm.

the proposed device operates as follows. Foam rubber is placed in a wound in a compressed state, straightening, it fills the wound, touching its walls. The microirrigator is attached to the vial with an antimicrobial agent. The long end of the microirrigator is attached to the bottle with a solution for irrigation of the wound, and the large-diameter drainage is connected to a vacuum aspirator. It is ensured that the antimicrobial agent introduced into the wound through the microirrigator is completely evacuated by large diameter drainage, while the amount of evacuated fluid should be greater than the amount of fluid introduced into the wound, and the difference will be an indicator of the amount of wound discharge. An example of a specific application of the system is given in the form of an extract from the medical history No. 0308441. Patient M., 56 years old, was in the coloproctology department for colorectal cancer TsNoMo. the distal edge of the tumor is 4 cm from the anus, partial intestinal obstruction. After a course of radiation therapy with large fractions of SOD 25 Gray, extirpation of the rectum was completed, which was completed by plugging the perineal wound. In the postoperative period, against the background of a post-radiation reaction, pelvic phlegmon developed, manifested in the form of fever and profuse purulent discharge from the wound. Washing the wound with furatsillin during dressings did not improve the patient's condition, the fever and symptoms of purulent intoxication persisted. A system was introduced into the wound for flow-aspiration drainage of purulent cavities, a microirrigator was connected to a vial with furatsillin, large diameter drainage was connected to a vacuum-suction, continuous flow and aspiration drainage of the perineal wound was carried out for 2 weeks with 2 liters of furatsillin per day. On the 2nd day of treatment, the temperature returned to normal and the symptoms of purulent intoxication disappeared, but the release of pus continued throughout the week. On the 8th day of treatment, the effectiveness of drainage decreased, fever reappeared, the system for flow-suction drainage changed, and treatment continued. The wound was completely cleaned on day 11 and after removing the system did not require further rehabilitation. The proposed model has the following advantages:

Efficiency in draining large open wound cavities due to full compliance with the size and shape of the wound and drainage device

Efficiency in the presence of capillary bleeding from the walls of the wound, since foam rubber provides tamponade of the wound with a hemostatic effect

Efficiency in draining wounds surrounded by loose consistency walls due to aspiration of wound contents over the entire surface of foam, which is a highly hygroscopic material.

Claims (2)

1. A system for draining purulent cavities, consisting of a piece of conical shaped foam rubber with a PVC drainage tube inserted into it from one end, made with side openings and located in the thickness of the foam so that its distal part does not extend beyond the foam, and all side the holes were located in the depth of the foam, characterized in that it further comprises a second drainage PVC pipe of a smaller diameter embedded in the foam than the first drain pipe protruding from both x all foam 1-2 cm, made with no holes, and used as a mikroirrigator. 2. The system for draining purulent cavities according to claim 1, characterized in that the diameter and number of side holes in the first drainage tube can be arbitrary.