Injector
AssigneeAsahi Polyslider Company, Limited
InventorHirokazu Imori
Life of this patent
Estimating the term…
Abstract
There is provided an injector having an improvement in a linear launching profile. The injector of the present invention is used for launching a lancet to provide a pricking. The injector of the present invention comprises a plunger capable of launching the lancet in a pricking direction, an injector housing which surrounds the plunger, and an injector cap capable of being attached and detached with respect to the injector housing. In particular, an inner face of the injector cap is provided with a rib, and the rib and the plunger moving for the pricking are capable of contacting with each other.
Claims17
An injector for launching a lancet to provide a pricking, the injector comprising:
- a plunger capable of launching the lancet in a pricking direction, the lancet being in attachment to the plunger, the plunger comprising a lancet holder;
- an injector housing which surrounds the plunger;
- and
- an injector cap capable of being attached and detached with respect to the injector housing,
- wherein the injector cap comprises a front opening and an inner face, the inner face of the injector cap comprising a first pair of ribs and a second pair of ribs, each of the ribs of the first and second pairs of ribs respectively extending from the inner face to a top edge/apex as viewed in a cross-section of the injector cap taken along a direction orthogonal to the pricking direction, the first pair of ribs opposing one another along a first direction orthogonal to the pricking direction, the second pair of ribs opposing one another in a second direction orthogonal to the first direction and orthogonal to the pricking direction,
- wherein the respective top edges/apexes of the first and second pairs of ribs extend along the pricking direction, and
- wherein the first and second pairs of ribs of the injector cap and the plunger are capable of contacting with each other at a point in time after a launching of the plunger, such that an outer face of a front portion of the plunger makes contact with one or more of the respective top edges/apexes of the first and second pairs of ribs of the injector cap.
An injector for launching a lancet to provide a pricking, the injector comprising:
- a plunger capable of launching the lancet in a pricking direction, the lancet being in attachment to the plunger;
- an injector housing which surrounds the plunger;
- and
- an injector cap capable of being attached and detached with respect to the injector housing, the injector cap having approximately an elliptical shape as viewed in a cross-section of the injector cap taken along a direction orthogonal to the pricking direction,
- wherein the injector cap has a first raised portion at an inner face of the injector cap,
- wherein the injector housing has a pair of banks in an outer face of the housing, and also a second raised portion in a groove provided inside the pair of banks,
- wherein each bank of the pair of banks extends along the pricking direction such that the groove extends between a first end and a second end along the pricking direction, and the second raised portion is located in the groove between the first end and the second end,
- wherein when the injector cap is attached to the injector housing, the first raised portion of the injector cap is capable of sliding on the groove of the injector housing and thereafter riding over the second raised portion,
- wherein with the injector cap attached to the injector housing:
- with rotation of the injector cap about an axis of the injector, the first raised portion of the injector cap is capable of riding over one bank of the pair of banks of the injector housing, and
- wherein a portion of the inner face of the injector cap and a portion of the outer face of the injector housing are capable of making contact with each other to thereby limit rotation of the injector cap with respect to the injector housing within a predetermined range.
Dependencies are inferred from the claim text.