Adjustable bronchial thermoforming catheter
A technology of bronchi and thermoforming, which is applied in the field of medical devices, can solve the problems affecting the effect of surgical treatment, the bending angle of the catheter is small, and the inability to act on the airway, etc., so as to reduce the number of ablation times, reduce the difficulty of operation, and reduce the pain of patients.
Inactive Publication Date: 2020-06-05
上海安臻医疗科技有限公司
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Problems solved by technology
The bronchial thermoformed catheters of the Alair series products are prone to deformation of the sub-needle during use, which affects the service life and the effect of surgical treatment, and cannot act on the airway with a diameter of less than 3mm. The working surface of the sub-needle is small, and the catheter can be adjusted. The bending angle is also smaller
Method used
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Embodiment Construction
[0023] The specific implementation manners of the present invention will be further described below in conjunction with the accompanying drawings, so as to make the technical solution of the present invention easier to understand and grasp.
[0024] As shown in Figure 1, an adjustable bronchial thermoforming catheter, the catheter includes a main body tube 2, an electrode segment 1, a pull wire 104 connected to the electrode to transmit radio frequency energy and adjust the shape, a temperature detection wire 106, and a wire for adjusting the size of the electrode An adjustment wire 107, a handle 3 for extending the electrode and adjusting the size of the electrode, the main body tube 2 includes a distal flexible section 201 and a main section connected to the handle 3, and the electrode includes a basket electrode. The pull wire 104 passes through the main tube 2 into the handle 3 to stretch the electrode and is connected with the cable 4 to receive radio frequency energy. Th...
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The invention discloses an adjustable bronchial thermoforming catheter which includes an electrode segment, a body tube and a handle. The electrode segment includes electrodes, a positioning tube, a metal end cap, a metal tube, a temperature detection wire, a pull wire, an adjustment wire and a spring, one ends of the electrode and the pull wire are fixed to the metal end cap, the other ends of the electrode are fixed in the metal tube, the other end of the pull wire is connected to an extension button on the handle through the positioning tube, one end of the adjusting wire is fixed to the metal tube, the other end of the adjustment wire is connected to a telescopic button on the handle, the distal end of the spring is fixed to the adjustment wire, and the electrodes are distributed around the pull wire. A sub-needle of the adjustable bronchial thermoforming catheter is not prone to deforming, and the adjustable bronchial thermoforming catheter can be applied to finer trachea, and theelectrode length is adjustable.
Description
technical field [0001] The invention belongs to the field of medical equipment, and in particular relates to an adjustable bronchi thermoforming catheter. Background technique [0002] Radio frequency refers to radio frequency, but it does not belong to the division of bands in radio communication. Because the radiation performance in this frequency range is very low, it is rarely used in communication equipment, and the main effect on living organisms is thermal effect. When the frequency of radiofrequency current is high to a certain value (>100kHz), it will cause the movement of charged ions in the tissue, that is, frictional heat generation (60~100°C). The commonly used frequency of radiofrequency ablation equipment is 200~500kHz, and the output power is determined according to different ablation tissues, and the bronchi is generally about 20W. [0003] Bronchial thermoplasty is an innovative treatment technology for asthma. Through bronchoscopic introduction of the ...
Claims
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IPC IPC(8): A61B18/14
CPCA61B18/1492A61B2018/00541A61B2018/00589A61B2018/00791A61B2018/00059
Inventor 汪宇秦杰汪虔金伟
Owner 上海安臻医疗科技有限公司