Prosthesis, prosthesis installer and prosthesis implantation system

Abstract

The invention discloses a prosthesis, a prosthesis installer and a prosthesis implantation system.The prosthesis installer comprises an installation assembly and a driving assembly, the installation assembly comprises a supporting piece and a connecting structure, and the connecting structure is arranged at one end, in the first direction, of the supporting piece and comprises a connecting part used for being inserted into an installation hole of the prosthesis; the driving assembly is arranged on the supporting piece and used for driving the connecting part to move between the opening position and the folding position, the connecting part is inserted into the mounting hole and can abut against the inner circumferential face of the mounting hole when located at the opening position, and therefore the connecting structure and the prosthesis are relatively fixed and can drive the prosthesis to move; the connecting part is inserted into the mounting hole and can be separated from the inner circumferential surface of the mounting hole and separated from the mounting hole when in the folding position, so that the connecting structure is separated from the prosthesis. According to the prosthesis, the prosthesis installer and the prosthesis implantation system provided by the embodiment of the invention, the problem that the prosthesis is easily driven to generate displacement in a skeleton in the process of separating the prosthesis installer from the prosthesis can be solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a prosthesis, a prosthesis installer and a prosthesis implantation system. BACKGROUND

[0002] In the existing orthopedic surgery, when the surgical staff implants the prosthesis into the bone, the prosthesis installer is usually screwed with the prosthesis, and then the prosthesis installer is installed into the bone filled with bone cement. After the prosthesis is installed in place, the prosthesis installer is separated from the prosthesis, so that the prosthesis remains in the bone. However, in the process of separating the prosthesis installer from the prosthesis, the prosthesis installer needs to be rotated relative to the prosthesis to make the prosthesis installer disengage from the threaded engagement with the prosthesis, which is likely to cause the prosthesis installer to drive the prosthesis to rotate and displace in the bone, resulting in inaccurate positioning of the prosthesis. SUMMARY

[0003] The embodiments of the present application provide a prosthesis, a prosthesis installer and a prosthesis implantation system, aiming to solve the problem that the prosthesis installer is likely to drive the prosthesis to displace in the bone in the process of separating the prosthesis installer from the prosthesis.

[0004] In a first aspect, the embodiments of the present application provide a prosthesis installer, comprising:

[0005] The installation assembly comprises a support and a connecting structure, the connecting structure is arranged at one end of the support along a first direction, the connecting structure comprises a connecting part, the connecting part is used for being inserted into a mounting hole of a prosthesis and is movable relative to the support between an expanded position and a contracted position, the connecting part inserted into the mounting hole and at the expanded position can abut against an inner circumferential surface of the mounting hole, so that the connecting structure is relatively fixed with the prosthesis and can drive the prosthesis to move; the connecting part inserted into the mounting hole and at the contracted position can be separated from the inner circumferential surface of the mounting hole and disengaged from the mounting hole, so that the connecting structure is separated from the prosthesis;

[0006] The driving assembly is arranged at the support, and is used for driving the connecting part to move between the expanded position and the contracted position.

[0007] The connecting structure further comprises a protection part, the protection part is internally provided with an accommodation space, and the connecting part at the contracted position is at least partially retracted into the accommodation space, so that the protection part protects the connecting part

[0008] In a second aspect, the embodiments of the present application provide a prosthesis installer, comprising:

[0009] The mounting assembly comprises a support and a connecting structure, the connecting structure is arranged at one end of the support along a first direction, the connecting structure comprises a connecting part, the connecting part is used for being inserted into a mounting hole of a prosthesis, and the connecting part is movable relative to the support between an expansion position and a contraction position, when the connecting part is inserted into the mounting hole and is at the expansion position, the connecting part can abut against an inner circumferential surface of the mounting hole, so that the connecting structure is relatively fixed with the prosthesis and can drive the prosthesis to move; when the connecting part is inserted into the mounting hole and is at the contraction position, the connecting part can be separated from the inner circumferential surface of the mounting hole and is out of the mounting hole, so that the connecting structure is separated from the prosthesis;

[0010] The driving assembly is arranged on the support, and is used for driving the connecting part to move between the expansion position and the contraction position, before the connecting part is inserted into the mounting hole, the driving assembly does not need to be operated, so that the connecting part is inserted into the mounting hole when the connecting part is at the contraction position; after the connecting part is inserted into the mounting hole, the driving assembly is operated to drive the connecting part to move from the contraction position to the expansion position.

[0011] The connecting structure further comprises a protection part, the protection part is internally provided with an accommodation space, and the connecting part is at least partially retracted into the accommodation space when the connecting part is at the contraction position, so that the protection part protects the connecting part.

[0012] In a third aspect, an embodiment of the present application provides a prosthesis mounting device, comprising:

[0013] The mounting assembly comprises a support and a connecting structure, the connecting structure is arranged at one end of the support along a first direction, the connecting structure comprises a connecting part, the connecting part is used for being inserted into a mounting hole of a prosthesis, and the connecting part is movable relative to the support between an expansion position and a contraction position, when the connecting part is inserted into the mounting hole and is at the expansion position, the connecting part can abut against an inner circumferential surface of the mounting hole, so that the connecting structure is relatively fixed with the prosthesis and can drive the prosthesis to move; when the connecting part is inserted into the mounting hole and is at the contraction position, the connecting part can be separated from the inner circumferential surface of the mounting hole and is out of the mounting hole, so that the connecting structure is separated from the prosthesis;

[0014] A drive assembly includes a transmission member and a drive mechanism disposed on the support member. The drive mechanism is connected to the transmission member and is used to drive the transmission member to move between a first position and a second position. The transmission member is rotatably connected to at least one connecting portion that can move between the extended position and the retracted position. When the transmission member moves from the first position to the second position, it drives at least one connecting portion to move from the retracted position to the extended position. When the transmission member moves from the second position to the first position, it drives the two connecting portions to move from the extended position to the retracted position.

[0015] Fourthly, embodiments of this application provide a prosthesis, the prosthesis including a mounting hole for inserting a connecting structure of a prosthesis installer, so that the connecting structure is relatively fixed to the prosthesis and can drive the prosthesis to move; the mounting hole forms an opening on the surface of the prosthesis for inserting the connecting structure, at least a portion of the inner circumferential surface of the mounting hole is a part of a second conical surface, and the diameter of the second conical surface gradually decreases from the bottom surface of the mounting hole to the opening.

[0016] Fifthly, embodiments of this application provide a prosthesis implantation system, including a prosthesis installer and a prosthesis, wherein the prosthesis installer is used to connect to the prosthesis and to move the prosthesis; wherein the prosthesis installer includes the prosthesis installer described above, and / or the prosthesis includes the prosthesis described above.

[0017] The prosthesis installer provided in this application uses a drive component to drive the connecting part of the connecting structure to move between an open position and a closed position. When the connecting part is inserted into the mounting hole and is in the open position, it can abut against the inner circumferential surface of the mounting hole, so that the connecting structure is relatively fixed to the prosthesis and can drive the prosthesis to move. When the connecting part is inserted into the mounting hole and is in the closed position, it can separate from the inner circumferential surface of the mounting hole and dislodge from the mounting hole, so that the connecting structure is separated from the prosthesis.

[0018] Specifically, when the connecting structure detaches from the mounting hole of the prosthesis, it does not exert a rotational force on the prosthesis, thus avoiding the problem of rotational displacement of the prosthesis relative to the bone under the action of rotational force when the connecting structure separates from the prosthesis. In addition, the inner circumferential surface of the mounting hole does not need to be provided with a threaded structure, which can avoid the formation of sharp corners on the prosthesis and thus affect the fatigue strength of the prosthesis.

[0019] Finally, by ensuring that the connecting part of the connection structure is at least partially retracted into the receiving space when it is in the retracted position, the protective part protects the connecting part and reduces the risk of deformation or even damage to the connecting part under the impact force of the impactor. Attached Figure Description

[0020] The technical solution and other beneficial effects of this application will become apparent from the following detailed description of specific embodiments in conjunction with the accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the structure of one embodiment of the prosthesis implantation system provided in this application, wherein a portion of the prosthesis implantation system is shown in cross-section;

[0022] Figure 2 for Figure 1 An enlarged view of point A, showing the locking element in the unlocked position;

[0023] Figure 3 A schematic diagram of the locking element when it is in the locked position;

[0024] Figure 4 A schematic diagram of one embodiment of the connection structure provided in this application;

[0025] Figure 5 for Figure 4 Another angle view of the connecting structure;

[0026] Figure 6 A cross-sectional view of one embodiment of the connection structure provided in this application, wherein the cross-section is taken along a first direction;

[0027] Figure 7 This is a cross-sectional view of an embodiment of the connection structure and transmission component provided in this application, wherein the cross-section is taken along a first direction, the transmission component is in a first position, and the connection portion is in a retracted position;

[0028] Figure 8 for Figure 7 A schematic diagram of the structure when the central transmission component is in the second position and the connecting part is in the open position;

[0029] Figure 9 This is a cross-sectional view of another embodiment of the connection structure and transmission component provided in this application, wherein the cross-section is taken along a first direction, the transmission component is in a first position, and the connection portion is in a retracted position;

[0030] Figure 10 for Figure 9 A schematic diagram of the structure when the central transmission component is in the second position and the connecting part is in the open position;

[0031] Figure 11 A schematic diagram of another embodiment of the prosthesis implantation system provided in this application;

[0032] Figure 12 for Figure 11 A cross-sectional view of a prosthesis implantation system, wherein the cross-section is taken along a first direction;

[0033] Figure 13 A schematic diagram of the structure of one embodiment of the connecting portion provided in this application;

[0034] Figure 14 A schematic diagram of the mating structure of two connecting parts of the connection structure provided in the embodiment of this application, wherein the two connecting parts are in the retracted position;

[0035] Figure 15 for Figure 14 A schematic diagram of the structure when the two connecting parts are in the extended position;

[0036] Figure 16 A schematic diagram of the structure of one embodiment of the prosthesis provided in this application;

[0037] Figure 17 for Figure 16 A sectional view of the prosthesis, wherein the section is taken along the length of the handle;

[0038] Figure 18 for Figure 16 Top view of the prosthesis.

[0039] 1. Implant system; 10. Implant mounter; 11. Mounting assembly; 111. Support; 1111. Sliding hole; 12. Connecting structure; 121. Body; 1211. Abutment; 122. Connecting part; 1221. Free end; 1222. Abutment surface; 1223. Strip hole; 1224. Protective part; 123. Accommodating space; 1231. First protective section; 1232. Second protective section; 1233. Positioning part; 124. Clearance hole; 125. Abutment protrusion; 126. Guide surface; 1261. Second elastic element; 13. Hinge shaft; 14. Drive assembly; 15. Transmission element; 151. Second locking part; 151 1; Hook groove 1512; Drive mechanism 152; Drive handle 1521; Drive rod 1522; Adjustment knob 1523; Drive shaft 153; Connecting shaft 154; Locking assembly 16; Locking member 161; First locking part 1611; Hook part 1612; Force-receiving part 1613; Button part 1614; Hinge part 1615; First elastic member 162; Prosthesis 20; Handle body 21; Neck 22; Mounting hole 221; Opening 222; Bottom surface 223; Positioning hole 224; Side surface 225; Connecting section 23; First direction X; Second direction Y; Cone angle α1; Cone angle α2. Detailed Implementation

[0040] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0045] This application provides a prosthesis, a prosthesis installer, and a prosthesis implantation system. These will be described in detail below.

