CN221786576U - Ankle facet joint fusion guider - Google Patents

Abstract

The utility model discloses an ankle facet joint fusion guide, which comprises: the structure body plays a role of installation and support and is held by an operator, and a positioning hole and a mounting hole which are arranged in a penetrating way are arranged on the structure body. The locating hole is equipped with the locating lever that extends along its axial and sets up, and the locating lever is used for inserting in the joint gap of patient's foot, perhaps drives into patient's foot bone in order to realize ankle joint facet joint fusion director's location. The installation hole is equipped with the guide sleeve subassembly that extends along its axial and sets up, and the tip of guide sleeve subassembly is used for aiming at the hollow nail on the patient's bone tissue and puts into the point, still is equipped with the guiding hole that runs through along its axial in the guide sleeve subassembly and sets up, and the guiding hole is used for inserting the guide pin that is used for guiding hollow nail. The novel guide can enable the hollow nails to be driven into more easily, the driving position is accurate, the positioning precision is high, and the fixing pins for jointing the bone plates and temporarily acting are not needed to be additionally arranged, so that the guide has a simple integral structure and is easy to position and operate.

Description

Ankle facet joint fusion guide

Technical Field

The utility model relates to the technical field of medical devices, in particular to a foot and ankle facet joint fusion guide.

Background Art

Diseases such as rigid flat feet, navicular necrosis, and Charcot foot usually lead to talonavicular arthritis. Patients will feel pain on the inside of the foot when walking or standing. In severe cases, it will lead to lameness and affect the patient's walking function. Talonavicular joint fusion surgery can effectively treat talonavicular arthritis, relieve pain, and restore the patient's normal walking function.

In the prior art, talonavicular joint fusion can be achieved through a variety of fixation methods, including internal fixation screws, U-shaped fixation nails, bone plates combined with internal fixation screws, etc. However, due to the special structure of the small joints of the foot and ankle, when using internal fixation screws for talonavicular joint fusion surgery, the fixation screws (such as hollow screws) need to be passed through the joint surface at a certain angle, which makes it difficult to locate the direction of the screws; and for the fixation method of bone plates combined with internal fixation screws, due to the possibility of mutual interference between the two fixing materials, more accurate positioning is required, which requires higher experience of the surgeon.

Utility Model Content

The utility model provides a foot and ankle facet joint fusion guide to solve the technical problem of certain difficulty in positioning the direction of a fixing screw in the prior art.

The technical solution adopted by the utility model is as follows:

A foot and ankle facet joint fusion guide, comprising: a structural main body that serves as an installation support and is held by an operator, the structural main body being provided with a positioning hole and a mounting hole that are through-set; a positioning rod that is axially extended is installed in the positioning hole, the positioning rod is used to be inserted into the joint gap of the patient's foot, or driven into the patient's foot bone, so as to achieve the positioning of the foot and ankle facet joint fusion guide; a guide sleeve assembly that is axially extended is installed in the mounting hole, the end of the guide sleeve assembly is used to align with a hollow nail insertion point on the patient's bone tissue, and a guide hole that is axially extended is also provided in the guide sleeve assembly, the guide hole is used to insert a guide pin for guiding the hollow nail.

Furthermore, the structural body includes an arc-shaped connecting arm, and a first connecting seat and a second connecting seat respectively connected to the first end and the second end of the connecting arm; the positioning hole is set through the first connecting seat, the mounting hole is set through the second connecting seat, and the positioning hole is set perpendicular to the mounting hole.

Furthermore, the positioning rod is a positioning screw with an external thread processed on the outer circumferential surface, and the inner wall of the positioning hole is processed with an internal thread matching the external thread. The positioning screw thread is installed in the positioning hole to be inserted into the joint gap of the patient's foot to position the structural body; or, the positioning rod is a needle-shaped positioning needle, and the positioning needle is limitedly inserted into the positioning hole to be driven into the patient's foot bone to position the structural body.

