JP2009000188A - Dialyzer - Google Patents

Dialyzer Download PDF

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JP2009000188A
JP2009000188A JP2007162166A JP2007162166A JP2009000188A JP 2009000188 A JP2009000188 A JP 2009000188A JP 2007162166 A JP2007162166 A JP 2007162166A JP 2007162166 A JP2007162166 A JP 2007162166A JP 2009000188 A JP2009000188 A JP 2009000188A
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dialyzer
dialysate
substance
flow path
antibacterial
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Hiroaki Isaka
弘明 井坂
Haruhiko Tsutsumi
晴彦 堤
Yasushi Sakagami
恭 坂上
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Toray Industries Inc
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Toray Industries Inc
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a dialyzer having a blood flow passage, a dialysate flow passage and a separation membrane, the dialyzer capable of absorbing and removing substances considered as having adverse effect on a human body such as cell toxin, and to provide a manufacturing method of the dialyzer. <P>SOLUTION: The dialyzer is provided with the blood flow passage, the dialysate flow passage and the separation membrane, and an antibacterial substance is held in the dialysate flow passage. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、人工透析、血液濾過に用いられる透析器およびその製造方法に関するものである。   The present invention relates to a dialyzer used for artificial dialysis and blood filtration and a method for producing the same.

処理液と被処理液により物質の濾過、拡散、吸着を行う分離膜モジュールは単位容積当たりの有効膜面積を大きく取れるため、これまで精密濾過、限外濾過などの水処理関係、窒素、酸素、水素等のガス分離関係、薬品関係、バイオ関係等多くの分野で使用されており、とりわけ血液透析、血液濾過等の血液処理器として好適に使用されている。   Separation membrane modules that perform filtration, diffusion, and adsorption of substances by treatment liquid and liquid to be treated can take a large effective membrane area per unit volume, so far, water treatment related to microfiltration, ultrafiltration, etc., nitrogen, oxygen, It is used in many fields such as gas separation such as hydrogen, medicine, and biotechnology, and is particularly preferably used as a blood treatment device such as hemodialysis and blood filtration.

透析器を血液透析、血液濾過等の血液処理器として用いる場合、分離膜を介しての血液との両方向性の物質移動(不足物質の補充、過剰物質の除去)を行うため、細胞外液に類似するよう調整された透析液が用いられている。
このように、透析治療に於いて血液処理器と並んで根本的な構成要素である透析液は通常、塩化ナトリウム、塩化カルシウムなどを成分とするA液と重炭酸などを成分とするB液を使用直前に逆浸透膜を透過させた逆浸透水で希釈、混合することで調整される。逆浸透水については、重金属や菌、菌体毒素(エンドトキシン、ペプチドグリカンなど)などが混入していると生体への悪影響が考えられるため、清浄度を十分保つ必要があるが、逆浸透膜の劣化やピンホールによる除去率低下、配管への通常の薬液消毒方法では除去出来ない強固なバイオフィルムの形成により逆浸透水の清浄度が低下してしまう。このとき、透析治療に高透水性の透析器を用いた場合、分離膜を介して透析液側流路から血液側流路に透析液が濾過流入する逆濾過現象が発生する可能性があった。
それら問題を解決するため、特許文献1では、透析液供給装置の特定部位を局部的に加熱し殺菌する方法が提案されているが、菌が死滅した後に発生する菌体毒素の除去等について課題が残されている。また、菌体毒素の除去について特許文献2では、不溶性ビニル重合体成形品に塩基性窒素原子を有する官能基とポリミキシン分子を結合してなる解毒吸着剤が提案されているが、透析器に用いる分離膜にこのような吸着能を付与することは困難であった。
特開2006−255153号公報 特開昭60−209525号公報
When a dialyzer is used as a blood treatment device such as hemodialysis or blood filtration, it is used in the extracellular fluid to perform bi-directional mass transfer (replenishment of deficient substances and removal of excess substances) through the separation membrane. Dialysate adjusted to be similar is used.
Thus, in dialysis treatment, the dialysate, which is a fundamental component along with the blood treatment device, is usually composed of a liquid A containing sodium chloride, calcium chloride and the like and a liquid B containing bicarbonate and the like. It is adjusted by diluting and mixing with reverse osmosis water permeated through a reverse osmosis membrane immediately before use. For reverse osmosis water, contamination with heavy metals, fungi, and bacterial toxins (endotoxin, peptidoglycan, etc.) may have adverse effects on the living body. As a result, the cleanliness of reverse osmosis water decreases due to a decrease in the removal rate caused by pinholes and the formation of a strong biofilm that cannot be removed by the usual chemical disinfection method for piping. At this time, when a highly permeable dialyzer is used for dialysis treatment, there may be a reverse filtration phenomenon in which the dialysate flows into the blood side channel from the dialysate side channel through the separation membrane. .
In order to solve these problems, Patent Document 1 proposes a method of locally heating and sterilizing a specific part of a dialysis fluid supply device. However, there is a problem with removing bacterial toxins generated after the bacteria are killed. Is left. Regarding the removal of bacterial toxins, Patent Document 2 proposes a detoxification adsorbent obtained by binding a functional group having a basic nitrogen atom and a polymyxin molecule to an insoluble vinyl polymer molded article, which is used in a dialyzer. It has been difficult to impart such adsorption ability to the separation membrane.
JP 2006-255153 A JP-A-60-209525

