Title:
PUNCTURE NEEDLE
Document Type and Number:
WIPO Patent Application WO/2022/158405
Kind Code:
A1
Abstract:
A puncture needle (10) has: an outer needle (16) having a lumen (16b) passing therethrough in the axial direction; an outer needle hub (18) joined to a base end part of the outer needle (16); an inner needle (20) inserted into the lumen (16b) of the outer needle (16) via the outer needle hub (18); a switching mechanism (23) for switching, by displacing the inner needle (20) in the axial direction, between a first state in which the needle tip (10a) is sharp and a second state in which the needle tip (10a) is blunt; and a rocking mechanism (25) for maintaining the position of the inner needle (20).
Inventors:
ISHIDA MASAHIRO (JP)
Application Number:
PCT/JP2022/001260
Publication Date:
July 28, 2022
Filing Date:
January 17, 2022
Export Citation:
Assignee:
TERUMO CORP (JP)
International Classes:
A61M5/32
Domestic Patent References:
| WO2020016981A1 | 2020-01-23 |
Foreign References:
| JP2009261589A | 2009-11-12 | |||
| JP2009201539A | 2009-09-10 | |||
| JP2002253670A | 2002-09-10 | |||
| JPH02143947U | 1990-12-06 | |||
| JP2017042226A | 2017-03-02 | |||
| US20040176730A1 | 2004-09-09 | |||
| CN2824854Y | 2006-10-11 | |||
| US10702263B2 | 2020-07-07 | |||
| JP3227041U | 2020-07-30 | |||
| JP2020127607A | 2020-08-27 |
Attorney, Agent or Firm:
CHIBA Yoshihiro et al. (JP)
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