Liquid stopping device of infusion apparatus

Abstract

The utility model discloses a liquid stopping device of an infusion apparatus, and relates to the technical field of parts of medical instruments, the device comprises a liquid stopping plate, an infusion tube is arranged in the liquid stopping plate in a matched mode, the infusion tube is arranged in a liquid stopping block in a matched mode, the liquid stopping block comprises a sliding platform, a first pressing block is fixedly connected to the sliding platform, and a second pressing block is fixedly connected to the sliding platform. A guide rod mounting hole is formed in the back face of the first pressing block, and a second pressing block is further arranged on the sliding platform in a matched mode. According to the liquid stopping device, the liquid stopping block is arranged, the wedge-shaped inclined faces in the second pressing block and the pull rod are matched with each other to achieve left-right sliding of the liquid stopping block, then the first pressing block is driven to press or loosen an infusion tube, in addition, the spring guide rod is arranged on the pull rod in a matched mode, and the spring guide rod is matched with the spring groove. And the pull rod is more stable during rebounding and resetting.

Description

Technical Field

[0001] This utility model relates to the field of medical device components technology, specifically an infusion set stop device. Background Technology

[0002] Infusion set stop clamps are commonly used accessories in medical infusion processes. They are mainly used to control the infusion flow rate and prevent air from entering the vein. During infusion, the stop clamp is used to clamp the infusion tubing, and the flow of fluid in the tubing can be controlled by opening or closing it. However, existing stop clamps all use a clamping plate structure with a locking slot, using a spring on one side to press the infusion tubing to control the flow of fluid. This is inconvenient for manual operation during assembly, resulting in low assembly efficiency. Furthermore, medical personnel need to manually pull the pressure block on the spring side when unlocking, which is very inconvenient.

[0003] The patent publication number CN217067268U describes an infusion set stop clamp. The device is equipped with an elastic lever arm, a slot, a movable clamping surface, and a passive clamping surface. The movable clamping surface is close to the passive clamping surface by the latches on both sides of the elastic lever arm engaging with the corresponding slots to clamp the infusion tube. During the unlocking operation, pressing the two unlocking pins pushes the two latches back into the corresponding lever arm insertion holes. At this time, the movable clamping surface moves away from the passive clamping surface to release the infusion tube.

[0004] However, this device has shortcomings in use. It mainly uses the cooperation of the latches and slots on both sides of the elastic arm to lock and unlock. Every time the infusion bottle is changed, the unlocking pin needs to be pressed frequently to hold the latch, which causes the latch on the elastic arm to be subjected to frequent force. Since the internal space of the liquid-stopping device is limited, the latch is made relatively thin, which further reduces the life of the elastic component. Repeated pressing makes the latch easy to be damaged.

[0005] Based on this, an infusion set stopping device is provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0006] The purpose of this invention is to provide an infusion set stop-fluid device to solve the problems in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An infusion set stop device includes a stop plate, an infusion tube fitted in the stop plate, the infusion tube fitted in a stop block, the stop block including a sliding platform, a first pressure block fixedly connected to the sliding platform, a guide rod mounting hole opened on the back of the first pressure block, and a second pressure block fitted in the sliding platform.

[0009] Preferably, the liquid stop plate includes a liquid stop plate body, in which a through infusion groove is formed, and a pull rod groove is provided next to the infusion groove. A spring groove is also provided behind the pull rod groove. A liquid stop block groove is provided laterally in the inner wall of the liquid stop plate body, and a guide rod is fixedly connected to the inner wall of the liquid stop block groove. A plurality of fixing holes are also distributed in the liquid stop plate body.

[0010] Preferably, a matching liquid stop plate is also provided on the outer side of the liquid stop plate, and the matching liquid stop plate is fixedly connected to the liquid stop plate by bolts.

[0011] Preferably, a pull rod is also provided in the pull rod groove. The pull rod includes a pull rod body, a wedge-shaped inclined surface at the bottom of the pull rod body, a pull ring at the top of the pull rod body, and two spring guide rods are fixedly connected below the pull ring. A first spring is sleeved on the spring guide rod.

