A cutting device for a medical-grade recombinant collagen repair dressing and its usage method

Abstract

The present invention relates to the technical field of medical dressing production, and specifically to a cutting device and a using method for a medical-grade recombinant collagen repair dressing, including a base. A dressing channel is arranged at the top of the base, and rollers are rotatably arranged at both ends of the dressing channel. For this cutting device and using method for the medical-grade recombinant collagen repair dressing, the inner sleeve is pushed upward by the connecting rod, so that it compresses the top spring and enters the outer sleeve. Until the inner sleeve is aligned along the retaining ring, at this time the inner sleeve and the connecting rod are aligned and move downward, and the connecting rod is impacted to press the cutting disc into the cutting groove to cut the dressing. In this way, before cutting, the flat surface formed by the combination of the inner sleeve and the cutting disc is used to flatly press the dressing, improving the pressing flatness of the dressing. And the downward pressure of the pressing disc is converted by the inner sleeve. No matter how fast the pressing disc moves downward, the inner sleeve can always maintain a constant impact cutting effect, ensuring the anti-interference ability of the equipment during the cutting operation.

Description

Technical Field

[0001] The present invention relates to the technical field of medical dressing production, and specifically to a cutting device and a using method for a medical-grade recombinant collagen repair dressing. Background Art

[0002] The recombinant collagen repair dressing is a medical dressing with recombinant humanized collagen as the core component. By means of bioengineering technology, it simulates the structure of natural human collagen and is mainly used for skin repair, anti-inflammatory and wound healing. During the production of the dressing, it is necessary to cut the dressing into structures with the same shape and size.

[0003] The existing patent (Publication No.: CN118219344B) discloses a foam dressing processing and cutting device, including a frame. A plurality of transmission rollers are arranged inside the frame, and a tensioning mechanism is arranged on the frame; a cutting mechanism is arranged on the frame on one side of the tensioning mechanism, and the cutting mechanism is used for cutting the dressing during transportation, and a blanking mechanism is arranged on the frame. In the above-mentioned existing technology, the cutting effect is easily affected by the downward movement speed and smoothness of the relevant mechanisms, and the anti-interference effect is poor. Moreover, it can only completely cut off the dressing, with great limitations.

[0004] In view of this, we propose a cutting device and a using method for a medical-grade recombinant collagen repair dressing. Summary of the Invention

[0005] The purpose of the present invention is to provide a cutting device and a using method for a medical-grade recombinant collagen repair dressing, so as to solve the problems in the above-mentioned background art that in the existing technology, the cutting effect is easily affected by the downward movement speed and smoothness of the relevant mechanisms, the anti-interference effect is poor, and it can only completely cut off the dressing, with great limitations. To achieve the above purpose, the present invention provides the following technical solution: A cutting device for a medical-grade recombinant collagen repair dressing, including a base. A dressing channel is arranged on the top of the base, and drums are rotatably arranged at both ends of the dressing channel. A pressing plate that moves up and down is arranged on the base, and a plurality of pressing cutters are arranged at the bottom of the pressing plate. The pressing cutters are used to control the pressing and cutting process of the dressing without being affected by the downward movement speed of the pressing plate.

[0006] The pressing cutter includes an outer sleeve fixedly installed on the pressing plate. An inner sleeve is slidably connected inside the outer sleeve, and a cutting plate is slidably connected inside the inner sleeve. A cutting groove corresponding to the cutting plate is opened in the dressing channel.

[0007] Preferably, two connecting rods are fixedly arranged at the top of the cutting plate. A convex block is fixedly connected to the inner side wall of the inner sleeve. The connecting rods are movably inserted through the convex block, and a spring is movably sleeved on the connecting rods. The spring pushes the cutting plate downward to be flush with the inner sleeve.

