CN211049633U - Clamp assembly, clamp element and knee joint fixing device - Google Patents

Abstract

The utility model relates to a anchor clamps subassembly, anchor clamps component and knee joint fixing device. The clamp assembly comprises a guide frame, and the guide frame comprises a through guide hole; the sliding block can slide along the guide hole and comprises a shaft hole; the distance adjusting shaft is movably arranged in the shaft hole; and the pressure head is arranged at the end part of the distance adjusting shaft and is hinged with the distance adjusting shaft. The utility model provides a clamp assembly is convenient for press from both sides tightly relevant operation position in the operation, does benefit to going on of operation.

Description

Clamp assembly, clamp element and knee joint fixing device

Technical Field

The utility model belongs to the medical equipment field, specificly relate to a anchor clamps subassembly, anchor clamps component and knee joint fixing device.

Background

Fixation of the knee joint is required in knee replacement surgery to avoid unnecessary trauma. The knee joint can be fixed manually by an assistant to manually support the leg of the patient, but the situation of insufficient experience and tired body inevitably occurs by manual work to influence the operation.

The fixation of the knee joint can also be performed by means of leg fixation devices, which are currently available for clamping the knee joint from the side, clamping the soft tissue at the knee joint. The clamping of the soft tissue makes the fixation of the knee joint not firm enough, and the shaking may occur during the operation, resulting in the failure of the operation.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, the utility model provides a clamp assembly, include: the guide frame comprises a through guide hole; the sliding block can slide along the guide hole and comprises a shaft hole; the distance adjusting shaft is movably arranged in the shaft hole; the pressure head is installed at the end part of the distance adjusting shaft and hinged with the distance adjusting shaft.

According to the utility model discloses an aspect, the roll adjustment axle includes axis body, check lock lever and locking screw, the axis body is mobilizable to be installed in the axle hole, the one end installation of axis body the pressure head, the other end installation locking screw, the check lock lever is installed in the inside cavity of axis body, its one end with the pressure head is articulated, and the other end supports locking screw.

According to an aspect of the utility model, the pressure head includes pressure disk and bulb, the pressure disk is installed on the bulb, the bulb is including being located spheroid in the axle body, the check lock lever include with spheroid complex curved surface.

According to an aspect of the utility model, the surface of pressure disk is equipped with a plurality of archs.

According to an aspect of the utility model, the slider includes guide part and block portion, the guide part is connected block portion, the guide part with block portion has a perfect understanding the shaft hole, the slider sets up when the guiding hole, the guide part is located in the guiding hole, block portion with the surface laminating of leading truck.

According to the utility model discloses an aspect, the leading truck laminating the block portion be equipped with first latch on the surface, the surface of block portion be equipped with the second latch that first latch corresponds.

The utility model also provides a fixture element, including two sets of as above the anchor clamps subassembly, it is two sets of the pressure head of anchor clamps subassembly sets up relatively.

The utility model also provides a knee joint fixing device, include: a base; the bracket is arranged on the base and used for supporting a knee joint; the femoral clamp comprises more than one pair of clamp assemblies and a first locking mechanism, the clamp assemblies are arranged on the top end of the support and are used for clamping the femur, and the guide frame of the clamp assembly of the femoral clamp is locked on the top end of the support by the first locking mechanism; a foot clamp movably mounted on the base for clamping the foot.

According to an aspect of the present invention, the foot clamp includes: the foot base frame is provided with clamping blocks on the side wall, the base is provided with a plurality of clamping grooves corresponding to the clamping blocks, and the clamping blocks are arranged in the clamping grooves; the foot support is fixedly connected with the foot frame and used for supporting the foot; a pair of brace assemblies as described above mounted on the foot chassis for bracing the ankle bones; and the guide frame of the clamp assembly of the foot clamp is locked on the foot underframe by the second locking mechanism.

According to one aspect of the present invention, the knee joint fixation device further comprises a tibial clamp, the tibial clamp comprising more than one pair of clamp assemblies as described above; the tibia clamp is arranged at the top end of the support and used for clamping tibia, and a guide frame of a clamp assembly of the tibia clamp is locked at the top end of the support through the first locking mechanism.

According to the utility model discloses an aspect, knee joint fixing device still includes drag hook and wiring frame, wiring frame installs on the support, wiring frame passes through the elastic thread and connects the drag hook for fixed soft tissue.

The utility model discloses the application of the scheme of each embodiment can carry out complete fixed to thighbone and/or shin bone in knee joint replacement operation, reduces the accidental injury to other tissues among the operation process, improves the operation precision.

