CN111067610A - Orthopedic gasket - Google Patents

Abstract

The invention provides an orthopedic gasket, which comprises a first gasket and a second gasket, wherein the first gasket is provided with a first adjusting surface; the second gasket is provided with a second adjusting surface, and the first adjusting surface and the second adjusting surface are oppositely arranged; the first gasket is provided with a first matching part, the second gasket is provided with a second matching part matched with the first matching part, and the size of an included angle between the first adjusting surface and the second adjusting surface can be changed through the mutual matching action between the first matching part and the second matching part, so that the height of the orthopedic gasket is adjusted; for different bone seams, the bone seam cavities are different in size, and the orthopedic spacers can be stably inserted into the corresponding bone seam cavities by adjusting the height of the orthopedic spacers, so that the implantation effect of the orthopedic spacers is effectively ensured; therefore, the orthopedic gasket can adapt to the bone seams of different proximal tibial bones and has good universality.

Description

Orthopedic gasket

Technical Field

The invention relates to the field of medical treatment, in particular to an orthopedic gasket.

Background

Knee osteoarthritis is a common degenerative disease of old people, the onset of the disease is uneven knee settlement caused by osteoporosis, and the main clinical manifestations include arthralgia, deformity, stiffness, dysfunction and the like. According to the affected part and range of knee osteoarthritis, the knee osteoarthritis can be divided into a medial compartment type, a lateral compartment type, a patellofemoral type and a total joint type; among them, the medial compartment type osteoarthritis accounts for 74% of the primary osteoarthritis, and patients suffering from the arthritis are often accompanied by lower limb force line changes and varus deformity, which seriously affects the life quality of the patients.

The clinical common treatment method is to adopt a tibia high-position osteotomy to treat knee osteoarthritis, wherein the tibia is mainly resected through a high-position wedge to correct the lower limb force line and reduce the load of an inner compartment, so that the knee osteoarthritis treatment method is suitable for severe varus knee osteoarthritis, can relieve the development of osteoarthritis and retains the normal activity function of a knee joint.

Currently, the method for high tibial osteotomy commonly used in clinic transfers a force line from a worn medial compartment to a relatively normal lateral compartment by proximal tibial osteotomy to delay the destruction of the medial compartment and further prolong the service life of the knee joint so as to avoid the knee joint replacement operation.

High tibial osteotomies fall into two categories: the external closed wedge-shaped osteotomy and the internal open wedge-shaped osteotomy can pressurize and close the osteotomy end without bone grafting, but can cause the shortening of lower limbs, easy over-correction, need of fibula osteotomy, instability of upper tibiofibular joints, easy damage to total nerves and possibly even fascial compartment syndrome; the open wedge-shaped osteotomy can more accurately correct the lower limb force line, has relatively larger correction angle and the like, but the osteotomy end has long healing time, and the bone needs to be implanted when the bone gap is too large, so that the non-healing rate is higher.

In the process of bone grafting due to overlarge bone seams, an orthopedic gasket is usually used and is implanted into the bone seams; the existing orthopedic gasket is generally a gasket with fixed height, so that the gasket is difficult to adapt to various different sizes of bone seams well, and the problem of poor universality exists.

Disclosure of Invention

The invention mainly aims to provide an orthopedic gasket to solve the problem that the orthopedic gasket in the prior art is poor in universality.

In order to achieve the above object, the present invention provides an orthopedic insert for insertion into a gap between proximal tibia bones in a human body, the orthopedic insert comprising: the first gasket is provided with a first adjusting surface; the second gasket is provided with a second adjusting surface, and the first adjusting surface and the second adjusting surface are oppositely arranged; the first gasket is provided with a first matching part, the second gasket is provided with a second matching part matched with the first matching part, and the included angle between the first adjusting surface and the second adjusting surface is changed through the mutual matching between the first matching part and the second matching part so as to adjust the height of the orthopedic gasket.

The second gasket comprises a second base plate, the second base plate is provided with a first end and a second end along the insertion direction of the second base plate, and the second end of the second base plate is used for being connected with the first gasket; the first end of the second base plate is provided with a supporting part, and the second matching part is arranged on the supporting part; the plate surface of the second base plate facing the first gasket forms a first adjusting surface.

