CN113197616A - Auxiliary device for ankle osteotomy - Google Patents
Auxiliary device for ankle osteotomy Download PDFInfo
- Publication number
- CN113197616A CN113197616A CN202110515201.5A CN202110515201A CN113197616A CN 113197616 A CN113197616 A CN 113197616A CN 202110515201 A CN202110515201 A CN 202110515201A CN 113197616 A CN113197616 A CN 113197616A
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- Prior art keywords
- plate
- osteotomy
- rotating plate
- supporting top
- top plate
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1657—Bone breaking devices
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/1662—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body
- A61B17/1682—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans for particular parts of the body for the foot or ankle
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1732—Guides or aligning means for drills, mills, pins or wires for bone breaking devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1739—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body
- A61B17/1775—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body for the foot or ankle
Abstract
The invention provides an ankle osteotomy aid, comprising: an ankle osteotomy aid comprising: the left side and the right side of the supporting top plate are respectively connected with the two supporting plates through a first screw, the rotating plate is rotatably connected to the lower portion of the supporting top plate, the first moving plate is movably connected to the lower portion of the rotating plate, and the second moving plate is connected with the first moving plate, so that the second moving plate moves in the front and rear directions relative to the first moving plate; the advantages are that: the connection design of the rotating plate and the supporting top plate enables the osteotomy device to rotate between 0-45 degrees on the horizontal plane, and improves the operation accuracy.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to an auxiliary device for ankle osteotomy.
Background
In the ankle replacement surgery, the accuracy of the osteotomy operation directly affects the effect of the replacement surgery. An accurate osteotomy procedure allows better ankle replacement. For example, the osteotomy device in the SATR ankle joint replacement operation mainly utilizes a simple force line positioning and kirschner wire fixing mode to carry out osteotomy operation through an osteotomy block plane at the front end.
It is known that current state of the art ankle osteotomy devices only determine the force line location in one direction, but intraoperative determination of the patient force line requires both sagittal and coronal determinations. The fixing mode of the kirschner wire cannot fix the osteotomy plane better and is easy to loosen. The osteotomy plate without the limited degree of freedom is easy to generate osteotomy errors, greatly influences the precision of osteotomy in the operation, and is easy to influence the effect of implanting the joint replacement prosthesis.
Disclosure of Invention
The invention provides an auxiliary device for ankle joint osteotomy, which aims to at least overcome the technical defects, optimize the positioning osteotomy of a sagittal plane and a coronal plane of an ankle joint, limit and fix an osteotomy plate, prevent osteotomy errors, improve osteotomy precision and provide a better implantation environment for implantation of an ankle joint prosthesis.
In order to achieve the above purpose, the invention provides the following technical scheme:
an ankle osteotomy aid comprising: the left side and the right side of the supporting top plate are respectively connected with the two supporting plates through a first screw, the rotating plate is rotatably connected to the lower portion of the supporting top plate, the first moving plate is movably connected to the lower portion of the rotating plate, and the second moving plate is connected with the first moving plate, so that the second moving plate moves in the front and rear directions relative to the first moving plate;
wherein the rotating plate rotates in a range of 0 to 45 ° on a horizontal plane with respect to the supporting top plate; the first moving plate moves in the left and right directions relative to the rotating plate; the second moving plate is used for fixing the osteotomy plate.
Preferably, the middle of the upper portion of the supporting plate is provided with a first threaded hole for the first screw to pass through, and the supporting top plate is provided with a second threaded hole corresponding to the first threaded hole, so that the first screw sequentially passes through the first threaded hole and the second threaded hole and then connects and fixes the supporting plate and the supporting top plate.
Furthermore, a positioning hole is symmetrically formed in the supporting plate on two sides of the first threaded hole, so that the inserting columns arranged at two ends of the supporting top plate are inserted into the positioning hole and used for positioning and connecting the supporting plate and the supporting top plate.
Furthermore, a first locking hole matched with the first locking screw, two first visual windows arranged in parallel at intervals, a second locking hole and a first U-shaped groove with a downward opening are vertically formed in the supporting top plate, and the first locking hole is located on one side of the supporting top plate, so that the first locking screw penetrates through the supporting top plate and then abuts against the upper end face of the rotating plate; the two first visual windows are positioned in the center of the supporting top plate, the second locking hole is positioned between the two first visual windows, and the center lines of the two first visual windows are superposed with the center lines of the supporting top plate and the second locking hole;
an arc-shaped groove is symmetrically formed in the left side and the right side of the first U-shaped groove, arc-shaped protruding portions matched with the arc-shaped grooves are respectively arranged on the left side and the right side of the rotating plate, and a gap is formed between the inner side wall of each arc-shaped groove and the butt-joint surface of each protruding portion, so that the rotating plate rotates on the horizontal plane relative to the supporting top plate.