本発明の目的は、血液流路と透析液流路と分離膜とを有する透析器において、菌体毒素など人体への悪影響が考えられる物質を吸着除去できる透析器、およびかかる透析器の製造方法を提供することにある。   An object of the present invention is a dialyzer having a blood flow path, a dialysate flow path, and a separation membrane, capable of adsorbing and removing substances that may have adverse effects on the human body, such as bacterial toxins, and a method for manufacturing such a dialyzer Is to provide.

上記課題を達成するため、本発明は以下の構成をとる。すなわち、
1.血液流路、透析液流路および分離膜を有し、前記透析液流路に抗菌性を有する物質が保持されてなる透析器。
2.前記抗菌性を有する物質の素材が多孔性セラミックスである、前記1に記載の透析器。
3.前記多孔性セラミックスがアルミナ、シリカ、ジルコニア、アパタイトから選ばれる一つ以上の成分を含むものである、前記2に記載の透析器。
4.前記抗菌性を有する物質が粒状物質である、前記1〜3のいずれかに記載の透析器。
5.前記粒状物質の平均粒子径が100μm〜5000μmの範囲内にある、前記4に記載の透析器。
6.前記分離膜が平膜または中空糸膜の形態を有する、前記1〜5のいずれかに記載の透析器。
7.血液流路、透析液流路および分離膜を有する透析器に、抗菌性を有する物質を含む無菌水を供給し、透析液流路内に抗菌性を有する物質を保持させる透析器の製造方法。
In order to achieve the above object, the present invention has the following configuration. That is,
1. A dialyzer comprising a blood channel, a dialysate channel, and a separation membrane, wherein an antibacterial substance is held in the dialysate channel.
2. 2. The dialyzer according to 1 above, wherein the material of the antibacterial substance is porous ceramics.
3. 3. The dialyzer according to 2 above, wherein the porous ceramic contains one or more components selected from alumina, silica, zirconia, and apatite.
4). 4. The dialyzer according to any one of 1 to 3, wherein the antibacterial substance is a granular substance.
5. 5. The dialyzer according to 4 above, wherein an average particle diameter of the granular material is in a range of 100 μm to 5000 μm.
6). The dialyzer according to any one of 1 to 5, wherein the separation membrane has a form of a flat membrane or a hollow fiber membrane.
7. A method for producing a dialyzer, wherein sterile water containing an antibacterial substance is supplied to a dialyzer having a blood flow path, a dialysate flow path, and a separation membrane, and the antibacterial substance is retained in the dialysate flow path.

本発明によれば、透析液製造装置をはじめとする配管の殺菌消毒などでは除去できない菌体毒素をはじめ、逆浸透膜の劣化やピンホールにより混入する可能性がある人体への悪影響が考えられる物質についても、解毒吸着剤を分離膜自体に付与することなく吸着除去することが可能となる。とりわけ高透水性の透析器を用いた場合に菌体毒素などの逆濾過現象を防止することが出来る。   According to the present invention, adverse effects on the human body that may be mixed by degradation of the reverse osmosis membrane or pinholes, including bacterial toxins that cannot be removed by sterilization and disinfection of piping including the dialysate production apparatus, etc. Substances can also be adsorbed and removed without applying a detoxifying adsorbent to the separation membrane itself. In particular, when a highly water-permeable dialyzer is used, reverse filtration phenomenon such as bacterial toxins can be prevented.

