Fixed clamping device and its manufacturing method

Abstract

The present application relates to a fixed clamping device and a manufacturing method thereof. The fixed clamping device fixes the proximal nail by opening a first through hole in the support plate. The distal nail passes through the second through hole. The first fixing member is used to sleeved on the distal nail through the third through hole. The first fixing member is used to slide along the distal nail and approach the second through hole until it is fixed to the second through hole. The fixed clamping device is used to fix the proximal nail through the first through hole, and then complete the rough positioning of the distal nail through the second through hole. Finally, the fixed clamping device is fixed to the second through hole through the first fixing member to realize the fine positioning and fixing of the distal nail, so as to correct the position of the distal nail. The fixed clamping device has a simple structure and is easy to operate. Even if the operator is not an orthopedic professional, the operator can fix the proximal nail and the distal nail through the fixed clamping device to reduce and fix the fracture site.

Description

Technical Field

[0001] This application relates to the technical field of medical devices, and particularly to a fixing and clamping device and a manufacturing method thereof. Background Art

[0002] The basic fracture treatment is reduction treatment. At the same time, reduction treatment is also a very important operation. The reduction result directly affects the postoperative recovery. In the prior art, for the orthopedic treatment after fracture, the doctor's clinical experience is usually followed for orthopedic treatment, and then X-ray is used to detect whether the fractured part is completely docked, and finally fixation is carried out.

[0003] This method of orthopedic fixation relying on the doctor's clinical experience completely depends on the experience and responsibility of the attending doctor during the operation. Due to the uneven experience of doctors, there will inevitably be judgment deviations or other uncertain factors, resulting in poor bone connection effects, and problems such as postoperative fracture misalignment and nonunion are likely to occur. How to simply perform bone connection and fixation on the fracture site is an urgent problem to be solved. Summary of the Invention

[0004] Based on this, in view of the problem of how to simply perform bone connection and fixation on the fracture site, it is necessary to provide a fixing and clamping device and a manufacturing method thereof.

[0005] A fixing and clamping device includes a support plate and a first fixing member. The support plate includes a first surface disposed opposite to each other. The first surface is used to fit against the fracture site. The support plate is provided with a first through hole and a second through hole. The first through hole and the second through hole are spaced apart. The first through hole is used to fix the proximal steel nail. The first fixing member is used to be fixed in the second through hole. The first fixing member is provided with a third through hole. The third through hole is used to fix the distal steel nail passing through the second through hole to correct the position of the distal steel nail.

[0006] In one embodiment, the support plate further includes a second surface opposite to the first surface, and the fixing and clamping device further includes a first mounting platform. The first mounting platform is disposed on the second surface. The first mounting platform is provided with a fourth through hole. The fourth through hole communicates with the second through hole. The first fixing member is used to be fixed in the fourth through hole.

[0007] In one embodiment, the fourth through hole includes a first tapered surface. The smallest opening of the fourth through hole is close to the second surface. The first fixing member includes a first cone. The first cone is used to be adapted to the fourth through hole. Along the central axis of the first cone, the third through hole is provided in the first cone.

[0008] In one embodiment, a first threaded hole is formed in the surface of the first mounting table away from the second surface. The first threaded hole and the third through hole are spaced apart. The first fixing member further includes a mounting plate. The mounting plate is disposed on the end surface with the largest diameter of the first cone. A third through hole is formed in the surface of the mounting plate away from the first cone. A first mounting hole is formed in the surface of the mounting plate away from the first cone corresponding to the first threaded hole.

[0009] In one embodiment, the first mounting hole is an arc-shaped hole.

[0010] In one embodiment, the first fixing member further includes a mounting block. The mounting block is disposed on the surface of the mounting plate away from the first cone. A third through hole is formed in the surface of the first mounting table away from the mounting plate.

[0011] In one embodiment, the mounting block includes a fixing portion and two clamping portions. A third through hole is formed in the surface of the fixing portion away from the mounting plate. A first notch is formed in the fixing portion. The first notch communicates with the third through hole.

[0012] The two clamping portions are respectively disposed at both ends of the first notch. Clamping holes are respectively formed in the two clamping portions. A second notch is formed in the mounting plate corresponding to the first notch.

[0013] In one embodiment, the fixed clamping device further includes a second mounting table. The second mounting table is disposed on the second surface. A fifth through hole is formed in the surface of the second mounting table away from the second surface. The central axis of the fifth through hole is perpendicular to the second surface. The fifth through hole is used for fixedly passing a proximal nail through the first through hole.

[0014] In one embodiment, the second mounting table includes a first mounting member and a second mounting member. The first mounting member is disposed on the second surface. A first semi-circular through groove is formed in the surface of the first mounting member. The central axis of the first semi-circular through groove is perpendicular to the second surface. And the first semi-circular through groove communicates with the first through hole.

[0015] A second semi-circular through groove is formed in the surface of the second mounting member. The second mounting member is used for being fixed to the first mounting member. And the second semi-circular through groove is used for being aligned with the first semi-circular through groove to form the fifth through hole.