Furthermore, the rotating plate is also provided with a third locking hole corresponding to the second locking hole and two obliquely arranged fourth locking holes positioned on the front side wall and the rear side wall of the rotating plate, the third locking hole vertically penetrates through the rotating plate, and a second locking screw sequentially penetrates through the second locking hole and the third locking hole and is used for locking and fixing the supporting top plate and the rotating plate;
and a third locking screw penetrates through the fourth locking hole to connect the rotating plate and the second moving plate.
Preferably, one surface of the rotating plate facing the first moving plate is provided with a second U-shaped groove with a U-shaped longitudinal section and a downward opening direction, the front side and the rear side of the second U-shaped groove are symmetrically provided with a first sliding groove along the length direction of the rotating plate, and the upper parts of the front side wall and the rear side wall of the upper end of the first moving plate are provided with a first protruding part matched with the first sliding groove, so that the first protruding part moves left and right relative to the first sliding groove.
Furthermore, a third U-shaped groove with a downward opening is formed in one surface of the first rotating plate, which is opposite to the second rotating plate, and a second sliding groove is symmetrically formed in the left side and the right side of the third U-shaped groove along the width direction of the first rotating plate; the upper portions of the left side and the right side of the second moving plate are symmetrically provided with a second protruding portion along the width direction of the second protruding portion, and the second protruding portion is matched with the second sliding groove, so that the protruding portions are opposite to the second sliding groove and move forwards and backwards.
Furthermore, the second moving plate comprises a moving body and two bearing blocks, the two second protruding parts are symmetrically arranged on the left side and the right side of the moving body, and the two bearing blocks are symmetrically positioned on the front side wall of the moving body and are integrally formed with the moving body; a gap is reserved between the two bearing blocks, and bearing grooves with upward openings are formed in the bearing blocks, so that the two ends of the bone cutting plate are respectively positioned in the two bearing grooves which are symmetrically arranged.
Furthermore, a blocking wall is arranged on one of the bearing grooves on the second moving plate.
Furthermore, scales are arranged on the upper end face of the second moving plate along the width direction of the second moving plate
The invention relates to an auxiliary device for ankle osteotomy, which has the advantages that:
1. in the device, the connection design of the rotating plate and the supporting top plate ensures that the osteotomy device can rotate between 0 and 45 degrees on the horizontal plane, thereby improving the operation accuracy;
2. in the device, the connection design between the first moving plate and the rotating plate realizes the adjustment of the osteotomy plate in the left-right direction;
3. in the device, the connection design between the second movable plate and the first movable plate realizes the adjustment of the osteotomy plate in the front and back directions;
4. in the device, the combination design of the positioning hole on the supporting plate and the inserting column on the supporting top plate ensures that the supporting plate and the supporting top plate are convenient to assemble and accurate in positioning in the assembling process, and meanwhile, the stability of the device is enhanced in the using process;
5. the design of the first visible window on the supporting top plate in the device is convenient for observing the rotation condition of the rotating plate.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a perspective view illustrating an auxiliary device for ankle osteotomy according to the present invention;
FIGS. 2 and 3 are schematic perspective views of an ankle osteotomy aid according to the present invention, with an osteotomy plate attached thereto;
FIG. 4 is a perspective view of the support plate;
fig. 5 and 6 are schematic perspective views of the supporting top plate from different viewing angles, respectively;
fig. 7 and 8 are schematic perspective views of the rotating plate from different viewing angles, respectively;
fig. 9 and 10 are schematic perspective views of a first moving plate from different viewing angles;
fig. 11 and 12 are schematic perspective views of the second moving plate at different viewing angles, respectively;
wherein:
the device comprises a support plate 1, a first screw 11, a first window 12, a first threaded hole 13, a sunk hole 14 and a positioning hole 15;
the support top plate 2, a second window 21, a second threaded hole 22, an inserting column 23, a first locking screw 24, a first locking hole 25, a first visual window 26, a second locking hole 27, a first U-shaped groove 28 and an arc-shaped groove 29;
the locking device comprises a rotating plate 3, an arc-shaped bulge 31, a third locking hole 32, a fourth locking hole 33, a second locking screw 34, a third locking screw 35, a second U-shaped groove 36 and a first sliding groove 37;