[0046] Figure 1 This is a schematic diagram of the structure of one embodiment of the prosthesis implantation system provided in this application. Figure 1 As shown, the prosthesis implantation system 1 includes a prosthesis installer 10 and a prosthesis 20. The prosthesis installer 10 is used to connect to the prosthesis 20 and to move the prosthesis 20. The prosthesis installer 10 includes a connecting structure 12 for connecting to the prosthesis 20, thereby connecting the prosthesis installer 10 and the prosthesis 20 together. During the prosthesis 20 implantation surgery, the surgeon can connect the prosthesis installer 10 to the prosthesis 20 and move the prosthesis 20 using the prosthesis installer 10 to implant the prosthesis 20 into the bone cement filling the patient's bone and hold the prosthesis 20 in the appropriate position. Afterwards, the prosthesis installer 10 is separated from the prosthesis 20, leaving the prosthesis 20 in the patient's body, thus completing the prosthesis 20 implantation operation.

[0047] It should be noted that, in addition to being connected or separated from the prosthesis 20 under the operation of the surgeon, the prosthesis installer 10 can also be connected or separated from the prosthesis 20 under the operation of other medical devices. When the connection structure 12 of the prosthesis installer 10 is connected to the prosthesis 20, the prosthesis installer 10 can be moved by operating the prosthesis 20 through other medical devices to implant the prosthesis 20 into the bone cement filling the patient's bone.

[0048] In existing technologies, the prosthesis installer and the prosthesis are detachably connected via a threaded connection. After the prosthesis is implanted into the bone cement filling the patient's bone and held in the appropriate position, the prosthesis installer is rotated relative to the prosthesis, thereby disengaging the installer from the threaded engagement. During this process, the installer applies a rotational force to the prosthesis. When the bone cement is not fully solidified, the prosthesis is prone to rotational displacement relative to the bone under the action of the rotational force, causing a change in the installation position and ultimately leading to inaccurate installation. Furthermore, for prostheses implanted within bone cement filling the bone, their size is generally small. If threaded holes are made in the prosthesis, sharp corners will be formed, affecting the fatigue strength of the prosthesis.

[0049] To avoid the above problems, embodiments of this application provide a prosthesis installer. For example... Figure 1 As shown, the prosthesis installer 10 includes an installation component 11 and a drive component 15. The installation component 11 includes a support member 111 and a connecting structure 12. The connecting structure 12 is located at one end of the support member 111 along a first direction X. The drive component 15 is located on the support member 111 and is used to drive the connecting structure 12 to move, so that the connecting structure 12 can be connected to or separated from the prosthesis 20. When the connecting structure 12 is connected to the prosthesis 20, the connecting structure 12 is relatively fixed to the prosthesis 20 and can drive the prosthesis 20 to move, so that the surgeon can hold the prosthesis installer 10 and drive the prosthesis 20 to move.

[0050] The prosthesis 20 has a mounting hole 221. The connecting structure 12 of the prosthesis installer 10 is inserted into the mounting hole 221 of the prosthesis 20, and the driving assembly 15 is used to drive the connecting structure 12 to move, so that the connecting structure 12 abuts against or separates from the inner circumferential surface of the mounting hole 221. When the connecting structure 12 abuts against the inner circumferential surface of the mounting hole 221, the force between the connecting structure 12 and the inner circumferential surface of the mounting hole 221 can generate a large frictional force between the connecting structure 12 and the inner circumferential surface of the mounting hole 221, thereby preventing the connecting structure 12 from coming out of the mounting hole 221 of the prosthesis 20 and keeping the connecting structure 12 connected to the prosthesis 20. When the connecting structure 12 separates from the inner circumferential surface of the mounting hole 221, the force between the connecting structure 12 and the inner circumferential surface of the mounting hole 221 disappears, and the connecting structure 12 can be dislodged from the mounting hole 221 of the prosthesis 20, thereby separating the connecting structure 12 from the prosthesis 20, and thus separating the prosthesis installer 10 from the prosthesis 20.

[0051] Since the drive assembly 15 drives the connecting structure 12 to move, when the connecting structure 12 abuts or separates from the inner circumferential surface of the mounting hole 221 of the prosthesis 20, the connecting structure 12 does not need to rotate within the mounting hole 221 of the prosthesis 20. Therefore, when the connecting structure 12 is dislodged from the mounting hole 221 of the prosthesis 20, no rotational force is applied to the prosthesis 20, thus avoiding the problem of the prosthesis 20 rotating relative to the bone under the action of rotational force when the connecting structure 12 separates from the prosthesis 20.

[0052] In addition, since the connecting structure 12 and the inner circumferential surface of the mounting hole 221 are mainly kept in a relatively fixed position by friction when they abut against each other, the inner circumferential surface of the mounting hole 221 does not need to be threaded, which can avoid the formation of sharp corners on the prosthesis 20 and thus affect the fatigue strength of the prosthesis 20.

[0053] like Figures 4 to 8 As shown, the connecting structure 12 may include a connecting portion 122, which is used to insert into the mounting hole 221 of the prosthesis 20 and can be positioned relative to the support member 111 in an open position (e.g., Figure 8 (as shown) and the collapsible position (as shown) Figure 7 The drive assembly 15 is used to drive the connecting part 122 to move between the extended position and the retracted position. When the connecting part 122 is inserted into the mounting hole 221 and is in the extended position, it abuts against the inner circumferential surface of the mounting hole 221. That is, the connecting structure 12 abuts against the inner circumferential surface of the mounting hole 221, so that the connecting structure 12 is relatively fixed to the prosthesis 20 and can drive the prosthesis 20 to move. When the connecting part 122 is inserted into the mounting hole 221 and is in the retracted position, it can separate from the inner circumferential surface of the mounting hole 221 and disengage from the mounting hole 221. That is, the connecting structure 12 separates from the inner circumferential surface of the mounting hole 221, so that the connecting structure 12 is separated from the prosthesis 20.

[0054] The prosthesis installer 10 provided in this application embodiment drives the connecting part 122 of the connecting structure 12 to move between the open position and the closed position through the driving component 15. When the connecting part 122 is inserted into the mounting hole 221 and is in the open position, it can abut against the inner circumferential surface of the mounting hole 221, so that the connecting structure 12 is relatively fixed with the prosthesis 20 and can drive the prosthesis 20 to move. When the connecting part 122 is inserted into the mounting hole 221 and is in the closed position, it can separate from the inner circumferential surface of the mounting hole 221 and dislodge from the mounting hole 221, so that the connecting structure 12 is separated from the prosthesis 20.

[0055] When the connecting structure 12 disengages from the mounting hole 221 of the prosthesis 20, since the connecting portion 122 is in a retracted position and separates from the inner circumferential surface of the mounting hole 221, the connecting structure 12 can directly disengage from the mounting hole 221 along the first direction X without applying a rotational force to the prosthesis 20. This avoids the problem of the prosthesis 20 rotating relative to the bone under the action of rotational force when the connecting structure 12 separates from the prosthesis 20. In addition, the inner circumferential surface of the mounting hole 221 does not need to be provided with a threaded structure, which can avoid the formation of sharp corner structures on the prosthesis 20, thereby affecting the fatigue strength of the prosthesis 20.

[0056] It should be noted that the connecting part 122 can rotate or swing relative to the support member 111 between the open position and the closed position, and the connecting part 122 can slide relative to the support member 111 between the open position and the closed position. The specific arrangement depends on the structure and installation method of the connecting part 122. It is only necessary to ensure that the connecting part 122 can abut against the inner circumferential surface of the mounting hole 221 when it is in the open position, and can separate from the inner circumferential surface of the mounting hole 221 and disengage from the mounting hole 221 when it is in the closed position.

[0057] Alternatively, the drive assembly 15 and the connecting part 122 can always remain connected; or, the drive assembly 15 can drive the connecting part 122 to move between the open position and the closed position, while the drive assembly 15 and the connecting part 122 can remain separated when the drive assembly 15 does not drive the connecting part 122 to move between the open position and the closed position.

[0058] Finally, the drive assembly 15 can drive the connecting part 122 to move between the open and closed positions under the operation of the surgical personnel, or it can drive the connecting part 122 to move between the open and closed positions under the operation of other medical devices.

[0059] In some embodiments, such as Figures 4 to 6 As shown, the connection structure 12 of the prosthesis installer 10 may also include a protective part 123, which is used to separate the connection part 122 from the impactor to protect the connection part 122 and prevent the connection part 122 from being deformed or even damaged under the impact force of the impactor.

[0060] It is understandable that during the transportation or use of the prosthesis installer 10, the connecting part 122 of the connecting structure 12 may collide with an impacting object. In particular, when the prosthesis installer 10 falls to the ground, the ground, as the impacting object, will exert a large impact force on the connecting part 122 of the connecting structure 12, causing the connecting part 122 to deform or even be damaged under the impact force exerted by the impacting object.

[0061] The prosthesis installer 10 provided in this application embodiment includes a protective part 123 in the connecting structure 12 that separates the connecting part 122 from the impactor. This avoids the problem of the protective part 123 being deformed and damaged due to direct impact of the impactor on the protective part 123 of the connecting structure 12, which is beneficial to improving the service life of the prosthesis installer 10.

[0062] In other embodiments, the protective portion 123 of the connecting structure 12 may also be used to absorb at least part of the impact force of the impactor, thereby reducing the impact force exerted by the impactor on the connecting portion 122 to a certain extent and reducing the risk of deformation or even damage to the connecting portion 122 under the action of the impact force.

[0063] It is understandable that by absorbing at least a portion of the impact force from the impactor by the protective part 123, the impact force exerted on the connecting part 122 by the impactor can be reduced. Furthermore, the connecting part 122 itself possesses a certain strength and resistance to deformation. Even if the connecting part 122 deforms due to a small impact force, it can automatically return to its initial state without deformation or damage. Therefore, by absorbing at least a portion of the impact force by the protective part 123, the risk of deformation or even damage to the connecting part 122 under impact force can be reduced to a certain extent.

[0064] It should be noted that the protective part 123 of the connecting structure 12 can bear all the impact force of the impacting object, or it can only bear part of the impact force of the impacting object. The specific method can be determined according to the structure and installation position of the protective part 123, as well as the strength and deformation resistance of the connecting part 122.