The first gasket comprises a first base plate, the first base plate is provided with a first end and a second end along the insertion direction of the first base plate, and the second end of the first base plate is connected with the second end of the second base plate; the first end of the first base plate is provided with an accommodating groove, and the accommodating groove corresponds to the support part in position so that at least part of the support part is inserted into the accommodating groove; the first matching part is arranged on the groove wall of the accommodating groove; the plate surface of the first base plate facing the second base plate forms a first adjusting surface.

Further, first cooperation portion is the ka tai structure, and second cooperation portion includes a plurality of joint grooves, along the distribution direction of first gasket and second gasket, and a plurality of joint grooves are arranged in proper order in the outer wall of supporting part to through making the selective joint in the joint inslot of difference of ka tai structure, with the contained angle of adjusting between first adjustment face and the second adjustment face.

Furthermore, the clamping platform structure is provided with a first clamping surface and a third clamping surface which are arranged at a first preset angle; each clamping groove is provided with a second clamping surface and a fourth clamping surface, the second clamping surface and the fourth clamping surface are arranged at a second preset angle, so that when the clamping table structure is clamped in the corresponding clamping groove, the first clamping surface is in contact with the corresponding second clamping surface in an attaching mode, and the third clamping surface is in contact with the corresponding fourth clamping surface in an attaching mode.

Further, the second end of the first base plate is provided with a boss, the second end of the second base plate is provided with a groove, and the boss is movably arranged in the groove.

Furthermore, the bosses are multiple, the grooves are multiple, and the grooves and the bosses are arranged in a one-to-one correspondence mode.

Furthermore, two bosses are arranged, the first base plate is a first U-shaped plate, and the two bosses are respectively positioned at two ends of the first U-shaped plate; the recess is two, and the second backing plate is the second U template, and two recesses are located the both ends of second U template respectively.

Further, the thickness of the first shim plate gradually increases in the insertion direction of the first shim plate.

Further, each joint groove is the bar groove, and the ka tai structure is the bar ka tai, and each joint groove all extends along the extending direction of the outer wall of supporting part with the ka tai structure.

Furthermore, the orthopedic gasket further comprises a movable plate, a first assembling hole is concavely formed in the end face of the first end of the first gasket, and a second assembling hole is formed in the movable plate, so that the movable plate and the first gasket are relatively fixed through a first fastener penetrating through the first assembling hole and the second assembling hole.

Furthermore, the movable plate comprises a first plate section, a second plate section and a third plate section, the second plate section is located between the first plate section and the third plate section, and the surface of the second plate section facing the first gasket is used for being attached to and contacted with the end surface of the second end of the first gasket; the first plate section is bent towards the direction close to the first gasket, and the third plate section is bent towards the direction away from the first gasket.

By applying the technical scheme of the invention, the orthopedic gasket comprises a first gasket and a second gasket, wherein the first gasket is provided with a first adjusting surface; the second gasket is provided with a second adjusting surface, and the first adjusting surface and the second adjusting surface are oppositely arranged; the first gasket is provided with a first matching part, the second gasket is provided with a second matching part matched with the first matching part, and the size of an included angle between the first adjusting surface and the second adjusting surface can be changed through the mutual matching action between the first matching part and the second matching part, namely, the maximum distance between the first adjusting surface and the second adjusting surface is changed, so that the height of the orthopedic gasket is adjusted; for different bone seams, the sizes of bone seam cavities are different, and the wall surface of the first gasket departing from the second gasket and the wall surface of the second gasket departing from the first gasket can be attached to the wall surface of the cavity at the corresponding bone seam by adjusting the height of the orthopedic gasket, so that the orthopedic gasket is stably inserted into the corresponding bone seam cavity, and the implantation effect of the orthopedic gasket is effectively ensured; therefore, the orthopedic gasket can adapt to the bone seams of different proximal tibial bones, has good universality, and can solve the problem of poor universality of the orthopedic gasket in the prior art.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic structural view of an orthopedic pad according to an embodiment of the invention;

FIG. 2 shows a schematic view of a first shim of the orthopedic shim of FIG. 1;

FIG. 3 shows a schematic view of a second shim of the orthopedic shim of FIG. 1;

FIG. 4 shows an exploded view of a first shim and a second shim of the orthopedic shim of FIG. 1;

FIG. 5 shows a cross-sectional view of a first shim of the orthopedic shim of FIG. 4;

FIG. 6 shows a cross-sectional view of a second shim of the orthopedic shim of FIG. 4;

FIG. 7 shows a cross-sectional interior view of the first shim assembled with the second shim of the orthopedic shim of FIG. 4;

FIG. 8 shows a schematic view of the porous structure of a first shim of the orthopedic shims of FIG. 1; and

fig. 9 is a schematic view showing the assembled structure of the orthopedic insert of fig. 1 implanted in a bone gap and assembled to a tibia in a human body.

