Title:
安全スタイレット
Document Type and Number:
Japanese Patent JP5508277
Kind Code:
B2
Abstract:
A stylet for insertion within a cannula interior of a needle is disclosed. The stylet includes a solid elongated shaft having a proximal end adapted for engagement with a needle hub, and a distal end having a surface modified profile. The surface modified profile increases the penetration force required to penetrate human skin. The ratio of the penetration force of a stylet having an unmodified distal end to the stylet having a surface modified profile is at least 1:1.4, or greater. The surface modified profile may be a roughened surface, a buffed surface and/or a blunted surface. The surface modified profile may include a yieldable material disposed over at least a portion of the distal end. A needle assembly having a stylet having a surface modified profile is also disclosed.
Inventors:
Anika Weiman
Michael Meehan
Christina Daligo
Doug Tucody
Michael Meehan
Christina Daligo
Doug Tucody
Application Number:
JP2010534974A
Publication Date:
May 28, 2014
Filing Date:
November 21, 2008
Export Citation:
Assignee:
BECTON, DICKINSON AND COMPANY
International Classes:
A61M25/06
Domestic Patent References:
| JP5123331A | ||||
| JP55078343U | ||||
| JP2006223653A | ||||
| JP2004208971A | ||||
| JP7250840A | ||||
| JP1146559A |
Foreign References:
| US5257980 | ||||
| US4721506 |
Attorney, Agent or Firm:
Yoshikazu Tani
Kazuo Abe
Kazuo Abe