Plasma matrix membrane cutting device

Abstract

The utility model discloses a plasma matrix membrane cutting device, and belongs to the technical field of blood product processing. A plasma matrix membrane cutting device comprises a membrane cutting base, a plurality of cutter grooves distributed at equal intervals are formed in the surface of the membrane cutting base, a mounting frame is arranged on the membrane cutting base in a matched mode, a cross rod is arranged on the mounting frame, a plurality of blades are arranged on the periphery of the cross rod, the blades correspond to the cutter grooves one to one, and the cutter grooves are communicated with the mounting frame. Adjusting pieces are arranged between the cross rod and the blades, a handle is installed at the end, away from the cross rod, of the installation frame, and a positioning piece is arranged between the installation frame and the film cutting base. According to the plasma matrix membrane cutting device, a mechanical cutting mode is used for replacing traditional manual scissor cutting, cutting efficiency is greatly improved, especially when a large number of plasma matrix bone blocks need to be prepared, the plasma matrix membrane cutting device can rapidly and evenly complete the cutting task, the labor intensity and the fatigue feeling of operators are reduced, and the working efficiency of the operators is improved. And the overall preparation efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of blood product processing technology, and in particular relates to a plasma matrix membrane cutting device. Background Technology

[0002] In the field of orthopedic medicine, plasma matrix bone blocks are widely used in bone grafting surgery as an important biomaterial to replace autologous bone blocks and promote bone tissue regeneration and repair. A key step in their preparation is cutting the plasma matrix membrane into appropriately sized fragments and mixing them with bone substitute materials to form a composite material with specific physical and biological properties. This step not only affects the final performance of the plasma matrix bone block but also directly impacts the success rate of the surgery and the patient's recovery.

[0003] Traditionally, the cutting of plasma matrix membranes has relied primarily on manual scissors. However, this method has several drawbacks. First, scissor cutting is extremely inefficient, especially when large quantities of plasma matrix bone blocks need to be prepared. Manual operation is not only time-consuming and labor-intensive but also prone to operator fatigue, thus affecting the cutting quality. Second, due to the limitations of manual operation, the size of the cut plasma matrix membrane fragments is often inconsistent. Fragments of varying sizes are difficult to mix with bone substitute materials to form a uniform composite material, thereby affecting the preparation effect and clinical application performance of plasma matrix bone blocks. Summary of the Invention

[0004] The purpose of this invention is to address the problems existing in the prior art by providing a plasma matrix membrane cutting device.

[0005] To achieve the above objectives, the present invention employs the following technical solution: a plasma matrix membrane cutting device, comprising a cutting seat, wherein a plurality of equally spaced blade grooves are formed on the surface of the cutting seat, a mounting frame is fitted on the cutting seat, a crossbar is provided on the mounting frame, a plurality of blades are provided on the outer periphery of the crossbar, the plurality of blades correspond one-to-one with the plurality of blade grooves, an adjusting member is provided between the crossbar and the plurality of blades, a handle is installed at the end of the mounting frame away from the crossbar, and a positioning member is provided between the mounting frame and the cutting seat.

[0006] By adopting the above technical solution, this membrane cutter achieves uniform and rapid cutting of plasma matrix membranes through the one-to-one correspondence between the equidistant blade grooves on the membrane cutting seat and the blades on the outer periphery of the crossbar on the mounting frame. The adjustable components allow for easy adjustment and replacement of the blade positions to adapt to different cutting needs. The handle design facilitates handheld cutting operations, while the positioning components ensure the stability of the relative positions of the mounting frame and the membrane cutting seat during the cutting process, thus improving cutting accuracy.

[0007] Optionally, the lengths of the plurality of cutting grooves are 30mm-80mm, the widths of the plurality of cutting grooves are 1mm-5mm, and the depths of the plurality of cutting grooves are 2mm-8mm.

[0008] By adopting the above technical solution, the length, width and depth of the cutting groove are all set within a reasonable range, which can adapt to the cutting needs of plasma matrix membranes of different sizes and thicknesses, ensuring the flexibility and versatility of cutting.