[0016] In one embodiment, the fixed clamping device further includes a rib plate. The rib plate is disposed on the second surface. The first mounting member and the second mounting table are disposed on the rib plate.

[0017] In one embodiment, the support plate includes a first support member and a second support member. The first support member includes a first support surface, and a third surface and a fourth surface that are oppositely arranged. The first support surface is connected between the third surface and the fourth surface. The first support surface is provided with a first through groove and a second through groove at intervals.

[0018] The second support member includes a second support surface, and a fifth surface and a sixth surface that are oppositely arranged. The second support surface is connected between the fifth surface and the sixth surface. The first support surface is provided with a third through groove and a fourth through groove.

[0019] When the first support member and the second support member are aligned, the first support surface fits against the second support surface. The third surface and the fifth surface are aligned to form the first surface. The fourth surface and the sixth surface are aligned to form the second surface. The first through groove and the third through groove are aligned to form the first through hole. The second through groove and the fourth through groove are aligned to form the second through hole.

[0020] In one embodiment, the first mounting table includes a third mounting member and a fourth mounting member. The third mounting member is disposed on the fourth surface. A fifth through groove is provided on the surface of the third mounting member close to the first support surface. The central axis of the fifth through groove is perpendicular to the fourth surface. And the fifth through groove communicates with the second through groove. The fourth mounting member is disposed on the sixth surface. A sixth through groove is provided on the surface of the fourth mounting member close to the second support surface. The central axis of the sixth through groove is perpendicular to the sixth surface. And the sixth through groove communicates with the fourth through groove.

[0021] When the first support member and the second support member are aligned, the fifth through groove and the sixth through groove are aligned to form the fourth through hole.

[0022] In one embodiment, a first boss is provided at the edge of the first through groove on the fourth surface. A first semi-circular through groove is provided on the surface of the first boss close to the first through groove. The central axis of the first semi-circular through groove is perpendicular to the fourth surface. And the first semi-circular through groove communicates with the first through groove.

[0023] A second boss is provided at the edge of the third through groove on the sixth surface. A second semi-circular through groove is provided on the surface of the second boss close to the third through groove. The central axis of the second semi-circular through groove is perpendicular to the sixth surface. And the second semi-circular through groove communicates with the third through groove.

[0024] When the first support member and the second support member are aligned, the first semi-circular through groove and the second semi-circular through groove are aligned to form the fifth through hole.

[0025] In one embodiment, both the first support surface and the second support surface are stepped structures, and the first support surface matches the second support surface. A method for manufacturing the fixed clamping device according to any one of the above embodiments includes:

[0026] S100, obtaining a three-dimensional image of a fracture site with a proximal nail and a distal nail, and determining the positions where the proximal nail and the distal nail are fixed to the bone.

[0027] S200, generating a three-dimensional image of the fixed clamping device according to the three-dimensional image of the fracture site, the position of the proximal nail, and the position of the distal nail.

[0028] S300, manufacturing the fixed clamping device according to the three-dimensional image of the fixed clamping device.

[0029] The fixed clamping device provided by the embodiment of the present application fixes the proximal nail by opening the first through hole in the support plate. The distal nail passes through the second through hole. The first fixing member is used to sleeved on the distal nail through the third through hole. The first fixing member is used to slide along the distal nail close to the second through hole until it is fixed to the second through hole. The fixed clamping device is used to fix the proximal nail through the first through hole, and then complete the rough positioning of the distal nail through the second through hole. Finally, the fixed clamping device is fixed to the second through hole through the first fixing member to realize the fine positioning and fixing of the distal nail, so as to correct the position of the distal nail. The fixed clamping device has a simple structure and is easy to operate. Even if the operator is not an orthopedic professional, the proximal nail and the distal nail can be fixed through the fixed clamping device to reset and fix the fracture site. Description of the Drawings

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0031] Figure 1 It is a schematic structural diagram when the fixed clamping device provided in an embodiment of the present application is in use;

[0032] Figure 2 It is an exploded view of the fixed clamping device provided in an embodiment of the present application;

[0033] Figure 3Cross-sectional view of the fixed clamping device provided in an embodiment of the present application;

[0034] Figure 4 Side view schematic diagram of the second fixing member provided in an embodiment of the present application;

[0035] Figure 5 Top view schematic diagram of the second fixing member provided in an embodiment of the present application;

[0036] Figure 6 Structural schematic diagram of the fixed clamping device provided in another embodiment of the present application;

[0037] Figure 7 Structural schematic diagram of the first support member provided in another embodiment of the present application;

[0038] Figure 8 Structural schematic diagram of the second support member provided in another embodiment of the present application.

