Dialysis bag clamp capable of being operated by one person

Abstract

The dialysis bag clamp capable of being operated by one person comprises a clamping plate assembly and a locking assembly, and the locking assembly is used for locking and fixing the clamping plate assembly. The clamping plate assembly comprises a clamping plate A and a clamping plate B which are hinged to each other, the clamping plate A and the clamping plate B are respectively used for clamping a dialysis bag, the mutually attached side faces of the clamping plate A and the clamping plate B are respectively provided with an edge strip group A and an edge strip group B, and the edge strip group A and the edge strip group B are matched in a matched mode; the locking assembly comprises a threaded column and a nut, the threaded column can penetrate through the A clamping plate and the B clamping plate, and the nut is matched with the threaded column in a threaded mode. The dialysis bag clamp is simple in structure, easy to achieve, suitable for common dialysis experiments and capable of being operated by a single person, the flexibility and convenience of experiment operation are improved, the clamping friction force and clamping tightness of a dialysis bag are enhanced, meanwhile, the dialysis bag is prevented from being broken or fractured due to too large extrusion force, and the protection effect on the dialysis bag is enhanced.

Description

Technical Field

[0001] The utility model relates to the field of tools for protein purification experiments, in particular to a dialysis bag clamp which can be operated by one person. Background Art

[0002] In the final stages of protein purification, dialysis is often required to displace the buffer and remove salts. Dialysis is a simple diffusion process in which small molecules in the solute diffuse from a high-concentration solution through a semipermeable membrane into a low-concentration solution until osmotic pressure reaches equilibrium. Dialysis bags are commonly used semipermeable membranes in laboratories. When using dialysis bags to dialyze proteins, both ends of the dialysis tape must be sealed.

[0003] In the prior art, the main methods for sealing dialysis bags include: the rope tying method, where both ends are manually tied with a thin rope; and the clamping method, where both ends are clamped with a dialysis bag clamp. The rope tying method requires at least two people to operate and cannot be completed by a single person. The dialysis bag clamp used in the clamping method is the sealing clamp used in daily life. This type of clamp has two problems: it does not clamp tightly and it is easy to break. A loose clamp can lead to protein overflow after the dialysis bag swells; the problem of easy breaking is more serious. Since the support edges of ordinary sealing clamps are basically right-angle structures, the dialysis bag will break from the edge of the clamp, resulting in the failure of the experiment. Utility Model Content

[0004] The utility model provides a dialysis bag clamp that can be operated by one person while ensuring good sealing performance and is safe and unlikely to cause dialysis bag breakage, which can solve at least one of the above technical problems.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: a dialysis bag clamp that can be operated by one person, comprising a clamping plate assembly and a locking assembly, wherein the locking assembly is used to lock and fix the clamping plate assembly;

[0006] The clamp assembly includes a clamp A and a clamp B that are hinged to each other. The clamp A and the clamp B are used to clamp the dialysis bag respectively, and the sides of the clamp A and the clamp B are respectively provided with a rib group A and a rib group B, and the rib group A matches the rib group B.

[0007] The locking assembly includes a threaded column and a nut. The threaded column can pass through the A clamping plate and the B clamping plate, and the nut is thread-matched with the threaded column.

[0008] Furthermore, the A plywood and the B plywood are made of the same material and have the same size and thickness. When the A plywood and the B plywood are fitted together, their sizes match each other.

[0009] The A clamping plate includes an A clamping surface and an A clamping head, wherein the A clamping head is placed on the top of the A clamping surface and is integrally formed with the A clamping surface, and the A rib group is arranged on the inner side of the A clamping surface;

[0010] The B clamping plate includes a B clamping surface and a B clamping head, wherein the B clamping head is placed on the top of the B clamping surface and is integrally formed with the B clamping surface, and the B rib group is arranged on the inner side of the B clamping surface;

[0011] The inner side surface of the A clamping surface and the inner side surface of the B clamping surface can be fitted with each other, and the threaded column can pass through the A clamping head and the B clamping head in sequence.

[0012] Furthermore, the A rib group has N A ribs, which are evenly spaced along the length direction of the A clamping surface; the B rib group has N+1 B ribs, which are evenly spaced along the length direction of the B clamping surface; and one A rib can be fitted between two adjacent B ribs.

