Multifunctional negative pressure drainage pipeline device

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to a multifunctional negative pressure drainage pipeline device which is characterized in that a partition wall is arranged in a drainage tube and divides the drainage tube into two independent channels, and one channel is connected and communicated with an external catheter through a connector to form a drainage channel; an opening is formed in the side wall of the other channel and is communicated with the dosing tube to form a dosing channel; when the drainage tube is connected with the connector, the blocking column is inserted into the dosing channel to block the dosing channel. In this way, when medical staff conduct dosing operation, injection can be conducted on the end of the externally-arranged and extending dosing tube, and operation is simple and efficient. Meanwhile, the blocking column can prevent the medicine from leaking.

Description

Technical Field

[0001] This application belongs to the field of medical device technology, specifically a multifunctional negative pressure drainage tubing device. Background Technology

[0002] With the continuous development of medical technology, minimally invasive endoscopic surgery is increasingly becoming the mainstream surgical method. Among these procedures, the connector serves as a core component, playing a role in drug delivery and drainage. In current technologies, the connector is typically used to administer drugs, which are then delivered to the patient's lesion through the drug delivery channel. Subsequently, the drainage channel guides the accumulated pus, blood, and fluid from the lesion to the outside of the body, preventing postoperative infection and hindering wound healing.

[0003] However, the connector is small in size and made of rigid material, making it difficult for medical staff to align the injection port when administering medication, thus causing inconvenience. Utility Model Content

[0004] The technical problem to be solved by this application is to provide a multifunctional negative pressure drainage tubing device to address the inconvenience of existing connectors during drug administration.

[0005] To address the aforementioned technical problems, this application provides a multifunctional negative pressure drainage tubing device, comprising a drainage tube, one end of which is inserted into the human body and the other end of which extends outside the body; the external end of the drainage tube is connected to an external catheter via a connector, the external catheter being used to connect to a negative pressure device; characterized in that:

[0006] The connector is a hollow channel structure with openings at both ends, and a sealing post is provided below the front opening of the connector; the drainage tube is provided with a partition wall, which divides the drainage tube into two independent channels, one of which is connected to the external conduit through the connector to form a drainage channel;

[0007] Another channel sidewall is provided with an opening, which communicates with the drug delivery tube to form a drug delivery channel; and when the drainage tube is connected to the connector, the blocking post is inserted into the drug delivery channel to block the drug delivery channel.

[0008] Optionally, the multifunctional negative pressure drainage tubing device further includes an injection head, the first end of which is connected to the drug delivery tube, and the second end of which is used to inject the drug solution.

[0009] Optionally, the injection head is provided with a one-way valve, the inlet of the one-way valve faces the second end of the injection head, the outlet of the one-way valve faces the first end of the injection head, and the liquid flow direction of the one-way valve is from the inlet to the outlet.

[0010] Optionally, the multifunctional negative pressure drainage pipeline device further includes a sliding valve, which is slidably disposed on the connector and can move between a first preset position and a second preset position on the connector;

[0011] When the sliding valve is in the first preset position, it abuts against the drainage pipe; when the sliding valve is in the second preset position, the distance between it and the drainage pipe is greater than the distance between it and the drainage pipe when it is in the first preset position.

[0012] Optionally, the multifunctional negative pressure drainage pipeline device further includes a water injection head, the first end of which is connected to the external conduit, and the second end of which is used to inject non-medicinal liquid.

[0013] Optionally, the axial cross-sectional area of ​​the drainage channel is larger than the axial cross-sectional area of ​​the drug delivery channel.

[0014] Optionally, the axial cross-sectional shape of the drug delivery channel is circular;

[0015] And / or, the axial cross-sectional shape of the drainage channel is crescent-shaped.

[0016] Optionally, the sealing column is made of medical-grade stainless steel.

[0017] Optionally, the end of the drainage tube that extends into the human body is provided with multiple diversion ports, and the multiple diversion ports are respectively connected to the drainage channel.

