JPH06507485A - 信号処理装置および方法 - Google Patents
信号処理装置および方法Info
- Publication number
- JPH06507485A JPH06507485A JP4507451A JP50745192A JPH06507485A JP H06507485 A JPH06507485 A JP H06507485A JP 4507451 A JP4507451 A JP 4507451A JP 50745192 A JP50745192 A JP 50745192A JP H06507485 A JPH06507485 A JP H06507485A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue
- A61B5/1455—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
- A61B5/14551—Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue using optical sensors, e.g. spectral photometrical oximeters for measuring blood gases
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- 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
- A61B5/7203—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal
- A61B5/7207—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal of noise induced by motion artifacts
- A61B5/7214—Signal processing specially adapted for physiological signals or for diagnostic purposes for noise prevention, reduction or removal of noise induced by motion artifacts using signal cancellation, e.g. based on input of two identical physiological sensors spaced apart, or based on two signals derived from the same sensor, for different optical wavelengths
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- 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
- A61B5/7228—Signal modulation applied to the input signal sent to patient or subject; Demodulation to recover the physiological signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
- H04B1/12—Neutralising, balancing, or compensation arrangements
- H04B1/123—Neutralising, balancing, or compensation arrangements using adaptive balancing or compensation means
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2218/00—Aspects of pattern recognition specially adapted for signal processing
- G06F2218/02—Preprocessing
- G06F2218/04—Denoising
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Veterinary Medicine (AREA)
- Surgery (AREA)
- Biophysics (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Pathology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Psychiatry (AREA)
- Physiology (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Artificial Intelligence (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Optics & Photonics (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Communication Control (AREA)
- Radar Systems Or Details Thereof (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
- Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
- Complex Calculations (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
