JPH0713697Y2 - Medical drip - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a medical drip device for ejecting a medicinal or quasi-medical liquid containing a dental material, particularly a dental material excited by visible light. The present invention relates to an infusion device suitable for

(Prior Art) Conventionally, an instrument for extracting various drug solutions in a drip form has been used in the medical field, particularly in the dental field. For example, an infusion device that has been conventionally used is composed of a transparent plastic container for containing a drug solution, a plastic cap, and an elongated drip nozzle attached to the cap.

Further, the visible light polymerizable material that has been conventionally used as a dental material is obtained by extracting an appropriate amount of a polymerization monomer, a powder filler, and a curing agent (a polymerization initiator and a polymerization accelerator) from each container and mixing them in a paste or liquid form. Then, it is applied to a desired tooth and then cured by irradiation with light. As a curing agent for such a dental material, a visible light sensitizer (polymerization initiator) and an amine (polymerization accelerator) are usually used.

However, since the above-mentioned polymerization initiator is excited by visible light, it is usually stored in a black opaque container that blocks visible light from the viewpoint of storage stability.

(Problems to be Solved by the Invention) However, such a conventional drip device has poor handleability when the doctor holds the container body by hand and applies the drug solution to a desired tooth. In addition, since the visible light sensitizer is contained in a black opaque container, it is impossible for the dentist or dental hygienist to check the remaining amount, and the material runs out during use. I got it.

Therefore, an object of the present invention is to provide an infusion device that is easy to operate and that allows the amount of the remaining drug solution contained in the container to be visually checked.

(Means for Solving the Problems) The present invention provides a flexible tubular container having an opening at the upper end, a cap liquid-tightly connected to the upper portion of the tubular container and having a tubular channel at the tip, A drip device for medical use consisting of a holder connected to the lower part of a tubular container, wherein the tubular container is 400 to 500.
A label having a slit-shaped opening on the outer peripheral wall of the tubular container, wherein the transmittance of light having a wavelength of 2.0 nm is 2.0% or less, and the transmittance of light having a wavelength of 550 to 600 nm is 7.0 to 25.0%. Alternatively, it is a medical drip instrument characterized by being coated with a light-shielding ink.

(Operation) The medical infusion device of the present invention is excellent in handleability because the holder is attached to the lower portion of the cylindrical container. Furthermore, the contents can be confirmed by using a cylindrical container made of a colored resin having a specific light transmittance, and further, the outer peripheral wall of the cylindrical container is covered with a label having slit-shaped openings or a light-shielding ink. Therefore, the influence of light on the dental material excited by visible light can be eliminated.

(Embodiment) Next, one embodiment of the medical drip instrument of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view of the drip infusion device of the present invention, which comprises a flexible cylindrical container 1, a cap 2 having a tubular flow path 4 at its tip, and a holder 3. The cylindrical container 1 is formed of a coloring resin obtained by adding a pigment to a flexible resin such as polyethylene, polypropylene, or polyvinyl chloride. Such a colored resin has a light transmittance of 400 to 500 nm of 2.0% or less, and a light transmittance of 550 to 600 nm of 7.0 to 25.0%.
So that an organic pigment or an inorganic pigment is added to the resin such as polyethylene or polypropylene. The smaller the transmittance of visible light, the more preferable, but the present inventors
As a result of the experiment, in order to visually confirm the remaining amount of liquid in the container, the light transmittance of 550 to 600 nm is 7.0 to 25.0.
Found that it must be%. If the light transmittance is less than 7.0%, the remaining amount of liquid cannot be visually confirmed. Further, at 25.0% or more, dental materials are excited.

Further, as shown in FIG. 1, the wall surface of the container has a thin and uniform thickness, and the liquid contained in the container is provided at the upper end of the container by manually compressing the wall surfaces facing each other of the container. It can be pushed out through the opening 5. The cross section of the container is usually circular, with screws 6,6 'on the outer wall at the top and bottom.
Is provided with a small diameter portion.

