Modular proximal humeral fracture reduction guide device

Abstract

This invention relates to the field of trauma orthopedic technology, specifically to a modular proximal humeral fracture reduction and guidance device. The implantation module of the modular proximal humeral fracture reduction and guidance device includes an intramedullary nail implantation guide and a first mounting base. The intramedullary nail implantation guide is connected to the first mounting base and is used for insertion into the humerus. The humeral head reduction module includes a second mounting base and a humeral head reduction guide. The humeral head reduction guide is connected to the second mounting base and is used for insertion into the free humeral head, parallel to the fracture surface of the humerus. The greater tuberosity reduction module includes a third mounting base and a greater tuberosity reduction guide. The greater tuberosity reduction guide is connected to the third mounting base and is used for insertion into the greater tuberosity and humeral head. This modular proximal humeral fracture reduction and guidance device has a simple structure and is easy to operate. It is suitable for reduction before internal fixation of proximal humeral fractures, as well as for positioning relevant reference points for intramedullary nail or plate implantation.

Description

Technical Field

[0001] This invention relates to the field of trauma orthopedic technology, and more specifically, to a modular proximal humeral fracture reduction guide device. Background Technology

[0002] When a severe proximal humeral fracture occurs, the humeral head and greater tuberosity will be displaced. There are two commonly used fixation methods in clinical practice: intramedullary nail fixation and plate and screw fixation. However, due to the traction of the tendons of each fracture fragment, the fracture reduction operation is complicated and it is difficult to guarantee the reduction effect. Summary of the Invention

[0003] The objectives of this invention include, for example, providing a modular proximal humeral fracture reduction guide device with a simple structure and convenient operation. It can be used for reduction before internal fixation of proximal humeral fractures, as well as for positioning of relevant benchmarks for intramedullary nail or plate implantation. This provides a precise treatment prerequisite for the application of orthopedic 3D technology and orthopedic surgical robots in orthopedics, and achieves precise reduction in surgical planning and actual operation.

[0004] The embodiments of the present invention can be implemented as follows:

[0005] This invention provides a modular proximal humeral fracture reduction guide device, comprising an implantation module, a humeral head reduction module, and a greater tuberosity reduction module;

[0006] The implantation module includes an intramedullary nail implantation guide and a first mounting base. The intramedullary nail implantation guide is connected to the first mounting base and is used for insertion into the humerus.

[0007] The humeral head reduction module includes a second mounting base and a humeral head reduction guide pin; the humeral head reduction guide pin is connected to the second mounting base; the humeral head reduction guide pin is used to insert into the free humeral head and is parallel to the fracture surface of the humerus;

[0008] The greater tuberosity reduction module includes a third mounting base and a greater tuberosity reduction guide pin; the greater tuberosity reduction guide pin is connected to the third mounting base; the greater tuberosity reduction guide pin is used to insert into the greater tuberosity and the humeral head;

[0009] The first mounting base is detachably connected to the second mounting base, and the second mounting base is detachably connected to the third mounting base.

[0010] In an optional embodiment, the implantation module further includes an intramedullary nail implantation guide sleeve; the first mounting base has a first strip groove; the intramedullary nail implantation guide sleeve slidably engages with the first strip groove and is sleeved on the intramedullary nail implantation guide.

[0011] In an optional embodiment, the third mounting base has a second strip groove; the major nodule reset module also includes a major nodule reset guide pin sleeve, which is slidably engaged with the second strip groove and sleeved on the major nodule reset guide pin.

[0012] In an optional implementation, the extension direction of the first groove is perpendicular to the extension direction of the second groove.

[0013] In an optional embodiment, the humeral head repositioning module further includes at least one humeral head repositioning guide needle sleeve; the second mounting base has at least one positioning hole for accommodating the humeral head repositioning guide needle; the humeral head repositioning guide needle sleeve is fitted onto the humeral head repositioning guide needle.

[0014] In an optional embodiment, the humeral head repositioning module further includes two humeral head repositioning guide needle sleeves; the second mounting base has two positioning holes, the two humeral head repositioning guide needle sleeves correspond to the two positioning holes, and the two positioning holes are arranged side by side.

