Drainage set, drain bag system, and drainage color indicator

Abstract

To provide a drainage set, a drain bag system, and a drainage color index for the drainage set or the drain bag system capable of facilitating early detection of postoperative complication such as postoperative bleeding, seam failure, bile spillage, pancreatic fistula, and lymph spillage.SOLUTION: There is provided: a drainage set obtained by packaging a drainage tube for allowing drainage to pass therethrough that is formed of a light permeable flexible material, a drain bag comprising a connection part for connecting itself to the drainage tube and a container body for forming a lumen for accumulating drainage, and a drainage color index having a display for indicating a plurality of hues which the drainage may exhibit; and the drainage color index which has a display for indicating a plurality of hues which drainage may exhibit with transparent color and / or gradation.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a drainage set, a drain-back system, and a drainage color indicator for a drainage set or a drain-back system. More specifically, the present invention aims to unify the recognition of the color of drained fluid, accurately and smoothly transmit color information, and facilitate the early detection of postoperative complications such as postoperative bleeding, suture failure, bile leakage, pancreatic juice leakage, lymphatic leakage, etc. The present invention relates to a drainage set, a drain-back system, and a drainage color indicator for a drainage set or a drain-back system.

Background Art

[0002] After surgery, drainage treatment is performed to discharge blood, exudate, etc. stored in the body cavity. For drainage treatment, for example, a tube (e.g., a Sorasik catheter, a trocar catheter, an indwelling catheter, etc.) that is indwelling in a patient so as to communicate with a desired body cavity, a drainage tube connected to the end of the indwelling tube to discharge the liquid in the body cavity, a drain bag for storing the liquid discharged through the drainage tube, etc. are used (see, for example, Patent Document 1). A general drainage system usually consists of a drainage tube, a drain bag, and a connector or adapter for connecting them as needed.

[0003] Since a sudden change in the patient's condition may lead to a serious situation, postoperative monitoring is extremely important. As one of the postoperative monitoring, observations such as the color, amount, viscosity, odor, etc. of the drain drainage obtained by drainage treatment are being carried out. However, the recognition of the color of drain drainage is likely to vary due to individual differences such as differences in color expressions by words and differences in the depth of experience. Such differences in recognition may hinder the early detection and treatment of postoperative complications. Therefore, in order to unify the recognition of the color of drain drainage, it has been proposed to use a color scale or a color comparison card that displays the color of the drained fluid (Non-Patent Documents 1, 2, 3, etc.). The color scale and color comparison card proposed here display the color of the drained fluid in an opaque color and are carried by doctors or nurses.

[0004] Therefore, Patent Document 2 proposes a chart for supporting drainage management that shows the correspondence between the possible colors exhibited by drainage fluid, the chromaticity of those colors, and the concentrations of components that may be contained in drainage fluid exhibiting those colors. This chart determines the chromaticity of the color exhibited by a target drainage fluid collected from a particular patient and estimates the concentrations of components that may be contained in the target drainage fluid. Patent Document 3 discloses a method for determining the concentration of liquid components in a container, which includes a step of detecting a color grid containing a color element array coupled to the container. This color grid displays the color of the drainage fluid in an opaque color. [Prior art documents] [Patent Documents]

[0005] [Patent Document 1] Japanese Patent Publication No. 2018-503474 [Patent Document 2] Japanese Patent Publication No. 2019-100699 [Patent Document 3] Japanese Patent Publication No. 2017-515106 [Non-patent literature]

[0006] [Non-Patent Document 1] Enomoto et al., "Development of a Drainage Fluid Color Scale," Proceedings of the 30th Tokyo Medical University Hospital Nursing Research Conference. [Non-Patent Document 2] Takahashi et al., "Re-examination of Drainage Fluid Color Scale," Recorded in the 31st Tokyo Medical University Hospital Nursing Research Conference. [Non-Patent Document 3] Ichimura et al., "Examination of Colorimetric Cards for Digitally Imaging Bloody Drainage," Journal of the Japan Society of Nursing Research, Vol. 23, No. 3, 2000, p. 391. [Overview of the Initiative] [Problems that the invention aims to solve]

[0007] The object of the present invention is to provide a drain bag set, a drain bag system, and a drain color indicator for a drain set or drain bag system that can standardize the recognition of drain color, transmit color information accurately and smoothly, and facilitate the early detection of postoperative complications such as postoperative bleeding, suture dehiscence, bile leakage, pancreatic fluid leakage, and lymph leakage. [Means for solving the problem]

[0008] In order to solve the above problems, we have completed the present invention, which encompasses the following forms.

