Tantalum-coated anatomical shoulder prosthesis

Abstract

The present invention provides a tantalum-coated anatomical shoulder joint prosthesis, belonging to the technical field of medical devices. It comprises a metal glenoid, one end of the metal glenoid is provided with a metal glenoid fixing screw, one end of the metal glenoid is provided with a glenosphere head, and the bottom end of the glenosphere head is provided with a mounting thread one; a fixing component, the inner wall thread sleeve of the mounting thread one is provided with a fixing component, and the fixing component is used to connect and fix between the glenosphere head and the implant component; an implant component, the bottom end of the fixing component is provided with an implant component, and the implant component is used to implant a prosthesis base at the humeral head. The present invention improves the fit between the protective cover plate and the patient's humeral section by providing a fixing component, and provides a secondary support for the inner wall of the patient's humerus by providing an implant component, thereby improving the stability of the implant plate after implantation into the cross-shaped incision of the patient's humerus, and avoiding loosening of the implant plate to affect the implantation effect of the shoulder joint prosthesis.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a tantalum-coated anatomical shoulder joint prosthesis. Background Art

[0002] The shoulder joint is the most mobile joint in the human body, and because of its large head and small glenoid cavity, it is also the most unstable joint in the human body. For patients with end-stage shoulder degeneration and certain complex shoulder trauma that affect their lives, shoulder replacement, that is, replacing the humeral head and glenoid cavity with artificial materials at the same time or separately, is considered the only viable treatment option. The shoulder replacement prostheses currently used in the market are designed to conform to the human anatomy, namely conventional type or anatomical type.

[0003] However, when the existing anatomical shoulder prosthesis is implanted and installed in the patient's shoulder joint, the fixation method is relatively simple, and the prosthesis may become loose due to stress during subsequent use by the patient. At the same time, after installation, the prosthesis comes into contact with the biological tissue of the patient's shoulder joint, and may be worn after long-term use, causing discomfort in the patient's shoulder joint and affecting the patient's daily life. Therefore, the present application provides a tantalum-coated anatomical shoulder prosthesis to meet the needs. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a tantalum-coated anatomical shoulder joint prosthesis to solve the problem that the existing anatomical shoulder joint prosthesis has a relatively single fixation method when being implanted and installed in the patient's shoulder joint, and may become loose under force during subsequent use by the patient. At the same time, after installation, the prosthesis contacts the biological tissue at the patient's shoulder joint, and may be worn after long-term use, causing discomfort in the patient's shoulder joint and affecting the patient's daily life.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A tantalum-coated anatomical shoulder joint prosthesis comprises a metal glenoid, a fixing component and an implant component, wherein one end of the metal glenoid is provided with a metal glenoid fixing screw, one end of the metal glenoid is provided with a glenosphere head, and the bottom end of the glenosphere head is provided with a mounting thread.

[0007] The mounting thread-inner wall thread sleeve is provided with a fixing component, and the fixing component is used to connect and fix between the glenosphere head and the implant component;

[0008] An implant component is arranged at the bottom end of the fixing component, and the implant component is used for implanting a prosthesis base at the humeral head.

[0009] Optionally, the fixing assembly includes a threaded base, the threaded base is threadedly connected to a mounting thread, and a protective cover is sleeved on an outer surface of the threaded base.

[0010] Optionally, a corrosion-resistant coating is provided on the bottom surface of the protective cover plate, and the material of the corrosion-resistant coating is set to be tantalum metal material.

[0011] Optionally, fixing nail holes are provided on one side of the protective cover plate, the fixing nail holes are arranged at equal angles on one side of the protective cover plate, the angle between the fixing nail holes is set to 90 degrees, and the inner wall of the fixing nail hole is sleeved with installation nails.

[0012] Optionally, a stud is sleeved on the inner wall of the threaded base, an upper thread is provided on the upper outer surface of the stud, the upper thread is threadedly connected to the threaded base, a lower thread is provided on the lower outer surface of the stud, and a push block is provided at the bottom end of the stud.

[0013] Optionally, the implant component includes a mounting column, an inner wall of the mounting column is connected to a lower thread, and an implant plate is provided on one side of an outer surface of the mounting column.

