WO1999049775A3 - Echocardiography workstation - Google Patents

Echocardiography workstation Download PDF

Info

Publication number
WO1999049775A3
WO1999049775A3 PCT/US1999/006999 US9906999W WO9949775A3 WO 1999049775 A3 WO1999049775 A3 WO 1999049775A3 US 9906999 W US9906999 W US 9906999W WO 9949775 A3 WO9949775 A3 WO 9949775A3
Authority
WO
WIPO (PCT)
Prior art keywords
echocardiography
analysis
diagnostic
workstation
automatic
Prior art date
Application number
PCT/US1999/006999
Other languages
French (fr)
Other versions
WO1999049775A2 (en
Inventor
Jeffrey Weisman
Stanley Zietz
Original Assignee
Echovision Inc
Jeffrey Weisman
Stanley Zietz
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Echovision Inc, Jeffrey Weisman, Stanley Zietz filed Critical Echovision Inc
Priority to US09/647,438 priority Critical patent/US6674879B1/en
Priority to AU34579/99A priority patent/AU3457999A/en
Priority to CA002326596A priority patent/CA2326596A1/en
Priority to EP99916218A priority patent/EP1090372A2/en
Publication of WO1999049775A2 publication Critical patent/WO1999049775A2/en
Publication of WO1999049775A3 publication Critical patent/WO1999049775A3/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/08—Detecting organic movements or changes, e.g. tumours, cysts, swellings
    • A61B8/0883—Detecting organic movements or changes, e.g. tumours, cysts, swellings for diagnosis of the heart
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/06—Measuring blood flow
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/08—Detecting organic movements or changes, e.g. tumours, cysts, swellings
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/46—Ultrasonic, sonic or infrasonic diagnostic devices with special arrangements for interfacing with the operator or the patient
    • A61B8/461—Displaying means of special interest
    • A61B8/463—Displaying means of special interest characterised by displaying multiple images or images and diagnostic data on one display
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/46—Ultrasonic, sonic or infrasonic diagnostic devices with special arrangements for interfacing with the operator or the patient
    • A61B8/461—Displaying means of special interest
    • A61B8/465—Displaying means of special interest adapted to display user selection data, e.g. icons or menus
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/52017—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
    • G01S7/52023—Details of receivers
    • G01S7/52025—Details of receivers for pulse systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/52017—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
    • G01S7/52046—Techniques for image enhancement involving transmitter or receiver
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/52017—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
    • G01S7/52053—Display arrangements
    • G01S7/52057—Cathode ray tube displays
    • G01S7/5206—Two-dimensional coordinated display of distance and direction; B-scan display
    • G01S7/52066—Time-position or time-motion displays
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/52017—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
    • G01S7/52085—Details related to the ultrasound signal acquisition, e.g. scan sequences
    • G01S7/52087—Details related to the ultrasound signal acquisition, e.g. scan sequences using synchronization techniques
    • G01S7/52088—Details related to the ultrasound signal acquisition, e.g. scan sequences using synchronization techniques involving retrospective scan line rearrangements
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/20—Analysis of motion
    • G06T7/246—Analysis of motion using feature-based methods, e.g. the tracking of corners or segments
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H15/00—ICT specially adapted for medical reports, e.g. generation or transmission thereof
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H30/00—ICT specially adapted for the handling or processing of medical images
    • G16H30/40—ICT specially adapted for the handling or processing of medical images for processing medical images, e.g. editing
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H50/00—ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics
    • G16H50/20—ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for computer-aided diagnosis, e.g. based on medical expert systems
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H50/00—ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics
    • G16H50/50—ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for simulation or modelling of medical disorders
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/107—Measuring physical dimensions, e.g. size of the entire body or parts thereof
    • A61B5/1075—Measuring physical dimensions, e.g. size of the entire body or parts thereof for measuring dimensions by non-invasive methods, e.g. for determining thickness of tissue layer
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
    • A61B5/7271—Specific aspects of physiological measurement analysis
    • A61B5/7285—Specific aspects of physiological measurement analysis for synchronising or triggering a physiological measurement or image acquisition with a physiological event or waveform, e.g. an ECG signal
    • A61B5/7289—Retrospective gating, i.e. associating measured signals or images with a physiological event after the actual measurement or image acquisition, e.g. by simultaneously recording an additional physiological signal during the measurement or image acquisition
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
    • A61B6/50—Clinical applications
    • A61B6/503—Clinical applications involving diagnosis of heart
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/48—Diagnostic techniques
    • A61B8/488—Diagnostic techniques involving Doppler signals

