A double-lumen external ventricular drainage tube with rapid external connection function

Abstract

The utility model belongs to the technical field of double-cavity ventricular ventricular drainage tubes, specifically a double-cavity ventricular ventricular drainage tube with a quick external connection function, including a first drainage tube, a second drainage tube installed at the side end of the first drainage tube, a locking mechanism installed on the first drainage tube, the first drainage tube including an outer tube, an inner tube fixedly connected to the inner wall of the outer tube, a cavity formed between the inner tube and the outer tube, one end of the second drainage tube installed in the cavity, the outer surface of the second drainage tube fits with the inner surface of the outer tube, the inner surface of the second drainage tube fits with the outer surface of the inner tube, and a groove is provided on the outer surface of the inner tube. Under the action of the first drainage tube, the second drainage tube and the locking mechanism, the utility model only needs to insert the other end of the second drainage tube into the other end of the first drainage tube when in use, so as to realize the quick connection between the first drainage tube and the second drainage tube, and can be quickly replaced when the internal space of the container storing the effusion is insufficient.

Description

Technical Field

[0001] The utility model belongs to the technical field of double-cavity ventricular external drainage tubes, in particular to a double-cavity ventricular external drainage tube with a rapid external connection function. Background Art

[0002] Drainage tubes are used for clinical surgical drainage. They are medical devices that guide pus or blood accumulated between human tissues or in body cavities to the outside of the body to prevent postoperative infection and promote wound healing. They are generally made of silicone rubber or polyurethane. When in use, one end of the catheter is inserted into the drainage site in the body or on the wound surface, and the other end can be connected to other external devices such as drainage tubes outside the body to drain the fluid outside the body through the pressure of the body, gravity or negative pressure suction.

[0003] When the drainage tube is in use, one end of the tube is fixed on the patient's body surface, and the other end is connected to the instrument to extract the accumulated fluid into the container for storage, thereby achieving the purpose of continuous negative pressure extraction of the accumulated fluid. However, the capacity of the extraction and storage container is limited. When it is almost full, the container needs to be separated from the tube and replaced with a new container for extraction. The existing drainage tube is generally connected by a thread. When in use, the tube needs to be rotated to connect the container to the drainage tube. The operation is inconvenient and the drainage tube cannot be connected quickly. Summary of the invention

[0004] The utility model aims to provide a double-lumen external ventricular drainage tube with a quick external connection function, which can realize quick connection between a first drainage tube and a second drainage tube, and can quickly replace a container for storing effusion when the internal space is insufficient.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a double-lumen external ventricular drainage tube with a quick external connection function, including a first drainage tube, a second drainage tube is installed at the side end of the first drainage tube, a locking mechanism is installed on the first drainage tube, the first drainage tube includes an outer tube, the inner wall of the outer tube is fixedly connected to the inner tube, a cavity is formed between the inner tube and the outer tube, one end of the second drainage tube is installed in the cavity, the outer surface of the second drainage tube is in contact with the inner surface of the outer tube, the inner surface of the second drainage tube is in contact with the outer surface of the inner tube, the outer surface of the inner tube is provided with grooves, and the number of the grooves is multiple.

[0006] Optionally, a side tube is fixedly connected to the outer surface of the outer tube, the side tube is communicated with the interior of the outer tube, and an end cap is installed at one end of the side tube away from the outer tube.

[0007] Optionally, the locking mechanism includes an outer ring, which is installed on the outer surface of the outer tube. A threaded hole is provided on the outer surface of the outer ring. The internal thread of the threaded hole is connected to a threaded column. The bottom of the threaded column is movably connected to an upper locking ring, and the inner surface of the upper locking ring is in contact with the outer surface of the outer tube.

[0008] Optionally, the upper locking ring is an arc-shaped structure, and a groove is provided on the surface of the upper locking ring.

[0009] Optionally, the inner surface of the outer ring is fixedly connected to a base, the top of the base is fixedly connected to a lower locking ring, the inner surface of the lower locking ring fits with the outer surface of the outer tube, and the lower locking ring is located below the upper locking ring.

[0010] Optionally, the lower locking ring is an arc-shaped structure, and the lower locking ring is located inside the slot.

[0011] Optionally, a handle is fixedly connected to the top of the threaded column.

[0012] Optionally, the outer tube is a hose, the inner tube is a hard tube, and the second drainage tube is a hose.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The utility model is provided with a flow tube, a second drainage tube and a locking mechanism. When in use, one end of the first drainage tube is connected to the negative pressure container, one end of the second drainage tube is fixed to the patient's body surface, and then the other end of the second drainage tube is installed on the other end of the first drainage tube. Then, the upper locking ring can be controlled to move downward by rotating the threaded column, and the outer tube and the second drainage tube can be squeezed in cooperation with the lower locking ring. The outer tube and the second drainage tube are deformed under pressure and will be tightly attached to the outer surface of the inner tube. The accumulated fluid flowing out of the second drainage tube will pass through the inner tube to the rear half of the outer tube, and finally enter the negative pressure container for storage. The utility model can realize the quick connection of the first drainage tube and the second drainage tube, so that the drainage tube can be quickly connected to the negative pressure container, so that the body fluid can be smoothly collected in the negative pressure container, and when the internal space of the container for storing the accumulated fluid is insufficient, it can be quickly replaced.

