JP5291003B2 - センサ装置システム、機器及び方法 - Google Patents
センサ装置システム、機器及び方法 Download PDFInfo
- Publication number
- JP5291003B2 JP5291003B2 JP2009551818A JP2009551818A JP5291003B2 JP 5291003 B2 JP5291003 B2 JP 5291003B2 JP 2009551818 A JP2009551818 A JP 2009551818A JP 2009551818 A JP2009551818 A JP 2009551818A JP 5291003 B2 JP5291003 B2 JP 5291003B2
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- JP
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- Prior art keywords
- sensor
- cassette
- fluid
- thermal
- thermal well
- 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.)
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Links
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Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/025—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms two or more plate-like pumping members in parallel
- F04B43/026—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms two or more plate-like pumping members in parallel each plate-like pumping flexible member working in its own pumping chamber
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Landscapes
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- External Artificial Organs (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Details Of Reciprocating Pumps (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Liquid Crystal (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
Description
この出願は、2007年10月12日に出願された、センサ装置システム、機器及びこの方法という標題の米国特許出願第11/871,821に一部継続し、本願は以下の米国仮特許出願について優先権を主張し、それら全体が参照として本願に組み込まれる。
2007年2月27日に出願された、血液透析システム及びこの方法という標題の米国仮特許出願第60/904,024。
2007年4月2日に出願された、センサ装置という標題の米国仮特許出願第60/921,314。
この出願は、さらに以下の米国特許出願、2007年10月12日に出願された、ポンプカセットという標題の米国特許出願第11/871,712(代理人整理NO.DEKA−020XX)、2007年10月12日に出願された、ポンプカセットという標題の米国特許出願第11/871,787(代理人整理No.DEKA−021XX)、2007年10月12日に出願された、ポンプカセットという標題の米国特許出願第11/871,793(代理人整理No.DEKA−022XX米国)、2007年10月12日に出願された、カセットシステム一体化装置という標題の米国特許出願第11/871,803(代理人整理No.DEKA−023XX)及び2007年10月12日に出願された、腹膜透析センサ装置、システム機器及びこの方法という標題の米国特許出願第11/871,828(代理人整理F30(以前のDEKA−025XX)に関連し、それら全体が参照として本願に組み込まれる。