Abstract

A digital image processing system for enhancing the image quality and diagnostic capabilities of conventional medical diagnostic ultrasound imaging systems and, more particularly, to an echocardiography workstation (10) which provides speckle reduction (200), edge detection, color quantitation (306), automatic diagnostic features, a built-in Help system for echocardiography, automatic quantitative analysis of left ventricular function, tomographic perfusion display (36), 3-D analysis, and report generation for improved analysis of echocardiograms.
PCT/US1999/006999 1998-03-30 1999-03-30 Echocardiography workstation WO1999049775A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US09/647,438 US6674879B1 (en) 1998-03-30 1999-03-30 Echocardiography workstation
AU34579/99A AU3457999A (en) 1998-03-30 1999-03-30 Echocardiography workstation
CA002326596A CA2326596A1 (en) 1998-03-30 1999-03-30 Echocardiography workstation
EP99916218A EP1090372A2 (en) 1998-03-30 1999-03-30 Echocardiography workstation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US7997298P 1998-03-30 1998-03-30
US60/079,972 1998-03-30

Publications (2)

Publication Number Publication Date
WO1999049775A2 WO1999049775A2 (en) 1999-10-07
WO1999049775A3 true WO1999049775A3 (en) 1999-12-16

Family

ID=22153981

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/006999 WO1999049775A2 (en) 1998-03-30 1999-03-30 Echocardiography workstation

Country Status (4)

Country Link
EP (1) EP1090372A2 (en)
AU (1) AU3457999A (en)
CA (1) CA2326596A1 (en)
WO (1) WO1999049775A2 (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2001253490A1 (en) * 2000-04-13 2001-10-30 The Trustees Of Columbia University In The City Of New York Method and apparatus for processing echocardiogram video images
EP1410329A2 (en) * 2001-06-29 2004-04-21 Nanoptics, Inc. Method and apparatus for image processing and display
US20050010098A1 (en) * 2003-04-11 2005-01-13 Sigmund Frigstad Method and apparatus for knowledge based diagnostic imaging
JP2007526016A (en) * 2003-06-25 2007-09-13 シーメンス　メディカル　ソリューションズ　ユーエスエー　インコーポレイテッド System and method for automatic local myocardial assessment of cardiac imaging
JP2007502469A (en) 2003-08-13 2007-02-08 シーメンス　メディカル　ソリューションズ　ユーエスエー　インコーポレイテッド System and method for supporting CAD (computer aided diagnosis)
ATE550680T1 (en) * 2003-09-30 2012-04-15 Esaote Spa METHOD FOR POSITION AND VELOCITY TRACKING OF AN OBJECT EDGE IN TWO OR THREE DIMENSIONAL DIGITAL ECHOGRAPHIC IMAGES
US7653227B2 (en) 2004-02-09 2010-01-26 Siemens Medical Solutions Usa, Inc. Hierarchical modeling in medical abnormality detection
US20060034538A1 (en) * 2004-07-23 2006-02-16 Agfa Corporation Method and system of automating echocardiogram measurements and reporting
CN101170948B (en) * 2005-05-19 2010-09-08 株式会社日立医药 Ultrasonographic device and image processing method thereof
US8471866B2 (en) 2006-05-05 2013-06-25 General Electric Company User interface and method for identifying related information displayed in an ultrasound system
US8061360B2 (en) 2006-09-19 2011-11-22 Kci Licensing, Inc. System and method for locating fluid leaks at a drape of a reduced pressure delivery system
MX2009002948A (en) 2006-09-19 2009-03-31 Kci Licensing Inc Reduced pressure treatment system having blockage clearing and dual-zone pressure protection capabilities.
US8366690B2 (en) 2006-09-19 2013-02-05 Kci Licensing, Inc. System and method for determining a fill status of a canister of fluid in a reduced pressure treatment system
US8725528B2 (en) * 2006-09-19 2014-05-13 Kci Licensing, Inc. System and method for managing history of patient and wound therapy treatment
WO2008034182A1 (en) * 2006-09-20 2008-03-27 Apollo Medical Imaging Technology Pty Ltd Method and system of automated image processing - one click perfusion
WO2008121930A1 (en) * 2007-03-29 2008-10-09 Nesticon, Llc Creating a report having computer generated narrative text
KR20090095150A (en) * 2008-03-05 2009-09-09 주식회사 메디슨 Ultrasound system and methdo for processing ultrasound image
US10078893B2 (en) 2010-12-29 2018-09-18 Dia Imaging Analysis Ltd Automatic left ventricular function evaluation
KR20140002997A (en) * 2012-06-28 2014-01-09 삼성메디슨 주식회사 Diagnosis image apparatus and operating method thereof
US11308609B2 (en) * 2019-12-04 2022-04-19 GE Precision Healthcare LLC System and methods for sequential scan parameter selection
JP7328156B2 (en) * 2020-01-22 2023-08-16 キヤノンメディカルシステムズ株式会社 Ultrasound diagnostic equipment, medical image processing equipment, and medical image processing program
CN117379098A (en) * 2023-10-17 2024-01-12 齐齐哈尔医学院 Heart ultrasonic image enhancement system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4730212A (en) * 1984-01-04 1988-03-08 Itek Corporation Realtime digital diagnostic image processing system
US4770184A (en) * 1985-12-17 1988-09-13 Washington Research Foundation Ultrasonic doppler diagnostic system using pattern recognition
US4771792A (en) * 1985-02-19 1988-09-20 Seale Joseph B Non-invasive determination of mechanical characteristics in the body
US5235510A (en) * 1990-11-22 1993-08-10 Kabushiki Kaisha Toshiba Computer-aided diagnosis system for medical use
US5381791A (en) * 1992-03-10 1995-01-17 Siemens Medical Systems, Inc. Automatic indentification of anatomical features of interest from data acquired in nuclear medicine studies and automatic positioning of scintillation cameras to carry out such studies at optimal positions
US5416602A (en) * 1992-07-20 1995-05-16 Automated Medical Access Corp. Medical image system with progressive resolution
US5644612A (en) * 1993-01-25 1997-07-01 Cardiac Mariners, Inc. Image reconstruction methods