[0015] 2. The utility model is provided with an inner tube and a groove. When in use, the second drainage tube is deformed under pressure, the inner surface of the second drainage tube will be tightly attached to the surface of the inner tube, and the inner wall portion of the second drainage tube will be deformed and enter the inside of the groove, thereby increasing the friction between the second drainage tube and the inner tube, making it difficult for the second drainage tube to detach from the first drainage tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of a vertical cross-sectional three-dimensional structure of the utility model;

[0019] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0020] Figure 4 For this utility model Figure 2 A schematic diagram of the enlarged structure at B in the middle;

[0021] Figure 5 It is a schematic diagram of the internal three-dimensional structure of the locking mechanism of the utility model.

[0022] In the figure: 1. first drainage tube; 101. outer tube; 102. inner tube; 103. groove; 104. side tube; 105. end cover; 2. second drainage tube; 3. locking mechanism; 301. outer ring; 302. threaded hole; 303. threaded column; 304. upper locking ring; 305. slot; 306. base; 307. lower locking ring. DETAILED DESCRIPTION

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0024] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0025] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0027] Reference Figure 1-4 , a double-lumen external ventricular drainage tube with a quick external connection function provided by an embodiment of the utility model is now described. A double-lumen external ventricular drainage tube with a quick external connection function comprises a first drainage tube 1, and a second drainage tube 2 is installed at the side end of the first drainage tube 1. When in use, one end of the first drainage tube 1 is connected to a negative pressure container (the negative pressure container can be a drainage bag or other device), one end of the second drainage tube 2 is fixed to the patient's body surface, and then the other end of the second drainage tube 2 is installed at the other end of the first drainage tube 1, so as to negatively drain and collect the effusion on the patient's body surface. A locking mechanism 3 is installed on the first drainage tube 1. The first drainage tube 1 comprises an outer tube 101, and an inner tube 102 is fixedly connected to the inner wall of the outer tube 101. A cavity is formed between the inner tube 102 and the outer tube 101, and one end of the second drainage tube 2 is installed in the cavity. The other end of the second drainage tube 2 is installed between the outer tube 101 and the inner tube 102, so that the first drainage tube 1 and the second drainage tube 2 can be connected. The drainage tubes 2 are connected together, so as to realize the quick connection between the first drainage tube 1 and the second drainage tube 2. The outer surface of the second drainage tube 2 fits with the inner surface of the outer tube 101, and the inner surface of the second drainage tube 2 fits with the outer surface of the inner tube 102. The outer surface of the inner tube 102 is provided with a groove 103, and the number of the grooves 103 is multiple. When the second drainage tube 2 is deformed under pressure, the friction between the second drainage tube 2 and the inner tube 102 can be increased to prevent the second drainage tube 2 from escaping from the cavity. The outer tube 101 is a hose, the inner tube 102 is a hard tube, and the second drainage tube 2 is a hose. Both the outer tube 101 and the second drainage tube 2 are silicone hoses, which will be deformed after being compressed. The inner tube 102 is a plastic hard tube, which is supported inside the second drainage tube 2, so that the accumulated fluid can enter the first drainage tube 1 through the second drainage tube 2, and finally enter the negative pressure container.

[0028] Compared with the prior art, the double-lumen extracerebral ventricular drainage tube with a quick external connection function provided by the utility model only needs to be inserted into the other end of the first drainage tube 1 during use to achieve a quick connection between the first drainage tube 1 and the second drainage tube 2, and can be quickly replaced when the internal space of the container for storing the effusion is insufficient.

[0029] In another embodiment of the present invention, please refer to Figure 1 and Figure 2 The outer surface of the outer tube 101 is fixedly connected with a side tube 104, the side tube 104 is connected with the inside of the outer tube 101, and an end cap 105 is installed at one end of the side tube 104 away from the outer tube 101. The first drainage tube 1 has two chambers to meet the drainage needs of different needs.