さらに、この出願は以下の米国特許出願、カセットシステム一体化装置という標題の米
国特許出願(代理人整理No.F62)及び血液透析システム及びこの方法という標題の米国特許出願(代理人整理No.0570/70019US00)に関連し、本願と同日付けで出願され、それら全体が参照として本願に組み込まれる。
本願発明の一つの態様に従って、ウェルは、熱伝導性材料の中空のハウジングを含む。
ハウジングは外面と内面とを有する。内面は、検出プローブと嵌め合い関係を形成するような所定の形状である。この嵌め合いは、内面と検出プローブとを熱的に結合する。
本願発明の一つの態様に従って、カセット内の対象媒体の温度及び導電性を判定する方法が記載される。この方法は、カセット内に少なくとも一つのウェルを設置する工程と、温度と導電性とが判定できるようにウェルと検出プローブとを熱的に結合する工程と、検出プローブから少なくとも三つのリード線を通じて熱及び導電性信号を転送する工程と、この信号を使用して温度と導電性とを判定する工程を含む。
あるいはまた、ウェルはカセットに、例えば圧入連結と、可撓性タブと、接着剤と、超音波溶接と、保持プレート及び締結具と、のうちの少なくとも一つを使用して結合される。オーリングがウェルと流体導管との間に配置され得る。オーリングは円形断面、四角形断面、及びX形状の断面の一つを含み得る。ウェルは、オーリングの一部を受容するための溝を含み得る。導管と接触するウェルの一部は、導管を変形させるために可撓性を有し、上記可撓性を提供するために複数の切込み部を含み得る。
る。
上述の図面及び図面に記載された構成要素は、必ずしも一貫した尺度又は寸法で描かれていないことに留意されたい。文脈が他に示唆しない限り、同様な構成要素が同様な符号によって示される。
この明細書の説明及び添付の特許請求の範囲において使用されるように、以下の用語は、文脈が他に要求しない限り、ここで示された意味を有する。
「球形」は、一般的な球形を意味する。
「流体」は、例えば流動路を通って送られることが可能な物質、液体を意味する。血液は流体の特定の例示である。
「対象媒体」は、検出プローブと直接的に、又はサーマルウェル、センサ伸長ピン、及び一つ以上のセンサにそのような対象媒体の特性に関する情報を転送するための他の機器
等を介して間接的に接触する、任意の流体、固体、液体又はガスを含む任意の材料である。
一つの例示の実施形態において、サーマルウェルは、温度検出プローブ等のセンサプローブを収容するために使用される。サーマルウェルは対象媒体(例えば血液又は透析液等の液体)と直接接触し、検出プローブは対象媒体と直接接触しない。サーマルウェルと検出プローブ構造との熱力学的特性によって大部分が決定される熱伝導に基づいて、検出プローブは、対象媒体と直接接触すること無しに対象媒体の特性を判定できる。センサ装置構成の正確性及び効率性が、構造、材料及びプローブとサーマルウェルの両方の形状を含む多くの要因に依存するが、これらの要因に制限されない。
を含むその変更は、サーマルウェル5100と検出プローブ5102との間の熱伝導を変化させるであろう。以下により詳細に記載されるように、サーマルウェル5100の材料構造は、センサ装置における別の変更要素である。
さの両極がこれらの実施形態に示されるが、任意の長さが考慮されることを理解されたい。本明細書の記載は変化要素のいくつかの影響を説明することを意味する。
なものである。任意の所望される厚みが考慮される。示された図面は、記述的目的のためであり、多くが考慮された2つの実施形態を表す。
は矩形断面を有する。しかしながら、変形実施形態において、オーリングは丸い又はX形状断面を有し得る。同様に、オーリングを有する本明細書に記載された様々な実施形態において、それらの実施形態におけるオーリングは、丸い、矩形の又はX形状の断面、又は所望される任意の断面形状を有する。
図7Mを参照すると、流体路5108にインサート成形されるサーマルウェル5100が示される。ゾーン5406は、周囲を覆う流体路5108におけるプラスチックに適したフランジである。この実施形態に示されるように、フランジは平坦であるが、他の実施形態では、フランジはベル形または他の形状となり得る。
