Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
AN INTELLIGENT TISSUE MIMICKING ULTRASONIC PHANTOM AND ITS PREPARATION
Document Type and Number:
WIPO Patent Application WO/2009/103220
Kind Code:
A1
Abstract:
An intelligent tissue mimicking ultrasonic phantom which has the following acoustic properties and other physical properties is a temperature-sensitive macromolecule gel: sound velocity: 1500-1550 m/s, acoustic impedance: (1.50-1.60)*106Pa*s/m, density: 1.01-1.06g/cm3, lower critical solution temperature(LCST) or volume phase transition temperature ,namely denaturation temperature, at which a volume change happens. At about the denaturation temperature point which is adjusted through changing the proportion of the raw materials, a reversible phase transition between the opaque phase and the transparent phase happens. Said gel can be a polymer of isopropyl acrylamide(NIPA). Said ultrasonic phantom has a transparent appearance, an adjustable thermal denaturation temperature, a stable temperature induced turbid region, a clear boundary and stable materials, deteriorates uneasily and ensures the quality consistency. The phantom is denatured and its appearance whitens as being heated, restores to its previous conditions as heating disappearing and can be recycled.

Inventors:
TIAN YUNBO (CN)
YE FANGWEI (CN)
Application Number:
PCT/CN2009/000161
Publication Date:
August 27, 2009
Filing Date:
February 17, 2009
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
CHONGQING HAIFU HIFU TECH CO (CN)
TIAN YUNBO (CN)
YE FANGWEI (CN)
International Classes:
A61N7/00; C08F120/56
Foreign References:
CN101293939A2008-10-29
JPH06116169A1994-04-26
CN1328067A2001-12-26
US6352860B12002-03-05
Other References:
WU HONG ET AL.: "Synthesis and Properties of Temperature-sensitive Poly( N-isopropylacrylamide / acrylamide) nanogel", PHAM J CHIN PLA, vol. 23, no. 4, August 2007 (2007-08-01), pages 245 - 249
Attorney, Agent or Firm:
TEE & HOWE INTELLECTUAL PROPERTY ATTORNEYS (Room 718 Beijing Capital Times Square, 88 Xichang'an Avenue, Xicheng District, Beijing 1, CN)
Download PDF: