Composite artificial joint

Abstract

The utility model relates to the technical field of orthopedic medical instruments, in particular to a composite artificial joint which comprises a prosthesis handle body, a connecting piece is fixedly connected to the upper end of the prosthesis handle body, an installation block is fixedly connected to the middle of the upper end of the connecting piece, and a through inserting groove is formed in the middle of the upper end of the installation block. Positioning grooves are formed in the left part, the right part and the rear part of the inner wall of the slot, and a through hole is formed in the front part of the outer surface of the mounting block. According to the composite type artificial joint, the prosthesis ball head and the prosthesis handle body can be conveniently combined and connected, the prosthesis ball heads of different models can be conveniently replaced to correct abnormal joint functions caused by mismatching or faults, a patient can recover normal activity ability, corresponding adjustment can be conducted according to the individual condition of the patient, and the composite type artificial joint is suitable for popularization and application. The artificial joint is better matched with the body of a patient, and meanwhile, the overall service time of the artificial joint can be prolonged by replacing part of assemblies.

Description

Technical Field

[0001] The utility model relates to the technical field of orthopedic medical equipment, in particular to a composite artificial joint. Background Art

[0002] Joints are the hub of human movement. Due to trauma or disease, they may be "scrapped". At this time, doctors often remove the "scrapped" joints and replace them with artificial joints. Human joints are active organs, and artificial joints are all inactive prostheses. Artificial joint replacement is to remove the worn and damaged joint surface and implant an artificial joint like a brace to restore the normal smooth joint surface. Generally speaking, its service life can reach more than 20 years. It can immediately eliminate joint pain and restore the normal movement function of joints, so that people who have been suffering from joint pain for a long time can be reborn. After the operation, they can walk, climb stairs, travel, go out to work, go shopping and exercise like normal people.

[0003] Existing artificial joints are generally composed of a prosthetic stem and a prosthetic ball head. The prosthetic stem and the prosthetic ball head are generally an integrated structure and cannot be assembled or disassembled. It is easy for the prosthesis to mismatch or malfunction, resulting in abnormal joint function. Some components cannot be replaced, which reduces the overall use time of the artificial joint. Therefore, we have introduced a new composite artificial joint. Utility Model Content

[0004] The main purpose of the utility model is to provide a composite artificial joint, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A composite artificial joint comprises a prosthetic handle body, the upper end of the prosthetic handle body is fixedly connected to a connecting plate, the middle part of the upper end of the connecting plate is fixedly connected to a mounting block, the middle part of the upper end of the mounting block is provided with a through slot, the left part of the inner wall of the slot, the right part of the inner wall of the slot and the rear part of the inner wall of the slot are all provided with positioning slots, a through hole is provided on the front of the outer surface of the mounting block, a connecting mechanism is snap-connected in the slot, the upper end of the connecting mechanism is fixedly connected to a connecting block, and the upper end of the connecting block is provided with a prosthetic ball head.

[0007] Preferably, the connecting mechanism includes an insert block, the left part of the outer surface of the insert block, the right part of the outer surface and the rear part of the outer surface are all fixedly connected with positioning bars, a movable groove is opened inside the insert block, four sliding grooves are opened on the inner wall of the movable groove, a spring is fixedly connected to the rear groove wall of the movable groove, the front end of the spring is fixedly connected to a limiting plate, four sliding blocks are fixedly connected to the outer surface of the limiting plate, and the front end of the limiting plate is fixedly connected to a through rod.

[0008] Preferably, the insert block is inserted and connected to the slot, and the outer surface of the insert block is in contact with the inner wall of the slot.

[0009] Preferably, the lower end of the plug block is in contact with the connecting piece, and the upper end of the plug block is fixedly connected to the connecting block, and the three positioning strips are respectively engaged and connected with the three positioning grooves.

[0010] Preferably, the limiting plate is located in the movable groove, and the four sliding blocks are slidably connected to the four sliding grooves respectively.

[0011] Preferably, the penetration rod is connected through an insertion connection with the movable groove, and one end of the penetration rod away from the limiting plate is connected through an insertion connection with the through hole.

