Closed reduction aid for humeral fractures

Abstract

This invention relates to the field of medical devices and discloses an auxiliary tool for closed reduction of humeral fractures, comprising: a fixation body having a reduction channel formed inside, wherein at least two sides of the fixation body are respectively provided with openings communicating with the reduction channel; and a reduction module that can enter the reduction channel from any of the openings, wherein the reduction module can move and be positioned along a direction close to or away from the central axis of the reduction channel, wherein there are multiple reduction modules. This invention inserts multiple reduction modules from different openings to construct a customizable, multi-point contact and support structure within the reduction channel, and does not require manual positioning or additional trauma to the injured limb, thus achieving less trauma, higher stability, and more flexible operation in assisting closed reduction of humeral fractures.

Description

Technical Field

[0001] This invention relates to the field of medical devices and discloses an auxiliary tool for closed reduction of humeral fractures. Background Technology

[0002] Internal fixation surgery for humeral fractures can use either closed reduction or open reduction, but closed reduction has more advantages than open reduction. Specifically: closed reduction does not require a surgical incision, avoiding cutting the skin, subcutaneous tissue, and muscles, reducing surgical trauma, intraoperative bleeding, and resulting in less postoperative pain and faster recovery; closed reduction does not strip the periosteum and surrounding soft tissues at the fracture ends, preserving the blood supply to the fracture site to the greatest extent, providing a good biological environment for fracture healing, and reducing the risk of nonunion and delayed healing; closed reduction has no surgical incision, avoiding postoperative scar formation.

[0003] Currently, closed reduction commonly uses manual reduction and external fixation-assisted reduction. Manual reduction requires an assistant to continuously maintain the fracture position after reduction, which presents stability issues and poses a radiation exposure risk to the surgeon. External fixation-assisted reduction involves drilling threaded pins into the proximal and distal ends of the fracture and connecting them with external rods. This method adds extra trauma to the injured limb, poses potential risks to vital tissues such as the radial nerve, and requires the entire connecting rod to be loosened and then tightened again for adjustment, making the procedure time-consuming. Therefore, there is an urgent need for a more stable, flexibly adjustable, and less traumatic closed reduction tool for humeral fractures. Summary of the Invention

[0004] The purpose of this invention is to provide an auxiliary tool for closed reduction of humeral fractures, in order to solve one or more technical problems existing in the prior art, or at least provide a beneficial option or create conditions.

[0005] According to a first aspect of the present invention, a closed reduction auxiliary tool for humeral fractures includes: a fixation body having a reduction channel formed therein, wherein at least two sides of the fixation body are respectively provided with openings communicating with the reduction channel; and a reduction module that can enter the reduction channel from any one of the openings, wherein the reduction module can move and be positioned along a direction close to or away from the central axis of the reduction channel, and wherein there are multiple reduction modules.

[0006] This technical solution has at least the following beneficial effects: When closed reduction of a humeral fracture is required, the patient's humerus is passed through the reduction channel formed by the fixation body, so that the position of the humerus to be reduced is located between multiple openings. Then, according to the specific situation of fracture displacement, the opening can be selected from the appropriate position to be placed in the reduction channel. By moving the reduction module along the direction close to or away from the central axis of the reduction channel, its depth into the channel can be precisely adjusted, thereby applying a precise and controllable pushing force to the fracture ends to achieve and maintain reduction. In this way, multiple reduction modules are placed from different openings to build a customizable, multi-point contact and support structure in the reduction channel, without relying on manual positioning or adding additional trauma to the injured limb, achieving less trauma, higher stability, and more flexible operation for assisted closed reduction of humeral fractures.

[0007] According to some embodiments of the present invention, the fixing body includes side frames and crossbars. Two side frames are arranged at intervals along the left and right direction. A plurality of crossbars are connected between the top sides of the two side frames and between the bottom sides of the two side frames. An opening is formed inside each of the two side frames. An opening is formed between the top sides of the two side frames and the crossbars. The reset channel is formed between the two side frames and the crossbars located on the upper and lower sides.

[0008] According to some embodiments of the present invention, the side frame includes two main rods spaced apart in the vertical direction, a plurality of vertical rods connected between the two main rods, the opening being formed between the two main rods and the plurality of vertical rods, the horizontal rod located on the upper side being connected to the main rod located on the upper side, and the horizontal rod located on the lower side being connected to the main rod located on the lower side.

