Developing assembly and medical navigation equipment

Abstract

The utility model discloses a developing assembly and medical navigation equipment, the developing assembly comprises a developing part and a connecting part, the developing part is provided with angle marks capable of being displayed in a medical image, the developing part comprises a mounting area used for mounting a navigation assembly, and the angle marks are distributed in the circumferential direction of the mounting area; the navigation assembly is used for navigating the orthopedic surgery tool; the connecting part is connected with the developing part and used for being adsorbed or pasted to the human body. According to the embodiment of the invention, the connecting part is connected with the developing part, and the connecting part can be adsorbed or adhered to the human body, so that the developing part is more stably connected with the human body, and the risk that the developing part shakes and even falls off is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a developing assembly and a medical navigation device. BACKGROUND

[0002] In an orthopedic surgery requiring insertion of an orthopedic surgery tool, a navigation assembly with positioning function is generally connected with a developing component first, and then the developing component is placed on the human body for development, so as to position the reference position through the navigation assembly, and determine the implantation position and implantation angle of the orthopedic surgery tool according to the angle mark on the developing component. Then, the navigation assembly is separated from the developing component and connected with the orthopedic surgery tool, and the orthopedic surgery tool is positioned through the navigation assembly to determine whether the orthopedic surgery tool is adjusted to the predetermined implantation position and implantation angle.

[0003] Among them, after the developing component is placed on the human body, the connection between the developing component and the human body is not stable enough, and the developing component is prone to shaking or even falling during the developing process. CONTENT OF THE UTILITY MODEL

[0004] The embodiments of the present application provide a developing assembly and a medical navigation device, aiming at solving the problem that the connection between the existing developing assembly and the human body is not stable enough, and the developing component is prone to shaking or even falling during the developing process.

[0005] The embodiments of the present application provide a developing assembly, which comprises:

[0006] A developing component, which is provided with an angle mark that can be shown in a medical image, and one side of the developing component is provided with a mounting area for mounting a navigation assembly, the angle mark is distributed along the circumference of the mounting area, and the navigation assembly is used for navigating an orthopedic surgery tool;

[0007] A connecting component connected with the developing component, the connecting component is used for being adsorbed or pasted to the human body.

[0008] In some embodiments, one side of the connecting component is provided with a pasting layer, and the pasting layer is used for bonding with the human body; or,

[0009] One side of the connecting component is provided with a suction cup structure, and the suction cup structure is used for being adsorbed to the human body.

[0010] In some embodiments, the developing component and the connecting component are detachably connected.

[0011] In some embodiments, the developing component can rotate relative to the connecting component to adjust the position and / or angle of the developing component relative to the connecting component.

[0012] In some embodiments, the developing component is connected to the connecting component through a ball joint, such that the developing component is rotatable relative to the connecting component.

[0013] In some embodiments, the ball joint comprises a connecting ball and a connecting structure, the connecting structure comprises a connecting cavity, at least a portion of the connecting ball is rotatably installed in the connecting cavity, one of the connecting ball and the connecting structure is connected to the developing component, and the other of the connecting ball and the connecting structure is connected to the connecting component.

[0014] In some embodiments, the connecting structure comprises an adjusting member and a clamping portion, the clamping portion is formed with the connecting cavity, one end of the clamping portion is connected to the developing component or the connecting component, and the other end of the clamping portion is formed with an opening for inserting the connecting ball into the connecting cavity.

[0015] The adjusting member is used to drive the clamping portion to clamp or release the connecting ball in the connecting cavity.

[0016] In some embodiments, the clamping portion comprises a plurality of clamping claws, the plurality of clamping claws are spaced apart along the circumference of the connecting cavity.

[0017] The adjusting member is used to drive at least one of the clamping claws to move towards the connecting cavity, such that the plurality of clamping claws clamp the connecting ball, and the adjusting member is also used to move at least one of the clamping claws away from the connecting cavity, such that the plurality of clamping claws release the connecting ball.

[0018] In some embodiments, the adjusting member is sleeved on the outer periphery of the clamping portion, at least one of the clamping claws is threadedly connected to the adjusting member on the side away from the connecting cavity, and the adjusting member is rotated around the clamping portion to move at least one of the clamping claws towards or away from the connecting cavity.

[0019] In some embodiments, the adhesive layer is arranged on the side of the connecting component away from the developing component.

[0020] In some embodiments, the developing assembly further comprises a release layer, the release layer covers the surface of the adhesive layer on the side away from the connecting component.

[0021] In some embodiments, the connecting component is arranged opposite to the side of the developing component away from the mounting area.

[0022] In some embodiments, the connecting component comprises a connecting plate, the adhesive layer is arranged on one side of the connecting plate, and at least a portion of the connecting plate is bendable.

[0023] In some embodiments, the material of the connecting plate comprises silica gel or plastic.

[0024] In some embodiments, the connecting component further comprises a connecting part connected with the developing component, and the connecting plate is injection-molded with the connecting part.

