Medical drainage bag

Abstract

The utility model relates to a medical drainage bag which comprises a drainage bag and a drainage tube, the tail end of the drainage tube is connected with the drainage bag, the drainage tube is connected with a sampling branch tube, the sampling branch tube is connected with a sampling bag through a sleeve, the sleeve comprises an outer sleeve and an inner sleeve, the inner wall of the outer sleeve is connected with a partition plate, a through opening is formed in the center of the partition plate, and a sampling valve is installed in the through opening. A driving valve rod is arranged in the inner sleeve; a positioning clamp is connected in the hanging hole and comprises a fixing sleeve internally provided with a cavity, one end of the cavity is connected with a positioning baffle, the other end of the cavity is connected with a limiting baffle, a compression spring is arranged between the positioning baffle and the limiting baffle, one end of the compression spring is connected with a sliding block, and the face, right facing the limiting baffle, of the sliding block is connected with a semi-arc clamping needle concentric with the fixing sleeve. The needle tip of the clamping needle sequentially penetrates through the limiting baffle and the positioning baffle. Drainage liquid can be sampled conveniently, meanwhile, the drainage bag and a bed sheet are fixed conveniently through the positioning clamp, safety is high, hands are not prone to being pricked, and using convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a medical drainage bag. Background Art

[0002] After surgery, the patient will have bleeding, fluid accumulation, etc. in the postoperative part of the body, so a drainage tube will be inserted into the abdomen or chest cavity, and then fixed to the skin with sutures. A drainage bag will be connected to the bottom of the drainage tube, and the exuded fluid will be drained into the drainage bag through the drainage tube, so that the accumulated fluid in the area can be cleaned up in time.

[0003] In order to fully understand the patient's recovery status, doctors need to regularly draw samples of drainage fluid from the drainage tube and perform laboratory analysis on them. Medical staff need to prepare sampling containers in advance and then pour the pleural effusion in the drainage bottle into the prepared container for testing, which is very inconvenient. In the process of pouring, external pollutants such as bacteria and cell fragments may be introduced, resulting in a decrease in the sampling quality, which in turn affects the accuracy of the test results. Moreover, this sampling method can only mix and cannot control the acquisition of drainage fluid in a specific period of time such as the front, middle or tail section. Impure sampling may also lead to inaccurate test results.

[0004] In addition, the drainage bags commonly used at present are generally fixed to the bed sheets by pins. When using the existing pins, they need to be squeezed by fingers to dislocate the two ends, so as to ensure that the needle tip pops out of the holder and then penetrates. This is not only inconvenient to operate, but also very easy to get pricked during operation, causing harm to the user. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a medical drainage bag, which is convenient for sampling the drainage fluid and can improve safety when fixed to a bed sheet, avoiding pricking hands, thereby improving safety and convenience of use.

[0006] The utility model is realized through the following technical solutions:

[0007] A medical drainage bag is provided, comprising a drainage bag and a drainage tube, wherein the end of the drainage tube is connected to the drainage bag, a hanging hole for hooking is reserved on the drainage bag, a sampling branch tube is connected to the drainage tube, the sampling branch tube is detachably connected to the sampling bag through a sleeve, the sleeve comprises an outer sleeve connected to the end of the sampling branch tube and an inner sleeve connected to the inlet of the sampling bag, a partition which can separate the inner cavity of the outer sleeve into an upper cavity and a lower cavity is connected to the inner wall of the outer sleeve, a through opening is opened in the center of the partition, and a sampling valve located in the upper cavity is embedded and installed in the through opening, a driving valve stem which cooperates with the sampling valve is arranged in the inner sleeve, and the driving valve stem can be opened to take out blood after the outer sleeve is connected to the inner sleeve. The sampling valve is closed after the outer sleeve is separated from the inner sleeve; a positioning clamp is connected in the hanging hole of the drainage bag, the positioning clamp includes a fixing sleeve in an arc shape, a cavity is arranged in the fixing sleeve and sealing plates are arranged at both ends, a positioning baffle is connected to the sealing plate near one end in the cavity, a limiting baffle is connected to the sealing plate near the other end in the cavity, a compression spring is arranged between the positioning baffle and the limiting baffle in the cavity, a slider that slides with the cavity is connected to one end of the compression spring near the limiting baffle, a semicircular arc-shaped card needle that is concentric with the fixing sleeve is connected to the side of the slider facing the limiting baffle, and the needle tip of the card needle passes through the limiting baffle and the positioning baffle in sequence.

