Bone needle assembly and osteotomy drilling equipment

Abstract

The utility model relates to a bone needle assembly and osteotomy drilling equipment. The bone needle assembly comprises a bone needle piece and a quick connecting piece. The spicule piece comprises a spicule part and a connecting part. The bone needle part and the connecting part are connected and located on the same axis. And the bone needle part is used for drilling operation. The shape of the cross section of the connecting part comprises a rotational symmetry graph. The width of one end, away from the spicule part, of the connecting part is smaller than that of one end, close to the spicule part, of the connecting part. The quick connecting piece comprises a quick connecting end and a switching end, and the quick connecting end and the switching end are located at the two opposite ends of the quick connecting piece. The switching end is used for being connected with a drill gun. The quick connecting piece comprises a quick connecting hole, and the quick connecting hole extends into the quick connecting piece from the quick connecting end. The shape of the cross section of the quick connecting hole corresponds to that of the cross section of the connecting part. And the clamping part is matched with the connecting part. The quick connecting piece further comprises a fixing part, and the fixing part is used for fixing the bone needle piece after the connecting part is matched with the quick connecting hole. According to the embodiment, the bone needle part and the quick connecting part can be quickly mounted and fixed during blind mounting.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to a bone needle assembly and osteotomy drilling device. Background Technology

[0002] In related technologies, with the increasing aging of the population, diseases such as osteoarthritis and rheumatoid arthritis can lead to cartilage damage or abnormal wear and tear in the knee joint, causing ligament imbalance and limited flexion and extension of the lower limbs. Joint surgery is required to restore lower limb function. Therefore, hospitals are performing an increasing number of joint surgeries each year.

[0003] In joint surgery, osteotomy is necessary. Before osteotomy, holes need to be drilled in the bone, which requires bone screws and a drill. However, because bone screws need to be connected to the drill via an installation component, surgeons often install them blindly during surgery. Therefore, improving the ease of operation for surgeons during blind installation has become a pressing issue. Utility Model Content

[0004] According to a first aspect of the embodiments of this application, a bone pin assembly is provided, comprising: a bone pin component and a quick-connect component;

[0005] The bone pin component includes a bone pin portion and a connecting portion; the bone pin portion is connected to the connecting portion and is located on the same axis; the bone pin portion is used for drilling operations; the cross-sectional shape of the connecting portion includes a rotationally symmetric figure; the width of the end of the connecting portion away from the bone pin portion is smaller than the width of the end of the connecting portion close to the bone pin portion.

[0006] The quick-connect fitting includes a quick-connect end and an adapter end, which are located at opposite ends of the quick-connect fitting. The adapter end is used to connect to a drill gun. The quick-connect fitting includes a quick-connect hole that extends from the quick-connect end into the quick-connect fitting. The cross-sectional shape of the quick-connect hole corresponds to the cross-sectional shape of the connecting part and is used to mate with the connecting part.

[0007] The quick-connect component also includes a fixing part, which is used to fix the bone needle component after the connecting part mates with the quick-connect hole.

[0008] As can be seen from the above embodiments, when the doctor blindly assembles the bone pin and quick-connect fitting, since both the cross-sectional shape of the connecting part and the cross-sectional shape of the quick-connect hole include rotationally symmetrical figures, even if the connecting part and the quick-connect hole are not initially aligned in their cross-sectional positions during blind assembly, a slight rotation of the connecting part is sufficient to align it with the cross-sectional shape of the quick-connect hole. Furthermore, by making the width smaller than the length, the connecting part can more easily mate with the quick-connect hole. That is, the end of the connecting part away from the bone pin, being smaller in size, more easily mates with the portion of the quick-connect hole closer to the quick-connect end, acting as a guide to allow the wider connecting part to subsequently extend into the quick-connect hole. Simultaneously, once the connecting part mates with the quick-connect hole, the fixing part secures the bone pin, achieving a stable connection between the bone pin and the quick-connect fitting.

[0009] Therefore, by setting the cross-sections of both the connecting part and the quick-connect hole to rotationally symmetric shapes, with the width being smaller than the width, and by setting a fixing part inside the quick-connect piece, the rapid installation and fixing of the bone pin and the quick-connect piece under blind installation operation can be effectively achieved.

