DE2233293A1 - DEVICE TO FACILITATE HEARTINESS - Google Patents

DEVICE TO FACILITATE HEARTINESS

Info

Publication number
DE2233293A1
DE2233293A1 DE2233293A DE2233293A DE2233293A1 DE 2233293 A1 DE2233293 A1 DE 2233293A1 DE 2233293 A DE2233293 A DE 2233293A DE 2233293 A DE2233293 A DE 2233293A DE 2233293 A1 DE2233293 A1 DE 2233293A1
Authority
DE
Germany
Prior art keywords
catheter
blood
aortic
chamber
heart
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.)
Granted
Application number
DE2233293A
Other languages
German (de)
Other versions
DE2233293C3 (en
DE2233293B2 (en
Inventor
Wladimir Pantelejmonow Chrenow
Lew Nikolajewitsch Martynow
Arsenij Nikolaj Medeljanowskij
Rustam Ismailowits Utjamyschew
Stanislaw Borisowitsch Wawilow
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.)
VNI I ISPYTATELNYJ I MED TECHN
Original Assignee
VNI I ISPYTATELNYJ I MED TECHN
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 VNI I ISPYTATELNYJ I MED TECHN filed Critical VNI I ISPYTATELNYJ I MED TECHN
Publication of DE2233293A1 publication Critical patent/DE2233293A1/en
Publication of DE2233293B2 publication Critical patent/DE2233293B2/en
Application granted granted Critical
Publication of DE2233293C3 publication Critical patent/DE2233293C3/en
Expired legal-status Critical Current

Links

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
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
    • A61M25/0074—Dynamic characteristics of the catheter tip, e.g. openable, closable, expandable or deformable
    • A61M25/0075—Valve means
    • 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
    • A61M60/109—Extracorporeal pumps, i.e. the blood being pumped outside the patient's body incorporated within extracorporeal blood circuits or systems
    • 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
    • A61M60/274—Positive displacement blood pumps including a displacement member directly acting on the blood the displacement member being flexible, e.g. membranes, diaphragms or bladders the inlet and outlet being the same, e.g. para-aortic counter-pulsation blood 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
    • A61M60/80—Constructional details other than related to driving
    • A61M60/845—Constructional details other than related to driving of extracorporeal blood pumps
    • A61M60/851—Valves
    • 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
    • A61M60/894—Passive valves, i.e. valves actuated by the blood
    • A61M60/896—Passive valves, i.e. valves actuated by the blood having flexible or resilient parts, e.g. flap valves
    • 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
    • A61M25/00—Catheters; Hollow probes
    • A61M25/0067—Catheters; Hollow probes characterised by the distal end, e.g. tips
    • A61M25/0074—Dynamic characteristics of the catheter tip, e.g. openable, closable, expandable or deformable
    • A61M25/0075—Valve means
    • A61M2025/0076—Unidirectional valves
    • 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
    • A61M60/122—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body
    • A61M60/126—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable via, into, inside, in line, branching on, or around a blood vessel
    • A61M60/148—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable via, into, inside, in line, branching on, or around a blood vessel in line with a blood vessel using resection or like techniques, e.g. permanent endovascular heart assist devices

Description

PATENTANWÄLTE £ Z 3 3 <C 9 3PATENT Attorneys £ Z 3 3 <C 9 3

DR. Ο..DlTTMANN K. L. SCHIPP DR. A. ν. FÜNER DIPL. ING. P. STRBHL 8 MÜNCHEN 90 MARIAHrLFPLATZ 2&8DR. Ο..DlTTMANN K. L. SCHIPP DR. A. ν. FIVE DIPL. ING. P. STRBHL 8 MUNICH 90 MARIAHrLFPLATZ 2 & 8

DA-8565DA-8565

Beschreibungdescription

zu der
Patentanmeldungto the
Patent application

desof

Wsesojusnyj nautschno-issledowatelskij i ispytatelnyj Institut medizinskoj techniki, UdSSR, Moskau, uliza Kasatkina, 3Vsezoyusnyj nautschno-issledowatelskij i ispytatelnyj institute medizinskoj techniki, USSR, Moscow, Kasatkina Street, 3

betreffend :concerning :

EINRICHTUNG ZUR ERLEICHTERUNG DER HERZTlTIGKEIiE (Priorität: 6.JuIi 1971 UdSSR Nr. 1 671 925)DEVICE TO FACILITATE THE HEARTFULNESS (Priority: July 6, 1971 USSR No. 1 671 925)

Die vorliegende Erfindung betrifft die medizinische Technik und bezieht sich auf Einrichtungen zur Erleichterung der Herz.-tätigkeit, die wahrend systolischer Herzschwächen beim Myokardinfarkt, kardiogenem Schock usw. ihre Anwendung finden.The present invention relates to medical technology and relates to devices for facilitating cardiac activity. those during systolic heart failure in myocardial infarction, cardiogenic shock, etc. find their application.