[0065] Continue to refer to Figures 4 to 6 The protective portion 123 of the connecting structure 12 can be provided with a receiving space 1231. When the connecting portion 122 is in the retracted position, it is at least partially retracted into the receiving space 1231, so that the protective portion 123 protects the connecting portion 122. Thus, the protective portion 123 of the connecting structure 12 can protect the part of the connecting portion 122 that is received in the receiving space 1231, preventing the part of the connecting portion 122 received in the receiving space 1231 from being impacted by an impacting object. That is, it separates the part of the connecting portion 122 received in the receiving space 1231 from the impacting object, thereby reducing the risk of deformation or even damage to the connecting portion 122 under the impact force of the impacting object to a certain extent.

[0066] When the connecting part 122 is in the retracted position, it can be completely retracted into the receiving space 1231, or it can be partially retracted into the receiving space 1231. When the connecting part 122 is in the retracted position and is completely retracted into the receiving space 1231, the protective part 123 can withstand the impact force of the impacting object as much as possible, or even completely separate the connecting part 122 from the impacting object, so as to avoid the connecting part 122 being hit by the impacting object, thereby minimizing the risk of deformation or even damage to the connecting part 122 due to the impact of the impacting object.

[0067] When the connecting portion 122 is in the retracted position and partially retracted into the receiving space 1231, the protective portion 123 can separate the portion of the connecting portion 122 within the receiving space 1231 from the impacting object, thus providing a certain degree of protection for the connecting portion 122. The portion of the connecting portion 122 not retracted into the receiving space 1231 and the protective portion 123 may be impacted by the impacting object. The protective portion 123 absorbs the impact force of the impacting object, reducing the impact force on the connecting portion 122 and making it less prone to deformation or damage. Furthermore, after being impacted by the impact force of the impacting object, the portion of the connecting portion 122 not retracted into the receiving space 1231 can undergo elastic deformation and retract into the receiving space 1231 of the protective portion 123, thereby protecting the entire connecting portion 122.

[0068] In some embodiments, such as Figure 7 and Figure 8 As shown, when the connecting part 122 is in the retracted position, it can be completely retracted into the receiving space 1231, and when the connecting part 122 is in the extended position, it can extend out of the outer surface of the protective part 123, so that the connecting part 122 in the extended position can abut against the inner peripheral surface of the mounting hole 221 of the prosthesis 20.

[0069] In other embodiments, the connecting portion 122 can be accommodated within the receiving space 1231 of the protective portion 123 in both the retracted and extended positions, thereby protecting the connecting portion 122 in both positions. Specifically, the prosthesis 20 includes a fixing portion for connection with the prosthesis installer 10, and a mounting hole 221 is formed on the surface of the fixing portion. When the connecting portion 122 of the connecting structure 12 of the prosthesis installer 10 is inserted into the mounting hole 221 of the prosthesis 20, the fixing portion of the prosthesis 20 can be at least partially accommodated within the receiving space 1231 of the protective portion 123, thereby preventing interference between the protective portion 123 and the prosthesis 20. In this case, the protective portion 123 is larger in size, making it more suitable for surgical scenarios where the operating space of the prosthesis 20 is larger.

[0070] In some embodiments, before the connecting portion 122 is inserted into the mounting hole 221, the prosthesis installer 10 can be inserted into the mounting hole 221 when the connecting portion 122 of the connecting structure 12 is in the retracted position without operating the drive assembly 15. That is, before the connecting portion 122 is inserted into the mounting hole 221, the connecting portion 122 of the connecting structure 12 remains in the retracted position, and no operation of the drive assembly 15 of the prosthesis installer 10 by the surgeon or other medical equipment is required to move the connecting portion 122 of the connecting structure 12 from the open position to the retracted position.

[0071] Therefore, before the connecting structure 12 of the prosthesis installer 10 is inserted into the mounting hole 221 of the prosthesis 20, the connecting portion 122 of the connecting structure 12 is protected by the protective portion 123, without requiring the surgeon or other medical equipment to take additional steps to operate the drive assembly 15 to move the connecting portion 122 from the open position to the closed position. This is more in line with the surgeon's operating habits and avoids the problem of the connecting portion 122 being impacted by an impactor if the surgeon forgets to operate the drive assembly 15 to move the connecting portion 122 from the open position to the closed position before inserting the connecting structure 12 of the prosthesis installer 10 into the mounting hole 221 of the prosthesis 20.

[0072] After the drive component is inserted into the mounting hole 221, the drive assembly 15 can be operated to drive the connecting part 122 from the retracted position to the extended position, thereby fixing the connecting structure 12 and the prosthesis 20, fixing the prosthesis 20 and the connecting structure 12 relative to each other, so that the prosthesis 20 can be moved by the prosthesis installer 10.

[0073] In some embodiments, the drive assembly 15 can be used to apply a driving force to the connecting portion 122, driving the connecting portion 122 from a retracted position to an extended position. The driving force applied by the drive assembly 15 to the connecting portion 122 can be a pushing force or a pulling force, as long as it is sufficient to drive the connecting portion 122 from the retracted position to the extended position. When the drive assembly 15 releases the driving force applied to the connecting portion 122, the connecting portion 122 can return from the extended position to the retracted position under the action of an external force or its own elastic force, and remain in the retracted position.

[0074] After the implant mount 10 separates from the previous implant 20, the connecting portion 122 of the implant mount 10 can remain in the retracted position and be protected by the protective portion 123 before being inserted into the mounting hole 221 of the current implant 20 without operating the drive assembly 15. After the connecting portion 122 is inserted into the mounting hole 221 of the implant 20, the drive assembly 15 can be operated to apply a driving force to the connecting portion 122, driving the connecting portion 122 from the retracted position to the extended position, so that the connecting portion 122 abuts against the inner circumferential surface of the mounting hole 221, thereby fixing the implant 20 and the connecting structure 12 relative to each other.

[0075] When it is necessary to separate the connecting structure 12 of the prosthesis installer 10 from the current prosthesis 20, the driving force applied to the connecting portion 122 can be released by operating the drive assembly 15, causing the connecting portion 122 to move from the open position to the closed position, so that the connecting structure 12 can be removed from the mounting hole 221 of the prosthesis 20. At this time, before the connecting structure 12 of the prosthesis installer 10 is inserted into the mounting hole 221 of the next prosthesis 20, the prosthesis installer 10 does not need to operate the drive assembly 15, so that the connecting portion 122 of the connecting structure 12 is in the closed position and protected by the protection portion 123.

[0076] In other embodiments, the drive assembly 15 can also be used to apply a driving force to the connecting portion 122, driving the connecting portion 122 from an open position to a closed position. When the drive assembly 15 releases the driving force applied to the connecting portion 122, the connecting portion 122 remains in the open position. The driving force applied by the drive assembly 15 to the connecting portion 122 can be a pushing force or a pulling force, as long as it is sufficient to drive the connecting portion 122 from the closed position to the open position. When the drive assembly 15 releases the driving force applied to the connecting portion 122, the connecting portion 122 can return from the closed position to the open position under the action of an external force or its own elastic force.

[0077] Alternatively, the drive assembly 15 can be used to apply a driving force to the connecting portion 122, driving the connecting portion 122 from the extended position to the retracted position. When the drive assembly 15 applies a driving force in the opposite direction to the connecting portion 122, it drives the connecting portion 122 from the retracted position to the extended position. The driving force applied by the drive assembly 15 to the connecting portion 122 can be a pushing force or a pulling force, as long as it is sufficient to drive the connecting portion 122 to move between the retracted position and the extended position.

[0078] When the drive assembly 15 of the prosthesis installer 10 drives the connecting portion 122 from the extended position to the retracted position, separating the prosthesis installer 10 from the previous prosthesis 20, the drive assembly 15 can maintain the driving force applied to the connecting portion 122, keeping it in the retracted position and protected by the protection portion 123. Before the connecting portion 122 is inserted into the mounting hole 221 of the current prosthesis 20, the drive assembly 15 can be operated to keep the connecting portion 122 in the retracted position within the mounting hole 221. After the connecting portion 122 is inserted into the mounting hole 221 of the prosthesis 20, the drive assembly 15 can be operated to release the driving force applied to the connecting portion 122, or the drive assembly 15 can be operated to apply the opposite driving force to the connecting portion 122, moving it from the retracted position to the extended position, causing the connecting portion 122 to abut against the inner circumferential surface of the mounting hole 221, thereby fixing the prosthesis 20 and the connecting structure 12 relative to each other.

[0079] When it is necessary to separate the connecting structure 12 of the prosthesis installer 10 from the prosthesis 20, the driving force applied to the connecting portion 122 by the driving assembly 15 can be operated to move the connecting portion 122 from the open position to the closed position, so as to facilitate the removal of the connecting structure 12 from the mounting hole 221 of the prosthesis 20. At this time, the connecting portion 122 of the prosthesis installer 10 remains in the closed position until the connecting structure 12 of the prosthesis installer 10 is inserted into the mounting hole 221 of the next prosthesis 20. Therefore, the connecting portion 122 of the connecting structure 12 can be in the closed position and protected by the protective portion 123 without operating the driving assembly 15.

[0080] In some embodiments, such as Figures 4 to 6 As shown, the protective portion 123 of the connecting structure 12 may include a plurality of first protective segments 1232, which are sequentially distributed along the circumference of the protective portion 123. The first protective segments 1232 extend along a first direction X, and a receiving space 1231 is formed between two adjacent first protective segments 1232. When the connecting portion 122 is at least partially received within the receiving space 1231, first protective segments 1232 are respectively provided on both sides of the connecting portion 122 along the circumference of the protective portion 123. When an impactor strikes the connecting portion 122 from both sides of the circumference of the protective portion 123, the first protective segments 1232 can separate the connecting portion 122 from the impactor, or the first protective portion 123 can at least partially bear the impact force of the impactor.

[0081] Specifically, the length of the first protective segment 1232 in the first direction X can be greater than or equal to the length of the connecting portion 122 in the first direction X, so that the length of the accommodating space 1231 between two adjacent first protective segments 1232 in the first direction X is greater than the length of the connecting portion 122 in the first direction X. Thus, the two first protective segments 1232 located on both sides of the connecting portion 122 can more fully protect the connecting portion 122, further reducing the risk of the connecting portion 122 being deformed or even damaged by an impact.

[0082] Of course, the length of the first protective segment 1232 in the first direction X can be made smaller than the length of the connecting part 122 in the first direction X, so that the length of the accommodating space 1231 between two adjacent first protective segments 1232 in the first direction X is smaller than the length of the connecting part 122. Then, the two first protective segments 1232 located on both sides of the connecting part 122 can protect a part of the connecting part 122 from the impact of the impacting object, and can also reduce the risk of the connecting part 122 being deformed or even damaged by the impacting object to a certain extent.

[0083] In some embodiments, when the connecting portion 122 is in the retracted position, the connecting portion 122 is spaced apart from the protective portion 123 on both sides of the circumference. When the protective portion 123 includes a first protective segment 1232, the connecting portion 122 is spaced apart from the first protective segments 1232 on both sides to form a buffer space on both sides of the connecting portion 122. When an impactor hits the first protective segment 1232, the impact force received by the first protective segment 1232 will not be transmitted to the connecting portion 122, or only a small part of the impact force received by the first protective segment 1232 will be transmitted to the connecting portion 122, which is beneficial to further improve the protective effect of the protective portion 123 on the connecting portion 122.