[0010] In some embodiments, the fixing part includes a clamping piece; one end of the clamping piece is connected to the quick-connect member, and the other end extends in a direction toward the quick-connect end and in a direction toward the central axis of the quick-connect hole.

[0011] The width of the connecting portion at the end away from the bone needle portion is less than the width of the clamping piece after it limits the quick-connect hole, and the width of the connecting portion at the end near the bone needle portion is greater than the width of the clamping piece after it limits the quick-connect hole.

[0012] In some embodiments, the fixing part includes a magnetic attraction structure; the magnetic attraction structure is located at the end of the quick-connect hole away from the quick-connect end;

[0013] The material of at least a portion of the structure of the bone pin component, starting from the end of the connector away from the bone pin portion, includes a magnetic material.

[0014] In some embodiments, the fixing part includes a clamping piece and a magnetic structure; one end of the clamping piece is connected to the quick connector, and the other end extends along the direction toward the quick connector end and along the direction toward the central axis of the quick connector hole; the magnetic structure is located at the end of the quick connector hole away from the quick connector end;

[0015] The width of the end of the connecting portion away from the bone pin portion is smaller than the width of the end of the connecting portion near the bone pin portion; the width of the end of the connecting portion away from the bone pin portion is smaller than the width of the clamping piece after limiting the quick-connect hole, and the width of the end of the connecting portion near the bone pin portion is larger than the width of the clamping piece after limiting the quick-connect hole; at least a portion of the structure of the bone pin component starting from the end of the connecting portion away from the bone pin portion is made of a magnetic material.

[0016] In some embodiments, the clamping piece is formed by cutting the quick-connect member; at least a portion of the clamping piece is provided corresponding to the quick-connect hole.

[0017] In some embodiments, the clamping piece has a buckle extending toward the central axis of the quick-connect hole at one end near the quick-connect end;

[0018] The connecting part is provided with a snap-fit ​​groove around the connecting part, and the snap-fit ​​groove is used to cooperate with the snap-fit.

[0019] In some embodiments, the cross-sectional width of the quick-connect hole near the quick-connect end is greater than the cross-sectional width of the quick-connect hole away from the quick-connect end; and the cross-sectional width of the quick-connect hole corresponds to the cross-sectional width of the connecting portion.

[0020] In some embodiments, a chamfered structure is provided at the junction of the quick-connect hole and the quick-connect end.

[0021] In some embodiments, the connecting portion includes a tapered guide and a stabilizing connecting portion; the tapered guide is located at the end of the stabilizing connecting portion away from the bone pin portion and is connected to the stabilizing connecting portion; the width of the stabilizing connecting portion remains consistent; the width of the end of the tapered guide away from the bone pin portion is smaller than the width of the end of the tapered guide close to the bone pin portion; and the width of the end of the tapered guide close to the bone pin portion is consistent with the width of the stabilizing connecting portion; the length of the stabilizing connecting portion is greater than the length of the tapered guide.

[0022] According to a second aspect of the embodiments of this application, an osteotomy drilling device is provided, including any of the above-described bone needle components.

[0023] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0024] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0025] Figure 1This is a schematic diagram of a bone needle assembly according to an embodiment of this application.

[0026] Figure 2 This is a schematic diagram of the structure of a bone needle according to an embodiment of this application.

[0027] Figure 3 This is a structural schematic diagram of a quick-connect fitting according to an embodiment of this application.

[0028] Figure 4 This is a cross-sectional view of a bone needle assembly according to an embodiment of this application.

[0029] Figure 5 As shown in the embodiments of this application Figure 4 A magnified view of a portion of region Q1 in the middle area.

[0030] Figure 6 This is a cross-sectional view of another bone needle assembly shown according to an embodiment of this application. Detailed Implementation

[0031] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0032] Before osteotomy in joint surgery, holes need to be drilled in the bone using bone screws and a drill. To facilitate screw replacement, the screws need to be connected to the drill via an installation assembly. Current solutions include a D-shaped connector that uses a bone pin for relatively quick installation. However, during surgery, surgeons need to focus on the surgical site and therefore typically use a blind installation method to connect the assembly to the bone screw. The D-shaped connector requires the bone pin to be rotated to a specific position to align with the installation assembly, which undoubtedly increases the difficulty of installation in a blind setup. Therefore, improving the ease of operation for surgeons during blind installation is a pressing issue.