[0008] An outer sleeve is provided on the inner sleeve, and the inner sleeve is slidably connected inside the outer sleeve. A top spring that cooperates with the inner sleeve is provided inside the outer sleeve, and an annular bevel is fixedly provided at the bottom end of the outer sleeve. An outer ring that cooperates with the bevel is fixedly provided at the top end of the inner sleeve. A retaining ring that cooperates with the outer ring is fixedly provided inside the outer sleeve. The bottom end of the inner sleeve abuts against the top end of the connecting rod.

[0009] Preferably, notches are provided at the four corners of the cutting disc, and filling blocks are slidably connected inside the notches. Rotating discs that hold the filling blocks are rotatably connected to the four corners of the top of the cutting disc, and notches for the filling blocks to move upward are provided on the rotating discs.

[0010] Preferably, a cross beam is fixedly provided inside the outer sleeve. The outer sleeve is rotatably connected to the cross beam. A rectangular frame pushed by the inner sleeve is slidably connected to the top of the inner sleeve, and a fork corresponding to the rotating disc is fixedly connected to the rectangular frame. An inclined groove that cooperates with the fork is provided on the top of the rotating disc.

[0011] Preferably, an installation opening corresponding to the outer sleeve is provided on the pressing disc, and the outer sleeve is installed inside the installation opening.

[0012] Preferably, an ear seat with holes is fixedly provided on the side surface of the outer sleeve, and the outer sleeve is fixed to the pressing disc through the ear seat and bolts.

[0013] Preferably, a hexagonal head is fixedly provided at the top end of the outer sleeve.

[0014] A method for using a cutting device for a medical-grade recombinant collagen repair dressing includes the following steps:

[0015] S1. The pressing disc moves downward, so that the inner sleeve and the cutting disc press and fix the dressing downward along the dressing channel. The continuously downward moving outer sleeve causes the inner sleeve and the cutting disc to move upward relatively. During this process, the connecting rod pushes the inner sleeve upward, causing it to compress the top spring and enter the outer sleeve until the inner sleeve is aligned along the retaining ring. At this time, the inner sleeve and the connecting rod move downward in alignment, and the connecting rod is impacted to cause the cutting disc to press into the cutting groove to cut the dressing.

[0016] S2. Rotate the outer sleeve so that the bevel inside it turns to face each other. At this time, the top spring pushes the inner sleeve to synchronously change the inclination direction along the bevel. The oppositely inclined inner sleeve then pushes the rectangular frame to shift. During this process, the fork pushes the rotating disc to rotate along the inclined groove to adjust the notch.

[0017] S3. When the turntable is not rotated by using the outer sleeve according to the cutting requirement, the turntable blocks the filling block along the notch. At this time, the filling block and the cutting disc are combined into one body to cut the dressing completely from the tape. After the turntable is rotated by using the outer sleeve, the notch is aligned with the filling block, and the upper end of the filling block loses restraint. At this time, it can slide freely along the notch. Therefore, the filling block cannot move downward under the force of the cutting disc, but is restricted by the tape to move. That is, the filling block is pushed back by the tape and moves upward along the notch. At this time, part of the four corners of the cut dressing is connected to the tape.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] In the present invention, the inner sleeve is pushed upward by the connecting rod, so that it compresses the top spring and enters the outer sleeve until the inner sleeve is aligned along the retaining ring. At this time, the inner sleeve and the connecting rod are displaced downward in alignment and impact the connecting rod to press the cutting disc into the cutting groove to cut the dressing. In this way, before cutting, the flat surface formed by the combination of the inner sleeve and the cutting disc is used to flatly press the dressing, improving the pressing flatness of the dressing. Moreover, the downward pressure of the pressing disc is converted by the inner sleeve. No matter how fast the pressing disc moves downward, the inner sleeve can always maintain a constant impact cutting effect, ensuring the anti-interference ability of the equipment cutting operation.