[0025] The embodiments of the present application further provide a medical navigation device, comprising:

[0026] A developing assembly as described above, comprising a developing component and a connecting component, the developing component being provided with an angle mark that can be developed in a medical image, the developing component comprising a mounting area for mounting a navigation assembly, the angle mark being distributed along a circumference of the mounting area; the connecting component being connected with the developing component, one side of the connecting component being provided with a sticking layer for sticking with a human body;

[0027] A navigation assembly mounted on the mounting area, the navigation assembly being used for navigating an orthopedic surgery tool.

[0028] The developing assembly provided by the embodiments of the present application connects the connecting component with the developing component, and one side of the developing component is provided with a sticking layer for sticking with a human body. Thus, the developing assembly can be stuck with the human body through the sticking layer of the connecting component, so that the connection between the developing component and the human body is more stable, and the risk of shaking or even falling of the developing component is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0029] The technical solutions and other beneficial effects of the present application will become apparent through the following detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings.

[0030] Figure 1 A structural schematic diagram of one embodiment of the medical navigation device provided by the embodiments of the present application;

[0031] Figure 2 A structural schematic diagram of one embodiment of the developing assembly provided by the embodiments of the present application;

[0032] Figure 3 A structural schematic diagram of one embodiment of the developing component and the clamping part provided by the embodiments of the present application; Figure 2 A sectional view along the direction A-A;

[0033] Figure 4 A structural schematic diagram of one embodiment of the connecting component and the connecting ball provided by the embodiments of the present application;

[0034] Figure 5 A structural schematic diagram of one embodiment of the connecting component and the connecting ball provided by the embodiments of the present application;

[0035] Figure 6 A schematic diagram of one embodiment of the navigation assembly for measuring the height difference Δ provided by the embodiments of the present application;

[0036] Figure 7 A schematic view of measuring the outer deviation angle a by the navigation assembly provided in the embodiments of the present application;

[0037] Figure 8 A schematic view of determining the guide needle implantation position by the navigation assembly provided in the embodiments of the present application;

[0038] Figure 9 A schematic view of determining the guide needle implantation angle by the navigation assembly provided in the embodiments of the present application;

[0039] Figure 10 A schematic view of the structure of one embodiment of the navigation assembly and the orthopedic surgery tool provided in the embodiments of the present application.

[0040] Medical navigation device 10; imaging assembly 11; imaging component 111; angle identifier 1111; mounting area 1112; contact 1113; magnetic attraction member 1114; groove 1115; connecting component 112; connecting plate 1121; connecting part 1122; connecting rod 1123; limiting flange 1124; adhesive layer 113; release layer 114; ball pair 115; connecting ball 1151; connecting structure 1152; adjusting member 1153; clamping part 1154; clamping jaw 1155; connecting cavity 1156; opening 1157; navigation assembly 12; orthopedic surgery tool 20; bone 30. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person skilled in the art without any creative work fall within the protection scope of the present application.

[0042] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0043] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0044] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0045] The disclosure hereafter provides many different embodiments or examples for implementing various aspects of the application. For the purpose of simplicity, the elements and settings of certain examples are described in the following disclosure. Of course, they are merely examples and are not intended to limit the application. Furthermore, the application can be implemented in a variety of settings other than those described in the following disclosure. The repeated use of reference characters in the description and the drawings is intended to represent the same or similar elements or settings as discussed above.

[0046] The embodiments of the present application provide a developing assembly and a medical navigation device. The following are described in detail respectively.

[0047] Firstly, the embodiments of the present application provide a developing assembly.

[0048] Figure 1 The structural schematic diagram of one embodiment of the medical navigation device provided by the embodiments of the present application is shown in FIG. 1. As shown in FIG. 1, the medical navigation device 10 comprises a developing assembly 11 and a navigation assembly 12. The developing assembly 11 comprises a developing component 111 provided with an angle mark 1111 which can be shown in a medical image. One side of the developing component 111 is provided with a mounting area 1112 for mounting the navigation assembly 12. The angle mark 1111 is distributed along the circumference of the mounting area 1112. The navigation assembly 12 is used for navigating an orthopedic surgery tool 20. Figure 1

[0049] The navigation assembly 12 can be used for connecting with the orthopedic surgery tool 20 to navigate the angle and / or position of the orthopedic surgery tool 20. As shown in FIG. 1 and FIG. 2, the orthopedic surgery tool 20 can be a guide needle or other implanting member used for implanting into a bone 30, or as shown in FIG. 3 and FIG. 4, the orthopedic surgery tool 20 can also be an electric drill or other instrument used for connecting with the guide needle or other implanting member and driving the guide needle or other implanting member to implant into the bone 30. Figure 8 Figure 9 Figure 10

[0050] In the orthopedic surgery which needs to implant the orthopedic surgery tool 20 into the bone 30, as shown in FIG. 1 and FIG. 2, the orthopedic surgery tool 20 can be a guide needle or other implanting member used for implanting into the bone 30, or as shown in FIG. 3 and FIG. 4, the orthopedic surgery tool 20 can also be an electric drill or other instrument used for connecting with the guide needle or other implanting member and driving the guide needle or other implanting member to implant into the bone 30. Figure 8 Figure 9 ​​​​​As shown, the surgical staff sets the developing component 111 above the part of the human body where the orthopedic surgery tool 20 needs to be implanted, and installs the navigation assembly 12 on the installation area 1112 of the developing component 111, and then performs medical imaging on the angle mark 1111 of the developing component 111 and the bone 30 through the medical imaging device, determines the shape of the bone 30, and determines the expected implantation angle of the orthopedic surgery tool 20 relative to the bone 30 according to the shape of the bone 30 and the angle mark 1111 of the developing component 111. At the same time, the initial position and / or initial angle of the navigation assembly 12 installed on the installation area 1112 of the developing component 111 are determined. When the navigation assembly 12 is connected with the orthopedic surgery tool 20, the position and / or angle of the navigation assembly 12 moving relative to the initial position and / or initial angle are determined, and the angle and / or position of the orthopedic surgery tool 20 are determined, so as to realize the navigation of the orthopedic surgery tool 20.

