Anti-reflux medical suction tube

Abstract

The utility model provides a kind of medical suction tube of anti backflow, including check valve seat, the middle part position of suction tube body is equipped with check valve seat, and the both ends of check valve seat are respectively provided with liquid inlet port and liquid outlet port;The utility model installs a check valve seat on suction tube body, can pass through check valve seat to prevent the liquid backflow inside suction tube body, and the liquid inlet port and the liquid outlet port at the both ends of check valve seat are all provided with liquid guide hose and outer thread sleeve body, when check valve seat is installed, first, the pagoda joint on suction tube body is inserted into liquid guide hose inside, realize internal pipeline intercommunication, then connect outer sleeve and be screwed again in outer thread sleeve body outside, realize external connection, in this way, double connection structure, can effectively guarantee the strength and sealing performance of check valve seat connection, while the connection operation with suction tube body is simple and efficient, and check valve seat is replaced conveniently.

Description

Technical Field

[0001] This utility model belongs to the field of suction tube technology and relates to a medical suction tube that prevents backflow. Background Technology

[0002] A suction tube is a hollow structure with a cylindrical suction head at the front end and an arc-shaped bottom. Suction holes are evenly distributed on the annular wall. There are many types of suction tubes, mainly used in orthopedics, neurosurgery, obstetrics and gynecology, urology, and thoracic surgery. Thoracic and abdominal suction tubes are mainly used in thoracic surgery and general surgery for suction purposes during clinical surgery. Medical suction tubes are a commonly used device in hospitals to remove secretions and blood from patients. Traditional medical suction tubes are usually made of plastic, which is easily contaminated, and suction tubes are not easy for medical staff to fix during long-term use.

[0003] The existing suction tube structure consists of a single flexible tube with suction heads at both ends. However, due to the lack of valve control, backflow can occur when the suction tube encounters excessive resistance while drawing liquid. This issue needs to be addressed. Summary of the Invention

[0004] The purpose of this invention is to provide a backflow-proof medical suction tube to solve the problems mentioned in the background art.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A backflow-proof medical suction tube includes a one-way valve seat, an inlet port, an outlet port, a connecting sleeve, and a suction tube body. The one-way valve seat is installed in the middle of the suction tube body. The inlet port and outlet port are respectively provided at both ends of the one-way valve seat. The inlet port and outlet port are threadedly connected to the connecting sleeve provided on the suction tube body.

[0007] In the aforementioned anti-backflow medical suction tube, a pagoda connector is provided inside the connecting jacket, and a liquid guiding tube is provided inside the inlet port and the outlet port, with the pagoda connector inserted into the liquid guiding tube.

[0008] In the aforementioned anti-backflow medical suction tube, a rubber gasket is provided on the outer side of the connecting sleeve, and the rubber gasket is located at the connection between the inlet port, the outlet port, and the connecting sleeve.

[0009] In the aforementioned anti-backflow medical suction tube, one end of the inlet port and the outlet port is provided with an external threaded sleeve, the inner wall surface of the connecting sleeve is provided with an internal thread, and the connecting sleeve is threaded onto the outside of the external threaded sleeve through the internal thread.

[0010] In the aforementioned anti-backflow medical suction tube, a valve core is provided inside the one-way valve seat, and an antibacterial coating is provided on the outside of the one-way valve seat.

[0011] Compared with the prior art, the advantages of this anti-backflow medical suction tube are:

[0012] This application installs a one-way valve seat on the suction tube body, which can prevent the backflow of liquid inside the suction tube body. The inlet and outlet ports at both ends of the one-way valve seat are equipped with a liquid guiding hose and an external threaded sleeve. When installing the one-way valve seat, first insert the pagoda connector on the suction tube body into the liquid guiding hose to achieve internal pipeline connection. Then, the connecting sleeve is threaded onto the outside of the external threaded sleeve to achieve external connection. In this way, the double connection structure can effectively ensure the strength and sealing performance of the one-way valve seat connection. At the same time, the connection operation with the suction tube body is simple and efficient, and it is convenient to replace the one-way valve seat. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a backflow-preventing medical suction tube according to this utility model.

[0014] Figure 2 This is a schematic diagram of the internal structure of the connecting jacket of a medical suction tube for preventing backflow, according to this utility model.

