FI58074C - APPARAT FOER REGLERING AV DIALYSBEHANDLING - Google Patents
APPARAT FOER REGLERING AV DIALYSBEHANDLING Download PDFInfo
- Publication number
- FI58074C FI58074C FI791772A FI791772A FI58074C FI 58074 C FI58074 C FI 58074C FI 791772 A FI791772 A FI 791772A FI 791772 A FI791772 A FI 791772A FI 58074 C FI58074 C FI 58074C
- Authority
- FI
- Finland
- Prior art keywords
- dialysis
- weight change
- weight
- patient
- measuring
- Prior art date
Links
Classifications
-
- 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
-
- 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
-
- 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
- A61M1/1601—Control or regulation
- A61M1/1603—Regulation parameters
- A61M1/1611—Weight of the patient
-
- 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
- A61M1/1621—Constructional aspects thereof
- A61M1/1643—Constructional aspects thereof with weighing of fresh and used dialysis fluid
Landscapes
- Health & Medical Sciences (AREA)
- Urology & Nephrology (AREA)
- Heart & Thoracic Surgery (AREA)
- Emergency Medicine (AREA)
- Anesthesiology (AREA)
- Engineering & Computer Science (AREA)
- Vascular Medicine (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- External Artificial Organs (AREA)
Description
58074 kuttaa mekaanisesti muuttamalla joko veren tai dialyysinesteen painetta toisiinsa nähden. Jälkimmäiseen voidaan vaikuttaa lähinnä muuttamalla dialyysinesteen koostumusta siten, että dialyysinesteen os-molaliteetti muuttuu veren osmolaliteettiin nähden. Myöskin on ennestään tunnettu erinäisiä menetelmiä ja laitteistoja, joiden avulla voidaan sekä dialyysikalvon yli vaikuttavaa hydraulista painetta muuttaa että muuttaa dialyysinesteen koostumusta ja tätä kautta - 1 säätää dialyysikalvon yli vaikuttavaa osmoottista paine-eroa.58074 mechanically itches by changing the pressure of either blood or dialysis fluid relative to each other. The latter can be influenced mainly by changing the composition of the dialysis fluid so that the osmolality of the dialysis fluid changes with respect to the osmolality of the blood. Also known are various methods and apparatus for changing both the hydraulic pressure acting across the dialysis diaphragm and changing the composition of the dialysis fluid, and thereby - 1 adjusting the osmotic pressure difference acting across the dialysis diaphragm.
Nyt esillä oleva keksintö kohdistuu automaattiseen laitteistoon, jossa käytetään ultrafiltraatiota mittaavaa viestiä ohjaamaan joko kumpaakin tai jompaa kumpaa dialyysikalvon yli vaikuttavan paine-eron komponenttia. Laitteistoon sisältyy järjestelmä jonka avulla käyttäjä voi asettaa haluttua ultrafiltraationopeutta vastaavan ase-tusviestin ja laitteen automaattinen toiminta on suunniteltu siten, että laitteisto säätää dialyysikalvon yli vaikuttavaa paine-eroa sellaiseen arvoon, että saavutettu ultrafiltraationopeus keskimäärin vastaa asetettua tavoitearvoa. Säätämällä laitteiston aikavakiot ym. säätösuureet sopiviksi voidaan täten saavuttaa hyvinkin tasainen ultrafiltraationopeus potilaan hoidon aikana, joka on oleellinen parannus hoidon laadussa.The present invention is directed to an automatic apparatus using an ultrafiltration measuring message to control either or both of the differential pressure components acting across the dialysis membrane. The apparatus includes a system that allows the user to set a setting message corresponding to the desired ultrafiltration rate, and the automatic operation of the apparatus is designed to adjust the differential pressure across the dialysis diaphragm to an average ultrafiltration rate. By adjusting the time constants and other control variables of the apparatus to suit, a very uniform ultrafiltration rate can thus be achieved during the treatment of the patient, which is a substantial improvement in the quality of the treatment.