[0009] Optionally, the mounting bracket is U-shaped, with a bearing for the crossbar to rotate embedded in the side wall of one end of the mounting bracket, and a mounting hole provided at the other end of the mounting bracket, with a fastening bolt provided in the mounting hole.

[0010] By adopting the above technical solutions, the U-shaped mounting bracket structure is stable, the bearing setting allows the crossbar to rotate smoothly, reducing frictional resistance during the cutting process; the design of the mounting holes and fastening bolts facilitates the disassembly and maintenance of the crossbar.

[0011] Optionally, one end of the crossbar is provided with a pivot, which is connected to the bearing, and the other end of the crossbar is provided with a slot, with one end of the fastening bolt located inside the slot.

[0012] By adopting the above technical solution, the connection between the rotating shaft and the bearing ensures the stability of the crossbar rotation, while the cooperation between the rotating groove and the fastening bolts achieves the fixation of the crossbar.

[0013] Optionally, the thickness of some of the blades is 2mm-6mm, the cutting edge length of some of the blades is 2mm-8mm, and the sidewalls on both sides of the blades are respectively fitted with the two cutting angles of the blade groove.

[0014] By adopting the above technical solution, the thickness and blade length of the blade are set reasonably, which can ensure the stability and cutting effect during the cutting process. The fit between the two sides of the blade and the cutting angle of the blade groove can prevent the blade from sliding laterally during the cutting process, fix the cutting path, and reduce the frequency of blade wear and replacement.

[0015] Optionally, the adjusting component includes a mounting groove formed on the surface of the crossbar, a fastening strip provided inside the mounting groove, a pair of return springs provided between the fastening strip and the mounting groove, a rubber pad installed on the surface of the fastening strip, a pair of through holes formed on the bottom wall of the mounting groove, and an adjusting bolt for pressing the fastening strip in each of the pair of through holes, and a plurality of blades having abutment grooves connected to the fastening strip on their surfaces.

[0016] By adopting the above technical solution, the adjusting component, through the cooperation of the fastening strip, return spring, rubber pad, and adjusting bolt, achieves precise adjustment and fixation of the blade position. The rubber pad reduces friction between the blade and the fastening strip, improving the smoothness of adjustment. The abutment groove design ensures a tight connection between the blade and the fastening strip, improving cutting stability.

[0017] Optionally, the positioning element includes fixed seats installed on both sides of the mounting frame, and a positioning seat is respectively installed on the side of the pair of fixed seats near the cutting seat. The surface of the cutting seat is provided with a positioning groove for the pair of positioning seats to slide in an orientation.

[0018] By adopting the above technical solution, the positioning component achieves stable relative positioning between the mounting bracket and the cutting seat. The directional sliding of the positioning seat within the positioning groove ensures straightness and accuracy during the cutting process, thereby improving cutting precision.

[0019] Optionally, the surface of the mounting bracket is provided with a scale.

[0020] By adopting the above technical solution, the scale setting makes it easy for operators to intuitively understand the cutting dimensions, and at the same time, it also provides precision for adjusting the spacing between the blades.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] 1. The plasma matrix membrane cutting device of this utility model replaces the traditional manual scissor cutting with a mechanized cutting method, which greatly improves the cutting efficiency. Especially when a large number of plasma matrix bone blocks need to be prepared, this cutting device can complete the cutting task quickly and evenly, reducing the labor intensity and fatigue of operators and improving the overall preparation efficiency.

[0023] 2. The adjustable design allows the blade position to be adjusted according to different cutting needs, while also facilitating blade disassembly and replacement. This flexibility not only adapts to the cutting requirements of plasma matrix membranes of different sizes and thicknesses but also extends the service life of the equipment and reduces maintenance costs.

[0024] 3. The design of the positioning component ensures the stability of the relative position between the mounting bracket and the cutting seat during the cutting process, reducing errors and deviations during the cutting process. At the same time, the close fit between the blade and the groove, as well as the precise adjustment of the adjusting component, further improves the cutting accuracy and stability, ensuring the reliability of the cutting quality.

