Transapical mitral valve stitching instrument

Abstract

The invention discloses a transapical mitral valve stitching instrument. The instrument comprises an outer sleeve, an inner sleeve and an inner sheath which are sequentially nested from outside to inside, the inner sheath comprises a sheath body and a pull wire; elastic valve abutting pieces are arranged on the two sides of the bottom of the sheath body. The bottom end of the sheath body extends downwards to form a pull wire fixing rod; inner sleeve comprises an inner tube, elastic valve supporting pieces are arranged on the two sides of the bottom of the inner tube, and suture pipelines are arranged on the two sides of the inner tube wall of the outer sleeve respectively; a valve suture with a suture fixing head is laid in the suture pipeline; a pull wire fixing head is arranged at an endopening of the elastic valve abutting piece; the valve suture and the pull wire penetrate through the pull wire fixing rod; the two ends of the pull wire are arranged on the pull wire fixing head respectively; and the elastic valve abutting piece and the elastic valve supporting piece are clamped with each other after the inner sheath and the inner sleeve extend out of the lower end of the outersleeve. The instrument is easier to control, small in transapical trauma, fast in postoperative recovery and free of antithrombotic treatment after operation, and avoids thrombus formation and bleeding risks related to the instrument.

Description

Technical field [0001] The invention belongs to the technical field of medical equipment, and specifically relates to a transapical mitral valve suturing device. Background technique [0002] Mitral valve regurgitation is the heart valve disease with the highest prevalence. If patients with symptomatic moderate to severe mitral valve regurgitation and above are not treated with surgery, the annual mortality rate is about 5%, and patients with cardiac insufficiency are 5 years old. The mortality rate is 60%. Therefore, European and American guidelines for the management of valvular heart disease have long recommended symptomatic patients with moderate to severe mitral regurgitation or asymptomatic patients with severe left ventricular dysfunction (left ventricular end systolic diameter>45mm and 30%<LVEF<60%) All patients should consider surgical intervention. The in-hospital mortality rate of surgical mitral valve surgery ranges from 1%-2% (young low-risk patients under...

AI Technical Summary

Problems solved by technology

However, the above-mentioned products that have been used clinically or undergone clinical trials all left relatively large implants after surgery, such as clips, artificial chords, etc. The leftovers of such implants make it necessary to fully carry out after surgery. The risk of device-related thrombosis and antithrombotic bleeding is inevitable

[0004] Surgery requires a large incision in the middle of the chest, cardiac arrest, and extracorporeal circulation. The trauma is large and the surgical risk is high, so many elderly patients with poor basic conditions cannot afford it.

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