[0014] Optionally, the implant plates are arranged at equal angles on the outer surface of the mounting column, the angle between the implant plates is set to 90 degrees, the outer surface of the implant plates is provided with a corrosion-resistant coating, and the material of the corrosion-resistant coating is set to tantalum metal material.

[0015] Optionally, openings are provided through the outer surface of the implant plate, and the openings are arranged in an array on the outer surface of the implant plate.

[0016] Optionally, a pad is provided on the outer surface of the implant plate, the pad is in contact with the inner wall of the humerus, the pad is provided with a corrosion-resistant coating, and the material of the corrosion-resistant coating is set to tantalum metal material.

[0017] Optionally, a wedge block 1 is sleeved on the inner wall of the mounting column, the top surface of the wedge block 1 is in contact with a push block 1, a push plate is provided at one end of the wedge block 1, one end of the push plate is in contact with a wedge block 2, the wedge block 2 is nested on the inner wall of the implant plate, the number of the wedge blocks 2 is set in two groups, the two groups of wedge blocks 2 are relatively arranged on the inner wall of the implant plate, a support nail is provided at one end of the wedge block 2, and one end of the support nail is in contact with the inner wall of the humerus.

[0018] Compared with the prior art, the present invention has at least the following beneficial effects:

[0019] In the above scheme, by setting a fixing component and utilizing the rotational cooperation between the stud, the upper thread and the lower thread, the connection effect between the protective cover and the mounting column is achieved, the connection stability between the protective cover and the patient's humeral cut surface is further protected, and the degree of fit between the protective cover and the patient's humeral cut surface is improved. At the same time, by providing a tantalum metal coating on the bottom end of the protective cover and utilizing the material properties of tantalum metal, the corrosion resistance of the bottom end of the protective cover is improved without affecting the biological activity of the biological tissue at the patient's humeral cut surface, thereby avoiding rejection reaction caused by contact between the biological tissue at the patient's shoulder joint after the shoulder joint prosthesis is implanted in the patient's humeral cross incision.

[0020] By providing an implant component and utilizing specially designed openings and pads on the outer surface of the implant plate, a gap is formed between the implant plate and the inner wall of the patient's humerus while ensuring the contact area between the implant plate and the inner wall of the patient's humerus. At the same time, utilizing the material properties of the tantalum metal coating provided on the surface of the implant plate and the pad, the secondary recovery of the patient's humeral section is improved without affecting the biological activity of the biological tissue at the patient's humeral section, thereby avoiding rejection reaction after the implant plate is implanted into the cross-shaped incision of the patient's humerus. At the same time, by providing linkage cooperation between wedge block 1, the push plate and wedge block 2, after the implant plate is implanted into the cross-shaped incision of the patient's humerus, the support pin is driven out by wedge block 2 to provide secondary support to the inner wall of the patient's humerus, thereby improving the stability of the implant plate after implantation into the cross-shaped incision of the patient's humerus, thereby avoiding loosening of the implant plate and affecting the implantation effect of the shoulder joint prosthesis. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the tantalum-coated anatomical shoulder prosthesis;

[0023] Figure 2 An exploded view of a tantalum-coated anatomical shoulder prosthesis;

[0024] Figure 3 It is a schematic diagram of the fixed component structure;

[0025] Figure 4 It is a schematic diagram of the structure of some components of the fixed component;

[0026] Figure 5 It is a schematic diagram of the structure of the stud, upper thread and lower thread;

[0027] Figure 6 is a schematic diagram of the implant component structure;

[0028] Figure 7is a schematic diagram of the cross-sectional structure of the implant component;

[0029] Figure 8 Schematic diagram of the structure of some components of the implant component.

[0030] [Reference Signs]

[0031] 1. Metal glenoid cavity; 2. Metal glenoid fixing screw; 3. Glenoid ball head; 4. Mounting thread 1; 5. Fixing assembly; 51. Threaded base; 52. Protective cover; 53. Fixing nail hole; 54. Mounting nail; 55. Stud; 56. Upper thread; 57. Lower thread; 58. Push block 1; 6. Implantation assembly; 61. Mounting column; 62. Implantation plate; 63. Opening; 64. Spacer; 65. Wedge block 1; 66. Push plate; 67. Wedge block 2; 68. Support nail.

