An autograft press-fitting and shaping device with overpressure prevention function

Abstract

An autograft press-fitting shaping device with an anti-overpressure function, comprising a base, a fixed block is fixedly connected to the top of the base, a lower mold is installed on the outer side of the fixed block, a support rod is fixedly connected to the top of the base, a top plate is fixedly connected to the top end of the support rod, a pressure rod is threadedly inserted into the middle of the top plate, and a mounting block is rotatably connected to the bottom end of the pressure rod; the application realizes quick replacement of the mold, moves the limiting block away from the positioning block by driving the unlocking block to move the linkage sliding plate through the pressure rod, realizes quick disassembly and replacement of the upper mold and the lower mold, and significantly improves the adaptation ability of the device to autografts of different shapes; the detachable mold structure design makes the upper mold and the lower mold flexible to replace according to different surgical needs, meets the clinical needs of diversified graft press-fitting shaping, simplifies maintenance and cleaning, the mold can be independently disassembled, is convenient for thorough cleaning and inspection, avoids wear or pollution caused by long-term use, and ensures shaping precision and graft product quality.

Description

Technical Field

[0001] This application relates to the field of autologous graft compression and shaping device technology, and more specifically, to an autologous graft compression and shaping device with overpressure protection function. Background Technology

[0002] In existing medical technologies, the collection and use of autologous grafts are of great significance in surgical repair or reconstruction procedures, and compression shaping devices are used during autologous graft compression.

[0003] In existing technologies, compression shaping devices typically employ a fixed upper and lower mold structure. This integrated design makes mold disassembly and replacement difficult. Since different shapes of autologous grafts require molds with specific contours for compression shaping, the molds in traditional devices cannot be quickly replaced, severely limiting the equipment's versatility and applicability. Furthermore, the non-removable nature of the molds increases the difficulty of maintenance and cleaning, and long-term use can easily cause wear or contamination of the mold's working surface, further affecting shaping accuracy and the quality of the final graft. This structural deficiency makes existing devices unable to meet the processing needs of diverse graft shapes in clinical surgery.

[0004] To address the aforementioned issues, this application provides an autologous graft compression and shaping device with overpressure protection function. Summary of the Invention

[0005] To address the shortcomings mentioned above, this utility model provides an autologous graft compression and shaping device with overpressure protection function.

[0006] To achieve the above objectives, this utility model provides an autologous graft compression and shaping device with overpressure prevention function, comprising a base, a fixing block fixedly connected to the top of the base, a lower mold mounted on the outer side of the fixing block, a support rod fixedly connected to the top of the base, a top plate fixedly connected to the top of the support rod, a pressure rod threaded into the middle of the top plate, an installation block rotatably connected to the bottom end of the pressure rod, a pressure digital display provided between the lower mold and the fixing block, an upper mold mounted on the outer side of the installation block, cavities formed inside both the installation block and the fixing block, and communication openings formed on opposite sides of both the installation block and the fixing block with the cavities. The positioning groove is provided. Positioning blocks are fixedly connected to the inner wall of the upper mold and the bottom end face of the lower mold. A limit groove is provided on the positioning block. A limit block is slidably connected inside the cavity. A spring is fixedly connected between the limit block and the inner wall of the cavity. A sliding groove is provided on the opposite side of the fixing block and the mounting block. A sliding plate is slidably connected inside the sliding groove. The sliding plate is fixedly connected to the limit block. A sliding groove is provided on the top of the base. A fixing plate is slidably connected inside the sliding groove. A connecting plate is provided on the top of the mounting block. A connecting assembly is provided between the connecting plate and the base. An unlocking block is fixedly connected to the bottom end face of the top plate.

[0007] Furthermore, the connecting assembly includes a guide plate and a fixing sleeve, wherein the guide plate is slidably inserted into the interior of the fixing sleeve.

[0008] Furthermore, one end of the connecting plate is fixedly connected to the sliding plate, and the other end of the connecting plate is fixedly connected to the guide plate.

[0009] Furthermore, one end of the fixing plate is fixedly connected to the sliding plate, and the other end of the fixing plate is fixedly connected to the fixing sleeve.

