Skull repair plate

Abstract

The utility model relates to the technical field of medical instruments, in particular to a skull repair plate, which comprises an implantation main body provided with an inner surface and an outer surface which are opposite to each other; the through hole penetrates through the implantation main body; the temporomuscle suspension system is distributed on the implantation main body and comprises at least one group of temporomuscle suspension structures which are independent from the through hole and are not communicated with the through hole; the temporalis suspension structure comprises a first opening, a second opening and a channel, the first opening and the second opening are both located in the outer surface, the channel obliquely extends downwards from the first opening and then obliquely extends upwards to the second opening, the bottom wall of the channel is a plane, and a gap is formed between the bottom wall of the channel and the inner surface. According to the skull repair plate, the temporal muscle suspension system is arranged, the mechanical strength of the repair plate is considered, meanwhile, the skull repair plate can be suitable for suture curved needles with different arcs and radians, the suspension threading difficulty is reduced, the operation time is shortened, and the operation satisfaction degree of a patient is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of medical apparatus and instruments, more particularly to a skull repair plate. BACKGROUND

[0002] The surgical operation for repairing the skull defect caused by brain trauma, craniotomy and the like is called skull repair operation, mainly to solve the problems of no effective protection of brain tissue in the defect area, blood supply disorder, abnormal cerebrospinal fluid circulation and the like, and at the same time, the problem of appearance repair and shaping also needs to be solved. The skull repair operation is one of the most common operations in neurosurgery, and the main purpose is to prevent brain tissue from being damaged again, restore the skull cavity airtightness and treat skull defect syndrome.

[0003] Polyether ether ketone (PEEK) has similar biomechanical properties to cortical bone, good biological compatibility, heat resistance and ion radiation resistance and the like, and through computer-aided design, the implant prepared from PEEK can accurately repair craniofacial bone defects, and the incidence of complications such as hematoma, infection, implant exposure and fracture in the operation area after the operation is low, so that the use amount of PEEK in the clinical application of skull repair is increasing day by day. Although the use of PEEK skull plate for skull defect reconstruction has been widely supported in the clinic, many complications of using this material have also appeared, therefore, the design of PEEK skull plate needs to be gradually improved to reduce the incidence of complications.

[0004] In order to fully drain blood and cerebrospinal fluid, the perforated PEEK skull plate is widely used in the clinic at present, that is, the normal vertical circular flow-through hole on the PEEK skull plate is used to realize the drainage of the accumulated liquid. After implanting the PEEK skull plate, since the shaped PEEK skull plate has a thickness close to that of the autologous skull, it is difficult to use the arc-shaped bending needle to tightly suspend the temporal muscle on the PEEK skull plate through the normal vertical flow-through hole in the clinic, and if the temporal muscle is not well suspended and attached, it is easy to slide down and accumulate, affecting the appearance, and the effect of restoring the appearance of the patient cannot be achieved. In order to suspend and fix the temporal muscle, the temporal muscle is usually suspended through the flow-through hole in the clinic, and the specific operation process is as follows: first, thread the flow-through hole at one or n positions of the PEEK skull plate from inside to outside, then implant the PEEK skull plate with the threaded line into the defect, and then pull and suspend the temporal muscle through the line, which not only increases the time of the doctor threading the line, but also may cause the PEEK skull plate to move abnormally under the pulling of the suture line after threading the line, affecting the positioning or the visual judgment of the doctor, and increasing the risk of the implanting process of the PEEK skull plate. SUMMARY

[0005] The utility model discloses a skull repair plate, which comprises an implant main body, opposite inner and outer surfaces, a through hole penetrating through the implant main body, and a temporal muscle suspension system distributed on the implant main body.

[0006] To solve the above technical problems, the utility model adopts the technical scheme of:

[0007] The utility model provides a skull repair plate, including implant main part is equipped with opposite inner surface and outer surface, the through -hole of penetrating in implant main part and the temporal muscle suspension system of distribution on implant main part, temporal muscle suspension system includes at least one group of temporal muscle suspension structure, temporal muscle suspension structure (300) with the through -hole (200) is independent, does not communicate each other, temporal muscle suspension structure includes first opening, second opening and passageway, first opening and second opening are located on the outer surface, the passageway is obliquely extended to second opening after obliquely downwardly extending from first opening, and the bottom wall of the passageway is a plane and is provided with a spacing between the inner surface.

