Visual catheter sheath combined part

Abstract

The utility model relates to the field of catheter sheath combination, and discloses a visible catheter sheath combined part which comprises a sheath body 1, an extension tube 2 fixedly connected with the left side of the sheath body 1, a sealing cover 3 in threaded connection with the left side of the extension tube 2, a sealing ring 4 arranged on the left side of the extension tube 2, and a plurality of quick connectors 5 fixedly connected with the right side of the sheath body 1. Pressing rods 7 are slidably connected to the far sides of the multiple quick connectors 5, pushing plates 8 are fixedly connected to the close sides of the multiple pressing rods 7, supporting rods 11 are rotatably connected to the far sides of the multiple pushing plates 8, springs 9 are arranged on the far sides of the multiple pushing plates 8, locking blocks 10 are rotatably connected to the far sides of the multiple supporting rods 11, and sheath rods 12 are slidably connected to the outer walls of the quick connectors 5. According to the combined part, the quick connector, the one-way valve, the spring, the push plate and other parts are used in cooperation, the adaptability of the combined part to different surgical puncture lengths can be effectively improved, purchase of extra standard instruments is reduced, and the use cost is saved.

Description

Technical Field

[0001] The utility model relates to the field of catheter sheath combinations, in particular to a visible catheter sheath combination component. Background Art

[0002] Visible catheter sheath components are important components in the field of medical devices, used to guide and protect catheters during medical operations to ensure smooth surgical procedures. These components are usually made of high-quality materials with excellent durability and biocompatibility to ensure patient safety and comfort.

[0003] In medical practice, the visualization catheter sheath combination components play a key role, helping medical staff to accurately guide the catheter to the required position and provide a clear view during surgery. These components are ingeniously designed to minimize operational risks and improve surgical efficiency.

[0004] However, the existing catheter sheath assembly components have different models from different manufacturers during use, and the overall flexibility is insufficient during use. It cannot be adjusted in time according to the specific content of the operation, and there are certain limitations. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a visible catheter sheath assembly component, aiming to improve the problem of poor flexibility in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a visual catheter sheath assembly component, including a sheath body, an extension tube fixedly connected to the left side of the sheath body, a sealing cover threadedly connected to the left side of the extension tube, a sealing ring arranged on the left side of the extension tube, a plurality of quick connectors fixedly connected to the right side of the sheath body, a plurality of pressure rods slidably connected to the far sides of the quick connectors, a plurality of push plates fixedly connected to the near sides of the pressure rods, a plurality of support rods rotatably connected to the far sides of the push plates, a spring arranged on the far sides of the plurality of support rods, a locking block rotatably connected to the far sides of the plurality of support rods, a sheath rod slidably connected to the outer wall of the quick connector, an observation assembly arranged on the outer wall of the sheath rod, a puncture rod fixedly connected to the right side of the sheath rod, an external tube arranged on the top of the outer wall of the sheath rod, a hemostatic valve arranged on the middle part of the outer wall of the external tube, a syringe slidably connected to the right side of the external tube, a penetrator arranged on the inner wall of the sheath body, and a one-way valve arranged on the right side of the sheath body.

[0007] As a further description of the above technical solution:

[0008] The observation assembly comprises an observation window, and the observation window is fixedly connected to the top of the outer wall of the sheath rod.

[0009] As a further description of the above technical solution:

[0010] The penetrator sequentially penetrates the extension tube, the sheath body, and the sheath rod and is slidably connected to the inner wall of the puncture rod.

[0011] As a further description of the above technical solution:

[0012] The sheath rod is slidably connected to the right side of the sheath body, and the inner wall of the sheath rod is provided with a cavity.

[0013] As a further description of the above technical solution:

[0014] The push plate is slidably connected to the inner wall of the quick connector.

[0015] As a further description of the above technical solution:

[0016] The bottom of the spring is arranged at the bottom of the inner wall of the quick connector.

[0017] As a further description of the above technical solution:

[0018] The locking block is slidably connected to the inner wall of the sheath rod.

[0019] As a further description of the above technical solution:

[0020] The locking block is slidably connected to the inner wall of the quick connector.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the present invention, by using the quick connector, one-way valve, spring, push plate and other components in coordination, the adaptability of the combined components to different surgical puncture lengths can be effectively improved, the purchase of additional standard instruments can be reduced, and the use cost can be saved.