[0013] Furthermore, the A rib group forms a continuous wave-shaped structure with smooth arc-shaped rounded corners on the A clamping surface;

[0014] The B rib group forms a continuous wave-shaped structure with smooth arc-shaped rounded corners on the B clamping surface.

[0015] Furthermore, a hinge shaft is fixed to the bottom of the A clamping surface along the width direction, and hinge buckles are distributed at intervals on the bottom of the B clamping surface, and the hinge buckles are rotatably matched with the hinge shaft.

[0016] Furthermore, a threaded hole A is centrally provided on the A chuck, and a threaded hole B is centrally provided on the B chuck. The threaded hole A and the threaded hole B correspond to each other in the upper and lower parts, and the inner walls of both are provided with threaded strips.

[0017] The threaded column includes a threaded portion and a smooth portion. The threaded portion can match the A threaded hole, the B threaded hole and the nut thread. The length of the smooth portion is H-1mm, and H is the sum of the thicknesses of the A splint and the B splint.

[0018] Furthermore, the threaded column and the nut are made of the same material, which is a metal material that does not react with common buffer solutions.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. The dialysis bag clamp proposed by the utility model is suitable for common dialysis experimental operations. It utilizes a clamping splint assembly with adjustable tightness using a locking assembly, and adds a rib group with a continuous, smooth, arc-shaped, rounded, and wavy structure between the two splints. By matching the two groups of rib groups, the clamping friction and clamping tightness of the dialysis bag are enhanced, while avoiding excessive squeezing force that may cause the dialysis bag to break or rupture, thereby enhancing the protection of the dialysis bag.

[0021] 2. The dialysis bag clamp proposed by the utility model has a simple structure and is easy to implement. It is suitable for common dialysis experiments and can be operated by one person, thereby improving the flexibility and convenience of experimental operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0023] Figure 1 It is a front view of the overall structure of an embodiment of the utility model.

[0024] Figure 2 It is a schematic diagram of the inner side of the A splint in the embodiment of the present utility model.

[0025] Figure 3 It is a schematic diagram of the inner side of the B splint in an embodiment of the present utility model.

[0026] Figure 4 It is a front view of the locking assembly of an embodiment of the present utility model.

[0027] Figure 5 It is a schematic diagram of the assembly of the A rib group, the B rib group, and the A / B rib group of the first embodiment of the present invention.

[0028] Figure 6 It is an assembly diagram of the A rib group, the B rib group, and the A / B rib group of the second embodiment of the present invention.

[0029] Figure 7 It is an assembly diagram of the A rib group, the B rib group, and the A / B rib group of the third embodiment of the present invention.

[0030] Figure 8 It is an assembly diagram of the A rib group, the B rib group, and the A / B rib group of the fourth embodiment of the present invention.

[0031] The components in the accompanying drawings are marked as follows: 1. Clamp assembly; 2. Locking assembly; 3. Clamp A; 301. Clamp surface A; 302. Clamp A; 303. Hinge shaft; 304. Threaded hole A; 4. Clamp B; 401. Clamp surface B; 402. Clamp B; 403. Hinge buckle; 404. Threaded hole B; 5. Rib group A; 501. Convex rib A; 502. Concave rib A; 6. Rib group B; 601. Convex rib B; 602. Concave rib B; 7. Threaded column; 701. Threaded portion; 702. Smooth portion; 8. Nut. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0033] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement, etc. between the components under a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly. In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that meet both A and B. In addition, "N" means more than two.

[0034] See also Figure 1-Figure 4 The embodiment of the present utility model provides a dialysis bag clamp that can be operated by one person, comprising a clamping plate assembly 1 and a locking assembly 2, wherein the locking assembly 2 is used to lock and fix the clamping plate assembly 1;

[0035] The clamp assembly 1 includes a clamp A 3 and a clamp B 4 that are hinged to each other. The clamp A 3 and the clamp B 4 are used to clamp the dialysis bag respectively, and the sides of the clamp A 5 and the clamp B 6 are respectively provided with a rib group A 5 and a rib group B 6 on the sides of the clamp A 3 and the clamp B 6. The rib group A 5 matches the rib group B 6.

[0036] The locking assembly 2 includes a threaded column 7 and a nut 8 . The threaded column 7 can pass through the A clamping plate 3 and the B clamping plate 4 . The nut 8 is threadably matched with the threaded column 7 .