[0039] Reference numerals in the drawings:

[0040] Fixed clamping device 10

[0041] Proximal steel nail 110

[0042] Distal steel nail 120

[0043] Support plate 20

[0044] First surface 201

[0045] Second surface 202

[0046] First through hole 203

[0047] Second through hole 204

[0048] First support member 210

[0049] First support surface 211

[0050] Third surface 212

[0051] Fourth surface 213

[0052] First through groove 214

[0053] Second through groove 215

[0054] Second support member 220

[0055] Second support surface 221

[0056] Fifth surface 222

[0057] Sixth surface 223

[0058] The third through groove 224

[0059] The fourth through groove 225

[0060] The first boss 230

[0061] The second boss 240

[0062] The first fixing part 40

[0063] The first through hole 401

[0064] The first cone 410

[0065] The first threaded hole 411

[0066] The mounting plate 420

[0067] The first mounting hole 421

[0068] The second notch 422

[0069] The mounting block 430

[0070] The fixing part 431

[0071] The first notch 432

[0072] The clamping part 433

[0073] The clamping hole 434

[0074] The first mounting platform 50

[0075] The fourth through hole 501

[0076] The third mounting part 510

[0077] The fifth through groove 511

[0078] The fourth mounting part 520

[0079] The sixth through groove 521

[0080] The second mounting platform 60

[0081] The fifth through hole 601

[0082] The first mounting part 610

[0083] The first semi-circular through groove 611

[0084] The second mounting part 620

[0085] The second semi-circular through groove 621

[0086] The rib plate 70

[0087] The first boss 30

[0088] Second boss 300 Detailed implementation manners

[0089] To make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific implementations disclosed below.

[0090] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meanings. The "connection" and "coupling" mentioned in the present application, unless otherwise specified, both include direct and indirect connections (couplings). In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present application.

[0091] In the present application, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature has a lower horizontal height than the second feature.

[0092] The proximal nail 110 is fixed to the proximal bone of the fracture part close to the trunk. The distal nail 120 is fixed to the distal bone of the fracture part away from the trunk. The distal bone is disconnected from the proximal bone. During the fixation process, the distal bone is prone to displacement. The distal bone drives the distal nail 120 to displace.

[0093] Please refer to Figure 1 and Figure 2, an embodiment of the present application provides a fixed clamping device 10 including a support plate 20 and a first fixing member 40. The support plate 20 includes a first surface 201 disposed opposite to each other. The first surface 201 is used to fit against the fracture site. The support plate 20 is provided with a first through hole 203 and a second through hole 204. The first through hole 203 and the second through hole 204 are spaced apart. The first through hole 203 is used to fix the proximal nail 110. The first fixing member 40 is used to be fixed in the second through hole 204. The first fixing member 40 is provided with a third through hole 401. The third through hole 401 is used to fix and pass through the distal nail 120 passing through the second through hole 204 to correct the position of the distal nail 120.

[0094] The fixed clamping device 10 provided by the embodiment of the present application first fixes the proximal nail 110 through the first through hole 203. The distal nail 120 passes through the second through hole 204. The first fixing member 40 is sleeved on the distal nail 120 through the third through hole 401. The first fixing member 40 is used to slide along the distal nail 120 close to the second through hole 204 until it is fixed in the second through hole 204. The fixed clamping device 10 fixes the proximal nail 110 through the first through hole 203, and then completes the rough positioning of the distal nail 120 through the second through hole 204. Finally, the fixed clamping device 10 is fixed in the second through hole 204 through the first fixing member 40 to realize the fine positioning and fixing of the distal nail 120 to correct the position of the distal nail 120. The fixed clamping device 10 has a simple structure and is easy to operate. Even if the operator is not an orthopedic professional, the proximal nail 110 and the distal nail 120 can be fixed through the fixed clamping device 10 to reset and fix the fracture site.

[0095] The installation method of the fixed clamping device 10 is as follows: first, pass the proximal nail 110 through the first through hole 203 and the distal nail 120 through the second through hole 204. The first surface 201 fits against the fracture site. Then, sleeve the first fixing member 40 on the distal nail 120 and slide it along the distal nail 120 until the first fixing member 40 is fixed in the second through hole 204.

[0096] The fixed clamping device 10 can semi-surround the fracture site or fully surround the fracture site.

[0097] The number of the first through holes 203 is greater than or equal to the number of the proximal nails 110. The number of the second through holes 204 is greater than or equal to the number of the distal nails 120.

[0098] In one embodiment, the shape of the support plate 20 can be designed according to the fracture site. The shape of the support plate 20 can be a regular shape such as a rectangle, a square or an ellipse, or an irregular shape.

[0099] The thickness of the support plate 20 is not limited. The thickness of the support plate 20 is from mm to mm, which can not only ensure that the support plate 20 is not broken, but also ensure that the support plate 20 is light in weight.

[0100] The material of the support plate 20 can be metal, plastic, polymer or the like.

[0101] In one embodiment, the minimum diameter of the first through hole 203 is not less than that of the proximal steel nail 110, so as to ensure that the proximal steel nail 110 can pass through the first through hole 203.

[0102] In one embodiment, the shape of the first through hole 203 can be a regular shape such as a cuboid, a cube or a cylinder, or an irregular shape.

[0103] In one embodiment, the first through hole 203 is circular. The diameter of the circle is equal to the diameter of the proximal steel nail 110. The proximal steel nail 110 is clamped in the first through hole 203.

[0104] In one embodiment, the minimum diameter of the second through hole 204 is not less than that of the distal steel nail 120, so as to ensure that the distal steel nail 120 can pass through the second through hole 204.