Keksinnön mukaisen laitteiston tunnusmerkit ilmenevät oheisista patenttivaatimuksista.The features of the apparatus according to the invention appear from the appended claims.
Seuraavassa selostetaan yksityiskohtaisemmin kahta keksinnön suoritusmuotoa viittaamalla oheisiin piirustuksiin, joissa kuvio 1 esittää hemodialyysiin käytetyn laitteiston toiminnallista lohkokaaviota ja kuvio 2 esittää peritonealidialyysiin käytetyn laitteiston toiminnallista lohkokaaviota.Two embodiments of the invention will now be described in more detail with reference to the accompanying drawings, in which Figure 1 shows a functional block diagram of an apparatus used for hemodialysis and Figure 2 shows a functional block diagram of an apparatus used for peritoneal dialysis.
Kuvion 1 mukaiseen laitteistoon kuuluu dialysaattori 1, jossa on dialyysikalvo 2. Pumpulla 3 kierrätetään verta veripiirissä 5, joka otetaan potilaasta 10. Pumpuilla 4 kierrätetään dialyysinestettä piirissä 6, jolloin veri ja dialyysineste kulkevat dialyysikalvon 2 vastakkaisilla puolilla. Pumpuilla 4 voidaan dialyysinesteen painetta dialysaattorissa 1 muuttaa. Dialyysinestettä syötetään piiriin 6 dialyysinesteen sekoitusyksiköstä 11. Viitenumerolla 7 on merkitty 58074 puhtaan veden syöttöä ja viitenumerolla 8 dialyysinestetiivisteen syöttöä sekoitusyksikköön 11. Kohdasta 9 tapahtuu käytetyn dialyysi-nesteen poisto.The apparatus of Figure 1 comprises a dialyzer 1 with a dialysis membrane 2. The pump 3 circulates blood in a blood circuit 5 taken from a patient 10. The pumps 4 circulate dialysis fluid in circuit 6, with blood and dialysis fluid running on opposite sides of the dialysis membrane 2. With the pumps 4, the pressure of the dialysis fluid in the dialyzer 1 can be changed. The dialysis fluid is fed to the circuit 6 from the dialysis fluid mixing unit 11. Reference numeral 7 denotes the supply of pure water 58074 and reference numeral 8 denotes the supply of the dialysis fluid concentrate to the mixing unit 11. From step 9 the spent dialysis fluid is removed.
Vaakayksiköllä 12 mitataan potilaan 10 painonmuutosta dialyysihoidon aikana. Painonmuutosviesti johdetaan dialyysihoitoa valvovaan ja säätävään elimeen 15, johon myös ajanmittausyksikkö 13 on kytketty. Asetusarvon ohjausviestillä 14 on valvonta- ja säätöelimeen 15 asetettu haluttu painonmuutosnopeuden tavoitearvo. Potilaan todellinen painonmuutosnopeus, eli painonmuutos aikayksikköä kohti saadaan vaakayksikön 12 ja ajanmittausyksikön 13 avulla. Valvonta-ja säätöelin 15 suorittaa painonmuutosnopeuden asetusarvon 14 ja todellisen arvon vertailun, minkä perusteella se säätää pumppujen 3 ja 4 ja/tai sekoitusyksikön 11 toimintaa siten, että sopiva paine-ero dialyysikalvon 2 yli saavutetaan ja tämän seurauksena sopiva painonmuutos eli ultrafiltraatio potilaassa 10. Haluttaessa voidaan laitteistoon lisätä kalvon 2 yli vaikuttavaa paine-eroa mittaava elin, jonka mittausviestiä voidaan myös käyttää säätöön.The horizontal unit 12 measures the weight change of the patient 10 during dialysis treatment. The weight change message is passed to the dialysis treatment monitoring and regulating member 15, to which the time measuring unit 13 is also connected. The setpoint control message 14 has a desired weight change rate target value set in the monitoring and control member 15. The patient's actual rate of weight change, i.e. the weight change per unit time, is obtained by means of a horizontal unit 12 and a time measuring unit 13. The monitoring and regulating member 15 performs a comparison of the weight change rate setpoint 14 and the actual value, on the basis of which it adjusts the operation of the pumps 3 and 4 and / or the mixing unit 11 so that a suitable pressure difference across the dialysis diaphragm 2 is achieved. a means for measuring the pressure difference across the diaphragm 2 can be added to the apparatus, the measurement message of which can also be used for adjustment.