[0015] In the diagram, 1 is the one-way valve seat; 2 is the inlet port; 3 is the outlet port; 4 is the connecting sleeve; 5 is the suction tube body; 6 is the rubber gasket; 7 is the pagoda connector; 8 is the internal thread; 9 is the liquid guiding hose; and 10 is the external thread sleeve. Detailed Implementation

[0016] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0017] A backflow-proof medical suction tube includes a one-way valve seat 1, an inlet port 2, an outlet port 3, a connecting sleeve 4, and a suction tube body 5. The one-way valve seat 1 is installed in the middle of the suction tube body 5. The inlet port 2 and the outlet port 3 are respectively provided at both ends of the one-way valve seat 1. The inlet port 2 and the outlet port 3 are threadedly connected to the connecting sleeve 4 provided on the suction tube body 5.

[0018] like Figure 1 , Figure 2 As shown, this utility model provides a backflow-proof medical suction tube. Specifically, the inner part of the connecting jacket 4 is provided with a pagoda connector 7, and the inner parts of the inlet port 2 and the outlet port 3 are provided with a liquid guiding tube 9, with the pagoda connector 7 inserted into the inner part of the liquid guiding tube 9.

[0019] like Figure 1 , Figure 2 As shown, this utility model discloses a medical suction tube for preventing backflow. Specifically, a rubber gasket 6 is provided on the outer side of the connecting jacket 4, and the rubber gasket 6 is located at the connection between the inlet port 2, the outlet port 3 and the connecting jacket 4.

[0020] like Figure 1 , Figure 2 As shown, this utility model provides a backflow-proof medical suction tube. Specifically, one end of the inlet port 2 and the outlet port 3 is provided with an external threaded sleeve 10, and the inner wall surface of the connecting sleeve 4 is provided with an internal thread 8. The connecting sleeve 4 is threaded onto the outside of the external threaded sleeve 10 through the internal thread 8.

[0021] like Figure 1 , Figure 2 As shown, this utility model provides a backflow-proof medical suction tube. Specifically, the one-way valve seat 1 has a valve core inside and an antibacterial coating on the outside.

[0022] This utility model discloses a backflow-preventing medical suction tube. A one-way valve seat 1 is installed on the suction tube body 5 to prevent the backflow of liquid inside the suction tube body 5. The one-way valve seat 1 is provided with a liquid guiding hose 9 and an external threaded sleeve 10 at both ends of the liquid inlet port 2 and liquid outlet port 3. When installing the one-way valve seat 1, the pagoda connector 7 on the suction tube body 5 is first inserted into the liquid guiding hose 9 to achieve internal pipeline connection. Then, the connecting sleeve 4 is threaded onto the outside of the external threaded sleeve 10 to achieve external connection. In this way, the double connection structure can effectively ensure the strength and sealing performance of the one-way valve seat 1 connection. At the same time, the connection operation with the suction tube body 5 is simple and efficient, and it is convenient to replace the one-way valve seat 1.

[0023] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.

Claims

1. A backflow-preventing medical suction tube, comprising a one-way valve seat (1), an inlet port (2), an outlet port (3), a connecting sleeve (4), and a suction tube body (5), characterized in that, A one-way valve seat (1) is installed in the middle of the suction tube body (5). The one-way valve seat (1) has an inlet port (2) and an outlet port (3) at its two ends. The inlet port (2) and outlet port (3) are threadedly connected to a connecting sleeve (4) on the suction tube body (5). A pagoda connector (7) is installed inside the connecting sleeve (4). A guide hose (9) is installed inside the inlet port (2) and outlet port (3), and the pagoda connector (7) is inserted into the guide hose (9). The connecting sleeve (… 4) is provided with a rubber gasket (6) on the outside, and the rubber gasket (6) is provided at the connection of the liquid inlet port (2), the liquid outlet port (3) and the connecting sleeve (4); one end of the liquid inlet port (2) and the liquid outlet port (3) is provided with an external threaded sleeve (10), the inner wall surface of the connecting sleeve (4) is provided with an internal thread (8), and the connecting sleeve (4) is threaded onto the outside of the external threaded sleeve (10) through the internal thread (8); the one-way valve seat (1) is provided with a valve core inside, and the one-way valve seat (1) is provided with an antibacterial coating on the outside.

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