US3593854A - Blood treating and filtering apparatus - Google Patents
Blood treating and filtering apparatus Download PDFInfo
- Publication number
- US3593854A US3593854A US882663A US3593854DA US3593854A US 3593854 A US3593854 A US 3593854A US 882663 A US882663 A US 882663A US 3593854D A US3593854D A US 3593854DA US 3593854 A US3593854 A US 3593854A
- Authority
- US
- United States
- Prior art keywords
- blood
- mat
- filter
- upstream
- downstream
- 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.)
- Expired - Lifetime
Links
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
- B01D35/153—Anti-leakage or anti-return valves
-
- 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
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
- A61M5/165—Filtering accessories, e.g. blood filters, filters for infusion liquids
-
- 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
- A61M1/3633—Blood component filters, e.g. leukocyte filters
Landscapes
- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- External Artificial Organs (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
Abstract
Description
Claims (16)
- 2. downstream from the blood clot filter member a first meat of finely subdivided blood-contact material comprising a solid fibrous material the fibers of which are nondegrading to the blood and characterized by the ability selectively to adhere the aggregates,
- 2. The apparatus of claim 1 wherein the vessel has resiliently deformable sidewalls on the upstream side of the filter assembly adapted to be compressed and re-expanded for pumping blood through the apparatus.
- 3. The apparatus of claim 1 including a. a first perforate support member between the blood clot filter member and the first mat, supporting the blood clot filter member and compressing the first mat, and b. a second perforate support member between the first and second mats supporting the first mat and compressing the second mat.
- 3. downstream from the first mat a second mat of finely subdivided blood-contact material comprising a solid fibrous material the fibers of which are nondegrading to the blood and characterized by the ability selectively to adhere the aggregates, the second mat having a density greater than the first mat for selectively removing aggregates of smaller size,
- 4. downstream from the second mat fiber filter member for filtering from the blood fragments of mat fiber filter material, c. means for introducing stored blood into a inlet port and for passing it through the filter assembly, d. and means for withdrawing the treated blood from the outlet port.
- 4. The apparatus of claim 3 wherein the blood clot filter member comprises a dome-shaped screen support at its open end on the first support member, the latter having a central opening through which the first mat projects into the spacing defined by the screen.
- 5. The apparatus of claim 4 including inwardly extending projections on the first support member engaging the first mat to prevent free escape of the latter into the space defined by the screen.
- 6. The apparatus of claim 1 including valve means adjacent the outlet port operable to prevent back flow of blood from the outlet port into the vessel.
- 7. The apparatus of claim 1 wherein the second mat of fibrous material has a density of about 0.1 to 0.4 grams per cc.
- 8. The apparatus of claim 1 wherein the mat fiber has a diameter not substantially great than about 30 microns, the density of the second mat is about 0.2 grams per cc. and the density of the first mat is about 1/4 - 1/2 the density of the second mat.
- 9. A high volume, continuous blood filter comprising: a. upstream and downstream end pieces, b. a tubular body secured between the end pieces to form a chamber, c. an inlet port at the center of the upstream end piece, d. an outlet port below the top of the downstream end piece, e. the inlet and outlet ports thereby enabling substantially horizontal blood flow through the chamber, f. a quantity of blood-filter material between thE end pieces, g. upstream perforated, filter-material-retaining means locating the filter material in the path of the blood flow, h. means spacing apart the downstream retaining means and end piece and forming therebetween a recess at the downstream end of the chamber for separating and collecting air entrained in the blood, and i. air-exhaust port means communicating with the top of the recess for exhausting collected air therefrom.
- 10. The blood filter of claim 9 wherein spacing means comprises a peripheral boss on the downstream end piece projecting inward therefrom for abutment by the downstream retaining means.
- 11. The blood filter of claim 9 including means spacing apart the upstream retaining means and end piece and forming therebetween a recess at the upstream end of the chamber.
- 12. The blood filter of claim 11 wherein the spacing means comprises a peripheral boss on the upstream end piece projecting inward therefrom for abutment by the upstream retaining means.
- 13. The blood filter of claim 9 including baffle means opposite the inlet port for diffusing the blood laterally over the entire area of the blood filter material.