[0009] [1] Drainage tube made of a light-transmitting flexible material for passing drainage fluid, A drain bag having a connector for connecting to a drainage tube and a container body that forms a lumen for collecting drainage fluid, A drainage color index that displays multiple possible colors of drainage fluid. A drainage set, which includes all of these items packaged together.

[0010] [2] Drainage tube made of a light-transmitting flexible material for passing drainage fluid, A drain bag having a connector for connecting to a drainage tube and a container body that forms a lumen for collecting drainage fluid, A drainage color index having a mechanism for attaching to a drainage tube and an indicator showing multiple possible colors of drainage fluid. A drain bag system equipped with the following features.

[0011] [3] A drainage color index having a mechanism for attaching to a drainage tube or drain bag and an indicator showing multiple possible colors of drainage fluid. [4] A drainage color index having a display that shows multiple possible colors of drainage in a transparent color, a display that shows multiple possible colors of drainage in a gradient, or a display that shows multiple possible colors of drainage in both a transparent color and a gradient.

[0012] [5] The drainage color index according to [3] or [4], further comprising a mechanism for attaching to a drainage tube so as to be movable along the axial and / or circumferential directions of the drainage tube. [6] A drainage color index according to any one of [3] to [5], further having a colorless, transparent portion or opening through which the drainage tube can be seen.

[0013] The drainage set of the present invention can further encompass the following embodiments.

[0014] [7] The drainage set according to any one of the preceding, further comprising a mechanism for attaching the drainage color indicator to the drainage tube, preferably a mechanism for attaching it to the drainage tube so as to be movable along the axial and / or circumferential directions of the drainage tube. [8] A drainage set as described in any one of the preceding paragraphs, wherein the drainage color index is an indicator of the multiple possible colors of the drainage, and the indicator is transparent and / or gradient. [9] The drainage color index further includes a representation of letters, numbers, codes, symbols and / or figures corresponding to each color, as described in any one of the preceding drainage sets.

[10] The drainage color indicator further has a colorless, transparent portion or opening that allows the drainage tube to be seen through, according to any one of the preceding descriptions.

[11] A drainage set as described in any one of the preceding descriptions, wherein the drainage color indicator is located on the edge of a colorless, transparent portion or opening, or at the end of the drainage color indicator, and displays a range of possible colors of the drainage.

[12] A drain bag having a pocket for storing a drainage color indicator, as described in any one of the preceding paragraphs.

[0015] The drain back system of the present invention can further encompass the following embodiments.

[0016] 〔13〕 The mechanism for attaching to the drainage tube is the drainage bag system according to any one of the preceding ones, which can attach the drainage color indicator to the drainage tube so as to be movable along the axial direction and / or circumferential direction of the drainage tube. 〔14〕 The drainage color indicator is the drainage bag system according to any one of the preceding ones, wherein the display indicating a plurality of colors that the drainage may exhibit is a transparent color and / or gradation. 〔15〕 The drainage color indicator is the drainage bag system according to any one of the preceding ones, further having a display indicating characters, numbers, symbols, signs and / or figures corresponding to each color. 〔16〕 The drainage color indicator is the drainage bag system according to any one of the preceding ones, further having a colorless transparent portion or opening that can be seen through the drainage tube. 〔17〕 The drainage color indicator is the drainage bag system according to any one of the preceding ones, wherein the display indicating a plurality of colors that the drainage may exhibit is at the edge of the colorless transparent portion or opening that can be seen through, or at the end of the drainage color indicator. 〔18〕 The drainage bag has a pocket for storing the drainage color indicator, which is the drainage bag system according to any one of the preceding ones.

[0017] The drainage color indicator of the present invention can further include the following forms.

