Bone filling prosthesis

Abstract

The present invention provides a bone filling prosthesis, which includes a prosthesis block and an adjustment structure; the prosthesis block is spliced ​​by a plurality of plates to form a columnar structure, two adjacent plates are connected by a third elastic member, and the plurality of plates form a receiving channel; at least part of the adjustment structure is movably arranged in the receiving channel, and the adjustment structure is transmission-connected to the prosthesis block. By setting the adjustment structure, and making the adjustment structure drive the various plates constituting the prosthesis block to move in a direction perpendicular to the extension direction of the prosthesis block, and then changing the outer peripheral surface of the prosthesis block, the outer peripheral surface of the prosthesis block is adjusted, so that the prosthesis block can match the bone defects with different cavity sizes; it can be seen that the present bone filling prosthesis solves the problem that the bone filling prosthesis in the prior art cannot automatically adjust its outer peripheral surface.

Description

Technical Field

[0001] The invention relates to the field of medical filling prostheses, in particular to a bone filling prosthesis. Background Art

[0002] Bone defects are a common problem for orthopedic surgeons. Currently, bone defect filling prostheses are divided into one-piece and modular types. One-piece prostheses only physically fill the defect and do not have an adjustment function; modular prostheses are two or more components that are used together to achieve good initial stability.

[0003] However, in clinical use, the cavities of bone defects vary in size, and the peripheral surface of the filling prosthesis needs to match the cavity of the bone defect, that is, the peripheral surface of the filling prosthesis needs to be adjusted to match the cavity of the bone defect.

[0004] The existing modular prosthesis cannot automatically adjust the outer peripheral surface of the filling prosthesis according to the cavity of the bone defect, which causes great inconvenience to the clinical application of the modular filling prosthesis. Summary of the invention

[0005] The main purpose of the present invention is to provide a bone filling prosthesis to solve the problem that the bone filling prosthesis in the prior art cannot automatically adjust its peripheral surface.

[0006] In order to achieve the above-mentioned purpose, the present invention provides a bone-filling prosthesis, which includes a prosthesis block, which is composed of a plurality of plates spliced ​​together to form a columnar structure, wherein two adjacent plates are connected by a third elastic member, and the plurality of plates form a receiving channel; an adjustment structure, wherein at least a portion of the adjustment structure is movably arranged in the receiving channel, and the adjustment structure is transmission-connected to the prosthesis block so as to drive each plate to move in a direction perpendicular to the extension direction of the prosthesis block through the adjustment structure, so as to change the outer peripheral surface of the prosthesis block.

[0007] Further, the adjustment structure includes an adjustment component, which includes: an adjustment body, which is a columnar structure, and the cross-sectional area of ​​the adjustment body gradually decreases or increases along the direction from one end of the adjustment body to the other end of the adjustment body; wherein the cross-sectional area of ​​the adjustment body is the area of ​​the cross section of the adjustment body perpendicular to the extension direction of the adjustment body; wherein the adjustment body is reciprocatably arranged in the accommodating channel along its extension direction, and a plurality of plates are connected to the adjustment body, so that when the adjustment body reciprocates along its extension direction, each plate is driven by the adjustment body to move in a direction perpendicular to the extension direction of the prosthesis block.

[0008] Furthermore, the adjusting body has a first adjusting portion, the prosthesis block has a second adjusting portion, and the first adjusting portion and the second adjusting portion cooperate with each other so that the adjusting body can reciprocate along the extending direction of the adjusting body.

[0009] Furthermore, the adjustment structure also includes a driving device, which is arranged in the accommodating channel. The driving device includes a transmission member, which acts on the adjustment body to move the adjustment body relative to the prosthesis assembly to achieve mutual cooperation between the first adjustment part and the second adjustment part.