[0015] In an optional embodiment, the axial direction of the positioning hole forms an angle with the groove depth direction of the second strip groove.

[0016] In an optional embodiment, the second mounting base is provided with a locking hole; the implantation module also includes a locking screw, which is connected to the first mounting base and threaded into the locking hole.

[0017] In an optional embodiment, the second mounting base is provided with a connecting groove and a connecting hole, and the third mounting base is provided with a connecting part at one end near the second mounting base;

[0018] The connecting groove mates with the connecting part; the connecting hole communicates with the connecting groove, and a locking block is installed in the connecting hole to abut against the connecting part located in the connecting groove.

[0019] In an optional embodiment, the connecting part is provided with a locking groove that mates with the locking block on the side facing the connecting hole.

[0020] The beneficial effects of the embodiments of the present invention include:

[0021] This modular proximal humeral fracture reduction guide device includes an implantation module, a humeral head reduction module, and a greater tuberosity reduction module. The implantation module includes an intramedullary nail implantation guide and a first mounting base. The intramedullary nail implantation guide is connected to the first mounting base and is used for insertion into the humerus. The humeral head reduction module includes a second mounting base and a humeral head reduction guide. The humeral head reduction guide is connected to the second mounting base and is used for insertion into the free humeral head, parallel to the fracture surface of the humerus. The greater tuberosity reduction module includes a third mounting base and a greater tuberosity reduction guide. The greater tuberosity reduction guide is connected to the third mounting base and is used for insertion into the greater tuberosity and humeral head. The first mounting base and the second mounting base are detachably connected, and the second mounting base and the third mounting base are detachably connected.

[0022] Since the intramedullary nail implantation guide pin is used to insert into the humerus, the humeral head reduction guide pin is used to insert into the free humeral head and is parallel to the fracture surface of the humerus, and the greater tuberosity reduction guide pin is used to insert into the greater tuberosity and the humeral head, and the first mounting base is detachably connected to the second mounting base, and the second mounting base is detachably connected to the third mounting base, the implantation module, the humeral head reduction module and the greater tuberosity reduction module can be assembled and used according to actual needs;

[0023] Specifically, by assembling the implantation module and the humeral head reduction module, an intramedullary nail implantation guide pin can be inserted into the humerus, and a humeral head reduction guide pin can be inserted into the free humeral head, parallel to the fracture surface of the humerus. This achieves both humeral head reduction and positioning of the intramedullary nail implantation guide pin. Similarly, by assembling the humeral head reduction module and the greater tuberosity reduction module, a humeral head reduction guide pin can be inserted into the free humeral head, parallel to the fracture surface of the humerus, and a greater tuberosity reduction guide pin can be inserted into both the greater tuberosity and the humeral head. This achieves precise reduction of the free humeral head and the greater tuberosity, creating conditions for plate implantation. Likewise, when the implantation module, the humeral head reduction module, and the greater tuberosity reduction module are used, humeral head reduction, positioning of the intramedullary nail implantation guide pin, and precise reduction of the greater tuberosity can be achieved, creating conditions for plate implantation.

[0024] In summary, this modular proximal humeral fracture reduction guide device has a simple structure and is easy to operate. It can be used for reduction before internal fixation of proximal humeral fractures, as well as for positioning relevant benchmarks for intramedullary nail or plate implantation. This provides a precise treatment prerequisite for the application of orthopedic 3D technology and orthopedic surgical robots in orthopedics, and achieves precise reduction in surgical planning and actual operation. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the modular proximal humeral fracture reduction guide device in an embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram showing the connection between the modular proximal humeral fracture reduction guide device and the humerus in an embodiment of the present invention;

[0028] Figure 3 for Figure 2 A partial schematic diagram;

[0029] Figure 4 This is an exploded view of the modular proximal humeral fracture reduction guide device in an embodiment of the present invention;

[0030] Figure 5 This is a schematic diagram of the modular proximal humeral fracture reduction guide device used for humeral head fixation in an embodiment of the present invention;

[0031] Figure 6 This is a schematic diagram of the modular proximal humeral fracture reduction guide device used for greater tubercle fixation in an embodiment of the present invention;

[0032] Figure 7 This is a schematic diagram of the modular proximal humeral fracture reduction guide device used for intramedullary nail guide pin positioning in an embodiment of the present invention.

