Skin dilator

US9883917B2 · kind B2 · utility

Assignee

• Shanghai Ninth People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine · CN

Inventors

• Yaokai Gan · Shanghai, CN
• Kerong DAI · Shanghai, CN
• Qingfeng Li · Hangzhou City, CN

Key dates

• Filing date: Mar 13, 2014
• Grant date: Feb 6, 2018
• Expiry date: Sep 11, 2034

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2210/04
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Disclosed is a skin dilator, comprising an expander (11), a pipe network provided on the skin-side surface wall (111) of the expander (11) composed of longitudinal tube (22) and horizontal tube (21) having a reticular structure and communicating with each other, and a guide tube (24) communicating with the pipe network. The skin dilator further comprises several burrs (25) distributed on the skin-side surface wall (111) of the expander (11), and several small apertures (23) communicating the inner cavity of the tube with the outside are provided on both of the longitudinal tube (22) and horizontal tube(21). The tissue expander can be infused biological agents by the filling port to the skin expanding site through the small apertures (23), which may accelerate the expansion growth of skin, prevent skin complications, such as necrosis.