JP2000504965A - 流体抵抗モニタリングシステム - Google Patents
流体抵抗モニタリングシステムInfo
- Publication number
- JP2000504965A JP2000504965A JP10509071A JP50907198A JP2000504965A JP 2000504965 A JP2000504965 A JP 2000504965A JP 10509071 A JP10509071 A JP 10509071A JP 50907198 A JP50907198 A JP 50907198A JP 2000504965 A JP2000504965 A JP 2000504965A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- fluid
- flow
- resistance
- time slot
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 210
- 238000012544 monitoring process Methods 0.000 title claims abstract description 23
- 230000004044 response Effects 0.000 claims abstract description 38
- 239000007924 injection Substances 0.000 claims abstract description 29
- 238000002347 injection Methods 0.000 claims abstract description 29
- 238000012545 processing Methods 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims description 77
- 238000001802 infusion Methods 0.000 claims description 37
- 230000008569 process Effects 0.000 claims description 36
- 230000001133 acceleration Effects 0.000 claims description 10
- 238000012360 testing method Methods 0.000 claims description 3
- 101150071746 Pbsn gene Proteins 0.000 claims 3
- 230000008859 change Effects 0.000 abstract description 20
- 238000012935 Averaging Methods 0.000 description 23
- 230000007246 mechanism Effects 0.000 description 23
- 238000004364 calculation method Methods 0.000 description 17
- 238000005086 pumping Methods 0.000 description 10
- 238000013459 approach Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 238000001914 filtration Methods 0.000 description 8
- 230000001052 transient effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000002572 peristaltic effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 230000003252 repetitive effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000036962 time dependent Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 206010011224 Cough Diseases 0.000 description 1
- 206010036590 Premature baby Diseases 0.000 description 1
- 108091027981 Response element Proteins 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 230000007012 clinical effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000763 evoking effect Effects 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000003978 infusion fluid Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000000968 intestinal effect Effects 0.000 description 1
- 238000001361 intraarterial administration Methods 0.000 description 1
- 238000001990 intravenous administration Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 210000004324 lymphatic system Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 206010041232 sneezing Diseases 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000002485 urinary effect Effects 0.000 description 1
- 238000009755 vacuum infusion Methods 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/168—Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
- A61M5/16831—Monitoring, detecting, signalling or eliminating infusion flow anomalies
- A61M5/16854—Monitoring, detecting, signalling or eliminating infusion flow anomalies by monitoring line pressure
- A61M5/16859—Evaluation of pressure response, e.g. to an applied pulse
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Veterinary Medicine (AREA)
- Vascular Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Flow Control (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Examining Or Testing Airtightness (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Paper (AREA)
- Emergency Alarm Devices (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Saccharide Compounds (AREA)
