Real-time catheter intervention information measuring device in cardiovascular interventional operation

Abstract

The invention discloses a real-time catheter intervention information measuring device in a cardiovascular interventional operation. The information measuring device comprises a six-dimensional force sensor, a linear encoder and an angle photoelectric encoder. In the operation, a catheter penetrates through the six-dimensional force sensor, and is connected to a force bearing end of the six-dimensional force sensor in a clamping manner through a clamping device; when an operator clamps the catheter to contact with a vessel wall through a clamping shaft, the resistance and the resistance moment between the catheter and the vessel wall can be measured in real time through the six-dimensional force sensor; when the operator operates the catheter to rotate axially through the clamping shaft, the rotary angle can be measured through the angle photoelectric encoder; and when the operator operates the catheter to move forwards or backwards through the clamping shaft, the number of grating pulse is counted by a reading head to measure the displacement in real time. By the information measuring device, information monitoring during the operation can be realized, safety of the operation can be improved, and quantitative data are provided for evaluating a virtual operation training system.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a device for measuring real-time catheter intervention information in cardiovascular interventional operations. Background technique [0002] At present, minimally invasive interventional surgery in the medical process has become the main means of clinical treatment in hospitals because of its characteristics of no surgery, small trauma, quick recovery, and good effect. The operation process of cardiovascular minimally invasive interventional surgery is: A small opening is made in the thigh or other parts of the body, and then the doctor inserts the guide wire, catheter, etc. through 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. The soft minimally invasive interventional catheter greatly reduces the doctor's perception of the interaction force between surgic...

AI Technical Summary

Problems solved by technology

[0003] In the process of the above-mentioned doctor sending the catheter and guide wire, the guide wire catheter has two degrees of freedom, one is rotation, and the other is forward and backward propulsion movement. We need to carry out various information on these two degrees of freedom. Measurement, including the measurement of force and moment, and the measurement of displacement and rotation angle, so as to monitor the operation process, but there are few researches on the information measurement of the guide wire catheter intervention process in the existing technical solutions, and there is no effective method in the existing technical solutions. Means and devices to measure various information during catheter intervention

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