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A stent-type, vascular technology, applied in the field of medical devices, can solve problems such as insufficient space and difficulty in achieving vascular anastomosis with artificial blood vessels, and achieve the effects of shortening time, reducing vascular intimal hyperplasia, and avoiding slippage
Inactive Publication Date: 2017-01-18
戚悠飞
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According to the accompanying drawings 38 and 39 of CN00130855, it can be seen that when the blood vessel cavity is inserted into the host blood vessel, a certain space is required between the two sections of blood ves...
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Embodiment 1
[0030] This embodiment is suitable for anastomosing blood vessels of 4-5 mm.
[0031] see Figure 1-Figure 3 , the present invention is a stent-type vascular anastomosis device, which includes a stent graft 1 and a transporter 2 .
[0032] The stent-graft 1 includes an inner membrane 11, a metal stent 12 and an outer membrane 13;
[0033] The conveyor 2 includes a balloon 21 , a connecting hose 22 and a joint 23 which communicate in sequence.
[0034] The metal support 12 has a cylindrical shape as a whole, and the metal support 12 is braided from a cobalt-chromium alloy wire with a diameter of 0.15 mm. The metal stent 12 has a diameter of 5mm and a length of 30mm; it is suitable for anastomosis of blood vessels with a diameter of 4-5mm. The metal stent 12 can also be of other sizes, suitable for blood vessels of other diameters.
[0035] Both ends of the metal bracket 12 are respectively fixedly provided with at least two barbs 14 uniformly distributed around the axis of ...
Embodiment 2
[0051] The difference between this embodiment and the first embodiment is that this embodiment also includes a hard sheath tube 3 , and the sheath tube 3 is sleeved on the connecting hose 22 .
[0052] see Figure 7 , before use, a pre-prepared air extraction device (not shown in the accompanying drawings, such as a syringe, a pressure pump, etc.) is inserted into the joint 23, and the gas in the balloon 21 is extracted, thereby shrinking the balloon 21; 1 Folding, so that the folded stent graft 1 is attached to the balloon 21; then insert the stent graft 1 and the balloon 21 into the sheath 3.
[0053] see Figure 8 , insert one end of the hard sheath tube 3 into the anastomosis, and then push the connecting hose 22 to separate the stent graft 1 and the balloon 21 from the sheath tube 3; since the sheath tube 3 is hard, it can be conveniently The stent graft 1 and the balloon 21 are delivered to the anastomotic stoma.
[0054] After the stent graft 1 is expanded, insert an...
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Abstract
The invention relates to the field of medical equipment and particularly relates to a bracket type vascular anastomosis device. The bracket type vascular anastomosis device comprises a film laminating bracket; the film laminating bracket comprises an inner-layer laminating film, a metal bracket and an outer-layer laminating film; the whole body of the metal bracket is cylindrical; the inner-layer laminating film and the outer-layer laminating film are lined on an inner side and an outer side of the metal bracket respectively; the bracket type vascular anastomosis device further comprises a conveyor and the conveyor comprises a balloon, a connecting hose and a connector, which are communicated in sequence; the metal bracket is formed by knitting a cobalt-chromium alloy wire or a NiTi shape memory alloy wire; the balloon is a non-compliance balloon; the balloon is arranged in the film laminating bracket. The bracket type vascular anastomosis device is suitable for carrying out vascular anastomosis on deep tissues with relatively narrow spaces; the vascular anastomosis time can be shortened; vascular intimal hyperplasia can be reduced to the greatest extent and a narrow anastomosis hole is avoided; after the anastomosis, a blood vessel can be retracted and relaxed in a certain extent along blood pressure and physiological demands are met; the blood vessel can be prevented from slipping off from the film laminating bracket and the bracket type vascular anastomosis device is very reliable.
Description
technical field [0001] The invention relates to the field of medical instruments, in particular to a stent type blood vessel anastomosis device. Background technique [0002] With the development of clinical surgery, more and more vascular anastomosis operations are performed in various operations. The various operations mentioned here include not only vascular anastomosis performed in conventional operations such as vascular surgery and cardiac surgery, but also general surgery and urological surgery. Reconstruction of blood vessels involved in extended tumor resection, as well as vascular reconstruction of various solid organ transplants. [0003] However, the traditional vascular anastomosis method with prolene suture is complicated to operate and takes a long time to anastomose, which prolongs the ischemia time of distal tissues and organs, affects the blood flow rate of the anastomosis, and seriously damages the intima. [0004] Mechanical vascular anastomosis is a vas...
Claims
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