DE10108809A1 - Device for joining heart pump to heart, comprising tube with irregularly shaped tip and suture enveloping and reinforcing ring of particular design - Google Patents

Device for joining heart pump to heart, comprising tube with irregularly shaped tip and suture enveloping and reinforcing ring of particular design

Info

Publication number
DE10108809A1
DE10108809A1 DE10108809A DE10108809A DE10108809A1 DE 10108809 A1 DE10108809 A1 DE 10108809A1 DE 10108809 A DE10108809 A DE 10108809A DE 10108809 A DE10108809 A DE 10108809A DE 10108809 A1 DE10108809 A1 DE 10108809A1
Authority
DE
Germany
Prior art keywords
heart
cannula
tube
suture
irregularly shaped
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
DE10108809A
Other languages
German (de)
Other versions
DE10108809B4 (en
Inventor
Peter Goettel
Ali Kilic
Johannes Mueller
Peter Nuesser
Dietmar Ries
Klaus Wunderlich
Hans-Erhard Peters
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.)
Berlin Heart GmbH
Original Assignee
Berlin Heart GmbH
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 Berlin Heart GmbH filed Critical Berlin Heart GmbH
Priority to DE10108809A priority Critical patent/DE10108809B4/en
Priority to DE20202884U priority patent/DE20202884U1/en
Publication of DE10108809A1 publication Critical patent/DE10108809A1/en
Application granted granted Critical
Publication of DE10108809B4 publication Critical patent/DE10108809B4/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/24Heart valves ; Vascular valves, e.g. venous valves; Heart implants, e.g. passive devices for improving the function of the native valve or the heart muscle; Transmyocardial revascularisation [TMR] devices; Valves implantable in the body
    • A61F2/2409Support rings therefor, e.g. for connecting valves to tissue
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M60/00Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/10Location thereof with respect to the patient's body
    • A61M60/122Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body
    • A61M60/165Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable in, on, or around the heart
    • A61M60/178Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable in, on, or around the heart drawing blood from a ventricle and returning the blood to the arterial system via a cannula external to the ventricle, e.g. left or right ventricular assist devices
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M60/00Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
    • A61M60/80Constructional details other than related to driving
    • A61M60/855Constructional details other than related to driving of implantable pumps or pumping devices
    • A61M60/861Connections or anchorings for connecting or anchoring pumps or pumping devices to parts of the patient's body
    • A61M60/863Apex rings

Abstract

The heart pump (15) is permanently attached to a tube (2) guided in an angle (12) towards the heart and provided with a circular suture flange (14) and an irregularly shaped tip (13). A suture ring (1) assembled of a soft inner silicon layer (4) and two reinforced outer silicon layers (5, 6) and provided with an upper and a lower Dacron (RTM) cover (7) is stitched to the heart, the tube (2) is inserted and sealed by the ring (1). The flexible quality of the tube (2) and its irregularly shaped tip (13) compensate the forces created by the specific motion of the apex of the heart.

Description

Die Erfindung betrifft eine Vorrichtung zum Verbinden einer Kanüle für Herzpumpen mit dem Herz.The invention relates to a device for connecting a cannula for heart pumps with the heart.

Da von einer Herzpumpe ein beständiger Sog ausgeht, ist nicht auszuschließen, daß im Falle einer zu geringen Blutfüllung der Herzkammer Wandstrukturen der Herzwand oder Herzscheidewand die Einlaßöffnung der Kanüle 2 abdecken.Since a cardiac pump produces a constant suction, it cannot be ruled out that in the event of insufficient blood filling of the heart chamber, wall structures of the heart wall or cardiac septum cover the inlet opening of the cannula 2 .

Der obere Rand der Kanülenspitze 13, die in die linke Herzkammer hineinragt, ist wellenförmig geformt und mit tiefen, halbkreisförmigen Aussparungen versehen.The upper edge of the cannula tip 13 , which projects into the left ventricle, is wave-shaped and provided with deep, semicircular recesses.

Durch die Aussparungen wird in diesem Falle eine vollständige Okklusion der Öffnung verhindert, so daß weiterhin Blut aus dem Ventrikel in die Einlaßkanüle fließen kann.In this case, through the cutouts prevents complete occlusion of the opening so that blood continues from the ventricle into the inlet cannula can flow.