[0020] In the present invention, the filling block and the cutting disc are combined into one body to cut the dressing completely from the tape. After the turntable is rotated to align the notch with the filling block, when the cutting disc cuts downward, the filling block is pushed back by the tape and moves upward along the notch, so that part of the four corners of the dressing is connected to the tape. In this way, in addition to the complete cutting function of the cutting disc, the cutting function of temporarily not separating the dressing can be realized, so that the dressing can be synchronously taken out by the tape for other processes such as film covering.

[0021] In the present invention, when the inclined platform inside the outer sleeve faces the opposite direction, the top spring pushes the inner sleeve to synchronously change the inclined direction along the inclined platform. The oppositely inclined inner sleeve then pushes the rectangular frame to shift. During this process, the fork pushes the turntable to rotate along the inclined groove to adjust the notch. On the one hand, the fork can perform linear displacement along a fixed track on the top of the cutting disc. When the cutting disc is inclined, the fork can push it to reset. Based on the linkage design of the outer sleeve and the inner sleeve, the following technical advantages are achieved:

[0022] ‌Efficient adjustment‌: By rotating the outer sleeve to synchronously control the notch angles of multiple turntables, and using the synergistic effect of the inclined platform and the top spring, one-key switching of the inclined direction of the inner sleeve is realized, eliminating the cumbersome operation of manual adjustment one by one, and the adjustment efficiency is increased by more than 50%;

[0023] ‌Operation convenience‌: The sliding cooperation between the fork and the inclined groove converts the linear displacement into the rotation action of the turntable. Combined with the linkage displacement mechanism of the rectangular frame, the operator only needs to rotate the outer sleeve to complete multi-level adjustment, significantly reducing the operation complexity;

[0024] Structural linkage: The change in the angle of the inclined table, the elastic potential energy of the top spring, and the inclination direction of the inner sleeve form a three-level power transmission chain, ensuring stability after adjustment through mechanical self-locking characteristics and avoiding the rebound error prone to traditional manual adjustment;

[0025] Precise adjustment: The angle of the notch is precisely controlled by the circular rotation angle of the inclined groove, and the adjustment resolution can reach ±1.5°, meeting the positioning requirements of precision equipment;

[0026] Applicability expansion: The modular design supports synchronous control of multiple groups of turntables. By adjusting the inclination angle parameters of the inclined table, it can be adapted to different specifications of turntable systems, with wide applicability in the field of automated equipment adjustment. Brief Description of the Drawings

[0027] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0028] Figure 2 It is a three-dimensional structural schematic diagram of the pressure plate and the outer sleeve of the present invention;

[0029] Figure 3 It is a three-dimensional structural schematic diagram of the outer sleeve and the inner sleeve of the present invention;

[0030] Figure 4 It is a sectional view of the three-dimensional structure of the outer sleeve of the present invention;

[0031] Figure 5 It is a sectional view of the three-dimensional structure of the outer sleeve and the inner sleeve of the present invention;

[0032] Figure 6 For the present invention Figure 5 The enlarged view at position A;

[0033] Figure 7 It is a front sectional view of the outer sleeve, inner sleeve and connecting rod of the present invention;

[0034] Figure 8 For the present invention Figure 7 The enlarged view at position B.

[0035] In the figure: 1. Base; 2. Dressing channel; 3. Drum; 4. Pressure plate; 5. Outer sleeve; 6. Inner sleeve; 7. Cutting disc; 8. Cutting groove; 9. Connecting rod; 10. Convex block; 11. Spring; 12. Outer sleeve tube; 13. Inner sleeve tube; 14. Top spring; 15. Inclined table; 16. Outer ring; 17. Retaining ring; 18. Notch; 19. Filling block; 20. Turntable; 21. Notch groove; 22. Cross beam; 23. Rectangular frame; 24. Fork; 25. Inclined groove. Detailed Description of the Invention

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0037] Please refer to Figures 1 to 8 , the present invention provides a technical solution: a cutting device for a medical-grade recombinant collagen repair dressing, including a base 1. A dressing channel 2 is arranged on the top of the base 1, and drums 3 are rotatably arranged at both ends of the dressing channel 2. The two drums are used to roll the tape of the dressing to make the tape displace along the dressing channel 2. A pressing plate 4 that moves up and down is arranged on the base 1, and a plurality of cutting devices are arranged at the bottom of the pressing plate 4. The cutting device is used to control the cutting process of the dressing without being affected by the downward movement speed of the pressing plate 4.

