Cup placing mechanism and surgical prosthesis implantation auxiliary tool

Abstract

The utility model provides a cup placing mechanism and a surgical prosthesis implantation auxiliary tool. The cup placing mechanism comprises a cup placing rod shaft and a switching part arranged at one end of the cup placing rod shaft, wherein the cup placing rod shaft is provided with an adapting groove and an unlocking groove penetrating through the groove wall of the adapting groove, one end of the adapting part is provided with a threaded part used for being in threaded connection with a prosthesis implant, the other end of the adapting part is provided with an inserting part used for being inserted into the adapting groove, and the inserting part is provided with a locking groove; the unlocking groove is provided with a switching part button and a switching part elastic piece. The switching part button is provided with a limiting protrusion used for being clamped into the locking groove to limit the insertion part. The switching part elastic piece is connected with the switching part button and used for driving the limiting protrusion to be clamped into the locking groove. And the limiting bulge can be separated from the locking groove when the switching part button is pressed down, so that the insertion part can be separated from the switching groove. By the adoption of the technical scheme, the cup placing mechanism can be compatible with prosthesis implants of different manufacturers, and meanwhile high-efficiency disassembly and assembly of the prosthesis implants are achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of surgical prosthesis implantation auxiliary tools, and more specifically, to a cup placement mechanism and a surgical prosthesis implantation auxiliary tool. Background Technology

[0002] Orthopedic surgical robots require high positioning accuracy and more efficient and precise surgical aids. In hip replacement surgery, precise reaming of the pelvis and acetabulum, as well as precise implantation of the acetabular prosthesis, are necessary. Both acetabular reaming and prosthesis implantation are performed using the same base. Different acetabular reaming and implantation instruments are required for patients of varying weights. Different manufacturers' acetabular prostheses have different acetabular cup connection thread specifications, necessitating implantation instruments with different thread specifications. Furthermore, the surgical process using an orthopedic surgical robot should be monitorable and controllable. Therefore, to meet these requirements, the following requirements are set for hip replacement surgical aids: 1) The product's functional components must allow for rapid replacement to reduce surgical time and improve surgical quality; 2) The product structure must be simple and effective, ensuring portability and ease of use; 3) The product must possess sufficient rigidity and stability to guarantee its performance; 4) It must be compatible with hip prostheses from different manufacturers, enabling a wider range of applications for orthopedic surgical robots. Utility Model Content

[0003] The purpose of this invention is to provide a cup placement mechanism and a surgical prosthesis implantation aid to solve the technical problems of low efficiency and poor applicability of surgical aids in replacing functional components.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] Firstly, a cup-holding mechanism is provided, comprising:

[0006] The device includes a cup-positioning rod shaft and an adapter portion located at one end of the cup-positioning rod shaft. The cup-positioning rod shaft has an adapter groove and an unlocking groove extending through the groove wall. One end of the adapter portion has a threaded portion for threaded connection with a prosthetic implant, and the other end of the adapter portion has an insertion portion for insertion into the adapter groove. The insertion portion has a locking groove. The unlocking groove includes an adapter button and an adapter elastic element. The adapter button has a limiting protrusion for engaging with the locking groove to limit the insertion portion. The adapter elastic element is connected to the adapter button and drives the limiting protrusion into the locking groove. The limiting protrusion can disengage from the locking groove when the adapter button is pressed, allowing the insertion portion to disengage from the adapter groove.

[0007] By adopting the above technical solution, the cup placement mechanism is equipped with an adapter, one end of which is detachably connected to the cup placement rod shaft, and the other end is threadedly connected to the prosthesis implant. This allows the cup placement mechanism to be compatible with prostheses (hip joint prostheses) from different manufacturers, enabling the orthopedic surgical robot to have a wider range of applications. In addition, the cup placement mechanism uses a button on the adapter to unlock the adapter, which makes the installation and removal of the prosthesis implant highly efficient.

[0008] In one embodiment, the unlocking slot is further provided with a button limiting pin for limiting the transition part button. The button limiting pin is movably connected to the transition part button, so that the transition part button can move within a preset range.

[0009] By adopting the above technical solution, the adapter button can be installed in the unlocking slot, reducing the risk of the adapter button coming off.

[0010] In one embodiment, the cup-setting mechanism further includes a striking part, which is located at the end of the cup-setting rod shaft opposite to the adapter, and the striking part is coaxially arranged with the cup-setting rod shaft.

