Y valve

Abstract

The utility model discloses a Y valve which comprises a main pipe, the main pipe is connected with a branch pipe and a suction pipe, the top ends of the main pipe and the branch pipe are detachably connected with locking valves, the side wall of the main pipe is provided with a first notch, the side wall of the branch pipe is provided with a second notch, and the top ends of the first notch and the second notch are open. The bottom end of the first notch communicates with the bottom end of the second notch, a first blocking plate is slidably arranged in the main pipe and can close or open the first notch, and a second blocking plate is slidably arranged in the branch pipe and can close or open the second notch. In the using process of the structure, complete vacuum negative pressure suction can be achieved, and the operation effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a Y valve. Background Technology

[0002] In stent thrombectomy, a Y-valve is required. The current structure of the Y-valve includes a main tube and a branch tube. A locking valve is fixedly connected to the main tube. The locking valve includes a hemostatic valve and a fixation valve. The thrombectomy stent guidewire or microguidewire can pass through the locking valve and be fixed.

[0003] In conventional stent thrombectomy, negative pressure aspiration is required, and a combination of suction and retraction is necessary to achieve optimal thrombectomy results. Before applying negative pressure aspiration, the locking valve must be tightened to prevent outside air from entering the aspiration tubing, thus maintaining continuous negative pressure while allowing the stent guidewire to be pulled out from the locking valve. Since stent thrombectomy is not always successful on the first attempt, a second or third stent placement may be necessary. Because stent thrombectomy can affect local blood vessels, making it difficult for the microguidewire to pass through again, preserving the microguidewire in the true lumen of the blood vessel during stent thrombectomy becomes crucial. When both the stent guidewire and microguidewire pass through a single locking valve, a gap can form between the two guidewires and stents. Even with the locking valve tightened, this reduces the effectiveness of negative pressure aspiration and increases the risk of air embolism, as outside air can enter the aspiration tubing through this gap during aspiration. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a Y-valve. This structure enables complete vacuum negative pressure suction during use, thereby improving surgical outcomes.

[0005] A Y-valve includes a main pipe, a branch pipe and a suction pipe connected to the main pipe, and locking valves detachably connected to the top ends of both the main pipe and the branch pipe. The main pipe has a first notch on its side wall, and the branch pipe has a second notch on its side wall. The top ends of the first and second notches are open, and the bottom ends of the first and second notches are connected. A first sealing plate is slidably disposed inside the main pipe, which can close or open the first notch. A second sealing plate is slidably disposed inside the branch pipe, which can close or open the second notch.

[0006] Preferably, when the first sealing plate closes the first gap and the second sealing plate closes the second gap, the bottom end of the second sealing plate contacts the outer wall of the first sealing plate.

[0007] Preferably, the inner wall of the main pipe is provided with a first sliding groove, and a first slider is connected to the first sealing plate, the first slider being slidably connected to the first sliding groove.

[0008] Preferably, the outer wall of the first sealing plate is connected to the first actuating post.

[0009] Preferably, the inner wall of the branch pipe is provided with a second sliding groove, and a second slider is connected to the second sealing plate, the second slider being slidably connected to the second sliding groove.

[0010] Preferably, a second actuating post is connected to the outer wall of the second sealing plate.

[0011] Preferably, the locking valve on the main pipe is threaded to the top of the main pipe.

[0012] Preferably, the locking valve on the branch pipe is threaded to the top end of the branch pipe.

[0013] The beneficial effects of this invention are as follows: In this technical solution, a branch tube and a suction tube are connected to the main tube. Locking valves are detachably connected to the top ends of both the main tube and the branch tube. A first notch and a second notch are respectively provided on the main tube and the branch tube. A first sealing plate and a second sealing plate, capable of closing or opening the first and second notches, are respectively installed on the main tube and the branch tube. During negative pressure suction, the microguidewire and the stent guidewire are fixed by a locking valve, eliminating gaps after fixing and enabling complete negative pressure suction, thus improving surgical outcomes. Attached Figure Description

[0014] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of a Y-valve in the prior art;

[0017] Figure 3 for Figure 1 A magnified structural diagram of position A in the middle;

[0018] Figure 4 for Figure 1 A magnified structural diagram of position B in the middle.

[0019] In the attached diagram, 1-main pipe, 2-branch pipe, 3-locking valve, 4-suction pipe, 5-first notch, 6-second notch, 7-first sealing plate, 8-second sealing plate, 9-first actuating column, 10-second actuating column. Detailed Implementation

[0020] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0021] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0022] Example 1

[0023] like Figure 1 As shown, this embodiment provides a Y-valve, including a main pipe 1, a branch pipe 2 and a suction pipe 4 connected to the main pipe 1, and a locking valve 3 detachably connected to the top of both the main pipe 1 and the branch pipe 2. The side wall of the main pipe 1 has a first notch 5, and the side wall of the branch pipe 2 has a second notch 6. The tops of the first notch 5 and the second notch 6 are open, and the bottoms of the first notch 5 and the second notch 6 are connected. A first sealing plate 7 is slidably disposed inside the main pipe 1, which can close or open the first notch 5. A second sealing plate 8 is slidably disposed inside the branch pipe 2, which can close or open the second notch 6.

[0024] like Figure 2 As shown, a Y-valve is required during stent thrombectomy. The current structure of the Y-valve includes a main tube 1 and a branch tube 2. A locking valve 3 is connected to the main tube 1. The locking valve 3 includes a hemostatic valve and a fixation valve. The stent guidewire or microguidewire can pass through the locking valve and be fixed. The locking valve 3 is designed to completely lock and seal after one of the stent guidewires or microguidewires passes through it. However, when both stent guidewires and microguidewires pass through simultaneously, a gap will remain after locking.

