Device for intracavity in-situ fenestration and puncture

Abstract

The invention discloses a device for intracavity in-situ fenestration and puncture. The device comprises a balloon catheter and a puncture needle assembly, wherein the balloon catheter is internally and coaxially sleeved with the puncture needle assembly. The balloon catheter comprises a balloon push rod with at least two cavities, a balloon body and a balloon catheter base, wherein the balloon body is mounted at the distal end of the balloon push rod, and the balloon catheter base is mounted at the proximal end of the balloon push rod. The puncture needle assembly comprises a puncture push rod, a puncture needle and a puncture handle, wherein the puncture needle is mounted at the distal end of the puncture push rod. The puncture handle comprises a proximal handle and a distal handle, wherein the distal handle is fixedly or removably fixedly connected to the balloon catheter base; the proximal handle is connected to the puncture push rod and disposed in the direction of the distal handle. A puncture control structure is disposed between the distal and proximal handles, and used for controlling puncture depth of the puncture needle and locking the puncture needle. The device for intracavity in-situ fenestration and puncture is capable of precisely controlling the puncture depth, adjusting the puncture depth, locking the puncture needle, and precisely puncturing and maintaining puncture sites at the center of branch blood vessels.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and relates to an intracavity interventional device, in particular to a puncture device for in-situ fenestration in a cavity. Background technique [0002] With the continuous development of endovascular reconstruction surgery, the application of covered stents is also increasing, but the use of covered stents in some special parts will affect the blood supply of arterial branch vessels, such as the aortic arch, celiac trunk, and bilateral renal arteries. And the superior mesenteric artery and other parts, so that the use of covered stent grafts in these parts is greatly limited. At present, the stent surgery of the above-mentioned parts can only be performed through the improvement of surgical methods, such as the use of hybrid surgery, or the improvement of equipment, such as modular stents, pre-fenestrated stents, branch stents, multi-layer bare stents, etc., but For the vast majority...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is that the puncture depth cannot be precisely adjusted, and it is easy to cause the puncture depth to be too long to accidentally injure the contralateral tissue, and the puncture depth is not enough to cause the puncture to fail. Adjustable, can lock the puncture depth, and accurately puncture to keep the puncture point in the center of the branch blood vessel in-situ fenestration puncture device

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