[0011] By adopting the above technical solution, the force applied by the doctor can be transmitted sequentially from the striking part, the cup-placement rod shaft, and the adapter part to the prosthesis implant.

[0012] In one embodiment, the striking part is provided with a striking part button for locking the cup-holding rod shaft and a striking part elastic member. The striking part elastic member is used to drive the striking part button to limit the cup-holding rod shaft to lock the connection between the cup-holding rod shaft and the striking part. The striking part can disengage from the cup-holding rod shaft when the striking part button is pressed.

[0013] By adopting the above technical solution, it is beneficial to install the cup placement mechanism and the guide.

[0014] In one embodiment, the cup-placement rod shaft is provided with a sliding sleeve for limiting connection with the guide, the sliding sleeve is sleeved on the cup-placement rod shaft, and the cup-placement rod shaft can slide relative to the sliding sleeve.

[0015] By adopting the above technical solution, the positioning of the guide is facilitated. At the same time, when the striking part transmits the striking force, it can drive the cup rod shaft to move relative to the sliding sleeve, which is conducive to the implantation of the prosthesis.

[0016] In one embodiment, the cup-placement rod shaft is defined with an insertion position and a reset position, and a cup-placement rod shaft reset member is provided between the sliding sleeve and the cup-placement rod shaft. The cup-placement rod shaft reset member is used to drive the cup-placement rod shaft to move to the reset position.

[0017] By adopting the above technical solution, it is beneficial for the cup placement mechanism to be positioned during the operation and for the doctor to operate the cup placement mechanism.

[0018] In one embodiment, the sliding sleeve is provided with a limiting face for limiting connection with the guide, the limiting face being arranged in a direction close to the transition portion.

[0019] By adopting the above technical solution, the assembly and connection of the sliding sleeve and the guide were realized.

[0020] In one embodiment, the cup-placement mechanism further includes a cup-placement curved arm, which connects the cup-placement rod shaft and the adapter, and the cup-placement curved arm is bent.

[0021] By adopting the above technical solution, the bending cup operation was realized.

[0022] In one embodiment, the cup-holding arm has a rod inside, one end of which is connected to the adapter, and the other end of which has a handle.

[0023] By adopting the above technical solution, the bending cup mechanism has a simple structure and is easy to manufacture.

[0024] Secondly, a surgical prosthesis implantation aid is provided, including a guide and the aforementioned cup placement mechanism, wherein the guide is disposed on the cup placement mechanism.

[0025] By adopting the above technical solution, in addition to the advantages of the cup placement mechanism in the above embodiments, the surgical prosthesis implantation auxiliary tool of this embodiment also has the advantages of high efficiency in disassembling and assembling prostheses and high applicability. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a front view of the upright cup mechanism provided in this embodiment of the utility model.

[0028] Figure 2 This is a cross-sectional view of the upright cup mechanism provided in this embodiment of the utility model.

[0029] Figure 3 yes Figure 2 Enlarged view of section "A" in the image.

[0030] Figure 4 yes Figure 2 Enlarged view of section "B" in the image.

[0031] Figure 5 yes Figure 2 Enlarged view of point "C" in the image.

[0032] Figure 6 This is a front view of the bent cup mechanism provided in this embodiment of the utility model.

[0033] Figure 7 This is a cross-sectional view of the bent cup mechanism provided in this embodiment of the utility model.

[0034] The labels for the attached figures are as follows:

[0035] 1. Cup holder shaft; 2. Adapter; 3. Implant; 4. Impact part; 5. Sliding sleeve; 6. Cup holder shaft reset part; 7. Cup holder curved arm;

[0036] 11. Adapter groove; 12. Unlocking groove; 21. Threaded part; 22. Insertion part; 41. Strike button; 42. Strike elastic element; 51. Limiting surface; 71. Rod body; 72. Handle; 73. Rod body fixing sleeve;

[0037] 221. Locking groove; 121. Adapter button; 122. Adapter elastic element; 123. Button limit pin; 1211. Limit protrusion. Detailed Implementation

[0038] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0039] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be located directly on or indirectly on the other component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to the other component.