直接センサ接触、サーマルウェルの使用を通じたセンサインターフェースを含む、システム、機器、及びセンサインターフェースのための方法の様々な実施形態、又は様々な使い捨ての及び再利用される構成要素を有する他の実施形態が記載される。このようなシステム、機器及びセンサインターフェースのための方法が多様なセンサと共に使用され、広範の用途に使用される。このようなシステム、機器、及びセンサインターフェースのための方法は、様々なセンサの実施形態と共に使用する又は任意の特定の状況において使用することを決して制限しない。
装置の使用目的に関連して決められる。
ある実施形態において、第三のリード線6018がさらに検出プローブ6000内に組み込まれる。図13Bは、検出プローブ6000が2つのリード線6016を含むが、第三のリード線6018を含まない場合の、変形実施形態を示す。
3.1 流体路に接続して使用されるセンサ装置及びセンサ装置システム
センサ装置の説明のために、例示の実施形態におけるセンサ装置が説明される。例示の実施形態は、図14A,14Bに示される別の例示の実施形態とともに、図13A,13B及び図15に示される。センサ装置の別の実施形態においては、センサプローブはサーマルウェルの外側で使用される。しかしながら、センサ装置は既に本明細書において単独で説明されている。従って、後の説明においては、この目的のために、センサプローブとサーマルウェルとを含んだセンサ装置の例示の実施形態の一実施形態について説明する。
6014は、対象媒体の温度を熱センサ6014のフィードバックに基づいて判定することが可能な装置にリード線6016を介して接続している。また、導電性検出が好ましい実施形態においては、リード線6018は対象媒体の導電性を判定することが可能な装置に接続していてもよい。対象媒体の導電性を判定する場合には、リード線6018に加えて、第2のリード線/コンタクト(図示略)が使用される。第2のリード線は、図15に示すような第2のセンサ装置であるか、或いは、別に、図15に示すセンサ装置と同一であるとは限らない第2のプローブであってもよいが、対象媒体のキャパシタンスを検出可能な、電気的コンタクトを含む任意のプローブまたは装置であることが好ましい。
図14A,14Bに示すように、別の例示の実施形態においては、センサプローブ5800はサーマルウェル5100に結合され、図示されたような形状を有する先端5802はサーマルウェル5100の内側領域5404,5406と先端5802との間にエアギャップ6402を形成する。エアギャップ6402は、5802の検知先端の上部のみがサーマルウェル5100の上部領域5402に接続するように断熱障壁を供する。
図16に示すように、サーマルウェル5100に結合したセンサプローブ6602を示す別の例示の実施形態が示される。この説明のために、センサプローブ6602の任意の実施形態及びサーマルウェル5100の任意の実施形態が使用される。本実施形態において、センサプローブ6602の先端とサーマルウェル5100との間の熱的な結合を高めるために、センサプローブ6602とサーマルウェル5100の内側領域5402との接触領域には熱グリース6604が配置されている。一実施形態において、熱グリース6604の量は前記領域5402に対して配置されているだけで十分である。しかしながら、別の実施形態においては、熱グリースの量を多くしても少なくしてもよい。
0及び流体路5108は使い捨て可能な部位であり、センサプローブ6000は再利用可能な部材である。また、スプリング6700も再利用可能な部材である。スプリング6700及びセンサプローブ6000はハウジング6708内に配置されている。ハウジング6708は任意の機械、コンテナ、装置やその他のものであってもよい。スプリング6700は円錐状のものや、コイルスプリングやウェーブスプリングやウレタンスプリングであってもよい。
度を検出するためのものである。他の実施形態において、3つ又はそれ以上のワイヤを含んでいる。これら実施形態のいくつかは、温度と導電性とを検出するためのものである。
パシタンスセンサまたはセンサ装置の一つまたはセンサプローブの一つ及び電気的センサを使用して検知されてもよい。
この記載で示され、かつ説明されるカセットの実施形態は、例示のまたはいくつかの別の実施形態を含む。しかしながら、同様なまたは付加的な機能性を含んだ様々なカセットが意図されている。その上で、可変な流体路及び/またはバルブ位置を有し、またはポンプ機能、バルブ機能、及び/またはその他のカセット機能を利用するものであってもよい。全ての実施形態は本願発明の範囲内にある。