[0010] Furthermore, the top of the fixing block and the bottom of the mounting block are both provided with circular grooves, and the inner wall of the upper mold and the bottom of the lower mold are both fixedly connected with circular blocks that are adapted to the circular grooves.

[0011] Furthermore, a threaded groove is provided on the top of the lower mold, and an adjusting bolt is inserted into the threaded groove.

[0012] Furthermore, slots are symmetrically provided on the base.

[0013] The advantages of this utility model over the prior art are as follows:

[0014] This application enables rapid mold replacement. A pressure rod drives the unlocking block to move in conjunction with the sliding plate, disengaging the limiting block from the positioning block. This allows for quick disassembly and replacement of the upper and lower molds, significantly improving the device's adaptability to autologous grafts of different shapes. The detachable mold structure design allows for flexible replacement of the upper and lower molds according to different surgical needs, meeting diverse clinical requirements for graft compression and shaping. Maintenance and cleaning are simplified. The molds can be independently disassembled for thorough cleaning and inspection, avoiding wear or contamination from long-term use and ensuring shaping accuracy and graft quality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this application;

[0016] Figure 2 For the purposes of this application Figure 1 Another perspective structural diagram;

[0017] Figure 3 This is a partial structural diagram of this application;

[0018] Figure 4 This is a cross-sectional view of this application;

[0019] Figure 5 For the purposes of this application Figure 4 Enlarged schematic diagram of the structure of region A in the middle.

[0020] Explanation of the labels in the diagram:

[0021] 1. Base; 2. Support rod; 3. Top plate; 4. Pressure rod; 5. Guide plate; 6. Fixing sleeve; 7. Slide groove; 8. Lower mold; 9. Pressure digital display; 10. Fixing block; 11. Height adjustment bolt; 12. Upper mold; 13. Cavity; 14. Mounting block; 15. Connecting plate; 16. Sliding plate; 17. Unlocking block; 18. Positioning groove; 19. Positioning block; 20. Fixing plate; 21. Sliding groove; 22. Limiting groove; 23. Limiting block; 24. Spring. Detailed Implementation

[0022] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0023] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0025] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5This application discloses an autologous graft compression and shaping device with overpressure protection function, including a base 1. A fixing block 10 is fixedly connected to the top of the base 1. A lower mold 8 is installed on the outer side of the fixing block 10. A support rod 2 is fixedly connected to the top of the base 1. A top plate 3 is fixedly connected to the top of the support rod 2. A pressure rod 4 is threaded into the middle of the top plate 3. A threaded hole is opened in the middle of the top plate 3. The pressure rod 4 is threaded into the inside of the threaded hole. An installation block 14 is rotatably connected to the bottom end of the pressure rod 4. The top of the installation block 14 has an opening... The device has a circular groove, inside which a rotating seat is rotatably connected. The top end of the rotating seat is fixedly connected to the bottom end of the pressure rod 4. A pressure display 9 is provided between the lower mold 8 and the fixed block 10. The pressure display 9 includes a pressure sensor and a digital display module electrically connected to the pressure sensor. The pressure sensor is a capacitive pressure sensor, meaning the upper surface of the pressure display 9 is the movable electrode of the capacitive pressure sensor. The autologous graft is placed on the movable electrode of the capacitive pressure sensor and bears the pressure of the upper mold 12. The digital display module is located on the side of the pressure display 9. This facilitates real-time and intuitive reading and recording of the pressure values ​​borne by the autologous graft; an upper mold 12 is mounted on the outer side of the mounting block 14; both the mounting block 14 and the fixing block 10 have internal cavities 13; each of the opposite sides of the mounting block 14 and the fixing block 10 has a positioning groove 18 communicating with the cavity 13; positioning blocks 19 are fixedly connected to the inner wall of the upper mold 12 and the bottom end face of the lower mold 8; the positioning blocks 19 have limit grooves 22; and limit blocks 23 are slidably connected inside the cavity 13. A spring 24 is fixedly connected between the cavity 13 and the inner wall. Sliding grooves 21 are provided on opposite sides of the fixing block 10 and the mounting block 14. A sliding plate 16 is slidably connected inside the sliding groove 21. The sliding plate 16 is fixedly connected to the limiting block 23. A sliding groove 7 is provided on the top of the base 1. A fixing plate 20 is slidably connected inside the sliding groove 7. A connecting plate 15 is provided on the top of the mounting block 14. A connecting assembly is provided between the connecting plate 15 and the base 1. An unlocking block 17 is fixedly connected to the bottom surface of the top plate 3.

