초록 ▼

A device for removing material from biological organisms by directing an abrasive fluid stream onto a surface of a biological organism. The device operates on a standard household pressure source and includes a converging-diverging nozzle that produces a super-sonic abrasive-laden air stream having

A device for removing material from biological organisms by directing an abrasive fluid stream onto a surface of a biological organism. The device operates on a standard household pressure source and includes a converging-diverging nozzle that produces a super-sonic abrasive-laden air stream having a temperature that is harmless to the biological organism. The device operates at such a temperature without the use of external elements, such as additional heaters or coolers. The internal contour of the nozzle bore is variable and determines conditions, such as, for example, velocity, temperature and shape of the particle-laden air stream.

대표청구항 ▼

[ We claim:] [1.] An abrasion tool, includinga source of pressurized abrasive-laden fluid,a handpiece having a body with a first bore extending between a first end and a second end of the body, said first end of the body connected to the source of pressurized abrasive-laden fluid,a nozzle tip having

[ We claim:] [1.] An abrasion tool, includinga source of pressurized abrasive-laden fluid,a handpiece having a body with a first bore extending between a first end and a second end of the body, said first end of the body connected to the source of pressurized abrasive-laden fluid,a nozzle tip having a second bore extending between a first end and a second end of the nozzle tip,said nozzle tip having its first end connected to the second end of the body of the handpiece and including four sections that the pressurized abrasive-laden fluid passes through in succession,the first section being an elliptically converging wall section, the second section being a diverging expansion wall section, the third section being a diverging compression wall section, the fourth section being a parallel-flow particle acceleration wall section.