Drawings

FIG. 1 is a perspective view of a clamp assembly according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a clamp assembly according to an embodiment of the present invention;

fig. 3 is a schematic view of a slider according to an embodiment of the present invention;

fig. 4 is a schematic view of a shaft according to an embodiment of the present invention;

figure 5 is a schematic view of a indenter according to an embodiment of the present invention;

fig. 6 is a schematic view of a knee joint fixing device according to an embodiment of the present invention;

fig. 7 is a schematic view of a base and a bracket according to an embodiment of the present invention;

fig. 8 is a schematic view of a foot clamp according to an embodiment of the present invention;

fig. 9 is a schematic view of a retractor and a wire binding frame according to an embodiment of the present invention.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it should be noted that unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection, either mechanically, electrically, or in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only for the purpose of illustrating and explaining the present invention and not for the purpose of limiting the same

First embodiment

Fig. 1 is a perspective view of a clamp assembly according to an embodiment of the present invention, and fig. 2 is a cross-sectional view of a clamp assembly according to an embodiment of the present invention. As shown in fig. 1 and 2, the present embodiment provides a clip assembly 100, the clip assembly 100 including: a guide frame 110, a slide block 120, a pitch shaft 130 and a ram 140.

The guide frame 110 is a strip, a through guide hole 111 is formed on the surface of the guide frame 110, and a mounting hole 113 is formed at one end of the guide frame 110 outside the guide hole 111 for fixedly mounting the guide frame 110.

The slider 120 is slidably installed in the guide hole 111 of the guide frame 110 and can slide along the guide hole 111. Fig. 3 is a schematic view of a slider according to an embodiment of the present invention, and as shown in fig. 3, a through shaft hole 121 is formed on the slider 12. The shaft hole 121 extends in a direction perpendicular to the sliding direction of the slider 120. Optionally, the slider 120 includes a guide portion 122 and an engaging portion 123, the guide portion 122 is connected to the engaging portion 123, and the guide portion 122 and the engaging portion 123 are integrally formed. The shaft hole 121 penetrates the guide portion 122 and the engaging portion 123. The width of the guide portion 122 is slightly smaller than the width of the guide hole 111, and the guide portion 122 is installed in the guide hole 111 to be movable in the guide hole 111. The width of the engaging portion 123 is larger than the width of the guide hole 111, the engaging portion 123 is located outside the guide frame 110, and the end surface of the engaging portion 123 close to the guide portion 122 is attached to the surface of the guide frame 110 after the guide portion 122 enters the guide hole 111.

More specifically, a first latch 112 is disposed around the guide hole 111 on the surface of the fit engaging portion 123 of the guide frame 110, and a second latch 124 corresponding to the first latch 112 is disposed on the surface of the engaging portion 123. When the slider 120 is pressed against the guide frame 110, the first latch 112 and the second latch 124 engage to prevent the slider 120 and the guide frame 110 from moving relative to each other.

The distance adjusting shaft 130 is movably installed in the shaft hole 121, that is, the distance adjusting shaft 130 can extend or retract along the axis of the shaft hole 121. According to an optional technical scheme of the utility model, roll adjustment axle 130 includes axis body 131, check lock lever 132 and locking screw 133.

Fig. 4 is a schematic view of a shaft according to an embodiment of the present invention, as shown in fig. 2 and 4, the shaft 131 is movably installed in the shaft hole 121. The shaft body 131 is connected with the shaft hole 121 through a screw thread, the shaft body 131 is rotated, and the shaft body 131 extends or retracts along the axis of the shaft hole 121 through the action of the internal and external screw threads.

The ram 140 is mounted on an end of the shaft body 131 of the pitch shaft 130 and is hinged to the shaft body 131. Specifically, the shaft body 131 is internally provided with a through cavity 1311, the cavity 1312 at one end of the shaft body has a larger diameter and is used for mounting the pressure head 140, the inner wall of the cavity at the other end of the shaft body is provided with an internal thread 1313, the shaft body 131 is arranged in the shaft hole 121 through the external thread, the locking screw 133 is arranged on the other side of the guide frame 110, namely, from the bottom of the guide part 122 through the internal thread 131, and the external thread of the locking screw 133 is matched with the internal thread 1313 of the shaft body 131. The locking rod 132 is disposed in the cavity 1311 of the shaft 131, one end of the locking rod 132 is hinged to the pressing head 140 in the cavity of the shaft 131, and the other end abuts against the locking screw 133 in the cavity of the shaft 131. The locking lever 132 can be pressed against the ram 140 by adjusting the locking screw 133 against the locking lever 132.