[0105] In one embodiment, the shape of the second through hole 204 can be a regular shape such as a cuboid, a cube, a cylinder or a cone, or an irregular shape.

[0106] The shape of the first fixing member 40 and the shape of the second through hole 204 can be the same or different. The first fixing member 40 can be directly clamped in the second through hole 204, or the position of the first fixing member 40 and the second through hole 204 can be relatively fixed by other devices.

[0107] In one embodiment, the shape of the outer surface of the first fixing member 40 is the same as the shape of the inner surface of the second through hole 204. The first fixing member 40 is clamped in the second through hole 204.

[0108] The thickness of the first fixing member 40 can be the same as or different from the thickness of the support plate 20.

[0109] In one embodiment, the second through hole 204 has a conical surface structure. The first fixing member 40 is a cone. The cross-section where the minimum diameter of the second through hole 204 is located is close to the first surface 201. The opening where the maximum diameter of the second through hole 204 is located is on the surface opposite to the first surface 201, facilitating the insertion of the first fixing member 40 into the second through hole 204. The conical surface of the second through hole 204 has a guiding function, facilitating the quick fitting and clamping of the first fixing member 40 in the second through hole 204.

[0110] In one embodiment, the support plate 20 further includes a second surface 202 opposite to the first surface 201, and the fixed clamping device 10 further includes a first mounting table 50. The first mounting table 50 is disposed on the second surface 202. The first mounting table 50 is provided with a fourth through hole 501. The fourth through hole 501 communicates with the second through hole 204. The first fixing member 40 is used to be fixed in the fourth through hole 501.

[0111] The first mounting table 50 is directly or indirectly fixed to the surface of the support plate 20. For the convenience of gripping, the first fixing member 40 has a certain thickness. The first mounting table 50 is used to fix the first fixing member 40. The thickness of the first mounting table 50 can be adjusted according to the thickness of the first fixing member 40 to ensure the stability of the connection between the first fixing member 40 and the first mounting table 50. Adding the first mounting table 50 to the fixed clamping device 10 avoids the excessive thickness of the support plate 20 to achieve a lightweight design.

[0112] The fourth through hole 501 communicates with the second through hole 204. The shape of the fourth through hole 501 may be the same as or different from the shape of the second through hole 204.

[0113] The communication between the fourth through hole 501 and the second through hole 204 includes at least two communication methods. One communication method is that the fourth through hole 501 is directly connected to the second through hole 204. The second communication method is that the fourth through hole 501 is spaced apart from the second through hole 204 by a certain space, but the projection of the fourth through hole 501 on the second surface 202 overlaps with the second through hole 204, and the overlapping part can surround the distal end steel nail 120.

[0114] The shape of the first mounting table 50 may be a regular shape such as a cuboid, a cube or a cylinder, or an irregular shape.

[0115] In one embodiment, the first mounting table 50 has a cylindrical structure. The fourth through hole 501 may be disposed at the center of the cylinder or offset from the center by a certain distance.

[0116] Please refer to Figure 3 and Figure 4 as well. In one embodiment, the fourth through hole 501 includes a first tapered surface. The smallest opening of the fourth through hole 501 is close to the second surface 202. The first fixing member 40 includes a first cone 410. The first cone 410 is adapted to the fourth through hole 501. The third through hole 401 is formed in the first cone 410.

[0117] The smallest opening of the fourth through hole 501 is close to the second surface 202, facilitating the insertion of the first fixing member 40 into the fourth through hole 501. The first tapered surface has a guiding function so that the first cone 410 can be quickly and properly engaged in the fourth through hole 501.

[0118] Please refer to Figure 2 and Figure 5 as well. In one embodiment, a first threaded hole 411 is formed in the surface of the first mounting platform 50 away from the second surface 202. The first threaded hole 411 is spaced from the third through hole 401. The first fixing member 40 further includes a mounting plate 420. The mounting plate 420 is disposed on the end face with the largest diameter of the first cone 410. The third through hole 401 is formed in the surface of the mounting plate 420 away from the first cone 410. A first mounting hole 421 is formed in the surface of the mounting plate 420 away from the first cone 410 corresponding to the first threaded hole 411.

[0119] The first threaded hole 411 is aligned with the first mounting hole 421. A bolt is passed through the first mounting hole 421 and screwed into the first threaded hole 411 so that the first fixing member 40 is fixedly connected to the first mounting platform 50. Thereby, the positions of the distal end nail 120 and the proximal end nail 110 are relatively fixed.

[0120] In one embodiment, the first mounting hole 421 is an arc-shaped hole, increasing the mounting angle when the first mounting platform 50 is mounted. As long as the projection of the first mounting hole 421 on the surface where the first threaded hole 411 is located surrounds the first threaded hole 411, the bolt is passed through the first mounting hole 421 and screwed into the first threaded hole 411, and the first fixing member 40 can be fixedly connected to the first mounting platform 50. The first mounting hole 421 being an arc-shaped hole reduces the mounting difficulty.

