Sterile packaging method and device for medical knee joint packaging structure

Abstract

The invention belongs to the technical field of medical instrument packaging, and discloses a sterile packaging method and device for a medical knee joint packaging structure, and the sterile packaging method comprises the following steps: step 1, carrying out plasma cleaning on a blister tray, and cutting a cover material; 2, the knee joint assembly is accurately positioned in a cavity of the customized plastic uptake tray and covered with a cover material; 3, packaging is conducted through a heat sealing device; 4, the packaged packaging structure is subjected to quality detection; the heat sealing device comprises a workbench, a guide rail, a tray, a mounting seat, an air cylinder and a heat sealing plate, the guide rail and the mounting seat are fixedly mounted at the top end of the workbench, the tray is slidably mounted at the top end of the guide rail, a pushing assembly is arranged in the tray, the heat sealing plate is arranged above the tray, and the air cylinder is mounted at the top end of the heat sealing plate. After the medical knee joint packaging structure is packaged, the bottom plate moves upwards in the tray, the packaged knee joint packaging structure is pushed out and is convenient to take out, and the packaging efficiency can be improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical device packaging, and particularly relates to a sterile encapsulation method and device for a medical knee joint packaging structure. Background Art

[0002] The packaging structure of a medical knee joint refers to a systematic design for protecting, sterilizing, and storing artificial knee joint prostheses (such as femoral components, tibial trays, liners, etc.) and their supporting surgical tools, and it is necessary to ensure the sterility and integrity of the products during transportation, storage, and before surgery. Its core structure is usually divided into a sterile barrier layer (primary packaging), a protective layer (secondary packaging), and a transportation packaging (tertiary packaging);

[0003] In the production and processing link of the medical knee joint packaging structure, the sterile encapsulation device is the core link to ensure the safety and effectiveness of the products, and the heat sealing machine is one of the core devices to achieve sterile encapsulation. By heating and pressurizing, the blister tray (such as PETG material) is sealed with the breathable cover material (such as Tyvek) to ensure that the products maintain a sterile state after sterilization. The heat sealing machine is easy to operate, has a fast sealing speed and high sealing strength, and can effectively prevent the intrusion of microorganisms, thus ensuring the sterile state of the medical knee joint prosthesis;

[0004] During the process of product encapsulation, the blister tray needs to be placed inside a mold cavity that fits it and needs to conform to the shape of the mold cavity. However, traditional devices rely on manual methods for box taking operations, and this method often leads to inconvenient material taking and thus affects the efficiency of the entire encapsulation operation. Summary of the Invention

[0005] The purpose of the present invention is to provide a sterile encapsulation method and device for a medical knee joint packaging structure to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions: A sterile encapsulation method for a medical knee joint packaging structure includes the following steps:

[0007] Step 1: Perform plasma cleaning on the blister tray and cut the cover material;

[0008] Step 2: Accurately position the knee joint components in the customized blister tray cavity and cover the cover material;

[0009] Step 3: Perform encapsulation through a heat sealing device;

[0010] Step 4: Perform quality inspection on the encapsulated packaging structure.

[0011] A sterile encapsulation device for a medical knee joint packaging structure,

[0012] It includes a heat-sealing device, and the heat-sealing device includes a workbench, a guide rail, a tray, a mounting seat, a cylinder, and a heat-sealing plate. The top of the workbench is fixedly installed with a guide rail and a mounting seat. The top of the guide rail is slidably installed with a tray. A material-pushing component is arranged inside the tray. A heat-sealing plate is arranged above the tray. The top of the heat-sealing plate is installed with a cylinder, and the cylinder is arranged on the top of the mounting seat;

[0013] The material-pushing component includes a bottom plate arranged inside the tray. The side wall of the bottom plate is fixedly installed with first sliders. A plurality of first sliders are evenly installed. The inner wall of one of the first sliders is threadedly connected with a first threaded rod, and the inner walls of the other first sliders are slidably installed with first limiting shafts, and the first limiting shafts are fixedly installed inside the tray;

[0014] The bottom end of the first threaded rod is fixedly installed with a first gear. A first rack plate is meshed and connected to one side of the first gear. One side of the first rack plate is fixedly installed with a magnetic block. A magnetic plate is arranged on one side of the magnetic block, and the magnetic plate is fixedly installed on the side wall of the mounting seat.

