Novel drainage device

Abstract

The utility model relates to the technical field of drainage tubes, in particular to a novel drainage device which comprises a catheter, a three-way connector and a drainage tube, an opening in the bottom of the three-way connector is communicated with the catheter, and openings in the other two ends of the three-way connector are communicated with the drainage tube. The drainage tube lower end is smaller than the drainage tube upper end; a mounting groove is formed in an opening, communicated with the drainage tube, of the three-way connector, an annular groove is formed in the mounting groove, and an elastic sealing ring is arranged in the annular groove; the lower end of the drainage tube is arranged in the mounting groove, and the elastic sealing ring is connected with the peripheral wall of the lower end of the drainage tube to form sealing. Sealing can be formed through close contact of the elastic sealing ring and the peripheral wall of the lower end of the drainage tube, liquid leakage can be prevented, air backflow can be prevented, and safety and accuracy in the drainage process are guaranteed. Meanwhile, the drainage tube can be conveniently inserted and pulled out under the elastic action of the elastic sealing ring, and the working efficiency is improved in the drainage tube replacement or sample reserving process.

Description

Technical Field

[0001] The utility model relates to the technical field of drainage tubes, in particular to a novel drainage device. Background Art

[0002] A drainage tube is a medical device that is used to drain fluid or gas accumulated in the body to promote wound healing, prevent infection or monitor disease. Drainage tubes are usually made of soft, flexible materials such as silicone, rubber or polyurethane to adapt to different usage environments and patient needs.

[0003] During postoperative drainage in thoracic and cardiovascular surgery, the patient's drainage tube occasionally needs to be replaced and samples need to be retained. The current drainage tubes are not convenient to plug in and out, and if samples need to be retained, they need to be unplugged at the interface to take samples, which increases the workload of nurses and the risk of hospital infection. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a new type of drainage device, which can facilitate the insertion and extraction of the drainage tube while achieving sealed drainage, thereby improving work efficiency during drainage tube replacement or sample retention.

[0005] To achieve the above-mentioned purpose, according to an embodiment of the first aspect of the utility model, a new drainage device is proposed, including a catheter, a three-way interface and a drainage tube, the bottom opening of the three-way interface is connected to the catheter, and the other two end openings of the three-way interface are connected to the drainage tube; the size of the lower end of the drainage tube is smaller than the size of the upper end of the drainage tube; an installation groove is provided in the opening connecting the three-way interface and the drainage tube, an annular groove is provided in the installation groove, and an elastic sealing ring is provided in the annular groove; the lower end of the drainage tube is arranged in the installation groove, and the elastic sealing ring is connected to the outer peripheral wall of the lower end of the drainage tube to form a seal.

[0006] As a further solution of the utility model: a first support ring is arranged on the outer peripheral wall of the conduit, and the bottom of the three-way interface is arranged on the first support ring.

[0007] As a further solution of the utility model: a second support ring is arranged on the outer peripheral wall of the drainage tube, and the second support ring is arranged above the other two end openings of the three-way interface.

[0008] As a further solution of the utility model: the distance from the second support ring to the bottom of the drainage tube is adapted to the depth of the installation groove.

[0009] As a further solution of the utility model: the sizes of the openings at the other two ends of the three-way interface are larger than the bottom size of the drainage tube.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. The utility model can form a seal through the close contact between the elastic sealing ring and the outer peripheral wall of the lower end of the drainage tube. It can not only prevent leakage, but also prevent air backflow, ensuring the safety and accuracy of the drainage process. At the same time, the elastic force of the elastic sealing ring facilitates the insertion and extraction of the drainage tube, and improves work efficiency during the replacement of the drainage tube or the sample retention process.

[0012] 2. The utility model provides a stable support platform for the three-way interface by setting a first support ring, ensuring a firm and reliable connection between the three-way interface and the catheter, reducing the risk of displacement or falling off of the three-way interface due to external force during use, thereby enhancing the stability of the entire drainage device.

