JP2018533993A - 透析液中の物質を検出するための感知システム - Google Patents
透析液中の物質を検出するための感知システム Download PDFInfo
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- JP2018533993A JP2018533993A JP2018508213A JP2018508213A JP2018533993A JP 2018533993 A JP2018533993 A JP 2018533993A JP 2018508213 A JP2018508213 A JP 2018508213A JP 2018508213 A JP2018508213 A JP 2018508213A JP 2018533993 A JP2018533993 A JP 2018533993A
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 368
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- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
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- 229940116269 uric acid Drugs 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/0054—Ammonia
-
- 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
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
- A61M1/16—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes
- A61M1/1694—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes with recirculating dialysing liquid
-
- 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
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
- A61M1/16—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes
- A61M1/1694—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes with recirculating dialysing liquid
- A61M1/1696—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis with membranes with recirculating dialysing liquid with dialysate regeneration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/24—Dialysis ; Membrane extraction
- B01D61/243—Dialysis
- B01D61/244—Dialysis comprising multiple dialysis steps
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
- G01N1/2205—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling with filters
-
- 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
- A61M1/00—Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
- A61M1/14—Dialysis systems; Artificial kidneys; Blood oxygenators ; Reciprocating systems for treatment of body fluids, e.g. single needle systems for hemofiltration or pheresis
- A61M1/28—Peritoneal dialysis ; Other peritoneal treatment, e.g. oxygenation
-
- 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
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Urology & Nephrology (AREA)
- General Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Biomedical Technology (AREA)
- Physics & Mathematics (AREA)
- Biochemistry (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Veterinary Medicine (AREA)
- Hematology (AREA)
- Public Health (AREA)
- Emergency Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- Vascular Medicine (AREA)
- Anesthesiology (AREA)
- Combustion & Propulsion (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Water Supply & Treatment (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Molecular Biology (AREA)
- External Artificial Organs (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
Description
アンモニアを感知する材料/部分が、使い捨て/単回使用である;
使用するには、患者がカートリッジを組み立てる必要がある;
きわめて近い/若しくは直接接触するセンサが、透析液の浸出を引き起こし、生体適合性の問題をまねく可能性がある;
誤って組み立てられる可能性があり、そのために不正確になることがある。