[0040] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating relative importance or the number of technical features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. The specific implementation of this utility model is described in more detail below with reference to specific embodiments:

[0042] like Figures 1 to 3 As shown in the illustration, this utility model provides a cup placement mechanism for implanting a prosthesis into a patient's acetabulum. The cup placement mechanism provided in this embodiment is highly adaptable and can be used with various models and specifications of prostheses. Specifically, prostheses come in various models and specifications, each with different connecting threads and adapters. When using different models and specifications of prostheses, the cup placement mechanism can be effectively connected to the prosthesis by replacing the corresponding adapter. The following detailed description illustrates the specific implementation method:

[0043] The cup-holding mechanism provided in this embodiment includes:

[0044] The device includes a cup-mounting rod shaft 1 and a connecting part 2 located at one end of the cup-mounting rod shaft 1. The cup-mounting rod shaft 1 has a connecting groove 11 and an unlocking groove 12 that penetrates the groove wall of the connecting groove 11. One end of the connecting part 2 has a threaded part 21 for threaded connection with the implant 3. The other end of the connecting part 2 has an insertion part 22 for insertion into the connecting groove 11. The insertion part 22 has a locking groove 221. The unlocking groove 12 has a connecting part button 121 and a connecting part elastic member 122. The connecting part button 121 has a limiting protrusion 1211 for engaging with the locking groove 221 to limit the insertion part 22. The connecting part elastic member 122 is connected to the connecting part button 121 and is used to drive the limiting protrusion 1211 into the locking groove 221. The limiting protrusion 1211 can disengage from the locking groove 221 when the connecting part button 121 is pressed, so that the insertion part 22 can disengage from the connecting groove 11.

[0045] Here, it can be understood that the cup-placement rod shaft 1 refers to the shaft part in the cup-placement mechanism; the cup-placement rod shaft 1 is used to transmit power; wherein, the cup-placement rod shaft 1 is provided with a transition groove 11 and an unlocking groove 12, the transition groove 11 is opened on the cup-placement rod shaft 1, and the unlocking groove 12 is also opened on the cup-placement rod shaft 1 and is provided through the transition groove 11;

[0046] The adapter 2 is a component used for connecting the prosthetic implant 3; the adapter 2 connects the prosthetic implant 3 and the cup-mounting rod 1, so that the prosthetic implant 3 can be fixed on the cup-mounting rod 1; the adapter 2 is located at one end of the cup-mounting rod 1; the adapter 2 has two opposing ends, one end of which is provided with a threaded portion 21 for threaded connection with the prosthetic implant 3, and the other end is provided with an insertion portion 22 for insertion into the adapter groove 11, the insertion portion 22 being provided with a locking groove 221; the unlocking groove 12 is provided with an adapter button 121 and an adapter elastic element 122; wherein, the adapter button 121 is provided with a limiting protrusion 1211 for engaging with the locking groove 221, when the limiting protrusion 1211 engages with the locking groove 221. When the fixed groove 221 is in place, the limiting protrusion 1211 moves the limiting insertion part 22, thereby fixing the adapter 2 onto the cup rod shaft 1; the adapter elastic member 122 is connected to the adapter button 121, and the adapter elastic member 122 is used to drive the limiting protrusion 1211 into the locking groove 221. Specifically, the elastic force of the adapter elastic member 122 can drive the limiting protrusion 1211 of the adapter button 121 into the locking groove 221; in addition, when the adapter button 121 is pressed, the adapter button 121 drives the limiting protrusion 1211 to disengage from the locking groove 221. At this time, the limiting protrusion 1211 no longer limits the insertion part 22, thereby unlocking the adapter 2 and realizing the replacement of the adapter 2 and the prosthetic implant 3.

[0047] The working principle of the cup-placement mechanism provided in this embodiment is as follows:

[0048] First, select the corresponding adapter 2 according to the model and specifications of the implant 3. Specifically, different implants 3 correspond to adapters 2 with different threaded portions 21. Second, after threading the implant 3 to the corresponding adapter 2, insert the insertion portion 22 of the adapter 2 into the adapter groove 11. At the same time, the elastic force of the adapter elastic element 122 drives the adapter button 121 to drive the limiting protrusion 1211 to engage in the locking groove 221 of the insertion portion 22. In this way, the adapter 2 and the cup rod shaft 1 are fixedly connected. Finally, the user can press the adapter button 121. In this way, the adapter button 121 drives the limiting protrusion 1211 to disengage from the locking groove 221, so that the limiting protrusion 1211 no longer limits the insertion portion 22, thereby unlocking the adapter 2 and realizing the replacement of the adapter 2 and the implant 3.