[0025] 4. This utility model utilizes the cutting angle of the blade and the groove for cutting, which avoids lateral slippage of the blade during the cutting process, fixes the cutting path, and reduces the frequency of blade wear and replacement. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the main structure of the film cutting seat of this utility model;

[0027] Figure 2 This is a schematic diagram of the cross-sectional structure of the mounting bracket of this utility model;

[0028] Figure 3 This is a schematic diagram of the connection structure between the blade and the groove of this utility model;

[0029] Figure 4 This is a schematic diagram of the cross-sectional structure of the crossbar of this utility model;

[0030] Figure 5 This is a schematic diagram of the connection structure between the crossbar and the blade of this utility model;

[0031] Figure 6 This is a three-dimensional structural diagram of the fixing base of this utility model;

[0032] Figure 7 This is a schematic diagram of the improved film cutting seat structure of this utility model.

[0033] In the diagram: 1. Cutting seat; 2. Knife groove; 3. Mounting bracket; 301. Bearing; 302. Mounting hole; 303. Fastening bolt; 304. Scale; 4. Crossbar; 401. Rotating shaft; 402. Rotating groove; 5. Blade; 6. Adjusting component; 61. Mounting groove; 62. Fastening strip; 63. Return spring; 64. Rubber pad; 65. Through hole; 66. Adjusting bolt; 67. Abutment groove; 7. Handle; 8. Positioning component; 81. Fixed seat; 82. Positioning seat; 83. Positioning groove. Detailed Implementation

[0034] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0035] In the description of this utility model, it should be noted that the terms "middle", "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are 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.

[0036] like Figure 1-6As shown, the specific solution of the embodiment is as follows: A plasma matrix membrane cutting device includes a cutting seat 1, and a plurality of equally spaced cutting grooves 2 are formed on the surface of the cutting seat 1. The plurality of cutting grooves 2 are longitudinally distributed, and the lengths of the plurality of cutting grooves 2 are 30mm-80mm, the widths of the plurality of cutting grooves 2 are 1mm-5mm, and the depths of the plurality of cutting grooves 2 are 2mm-8mm.

[0037] The membrane cutting seat 1 serves as the basic support component of the entire membrane cutting device, providing a stable platform for the placement and cutting of the plasma matrix membrane. This ensures that the cutting operation can be carried out on a fixed and flat surface. At the same time, the several equally spaced cutting grooves 2 on its surface provide a guide path for the cutting of the blade 5, making the cutting process more standardized and accurate.

[0038] like Figure 7 As shown, in some embodiments, the cutting groove 2 on the cutting seat 1 can be configured as a cross-shaped pattern. The cross-shaped design of the cutting groove 2 allows for convenient transverse and longitudinal cutting of the plasma matrix membrane during cutting. The cutting can be completed without moving the placed plasma matrix membrane.

[0039] The surface of the cutting device is provided with a mounting bracket 3, which supports the crossbar 4 and the blades 5 and is the main execution component for the cutting operation. The mounting bracket 3 is U-shaped. A bearing 301 for the crossbar 4 to rotate is embedded in the side wall of one end of the mounting bracket 3, and a mounting hole 302 is opened at the other end of the mounting bracket 3. The bearing 301 at one end of the mounting bracket 3 is designed to allow the crossbar 4 to rotate smoothly and reduce frictional resistance during the cutting process. The mounting hole 302 and fastening bolt 303 at the other end are designed to facilitate the installation and fixation of the crossbar 4 and improve the maintainability of the equipment. The surface of the mounting bracket 3 is provided with a scale 304. The scale 304 is designed to allow the operator to intuitively understand the cutting dimensions and also provides accuracy for the spacing between the blades 5.

