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    Home > Active Ingredient News > Drugs Articles > Introduction of tensile and fatigue performance testing instruments for medical sutures

    Introduction of tensile and fatigue performance testing instruments for medical sutures

    • Last Update: 2022-09-09
    • Source: Internet
    • Author: User
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    WDL-5F suture tensile fatigue testing machine application range: 1.
    Tensile strength: suture tensile fatigue testing machine is mainly used for the tensile and fatigue performance testing of sutures, professionally used to detect the tensile strength of sutures, Tensile strength is defined by the United States State Pharmacopeia (USP) as the small amount of force capable of breaking a single suture
    .

    Tensile strength therefore refers to a specific tensile value, rather than a non-linear interval
    .

    Effective tensile strength refers to the tensile strength of the suture after it has been looped or knotted
    .

    The tensile strength of the same type of suture after knotting is 1/3 of that without knotting
    .

    In general, synthetic sutures have greater tensile strength than gut sutures, and tendon sutures have greater tensile strength than synthetic sutures
    .

    2.
    Elasticity: Elasticity refers to the ability of the suture to return to its original length and shape after being stretched by wound swelling
    .

    Sutures with better elasticity (such as NovafilTM polybutene ester synthetic thread) are not easy to cut the tissue when the tissue is edema, and it will not loosen after the edema subsides, and the wound is not easy to crack
    .

    Surgical suture refers to a special thread used for ligation and hemostasis and suture hemostasis and tissue suture in surgical operations or trauma treatment
    .

    Divided into absorbable lines and non-absorbable lines
    .
    Standard: YY1116 Absorbable Surgical Suture YY0167 Non-absorbable Surgical Suture YY0166 Suture Needle with Thread Technical Parameters: 1.
    Product Specifications: WDL-5F (Single Arm) 2.
    Accuracy, etc.
    : 0.
    5 (within) 3.
    Rated load: 1N 5N 10N 20N 50N 100N 200N 500N 1000N 2000N 3000N 5000N (multiple pieces are available) 4.
    Effective force measurement range: 0.
    1/100-99.
    999% 5.
    Test force resolution, load ± 500,000 yards; internal and external files are not divided, and the full resolution is unchanged
    .

    6.
    Effective test width: 120mm7.
    Effective test space: 800mm8.
    Test speed: 0.
    001~500mm/min (adjustable arbitrarily) 9.
    Speed ​​accuracy: within ±0.
    5% of the indicated value; 10.
    Displacement measurement accuracy: within ±0.
    5% of the indicated value; 11.
    Deformation measurement accuracy: within ±0.
    5% of the indicated value; 12.
    Stress control rate range: 0.
    005%~6%FS/S13.
    13.
    Stress control rate accuracy: when the rate is less than 0.
    05%FS/S, it is within ±1% of the set value; when the rate is greater than or equal to 0.
    05%FS/S, it is within ±0.
    5% of the set value; 13.
    Strain control rate range: 0.
    002%~6%FS/S15.
    Strain control rate accuracy: when the rate is less than 0.
    05%FS/S, it is within ±2% of the set value; when the rate is greater than or equal to 0.
    05%FS/S, it is within ±0.
    5% of the set value; 16.
    Constant force/displacement/ Deformation measurement range: 0.
    5% ~ 99.
    9999% FS17.
    Constant force/displacement/deformation measurement accuracy: when the setting value is less than 10%FS, it is within ±1% of the setting value; when the setting value is greater than or equal to 10%FS, it is within ±0.
    1% of the setting value; 18.
    19.
    Test bench lifting device: fast/slow two speed control, can be jogged; 19.
    Test bench safety device: electronic limit protection 20.Test bench return: manual can return to the initial position of the test at high speed, automatic can return automatically after the test; 21.
    22.
    Automatically stop at a fixed time in the test, automatically stop at a fixed deformation in the test, and automatically stop at a fixed load in the test.
    Overload protection: automatic protection when the maximum load exceeds 10%; 23.
    Automatic diagnosis function, regularly check the measurement system and drive system for overload, overvoltage, overcurrent, overload, etc.
    , and immediately protects when abnormal conditions occur.
    Power supply: 750W24.
    Host weight: 100kg25.
    Power supply voltage: 220V (single phase) 26.
    Host size: 470*400*1510mm Label: Suture Tensile Fatigue Testing Machine
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