[0018] 〔19〕 The drainage color indicator used in a drainage set or a drainage bag system, having a mechanism for attaching to the drainage tube and a display indicating a plurality of colors that the drainage may exhibit. 〔20〕 The drainage color indicator according to any one of the preceding ones, further having a display indicating characters, numbers, symbols, signs and / or figures corresponding to each color. 〔21〕 The drainage color indicator according to any one of the preceding ones, wherein the display indicating a plurality of colors that the drainage may exhibit is at the edge of the colorless transparent portion or opening that can be seen through, or at the end of the drainage color indicator.

Advantages of the Invention

[0019] The drainage set or drain bag system 1 of the present invention, and the drainage color indicator for the drainage set or drain bag system, allow for the rapid determination of the color of the drainage passing through the drainage tube or the drainage accumulated in the drain bag by displaying multiple possible colors of the drainage. This facilitates the early detection of postoperative complications such as postoperative bleeding, anastomotic leakage, bile leakage, pancreatic fluid leakage, and lymph leakage. Furthermore, according to the present invention, differences in color perception among nurses, doctors, etc., can be reduced even with varying levels of experience, and drainage color information can be accurately transmitted.

[0020] The drain bag system or drainage set of the present invention has a drainage color indicator attached to the drain bag and drainage tube, which prevents loss or forgetting to carry the drainage color indicator.

[0021] A drainage color indicator that also has a mechanism for attaching to a drainage tube or drain bag eliminates the need to carry it around at all times, preventing careless mistakes such as forgetting to bring it to the patient's bedside during rounds. A drainage color indicator with a mechanism for attaching to a drainage tube allows the indicator to be placed closer to the patient's body, making it easier to observe the color of the drainage fluid as close to the color immediately after discharge from the patient's body, before discoloration due to mixing of previously discharged and later discharged fluids, or due to air oxidation or photo-oxidation.

[0022] By attaching a drain color indicator to the drain tube 3 using a mechanism for attachment to the drain tube, it is easy to position the drain color indicator close to the liquid 3i flowing inside the drain tube, thereby enabling quick, easy, and accurate determination of the color of the drain fluid 3i. The container body 2 of the drain bag, made of a flexible material, is generally designed so that the inner lumen can be flattened by pressing the front and back surfaces together. Therefore, the distance between the front and back surfaces, i.e., the optical path length during observation, tends to fluctuate when drain fluid is stored. When the optical path length fluctuates, the observed color (especially the shade) of the drain fluid fluctuates. In contrast, the drain tube 3 generally has enough elasticity to maintain a predetermined diameter, so its diameter, i.e., the optical path length during observation, hardly fluctuates. The color of the drain fluid inside a drain tube with little fluctuation in optical path length exhibits little fluctuation (especially in shade).

[0023] In an embodiment in which the mechanism 10 for attaching to the drainage tube is capable of attaching a drainage color indicator so as to be movable along the axial and / or circumferential direction of the drainage tube 3, the drainage color indicator can be smoothly moved to a desired location on the drainage tube.

[0024] In a drainage color index that uses transparent colors to indicate multiple possible colors of drainage, it is easier to reproduce colors (including transparency) that closely resemble the actual color of the drainage compared to an index that uses opaque colors, thus facilitating accurate color comparison. In a drainage color index that displays multiple possible colors of drainage in a gradient, it is possible to easily compare the color of intermediate drainage colors compared to one that displays only representative colors.

[0025] In embodiments where the drainage color indicator has a colorless, transparent portion or opening 13 that allows the drainage tube to be seen through, the colorless, transparent portion or opening 13 can be placed on top of the drainage tube, and the color of the drainage 3i inside the drainage tube viewed through the colorless, transparent portion or opening can be compared with the color of the indicator 11 showing multiple possible colors of the drainage at adjacent positions while suppressing illusions caused by the colors of surrounding objects. In particular, in embodiments where the indicator showing multiple possible colors of the drainage is located on the edge of the colorless, transparent portion or opening, or at the end of the drainage color indicator, the closer the color of the drainage viewed through the colorless, transparent portion or opening or through the very edge of the drainage color indicator is to the color of the indicator showing multiple possible colors of the drainage, the less visible the boundary between the two becomes, making color identification easier. The size and shape of the transparent portion or opening are not particularly limited. Examples of transparent parts or openings include squares, rectangles, parallelograms, rhombuses, trapezoids, triangles, circles, and ovals. There may be one transparent part or opening, or two or more. Furthermore, the transparent part or opening is not limited to being installed in one location, but may be installed in two or more locations.