[0013] 3. The utility model provides additional support for the connection between the drainage tube and the three-way interface by setting a second support ring, ensuring that the connection is more stable and reliable. It helps to prevent the drainage tube from falling off or shifting due to patient movement or other external forces, and enhances the stability of the drainage device. At the same time, the second support ring provides a convenient installation and fixing point for medical personnel. By fixing the second support ring, the drainage tube can be more easily connected and fixed to the three-way interface, improving the efficiency and accuracy of the installation process.

[0014] 4. The utility model ensures that the distance from the second support ring to the bottom of the drainage tube is matched with the depth of the installation groove, ensuring that the lower end of the drainage tube can be accurately inserted into the installation groove, avoiding installation difficulties or instability caused by size mismatch. Accurate size adaptation makes the connection between the drainage tube and the three-way interface tighter and more reliable.

[0015] 5. The utility model uses the three-way interface with openings at both ends larger than the bottom of the drainage tube, so medical personnel can more easily insert the bottom of the drainage tube into the opening, reducing the difficulty of installation. This design makes the installation process of the drainage tube faster and smoother, and can adapt to drainage tubes of different sizes. Medical personnel can choose the appropriate drainage tube according to the specific needs of the patient and the drainage situation, which improves the flexibility and applicability of the drainage device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A cross-sectional view of the installation of a new type of drainage device.

[0017] Figure 2 A partial enlarged cross-sectional view of the drainage tube installation.

[0018] Figure 3 It is a cross-sectional view of the drainage tube structure.

[0019] The reference numerals in the figure are: 1, catheter; 2, three-way interface; 21, mounting groove; 211, annular groove; 212, elastic sealing ring; 3, drainage tube; 4, first support ring; 5, second support ring. DETAILED DESCRIPTION

[0020] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figures 1 to 3 As shown, a novel drainage device includes a catheter 1, a three-way interface 2 and a drainage tube 3. The bottom opening of the three-way interface 2 is connected to the catheter 1, and the other two end openings of the three-way interface 2 are connected to the drainage tube 3. The three-way interface 2 is provided to facilitate sample retention.

[0022] The size of the lower end of the drainage tube 3 is smaller than the size of the upper end of the drainage tube 3; since the size of the lower end of the drainage tube 3 is smaller than the size of the upper end of the drainage tube 3, it is convenient to insert the drainage tube 3 into the three-way interface 2 during the actual installation process, thereby reducing the resistance and difficulty during the installation process and improving the efficiency of medical operations.

[0023] An installation groove 21 is provided in the opening connecting the three-way interface 2 and the drainage tube 3, an annular groove 211 is provided in the installation groove 21, and an elastic sealing ring 212 is provided in the annular groove 211; the lower end of the drainage tube 3 is arranged in the installation groove 21, and the elastic sealing ring 212 is connected to the outer peripheral wall of the lower end of the drainage tube 3 to form a seal.

[0024] The elastic sealing ring 212 is in close contact with the outer peripheral wall of the lower end of the drainage tube 3 to form a seal, which can not only prevent leakage, but also prevent air backflow, thereby ensuring the safety and accuracy of the drainage process. At the same time, the elastic force of the elastic sealing ring 212 facilitates the insertion and extraction of the drainage tube 3, thereby improving work efficiency during the replacement of the drainage tube 3 or the sample retention process.

[0025] A first supporting ring 4 is arranged on the outer peripheral wall of the conduit 1 , and the bottom of the three-way interface 2 is arranged on the first supporting ring 4 .

[0026] By providing the first support ring 4, a stable support platform is provided for the three-way interface 2, ensuring a firm and reliable connection between the three-way interface 2 and the catheter 1, reducing the risk of displacement or falling off of the three-way interface 2 due to external force during use, thereby enhancing the stability of the entire drainage device.

[0027] A second support ring 5 is disposed on the outer peripheral wall of the drainage tube 3 , and the second support ring 5 is disposed above the other two end openings of the three-way interface 2 .

[0028] The second support ring 5 is provided to provide additional support for the connection between the drainage tube 3 and the three-way interface 2, ensuring that the connection is more stable and reliable. It helps to prevent the drainage tube 3 from falling off or shifting due to patient movement or other external forces, and enhances the stability of the drainage device. At the same time, the second support ring 5 provides a convenient installation and fixing point for medical personnel. By fixing the second support ring 5, the drainage tube 3 can be more easily connected and fixed to the three-way interface 2, improving the efficiency and accuracy of the installation process.