[0008] Furthermore, an arc-shaped through groove is formed on the outer wall of the fixing sleeve from the limit baffle plate to the positioning baffle plate, and a lever is vertically connected to the sliding block and extends out of the fixing sleeve through the arc-shaped through groove.

[0009] By providing an arc-shaped through groove in conjunction with a lever, the lever can be used to push the slider to drive the card needle to disengage from the positioning baffle, so that the card needle can be inserted into the bed sheet to complete the fixation. After releasing the lever, the elastic force of the compression spring can drive the card needle to automatically reset, and the drainage bag can be easily fixed.

[0010] Furthermore, the sampling valve includes a cylindrical valve body, a sampling port connected to the lower cavity is formed on the lower end surface of the cylindrical valve body, sampling ports connecting the upper cavity with the inner cavity of the cylindrical valve body are evenly formed in the circumference of the lower end of the cylindrical valve body, a blocking piston is slidably connected to the inner wall of the cylindrical valve body, the blocking piston is connected to the upper end surface of the cylindrical valve body by a spring, and when the spring is in a natural state, the blocking piston blocks the sampling port.

[0011] A sealing piston is connected to the cylindrical valve body of the sampling valve through a spring. When the spring is in a natural state, the sealing piston seals the sampling port, so that the end of the sampling branch pipe is sealed in a non-sampling state. In a sampling state, the sealing piston is moved upward by squeezing the driving valve stem, connecting the sampling port and the outlet port, so that the drainage fluid can enter the sampling bag to complete the sampling.

[0012] Further, the driving valve stem is clamped to the inner wall of the inner sleeve through a support frame. The support frame includes an outer support ring and an inner support ring. The outer support ring and the inner support ring are concentrically arranged and are connected by a connecting rod in the radial direction. One end of the driving valve stem is fixed in the inner support ring, and the other end of the driving valve stem extends through the sample outlet into the cylindrical valve body and can abut against the plugging piston.

[0013] The driving valve stem is fixed to the inner wall of the inner sleeve through a support frame. When the inner sleeve is connected to the outer sleeve, the upper end of the driving valve stem extends into the cylindrical valve body through the sample outlet to extrude the plugging piston, thereby facilitating the communication of the sampling port, the lower chamber, and the sample outlet, and further enabling the drainage fluid to enter the sampling bag.

[0014] Further, internal threads are provided on the inner wall of the outer sleeve, and mating external threads are provided on the outer arm of the inner sleeve. The outer sleeve and the inner sleeve are threadedly connected.

[0015] The threaded connection between the outer sleeve and the inner sleeve ensures the stability of the connection.

[0016] Further, the bag body of the sampling bag is a transparent bag body, and a scale line is provided on one side of the bag body.

[0017] The sampling bag is set as a transparent bag body with scale values, which can facilitate medical staff to observe the volume of the drainage fluid and is convenient for controlling the sampling volume.

[0018] Further, a plug with a built-in sealing ring is threadedly connected to the inner sleeve at the inlet of the sampling bag.

[0019] A plug is provided at the inlet of the sampling bag, and the sampling bag can be sealed by the threaded connection between the plug and the inner sleeve when sampling is completed, avoiding the entry of impurities or the leakage of the drainage fluid during the transfer process.

[0020] Preferably, the drainage tube is a flexible tube, and a stop clamp is provided between the sampling branch tube and the drainage bag of the drainage tube.

