A film pressing device

Abstract

The utility model relates to a biological material forming equipment field, concretely relates to a film pressing device. The utility model provides a film pressing device, including the pressing plate, the film carrier tray, the retaining structure and a plurality of gaskets, the film carrier tray is used for containing concentrated growth factor, the recess is seted up to the side of the film carrier tray of the pressing plate. The utility model is because the depth of the accommodating cavity seted up in a plurality of gaskets is different, therefore, can according to actual use demand, select the gasket with the accommodating cavity of suitable depth, through the detachable connection of gasket retaining structure to recess, put concentrated growth factor into the film carrier tray, the pressing plate gradually approaches the film carrier tray, because the distance of the pressing plate to the film carrier tray is not less than the distance of the gasket to the film carrier tray, therefore, can ensure that the gasket can contact the film carrier tray, when the gasket film carrier tray contacts, the thickness of concentrated growth factor is the depth of accommodating cavity, and the thickness of concentrated growth factor film is controllable, and the practicality is better.

Description

Technical Field

[0001] This utility model relates to the field of biomaterial molding equipment, specifically to a film pressing device. Background Technology

[0002] Concentrated growth factor (CGF), as a new generation of platelet concentrate, is a biomaterial rich in platelet-derived concentrated growth factor and vascular endothelial concentrated growth factor. It is often prepared into membranes for tissue regeneration. When the growth factor is taken out of the centrifuge tube, it is a nearly cylindrical strip with a thickness (diameter) of about 1 cm. It needs to be compressed into a membrane for use.

[0003] Currently, the existing simple compression film structure includes a carrier plate and a pressure plate. The concentrated growth factor is placed on the carrier plate, and the pressure plate is pressed down, so that the concentrated growth factor is squeezed into a film shape under the combined action of the carrier plate and the pressure plate.

[0004] However, the thickness of the film produced by the molding device mentioned above is mostly obtained by doctors based on their experience in applying force, and the thickness is difficult to control. Utility Model Content

[0005] (a) The problem that this utility model aims to solve is that the thickness of the film pressed out by the above-mentioned molding device is mostly obtained by doctors based on their experience in applying force, and the thickness is difficult to control.

[0006] (II) Technical Solution The present invention provides a film pressing device, including a pressing plate, a film carrier plate, a fixing structure and multiple gaskets; The carrier plate is used to hold concentrated growth factors. The pressure plate has a groove on the side near the carrier film disk, and the gasket is detachably connected to the groove through the fixing structure. Each gasket has a receiving cavity for accommodating the concentrated growth factor, and the depths of the multiple receiving cavities are different. The distance from the pressure plate to the carrier film tray is not less than the distance from the gasket to the carrier film tray.

[0007] According to one embodiment of the present invention, the retaining structure includes an elastic element, a limiting block, and a limiting groove; A sliding groove is provided on the side wall of the groove and communicates with it. The limiting block is slidably connected in the sliding groove, and the elastic element is connected between the limiting block and the bottom wall of the sliding groove. The limiting groove is formed on the outer side wall of the gasket, and the limiting groove is adapted to the limiting block.

[0008] According to one embodiment of the present invention, the limiting block includes a cylindrical portion and a hemispherical portion connected to each other; The sidewall of the cylindrical part is in contact with the inner sidewall of the sliding groove; The limiting groove is a hemispherical groove.

[0009] According to one embodiment of the present invention, an annular baffle is connected to the carrier film tray, and the inner diameter of the annular baffle is larger than the diameter of the pressure plate.

[0010] According to one embodiment of the present invention, a notch is provided on the annular retaining edge.

[0011] According to one embodiment of the present invention, the film pressing device further includes a force application mechanism; The force-applying mechanism is used to press the gasket onto the carrier film disc.