[0012] Preferably, the through hole is communicated with the interior of the slot, and the lower end of the connecting block is not in contact with the mounting block.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. By setting a connection mechanism, the connection mechanism is fixed under the connection block, and by pressing the penetration rod, the penetration rod squeezes the spring through the limit plate, and the penetration rod shrinks into the movable groove, and then the insertion block is inserted into the slot, and the penetration rod pops out from the perforation under the elastic reset of the spring, so that the prosthetic ball head is conveniently installed on the prosthetic handle body, and the prosthetic ball head and the prosthetic handle body are conveniently combined and connected, and it is also convenient to replace different types of prosthetic ball heads to correct joint dysfunction caused by mismatch or malfunction, so that the patient can restore normal activity ability, and corresponding adjustments can be made according to the individual situation of the patient, so that the artificial joint fits better with the patient's body, and at the same time, by replacing some components, the overall use time of the artificial joint can be extended;

[0015] 2. When the insert block is inserted into the slot, the three positioning strips are respectively inserted into the three positioning grooves, so that the positions of the through rod and the through hole can correspond to each other, and the through rod can be quickly ejected from the through hole, which can improve the combined connection efficiency of the prosthesis stem and the prosthesis ball head. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a composite artificial joint of the utility model;

[0017] Figure 2 This is a schematic diagram of the disassembled structure of a composite artificial joint of the utility model;

[0018] Figure 3 This is a schematic diagram of the overall structure of a mounting block of a composite artificial joint of the utility model;

[0019] Figure 4 The utility model is a schematic diagram of the overall structure of the connection mechanism of a composite artificial joint.

[0020] In the figure: 1. prosthesis handle; 2. connecting plate; 3. mounting block; 4. slot; 5. positioning slot; 6. through hole; 7. connecting mechanism; 8. connecting block; 9. prosthesis ball head; 10. insert block; 11. positioning strip; 12. movable slot; 13. slide slot; 14. spring; 15. limit plate; 16. slider; 17. through rod. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] See also Figure 1-4 , the utility model provides a technical solution:

[0025] A composite artificial joint comprises a prosthetic handle body 1, a connecting plate 2 is fixedly connected to the upper end of the prosthetic handle body 1, a mounting block 3 is fixedly connected to the middle part of the upper end of the connecting plate 2, a through slot 4 is provided in the middle part of the upper end of the mounting block 3, a positioning slot 5 is provided on the left part of the inner wall of the slot 4, the right part of the inner wall of the slot and the rear part of the inner wall of the slot, a through hole 6 is provided on the front of the outer surface of the mounting block 3, a connecting mechanism 7 is snap-connected in the slot 4, a connecting block 8 is fixedly connected to the upper end of the connecting mechanism 7, and a prosthetic ball head 9 is provided on the upper end of the connecting block 8.

[0026] In this embodiment, the connecting mechanism 7 includes an insert block 10, and the left and right outer surfaces and the rear outer surface of the insert block 10 are fixedly connected with a positioning strip 11, and a movable groove 12 is provided inside the insert block 10, and the inner wall of the movable groove 12 is provided with four sliding grooves 13, and the rear groove wall of the movable groove 12 is fixedly connected with a spring 14, and the front end of the spring 14 is fixedly connected with a limiting plate 15, and the outer surface of the limiting plate 15 is fixedly connected with four sliders 16, and the front end of the limiting plate 15 is fixedly connected with a through rod 17, and the insert block 10 is inserted and connected with the slot 4, and the outer surface of the insert block 10 is close to the inner wall of the slot 4. The insert block 10 is inserted into the slot 4, and the penetration rod 17 pops out from the perforation 6 under the elastic reset of the spring 14, so that the prosthetic ball head 9 can be conveniently installed on the prosthetic handle body 1, so that the prosthetic ball head 9 and the prosthetic handle body 1 can be conveniently combined and connected, and it is also convenient to replace different types of prosthetic ball heads 9 to correct joint dysfunction caused by mismatch or malfunction, so that the patient can restore normal activity ability, and corresponding adjustments can be made according to the individual situation of the patient to make the artificial joint better fit the patient's body. At the same time, by replacing some components, the overall use time of the artificial joint can be extended.