[0008] The skull repair plate of the utility model can realize liquid drainage through the through hole penetrating through the implant main body; the temporal muscle suspension system is provided, which includes at least one group of temporal muscle suspension structures independent of and not communicating with the through hole, the temporal muscle suspension structure includes the first opening and the second opening on the outer surface of the implant main body, and the passageway formed by obliquely extending downward from the first opening and then obliquely extending upward to the second opening; after implanting the skull repair plate, the suture curved needle is used to enter the passageway from one of the first opening and the second opening, and the suture curved needle is used to pass out of the passageway from the other opening, so that the temporal muscle can be quickly fixed on the skull repair plate. In the utility model, the passageway of the temporal muscle suspension structure does not penetrate the skull repair plate, and the bottom wall of the passageway is a plane, so that the skull repair plate can be widely applied to suture curved needles with different arc shapes and radii while ensuring the mechanical strength of the skull repair plate, the suture curved needle can contact the bottom wall of the passageway earlier, the direction of the suture curved needle in the passageway can be easily adjusted, the suture curved needle can pass through the passageway more smoothly, the time for the doctor to pass the thread and suspend the temporal muscle is reduced, the difficulty of passing the thread and suspending the temporal muscle is reduced, the operation time is shortened, the risk of the appearance of the temporal muscle on both sides of the temporal part of the patient being asymmetric after the operation is reduced, the operation satisfaction of the patient is improved, and the problem of needing to pass the thread and suspend the temporal muscle through the normal through hole before the operation is solved. In addition, the through hole and the passageway of the utility model are independent and do not communicate with each other, so that the difficulty of production and processing can be effectively reduced, and the mutual interference between the temporal muscle suspension operation and the liquid drainage operation can be effectively avoided.

[0009] Further, the channel comprises a first channel communicating with the first opening, a second channel communicating with the second opening, and a connecting portion communicating between the first channel and the second channel, the first opening and the second opening are separated by a spacing portion, and a first included angle is formed between the axis of the first channel and the axis of the second channel. The first opening extends obliquely downward from the outer surface of the implant body to form a first channel that does not penetrate the inner surface of the implant body, the second opening extends obliquely downward from the outer surface of the implant body to form a second channel that does not penetrate the inner surface of the implant body, the first opening and the second opening are separated by a spacing portion, and the first channel and the second channel are communicated by the connecting portion. The arrangement of such a channel can smoothly pass through the suture curved needle of different arc shapes and radii.

[0010] Further, the first channel and the second channel are both linear and symmetrically arranged, the inner diameter of the first channel and the second channel is 1mm-5mm, preferably 2mm-3mm, more preferably 2.5mm; and / or, the first end point of the bottom wall of the connecting portion is located at the intersection of the bottom intersection line of the first channel and the extension line of the top intersection line of the second channel, and the second end point of the bottom wall of the connecting portion is located at the intersection of the bottom intersection line of the second channel and the extension line of the top intersection line of the first channel, that is, the intersection of the central axis of the first channel and the central axis of the second channel is located on the line segment formed by the first end point and the second end point of the bottom wall of the connecting portion. Such a design can maximize the utilization value of the channel, making it more widely applicable to suture curved needles of different arc shapes, radii and sizes in clinical surgery, and reducing the loss of mechanical strength of the skull repair plate; wherein the intersection plane adopted by each intersection line is the plane formed by the central axis of the first channel and the central axis of the second channel.

[0011] Further, the first opening and the second opening are both elliptical or circular, the cross section of the first channel and the second channel is both elliptical or circular, the longitudinal section of the spacing portion is a first triangle, and the longitudinal section of the connecting portion is a second triangle. The inclined surface of the first triangle plays a guiding role in the penetration of the suture curved needle.

[0012] Further, the height of the first triangle is greater than or equal to 1 / 3 of the thickness of the implant body and less than 1 / 2 of the thickness of the implant body; the height of the second triangle is greater than or equal to 1 / 2 of the inner diameter of the first channel and the second channel and less than the inner diameter of the first channel and the second channel; and the spacing is less than 1 / 2 of the thickness of the implant body.

[0013] Further, a distance between the first opening and the second opening is 1mm-9mm; and / or, an angle range of the first included angle is 30°-179°, preferably 120°-160°.

[0014] The structure, size and angle design of the above-mentioned channel can facilitate smooth passing of various different arc-shaped, radian and size suture curved needles in clinical use, can more widely adapt to various suture curved needles commonly used in clinical use, and can enable the skull repair plate to have better mechanical properties, and meet the clinical requirements.

[0015] Further, the temporal muscle suspension system comprises a plurality of groups of temporal muscle suspension structures, and a second included angle is formed between projection lines of axes of adjacent channels in a sagittal plane. The temporal muscle can be suspended at multiple positions by using sutures passing through the plurality of groups of temporal muscle suspension structures, and the projection lines of the adjacent sutures in the sagittal plane have an included angle, so that the temporal muscle can be fixed in multiple directions relative to the skull repair plate, and the surgical effect of temporal muscle traction and suspension is improved.