Wherein the figures include the following reference numerals:

100. an orthopedic pad;

10. a first gasket; 11. a first backing plate; 12. accommodating grooves; 13. a clamping platform structure; 131. a first clamping surface; 132. a third clamping surface; 14. a boss; 15. a first assembly hole; 16. a porous structure; 17. a first adjusting surface;

20. a second gasket; 21. a second backing plate; 23. a support portion; 24. a clamping groove; 241. a second clamping surface; 242. a fourth clamping surface; 25. a groove; 27. a second adjusting surface;

30. a movable plate; 31. a first plate section; 32. a second plate section; 33. a third plate section; 34. a second assembly hole; 35. and (7) fixing holes.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

The invention provides an orthopedic insert 100 for insertion into a gap between proximal tibia bones, and referring to fig. 1 to 9, the orthopedic insert 100 includes a first insert 10 and a second insert 20, the first insert 10 having a first adjustment surface 17; the second gasket 20 is provided with a second adjusting surface 27, and the first adjusting surface 17 and the second adjusting surface 27 are oppositely arranged; wherein, the first spacer 10 is provided with a first matching portion, and the second spacer 20 is provided with a second matching portion matching with the first matching portion, so as to change the included angle between the first adjusting surface 17 and the second adjusting surface 27 through the mutual matching between the first matching portion and the second matching portion, so as to adjust the height of the orthopedic spacer 100.

In the orthopedic spacer 100 of the present invention, it is possible to change the size of the included angle between the first adjusting surface 17 and the second adjusting surface 27 by the mutual cooperation between the first fitting portion and the second fitting portion, i.e., to change the maximum distance between the first adjusting surface 17 and the second adjusting surface 27, so that the height of the orthopedic spacer 100 is adjusted; for different bone seams, the sizes of bone seam cavities are different, and the wall surface of the first gasket 10 departing from the second gasket 20 and the wall surface of the second gasket 20 departing from the first gasket 10 can be attached to the wall surface of the cavity at the corresponding bone seam by adjusting the height of the orthopedic gasket 100, so that the orthopedic gasket 100 is stably inserted into the corresponding bone seam cavity, and the implantation effect of the orthopedic gasket 100 is effectively ensured; therefore, the orthopedic pad 100 can adapt to the bone gap of different proximal tibial bones, has good versatility, and can solve the problem of poor versatility of the orthopedic pad in the prior art.

It should be noted that the height direction of the orthopedic insert 100 is the same as the distribution direction of the first insert 10 and the second insert 20.

Specifically, as shown in fig. 3, the second gasket 20 includes a second pad plate 21, the second pad plate 21 having a first end and a second end along an insertion direction of the second pad plate 21, the second end of the second pad plate 21 being used for connection with the first gasket 10; wherein, the first end of the second backing plate 21 is provided with a supporting part 23, and the second matching part is arranged on the supporting part 23; the plate surface of the second shim plate 21 facing the first shim 10 forms a first adjustment surface 17.

As shown in fig. 2, the first gasket 10 includes a first pad plate 11, the first pad plate 11 having a first end and a second end along an insertion direction of the first pad plate 11, the second end of the first pad plate 11 being connected to the second end of the second pad plate 21; wherein, the first end of the first backing plate 11 is provided with an accommodating groove 12, and the accommodating groove 12 corresponds to the position of the supporting part 23, so that at least part of the supporting part 23 is inserted into the accommodating groove 12; the first matching part is arranged on the groove wall of the accommodating groove 12; the plate surface of the first shim plate 11 facing the second shim plate 21 forms a first adjustment surface 17.

In a specific implementation process, the maximum distance between the first adjusting surface 17 and the second adjusting surface 27 is different by inserting the supporting portions 23 into the accommodating grooves 12 at different depths, so that the included angle between the first adjusting surface 17 and the second adjusting surface 27 is different.

As shown in fig. 5 to 7, in order to change the depth of the supporting portion 23 inserted into the accommodating groove 12, the first matching portion is the clamping structure 13, the second matching portion includes a plurality of clamping grooves 24, along the distribution direction of the first gasket 10 and the second gasket 20, the plurality of clamping grooves 24 are sequentially arranged on the outer wall of the supporting portion 23, so that the clamping structure 13 can be selectively clamped into different clamping grooves 24, that is, when the clamping structure 13 is clamped into different clamping grooves 24, the depth of the supporting portion 23 inserted into the accommodating groove 12 is different, and further, the included angle between the first adjusting surface 17 and the second adjusting surface 27 is adjusted.