[0015] As a further technical solution of the present invention, the magnetic block is slidably installed inside a chute, and the chute is opened inside the tray.

[0016] As a further technical solution of the present invention, a first spring is arranged on one side of the magnetic block, and the first spring is installed inside the chute.

[0017] As a further technical solution of the present invention, a cutter is arranged on the top of the tray. Both sides of the cutter are fixedly connected with second sliders. A second threaded rod and a second limiting shaft are respectively installed inside the two second sliders. The second threaded rod is threadedly connected with the second slider. One end of the second threaded rod is fixedly installed with a second gear. A second rack plate is meshed and connected to the bottom end of the second gear, and the second rack plate is fixedly installed on the top end of the first rack plate.

[0018] As a further technical solution of the present invention, the second slider is slidably installed on the top of the tray.

[0019] As a further technical solution of the present invention, the inner diameter of the inner wall of the first gear is ten N times the inner diameter of the inner wall of the second gear, and N is a positive integer.

[0020] As a further technical solution of the present invention, a receiving cavity is arranged below the cutter, and the receiving cavity is opened on the top of the tray.

[0021] As a further technical solution of the present invention, a first convex block is fixedly installed at the top end of the cutting knife, a fixing plate is arranged above the cutting knife, the fixing plate is fixedly installed on the top of the tray, a second convex block is slidably installed inside the fixing plate, and a second spring is arranged between the second convex block and the fixing plate.

[0022] As a further technical solution of the present invention, the first convex blocks and the second convex blocks are both evenly distributed and are staggered with each other.

[0023] The beneficial effects of the present invention are as follows:

[0024] 1. Through the setting of the material pushing component of the present invention, after the medical knee joint packaging structure is encapsulated, the tray moves to the side away from the heat sealing plate. The movement of the tray drives the movement of the magnetic block. When the magnetic block moves to one side of the magnetic plate, the two are magnetically connected and the magnetic block cannot move. At this time, the tray continues to move, causing the first gear to move and engage with the first rack plate to rotate. The rotation of the first gear drives the rotation of the first threaded rod. The rotation of the first threaded rod drives the movement of the first slider. The movement of the first slider drives the movement of the bottom plate, causing the bottom plate to move upward in the tray and pushing out the encapsulated knee joint packaging structure, which is convenient for taking out and helps improve the encapsulation efficiency.

[0025] 2. Through the setting of the cutting knife of the present invention, after encapsulation, when the magnetic block moves to one side of the magnetic plate, the two are magnetically connected and the magnetic block cannot move. At this time, the tray continues to move, causing the second gear to move and engage with the second rack plate to rotate. The rotation of the second gear drives the rotation of the second threaded rod. The rotation of the second threaded rod drives the movement of the second slider. The movement of the second slider drives the movement of the cutting knife, causing the cutting knife to move above the bottom plate. When the bottom plate moves upward to push out the encapsulated knee joint packaging structure, the edge of the packaging structure moves upward and contacts the cutting knife, and the cutting knife cuts out a tear corner for it, improving the convenience of use.

[0026] 3. Through the setting of the first convex block and the second convex block of the present invention, when the cutting knife resets and slides towards the side of the fixing plate, when the first convex block contacts the second convex block, the second convex block produces a knocking effect on the first convex block through the elastic potential energy of the second spring, which helps the waste material of the tear corner inside the cutting knife to separate from it. Description of the Drawings

[0027] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 is a schematic cross-sectional view of the overall structure of the present invention;

[0029] Figure 3 For the present invention Figure 2 is an enlarged schematic view of the structure at A in;

[0030] Figure 4 Schematic cross-sectional view of the XX structure of the present invention;

[0031] Figure 5 Schematic view of the XX structure of the present invention;

[0032] Figure 6 Schematic view of the XX structure of the present invention;

[0033] Figure 7 Of the present invention Figure 2 Enlarged schematic view of the structure at position A in;

[0034] Figure 8 Schematic cross-sectional view of the XX structure of the present invention;

[0035] Figure 9 Of the present invention Figure 2 Enlarged schematic view of the structure at position A in.

