Pre-filled catheter flusher

Abstract

The utility model relates to the technical field of catheter flushers, and discloses a pre-filled catheter flusher which comprises a main shell and an arranged auxiliary shell. A threaded groove is formed in the surface of the injection head; the convex rotating plate and the concave fixing plate are arranged on the side edges of the handles, the convex rotating plate is rotationally connected with the corresponding handle, and the concave fixing plate is fixedly connected with the corresponding handle. According to the pre-filling type catheter flusher, the main shell and the auxiliary shell are communicated with the corresponding injection heads respectively, the end of the convex rotating plate rotates into the concave fixing plate, so that the three sets of handles are connected, and when the pre-filling type catheter flusher is used, the three sets of injection heads are connected with corresponding connectors of a three-cavity deep vein catheter; and then the handle is pushed to inject normal saline into the three-cavity deep venous catheter at the same time for flushing. The double-cavity or three-cavity deep vein tube can be flushed at the same time, use is convenient, operation is easy, meanwhile, the connecting structures of the three sets of handles can be disassembled and assembled according to the use condition, and adjustment is convenient according to the condition.

Description

Technical Field

[0001] This utility model relates to the field of catheter flushing device technology, specifically a pre-filled catheter flushing device. Background Technology

[0002] In cell biology, a vessel (xylem) refers to the long-distance transport system of water and inorganic salts in the xylem of vascular plants, composed of columnar cells. In industry, a vessel typically refers to the duct for underwater concrete pouring in bored piles. This type of duct is used in large-scale bridge engineering, railway engineering, highway engineering, hydropower engineering, and underwater pouring of bored piles for high-rise foundations. The composition of a duct flushing device varies depending on its type and application, but it generally includes containers and pipes for storing and transferring flushing fluid, as well as valves and syringes for controlling the flow and discharge of the flushing fluid. Pre-filled duct flushing devices are convenient medical devices.

[0003] A typical pre-filled catheter flushing device usually consists of an outer casing, a plunger, a piston, and a conical cap. The outer casing typically protects the internal components and serves as a handle. The plunger, connected to the piston, moves the piston within the syringe. Driven by the plunger, the piston slides within the syringe, thereby expelling or drawing in liquid. The conical cap, a tapered structure at the end of the syringe, is used to connect the catheter.

[0004] Traditional triple-lumen deep vein catheters (DVCs) are widely used in clinical practice due to their advantages such as long indwelling time, ease of operation, wide range of infusion options, and good catheter elasticity. However, improper post-insertion care can not only affect the continued use of the catheter but also cause unnecessary pain and financial loss to the patient. Double-lumen or triple-lumen DVCs also exist. During use, the needle tip is inserted into the patient's vein, while the external end can be used for various procedures, such as intravenous infusions and blood transfusions. However, this method requires flushing the catheter tip with a pre-filled catheter flushing device after each medication administration. The flushing device injects saline solution into the DVC to flush the medication into the vein. Since most DVCs are double-lumen or triple-lumen, each connector needs to be connected to a flushing device, and the flushing process requires pushing and flushing each catheter individually, which is cumbersome. Therefore, a pre-filled catheter flushing device is proposed. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a pre-filled catheter flushing device to solve the technical problem that, during flushing, each connector needs to be connected to a catheter flushing device, and each catheter needs to be pushed and flushed one by one, which is very cumbersome.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a pre-filled catheter flushing device, comprising:

[0009] The main housing and the secondary housings located on both sides of the main housing are provided with core rods in the inner cavities of both the main housing and the secondary housings, and pistons and handles are respectively provided at the ends of the core rods;

[0010] An injection head is located at the end of the main housing and the secondary housing, and the surface of the injection head is provided with a threaded groove;

[0011] A convex rotating plate and a concave fixing plate are located on the side of the handle. The convex rotating plate is rotatably connected to the corresponding handle, while the concave fixing plate is fixedly connected to the corresponding handle. Corresponding injection heads are connected to the main housing and the sub-housing respectively. The end of the convex rotating plate rotates into the concave fixing plate, connecting the three sets of handles. In use, the three sets of injection heads are connected to the corresponding connectors of the three-lumen deep vein catheter, and then the handles are pushed to simultaneously inject saline into the interior of the three-lumen deep vein catheter for flushing. On the one hand, it allows for simultaneous flushing of double-lumen or triple-lumen deep vein catheters, making it convenient and simple to operate. The connection between the three sets of handles can be disassembled and reassembled as needed. On the other hand, compared to the traditional plug-in connection between the injection head and the deep vein catheter, this structure uses a threaded connection for locking, making the connection tighter and preventing the connector from being forced open due to high pushing pressure during injection flushing. This makes the connection more convenient and secure.