[0037] The dialysis bag clamp proposed by the utility model is suitable for common dialysis experimental operations. It utilizes a clamping splint assembly with adjustable tightness of a locking assembly, and a rib group with a continuous, smooth, arc-shaped, rounded, and wavy structure is added between the two splints. Through the matching of the two rib groups, the clamping friction and clamping tightness of the dialysis bag are enhanced, while the dialysis bag is prevented from being broken or ruptured due to excessive squeezing force, thereby enhancing the protection of the dialysis bag.

[0038] See also Figure 1-Figure 3 In this embodiment, the A plywood 3 and the B plywood 4 are made of the same material and are of equal size and thickness. The A plywood 3 and the B plywood 4 are matched in size when in the fitted state.

[0039] The A clamping plate 3 includes an A clamping surface 301 and an A clamping head 302. The A clamping head 302 is placed on top of the A clamping surface 301 and is integrally formed with the A clamping surface 301. The A rib group 5 is provided on the inner side of the A clamping surface 301.

[0040] The B clamping plate 4 includes a B clamping surface 401 and a B clamping head 402. The B clamping head 402 is placed on top of the B clamping surface 401 and is integrally formed with the B clamping surface 401. The B rib group 6 is provided on the inner side of the B clamping surface 401.

[0041] The inner side surface of the A clamping surface 301 and the inner side surface of the B clamping surface 401 can be fitted with each other, and the threaded column 7 can pass through the A clamping head 302 and the B clamping head 402 in sequence.

[0042] With this design, according to experimental needs, when using a dialysis bag for dialysis, the dialysis bag is cleaned and drained of moisture, and then placed flat on the A clamp surface 301 or the B clamp surface 401 at a vertical angle, and then the A clamp 3 and the B clamp 4 are folded and tightened so that the threaded column 7 passes through the A clamp 302 and the B clamp 402, and the nut 8 is tightened along the threaded column 7, the other end of the dialysis bag is lifted, and the sample to be dialyzed is added. The dialysis bag is lifted vertically, and excess air in the dialysis bag is discharged with both hands, and another dialysis bag clamp is clamped vertically 1 cm above the upper end of the sample liquid surface, and the nut 8 is tightened. After marking, the bag is placed in the dialysate for a certain period of time, thereby completing a dialysis.

[0043] It should be noted that the plates A 3 and B 4 should be smooth and free of thorns to avoid puncturing or piercing the dialysis bag during operation and contaminating the experimental data.

[0044] See also Figure 2-Figure 3In this embodiment, the A rib group 5 has N A ribs, and the N A ribs are evenly spaced along the length direction of the A clamping surface 301. The B rib group 6 has N+1 B ribs, and the N+1 B ribs are evenly spaced along the length direction of the B clamping surface 401. One A rib can be fitted between two adjacent B ribs.

[0045] With such a design, when the A clamping plate 3 or the B clamping plate 4 is folded so that the A clamping surface 301 fits in with the B clamping surface 401, the A rib is embedded between two adjacent B ribs, completing the fitting and snap connection between the A rib group 5 and the B rib group 6. In this way, when the A clamping surface 301 and the B clamping surface 401 fit in with each other to clamp the dialysis bag, the clamping friction and the clamping tightness of the dialysis bag can be enhanced.

[0046] See also Figure 5-Figure 8 In this embodiment, the A rib group 5 forms a continuous wave-shaped structure with smooth arc-shaped rounded corners on the A clamping surface 301;

[0047] The B rib group 6 forms a continuous wave-shaped structure with smooth arc-shaped rounded corners on the B clamping surface 401 .

[0048] In this design, mutually matching wavy stripes are distributed on the inner side surfaces of the A clamping surface 301 and the B clamping surface 401. By designing the wavy stripes into smooth rounded arcs, the edges of the stripes are prevented from being too sharp and cutting the dialysis bag, thereby enhancing the protection of the dialysis bag.

[0049] The specific configuration of the A rib group 5 and the B rib group 6 of this application is detailed in the following embodiments:

[0050] Example 1, see Figure 5 :

[0051] The A rib group 5 includes N A convex ribs 501 and N-1 A concave ribs 502. The A convex ribs 501 protrude upward from the inner side surface of the A clamping surface 301 and are semicircular. The A concave ribs 502 are concave downward from the inner side surface of the A clamping surface 301 and are semicircular. The A concave ribs 502 are placed between two adjacent A convex ribs 501. The corners between the A convex ribs 501 or the A concave ribs 502 and the A clamping surface 301 are all rounded.