[0033] This application provides a bone needle assembly 10. Figure 1 This is a schematic diagram of the bone pin assembly 10. (As shown...) Figure 1 The schematic diagram shown illustrates that the bone pin assembly 10 includes: a bone pin component 11 and a quick-connect component 12. Wherein, Figure 2 The diagram shown is a structural schematic of a bone needle component 11. Figure 3The diagram shown is a structural schematic of a quick-connect fitting 12. The structures of the bone pin 11 and the quick-connect fitting 12 can be referenced. Figure 2 and Figure 3 As shown.

[0034] like Figure 2 As shown, the bone needle component 11 includes a bone needle portion 111 and a connecting portion 112. The bone needle portion 111 and the connecting portion 112 are connected and located on the same axis. The bone needle portion 111 is used for drilling operations. The cross-sectional shape of the connecting portion 112 includes a rotationally symmetric figure. The width of the end of the connecting portion 112 away from the bone needle portion 111 is smaller than the width of the end of the connecting portion 112 near the bone needle portion 111.

[0035] Specifically, Figure 4 The diagram shown is a cross-sectional view of a bone needle assembly 10. Figure 5 What is shown is Figure 4 A magnified view of a portion of region Q1 in the middle area. Figure 5 The diagram shows the width D1 of the end of the connecting portion 112 away from the bone needle portion 111, the width D2 of the end of the connecting portion 112 near the bone needle portion 111, and the width D3 of the clamping piece 1241 after limiting the quick-connect hole 123. The width of the connecting portion 112 away from the bone needle portion 111 is smaller than the width of the connecting portion 112 near the bone needle portion 111; that is, width D1 is smaller than width D2.

[0036] Furthermore, the width of the connecting portion 112 described here refers to the width of the connecting portion 112 on any cross-section extending along its central axis Z1. Figure 5 The cross-section shown in the diagram, passing through the central axis Z1 of the connecting portion 112, is merely exemplary. In practice, in other embodiments, the cross-section may also be based on extending along the central axis Z1, and... Figure 5 The cross-section shown is a cross-section with an included angle.

[0037] It should be noted that the bone needle component 11 includes the connected bone needle portion 111 and the connecting portion 112 only for the purpose of illustrating the structure of the bone needle component 11. In fact, the bone needle portion 111 and the connecting portion 112 included in the bone needle component 11 can be integrally formed.

[0038] The quick-connector 12 includes a quick-connect end 121 and an adapter end 122, located at opposite ends of the quick-connector 12. The adapter end 122 is used to connect to a drill gun (not shown). By connecting to the drill gun via the adapter end 122, the bone needle component 11 is connected to the drill gun via the quick-connector 12. This allows the drill gun to drive the bone needle component 11 via the quick-connector 12, and consequently, the bone needle component 11 driven by the drill gun performs a drilling operation on the bone. The quick-connector 12 includes a quick-connect hole 123, which extends from the quick-connect end 121 into the quick-connector 12. The cross-sectional shape of the quick-connect hole 123 corresponds to the cross-sectional shape of the connecting portion 112 and is used to mate with the connecting portion 112.

[0039] The cross-sectional shape of the quick-connect hole 123 corresponds to the cross-sectional shape of the connecting part 112, that is, the cross-sectional shape of the quick-connect hole 123 also includes a rotationally symmetric shape corresponding to the cross-sectional shape of the connecting part 112.

[0040] Specifically, Figure 2 The connecting portion 112 of the bone needle component 11 shown has a quadrilateral cross-sectional shape, and Figure 3 The quadrilateral shape of the quick-connect hole 123 shown, corresponding to the cross-sectional shape of the connecting portion 112, is only one feasible embodiment. That is, the cross-sectional shapes of the connecting portion 112 and the quick-connect hole 123 are both rotationally symmetric and axially symmetric. However, it is conceivable that the fact that the cross-sectional shapes of the connecting portion 112 and the quick-connect hole 123 are both rotationally symmetric and axially symmetric is only one feasible embodiment, and other embodiments are not limited to this.

[0041] The quick-connector 12 also includes a fixing part 124, which is used to fix the bone pin 11 after the connecting part 112 is engaged with the quick-connect hole 123.

