Liquid affinity detection device and detection method for hydrogel dressing

Abstract

The present invention belongs to the field of liquid detection technology, and in particular discloses a liquid affinity detection device and detection method for a hydrogel dressing, the detection device includes a connecting plate, the top of the connecting plate is fixedly connected with a U-shaped plate, the part of the connecting plate located on the inner side of the U-shaped plate is penetrated and plugged with multiple syringes, the bottom ends of the multiple syringes are provided with the same connecting tube, and the bottom end of the connecting tube is connected with a suction tube. When preparing the sample liquid, the screw is rotated to drive the strip plate to deflect upward through the movable block, and when the strip plate deflects to the set difference height, the T-shaped pull rod is pulled, and at this time, multiple core rods can move upward in sequence under the action of the corresponding insertion rod, so as to cooperate with the corresponding syringe to complete the extraction demand of proportional increase in solution volume. After the extraction is completed, the solutions in the multiple syringes are transferred to the corresponding sampling tubes, and the same amount of hydrogel dressings are added to different sampling tubes to quickly complete the rapid preparation of multiple sample liquids, thereby improving the detection efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of liquid detection, and in particular relates to a liquid affinity detection device and a detection method for a hydrogel dressing. Background Art

[0002] Hydrogel medical dressing is a new type of wound dressing developed in recent years. As a substitute for traditional gauze, it is widely used in various wounds, such as various ulcer wounds, wounds caused by trauma, and more serious burn wounds, scald wounds, chemical erosion wounds, etc. Compared with traditional dressings, hydrogel can shorten the wound healing time, relieve the patient's pain, promote better wound healing, and leave no scars. It can improve the microenvironment of the wound surface and inhibit the growth of bacteria.

[0003] Hydrogels need to be tested for hydrophilicity during production, and hydrophilicity-lipophilicity testing is a common experimental method used to test the affinity of a substance for water and oil. This testing method can help us understand the chemical properties and uses of a substance, and is of great significance for research in the fields of chemistry, biology, and medicine.

[0004] When measuring the hydrophilicity of existing hydrogels, multiple groups of sample solutions need to be prepared at the same time for comparative testing, and the concentration of each group of sample solutions also changes in a gradient. When preparing the sample solution, a syringe or burette needs to be used to extract solutions with increasing volumes in equal proportions multiple times to prepare the sample solution, which results in low sample solution preparation efficiency and affects the detection efficiency.

[0005] Therefore, it is necessary to invent a liquid affinity detection device and a detection method for a hydrogel dressing to solve the above problems. Summary of the invention

[0006] In view of the above problems, the present invention provides a liquid affinity detection device and a detection method for a hydrogel dressing to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a liquid affinity detection device for a hydrogel dressing, comprising a connecting plate, the top of the connecting plate is fixedly connected to a U-shaped plate, a portion of the connecting plate located on the inner side of the U-shaped plate is penetrated and inserted with a plurality of syringes, a common connecting tube is provided at the bottom ends of the plurality of syringes, a suction tube is connected to the bottom end of the connecting tube, a core rod is slidably inserted in the syringe, a plug hole is provided at the top end of the core rod, a plug rod is slidably inserted in the plug hole, a sleeve is slidably sleeved at the top end of the plug rod, a plurality of sleeves are connected to the same pull plate at the top end, a T-shaped pull rod is vertically fixedly connected to the top of the pull plate, the T-shaped pull rod is slidably penetrated and inserted into the syringe, and a plug hole is provided at the top end of the core rod, a plug rod is slidably sleeved at the top end of the plug rod, Inserted and connected to the top of the U-shaped plate; a vertical through hole is penetrated on the front side of the sleeve, a lever is inserted into the through hole, the rear end of the lever is fixedly connected to the front side of the lever near the top, and the front sides of multiple levers are provided with the same adjustment component, a connecting rod is vertically fixedly connected to the side of one of the core rods located at the end of the connecting plate, a vertical connecting hole is penetrated on the side of the U-shaped plate at the corresponding position of the connecting rod, and the connecting rod is inserted into the connecting hole, a first pointer is vertically fixedly connected to the end of the connecting rod away from the core rod, and the first pointer is perpendicular to the front side of the U-shaped plate, and a first scale is marked on the side of the U-shaped plate relative to the first pointer.

