Electrocoagulator used in blood vessels
An electrocoagulator and blood vessel technology, which is applied in the field of medical devices, can solve the problems of residual venous trunk or communication branch entrance, it is difficult for the electrocoagulation head to fully contact the vein wall, and the vein wall is difficult to ensure the effect of electrocoagulation.
Pending Publication Date: 2019-08-27
PEKING UNIV THIRD HOSPITAL
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Problems solved by technology
[0003] The above-mentioned design of the electrocoagulation head cannot change with the diameter of the vein, and it is difficult to ensure that the electrocoagulation head is fully in contact with the vein wall during the electrocoagulation process, especially when the vein cavity expands or the junction of the communicating branches, the vein wall is difficult to be burned completely, and in the vein trunk Or it may remain at the entrance of the traffic branch, which becomes one of the reasons for the recurrence
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Embodiment 2
[0045] Embodiment 2, with reference to Figure 4 , Figure 5 , is a kind of electric coagulator used in blood vessels disclosed by the present invention. The difference between embodiment 2 and embodiment 1 is that the electrocoagulation head 22 is a hollow hollow composed of several curved memory alloy wires 223 with conductive function. It is a spherical structure with a hollow structure, and the diameter of the spherical structure is larger than the outer diameter of the insulating sheath 1, and the two ends of the memory alloy wire 223 are respectively connected with the first insulating conduit 21 and the second insulating conduit 23. Spaces are left between adjacent memory alloy wires 223 . When the electrocoagulation head 22 is located inside the insulating sheath 1, the electrocoagulation head 22 is in a distorted state. When the electrocoagulation head 22 stretches out from the insertion end of the insulating sheath 1, the memory alloy wire 223 memory function, so t...
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The invention relates to an electrocoagulator used in blood vessels. The electrocoagulator used in the blood vessels comprises an insulating sheathing canal and an electrocoagulation assembly; the electrocoagulation assembly comprises a first insulating conduit, an electrocoagulation head and a second insulating conduit which are sequentially arranged; the electrocoagulation head is of a hollow-out ball-shaped structure made from a memory alloy material with a conductive function; the ball-shaped structure is internally hollowed; the diameter of the ball-shaped structure is greater than the outer diameter of the insulating sheathing canal; when the electrocoagulation head is located inside the insulating sheathing canal, the electrocoagulation head is in a shrinkage deformation state; whenthe electrocoagulation head extends out of the insulating sheathing canal, the electrocoagulation head restores to a dilated and expanded ball-shape state; the electrocoagulation assembly is internally provided with a metal conductive part; one end of the metal conductive part extends into the interior of the second insulating conduit to be connected with the electrocoagulation head; the other end of the metal conductive part is exposed from one end, away from the electrocoagulation head, of the second insulating conduit. According to the electrocoagulator used in the blood vessels, the electrocoagulation head can be in full contact with a venous wall during electrocoagulation, and therefore, the effects that the venous wall can be completely ignited and recrudescence is avoided are ensured.
Description
technical field [0001] The invention relates to the technical field of medical devices, in particular to an electrocoagulator used in blood vessels. Background technique [0002] At present, the electrocoagulation catheter used in the treatment of varicose veins of the lower extremities is a long catheter containing metal wires. The electrocoagulation head extends out of the catheter at the front end of the long catheter. The shape of the similar electrocoagulation head is fixed, and the electrocoagulation head is connected to the metal wire in the long catheter, and is connected to the electrocoagulation generator through the metal wire and the power line connected with the metal wire in turn. [0003] The above-mentioned design of the electrocoagulation head cannot change with the diameter of the vein, and it is difficult to ensure that the electrocoagulation head is fully in contact with the vein wall during the electrocoagulation process, especially when the vein cavity ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): A61B18/12A61B18/14
CPCA61B18/12A61B18/1492A61B2018/00589A61B2018/00404A61B2018/00059A61B2018/00214
Inventor 栾景源李选
Owner PEKING UNIV THIRD HOSPITAL