[0010] Furthermore, the transmission member is a rotating shaft, so that the rotating shaft drives the adjusting body to rotate; the adjusting assembly also includes: a fourth elastic member, the rotating shaft has an adjustment groove, the fourth elastic member is arranged in the adjustment groove and is connected to the rotating shaft; a connecting member, at least a part of the connecting member is arranged in the adjustment groove and is connected to the fourth elastic member, the adjusting body is connected to the connecting member, so that when the adjusting body reciprocates along the extension direction of the adjusting body, the connecting member moves along with the adjusting body.

[0011] Furthermore, the connecting member has a first transmission plane, and the inner wall surface of the adjusting groove includes a second transmission plane, and the first transmission plane is in close contact with the second transmission plane so that the rotating shaft drives the adjusting body to rotate through the connecting member.

[0012] Furthermore, the first adjustment part is an adjustment external thread, which is arranged on the outer peripheral wall of the adjustment body, and the second adjustment part is an adjustment internal thread matching the adjustment external thread, which is arranged on the inner wall of the accommodating channel. The adjustment body is screwed to each plate body through the mutual cooperation between the adjustment external thread and the adjustment internal thread.

[0013] Furthermore, there are multiple first transmission planes, which are arranged in sequence along the outer peripheral wall of the connecting member; there are multiple second transmission planes, which are arranged in sequence along the inner wall of the adjustment groove; and each second transmission plane is arranged in one-to-one correspondence with the multiple first transmission planes.

[0014] Furthermore, the adjustment assembly also includes a fixing member, which is arranged between the connecting member and the adjustment body, so that the connecting member and the adjustment body are connected through the fixing member.

[0015] Furthermore, the outer peripheral wall of the fixing member is flush with the outer peripheral wall of the transmission member.

[0016] Furthermore, the driving device also includes a driving component, which is an electric motor, the transmission member is connected to the output shaft of the electric motor, and the driving component is movably connected to the prosthesis assembly block.

[0017] Furthermore, the driving device also includes a driving component, which is movably connected to the prosthesis assembly. The driving component is a linear motor, and the transmission member is connected to the output shaft of the linear motor so that the linear motor drives the adjustment body to move reciprocatingly along the extension direction of the prosthesis assembly through the transmission member.

[0018] Furthermore, the first adjustment part is a first sliding surface, which is arranged on the outer peripheral wall of the adjustment body, and the second adjustment part is a second sliding surface, which is arranged on the inner wall of the accommodating channel. The first sliding surface and the second sliding surface can be slidably contacted to enable the adjustment body to slide relative to the prosthesis assembly.

[0019] Furthermore, an elastic bracket is provided between the driving component and at least one of the plurality of plate bodies, so that the driving component and the plate body are movably connected through the elastic bracket.

[0020] Furthermore, the bone-filled prosthesis also includes: a stress sensor, which is arranged on the outer wall surface of the prosthesis block to detect the pressure between the outer wall surface of the prosthesis block and the corresponding bone defect cavity wall; a processor, the stress sensor and the driving component are both connected to the processor, so that the stress sensor transmits the detected real-time pressure value to the processor, and the processor receives the real-time pressure value and controls the operating state of the driving component according to the received real-time pressure value.

[0021] Furthermore, the bone-filled prosthesis also includes a power supply, which is used to supply power to the driving component. The power supply is connected to the processor so that the processor is used to control the on and off state of the driving component.

[0022] Furthermore, the prosthesis assembly also has an installation cavity, and the processor and the power supply are both installed in the installation cavity.

[0023] Furthermore, the multiple plate bodies are all arc-shaped plates, and the multiple arc-shaped plates are spliced ​​together to form a cylindrical structure.

[0024] Furthermore, a plurality of third elastic members are disposed between two adjacent plates, and the plurality of third elastic members are arranged at intervals along the extension direction of the prosthesis assembly block.