[0012] According to one embodiment of the present invention, the force-applying mechanism includes a rotating shaft, a first clamp body and a second clamp body, the first clamp body includes a first transmission rod and a first hand grip ring, and the second clamp body includes a second transmission rod and a second hand grip ring; One end of the first transmission rod is connected to the first hand ring, and the other end is connected to the pressure plate; One end of the second transmission rod is connected to the second hand ring, and the other end is connected to the carrier film disk; The first transmission rod and the second transmission rod are rotatably connected via the rotating shaft.

[0013] According to one embodiment of the present invention, a first connecting post is connected to the pressure plate, and a first ring is connected to the end of the first transmission rod away from the first hand ring, and the first ring is rotatably connected to the first connecting post.

[0014] According to one embodiment of the present invention, the rotating shaft is disposed between the pressure plate and the first hand ring.

[0015] According to one embodiment of the present invention, the elastic element is a spring.

[0016] The beneficial effects of this utility model are: Since the depths of the receiving cavities in the multiple gaskets are different, a gasket with a suitable depth of receiving cavity can be selected according to actual usage requirements. The gasket is then detachably connected to the groove through a fixing structure. The concentrated growth factor is placed on the carrier film tray, and the pressure plate gradually approaches the carrier film tray. Since the distance from the pressure plate to the carrier film tray is not less than the distance from the gasket to the carrier film tray, it can be ensured that the gasket can contact the carrier film tray. When the gasket and carrier film tray contact each other, the thickness of the concentrated growth factor is the depth of the receiving cavity. The thickness of the concentrated growth factor pressed into a film is controllable, resulting in better practicality. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 A perspective view of the film pressing device provided in an embodiment of this utility model; Figure 2 A three-dimensional disassembled schematic diagram of the pressure plate, carrier film plate, retaining structure and gasket provided in the embodiment of this utility model; Figure 3 Provided for the embodiments of this utility model Figure 2 Enlarged view of section A.

[0019] Icons: 1. Pressure plate; 11. Groove; 12. Sliding groove; 13. Arc groove; 2. Film carrier plate; 3. Fixing structure; 31. Elastic element; 32. Limiting block; 321. Columnar part; 322. Hemispherical part; 33. Limiting groove; 4. Gasket; 41. Receiving cavity; 5. Annular flange; 51. Notch; 6. Force application mechanism; 61. First transmission rod; 62. Second transmission rod; 63. Rotating shaft; 64. First hand ring; 65. Second hand ring; 66. First connecting post; 67. First ring. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] like Figures 1-3 As shown, one embodiment of the present invention provides a film pressing device, including a pressing plate 1, a film carrier plate 2, a fixing structure 3 and a plurality of gaskets 4; Carrier tray 2 is used to hold concentrated growth factors; The pressure plate 1 has a groove 11 on the side near the carrier film tray 2. The gasket 4 is detachably connected to the groove 11 through the fixing structure 3. Each gasket 4 has a receiving cavity 41 for accommodating concentrated growth factors. The depths of the multiple receiving cavities 41 are different. The distance from the pressure plate 1 to the film carrier 2 is not less than the distance from the gasket 4 to the film carrier 2.

[0022] Preferably, the distance from the pressure plate 1 to the film carrier 2 is equal to the distance from the gasket 4 to the film carrier 2.

[0023] Since the depths of the receiving cavities 41 in the multiple gaskets 4 are different, a gasket 4 with a suitable depth of receiving cavity 41 can be selected according to actual usage requirements. The gasket 4 is detachably connected to the groove 11 through the fixing structure 3. The concentrated growth factor is placed on the carrier film tray 2, and the pressure plate 1 gradually approaches the carrier film tray 2. Since the distance from the pressure plate 1 to the carrier film tray 2 is not less than the distance from the gasket 4 to the carrier film tray 2, it can be ensured that the gasket 4 can contact the carrier film tray 2. When the gasket 4 contacts the carrier film tray 2, the thickness of the concentrated growth factor pressed into a film is the depth of the receiving cavity 41. The thickness of the concentrated growth factor pressed into a film is controllable, which improves practicality.

