Infusion flow control valve

Abstract

The utility model discloses an infusion flow control valve, relates to the technical field of medical infusion, and aims to solve the problems that an infusion tube with a fixed diameter can only be adjusted by the same control valve, when infusion tubes of different models need to be used, the models are not matched, and a worker needs to take the control valve with the matched model again. If the number of the control valves is not enough, the infusion progress of the patient can be affected. The clamping device comprises a shell, a clamping piece and an adjusting piece, the adjusting piece comprises a one-way ball screw rotationally connected to the inner side wall of the shell, the periphery of the outer side of the one-way ball screw is sleeved with an adjusting sleeve block, a rotating block is arranged on the outer side wall of the shell, and the end, away from the one-way ball screw, of the adjusting sleeve block is connected with a resistance round block; a connecting block is connected to the center of the side, away from the adjusting sleeve block, of the resistance round block, control valves capable of being matched with infusion tubes of different models are formed, and workers can replace the infusion tubes of different models conveniently.

Description

Technical Field

[0001] This utility model relates to the field of medical infusion technology, specifically to an infusion flow control valve. Background Technology

[0002] An infusion flow control valve is a device used to regulate the infusion rate. It is commonly used in hospitals or home care. It mainly achieves automatic regulation of the infusion flow rate by installing an outlet connection resistance converter at the bottom of the high flow tube. The infusion flow control valve is simple to operate, quick to adjust, highly accurate in adjustment, and provides stable flow output without fluctuations. It is not affected by external factors, has a sensitive automatic flow regulation response, and has a very wide output flow range. It is suitable for infusion in patients with heart disease, infants, and patients taking special medications.

[0003] Existing infusion flow control valves primarily regulate the infusion flow rate by adjusting the longitudinal height of the resistance block within the housing to apply different squeezing forces to the infusion tubing. However, under normal circumstances, the same control valve can only adjust infusion tubing of a fixed diameter. When using infusion tubing of different models, a mismatch problem arises, requiring staff to obtain a control valve of the matching model. If the number of control valves in stock is insufficient, it can affect the patient's infusion progress. Utility Model Content

[0004] The purpose of this invention is to provide an infusion flow control valve to solve the problem mentioned in the background art that, under normal circumstances, the same control valve can only adjust infusion tubing with a fixed diameter. When different models of infusion tubing are needed, a mismatch problem will occur, requiring staff to obtain a control valve with the matching model. If the number of control valves stored is insufficient, it will affect the patient's infusion progress.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an infusion flow control valve, comprising a housing, a clamping member, and an adjusting member. The clamping member is respectively disposed at the top and bottom of the housing, and the adjusting member is disposed inside the housing. The adjusting member includes a one-way ball screw rotatably connected to the inner side wall of the housing. An adjusting sleeve block is sleeved around the outer circumference of the one-way ball screw. A rotating block is disposed on the outer side wall of the housing. A resistance block is connected to the end of the adjusting sleeve block away from the one-way ball screw, and a connecting block is connected to the center position of the resistance block on the side away from the adjusting sleeve block.

[0006] By adopting the above technical solution, the squeezing force of the resistance block on the infusion tube can be adjusted by continuously rotating the connecting block while holding it.

[0007] Preferably, the clamping member includes a fixing plate fixed to the top and bottom of the housing, and clamping rings are hinged on both sides of the outside of the fixing plate. A clamping block is fixed to the end of the clamping ring away from the fixing plate.

[0008] By adopting the above technical solution, the shell can be fixed to the outside of the infusion tube.

[0009] Preferably, there are two sets of clamping blocks, which are symmetrically distributed on the vertical central axis of the housing. One set of clamping blocks is rotatably connected to a threaded rod inside. One end of the threaded rod extends to the outside of the set of clamping blocks, and the other end of the threaded rod passes through the interior of the other set of clamping blocks and is threadedly connected to the inside of the other set of clamping blocks.

[0010] By adopting the above technical solution, the size of the clamping block's opening can be adjusted to fit infusion tubes of different diameters.

[0011] Preferably, the adjusting sleeve has a threaded groove inside, and the one-way ball screw passes through the inside of the threaded groove and is threadedly connected to the inside of the threaded groove.

[0012] By adopting the above technical solution, when the unidirectional ball screw rotates, it pushes the resistance block to move.

[0013] Preferably, the interior of the housing is provided with a movable transverse groove, which is connected to the exterior of the housing. The end of the connecting block away from the resistance block passes through the interior of the movable transverse groove and extends to the exterior of the housing. The connecting block slides against the inner side of the movable transverse groove.

[0014] By adopting the above technical solution, when the resistance block moves, it can drive the connecting block to slide inside the moving cross groove.

[0015] Preferably, the end of the connecting block away from the resistance circle is provided with a first socket, and the side of the housing near the connecting block is provided with several sets of second sockets, which are arranged at equal intervals along the length of the moving transverse groove.

[0016] By adopting the above technical solution, the opening size of the No. 2 socket is compatible with that of the No. 1 socket.