[0049] By adopting the above technical solution, the cup placement mechanism is provided with a connecting part 2, one end of which is detachably connected to the cup placement rod shaft 1, and the other end is threadedly connected to the prosthesis implant 3. This allows the cup placement mechanism to be compatible with prostheses 3 (hip joint prostheses) from different manufacturers, thus enabling the orthopedic surgical robot to have a wider range of applications. In addition, the cup placement mechanism uses the connecting part button 121 to unlock the connecting part 2, which makes the disassembly and assembly of the prosthesis implant 3 highly efficient.

[0050] In one embodiment, the unlocking slot 12 is further provided with a button limiting pin 123 for limiting the transition button 121. The button limiting pin 123 is movably connected to the transition button 121, so that the transition button 121 can move within a preset range.

[0051] Here, it can be understood that the button limit pin 123 refers to the component used to limit the transition part button 121; wherein, the button limit pin 123 is provided in the unlocking groove 12, and the button limit pin 123 is movably connected to the transition part button 121, so that the transition part button 121 can move within a preset range, thereby preventing the transition part button 121 from coming out of the unlocking groove 12.

[0052] By adopting the above technical solution, the adapter button 121 can be installed in the unlocking slot 12, reducing the risk of the adapter button 121 coming off.

[0053] Please refer to the following: Figure 4 In one embodiment, the cup-setting mechanism further includes a striking part 4, which is located at one end of the cup-setting rod shaft 1 away from the connecting part 2, and the striking part 4 is coaxially arranged with the cup-setting rod shaft 1.

[0054] Here, it can be understood that the striking part 4 refers to the component used for striking by the doctor; after being struck by the doctor, the striking part 4 transmits the force generated by the strike to the adapter part 2 through the cup rod shaft 1, and then from the adapter part 2 to the prosthesis implant 3, thereby realizing the implantation of the prosthesis implant 3; the striking part 4 is located at the end of the cup rod shaft 1 opposite to the adapter part 2, and the striking part 4 is coaxially arranged with the cup rod shaft 1.

[0055] By adopting the above technical solution, the force applied by the doctor is transmitted sequentially from the striking part 4, the cup rod shaft 1 and the adapter part 2 to the prosthetic implant 3.

[0056] In one embodiment, the striking part 4 is provided with a striking part button 41 for locking the cup rod shaft 1 and a striking part elastic member 42. The striking part elastic member 42 is used to drive the striking part button 41 to limit the position of the cup rod shaft 1 to lock the connection between the cup rod shaft 1 and the striking part 4. The striking part 4 can disengage from the cup rod shaft 1 when the striking part button 41 is pressed.

[0057] Here, it is understood that the striking part 4 can be detached from the cup-holding rod shaft 1, so that the cup-holding rod shaft 1 can be inserted into the guide to achieve connection with the guide, and then the striking part 4 can be installed on the cup-holding rod shaft 1.

[0058] Specifically, the end of the cup rod shaft 1 is connected to the striking part 4. The end of the cup rod shaft 1 is inserted into the striking part 4 and automatically locked. Pressing the striking part button 41 unlocks and removes the striking part 4. The striking part elastic element 42 provides locking force. Pressing the striking part button 41 limits the striking part 4 so that it cannot come out.

[0059] By adopting the above technical solution, it is beneficial to install the cup placement mechanism and the guide.

[0060] Please refer to the following: Figure 5 In one embodiment, the cup-placement rod shaft 1 is provided with a sliding sleeve 5 for limiting connection with the guide. The sliding sleeve 5 is sleeved on the cup-placement rod shaft 1, and the cup-placement rod shaft 1 can slide relative to the sliding sleeve 5.

[0061] Here, it can be understood that the sliding sleeve 5 refers to the component used to realize the sliding of the cup-holding rod shaft 1 relative to the guide; the sliding sleeve 5 is used to limit the connection with the guide, and at the same time, the sliding sleeve 5 is sleeved on the cup-holding rod shaft 1, so that the cup-holding rod shaft 1 can slide relative to the sliding sleeve 5, thus realizing the relative sliding of the cup-holding rod shaft 1 and the guide.

[0062] By adopting the above technical solution, the positioning of the guide is facilitated. At the same time, when the striking part 4 transmits the striking force, it can drive the cup rod shaft 1 to move relative to the sliding sleeve 5, which is conducive to the implantation of the prosthesis 3.