[0051] In some embodiments, as shown in Figures 1 to 3 As shown, the developing assembly 11 can further include a connecting component 112 connected with the developing component 111, and the connecting component 112 is used for being adsorbed or pasted to the human body.

[0052] The developing assembly 11 provided by the embodiments of the present application connects the connecting component 112 with the developing component 111, and makes the connecting component 112 adsorbed or pasted to the human body. Therefore, the connection between the developing assembly 11 and the human body is more stable, and the risk of shaking or even falling of the developing component 111 is reduced.

[0053] In some embodiments, a pasting layer 113 can be arranged on one side of the connecting component 112, and the pasting layer 113 is used for being pasted to the human body, so that the connecting component 112 is pasted to the human body, and the connection between the developing component 111 and the human body is more stable, and the risk of shaking or even falling of the developing component 111 is reduced. The pasting layer 113 can be directly pasted to the surface of the human tissue, or the pasting layer 113 can be pasted to the sterile sheet or sterile film covering the surface of the human tissue.

[0054] In other embodiments, a suction cup structure (not shown in the figure) can be arranged on one side of the connecting component 112, and the suction cup structure is used for being adsorbed to the human body, so that the connecting component 112 is adsorbed to the human body, and the connection between the developing component 111 and the human body is more stable, and the risk of shaking or even falling of the developing component 111 is reduced. The suction cup structure can be directly adsorbed to the surface of the human tissue, or the suction cup structure can be adsorbed to the sterile sheet or sterile film covering the surface of the human tissue.

[0055] In some embodiments, the developing component 111 can be detachably connected with the connecting component 112. It can be understood that, since the adhesive layer 113 has adhesion, when the connecting component 112 is adhered to the human body through the adhesive layer 113, the adhesive layer 113 will adhere to many bacteria, viruses, impurities, etc., and the adhesive layer 113 generally has poor high-temperature resistance, which results in that the adhesive layer 113 of the connecting component is not suitable for disinfection and cleaning.

[0056] Therefore, by detachably connecting the developing component 111 with the connecting component 112, after the orthopedic surgery is completed, the developing component 111 can be separated from the connecting component 112, and the developing component 111 can be cleaned and disinfected alone, while the connecting component 112 can be disposed. The developing component 111 after cleaning and disinfection can be connected with a new connecting component 112 to form the developing assembly 11, so as to realize the reuse of the developing component 111 and reduce the cost of the orthopedic surgery.

[0057] In some embodiments, the developing component 111 can rotate relative to the connecting component 112 to adjust the position and / or angle of the developing component 111 relative to the connecting component 112. Thus, after the connecting component 112 of the developing assembly 11 is adhered to the human body through the adhesive layer 113, the developing component 111 can be rotated relative to the connecting component 112 to adjust the position and / or angle of the developing component 111, so as to align the developing component 111 with the bone 30 to be measured. When the angle mark 1111 of the developing component 111 and the bone 30 are subjected to medical imaging by the medical imaging equipment, the perspective image of the developing component 111 is not distorted, and the angle mark 1111 of the developing component 111 can more accurately measure the expected implantation angle of the orthopedic surgery tool 20 relative to the bone 30.

[0058] In some embodiments, the developing component 111 can be adjusted to a position substantially parallel to the bone 30 to be measured, so as to align the developing component 111 with the bone 30 to be measured. For example, when the bone 30 to be measured is in a horizontal position, the position and / or angle of the developing component 111 can be adjusted so that the developing component 111 is in a horizontal position.

[0059] In some embodiments, as shown in Figure 3 In some embodiments, the developing component 111 can be connected with the connecting component 112 through a ball joint 115, so that the developing component 111 can rotate relative to the connecting component 112. Thus, the rotational connection between the developing component 111 and the connecting component 112 can be more stable. Moreover, the structure of the ball joint 115 is relatively simple, which is conducive to reducing the cost of the developing assembly 11.

[0060] As shown in Figure 3As shown, the ball joint 115 can include a connecting ball 1151 and a connecting structure 1152, one of which is connected with the developing component 111 and the other of which is connected with the connecting component 112, wherein the connecting structure 1152 includes a connecting cavity 1156, and at least a part of the connecting ball 1151 is rotatably installed in the connecting cavity 1156. Thus, by rotating the connecting ball 1151 in the connecting cavity 1156, the angle of the developing component 111 relative to the connecting component 112 in the three-dimensional space can be adjusted, and the position of the center of gravity of the developing component 111 relative to the connecting component 112 in the three-dimensional space can also be adjusted.

[0061] It should be noted that the connecting ball 1151 of the ball joint 115 can be connected with the connecting component 112, and the connecting structure 1152 of the ball joint 115 can be connected with the developing component 111, or the connecting ball 1151 of the ball joint 115 can be connected with the developing component 111, and the connecting structure 1152 of the ball joint 115 can be connected with the connecting component 112.

[0062] In addition, the connecting ball 1151 and the connecting cavity 1156 of the connecting structure 1152 can be in interference fit, so that when the developing component 111 and the connecting component 112 are not driven by external force, the connecting structure 1152 can clamp the connecting ball 1151, so that the relative position of the connecting structure 1152 and the connecting ball 1151 remains stable, and thus the position of the developing component 111 relative to the connecting component 112 remains stable. When it is needed to rotate the developing component 111 relative to the connecting component 112, a certain external force can be applied to the developing component 111 or the connecting component 112, which is very convenient to operate.

[0063] As shown, Figures 3 to 5 The connecting structure 1152 can include a clamping portion 1154, which forms the connecting cavity 1156, one end of the clamping portion 1154 is connected with the developing component 111 or the connecting component 112, and the other end of the clamping portion 1154 forms an opening 1157 for the connecting ball 1151 to insert into the connecting cavity 1156. By passing the connecting ball 1151 through the opening 1157 of the clamping portion 1154, the connecting ball 1151 can enter the connecting cavity 1156 of the clamping portion 1154.

[0064] The clamping portion 1154 can include a plurality of clamping claws 1155, which are distributed along the circumference of the connecting cavity 1156. When the connecting ball 1151 passes through the opening 1157 of the clamping portion 1154 and enters the connecting cavity 1156, the connecting ball 1151 is clamped by the plurality of clamping claws 1155.

[0065] In some embodiments, the connecting structure 1152 can further comprise an adjusting member 1153 for driving the clamping portion 1154 to clamp or release the connecting ball 1151 in the connecting cavity 1156. Thus, when the connecting ball 1151 is inserted into the connecting cavity 1156 of the clamping portion 1154, the clamping force of the clamping portion 1154 on the connecting ball 1151 can be increased by driving the clamping portion 1154 with the adjusting member 1153, so that the connecting ball 1151 is not easy to rotate in the connecting cavity 1156 of the clamping portion 1154, and the relative position of the developing component 111 and the connecting component 112 is more stable.

[0066] When the adjusting member 1153 releases the connecting ball 1151 in the connecting cavity 1156 of the clamping portion 1154, the clamping force of the clamping portion 1154 on the connecting ball 1151 in the connecting cavity 1156 is weakened or even disappears, so that the connecting ball 1151 can be easily taken out of the connecting cavity 1156, and the separation of the developing component 111 and the connecting component 112 is more convenient.

[0067] In some embodiments, the adjusting member 1153 can be used to drive at least one clamping jaw 1155 of the clamping portion 1154 to move towards the connecting cavity 1156, so that the plurality of clamping jaws 1155 clamp the connecting ball 1151. By driving at least one clamping jaw 1155 of the clamping portion 1154 to move towards the connecting cavity 1156 with the adjusting member 1153, the connecting cavity 1156 can be compressed, so that at least two clamping jaws 1155 abut the surface of the connecting ball 1151, thereby clamping the connecting ball 1151.

[0068] In addition, the adjusting member 1153 can also be used to move at least one clamping jaw 1155 away from the connecting cavity 1156, so that the plurality of clamping jaws 1155 release the connecting ball 1151. By moving at least one clamping jaw 1155 away from the connecting cavity 1156 with the adjusting member 1153, the connecting cavity 1156 can be expanded, so that the clamping jaw 1155 clamping the connecting ball 1151 is separated from the surface of the connecting ball 1151, or the clamping force of the clamping jaw 1155 on the surface of the connecting ball 1151 is reduced, so as to facilitate the connecting ball 1151 to be taken out of the connecting cavity 1156, and the connecting ball 1151 is separated from the connecting structure 1152.

[0069] In some embodiments, the opening 1157 of the clamping part 1154 is located at the same end of the plurality of clamping claws 1155, and the ends of the plurality of clamping claws 1155 away from the opening 1157 are respectively connected with the developing component 111 or the connecting component 112. In this case, the clamping claws 1155 are elastic, or the ends of the clamping claws 1155 away from the opening 1157 are rotationally connected with the developing component 111 or the connecting component 112. By pressing the adjusting member 1153 against at least one clamping claw 1155, the at least one clamping claw 1155 is deformed or swings towards the connecting cavity 1156, so as to compress the connecting cavity 1156, and the at least two clamping claws 1155 can abut against and clamp the connecting ball 1151 in the connecting cavity 1156.

[0070] When the adjusting member 1153 reduces the pressing force against the at least one clamping claw 1155, the at least one clamping claw 1155 moves or swings away from the connecting cavity 1156, so as to reduce the pressure between the clamping claws 1155 and the connecting ball 1151, or the clamping claws 1155 are separated from the connecting ball 1151, so that the connecting ball 1151 can be taken out of the connecting cavity 1156.

[0071] Specifically, the adjusting member 1153 can be sleeved on the outer periphery of the clamping part 1154, and the side of the at least one clamping claw 1155 away from the connecting cavity 1156 is threadedly connected with the adjusting member 1153. The adjusting member 1153 rotates around the clamping part 1154, so as to move the at least one clamping claw 1155 towards or away from the connecting cavity 1156.

[0072] In this way, when the connecting ball 1151 passes through the opening 1157 of the clamping part 1154 and is inserted into the connecting cavity 1156, the surgeon can move the at least one clamping claw 1155 towards the connecting cavity 1156 by rotating the adjusting member 1153 around the clamping part 1154 in one direction, so that the clamping claw 1155 clamps the connecting ball 1151. The surgeon can move the at least one clamping claw 1155 away from the connecting cavity 1156 by rotating the adjusting member 1153 around the clamping part 1154 in the opposite direction, so that the clamping claw 1155 releases the connecting ball 1151. The operation is very convenient.

[0073] In this case, the side of each clamping claw 1155 away from the connecting cavity 1156 is threadedly connected with the adjusting member 1153. In this way, when the adjusting member 1153 rotates around the clamping part 1154, the plurality of clamping claws 1155 can be simultaneously moved towards or away from the connecting cavity 1156, so that the plurality of clamping claws 1155 can clamp or release the connecting ball 1151 more quickly.

[0074] Specifically, the adjusting member 1153 is provided with an internal thread towards the inner surface of the clamping portion 1154, and the clamping jaw 1155 is provided with an external thread adapted to the internal thread on the side surface away from the connecting cavity 1156. When the adjusting member 1153 is sleeved on the outer periphery of the clamping portion 1154, the internal thread of the adjusting member 1153 is threadedly connected with the external thread of the clamping jaw 1155. The surface of the clamping jaw 1155 on the side towards the connecting cavity 1156 is a concave spherical surface adapted to the outer surface of the connecting ball 1151, so that the clamping jaw 1155 can more stably clamp the connecting ball 1151.

[0075] In other embodiments, the adjusting member 1153 can also not be provided, and after the connecting ball 1151 is inserted into the connecting cavity 1156, the connecting ball 1151 extrudes the plurality of clamping jaws 1155, so that the plurality of clamping jaws 1155 are deformed away from the connecting cavity 1156, thereby clamping the connecting ball 1151 by the extrusion force between the plurality of clamping jaws 1155 and the connecting ball 1151. When it is needed to separate the connecting ball 1151 from the clamping portion 1154, a larger pulling force is directly used to pull the connecting ball 1151 out of the connecting cavity 1156.

[0076] In addition, the developing component 111 and the connecting component 112 can also be connected through other structures to realize the position and / or angle adjustment of the developing component 111 relative to the connecting component 112. For example, the connecting component 112 can be rotationally connected with an adapter (not shown in the figure), and the adapter is rotationally connected with the developing component 111, and the rotation axis of the developing component 111 relative to the adapter is out of the plane of the rotation axis of the connecting component 112 relative to the adapter, so that the angle of the developing component 111 relative to the connecting component 112 in the three-dimensional space is adjusted, and at the same time, the position of the gravity center of the developing component 111 relative to the connecting component 112 in the three-dimensional space is also adjusted.

[0077] Of course, the developing component 111 can also be directly rotationally connected with the connecting component 112, so that the angle of the developing component 111 relative to the connecting component 112 in the plane is adjusted, and at the same time, the position of the gravity center of the developing component 111 relative to the connecting component 112 in the plane is also adjusted.

[0078] In some embodiments, the adhesive layer 113 can be arranged on the side of the connecting component 112 away from the developing component 111. Thus, when the adhesive layer 113 is pasted to the human body, the developing component 111 is located on the side of the connecting component 112 away from the human body, so as to facilitate the adjustment of the position and / or angle of the developing component 111. After the angle mark 1111 of the developing component 111 and the bone 30 are medically developed by the medical imaging device, the angle mark 1111 of the developing component 111 can also be observed very conveniently.

[0079] In some embodiments, the developing assembly 11 can further include a release layer 114 covering the surface of the adhesive layer 113 away from the connecting component 112. Thus, when the developing assembly 11 is not in use, the release layer 114 can protect the surface of the adhesive layer 113 away from the connecting component 112 from impurities and bacteria in the external environment. When the adhesive layer 113 needs to be attached to the human body, the release layer 114 can be easily removed. The release layer 114 can be release paper or other structures that can be easily removed from the surface of the adhesive layer 113 without affecting the adhesion strength of the surface of the adhesive layer 113, which is not limited here.

[0080] In some embodiments, the connecting component 112 is arranged opposite to the side of the developing component 111 away from the mounting area 1112. Thus, when the adhesive layer 113 of the connecting component 112 is attached to the human body, the developing component 111 is located on the side of the connecting component 112 away from the human body, and the navigation assembly 12 is located on the side of the developing component 111 away from the human body, which is conducive to making the position of the navigation assembly 12 relative to the developing component 111 more stable.

[0081] In some embodiments, the connecting component 112 can include a connecting plate 1121, the adhesive layer 113 is arranged on one side of the connecting plate 1121, and at least part of the connecting plate 1121 can be deformed. Thus, during the process of attaching the adhesive layer 113 to the human body, the connecting plate 1121 can be deformed to make the shape of the connecting plate 1121 and the adhesive layer 113 more suitable for the surface profile of the human body, so as to increase the area of the adhesive layer 113 attached to the human body and make the adhesion strength of the adhesive layer 113 to the human body higher.

[0082] In some embodiments, the material of the connecting plate 1121 includes silica gel or plastic, so that the connecting plate 1121 can be deformed more easily and has a lower cost.

[0083] In some embodiments, the connecting component 112 further includes a connecting part 1122 connected with the developing component 111, and the connecting plate 1121 is injection-molded with the connecting part 1122, so that the connecting strength of the connecting plate 1121 and the connecting part 1122 is higher.

[0084] In some embodiments, the connecting part 1122 can be connected with the connecting ball 1151 or the connecting component 112, so that the connecting component 112 is rotationally connected with the developing component 111. Of course, the connecting part 1122 can also be directly rotationally connected with the developing component 111, so that the developing component 111 can rotate relative to the connecting component 112. In addition, the connecting component 112 can also be detachably connected with the developing component 111, so that the developing component 111 can be separated from the connecting component 112.

[0085] Specifically, as shown in FIG. 1, the connecting component 112 can include a connecting plate 1121 and a connecting part 1122. The adhesive layer 113 is arranged on one side of the connecting plate 1121, and the connecting part 1122 is arranged on the other side of the connecting plate 1121. The connecting part 1122 is connected with the developing component 111, so that the connecting plate 1121 and the developing component 111 are rotationally connected. Figure 3As shown, the connecting part 1122 includes a connecting rod 1123, and a limiting flange 1124 arranged on the outer periphery of the connecting rod 1123, the limiting flange 1124 is located at one end of the connecting rod 1123. The other end of the connecting rod 1123 is integrally connected with the connecting ball 1151. The connecting plate 1121 wraps the flange and the end of the connecting rod 1123 close to the flange, so that the connection of the connecting plate 1121 and the connecting part 1122 is more stable.

[0086] In some embodiments, as shown, a recess 1115 can be formed on one side of the developing component 111 to form a mounting area 1112, and the navigation assembly 12 can be detachably mounted in the recess 1115, so as to quickly position the navigation assembly 12 relative to the developing component 111. Figure 1

[0087] In the recess 1115, a magnetic member 1114 can also be arranged on the bottom surface of the recess 1115, and the magnetic member 1114 is used to magnetically attract the magnetic member of the navigation assembly 12, so as to improve the mounting stability of the navigation assembly 12 in the recess 1115.

[0088] Of course, the mounting area 1112 on one side of the developing component 111 can be a flat surface, and the navigation assembly 12 can be directly placed on the mounting area 1112. Only the navigation assembly 12 can be aligned with the angle mark 1111 on the developing component 111.

[0089] The use of the developing assembly 11 will be described in detail below.

[0090] As shown in Figure 1 The developing component 111 is made of X-ray transparent material, and the side surface of the developing component 111 provided with the mounting area 1112 is silk-screen printed with scale lines similar to a protractor. The developing component 111 is internally integrated with developing wires corresponding to the scale lines silk-screen printed on the surface, so as to form an angle mark 1111. The angle mark 1111 is arranged in a fan shape along the circumference of the mounting area 1112 and can be developed under X-ray perspective. The scale line corresponding to 0° is located at the center of the developing component 111. When the navigation assembly 12 is mounted on the mounting area 1112 of the developing component 111, the 0° scale line is parallel to the central axis of the navigation assembly 12 in the zero position.

[0091] The navigation assembly 12 is internally integrated with a six-degree-of-freedom inertial sensor and a level. The inertial sensor is used to measure the position deviation (x, y, z) and angle deviation (α, β, γ) of the navigation assembly 12 relative to a certain set reference. The inertial sensor itself coordinate system Ψ is defined as Figure 6 and Figure 7 ​As shown, once the reference of the inertial sensor is set, the navigation assembly 12 is moved, the inertial sensor can measure the pose change of the current navigation assembly 12 relative to the reference, i.e. the displacement amount along the three coordinate axes (x, y, z) and the angular deviation of the current direction of each coordinate axis relative to the direction of the reference coordinate axis (α, β, γ). The level meter is used to measure the pitch angle of the bottom surface of the navigation assembly 12 relative to the absolute horizontal plane.

[0092] The navigation assembly 12 is provided with a display screen for displaying the position and angular deviation of the coordinate system Ψ' of the current position of the navigation assembly 12 after moving relative to the coordinate system Ψ of the reference position. The numerical values displayed on the display screen include the height difference Δ, such as Figure 6 As shown, the height difference Δ represents the projection of the displacement of the origin of the coordinate system Ψ' of the current position of the navigation assembly 12 relative to the origin of the coordinate system Ψ of the reference position on the Z-axis of the coordinate system Ψ of the reference position, i.e. z in the above-mentioned position deviation (x, y, z).

[0093] The numerical values displayed on the display screen also include the yaw angle. As shown, Figure 7 As shown, the yaw angle represents the included angle between the projection of the X-axis of the coordinate system Ψ' of the current position of the navigation assembly 12 on the XOY plane of the coordinate system Ψ of the reference position and the X-axis of the coordinate system Ψ of the reference position, i.e. α in the above-mentioned angular deviation (α, β, γ).

[0094] The numerical values displayed on the display screen also include the pitch angle. The pitch angle represents the pitch angle of the plane on which the bottom surface of the current position of the navigation assembly 12 is located relative to the absolute horizontal plane, which is positive when the tail is raised and negative when the head is raised.

[0095] Since the scenarios of positioning the nail point are similar for intramedullary nails at different positions, such as femoral, tibial, humeral intramedullary nails, etc., the tool use method is described in detail taking the femoral proximal intramedullary nail surgery as an example.

[0096] In the femoral proximal intramedullary nail surgery, the patient usually adopts a supine position. Before the guide pin is punched after the skin incision, the medical navigation device 10 is fixed on the surface of the proximal femur of the human body. The adhesive layer 113 provided on the connecting component 112 can be firmly adhered to the surface of the human body or laid on the sterile sheet or sterile film on the surface of the human body. Moreover, by bending and deforming the connecting component 112, the shape of the adhesive layer 113 is adapted to the contour of the surface of the human body, so as to improve the adhesive area of the adhesive layer 113 on the surface of the human body, the sterile sheet or the sterile film.

[0097] Afterwards, the developing component 111 can be rotated to adjust the angle of the developing component 111, so that the upper surface of the developing component 111 is substantially parallel to the horizontal plane, so that when the medical imaging device is used to take a perspective view, the plane formed by the angle markers 1111 inside the developing component 111 is perpendicular to the perspective direction, so as to ensure that the perspective view of the developing component 111 is not distorted, and the reading angle value is more accurate.

[0098] The navigation assembly 12 is designed with a contact point on the bottom surface, and when the contact point contacts the corresponding contact point 1113 on the developing component 111, the navigation assembly 12 is activated. The navigation assembly 12 installed on the installation area 1112 of the developing component 111 is at zero position at this time, and the inertial sensor inside the navigation assembly 12 can record the current zero position as the movement reference of the navigation assembly 12 by single-clicking or double-clicking the display screen, and at this time, the height difference Δdisplayed on the display screen is 0, the lateral deviation angle is 0°, and the pitch angle is close to 0°.

[0099] The surgical staff takes an anteroposterior film of the proximal femur using the medical imaging device, and selects an angle marker 1111 parallel to the expected direction of nail insertion and the angle value corresponding to the angle marker 1111 based on the perspective view of the developing component 111, for example, the angle marker 1111 corresponding to the angle value of -10° is parallel to the direction of the femoral shaft axis, so the angle corresponding to the expected direction of nail insertion should be -10°.

[0100] The navigation assembly 12 is removed from the developing component 111, and as shown in Figure 8 The navigation assembly 12 is installed on the guide pin, guide pin holder or electric drill. If the guide pin is inserted manually, the navigation assembly 12 can be directly fixed on the guide pin in a pasting manner. If the guide pin is inserted using a holder or an electric drill, the navigation assembly can be directly installed on the holder or the electric drill by magnetic attraction or the like.

[0101] When the patient is supine, the ridge contour line of the greater trochanter of the affected side is generally along the vertical direction, and can be manually touched by the surgical staff from the incision. The surgical staff holds the guide pin with the navigation assembly 12 installed thereon and makes the axial direction of the guide pin approximately in the horizontal plane, and the pitch angle value displayed on the display screen of the navigation assembly 12 can assist the surgical staff to check whether the guide pin is approximately kept horizontal. When the pitch angle value is 0°, it indicates that the axial direction of the guide pin is approximately in the horizontal plane.

[0102] The navigation assembly 12 can measure and display the height difference Δ of the current position relative to the reference zero position in real time, and the height difference Δ is 3 for example. Then, the tip of the guide pin is placed on the vertex of the ridge contour of the greater trochanter vertex closest to the dorsal side, and the navigation assembly 12 displays the height difference Δ of 11 for example. The surgeon holds the guide pin horizontally and moves the tip of the guide pin on the ridge contour of the greater trochanter vertex, and the navigation assembly 12 displays the height difference Δ between 3 and 11 in real time. Finally, if the surgeon selects the midpoint of the ridge contour of the greater trochanter vertex as the entry point, the midpoint of the ridge contour of the greater trochanter vertex is the expected entry point when the height difference Δ is (3+11) / 2=7. Similarly, if the surgeon selects the front 1 / 3 of the ridge contour of the greater trochanter vertex as the entry point, the expected entry point is when the height difference Δ is 5 or 6.

[0103] Then, as shown in FIG. 6, the tip of the guide pin is kept at the expected entry point, and the navigation assembly 12 measures and displays the lateral angle of the current position relative to the reference zero position 0° in real time. When the lateral angle displayed by the navigation assembly 12 is -10°, the direction of the guide pin reaches the expected lateral angle. The surgeon can adjust the anteversion angle of the guide pin according to the anteversion angle displayed by the navigation assembly 12, and then insert the guide pin after the anteversion angle is adjusted to the appropriate angle. Figure 9

[0104] If the surgeon fails to insert the guide pin at the desired position and angle by using the navigation assembly 12, the surgeon can select to remove the first guide pin and install the navigation assembly 12 on the second guide pin, and then adjust the position and direction of the second guide pin according to the height difference Δ, lateral angle, anteversion angle and other parameters displayed by the navigation assembly 12, and then insert the second guide pin. Alternatively, the surgeon can use the star sleeve to adjust the entry point of the guide pin.

