A clog clearing drainage tube device

Abstract

This invention discloses an effective drainage tube device for unblocking blockages, comprising a drainage structure with one end connected to a drainage bag and the other end connected to a drainage tube. Two one-way valves are installed within the structure along its sidewalls: one one-way valve 1 positioned closer to the drainage tube and one one-way valve 2 positioned further away from the drainage tube. The space between one-way valve 1 and one-way valve 2 is the drainage space. Both one-way valves open only towards the drainage bag. A positive and negative pressure supply structure provides positive or negative pressure to the drainage space. When negative pressure is applied, one-way valve 1 opens, allowing material in the drainage tube to enter the drainage space under the suction force. When positive pressure is applied, one-way valve 2 opens, pushing material in the drainage space out of the drainage bag under the pressure. The repeated application of positive and negative pressure and the coordinated use of the one-way valves effectively solves the blockage problem, and no drainage fluid or other liquids flow back into the drainage area during the process, effectively protecting the drainage area.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, and particularly relates to the field of drainage tube blockage, specifically a device for effectively clearing blocked drainage tubes. Background Technology

[0002] Endoscopic retrograde cholangiopancreatography (ERCP) involves injecting contrast agent through a duodenoscope, followed by X-ray imaging to visualize the pancreatic and bile duct structures, thus enabling the diagnosis and treatment of conditions such as common bile duct stones. Most patients require a nasobiliary tube after ERCP to drain accumulated bile and / or sediment-like stones, preventing blockage of the bile duct or pancreatic duct. During drainage, there is a risk of the nasobiliary tube becoming blocked as some of the accumulated bile and / or sediment-like stones are drained through it. Blockage can cause significant discomfort for the patient, hindering diagnosis, treatment, and recovery.

[0003] Currently, in clinical practice, the common method is to disconnect the drainage connector and connect it to a syringe containing flushing fluid. The flushing fluid is then injected into the drainage site to clear the blockage. However, this method usually injects too much fluid, which can cause high drainage pressure. In addition, it does not remove the material blocking the drainage tube and may lead to re-blockage or worsening of the original blockage.

[0004] In addition, in clinical practice, patients with multiple serous cavity effusions such as ascites and pleural effusion need to undergo percutaneous catheter drainage as appropriate. Depending on the cause and the nature of the drainage fluid, exudate, infectious material, tissue fragments, etc. may block the drainage tube, resulting in poor drainage effect, causing no or almost no relief of the patient's symptoms, making it difficult to achieve the expected treatment effect. Clinically, negative pressure suction and / or flushing with a syringe are generally used, but the intervention effect is often unsatisfactory, and may even fail to relieve the blockage of the drainage tube. More seriously, it may increase infection and / or aggravate the original infection.

[0005] To address the aforementioned technical problems, this invention provides an effective drainage tube device for unblocking obstructions. Summary of the Invention

[0006] Current technologies often resolve drainage tube blockages by flushing. However, for ERCP procedures involving bile duct drainage or other postoperative drainage areas prone to damage, direct flushing can cause a large volume of fluid to rapidly enter the drainage area, potentially leading to tissue deformation or impact and subsequent injury. Therefore, flushing to clear blockages requires careful control of the amount of flushing fluid, making the procedure difficult and often resulting in unsatisfactory unblocking. Thus, a technical solution is needed that resolves drainage tube blockages without flushing the tube itself.

