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Inflow cannula and blood assist system

A technology of intubation and blood pump, applied in the direction of circulatory assistance devices, catheters, balloon catheters, etc., which can solve the problems of patients' unhealthy

Active Publication Date: 2018-07-31
CIRCULITE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, some patients with severe symptoms are not healthy enough for surgery to receive a circulatory assistance system

Method used

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  • Inflow cannula and blood assist system
  • Inflow cannula and blood assist system
  • Inflow cannula and blood assist system

Examples

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Embodiment Construction

[0022] Referring now to the drawings, and specifically to figure 1 , shows a system 10 for pumping blood from a patient's heart 12 in accordance with various embodiments of the present invention. System 10 includes blood pump 14 having inlet 16 and outlet 18 , outflow cannula 20 and flexible cannula assembly 22 . Outflow cannula 20 is in fluid communication with blood pump 14 and the patient's circulatory system. Specifically, the outflow cannula 20 is in fluid communication with the outlet 18 of the blood pump 14 and the patient's right subclavian artery 24 . Operation of the blood pump 14 causes blood to be drawn from the left atrium 26 , through the flexible cannula assembly 22 , out the outflow cannula 20 (as indicated by arrow 21 ), and into the right subclavian artery 24 .

[0023] figure 1 The flexible cannula assembly 22 is shown in the implanted state, wherein the flexible cannula assembly 22 is guided into the left atrium 26, behind the right atrium 28, and betwee...

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Abstract

A system (10) and method of drawing blood from the heart (12) of a patient. The system (10) includes a blood pump (14), an outflow cannula (20), and a flexible cannula assembly (22). The flexible cannula assembly (22) includes a cannula body (34), a tip (36), and first and second anchors (38, 40). The cannula body (34) includes a proximal end (54) coupled to the blood pump (14) and a distal end (56) including a first locking element (58) coupled to the tip (36). The first anchor (38) has a first plurality of arms (68) and is coupled to the tip (36) and adapted to engage the internal surface (50) of the heart wall (46). The second anchor (40) includes a second plurality of arms (70) and a second locking element (72) and is slidably positioned on the outer wall (64) of the cannula body (34)and adapted to engage the first locking element (58) of the distal end (56) of the cannula body (34) to couple the second anchor (40) to the external surface (48) of the heart wall (46).

Description

technical field [0001] The present invention generally relates to systems and methods for assisting the pumping of blood from the heart of a patient and improving blood circulation. Background technique [0002] The human heart is the muscle responsible for pumping blood throughout a network of blood vessels. Veins are blood vessels that carry blood to the heart, while arteries carry blood away from the heart. The human heart consists of two atrial chambers and two ventricular chambers. The atrial cavity receives blood from the body, while the ventricular cavity, which includes larger muscular walls, pumps blood from the heart. The diaphragm separates the left and right surfaces of the heart. The movement of blood is as follows: Blood enters the right atrium from the superior or inferior vena cava and moves into the right ventricle. Blood is pumped from the right ventricle to the lungs through the pulmonary artery to oxygenate the blood. Once the blood has been oxygenat...

Claims

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Application Information

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IPC IPC(8): A61M1/10
CPCA61M60/857A61B2017/3425A61M60/178A61M60/20A61M60/861A61M60/148A61M25/04A61M25/09A61M25/10
Inventor R·C·法南
Owner CIRCULITE
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