[0027] In this embodiment, the lower end of the insert block 10 is fitted with the connecting piece 2, and the upper end of the insert block 10 is fixedly connected to the connecting block 8, the three positioning strips 11 are respectively engaged with the three positioning grooves 5, the limiting piece 15 is located in the movable groove 12, the four sliding blocks 16 are respectively slidably connected with the four sliding grooves 13, the through rod 17 is inserted and connected with the movable groove 12, and the end of the through rod 17 away from the limiting piece 15 is inserted and connected with the through hole 6, the through hole 6 is connected with the inside of the slot 4, the lower end of the connecting block 8 is not in contact with the mounting block 3, and when the insert block 10 is inserted into the slot 4, the three positioning strips 11 are respectively inserted into the three positioning grooves 5, so that the positions of the through rod 17 and the through hole 6 can correspond, and the through rod 17 can be quickly popped out of the through hole 6, which can improve the combined connection efficiency of the prosthesis handle 1 and the prosthesis ball head 9.

[0028] It should be noted that the utility model is a composite artificial joint. During use, by pressing the penetrating rod 17, the penetrating rod 17 squeezes the spring 14 through the limiting plate 15, and at the same time the penetrating rod 17 shrinks into the movable groove 12, and then the insert block 10 is inserted into the slot 4, and the penetrating rod 17 pops out from the through hole 6 under the elastic reset of the spring 14, so that the prosthetic ball head 9 is conveniently installed on the prosthetic handle body 1. When the insert block 10 is inserted into the slot 4, the three positioning strips 11 are respectively inserted into the three positioning grooves 5, so that the positions of the penetrating rod 17 and the through hole 6 can correspond to each other, and can By making the penetration rod 17 pop out quickly from the perforation 6, the combined connection efficiency of the prosthetic handle body 1 and the prosthetic ball head 9 can be improved. The entire composite artificial joint can be easily combined and connected with the prosthetic ball head 9 and the prosthetic handle body 1, and it is also convenient to replace the prosthetic ball head 9 of different models to correct the joint dysfunction caused by mismatch or failure, so that the patient can restore normal activity ability, and corresponding adjustments can be made according to the individual situation of the patient to make the artificial joint better fit the patient's body. At the same time, by replacing some components, the overall use time of the artificial joint can be extended.

[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A composite artificial joint, comprising a prosthesis handle (1), characterized in that: The upper end of the prosthesis handle (1) is fixedly connected to a connecting piece (2), the middle part of the upper end of the connecting piece (2) is fixedly connected to a mounting block (3), the middle part of the upper end of the mounting block (3) is provided with a through slot (4), the left part of the inner wall of the slot (4), the right part of the inner wall of the slot and the rear part of the inner wall of the slot are all provided with positioning slots (5), the front part of the outer surface of the mounting block (3) is provided with a through hole (6), the slot (4) is snap-connected with a connecting mechanism (7), the upper end of the connecting mechanism (7) is fixedly connected to a connecting block (8), and the upper end of the connecting block (8) is provided with a prosthesis ball head (9); The connecting mechanism (7) comprises an insert block (10), the left part of the outer surface, the right part of the outer surface and the rear part of the outer surface of the insert block (10) are fixedly connected with a positioning strip (11), a movable groove (12) is provided inside the insert block (10), the inner wall of the movable groove (12) is provided with four sliding grooves (13), a spring (14) is fixedly connected to the rear groove wall of the movable groove (12), the front end of the spring (14) is fixedly connected to a limiting plate (15), the outer surface of the limiting plate (15) is fixedly connected with four sliding blocks (16), and the front end of the limiting plate (15) is fixedly connected with a through rod (17).

2. A composite artificial joint according to claim 1, characterized in that: The insert block (10) is inserted and connected with the slot (4), and the outer surface of the insert block (10) is in contact with the inner wall of the slot (4).

3. A composite artificial joint according to claim 1, characterized in that: The lower end of the insert block (10) is fitted with the connecting piece (2), and the upper end of the insert block (10) is fixedly connected with the connecting block (8), and the three positioning strips (11) are respectively engaged and connected with the three positioning grooves (5).

4. A composite artificial joint according to claim 1, characterized in that: The limiting piece (15) is located in the movable groove (12), and the four sliding blocks (16) are slidably connected to the four sliding grooves (13) respectively.

5. The composite artificial joint according to claim 1, characterized in that: The penetration rod (17) is connected to the movable groove (12) through insertion, and one end of the penetration rod (17) away from the limiting plate (15) is connected to the through hole (6) through insertion.

6. The composite artificial joint according to claim 1, characterized in that: The through hole (6) is connected to the inside of the slot (4), and the lower end of the connecting block (8) is not in contact with the mounting block (3).

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