JPH0135672B2 - - Google Patents

Description

[Detailed Description of the Invention] () Industrial Application Field The present invention is applicable to the case where a diabetic patient who can go to the hospital, for example, inhales a medicinal solution into a syringe and injects it himself at home or at work. This invention relates to a drug solution inhalation aid that allows the amount of the syringe pusher to be pulled out to be constant each time an injection is made by setting the amount, thereby making it easier to inhale the drug solution into the syringe.

() Prior art and its problems Many diabetic patients have poor eyesight, and when inhaling insulin from a vial into a syringe, it is difficult for such people to It is difficult to accurately read the insulin, and it is extremely troublesome to have someone else inhale insulin each time.

Furthermore, when a patient with poor eyesight inhales a medicinal solution into a syringe by himself/herself, it is difficult to detect air bubbles mixed into the syringe.

Therefore, there is a need for the above-mentioned drug solution inhalation aid, but conventional drug solution inhalation aids include Utility Model Publication No. 51861/1986 and Publication of Utility Model Application in 1932.
There is issue 16019. However, with these devices, the amount of medicine taken into the syringe is adjusted when the pusher of the syringe is pulled and it touches the stopper, and air may be taken into the syringe along with the medicine. had the disadvantage that it was not possible to take in the exact amount of drug solution.

() Problem to be solved by the invention The present invention has been devised in view of the above-mentioned points.
For example, when a diabetic patient who can go to the hospital inhales and injects a medicinal solution into a syringe by himself or herself at home or at work, the system is devised so that the amount of withdrawal of the syringe pusher can be regulated to a desired value. Once the drug inhalation amount is set, there is no need to accurately read the scale on the syringe's outer barrel and set the drug solution inhalation amount each time an injection is made. To provide a drug solution inhalation aid that allows an accurate amount of insulin to be inhaled into a syringe easily after the inhalation amount is set once.

In particular, in the present invention, the pusher of the syringe can come into contact with the stopper when the air that is taken into the syringe together with the drug solution is discharged back into the vial with the needle tip facing upward. It is an object of the present invention to provide a drug solution inhalation aid that can take in a precise amount of drug solution.

() Means for Achieving the Object The liquid drug inhalation aid of the present invention has a semi-cylindrical shape on which the outer cylinder of a syringe can be placed and held, and the flange provided at the proximal end of the outer cylinder of the syringe is attached to the axis. a holder having a flange latching portion that can be immovably latched in the direction; and when the holder holds the outer cylinder of the syringe and the pusher is pulled out, the holder has a flange hook that can be hooked in an immovable manner; A stopper guide extends along the stopper guide, and the pusher of the syringe, which is attached movably and fixedly along the stopper guide and is held in the holder, is regulated to a predetermined withdrawal position by abutting the pusher head. The stopper is wedge-shaped with a slope that slopes downward toward the holder, and the slope is such that when the upper end of the slope comes into contact with the head of the pusher when the pusher is pulled, the stopper is wedge-shaped. It is characterized by the fact that it is said to have a height that can be climbed over by floating.

Therefore, place the syringe on the holder, pierce the rubber stopper of the vial containing the drug solution with the needle tip facing downward, and pull the pusher backwards beyond the stopper to dispense more drug solution than necessary into the syringe. After filling the syringe with the needle tip facing upward, push the pusher until it touches the stopper. This will allow the air that is taken into the syringe along with the drug solution to be expelled back into the vial. The required amount of chemical solution can always be taken in accurately.

() Example The drug solution inhalation auxiliary device of the present invention is shown in Figures 1 and 2.
As shown in the figure, it consists of a holder 1, a stopper guide 2, and a stopper 3.

The holder 1 is for holding the outer cylinder 4a of the syringe 4, and has approximately the same length as the outer cylinder 4a of the syringe 4. The holder 1 is for holding the outer cylinder 4a of the syringe 4, and the holder 1 is for holding the outer cylinder 4a of the syringe 4. As can be seen from FIG. 3, a holding portion 1a that can be detachably fitted and held from any direction may be provided at an appropriate location.

In FIGS. 1 and 2, the holder 1 has a shape in which the cylindrical body is roughly divided vertically in half, that is, a so-called half-sheath shape, in order to make it easier to hold when assembled with the syringe 4. In order to prevent the syringes 4 from moving in the axial direction when they are combined, the axial movement of the syringe 4 is suppressed by locking the flange of the outer cylinder 4a of the syringe 4 when holding the syringe 4. It has a flange retaining portion, for example, a notch 1b into which a flange as shown in the figure can be inserted, or a recess 1c as shown in FIG.