[0016] Further, the projection line direction of the axis of each group of channels on the outer surface is parallel or identical to the growth and arrangement divergence direction of the temporal muscle. The direction of the suture conforms to the generation and divergence direction of the temporal muscle, and the surgical effect of temporal muscle traction and suspension can be further improved.

[0017] Further, the dura mater suspension system comprises at least one group of dura mater suspension structures, the dura mater suspension structure comprises a through hole and a group of marking structures distributed beside the through hole, the marking structure comprises a first marking structure arranged on the inner surface and a second marking structure arranged on the outer surface, and the normal lines of the first marking structure and the second marking structure coincide. The first marking structure and the second marking structure are symmetrically arranged on the inner surface and the outer surface of the implant main body, can help the doctor to clearly identify the position needing threading from the inner surface or the outer surface, so that the doctor can accurately thread the positioned through hole from the inside to the outside, and the dura mater is suspended.

[0018] Further, the first marking structure comprises at least one first groove, and the second marking structure comprises at least one second groove. The first groove as the first marking structure and the second groove as the second marking structure have good marking effect and are simple to process. The number of the first groove and the second groove is preferably two, and they are symmetrically distributed on both sides of the through hole, so that the doctor can better lock the through hole needing threading.

[0019] Further, the first groove and the second groove are one or a combination of circular groove, trapezoidal groove, conical groove or polygonal groove.

[0020] Compared with the prior art, the utility model has the beneficial effects that:

[0021] The skull repair plate of the utility model, through setting up the temporal muscle suspension system including the channel which does not penetrate the skull repair plate and the bottom wall is plane, can be more widely applicable to different arc shape, camber and size suture curved needle relative to U-shaped channel while giving consideration to the skull repair plate mechanical strength, and make suture curved needle can contact the bottom wall of the channel earlier, more easily adjust the direction of suture curved needle in the channel, facilitate suture curved needle more smoothly through the channel, reduced the time of doctor threading suspension, reduced the difficulty of suspension threading, shortened the operation time, reduced the risk of postoperative temporal two sides appearance asymmetry of patient caused by temporal muscle under sliding accumulation at the same time, improved the operation satisfaction of patient, solved the problem of needing to thread suspension temporal muscle through normal vertical through hole before operation in the past;In addition, the through hole and the channel are independent and not communicated with each other in the utility model, can effectively reduce the difficulty of production and processing and effectively avoid the mutual interference between temporal muscle suspension operation and effusion drainage operation;Moreover, the structure of temporal muscle suspension system is simple, easy to process.

[0022] The skull repair plate of the utility model, through setting up the dura mater suspension system including the marking structure, can let the doctor plan and determine the position of dura mater suspension in advance, and can help the doctor to clearly identify the through hole for dura mater suspension from the inner surface and the outer surface of the implant main body in the operation, facilitate the doctor to accurately thread the positioned through hole from the inner surface of the implant main body, reduce the threading time and operation time. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the structure schematic view of the skull repair plate in embodiment one;

[0024] Figure 2 It is the structure schematic view of a group of temporal muscle suspension structures in embodiment one;

[0025] Figure 3 It is the structure schematic view of a group of temporal muscle suspension structures in embodiment two;

[0026] Figure 4 It is the distribution schematic view of temporal muscle suspension system in embodiment three;

[0027] Figure 5 It is the distribution schematic view of temporal muscle suspension system in embodiment four;

[0028] Figure 6 Structure diagram of the inner surface of the skull repair plate in Example Five;

[0029] Figure 7 Structure diagram of the outer surface of the skull repair plate in Example Five;

[0030] Figure 8 Structure diagram of the dura mater suspension system in Example Five;

[0031] Figure 9 Structure diagram of the skull repair plate installed on the skull in Example Five;

[0032] In the drawings: 100, implant body; 110, inner surface; 120, outer surface; 200, through hole; 300, temporal muscle suspension structure; 310, first opening; 320, second opening; 330, channel; 331, first channel; 332, second channel; 333, connecting part; 334, spacing part; 400, dura mater suspension structure; 410, first marking structure; 420, second marking structure; 500, skull. DETAILED DESCRIPTION

[0033] The utility model will be further described below in combination with specific embodiments. Among them, the drawings are only used for example description, and the representation is only a schematic diagram, and cannot be understood as the limitation of the patent; in order to better illustrate the embodiment of the utility model, some components of the drawings will be omitted, enlarged or reduced, and the size of actual product is not represented; for those skilled in the art, it is understandable that some well-known structures and their description in the drawings can be omitted.