[0012] Preferably, the first spring is a tension spring, and the shape of the wedge-shaped inclined surface matches the second pressure block.

[0013] Preferably, the depth of the spring groove should satisfy the condition that the spring guide rod remains in the spring groove when the first spring is stretched to its limit length.

[0014] Preferably, a second spring is fitted into the inner wall of the guide rod mounting hole, and the second spring is a compression spring.

[0015] Preferably, the liquid-stopping block is integrally formed.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. This utility model uses a stop-flow block and the wedge-shaped inclined surface in the second pressure block and the pull rod to make the stop-flow block slide left and right, thereby driving the first pressure block to press or loosen the infusion tube.

[0018] 2. This utility model makes the pull rod more stable when it rebounds and resets by setting a spring guide rod on the pull rod and utilizing the cooperation between the spring guide rod and the spring groove. Attached Figure Description

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

[0020] Figure 2 This is a schematic diagram of the structure of the liquid stop plate of this utility model.

[0021] Figure 3 This is a schematic diagram showing the combination of the infusion tube and the liquid-stopping device in this utility model.

[0022] Figure 4 This is a schematic diagram of the infusion tube under the squeezed state in this utility model.

[0023] Figure 5 This is a schematic diagram of the tie rod in this utility model.

[0024] Figure 6 This is a schematic diagram of the structure of the liquid block of this utility model.

[0025] Figure reference numerals: 100, stopper plate; 101, stopper plate body; 102, infusion tank; 103, pull rod groove; 104, guide rod; 105, stopper block groove; 106, fixing mounting hole; 107, spring groove; 200, paired stopper plates; 300, pull rod; 301, pull rod body; 302, wedge-shaped inclined surface; 303, pull ring; 304, spring guide rod; 305, first spring; 400, infusion tube; 500, stopper block; 501, sliding platform; 502, first pressure block; 503, guide rod mounting hole; 504, second pressure block; 600, second spring. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0027] In one embodiment, such as Figure 1 , Figure 3 and Figure 6 As shown, an infusion set stopping device includes a stopping plate 100, in which an infusion tube 400 is fitted. The infusion tube 400 is fitted into a stopping block 500. The stopping block 500 slides left and right to press the infusion tube 400, thereby stopping the infusion. The stopping block 500 includes a sliding platform 501, on which a first pressing block 502 is fixedly connected. The back of the first pressing block 502 has a guide rod mounting hole 503, which supports and guides the sliding of the stopping block 500. A second pressing block 504 is also fitted on the sliding platform 501, which can drive the stopping block 500 to slide left and right with the help of a pull rod 300.

[0028] In one embodiment, such as Figure 2As shown, the stop plate 100 includes a stop plate body 101, in which a through infusion groove 102 is provided. A pull rod groove 103 is also provided next to the infusion groove 102, and a spring groove 107 is also provided behind the pull rod groove 103. A stop block groove 105 is provided laterally in the inner wall of the stop plate body 101. A guide rod 104 is fixedly connected to the inner wall of the stop block groove 105 and cooperates with the guide rod mounting hole 503 to support the sliding of the stop block 500. A plurality of fixed mounting holes 106 are also distributed in the stop plate body 101.

[0029] In one embodiment, such as Figure 1 As shown, a matching liquid stop plate 200 is also provided on the outer side of the liquid stop plate 100, and the matching liquid stop plate 200 is fixedly connected to the liquid stop plate 100 by bolts.

[0030] In one embodiment, such as Figure 5 As shown, a pull rod 300 is also provided in the pull rod groove 103. The pull rod 300 includes a pull rod body 301. The bottom of the pull rod body 301 is provided with a wedge-shaped inclined surface 302. The top of the pull rod body 301 is also provided with a pull ring 303, which facilitates the operator to pull the pull rod 300 up and down. Two spring guide rods 304 are fixedly connected below the pull ring 303, which can limit the pull rod 300 during the up and down movement of the pull rod 300. A first spring 305 is sleeved on the spring guide rod 304.

