Cheekbone fracture reduction clamping device

Abstract

The invention relates to the technical field of maxillofacial surgery devices, in particular to a cheekbone fracture reduction clamping device. The cheekbone fracture reduction clamping device comprises a support, a first clamping assembly and a second clamping assembly, the support is of a rectangular frame structure, and the first clamping assembly and the second clamping assembly are used for being connected to the rectangular frame. The first clamping assembly and the second clamping assembly protrude from the same side of the support to form a first clamping part and a second clamping part respectively, the first clamping part is used for abutting against the temporal surface of the cheekbone, the second clamping part is used for abutting against the orbital surface of the cheekbone, and the first clamping part and the second clamping part are matched to provide stable clamping force. Multi-direction traction of the cheekbone body is achieved, so that the cheekbone is clamped to assist restoration, and it is guaranteed that an operation is convenient, safe and stable.

Description

Technical Field

[0001] The present application relates to the technical field of maxillofacial surgical devices, and in particular to a zygomatic bone fracture reduction and clamping device. Background Art

[0002] The zygomatic bone is one of the skull bones, located in the front of the middle of the face and outside and below the eye sockets. It is irregularly diamond-shaped and forms a bony protrusion on the cheek. The zygomatic bone has four faces: the zygomatic orbital face, the temporal face, the maxillary sinus face, and the buccal face; they are connected to the frontal bone, maxilla, temporal bone, and greater wing of the sphenoid bone through four protrusions, namely the frontosphenoid process, the maxillary process, the temporal process, and the orbital process.

[0003] Zygomatic bone fracture is a common maxillofacial trauma. The force that causes the trauma mainly causes the zygomatic body to shift inward, backward, and / or downward, and is often accompanied by rotational displacement, resulting in collapse and deformity of the zygomatic process. After the fracture, many patients experience functional disorders or appearance deformities such as diplopia, orbital depression, orbital rim step deformity, eyeball retraction, limited mouth opening, and bilateral facial asymmetry. In severe cases, they even have difficulty eating, which seriously affects the patient's quality of life. Therefore, for patients with zygomatic bone fractures with the above abnormalities, surgical reduction and internal fixation are often required.

[0004] Because the zygomatic bone has an irregular shape and is connected to the maxilla internally, the frontal bone above, the temporal bone by the zygomatic arch, and the greater wing of the sphenoid bone posteriorly, clinically, the reduction of zygomatic bone fractures requires that the above four displaced areas be well positioned and aligned, that is, the zygomatic bone-maxillary end, the zygomatic bone-frontal bone end, the zygomatic bone-temporal bone end, and the zygomatic bone-greater wing end, a total of four ends must be reduced at the same time to obtain better anatomical reduction and functional recovery.

[0005] During the operation, in order to achieve the reduction of the four ends of the zygomatic bone, the zygomatic bone must first be clamped well and stably. Unlike other regular bones, the zygomatic bone has an irregular shape. At present, there is no good device to clamp the zygomatic bone during surgery. The tools used to reduce the zygomatic bone fracture mainly rely on retractors or crowbars to pull out or pry out the sunken zygomatic bone and then fix it. Although these tools have played a certain role, the reduction surgery through pulling and prying is difficult to operate, time-consuming and laborious, and is a huge challenge for surgeons; in addition, pulling and prying can only achieve force and reduction in one direction, and cannot provide multi-directional force. Therefore, it is often difficult to achieve accurate reduction of the four ends of the zygomatic body during surgery, and the final zygomatic fixation is often very difficult due to inaccurate reduction. Some doctors also proposed using bone needles to penetrate the zygomatic body, or using screws (knife) to drill into the zygomatic body, and by pulling the bone needles or screws, to enhance the clamping of the zygomatic body, but the reduction and clamping effect of this operation is not good, and the zygomatic body is severely damaged, and the facial skin is left with puncture holes, affecting the patient's appearance.

[0006] With the development of society, people have higher and higher requirements for facial appearance and health, and traditional surgical reduction devices can no longer meet the needs of doctors and patients. Therefore, it is urgent to develop a non-invasive clamping tool that adapts to the zygomatic bone morphology and can stably clamp the zygomatic bone to achieve accurate reduction of the four ends of the zygomatic bone. Summary of the invention

[0007] In view of the above-mentioned shortcomings of the prior art, the purpose of the present application is to provide a zygomatic fracture reduction clamping device.

[0008] The clamping tools used in zygomatic fracture reduction surgery are difficult to operate, have a single direction of action, cause great harm to patients, and are imprecise and unstable in reduction. The zygomatic fracture reduction clamping device described in this application can fit with the temporal surface and orbital surface of the zygomatic bone, provide a stable clamping force, achieve multi-directional traction on the zygomatic body, and ensure that the surgery is convenient, safe, and stable.

[0009] In zygomatic bone fracture reduction surgery, the zygomatic bone usually needs to be clamped first and then clamped to the reduction position. When the zygomatic bone is clamped by a clamping tool with a regular shape, the irregular part and the clamping part cannot fit completely together, and there is a gap, which causes the zygomatic bone to shake or fall off the clamping tool during the clamping process, affecting the efficiency and safety of the operation.

[0010] In view of the above problems, the present invention discloses a zygomatic bone fracture reduction and clamping device, which includes a bracket, a first clamping assembly and a second clamping assembly. The bracket is in a rectangular frame structure, the first clamping assembly and the second clamping assembly are respectively used to be connected to the rectangular frame, and the first clamping assembly and the second clamping assembly are respectively protruded on the same side of the bracket to form a first clamping part and a second clamping part, the first clamping part is used to abut the temporal surface of the zygomatic bone, and the second clamping part is used to abut the orbital surface of the zygomatic bone, the first clamping part and the second clamping part cooperate to clamp and fix the zygomatic bone from two relative angles inside and outside, so as to clamp the zygomatic bone and assist in reduction.

[0011] Preferably, the rectangular frame is composed of four frame columns which are connected in sequence and are perpendicular to each other.

[0012] Preferably, the first clamping assembly includes a U-shaped clamping piece, and the U-shaped clamping piece includes a first extension arm, a second extension arm and a connecting portion formed therebetween, the first extension arm is formed with a first limiting hole for a frame column of the frame structure to pass through; the end of the first extension arm is protrudingly formed with a limiting rod perpendicular to it, and the limiting rod is parallel to the frame column for passing through the first limiting hole; the limiting rod is used to pass through and be limited on the frame column so that the first clamping assembly can be moved along the frame column by adjusting the position of the limiting rod; the first clamping portion is arranged close to the free end of the second extension arm.