[0026] In embodiments further comprising a display 12 showing letters, numbers, codes, symbols and / or figures corresponding to each color, the color of the drainage fluid can be accurately conveyed from a person who directly compared the colors to a person who did not, using letters, numbers, codes, symbols and / or figures corresponding to each color. This reduces differences in color perception between individuals, enables accurate and smooth transmission of color information, and facilitates the early detection and treatment of postoperative complications. [Brief explanation of the drawing]

[0027] [Figure 1] This figure shows an example of the drain bag system of the present invention. [Figure 2] This figure shows an example of a drainage color index according to the present invention. [Figure 3] Figure 2 shows an example of the drainage color indicator of the present invention attached to a drainage tube. [Figure 4] This figure shows another example of the drainage color index of the present invention. [Figure 5] This figure shows another example of the drainage color index of the present invention. [Figure 6] Figure 5 shows an example of the drainage color indicator of the present invention being attached to a drainage tube. [Figure 7] This figure shows another example of the drainage color index of the present invention. [Figure 8] This figure shows another example of the drainage color index of the present invention. [Figure 9] This figure shows another example of the drainage color index of the present invention. [Figure 10] Figure 9 shows an example of the drainage color indicator of the present invention being attached to a drainage tube. [Figure 11] A front view (1), a side view (2), and a rear view (3) show another example of the drainage color index of the present invention. [Figure 12] The front view (1) and side view (2) show another example of the drainage color index of the present invention. [Modes for carrying out the invention]

[0028] The drainage set or drain bag system 1 of the present invention, and the drainage color indicator for the drainage set or drain bag system, will be described with reference to the drawings.

[0029] The drainage set of the present invention comprises a drainage tube 3, a drain bag, and a drainage color indicator, all packaged together. Packaging can be done in the same way as conventional drainage sets, for example, using transparent, translucent, or opaque packing bags. Furthermore, the drain bag system of the present invention includes a drainage tube 3, a drain bag, and a drainage color indicator. The drain bag system may have the drainage tube and drain bag connected at a predetermined location.

[0030] The drain bag has a connecting portion 6 for connecting to a drainage tube 3 and a container body 2 that forms a lumen for collecting drainage fluid 3i. The container body may be made entirely of a light-transmitting flexible material or an inflexible material, or a portion of it may be made of a light-transmitting flexible material or an inflexible material. The remaining portion may be made of a light-semitransparent or light-opaque flexible material or an inflexible material. To ensure that the color of the drained liquid accumulated in the container is not affected by objects in the background of the container, the container may be made of a colorless, transparent, flexible or inflexible material on the front and a white, opaque, flexible or inflexible material on the back. The drain bag may have holes 8 and 9 on the upper side of the container body through which strings, straps, clips, etc., can be passed for suspending, tying, or tightening the drain bag. The drain bag may also have a drainage section on the lower side of the container body. The drainage section allows for the discharge of wastewater accumulated in the container body. The wastewater discharged from the drainage section can be used for physical property testing such as color, odor, and viscosity, as well as chemical property testing such as analysis of contained components. The container body of the drain bag is not particularly limited in shape, and may be cylindrical, box-shaped, conical, or other shapes besides the flat shape shown in the figure.

[0031] The connection part 6 is not particularly limited as long as it has a structure that can be connected to the drainage tube 3. Examples of the connection part's structure include snap-fit, screw-on, snap-in, screw-in, and puncture. The connection part's structure is preferably a needleless mechanism to prevent needle stick injuries. The connection part may also have a mechanism to prevent backflow or leakage.

[0032] The drain bag may have a pocket for storing a drainage color indicator. In this embodiment, even if the drainage color indicator remains in the colorless, transparent pocket of the drain bag, it is possible to compare the color of the drainage in the drain bag with the color displayed on the drainage color indicator, or the indicator can be removed from the pocket of the drain bag and used to compare the color of the drainage in the drain bag or drainage tube with the color displayed on the drainage color indicator. The drain bag may also have a section on the front, etc., for writing the patient's name, attributes, etc.

