Vein valve resection instrument
A venous valve and device technology, applied in the field of venous valve excision devices, can solve the problems of high retraction speed, adhesion of the valve knife, difficult access to the valve excision device, etc., to achieve the effect of ensuring effectiveness, avoiding damage, and rapid excision
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[0035] Example 1
[0036] A venous valve excision device, which includes a blood vessel support tube 3; a resection structure 1, a docking structure 2; the blood vessel support structure is a structure arranged at the initial end of the blood vessel; A circular cutter 13 is formed at the end of the dome concave 12; the front end of the butt structure 2 includes a dome protruding structure 1 21 that matches the dome concave 12; the rear end of the butt structure 2 is provided with a dome protruding structure 2 22 that ensures smooth exit; In addition, a setting channel 41 for the pulling guide wire is arranged in the longitudinal middle of the cutting structure 1 and the docking structure 2, wherein the setting channel 41 of the cutting structure 1 is bonded with the pulling guide wire, and the pulling guide wire does not pass through the setting on the cutting structure 1. Channel 41; the setting channel 41 of the abutment structure 2 for pulling the guide wire; and the relati...
Example Embodiment
[0041] Example 2
[0042] On the basis of Example 1, a guide entry structure 31 for guiding the entry of the vascular support tube 3 is added; such as Figure 7 As shown, the specific arrangement is as follows: a guide entry structure 31 with a spherical top structure 2 311 and close to the vascular support tube 3 is arranged in the vascular support tube 3; the guide entry structure 31 is longer than the vascular support structure, and the guide entry structure 31 can be The vascular support tube is withdrawn from the vascular support tube 3; when used, the two are combined, and the vascular support tube 3 is sent to the initial section of the blood vessel under the guidance of the guide entry structure 31, and then withdrawn and guided into the structure 31; this setting is convenient and fast. 3 It is placed into the blood vessel to facilitate subsequent surgical operations.
Example Embodiment
[0043] Example 3
[0044] On the basis of Example 2, the heparin injection channel 32 that reduces the entry resistance of the vascular support tube 3; such as Figure 7 As shown, the specific arrangement is as follows: the guide entry structure 31 is provided with a heparin injection channel 32 penetrating the guide entry structure 31 , and heparin is injected through the heparin injection channel 32 , which can lubricate the guide entry structure 31 . The rear end of the heparin injection channel 32 is connected to an extension pipe, and the extension pipe is provided with a connector 33 of a syringe or a syringe pump 6, or, the rear end of the guide entry structure 31 is provided with a syringe connected to the heparin injection channel 32 or a connector 33 of the syringe pump 6; Connected with a syringe or syringe pump 6 with heparin, the heparin is guided and guided into the front end of the spherical top structure 2 311 of the structure 31 and flows and infiltrates the e...
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