[0013] Preferably, the second clamping assembly includes an L-shaped motion conductor, a translation adjustment assembly, an angle adjustment assembly and a zygomatic bone adaptation clamp; the L-shaped motion conductor includes a third extension arm and a fourth extension arm connected in sequence, the third extension arm is formed with a second limiting hole for a frame column to pass through; the translation adjustment assembly is fixedly connected to the end of the fourth extension arm; the translation adjustment assembly is used to adjust the translation of the zygomatic bone adaptation clamp; the angle adjustment assembly is used to adjust the angle of the zygomatic bone adaptation clamp; the angle adjustment assembly is connected to the translation output shaft of the translation adjustment assembly, and the zygomatic bone adaptation clamp is arranged on the rotation output shaft of the angle adjustment assembly.

[0014] In the present application, the U-shape refers to two extension arms bending on the same side to form two opposite opening parts, and the middle part connects the two extension arms to form an arc or curved bottom to form the letter U shape.

[0015] In the present application, the L-shape refers to two extension arms connected and perpendicular to each other, forming the letter L shape.

[0016] More preferably, the translation adjustment assembly is a mechanical transmission structure that converts rotation into linear motion.

[0017] In a specific embodiment, the translation adjustment assembly includes a first control member, a transmission screw and a transmission nut. The first control member is fixedly connected to the transmission screw. The transmission screw is matched with a transmission nut. The transmission nut is fixedly connected to the angle adjustment assembly. When the first control member drives the transmission screw to rotate, the transmission screw drives the transmission nut to move along its axial direction, thereby driving the angle adjustment assembly to translate along the direction of the transmission screw.

[0018] More preferably, the angle adjustment assembly is a mechanical transmission structure that converts rotation in a first direction into rotation in a second direction.

[0019] In a specific embodiment, the angle adjustment component includes a second control member, a transmission component, a rotating output shaft and a zygomatic bone adapting clamp, the transmission component includes a worm wheel and a worm that mesh with each other, the second control member is fixedly connected to the worm, the rotating output shaft is fixedly connected to the worm wheel and the zygomatic bone adapting clamp, and when the second control member rotates with the worm, the rotating output shaft is driven by the worm transmission worm wheel to realize the rotation of the zygomatic bone adapting clamp.

[0020] More preferably, the zygomatic bone fracture reduction and clamping device further comprises a fixing member; the fixing member matches with the limiting rod to fix the limiting rod to the frame column.

[0021] Furthermore, the fixing member includes one or more of a nut, a screw, a strap, and a lock.

[0022] In a specific embodiment, the fixing member is a nut, and a thread matching the nut is formed on the limiting rod.

[0023] More preferably, the zygomatic bone fracture reduction and clamping device further includes a connecting rod assembly, wherein the connecting rod assembly forms a lever structure, one end of the lever structure is gap-connected with one end of the connecting portion of the U-shaped clamping member, and the other end of the lever structure is gap-connected with the fourth extension arm of the L-shaped motion transmission member; the fulcrum of the lever structure is arranged on the frame column of the frame structure; the rotation diameter of the lever structure is larger than the frame column of the frame structure; the first clamping assembly and the second clamping assembly are connected by the connecting rod assembly for reverse linkage. For example, in a specific embodiment, when the first clamping assembly moves upward, the second clamping assembly moves downward synchronously, and as long as the first clamping assembly is fixed, the first clamping assembly and the second clamping assembly are both fixed, so that after adjusting the position to fit and clamp the zygomatic bone, the first clamping assembly and the second clamping assembly can be conveniently and synchronously fixed in position, thereby improving the efficiency of the operation.

[0024] Furthermore, the connecting rod assembly includes two connecting plates serving as levers, two sliders and a rotating shaft serving as a rotating support shaft, the rotating shaft passing through a frame column of the frame structure, the two connecting plates being respectively arranged at both ends of the rotating shaft and respectively located on both sides of the frame column; the two sliders are respectively slidably connected between the two connecting plates; the connecting portion of the U-shaped clamp and the fourth extension arm of the L-shaped motion transmission member respectively pass through and are limited on a slider, and are respectively connected with the slider with a gap.

[0025] Furthermore, sliding connection parts are formed at both ends of any slider and a connecting shaft is formed in the middle. The connecting shaft passes through the connecting part of the U-shaped clamp or the fourth extension arm of the L-shaped motion transmission part and is gap connected. The sliding connection part is correspondingly slidably connected with the connecting plate.

[0026] In a specific embodiment, two sliding blocks are respectively arranged close to the ends of the connecting plate.

[0027] In another specific embodiment, more preferably, the end of the third extension arm of the L-shaped motion conductor is protruded to form a second limiting rod perpendicular to it, and the second limiting rod is parallel to the frame column for passing through the second limiting hole; the second limiting rod is used to pass through and be limited on the frame column so that the second clamping assembly can be moved along the frame column by adjusting the position of the second limiting rod.

[0028] More preferably, the first clamping portion is sequentially formed with an arc-shaped separation section and an arc-shaped clamping section located at the end.

[0029] Furthermore, the arc-shaped clamping section is used to match and clamp the temporal surface of the zygomatic bone, and the arc-shaped separation section is used to separate the zygomatic bone from the facial soft tissue.

[0030] Furthermore, the clamping surface of the arc-shaped clamping section and the zygomatic bone contact surface of the arc-shaped separation section form a same smooth arc surface.

[0031] In a specific embodiment, the first clamping portion enters the human body through an intraoral incision, so that the zygomatic bone contact surface of the arc-shaped separation section fits the posterior medial surface of the zygomatic bone, and the clamping surface of the arc-shaped clamping section fits the temporal surface of the zygomatic bone; the soft tissue contact surface of the arc-shaped separation section is arc-shaped, which reduces the cutting friction on the tissue during the separation process of the facial soft tissue and the zygomatic bone; the clamping surface of the arc-shaped clamping section fits the temporal surface of the zygomatic bone, so as to achieve the effect of stably clamping the zygomatic bone deformity, laying a foundation for the stability of the subsequent multi-directional traction of the zygomatic bone.

[0032] The translation adjustment component enables the second clamping component to be adjusted according to application scenarios with different positions of the zygomatic orbital surface of different patients, so that the angle adjustment component is aligned with the special-shaped part that needs to be clamped, which is easy to operate and widely used.