. Es ist bereits eine Einrichtung zur Erleichterung der.Herztätigkeit bekannt (s„ Zeitschrift USA "Krovoobrashenie", 1969» 39i5j Beilage 1, Seiten 99 bis 103), die eine Pumpe zur kardiosynchronisierten Förderung von Blut und einen kurzen Katheter einschließt, der in den Raum der Aortenkammer durch einen Einschnitt in der Aortenkammerwand eingeführt wird und mit dem Eingang der Pumpe über ein Leitungsrohr in Verbindung steht. Der Austritt dieser Pumpe wird mittels eines anderen, in die Aorta nach Zerschneiden der Wandung derselben einge- führten Katheters mit dem Aortenbogen in Verbindung gesetzt. Die Blutpumpe saugt das Blut aus der Aortenkammer. It is already a facility to facilitate the activity of the heart known (see "Magazine USA" Krovoobrashenie ", 1969» 39i5j supplement 1, pages 99 to 103), which has a pump for cardiosynchronized Includes conveying blood and a short catheter that goes into the space of the aortic chamber through a Incision is made in the aortic chamber wall and connected to the inlet of the pump via a conduit stands. The outlet of this pump is controlled by another, introduced into the aorta after cutting the wall of the same Catheter connected to the aortic arch. The blood pump sucks the blood out of the aortic chamber

209884/0950209884/0950

über den ersteren, kürzeren Katheter ab und fördert es in den Aortenbogen hinein.via the former, shorter catheter and conveys it into the Aortic arch into it.

Die bekannte Einrichtung zur Erleichterung der Herztätigkeit ist deshalb nachteilig, weil zu ihrer Benutzung eine schwere Operation der Brusthöhle vorgenommen werden muß, und zwar muß das Herz freigelegt, die Spitze der Aortenkammer freigelegt, das kürzere Katheter der ansaugenden Eintrittsseite der Blutpumpe in ihren Hohlraum eingeführt und in diesem festgelegt, die Aortenwand zerschnitten und in diese das kurze, mit dem druckseitigen Austrittspumpenteil verbundene Katheter eingenäht werden.The well-known device for facilitating the heart's activity is disadvantageous in that a serious operation of the thoracic cavity must be performed in order to use it, and it is true that the heart must be exposed, the tip of the aortic chamber exposed, the shorter catheter of the aspirating entry side the blood pump is introduced into its cavity and fixed in it, the aortic wall is cut and the short, Catheters connected to the outlet pump part on the pressure side are sewn in.

Hierdurch ist es praktisch unmöglich, diese Einrichtung bei starker Infarktverletzung des Herzens und beim kardiogenen Schock zu benutzen, d.h. eben bei den Verhältnissen, bei denen die genannte Hilfe sich lohnt und unerläßlich ist.This makes it practically impossible to use this device in the case of severe heart attack and cardiogenic To use shock, i.e. in those circumstances in which the help mentioned is worthwhile and essential.

Zweck der Erfindung ist es, den genannten Nachteil zu beseitigen. The purpose of the invention is to eliminate the disadvantage mentioned.

Der Erfindung liegt die Aufgabe zugrunde, eine Einrichtung zur Erleichterung der Herztätigkeit zu entwickeln, die es ermöglicht, die chirurgischen Eingriffebei der Hilfeleistung zu verkürzen und zu vereinfachen, wodurch eine beschleunigte und leichtere Anwendung der betreffenden Einrichtung zustande kommen soll, und ein peripherischer Anschluß derselben stattfinden kann.The invention is based on the object of developing a device for facilitating cardiac activity which it enables the surgical interventions in the provision of assistance to shorten and simplify, which results in a faster and easier application of the facility in question should come, and a peripheral connection of the same can take place.

Die gestellte Aufgabe wird dadurch gelöst, daß in der Ein·* richtung zur Erleichterung der Herztätigkeit, die eine BlutpumpeThe problem posed is achieved by the fact that in the one * direction to facilitate the heart, the use of a blood pump

209884/0950209884/0950

zur kardi©synchronisierten Blutförderung einschließt, die mit einem in den Hohlraum der Aortenkammer einzuführenden Katheter in Verbindung steht, erfindungsgemäß am Ende des zur Einführung in den Hohlraum der Aortenkammer über den Aortenbogen vorgesehenen Katheter eine zur Abnahme einer Blutportion aus der erwähnten Aortenkammer vorgesehene Saugklappe montiert und in .einer dem Längsdurchmesser des Innenraums der Aortenkammer entsprechenden Entfernung vom Katheterende eine Druckklappe angeordnet ist, die zum Herauswerfen dieser Blutportion in den Aortenbogen dient· · .- - for kardi © synchronized blood delivery, which is connected to a catheter to be inserted into the cavity of the aortic chamber, according to the invention, at the end of the catheter intended for introduction into the cavity of the aortic chamber via the aortic arch, a suction valve intended to take a portion of blood from the mentioned aortic chamber is mounted and At a distance from the end of the catheter corresponding to the longitudinal diameter of the interior of the aortic chamber, a pressure flap is arranged, which serves to eject this portion of blood into the aortic arch .

