JP2003000710A - Syringe for preventing medical malpractice - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a syringe for preventing a medical malpractice enabling a doctor to directly write (draw) a character or mark on the syringe by a ballpoint pen and making the written (drawn) character or mark sharp and hard to erase so as to make it possible to visually confirm the same clearly. SOLUTION: At least one layer 3 among a rough surface processed layer capable of being written by the ballpoint pen, a pigment layer, a microcapsule layer and a foamed film layer is provided to the syringe 1 at an appropriate place not overlapped with the graduations 2 thereof. The surface provided with this layer 3 may be a plain surface. When this layer 3 is the microcapsule layer, the microcapsules constituting this layer are formed by enclosing shells with a dye or pigment and, when the character or mark is written on this layer by the ballpoint pen, the shells are destructed and the enclosed dye or pigment is leached from the shells to be fixed to the microcapsule layer.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a syringe for preventing medical errors, and more specifically, a doctor or a nurse can easily write (draw) characters or symbols directly on the syringe with a ballpoint pen or the like. In addition, it relates to a syringe for medical error prevention, in which written characters, symbols, etc. are clear and indelible and can be clearly seen.

[0002]

2. Description of the Related Art In recent years, the number of medical mistakes has increased due to the complexity of organizations such as medical institutions and the complicated medical procedures. In order to prevent this accident, various measures have been taken for each medical institution. For example, in a syringe
Colored by coloring the syringe itself (outer cylinder << cylinder part >> or inner cylinder << piston part >>), colorless when used for injection purposes, green when used for other purposes. Has been done.

Further, in order to prevent wrong medicine (mistake between patients or wrong medicine to be administered), the patient name and the medicine name are directly written on the outer cylinder of the syringe sucking the injection medicine with an oil-based pen. Things are also done together. However, with an oil-based pen, not only is it difficult to write (draw) on a small-sized syringe, but it is also very difficult to see the written characters and symbols. The writing instrument generally carried by medical personnel such as doctors and nurses is not an oil-based pen but a ball-point pen.

However, in the case of a ball-point pen, the writing medium is limited to a writing-appropriate medium such as paper, and it is impossible to write on the syringe itself which is not made of glass or plastic and has no writing-appropriation. Therefore, for syringes made of these materials, it is currently difficult to use, but it is possible to directly write letters, etc. on the syringe with an oil-based pen, or to label the syringe and write letters, etc. on this label. Has been done.

Therefore, in the present invention, it is possible to easily write (draw) characters or symbols directly on a glass or plastic syringe by using a ball-point pen, an oil-based pen, or other appropriate tools and devices. Moreover, it is an object of the present invention to propose a syringe for preventing medical mistakes in which written characters (characters), symbols, etc. are clear, hard to erase, and can be clearly seen.

[0006]

In order to achieve the above-mentioned object, a syringe for preventing medical errors according to the present invention is provided with a roughened surface layer and a pigment capable of at least writing with a ballpoint pen at an appropriate position which does not overlap the scale of the syringe. At least one layer of a layer, a microcapsule layer, and a foamed film layer is provided. At least this syringe, said roughened layer,
The surface on which at least one layer of the pigment layer, the microcapsule layer, and the foamed film layer is provided may be a flat surface. Further, the microcapsule constituting the above-mentioned microcapsule layer is one in which a dye or pigment is encapsulated in the shell, and the shell is destroyed and encapsulated at least when writing to the layer with a ballpoint pen. Alternatively, the pigment may be leached out of the shell and fixed on the microcapsule layer. Furthermore, a microcapsule layer composed of microcapsules in which a dye or a pigment is encapsulated in a shell is provided under at least one layer of the pigment layer and the foamed film layer. At least at the time of writing with a ball-point pen on the foamed film layer, the shell of the microcapsule is destroyed, and the dye or pigment enclosed in the shell is leached out of the shell, and the dye or pigment is passed through the pigment layer or the foamed film layer. The color of may be visible.

The syringe of the present invention may be made of conventional glass or plastic. In the outer cylinder of the syringe made of these materials, at a suitable place that does not overlap the scale, at least a roughened surface layer capable of writing with a ballpoint pen, a pigment layer,
At least one layer of the microcapsule layer and the foamed film layer is provided. At this time, if at least the surface of the syringe on which these layers are provided is a flat surface instead of a curved surface like an ordinary syringe, the work of writing (drawing) characters with a ballpoint pen or the like becomes easy, Characters can be written (drawn) more clearly, and characters written (drawn) can be read more clearly. This flat portion may be provided by any means, for example, the shape of the outer cylinder portion itself may be partially flat, or the inner surface of the outer cylinder may be a curved surface. None, only the outer surface may be partially flat (for example, a part of the outer surface is scraped off). The writing instrument for the above layers may be various ones such as a ballpoint pen, an oil-based pen, a pencil, a thin and hard rod-like body (a rod-like body made of metal, wood, plastic, etc.).