[0025] Applying the technical solution of the present invention, in the bone-filling prosthesis of the present invention, the bone-filling prosthesis includes a prosthesis block and an adjustment structure; the prosthesis block is spliced ​​by a plurality of plates to form a columnar structure, two adjacent plates are connected by a third elastic member, and the plurality of plates form a receiving channel; at least part of the adjustment structure is movably arranged in the receiving channel, and the adjustment structure is connected to the prosthesis block in a transmission manner. By setting the adjustment structure and making the adjustment structure drive the various plates constituting the prosthesis block to move in a direction perpendicular to the extension direction of the prosthesis block, and then changing the outer peripheral surface of the prosthesis block, the outer peripheral surface of the prosthesis block is adjusted, so as to match the bone defects with different cavity sizes; it can be seen that the present bone-filling prosthesis solves the problem that the bone-filling prosthesis in the prior art cannot automatically adjust its outer peripheral surface; the outer peripheral surface of the prosthesis block is adjusted to make the outer peripheral wall of the prosthesis block fit and contact with the corresponding bone defect cavity wall, so that the bone-filling prosthesis can be more stably implanted in the corresponding bone defect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0027] Figure 1 A schematic diagram showing the external structure of a bone filling prosthesis according to an embodiment of the bone filling prosthesis of the present invention; and

[0028] Figure 2 Shows Figure 1 Internal cross-sectional view of the bone-filled prosthesis.

[0029] The above drawings include the following reference numerals:

[0030] 60. Bone filling prosthesis; 70. Prosthesis assembly; 71. Plate; 72. Accommodating channel; 74. Adjusting internal thread; 75. Mounting cavity; 42. Third elastic member; 43. Elastic bracket; 80. Adjusting structure; 81. Driving device; 811. Rotating shaft; 812. Adjusting slot; 813. Motor; 82. Adjusting assembly; 821. Adjusting body; 823. Fourth elastic member; 824. Connecting member; 825. Adjusting external thread; 826. Fixing member; 51. Processor; 52. Power supply; 53. Data cable. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] The present invention provides a bone filling prosthesis 60, please refer to Figure 1 and Figure 2 The bone filling prosthesis 60 includes a prosthesis block 70 and an adjustment structure 80; the prosthesis block 70 is spliced ​​by a plurality of plates 71 to form a columnar structure, two adjacent plates 71 are connected by a third elastic member 42, and the plurality of plates 71 surround a receiving channel 72; at least a portion of the adjustment structure 80 is movably disposed in the receiving channel 72, and the adjustment structure 80 is transmission-connected to the prosthesis block 70 so as to drive each plate 71 to move in a direction perpendicular to the extension direction of the prosthesis block 70 through the adjustment structure 80, so as to change the outer peripheral surface of the prosthesis block 70.

[0033] In the bone-filling prosthesis 60 of the present invention, an adjustment structure 80 is provided, and the adjustment structure 80 drives the various plates 71 constituting the prosthesis block 70 to move in a direction perpendicular to the extension direction of the prosthesis block 70, thereby changing the outer peripheral surface of the prosthesis block 70, so as to adjust the outer peripheral surface of the prosthesis block 70, so as to enable the prosthesis block 70 to match the bone defects with different cavity sizes; it can be seen that the bone-filling prosthesis 60 solves the problem in the prior art that the bone-filling prosthesis cannot automatically adjust its outer peripheral surface; the outer peripheral surface of the prosthesis block 70 is adjusted to make the outer peripheral wall of the prosthesis block 70 fit in contact with the corresponding bone defect cavity wall, so that the bone-filling prosthesis 60 can be more stably implanted in the corresponding bone defect.