Die erfindungsgemäße Einrichtung zur Erleichterung der Herzaktion ermöglicht es, bei ihrer Anwendung die verwundende Brusthöhlenoperation, und zwar einen Einschnitt in der Wand ' der Aortenkammerspitze und ein Zerschneiden der Aortenbogenwand zu vermeiden, gewährleistet eine beschleunigte und einfachere Benutzung beim schweren Myokardinfarkt und kardiogenen Schock, wie auch bei starker Herzschwäche und kann sowohl unter klinischen Verhältnissen und in einem Krankenhaus als auch in speziellen Fahrzeugen bzw. beim Kranken zu Hause ihre Anwendung finden·The device according to the invention for facilitating the action of the heart makes it possible to use the wounding Chest surgery, namely an incision in the wall ' Avoiding the tip of the aortic chamber and cutting the aortic arch wall ensures faster and easier use in severe myocardial infarction and cardiogenic shock, such as even with severe cardiac insufficiency and can be used both under clinical conditions and in a hospital as well as in special vehicles or are used at the sick person's home

Nachstehend wird die Erfindung anhand der Beschreibung eines Ausführungsbeispiels und der beigefügten Zeichnungen näher erläutert. Es zeigen: .The invention is explained in more detail below with reference to the description of an exemplary embodiment and the accompanying drawings explained. Show it: .

. Fig.Λ eine erfindungsgemäße Einrichtung zur Erleichterung der Herztätigkeit im in den Hohlraum der Aortenkammer eingeführten Zustand in schematischer Darstellung;. Fig. Λ a device according to the invention for facilitating the heart activity in the state inserted into the cavity of the aortic chamber in a schematic representation;

209884/0950209884/0950

Fig. 2 einen Längsschnitt des Endteils des erfindungsgemäßen Katheters im vergrößerten Maßstab; Fig. 3 denselben Katheter während des Blutansaugens;Fig. 2 is a longitudinal section of the end part of the invention Catheter on an enlarged scale; 3 shows the same catheter during blood suction;

Fig. 4 denselben Katheter während des Blutpumpens in den Aortenbogen.4 shows the same catheter during blood pumping into the aortic arch.

Die Einrichtung zur Erleichterung der Herztätigkeit enthält eine Blutpumpe 1 (Fig. 1) zur kardiosynchronisierten Blutförderung, beispielsweise eine Kammerpumpe, einen Katheter 2 zum Ansaugen und Herausdrücken des Bluts mit einer Saugklappe 3 an seinem Ende, die zur Abnahme einer Blutportion aus dem Innenrauin der Aortenkammer 4 dient, und eine Druckklappe 5, die am Ende des Katheters 2 in der dem Längsdurchmesser des Innenraums der Aortenkammer 4 entsprechenden Entfernung angeordnet ist und zum Herauswerfen der angesaugten Blutportion in den Bogen der Aorte 6 dient. Die Saugklappe 3 stellt Schlitze 7 (Fig. 2) dar, an welchen an der Innenseite des Katheters 2 elastische Lamellen 8 anliegen. Die Druckklappe 3 besteht aus Schlitzen 9, an welchen an der Außenseite des Katheters 2 elastische Lamellen 10 anliegen.The device for facilitating cardiac activity contains a blood pump 1 (Fig. 1) for cardiosynchronized blood delivery, for example a chamber pump, a catheter 2 for sucking in and forcing out the blood with a suction flap 3 at its end, which is used to remove a portion of blood from the interior of the aortic chamber 4 is used, and a pressure flap 5, which is arranged at the end of the catheter 2 at the distance corresponding to the longitudinal diameter of the interior of the aortic chamber 4 and is used to eject the sucked-in blood portion into the arch of the aorta 6. The suction flap 3 represents slots 7 (FIG. 2) on which elastic lamellae 8 rest on the inside of the catheter 2. The pressure flap 3 consists of slots 9, on which elastic lamellae 10 rest on the outside of the catheter 2.

Die Wirkungsweise der-erfindungsgemäßen Einrichtung zur Erleichterung der Herzaktion ist folgende.The mode of operation of the device according to the invention for Facilitation of the heart's action is as follows.

Um die Einrichtung einzuführen, wird unter lokaler Anästhesie eine der peripherischen Arterien, beispielsweise die linke unter dem Schlüsselbein liegende Arterie aufgedeckt und durch einer Einschnitt in deren Wand der Katheter 2 in den Bogen der AorteTo insert the device, one of the peripheral arteries, such as the left one, is placed under local anesthesia The artery lying under the collarbone is uncovered and the catheter 2 is inserted into the arch of the aorta through an incision in its wall

209884/0950 .209884/0950.

