Sternum fixing device

Abstract

The invention provides a sternum fixing device. The sternum fixing device comprises a shell; the connecting assembly comprises a first connecting plate and a second connecting plate, the first connecting plate and the second connecting plate are movably arranged on the shell in the transverse direction, the first connecting plate is provided with a first connecting part connected with the sternum, the second connecting plate is provided with a second connecting part connected with the sternum, and the first connecting part and the second connecting part both protrude out of the shell; the connecting assembly has an open state in which the first connecting part and the second connecting part are away from each other and a locked state in which the first connecting part and the second connecting part are close to each other; and the driving piece is movably arranged on the shell, the driving piece is in driving connection with the first connecting plate and the second connecting plate, and the driving piece can drive the first connecting plate and the second connecting plate to move in the opposite directions so that the connecting assembly can move to the locking state from the opening state. Through the technical scheme provided by the invention, the problem of poor operability of connecting the sternum through the titanium cable in the related technology can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a sternum fixation device. Background Art

[0002] The sternum is an important part of the thorax. It is connected to the interlocking bones above, the ribs below, and seven pairs of ribs on the left and right. The sternum is connected to the ribs on the left and right sides by the costal cartilage to form a stable thorax. Therefore, the sternum has the function of maintaining the stability of the thorax. In addition, the sternum, ribs, and thoracic vertebrae together form a bony cavity, which allows important organs and tissues such as the heart, lungs, stomach, and blood vessels to operate smoothly in the cavity to maintain the body's various physiological needs.

[0003] Thoracotomy is a surgical method to expose the organs in the chest cavity. It generally refers to a procedure in which the chest cavity is opened surgically, and the lesion can be directly visualized and operated. It is mainly used to treat serious diseases in the lungs, esophagus, chest wall, mediastinum, heart, and chest blood vessels. Common types of surgery include exploratory thoracotomy, radical resection of esophageal cancer, radical resection of lung cancer, and heart valve replacement. According to the different surgical approaches, it can be divided into median sternal approach, posterolateral chest approach, and anterolateral chest approach. Most patients with abnormal cardiopulmonary function, such as radical resection of lung cancer and heart valve replacement, need to undergo thoracotomy for intervention and resolution, and this type of surgery mainly uses the median sternal approach, and the main method is to use tools to separate the sternum from top to bottom along the midline.

[0004] However, due to the large trauma of thoracotomy, patients need to get enough rest after surgery. For patients who use the median sternotomy approach, the sternum is re-fixed by several titanium cables after surgery. However, the use of titanium cables requires the operator to apply force based on his or her own experience, which makes the operation difficult. Summary of the invention

[0005] The invention provides a sternum fixing device to solve the problem of poor operability of connecting the sternum with a titanium cable in the related art.

[0006] The present invention provides a sternum fixation device, which includes: a shell; a connecting assembly, including a first connecting plate and a second connecting plate, the first connecting plate and the second connecting plate are both movably arranged on the shell in a transverse direction, the first connecting plate has a first connecting portion connected to the sternum, the second connecting plate has a second connecting portion connected to the sternum, the first connecting portion and the second connecting portion both protrude from the shell, and the connecting assembly has an open state in which the first connecting portion and the second connecting portion are away from each other and a locked state in which the first connecting portion and the second connecting portion are close to each other; a driving member, which is movably arranged on the shell, the driving member is driven and connected to the first connecting plate and the second connecting plate respectively, and the driving member can drive the first connecting plate and the second connecting plate to move in opposite directions so that the connecting assembly moves from the open state to the locked state.

[0007] Furthermore, the sternum fixation device also includes a retaining member, and after the connecting assembly moves to the locked state, the retaining member can cooperate with the first connecting plate and / or the second connecting plate to retain the connecting assembly in the locked state.

[0008] Furthermore, the backstop member includes a backstop plate detachably arranged on the first connecting plate and / or the second connecting plate, a backstop tooth is arranged on one of the backstop plate and the driving member, and a backstop groove is arranged on the other of the backstop plate and the driving member, and after the connecting assembly is switched to the locked state, the backstop tooth is inserted in the backstop groove.

[0009] Furthermore, the first connecting plate has an avoidance groove, the backstop plate is located on a side of the first connecting plate away from the driving member, and the backstop plate passes through the avoidance groove to cooperate with the driving member for backstopping.