[0040] The mounting hole 302 is provided with a fastening bolt 303. The mounting bracket 3 is provided with a crossbar 4, which is used to connect the mounting bracket 3 and the blade 5. The crossbar 4 drives the blade 5 to cut along the blade groove 2 by its own rotation. One end of the crossbar 4 is provided with a rotating shaft 401, which is connected to the bearing 301. The other end of the crossbar 4 is provided with a rotating groove 402, and one end of the fastening bolt 303 is located inside the rotating groove 402.

[0041] The outer periphery of the crossbar 4 is provided with several blades 5. The blades 5 directly contact and cut the plasma matrix membrane, and are the key components for realizing the cutting function. The thickness of the blades 5 is 2mm-6mm, and the blade length is 2mm-8mm. The side walls on both sides of the blades 5 are respectively attached to the two cutting angles of the groove 2. The blades 5 correspond one-to-one with the grooves 2. Different thicknesses and blade lengths can be selected according to the texture of the plasma matrix membrane and the cutting requirements to achieve the best cutting effect. The side walls on both sides of the blades 5 are respectively attached to the two cutting angles of the groove 2. This close-fitting design avoids the blades on the blades 5 from contacting the membrane cutting seat 1. The plasma matrix membrane is cut by the cutting angles of the groove 2, which reduces the wear and replacement frequency of the blades 5 and improves the stability of the cutting direction of the blades 5.

[0042] An adjusting member 6 is provided between the crossbar 4 and the plurality of blades 5. The adjusting member 6 is used to adjust the position of the blades 5 to adapt to different cutting requirements and to facilitate the disassembly and replacement of the blades 5. The adjusting member 6 includes a mounting groove 61 formed on the surface of the crossbar 4. A fastening strip 62 is provided inside the mounting groove 61. A pair of return springs 63 are provided between the fastening strip 62 and the mounting groove 61. A rubber pad 64 is installed on the surface of the fastening strip 62. A pair of through holes 65 are formed on the bottom wall of the mounting groove 61. Adjusting bolts 66 are respectively provided in the pair of through holes 65 to abut against the fastening strip 62. Abutment grooves 67 connected to the fastening strip 62 are respectively formed on the surface of the plurality of blades 5.

[0043] The combined design of components such as mounting groove 61, fastening strip 62, return spring 63, rubber pad 64, and adjusting bolt 66 provides a flexible solution for adjusting the position of the blade 5. By adjusting the bolt 66 to tighten or loosen the fastening strip 62, the spacing between several blades 5 can be easily adjusted, thereby cutting plasma matrix membranes of different widths. At the same time, this design also facilitates the disassembly and replacement of the blades 5. When the blades 5 are worn or damaged, new blades 5 can be quickly replaced, extending the service life of the equipment and reducing maintenance costs.

[0044] A handle 7 is installed at the end of the mounting bracket 3 away from the crossbar 4. The handle 7 provides a force point for the operator, making it easy for the operator to manually operate the film cutter for cutting. The outer periphery of the handle 7 is covered with an anti-slip pad, which increases the friction between the handle 7 and the operator's hand, preventing the hand from slipping during operation, improving the safety and stability of operation, and allowing the operator to more easily control the cutting action of the film cutter.

[0045] A positioning element 8 is provided between the mounting frame 3 and the cutting seat 1. The positioning element 8 includes a fixed seat 81 installed on both sides of the mounting frame 3. A positioning seat 82 is respectively installed on the side of the fixed seat 81 near the cutting seat 1. The surface of the cutting seat 1 is provided with a positioning groove 83 for the directional sliding of the pair of positioning seats 82. The design of the fixed seat 81 and the positioning seat 82 allows the mounting frame 3 to fit tightly with the cutting seat 1. The directional sliding of the positioning seat 82 in the positioning groove 83 further restricts the position change of the mounting frame 3 during the cutting process, ensuring the accuracy and consistency of the cutting action. This stable positioning relationship helps to improve the cutting accuracy and stability, ensure the reliability of the cutting quality, and avoid problems such as inaccurate cutting caused by the unstable relative position between the mounting frame 3 and the cutting seat 1.