[0017] Preferably, the first socket is internally connected to a plug block, one end of which extends into the interior of a set of second sockets.

[0018] By adopting the above technical solution, the position of the moved connecting block can be fixed.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: by first inserting the infusion tube into the inside of the clamping member and the housing, and then using two sets of clamping members to install the housing on the outside of the infusion tube, the rotating block is held to drive the one-way ball screw to rotate continuously, pushing the adjusting sleeve block to move. When the adjusting sleeve block moves, it drives the resistance block to apply resistance to the infusion tube, which can adjust the flow rate of different types of infusion tubes, thereby forming a control valve that can be adapted to different types of infusion tubes. This makes it easier for staff to replace different types of infusion tubes, reduces the occurrence of model incompatibility problems, and improves the convenience of using the control valve. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the external structure of the present utility model;

[0021] Figure 2 This is a partial cross-sectional structural diagram of the present invention;

[0022] Figure 3 This is an enlarged schematic diagram of point A in this utility model;

[0023] Figure 4 This is an enlarged schematic diagram of section B of this utility model;

[0024] Figure 5 This is a top view of the structure of this utility model.

[0025] In the diagram: 1. Housing; 101. Moving transverse groove; 102. No. 2 socket; 2. Clamping component; 201. Fixing plate; 202. Clamping ring; 203. Clamping block; 204. Threaded rod; 3. Adjusting component; 301. One-way ball screw; 302. Adjusting sleeve block; 303. Rotating block; 304. Resistance round block; 305. Connecting block; 306. Threaded groove; 307. No. 1 socket; 308. Insertion block. Detailed Implementation

[0026] 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.

[0027] The following is in conjunction with the appendix Figure 1-5 The present invention will be described in further detail below.

[0028] Example 1

[0029] Please see Figure 1-5This embodiment provides a technical solution for an infusion flow control valve: an infusion flow control valve includes a housing 1, a clamping member 2, and an adjusting member 3. The clamping member 2 is provided in two sets, respectively located at the top and bottom of the housing 1. The clamping member 2 can fix the housing 1 to the outside of the infusion tube and can accommodate different types of infusion tubes. The clamping member 2 includes a fixing plate 201 bolted to the top and bottom of the housing 1. Clamping rings 202 are hinged to both sides of the fixing plate 201. Two sets of clamping rings 202 are provided and symmetrically distributed along the vertical central axis of the fixing plate 201. A clamping block 203 is bolted to the end of the clamping ring 202 away from the fixing plate 201. Two sets of clamping blocks 203 are provided, and the two sets of clamping blocks 203 are located on the housing 1. Symmetrically distributed along the vertical central axis, a set of clamping blocks 203 has a threaded rod 204 connected to its interior via bearings. One end of the threaded rod 204 passes through the interior of another set of clamping blocks 203 and is threadedly connected to the inner side of the clamping block 203. The interior of the other set of clamping blocks 203 has a slot that matches the threaded rod 204. One end of the threaded rod 204 extends to the outside of the set of clamping blocks 203 and is screwed to a square rotating handle. When the square rotating handle is gripped and rotated, the threaded rod 204 can be rotated, and the other set of clamping blocks 203 can be moved. This allows adjustment of the size of the two sets of clamping rings 202 to accommodate different types of infusion tubing. When the clamping ring 202 is in close contact with the outer wall of the infusion tubing, the housing 1 can be installed on the outside of the infusion tubing.

[0030] Example 2

[0031] Please see Figure 1-5The adjusting component 3 is disposed inside the housing 1. The adjusting component 3 includes a one-way ball screw 301 connected to the inner wall of the housing 1 via a bearing. A rotating block 303 is disposed on the outer wall of the housing 1. The end of the rotating block 303 extends to the inner side of the housing 1 and is threadedly connected to one end of the rotating block 303. Therefore, when the rotating block 303 is gripped and rotated, the one-way ball screw 301 can be rotated. An adjusting sleeve 302 is sleeved around the outer circumference of the one-way ball screw 301. A threaded groove 306 is formed inside the adjusting sleeve 302. The one-way ball screw 301 passes through the threaded groove 306 and is threadedly connected to the inner side of the threaded groove 306. The adjusting sleeve 302 is screwed to a resistance block 304 at the end away from the one-way ball screw 301. When the one-way ball screw 301 rotates, it drives the adjusting sleeve 302 to move laterally. When the adjusting sleeve 302 moves, it drives the resistance block 304 to move synchronously. During the movement of the resistance block 304, it squeezes the infusion tube. By adjusting the position of the resistance block 304, the squeezing force on the infusion tube is adjusted, thereby adjusting the flow rate of the liquid in the infusion tube. A connecting block 305 is screwed to the center position of the side of the resistance block 304 away from the adjusting sleeve 302. When the resistance block 304 moves, it drives the connecting block 305 to move synchronously.

