Title:
BIOPSY DEVICE AND SPECIMEN SAMPLING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/244711
Kind Code:
A1
Abstract:
This biopsy device comprises a needle (2) that punctures biological tissue and a sheath (3) that covers the needle (2). The needle (2) has a substantially cylindrical distal portion (22) that protrudes out from the distal end of the sheath (3). The distal portion (22) extends in the longitudinal direction from the distal end of the needle (2) toward the proximal end side, and has a plurality of slits (6) that divide the distal portion (22) into a plurality of portions (22a, 22b) in the circumferential direction. The distal portion (22) is configured such that the width of the slits (6) is narrowed by longitudinal-direction movement of the sheath (3) with respect to the needle (2).
Inventors:
KAMADA SHOHEI (JP)
SHIRAISHI TAKUYA (JP)
SHIRAISHI TAKUYA (JP)
Application Number:
PCT/JP2022/020318
Publication Date:
November 24, 2022
Filing Date:
May 16, 2022
Export Citation:
Assignee:
OLYMPUS CORP (JP)
International Classes:
A61B8/00
Domestic Patent References:
| WO2016027523A1 | 2016-02-25 | |||
| WO2014192646A1 | 2014-12-04 |
Foreign References:
| US20070027464A1 | 2007-02-01 | |||
| JP2011024789A | 2011-02-10 |
Attorney, Agent or Firm:
UEDA, Kunio et al. (JP)
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