本発明における透析器は、血液流路と透析液流路と分離膜を備えており、分離膜は対称膜、非対称膜のいずれの構造でもよく、平膜、中空糸膜のいずれの形態でもよい。
中空糸膜型透析器の例を図1に示す。中空糸膜型透析器は、中空糸膜を複数本束ねて本体ケース1に挿入し、本体ケース端部に隔壁注型用キャップを取り付けた後に、隔壁用ポリマーをケース端部に注入し、隔壁3を形成することで、中空糸膜束2を本体ケースに固定する。隔壁3が固化した後に、端部における中空糸膜が両面とも外側に向かって開口するように隔壁部材をカットし、カット後の本体ケース1の両端部にヘッダー4を液密に取り付け、中空糸膜型透析器とする。血液は透析器の一方の血液流路6に供給され中空糸膜束2の内側を通液し、他方の血液流路6’から排出される。透析液は本体ケース1の一方の透析液ノズル5から供給され透析液流路7を通液し、他方の透析液ノズル5’から排出される。このとき、通常は血液と透析液は互いに向流の関係になるように通液される。
このような透析器において抗菌性を有する物質は、透析液流路7に保持されるものであり、透析器の使用時、製造時に透析液と共に流れ出ないよう保持されていればよい。抗菌性を有する物質を透析液と一緒に流れ出ないよう保持させる場所は、透析液流路であればいずれの場所でも良いが、透析液との接触機会を最大にするため透析液流路全体に保持されることが好ましい。血液と透析液との物質移動が活発に行われる以前に人体への悪影響が考えられる物質を出来うる限り除去するため、透析液入口側により多く保持させることがより好ましい。
また、抗菌性を有する物質を保持させる形態としては、本体ケース1や中空糸膜束2に吸着させる方法や、本体ケース1や中空糸膜束2の隙間に無菌水とともに設ける方法などを用いることが出来る。後者である無菌水とともに設ける方法を用いた場合、透析液入口側に設けられた抗菌性を有する物質を透析液と一緒に流れ出ないよう保持させるためには、中空糸膜束2の隙間や本体ケース1と中空糸膜束2の隙間よりも、抗菌性を有する物質の粒子経を大きくすることで容易に保持させることが可能である。一方、透析液出口に近い場所に抗菌性を有する物質を保持させる場合は、透析液と一緒に流れ出ないようとりわけ注意が必要であり、その例としては、抗菌性を有する物質の粒子経よりも小さな網目を備えた材料で透析液ノズルに蓋をする方法を用いることが出来る。
抗菌性を有する物質は大腸菌への最小発育阻止濃度が200ppm以下の物質であることが好ましい。抗菌性を有していない素材を用いる場合は、大腸菌への最小発育阻止濃度が200ppm以下になるよう抗菌性を付与すればよい。抗菌性の付与には、例えば銀や銅を用いればよく、これらを担持させればよい。担持させる方法としては、例えば被覆や反応を用いればよく、被覆する場合は、透析液との接触面積を大きくするために蒸着被覆などによって出来るだけ薄く被覆することが好ましい。
抗菌性を有する物質に用いる素材としては、活性炭、多孔性樹脂、多孔性セラミックスなどを用いることができるが、中でも抗菌性をより多く付与することができる多孔性セラミックスが好ましい。
多孔性セラミックスとしては、例えば、アルミナ、シリカ、ジルコニア、アパタイト、酸化チタン、チタン酸カリウム、炭化ケイ素、窒化ケイ素などが用いられる。これらの中で、得られるセラミックスの加工のしやすさを考慮すると、アルミナ、シリカ、ジルコニア、アパタイトまたはこれら成分の一つ以上を含むセラミックスを用いることが好ましい。
The dialyzer according to the present invention includes a blood flow path, a dialysate flow path, and a separation membrane, and the separation membrane may have any structure of a symmetric membrane or an asymmetric membrane, and may have any form of a flat membrane or a hollow fiber membrane. .
An example of a hollow fiber membrane dialyzer is shown in FIG. A hollow fiber membrane type dialyzer bundles a plurality of hollow fiber membranes and inserts them into the main body case 1, attaches a partition wall casting cap to the end of the main body case, and then injects a polymer for the partition wall into the end of the case. By forming 3, the hollow fiber membrane bundle 2 is fixed to the main body case. After the partition wall 3 is solidified, the partition wall member is cut so that the hollow fiber membranes at both ends open outward, and the header 4 is attached to both ends of the cut main body case 1 in a liquid-tight manner. Use a membrane dialyzer. The blood is supplied to one blood flow path 6 of the dialyzer, passes through the inside of the hollow fiber membrane bundle 2, and is discharged from the other blood flow path 6 '. The dialysate is supplied from one dialysate nozzle 5 of the main body case 1, passes through the dialysate flow path 7, and is discharged from the other dialysate nozzle 5 ′. At this time, the blood and the dialysate are usually passed in a countercurrent relationship.
The substance having antibacterial properties in such a dialyzer is held in the dialysate flow path 7 and may be held so that it does not flow out with the dialysate during manufacture when the dialyzer is used. The place where the antibacterial substance is kept from flowing out together with the dialysate may be any place as long as it is a dialysate flow path. It is preferred that it be retained. In order to remove as much as possible a substance that may have an adverse effect on the human body before mass transfer between blood and dialysate is actively performed, it is more preferable to hold more on the dialysate inlet side.
In addition, as a form for holding a substance having antibacterial properties, a method of adsorbing to the main body case 1 or the hollow fiber membrane bundle 2 or a method of providing with sterile water in the gap between the main body case 1 or the hollow fiber membrane bundle 2 is used. I can do it. In order to keep the antibacterial substance provided on the dialysate inlet side from flowing out together with the dialysate when using the latter method provided with sterile water, the gaps or the main body of the hollow fiber membrane bundle 2 are used. It can be easily held by increasing the particle size of the substance having antibacterial properties rather than the gap between the case 1 and the hollow fiber membrane bundle 2. On the other hand, when holding an antibacterial substance in a place close to the dialysate outlet, special care should be taken not to flow out together with the dialysate. A method of covering the dialysate nozzle with a material having a small mesh can be used.
The substance having antibacterial properties is preferably a substance having a minimum growth inhibitory concentration for E. coli of 200 ppm or less. In the case of using a material that does not have antibacterial properties, antibacterial properties may be imparted so that the minimum inhibitory concentration against E. coli is 200 ppm or less. For imparting antibacterial properties, for example, silver or copper may be used, and these may be supported. As a method for supporting, for example, coating or reaction may be used. When coating, it is preferable to coat as thinly as possible by vapor deposition coating or the like in order to increase the contact area with the dialysate.
As a material used for the substance having antibacterial properties, activated carbon, porous resin, porous ceramics, and the like can be used. Among them, porous ceramics that can impart more antibacterial properties are preferable.
As the porous ceramic, for example, alumina, silica, zirconia, apatite, titanium oxide, potassium titanate, silicon carbide, silicon nitride and the like are used. Among these, considering the ease of processing of the obtained ceramic, it is preferable to use alumina, silica, zirconia, apatite, or a ceramic containing one or more of these components.