- Noise Elimination (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
Description
Claims (40)
- 1.信号プロセッサであって、 第1の伝播経路に沿って動く第1の信号および第2の伝播経路に沿って動く第2 の信号を受け取るための検出器を含み、前記第1および第2の伝播経路の一部分 が伝播媒体内に位置し、前記第1の信号が第1の所望される信号部分および第1 の所望されない信号部分を有し、かつ前記第2の信号が第2の所望される信号部 分および第2の所望されない信号部分を有し、前記第1および第2の所望されな い信号部分が前記伝播媒体の摂動の結果であり、さらに、 前記第1および第2の信号を受け取るための入力を有する基準プロセッサを含み 、前記プロセッサが前記第1および第2の信号を結合するべく適合されて、前記 第1および前記第2の所望されない信号部分の関数である主要成分を有する基準 信号を生成する、信号プロセッサ。
- 2.前記基準信号および前記第1の信号を受け取り、かつ前記第1の信号の前記 第1の所望される信号部分の関数である主要成分を有する出力信号をそこから引 き出すための適応信号プロセッサをさらに含む、請求項1に記載の信号プロセッ サ。
- 3.前記基準信号および前記第2の信号を受け取り、かっ前記第2の信号の前記 第2の所望される信号部分の関数である主要成分を有する出力信号をそこから引 き出すための適応信号プロセッサをさらに含む、請求項1に記載の信号プロセッ サ。
- 4.前記適応信号プロセッサが適応ノイズキャンセラを含む、請求項2に記載の 信号プロセッサ。
- 5.前記適応ノイズキャンセラがジョイントプロセスエスティメータを含む、請 求項4に記載の信号プロセッサ。
- 6.前記ジョイントプロセスエスティメータが最小自乗格子プリディクタおよび 回帰フィルタを含む、請求項5に記載の信号プロセッサ。
- 7.前記検出器が生理学的機能を検知するためのセンサをさらに含む、請求項1 に記載の信号プロセッサ。
- 8.前記センサが感光素子を含む、請求項7に記載の信号プロセッサ。
- 9.生体の酸素飽和度を測定するためのパルスオキシメータをさらに含む、請求 項7に記載の信号プロセッサ。
- 10.生理学的モニター装置であって、第1の伝播経路に沿って動く第1の生理 学的測定信号および第2の伝播経路に沿って動く第2の生理学的測定信号を受け 取るための検出器を含み、前記第1および第2の伝播経路の一部分が伝播媒体内 に位置し、前記第1の信号が第1の所望される信号部分および第1の所望されな い信号部分を有し、かつ前記第2の信号が第2の所望される信号部分および第2 の所望されない信号部分を有し、 さらに、 前記第1および第2の信号を受け取るための入力を有する基準プロセッサを含み 、前記プロセッサが前記第1および第2の信号を結合するべく適合されて、前記 第1および前記第2の所望されない信号部分の関数である主要成分を有する基準 信号を生成する、生理学的モニター装置。
- 11.前記基準信号および前記第1の信号を受け取り、かつ前記第1の信号の前 記第1の所望される信号部分の関数である主要成分を有する出力信号をそこから 引き出すための適応信号プロセッサをさらに含む、請求項10に記載の装置。
- 12.前記基準信号および前記第2の信号を受け取り、かつ前記第2の信号の前 記第2の所望される信号部分の関数である主要成分を有する出力信号をそこから 引き出すための適応信号プロセッサをさらに含む、請求項10に記載の装置。
- 13.前記適応信号プロセッサが適応ノイズキャンセラを含む、請求項11に記 載の装置。
- 14.前記適応ノイズキャンセラがジョイントプロセスエスティメータを含む、 請求項13に記載の装置。
- 15.前記ジョイントプロセスエスティメータか最小自乗格子プリディクタおよ び回帰フィルタを含む、請求項14に記載の装置。
- 16.前記検出器が感光素子をさらに含む、請求項10に記載の装置。
- 17.パルスオキシメータをさらに含む、請求項10に記載の装置。
- 18.血液成分を測定するための装置であって、複数の予め定められた波長の電 磁エネルギを標本に向けるためのエネルギ源と、 前記複数の予め定められた波長の電磁エネルギを前記標本から受け取り、かつそ れに応答して前記予め定められた波長に対応する電気信号を生成するための検出 器とを含み、少なくとも2つの前記電気信号の各々が所望される信号部分および 所望されない信号部分を有し、さらに前記電気信号を受け取るための入力を有す る基準プロセッサを含み、前記プロセッサが前記電気信号を結合するべく形成さ れて、前記所望されない信号部分から引き出される主要成分を有する基準信号を 生成する、装置。
- 19.前記基準信号および前記少なくとも2つの前記電気信号の1つを受け取り 、かつ前記電気信号の前記所望される信号部分の関数である主要成分を有する出 力信号をそこから引き出すための適応信号プロセッサをさらに含む、請求項18 に記載の装置。
- 20.前記適応信号プロセッサが適応ノイズキャンセラを含む、請求項19に記 載の装置。
- 21.前記適応ノイズキャンセラがジョイントプロセスエスティメータを含む、 請求項20に記載の装置。
- 22.前記ジョイントプロセスエスティメータが最小自乗格子プリディクタおよ び回帰フィルタを含む、請求項21に記載の装置。
- 23.体内の血液成分の非観血的測定のための血液ガスモニターであって、 少なくとも2つの予め定められた波長の光を体に向けるための光源と、 前記光を前記体から受け取り、かつそれに応答して、前記少なくとも2つの予め 定められた波長の光に対応する少なくとも2つの電気信号を生成するための検出 器とを含み、前記少なくとも2つの電気信号の各々が所望される信号部分および 所望されない信号部分を有し、さらに前記少なくとも2つの電気信号を受け取る ための入力を有する基準プロセッサを含み、前記プロセッサが前記少なくとも2 つの電気信号を結合するべく適合されて、前記所望されない信号部分から引き出 される主要成分を有する基準信号を生成する、血液ガスモニター。