[0008] Furthermore, the adjusting assembly includes a strip plate, which is horizontally arranged on the front side of multiple levers, a strip-shaped slot is provided on the rear side of the strip plate, and the front ends of the multiple levers are slidably installed in the slot, the end of the strip plate close to the first pointer is hinged with a fixing rod, the top of the fixing rod is vertically fixedly connected to the bottom of the pull plate, the front side of the strip plate away from the fixed rod end is horizontally provided with a sliding groove, a slider is slidably installed in the sliding groove, the front side of the slider is rotatably connected with a movable block, the top thread of the movable block is penetrated by a screw, the position of the screw near the top is rotatably sleeved, the fixed block is fixedly connected to the front side of the pull plate, the side of the U-shaped plate close to the slider is marked with a second scale in the vertical direction, and the second scale is opposite to the side of the strip plate away from the fixed rod.

[0009] Furthermore, a handle is vertically fixedly connected to the rear side of the connecting plate, and the handle is located at the symmetrical center of the connecting plate.

[0010] Furthermore, the top of the connecting tube is provided with a plurality of connecting holes matching the bottom of the syringe, and a sealing ring is fixedly connected to the opening edge of the connecting hole. The connecting tube has a variety of specifications, and the difference between connecting tubes of different specifications lies in the number of connecting holes.

[0011] Furthermore, a movable bead is provided inside the suction tube, a fixed plate is provided on the top of the movable bead, and both ends of the fixed plate are fixedly connected to the inner wall of the suction tube, a spring is provided between the fixed plate and the movable bead, and the movable bead can block the bottom of the suction tube under the action of the spring, and the front and rear sides of the connecting tube are vertically fixedly connected with a support plate.

[0012] Furthermore, a second pointer is vertically fixedly connected to the side of the slider away from the fixed rod, and the free end of the second pointer slides through and is inserted into the inner wall of the sliding groove away from the fixed rod, and the free end of the second pointer is close to the second scale.

[0013] Furthermore, the depth of the insertion hole is equal to the length of the through hole, and the depth of the insertion hole is also equal to half the length of the core rod.

[0014] Furthermore, a swivel ring is rotatably sleeved on the shifting rod, and the shifting rod closest to the fixed rod is located at the end portion corresponding to one end of the slot.

[0015] The present invention also provides a detection method using any one of the above-mentioned liquid affinity detection devices for hydrogel dressings, the method comprising the following steps:

[0016] Step 1: Press the T-shaped pull rod first and make sure all the core rods are fully inserted into the corresponding syringes.

[0017] Step 2: Rotate the screw rod to pull the strip plate away from the fixed rod through the movable block and the slider to deflect upward, and observe the distance the strip plate deflects upward through the second scale according to the amount of the prepared solution.

[0018] Step 3: After the strips are adjusted, the distances that the multiple insertion rods can move along the corresponding insertion holes also increase or decrease in equal proportion, and then the connecting tubes are installed to the bottoms of the multiple syringes.

[0019] Step 4: Pull the T-shaped pull rod, thereby pulling multiple plug rods simultaneously through the pull plate and multiple sleeves, thereby pulling the corresponding core rods in turn through the multiple plug rods, and completing the demand for extracting solutions with proportionally increased volumes at one time.

[0020] Step 5: Remove the connecting tube and insert the bottoms of multiple syringes into multiple sampling tubes at the same time. As the T-shaped pull rod is pressed, the solutions in the multiple syringes can enter the corresponding sampling tubes.

[0021] Step 6: Add equal amounts of hydrogel dressing to different sampling tubes and test.