[0084] Continue to refer to Figures 4 to 6 The protective portion 123 may further include a second protective segment 1233 located on the side of the receiving space 1231 away from the support member 111. Thus, when the connecting portion 122 is at least partially received within the receiving space 1231, the second protective segment 1233 can protect the side of the connecting portion 122 away from the support member 111. When an impactor strikes the connecting portion 122 from the side away from the support member 111, the second protective segment 1233 can separate the connecting portion 122 from the impactor, or the second protective portion 123 can at least partially absorb the impact force of the impactor.

[0085] When the connecting portion 122 is in the retracted position, the side of the connecting portion 122 away from the support member 111 is spaced apart from the protective portion 123. When the protective portion 123 includes a second protective section 1233, the side of the connecting portion 122 away from the support member 111 is spaced apart from the second protective section 1233, so as to form a buffer space on the side of the connecting portion 122 away from the support member 111. When an impacting object hits the second protective section 1233, the impact force received by the second protective section 1233 will not be transmitted to the connecting portion 122, or only a small part of the impact force received by the first protective section 1232 will be transmitted to the connecting portion 122, which is beneficial to further improve the protective effect of the protective portion 123 on the connecting portion 122.

[0086] In some embodiments, the ends of the plurality of first protective segments 1232 of the protective portion 123 that are away from the support member 111 can be connected to the second protective segments 1233 respectively. This improves the overall strength of the protective portion 123, enhances the deformation resistance of the first protective segments 1232 and the second protective segments 1233, and allows the first protective segments 1232 and the second protective segments 1233 of the protective portion 123 to better protect the connecting portion 122.

[0087] The first protective segment 1232 and the second protective segment 1233 of the protective part 123 can be integrally formed, or the first protective segment 1232 and the second protective segment 1233 of the protective part 123 can be fixedly connected by means of snap-fit, screw fixation, or adhesive.

[0088] In some embodiments, such as Figure 6 As shown, the number of connecting parts 122 can be multiple, and the multiple connecting parts 122 are distributed sequentially along the circumference of the protective part 123. The driving assembly 15 is used to drive the multiple connecting parts 122 to move between the extended position and the retracted position. When the multiple connecting parts 122 are inserted into the mounting hole 221 and are in the extended position, they can abut against the inner circumferential surface of the mounting hole 221 respectively, which can make the force between the connecting structure 12 and the inner circumferential surface of the mounting hole 221 more evenly distributed in the circumferential direction of the mounting hole 221, which is beneficial to improving the connection stability between the connecting structure 12 and the prosthesis 20.

[0089] The number of connecting parts 122 can be two, three or more, and there is no limitation here. Of course, the number of connecting parts 122 can also be one. In this case, in addition to the connecting part 122 in the open position abutting against the inner peripheral surface of the mounting hole 221 of the prosthesis 20, other parts of the connecting structure 12 can also abut against the inner peripheral surface of the mounting hole 221, so that the connecting structure 12 and the prosthesis 20 are relatively fixed.

[0090] Correspondingly, the protective part 123 is used to separate the plurality of connecting parts 122 from the impactor, or to absorb at least part of the impact force of the impactor on each connecting part 122, thereby protecting the plurality of connecting parts 122. The protective part 123 may include a plurality of receiving spaces 1231, each corresponding to one of the plurality of connecting parts 122, thereby protecting the plurality of connecting parts 122. When the plurality of connecting parts 122 are in the retracted position, each connecting part 122 is at least partially retracted within the receiving space 1231.

[0091] Specifically, the protective portion 123 extends along the first direction X in a rod-like structure. There are two connecting portions 122, which are sequentially distributed along the circumference of the protective portion 123. Receiving spaces 1231 are respectively formed on both radial sides of the protective portion 123, thereby dividing the protective portion 123 into two first protective segments 1232. The first direction X, the distribution direction of the two connecting portions 122, and the distribution direction of the two first protective segments 1232 are perpendicular to each other. A clearance hole 125 penetrates the protective portion 123 along the first direction X. The clearance hole 125 communicates with the two receiving spaces 1231.

[0092] In some embodiments, the connecting portion 122 may include a connecting end 1221 and a free end 1222, which are sequentially distributed along a direction away from the support member 111. The connecting end 1221 of the connecting portion 122 is connected to the main body 121 of the connecting structure 12. Thus, the connecting portion 122 can be driven by the driving assembly 15 to swing or rotate relative to the support member 111 around the connecting end 1221, thereby allowing the connecting portion 122 to move between an open position and a retracted position.

[0093] The connecting portion 122 is integrally formed with the main body 121 of the connecting structure 12 to improve the connection strength between the connecting portion 122 and the main body 121 of the connecting structure 12. Additionally, the connecting portion 122 can be made elastic. When the transmission member 151 drives the connecting portion 122 from the retracted position to the extended position, the connecting portion 122 can undergo elastic deformation to store elastic potential energy. When the driving assembly 15 removes the driving force applied to the connecting portion 122, the connecting portion 122 releases the stored elastic potential energy, causing the connecting portion 122 to automatically return to the retracted position. Therefore, it is no longer necessary to drive the connecting portion 122 from the extended position to the retracted position via the driving assembly 15, simplifying the structure of the driving assembly 15 and the connecting portion 122.

[0094] In other embodiments, such as Figure 9 and Figure 10 As shown, the connecting part 122 and the protective part 123 can also be separately arranged and movably connected to each other, so that the connecting part 122 can move between the folded position and the extended position. The connecting structure 12 may be provided with a second elastic member 13 connected to the connecting part 122. When the connecting part 122 moves from the folded position to the extended position, the second elastic member 13 undergoes elastic deformation to store elastic potential energy. When the driving assembly 15 removes the driving force applied to the connecting part 122, the second elastic member 13 releases the elastic potential energy to drive the connecting part 122 from the extended position to the folded position. Therefore, it is no longer necessary to drive the connecting part 122 from the extended position to the folded position via the driving assembly 15, which simplifies the structure of the driving assembly 15 and the connecting part 122.

[0095] When the second elastic element 13 releases its elastic potential energy, the elastic force applied to the connecting portion 122 can be a pushing force or a pulling force, depending on the structure and installation position of the second elastic element 13. For example, the connecting end 1221 of the connecting portion 122 is rotatably connected to the main body 121 of the connecting structure 12, allowing the connecting portion 122 to swing between a retracted position and an extended position. The main body 121 of the connecting structure 12 includes an abutting portion 1211 located on the side of the connecting portion 122 away from the clearance hole 125, and the second elastic element 13 is disposed between the abutting portion 1211 and the connecting portion 122. The second elastic element 13 is a linear spring. One end of the second elastic element 13 abuts against the abutting portion 1211, and the other end of the second elastic element 13 abuts against the connecting portion 122. When the connecting portion 122 rotates from the retracted position to the extended position, it compresses the second elastic element 13, causing the second elastic element 13 to undergo elastic deformation to store elastic potential energy. When the driving component 15 cancels the driving force applied to the connecting part 122, the second elastic element 13 releases elastic potential energy and applies a thrust to the connecting part 122 to drive the connecting part 122 to rotate from the open position to the closed position.

[0096] Of course, the second elastic element 13 can also be a torsion spring, a tension spring, etc., depending on the installation position of the second elastic element 13. When the second elastic element 13 is a torsion spring, the elastic force applied by the second elastic element 13 to the connecting part 122 is a torsional force. When the second elastic element 13 is a tension spring, the elastic force applied by the second elastic element 13 to the connecting part 122 is a tensile force.

[0097] In other embodiments, the connecting structure 12 may not be provided with the second elastic element 13. When the driving component 15 cancels the driving force applied to the connecting part 122, an external force can be applied to the connecting part 122 manually or with other tools to make the connecting part 122 return to the retracted position.

[0098] In some embodiments, the Rockwell hardness (HRC) of the connecting structure 12 can be greater than that of the support 111. This allows the connecting structure 12 to have greater hardness, reducing the risk of deformation or even damage to the connecting portion 122 of the connecting structure 12 under impact. Conversely, using a material with a relatively low Rockwell hardness (HRC) for the support 111 reduces its cost, thereby lowering the overall cost of the prosthesis installer 10.

[0099] In some embodiments, the Rockwell hardness (HRC) of the connecting structure 12 may be greater than or equal to 47, so that the connecting structure 12 has greater hardness, thereby reducing the risk of deformation or even damage to the connecting portion 122 of the connecting structure 12 under the impact of an impactor. The Rockwell hardness (HRC) of the connecting structure 12 may be 50, 55, etc., and is not limited here.

[0100] It should be noted that the Rockwell hardness (HRC) of the connecting structure 12 can be greater than or equal to 47, and also greater than the Rockwell hardness (HRC) of the support 111. Alternatively, the Rockwell hardness (HRC) of the connecting structure 12 can be greater than or equal to 47, or only the Rockwell hardness (HRC) of the connecting structure 12 can be greater than the Rockwell hardness of the support 111. Of course, the former can reduce the risk of deformation or even damage to the connecting part 122 of the connecting structure 12 under the impact of an impactor, while minimizing the overall cost of the prosthesis installer 10.

[0101] In some embodiments, the connecting structure 12 and the support member 111 can be detachably connected. Therefore, if the connecting structure 12 is damaged due to impact or other reasons, it can be separated from the support member 111 and replaced with a new connecting structure 12. This facilitates maintenance and avoids scrapping the entire prosthesis installer 10, thus reducing maintenance costs. The connecting structure 12 and the support member 111 can be detachably connected via snap-fit, screw connection, or other methods.

[0102] In other embodiments, the connecting structure 12 and the support member 111 can be integrally formed, thereby improving the connection stability between the connecting structure 12 and the support member 111. The connecting structure 12 and the support member 111 can be integrally formed during processing, or they can be integrally formed by welding or other methods; no limitation is imposed here.

[0103] like Figure 13 and Figure 14 As shown, the connecting part 122 includes an abutting surface 1223 for abutting against the inner peripheral surface of the mounting hole 221. When the connecting part 122 is inserted into the mounting hole 221 of the prosthesis 20 and moves from the retracted position to the extended position, the abutting surface 1223 of the connecting part 122 abuts against the inner peripheral surface of the mounting hole 221.

[0104] In some embodiments, the abutment surface 1223 of the connecting portion 122 may be a part of a first conical surface, the diameter of which gradually increases along the direction of the connecting portion 122 away from the support member 111. Correspondingly, the inner circumferential surface of the mounting hole 221 of the prosthesis 20 may be a part of a second conical surface, and the diameter of the second conical surface gradually decreases from the bottom surface 223 to the opening 222 of the mounting hole 221. When the abutment surface 1223 of the connecting portion 122 abuts against the inner circumferential surface of the mounting hole 221 of the prosthesis 20, the force exerted by the inner circumferential surface of the mounting hole 221 on the abutment surface 1223 of the connecting portion 122 has a component force along the direction from the opening 222 to the bottom surface 223 of the mounting hole 221. Moreover, when the connecting portion 122 is in the open position, the maximum size of the portion of the connecting structure 12 located inside the mounting hole 221 is larger than the size of the opening 222 of the mounting hole 221, which helps to prevent the connecting structure 12 from dislodging from the mounting hole 221 of the prosthesis 20. In addition, the contact area between the abutting surface 1223 of the connecting part 122 and the inner peripheral surface of the mounting hole 221 is larger, and the fit is tighter, which helps to improve the connection stability between the connecting structure 12 and the prosthesis 20.

[0105] In some embodiments, the cone angle α1 of the first conical surface can be greater than or equal to 2° to further improve the effect of preventing the connecting structure 12 from dislodging from the mounting hole 221 of the prosthesis 20, making the connection between the connecting structure 12 and the prosthesis 20 more stable. The cone angle α1 of the first conical surface can be 3°, 5°, 8°, 10°, etc., and can be determined according to the structure of the mounting hole 221 and the connecting portion 122, and is not limited here.

[0106] In some embodiments, such as Figures 4 to 6 , Figure 16 As shown, the connecting structure 12 may include a positioning part 124, which is inserted into the positioning hole 224 of the prosthesis 20 to restrict the rotation of the prosthesis 20 relative to the connecting structure 12. Specifically, the connecting structure 12 includes two positioning parts 124, which are distributed on both sides of the main body 121 of the connecting structure 12. The distribution direction of the two positioning parts 124 and the distribution direction of the two connecting parts 122 are perpendicular to the first direction X. Correspondingly, the prosthesis 20 includes two mounting holes 221, and the two positioning parts 124 are provided in a one-to-one correspondence with the two mounting holes 221.

[0107] In other embodiments, such as Figure 11 As shown, the support member 111 may include a positioning part 124, and the positioning part 124 is located at the end of the support member 111 where the connecting structure 12 is provided. There are two positioning parts 124 provided on the support member 111, and the two positioning parts 124 are distributed on both sides of the connecting structure 12. The distribution direction of the two positioning parts 124 and the distribution direction of the two connecting parts 122 are perpendicular to the first direction X.

[0108] In some embodiments, such as Figure 1 , Figure 6 and Figure 7 As shown, the drive assembly 15 may include a transmission member 151 and a drive mechanism 152 disposed on the support member 111. The drive mechanism 152 is connected to the transmission member 151 and is used to drive the transmission member 151 to move relative to the support member 111, so that the transmission member 151 drives the connecting part 122 of the connecting structure 12 to move between the open position and the closed position.

[0109] The drive mechanism 152 can be used to drive the transmission component 151 to a first position (e.g., Figure 7 (as shown) and the second position (as shown) Figure 8 As shown, when the transmission member 151 moves from the first position to the second position, it abuts against the connecting part 122 and applies a driving force, driving the connecting part 122 from the retracted position to the extended position. When the transmission member 151 is in the first position, it avoids the connecting part 122, keeping the connecting part 122 in the retracted position.

[0110] It is understandable that when the transmission member 151 is in the first position of avoiding the connecting part 122, the driving force applied by the transmission member 151 to the connecting part 122 is canceled, so that the connecting part 122 can return from the open position to the closed position under the action of external force or its own elastic force, and remain in the closed position.

[0111] In this embodiment, the drive mechanism 152 can drive the transmission member 151 to slide between the first position and the second position, or the drive mechanism 152 can drive the transmission member 151 to rotate between the first position and the second position. It is only necessary that when the transmission member 151 moves from the first position to the second position, it can drive the connecting part 122 to move from the closed position to the open position, and when the transmission member 151 moves from the second position to the first position, the connecting part 122 can move from the open position to the closed position.

[0112] Specifically, such as Figures 4 to 8 As shown, the protective portion 123 of the connecting structure 12 extends along the first direction X. An avoidance hole 125 extending along the first direction X is provided within the connecting structure 12, and this avoidance hole 125 communicates with the receiving space 1231. The transmission member 151 is slidably mounted within the avoidance hole 125 along the first direction X and extends along the first direction X in a rod-like structure. When the transmission member 151 is in the first position, it avoids the connecting portion 122, keeping the connecting portion 122 in a retracted position. During the process of the transmission member 151 sliding from the first position to the second position along the first direction X, the transmission member 151 abuts against the side of the connecting portion 122 facing the avoidance hole 125, and pushes the connecting portion 122 to move away from the avoidance hole 125 to an open position.

[0113] Continue to refer to Figures 4 to 8When the connecting part 122 is in the retracted position, the connecting part 122 is at least partially located in the clearance hole 125, so that the connecting part 122 overlaps with the orthographic projection of the transmission member 151 on the projection plane perpendicular to the first direction X, so that the transmission member 151 can abut against the connecting part 122 during the process of sliding the transmission member 151 from the first position to the second position along the first direction X, so as to push the connecting part 122 from the retracted position to the open position.

[0114] The connecting portion 122 includes an abutment protrusion 126 located on the side of the connecting portion 122 facing the clearance hole 125. When the connecting portion 122 is in the retracted position, at least a portion of the abutment protrusion 126 is located within the clearance hole 125. The abutment protrusion 126 overlaps with the orthographic projection portion of the transmission member 151 on a projection plane perpendicular to the first direction X. During the process of the transmission member 151 sliding from a first position to a second position along the first direction X, the transmission member 151 abuts against the abutment protrusion 126, thereby pushing the connecting portion 122 from the retracted position to the extended position.

[0115] Specifically, the connecting portion 122 extends in a rod-like structure along the first direction X, and the abutment protrusion 126 is located at the end of the connecting portion 122 away from the support member 111. The abutment protrusion 126 includes a guide surface 1261, which is located on the side of the abutment protrusion 126 facing the clearance hole 125. During the process of the transmission member 151 sliding from the first position to the second position along the first direction X, the transmission member 151 abuts against the guide surface 1261 to push the connecting portion 122 from the retracted position to the extended position. The guide surface 1261 is located on the side of the abutment protrusion 126 closer to the support member 111. In the direction away from the support member 111, the guide surface 1261 is inclined towards the clearance hole 125.

[0116] In some embodiments, such as Figure 1 As shown, the transmission member 151 extends in a rod-like structure along the first direction X, and the transmission member 151 is slidably connected to the support member 111 along the first direction X. The support member 111 includes a sliding hole 1111 extending along the first direction X, and the transmission member 151 is slidably installed in the sliding hole 1111 along the first direction X. The drive mechanism 152 includes a drive handle 1521 rotatably connected to the support member 111. The drive handle 1521 is rotatably connected to the transmission member 151. When the surgeon rotates the drive handle 1521 relative to the support member 111, the drive handle 1521 can drive the transmission member 151 to slide relative to the support member 111 along the first direction X between a first position and a second position.

[0117] Specifically, the transmission component 151 is provided with a transmission shaft 153, and one end of the drive handle 1521 along its length is rotatably connected to the transmission shaft 153. Furthermore, the transmission shaft 153 can move relative to the drive handle 1521 along the length of the drive handle 1521 to prevent the drive handle 1521 from jamming with the transmission component 151 when the drive handle 1521 drives the transmission component 151 to move along the first direction X. The drive handle 1521 can rotate relative to the support component 111 about a rotation axis, which is parallel to the axial direction of the transmission shaft 153.

[0118] In other embodiments, the drive shaft 153 may be located at one end of the drive handle 1521. The drive shaft 153 can rotate relative to the transmission member 151, and the drive shaft 153 can move relative to the transmission member 151. The first direction X, the axial direction of the drive shaft 153, and the direction of movement of the drive shaft 153 relative to the transmission member 151 are perpendicular to each other. The drive handle 1521 can rotate relative to the support member 111 about a rotation axis, which is parallel to the axial direction of the drive shaft 153.

[0119] In other embodiments, such as Figures 12 to 15 As shown, the connecting structure 12 can include two oppositely arranged connecting portions 122, which are hinged to the same hinge axis 14, thereby allowing at least one connecting portion 122 to be in an open position relative to the support member 111 (e.g., Figure 15 (as shown) and the collapsible position (as shown) Figure 14 The two connecting parts 122 can rotate relative to the support member 111 between an open position and a closed position. Alternatively, one connecting part 122 can rotate relative to the support member 111 between an open position and a closed position, while the other connecting part 122 is fixed relative to the support member 111. Furthermore, both connecting parts 122 can be rotatably connected to the hinge shaft 14, or one connecting part 122 can be rotatably connected to the hinge shaft 14 while the other connecting part 122 is fixedly connected to the hinge shaft 14. Both configurations allow the two connecting parts 122 to rotate relative to each other.

[0120] The two connecting parts 122 of the connecting structure 12 are used to be inserted into the mounting holes 221 of the prosthesis 20, and at least one connecting part 122 can rotate relative to the support member 111 between an open position and a closed position, thereby fixing or separating the connecting structure 12 from the prosthesis 20.

[0121] In this configuration, the two connecting portions 122 of the connecting structure 12 are inserted into the mounting holes 221 of the prosthesis 20. When at least one connecting portion 122 is in the open position, the two connecting portions 122 can abut against the inner circumferential surface of the mounting hole 221, thereby fixing the connecting structure 12 relative to the prosthesis 20 and enabling the prosthesis 20 to move. When the two connecting portions 122 of the connecting structure 12 are inserted into the mounting holes 221 of the prosthesis 20, and at least one connecting portion 122 is in the closed position, it can separate from the inner circumferential surface of the mounting hole 221 and disengage from the mounting hole 221, thereby separating the connecting structure 12 from the prosthesis 20.

[0122] like Figure 12 , Figure 14 and Figure 15 As shown, the drive assembly 15 is rotatably connected to at least one connecting portion 122 that can move between an open position and a closed position, thereby driving the corresponding connecting portion 122 to rotate between the open and closed positions. Specifically, the drive assembly 15 applies a driving force to the corresponding connecting portion 122 to drive it to rotate from the closed position to the open position. Simultaneously, the drive assembly 15 can also apply a reverse driving force to the corresponding connecting portion 122 to drive it to rotate from the closed position to the open position. Of course, the connecting portion 122 in the open position can rotate from the open position to the closed position under the action of an external force, without the drive assembly 15 driving it to rotate from the open position to the closed position.

[0123] It should be noted that when both connecting parts 122 can rotate relative to the support member 111 between the open and closed positions, the drive assembly 15 is rotatably connected to both connecting parts 122 to drive the two connecting parts 122 to rotate between the open and closed positions. When only one connecting part 122 can rotate relative to the support member 111 between the open and closed positions, the drive assembly 15 is rotatably connected to that connecting part 122 to drive that connecting part 122 to rotate between the open and closed positions.

[0124] In some embodiments, such as Figure 11 and Figure 12 As shown, the drive assembly 15 may include a transmission member 151 and a drive mechanism 152 disposed on the support member 111. The drive mechanism 152 is connected to the transmission member 151. The transmission member 151 is rotatably connected to at least one connecting part 122 that can move between an open position and a closed position, thereby causing the drive assembly 15 to be rotatably connected to at least one connecting part 122 that can move between an open position and a closed position.