2^332932 ^ 33293

(Pig. 1) in Bichtung' zu den Aortenklappen der Aortenkammer 4 eingeführt. Die Saugklappe 3 des Katheters 2 passiert dabei die Klappenöffnung der Aortenkammer 4- und tritt in den Hohlraum der Aortenkammer 4 des Herzens ein. Dabei wird die Saugklappe 3 im genannten Herzkaramerraum derart untergebracht, daß die Druckklappe 5 des Katheters 2 im aufsteigenden Teil des Aortenbogens 6 im Überklappenraum der Aorte zu liegen kommt. Die Kontrolle der Stellung des Katheters 2 kam. mit Hilfe von Fernröntgenanlage durchgeführt werden.(Pig. 1) in direction of the aortic valves of the aortic chamber 4 introduced. The suction valve 3 of the catheter 2 passes through the valve opening of the aortic chamber 4- and enters the cavity of the Aortic chamber 4 of the heart. The suction flap 3 is accommodated in the aforementioned cardiac chamber in such a way that the pressure flap 5 of the catheter 2 comes to lie in the ascending part of the aortic arch 6 in the flap space of the aorta. The control the position of the catheter 2 came. be carried out with the help of a cephalometric system.

Beim Anlassen der Blutpumpe 1 entwickelt sich in deren Kammer am Ende der Diastole und während der Systole ein Unter-: druck und das Blut tritt aus dem Hohlraum der Aortenkammer 4 des Herzens durch die Schlitze 7 (Fig·. 3) äer Saugklappe 3 in den Katheter 2 und dann in die Kammer der Blutpumpe 1 ein (ELg,1) Dabei sind die Schlitze 9 (Fig. 3) äei· Druckklappe 5 i&it den elastischen Lamellen 10 verschlossen (die Blutströmungsrichtung ist durch Pfeile angedeutet).When the blood pump 1 is started, it develops in it Chamber at the end of the diastole and during the systole a sub-: pressure and the blood emerges from the cavity of the aortic chamber 4 of the heart through the slits 7 (Fig. 3) of the suction valve 3 in the catheter 2 and then into the chamber of the blood pump 1 (ELg, 1) The slots 9 (FIG. 3) are aei · pressure flap 5i & it the elastic lamellae 10 closed (the direction of blood flow is indicated by arrows).

Nachdem die Systole zu Ende ist, setzt in der Kammer der Blutpumpe 1 (Fig, 1) ein Überdruck ein und das Blut tritt aus der Kammer der Blutpumpe 1 durch den Katheter 2 und die Schlitze 9 in den Bogen der Aorte 6 (Fig. 1) hinein, wie das in Fig. 4 durch Pfeile angedeutet ist. Die Schlitze 7 (Fig„ 4·) sind dabei verschlossen.After the systole has ended, the Blood pump 1 (Fig, 1) a positive pressure and the blood exits the chamber of the blood pump 1 through the catheter 2 and the Slits 9 in the arch of the aorta 6 (Fig. 1), like that is indicated in Fig. 4 by arrows. The slots 7 (Fig "4 ·) are locked.

Pat ent ansprüchePatent claims 209886/0960209886/0960

Claims (1)

PATENTANSPRUCHPATENT CLAIM Einrichtung zur Erleichterung der Herztätigkeit, die eine Blutpumpe zur kardiosynchronisierten Blut förderung, Vielehe mit einem in den Hohlraum der Aortenkammer des Herzens einzuführenden Katheter in Verbindung steht, enthält, dadurch gekennzeichnet , daß am Ende des Katheters (2), das zur Einführung in den Hohlraum der Aortenkammer (4) durch den Bogen der Aorte (6) vorgesehen ist, eine zur Abnahme einer Blutportion aus der genannten Aortenkammer (4) dienende Saugklappe (3) montiert und in einer Entfernung am Ende des Katheters (2), die dem Längsdurchmesser des Innenraums der Aortenkammer (4) des Herzes 3:1tnprieht, ei.:3 Druckklappe (5) angeordnet ist, die zum Herauswerfen dieser Blutportion in den Bogen der Aorte (6) dient.Device for the facilitation of the heart's activity, the one Blood pump for cardiosynchronized blood pumping, polygamy with a catheter to be inserted into the cavity of the aortic chamber of the heart, characterized in that that at the end of the catheter (2), which is to be introduced into the cavity of the aortic chamber (4) through the The arch of the aorta (6) is provided, a suction flap serving to remove a portion of blood from said aortic chamber (4) (3) mounted and at a distance at the end of the catheter (2) that corresponds to the longitudinal diameter of the interior of the aortic chamber (4) of the heart 3: 1tnpritzt, a.:3 pressure flap (5) is arranged, which serves to eject this portion of blood into the arch of the aorta (6). 2Q98B4/Q92Q98B4 / Q9 L e e r s e i t eL e r s e i t e
DE19722233293 1971-07-06 1972-07-06 Device to facilitate the heart's activity Expired DE2233293C3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SU1671925A SU400331A1 (en) 1971-07-06 1971-07-06
SU1671925 1971-07-06

Publications (3)

Publication Number Publication Date
DE2233293A1 true DE2233293A1 (en) 1973-01-25
DE2233293B2 DE2233293B2 (en) 1976-02-12
DE2233293C3 DE2233293C3 (en) 1976-09-30

