Device for measuring conduit interventional force and torque in cardiovascular interventional operation in real time

Abstract

The embodiment of the invention discloses a device for measuring conduit interventional force and torque in a cardiovascular interventional operation in real time. The device comprises an outer support, an inner shaft, force sensors, bolts and nylon fasteners, wherein each force sensor is adhered to the inner circumference of the outer support; the inner shaft is placed in the outer support with the force sensors; the outer wall of the inner shaft is in interference contact with each steel ball of each force sensor; male end and female end nylon fasteners suitable for winding a thumb or a forefinger are cut; holes are formed in at the bottom ends of the male end and female end nylon fasteners in a cutting way to enable the bolts to pass through; the bolts pass through a female end thread gluing, an inner shaft screw hole and a male end thread gluing and are screwed by using nuts; and the nylon fasteners are used to adapt to the sizes of different fingers of operators, so that the operator wears the device to clamp a conduit in the operation to ensure that the conduit does translation or twisting movement. By using the device, stress information in an operation process can be monitored, and the safety of the operation is improved; and by acquiring the operating force and the operating torque of an experienced physician, the device provides quantitative evaluation standards for a virtual training system of the cardiovascular interventional operation at the same time.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a device for real-time measurement of catheter intervention force and moment in cardiovascular intervention operations. Background technique [0002] At present, minimally invasive interventional surgery in the medical process has become the main method of clinical treatment in hospitals because of its characteristics of no surgery, small trauma, quick recovery, and good effect. The operation process of minimally invasive interventional surgery is: A small opening is made in other parts of the body, and then the doctor enters the guide wire, catheter, etc. from the blood vessels here, and then the doctor rotates them by hand while sending them in, and reaches the part that needs treatment by hand feeling and experience. Minimally invasive interventional catheters greatly reduce the doctor's perception of the interaction force between surgical instruments and human tis...

AI Technical Summary

Problems solved by technology

[0003] In the process of the above-mentioned doctor sending the catheter and the guide wire, the guide wire catheter has only two degrees of freedom, one is rotation, and the other is forward and backward propulsion movement. We need to perform force and moment calculations on these two degrees of freedom. measurement, so as to monitor the force, but the existing technical solutions have little research on the force and moment of the guide wire catheter intervention process, and the existing technical solutions lack effective means and devices to measure the catheter intervention force and moment in real time, thereby increasing surgical risk

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