[0022] Technical effects and advantages of the present invention:

[0023] 1. The present invention is provided with an adjustment component. When it is necessary to prepare a sample liquid with a proportionally increased volume, the screw is first rotated to drive the strip plate to deflect upward through the movable block and the slider. When the strip plate deflects to the set difference height, the screw is stopped and the T-shaped pull rod is pulled. As the T-shaped pull rod moves upward, multiple core rods can move upward in sequence under the action of the corresponding insertion rods, thereby cooperating with the corresponding syringes to complete the extraction requirement of the proportionally increased volume of the solution. After the extraction is completed, the connecting tube is removed and the T-shaped pull rod is pressed to allow the solutions in the multiple syringes to enter the corresponding sampling tubes. Then, equal amounts of hydrogel dressings are added to different sampling tubes to quickly complete the rapid preparation of multiple sample liquids, thereby improving the detection efficiency.

[0024] 2. The present invention is provided with a movable bead. When the solution is extracted, the solution can push the movable bead upward under the action of atmospheric pressure, so that the bottom of the suction tube is opened, and then it is convenient to extract the solution. After the solution is extracted, the movable bead can seal the bottom of the suction tube under the action of the spring, so that when the connecting tube is removed from multiple syringes, the liquid remaining in the suction tube and the connecting tube will not flow out of the suction tube. In addition, when the connecting tube is removed, the suction tube can be placed downward on the operating table with any support plate as a fulcrum, so that the liquid remaining in the suction tube and the connecting tube can be prevented from flowing out of the connecting hole.

[0025] 3. The present invention is provided with a second pointer. When the screw is adjusted, as the screw rotates, the movable block can move in the vertical direction driven by the screw. As the movable block moves, the end of the strip close to the screw can deflect upward or downward under the cooperation of the slider and the slide groove. As the strip deflects upward, the second pointer can gradually extend from the slide groove and always point to the second scale, so that the tester can observe the deflection amount of the strip, thereby improving the accuracy of extracting solutions from multiple syringes. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a first three-dimensional structural schematic diagram of the present invention.

[0027] Figure 2 It is a second three-dimensional structural schematic diagram of the present invention.

[0028] Figure 3 It is a three-dimensional structural schematic diagram of the pull plate, the insertion rod, the sleeve and the T-shaped pull rod in the present invention.

[0029] Figure 4 It is a three-dimensional structural schematic diagram of the connecting tube, the supporting plate, the suction tube, the spring and the movable bead in the present invention.

[0030] Figure 5 It is a first stereoscopic schematic diagram of the adjustment component in the present invention.

[0031] Figure 6 It is a second stereoscopic schematic diagram of the adjustment component in the present invention.

[0032] Figure 7 It is a three-dimensional schematic diagram of structures such as a sleeve, a syringe, a core rod, an insertion rod and a first pointer in the present invention.

[0033] In the figure: 1. connecting plate; 2. U-shaped plate; 3. syringe; 4. connecting tube; 5. suction tube; 6. core rod; 7. insertion rod; 8. sleeve; 9. pull plate; 10. T-shaped pull rod; 11. lever; 12. adjustment assembly; 121. strip; 122. slot; 123. fixed rod; 124. connecting rod; 125. first pointer; 126. slider; 127. movable block; 128. screw; 13. handle; 14. sealing ring; 15. movable bead; 16. fixed plate; 17. spring; 18. support plate; 19. second pointer; 20. swivel. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0035] The present invention provides Figures 1 to 7 A liquid affinity detection device for a hydrogel dressing is shown, comprising a connecting plate 1, a U-shaped plate 2 is fixedly connected to the top of the connecting plate 1, a plurality of syringes 3 are inserted and penetrated through the portion of the connecting plate 1 located on the inner side of the U-shaped plate 2, a common connecting tube 4 is provided at the bottom ends of the plurality of syringes 3, a suction tube 5 is connected to the bottom end of the connecting tube 4, a core rod 6 is slidably inserted in the syringe 3, a plug hole is provided at the top end of the core rod 6, a plug rod 7 is slidably inserted in the plug hole, a sleeve 8 is slidably sleeved on the top end of the plug rod 7, a plurality of sleeves 8 are connected to the same pull plate 9 at the top, a T-shaped pull rod 10 is vertically fixedly connected to the top of the pull plate 9, and the T-shaped pull rod 10 is slidably inserted and penetrated through the top of the U-shaped plate 2.