[0010] Furthermore, the driving member is a driving wheel rotatable around a vertical axis, the first connecting plate and the second connecting plate are respectively located on both sides of the driving wheel, the first connecting plate and the second connecting plate are both provided with driven teeth, the driving wheel has driving teeth, and the driving teeth and the driven teeth are meshed.

[0011] Furthermore, the shell has a accommodating cavity, a first opening and a second opening, the first opening and the second opening are respectively located on both sides of the accommodating cavity and are both connected to the accommodating cavity, the driving wheel is rotatably arranged in the accommodating cavity, the first connecting plate and the second connecting plate are respectively inserted into the accommodating cavity through the first opening and the second opening, and the first connecting part and the second connecting part are located outside the accommodating cavity.

[0012] Further, the first connecting plate includes a plate body and a rack plate connected to each other, the first connecting portion is arranged on the plate body, and the driven tooth is arranged on the rack plate; and / or, the structure of the second connecting plate is the same as that of the first connecting plate.

[0013] Furthermore, the plate body includes a guide plate and a limit plate connected to each other, an angle is formed between the guide plate and the limit plate, the guide plate cooperates with the shell guide, the rack plate and the limit plate are respectively located on both sides of the guide plate, and the first connecting part is a hook-shaped structure formed by the cooperation of the guide plate and the limit plate.

[0014] Furthermore, the sternum fixation device also includes a pre-fixing component connected to the sternum, the shell has a first strip hole and a second strip hole, the first strip hole and the second strip hole are respectively arranged corresponding to the first connecting plate and the second connecting plate, the first strip hole and the second strip hole are both penetrated by the pre-fixing component, and the first strip hole and the second strip hole both extend in the transverse direction.

[0015] Furthermore, a medicine groove is provided on the shell; and / or a porous structure is provided on a side of the shell close to the sternum.

[0016] By applying the technical solution of the present invention, the sternum fixation device includes a shell, a connecting assembly and a driving member. By operating the driving member, the driving member is moved in the opposite direction to the shell, and the first connecting plate and the second connecting plate are driven to move in the lateral direction by the driving member, so that the first connecting plate and the second connecting plate move toward each other and approach each other. Since the first connecting plate is connected to the sternum on one side through the first connecting part, and the second connecting plate is connected to the sternum on the other side through the second connecting part, when the first connecting plate and the second connecting plate approach each other in opposite directions, the separated sternums can be driven to approach each other, thereby bringing the sternums together and connecting. Compared with the connection method using titanium cables, the operation is simple and labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 A schematic structural diagram of a sternum fixation device provided in an embodiment of the present invention is shown;

[0019] Figure 2 An assembly diagram of a connecting component and a driving member of a sternum fixation device provided according to an embodiment of the present invention is shown;

[0020] Figure 3 A schematic structural diagram of a housing of a sternum fixation device provided in an embodiment of the present invention is shown;

[0021] Figure 4 A schematic structural diagram of a driving member of a sternum fixation device provided according to an embodiment of the present invention is shown.

[0022] The above drawings include the following reference numerals:

[0023] 10. Shell; 12. First opening; 13. Second opening; 14. Drug groove; 15. First strip hole;

[0024] 20. Connecting assembly; 21. First connecting plate; 211. Avoidance groove; 212. Rack plate; 213. Guide plate; 214. Limiting plate; 22. Second connecting plate; 23. Driven gear;

[0025] 30. driving member; 31. stop groove; 32. driving tooth;

[0026] 40. Anti-return parts;

[0027] 50. Pre-fixed parts. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] like Figures 1 to 4 As shown, an embodiment of the present invention provides a sternum fixation device, which includes a shell 10, a connecting component 20 and a driving member 30. The connecting component 20 includes a first connecting plate 21 and a second connecting plate 22. The first connecting plate 21 and the second connecting plate 22 are both movably arranged on the shell 10 along the lateral direction. The first connecting plate 21 has a first connecting portion connected to the sternum, and the second connecting plate 22 has a second connecting portion connected to the sternum. The first connecting portion and the second connecting portion both protrude from the shell 10. The connecting component 20 has an open state in which the first connecting portion and the second connecting portion are away from each other and a locked state in which the first connecting portion and the second connecting portion are close to each other; the driving member 30 is movably arranged on the shell 10, and the driving member 30 is driven and connected to the first connecting plate 21 and the second connecting plate 22 respectively. The driving member 30 can drive the first connecting plate 21 and the second connecting plate 22 to move in opposite directions so that the connecting component 20 moves from the open state to the locked state.

