Guide wire tension testing device

Abstract

The invention relates to the field of medical instruments for interventional therapy and particularly relates to a guide wire tension testing device. The device comprises a rack, a first clamping mechanism used for clamping a guide wire, a second clamping mechanism used for clamping the guide wire and a weighting mechanism capable of adjusting tension on the first clamping mechanism, wherein the connecting line is used for connecting the weighting mechanism and the first clamping mechanism; the guide mechanism is used for guiding the connecting line; the first clamping mechanism, the second clamping mechanism and the guide mechanism are all arranged on the rack in the radial direction, the first clamping mechanism is movably arranged on the rack so that the first clamping mechanism can move on the rack in the radial direction, and one end of the connecting line is connected to the first clamping mechanism; the other end of the connecting wire is connected to the weighting mechanism after passing through the wire guiding mechanism so that the force of the weighting mechanism can be converted into the pulling force of the first clamping mechanism. The device can test toughness of the guide wire; when the device is used for testing toughness of the guide wire, operation is convenient, and the device is more suitable for large-scale popularization.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a guide wire tension testing device. Background technique [0002] The guide wire is a basic device for modern endovascular treatment. In modern medicine, such operations as angiography, thrombectomy, stent placement, and fallopian tube recanalization are all inseparable from the application of the guide wire. Interventional therapy is a technology that introduces specific medical devices such as guide wires and catheters into human lesion parts under the guidance of medical imaging equipment, and diagnoses and treats them. Guide wire is a common instrument used in interventional surgery. The function of guide wire is to support, guide and position other instruments. With the rapid development of interventional surgery, people have raised more and more questions about the performance of guide wire. strict requirements. In order to meet the test requirements, a guide wire perf...

AI Technical Summary

Problems solved by technology

In order to meet the test requirements, the prior art uses a guide wire performance test device for testing, but most of the existing guide wire performance test devices are used to test the friction and other properties of the guide wire, and there is a lack of devices for testing the toughness of the guide wire.

[0003] For example, the reference document 1 with the patent application number "201720270496.3" relates to a guide wire performance testing machine, which includes a frame on which a console, a lifting frame and test components are arranged; the lifting frame is also provided with a tension sensor, The lower end of the tension sensor is connected with a clamping assembly, and the product to be tested is arranged on the clamping assembly, and the product to be tested cooperates with the testing assembly; the guide wire performance testing machine of the present invention is driven by the lifting assembly to lift the clamping assembly, so that the product to be tested Cooperate with the test components to conduct down-insertion and pull-up tests, and test the mechanical properties of the products to be tested. The lifting components are automatically controlled by the system, and the system automatically records the test data. Although the comparison document 1 states that its technical solution is to be tested The mechanical properties of the product are tested, but it is actually a test for the tensile friction of the guide wire, not for the toughness of the guide wire

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