[0007] This invention aims to address this issue by providing a drainage tube device that is either integrated with or combined with a drainage tube. One end of the drainage tube device is connected to the drainage tube, and the other end is connected to a drainage bag. The drainage tube device includes a tube body containing two one-way valves, creating a drainage space between them. Both one-way valves only allow flow towards the drainage bag. A positive and negative pressure supply structure is connected outside the drainage space. When this structure provides positive pressure, it exerts a squeezing force on the liquid within the drainage space, causing it to flow outwards. This squeezing force exerts an outward force on the one-way valves on both sides. Under these conditions, only the one-way valve closest to the drainage bag opens, providing greater pressure to the liquid within the drainage space. This causes the blockage to deform and be drawn out through the one-way valves into the drainage bag. Continuous positive pressure will further push the liquid out of the drainage space. The drainage bag prevents blockage of the drainage space, thus resolving the blockage problem in the drainage tube. When the positive and negative pressure supply structure provides a negative pressure to the drainage space, the negative pressure exerts a force on the two one-way valves within the drainage space. In this situation, only the one-way valve closest to the drainage tube opens, and the drainage space exerts a suction force on the drainage tube, causing the blockage inside the drainage tube to deform or move under the suction force, drawing the material blocking the drainage tube into the drainage space. By repeatedly applying positive and negative pressure, the blockage in the drainage tube and drainage space can be drawn out into the drainage bag. Throughout the process, no liquid enters the drainage area, providing excellent protection for the drainage area. The entire operation is not difficult, and the positive and negative pressure can be automatically and manually adjusted according to the blockage situation, and repeated operation can be performed at any time.

[0008] The specific technical solution is: an effective drainage tube device for unblocking obstructions, comprising:

[0009] The drainage structure is hollow inside, with one end for connecting to the drainage bag and the other end for connecting to the drainage tube. Inside, there are two one-way valves installed along the side wall: one-way valve one is located closer to the drainage tube, and one-way valve two is located further away from the drainage tube. The space between one-way valve one and one-way valve two is the drainage space. Both one-way valve one and one-way valve two open towards the drainage bag, so that all drainage material can only be drained from the drainage tube towards the drainage bag.

[0010] The positive and negative pressure supply structure is used to provide positive or negative pressure to the unblocking space. When negative pressure is provided, one check valve opens, and the material in the drainage tube enters the unblocking space under the suction force of the negative pressure. When positive pressure is provided, one check valve opens, and the material in the unblocking space is pushed out into the drainage bag under the pressure of the positive pressure.

[0011] Furthermore, the one-way valve is a one-way valve structure. The reason for choosing a one-way valve is that it has a certain degree of elasticity, which can increase the valve opening when positive and negative pressure are applied, so that it can work together with the positive and negative pressure to draw out larger blockages into the drainage tube or clear the space.

[0012] Furthermore, to prevent the drainage fluid in the drainage tube from failing to enter the positive and negative pressure supply structure, a transition structure with a transition space is set on the outer side of the corresponding side wall of the unblocking space. An elastic membrane is set between the unblocking space and the transition space. Positive or negative pressure is provided to the transition space through the positive and negative pressure supply structure. When positive pressure is provided, the elastic membrane deforms towards the unblocking space, giving the unblocking space a positive pressure; when negative pressure is provided, the elastic membrane deforms towards the transition space, increasing the volume of the unblocking space, giving the unblocking space a negative pressure, and completing the subsequent actions.

[0013] Furthermore, to provide greater negative pressure, the positive and negative pressure providing structures can be a positive pressure providing structure and a negative pressure providing structure, with two connecting joints on the side wall of the transition space, connecting the positive pressure providing structure and the negative pressure providing structure respectively; the positive pressure providing structure is a miniature air pump that continuously supplies air to the transition space, and the negative pressure providing structure is a miniature air pump that continuously evacuates air; or a miniature air pump capable of continuously supplying or evacuating air can be provided. Alternatively, the positive and negative pressure providing structure can be an elastic compression balloon connected to the transition space via a connecting joint.

[0014] Alternatively, to prevent the drainage fluid in the drainage tube from entering the positive and negative pressure providing structure, another implementation method is to install a thin film bag in the connecting pipe between the positive and negative pressure providing structure and the unblocking space. When the positive and negative pressure providing structure provides positive pressure, the gas or liquid output by the positive and negative pressure providing structure enters the thin film bag and pushes the thin film bag into the unblocking space, giving the unblocking space a positive pressure. Conversely, when the positive and negative pressure providing structure provides negative pressure, the thin film bag returns to the connecting pipe and may also carry the material in the unblocking space through the connecting pipe into the thin film bag, and push the thin film bag into the space where the positive and negative pressure providing structure is located.

