Groove cavity combined type drainage device

Abstract

The utility model discloses a groove cavity combined type drainage device, which relates to the technical field of medical instruments and comprises a drainage tube, a guide needle, a groove cavity tube joint assembly, a drainage connecting tube, a negative pressure drainage ball and a drainage bag. The guide needle is inserted into the drainage tube, one end of the drainage tube is provided with a groove cavity tube joint assembly, and the other end of the drainage tube is provided with a plug; the upper end of the groove cavity pipe connector assembly is further connected with a drainage connecting pipe, the other end of the drainage connecting pipe is connected with the inlet end of a negative pressure drainage ball, and the outlet end of the negative pressure drainage ball is connected with a drainage bag. According to the structure, the guide needle can be prevented from penetrating out of the catheter to puncture human organs, injection of liquid medicine or flushing liquid is facilitated, the liquid medicine or flushing liquid is not prone to being blocked by the human tissues and organs, and therefore the drainage rate can be improved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a cavity-combined drainage device. Background Technology

[0002] With the development of minimally invasive interventional surgery, intraoperative and postoperative drainage is beneficial to surgical success and patient recovery. However, the corresponding drainage tubes or sets need improvement. Currently, the grooved drainage tubes commonly used after open surgery in clinical practice cannot reach the site requiring drainage through the interventional channel. The main reasons are: the grooved section of the drainage tube placed inside the body is an open groove, making it impossible to insert a guide needle to support and guide the drainage tube through the interventional channel to reach the site requiring drainage. While some cavity-groove combined drainage tubes have an increased lumen to accommodate guide needles, to prevent puncture of human tissues and organs, the guide needle is usually a few centimeters shorter than the end of the grooved tube. This poses the following risks and inconveniences: First, the soft and elastic drainage tube is easily compressed and deformed under the pressure of the guide needle or external force, especially when inserted through the puncture site, causing the guide needle to pierce human tissues and organs, resulting in medical accidents. Secondly, because the guide needle is a few centimeters shorter than the end of the tube, the soft silicone material at the end of the drainage tube is difficult to pass through the interventional channel. Especially in clinical brain interventional surgery drainage, the soft end of the cavity tube cannot be drilled through the brain to enter the drainage site, thus making drainage impossible.

[0003] Therefore, a novel cavity-combined drainage device is needed to solve the problems existing in the aforementioned technologies. Utility Model Content

[0004] To address the existing problems, this utility model provides a combined channel drainage device.

[0005] To achieve the objectives of this utility model, the technical solution adopted is as follows:

[0006] A combined groove-cavity drainage device includes a drainage tube, a guide needle, a groove-cavity tube connector assembly, a drainage connecting tube, a negative pressure drainage ball, and a drainage bag. The guide needle is inserted into the drainage tube, one end of which is equipped with the groove-cavity tube connector assembly, and the other end of which is provided with a plug. The upper end of the groove-cavity tube connector assembly is also connected to the drainage connecting tube, and the other end of the drainage connecting tube is connected to the inlet end of the negative pressure drainage ball, while the outlet end of the negative pressure drainage ball is connected to the drainage bag.

[0007] Based on the above technical solution, further, an injection hole is provided on the side of the end of the drainage tube, and the injection hole is connected to the cavity inside the drainage tube.

[0008] Based on the above technical solution, furthermore, the drainage tube has grooves distributed inside, and the plug is provided with a flow hole, and the flow hole is connected to the grooves on the drainage tube.

[0009] Based on the above technical solution, the groove tube connector assembly further includes a first groove tube connector and a second groove tube connector, wherein the first groove tube connector is connected to one end of the drainage tube away from the plug, one end of the second groove tube connector is connected to the first groove tube connector, and the other end of the second groove tube connector is connected to the negative pressure drainage ball through a drainage connection tube.

[0010] Based on the above technical solution, the second cavity pipe joint and the drainage connection pipe are connected by a three-way base, and the three-way base is also provided with a liquid injection pipe, and the liquid injection pipe is provided with a two-way valve with a heparin cap.

[0011] Based on the above technical solution, the second grooved tube connector is a concave tapered tube, and the first grooved tube connector is a convex tapered tube. The first grooved tube connector is inserted into the second grooved tube connector for connection.

[0012] Based on the above technical solution, further, the drainage connection tube is provided with a drainage tube connector, and the drainage tube connector is also provided with a first three-chamber valve with a heparin cap; wherein, the drainage connection tube between the drainage tube connector and the negative pressure drainage ball is also provided with a flow regulator.