[0009] According to some embodiments of the present invention, the reset module includes a top pressing section and a snap-fit ​​section connected to both ends of the top pressing section. A slot is formed between the top pressing section and the two snap-fit ​​sections. When the two snap-fit ​​sections enter either of the openings, the two snap-fit ​​sections can snap onto the two main rods located at the openings.

[0010] According to some embodiments of the present invention, the two locking sections are provided with locking teeth on the sides away from each other, and a plurality of locking teeth are provided along the direction away from the top pressing section. The plurality of main rods are provided with locking grooves on the sides corresponding to the openings, and a plurality of locking grooves are provided along the direction close to the reset channel. The plurality of locking teeth can be respectively engaged and connected in the plurality of locking grooves.

[0011] According to some embodiments of the present invention, one side of the tooth near the top pressure section is inclined away from the top pressure section in a direction away from the slot.

[0012] According to some embodiments of the present invention, the two snap-fit ​​segments can elastically deform in a direction that brings them closer to each other.

[0013] According to some embodiments of the present invention, both the pressing section and the snap-fit ​​section are made of transparent material.

[0014] According to some embodiments of the present invention, an elastic buffer layer is provided on the side of the top pressing section away from the snap-fit ​​section.

[0015] According to some embodiments of the present invention, the main rod is detachably connected to the vertical rod and the horizontal rod.

[0016] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly explained below. Obviously, the described drawings are only a part of the embodiments of the present invention, and not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort.

[0018] Figure 1 This is a perspective view of the fixed body of the present invention.

[0019] Figure 2 This is a front view of the reset module of the present invention.

[0020] In the attached diagram: 110-Reset channel, 120-Horizontal bar, 130-Main bar, 131-Slot, 140-Vertical bar, 210-Top pressing section, 211-Hand buckle hole, 220-Snap-fit ​​section, 221-Snap tooth, 230-Elastic buffer layer. Detailed Implementation

[0021] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0022] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. 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. Therefore, they should not be construed as limiting this invention.

[0023] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0024] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0025] In the description of this application, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0026] In the description of this application, the use of terms such as "one embodiment," "some embodiments," "an example," "some instances," "some embodiments," "illustrative embodiment," "example," "specific example," and "some examples" indicates that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0027] Reference Figure 1 and Figure 2 According to a first aspect of the present invention, a closed reduction auxiliary tool for humeral fractures includes a fixation body and a reduction module. The fixation body has a reduction channel 110 formed inside it. At least two sides of the fixation body are respectively provided with openings communicating with the reduction channel 110. The reduction module can enter the reduction channel 110 from any one of the openings. The reduction module can move and be positioned along the direction close to or away from the central axis of the reduction channel 110. There are multiple reduction modules.

[0028] As described above, when closed reduction is required for a humeral fracture, the patient's humerus is passed through the reduction channel 110 formed by the fixation body, so that the position of the humerus to be reduced is located between multiple openings. Then, depending on the specific situation of the fracture displacement, the opening can be selected from the appropriate position to be inserted into the reduction channel 110. By moving the reduction module along the direction close to or away from the central axis of the reduction channel 110, the depth of its insertion into the channel can be precisely adjusted, thereby applying a precise and controllable pushing force to the fracture ends to achieve and maintain reduction. In this way, multiple reduction modules are inserted from different openings to construct a customizable, multi-point contact and support structure within the reduction channel 110. This eliminates the need for manual positioning or additional trauma to the injured limb, achieving a less invasive, more stable, and more flexible assisted closed reduction of humeral fractures.