[0033] Icons: 10-Humerus; 11-Humeral head; 12-Greater tubercle; 200-Modular proximal humeral fracture reduction guide device; 210-Implantation module; 211-Intramedullary nail implantation guide pin; 212-First mounting base; 220-Humeral head reduction module; 221-Second mounting base; 222-Humeral head reduction guide pin; 230-Greater tubercle reduction module; 231-Third mounting base; 232-Greater tubercle reduction guide pin; 213-Intramedullary nail implantation guide pin sleeve; 214-First groove; 233-Second groove; 234-Greater tubercle reduction guide pin sleeve; 223-Humeral head reduction guide pin sleeve; 224-Positioning hole; 225-Locking hole; 226-Locking screw; 227-Connecting groove; 228-Connecting hole; 235-Connecting part; 229-Locking block; 236-Locking groove. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0036] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0037] In the description of this invention, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0038] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0039] It should be noted that, where there is no conflict, the features in the embodiments of the present invention can be combined with each other.

[0040] Please refer to Figures 1-3 This embodiment provides a modular proximal humeral fracture reduction guide device 200, including an implantation module 210, a humeral head reduction module 220, and a greater tubercle reduction module 230;

[0041] The implantation module 210 includes an intramedullary nail implantation guide 211 and a first mounting base 212. The intramedullary nail implantation guide 211 is connected to the first mounting base 212 and is used to insert into the humerus 10.

[0042] The humeral head reduction module 220 includes a second mounting base 221 and a humeral head reduction guide pin 222; the humeral head reduction guide pin 222 is connected to the second mounting base 221; the humeral head reduction guide pin 222 is used to insert into the free humeral head 11 and is parallel to the fracture surface of the humerus 10.

[0043] The greater tuberosity repositioning module 230 includes a third mounting base 231 and a greater tuberosity repositioning guide pin 232; the greater tuberosity repositioning guide pin 232 is connected to the third mounting base 231; the greater tuberosity repositioning guide pin 232 is used to insert into the greater tuberosity 12 and the humeral head 11.

[0044] The first mounting base 212 is detachably connected to the second mounting base 221, and the second mounting base 221 is detachably connected to the third mounting base 231.

[0045] Please refer to Figures 1-3 The working principle of the modular proximal humeral fracture reduction guide device 200 is as follows:

[0046] The modular proximal humeral fracture reduction guide device 200 includes an implantation module 210, a humeral head reduction module 220, and a greater tubercle reduction module 230. An intramedullary nail implantation guide pin 211 is inserted into the humerus 10, a humeral head reduction guide pin 222 is inserted into the free humeral head 11 and is parallel to the fracture surface of the humerus 10, and a greater tubercle reduction guide pin 232 is inserted into the greater tubercle 12 and the humeral head 11. The first mounting base 212 is detachably connected to the second mounting base 221, and the second mounting base 221 is detachably connected to the third mounting base 231. Thus, the implantation module 210, the humeral head reduction module 220, and the greater tubercle reduction module 230 can be assembled and used according to actual needs.

[0047] Therefore, the implantation module 210, the humeral head reduction module 220, and the greater tuberosity reduction module 230 can be assembled by disassembling and connecting them, so that the modular proximal humeral fracture reduction guide device 200 has three assembly states: the state of the implantation module 210 and the humeral head reduction module 220, the state of the head reduction module and the greater tuberosity reduction module 230, and the state of the implantation module 210, the humeral head reduction module 220, and the greater tuberosity reduction module 230.

