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Publication numberUS1874667 A
Publication typeGrant
Publication dateAug 30, 1932
Filing dateApr 23, 1931
Priority dateApr 22, 1931
Also published asDE562219C
Publication numberUS 1874667 A, US 1874667A, US-A-1874667, US1874667 A, US1874667A
InventorsWada Yoshinobu
Original AssigneeWada Yoshinobu
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Pumping apparatus for medical treatments
US 1874667 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

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.

YOSHINOBU WADA.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2621605 *Oct 12, 1945Dec 16, 1952Clayton Mark & CompanyPump
US2625885 *Mar 4, 1948Jan 20, 1953Fmc CorpInk pump
US2629333 *Jul 1, 1950Feb 24, 1953Olden Roger GRotary compress pump
US2722893 *Jan 5, 1951Nov 8, 1955Alfred Maillot LeonCollapsible chamber pump
US2958294 *Jun 6, 1958Nov 1, 1960Richard L GausewitzHose-type pump
US2975553 *Aug 25, 1958Mar 21, 1961Nat Res DevApparatus for culture of biological cells and tissues
US3340817 *Oct 18, 1965Sep 12, 1967Kemnitz Gustave WPump
US3750908 *Oct 2, 1970Aug 7, 1973Lykes Pasco Packing CoConcentrate dispenser with supply container removable from peristaltic pump
US4243030 *Aug 18, 1978Jan 6, 1981Massachusetts Institute Of TechnologyImplantable programmed microinfusion apparatus
US4482347 *Aug 12, 1982Nov 13, 1984American Hospital Supply CorporationPeristaltic fluid-pumping apparatus
US4493706 *Aug 12, 1982Jan 15, 1985American Hospital Supply CorporationLinear peristaltic pumping apparatus and disposable casette therefor
US4657486 *Jun 17, 1985Apr 14, 1987Stempfle Julius EPortable infusion device
US4867744 *May 21, 1987Sep 19, 1989Baxter International Inc.Peristaltic linear pump with contoured rollers
US5320503 *Sep 23, 1993Jun 14, 1994Patient Solutions Inc.Infusion device with disposable elements
US5584667 *Jun 6, 1995Dec 17, 1996Davis; David L.Method of providing uniform flow from an infusion device
US5803712 *Feb 14, 1995Sep 8, 1998Patient Solutions, Inc.Method of measuring an occlusion in an infusion device with disposable elements
US6146109 *Jun 29, 1998Nov 14, 2000Alaris Medical Systems, Inc.Infusion device with disposable elements
US6270326 *Aug 31, 1998Aug 7, 2001Seiko Epson CorporationTransfusion device and liquid supply tube
US6312227Mar 30, 1993Nov 6, 2001I-Flow Corp.Infusion device with disposable elements
US6742992Nov 7, 2002Jun 1, 2004I-Flow CorporationInfusion device with disposable elements
WO2005120387A2 *May 20, 2005Dec 22, 2005Gillette CoOral care device
Classifications
U.S. Classification417/474, 417/477.4, 222/209
International ClassificationF04B43/08, A61M1/10, F04B43/00
Cooperative ClassificationA61M5/14232, F04B43/082, A61M5/14228, A61M2001/1041, A61M1/1046, A61M1/1037
European ClassificationF04B43/08B, A61M1/10E