[0052] The B rib group 6 includes N-1 B convex ribs 601 and N B concave ribs 602. The B convex ribs 601 protrude upward from the inner side surface of the B clamping surface 401 and are semicircular in shape. The B concave ribs 602 are concave downward from the inner side surface of the B clamping surface 401 and are semicircular in shape. The B concave ribs 602 are placed between two adjacent B convex ribs 601, and the corners between the B convex ribs 601 or the B concave ribs 602 and the B clamping surface 401 are rounded.

[0053] The diameters of the A convex rib 501, the A concave rib 502, the B convex rib 601 and the B concave rib 602 are all equal, which are R, and R / 2 is less than the thickness of the A plywood 3 or the B plywood 4. The A convex rib 501 and the B concave rib 602 are snap-fitted and matched one by one, and the B concave rib 602 and the B convex rib 601 are snap-fitted and matched one by one, so that the A clamping surface 301 and the B clamping surface 401 are tightly fitted, and the dialysis bag is clamped between the A clamping surface 301 and the B clamping surface 401, and the A rib group 5 and the B rib group 6 at the same time.

[0054] Example 2, see Figure 6 :

[0055] The A rib group 5 includes N A convex ribs 501 and N-1 A concave ribs 502. The A convex ribs 501 protrude upward from the inner side surface of the A clamping surface 301 and are in the shape of a boss. The A concave ribs 502 are concave downward between two adjacent A convex ribs 501 and are in the shape of a semicircle. The bottom of the A concave rib 502 is on the same horizontal line as the inner side surface of the A clamping surface 301. The corners between the A convex rib 501 or the A concave rib 502 and the A clamping surface 301 are all rounded.

[0056] The B rib group 6 includes N-1 B convex ribs 601 and N B concave ribs 602. The B convex ribs 601 protrude upward from the inner side surface of the B clamping surface 401 and are semicircular in shape. The top of the B convex rib 601 and the inner side surface of the B clamping surface 401 are on the same horizontal line. The B concave rib 602 is concave downward between two adjacent B convex ribs 601 and is in the shape of an inverted boss. The corners between the B convex rib 601 or the B concave rib 602 and the B clamping surface 401 are all rounded.

[0057] The diameters of the A concave rib strip 502 and the B convex rib strip 601 are equal, both being R, and R / 2 is smaller than the thickness of the A plywood 3 or the B plywood 4. The A concave rib strip 502 and the B convex rib strip 601 are snap-fitted and matched one by one, and the A convex rib strip 501 and the B concave rib strip 602 are snap-fitted and matched one by one, so that the A clamping surface 301 and the B clamping surface 401 are tightly fitted, and the dialysis bag is clamped between the A clamping surface 301 and the B clamping surface 401, and the A rib strip group 5 and the B rib strip group 6 at the same time.

[0058] Example 3, see Figure 7 :

[0059] The A rib group 5 includes N A convex ribs 501 and N-1 A concave ribs 502. The A convex ribs 501 protrude upward from the inner side surface of the A clamping surface 301 and are in a square shape. The A concave ribs 502 are concave downward from the inner side surface of the A clamping surface 301 and are in a square shape. The A concave ribs 502 are placed between two adjacent A convex ribs 501, and the corners between the A convex ribs 501 or the A concave ribs 502 and the A clamping surface 301 are all rounded.

[0060] The B rib group 6 includes N-1 B convex ribs 601 and N B concave ribs 602. The B convex ribs 601 protrude upward from the inner side surface of the B clamping surface 401 and are in a square shape. The B concave ribs 602 are concave downward from the inner side surface of the B clamping surface 401 and are in a square shape. The B concave ribs 602 are placed between two adjacent B convex ribs 601, and the corners between the B convex ribs 601 or the B concave ribs 602 and the B clamping surface 401 are all rounded.

[0061] The A convex rib 501, A concave rib 502, B convex rib 601 and B concave rib 602 are all of equal size, with side lengths of L, which is smaller than the thickness of the A plywood 3 or the B plywood 4. The A convex rib 501 is snap-fitted with the B concave rib 602, and the B concave rib 602 is snap-fitted with the B convex rib 601, so that the A clamping surface 301 is tightly fitted with the B clamping surface 401, and the dialysis bag is simultaneously clamped between the A clamping surface 301 and the B clamping surface 401, and the A rib group 5 and the B rib group 6.