[0034] In order to realize that the adjustment structure 80 drives each plate 71 to move in a direction perpendicular to the extension direction of the prosthesis assembly 70, the adjustment structure 80 includes an adjustment component 82, and the adjustment component 82 includes an adjustment body 821. The adjustment body 821 is a columnar structure, and the cross-sectional area of ​​the adjustment body 821 gradually decreases or increases along the direction from one end of the adjustment body 821 to the other end of the adjustment body 821; wherein the cross-sectional area of ​​the adjustment body 821 is the area of ​​the cross section of the adjustment body 821 perpendicular to the extension direction of the adjustment body 821; wherein the adjustment body 821 is reciprocatably arranged in the accommodating channel 72 along its extension direction, and multiple plates 71 are all connected to the adjustment body 821, so that when the adjustment body 821 reciprocates along its extension direction, each plate 71 is driven to move in a direction perpendicular to the extension direction of the prosthesis assembly 70 through the adjustment body 821. That is, during the reciprocating motion of the adjusting body 821 along its extension direction, when the cross-sectional area of ​​the adjusting body 821 is larger than the cross-sectional area of ​​the cavity of the accommodating channel 72 at the corresponding position thereof, the adjusting body 821 can generate a thrust on each plate in a direction perpendicular to the extension direction of the prosthesis assembly 70, so as to push each plate 71 to move in a direction away from the adjusting body 821, thereby enlarging the outer peripheral surface of the prosthesis assembly 70; when the cross-sectional area of ​​the adjusting body 821 is smaller than the cross-sectional area of ​​the cavity of the accommodating channel 72 at the corresponding position thereof, under the action of the third elastic member 42, each plate 71 can move in a direction close to the adjusting body 821, so as to reduce the outer peripheral surface of the prosthesis assembly 70; wherein, the cross-sectional area of ​​the cavity of the accommodating channel 72 is the area of ​​the cross section of the cavity perpendicular to the extension direction of the accommodating channel 72.

[0035] During the specific implementation process, along the direction from the top to the bottom of the prosthesis assembly 70, the cross-sectional area of ​​the adjustment body 821 gradually increases, and the cross-sectional area of ​​the partial cavity of the accommodating channel 72 for accommodating the adjustment body 821 gradually increases. Along the extension direction of the accommodating channel 72 or the extension direction of the adjustment body 821, the length of the partial cavity for accommodating the adjustment body 821 is greater than the length of the adjustment body 821, so that the partial cavity of the accommodating channel 72 forms a movement channel for the adjustment body 821; when the adjustment body 821 moves toward the top of the prosthesis assembly 70, the cross-sectional area of ​​the adjustment body 821 will be greater than the cross-sectional area of ​​the cavity of the accommodating channel 72 at the corresponding position, thereby increasing the outer peripheral surface of the prosthesis assembly 70; when the adjustment body 821 moves toward the bottom of the prosthesis assembly 70, the cross-sectional area of ​​the adjustment body 821 will be less than the cross-sectional area of ​​the cavity of the accommodating channel 72 at the corresponding position, thereby decreasing the outer peripheral surface of the prosthesis assembly 70.

[0036] Specifically, the adjustment body 821 has a first adjustment part, and the prosthesis assembly 70 has a second adjustment part. The first adjustment part and the second adjustment part cooperate with each other so that the adjustment body 821 can move reciprocatingly along the extension direction of the adjustment body 821, that is, under the mutual cooperation of the first adjustment part and the second adjustment part, the adjustment body 821 can move reciprocatingly along the extension direction of the adjustment body 821.

[0037] Specifically, the adjustment structure 80 also includes a driving device 81, which is arranged in the accommodating channel 72. The driving device 81 includes a transmission member, which acts on the adjustment body 821 to make the adjustment body 821 move relative to the prosthesis assembly 70 to achieve mutual cooperation between the first adjustment part and the second adjustment part.

[0038] In order to realize the cooperation between the transmission member and the adjustment body 821, the transmission member is a rotating shaft 811, so that the rotating shaft 811 drives the adjustment body 821 to rotate; that is, during the rotation of the adjustment body 821, the adjustment body 821 moves in its extension direction through the mutual cooperation of the first adjustment part and the second adjustment part; the adjustment assembly 82 also includes a fourth elastic member 823 and a connecting member 824, the rotation shaft 811 has an adjustment groove 812, the fourth elastic member 823 is arranged in the adjustment groove 812 and connected to the rotation shaft 811; at least a part of the connecting member 824 is arranged in the adjustment groove 812 and connected to the fourth elastic member 823, and the adjustment body 821 is connected to the connecting member 824, so that when the adjustment body 821 reciprocates along the extension direction of the adjustment body 821, the connecting member 824 moves with the adjustment body 821; that is, under the action of the fourth elastic member 823, the adjustment body 821 and the connecting member 824 can move relative to the rotating shaft 811 in the extension direction of the adjustment body 821.