- 24.前記基準信号および前記2の電気信号を受け取り、かつ前記電気信号の前 記所望される信号部分に対してそれぞれ実質的に等しい少なくとも2つの出力信 号をそこから引き出すための適応信号プロセッサをさらに含む、請求項23に記 載の血液ガスモニター。
- 25.前記適応信号プロセッサが適応ノイズキャンセラを含む、請求項24に記 載の血液ガスモニター。
- 26.前記適応ノイズキャンセラがジョイントプロセスエスティメータを含む、 請求項25に記載の血液ガスモニター。
- 27.前記ジョイントプロセスエスティメータが最小自乗格子プリディクタおよ び回帰フィルタを含む、請求項26に記載の血液ガスモニター。
- 28.第1の所望される信号部分および第1のノイズ部分を含む第1の信号、な らびに第2の所望される信号部分および第2のノイズ部分を含む第2の信号から ノイズ基準信号を決定するための方法であって、 前記第1の所望される信号部分の予め定められた属性および前記第2の所望され る信号部分の予め定められた属性の比率に比例する信号係数を選択するステップ と、前記第1の信号および前記信号係数を信号乗算器に入力するステップとを含 み、前記第1の信号が前記信号係数により乗算され、それにより第1の中間信号 を生成し、さらに、 前記第2の信号および前記第1の中間信号を信号減算器に入力するステップを含 み、前記第1の中間信号が前記第2の信号から減算され、それにより前記第1お よび第2のノイズ信号部分から引き出される主要成分を有するノイズ基準信号を 生成する、方法。
- 29.前記第1および第2の信号が吸収媒体により透過される光エネルギから引 き出される、請求項28に記載の装置。
- 30.生理学的モニター装置であって、第1の所望される信号部分および第1の 所望されない信号部分を含む第1の信号、ならびに第2の所望される信号部分お よび第2の所望されない信号部分を含む第2の信号を得るための手段と、 前記第1および第2の信号からノイズ基準信号を決定するための手段と、 前記ノイズ基準信号を受け取るためのノイズ基準入力および前記第1の信号を受 け取るための信号入力を有する適応ノイズキャンセラとを含み、前記適応ノイズ キャンセラが、実時間または実時間に近い時間で、前記第1の所望される信号部 分に近似する出力信号を生成する、生理学的モニター装置。
- 31.前記適応ノイズキャンセラがジョイントプロセスエスティメータをさらに 含む、請求項30に記載の生理学的モニター装置。
- 32.前記ジョイントプロセスエスティメータが回帰フィルタとともに最小自乗 格子プリディクタをさらに含む、請求項31に記載の生理学的モニター装置。
- 33.信号振幅コンプリケートフィーチャーを有する振幅変調信号を処理するた めの装置であって、電磁エネルギを標本に向けるためのエネルギ源と、第1の振 幅変調信号および第2の振幅変調信号を得るための検出器とを含み、前記第1お よび第2の信号の各々が、標本による電磁エネルギの減衰についての情報を含む 成分および信号振幅コンプリケートフィーチャーを有し、さらに、 前記第1および第2の振幅変調信号を受け取り、かつ信号振幅コンプリケートフ ィーチャーと相関するノイズ基準信号をそこから引き出すための基準プロセッサ と、前記第1の振幅変調信号を受け取るための信号入力および前記ノイズ基準信 号を受け取るためのノイズ基準入力を有する適応ノイズキャンセラとを含み、前 記適応ノイズキャンセラが、標本による電磁エネルギの減衰についての情報を含 む前記成分から引き出される主要成分を有する出力信号を生成する、装置。
- 34.前記適応ノイズキャンセラがジョイントプロセスエスティメータをさらに 含む、請求項33に記載の装置。
- 35.前記ジョイントプロセスエスティメータが回帰フィルタとともに最小自乗 格子プリディクタをさらに含む、請求項34に記載の装置。
- 36.プレチスモグラフの波形を信号振幅コンブリケートフィーチャーを有する 振幅変調信号から抽出するための装置であって、 光を生体に送るための光源と、 光を前記生体からモニタして、第1の光減衰信号および第2の光減衰信号を生成 するための検出器とを含み、前記第1および第2の光減衰信号の各々が、プレチ スモグラフの波形を表わす成分および信号振幅コンプリケートフィーチャーを表 わす成分を有し、 前記第1および第2の光減衰信号を受け取り、かつそこからノイズ基準信号を引 き出すための基準プロセッサを含み、前記ノイズ基準信号および前記信号振幅コ ンプリケートフィーチャーの各々が周波数スペクトルを有し、前記ノイズ基準信 号の前記周波数スペクトルが前記信号振幅コンプリケートフィーチャーの周波数 スペクトルと相関し、さらに、 前記第1の減衰信号を受け取るための信号入力および前記ノイズ基準信号を受け 取るためのノイズ基準入力を有する適応ノイズキャンセラを含み、前記適応ノイ ズキャンセラが、プレチスモグラフの波形を表わす前記成分から引き出される主 要成分を有する出力信号を生成する、装置。
- 37.前記適応ノイズキャンセラがジョイントプロセスエスティメータをさらに 含む、請求項36に記載の装置。
- 38.前記ジョイントプロセスエスティメータが回帰フィルタとともに最小自乗 格子プリディクタをさらに含む、請求項37に記載の装置。
- 39.動きアーチファクト信号を生理学的測定から引き出される信号から除去す るための方法であって、生理学的測定成分および動きアーチファクト成分を有す る第1の信号、ならびに生理学的測定成分および動きアーチファクト成分を有す る第2の信号を得るステップと、前記第1および第2の信号から、前記第1およ び第2の信号の動きアーチファクト成分の1次関数である動きアーチファクトノ イズ基準信号を引き出すステップとを含む、方法。