the first moving plate 4, the third window 41, the first boss 42, the third U-shaped groove 43, the second sliding groove 44, the fifth locking hole 45, the bump 46 and the fourth locking screw 47;
the second moving plate 5, the fourth window 51, the second boss 52, the moving body 53, the bearing block 54, the bearing groove 55, the blocking wall 55a, the third threaded hole 55b and the scale 56;
and a osteotomy plate 6.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
In a specific application, as shown in fig. 1 to 3, the present invention provides an ankle osteotomy assisting device capable of accurately positioning during an osteotomy procedure, which mainly comprises: the movable plate mechanism comprises two vertically arranged supporting plates 1, a transversely arranged supporting top plate 2, a rotating plate 3, a first movable plate 4 and a second movable plate 5, wherein the left side and the right side of the supporting top plate 2 are respectively connected with the two supporting plates 1 through first screws 11, the rotating plate 3 is rotatably connected to the lower part of the supporting top plate 2, the first movable plate 4 is movably connected to the lower part of the rotating plate 3, and the second movable plate 5 is connected with the first movable plate 4, so that the second movable plate 5 moves in the front and rear directions relative to the first movable plate 4; the rotating plate 3 rotates 0-45 degrees relative to the supporting top plate 2 on the horizontal plane, so that the angle of the osteotomy device is adjusted according to actual needs during osteotomy, and subsequent osteotomy operation is performed after accurate positioning is realized; the first moving plate 4 moves left and right relative to the rotating plate 3; the second moving plate 5 is used for fixing the osteotomy plate 6;
in order to reduce the burden on the patient during use of the device of the invention, it is shown in figure 4: a first window 12 is formed in the supporting plate 1, a second window 21 is formed in the supporting top plate 2, a third window 41 is formed in the first moving plate 4 along the length direction of the first moving plate, and a fourth window 51 is formed in the second moving plate 5, so that the weight of the device is reduced; furthermore, the shapes of the first window 12, the second window 21, the third window 41 and the fourth window 51 are the same or different, and the specific shapes of the windows enable the structures to be designed according to requirements on the premise of not influencing the strength and effect of the device.
In a further technical scheme, a first threaded hole 13 through which the first screw 11 passes is formed in the middle of the upper portion of the support plate 1, and a second threaded hole 22 corresponding to the first threaded hole 13 is formed in the support top plate 2, so that the first screw 11 sequentially passes through the first threaded hole 13 and the second threaded hole 22 and then connects and fixes the support plate 1 and the support top plate 2;
in order to avoid the influence of the first screw 11 on a patient, a sunk hole 14 is formed in the support plate 1, and the first threaded hole 13 is located in the sunk hole 14, so that a nut of the first screw 11 is located in the sunk hole 14;
in order to enable the support plate 1 and the support top plate 2 to be assembled in a time-saving and labor-saving manner and accurately, a positioning hole 15 is symmetrically formed in the two sides of the first threaded hole 13 on the support plate 1, so that the insertion posts 23 arranged at the two ends of the support top plate 2 are inserted into the positioning holes 15 and used for positioning and connecting the support plate 1 and the support top plate 2.
In a further technical solution, as shown in fig. 5 and 6: a first locking hole 25 matched with a first locking screw 24, two first visible windows 26 arranged in parallel at intervals, a second locking hole 27 and a first U-shaped groove 28 with a downward opening are vertically formed in the supporting top plate 2, the first locking hole 25 is positioned on one side of the supporting top plate 2, so that the first locking screw 24 penetrates through the supporting top plate 2 and then abuts against the upper end surface of the rotating plate 3, the supporting top plate 2 and the rotating plate 3 are relatively fixed, the accuracy of the device in the assembling or using process is improved, the time and labor are saved, and the accuracy is high;
two visual window 26 is located the central authorities of roof support 2, No. two locking hole 27 is located two before visual window 26, and two the central line of visual window 26 with roof support 2 the central line coincidence of No. two locking hole 27 makes roof support 2 atress is even, and stability is strong.
An arc-shaped groove 29 is symmetrically formed in the left side and the right side of the first U-shaped groove 28, arc-shaped protrusions 31 matched with the arc-shaped groove 29 are respectively arranged on the left side and the right side of the rotating plate 3, and a gap is formed between abutting surfaces of the inner side wall of the arc-shaped groove 29 and the arc-shaped protrusions 31, so that the rotating plate 3 can rotate on the horizontal plane relative to the supporting top plate 2, the position of the bone cutting plate 6 can be adjusted as required, and the purpose of accurate bone cutting is achieved.
