JPS6015163Y2 - Blood leakage sensor for hemodialysis - Google Patents
Blood leakage sensor for hemodialysisInfo
- Publication number
- JPS6015163Y2 JPS6015163Y2 JP11285779U JP11285779U JPS6015163Y2 JP S6015163 Y2 JPS6015163 Y2 JP S6015163Y2 JP 11285779 U JP11285779 U JP 11285779U JP 11285779 U JP11285779 U JP 11285779U JP S6015163 Y2 JPS6015163 Y2 JP S6015163Y2
- Authority
- JP
- Japan
- Prior art keywords
- light
- blood leakage
- sensor
- light receiving
- hemodialysis
- 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.)
- Expired
Links
Landscapes
- Optical Measuring Cells (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- External Artificial Organs (AREA)
Description
【考案の詳細な説明】
本考案は血液透析用漏血針の検出器の構造に関するもの
である。[Detailed Description of the Invention] The present invention relates to the structure of a blood leakage needle detector for hemodialysis.
血液透析に際しては透析器の破損による血液の流出を早
期に発見するために、透析器下流の透析液流路にセンサ
を設けて漏血を監視するようにしている。During hemodialysis, a sensor is provided in the dialysate flow path downstream of the dialyzer to monitor blood leakage in order to detect blood leakage due to damage to the dialyzer at an early stage.
センサとしては特定波長の光の吸収を利用する方式のも
のが多用されているが、諸種の物質を老廃物として含む
透析廃液と接するために、発光器および受光器の窓が汚
れ、光の透過を妨げセンサの感度を低下させる。Sensors that utilize the absorption of light at specific wavelengths are often used, but because they come into contact with dialysis waste fluid that contains various substances as waste products, the windows of the emitter and receiver become dirty, causing light to pass through. hinders sensor sensitivity and reduces sensor sensitivity.
したがってかなりひんばんにセンサの窓を清拭しなけれ
ば、実用にならないのが現状である。Therefore, the current situation is that the sensor window cannot be put into practical use unless the window of the sensor is cleaned frequently.
しかるに透析液流路の一部に透明硝子管を挿入し、該硝
子管の外側から漏血を検知する従来の構造のセンサでは
、清拭にあたっていちいち硝子管を流路からはずして、
内部をブラシ等を使って拭かなければならず、操作が極
めて面倒で非常に手間がかかり、そのために折角漏血針
があっても緊急時に役立たなかったり、漏血針を作動さ
せずに、透析を行なったりするケースがひん発している
のが実状である。However, with conventional sensors that insert a transparent glass tube into a part of the dialysate flow path and detect blood leakage from the outside of the glass tube, the glass tube must be removed from the flow path each time it is cleaned.
The inside has to be wiped with a brush, etc., which is extremely troublesome and time-consuming to operate.As a result, even if there is a blood leakage needle, it may not be useful in an emergency, or if the blood leakage needle is not activated, dialysis cannot be performed. The reality is that there are many cases where people do this.
さらに硝子管を使った従来の形式のセンサでは検出光路
に硝子管が介在するわけで、円筒の内外壁での光の分散
が検出感度を悪くするといった性能上の欠陥もあった。Furthermore, conventional sensors using glass tubes have a performance defect in that the glass tube is interposed in the detection optical path, and the dispersion of light on the inner and outer walls of the cylinder deteriorates detection sensitivity.
本考案はセンサを透析液流路と一体の構造とし、防水構
造にした発光器、受光器をセンサ構造体に着脱自在にセ
ットするようにしたことによって、従来のセンサで問題
となっていた清拭の容易化および性能の向上を計ろうと
するものである。The present invention has a structure where the sensor is integrated with the dialysate flow path, and a waterproof light emitter and light receiver are detachably set in the sensor structure, thereby solving the problem of cleanliness with conventional sensors. The aim is to make cleaning easier and improve performance.
次に本考案の漏血センサの構造を実施例によって具体的
に説明する。Next, the structure of the blood leakage sensor of the present invention will be specifically explained using examples.
