JPH04825Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a device for cutting the needle of a syringe.

<Prior art> Today, diseases that can be transmitted from other people's blood, such as AIDS and hepatitis B, have become a social problem, and medical institutions are trying to prevent the spread of these diseases as much as possible, for which there are no effective treatments. Various efforts are being made.

One of these is the use of disposable injection needles. This consists of a syringe needle with a needle at the tip of a synthetic resin mounting barrel, and a synthetic resin syringe with an insertion barrel protruding from the distal end surface. Using a syringe, insert it into the
The needle of a used syringe is removed from the syringe barrel and disposed of by incineration, etc.

<Problem that the invention aims to solve> However, because the above-mentioned extraction process was carried out by grasping the needle with the fingers, there were many accidents where the needle was accidentally stuck in the hand, and the virus was attached to the needle. In this case, it was causing what is called an accidental stick infection.

Furthermore, if the needle is in a reusable state, there is a possibility that it will be diverted before being disposed of. Therefore, when the needle is removed from the syringe barrel, it is necessary to bend the needle tip or otherwise dispose of it so that it cannot be reused.

<Means for Solving the Problems> In order to solve the above problems, the present invention provides the following device. The device of the present invention includes a receiving part that the distal end surface of the syringe barrel comes into contact with, a syringe needle insertion port formed in the receiving part, a syringe needle accommodating part provided below the insertion port, and an insertion port. A cutter provided between the storage part and the storage part. Then, the length between the cutting blade of the cutter and the receiving part is set to be smaller than the length of the insertion barrel part of the syringe barrel, and the insertion barrel part of the syringe needle is inserted into the insertion barrel part of the syringe barrel. It is characterized in that it can be cut.

<Operation> In the syringe needle cutting device of the present invention, the syringe needle is inserted into the insertion port and cut by the cutter.
At this time, the injection needle is inserted until the tip of the syringe comes into contact with the receiving part, and the length between the cutting blade of the cutter and the receiving part is set to be smaller than the length of the insertion barrel part of the syringe barrel. Therefore, the mounting barrel portion of the injection needle is cut with the tip of the insertion barrel portion of the syringe barrel remaining inside. Since this insertion cylinder part is strongly inserted into the mounting cylinder part, it is virtually impossible to take out the tip of the insertion cylinder part. Then, this cut injection needle falls into the storage section and is stored,
The waste will then be sent for incineration, etc.

<Example> An example of the present invention will be described below based on the drawings.

FIG. 1 is a central vertical cross-sectional view of the syringe needle cutting device, FIG. 2 is an enlarged view of the main part, and FIG. 3 is a perspective view of the whole.

In this embodiment, as shown in FIG. 3, the cutting device main body is attached to an injection table, and this injection table consists of a circular support substrate 1, a column 2 erected therefrom, and a column attached to the upper end of the column. It consists of an arm rest 3 and a raised arm rest 3. The cutting device is attached to the lower surface of the arm rest 3. The following description will be made with the direction of the arrow in FIG. 3 as the front.

The casing of the cutting device is composed of a case body 4 and a lid body 5. A takeout port for the storage container 6 is formed on the left front side of the case body 4, and can be opened and closed by an opening/closing plate 7. The lower end of the opening/closing plate 7 is attached to the case body 4 by a hinge 8 so as to be rotatable by 90 degrees, and is configured to be maintained in a horizontal state in the open state. In the closed state, the closed state is maintained by standing vertically and the hanging portion 51 of the lid body 5 covering the upper end of the opening/closing plate 7.

A receiving portion 11 consisting of a funnel-shaped slope is formed on the upper surface of the lid body 5. In the center of this receiving part 11, as shown in FIG.
2 is formed in a circular shape.

A cutting blade of a cutter is arranged below the insertion opening 12. This cutting blade is made up of a fixed blade 13 and a movable piece 14 that are aligned vertically.
Cut holes 13a and 14a are formed in the same positions in 3 and 14. These holes are approximately the same size as the insertion port 12, and the injection needle fits into these holes 13a, 14a.
After being inserted into the injection needle, only the lower movable blade 14 moves toward the rear end (leftward in FIG. 2), thereby cutting the injection needle.

Although this movable mechanism will be described in detail later, by stepping on a pedal 1a provided on the support board 1,
The movable blade 14 is configured to move and cut.

