Title:
正確な投与制御機構及び薬物送達用注射器
Document Type and Number:
Japanese Patent JP6446714
Kind Code:
B2
Abstract:
A dose control mechanism for a syringe includes a plunger having a coarse pitch screw on its exterior surface, a housing having a corresponding coarse pitch guide along the interior surface of the housing, a screw having a fine pitch screw which interfaces with a fine pitch nut of an adapter, wherein the plunger has an internal annular space within which screw at least partially resides. An accurate dose drug delivery syringe includes such a dose control mechanism, a barrel, a plunger seal, and a barrel adapter assembly having a barrel tip and a needle. The syringe may be a fill-at-time-of-use syringe, a pre-filled syringe, or a safety syringe having integrated needle retraction or needle sheathing safety features, or a combination thereof. Methods of assembly, manufacturing, and operation are similarly disclosed.
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Inventors:
Shetty, Goutum N.
Castania, Row
Castania, Row
Application Number:
JP2017160466A
Publication Date:
January 09, 2019
Filing Date:
August 23, 2017
Export Citation:
Assignee:
UNL Holdings LLC
International Classes:
A61M5/315; A61M5/31
Domestic Patent References:
| JP2002501790A | ||||
| JP9225031A |
Foreign References:
| US6221053 | ||||
| WO2011068531A1 |
Attorney, Agent or Firm:
Ikeda adult
Junichiro Sakamaki
Masakazu Noda
Kazuhiro Yamaguchi
Junichiro Sakamaki
Masakazu Noda
Kazuhiro Yamaguchi