US2649052A - Rotary pump or motor - Google Patents

Rotary pump or motor Download PDF

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Publication number
US2649052A
US2649052A US20271550A US2649052A US 2649052 A US2649052 A US 2649052A US 20271550 A US20271550 A US 20271550A US 2649052 A US2649052 A US 2649052A
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United States
Prior art keywords
rotor
vanes
casing
motor
end
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Expired - Lifetime
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Inventor
Ferdinand M Weyer
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MARINE PRODUCTS Co
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MARINE PRODUCTS Co
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Priority to US742168A priority Critical patent/US2573819A/en
Application filed by MARINE PRODUCTS Co filed Critical MARINE PRODUCTS Co
Priority to US20271550 priority patent/US2649052A/en
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Publication of US2649052A publication Critical patent/US2649052A/en
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Application status is Expired - Lifetime legal-status Critical

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C5/00Rotary-piston machines or pumps with the working-chamber walls at least partly resiliently deformable
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S417/00Pumps
    • Y10S417/01Materials digest

Description

Aug. .18, 1 953 FIM. wEYER 2,649,052` ROTARYPUMP oRMoToR 7 v original med April 17, 1947 7x Z @il l 2` .1 "'34 49 50 .f5 5a Figi. 3f' @a fg? 5 5'? f Patented Aug. 18, 1953 ROTARY PUMP on Moron Ferdinand M. Weyer, Detroit, Mich.,'asslgnor to Marine Products Company, Detroit, Mich., a

corporation of Michigan Original application April 17, 1947, Serial No.

742,168. Divided Vand this application December 26, 1950, Serial No. 202,715

4 Claims. (Cl. 103-117) This invention relates to fluid pressure pumps or motors.

One object of this invention is to provide a fluid pressure pump or motor having a rotor with vanes of resilient material on a rotary shaft mounted in a casing having opposite inner end walls inclined toward one another at angles of slightly less than right angles to the axis of rotation of the rotor shaft, the resilient vanes ilexing as they engage these inclined end walls so as to create a pumping action by forcing liquid outward through an outlet port in the casing and drawing liquid inward through an inlet port in the casing.

Another object is to provide a fluid pressure pump or motor of the foregoing character, wherein the vanes are preferably arranged in approximately V-shaped or herringbone formations on opposite sides of a central disc-shaped rib projecting radially outward from the hub of the rotor.

Another object is to provide a modified fluid pressure pump or motor having a casing and rotor of the foregoing character except that the vanes are substantially straight in that they are substantially perpendicular to the plane of the central disc-shaped rib rather than inclined at` an angle thereto, as in the V-shaped or herringbone formations of the other form of the invention.

This application is a division of my co-pending application Serial No. '142,168 filed April 17, 1947, now Patent No. 2,573,819, for Rotary Pump or Motor.

In the drawings:

Figure 1 is a central vertical longitudinal section through a fluid pressure pump or motor, according to one form of the invention;

Figure 2 is a vertical cross-section taken along the zigzag line 2-2 in Figure 1; Y

Figure 3 is a horizontal section, with the rotor in 'top plan view, taken along the curved-'line 3-3 in Figure 2, showing the flexing of the ro-v tor vanes against the inclined casing end walls;

Figure 4 is a top plan view of a modified rotor with straight vanes removed from the pump or motor; and

Figure 5 is a side elevation of the modied rotor shown in Figure 4.

Referring to the drawings in detail, Figure 1 shows a fluid pressure pump or motor, generally designated IIl, according to one form of the invention and including a base II with a central pedestal I2 having a horizontal bore I3 therein.

Radiating outward from the central pedestal II2 i 2 which forms a journal bearing for a shaft I4,fis a cup-shaped housing or casing I5. The housing or casing I5 consists of a disc-like radial wall I6 and a cylindrical axial wall I1 having a cylindrical bore I8 therein closed by a disc-like end plate I9 bolted thereto as at 20. The end plate I9 is providedrwith a reduced diameter portion 2| which extends into the cylindrical chamber I8.