1994年9月27日に発行された米国特許第5350357号の「腹膜の透析システム及び液体分配を採用する方法及び重力流を模倣したポンプカセット」、1998年5月26日に発行された第5755683号の「静脈ライン流制御システム用カセット」、2
001年4月24日に発行された第6223130号の「流体流制御システムの膜の漏れを検出する装置及び方法」、2001年5月22日に発行された第6234997号の「静注薬物を混合及び搬送する装置及び方法」、2005年6月14日に発行された第6905479号の「集積化フィルタを備えたポンプカートリッジ及びカートリッジで流体を濾過する方法」、2003年4月10日出願の米国特許出願第10412658号の「流体の目標量を配分するシステム及び方法」、2003年10月30日出願の米国特許出願第10/696990号の「ポンプカセット貯蔵物」に記載された種類の可撓性膜流体カセットを含む、流体カセットは、その出願の全ての内容が参照されて盛り込まれ、ここで記載されたセンサ装置及びセンサ装置システムに関連して使用される。
例示のカセット2300はウェル及びチャネルの形状をなす内部空洞の配列を形成している。例示のカセット2300においては、内部空洞は、流体経路2303のような、液体(図23Aに示す)を運ぶための多数の流体路を形成している。例示のカセット2300において、内部空洞はまた、ポンプチャンバー2301,2302(図23Cに示す)のようなポンプチャンバー及びバルブステーション2304(図23Cに示す)のような多数のバルブステーションを形成する。例示のカセット2300において、バルブステーション2304のようなバルブステーションは、流体経路2303のような多数の流体経路とポンプチャンバー2301,2302と、及びポンプチャンバー2301,2302同士を相互に連結させている。
されているように)カセットの剛性本体内に位置している。しかしながら、他の実施形態において、センサポートはカセットを覆っている可撓性隔膜の一またはそれ以上の領域を貫通して延びている。
センサ装置の多くの異なった実施形態は可撓性カセット内に設置されたサーマルウェルに接続されて使用され、図14A〜B、図15及び図16に示した、及び、上述したものと同様な実施形態を含む。
特定の実施形態において、例示のカセット2300は、バルブステーション及びポンプチャンバーを覆う隔膜領域上で、米国特許第5350357号及び他の特許及び上記した特許出願に記載された正又は負の流圧を含む、局所的に正圧及び負圧を供給する機器(図示しない)とともに使用されてもよい。カセット2300が圧力供給装置(図示しない)とともに使用される場合、カセット2300は多くの異なった方法及び多くの異なった位置で装置に接続している。好ましくは、特定の実施形態において、カセット2300は装置に垂直又は実質的に垂直方向といったように水平方向以外の方向に装着されている。垂直又は実質的に垂直な方向へのカセットの配置は、空気の閉じ込めを回避し、正圧及び負圧の供給を最適化するというカセットの形状に応じた利点を提供し、米国特許第5350357号及び他の特許及び上記した特許出願に記載された、カセットに対する、正又は負の流圧を含む。
キャパシタセンサ、センサ装置の一つまたはセンサプローブの一つ及び電気的センサを使用して検出される。
上述した可撓性膜カセット以外のカセットはここで上述したセンサ装置及びセンサ装置システムとともに使用されてもよい。2007年4月13日(E77)に出願された特許出願第11/787213号の「熱交換システム、装置及び方法」、2007年4月13日(E79)に出願された特許出願第11/787213号の「導電性センサシステム、装置及び方法」に記載の種類のカセットは、その出願の全ての内容が参照されて盛り込まれ、ここで記載されたセンサ装置及びセンサ装置システムに関連して使用される。また、カセット、カセットアッセンブリ及び以下の出願に記載された種類のマニホールドがここで記載されたセンサ装置及びセンサ装置システムとともに使用される。以下の出願とは、2007年10月12日に出願された米国特許出願第11/871680号の「ポンプカセット」(代理人整理番号DEKA−019XX)、2007年10月12日に出願された米国特許出願第11/871712号の「ポンプカセット」(代理人整理番号DEKA−020XX)、2007年10月12日に出願された米国特許出願第11/871787号の「ポンプカセット」(代理人整理番号DEKA−021XX)、2007年10月12日に出願された米国特許出願第11/871793号の「ポンプカセット」(代理人整理番号DEKA−022XX)、2007年10月12日に出願された米国特許出願第11/871803号の「カセットシステム集積化装置」(代理人整理番号DEKA−023XX)。