[0048] Specifically, by assembling the implantation module 210 and the humeral head reduction module 220, the intramedullary nail implantation guide pin 211 can be inserted into the humerus 10, and the humeral head reduction guide pin 222 can be inserted into the free humeral head 11 and parallel to the fracture surface of the humerus 10. This achieves both the reduction of the humeral head 11 and the positioning of the intramedullary nail implantation guide pin 211. Conversely, by assembling the humeral head reduction module 220 and the greater tuberosity reduction module 230, the humeral head reduction guide pin 222 can be inserted into the free humeral head 11. Parallel to the fracture surface of the humerus 10, the greater tubercle reduction guide pin 232 is inserted into the greater tubercle 12 and the humeral head 11, thereby achieving precise reduction of the free humeral head 11 and the greater tubercle 12, creating conditions for plate implantation; similarly, when the implantation module 210, the humeral head reduction module 220 and the greater tubercle reduction module 230 are used, the humeral head 11 can be reduced, the intramedullary nail implantation guide pin 211 can be positioned, and the greater tubercle 12 can be precisely reduced, creating conditions for plate implantation;

[0049] In summary, the modular proximal humeral fracture reduction guide device 200 has a simple structure and is easy to operate. It can be used for reduction before internal fixation of proximal humeral fractures, as well as for positioning of relevant benchmarks for intramedullary nail or plate implantation. This provides a precise treatment prerequisite for the application of orthopedic 3D technology and orthopedic surgical robots in orthopedics, and achieves precise reduction in surgical planning and actual operation.

[0050] Further, please refer to Figures 1-4 In this embodiment, when setting up the implantation module 210, in order to position and guide the intramedullary nail implantation guide 211 and facilitate the adjustment of the position of the intramedullary nail implantation guide 211 relative to the first mounting base 212, the implantation module 210 also includes an intramedullary nail implantation guide sleeve 213; the first mounting base 212 has a first strip groove 214; the intramedullary nail implantation guide sleeve 213 slidably engages with the first strip groove 214 and is sleeved on the intramedullary nail implantation guide 211. When installing the intramedullary nail implantation guide 211, the position of the intramedullary nail implantation guide 211 can be adjusted by sliding the intramedullary nail implantation guide sleeve 213 relative to the first strip groove 214. At the same time, the intramedullary nail implantation guide sleeve 213 can play a positioning and guiding role when inserting the intramedullary nail implantation guide 211, thereby improving efficiency and simplifying the operation steps.

[0051] Similarly, in order to position and guide the major tubercle reset guide pin 232 and adjust its installation position, the third mounting base 231 is provided with a second strip groove 233; the major tubercle reset module 230 also includes a major tubercle reset guide pin sleeve 234, which is slidably engaged with the second strip groove 233 and sleeved on the major tubercle reset guide pin 232.

[0052] Furthermore, when the first groove 214 is used to install the intramedullary nail implantation guide sleeve 213 and the second groove 233 is used to install the greater tubercle reduction guide sleeve 234, since the function of the intramedullary nail implantation guide 211 is to achieve the reduction of the humeral head 11 and the positioning of the intramedullary nail implantation guide 211, and the function of the greater tubercle reduction guide 232 is to achieve the precise reduction of the greater tubercle 12, the extension direction of the first groove 214 can be made perpendicular to the extension direction of the second groove 233.

[0053] Further, please refer to Figures 1-4 When setting the humeral head repositioning guide pin 222, since the humeral head repositioning guide pin 222 is fixed first, the humeral head repositioning module 220 also includes at least one humeral head repositioning guide pin sleeve 223 to determine the position of the humeral head repositioning guide pin 222 and the second mounting base 221. The second mounting base 221 has at least one positioning hole 224 for accommodating the humeral head repositioning guide pin 222. The humeral head repositioning guide pin sleeve 223 is sleeved on the humeral head repositioning guide pin 222. In this embodiment, the humeral head repositioning module 220 also includes two humeral head repositioning guide pin sleeves 223. The second mounting base 221 has two positioning holes 224, and the two humeral head repositioning guide pin sleeves 223 correspond to the two positioning holes 224, and the two positioning holes 224 are arranged side by side. Furthermore, when the second mounting base 221 is connected to the third mounting base 231, the axial direction of the positioning hole 224 forms an angle with the groove depth direction of the second strip groove 233.