[0036] In the figure: 1, workbench; 2, guide rail; 3, tray; 4, bottom plate; 5, mounting seat; 6, cylinder; 7, heat-sealing plate; 8, first slider; 9, first threaded rod; 10, first gear; 11, first rack plate; 12, magnetic block; 13, magnetic plate; 14, first spring; 15, cutter; 16, second slider; 17, second threaded rod; 18, second gear; 19, second rack plate; 20, first convex block; 21, second convex block; 22, second spring; 23, fixing plate; 24, first limiting shaft; 25, second limiting shaft; 26, chute; 27, accommodating cavity. Detailed implementation manners

[0037] 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.

[0038] Embodiment 1

[0039] As Figure 1 shown, in the embodiment of the present invention, a sterile encapsulation method for a medical knee joint packaging structure includes the following steps:

[0040] Step 1: Perform plasma cleaning on the blister tray and cut the cover material;

[0041] Step 2: Accurately position the knee joint assembly in the cavity of the customized blister tray and cover the cover material;

[0042] Step 3: Perform encapsulation through a heat-sealing device;

[0043] Step 4: Conduct quality inspection on the encapsulated packaging structure.

[0044] The blister tray is made of PETG / PP, and the cover material is Tyvek / medical dialysis paper.

[0045] Embodiment 2

[0046] As Figures 2 to 9 shown, in the embodiment of the present invention, a sterile encapsulation device for a medical knee joint packaging structure

[0047] includes a heat sealing device, which includes a workbench 1, a guide rail 2, a tray 3, a mounting seat 5, a cylinder 6 and a heat sealing plate 7. A guide rail 2 and a mounting seat 5 are fixedly installed at the top of the workbench 1. A tray 3 is slidably installed at the top of the guide rail 2. A pushing component is arranged inside the tray 3. A heat sealing plate 7 is arranged above the tray 3. A cylinder 6 is installed at the top of the heat sealing plate 7. The cylinder 6 is arranged on the top of the mounting seat 5;

[0048] The pushing component includes a bottom plate 4 arranged inside the tray 3. A first slider 8 is fixedly installed on the side wall of the bottom plate 4. A plurality of first sliders 8 are evenly installed. The inner wall of one of the first sliders 8 is threadedly connected with a first threaded rod 9. The inner walls of the other first sliders 8 are slidably installed with a first limiting shaft 24. The first limiting shaft 24 is fixedly installed inside the tray 3;

[0049] The bottom end of the first threaded rod 9 is fixedly installed with a first gear 10. A first rack plate 11 is meshed and connected to one side of the first gear 10. A magnetic block 12 is fixedly installed on one side of the first rack plate 11. A magnetic plate 13 is arranged on one side of the magnetic block 12. The magnetic plate 13 is fixedly installed on the side wall of the mounting seat 5.

[0050] Through the setting of the pushing component, after the medical knee joint packaging structure is encapsulated, the tray 3 moves to the side away from the heat sealing plate 7. The movement of the tray 3 drives the movement of the magnetic block 12. When the magnetic block 12 moves to one side of the magnetic plate 13, the two are magnetically connected and the magnetic block 12 cannot move. At this time, the tray 3 continues to move, causing the first gear 10 to move and mesh with the first rack plate 11 to rotate. The rotation of the first gear 10 drives the rotation of the first threaded rod 9. The rotation of the first threaded rod 9 drives the movement of the first slider 8. The movement of the first slider 8 drives the movement of the bottom plate 4, causing the bottom plate 4 to move upward inside the tray 3, pushing out the encapsulated knee joint packaging structure, which is convenient for taking out and helps improve the encapsulation efficiency.

[0051] As Figure 6 shown, the magnetic block 12 is slidably installed inside a chute 26, and the chute 26 is opened inside the tray 3.

[0052] The movement distance of the magnetic block 12 is limited by the chute 26.

[0053] As Figure 6 and Figure 7 shown, a first spring 14 is provided on one side of the magnetic block 12, and the first spring 14 is installed inside the sliding groove 26.

[0054] When the magnetic block 12 is magnetically connected to the magnetic plate 13, the tray 3 continues to move to cause the first spring 14 to be deformed and store elastic potential energy. When the tray 3 moves toward the side close to the heat-sealing plate 7, after the magnetic block 12 is separated from the magnetic plate 13, the elastic potential energy is released through the first spring 14 to move the magnetic block 12 back to its original position, so that the bottom plate 4 moves downward and returns to the tray 3.

