ELECTRODELESS VARIABLE ANGLE SIDEWAYS DRILL GRINDING HEAD AND DRIVE COMPONENTS THEREOF - CHONGQING XISHAN SCIENCE & TECHNOLOGY CO LTD

Title:

ELECTRODELESS VARIABLE ANGLE SIDEWAYS DRILL GRINDING HEAD AND DRIVE COMPONENTS THEREOF

Document Type and Number:

WIPO Patent Application WO/2015/078229

Kind Code:

A1

Abstract:

Disclosed are an electrodeless variable angle sideways drill grinding head and drive components thereof. The electrodeless variable angle sideways drill grinding head comprises a knife tube assembly and a grinding head (1) installed at the front end of the knife tube assembly, wherein the grinding head (1) can be driven in a pitching motion and by autorotation. The rear end of the grinding head (1) is hinged to the inner knife tube (11) in a circumferential-direction transmission mode, and the inner knife tube (11) is at least located at a position where the front end thereof is provided for being hinged to the rear end of the grinding head (1) and a flexible transmission segment (13) capable of transmitting torque. The drill grinding head achieves the transmission and pitching motion between the inner knife tube (11) and the grinding head (1) by using a hinge structure, wherein the flexible drive structure is used to compensate the axis deviation resulting from the pitching motion and transmission drive, thus making the drive structure simple, the drive chain short and being conducive to the stable control. The drill grinding head can make pitching and circumferential positional adjustments to the grinding head (1) in order to achieve direction and orientation adjustments on grinding head (1), and this has better a adaptability and accuracy for the surgical site, thereby improving the efficiency of surgery.

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Inventors:

GUO YIJUN (CN)
LIU CHANGFENG (CN)
ZHANG JINBIN (CN)

Application Number:

PCT/CN2014/087552

Publication Date:

June 04, 2015

Filing Date:

September 26, 2014

Export Citation:

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Assignee:

CHONGQING XISHAN SCIENCE & TECHNOLOGY CO LTD (CN)

International Classes:

A61B17/16; A61B17/32; A61C3/00

Domestic Patent References:

WO2012153319A1	2012-11-15
WO1999021686A1	1999-05-06

Foreign References:

CN103767759A	2014-05-07
US20110152867A1	2011-06-23
US8221424B2	2012-07-17
CN1585623A	2005-02-23
US8052690B2	2011-11-08
US20090023988A1	2009-01-22

Other References:

See also references of EP 3000417A4
None

Attorney, Agent or Firm:

BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)
北京三友知识产权代理有限公司 (CN)

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