[0039] In order to enable the rotating shaft 811 to stably drive the adjusting body 821 to rotate, the connecting member 824 has a first transmission plane, and the inner wall surface of the adjusting groove 812 includes a second transmission plane. The first transmission plane is in close contact with the second transmission plane to generate friction between the rotating shaft 811 and the connecting member 824. Under the action of the friction force, the rotating shaft 811 drives the connecting member 824 to rotate, thereby driving the adjusting body 821 to rotate.

[0040] In the specific implementation process, there are multiple first transmission planes, which are sequentially arranged along the outer peripheral wall of the connecting member 824, and there are multiple second transmission planes, which are sequentially arranged along the inner wall of the adjustment groove 812, and each second transmission plane is arranged one-to-one with the multiple first transmission planes. Optionally, the connecting member 824 is a multi-prism structure.

[0041] In this embodiment, the first adjustment part is an adjustment external thread 825, which is arranged on the outer peripheral wall of the adjustment body 821, and the second adjustment part is an adjustment internal thread 74 matching the adjustment external thread 825, which is arranged on the inner wall of the accommodating channel 72. The adjustment body 821 is screwed to each plate body 71 through the mutual cooperation of the adjustment external thread 825 and the adjustment internal thread 74. That is, under the mutual cooperation of the adjustment external thread 825 and the adjustment internal thread 74, when the adjustment body 821 rotates, the adjustment body 821 can move in its extension direction. Optionally, along the extension direction of the prosthesis assembly 70, the length of the adjustment internal thread 74 is greater than the length of the adjustment external thread 825.

[0042] During the specific implementation, the adjustment assembly 82 further includes a fixing member 826 , which is disposed between the connecting member 824 and the adjustment body 821 , so that the connecting member 824 and the adjustment body 821 are connected via the fixing member 826 .

[0043] In order to make the overall structure of the bone filling prosthesis 60 more compact, the outer peripheral wall of the fixing member 826 is flush with the outer peripheral wall of the transmission member.

[0044] In the specific implementation process, the driving device 81 also includes a driving component, which is a motor 813. The transmission member is connected to the output shaft of the motor 813 so that the motor 813 drives the transmission member to rotate through its output shaft; the driving component is movably connected to the prosthesis assembly 70.

[0045] Alternatively, the following design may be used to achieve reciprocating movement of the adjustment body 821 along its extension direction. The driving component is a linear motor, and the transmission member is connected to the output shaft of the linear motor, so that the linear motor drives the transmission member to reciprocate along the axial direction of the output shaft through its output shaft, and then the transmission member drives the adjustment body 821 to reciprocate along the axial direction of the output shaft of the linear motor; further, the axial direction of the output shaft of the linear motor is made to be the same direction as the extension direction of the prosthesis assembly 70, so that the prosthesis assembly 70 can reciprocate along its extension direction.

[0046] During the specific implementation process, the first adjustment part is a first sliding surface, which is arranged on the outer peripheral wall of the adjustment body 821, and the second adjustment part is a second sliding surface, which is arranged on the inner wall of the accommodating channel 72. The first sliding surface and the second sliding surface can be slidably contacted to enable the adjustment body 821 to slide relative to the prosthesis assembly 70.

