Negative pressure drainage debridement device for diabetic feet

Abstract

Disclosed is a negative pressure drainage debridement device for the diabetic feet. The negative pressure drainage debridement device for the diabetic feet comprises an anti-blocking device, a negative pressure assembly, a drainage bottle and a suction assembly; the anti-blocking device comprises a shell, a liquid inlet pipe, a liquid outlet pipe, a first branch pipe, a second branch pipe and a crushing assembly; the liquid inlet pipe stretches into the shell from one side of the shell and is communicated with the first branch pipe, the first branch pipe is internally and fixedly provided witha filtering net and a conical ring and communicated with a communicating pipe vertically arranged in the crushing assembly, the communicating part is located at the portion, between the filtering netand the fixing end of the conical ring, of the pipe wall of the lower side, the bottom of the communicating pipe is communicated with the feeding end of a crushing cylinder, and a rotating shaft is positioned in the crushing cylinder through a bearing and driven by a motor and is coaxial with the crushing cylinder; the rotating shaft is fixedly provided with a first thread, a second thread, a conical body and a spiral feeding piece from a feeding port of the feeding end of the crushing cylinder to a discharging port in sequence. The negative pressure drainage debridement device can effectively prevent a pipeline from being blocked and work more stably.

Description

technical field [0001] The invention relates to a debridement device, in particular to a negative pressure drainage debridement device for diabetic foot wounds. Background technique [0002] Diabetic foot refers to a disease state in which ulcers and gangrene occur in the feet of diabetic patients due to neuropathy that weakens the protective function of the lower limbs, and macrovascular and microvascular lesions that cause insufficient arterial perfusion and microcirculation disturbance. Diabetic foot is a serious complication of diabetes, and it is one of the important causes of disability and even death of diabetic patients, causing great suffering to patients. [0003] There are two types of diabetic foot disease, dry and wet, but there will be symptoms such as bacterial infection, pus, and local necrosis. Among the local treatment methods, debridement is used more often. [0004] For completeness, an assistive device is usually used to drain the pus and irrigate the ...

AI Technical Summary

Problems solved by technology

Although it can achieve the purpose of breaking tissue and preventing pipeline blockage, in actual operation, when the drainage liquid passes through the wheel body, on the one hand, the drainage pressure in the pipeline that directly attracts pus will drop. The gap between the inner surface of the wheel and the inner surface of the wheel is very small, and the blades rotate relatively. The reverse pressure of the blade rotation on the liquid is not considered. When only the centrifugal force is considered, the liquid flows to the inner wall of the wheel, which hinders the liquid from moving to the negative pressure point, resulting in suction pressure. On the contrary, the section from the suction point to the entrance of the wheel body is easy to be blocked. On the other hand, during the ultrasonic crushing process of tissue and pus, the distribution of the pus in the blade spacer is random after entering the wheel body and being broken up by the blades. This will make the conduction path of the negative pressure unstable, which will cause the negative pressure to be unstable in the wheel body, so that in the actual negative pressure drainage process, the pressure in the pipeline between the suction point and the inlet of the wheel body is unstable, fluctuating. Low, it is also easy to cause the deposition of necrotic tissue

[0007] In addition, the structure of the wheel body is too complicated. It is only used for crushing tissue, and the cost is too high. It is not suitable for small institutions or personal households.

Moreover, the negative pressure suction pump, motor, anti-blocking device and suction bottle of the equipment are all set separately, which makes it very inconvenient to carry, use and maintain the equipment

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