[0036] A vertical through hole is penetrated on the front side of the sleeve 8, and a lever 11 is inserted into the through hole. The rear end of the lever 11 is fixedly connected to the front side of the insertion rod 7 near the top. The front sides of multiple levers 11 are provided with the same adjustment assembly 12. A connecting rod 124 is vertically fixedly connected to the side of one of the core rods 6 located at the end of the connecting plate 1. A vertical connecting hole is penetrated on the side of the U-shaped plate 2 at the corresponding position of the connecting rod 124, and the connecting rod 124 is inserted into the connecting hole. A first pointer 125 is vertically fixedly connected to the end of the connecting rod 124 away from the core rod 6, and the first pointer 125 is perpendicular to the front side of the U-shaped plate 2, and the position of the side of the U-shaped plate 2 opposite to the first pointer 125 is marked with a first scale.

[0037] The adjustment assembly 12 includes a strip plate 121, which is horizontally arranged on the front side of the plurality of levers 11, and a strip-shaped slot 122 is provided on the rear side of the strip plate 121, and the front ends of the plurality of levers 11 are slidably installed in the slot 122, and a fixing rod 123 is hingedly connected to one end of the strip plate 121 close to the first pointer 125, and the top end of the fixing rod 123 is vertically fixedly connected to the bottom of the pull plate 9, and a sliding groove is horizontally provided on the front side of the strip plate 121 away from the fixing rod 123, and a slider 126 is slidably installed in the sliding groove, and the slider 126 is slidably installed in the sliding groove. The front side of 26 is rotatably connected with a movable block 127, and a screw rod 128 is inserted through the top thread of the movable block 127. A fixed block is rotatably sleeved near the top of the screw rod 128, and the fixed block is fixedly connected to the front side of the pull plate 9. A second scale is marked in the vertical direction on the side of the U-shaped plate 2 close to the slider 126, and the second scale is opposite to the side of the strip 121 away from the fixed rod 123. A swivel 20 is rotatably sleeved on the lever 11, and the lever 11 closest to the fixed rod 123 is located at the end corresponding to the end of the slot 122.

[0038] When it is necessary to extract solutions increasing in equal proportion to prepare sample solutions, the difference between solutions of different volumes is first determined, and then the screw 128 is rotated so that the end of the strip 121 close to the second scale is pulled upward through the movable block 127 and the slider 126. During the upward deflection of the strip 121, except for the insertion rod 7 closest to the fixed rod 123, all other insertion rods 7 move upward under the action of the slot 122 of the strip 121 and the corresponding lever 11. During this process, the rotating ring 20 on the lever 11 can start to rotate under the action of the friction force of the slot 122, thereby converting the sliding friction between the lever 11 and the slot 122 into rolling friction between the rotating ring 20 and the slot 122, thereby reducing the friction.

