• Nordson Medical PET Heat Shrink Tubing
    Time:2019-06-30       Author:HnG Medical


    PET HEAT SHRINK TUBING


    The world's thinnest, smallest, & strongest heat shrink tubing

    Nordson MEDICAL’s polyester (PET) heat shrink tubing is ultra-thin-walled, high-strength, optically clear or pigmented and heat shrinkable. This Vention Medical technology was developed specifically for the medical device industry, and has been at the leading edge of medical device tubing since its creation.


    1

    ADVANTAGES OF PET


     PET Heat Shrink Tubing is an extremely unique material with impressive characteristics including:


     ? Ultra-thin wall, ultra-high strength, and high dielectric strength

     ? Can be recovered at relatively low temperatures

     ? Axial shrinkage pulls components together

     ? Can be transformed into custom parts by drawing/shrinking onto a shaped mandrel(conical, square, triangular, etc.)

     ? Can be “heat-set” so that it is stable up to a rescribed temperature

     ? Can be printed for shaft marking/indicating


    2

    FEATURES



    Features

    Diameter range

    0.006” – 1.5” (0.15 – 38.1 mm)

    Wall thickness range

    0.0001” – 0.004” (0.0025 – 0.10 mm)

    Shrink ratios

    1.1:1 up to 3:1*

    Tight fit is best

    15% gap or less**

    Material shrink 

    temp range

    185°F to 374°F (85°C to 190°C)

    Material melt temp

    473°F (245°C)

    Recommended hot box range

    300°F to 450°F (149°C to 232°C)

    Releases

    PET releases easily from most common thermoplastics. However, some low-durometer urethanes tend to tack to the PET and may require a resting period (~1hr) or may not be compatible. Run test samples with these materials.

    Tensile Strength

    Very high tensile strength can be realized (>20,000 PSI)

    Electrical Insulation

    Good

    Surface Finish

    Ultra smooth, hard, glossy finish

    Color/Clarity

    Available in clear and a variety of opaque and transparent colors

    Bondability

    BondabilityCan be bonded using a wide range of adhesives (surface treatment recommended)

    Flex Fatigue

    Very high flex fatigue properties

    生物相容性

    符合 USP VI 类和 ISO 10993要求

    消毒

    环氧乙烷、伽马辐射、电子束和高压灭菌(不建议重复进行高压灭菌)


    3

    APPLICATION


    Recommended Uses (Catheter Processing)

    Tube joining (variable stiffness catheters)

    Balloon bonding

    Shaft lamination

    Tipping

    General reflow (RX ports, etc.) 

    Braid termination

    Masking for coating procedures

    Micro-hose clamps (compliant balloons, etc.)

    Encapsulation, bundling and strain relief


    APPLICATION 1: VARIABLE-STIFFNESS CATHETERS



    Because of its ultrathin walls, PET heat shrink tubing can be used to add stiffness to catheters without significantly adding to the profile of the device. By using different thicknesses of heat shrink tubing along the length of the catheter, you can achieve varying degrees of flexibility for improved control of the device.

    For example, you could use heat shrink tubing with a one-mil wall at the back end of a catheter, a half-mil wall in the middle, a quarter-mil wall near the end, and none at the tip for full flexibility.

    APPLICATION 2: PROTECTIVE COVERING/COATING & BUNDLING


    PET heat shrink tubing is often used to cover laser cut hypo tubes, braided catheter shafts, spring coils,

    radiopaque marker bands, and other parts that requirea thin but very strong outer layer. The tubing provides a smooth transition over sharp edges and can be sealed against fluid leakage. PET heat shrink tubing also can be used to cover tapered structures—such as tapered coils—that cannot easily be covered using conventional techniques. In addition, you can use PET heat shrink tubing to bundle and compress components such as plastic and metaltubing, wires, and optical fibers into the smallest possible

    space. Ultrathin-wall tubing allows you to downsize or add features to a device without increasing the profile.For example, using PET heat shrink tubing to bundle components can free up enough space to add another working channel inside an endoscope. It might even enable you to reduce the size of a device by a whole French size.

    Another use for PET heat shrink tubing is for bundling common plastic and metal tubes to create a quick,

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