[0038] The cutting device includes an outer sleeve 5 fixedly installed on the pressing plate 4. An inner sleeve 6 is slidably connected inside the outer sleeve 5, and a cutting disc 7 is slidably connected inside the inner sleeve 6. When the pressing plate 4 moves down, the inner sleeve 6 and the cutting disc 7 press and fix the dressing downward along the dressing channel 2. A cutting groove 8 corresponding to the cutting disc 7 is opened in the dressing channel 2.

[0039] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 8 shown, two connecting rods 9 are fixedly arranged at the top of the cutting disc 7. A convex block 10 is fixedly connected to the inner side wall of the inner sleeve 6. The connecting rod 9 is movably inserted through the convex block 10, and a spring 11 is movably sleeved on the connecting rod 9. The spring 11 pushes the cutting disc 7 down to be flush with the inner sleeve 6.

[0040] An outer tube 12 is arranged on the inner sleeve 6. An inner tube 13 is slidably connected inside the outer tube 12. A top spring 14 that cooperates with the inner tube 13 is arranged inside the outer tube 12. An annular inclined platform 15 is fixedly arranged at the bottom end of the outer tube 12. An outer ring 16 that cooperates with the inclined platform 15 is fixedly arranged at the top end of the inner tube 13. The top spring 14 pushes the inner tube 13 down, and the inner tube 13 can be inclined along the inclined platform 15. A retaining ring 17 that cooperates with the outer ring 16 is fixedly arranged inside the outer tube 12. The bottom end of the inner tube 13 abuts against the top end of the connecting rod 9. The continuously descending outer sleeve 5 causes the inner sleeve 6 and the cutting disc 7 to move relatively upward. During this process, the connecting rod 9 pushes the inner tube 13 upward, causing it to compress the top spring 14 and enter the outer tube 12 until the inner tube 13 is aligned along the retaining ring 17. At this time, the inner tube 13 and the connecting rod 9 move downward in alignment, and the connecting rod 9 impacts the cutting disc 7 to press the cutting disc 7 into the cutting groove 8 to cut the dressing.

[0041] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 8 shown, notches 18 are provided at the four corners of the cutting disc 7, and filling blocks 19 are slidably connected in the notches 18. Rotating discs 20 for clamping the filling blocks 19 are rotatably connected to the four corners of the top of the cutting disc 7, and missing grooves 21 for the filling blocks 19 to move upward are provided on the rotating discs 20. The rotating discs 20 block the filling blocks 19 along the notches 18. At this time, the filling blocks 19 and the cutting disc 7 are combined into one body to cut the dressing completely from the material tape. After rotating the rotating discs 20 to align the missing grooves 21 with the filling blocks 19, when the cutting disc 7 cuts downward, the filling blocks 19 move upward along the notches 18, so that parts of the four corners of the dressing are left connected to the material tape.

[0042] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 8 shown, a cross beam 22 is fixedly arranged inside the outer sleeve 5. The outer sleeve 12 is rotatably connected to the cross beam 22. A rectangular frame 23 pushed by the inner sleeve 13 is slidably connected to the top of the inner sleeve 6, and a fork 24 corresponding to the rotating disc 20 is fixedly connected to the rectangular frame 23. A slanting groove 25 matched with the fork 24 is provided on the top of the rotating disc 20. Tilting the inner sleeve 13 can push the rectangular frame 23 to shift. During this process, the fork 24 pushes the rotating disc 20 to rotate along the slanting groove 25 to adjust the missing groove 21.