Family

ID=

Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2520236A1 (en) * 1979-08-20 1983-07-29 Groshong Leroy METHOD AND APPARATUS FOR THE IMPLEMENTATION OF INTRAVENOUS THERAPY COMPRISING HYPERIMENSION
US4685446A (en) * 1984-02-21 1987-08-11 Choy Daniel S J Method for using a ventricular assist device
US4771765A (en) * 1984-02-21 1988-09-20 Choy Daniel S J Heart assist device and method of use
US4902273A (en) * 1984-02-21 1990-02-20 Choy Daniel S J Heart assist device
US4985014A (en) * 1989-07-11 1991-01-15 Orejola Wilmo C Ventricular venting loop
US5092879A (en) * 1988-02-17 1992-03-03 Jarvik Robert K Intraventricular artificial hearts and methods of their surgical implantation and use
US5290263A (en) * 1989-02-02 1994-03-01 Regents Of The University Of Minnesota Bidirectional check valve catheter
US6083260A (en) * 1997-07-11 2000-07-04 A-Med Systems, Inc. Reverse flow transport pump and organ stabilization apparatus including related methods
US6395026B1 (en) 1998-05-15 2002-05-28 A-Med Systems, Inc. Apparatus and methods for beating heart bypass surgery
US8926492B2 (en) 2011-10-11 2015-01-06 Ecp Entwicklungsgesellschaft Mbh Housing for a functional element
US8932141B2 (en) 2009-10-23 2015-01-13 Ecp Entwicklungsgesellschaft Mbh Flexible shaft arrangement
US8944748B2 (en) 2009-05-05 2015-02-03 Ecp Entwicklungsgesellschaft Mbh Fluid pump changeable in diameter, in particular for medical application
US8979493B2 (en) 2009-03-18 2015-03-17 ECP Entwicklungsgesellscaft mbH Fluid pump
US8998792B2 (en) 2008-12-05 2015-04-07 Ecp Entwicklungsgesellschaft Mbh Fluid pump with a rotor
US9028216B2 (en) 2009-09-22 2015-05-12 Ecp Entwicklungsgesellschaft Mbh Rotor for an axial flow pump for conveying a fluid
US9067006B2 (en) 2009-06-25 2015-06-30 Ecp Entwicklungsgesellschaft Mbh Compressible and expandable blade for a fluid pump
US9089670B2 (en) 2009-02-04 2015-07-28 Ecp Entwicklungsgesellschaft Mbh Catheter device having a catheter and an actuation device
US9217442B2 (en) 2010-03-05 2015-12-22 Ecp Entwicklungsgesellschaft Mbh Pump or rotary cutter for operation in a fluid
US9314558B2 (en) 2009-12-23 2016-04-19 Ecp Entwicklungsgesellschaft Mbh Conveying blades for a compressible rotor
US9328741B2 (en) 2010-05-17 2016-05-03 Ecp Entwicklungsgesellschaft Mbh Pump arrangement
US9339596B2 (en) 2009-12-23 2016-05-17 Ecp Entwicklungsgesellschaft Mbh Radially compressible and expandable rotor for a fluid pump
US9358330B2 (en) 2009-12-23 2016-06-07 Ecp Entwicklungsgesellschaft Mbh Pump device having a detection device
US9416791B2 (en) 2010-01-25 2016-08-16 Ecp Entwicklungsgesellschaft Mbh Fluid pump having a radially compressible rotor
US9416783B2 (en) 2009-09-22 2016-08-16 Ecp Entwicklungsgellschaft Mbh Compressible rotor for a fluid pump
US9603983B2 (en) 2009-10-23 2017-03-28 Ecp Entwicklungsgesellschaft Mbh Catheter pump arrangement and flexible shaft arrangement having a core
US9611743B2 (en) 2010-07-15 2017-04-04 Ecp Entwicklungsgesellschaft Mbh Radially compressible and expandable rotor for a pump having an impeller blade
US9771801B2 (en) 2010-07-15 2017-09-26 Ecp Entwicklungsgesellschaft Mbh Rotor for a pump, produced with a first elastic material
US9867916B2 (en) 2010-08-27 2018-01-16 Berlin Heart Gmbh Implantable blood conveying device, manipulating device and coupling device
US9895475B2 (en) 2010-07-15 2018-02-20 Ecp Entwicklungsgesellschaft Mbh Blood pump for the invasive application within a body of a patient
US9974893B2 (en) 2010-06-25 2018-05-22 Ecp Entwicklungsgesellschaft Mbh System for introducing a pump
US10107299B2 (en) 2009-09-22 2018-10-23 Ecp Entwicklungsgesellschaft Mbh Functional element, in particular fluid pump, having a housing and a conveying element
US10172985B2 (en) 2009-08-06 2019-01-08 Ecp Entwicklungsgesellschaft Mbh Catheter device having a coupling device for a drive device
US10391278B2 (en) 2011-03-10 2019-08-27 Ecp Entwicklungsgesellschaft Mbh Push device for the axial insertion of an elongate, flexible body
US11666746B2 (en) 2011-09-05 2023-06-06 Ecp Entwicklungsgesellschaft Mbh Medical product comprising a functional element for the invasive use in a patient's body