Fig. 5 is a schematic view of a pressing head according to an embodiment of the present invention, as shown in fig. 5, according to an alternative embodiment of the present invention, the pressing head 140 includes a ball head 141 and a pressing plate 142, and the pressing plate 142 is mounted on the ball head 141. The ball 141 includes a ball that fits into a cavity 1312 in the shaft 131, and the pressure plate 142 is located outside the end of the shaft 131. The locking lever 132 includes a curved surface that mates with the ball. The articulation of the ram 140 to the shaft body 131 of the pitch adjustment shaft 130 is achieved by means of the ball head 141. The locking screw 133 is screwed down, and the curved surface of the locking rod 132 presses the ball body of the ball head 141, so that the pressure head is locked.

According to an optional technical scheme of the utility model, the surface of pressure disk 142 is equipped with a plurality of archs 143. The number of the protrusions 143 in this embodiment is three, and optionally, the protrusions 143 are formed by screws, and the height of the protrusions 143 protruding from the surface of the pressure plate 142 is adjustable.

The utility model discloses a clamp subassembly can be used to fixed patient's operation position, uses in pairs, and the pressure head 140 of will measuring group clamp subassembly sets up relatively, can press from both sides tightly if realizing the bone to the operation position. Wherein the slide 120 is movable along the guide hole 111 to facilitate adjustment of the clamping position as required by the position of the particular surgical procedure. After the position setting is completed, the shaft body 131 is rotated, so that the shaft body 131 is screwed out, and the pressing head 140 is pressed on the bone surface. The reaction force of the ram causes the first latch 112 of the guide to contact the second latch 124 of the slide, securing the slide 120 to the guide 110. When the pressing head 140 contacts with the bone surface, under pressure, the ball can adaptively adjust the angle between the pressing head 140 and the bone surface to maximize the contact area. The locking screw 133 is tightened to lock the ram 140.

The embodiment also provides a clamp element, which comprises two groups of clamp assemblies, wherein the pressure heads of the two groups of clamp assemblies are oppositely arranged and used for clamping the position to be operated.

Second embodiment

Fig. 6 is a schematic view of a knee joint fixing device according to an embodiment of the present invention, and as shown in fig. 6, the embodiment provides a knee joint fixing device using the above-mentioned clamp assembly, and the knee joint fixing device includes a base 200, a bracket 300, a femur clamp 400 and a foot clamp 500.

Fig. 7 shows the structure of the base 200 and the stand 300. As shown in fig. 6 and 7, the base 200 is located at the lowermost end of the knee joint fixture to provide support for the other various components. Optionally, a notch is formed in the front end of the base 200, and two rows of opposite clamping grooves 201 are formed in two opposite side walls of the notch.

The bracket 300 is mounted on the base 200, and the bracket 300 includes a fixing post 301, a lifting post 302, and a supporting post 304. The fixing column 301 is vertically fixed on the base 200. The lifting column 302 is coaxially and liftably installed in the fixed column 301, and after the lifting column 302 is lifted to a proper position, the lifting column 302 can be locked by the hoop 303. The hoop 303 may be implemented using an existing cam handle type locking mechanism. A support post 304 is horizontally disposed at the top end of the lifting post 302, the support post 304 being used to support the knee joint.

The two ends of the supporting column 304 are coaxially provided with clamp shafts 305, respectively, and the free ends of the clamp shafts 305 are provided with locking mechanism mounting holes 306. Femoral clamps 400 for clamping the femur are installed at both sides of the top end of the bracket 300. Specifically, the femoral jig 400 includes more than one pair of the jig assemblies 100, and in this embodiment, the femoral jig 400 includes two sets of the jig assemblies 100. The two sets of clamp assemblies 100 are symmetrically mounted on both sides of the support column 304 by mounting holes 113 through the clamp shaft 305. The guide frame 110 of both clamp assemblies 100 of the femoral clamp 400 is rotatable about the clamp axis 305. The femoral jig 400 further includes a first locking mechanism 401, the first locking mechanism 401 is connected to the locking mechanism mounting hole 306 exposed outside the jig assembly 100, and the guide frame of the jig assembly 100 of the femoral jig 400 can be locked to the top end of the support 300 by the first locking mechanism 401, and most importantly, the angle between the support post 304 and the guide frame 110 of the locking jig assembly can be relatively locked. The first locking mechanism 401 of the present embodiment may be an existing cam handle type locking mechanism.

