Measuring tool for measuring length of dialysis membrane bundle

Abstract

The utility model relates to the technical field of dialysis membrane bundle measurement, in particular to a measuring tool for measuring the length of a dialysis membrane bundle. The measuring tool for measuring the length of the dialysis membrane bundle comprises a base plate, a dialysis membrane bracket, a fixing block, a sliding block, a caliper, a vernier, a pressing block and a screw, the dialysis membrane bracket is fixed on the rear side of the top of the base plate, and the fixing block is installed at the position, located on the right side of the dialysis membrane bracket, of the top of the base plate. A caliper is placed on the front side of the top of the bottom plate and pressed on the bottom plate through a plurality of pressing blocks, the pressing blocks are fixed on the bottom plate through screws, a vernier is slidably connected to the left side of the caliper in a sleeved mode, and a sliding block is connected to the rear end of the vernier in a clamped mode and located on the left side of the dialysis membrane bracket. The surfaces, in contact with the dialysis membrane bundle, of the fixed block and the sliding block are designed to be circular, compared with a traditional caliper clamping foot, the contact area is remarkably increased, the parallelism during measurement is ensured, and the consistency and accuracy of measurement results are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dialysis membrane bundle measurement, in particular to a measuring tool for measuring the length of a dialysis membrane bundle. Background Art

[0002] A dialyzer is a sterile, disposable medical device used for blood purification, one of the primary methods of renal replacement therapy. As a key component of the dialyzer, the performance of the dialysis membrane directly impacts its overall effectiveness.

[0003] During dialyzer production, the length of the dialysis membrane is a crucial quality control indicator. The quality of the membrane is directly impacted by the final dialyzer quality. Specifically, if the membrane is too short, dispensing can lead to clogging of the membrane pores, resulting in product failure. However, if the membrane is too long, material waste increases, raising production costs.

[0004] Currently, the most common method for measuring dialysis membrane length is to use a handheld caliper. The operator holds the caliper horizontally, clamps the ends of the dialysis membrane bundle with the fixed foot and the movable foot of the vernier, and then reads and records the measured value. However, this method has the following disadvantages:

[0005] 1. The contact area between the caliper foot and the dialysis membrane bundle is small, and the dialysis membrane bundle itself is relatively soft and easily deformed, which will affect the accuracy of the measurement;

[0006] 2. During the measurement process, the operator is required to keep the caliper horizontal, which places high demands on the operator's technical level and experience, and is prone to large measurement errors. Utility Model Content

[0007] In order to overcome the above-mentioned shortcomings, the technical problem to be solved is: to provide a measuring tool for measuring the length of the dialysis membrane bundle.

[0008] The technical implementation scheme of the utility model is: a measuring tool for measuring the length of a dialysis membrane bundle, comprising a base plate, a dialysis membrane bracket, a fixed block, a sliding block, a caliper, a vernier, a pressure block and screws. The dialysis membrane bracket is fixed on the rear side of the top of the base plate, the top of the base plate is located on the right side of the dialysis membrane bracket through a fixed block, a caliper is placed on the front side of the top of the base plate, the caliper is pressed against the base plate by a plurality of pressure blocks, and the pressure block is fixed to the base plate by screws, a vernier is slidably sleeved on the left side of the caliper, and a sliding block is clamped on the rear end of the vernier, and the sliding block is located on the left side of the dialysis membrane bracket.

[0009] Furthermore, the inner side of the dialysis membrane bracket is arc-shaped, and the contact surface between the dialysis membrane bracket and the dialysis membrane bundle is an arc, and adapted to each other, the contact portion between the fixed block, the sliding block and the dialysis membrane bundle is circular, fitting the shape of the dialysis membrane bundle.

[0010] Furthermore, it also includes a connecting block, a first screw and a clamping block. The connecting block is connected to the left side of the sliding block. The connecting block and the sliding block are combined and sleeved on the cursor. The connecting block is threadedly connected to the first screw. The right end of the first screw is rotatably connected to the clamping block. The clamping block is slidably connected to the inner side of the connecting block, and the clamping block is against the left side wall of the cursor.

[0011] Furthermore, it also includes a rotating frame, a first magnet bar and a second magnet bar. The top of the dialysis membrane bracket is rotatably connected to the rotating frame, the rear side of the bottom of the rotating frame is connected to the first magnet bar, and the rear side of the top of the dialysis membrane bracket is connected to the second magnet bar. The first magnet bar and the second magnet bar are magnetically attracted.

[0012] Furthermore, a handle is connected to the rear side of the top of the rotating frame.

[0013] Furthermore, it also includes a support block and a second screw rod. The left side of the cursor is connected to the support block, and the second screw rod is threadedly connected to the support block, and the second screw rod is against the top surface of the bottom plate.

