US2356659A - Nozzle for duodenal pump tubes - Google Patents

Nozzle for duodenal pump tubes Download PDF

Info

Publication number
US2356659A
US2356659A US463506A US46350642A US2356659A US 2356659 A US2356659 A US 2356659A US 463506 A US463506 A US 463506A US 46350642 A US46350642 A US 46350642A US 2356659 A US2356659 A US 2356659A
Authority
US
United States
Prior art keywords
nozzle
duodenal
tube
pump
channels
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
Application number
US463506A
Inventor
Aguiar Clovis De Paiva
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US2356659A publication Critical patent/US2356659A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • A61M3/00—Medical syringes, e.g. enemata; Irrigators
    • A61M3/02—Enemata; Irrigators
    • A61M3/0279—Cannula; Nozzles; Tips; their connection means

Definitions

  • the presentinvention relates to improvements in the nozzles of ⁇ apparatus for the pump treat- ⁇ ment of sinuous organic channels and, more parzle body, usually with some of the holes provided at or near the forward end of the nozzle.
  • These Eknown nozzles are advanced through the body channels which are to be intubated by means of -the gravity of the nozzle aided by the peristaltic movements of the-stomach and intenstines in case of aduodenal tubular pump.
  • Another object of the invention is to provide a new nozzle for a duodenal tubular pump which facilitates and accelerates the forward progress of the nozzle and attached tube through the sinuous body channel leading into the duodenum.
  • Another object of the invention isto provide a nozzle for an intubating apparatus which permits the discharge of liquid from the nozzle before the latter has reached its nal position within the body cavity to be intubated without impairing the progress of the nozzle and attached tube through the body.
  • Still another object of the invention is to facilitate the intubation of sinuous body cavities by means of a nozzle designed to permit acceleration of its forward progress through a body channel by the discharge of liquid from the nozzle during its forward movement through the organic channel.
  • a still further object of the invention is to provide a duodental tubular pump with a nozzle ensuring greater rapidity of the operation and, consequently, less discomfort for the patient.
  • Fig. 1 is an elevational-.sidefview of a duodenal pump nozzle according tothe invention
  • Figs. 42 to 4 are longitudinalsections through three different embodiments, respectively, of nozzles according to the invention.
  • Fig. 5 shows anozzle .according to the inven- Y-tion attached tothe tube/of awduodenalpump of the usual type
  • Fig. 6 illustrates diagrammatically the progress of a nozzle and tube'according to the invention through the stomach and into the duodenum of Ia patient.
  • a nozzle according to the invention consists generally of an oval body II .having a narrow neck I 2 provided with peripheral grooves I3 which serve to secure the nozzle in the usual Yrubber tube I 4, as shown in Fig. 5.
  • the tube VIII is provided at predetermined points along its length with markings I5, I6, I'I to indicate-to theoperator the position-of the nozzle lduring the vprogress thereof through the body.
  • a pumped fluid may enter the-body of the nozzle .through an axial inlet passage I8 extending through the neck I2 .and terminating inside of the body II of the nozzle at a point near the tip thereof, and the fluid is discharged in a generally rearward direction through orifices I9 provided in the rearl'portionjof the body- I I.
  • the forward end of the axial inlet passage communicates with the forward ends of a plurality of discharge channels 20 arranged parallel to the axis of the nozzle and to the axial pas- 4sage I8 and opening at their rear ends into the orifices I9.
  • the inner surface of the nozzle opposite the forward end of the axial passage I8 is provided with a rearwardly pointing deflector surface 2I which has its apex disposed in alignment with the axis of the'nozzle and includes concave walls to guide the fluid emerging vfrom the forward end of said inlet passage smoothly towards said parallel discharge channels 20.
  • the nozzle is provided with a rearwardly pointing deiiector surface 2
  • a duodenal pump provided with a nozzle according to the invention, is introduced into the stomach of the patient in the usual manner.
  • liquid and air are injected into the nozzle ll through the tube l2 ⁇ under a certain pressure at frequent intervals, until the nozzle has reached the desired position in the duodenum.
  • the liquid thus injected under pressure, is forced to spurt out in iine strong jets from the rear part of the nozzle, as indicated by the arrows in Figs. 2 to 4, thus producing a forward propelling action similar to that utilized in rocket propulsion,
  • said nozzle being provided with an axial inlet passage leading through said neck into said body, and a plurality of discharge channels of relatively small diameter communicating inside said ⁇ body with said inlet passage, all of said discharge channels emerging from said body in agenerally Vrearward direction and being so arranged that upon the latter and the attached exible tubeV M increases in inverse ratio to the angle formed by the jets with the axis of the nozzle, particularly good propulsion eects are obtained with nozzles in which the discharge channels v are arranged parallel to the axis ⁇ oi the nozzle and outside of the outer periphery of the neck l2, as shown in Figs. 2 and 3.
  • Another way for obtaining a good forward pro'- pelling eiciency is to provide inside of the nozzle a deflector surface as shown in Figs. 3 and 4 which serves to guide the liquid emerging fromy the inlet passage smoothly into the discharge channels 20, 22, thus eliminating losses of energy due to swirling.
  • Nozzles according to the invention may be used not only for duodenal pump tubes but also for the intubation of other sinuous body channels with such modifications as may be necessary in each case.
  • the nozzles according to the invention may be propelled forwardly by means of the injection of liquid only into the nozzle.
  • Y A greater eiiiciency, however, is obtained if a liquid and a gas, such as air, are injected in succession under a certain pressure. The moment of maximum propulsion is then that which coincides with the sudden release from pressure of the gas after the last po-rtion of the liquid has passed out from the nozzle through the orifices I9.
  • a satisf-actory result is obtained if water and air are injected into the exible tube I4 by means of an ordinary syringe or simiIarinjectOr.
  • jets of iiuid emitted from said discharge channels emerge from said body in a direction substantially parallel to the axis ofthe latter and outside of the outer periphery of said constricted neck, whereby the introduction of a fluid under pressure through said tube into said nozzle and the emission of suc-h fluids through said discharge channels tends to exert a forwardly propelling force on said nozzle and the attached flexible tube.
  • the co-mbination with a flexible tube, of a nozzle comprising a bulb-shaped body having a rounded forward end and, at its rear end, a short neckof reduced diameter to which said flexible tube is attached, said nozzle being provided with an axial inlet passage leading through said neck into said body to a point near the forward end thereof, a plurality of discharge channels of relatively smally CLOVIS DE PAIVA AGUIAR.

