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 designInfo
- 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
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS 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
- A61F2/00—Filters 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
- A61F2/02—Prostheses implantable into the body
- A61F2/24—Heart 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
- A61F2/2409—Support rings therefor, e.g. for connecting valves to tissue
-
- 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
- A61M60/165—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable in, on, or around the heart
- A61M60/178—Implantable 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
-
- 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
- A61M60/861—Connections or anchorings for connecting or anchoring pumps or pumping devices to parts of the patient's body
- A61M60/863—Apex rings
Abstract
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.
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)
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)
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)
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)
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 |
-
2001
- 2001-02-16 DE DE10108809A patent/DE10108809B4/en not_active Expired - Fee Related
-
2002
- 2002-02-18 DE DE20202884U patent/DE20202884U1/en not_active Expired - Lifetime
Patent Citations (4)
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)
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
Date | Code | Title | Description |
---|---|---|---|
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 |