[0015] Furthermore, the positive and negative pressure providing structure is an elastic compression balloon, which is connected to the unblocking structure through a connecting joint. The connecting joint is set on the side wall of the unblocking structure corresponding to the unblocking space. A thin film bag is set at the end of the positive and negative pressure providing structure or on the connecting joint. Under normal conditions, the thin film bag does not enter the unblocking space. When positive pressure is required, the thin film bag is forced into the unblocking space to form positive pressure. When negative pressure is required, the thin film bag enters the space of the positive and negative pressure providing structure to provide negative pressure.

[0016] Furthermore, an adjustable three-way connector is installed at the external end of the drainage tube. The connector consists of three parts: a first connector for connecting the drainage tube; a second connector for connecting an infusion device to inject various liquids or medications; and a third connector for connecting a drainage device. This design ensures that flushing can be used to clear blockages when positive or negative pressure cannot clear them. Additionally, the second connector allows for the aseptic injection of treatment fluids and / or cleaning and flushing of the drainage area.

[0017] Technical effect

[0018] A drainage tube device is connected to the drainage tube. This device includes a clearing structure and a positive / negative pressure supply structure. The clearing structure includes two one-way valves that open towards the drainage bag, with a clearing space between the two one-way valves. A positive / negative pressure supply structure is located outside the clearing space to provide positive or negative pressure. The above structure, in conjunction with the positive / negative pressure supply structure, provides positive pressure to the clearing space. Under the pressure, the drainage fluid in the clearing space enters the drainage bag through the one-way valve near the drainage bag, and then flows through the positive / negative pressure structure... The system applies negative pressure to the drainage space, which, through a one-way valve located away from the drainage bag, provides a suction force to the drainage tube. This suction force draws out the blockage material from the drainage tube into the drainage space. Then, positive pressure is applied to the drainage space to force the drainage fluid into the drainage bag. This method effectively solves the blockage problem without causing backflow of drainage fluid or other liquids into the drainage area, effectively protecting the drainage area. The entire structure is simple to design and easy to operate.

[0019] By setting the one-way valve as a one-way diaphragm, the opening of the one-way diaphragm can be enlarged during the supply of positive and negative pressure, which is more conducive to clearing blockages.

[0020] A transition space is set up outside the unblocking space, and the transition space is separated from the unblocking space by an elastic membrane. A positive and negative pressure supply structure is set on the side wall of the transition space. The setting of the elastic membrane can ensure that the gas or liquid in the positive and negative pressure supply structure will not mix with the drainage liquid in the unblocking space, thus avoiding the problem of drainage liquid entering the positive and negative pressure supply structure.

[0021] The three-way connector allows for more functional drainage operations. When drainage fluid needs to be drained, it can be drained outwards directly through the passage connecting connector three and connector one. When drainage fluid needs to be injected inwards, it can be injected inwards directly through the passage connecting connector two and connector one. In addition, the three-way connector can effectively avoid the risk of backflow of already drained drainage fluid and contamination caused by repeated replacements during injection. The connection to connector two can solve some difficult-to-clear blockages, connect the flushing syringe to forcefully clear the drainage tube, and / or perform sterile drug injection and cleaning flushing of the drainage area. Attached Figure Description

[0022] Figure 1 A schematic diagram of the combined structure of the unblocking structure and the elastic compression balloon in Embodiment 1 of the present invention;

[0023] Figure 2 This is a longitudinal cross-sectional view of the combination of the drainage structure and the elastic compression balloon in the normal drainage state of Embodiment 1 of the present invention.

[0024] Figure 3 This provides a longitudinal cross-sectional view of the combination of the unblocking structure and the elastic compression balloon in Embodiment 1 of the present invention under positive pressure.

[0025] Figure 4 This provides a longitudinal cross-sectional view of the combination of the unblocking structure and the elastic compression balloon in Embodiment 1 of the present invention under negative pressure.

