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Bipolar electrocoagulation catheter for varicose vein minimally invasive treatment

A catheter and electrode technology, applied in the field of bipolar coagulation catheter, can solve problems such as excessive coagulation, excessive or rapid heating of blood vessels, adhesion of coagulation head, etc., and achieve the effect of balanced temperature and effect

Pending Publication Date: 2019-12-06
宜宾市第一人民医院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In actual treatment, the power and time of coagulation should be strictly controlled during the operation of coagulation. Usually, medical personnel judge the power and time of coagulation according to experience. Excessive or rapid heating of blood vessels caused by long-term causes leads to excessive electrocoagulation, which makes the electrocoagulation head adhere to blood vessels

Method used

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  • Bipolar electrocoagulation catheter for varicose vein minimally invasive treatment
  • Bipolar electrocoagulation catheter for varicose vein minimally invasive treatment
  • Bipolar electrocoagulation catheter for varicose vein minimally invasive treatment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Such as Figure 1-3 As shown, this embodiment provides a bipolar electrocoagulation catheter for minimally invasive treatment of varicose veins. head 2 and metal conductive part 3, the insulating conduit 1 is provided with a first inner sleeve 4 coaxial with it, the upper end of the first inner sleeve 4 is closed, and the first inner sleeve 4 is provided with a first multiple Pore ​​capillary core 5 and fluid working medium; The electrocoagulation head 2 is fixed on the bottom surface of the insulating conduit 1 and the upper end of the electrocoagulation head 2 extends into the first porous capillary core 5, and one end of the metal conductive part 3 is along the insulating conduit 1 and The gap of the first inner sleeve 4 extends to connect with the electrocoagulation head 2, and the other end of the metal conductive member 3 extends to the joint of the two insulating conduits 1 to connect with the power connection wire.

[0046] In this embodiment, the first porous ...

Embodiment 2

[0052] The difference between this embodiment and Embodiment 1 is that the first inner sleeve 4 is provided with a second inner sleeve 7 which is coaxial with the first inner sleeve 4 and has an open upper end, and the first porous capillary core 5 is provided In the second inner sleeve 4 , at least one through hole 8 is provided on the inner peripheral wall of the second inner sleeve 7 , and the through hole 8 is located below the first porous capillary core 5 . .

[0053] In this embodiment, a second inner sleeve 7 is provided, and the second inner sleeve 7 isolates the fluid evaporation area from the reflux area, making the process more controllable; a through hole 8 is provided under the second inner sleeve 7, and the condensed fluid An inner sleeve 4 and the bottom end of the second inner sleeve 7 are deposited in the gap until the accumulated amount exceeds the height below the through hole and enters the second inner sleeve 7. In this way, the speed at which the condens...

Embodiment 3

[0055] The difference between this embodiment and Embodiment 2 is that the first inner sleeve 4 includes an upper section and a lower section connected to each other, and a first bearing is provided at the joint between the upper section and the lower section of the first inner sleeve 4 , and the first inner sleeve 4 The upper section of 4 is sleeved outside the outer peripheral wall of the first bearing, the lower section of the first inner sleeve 4 is sleeved inside the inner peripheral wall of the first bearing, and the top end of the first inner sleeve 4 is provided with a rotating gear 9 coaxial with it, The inner wall of the insulating conduit 1 is provided with a motor 10 that drives the rotating gear 9 to rotate; the second inner sleeve 7 includes an upper section and a lower section connected to each other, and a second bearing is provided at the connection between the upper section and the lower section of the second inner sleeve 7 , and the second inner sleeve The up...

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Abstract

The present invention discloses a bipolar electrocoagulation catheter for a varicose vein minimally invasive treatment. The bipolar electrocoagulation catheter comprises two insulated catheters (1) connected at top ends, the two insulated catheters are both provided with electrocoagulation heads (2) and metal conductive pieces (3), a first inner sleeve tube (4) coaxial with the insulated catheter(1) is arranged in the insulated catheter (1), and a first porous capillary core (5) and a fluid working medium are arranged inside each first inner sleeve tube (4); the electrocoagulation head (2) isfixed on a bottom surface of the insulated catheter (1) and an upper end of the electrocoagulation head (2) extends into the first porous capillary core (5), a gap between one end of the metal conductive piece (3) and the first inner sleeve tube (4) extends to be connected with the electrocoagulation head (2), and the other end of the metal conductive piece (3) extends to a joint place of the twoinsulated catheters (1) to be connected with a power supply connecting wire. Compared with the prior art, the bipolar electrocoagulation catheter of the technical scheme utilizes heat absorption andevaporation of the fluid working medium to control electrocoagulation temperatures, thereby realizing automatic adjustment of temperature lowering.

Description

technical field [0001] The invention relates to a bipolar electrocoagulation catheter, in particular to a bipolar electrocoagulation catheter for minimally invasive treatment of varicose veins. Background technique [0002] Varicose veins refer to tortuous and dilated veins due to factors such as blood stasis and weak venous walls. Varicose veins can occur in many parts of the body, and the most common place for varicose veins to occur is in the lower extremities. In the existing minimally invasive treatment of varicose veins, traditional thermal ablation techniques such as laser, microwave, and radio frequency are often used to achieve the purpose of sealing blood vessels by destroying blood vessels. [0003] Compared with traditional thermal ablation techniques, electrocoagulation therapy is a more effective treatment method. The use of electrocoagulation therapy for varicose veins is generally through puncture or incision, so that the electrocoagulation catheter is inser...

Claims

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Application Information

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IPC IPC(8): A61B18/12A61B18/14
CPCA61B18/1206A61B18/14A61B2018/00404A61B2018/00589A61B2018/0063A61B2018/00011A61B2018/126
Inventor 李昭辉
Owner 宜宾市第一人民医院
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