Transradial artery puncture ablation catheter

Abstract

The invention relates to the field of high-end equipment manufacturing and relates to the field of classification number B65D, in particular to a transradial artery puncture ablation catheter. The transradial artery puncture ablation catheter comprises a catheter body, an ablation electrode wire and control wires, the catheter body comprises a conveying pipe and an insulating pipe connected with the conveying pipe, the far end of the insulating pipe is a closed end, the near end of the insulating pipe is an open end, and N ablation holes are formed in the circumferential wall of the insulating pipe, wherein N is greater than or equal to 1; the ablation electrode wire is arranged in the catheter body, one end of the ablation electrode wire is fixedly connected to the closed end of the insulating pipe, and the other end of the ablation electrode wire is connected with equipment for providing ablation energy; the number of the control wires is M, the control wires are arranged in the catheter body, one end of each control wire is fixedly connected to the closed end of the insulating pipe, and M is larger than or equal to 1; and the insulating pipe has a first shape and a second shape by adjusting the control wires, in the first shape, the insulating pipe is suitable for moving in a blood vessel, and in the second shape, the insulating pipe is suitable for transmitting ablation energy to a part to be ablated.

Description

technical field [0001] The present invention relates to the technical field of high-end equipment manufacturing, specifically to the technical field with classification number B65D, more specifically to the technical field of transport catheters, and more particularly to a radial artery puncture and ablation catheter. Background technique [0002] As ablation surgery is widely used in disease treatment, the structures of ablation catheters used in renal artery ablation surgery are also diversified. Patent Publication No. CN204274635U discloses a catheter for renal artery ablation, including a catheter body with a proximal end, a distal end and a central chamber running through it; end, the perfusion channel, the distal end of which extends through the central cavity of the catheter body into the cavity of the ablation part, and communicates with the fluid channel of the ablation electrode for the perfusion fluid to flow in. Patent Publication No. CN205814415U discloses a mu...

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Problems solved by technology

[0003] There are multiple disadvantages in the above-disclosed technologies, such as 1. Before the operation, the guide wire will be relied on to enter the guide sheath. During the operation, the guide wire needs to be pulled out and then ablated. There are many steps in the operation. During the process, the ablation effect may be unsatisfactory because the doctor did not pull out the guide wire; 2. There are only two types of partial ablation catheters in the prior art, and when facing renal artery stenosis or large curvature of the renal artery In the case of the patient, the ablation catheter cannot be very well attached to the wall of the renal artery, so that the ablation cannot be performed or the ablation effect is not satisfactory; 3. For the existing technology that can change the shape, the ablation catheter wall may be affected When subjected to stress, the changeable deformation of the ablation catheter is hindered, and it is difficult to obtain a very large bending deformation; 4. Because the existing technology will pass through the guide wire, and in addition There will also be a guide sheath, so the diameter of the ablation catheter in the prior art will be too large, and the ablation catheter with a large diameter is not suitable for ablation from the radial artery approach to the renal artery. Ablation, no or less radial approach technique

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