[0026] Figure 5 This is a longitudinal cross-sectional view of the normal drainage state of the embodiment of the positive and negative pressure providing structure, which is an elastic compression balloon and the transition space is an annular space in Embodiment 2 of the present invention.

[0027] Figure 6 This provides a longitudinal cross-sectional view of the positive pressure state in Embodiment 2 of the present invention, where the positive and negative pressure providing structure is an elastic compression balloon and the transition space is an annular space.

[0028] Figure 7 This provides a longitudinal cross-sectional view of the negative pressure state in Embodiment 2 of the present invention, where the positive and negative pressure providing structure is an elastic compression balloon and the transition space is an annular space.

[0029] Figure 8 This is a longitudinal cross-sectional view of the normal drainage state of the embodiment of the present invention, in which the positive and negative pressure providing structure is a micro air pump and the transition space is an annular space.

[0030] Figure 9 This provides a longitudinal cross-sectional view of the positive pressure state in Embodiment 2 of the present invention, where the positive and negative pressure providing structure is a miniature air pump and the transition space is an annular space.

[0031] Figure 10 This provides a longitudinal cross-sectional view of the negative pressure state in Embodiment 2 of the present invention, where the positive and negative pressure providing structure is a micro air pump and the transition space is an annular space.

[0032] Figure 11 This is a longitudinal cross-sectional view of the normal drainage state of the embodiment of the positive and negative pressure providing structure, which is an elastic compression balloon and the transition space is a rectangular space, in Embodiment 2 of the present invention.

[0033] Figure 12This provides a longitudinal cross-sectional view of the positive pressure state in Embodiment 2 of the present invention, where the positive and negative pressure providing structure is an elastic compression balloon and the transition space is a rectangular space.

[0034] Figure 13 This provides a longitudinal cross-sectional view of the negative pressure state in Embodiment 2 of the present invention, where the positive and negative pressure providing structure is an elastic compression balloon and the transition space is a rectangular space.

[0035] Figure 14 This is a longitudinal sectional view of the normal drainage state of the embodiment of the present invention in which one-way valve one is located at the connection position between connecting pipe one and the unblocking structure; and one-way valve two is located at the connection position between connecting pipe two and the unblocking structure.

[0036] Figure 15 This is a schematic diagram of the overall structure of the combination of drainage tube, T-connector, drainage device and drainage bag in Embodiment 3 of the present invention;

[0037] Figure 16 This is a schematic diagram of the three-way connector structure in Embodiment 3 of the present invention;

[0038] Figure 17 This is a longitudinal cross-sectional view of the three-way connector portion in Embodiment 3 of the present invention, showing that connector one and connector two are connected.

[0039] Figure 18 This is a longitudinal cross-sectional view of the three-way connector portion in Embodiment 3 of the present invention, showing that connector one and connector three are connected.

[0040] 1. Unblocking structure; 11. Unblocking space; 12. Connecting joint one; 121. Membrane bag; 13. Connecting tube one; 14. Connecting tube two; 21. One-way valve one; 22. One-way valve two; 31. Elastic pressure balloon; 311. Switch button; 32. Miniature air pump; 4. Transition structure; 411. Rectangular space; 412. Annular space; 42. Elastic membrane; 43. Connecting joint two; 5. T-joint; 51. First connector; 52. Second connector; 53. Third connector; 54. Passage adjustment core; 55. T-shaped passage; 56. T-shaped structure; 6. Drainage bag; 7. Drainage tube. Detailed Implementation

[0041] Example 1:

