Method of manufacturing a blood pump
A blood pump and blood vessel technology, applied in the field of intravascular blood pumps, can solve the problems of electric motor heating, etc., and achieve the effects of easy manipulation, avoiding leakage current or electric corrosion, and small manufacturing tolerances
Pending Publication Date: 2020-11-03
ABIOMED EURO
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
The resulting electric motor has a relatively thick plastic housing that functions as desired as corrosion protection but adds no additional value to the function of the blood pump
Conversely, the plastic housing increases the diameter of the pumping device and is insulated, which can lead to undesired heating of the electric motor during operation of the blood pump
Method used
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Embodiment Construction
[0041] figure 1 An intravascular blood pump P inserted into the heart H of a patient is illustrated. More specifically, the blood pump P comprises a pumping device 1 attached to a catheter 5 by means of which the pumping device 1 is inserted into the left ventricle LV of the patient's heart H to pump blood from the left ventricle LV into the main ventricle LV. Arterial AO. The illustrated application is only an exemplary application, and the blood pump P of the present invention is not limited to this application. For example, a reverse application to the right ventricle RV can be envisioned. Blood pump P is inserted percutaneously, for example through the path of the thigh or the path of the armpit, and is probing into the heart H anteriorly through the aorta AO. Blood pump P is positioned such that blood flow outlet 2 is positioned outside the patient's heart H, in the aorta AO, and blood flow inlet 3, in flow communication with flow cannula 4, is positioned within the le...
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Abstract
An intravascular blood pump (P) comprises a pumping device (1) including an impeller (6) and an electric motor for driving the impeller (6). A rotor (7) of the electric motor is rotatable about an axis of rotation and coupled to the impeller (6) so as to be able to cause rotation of the impeller (6). An outer sleeve (13) forms a casing of the pumping device (1), wherein stator components are fixedinside the outer sleeve (13) by means of a casting compound (18). In a method of manufacturing the blood pump (P) the stator components are placed on a molding base (30), including the outer sleeve (13) to thereby form an interspace (19) between the molding base (30) and the outer sleeve (13) in which the stator components are disposed. The casting compound (18) is then injected into the interspace (19) via the molding base to fix the stator components inside the outer sleeve (13). The outer sleeve (13) preferably comprises a magnetically conductive material to form a yoke of the electric motor.
Description
technical field [0001] The present invention relates to intravascular blood pumps for percutaneous insertion into a blood vessel of a patient, in particular protruded into the heart of a patient, and in particular to a method of manufacturing an intravascular blood pump. Background technique [0002] Endovascular blood pumps designed to be inserted percutaneously into a patient's blood vessel, such as an artery or vein of the thigh or armpit, can be advanced into the patient's heart to function as a left ventricular assist device or a right ventricular assist device. Therefore, the blood pump may also be referred to as an intracardiac blood pump. An intravascular blood pump typically includes a catheter and a pumping device attached to the distal end of the catheter. Conduits can accommodate supply lines such as electrical and purge lines. Throughout this disclosure, the term "distal" will refer to a direction away from the user and towards the heart, while the term "proxi...
Claims
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IPC IPC(8): A61M1/10A61M1/12
CPCA61M60/174A61M60/857A61M60/216A61M60/416A61M60/13A61M60/825A61M60/135A61M2205/0211A61M2207/00A61M60/422B29L2031/7534A61M60/205A61M2205/273A61M60/148B29C65/70
Inventor F·基尔霍夫J·彭纳斯T·西斯W·卡雷尔W·克尔霍夫斯
Owner ABIOMED EURO