[0047] In order to realize the assembly between the driving component and the prosthesis assembly 70, an elastic bracket 43 is arranged between the driving component and at least one of the plurality of plates 71, so that the driving component and the plate 71 are movably connected through the elastic bracket 43, that is, the plate connected to the driving component can move relative to the driving component in a direction perpendicular to the extension direction of the prosthesis assembly 70. Optionally, the driving component is arranged in the accommodating channel 72. Optionally, the elastic bracket 43 includes at least one elastic rod, one end of each elastic rod is fixed to the inner wall of the corresponding plate 71, and the other end of each elastic rod is used to connect with the driving component; or, the elastic bracket 43 includes at least one telescopic rod, one end of each telescopic rod is fixed to the inner wall of the corresponding plate 71, and the other end of each telescopic rod is used to connect with the driving component; wherein the inner wall of the plate 71 is the wall surface of the plate 71 facing the accommodating channel 72.

[0048] Specifically, the bone filling prosthesis 60 also includes a stress sensor and a processor 51. The stress sensor is arranged on the outer wall surface of the prosthesis block 70 to detect the pressure between the outer wall surface of the prosthesis block 70 and the corresponding bone defect cavity wall; the stress sensor and the driving component are both connected to the processor 51, so that the stress sensor transmits the detected real-time pressure value to the processor 51, and the processor 51 receives the real-time pressure value and controls the operating state of the driving component according to the received real-time pressure value. Optionally, the processor 51 and the driving component are connected via a data line 53.

[0049] During the specific implementation process, when the real-time pressure value received by the processor 51 is less than the preset pressure value, the processor 51 controls the driving component to start and run; when the real-time pressure value received by the processor 51 is greater than or equal to the preset pressure value, the processor 51 controls the driving component to stop running. At this time, the outer peripheral wall of the prosthesis block 70 is in contact with the corresponding bone defect cavity wall, thereby realizing the automation of the bone filling prosthesis 60 to adjust its outer peripheral surface.

[0050] In the specific implementation process, the bone filling prosthesis 60 also includes a power supply 52, which is used to power the driving component. The power supply 52 is connected to the processor 51 so that the processor 51 is used to control the power on and off state of the driving component. When the real-time pressure value received by the processor 51 is less than the preset pressure value, the processor 51 controls the driving component and the power supply 52 to be connected, thereby controlling the driving component to start and run; when the real-time pressure value received by the processor 51 is greater than or equal to the preset pressure value, the processor 51 controls the driving component and the power supply 52 to be disconnected, thereby controlling the driving component to stop running. Optionally, the power supply 52 and the processor 51 are connected via a data line 53.

[0051] In a specific implementation process, the prosthesis assembly 70 further has an installation cavity 75, and the processor 51 and the power supply 52 are both installed in the installation cavity 75. Optionally, the installation cavity 75 is provided on one of the multiple plates 71, and the plate 71 is also provided with a wire groove, and at least part of the data line 53 is accommodated in the wire groove, and the wire groove is connected to the installation cavity 75.

[0052] In the specific implementation process, the plurality of plates 71 are all arc-shaped plates, and the prosthesis block 70 formed by splicing the plurality of arc-shaped plates is a cylindrical structure. When the prosthesis block 70 is a cylindrical structure, the diameter of the prosthesis block 70 is adjusted while adjusting the outer circumference of the prosthesis block 70.

[0053] In a specific implementation process, a plurality of third elastic members 42 are disposed between two adjacent plates 71 . The plurality of third elastic members 42 are arranged at intervals along the extension direction of the prosthesis assembly 70 , which can further enhance the stability of the elastic connection between the two adjacent plates 71 .

[0054] During the specific implementation, the third elastic member 42 and the fourth elastic member 823 are both springs or elastic bands.

