Abstract: The invention relates a transmitter for transmitting data in bio-implantable medical devices, comprising: an activation unit which transmits, to a receiver, a predetermined number of frame bits which indicate the start of data transmission so as to activate the receiver; a preamble state notification unit which transmits, at the state where the receiver is activated or during data transmission to the receiver, a preamble data signal for turning the receiver into a preamble state; and a synchronization unit which transmits synchronization data for synchronization between the transmitter and the receiver in the preamble state.
Abstract: A stent includes a cylindrical main body contractible and expandable in a circumferential direction, a cover member coated on inner and/or outer circumference of the main body, and an inverse current preventing member for preventing food or fluid from reversely flowing. The inverse current preventing member is disposed in the main body and includes a fixing layer defining a passage having a diameter capable of allowing food and fluid to pass, the fixing layer being fixed in the main body and a valve layer extending from the fixing layer to a distal end of the main body.
Type:
Grant
Filed:
June 13, 2003
Date of Patent:
February 27, 2007
Assignee:
M. I. Tech Co., Ltd.
Inventors:
In-Kwon Jung, Sung-Soon An, Hun-Kuk Park