The housing or casing I5 has radially extend-y ing inlet and outlet ports and 3| respectively.

is formed of elastic deformable materiaL-suchi as rubber or synthetic rubber. The vane unit 4I has a central disc-shaped rib 42 projecting outward from the hub 40, and the rib 42 carries radially-extending vanes 43, also of elastic deformable material (Figure 4). l The vanes 4e are preferably arranged in approximately V shaped or herringbone formations on opposite sides of the rib 42 and are cut away as at 44, (Figure 1) `where the disc-shaped rib 42 `joins the hub 40. yThe gaps 44 between the vanes `43l and the hub provide flexibility lfor the flexing of the vanes43 parallel to the axis of the pumpas they pass between the inclined end walls of the casing I5, as described below in connection with the operation of the invention. The vanes"4 43 are so inclined relatively to the disc-shaped rib 4I that their ends resemble arrow heads aimed in the direction of rotation of the rotor;

s and also have annular grooves 46 therein.

Leading into the bore I3 is a v,transversvethreaded hole or Aport 41 (Figure 1) into which is threaded the stem 48 of an oil cup 49. latter is of a conventional pattern, having a lid 50 pivoted thereto at 5I so asto permit the insertion of oil or other lubricant for lubricating the shaft I4. The right-hand end of the bore I3 is provided with an annular cavity 52l containing annular packing 53 and compressed, by an annular gland or nut 54 threaded therein as The 3 at 55. This backing 53 prevents the loss of the lubricant along the shaft I4.

Mounted on the outer end of the shaft I4 and secured thereto as by the set screw 56 is the hub 51 of a pulley 58 which is provided with a suitable annular groove 59 for engagement by a driving' belt. (not shown). The.v pulley 58 is a conventional type and for purposes of convenience is shown as having a V-groove to acf-` commodate a V-belt. It Will be evident,

however, that any other type of belt'cif` spru'clei Y may be used in order to drive theshat L4.. l

The modified rotor B shoWnri'mFigureal- 5 is generally similar to the rotor 31 shown in Figures 1 to 3 inclusive and` has a similar central sleeve 6I on which is mounted the hub 62j the rotor 311i of Figures 1 to `3 inclusive, except that. the rotor. E11 is. capable of rotating in opposite, directionsJwliereas, as previously stated,

of a rotor unit 63 of elastic deformable mate" rial, such as rubber or synthetic rubber. lThe rotor is also provided with a centrali discs.

shaped rib G4 with vanes; 65 arranged in planes which are.` substantially.I perpendicular, to' the, plane-sof the rib 642 instead ot being` inclined at.. anangle, thereto; as: in the; principal ferm of thea invention. The.v vanes, like.A the:v vanes; 43,. are c u-t away sos as: to provide caps. 661' adjacent. the.: hub B2; this construction permitting. :free iiexing of the vanes- 65.; The remainder off therotort 6.0.' is substa-ntiall'y ofthe same construc tion as that of the rotor 31, and its operaticn4 isV similar. The; rotor.: 60; however; is: capable o rotating; inopposite directions. whereas the rotorN 31? preferably adapted tov rotate 011 directiom only.

The! housing: orV casing I5. contains a chamber` 'I2 bounded by the cylindricah bore I8- andv the'4 opposite; inner end. walls; 1i5 and: 161 of. the endi` platea I9 andi housing or; casing.. wall ISE ref spectively.; The'- end: wall 15: is; inclined, at slightly less; than right. angles to. thel axis: of the rotor shaft I4, whereas. the` end; wall 1:*6; is,- al'so.- inclined at slightly.l less'.- than; rightr angles tor` the a-xis. of the rotor shart; If4f (Figure. 1),.A Because off this construction. the; inner en'dcwalls, i and.l 125? are' sliglrtl'yv closerV together` atv the top of? the-chamber 152V than. at the bottom` thereof, so: that they converge. towards: the ports.: and 3i". 'lheA end walls. 1:5" and.: 16v arerecessed: to.- receive'- the ends of? the hub' portions. 38';A 40.0f: the: rotor'31f.

In. the operation. of. theinventionv asfv a pump,. power isi applied torotate the shaft t4: and con.- sequently the rotor 31- in a coun'terlecky/.isc`r die reaction-K VAfs-tlie vanes e3 pass from the bottomu otr thel casing 'II'.J to the topI thereon, the: corr--l verging of the end'. walls: 15?l and 1.6: causes: the.:v vanes. 4'3 to: flex inward in. an' axial. direction,7 thereby; bringing.;k about a: pumpingA action.- with; respect. to. the. liquid` in the chamber 12 and causing liquid; to be drawn. in through the inlet porirj 30- and forcedv out throughthe exhaust. Dor-tial..