[0018] Optionally, a diversion component is provided on the outer side of the end of the drainage tube that extends into the human body, and a plurality of diversion ports are formed on the diversion component, with the plurality of diversion ports facing the drainage tube.

[0019] The multifunctional negative pressure drainage tubing device provided in this application embodiment has a partition wall inside the drainage tube, dividing it into two independent channels. One channel is connected to an external catheter via a connector, forming a drainage channel; the other channel has an opening on its side wall, which connects to a drug delivery tube, forming a drug delivery channel. When the drainage tube is connected to the connector, a sealing post is inserted into the drug delivery channel to seal it. Thus, medical personnel can administer medication simply by injecting from the end of the externally extended drug delivery tube, making the operation simple and efficient. Simultaneously, the sealing post prevents drug leakage. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a multifunctional negative pressure drainage pipeline device provided in an embodiment of this application;

[0021] Figure 2 yes Figure 1 Schematic diagram of the intermediate connector;

[0022] Figure 3 yes Figure 2 A sectional view of the joint;

[0023] Figure 4 yes Figure 1 Sectional view of AA;

[0024] Figure 5 This is a perspective view of a multifunctional negative pressure drainage pipeline device provided in an embodiment of this application;

[0025] Figure 6 yes Figure 5 Enlarged view of point A in the middle;

[0026] Figure 7 yes Figure 5 Schematic diagram of the intermediate connector;

[0027] Figure 8 yes Figure 5 Schematic diagram of the central drainage tube;

[0028] Figure 9 yes Figure 8 Enlarged view of point B in the middle;

[0029] Figure 10 This is a schematic diagram of one end of a drainage tube inserted into the human body according to an embodiment of this application. Detailed Implementation

[0030] To make the technical problems, technical solutions, and beneficial effects solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0031] like Figures 1 to 3 , Figures 5 to 9 As shown, the multifunctional negative pressure drainage tube device provided in this application embodiment includes a drainage tube 2, one end of which is inserted into the human body and the other end extends out of the body; the end of the drainage tube 2 extending out of the body is connected to an external catheter 3 through a connector 1, and the external catheter 3 is used to connect to a negative pressure device 10.

[0032] The connector 1 is a hollow channel structure with openings at both ends, and a sealing post 11 is provided below the front opening of the connector 1; the drainage tube 2 is provided with a partition wall 21, which divides the drainage tube 2 into two independent channels, one of which is connected to the external conduit 3 through the connector 1 to form a drainage channel 22;

[0033] Another channel has an opening on its side wall, which is connected to the drug delivery tube 4 to form a drug delivery channel 23; and when the drainage tube 2 is connected to the connector 1, the blocking column 11 is inserted into the drug delivery channel 23 to block the drug delivery channel 23.

[0034] In this embodiment, both ends of connector 1 are Luer conical connectors and both meet the requirements of GB / T 1962.2-2001. In actual use, the drainage tube 2 is first inserted into the patient's lesion. Medical staff can then inject medication through the administration tube 4 to act on the lesion, making the operation simple and efficient. Afterwards, a negative pressure device 10 is connected to the external catheter 3. The external catheter 3 is a commonly used instrument in the medical field, mainly used for the suction and drainage of fluid, gas, and purulent blood generated during or after surgical procedures or other wounds. The external catheter 3, connected to the negative pressure device 10, uses negative pressure to suction out fluid from the wound, effectively preventing the accumulation of waste fluid, while simultaneously providing internal fixation to the body cavity, accelerating wound healing time.

[0035] The negative pressure device 10 shown in the figure of this embodiment is an air bag. In other embodiments, the negative pressure device 10 may also be a negative pressure pump or a negative pressure drainage bottle, which is not specifically limited here.

[0036] In this embodiment, the connector 1 abandons the traditional method of injecting drugs through the connector 1 and uses the drug delivery tube 4 for drug delivery, which not only facilitates operation by medical staff, but also avoids accidental injury to themselves.