[0062] Example 4, see Figure 8 :

[0063] The A rib group 5 includes N A convex ribs 501 and N-1 A concave ribs 502. The A convex ribs 501 protrude upward from the inner side surface of the A clamping surface 301 and are in a square shape. The A concave ribs 502 are concave downward between two adjacent A convex ribs 501 and are in a square shape. The bottom of the A concave rib 502 is on the same horizontal line as the inner side surface of the A clamping surface 301. The corners between the A convex rib 501 or the A concave rib 502 and the A clamping surface 301 are all rounded.

[0064] The B rib group 6 includes N-1 B convex ribs 601 and N B concave ribs 602. The B convex ribs 601 protrude upward from the inner side surface of the B clamping surface 401 and are in a square shape. The top of the B convex rib 601 and the inner side surface of the B clamping surface 401 are on the same horizontal line. The B concave rib 602 is concave downward between two adjacent B convex ribs 601 and is in a square shape. The corners between the B convex rib 601 or the B concave rib 602 and the B clamping surface 401 are all rounded.

[0065] The A convex rib 501, A concave rib 502, B convex rib 601 and B concave rib 602 are all of equal size, with side lengths of L, which is smaller than the thickness of the A plywood 3 or the B plywood 4. The A convex rib 501 is snap-fitted with the B concave rib 602, and the B concave rib 602 is snap-fitted with the B convex rib 601, so that the A clamping surface 301 is tightly fitted with the B clamping surface 401, and the dialysis bag is simultaneously clamped between the A clamping surface 301 and the B clamping surface 401, and the A rib group 5 and the B rib group 6.

[0066] It should be noted that, in the above embodiments, the total width of the A clamping surface 301 occupied by the A rib group 5 or the total width of the B clamping surface 401 occupied by the B rib group 6 should be greater than the width of the dialysis bag.

[0067] The above are limited cases of the A rib group 5 and the B rib group 6 listed in this application. In fact, there are other waveform situations, which are not listed here one by one. All those that can achieve the clamping effect of the A splint 3 and the B splint 4 on the dialysis bag in this application fall within the scope of protection of this application.

[0068] See also Figure 1-Figure 3In this embodiment, a hinge axis 303 is fixed to the bottom of the A clamping surface 301 along its width, and hinge buckles 403 are spaced apart at the bottom of the B clamping surface 401. The hinge buckles 403 are rotatably fitted with the hinge axis 303. This design allows the A clamping plate 3 and the B clamping plate 4 to be foldably hingedly connected, allowing them to rotate to separate or engage with each other. Furthermore, the hinge axis 303 or the hinge buckles 403 are located at the bottom of the A clamping surface 301 or the B clamping surface 401, respectively, and do not occupy the thickness of the A clamping plate 3 or the B clamping plate 4, thereby not affecting the clamping effect of the dialysis bag.

[0069] See also Figure 1-Figure 4 In this embodiment, a threaded hole A 304 is centrally provided on the A chuck 302, and a threaded hole B 404 is centrally provided on the B chuck 402. The threaded hole A 304 and the threaded hole B 404 correspond to each other in the upper and lower parts, and the inner walls of both are provided with threaded strips.

[0070] The threaded column 7 includes a threaded portion 701 and a smooth portion 702. The threaded portion 701 can be threadably matched with the A threaded hole 304, the B threaded hole 404 and the nut 8. The length of the smooth portion 702 is H-1 mm, where H is the sum of the thicknesses of the A splint 3 and the B splint 4.

[0071] With this design, the threaded assembly of the nut 8 and the threaded column 7 is used to adjust the clamping tightness between the A clamp 3 and the B clamp 4. The operation is simple and easy to implement. At the same time, by providing the smooth portion 702 without thread strips at the bottom of the threaded column 7, over-tightening and clamping off of the dialysis bag can be avoided when tightening the nut 8.

[0072] See also Figure 4 In this embodiment, the threaded column 7 and the nut 8 are made of the same material, a metal material that does not react with common buffers. This design allows the threaded column 7 and the nut 8 to be made of a metal material such as titanium or a titanium alloy to avoid reaction with the buffer, thereby preventing contamination of experimental data.

