Negative pressure drainage flushing device for surgical cavitary wound surface treatment

Abstract

The invention discloses a negative pressure drainage flushing device for surgical cavitary wound surface treatment. The negative pressure drainage flushing device comprises a double cannula and a foamsponge, the double cannula comprises a drainage tube and a supply tube, the supply tube penetrates the wall of the drainage tube and extends into the drainage tube, and a capillary tube is arranged on a section, extending into the drainage tube, of the supply tube and extend out from the wall of the drainage tube; a side hole is formed in the wall of the drainage tube, the foam sponge is wrappedoutside the drainage tube in a manner of corresponding to the side hole and the capillary tube, and section of the sponge is clover-shaped, so that impact on drainage effect caused by cavitary squeezing can be avoided. By the device, wounded cavity drainage efficiency can be improved, and infection is avoided; wounded cavity flushing and wounded cavity intervention technologies are introduced, andinfection is controlled, granulation growth is promoted, and wound surface healing is accelerated.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a negative pressure drainage and flushing device for treating surgical cavity wounds. Background technique [0002] Surgical lacunar wounds are refractory diseases caused by infection in surgical trauma. Surgical lacunar wounds usually present as sinuses and fistulas. Sinus tracts and fistulas are often protracted and recurrent, and there is often a large amount of exudate at the wound, accompanied by stench, which seriously affects the physical and mental health of the patient. Long-term treatment has caused a heavy burden to the family and society. [0003] The traditional treatment methods for sinus tracts and fistulas are debridement and passive drainage in vitro. This method uses "cigarette drainage" as the drainage carrier. Although it has a certain therapeutic effect, due to the limitations of materials such as gauze strips and silicone tubes, the drai...

AI Technical Summary

Problems solved by technology

Sinus tracts and fistulas are often protracted and recurrent, and there is often a large amount of exudate at the wound, accompanied by stench, which seriously affects the physical and mental health of the patient. Long-term treatment has caused a heavy burden to the family and society.

[0003] The traditional treatment methods for sinus tracts and fistulas are debridement and passive drainage in vitro. This method uses "cigarette drainage" as the drainage carrier. Although it has a certain therapeutic effect, due to the limitations of materials such as gauze strips and silicone tubes, the drainage effect is poor. Disadvantages such as uneven drainage, prone to retrograde infection, and strong pain in the affected area after long-term use

[0004] Existing clinical active drainage uses end-hole drainage tube or side-hole drainage tube to connect negative pressure for drainage. It is a point-like drainage that cannot fully contact the wound cavity, and the drainage tube is directly exposed in the drainage cavity. It is very easy to block, resulting in poor drainage and secondary infection. The drainage tube is directly exposed to the wound cavity, and it is easy to cause foreign body irritation, pain, rejection, etc.

[0005] Existing technology cannot achieve comprehensive and effective flushing of the wound cavity, resulting in deep secretion accumulation, slow granulation production, repeated infection, toxin reabsorption, systemic inflammatory response, etc.

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