[0014] Compared with the existing technology, the present invention has the following advantages: 1. The surfaces of the fixed block and the sliding block that contact the dialysis membrane bundle are designed to be circular. Compared with the traditional caliper feet, the contact area is significantly increased, which not only ensures parallelism during measurement, but also greatly improves the consistency and accuracy of the measurement results;

[0015] 2. The caliper is fixed horizontally relative to the base plate. The operator does not need to manually maintain the horizontal state, and the value can be read directly. This not only simplifies the operation steps and improves work efficiency, but also reduces the operator's labor intensity. It is particularly suitable for applications in large-scale production environments.

[0016] 3. The dialysis membrane holder is equipped with a rotatable rotating frame, which can provide effective limiting effect after the dialysis membrane bundle is placed. It not only prevents the dialysis membrane bundle from deformation or displacement caused by external force, but also ensures the stability of the entire measurement process, further guaranteeing the reliability of the measurement results. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0018] Figure 2 It is a partial three-dimensional structural diagram of the utility model.

[0019] Figure 3 It is a schematic diagram of the explosion structure of the utility model.

[0020] Figure 4 It is a partial cross-sectional view of the present utility model.

[0021] The names and serial numbers of the parts in the figure are: 1. Base plate, 2. Dialysis membrane bracket, 3. Fixed block, 4. Sliding block, 5. Caliper, 51. Vernier, 6. Pressure block, 7. Screw, 8. Connecting block, 9. First screw, 10. Clamping block, 11. Support block, 12. Second screw, 13. Rotating frame, 14. First magnet bar, 15. Second magnet bar. DETAILED DESCRIPTION

[0022] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] Example: A measuring tool for measuring the length of a dialysis membrane bundle, such as Figure 1-Figure 3 As shown, it includes a base plate 1, a dialysis membrane holder 2, a fixed block 3, a sliding block 4, a caliper 5, a cursor 51, a pressure block 6 and a screw 7. The dialysis membrane holder 2 is fixed to the rear side of the top of the base plate 1 by two screws 7. The top of the base plate 1 is located on the right side of the dialysis membrane holder 2 and a fixed block 3 for supporting the right end of the dialysis membrane bundle is installed by two screws 7. A caliper 5 is placed on the front side of the top of the base plate 1. The caliper 5 is pressed on the base plate 1 by multiple pressure blocks 6, and the pressure block 6 is fixed to the base plate 1 by screws 7. The left side of the caliper 5 is slidably sleeved with a cursor 51, and the rear end of the cursor 51 is clamped with a sliding block 4 for supporting the left end of the dialysis membrane bundle. The sliding block 4 is located on the left side of the dialysis membrane holder 2. The inner side of the dialysis membrane holder 2 is arc-shaped, and the contact surface between the dialysis membrane holder 2 and the dialysis membrane bundle is a circular arc and adapted to each other. The part of the fixed block 3 in contact with the sliding block 4 and the dialysis membrane bundle is circular, fitting the shape of the dialysis membrane bundle.

[0024] like Figure 1 、 Figure 3 and Figure 4 As shown, it also includes a connecting block 8, a first screw 9 and a clamping block 10. The connecting block 8 is connected to the left side of the sliding block 4. The connecting block 8 and the sliding block 4 are combined and sleeved on the cursor 51. The connecting block 8 is threadedly connected to the first screw 9. The right end of the first screw 9 is rotatably connected to the clamping block 10. The clamping block 10 is slidably connected to the inner side of the connecting block 8, and the clamping block 10 is against the left side wall of the cursor 51 to fix the sliding block 4 and the connecting block 8.

[0025] like Figure 1 and Figure 3 As shown, it also includes a rotating frame 13, a first magnet bar 14 and a second magnet bar 15. The top of the dialysis membrane holder 2 is rotatably connected to the rotating frame 13 for limiting the dialysis membrane bundle. The top rear side of the rotating frame 13 is connected to a handle, which is convenient for pulling the handle to open and close the rotating frame 13. The bottom rear side of the rotating frame 13 is connected to the first magnet bar 14, and the top rear side of the dialysis membrane holder 2 is connected to the second magnet bar 15. The first magnet bar 14 and the second magnet bar 15 are magnetically adsorbed to fix the rotating frame 13 on the dialysis membrane holder 2.

[0026] like Figure 1As shown, it also includes a support block 11 and a second screw 12. The support block 11 is welded to the left side of the cursor 51. The second screw 12 is threadedly connected to the support block 11. The second screw 12 presses against the top surface of the base plate 1 to fix the cursor 51.