[0023] 2. In the utility model, through the coordinated use of the observation window, sheath rod and other components, it is convenient for medical staff to observe the injection situation in real time during the operation, and to make timely adjustments. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional schematic diagram of a visible catheter sheath assembly component proposed by the utility model;

[0025] Figure 2 This is an exploded schematic diagram of a sheath structure of a visible catheter sheath assembly component proposed by the utility model;

[0026] Figure 3 The utility model is a schematic cross-sectional view of a quick connector structure of a visible catheter sheath assembly component.

[0027] Legend:

[0028] 1. Sheath; 2. Extension tube; 3. Sealing cap; 4. Sealing ring; 5. Quick connector; 6. One-way valve; 7. Pressure rod; 8. Push plate; 9. Spring; 10. Locking block; 11. Support rod; 12. Sheath rod; 13. Puncture rod; 14. External tube; 15. Hemostatic valve; 16. Syringe; 17. Observation window; 18. Penetrator. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0030] Reference Figure 1-Figure 3 The utility model provides an embodiment: a visual catheter sheath assembly component, including a sheath body 1, an extension tube 2 is fixedly connected to the left side of the sheath body 1, a sealing cover 3 is threadedly connected to the left side of the extension tube 2, a sealing ring 4 is arranged on the left side of the extension tube 2, a plurality of quick connectors 5 are fixedly connected to the right side of the sheath body 1, a plurality of quick connectors 5 are slidably connected to the far side of each of the plurality of quick connectors 5, a plurality of push plates 7 are fixedly connected to the near side of each of the plurality of push plates 7, a plurality of push plates 8 are rotatably connected to the far side of each of the plurality of support rods 11, a plurality of push plates 8 are provided with springs 9 on the far side, and a plurality of support rods 11 are arranged on the far side of each of the plurality of push plates 8. A locking block 10 is rotatably connected, and a sheath rod 12 is slidably connected to the outer wall of the quick connector 5. A sealing rubber layer is laid at the position where the sheath rod 12 is connected to the quick connector 5. After the locking is completed, the inner wall of the sheath rod 12 can be sealed. An observation component is provided on the outer wall of the sheath rod 12, and a puncture rod 13 is fixedly connected to the right side of the sheath rod 12. An external tube 14 is provided on the top of the outer wall of the sheath rod 12, and a hemostatic valve 15 is provided in the middle of the outer wall of the external tube 14. A syringe 16 is slidably connected to the right side of the external tube 14, a penetrator 18 is provided on the inner wall of the sheath body 1, and a one-way valve 6 is provided on the right side of the sheath body 1.

[0031] When the staff uses the present catheter sheath combination to perform surgery, the first step is to adjust the length of the puncture rod 13 according to specific needs. Subsequently, the required puncture rod 13 and sheath rod 12 are docked according to the multiple quick connectors 5 on the right side of the sheath body 1. Before docking, pressure must be applied to multiple pressure rods 7 simultaneously so that the pressure rods 7 are pressed down and exert an extrusion effect on the support rod 11. With the help of the lever principle, the locking blocks 10 on both sides will move toward the middle and compress the spring 9 to the limit state. After this stage is completed, the sheath rod 12 can smoothly slide into both sides of the quick connector 5. Once the position is determined and properly placed, the pressure rod 7 can be released. At this time, the reverse thrust of the spring 9 lifts the push plate 8, causing the locking blocks 10 on both sides to complete the locking with the sheath rod 12 as the support rod 11 moves.

[0032] During this process, the threaded connection between the sealing cover 3 and the extension tube 2 can be untied, and the penetrator 18 can be removed to pass through the sheath rod 12 and the sheath body 1. If the penetrator 18 is not needed during the operation, the hemostatic valve 15 is opened, the sheath rod 12 is slidably connected to the right side of the sheath body 1, and the inner wall of the sheath rod 12 is provided with a cavity. The sealing cover 3 is closed, and the drug is injected from the external tube 14 into the puncture rod 13 through the syringe 16, thereby completing the drug injection. It is worth noting that the use of the one-way valve 6 can ensure that the sealing environment inside the sheath rod 12 is not affected.

[0033] The penetrator 18 sequentially penetrates the extension tube 2 , the sheath body 1 , and the sheath rod 12 and is slidably connected to the inner wall of the puncture rod 13 .

[0034] The push plate 8 is slidably connected to the inner wall of the quick connector 5. Through such a design, the displacement position of the push plate 8 is fully limited.

[0035] The bottom of the spring 9 is arranged at the bottom of the inner wall of the quick connector 5, and the positions of both sides of the spring 9 are evenly limited so that it can stably push the push plate 8 to move.