[0042] When the doctor blindly assembles the bone pin 11 and quick-connect piece 12, since both the cross-sectional shape of the connecting part 112 and the cross-sectional shape of the quick-connect hole 123 include rotationally symmetric figures, even if the connecting part 112 and the quick-connect hole 123 are not in corresponding cross-sectional positions at the beginning of the blind assembly, only a small rotation of the connecting part 112 is needed to rotate it to a position corresponding to the cross-section of the quick-connect hole 123. Furthermore, by making the width D1 smaller than the width D2, the connecting part 112 can more easily mate with the quick-connect hole 123. That is, the end of the connecting part 112 away from the bone pin part 111, due to its smaller size, is more likely to mate with the part of the quick-connect hole 123 near the quick-connect end 121, serving as a guide and facilitating the subsequent insertion of the wider connecting part 112 into the quick-connect hole 123. At the same time, when the connecting part 112 engages with the quick-connect hole 123, the fixing part 124 will fix the bone pin part, thereby achieving a stable connection between the bone pin part 11 and the quick-connect part 12.

[0043] Therefore, by setting the cross-sections of both the connecting part 112 and the quick-connect hole 123 to be rotationally symmetric, with width D1 being smaller than width D2, and by providing a fixing part 124 inside the quick-connect part 12, the bone needle part 11 and the quick-connect part 12 can be effectively installed and fixed quickly under blind installation operation.

[0044] In some embodiments, as Figure 3 and Figure 4 As shown, the fixing part 124 includes a clamping piece 1241. One end of the clamping piece 1241 is connected to the quick connector 12, and the other end extends along the direction toward the quick connector end 121 and along the central axis toward the quick connector hole 123.

[0045] The width of the end of the connecting portion 112 away from the bone needle portion 111 is less than the width of the clamping piece 1241 after it limits the quick-connect hole 123, and the width of the end of the connecting portion 112 near the bone needle portion 111 is greater than the width of the clamping piece 1241 after it limits the quick-connect hole 123.

[0046] Specifically, the width of the connecting portion 112 away from the bone needle portion 111 is less than the width of the clamping piece 1241 after it limits the quick-connect hole 123, and the width of the connecting portion 112 near the bone needle portion 111 is greater than the width of the clamping piece 1241 after it limits the quick-connect hole 123. That is, the width D1 is less than the width D3, and the width D2 is greater than the width D3.

[0047] By extending the clamping piece 1241 along the direction towards the quick-connect end 121 and along the central axis towards the quick-connect hole 123, after the connecting part 112 is engaged with the quick-connect hole 123, pressure is generated on the connecting part 112 by the clamping piece 1241 extending in the aforementioned direction, thereby generating a large frictional force between the connecting part 112 and the clamping piece 1241, and between the connecting part 112 and the inner wall of the quick-connect hole 123. The generated frictional force is used to fix the connecting part 112, and thus fix the bone pin 11.

[0048] When the doctor performs the blind assembly of the bone pin 11 and the quick connector 12, the end of the connecting part 112 away from the bone pin 111 is the first to contact the quick connector end 121 of the quick connector 12. Therefore, by making the width of the end of the connecting part 112 away from the bone pin 111 smaller than the width of the clamping piece 1241 after limiting the quick connector hole 123, and the width of the end of the connecting part 112 near the bone pin 111 larger than the width of the clamping piece 1241 after limiting the quick connector hole 123, the connecting part 112 can more easily mate with the quick connector hole 123 limited by the clamping piece 1241. By gradually increasing the width from width D1 to width D2, the clamping piece 1241 can clamp the wider connecting part 112. Thus, while the clamping piece 1241 can clamp the connecting part 112 in a limited manner, the difficulty of mates the connecting part 112 with the quick-connect hole 123 under blind assembly operation is reduced. In this way, the efficiency of quick installation and fixation between the bone pin 11 and the quick-connect 12 under blind assembly operation can be further improved.

[0049] In some embodiments, Figure 6 The diagram shown is a cross-sectional view of another bone needle assembly 10. (See diagram for reference.) Figure 6 As shown, the fixing part 124 includes a magnetic suction structure 1242. The magnetic suction structure 1242 is located at the end of the quick-connect hole 123 away from the quick-connect end 121.

[0050] At least a portion of the structure of the bone pin 11, starting from the end of the connecting portion 112 away from the bone pin portion 111, is made of a magnetic material. The bone pin 11 may have all of its structure made of a magnetic material, or it may have only a portion of its structure made of a magnetic material, with the portion containing the magnetic material extending from the end of the connecting portion 112 away from the bone pin portion 111 toward the bone pin portion 111.