[0073] In summary, the dialysis bag clamp proposed by the utility model is suitable for common dialysis experimental operations. On the one hand, a clamping splint assembly with adjustable tightness of the locking assembly is utilized, and a rib group with a continuous, smooth, arc-shaped, rounded, and wavy structure is added between the two splints. Through the matching of the two groups of rib groups, the clamping friction and clamping tightness of the dialysis bag are enhanced, while avoiding excessive squeezing force that causes the dialysis bag to break or rupture, thereby enhancing the protection of the dialysis bag. On the other hand, the dialysis bag clamp proposed by the utility model has a simple structure and is easy to implement. It is suitable for common dialysis experiments and can be operated by one person, thereby improving the flexibility and convenience of experimental operations.

[0074] It should be understood that the examples and implementation methods described herein are for illustrative purposes only and are not intended to limit the present invention. Those skilled in the art may make various modifications or changes based on them. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A dialysis bag clamp that can be operated by one person, characterized in that: It comprises a clamping plate assembly (1) and a locking assembly (2), wherein the locking assembly (2) is used to lock and fix the clamping plate assembly (1); The splint assembly (1) comprises a splint A (3) and a splint B (4) which are hinged to each other, wherein the splint A (3) and the splint B (4) are respectively used to clamp the dialysis bag, and a rib group A (5) and a rib group B (6) are respectively provided on one side where the two splints are in contact with each other, wherein the rib group A (5) and the rib group B (6) are matched with each other; The locking assembly (2) comprises a threaded column (7) and a nut (8), wherein the threaded column (7) can pass through the A clamping plate (3) and the B clamping plate (4), and the nut (8) is threadably matched with the threaded column (7).

2. The dialysis bag clamp operable by one person as claimed in claim 1, characterized in that: The A splint (3) and the B splint (4) are made of the same material and have the same size and thickness. When the A splint (3) and the B splint (4) are fitted together, their sizes match; The A clamping plate (3) comprises an A clamping surface (301) and an A clamping head (302), wherein the A clamping head (302) is placed on the top of the A clamping surface (301) and is integrally formed with the A clamping surface (301), and the A rib group (5) is arranged on the inner side of the A clamping surface (301); The B clamping plate (4) comprises a B clamping surface (401) and a B clamping head (402), wherein the B clamping head (402) is placed on the top of the B clamping surface (401) and is integrally formed with the B clamping surface (401), and the B rib group (6) is arranged on the inner side of the B clamping surface (401); The inner side surface of the A clamping surface (301) and the inner side surface of the B clamping surface (401) can fit together, and the threaded column (7) can pass through the A clamping head (302) and the B clamping head (402) in sequence.

3. The dialysis bag clamp operable by one person as claimed in claim 2, characterized in that: The A rib group (5) has N A ribs, and the N A ribs are evenly spaced along the length direction of the A clamping surface (301). The B rib group (6) has N+1 B ribs, and the N+1 B ribs are evenly spaced along the length direction of the B clamping surface (401). One A rib can be inserted between two adjacent B ribs.

4. The dialysis bag clamp operable by one person as claimed in claim 2, characterized in that: The A-rib group (5) forms a continuous wave-shaped structure with smooth arc-shaped rounded corners on the A-clamping surface (301); The B rib group (6) forms a continuous wave-shaped structure with smooth arc-shaped rounded corners on the B clamping surface (401).

5. The dialysis bag clamp operable by one person as claimed in claim 2, characterized in that: A hinge shaft (303) is fixed to the bottom of the A clamping surface (301) along the width direction, and hinge buckles (403) are distributed at intervals on the bottom of the B clamping surface (401). The hinge buckles (403) are rotatably fitted to match the hinge shaft (303).

6. The dialysis bag clamp operable by one person as claimed in claim 2, characterized in that: The A chuck (302) is provided with an A threaded hole (304) in the center, and the B chuck (402) is provided with a B threaded hole (404) in the center. The A threaded hole (304) and the B threaded hole (404) correspond to each other in the upper and lower parts, and the inner walls of both are provided with threaded strips. The threaded column (7) includes a threaded portion (701) and a smooth portion (702). The threaded portion (701) can be matched with the thread of the A threaded hole (304), the B threaded hole (404) and the nut (8). The length of the smooth portion (702) is H-1mm, where H is the sum of the thicknesses of the A splint (3) and the B splint (4).

7. The dialysis bag clamp operable by one person according to claim 1, characterized in that: The threaded column (7) and the nut (8) are made of the same material, which is a metal material that does not react with common buffer solutions.

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