The method for providing these layers is not particularly limited, but the roughened layer may be, for example, a glass or plastic syringe surface treated with ozone, sandblasted, chemically etched with an acid, alkali or organic solvent. Then, the surface is roughened and various kinds of roughening are performed at least until writing with a ballpoint pen is possible. That is, since the glass or plastic constituting the syringe has high smoothness, this highly smooth surface can be provided by roughening at least to the extent that ballpoint pen writing is possible.

The pigment layer is formed, for example, on the surface of the above-mentioned syringe.
In order to provide compatibility with the pigment layer, the above roughening is performed to some extent (writing characters etc. with a ballpoint pen etc. is difficult, but compatibility with paints containing pigment etc. is expressed).
It can be provided by applying a coating material containing a pigment or the like on this. It is important that the pigment layer is at least a layer suitable for writing with a ballpoint pen. The color of the pigment is not particularly limited, and when a light pigment such as white, yellow, light red, light blue, light green, light purple, light ash, light brown is used, a ballpoint pen, an oil-based pen, a pencil, etc. may be used. , Etc., can be easily visually recognized, and when using dark pigments such as red, blue, green, purple, black, etc., write with the thin and hard rod-like body (scratch and write) Characters etc. can be easily visually recognized. In addition, for example, if you create a manual for each hospital that uses a syringe, and use it for injection purposes with a white pigment, and for syringes used for other purposes, yellow, light red, light blue, light Use light-colored pigments such as green, light purple, light ash, and light brown, or use different colors depending on the type of disease (for example, light blue for respiratory system, light red for circulatory system, light red for digestive system). It is also possible to use pigments of various colors, such as the use of pigments such as yellow).

The microcapsule layer is a layer in which microcapsules are used in place of the pigment of the pigment layer, and like the pigment layer, the surface of the syringe is subjected to the above treatment to roughen the surface, It can be provided by coating a coating material containing microcapsules thereon. The microcapsule layer is not limited in type and color as long as it can be written by a ballpoint pen. Even in this case, as described above, for example, a manual is created for each hospital that uses the syringe, and the syringe when used for the purpose of injection is colorless transparent, colored transparent, translucent, white, etc. Use microcapsules or light green microcapsules for other purposes, or use different colors depending on the type of disease (for example, pale blue for respiratory system, pale red for circulatory system, digestive It is also possible to use microcapsules of various colors, such as the use of yellow microcapsules in the case of a system).

The microcapsule layer is a microcapsule in which a dye or a pigment is encapsulated, and the microcapsule layer has a microcapsule when writing with a ballpoint pen, a pencil, or a thin and hard rod-like body. A dye or pigment (hereinafter, also referred to as a colorant) which is encapsulated in the microcapsule by breaking the shell of the capsule is leached out of the shell and may be fixed on the microcapsule layer. In this case, since the characters and symbols written with these writing tools clearly appear on the microcapsule layer and do not disappear, the characters and symbols can be clearly recognized. Therefore, in this case, even though it is difficult to see the letters and the like written with a pencil or a thin and hard rod-like body, the coloring agent inside the microcapsules will seep out and set along the written traces and will not disappear. It can be clearly seen, and a wide range of writing instruments can be used.

Further, in this case, for example, the following usage can be made. The microcapsule shell should be white, and when the patient name is written on the microcapsule layer with a ball-point pen etc., the shell breaks and the colorant contained in the microcapsule leaches out to the outside of the microcapsule. Since it is settled on the layer, it is judged whether or not this leaching color is compatible with the disease of the patient written with a ballpoint pen or the like. This mode of use will be specifically described by giving an example. The shell has a white color, and the coloring agent enclosed therein is blue for respiratory diseases, red for circulatory system, and digestive system. If the patient name is yellow, write the patient's name on the microcapsule layer (which is white due to the color of the shell) with a ballpoint pen, etc., the shell will be broken by the pen pressure and the colorant inside will seep out. The area around the patient name is dyed in red, for example. Therefore, if the injection solution corresponding to the patient's disease (circulatory system) is injected into this injector, it can be confirmed that the injection solution is compatible with the patient, and the occurrence of medical error can be prevented. .

