Cardiac signal simulating device
A signal simulation, heart technology, applied in radiological diagnostic testing/calibration, computerized tomography scanner, echo tomography, etc., can solve the problems of cumbersome design, lack of ability to change motion parameters, and inability to directly simulate heart motion, etc., to achieve improved The effect of efficiency and accuracy
Pending Publication Date: 2018-07-17
TIANJIN UNIV
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Problems solved by technology
[0003] For cardiac dynamic phantoms, these methods are complex to operate and cumbersome to design, some of which cannot directly simulate the way the heart moves, and are not innovative, and some methods do not have the function of changing motion parameters and input signals
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[0012] The present invention will be further described below in conjunction with the accompanying drawings.
[0013] like figure 1 As shown, the present invention protects a heart signal simulation device, which includes the following parts: a modal vibrator 1, a fastening platform 3 and a liquid storage bellows 2, and the basic working principle of the modal vibrator is that the current-carrying conductor The magnetic field is subject to electromagnetic force, and there are rare earth NdFeB permanent magnet materials inside to provide a stable magnetic field, so changes in the direction and magnitude of the input current will cause different displacement changes of the vibrating head as the mover. In this embodiment, the modal exciter 1 is MS-20 from YMC Company, which has the advantages of large displacement (±5mm), sufficient output (≥20N), rapid response, small size, light weight, and wide frequency range (0-6KHz ), reasonable structure and high reliability.
[0014] The...
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The invention discloses a cardiac signal simulating device. The cardiac signal simulating device comprises a modal vibration exciter, a fastening platform and a liquid storage corrugated pipe, whereinthe liquid storage corrugated pipe is composed of a spring, a cavity, a corrugated pipe upper plug and a corrugated pipe lower plug, the spring is used for simulating the muscle tissue of the heart,the cavity is used for simulating the inner cavity of the heart, the corrugated pipe lower plug is in threaded match connection with a movable sub terminal of the modal vibration exciter, the corrugated pipe upper plug is used for connecting with a pulse liquid pipeline, through the fastening platform, the modal vibration exciter and the liquid storage corrugated pipe are fixed, so that the freedom of motion of the liquid storage corrugated pipe is limited, and the liquid storage corrugated pipe only moves in the pull-up and compressing directions; when the modal vibration exciter works, the corrugated pipe lower plug transmits vertical motion displacement to the spring, so that the spring is compressed or stretches, the volume in the cavity changes passingly, liquid stored in the liquid storage corrugated pipe moves through extrusion and sucking-back, thus blood movement is simulated, and meanwhile, the corresponding swelling and shrinking deformation of the atriums and the ventriclesare simulated.
Description
technical field [0001] The invention belongs to a heart signal drive system, in particular to a heart signal simulation device. Background technique [0002] In recent years, phantoms have mostly focused on morphological resolution, but most of the organs of the human body are moving, but in fact they are partially controlled. Therefore, an effective and reasonable CT dynamic phantom is of great importance for us to study the quality of CT diagnostic images. significance. However, there are many kinds of power control parts in the current CT dynamic phantom, including stepping motor, single-chip microcomputer technology, programming control and other methods. [0003] For cardiac dynamic phantoms, these methods are complicated to operate and cumbersome in design, some cannot directly simulate the way of heart motion, and are not innovative, and some methods do not have the function of changing motion parameters and input signals. Contents of the invention [0004] The pu...
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IPC IPC(8): A61B6/03
CPCA61B6/032A61B6/58
Inventor 赵立涛邝丽娜陈金磊王学民冯远明周鹏
Owner TIANJIN UNIV