[0012] Preferably, the main housing and the sub-housing are vertically mounted with protruding plates at the center of their top and bottom, and the protruding plates are generally arc-shaped. These protruding plates facilitate the extraction and injection of saline solution.

[0013] Preferably, annular connecting plates are provided on both the top and bottom sides of the main housing and the sub-housing, and bolts are connected to the top and bottom of the annular connecting plates. The annular connecting plates are connected to the main housing and the sub-housing via bolts, which facilitates disassembly and assembly.

[0014] Preferably, threaded holes are provided on both the top and bottom sides of the main housing and the sub-housing, and the positions of the threaded holes and bolts correspond to each other. The bolts are inserted into the threaded holes for threaded connection.

[0015] Preferably, there are three sets of annular connecting plates, and a side concave block and a side convex block are respectively added to the center position of the outer side of the annular connecting plate. The annular connecting plates on the sub-shell are connected to the side concave blocks of the annular connecting plates on the main shell by inserting the side convex blocks into them. This not only ensures that the main shell and the sub-shell form a whole for simultaneous operation, but also facilitates the assembly and disassembly of the main shell and the sub-shell.

[0016] Preferably, the side protrusion and side recess are designed in a "T" shape, and the side recess and side protrusion are positioned correspondingly. The side protrusion is inserted into the interior of the side recess for connection, and the T-shaped design allows the side protrusion and side recess to be separated and installed only by plugging and unplugging.

[0017] Compared with the prior art, this utility model provides a pre-filled catheter flushing device, which has the following beneficial effects:

[0018] This pre-filled catheter flushing device features corresponding injection heads connected to the main and secondary housings. Compared to traditional plug-in connections between injection heads and deep vein catheters, this structure uses a threaded connection for locking, resulting in a tighter connection and preventing the connector from being forced open during flushing due to excessive pressure. This makes the connection more convenient and secure. The end of the rotating plate rotates into the recessed plate, connecting the three handles. In use, the three injection heads are connected to their corresponding connectors on the three-lumen deep vein catheter, and then the handles are pushed to simultaneously inject saline into the catheter for flushing. It can simultaneously flush double-lumen or triple-lumen deep vein catheters, offering convenient and simple operation. The connection between the three handles can be easily assembled and disassembled as needed. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a cross-sectional view of the internal structure of the sub-shell of this utility model;

[0021] Figure 3 This is a schematic diagram of the separation structure of the convex rotating plate and the concave fixing plate of this utility model;

[0022] Figure 4 This is a schematic diagram of the separation structure of the side concave block and the side convex block of this utility model.

[0023] In the diagram: 1. Main housing; 2. Secondary housing; 3. Protruding plate; 4. Core rod; 5. Piston; 6. Handle; 7. Protruding rotating plate; 8. Concave fixing plate; 9. Injection head; 10. Threaded groove; 11. Annular connecting plate; 12. Bolt; 13. Side concave block; 14. Side protruding block; 15. Threaded hole. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] This utility model provides a technical solution: a pre-filled catheter flushing device, comprising: (see details) Figure 1 , Figure 2 The main housing 1 and the secondary housing 2 are provided on both sides of the main housing 1. The inner cavity of the main housing 1 and the secondary housing 2 are provided with a core rod 4, and a piston 5 and a handle 6 are respectively provided at the end of the core rod 4.

[0026] Injection head 9 is disposed at the end of the main housing 1 and the secondary housing 2, and threaded groove 10 is formed on the surface of injection head 9;

[0027] Please see Figure 3 A convex rotating plate 7 and a concave fixing plate 8 are disposed on the side of the handle 6, with the convex rotating plate 7 rotatably connected to the corresponding handle 6, and the concave fixing plate 8 fixedly connected to the corresponding handle 6. Corresponding injection heads 9 are connected to the main housing 1 and the secondary housing 2 respectively. The end of the convex rotating plate 7 rotates into the concave fixing plate 8, connecting the three sets of handles 6. In use, the three sets of injection heads 9 are connected to the corresponding connectors of the three-lumen deep vein catheter, and then the handles 6 are pushed to simultaneously inject saline into the interior of the three-lumen deep vein catheter for flushing. On the one hand, it allows for simultaneous flushing of double-lumen or triple-lumen deep vein catheters, facilitating use and simplifying operation. Furthermore, the connection between the three sets of handles 6 can be disassembled and reassembled as needed. On the other hand, compared to the traditional plug-in connection between the injection head 9 and the deep vein catheter, this structure uses a threaded connection via a threaded groove 10 for locking. This not only makes the connection tighter but also prevents the connector from being forced open due to high pushing pressure during injection flushing, making the connection more convenient and secure.

[0028] Please see Figure 2 The main housing 1 and the secondary housing 2 are vertically mounted with protruding plates 3 at the top and bottom center positions, and the protruding plates 3 are generally arc-shaped. The protruding plates 3 facilitate the aspiration and injection of physiological saline.

[0029] Please see Figure 1 Both the main housing 1 and the secondary housing 2 are provided with annular connecting plates 11 on the top and bottom sides, and bolts 12 are connected to the top and bottom of the annular connecting plates 11. The annular connecting plates 11 are connected to the main housing 1 and the secondary housing 2 by bolts 12, which facilitates disassembly and assembly operations.

[0030] Please see Figure 4 Both the main housing 1 and the sub-housing 2 have threaded holes 15 on their top and bottom sides, and the threaded holes 15 correspond to the positions of the bolts 12. The bolts 12 are inserted into the threaded holes 15 for threaded connection. There are three sets of annular connecting plates 11, and a side concave block 13 and a side protrusion 14 are respectively added to the center of the outer side of the annular connecting plate 11. The annular connecting plate 11 on the sub-housing 2 is connected to the side concave block 13 of the annular connecting plate 11 on the main housing 1 through the side protrusion 14. This not only ensures that the main housing 1 and the sub-housing 2 form a whole for simultaneous operation, but also facilitates the disassembly and assembly of the main housing 1 and the sub-housing 2. The side protrusion 14 and the side concave block 13 are T-shaped, and the positions of the side concave block 13 and the side protrusion 14 correspond. The side protrusion 14 is inserted into the side concave block 13 for connection, and the T-shaped design means that the side protrusion 14 and the side concave block 13 can only be separated and installed by plugging and unplugging.

[0031] This design features a main housing 1 and a secondary housing 2 each connected to a corresponding injection head 9. The end of the rotating plate 7 rotates into the recessed plate 8, connecting three sets of handles 6. In use, the three sets of injection heads 9 are connected to their corresponding connectors on the three-lumen deep vein catheter, and then the handles 6 are pushed to simultaneously inject saline solution into the catheter for flushing. An annular connecting plate 11 is connected to the main housing 1 and the secondary housing 2 via bolts 12, which are threaded into the threaded hole 15. The annular connecting plate 11 on the secondary housing 2 is connected to the annular connecting plate 11 on the main housing 1 via side protrusions 14 inserted into the side recesses 13 of the annular connecting plate 11.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pre-filled catheter flushing device, characterized in that, include: The main housing (1) and the secondary housing (2) are provided on both sides of the main housing (1). The inner cavities of the main housing (1) and the secondary housing (2) are provided with core rods (4), and pistons (5) and handles (6) are provided at the ends of the core rods (4). The injection head (9) is located at the ends of the main housing (1) and the secondary housing (2), and the surface of the injection head (9) is provided with a threaded groove (10). The convex rotating plate (7) and the concave fixed plate (8) are set on the side of the handle (6), and the convex rotating plate (7) is rotatably connected to the corresponding handle (6), while the concave fixed plate (8) is fixedly connected to the corresponding handle (6).

2. The pre-filled catheter flushing device according to claim 1, characterized in that: The main housing (1) and the sub-housing (2) are vertically mounted with protruding plates (3) at the top and bottom center positions, and the protruding plates (3) are arc-shaped as a whole.

3. A pre-filled catheter flushing device according to claim 1, characterized in that: Both the top and bottom sides of the main housing (1) and the sub-housing (2) are provided with annular connecting plates (11), and the top and bottom of the annular connecting plates (11) are connected with bolts (12).

4. A pre-filled catheter flushing device according to claim 3, characterized in that: The main housing (1) and the secondary housing (2) are provided with threaded holes (15) on the top and bottom sides, and the threaded holes (15) and the bolts (12) are in a corresponding positional relationship.

5. A pre-filled catheter flushing device according to claim 4, characterized in that: The annular connecting plate (11) consists of three sets, and a side concave block (13) and a side convex block (14) are respectively added to the outer center position of the annular connecting plate (11).

6. A pre-filled catheter flushing device according to claim 5, characterized in that: The side protrusion (14) and the side concave block (13) are designed in a "T" shape, and the side concave block (13) and the side protrusion (14) are in a corresponding positional relationship.

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