left ventricular assist pump

A technology of left ventricle and blood pump, which is applied in the field of medical devices, can solve problems such as unfavorable rehabilitation, and achieve the effects of convenient and reliable connection, improved success rate, and shortened axial size

Active Publication Date: 2011-12-28
苏州同心医疗科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In summary, implanting a blood pump into the abdominal cavity places high demands...

Method used

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Examples

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no. 1 example 1

[0064] Consistent with the first embodiment, the apical cuff 1 includes a sewing ring 11 and a flexible skirt 12 sleeved on the outer periphery of the sewing ring 11 and used to be sewn to the apex of the heart. The rear cover 21 of the blood pump body 1 is also provided with a sinking groove 22 and a sliding table 26 , and the gap between the sliding table 26 and the rear cover 21 is a guide groove 25 . The rear cover 21 is recessed with a locking piece recess 27 , and the inner ring of the locking piece recess 27 is a wedge-shaped guide portion 271 .

[0065] The difference is that if Figure 11-13 As shown, the rear cover 21 of the blood pump body 2 is provided with two locking pieces 30 that can only move radially. The locking pieces 30 include an arc-shaped segment 36. In the form of a straight line segment 37 , the straight line segment 37 projects into the guide groove 25 in a displaceable manner.

[0066] As a preferred embodiment, the axes of the straight segments 3...

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PUM

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Abstract

The invention discloses a left ventricle auxiliary blood pump, which comprises a cardiac apex sleevelet and a blood pump body fixedly connected with the cardiac apex sleevelet, wherein the cardiac apex sleevelet comprises a suture ring and a flexible skirt edge which is sleeved at the periphery of the suture ring; the suture ring comprises a suture ring inner hole and a convex edge which is convexly arranged in the radial direction; the blood pump body comprises an inlet pipe; the inlet pipe is convexly arranged on a rear cover of the blood pump body; a peripheral ring slot is formed between the convex edge and the flexible skirt edge; a sliding sheet which can only move in the radial direction relative to the blood pump body is arranged on the rear cover of the blood pump body and is stretched into the peripheral ring slot in a movable way; the convex edge is positioned between the sliding sheet and the bottom surface of a settling tank; and the cardiac apex sleevelet and the blood pump body are relatively axially fixed. In the invention, the sliding sheet is used for fixing the cardiac apex sleevelet and the blood pump, so that the cardiac apex sleevelet can be more conveniently and reliably connected with the blood pump; simultaneously, the axial dimension of the inlet pipe of the blood pump is reduced, so that the implantation of the left ventricle auxiliary blood pump in a pleural cavity is facilitated without damages to a diaphragm, and the success rate of a surgery is greatly improved.

Description

technical field [0001] The invention relates to a left ventricular auxiliary blood pump, in particular to a connection structure between the left ventricular auxiliary pump and the heart, and belongs to the technical field of medical devices. Background technique [0002] The left ventricle assists the blood pump, and its inlet end is connected to the apex of the heart, and its outlet is connected to the arterial blood vessels. The junction between the heart and arteries is located in the thoracic cavity. There is a layer of diaphragm between the thoracic cavity and the abdominal cavity. The diaphragm is also known as the respiratory muscle. When the diaphragm descends, the volume of the thoracic cavity expands to facilitate inhalation; when it relaxes, the diaphragm rises and returns to its original position, and the volume of the thoracic cavity decreases to facilitate exhalation. Another function of the diaphragm is to separate the thoracic cavity from the abdominal cav...

Claims

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Application Information

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IPC IPC(8): A61M1/12
Inventor 陈琛吴文广姚凌飞马云善王玉张亦柯杨朋
Owner 苏州同心医疗科技股份有限公司
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