Cited By (80)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2520236A1 (en) * 1979-08-20 1983-07-29 Groshong Leroy METHOD AND APPARATUS FOR THE IMPLEMENTATION OF INTRAVENOUS THERAPY COMPRISING HYPERIMENSION
US4685446A (en) * 1984-02-21 1987-08-11 Choy Daniel S J Method for using a ventricular assist device
US4771765A (en) * 1984-02-21 1988-09-20 Choy Daniel S J Heart assist device and method of use
US4902273A (en) * 1984-02-21 1990-02-20 Choy Daniel S J Heart assist device
US5092879A (en) * 1988-02-17 1992-03-03 Jarvik Robert K Intraventricular artificial hearts and methods of their surgical implantation and use
US5290263A (en) * 1989-02-02 1994-03-01 Regents Of The University Of Minnesota Bidirectional check valve catheter
US4985014A (en) * 1989-07-11 1991-01-15 Orejola Wilmo C Ventricular venting loop
US6083260A (en) * 1997-07-11 2000-07-04 A-Med Systems, Inc. Reverse flow transport pump and organ stabilization apparatus including related methods
US6395026B1 (en) 1998-05-15 2002-05-28 A-Med Systems, Inc. Apparatus and methods for beating heart bypass surgery
US9964115B2 (en) 2008-12-05 2018-05-08 Ecp Entwicklungsgesellschaft Mbh Fluid pump with a rotor
US11852155B2 (en) 2008-12-05 2023-12-26 Ecp Entwicklungsgesellschaft Mbh Fluid pump with a rotor
US10495101B2 (en) 2008-12-05 2019-12-03 Ecp Entwicklungsgesellschaft Mbh Fluid pump with a rotor
US9404505B2 (en) 2008-12-05 2016-08-02 Ecp Entwicklungsgesellschaft Mbh Fluid pump with a rotor
US8998792B2 (en) 2008-12-05 2015-04-07 Ecp Entwicklungsgesellschaft Mbh Fluid pump with a rotor
US10662967B2 (en) 2008-12-05 2020-05-26 Ecp Entwicklungsgesellschaft Mbh Fluid pump with a rotor
US9089670B2 (en) 2009-02-04 2015-07-28 Ecp Entwicklungsgesellschaft Mbh Catheter device having a catheter and an actuation device
US9649475B2 (en) 2009-02-04 2017-05-16 Ecp Entwicklungsgesellschaft Mbh Catheter device having a catheter and an actuation device
US9981110B2 (en) 2009-02-04 2018-05-29 Ecp Entwicklungsgesellschaft Mbh Catheter device having a catheter and an actuation device
US10406323B2 (en) 2009-02-04 2019-09-10 Ecp Entwicklungsgesellschaft Mbh Catheter device having a catheter and an actuation device
US11229774B2 (en) 2009-02-04 2022-01-25 Ecp Entwicklungsgesellschaft Mbh Catheter device having a catheter and an actuation device
US8979493B2 (en) 2009-03-18 2015-03-17 ECP Entwicklungsgesellscaft mbH Fluid pump
US11577066B2 (en) 2009-05-05 2023-02-14 Ecp Entwicklundgesellschaft Mbh Fluid pump changeable in diameter, in particular for medical application
US8944748B2 (en) 2009-05-05 2015-02-03 Ecp Entwicklungsgesellschaft Mbh Fluid pump changeable in diameter, in particular for medical application
US9512839B2 (en) 2009-05-05 2016-12-06 Ecp Entwicklungsgesellschaft Mbh Fluid pump changeable in diameter, in particular for medical application
US10265448B2 (en) 2009-05-05 2019-04-23 Ecp Entwicklungsgesellschaft Mbh Fluid pump changeable in diameter, in particular for medical application
US11786718B2 (en) 2009-05-05 2023-10-17 Ecp Entwicklungsgesellschaft Mbh Fluid pump changeable in diameter, in particular for medical application
US11278711B2 (en) 2009-05-05 2022-03-22 Ecp Entwicklungsgesellschaft Mbh Fluid pump changeable in diameter, in particular for medical application
US11268521B2 (en) 2009-06-25 2022-03-08 Ecp Entwicklungsgesellschaft Mbh Compressible and expandable blade for a fluid pump
US10330101B2 (en) 2009-06-25 2019-06-25 Ecp Entwicklungsgesellschaft Mbh Compressible and expandable blade for a fluid pump
US9067006B2 (en) 2009-06-25 2015-06-30 Ecp Entwicklungsgesellschaft Mbh Compressible and expandable blade for a fluid pump
US11116960B2 (en) 2009-08-06 2021-09-14 Ecp Entwicklungsgesellschaft Mbh Catheter device having a coupling device for a drive device
US10172985B2 (en) 2009-08-06 2019-01-08 Ecp Entwicklungsgesellschaft Mbh Catheter device having a coupling device for a drive device
US10107299B2 (en) 2009-09-22 2018-10-23 Ecp Entwicklungsgesellschaft Mbh Functional element, in particular fluid pump, having a housing and a conveying element
US9028216B2 (en) 2009-09-22 2015-05-12 Ecp Entwicklungsgesellschaft Mbh Rotor for an axial flow pump for conveying a fluid
US9416783B2 (en) 2009-09-22 2016-08-16 Ecp Entwicklungsgellschaft Mbh Compressible rotor for a fluid pump
US9603983B2 (en) 2009-10-23 2017-03-28 Ecp Entwicklungsgesellschaft Mbh Catheter pump arrangement and flexible shaft arrangement having a core
US8932141B2 (en) 2009-10-23 2015-01-13 Ecp Entwicklungsgesellschaft Mbh Flexible shaft arrangement
US10792406B2 (en) 2009-10-23 2020-10-06 Ecp Entwicklungsgesellschaft Mbh Catheter pump arrangement and flexible shaft arrangement having a core
US11434922B2 (en) 2009-12-23 2022-09-06 Ecp Entwicklungsgesellschaft Mbh Radially compressible and expandable rotor for a fluid pump
US9339596B2 (en) 2009-12-23 2016-05-17 Ecp Entwicklungsgesellschaft Mbh Radially compressible and expandable rotor for a fluid pump