[0027] When measuring the length of the dialysis membrane bundle, the rotating frame 13 should be rotated to the open state first to ensure that the first magnet bar 14 is separated from the second magnet bar 15. Then, the dialysis membrane bundle should be placed steadily on the dialysis membrane bracket 2 to ensure that the right end is in close contact with the fixed block 3. After that, the rotating frame 13 should be gently reversed to the closed position, and the magnetic force between the first magnet bar 14 and the second magnet bar 15 is used for natural adsorption to fix the rotating frame 13. This step not only helps to limit the position of the dialysis membrane bundle, but also effectively prevents it from deforming during the measurement process. Next, loosen the second screw 12 appropriately to release the cursor 51 so that it can move freely. Slowly move the cursor 51 until the sliding block 4 is close to the other end of the dialysis membrane bundle. At this time, observe the scale at the intersection of the cursor 51 and the caliper 5 to accurately read the length of the dialysis membrane bundle. To ensure the accuracy of the measurement value After the sliding block 4 is firmly in contact with the dialysis membrane bundle, the second screw 12 needs to be tightened in time to prevent the cursor 51 from sliding accidentally, so as to facilitate recording of relevant data. After completing a measurement, loosen the second screw 12 again, move the sliding block 4 to the left, and then open the rotating frame 13 to take out the dialysis membrane bundle. Subsequently, open the rotating frame 13 and carefully take out the measured dialysis membrane bundle. Repeat the above steps to complete the length measurement of other dialysis membrane bundles in turn. It is worth noting that the sliding block 4 is fixed to the cursor 51 by the pressing block 6. If the sliding block 4 needs to be removed, just rotate the first screw 9 to prompt the clamping block 10 to move to the left, thereby releasing the cursor 51 and allowing the sliding block 4 to be easily removed. When reinstalling, the reverse operation is performed, that is, the sliding block 4 is fixed by the clamping block 10 against the cursor 51 to ensure its stability during the entire use process.

[0028] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A measuring tool for measuring the length of a dialysis membrane bundle, characterized by: The invention comprises a base plate (1), a dialysis membrane bracket (2), a fixed block (3), a sliding block (4), a caliper (5), a cursor (51), a pressing block (6) and a screw (7); the dialysis membrane bracket (2) is fixed to the rear side of the top of the base plate (1); the top of the base plate (1) is located on the right side of the dialysis membrane bracket (2) and is provided with a fixed block (3); the top of the base plate (1) is provided with a caliper (5) on the front side; the caliper (5) is pressed on the base plate (1) by a plurality of pressing blocks (6); and the pressing block (6) is fixed to the base plate (1) by a screw (7); the left side of the caliper (5) is slidably sleeved with a cursor (51); the rear end of the cursor (51) is clamped with a sliding block (4); and the sliding block (4) is located on the left side of the dialysis membrane bracket (2).

2. A measuring tool for measuring the length of a dialysis membrane bundle according to claim 1, characterized in that: The inner side of the dialysis membrane bracket (2) is arc-shaped, and the contact surface between the dialysis membrane bracket (2) and the dialysis membrane bundle is an arc. Furthermore, the portion where the fixed block (3) contacts the sliding block (4) and the dialysis membrane bundle is circular and fits the shape of the dialysis membrane bundle.

3. A measuring tool for measuring the length of a dialysis membrane bundle according to claim 2, characterized in that: The invention also includes a connecting block (8), a first screw rod (9) and a clamping block (10). The left side of the sliding block (4) is connected to the connecting block (8). The connecting block (8) and the sliding block (4) are assembled and sleeved on the cursor (51). The connecting block (8) is threadedly connected to the first screw rod (9). The right end of the first screw rod (9) is rotatably connected to the clamping block (10). The clamping block (10) is slidably connected to the inner side of the connecting block (8), and the clamping block (10) is against the left side wall of the cursor (51).

4. A measuring tool for measuring the length of a dialysis membrane bundle according to claim 3, characterized in that: The invention also includes a rotating frame (13), a first magnet bar (14) and a second magnet bar (15); the top of the dialysis membrane bracket (2) is rotatably connected to the rotating frame (13); the bottom rear side of the rotating frame (13) is connected to the first magnet bar (14); the top rear side of the dialysis membrane bracket (2) is connected to the second magnet bar (15); the first magnet bar (14) and the second magnet bar (15) are magnetically attracted.

5. A measuring tool for measuring the length of a dialysis membrane bundle according to claim 4, characterized in that: The top rear side of the rotating frame (13) is connected with a handle.

6. A measuring tool for measuring the length of a dialysis membrane bundle according to claim 5, characterized in that: It also includes a support block (11) and a second screw rod (12). The left side of the cursor (51) is connected to the support block (11). The support block (11) is threadedly connected to the second screw rod (12). The second screw rod (12) abuts against the top surface of the bottom plate (1).

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