Apparatus for delivering artificial heart stent valve

An artificial heart and valve technology, applied in the direction of catheters, guide wires, etc., can solve problems such as difficulty, impact, and inability to adapt to the increase in the diameter of artificial valves

Active Publication Date: 2007-05-16
BEIJING BALANCE MEDICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The disadvantages and problems of the balloon-expandable artificial valve are: its diameter is determined by the diameter of the balloon. If the diameter of the artificial valve is not selected at the beginning, or after some physiological changes, such as natural growth, pathological vascular expansion, etc., The caliber of the natural valve may increase, but the caliber of the artificial valve cannot be increased adaptively, and the artificial valve may loosen or slip off, so only secondary balloon re-expansion can be performed
[0014] The disadvantages and problems of the self-expanding artificial heart valve are: the friction between the self-expanding artificial heart valve and the sheath is large, which affects the accurate release of the artificial valve
[0017] 1. The existing interventional artificial stent valve delivery device and the stent valve under radial compression are relatively hard and have poor flexibility. It is not easy to pass through the aortic arch and cannot be aligned with the natural aortic valve orifice.
[0018] 2. Even with the help of X-ray fluoroscopy, the axial upstream and downstream positioning of the interventional artificial stent valve and its delivery device becomes uncertain due to the inaccurate judgmen...

Method used

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  • Apparatus for delivering artificial heart stent valve
  • Apparatus for delivering artificial heart stent valve
  • Apparatus for delivering artificial heart stent valve

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Embodiment Construction

[0098] Referring to Fig. 1 to Fig. 7, the delivery device 2 of the artificial heart stent valve of the present invention comprises: inner tube 51, guide wire tube 61, catheter head 65, stent backguy 70, locking wire 75, near-end controller 80, middle tube 88. The outer protection mechanism 90, 92, 96 may also include a B-ultrasound probe 87 and a side guide wire tube 99.

[0099] Referring to Fig. 1a, with reference to Fig. 2a, Fig. 2b, Fig. 2c, Fig. 2d, the inner tube 51 in the delivery device 2 of the artificial heart stent valve of the present invention is a long tubular structure. The cross section can be circular. The inner tube 51 can be made of polymer material with good elasticity and high strength. The transparent or translucent color of the inner tube 51 is conducive to preoperative inspection and air bubble removal. The inner tube 51 has a length of 80-150 cm, its proximal end 511 is outside the body, and its distal end 512 reaches the position of the natural valv...

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Abstract

The invention relates to a transmitter of artificial heart support valve, which comprises duct head, tube, near controller, middle tube, guide tube, external protector, at least one locking wire, and at least one support drawing line. The external protector can be external pin tube, or breakable external protector or the line compressor which can be twisted. The invention can rotationally position the valve, and effectively fix the expanded valve, reduce the abrasion, and avoid fall off.

Description

technical field [0001] The invention relates to a delivery device for a human tissue substitute, in particular to a delivery device for an artificial heart stent valve. Background technique [0002] The heart is the most important organ of the human body. The heart is divided into two parts, the left and the right, and each part includes the atrium and the ventricle. The left and right atria and right and left ventricles are separated by the atrial and ventricular septum, respectively. There are four heart valves in the heart, namely the tricuspid valve, pulmonary valve, mitral valve and aortic valve. In the human blood circulation mechanism, the four heart valves play a vital role. The hypoxic blood from the systemic circulation mechanism enters the right atrium through the vena cava, and then enters the right ventricle through the tricuspid valve. The contraction of the right ventricle pushes the blood into the pulmonary circulation mechanism through the pulmonary valve,...

Claims

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Application Information

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IPC IPC(8): A61M25/01A61M25/08A61M25/09
Inventor 温宁
Owner BEIJING BALANCE MEDICAL
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