A medical wound dressing equipped with a cleaning device

Abstract

The invention discloses a medical wound dressing internal cleaning device, which comprises a device body, a conveying tube, a negative pressure absorption tube and a drainage tube installed on the side wall of the device body. The inner cavity of the device body is divided into a central positive pressure chamber for delivering cleaning fluid or drug administration and a central negative pressure chamber for absorbing liquefied water substances. The central positive pressure chamber and the central negative pressure chamber There are a number of drainage tube interfaces distributed on the outer wall, and the drainage tubes communicate with the corresponding central positive pressure chambers and central negative pressure chambers through the drainage tube interfaces; the central positive pressure chambers are connected with the delivery tube, and the The central negative pressure chamber is connected with the negative pressure absorption pipe. A medical wound dressing and a medical wound dressing cleaning system using the cleaning device are also disclosed. The invention separates the cleaning liquid entry circuit from the recovery circuit of the liquefied water accumulation, and can realize efficient circulation of the cleaning liquid inside the wound dressing.

Description

technical field [0001] The invention relates to the field of medical wound dressings, in particular to an internal cleaning device for medical wound dressings, a medical wound dressing and a cleaning system. Background technique [0002] Vacuum sealing drainage (VSD for short) was first created by Dr. Wim Fleischman of ULM University in Germany in 1992, and formed a theoretical prototype for the drainage of extremity wounds; in 1994, Professor Qiu Huade of China first applied the vacuum sealing drainage technology to General surgery, pioneered the application of negative pressure sealing drainage technology in general surgery. [0003] The basic configuration of existing VSD technology includes negative pressure source (including medical negative pressure suction machine, central negative pressure device or negative pressure drainage bottle used in hospitals, etc.), drainage tube, hydrophilic foam material or other medical hydrophobic foam material or Sponge dressing or gau...

AI Technical Summary

Problems solved by technology

[0007] 1) Most of the dressings on the market are connected with simple cleaning pipelines and negative pressure pipelines. The cleaning pipelines are used to clean the dressings, and the negative pressure pipelines are used to recover blood, exudate, and liquefied necrosis in human tissues. Tissue fragments and pus and other liquefied water accumulation substances, the cleaning pipeline is connected to the negative pressure pipeline, which will cause the cleaning fluid to flow back in situ and be directly sucked away by the negative pressure tube, resulting in low cleaning efficiency of the dressing

[0008] 2) Most medical dressings need to be cut according to the size of the patient's wound. After cutting, the drainage tube in the dressing needs to be pumped to a suitable position. During the pumping process, the airtightness of the product will easily deteriorate and air leakage will occur. Thus affecting the effect of negative pressure drainage

[0009] 3) The dressings currently on the market are not suitable for dismantling, washing and reuse, resulting in short service life and low utilization rate;

[0010] 4) Existing products cannot be directly administered to the wound

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