[0034] The same or similar reference numerals in the drawings of the embodiments of the utility model correspond to the same or similar components; in the description of the utility model, it is understood that if the orientation or position relationship indicated by the terms "upper", "lower", "left", "right" and the like is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the device or element indicated must have a particular orientation, a particular orientation and operation, therefore the position relationship description term in the drawings is only used for example description, and cannot be understood as the limitation of the patent, for the ordinary skilled in the art, the specific meaning of the above terms can be understood according to the specific situation.

[0035] Example One

[0036] This embodiment is the first embodiment of the skull repair plate, as shown in Figure 1 , Figure 2As shown, the skull repair plate of the embodiment includes an implant body 100, which is provided with opposite inner and outer surfaces 110 and 120; a through hole 200 penetrating the implant body 100; and a temporal muscle suspension system distributed on the implant body 100, the temporal muscle suspension system including at least one set of temporal muscle suspension structures 300, the temporal muscle suspension structures 300 being independent of and not communicated with the through hole 200; the temporal muscle suspension structure 300 including a first opening 310, a second opening 320 and a channel 330, the first and second openings 310 and 320 being located on the outer surface 120, the channel 330 extending obliquely downward from the first opening 310 and then extending obliquely upward to the second opening 320, the bottom wall of the channel 330 being a plane and being spaced apart from the inner surface 110 by a distance H3. In the embodiment, the temporal muscle suspension system includes four sets of temporal muscle suspension structures 300, Figure 1 The dashed circle represents one of the temporal muscle suspension structures 300.

[0037] In the embodiment, the through hole 200 penetrating the implant body 100 can be used for fluid drainage; the channel 330 extends obliquely downward from the first opening 310 and then extends obliquely upward to the second opening 320, the bottom wall of the channel 330 being a plane and not penetrating the inner surface 110, after the skull repair plate is implanted, a suture curved needle is used to enter the channel 330 from one of the first and second openings 310 and 320 and to exit the channel 330 from the other opening, so that the temporal muscle can be quickly fixed on the skull repair plate; the through hole 200 and the channel 330 are independent of and not communicated with each other.

[0038] The implant body 100 is formed of PEEK or a high polymer material similar to PEEK in performance, and is generally formed by 3D printing or injection molding; in order to fully drain blood and cerebrospinal fluid, the through hole 200 of the embodiment is a circular through hole 200, but the shape of the through hole 200 is a preferred shape for facilitating processing and fully draining blood and cerebrospinal fluid, and does not limit the present application; the shape of the implant body 100 is basically the same as that of the skull 500 defect.

[0039] In addition, in the utility model, the through holes 200 are uniformly distributed on the implant main body 100, each through hole 200 is a straight hole perpendicular to the normal of the skull repair plate, the aperture of each through hole 200 can be equal, or can be set to be unequal in size according to the drainage requirement, no matter whether the aperture of each through hole 200 is equal or unequal, the aperture of each through hole 200 is generally set to be 1mm-5mm, preferably 2mm-4mm. The gap between each through hole 200 or the gap between each through hole 200 and the edge of the skull repair plate is 8mm-20mm, preferably 10mm. In the embodiment, the gap between each through hole 200 is specifically the distance between the centers of each through hole 200, and the gap between each through hole 200 and the edge of the skull repair plate is specifically the distance between the center of each through hole 200 and the edge of the skull repair plate.

[0040] The skull repair plate of the embodiment can be used to quickly fix the temporal muscle on the skull repair plate after implanting the skull repair plate by using the suture bending needle to enter the channel 330 from one of the first opening 310 and the second opening 320 and to pass out of the channel 330 from the other opening. The channel of the temporal muscle suspension structure in the utility model does not penetrate the skull repair plate and the bottom wall thereof is a plane, so that the channel can be more suitable for suture bending needles of different arc shapes and radii than the U-shaped channel while ensuring the mechanical strength of the skull repair plate, and the suture bending can contact the bottom wall of the channel earlier, the direction of the suture bending needle in the channel is easier to adjust, the suture bending needle can pass through the channel more smoothly, the time for the doctor to thread and suspend is reduced, the difficulty of threading and suspending is reduced, the operation time is shortened, the risk of postoperative asymmetry of the temporal part of the patient caused by the accumulation of the temporal muscle is reduced, the operation satisfaction of the patient is improved, and the problem of needing to thread and suspend the temporal muscle through the normal vertical through hole 200 before the operation is solved. In addition, the through hole 200 and the channel 330 of the utility model are independent and not communicated with each other, so that the difficulty of production and processing can be effectively reduced, and the mutual interference between the suspension operation and the effusion drainage operation can be avoided.