The color of the shell and the colorant to be enclosed therein are not limited to the above-mentioned colors and can be selected appropriately. That is, the shell is not limited to white, but yellow, light red, light blue, light green, light purple, light ash, and other characters and symbols written with a ballpoint pen can be clearly seen, but the colorant enclosed inside Should not be visible, or the colorant enclosed should be such that when the shell ruptures and leaches out, the characters and symbols written with a ballpoint pen etc. can be seen without being completely hidden. For example, it is not limited to the above red, blue, and yellow. Also, the relationship between the color of the shell and the color to be enclosed inside is not particularly limited, and a combination can be selected as appropriate, but if it is the same color, it becomes difficult to clearly recognize characters and symbols. In some cases, a combination of different colors is suitable from the viewpoint of preventing medical errors.

Further, in the present invention, as the microcapsules constituting the microcapsule layer, it is also possible to mix and use those having different colors of the colorants enclosed in the shell in an appropriate combination. For example, microcapsules encapsulating a yellow colorant and microcapsules encapsulating a blue colorant can be mixed and used at an appropriate ratio. In this case, if the shell is broken by writing with a ballpoint pen and the yellow and blue colorants are leached out of the shell, they may be visually recognized as green due to the synergistic action of these colors.

In addition, in the present invention, a layer containing both microcapsules and pigments can be provided. That is,
A microcapsule is mixed with the above-mentioned pigment-containing paint, or conversely, a pigment is mixed with a microcapsule-containing paint to prepare a paint containing both microcapsules and a pigment. It is also possible to apply it on top to form a layer containing both microcapsules and pigments.
In this case, the pigment and the color of the microcapsule may be appropriately combined, and a colorant of an appropriate color may be enclosed in the microcapsule.

The foamed film layer is a layer formed by making a synthetic resin film porous and imparting a writing aptitude to the synthetic resin film. As the foamed film, a commercially available product may be used as it is. Further, the foamed film layer may be colored in a light color such as white, yellow, light red, light blue, light green, light purple, light ash, light brown and the like. To provide this film layer, as in the case of providing the above-mentioned pigment layer or microcapsule layer, for example, the surface of the syringe is subjected to the above-mentioned treatment to roughen the surface, and the foamed film layer is adhered onto the surface. Alternatively, it can be provided by sticking with an adhesive having compatibility with glass or plastic.

Further, in the present invention, a microcapsule layer composed of microcapsules having a colorant encapsulated in the shell may be provided under at least one of the pigment layer and the foamed film layer. , In this case, when writing characters etc. on the pigment layer or the foamed film layer with a ball-point pen etc., the shell of the microcapsule constituting the microcapsule layer is destroyed and the coloring agent enclosed in the shell is removed from the shell. And is fixed on the shell (that is, on the microcapsule layer), which is visible through the pigment layer and the foamed film layer. In this embodiment, as compared with the above-mentioned embodiment in which only the microcapsule layer is provided, the characters written on the pigment layer or the foamed film layer and the microcapsule layer existing under these layers are fixed. Since the colorant can be clearly identified with the naked eye, it is possible to more effectively prevent medical errors.

In addition, in this case, the color of the microcapsule layer (that is, the color of the microcapsule shell, the color of the colorant enclosed in the transparent or translucent shell, etc.)
Alternatively, the color of the colorant enclosed in the shell and the color of the pigment layer and the foamed film layer provided thereon can be the same color or a proper combination of different colors. In the case of a combination of different colors, for example, if the color of the pigment layer or the foamed film layer is light red, the color of the shell of the microcapsule is white, and the colorant to be enclosed in the shell is blue, characters such as a ballpoint pen can be used. Until you write, the light red color due to the upper pigment layer or the foamed film layer is visible, and if you write letters or symbols on this pigment layer or the foamed film layer with a black ink ballpoint pen, the shell of the microcapsule layer will break. The blue colorant encapsulated inside is leached and fixed on the microcapsule layer, and on the light red background, black characters and symbols, around the characters and symbols,
The blue that oozes and is fixed on the microcapsule layer below it (or purple due to the synergistic effect with the light red color of the background) can be visually recognized, and due to the difference in color contrast, letters and symbols can be more clearly visible. it can.

In this aspect, the pigment layer and the foamed film layer also act as a protective layer for the microcapsule layer existing under these layers, so that the shell of the microcapsule constituting the microcapsule layer is formed. The strength can be lowered, which means that the shell is surely torn when writing a character or the like with a ballpoint pen or the like, and the usability can be further improved.

