Balloon catheter
A balloon and catheter technology, applied in balloon-shaped catheters, catheters, operations, etc., can solve problems such as damage, troublesome work, deformation, etc., and achieve the effects of good engineering stability and convenient production.
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Embodiment 1
[0089] The first tubular member for passing the wire, which forms the outermost layer, is made of polyester with a Shore hardness of 60D, a flexural modulus of 274MPa, a melting point of 216°C, and a soft segment ratio of 22%. Constructed of elastomer; the innermost surface is composed of high-density polyethylene. The first tubular member is passed through the inside of the balloon. The balloon is formed of a polyester elastomer with a Shore hardness of 72D, a bending elastic modulus of 568MPa, a melting point of 218°C, and a soft segment ratio of 13%. The nominal expansion value is 3.0mm. The distal end of the balloon is concentrically welded on the outside of the first tubular member to form a figure 2 A rapid exchange coronary balloon catheter with a catheter distal portion as shown. In addition, in this embodiment 1, the second tubular member connected to the proximal side of the balloon and constituting the outer surface of the catheter is made of polyester elastomer ...
Embodiment 2
[0090] The first tubular member for the passage of the wire, which forms the outermost layer, is composed of a polyamide elastomer with a Shore hardness of 55D, a flexural modulus of 196MPa, a melting point of 168°C, and a soft segment ratio of 35%; The innermost surface is composed of high-density polyethylene. The first tubular member is passed through the inside of the balloon. The balloon is formed of a polyamide elastomer with a Shore hardness of 70D, a bending elastic modulus of 430MPa, a melting point of 172°C, and a soft segment ratio of 14%. The nominal expansion value is 3.0mm. The distal end of the balloon is concentrically welded on the outside of the first tubular member to form a figure 2 A rapid exchange coronary balloon catheter with a catheter distal portion as shown. In addition, in this embodiment 2, the second tubular member connected to the proximal side of the balloon and constituting the outer surface of the catheter is made of polyamide elastomer tha...
Embodiment 3
[0091] The first tubular member for the passage of the wire, which forms the outermost layer of the part welded to the balloon, is made of a material with a Shore hardness of 40D, a bending elastic modulus of 93MPa, a melting point of 168°C, and a soft segment ratio of 47%. It is made of polyamide elastomer; the innermost surface of the main body and the part welded with the balloon is made of high-density polyethylene. The first tubular member is passed through the inside of the balloon. The balloon is formed of a polyamide elastomer with a Shore hardness of 70D, a bending elastic modulus of 430MPa, a melting point of 172°C, and a soft segment ratio of 14%. The nominal expansion value is 3.0mm. The distal end of the balloon is concentrically welded on the outside of the first tubular member to form a Figure 7 A rapid exchange coronary balloon catheter with a catheter distal portion as shown. Figure 7 The reference numeral 26 in represents the opening part for introducing ...
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