Description

Aug- 22- 1944- C. DEPAIVAv AGLjlAR i 22356659 NDZZLE FOR DUODENAL PUMP TUBES Filed oct. 2v. 1942 2 sheets-sheet 1 Clvls de Pcnvq Rqular INVENTOR ArrQRNEY Aug' 22 1944- yc. DE PANA AGUIAR 2,356,659
` I NOZZLE FR DUODENAL PUMP TUBES Filed oct. 27, 1942 2 sheetspsheet 2 Duab; NaI/M l l ArroRNEY I Patented Aug. 22, 1944 UNITED STATES .PATE-N .Y l y2,356,659
T oFFlcE NOZZLE FOR DUODENL`UMP TUBES Clovis de Paiva Aguiar, Juizlde Fora,
Gel-aes, Brazil Application October '27, 1942, Serial `l\I'|IJ.`-f463,506
In Brazil November-v 24, 1941 f 2 claims. ,(cl. 12e-27s) The presentinvention relates to improvements in the nozzles of `apparatus for the pump treat- `ment of sinuous organic channels and, more parzle body, usually with some of the holes provided at or near the forward end of the nozzle. These Eknown nozzles are advanced through the body channels which are to be intubated by means of -the gravity of the nozzle aided by the peristaltic movements of the-stomach and intenstines in case of aduodenal tubular pump. With the known duodenal pump nozzles, the progress of the nozezle lthrough the body cannot be accelerated by the discharge of liquid through the nozzle, and where such discharge takes place before the intubation has been completed, it actually retards the advance of the nozzle thereby prolonging the operationand causing fatigue and suffering to the patient.
It is one object of the present invention to eliminate this inconvenience as much as possible.
Another object of the invention is to provide a new nozzle for a duodenal tubular pump which facilitates and accelerates the forward progress of the nozzle and attached tube through the sinuous body channel leading into the duodenum.
Another object of the invention isto provide a nozzle for an intubating apparatus which permits the discharge of liquid from the nozzle before the latter has reached its nal position within the body cavity to be intubated without impairing the progress of the nozzle and attached tube through the body.
Still another object of the invention is to facilitate the intubation of sinuous body cavities by means of a nozzle designed to permit acceleration of its forward progress through a body channel by the discharge of liquid from the nozzle during its forward movement through the organic channel.
A still further object of the invention is to provide a duodental tubular pump with a nozzle ensuring greater rapidity of the operation and, consequently, less discomfort for the patient.
These and other objects Vare accomplished, ac-
cording to the invention, by the arrangement and combination of parts set forth in the following detailed description, dei-med in the appended 'claims 'and"illustratively-iexempled `in the accompanying drawings inv which:
Fig. 1 is an elevational-.sidefview of a duodenal pump nozzle according tothe invention,
Figs. 42 to 4 are longitudinalsections through three different embodiments, respectively, of nozzles according to the invention.
Fig. 5 shows anozzle .according to the inven- Y-tion attached tothe tube/of awduodenalpump of the usual type,.and y Fig. 6 illustrates diagrammatically the progress of a nozzle and tube'according to the invention through the stomach and into the duodenum of Ia patient.
As shown/in Fig. 1,Y a nozzle according to the invention consists generally of an oval body II .having a narrow neck I 2 provided with peripheral grooves I3 which serve to secure the nozzle in the usual Yrubber tube I 4, as shown in Fig. 5. The tube VIII is provided at predetermined points along its length with markings I5, I6, I'I to indicate-to theoperator the position-of the nozzle lduring the vprogress thereof through the body.
In each of the-nozzles illustrated in Figs. 2 to 4, a pumped fluid may enter the-body of the nozzle .through an axial inlet passage I8 extending through the neck I2 .and terminating inside of the body II of the nozzle at a point near the tip thereof, and the fluid is discharged in a generally rearward direction through orifices I9 provided in the rearl'portionjof the body- I I.
In the embodiment of the invention illustrated in Fig. 2, the forward end of the axial inlet passage communicates with the forward ends of a plurality of discharge channels 20 arranged parallel to the axis of the nozzle and to the axial pas- 4sage I8 and opening at their rear ends into the orifices I9.
According to Fig. 3, the inner surface of the nozzle opposite the forward end of the axial passage I8 is provided with a rearwardly pointing deflector surface 2I which has its apex disposed in alignment with the axis of the'nozzle and includes concave walls to guide the fluid emerging vfrom the forward end of said inlet passage smoothly towards said parallel discharge channels 20.