Furthermore, in FIGS. 1 and 2, the holder 1 is easy to hold and also functions as a convex lens so that even people with poor eyesight can easily see air bubbles in the barrel of the outer cylinder 4a of the syringe 4. As shown in FIG. 5, it is a convex lens made of a transparent body, preferably a transparent synthetic resin, whose vertical cross section with respect to the longitudinal direction is curved in a substantially crescent shape.

Note that the holder 1 only needs to have a convex lens made of a transparent body and having substantially the same length as the scale on the outer cylinder 4a of the syringe 4 to be held.

Furthermore, if the holder 1 is to be a lens, it cannot be formed as shown in FIG. 3.

The stopper guide 2 may be a plate-shaped or rod-shaped body extending in the length direction from one end of the holder 1, and the connection part with the holder is provided with a reinforcing rib 5.
reinforced with.

Further, the stopper 3 is attached so as to be movable and fixed along the stopper guide 2, as shown by the arrow 6 in FIG. It is sufficient that it can be regulated to a predetermined position by coming into contact with the pusher head 4c.

Preferably, the stopper 3 is a slope that slopes downward toward the holder 1, as shown in FIG.
It is desirable to have a slope that the pusher head 4c contacts and overcomes when the pusher head 4c is pulled, that is, a wedge surface 3a that lifts the pusher head upward, at a position that interferes with the pusher head 4c.

As shown in FIGS. 1 and 2, the stopper guide 2 has a plurality of latching protrusions 2a that can regulate the position of the stopper 3 at predetermined intervals, and each protrusion has a scale corresponding to the scale of the syringe. 2c is preferably provided, and it is further preferable to have a slit 2b so that the stopper 3 engages and is fixed by a screw 7.

The stopper 3 may be in the form of a ring or a C-shape (not shown) having an appropriate fixing means other than a screw, such as a pin 8, as shown in FIG. 4, which slides on the outside of the stopper guide 2.

Next, how to use the drug solution inhalation aid constructed as above will be explained.

In order for a diabetic patient to inhale insulin from a vial into the syringe 4 using this drug inhalation aid, first fit the syringe 4 into the holder 1 of this drug inhalation aid and pull out the pusher 4b of the syringe 4. and push the pusher head 4c onto the slope 3a of the stopper 3.
The stopper 3 is moved onto the stopper guide 2 and the syringe 4
The barrel volume of the stopper 3 must be determined and the stopper 3 must be fixed to the stopper guide 2.

Therefore, in order to determine the barrel volume of the syringe 4, when the plunger 4d matches the desired position on the scale attached to the outer cylinder 4a, the pusher head 4c
so that it comes into contact with the rear surface of the stopper 3 as described above.

Further, when the stopper guide 2 has a locking projection 2a of a predetermined pitch as shown in the figure, and the locking projection 2a has a scale corresponding to the scale of the syringe 4,
Alternatively, if there is no latch protrusion 2a but there is a scale, the stopper 3 can be fixed at the desired scale position before the syringe 4 is attached to the holder 1 of this drug inhalation aid, and in the former case, the pusher The stopper 3 is not displaced due to the contact with the head 4c, and a predetermined amount of the medicinal solution can be inhaled at all times.

Such a positioning operation of the stopper 3 is extremely difficult for patients with poor eyesight, so the adjustment may be done by another person.

After making the above adjustments, the patient can inhale a precise amount of a medicinal solution such as insulin into the syringe 4 using this medicinal solution inhalation aid.

That is, fit the outer cylinder 4a of the syringe 4 into the holder 1 of this drug inhalation aid as shown in Fig. 1, hold the outer cylinder 4a and the holder 1 with one hand, and pierce the stopper of the vial B with the needle 4e. , the pusher 4b is brought into contact with the slope 3a of the drawer stopper 3, and the pusher 4b is moved over the slope 3a of the drawer stopper 3 while preventing the tip of the needle from touching the air in the vial B.

Then, a larger amount of drug solution than the desired amount to be injected by the patient is inhaled into the syringe 4.

Continue to insert vial B into needle 4e,
With the needle 4e facing upward, press the pusher 4b to the stopper 3.
Push it in until it contacts the rear surface, completely expel the air inhaled into the syringe 4 from the syringe 4, and discharge the medicinal solution inhaled more than the predetermined amount to make the medicinal solution in the syringe 4 a constant amount, and then, Remove vial B from needle 4e.

At this time, if part or all of the holder 1 is a convex lens, even patients with poor eyesight can see the air attached to the inner wall of the barrel of the outer cylinder 4a of the syringe 4 through the convex lens. If bubbles are found to be attached to the inner wall of the barrel, use your fingers to lightly vibrate the outer cylinder 4a of the syringe 4 to separate the bubbles from the inner wall and push the pusher to discharge them.

