Infusion tube clamp
By designing an infusion tube clamp with an adjusting cam and a pressure-reducing part, the problem of requiring multiple clamps to operate in the prior art is solved, and the infusion tube opening and closing and flow rate adjustment can be easily achieved by operating it independently.
Patent Information
- Application Number
- CN202422989662.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2034-12-04
AI Technical Summary
Existing infusion tubing clamps require the use of stop clamps to open and close the infusion tubing and adjust the fluid flow rate, which makes operation inconvenient for users.
Design an infusion tube clamp that uses a first and second arm that are locked together, combined with an adjusting cam and a pressure part. The opening and closing of the infusion tube and the regulation of the liquid flow rate are achieved by pressing and rotating the adjusting cam, eliminating the need for a separate stop clamp.
It enables the opening and closing of the infusion tubing and the adjustment of the fluid flow rate using only the infusion tubing clamp, making the operation simple and convenient and avoiding the inconvenience caused by the operation of multiple clamps.
Smart Images
Figure CN223959085U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical infusion device technology, and in particular to an infusion tube clamp. Background Technology
[0002] An IV tubing clamp, commonly known as a "drip regulator" or simply a "drip device," is a device that clamps an IV tubing to regulate the flow rate of the fluid. Its main function is to control the flow rate of the fluid inside the IV tubing by adjusting the tightness of the clamp, thereby ensuring that the patient receives accurate and stable medication treatment.
[0003] Currently, most intravenous infusion tubing clamps used in clinical medicine employ roller-type clamps. While these clamps offer the advantage of regulating fluid flow rate, inexperienced medical staff often forget to use the roller clamps to close the infusion tubing when operating the infusion pump. To avoid this, some manufacturers have incorporated a stop clamp into the infusion tubing, which is used to connect or disconnect the tubing. While having both tubing clamps and a stop clamp on the infusion tubing allows for control over tubing connection, disconnection, and fluid flow rate, it requires the user to operate both separately, causing inconvenience. Utility Model Content
[0004] To address the aforementioned problems, the purpose of this utility model is to provide an infusion tube clamp that solves the problem that existing infusion tube clamps require the use of a stop clamp to open and close the infusion tube and adjust the fluid flow rate, which causes inconvenience to users.
[0005] This utility model is implemented as follows:
[0006] An infusion tube clamp includes a first arm and a second arm that are engaged and openable relative to each other. A channel for the infusion tube to pass through is formed between the first arm and the second arm. An adjusting cam is rotatably provided on the first arm, and a trapezoidal pressing part is protruding on the inner side wall of the second arm. The pressing part is arranged opposite to the adjusting cam.
[0007] Furthermore, one end of the first arm is fixedly connected to one end of the second arm via a connecting part, and the other end of the first arm is engaged or disengaged from the other end of the second arm.
[0008] Furthermore, the other end of the first arm is provided with a tapered snap-fit part, and the other end of the second arm is bent toward the first arm to form a bent part. A hook part is provided on the inner top wall of the bent part, and the snap-fit part and the hook part are snapped together or separated.
[0009] Furthermore, a rectangular clearance hole is provided on the first arm for the adjustment cam to pass through, and the adjustment cam is rotatably positioned within the clearance hole.
[0010] Furthermore, two rotating shafts are coaxially arranged on both sides of the adjusting cam, and the two rotating shafts pass through the first arm and are rotatably connected to it.
[0011] Furthermore, two blind holes are provided on the bottom wall of the clearance hole, with the two blind holes spaced apart. A spring is installed in each of the two blind holes, with one end of the spring abutting against the bottom of the blind hole and the other end of the spring fixedly connected to the outer periphery of the adjusting cam.
[0012] Furthermore, the inner sidewall of the first arm is provided with a first clamping part facing each other, and the two first clamping parts are respectively located on the upper and lower sides of the relief hole. The inner sidewall of the second arm is provided with two second clamping parts, and the two second clamping parts are respectively located on the upper and lower sides of the pressing part. The two second clamping parts are respectively configured to cooperate with the corresponding first clamping parts.
[0013] Furthermore, anti-slip textures are provided on the inner sidewalls of the first clamping part and the second clamping part.
[0014] Furthermore, the connecting part is U-shaped.
[0015] Furthermore, through holes are provided on both the connecting part and the bending part for the infusion tube to pass through.
[0016] The beneficial effects of this utility model are:
[0017] This utility model of an infusion tube clamp allows the first arm to move closer to or further away from the second arm by pressing and releasing it. The adjusting cam on the first arm and the pressing part on the second arm work together to open or close the infusion tube. By rotating the adjusting cam, the distance between it and the pressing part can be adjusted, thereby controlling the flow rate of the liquid in the infusion tube. There is no need to configure a separate stop clamp. The user only needs to press the first arm of the infusion tube clamp and rotate the adjusting cam to open and close the infusion tube and adjust the flow rate of the liquid. The operation is simple and convenient. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0019] Figure 2 This is a front view of the infusion tubing in the daily off-line state of this utility model.