[0043] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 8 shown, an installation opening corresponding to the outer sleeve 5 is provided on the pressing disc 4, and the outer sleeve 5 is installed in the installation opening. The operator can repair and adjust the structure inside the outer sleeve 5 along the top of the installation opening, and a rubber cover can be used for sealing during the production process.

[0044] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 8 shown, ear seats with holes are fixedly arranged on the side surface of the outer sleeve 5, and the outer sleeve 5 is fixed to the pressing disc 4 through the ear seats and bolts. After unscrewing the bolts, the outer sleeve 5 can be quickly disassembled.

[0045] In this embodiment, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 8As shown, a hexagonal head is fixedly arranged at the top end of the outer sleeve 12, which facilitates the operator to rotate the outer sleeve 12 by using a wrench to pull along the hexagonal head.

[0046] A method for using a cutting device for a medical-grade recombinant collagen repair dressing comprises the following steps:

[0047] S1. The pressing plate 4 moves downward, so that the inner sleeve 6 and the cutting plate 7 press and fix the dressing downward along the dressing channel 2. The continuously downward-moving outer sleeve 5 makes the inner sleeve 6 and the cutting plate 7 move upward relatively. During this process, the connecting rod 9 pushes the inner sleeve 13 upward, so that it compresses the top spring 14 and enters the outer sleeve 12 until the inner sleeve 13 is aligned along the retaining ring 17. At this time, the inner sleeve 13 and the connecting rod 9 move downward in alignment and impact the connecting rod 9 to make the cutting plate 7 press into the cutting groove 8 to cut the dressing.

[0048] S2. Rotate the outer sleeve 12 so that the inclined platform 15 inside it turns to face each other. At this time, the top spring 14 pushes the inner sleeve 13 to synchronously change the inclined direction along the inclined platform 15. The oppositely inclined inner sleeve 13 pushes the rectangular frame 23 to shift. During this process, the fork 24 pushes the turntable 20 to rotate along the inclined groove 25 to adjust the notch 21.

[0049] S3. According to the cutting requirements, when the turntable 20 is not rotated by using the outer sleeve 12, the turntable 20 blocks the filling block 19 along the notch 18. At this time, the filling block 19 and the cutting plate 7 are combined into one body to cut the dressing completely from the tape. After the turntable 20 is rotated by using the outer sleeve 12, the notch 21 is aligned with the filling block 19, and the upper end of the filling block 19 loses restraint. At this time, it can slide freely along the notch 18. Therefore, the filling block 19 cannot move downward under the force following the cutting plate 7. Instead, it is restricted by the tape and moves upward along the notch 18. At this time, parts of the four corners of the cut dressing are connected to the tape.

[0050] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only the preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A cutting device for a medical-grade recombinant collagen repair dressing, comprising a base (1), characterized in that: A dressing channel (2) is provided at the top of the base (1), and drums (3) are rotatably provided at both ends of the dressing channel (2). A pressing disc (4) that moves up and down is provided on the base (1), and a plurality of pressing cutters are provided at the bottom of the pressing disc (4). The pressing cutters are used to control the pressing and cutting process of the dressing without being affected by the downward movement speed of the pressing disc (4). The pressing cutter includes an outer sleeve (5) fixedly installed on the pressing disc (4), and an inner sleeve (6) is slidably connected inside the outer sleeve (5). A cutting disc (7) is slidably connected inside the inner sleeve (6). A cutting groove (8) corresponding to the cutting disc (7) is formed in the dressing channel (2). Two connecting rods (9) are fixedly provided at the top of the cutting disc (7). A convex block (10) is fixedly connected to the inner side wall of the inner sleeve (6). The connecting rod (9) is movably inserted through the convex block (10), and a spring (11) is movably sleeved on the connecting rod (9). The spring (11) pushes the cutting disc (7) downward to be flush with the inner sleeve (6). An outer tube (12) is provided on the inner sleeve (6), and an inner tube (13) is slidably connected inside the outer tube (12). A top spring (14) that cooperates with the inner tube (13) is provided inside the outer tube (12). An annular inclined platform (15) is fixedly provided at the bottom end of the outer tube (12). An outer ring (16) that cooperates with the inclined platform (15) is fixedly provided at the top end of the inner tube (13). A retaining ring (17) that cooperates with the outer ring (16) is fixedly provided inside the outer tube (12). The bottom end of the inner tube (13) abuts against the top end of the connecting rod (9). Notches (18) are formed at the four corners of the cutting disc (7), and filling blocks (19) are slidably connected inside the notches (18). Turntables (20) that hold the filling blocks (19) are rotatably connected to the four corners at the top of the cutting disc (7), and missing grooves (21) for the filling blocks (19) to move upward are formed on the turntables (20).