[0013] Based on the above technical solution, further, a pipe section is provided on the exhaust hole at the inlet end of the negative pressure drainage ball, and a first Robert clamp and a first filter valve are provided on the pipe section.

[0014] Based on the above technical solution, further, the connecting pipe between the outlet end of the negative pressure drainage ball and the inlet end of the drainage bag is provided with a clip, a second three-chamber valve with a heparin cap, a third three-chamber valve with a heparin cap, and a second Robert clip in sequence from top to bottom.

[0015] Based on the above technical solution, a second filter valve is provided on the vent hole at the inlet end of the drainage bag, and a liquid stop clamp is provided at the outlet end of the drainage bag.

[0016] Compared with the prior art, the beneficial effects achieved by this utility model are as follows:

[0017] (1) The drainage tube in this utility model has an injection hole on the side of the end tube body, preferably near the end of the plug. The injection hole is connected to the cavity inside the drainage tube and is round, square, elliptical, etc., to prevent the guide needle from piercing the tube and injuring human organs. It is also conducive to the injection of medicine or flushing solution and is not easily blocked by human tissues and organs, thereby improving the drainage rate.

[0018] (2) The body of the drainage tube in this utility model can be coated with a lubricating coating, preferably a water-based lubricant coating, to facilitate smooth insertion of the tube and make it more efficient and safe.

[0019] (3) The plug at the end of the drainage tube in this utility model not only achieves a sealing effect, but also effectively avoids the occurrence of situations such as the guide needle piercing the end of the drainage tube and injuring or puncturing the patient's internal organs and tissues. The tapered plug at the end of the drainage tube also has a flow hole, which is connected to the groove on the drainage tube. This effectively avoids the risk of the cavity directly penetrating the bottom of the drainage tube being easily blocked by human tissue. This not only improves the drainage rate, but also facilitates the drainage of fluid deep in human tissues and organs. At the same time, when the plug at the end of the drainage tube is aspirating and draining fluid, it can increase the toughness of the drainage tube during drainage, effectively reducing the phenomenon of the groove part of the drainage tube sticking to the wall in the body.

[0020] (4) The closed groove in this utility model maintains the original fan-shaped or triangular shape, which is not only beneficial to production, but also maintains the original shape of the cavity. The cavity space is larger than the common circular or square cavity space. After the guide needle is inserted, the excess irregular space is not easy to form a vacuum. The circular guide needle is easy to fill the circular cavity to form a vacuum, thus making it difficult to remove the inserted guide needle. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the device of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the end of the drainage tube in the device of this utility model;

[0023] Figure 3 This is a schematic diagram of one of the structures forming a closed cavity in the embodiment;

[0024] Figure 4 This is a schematic diagram of another structure forming a closed cavity in the embodiment;

[0025] Figure 5 The following are schematic diagrams of other structures forming closed cavities in the embodiments;

[0026] Figure 6 The diagram shows other structures that form a closed cavity in the embodiment.

[0027] Figure 7 This is a schematic diagram of the unassembled first and second slotted tube connectors in the device of this utility model.

[0028] Figure 8 This is a schematic diagram of the assembled structure of the first and second slotted tube joints in the device of this utility model.

[0029] The attached diagram is labeled as follows: 1. Drainage tube; 2. Injection hole; 3. Plug; 4. First cavity tube connector; 5. Second cavity tube connector; 6. T-shaped base; 7. Guide needle; 8. Puncture needle; 9. Injection pipe; 10. Two-way valve; 11. Drainage tube connector; 12. First three-chamber valve; 13. Drainage connecting tube; 14. Flow regulator; 15. First Robert clamp; 16. First filter valve; 17. Negative pressure drainage ball; 18. Clamp; 19. Second three-chamber valve; 20. Third three-chamber valve; 21. Second Robert clamp; 22. Drainage bag; 23. Stop clamp; 24. Second filter valve. Detailed Implementation

[0030] The present invention will be further described and illustrated below with reference to the accompanying drawings and specific embodiments. The technical features of each embodiment of the present invention can be combined accordingly, provided that there is no mutual conflict.

[0031] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below. Technical features in various embodiments of this utility model can be combined appropriately without conflict.