In the embodiment according to Fig. 4, the nozzle is provided with a rearwardly pointing deiiector surface 2|, as in Fig. 3, but, in this case, the discharge channels 22 which connect the forward end of the inlet passage I8 with the orifices I9 are not parallel to the axis of the nozzle but diverge rearwardly from said axis.
In use, a duodenal pump provided with a nozzle according to the invention, is introduced into the stomach of the patient in the usual manner. As soon, however, as the nozzle Il has reached the stomach liquid and air are injected into the nozzle ll through the tube l2` under a certain pressure at frequent intervals, until the nozzle has reached the desired position in the duodenum. Due to the internal shape of the nozzle, the liquid, thus injected under pressure, is forced to spurt out in iine strong jets from the rear part of the nozzle, as indicated by the arrows in Figs. 2 to 4, thus producing a forward propelling action similar to that utilized in rocket propulsion,
thus facilitating and accelerating the forward progress of thenozzle and attached tube from the stomach into and partly through the duodenum (see Fig. 6).
Since the value of the propelling force exerted by the fluid jets emerging from the nozzle Il Care must be taken in each case that the nature of the iiuids, the pressures and the volumes employed are such as are perfectly tolerated by the organism.
I claim:
1. In an apparatus for the pump tube treatment of sinuous organic channels, the combination with a flexible tube, of a nozzle, comprising a bulb-shaped body having a rounded forward end end, at its rear end, a short neck of reduced diameter to which said flexible tube is attached,
said nozzle being provided with an axial inlet passage leading through said neck into said body, and a plurality of discharge channels of relatively small diameter communicating inside said `body with said inlet passage, all of said discharge channels emerging from said body in agenerally Vrearward direction and being so arranged that upon the latter and the attached exible tubeV M increases in inverse ratio to the angle formed by the jets with the axis of the nozzle, particularly good propulsion eects are obtained with nozzles in which the discharge channels v are arranged parallel to the axis `oi the nozzle and outside of the outer periphery of the neck l2, as shown in Figs. 2 and 3.
Another way for obtaining a good forward pro'- pelling eiciency is to provide inside of the nozzle a deflector surface as shown in Figs. 3 and 4 which serves to guide the liquid emerging fromy the inlet passage smoothly into the discharge channels 20, 22, thus eliminating losses of energy due to swirling.
Nozzles according to the invention may be used not only for duodenal pump tubes but also for the intubation of other sinuous body channels with such modifications as may be necessary in each case.
The nozzles according to the invention may be propelled forwardly by means of the injection of liquid only into the nozzle. Y A greater eiiiciency, however, is obtained if a liquid and a gas, such as air, are injected in succession under a certain pressure. The moment of maximum propulsion is then that which coincides with the sudden release from pressure of the gas after the last po-rtion of the liquid has passed out from the nozzle through the orifices I9.
A satisf-actory result is obtained if water and air are injected into the exible tube I4 by means of an ordinary syringe or simiIarinjectOr.
jets of iiuid emitted from said discharge channels emerge from said body in a direction substantially parallel to the axis ofthe latter and outside of the outer periphery of said constricted neck, whereby the introduction of a fluid under pressure through said tube into said nozzle and the emission of suc-h fluids through said discharge channels tends to exert a forwardly propelling force on said nozzle and the attached flexible tube.
2. In an apparatus for the pump tube treatment of sinuous organic channels, the co-mbination with a flexible tube, of a nozzle, comprising a bulb-shaped body having a rounded forward end and, at its rear end, a short neckof reduced diameter to which said flexible tube is attached, said nozzle being provided with an axial inlet passage leading through said neck into said body to a point near the forward end thereof, a plurality of discharge channels of relatively smally CLOVIS DE PAIVA AGUIAR.
US463506A 1941-11-24 1942-10-27 Nozzle for duodenal pump tubes Expired - Lifetime US2356659A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BR2356659X 1941-11-24

