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Lockable rivet-free biological atrial shunt device

A shunt device and atrium technology, applied in the field of medical devices, can solve problems such as uneven atrial septal tissue, poor mechanical properties of degradable atrial shunts, and affecting the stability of implanted devices, so as to reduce adverse effects and facilitate adhesion , the effect of long burden time

Pending Publication Date: 2021-09-21
SHANGHAI SHAPE MEMORY ALLOY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The mechanical properties of biodegradable atrial shunts are slightly worse than those of metals. In addition, some patients with heart failure have uneven atrial septal tissues, some need to make large defects, or the stability of implanted devices is affected by various reasons. At this time, more stable shunts are needed. meet needs

Method used

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  • Lockable rivet-free biological atrial shunt device
  • Lockable rivet-free biological atrial shunt device
  • Lockable rivet-free biological atrial shunt device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0031] The shunt embodiments all have a locking design. The locking design is the way of adding a buckle to the hole. The hole is smaller and the buckle is larger, but the buckle can be deformed. locked state. The locking process requires a conveying device and a special functional head to achieve.

[0032] 1. The delivery device of the lockable rivetless bio-atrial shunt:

[0033] The device is used to transport the atrial shunt into the human body, and the main components include: a pull ring 1, a locking switch 2, a handle 3, an inner sheath tube 4, a connecting key 5, and a mandrel 6. Wherein the pull ring 1 can be pushed and pulled to control the forward and backward of the mandrel 6, and the locking switch 2 plays a protective role and can be used for locking to avoid misoperation. The handle 3 is used to hold the delivery device for operation. The inner sheath tube 4 is used for interventional delivery, the connecting key 5 is used for connecting the functional head, a...

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Abstract

The invention relates to a lockable rivet-free biological atrial shunt device, and belongs to the technical field of medical instruments. The device comprises an upper disc surface, a waist part, a lower disc surface, a shunt hole and a locking structure, the waist part for connecting the upper disc surface and the lower disc surface is arranged between the upper disc surface and the lower disc surface, the shunt hole is formed in the waist part, the two ends of the shunt hole are respectively opened on the disc surfaces of the upper disc surface and the lower disc surface, and a through hole is formed between the openings at the two ends; and the locking structure is arranged between the lower disc surface and the upper disc surface on the outer side of the waist part. The atrial shunt device provided by the invention is made of a biodegradable material, adopts a rivet-free design, is provided with a lockable form and can be developed; the product provided by the invention can be locked, and a shunt can be firmly fixed at a defect position, so that the stability of the shunt after implantation is greatly improved; the device can be used for treating heart failure.

Description

technical field [0001] The invention relates to a lockable rivetless biological atrium shunt device, which belongs to the technical field of medical devices. Background technique [0002] Heart failure is the final result of various cardiovascular events and the cumulative effect of various cardiac abnormalities, ultimately leading to a decline in the pumping function of the heart. In patients with heart failure, heart failure with preserved ejection fraction (HIPEF, LVEP) is a common type of heart failure, accounting for about 50% of heart failure cases, and is generally characterized by elevated left atrial pressure (LAP), which causes pulmonary hypertension (especially during exercise), which can lead to congestion of the lungs and difficulty breathing. In addition, heart failure with reduced ejection fraction (HFrEF) can also exhibit elevated LAP. Existing medications for heart failure do not stop the progression of heart failure. According to medical practice and com...

Claims

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Application Information

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IPC IPC(8): A61F2/24
CPCA61F2/2487A61F2210/0004A61F2250/0098
Inventor 王卿馨王云兵胡金鹏赵一甲郭高阳许贤春陈娟潘湘斌
Owner SHANGHAI SHAPE MEMORY ALLOY
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