[0033] The angle adjustment component allows the second clamping component to be adjusted according to application scenarios in which the zygomatic orbital surfaces of different patients have different protrusions and / or depressions, so that the zygomatic adaptation clamping component can be adjusted to fully fit the special-shaped area that needs to be clamped, which is easy to operate and widely used.

[0034] In a specific embodiment, the first control component controls the angle adjustment component to move along the transmission screw so that the angle adjustment component is aligned with the orbital surface of the zygomatic bone, and can be adjusted according to the position of the orbital surface of the zygomatic bone of different patients; the second control component controls the rotation of the zygomatic bone adaptable clamp so that the zygomatic bone adaptable clamp completely fits the orbital surface of the zygomatic bone, and can be adjusted according to the specific morphology of the orbital surface of the zygomatic bone of different patients to achieve stable clamping.

[0035] Further, the first control member and / or the second control member comprises one or more of a knob, a switch, a pull rod, and a gear. Specifically, the first control member and the second control member are knobs.

[0036] Furthermore, the zygomatic bone adaptable clamp includes a swinging body formed with a receiving cavity, and the swinging body is used to be fixedly connected to the rotating output shaft for synchronous rotation; the zygomatic bone adaptable clamp also includes a plurality of abutment pins which can partially expose the receiving cavity and are used to contact the zygomatic bone orbital surface for clamping at the ends, and a plurality of limiting particles arranged in the receiving cavity for limiting the abutment pins, and a plurality of through holes are formed on the cavity body of the receiving cavity for exposing the abutment pins.

[0037] Furthermore, a radially protruding limiting portion is formed on the portion of the abutment needle that is not exposed from the accommodating cavity.

[0038] Furthermore, the head end of the abutment needle is held by the zygomatic orbital surface and moves axially toward the accommodating cavity, until the tail end or tail of the abutment needle abuts against the limiting particles and is limited in the accommodating cavity, so as to terminate the axial movement of the abutment needle and fix the abutment needle, and the end face of the head end of the abutment needle forms a curved surface that matches the special-shaped structure of the zygomatic orbital surface.

[0039] Furthermore, the axial lengths of the abutment needles are consistent.

[0040] In a specific embodiment, the angle adjustment component is adjusted by the first control member to adjust the abutment needle to align with the lower edge of the orbital incision, and the zygomatic bone adaptation clamp is controlled by the second control member to rotate so that the abutment needle contacts the zygomatic bone orbital surface through the lower edge of the orbital incision. When the abutment needle contacts the zygomatic bone orbital surface, it is compressed to expand and contract in the accommodating cavity, and further squeezes the limiting particles in the accommodating cavity until the abutment needle completely fits the zygomatic bone orbital surface and the limiting particles in the accommodating cavity are pressed against each other and cannot produce relative movement. The abutment needle imitates the contour of the zygomatic bone orbital surface to achieve self-adaptation to the zygomatic bone irregularity and provide a stable clamping force. In addition, the materials of the limiting particles, accommodating cavity and abutment needle are selected from materials with higher hardness, so that the limiting particles, accommodating cavity and abutment needle are not easy to produce elastic deformation when subjected to force, and are not easy to slip or loosen when clamping the zygomatic bone during the operation, which can ensure the safety, stability and reliability of the operation.

[0041] The zygomatic bone fracture reduction and clamping device provided by the present invention has the following beneficial effects:

[0042] 1) The curve of the first clamping part in the first clamping assembly of the present invention fits the temporal surface and the orbital surface of the zygomatic bone, so as to achieve the effect of stably clamping the zygomatic bone irregularity.

[0043] 2) The second clamping component of the present invention can adapt to different patients' zygomatic orbital surface positions and / or shapes through the translation adjustment component and the angle adjustment component, which can increase the contact area of ​​clamping. After adjusting the contact surface, the abutment needle and the limiting particles are locked to provide a stable clamping force.

[0044] 3) The connecting rod assembly in the present invention enables the first clamping assembly and the second clamping assembly to be linked, and the overall device can be fixed by fixing the position of one of the two, thereby realizing the clamping function more conveniently.

[0045] 4) In the present invention, the first clamping assembly and the second clamping assembly clamp the zygomatic deformity from the inside and outside respectively to achieve "surface" contact with the zygomatic deformity, achieving a stable and firm clamping effect, facilitating stable and precise pulling of the zygomatic bone in multiple directions such as upward, forward and outward during subsequent surgery, thereby improving the accuracy, safety and efficiency of zygomatic bone reduction.

[0046] 5) The zygomatic bone fracture reduction and clamping device of the present invention fills the gap in the current maxillofacial trauma surgery in surgical instruments for entering the zygomatic bone fracture site through an intraoral incision and an inferior orbital rim incision and clamping the zygomatic bone. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 Shown is a schematic diagram of the zygomatic bone described in this application.

[0048] Figure 2 Shown is a schematic diagram of the position of the zygomatic bone in the skull as described in this application.

[0049] Figure 3 Shown is a schematic diagram of the overall structure of the zygomatic fracture reduction and clamping device described in the present application.

[0050] Figure 4 It shows the overall structure schematic diagram of the zygomatic fracture reduction and clamping device in another state of the present application.

[0051] Figure 5 Shown is a schematic structural diagram of the bracket and the connecting rod assembly described in the present application.

[0052] Figure 6 Shown is a schematic structural diagram of a frame column of the present application.

[0053] Figure 7 Shown is a schematic structural diagram of the first clamping assembly of the present application.

[0054] Figure 8 Shown is a schematic structural diagram of the second clamping assembly of the present application.

[0055] Fig. 9 Shown is a schematic structural diagram of the zygomatic bone adaptable clamp described in the present application.

[0056] Fig.10 Shown is a simulated schematic diagram of the zygomatic bone fracture reduction clamping device described in the present application clamping the zygomatic bone.

[0057] Fig.11 Shown is a simulated schematic diagram of the zygomatic bone fracture reduction clamping device described in the present application clamping the zygomatic bone from another angle.

[0058] Description of Figure Numbers

[0059] 10 bracket, 11 frame column, 111 first through hole, 12 second through hole, 20 first clamping assembly, 21 limiting rod, 22 first extension arm, 221 first limiting hole, 23 connecting portion, 231 third through hole, 24 second extension arm, 241 arc separation section, 242 arc clamping section, 30 second clamping assembly, 31 third extension arm, 311 second limiting hole, 32 fourth extension arm, 321 fourth through hole, 33 translation adjustment assembly, 331 first control member, 332 translation output shaft, 34 angle adjustment assembly, 341 second control member, 342 rotation output shaft, 35 zygomatic adaptation clamping member, 351 swing body, 3511 accommodating cavity, 352 abutting needle, 353 limiting particles, 40 connecting rod assembly, 41 connecting plate, 411 fifth through hole, 42 slider, 50 fixing member, a zygomatic orbital surface, b zygomatic temporal surface. DETAILED DESCRIPTION

[0060] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0061] It should be noted that the process equipment or devices not specifically specified in the following embodiments are all conventional equipment or devices in the art.