[0055] As Figures 2 to 9 shown, a cutter 15 is provided at the top of the tray 3. Both sides of the cutter 15 are fixedly connected with second sliders 16. A second threaded rod 17 and a second limiting shaft 25 are respectively installed inside the two second sliders 16. The second threaded rod 17 is threadedly connected with the second slider 16. One end of the second threaded rod 17 is fixedly installed with a second gear 18. The bottom end of the second gear 18 is meshed with a second rack plate 19, and the second rack plate 19 is fixedly installed at the top of the first rack plate 11.

[0056] After encapsulation, when the magnetic block 12 moves to one side of the magnetic plate 13, the two are magnetically connected and the magnetic block 12 cannot move. At this time, the tray 3 continues to move to cause the second gear 18 to move and mesh with the second rack plate 19 to rotate. The rotation of the second gear 18 drives the rotation of the second threaded rod 17. The rotation of the second threaded rod 17 drives the movement of the second slider 16. The movement of the second slider 16 drives the movement of the cutter 15, so that the cutter 15 moves above the bottom plate 4. When the bottom plate 4 moves upward to push out the encapsulated knee joint packaging structure, the edge of the packaging structure moves upward and contacts the cutter 15, and the cutter 15 cuts out a tear corner for it, improving the convenience of use.

[0057] As Figures 2 to 7 shown, the second slider 16 is slidably installed on the top of the tray 3.

[0058] As Figure 8 shown, the inner wall diameter of the first gear 10 is ten N times the inner wall diameter of the second gear 18, and N is a positive integer.

[0059] Through the gear ratio between the first gear 10 and the second gear 18, the rotation speed of the second gear 18 is faster than the rotation speed of the first gear 10, so that the cutter 15 moves above the bottom plate 4 first to ensure the reliability when cutting the tear corner.

[0060] As Figure 4 and Figure 5 shown, a receiving cavity 27 is provided below the cutter 15, and the receiving cavity 27 is opened on the top of the tray 3.

[0061] When the cutting knife 15 resets, the accommodating cavity 27 receives the tear-off corner waste cut inside the cutting knife 15.

[0062] As Figure 4 and Figure 5 shown, a first convex block 20 is fixedly installed at the top end of the cutting knife 15. Above the cutting knife 15, there is a fixing plate 23. The fixing plate 23 is fixedly installed on the top of the tray 3. A second convex block 21 is slidably installed inside the fixing plate 23. A second spring 22 is arranged between the second convex block 21 and the fixing plate 23.

[0063] When the cutting knife 15 resets and slides towards one side of the fixing plate 23, when the first convex block 20 contacts the second convex block 21, the elastic potential energy of the second spring 22 causes the second convex block 21 to produce a knocking effect on the first convex block 20, which helps the tear-off corner waste inside the cutting knife 15 to separate from it.

[0064] As Figure 4 and Figure 5 shown, both the first convex block 20 and the second convex block 21 are evenly distributed and are staggered.

[0065] Working principle and usage process:

[0066] When the medical knee joint packaging structure is encapsulated, first place the knee joint assembly in the cavity of the customized blister tray 3, then cover the Tyvek cover material, and place the blister tray 3 in the tray 3. Move the tray 3 to below the heat-sealing plate 7, and then drive the heat-sealing plate 7 to press down through the cylinder 6 for heat-sealing;

[0067] After encapsulation, move the tray 3 to the side away from the heat-sealing plate 7. The movement of the tray 3 drives the movement of the magnetic block 12. When the magnetic block 12 moves to one side of the magnetic plate 13, they are magnetically connected and the magnetic block 12 cannot move. At this time, the tray 3 continues to move, causing the first gear 10 to move and mesh with the first rack plate 11 to rotate, and the second gear 18 to move and mesh with the second rack plate 19 to rotate. The rotation of the second gear 18 drives the rotation of the second threaded rod 17. The rotation of the second threaded rod 17 drives the movement of the second slider 16. The movement of the second slider 16 drives the movement of the cutting knife 15, making the cutting knife 15 move above the bottom plate 4;

[0068] At the same time, the rotation of the first gear 10 drives the rotation of the first threaded rod 9. The rotation of the first threaded rod 9 drives the movement of the first slider 8. The movement of the first slider 8 drives the movement of the bottom plate 4, causing the bottom plate 4 to move upward inside the tray 3, pushing out the encapsulated medical knee joint packaging structure. When the packaging structure moves upward and contacts the cutting knife 15, the cutting knife 15 cuts out a tear-off corner for it, and finally take it out.