さらに、「血液透析システム及び方法」と題する米国特許出願(代理人整理番号D0570/70019US00)、及び「カセットシステム集積化装置」と題する米国特許出願(代理人整理番号F62)ばかりでなく、2007年10月12日に出願された米国特許出願第11/871680号の「ポンプカセット」(代理人整理番号DEKA−019XX)に記載された血液透析システム及び方法といった医療機器を含む多くの機器は、その出願の全ての内容が参照されて盛り込まれる。
図34は本発明の例示の実施形態に従ったシステム10を示す。システム10はベースユニット11及びマニホールドを含む使い捨てユニット16を含んでいる。使い捨てユニット16は一般に、患者の治療の後に破棄されるという点で「使い捨て」という意味である。一方、ベースユニット11は新規の使い捨てユニット16を単に装着することで繰り返し再使用することはが可能である。
3b(または、熱交換バッグ入口という)と、流体路150の他端に流体接続されたフロー路出口27(または、熱交換バッグ出口という)とを含んでいる。別の実施形態において、マニホールド130は図35に示す熱交換バッグまたは他の要素を含んでいない使い捨てユニット16に接続されて使用される。
モデル番号、期限切れデータ、先使用者情報)を読み込むとともに使い捨てユニットに情報(例えば、使用者情報)を書き込む双方向性の接続インターフェースを供給する。例示の実施形態において、データキーが存在しない場合または使い捨てユニットが使用不可の場合、例えば、受付不可のシリアル/モデル番号である場合、先に設定された期限を過ぎている場合、または、既に使用済みである場合、コントローラ49は処理開始が実行されないようにする。コントローラ49はデータキーが取り除かれた場合は処理を終了させる。データキーインターフェース2540の代わりに、ベースユニット11またはマニホールドインターフェース2500は使い捨てユニットからの情報を読み込む、及び/または使い捨てユニットに情報を書き込むための他の種類のインターフェース(例えば、RFID、バーコードリーダ、スマートキーインターフェース)を含んでいてもよい。
ここに記載される本発明の様々な実施形態において、センサ装置システムは、センサマニホールドを含んで利用される。センサマニホールドは、対象媒体が一つの環境からセンサ読込みを得るためにより高い導電性を有する別の環境に移動されることを可能とする。例えば、カセットマニホールドは、検出プローブ等のセンサ装置により好ましくない、温度及び/又は湿度等の環境状態の様々な様式に影響を受けない領域に含まれ得る。あるいはまた、検出装置及び検出装置システムは、繊細であり、システムの他の構成要素より故障し易いプローブを有する。センサマニホールドを使用してシステムの残り部分からセンサ装置とセンサ装置システムとを分離することによって、検出装置と検出装置システムとが、最小限の影響で修理又はシステムの残り部分と取り替えられることが可能となる。あるいはまた、センサマニホールドは、システムの他の構成要素より多く又は少ない頻度のいずれかで取り替えられ得る。
ルド3900の剛体に位置決めされたセンサポート3904、3905、及び3906と共に示される。2つの可撓性薄膜を有する剛体カセットの場合は、図39に示されるように、センサポート3904、3905及び3906の一つの実施形態における剛体の側面のどちらか一方で、カセット(図39に示されるように)の剛体部分において位置決めされ得る。しかしながら、他の実施形態において、センサポートは、カセットマニホールドと重なり合う可撓性ダイアフラムの一つ以上の領域を延びる。
さらに移動される。熱エネルギーは次に熱センサ6014に伝導される。熱センサ6014は、熱センサ6014のフィードバックに基づいて対象媒体の温度を判定する機器にリード線6016を介して連絡する。実施形態において、導電性検出がさらに所望される場合に、リード線6018は、対象媒体の導電性を判定する機器と連絡する。対象媒体の導電性の判定に関して、リード線6018に追加して、第2の電気リード線/コンタクト(示されない)がさらに使用される。第2のリード線は、電気的なコンタクトを含む、対象媒体の電気容量を検出可能な任意のプローブ又は装置である。