The,T operation of the pump; or motor IIJ as. am'otor is.-y brought about by supplying, pressure fluid tooneof: the ports, this. causing thea rotor 31 to-I rotate,v and impartr rotationvk to the; shaft UIv before. being discharged through the, outlet. port. The vanes 6.3= flexV laterally as. before; as they pass. fromY the bottom of the chamber '12`` tcl-thetop.thereof,.because of the. converging of? the-end,.walls.1.5 and 1.6.

While the intake.. andV discharge ports` 30 andi 3|. have been described as circumferentially, spaced. they are not. necessarily located entirely on the peripheral portion I1, but may ther roten-Sil: ispneferably adapted to rotate in one direction only, but at an efficiency somewhat' higher' that of the rotor 6B. Thus,

fthe.' rational is; preferably used Where there is to vbe vrot'ationi'nA one direction only and the rotor 61'!!A isi used where it is necessary to provide rotation in opposite directions. Of course, Where the. rotor. 60. is rotated in opposite directions.

the intake port for one direction becomes thev pumpr chamber with axiallyespaced end; walls. and a. cylindrical. peripheral Wall joining said;A

end. walls,l said: casing having circumferentially spaced iluid intake and. discharge ports, a-.. shaf-tlrotatably mounted in said casing, atleast (meV of' saidendA walls being inclined relatively to thel axis of said shaft substantially entirelyf across said.; chamber and. causing4 said endI Walls tocon-.v

verge toward said. ports, and. arotor having ay hubportion mountedV on said.y shaft and hav-ing. radially-extending vanes ot elastic' deformable material, the peripheral edges. of, said; rotor' vanesr engagingsaid cylindricall Wall andthe side edges thereof engaging said inclined. end` walls and exing parallel. to the axisof. the pump. inresponse-to theV convergencethereof,

said vanesf at their inner endsl being cut away from-.said hub; portion.

2: Arotary pumpv or motor comprising aholloW casing,` having an` approximately cylindrical pump= chamber: with axially-spat.ed endV Walls-v and: a'. cylindrical peripheral WallA joiningy said' end Walls, said casing having circumferentiallyirl spa-ced iiui'd; intake'. and` discharge ports, a. shaft rotatably mounted in said casing; both of Said end walls; being* inclined relativelyv to the axis' of said shaft substantially entirely across said.

chamber and causing said end! Walls to converge towardV said ports, and' a rotor having a hub portion mounted on said' shaft andi having radially-extending vanes of elastic deformable material," the peripheral edges of said rotor vanes engaging said cylindrical? wall andA the side. edges' thereof engaging said inclined end Walls and" iiexing` parallel to the axis of thepumpj in response to thel convergence thereof, said vanes'A at` theirV innerendsl being cut away from said'hubV portion.

3. A rotary pump or motor comprising a hollow casing having an approximately cylindrical pump chamber with axially-spaced end walls land a cylindrical peripheral Wall joining saidv the axis. ofv said'` shaftV substantially entirely across said chamber and causing said end Walls to converge toward said ports, and a rotor having a hub portion mounted on said shaft and having radially-extending vanes .of elastic deformable material, the peripheral edges of said rotor vanes engaging said cylindrical Wall and the side edges thereof engaging said inclined end walls and flexing parallel to the axis of the pump in response to the convergence thereof, said vanes at their inner ends being cut awa'y from said hub portion, said end Walls having recesses adjacent said shaft, and the opposite ends of said rotor hub portion extending into said recesses.

4. A rotary pump or motor comprising a hollow casing having an approximately cylindrical pump chamber with axially-spaced end Walls and a cylindrical peripheral wall joining said end walls, said casing having circumferentiallyspaced fluid intake and discharge ports, a shaft rotatably mounted in said casing, at least one of said end walls being inclined relatively to the axis of said shaft substantially entirely across said chamber and causing said end Walls to converge toward said ports, and a rotor having a hub portion mounted on said shaft and having radially-extending vanes of elastic deformable material, the peripheral edges of said rotor vanes engaging said cylindrical wall and. the side edges thereof engaging said inclined end walls and flexing parallel to the axis of the pump in response to the convergence thereof, said vanes at their inner ends being cut away from said hub portion, said casing having an end closure member secured thereto, and one of said inclined end Walls being disposed on Said end closure member.

