Occluder intervention conveying device

Abstract

The invention discloses an occluder intervention conveying device, which comprises an outer sheath, an outer sheath inner core, an inner sheath and a hemostasis valve, wherein the outer sheath comprises an outer sheath head end, an outer sheath body and a tail end opening; the outer sheath head end is provided with a side opening; an inner structure of the part over against the side opening is a turning inclined surface; the inner sheath is inserted in the outer sheath body and penetrates through the side opening to be turned; the hemostasis valve is used for being connected with the tail endopening of the outer sheath in a buckling manner; and the outer sheath inner core is used for being placed in the outer sheath body as a support when the outer sheath is punctured. According to the occluder intervention conveying device disclosed by the invention, the occluder conveying operation can be realized by ultrasonic guidance, the operation process has no radioactive wound and drug injury on staffs without radiography, the outer sheath with a turn angle leads to the inner sheath to make a turn in the heart, the punctured part does not need to be oppressed and braked to stop bleeding,the post-operative patient can walk immediately, the post-operative recovery speed is quick and the operation pathway is short; in addition, the occluding steps are simplified, the occluding time is saved, the occluding firmness and stability can be guaranteed, the radioactive radiography equipment is not needed and the medical cost is low.

Description

technical field [0001] The invention relates to the field of medical instruments and appliances, in particular to an interventional delivery device for an occluder. Background technique [0002] Atrial septal defect is the most common congenital heart disease. In addition to thoracotomy, minimally invasive surgical methods are emerging. The traditional interventional occluder treatment method has been maturely used in clinical practice. [0003] At present, the traditional Amplatzer atrial septal occluder is mainly used in the interventional catheterization laboratory. The main step is to puncture from the femoral vein in the groin under local anesthesia, and then insert a non-invasive implant into the femoral vein under the tube X-ray radiography. Developed metal guide wire, push the guide wire into the right atrium, inject contrast agent into the blood vessel, use different body positions to contrast, look for atrial defect in the atrium, and then try to pass the guide wir...

AI Technical Summary

Problems solved by technology

[0005] 1. Intervention equipment is required, patients and medical staff are exposed to radiation, and there is radiation damage,

[0006] 2. It is necessary to inject contrast medium into the patient. Patients with renal impairment, renal insufficiency, and iodine allergy cannot perform the operation. Renal function needs to be tested for surgery, and intravenous infusion is required after surgery to eliminate contrast medium.

[0007] 3. Since the guide wire needs to search for the atrial septum in the atrium, the puncture of the guide wire and catheter may cause injury to the inferior vena cava and the possibility of puncture injury to the heart

[0008] 4. In some patients, the inferior vena cava valve is developed, and the redundant Eustachian valve is easily entangled with the puncture sheath, resulting in difficulty in catheter withdrawal, tissue tearing, residual shunt, conduction block, etc.

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