Fig. 8 is a schematic view of a foot clamp according to an embodiment of the present invention, and a foot clamp 500 for clamping a foot is removably mounted on a base 200 as shown in fig. 6 and 8. According to an alternative aspect of the present invention, the foot clamp 500 includes a foot frame 501, a foot support 502, more than one pair of clamp assemblies 100, and a second locking mechanism 504.

The foot clamp 500 in this embodiment includes two sets of clamp assemblies 100. Two sets of the brace assemblies 100 are mounted on opposite side walls of the foot chassis 501 via mounting shafts 507, respectively, for clamping the ankle. Two second locking mechanisms 504 are respectively installed on the installation shaft 507 and are positioned at the outer sides of the guide frames 110 of the corresponding jig assemblies, the guide frames 110 of the jig assemblies 100 of the foot jigs can be locked by the two second locking mechanisms 504, and the orientation of the guide frame 11 of the jig assembly 100 of the foot jig relative to the foot chassis 501 is locked. The second locking mechanism 504 of the present embodiment may be implemented using an existing cam handle type locking mechanism.

The outer parts of the side walls at the two sides of the foot underframe 501 are provided with clamping blocks 503, and the clamping blocks 503 are matched with a plurality of clamping grooves 201 arranged in the gaps of the base 200. When the foot clamp 500 is used, the fixture blocks 503 are installed in appropriate slots of the plurality of the card slots 201, and the feet of the patient can be matched with appropriate positions as required by clamping the fixture blocks 503 into different card slots 201.

The foot support 502 is fixedly installed on the foot underframe 501, and the foot support 502 adopts an ergonomic design to realize half-wrapping support of the foot. The bottom surface of the foot rest 502 supports the sole of the foot and the side walls of the foot rest 502 support the lower leg. The foot rest 502 is provided with straps 505 for securing the instep and straps 506 for securing the lower leg (and the tibia at the same time).

According to an optional aspect of the present invention, the knee joint fixation device further comprises a tibial clamp 600. The tibial jig 600 includes more than one pair of jig assemblies 100, and the tibial jig 600 is mounted on both sides of the top end of the tray 300 for clamping the tibia. The tibial clamp 600 may be mounted elsewhere on the tray 300 and not simultaneously with the femoral clamp on either side of the top end of the tray 300.

Specifically, the tibial clamp 600 includes two sets of clamp assemblies 100, the two sets of clamp assemblies of the tibial clamp 600 being located on either side of the support post 304. The guide frame of the tibial jig 600 is rotatably mounted on the jig shaft 305, and the guide frame of the jig assembly of the tibial jig 600 and the guide frame of the jig assembly of the femoral jig 400 can be simultaneously locked on both sides of the top support column 304 of the bracket 300 by the first locking mechanism 401. The tibial clamp 600 provides further fixation of the tibia.

Fig. 9 is a schematic view of a retractor and a cable tie holder according to an embodiment of the present invention, as shown in fig. 9, the knee joint fixing device further includes a retractor 710 and a cable tie holder 720. the retractor 710 is approximately L type and has two branch ends, an included angle between the two branch ends is greater than or equal to 90 degrees and less than 180 degrees, a first cable groove 712 is formed in the middle of one branch end, and a tip 711 of the other branch end is formed at the end of the other branch end and is upwardly tilted, i.e., the tip 711 is not in the same plane as the surface of the branch end, and the tip 711 extends in a direction opposite to a connecting corner of the two branch ends, and is inserted under a target bone by using the tip 720. the cable tie holder 720 includes a through hole 721 and a second cable groove 722, the second cable groove 722 is formed at least on one side of the through hole 721, the cable tie holder 720 is sleeved on the holder shaft 305 of the bracket 300 through the through hole 721, and the cable tie holder 720 can lock the clamp assembly 722 of the femoral clamp 400 and/or the tibial clamp 600 through the first locking mechanism 401.

The knee joint fixing device of the embodiment comprises the following steps:

1. the feet of the patient are placed in the foot support, and the soles and the rear parts of the lower legs are respectively contacted with the foot support. The instep and the lower side of the lower leg are respectively wound with the foot support together by using the binding belt.

2. The knee joint fixing device is placed on an operating table, and the clamping blocks of the foot clamp are clamped into the clamping grooves of the base.

3. The void between the foot, lower leg and foot rest is filled with a filler. If necessary, additional fixation of the ankle (ankle joint) can be made using the clip assembly on the foot clip: adjusting the position of a slide block of a clamp assembly of the foot clamp to enable the pressure head to be aligned with the ankle; the rotating shaft body is moved out, so that the pressure head is pressed on the ankle, and the deflection angle of the pressure head is not more than 15 degrees; the pressure head is locked to fix the ankle.

