Intraaortic guide sheath group and catheter sheath

Abstract

The invention discloses an intraaortic guide sheath group and a catheter sheath, wherein the intraaortic guide sheath group comprises a catheter sheath, a guide catheter and a needle. The catheter sheath comprises a sheath tube and a control member of one end of the sheath tube, the other end of the sheath tube is a tip, an axial hole and an injection hole are axially distributed inside the sheathtube, a plurality of balloons are distributed near the tip of the sheath tube, the balloons are communicated with the injection hole, the guide catheter is positioned in the axial hole of the sheathtube, and the puncture needle is positioned in the tube of the guide catheter. A balloon is provided at the outer periphery of the distal end of the sheath tube, the balloon bulges in four directionsand collides with the inner wall of the aorta, The sheath tube is limited in four directions, and the sheath tube is kept in the center of the aortic lumen. The guide catheter located in the sheath tube can be adjusted to the target vessel freely, avoiding the guide catheter shaking in the aorta, so as to realize the accurate aiming and positioning of the target vessel, and then the puncture in the catheter is controlled to open a window on the covered stent.

Description

technical field [0001] The invention relates to the field of cardiovascular medical equipment, in particular to an intra-aortic guide sheath set and a catheter sheath. Background technique [0002] The aorta is the largest arterial tube in the human body. It originates from the left ventricle of the heart, arches upwards to the right and downwards, and then descends the spine, branching out into many smaller arteries in the thoracic and abdominal cavities. The aorta is the main conduit that carries blood to all parts of the body. The main trunk of the systemic circulation arteries and arteries at all levels of the body are directly or indirectly emanating from the aorta. The aorta can be divided into ascending aorta, aortic arch and descending aorta. The descending aorta is bounded by the aortic hiatus of the diaphragm and is divided into the thoracic aorta and abdominal aorta. Aortic disease includes diseases that occur in the ascending aorta, aortic arch, thoracic aorta...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the disadvantages of the existing in situ fenestration sheath group that the distal end of the catheter sheath cannot be kept at the axis of the aorta, it is difficult to adjust the pointing of the puncture needle in the catheter, and the operation is difficult and risky, the applicant provides a structurally reasonable The advanced aortic guide sheath group and catheter sheath can keep the sheath in the center of the aortic lumen, avoid the guiding catheter from shaking in the aorta, realize precise targeting and positioning of the target blood vessel, and improve the quality of the guiding catheter and puncture needle. The ease and precision of pointing adjustments

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