Furthermore, the guide sleeve assembly includes a first guide sleeve fixedly inserted in the mounting hole along the axial direction; a first guide hole is provided in the first guide sleeve and penetrates the first guide sleeve along the axial direction, and the first guide hole is used to insert a first guide pin for guiding the hollow nail.

Furthermore, the guide sleeve assembly also includes a second guide sleeve axially inserted into the first guide hole, and the second guide sleeve is provided with a second guide hole axially penetrating therethrough; the second guide hole is coaxially connected to the first guide hole, and the aperture of the second guide hole is smaller than the aperture of the first guide hole, and the second guide hole is used to insert a second guide needle for guiding the hollow nail and having a diameter smaller than the diameter of the first guide needle.

Furthermore, the main body of the structure also includes a hand-held handle, which is fixed to the second end of the connecting arm; the guide sleeve assembly also includes a handle fixed to the first guide sleeve, and the handle is arranged above the hand-held handle.

Furthermore, the ankle facet joint fusion guide also includes a bone plate and a mounting frame for mounting the bone plate; the mounting frame is detachably fixed to the connecting arm; the bone plate is detachably connected to the lower end of the mounting frame, and the two ends of the bone plate are respectively provided with a first through hole and a second through hole set through the plate surface, so as to limit the two internal fixation screws that need to be driven into the bone tissue at both ends of the joint surface to be fused.

Furthermore, the mounting frame includes a connecting piece, a connecting screw and a connecting pin; an inwardly recessed bayonet is provided on the side wall of the connecting piece, and the connecting piece is clamped on the connecting arm through the bayonet; the connecting screw passes through the connecting piece and the connecting arm to detachably fix the connecting piece on the connecting arm; after the connecting pin passes through the connecting piece, its bottom end is connected to the bone plate to detachably install the bone plate.

Furthermore, the connecting piece includes a connecting tube and two connecting plates vertically connected to the upper and lower end surfaces of the connecting tube, and the spacing between the two connecting plates forms a bayonet; the two connecting plates are respectively provided with first connecting holes set through the plate surface, and at least one first connecting hole is a threaded hole, and after the end of the connecting screw passes through one of the first connecting holes and the through hole opened on the connecting arm, its end is threadedly connected to the other first connecting hole with an internal thread; the cantilever ends of the two connecting plates are also respectively provided with a second connecting hole set through the plate surface, and the connecting tube is also provided with a third connecting hole set axially therethrough, and the connecting pin is connected to the bone plate after passing through the two second connecting holes or the third connecting hole.

Furthermore, a bevel is provided on the inner wall surface of the connecting tube between the two connecting plates; the bevel is used to fit with the outer side of the connecting arm so that the bone plate and the connecting arm intersect at an angle, thereby avoiding the bone plate and the guide sleeve assembly being parallel.

The utility model has the following beneficial effects:

When the foot and ankle facet joint fusion guide of the present invention is used for surgical operation, the entire fusion guide device is first positioned by the positioning rod, and at the same time, the end of the guide sleeve assembly is used to press against the insertion point on the patient's bone tissue for hollow nail insertion, so that the entire device can be supported more stably under the premise of accurate positioning, so as to improve the stability of the guide needle insertion and the accuracy of the position, and then the insertion direction of the guide needle is positioned through the guide hole in the guide sleeve assembly to accurately drive the guide needle into the joint surface of the patient's foot that needs to be fused, so that the hollow nail is easier to drive and the insertion position is accurate and the positioning accuracy is high; on the other hand, when the foot and ankle facet joint fusion guide of the present invention is used for surgical operation, only the positioning rod is used to position the entire guide device, that is, the positioning rod is used to achieve separate positioning, so that the overall structure of the fusion guide of the present invention is simple and easy to position.