[0051] When the connecting part 112 mates with the quick-connect hole 123, the magnetic attraction structure 1242 located away from the quick-connect end of the quick-connect hole 123 will generate a magnetic attraction effect on the bone needle part 11, which is made of at least part of the material including the magnetic attraction material. In this way, the fixing part 124 can fix the bone needle part 11 that mates with the quick-connect part 12, thereby further improving the efficiency of quick installation and fixation between the bone needle part 11 and the quick-connect part 12 under blind installation operation.

[0052] In some embodiments, as Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the fixing part 124 includes a clamping piece 1241 and a magnetic attraction structure 1242. One end of the clamping piece 1241 is connected to the quick connector 12, and the other end extends along the direction toward the quick connector end 121 and along the central axis toward the quick connector hole 123. The magnetic attraction structure 1242 is located at the end of the quick connector hole 123 away from the quick connector end 121.

[0053] The width of the end of the connecting portion 112 away from the bone pin portion 111 is smaller than the width of the end of the connecting portion 112 near the bone pin portion 111. The width of the end of the connecting portion 112 away from the bone pin portion 111 is smaller than the width of the clamping piece 1241 after it is positioned relative to the quick-connect hole 123, and the width of the end of the connecting portion 112 near the bone pin portion 111 is larger than the width of the clamping piece 1241 after it is positioned relative to the quick-connect hole 123. At least a portion of the structure of the bone pin member 11, starting from the end of the connecting portion 112 away from the bone pin portion 111, is made of a magnetic material.

[0054] By combining the aforementioned two structures of the fixing part 124, that is, fixing the connecting part 112 by magnetic attraction and friction, and by having the clamping piece 1241 extend along the direction of the central axis Z1 towards the quick-connect end 121 and the quick-connect hole 123, pressure can be generated on the connecting part 112 by the clamping piece 1241 extending in the aforementioned direction after the connecting part 112 is engaged with the quick-connect hole 123. This generates greater friction between the connecting part 112 and the clamping piece 1241, and between the connecting part 112 and the inner wall of the quick-connect hole 123. Furthermore, by gradually increasing the width from width D1 to width D2, the clamping piece 1241 can clamp the wider part of the connecting part 112. At the same time, combined with the attraction of the magnetic attraction structure 1242, the fixation of the bone pin 11 can be further achieved. Thus, the efficiency of rapid installation and fixation of the bone pin 11 and the quick-connect part 12 under blind installation operation can be further improved.

[0055] In some embodiments, as Figure 3 , Figure 4 and Figure 5 As shown, the clamping piece 1241 is formed by cutting the quick-connect member 12. At least a portion of the clamping piece 1241 is provided corresponding to the quick-connect hole 123.

[0056] Specifically, refer to Figure 5 The enlarged cross-sectional view of the bone pin assembly 10 shown in the figure shows that at least a portion of the clamping piece 1241 is provided corresponding to the quick-connect hole 123. That is, in the cross-section of the quick-connect member 12, the clamping piece 1241 may partially extend to correspond to the quick-connect hole 123, i.e., as shown in the figure. Figure 5 The portion of the clamping piece 1241W shown is located outside the corresponding area around the quick-connect hole 123, while the portion of the clamping piece 1241N is located within the corresponding area around the quick-connect hole 123.

[0057] By directly cutting the quick-connect piece 12 to form the clamping piece 1241, the production difficulty of the quick-connect piece can be reduced, thereby reducing the manufacturing cost of the quick-connect piece 12 by simplifying the manufacturing process of the quick-connect piece 12.

[0058] In some embodiments, the clamping piece 1241 has a buckle extending toward the central axis of the quick-connect hole 123 at one end near the quick-connect end 121.

[0059] The connecting part 112 is provided with a snap-fit ​​groove around the connecting part 112, which is used to cooperate with the snap-fit.

