Abstract: A cavitation seed for drug delivery, and a drug delivery method using the same are disclosed. The cavitation seed according to the present invention comprises: a shell which forms the outer surface thereof to maintain the outer shape thereof within a fluid; and a core which is located inside the shell to determine buoyancy of the cavitation seed within the fluid. The cavitation seed can improve an effect of delivering a drug into a body since cavitation is induced by ultrasound at a position close to the epidermis. In addition, the cavitation seed can be applied in the delivery of various drugs as well as skin cosmetics, such as skin tone lightening agents, depilatories, hair restorers and skin fillers, skin analgesics, local anesthetics, agents for genetic diseases such as psoriasis, and agents for treatment of skin disease such as skin cancer.
Type:
Grant
Filed:
April 8, 2021
Date of Patent:
May 23, 2023
Assignee:
Pacific System Co., Ltd.
Inventors:
Jong Woo Seo, Jong Bum Seo, Gill Soo Song
Abstract: Provided are a method for preparing liposomes comprising ultrasound reactive microbubbles for drug delivery, comprising (a) a step of producing ultrasound reactive microbubbles comprising an inert gas therein and having a first shell formed on the outer surface thereof, followed by forming a uniform size distribution of the ultrasound reactive microbubbles through an extruder; and (b) a step of producing liposomes comprising the ultrasound reactive microbubbles distributed in a uniform size and a medicament therein and having a second shell formed on the outer surface thereof, followed by forming a uniform size distribution of the liposomes through an extruder; and a liposome using same.
Type:
Grant
Filed:
March 20, 2019
Date of Patent:
November 22, 2022
Assignees:
BIOINFRA LIFE SCIENCE INC., PACIFIC SYSTEM CO., LTD.
Inventors:
Chui Woo Kim, Dong Hee Park, Jong Ho Won
Abstract: A cavitation seed for drug delivery, and a drug delivery method using the same are disclosed. The cavitation seed according to the present invention comprises: a shell which forms the outer surface thereof to maintain the outer shape thereof within a fluid; and a core which is located inside the shell to determine buoyancy of the cavitation seed within the fluid. The cavitation seed can improve an effect of delivering a drug into a body since cavitation is induced by ultrasound at a position close to the epidermis. In addition, the cavitation seed can be applied in the delivery of various drugs as well as skin cosmetics, such as skin tone lightening agents, depilatories, hair restorers and skin fillers, skin analgesics, local anesthetics, agents for genetic diseases such as psoriasis, and agents for treatment of skin disease such as skin cancer.
Type:
Grant
Filed:
May 27, 2016
Date of Patent:
May 11, 2021
Assignee:
Pacific System Co., Ltd.
Inventors:
Jong Woo Seo, Jong Bum Seo, Gill Soo Song