In order to ensure the strength of the integral structure of the first gasket 10, the clamping structure 13 and the first pad plate 11 are integrally formed.

Specifically, the clamping structure 13 has a first clamping surface 131 and a third clamping surface 132, and the first clamping surface 131 and the third clamping surface 132 are disposed at a first predetermined angle; each of the clamping grooves 24 has a second clamping surface 241 and a fourth clamping surface 242, the second clamping surface 241 and the fourth clamping surface 242 are arranged at a second predetermined angle, so that when the clamping structure 13 is clamped in the corresponding clamping groove 24, the first clamping surface 131 is in contact with the corresponding second clamping surface 241, and the third clamping surface 132 is in contact with the corresponding fourth clamping surface 242, which enables the clamping structure 13 to be stably clamped in the corresponding clamping groove 24, thereby making the overall structure of the orthopedic gasket 100 more stable. Optionally, the first predetermined angle and the second predetermined angle are equal in magnitude.

In order to realize the connection between the second end of the first pad 11 and the second end of the second pad 21, as shown in fig. 2 to 4, the second end of the first pad 11 is provided with a boss 14, the second end of the second pad 21 is provided with a groove 25, the boss 14 is movably disposed in the groove 25, that is, when the maximum distance between the first end of the first pad 11 and the first end of the second pad 21 changes due to the different depths of the supporting portion 23 inserted in the receiving groove 12, the maximum distance between the second end of the first pad 11 and the second end of the second pad 21 can also change correspondingly, so that the included angle between the first adjusting surface 17 and the second adjusting surface 27 changes, and the included angle between the first adjusting surface 17 and the second adjusting surface 27 is adjusted.

In order to ensure the assembling effect between the second end of the first shim plate 11 and the second end of the second shim plate 21, a plurality of bosses 14 and a plurality of grooves 25 are provided, and the plurality of grooves 25 and the plurality of bosses 14 are arranged in a one-to-one correspondence, so that each boss 14 is movably inserted into the corresponding groove 25.

In this embodiment, there are two bosses 14, the first pad 11 is a first U-shaped plate, and the two bosses 14 are respectively located at two ends of the first U-shaped plate; the number of the grooves 25 is two, the second backing plate 21 is a second U-shaped plate, and the two grooves 25 are respectively positioned at two ends of the second U-shaped plate.

Specifically, along the insertion direction of the first shim plate 11, the thickness of the first shim plate 11 gradually increases, that is, the thickness of the first end of the first shim plate 11 is larger, so as to provide a deeper accommodating groove 12, and further to make the height of the supporting portion 23 matched with the accommodating groove 12 higher, so that more clamping grooves 24 can be provided, so as to increase the adjustment range of the included angle between the first adjustment surface 17 and the second adjustment surface 27, so that the orthopedic spacer 100 can adapt to more bone seams of proximal tibia bones, and further increase the versatility of the orthopedic spacer 100. Optionally, the surface of the first pad 11 away from the second pad 21 is an inclined surface.

Note that both the depth direction of the housing groove 12 and the height direction of the support portion 23 are the same as the distribution direction of the first shim 10 and the second shim 20.

In order to further ensure the assembling effect between the first end of the first cushion plate 11 and the first end of the second cushion plate 21, each of the clamping grooves 24 is a strip-shaped groove, the clamping structure 13 is a strip-shaped clamping table, and each of the clamping grooves 24 and the clamping structure 13 extends along the extending direction of the outer wall surface of the supporting portion 23, so that the contact area between the first clamping surface 131 and the corresponding second clamping surface 241 and the contact area between the third clamping surface 132 and the corresponding fourth clamping surface 242 are both larger, and the first end of the first cushion plate 11 and the first end of the second cushion plate 21 can be connected more stably, thereby further enhancing the stability of the overall structure of the orthopedic gasket 100; the extending directions of the clamping grooves 24 and the clamping platform structures 13 are perpendicular to the distribution directions of the first gasket 10 and the second gasket 20; the wall surface of the support portion 23 close to the center position of the second pad 21 is the inner wall surface of the support portion 23, the wall surface of the support portion 23 away from the center position of the second pad 21 is the outer wall surface of the support portion 23, and the inner wall surface of the support portion 23 is disposed opposite to the outer wall surface.