[0041] Embodiment two

[0042] The embodiment is the second embodiment of the skull repair plate, and is similar to the first embodiment, except that the channel 330 of the skull repair plate of the embodiment comprises a first channel 331 communicated with the first opening 310, a second channel 332 communicated with the second opening 320, and a connecting part 333 communicated between the first channel 331 and the second channel 332, the first opening 310 and the second opening 320 are separated by a spacing part 334, and a first included angle is formed between the axis of the first channel 331 and the axis of the second channel 332, as shown in Figure 3 .

[0043] The first opening 310 extends obliquely downward from the outer surface 120 of the implant body 100 to form a first channel 331 that does not penetrate the inner surface 110 of the implant body 100, and the second opening 320 extends obliquely downward from the outer surface 120 of the implant body 100 to form a second channel 332 that does not penetrate the inner surface 110 of the implant body 100. The first opening 310 and the second opening 320 are separated by a spacing portion 334, and the first channel 331 and the second channel 332 are connected by a connecting portion 333 to facilitate the smooth passage of the curved needle.

[0044] The first channel 331 and the second channel 332 are both linear and symmetrically arranged, and the inner diameter of the first channel 331 and the second channel 332 is 1mm-5mm, preferably 2mm-3mm, and more preferably 2.5mm; and / or, the first end point A of the bottom wall of the connecting portion 333 is located at the intersection of the bottom intersection line of the first channel 331 and the extension line of the top intersection line of the second channel 332, and the second end point B of the bottom wall of the connecting portion 333 is located at the intersection of the bottom intersection line of the second channel 332 and the extension line of the top intersection line of the first channel 331, i.e. the intersection of the central axis of the first channel 331 and the central axis of the second channel 332 is located on the line segment formed by the first end point A and the second end point B of the bottom wall of the connecting portion 333, as shown in Figure 3 . Figure 3 Specifically, it is a cross-sectional view along the plane formed by the central axis of the first channel 331 and the central axis of the second channel 332, and the intersection lines of the first channel 331 and the second channel 332 are both top intersection lines and bottom intersection lines, and the top intersection line is parallel to the bottom intersection line and located above; the intersection line of the bottom wall of the connecting portion 333 is a line segment, and the first end point A and the second end point B are the two end points of the line segment. Such a design can maximize the utilization value of the channel, making it more widely applicable to different curved, curved and sized curved needles in clinical surgery, and reducing the loss of mechanical strength of the skull repair plate. It should be noted that in this embodiment, the first channel 331 and the second channel 332 are preferably arranged symmetrically, and the first channel 331 and the second channel 332 can also be arranged asymmetrically.

[0045] The first opening 310 and the second opening 320 are both elliptical, the cross section of the first channel 331 and the second channel 332 is also elliptical, the longitudinal section of the spacing portion 334 is a first triangle, and the longitudinal section of the connecting portion 333 is a second triangle. The slope of the first triangle plays a guiding role in the entry of the curved needle. Among them, the cross section is a plane parallel to the sagittal plane, the longitudinal section is a plane perpendicular to the cross section, and the sagittal plane is a plane of symmetry of the skull left-right symmetry. In addition, the first opening 310 and the second opening 320 can also be circular, and the cross section of the first channel 331 and the second channel 332 can also be circular.

[0046] The height H1 of the first triangle is greater than or equal to 1 / 3 of the thickness of the implant body 100 and less than 1 / 2 of the thickness of the implant body 100; the height H2 of the second triangle is greater than or equal to 1 / 2 of the inner diameters of the first channel 331 and the second channel 332 and less than the inner diameters of the first channel 331 and the second channel 332; and the spacing H3 is less than 1 / 2 of the thickness of the implant body 100.

[0047] In addition, in the embodiment, the distance between the first opening 310 and the second opening 320, that is, the maximum length of the spacing portion 334, is 1 mm-9 mm, and is preferably 5 mm-7 mm; and / or the first included angle is in the range of 30°-179°, and is preferably 120°-160°, and can be further preferably 160°.

[0048] The structure, size and angle design of the above-mentioned channel can facilitate the smooth passing of different arc shapes, arc degrees and sizes of the suture curved needle in clinical use, and can more widely adapt to different arc shapes, arc degrees and sizes of the suture curved needle in clinical surgery, and can make the skull repair plate maintain good mechanical properties, and meet the clinical requirements.