Therefore, if the syringe 4 is removed from this medical liquid inhalation aid and the patient performs the injection himself/herself, the patient can inject the desired amount of the medical liquid without mixing in air.

In addition, when you pull out the pusher 4b of the syringe 4 and pull the pusher head 4c until it matches the rear surface of the stopper 3, if it is confirmed that the drug solution can be inhaled without putting air into the syringe 4, then Pusher 4
There is no need to extract b.

() Specific Effects of the Invention According to the drug solution inhalation aid device of the present invention described above, the syringe is placed on the holder, the needle tip is directed downward, and the rubber stopper of the vial containing the drug solution is pierced, and the pusher is pressed. After drawing the drug solution into the syringe in a larger amount than necessary by pulling it backwards beyond the stopper, push the pusher with the needle tip facing upward until it touches the stopper. Not only can trapped air be discharged back into the vial, but also the required amount of drug solution can always be accurately taken into the syringe.

Therefore, if a patient with diabetes or the like uses the drug solution inhalation aid device of the present invention to inhale a drug solution such as insulin sealed in a vial into a syringe, at the beginning of use, the stopper should be aligned with the desired position of the stopper guide. By simply fixing the syringe in place and determining the amount of medicine to be inhaled, it is extremely easy to pull out the syringe pusher and inhale a certain amount of medicine into the syringe. It's extremely convenient.

In other words, before use, the patient, or someone else if the patient has poor eyesight, moves the stopper onto the stopper guide and fixes it at the desired position, thereby determining the amount of drug to be inhaled from the syringe. In this case, the patient can always inhale a fixed amount of drug solution into the syringe by simply performing a simple operation.

In other words, the patient fits the syringe into the holder, inserts the needle through the stopper of the vial, pulls out the pusher of the syringe, brings the pusher head into contact with the stopper, then moves the pusher over the stopper, and then raises the vial and needle upward. A constant amount of drug solution can always be inhaled into the syringe by simply pushing in the pusher to return excess drug solution into the vial and keeping the pusher in contact with the rear end of the stopper.

Furthermore, if the stopper guide has a plurality of locking protrusions that can regulate the position of the stopper at predetermined intervals, there is a risk that the stopper may not be fixed at the desired position, which must be adjusted before use. The stopper can be fixed at a desired position without comparing the amount of pullout of the pusher, and furthermore, the holder is made of a convex lens whose vertical cross section with respect to the longitudinal direction is curved in an approximately crescent shape. In this case, as described above, the holder has an excellent shape both in terms of ease of grip and as a convex lens that allows even patients with poor eyesight to magnify and view air bubbles in the syringe through the holder.

[Brief explanation of drawings]

FIG. 1 is a front view showing a state in which a syringe is held in a drug solution inhalation assisting device according to an embodiment of the present invention, the needle is inserted into the stopper of a vial, and the pusher is about to be pulled out; FIG. A sectional view along the longitudinal direction of the auxiliary device, FIG. 3 is a sectional view of a liquid drug inhalation auxiliary device according to another embodiment, and FIG. Figure 5 shows
It is a - sectional view in FIG. 1. 1... Holder, 1a... Holding part, 1b... Notch, 1c... Recess, 2... Stopper guide, 2
a...Latching protrusion, 3...Stopper, 3a...Slope, 4...Syringe.

Claims (1)

[Scope of Claims] 1. A flange hook that has a half-cylindrical shape on which the outer barrel of a syringe can be placed and held, and that can hook a flange provided at the proximal end of the outer barrel of the syringe so that it cannot move in the axial direction. a holder having a stop; a stopper guide extending from the base end of the holder beyond the head of the pusher when the holder holds the outer cylinder of the syringe and the pusher is pulled out; A drug solution inhalation auxiliary device comprising a stopper that is movably and fixedly attached along a par guide and that restricts a pusher of the syringe held in the holder to a predetermined withdrawal position by abutting the pusher head, The stopper is wedge-shaped with a slope that slopes downward toward the holder, and the slope is set at a height such that when the upper end of the pusher is pulled, the head of the pusher comes into contact and rises slightly to overcome the slope. A drug solution inhalation aid characterized by: 2. The drug solution inhalation aid according to claim 1, wherein the holder is a lens having a substantially crescent-shaped cross section perpendicular to its longitudinal direction. 3. The drug solution inhalation aid according to claim 1, wherein the stopper guide has a plurality of latching protrusions that can regulate the position of the stopper at predetermined intervals.