JPS6292833U - - Google Patents
Info
- Publication number
- JPS6292833U JPS6292833U JP18417785U JP18417785U JPS6292833U JP S6292833 U JPS6292833 U JP S6292833U JP 18417785 U JP18417785 U JP 18417785U JP 18417785 U JP18417785 U JP 18417785U JP S6292833 U JPS6292833 U JP S6292833U
- Authority
- JP
- Japan
- Prior art keywords
- perfusate
- dialyzer
- injection
- carbon dioxide
- flow rate
- 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.)
- Granted
Links
Landscapes
- External Artificial Organs (AREA)
Description
第１図はこの考案の肺補助装置の実施例の要部
を示すブロツク系統図、第２図は第１図の実施例
の潅流液ｐＨ制御割込ルーチンを示すフローチヤ
ート、第３図は第１図の実施例の注入流量調整部
の制御ルーチンを示すフローチヤート、第４図は
第１図の実施例の潅流液ｐＨ制御バツクグラウン
ドルーチンを示すフローチヤート、第５図乃至第
７図はそれぞれ第１図の実施例の注入流量調整部
の実施例を示す図、第８図はこの考案の他の実施
例の要部を示すブロツク系統図、第９図は第１図
の実施例の潅流液ｐＨ制御の実験結果を示す図、
第１０図は従来の外外循環型肺補助装置を示すブ
ロツク系統図、第１１図は第１０図の従来の装置
における潅流液ｐＨの変動特性を示す波形図であ
る。
２……透析器、７，８……開閉弁、１０……潅
流液供給部、１１……放散筒、１２……ｐＨ電極
、１９……ＣＯ２濃度計、３０……ｐＨ調整液供
給部、３１……ピンチバルブ、４０……制御部、
４１……表示器、４２……操作部、５０……注入
流量調整部、５１……注入停止部、５２，５３，
５４……開閉弁、５５……側路、６０……中央処
理部、６１……読出し専用メモリ、６２……設定
スイツチ、６３……設定回路、６４……入出力回
路、６５……随時読出し書込メモリ、６６……ｐ
Ｈ信号処理回路、６７……Ａ／Ｄコンバータ、６
８，６８′……駆動回路、６９……タイマ、９０
……Ｄ／Ａコンバータ。
FIG. 1 is a block system diagram showing the main parts of an embodiment of the lung assist device of this invention, FIG. 2 is a flowchart showing the perfusate pH control interrupt routine of the embodiment of FIG. 1, and FIG. 1 is a flowchart showing the control routine of the injection flow rate adjustment section of the embodiment, FIG. 4 is a flowchart showing the perfusate pH control background routine of the embodiment of FIG. 1, and FIGS. 5 to 7 are respectively Fig. 8 is a block system diagram showing the main parts of another embodiment of this invention, and Fig. 9 is a diagram showing the perfusion flow rate adjustment section of the embodiment shown in Fig. 1. A diagram showing experimental results of liquid pH control,
FIG. 10 is a block system diagram showing a conventional external circulation type lung assist device, and FIG. 11 is a waveform diagram showing the fluctuation characteristics of perfusate pH in the conventional device shown in FIG. 2... Dialyzer, 7, 8... Opening/closing valve, 10... Perfusate supply section, 11... Diffusion tube, 12... pH electrode, 19... CO 2 concentration meter, 30... pH adjustment liquid supply section , 31... pinch valve, 40... control section,
41...Display device, 42...Operation unit, 50...Injection flow rate adjustment unit, 51...Injection stop unit, 52, 53,
54...Opening/closing valve, 55...Side channel, 60...Central processing unit, 61...Read-only memory, 62...Setting switch, 63...Setting circuit, 64...I/O circuit, 65...Reading at any time Write memory, 66...p
H signal processing circuit, 67...A/D converter, 6
8, 68'...Drive circuit, 69...Timer, 90
...D/A converter.
Claims (1)
を介して接触させ、血液中の二酸化炭素成分を潅
流液中に移動させ、この潅流液にｐＨ調整液を注
入した後放散筒へ導き、不活性ガスと気液接触さ
せて上記二酸化炭素成分を炭酸ガスとして放散さ
せ、この炭酸ガスを除去した潅流液を上記放散筒
と上記透析器との間で循環させて使用する肺補助
装置において、 上記潅流液のｐＨが所定範囲になるように上記
ｐＨ調整液の注入流量を連続的に調整するための
注入流量調整部と、 上記潅流液のｐＨが警報範囲に達した場合に、
上記ｐＨ調整液の注入を停止する注入停止部と、 この注入停止と同時に、上記放散筒と上記透析
器との間の潅流液の透析器への流入通路と透析器
からの流出通路との間を側路させ、上記透析器を
通さずに潅流液を循環させるための側路手段と、 この側路手段がオンすると同時に上記透析器の
潅流液流入及び流出通路を閉塞するための閉塞手
段と、 上記の注入流量調整部、注入停止部、側路手段
及び閉塞手段とを制御するための制御手段とを設
けたことを特徴とする体外循環型肺補助装置。[Scope of Claim for Utility Model Registration] The patient's extracorporeally circulating blood and perfusate are brought into contact with each other through a membrane in the dialyzer, and the carbon dioxide component in the blood is transferred to the perfusate, and a pH adjustment solution is added to this perfusate. After being injected, the perfusate is introduced into a diffusion tube, and brought into gas-liquid contact with an inert gas to diffuse the carbon dioxide component as carbon dioxide gas, and the perfusate from which carbon dioxide gas has been removed is circulated between the diffusion tube and the dialyzer. an injection flow rate adjustment unit for continuously adjusting the injection flow rate of the pH adjustment liquid so that the pH of the perfusion liquid is within a predetermined range; If it reaches
an injection stop part that stops the injection of the pH adjustment liquid, and at the same time as the injection stop, between the diffusion cylinder and the dialyzer, the perfusion liquid flows between the inflow passage into the dialyzer and the outflow passage from the dialyzer; a bypass means for bypassing the perfusate and circulating the perfusate without passing through the dialyzer; and a blocking means for blocking the perfusate inflow and outflow passages of the dialyzer at the same time when the bypass means is turned on. . An extracorporeal circulation type lung assist device, comprising a control means for controlling the above-mentioned injection flow rate adjustment section, injection stop section, bypass means, and occlusion means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18417785U JPH0441869Y2 (en) | 1985-11-29 | 1985-11-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18417785U JPH0441869Y2 (en) | 1985-11-29 | 1985-11-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6292833U true JPS6292833U (en) | 1987-06-13 |
| JPH0441869Y2 JPH0441869Y2 (en) | 1992-10-01 |
Family
ID=31131604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18417785U Expired JPH0441869Y2 (en) | 1985-11-29 | 1985-11-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0441869Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3846333B2 (en) * | 2002-03-04 | 2006-11-15 | 松下電器産業株式会社 | Optical output device and information processing terminal |
-
1985
- 1985-11-29 JP JP18417785U patent/JPH0441869Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0441869Y2 (en) | 1992-10-01 |
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