[0105] The medical navigation device provided in the embodiments of the present application also includes the imaging assembly, and the imaging assembly is specifically configured as described above. Since the medical navigation device adopts all the technical solutions of the above embodiments, it has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0106] The medical navigation device 10 includes the imaging assembly 11 and the navigation assembly 12, and the structures of the imaging assembly 11 and the navigation assembly 12 can refer to the above embodiments. The navigation assembly 12 is installed on the installation area 1112 of the imaging assembly 111, and the navigation assembly 12 is used to navigate the orthopedic surgical tool 20.

[0107] ​In the above embodiments, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0108] The above describes in detail a developing assembly and a medical navigation device provided by the embodiments of the present application. The principles and implementation manners of the present application are described by using specific examples. The above description of the embodiments is only used to help understand the technical solutions of the present application and the core ideas thereof. It should be understood by those skilled in the art that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features thereof can be replaced equivalently. The modifications or replacements do not change the essence of the corresponding technical solutions out of the scope of the technical solutions of the embodiments of the present application.

Claims

1. A developing assembly, characterized in that, The developing component includes: The imaging component has angle markers that can be displayed in medical images. One side of the imaging component has a mounting area for mounting a navigation component. The angle markers are distributed circumferentially along the mounting area. The navigation component is used to navigate orthopedic surgical tools. A connecting component is connected to the developing component, and the connecting component is used to adhere to or stick to the human body.

2. The developing assembly as described in claim 1, characterized in that, One side of the connecting component is provided with an adhesive layer, which is used to adhere to the human body; or, The connecting component has a suction cup structure on one side, which is used to adhere to the human body.

3. The developing assembly as described in claim 1, characterized in that, The developing component and the connecting component are detachably connected.

4. The developing assembly as described in any one of claims 1 to 3, characterized in that, The developing component can rotate relative to the connecting component to adjust the position and / or angle of the developing component relative to the connecting component.

5. The developing assembly as described in claim 4, characterized in that, The developing component and the connecting component are connected by a ball joint, so that the developing component can rotate relative to the connecting component.

6. The developing assembly as described in claim 5, characterized in that, The ball assembly includes a connecting ball and a connecting structure. The connecting structure includes a connecting cavity. At least a portion of the connecting ball is rotatably mounted within the connecting cavity. One of the connecting ball and the connecting structure is connected to the developing component, and the other of the connecting ball and the connecting structure is connected to the connecting component.

7. The developing assembly as claimed in claim 6, characterized in that, The connection structure includes an adjusting member and a clamping part. The clamping part forms the connection cavity. One end of the clamping part is connected to the developing member or the connecting member. The other end of the clamping part forms an opening for the connecting ball to be inserted into the connection cavity. The adjusting member is used to drive the clamping part to clamp or release the connecting ball located in the connecting cavity.

8. The developing assembly as claimed in claim 7, characterized in that, The clamping part includes a plurality of clamping claws, which are distributed at intervals along the circumference of the connecting cavity; The adjusting member is used to drive at least one of the grippers to move toward the connecting cavity so that the plurality of grippers hold the connecting ball; the adjusting member is also used to move at least one of the grippers away from the connecting cavity so that the plurality of grippers release the connecting ball.

9. The developing assembly as claimed in claim 8, characterized in that, The adjusting member is sleeved on the outer periphery of the clamping part, and at least one of the jaws is threadedly connected to the adjusting member on the side away from the connecting cavity. The adjusting member rotates around the clamping part to move at least one of the jaws toward or away from the connecting cavity.

10. The developing assembly as claimed in claim 2, characterized in that, The adhesive layer is located on the side of the connecting component opposite to the developing component.

11. The developing assembly as claimed in claim 2, characterized in that, The developing assembly further includes a release layer that covers the surface of the adhesive layer opposite to the connecting component.

12. The developing assembly as claimed in any one of claims 1 to 3, characterized in that, The connecting component is positioned opposite to the developing component on the side away from the mounting area.

13. The developing assembly as claimed in claim 2, characterized in that, The connecting component includes a connecting plate, the adhesive layer is disposed on one side of the connecting plate, and at least a portion of the connecting plate is bendable and deformable.

14. The developing assembly as claimed in claim 13, characterized in that, The connecting plate is made of silicone or plastic.

15. The developing assembly as claimed in claim 13, characterized in that, The connecting component further includes a connecting part, which is connected to the developing component, and the connecting plate is injection molded to the connecting part.

16. A medical navigation device, characterized in that, include: A developing assembly, wherein the developing assembly is the developing assembly according to any one of claims 1 to 15; A navigation component is installed in the mounting area of ​​the imaging component of the imaging component, and the navigation component is used to navigate orthopedic surgical tools.

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