A tool for creating a wound surface at the edge of a patent foramen ovale

Abstract

The invention discloses a tool for forming traumatic surface at the edge of patency foramen ovale. The tool comprises a catheter, a guidepost, a supporting rod, a knife, an operation mechanism and a guide wire, wherein the guidepost is arranged in the catheter in a sliding mode; the supporting rod is arranged in a third guide hole of the guidepost in a sliding mode, and a supporting head is arranged at the front end of the supporting rod; the guidepost is connected to the tail of the knife in a pin joint mode, and a tool bit is arranged on the head of the knife; the operation mechanism comprises an upper drawing wire and a lower drawing wire, the knife is connected to one end of the upper drawing wire and one end of the lower drawing wire, the other end of the upper drawing wire penetrates through a second guide hole of the guidepost and extends outward, and the other end of the lower drawing wire penetrates through a first guide hole of the guidepost and extends outward; the guidepost is connected to one end of the guide wire, and the other end of the guide wire extends outward along the catheter. The tool is flexible in using, convenient to operate and small in trauma.

Description

technical field [0001] The invention relates to the field of medical technology, in particular to a tool for forming a wound surface on the edge of a patent foramen ovale. Background technique [0002] The atrial septal foramen ovale is a normal channel for the fetus to maintain aerobic blood circulation before birth. After the fetus has spontaneous breathing, the atrial septal foramen ovale should be closed naturally, but a considerable part of the population has a septal foramen ovale. Permanent non-closure, PFO is considered to be a cardiac cause of central and migraine headaches, treatment of this disease is medical therapy, percutaneous catheterization and intuitive cardiac surgery, requires fabrication at the edge of PFO New wounds, and the application of drugs to accelerate the healing of patent foramen ovale, the process of making new wounds usually uses self-made tools, which have the disadvantages of low operation accuracy and inconvenient use, and percutaneous cat...

AI Technical Summary

Problems solved by technology

[0002] The atrial septal foramen ovale is a normal channel for the fetus to maintain aerobic blood circulation before birth. After the fetus has spontaneous breathing, the atrial septal foramen ovale should be closed naturally, but a considerable part of the population has a septal foramen ovale. Permanent non-closure, PFO is considered to be a cardiac cause of central and migraine headaches, treatment of this disease is medical therapy, percutaneous catheterization and intuitive cardiac surgery, requires fabrication at the edge of PFO New wounds, and the application of drugs to accelerate the healing of patent foramen ovale, the process of making new wounds usually uses self-made tools, which have the disadvantages of low operation accuracy and inconvenient use, and percutaneous catheterization and intuitive heart surgery can Radical cure and not easy to relapse, but small holes will be left on the septum secondary, and new hidden dangers will appear

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