Forceps for partially resecting aortic valve leaflets

Abstract

The invention discloses a pair of forceps capable of resecting part of aortic valve leaflets for transcatheter intervention. According to the technical scheme, the forceps are characterized by being divided into a forceps tail and forceps tool bits, wherein the forceps are internally provided with a control guide wire; the forceps tail is of a long catheter structure and internally provided with aguide wire cavity and a control guide wire cavity; the forceps tool bits adopt a design of the two foldable tool bits with hollow U-shaped blades, a guide wire cavity communicating with the forceps tail part is formed in the side wall of one tool bit, and a control guide wire cavity is formed in the side wall, close to a middle section, of the other tool bit; the control guide wire cavity of thecorresponding tool bit punches inwards from the tail end of the tool bit to the position in front of starting parts of the blades of a distal section of the tool bit, and the corresponding tool bit isused for being fixed to the tool bit on the opposite side through the control guide wire; and the tool bits are opened and closed through the control guide wire, and when the two forceps too bits arefolded, the U-shaped blades at the front ends are used for cutting off and capturing tissues. By using the forceps, part of the aortic valve leaflets can be resected under a transcatheter intervention condition.

Description

technical field [0001] The invention relates to the technical field of medical devices, and relates to a tool for partially resecting aortic valve leaflets. Background technique [0002] Transcatheter prosthetic aortic valve implantation is a rapidly developing cardiac treatment technology in recent years, which provides a treatment opportunity for many patients who cannot afford traditional surgery and enables them to continue to survive. Whether a patient can perform transcatheter prosthetic aortic valve implantation requires a strict assessment of the patient's coronary risk. In actual clinical work, 10% to 20% of the target population will suffer from excessive autologous aortic valve leaflets. Transcatheter prosthetic aortic valve implantation cannot be performed after surgery by blocking the coronary ostia, thus losing the last chance for treatment. [0003] How to solve the coronary risk of autologous aortic valve leaflets has become a difficulty in the current trans...

AI Technical Summary

Problems solved by technology

At present, there is no mature technology and equipment that can directly solve the risk of native aortic valve in transcatheter aortic valve implantation

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