[0121] In one embodiment, the first fixing member 40 further includes a mounting block 430. The mounting block 430 is disposed on a surface of the mounting plate 420 away from the first cone 410. A third through hole 401 is formed in a surface of the first mounting table 50 away from the mounting plate 420. The mounting block 430 is disposed on the mounting plate 420, facilitating an operator to grasp.

[0122] The third through hole 401 penetrates through the first cone 410, the mounting plate 420 and the mounting block 430 so that the distal end nail 120 can pass through the third through hole 401. The first fixing member 40 slides relative to the distal end nail 120 through the third through hole 401, and finally the first fixing member 40 is adapted to the fourth through hole 501 through the first cone 410. The first fixing member 40 is further fixed to the first mounting table 50 through the mounting plate 420 and bolts.

[0123] In one embodiment, the mounting block 430 includes a fixing portion 431 and two clamping portions 433. A third through hole 401 is formed in a surface of the fixing portion 431 away from the mounting plate 420. A first notch 432 is formed in the fixing portion 431. The first notch 432 communicates with the third through hole 401. The two clamping portions 433 are respectively disposed at two ends of the first notch 432. Clamping holes 434 are respectively formed in the two clamping portions 433. A second notch 422 is formed in the mounting plate 420 corresponding to the first notch 432.

[0124] When one end of a bolt passes through the clamping hole 434 and is fixed to the end of the bolt with a nut, the tightness of the opening of the fixing portion 431 can be adjusted by adjusting the position of the nut so as to fixedly connect the distal end nail 120 and the first fixing member 40.

[0125] In one embodiment, the fixed clamping device 10 further includes a second mounting table 60. The second mounting table 60 is disposed on the second surface 202. A fifth through hole 601 is formed in a surface of the second mounting table 60 away from the second surface 202. A central axis of the fifth through hole 601 is perpendicular to the second surface 202. The fifth through hole 601 is used for fixedly passing through the proximal end nail 110 passing through the first through hole 203.

[0126] The second mounting table 60 is used for fixing the proximal end nail 110 to the support plate 20. The thickness of the second mounting table 60 is different, the height of the fifth through hole 601 is different, and the fixing stability of the proximal end nail 110 is different. When the thickness of the support plate 20 remains unchanged, the thickness of the second mounting table 60 can be adjusted arbitrarily according to the fracture position. The fixed clamping device 10 effectively avoids the excessive thickness of the support plate 20.

[0127] The shape of the second mounting table 60 may be the same as or different from that of the first mounting table 50.

[0128] The first mounting table 50 and the second mounting table 60 may be of an integral structure or a split structure.

[0129] Please refer to Figure 6 、 Figure 7 and Figure 8 together. In one embodiment, the second mounting table 60 includes a first mounting member 610 and a second mounting member 620. The first mounting member 610 is disposed on the second surface 202. A first semi-circular through groove 611 is formed on the surface of the first mounting member 610. The central axis of the first semi-circular through groove 611 is perpendicular to the second surface 202. And the first semi-circular through groove 611 communicates with the first through hole 203. A second semi-circular through groove 621 is formed on the surface of the second mounting member 620. The second mounting member 620 is used to be fixed to the first mounting member 610. And the second semi-circular through groove 621 is used to align with the first semi-circular through groove 611 to form the fifth through hole 601. The fifth through hole 601 communicates with the first through hole 203.

[0130] During the use of the fixed clamping device, the proximal nail 110 passes through the first through hole 203 to complete the rough positioning of the proximal nail 110. Then the proximal nail 110 is clamped in the first semi-circular through groove 611. The second mounting member 620 is fitted to the first mounting member 610, and the second semi-circular through groove 621 is clamped on the surface of the proximal nail 110 away from the first semi-circular through groove 611 to complete the fine positioning of the proximal nail 110.

[0131] The fixed clamping device fixes the proximal nail 110 at the proximal target position through the adaptation of the first mounting member 610 and the second mounting member 620.

[0132] The first mounting member 610 and the second mounting member 620 may be fixedly connected or detachably connected.

[0133] The first mounting member 610 and the second mounting member 620 may be connected by bonding, bolt connection or plug connection.

[0134] In one embodiment, the fixed clamping device 10 further includes a rib plate 70. The rib plate 70 is disposed on the second surface 202. The first mounting member 610 and the second mounting table 60 are disposed on the rib plate 70. The rib plate 70 increases the stiffness of the support plate 20 and prevents the support plate 20 from being broken due to tensile force.

[0135] In one embodiment, the rib plate 70 may also be fixedly connected to the second mounting member 620 and detachably connected to the first mounting member 610.

[0136] In one embodiment, the support plate 20 includes a first support member 210 and a second support member 220. The first support member 210 includes a first support surface 211, and opposite third surface 212 and fourth surface 213. The first support surface 211 is connected between the third surface 212 and the fourth surface 213. The first support surface 211 is spaced apart to form a first through groove 214 and a second through groove 215.

[0137] The second support member 220 includes a second support surface 221, and opposite fifth surface 222 and sixth surface 223. The second support surface 221 is connected between the fifth surface 222 and the sixth surface 223. The first support surface 211 forms a third through groove 224 and a fourth through groove 225.

