Drainage bag with colorimetric card and flow monitoring function
By installing a rotary colorimetric card and a flow monitor on the drainage bag, the problems of inaccurate color judgment and insufficient flow monitoring of the drainage bag are solved, enabling rapid and accurate comparison and monitoring of the color and flow of the drainage fluid, thus improving the work efficiency of medical staff and the accuracy of diagnosis.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE UNIVERSITY-TOWN HOSPITAL AFFILIATED TO CHONGQING MEDICAL UNIVERSITY
- Filing Date
- 2025-02-10
- Publication Date
- 2026-05-08
AI Technical Summary
Existing drainage bags rely on visual observation of the drainage fluid color, which is easily affected by subjective factors, leading to inaccurate judgment. Furthermore, they lack built-in flow monitoring functions, affecting the timeliness and accuracy of diagnosis.
A rotary colorimetric card and a flow monitor are installed on the drainage bag. The colorimetric card enables rapid and accurate comparison of the color of the drainage fluid, and the flow monitor calculates the drainage volume by monitoring the number of drops with infrared light. The total drainage volume is determined by combining the number of drops with the volume per drop.
It improves the work efficiency of medical staff, reduces subjective errors, ensures the objectivity and accuracy of drainage fluid color and flow, records patients' conditions in a timely and accurate manner, and supports the assessment of postoperative recovery and fluid balance.
Smart Images
Figure CN224207146U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical supplies technology, specifically to a drainage bag with a colorimetric card and flow monitoring. Background Technology
[0002] The commonly used drainage bag is a disposable drainage bag. It is used to drain blood or fluid from the inside of the body or deep in a local surgical area after surgery. The end of the drainage tube is connected to a special transparent plastic bag to hold the drained fluid. It is mainly used by clinical patients to store urine or drain waste fluid such as abdominal effusion.
[0003] Currently, in clinical treatment, medical staff need to observe changes in the color of drainage fluid to assess a patient's condition. However, the inventors of this application, through clinical experience, have found that existing methods typically rely on visual observation, which is susceptible to subjective factors and inaccurate color interpretation, leading to diagnostic errors. Medical staff need to observe changes in the color of drainage fluid to determine a patient's recovery or disease status. Removing the drainage bag and taking it to the diagnostic room for assessment is not only cumbersome and time-consuming but also affects the timeliness of diagnosis and reduces the efficiency of medical staff, further complicating the recording of patient conditions. Furthermore, nurses often manage multiple patients, some requiring timely monitoring of drainage volume, such as hourly urine output. Nurses may be preoccupied with other tasks, leading to delays in monitoring. Traditional drainage bags currently lack built-in flow monitoring, making it difficult for medical staff to accurately grasp the patient's drainage volume, which is crucial for assessing postoperative recovery, fluid balance, and potential complications. Utility Model Content
[0004] In view of the fact that medical staff usually rely on visual observation of the color of the drainage fluid in the drainage bag, which is easily affected by subjective factors and may lead to inaccurate judgment, and that traditional drainage bags do not have built-in flow monitoring technology, this utility model provides a drainage bag with a colorimetric card and flow monitoring.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0006] A drainage bag with a colorimetric card and flow monitoring includes a drainage bag body, a Murphy dropper, and a flow monitor. The outer surface of the drainage bag body is marked with volume scale lines and has a rotatable turntable colorimetric card. The upper end of the drainage bag body is fixedly connected to the lower end of the Murphy dropper through a connecting tube. The upper end of the Murphy dropper is fixedly connected to a drainage tube. The flow monitor is clamped on the outer wall of the Murphy dropper.
[0007] Compared with existing technologies, the drainage bag with colorimetric card and flow monitoring provided by this utility model has two advantages. First, by rotatably mounting a turntable colorimetric card directly on the outer surface of the drainage bag, medical staff can quickly and accurately compare the color of the drainage fluid as it enters the bag. This improves the efficiency of medical staff and reduces errors caused by subjective judgment, greatly enhancing the practicality of the drainage bag. Second, by installing a Murphy drip tube between the connecting tube at the upper end of the drainage bag and the drainage tube, and clamping a flow monitor on the outer wall of the Murphy drip tube, the flow monitor can accurately determine the drainage volume by using infrared monitoring of the number of drainage drops in the Murphy drip tube and calculating the total drainage volume using the formula: number of drops × volume per drop = total drainage volume. This enables accurate monitoring of the drainage volume from the patient, which is crucial for assessing the patient's postoperative recovery, fluid balance, and monitoring potential complications. Thus, the drainage bag technology with colorimetric cards and flow monitoring is simple to operate, saves time and effort, and can effectively improve the work efficiency of medical staff. It ensures the objectivity of the color and properties of the drainage fluid and the accuracy of the drainage volume, enabling medical staff to record the patient's condition more conveniently, accurately, and promptly.