[0049] The specific implementation steps of the embodiment are similar to those of Embodiment One, except that:

[0050] In the embodiment, the channel 330 is provided, after the implantation of the skull repair plate, the suture curved needle enters the first channel 331 from the first opening 310, passes through the connecting portion 333, and the second channel 332 from the second opening 320, or enters the second channel 332 from the second opening 320, passes through the connecting portion 333, and the first channel 331 from the first opening 310, so as to quickly fix the temporal muscle on the skull repair plate. The first channel 331 and the second channel 332 are designed in a straight line, which is more easy to adjust the direction of the suture curved needle with different arc shapes or arc degrees in the channel, facilitates the suture curved needle to pass through the channel more smoothly, reduces the time of the doctor to pass the thread and hang, reduces the difficulty of hanging and passing the thread, shortens the operation time, reduces the risk of the patient's postoperative temporal asymmetry caused by the accumulation of the temporal muscle, improves the patient's operation satisfaction, and solves the problem of needing to pass the thread and hang the temporal muscle through the normal vertical through hole 200 before the operation.

[0051] Embodiment Three

[0052] The third embodiment of the skull repair plate is similar to Embodiment Two, except that the temporal muscle suspension structure 300 is multiple groups, preferably four groups. That is, the first opening 310, the second opening 320 and the channel 330 are multiple groups, and the axis lines of the adjacent channels 330 form a second included angle between the projection lines in the sagittal plane, and preferably, the projection line direction of the axis lines of each group of channels 330 is parallel or the same as the divergent direction of the temporal muscle growth arrangement, such as Figure 4As shown in the figure. In the implementation of the embodiment, the temporal muscle can be suspended at multiple positions by using sutures through four groups of temporal muscle suspension structures, and the adjacent sutures have an included angle between the projection lines in the sagittal plane, so that the temporal muscle is fixed in multiple directions relative to the skull repair plate, improving the surgical effect of the temporal muscle traction suspension.

[0053] The temporal muscle is a fan-shaped broad muscle located subcutaneously in the temporal fossa. It originates from the temporal fossa, specifically at the temporal fossa of the squamous part of the temporal bone, then extends downward in a fan shape, passes through the deep layer of the zygomatic arch, and finally stops at the coronoid process or margin of the mandible. In the resting state, the temporal muscle is the main muscle that maintains the stability of the mandibular position. The projection line direction of the axis of the channel 330 on the outer surface 120 is parallel or identical to the divergent direction of the growth arrangement of the temporal muscle. The number of channels 330 is 1-N groups, preferably 3-7 groups. The axes of the multiple groups of channels 330 diverge in a fan shape in the projection line direction of the outer surface 120, so that the direction of the suture conforms to the generation and divergence direction of the temporal muscle, which can further improve the surgical effect of the temporal muscle traction suspension. In this embodiment, the number of channels 330 is 4 groups.

[0054] The specific implementation steps of this embodiment are similar to those of Embodiment Two, except that:

[0055] After implanting the skull repair plate, different arc or arc suture curved needles can be used to quickly fix the temporal muscle along the divergent direction of the overall growth arrangement of the temporal muscle on the skull repair plate through multiple groups of temporal muscle suspension structures 300, which can achieve better surgical effect of temporal muscle traction suspension, further reduce the risk of postoperative asymmetry of the temporal part on both sides of the patient caused by the accumulation of the temporal muscle sliding down, and further improve the patient's satisfaction with the operation.

[0056] Embodiment Four

[0057] This embodiment is the fourth embodiment of the skull repair plate. This embodiment is similar to Embodiment Three, except that the temporal muscle suspension system of this embodiment includes multiple groups of temporal muscle suspension structures 300 with multiple angles, forming a traction suspension structure arranged in multiple angles, but the overall temporal muscle suspension system composed of multiple groups of temporal muscle suspension structures 300 is still distributed in the fan-shaped divergent direction conforming to the overall growth arrangement of the temporal muscle on the implant main body 100, as shown in the figure. Figure 5 In this embodiment, the multiple groups of channels 330 of the temporal muscle suspension system are distributed in multiple directions of the skull repair plate, and the temporal muscle is fixed in multiple angles with the skull plate at different positions and in different directions, which can further improve the surgical effect of the temporal muscle traction suspension.