- Automatic Analysis And Handling Materials Therefor (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.流量制御装置が流体導管上で流体導管を通る流体のフローを制御するために 作動する、そのような流体送出システムにおけるフローに対する抵抗をモニタ ーためのシステムにおいて、導管内で感知される圧力に応えて圧力信号を提供 するための導管に連結された圧力センサーと、1コード長を有する疑似ランダ ムコードを出力し、1コード長を有する疑似ランダムコードに従ってフロー変 動のパターンにフローを生じさせるために流量制御装置を制御し、圧力信号を 受信して少なくとも圧力信号の幾つかに対して平均圧力値を定め、疑似ランダ ムコードに従って平均圧力値をデコードし、デコードされた平均圧力値をフロ ーパラメータを定めるために処理するプロセッサとから成ることを特徴とする システム。 2.前記プロセッサが、デコードされた平均圧力値を流体抵抗を定めるために処 理することを特徴とする、上記請求項1に記載のシステム。 3.前記プロセッサが、デコードされた平均圧力値を推定平衡圧力を定めるため に処理することを特徴とする、上記請求項2に記載のシステム。 4.前記疑似ランダムコードがPRBSコードであることを特徴とする、上記請 求項1に記載のシステム。 5.前記流量制御装置が複数の可動ステップをサイクル毎に有する注入装置を含 み、その各ステップが導管を通してステップ体積の流体を流し、更に前記プロ セッサが注入装置を制御して前記ステップを複数のスーパーステップにグルー プ分けし、その各スーパーステップが導管を通してスーパーステップ体積の流 体を流し、各スーパーステップ体積は他のスーパーステップ体積とほぼ等しい ことを特徴とする、上記請求項4に記載のシステム。 6.前記プロセッサが、タイムスロットをPRBSコードの各要素に割り当て、 対応するPRBS要素1を有する各タイムスロットの間に導管に少なくとも1 スーパーステップ体積の流体を流すように注入ポンプを制御し、対応するPR BS要素0を有する各タイムスロットの間には流体を流さないように注入ポン プを制御するように構成されていることを特徴とする、上記請求項5 に記載のシステム。 7.前記流量制御装置プロセッサが、加速/減速波形を使ってタイムスロットの 開始時にスーパーステップ体積の流体を単一の流体ボーラスとして送出するよ うに注入ポンプを制御するよう構成されていることを特徴とする、上記請求項 6に記載のシステム。 8.前記プロセッサが、各タイムスロットにおいてタイムスロットの開始時に2 つ又はそれ以上のスーパーステップ体積の流体を一連の2つ又はそれ以上の隣 接する流体ボーラスとして送出するように注入ポンプを制御するよう構成され ており、前記隣接する流体ボーラスは加速/減速波形を使って送出されること を特徴とする、上記請求項6に記載のシステム。 9.選択された流量を使用者が入力できる入力装置を更に含み、前記プロセッサ が選択された流量を作り出すために、選択された流量に従って、タイムスロッ ト長と、それに伴うスーパーステップ体積とを定めることを特徴とする、上記 請求項6に記載のシステム。 10.流量制御装置が流体導管上で流体導管を通る流体のフローを制御するために 作動する、そのような流体送出アッセンブリにおける少なくとも1つのフロー パラメータをモニターするためのシステムにおいて、導管内で感知される圧力 に応えて圧力信号を提供するための導管に連結された圧力センサーと、パター ンに従ってフローを発生させ、圧力信号を受信し、且つフローパラメータを求 めるためにそれらの圧力信号を処理するように流量制御装置を制御するプロセ ッサとから成ることを特徴とするシステム。 11.流量制御装置が流体導管上で流体導管を通る流体のフローを制御するために 作動する、そのような流体送出アッセンブリにおける少なくとも1つのフロー パラメータを求めるための方法において、(a)パターンに従ってフローを発 生させるよう流量制御装置を制御する段階と、(b)導管内の圧力をモニター し、モニターされた圧力に応えて信号を生成する段階と、(c)フローパラメ ータを定めるために圧力信号を処理する段階とから成ることを特徴とする方法 。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/688,673 | 1996-07-30 | ||
| US08/688,673 US6158965A (en) | 1996-07-30 | 1996-07-30 | Fluid flow resistance monitoring system |
| PCT/US1997/013256 WO1998004304A1 (en) | 1996-07-30 | 1997-07-28 | Fluid flow resistance monitoring system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000504965A true JP2000504965A (ja) | 2000-04-25 |
| JP3551974B2 JP3551974B2 (ja) | 2004-08-11 |
Family
ID=24765323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP50907198A Expired - Lifetime JP3551974B2 (ja) | 1996-07-30 | 1997-07-28 | 流体抵抗モニタリングシステム |
Country Status (9)
| Country | Link |
|---|---|
| US (2) | US6158965A (ja) |
| EP (1) | EP0923393B1 (ja) |
| JP (1) | JP3551974B2 (ja) |
| AT (1) | ATE285804T1 (ja) |
| CA (1) | CA2261001C (ja) |
| DE (2) | DE69732118D1 (ja) |
| ES (1) | ES2135362T3 (ja) |
| GR (1) | GR990300027T1 (ja) |
| WO (1) | WO1998004304A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007533381A (ja) * | 2004-04-20 | 2007-11-22 | ディセトロニック・ライセンシング・アクチェンゲゼルシャフト | 注入ポンプの閉塞を検出する装置及び方法 |
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1996
- 1996-07-30 US US08/688,673 patent/US6158965A/en not_active Expired - Lifetime
-
1997
- 1997-07-28 CA CA002261001A patent/CA2261001C/en not_active Expired - Lifetime
- 1997-07-28 DE DE69732118T patent/DE69732118D1/de not_active Expired - Lifetime
- 1997-07-28 DE DE0923393T patent/DE923393T1/de active Pending
- 1997-07-28 ES ES97935163T patent/ES2135362T3/es not_active Expired - Lifetime
- 1997-07-28 JP JP50907198A patent/JP3551974B2/ja not_active Expired - Lifetime
- 1997-07-28 GR GR990300027T patent/GR990300027T1/el unknown
- 1997-07-28 AT AT97935163T patent/ATE285804T1/de not_active IP Right Cessation
- 1997-07-28 EP EP97935163A patent/EP0923393B1/en not_active Expired - Lifetime
- 1997-07-28 WO PCT/US1997/013256 patent/WO1998004304A1/en not_active Ceased
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2000
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007533381A (ja) * | 2004-04-20 | 2007-11-22 | ディセトロニック・ライセンシング・アクチェンゲゼルシャフト | 注入ポンプの閉塞を検出する装置及び方法 |
| US7881883B2 (en) | 2004-04-20 | 2011-02-01 | Roche Diagnostics International Ag | Device and method for the detection of an occlusion |
Also Published As
| Publication number | Publication date |
|---|---|
| DE923393T1 (de) | 1999-12-09 |
| EP0923393B1 (en) | 2004-12-29 |
| ATE285804T1 (de) | 2005-01-15 |
| DE69732118D1 (de) | 2005-02-03 |
| ES2135362T1 (es) | 1999-11-01 |
| JP3551974B2 (ja) | 2004-08-11 |
| WO1998004304A1 (en) | 1998-02-05 |
| CA2261001C (en) | 2006-07-04 |
| GR990300027T1 (en) | 1999-08-31 |
| CA2261001A1 (en) | 1998-02-05 |
| ES2135362T3 (es) | 2005-07-01 |
| EP0923393A1 (en) | 1999-06-23 |
| US6158965A (en) | 2000-12-12 |
| US6416291B1 (en) | 2002-07-09 |
| HK1018015A1 (en) | 1999-12-10 |
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