Kuviossa 2 on kuviota 1 vastaavista osista käytetty samoja viitenumerolta. Laitteisto eroaa edellisestä siinä, että siihen kuuluu säiliö 16, missä dialyysinesteen määrä mitataan ennen dialyysiä sekä säiliö 17, missä dialyysinesteen määrä mitataan dialyysin jälkeen. Esitetyssä tapauksessa tähän mittaukseen käytetään vaakalait-teita 12' ja 12", jotka punnitsevat säiliöiden 16 ja 17 painoja ja joiden punnitustulosten erotuksena valvonta- ja säätöelin 15 laskee potilaan 10 dialyysistä aiheutuvan painonmuutoksen. On selvää, että myös muita tunnettuja nesteen määrän mittaustapoja voidaan käyttää. Samalla tavoin kuin kuvion 1 tapauksessa valvonta- ja säätöelin 15 vertaa potilaan painonmuutosviestin ja ajanmittausyksikön 3 avulla muodostettua painonmuutosnopeutta asetusarvona 14 annettuun painonmuutosnopeuden tavoitearvoon ja tämän vertailun perusteella ohjaa dialyysinesteen sekoitusyksikköä 11 siten, että sopiva osmoottinen paine-ero saavutetaan dialyysikalvona toimivan potilaan vatsakalvon yli, ja tämän tuloksena sopiva uitrafiltraatio potilaassa 10.In Fig. 2, the same parts of Fig. 1 are used for the same reference numerals. The apparatus differs from the former in that it comprises a reservoir 16 where the amount of dialysis fluid is measured before dialysis and a reservoir 17 where the amount of dialysis fluid is measured after dialysis. In the case shown, horizontal devices 12 'and 12 "are used for this measurement, which weigh the weights of the containers 16 and 17 and whose weighing results the monitoring and control member 15 calculate the weight change due to dialysis of the patient 10. It is clear that other known fluid measurement methods can be used. As in the case of Fig. 1, the monitoring and regulating member 15 compares the weight change rate generated by the patient's weight change message and the timing unit 3 with the target weight change rate set at 14 and controls the dialysis fluid mixing unit 11 so that a suitable osmotic pressure difference resulting in appropriate ultrafiltration in the patient 10.
Claims (4)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI791772A FI58074C (en) | 1979-06-01 | 1979-06-01 | APPARAT FOER REGLERING AV DIALYSBEHANDLING |
DE19803019353 DE3019353A1 (en) | 1979-06-01 | 1980-05-21 | APPARATUS FOR DIALYSIS TREATMENT |
SE8004072A SE8004072L (en) | 1979-06-01 | 1980-05-30 | APPLICATION FOR PERFORMING DIALYSIS |
FR8012092A FR2457695A1 (en) | 1979-06-01 | 1980-05-30 | MEDICAL DEVICE FOR DIALYSIS |
GB8017743A GB2052303B (en) | 1979-06-01 | 1980-05-30 | Dialysis apparatus |
JP7265880A JPS5623962A (en) | 1979-06-01 | 1980-05-30 | Dialysis therapeutic apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI791772A FI58074C (en) | 1979-06-01 | 1979-06-01 | APPARAT FOER REGLERING AV DIALYSBEHANDLING |
FI791772 | 1979-06-01 |
Publications (2)
Publication Number | Publication Date |
---|---|
FI58074B FI58074B (en) | 1980-08-29 |
FI58074C true FI58074C (en) | 1980-12-10 |
Family
ID=8512698
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI791772A FI58074C (en) | 1979-06-01 | 1979-06-01 | APPARAT FOER REGLERING AV DIALYSBEHANDLING |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS5623962A (en) |
