|Publication number||US1874667 A|
|Publication date||Aug 30, 1932|
|Filing date||Apr 23, 1931|
|Priority date||Apr 22, 1931|
|Also published as||DE562219C|
|Publication number||US 1874667 A, US 1874667A, US-A-1874667, US1874667 A, US1874667A|
|Original Assignee||Wada Yoshinobu|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (21), Classifications (14) |
|External Links: USPTO, USPTO Assignment, Espacenet|
Pumping apparatus for medical treatments
US 1874667 A
Aug. 30, 1932. Y. WADA 1,874,667
" PUMPING APPARATUS FOR MEDICAL TREATMENTS Filed April 23, 1931 T 1m Bunny?- Patented Aug. 30, 1932 I UNITED STATES PATENT OFFICE YOSHINOIBU WADA, 02E SENDAI-SHI, JAPAN PUIQIPING APPARATUS FOR MEDICAL TREATMENTS Application filed April 28, 1931. Serial No. 532,355.
The present invention relates to a pumping apparatus capable of various uses in medical treatments or operations.
An object of the invention is to provide a 5 pumping apparatus to be used for an injection-syringe, whereby injections can be constantly inJected.
I Another object resides in a new sucking pump which particularly fits for hydrothorax, hydrocoelia, tumour in abdomen, etc.
Another object resides in a new apparatus for transfusion of blood whereby blood can be directly transfused from a man or animal to another.
Other objects and advantages will be seen when taken in connection with the accompanying description and drawing in which Fig. 1 is a side elevation of an embodiment of the invention (metallic strips and rubber tube are shown in section) Fig. 2 shows the plan; Fig. 3 is the end elevation in section along A- In the drawing 1 indicates a rotatable cylinder provided with a male screw 2 around-it.
If the axis 3 is rotated in the direction as shown in Fig. 1, the male screw 2 presses down some of the ends of the strips-4: penetrated by a rod 10 at their other ends in order from left to right, the constricted point 7 of the rubber tube 5 under the stri s pressed down on the plate 6 moving from 1e t to right.
Fluid in the rubber tube 5, either liquid or gas, is pressed by positive pressure occurring at the portion 8 before the constricted point and sucked by negative pressure occurring at the portion 9 behind the constricted point, thus being pumped constantly at a definite pressure as desired.
I claim A pumping apparatus for medical treatments, comprising a revolving cylinder provided with a male screw thereon, a file of metallic' or like strips which are pressed down in order b the said screw and a conduit consisting of e astic material, preferably a rubber tube, which is always pressed by the metallic strips at least at one portion thereof to close the said conduit.
In testimony whereof I aflix my signature.
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US2621605 *||Oct 12, 1945||Dec 16, 1952||Clayton Mark & Company||Pump|
|US2625885 *||Mar 4, 1948||Jan 20, 1953||Fmc Corp||Ink pump|
|US2629333 *||Jul 1, 1950||Feb 24, 1953||Olden Roger G||Rotary compress pump|
|US2722893 *||Jan 5, 1951||Nov 8, 1955||Alfred Maillot Leon||Collapsible chamber pump|
|US2958294 *||Jun 6, 1958||Nov 1, 1960||Richard L Gausewitz||Hose-type pump|
|US2975553 *||Aug 25, 1958||Mar 21, 1961||Nat Res Dev||Apparatus for culture of biological cells and tissues|
|US3340817 *||Oct 18, 1965||Sep 12, 1967||Kemnitz Gustave W||Pump|
|US3750908 *||Oct 2, 1970||Aug 7, 1973||Lykes Pasco Packing Co||Concentrate dispenser with supply container removable from peristaltic pump|
|US4243030 *||Aug 18, 1978||Jan 6, 1981||Massachusetts Institute Of Technology||Implantable programmed microinfusion apparatus|
|US4482347 *||Aug 12, 1982||Nov 13, 1984||American Hospital Supply Corporation||Peristaltic fluid-pumping apparatus|
|US4493706 *||Aug 12, 1982||Jan 15, 1985||American Hospital Supply Corporation||Linear peristaltic pumping apparatus and disposable casette therefor|
|US4657486 *||Jun 17, 1985||Apr 14, 1987||Stempfle Julius E||Portable infusion device|
|US4867744 *||May 21, 1987||Sep 19, 1989||Baxter International Inc.||Peristaltic linear pump with contoured rollers|
|US5320503 *||Sep 23, 1993||Jun 14, 1994||Patient Solutions Inc.||Infusion device with disposable elements|
|US5584667 *||Jun 6, 1995||Dec 17, 1996||Davis; David L.||Method of providing uniform flow from an infusion device|
|US5803712 *||Feb 14, 1995||Sep 8, 1998||Patient Solutions, Inc.||Method of measuring an occlusion in an infusion device with disposable elements|
|US6146109 *||Jun 29, 1998||Nov 14, 2000||Alaris Medical Systems, Inc.||Infusion device with disposable elements|
|US6270326 *||Aug 31, 1998||Aug 7, 2001||Seiko Epson Corporation||Transfusion device and liquid supply tube|
|US6312227||Mar 30, 1993||Nov 6, 2001||I-Flow Corp.||Infusion device with disposable elements|
|US6742992||Nov 7, 2002||Jun 1, 2004||I-Flow Corporation||Infusion device with disposable elements|
|WO2005120387A2 *||May 20, 2005||Dec 22, 2005||Gillette Co||Oral care device|
| || |
|U.S. Classification||417/474, 417/477.4, 222/209|
|International Classification||F04B43/08, A61M1/10, F04B43/00|
|Cooperative Classification||A61M5/14232, F04B43/082, A61M5/14228, A61M2001/1041, A61M1/1046, A61M1/1037|
|European Classification||F04B43/08B, A61M1/10E|