[0032] In the description of this utility model, it should be understood that when an element is considered to be "connected" to another element, it can be directly connected to the other element or indirectly connected, i.e., there is an intermediate element. Conversely, when an element is said to be "directly" connected to another element, there is no intermediate element.

[0033] In the description of this utility model, it should be understood that the terms "first" and "second" are used only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include at least one of those features.

[0034] Example

[0035] Combination Figure 1As shown, this embodiment provides a cavity combined drainage device, which includes a drainage tube 1, a guide needle 7, a cavity tube connector assembly, a drainage connecting tube 13, a negative pressure drainage ball 17, and a drainage bag 22. The guide needle 7 is inserted into the drainage tube 1. One end of the drainage tube 1 is equipped with the cavity tube connector assembly, and the other end of the drainage tube 1 is provided with a plug 3. The upper end of the cavity tube connector assembly is also connected to the drainage connecting tube 13. The other end of the drainage connecting tube 13 is connected to the inlet end of the negative pressure drainage ball 17, and the outlet end of the negative pressure drainage ball 17 is connected to the drainage bag 22.

[0036] In this embodiment, an injection hole 2 is provided on the side of the end of the drainage tube 1. Preferably, the hole is located near the end of the plug 3. The injection hole 2 is connected to the cavity inside the drainage tube 1. The injection hole 2 is round, square, oval, etc., to prevent the guide needle 7 from piercing the catheter and injuring human organs. It also facilitates the injection of medicine or flushing fluid and is not easily blocked by human tissues and organs, thereby improving the drainage rate.

[0037] In this embodiment, the body of the drainage tube 1 can be coated with a lubricating coating, preferably a water-based lubricant coating, to facilitate smooth insertion of the tube and make it more efficient and safe.

[0038] In this embodiment, refer to Figures 3-6 As shown, the drainage tube 1 is a combined drainage tube with a cavity and groove. The drainage tube 1 has open grooves and multiple cavities for injection or flushing. The cavities can be used to insert the guide needle 7 for support, and the cavities can be located in the middle of the drainage tube 1, on the side of the groove, or between two grooves to form a closed cavity.

[0039] In this embodiment, refer to Figure 2 As shown, the plug 3 at the end of the drainage tube 1 is hemispherical or conical, preferably bullet-shaped, to facilitate the smooth insertion of the drainage tube 1 and more effectively prevent the guide needle 7 from easily penetrating the lumen and injuring human tissues and organs during surgery. Furthermore, placing the plug 3 at the end of the drainage tube 1 not only achieves a sealing effect but also effectively prevents the guide needle 7 from piercing the end of the drainage tube 1 and injuring or puncturing the patient's internal organs and tissues. Preferably, the plug 3 is made of medical-grade silicone, shaped using a molding die; the material of the plug 3 contains X-ray radiopaque material, preferably a blue radiopaque adhesive. The silicone plug with adhesive is filled into the plug mold, and after drying or light curing, it forms a blue radiopaque cone shape. This facilitates insertion into the interventional channel or endoscopic cavity to reach the drainage site and allows for real-time monitoring of the drainage tube 1's position via radiopaque imaging, ensuring safe and efficient placement.

[0040] In this embodiment, the tapered plug 3 at the end of the drainage tube 1 also has a flow hole. This flow hole is connected to the groove on the drainage tube 1, which effectively avoids the risk of the cavity directly penetrating the straight end of the drainage tube 1 being blocked by human tissue. This not only improves the drainage rate but also facilitates the drainage of fluid deep in human tissues and organs. At the same time, the plug 3 at the end of the drainage tube 1 can increase the toughness of the drainage tube 1 during drainage, effectively reducing the phenomenon of the groove part of the drainage tube 1 sticking to the wall in the body.

[0041] Traditional grooved drainage tubes 1 can only drain in one direction, and during surgery, these types of drainage tubes 1 often require simultaneous infusion of irrigation fluid, medication, or contrast agents. In this embodiment, combined with... Figure 2 As shown, the drainage tube 1 has multiple grooves inside its lumen. Closing any one or more grooves, or separating the closed grooves into one or more sealed cavities, creates a bidirectional channel with multiple functions. While draining, it can be used not only for infusing medications and irrigation fluids, but also for inserting the guide needle 7 for support and to facilitate tube placement. This allows for simultaneous drainage and irrigation of the inflamed area, ensuring timely drainage and removal of inflammatory secretions and isotonic fluids, promoting patient recovery. Furthermore, medications can be delivered deep into the patient's body as needed to achieve therapeutic goals.