[0039] As the strip 121 continues to deflect, when the end of the strip 121 close to the second scale is adjusted to the desired position, the screw 128 is stopped. At this time, the multiple insertion rods 7 can be located at different positions in the corresponding insertion holes under the cooperation of the card slot 122 and the lever 11. Then the connecting tube 4 is connected to the syringe 3, and the suction tube 5 is inserted into the solution. Then, the handle 13 is held with one hand, and the T-shaped pull rod 10 is pulled with the other hand. At this time, the pull plate 9 can pull the multiple insertion rods 7 upward at the same time through the fixed rod 123, the screw 128, the strip 121 and the multiple levers 11 under the action of the T-shaped pull rod 10. Since the depth of each insertion rod 7 in the insertion hole is different at this time, the depth of the insertion rod 7 closest to the syringe 3 is different. The bottom of the second scale insertion rod 7 is closest to the top of the hole, while the bottom of the insertion rod 7 closest to the fixed rod 123 is in close contact with the bottom of the corresponding hole. Therefore, as the multiple insertion rods 7 move upward synchronously, the insertion rod 7 closest to the second scale can first pull the core rod 6 upward to cooperate with the corresponding syringe 3 to absorb the solution. The insertion rods 7 in the remaining syringes 3 can only pull the corresponding core rod 6 in turn to extract the solution after moving to the first set difference height. Therefore, when the core rod 6 connected to the first pointer 125 moves upward to the set difference height, the extraction operation of multiple syringes 3 can be completed, and the volume of the solution in each syringe 3 increases proportionally.

[0040] After the extraction is completed, remove the connecting tube 4 and insert the bottoms of multiple syringes 3 into multiple sampling tubes at the same time. As the T-shaped pull rod 10 is pressed, the solutions in the multiple syringes 3 can enter the corresponding sampling tubes. Then, equal amounts of hydrogel dressings are added to different sampling tubes to quickly prepare multiple sample solutions, thereby improving detection efficiency.

[0041] like Figure 4 As shown, the top of the connecting tube 4 is provided with a plurality of connecting holes matching the bottom of the syringe 3, and the opening edge of the connecting hole is fixedly connected with a sealing ring 14. The connecting tube 4 has a variety of specifications, and the difference between connecting tubes 4 of different specifications lies in the number of connecting holes.

[0042] By providing connecting tubes 4 of different specifications, it is possible to meet the preparation requirements of different quantities of sample liquids, and when the connecting tube 4 of smaller specifications is installed on the syringe 3, the syringe 3 that is not connected to the connecting tube 4 can perform normal suction action, but because it is not connected to the connecting tube 4, the solution will not enter the syringe 3, thereby not affecting the normal use of other syringes 3.

[0043] like Figure 4As shown, a movable bead 15 is provided inside the suction tube 5, a fixed plate 16 is provided on the top of the movable bead 15, and both ends of the fixed plate 16 are fixedly connected to the inner wall of the suction tube 5, a spring 17 is provided between the fixed plate 16 and the movable bead 15, and the movable bead 15 can block the bottom of the suction tube 5 under the action of the spring 17, and the front and rear sides of the connecting tube 4 are vertically fixedly connected with a support plate 18.

[0044] By providing the movable bead 15, when the solution is extracted, the solution can push the movable bead 15 upward under the action of atmospheric pressure, so that the bottom of the suction tube 5 is opened, and then it is convenient to extract the solution. After the solution is extracted, the movable bead 15 can seal the bottom of the suction tube under the action of the spring 17, so that when the connecting tube 4 is removed from the multiple syringes 3, the liquid remaining in the suction tube 5 and the connecting tube 4 will not flow out of the suction tube 5. In addition, when the connecting tube 4 is removed, the suction tube 5 can be facing downward and placed on the operating table with any support plate 18 as a fulcrum, so that the liquid remaining in the suction tube 5 and the connecting tube 4 can be prevented from flowing out of the connecting hole.

[0045] like Figure 5 As shown, the second pointer 19 is vertically fixedly connected to the side of the slider 126 away from the fixed rod 123, and the free end of the second pointer 19 slides through and is inserted into the inner wall of the sliding groove away from the fixed rod 123, and the free end of the second pointer 19 is close to the second scale.

[0046] When the screw 128 is adjusted, as the screw 128 rotates, the movable block 127 can move in the vertical direction driven by the screw 128, and as the movable block 127 moves, the end of the strip 121 close to the screw 128 can deflect upward or downward under the cooperation of the slider 126 and the slide groove, and as the strip 121 deflects upward, the second pointer 19 can gradually extend from the slide groove and always point to the second scale, so that the tester can observe the deflection amount of the strip 121, thereby improving the accuracy of extracting solutions from multiple syringes 3.