[0058] Specifically, seven groups of multi-angle distributed temporal muscle suspension structures 300 are provided in this embodiment, but the overall temporal muscle suspension system composed of the seven groups of temporal muscle suspension structures 300 is still distributed in the fan-shaped divergent direction conforming to the overall growth arrangement of the temporal muscle on the implant main body 100, as shown in the figure. Figure 5 ​

[0059] The specific implementation steps of this embodiment are similar to those of Embodiment Three, except that:

[0060] In this embodiment, the multiple groups of channels 330 of the temporal muscle suspension system are distributed in multiple directions of the skull repair plate, and the temporal muscle is fixed at multiple angles at different positions and in different directions with the skull plate, thereby minimizing the risk of postoperative sinking, displacement, and uneven suspension of the temporal muscle, and maximizing the solution to the problems of facial morphology changes, facial deformities, and the impact on appearance and self-confidence that may be caused by poor temporal muscle suspension.

[0061] Embodiment Five

[0062] This embodiment is a fifth embodiment of the skull repair plate, which is similar to any one of Embodiments One to Four, except that this embodiment further comprises a dura mater suspension system. The dura mater suspension system comprises at least one group of dura mater suspension structures 400, and each dura mater suspension structure 400 comprises a through hole 200 and a group of marking structures distributed around the through hole 200. The marking structures comprise a first marking structure 410 arranged on the inner surface 110 and a second marking structure 420 arranged on the outer surface 120, and the normals of the first marking structure 410 and the second marking structure 420 coincide. In this embodiment, the first marking structure 410 and the second marking structure 420 are symmetrically arranged on the inner surface 110 and the outer surface 120 of the implant body 100, which can help the doctor clearly identify the position that needs to be threaded from the inner surface or the outer surface, thereby facilitating the doctor to accurately thread the positioned through hole from the inside to the outside for the suspension of the dura mater, as shown in Figures 6 to 9 In this embodiment, the first marking structure 410 and the second marking structure 420 can be grooves, protrusions, or other structures that can serve as markers.

[0063] The dura mater is the next level of the skull repair plate, so the operation of the dura mater suspension needs to be threaded before the skull repair plate is implanted. Therefore, the primary problem is not the ease of threading on the skull repair plate, but the selection and identification of the dura mater suspension point. The dura mater suspension requires that the suspension position be distributed uniformly and reasonably. When designing the skull repair plate, it is necessary to communicate with the doctor and mark the holes on the skull repair plate that need to be used for dura mater threading suspension according to the doctor's clinical experience and relevant requirements, so as to reduce the doctor's consideration time for the distribution of the suspension hole position during the operation. The inner and outer markings can help the doctor clearly identify the position that needs to be threaded from the inner surface or the outer surface, and the threading time can also be greatly reduced. In addition, the dura mater suspension can prevent the dura mater from being stripped to produce a subdural hematoma, and can also reduce the intercavum gap between the dura mater and the skull repair plate, thereby reducing the subdural effusion caused by the excessive intercavum gap, and having a good effect on the recovery of the patient.

[0064] Specifically, in the embodiment, the first marking structure 410 includes two first grooves, the second marking structure 420 includes two second grooves, and the first grooves and the second grooves are distributed on both sides of the through hole 200, as shown in Figures 6 to 9 Figure 9 In the embodiment, the dashed line encloses one set of temporal muscle suspension structure 300 and one set of dura mater suspension structure 400. The first groove as the first marking structure 410 and the second groove as the second marking structure 420 have good marking effect and are easy to process. However, in order to avoid the opening of the first groove and the second groove affecting the strength of the implant body 100, the sum of the depths of the first groove and the second groove should be less than the thickness of the implant body 100, more specifically, the sum of the depths of the first groove and the second groove can be less than half of the thickness of the implant body 100. It should be noted that in the embodiment, the first marking structure 410 and the second marking structure 420 are set as two grooves in order to facilitate the doctor to lock the through hole that needs to be threaded more accurately and to avoid the protrusion being touched from the outside after the operation. The first marking structure 410 and the second marking structure 420 can also be set as one groove or more than two grooves, or other structures that can play a marking role.

[0065] In the embodiment, the first groove and the second groove are one or a combination of circular grooves, trapezoidal grooves, conical grooves or polygonal grooves. The first groove and the second groove can be grooves of the same shape or grooves of different shapes. The specific shape of the first groove and the second groove is not limited by the utility model, but the area of the first groove and the second groove should be equal to or slightly smaller than the area of the through hole 200 corresponding to the first groove and the second groove.

[0066] In the embodiment, one set of dura mater suspension structure 400 includes a through hole 200 and grooves distributed on both sides of the through hole 200, the first groove is arranged on the inner surface 110, and the second groove is arranged on the outer surface 120. The shapes of the first grooves and the second grooves of different sets of dura mater suspension structure 400 can be the same or different. In the embodiment, the number and position of the dura mater suspension structure 400 can be adjusted according to actual conditions.