[0020] Figure 3 This is a front view of the infusion tube in the connected state of this utility model.
[0021] Explanation of reference numerals in the attached figures:
[0022] 1. First arm; 11. Snap-fit part; 12. Clearance hole; 13. First clamping part; 131. Anti-slip texture; 2. Second arm; 21. Bending part; 22. Hook part; 23. Second clamping part; 3. Adjusting cam; 4. Pressing part; 5. Connecting part; 51. Through hole; 6. Rotating shaft; 7. Spring. Detailed Implementation
[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0024] like Figures 1-3 The infusion tube clamp of this utility model is shown, including a first arm 1 and a second arm 2 that are locked together and open and close. A channel for the infusion tube to pass through is formed between the first arm 1 and the second arm 2. An adjusting cam 3 is rotatably provided on the first arm 1. A trapezoidal pressing part 4 is protruding on the inner side wall of the second arm 2. The pressing part 4 is arranged opposite to the adjusting cam 3.
[0025] like Figure 1 and Figure 2 As shown, one end of the first arm 1 is fixedly connected to one end of the second arm 2 via a connecting part 5, which is U-shaped. The first arm 1, the second arm 2, and the connecting part 5 are integrally injection molded, and the infusion tube clamp is made of a plastic or rubber material with a certain degree of elasticity. The other end of the first arm 1 is engaged or disengaged from the other end of the second arm 2. The other end of the first arm 1 is provided with a tapered engaging part 11, and the other end of the second arm 2 is bent toward the first arm 1 to form a bent part 21. A hook part 22 is provided on the inner top wall of the bent part 21, and the engaging part 11 and the hook part 22 are engaged or disengaged. In this embodiment, there are two hook parts 22, which are arranged at intervals along the length direction of the bent part 21. By pressing the first arm 1, it moves closer to the second arm 2 and bends and deforms until the outer side of its locking part 11 abuts against the inner side of the hook part 22. Then, the first arm 1 is released, and the first arm 1 elastically deforms and returns to its original position, with its locking part 11 in close contact with the hook part 22, thus achieving the locking closure of the first arm 1 and the second arm 2. The position of the two hook parts 22 can be adjusted as needed to accommodate different clamping forces for different infusion tubes. Both the connecting part 5 and the bending part 21 have through holes 51 for the infusion tube to pass through. The infusion tube first passes through the through hole 51 of the bending part 21, extends downward through the channel between the first arm 1 and the second arm 2, and then exits from the through hole 51 of the connecting part 5.
[0026] An adjusting cam 3 is rotatably mounted on the first arm 1. A rectangular clearance hole 12 is provided on the first arm 1 for the adjusting cam 3 to pass through. The adjusting cam 3 is rotatably positioned within the clearance hole 12. In this embodiment, the clearance hole 12 prevents the large-diameter end of the adjusting cam 3 from passing through, i.e.... Figure 2 As shown, the large-diameter end of the adjusting cam 3 can only rotate within the channel enclosed by the first arm 1 and the second arm 2. Two rotating shafts 6 are coaxially arranged on both sides of the adjusting cam 3, passing through and rotatably connected to the first arm 1. Two blind holes (not shown in the figure) are provided on the bottom wall of the clearance hole 12, spaced apart. A spring 7 is installed within each blind hole, with one end of the spring 7 abutting against the bottom of the blind hole, and the other end of the spring 7 fixedly connected to the small-diameter section of the outer periphery of the adjusting cam 3.
[0027] Under normal conditions, the adjusting cam 3, due to its own weight, has its large-diameter end positioned close to the pressure part 4, and its lower side is supported by the spring 7, causing its large-diameter end to tilt slightly downwards. Figure 2 The diagram shows the normal operating state of the adjusting cam 3. The spring 7 is compressed, the distance between the adjusting cam 3 and the pressing part 4 is minimal, and the gap between them allows the infusion tube to pass through. At this time, the infusion line is closed, and the passageways of the infusion tube located above and below the adjusting cam 3 are not connected. When it is necessary to open the infusion line, such as... Figure 3 As shown, the adjusting cam 3 rotates clockwise around the center of the rotating shaft 6. During the rotation, the spring 7 gradually returns to its original position and extends, providing an upward supporting force to the adjusting cam 3. The adjusting cam 3 is configured to cooperate with the pressing part 4, allowing adjustment of the distance between the adjusting cam 3 and the pressing part 4, thereby regulating the flow rate of the fluid in the infusion tube. Moreover, the combined action of the adjusting cam 3, the pressing part 4, and the spring 7—that is, the upward supporting force of the spring 7 on the adjusting cam 3 and the force exerted by the weight of the adjusting cam 3—balances the force exerted by the adjusting cam 3 itself, ensuring that the infusion tube is always clamped, thus maintaining the flow rate of the fluid in the infusion tube.