Next, below the cutting blade, there is arranged a housing for the cut needle. Although this storage portion may be the case body itself, in this embodiment, a storage container 6 made of synthetic resin is used. An opening 15 approximately the same size as the insertion port 12 is provided on the upper surface of the storage container 6.
is formed, and as mentioned above, the case body 4
It is stored inside the case body through the outlet on the front left side of the case. Note that this opening 15 is similar to the insertion port 1.
2. Since the guide plate 16 needs to be directly below the cutting holes 13a and 14a, it is also desirable to form a guide plate 16 as shown in FIG. 1 inside the bottom surface of the case body 4. Further, it is desirable that the length of the storage container 6 in the left-right direction be equal to the length of the inside of the case body 4 in the left-right direction so that the storage container 6 does not move when the opening/closing plate 7 is closed.

Next, how to use this cutting device will be explained.

First, the patient's arm placed on the arm rest 3 is injected, and the tip of the syringe is inserted into the insertion port 12 of the receiving part 11 (FIG. 2). Here the syringe is
It consists of a syringe needle in which a needle b is provided at the tip of an attachment cylinder part a made of synthetic resin, and a syringe cylinder e made of synthetic resin in which an insertion cylinder part d is protruded from the distal end surface c.
is strongly fitted into the mounting cylinder part a.
Then, the injection needle is inserted into the insertion port 12 without removing the syringe barrel e. At this time, in the embodiment, since the receiving part 11 forms a funnel-shaped slope,
The needle b is guided by this slope and inserted into the insertion port 1.
2, it stops in a state where it comes into contact with the cutting holes 13a, 14a of the cutter and the funnel-shaped slope of the opening 15 of the container. Here, cut holes 13a, 14 of the cutter
By making the hole a slightly larger than the mounting barrel part a, the syringe is supported at two points, the distal end surface c and the mounting barrel part a, and will not fall over even if the hand is removed.

Next, the aforementioned pedal 1a is stepped on, the movable blade 14 is slid, and the injection needle is cut. Here, the distance m between the movable blade 14 and the receiving portion 11 is set smaller than the protrusion length n of the insertion barrel portion d from the distal end surface c of the syringe barrel. Therefore, the injection needle has a tip d ₁ of the insertion barrel.
is cut while leaving it inside the tip _a1 of the mounting cylinder,
It is housed in a storage container 6. In this way, the cut end a ₁ of the insertion cylinder part fits inside the insertion cylinder part tip d ₁ , and since this fitting is done strongly as described above, the insertion cylinder part tip d ₁ It is virtually impossible to remove the needle and the needle cannot be reused.

When the needles have accumulated in the container 6 to a certain extent, the container 6 is removed from the case body 4 and the opening 1 is opened.
5 is closed with stainless steel adhesive tape and sent to a processing company. The above enables safe and reliable disposal of injection needles.

Next, based on FIG. 1, the fixed blade 13 and the movable blade 1 are
The cutting mechanism according to No. 4 will be explained. This cutting mechanism has the following features:
Use cutter No. 34526. This cutter is
An upper handle 21 and a lower handle 22 are rotatably attached with an upper pin 23. The lower handle 22 has a cover 24, and a blade holding portion 25 at the tip of the cover 24.
The fixed blade 13 is passed through the hole a and fixed by appropriate means such as bolts 26. A blade clamping part 25b that pairs with the blade clamping part 25a is also formed at the tip of the lower handle 22, and the movable blade 14 is inserted into this blade clamping part 25a. A rack 27 is provided at the base end of the movable blade 14, and a small gear 28 meshing with the rack 27 is pivotally connected to the lower handle 22 by a central pin 29. This small gear 28 is connected to the upper handle 21
It meshes with an internal gear 30 provided at the lower end. A V-shaped spring 31 is disposed around the upper pin 23 between the upper part of the center pin 29 and the inner surface of the upper handle 21 .

As a result, when the upper handle 21 is pulled down against the elasticity of the spring 31, the small gear 28 rotates and pulls the rack 27, causing the movable blade 14 to slide toward the rear end (leftward in the figure). When the upper handle 21 is released, the elasticity of the spring 31 returns it to its original state.