圧力の緩和なしでポンプのオンとオフを切り換えて、圧力を400mmHg(流入)又は−100mmHg(流出)に維持する通常の流れ制御に対する代表的な動作シナリオを仮定した。その結果によれば、容量が2250mA時の電池は、ファームウェアによって10.5Vで運転が停止されるまでに、上記の動作を18時間維持することができた。図13は、この実験における電池の電圧降下を動作時間に対して示したグラフを示す。
第2の試験では、流入サイクルと流出サイクルの全動作の間、ポンプが常にオンであるワーストケースシナリオを仮定した。その結果によれば、この電池は、ファームウェアによって10.5Vで運転が停止されるまでに、14.5時間機能し続けることができる。この実験における電池の電圧降下を動作時間に対して示したグラフを以下に示す。
Claims (17)
- 透析液中の物質を検出するための感知システムであって、
疎水性バリアであり、前記バリアを通して前記透析液中の前記物質がガスに対して平衡を保つことを可能にすることができる前記疎水性バリアと、
前記ガスを検出することができる検出器と、
前記疎水性バリアと前記検出器の間に配置されたインタフェースであり、前記インタフェースに沿った前記ガスの濃度勾配に従った前記疎水性バリアと前記検出器の間の前記ガスの輸送を可能にするように構成された前記インタフェースと
を含む、前記感知システム。 - インタフェースが、約0.1mm〜10mmの長さであるように構成された、請求項1に記載の感知システム。
- インタフェースが、約1.0mmの長さであるように構成された、請求項1に記載の感知システム。
- 疎水性バリアが透析液と流体連通する、請求項1に記載の感知システム。
- 疎水性バリアが、透析液の圧力変化に応答して変形するように構成された変形可能な隔膜を含む、請求項4に記載の感知システム。
- 変形可能な隔膜の変形が、インタフェース内でのガス移動を生じさせて、疎水性バリアと検出器の間のガスの輸送速度を増大させる、請求項5に記載の感知システム。
- 物質が、アンモニウム又はアンモニアである、請求項1に記載の感知システム。
- 疎水性バリアが、脱ガスバリア又は細菌濾過器を含む、請求項1に記載の感知システム。
- インタフェースが、前記インタフェース内に、アンモニアガスに適合する吸水体を含む、請求項1に記載の感知システム。
- 使い捨てのハウジングをさらに含み、前記使い捨てのハウジングが、透析液流路及び疎水性バリアを含み、インタフェースが、前記使い捨てのハウジングと検出器の間に配置された、請求項1に記載の感知システム。
- 透析液中の物質を検出するための感知システムであって、
前記透析液と接触する疎水性バリアであり、前記バリアを通して前記透析液中の前記物質がガスに対して平衡を保つことを可能にすることができる前記疎水性バリアと、
前記ガスを検出することができる検出器と、
前記疎水性バリアと前記検出器の間に配置されたインタフェースであり、前記疎水性バリアと前記検出器の間の前記ガスの流体連通を可能にするように構成された前記インタフェースと、
前記透析液と接触する変形可能な隔膜であり、前記透析液の流体圧力の変動に応答した前記インタフェース内での前後のガス移動を生じさせるように構成された前記変形可能な隔膜と
を含む、前記感知システム。 - 疎水性バリア及び変形可能な隔膜が透析液流路を流れている透析液と接触するような前記透析液流路をさらに含む、請求項11に記載のシステム。
- 疎水性バリアが変形可能な隔膜を含む、請求項11に記載のシステム。
- 蠕動ポンプの動作が透析液の流体圧力の変動を生じさせるような前記蠕動ポンプをさらに含む、請求項11に記載のシステム。
- 検出器が、アンモニアの存在下で変色する材料を含む、請求項1又は11に記載のシステム。
- 検出器が、アンモニアに敏感な膜を含む、請求項1又は11に記載のシステム。
- 検出器が、アンモニア選択性の電位差電極又は電流測定電極を含む、請求項1又は11に記載のシステム。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/833,900 | 2015-08-24 | ||
US14/833,900 US10018607B2 (en) | 2011-11-08 | 2015-08-24 | Sensing system for detecting a substance in a dialysate |
PCT/SG2016/050408 WO2017034481A1 (en) | 2015-08-24 | 2016-08-24 | Sensing system for detecting a substance in a dialysate |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2018533993A true JP2018533993A (ja) | 2018-11-22 |
JP7011577B2 JP7011577B2 (ja) | 2022-01-26 |
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US11255831B2 (en) * | 2016-09-09 | 2022-02-22 | Medtronic, Inc. | Colorimetric gas detection |
AU2017371552B2 (en) | 2016-12-05 | 2023-06-01 | Awak Technologies Pte Ltd | Sorbent for a dialysis device and dialysis system |
WO2021242762A1 (en) * | 2020-05-27 | 2021-12-02 | Baxter International Inc. | Peritoneal dialysis using pressurized chamber |
DE102020117216A1 (de) * | 2020-06-30 | 2021-12-30 | Fresenius Medical Care Deutschland Gmbh | Verfahren und Vorrichtung zum Dosieren von Lösungen |
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WO2017034481A9 (en) | 2017-06-15 |
US10018607B2 (en) | 2018-07-10 |
WO2017034481A1 (en) | 2017-03-02 |
AU2016312935A1 (en) | 2018-03-08 |
JP7011577B2 (ja) | 2022-01-26 |
AU2016312935B2 (en) | 2020-08-13 |
US20160109421A1 (en) | 2016-04-21 |
EP3340861A1 (en) | 2018-07-04 |
EP3340861A4 (en) | 2019-04-17 |
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