[0033] The drainage tube is not particularly limited as long as it is made of a light-transmitting flexible material and is used to pass drainage fluid. It is preferable that the drainage tube is colorless and transparent so as not to affect the color of the drainage fluid flowing through it. The total light transmittance of the drainage tube is preferably as high as possible, for example, preferably 70% or more, more preferably 80% or more, and even more preferably 90% or more. The outer diameter of the drainage tube is not particularly limited, but for example, it is 1 to 30 mm. The wall thickness of the drainage tube is not particularly limited as long as it can maintain mechanical strength, but for example, it is 0.01 to 3 mm. The drainage tube 3 can be connected at one end to the connection point of the drain bag so that its respective lumen is in communication with the other end, and can be attached to an opening in the patient's body surface (e.g., nasal cavity, external fistula, etc.) via an appropriate device as needed.

[0034] The drainage color index of the present invention has a display that shows multiple possible colors of drainage. The color of drainage is influenced by the components it contains. For example, red blood cells are red, oxyhemoglobin is bright red, and deoxyhemoglobin is dark red. Pyrirubin is bile-colored or yellow, but turns green when exposed to air. Trypsin is red wine-colored. Depending on the proportion of these components, drainage exhibits various mixed colors. The drainage color index of the present invention can display these multiple colors in stepwise or gradient. The color display may be a colored transparent display (transparent color display) or a colored opaque display (opaque color display). The transparent color display, which is preferably used in the drainage color index of the present invention, easily reproduces the color of colored transparent drainage. This allows for more accurate comparison of colors. The color (especially the shade) of the drainage fluid in drainage tubes and drain bags changes depending on the difference in optical path length. Therefore, it is preferable that the transparent color indicator used in the drainage fluid color index of the present invention reproduces the color (including transparency) of the drainage fluid exhibited at that optical path length (inner diameter in the case of a colorless, transparent drainage tube, thickness in the case of a colorless, transparent, rigid material drain bag, etc.). Since the optical path length in a colorimetric tube is different from the optical path length in a drain bag or drainage tube, accurately determining the color of the drainage fluid in a drain bag or drainage tube based on color practice using a colorimetric tube required considerable experience. However, according to the present invention, accurate determination becomes easy even with limited experience. Furthermore, in situations where the background of the observation site affects the color, if the background of the observation site affects the drainage fluid color index with a colored, transparent indicator and the drainage fluid in a colorless, transparent drainage tube or drain bag equally, color illusions can be suppressed and accurate determination can be made.

[0035] The following color designations used in medical settings, which represent the state of the drainage fluid corresponding to the color, may be attached to the drainage fluid color indicator by displaying letters, numbers, codes, symbols, and / or figures. If the color is initially described as "bloody" immediately after surgery, and then changes to "slightly bloody" → "very bloody" → "pale yellow" → "very yellow," it can generally be considered normal. For example, according to the xy chromaticity diagram, the color progresses from the red area in the lower left, through the center of yellow or orange, to the colorless area in the center. If the color remains bloody for a long time after surgery, postoperative bleeding should be suspected. If the color is "bright red," the concentration of oxyhemoglobin is high, and arterial bleeding should be suspected. If the color is "dark red," the concentration of deoxyhemoglobin is high, and venous bleeding or old bleeding should be suspected. If the color changes from slightly bloody to "yellow," "pale yellow," or "very yellow" within 3 days post-surgery, it is necessary to determine whether the condition is progressing normally or if there is bile leakage, intestinal perforation, lymph leakage, etc. A comprehensive judgment should be made in conjunction with other information about the patient. If the discharge is "brownish-red," "dark yellow," or "ochre," it is thought to be due to a high concentration of pyrulpin, suggesting postoperative bile leakage. If there is fever and abdominal pain, peritonitis is suspected. If the discharge is "red wine color" or "brown," it is thought to be due to a high concentration of tryptosin, suggesting postoperative pancreatic fluid leakage. If the discharge is "milky white" or "pale yellow," it is thought to be due to a high concentration of fats and fatty acids, suggesting lymphatic leakage. If the discharge is "ochre-colored, fecal-like discharge with a fecal odor," intestinal anastomotic leakage or intestinal injury is suspected. These markings are preferably designed to be unaffected by washing, disinfecting, or sterilization processes in order to ensure accurate color comparison.

