Carotid artery and arteria axillaris cannula capable of reducing brain or limb ischemia time and application
A carotid artery and axillary artery technology, which is used in carotid artery and axillary artery cannulation and application fields, can solve problems such as difficult to achieve blood flow distribution and pressure regulation, easy damage to axillary artery subclavian vein, right common carotid artery ischemia, etc. problems, to achieve the effect of reducing limb ischemia time, shortening operation time, and reducing blood damage
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Embodiment 1
[0042] Such as figure 1 , the simplest structure of the present invention includes the cannula main body 1 at the blood supply end, which is characterized in that it also includes two branch short tubes with shunt and partial pressure that communicate with the cannula main body 1—the proximal end tube 2 and the The distal end tube 3 is a medical perfusion plastic tube with a T-shaped structure on the overall structure. The internal diameters are all taken as 8mm, and the ends of the above-mentioned proximal end tube 2 and distal end tube 3 form a 45° oblique opening 5 to facilitate intubation.
[0043] Usually, the length of the main body of the cannula is 20 cm, and the proximal end tube 2 and the distal end tube 3 are 1.5 cm and 1.0 cm, respectively.
Embodiment 2
[0045] Such as Figure 4 , the present invention includes a cannula main body 1 at the blood supply end, which is characterized in that it also includes a proximal end tube 2 and a distal end tube 3 communicating with the cannula main body 1, and the three are medical plastics with a Y-shaped structure on the same plane tube, and the proximal tube 2 and the cannula main body 1 at the blood supply end form an angle of 120°, that is, Q is an angle of 60° to reduce blood flow resistance and pump pressure, thereby ensuring perfusion flow and reducing blood damage.
Embodiment 3
[0047] Such as image 3 , the present invention includes a cannula main body 1 at the blood supply end, which is characterized in that it also includes two branch tubes that communicate with the cannula main body 1 and have a shunt and a partial pressure effect—a proximal end tube 2 and a distal end tube 3, forming The perfusion plastic tube for medical extracorporeal circulation with a T-shaped or Y-shaped structure in the overall structure, and the above-mentioned perfused plastic tube with a T-shaped or Y-shaped structure in the overall structure, its proximal end tube 2 and distal end tube The ends of 3 can be spherical crowns with side holes, and there are 6 symmetrically arranged side holes, and it is ensured that the total area of each side hole is greater than the maximum opening area of the intubation tube main body 1.
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