In a further technical solution, as shown in fig. 7 and 8: the rotating plate 3 is further provided with a third locking hole 32 corresponding to the second locking hole 27 and a fourth locking hole 33 which is positioned on the front side wall and the rear side wall of the rotating plate 3 and is obliquely arranged, the third locking hole 32 vertically penetrates through the rotating plate 3, and a second locking screw 34 sequentially penetrates through the second locking hole 27 and the third locking hole 32 to lock and fix the supporting top plate 2 and the rotating plate 3; the rotating plate 3 and the second moving plate 5 are connected through a third locking screw 35 penetrating through the fourth locking hole 33;
in order to realize the connection between the rotating plate 3 and the first moving plate 4 and realize the movement of the first moving plate 4 in the left and right directions relative to the rotating plate 3, one surface of the rotating plate 3 facing the first moving plate 4 is provided with a second U-shaped groove 36 with a U-shaped longitudinal section and a downward opening direction, the front side and the rear side of the second U-shaped groove 36 are symmetrically provided with a first sliding groove 37 along the length direction of the rotating plate 3, and the upper parts of the front side wall and the rear side wall at the upper end of the first moving plate 4 are provided with a first protruding part 42 matched with the first sliding groove 37, so that the first protruding part 42 moves left and right relative to the first sliding groove 37 to adjust the bone cutting position of the bone cutting plate 6 and realize accurate bone cutting.
In a further technical solution, as shown in fig. 9 and 10: in order to realize the connection between the first moving plate 4 and the second moving plate 3 and to realize the movement of the second moving plate 5 relative to the first moving plate 4 in the front and rear directions, a third U-shaped groove 43 with a downward opening is formed in one surface of the first moving plate 4 relative to the second moving plate 3, and a second sliding groove 44 is symmetrically formed in the left side and the right side of the third U-shaped groove 43 along the width direction of the first moving plate 4; a second convex part 52 is symmetrically arranged on the upper parts of the left side and the right side of the second moving plate 5 along the width direction of the second moving plate, and the second convex part 52 is matched with the second sliding groove 44, so that the second convex part 52 moves forwards and backwards relative to the second sliding groove 44 to adjust the osteotomy position of the osteotomy plate 6 and realize accurate osteotomy;
in order to enhance the stability between the first moving plate 4 and the second moving plate 5, a bump 46 provided with a fifth locking hole 45 is integrally arranged on one side of the lower end face of the first moving plate 4, the fifth locking hole 45 horizontally penetrates through the bump 46 and corresponds to the side wall of the second moving plate 5, the first moving plate 4 and the second moving plate 5 are further locked and fixed by passing through the fifth locking hole 45 through a fourth locking screw 47, and at the moment, an insertion end of the fourth locking screw 47 abuts against the side wall of the second moving plate 5.
For the sake of aesthetic property, a bump is also arranged on the lower end surface of the first moving plate and on the other side of the bump 46, and the bump is provided with a fifth locking hole 45 according to the requirement.
In a further technical solution, as shown in fig. 11 and 12: the second moving plate 5 further comprises a moving body 53 and two bearing blocks 54, the two second protruding portions 52 are symmetrically arranged on the left side and the right side of the moving body 53, and the two bearing blocks 54 are symmetrically arranged on the front side wall of the moving body 53 and are integrally formed with the same; a gap is reserved between the two bearing blocks 54, and bearing grooves 55 with upward openings are formed in the bearing blocks 54, so that two ends of the osteotomy plate 6 are respectively positioned in the two bearing grooves 55 which are symmetrically arranged;
furthermore, the upper end surface of the second moving plate 5 along the width direction thereof is provided with scales 56 for observing the distance of the second moving plate 5 adjusted in front and back relative to the first moving plate 4 in real time; an arrow on the bearing block 54 indicates the moving direction of the second moving plate 5 to remind an operator of the operating direction; the fourth locking screw 47 is located below the second boss 52.
