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Interventional transapical artificial heart valve delivery system

An artificial heart valve and delivery system technology, applied in the field of medical devices, can solve the problems of large trauma, long recovery period, inability to perform surgery, etc., and achieve the effect of small trauma, short recovery period and high success rate

Pending Publication Date: 2021-03-09
QICHEN (SHANGHAI) MEDICAL EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of surgical valve replacement operation is traumatic and takes a long time to recover, and patients who are elderly, frail, or have multiple comorbidities cannot perform surgery

Method used

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  • Interventional transapical artificial heart valve delivery system
  • Interventional transapical artificial heart valve delivery system
  • Interventional transapical artificial heart valve delivery system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] like Figure 1 to Figure 5 As shown, this embodiment provides an interventional transapical artificial heart valve delivery system for transapical implantation of the delivery valve. The artificial heart valve delivery system includes a delivery mechanism 1 and an introducer sheath mechanism 2, wherein the delivery mechanism 1 is used for Delivery, positioning and release of the valve The introducer sheath mechanism 2 is used for transapical access of the delivery valve.

[0032] Specifically, the delivery mechanism 1 includes an outer tube 1-1, an inner tube 1-2 and a handle assembly 1-3. The inner diameter of the outer tube 1-1 is 1-15 mm, and the outer diameter is 2-20 mm. The distal side of the outer tube 1-1 is provided with an inverted cone, and the transition of the inverted cone makes the distal end of the outer tube 1-1 The inner and outer diameters can be larger than the inner and outer diameters of other parts respectively. The inner diameter of the distal e...

Embodiment 2

[0051] This embodiment provides an interventional transapical artificial heart valve delivery system, which differs from Embodiment 1 in that:

[0052] The tether fixing structure of the conveying mechanism in this embodiment is a two-way valve, which is used to control the fixing and loosening of the tether by rotating the knob on the two-way valve. The structure is simple and easy to operate.

[0053] For other specific structures and implementation steps, please refer to Embodiment 1.

Embodiment 3

[0055] This embodiment provides an interventional transapical artificial heart valve delivery system, which differs from Embodiment 1 in that:

[0056] like Figure 7 As shown, the valve engagement structure at the distal end of the inner tube of the delivery mechanism in this embodiment is a boss structure, and the anchoring structure at the proximal end of the valve is arranged between the boss structure and the outer tube, which is convenient for disassembly and installation.

[0057] For other specific structures and implementation steps, please refer to Embodiment 1.

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Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to an interventional transapical artificial heart valve delivery system. The interventional transapical artificial heart valve delivery system comprises a conveying mechanism and a catheter sheath mechanism, wherein the conveying mechanism comprises an outer tube, an inner tube and a handle assembly, thehandle assembly is connected with the outer tube, one end of the inner tube is mounted on the outer tube, and the inner tube moves in the axial direction of the outer tube. An artificial heart valve is loaded on the outer tube and is clamped and matched with the inner tube. The catheter sheath mechanism is connected with the outer tube and used for conducting transapical access on the conveying mechanism so as to achieve conveying of the artificial heart valve. According to the artificial heart valve delivery system, minimally invasive interventional transcatheter artificial heart valve is adopted, the replacement operation wound is small, the postoperative recovery period is short, operation is easy and rapid, and the success rate is high.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to an interventional transapical artificial heart valve delivery system. Background technique [0002] The human heart is divided into left and right parts and has four chambers, namely left and right atrium and left and right ventricle. The inlet and outlet of the left and right ventricle have heart valves respectively, which control the flow of blood, prevent the backflow of blood, and play the role of a one-way valve. The valves on the left side of the heart, the mitral and aortic valves, experience relatively greater stress during the cardiac cycle, and valvular disease of the aortic and mitral valves is also the most common heart valve disease. [0003] An effective treatment for valve disease is valve replacement. In conventional surgical thoracotomy for valve replacement, the heart must be stopped, extracorporeal circulation established, and the heart be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/24
CPCA61F2/2427A61F2/2466A61F2250/0098
Inventor 梁玉晨
Owner QICHEN (SHANGHAI) MEDICAL EQUIP CO LTD
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