[0054] Further, please refer to Figures 1-4 In this embodiment, as described above, to assemble the implantation module 210, the humeral head repositioning module 220, and the greater tuberosity repositioning module 230 according to actual needs, the first mounting base 212 is detachably connected to the second mounting base 221, and the second mounting base 221 is detachably connected to the third mounting base 231. Therefore, in this embodiment, the second mounting base 221 is provided with a locking hole 225 when the first mounting base 212 and the second mounting base 221 are detachably connected. The implantation module 210 also includes a locking screw 226, which is connected to the first mounting base 212 and threadedly engages with the locking hole 225. Thus, the detachable connection between the first mounting base 212 and the second mounting base 221 can be achieved by connecting the locking screw 226 to the locking hole 225.

[0055] In this embodiment, when the second mounting base 221 and the third mounting base are detachably connected, the second mounting base 221 is provided with a connecting groove 227 and a connecting hole 228, and the third mounting base 231 is provided with a connecting part 235 at one end near the second mounting base 221; the connecting groove 227 cooperates with the connecting part 235; the connecting hole 228 communicates with the connecting groove 227, and a locking block 229 for abutting against the connecting part 235 located in the connecting groove 227 is installed in the connecting hole 228; in addition, in an optional embodiment, the connecting part 235 is provided with a locking groove 236 that cooperates with the locking block 229 on the side facing the connecting hole 228. Therefore, after the connecting groove 227 and the connecting part 235 are engaged, the locking block 229 in the connecting hole 228 abuts against the locking groove 236 of the connecting part 235 located in the connecting groove 227, thereby restricting the relative movement between the connecting groove 227 and the connecting part 235, thereby realizing the detachable connection between the second mounting base 221 and the third mounting base 231.

[0056] Based on the above, please refer to Figures 1-7 Taking the assembled state of implanted module 210, humeral head reduction module 220, and greater tuberosity reduction module 230 as an example, the usage steps of this modular proximal humeral fracture reduction guide device 200 are as follows:

[0057] Please refer to Figure 5 and combined Figures 1-4 The humeral head 11 is fixed. On the free humeral head 11, a humeral head reduction guide pin 222 is fixed approximately parallel to the bone fracture surface. Based on this humeral head reduction guide pin 222, the second mounting base 221 is placed in conjunction with the humeral head reduction guide pin sleeve 223, and then another humeral head reduction guide pin 222 is fixed.

[0058] Please refer to Figure 6 and combined Figures 1-5 The greater tubercle 12 is fixed, and a greater tubercle repositioning guide pin 232 is fixed at an appropriate position on the greater tubercle 12. In conjunction with the greater tubercle repositioning guide pin sleeve 234, the third mounting base 231 is connected and assembled with the second mounting base 221. The greater tubercle repositioning guide pin sleeve 234 is moved up and down to reposition the greater tubercle 12 and the humeral head 11 and fix them. At this time, the greater tubercle 12 and the humeral head 11 are connected as one. By applying force as a whole, it is repositioned with the humeral shaft 10, which creates the premise for precise repositioning for the implantation of the bone plate.

[0059] Please refer to Figure 7 and combined Figures 1-6Intramedullary nail guide pin positioning: When an intramedullary nail needs to be implanted, the first mounting base 212 and the second mounting base 221 are connected and assembled. Then, the intramedullary nail implantation guide pin sleeve 213 moves back and forth in coordination with the first mounting base 212 to fix the intramedullary nail implantation guide pin 211 in a suitable position, thereby determining the intramedullary nail implantation channel.