[0037] In one embodiment, the multifunctional negative pressure drainage tubing device further includes an injection head 5. The first end of the injection head 5 is connected to the drug delivery tube 4, and the second end of the injection head 5 is used for injecting medication. The injection head 5 can be located outside the drug delivery tube 4. Under normal circumstances, the second end of the injection head 5 can be sealed off. However, when medication needs to be injected, the second end of the injection head 5 can be pierced by the needle of a syringe to inject medication. It is understood that the medication injected by the injection head 5 can flow directly into the drug delivery tube 4 through the first end of the injection head 5, thereby realizing the injection of medication.

[0038] In other embodiments, the injection head 5 may be integrally formed with the administration tube 4.

[0039] In this embodiment, the injection head 5 may also be equipped with a one-way valve (not shown in the figure). The inlet of the one-way valve faces the second end of the injection head 5, and the outlet of the one-way valve faces the first end of the injection head 5. The liquid flow direction of the one-way valve is from the inlet to the outlet. By setting a one-way valve, this embodiment ensures that the liquid injected by the injection head can only flow from the first end of the injection head 5 to the drug delivery tube 4, and cannot flow in reverse from the drug delivery tube 4 to the second end of the injection head 5, thereby effectively preventing drug leakage.

[0040] In one embodiment, the multifunctional negative pressure drainage pipeline device further includes a sliding valve 12, which is slidably disposed on the connector 1. The sliding valve 12 can move between a first preset position and a second preset position on the connector 1. When the sliding valve 12 is in the first preset position, it abuts against the drainage pipe 2. When the sliding valve 12 is in the second preset position, the distance between it and the drainage pipe 2 is greater than the distance between it and the drainage pipe 2 when it is in the first preset position.

[0041] In this embodiment, the sliding valve 12 is configured to move along the axial direction of the connector 1. The first preset position is the connection point between the connector 1 and the drainage pipe 2. When the sliding valve 12 is in the first preset position, it can seal the connection point between the connector 1 and the drainage pipe 2, at which point the sliding valve 12 abuts against the drainage pipe 2. The second preset position is a position on the connector 1 furthest from the drainage pipe 2, that is, the position where the sliding valve 12 is furthest from the connector 1. When it is not necessary to seal the connection point between the connector 1 and the drainage pipe 2 (for example, when it is necessary to disconnect the connector 1 and the drainage pipe 2), the sliding valve 12 can be moved to the second preset position. Thus, it can be slidably adjusted according to actual needs to ensure good sealing and stability.

[0042] In one specific embodiment, the inner surface of the sliding valve 12 may be provided with a male thread, and the outer surface of the connector 1 may be provided with a matching female thread. The sliding valve 12 and the connector 1 form a threaded engagement, thus allowing the sliding valve 12 to move back and forth on the connector 1 by rotating it. Of course, in other embodiments, other guiding structures can also be used to achieve the back and forth movement of the sliding valve 12 on the connector 1, and this embodiment is not limited to these.

[0043] In one embodiment, the multifunctional negative pressure drainage tubing device further includes a water injection head 20. The first end of the water injection head 20 is connected to the external catheter 3, and the second end of the water injection head 20 is used to inject a non-medicinal liquid. In this embodiment, the non-medicinal liquid can be clean water or saline solution, etc. The water injection head 20 can be located outside the external catheter 3. Normally, the second end of the water injection head 20 can be sealed, but when medication is needed, the second end of the water injection head 20 can be punctured by the needle of a syringe to inject the non-medicinal liquid.

[0044] In practical applications, before administering drug drainage to a patient, it is often necessary to dilute or dissolve the contents of the stomach with water or saline solution to facilitate drainage. In this embodiment, the water inlet 20 allows the drainage channel 22 to deliver the required water or saline solution to the patient.