[0047] The present invention also provides a detection method using any one of the above liquid affinity detection devices for hydrogel dressings, the method comprising the following steps:

[0048] Step 1: first press the T-shaped pull rod 10 and make all the core rods 6 fully inserted into the corresponding syringes 3.

[0049] Step 2: Rotate the screw 128 to pull the strip 121 away from the fixed rod 123 through the movable block 127 and the slider 126 to deflect upward, and observe the upward deflection distance of the strip 121 through the second scale according to the amount of the prepared solution.

[0050] Step 3: After the strip plate 121 is adjusted, the distances that the multiple insertion rods 7 can move along the corresponding insertion holes also increase or decrease in equal proportion, and then the connecting tube 4 is installed to the bottom of the multiple syringes 3.

[0051] Step 4: Pull the T-shaped pull rod 10, thereby pulling the multiple insertion rods 7 simultaneously through the pull plate 9 and the multiple sleeves 8, so that the corresponding core rods 6 are pulled in turn through the multiple insertion rods 7, and the demand for extracting solutions with proportionally increased volumes is completed at one time.

[0052] Step 5: Remove the connecting tube 4, and insert the bottoms of the multiple syringes 3 into the multiple sampling tubes at the same time. As the T-shaped pull rod 10 is pressed, the solutions in the multiple syringes 3 can enter the corresponding sampling tubes.

[0053] Step 6: Add equal amounts of hydrogel dressing to different sampling tubes and test.

[0054] The above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them.

Claims

1. A liquid affinity detection device for a hydrogel dressing, comprising a connecting plate (1), characterized in that: The top of the connecting plate (1) is fixedly connected to a U-shaped plate (2); a portion of the connecting plate (1) located inside the U-shaped plate (2) is penetrated and inserted with a plurality of syringes (3); the bottom ends of the plurality of syringes (3) are provided with a same connecting tube (4); the bottom ends of the connecting tube (4) are connected to a suction tube (5); a core rod (6) is slidably inserted in the syringe (3); a plug hole is provided at the top end of the core rod (6); a plug rod (7) is slidably inserted in the plug hole; a sleeve (8) is slidably sleeved at the top end of the plug rod (7); the top ends of the plurality of sleeves (8) are connected to a same pull plate (9); a T-shaped pull rod (10) is vertically fixedly connected to the top of the pull plate (9); the T-shaped pull rod (10) is slidably penetrated and inserted in the top of the U-shaped plate (2); a vertical plug hole is provided at the front side of the sleeve (8); A straight through hole is formed, wherein a lever (11) is inserted through the through hole, and the rear end of the lever (11) is fixedly connected to a position near the top of the front side of the insertion rod (7). The front sides of the plurality of levers (11) are provided with a same adjustment assembly (12). A connecting rod (124) is vertically fixedly connected to the side of one of the core rods (6) at the end of the connecting plate (1). A vertical connecting hole is formed through the side of the U-shaped plate (2) at a position corresponding to the connecting rod (124), and the connecting rod (124) is inserted through the connecting hole. A first pointer (125) is vertically fixedly connected to the end of the connecting rod (124) away from the core rod (6), and the first pointer (125) is perpendicular to the front side of the U-shaped plate (2). A first scale is marked on the side of the U-shaped plate (2) at a position opposite to the first pointer (125). The adjusting assembly (12) comprises a strip plate (121), wherein the strip plate (121) is horizontally arranged at the front side of the plurality of levers (11), a strip-shaped slot (122) is provided at the rear side of the strip plate (121), and the front ends of the plurality of levers (11) are slidably mounted in the slot (122), a fixing rod (123) is hingedly connected at one end of the strip plate (121) close to the first pointer (125), the top end of the fixing rod (123) is vertically fixedly connected to the bottom of the pull plate (9), and the front end of the strip plate (121) away from the fixing rod (123) is fixedly connected to the bottom of the pull plate (9). A sliding groove is horizontally opened on the side, and a slider (126) is slidably installed in the sliding groove. The front side of the slider (126) is rotatably connected to a movable block (127). The top thread of the movable block (127) is inserted with a screw rod (128). The screw rod (128) is rotatably sleeved with a fixed block near the top. The fixed block is fixedly connected to the front side of the pull plate (9). A second scale is marked in the vertical direction on the side of the U-shaped plate (2) close to the slider (126), and the second scale is opposite to the side of the strip plate (121) away from the fixed rod (123).