[0028] The inner wall of the first arm 1 is provided with two first clamping parts 13 facing each other, located on the upper and lower sides of the clearance hole 12. The inner wall of the second arm 2 is provided with two second clamping parts 23, located on the upper and lower sides of the pressing part 4. The two second clamping parts 23 are respectively configured to cooperate with the corresponding first clamping parts 13. The opposing first clamping parts 13 and second clamping parts 23 cooperate with each other to clamp the two sides of the infusion tube. The inner walls of the opposing first clamping parts 13 and second clamping parts 23 are provided with anti-slip textures 131 to increase the friction with the outer wall of the infusion tube and prevent it from slipping off the infusion tube.
[0029] In use, the infusion tube clamp of this utility model is inserted through the through hole 51 of the bend 21 into the channel, and after passing through the gap between the pressing part 4 and the adjusting cam 3, it exits through the through hole 51 of the connecting part 5. The first arm 1 is pressed, causing it to move closer to the second arm 2 and bend and deform, so that the outer side of its locking part 11 abuts against the inner side of the hook part 22. Then, the first arm 1 is released, and the first arm 1 elastically deforms and returns to its original position, and its locking part 11 is in close contact with the hook part 22, realizing the locking closure of the first arm 1 and the second arm 2. Under normal conditions, such as Figure 2 As shown, the distance between the adjusting cam 3 and the pressure part 4 is at its minimum, the spring 7 is compressed, and the infusion tube passes through the gap between them, at which point the infusion tube is closed; when it is necessary to open and adjust the fluid flow rate in the infusion tube, such as Figure 3 As shown, the adjusting cam 3 rotates clockwise around the center of the rotating shaft 6. During the rotation, the spring 7 gradually returns to its original position and extends to provide an upward supporting force to the adjusting cam 3. The adjusting cam 3 is configured to cooperate with the pressing part 4, which can adjust the distance between the adjusting cam 3 and the pressing part 4, thereby adjusting the flow rate of the liquid in the infusion tube.
[0030] While this utility model discloses preferred embodiments to achieve the above objectives, it is not intended to limit the structural features of this utility model. Anyone skilled in the art should know that any easily conceivable variations or modifications are possible under the technical spirit of this utility model and are covered by the patent claims of this utility model.
Claims
1. An infusion tube clamp, characterized in that, It includes a first arm (1) and a second arm (2) that are relatively snapped together and openable. A channel for the infusion tube to pass through is formed between the first arm (1) and the second arm (2). An adjusting cam (3) is rotatably provided on the first arm (1). A trapezoidal pressing part (4) is protruding on the inner side wall of the second arm (2). The pressing part (4) is arranged opposite to the adjusting cam (3).
2. The infusion tubing clamp according to claim 1, characterized in that, One end of the first arm (1) is fixedly connected to one end of the second arm (2) through the connecting part (5), and the other end of the first arm (1) is engaged or separated from the other end of the second arm (2).
3. The infusion tubing clamp according to claim 2, characterized in that, The other end of the first arm (1) is provided with a tapered snap-fit part (11), and the other end of the second arm (2) is bent toward the first arm (1) to form a bent part (21). The inner top wall of the bent part (21) is provided with a hook part (22), and the snap-fit part (11) is snapped or separated from the hook part (22).
4. The infusion tubing clamp according to claim 1, characterized in that, The first arm (1) has a relief hole (12) for the adjustment cam (3) to pass through. The relief hole (12) is rectangular, and the adjustment cam (3) is rotatably disposed in the relief hole (12).
5. The infusion tubing clamp according to claim 4, characterized in that, The two sides of the adjusting cam (3) are coaxially provided with rotating shafts (6), and the two rotating shafts (6) pass through the first arm (1) and are rotatably connected to it.
6. The infusion tubing clamp according to claim 4, characterized in that, Two blind holes are provided on the bottom wall of the clearance hole (12), the two blind holes are spaced apart, and a spring (7) is provided in the two blind holes. One end of the spring (7) abuts against the bottom of the blind hole, and the other end of the spring (7) is fixedly connected to the outer periphery of the adjusting cam (3).
7. The infusion tubing clamp according to claim 5, characterized in that, The inner sidewall of the first arm (1) is provided with a first clamping part (13) facing each other, and the two first clamping parts (13) are respectively located on the upper and lower sides of the relief hole (12). The inner sidewall of the second arm (2) is provided with two second clamping parts (23), and the two second clamping parts (23) are respectively located on the upper and lower sides of the pressing part (4). The two second clamping parts (23) are respectively configured to cooperate with the corresponding first clamping parts (13).
8. The infusion tubing clamp according to claim 7, characterized in that, The inner sidewalls of the first clamping part (13) and the second clamping part (23) are provided with anti-slip texture (131).
9. The infusion tubing clamp according to claim 2, characterized in that, The connecting part (5) is U-shaped.
10. The infusion tubing clamp according to claim 3, characterized in that, Both the connecting part (5) and the bending part (21) are provided with through holes (51) for the infusion tube to pass through.