Guide catheter with anti-electromagnetic interference function
An anti-electromagnetic interference and catheter technology, which is applied in the field of medical devices, can solve the problems that patients cannot perform ablation surgery, increase the overall size of the ablation catheter, increase patient damage, etc., and achieve the goal of strengthening strength, improving accuracy and sensitivity, and eliminating interference Effect
Active Publication Date: 2016-04-20
SHANGHAI GOLDEN LEAF MED TEC
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Problems solved by technology
However, this method will increase the overall size of the ablation catheter, and the expansion of the outer diameter of the ablation catheter will increase the damage of the patient, and the ablation operation cannot be performed for patients with small blood vessels
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[0031] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0032] Such as figure 1 As shown, the guide catheter with anti-electromagnetic interference function provided by the present invention includes a cylindrical hollow tube body 3, the front end of the tube body 3 has a port, the far end of the tube body 3 is provided with a distal interface 2, and the far end of the tube body 3 The end refers to the end of the tube body 3 away from the human body, wherein the distal interface 2 is connected with a three-way valve 1 through a catheter 7, and a hemostatic valve 8 is arranged inside the distal interface 2. At the same time, the distal interface 2 is connected with a skin valve through a wire 6. Electrode 4. In addition, the guide catheter is provided with a shielding net 12 woven by conductive material in the tube body 3 and the distal interface 2, and the conductive material is cross-laid along th...
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The invention discloses a guiding catheter with an anti-electromagnetic-interference function. The guiding catheter comprises a cylindrical hollow tube body, a port is formed in the front end of the tube body, a remote interface is formed in the remote end of the tube body, the tube body and the remote interface comprise a shielding net woven through a conducting material, the conducting material is laid crosswise along the wall of the tube body to form a closed annular shielding net, and the shielding net is led out at the remote end interface to form a joint which can be grounded in different modes. According to the guiding catheter, the shielding net is arranged in the tube body and has an electromagnetic shielding effect on an internal ablation catheter, so that interference of the environment electromagnetic wave to the ablation catheter is reduced or eliminated. When the guiding catheter is applied to heart and renal artery ablation operations, effects of the environment electromagnetic field on monitoring signals of the ablation catheters can be resisted, and the accuracy and the sensibility for measuring of electrophysiological signals are improved.
Description
technical field [0001] The invention relates to a guiding catheter, in particular to a guiding catheter with anti-electromagnetic interference function, which belongs to the technical field of medical devices. Background technique [0002] In radiofrequency ablation surgery, especially in renal artery nerve ablation surgery and cardiac electrocardiographic ablation surgery, as well as in neurointerventional surgery, it is necessary to ablate the tissue of the heart or renal artery and nerve tissue before, during and after surgery Perform electrophysiological monitoring. [0003] Since the electrophysiological signals are very weak and the differences are very subtle, if they are interfered by the environmental electric field and magnetic field signals, the detection instrument will not be able to monitor these subtle changes and fluctuations. Therefore, the anti-interference ability of the monitoring system is the key to accurate and sensitive monitoring results. important ...
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IPC IPC(8): A61B18/12
Inventor 董永华曹红光
Owner SHANGHAI GOLDEN LEAF MED TEC