[0026] Please see Figure 2 and Figure 4 The connecting assembly includes a guide plate 5 and a fixing sleeve 6. The guide plate 5 is slidably inserted into the inside of the fixing sleeve 6. One end of the connecting plate 15 is fixedly connected to the sliding plate 16, and the other end of the connecting plate 15 is fixedly connected to the guide plate 5. One end of the fixing plate 20 is fixedly connected to the sliding plate 16, and the other end of the fixing plate 20 is fixedly connected to the fixing sleeve 6. When the upper mold 12 is moved downward by the pressure rod 4, the guide plate 5 slides inside the fixing sleeve 6, thereby playing a role in guiding the upper mold 12 during lifting and lowering, and improving the stability of the upper mold 12 during movement.

[0027] Please see Figure 3 and Figure 5 The top of the fixing block 10 and the bottom of the mounting block 14 are both provided with circular grooves. The inner wall of the upper mold 12 and the bottom of the lower mold 8 are both fixedly connected with circular blocks that are adapted to the circular grooves. When the upper mold 12 and the lower mold 8 are installed, the circular blocks are inserted into the inside of the circular grooves, thereby further positioning the upper mold 12 and the lower mold 8 and improving the stability of the installation of the upper mold 12 and the lower mold 8.

[0028] Please see Figure 1 The lower mold 8 has a threaded groove on its top, and an adjustment bolt 11 is threaded into the groove. Before use, multiple adjustment bolts 11 are adjusted to the same height. At the same time, other easily compressible substitutes, such as sterile artificial tissue of the same size, are placed without autologous grafts. The limit pressure value is then tested. When the edge of the upper mold 12 contacts the adjustment bolt 11, the upper mold 12 cannot continue to press down. At this time, the reading of the digital display module of the pressure display 9 is the limit pressure value reached at this moment. This limit pressure value can meet the surgical requirements of autologous grafts. In the subsequent compression and shaping process of autologous grafts, the autologous grafts will not be damaged due to excessive pressure.

[0029] Please see Figure 5 The base 1 has symmetrical slots, and the fixing sleeve 6 corresponds to the slots vertically. The slots are designed so that the guide plate 5 moves down, increasing the sliding space and thus increasing the distance that the guide plate 5 can slide down.

[0030] The implementation principle of this application embodiment is as follows:

[0031] First, an autologous graft is harvested from a location on the patient's body and placed into the lower mold 8. Next, rotating the pressure rod 4 moves the upper mold 12 downwards to apply pressure to the autologous graft. (As the upper mold 12 descends into the forming cavity of the lower mold 8, multiple vent holes can be provided on it as needed to facilitate venting. Additionally, the lower mold 8 can be made of a transparent material; or a glass observation window can be provided on it, allowing for easy observation of the pressure applied to the autologous graft. Furthermore, a scale can be installed at the observation window to visually measure the thickness of the autologous graft after pressure.) During the pressure application, a pressure sensor monitors the pressure in real time and feeds the data back to the operator for precise control of the pressure. Through the pressure operation, one or more dimensions of the tissue are altered to meet the requirements of the surgical repair or reconstruction procedure. Once the tissue size reaches the desired level, the pressure operation is stopped, and the graft is removed.

[0032] When it is necessary to disassemble the upper mold 12 and the lower mold 8, the pressure rod 4 is rotated in the opposite direction to move the pressure rod 4 upward. The upward movement of the pressure rod 4 causes the mounting block 14 and the upper mold 12 to move upward. When the mounting block 14 moves upward, the mounting block 14 contacts the unlocking block 17 and is squeezed, thereby causing the two sliding plates 16 to move towards each other. The sliding plate 16 closer to the top plate 3 moves and causes the connecting plate 15 to move. The moving of the connecting plate 15 causes the guide plate 5 and the fixing sleeve 6 to move. The moving of the fixing sleeve 6 causes the fixing plate 20 to move. The moving of the fixing plate 20 causes the sliding plate 16 closer to the base 1 to move.