4. The height of the bracket is adjusted to enable the supporting column to be supported at the inner side of the knee joint.

5. The joint capsule of the knee joint is incised to fully expose the femur and tibia. The tip of the retractor is inserted under the femur and its end is connected to the cable tie by an elastic wire. The placing position of the knee joint fixing device and the height of the bracket can be further adjusted to adjust the positions of the far end of the femur and the near end of the tibia.

6. Adjusting the position of a sliding block of the femoral clamp to enable a pressure head to align with a target; rotating the shaft body to move out of the shaft, so that the pressure head is pressed on the far end of the femur, and the deflection angle of the pressure head is not more than 15 degrees; and locking the pressure head to fix the distal end of the femur. Under the common condition, the distal end of the femur is fixed by using a femur clamp, and the lower leg is fixed by matching with a binding band on a foot clamp, so that the fixing requirement of the operation can be met. If necessary, the proximal tibia can be fixed using a tibial jig for further fixation purposes.

The utility model discloses the application of the scheme of each embodiment can carry out complete fixed to thighbone and/or shin bone in knee joint replacement operation, reduces the operation in-process and to the accidental injury of other tissues, improves the operation precision, simple structure, and is with low costs.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. 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 (11)

1. A clamp assembly, comprising:

the guide frame comprises a through guide hole;

the sliding block can slide along the guide hole and comprises a shaft hole;

the distance adjusting shaft is movably arranged in the shaft hole;

the pressure head is installed at the end part of the distance adjusting shaft and hinged with the distance adjusting shaft.

2. The clamp assembly of claim 1, wherein the distance adjusting shaft comprises a shaft body, a locking lever and a locking screw, the shaft body is movably mounted in the shaft hole, the pressing head is mounted at one end of the shaft body, the locking screw is mounted at the other end of the shaft body, the locking lever is mounted in the inner cavity of the shaft body, one end of the locking lever is hinged with the pressing head, and the other end of the locking lever abuts against the locking screw.

3. The clamp assembly of claim 2, wherein said pressure head includes a pressure plate and a ball head, said pressure plate being mounted on said ball head, said ball head including a ball located within said shaft, said locking lever including a curved surface that mates with said ball.

4. The clamp assembly of claim 3, wherein the platen has a surface provided with a plurality of protrusions.

5. The clamp assembly of claim 1, wherein the slider includes a guide portion and a locking portion, the guide portion is connected to the locking portion, the guide portion and the locking portion have the through shaft hole, when the slider is disposed in the guide hole, the guide portion is located in the guide hole, and the locking portion is attached to the surface of the guide frame.

6. The clamp assembly of claim 5, wherein a first latch is disposed on a surface of the guide frame abutting the engaging portion, and a second latch corresponding to the first latch is disposed on a surface of the engaging portion.

7. A gripper assembly comprising two sets of gripper assemblies as claimed in any one of claims 1 to 6, the indenters of the two sets of gripper assemblies being disposed in opposition.

8. A knee fixation device, comprising:

a base;

the bracket is arranged on the base and used for supporting a knee joint;

a femoral jig comprising a pair of the jig assemblies as claimed in any one of claims 1 to 6 and a first locking mechanism, the femoral jig being mounted on the top end of the carriage for clamping a femur, the guide carriage of the jig assembly of the femoral jig being locked to the top end of the carriage by the first locking mechanism;

a foot clamp movably mounted on the base for clamping the foot.

9. The knee fixation device of claim 8 wherein the foot clamp includes a foot chassis, a foot rest, and a plurality of sets of the clamp assemblies;

the foot base frame is provided with clamping blocks on the side wall, the base is provided with a plurality of clamping grooves corresponding to the clamping blocks, and the clamping blocks are arranged in the clamping grooves;

the foot support is fixedly connected with the foot frame and used for supporting the foot;

a pair of brace assemblies as defined in any one of claims 1 to 6 mounted on said foot chassis for clamping against an ankle bone;

and the guide frame of the clamp assembly of the foot clamp is locked on the foot underframe by the second locking mechanism.

10. The knee fixation device of claim 8, further comprising a tibial jig including a pair of more jig assemblies as claimed in any one of claims 1 to 6;

the tibia clamp is arranged at the top end of the support and used for clamping tibia, and a guide frame of a clamp assembly of the tibia clamp is locked at the top end of the support through the first locking mechanism.

11. The knee joint fixing device according to claim 8, further comprising a hook and a wire binding frame, wherein the wire binding frame is mounted on the bracket, and the wire binding frame is connected to the hook through an elastic wire for fixing soft tissues.

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