JP5491553B2 - 携帯型注入ポンプにおける閉塞を検出する方法および装置 - Google Patents
携帯型注入ポンプにおける閉塞を検出する方法および装置 Download PDFInfo
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- 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
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- 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
- A61M5/142—Pressure infusion, e.g. using pumps
- A61M5/145—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
- A61M5/1452—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons
- A61M5/14566—Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons with a replaceable reservoir for receiving a piston rod of the pump
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- 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
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- 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
- A61M5/142—Pressure infusion, e.g. using pumps
- A61M5/14244—Pressure infusion, e.g. using pumps adapted to be carried by the patient, e.g. portable on the body
- A61M2005/14264—Pressure infusion, e.g. using pumps adapted to be carried by the patient, e.g. portable on the body with means for compensating influence from the environment
-
- 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
- A61M2005/16863—Occlusion detection
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/18—General characteristics of the apparatus with alarm
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/332—Force measuring means
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3331—Pressure; Flow
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/70—General characteristics of the apparatus with testing or calibration facilities
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
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- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (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)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Description
102,203,2304 親ねじ
103 駆動ナット
104 ピストン
105,206,301,715,2308 貯槽
106,207,2310 注入セット
107,208,302,401 筐体
110 掛止アーム
201a,432,2302 駆動軸
202,906,2405 歯車
204 プランジャ滑動部
205 貯槽ピストン
209,2305 軸受
303,1404,1802 ピストン部材
304 ピストンヘッド
305 回転駆動ねじ
306 駆動モータ
402 下方区間
404 駆動ねじ(第1駆動部材)
405 プランジャ滑動部(第2駆動部材)
406 バイアルまたは貯槽
407 プランジャまたはピストン組立体
409 Oリング封止体
410 回転防止キー
412 システムコンプライアンス取付け
420 電源
422 電子制御回路
424 雌部分
426 雄部分
428 ピストン組立体の端面
430 プランジャ滑動部の端部
431 コネクタ
433 コネクタのねじ山
434 回転防止スロット
436 長方形タブ
440 貯槽ピストン組立体の移動軸
442 リング(カラー)
701 注入ポンプ
706 センサ
711,2306 滑動部
712 雄ねじ山
713 雌ねじ山
714,2307 ストッパ
2303 歯車の組
2309 管系
2402 モータケース
2403,2404 近位軸受
2406 梁
2407 歪みゲージセンサ
2408 モータ軸
2409 筐体繋止点
2410 繋止点
2701,2901 開始ブロック
2702 第1ポンプ値を測定するブロック
2703 第2ポンプ値を測定するブロック
2704,2905 閉塞を検出するブロック
2705,2906 閉塞を示すブロック
2706,2907 注入を継続するブロック
2902 一連のポンプ値を測定するブロック
2903 一連のポンプ値のピーク値を決定するブロック
2904 ピーク値よりも後の第2値を決定するブロック
Claims (11)
- 流体を使用者の体内に注入する、モータと1つまたは複数の駆動列構成要素とを具備する駆動機構を有する注入ポンプ中の閉塞を検出する方法であって、
一連の測定値を入手するために、注入流体の電流パルスを送達する間に前記モータまたは前記駆動列構成要素の1つに関連するパラメータを定期的に測定する段階と、
