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(12) PATENT APPLICATION PUBLICATION
(19) INDIA (21) APPLICATION No: 1401/CHE/2005A
(22) Date of filing of Application:03/10/2005 (43) Publication Date: 09/06/2006
(54) Title of the invention:
IMPROVED ULTRASONIC DEVICE
FOR BONE ASSESSMENT.
(51)International classification:A 61B
008/00
(31) Priority Document No.
(32) Priority Date:
(33) Name of priority country:
(87) WIPO No. :
(61) Patent of addition to
Application No. :
Filed on:
(62) Divisional to
Applcation No.:
Filed on:
(71) Name of Applicant
LARSEN & TOUBRO LIMITED,
Address of Applicant:
KIADB INDUSTRIAL AREA,HEBBAL-
HOOTAGALLI,,
MYSORE-570 018,,
KARANATAKA,,
INDIA.
(72) Name of the Inventor(s):
RAJDEEP GHOSH.
SOMASHEKAR UMADI.
SOWMYA.
RAJ AGARVAL.
NAGARAJAN RAVINDRAN.
(57)Abstract
The present invention provides an accurate system for measuring the osteoporosis condition of members and
specifically bones using a multi-parameter approach with more than three with specifically four parameters being
measured. The parameters being measured are broadband ultrasonic attenuation (BUA), speed of Ultrasound (SOS)
through the bone, broadband ultrasonic backscatter (BUB) and width of received maximum (WORM). The accuracy
of the final resulting diagnostic parameter is increased by making the tissue thickness and coupling pad squish
measurements instead of assuming constant thickness of tissue, using a field programmable gate array for controlling
various modes of operation and calculations, and using four parameters for calculating the ultimate diagnostic
parameter that gives the status of the bone being analyzed instead of two or three parameters being used by existing
densitometers. Also the error in the measurement caused due to variation in foot anatomy and size is minimized by
the use of removable Foot Pad. The present invention also provides a mechanism for easy replacement of gel pads.
Here the use of easily replaceable and disposable coupling pads (gel pads) will help in prevention of cross infection.
The Patent Office Journal 09/06/2006 10752