[0021] The drainage tube is set as a flexible tube, and in combination with the use of a stop clamp, when sampling is required, the stop clamp can be used to clamp the drainage tube, forcing the drainage fluid to enter the sampling bag through the sampling branch tube to complete sampling, which is convenient for sampling operation.

[0022] Further, an exhaust branch tube is also connected to the upper part of the sampling branch tube of the drainage tube. The exhaust branch tube is inclined upward, and a plug is connected to the end of the exhaust branch tube. An exhaust hole is opened in the center of the plug, and a sealing plug is inserted into the exhaust hole.

[0023] By providing an exhaust branch tube on the drainage tube, the air in the drainage bag and the drainage tube can be discharged in time by using the exhaust hole provided on the plug, so that the drainage fluid can be discharged into the drainage bag in time without adhering to the inner wall of the drainage tube.

[0024] The beneficial effects of the present utility model:

[0025] By providing a sampling branch pipe and connecting a sampling bag through a sleeve, the utility model facilitates sampling the drainage fluid at any time as needed. Meanwhile, compared with the traditional mixed sampling method, the sampling of the utility model can select the drainage fluid at different time periods for sampling, which is very convenient to operate, and can effectively avoid introducing external pollutants, effectively ensuring the accuracy of the detection results.

[0026] The drainage bag of the utility model can be connected and fixed to the patient's bedsheet by using a positioning clip. During operation, only need to move the lever, drive the needle to disengage from the positioning baffle by the lever, and align the opening with the bedsheet. Release the lever, and under the elastic force of the compression spring, the needle can be reset and penetrate through, completing the puncture of the needle into the bedsheet, greatly improving the safety and convenience of use, and effectively avoiding the situation of pricking hands.

[0027] In addition, an exhaust branch pipe is inclined above the sampling branch pipe of the drainage tube of the utility model. By opening the plug in the exhaust hole of the plug head, the air in the drainage bag and the drainage tube can be discharged in time, so that the drainage fluid can be discharged into the drainage bag in time without adhering to the inner wall of the drainage tube, avoiding the problem of poor drainage fluid flow and reducing the occurrence of drainage tube blockage. Description of the Drawings

[0028] Figure 1 Schematic diagram of the installation of the sampling bag on the drainage tube in Embodiment 1 of the utility model.

[0029] Figure 2 Schematic diagram of the sleeve and its internal cross-section in Embodiment 1 of the utility model.

[0030] Figure 3 Schematic diagram of the internal cross-section of the sleeve during sampling in Embodiment 1 of the utility model.

[0031] Figure 4 Schematic diagram of the structure of the positioning clip in Embodiment 1 of the utility model.

[0032] Figure 5 Schematic cross-sectional view of the positioning clip in Embodiment 1 of the utility model.

[0033] Figure 6 Schematic diagram of the structure of the drainage tube and the drainage bag in Embodiment 2 of the utility model.

[0034] Figure 7 For Figure 6 Enlarged schematic diagram at position A in

[0035] As shown in the figure:

[0036] 1. Drainage bag, 2. Drainage tube, 3. Sampling branch tube, 4. Sleeve, 5. Sampling bag, 6. Scale line, 7. Outer sleeve, 8. Inner sleeve, 9. Partition board, 10. Upper cavity, 11. Lower cavity, 12. Cylindrical valve body, 13. Spring, 14. Sealing piston, 15. Sampling port, 16. Sampling outlet, 17. Support frame, 18. Driving valve rod, 19. Fixed sleeve, 20. Sealing plate, 21. Needle, 22. Arc-shaped through groove, 23. Lever, 24. Cavity, 25. Limit baffle, 26. Slide block, 27. Positioning baffle, 28. Compression spring, 29. Stop flow clamp, 30. Exhaust branch tube, 31. Plug, 32. Blockage. Detailed implementation mode

[0037] To clearly illustrate the technical features of this solution, the following will elaborate on this solution through specific implementation modes.