検出装置の多くの異なる実施形態が、上述の図14A〜14B、図15及び図16に示される同様な実施形態を含む、可撓性カセットマニホールドに設置されたサーマルウェルと接続して使用され得る。
ある実施形態において、検出装置は、カセットの流体ライン内の対象媒体の導電性を検出するために使用される。ある実施形態において、これはさらに温度検出にも使用される。これらの実施形態において、温度及び導電性の両方の検出が所望される場合であって、リード線の2つが温度検出のために使用され、第三のリード線が導電性検出のために使用され得る時は、検出プローブは一般的に少なくとも三つのリード線を含む。
任意の電気センサである。従って、ここに記載されるシステムにおいて、導電性及び温度は、一つのセンサ装置すなわちここに記載されるような一つのセンサプローブと第2の電気容量センサ、又は一つのセンサ装置すなわちここに記載されるような一つのセンサプローブと電気センサのいずれかを使用して検出できる。
は、センサブロック4005に配置される。この実施形態において、センサブロック4005は、温度センサ及び/又は導電性センサ等のセンサのためにカセットマニホールド上の領域として含まれる。導電性センサ及び温度センサは、当業者に公知の任意の導電性又は温度センサである。一つの実施形態において、導電性センサ素子(又はセンサリード線)はグラファイト製ポストである。他の実施形態において、導電性センサ素子は、ステンレス鋼、チタン、又は導電性測定のために典型的に使用される(又は使用可能である)形式の任意の他の材料から作られるポストである。特定の実施形態において、導電性センサは、センサリード線からセンサ機構、制御器又は他の機器への信号を送信する電気的接続を含む。様々な実施形態において、温度センサは、温度を検出するために一般に使用される(又は使用可能である)任意の温度センサである。
ここで記述される発明の様々な実施形態において、センサマニホールドを備えるセンサ装置を備える、流体処理のためのシステム及び方法が利用される。このような実施形態の例は、様々な形態の透析、心臓バイパス、及び他の体外治療及び療法のような様々な体液及び/又は治療薬のポンピング、測定、計量、制御、及び/又は分析を伴うシステム及び方法の実施形態を含む様々な医学的状態の診断、治療、又は改善のためのシステム及び方法を含むであろう。更なる例は、水処理システム、水分蒸留システム、及び透析液のような診断、治療、又は改善に利用される流体を含む流体を準備するためのシステムを含む流体処理及び準備を含む。
ールドの使用によってセンサ装置及びセンサ装置システムをシステムの他の構成要素から分けることは、システムにおける他の構成要素に最小限の影響を及ぼすだけで検出装置及び検出装置システムがチェックされること、検査されること又は交換されることを許容するであろう。システムの残りに最小限の影響を与えるだけで、センサマニホールドをチェックする、検査する、修理する又は交換する能力は、本願と同日付けで出願された「血液透析システム及び方法(Hemodialysis System and Method)」と名称が付けられた米国特許出願(代理人整理番号D0570/70019US00)及び「カセットシステム統合装置(Cassette System Integrated Apparatus)」と名称が付けられた米国特許出願(代理人整理番号F62)において記述された統合カセットシステム及び方法と関連して利用される場合、特に有利である。あるいは、センサマニホールドは、システムの他の構成要素に比べて多い頻度又は少ない頻度のどちらでも交換されるであろう。
用するであろう。様々な実施形態において、図43に示すように、一実施形態においてはスクリュー、他の実施形態においては接続のためのいかなる手段でもよいコネクタ4306(図44Bにおいても示されている)が利用されるが、他の形状のスクリュー、溶接部、クリップ、クランプ、及び他の形態の化学的及び機械的結合のような、当業者に公知であるいかなる手段も利用されるであろう。
109との間の流体経路4222を流れるであろう。流体経路4222の曲がり目(チューブコネクタ4108の近傍)において対象媒体の流れが遅くなるにつれて、コネクタ4108を介して対象媒体からエアが除去されるであろう。
のための開口4604を含む。特定の実施形態においては、電気的接続部4603が、エアギャップ4606を備えてPCB上に搭載されるか、又はPCB4602と共に製造される。このような実施形態においては、PCB4602へのより少ない影響とともに、センサマニホールド4100の様々な構成要素の収縮及び膨張を許容することによって、エアギャップ4606は、検出プローブ4501及びPCB4602間の電気的接続に対する保護を提供すべく利用されるであろう。
