ABSTRACT
ObjectiveTo provide anatomical basis of neural transplantation to repair deep branch of ulnar nerve defect with the ring finger radial digital branch.MethodsThirty-two sides of 16 cases fresh forearms were dissected and observed.Microdissect and measure the deep branch of ulnar nerve,quadrate pronator of median nerve and it's ring finger radial digital branch under 10-times operating microscope. ResultsThe diameter of quadrate pronator of median nerve was (1.13 ± 0.02)mm,ring finger radial digital branch of median nerve was (1.17 ± 0.05)mm,mid-palmar section of deep branch of ulnar nerve was(1.75± 0.07)mm.Dissect ring finger radial digital branch of median nerve to muscular branch of quadrate pronator under operating microscope,retaining it's blood supply.The length between the deep branch of ulnar nerve and ring finger radial digital branch was( 104.59 ± 20.25)mm.Conclusion①Solving the problem of nervegrafting without blood supply before,benefit to the survival of the grafting segment and the regeneration of the neuro fiber,and function restoring.②This kind of grafting is the bridging of muscular branch to muscular branch,abide by the principle of neurophysiology.③Neural transplantation to repair deep branch of ulnar nerve defect with the ring finger radial digital branch is an effective method.
ABSTRACT
In order to achieve real-time data acquisition and process, a signal acquisition and process system was designed based on USB2.0., in which DSP (Digital Signal Processor) acted as the core. Utilizing the powerful data processing capability of DSP, this system can extract biomedical signals from weak signals and then analyze them. At the same time, it realizes a high-speed and dependable transmission of data between DSP and PC.