In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

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

FIG1 is a schematic diagram of a guide for ankle facet joint fusion according to a preferred embodiment of the present invention;

FIG2 is a second schematic diagram of the ankle facet joint fusion guide device according to a preferred embodiment of the present invention;

FIG3 is a third schematic diagram of the ankle facet joint fusion guide according to a preferred embodiment of the present invention;

FIG4 is a fourth schematic diagram of the ankle facet joint fusion guide device according to a preferred embodiment of the present invention;

5 is a schematic diagram of a connecting member in a foot and ankle facet joint fusion guide according to a preferred embodiment of the present invention;

FIG. 6 is a schematic diagram of a connecting pin in a foot and ankle facet joint fusion guide according to a preferred embodiment of the present invention.

Legend

10. Structural body; 11. Connecting arm; 12. First connecting seat; 13. Second connecting seat; 14. Handle; 20. Positioning rod; 30. Guide sleeve assembly; 31. First guide sleeve; 311. Positioning tooth; 32. Second guide sleeve; 33. Handle; 40. Bone plate; 401. First through hole; 402. Second through hole; 50. Mounting frame; 51. Connecting piece; 511. Connecting tube; 512. Connecting plate; 513. First connecting hole; 514. Second connecting hole; 515. Third connecting hole; 516. Inclined surface; 52. Connecting screw; 53. Connecting pin.

DETAILED DESCRIPTION

The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. However, the present invention can be implemented in a variety of different ways as defined and covered below.

1-2, a preferred embodiment of the utility model provides a foot and ankle facet joint fusion guide, comprising: a structural body 10 that serves as an installation support and is held by an operator, and a positioning hole and a mounting hole that are set through the structural body 10. A positioning rod 20 that extends along its axial direction is installed in the positioning hole, and the positioning rod 20 is used to be inserted into the joint gap of the patient's foot, or driven into the patient's foot bone, so as to achieve the positioning of the foot and ankle facet joint fusion guide. A guide sleeve assembly 30 that extends along its axial direction is installed in the mounting hole, and the end of the guide sleeve assembly 30 is used to align with the hollow nail insertion point on the patient's bone tissue. A guide hole that is set through its axial direction is also provided in the guide sleeve assembly 30, and the guide hole is used to insert a guide needle for guiding the hollow nail.

When the foot and ankle facet joint fusion guide of the present invention is used for surgical operation, the structural body 10 is first held to align the end of the guide sleeve assembly 30 with the hollow nail insertion point on the patient's bone tissue, and then the positioning rod 20 is inserted into the joint gap of the patient's foot, or directly driven into the patient's foot bone to position the fusion guide of the present invention, and then the structural body 10 is fine-tuned to align the end of the guide sleeve assembly 30 with the hollow nail insertion point on the patient's bone tissue and fit tightly; then the guide needle for guiding the hollow nail is inserted into the guide hole of the guide sleeve assembly 30, and then the guide needle is driven into the joint surface to be fused through an external device; finally, the foot and ankle facet joint fusion guide of the present invention is removed, and the hollow nail is inserted into the joint surface to be fused through the guide needle and the guide needle is removed.

When the foot and ankle facet joint fusion guide of the present invention is used for surgical operation, the entire fusion guide device is first positioned by the positioning rod 20, and at the same time, the end of the guide sleeve assembly 30 is used to press against the insertion point for the hollow nail on the patient's bone tissue, so that the entire device can be more stably supported under the premise of accurate positioning, so as to improve the stability of the guide needle insertion and the accuracy of the position, and then the guide needle is positioned through the guide hole in the guide sleeve assembly 30. The insertion direction of the guide needle is accurately inserted into the joint surface of the patient's foot that needs to be fused, thereby making it easier to insert the hollow nail and the insertion position is accurate with high positioning accuracy; on the other hand, when the foot and ankle facet joint fusion guide of the present invention is used for surgical operation, only the positioning rod 20 is used to position the entire guide device, that is, the positioning rod 20 is used to achieve single positioning, so that the overall structure of the fusion guide of the present invention is simple and easy to position.