第１図は従来の漏血センサの構造図で、発光素子２およ
び受光素子３をプラスチック製ブロック１に発、受光面
が相対するように固定し、ブロック１の中心の貫通孔に
硝子管４を通す。Fig. 1 is a structural diagram of a conventional blood leakage sensor, in which a light emitting element 2 and a light receiving element 3 are emitted to a plastic block 1, fixed so that the light receiving surfaces face each other, and a glass tube 4 is inserted into a through hole in the center of the block 1. Pass through.
そしてその硝子管の両端を透析廃液流路５，５′に挿入
して使用するようになっている。Both ends of the glass tube are inserted into the dialysis waste fluid channels 5, 5' for use.
第２図は本考案の漏血センサの構造図で、センサ本体６
は発、受光素子挿入ロア、７′と透析液流路接続口８，
８′が直交して穿たれており、異径中文字形接続管のよ
うな外形をしている。Figure 2 is a structural diagram of the blood leakage sensor of the present invention.
, light receiving element insertion lower, 7' and dialysate flow path connection port 8,
8' are perpendicularly perforated, and the external shape resembles a connecting pipe with different diameters.
他方発、受光素子２，３は、透明硝子製容器９に固定さ
れており、袋ナツト１０によって本体６の発、受光器挿
入ロア、７′にそれぞれ嵌挿、固定される。On the other hand, the emitter and light receiver elements 2 and 3 are fixed to a transparent glass container 9, and are fitted and fixed into the emitter, receiver insertion lower part, and 7' of the main body 6 by means of cap nuts 10, respectively.
なお硝子製容器にはＯリング１１が嵌挿されていて、透
析廃液の漏出を防止するようになっている。Note that an O-ring 11 is fitted into the glass container to prevent leakage of dialysis waste fluid.
使用に際しては硝子容器の底面に当る発光面、受光面を
清拭して、発光器、受光器をそれぞれセンサ本体の取付
孔７，７′にしつかり固定し、接続口８，８′を透析廃
液流路に接続する。Before use, wipe the light-emitting and light-receiving surfaces on the bottom of the glass container, secure the light-emitting device and light-receiving device to the mounting holes 7 and 7' of the sensor body, respectively, and connect the connection ports 8 and 8' to the dialysis waste liquid. Connect to flow path.
このようにして血液透析を行なえば、透析廃液は、流路
５′から本漏血センサに入り、発、受光器の硝子面に接
して流れた後、５から流出する。When hemodialysis is performed in this manner, the dialysis waste fluid enters the present blood leakage sensor through the flow path 5', flows in contact with the glass surface of the emitter and receiver, and then flows out from the flow path 5'.
硝子面は平であり、比較的広い面積を有しているので、
透析廃液中に気泡が混入した場合等液中に混在する異物
の影響を受けにくく、受光面が広く高感度を得ることが
できる。The glass surface is flat and has a relatively large area, so
It is less susceptible to the effects of foreign matter mixed in the liquid, such as when air bubbles are mixed in the dialysis waste liquid, and the light-receiving surface is wide, making it possible to obtain high sensitivity.
発、受光面の清拭も、従来のように硝子管を流路からは
ずすことなく、袋ナツトをとって発、受光器のみを取外
して、簡単に汚れを除去することができる。To clean the emission and light receiving surfaces, dirt can be easily removed by removing the cap nut and removing only the light transmitting and light receiving surfaces, without removing the glass tube from the flow path as in the conventional case.
第３，４図は本考案の漏血センサにおける、発、受光器
取付は法に関する他の実施例で、この他にも従来同種の
目的で用いられているいろいろの方式が利用できること
は勿論である。Figures 3 and 4 show other embodiments of the method for mounting the emitter and light receiver in the blood leakage sensor of the present invention, and it goes without saying that various other methods conventionally used for the same purpose can also be used. be.
上記の説明から明らかなごとく、本考案の漏血センサは
発光器と受光器ともに、単独に着脱できる構造になって
おり、発、受光面の清拭が極めて簡単で、かつ確実に行
なえる。As is clear from the above description, the blood leakage sensor of the present invention has a structure in which both the light emitting device and the light receiving device can be attached and detached independently, so that the light emitting and light receiving surfaces can be cleaned extremely easily and reliably.