[0030] By applying the technical solution of the present invention, the sternum fixing device includes a housing 10, a connecting assembly 20 and a driving member 30. By operating the driving member 30, the driving member 30 is moved in the opposite direction to the housing 10, and the driving member 30 is used to drive the first connecting plate 21 and the second connecting plate 22 to move in the lateral direction, so that the first connecting plate 21 and the second connecting plate 22 move toward each other and approach each other. Since the first connecting plate 21 is connected to the sternum on one side through the first connecting part, and the second connecting plate 22 is connected to the sternum on the other side through the second connecting part, when the first connecting plate 21 and the second connecting plate 22 approach each other in opposite directions, the separated sternums can be driven to approach each other, and then the sternums are gathered and connected. Compared with the connection method using titanium cables, the operation is simple and labor-saving.

[0031] The driving member 30 can be movably arranged on the housing 10, that is, the driving member 30 can move in a straight line on the housing 10, for example, the first connecting plate 21 and the second connecting plate 22 are respectively arranged on both sides of the conveyor belt, and the first connecting plate 21 and the second connecting plate 22 are driven to move in opposite directions through the linear movement of the two sides of the conveyor belt. Alternatively, the driving member 30 can rotate around its own axis, and the first connecting plate 21 and the second connecting plate 22 are respectively arranged on both sides of the driving member 30.

[0032] In this embodiment, the housing 10 can form a base so that the first connecting plate 21 and the second connecting plate 22 can move on the housing 10, so that the movement process of the first connecting plate 21 and the second connecting plate 22 is more stable.

[0033] like Figure 1 and Figure 2 As shown, the sternum fixing device further includes a stopper 40. After the connecting assembly 20 moves to the locked state, the stopper 40 can cooperate with the first connecting plate 21 and / or the second connecting plate 22 to keep the connecting assembly 20 in the locked state. The stopper 40 can form a stopper effect, so that the connecting assembly 20 is maintained in the locked state, so that the sternum can be locked after connection.

[0034] In other embodiments, after the connection assembly 20 is in the locked state, the housing 10 and the sternum can be connected by a connection member, so that the sternum is locked and cannot be separated. Alternatively, the stop member 40 is matched with the driving member 30 to make the driving member 30 stationary relative to the housing 10, thereby keeping the connection assembly 20 in the locked state.

[0035] The retaining member 40 may be respectively matched with one of the first connecting plate 21 and the second connecting plate 22 , or may be matched with both of them, as long as the connecting assembly 20 can be kept in a locked state.

[0036] like Figure 2 As shown, the backstop 40 includes a backstop plate detachably arranged on the first connecting plate 21 and / or the second connecting plate 22, a backstop tooth is arranged on one of the backstop plate and the driving member 30, and a backstop groove 31 is arranged on the other of the backstop plate and the driving member 30. After the connecting assembly 20 is switched to the locked state, the backstop tooth is inserted into the backstop groove 31. The backstop method using the backstop tooth and the backstop groove 31 to match has the advantages of simple structure and easy setting.

[0037] In this embodiment, the first connecting plate 21 and the second connecting plate 22 are both provided with a corresponding backstop plate. The backstop plate is connected to the driving member 30 by screw connection. After the connecting assembly 20 is in a locked state, the backstop plate is connected to the first connecting plate 21, and the other backstop plate is connected to the second connecting plate 22 to achieve the backstop function.

[0038] like Figure 2 As shown, the first connecting plate 21 has an avoidance groove 211, and the backstop plate is located on the side of the first connecting plate 21 away from the driving member 30, and the backstop plate passes through the avoidance groove 211 to prevent the backstop plate from the driving member 30. With the above structure, by making the backstop plate pass through the avoidance groove 211, compared with the backstop plate being arranged outside the avoidance groove 211, the thickness of the sternum fixing device can be reduced, which facilitates its miniaturization.

[0039] The second connecting plate 22 is also provided with an avoidance groove.

[0040] like Figure 2 As shown, the driving member 30 is a driving wheel rotatable around a vertical axis, the first connecting plate 21 and the second connecting plate 22 are respectively located on both sides of the driving wheel, the first connecting plate 21 and the second connecting plate 22 are both provided with driven teeth 23, the driving wheel has driving teeth 32, and the driving teeth 32 are meshed with the driven teeth 23. With the above structure, by rotating the driving wheel, the first connecting plate 21 and the second connecting plate 22 can be driven to move through the transmission of the gear and the rack, which has the advantages of simple structure and easy operation.

[0041] In this embodiment, a driving groove cooperating with the wrench is provided on the driving wheel, and the wrench can drive the driving wheel to rotate through the driving groove.