[0024] According to one embodiment of the present invention, the film pressing device further includes a force application mechanism 6; The force-applying mechanism 6 is used to press the gasket 4 onto the carrier film tray 2.

[0025] According to one embodiment of the present invention, the force application mechanism 6 includes a rotating shaft 63, a first clamp body and a second clamp body, the first clamp body includes a first transmission rod 61 and a first hand ring 64, and the second clamp body includes a second transmission rod 62 and a second hand ring 65. One end of the first transmission rod 61 is connected to the first hand ring 64, and the other end is connected to the pressure plate 1; One end of the second transmission rod 62 is connected to the second hand ring 65, and the other end is connected to the film carrier plate 2. The rotating shaft 63 is located between the pressure plate 1 and the first hand ring 64, and the first transmission rod 61 and the second transmission rod 62 are rotatably connected through the rotating shaft 63.

[0026] Specifically, such as Figure 1 As shown, the first transmission rod 61 includes a first rod body and a second rod body connected together, forming a first angle between them. The ends of the first and second rod bodies that are far apart from each other are connected to a first circular ring 67 and a first hand-held ring 64, respectively. The second transmission rod 62 includes a third rod body and a fourth rod body connected together, forming a second angle between them. The ends of the third and fourth rod bodies that are far apart from each other are connected to a carrier film disk 2 and a second hand-held ring 65, respectively. The first angle and the second angle are obtuse angles.

[0027] The main body of the first and second clamps is made of 316L stainless steel. Both the first hand ring 64 and the second hand ring 65 are connected to rubber pads or have anti-slip textures to prevent slipping.

[0028] The doctor places a nearly cylindrical concentrated growth factor onto the carrier plate 2. The doctor places their thumb inside the second hand ring 65, and their middle and index fingers inside the first hand ring 64. The thumb and middle finger move closer together, changing the angle between the first and second transmission rods 61 and 62. This brings the pad 4 and the carrier plate 2 closer together, squeezing the concentrated growth factor until the pad 4 contacts the surface of the carrier plate 2. At this point, a noticeable increase in resistance can be felt. This is held for 5-10 seconds, then the pressure plate 1 and the carrier plate 2 are separated, yielding a sheet-like growth factor of the corresponding thickness. It should be noted that when the pad 4 and the carrier plate 2 are in contact, the pad 4 and the carrier plate 2 are parallel, meaning the bottom surface of the pad 4 is in contact with the top surface of the carrier plate 2.

[0029] According to one embodiment of the present invention, a first connecting post 66 is connected to the pressure plate 1. The first connecting post 66 includes a first post and a second post connected to each other with decreasing diameters. A threaded groove is opened on the pressure plate 1. The second post and the pressure plate 1 are screwed together. A first ring 67 is connected to the end of the first transmission rod 61 away from the first hand ring 64. The first ring 67 is rotatably connected to the second post in the first connecting post 66.

[0030] Optionally, the first ring 67 and the first connecting post 66 are fixedly connected.

[0031] Preferably, the multiple gaskets 4 have the same thickness and the receiving cavities 41 of the multiple gaskets 4 have different depths. The receiving cavity 41 is a groove structure with a bottom wall, and the thickness of the gasket 4 itself is greater than the depth of the receiving cavity 41 opened on it.

[0032] Specifically, gasket 4 can have at least five specifications, referred to as gasket one, gasket two, gasket three, gasket four, and gasket five, respectively. The depth of the receiving cavity 41 of gasket one is 0.5 mm, the depth of the receiving cavity 41 of gasket two is 1 mm, the depth of the receiving cavity 41 of gasket three is 1.5 mm, the depth of the receiving cavity 41 of gasket four is 2.5 mm, and the depth of the receiving cavity 41 of gasket five is 3 mm. It should be noted that gasket one, gasket two, gasket three, gasket four, and gasket five have the same thickness.