[0062] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of this application, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by this application, should still fall within the scope of the technical content disclosed in this application. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of this application. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of this application without substantial change of the technical content.

[0063] In addition, it should be understood that one or more method steps mentioned in the present invention do not exclude the existence of other method steps before or after the combination step or the insertion of other method steps between these explicitly mentioned steps, unless otherwise specified; it should also be understood that the combination connection relationship between one or more components / devices mentioned in the present invention does not exclude the existence of other devices / devices before or after the combination component / device or the insertion of other components / devices between these two explicitly mentioned components / devices, unless otherwise specified. Moreover, unless otherwise specified, the numbering of each method step is only a convenient tool for identifying each method step, and is not intended to limit the order of arrangement of each method step or the scope of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the present invention without substantially changing the technical content.

[0064] In order to solve the problem of difficulty in achieving stable clamping in zygomatic fracture reduction surgery in the prior art. Specifically, it is used to solve the problem that the clamping tools used in zygomatic fracture reduction surgery are difficult to operate, have a single direction of action, cause great harm to patients, and are inaccurate and unstable in reduction. The inventor of the present application provides a zygomatic fracture reduction clamping device, which can match the zygomatic bone's irregular shape to achieve stable clamping; specifically, the zygomatic fracture reduction clamping device described in the present application can fit the morphology of the orbital surface and the temporal surface of the zygomatic bone, provide a stable clamping force, achieve multi-directional traction on the zygomatic bone body, and ensure that the operation is convenient, safe, and stable.

[0065] In a specific embodiment of the zygomatic bone fracture reduction clamping device, Figures 1 to 9 As shown, the zygomatic fracture reduction clamping device includes a bracket 10, a first clamping assembly 20 and a second clamping assembly 30. The bracket 10 is a rectangular frame structure. The first clamping assembly 20 and the second clamping assembly 30 are respectively used to be connected to the rectangular frame, and the first clamping assembly 20 and the second clamping assembly 30 are respectively formed on the same side of the bracket 10 with a first clamping portion and a second clamping portion protruding. The first clamping portion is used to abut the temporal surface b of the zygomatic bone, and the second clamping portion is used to abut the orbital surface a of the zygomatic bone. The first clamping portion and the second clamping portion cooperate to clamp and fix the zygomatic bone from two relative angles inside and outside to achieve clamping of the zygomatic bone and assist in reduction. Further, the abutting surface formed by the first clamping portion matches the temporal surface b of the zygomatic bone to match; the abutting surface formed by the second clamping portion matches the orbital surface a of the zygomatic bone to match. The two specifically matched clamping portions are used to achieve coordinated clamping of the zygomatic bone with a curved surface or irregular concave-convex structure to assist in zygomatic bone reduction.

[0066] In a Figures 3 to 6In the specific embodiment shown, the rectangular frame is composed of four frame columns 11a, 11b, 11c, and 11d connected in sequence and perpendicular to each other. The rectangular frame limits and fixes and supports the movement of the first clamping assembly 20 and the second clamping assembly 30, so that the zygomatic fracture reduction device is stable and controllable during operation.

[0067] In a specific embodiment, Figure 3 , 4 As shown in Figure 7, the first clamping assembly 20 includes a U-shaped clamping member, and the U-shaped clamping member includes a first extension arm 22, a second extension arm 24 and a connecting portion 23 formed therebetween, the first extension arm 22 is formed with a first limiting hole 221 for a frame column 11a of the frame structure to pass through; the end of the first extension arm 22 is protrudingly formed with a limiting rod 21 perpendicular thereto, and the limiting rod 21 is parallel to the frame column 11a for passing through the first limiting hole 221; the limiting rod 21 is used to pass through and be limited on the frame column 11c so that the first clamping assembly 20 can be moved accordingly along the frame column 11a by adjusting the limiting position of the limiting rod 21; the first clamping portion is arranged close to the free end of the second extension arm 24. Specifically, if the direction of movement along the frame column 11a passing through the first limiting hole 221 is set as the up-down movement (or the z-direction movement), the up-down movement position of the first clamping assembly 20 along the frame column 11 is changed by the limiting position of the limiting rod 21, so as to change the degree of the first clamping portion protruding from the bracket 10. Figure 3 , 4 As shown in FIG. 7 , one end of the limit rod 21 is connected to the first extension arm 22, and can be connected to the end or any position close to the end, and can be adjusted according to the actual structure space size of the skull or zygomatic bone. The limit rod 21 can extend toward the direction close to 11c, or toward the direction close to 11d. Figure 3 , 4 In a more preferred embodiment shown in FIG. 7 , the limiting rod 21 extends and protrudes toward a direction close to 11 c .

[0068] In some Figure 3 , 4 In the embodiment shown in FIG. 7 , a first clamping portion is formed on the second extension arm 24 of the U-shaped clamp, and the second extension arm protrudes from the bracket 10. In some further embodiments, the second extension arm 24 is arranged substantially parallel to the frame column 11d, and its free end is arranged close to 11b. That is, the opening direction of the U-shaped clamp faces the frame column 11b.

[0069] In the present application, the U-shape refers to two extension arms bending on the same side to form two opposite opening parts, and the middle part connects the two extension arms to form an arc or curved bottom to form a letter U shape or a shape similar to the letter U; the lengths of the two extension arms can be the same or different.