The colored resin that forms the cylindrical container has visible light of 550 to 600 nm 7.
Since 0 to 25.0% is transmitted, if the container is exposed to visible light for a long time, it is inevitable that the dental material contained in the container is partially excited. In the present invention, in order to reliably prevent the influence of light on the dental material, the outer peripheral wall of the cylindrical container is covered with a label 8 having slit-shaped openings 7 to the extent that the liquid level can be confirmed, or a light-shielding ink 8 is coated. Prevents visible light from affecting dental materials.

The cap 2 having a tubular flow path 4 at its tip has a rear end expanded in diameter, and is screwed into the small diameter part of the tip of the tubular container 1.

The holder 3 has a screw at its tip which is screwed into a small diameter portion provided in the lower portion of the cylindrical container, and is usually a cylindrical body whose diameter decreases toward the rear portion as shown in FIG. is there. If the outer diameters of the tip of the holder 3 and the rear end of the cap 2 are the same as the outer diameter of the tubular container, the holder, the tubular container, and the cap can be completely integrated. Such an infusion device can be operated by the user holding a pen or pencil. In addition, when the chemical solution is dispensed, or when the chemical solution is drip into a hard-to-reach place, as shown in FIG. 2, a thinner and thinner channel (for example, an inner diameter of 0.1 to 1 mm) is provided at the tip of the tubular channel 4. You may attach the nozzle 9 which has a. If the nozzle 9 is made of a resin having appropriate elasticity and plastic deformation (for example, polyethylene, polypropylene, etc.), the nozzle can be bent and used at any position. Regarding the drip infusion device of the present invention, when not in use,
It is preferable to attach a cap 10 that closes the tip to prevent liquid from spilling.

FIG. 3 is a perspective view of the drip device of the present invention held by a hand such as holding a pen or pencil. The holder 3 has a length long enough to be placed between the thumb and forefinger of the user. It has, and can hold the tubular container 1 by pinching it with the thumb and forefinger.
When both sides of the flexible cylindrical container 1 are compressed during use, the required amount of the drug solution in the container can be accurately discharged from the nozzle 9. When the compression of the cylindrical container is released, the outflow of the chemical liquid stops quickly and the liquid remaining in the nozzle is capped.
Return to inside.

Experimental Example Coloring containers A, B, and C were manufactured from three types of colored polyethylene resins having different pigment addition amounts. Further, as shown in FIG. 1, a label having slit-shaped openings having a width of 1.5 mm was attached to the outer peripheral wall of the same container D as the colored container B as shown in FIG. Dl in each container
-Contains a photosensitive dental material containing camphorquinone,
Xenon lamp light 8500-87 in a container containing the dental material
Table 1 shows the results of examining the solidification time of the dental material in the container by irradiation with 00LX.

The light transmittances of the colored containers A, B and C are shown in FIG.

(Effect of the device) As described above, the drip infusion device of the present invention has excellent handleability, the amount of liquid in the container can be visually confirmed, and the dental material contained in the container is excited by visible light. It can be stored stably for a long period of time.

[Brief description of drawings]

1 and 2 are cross-sectional views of the drip infusion device of the present invention, and FIG. 3 is a perspective view showing a usage state of the drip infusion device of the present invention.
FIG. 4 is a graph showing the light transmittance of the colored container. 1 ... Cylindrical container 2 ... Cap 3 ... Holder 7 ... Slit-like opening 8 ... Label

Claims (1)

[Scope of utility model registration request] 1. A flexible cylindrical container 1 having an opening 5 at its upper end.
A medical drip device comprising a cap 2 liquid-tightly connected to an upper part of the cylindrical container and having a tubular flow path 4 at a tip thereof, and a holder 3 connected to a lower part of the cylindrical container, The cylindrical container 1 has a transmittance of light of 400 to 500 nm of 2.0% or less, and 5
A label 8 having a slit-shaped opening 7 or a light-shielding ink, which is made of a colored resin having a transmittance of light of 50 to 600 nm of 7.0 to 25.0%, and is coated on the outer peripheral wall of the cylindrical container. Medical drip device.