Publications (1)

Publication Number Publication Date
US2356659A true US2356659A (en) 1944-08-22

Family

ID=4083483

Family Applications (1)

Application Number Title Priority Date Filing Date
US463506A Expired - Lifetime US2356659A (en) 1941-11-24 1942-10-27 Nozzle for duodenal pump tubes

Country Status (1)

Country Link
US (1) US2356659A (en)

Cited By (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3071137A (en) * 1960-08-18 1963-01-01 Benjamin W Niebel Animated intestinal tube
US3485237A (en) * 1967-03-20 1969-12-23 Rca Corp Self-propelling hose
US3665928A (en) * 1969-10-06 1972-05-30 Louis R M Del Guercio Self propelled catheter
US3780740A (en) * 1972-11-01 1973-12-25 J Rhea Intubation device and method of advancing a tube past the pylorus
FR2400911A1 (en) * 1977-08-26 1979-03-23 Ims Ltd LARYNGO-TRACHEAL SYRINGE
US4403985A (en) * 1981-05-12 1983-09-13 The United States Of America As Represented By The Department Of Health And Human Services Jet controlled catheter
US4475902A (en) * 1981-03-24 1984-10-09 Werner Schubert Device for introducing medical instruments into a body
US4717381A (en) * 1985-05-13 1988-01-05 Kos Medical Technologies, Ltd. Hydrodynamically propelled catheter
US4769006A (en) * 1985-05-13 1988-09-06 Kos Medical Technologies, Ltd. Hydrodynamically propelled pacing catheter
US5616137A (en) * 1995-02-22 1997-04-01 Minnesota Mining And Manufacturing Company Low velocity aortic cannula
US5643226A (en) * 1993-02-24 1997-07-01 Minnesota Mining And Manufacturing Low velocity aortic cannula
US5685865A (en) * 1993-02-24 1997-11-11 Minnesota Mining And Manufacturing Company Low velocity aortic cannula
US20010003795A1 (en) * 1997-07-22 2001-06-14 Mitta Suresh Catheter system and method for posterior epicardial revascularization and intracardiac surgery on a beating heart
US20020062119A1 (en) * 1996-05-20 2002-05-23 Gholam-Reza Zadno-Azizi Methods and apparatuses for drug delivery to an intravascular occlusion
US20050006421A1 (en) * 2003-07-09 2005-01-13 Jui-Hung Shu Nozzle for a sanitary cleansing device
JP2005517473A (en) * 2002-02-14 2005-06-16 オーキス メディカル コーポレーション Multi-lumen catheter to minimize limb ischemia
WO2005104928A1 (en) * 2004-04-28 2005-11-10 Ucl Biomedica Plc Fluid propelled endoscope
US20080114339A1 (en) * 2006-03-23 2008-05-15 The Penn State Research Foundation Heart assist device with expandable impeller pump
US20090060743A1 (en) * 2004-09-17 2009-03-05 The Penn State Research Foundation Expandable impeller pump
US20090240197A1 (en) * 2006-04-21 2009-09-24 Medrad, Inc. Central venous catheters and related equipment
AU2008200502B2 (en) * 2002-02-14 2011-03-10 Thoratec Corporation A Multilumen Catheter for Minimizing Limb Ischemia
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
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
US10583232B2 (en) 2014-04-15 2020-03-10 Tc1 Llc Catheter pump with off-set motor position
US11219756B2 (en) 2012-07-03 2022-01-11 Tc1 Llc Motor assembly for catheter pump
US11229786B2 (en) 2012-05-14 2022-01-25 Tc1 Llc Impeller for catheter pump
US11850414B2 (en) 2013-03-13 2023-12-26 Tc1 Llc Fluid handling system

