US 8,801,679 B2 · Medication administering device

Abstract

A medication administering device has mounted thereto a preparation syringe containing a preparation and comprises a substantially cylindrical syringe cover that supports the preparation syringe on the inner peripheral face side, a piston that presses on the rear end of the preparation syringe, and a piston case that surrounds the piston, that guides the outer peripheral face of the syringe cover in the direction of the piston on the substantially cylindrical inner peripheral face side, and that is mounted in a state in which the syringe cover is removable. The medication administering device comprises a syringe holder that guides the outer peripheral face of the preparation syringe in the direction of the piston on the cylindrical inner peripheral face side, and whose outer peripheral face is removably fitted together with the inner peripheral face of the syringe cover. A medication administering device comprises a syringe cover for mounting a preparation syringe to a main body, and has uneven faces of different angles of inclination on the end face of the syringe cover.

Claims17

Dependent claims

A medication administering device for having a preparation syringe containing a preparation mounted thereto, and for administering the preparation to a living body, said device comprising:

a substantially cylindrical syringe cover having an outer peripheral face, a substantially cylindrical inner peripheral face side and being configured to support the preparation syringe on the substantially cylindrical inner peripheral face side of the substantially cylindrical syringe cover;
a substantially cylindrical piston configured to press on a rear end of the preparation syringe;
a piston case surrounding the substantially cylindrical piston, being configured to guide the outer peripheral face of the substantially cylindrical syringe cover in the direction of the substantially cylindrical piston on the substantially cylindrical inner peripheral face side, and being configured to be mounted in a state in which the syringe cover is removable;
a housing having an inner peripheral surface surrounding the piston case, and being configured to move the piston case forward in a puncture direction along the inner peripheral surface along with the syringe cover when the rear end of the preparation syringe is pushed by the piston;
and
a syringe cover detector configured to detect if the syringe cover has been mounted to the piston case.

3 more elements

A medication administering device for having a preparation syringe containing a preparation mounted thereto, and for administering the preparation to a living body, said device comprising:

a substantially cylindrical syringe cover having a cylindrical inner peripheral face side, an inner peripheral face, and being configured to support the preparation syringe on the inner peripheral face side of the substantially cylindrical syringe cover;
a piston configured to press on a rear end of the preparation syringe;
a syringe holder configured to surround the piston at a specific position, being configured to guide an outer peripheral face of the preparation syringe in the direction of the piston on the cylindrical inner peripheral face side, and having an outer peripheral face configured to be removably fitted together with the inner peripheral face of the syringe cover, and
a housing covering the syringe cover, the piston, and the syringe holder inside so that the preparation syringe is capable of being fixed in the inner peripheral face side of the syringe cover, and the syringe cover is disposed on the outer peripheral side of the syringe holder in a when the syringe cover is attached to the syringe holder having the preparation syringe,
wherein the syringe holder has an inner peripheral face side and an outer periphery limiting protrusion on the inner peripheral face side, the outer periphery limiting protrusion being configured to limit the position of the outer peripheral face of the preparation syringe, and the syringe holder is configured to form a space between the outer peripheral surface of the preparation syringe and the inner peripheral surface of the syringe cover, the space being formed so that the syringe holder is inserted from the rear end of the preparation syringe.

2 more elements

Dependencies are inferred from the claim text.

Medication administering device

Life of this patent

Medication administering device

Life of this patent

Abstract

Claims17