[0030] In another embodiment of the present invention, please refer to Figures 1 to 5 The locking mechanism 3 includes an outer ring 301, which is mounted on the outer surface of the outer tube 101. A threaded hole 302 is provided on the outer surface of the outer ring 301. A threaded column 303 is connected to the inner thread of the threaded hole 302. An upper locking ring 304 is movably connected to the bottom of the threaded column 303. The upper locking ring 304 can be controlled to move up and down by rotating the threaded column 303. The inner surface of the upper locking ring 304 fits the outer surface of the outer tube 101. The upper locking ring 304 is an arc-shaped structure. A slot 305 is provided on the surface of the upper locking ring 304. The inner surface of the outer ring 301 is fixedly connected to a base 306 A lower locking ring 307 is fixedly connected to the top of the base 306, and the inner surface of the lower locking ring 307 fits with the outer surface of the outer tube 101. The lower locking ring 307 is located below the upper locking ring 304. The lower locking ring 307 is an arc-shaped structure. The lower locking ring 307 is located inside the slot 305. The upper locking ring 304 cooperates with the lower locking ring 307 to squeeze the outer tube 101 and the second drainage tube 2, so that the first drainage tube 1 and the second drainage tube 2 can be connected together for easy use. A handle is fixedly connected to the top of the threaded column 303 to facilitate driving the threaded column 303 to rotate.

[0031] Working principle: When the utility model is used, one end of the first drainage tube 1 is connected to the negative pressure container, one end of the second drainage tube 2 is fixed on the patient's body surface, and then the other end of the second drainage tube 2 is installed on the other end of the first drainage tube 1. Then, the upper locking ring 304 can be controlled to move downward by rotating the threaded column 303, and the outer tube 101 and the second drainage tube 2 can be squeezed in cooperation with the lower locking ring 307. The outer tube 101 and the second drainage tube 2 are deformed by pressure and will be tightly attached to the outer surface of the inner tube 102. The accumulated fluid flowing out of the second drainage tube 2 will pass through the inner tube 102 to the rear half of the outer tube 101, and finally enter the negative pressure container for storage. When the utility model is used, only the other end of the second drainage tube 2 needs to be inserted into the other end of the first drainage tube 1 to achieve a quick connection, and when the internal space of the container for storing the accumulated fluid is insufficient, it can be quickly replaced.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A double-lumen external ventricular drainage tube with a quick external connection function, comprising a first drainage tube (1), characterized in that: A second drainage tube (2) is installed at the side end of the first drainage tube (1), and a locking mechanism (3) is installed on the first drainage tube (1). The first drainage tube (1) comprises an outer tube (101), and the inner wall of the outer tube (101) is fixedly connected to an inner tube (102), and a cavity is formed between the inner tube (102) and the outer tube (101). One end of the second drainage tube (2) is installed in the cavity, and the outer surface of the second drainage tube (2) is in contact with the inner surface of the outer tube (101), and the inner surface of the second drainage tube (2) is in contact with the outer surface of the inner tube (102). The outer surface of the inner tube (102) is provided with grooves (103), and the number of the grooves (103) is multiple.

2. The double-lumen external ventricular drainage tube with rapid external connection function as claimed in claim 1, characterized in that: A side tube (104) is fixedly connected to the outer surface of the outer tube (101); the side tube (104) is in communication with the interior of the outer tube (101); and an end cap (105) is installed at one end of the side tube (104) away from the outer tube (101).

3. The double-lumen external ventricular drainage tube with rapid external connection function as claimed in claim 1, characterized in that: The locking mechanism (3) comprises an outer ring (301), the outer ring (301) being mounted on the outer surface of the outer tube (101), the outer surface of the outer ring (301) being provided with a threaded hole (302), the inner thread of the threaded hole (302) being connected to a threaded column (303), the bottom of the threaded column (303) being movably connected to an upper locking ring (304), and the inner surface of the upper locking ring (304) being in contact with the outer surface of the outer tube (101).

4. The double-lumen external ventricular drainage tube with rapid external connection function as claimed in claim 3, characterized in that: The upper locking ring (304) is an arc-shaped structure, and a clamping groove (305) is provided on the surface of the upper locking ring (304).

5. The double-lumen external ventricular drainage tube with rapid external connection function as claimed in claim 4, characterized in that: The inner surface of the outer ring (301) is fixedly connected to a base (306), the top of the base (306) is fixedly connected to a lower locking ring (307), the inner surface of the lower locking ring (307) is in contact with the outer surface of the outer tube (101), and the lower locking ring (307) is located below the upper locking ring (304).

6. The double-lumen external ventricular drainage tube with rapid external connection function as claimed in claim 5, characterized in that: The lower locking ring (307) is an arc-shaped structure, and the lower locking ring (307) is located inside the clamping groove (305).

7. The double-lumen external ventricular drainage tube with rapid external connection function as claimed in claim 3, characterized in that: A handle is fixedly connected to the top of the threaded column (303).

8. The double-lumen external ventricular drainage tube with rapid external connection function as claimed in claim 1, characterized in that: The outer tube (101) is a soft tube, the inner tube (102) is a hard tube, and the second drainage tube (2) is a soft tube.

Images