Neuro-intervention micro-guide wire bipolar electrocoagulator

A nerve intervention and guide wire technology, which is applied in the field of medical devices, can solve the problems of bipolar coagulation of nerve intervention micro guide wires that have not been reported, high thermal diffusion effect of unipolar coagulation, poor hemostasis effect of coagulation, etc., to achieve Small range of action, small thermal effect, and improved smoothness

Pending Publication Date: 2019-03-19
SHANGHAI CHANGHAI HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Electricity through the interventional micro-guide wire can only be used as one pole (active pole) of unipolar coagulation, and compared with bipolar coagulation, unipolar coagulation has obvious disadvantages: a. The power required for unipolar coagulation is double 4-10 times that of polar coagulation; b. The therma

Method used

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  • Neuro-intervention micro-guide wire bipolar electrocoagulator
  • Neuro-intervention micro-guide wire bipolar electrocoagulator
  • Neuro-intervention micro-guide wire bipolar electrocoagulator

Examples

Experimental program
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Effect test

Embodiment 1

[0045] Please refer to attached figure 1 , with figure 1 It is a schematic plan view of a nerve-intervention micro-guidewire bipolar coagulation in this embodiment. The bipolar electrocoagulation of the nerve intervention micro guide wire includes a variable diameter mandrel (1), a spring electrocoagulation head (2), an insulating protective layer (3), a hydrophilic coating (4), a helical wire core (5) , Ring electrocoagulation head (6);

[0046] Please refer to attached Figure 2-6 , with figure 2 It is a schematic diagram of the structure of a variable-diameter mandrel for bipolar electrocoagulation of a nerve-intervention micro-guide wire in this embodiment, and the attached image 3 It is a schematic diagram of the local structure of a nerve-intervention micro-guidewire bipolar coagulation in this embodiment, with Figure 4 It is a partial plan view of a nerve-intervention micro-guide wire bipolar coagulation in this embodiment, with Figure 5 It is a schematic diagra...

Embodiment 2

[0058] Please refer to the attached figure 1 , with figure 1 It is a schematic plan view of a nerve-intervention micro-guidewire bipolar coagulation in this embodiment.

[0059] The use process and method of the nerve-intervention micro-guidewire bipolar coagulation:

[0060] When in use, first properly shape the spring electrocoagulation head (2), cooperate with microcatheter superselection into the aneurysm cavity or the neck of the aneurysm, and stick the dispersed electrode (electrode plate) of the electrocoagulator on the patient's buttocks or On the skin of the thigh; connect the part of the near-end linear equal-diameter section (11) that is not coated with an insulating protective layer with a movable electrode connection line, and connect the electrocoagulation line connector (51) with another movable electrode connection wire; Under the action of high-frequency electrocoagulation, the intima of the tiny aneurysm between the spring electrocoagulation head (2) and th...

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Abstract

The invention relates to a neuro-intervention micro-guide wire bipolar electrocoagulator. The bipolar electrocoagulator comprises a variable-diameter mandrel, a spring electrocoagulation head, an insulating protective layer, a hydrophilic coating, a spiral wire core and an annular electrocoagulation head; the variable-diameter mandrel is composed of a near-end linear equal-diameter section, a streamline variable-diameter section, a far-end linear equal-diameter section, a conical spring sleeving part and a nut-shaped welding point; the insulating protective layer covers the side surface of thevariable-diameter mandrel, and the spiral wire core is located in the insulating protective layer; the upper end of the spiral wire core is connected with an electrocoagulation wire connector, the lower end of the spiral wire core is connected with the annular electrocoagulation head, and the insulating protective layer is coated with the hydrophilic coating. The bipolar electrocoagulator has theadvantages that the electric quantity used by the bipolar electrocoagulator is low, the heat effect is small, and deep damage is avoided; the bipolar electrocoagulator has the characteristics of conductivity, precision, small action range, flexibility and torsion controllability of a bipolar electrocoagulator; the design of the insulating protective layer prevents normal structures of the human body from being injured; the hydrophilic coating improves the compatibility with blood, the smoothness in small blood vessels is improved, and the intervention operation is easier to carry out.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a bipolar electric coagulation of a nerve intervention micro guide wire. Background technique [0002] Intracranial aneurysm is a cerebral hemangioma-like protrusion caused by abnormal expansion of local blood vessels. The rupture of intracranial aneurysm is the first cause of subarachnoid hemorrhage, and its fatality and disability rates are high. With the development of neurointerventional devices and technologies, neurointerventional therapy has gradually become the first-line method for the treatment of intracranial aneurysms. The existing methods of interventional treatment of intracranial aneurysms mainly use embolic materials such as coils in the aneurysm cavity, but for small aneurysms with a maximum diameter of less than 3 mm, the operation risk of coil filling in the aneurysm cavity is relatively high, especially for the largest diameter of the aneurysm. Smal...

Claims

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Application Information

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IPC IPC(8): A61B18/12A61B18/14
CPCA61B18/12A61B18/14A61B2018/00416A61B2018/00589A61B2018/1253A61B2018/1425
Inventor 张永鑫刘建民姚曼杨鹏飞李子付张磊赵瑞黄清海
Owner SHANGHAI CHANGHAI HOSPITAL
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