[0036] The drainage color indicator of the present invention may have a colorless, transparent portion or opening that can be seen through. By aligning the colorless, transparent portion or opening with the location of the drainage to be compared, the color of the drainage can be observed by bringing it closer to the indicator on the drainage color indicator through the colorless, transparent portion or opening. Furthermore, it is preferable that the colorless, transparent portion or opening be positioned opposite a white, opaque background surface, with the drainage tube or drain bag in between.

[0037] The drainage color indicator of the present invention allows for comparison of the color of the drainage fluid discharged from the patient with the color of the indicator. As a result, it is expected to facilitate the early detection of postoperative complications and to improve the consistency of understanding during handovers and reports between nurses and between nurses and doctors. The drainage color indicator of the present invention may have a mechanism for attaching it to a drainage tube. By providing such a mechanism, it is easier to maintain the drainage color indicator and the drainage tube in an adjacent state, and it becomes possible to check the color of the drainage fluid immediately after it has been discharged from the patient's body cavity, thereby enabling a more accurate understanding of the patient's condition. Examples of mechanisms for attaching it to a drainage tube include O-rings, C-rings, tubes, clips, adhesives, and glues. The mechanism for attaching it to a drainage tube may be one that can be attached to the drainage tube so as to be movable along the axial and / or circumferential direction of the drainage tube. By making it movable, the drainage color indicator of the present invention can be moved to a desired location by the observer, to a location unaffected by the background, or to a location where the color is easily observed. The mechanism for attaching to the drainage tube may be one that can be fixedly attached to a desired location on the drainage tube.

[0038] Next, various embodiments of the present invention will be shown. (First Embodiment) The drainage color indicator 4a of the first embodiment, shown in Figure 2, has a colorless, transparent cylindrical mechanism 10. As shown in Figure 3, by passing the drainage tube 3 through the mechanism 10, the drainage color indicator can be attached to the drainage tube in a tab form, movable in the axial or circumferential direction. The drainage color indicator 4a has a colored, transparent display 11 that shows four colors in stepwise and another four colors in gradient in two rows, and a text display 12 that shows the corresponding color names. Since the mechanism 10 is colorless and transparent, when the drainage tube 3 is observed by looking through the mechanism 10, preferably on a white background (for example, on a white sheet), the color of the drainage 3i can be compared with the color displayed 11 on the tag-shaped drainage color indicator. The influence of the background can be suppressed by making the back of the mechanism 10 opaque white and the front of the mechanism 10 colorless and transparent. The color displayed in color indication 11 is a reproduction of the color (transparent) of the drainage fluid that may be observed when it passes through the drainage tube 3 and the colorless, transparent cylindrical mechanism 10.

[0039] (Second embodiment) As shown in Figure 4, the drainage color index 4b has the same configuration as the drainage color index 4a, except that the display 11 and display 12 have been changed to a vertical orientation.

[0040] (Third embodiment) As shown in Figure 5, the drainage color indicator 4c has a colorless, transparent cylindrical mechanism 10. As shown in Figure 6, by passing the drainage tube 3 through the mechanism 10, the drainage color indicator can be attached to the drainage tube in a wrap-around form, allowing it to move axially or circumferentially. The drainage color indicator 4c has two rows of colored, transparent displays 11, showing four colors in stepwise and another four colors in gradient, along with corresponding color names indicated by text displays 12. A colorless, transparent section 13 is provided between the two rows of displays 11. When the drainage tube 3 is viewed through the colorless, transparent section 13 against a white background, the color of the drainage 3i can be compared with the color display on the wrap-around drainage color indicator without being affected by the background. Since the color indicator 11 and the colorless transparent portion 13 are adjacent by an edge, the edge of the color indicator 11 that is close in color to the drainage fluid 3i becomes less noticeable, making it easier to determine the color. The same effect can be achieved by making the opposite surface of the colorless transparent portion 13, which is sandwiching the drainage tube 3, white and opaque.

[0041] (Fourth embodiment) As shown in Figure 7, the drainage color index 4d has the same configuration as the drainage color index 4c, except that the display 11 and display 12 have been changed to a vertical orientation.