[0045] In one embodiment, such as Figure 4 , Figure 9As shown, the axial cross-sectional area of ​​the drainage channel 22 is larger than that of the drug delivery channel 23. This larger axial cross-sectional area of ​​the drainage channel 22 can accelerate the removal of fluid from the patient's lesion.

[0046] In one embodiment, the axial cross-sectional shape of the drug delivery channel 23 is circular; and / or, the axial cross-sectional shape of the drainage channel 22 is crescent-shaped. Circular channels provide smoother fluid flow, reducing flow resistance and turbulence, thereby improving drug delivery efficiency. This design helps ensure that the drug is evenly distributed to the target area. The circular channel design reduces the retention of drug or liquid within the channel, lowering the risk of blockage. Compared to other shapes, circular channels are less prone to blockage by solid particles or deposits. Furthermore, the circular structure has better mechanical strength when subjected to internal and external pressures, effectively resisting pressure changes and reducing the risk of breakage or deformation.

[0047] In one embodiment, the sealing post 11 is made of medical-grade stainless steel, which prevents medication from leaking from the connection between the drug delivery channel and the connector 1. The body of the connector 1 is integrally injection molded, thus meeting strict tolerance requirements and consistent dimensions. This ensures that each part conforms to precise specifications. Furthermore, the integral molding process provides better structural integrity and strength because there are no seams or connection points, reducing potential weaknesses. The body of the connector 1 can be made of polyethylene (PE), which has good flexibility and low-temperature resistance and is commonly used in medical tubing and connectors. Alternatively, polyvinyl chloride (PVC) can also be used, which has good toughness and low-temperature resistance and is commonly used in medical tubing and connectors.

[0048] In one embodiment, such as Figure 10 As shown, the end of the drainage tube 2 that extends into the human body is provided with multiple diversion ports 221, and the multiple diversion ports 221 are respectively connected to the drainage channel 22.

[0049] The design of multiple shunt ports 221 provides a larger surface area, allowing for more even release or drainage of medication or body fluid from the tube, reducing local over-concentration or under-concentration. It also reduces the risk of blockage by internal tissues or secretions. By designing multiple shunt ports 221, the flow of body fluid can be dispersed, thereby reducing the probability of the drainage channel 22 becoming completely blocked and unusable. Secondly, it can better adapt to different anatomical structures and tissue types, especially in some complex body cavities. This design ensures that the drainage tube 2 can effectively contact surrounding tissues, achieving more uniform drug release or body fluid drainage. Furthermore, for situations requiring precise drug delivery, the design of multiple shunt ports 221 helps distribute the drug more evenly within the target area, improving therapeutic efficacy. The multiple shunt ports 221 can be formed by setting multiple sub-channels (not shown in the figure) on the end of the drainage tube 2 that extends into the body. These sub-channels can be connected one-to-one with multiple shunt ports 221, and each sub-channel can output medication or drain body fluid through the connected shunt port 221.

[0050] exist Figure 10 In the embodiment shown, there are three diversion ports 221, and the three diversion ports 221 are arranged along the inner periphery of the drainage pipe 2.

[0051] Furthermore, such as Figure 10 As shown, a diversion component 24 is provided on the outer side of the end of the drainage tube 2 that extends into the human body. Multiple diversion ports 221 are formed on the diversion component 24, and these ports 221 are positioned directly opposite the drainage channel 22. Thus, the diversion effect of the drainage tube 2 can be achieved through the diversion ports 221 on the diversion component 24. Since the diversion effect is achieved by setting the diversion component 24, no additional diversion design is required for the drainage tube 2 (i.e., the aforementioned design of creating sub-channels in the drainage tube 2 to achieve diversion), which helps to reduce the implementation difficulty of the solution in this application.

[0052] It is understood that the diverter 24 may also be provided with an opening, the shape and cross-sectional area of ​​which may be the same as the axial cross-sectional shape and cross-sectional area of ​​the drug delivery channel 23. For example, the opening may also be circular, and the opening may be provided in accordance with the drug delivery channel so that the drug delivery channel 23 can output the drug liquid through the opening.

