The incidence of diabetic foot in elderly patients has been increasing year by year. Due to its pathogenesis based on peripheral nerve and peripheral vascular lesions, it often leads to severe and difficult-to-heal wounds. Moreover, the decline in the general condition of elderly patients makes them highly susceptible to wound infections, which further expand the wounds and make healing more difficult. Many patients still end up with amputation or even multiple amputations after a long period of treatment, accounting for about 84% of non-traumatic amputations. The long course of limb salvage treatment imposes a huge burden on patients physically, psychologically, and economically. Therefore, when formulating a treatment plan for elderly patients with diabetic foot complicated by infection, it is particularly important to accelerate wound healing, reduce the incidence of major amputation, and shorten the treatment time.

In recent years, negative pressure wound therapy (NPWT) has been widely used in the treatment of diabetic foot. Its advantages include: maintaining wound stability, draining exudates, reducing tissue edema, increasing wound blood flow, promoting cell proliferation and granulation tissue growth, reducing factors that are unfavorable to wound healing, and increasing factors that are conducive to wound healing.

A hospital admitted a patient with diabetic foot: an 82-year-old female. After debridement, the wound was approximately 3 cm in size. After using our company's Portable Negative Pressure Wound Therapy Device for three months, the wound margin has significantly reduced, and both the patient and her family are quite satisfied.

Negative pressure wound therapy (NPWT) technology has been applied in clinical practice since the 1980s, gradually becoming a conventional method for treating tissue defects and chronic wounds. China introduced this technology in 1994 and named it negative pressure closed drainage. The technology promotes wound healing by applying low negative pressure, including effects such as stimulating cells to secrete growth factors, draining exudate, removing necrotic tissue and bacteria, and reducing edema. Nearly two decades of clinical practice have proven that NPWT has good healing effects on various acute and chronic wound management.

Product Features of Shuangwei Biotechnology Portable Negative Pressure Wound Therapy Device：
1.Convenient and Portable Use  
Patients do not need to rely on central negative pressure equipment in hospitals. The device can be carried around, expanding the range of activities and improving the quality of life. Clinical trials have shown that this product is particularly suitable for home use by patients with limited access to transportation.
2.Multiple Working Modes  
During clinical treatment, different wounds have varying requirements for pressure mode selection. In response to this characteristic, we have set up different working modes for clinical choice, which is conducive to wound healing.
3.Comprehensive Alarm Functions  
To ensure the safety and effectiveness of the device during use, R&D engineers have designed a more secure voice alarm system by starting from real-world usage scenarios and repeatedly simulating possible abnormal conditions. It features four types of voice alarm functions, facilitating safe operation for users in various clinical situations.
4.Excellent Performance  
Equipped with a built-in 2000mAh lithium battery, the device features low power consumption, enabling approximately 10-12 hours of operation when fully charged. It can generate a maximum negative pressure of 300mmHg and has a maximum fluid storage capacity of 80ml, making it suitable for draining various acute wounds, chronic non-healing wounds, and surgical wounds with heavy exudation.