Optionally, as shown in Fig. 1, the structural body 10 includes an arc-shaped connecting arm 11, and a first connecting seat 12 and a second connecting seat 13 respectively connected to the first end and the second end of the connecting arm 11. The positioning hole is set through the first connecting seat 12, the mounting hole is set through the second connecting seat 13, and the positioning hole is set perpendicular to the mounting hole. In this optional solution, the connecting arm 11 is arranged in an arc shape to avoid interference between the positioning rod 20 and the guide sleeve assembly 30; in this optional solution, the first connecting seat 12 and the second connecting seat 13 can be integrally formed with the connecting arm 11 to enhance the stability of the structure of the main body 10, or the first connecting seat 12 and the second connecting seat 13 can be detachably connected to the connecting arm 11 through connecting pieces, so as to facilitate the replacement of positioning holes and mounting holes with different inner diameters, thereby improving the adaptability of the main body 10; in this optional solution, the positioning hole and the mounting hole are arranged perpendicular to each other, so as to make it easier to align the end of the guide sleeve assembly 30 with the hollow nail insertion point on the patient's bone tissue and fit it tightly, and at the same time to prevent interference between the internal fixation screw and the guide pin after the subsequent setting of the bone plate.

Optionally, in the first embodiment of the foot and ankle facet joint fusion guide of the utility model, as shown in FIG1 , the positioning rod 20 is a positioning screw with an external thread processed on the outer circumferential surface, and an internal thread matching the external thread is processed on the inner wall of the positioning hole, and the positioning screw thread is installed in the positioning hole to be inserted into the joint gap of the patient's foot to position the structural body 10. When in use, the doctor inserts the positioning screw into the joint gap of the patient's foot to achieve the positioning of the device, and at the same time, because the positioning hole is threadedly connected to the positioning screw, the structural body 10 can be slightly rotated relative to the positioning screw by applying force to the structural body 10, so that the end of the guide sleeve assembly 30 can be aligned with the hollow nail insertion point on the patient's bone tissue and pressed against it.

Optionally, in the second embodiment of the foot and ankle facet joint fusion guide of the utility model, as shown in FIG2 , the positioning rod 20 is a positioning needle in a needle-like shape, and the positioning needle is inserted into the positioning hole to be used to insert into the patient's foot bone to position the structural body 10. When in use, the doctor inserts the positioning needle into the patient's foot bone to achieve the positioning of the device. Compared with the first embodiment, the positioning stability of the positioning needle is better and can meet the needs of positioning at any position; at the same time, since the positioning needle is inserted into the positioning hole, such as by a plastic piece fixed in the positioning hole, the structural body 10 can be slightly rotated relative to the positioning needle by applying force to the structural body 10, so that the end of the guide sleeve assembly 30 is aligned with the hollow nail insertion point on the patient's bone tissue and is tightly attached.

Optionally, as shown in FIG1 , the guide sleeve assembly 30 includes a first guide sleeve 31 fixedly inserted in the mounting hole along the axial direction. A first guide hole is provided in the first guide sleeve 31 and runs through it along the axial direction. The first guide hole is used to insert a first guide needle for guiding a hollow nail. When in use, the doctor adjusts the position of the first guide sleeve 31 by rotating the positioning screw, so that the end of the first guide sleeve 31 is aligned with the hollow nail insertion point on the patient's bone tissue and is close to it, and then the guide needle is inserted into the first guide hole and driven into the joint surface to be fused, so as to provide guidance for the subsequent insertion of the hollow nail, and a certain pressure is applied to the joint surface through the hollow nail to promote joint fusion. Preferably, as shown in FIG1 , a positioning tooth 311 is provided at the end of the first guide sleeve 31 for facilitating positioning when the guide needle is inserted.

