WO2000069491A1 - Vorrichtung zum durchströmen von menschlichen und/oder tierischen organen oder extremitäten - Google Patents
Vorrichtung zum durchströmen von menschlichen und/oder tierischen organen oder extremitäten Download PDFInfo
- Publication number
- WO2000069491A1 WO2000069491A1 PCT/EP2000/004045 EP0004045W WO0069491A1 WO 2000069491 A1 WO2000069491 A1 WO 2000069491A1 EP 0004045 W EP0004045 W EP 0004045W WO 0069491 A1 WO0069491 A1 WO 0069491A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- liquids
- chamber
- wheels
- mixing
- mixture
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D11/00—Control of flow ratio
- G05D11/008—Control of flow ratio involving a fluid operating a pump motor
-
- 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
- A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
- A61M1/3613—Reperfusion, e.g. of the coronary vessels, e.g. retroperfusion
-
- 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
- A61M1/36—Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
- A61M1/3621—Extra-corporeal blood circuits
- A61M1/367—Circuit parts not covered by the preceding subgroups of group A61M1/3621
-
- 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
- A61M2205/00—General characteristics of the apparatus
- A61M2205/33—Controlling, regulating or measuring
- A61M2205/3379—Masses, volumes, levels of fluids in reservoirs, flow rates
- A61M2205/3396—Reservoirs being alternately filled and emptied for measuring flow rate or delivered volume
Definitions
- the invention relates to a device for flowing through human and / or animal organs or extremities with a mixture of liquids, preferably with mixtures of blood and pharmaceuticals, with at least one pump device for circulating the liquids and with at least one mixing unit.
- a hose and cannula system is known as a device for flowing human and / or animal organs or extremities with a mixture of liquids, in which the mixture of blood and pharmaceuticals is achieved via two roller purapens.
- this device can only be operated by cardiac technicians and can therefore only be used for cardiac surgery or vascular surgery applications.
- Another device of the type mentioned at the beginning is mentioned in EP 0 855 192 A2, in which blood and pharmaceuticals run into a container from which an infusion cannula is fed.
- the entire structure of this device is very complex and therefore complicated.
- this device does not generate a continuous flow, which can lead to supply problems for the organ to be perfused or the extremity.
- the invention is based on the object of proposing a device of the type mentioned at the outset which can be operated by any doctor after a brief introduction and in which continuous perfusion of the organ or the extremity is ensured.
- the invention solves the problem with a device for flowing human and / or animal organs or extremities with a mixture of liquids, preferably with mixtures of blood and pharmaceuticals, with at least one pump device for converting the liquids and with at least one mixing unit, the mixing unit has at least two chamber wheels for metered mixing of the liquids.
- the desired mixing ratio of the liquids can be set via the diameter ratio, the chamber size and / or the speed of the chamber wheels. If the corresponding chamber wheels have been selected, it is ensured that the mixing ratio of the liquids is constant. As a result, the device can be operated immediately even after brief instruction by the operating personnel. If you want to change the mixing ratio, you can replace the chamber wheels of the mixing unit with those with the corresponding diameter ratio or, if necessary, change the speed ratio of the chamber wheels.
- the pressure and the volume of the liquids can advantageously be adjustable.
- the two chamber wheels In order to ensure that the two chamber wheels always mix the liquids to be mixed together in the desired mixing ratio, they can be coupled to one another in terms of drive.
- the chamber wheels can be mounted on two independent axles and connected to each other by a gear.
- the gear ratio of the gearbox determines the desired mixing ratio in addition to the diameter and chamber size of the wheels. If the gearbox is a manual gearbox, the mixing ratio can be changed accordingly with a short handle.
- the two chamber wheels can also be arranged on a common axis for driving coupling.
- the at least one mixing unit and the at least one pump device can be combined in one unit.
- the at least one pump can advantageously be a centrifugal pump, which circulates blood, in particular, much more gently than, for example, a roller pump.
- the pump can preferably be pressure-controlled or flow-controlled.
- the single figure shows a schematic diagram of a device 10 for flowing through human and / or animal organs or extremities with a mixture of liquids, preferably with mixtures of blood and pharmaceuticals.
- the device 10 has a pump device 11 with which blood is drawn in from the body via a line 12 and is passed on to a mixing unit 14 via a line 13.
