Abstract: Disclosed is a dental implant distractor, comprising an implant module and a traction module. The implant module comprises an implant, a sealing screw, and a base body. The traction module comprises a connecting screw rod, a traction screw rod, an inner sleeve, and an outer sleeve; the connecting screw rod is threadedly connected to the base body; the traction screw rod is located below the connecting screw rod; the inner sleeve is provided below the base body. This apparatus can automatically complete the installation of the base body and the sealing of the connecting screw rod after traction is completed; since the installation of the base body and the sealing do not need to be performed again, operation steps are simplified, the clinical operation difficulty is reduced, and the problem of slippage of an upper bone section to the original position is avoided.

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.

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.