[0008] Furthermore, the rotary colorimeter card includes a connecting seat integrally formed on the outer surface of the drainage bag. A support column is fixedly connected to the middle of one end of the connecting seat away from the outer surface of the drainage bag. A colorimeter disc is rotatably sleeved on the support column. The outer surface of the colorimeter disc has a color gradient. A manual knob is fixedly connected to the middle of the outer surface of the colorimeter disc. A receiving box is fixedly connected to the side wall of the connecting seat. The colorimeter disc is completely received in the receiving box, and part of the manual knob extends out of the receiving box. The surface of the receiving box has a contrast opening to facilitate the exposure of part of the color gradient.
[0009] Furthermore, the support column has an elastic protrusion on its body, the colorimeter has a mounting groove in the middle, and the mounting groove has an annular recess on its circumferential wall. When the colorimeter is fitted onto the support column through the mounting groove, the elastic protrusion is located in the annular recess.
[0010] Furthermore, the size of the contrast opening corresponds to a color setting area of the color gradient on the color wheel.
[0011] Furthermore, a drain valve is provided at the lower end of the drainage bag. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the drainage bag with colorimetric card and flow monitoring provided by this utility model.
[0013] Figure 2 yes Figure 1A schematic diagram of the structure of a rotary colorimeter card.
[0014] In the diagram: 1. Drainage bag body; 2. Murphy dropper; 3. Flow monitor; 4. Volume scale line; 5. Rotary colorimetric card; 51. Connecting seat; 52. Support column; 521. Elastic protrusion; 53. Colorimetric disk; 531. Mounting groove; 532. Annular recess; 54. Manual knob; 55. Storage box; 56. Contrast opening; 6. Connecting tube; 7. Drainage tube; 8. Drainage valve. Detailed Implementation
[0015] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.
[0016] In the description of this utility model, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0018] Please refer to Figure 1 As shown, this utility model provides a drainage bag with a colorimetric card and flow monitoring, including a drainage bag body 1, a Murphy dropper 2, and a flow monitor 3. The drainage bag body 1 is made of transparent material. The outer surface of the drainage bag body 1 is marked with volume scale lines 4 and has a rotatable turntable colorimetric card 5. The upper end of the drainage bag body 1 is fixedly connected to the lower end of the Murphy dropper 2 through a connecting tube 6. The upper end of the Murphy dropper 2 is fixedly connected to a drainage tube 7. The flow monitor 3 is clamped on the outer wall of the Murphy dropper 2. Specifically, it can be clamped on the outer wall of the Murphy dropper 2 through an existing groove on the flow monitor 3.
[0019] Compared with existing technologies, the drainage bag with colorimetric card and flow monitoring provided by this utility model has two advantages. First, by rotatably mounting a turntable colorimetric card directly on the outer surface of the drainage bag, medical staff can quickly and accurately compare the color of the drainage fluid as it enters the bag. This improves the efficiency of medical staff and reduces errors caused by subjective judgment, greatly enhancing the practicality of the drainage bag. Second, by installing a Murphy drip tube between the connecting tube at the upper end of the drainage bag and the drainage tube, and clamping a flow monitor on the outer wall of the Murphy drip tube, the flow monitor can accurately determine the drainage volume by using infrared monitoring of the number of drainage drops in the Murphy drip tube and calculating the total drainage volume using the formula: number of drops × volume per drop = total drainage volume. This enables accurate monitoring of the drainage volume from the patient, which is crucial for assessing the patient's postoperative recovery, fluid balance, and monitoring potential complications. Thus, the drainage bag technology with colorimetric cards and flow monitoring is simple to operate, saves time and effort, and can effectively improve the work efficiency of medical staff. It ensures the objectivity of the color and properties of the drainage fluid and the accuracy of the drainage volume, enabling medical staff to record the patient's condition more conveniently, accurately, and promptly.
[0020] As a specific embodiment, the flow monitor 3 can be implemented using a flow monitor of the brand QILY and model A516. In addition to the function of monitoring the flow rate of the drained fluid, alarm parameters such as the upper limit of drainage can be set on the flow monitor 3. When the drainage reaches the upper limit, an alarm will be triggered to promptly remind medical staff, reduce potential conflicts between medical staff and patients, and ensure the quality of medical care for patients. At the same time, the flow monitor 3 can also be set to view the historical drainage volume per unit time to facilitate checking whether there are any missed drainage volumes. This is mainly used in clinical practice, where nurses usually manage multiple patients, and some patients need timely monitoring of drainage volume, such as hourly urine output. Nurses may be busy with other tasks and thus fail to monitor in a timely manner.