[0070] In a more specific embodiment, Figure 3 , 4 As shown in FIG. 7 , the first clamping portion is sequentially formed with an arc-shaped separation section 241 and an arc-shaped clamping section 242 located at the end. Further, in a specific embodiment, as Figure 3 , 4 As shown in FIG. 7 , the arc-shaped clamping section 242 is used to match and clamp the temporal surface of the zygomatic bone, and the arc-shaped separation section 241 is used to separate the zygomatic bone from the facial soft tissue. Further, in a specific embodiment, as Figure 3 , 4 As shown in Figures 7 and 8, the clamping surface of the arc-shaped clamping section 242 and the zygomatic bone contact surface of the arc-shaped separation section 241 form the same smooth arc surface. This feature can achieve a smooth transition of the first clamping portion as a whole, thereby facilitating actual operation. Figure 3 , 4 In the specific embodiment shown in Figure 7, in actual use, the first clamping portion extends into the oral cavity, and then enters the human facial tissue through the incision in the oral cavity (the incision that has been made during the operation and is close to the zygomatic bone) until the arc-shaped clamping section 242 fits the temporal surface b of the zygomatic bone, and at this time, the arc-shaped separation section 241 is used to separate the facial soft tissue near the clamping position so that it is separated from the temporal surface of the zygomatic bone. In a specific embodiment, the facial tissue contact surface of the arc-shaped separation section 241 is a smooth arc surface, so that when it contacts the facial soft tissue, it reduces the cutting friction of the tissue during the tissue separation process; the clamping surface of the arc-shaped clamping section 242 matches and fits with the arc surface of the temporal surface b of the zygomatic bone, achieving complete fit with the temporal surface b of the zygomatic bone, achieving the effect of stable clamping of the zygomatic bone deformity, and laying a foundation for the stability of the subsequent multi-directional traction of the zygomatic bone.

[0071] In a more specific embodiment, Figures 3-4 As shown, the zygomatic fracture reduction clamping device further includes a fixing member 50; the fixing member 50 matches the limiting rod 21 to fix the limiting rod 21 to the frame column 11c. In a more specific embodiment, as Figures 3 to 5 As shown, the frame column 11c is formed with a first through hole 111 for the limiting rod 21 to pass through. Further, the fixing member 50 includes one or more of a nut, a screw, a strap, and a lock. Figures 3-4 In the specific embodiment shown, the fixing member 50 is a nut, and a thread matching the nut is formed on the limiting rod 21. Figure 3 , 4 As shown in FIG. 8 , the second clamping assembly 30 includes an L-shaped motion transmission member, a translation adjustment assembly 33, an angle adjustment assembly 34 and a zygomatic adaptation clamping member 35; the L-shaped motion transmission member includes a third extension arm 31 and a fourth extension arm 32 connected in sequence, the third extension arm 31 is formed with a second limiting hole 311 for a frame column 11b to pass through; the translation adjustment assembly 33 is fixedly connected to the end of the fourth extension arm 32; the translation adjustment assembly 33 is used to adjust the translation of the zygomatic adaptation clamping member 35; the angle adjustment assembly 34 is used to adjust the angle of the zygomatic adaptation clamping member 35; the angle adjustment assembly 34 is connected to the translation output shaft 332 of the translation adjustment assembly 33, and the zygomatic adaptation clamping member 35 is arranged on the rotation output shaft 342 of the angle adjustment assembly 34. In some more specific embodiments, if it is assumed that the frame column 11d is in the y direction, the translation is a linear motion in a direction parallel to the y direction. In some more specific embodiments, the translation output axis 332 is arranged parallel to the x direction (the x direction and the y direction are in the same plane and perpendicular to each other); thus, the angle adjustment component 34 controls the zygomatic bone adapting clamp 35 to swing slightly with the translation output axis 332 as the rotation axis.

[0072] In the present application, the L-shape refers to two extension arms that are connected and perpendicular or nearly perpendicular to each other, and the overall outline is in the shape of the letter L or close to the shape of L; the connection can also form a smooth transition or rounded transition to avoid the generation of sharp edges.

[0073] The translation adjustment component 33 in the present application can achieve the above functions and effects, and can be implemented by using a common mechanical transmission structure in the prior art that converts rotation into linear motion. More specifically, the rotation of an axis parallel to the y direction is converted into linear motion along a direction parallel to the y direction. In order to further achieve this effect, in a more specific embodiment, as Figure 3 , 4 As shown in Figure 8, the translation adjustment component 33 is a screw transmission structure, and the translation adjustment component 33 includes a first control member 331, a transmission screw parallel to the y direction, and a transmission nut. The first control member 331 is fixedly connected to the transmission screw, and a transmission nut is matched on the transmission screw. The transmission nut is fixedly connected to the translation output shaft 332. When the first control member 331 drives the transmission screw to rotate, the transmission screw drives the transmission nut to move in a straight line parallel to the y direction, thereby driving the angle adjustment component 34 to move in a straight line parallel to the y direction. In a further embodiment, as Figure 3 , 4 As shown in Figure 8, the translation adjustment component 33 is an X-axis displacement platform LX25-L.

[0074] The angle adjustment assembly 34 in the present application can achieve the above functions and effects, and can be implemented by using a common mechanical transmission structure in the prior art that converts a first direction rotation into a second direction rotation, such as a worm gear transmission, a gear transmission, or a flexible hinge transmission. More specifically, the first direction rotation is rotation about an axis parallel to the y direction, and the second direction rotation is rotation about an axis parallel to the x direction. In a more specific embodiment, Figure 3 , 4 As shown in Figure 8, the angle adjustment assembly 34 includes a second control member 341, a transmission assembly, and a rotation output shaft 342. The transmission assembly includes a worm wheel and a worm that mesh with each other. The second control member 341 is fixedly connected to the worm, and the worm is parallel to the y direction. The rotation output shaft 342 is fixedly connected to the worm wheel and the zygomatic bone adapting clamp 35. When the second control member 341 drives the worm to rotate with an axis parallel to the x direction, the worm wheel drives the rotation output shaft 342 to realize the zygomatic bone adapting clamp 35 to rotate with an axis parallel to the x direction. In a further embodiment, as Figure 3 , 4 As shown in Figure 8, the angle adjustment component 34 is an XY axis manual angle measuring slide GFG25-20.

[0075] In a more specific embodiment, Figures 3 to 6 As shown, the zygomatic fracture reduction clamping device further includes a connecting rod assembly 40, the connecting rod assembly 40 forms a lever structure, one end of the lever structure is gap-connected with the connecting portion 23 of the U-shaped clamping member, and the other end of the lever structure is gap-connected with the fourth extension arm 32 of the L-shaped motion transmission member; the fulcrum of the lever structure is set on the frame column 11d of the frame structure; the rotation diameter of the lever structure is greater than the length of the frame column 11d of the frame structure; the first clamping assembly 20 and the second clamping assembly 30 are connected by the connecting rod assembly 40 for reverse linkage. The gap connection in the present application is specifically a hole-shaft gap connection.