Furthermore, in order to make the osteotomy plate 6 coaxial with the second moving plate 5, a blocking wall 55a is arranged on one bearing groove 55 on the second moving plate 5, so that the osteotomy plate 6 is inserted from the other bearing groove 55 to one end of the bearing groove 55 provided with the blocking wall 55a and abuts against the blocking wall 55 a;
furthermore, in order to improve the stability of the osteotomy plate 6 on the device of the present invention, a third threaded hole 55b is vertically formed on each of the two bearing grooves 55, so that after the osteotomy plate 6 is adjusted on the device of the present invention, the osteotomy plate 6 is further fixed on the device of the present invention by inserting screws through the bottoms of the bearing grooves 55, thereby avoiding the displacement of the osteotomy plate 6 during the osteotomy process.
The invention is realized by the following steps:
1. connecting the supporting top plate 2 and the rotating plate 3: the arc-shaped protrusions 31 on the left side and the right side of the rotating plate 3 are respectively slid into the arc-shaped grooves 29 on the lower portion of the supporting top plate 2, the first locking screw 24 penetrates through the first locking hole 25 to be abutted against the upper end face of the rotating plate 3, and the second locking screw 34 penetrates through the second locking hole 27 and the third locking hole 32 in sequence to be used for locking and fixing the supporting top plate 2 and the rotating plate 3;
2. connecting the rotating plate 3 with the first moving plate 4: sliding the first protruding parts 42 on the front and rear sides of the first moving plate 4 into the two first sliding grooves corresponding to the rotating plate 3;
3. connecting the first moving plate 4 with the second moving plate 5: the second protruding parts 52 on the left side and the right side of the second moving plate 5 slide into the second sliding grooves on the left side and the right side of the first moving plate 4, and the third locking screw 35 penetrates through the fourth locking hole 33 to connect the rotating plate 3 and the second moving plate 5;
4. mounting of the support plate 1: inserting the inserting columns 23 at the left and right sides of the supporting top plate 2 into the positioning holes 15 of the supporting plate 1 to realize the primary positioning of the supporting top plate 2 and the supporting plate 1; then, the first screw 11 sequentially penetrates through the first threaded hole 13 and the second threaded hole 22 to further connect and fix the support plate 1 and the support top plate 2, and meanwhile, the support plate 1 is accurately connected with the support top plate 2;
5. the osteotomy plate 6 is horizontally placed on the second moving plate 5, and the left side and the right side of the osteotomy plate 6 are respectively positioned in the two bearing grooves 55.
In the invention, the structures or the distances which are not described in detail are the prior art, and are not described again; in addition, the osteotomy plate is used for assisting the osteotomy saw blade to perform osteotomy during osteotomy in the operation process, and is not limited to the structural figures illustrated in the drawings.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. An ankle joint is auxiliary device for osteotomy which characterized in that: the movable plate mechanism comprises two vertically arranged supporting plates (1), a transversely arranged supporting top plate (2), a rotating plate (3), a first movable plate (4) and a second movable plate (5), wherein the left side and the right side of the supporting top plate (2) are respectively connected with the two supporting plates (1) through first screws (11), the rotating plate (3) is rotatably connected to the lower part of the supporting top plate (2), the first movable plate (4) is movably connected to the lower part of the rotating plate (3), and the second movable plate (5) is connected with the first movable plate (4) so that the second movable plate (5) can move in the front and rear directions relative to the first movable plate (4);
wherein the rotating plate (3) rotates in the range of 0 to 45 degrees on the horizontal plane relative to the supporting top plate (2); the first moving plate (4) moves in the left and right directions relative to the rotating plate (3); the second moving plate (5) is used for fixing the osteotomy plate (6).
2. The ankle osteotomy assisting device according to claim 1, wherein: a first threaded hole (13) for the first screw (11) to pass through is formed in the middle of the upper portion of the supporting plate (1), and a second threaded hole (22) corresponding to the first threaded hole (13) is formed in the supporting top plate (2), so that the first screw (11) sequentially passes through the first threaded hole (13) and the second threaded hole (22) and then the supporting plate (1) and the supporting top plate (2) are fixedly connected.
3. The ankle osteotomy assisting device according to claim 2, wherein: a positioning hole (15) is symmetrically formed in the two sides of the first threaded hole (13) on the supporting plate (1), so that the inserting columns arranged at the two ends of the supporting top plate (2) are inserted into the positioning hole (15) and used for positioning and connecting the supporting plate (1) and the supporting top plate (2).
