Maxim-English inventor (born in the United States) who invented the Maxim gun that was used in World War I (1840-1916).
Negative pressure wound therapy is a medical procedure in which a vacuum dressing is used to enhance and promote wound healing in acute, chronic and burn wounds. The therapy involves using a sealed wound dressing attached to a pump to create a negative pressure environment in the wound.ses for Negative Pressure Wound Therapy. Several different types of wounds can benefit from negative pressure wound therapy such as: 1  diabetic ulcers. 2  venous ulcers. 3  arterial ulcers. 4  pressure ulcers. 5  first and second degree burns. 6  chronic wounds. 7  wounds with large amounts of drainage.
What are the Treatment Options? Avascular necrosis can be treated in three main ways: core decompression, free tissue transfer, and hip replacement. Treatment choices are dependent on many different factors including patient age, any other diseases the patient has, and the cause and stage of the AVN.