US11815097B2 (en) 2009-12-23 2023-11-14 Ecp Entwicklungsgesellschaft Mbh Pump device having a detection device
US9903384B2 (en) 2009-12-23 2018-02-27 Ecp Entwicklungsgesellschaft Mbh Radially compressible and expandable rotor for a fluid pump
US11781557B2 (en) 2009-12-23 2023-10-10 Ecp Entwicklungsgesellschaft Mbh Radially compressible and expandable rotor for a fluid pump
US11773863B2 (en) 2009-12-23 2023-10-03 Ecp Entwicklungsgesellschaft Mbh Conveying blades for a compressible rotor
US9795727B2 (en) 2009-12-23 2017-10-24 Ecp Entwicklungsgesellschaft Mbh Pump device having a detection device
US11549517B2 (en) 2009-12-23 2023-01-10 Ecp Entwicklungsgesellschaft Mbh Conveying blades for a compressible rotor
US11486400B2 (en) 2009-12-23 2022-11-01 Ecp Entwicklungsgesellschaft Mbh Pump device having a detection device
US11266824B2 (en) 2009-12-23 2022-03-08 Ecp Entwicklungsgesellschaft Mbh Conveying blades for a compressible rotor
US9314558B2 (en) 2009-12-23 2016-04-19 Ecp Entwicklungsgesellschaft Mbh Conveying blades for a compressible rotor
US10557475B2 (en) 2009-12-23 2020-02-11 Ecp Entwicklungsgesellschaft Mbh Radially compressible and expandable rotor for a fluid pump
US10561772B2 (en) 2009-12-23 2020-02-18 Ecp Entwicklungsgesellschaft Mbh Pump device having a detection device
US10806838B2 (en) 2009-12-23 2020-10-20 Ecp Entwicklungsgesellschaft Mbh Conveying blades for a compressible rotor
US9358330B2 (en) 2009-12-23 2016-06-07 Ecp Entwicklungsgesellschaft Mbh Pump device having a detection device
US10316853B2 (en) 2010-01-25 2019-06-11 Ecp Entwicklungsgesellschaft Mbh Fluid pump having a radially compressible rotor
US11517739B2 (en) 2010-01-25 2022-12-06 Ecp Entwicklungsgesellschaft Mbh Fluid pump having a radially compressible rotor
US9416791B2 (en) 2010-01-25 2016-08-16 Ecp Entwicklungsgesellschaft Mbh Fluid pump having a radially compressible rotor
US9907891B2 (en) 2010-03-05 2018-03-06 Ecp Entwicklungsgesellschaft Mbh Pump or rotary cutter for operation in a fluid
US10413646B2 (en) 2010-03-05 2019-09-17 Ecp Entwicklungsgesellschaft Mbh Pump or rotary cutter for operation in a fluid
US9217442B2 (en) 2010-03-05 2015-12-22 Ecp Entwicklungsgesellschaft Mbh Pump or rotary cutter for operation in a fluid
US9759237B2 (en) 2010-05-17 2017-09-12 Ecp Entwicklungsgesellschaft Mbh Pump arrangement
US10221866B2 (en) 2010-05-17 2019-03-05 Ecp Entwicklungsgesellschaft Mbh Pump arrangement
US11168705B2 (en) 2010-05-17 2021-11-09 Ecp Entwicklungsgesellschaft Mbh Pump arrangement
US9328741B2 (en) 2010-05-17 2016-05-03 Ecp Entwicklungsgesellschaft Mbh Pump arrangement
US10898625B2 (en) 2010-06-25 2021-01-26 Ecp Entwicklungsgesellschaft Mbh System for introducing a pump
US9974893B2 (en) 2010-06-25 2018-05-22 Ecp Entwicklungsgesellschaft Mbh System for introducing a pump
US10874781B2 (en) 2010-06-25 2020-12-29 Ecp Entwicklungsgesellschaft Mbh System for introducing a pump
US11957846B2 (en) 2010-06-25 2024-04-16 Ecp Entwicklungsgesellschaft Mbh System for introducing a pump
US9771801B2 (en) 2010-07-15 2017-09-26 Ecp Entwicklungsgesellschaft Mbh Rotor for a pump, produced with a first elastic material
US9895475B2 (en) 2010-07-15 2018-02-20 Ecp Entwicklungsgesellschaft Mbh Blood pump for the invasive application within a body of a patient
US9611743B2 (en) 2010-07-15 2017-04-04 Ecp Entwicklungsgesellschaft Mbh Radially compressible and expandable rotor for a pump having an impeller blade
US10920596B2 (en) 2010-07-15 2021-02-16 Ecp Entwicklungsgesellschaft Mbh Radially compressible and expandable rotor for a pump having an impeller blade
US11844939B2 (en) 2010-07-15 2023-12-19 Ecp Entwicklungsgesellschaft Mbh Blood pump for the invasive application within a body of a patient
US11913467B2 (en) 2010-07-15 2024-02-27 Ecp Entwicklungsgesellschaft Mbh Radially compressible and expandable rotor for a pump having an impeller blade
US10589012B2 (en) 2010-07-15 2020-03-17 Ecp Entwicklungsgesellschaft Mbh Blood pump for the invasive application within a body of a patient
US9867916B2 (en) 2010-08-27 2018-01-16 Berlin Heart Gmbh Implantable blood conveying device, manipulating device and coupling device
US11083885B2 (en) 2010-08-27 2021-08-10 Berlin Heart Gmbh Implantable blood conveying device, manipulating device and coupling device
US10391278B2 (en) 2011-03-10 2019-08-27 Ecp Entwicklungsgesellschaft Mbh Push device for the axial insertion of an elongate, flexible body
US11235125B2 (en) 2011-03-10 2022-02-01 Ecp Entwicklungsgesellschaft Mbh Push device for the axial insertion of an elongate, flexible body
US11666746B2 (en) 2011-09-05 2023-06-06 Ecp Entwicklungsgesellschaft Mbh Medical product comprising a functional element for the invasive use in a patient's body
US8926492B2 (en) 2011-10-11 2015-01-06 Ecp Entwicklungsgesellschaft Mbh Housing for a functional element

