Blood vessel closure structure which can be completely degraded
A blood vessel closure and blood vessel technology, applied in the field of medical devices, can solve the problems of occupying medical staff's time, long-term bed rest of patients, vagus nerve reflex, etc., and achieve the effect of shortening bed rest time, simplifying operation steps, and reducing burden
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no. 1 example
[0041] The fully degradable vascular closure structure provided by this embodiment is as figure 1 , 2 shown.
[0042] The blocking umbrella anchor 11 provided in this embodiment is made of a completely degradable material, which is made by laser cutting a degradable pipe and then heat-shaped; preferably, the surface of the blocking umbrella anchor 11 is covered with a 111 flow blocking film, and the The end is connected with suture 3. Firstly, the delivery sheath 4 is inserted into the vascular lumen along the puncture port, and then the push rod 6 is pushed to spread the occlusion umbrella anchor 11 in the lumen, the delivery sheath 4 is withdrawn, and then the suture 3 is pulled back to seal it. The blocking umbrella is anchored on the inner wall of the blood vessel; the presence of the blocking membrane 111 enables the structure to have a hemostatic effect during the anchoring process; preferably, the material of the blocking umbrella anchor 11 is PLA, and the material of...
no. 2 example
[0047] The fully degradable vascular closure structure provided by this embodiment is as image 3 , 4 shown.
[0048] The strip anchor 12 provided in this embodiment is made of completely degradable material; the strip anchor 12 is connected with the suture 3 . First, insert the delivery sheath 4 into the vessel cavity along the puncture port, then push the push rod 6 to release the strip anchor 12 in the lumen, withdraw the delivery sheath 4, and then pull the suture 3 back to make the strip anchor The anchor 12 is anchored on the inner wall of the blood vessel; preferably, the material of the strip anchor 12 is PGA.
[0049] After the bar-shaped anchor 12 is anchored, the push rod 6 is retracted until the bovine collagen tampon oppressor 22 is completely released on the outer wall of the lumen, such as Figure 4 Shown; Preferably, the constrictor material provided in this embodiment is bovine collagen, which is in the shape of a porous sponge and can be shrunk in the deli...
no. 3 example
[0053] The fully degradable vascular closure structure provided by this embodiment is as Figure 5 , 6 shown.
[0054] The balloon anchor 13 provided in this embodiment is a temporary anchor; preferably, the balloon anchor 13 is a spherical balloon made of Pebax. First, insert the delivery sheath 4 into the lumen of the blood vessel along the puncture port, then push the balloon inflation tube 8 to the marked point, at this time, the balloon is inflated, and then the balloon is retracted so that the balloon is close to the inner wall of the blood vessel to complete the anchoring Certainly.
[0055] After the temporary balloon anchor 13 is anchored, the delivery sheath 4 is retracted to the outer wall of the lumen, and the hydrogel (PEG hydrogel oppressor 23) is slowly injected along the injection tube 9, such as Figure 6 Shown; Preferably, the compressive material hydrogel material provided in this embodiment is PEG, which will absorb water and swell after being released o...
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