TWO-HALF AND DUAL-MODE BLADELESS PUNCTURE NEEDLE, AND TROCAR

WIPO Patent Application WO/2018/103570

A1

A two-half and dual-mode bladeless puncture needle (200), and a trocar. The bladeless puncture needle (200) comprises a handle part (202), a distal part (206), and a rod part (204) therebetween; the rod part (204) comprises a central axis (201); the distal part (206) comprises a fixed half (210, 310, 320, 330, 340, 350, 360, 370) and a movable half (240, 410, 420, 430); the fixed half (210, 310, 320, 330, 340, 350, 360, 370) extends from a distal end to a proximal end and is fixed together with the rod part (204) or the handle part (202), while the movable half (240, 410, 420, 430) is movable with respect to the fixed half (210, 310, 320, 330, 340, 350, 360, 370) along the central axis (201); the fixed half (210, 310, 320, 330, 340, 350, 360, 370) comprises a fixed base body (220, 321, 331, 341, 351, 361, 371) and a fixed inclined distal end (221, 312, 322, 332, 342, 352, 362, 372) that is connected with the fixed base body and extends to a fixed top end; the movable half (240, 410, 420, 430) comprises a movable base body (250, 411, 421, 431) and a movable inclined distal end (251, 412, 422, 432) that is connected with the movable base body and extends to a movable top end; the fixed half (210, 310, 320, 330, 340, 350, 360, 370) comprises a sharp separating edge (226, 318, 328, 338, 348, 358, 368, 378) and/or a sharp top end (229, 319, 329, 339, 349, 359, 369, 379), and the movable half (240, 410, 420, 430) comprises a blunt separating edge (256, 418, 428, 438) and a blunt top end (259, 419, 429, 439). The structure of the bladeless puncture needle (200) is favorable to the dispersion of a puncturing force, a tearing force, and an extension force, increases the controllability of a puncture operation, and is helpful for reducing the risk of accidental injury.

WO/2000/054677	A SURGICAL ACCESS DEVICE
WO/2018/008019	APPARATUS FOR DELIVERING ELECTRICAL SIGNALS TO THE HEART
JP2019171064	METHOD AND APPARATUS FOR IDENTIFYING LOCATIONS OF TRANSPONDER-TAGGED OBJECTS USED DURING CLINICAL PROCEDURES, BY MEANS OF TROCAR

ZHU MOSHU (CN)

PCT/CN2017/113726

June 14, 2018

November 30, 2017

Click for automatic bibliography generation  

5R MED TECH CHENGDU CO LTD (CN)

A61B17/34

WO2004112564A2

2004-12-29

CN106510811A	2017-03-22
CN206809317U	2017-12-29
US8657843B2	2014-02-25
CN204723147U	2015-10-28
CN106137331A	2016-11-23

CHENGDU ZHIJISHI PATENT AGENCY (CN)

View/Download PDF      PDF Help

Previous Patent: IMPROVED BLADELESS VISIBLE PUNCTURE NEEDLE

Next Patent: PUNCTURE NEEDLE COMPRISING DAMAGE-FREE PROTECTION DEVICE