Bone plate shaping and punching mechanism

Abstract

The utility model discloses a bone lamella shaping and punching mechanism which comprises an upper die and a lower die, one of the lower surface of the upper die and the upper surface of the lower die is provided with a protruding structure, the other one is provided with a groove structure, and the shape of the top face of the protruding structure and the shape of the bottom face of the groove structure are matched with the shapes of the two shaped surfaces of a bone lamella respectively. The bone plate is arranged in the groove structure, in the closing process of the upper die and the lower die, the protruding structure and the groove structure can precisely shape the bone plate, the rapid, precise and stable shaping requirements are met, the operation success rate is increased, and the operation time is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a bone plate shaping and punching mechanism. Background Art

[0002] With the continuous development of medical technology, absorbable bone plates are becoming more and more widely used in clinical applications as a safe and effective orthopedic implant. During the current absorbable bone plate surgery, the doctor usually heats the absorbable bone plate in a water bath during the operation to soften the absorbable bone plate to meet the manual shaping operation. The doctor's manual shaping cannot meet the requirements of fast, accurate and stable shaping of the absorbable bone plate due to the rapid hardening speed of the absorbable bone plate after leaving the water bath device and the randomness of manual shaping. The doctor is often required to repeatedly shape the plate many times, and the temperature of the water bath is relatively high, which not only prolongs the operation time but also may cause harm to the doctor. Secondly, when some absorbable bone plates are implanted, holes are punched at different positions of the bone plate according to the actual situation of the patient. Since the bone plates are generally small in size, the accuracy and stability of the holes cannot be guaranteed, and it is also easy to cause harm to the operator. Utility Model Content

[0003] The purpose of this application is to provide a bone plate shaping and punching mechanism to solve the problems raised in the above background technology.

[0004] To achieve the above objectives, this application provides the following technical solutions:

[0005] A bone plate shaping and punching mechanism includes an upper mold and a lower mold. One of the lower surface of the upper mold and the upper surface of the lower mold is provided with a protrusion structure, and the other is provided with a groove structure. The top surface shape of the protrusion structure and the bottom surface shape of the groove structure respectively match the shapes of the two surfaces of the bone plate after shaping.

[0006] Optionally, the groove structure is provided on the upper surface of the lower mold, and the groove structure includes a groove and a guide positioning part. A plurality of the guide positioning parts are protruded on the groove wall of the groove, and the side wall of the guide positioning part contacts the outer side wall of the shaping front bone plate.

[0007] Optionally, the protruding structure is provided on the lower surface of the upper mold, and during the shaping process, the outer side wall of the protruding structure contacts the side wall of the guide positioning portion.

[0008] Optionally, the guide positioning portion includes a guide section and a positioning section, the guide section is located above the positioning section, the thickness of the guide section protruding from the groove wall gradually increases from top to bottom, and the positioning section is connected to the guide section and extends vertically from top to bottom.

[0009] Optionally, the guide section is semi-conical and the positioning section is semi-cylindrical.

[0010] Optionally, at least one guide positioning portion is correspondingly provided on each side wall of the groove.

[0011] Optionally, the lower mold is provided with a prying opening that passes through the outer side wall of the lower mold and the side wall of the groove.

[0012] Optionally, one side of the upper mold and one side of the lower mold are hinged to each other.

[0013] Optionally, a handle is provided on the other side of the upper mold and the other side of the lower mold respectively.

[0014] Optionally, the upper mold and the lower mold are respectively penetrated by multiple first through holes and multiple second through holes, and the multiple first through holes and the multiple second through holes correspond to each other coaxially. The bone plate shaping and punching mechanism also includes a drilling device, and the drill bit of the drilling device can penetrate the first through holes, the bone plate and the second through holes.

[0015] In summary, the technical effects and advantages of the utility model are as follows: the bone plate of the present application is placed in the groove structure, and during the closing process of the upper mold and the lower mold, the protrusion structure and the groove structure can accurately shape the bone plate, meeting the requirements of fast, accurate and stable shaping, improving the success rate of the operation and shortening the operation time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a structural diagram of a bone plate shaping and punching mechanism in one embodiment of the present utility model;

[0018] Figure 2 This is a structural diagram of an upper mold in one embodiment of the present utility model;

[0019] Figure 3 This is a structural diagram of the lower mold in one embodiment of the present utility model;

[0020] Figure 4 A half-section view of the lower mold in one embodiment of the present utility model;

