| CPC G01N 3/20 (2013.01) [A61M 25/0147 (2013.01); G01N 3/08 (2013.01); A61M 2209/02 (2013.01); G01N 3/02 (2013.01); G01N 3/04 (2013.01); G01N 3/068 (2013.01); G01N 3/32 (2013.01); G01N 2203/0005 (2013.01); G01N 2203/0017 (2013.01); G01N 2203/0023 (2013.01); G01N 2203/04 (2013.01); G01N 2203/0641 (2013.01)] | 9 Claims |
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1. A medical catheter testing device, characterized in that it comprises: a machine platform (1), a catheter clamping assembly (2) linearly arranged on the machine platform (1), a first visual detection assembly (3) arranged in parallel on one side of the catheter clamping assembly (2), a wire tension detection assembly (4) arranged at a wire pulling end of a catheter (10), and a bending force detection assembly (5) arranged on one side of a bending section (10.2) of the catheter (10) and a second visual detection assembly (6) located at a second end of the catheter (10),
wherein the machine platform is also provided with a PLC controller (7) and a data acquisition and analysis module for receiving test results and providing control signals, and the PLC controller (7) is connected to a control panel (8) and a display panel (9);
wherein the catheter clamping assembly (2) includes at least two clamping units (2.1) arranged along an axial direction of a straight section (10.1) of the catheter (10), and a clamping unit (2.1) positions the catheter (10) on the machine platform (1) in a linearly extended posture;
wherein the wire tension detection assembly (4) includes two tension units (4.1) arranged at the wire pulling end of the catheter (10), a tension meter (4.2) connected to a tension unit (4.1) in sequence, and a wire drawing assembly (4.3);
wherein the first visual detection assembly (3) is movably arranged in a direction parallel to the axis of the straight section (10.1) of the catheter (10), and monitors and records surface features of the catheter (10) under test conditions;
wherein the bending force detection assembly (5) is arranged on one side of the bending section (10.2) of the catheter (10), and docks with the bending section (10.2) after bending to obtain a bending force of the bending section (10.2) under a current wire pulling stroke or tension value;
wherein the second visual detection assembly (6) is axially arranged at an end facing the catheter (10), and monitors and feeds back the bending section (10.2), and the bending force detection assembly (5) is arranged facing the second visual detection assembly (6) to obtain a reading of the bending force of the bending section (10.2);
wherein the control panel (8) is electrically connected to the wire tension detection assembly (4), and controls and feeds back a current tension value and wire pulling stroke of the tension unit (4.1);
wherein the display panel (9) is electrically connected to the first visual detection assembly (3) and the second visual detection assembly (6), and obtains, displays and records a current tension value and a bending angle, bending radius and bending force under a wire pulling stroke state, as well as a current posture of the bending section (10.2);
wherein the bending force detection assembly (5) includes a universal bracket (5.1), a metering dial (5.2) movably arranged on the universal bracket (5.1) and a force measuring probe (5.3) extending from the metering dial (5.2), wherein the force measuring probe (5.3) is arranged on one side of a linear direction of the catheter (10), and receives the bending section (10.2) of a bent catheter (10) to detect a bending force of a bending section (10.2) of the catheter (10).
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