Development of a new atmospheric pressure plasmaspray ionization for ambient mass spectrometry.

A new atmospheric pressure ionization method, plasmaspray ionization, termed as PSI, was developed to be an alternative ambient ion source for mass spectrometry. It comprises a plasma jet device and a sample spray part. While the nonthermal plasma jet strikes the surface of stainless steel tube out of the spray capillary, the sprayed sample will be ionized with the assistant of auxiliary gas.

[Clinical significance of vascular distribution type of the expanded skin in the mastoid region in congenital microtia].

Objective: To classify the blood vessel distribution of the expanded skin in the mastoid region and its relevance to reasonable and reliable design of the expanded flap for auricular reconstruction in congenital microtia.

Methods: The blood vessel distribution of the expanded skin in the mastoid region was observed by light permeation test. The expanded flaps with different ratio of length to width were designed according to their blood vessel distribution types.

[Surgical treatment of acquired ear defect].

Objective: To explore surgical procedure for the treatment of acquired ear defect.

Methods: The ear reconstruction was carried out by using soft tissue skin expander and autogenous rib cartilage framework, Medpor framework, auricular prosthesis, and so on.

Results: The long-term follow-ups showed that the flap of reconstructed ear was ruddy, soft, with normal sensory function.

[Classification and repairment of "butterfly ear" deformity].

Objective: To classify and repair "Butterfly Ear" deformity which presents characters of dysplasia of inferior auricle of ear and congenital bat ear.

Method: The repairment procedures include: type I: auricular cartilage flap inversion folding technique. type II: local ear skin flap.