TROCAR AND LOW HEIGHT TYPE LENS OPTICAL SYSTEM

WIPO Patent Application WO/2017/099153

A1

A trocar 1 according to the present invention comprises a pipe portion 2 for inserting a medical instrument into a human body. The pipe portion 2 includes a pipe portion outer tube 21 and a pipe portion inner tube 22, wherein in a distal notch of the pipe portion inner tube 22, a camera unit 5 is shaft supported to be freely rotatable between a deployed state in which the camera unit 5 rotates outside of the pipe portion 2 and a stored state in which the camera unit 5 is stored in the pipe portion 2. A coil spring that biases the camera unit 5 into the deployed state is housed in the pipe portion inner tube 22. The pipe portion outer tube 21 is externally inserted on the pipe portion inner tube 22 so as to be slidable in the axial direction, and the pipe portion outer tube 21 is adapted to store the camera unit 5 in the pipe portion 2 by resisting the biasing force of an elastic member in a state of sliding toward a tip of the pipe portion 2.

FUJII TAKAHARU (JP)
SAOTOME TAKASHI (JP)
TAOKA HIROKI (JP)

PCT/JP2016/086453

June 15, 2017

December 07, 2016

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KYOCERA OPTEC CO LTD (JP)

A61B1/04; A61B1/00; A61B17/34

WO2014203720A1	2014-12-24
WO2015159592A1	2015-10-22
WO2013073061A1	2013-05-23
WO2013021739A1	2013-02-14

JP2014132979A	2014-07-24
JP2015136460A	2015-07-30
JP2015073663A	2015-04-20
JP2012050487A	2012-03-15
JPH07327916A	1995-12-19
JP2016150216A	2016-08-22
JP2016016053A	2016-02-01
JP2013046789A	2013-03-07
JP2006167475A	2006-06-29
JP2014132979A	2014-07-24

See also references of EP 3387982A4

FUKAI, Toshikazu (JP)

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