[0031] In one embodiment, such as Figure 4 and Figure 5 As shown, the first spring 305 is a tension spring, and the two ends of the first spring 305 can be fixedly connected to the spring groove 107 by means of adhesive or bolt locking, so that it generates elastic force when subjected to tension, which is conducive to the pull rod 300 returning to its original position. The shape of the wedge-shaped inclined surface 302 matches the second pressure block 504. Through the inclined surface cooperation, the first pressure block 502 can press firmly on the infusion tube 400.

[0032] In one embodiment, such as Figure 4 As shown, the depth of the spring groove 107 should be such that when the first spring 305 is stretched to its limit length, the spring guide rod 304 is still located in the spring groove 107, preventing the pull rod 300 from disengaging from the pull rod slide groove 103 during the pulling process.

[0033] In one embodiment, such as Figure 4 As shown, a second spring 600 is provided on the inner wall of the guide rod mounting hole 503. The second spring 600 is a compression spring, and one end of the second spring 600 is fixed to the inner wall of the liquid stop block groove 105.

[0034] In one embodiment, such as Figure 6 As shown, the liquid-stopping block 500 is integrally formed, and the above structure can greatly improve the structural strength of the liquid-stopping block 500.

[0035] Working principle: First, the infusion tube 400 is placed in the infusion tank 102. Then, the matching stop plate 200 is placed on the stop plate 100 through the fixing hole 106, and the stop plate 100 and the matching stop plate 200 are fixed with bolts. When it is necessary to stop the flow, the pull ring 303 pulls the pull rod 300. With the cooperation of the wedge-shaped inclined surface 302 and the inclined surface of the second pressure block 504, the stop block 500 is pushed by the second spring 600 and slides, so that the first pressure block 502 presses the infusion tube 400. When it is necessary for the liquid in the infusion tube 400 to flow normally, the pull ring 303 is released. Under the action of the first spring 305, the pull rod 300 moves downward, and the wedge-shaped inclined surface 302 pushes the second pressure block 504 in the opposite direction, so that the stop block 500 returns to its original position.

[0036] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An infusion set stop device, comprising a stop plate (100), wherein an infusion tube (400) is fitted in the stop plate (100), and the infusion tube (400) is fitted in a stop block (500), characterized in that, The liquid-stopping block (500) includes a sliding platform (501), on which a first pressure block (502) is fixedly connected. A guide rod mounting hole (503) is provided on the back of the first pressure block (502), and a second pressure block (504) is also provided on the sliding platform (501).

2. A solution stop device for a solution infusion set according to claim 1, wherein The stop plate (100) includes a stop plate body (101), in which a through infusion groove (102) is provided, and a pull rod groove (103) is provided next to the infusion groove (102). A spring groove (107) is also provided behind the pull rod groove (103). A stop block groove (105) is provided laterally in the inner wall of the stop plate body (101), and a guide rod (104) is fixedly connected to the inner wall of the stop block groove (105). A plurality of fixing holes (106) are also distributed in the stop plate body (101).

3. A solution stop device for a solution infusion set according to claim 1, wherein A matching stop plate (200) is also provided on the outer side of the stop plate (100), and the matching stop plate (200) is fixedly connected to the stop plate (100) by bolts.

4. A solution stop device for a solution infusion set according to claim 2, wherein A pull rod (300) is also provided in the pull rod groove (103). The pull rod (300) includes a pull rod body (301). The bottom of the pull rod body (301) is provided with a wedge-shaped inclined surface (302). The top of the pull rod body (301) is also provided with a pull ring (303). Two spring guide rods (304) are fixedly connected below the pull ring (303). A first spring (305) is sleeved on the spring guide rod (304).

5. A solution stop device for a solution infusion set according to claim 4, wherein The first spring (305) is a tension spring, and the shape of the wedge-shaped inclined surface (302) matches the second pressure block (504).

6. A solution stop device for a solution infusion set according to claim 2, wherein The depth of the spring groove (107) is such that when the first spring (305) is stretched to its limit length, the spring guide rod (304) is still located in the spring groove (107).

7. A solution stop device for a solution infusion set according to claim 1, wherein A second spring (600) is fitted into the inner wall of the guide rod mounting hole (503), and the second spring (600) is a compression spring.

8. A solution stop device for a solution infusion set according to claim 1, wherein The liquid-stopping block (500) is integrally formed.

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