[0038] Example 1:

[0039] As Figures 1-5 shown, a medical drainage bag includes a drainage bag 1 and a drainage tube 2. The end of the drainage tube 2 is connected to the drainage bag 1. A sampling branch tube 3 is connected to the drainage tube 2. The sampling branch tube 3 is detachably connected to a sampling bag 5 through a sleeve 4. The bag body of the sampling bag 5 is a transparent bag body, and a scale line 6 is provided on one side of the bag body. In order to facilitate timely sealing of the sampling bag 5 after sampling, the inner sleeve at the inlet of the sampling bag 5 is threadedly connected with a plug cover (not shown in the figure) provided with a sealing ring inside. Before sampling, the plug cover is opened, and during sampling, the plug cover is threadedly connected to the inner sleeve 8 of the sampling bag 5 in time for sampling and sealing.

[0040] The sleeve 4 includes an outer sleeve 7 connected to the end of the sampling branch tube 3 and an inner sleeve 8 connected to the inlet of the sampling bag 5. The inner wall of the outer sleeve 7 is provided with internal threads, and the outer wall of the inner sleeve 8 is provided with matching external threads. The outer sleeve 7 and the inner sleeve 8 are threadedly connected.

[0041] The inner wall of the outer sleeve 7 is connected with a partition board 9 that can divide the inner cavity of the outer sleeve 7 into an upper cavity 10 and a lower cavity 11. A through hole is opened in the center of the partition board 9, and a sampling valve located in the upper cavity 10 is embedded and installed in the through hole. A driving valve rod 18 that cooperates with the sampling valve is provided inside the inner sleeve 8. The driving valve rod 18 can open the sampling valve after the outer sleeve 7 and the inner sleeve 8 are connected and close the sampling valve after the outer sleeve 7 and the inner sleeve 8 are separated.

[0042] The sampling valve includes a cylindrical valve body 12. The lower end surface of the cylindrical valve body 12 is provided with a sampling outlet communicating with the lower cavity 11. A sampling port 15 that communicates the upper cavity 10 with the inner cavity of the cylindrical valve body 12 is evenly opened circumferentially at the lower end of the cylindrical valve body 12. A sealing piston 14 is slidably connected to the inner wall of the cylindrical valve body 12. The sealing piston 14 is connected to the upper end surface of the cylindrical valve body 12 through a spring 13. In the natural state of the spring 13, the sealing piston 14 seals the sampling port 15.

[0043] The driving valve stem 18 is clamped on the inner wall of the inner sleeve 8 through the support frame 17. The support frame 17 includes a supporting outer ring and a supporting inner ring. The supporting outer ring and the supporting inner ring are concentrically arranged and connected by a connecting rod in the radial direction. One end of the driving valve stem 18 is fixed in the supporting inner ring, and the other end of the driving valve stem 18 extends into the cylindrical valve body 12 through the sample outlet 16 and can abut against the blocking piston 14.

[0044] A positioning clip is connected to the hanging hole of the drainage bag, and the positioning clip includes a fixing sleeve 19 in the shape of an arc. A cavity is arranged in the fixing sleeve 19 and sealing plates 20 are arranged at both ends. A positioning baffle 27 is connected to the sealing plate 20 near one end in the cavity 24, and a limiting baffle 25 is connected to the sealing plate 20 near the other end in the cavity 24. A compression spring 28 is arranged between the positioning baffle 27 and the limiting baffle 25 in the cavity 24, and a slider 26 that slides with the cavity 24 is connected to one end of the compression spring 28 near the limiting baffle 25. A semicircular arc-shaped card needle 21 that is concentric with the fixing sleeve 19 is connected to the side of the slider 26 facing the limiting baffle 25, and the needle tip of the card needle 21 passes through the limiting baffle 25 and the positioning baffle 27 in sequence.

[0045] An arcuate through slot 22 is formed on the outer wall of the fixing sleeve 19 from the limiting baffle 25 to the positioning baffle 27 , and a lever 23 is vertically connected to the slider 26 and extends out of the fixing sleeve 19 through the arcuate through slot 22 .