Die Einlaßkanüle besteht aus Silikon und ist daher flexibel verstärkt. Sie kann in ihrem geraden Abschnitt Drehkräfte aufnehmen und der vorgegebene Winkel des Winkelstücks ist in einem Bereich von +/-5° veränderlich. The inlet cannula is made of silicone and is therefore flexibly reinforced. It can in its straight section Take up torque and the given angle of Contra-angle is in a range of +/- 5 ° mutable.  

Im Vergleich zu starren Konstruktionen (vgl. DeBakey- Axialpumpe) ergeben sich hieraus im wesentlichen zwei Vorteile:
Da die Herzspitze während des Herzzyklus' sowohl eine seitliche als auch eine Rotationsbewegung vollzieht (aufgrund der spiralförmigen Anordnung der Herzmuskelfasern), kann die flexible Kanüle 2 diese Bewegungen auffangen und verhindert so die Entstehung von Kräften, die auf die Nahtstellen am Herzmuskel einwirken. Diese Kräfte könnten zu Blutungen oder Verletzungen des Herzmuskels führen.
In comparison to rigid constructions (see DeBakey axial pump), there are two main advantages:
Since the tip of the heart performs both a lateral and a rotational movement during the cardiac cycle (due to the spiral arrangement of the heart muscle fibers), the flexible cannula 2 can absorb these movements and thus prevents the generation of forces which act on the seams on the heart muscle. These forces could result in bleeding or injury to the heart muscle.

Der Chirurg hat aufgrund des flexiblen Winkelstückes die Möglichkeit, die Position der Pumpe an die anatomischen Besonderheiten anzupassen.The surgeon has due to the flexible elbow the ability to position the pump at the adapt anatomical peculiarities.

Zur Verbindung der Einlaßkanüle mit der linken Herzkammer wird an der Herzspitze zunächst eine kreisförmige Öffnung ausgeschnitten, in die später die Kanülenspitze eingeführt wird. Zuvor wird jedoch ein Nahtring 1 um diese Öfnung herum aufgenäht.To connect the inlet cannula to the left ventricle, a circular opening is first cut out at the tip of the heart, into which the tip of the cannula is later inserted. Before that, however, a seam ring 1 is sewn around this opening.

Der Nahtring 1 hat dieselben Durchmessermaße wie ein Nahtflansch 14 an der Einlasskanüle 2. Er besteht aus einem Silikonkern, der aus einer inneren Schicht aus unverstärktem Silikon und beidseitig anliegenden Schichten von verstärktem Silikon aufgebaut ist. Sowohl auf der Ober- als auch auf der Unterseite ein Dacronvelourgewebe aufgeklebt ist, er ist also fünfschichtig aufgebaut.The suture ring 1 has the same diameter dimensions as a seam flange 14 on the inlet cannula 2 . It consists of a silicone core, which is made up of an inner layer of unreinforced silicone and double-sided layers of reinforced silicone. A Dacron velor fabric is glued to both the top and bottom, so it is built up in five layers.

Die mittlerste Schicht (Silikon) hat am inneren Radius eine Lippe, so daß der innere Durchmsser des Nahtrings in der Höhe der Lippe geringfügig kleiner ist als der Außendurchnmesser der Einlaßkanülenspitze.The middle layer (silicone) has on the inner radius a lip, so that the inner diameter of the seam ring  at the level of the lip is slightly smaller than that Outside diameter of the inlet cannula tip.

Dies bietet folgenden Vorteil: Ist der Nahtring 1 aufgebracht und befestigt, wird die Spitze 13 der Einlaßkanüle durch die Öffnung des Nahtrings 1 hindurchgeschoben. Bereits jetzt kommt durch den Kontakt der Silikonlippe 8 mit der Außenseite der Einlasskanülenspitze 13 eine Dichtigkeit zustande und es besteht gleichzeitig die Option, die Einlaßkanüle im Nahtring 1 zu verdrehen, bis die optimale Position gefunden ist. Erst dann wird der Nahtring 1 mit dem Nahtflansch 14 durch eine Naht verbunden und fixiert. This offers the following advantage: if the suture ring 1 is applied and fastened, the tip 13 of the inlet cannula is pushed through the opening of the suture ring 1 . A tightness is already brought about by the contact of the silicone lip 8 with the outside of the inlet cannula tip 13 and there is at the same time the option to twist the inlet cannula in the suture ring 1 until the optimal position is found. Only then is the seam ring 1 connected and fixed to the seam flange 14 by a seam.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11