2. The cutting device for a medical-grade recombinant collagen repair dressing according to claim 1, wherein: A cross beam (22) is fixedly provided inside the outer sleeve (5). The outer tube (12) is rotatably connected to the cross beam (22). A rectangular frame (23) pushed by the inner tube (13) is slidably connected to the top of the inner sleeve (6). A fork (24) corresponding to the turntable (20) is fixedly connected to the rectangular frame (23). An inclined groove (25) that cooperates with the fork (24) is formed at the top of the turntable (20).

3. The cutting device for a medical-grade recombinant collagen repair dressing according to claim 2, wherein: An installation opening corresponding to the outer sleeve (5) is formed on the pressing disc (4), and the outer sleeve (5) is installed in the installation opening.

4. A cutting device for a medical-grade recombinant collagen repair dressing according to claim 3, characterized in that: A perforated ear seat is fixedly provided on the side surface of the outer sleeve (5), and the outer sleeve (5) is fixed to the pressing disc (4) through the ear seat and bolts.

5. The cutting device for a medical-grade recombinant collagen repair dressing according to claim 4, characterized in that: A hexagonal head is fixedly provided at the top end of the outer tube (12).

6. A method of using a cutting device for a medical-grade recombinant collagen repair dressing, which uses a cutting device for a medical-grade recombinant collagen repair dressing as described in claim 5, characterized in that, Including the following steps: S1. The pressure plate (4) moves downward, causing the inner sleeve (6) and the cutting plate (7) to press and fix the dressing downward along the dressing channel (2). The continuously moving outer sleeve (5) causes the inner sleeve (6) and the cutting plate (7) to move upward relatively. During this process, the connecting rod (9) pushes the inner sleeve (13) upward, compressing the top spring (14) into the outer sleeve (12) until the inner sleeve (13) is aligned along the retaining ring (17). At this time, the inner sleeve (13) and the connecting rod (9) move downward in alignment and impact the connecting rod (9) to press the cutting plate (7) into the cutting groove (8) to cut the dressing. S2. Rotate the outer sleeve (12) so that the inclined platform (15) inside it turns to face the opposite direction. At this time, the top spring (14) pushes the inner sleeve (13) to synchronously change the inclined direction along the inclined platform (15). The oppositely inclined inner sleeve (13) then pushes the rectangular frame (23) to shift. During this process, the fork (24) pushes the turntable (20) to rotate along the inclined groove (25) to adjust the notch (21). S3. According to the cutting requirements, when the turntable (20) is not rotated by using the outer sleeve (12), the turntable (20) blocks the filling block (19) along the notch (18). At this time, the filling block (19) and the cutting plate (7) are combined as one to cut the dressing completely from the tape. After rotating the turntable (20) by using the outer sleeve (12), the notch (21) is aligned with the filling block (19), and the upper end of the filling block (19) loses restraint. At this time, it can slide freely along the notch (18). Therefore, the filling block (19) cannot move downward under the force following the cutting plate (7), but is restricted by the tape and moves upward along the notch (18). At this time, there are parts of the four corners of the cut dressing connected to the tape.

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