[0076] In a Figures 3 to 6 In the specific embodiment shown, the reverse linkage mentioned above in the present application means that: the first clamping assembly 20 moves upward (i.e., moves in the z direction, so that the first clamping part approaches the bracket 10), and the second clamping assembly 30 moves downward synchronously (i.e., the second clamping part moves away from the bracket 10), and as long as the first clamping assembly 20 is fixed, the first clamping assembly 20 and the second clamping assembly 30 are both fixed. After the first clamping assembly 20 and the second clamping assembly 30 are adjusted to fit and clamp the zygomatic bone, they can be conveniently and synchronously fixed in position, thereby improving the efficiency of the operation.

[0077] In another specific embodiment, the end of the third extension arm 31 of the L-shaped motion conductor is protruded to form a second limiting rod perpendicular to the L-shaped motion conductor, and the second limiting rod is parallel to the frame column 11d for passing through the second limiting hole 311; the second limiting rod is used to pass through and be limited on the frame column 11a so that the second clamping assembly 30 can be moved along the frame column 11d by adjusting the position of the second limiting rod to adjust the position of the second clamping assembly individually.

[0078] Further, in a specific embodiment, Figures 3 to 8 As shown, the connecting rod assembly 40 includes two connecting plates 41 serving as levers, two sliders 42 and a rotating shaft serving as a rotating support shaft, the rotating shaft is arranged to pass through the frame column 11d of the frame structure, the two connecting plates 41 are respectively arranged at both ends of the rotating shaft and are respectively located on both sides of the frame column 11d; the two sliders 42 are respectively slidably connected between the two connecting plates 41; the connecting portion 23 of the U-shaped clamping member and the fourth extension arm 32 of the L-shaped motion transmission member respectively pass through and are limited on a slider 42, and are respectively connected with the slider 42 hole shaft gap.

[0079] Furthermore, in a specific embodiment, Figures 3 to 8 As shown, sliding connection parts are formed at both ends of any slider and a connecting shaft is formed in the middle. The connecting shaft passes through the connecting part 23 of the U-shaped clamping member or the fourth extension arm 32 of the L-shaped motion transmission member and is connected with a hole-axis gap. The sliding connection part is correspondingly slidably connected with the connecting plate 41.

[0080] In a Figures 3 to 8 In the specific embodiment shown, a second through hole 12 is formed on the frame column 11d for the rotating shaft to pass through; a third through hole 231 is formed on the connecting portion 23 for the connecting shaft to pass through; a fourth through hole 321 is formed on the fourth extension arm 32 for the connecting shaft to pass through; a fifth through hole 411 is formed on the connecting plate 41 for the rotating shaft to pass through, and the gap connection is a hole-shaft gap connection; a sliding groove is formed on the sliding connecting portion for matching the connecting plate 41 to achieve a sliding connection.

[0081] In a Figures 3 to 5 In the specific embodiment shown, two sliding blocks 42 are respectively disposed close to the ends of the connecting plate 41 .

[0082] The translation adjustment component 33 allows the second clamping component 30 to be adjusted according to application scenarios with different positions of the zygomatic orbital surface a of different patients, so that the angle adjustment component 34 is aligned with the special-shaped part that needs to be clamped, which is easy to operate and widely used.

[0083] The angle adjustment component 34 allows the second clamping component 30 to be adjusted according to different patient zygomatic orbital surface a shapes, that is, different convex and / or concave depths, so that the zygomatic adaptation clamp 35 can be adjusted to fully fit the special-shaped part that needs to be clamped, which is easy to operate and widely used.

[0084] In a Figure 3 and 8 In the specific embodiment shown in the figure, the first control member controls 331 the angle adjustment component 34 to make a linear motion along the direction parallel to the y direction, so that the angle adjustment component 34 is aligned with the zygomatic orbital surface a, and can be adjusted according to the position of the zygomatic orbital surface a of different patients; the second control member controls the zygomatic adaptation clamp 35 to swing (the specific motion direction is shown in FIG. Figure 4 The zygomatic bone adaptable clamp 35 is completely fitted to the zygomatic bone orbital surface a, and can be adjusted according to the specific morphology of the zygomatic bone orbital surface of different patients to achieve stable clamping.

[0085] Further, in a specific embodiment, Figure 3 , 4 As shown in Figures 8 and 8, the first control member 331 and / or the second control member 341 includes one or more of a knob, a switch, a pull rod, and a gear.

[0086] In a Figure 3 and 7 In the specific embodiments shown in 8, the first control member and the second control member are knobs.

[0087] Further, in a specific embodiment, Figures 3-4 As shown in FIGS. 8 and 9, the zygomatic bone adapting clamp 35 includes a swinging body 351 formed with a receiving cavity 3511, and the swinging body 351 is used to be fixedly connected to the rotating output shaft 342 for synchronous rotation; the zygomatic bone adapting clamp 35 also includes a plurality of abutting pins 352 that can partially expose the receiving cavity 3511 and are used to contact the zygomatic bone orbital surface for clamping, and a plurality of limiting particles 353 arranged in the receiving cavity 3511 for limiting the abutting pins 352, and the cavity of the receiving cavity 3511 is formed with a plurality of through holes for the abutting pins 352 to be exposed. Preferably, the diameter of the through hole is greater than but close to the diameter of the abutting pin 352, so that the abutting pin 352 can move axially in the through hole, but is not easy to shake circumferentially, so as to ensure the stability of the operation, and at the same time, human tissue will not enter the zygomatic bone adapting clamp 35 through the through hole, causing the device to get stuck or difficult to clean.

[0088] Furthermore, in a specific embodiment, Figures 3-4As shown in Figures 8 and 9, the head end of the abutment needle 352 is held by the zygomatic orbital surface a and moves axially toward the accommodating cavity 3511, until the tail end or tail of the abutment needle 352 abuts against the limiting particle 353 and is limited in the accommodating cavity 3511, so as to terminate the axial movement of the abutment needle 352 and fix the abutment needle 352, and the end face of the head end of the abutment needle 352 forms a curved surface that matches the special-shaped structure of the zygomatic orbital surface a.

[0089] Furthermore, in a specific embodiment, Figures 3-4 As shown in FIGS. 8 to 9 , the axial length of the abutment needle 352 is consistent.