発光面と受光面がともに平面で、両者が平行に向い合っ
ているために、透析廃液中に混在する気泡その他の異物
の影響を受けることが少なく、対向面積の拡大により感
度を高めることができる。Since the light-emitting and light-receiving surfaces are both flat and face each other in parallel, they are less affected by air bubbles and other foreign substances mixed in the dialysis waste, and sensitivity can be increased by increasing the facing area. .
その他外来光の影響を受けない、堅ろうであるなど従来
品に比して幾多の特徴を持っており、これまで重要と分
かつていても、保守操作が面倒である。It has many other features compared to conventional products, such as being unaffected by external light and being robust, and although these have been considered important until now, they are cumbersome to maintain.
誤動作が多い等安全装置として致命的な欠陥を有するが
故に、実用されなかった血液透析時の漏血監視に大きく
貢献するものと考える。We believe that this device will greatly contribute to monitoring blood leakage during hemodialysis, which has not been put into practical use because it has fatal flaws as a safety device, such as frequent malfunctions.
第１図は従来の漏血センサの構成国である。
第２図は本考案の漏血センサの実施例を示す構成国で、
第３図および第４図は他の発、受光素子の取付は法を示
すものである。
２・・・・・・発光素子、３・・・・・・受光素子、６
・・・・・・異径中文字形接続管、７，７′・・・・・
・大径口、８，８′・・・・・・小径口、９，９′・・
・・・・硝子容器。FIG. 1 shows the countries in which a conventional blood leakage sensor is constructed. Figure 2 shows the constituent countries of the embodiment of the blood leakage sensor of the present invention.
FIGS. 3 and 4 show other methods of mounting the light emitting and light receiving elements. 2... Light emitting element, 3... Light receiving element, 6
・・・・・・Different diameter medium letter shape connecting pipe, 7,7′・・・・・・
・Large diameter port, 8,8'...Small diameter port, 9,9'...
...Glass container.
Claims (1)
、７′に、２個の平底を有する円筒状透明硝子容器９，
９′に発光素子２、受光素子３を別々に嵌挿、固定して
なる発光器および受光器を着脱自在に取付け、小径口８
，８′を透析廃液流路に接続するようにしたことを特徴
とする血液透析用漏血センサ。A cylindrical transparent glass container 9 having two flat bottoms is attached to the large-diameter lower portion 7′ of the metal or resin-made connecting tube 6 having a medium-sized letter shape with different diameters.
A light emitting device and a light receiving device, which are formed by inserting and fixing a light emitting element 2 and a light receiving element 3 separately, are removably attached to the small diameter opening 8'.
, 8' are connected to a dialysis waste fluid flow path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11285779U JPS6015163Y2 (en) | 1979-08-16 | 1979-08-16 | Blood leakage sensor for hemodialysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11285779U JPS6015163Y2 (en) | 1979-08-16 | 1979-08-16 | Blood leakage sensor for hemodialysis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5630943U JPS5630943U (en) | 1981-03-25 |
| JPS6015163Y2 true JPS6015163Y2 (en) | 1985-05-14 |
Family
ID=29345199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11285779U Expired JPS6015163Y2 (en) | 1979-08-16 | 1979-08-16 | Blood leakage sensor for hemodialysis |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6015163Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002005383A (en) * | 2000-06-26 | 2002-01-09 | Advance Denki Kogyo Kk | Sensor mounting structure |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04226230A (en) * | 1991-05-23 | 1992-08-14 | Kiyoto Uchida | Thin tabular body carrying device |
| JPH0774054B2 (en) * | 1992-05-29 | 1995-08-09 | 有限会社ユア開発 | Amusement equipment |
| JPH0774055B2 (en) * | 1993-05-10 | 1995-08-09 | 有限会社ユア開発 | Amusement equipment |
| JP7212805B2 (en) * | 2020-06-24 | 2023-01-25 | ソリン・グループ・イタリア・ソシエタ・ア・レスポンサビリタ・リミタータ | Methods and devices for monitoring blood |
-
1979
- 1979-08-16 JP JP11285779U patent/JPS6015163Y2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002005383A (en) * | 2000-06-26 | 2002-01-09 | Advance Denki Kogyo Kk | Sensor mounting structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5630943U (en) | 1981-03-25 |
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