Small and medium diameter artificial blood vessel with adjustable pressure and flow
An artificial blood vessel and adjustable technology, applied in the field of medical devices, can solve the problems of excessive size, lack of blood flow, and inability to effectively control shunt flow, and achieve good tissue compatibility and no rejection effect
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Embodiment 1
[0103] Example 1 Mechanical pressure flow control type artificial blood vessel
[0104] The mechanical pressure flow control type artificial blood vessel is composed of the artificial blood vessel 400 and the mechanical pressure flow control device ( figure 1 , Figure 2-10 ).
[0105] 1. Mechanical pressure flow regulator
[0106] The mechanical pressure flow regulator includes: a fixed shell 110 and a regulating spring 120 . A control port 117 is also provided on the fixed shell 110 ; the control spring 120 includes: a control spring wall ring 121 and a spring handle 123 . Such as figure 2 , image 3 and Figure 4 As shown, the position fixing hole 114 and the clasp 116 are used for assembling and fixing the regulating spring 120 and the artificial blood vessel 400 .
[0107] Control spring 120 ( Figure 4 ), consisting of two parts of spring handle 123 and regulating spring wall ring 121, in order to adjust the caliber of regulating and regulating spring wall ring ...
Embodiment 2
[0134] Example 2 In vitro remote control pressure flow control type artificial blood vessel
[0135] The extracorporeal remote-controlled pressure-flow regulating artificial blood vessel includes: the artificial blood vessel 400 and the extracorporeal remote-controlled pressure-flow regulator.
[0136] 1. In vitro remote control pressure flow regulator
[0137] In vitro remote pressure flow regulator ( Figure 11-Figure 24 ), including: a fixed shell 210, a control spring 220, a control axis 230 and an external remote controller 240. fixed shell ( Figure 11 , Figure 12 ), be provided with position fixing hole 214, position fixing hole 215 and clasp 216, in order to prepare for the in vivo position fixing after assembling and fixing regulating spring 220 and blood vessel anastomosis.
[0138] (1) fixed shell 210, such as Figure 11 , Figure 12 As shown, it is made of a rectangular sheet with hardness, foldability and elasticity, and is a short cylindrical fixed shell rin...
Embodiment 3
[0170] Example 3 In vivo induction pressure flow control type artificial blood vessel
[0171] The artificial blood vessel regulated by induction pressure and flow in the body includes: the artificial blood vessel 400 and the flow regulation by induction pressure in the body.
[0172] 1. Pressure flow regulation in the body
[0173] In vivo pressure-induced flow regulation ( Figure 25 , Figure 26 ), including: a fixed shell 310, a regulating spring 320, a regulating shaft core 330 and an inductor 340. The in vivo induction pressure and flow regulation of this embodiment is similar to the external remote control pressure and flow regulator of Embodiment 2, the difference lies in that an in vivo sensor 340 is installed in this embodiment.
[0174] (1) Fixed shell 310, regulating spring 320, regulating shaft core 330, such as Figure 25As shown, the two ends of the fixed shell 310 are respectively provided with position fixing holes 314 connected with the control spring 320...
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