[0090] The accommodating cavity 3511 is used to provide an accommodating space. In some specific embodiments, the accommodating cavity 5311 may be a hollow cylinder, a hollow cuboid, or a hollow cube. Figures 8-9 In the embodiment shown, the accommodating cavity 5311 is a cylinder, and the diameter of the accommodating cavity is 0.6 to 1.5 cm, and the height is 0.6 to 1.5 cm. In a specific accommodating cavity, the diameter is 1 cm, and the height is 1.2 cm. The swing body 351 is used as a motion transmission part to fix the connection with the rotating output shaft. The abutment needle 352 is used to form the abutment surface of the zygomatic orbital surface a, and its shape, number and size can be adjusted arbitrarily according to the needs of the operation. In a specific example, Figures 8-9 In the embodiment shown, the abutment needles 352 have a diameter of 0.6 to 1.5 mm, a length of 0.6 to 1.5 cm, and a number of 18 to 30. Figures 8-9 In the embodiment shown, the abutment needle 352 is made of stainless steel, has a diameter of 1 mm, a length of 1 cm, and a number of 23. The limiting particles 353 are used to limit the abutment needle 352 so that it can be limited in a fixed position after abutting the zygomatic orbital surface a to form an abutment surface. The material, quantity, and size of the limiting particles 353 can be adjusted arbitrarily according to the needs of surgery and production. The diameter of the limiting particles 353 is 0.6 to 1.5 mm, and the number is 200 to 300. In a Fig. 9 In the specific embodiment shown, the limiting particles 353 are stainless steel balls with a diameter of 1 mm and a number of 250. The stainless steel abutment needles 352 and limiting particles 353 meet the surgical safety standards and are not easily elastically deformed. When the zygomatic bone is clamped during surgery, the abutment needles 352 and limiting particles 353 are not easily elastically deformed, so that the zygomatic bone adaptation clamp 35 is not easy to slip or loosen, which can ensure the safety, stability and reliability of the surgery.

[0091] Furthermore, in a specific embodiment, Figures 3-4As shown in FIGS. 8 and 9, the portion of the abutment needle 352 not exposed in the accommodating cavity 3511 is formed with a radially protruding stopper. The stopper can be formed at any portion of the abutment needle 352 not exposed in the accommodating cavity 3511, as long as the abutment needle 352 does not completely leak out of the accommodating cavity 3511. Figure 7 In the specific embodiment shown, the stop portion is formed at the end of the abutment needle 352 .

[0092] In a specific embodiment, the angle adjustment component 34 is adjusted by the first control member 331 to align the abutment pin 352 with the lower edge of the orbital cutout, and the zygomatic bone adaptation clamp 35 is controlled to rotate by the second control member so that the abutment pin 352 contacts the zygomatic bone orbital surface b through the lower edge of the orbital cutout. When the abutment pin 352 contacts the zygomatic bone orbital surface a, it is compressed to expand and contract in the accommodating cavity 3511, and further squeezes the limiting particles 353 in the accommodating cavity 3511, until the abutment pin 352 completely fits the zygomatic bone orbital surface a, and the limiting particles 353 in the accommodating cavity 3511 are fixed by the accommodating cavity 3511 and are pressed against each other so that relative movement cannot occur. Finally, the abutment pin 352 imitates the contour of the zygomatic bone orbital surface a, realizes self-adaptation at the zygomatic bone orbital surface, and provides a stable clamping force.

[0093] In a Figures 1 to 11 In the specific embodiment shown, the method for using the zygomatic bone fracture reduction device in zygomatic bone fracture reduction surgery comprises the following steps:

[0094] 1) Before using the zygomatic bone fracture reduction device, an intraoral incision and a lower orbital rim incision are respectively made on the inner side of the patient's oral cavity near the posterior medial side of the zygomatic bone and on the lower orbital rim near the orbital surface of the zygomatic bone;

[0095] 2) The connecting portion 21 is inserted into the first through hole 111, and the first clamping portion is cut into the oral cavity through an incision to separate the facial soft tissue and the zygomatic bone;

[0096] 4) adjusting the position of the first clamping portion so that the arc-shaped clamping section 242 fits the temporal surface b of the zygomatic bone, and one side of the arc-shaped separation section 241 fits the posterior medial surface of the zygomatic bone;

[0097] 4) operating the first control member 331 to control the angle adjustment assembly 34 to translate until the abutment needle 352 is aligned with the lower edge of the orbital incision;

[0098] 5) Operate the second control member 341 to control the rotation of the zygomatic bone adapting clamp 35, so that the abutment needle 352 abuts against the zygomatic bone orbital surface a through the lower edge of the orbital incision, and further adjust until the abutment needle 352 completely fits the contour of the zygomatic bone orbital surface and the limiting particles 353 are pressed against each other and cannot produce relative movement;

[0099] 6) Maintaining the positions of the first clamping assembly 20 and the second clamping assembly 30, fixing the connecting portion 21 to the frame column 11 through the fixing member 50, so that the first clamping assembly 20 and the second clamping assembly 30 clamp the zygomatic bone and there is no relative movement between them and the bracket 10;

[0100] 7) pulling the support 10 so that the zygomatic bone clamped by the zygomatic bone fracture reduction device moves upward and / or forward and / or outward (with the human body structure as the coordinate system) until the fracture is reduced;

[0101] 8) After the fracture is reduced, titanium nails and plates are implanted to fix the zygomatic bone and complete the reduction;

[0102] 9) Remove the fixing member 50, release the fixing state between the first clamping assembly 20 and the second clamping assembly 30 and the bracket 10, slowly remove the first clamping part from the intraoral incision, move the abutment needle 352 away from the lower edge of the orbital incision, and loosen the clamping of the zygomatic bone fracture reduction device on the zygomatic bone.

[0103] The first clamping assembly and the second clamping assembly in the zygomatic fracture reduction and clamping device of the present invention clamp the zygomatic bone deformity from the inside and outside respectively, so as to achieve "surface" contact with the zygomatic bone deformity, and achieve a stable and firm clamping effect, which is convenient for the subsequent operation to stably and accurately pull the zygomatic bone in multiple directions such as upward, forward and outward, thereby improving the accuracy, safety and efficiency of zygomatic bone reduction.

[0104] In summary, the present invention effectively overcomes various shortcomings of the prior art and has high industrial utilization value.

[0105] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A zygomatic fracture reduction clamping device, characterized in that: The invention comprises a support (10), a first clamping assembly (20) and a second clamping assembly (30), wherein the support (10) is in a rectangular frame structure, the first clamping assembly (20) and the second clamping assembly (30) are respectively used to be connected to the rectangular frame, and the first clamping assembly (20) and the second clamping assembly (30) are respectively protruded on the same side of the support (10) to form a first clamping portion and a second clamping portion, the first clamping portion is used to abut against the temporal surface of the zygomatic bone, and the second clamping portion is used to abut against the orbital surface of the zygomatic bone, and the first clamping portion and the second clamping portion cooperate to clamp the zygomatic bone and thus assist in reduction.