- 40.前記動きアーチファクトノイズ基準信号を適応ノイズキャンセラに入力し て、前記第1の信号の生理学的測定成分の1次関数である出力信号を生成するス テップをさらに含む、請求項39に記載の方法。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US66606091A | 1991-03-07 | 1991-03-07 | |
| US666,060 | 1991-03-07 | ||
| PCT/US1992/001895 WO1992015955A1 (en) | 1991-03-07 | 1992-03-05 | Signal processing apparatus and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06507485A true JPH06507485A (ja) | 1994-08-25 |
| JP3363150B2 JP3363150B2 (ja) | 2003-01-08 |
Family
ID=24672658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP50745192A Expired - Lifetime JP3363150B2 (ja) | 1991-03-07 | 1992-03-05 | パルスオキシメータおよびパルスオキシメータの中のプロセッサ |
Country Status (9)
| Country | Link |
|---|---|
| US (8) | US5482036A (ja) |
| EP (3) | EP1357481A3 (ja) |
| JP (1) | JP3363150B2 (ja) |
| AT (1) | ATE184716T1 (ja) |
| AU (1) | AU658177B2 (ja) |
| CA (1) | CA2105682C (ja) |
| DE (1) | DE69229994T2 (ja) |
| RU (1) | RU2144211C1 (ja) |
| WO (1) | WO1992015955A1 (ja) |
Cited By (7)
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|---|---|---|---|---|
| JP2003265446A (ja) * | 2002-03-16 | 2003-09-24 | Samsung Electronics Co Ltd | 光を利用した診断方法及び装置 |
| JP2006502781A (ja) * | 2002-10-15 | 2006-01-26 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 灌流の変化に関する情報の表示方法 |
| JP2007523732A (ja) * | 2004-02-25 | 2007-08-23 | ネルコアー ピューリタン ベネット インコーポレイテッド | 心拍を検出し、センサにおける電力消費を減少させるための技術 |
| JP2007523727A (ja) * | 2004-02-25 | 2007-08-23 | ネルコアー ピューリタン ベネット インコーポレイテッド | シグマ−デルタ変調を用いたマルチビットadc |
| JP2009039548A (ja) * | 1991-03-07 | 2009-02-26 | Masimo Corp | 信号処理装置 |
| JP2010512208A (ja) * | 2006-12-11 | 2010-04-22 | ツェーエンシステムズ・メディツィーンテヒニーク・ゲー・エム・ベー・ハー | 動脈圧の連続非観血式測定のための装置とその利用法 |
| JP2012519542A (ja) * | 2009-03-06 | 2012-08-30 | ケアフュージョン 207、インコーポレーション | 自動酸素運搬システム |
Families Citing this family (893)
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- 1992-03-05 DE DE69229994T patent/DE69229994T2/de not_active Expired - Lifetime
- 1992-03-05 AU AU15369/92A patent/AU658177B2/en not_active Expired
- 1992-03-05 EP EP03015656A patent/EP1357481A3/en not_active Withdrawn
- 1992-03-05 EP EP99103974A patent/EP0930045A3/en not_active Withdrawn
- 1992-03-05 RU RU93058616A patent/RU2144211C1/ru active
- 1992-03-05 JP JP50745192A patent/JP3363150B2/ja not_active Expired - Lifetime
- 1992-03-05 WO PCT/US1992/001895 patent/WO1992015955A1/en not_active Ceased
- 1992-03-05 EP EP92907861A patent/EP0574509B1/en not_active Expired - Lifetime
- 1992-03-05 CA CA002105682A patent/CA2105682C/en not_active Expired - Lifetime
-
1994
- 1994-05-26 US US08/249,690 patent/US5482036A/en not_active Expired - Lifetime
-
1995