[0053] The multifunctional negative pressure drainage tubing device provided in this embodiment has a partition wall 21 inside the drainage tube 2, dividing the drainage tube 2 into two independent channels. One channel is connected to an external catheter 3 via a connector, forming a drainage channel 22; the other channel has an opening on its side wall, which is connected to a drug delivery tube 4, forming a drug delivery channel 23. When the drainage tube 2 is connected to the connector 1, a sealing post 11 is inserted into the drug delivery channel 23 to seal it. Thus, medical personnel can administer medication simply by injecting from the end of the externally extended drug delivery tube 4, making the operation simple and efficient. Simultaneously, the sealing post 11 prevents drug leakage.

[0054] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A multifunctional negative pressure drainage tubing device, comprising a drainage tube, one end of which is inserted into the human body and the other end of which extends outside the body; the external end of the drainage tube is connected to an external catheter via a connector, the external catheter being used to connect to a negative pressure device; characterized in that: The connector is a hollow channel structure with openings at both ends, and a sealing post is provided below the front opening of the connector; the drainage tube is provided with a partition wall, which divides the drainage tube into two independent channels, one of which is connected to the external conduit through the connector to form a drainage channel; Another channel sidewall is provided with an opening, which communicates with the drug delivery tube to form a drug delivery channel; and when the drainage tube is connected to the connector, the blocking post is inserted into the drug delivery channel to block the drug delivery channel.

2. The multifunctional negative pressure drainage pipeline device according to claim 1, characterized in that, The multifunctional negative pressure drainage tubing device also includes an injection head, the first end of which is connected to the drug delivery tube, and the second end of which is used to inject the drug solution.

3. The multifunctional negative pressure drainage pipeline device according to claim 2, characterized in that, The injection head is equipped with a one-way valve. The inlet of the one-way valve faces the second end of the injection head, and the outlet of the one-way valve faces the first end of the injection head. The liquid flow direction of the one-way valve is from the inlet to the outlet.

4. The multifunctional negative pressure drainage pipeline device according to claim 1, characterized in that, The multifunctional negative pressure drainage pipeline device also includes a sliding valve, which is slidably disposed on the connector and can move between a first preset position and a second preset position on the connector; When the sliding valve is in the first preset position, it abuts against the drainage pipe; when the sliding valve is in the second preset position, the distance between it and the drainage pipe is greater than the distance between it and the drainage pipe when it is in the first preset position.

5. The multifunctional negative pressure drainage pipeline device according to claim 1, characterized in that, The multifunctional negative pressure drainage pipeline device also includes a water injection head, the first end of which is connected to the external conduit, and the second end of which is used to inject non-medicinal liquid.

6. The multifunctional negative pressure drainage pipeline device according to claim 1, characterized in that, The axial cross-sectional area of ​​the drainage channel is larger than the axial cross-sectional area of ​​the drug delivery channel.

7. The multifunctional negative pressure drainage pipeline device according to claim 6, characterized in that, The axial cross-sectional shape of the drug delivery channel is circular; And / or, the axial cross-sectional shape of the drainage channel is crescent-shaped.

8. The multifunctional negative pressure drainage pipeline device according to claim 1, characterized in that, The sealing column is made of medical-grade stainless steel.

9. The multifunctional negative pressure drainage pipeline device according to any one of claims 1-8, characterized in that, The end of the drainage tube that extends into the human body is provided with multiple diversion ports, and the multiple diversion ports are respectively connected to the drainage channel.

10. The multifunctional negative pressure drainage pipeline device according to claim 9, characterized in that, A diversion component is provided on the outer side of the end of the drainage tube that extends into the human body. Multiple diversion ports are formed on the diversion component, and the multiple diversion ports are positioned directly opposite the drainage channel.

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