抗菌性を有する物質は、透析液との接触面積を大きくするため粒状物質であることが好ましく、粒子径の測定方法として投影面積円相当径を用いて測定した場合の平均粒子経が5000μm以下であることが好ましい。また、透析液流路に保持後、透析液と一緒に流れ出ないことなどを考慮し、100μm以上であることが好ましく、透析液流路への保持のし易さを考えると500μm以上、3000μm以下であることがより好ましい。
これら抗菌性を有する物質は、透析器の製造組立時に透析器の透析液流路に保持すればよく、その方法として抗菌性を有する物質を含む無菌水を供給することで透析液流路に抗菌性を有する物質を保持させる方法が挙げられる。例えば、前述の中空糸膜型透析器の例において、本体ケースの両端部にヘッダーを液密に取り付けた後に抗菌性を有する物質を含む無菌水を通水する方法を用いればよい。このとき、無菌水に含まれる抗菌性を有する物質は、透析液ノズル5から流入し透析液流路7’に到達する。その後、中空糸膜束2の隙間に流れ込み、透析液ノズル5’から排出されるが、抗菌性を有する物質の粒子経を設定する際に中空糸膜束2の隙間を考慮することで透析液流路7’や中空糸膜束2の隙間に抗菌性を有する物質を留め、無菌水のみを排出し、抗菌性を有する物質を保持することができる。もしくは、抗菌性を有する物質を含む無菌水を透析液ノズル5から流入する際に、透析液ノズル5’に抗菌性を有する物質の粒子経よりも小さな網目を備えた材料で蓋をすることによっても、より簡便に抗菌性を有する物質を保持することができる。
また、透析器使用時に行うプライミング(洗浄)に併せて抗菌性を有する物質を含む無菌水を供給することで透析液流路に抗菌性を有する物質を保持させてもよい。これらの方法において、抗菌性を有する物質を含む無菌水の供給速度や、無菌水中の抗菌性を有する物質の濃度に制限はなく、保持させる量や製造条件、プライミング条件等に合わせて任意に設定することが出来る。
The substance having antibacterial properties is preferably a granular substance in order to increase the contact area with the dialysate, and the average particle diameter when measured using a projected area equivalent circle diameter as a particle diameter measurement method is 5000 μm or less. Preferably there is. In addition, it is preferably 100 μm or more in consideration of not flowing out together with the dialysate after being held in the dialysate flow path, and 500 μm or more and 3000 μm or less in view of ease of holding in the dialysate flow path. It is more preferable that
These antibacterial substances may be retained in the dialysate flow path of the dialyzer during the manufacture and assembly of the dialyzer, and as a method, antibacterial substances are supplied to the dialysate flow path by supplying sterile water containing the antibacterial substance. And a method for retaining a substance having a property. For example, in the above-described example of the hollow fiber membrane dialyzer, a method may be used in which aseptic water containing a substance having antibacterial properties is passed after the headers are liquid-tightly attached to both ends of the main body case. At this time, the antibacterial substance contained in the sterile water flows from the dialysate nozzle 5 and reaches the dialysate flow path 7 ′. Thereafter, it flows into the gap between the hollow fiber membrane bundles 2 and is discharged from the dialysate nozzle 5 ′. By setting the particle size of the substance having antibacterial properties, the dialysate can be obtained by taking the gap between the hollow fiber membrane bundles 2 into consideration. A substance having antibacterial properties can be retained in the gap between the flow path 7 ′ and the hollow fiber membrane bundle 2, and only sterile water can be discharged to hold the substance having antibacterial properties. Alternatively, when sterile water containing an antibacterial substance is introduced from the dialysate nozzle 5, the dialysate nozzle 5 'is covered with a material having a mesh smaller than the particle size of the antibacterial substance. In addition, a substance having antibacterial properties can be retained more easily.
In addition, an antibacterial substance may be retained in the dialysate flow path by supplying sterile water containing an antibacterial substance in conjunction with priming (washing) performed when the dialyzer is used. In these methods, there is no restriction on the supply rate of sterile water containing substances having antibacterial properties and the concentration of substances having antibacterial properties in sterile water, which can be set arbitrarily according to the amount to be retained, manufacturing conditions, priming conditions, etc. I can do it.