ら構成されるであろう。位置4702での対象媒体の導電性は、もし適量の酸溶液(及び前の工程では重炭酸塩溶液)が位置4702の前に添加されたなら、判断するために利用されるであろう。特定の実施形態においては、もし導電性測定が所定範囲から外れるか、あるいは所定測定から所定量よりも多く外れると、対象媒体は、適正濃度の酸溶液及び重炭酸塩溶液を含有しないであろう。このような例において、特定の実施形態においては、血液透析システムは警告されるであろう。
く外れると、血液透析システムは警告されるであろう。
Claims (15)
- 複数の流体通路(4220,4222,4223,4224,4225)を有するハウジングを備えるカセット(4100)であって、各流体通路は該流体通路に沿って流れる流体の温度を伝達するとともに導電性を検出するためのウェルを有するセンサ素子を含み、該ウェルはセンサ(4404,4501)と相互接続するように適合されている、カセット。
- 各センサ(4404,4501)はエッジコネクタ(4406,4605)を有するプリント回路基板に備えられるとともに該プリント回路基板に電気的に接続されており、該エッジコネクタを通じてセンサからシステムコントローラへ検出情報が送られる、請求項1に記載のカセット。
- 前記ハウジングは、トッププレートとベースとを備え、該トッププレートが前記流体通路の容積を規定するように前記ベースにシールされるように係合され、各センサのセンサ素子が前記トッププレートを貫通して、前記流体通路内に延びている、請求項1に記載のカセット。
- 前記ウェルは前記流体通路において流体と接触するように構成されている、請求項1に記載のカセット。
- 前記ウェルは、圧入連結と、可撓性タブと、接着剤と、超音波溶接と、保持プレート及び締結具と、のうちの1つ以上によってカセットに結合される、請求項4に記載のカセット。
- 前記センサはサーミスタである、請求項1に記載のカセット。
- 前記ウェルは熱伝導性及び導電性材料からなる中空のハウジングを備え、該ハウジングは外面と内面とを有し、前記内面は検出プローブ(4404,4501)と嵌め合い可能な所定形状を有し、該嵌め合いによって前記内面が検出プローブ(4404,4501)に熱的及び電気的に結合される、請求項1に記載のカセット。
- 各流体通路は該流体通路内を延びるとともにウェルから離間して配置される導電性検出プローブを含む、請求項1に記載のカセット。
- 透析装置であって、該透析装置において液体を検出するためのカセットを備え、該カセットは複数の流体通路を有するハウジングを備え、
各流体通路は該流体通路に沿って流れる流体の温度を伝達するとともに導電性を検出するためのウェルを有するセンサ素子を含み、該ウェルはセンサと相互接続するように適合されている、透析装置。 - 前記液体は透析液を含む、請求項9に記載の透析装置。
- 前記ハウジングの第1流体通路が、第1のポートを介して液体を受け入れ、第1のポートより上方の第2のポートを介して該液体を吐き出すように構成されるとともに、第1のポートおよび第2のポートより上方の第3のポートが、第1のポートから第2のポートへ移動する液体からのガスを放出するように構成される、請求項9に記載の透析装置。
- 前記ハウジングの第1流体通路が、水と重炭酸塩緩衝液との第1混合液を受け入れるように構成されるとともに、前記ハウジングの第2流体通路が、第1混合液と、酸又は電解質濃縮物とを含む完了した透析液からなる第2混合液を受け入れるように構成されており、各流体通路は該流体通路内を延びるとともにウェルから離間して配置される導電性検出プローブを含む、請求項9に記載の透析装置。
- 前記ウェルはサーミスタと相互接続するように適合されている、請求項12に記載の透析装置。
- 前記ハウジングの第1の流体通路が、ダイアライザーに流れる透析液を受け入れるように構成されるとともに、前記ハウジングの第2流体通路が、ドレイン又は加熱装置に案内される透析液を受け入れるように構成され、前記ウェルはサーミスタと相互接続するように適合されている、請求項9に記載の透析装置。
- 各流体通路は、該流体通路内に延びる導電性検出プローブをさらに備える、請求項14に記載の透析装置。
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