This cutter is installed in the case body 4 with the following configuration. Inside the case body 4, there is a receiving plate part 41 and a pillow part 42 arranged on the tip side of the receiving plate part 41.
and a presser plate portion 43 which is folded back and formed on the rear end side. The cutter is attached by removing the lid 5 of the case body 4, and is attached to the lower handle 2.
2 is the folded part 43 of the receiving plate part 41 and the pillow part 42
The tip of the presser plate portion 43 engages with the center pin 29 .

In addition, as shown in FIG. 4, each part 41, 42, 4
3 is supported within the case body 4 by support legs 44, and guide plates 44a are erected on both sides of the cutter to prevent the cutter from falling down. And the lid body 5
When it is closed, its back surface presses the cover plate 24 of the cutter, and the fixation of the cutter is completed.

Next, the structure for pulling down the upper handle 21 of this cutter will be explained based on FIG. 1. A rotating arm 45 is supported by a shaft 46 on the case body 4, and a connecting portion 47 is formed at the tip of the rotating arm. This connecting part 47 has a top part 47a and hanging parts 47b formed on both sides thereof, into which the end of the upper handle 21 of the cutter is inserted. The tip of a wire 48 is connected to the center of the connecting portion 47, and the lower end of the wire is connected to the pedal 1a in FIG. 3. The pedal 1a is always urged upward by a spring, and by stepping on the pedal 1a, the wire 48 is pulled downward and the upper handle 21 is pulled down via the rotating arm 45.

In the above embodiment, the cutter is attached and detached by removing the lid 5 of the case, but it is also possible to attach and detach the cutter by opening and closing only the front of the case. This example will be explained based on FIG. 5 and subsequent figures. Incidentally, parts that are substantially the same as those in the previous embodiment are designated by the same reference numbers, and the description thereof will be omitted.

First, as shown in FIG. 5, the case body 4 is
The entire left side plate 101 opens and closes with a hinge 102,
The closed state is maintained by a stopper 103 that engages with the bottom surface of the case body 4.

A storage container (not shown) is stored in the front side (right side in the figure) of the case body 4, and in this example,
The storage container is housed in a state where it is fitted into the saucer 111. The right wall surface 112 of this saucer 111 is formed high. A case 113 is disposed on the right side of the case body 4, energizes the right wall surface 112 of the saucer 111, and presses the left side plate 101 of the case body.
When opened, the saucer 111 is configured to protrude slightly more than the case body 4. Note that a projection for temporarily fixing the saucer 111 inside the case body 4 against the spring 113 may be provided at an appropriate position such as on the bottom surface of the case body 4.

Next, the left side plate 101 is opened, and the cutter is housed in the case body 4 while being supported by the support body 121 inserted into the rear side of the case body 4 (on the left side in the figure).

As shown in FIGS. 6 and 7, this support body 121 is composed of a base plate 122, and a first support plate 123a and a second support plate 123b that are erected on the base plate 122. An upper front plate 124a and a lower front plate 124b are passed between both support plates 123a and 123b, and a front opening 124c is formed between both support plates 124a and 124b. In addition, both support plates 123
A and 123b are provided with a receiving plate 125 shaped to follow the curve of the lower handle 22 of the cutter, and
A leaf spring material 126 that elastically supports the rear end of the lower handle 22
is installed.

Moreover, above both support plates 123a and 123b,
A rotating plate 127 is attached. This rotary plate 127 is rotatably attached at its tip by a shaft 128 between the support plates 123a and 123b.

An upper connecting plate 129 is attached to the rear end of the rotating plate 127 via a hinge. A spring 130 is arranged on this hinge, and
A stopper 131a is provided on the rotary plate 127 in a protruding manner. This spring 130 allows the upper connecting plate 1
29 is biased toward the stopper 131 and is stopped in a substantially hanging state. A connecting portion 132 bent upward at an acute angle is formed at the lower end of the upper connecting plate 129 . Additionally, in order to increase the strength of the upper connection plate 129, it is desirable to form ribs 133.

The cutter is inserted between both support plates 123a and 123b with the rotating plate 127 swung upward, the cover plate 24 of the cutter is in contact with the upper front plate 124a, and the rear end of the lower handle 22 is made of leaf spring material. 126 and is fixed in the engaged state. The cutter blades 13 and 14 protrude from the front opening 124c.
After the cutter is attached, the rotating plate 127 is lowered, and the rear end of the upper handle 21 of the cutter comes into contact with its lower surface.
In this state, the support body 121 is installed inside the case body 4.