[0042] (Fifth embodiment) As shown in Figure 8, the drainage color index 4e has the same configuration as the drainage color index 4c, except that the display 12 has been changed to a number.

[0043] (Sixth Embodiment) The drainage color indicator 4f shown in Figure 9 has a rectangular cylindrical mechanism 10. As shown in Figure 10, by passing the drainage tube 3 through the mechanism 10, the drainage color indicator 4f can be attached to the drainage tube in a wrap-around form, allowing it to move axially or circumferentially. The drainage color indicator 4f has colored transparent displays 11 on the front and back, each showing four different colors in stepwise and another four colors in gradient, respectively, along with corresponding color names indicated by text displays 12. A colorless transparent portion 13 is provided on the side (Figure 11). When the drainage tube 3 is viewed through the colorless transparent portion 13 against a white background, the color of the drainage 3i can be compared with the color display on the wrap-around drainage color indicator without being affected by the background. Since the color indicator 11 and the colorless transparent portion 13 are adjacent by an edge, the edge of the color indicator 11 that is close in color to the drainage fluid 3i becomes less noticeable, making it easier to determine the color. The same effect can be achieved by making the opposite surface of the colorless transparent portion 13, which is sandwiching the drainage tube 3, white and opaque.

[0044] (Seventh Embodiment) As shown in Figure 12, the drainage color index 4g has the same configuration as the drainage color index 4f, except that the display 11 and display 12 have been changed to a vertical orientation.

[0045] The drainage set or drain bag system of the present invention, and the drainage color indicator for the drainage set or drain bag system, are not limited to the above-described forms. The shape, structure, and materials of each component may be substituted, changed, modified, or omitted to the extent that it does not contradict the spirit of the present invention. Furthermore, components known in the art may be added to the extent that it does not contradict the spirit of the present invention, and it is understood that all of these fall within the scope of the present invention. [Explanation of symbols]

[0046] 1: Drain bag system 2: Container body 3: Drainage tube 3i: Drainage fluid in the drainage tube 4a,4b,4c,4d,4e,4f,4g,4h,4i: Drainage color index 5: Fistula or nasal cavity 6: Connection part 7: Drainage section 8: Hole for threading a string or cord through. 9: Hole for threading a belt, clip, etc. 10: Mechanism for attaching to drainage tube 11: A colorless, transparent indicator showing multiple possible colors of the drainage fluid. 12: Display indicating the name or other details corresponding to the color. 13: Colorless, transparent parts or openings

Claims

1. A drainage tube made of a light-transmitting flexible material for passing drainage fluid. A drain bag having a connecting part for connecting to the drainage tube and a container body for forming a lumen for collecting drainage fluid, and A drainage color indicator having a color display that shows multiple possible colors of drainage fluid arranged in a transparent color, or multiple possible colors of drainage fluid arranged in a transparent color with a gradient, and a color designation display that indicates the color name used in a medical setting to represent the state of the drainage fluid corresponding to the said color, and having a mechanism for attaching it so that it is positioned close to the drainage tube. A drainage set, which includes all of these items packaged together.

2. A drainage tube made of a light-transmitting flexible material for passing drainage fluid. A drain bag having a connecting part for connecting to the drainage tube and a container body for forming a lumen for collecting drainage fluid, and The drainage color index comprises a color display that shows multiple possible colors of drainage arranged in a transparent color, or multiple possible colors of drainage arranged in a transparent color with a gradient, and a color designation display that shows the color names used in a medical setting that represent the state of the drainage corresponding to the said color. A drain bag system in which the drainage color indicator is positioned so as to be adjacent to the drainage tube.

3. A drainage color index having a color display that shows multiple possible colors of drainage fluid arranged in a transparent color or multiple possible colors of drainage fluid arranged in a transparent color and gradient, and a color designation display that shows the color designation used in a medical setting that represents the state of the drainage fluid corresponding to the said color, and having a mechanism for attaching it so that it is positioned close to the drainage tube.

4. The drainage color indicator according to claim 3, wherein the mechanism for attaching it in close proximity to the drainage tube can be attached to the drainage tube so as to be movable along the axial and / or circumferential directions of the drainage tube.

5. The drainage color indicator according to claim 3 or 4, further comprising a colorless, transparent portion or opening that allows the drainage tube to be seen through.

Images