Cited By (94)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3071137A (en) * 1960-08-18 1963-01-01 Benjamin W Niebel Animated intestinal tube
US3485237A (en) * 1967-03-20 1969-12-23 Rca Corp Self-propelling hose
US3665928A (en) * 1969-10-06 1972-05-30 Louis R M Del Guercio Self propelled catheter
US3780740A (en) * 1972-11-01 1973-12-25 J Rhea Intubation device and method of advancing a tube past the pylorus
FR2400911A1 (en) * 1977-08-26 1979-03-23 Ims Ltd LARYNGO-TRACHEAL SYRINGE
US4475902A (en) * 1981-03-24 1984-10-09 Werner Schubert Device for introducing medical instruments into a body
US4403985A (en) * 1981-05-12 1983-09-13 The United States Of America As Represented By The Department Of Health And Human Services Jet controlled catheter
US4769006A (en) * 1985-05-13 1988-09-06 Kos Medical Technologies, Ltd. Hydrodynamically propelled pacing catheter
US4717381A (en) * 1985-05-13 1988-01-05 Kos Medical Technologies, Ltd. Hydrodynamically propelled catheter
US5643226A (en) * 1993-02-24 1997-07-01 Minnesota Mining And Manufacturing Low velocity aortic cannula
US5685865A (en) * 1993-02-24 1997-11-11 Minnesota Mining And Manufacturing Company Low velocity aortic cannula
US5616137A (en) * 1995-02-22 1997-04-01 Minnesota Mining And Manufacturing Company Low velocity aortic cannula
US20020062119A1 (en) * 1996-05-20 2002-05-23 Gholam-Reza Zadno-Azizi Methods and apparatuses for drug delivery to an intravascular occlusion
US6958059B2 (en) 1996-05-20 2005-10-25 Medtronic Ave, Inc. Methods and apparatuses for drug delivery to an intravascular occlusion
US20010003795A1 (en) * 1997-07-22 2001-06-14 Mitta Suresh Catheter system and method for posterior epicardial revascularization and intracardiac surgery on a beating heart
US7998054B2 (en) 1997-10-09 2011-08-16 Thoratec Corporation Implantable heart assist system and method of applying same
JP2005517473A (en) * 2002-02-14 2005-06-16 オーキス メディカル コーポレーション Multi-lumen catheter to minimize limb ischemia
AU2008200502B2 (en) * 2002-02-14 2011-03-10 Thoratec Corporation A Multilumen Catheter for Minimizing Limb Ischemia
US6918517B2 (en) * 2003-07-09 2005-07-19 Jui-Hung Shu Nozzle for a sanitary cleansing device
US20050006421A1 (en) * 2003-07-09 2005-01-13 Jui-Hung Shu Nozzle for a sanitary cleansing device
US8684902B2 (en) 2003-09-18 2014-04-01 Thoratec Corporation Rotary blood pump
US8118724B2 (en) 2003-09-18 2012-02-21 Thoratec Corporation Rotary blood pump
WO2005104928A1 (en) * 2004-04-28 2005-11-10 Ucl Biomedica Plc Fluid propelled endoscope
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
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
US8376707B2 (en) 2004-09-17 2013-02-19 Thoratec Corporation 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
US11428236B2 (en) 2004-09-17 2022-08-30 Tc1 Llc Expandable impeller pump
US11434921B2 (en) 2004-09-17 2022-09-06 Tc1 Llc Expandable impeller pump
US20090060743A1 (en) * 2004-09-17 2009-03-05 The Penn State Research Foundation Expandable impeller pump
US7841976B2 (en) 2006-03-23 2010-11-30 Thoratec Corporation Heart assist device with expandable impeller pump
US11708833B2 (en) 2006-03-23 2023-07-25 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
US10149932B2 (en) 2006-03-23 2018-12-11 The Penn State Research Foundation Heart assist device with expandable impeller pump
US10864309B2 (en) 2006-03-23 2020-12-15 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
US20090240197A1 (en) * 2006-04-21 2009-09-24 Medrad, Inc. Central venous catheters and related equipment
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
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
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
