Braided catheter with reinforcing ribs

Abstract

The invention discloses a braided catheter with reinforcing ribs, and the braided catheter comprises a main body tube, a transition section and a sharp end; the hardness of the main body tube is sequentially reduced, the circumference of the open end of the transition section is provided with an inclined closing opening from the outer circumference to the inner circumference, and the open end of the sharp end is provided with a horn-shaped closing opening. The end part of the closing opening with the inclination of the transition section is overlapped with the end part of the closing opening with the horn-shaped tip end, and the near end part of the transition section is provided with a step surface which shrinks towards the radial inner side; the main body pipe comprises an inner pipe, axial reinforcing ribs, a metal woven mesh pipe and an outer pipe which are sequentially arranged from inside to outside in the radial direction, the metal woven mesh pipe is formed by weaving two strands of metal wires side by side, and the outer circumference of the far end of the main body pipe is in lap joint with the inner circumference of the step face. The angiography catheter has better torsion control, compression resistance, bending resistance and bending resistance, better memory shape and developability are kept, injuries to a patient due to poor torsion control, insufficient supporting force and other problems of the angiography catheter in an operation are reduced, and the using comfort of the patient with the texture used by a doctor is improved.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a braided catheter with reinforcing ribs. Background technique [0002] With the continuous development of medicine, medical interventional surgery has also been greatly developed. As an interventional medical tool, contrast catheter has been greatly used in vascular diseases. Compared with traditional surgery, interventional surgery requires only local anesthesia and an incision of about 1 mm. It has the advantages of less bleeding, less trauma, fewer complications, safety and reliability, and quick postoperative recovery. In order for the vascular intervention catheter to reach the doctor's expected position smoothly during the process of entering the blood vessel and to withstand the huge pressure during the angiography process, the angiography catheter is often required to have certain pressure resistance, strong twist control and pushability. [0003] Although t...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to solve the physical performance deficiency of the above-mentioned existing vascular interventional catheters, and provide a braided catheter with ribs, which has better twist control, compression resistance, bending resistance, bending resistance and can Maintain a better memory shape and better visualization, and reduce the inconvenience caused to the doctor and the injury to the patient due to problems such as poor twist control, insufficient support, poor pushability and poor visualization of the vascular interventional catheter during surgery

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