FERDINAND M. WEYER.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 1,712,157 Merita May 7, 1929 1,989,900 Vickers Feb. 5, 1935 2,152,498 Quiroz Mar. 28, 1939 2,189,356 Briggs Feb. 6, 1940 2,455,194 Rumsey Nov. 30, 1948 2,460,952 Simer et al. Feb. 8, 1949 2,542,240 Fernstrum Feb. 20, 1951 2,542,268 Weyer Feb. 20, 1951 FOREIGN PATENTS Number Country Date 95,139 Germany Dec. 4, 1897

US20271550 1947-04-17 1950-12-26 Rotary pump or motor Expired - Lifetime US2649052A (en)

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US742168A US2573819A (en) 1947-04-17 1947-04-17 Rotary pump or motor
US20271550 US2649052A (en) 1947-04-17 1950-12-26 Rotary pump or motor

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Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2853021A (en) * 1955-01-14 1958-09-23 Jabsco Pump Co Pump
US2948227A (en) * 1958-11-19 1960-08-09 Lord Mfg Co Pump
US3005416A (en) * 1959-08-10 1961-10-24 Lord Mfg Co Pump
US3028813A (en) * 1960-03-30 1962-04-10 Lord Mfg Co Water pump shaft seal
US3034444A (en) * 1959-12-21 1962-05-15 Lord Mfg Co Pump
US3039397A (en) * 1958-04-21 1962-06-19 Thompson Ramo Wooldridge Inc Pump
US3246607A (en) * 1963-07-29 1966-04-19 Ford Motor Co Impeller
DE1293023B (en) * 1956-11-21 1969-04-17 Whittaker Corp As Fluessigkeitspumpe or Fluessigkeitsmotor usable rotary piston machine with a wellenfoermig extending in the circumferential direction Schraegscheibe
US4762465A (en) * 1985-06-29 1988-08-09 Klifa-Fahrzeugteile Gmbh + Co. Water pump impeller
EP1789314A2 (en) * 2004-09-17 2007-05-30 The Penn State Research Foundation Expandable impeller pump
US20080114339A1 (en) * 2006-03-23 2008-05-15 The Penn State Research Foundation Heart assist device with expandable impeller pump
US7998054B2 (en) 1997-10-09 2011-08-16 Thoratec Corporation Implantable heart assist system and method of applying same
US8118724B2 (en) 2003-09-18 2012-02-21 Thoratec Corporation Rotary blood pump
US8485961B2 (en) 2011-01-05 2013-07-16 Thoratec Corporation Impeller housing for percutaneous heart pump
US8535211B2 (en) 2009-07-01 2013-09-17 Thoratec Corporation Blood pump with expandable cannula
US8591393B2 (en) 2011-01-06 2013-11-26 Thoratec Corporation Catheter pump
US8597170B2 (en) 2011-01-05 2013-12-03 Thoratec Corporation Catheter pump
US8721517B2 (en) 2012-05-14 2014-05-13 Thoratec Corporation Impeller for catheter pump
US9138518B2 (en) 2011-01-06 2015-09-22 Thoratec Corporation Percutaneous heart pump
US9308302B2 (en) 2013-03-15 2016-04-12 Thoratec Corporation Catheter pump assembly including a stator
US9327067B2 (en) 2012-05-14 2016-05-03 Thoratec Corporation Impeller for catheter pump
US9358329B2 (en) 2012-07-03 2016-06-07 Thoratec Corporation Catheter pump
US9381288B2 (en) 2013-03-13 2016-07-05 Thoratec Corporation Fluid handling system
US9421311B2 (en) 2012-07-03 2016-08-23 Thoratec Corporation Motor assembly for catheter pump
US9446179B2 (en) 2012-05-14 2016-09-20 Thoratec Corporation Distal bearing support
US9512852B2 (en) 2006-03-31 2016-12-06 Thoratec Corporation Rotary blood pump
US9675738B2 (en) 2015-01-22 2017-06-13 Tc1 Llc Attachment mechanisms for motor of catheter pump
US9675739B2 (en) 2015-01-22 2017-06-13 Tc1 Llc Motor assembly with heat exchanger for catheter pump
US9770543B2 (en) 2015-01-22 2017-09-26 Tc1 Llc Reduced rotational mass motor assembly for catheter pump
US9827356B2 (en) 2014-04-15 2017-11-28 Tc1 Llc Catheter pump with access ports
US9872947B2 (en) 2012-05-14 2018-01-23 Tc1 Llc Sheath system for catheter pump
US9907890B2 (en) 2015-04-16 2018-03-06 Tc1 Llc Catheter pump with positioning brace
US9974893B2 (en) * 2010-06-25 2018-05-22 Ecp Entwicklungsgesellschaft Mbh System for introducing a pump
US10029037B2 (en) 2014-04-15 2018-07-24 Tc1 Llc Sensors for catheter pumps
US10105475B2 (en) 2014-04-15 2018-10-23 Tc1 Llc Catheter pump introducer systems and methods

