DE10108809B4 - Device for connecting a cannula for cardiac pumps to the heart - Google Patents
Device for connecting a cannula for cardiac pumps to the heart Download PDFInfo
- Publication number
- DE10108809B4 DE10108809B4 DE10108809A DE10108809A DE10108809B4 DE 10108809 B4 DE10108809 B4 DE 10108809B4 DE 10108809 A DE10108809 A DE 10108809A DE 10108809 A DE10108809 A DE 10108809A DE 10108809 B4 DE10108809 B4 DE 10108809B4
- Authority
- DE
- Germany
- Prior art keywords
- cannula
- heart
- hollow organ
- seam
- sewing ring
- 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 - Fee Related
Links
Images
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
Landscapes
- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Cardiology (AREA)
- Biomedical Technology (AREA)
- Veterinary Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Mechanical Engineering (AREA)
- Anesthesiology (AREA)
- Hematology (AREA)
- Transplantation (AREA)
- Vascular Medicine (AREA)
- Oral & Maxillofacial Surgery (AREA)
- External Artificial Organs (AREA)
- Prostheses (AREA)
Abstract
Vorrichtung zum Verbinden einer Kanüle (2) mit einem Hohlorgan (3), insbesondere mit einem Herz, dadurch gekennzeichnet, dass eine Kanülenspitze (3) der Kanüle eine Öffnung aufweist, welche zur Verhinderung einer vollständigen Okklusion sowie Beibehaltung eines Blutflusses aus dem Hohlorgan in die Kanüle an ihrem oberen Rand wellenförmig geformt und mit Aussparungen versehen ist.Device for connecting a cannula (2) to a hollow organ (3), in particular a heart, characterized in that a cannula tip (3) of the cannula has an opening which prevents complete occlusion and maintenance of blood flow from the hollow organ into the Cannula is wave-shaped at its upper edge and has recesses.
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 cardiac 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
Der obere Rand der Kanülenspitze
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, the recesses prevent complete occlusion of the opening, so that blood can continue to flow from the ventricle into the inlet cannula.
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 ein einem Bereich von +/–5° veränderlich.The inlet cannula is made of silicone and is therefore flexibly reinforced. It can accommodate rotational forces in its straight section, and the predetermined angle of the elbow is variable over a range of +/- 5 °.
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
Because the apex of the heart makes both lateral and rotational movements during the cardiac cycle (due to the helical arrangement of cardiac muscle fibers), the flexible cannula can
Der Chirurg hat aufgrund des flexiblen Winkelstückes die Möglichkeit, die Position der Pumpe an die anatomischen Besonderheiten anzupassen.Due to the flexible elbow, the surgeon has the opportunity to adapt the position of the pump to the anatomical features.
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
Der Nahtring
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 a lip at the inner radius, so that the inner diameter of the sewing ring in the height of the lip is slightly smaller than the outer diameter of the inlet cannula tip.
Dies bietet folgenden Vorteil: Ist der Nahtring
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Nahtringsuture ring
- 22
- Kanülecannula
- 33
- Hohlorgan, z. B. HerzHollow organ, z. Heart
- 44
- Mittelschichtmiddle class
- 55
- Außenschichtouter layer
- 66
- Außenschichtouter layer
- 77
- Gewebetissue
- 88th
- Lippelip
- 99
- Nahtseam
- 1010
- PumpenanschlußbereichPump connection area
- 1111
- HerzverbindungsbereichHeart connection area
- 1212
- Winkelstückelbow
- 1313
- Kanülenspitzecannula tip
- 1414
- NahtflanschNahtflansch
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 DE10108809A1 (en) | 2002-09-05 |
DE10108809B4 true 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) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1825873A3 (en) * | 2006-02-23 | 2007-09-26 | Levitronix LLC | A pump-inflow-cannula, a pump-outflow-cannula and a blood managing system |
US8152845B2 (en) | 2009-12-30 | 2012-04-10 | Thoratec Corporation | Blood pump system with mounting cuff |
AU2012223166B2 (en) | 2011-03-02 | 2016-10-27 | Tc1 Llc | Ventricular cuff |
US9981076B2 (en) | 2012-03-02 | 2018-05-29 | Tc1 Llc | Ventricular cuff |
US9199019B2 (en) | 2012-08-31 | 2015-12-01 | Thoratec Corporation | Ventricular cuff |
US10894116B2 (en) | 2016-08-22 | 2021-01-19 | Tc1 Llc | Heart pump cuff |
WO2018156897A1 (en) | 2017-02-24 | 2018-08-30 | Tc1 Llc | Minimally invasive methods and devices for ventricular assist device implantation |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3523520A1 (en) * | 1985-07-01 | 1987-01-08 | Stoeckert Instr Gmbh | VESSEL CATHETER |
DE68906403T2 (en) * | 1988-01-14 | 1993-11-04 | Univ Paris Curie | FULLY IMPLANTABLE HEART PROSTHESIS WITH FLOATING MEMBRANES, WITH QUICK CONNECTORS AND WITH INTERCHANGEABLE ELEMENTS. |
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 |
-
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 (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3523520A1 (en) * | 1985-07-01 | 1987-01-08 | Stoeckert Instr Gmbh | VESSEL CATHETER |
DE68906403T2 (en) * | 1988-01-14 | 1993-11-04 | Univ Paris Curie | FULLY IMPLANTABLE HEART PROSTHESIS WITH FLOATING MEMBRANES, WITH QUICK CONNECTORS AND WITH INTERCHANGEABLE ELEMENTS. |
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 |
Also Published As
Publication number | Publication date |
---|---|
DE20202884U1 (en) | 2002-07-11 |
DE10108809A1 (en) | 2002-09-05 |
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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 |