US9138518B2 (en) 2011-01-06 2015-09-22 Thoratec Corporation Percutaneous heart pump
US9675740B2 (en) 2012-05-14 2017-06-13 Tc1 Llc Impeller for catheter pump
US10117980B2 (en) 2012-05-14 2018-11-06 Tc1 Llc Distal bearing support
US11357967B2 (en) 2012-05-14 2022-06-14 Tc1 Llc Impeller for catheter pump
US10765789B2 (en) 2012-05-14 2020-09-08 Tc1 Llc Impeller for catheter pump
US9327067B2 (en) 2012-05-14 2016-05-03 Thoratec Corporation Impeller for catheter pump
US9872947B2 (en) 2012-05-14 2018-01-23 Tc1 Llc Sheath system for catheter pump
US11311712B2 (en) 2012-05-14 2022-04-26 Tc1 Llc Impeller for catheter pump
US9446179B2 (en) 2012-05-14 2016-09-20 Thoratec Corporation Distal bearing support
US11260213B2 (en) 2012-05-14 2022-03-01 Tc1 Llc Impeller for catheter pump
US11229786B2 (en) 2012-05-14 2022-01-25 Tc1 Llc Impeller for catheter pump
US10039872B2 (en) 2012-05-14 2018-08-07 Tc1 Llc Impeller for catheter pump
US8721517B2 (en) 2012-05-14 2014-05-13 Thoratec Corporation Impeller for catheter pump
US11654276B2 (en) 2012-07-03 2023-05-23 Tc1 Llc Catheter pump
US11058865B2 (en) 2012-07-03 2021-07-13 Tc1 Llc Catheter pump
US9421311B2 (en) 2012-07-03 2016-08-23 Thoratec Corporation Motor assembly for catheter pump
US11833342B2 (en) 2012-07-03 2023-12-05 Tc1 Llc Motor assembly for catheter pump
US10576193B2 (en) 2012-07-03 2020-03-03 Tc1 Llc Motor assembly for catheter pump
US11660441B2 (en) 2012-07-03 2023-05-30 Tc1 Llc Catheter pump
US10086121B2 (en) 2012-07-03 2018-10-02 Tc1 Llc Catheter pump
US11219756B2 (en) 2012-07-03 2022-01-11 Tc1 Llc Motor assembly for catheter pump
US11925797B2 (en) 2012-07-03 2024-03-12 Tc1 Llc Motor assembly for catheter pump
US11925796B2 (en) 2012-07-03 2024-03-12 Tc1 Llc Motor assembly for catheter pump
US11944802B2 (en) 2012-07-03 2024-04-02 Tc1 Llc Motor assembly for catheter pump
US9358329B2 (en) 2012-07-03 2016-06-07 Thoratec Corporation Catheter pump
US11944801B2 (en) 2012-07-03 2024-04-02 Tc1 Llc Motor assembly for catheter pump
US11850414B2 (en) 2013-03-13 2023-12-26 Tc1 Llc Fluid handling system
US11547845B2 (en) 2013-03-13 2023-01-10 Tc1 Llc Fluid handling system
US10632241B2 (en) 2013-03-13 2020-04-28 Tc1 Llc Fluid handling system
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
US11786720B2 (en) 2014-04-15 2023-10-17 Tc1 Llc Catheter pump with off-set motor position
US11331470B2 (en) 2014-04-15 2022-05-17 Tc1 Llc Catheter pump with access ports
US10864308B2 (en) 2014-04-15 2020-12-15 Tc1 Llc Sensors for catheter pumps
US9827356B2 (en) 2014-04-15 2017-11-28 Tc1 Llc Catheter pump with access ports
US11173297B2 (en) 2014-04-15 2021-11-16 Tc1 Llc Catheter pump with off-set motor position
US10709829B2 (en) 2014-04-15 2020-07-14 Tc1 Llc Catheter pump introducer systems and methods
US10029037B2 (en) 2014-04-15 2018-07-24 Tc1 Llc Sensors for catheter pumps
US10583232B2 (en) 2014-04-15 2020-03-10 Tc1 Llc Catheter pump with off-set motor position
US10576192B2 (en) 2014-04-15 2020-03-03 Tc1 Llc Catheter pump with access ports
US10105475B2 (en) 2014-04-15 2018-10-23 Tc1 Llc Catheter pump introducer systems and methods
US9675739B2 (en) 2015-01-22 2017-06-13 Tc1 Llc Motor assembly with heat exchanger for catheter pump
US11633586B2 (en) 2015-01-22 2023-04-25 Tc1 Llc Motor assembly with heat exchanger for catheter pump
US9987404B2 (en) 2015-01-22 2018-06-05 Tc1 Llc Motor assembly with heat exchanger for catheter pump
US10737005B2 (en) 2015-01-22 2020-08-11 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
US9675738B2 (en) 2015-01-22 2017-06-13 Tc1 Llc Attachment mechanisms for motor of catheter pump
US9907890B2 (en) 2015-04-16 2018-03-06 Tc1 Llc Catheter pump with positioning brace