Nahtring
suture ring

22

Kanüle
cannula

33

Hohlorgan, z. B. Herz
Hollow organ, e.g. B. heart

44

Mittelschicht
middle class

55

Außenschicht
outer layer

66

Außenschicht
outer layer

77

Gewebe
tissue

88th

Lippe
lip

99

Naht
seam

1010

Pumpenanschlußbereich
Pump connection area

1111

Herzverbindungsbereich
Heart connection area

1212

Winkelstück
elbow

1313

Kanülenspitze
cannula tip

1414

Nahtflansch
Nahtflansch

1515

-
-

1616

-
-

1717

-
-

Claims (8)

1. Vorrichtung zum Verbinden einer Kanüle für Herzpumpen mit dem Herz, dadurch gekennzeichnet, daß eine Kanülenspitze (13) der Kanüle (2) eine unregelmäßige Begrenzung aufweist.1. Device for connecting a cannula for heart pumps to the heart, characterized in that a cannula tip ( 13 ) of the cannula ( 2 ) has an irregular boundary. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Kanüle (2) mit einem am Herzen annähbaren Nahtring (1) kombiniert ist.2. Device according to claim 1, characterized in that the cannula ( 2 ) is combined with a suturing ring ( 1 ) which can be sewn to the heart. 3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Kanüle (2) einen Nahtflansch (14) aufweist.3. Apparatus according to claim 1 or 2, characterized in that the cannula ( 2 ) has a seam flange ( 14 ). 4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Nahtring (1) mit dem Nahtflansch (14) verbindbar ist.4. Device according to one of claims 1 to 3, characterized in that the seam ring ( 1 ) with the seam flange ( 14 ) can be connected. 5. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Rand der Kanülenspitze (13) wellental- und wellenbergähnlich geformt ist. 5. Device according to one of claims 1 to 4, characterized in that the edge of the cannula tip ( 13 ) is shaped like a wave trough and wave mountain. 6. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Kanüle (2) mindestens in Teilbereichen aus flexiblen formstabilen Materialien besteht.6. Device according to one of claims 1 to 5, characterized in that the cannula ( 2 ) consists at least in partial areas of flexible dimensionally stable materials. 7. Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die flexiblen und formstabilen Materialien aus Silikon ggf. mit Gewebe verstärkt bestehen.7. Device according to one of claims 1 to 6, characterized, that the flexible and dimensionally stable materials There may be silicone reinforced with fabric. 8. Vorrichtung nach einem der Ansprüch 1 bis 7, dadurch gekennzeichnet, daß der Nahtring (1) mehrschichtig aufgebaut ist.8. Device according to one of claims 1 to 7, characterized in that the seam ring ( 1 ) is constructed in several layers.
DE10108809A 2001-02-16 2001-02-16 Device for connecting a cannula for cardiac pumps to the heart Expired - Fee Related DE10108809B4 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE10108809A DE10108809B4 (en) 2001-02-16 2001-02-16 Device for connecting a cannula for cardiac pumps to the heart
DE20202884U DE20202884U1 (en) 2001-02-16 2002-02-18 Device for connecting a heart pump to the heart

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10108809A DE10108809B4 (en) 2001-02-16 2001-02-16 Device for connecting a cannula for cardiac pumps to the heart

Publications (2)

Publication Number Publication Date
DE10108809A1 true DE10108809A1 (en) 2002-09-05
DE10108809B4 DE10108809B4 (en) 2011-11-03

Family

ID=7675279

Family Applications (2)

Application Number Title Priority Date Filing Date
DE10108809A Expired - Fee Related DE10108809B4 (en) 2001-02-16 2001-02-16 Device for connecting a cannula for cardiac pumps to the heart
DE20202884U Expired - Lifetime DE20202884U1 (en) 2001-02-16 2002-02-18 Device for connecting a heart pump to the heart

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE20202884U Expired - Lifetime DE20202884U1 (en) 2001-02-16 2002-02-18 Device for connecting a heart pump to the heart

Country Status (1)

Country Link
DE (2) DE10108809B4 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1825873A2 (en) * 2006-02-23 2007-08-29 Levitronix LLC A pump-inflow-cannula, a pump-outflow-cannula and a blood managing system
US8679177B2 (en) 2009-12-30 2014-03-25 Thoratec Corporation Method of implanting a blood pump system
US9144637B2 (en) 2011-03-02 2015-09-29 Thoratec Corporation Ventricular cuff
US9199019B2 (en) 2012-08-31 2015-12-01 Thoratec Corporation Ventricular cuff
US9981076B2 (en) 2012-03-02 2018-05-29 Tc1 Llc Ventricular cuff
US10894116B2 (en) 2016-08-22 2021-01-19 Tc1 Llc Heart pump cuff
US11235137B2 (en) 2017-02-24 2022-02-01 Tc1 Llc Minimally invasive methods and devices for ventricular assist device implantation