[0033] When the sliding plate 16 moves, it drives the limiting block 23 to move inside the sliding groove 21. The movement of the limiting block 23 compresses the spring 24, and the spring 24 contracts under compression, causing the limiting block 23 to move out of the limiting groove 22, thereby releasing the limitation on the positioning block 19. At this time, since the positioning block 19 on the upper mold 12 is released from limitation, the upper mold 12 will drive the positioning block 19 to move out of the positioning groove 18 due to gravity, thus facilitating the disassembly of the upper mold 12.

[0034] Similarly, since the two positioning blocks 19 at the bottom of the lower mold 8 are released from their limits, moving the lower mold 8 upwards will allow the positioning blocks 19 to move out of the positioning groove 18, thus facilitating the disassembly of the lower mold 8.

[0035] Since the surface of the limiting block 23 is inclined, when installing the upper mold 12 and the lower mold 8, it is only necessary to make the positioning block 19 correspond to the positioning groove 18, and then insert the positioning block 19 into the interior of the positioning groove 18. During the insertion process, the inclined surface of the limiting block 23 is squeezed and moves, thus squeezing the spring 24.

[0036] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An autologous graft compression and shaping device with overpressure protection function, comprising a base (1), characterized in that: A fixing block (10) is fixedly connected to the top of the base (1). A lower mold (8) is installed on the outside of the fixing block (10). A support rod (2) is fixedly connected to the top of the base (1). A top plate (3) is fixedly connected to the top of the support rod (2). A pressure rod (4) is threaded into the middle of the top plate (3). An installation block (14) is rotatably connected to the pressure rod (4). A pressure digital display (9) is provided between the lower mold (8) and the fixing block (10). An upper mold (12) is installed on the outside of the installation block (14). A cavity (13) is opened inside both the installation block (14) and the fixing block (10). A positioning groove (18) communicating with the cavity (13) is opened on the opposite side of the installation block (14) and the fixing block (10). The inner wall of the upper mold (12) and the bottom end face of the lower mold (8) are fixedly connected. There is a positioning block (19), a limiting groove (22) is provided on the positioning block (19), a limiting block (23) is slidably connected inside the cavity (13), a spring (24) is fixedly connected between the limiting block (23) and the inner wall of the cavity (13), a sliding groove (21) is provided on the opposite side of the fixing block (10) and the mounting block (14), a sliding plate (16) is slidably connected inside the sliding groove (21), the sliding plate (16) is fixedly connected to the limiting block (23), a sliding groove (7) is provided on the top of the base (1), a fixing plate (20) is slidably connected inside the sliding groove (7), a connecting plate (15) is provided on the top of the mounting block (14), a connecting component is provided between the connecting plate (15) and the base (1), and an unlocking block (17) is fixedly connected to the bottom end face of the top plate (3).

2. The autologous graft compression and shaping device with overpressure protection function according to claim 1, characterized in that: The connecting assembly includes a guide plate (5) and a fixing sleeve (6), wherein the guide plate (5) is slidably inserted into the inside of the fixing sleeve (6).

3. The autologous graft compression and shaping device with overpressure protection function according to claim 1, characterized in that: One end of the connecting plate (15) is fixedly connected to the sliding plate (16), and the other end of the connecting plate (15) is fixedly connected to the guide plate (5).

4. The autologous graft compression and shaping device with overpressure protection function according to claim 1, characterized in that: One end of the fixing plate (20) is fixedly connected to the sliding plate (16), and the other end of the fixing plate (20) is fixedly connected to the fixing sleeve (6).

5. The autologous graft compression and shaping device with overpressure protection function according to claim 1, characterized in that: The top of the fixing block (10) and the bottom of the mounting block (14) are both provided with circular grooves, and the inner wall of the upper mold (12) and the bottom of the lower mold (8) are both fixedly connected with circular blocks that are adapted to the circular grooves.

6. The autologous graft compression and shaping device with overpressure protection function according to claim 1, characterized in that: The top of the lower mold (8) is provided with a threaded groove, and an adjusting bolt (11) is inserted into the threaded groove.

7. The autologous graft compression and shaping device with overpressure protection function according to claim 1, characterized in that: The base (1) has symmetrical slots.

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