[0063] In one embodiment, the cup-setting rod shaft 1 is defined with an insertion position and a reset position. A cup-setting rod shaft reset member 6 is provided between the sliding sleeve 5 and the cup-setting rod shaft 1. The cup-setting rod shaft reset member 6 is used to drive the cup-setting rod shaft 1 to move to the reset position.

[0064] Here, it can be understood that the cup-mounted rod 1 is defined with an insertion position and a reset position, which are set relative to each other. The insertion position corresponds to the position where the prosthesis implant 3 is inserted into the acetabulum, and the reset position corresponds to the position where the prosthesis implant 3 is dislodged from the acetabulum. The cup-mounted rod reset component 6 is used to drive the cup-mounted rod 1 to move to the reset position or maintain it in the reset position. The cup-mounted rod reset component 6 includes, but is not limited to, an elastic component, which can provide elastic force to the cup-mounted rod 1 so that the cup-mounted rod 1 can move from the insertion position to the reset position for the next strike by the physician.

[0065] Specifically, when there is no external force in the axial direction of the cup rod shaft 1, the cup rod shaft reset piece 6 applies an axial elastic force, so that the cup rod shaft 1 does not move axially. When the cup rod shaft reset piece 6 applies an axially forward external force, the cup rod shaft 1 slides in the axial direction, the cup rod shaft reset piece 6 is stretched, and the elastic force applied by the cup rod shaft reset piece 6 of the sliding sleeve 5 increases. When the external force is removed, the cup rod shaft reset piece 6 drives the cup rod shaft 1 to reset.

[0066] By adopting the above technical solution, it is easier for medical personnel to operate the cup placement mechanism.

[0067] In one embodiment, the sliding sleeve 5 is provided with a limiting cut surface 51 for limiting connection with the guide, and the limiting cut surface 51 is arranged in a direction close to the adapter 2.

[0068] Here, it can be understood that when the cup-holding rod 1 is assembled with the guide, the tail end of the cup-holding rod 1 is inserted into the front end of the guide. After it is in place, the limiting end face of the cup-holding rod 1 is close to the front end of the guide. Pulling the sliding sleeve 5 backward causes the limiting tangent 51 of the sliding sleeve 5 to contact the locking cylindrical pin of the end guide, and the two lock together.

[0069] By adopting the above technical solution, the assembly and connection between the sliding sleeve 5 and the guide was realized.

[0070] Please refer to the following: Figure 6 and Figure 7 In one embodiment, the cup-placement mechanism further includes a cup-placement curved arm 7, which connects the cup-placement rod shaft 1 and the adapter 2. The cup-placement curved arm 7 is bent.

[0071] It is understood here that the cup-placement mechanism in this embodiment is a curved cup-placement mechanism. The cup-placement mechanism in the aforementioned embodiment was a straight cup-placement mechanism.

[0072] By adopting the above technical solution, the bending cup operation was realized.

[0073] In one embodiment, the cup-holding arm 7 has a rod 71 inside, one end of the rod 71 is connected to the adapter 2, and the other end of the rod 71 has a handle 72.

[0074] Here, it can be understood that the cup-placement bending arm 7 of the cup-placement mechanism is connected to a curved adapter 2. The adapter 2 is automatically locked when inserted into the front end of the cup-placement bending arm 7. Pressing the adapter button 121 removes the arm. The elastic element 122 of the adapter provides a locking force to the adapter button 121. The button limit pin 123 limits the adapter button 121 to prevent it from coming out. The cup-placement bending arm 7 is fixedly connected to a rod fixing sleeve 73, which provides support for the rod 71. The rod 71 can rotate radially within the rod fixing sleeve 73. One end of the rod 71 is connected to a flat handle 72 to increase the rotational torque of the rod 71. The other end is a ball-head T-shaped shaft, which cooperates with the inserted adapter 2 to provide rotational torque to the adapter 2. Tightening the threaded connection between the adapter 2 and the implant 3 secures the adapter 2. The other end of the cup-placement bending arm 7 is fixedly connected to the cup-placement rod shaft 1 using screws for shaft hole fixing. The tail end of the cup-holding rod shaft 1 is inserted into the front end of the guide. After it is in place, the limiting end face of the cup-holding rod shaft 1 is close to the front end of the guide. Pulling the sliding sleeve 5 backward, the limiting tangent 51 of the sliding sleeve 5 contacts the locking cylindrical pin of the guide, and the two lock together. When there is no external force in the axial direction of the cup-holding rod shaft 1, the cup-holding rod shaft reset piece 6 applies a spring force in the axial direction, and the cup-holding rod shaft 1 does not move axially. When an external force is applied in the axial direction forward, the cup-holding rod shaft 1 slides in the axial direction, causing the cup-holding rod shaft reset piece 6 to extend and the spring force applied on the sliding sleeve 5 to increase. When the external force is removed, the cup-holding rod shaft 1 resets. The tail end of the cup-holding rod shaft 1 is connected to the striking part 4. The tail end of the cup-holding rod shaft 1 is automatically locked when inserted into the striking part 4. Pressing the striking part button 41 unlocks and removes it.