As shown in FIG. 7, a lower connecting plate 141 is disposed on the rear side surface 104 of the case body 4. As shown in FIG.
This lower connection plate 141 is inserted into a guide plate 142 provided on the rear side of the case body 4 so as to be slidable up and down. A lower connecting plate 143 is formed at the upper end of the lower connecting plate 141 and is bent downward at an acute angle. Further, the lower end 144 is bent at a substantially right angle,
The tip of the actuation wire 48 is connected, and
It is urged upward by a spring 145.
Note that it is desirable that this lower connection plate 141 also be provided with ribs extending in the vertical direction.

Thus, with the support body 121 installed in the case body, the upper connection part 132 on the support side and the lower connection part 143 on the case body side are engaged, and by stepping on the pedal and pulling the wire 48, the lower connection part 132 is engaged. The connecting plate 141, the upper connecting plate 129, and the rotary plate 127 are lowered, and the upper handle 21 of the cutter is pushed down, so that cutting is performed by the cutter blade.

Incidentally, as shown in FIG. 8, by curving the right end of the upper connecting portion 132 downward and curving the left end of the lower connecting portion 143 upward, engagement between the two becomes easier. Further, as shown in FIG. 9, the support body 121
By providing support protrusions 124d, 124d on both left and right sides at the upper end of the lower front plate 124b, and by arranging the reinforcing rib 22a of the lower handle 22 of the cutter between the two, the cutter can be supported more reliably. .

In the above embodiment, not only the cutter but also the support 121 and the saucer 111 of the container 6 are used.
They can also be easily removed from the case body 4 and can be easily sterilized, which is advantageous in keeping the instruments clean. Also, the case body 4
It is also preferable that the case body 4 itself be detachably attached to the support column 2 by means of a locking device using a screw or a spring, so that the case body 4 can also be sterilized.

Note that the cutter may be changed to one that does not use a rack (for example, Japanese Patent Application Laid-Open No. 75038/1983).
Alternatively, it may be changed to something like ordinary scissors.
In addition to the foot pedal, the cutter may be actuated by hand, or by a motor or air cylinder. moreover,
In the embodiment, the case body is attached to an injection table, but it may be attached to another treatment table, or it may be used alone. Also, the length of the strut may be adjustable.

<Effects of the Invention> As described above, the cutting device of the present invention can safely cut a hypodermic needle without ever having to touch the hypodermic needle with one's hands and without any fear of accidental puncture infection. Furthermore, since the distal end of the insertion barrel of the syringe barrel remains strongly fitted into the mounting barrel of the cut syringe needle, it becomes virtually impossible to reuse the syringe needle. Therefore, the present invention provides a needle cutting device that can safely dispose of needles in a manner that they cannot be reused.

[Brief explanation of the drawing]

FIG. 1 is a central longitudinal cross-sectional view of a cutting device according to an embodiment;
Fig. 2 is an enlarged view of the main parts, Fig. 3 is an overall perspective view, Fig. 4 is a front view of main parts showing the support state of the cutter, and Fig. 5 is a perspective view of another embodiment as seen from the left side. , FIG. 6 is a perspective view of the cutter support body as seen from the right side, FIG. 7 is an explanatory diagram of the internal structure of the case body as seen from the right side, and FIG. 8 is an end view taken along the line -- in FIG.
FIG. 9 is an explanatory diagram of the cutter support structure seen from the front. 4...Case body, 5...Lid, 6...Accommodating container, 11...Receptor, 12...Insertion port, 13...
Fixed blade, 14... Movable blade, a... Mounting cylinder part, b...
...needle, c...tip surface, d...insertion barrel, e...syringe barrel.

Claims (1)

[Scope of utility model registration request] The injection needle of the syringe is composed of a syringe with a needle provided at the tip of the mounting barrel, and a syringe with an insertion barrel protruding from the distal end surface, and the insertion barrel is inserted into the mounting barrel. The cutting device includes a receiving portion against which the distal end surface of the syringe barrel comes into contact, a needle insertion port formed in the receiving portion, and a needle accommodating portion provided below the insertion port. , a cutter provided between the insertion port and the accommodating part, the length between the cutting blade of the cutter and the accommodating part is set to be smaller than the length of the insertion barrel part of the syringe barrel, and the injection needle can be attached. A syringe needle cutting device characterized in that the cylindrical portion is cut with the insertion cylindrical portion of the syringe barrel inserted into the interior.