JPS6132700Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an eye drop container used for instilling liquid eye drops.

This type of container generally has a container body made of an elastic material so that it can be squeezed, and the container body is squeezed to drip the eye drops through a small-diameter drip hole.
With this configuration, there is an inconvenience that the amount of eye drops to be injected is not constant because the amount of squeezing of the container differs each time an infusion is made and is not constant.

The object of the present invention is to provide an eye drop container that allows a constant amount of eye drops to be dripped at all times by moving the container body containing the drug solution in a fixed stroke relative to the base cylinder to drip eye drops under pressure.

Embodiments of the present invention will be described below with reference to the accompanying drawings. In the figure, reference numeral 1 denotes a base cylinder, the upper end of which is open, and a small-diameter inner cylinder 3 coaxially integrally provided with an inward flange 2 at the lower end opening.
A locking protrusion 4, a locking protrusion 5, and an inward flange 6 are provided on the inner peripheral surface at the upper end, the lower part, and the lower end.
Further, threads 7 are provided around the outer peripheral surface of the lower half.

Reference numeral 8 denotes a movable container body for storing eye drops, the upper half of which is fitted into a large diameter portion having approximately the same diameter as the base tube 1, and the lower half of which is fitted into the base tube 1 so as to be vertically movable. The opening of the movable container body 8 is shaped like an ordinary container turned upside down, with a fitting protrusion 9 provided around the outer circumferential surface of the opening. The department includes
A holding cylinder 11 with an opening 10 in the center is attached to a U on the periphery.
It is fitted and attached using a letter-shaped clamping wall. That is,
A groove is provided around the inner peripheral surface of the outer peripheral wall of the clamping wall, and by fitting the groove into the protrusion 9, the holding cylinder 11 is firmly attached to the lower end opening of the movable container body 8. , and the holding cylinder 11 is fitted into the inner cylinder 3 so as to be movable up and down.

Next, 12 is a cylindrical drip hole member with a bottom, and at the bottom,
Normally, the liquid does not drip, but when the liquid is pressurized, the liquid dripping hole 13 is small enough to allow the liquid to drip, and the upper half inscribed in the holding cylinder 11 is made thinner, and a stepped part is formed in the middle of the inner peripheral surface. An outward flange 14 is formed, and is fixed to the inner cylinder 3 by interposing it between the inward flange 6 and the protrusion 5. A coiled spring 15 is interposed between the step portion and the holding cylinder 11, and the spring 15 always urges the movable container body 8 upward.

Here, the movable container body 8 is pushed upward by the spring 15, but its upper limit position is limited by the protrusion 4 of the inner cylinder 3 via the holding cylinder 11. It is arranged so that it can move up and down within a stroke range of l.
16 is a cap screwed onto the thread 7.

In the above configuration, in order to instill eye drops, the base tube 1
, put the fingers of the gripped hand on the top of the movable container body 8, and push the container body 8 downward against the spring 15.
In other words, it is sufficient to move it until it comes into contact with the base cylinder 1.
Then, the eye drops in the container are pressurized by the movement of the container body 8, so that they drip from the droplet hole 13. As described above, in the container of the present invention, the container body 8 is moved, unlike conventional containers in which the container body is squeezed, and this movement has a constant stroke l, so that a fixed amount of eye drops can be instilled at all times. Therefore, the stroke l
By making the size of the eye drops appropriate, it is possible to always instill an appropriate amount of eye drops. In addition, in the container of the present invention, eye drops cannot be dispensed unless the movable container body 8 is moved against the spring 15, so unlike conventional containers, even if the container is grasped and pressed against it carelessly. Since there is no dripping, there is no need to waste eye drops. In addition, in the above embodiment, the spring 15
is interposed between the stepped portion of the inner peripheral surface of the drip hole member 12 and the holding cylinder 11, and this is inserted between the outward flange 14 of the drip hole member 12 and the clamping wall of the holding cylinder 11, as shown at 15'. Interventions may be used.

[Brief explanation of the drawing]

The accompanying drawing is a front view showing the right half of the eye drop container of the present invention in longitudinal section. 1...Base cylinder, 3...Inner cylinder, 8...Movable container body,
11... Holding tube, 12... Dripping hole member, 13...
Droplet hole, 15... spring, 16... cap.

Claims (1)

[Claims for Utility Model Registration] Inner cylinder 3 with locking protrusions 4 provided on the inner peripheral surface of the upper end
a base cylinder 1 coaxially disposed inside the lower end opening by an inward flange 2;
A movable container body 8 for storing a medicinal solution, in which the lower half has a step-shaped small diameter part, and the small diameter part is fitted into the base cylinder 1, and the opening at the lower end of the lower half is fitted into the inner cylinder 3 so as to be vertically movable. A droplet hole 13 is formed in the lower bottom, and the peripheral wall of the upper end opening is inscribed in the mouth of the movable container body 8, and is locked and fixed to the lower part of the inner cylinder 3 via an outward flange 14 provided on the outer peripheral surface. A spring 15 is provided between the drip hole member 12 and the opening of the movable container body 8 and displaces the container body 8 upward from the base cylinder 1 by an appropriate stroke l. container.