- a storage container 15 contains a pharmaceutical solution which has a Line 16 is passed on to the mixing unit 14.
- the mixing unit 14 has two chamber wheels 17 and 18.
- the two chamber wheels 17 and 18 have different diameters, the ratio of the two diameters determining the mixing ratio of the blood with the pharmaceutical solution. If you want to change the mixing ratio, you can replace the chamber wheels 17 and 18 of the mixing unit 14 with other chamber wheels with a corresponding diameter ratio.
- the two chamber wheels 17 and 18 are coupled to one another in terms of drive via a common shaft 19.
- the shaft 19 thus ensures that the mixing ratio remains unchanged.
- the blood and pharmaceutical volume metered by the mixing unit 14 is brought together in a branch 20 and thus ultimately mixed. This mixture is then fed to the organ to be flowed through or to the extremity to be flowed through.
- the two chamber wheels 17 and 18 could also be arranged on separate axles and coupled via a gear.
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Public Health (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Cardiology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Anesthesiology (AREA)
- Veterinary Medicine (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- External Artificial Organs (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU45621/00A AU4562100A (en) | 1999-05-12 | 2000-05-06 | Method for passing a mixture of liquid through human and/or animal organs or extremities |
EP00927146A EP1177000A1 (de) | 1999-05-12 | 2000-05-06 | Vorrichtung zum durchströmen von menschlichen und/oder tierischen organen oder extremitäten |
JP2000617950A JP2002543932A (ja) | 1999-05-12 | 2000-05-06 | 人間及び/又は動物の器官又は四肢の貫流装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19922015.8 | 1999-05-12 | ||
DE19922015 | 1999-05-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000069491A1 true WO2000069491A1 (de) | 2000-11-23 |
Family
ID=7907917
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2000/004045 WO2000069491A1 (de) | 1999-05-12 | 2000-05-06 | Vorrichtung zum durchströmen von menschlichen und/oder tierischen organen oder extremitäten |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1177000A1 (de) |
JP (1) | JP2002543932A (de) |
AU (1) | AU4562100A (de) |
WO (1) | WO2000069491A1 (de) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1029592A (fr) * | 1951-05-10 | 1953-06-03 | Ile D Etudes Et De Rech S Meca | Perfectionnements apportés aux moyens pour assurer les desages respectifs d'au moins deux fluides à mélanger |
DE2257125A1 (de) * | 1972-11-17 | 1974-05-22 | Siegfried Blanke | Proportionalfluessigkeitmischapparat |
US5702358A (en) * | 1995-02-23 | 1997-12-30 | Sorin Biomedical Inc. | Cardioplegia delivery apparatus and method of use |
EP0855192A2 (de) | 1997-01-24 | 1998-07-29 | Friedhelm Beyersdorf | Verfahren und Reperfusionsvorrichtung |
-
2000
- 2000-05-06 AU AU45621/00A patent/AU4562100A/en not_active Abandoned
- 2000-05-06 EP EP00927146A patent/EP1177000A1/de not_active Withdrawn
- 2000-05-06 JP JP2000617950A patent/JP2002543932A/ja not_active Ceased
- 2000-05-06 WO PCT/EP2000/004045 patent/WO2000069491A1/de not_active Application Discontinuation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1029592A (fr) * | 1951-05-10 | 1953-06-03 | Ile D Etudes Et De Rech S Meca | Perfectionnements apportés aux moyens pour assurer les desages respectifs d'au moins deux fluides à mélanger |
DE2257125A1 (de) * | 1972-11-17 | 1974-05-22 | Siegfried Blanke | Proportionalfluessigkeitmischapparat |
US5702358A (en) * | 1995-02-23 | 1997-12-30 | Sorin Biomedical Inc. | Cardioplegia delivery apparatus and method of use |
EP0855192A2 (de) | 1997-01-24 | 1998-07-29 | Friedhelm Beyersdorf | Verfahren und Reperfusionsvorrichtung |
Also Published As
Publication number | Publication date |
---|---|
AU4562100A (en) | 2000-12-05 |
EP1177000A1 (de) | 2002-02-06 |
JP2002543932A (ja) | 2002-12-24 |
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