Similar Documents

Publication Publication Date Title
US2356659A (en) Nozzle for duodenal pump tubes
US3828767A (en) Angiographic and arteriographic catherters
US3459175A (en) Medical device for control of enemata
KR860001795B1 (en) Fiberscope
US811111A (en) Syringe.
US9387310B2 (en) Balloon catheter system
US20050267334A1 (en) Fluid propelled endoscope
CN101554498A (en) Needleless injection system used for continuously injecting animals
US10750931B2 (en) Systems and methods for generating a fluid bearing for an operative procedure
US1581508A (en) Vaginal syringe
US2180063A (en) Syringe
US1923409A (en) Ointment applying syringe
US2393728A (en) Nozzle for duodenal pump tubes
US2470293A (en) Nozzle
GB1173194A (en) A Medical Instrument
US1444889A (en) sladden
GB1405025A (en) Tubular protoscope or sigmoidoscope instrument
US20210076913A1 (en) Endoscope apparatus and method of operating endoscope apparatus
US973456A (en) Vaginal syringe.
CN202620448U (en) Multi-cavity stomach tube
US2036218A (en) Vaginal and rectal syringe
JP2009279159A (en) Distal hood of endoscope with treatment tool standing device
US1221084A (en) Syringe.
US1194215A (en) Medicine
US913515A (en) Fluid-propelled vessel.