[0042] refer to Figure 1-4An effective drainage tube unblocking device includes an unblocking structure 1, which is hollow inside, with one end for connecting to a drainage bag 6 and the other end for connecting to a drainage tube 7. Two one-way valves are installed inside the structure along its sidewalls: a one-way valve 21 positioned closer to the drainage tube 7 and a one-way valve 22 positioned further away from the drainage tube 7. The space between the one-way valves 21 and 22 is the unblocking space 11. Both the one-way valves 21 and 22 open unidirectionally towards the drainage bag 6, ensuring that all drainage material can only flow from the drainage tube 7 towards the drainage bag 6. A positive and negative pressure providing structure is also included to provide positive or negative pressure to the unblocking space 11. When negative pressure is provided, the one-way valve 21 opens, and the material in the drainage tube 7 enters the unblocking space 11 under the suction force of the negative pressure. When positive pressure is provided, the one-way valve 22 opens, and the material in the unblocking space 11 is pushed out of the drainage bag 6 under the pressure of the positive pressure. One-way valves can be selected from existing one-way valve structures adapted to the pipe body.

[0043] The unblocking structure 1 includes a tubular structure connected between the drainage bag 6 and the drainage tube 7. It can be integrally connected with the drainage tube 7 or combined with it. It is combined with the drainage bag 6. When the combined connection method is selected, in order to avoid leakage and contact problems at the joint, the joint is set to a threaded combination method.

[0044] One-way valves preferentially choose a one-way valve structure because it has a certain degree of elasticity, allowing the opening to widen under both positive and negative pressure. This allows it to work simultaneously with both pressures, facilitating the passage of obstructive substances. The one-way valve possesses an advantage over other one-way valves in that it can work in conjunction with both positive and negative pressure to resolve blockages.

[0045] A connecting connector 12 is installed on the outside of the unblocking structure 1 near the end of the drainage pipe 7 to connect the positive and negative pressure providing structure to the unblocking structure 1. The positive and negative pressure providing structure is an elastic compression balloon 31 with a switch button 311. When the switch button 311 is opened, air can leak through the switch button 311, allowing the entire structure to return to its original normal pressure state. When the switch button 311 is closed and the elastic compression balloon 31 is pressed in its normal state, positive pressure is provided. When the switch button 311 is opened, the elastic compression balloon 31 is first compressed and deformed, and while maintaining the compressed state, the switch button 311 is closed, and the elastic compression balloon 31 returns to its original suction state to provide negative pressure. Of course, in the specific operation process, after providing positive pressure by pressing the elastic compression balloon 31, the material in the unblocking space 11 can be drawn out to the drainage bag 6, and then no more force is applied to the elastic compression balloon 31. The elastic recovery force of the elastic compression balloon 31 will then provide a negative pressure to the transition space, and thus a negative pressure to the unblocking space 11.

[0046] A more preferred embodiment is that the connecting connector 12 is inclined, with the first end located near the one-way valve 13 and extending inclinedly toward the drainage tube 7. This arrangement can prevent the drainage material from entering the positive and negative pressure providing structure during normal drainage.

[0047] A more preferred embodiment is that, in the embodiment of preventing the drainage liquid from entering the positive and negative pressure providing structure, a thin film bag 121 is provided on the inner side of the end of the positive and negative pressure providing structure or in the connecting joint to prevent the positive and negative pressure providing structure from entering the unblocking space 11. Under normal conditions, the film bag does not enter the unblocking space 11. When positive pressure is required, the film bag is prompted to enter the unblocking space 11 to form positive pressure. When negative pressure is required, the film bag enters the space of the positive and negative pressure providing structure to provide negative pressure.

[0048] A more preferred embodiment is that the film bag 121 is an elastic film bag 42, whose function is solely to prevent the drainage material from flowing through multiple spaces. The elastic film bag 42 ensures that it can enter the corresponding space according to the application of positive and negative pressure, and it occupies less space when retracted within the connecting joint 12. A more preferred embodiment is that the periphery of the film bag is fixed to the side wall of the connecting joint 12, and the entire bag is retracted into the middle of the connecting joint 12. This configuration better adapts to entering different spaces and ensures the effectiveness of positive and negative pressure formation.

[0049] The two check valves are installed by placing them directly inside the pipe with the same diameter as the unblocking space 11. This arrangement reduces the difficulty of selecting and adapting the check valve structure.