[0021] For a specific embodiment, please refer to Figure 2As shown, the rotary colorimeter card 5 includes a connecting seat 51 integrally formed on the outer surface of the drainage bag body 1. A support column 52 is fixedly connected to the middle of one end of the connecting seat 51 away from the outer surface of the drainage bag body 1. A colorimeter disc 53 is rotatably sleeved on the support column 52. The outer surface of the colorimeter disc 53 is provided with a color gradient. A manual knob 54 is fixedly connected to the middle of the outer surface of the colorimeter disc 53. A receiving box 55 is fixedly connected to the side wall of the connecting seat 51. The colorimeter disc 53 is completely received in the receiving box 55, and part of the manual knob 54 extends out of the receiving box 55. The surface of the receiving box 55 has a contrast opening 56 to facilitate the exposure of part of the color gradient. Thus, except for the part of the color gradient opposite to the contrast opening 56, the rest of the color gradient on the colorimeter disc 53 is covered by the receiving box 55, while only part of the manual knob 54 is received in the receiving box 55. Using the rotary colorimetric card 5 structure provided in this embodiment, when medical staff compare the color of the drainage fluid, they can rotate the manual knob 54 to drive the colorimetric card 53 to rotate in the receiving cavity of the receiving box 55. At this time, the color gradient on the colorimetric card 53 will be covered by the receiving box 55, and only part of the color gradient will be exposed at the comparison opening 56 on the receiving box 55. During the rotation of the colorimetric card 53, the color gradient on the colorimetric card 53 will gradually be exposed from the comparison opening 56 of the receiving box 55. Medical staff can compare it with the color of the drainage fluid to quickly and accurately judge the color of the drainage fluid.
[0022] For a specific embodiment, please refer to Figure 2 As shown, the support post 52 has an elastic protrusion 521 on its column body, and the colorimeter 53 has an installation groove 531 in the middle. The wall of the installation groove 531 has an annular recess 532 on its circumferential side. When the colorimeter 53 is fitted onto the support post 52 through the installation groove 531, the elastic protrusion 521 is located in the annular recess 532. Thus, when installing the colorimeter 53 and the manual knob 54 onto the support post 52, simply press the installation groove 531 on the colorimeter 53 down along the support post 52. The elastic protrusion 521 on the support post 52 will deform and be pressed into the annular recess 532 when squeezed by the wall of the installation groove 531. After being freed from the squeeze of the wall of the installation groove 531, the elastic protrusion 521 on the support post 52 will recover its deformation, thereby achieving a rotatable fit of the colorimeter 53 onto the support post 52.
[0023] In a preferred embodiment, the size of the contrast opening 56 corresponds to a color setting area of the color gradient on the colorimeter 53. Thus, when the colorimeter 53 is rotated in the receiving cavity of the receiving box 55 by rotating the manual knob 54, only one color setting area can be exposed from the contrast opening 56 on the receiving box 55, while the remaining color gradients are covered by the receiving box 55. This effectively prevents different colors from interfering with the color comparison of the drainage fluid.
[0024] For a specific embodiment, please refer to Figure 1 As shown, the lower end of the drainage bag body 1 is provided with a drain valve 8, which can promptly drain the drainage fluid inside the drainage bag body 1 out of the bag.
[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A drainage bag with a colorimetric card and flow monitoring, comprising a drainage bag body (1), a Murphy dropper (2), and a flow monitor (3), characterized in that, The outer surface of the drainage bag (1) is marked with volume scale lines (4) and a turntable colorimetric card (5) is rotatably provided. The upper end of the drainage bag (1) is fixedly connected to the lower end of the Murphy dropper (2) through a connecting tube (6). The upper end of the Murphy dropper (2) is fixedly connected with a drainage tube (7). The flow monitor (3) is clamped on the outer wall of the Murphy dropper (2).
2. The drainage bag with colorimetric card and flow monitoring according to claim 1, characterized in that, The rotary colorimeter card (5) includes a connecting seat (51) integrally formed on the outer surface of the drainage bag body (1). A support column (52) is fixedly connected to the middle of one end of the connecting seat (51) away from the outer surface of the drainage bag body (1). A colorimeter disc (53) is rotatably sleeved on the support column (52). The outer surface of the colorimeter disc (53) is provided with a color gradient. A manual knob (54) is fixedly connected to the middle of the outer surface of the colorimeter disc (53). A receiving box (55) is fixedly connected to the side wall of the connecting seat (51). The colorimeter disc (53) is completely received in the receiving box (55) and part of the manual knob (54) extends out of the receiving box (55). The surface of the receiving box (55) is provided with a contrast opening (56) to facilitate the exposure of part of the color gradient.
3. The drainage bag with colorimetric card and flow monitoring according to claim 2, characterized in that, The support column (52) has an elastic protrusion (521) on its column body, and the colorimeter (53) has an installation groove (531) in the middle. The wall of the installation groove (531) has an annular recess (532) in the circumferential direction. When the colorimeter (53) is sleeved on the support column (52) through the installation groove (531), the elastic protrusion (521) is located in the annular recess (532).
4. The drainage bag with colorimetric card and flow monitoring according to claim 2, characterized in that, The size of the contrast opening (56) corresponds to a color setting area of the color gradient on the color wheel (53).
5. The drainage bag with colorimetric card and flow monitoring according to claim 1, characterized in that, The lower end of the drainage bag (1) is provided with a drain valve (8).