[0075] By adopting the above technical solution, the bending cup mechanism has a simple structure and is easy to manufacture.

[0076] Secondly, a surgical prosthesis implantation aid is provided, including a guide and the aforementioned cup placement mechanism, wherein the guide is disposed on the cup placement mechanism.

[0077] By adopting the above technical solution, based on the advantages of the cup placement mechanism in the above embodiments, the surgical prosthesis implantation auxiliary tool of this embodiment also has the advantages of high efficiency in disassembling and assembling the prosthesis implant 3 and high applicability.

[0078] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cup-holding mechanism, characterized in that, include: The device includes a cup-positioning rod shaft and an adapter portion located at one end of the cup-positioning rod shaft. The cup-positioning rod shaft has an adapter groove and an unlocking groove extending through the groove wall. One end of the adapter portion has a threaded portion for threaded connection with a prosthetic implant. The other end of the adapter portion has an insertion portion for insertion into the adapter groove. The insertion portion has a locking groove. The unlocking groove has an adapter button and an adapter elastic element. The adapter button has a limiting protrusion for engaging with the locking groove to limit the insertion portion. The adapter elastic element is connected to the adapter button and drives the limiting protrusion to engage with the locking groove. The limiting protrusion can disengage from the locking groove when the button of the adapter is pressed, allowing the insertion part to disengage from the adapter groove.

2. The cup-placement mechanism as described in claim 1, characterized in that, The unlocking slot is also provided with a button limiting pin for limiting the button of the adapter part. The button limiting pin is movably connected to the button of the adapter part, so that the button of the adapter part can move within a preset range.

3. The cup-placement mechanism as described in claim 1, characterized in that, The cup-setting mechanism also includes a striking part, which is located at the end of the cup-setting rod shaft opposite to the adapter, and the striking part is coaxially arranged with the cup-setting rod shaft.

4. The cup-placement mechanism as described in claim 3, characterized in that, The striking part is provided with a striking part button for locking the cup-holding rod shaft and a striking part elastic element. The striking part elastic element is used to drive the striking part button to limit the cup-holding rod shaft to lock the connection between the cup-holding rod shaft and the striking part. The striking part can disengage from the cup-holding rod shaft when the striking part button is pressed.

5. The cup-placement mechanism as described in claim 3, characterized in that, The cup-placement rod shaft is provided with a sliding sleeve for limiting connection with the guide. The sliding sleeve is sleeved on the cup-placement rod shaft, and the cup-placement rod shaft can slide relative to the sliding sleeve.

6. The cup-placement mechanism as described in claim 5, characterized in that, The cup-placement rod shaft is defined with an insertion position and a reset position. A cup-placement rod shaft reset component is provided between the sliding sleeve and the cup-placement rod shaft. The cup-placement rod shaft reset component is used to drive the cup-placement rod shaft to move to the reset position.

7. The cup-placement mechanism as described in claim 5, characterized in that, The sliding sleeve is provided with a limiting cut surface for limiting connection with the guide, and the limiting cut surface is arranged in a direction close to the transition part.

8. The cup-placement mechanism as described in claim 1, characterized in that, The cup-placement mechanism further includes a cup-placement curved arm, which connects the cup-placement rod shaft and the adapter, and the cup-placement curved arm is bent.

9. The cup-placement mechanism as described in claim 8, characterized in that, The cup-holding arm has a rod inside, one end of which is connected to the adapter, and the other end of which has a handle.

10. A surgical prosthesis implantation aid, characterized in that, It includes a guide and a cup-placement mechanism as described in any one of claims 1 to 9, wherein the guide is disposed on the cup-placement mechanism.

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