[0021] Figure 5 for Figure 4 A partial enlarged view of point A in the middle;

[0022] Figure 6 This is a partial schematic diagram of the groove and the guide positioning portion in one embodiment of the present utility model;

[0023] Figure 7 This is a schematic diagram of the cooperation between the shaping front bone plate and the lower mold in one embodiment of the present invention;

[0024] Figure 8 This is a schematic diagram of a punching mechanism for shaping a bone plate in one embodiment of the present invention;

[0025] Figure 9 This is a schematic diagram of the completion of drilling of the bone plate shaping and drilling mechanism in one embodiment of the present utility model;

[0026] Figure 10 This is a schematic structural diagram of the bone plate before processing in one embodiment of the present invention;

[0027] Figure 11 This is a schematic structural diagram of the bone plate after shaping and punching in one embodiment of the present invention.

[0028] in:

[0029] 01. Bone plate; 1. Upper mold; 11. Protrusion structure; 111. Top surface; 12. First handle; 13. First through hole; 14. First hinge structure; 2. Lower mold; 21. Groove structure; 211. Groove; 2111. Bottom surface; 212. Guide and positioning portion; 2121. Guide section; 2122. Positioning section; 22. Prying opening; 23. Second handle; 24. Second through hole; 25. Second hinge structure; 3. Axis pin; 4. Drill bit. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the systems or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0033] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0034] This embodiment provides a bone plate shaping and punching mechanism, such as Figures 1-11 As shown, the bone plate shaping and punching mechanism includes an upper mold 1 and a lower mold 2. Among the lower surface of the upper mold 1 and the upper surface of the lower mold 2, one is provided with a protrusion structure 11 and the other is provided with a groove structure 21. The shape of the top surface 111 of the protrusion structure 11 and the shape of the bottom surface 2111 of the groove structure 21 respectively match the shapes of the two surfaces of the bone plate 01 after shaping. In this embodiment, the groove structure 21 is provided on the upper surface of the lower mold 2, and the protrusion structure 11 is provided on the lower surface of the upper mold 1. The protrusion structure 11 and the groove structure 21 cooperate to shape the bone plate 01 in the process of closing the upper mold 1 and the lower mold 2. The top surface of the protrusion structure 11 and the bottom surface of the groove structure 21 are both shaping surfaces. In other embodiments, the groove structure 21 can also be provided on the lower surface of the upper mold 1, and the protrusion structure 11 is provided on the upper surface of the lower mold 2.

[0035] In this embodiment, the bone plate 01 is placed in the groove structure 21. During the closing process of the upper mold 1 and the lower mold 2, the protrusion structure 11 and the groove structure 21 can accurately shape the bone plate 01 to meet the requirements of fast, accurate and stable shaping.

[0036] Optionally, in this embodiment, if Figure 3-Figure 7 As shown, the groove structure 21 is arranged on the upper surface of the lower mold 2, and the groove structure 21 includes a groove 211 and a guide positioning portion 212. A plurality of guide positioning portions 212 are convexly arranged on the groove wall of the groove 211, and the sidewalls of the guide positioning portion 212 are in contact with the outer wall of the bone plate 01 before shaping. In the present embodiment, the bone plate 01 is an absorbable skull bone plate, and its shape is triangular, so the shape of the groove 211 is also triangular. In other embodiments, the shape of the groove 211 is not specifically limited. The shape of the groove 211 is adapted to the outer shape of the bone plate 01, and the size of the groove 211 is slightly larger than the bone plate 01. In the present embodiment, the guide positioning portion 212 is in contact with the outer wall of the bone plate 01 before shaping, so as to facilitate the placement and positioning of the bone plate 01. Optionally, the groove wall on the upper part of the groove 211 gradually expands outwards from bottom to top, so as to facilitate the placement of the bone plate 01.

[0037] Optionally, in this embodiment, if Figure 2-Figure 6 As shown, the raised structure 11 is provided on the lower surface of the upper mold 1. During the shaping process, the outer sidewall of the raised structure 11 contacts the sidewall of the guide and positioning portion 212. The guide and positioning portion 212 can also guide and position the raised structure 11 of the upper mold 1 when the upper mold 1 is closed. In this embodiment, the bone plate 01 is an absorbable skull bone plate with a triangular shape, and the raised structure 11 is also triangular in shape. In other embodiments, there is no specific limitation on the shape of the raised structure 11, and the shape of the raised structure 11 is compatible with the outer shape of the bone plate 01.