[0029] The main body of the fixing device needs to form an open reset channel 110 inside. Its structure can take many forms, such as multiple plates joined together. In this embodiment, multiple frame strips are joined together. Specifically, the fixing device includes side frames and crossbars 120. Two side frames are spaced apart in the left-right direction. Multiple crossbars 120 are connected between the top sides and bottom sides of the two side frames. Openings are formed inside each of the two side frames. One opening is formed between the top sides of the two side frames and the crossbars 120. The reset channel 110 is formed between the two side frames and the crossbars 120 located on the upper and lower sides. In practical applications, two crossbars 120 can be provided between the top sides of the two side frames, and two crossbars 120 can also be provided between the bottom sides of the two side frames. The space formed inside the two side frames is the lateral opening, while the top crossbar 120 and the side frames enclose the upper opening. Thus, the two side frames and the upper crossbar 120 together define a reduction channel 110 with at least three sides open, which facilitates operation and observation from the side and top, greatly improving the openness of operation and the transparency of the field of vision. In clinical surgery, this open design allows medical staff and X-ray machines to approach the injured limb from multiple angles without obstruction, which is convenient for intraoperative fluoroscopic monitoring of the reduction effect. It significantly reduces the obstruction of the field of vision by traditional instruments or hands, and reduces the blindness of intraoperative adjustments and radiation dose.

[0030] Furthermore, the side frame includes two main rods 130 spaced apart in the vertical direction and a plurality of vertical rods 140 connected between the two main rods 130. The opening is formed between the two main rods 130 and the plurality of vertical rods 140. The upper horizontal rod 120 is connected to the upper main rod 130, and the lower horizontal rod 120 is connected to the lower main rod 130. In practical applications, two vertical rods 140 can be connected between the two main rods 130. This rectangular frame structure of the side frame minimizes material usage, maximizes the opening space, and reduces the overall weight while meeting the strength requirements.

[0031] As a specific implementation of the reset module, the reset module includes a pressing section 210 and two locking sections 220 connected to both ends of the pressing section 210. A slot is formed between the pressing section 210 and the two locking sections 220. When the two locking sections 220 enter either of the openings, they can be locked onto the two main rods 130 located at the opening. During installation, medical personnel can hold the two locking sections 220 and insert them into one of the openings of the fixing body. The pressing section 210 is used to press against the position where the injured limb needs to be reset. After being moved into place, the two locking sections 220 can be locked onto the two main rods 130 for positioning. Alternatively, the two locking sections 220 can be rotated or translated to lock onto the two main rods 130, thereby achieving initial fixation of the reset module within the opening. The overall structure is simple and easy to use.

[0032] In a specific embodiment where two locking segments 220 are engaged with two main rods 130, locking teeth 221 are respectively provided on the side of the two locking segments 220 that are far apart from each other. Multiple locking teeth 221 are provided along the direction away from the top pressing segment 210. Multiple main rods 130 are respectively provided on the side corresponding to the opening, with multiple slots 131 arranged along the direction close to the reset channel 110. The multiple locking teeth 221 can be respectively engaged within the multiple slots 131. When the locking segment 220 of the reset module is inserted into the opening and engages with the main rod 130, the locking teeth 221 on it will mesh with the slots 131 on the main rod 130. By selecting different positions of the slots 131 for engagement, the reset module can be precisely positioned and locked in multiple positions near or far from the center, making operation convenient.

[0033] Furthermore, the side of the locking tooth 221 near the top pressure section 210 is inclined away from the top pressure section 210 in a direction away from the slot. The inclined side of the locking tooth 221 forms a guide slope, which greatly improves the convenience of inserting and positioning the locking section 220, and makes the gradual application of force and pressure during closed reduction of humeral fracture more controllable.

[0034] To further improve the snap-fit ​​positioning effect between the snap-fit ​​segment 220 and the main rod 130, in this embodiment, the two snap-fit ​​segments 220 can elastically deform in a direction that brings them closer together. When the reset module is snapped into the main rod 130, the snap-fit ​​segment 220 can be slightly pressed inward to pass over the main rod 130. After it is in place, the snap-fit ​​teeth 221 engage with the slot 131 by relying on elastic reset. The elastic reset force of the two snap-fit ​​segments 220 moving away from each other can further enhance the cooperation effect between the snap-fit ​​segment 220 and the main rod 130. When disassembling, pressing the two snap-fit ​​segments 220 can make the two snap-fit ​​segments 220 disengage from the slot 131, thereby making it easier and smoother to remove the two snap-fit ​​segments 220 from the opening.

[0035] In some embodiments, both the pressure section 210 and the locking section 220 are made of transparent material; for example, the entire repositioning module can be made of transparent plastic. In clinical surgery, this open design and the transparent repositioning module allow medical personnel and X-ray machines to approach the injured limb unobstructed from multiple angles, enabling intraoperative fluoroscopic monitoring of the repositioning effect. This significantly reduces the obstruction of the field of vision by traditional instruments or human hands, lowering the blindness of intraoperative adjustments and radiation dose.