[0029] The distance from the second supporting ring 5 to the bottom of the drainage tube 3 is matched with the depth of the mounting groove 21 .

[0030] The distance from the second support ring 5 to the bottom of the drainage tube 3 is matched with the depth of the installation groove 21, ensuring that the lower end of the drainage tube 3 can be accurately inserted into the installation groove 21, avoiding installation difficulties or instability caused by size mismatch. Accurate size matching makes the connection between the drainage tube 3 and the three-way interface 2 tighter and more reliable.

[0031] The sizes of the openings at the other two ends of the three-way interface 2 are larger than the bottom size of the drainage tube 3 .

[0032] Since the size of the openings at the other two ends of the three-way interface 2 is larger than the size of the bottom of the drainage tube 3, medical personnel can more easily insert the bottom of the drainage tube 3 into the openings, reducing the difficulty of installation. This design makes the installation process of the drainage tube 3 faster and smoother, and can adapt to drainage tubes 3 of different sizes. Medical personnel can choose a suitable drainage tube 3 according to the specific needs and drainage conditions of the patient, which improves the flexibility and applicability of the drainage device.

[0033] The working principle of the utility model is as follows: first, the three-way interface 2 is installed on the catheter 1, and the first support ring 4 on the outer wall of the catheter 1 provides stable support for the three-way interface 2 to ensure that the connection between the three-way interface 2 and the catheter 1 is firm and reliable and not easily displaced or fallen off due to external force.

[0034] Next, the drainage tube 3 is installed. Since the design of the drainage tube 3 adopts the characteristic that the size of the lower end is smaller than the size of the upper end, the drainage tube 3 can be easily and accurately inserted into the installation groove 21 of the three-way interface 2. The elastic sealing ring 212 in the annular groove 211 set in the installation groove 21 is in close contact with the outer peripheral wall of the lower end of the drainage tube 3, forming a reliable sealing connection. At the same time, the elastic force of the elastic sealing ring 212 also makes the drainage tube 3 smoother when inserted and withdrawn, improving the efficiency of medical operations.

[0035] In addition, during the insertion of the drainage tube 3, the second support ring 5 on the outer peripheral wall of the drainage tube 3 provides additional support for the connection between the drainage tube 3 and the three-way interface 2, thereby improving the stability of the installation of the drainage tube 3. At the same time, the second support ring 5 also provides a convenient installation and fixing point for medical personnel, making the installation process more efficient and accurate.

[0036] The above embodiments are only used to illustrate the technical method of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical method of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the utility model.

Claims

1. A novel drainage device, comprising a catheter (1), a three-way interface (2) and a drainage tube (3), wherein the bottom opening of the three-way interface (2) is connected to the catheter (1), and the other two end openings of the three-way interface (2) are connected to the drainage tube (3); It is characterized in that The size of the lower end of the drainage tube (3) is smaller than the size of the upper end of the drainage tube (3); An installation groove (21) is provided in the opening communicating between the three-way interface (2) and the drainage tube (3), an annular groove (211) is provided in the installation groove (21), and an elastic sealing ring (212) is provided in the annular groove (211); The lower end of the drainage tube (3) is arranged in the installation groove (21), and the elastic sealing ring (212) is connected to the outer peripheral wall of the lower end of the drainage tube (3) to form a seal.

2. A novel drainage device according to claim 1, characterized in that: A first supporting ring (4) is arranged on the outer peripheral wall of the conduit (1), and the bottom of the three-way interface (2) is arranged on the first supporting ring (4).

3. A novel drainage device according to claim 1, characterized in that: A second support ring (5) is provided on the outer peripheral wall of the drainage tube (3), and the second support ring (5) is arranged above the other two end openings of the three-way interface (2).

4. A novel drainage device according to claim 3, characterized in that: The distance from the second support ring (5) to the bottom of the drainage tube (3) is adapted to the depth of the mounting groove (21).

5. A novel drainage device according to claim 1, characterized in that: The dimensions of the openings at the other two ends of the three-way interface (2) are larger than the dimensions of the bottom of the drainage tube (3).

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