[0038] Alternatively, as Figure 5 and Figure 6 As shown, the guide and positioning portion 212 includes a guide section 2121 and a positioning section 2122. The guide section 2121 is located above the positioning section 2122. The thickness of the groove wall of the guide section 2121 protruding from the groove 211 gradually increases from top to bottom. The positioning section 2122 is connected to the guide section 2121 and extends vertically from top to bottom. The thickness of the groove wall of the guide section 2121 protruding from the groove 211 gradually increases from top to bottom. During the closing process of the upper mold 1 and the lower mold 2, the guidance of the guide section 2121 can prevent interference between the protruding structure 11 of the upper mold 1 and the groove structure 21 of the lower mold 2 during the closing process. The positioning section 2122 contacts the shaping front bone plate 01 and the protruding structure 11 to achieve positioning.

[0039] Alternatively, as Figure 6-Figure 7 As shown, the surface that the guide positioning part 212 contacts with the shaping front bone plate 01 and / or the raised structure 11 is an arcuate surface. The arcuate sidewall of the guide positioning part 212 can be smoothly tangent to the shaping front bone plate 01 and / or the raised structure 11, which is conducive to the shaping operation. In the present embodiment, the guide section 2121 is semi-conical, and the positioning section 2122 is semi-cylindrical. The large end of the guide section 2121 is connected with the upper end of the positioning section 2122, and the small end of the guide section 2121 is flush with the upper surface of the lower die 2. The application does not specifically limit the structure of the guide positioning part 212. For example, the surface that the guide positioning part 212 contacts with the shaping front bone plate 01 and / or the raised structure 11 can also be a spherical surface, an elliptical surface or a plane etc.

[0040] Alternatively, as Figure 7 As shown, each sidewall of the groove 211 is provided with at least one corresponding guide and positioning portion 212. In this embodiment, each sidewall of the groove 211 is provided with a guide and positioning portion 212, which is located in the middle of the sidewall. Each guide and positioning portion 212 corresponds to an edge of the bone plate 01, thereby stably positioning the bone plate 01. To ensure the guiding and positioning effect of the guide and positioning portions 212, two, three, or more guide and positioning portions 212 may be provided at intervals on each sidewall of the groove 211.

[0041] Alternatively, as Figure 1 and Figure 3 As shown, the lower die 2 is provided with a prying opening 22 that passes through the outer side wall of the lower die 2 and the side wall of the groove 211. After processing is completed, the bone plate 01 can be easily removed by applying force upward through the prying opening 22.

[0042] Alternatively, as Figure 2 and Figure 3 As shown, in this embodiment, the bone plate 01 is a skull bone plate. Since the skull is a spherical structure, the top surface 111 of the convex structure and the bottom surface 2111 of the groove structure are spherical surfaces, which meet the use requirements of the absorbable bone plate in various parts of the skull after shaping. Figure 10 The figure shows the schematic diagram of the bone plate before processing. Figure 11 Schematic diagram of the bone plate after being shaped and punched by this embodiment. The present application does not impose any specific restrictions on the shape of the top surface 111 of the protruding structure and the bottom surface 2111 of the groove structure, which can be adaptively modified according to the requirements of the shaped bone plate 01. In this embodiment, the top surface 111 of the protruding structure 11 of the upper mold 1 is concave to a spherical surface, and the bottom surface 2111 of the groove structure 21 of the lower mold 2 is convex to a spherical surface, and the spherical surface matches the shape of the two surfaces of the bone plate 01 after shaping. In other embodiments, the top surface 111 of the protruding structure 11 of the upper mold 1 can be convex to a spherical surface, and the bottom surface 2111 of the groove structure 21 of the lower mold 2 can be concave to a spherical surface.

[0043] Alternatively, as Figure 1 As shown, one side of the upper mold 1 and one side of the lower mold 2 are hinged to each other to achieve the opening and closing of the upper mold 1 and the lower mold 2.

[0044] Alternatively, as Figure 1-Figure 3 As shown, a first handle 12 and a second handle 23 are provided on the other side of the upper mold 1 and the other side of the lower mold 2, respectively. The first handle 12 and the second handle 23 can prevent the operator's hands from entering the water bath device, making it easier to pressurize and close the upper mold 1 and the lower mold 2 to achieve the shaping operation, and can prevent the operator from being immersed in the water bath.