[エンドトキシン濃度の測定方法]
逆浸透水を用いて、エンドトキシン濃度が100EU/L、水温36.0℃〜37.0℃となるよう調製したエンドトキシン水溶液2000mLを流量200mL/分で実施例1および比較例1に示す透析器の透析液流路側に1回通水した。このとき透析器の血液側には通水を行わなかった。通水時間が8分に達したところで透析液出口側にて200mLサンプリングし、これを試験液とした。その後、トキシノメーターET−301(和光純薬)を用いて試験液のエンドトキシン濃度を測定した。
[コロニー数の測定方法]
殺菌前の浄水を生菌数100cell/mLに希釈し、水温36.0℃〜37.0℃となるよう調製した水溶液2000mLを流量200mL/分で実施例1および比較例1に示す透析器の透析液側に1回通水した。このとき透析器の血液側には通水を行わなかった。通水時間が8分に達したところで、透析液出口側にて200mLをサンプリングし、これを試験液とした。その後、試験液1.0mLを普通寒天培地を用いて、37℃の条件で5日間培養後、コロニー数をカウントした。
[Measurement method of endotoxin concentration]
Using the reverse osmosis water, 2000 mL of an endotoxin aqueous solution prepared so that the endotoxin concentration was 100 EU / L and the water temperature was 36.0 ° C. to 37.0 ° C. at a flow rate of 200 mL / min was used for the dialyzer shown in Example 1 and Comparative Example 1. Water was passed once through the dialysate channel. At this time, water was not passed through the blood side of the dialyzer. When the water flow time reached 8 minutes, 200 mL was sampled on the dialysate outlet side, and this was used as a test solution. Then, the endotoxin density | concentration of the test liquid was measured using Toxinometer ET-301 (Wako Pure Chemical Industries).
[Method for measuring the number of colonies]
Purified water before sterilization was diluted to 100 cells / mL of viable bacteria, and 2000 mL of an aqueous solution prepared so as to have a water temperature of 36.0 ° C. to 37.0 ° C. at a flow rate of 200 mL / min. Water was passed once through the dialysate side. At this time, water was not passed through the blood side of the dialyzer. When the water flow time reached 8 minutes, 200 mL was sampled on the dialysate outlet side and used as a test solution. Thereafter, 1.0 mL of the test solution was cultured for 5 days at 37 ° C. using a normal agar medium, and the number of colonies was counted.

