Implantable axial-flow type blood pump temperature detection system and method based on fiber bragg gratings
A fiber grating and detection system technology, which is applied in the directions of thermometers, blood pumps, and thermometers with physical/chemical changes, can solve the problems of large interference influence, high price, slow response speed, etc., and achieves good spectral characteristics, simple structure, Reliable effect
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Embodiment 1
[0033] Embodiment 1. Implantable axial flow blood pump temperature detection system based on fiber grating
[0034] The fiber grating-based implantable axial flow blood pump temperature detection system provided in this embodiment, such as figure 1 and figure 2 As shown, it includes: a blood pump, a fiber grating 8 pasted on the axial channel 7 of the blood pump, a motor controller 10 connected to the outlet of the fiber grating 8, a demodulator 14, and a data cable connected to the demodulator 14 Connected computer 13 .
[0035] The blood pump is an axial-flow artificial heart pump. The domestic research is mainly in the past 20 years, and it has a large gap with foreign countries. It is an existing technology. The casing of the flow channel 7, the front guide wheel 2, the impeller 3, and the rear guide wheel 5 arranged in the axial flow channel 7 from left to right, and the permanent magnet brushless motor 4 installed in the inner cavity.
[0036] There are multiple fibe...
Embodiment 2
[0041] Embodiment 2. Implantable axial flow blood pump temperature detection method based on fiber grating
[0042]The method is realized by using the fiber grating-based implantable axial-flow artificial heart pump temperature detection system provided in Embodiment 1, and the steps include:
[0043] Step 1: Slot the brushless motor stator to facilitate the laying of fiber gratings
[0044] The stator coil of the brushless motor is wound on the cylindrical stator, and the wiring of a fiber grating needs to pass through the stator, and the stator needs to be slotted to lead out the optical fiber. Drill a hole 1 mm away from the outer surface of the flow path of the heart pump where the stator is close to, and the diameter of the hole is 1 mm.
[0045] Step 2: Laying of Fiber Bragg Gratings for Implantable Axial Artificial Heart Pump
[0046] The laying feature of the implantable axial-flow artificial heart pump fiber grating lies in the distribution measurement of one line a...
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