Further, as shown in FIG. 1 , the guide sleeve assembly 30 further includes a second guide sleeve 32 inserted into the first guide hole along the axial direction, and a second guide hole is provided in the second guide sleeve 32 and penetrates the second guide sleeve 32 along the axial direction. The second guide hole is coaxially connected to the first guide hole, and the aperture of the second guide hole is smaller than the aperture of the first guide hole. The second guide hole is used to insert a second guide needle for guiding the hollow nail and having a diameter smaller than the diameter of the first guide needle. In actual use, by superimposing guide sleeves with guide holes of different diameters, the guide sleeve assembly 30 can realize positioning and guiding of guide needles of different diameters, thereby improving the adaptability of the device, and the overall structure of the device is simple.

Preferably, as shown in FIG1 , the structural body 10 further includes a hand-held handle 14, which is fixed to the second end of the connecting arm 11; the hand-held handle 14 is used for the convenience of the doctor to hold. The guide sleeve assembly 30 further includes a handle 33 fixed to the first guide sleeve 31, and the handle 33 is arranged above the hand-held handle 14 at a distance; when inserting the guide needle, holding the handle 33 can ensure the stability of the insertion process, improve the accuracy of the guide needle insertion, and reduce the difficulty of the guide needle insertion.

Optionally, as shown in Figures 3 and 4, the ankle facet joint fusion guide also includes a bone plate 40, and a mounting frame 50 for mounting the bone plate 40. The mounting frame 50 is detachably fixed to the connecting arm 11. The bone plate 40 is detachably connected to the lower end of the mounting frame 50, and the two ends of the bone plate 40 are respectively provided with a first through hole 401 and a second through hole 402 that penetrate the plate surface, so as to limit the two internal fixation screws that need to be driven into the bone tissue at both ends of the joint surface to be fused. When in use, the internal fixation screws are respectively driven into the bone tissue at both ends of the joint surface to be fused through the first through hole 401 and the second through hole 402, so as to fix the bone tissue at both ends of the joint surface to be fused, and further promote joint fusion. In this preferred embodiment, the two ends of the bone plate 40 are respectively provided with a plurality of first through holes 401 and second through holes 402 that are sequentially spaced along the axial direction thereof, so as to realize the need to drive the internal fixation screws into different positions of the bone tissue at both ends of the joint surface to be fused.

In this optional solution, as shown in Figures 3 and 4, the mounting frame 50 includes a connecting member 51, a connecting screw 52 and a connecting pin 53. A concave bayonet is provided on the side wall of the connecting member 51, and the connecting member 51 is clamped on the connecting arm 11 through the bayonet. The connecting screw 52 passes through the connecting member 51 and the connecting arm 11 to detachably fix the connecting member 51 on the connecting arm 11. After the connecting pin 53 passes through the connecting member 51, its bottom end is connected to the bone plate 40 to detachably install the bone plate 40. When the bone plate needs to be used in combination for fixation, the mounting frame 50 is fixedly connected to the structural body 10 by the connecting screw 52, and the mounting frame 50 is fixedly connected to the bone plate 40 by the connecting pin 53, and then the internal fixing screw is passed through the first through hole 401 and the second through hole 402 on the bone plate 40 and respectively driven into the bone tissue at both ends of the joint surface to be fused.

In a specific embodiment of this optional solution, as shown in FIG. 5 , the connecting member 51 includes a connecting tube 511 and two connecting plates 512 vertically connected to the upper and lower end surfaces of the connecting tube 511 , and the distance between the two connecting plates 512 forms a bayonet. The two connecting plates 512 are respectively provided with first connecting holes 513 that penetrate the plate surface, and at least one of the first connecting holes 513 is a threaded hole. After the end of the connecting screw 52 passes through one of the first connecting holes 513 and the through hole opened on the connecting arm 11, its end is threadedly connected with the other first connecting hole 513 with an internal thread; as shown in Figure 3, when the first connecting hole 513 on the lower connecting plate 512 is a threaded hole, the connecting screw 52 passes through two first connecting holes 513 from top to bottom in sequence, and is threadedly connected with the first connecting hole 513 at the bottom, thereby fixing the connecting member 51 on the connecting arm 11; as shown in Figure 4, when the first connecting hole 513 on the upper connecting plate 512 is a threaded hole, the connecting screw 52 passes through two first connecting holes 513 from bottom to top in sequence, and is threadedly connected with the first connecting hole 513 at the top, thereby fixing the connecting member 51 on the connecting arm 11.

