Tissue defect closing instrument

Abstract

The invention relates to the field of medical instruments, in particular to a tissue defect closing instrument. The closing instrument comprises a closing unit and a releasing unit, wherein the closing unit comprises a connecting unit and a locking unit connected with the connecting unit, the locking unit is located in the near-end area of the connecting unit, and the releasing unit is located in the near-end area of the locking unit; the connecting unit at least comprises one or more connecting pieces; the locking unit at least comprises one or more locking pieces; and the releasing unit is operated to drive the locking pieces to rotate, the connecting unit is tensioned, the locking pieces get close to each other and achieve self-locking, and then tissue defect closing is achieved. The locking unit and the releasing unit are of an integrated structure, and when the locking pieces achieve self-locking, the releasing unit is further operated, so that the releasing unit and the locking unit are broken and separated.

Description

technical field [0001] The invention belongs to the field of medical devices, in particular to a tissue defect closure device, in particular to a heart tissue defect closure device. Background technique [0002] Patent foramen ovale (Patent Foramen Oval, PFO) is the most common congenital heart abnormality in adults. In the normal population, about 1 person in 4 people has this disease. There are 1.5 million congenital heart disease patients in our country, and the annual prevalence rate of congenital heart disease is 6.78%. There are as many as 100,000-150,000 new-born children with congenital heart disease each year, of which simple patent foramen ovale accounts for about 10% of congenital heart disease. [0003] A patent foramen ovale is a common problem that can lead to potentially serious complications. In recent years, many studies have shown that there is a close relationship between patent foramen ovale and patients with stroke of unknown origin. For patients with...

AI Technical Summary

Problems solved by technology

[0011] According to an embodiment in the application of the patent foramen ovale treatment operation, the present invention can provide a tissue defect closure device for patients with structural heart disease who need interventional treatment, which can solve the problem of using a sealing device during the interventional treatment operation. Some disadvantages caused by occluder treatment of patent foramen ovale surgery, such as poor occluder anchoring effect resulting in poor occlusion stability, or the high metal content of the occluder can easily cause damage to human tissue, etc., can also be resolved After closing the foramen ovale with a traditional occluder, it is impossible to perform atrial septal puncture to carry out the second interventional operation, avoiding the situation of switching to a treatment method with a higher risk; Precisely positioned sutures to reduce postoperative complications

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