[0042] Furthermore, the closed grooves retain their original fan-shaped or triangular shape, which is beneficial for production. The original shape of the cavity is larger than that of common circular or square cavities. After the guide needle 7 is inserted, the excess irregular space is not easy to form a vacuum. The circular guide needle 7 easily fills the circular cavity to form a vacuum, thus making it difficult to remove the inserted guide needle 7.

[0043] In this embodiment, refer to Figure 1 As shown, the slotted tube connector assembly includes a first slotted tube connector 4 and a second slotted tube connector 5. The first slotted tube connector 4 is connected to one end of the drainage tube 1 away from the plug 3. One end of the second slotted tube connector 5 is connected to the first slotted tube connector 4, and the other end is connected to the negative pressure drainage ball 17 through the drainage connection tube 13. The second slotted tube connector 5 and the drainage connection tube 13 are connected by a three-way base 6, and the three-way base 6 is also provided with an injection pipe 9. The injection pipe 9 has an injection chamber inside, and the end of the injection pipe 9 is provided with a two-way valve 10 with a heparin cap to control the injection flow rate. The combination of the injection pipe 9 and the two-way valve 10 realizes multiple uses in one chamber. After the tube is inserted, it can be used to infuse irrigation fluid or inject medicine into the drainage site. It can also be used to extract tissue fluid and exudate through the injection chamber for biochemical testing, effectively reducing the risk of microbial contamination.

[0044] Furthermore, in combination Figure 7 and Figure 8As shown, the second grooved tube connector 5 is designed as a concave tapered tube, and the first grooved tube connector 4 is designed as a convex tapered tube. The first grooved tube connector 4 is inserted into the second grooved tube connector 5 to achieve quick connection and good sealing. In this embodiment, an extended injection tube is inserted inside the second grooved tube connector 5, protruding beyond the second grooved tube connector 5. The protruding length passes through the part of the first grooved tube connector 4 to reach the target position.

[0045] In some other embodiments, the drainage connection tube 13 is also provided with a drainage tube connector 11, which has a drainage cavity inside, and the drainage tube connector 11 is also provided with a first three-chamber valve 12 with a heparin cap. The drainage connection tube 13 between the drainage tube connector 11 and the negative pressure drainage ball 17 is also provided with a flow regulator 14 for adjusting the flow rate.

[0046] Furthermore, a pipe section extends from the vent hole next to the inlet end of the negative pressure drainage ball 17. The pipe section is equipped with a first Robert clamp 15 and a first filter valve 16 to prevent external microbial infection when the negative pressure drainage ball 17 generates negative pressure exhaust.

[0047] Furthermore, the connecting pipe between the outlet end of the negative pressure drainage ball 17 and the inlet end of the drainage bag 22 is equipped with, from top to bottom, a clip 18, a second three-chamber valve 19 with a heparin cap, a third three-chamber valve 20 with a heparin cap, and a second Robert clip 21, to control the flow rate on the connecting pipe. A second filter valve 24 is also provided next to the inlet end of the drainage bag 22, and a stop clamp 23 is provided at the outlet end of the drainage bag 22.

[0048] The working principle of this device is as follows:

[0049] This device inserts a guide needle 7 into the lumen inside the drainage tube 1 to facilitate insertion into the interventional channel or endoscopic cavity. The plug 3 at the end of the drainage tube 1 effectively prevents the guide needle 7 from protruding and damaging human tissues and organs. The position of the drainage tube 1 can be monitored at any time by visualizing the drainage tube body. The drainage tube body with a lubricating coating is more conducive to insertion. After the tube reaches the drainage site, the guide needle 7 is removed, and drainage can be smoothly achieved through the first groove tube connector 4 and the second groove tube connector 5.

[0050] A puncture needle 8 is inserted into the lower end of the drainage tube 1 before the guide needle 7 is inserted. This drainage tube 1 is suitable for various open surgeries. After the drainage tube 1 is punctured and led out of the body through the puncture needle 8, the puncture needle 8 is cut off. Then, the injection chamber and drainage chamber of the drainage tube 1 are quickly connected through the first grooved tube connector 4 and the second grooved tube connector 5 of this device, so that the drainage tube 1, negative pressure drainage ball 17, and drainage bag 22 are completely sealed. While the device provides rapid drainage, medication or irrigation fluid can be injected into the drainage lesion site through the injection chamber of this device according to clinical needs. The waste fluid after irrigation is then led out through the grooved drainage tube 1. It should be noted that in other embodiments, the guide needle 7 can also be replaced with a guide wire.