As shown in Figure 6, the cantilever ends of the two connecting plates 512 are each provided with a second connecting hole 514 that passes through the plate surface, and the connecting tube 511 is also provided with a third connecting hole 515 that passes through it axially. The connecting pin 53 passes through the two second connecting holes 514 or the third connecting hole 515 and is connected to the bone plate 40; the bone plate 40 and the mounting frame 50 are detachably fixed by the connecting pin 53; the two fixed connection methods of the connecting pin 53 can change the relative angle between the bone plate 40 and the guide sleeve assembly 30, which is convenient for nailing from different angles.

Preferably, as shown in FIG5 , the inner wall surface of the connecting tube 511 between the two connecting plates 512 is provided with an inclined surface 516. The inclined surface 516 is used to fit with the outer side edge of the connecting arm 11 so that the bone plate 40 and the connecting arm 11 intersect at an angle, thereby preventing the bone plate 40 from being parallel to the guide sleeve assembly 30. The connecting tube 511 is provided with an inclined surface 516, which is used to prevent the mounting frame 50 and the connecting arm 11 from rotating relative to each other. At the same time, the axis of the guide sleeve assembly 30 is parallel to the axis of the first end of the connecting arm 11. The inclined surface 516 can ensure that the bone plate 40 and the guide sleeve assembly 30 are at a certain angle, thereby preventing the hollow nails inserted into the bone tissue from interfering with the internal fixation screws on the bone plate 40 that are screwed into the bone tissue.

The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims (10)

1. An ankle facet joint fusion guide, comprising:

The structure body (10) plays a role of installation and support and is held by an operator, and a positioning hole and a mounting hole which are arranged in a penetrating way are arranged on the structure body (10);

the positioning rod (20) is arranged in the positioning hole in an extending way along the axial direction of the positioning rod, and the positioning rod (20) is used for being inserted into a joint gap of a foot of a patient or being driven into a foot bone of the patient so as to realize the positioning of the ankle joint fusion guide;

The mounting hole is internally provided with a guide sleeve assembly (30) which is arranged along the axial extension of the mounting hole, the end part of the guide sleeve assembly (30) is used for aligning with a hollow nail placement point on bone tissue of a patient, the guide sleeve assembly (30) is internally provided with a guide hole which is arranged along the axial penetration of the guide sleeve assembly, and the guide hole is used for inserting a guide pin for guiding the hollow nail.

2. The ankle facet joint fusion guide according to claim 1, wherein,

The structure main body (10) comprises a connecting arm (11) which is arranged in an arc shape, and a first connecting seat (12) and a second connecting seat (13) which are respectively connected with a first end and a second end of the connecting arm (11);

the locating hole runs through first connecting seat (12) setting, and the mounting hole runs through second connecting seat (13) setting, and locating hole and mounting hole looks perpendicular setting.

3. The ankle facet joint fusion guide according to claim 2, wherein,

The positioning rod (20) is a positioning screw with external threads machined on the outer circular surface, the inner wall of the positioning hole is provided with internal threads matched with the external threads, and the positioning screw threads are arranged in the positioning hole and are used for being inserted into joint gaps of the feet of a patient to position the structural main body (10); or alternatively

The positioning rod (20) is a needle-shaped positioning needle, and the positioning needle is inserted into the positioning hole in a limiting manner so as to be used for being driven into the foot bone of a patient to position the structural body (10).