(実施例)
東レ株式会社製透析器(TS−1.8UL)において、透析液流路、血液流路ともに無菌水が充填された状態で、透析液側流路にシネナンゼオミック社製銀担持ゼオライト(平均粒子径1000μm)を10g含む逆浸透水1000mLを両端の透析液ノズルそれぞれから1回ずつ通水し、透析液ノズルに500μm程度の編み目を備えた材料で蓋をして銀担持ゼオライトを保持させた。得られた透析器を前述条件で評価し、エンドトキシン濃度の測定と、試験液1mLを培養後のコロニー数をカウントした。評価結果を表1に示す。
(Example)
In a dialyzer manufactured by Toray Industries, Inc. (TS-1.8UL), the dialysate flow channel and the blood flow channel are filled with sterile water, and the dialysate side channel is filled with silver supported zeolite (average particles) 1000 mL of reverse osmosis water containing 10 g of a diameter of 1000 μm was passed through each of the dialysate nozzles at both ends, and the dialysate nozzle was covered with a material having a stitch of about 500 μm to hold the silver-supported zeolite. The obtained dialyzer was evaluated under the above conditions, and the endotoxin concentration was measured and the number of colonies after culturing 1 mL of the test solution was counted. The evaluation results are shown in Table 1.

(比較例)
透析液流路に上記銀担持ゼオライトなどの抗菌性を有する抗菌性を有する物質を一切保持しなかった以外は実施例1と同様にして評価した。評価結果を表1に示す。
(Comparative example)
Evaluation was performed in the same manner as in Example 1 except that no antibacterial substance having antibacterial properties such as the above-mentioned silver-carrying zeolite was retained in the dialysate flow path. The evaluation results are shown in Table 1.

Figure 2009000188
Figure 2009000188

本発明における透析器全体を例示する側断面図である。It is a sectional side view which illustrates the whole dialyzer in this invention.

符号の説明Explanation of symbols

1 :本体ケース
2 :中空糸膜束
3 :隔壁
4 :ヘッダー
5 :透析液ノズル
5’:透析液ノズル
6 :血液流路
6’:血液流路
7 :透析液流路
7’:透析液流路
1: Body case 2: Hollow fiber membrane bundle 3: Partition wall 4: Header 5: Dialysate nozzle 5 ': Dialysate nozzle 6: Blood channel 6': Blood channel 7: Dialysate channel 7 ': Dialysate flow Road

Claims (7)

血液流路、透析液流路および分離膜を有し、前記透析液流路に抗菌性を有する物質が保持されてなる透析器。 A dialyzer comprising a blood channel, a dialysate channel, and a separation membrane, wherein an antibacterial substance is held in the dialysate channel. 前記抗菌性を有する物質の素材が多孔性セラミックスである、請求項1に記載の透析器。 The dialyzer according to claim 1, wherein the material of the antibacterial substance is porous ceramics. 前記多孔性セラミックスがアルミナ、シリカ、ジルコニア、アパタイトから選ばれる一つ以上の成分を含むものである、請求項2に記載の透析器。 The dialyzer according to claim 2, wherein the porous ceramic includes one or more components selected from alumina, silica, zirconia, and apatite. 前記抗菌性を有する物質が粒状物質である、請求項1〜3のいずれかに記載の透析器。 The dialyzer according to any one of claims 1 to 3, wherein the antibacterial substance is a particulate substance. 前記粒状物質の平均粒子径が100μm〜5000μmの範囲内にある、請求項4に記載の透析器。 The dialyzer according to claim 4, wherein an average particle diameter of the granular substance is in a range of 100 µm to 5000 µm. 前記分離膜が平膜または中空糸膜の形態を有する、請求項1〜5のいずれかに記載の透析器。 The dialyzer according to any one of claims 1 to 5, wherein the separation membrane has a form of a flat membrane or a hollow fiber membrane. 血液流路、透析液流路および分離膜を有する透析器に、抗菌性を有する物質を含む無菌水を供給し、透析液流路内に抗菌性を有する物質を保持させる透析器の製造方法。 A method for producing a dialyzer, wherein sterile water containing an antibacterial substance is supplied to a dialyzer having a blood flow path, a dialysate flow path, and a separation membrane, and the antibacterial substance is retained in the dialysate flow path.
JP2007162166A 2007-06-20 2007-06-20 Dialyzer Pending JP2009000188A (en)

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