[0042] It should be noted that, in the vertical direction, both sides of the driving tooth 32 are provided with a back-stop groove 31 .

[0043] like Figure 3 As shown, the housing 10 has a receiving cavity, a first opening 12 and a second opening 13, the first opening 12 and the second opening 13 are respectively located on both sides of the receiving cavity and are both connected to the receiving cavity, the driving wheel is rotatably arranged in the receiving cavity, the first connecting plate 21 and the second connecting plate 22 are respectively inserted into the receiving cavity through the first opening 12 and the second opening 13, and the first connecting portion and the second connecting portion are located outside the receiving cavity. The housing 10 adopting the above structure can limit the first connecting plate 21 and the second connecting plate 22 by arranging the first connecting plate 21 and the second connecting plate 22 in the receiving cavity, so that the meshing transmission between the first connecting plate 21 and the second connecting plate 22 and the driving wheel is more stable and separation is avoided.

[0044] In this embodiment, a through hole communicating with the accommodating cavity is provided on the upper surface of the housing 10, and a driving groove of the driving wheel passes through the through hole so as to be able to cooperate with a wrench.

[0045] Specifically, a side opening communicating with the accommodating cavity is provided on the side of the housing 10 , and the retaining plate can be connected to the first connecting plate 21 and the second connecting plate 22 through the side opening.

[0046] like Figure 2 As shown, the first connecting plate 21 includes a plate body and a rack plate 212 connected to each other, the first connecting portion is arranged on the plate body, and the driven tooth 23 is arranged on the rack plate 212. The first connecting plate 21 with the above structure has the advantages of simple structure and easy processing.

[0047] In this embodiment, the structure of the second connecting plate 22 is the same as that of the first connecting plate 21. The two connecting plates are symmetrically arranged relative to the center of the driving wheel.

[0048] like Figure 2 As shown, the plate body includes a guide plate 213 and a limit plate 214 connected to each other, an angle is formed between the guide plate 213 and the limit plate 214, the guide plate 213 is guided and matched with the housing 10, the rack plate 212 and the limit plate 214 are respectively located on both sides of the guide plate 213, and the first connecting portion is a hook-shaped structure formed by the guide plate 213 and the limit plate 214. The plate body adopting the above structure has the advantages of simple structure and easy processing.

[0049] The inner side of the limiting plate 214 is provided with an arc-shaped groove that matches the sternum.

[0050] In the related art, due to the small diameter of the titanium cable itself, there is a risk of bone damage when the binding force is large. In addition, the titanium cable may break when the local tension is too large, thereby losing the fixation effect. The hook-shaped structure formed by the guide plate 213 and the limit plate 214 of this embodiment can firmly lock the sternum at the costal cartilage gap on both sides of the sternum, and has a certain width, which is basically equivalent to the width of the costal gap, which can further limit the displacement of the sternum after surgery and maintain the correct position of the sternum.

[0051] like Figure 1 As shown, the sternum fixing device also includes a pre-fixing member 50 connected to the sternum, the housing 10 has a first strip hole 15 and a second strip hole, the first strip hole 15 and the second strip hole are respectively arranged corresponding to the first connecting plate 21 and the second connecting plate 22, the first strip hole 15 and the second strip hole are both penetrated with the pre-fixing member 50, and the first strip hole 15 and the second strip hole are both extended in the transverse direction. The housing 10 can be pre-fixed on the sternum by using the pre-fixing member 50, so as to facilitate the connection between the first connecting plate 21 and the second connecting plate 22 and the sternum, and make the operation of the operator more convenient.

[0052] In this embodiment, the pre-fixing member 50 is a screw. Since the separated sternums approach each other when the connecting assembly 20 is switched to the locked state, the pre-fixing member 50 will move with the sternum, and the first strip hole 15 and the second strip hole can be used to avoid the pre-fixing member 50 to avoid interference with the pre-fixing member 50.

[0053] like Figure 1 As shown, the housing 10 is provided with a drug groove 14, which can be used to store antibacterial and anti-infective drugs such as vancomycin, thereby reducing the path of wound infection and helping the wound to heal faster and more completely.

[0054] In this embodiment, the medicine grooves 14 are disposed at the four corners of the housing 10 .

[0055] The housing 10 is provided with a porous structure on one side close to the sternum. When the cortical bone on the outer surface of the sternum is lost, bone cells can be induced to grow in, which helps to accelerate the recovery of the sternum.