[0046] When the utility model is in use, by toggling the lever 23, the slider 26 is toggled by the lever 23 to drive the clamping needle 21 to disengage from the positioning baffle 27, and the bed sheet at the selected position is pulled up and sent into the opening between the clamping needle 21 and the fixing sleeve 19. After the lever 23 is released, the elastic force of the compression spring 28 can drive the clamping needle 21 to automatically reset, and the clamping needle 21 can easily penetrate into the bed sheet and complete the fixation of the drainage bag 1.

[0047] When it is necessary to sample the drainage fluid, the sampling bag 5 can be connected. By threadedly connecting the inner sleeve 8 to the outer sleeve 7, the driving valve rod 18 inside the inner sleeve 8 moves upward and enters the lower chamber 11 through the sample outlet 16, abuts against the plugging piston 14, and continuously pushes the plugging piston 14 upward to release the plugging of the sampling port 15 by the plugging piston 17. At this time, the sampling port 15, the sample outlet 16 on the cylindrical valve body 12, and the inner sleeve 8 are in communication, and the drainage fluid can smoothly enter the sampling bag 5 to complete the sampling. After the sampling reaches the required volume, the inner sleeve 8 at the outlet of the sampling bag 5 is separated from the outer sleeve 7 by reverse rotation. During the separation process, the driving valve rod 18 continuously moves downward and gradually separates from the plugging piston 14. At this time, under the elastic action of the spring 13, the plugging piston 14 is pushed downward to re-plug the sampling port 16 on the side of the cylindrical valve body 12, ensuring the sealing of the sampling branch pipe 3 so that the drainage fluid will not flow out. After sampling, for the sampling bag 5, the plug is promptly screwed tightly onto the inner sleeve 8 to seal the sampling bag.

[0048] Embodiment 2:

[0049] As Figure 6 and Figure 7 shown, on the basis of Embodiment 1, this embodiment adds an exhaust branch pipe 30. The exhaust branch pipe 30 is arranged obliquely upward on the drainage pipe 2 above the sampling branch pipe 3. The end of the exhaust branch pipe 30 is connected with a plug 31, and an exhaust hole is opened in the center of the plug 31 and a sealing plug 32 is inserted into the exhaust hole. At the same time, in this embodiment, the drainage pipe 2 is a flexible pipe, and a stop clamp 29 is provided between the sampling branch pipe 3 and the drainage bag 1 on the drainage pipe 2.

[0050] In this embodiment, by setting the exhaust branch pipe 30, the air in the drainage bag 1 and the drainage pipe 2 can be timely discharged by opening the sealing plug 32 in the exhaust hole of the plug 31, so that the drainage fluid can be timely discharged into the drainage bag 1 without adhering to the inner wall of the drainage pipe 2, avoiding the problem of poor drainage fluid flow and reducing the occurrence of blockage of the drainage pipe 2. At the same time, the drainage pipe 2 is designed as a flexible pipe and is equipped with a stop clamp 29. According to the actual situation, the drainage fluid at different stages can be collected. The front section of the drainage fluid can be first discharged into the drainage bag through the drainage pipe, and the drainage pipe can be clamped by the stop clamp for plugging, so that the middle section or the rear section of the drainage fluid enters the sampling bag 5 through the sampling branch pipe 3, making the sampling purer. The front section of the drainage fluid contains more organic substances such as blood and is not easy to accurately analyze and diagnose. When not sampling, the stop clamp 29 is opened to ensure that the drainage fluid can be smoothly collected into the drainage bag 1.

[0051] Of course, the above description is not limited to the above examples. The technical features not described in this utility model can be realized by or adopted from the prior art, and will not be elaborated here. The above embodiments and accompanying drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. The utility model has been described in detail with reference to the preferred embodiments. Those of ordinary skill in the art should understand that any changes, modifications, additions or substitutions made by those of ordinary skill in the art within the substantial scope of this utility model do not depart from the purpose of this utility model and should also fall within the scope of protection of the claims of this utility model.