[0046] The operating steps of the above-mentioned plasma matrix membrane cutting device are as follows:

[0047] Before using the membrane cutter, clean and sterilize the membrane cutting seat 1, mounting frame 3, blade 5 and other components to ensure that there is no residual plasma matrix membrane or other impurities.

[0048] Select the appropriate blade 5 and install it on the crossbar 4 according to the size and thickness of the plasma matrix membrane to be cut. Align the abutment groove 67 of the blade 5 with the fastening strip 62. Adjust the spacing between several blades 5 according to the cutting requirements. Then tighten the fastening strip 62 with the adjusting bolt 66 to make the blade 5 firmly fixed on the crossbar 4.

[0049] Place the plasma matrix membrane to be cut flat on the cutting seat 1;

[0050] Align the positioning seat 82 of the mounting bracket 3 with the positioning groove 83 on the film cutting seat 1, so that the mounting bracket 3 and the film cutting seat 1 fit tightly together, and the positioning seat 82 slides in the positioning groove 83 in a specific direction.

[0051] The operator holds the handle 7 and applies force through the handle 7, causing the mounting frame 3 to drive the crossbar 4 and the blade 5 to cut along the cutting groove 2. During the cutting process, the plasma matrix membrane is cut by the cutting angle of the cutting groove 2.

[0052] Once the cutting is complete, the strips of plasma matrix membrane are reversed and cut again until the plasma matrix membrane is cut into small squares.

[0053] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plasma matrix membrane cutting device, characterized in that, The device includes a film cutting seat, on the surface of which are provided a plurality of equally spaced knife grooves. A mounting frame is fitted on the film cutting seat, and a crossbar is provided on the mounting frame. A plurality of blades are provided on the outer periphery of the crossbar, and the plurality of blades correspond one-to-one with the plurality of knife grooves. An adjusting element is provided between the crossbar and the plurality of blades. A handle is installed on the end of the mounting frame away from the crossbar, and a positioning element is provided between the mounting frame and the film cutting seat.

2. The plasma matrix membrane cutting device according to claim 1, characterized in that: The lengths of the plurality of cutting grooves are 30mm-80mm, the widths of the plurality of cutting grooves are 1mm-5mm, and the depths of the plurality of cutting grooves are 2mm-8mm.

3. The plasma matrix membrane cutting device according to claim 1, characterized in that: The mounting bracket is U-shaped, with a bearing for the crossbar to rotate embedded in the side wall of one end of the mounting bracket, and a mounting hole with a fastening bolt inside the mounting hole at the other end of the mounting bracket.

4. A plasma matrix membrane cutting device according to claim 3, characterized in that: One end of the crossbar is provided with a rotating shaft, which is connected to the bearing. The other end of the crossbar is provided with a rotating groove, and one end of the fastening bolt is located inside the rotating groove.

5. A plasma matrix membrane cutting device according to claim 1, characterized in that: The thickness of some of the blades is 2mm-6mm, the blade length of some of the blades is 2mm-8mm, and the sidewalls on both sides of the blades are respectively attached to the two cutting angles of the blade groove.

6. A plasma matrix membrane cutting device according to claim 1, characterized in that: The adjusting component includes a mounting groove formed on the surface of the crossbar, a fastening strip provided in the mounting groove, a pair of return springs provided between the fastening strip and the mounting groove, a rubber pad installed on the surface of the fastening strip, a pair of through holes formed on the bottom wall of the mounting groove, and an adjusting bolt for pressing the fastening strip in each of the pair of through holes, and abutment grooves connected to the fastening strip formed on the surface of each of the plurality of blades.

7. A plasma matrix membrane cutting device according to claim 1, characterized in that: The positioning element includes fixed seats installed on both sides of the mounting frame. A positioning seat is installed on the side of the pair of fixed seats near the cutting seat. The surface of the cutting seat is provided with a positioning groove for the pair of positioning seats to slide in an orienting manner.

8. A plasma matrix membrane cutting device according to claim 1, characterized in that: The surface of the mounting bracket is provided with a scale.

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