[0036] In some embodiments, the main rod 130 is detachably connected to the vertical rod 140 and the horizontal rod 120. During maintenance or transportation, the main rod 130, vertical rod 140, and horizontal rod 120 can be disassembled for easier use. Furthermore, some components can be adapted to different patient sizes, improving the applicability and flexibility of the entire assistive device.

[0037] To reduce discomfort caused by the repositioning module compressing the injured limb, in this embodiment, an elastic buffer layer 230 is provided on the side of the pressure section 210 away from the locking section 220. When the repositioning module is used to support and position the injured limb, the elastic buffer layer 230 comes into contact with the injured limb, thus providing stable repositioning support while further improving patient comfort and protecting the periosteum and soft tissues. This better disperses the compressive stress on the cortical bone, helping to avoid secondary injury or pressure sores caused by excessive local pressure.

[0038] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A closed reduction and reduction aid for humeral fractures, characterized in that: include: A fixed body is provided with a reset channel (110) enclosed inside, and at least two sides of the fixed body are respectively provided with openings communicating with the reset channel (110); The reset module can enter the reset channel (110) from any of the openings. The reset module can move and be positioned along the direction close to or away from the central axis of the reset channel (110). There are multiple reset modules.

2. The closed reduction aid for humeral fractures according to claim 1, characterized in that: The fixing body includes side frames and crossbars (120). Two side frames are arranged at intervals along the left and right direction. Multiple crossbars (120) are connected between the top sides of the two side frames and between the bottom sides of the two side frames. The two side frames are respectively enclosed to form the opening. The top sides of the two side frames and the crossbars (120) are enclosed to form an opening. The two side frames and the crossbars (120) located on the upper and lower sides are enclosed to form the reset channel (110).

3. The closed reduction auxiliary tool for humeral fractures according to claim 2, characterized in that: The side frame includes two main rods (130) spaced apart in the vertical direction and a plurality of vertical rods (140) connected between the two main rods (130). The opening is formed between the two main rods (130) and the plurality of vertical rods (140). The horizontal rod (120) located on the upper side is connected to the main rod (130) located on the upper side, and the horizontal rod (120) located on the lower side is connected to the main rod (130) located on the lower side.

4. The closed reduction auxiliary tool for humeral fractures according to claim 3, characterized in that: The reset module includes a top pressing section (210) and a snap-fit ​​section (220) connected to both ends of the top pressing section (210). A slot is formed between the top pressing section (210) and the two snap-fit ​​sections (220). When the two snap-fit ​​sections (220) enter either of the openings, the two snap-fit ​​sections (220) can snap onto the two main rods (130) located at the openings.

5. The closed reduction auxiliary tool for humeral fractures according to claim 4, characterized in that: Each of the two locking sections (220) is provided with a locking tooth (221) on the side away from each other. Multiple locking teeth (221) are provided in the direction away from the top pressing section (210). Multiple main rods (130) are provided with a slot (131) on the side corresponding to the opening. Multiple slots (131) are provided in the direction close to the reset channel (110). Multiple locking teeth (221) can be respectively engaged and connected in multiple slots (131).

6. The closed reduction auxiliary tool for humeral fractures according to claim 5, characterized in that: The side of the tooth (221) near the top pressure section (210) is inclined away from the top pressure section (210) in a direction away from the slot.

7. The closed reduction auxiliary tool for humeral fractures according to claim 4, characterized in that: The two snap-fit ​​segments (220) can elastically deform in the direction of approaching each other.

8. The closed reduction auxiliary tool for humeral fractures according to claim 4, characterized in that: Both the top pressing section (210) and the snap-fit ​​section (220) are made of transparent material.

9. The closed reduction auxiliary tool for humeral fractures according to claim 4, characterized in that: An elastic buffer layer (230) is provided on the side of the top pressing section (210) away from the snap-fit ​​section (220).

10. The closed reduction auxiliary tool for humeral fractures according to claim 3, characterized in that: The main rod (130) is detachably connected to the vertical rod (140) and the horizontal rod (120).

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