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3523520A1 (en) * 1985-07-01 1987-01-08 Stoeckert Instr Gmbh VESSEL CATHETER
DE19605864A1 (en) * 1995-02-22 1996-08-29 Minnesota Mining & Mfg Aorta cannula for low flow rates used in heart operation
WO2000045875A1 (en) * 1999-02-04 2000-08-10 My-Tech, Inc. Piston-action intra-aortic coronary assist device
US6123725A (en) * 1997-07-11 2000-09-26 A-Med Systems, Inc. Single port cardiac support apparatus

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2625903B1 (en) * 1988-01-14 1997-06-13 Univ Paris Curie TOTALLY IMPLANTABLE HEART PROSTHESIS WITH FLOATING MEMBRANES, QUICK CONNECTOR AND REMOVABLE SENSITIVE ELEMENTS

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3523520A1 (en) * 1985-07-01 1987-01-08 Stoeckert Instr Gmbh VESSEL CATHETER
DE19605864A1 (en) * 1995-02-22 1996-08-29 Minnesota Mining & Mfg Aorta cannula for low flow rates used in heart operation
US6123725A (en) * 1997-07-11 2000-09-26 A-Med Systems, Inc. Single port cardiac support apparatus
WO2000045875A1 (en) * 1999-02-04 2000-08-10 My-Tech, Inc. Piston-action intra-aortic coronary assist device

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1825873A2 (en) * 2006-02-23 2007-08-29 Levitronix LLC A pump-inflow-cannula, a pump-outflow-cannula and a blood managing system
EP1825873A3 (en) * 2006-02-23 2007-09-26 Levitronix LLC A pump-inflow-cannula, a pump-outflow-cannula and a blood managing system
EP1990066A2 (en) * 2006-02-23 2008-11-12 Levitronix LLC A pump-outflow-cannula and a blood managing system
EP1990066A3 (en) * 2006-02-23 2010-12-15 Levitronix LLC A pump-outflow-cannula and a blood managing system
US8118723B2 (en) 2006-02-23 2012-02-21 Thoratec Corporation Pump-inflow-cannula, a pump-outflow-cannula and a blood managing system
US9878087B2 (en) 2006-02-23 2018-01-30 Tc1 Llc Pump-inflow-cannula, a pump-outflow-cannula and a blood managing system
US8679177B2 (en) 2009-12-30 2014-03-25 Thoratec Corporation Method of implanting a blood pump system
US9750858B2 (en) 2011-03-02 2017-09-05 Tc1 Llc Ventricular cuff
US9144637B2 (en) 2011-03-02 2015-09-29 Thoratec Corporation Ventricular cuff
US10111993B2 (en) 2011-03-02 2018-10-30 Tc1 Llc Ventricular cuff
US10525177B2 (en) 2011-03-02 2020-01-07 Tc1 Llc Ventricular cuff
US11185683B2 (en) 2011-03-02 2021-11-30 Tc1 Llc Ventricular cuff
US9981076B2 (en) 2012-03-02 2018-05-29 Tc1 Llc Ventricular cuff
US11369785B2 (en) 2012-03-02 2022-06-28 Tc1 Llc Ventricular cuff
US9199019B2 (en) 2012-08-31 2015-12-01 Thoratec Corporation Ventricular cuff
US9981077B2 (en) 2012-08-31 2018-05-29 Tc1 Llc Ventricular cuff
US10894116B2 (en) 2016-08-22 2021-01-19 Tc1 Llc Heart pump cuff
US11583671B2 (en) 2016-08-22 2023-02-21 Tc1 Llc Heart pump cuff
US11235137B2 (en) 2017-02-24 2022-02-01 Tc1 Llc Minimally invasive methods and devices for ventricular assist device implantation

Also Published As

Publication number Publication date
DE20202884U1 (en) 2002-07-11
DE10108809B4 (en) 2011-11-03

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Legal Events

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OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8110 Request for examination paragraph 44
8127 New person/name/address of the applicant

Owner name: BERLIN HEART GMBH, 12247 BERLIN, DE

R018 Grant decision by examination section/examining division
R020 Patent grant now final

Effective date: 20120204

R119 Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee