Injection structure with switching valve for hemostasis in blood vessel

Abstract

The injection structure comprises an injection end valve body, a press-in type valve element, a side injection end and a pipeline butt joint end, the press-in type valve element is installed in the injection end valve body in an up-and-down moving mode, the side injection end is arranged on the left side of the lower end of the injection end valve body, and the pipeline butt joint end is arranged on the left side of the lower end of the injection end valve body. The right side of the lower end of the injection end valve body is provided with a pipeline butt joint end, the pipeline butt joint end is provided with a stretching-in type pipeline, the press-in type valve element comprises a pressing head, a valve element body and an injection butt joint head, and the valve element body extending downwards is arranged on the lower end face of the pressing head. Two injection butt joints are arranged on the right side of the lower end of the valve element body side by side up and down. The utility model has the characteristics that the operation structure is simplified, the operation difficulty is reduced, the working intensity of nursing personnel is reduced, and the operation risk is reduced.

Description

Technical Field

[0001] This utility model relates to the field of vascular hemostasis technology, and in particular to an injection structure for endovascular hemostasis with a switching valve. Background Technology

[0002] When performing endovascular closure of bleeding esophageal and gastric varices, intravascular injection is required to stop the bleeding. Due to the severity and urgency of the condition, and the characteristics of the medication, this procedure typically requires two nurses: nurse A for the injection and nurse B for aspiration. First, nurse B gives the aspirated medication to nurse A for the first injection. The injected medication is polidocanol, which acts as a sclerosing agent. After a portion of the medication is injected, nurse A removes the first syringe, and nurse B aspirates a second medication and gives it to nurse A for the second injection. The second injection is a tissue-specific medication. After the second injection, the second syringe is removed again, and the syringe used for the first injection is inserted into the injection site to complete the entire injection. This procedure is overly complex and requires multiple personnel. To address these issues, the injection structure needs improvement. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide an injection structure for intravascular hemostasis with a switching valve, which has the characteristics of simplifying the operation structure, reducing the difficulty of operation, reducing the workload of nursing staff, and reducing surgical risks.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: An injection structure for intravascular hemostasis with a switching valve is provided, including an injection end valve body, a push-in valve core, a side injection end, and a pipe docking end. The push-in valve core is installed vertically within the injection end valve body. A side injection end is provided on the lower left side of the injection end valve body, and a pipe docking end is provided on the lower right side of the injection end valve body. An insertable pipe is provided on the pipe docking end. The push-in valve core includes a pressing head, a valve core body, and an injection connector. A downwardly extending valve core body is provided on the lower end face of the pressing head. Two injection connectors are arranged side-by-side vertically on the lower right side of the valve core body. A first injection channel is provided inside the lower end of the valve core body, connecting the side injection end and the lower injection connector. A second injection channel is provided between the middle of the upper end face of the push-in valve core and the upper injection connector.

[0005] This technical solution enables the device to switch between different types of syringes by setting an injection end valve body and a push-in valve core. Simultaneously, by setting a side injection end and a push-in valve core, two injection structures are provided, allowing two syringes to be inserted into the injection structure simultaneously, avoiding repeated insertion and removal of the syringes and thus preventing blood backflow, simplifying the operation. Furthermore, by setting a first injection channel and a second injection channel, the two medications can be injected separately into the insertion tube. An injection connector is provided for easy connection with the insertion tube.

[0006] As a supplement to this technical solution, the injection end valve body is provided with a valve core movement cavity inside. The lower right side wall of the valve core movement cavity is provided with three mating grooves that match the ends of the injection connector. The mating groove in the middle position is provided with a pipeline passage that connects to the pipeline docking end.

[0007] In this technical solution, a mating groove is provided to facilitate the positioning of the injection connector. At the same time, a rubber structure is used on the end of the injection connector, which allows the end to deform and enter into the mating groove, so that the rubber structure can deform and seal.

[0008] As a supplement to this technical solution, a vertical guide protrusion is installed on the left side of the valve core body, and a guide groove matching the vertical guide protrusion is provided on the left side of the injection end valve body. The vertical guide protrusion is provided to facilitate the up and down movement of the valve core body.

[0009] As a supplement to this technical solution, a second injection rubber is embedded in the middle of the upper end of the push-in valve core, and a first injection rubber is embedded in the middle of the side injection end. The second injection rubber and the first injection rubber are used as the insertion part of the syringe.

[0010] As a supplement to this technical solution, a limiting protrusion is provided at the lower end of the injection valve body. In this technical solution, the limiting protrusion is provided to facilitate the handholding of medical staff.

[0011] As a supplement to this technical solution, the lower end of the push-in valve core is provided with a positioning protrusion, the lower end of the injection valve body is provided with a positioning valve body, and the positioning valve body is provided with a positioning chamber that matches the positioning protrusion. The positioning protrusion is provided to facilitate positioning, making the push-in valve core operate more stably.

[0012] As a supplement to this technical solution, a positioning groove is provided on the side wall of the positioning chamber, and a rubber limiting ring is fitted on the outer ring of the lower end of the positioning protrusion. The positioning groove facilitates the engagement of the rubber limiting ring.

[0013] Beneficial effects: This utility model relates to an injection structure for intravascular hemostasis with a switching valve. By setting an injection end valve body and a push-in valve core, the device can be switched. Simultaneously, by setting a side injection end and a push-in valve core, two injection structures are provided, allowing two syringes to be inserted into the injection structure simultaneously, avoiding repeated insertion and removal of the syringes and thus preventing blood backflow, simplifying the operation method. Furthermore, by setting a first injection channel and a second injection channel, it is ensured that the two medications can be injected into the insertion tube separately. An injection connector is provided for convenient connection with the insertion tube. It has the advantages of simplified operation structure, reduced operational difficulty, reduced workload for nursing staff, and reduced surgical risks. Attached Figure Description

[0014] Figure 1 This is the front view of this utility model;

[0015] Figure 2 This is a top view of the present invention;

[0016] Figure 3 This is a utility model Figure 1 A full sectional view of the structure in view;

[0017] Figure 4 This is a front view of the push-in valve core described in this utility model;

[0018] Figure 5 This is a bottom view of the push-in valve core described in this utility model.

[0019] Illustration: 1. Injection end valve body, 2. Push-in valve core, 3. Side injection end, 4. Positioning valve body, 5. Pipe connection end, 6. Limiting protrusion, 7. Insertion pipe, 8. Press head, 9. Vertical guide protrusion, 10. Valve core body, 11. Injection connector, 12. Positioning protrusion, 13. Rubber limiting ring, 14. Input channel, 15. Positioning chamber, 16. Positioning groove, 17. Valve core moving cavity, 18. Connection groove, 19. Second injection channel, 20. First injection channel, 21. Second injection rubber, 22. First injection rubber. Detailed Implementation

[0020] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0021] The present invention relates to an injection structure for intravascular hemostasis with a switching valve, such as... Figure 1As shown in Figure 5, the device includes an injection valve body 1, a push-in valve core 2, a side injection end 3, and a pipe docking end 5. The push-in valve core 2 is installed vertically within the injection valve body 1. The side injection end 3 is located on the lower left side of the injection valve body 1, and the pipe docking end 5 is located on the lower right side of the injection valve body 1. An extension pipe 7 is provided on the pipe docking end 5. The push-in valve core 2 includes a pressing head 8, a valve core body 10, and an injection connector 11. The valve core body 10 extends downward on the lower end face of the pressing head 8. Two injection connectors 11 are arranged side by side on the lower right side of the valve core body 10. A first injection channel 20 is provided inside the lower end of the valve core body 10, which connects the side injection end 3 and the lower injection connector 11. A second injection channel 19 is provided between the middle of the upper end face of the push-in valve core 2 and the upper injection connector 11.

[0022] In this technical solution, the device can be switched by setting an injection end valve body 1 and a push-in valve core 2. At the same time, by setting a side injection end 3 and a push-in valve core 2, two injection structures are set up, so that two syringes can be inserted into the injection structure simultaneously, avoiding repeated insertion and removal of the syringes, thereby avoiding blood backflow and simplifying the operation method. In addition, by setting a first injection channel 20 and a second injection channel 19, it is ensured that the two kinds of drugs can be injected into the extension tube 7 respectively. An injection connector 11 is set up to facilitate docking with the extension tube 7.

[0023] As a supplement to this technical solution, the injection end valve body 1 is provided with a valve core movement cavity 17 inside. The lower right side wall of the valve core movement cavity 17 is provided with three mating grooves 18 that match the ends of the injection connector 11. The mating groove 18 located in the middle position is provided with a pipeline passage that communicates with the pipeline docking end 5.

[0024] In this technical solution, a mating groove 18 is provided to facilitate the positioning of the injection connector 11. At the same time, a rubber structure is used on the end of the injection connector 11 so that the end can deform and enter into the mating groove 18, allowing the rubber structure to deform and seal.

[0025] As a supplement to this technical solution, a vertical guide protrusion 9 is installed on the left side of the valve core body 10, and a guide groove matching the vertical guide protrusion 9 is provided on the left side of the inside of the injection end valve body 1. The vertical guide protrusion 9 is provided to facilitate the up and down movement of the valve core body 10.

[0026] As a supplement to this technical solution, a second injection rubber 21 is embedded in the middle of the upper end of the push-in valve core 2, and a first injection rubber 22 is embedded in the middle of the side injection end 3. The second injection rubber 21 and the first injection rubber 22 are used as the insertion part of the syringe.

[0027] As a supplement to this technical solution, a limiting protrusion 6 is provided at the lower end of the injection valve body 1. In this technical solution, the limiting protrusion 6 is provided to facilitate the handholding of medical staff.

[0028] As a supplement to this technical solution, the lower end of the push-in valve core 2 is provided with a positioning protrusion 12, and the lower end of the injection valve body 1 is provided with a positioning valve body 4. The positioning valve body 4 is provided with a positioning chamber 15 that matches the positioning protrusion 12. The positioning protrusion 12 is provided to facilitate positioning, making the push-in valve core 2 operate more stably.

[0029] As a supplement to this technical solution, a positioning groove 16 is provided on the side wall of the positioning chamber 15, and a rubber limiting ring 13 is sleeved on the lower outer ring of the positioning protrusion 12. The positioning groove 16 facilitates the engagement of the rubber limiting ring 13.

[0030] Example

[0031] When using this structure, a pre-injection is performed before inserting the insertion tube 7. Polidocanol injection solution is pre-filled into the insertion tube 7. Two syringes are prepared in advance, each containing one of the two medications. The first syringe contains 10 ml of polidocanol injection solution, and the second syringe contains 0.5 ml of tissue glue and 3 ml of air. Next, the injection is performed. First, the insertion tube 7 is inserted into the patient's vein. After this, the push-button valve core 2 is in its highest position, at which point the first injection channel 20 and the input channel 14 within the insertion tube 7 are connected. Then, the first syringe is inserted into the side injection end 3, and then the first syringe is pushed to inject 4… After injecting 6 ml of medication, without removing the first syringe, simply insert the second syringe into the second injection rubber 21, ensuring the second syringe is vertical so that air is above the tissue adhesive. Then, press down the push-button valve 2 to connect the second injection channel 19 and the input channel 14. Next, push the second syringe to inject the medication completely into the patient's lesion. After completing the second injection, pull up the push-button valve 2 again to reconnect the first injection channel 20 and the input channel 14 in the insertion tube 7. Finally, complete the third injection, injecting the remaining medication from the first syringe into the patient's lesion. After completing this, the doctor can remove the insertion tube 7 after stopping the bleeding.

[0032] The above provides a detailed description of an intravascular hemostasis injection structure with a switching valve provided in this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An injection structure for intravascular hemostasis with a switching valve, characterized in that: The device includes an injection valve body (1), a push-in valve core (2), a side injection end (3), and a pipe connection end (5). The push-in valve core (2) is installed vertically within the injection valve body (1). The side injection end (3) is located on the lower left side of the injection valve body (1), and the pipe connection end (5) is located on the lower right side of the injection valve body (1). An insertion pipe (7) is provided on the pipe connection end (5). The push-in valve core (2) includes a pressing head (8), a valve core body (10), and an injection connector (…). 11) A valve core body (10) extending downward is provided on the lower end face of the pressing head (8). Two injection connectors (11) are arranged side by side on the lower right side of the valve core body (10). A first injection channel (20) is provided inside the lower end of the valve core body (10). The first injection channel (20) connects the side injection end (3) and the injection connector (11) located at the lower part. A second injection channel (19) is provided between the middle of the upper end face of the push-in valve core (2) and the injection connector (11) located at the upper part.

2. The injection structure for intravascular hemostasis with a switching valve according to claim 1, characterized in that: The injection end valve body (1) is provided with a valve core movement cavity (17) inside. The lower right side wall of the valve core movement cavity (17) is provided with three mating grooves (18) that match the end of the injection connector (11). The mating groove (18) in the middle position is provided with a pipeline passage that communicates with the pipeline docking end (5).

3. The injection structure for intravascular hemostasis with a switching valve according to claim 1, characterized in that: The valve core body (10) is provided with a vertical guide protrusion (9) on the left side, and the injection end valve body (1) is provided with a guide groove matching the vertical guide protrusion (9) on the left side inside.

4. The injection structure for intravascular hemostasis with a switching valve according to claim 1, characterized in that: The upper middle part of the push-in valve core (2) is fitted with a second injection rubber (21), and the middle part of the side injection end (3) is fitted with a first injection rubber (22).

5. The injection structure for intravascular hemostasis with a switching valve according to claim 1, characterized in that: The lower end of the injection valve body (1) is provided with a limiting protrusion (6).

6. The injection structure for intravascular hemostasis with a switching valve according to claim 1, characterized in that: The lower end of the push-in valve core (2) is provided with a positioning protrusion (12), and the lower end of the injection valve body (1) is provided with a positioning valve body (4). The positioning valve body (4) is provided with a positioning chamber (15) that matches the positioning protrusion (12).

7. An injection structure for intravascular hemostasis with a switching valve according to claim 6, characterized in that: A positioning groove (16) is provided on the side wall of the positioning chamber (15), and a rubber limiting ring (13) is sleeved on the lower outer ring of the positioning protrusion (12).

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