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE95139C (en) *
US1712157A (en) * 1926-01-16 1929-05-07 Morita Shosaku Wearless geared pump
US1989900A (en) * 1931-01-15 1935-02-05 Harry F Vickers Vane type pump
US2152498A (en) * 1937-01-14 1939-03-28 Quiroz Francisco Angel Rotary pump
US2189356A (en) * 1938-08-02 1940-02-06 Arthur M Briggs Rotary pump
US2455194A (en) * 1943-11-10 1948-11-30 Rumsey Lillian Gray Rotary flexible vane pump
US2460952A (en) * 1945-07-28 1949-02-08 Paddle Pumps Inc Rotary pump with elastic rotor sealing rib
US2542240A (en) * 1947-12-04 1951-02-20 Marine Products Company Fluid pressure pump or motor
US2542268A (en) * 1946-11-22 1951-02-20 Marine Products Company Rotary pump or motor

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE95139C (en) *
US1712157A (en) * 1926-01-16 1929-05-07 Morita Shosaku Wearless geared pump
US1989900A (en) * 1931-01-15 1935-02-05 Harry F Vickers Vane type pump
US2152498A (en) * 1937-01-14 1939-03-28 Quiroz Francisco Angel Rotary pump
US2189356A (en) * 1938-08-02 1940-02-06 Arthur M Briggs Rotary pump
US2455194A (en) * 1943-11-10 1948-11-30 Rumsey Lillian Gray Rotary flexible vane pump
US2460952A (en) * 1945-07-28 1949-02-08 Paddle Pumps Inc Rotary pump with elastic rotor sealing rib
US2542268A (en) * 1946-11-22 1951-02-20 Marine Products Company Rotary pump or motor
US2542240A (en) * 1947-12-04 1951-02-20 Marine Products Company Fluid pressure pump or motor

