Flexible shaft structure insulating wear particles by perfusion

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United States of America Patent

PATENT NO 11872383
SERIAL NO

17078841

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The present invention discloses a flexible shaft structure insulating wear particles by perfusion, which includes a flexible transmission shaft, a proximal holder is provided at one end of the flexible transmission shaft, a distal holder is provided at the other end of the flexible transmission shaft, a constraint insulator and an outer sheath tube are provided outside the flexible transmission shaft, and the constraint insulator sequentially includes an inner constraint layer, an insulation layer and an outer constraint layer from inside to outside; a perfusion inflow annular cavity is formed between the outer constraint layer and the outer sheath tube and between the outer constraint layer and the insulation layer, respectively, and a static sealed inner cavity is formed between the inner constraint layer and the insulation layer and between the inner constraint layer and the flexible transmission shaft, respectively; the proximal holder is provided with a perfusion inlet pipeline communicated with the perfusion inflow annular cavity and a perfusion exhaust pipeline communicated with the static sealed inner cavity; and the distal holder is provided with a perfusion insulation cavity. According to the present invention, the generated wear particles can be effectively insulated, the stability and consistency of perfusion flow of the product are improved, and the problems of vibration and noise of the flexible shaft under high-speed rotation are solved.

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Patent Owner(s)

Patent OwnerAddress
FORQALY MEDICAL(SHANGHAI) CO LTDROOM 409-412 NO 2 LANE 166 TIANXIONG RD PUDONG NEW AREA SHANGHAI

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Tang, Zhirong Shanghai, CN 29 236
Zheng, Qiwen Shanghai, CN 8 4

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