Cartilage particle harvesting device
A technology for obtaining devices and particles, which is applied in the field of medical devices, can solve the problems of difficult control of particle size, low proliferative activity of chondrocytes, and high labor intensity, and achieve the effects of strong division and proliferation, saving time for preparation, and convenient operation
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[0027] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0028] Such as figure 1 As shown, it includes a drill bit 1 for cutting cartilage particles, a collection system for collecting cartilage particles, a motor 5 that drives the drill bit 1 to rotate at high speed, and a negative pressure protective sleeve 2 set on the drill bit 1. The front end of the drill bit 1 It is a spherical or conical cutting head 3, and the rear end is a grinding drill rod 4. The surface of the cutting head 3 is provided with a wedge-shaped serrated blade 16 arranged in a spiral, that is, the thickness of the wedge-shaped serrated blade 16 is determined by the cutting head 3 and the grinding drill rod. 4 to the front end of the wedge-shaped sawtooth blade 16 gradually decreases to form a cutting portion to cut the cartilage, and the sawtooth 21 also has a cutting effect on the cartilage to further reduce the cartilage...
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