WO1997041940A1 - Systeme de filtration pour autotransfusion continue - Google Patents
Systeme de filtration pour autotransfusion continue Download PDFInfo
- Publication number
- WO1997041940A1 WO1997041940A1 PCT/US1997/007606 US9707606W WO9741940A1 WO 1997041940 A1 WO1997041940 A1 WO 1997041940A1 US 9707606 W US9707606 W US 9707606W WO 9741940 A1 WO9741940 A1 WO 9741940A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- blood
- filter
- collection chamber
- outlet
- filtration system
- Prior art date
Links
- 238000001914 filtration Methods 0.000 title claims description 47
- 210000004369 blood Anatomy 0.000 claims description 89
- 239000008280 blood Substances 0.000 claims description 89
- 239000012530 fluid Substances 0.000 claims description 42
- 238000004891 communication Methods 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 26
- 238000001802 infusion Methods 0.000 description 17
- 208000007536 Thrombosis Diseases 0.000 description 15
- 210000003281 pleural cavity Anatomy 0.000 description 13
- 238000010992 reflux Methods 0.000 description 11
- 230000009471 action Effects 0.000 description 10
- 239000007789 gas Substances 0.000 description 10
- 239000000356 contaminant Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 6
- 210000004072 lung Anatomy 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 210000000038 chest Anatomy 0.000 description 4
- 229920000728 polyester Polymers 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 208000015181 infectious disease Diseases 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 230000000750 progressive effect Effects 0.000 description 3
- 210000001124 body fluid Anatomy 0.000 description 2
- 239000010839 body fluid Substances 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 206010067484 Adverse reaction Diseases 0.000 description 1
- 208000035473 Communicable disease Diseases 0.000 description 1
- 206010011224 Cough Diseases 0.000 description 1
- 206010014561 Emphysema Diseases 0.000 description 1
- 102000009123 Fibrin Human genes 0.000 description 1
- 108010073385 Fibrin Proteins 0.000 description 1
- BWGVNKXGVNDBDI-UHFFFAOYSA-N Fibrin monomer Chemical compound CNC(=O)CNC(=O)CN BWGVNKXGVNDBDI-UHFFFAOYSA-N 0.000 description 1
- 102000008946 Fibrinogen Human genes 0.000 description 1
- 108010049003 Fibrinogen Proteins 0.000 description 1
- 230000006838 adverse reaction Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 235000012489 doughnuts Nutrition 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 210000003743 erythrocyte Anatomy 0.000 description 1
- 229950003499 fibrin Drugs 0.000 description 1
- 229940012952 fibrinogen Drugs 0.000 description 1
- 229920002457 flexible plastic Polymers 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000008570 general process Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 210000002381 plasma Anatomy 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 230000004202 respiratory function Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 210000000115 thoracic cavity Anatomy 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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
- A61M1/60—Containers for suction drainage, adapted to be used with an external suction source
- A61M1/61—Two- or three-bottle systems for underwater drainage, e.g. for chest cavity drainage
-
- 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
- A61M1/3627—Degassing devices; Buffer reservoirs; Drip chambers; Blood filters
-
- 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
- A61M2205/75—General characteristics of the apparatus with filters
- A61M2205/7554—General characteristics of the apparatus with filters with means for unclogging or regenerating filters
Definitions
- FIG. 1 is a simplified block diagram showing the basic operation of a prior art autotransfusion system
- FIG. 2 is a partial cross section showing an exploded view of an autotransfusion chest drainage unit according to the present invention
- infusion tubing 15 blood collected from the patient's pleural and mediastinal cavities travels through infusion tubing 15 where the blood enters the collection chamber 16 through inlet port 19. As the blood enters through inlet port 19 it falls through a gross filter 20 that removes clots and other contaminants from the blood. Once filtered, the blood collects at the bottom portion of collection chamber 16 where it is again refiltered using a filter assembly 37 prior to reinfusion. As the blood is refiltered through filter assembly 37, it runs up through a drop tube 31 that is attached to assembly 37 and exits at outlet port 22. In the preferred embodiment, outlet port 22 is located at the top portion of CDU 12. In alternative embodiments, the egress of blood through outlet port 22 can be from any suitable site along the surface of collection chamber 16 where the infusion tubing 15 may be attached to outlet port 22.
Landscapes
- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Biomedical Technology (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Pulmonology (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)
Abstract
Système de filtration progressive (10) pour une unité de drainage thoracique utilisée lors d'une autotransfusion continue, comprenant un filtre grossier (20) qui filtre le sang entrant dans la partie d'admission (19) d'une chambre de collecte (16) et un ensemble classique à filtre fin micronique (37) situé au fond de la chambre de collecte (16) et destiné à filtrer de nouveau le sang collecté, avant la reperfusion du sang filtré dans le patient. L'ensemble à filtre micronique (37) comprend un chapeau de valve (38) relié de manière étanche à un compte-gouttes (31) qui met l'ensemble à filtre (37) en communication fluidique avec un orifice de sortie (22) situé dans la partie supérieure de la chambre de collecte (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU29333/97A AU2933397A (en) | 1996-05-07 | 1997-05-06 | Continuous autotransfusion filtration system |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US1792196P | 1996-05-07 | 1996-05-07 | |
| US60/017,921 | 1996-05-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1997041940A1 true WO1997041940A1 (fr) | 1997-11-13 |
Family
ID=21785286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US1997/007606 WO1997041940A1 (fr) | 1996-05-07 | 1997-05-06 | Systeme de filtration pour autotransfusion continue |
Country Status (2)
| Country | Link |
|---|---|
| AU (1) | AU2933397A (fr) |
| WO (1) | WO1997041940A1 (fr) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4631050A (en) * | 1985-09-24 | 1986-12-23 | Reed Charles C | Autotransfusion system and method |
| US4911697A (en) * | 1988-08-02 | 1990-03-27 | Sherwood Medical Company | Chest drainage unit having increased airflow capacity with capability to dampon noise |
| US5624418A (en) * | 1995-10-04 | 1997-04-29 | Shepard; R. David | Collection and separation device |
-
1997
- 1997-05-06 AU AU29333/97A patent/AU2933397A/en not_active Abandoned
- 1997-05-06 WO PCT/US1997/007606 patent/WO1997041940A1/fr active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4631050A (en) * | 1985-09-24 | 1986-12-23 | Reed Charles C | Autotransfusion system and method |
| US4911697A (en) * | 1988-08-02 | 1990-03-27 | Sherwood Medical Company | Chest drainage unit having increased airflow capacity with capability to dampon noise |
| US5624418A (en) * | 1995-10-04 | 1997-04-29 | Shepard; R. David | Collection and separation device |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2933397A (en) | 1997-11-26 |
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