[0069] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Aseptic encapsulation method for a medical knee joint packaging structure, characterized in that, It includes the following steps: Step 1: Plasma clean the blister tray and cut the cover material; Step 2: Accurately position the knee joint assembly in the customized blister tray cavity and cover it with the cover material; Step 3: Seal it through a heat sealing device; Step 4: Conduct quality inspection on the packaged structure after sealing.

2. A sterile encapsulation device for a medical knee joint packaging structure, which method is applicable to the sterile encapsulation method for a medical knee joint packaging structure described in the above-mentioned claim 1, including a heat-sealing device, characterized in that: The heat sealing device includes a workbench (1), a guide rail (2), a tray (3), a mounting seat (5), a cylinder (6) and a heat sealing plate (7). At the top of the workbench (1), a guide rail (2) and a mounting seat (5) are fixedly installed. On the top of the guide rail (2), a tray (3) is slidably installed. Inside the tray (3), a pushing component is arranged. Above the tray (3), a heat sealing plate (7) is arranged. At the top of the heat sealing plate (7), a cylinder (6) is installed. The cylinder (6) is arranged on the top of the mounting seat (5); The pushing component includes a bottom plate (4) arranged inside the tray (3). On the side wall of the bottom plate (4), a first slider (8) is fixedly installed. A plurality of first sliders (8) are evenly installed. Inside the inner wall of one of the first sliders (8), a first threaded rod (9) is threadedly connected. Inside the inner walls of the other first sliders (8), a first limiting shaft (24) is slidably installed. The first limiting shaft (24) is fixedly installed inside the tray (3); At the bottom end of the first threaded rod (9), a first gear (10) is fixedly installed. On one side of the first gear (10), a first rack plate (11) is meshed and connected. On one side of the first rack plate (11), a magnetic block (12) is fixedly installed. On one side of the magnetic block (12), a magnetic plate (13) is arranged. The magnetic plate (13) is fixedly installed on the side wall of the mounting seat (5).

3. The aseptic encapsulation device for a medical knee joint packaging structure according to claim 2, wherein: The magnetic block (12) is slidably installed inside a chute (26). The chute (26) is opened inside the tray (3).

4. The aseptic packaging device for a medical knee joint packaging structure according to claim 2, characterized in that: On one side of the magnetic block (12), a first spring (14) is arranged. The first spring (14) is installed inside the chute (26).

5. The aseptic encapsulation device for a medical knee joint packaging structure according to claim 2, characterized in that: At the top of the tray (3), a cutter (15) is arranged. On both sides of the cutter (15), second sliders (16) are fixedly connected. Inside the two second sliders (16), a second threaded rod (17) and a second limiting shaft (25) are respectively installed. The second threaded rod (17) is threadedly connected with the second slider (16). At one end of the second threaded rod (17), a second gear (18) is fixedly installed. At the bottom end of the second gear (18), a second rack plate (19) is meshed and connected. The second rack plate (19) is fixedly installed on the top end of the first rack plate (11).

6. The aseptic encapsulation device for a medical knee joint packaging structure according to claim 5, characterized in that: The second slider (16) is slidably installed on the top of the tray (3).

7. The aseptic encapsulation device for a medical knee joint packaging structure according to claim 2, characterized in that: The inner wall diameter of the first gear (10) is ten times the inner wall diameter of the second gear (18), and N is a positive integer.

8. The aseptic encapsulation device for a medical knee joint packaging structure according to claim 5, characterized in that: Below the cutter (15), a receiving cavity (27) is arranged. The receiving cavity (27) is opened on the top of the tray (3).

9. The aseptic packaging device for a medical knee joint packaging structure according to claim 8, wherein: A first convex block (20) is fixedly installed at the top end of the cutting knife (15). A fixing plate (23) is arranged above the cutting knife (15). The fixing plate (23) is fixedly installed on the top of the tray (3). A second convex block (21) is slidably installed inside the fixing plate (23). A second spring (22) is arranged between the second convex block (21) and the fixing plate (23).

10. The aseptic encapsulation device for a medical knee joint packaging structure according to claim 9, characterized in that: The first convex blocks (20) and the second convex blocks (21) are both evenly distributed and are staggered with each other.

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