초록 ▼

An apparatus for performing in-vivo sonoporation of a skin area and transdermal and/or intradermal delivery of a drug solution includes a container having an end covered with a porous membrane and containing the drug solution and an ultrasound horn having a tip submerged in the drug solution. The ul

An apparatus for performing in-vivo sonoporation of a skin area and transdermal and/or intradermal delivery of a drug solution includes a container having an end covered with a porous membrane and containing the drug solution and an ultrasound horn having a tip submerged in the drug solution. The ultrasound horn applies ultrasound radiation to the drug solution. The ultrasound radiation has a frequency in the range of 15 KHz and 1 MHz and is applied at an intensity, for a period of time and at a distance from said skin area effective to generate cavitation bubbles. The cavitation bubbles collapse and transfer their energy into the skin area thus causing the formation of pores in the skin area. The ultrasound radiation intensity and distance from the skin area are also effective in generating ultrasonic jets, which ultrasonic jets then drive the drug solution through the porous membrane and the formed pores into the skin.

대표청구항 ▼

1. An apparatus for performing in-vivo sonoporation of a skin area and transdermal and/or intradermal delivery of a drug solution comprising:a container having an end covered with a porous membrane and containing said drug solution; an ultrasound horn having a tip submerged in said drug solution and

1. An apparatus for performing in-vivo sonoporation of a skin area and transdermal and/or intradermal delivery of a drug solution comprising:a container having an end covered with a porous membrane and containing said drug solution; an ultrasound horn having a tip submerged in said drug solution and applying ultrasound radiation to said drug solution wherein said ultrasound radiation has a frequency in the range of 15 KHz and 1 MHz and is applied at an intensity, for a period of time and at a distance from said skin area effective to generate cavitation bubbles, wherein said cavitation bubbles collapse and transfer their energy into the skin area thus causing the formation of pores in the skin area; and wherein said ultrasound radiation intensity and distance from the skin area are also effective in generating ultrasonic jets, said ultrasonic jets driving said drug solution through said porous membrane and said formed pores into the skin area.