In the embodiment in which the pigment layer and the foamed film layer are provided on the microcapsule layer, first, the surface of the syringe is roughened by the treatment as described above, and a coating material containing microcapsules is applied on the surface. A microcapsule layer is provided by coating or the like, and then a pigment layer is provided on the microcapsule layer by coating a paint containing a pigment, or a foamed film layer is formed by attaching a foamed film. It can be obtained by providing. Further, in the present invention, both the pigment layer and the foamed film layer may be provided on the microcapsule layer. For example, a microcapsule layer in which a colorant is enclosed in a transparent shell is provided, a white paint layer is provided thereon, and a foamed film layer is further provided thereon.

[0021]

DETAILED DESCRIPTION OF THE INVENTION FIG. 1 (A) (overall view), (B)
(A) (b) (partial sectional view) is a figure for demonstrating one Embodiment of the syringe by this invention, (A), the figure.
In (B), 1 is a syringe body, 11 is an outer cylinder, and 12
Is an inner cylinder, and an appropriate portion that does not overlap the scale 2 of the syringe 1 (outer cylinder 11) (in this example, a portion adjacent to the scale 2)
In parallel with the scale 2, there is provided at least one layer 3 of a roughened layer, a pigment layer, a microcapsule layer, and a foamed film layer on which writing with a ballpoint pen or the like is possible. FIG. 1B is a view for explaining an embodiment in which the surface 3 ′ of the syringe 1 on which the layer 3 is provided is flat, and FIG. 1A shows the outer cylinder 11 itself of the syringe. A part of the outer cylinder 11 has a flat surface, and the inner surface of the outer cylinder 11 has a curved surface, and the outer surface has a partially flat surface (that is, a part of the outer surface is scraped off). It was done. The syringe 1 shown in FIG. 1 has both an outer cylinder 11 and an inner cylinder 12 made of plastic, and the surface of the outer cylinder 11 on which the layer 3 is provided is roughened beforehand by sandblasting or the like, and the processed surface itself May be used as the rough surface processing layer 3 capable of writing with a ballpoint pen, or a microcapsule layer 3 capable of writing with a ballpoint pen may be formed by applying a pigment or microcapsules or a coating material containing both of them on the processed surface. Then, a foamed film may be attached to form the foamed film layer 3. In this example, it is assumed that the syringe 1 having a normal shape including the outer cylinder 11 having a circular cross section is provided with the microcapsule layer 3 by applying a coating material containing microcapsules. For example, if the color of the shell of the microcapsule that constitutes the microcapsule layer 3 is white and the color of the colorant enclosed in the shell is red, the appearance of the layer 3 is white.
Alternatively, it becomes slightly reddish white (that is, pale red) under the influence of the red coloring agent.

FIG. 2A is a diagram schematically showing a cross section of a portion of the microcapsule layer 3 of FIG. 1 in order to explain the microcapsule layer 3 of FIG. 1. In FIG. The same reference numerals are given, and 31 indicates the microcapsules forming the layer 3. On the white or pale red microcapsule layer 3, for example, with a ballpoint pen loaded with black ink, as shown in FIG. 2B, the patient name (“Taro”)
2B, the shell of the microcapsule 31 is broken by this writing pressure, the red colorant encapsulated in the shell is leached out of the shell and is fixed on the microcapsule layer 3, as shown in FIG. 2B. As described above, the periphery of the black patient name written on the white or pale red bag (on the microcapsule layer 3) is dyed red (the stained portion is indicated by 32). Therefore, for example, when a patient name is written with a ballpoint pen, even if the ink of the ballpoint pen is worn out and the patient name “Taro” is not clearly written with the ink of the ballpoint pen, the portion colored in red around “Taro” is The character "Taro" does not disappear and the patient name "Taro" can be clearly recognized by the colored portion.

FIG. 3 is a schematic sectional view for explaining another embodiment of the syringe according to the present invention. In FIG. 3, the same parts as those in FIGS. Four
Indicates a pigment layer or a foamed film layer provided on the microcapsule layer 3. In this example, the shell of the microcapsule 31 forming the microcapsule layer 3 has the color of the synthetic resin itself as the material of the shell (that is, no pigment is mixed in this synthetic resin), and The color of the colorant enclosed in is blue. In this case, the appearance of the microcapsule layer 3 will be a semitransparent color due to the synthetic resin of the shell, or will be a slightly bluish semitransparent synthetic resin color under the influence of the blue colorant. The pigment layer or the foamed film layer 4 provided on the microcapsule layer 3 is a commercially available white foamed film in this example, and has transparency to the extent that the color of an object existing under the film can be visually recognized. It is a foamed film layer to which an object is attached.