[0055] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0056] In the bone-filling prosthesis 60 of the present invention, the bone-filling prosthesis 60 includes a prosthesis block 70 and an adjustment structure 80; the prosthesis block 70 is spliced ​​by a plurality of plates 71 to form a columnar structure, two adjacent plates 71 are connected by a third elastic member 42, and the plurality of plates 71 surround a receiving channel 72; at least a portion of the adjustment structure 80 is movably disposed in the receiving channel 72, and the adjustment structure 80 is transmission-connected to the prosthesis block 70. By setting up an adjustment structure 80 and making the adjustment structure 80 drive the various plates 71 constituting the prosthesis block 70 to move in a direction perpendicular to the extension direction of the prosthesis block 70, thereby changing the outer peripheral surface of the prosthesis block 70, so as to adjust the outer peripheral surface of the prosthesis block 70, so as to enable the prosthesis block 70 to match the bone defects with different cavity sizes; it can be seen that the bone filling prosthesis 60 solves the problem that the bone filling prosthesis in the prior art cannot automatically adjust its outer peripheral surface; the outer peripheral surface of the prosthesis block 70 is adjusted to make the outer peripheral wall of the prosthesis block 70 fit in contact with the corresponding bone defect cavity wall, so that the bone filling prosthesis 60 can be more stably implanted in the corresponding bone defect.

[0057] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0058] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0059] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A bone filling prosthesis, characterized in that: include: A prosthesis assembly (70), wherein the prosthesis assembly (70) is formed by splicing a plurality of plates (71) to form a columnar structure, two adjacent plates (71) are connected via a third elastic member (42), and the plurality of plates (71) enclose a receiving channel (72); an adjusting structure (80), at least a portion of which is movably disposed in the accommodating channel (72), and the adjusting structure (80) is in transmission connection with the prosthesis block (70), so as to drive each of the plates (71) to move in a direction perpendicular to the extending direction of the prosthesis block (70) through the adjusting structure (80), so as to change the outer peripheral surface of the prosthesis block (70); The adjusting structure (80) comprises an adjusting component (82), wherein the adjusting component (82) comprises: an adjusting body (821), wherein the adjusting body (821) is a columnar structure, wherein the cross-sectional area of ​​the adjusting body (821) gradually decreases or increases along a direction from one end of the adjusting body (821) to the other end of the adjusting body (821); wherein the cross-sectional area of ​​the adjusting body (821) is the area of ​​a cross section of the adjusting body (821) perpendicular to the extension direction of the adjusting body (821); wherein the adjusting body (821) is reciprocally movable along its extension direction. The plurality of plates (71) are placed in the accommodating channel (72), and are connected to the adjusting body (821), so that when the adjusting body (821) reciprocates along its extension direction, the adjusting body (821) drives each of the plates (71) to move in a direction perpendicular to the extension direction of the prosthesis assembly (70); the adjusting body (821) has a first adjusting portion, and the prosthesis assembly (70) has a second adjusting portion, and the first adjusting portion and the second adjusting portion cooperate with each other, so that the adjusting body (821) can reciprocate along the extension direction of the adjusting body (821); A driving device (81), wherein the adjusting structure (80) further comprises a driving device (81), wherein the driving device (81) is arranged in the accommodating channel (72), and wherein the driving device (81) comprises a transmission member, wherein the transmission member acts on the adjusting body (821) so that the adjusting body (821) moves relative to the prosthesis assembly (70), thereby realizing mutual cooperation between the first adjusting portion and the second adjusting portion; A third elastic member (42), wherein the third elastic member (42) is disposed between two adjacent plates (71), and a plurality of the third elastic members (42) are arranged at intervals along the extension direction of the prosthesis block (70).

2. The bone filling prosthesis according to claim 1, characterized in that: The transmission member is a rotating shaft (811), so that the rotating shaft (811) drives the adjusting body (821) to rotate; the adjusting assembly (82) also includes: a fourth elastic member (823), the rotating shaft (811) having an adjustment groove (812), the fourth elastic member (823) being arranged in the adjustment groove (812) and connected to the rotating shaft (811); A connecting member (824), at least a portion of which is disposed in the adjusting groove (812) and connected to the fourth elastic member (823), and the adjusting body (821) is connected to the connecting member (824) so ​​that when the adjusting body (821) reciprocates along the extension direction of the adjusting body (821), the connecting member (824) moves along with the adjusting body (821).

3. The bone filling prosthesis according to claim 2, characterized in that: The connecting member (824) has a first transmission plane, and the inner wall surface of the adjusting groove (812) includes a second transmission plane. The first transmission plane is in close contact with the second transmission plane, so that the rotating shaft (811) drives the adjusting body (821) to rotate through the connecting member (824).