[0125] The drive mechanism 152 drives the transmission member 151 to move, thereby causing the transmission member 151 to drive the corresponding connecting part 122 to move between an open position and a closed position. Specifically, the drive mechanism 152 drives the transmission member 151 to move between a first position and a second position. When the transmission member 151 moves from the first position to the second position, it drives at least one connecting part 122 from the closed position to the open position. When the transmission member 151 moves from the second position to the first position, it drives both connecting parts 122 from the open position to the closed position. Therefore, when the transmission member 151 is held in the first position, the connecting part 122 can be stably held in the closed position, and when the transmission member 151 is held in the second position, the connecting part 122 can be stably held in the open position.

[0126] In some embodiments, such as Figure 14 and Figure 15 As shown, the two connecting parts 122 of the connecting structure 12 can rotate relative to each other in opposite directions around the hinge axis 14, thereby allowing the two connecting parts 122 to rotate between an open position and a closed position. When the two connecting parts 122 of the connecting structure 12 are in the open position, they can rotate towards each other, thereby rotating the two connecting parts 122 from the open position to the closed position. When the two connecting parts 122 of the connecting structure 12 are in the closed position, they can rotate in opposite directions, thereby rotating the two connecting parts 122 from the closed position to the open position.

[0127] Among them, such as Figures 13 to 15 As shown, each of the two connecting portions 122 has a strip-shaped hole 1224. The length directions of the strip-shaped holes 1224 intersect each other and are set at an acute angle to the first direction X. The connecting structure 12 includes a connecting shaft 154 installed in the two strip-shaped holes 1224. The connecting shaft 154 can move along the length direction of the strip-shaped holes 1224 within the strip-shaped holes 1224. Thus, when the connecting shaft 154 moves along the first direction X, the connecting shaft 154 can abut against the inner circumferential surface of the strip-shaped hole 1224 and apply a thrust to the inner circumferential surface of the strip-shaped hole 1224, pushing the two connecting portions 122 to rotate relative to each other around the hinge shaft 14.

[0128] Continue to refer to Figures 13 to 15 The transmission component 151 is connected to the connecting shaft 154, thereby rotatably connecting the transmission component 151 to the two connecting parts 122. The transmission component 151 is used to drive the connecting shaft 154 to move along the first direction X, so that the connecting shaft 154 moves within the two strip holes 1224, thereby causing the connecting parts 122 to rotate relative to each other.

[0129] Specifically, a strip-shaped hole 1224 is provided on one circumferential side of the connecting portion 122 along the hinge shaft 14, and the strip-shaped hole 1224 penetrates the connecting portion 122 along the axial direction of the hinge shaft 14. The strip-shaped hole 1224 is located on the side of the hinge shaft 14 near or away from the support member 111. The axial direction of the hinge shaft 14 is substantially parallel to the axial direction of the connecting shaft 154. The transmission member 151 extends along the first direction X in a rod-like structure, and the transmission member 151 is slidably connected to the support member 111 along the first direction X. The drive mechanism 152 includes a drive rod 1522 threadedly connected to the support member 111, and an adjustment knob 1523 provided at one end of the drive rod 1522. The drive rod 1522 extends along the first direction X, and the adjustment knob 1523 is located on the side of the support member 111 away from the connecting structure 12. The end of the drive rod 1522 away from the adjustment knob 1523 is rotatably connected to the end of the transmission component 151 away from the connecting structure 12, and the drive rod 1522 can drive the transmission component 151 to move along the first direction X.

[0130] When using the prosthesis installer 10, the surgeon can rotate the adjustment knob 1523, causing the adjustment knob 1523 to drive the drive rod 1522 to rotate helically relative to the support member 111. At this time, the drive rod 1522 will move relative to the support member 111 in the first direction X, thereby driving the transmission member 151 to move in the first direction X. The transmission member 151 will then drive the connecting shaft 154 to move in the first direction X, thereby pushing the two connecting parts 122 to rotate relative to each other around the hinge shaft 14. The connecting part 122 can be rotated from the open position to the closed position, or vice versa, by controlling the rotation direction of the adjustment knob 1523, making the operation very convenient.

[0131] In some embodiments, such as Figures 1 to 3 As shown, the prosthesis installer 10 may also include a locking assembly 16 for locking and unlocking the transmission member 151. When the locking assembly 16 locks the transmission member 151, the transmission member 151 remains in a first position or a second position; when the locking assembly 16 unlocks the transmission member 151, the transmission member 151 can move between the first position and the second position.

[0132] The locking component 16 may include a locking member 161 movably connected to the support member 111, the locking member 161 being in a locked position relative to the support member 111. Figure 3 (as shown) and unlock bit ( Figure 2 The locking member 161 moves between the second position and the first position (as shown). When the locking member 161 is in the locked position, it connects with the transmission member 151 to lock the transmission member 151, so that the transmission member 151 is held in the second position or the first position. When the locking member 161 is in the unlocked position, the transmission member 151 is unlocked, so that the transmission member 151 can move between the second position and the first position.

[0133] Therefore, when the surgeon drives the transmission member 151 to the second position (or the first position) through the drive mechanism 152 of the drive assembly 15, and the connecting part 122 moves to the open position (or the closed position), the locking member 161 can be moved to the locking position to lock the transmission member 151, so that the connecting part 122 can be stably kept in the open position (or the closed position) without continuously applying external force to the drive mechanism 152, which is beneficial to improving the ease of operation of the prosthesis installer 10.

[0134] When it is necessary to operate the drive assembly 15 to move the connecting part 122 between the open position and the closed position, the locking member 161 is moved to the unlock position to unlock the transmission member 151, so that the transmission member 151 can move between the second position and the first position to drive the connecting part 122 to move between the open position and the closed position, which is very convenient to operate.

[0135] It should be noted that the locking member 161 and the support member 111 can be rotatably connected or slidably connected, as long as the locking member 161 can move between the locked position and the unlocked position relative to the support member 111.

[0136] In some embodiments, the locking member 161 includes a first locking portion 1611, and the transmission member 151 includes a second locking portion 1511. When the locking member 161 is in the locked position, the first locking portion 1611 and the second locking portion 1511 can be hooked together, thereby locking the transmission member 151. When the locking member 161 is in the unlocked position, the first locking portion 1611 and the second locking portion 1511 are disengaged, thereby unlocking the transmission member 151.

[0137] In this design, one of the first locking part 1611 and the second locking part 1511 may be provided with a hook part 1612, while the other of the first locking part 1611 and the second locking part 1511 may be provided with a hook groove 1512. When the locking member 161 is in the locked position, the hook part 1612 is inserted into the hook groove 1512 to lock the transmission member 151; when the locking member 161 is in the unlocked position, the hook part 1612 is disengaged from the hook groove 1512 to unlock the transmission member 151. By inserting the hook part 1612 into the hook groove 1512, the hook part 1612 abuts against the inner surface of the hook groove 1512, thereby restricting the sliding of the transmission member 151 relative to the locking member 161, thus achieving the locking of the locking member 161. The structure of the hook groove 1512 and the hook part 1612 is relatively simple, which helps to simplify the structure of the locking assembly and thus reduce the manufacturing cost of the prosthesis installer 10.

[0138] Specifically, the first locking part 1611 has a protruding hook part 1612 on the side facing the second locking part 1511, and the second locking part 1511 has a hook groove 1512 on the side facing the first locking part 1611. There are multiple hook grooves 1512, and these grooves are distributed sequentially along the first direction X. The hook part 1612 can hook onto any one of the hook grooves 1512. The hook part 1612 has a barbed structure; when it hooks onto the hook groove 1512, it restricts the movement of the transmission member 151 from the second position to the first position.

[0139] Alternatively, a hook groove 1512 can be provided on the side of the first locking part 1611 facing the second locking part 1511, and a hook part 1612 can be protruded on the side of the second locking part 1511 facing the first locking part 1611. Simply inserting the hook part 1612 into the hook groove 1512 and hooking it in place will restrict the movement of the transmission member 151 relative to the locking member 161 along the first direction X.

[0140] In some embodiments, the locking assembly 16 may further include a first elastic member 162 connected to the support member 111. The first elastic member 162 is connected to the locking member 161 and is used to drive the locking member 161 from the unlocked position to the locked position. Thus, the first elastic member 162 enables the locking member 161 to be stably held in the locked position, thereby enabling the locking member 161 to stably lock the transmission member 151.

[0141] The elastic force applied by the first elastic member 162 to the locking member 161 can be a pushing force or a pulling force, depending on the structure and installation position of the first elastic member 162. For example, the locking member 161 includes a hinge portion 1615 connected to the first locking portion 1611. This hinge portion 1615 is rotatably connected to the support member 111, allowing the locking member 161 to rotate between a locked position and an unlocked position. The locking member 161 also includes a force-receiving portion 1613 connected to the hinge portion 1615, located on the side of the hinge portion 1615 opposite to the first locking portion 1611. The first elastic member 162 is disposed between the force-receiving part 1613 and the support member 111. One end of the first elastic member 162 abuts against the support member 111, and the other end of the first elastic member 162 abuts against the force-receiving part 1613, thereby causing the first elastic member 162 to apply a pushing force to the force-receiving part 1613, pushing the locking member 161 to rotate from the unlocked position to the locked position.

[0142] In some embodiments, the locking member 161 further includes a button portion 1614 for receiving external force to drive the locking member 161 from the locked position to the unlocked position. When the surgeon needs to unlock the transmission member 151, external force can be applied to the button portion 1614, making the operation very convenient.

[0143] Specifically, the locking member 161 is located at the end of the support member 111 away from the connecting structure 12. When the locking member 161 is in the locked position, the force-bearing part 1613, the hinge part 1615, the first locking part 1611, and the button part 1614 are distributed sequentially in the direction away from the connecting structure 12. The end of the support member 111 away from the connecting structure 12 has clearance space for the button part 1614 to move.

[0144] This application embodiment also provides a prosthesis installer. The prosthesis installer 10 includes an installation component 11 and a drive component 15. The installation component 11 includes a support member 111 and a connecting structure 12. The connecting structure 12 is disposed at one end of the support member 111 along a first direction X. The connecting structure 12 includes a connecting portion 122, which is used to insert into the installation hole 221 of the prosthesis 20 and can move relative to the support member 111 between an open position and a closed position. When the connecting portion 122 is inserted into the installation hole 221 and is in the open position, it can abut against the inner circumferential surface of the installation hole 221, so that the connecting structure 12 is relatively fixed to the prosthesis 20 and can drive the prosthesis 20 to move. When the connecting portion 122 is inserted into the installation hole 221 and is in the closed position, it can separate from the inner circumferential surface of the installation hole 221 and disengage from the installation hole 221, so that the connecting structure 12 is separated from the prosthesis 20. The connecting structure 12 also includes a protective part 123, which has a receiving space 1231. When the connecting part 122 is in the retracted position, it is at least partially retracted into the receiving space 1231, so that the protective part 123 protects the connecting part 122.

[0145] The drive assembly 15 is provided on the support member 111. The drive assembly 15 is used to drive the connecting part 122 to move between the open position and the closed position. Before the connecting part 122 is inserted into the mounting hole 221, it is not necessary to operate the drive assembly 15 so that the connecting part 122 is inserted into the mounting hole 221 when it is in the closed position. After the drive member is inserted into the mounting hole 221, the drive assembly 15 is operated to drive the connecting part 122 to move from the closed position to the open position.

[0146] The structures of the mounting component 11 and the driving component 15 can be referred to in the above embodiments, and will not be repeated here.

[0147] This application also provides a prosthesis installer. The prosthesis installer 10 includes an installation component 11 and a drive component 15. The installation component 11 includes a support member 111 and a connecting structure 12. The connecting structure 12 is located at one end of the support member 111 along a first direction X. The connecting structure 12 includes two oppositely arranged connecting parts 122, which are hinged together by the same hinge axis 14. The two connecting parts 122 are used to insert into the mounting hole 221 of the prosthesis 20 and can rotate relative to the support member 111 between an open position and a closed position. When the two connecting parts 122 are in the open position, they can abut against the inner circumferential surface of the mounting hole 221, so that the connecting structure 12 is relatively fixed to the prosthesis 20 and can drive the prosthesis 20 to move. When the two connecting parts 122 are in the closed position, they can separate from the inner circumferential surface of the mounting hole 221 and disengage from the mounting hole 221, so that the connecting structure 12 is separated from the prosthesis 20.

[0148] The drive assembly 15 includes a transmission member 151 and a drive mechanism 152 disposed on the support member 111. The drive mechanism 152 is connected to the transmission member 151 and is used to drive the transmission member 151 to move between a first position and a second position. The transmission member 151 is rotatably connected to at least one connecting part 122. When the transmission member 151 moves from the first position to the second position, it drives at least one connecting part 122 to move from a closed position to an open position. When the transmission member 151 moves from the second position to the first position, it drives both connecting parts 122 to move from the open position to the closed position.

[0149] The installation component 11 and the driver component 15 can be referred to the corresponding embodiments described above, and will not be repeated here.

[0150] This application also provides a prosthesis in its embodiments. For example... Figure 1 , Figures 16 to 18 As shown, the prosthesis 20 includes a mounting hole 221 for the insertion of the connecting structure 12 of the prosthesis installer 10, so that the prosthesis installer 10 is relatively fixed to the connecting structure 12 and can move the prosthesis 20. Specific embodiments of the connecting structure 12 of the prosthesis installer 10 can be found in the various embodiments of the connecting structure 12 described above, and will not be repeated here.

[0151] The mounting hole 221 has an opening 222 formed on the surface of the prosthesis 20 for the insertion of the connecting structure 12. At least part of the inner circumferential surface of the mounting hole 221 is part of a second conical surface, and the diameter of the second conical surface gradually decreases from the bottom surface 223 of the mounting hole 221 to the opening 222.

[0152] Therefore, when the connecting portion 122 is inserted into the mounting hole 221 of the prosthesis 20 and abuts against the inner circumferential surface of the mounting hole 221, the force exerted by the inner circumferential surface of the mounting hole 221 on the abutting surface 1223 of the connecting portion 122 has a component force along the direction from the opening 222 to the bottom surface 223 of the mounting hole 221. Moreover, when the connecting portion 122 is in the open position, the maximum size of the portion of the connecting structure 12 located inside the mounting hole 221 is larger than the size of the opening 222 of the mounting hole 221, which helps to prevent the connecting structure 12 from coming out of the mounting hole 221 of the prosthesis 20. In addition, when the abutting surface 1223 of the connecting portion 122 of the connecting structure 12 of the prosthesis installer 10 is part of the first conical surface, the contact area between the inner circumferential surface of the mounting hole 221 and the abutting surface 1223 is larger, and the fit is tighter, which helps to improve the connection stability between the connecting structure 12 and the prosthesis 20.

[0153] In some embodiments, the cone angle α2 of the second conical surface can be greater than or equal to 2° to further improve the effect of the mounting hole 221 of the prosthesis 20 in preventing the connecting structure 12 from dislodging, making the connection between the connecting structure 12 and the prosthesis 20 more stable. The cone angle α2 of the second conical surface can be 3°, 5°, 10°, 20°, 30°, etc., and can be determined according to the structure of the mounting hole 221 and the connecting portion 122, and is not limited here.

[0154] Additionally, the cone angle α2 of the second conical surface can be less than or equal to 45° to avoid an excessively large cone angle α2, which would result in an excessively large dimension at the end of the mounting hole 221 away from the opening 222, leading to an excessively thin inner wall of the mounting hole 221 and affecting the structural strength of the prosthesis 20. The cone angle α2 of the second conical surface can be 8°, 15°, 25°, 35°, 40°, etc., depending on the structure of the mounting hole 221 and the connecting part 122, and is not limited here.

[0155] Understandably, with the size and depth of the opening 222 of the mounting hole 221 of the prosthesis 20 remaining constant, a larger cone angle α2 on the second conical surface results in a larger size of the end of the mounting hole 221 furthest from the opening 222. Consequently, the inner wall thickness of the mounting hole 221 becomes thinner, and the structural strength of the prosthesis 20 at the mounting hole 221 weakens, ultimately affecting the connection stability between the connection structure 12 of the prosthesis installer 10 and the prosthesis 20. By making the cone angle α2 of the second conical surface less than or equal to 45°, the impact of the mounting hole 221 on the structural strength of the prosthesis 20 can be reduced, which is beneficial to improving the connection stability between the connection structure 12 of the prosthesis installer 10 and the prosthesis 20.

[0156] In some preferred embodiments, the cone angle α2 of the second conical surface can be greater than or equal to 2° and less than or equal to 45°, so that the mounting hole 221 has a better anti-dislodgement effect on the connection structure 12 of the prosthesis installer 10 while minimizing the impact on the structural strength of the prosthesis 20.

[0157] In some embodiments, the roughness of the inner circumferential surface of the mounting hole 221 of the prosthesis 20 can be greater than or equal to 3.2 micrometers. Therefore, when the connecting portion 122 of the connecting structure 12 abuts against the inner circumferential surface of the mounting hole 221 of the prosthesis 20, the connecting portion 122 and the inner circumferential surface of the mounting hole 221 have a large frictional force, which can further improve the connection stability between the connecting structure 12 and the prosthesis 20. The roughness of the inner circumferential surface of the mounting hole 221 can be 3.5 micrometers, 3.8 micrometers, 4 micrometers, etc., and can be determined according to the structure of the connecting structure 12 and the mounting hole 221, and is not limited here.

[0158] In some embodiments, the depth of the mounting hole 221 of the prosthesis 20 can be greater than or equal to 7 mm to further improve the connection stability between the connection structure 12 of the prosthesis installer 10 and the prosthesis 20. The depth of the mounting hole 221 of the prosthesis 20 refers to the distance from the opening 222 of the mounting hole 221 to the bottom surface 223. The depth of the mounting hole 221 can be 8 mm, 10 mm, 11 mm, etc., and can be determined based on factors such as the shape of the mounting hole 221, the size of the prosthesis 20, and the shape of the connection structure 12; no limitations are imposed here.

[0159] In this embodiment, the prosthesis 20 may include a femoral stem or other implant for bone placement and having a mounting hole 221. Taking the femoral stem as an example: [Example of the prosthesis 20]. Figures 16 to 18 As shown, the prosthesis 20 may include a stem 21, a neck 22, and a connecting segment 23 connected in sequence. The end of the connecting segment 23 away from the neck 22 is used to connect to a femoral head prosthesis (not shown). The femoral head prosthesis is used to mate with the liner of the acetabular cup. The stem 21 is used for implantation into bone cement within the patient's bone. The neck 22 is used to connect to the connecting structure 12 of the prosthesis installer 10, thereby fixing the prosthesis 20 relative to the prosthesis installer 10.

[0160] A mounting hole 221 is provided on the side of the neck 22 opposite to the stem 21. The depth direction of the mounting hole 221 is substantially parallel to the length direction of the stem 21. The neck 22 includes two sides 225, which are distributed on both sides of the neck 22 along the second direction Y. The length direction of the connecting section 23 and the length direction of the stem 21 are substantially perpendicular to the second direction Y. The maximum distance between the two sides 225 is less than or equal to 12.2 mm to avoid the prosthesis 20 being too thick in the second direction Y, making it unsuitable for smaller patients. The distance between the two sides 225 of the neck 22 can be 12 mm, 11.5 mm, etc., and can be determined according to factors such as the material and structure of the prosthesis 20. No restrictions are imposed here.

[0161] In some embodiments, the minimum distance between the side surface 225 of the neck 22 and the inner peripheral surface of the mounting hole 221 can be greater than or equal to 2 mm, so as to ensure that the wall thickness between the side surface 225 of the neck 22 and the mounting hole 221 is thicker and stronger, thereby improving the connection stability between the connection structure 12 of the prosthesis 20 connector and the prosthesis 20.

[0162] The minimum distance between the side surface 225 of the neck 22 and the inner circumferential surface of the mounting hole 221 can be 2.2mm, 2.5mm, 3mm, etc., which can be determined according to the material, structure and other factors of the prosthesis 20, and is not limited here.

[0163] Alternatively, the minimum distance between the two sides 225 of the neck 22 and the inner circumferential surface of the mounting hole 221 can be greater than or equal to 2 mm, or the minimum distance between the inner circumferential surface of the mounting hole 221 on only one side 225 of the neck 22 can be greater than or equal to 2 mm. Of course, the former can further improve the structural strength of the prosthesis 20 at the mounting hole 221.

[0164] In some embodiments, such as Figures 16 to 18 As shown, the prosthesis 20 also includes at least one positioning hole 224, which is used for the insertion of the positioning portion 124 of the connecting structure 12 to restrict the rotation of the prosthesis 20 relative to the connecting structure 12. The positioning hole 224 and the mounting hole 221 can be located on the same side of the prosthesis 20, so that when the connecting portion 122 of the connecting structure 12 is inserted into the mounting hole 221 of the prosthesis 20, the positioning portion 124 of the connecting structure 12 is inserted into the positioning hole 224 of the prosthesis 20. Specifically, the positioning hole 224 is located on the side of the neck 22 of the prosthesis 20 opposite to the stem 21. The depth direction of the positioning hole 224 is substantially parallel to the depth direction of the mounting hole 221.

[0165] In some embodiments, the number of positioning holes 224 can be multiple, and multiple positioning holes 224 are used for the insertion of multiple positioning parts 124, thereby further improving the restriction effect on the rotation of the prosthesis 20 relative to the connecting structure 12. The multiple positioning holes 224 can be distributed sequentially along the circumference of the mounting hole 221. Specifically, there are two positioning holes 224, which are distributed on both sides of the mounting hole 221 along the extension direction of the connecting section 23.