As shown in fig. 1 and 9, the orthopedic pad 100 further includes a movable plate 30, an end surface of the first end of the first pad 10 is concavely provided with a first mounting hole 15, and the movable plate 30 is provided with a second mounting hole 34, so that the movable plate 30 and the first pad 10 are relatively fixed by a first fastener inserted into the first mounting hole 15 and the second mounting hole 34; the orthopedic pad 100 can be more stably implanted into the gap of the proximal tibia bone of the human body by the provision of the movable plate 30; alternatively, the first fitting hole 15 communicates with the accommodation groove 12; the first fastener is a screw, and the first assembly hole 15 and the second assembly hole 34 are both threaded holes.

In order to enable the plate surface of the movable plate 30 far away from the first gasket 10 to be in contact with the cavity wall surface of the corresponding bone gap, the movable plate 30 comprises a first plate section 31, a second plate section 32 and a third plate section 33, the second plate section 32 is located between the first plate section 31 and the third plate section 33, the plate surface of the second plate section 32 facing the first gasket 10 is used for being in contact with the end surface of the second end of the first gasket 10, and a second assembling hole 34 is formed in the second plate section 32; the first plate segment 31 is curved toward the first insert 10 and the third plate segment 33 is curved away from the first insert 10 to better conform the orthopedic insert 100 to the shape of the corresponding proximal tibial bone.

In a specific implementation process, the first plate section 31 and the third plate section 33 are both provided with a plurality of fixing holes 35, so that the movable plate 30 is connected with the proximal tibia bone in the human body through second fasteners penetrating through the corresponding fixing holes 35.

In the specific implementation process, the movable plate 30 is made of titanium or a titanium alloy material.

In a specific implementation, as shown in fig. 8, a porous structure 16 is disposed on a surface of the first pad 11 away from the second pad 21, and the porous structure 16 includes a plurality of embedding pores, so that bone cells around the first pad 11 can be embedded into the plurality of embedding pores after the orthopedic pad 100 is implanted into a human body; similarly, a porous structure including a plurality of embedding pores is also provided on the plate surface of the second shim plate 21 away from the first shim plate 11, so that bone cells around the second shim plate 21 can be embedded into the plurality of embedding pores; this enables the orthopedic insert 100 to be implanted more stably in the corresponding proximal bone of the human tibia, thereby ensuring the implantation effect and effectively preventing the orthopedic insert 100 from coming out of the corresponding bone gap.

Optionally, the diameter of each insertion aperture ranges from 0.1mm to 2 mm.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

in the orthopedic pad 100 of the present invention, the orthopedic pad 100 includes a first pad 10 and a second pad 20, the first pad 10 having a first adjustment surface 17; the second gasket 20 is provided with a second adjusting surface 27, and the first adjusting surface 17 and the second adjusting surface 27 are oppositely arranged; wherein, the first gasket 10 is provided with a first matching part, the second gasket 20 is provided with a second matching part matched with the first matching part, and the size of the included angle between the first adjusting surface 17 and the second adjusting surface 27 can be changed through the mutual matching action between the first matching part and the second matching part, i.e. the maximum distance between the first adjusting surface 17 and the second adjusting surface 27 is changed, so that the height of the orthopedic gasket 100 is adjusted; for different bone seams, the sizes of bone seam cavities are different, and the wall surface of the first gasket 10 departing from the second gasket 20 and the wall surface of the second gasket 20 departing from the first gasket 10 can be attached to the wall surface of the cavity at the corresponding bone seam by adjusting the height of the orthopedic gasket 100, so that the orthopedic gasket 100 is stably inserted into the corresponding bone seam cavity, and the implantation effect of the orthopedic gasket 100 is effectively ensured; therefore, the orthopedic pad 100 can adapt to the bone gap of different proximal tibial bones, has good versatility, and can solve the problem of poor versatility of the orthopedic pad in the prior art.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (12)

1. An orthopedic insert for insertion into a gap in a proximal tibia bone in a human body, the orthopedic insert comprising:

a first shim (10), the first shim (10) having a first adjustment surface (17);

a second shim (20), the second shim (20) having a second adjustment surface (27), the first adjustment surface (17) and the second adjustment surface (27) being disposed opposite one another;

wherein the first gasket (10) is provided with a first matching part, the second gasket (20) is provided with a second matching part matched with the first matching part, so that the included angle between the first adjusting surface (17) and the second adjusting surface (27) is changed through the mutual matching between the first matching part and the second matching part, and the height of the orthopedic gasket is adjusted.