DE (1) | DE3019353A1 (en) |
FI (1) | FI58074C (en) |
FR (1) | FR2457695A1 (en) |
GB (1) | GB2052303B (en) |
SE (1) | SE8004072L (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57203450A (en) * | 1981-06-08 | 1982-12-13 | Asahi Medical Co | Ultrafiltration apparatus |
JPS59105458A (en) * | 1982-12-10 | 1984-06-18 | 株式会社 日本メデイカル・サプライ | Automatic abdominal membrane irrigation apparatus |
GB2235776A (en) * | 1989-08-10 | 1991-03-13 | Univ London | Measuring the fluid balance of a patient during surgery |
DK172894B1 (en) * | 1991-01-03 | 1999-09-27 | Niels Aage Aunsholt | hemodialysis |
IT1279572B1 (en) * | 1995-05-30 | 1997-12-16 | Hospal Dasco Spa | METHOD AND APPARATUS FOR WASHING A FILTER FOR DIALYSIS. |
IT1276468B1 (en) * | 1995-07-04 | 1997-10-31 | Hospal Dasco Spa | AUTOMATIC DIALYSIS METHOD AND EQUIPMENT |
IT1391086B1 (en) | 2008-07-09 | 2011-11-18 | Gambro Lundia Ab | EXTRACORPOREO BLOOD TREATMENT SYSTEM |
ES2565351T3 (en) | 2012-09-21 | 2016-04-04 | Gambro Lundia Ab | A control device for extracorporeal blood treatment |
US9440017B2 (en) | 2013-03-14 | 2016-09-13 | Baxter International Inc. | System and method for performing alternative and sequential blood and peritoneal dialysis modalities |
EP3374000B1 (en) | 2015-11-09 | 2021-04-21 | Gambro Lundia AB | Apparatus for extracorporeal blood treatment i |
CN113730689A (en) * | 2021-09-08 | 2021-12-03 | 吉林大学 | Weighing-based hemodialysis ultrafiltration volume and ultrafiltration rate real-time monitoring system and method |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2101168B1 (en) * | 1971-01-12 | 1972-05-25 | B. Braun Melsungen AG, 3508 MeIsungen | Dosing system for peritoneal dialysis |
FR2366023A1 (en) * | 1976-07-30 | 1978-04-28 | Inst Nat Sante Rech Med | METHOD AND APPARATUS FOR ADJUSTING THE CONDITIONS OF HEMODIALYSIS |
DE2644584A1 (en) * | 1976-10-02 | 1978-04-06 | Klauschenz & Perrot | DEVICE FOR DIALYZING THE BLOOD OF A PATIENT |
FR2371931A1 (en) * | 1976-11-24 | 1978-06-23 | Abg Semca | Peritoneal dialysis - includes pumping dialysis liq. into peritoneal cavity and after diffusion for given time, draining the liq. from the cavity in two stages |
DE2734561A1 (en) * | 1977-07-30 | 1979-02-08 | Fresenius Chem Pharm Ind | DEVICE FOR ULTRAFILTRATION CONTROL IN HAEMODIALYSIS |
-
1979
- 1979-06-01 FI FI791772A patent/FI58074C/en not_active IP Right Cessation
-
1980
- 1980-05-21 DE DE19803019353 patent/DE3019353A1/en not_active Withdrawn
- 1980-05-30 JP JP7265880A patent/JPS5623962A/en active Pending
- 1980-05-30 SE SE8004072A patent/SE8004072L/en not_active Application Discontinuation
- 1980-05-30 GB GB8017743A patent/GB2052303B/en not_active Expired
- 1980-05-30 FR FR8012092A patent/FR2457695A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
FR2457695A1 (en) | 1980-12-26 |
SE8004072L (en) | 1980-12-02 |
DE3019353A1 (en) | 1980-12-04 |
GB2052303A (en) | 1981-01-28 |
FI58074B (en) | 1980-08-29 |
JPS5623962A (en) | 1981-03-06 |
GB2052303B (en) | 1983-08-24 |
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Legal Events
Date | Code | Title | Description |
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MM | Patent lapsed |
Owner name: INSTRUMENTARIUM OY |