Claims

1. A medical drainage bag, comprising a drainage bag and a drainage tube, the end of the drainage tube is connected to the drainage bag, and a hanging hole for easy hanging is reserved on the drainage bag, and it is characterized in that: A sampling branch pipe is connected to the drainage pipe. The sampling branch pipe is detachably connected to a sampling bag through a sleeve. The sleeve includes an outer sleeve connected to the end of the sampling branch pipe and an inner sleeve connected to the inlet of the sampling bag. An inner wall of the outer sleeve is connected with a partition plate that can divide the inner cavity of the outer sleeve into an upper cavity and a lower cavity. A through hole is opened in the center of the partition plate, and a sampling valve located in the upper cavity is embedded and installed in the through hole. A driving valve rod that cooperates with the sampling valve is arranged in the inner sleeve. The driving valve rod can open the sampling valve after the outer sleeve and the inner sleeve are connected and close the sampling valve after the outer sleeve and the inner sleeve are separated; A positioning clip is connected to the hanging hole of the drainage bag. The positioning clip includes a fixed sleeve in the shape of a superior arc. A cavity is arranged in the fixed sleeve, and sealing plates are arranged at both ends. A positioning baffle is connected to the cavity near one of the sealing plates, and a limiting baffle is connected to the cavity near the other sealing plate. A compression spring is arranged between the positioning baffle and the limiting baffle in the cavity. One end of the compression spring close to the limiting baffle is connected with a slider that is slidably matched with the cavity. A needle that is concentric with the fixed sleeve and in the shape of a semicircle arc is connected to the side of the slider facing the limiting baffle. The tip of the needle sequentially penetrates through the limiting baffle and the positioning baffle.

2. The medical drainage bag according to claim 1, wherein: An arc-shaped through groove is opened on the outer wall of the fixed sleeve from the limiting baffle to the positioning baffle direction. A dial rod that is vertically connected to the slider and extends out of the fixed sleeve through the arc-shaped through groove is arranged.

3. The medical drainage bag according to claim 1, characterized in that: The sampling valve includes a cylindrical valve body. A sample outlet communicated with the lower cavity is opened on the lower end surface of the cylindrical valve body. Sampling ports that communicate the upper cavity with the inner cavity of the cylindrical valve body are uniformly arranged in the circumferential direction at the lower end of the cylindrical valve body. A plugging piston is slidably connected to the inner wall of the cylindrical valve body. The plugging piston is connected with the upper end surface of the cylindrical valve body through a spring. In the natural state of the spring, the plugging piston plugs the sampling ports.

4. The medical drainage bag according to claim 1, characterized in that: The driving valve rod is clamped on the inner wall of the inner sleeve through a support frame. The support frame includes a support outer ring and a support inner ring. The support outer ring and the support inner ring are concentrically arranged and are connected through connecting rods in the radial direction. One end of the driving valve rod is fixed in the support inner ring, and the other end of the driving valve rod extends into the cylindrical valve body through the sample outlet and can abut against the plugging piston.

5. The medical drainage bag according to claim 1, wherein: Internal threads are arranged on the inner wall of the outer sleeve, and matching external threads are arranged on the outer arm of the inner sleeve. The outer sleeve and the inner sleeve are threadedly connected.

6. The medical drainage bag according to claim 1, characterized in that: The bag body of the sampling bag is a transparent bag body, and scale lines are arranged on one side of the bag body.

7. The medical drainage bag according to claim 1, characterized in that: A plug provided with a sealing ring is threadedly connected to the inner sleeve at the inlet of the sampling bag.

8. The medical drainage bag according to claim 1, wherein: The drainage pipe is a flexible pipe, and a stop clamp is arranged between the sampling branch pipe and the drainage bag of the drainage pipe.

9. The medical drainage bag according to claim 1, characterized in that: An exhaust branch pipe that is obliquely upwardly arranged is further connected to the drainage pipe above the sampling branch pipe. A plug is connected to the end of the exhaust branch pipe. An exhaust hole is opened in the center of the plug, and a sealing plug is inserted in the exhaust hole.

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