[0033] Optionally, multiple pressure plates 1 are provided, and the thickness of each of the multiple gaskets 4 is different. The depth of the groove 11 on each pressure plate 1 is the same as the thickness of its corresponding gasket 4. The receiving cavity 41 is a through channel. The thickness of the gasket 4 itself is the same as the depth of the receiving cavity 41 opened on the gasket 4. Without replacing the entire film pressing device, only the pressure plate 1 and the gasket 4 need to be replaced at the same time to press the concentrated growth factor into a film of appropriate thickness.

[0034] The axis of gasket 4 coincides with the axis of pressure plate 1.

[0035] It is important to know that the entire film pressing device can be disinfected and reused.

[0036] It should be noted that the carrier plate includes a main plate body and a filter screen. The filter screen is connected to the surface of the main plate body near the pressure plate 1. A cross-shaped positioning line can be set on the surface of the carrier plate to facilitate the determination of the position where the concentrated growth factor is placed.

[0037] According to one embodiment of the present invention, the retaining structure 3 includes an elastic element 31, a limiting block 32, and a limiting groove 33; A sliding groove 12 is provided on the side wall of the groove 11 and communicates with it. A limiting block 32 is slidably connected in the sliding groove 12, and an elastic element 31 is connected between the limiting block 32 and the bottom wall of the sliding groove 12. The limiting groove 33 is formed on the outer wall of the gasket 4, and the limiting groove 33 is adapted to the limiting block 32.

[0038] According to one embodiment of the present invention, the limiting block 32 includes a cylindrical portion 321 and a hemispherical portion 322 connected to each other; The sidewall of the cylindrical part 321 is in contact with the inner sidewall of the sliding groove 12; The limiting groove 33 is a hemispherical groove. Preferably, a circular groove is formed at the end of the cylindrical part 321 away from the hemispherical part 322, and one end of the elastic member 31 is connected to the bottom wall of the circular groove.

[0039] It is important to understand that the sidewall of each gasket 4 contacts the inner wall of the groove 11. During the process of inserting the gasket 4 into the groove 11, the hemispherical part 322 of the limiting block 32 is subjected to force, causing the cylindrical part 321 to slide within the sliding groove 12. The elastic element 31 is compressed, thereby squeezing the entire limiting block 32 into the sliding groove 12. When the limiting groove 33 and the limiting block 32 are aligned, the hemispherical part 322 of the limiting block 32 is pushed into the limiting groove 33 under the action of the elastic element 31. At this time, a "click" sound can be heard, indicating that the gasket 4 is in place. Preferably, when the gasket 4 is in place, the gasket 4 contacts the bottom wall of the groove 11. The fixing method is simple, and disassembly only requires slightly pulling out the gasket 4. It is convenient to assemble and disassemble and is low in cost.

[0040] Furthermore, to facilitate the removal of the pad 4, multiple arc-shaped grooves 13 are provided on the side of the pad 4 near the carrier film plate 2, making it easier and faster for doctors to remove the pad 4.

[0041] It should be noted that there are multiple limiting blocks 32, sliding grooves 12, limiting grooves 33, and elastic elements 31, and they correspond one-to-one. The gap between the limiting groove 33 and the hemispherical part 322 is less than or equal to 0.1 mm.

[0042] Multiple limiting grooves 33 are evenly spaced around the axis of the gasket 4.

[0043] Preferably, the elastic element 31 is a cylindrical spring, in which the hemispherical part 322 protrudes from the side wall of the receiving cavity 41 in its natural state, and the length direction of the cylindrical spring is the same as the axial direction of the sliding groove 12.

[0044] Of course, in this embodiment, the gasket 4 can also be secured in other ways. For example, a rubber pad is connected inside the groove 11. When the gasket 4 is installed in the groove 11, the rubber pad is squeezed, thereby securing the gasket 4 in the groove 11. This does not depart from the design concept of this utility model, and therefore should fall within the protection scope of this utility model.