Also Published As

Publication number Publication date
GB1370546A (en) 1974-10-16
CA1008330A (en) 1977-04-12
SU400331A1 (en) 1973-10-01
FR2144806B1 (en) 1976-05-14
FR2144806A1 (en) 1973-02-16
IT968352B (en) 1974-03-20
DE2233293B2 (en) 1976-02-12

Similar Documents

Publication Publication Date Title
DE60307599T2 (en) MULTILUMEN CATHETER FOR MINIMIZING LINERIES
DE19535781C2 (en) Device for active flow support of body fluids
DE202009018145U1 (en) Catheter pump for the support of the circulation
DE19905937C1 (en) Mobile heart-lung machine; contains blood regeneration equipment together with control system
DE112011100238B4 (en) Arrangement with a blood pump and a gas exchanger for extracorporeal membrane oxygenation
DE10217635B4 (en) System for supporting the left ventricle
EP0902690B1 (en) Balloon catheter
DE19613565C1 (en) Intravasal blood pump with drive motor
DE19613564C1 (en) Intravascular blood pump
DE60031903T2 (en) Venous filter for assisted venous return
EP3010562B1 (en) Cardiac support system
DE102009047845A1 (en) Ventricular Assist Device
DE202010016802U1 (en) catheter pump
DE102005039446A1 (en) Device for accumulating and depleting substances in a liquid
DE1566587A1 (en) Device to remove excessive pressure in the brain
WO2008113785A2 (en) Device for supporting the heart and circulatory system
DE3413860A1 (en) MEDICAL LIQUID SAMPLING DEVICE
DE10016422A1 (en) Paracardial blood pump
DE2340755C3 (en)
DE19947907A1 (en) Catheter for the combined examination of the left ventricle and the right and left coronary arteries
DE2734248A1 (en) PORTABLE ARTIFICIAL KIDNEY
US8795219B1 (en) System and method for removing blood containing contrast dye
EP3120880A1 (en) Implantable pump system and method for inserting a pump system at a location
DE2340755B2 (en) Blood pump
DE102018103364A1 (en) Pump catheter for targeted pulsatile conduction of blood

Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
E77 Valid patent as to the heymanns-index 1977
EHJ Ceased/non-payment of the annual fee