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4730212A (en) * 1984-01-04 1988-03-08 Itek Corporation Realtime digital diagnostic image processing system
US4771792A (en) * 1985-02-19 1988-09-20 Seale Joseph B Non-invasive determination of mechanical characteristics in the body
US4770184A (en) * 1985-12-17 1988-09-13 Washington Research Foundation Ultrasonic doppler diagnostic system using pattern recognition
US5235510A (en) * 1990-11-22 1993-08-10 Kabushiki Kaisha Toshiba Computer-aided diagnosis system for medical use
US5381791A (en) * 1992-03-10 1995-01-17 Siemens Medical Systems, Inc. Automatic indentification of anatomical features of interest from data acquired in nuclear medicine studies and automatic positioning of scintillation cameras to carry out such studies at optimal positions
US5416602A (en) * 1992-07-20 1995-05-16 Automated Medical Access Corp. Medical image system with progressive resolution
US5644612A (en) * 1993-01-25 1997-07-01 Cardiac Mariners, Inc. Image reconstruction methods

Also Published As

Publication number Publication date
WO1999049775A2 (en) 1999-10-07
EP1090372A2 (en) 2001-04-11
AU3457999A (en) 1999-10-18
CA2326596A1 (en) 1999-10-07

Similar Documents

Publication Publication Date Title
WO1999049775A3 (en) Echocardiography workstation
EP0881506A3 (en) Three dimensional M-mode ultrasonic diagnostic imaging system
CN1593349B (en) Systems and methods for implementing a speckle reduction filter
EP0592967B1 (en) Ultrasonic tissue imaging method and apparatus with doppler velocity and acceleration processing
EP0882426A3 (en) Ultrasonic imaging apparatus and method for breast cancer diagnosis
US8792690B2 (en) Enhancing quality of ultrasound spatial compound image based on beam profile in ultrasound system
EP0797106A3 (en) Three dimensional medical ultrasonic diagnostic imaging of tissue texture and vasculature
WO2006090309A3 (en) Ultrasonic diagnostic imaging system and method for detecting lesions of the liver
AU5112998A (en) Enhanced image processing for a three-dimensional imaging system
WO2002041780A3 (en) 3d planning target volume
EP0885594A3 (en) Intravascular ultrasound enhanced image and signal processing
DE60238942D1 (en) ULTRASONIC IMAGING SYSTEM AND METHOD
EP1739627B1 (en) Method and apparatus for displaying a color flow image in an ultrasound diagnostic system
US20060084870A1 (en) Ultrasound diagnostic system for providing elastic image with additional information
WO1999013762A3 (en) Clinical tissue examination
EP1777544A3 (en) Image processing apparatus
TW348237B (en) Ultrasonic diagnostic imaging system with universal access to diagnostic information and images
GB2415589A (en) X-ray scanning system
AU6979198A (en) Ultrasonic diagnostic imaging system with doppler assisted tracking of tissue motion
EP2158845A1 (en) Adaptive color doppler image formation
FR2426911A1 (en) ULTRASONIC IMAGING SYSTEM
US20090177086A1 (en) Method and apparatus for selectively enhancing ultrasound image data
AU2003209574A1 (en) Diagnostic ultrasonic imaging system having combined scanhead connections
EP2157442A1 (en) Formation of an elastic image in an ultrasound system
EP1145041A3 (en) Ultrasonic diagnostic imaging system with high frame rate synthetic transmit focus

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW SD SL SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
AK Designated states

Kind code of ref document: A3

Designated state(s): AE AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): GH GM KE LS MW SD SL SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
ENP Entry into the national phase

Ref document number: 2326596

Country of ref document: CA

Ref country code: CA

Ref document number: 2326596

Kind code of ref document: A

Format of ref document f/p: F

NENP Non-entry into the national phase

Ref country code: KR

WWE Wipo information: entry into national phase

Ref document number: 09647438

Country of ref document: US

WWE Wipo information: entry into national phase

Ref document number: 1999916218

Country of ref document: EP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

WWP Wipo information: published in national office

Ref document number: 1999916218

Country of ref document: EP

WWW Wipo information: withdrawn in national office

Ref document number: 1999916218

Country of ref document: EP