[0032] Example 3

[0033] Please see Figure 1-5 The housing 1 has a movable transverse groove 101 inside, which is connected to the outside of the housing 1. The end of the connecting block 305 away from the resistance round block 304 passes through the interior of the movable transverse groove 101 and extends to the outside of the housing 1. The connecting block 305 slides against the inner side of the movable transverse groove 101. When the resistance round block 304 moves, it drives the connecting block 305 to slide on the inner side of the movable transverse groove 101, thereby providing support for the other part of the resistance round block 304. The connecting block 305 has a "T" shaped structure. The end of the connecting block 305 away from the resistance round block 304 has a first socket 307. The side of the housing 1 near the connecting block 305 has several sets of second sockets 102. 02 are arranged at equal intervals along the length of the moving transverse groove 101. The second socket 102 is located above the moving transverse groove 101. A plug-in block 308 is inserted into the inside of the first socket 307. One end of the plug-in block 308 extends into the inside of the second socket 102. The plug-in block 308 can be moved out or inserted into the inside of the second socket 102. When the plug-in block 308 is inserted into the inside of the second socket 102 and the first socket 307, the position of the connecting block 305 can be fixed to avoid the displacement of the resistance block 304. When the plug-in block 308 is moved out of the inside of the second socket 102 and the first socket 307, the squeezing force of the resistance block 304 on the infusion tube can be adjusted again by rotating the rotating block 303.

[0034] Working principle: First, insert the infusion tube into the clamp 2 and the inside of the housing 1. Then, hold the end of the threaded rod 204 and rotate it continuously. At this time, the other set of clamping blocks 203 will move closer until the inner side wall of the clamping ring 202 is in contact with the outer side wall of the infusion tube. Repeat this operation on the clamping parts 2 at the top and bottom of the housing 1 to fix the main body of the housing 1 on the infusion tube.

[0035] Next, grasp the end of the plug block 308 and pull it out laterally to release the fixed state of the connecting block 305. Grasp the rotating block 303 and continue to rotate it. The rotating block 303 drives the one-way ball screw 301 to rotate. When the one-way ball screw 301 rotates, it pushes the adjusting sleeve block 302 to move. When the adjusting sleeve block 302 moves, it drives the resistance block 304 to move synchronously. The resistance block 304 squeezes the infusion tube and applies resistance to the infusion tube to adjust the flow rate of the infusion tube. When the adjustment is completed, stop rotating the rotating block 303.

[0036] Finally, hold the end of the connector 308, align it with the inside of the first connector 307, and insert it horizontally into the inside of the first connector 307 and the second connector 102 to fix the position of the connector 305. When the infusion flow needs to be readjusted, repeat the above operation to complete the work.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An infusion flow control valve, characterized in that, Infusion flow control valves include: Shell (1); Clamping member (2), which is respectively disposed at the top and bottom of housing (1); An adjusting component (3) is disposed inside the housing (1). The adjusting component (3) includes a one-way ball screw (301) rotatably connected to the inner wall of the housing (1). An adjusting sleeve block (302) is sleeved around the outer side of the one-way ball screw (301). A rotating block (303) is disposed on the outer wall of the housing (1). A resistance block (304) is connected to one end of the adjusting sleeve block (302) away from the one-way ball screw (301). A connecting block (305) is connected to the center position of the resistance block (304) on the side away from the adjusting sleeve block (302).

2. The infusion flow control valve according to claim 1, characterized in that: The clamping member (2) includes a fixing plate (201) fixed at the top and bottom of the housing (1). Both sides of the fixing plate (201) are hinged with clamping rings (202). A clamping block (203) is fixed at one end of the clamping ring (202) away from the fixing plate (201).

3. The infusion flow control valve according to claim 2, characterized in that: Two sets of clamping blocks (203) are provided. The two sets of clamping blocks (203) are symmetrically distributed on the vertical central axis of the housing (1). A threaded rod (204) is rotatably connected inside one set of clamping blocks (203). One end of the threaded rod (204) extends to the outside of the set of clamping blocks (203), and the other end of the threaded rod (204) passes through the interior of the other set of clamping blocks (203) and is threadedly connected to the inside of the other set of clamping blocks (203).

4. The infusion flow control valve according to claim 3, characterized in that: The adjusting sleeve (302) has a threaded groove (306) inside, and the one-way ball screw (301) passes through the inside of the threaded groove (306) and is threadedly connected to the inside of the threaded groove (306).

5. The infusion flow control valve according to claim 1, characterized in that: The housing (1) has a movable transverse groove (101) inside, which is connected to the outside of the housing (1). The end of the connecting block (305) away from the resistance block (304) passes through the inside of the movable transverse groove (101) and extends to the outside of the housing (1). The connecting block (305) slides against the inside of the movable transverse groove (101).

6. The infusion flow control valve according to claim 1, characterized in that: The connecting block (305) has a first socket (307) at one end away from the resistance round block (304). The housing (1) has several sets of second sockets (102) on the side near the connecting block (305). The several sets of second sockets (102) are arranged at equal intervals along the length of the moving transverse groove (101).

7. The infusion flow control valve according to claim 6, characterized in that: The first socket (307) is internally connected to a plug block (308), one end of which extends into the interior of a set of second sockets (102).

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