4. The ankle facet joint fusion guide according to claim 2, wherein,

The guide sleeve assembly (30) comprises a first guide sleeve (31) fixedly inserted into the mounting hole along the axial direction;

A first guide hole penetrating through the first guide sleeve (31) along the axial direction is formed in the first guide sleeve, and the first guide hole is used for inserting a first guide pin for guiding the hollow nail.

5. The ankle facet joint fusion guide according to claim 4, wherein,

The guide sleeve assembly (30) further comprises a second guide sleeve (32) axially inserted into the first guide hole, and a second guide hole axially penetrating the second guide sleeve (32) is formed in the second guide sleeve;

The second guide hole is coaxially communicated with the first guide hole, the aperture of the second guide hole is smaller than that of the first guide hole, and the second guide hole is used for inserting a second guide pin which is used for guiding the hollow nail and has a diameter smaller than that of the first guide pin.

6. The ankle facet joint fusion guide according to claim 5, wherein,

The structure main body (10) also comprises a hand-held handle (14), and the hand-held handle (14) is fixed with the second end of the connecting arm (11);

The guide sleeve assembly (30) further comprises a handle (33) fixed with the first guide sleeve (31), and the handle (33) is arranged above the hand-held handle (14) at intervals.

7. The ankle facet joint fusion guide according to claim 2, wherein,

The ankle facet joint fusion guide further comprises a bone plate (40) and a mounting frame (50) for mounting the bone plate (40);

the mounting frame (50) is detachably fixed on the connecting arm (11);

The bone fracture plate (40) is detachably connected to the lower end of the mounting frame (50), and the two ends of the bone fracture plate (40) are respectively provided with a first through hole (401) and a second through hole (402) which penetrate through the plate surface to limit two inner fixing screws which are required to be driven into bone tissues at two ends of a joint surface to be fused.

8. The ankle facet joint fusion guide according to claim 7, wherein,

The mounting frame (50) comprises a connecting piece (51), a connecting screw (52) and a connecting pin (53);

the side wall of the connecting piece (51) is provided with a concave bayonet, and the connecting piece (51) is clamped on the connecting arm (11) through the bayonet;

The connecting screw (52) penetrates through the connecting piece (51) and the connecting arm (11) to detachably fix the connecting piece (51) on the connecting arm (11);

The bottom end of the connecting pin (53) is connected with the bone plate (40) after penetrating through the connecting piece (51) so as to detachably mount the bone plate (40).

9. The ankle facet joint fusion guide according to claim 8, wherein,

The connecting piece (51) comprises a connecting cylinder (511) and two connecting plates (512) vertically connected to the upper end face and the lower end face of the connecting cylinder (511), and a bayonet is formed by the space between the two connecting plates (512);

the two connecting plates (512) are respectively provided with a first connecting hole (513) penetrating through the plate surface, at least one first connecting hole (513) is a threaded hole, and after one first connecting hole (513) is penetrated through the end part of the connecting screw (52) and a through hole formed in the connecting arm (11), the end part of the connecting screw is in threaded connection with the other first connecting hole (513) provided with internal threads;

The cantilever ends of the two connecting plates (512) are respectively provided with a second connecting hole (514) penetrating through the plate surface, a third connecting hole (515) penetrating through the connecting cylinder (511) along the axial direction is further arranged in the connecting cylinder (511), and the connecting pins (53) penetrate through the two second connecting holes (514) or the third connecting holes (515) to be connected with the bone fracture plate (40).

10. The ankle facet joint fusion guide according to claim 9, wherein,

An inclined surface (516) is arranged on the inner wall surface of the connecting cylinder (511) between the two connecting plates (512);

The inclined surface (516) is used for being attached to the outer side edge of the connecting arm (11) so that the bone plate (40) is intersected with the connecting arm (11) in an included angle, and the bone plate (40) is prevented from being parallel to the guide sleeve assembly (30).