[0025] During stent thrombectomy, both the microguidewire and the stent wire need to be passed through the locking valve simultaneously, while the aspiration device is connected to branch 2 for negative pressure aspiration. Because the microguidewire and stent wire pass through the locking valve at the same time, leakage can occur. During aspiration, air can enter branch 2 from the locking valve, preventing the achievement of complete vacuum aspiration and resulting in poor surgical outcomes.

[0026] In this embodiment, a branch pipe 2 and a suction pipe 4 are connected to the main pipe 1. A locking valve 3 is detachably connected to the top of the main pipe 1 and the branch pipe 2. A first notch 5 and a second notch 6 are respectively opened on the main pipe 1 and the branch pipe 2. A first sealing plate 7 and a second sealing plate 8 that can close or open the first notch 5 and the second notch 6 are respectively provided on the main pipe 1 and the branch pipe 2. In practical use, during the introduction of microcatheters and stents, both the microguidewire and stent guidewire are passed through the locking valve 3 on the main tube 1. After the introduction is completed, when performing negative pressure aspiration, the locking valves 3 on both the main tube 1 and the branch tube 2 are removed, and the first notch 5 and the second notch 6 are opened. Then, the microguidewire is moved through the first notch 5 and the second notch 6 into the branch tube 2. The first notch 5 and the second notch 6 are then closed, and the locking valves 3 on the main tube 1 and the branch tube 2 are installed respectively. The microguidewire and stent guidewire are passed through the two locking valves 3 respectively and fixed. The aspiration device is connected to the aspiration tube 4 for negative pressure aspiration. In this way, the microguidewire and stent guidewire are fixed by one locking valve 3 respectively. After fixing, there will be no gap. During negative pressure aspiration, gas will not enter through the locking valve, which can achieve complete negative pressure aspiration and improve the surgical effect.

[0027] In this technical solution, the stent guidewire and micro guidewire are controlled by different locking valves, which will not cause the risk of air embolism.

[0028] In this embodiment, when the first sealing plate 7 closes the first gap 5 and the second sealing plate 8 closes the second gap 6, the bottom end of the second sealing plate 8 contacts the outer wall of the first sealing plate 7. This achieves complete closure of the first gap 5 and the second gap 6.

[0029] In this embodiment, the inner wall of the main pipe 1 is provided with a first sliding groove, and a first slider is connected to the first sealing plate 7. The first slider is slidably connected to the first sliding groove. In this embodiment, the sliding connection of the first sealing plate 7 is achieved through the cooperation of the first sliding groove and the first slider. In actual use, there is friction between the first sliding groove and the first slider, and a certain external force is required to drive the first slider to move.

[0030] In this embodiment, the outer wall of the first sealing plate 7 is connected to the first actuating post 9. The first actuating post 9 is provided in this embodiment to facilitate the movement of the first sealing plate 7, thereby opening or closing the first notch 5.

[0031] In this embodiment, the inner wall of the branch pipe 2 is provided with a second sliding groove, and a second slider is connected to the second sealing plate 8. The second slider is slidably connected to the second sliding groove. In this embodiment, the sliding connection of the second sealing plate 8 is achieved through the cooperation of the second sliding groove and the second slider. In actual use, there is friction between the second sliding groove and the second slider, and a certain external force is required to drive the second slider to move.

[0032] In this embodiment, a second actuating post 10 is connected to the outer wall of the second sealing plate 8. The second actuating post 10 is provided in this embodiment to facilitate the movement of the second sealing plate 8, thereby opening or closing the second notch 6.

[0033] In this embodiment, the locking valve 3 on the main pipe 1 is threadedly connected to the top of the main pipe 1. In this embodiment, the locking valve 3 is detachably connected to the main pipe 1 through a threaded connection.

[0034] In this embodiment, the locking valve 3 on the branch pipe 2 is threadedly connected to the top end of the branch pipe 2. In this embodiment, the locking valve 3 is detachably connected to the branch pipe 2 through a threaded connection.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A Y valve characterized by, The utility model provides a kind of pipe, including main pipe (1), the branch pipe (2) and suction pipe (4) are connected on the main pipe (1), the main pipe (1) and branch pipe (2) top end are detachably connected with locking valve (3), the side wall of the main pipe (1) is opened with first notch (5), the side wall of the branch pipe (2) is opened with second notch (6), the top end of first notch (5) and second notch (6) is open, and the bottom of first notch (5) and second notch (6) is communicated, first baffle (7) is slidably arranged in the main pipe (1), first baffle (7) can close or open first notch (5), second baffle (8) is slidably arranged in the branch pipe (2), and second baffle (8) can close or open second notch (6).

2. A Y valve according to claim 1, wherein When first baffle (7) closes first notch (5), and second baffle (8) closes second notch (6), the bottom of second baffle (8) is in contact with the outer wall of first baffle (7).

3. A Y valve according to claim 1, wherein The inner wall of the main pipe (1) is provided with a first sliding groove, and the first baffle (7) is connected with a first sliding block, and the first sliding block is slidably connected with the first sliding groove.

4. A Y valve according to claim 3, wherein The outer wall of the first baffle (7) is connected with a first pulling column (9).

5. A Y valve according to claim 1, wherein The inner wall of the branch pipe (2) is provided with a second sliding groove, and the second baffle (8) is connected with a second sliding block, and the second sliding block is slidably connected with the second sliding groove.

6. A Y valve according to claim 5, wherein The outer wall of the second baffle (8) is connected with a second pulling column (10).

7. A Y valve according to claim 1, wherein The locking valve (3) on the main pipe (1) is threadedly connected with the top end of the main pipe (1).

8. A Y valve according to claim 1, wherein, The locking valve (3) on the branch pipe (2) is threadedly connected with the top end of the branch pipe (2).

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