[0060] By engaging the buckle on the clamping piece 1241 with the buckle groove on the connecting part 112, the clamping piece 1241 can not only apply pressure to the connecting part 112 to generate greater friction, but also directly apply pressure along the extending direction of the connecting part 112 through the engagement of the buckle and the buckle groove. Thus, the clamping piece 1241 can simultaneously apply friction and pressure along the extending direction of the connecting part 112 through the arrangement of the clamping piece 1241 and the buckle. This can further improve the stability of the engagement between the connecting part 112 and the quick-connect hole 123, and correspondingly improve the stability of the engagement between the bone pin 11 and the quick-connect part 12, thereby further improving the efficiency of quick installation and fixation of the bone pin 11 and the quick-connect part 12 under blind installation operation.

[0061] In some embodiments, as Figure 4 , Figure 5 and Figure 6 As shown, the cross-sectional width of the quick-connect hole 123 near the quick-connect end 121 is greater than the cross-sectional width of the quick-connect hole 123 away from the quick-connect end 121. Furthermore, the cross-sectional width of the quick-connect hole 123 corresponds to the cross-sectional width of the connecting portion 112.

[0062] This design facilitates the mating of the connecting part 112 with the quick-connect hole 123 while increasing the contact area between the inner wall of the quick-connect hole 123 and the connecting part 112. This not only facilitates the mating of the connecting part 112 with the quick-connect hole 123 but also further enhances the stability of the mating between the connecting part 112 and the quick-connect hole 123. Consequently, it further improves the efficiency of rapid installation and fixation of the bone pin 11 and the quick-connect part 12 under blind installation operation.

[0063] In some embodiments, a chamfered structure is provided at the junction of the quick-connect hole 123 and the quick-connect end 121.

[0064] By setting a chamfer structure at the junction of quick-connect hole 123 and quick-connect end 121, the connection part 112 and quick-connect hole 123 can be more easily matched, thereby further improving the efficiency of quick installation and fixation between bone pin part 11 and quick-connect part 12 under blind installation operation.

[0065] In some embodiments, as Figure 2 As shown, and refer to Figure 1 , Figure 4 and Figure 6 As shown, the connecting portion 112 includes a tapered guide 1121 and a stabilizing connecting portion 1122. The tapered guide 1121 is located at the end of the stabilizing connecting portion 1122 away from the bone pin portion 111 and is connected to the stabilizing connecting portion 1122. The width of the stabilizing connecting portion 1122 is consistent. The width of the end of the tapered guide 1121 away from the bone pin portion 111 is smaller than the width of the end of the tapered guide 1121 near the bone pin portion 111. The width of the end of the tapered guide 1121 near the bone pin portion 111 is consistent with the width of the stabilizing connecting portion 1122. The length of the stabilizing connecting portion 1122 is greater than the length of the tapered guide 1121.

[0066] in, Figure 2 The length L2 of the stabilizing connection 1122 and the length L1 of the tapered guide 1121 are shown. The length of the stabilizing connection 1122 is greater than the length of the tapered guide 1121, that is, the length L2 is greater than the length L1.

[0067] By providing the tapered guide 1121 and the stabilizing connection portion 1122, a larger stable contact area between the connecting portion 112 and the quick-connect hole 123 can be achieved while facilitating the fit between the connecting portion 112 and the quick-connect hole 123. Furthermore, since the widths of the stabilizing connection portion 1122 and its corresponding quick-connect hole 123 are consistent, the manufacturing complexity of the connecting portion 112 and the quick-connect hole 123 can be reduced.

[0068] Therefore, by setting the tapered guide 1121 and the stable connection part 1122, the connection part 112 and the quick-connect hole 123 can be stably connected, while reducing the process difficulty of the connection part 112 and the quick-connect hole 123. Thus, the manufacturing cost of the connection part 112 and the quick-connect hole 123 can be reduced while achieving a stable connection.

[0069] This application also provides an osteotomy drilling device, including any of the above-described bone needle components 10.

[0070] The above embodiments of this application can complement each other without causing conflict.

[0071] It should be noted that the dimensions of layers and regions may be exaggerated in the accompanying drawings for clarity. Furthermore, it is understood that when an element or layer is referred to as being "on" another element or layer, it can be directly on the other element, or there may be intermediate layers. Additionally, it is understood that when an element or layer is referred to as being "below" another element or layer, it can be directly below the other element, or there may be more than one intermediate layer or element. Furthermore, it is also understood that when a layer or element is referred to as being "between" two layers or two elements, it can be the only layer between the two layers or two elements, or there may be more than one intermediate layer or element. Similar reference numerals throughout indicate similar elements.

