Title:
A reusable puncture needle unit, a reusable puncture needle device, and the safe tube for these
Document Type and Number:
Japanese Patent JP6099612
Kind Code:
B2
Abstract:
A biopsy needle unit includes a biopsy needle and an elastically deformable safety tube for partially covering the biopsy needle inserted to a lumen extending in a longitudinal direction. A marker is arranged on the biopsy needle at a position protruding from an end portion of the safety tube on an opposite side of a needle tip of the puncture needle when the needle tip portion is accommodated in the lumen. The safety tube has portions in which the lumen is curved at least partially with respect to the longitudinal direction so that the safety tube is elastically deformed due to contact between an inner circumferential face of the lumen and an outer circumferential face of the biopsy needle when the biopsy needle is inserted to the lumen to cause frictional resistance between the inner circumferential face of the lumen and the outer circumferential face of the biopsy needle.
Inventors:
Bunyama Hideo
Application Number:
JP2014215120A
Publication Date:
March 22, 2017
Filing Date:
October 22, 2014
Export Citation:
Assignee:
Bunyama Hideo
International Classes:
A61B5/15; A61B10/02; A61M5/32
Domestic Patent References:
| JP2012519511A | ||||
| JP2011504401A | ||||
| JP2014514010A |
Attorney, Agent or Firm:
Yoshiaki Nishiyama
Akihiko Umeda
Akihiko Umeda