[0032] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0033] The following is a detailed description of a tantalum-coated anatomical shoulder joint prosthesis provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0034] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0035] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0036] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0037] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0038] like Figure 1 to Figure 2 As shown, an embodiment of the present invention provides a tantalum-coated anatomical shoulder joint prosthesis, including a metal glenoid 1, a fixing component 5 and an implant component 6, wherein a metal glenoid fixing screw 2 is provided at one end of the metal glenoid 1, a glenosphere head 3 is provided at one end of the metal glenoid 1, and a mounting thread 4 is provided at the bottom end of the glenosphere head 3; a fixing component 5 is provided on the inner wall thread sleeve of the mounting thread 4, and the fixing component 5 is used for connecting and fixing between the glenosphere head 3 and the implant component 6; an implant component 6 is provided at the bottom end of the fixing component 5, and the implant component 6 is used for implanting a prosthesis base at the humeral head.

[0039] like Figures 3 to 5 As shown, the fixing assembly 5 includes a threaded base 51, which is threadedly connected to the mounting thread 4, a protective cover plate 52 is sleeved on the outer surface of the threaded base 51, and a corrosion-resistant coating is provided on the bottom surface of the protective cover plate 52, and the material of the corrosion-resistant coating is set to tantalum metal material, a fixing nail hole 53 is set on one side of the protective cover plate 52, and the fixing nail holes 53 are arranged at equal angles on one side of the protective cover plate 52, and the angles between the fixing nail holes 53 are set to 90 degrees, and mounting nails 54 are sleeved on the inner wall of the fixing nail hole 53, and a stud 55 is sleeved on the inner wall of the threaded base 51, and an upper thread 56 is provided on the upper outer surface of the stud 55, and the upper thread 56 is threadedly connected to the threaded base 51, a lower thread 57 is provided on the lower outer surface of the stud 55, and a push block 58 is provided at the bottom end of the stud 55.

[0040] In this embodiment, after the installation of the mounting post 61 and the implantation plate 62 is completed, the medical staff aligns the threaded base 51 with the mounting post 61, and the threaded base 51 drives the protective cover plate 52 close to the implantation plate 62. Then, the medical staff puts the stud 55 into the threaded base 51, and rotates and presses the stud 55 downward through a tool. While the stud 55 is rotating and pressing downward, the stud 55 drives the push block 58 at the bottom to rotate and press downward. While the stud 55 is rotating, the upper thread 56 and the lower thread 57 are driven to rotate synchronously. Under the rotation of the upper thread 56 and the lower thread 57, the stud 55 is inserted into the implantation plate 62. The column 55 creates a threaded connection effect between the threaded base 51 and the mounting column 61. At this time, the threaded base 51 drives the bottom end of the protective cover 52 to contact the top end of the implant plate 62, and the bottom end of the protective cover 52 contacts the cross-section of the patient's humerus. Similarly, the tantalum metal coating makes the outer surfaces of the implant plate 62 and the pad 64 corrosion-resistant while not affecting the biological activity of the biological tissue at the cross-section of the patient's humerus. Subsequently, the medical staff drives the mounting nail 54 into the cross-section of the patient's humerus through the fixing nail hole 53 to achieve a fixing effect between the protective cover 52 and the cross-section of the humerus.

[0041] By setting the rotational cooperation between the stud 55, the upper thread 56 and the lower thread 57, the connection effect between the protective cover 52 and the mounting column 61 is achieved, and the fit between the protective cover 52 and the patient's humeral section is improved. At the same time, by setting a tantalum metal coating on the bottom end of the protective cover 52 and utilizing the material properties of tantalum metal, the corrosion resistance of the bottom end of the protective cover 52 is improved without affecting the biological activity of the biological tissue at the patient's humeral section.

[0042] like Figures 6 to 8As shown, the implant component 6 includes a mounting post 61, the inner wall of the mounting post 61 is connected to the lower thread 57, an implant plate 62 is arranged on one side of the outer surface of the mounting post 61, the implant plates 62 are arranged at equal angles on the outer surface of the mounting post 61, the angle between the implant plates 62 is set to 90 degrees, the outer surface of the implant plate 62 is provided with a corrosion-resistant coating, the material of the corrosion-resistant coating is set to tantalum metal material, the outer surface of the implant plate 62 is provided with openings 63, the openings 63 are arranged in an array on the outer surface of the implant plate 62, a pad 64 is provided on the outer surface of the implant plate 62, the pad 64 is in contact with the inner wall of the humerus, the pad 64 is provided with a corrosion-resistant coating, the material of the corrosion-resistant coating is set to tantalum metal material, the inner wall of the mounting post 61 is sleeved with a wedge block 65, the top of the wedge block 65 is a semicircular arc structure, the wedge The outer surface of block 1 65 is in sliding contact with the inner wall of the mounting column 61, and the semicircular arc structure at the top of the wedge block 1 65 conflicts with the bottom end of the push block 1 58. A push plate 66 is provided at one end of the wedge block 1 65, and the push plate 66 is fixedly connected to the wedge block 1 65. The cross-sectional structure of one end of the push plate 66 is a semicircular arc structure, and the semicircular arc structure at one end of the push plate 66 contacts with a wedge block 2 67. The wedge block 2 67 is nested in the inner wall of the implant plate 62. The outer surface of the wedge block 2 67 is in sliding contact with the implant plate 62, and the cross-sectional structure of the wedge block 2 67 is set as a semicircular arc structure. The number of wedge blocks 2 67 is set as two groups, and the two groups of wedge blocks 2 67 are relatively arranged on the inner wall of the implant plate 62. A support nail 68 is provided at one end of the wedge block 2 67. The end face of the support nail 68 is a conical structure, and the conical end face of one end of the support nail 68 conflicts with the inner wall of the humerus.

[0043] In this embodiment, the medical staff first observes and measures the bone condition of the patient's shoulder joint, and then uses a cutting tool to cut the proximal part of the patient's humerus to form a cutting surface for the installation of the shoulder joint prosthesis. Then, the medical staff uses a positioner to form a cross-shaped incision on the cutting surface of the humerus;

[0044] Then the medical staff aligns the installation column 61 with the cross-shaped incision, and inserts the installation column 61 and the implant plate 62 into the cross-shaped incision through auxiliary tools. While the installation column 61 is inserted, the implant plate 62 is driven to contact the inner wall of the patient's humerus, and the implant plate 62 drives the cushion block 64 to contact the inner wall of the patient's humerus, and a gap is created between the implant plate 62 and the inner wall of the humerus through the shape of the cushion block 64. The outer surfaces of the implant plate 62 and the cushion block 64 are both provided with a tantalum metal coating. Since tantalum metal has good corrosion resistance, biocompatibility and bone biological activity, the outer surfaces of the implant plate 62 and the cushion block 64 have a corrosion-resistant effect, and will not affect the continued growth of biological tissues at the patient's shoulder joint.

[0045] The push block 1 58 is pressed down while gradually approaching and squeezing the wedge block 1 65. The wedge block 1 65 is forced to slide on the inner wall of the mounting column 61. The wedge block 1 65 slides while pushing the push plate 66 to slide. While the push plate 66 slides, one end approaches and pushes the wedge block 2 67. The wedge block 2 67 is forced to slide and push out on the inner wall of the implant plate 62. When the wedge block 2 67 is pushed out, it drives the support nail 68 to push out and contact the inner wall of the patient's humerus, thereby achieving the fixing effect of the implant plate 62 and the inner wall of the patient's humerus.

[0046] Subsequently, the medical staff aligns the mounting thread 4 at the bottom end of the glenosphere head 3 with the threaded base 51, and then rotates the glenosphere head 3. The rotation of the glenosphere head 3 drives the mounting thread 4 at the bottom end to rotate synchronously. Under the rotation of the mounting thread 4, the connection effect between the glenosphere head 3 and the threaded base 51 is achieved. At the same time, the medical staff fixes the metal glenoid 1 to the patient's shoulder joint through the metal glenoid fixing screw 2, so that one end of the metal glenoid 1 contacts the top surface of the glenosphere head 3, completing the overall installation of the shoulder joint prosthesis.

[0047] By setting an implant plate 62, an opening 63 and a pad 64 are specially provided on the outer surface of the implant plate 62. While ensuring the contact area between the implant plate 62 and the inner wall of the patient's humerus, a gap is formed between the implant plate 62 and the inner wall of the patient's humerus by utilizing the opening 63 and the pad 64. At the same time, the material properties of the tantalum metal coating provided on the surface of the implant plate 62 and the pad 64 are utilized to improve the secondary recovery of the patient's humeral section without affecting the biological activity of the biological tissue at the patient's humeral section, thereby avoiding rejection reaction caused by the implant plate 62 after being implanted into the cross-shaped incision of the patient's humerus. At the same time, by providing linkage cooperation among the wedge block 1 65, the push plate 66 and the wedge block 2 67, after the implant plate 62 is implanted into the cross-shaped incision of the patient's humerus, the wedge block 2 67 is used to drive the support pin 68 to be pushed out, so as to provide secondary support to the inner wall of the patient's humerus, thereby improving the stability of the implant plate 62 after being implanted into the cross-shaped incision of the patient's humerus, thereby avoiding loosening of the implant plate 62 and affecting the implantation effect of the shoulder joint prosthesis.

[0048] The working process of the technical solution of the present invention is as follows:

[0049] First, the medical staff observed and measured the bone condition of the patient's shoulder joint, and then used a cutting tool to cut the proximal part of the patient's humerus to form a cutting surface for the installation of the shoulder joint prosthesis. Then, the medical staff used a positioner to form a cross-shaped incision on the cutting surface of the humerus.

[0050] Then the medical staff aligns the installation column 61 with the cross-shaped incision, and inserts the installation column 61 and the implant plate 62 into the cross-shaped incision through auxiliary tools. While the installation column 61 is inserted, the implant plate 62 is driven to contact the inner wall of the patient's humerus, and the implant plate 62 drives the cushion block 64 to contact the inner wall of the patient's humerus, and a gap is created between the implant plate 62 and the inner wall of the humerus through the shape of the cushion block 64. The outer surfaces of the implant plate 62 and the cushion block 64 are both provided with a tantalum metal coating. Since tantalum metal has good corrosion resistance, biocompatibility and bone biological activity, the outer surfaces of the implant plate 62 and the cushion block 64 have a corrosion-resistant effect, and will not affect the continued growth of biological tissues at the patient's shoulder joint.

[0051] When the installation column 61 and the implant plate 62 are installed, the medical staff aligns the threaded base 51 with the installation column 61, and the threaded base 51 drives the protective cover plate 52 to approach the implant plate 62. Then, the medical staff puts the stud 55 into the threaded base 51, and rotates and presses the stud 55 downward with a tool. When the stud 55 rotates and presses downward, the stud 55 drives the push block 58 at the bottom to rotate and press downward. When the stud 55 rotates, the upper thread 56 and the lower thread 57 are driven to rotate synchronously. Under the rotation of the upper thread 56 and the lower thread 57, the stud 55 is inserted into the implant plate 62. The threaded connection effect between the threaded base 51 and the mounting column 61 is achieved. At this time, the threaded base 51 drives the bottom end of the protective cover plate 52 to contact the top end of the implant plate 62, and the bottom end of the protective cover plate 52 contacts the cut surface of the patient's humerus. Similarly, the tantalum metal coating makes the outer surface of the implant plate 62 and the cushion block 64 corrosion-resistant, and will not affect the biological activity of the biological tissue at the cut surface of the patient's humerus. Subsequently, the medical staff drives the mounting nail 54 into the cut surface of the patient's humerus through the fixing nail hole 53 to achieve the fixing effect between the protective cover plate 52 and the cut surface of the humerus.

[0052] The push block 1 58 is pressed down while gradually approaching and squeezing the wedge block 1 65. The wedge block 1 65 is forced to slide on the inner wall of the mounting column 61. The wedge block 1 65 slides while pushing the push plate 66 to slide. While the push plate 66 slides, one end approaches and pushes the wedge block 2 67. The wedge block 2 67 is forced to slide and push out on the inner wall of the implant plate 62. When the wedge block 2 67 is pushed out, it drives the support nail 68 to push out and contact the inner wall of the patient's humerus, thereby achieving the fixing effect of the implant plate 62 and the inner wall of the patient's humerus.

[0053] Subsequently, the medical staff aligns the mounting thread 4 at the bottom end of the glenosphere head 3 with the threaded base 51, and then rotates the glenosphere head 3. The rotation of the glenosphere head 3 drives the mounting thread 4 at the bottom end to rotate synchronously. Under the rotation of the mounting thread 4, the connection effect between the glenosphere head 3 and the threaded base 51 is achieved. At the same time, the medical staff fixes the metal glenoid 1 to the patient's shoulder joint through the metal glenoid fixing screw 2, so that one end of the metal glenoid 1 contacts the top surface of the glenosphere head 3, completing the overall installation of the shoulder joint prosthesis.

[0054] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0055] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A tantalum-coated anatomical shoulder prosthesis, characterized in that: It comprises a metal shoulder glenoid, a fixing assembly and an implant assembly, wherein one end of the metal shoulder glenoid is provided with a metal shoulder glenoid fixing screw, one end of the metal shoulder glenoid is provided with a shoulder glenosphere head, and the bottom end of the shoulder glenosphere head is provided with a mounting thread one; The mounting thread-inner wall thread sleeve is provided with a fixing component, and the fixing component is used to connect and fix between the glenosphere head and the implant component; The bottom end of the fixing assembly is provided with an implant assembly, and the implant assembly is used to implant a prosthesis base at the humeral head; The implant assembly includes a mounting post, the inner wall of which is connected to the lower thread, and an implant plate is provided on one side of the outer surface of the mounting post; A pad is arranged on the outer surface of the implant plate, the pad is in contact with the inner wall of the humerus, the pad is provided with a corrosion-resistant coating, and the material of the corrosion-resistant coating is set to tantalum metal material; The inner wall of the mounting column is sleeved with a wedge block 1, the top surface of the wedge block 1 is in contact with a push block 1, one end of the wedge block 1 is provided with a push plate, one end of the push plate is in contact with a wedge block 2, the wedge block 2 is nested and arranged on the inner wall of the implant plate, the number of the wedge blocks 2 is set in two groups, the two groups of wedge blocks 2 are arranged on the inner wall of the implant plate opposite to each other, one end of the wedge block 2 is provided with a support nail, and one end of the support nail is in contact with the inner wall of the humerus.

2. The tantalum-coated anatomical shoulder prosthesis according to claim 1, characterized in that: The fixing assembly includes a threaded base, the threaded base is threadedly connected to a mounting thread, and a protective cover plate is sleeved on the outer surface of the threaded base.

3. The tantalum-coated anatomical shoulder joint prosthesis according to claim 2, characterized in that: The bottom surface of the protective cover plate is provided with a corrosion-resistant coating, and the material of the corrosion-resistant coating is set to be tantalum metal material.

4. The tantalum-coated anatomical shoulder joint prosthesis according to claim 2, characterized in that: One side of the protective cover plate is provided with fixing nail holes, the fixing nail holes are arranged at equal angles on one side of the protective cover plate, the angle between the fixing nail holes is set to 90 degrees, and the inner wall of the fixing nail hole is sleeved with installation nails.

5. The tantalum-coated anatomical shoulder joint prosthesis according to claim 2, characterized in that: The inner wall of the threaded base is sleeved with a stud, the upper part of the outer surface of the stud is provided with an upper thread, the upper thread is threadedly connected with the threaded base, the lower part of the outer surface of the stud is provided with a lower thread, and the bottom end of the stud is provided with a push block.

6. The tantalum-coated anatomical shoulder joint prosthesis according to claim 1, characterized in that: The implant plates are arranged at equal angles on the outer surface of the mounting column, the angle between the implant plates is set to 90 degrees, the outer surface of the implant plates is provided with a corrosion-resistant coating, and the material of the corrosion-resistant coating is set to tantalum metal material.

7. The tantalum-coated anatomical shoulder prosthesis according to claim 1, characterized in that: The outer surface of the implant plate is provided with openings therethrough, and the openings are arranged in an array on the outer surface of the implant plate.

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