2. The liquid affinity detection device for a hydrogel dressing according to claim 1, characterized in that: A handle (13) is vertically fixedly connected to the rear side of the connecting plate (1), and the handle (13) is located at the symmetrical center of the connecting plate (1).

3. The liquid affinity detection device for a hydrogel dressing according to claim 1, characterized in that: The top of the connecting tube (4) is provided with a plurality of connecting holes matching the bottom of the syringe (3), and the opening edges of the connecting holes are fixedly connected with sealing rings (14). The connecting tube (4) has a plurality of specifications, and the difference between the connecting tubes (4) of different specifications lies in the number of connecting holes.

4. The liquid affinity detection device for a hydrogel dressing according to claim 3, characterized in that: A movable bead (15) is provided inside the suction tube (5), a fixing plate (16) is provided on the top of the movable bead (15), and both ends of the fixing plate (16) are fixedly connected to the inner wall of the suction tube (5), a spring (17) is provided between the fixing plate (16) and the movable bead (15), and the movable bead (15) can block the bottom of the suction tube (5) under the action of the spring (17), and the front and rear sides of the connecting tube (4) are vertically fixedly connected with a support plate (18).

5. The liquid affinity detection device for a hydrogel dressing according to claim 1, characterized in that: A second pointer (19) is vertically fixedly connected to the side of the sliding block (126) away from the fixed rod (123); the free end of the second pointer (19) slides through and is inserted into the inner wall of the sliding groove away from the fixed rod (123), and the free end of the second pointer (19) is close to the second scale.

6. The liquid affinity detection device for a hydrogel dressing according to claim 1, characterized in that: The depth of the insertion hole is equal to the length of the through hole, and the depth of the insertion hole is also equal to half the length of the core rod (6).

7. The liquid affinity detection device for a hydrogel dressing according to claim 5, characterized in that: A rotating ring (20) is rotatably sleeved on the shifting rod (11), and the shifting rod (11) closest to the fixed rod (123) is located at the end corresponding to one end of the clamping groove (122).

8. A detection method using the liquid affinity detection device of the hydrogel dressing as claimed in claim 7, characterized in that: The method comprises the following steps: Step 1: first press the T-shaped pull rod (10) and make all the core rods (6) fully inserted into the corresponding syringes (3); Step 2: rotating the screw rod (128) so that the screw rod (128) pulls the side of the strip plate (121) away from the fixed rod (123) to deflect upward through the movable block (127) and the slider (126), and observing the distance of the strip plate (121) deflecting upward through the second scale according to the amount of the prepared solution; Step 3: After the strip plate (121) is adjusted, the distances that the multiple insertion rods (7) can move along the corresponding insertion holes also increase or decrease in equal proportion, and then the connecting tube (4) is installed at the bottom of the multiple syringes (3); Step 4: Pull the T-shaped pull rod (10), thereby pulling the plurality of insertion rods (7) simultaneously through the pull plate (9) and the plurality of sleeves (8), thereby pulling the corresponding core rods (6) in turn through the plurality of insertion rods (7), thereby completing the demand for extracting solutions with proportionally increased volumes at one time; Step 5: Remove the connecting tube (4), insert the bottoms of the multiple syringes (3) into the multiple sampling tubes at the same time, and as the T-shaped pull rod (10) is pressed, the solutions in the multiple syringes (3) can enter the corresponding sampling tubes; Step 6: Add equal amounts of hydrogel dressing to different sampling tubes and test.

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