In the syringe 1 of this embodiment, for example, a ballpoint pen in which black ink is loaded on the semitransparent white foamed film layer 3 is used, as shown in FIG. ”), The shell of the microcapsule 31 is broken by this writing pressure, and the blue colorant encapsulated in the shell is leached out of the shell and fixed on the microcapsule layer 3, as shown in FIG. As shown in FIG. 5, the dyed portion 32 dyed in blue can be clearly recognized around the black patient name written on the semi-transparent white bag (on the foamed film layer 4). Further, instead of the ball-point pen, even if the patient's name is written with a plastic rod-like body that does not emit ink, the microcapsules 31 can be written with this rod-like body.
The patient was dyed in blue through the semi-transparent white foam film layer 4 as shown in FIG. Name part 3
2 can be clearly seen. And FIG.
In both cases (B) and (C), during complicated medical procedures,
The patient name never disappears.

[0025]

As described above, according to the medical error preventing syringe of the present invention, the following effects can be obtained. (1) It is possible to write on a syringe with a ballpoint pen, an oil-based pen, a pencil, and various other writing instruments. By writing the patient name etc. with these writing instruments, it is possible to inject an appropriate injection solution into the patient. Therefore, medical mistakes can be reliably prevented. (2) If the surface of the syringe on which the writable roughened layer, the pigment layer, the microcapsule layer, and the foamed film layer are provided is a flat surface, the writing operation becomes easy and clear writing can be performed. As a result, the written characters and the like can be clearly confirmed. (3) When the microcapsule layer is composed of microcapsules having a colorant encapsulated in the shell, the colorant that is encapsulated by breaking the shell when writing with a ballpoint pen or the like on the layer is used. When it is leached out of the shell and fixed on the microcapsule layer, when the patient name etc. is written with a ballpoint pen, etc., it is dyed with the coloring agent enclosed in the shell around the patient name etc. Therefore, the patient name and the like can be clearly recognized, and the prevention of medical mistakes can be further ensured. Moreover, in this case, it is possible to use a writing instrument that does not emit ink, such as a thin and hard rod. (4) Further, by providing a pigment layer or a foamed film layer on the microcapsule layer, by which the color of the colorant leaching outside the shell when the shell of the microcapsule constituting the layer is broken is provided. In addition, the medical error prevention effect can be further enhanced. In this case, since the pigment layer and the foamed film layer serve as a protective layer, the strength of the shell of the microcapsule forming the microcapsule layer can be reduced, and the shell is surely torn when writing with a ballpoint pen, Not only the usability is further improved, but also written characters are not lost and the effect of preventing medical errors is high.

[Brief description of drawings]

FIG. 1 is a view showing an embodiment of a medical error preventing syringe according to the present invention, (A) is a perspective view showing the whole, and (B) is a view showing the whole.
(A), (b) is a figure which shows the example of an embodiment in a partial cross section.

2A is a diagram schematically showing a cross section of a part of the syringe shown in FIG. 1, and FIGS. 2B and 2C are plan views for explaining an example of use of the syringe shown in FIG.

FIG. 3 is a view showing another embodiment of the medical error preventing syringe according to the present invention, schematically showing a partial cross section.

[Explanation of symbols]

1 Syringe body 2 Scale 3 Various layers capable of writing with a ballpoint pen 4 Foamed film layer provided on the microcapsule layer 31 Microcapsule 11 Outer cylinder of syringe 12 Inner cylinder of syringe

Claims (4)

[Claims] 1. At least one layer selected from at least one of a roughened layer, a pigment layer, a microcapsule layer, and a foamed film layer capable of writing with a ballpoint pen, is provided at an appropriate position which does not overlap the scale of the syringe. Syringe to prevent medical errors. 2. A surface of the syringe, on which at least one of the roughened layer, the pigment layer, the microcapsule layer, and the foamed film layer is provided, is a flat surface. Item 1. A syringe for medical error prevention according to item 1. 3. The microcapsule forming the microcapsule layer is one in which a dye or a pigment is encapsulated in the shell, and the shell is destroyed and encapsulated at least when writing to the layer with a ballpoint pen. 3. The medical error preventing syringe according to claim 1 or 2, wherein the dye or pigment is leached out of the shell and fixed on the microcapsule layer. 4. A microcapsule layer comprising microcapsules in which a dye or a pigment is encapsulated in a shell is provided under at least one of the pigment layer and the foamed film layer, and the microcapsule layer is a pigment. At least at the time of writing with a ball-point pen on the layer and the foamed film layer, the shell of the microcapsule is destroyed and the dye or pigment encapsulated in the shell is leached out of the shell, and the dye or pigment penetrates through the pigment layer and the foamed film layer. The syringe for preventing medical error according to claim 1 or 2, wherein the color of the dye or pigment is visible.