[0067] The specific implementation steps of the embodiment are similar to any one of embodiments one to four, and the difference is that:

[0068] By setting the dura mater suspension system 400 including the marking structure, the doctor can clearly identify the through hole for dura mater suspension from the inner surface 110 and the outer surface 120 of the implant body 100 during the operation, which facilitates the doctor to accurately thread the positioned through hole from the inner surface of the implant body, for the suspension of the dura mater, and reduces the threading time and the operation time.

[0069] ​In the specific contents of the foregoing specific embodiments, each technical feature can be combined arbitrarily without contradiction, and to make the description brief, all possible combinations of the foregoing technical features are not described, however, as long as the combinations of the technical features do not exist contradiction, it should be considered that it is within the scope of the present disclosure.

[0070] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the implementation manners of the present application. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and also impossible to exhaust all the implementation manners. Any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application claims.

Claims

1. A skull repair plate, characterized by, The implant body (100) is provided with opposite inner and outer surfaces (110, 120); a through hole (200) is formed through the implant body (100); and a temporalis muscle suspension system is distributed on the implant body (100), the temporalis muscle suspension system comprising at least one set of temporalis muscle suspension structures (300), the temporalis muscle suspension structures (300) being independent of and not in communication with the through hole (200). The temporalis muscle suspension structure (300) comprises a first opening (310), a second opening (320), and a channel (330), the first opening (310) and the second opening (320) are both located on the outer surface (120), the channel (330) extends obliquely downward from the first opening (310) and then obliquely upward to the second opening (320), the bottom wall of the channel (330) is a plane and is spaced apart from the inner surface (110). The channel (330) comprises a first channel (331) in communication with the first opening (310), a second channel (332) in communication with the second opening (320), and a connecting portion (333) connecting between the first channel (331) and the second channel (332), the first opening (310) and the second opening (320) are separated by a spacing portion (334), a first included angle is formed between the axis of the first channel (331) and the axis of the second channel (332). The first channel (331) and the second channel (332) are both linear and symmetrically arranged, the inner diameter of the first channel (331) and the second channel (332) is 1-5 mm; and / or, the first end point of the bottom wall of the connecting portion (333) is located at the intersection of the bottom intersection line of the first channel (331) and the extension line of the top intersection line of the second channel (332), and the second end point of the bottom wall of the connecting portion (333) is located at the intersection of the bottom intersection line of the second channel (332) and the extension line of the top intersection line of the first channel (331). The first opening (310) and the second opening (320) are both elliptical or circular, the cross section of the first channel (331) and the second channel (332) is both elliptical or circular, the longitudinal section of the spacing portion (334) is a first triangle, and the longitudinal section of the connecting portion (333) is a second triangle.

2. The skull repair plate according to claim 1, characterized in that The height of the first triangle is greater than or equal to 1 / 3 of the thickness of the implant body (100) and less than 1 / 2 of the thickness of the implant body (100); the height of the second triangle is greater than or equal to 1 / 2 of the inner diameter of the first channel (331) and the second channel (332) and less than the inner diameter of the first channel (331) and the second channel (332); 3. The skull repair plate of claim 2, wherein The spacing is less than 1 / 2 of the thickness of the implant body (100).

4. The skull repair plate of claim 2, wherein ​ 5. The skull repair plate according to claim 4, characterized in that ​ ​ 6. The skull repair plate of claim 2, wherein The distance between the first opening (310) and the second opening (320) is 1mm-9mm; and / or, the first included angle ranges from 30° to 179°.

7. The skull repair plate of claim 1, wherein The temporal muscle suspension system comprises a plurality of groups of temporal muscle suspension structures (300), and the axes of adjacent channels (330) form a second included angle between the projection lines in the sagittal plane.

8. The skull repair plate of claim 7, wherein, The projection line direction of the axis of each group of channels (330) on the outer surface (120) is parallel or identical to the divergence direction of the temporal muscle growth arrangement.

9. The skull repair plate according to any one of claims 1 to 8, characterized in that Further comprising a dura mater suspension system, the dura mater suspension system comprises at least one group of dura mater suspension structures (400), the dura mater suspension structures (400) comprise a through hole (200) and a group of marking structures distributed beside the through hole (200), the marking structures comprise first marking structures (410) arranged on the inner surface (110) and second marking structures (420) arranged on the outer surface (120), and the normals of the first marking structures (410) and the second marking structures (420) coincide.

10. The skull repair plate of claim 9, wherein, The first marking structures (410) comprise at least one first groove, and the second marking structures (420) comprise at least one second groove.

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