[0045] Because gel-like CGF (concentrated growth factor) is highly viscous and easily overflows from the carrier plate 2, an annular baffle 5 is connected to the carrier plate 2. The inner diameter of the annular baffle 5 is larger than the diameter of the pressure plate 1.

[0046] The carrier plate 2 is made of polytetrafluoroethylene (low surface energy material) to reduce gel adhesion, and the 0.2mm high annular baffle 5 precisely matches the boundary control of 3ml-6ml of gel-like CGF (concentrated growth factor). In practical use, the mirror polishing treatment of the gasket 4 reduces demolding resistance, and the surface roughness Ra≤0.05μm makes the "pressing-forming-demolding" process smoother.

[0047] According to one embodiment of the present invention, a notch 51 is provided on the annular retaining edge 5. When the concentrated growth factor is squeezed, liquid will seep out, and the seeping liquid can flow out through the notch 51.

[0048] In the description of this utility model, it should be noted that the terms "upper" and "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0049] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0050] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A film pressing device, characterized in that, It includes a pressure plate (1), a film carrier plate (2), a retaining structure (3), and multiple gaskets (4). The carrier plate (2) is used to hold concentrated growth factors; The pressure plate (1) has a groove (11) on the side near the carrier film disk (2). The gasket (4) is detachably connected to the groove (11) through the fixing structure (3). Each gasket (4) has a receiving cavity (41) for accommodating the concentrated growth factor. The depths of the multiple receiving cavities (41) are different. The distance from the pressure plate (1) to the carrier film disk (2) is not less than the distance from the gasket (4) to the carrier film disk (2).

2. The film pressing device according to claim 1, characterized in that, The retaining structure (3) includes an elastic element (31), a limiting block (32), and a limiting groove (33); A sliding groove (12) communicating with the side wall of the groove (11) is provided, and the limiting block (32) is slidably connected in the sliding groove (12). The elastic element (31) is connected between the limiting block (32) and the bottom wall of the sliding groove (12). The limiting groove (33) is formed on the outer side wall of the gasket (4), and the limiting groove (33) is adapted to the limiting block (32).

3. The film pressing device according to claim 2, characterized in that, The limiting block (32) includes a cylindrical part (321) and a hemispherical part (322) connected to each other. The sidewall of the cylindrical part (321) is in contact with the inner sidewall of the sliding groove (12); The limiting groove (33) is a hemispherical groove.

4. The film pressing device according to claim 1, characterized in that, The carrier film disc (2) is connected to an annular baffle (5), the inner diameter of which is larger than the diameter of the pressure plate (1).

5. A film pressing device according to claim 4, characterized in that, The annular retaining edge (5) has a notch (51).

6. A film pressing device according to claim 1, characterized in that, The pressure film device also includes a force application mechanism (6). The force-applying mechanism (6) is used to press the pad (4) onto the carrier film disk (2).

7. A film pressing device according to claim 6, characterized in that, The force application mechanism (6) includes a rotating shaft (63), a first clamp body and a second clamp body. The first clamp body includes a first transmission rod (61) and a first hand ring (64). The second clamp body includes a second transmission rod (62) and a second hand ring (65). One end of the first transmission rod (61) is connected to the first hand ring (64), and the other end is connected to the pressure plate (1); One end of the second transmission rod (62) is connected to the second hand ring (65), and the other end is connected to the carrier film disk (2); The first transmission rod (61) and the second transmission rod (62) are rotatably connected by the rotating shaft (63).

8. A film pressing device according to claim 7, characterized in that, The pressure plate (1) is connected to a first connecting post (66), and the end of the first transmission rod (61) away from the first hand ring (64) is connected to a first ring (67). The first ring (67) is rotatably connected to the first connecting post (66).

9. A film pressing device according to claim 7, characterized in that, The rotating shaft (63) is located between the pressure plate (1) and the first hand ring (64).

10. A film pressing device according to claim 2, characterized in that, The elastic element (31) is a spring.

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