4. The bone filling prosthesis according to claim 3, characterized in that: There are multiple first transmission planes, and the multiple first transmission planes are arranged in sequence along the outer wall of the connecting member (824); there are multiple second transmission planes, and the multiple second transmission planes are arranged in sequence along the inner wall of the adjustment groove (812); each second transmission plane is arranged in one-to-one correspondence with the multiple first transmission planes.

5. The bone filling prosthesis according to claim 2, characterized in that: The first adjustment portion is an adjustment external thread (825), and the adjustment external thread (825) is arranged on the outer peripheral wall of the adjustment body (821). The second adjustment portion is an adjustment internal thread (74) matching the adjustment external thread (825), and the adjustment internal thread (74) is arranged on the inner wall of the accommodating channel (72). The adjustment body (821) is threadedly connected to each of the plate bodies (71) through the mutual cooperation between the adjustment external thread (825) and the adjustment internal thread (74).

6. The bone filling prosthesis according to claim 2, characterized in that: The adjustment assembly (82) further comprises: A fixing member (826), wherein the fixing member (826) is disposed between the connecting member (824) and the adjusting body (821), so that the connecting member (824) and the adjusting body (821) are connected via the fixing member (826).

7. The bone filling prosthesis according to claim 6, characterized in that: The outer peripheral wall of the fixing member (826) is flush with the outer peripheral wall of the transmission member.

8. The bone filling prosthesis according to claim 2, characterized in that: The driving device (81) further comprises a driving component, which is a motor (813). The transmission member is connected to the output shaft of the motor (813), and the driving component is movably connected to the prosthesis assembly block (70).

9. The bone filling prosthesis according to claim 1, characterized in that: The driving device (81) also includes a driving component, which is movably connected to the prosthesis assembly (70), and the driving component is a linear motor. The transmission member is connected to the output shaft of the linear motor, so that the linear motor drives the adjustment body (821) to move reciprocatingly along the extension direction of the prosthesis assembly (70) through the transmission member.

10. The bone filling prosthesis according to claim 1, characterized in that: The first adjustment portion is a first sliding surface, which is arranged on the outer peripheral wall of the adjustment body (821); the second adjustment portion is a second sliding surface, which is arranged on the inner wall of the accommodating channel (72); the first sliding surface and the second sliding surface are in slidable contact so that the adjustment body (821) slides relative to the prosthesis assembly (70).

11. The bone filling prosthesis according to claim 8 or 9, characterized in that: An elastic bracket (43) is provided between the driving component and at least one of the plurality of plate bodies (71), so that the driving component and the plate body (71) are movably connected via the elastic bracket (43).

12. The bone filling prosthesis according to claim 8 or 9, characterized in that: The bone filling prosthesis also includes: A stress sensor, the stress sensor being arranged on the outer wall surface of the prosthesis block (70) to detect the pressure between the outer wall surface of the prosthesis block (70) and the corresponding bone defect cavity wall; A processor (51), the stress sensor and the driving component are both connected to the processor (51), so that the stress sensor transmits the detected real-time pressure value to the processor (51), and the processor (51) receives the real-time pressure value and controls the operating state of the driving component according to the received real-time pressure value.

13. The bone filling prosthesis according to claim 12, characterized in that: The bone filling prosthesis also includes: A power supply (52) is used to supply power to the driving component, and the power supply (52) is connected to the processor (51) so that the processor (51) is used to control the on / off state of the driving component.

14. The bone filling prosthesis according to claim 13, characterized in that: The prosthesis assembly (70) further comprises an installation cavity (75), and the processor (51) and the power supply (52) are both installed in the installation cavity (75).

15. The bone filling prosthesis according to claim 1, characterized in that: The multiple plate bodies (71) are all arc-shaped plates, and the multiple arc-shaped plates are spliced ​​together to form a cylindrical structure.

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