2. The orthopedic shim according to claim 1, characterized in that the second shim (20) includes:

a second shim plate (21), the second shim plate (21) having a first end and a second end along an insertion direction of the second shim plate (21), the second end of the second shim plate (21) being for connection with the first shim (10);

wherein a supporting part (23) is arranged at the first end of the second base plate (21), and the second matching part is arranged on the supporting part (23); the plate surface of the second base plate (21) facing the first shim (10) forms the first adjustment surface (17).

3. The orthopedic shim according to claim 2, characterized in that the first shim (10) comprises:

a first shim plate (11), the first shim plate (11) having a first end and a second end along an insertion direction of the first shim plate (11), the second end of the first shim plate (11) being connected to the second end of the second shim plate (21);

wherein, the first end of the first base plate (11) is provided with a containing groove (12), the containing groove (12) corresponds to the position of the supporting part (23), so that at least part of the supporting part (23) is inserted into the containing groove (12);

the first matching part is arranged on the groove wall of the accommodating groove (12); the plate surface of the first base plate (11) facing the second base plate (21) forms the first adjusting surface (17).

4. The orthopedic spacer according to claim 2, characterized in that the first fitting portion is a snap structure (13), and the second fitting portion includes a plurality of snap grooves (24), and the plurality of snap grooves (24) are sequentially arranged on the outer wall of the supporting portion (23) along the distribution direction of the first spacer (10) and the second spacer (20) so as to adjust the included angle between the first adjusting surface (17) and the second adjusting surface (27) by selectively snapping the snap structure (13) into the different snap grooves (24).

5. The orthopedic spacer of claim 4, characterized in that the catch structure (13) has a first catch face (131) and a third catch face (132), the first catch face (131) and the third catch face (132) being disposed at a first predetermined angle; each clamping groove (24) is provided with a second clamping surface (241) and a fourth clamping surface (242), the second clamping surface (241) and the fourth clamping surface (242) are arranged at a second preset angle, so that when the clamping platform structure (13) is clamped in the corresponding clamping groove (24), the first clamping surface (131) is in contact with the corresponding second clamping surface (241), and the third clamping surface (132) is in contact with the corresponding fourth clamping surface (242).

6. The orthopaedic shim according to claim 3, wherein the second end of the first shim plate (11) is provided with a boss (14) and the second end of the second shim plate (21) is provided with a recess (25), the boss (14) being movably arranged in the recess (25).

7. The orthopedic spacer of claim 6, characterized in that the boss (14) is plural, the groove (25) is plural, and the plural grooves (25) are provided in one-to-one correspondence with the plural bosses (14).

8. The orthopedic pad according to claim 7, characterized in that the number of the bosses (14) is two, the first shim plate (11) is a first U-shaped plate, and the two bosses (14) are respectively positioned at two ends of the first U-shaped plate; the number of the grooves (25) is two, the second base plate (21) is a second U-shaped plate, and the two grooves (25) are respectively located at two ends of the second U-shaped plate.

9. The orthopaedic shim according to claim 3, wherein the thickness of the first shim plate (11) increases gradually in the direction of insertion of the first shim plate (11).

10. The orthopedic spacer according to claim 4, characterized in that each of the snap-in grooves (24) is a strip-shaped groove, the catch structures (13) are strip-shaped catches, and each of the snap-in grooves (24) and the catch structures (13) extends in the extension direction of the outer wall surface of the support portion (23).

11. The orthopedic spacer of claim 1 further comprising:

the movable plate (30) is provided with a first assembling hole (15) in a concave mode on the end face of the first end of the first gasket (10), a second assembling hole (34) is formed in the movable plate (30), and the movable plate (30) and the first gasket (10) are fixed relatively through a first fastener penetrating through the first assembling hole (15) and the second assembling hole (34).

12. The orthopedic shim according to claim 11, characterized in that the mobile plate (30) comprises a first plate section (31), a second plate section (32) and a third plate section (33), the second plate section (32) being located between the first plate section (31) and the third plate section (33), the plate face of the second plate section (32) facing the first shim (10) being intended for abutting contact with the end face of the second end of the first shim (10); the first plate section (31) is bent in a direction close to the first gasket (10), and the third plate section (33) is bent in a direction away from the first gasket (10).

Images