[0072] The term “multiple” means two or more, unless otherwise expressly defined.

[0073] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0074] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A bone needle assembly, characterized in that, include: Bone pins and quick-connect fittings; The bone pin component includes a bone pin portion and a connecting portion; the bone pin portion is connected to the connecting portion and is located on the same axis; the bone pin portion is used for drilling operations; the cross-sectional shape of the connecting portion includes a rotationally symmetric figure; the width of the end of the connecting portion away from the bone pin portion is smaller than the width of the end of the connecting portion close to the bone pin portion. The quick-connect component includes a quick-connect end and an adapter end, with the quick-connect end and the adapter end located at opposite ends of the quick-connect component; The adapter end is used to connect to the drill gun; the quick-connect part includes a quick-connect hole that extends from the quick-connect end into the quick-connect part; the cross-sectional shape of the quick-connect hole corresponds to the cross-sectional shape of the connecting part; and is used to mate with the connecting part. The quick-connect component also includes a fixing part, which is used to fix the bone needle component after the connecting part mates with the quick-connect hole.

2. The bone needle assembly according to claim 1, characterized in that, The fixing part includes a clamping piece; one end of the clamping piece is connected to the quick-connect member, and the other end extends along the direction toward the quick-connect end and along the direction toward the central axis of the quick-connect hole. The width of the connecting portion at the end away from the bone needle portion is less than the width of the clamping piece after it limits the quick-connect hole, and the width of the connecting portion at the end near the bone needle portion is greater than the width of the clamping piece after it limits the quick-connect hole.

3. The bone needle assembly according to claim 1, characterized in that, The fixing part includes a magnetic suction structure; the magnetic suction structure is located at the end of the quick-connect hole away from the quick-connect end; At least a portion of the structure of the bone pin component, starting from the end of the connector away from the bone pin portion, is capable of generating a magnetic attraction.

4. The bone needle assembly according to claim 1, characterized in that, The fixing part includes a clamping piece and a magnetic structure; one end of the clamping piece is connected to the quick connector, and the other end extends along the direction towards the quick connector end and along the direction towards the central axis of the quick connector hole; the magnetic structure is located at the end of the quick connector hole away from the quick connector end; The width of the end of the connecting portion away from the bone pin portion is smaller than the width of the end of the connecting portion near the bone pin portion; the width of the end of the connecting portion away from the bone pin portion is smaller than the width of the clamping piece after it limits the quick-connect hole, and the width of the end of the connecting portion near the bone pin portion is larger than the width of the clamping piece after it limits the quick-connect hole; at least a portion of the structure of the bone pin component starting from the end of the connecting portion away from the bone pin portion can generate a magnetic attraction effect.

5. The bone needle assembly according to claim 2 or 4, characterized in that, The clamping piece is formed by cutting the quick-connect member; at least a portion of the clamping piece is provided corresponding to the quick-connect hole.

6. The bone needle assembly according to claim 2 or 4, characterized in that, The clamping piece has a buckle extending toward the central axis of the quick-connect hole at one end near the quick-connect end; The connecting part is provided with a snap-fit ​​groove around the connecting part, and the snap-fit ​​groove is used to cooperate with the snap-fit.

7. The bone needle assembly according to any one of claims 2 to 4, characterized in that, The cross-sectional width of the quick-connect hole near the quick-connect end is greater than the cross-sectional width of the quick-connect hole away from the quick-connect end; and the cross-sectional width of the quick-connect hole corresponds to the cross-sectional width of the connecting portion.

8. The bone needle assembly according to claim 1, characterized in that, The junction between the quick-connect hole and the quick-connect end is provided with a chamfered structure.

9. The bone needle assembly according to claim 1, characterized in that, The connecting portion includes a tapered guide and a stabilizing connecting portion; the tapered guide is located at the end of the stabilizing connecting portion away from the bone pin portion and is connected to the stabilizing connecting portion; the width of the stabilizing connecting portion is consistent; the width of the end of the tapered guide away from the bone pin portion is smaller than the width of the end of the tapered guide close to the bone pin portion; and the width of the end of the tapered guide close to the bone pin portion is consistent with the width of the stabilizing connecting portion; the length of the stabilizing connecting portion is greater than the length of the tapered guide.

10. An osteotomy drilling device, characterized in that, Includes the bone needle assembly as described in any one of claims 1 to 9.

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