[0166] This application also provides a prosthesis implantation system, which includes a prosthesis installer and a prosthesis. The specific structure of the prosthesis installer or frame is as described in the above embodiments. Since this prosthesis implantation system adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0167] The implant system 1 includes an implant mounter 10 and an implant 20. The implant mounter 10 is used to connect to the implant 20 and to move the implant 20. The implant mounter 10 includes any of the following implant mounters: and / or the implant 20 includes any of the following implant mounters:

[0168] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0169] The foregoing has provided a detailed description of a prosthesis, prosthesis installer, and prosthesis implantation system provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A prosthesis installer, characterized in that, include: The mounting assembly includes a support member and a connecting structure. The connecting structure is located at one end of the support member along a first direction. The connecting structure includes a connecting portion for insertion into a mounting hole of a prosthesis and is movable relative to the support member between an open position and a closed position. When the connecting portion is inserted into the mounting hole and is in the open position, it abuts against the inner circumferential surface of the mounting hole, thereby fixing the connecting structure relative to the prosthesis and enabling the prosthesis to move. When the connecting portion is inserted into the mounting hole and is in the closed position, it can separate from the inner circumferential surface of the mounting hole and disengage from the mounting hole, thereby separating the connecting structure from the prosthesis. A drive assembly is provided on the support member, the drive assembly being used to drive the connecting part to move between the extended position and the retracted position; The connecting structure further includes a protective part, which has a receiving space. When the connecting part is in the retracted position, it is at least partially retracted into the receiving space, so that the protective part protects the connecting part.

2. A prosthesis installer, characterized in that, include: The mounting assembly includes a support member and a connecting structure. The connecting structure is located at one end of the support member along a first direction. The connecting structure includes a connecting portion for insertion into a mounting hole of a prosthesis and is movable relative to the support member between an open position and a closed position. When the connecting portion is inserted into the mounting hole and is in the open position, it abuts against the inner circumferential surface of the mounting hole, thereby fixing the connecting structure relative to the prosthesis and enabling the prosthesis to move. When the connecting portion is inserted into the mounting hole and is in the closed position, it can separate from the inner circumferential surface of the mounting hole and disengage from the mounting hole, thereby separating the connecting structure from the prosthesis. A drive assembly is provided on the support member. The drive assembly is used to drive the connecting part to move between the extended position and the retracted position. Before the connecting part is inserted into the mounting hole, the drive assembly does not need to be operated so that the connecting part is inserted into the mounting hole when it is in the retracted position. After the connecting part is inserted into the mounting hole, the drive assembly is operated to drive the connecting part to move from the retracted position to the extended position. The connecting structure further includes a protective part, which has a receiving space. When the connecting part is in the retracted position, it is at least partially retracted into the receiving space, so that the protective part protects the connecting part.

3. A prosthesis installer, characterized in that, include: The mounting assembly includes a support member and a connecting structure. The connecting structure is located at one end of the support member along a first direction. The connecting structure includes two oppositely arranged connecting portions, which are hinged together by the same hinge axis. The two connecting portions are used to insert into the mounting hole of a prosthesis, and at least one of the connecting portions is rotatable relative to the support member between an open position and a closed position. When the two connecting portions are inserted into the mounting hole and at least one of the connecting portions is in the open position, the two connecting portions can abut against the inner circumferential surface of the mounting hole, so that the connecting structure is relatively fixed to the prosthesis and can drive the prosthesis to move. When the two connecting portions are inserted into the mounting hole and at least one of the connecting portions is in the closed position, the two connecting portions can separate from the inner circumferential surface of the mounting hole and disengage from the mounting hole, so that the connecting structure is separated from the prosthesis. A drive assembly includes a transmission member and a drive mechanism disposed on the support member. The drive mechanism is connected to the transmission member and is used to drive the transmission member to move between a first position and a second position. The transmission member is rotatably connected to at least one connecting portion that can move between the extended position and the retracted position. When the transmission member moves from the first position to the second position, it drives at least one connecting portion to move from the retracted position to the extended position. When the transmission member moves from the second position to the first position, it drives the two connecting portions to move from the extended position to the retracted position.

4. The prosthesis installer as described in claim 1 or 2, characterized in that, The protective part is used to separate the connecting part from the impactor; or, the protective part is used to absorb at least part of the impact force of the impactor.

5. The prosthesis installer as described in claim 1 or 2, characterized in that, The driving component is used to apply a driving force to the connecting part, driving the connecting part to move from the closed position to the open position; when the driving component cancels the driving force applied to the connecting part, the connecting part remains in the closed position.

6. The prosthesis installer as described in claim 5, characterized in that, The drive assembly includes a transmission member and a drive mechanism disposed on the support member. The drive mechanism is connected to the transmission member and is used to drive the transmission member to move between a first position and a second position. When the transmission member is in the first position, it avoids the connecting part, so that the connecting part is held in the retracted position. When the transmission member moves from the first position to the second position, the transmission member abuts against the connecting part and applies the driving force to push the connecting part from the retracted position to the extended position.

7. The prosthesis installer as described in claim 6, characterized in that, The prosthesis installer further includes a locking assembly, which includes a locking member movably connected to the support member. The locking member is movable relative to the support member between a locked position and an unlocked position. When the locking member is in the locked position, it is connected to the transmission member to lock the transmission member, thereby holding the transmission member in the second position or the first position. When the locking member is in the unlocked position, it unlocks the transmission member, allowing the transmission member to move between the second position and the first position.

8. The prosthesis installer as described in claim 7, characterized in that, The locking member includes a first locking part, and the transmission member includes a second locking part. One of the first locking part and the second locking part is provided with a hook part, and the other of the first locking part and the second locking part is provided with a hook groove. When the locking member is in the locked position, the hook part is inserted into the hook groove to lock the transmission member. When the locking member is in the unlocked position, the hook part is disengaged from the hook groove to unlock the transmission member.

9. The prosthesis installer as described in claim 7, characterized in that, The locking assembly further includes a first elastic element connected to the support member, the first elastic element being connected to the locking member and used to drive the locking member from the unlocked position to the locked position.

10. The prosthesis installer as described in claim 1 or 2, characterized in that, The protective part includes a plurality of first protective segments, which are distributed sequentially along the circumference of the protective part. The first protective segments extend along the first direction, and the accommodating space is formed between two adjacent first protective segments. And / or, The protective part includes a second protective section located on the side of the receiving space away from the support member.

11. The prosthesis installer as described in claim 10, characterized in that, The ends of the plurality of first protection sections away from the support member are respectively connected to the second protection section.

12. The prosthesis installer as described in claim 1 or 2, characterized in that, The connecting part includes a connecting end and a free end, which are distributed sequentially along a direction away from the support member, and the connecting end is connected to the main body of the connecting structure.

13. The prosthesis installer as described in claim 1 or 2, characterized in that, The connecting part is integrally formed with the main body of the connecting structure; the connecting part is elastic.

14. The prosthesis installer as described in claim 5, characterized in that, The connecting part and the protective part are integrally disposed and movably connected to each other. The connecting structure is provided with a second elastic member connected to the connecting part. When the connecting part moves from the retracted position to the extended position, the second elastic member undergoes elastic deformation to store elastic potential energy. When the driving component cancels the driving force applied to the connecting part, the second elastic member is used to release the elastic potential energy to drive the connecting part to move from the extended position to the retracted position.

15. The prosthesis installer as described in claim 1 or 2, characterized in that, The number of connecting parts is multiple, and the multiple connecting parts are distributed sequentially along the circumference of the protective part; the protective part includes multiple receiving spaces, and the multiple receiving spaces are arranged in a one-to-one correspondence with the multiple connecting parts.

16. The prosthesis installer as described in claim 3, characterized in that, The two connecting parts can rotate relative to each other in opposite directions around the hinge axis. The two connecting parts are respectively provided with strip-shaped holes. The length directions of the strip-shaped holes intersect each other and are respectively set at acute angles to the first direction. The connecting structure includes a connecting shaft installed in the two strip holes. The connecting shaft can move along the length direction of the strip holes. The transmission member is connected to the connecting shaft and is used to drive the connecting shaft to move along the first direction, so that the connecting shaft moves in the two strip holes to drive the connecting part to rotate relative to each other.

17. The prosthesis installer as described in any one of claims 1 to 16, characterized in that, The Rockwell hardness of the connecting structure is greater than the Rockwell hardness of the support member; and / or, The Rockwell hardness of the connecting structure is greater than or equal to 47.

18. The prosthesis installer as described in any one of claims 1 to 16, characterized in that, The connecting structure is detachably connected to the support member.

19. The prosthesis installer as described in any one of claims 1 to 16, characterized in that, The connecting portion includes an abutting surface for abutting against the inner circumferential surface of the mounting hole. The abutting surface is a portion of a first conical surface, the diameter of which gradually increases along the direction away from the support member.

20. The prosthesis installer as described in claim 19, characterized in that, The cone angle of the first conical surface is greater than or equal to 2°.

21. A prosthesis, characterized in that, The prosthesis includes a mounting hole for inserting a connecting structure of a prosthesis installer, so that the connecting structure is fixed relative to the prosthesis and can move the prosthesis; the mounting hole forms an opening on the surface of the prosthesis for inserting the connecting structure, and at least a portion of the inner circumferential surface of the mounting hole is part of a second conical surface, the diameter of the second conical surface gradually decreasing from the bottom surface of the mounting hole to the opening.

22. The prosthesis as claimed in claim 21, characterized in that, The cone angle of the second conical surface is greater than or equal to 2°.

23. The prosthesis as described in claim 22, characterized in that, The cone angle of the second conical surface is less than or equal to 45°.

24. The prosthesis as claimed in claim 21, characterized in that, The roughness of the inner circumferential surface of the mounting hole is greater than or equal to 3.2 micrometers.

25. The prosthesis as claimed in claim 21, characterized in that, The depth of the mounting hole is greater than or equal to 7 mm.

26. The prosthesis according to any one of claims 21 to 25, characterized in that, The prosthesis includes a femoral stem.

27. The prosthesis as claimed in claim 26, characterized in that, The prosthesis includes a stem, a neck, and a connecting segment connected in sequence. The end of the connecting segment away from the neck is used to connect to the femoral head prosthesis. The neck has the mounting hole on the side opposite to the stem. The neck includes two sides, which are distributed on both sides of the neck along a second direction. The length direction of the connecting segment and the length direction of the stem are respectively substantially perpendicular to the second direction. The maximum distance between the two sides is less than or equal to 12.2 mm.

28. The prosthesis as claimed in claim 27, characterized in that, The minimum distance between the side surface and the inner circumferential surface of the mounting hole is greater than or equal to 2 mm.

29. A prosthesis implantation system, characterized in that, The device includes a prosthesis installer and a prosthesis, wherein the prosthesis installer is used to connect to the prosthesis and to move the prosthesis; wherein the prosthesis installer includes the prosthesis installer according to any one of claims 1 to 20, and / or the prosthesis includes the prosthesis according to any one of claims 21 to 28.

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