JPH01140959U - - Google Patents
Info
- Publication number
- JPH01140959U JPH01140959U JP3671888U JP3671888U JPH01140959U JP H01140959 U JPH01140959 U JP H01140959U JP 3671888 U JP3671888 U JP 3671888U JP 3671888 U JP3671888 U JP 3671888U JP H01140959 U JPH01140959 U JP H01140959U
- Authority
- JP
- Japan
- Prior art keywords
- carbon dioxide
- perfusate
- blood
- gas
- 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
- 210000004072 lung Anatomy 0.000 claims description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims 26
- 229910002092 carbon dioxide Inorganic materials 0.000 claims 13
- 239000001569 carbon dioxide Substances 0.000 claims 13
- 239000008280 blood Substances 0.000 claims 7
- 210000004369 blood Anatomy 0.000 claims 7
- 238000009792 diffusion process Methods 0.000 claims 5
- 239000007789 gas Substances 0.000 claims 2
- 239000011261 inert gas Substances 0.000 claims 2
- 239000007788 liquid Substances 0.000 claims 2
- 239000012528 membrane Substances 0.000 claims 2
- 102000003846 Carbonic anhydrases Human genes 0.000 claims 1
- 108090000209 Carbonic anhydrases Proteins 0.000 claims 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims 1
- 101710088194 Dehydrogenase Proteins 0.000 claims 1
- 229910052801 chlorine Inorganic materials 0.000 claims 1
- 239000000460 chlorine Substances 0.000 claims 1
- -1 chlorine ions Chemical class 0.000 claims 1
- 238000001514 detection method Methods 0.000 claims 1
- 238000000502 dialysis Methods 0.000 claims 1
- 239000012530 fluid Substances 0.000 claims 1
- 230000010412 perfusion Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
Description
第１図はこの考案の体外循環型肺補助装置の実
施例を示すブロツク系統図、第２図は第１図の実
施例の要部を示すブロツク系統図、第３図は第１
図の実施例のコントロールプログラムの割込ルー
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図はこの考案の他の実施例を示すブ
ロツク系統図、第６図はその要部を示すブロツク
系統図、第７図は第５図の実施例のコントロール
プログラムの割込ルーチンを示すフローチヤート
、第８図は第５図の実施例のバツクグラウンドル
ーチンを示すフローチヤート、第９図は従来の体
外循環型肺補助装置を示すブロツク系統図である
。
Fig. 1 is a block system diagram showing an embodiment of the extracorporeal circulation type lung assist device of this invention, Fig. 2 is a block system diagram showing the main parts of the embodiment of Fig.
FIG. 4 is a flowchart showing the interrupt routine of the control program of the embodiment shown in FIG. 1. FIG. 5 is a block diagram showing another embodiment of the invention. 6 is a block system diagram showing the main parts thereof, FIG. 7 is a flowchart showing the interrupt routine of the control program of the embodiment of FIG. 5, and FIG. 8 is the background of the embodiment of FIG. 5. FIG. 9 is a flowchart showing the routine and is a block system diagram showing a conventional extracorporeal circulation type lung assist device.
Claims (1)
血液と潅流液とを透析器内で膜を介して接触させ
、血液中の二酸化炭素成分を潅流液中へ移動させ
て放散筒に導き、炭酸脱水素酵素の存在下に不活
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、 上記潅流液中のクロルイオン濃度を検出する手
段と、 この検出信号と予め設定された正常値とを比較
する手段と、 その比較結果により上記潅流液中のクロルイオ
ンが予め設定された正常値を越えた場合に、上記
放散筒内の潅流液の交換を自動的に行う手段とを
設けた体外循環型肺補助装置。 (2) 血液ポンプにより脱血した患者の体外循環
血液と潅流液とを透析器内で膜を介して接触させ
、血液中の二酸化炭素成分を潅流液中へ移動させ
て放散筒に導き、炭酸脱水素酵素の存在下に不活
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、 炭酸ガス除去流量の許容値を設定する手段と、 上記炭酸ガス除去流量を検出する手段と、 その検出した炭酸ガス除去流量と上記許容値と
を比較する手段と、 その比較結果により上記炭酸ガス除去流量が上
記許容値を下回つた場合に、上記放散筒内の潅流
液の交換を自動的に行う手段とを設けた体外循環
型肺補助装置。[Scope of Claim for Utility Model Registration] (1) Extracorporeally circulating blood from a patient whose blood has been removed by a blood pump is brought into contact with perfusate via a membrane in a dialyzer, and carbon dioxide components in the blood are transferred into the perfusate. The carbon dioxide component is diffused as carbon dioxide gas by bringing it into gas-liquid contact with an inert gas in the presence of carbonic anhydrase, and the perfusate from which carbon dioxide gas has been removed is passed through the diffusion tube and the dialysis tube. In a lung support device that is used by circulating it between the perfusion fluid and the perfusate, there is provided a means for detecting the concentration of chloride ions in the perfusate, a means for comparing this detection signal with a preset normal value, and a means for comparing the detected signal with a preset normal value, based on the result of the comparison. An extracorporeal circulation type lung assist device comprising means for automatically replacing the perfusate in the diffusion tube when chlorine ions in the perfusate exceed a preset normal value. (2) The patient's extracorporeally circulating blood, which has been drained using a blood pump, is brought into contact with the perfusate through a membrane in the dialyzer, and the carbon dioxide component in the blood is moved into the perfusate and guided to the diffusion tube, where carbon dioxide is removed. The carbon dioxide component is diffused as carbon dioxide by bringing it into gas-liquid contact with an inert gas in the presence of a dehydrogenase, and the perfusate from which carbon dioxide has been removed is circulated between the diffusion cylinder and the dialyzer. In the lung assist device to be used, means for setting a permissible value for the carbon dioxide removal flow rate, means for detecting the carbon dioxide removal flow rate, means for comparing the detected carbon dioxide removal flow rate with the above permissible value, and an extracorporeal circulation type lung auxiliary device comprising means for automatically replacing the perfusate in the diffusion cylinder when the carbon dioxide removal flow rate falls below the permissible value as a result of the comparison.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3671888U JPH052188Y2 (en) | 1988-03-18 | 1988-03-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3671888U JPH052188Y2 (en) | 1988-03-18 | 1988-03-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01140959U true JPH01140959U (en) | 1989-09-27 |
| JPH052188Y2 JPH052188Y2 (en) | 1993-01-20 |
Family
ID=31263308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3671888U Expired - Lifetime JPH052188Y2 (en) | 1988-03-18 | 1988-03-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH052188Y2 (en) |
-
1988
- 1988-03-18 JP JP3671888U patent/JPH052188Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH052188Y2 (en) | 1993-01-20 |
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