[0056] Specifically, the porous structure has a depth of 1 mm.

[0057] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0058] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0059] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0060] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0061] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0062] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A sternum fixation device, characterized in that: The sternum fixation device comprises: Housing (10); A connection assembly (20), comprising a first connection plate (21) and a second connection plate (22), wherein the first connection plate (21) and the second connection plate (22) are both movably arranged on the housing (10) in a transverse direction, the first connection plate (21) having a first connection portion connected to the sternum, the second connection plate (22) having a second connection portion connected to the sternum, the first connection portion and the second connection portion both protrude from the housing (10), and the connection assembly (20) has an open state in which the first connection portion and the second connection portion are separated from each other, and a locked state in which the first connection portion and the second connection portion are close to each other; A driving member (30) is movably disposed on the housing (10), the driving member (30) being drivingly connected to the first connecting plate (21) and the second connecting plate (22) respectively, the driving member (30) being capable of driving the first connecting plate (21) and the second connecting plate (22) to move in opposite directions, so that the connecting assembly (20) moves from the open state to the locked state.

2. The sternum fixation device according to claim 1, characterized in that: The sternum fixation device further comprises a retaining member (40), and after the connection assembly (20) moves to the locked state, the retaining member (40) can cooperate with the first connection plate (21) and / or the second connection plate (22) to retain the connection assembly (20) in the locked state.

3. The sternum fixation device according to claim 2, characterized in that: The backstop member (40) comprises a backstop plate detachably arranged on the first connecting plate (21) and / or the second connecting plate (22), a backstop tooth being arranged on one of the backstop plate and the driving member (30), and a backstop groove (31) being arranged on the other of the backstop plate and the driving member (30), and after the connecting assembly (20) is switched to the locked state, the backstop tooth is inserted into the backstop groove (31).

4. The sternum fixation device according to claim 3, characterized in that: The first connecting plate (21) has an avoidance groove (211), the stop plate is located on a side of the first connecting plate (21) away from the driving member (30), and the stop plate passes through the avoidance groove (211) and cooperates with the driving member (30) to stop retreat.

5. The sternum fixation device according to claim 1, characterized in that: The driving member (30) is a driving wheel rotatable about a vertical axis, the first connecting plate (21) and the second connecting plate (22) are respectively located on both sides of the driving wheel, the first connecting plate (21) and the second connecting plate (22) are both provided with driven teeth (23), the driving wheel has driving teeth (32), and the driving teeth (32) and the driven teeth (23) are meshed with each other.

6. The sternum fixation device according to claim 5, characterized in that: The housing (10) comprises a accommodating cavity, a first opening (12) and a second opening (13); the first opening (12) and the second opening (13) are respectively located on both sides of the accommodating cavity and are both in communication with the accommodating cavity; the driving wheel is rotatably arranged in the accommodating cavity; the first connecting plate (21) and the second connecting plate (22) are respectively inserted into the accommodating cavity through the first opening (12) and the second opening (13); and the first connecting portion and the second connecting portion are located outside the accommodating cavity.

7. The sternum fixation device according to claim 5, characterized in that: The first connecting plate (21) comprises a plate body and a rack plate (212) connected to each other, the first connecting portion is arranged on the plate body, and the driven tooth (23) is arranged on the rack plate (212); and / or, The structure of the second connecting plate (22) is the same as that of the first connecting plate (21).

8. The sternum fixation device according to claim 7, characterized in that: The plate body comprises a guide plate (213) and a limit plate (214) connected to each other, an angle being formed between the guide plate (213) and the limit plate (214), the guide plate (213) and the limit plate (214) being guided and matched with the housing (10), the rack plate (212) and the limit plate (214) being respectively located on two sides of the guide plate (213), and the first connecting portion being a hook-shaped structure formed by the cooperation of the guide plate (213) and the limit plate (214).

9. The sternum fixation device according to claim 1, characterized in that: The sternum fixing device further comprises a pre-fixing member (50) connected to the sternum, the shell (10) having a first strip hole (15) and a second strip hole, the first strip hole (15) and the second strip hole being arranged corresponding to the first connecting plate (21) and the second connecting plate (22) respectively, the pre-fixing member (50) being passed through the first strip hole (15) and the second strip hole, and the first strip hole (15) and the second strip hole both extending along the transverse direction.

10. The sternum fixation device according to claim 1, characterized in that: The housing (10) is provided with a medicine groove (14); and / or, A porous structure is provided on a side of the shell (10) close to the sternum.

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