[0036] The locking block 10 is slidably connected to the inner wall of the sheath rod 12, and the locking block 10 is slidably connected to the inner wall of the quick connector 5. Through such a design, it can be ensured that the locking blocks 10 on both sides can be squeezed to move during the process of the spring 9 restoring and pushing the push plate 8, so that the sheath rod 12 can be locked at the positions on both sides of multiple quick connectors 5.

[0037] The observation assembly includes an observation window 17, which is fixedly connected to the top of the outer wall of the sheath rod 12. During the operation, the internal environment of the sheath rod 12 and the flow direction of the injection liquid can be observed through the transparent observation window 17, so as to facilitate timely adjustment and processing.

[0038] Working principle: When the staff uses the catheter sheath combination component for surgery, they first adjust the length of the puncture rod 13 used according to the needs, and then dock the required puncture rod 13 and sheath rod 12 according to the multiple quick connectors 5 on the right side of the sheath body 1. Before docking, it is necessary to press multiple pressure rods 7 simultaneously, so that the pressure rod 7 presses down to squeeze the support rod 11, and through the lever principle, the locking blocks 10 on both sides are moved closer to the similar side, and the compression spring 9 is in the minimum state. At this time, the sheath rod 12 can smoothly slide into the two sides of the multiple quick connectors 5. After the position is determined and placed, the pressure rod 7 can be loosened, and the push plate 8 can be lifted up by the spring 9, so that the locking blocks 10 on both sides follow the position of the support rod 11 and complete the locking with the sheath rod 12.

[0039] After the installation is completed, the blood vessel puncture operation can be performed. During this process, the threaded connection between the sealing cover 3 and the extension tube 2 can be opened. After removal, the penetrator 18 can be passed through the sheath rod 12 and the sheath body 1, or when the penetrator 18 is not needed, the hemostatic valve 15 is opened, the sealing cover 3 is closed, and the syringe 16 enters the puncture rod 13 from the external tube 14, thereby completing the drug injection. During the injection process, the use of the one-way valve 6 can prevent the internal sealing environment of the sheath rod 12 from being affected.

[0040] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A visualization catheter sheath assembly, comprising a sheath body (1), characterized in that: The left side of the sheath body (1) is fixedly connected to an extension tube (2), the left side of the extension tube (2) is threadedly connected to a sealing cover (3), the left side of the extension tube (2) is provided with a sealing ring (4), the right side of the sheath body (1) is fixedly connected to a plurality of quick connectors (5), the far sides of the plurality of quick connectors (5) are slidably connected to a pressure rod (7), the near sides of the plurality of pressure rods (7) are fixedly connected to a push plate (8), the far sides of the plurality of push plates (8) are rotatably connected to a support rod (11), the far sides of the plurality of push plates (8) are provided with a spring (9), and the plurality of support rods (11) are fixedly connected to the extension tube (2) on the left side of the extension tube (2). The outer wall of the quick connector (5) is slidably connected to a sheath rod (12), the outer wall of the sheath rod (12) is provided with an observation assembly, the right side of the sheath rod (12) is fixedly connected to a puncture rod (13), the top of the outer wall of the sheath rod (12) is provided with an external pipe (14), the middle part of the outer wall of the external pipe (14) is provided with a hemostatic valve (15), the right side of the external pipe (14) is slidably connected to a syringe (16), the inner wall of the sheath body (1) is provided with a penetrator (18), and the right side of the sheath body (1) is provided with a one-way valve (6).

2. A visualization catheter sheath assembly according to claim 1, characterized in that: The observation assembly comprises an observation window (17), and the observation window (17) is fixedly connected to the top of the outer wall of the sheath rod (12).

3. A visualization catheter sheath assembly according to claim 1, characterized in that: The penetrator (18) sequentially penetrates the extension tube (2), the sheath body (1), and the sheath rod (12) and is slidably connected to the inner wall of the puncture rod (13).

4. A visualization catheter sheath assembly according to claim 1, characterized in that: The sheath rod (12) is slidably connected to the right side of the sheath body (1), and a cavity is provided on the inner wall of the sheath rod (12).

5. The visualization catheter sheath assembly according to claim 1, characterized in that: The push plate (8) is slidably connected to the inner wall of the quick connector (5).

6. A visualization catheter sheath assembly according to claim 1, characterized in that: The bottom of the spring (9) is arranged at the bottom of the inner wall of the quick connector (5).

7. The visualization catheter sheath assembly according to claim 1, characterized in that: The locking block (10) is slidably connected to the inner wall of the sheath rod (12).

8. The visualization catheter sheath assembly according to claim 1, characterized in that: The locking block (10) is slidably connected to the inner wall of the quick connector (5).

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