[0045] Alternatively, as Figure 2 and Figure 3 As shown, the upper mold 1 and the lower mold 2 are respectively penetrated by a plurality of first through holes 13 and a plurality of second through holes 24, and the plurality of first through holes 13 and the plurality of second through holes 24 correspond to each other coaxially, as shown in FIG. Figure 8 As shown, the bone plate shaping and punching mechanism further includes a drilling device, the drill bit 4 of the drilling device can penetrate the first through hole 13, the bone plate 01 and the second through hole 24, so as to facilitate the operator to punch holes quickly, accurately and stably during the operation.

[0046] Alternatively, as Figure 1As shown, one end of the upper mold 1 and the lower mold 2 are rotatably connected and provided with a first hinge structure 14 and a second hinge structure 25 that are staggered with each other. The first hinge structure 14 and the second hinge structure 25 are connected by an axle pin 3 to realize the rotatable connection between the upper mold 1 and one end of the lower mold 2.

[0047] Optionally, the main body of this embodiment is made of high-strength material, has sufficient rigidity and stability, and can withstand the pressure and thermal deformation during the water bath shaping process. The top surface of the protruding structure 11 and the bottom surface of the groove structure 21 can fit tightly with the bone plate 01, and the precise shaping of the bone plate 01 can be achieved through the rapid and accurate positioning of the guide positioning part 212 to ensure the stability and accuracy of use. The present application can adjust the shaping and punching operating steps and parameters according to the needs of different patients to adapt to different surgical needs. The shape and size of the upper mold 1 and the lower mold 2 can be adjusted according to different needs to meet the needs of different bone plates 01.

[0048] In summary, in this embodiment, the bone plate 01 is placed in the groove structure. During the closing process of the upper mold and the lower mold, the protrusion structure and the groove structure can accurately shape the bone plate 01, meeting the requirements of fast, accurate and stable shaping. It is easy to operate and has a humanized design, which facilitates operation and adjustment, improves the success rate of the operation, and shortens the operation time.

[0049] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A bone plate shaping and punching mechanism, characterized by: It comprises an upper mold and a lower mold, wherein one of the lower surface of the upper mold and the upper surface of the lower mold is provided with a protruding structure and the other is provided with a groove structure, and the top surface shape of the protruding structure and the bottom surface shape of the groove structure respectively match the shapes of the two surfaces of the bone plate after shaping.

2. The bone plate shaping and punching mechanism according to claim 1, characterized in that: The groove structure is arranged on the upper surface of the lower mold, and the groove structure includes a groove and a guide positioning part. A plurality of the guide positioning parts are protruded on the groove wall of the groove, and the side wall of the guide positioning part contacts the outer side wall of the shaping front bone plate.

3. The bone plate shaping and punching mechanism according to claim 2, characterized in that: The protruding structure is provided on the lower surface of the upper mold, and during the shaping process, the outer side wall of the protruding structure contacts the side wall of the guide positioning portion.

4. The bone plate shaping and punching mechanism according to claim 3, characterized in that: The guide positioning portion includes a guide section and a positioning section. The guide section is located above the positioning section. The thickness of the guide section protruding from the groove wall gradually increases from top to bottom. The positioning section is connected to the guide section and extends vertically from top to bottom.

5. The bone plate shaping and punching mechanism according to claim 4, characterized in that: The guide section is semi-conical, and the positioning section is semi-cylindrical.

6. The bone plate shaping and punching mechanism according to claim 2, characterized in that: Each side wall of the groove is correspondingly provided with at least one guiding and positioning portion.

7. The bone plate shaping and punching mechanism according to claim 2, characterized in that: The lower mold is provided with a prying opening which passes through the outer side wall of the lower mold and the side wall of the groove.

8. The bone plate shaping and punching mechanism according to claim 1, characterized in that: One side of the upper mold and one side of the lower mold are hinged to each other.

9. The bone plate shaping and punching mechanism according to claim 8, characterized in that: A first handle and a second handle are respectively provided on the other side of the upper mold and the other side of the lower mold.

10. The bone plate shaping and punching mechanism according to claim 1, characterized in that: The upper mold and the lower mold are respectively penetrated by multiple first through holes and multiple second through holes, and the multiple first through holes and the multiple second through holes correspond to each other coaxially. The bone plate shaping and punching mechanism also includes a drilling device, and the drill bit of the drilling device can penetrate the first through holes, the bone plate and the second through holes.

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