- 1995-06-07 US US08/479,918 patent/US5769785A/en not_active Expired - Lifetime
-
1998
- 1998-06-22 US US09/102,131 patent/US6036642A/en not_active Ceased
-
1999
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-
2001
- 2001-01-09 US US09/757,444 patent/US6501975B2/en not_active Expired - Fee Related
-
2002
- 2002-03-11 US US10/095,586 patent/USRE38492E1/en not_active Expired - Fee Related
- 2002-12-20 US US10/327,234 patent/US6826419B2/en not_active Expired - Fee Related
-
2004
- 2004-05-04 US US10/839,309 patent/US20040204638A1/en not_active Abandoned
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009039548A (ja) * | 1991-03-07 | 2009-02-26 | Masimo Corp | 信号処理装置 |
| JP2003265446A (ja) * | 2002-03-16 | 2003-09-24 | Samsung Electronics Co Ltd | 光を利用した診断方法及び装置 |
| US6990426B2 (en) | 2002-03-16 | 2006-01-24 | Samsung Electronics Co., Ltd. | Diagnostic method and apparatus using light |
| JP2006502781A (ja) * | 2002-10-15 | 2006-01-26 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 灌流の変化に関する情報の表示方法 |
| JP2007523732A (ja) * | 2004-02-25 | 2007-08-23 | ネルコアー ピューリタン ベネット インコーポレイテッド | 心拍を検出し、センサにおける電力消費を減少させるための技術 |
| JP2007523727A (ja) * | 2004-02-25 | 2007-08-23 | ネルコアー ピューリタン ベネット インコーポレイテッド | シグマ−デルタ変調を用いたマルチビットadc |
| JP4756027B2 (ja) * | 2004-02-25 | 2011-08-24 | ネルコー ピューリタン ベネット エルエルシー | 心拍を検出し、センサにおける電力消費を減少させるための技術 |
| JP2010512208A (ja) * | 2006-12-11 | 2010-04-22 | ツェーエンシステムズ・メディツィーンテヒニーク・ゲー・エム・ベー・ハー | 動脈圧の連続非観血式測定のための装置とその利用法 |
| JP2012519542A (ja) * | 2009-03-06 | 2012-08-30 | ケアフュージョン 207、インコーポレーション | 自動酸素運搬システム |
Also Published As
| Publication number | Publication date |
|---|---|
| US6501975B2 (en) | 2002-12-31 |
| US6826419B2 (en) | 2004-11-30 |
| EP1357481A2 (en) | 2003-10-29 |
| EP0930045A2 (en) | 1999-07-21 |
| EP0574509B1 (en) | 1999-09-15 |
| US5482036A (en) | 1996-01-09 |
| EP0930045A3 (en) | 1999-10-27 |
| RU2144211C1 (ru) | 2000-01-10 |
| CA2105682A1 (en) | 1992-09-08 |
| DE69229994T2 (de) | 2000-04-27 |
| ATE184716T1 (de) | 1999-10-15 |
| US5769785A (en) | 1998-06-23 |
| US6036642A (en) | 2000-03-14 |
| JP3363150B2 (ja) | 2003-01-08 |
| AU658177B2 (en) | 1995-04-06 |
| US20010029326A1 (en) | 2001-10-11 |
| EP0574509A1 (en) | 1993-12-22 |
| EP1357481A3 (en) | 2005-04-27 |
| USRE38492E1 (en) | 2004-04-06 |
| WO1992015955A1 (en) | 1992-09-17 |
| CA2105682C (en) | 2003-09-02 |
| US6206830B1 (en) | 2001-03-27 |
| US20040204638A1 (en) | 2004-10-14 |
| US20030097049A1 (en) | 2003-05-22 |
| DE69229994D1 (de) | 1999-10-21 |
| AU1536992A (en) | 1992-10-06 |
| EP0574509A4 (en) | 1996-07-31 |
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