[0050] Example 2

[0051] refer to Figure 5-14 A drainage tube device for effectively clearing blockages includes a clearing structure 1, which is hollow inside, with one end for connecting to a drainage bag 6 and the other end for connecting to a drainage tube 7; two one-way valves are installed inside the structure along its sidewalls, namely one-way valve 21 located near the drainage tube 7 and one-way valve 22 located away from the drainage tube 7, the space between one-way valve 21 and one-way valve 22 being a clearing space 11, both one-way valve 21 and one-way valve 22 being valves that open only in the direction of the drainage bag 6, so that all drainage material can only be drained from the direction of the drainage tube 7 to the direction of the drainage bag 6; and a positive and negative pressure providing structure, used to provide positive or negative pressure to the clearing space 11. When negative pressure is provided, one-way valve 21 opens, and the material in the drainage tube 7 enters the clearing space 11 under the action of negative pressure suction force; when positive pressure is provided, one-way valve 22 opens, and the material in the clearing space 11 is pushed out to the drainage bag 6 under positive pressure. One-way valves can be selected from existing one-way valve structures adapted to the pipe body.

[0052] The unblocking structure is a tubular structure connected between the drainage bag 6 and the drainage tube 7. It can be integrally connected with the drainage tube 7 or combined with it. It is combined with the drainage bag 6. When the combined connection method is selected, in order to avoid leakage and contact problems at the joint, the joint is set to a threaded combination method.

[0053] One-way valves preferentially choose a one-way valve structure because it has a certain degree of elasticity, allowing the opening to widen under both positive and negative pressure. This allows it to work simultaneously with both pressures, facilitating the passage of obstructive substances. The one-way valve possesses an advantage over other one-way valves in that it can work in conjunction with both positive and negative pressure to resolve blockages.

[0054] A more preferred embodiment involves providing a transition structure 4 with a transition space on the outer side of the corresponding sidewall of the drainage space 11. An elastic membrane 42 is provided between the drainage space 11 and the transition space. Positive or negative pressure is provided to the transition space through a positive and negative pressure supply structure. When positive pressure is provided, the elastic membrane 42 deforms towards the drainage space 11, reducing the volume of the drainage space 11 and providing positive pressure. When negative pressure is provided, the elastic membrane 42 deforms towards the transition space, increasing the volume of the drainage space 11 and providing negative pressure, thus completing the subsequent actions. During normal drainage, the elastic membrane 42 does not deform to cause positive or negative pressure. The purpose of this arrangement is to prevent the elastic membrane 42 from deforming when non-positive or negative pressure is provided, thus affecting the normal drainage direction. It also ensures that when positive or negative pressure is required, its deformation can be guided to provide the corresponding positive or negative pressure.

[0055] More specifically, the transition space can be a rectangular space 411 extending from the side wall of the dredging space 11, and the elastic membrane 42 is disposed between the rectangular space 411 and the dredging space 11.

[0056] Alternatively, a more preferred embodiment is that the transition space is an annular space 412 surrounding the outside of the unblocking space 11. When it is an annular space 412, the elastic membrane 42 is also an annular elastic membrane 42. The supporting force of the unblocking structure 1 is provided by the side wall of the transition space. This arrangement can ensure that 360 degrees of positive and negative pressure are applied, and the positive and negative pressure on the unblocking space 11 will be more uniform, resulting in a better unblocking effect.

[0057] A connecting joint 43 is provided on the transition structure 4 to connect the positive and negative pressure supply structure with the transition structure.

[0058] One implementation of the positive and negative pressure providing structure is as follows: The positive and negative pressure providing structure is an elastic compression balloon 31, with a switch 311 on the elastic balloon. When the switch 311 is opened, air can leak through the switch 311, allowing the entire structure to return to its original normal pressure state. Closing the switch 311 and pressing the elastic compression balloon 31 in its normal state provides positive pressure; opening the switch 311 first compresses and deforms the elastic compression balloon 31, maintaining this compressed state, and then closing the switch 311 restores the suction force of the elastic compression balloon 31 to provide negative pressure. Alternatively, in specific operations, after providing positive pressure by pressing the elastic compression balloon 31, the material in the drainage space 11 can be drawn out to the drainage bag 6, and no further force can be applied to the elastic compression balloon 31. The elastic recovery force of the elastic compression balloon 31 will then provide negative pressure to the transition space, thereby providing negative pressure to the drainage space 11.