[0138] When the first support member 210 and the second support member 220 are aligned, the first support surface 211 fits against the second support surface 221. The third surface 212 and the fifth surface 222 are aligned to form the first surface 201. The fourth surface 213 and the sixth surface 223 are aligned to form the second surface 202. The first through groove 214 and the third through groove 224 are aligned to form the first through hole 203. The second through groove 215 and the fourth through groove 225 are aligned to form the second through hole 204.

[0139] The first support member 210 and the second support member 220 are aligned to form the support plate 20, which is easy to install.

[0140] The first support member 210 and the second support member 220 can semi-surround the fracture site or fully surround the fracture site.

[0141] In one embodiment, the fracture site is the calf, and the fixed clamping device 10 is a fully enclosed structure. The first support member 210 and the second support member 220 fully surround the calf fracture site. Compared with the fixed clamping device being an integral structure, the fully enclosed structure of the fixed clamping device 10 increases the contact area with the fracture site, improves the stability of the fixation of the proximal nail 110 and the distal nail 120, and effectively avoids nail displacement.

[0142] The installation method of the fixed clamping device 10 is as follows: First, align the first support member 210 with the second support member 220 and surround the fracture site. The first support surface 211 is attached to the second support surface 221. The third surface 212 and the fifth surface 222 are aligned to form the first surface 201, and the first surface 201 is attached to the skin surface of the fracture site. The fourth surface 213 and the sixth surface 223 are aligned to form the second surface 202. The first through groove 214 and the third through groove 224 are aligned to form the first through hole 203. The proximal steel nail 110 is clamped in the first through hole 203. The second through groove 215 and the fourth through groove 225 are aligned to form the second through hole 204. The second through hole 204 is sleeved outside the distal steel nail 120. The first support member 210 and the second support member 220 are fixedly connected by screws. Then, the first fixing member 40 is sleeved on the distal steel nail 120 and slides along the distal steel nail 120 until the first fixing member 40 is in the second through hole 204.

[0143] In one embodiment, the first mounting table 50 includes a third mounting member 510 and a fourth mounting member 520. The third mounting member 510 is disposed on the fourth surface 213. A fifth through groove 511 is formed on the surface of the third mounting member 510 close to the first support surface 211. The central axis of the fifth through groove 511 is perpendicular to the fourth surface 213. And the fifth through groove 511 communicates with the second through groove 215. The fourth mounting member 520 is disposed on the sixth surface 223. A sixth through groove 521 is formed on the surface of the fourth mounting member 520 close to the second support surface 221. The central axis of the sixth through groove 521 is perpendicular to the sixth surface 223. And the sixth through groove 521 communicates with the fourth through groove 225.

[0144] When the first support member 210 and the second support member 220 are aligned, the fifth through groove 511 and the sixth through groove 521 are aligned to form the fourth through hole 501.

[0145] The third mounting member 510 can be a separate structural member. The third mounting member 510 can be integrally designed with the first support member 210, that is, the third mounting member 510 is a boss structure provided on the fourth surface 213.

[0146] The fourth mounting member 520 can be a separate structural member. The fourth mounting member 520 can be integrally designed with the second support member 220, that is, the fourth mounting member 520 is a boss structure provided on the sixth surface 223.

[0147] In one embodiment, the third mounting member 510 is a boss structure provided on the fourth surface 213. The fourth mounting member 520 is a boss structure provided on the sixth surface 223. The third mounting member 510 is a cube structure. One surface of the cube structure is in the same plane as the first support surface 211. The fourth mounting member 520 is a cube structure. One surface of the cube structure is in the same plane as the second support surface 221.

[0148] Both the fifth through groove 511 and the sixth through groove 521 are semi-conical structures. The semi-conical structures are matched with the outer surface of the first fixing member 40.

[0149] Threaded holes are provided in the planes of the third mounting member 510 and the fourth mounting member 520 away from the fourth surface 213 and the sixth surface 223. The threaded holes are arranged corresponding to the positions of the first mounting holes 421. When a screw passes through the first mounting hole 421 and is screwed into the threaded hole, the first fixing member 40 is fixed in the fourth through hole 501 formed by the alignment of the fifth through groove 511 and the sixth through groove 521.

[0150] In one embodiment, the fourth surface 213 is provided with a first boss 30 at the edge of the first through groove 214. A first semi-circular through groove 611 is provided on the surface of the first boss 30 close to the first through groove 214. The central axis of the first semi-circular through groove 611 is perpendicular to the fourth surface 213. And the first semi-circular through groove 611 communicates with the first through groove 214.

[0151] The sixth surface 223 is provided with a second boss 300 at the edge of the third through groove 224. A second semi-circular through groove 621 is provided on the surface of the second boss 300 close to the third through groove 224. The central axis of the second semi-circular through groove 621 is perpendicular to the sixth surface 223. And the second semi-circular through groove 621 communicates with the third through groove 224.

[0152] When the first support member 210 and the second support member 220 are aligned, the first semi-circular through groove 611 and the second semi-circular through groove 621 are aligned to form the fifth through hole 601.