Cited By (54)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2853021A (en) * 1955-01-14 1958-09-23 Jabsco Pump Co Pump
DE1293023B (en) * 1956-11-21 1969-04-17 Whittaker Corp As Fluessigkeitspumpe or Fluessigkeitsmotor usable rotary piston machine with a wellenfoermig extending in the circumferential direction Schraegscheibe
US3039397A (en) * 1958-04-21 1962-06-19 Thompson Ramo Wooldridge Inc Pump
US2948227A (en) * 1958-11-19 1960-08-09 Lord Mfg Co Pump
US3005416A (en) * 1959-08-10 1961-10-24 Lord Mfg Co Pump
US3034444A (en) * 1959-12-21 1962-05-15 Lord Mfg Co Pump
US3028813A (en) * 1960-03-30 1962-04-10 Lord Mfg Co Water pump shaft seal
US3246607A (en) * 1963-07-29 1966-04-19 Ford Motor Co Impeller
US4762465A (en) * 1985-06-29 1988-08-09 Klifa-Fahrzeugteile Gmbh + Co. Water pump impeller
US7998054B2 (en) 1997-10-09 2011-08-16 Thoratec Corporation Implantable heart assist system and method of applying same
US8118724B2 (en) 2003-09-18 2012-02-21 Thoratec Corporation Rotary blood pump
US8684902B2 (en) 2003-09-18 2014-04-01 Thoratec Corporation Rotary blood pump
EP1789314A4 (en) * 2004-09-17 2010-03-31 Penn State Res Found Expandable impeller pump
US8992163B2 (en) 2004-09-17 2015-03-31 Thoratec Corporation Expandable impeller pump
US7927068B2 (en) 2004-09-17 2011-04-19 Thoratec Corporation Expandable impeller pump
US20090060743A1 (en) * 2004-09-17 2009-03-05 The Penn State Research Foundation Expandable impeller pump
EP1789314A2 (en) * 2004-09-17 2007-05-30 The Penn State Research Foundation Expandable impeller pump
US8376707B2 (en) 2004-09-17 2013-02-19 Thoratec Corporation Expandable impeller pump
US9717833B2 (en) 2004-09-17 2017-08-01 The Penn State Research Foundation Heart assist device with expandable impeller pump
US10215187B2 (en) 2004-09-17 2019-02-26 Tc1 Llc Expandable impeller pump
US9364592B2 (en) 2004-09-17 2016-06-14 The Penn State Research Foundation Heart assist device with expandable impeller pump
US9364593B2 (en) 2004-09-17 2016-06-14 The Penn State Research Foundation Heart assist device with expandable impeller pump
US20080114339A1 (en) * 2006-03-23 2008-05-15 The Penn State Research Foundation Heart assist device with expandable impeller pump
US7841976B2 (en) 2006-03-23 2010-11-30 Thoratec Corporation Heart assist device with expandable impeller pump
US10149932B2 (en) 2006-03-23 2018-12-11 The Penn State Research Foundation Heart assist device with expandable impeller pump
US9512852B2 (en) 2006-03-31 2016-12-06 Thoratec Corporation Rotary blood pump
US8535211B2 (en) 2009-07-01 2013-09-17 Thoratec Corporation Blood pump with expandable cannula
US8684904B2 (en) 2009-07-01 2014-04-01 Thoratec Corporation Blood pump with expandable cannula
US9974893B2 (en) * 2010-06-25 2018-05-22 Ecp Entwicklungsgesellschaft Mbh System for introducing a pump
US8485961B2 (en) 2011-01-05 2013-07-16 Thoratec Corporation Impeller housing for percutaneous heart pump
US8597170B2 (en) 2011-01-05 2013-12-03 Thoratec Corporation Catheter pump
US9138518B2 (en) 2011-01-06 2015-09-22 Thoratec Corporation Percutaneous heart pump
US8591393B2 (en) 2011-01-06 2013-11-26 Thoratec Corporation Catheter pump
US9962475B2 (en) 2011-01-06 2018-05-08 Tc1 Llc Percutaneous heart pump
US9872947B2 (en) 2012-05-14 2018-01-23 Tc1 Llc Sheath system for catheter pump
US10117980B2 (en) 2012-05-14 2018-11-06 Tc1 Llc Distal bearing support
US10039872B2 (en) 2012-05-14 2018-08-07 Tc1 Llc Impeller for catheter pump
US9675740B2 (en) 2012-05-14 2017-06-13 Tc1 Llc Impeller for catheter pump
US8721517B2 (en) 2012-05-14 2014-05-13 Thoratec Corporation Impeller for catheter pump
US9446179B2 (en) 2012-05-14 2016-09-20 Thoratec Corporation Distal bearing support
US9327067B2 (en) 2012-05-14 2016-05-03 Thoratec Corporation Impeller for catheter pump
US9358329B2 (en) 2012-07-03 2016-06-07 Thoratec Corporation Catheter pump
US10086121B2 (en) 2012-07-03 2018-10-02 Tc1 Llc Catheter pump
US9421311B2 (en) 2012-07-03 2016-08-23 Thoratec Corporation Motor assembly for catheter pump
US9381288B2 (en) 2013-03-13 2016-07-05 Thoratec Corporation Fluid handling system
US9308302B2 (en) 2013-03-15 2016-04-12 Thoratec Corporation Catheter pump assembly including a stator
US10105475B2 (en) 2014-04-15 2018-10-23 Tc1 Llc Catheter pump introducer systems and methods
US10029037B2 (en) 2014-04-15 2018-07-24 Tc1 Llc Sensors for catheter pumps
US9827356B2 (en) 2014-04-15 2017-11-28 Tc1 Llc Catheter pump with access ports
US9675739B2 (en) 2015-01-22 2017-06-13 Tc1 Llc Motor assembly with heat exchanger for catheter pump
US9675738B2 (en) 2015-01-22 2017-06-13 Tc1 Llc Attachment mechanisms for motor of catheter pump
US9987404B2 (en) 2015-01-22 2018-06-05 Tc1 Llc Motor assembly with heat exchanger for catheter pump
US9770543B2 (en) 2015-01-22 2017-09-26 Tc1 Llc Reduced rotational mass motor assembly for catheter pump
US9907890B2 (en) 2015-04-16 2018-03-06 Tc1 Llc Catheter pump with positioning brace

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