[0060] After the relative reduction of the humeral head 11, greater tuberosity 12, and humeral shaft 10 (fixed by intramedullary nail implantation guide pin 211) is completed, the intramedullary nail implantation guide pin sleeve 213, humeral head reduction guide pin sleeve 223, greater tuberosity reduction guide pin sleeve 234, first mounting base 212, second mounting base 221, and third mounting base 231 can be removed, leaving the intramedullary nail implantation guide pin 211, humeral head reduction guide pin 222, and greater tuberosity reduction guide pin 232, for plate or intramedullary nail implantation.

[0061] Therefore, this modular proximal humeral fracture reduction guide device 200 is simple to operate and quick to assemble. It can be used for reduction before internal fixation of proximal humeral fractures (10 lbs), as well as for positioning relevant reference points for intramedullary nail or plate implantation. It provides a precise treatment prerequisite for the application of orthopedic 3D technology and orthopedic surgical robots in orthopedics, achieving precise reduction in both surgical planning and actual operation.

[0062] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A modular proximal humerus fracture reduction guide, comprising: The application relates to a modular proximal humerus fracture reduction guiding device. The implant module comprises an intramedullary nail implantation guide pin and a first mounting base, the intramedullary nail implantation guide pin is connected with the first mounting base, and the intramedullary nail implantation guide pin is used for implanting the humerus; The humeral head reduction module comprises a second mounting base and a humeral head reduction guide pin; the humeral head reduction guide pin is connected with the second mounting base; the humeral head reduction guide pin is used for inserting the separated humeral head and is parallel to the fracture surface of the humerus; And The greater tuberosity reduction module comprises a third mounting base and a greater tuberosity reduction guide pin; the greater tuberosity reduction guide pin is connected with the third mounting base; the greater tuberosity reduction guide pin is used for inserting the greater tuberosity and the humeral head; The first mounting base and the second mounting base are detachably connected, and the second mounting base and the third mounting base are detachably connected; The second mounting base is provided with a locking hole; the implant module further comprises a locking screw which is connected with the first mounting base and is in threaded cooperation with the locking hole; The second mounting base is provided with a connecting groove and a connecting hole, and the end of the third mounting base close to the second mounting base is provided with a connecting part; the connecting groove is matched with the connecting part; the connecting hole is communicated with the connecting groove, and the connecting hole is provided with a locking block which is used for abutting against the connecting part in the connecting groove.

2. The modular proximal humerus fracture reduction guiding device according to claim 1, wherein: The implant module further comprises an intramedullary nail implantation guide pin sleeve; the first mounting base is provided with a first strip-shaped groove; the intramedullary nail implantation guide pin sleeve is slidably matched with the first strip-shaped groove and is sleeved on the intramedullary nail implantation guide pin.

3. The modular proximal humerus fracture reduction guiding device according to claim 2, wherein: The third mounting base is provided with a second strip-shaped groove; the greater tuberosity reduction module further comprises a greater tuberosity reduction guide pin sleeve which is slidably matched with the second strip-shaped groove and is sleeved on the greater tuberosity reduction guide pin.

4. The modular proximal humerus fracture reduction guiding device according to claim 3, wherein: The extending direction of the first strip-shaped groove is perpendicular to the extending direction of the second strip-shaped groove.

5. The modular proximal humerus fracture reduction guiding device according to claim 4, wherein: The humeral head reduction module further comprises at least one humeral head reduction guide pin sleeve; the second mounting base is provided with at least one positioning hole which is used for containing the humeral head reduction guide pin; the humeral head reduction guide pin sleeve is sleeved on the humeral head reduction guide pin.

6. The modular proximal humerus fracture reduction guiding device according to claim 5, wherein: The humeral head reduction module further comprises two humeral head reduction guide pin sleeves; the second mounting base is provided with two positioning holes, two humeral head reduction guide pin sleeves are corresponded to the two positioning holes, and the two positioning holes are arranged side by side.

7. The modular proximal humerus fracture reduction guiding device according to claim 6, wherein: The axis direction of the positioning hole is at an angle with the groove depth direction of the second strip-shaped groove.

8. The modular proximal humeral fracture reduction guide of claim 1, wherein: The connecting portion is provided with a locking groove matched with the locking block on the side facing the connecting hole.

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