[0153] Threaded holes parallel to the fourth surface 213 are provided in both the first boss 30 and the second boss 300. And at least one of the threaded holes is a through hole. The first boss 30 and the second boss 300 are fixedly connected by screwing a screw into the threaded hole.

[0154] In one embodiment, both the first support surface 211 and the second support surface 221 are stepped structures, and the first support surface 211 matches the second support surface 221 so that the first support member 210 and the second support member 220 are aligned and engaged.

[0155] The present application provides a method for manufacturing the fixed clamping device 10 as described in any one of the above embodiments, including:

[0156] S100, obtaining a three-dimensional image of a fracture site with a proximal nail 110 and a distal nail 120, and determining the positions where the proximal nail 110 and the distal nail 120 are fixed to the bone.

[0157] S200, generating a three-dimensional image of the fixed clamping device 10 based on the three-dimensional image of the fracture site, the position of the proximal nail 110, and the position of the distal nail 120.

[0158] The first surface 201 of the fixed clamping device 10 has the same shape as the skin surface of the fracture site to be reduced, so that the first surface 201 can fit onto the fracture site. The position of the first through hole 203 formed in the fixed clamping device 10 is the same as the position of the proximal nail 110. The position of the second through hole 204 formed in the fixed clamping device 10 is the same as the position of the distal nail 120.

[0159] S300, manufacturing the fixed clamping device 10 according to the three-dimensional image of the fixed clamping device 10 to improve the matching degree between the fixed clamping device 10 and the fracture site.

[0160] Step S300 can use 3D printing technology to print and manufacture the fixed clamping device 10 to improve the processing accuracy and make the matching degree between the fixed clamping device 10 and the fracture site higher.

[0161] The fixed clamping device 10 generated by the manufacturing method provided in the embodiments of the present application has a simple structure and is easy to operate. Even if the operator is not a professional orthopedic surgeon, the proximal nail 110 and the distal nail 120 can be fixed through the fixed clamping device 10 to reduce and fix the fracture site.

[0162] In one embodiment, the manufacturing method of the fixed clamping device 10 is applicable to the fixed clamping device 10 as described in any one of the above embodiments.

[0163] In one embodiment, before S100, it further includes:

[0164] S010, implanting the proximal nail 110 and the distal nail 120 at the fracture site.

[0165] Scan the fracture site with the proximal nail 110 and the distal nail 120, namely S020, to obtain a three-dimensional image of the fracture site with the proximal nail 110 and the distal nail 120.

[0166] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0167] The above-described embodiments merely represent several implementation manners of the present application, but should not be construed as limiting the scope of the patent of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A fixed clamping device, characterized in that, it includes: A support plate (20), including a first surface (201) arranged oppositely and a second surface (202) opposite to the first surface (201). The first surface (201) is used to fit against the fracture site. A first mounting platform (50) is arranged on the second surface (202). The support plate (20) is provided with a first through hole (203) and a second through hole (204). The first through hole (203) and the second through hole (204) are arranged at intervals. The first through hole (203) is used to fix the proximal end steel nail (110); A first fixing member (40), the first fixing member (40) is used to be fixed in the second through hole (204). The first fixing member (40) is provided with a third through hole (401). The third through hole (401) is used to fix and pass through the distal end steel nail (120) in the second through hole (204) to correct the position of the distal end steel nail (120); A fourth through hole (501) is arranged in the first mounting platform (50). The fourth through hole (501) communicates with the second through hole (204). The first fixing member (40) is used to be fixed in the fourth through hole (501). The communication between the fourth through hole (501) and the second through hole (204) includes the following communication methods: The fourth through hole (501) and the second through hole (204) are spaced by a set space. The projection of the fourth through hole (501) on the second surface (202) has an overlapping part with the second through hole (204), and the overlapping part surrounds the distal end steel nail (120).

2. The fixed clamping device according to claim 1, characterized in that, the fourth through hole (501) includes a first conical surface (500), and the smallest opening of the fourth through hole (501) is close to the second surface (202); the first fixing member (40) includes a first cone body (410), and the first cone body (410) is used to be adapted to the fourth through hole (501). The third through hole (401) is arranged in the first cone body (410).

3. The fixed clamping device according to claim 2, characterized in that, a first threaded hole (411) is arranged on the surface of the first mounting platform (50) away from the second surface (202). The first threaded hole (411) and the third through hole (401) are arranged at intervals. The first fixing member (40) further includes: A mounting plate (420), arranged on the end surface with the largest diameter of the first cone body (410). The third through hole (401) is arranged on the surface of the mounting plate (420) away from the first cone body (410). A first mounting hole (421) is arranged on the surface of the mounting plate (420) away from the first cone body (410) corresponding to the first threaded hole (411).

4. The fixed clamping device according to claim 3, characterized in that, the first mounting hole (421) is an arc-shaped hole.

5. The fixed clamping device according to claim 3, characterized in that, the first fixing member (40) further includes: The mounting block (430) is disposed on the surface of the mounting plate (420) away from the first cone (410), and a third through hole (401) is formed on the surface of the first mounting table (50) away from the mounting plate (420).

