Medical guiding wire and method for manufacturing same
A manufacturing method and technology of guide wire, applied in the direction of catheter, application, guide wire, etc., can solve the problems of long retention time and tissue damage of intranasal tube, and achieve the effects of low delivery resistance, elimination of toxic effects and less pain.
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Embodiment 1
[0039] Such as figure 1 with figure 2 As shown, the medical guide wire has a length of 80cm and is a metal linear body that gradually thickens; image 3 with Figure 4 As shown, the front end 21 and the rear end 31 are hemispherical, and the 25 mm of the front end 2 is a cylinder with a diameter of 0.20 mm. From 25 mm to 80 cm of the front end 2, the guide wire body 1 is gradually thickened to form a cone shape, wherein The diameter of the rear end tip 31 is 0.35 mm.
[0040]The manufacturing method of the above-mentioned medical guide wire: select a metal guide wire that meets the requirements, and the composition of the metal guide wire is shown in Table 1. The metal guide wire is subjected to an ankylosis treatment, that is, the metal guide wire is made into a coil wire, and then connected with a damping traction wire , under the condition of a temperature of 300°C, the guide wire is in a rigid state, and after being kept at a constant temperature for 10 minutes, it is ...
Embodiment 2
[0042] Such as figure 1 with figure 2 As shown, the medical guide wire is 70cm in length, and it is a metal wire-like body that gradually thickens; image 3 with Figure 4 As shown, the front end 21 and the rear end 31 are hemispherical, and the 20 mm of the front end 2 is a cylinder with a diameter of 0.15 mm. From 20 mm to 70 cm of the front end 2, the guide wire body 1 is gradually thickened to form a cone, wherein The diameter of the rear end tip 31 is 0.32 mm.
[0043] The manufacturing method of the above-mentioned medical guide wire: select a metal guide wire that meets the requirements, and the composition of the metal guide wire is shown in Table 1. The metal guide wire is subjected to an ankylosis treatment, that is, the metal guide wire is made into a coil wire, and then connected with a damping traction wire , under the condition of temperature of 350°C, the guide wire is in a tonic state, and after being kept at a constant temperature for 5 minutes, it is natu...
Embodiment 3
[0045] Such as figure 1 with figure 2 As shown, the medical guide wire is 60cm in length, and it is a metal linear body that gradually thickens; image 3 with Figure 4 As shown, the front end 21 and the rear end 31 are hemispherical, and the 15 mm of the front end 2 is a cylinder with a diameter of 0.12 mm. From 15 mm to 60 cm of the front end 2, the guide wire body 1 is gradually thickened to form a cone, wherein The diameter of the rear end tip 31 is 0.30 mm.
[0046] The manufacturing method of the above-mentioned medical guide wire: select a metal guide wire that meets the requirements, and the composition of the metal guide wire is shown in Table 1. The metal guide wire is subjected to an ankylosis treatment, that is, the metal guide wire is made into a coil wire, and then connected with a damping traction wire , at a temperature of 400°C, make the guide wire in a tonic state, keep the temperature for 3 minutes, and cool it down to room temperature naturally; carry o...
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