GB650042A - Improvements in or relating to flexible chamber pumps - Google Patents
Improvements in or relating to flexible chamber pumpsInfo
- Publication number
- GB650042A GB650042A GB23854/47A GB2385447A GB650042A GB 650042 A GB650042 A GB 650042A GB 23854/47 A GB23854/47 A GB 23854/47A GB 2385447 A GB2385447 A GB 2385447A GB 650042 A GB650042 A GB 650042A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tubes
- plate
- pump
- fluid
- posts
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/08—Machines, pumps, or pumping installations having flexible working members having tubular flexible members
- F04B43/082—Machines, pumps, or pumping installations having flexible working members having tubular flexible members the tubular flexible member being pressed against a wall by a number of elements, each having an alternating movement in a direction perpendicular to the axes of the tubular member and each having its own driving mechanism
-
- 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
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/10—Location thereof with respect to the patient's body
- A61M60/104—Extracorporeal pumps, i.e. the blood being pumped outside the patient's body
-
- 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
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/20—Type thereof
- A61M60/247—Positive displacement blood pumps
- A61M60/253—Positive displacement blood pumps including a displacement member directly acting on the blood
- A61M60/268—Positive displacement blood pumps including a displacement member directly acting on the blood the displacement member being flexible, e.g. membranes, diaphragms or bladders
- A61M60/279—Peristaltic pumps, e.g. roller pumps
- A61M60/284—Linear peristaltic pumps
-
- 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
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/30—Medical purposes thereof other than the enhancement of the cardiac output
- A61M60/39—Medical purposes thereof other than the enhancement of the cardiac output for blood transfusion
-
- 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
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/40—Details relating to driving
- A61M60/424—Details relating to driving for positive displacement blood pumps
- A61M60/438—Details relating to driving for positive displacement blood pumps the force acting on the blood contacting member being mechanical
-
- 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
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/80—Constructional details other than related to driving
- A61M60/855—Constructional details other than related to driving of implantable pumps or pumping devices
- A61M60/89—Valves
- A61M60/892—Active valves, i.e. actuated by an external force
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Mechanical Engineering (AREA)
- Cardiology (AREA)
- Anesthesiology (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)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
650,042. Flexible chamber pumps or compressors. HENRY, L. E. V. J. Aug. 28,1947, No. 23854. Convention date, March 7, 1941. [Classes 8(i) and 102(i)] [Also in Groups VI and XXXV] A pump comprises a resilient tubular member forming a pump chamber, connected between a fluid supply source and a point of use and squeezed against an abutment by a flattening presser to effect a pumping stroke, inlet and outlet control pressers located on opposite sides of the flattening presser and adapted to obturate the tubular member locally to control the fluid. flow, and means for imparting periodic movements to the three pressers in a pumping sequence. The pump described which is particularly adapted for blood transfusion purposes comprises a pair of rubber tubes 27 each of which are secured in supports 30, 30<SP>1</SP> mounted on a frame 1 by a hinged abutment plate 28. The tubes are each adapted to be squeezed sideways against the abutment plate by a plate 19 supported in adjustable posts 15<SP>1</SP>, 16<SP>1</SP> and reciprocated by cams 3, 4, through levers 7, 7<SP>1</SP> and 8, 8<SP>1</SP> respectively. Check valves 17, 18 which are actuated in timed sequence with the plate 19 by cams 5, 6 respectively through levers 9, 10 respectively, are adapted to obturate the tubes at spaced points adjacent each end of the plate 19 so that the action of the latter will cause fluid to be pumped through the tubes. The stroke of the plates 19 may be varied by moving the 'posts 15<SP>1</SP>, 16<SP>1</SP> relative to the levers 7<SP>1</SP>, 8<SP>1</SP> respectively by a lead screw 20 which has left and right hand threads engaging correspondingly threaded holes in the posts. Alternatively a rack and pinion device may be used. The posts carry slidable push rods 15, 16 which are in engagement with the plate 19 through dovetail connections. The tube supports 30, 30<SP>1</SP> may be adjusted relative to the plate 19 by a screw 39 so as to accommodate various sizes of tubes. The cams are mounted on sleeve members in engagement with a shaft 2 which is driven by a synchronous electric motor 62 through gears 68, 69, 70, 71 running in an oil bath 63. In the case of electrical failure the device may be operated by hand. An indicating device is fitted to show the instantaneous rate of pumping of the fluid whilst a separate counter device 47 is adapted to record the total quantity of fluid pumped in any predetermined time. The two tubes 27 may deliver to a common or to separate points of use and may be adapted to pump in simultaneous or alternate sequence a device being fitted to effect a quick change from one to the other. The tubes may have resilient bulb portions which are squeezed by the plates 19. The pump may be used for either liquids or gases.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR650042X | 1941-03-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB650042A true GB650042A (en) | 1951-02-14 |
Family
ID=9003720
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB23854/47A Expired GB650042A (en) | 1941-03-07 | 1947-08-28 | Improvements in or relating to flexible chamber pumps |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB650042A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3359910A (en) * | 1965-06-10 | 1967-12-26 | Little Inc A | Apparatus for programming fluid flow |
GB2150644A (en) * | 1983-10-10 | 1985-07-03 | Mueszeripari Muevek Lab | Peristaltic pump |
GB2225065A (en) * | 1988-11-04 | 1990-05-23 | Danby Medical Ltd | Pumping device for medical use |
CN105709286A (en) * | 2016-01-18 | 2016-06-29 | 暨南大学 | Stepless regulating device matched with biventricular in vitro assist circulation blood pump room in use |
-
1947
- 1947-08-28 GB GB23854/47A patent/GB650042A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3359910A (en) * | 1965-06-10 | 1967-12-26 | Little Inc A | Apparatus for programming fluid flow |
GB2150644A (en) * | 1983-10-10 | 1985-07-03 | Mueszeripari Muevek Lab | Peristaltic pump |
GB2225065A (en) * | 1988-11-04 | 1990-05-23 | Danby Medical Ltd | Pumping device for medical use |
GB2225065B (en) * | 1988-11-04 | 1992-07-15 | Danby Medical Ltd | Improvements in or relating to pumping devices. |
US5151019A (en) * | 1988-11-04 | 1992-09-29 | Danby Medical Engineering Ltd. | Pumping device having inlet and outlet valves adjacent opposed sides of a tube deforming device |
USRE37074E1 (en) | 1988-11-04 | 2001-02-27 | Baxter Intl. Inc. | Pumping device having inlet and outlet valves adjacent opposed sides of a tube deforming device |
CN105709286A (en) * | 2016-01-18 | 2016-06-29 | 暨南大学 | Stepless regulating device matched with biventricular in vitro assist circulation blood pump room in use |
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