6. The fixed clamping device according to claim 5, wherein, the mounting block (430) includes: a fixing portion (431), a third through hole (401) is formed on the surface of the fixing portion (431) away from the mounting plate (420), a first notch (432) is formed on the fixing portion (431), and the first notch (432) communicates with the third through hole (401); two clamping portions (433), the two clamping portions (433) are respectively disposed at two ends of the first notch (432), and clamping holes (434) are respectively formed in the two clamping portions (433); a second notch (422) is formed on the mounting plate (420) corresponding to the first notch (432).

7. The fixed clamping device according to claim 1, wherein, further comprising: a second mounting table (60), disposed on the second surface (202), a fifth through hole (601) is formed on the surface of the second mounting table (60) away from the second surface (202), a central axis of the fifth through hole (601) is perpendicular to the second surface (202), and the fifth through hole (601) is used for fixedly passing a proximal end steel nail (110) passing through the first through hole (203).

8. The fixed clamping device according to claim 7, wherein, the second mounting table (60) includes: a first mounting member (610), disposed on the second surface (202), a first semi-circular through groove (611) is formed on the surface of the first mounting member (610), a central axis of the first semi-circular through groove (611) is perpendicular to the second surface (202), and the first semi-circular through groove (611) communicates with the first through hole (203); a second mounting member (620), a second semi-circular through groove (621) is formed on the surface of the second mounting member (620), the second mounting member (620) is used for being fixed to the first mounting member (610), and the second semi-circular through groove (621) is used for aligning with the first semi-circular through groove (611) to form the fifth through hole (601).

9. The fixed clamping device according to claim 8, wherein, further comprising: a rib plate (70), disposed on the second surface (202), the first mounting member (610) and the second mounting table (60) are disposed on the rib plate (70).

10. The fixed clamping device according to claim 1, wherein, the support plate (20) includes: a first support member (210), including a first support surface (211), a third surface (212) and a fourth surface (213) which are oppositely arranged, the first support surface (211) is connected between the third surface (212) and the fourth surface (213), and a first through groove (214) and a second through groove (215) are spacedly formed on the first support surface (211); The second support member (220) includes a second support surface (221), a relatively arranged fifth surface (222) and a sixth surface (223), the second support surface (221) is connected between the fifth surface (222) and the sixth surface (223), and a third through groove (224) and a fourth through groove (225) are formed in the first support surface (211); When the first support member (210) is aligned with the second support member (220), the first support surface (211) is attached to the second support surface (221), the third surface (212) and the fifth surface (222) are aligned to form the first surface (201), the fourth surface (213) and the sixth surface (223) are aligned to form the second surface (202), the first through groove (214) and the third through groove (224) are aligned to form the first through hole (203), and the second through groove (215) and the fourth through groove (225) are aligned to form the second through hole (204).

11. The fixed clamping device according to claim 10, characterized in that the first mounting table (50) includes: a third mounting member (510) disposed on the fourth surface (213), a fifth through groove (511) is formed in the surface of the third mounting member (510) close to the first support surface (211), the central axis of the fifth through groove (511) is perpendicular to the fourth surface (213), and the fifth through groove (511) communicates with the second through groove; a fourth mounting member (520) disposed on the sixth surface (223), a sixth through groove (521) is formed in the surface of the fourth mounting member (520) close to the second support surface (221), the central axis of the sixth through groove (521) is perpendicular to the sixth surface (223), and the sixth through groove (521) communicates with the fourth through groove (225); When the first support member (210) is aligned with the second support member (220), the fifth through groove (511) and the sixth through groove (521) are aligned to form the fourth through hole (501).

12. The fixed clamping device according to claim 11, characterized in that a first boss (30) is provided at the edge of the first through groove (214) on the fourth surface (213), a first semi-circular through groove (611) is formed in the surface of the first boss (30) close to the first through groove (214), the central axis of the first semi-circular through groove (611) is perpendicular to the fourth surface (213), and the first semi-circular through groove (611) communicates with the first through groove (214); The sixth surface (223) is provided with a second boss (300) at the edge of the third through groove (224). A second semi-circular through groove (621) is formed on the surface of the second boss (300) close to the third through groove (224). The central axis of the second semi-circular through groove (621) is perpendicular to the sixth surface (223), and the second semi-circular through groove (621) communicates with the third through groove (224). When the first support member (210) and the second support member (220) are aligned, the first semi-circular through groove (611) and the second semi-circular through groove (621) are aligned to form a fifth through hole (601).

13. The fixed clamping device according to claim 10, wherein, both the first support surface (211) and the second support surface (221) are stepped structures, and the first support surface (211) matches the second support surface (221).

14. A manufacturing method of the fixed clamping device according to any one of claims 1-13, wherein, comprising: S100, constructing a three-dimensional image of the fracture site and determining the positions where the proximal nail (110) and the distal nail (120) are fixed to the bone; S200, generating a three-dimensional image of the fixed clamping device (10) according to the three-dimensional image of the fracture site, the position of the proximal nail (110) and the position of the distal nail (120); S300, manufacturing the fixed clamping device (10) according to the three-dimensional image of the fixed clamping device (10).

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