- 14. The blood filter of claim 13 wherein the baffle means comprises an imperforate central portion of the upstream retaining means.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US88266369A | 1969-12-05 | 1969-12-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3593854A true US3593854A (en) | 1971-07-20 |
Family
ID=34116959
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US882663A Expired - Lifetime US3593854A (en) | 1969-12-05 | 1969-12-05 | Blood treating and filtering apparatus |
Country Status (4)
Country | Link |
---|---|
US (1) | US3593854A (en) |
DE (1) | DE1928052A1 (en) |
FR (1) | FR2048130A5 (en) |
GB (1) | GB1242493A (en) |
Cited By (97)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3770129A (en) * | 1972-05-15 | 1973-11-06 | Harvey W Res Corp | Manually flexible blood filter |
FR2189081A1 (en) * | 1972-06-16 | 1974-01-25 | Pall Corp | |
USB302271I5 (en) * | 1972-10-30 | 1975-01-28 | ||
US3873682A (en) * | 1971-02-23 | 1975-03-25 | Mochida Pharm Co Ltd | Filter for urine samples to be used in pregnancy tests and method of using same |
JPS519594U (en) * | 1974-06-08 | 1976-01-23 | ||
US3935111A (en) * | 1973-04-06 | 1976-01-27 | Bentley Laboratories, Inc. | Device for removing blood microemboli |
US3963614A (en) * | 1970-11-09 | 1976-06-15 | Hitachi, Ltd. | Apparatus for removing unnecessary components from samples |
US3972818A (en) * | 1974-08-22 | 1976-08-03 | General Atomic Company | Blood filter using glassy carbon fibers |
US3986506A (en) * | 1974-09-03 | 1976-10-19 | Baxter Travenol Laboratories, Inc. | Apparatus for separation of cryoprecipitate from blood plasma and method |
US4053420A (en) * | 1975-04-14 | 1977-10-11 | Dr. Eduard Fresenius Chemisch-Pharmazeutische Industrie Kg. | Blood filter |
US4056476A (en) * | 1975-02-27 | 1977-11-01 | Johnson & Johnson | Blood filter media |
US4073732A (en) * | 1974-04-19 | 1978-02-14 | Johnson & Johnson | Media for filtering blood |
US4073723A (en) * | 1976-11-15 | 1978-02-14 | Swank Roy L | Anti-coagulating and filtering blood |
US4096070A (en) * | 1977-01-03 | 1978-06-20 | Johnson & Johnson | Blood filter |
US4115277A (en) * | 1977-06-17 | 1978-09-19 | Pioneer Filters, Inc. | Blood filtering apparatus of graduated fiber density |
US4116845A (en) * | 1977-06-17 | 1978-09-26 | Pioneer Filters, Inc. | High capacity blood transfusion micro filter |
US4129131A (en) * | 1976-10-26 | 1978-12-12 | Henry Naftulin | Method and apparatus for defibrination of blood |
US4155854A (en) * | 1975-04-14 | 1979-05-22 | Dr. Eduard Fresenius Chemischpharmazeutische Industrie KG. | Blood filter |
US4157965A (en) * | 1975-01-20 | 1979-06-12 | Bentley Laboratories, Inc. | Blood treating device |
US4157967A (en) * | 1976-03-25 | 1979-06-12 | Baxter Travenol Laboratories, Inc. | Blood filter |
US4162220A (en) * | 1977-01-03 | 1979-07-24 | Johnson & Johnson | Blood filter |
US4170056A (en) * | 1976-03-25 | 1979-10-09 | Baxter Travenol Laboratories, Inc. | Blood filter |
US4190542A (en) * | 1973-07-26 | 1980-02-26 | Smith & Nephew Research Ltd. | Disposable column |
DE2846302A1 (en) * | 1977-08-01 | 1980-05-08 | Pioneer Filters Inc | HIGH CAPACITY BLOOD TRANSFUSION MICROFILTER |
JPS55129755A (en) * | 1979-03-30 | 1980-10-07 | Asahi Chem Ind Co Ltd | Catch and pick-up filter of white corpuscle |
US4253967A (en) * | 1975-01-20 | 1981-03-03 | Bentley Laboratories, Inc. | Blood treating method |
US4283289A (en) * | 1979-08-22 | 1981-08-11 | Baxter Travenol Laboratories, Inc. | Blood filter for leukocytes |
JPS5755152A (en) * | 1980-09-18 | 1982-04-01 | Toray Industries | Therapeutic molded object provided with x-ray contrasting property |
US4330410A (en) * | 1978-03-06 | 1982-05-18 | Asahi Kasei Kogyo Kabushiki Kaisha | Separation of leukocytes from leukocyte-containing suspension by filtration |
EP0155003A2 (en) * | 1984-03-15 | 1985-09-18 | ASAHI MEDICAL Co., Ltd. | Filtering unit for removing leukocytes |
US4668394A (en) * | 1983-01-10 | 1987-05-26 | Mcneilab, Inc. | Filtration media and supporting frame |
US4743371A (en) * | 1983-04-08 | 1988-05-10 | Shiley, Inc. | Blood filter |
US4880548A (en) * | 1988-02-17 | 1989-11-14 | Pall Corporation | Device and method for separating leucocytes from platelet concentrate |
US4923620A (en) * | 1987-10-20 | 1990-05-08 | Pall Corporation | Device for depletion of the leukocyte content of blood and blood components |
US4925572A (en) * | 1987-10-20 | 1990-05-15 | Pall Corporation | Device and method for depletion of the leukocyte content of blood and blood components |
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US5344561A (en) * | 1989-05-09 | 1994-09-06 | Pall Corporation | Device for depletion of the leucocyte content of blood and blood components |
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Also Published As
Publication number | Publication date |
---|---|
DE1928052A1 (en) | 1970-12-10 |
GB1242493A (en) | 1971-08-11 |
FR2048130A5 (en) | 1971-03-19 |
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