4. The ankle osteotomy assisting device according to claim 3, wherein: a first locking hole (25) matched with the first locking screw (24), two first visual windows (26) arranged in parallel at intervals, a second locking hole (27) and a first U-shaped groove (28) with a downward opening are vertically formed in the supporting top plate (2), and the first locking hole (25) is located on one side of the supporting top plate (2) so that the first locking screw (24) penetrates through the supporting top plate (2) and abuts against the upper end face of the rotating plate (3); the two first visual windows (26) are positioned in the center of the supporting top plate (2), the second locking hole (27) is positioned between the two first visual windows (26), and the center lines of the two first visual windows (26) are superposed with the center lines of the supporting top plate (2) and the second locking hole (27);
an arc-shaped groove (29) is symmetrically formed in the left side and the right side of the first U-shaped groove (28), arc-shaped protrusions (31) matched with the arc-shaped groove (29) are respectively arranged on the left side and the right side of the rotating plate (3), and gaps are formed between the inner side wall of the arc-shaped groove (29) and the abutting surface of the arc-shaped protrusions (31), so that the rotating plate (3) rotates on the horizontal plane relative to the supporting top plate (2).
5. The ankle osteotomy assisting device according to claim 4, wherein: the rotating plate (3) is further provided with a third locking hole (32) corresponding to the second locking hole (27), and two fourth locking holes (33) obliquely arranged on the front side wall and the rear side wall of the rotating plate (3), the third locking hole (32) vertically penetrates through the rotating plate (3), and sequentially penetrates through the second locking hole (27) and the third locking hole (32) through a second locking screw (34) to be used for locking and fixing the supporting top plate (2) and the rotating plate (3);
the rotating plate (3) and the second moving plate (5) are connected through a third locking screw (35) penetrating through the fourth locking hole (33).
6. The ankle osteotomy assisting device according to claim 4, wherein: the rotating plate (3) is provided with a U-shaped groove (36) with a U-shaped longitudinal section and a downward opening direction on one surface facing the first moving plate (4), a sliding groove (37) is symmetrically formed in the front side and the rear side of the U-shaped groove (36) along the length direction of the rotating plate (3), and a protruding portion (42) matched with the sliding groove (37) is arranged on the upper portion of the front side wall and the upper portion of the rear side wall of the upper end of the first moving plate (4), so that the protruding portion (42) moves left and right relative to the sliding groove (37).
7. The ankle osteotomy assisting device according to claim 6, wherein: one surface, opposite to the second rotating plate (3), of the first rotating plate (3) is provided with a third U-shaped groove (43) with a downward opening, and the left side and the right side of the third U-shaped groove (43) are symmetrically provided with a second sliding groove (44) along the width direction of the first rotating plate (3); a second protruding part (52) is symmetrically arranged on the upper parts of the left side and the right side of the second moving plate (5) along the width direction of the second moving plate, and the second protruding part (52) is matched with the second sliding groove (44), so that the second protruding part moves forwards and backwards relative to the second sliding groove (44).
8. The ankle osteotomy assisting device according to claim 7, wherein: the second moving plate (5) comprises a moving body (53) and two bearing blocks (54), the two second protruding parts (52) are symmetrically arranged on the left side and the right side of the moving body (53), and the two bearing blocks (54) are symmetrically arranged on the front side wall of the moving body (53) and are integrally formed with the front side wall of the moving body (53); a gap is reserved between the two bearing blocks (54), and bearing grooves (55) with upward openings are formed in the bearing blocks (54), so that two ends of the osteotomy plate (6) are respectively positioned in the two bearing grooves (55) which are symmetrically arranged.
9. The ankle osteotomy assisting device according to claim 8, wherein: one of the bearing grooves (55) on the second moving plate (5) is provided with a blocking wall (55 a).
10. The ankle osteotomy assisting device according to claim 8, wherein: the upper end face of the second moving plate (5) along the width direction is provided with scales (56).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110515201.5A CN113197616B (en) | 2021-05-12 | 2021-05-12 | Auxiliary device for ankle joint osteotomy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110515201.5A CN113197616B (en) | 2021-05-12 | 2021-05-12 | Auxiliary device for ankle joint osteotomy |
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| Publication Number | Publication Date |
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| CN113197616A true CN113197616A (en) | 2021-08-03 |
| CN113197616B CN113197616B (en) | 2022-07-19 |
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| CN202110515201.5A Active CN113197616B (en) | 2021-05-12 | 2021-05-12 | Auxiliary device for ankle joint osteotomy |
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| WO2006099270A2 (en) * | 2005-03-14 | 2006-09-21 | Topez Orthopedics, Inc. | Ankle replacement system |
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| CN113197616B (en) | 2022-07-19 |
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