[0059] Alternatively, another implementation of the positive and negative pressure providing structure is as follows: the positive and negative pressure providing structure can be divided into a positive pressure providing structure and a negative pressure providing structure set on the transition structure 4. Two connecting joints 43 are set on the side wall of the transition space to connect the positive pressure providing structure and the negative pressure providing structure respectively. The positive pressure providing structure is a miniature air pump that continuously supplies air to the transition space, and the negative pressure providing structure is a miniature air pump that continuously pumps air. Alternatively, a miniature air pump 32 with continuous air supply or pumping function can be provided. In a more preferred embodiment, the miniature air pump 32 can be equipped with an inflation button and an air extraction button. The single air supply and extraction volume of the miniature air pump 32 can also be set as needed, and the air supply and extraction frequency can be set. By repeatedly operating, the overall unblocking effect of the drainage tube 7 can be further guaranteed.

[0060] The configuration of the two check valves is as follows: (Refer to...) Figure 5-13 The two check valves are directly installed inside the pipe with the same diameter as the unblocking space 11; this arrangement reduces the difficulty of selecting and adapting the check valve structure.

[0061] Or, refer to Figure 14 A connecting pipe is provided at each end of the unblocking structure 1. The connecting pipe 13 is connected to the drainage pipe 7, and the connecting pipe 24 is connected to the drainage bag 6. The one-way valve 21 is located at the connection between the connecting pipe 13 and the unblocking structure 1. The one-way valve 22 is located at the connection between the connecting pipe 24 and the unblocking structure 1.

[0062] Example 3

[0063] refer to Figure 15-18Based on Embodiments 1 and 2, for special cases requiring the injection of medication for blockage and treatment, the following implementation method is provided: A three-way connector 5, adjustable for opening the passage, is installed at the external end of the drainage tube 7. This connector consists of a first connector 51 for connecting the drainage tube 7; a second connector 52 for connecting an infusion device to inject various fluids; and a third connector 53 for connecting the drainage tube assembly. This arrangement ensures that when positive or negative pressure cannot clear the blockage, flushing can be used. Furthermore, the second connector 52 also allows for the injection of necessary treatment fluids. The connecting tube 13 on the unblocking structure 1 communicates with the third connector 53; and the joints are secured with screws or other methods to prevent detachment.

[0064] The various joints and their combined structures can be combined using threaded structures or other robust methods.

[0065] In a more preferred embodiment, the three connectors are arranged vertically in sequence. A passage adjustment core 54 is provided inside the tee connector 5, and a T-shaped passage 55 is provided inside the passage adjustment core 54. A rotation adjustment structure for the passage adjustment core 54 is provided on the outside of the tee connector 5. The tee connector 5 is generally a disc-shaped structure, which includes a disc-shaped outer shell and a disc-shaped passage adjustment core 54.

[0066] In a more preferred embodiment, the rotation adjustment structure is a T-shaped structure 56 corresponding to the position of the T-shaped passage 55; by rotating the cross arm of the T-shaped structure 56 to a position perpendicular to the second or third connector 53 to be blocked, a passage connecting this connector to the first connector 51 can be achieved.