[0051] This device is equipped with multiple valves with heparin caps, which can effectively prevent microbial infection. In addition, through the interaction between the valves and the negative pressure of the negative pressure drainage ball 17, the device can effectively and quickly clear blocked blood clots when the tube is blocked.

[0052] In other words, this device is a fully enclosed drainage system, which effectively prevents the occurrence of some infections. It is suitable for various minimally invasive interventional surgeries as well as drainage needs during various open surgeries. At the same time, medication or irrigation fluid can be injected in a closed manner according to clinical needs. The tube body of the groove is a rotating spiral shape, which can realize all-round drainage and prevent blockage of the corresponding holes or cavities in the drainage tube 1 when it adheres to the wall.

[0053] It should be further explained that, in order for this device to be suitable for use in open surgical procedures, the drainage tube 1 must be connected to the puncture needle 8 during surgery. The puncture needle 8 passes through the patient's skin tissue from inside the incision to outside the body, bringing out the drainage tube 1, thus leaving the internal section of the drainage tube 1 inside the body for drainage. This requires disconnecting the three-way base 6 from the drainage tube 1. After the drainage tube 1 is brought out of the body by the puncture needle 8, the puncture needle 8 is cut off and reconnected to the three-way base 6. The double-lumen tube connector of this device is easy to operate and facilitates the passage of drainage fluid and injection fluid. At the same time, this device has a simple structure, is easy to operate, and is easy to manufacture.

[0054] The above are merely embodiments of this utility model, described in a relatively specific and detailed manner, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A combined channel drainage device, characterized in that, Includes drainage tubes, guide needles, groove tube connector assemblies, drainage connection tubes, negative pressure drainage balls, and drainage bags; The guide needle is inserted into the drainage tube, one end of which is equipped with a groove tube connector assembly, and the other end of which is equipped with a plug; The upper end of the groove tube connector assembly is also connected to a drainage connection tube, and the other end of the drainage connection tube is connected to the inlet end of the negative pressure drainage ball, while the outlet end of the negative pressure drainage ball is connected to the drainage bag.

2. The combined channel drainage device according to claim 1, characterized in that, An injection hole is provided on the side of the end of the drainage tube, and the injection hole is connected to the cavity inside the drainage tube.

3. The combined channel drainage device according to claim 1, characterized in that, The drainage tube has grooves inside, and the plug has a flow hole, which is connected to the grooves on the drainage tube.

4. The combined channel drainage device according to claim 1, characterized in that, The grooved tube connector assembly includes a first grooved tube connector and a second grooved tube connector. The first grooved tube connector is connected to one end of the drainage tube away from the plug. One end of the second grooved tube connector is connected to the first grooved tube connector. The other end of the second grooved tube connector is connected to the negative pressure drainage ball through a drainage connection tube.

5. The combined channel drainage device according to claim 4, characterized in that, The second groove tube connector is connected to the drainage connection tube through a three-way base, and the three-way base is also equipped with an injection pipe, which is equipped with a two-way valve with a heparin cap.

6. The combined channel drainage device according to claim 5, characterized in that, The second grooved tube connector is a concave tapered tube, and the first grooved tube connector is a convex tapered tube. The first grooved tube connector is inserted into the second grooved tube connector for connection.

7. The combined channel drainage device according to claim 1, characterized in that, The drainage connection tube is equipped with a drainage tube connector, and the drainage tube connector is also equipped with a first three-chamber valve with a heparin cap; wherein, the drainage connection tube between the drainage tube connector and the negative pressure drainage ball is also equipped with a flow regulator.

8. The combined channel drainage device according to claim 1, characterized in that, The negative pressure drainage ball has a pipe section extending from the exhaust port at the inlet end, and the pipe section is equipped with a first Robert clamp and a first filter valve.

9. The combined channel drainage device according to claim 1, characterized in that, The connecting tube between the outlet end of the negative pressure drainage ball and the inlet end of the drainage bag is provided with, from top to bottom, a clip, a second three-chamber valve with a heparin cap, a third three-chamber valve with a heparin cap, and a second Robert clip.

10. A cavity-combined drainage device according to claim 1, characterized in that, The drainage bag has a second filter valve at the vent at the inlet end and a stop clamp at the outlet end.

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