2. The zygomatic fracture reduction and clamping device according to claim 1, characterized in that: The first clamping assembly (20) comprises a U-shaped clamping member, the U-shaped clamping member comprises a first extension arm (22), a second extension arm (24) and a connecting portion (23) formed therebetween, the first extension arm (22) being formed with a first limiting hole (221) for a frame column of the frame structure to pass through; a limiting rod (21) is protruding from the end of the first extension arm (22) and is perpendicular thereto, and the limiting rod (21) is parallel to the frame column for passing through the first limiting hole (221); the limiting rod (21) is used to pass through and be limited on the frame column so that the first clamping assembly (20) can be moved along the frame column by adjusting the position of the limiting rod (21); the first clamping portion is arranged close to the free end of the second extension arm (24); And / or, the second clamping component (30) comprises an L-shaped motion transmission component, a translation adjustment component (33), an angle adjustment component (34) and a zygomatic bone adapting clamping component (35); the L-shaped motion transmission component comprises a third extension arm (31) and a fourth extension arm (32) connected in sequence, the third extension arm (31) is formed with a second limiting hole (311) for a frame column to pass through; the translation adjustment component (33) is fixedly connected to the end of the fourth extension arm (32); the translation adjustment component (33) is used to adjust the translation of the zygomatic bone adapting clamping component (35); the angle adjustment component (34) is used to adjust the angle of the zygomatic bone adapting clamping component (35); the angle adjustment component (34) is connected to the translation output shaft (332) of the translation adjustment component (33), and the zygomatic bone adapting clamping component (35) is connected to the rotation output shaft (342) of the angle adjustment component (34).

3. The zygomatic fracture reduction and clamping device according to claim 2, characterized in that: The translation adjustment component (33) is a mechanical transmission structure that converts rotation into linear motion; And / or, the angle adjustment assembly (34) is a mechanical transmission structure that converts rotation in a first direction into rotation in a second direction; and / or, the zygomatic fracture reduction and clamping device further comprises a fixing member (50), wherein the fixing member (50) matches the limiting rod (21) to fix the limiting rod (21) to the frame column.

4. The zygomatic fracture reduction and clamping device according to claim 2, characterized in that: The zygomatic bone fracture reduction and clamping device also includes a connecting rod assembly (40), wherein the connecting rod assembly (40) forms a lever structure, one end of the lever structure is gap-connected with one end of the connecting portion (23) of the U-shaped clamping member, and the other end of the lever structure is gap-connected with the fourth extension arm (32) of the L-shaped motion transmission member; the fulcrum of the lever structure is arranged on the frame column of the frame structure; the rotation diameter of the lever structure is larger than the frame column of the frame structure; the first clamping assembly (20) and the second clamping assembly (30) are connected via the connecting rod assembly (40) to be reversely linked; And / or, a second limiting rod is protruded from the end of the third extension arm (31) of the L-shaped motion conductor and is perpendicular thereto, and the second limiting rod is parallel to the frame column for passing through the second limiting hole (311); the second limiting rod is used to pass through and be limited on the frame column so that the second clamping assembly (30) can be moved along the frame column by adjusting the position of the second limiting rod.

5. The zygomatic fracture reduction and clamping device according to claim 4, characterized in that: The connecting rod assembly (40) includes two connecting plates (41) serving as levers, two sliding blocks (42) and a rotating shaft serving as a rotating support shaft, wherein the rotating shaft is arranged through a frame column of the frame structure, and the two connecting plates (41) are respectively arranged at both ends of the rotating shaft and are respectively located on both sides of the frame column; the two sliding blocks (42) are respectively slidably connected between the two connecting plates (41); the connecting portion (23) of the U-shaped clamping member and the fourth extension arm (32) of the L-shaped motion transmission member respectively pass through and are limited on a sliding block (42), and are respectively connected with the sliding block (42) with a gap.

6. The zygomatic fracture reduction and clamping device according to claim 5, characterized in that: Sliding connection parts (4211) are formed at both ends of any slider (42) and a connecting shaft is formed in the middle, the connecting shaft passes through the connecting part (23) of the U-shaped clamping member or the fourth extension arm (32) of the L-shaped motion transmission member and is gap-connected, and the sliding connection part is correspondingly slidably connected to the connecting plate (41).

7. The zygomatic fracture reduction and clamping device according to claim 2, characterized in that: The first clamping portion is sequentially formed with an arc-shaped separation section (241) and an arc-shaped clamping section (242) located at the end.

8. The zygomatic fracture reduction and clamping device according to claim 7, characterized in that: The arc-shaped clamping section (242) is used to match and clamp the temporal surface of the zygomatic bone, and the arc-shaped separation section (241) is used to separate the zygomatic bone from the facial soft tissue; And / or, the clamping surface of the arc-shaped clamping section (242) and the zygomatic bone contact surface of the arc-shaped separation section (241) form a same smooth arc surface.

9. The zygomatic fracture reduction and clamping device according to claim 2, characterized in that: The zygomatic bone adaptable clamp (35) comprises a swinging body (351) formed with a receiving cavity (3511), and the swinging body (351) is used to be fixedly connected to the rotating output shaft (342) to rotate synchronously; The zygomatic bone adaptable clamp (35) further comprises a plurality of abutment pins (352) which can partially expose the accommodating cavity (3511) and are used to contact the zygomatic bone orbital surface with their head ends for clamping, and a plurality of limiting particles (353) arranged in the accommodating cavity (3511) for limiting the abutment pins (352). The cavity body of the accommodating cavity (3511) is formed with a plurality of through holes for exposing the abutment pins.

10. The zygomatic fracture reduction and clamping device according to claim 9, characterized in that: The portion of the abutment needle (352) not exposed from the accommodating cavity (3511) is formed with a radially protruding limiting portion; And / or, the head end of the abutment needle (352) is abutted by the zygomatic orbital surface so as to move axially toward the accommodating cavity (3511), until the tail end or tail of the abutment needle (352) abuts against the limiting particle (353) and is limited in the accommodating cavity (3511), so as to stop the axial movement of the abutment needle (352) and fix the abutment needle (352), and the end surface of the head end of the abutment needle (352) forms a curved surface matching the special-shaped structure of the zygomatic orbital surface; And / or, the axial lengths of the abutment needles (352) are consistent.

Images