[0067] The technical solutions of the embodiments of the present invention have been clearly and completely described above through specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments. In the absence of conflict, the above embodiments and features in the embodiments can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

Claims

1. An effective drainage tube device for unblocking obstructions, wherein the drainage tube is a nasobiliary drainage tube, characterized in that, It includes The unblocking structure is hollow inside, with one end for connecting to the drainage bag and the other end for connecting to the drainage tube. It contains two one-way valves installed along its sidewalls: one one-way valve one positioned closer to the drainage tube and one one-way valve two positioned further away from the drainage tube. The space between one-way valve one and one-way valve two is the unblocking space. Both one-way valve one and one-way valve two open unidirectionally towards the drainage bag. The unblocking structure is a tubular structure externally connected between the drainage bag and the drainage tube; and one-way valve one and one-way valve two are positioned along the longitudinal axis of the unblocking structure. The positive and negative pressure supply structure is used to provide positive or negative pressure to the unblocking space. When negative pressure is provided, one check valve opens, and the material in the drainage tube enters the unblocking space under the suction force of the negative pressure. When positive pressure is provided, one check valve opens, and the material in the unblocking space is pushed out into the drainage bag under the pressure of the positive pressure. A transition structure with a transition space is set on the outer side of the corresponding side wall of the drainage space, and an elastic membrane is set between the drainage space and the transition space. Positive or negative pressure is provided to the transition space through the positive and negative pressure supply structure. When positive pressure is provided, the volume of the drainage space is reduced, and the elastic membrane deforms towards the drainage space, giving the drainage space a positive pressure. When negative pressure is provided, the elastic membrane deforms towards the transition space, increasing the volume of the drainage space, giving the drainage space a negative pressure. During normal drainage, the elastic membrane does not undergo deformation that causes positive or negative pressure. A second connecting joint is provided on the transition structure to combine and connect the positive and negative pressure supply structure with the transition structure. The transition space is an annular space surrounding the dredging space. When it is an annular space, the elastic membrane is also an annular elastic membrane, and the supporting force of the dredging structure is provided by the sidewalls of the transition space.

2. The drainage tube device according to claim 1, characterized in that, The one-way valve has a one-way valve structure.

3. The drainage tube device according to claim 1, characterized in that, The positive and negative pressure supply structure is an elastic compression balloon with a switch button. When the switch button is opened, air leaks through the switch button, allowing the entire structure to return to its original normal pressure state. When the switch button is closed, pressing the elastic compression balloon in its normal state deforms it and provides positive pressure. Turn on the switch to compress and deform the elastic compression balloon, and maintain the compressed state. Then turn off the switch to restore the elastic compression balloon to its original state, providing negative pressure.

4. The drainage tube device according to claim 1, characterized in that, Positive and negative pressure supply structures are divided into positive pressure supply structures and negative pressure supply structures set on the transition structure.

5. The drainage tube device according to claim 1, characterized in that, The positive and negative pressure supply structure is a miniature air pump with continuous air delivery or extraction function.

6. The drainage tube device according to claim 5, characterized in that, The miniature air pump is equipped with an inflation button and an air extraction button, and the single air delivery and extraction volume of the miniature air pump can be set as needed, as well as the frequency of air delivery and extraction.

7. The drainage tube device according to claim 1, characterized in that, Both one-way valve one and one-way valve two are directly installed inside the pipe with the same diameter as the unblocking space.

8. The drainage tube device according to claim 7, characterized in that, The external end of the drainage tube is equipped with a three-way connector that can adjust the opening and closing of the passage. The first connector is used to connect the drainage tube; the second connector is used to connect the injection device to complete the injection of various liquids; and the third connector is used to connect the drainage tube device.

9. The drainage tube device according to claim 8, characterized in that, The three connectors are arranged vertically in sequence. A passage adjustment core is set inside the tee connector, and a T-shaped passage is set inside the passage adjustment core. A rotation adjustment structure for the passage adjustment core is set on the outside of the tee connector.

10. The drainage tube device according to claim 9, characterized in that, The tee connector has an overall disc-shaped structure, which includes a disc-shaped outer shell and a disc-shaped flow adjustment core.

11. The drainage tube device according to claim 10, characterized in that, The rotation adjustment structure is a T-shaped structure corresponding to the position of the T-shaped passage; the cross arm of the T-shaped structure is rotated to a position perpendicular to the second or third joint that needs to be sealed.

Images