前記一連の測定値のピーク値を求める段階と、
前記ピーク値よりも後の前記一連の測定値の中で第2値を選択する段階と、
前記ピーク値、前記第2値、および閾値に基づいて閉塞が発生したかどうかを判定する段階と、
前記ピーク値と前記第2値との間の電流差を計算する段階と、
先行するピーク値と、注入流体の先行するパルスを送達する間に前記パラメータの測定値に基づいて計算された、前記先行するピーク値よりも後の先行する第2値との間の先行する差を取り出す段階と、
前記先行する差と前記電流差との間の平均差を計算する段階とを含み、
閉塞が発生したかどうかを前記判定する段階は、前記平均差が前記閾値を超えれば閉塞が発生したことを示す段階を含み、
前記閾値は、注入流体の前記電流パルスを前記送達する前に、注入流体の少なくとも1つの先行するパルスを送達する間に前記モータまたは前記駆動列構成要素の1つに関連する前記パラメータの測定値に基づいて、動的に更新される
方法。 - 前記モータまたは前記駆動列構成要素の1つに関連するパラメータを前記測定する段階は、注入流体の前記パルスを前記送達する間継続する、請求項1に記載の方法。
- 前記モータまたは前記駆動列構成要素の1つに関連する前記パラメータは、力である、請求項1に記載の方法。
- 平均差を前記計算する段階は、注入流体の第2の先行するパルスを送達する間に前記パラメータの測定値に基づいて計算された第2の先行する差を使用する段階をさらに含む、請求項1に記載の方法。
- 前記平均差は、注入流体の3つの連続パルスを送達する間に前記パラメータの測定値に基づいて計算される、請求項4に記載の方法。
- 流体を貯槽から使用者の体内に注入する注入ポンプであって、
筐体と、
前記筐体内部に収容されたモータと、
前記筐体内部の前記モータに接続され、流体を前記貯槽から流体通路を介して前記使用者の体内に送達するために、前記モータに応答して移動するように構成された1つまたは複数の駆動列構成要素と、
一連の測定値を入手するために、注入流体の電流パルスを送達する間に前記モータまたは前記駆動列構成要素の1つに関連するパラメータを定期的に測定するように構成されたセンサと、
前記筐体に内蔵されて、前記一連の測定値のピーク値を求め、前記一連の測定値から前記ピーク値よりも後の第2値を選択し、かつ前記ピーク値、前記第2値、および閾値を使用して前記注入ポンプの前記流体通路中に閉塞が発生したかどうかを判定するプロセッサとを備え、
前記プロセッサは、
ピーク値と前記第2値との間の電流差を計算し、
先行するピーク値と、注入流体の先行するパルスを送達する間に前記パラメータの測定値に基づいて計算された、前記先行するピーク値よりも後の先行する第2値との間の先行する差を取り出し、
前記先行する差と前記電流差との間の平均差をさらに計算し、
閉塞が発生したかどうかを前記平均差が前記閾値を超えれば閉塞が発生したことによって判定し、
注入流体の前記電流パルスを前記送達する前に、注入流体の少なくとも1つの先行するパルスを送達する間に前記モータまたは前記駆動列構成要素の1つに関連する前記パラメータの測定値に基づいて、前記閾値を動的に更新する
注入ポンプ。 - 前記モータまたは前記駆動列構成要素の1つに関連する前記パラメータは、力である、請求項6に記載の注入ポンプ。
- 前記センサは、注入流体の前記パルスを前記送達する間に前記パラメータを継続的に測定するように構成される、請求項6に記載の注入ポンプ。
- モータと1つまたは複数の駆動列構成要素とを具備する駆動機構を有する注入ポンプ中の閉塞を検出する閉塞検出システムであって、
一連の測定値を入手するために、注入流体の電流パルスを送達する間に前記モータまたは前記駆動列構成要素の1つに関連するパラメータを測定する手段と、
前記一連の測定値のピーク値を求める手段と、
前記ピーク値後の前記一連の測定値の中で第2値を選択する手段と、
前記ピーク値、前記第2値、および閾値を使用して閉塞が発生したかどうかを判定する手段と、
前記ピーク値と前記第2値との間の電流差を計算する手段と、
先行するピーク値と、注入流体の先行するパルスを送達する間に前記パラメータの測定値に基づいて計算された、前記先行するピーク値よりも後の先行する第2値との間の先行する差を取り出す手段と、
前記先行する差と前記電流差との間の平均差を計算する手段とを備え、
閉塞が発生したかどうかを前記判定する手段は、前記平均差が前記閾値を超えれば閉塞が発生したことを示す手段であり、
注入流体の前記電流パルスを前記送達する前に、注入流体の少なくとも1つの先行するパルスを送達する間に前記モータまたは前記駆動列構成要素の1つに関連する前記パラメータの測定値に基づいて、前記閾値を動的に更新する手段をさらに備える
閉塞検出システム。 - 前記モータまたは前記駆動列構成要素の1つに関連する前記パラメータは、力である、請求項9に記載の閉塞検出システム。
- 前記モータまたは前記駆動列構成要素の1つに関連するパラメータを測定する前記手段は、注入流体の前記電流パルスを前記送達する間に前記パラメータを継続的に測定する、請求項9に記載の閉塞検出システム。
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US11/323,104 | 2005-12-30 | ||
US11/323,104 US7621893B2 (en) | 1998-10-29 | 2005-12-30 | Methods and apparatuses for detecting occlusions in an ambulatory infusion pump |
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JP2013252286A Division JP5777691B2 (ja) | 2005-12-30 | 2013-12-05 | 携帯型注入ポンプにおける閉塞を検出する方法および装置 |
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JP2012165574A Expired - Fee Related JP5468112B2 (ja) | 2005-12-30 | 2012-07-26 | 携帯型注入ポンプにおける閉塞を検出する方法および装置 |
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CN104162201A (zh) * | 2006-02-09 | 2014-11-26 | 德卡产品有限公司 | 外围系统 |
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