阅读说明：本技术 一种胫骨近端的辅助截骨装置 (Auxiliary osteotomy device for proximal tibia ) 是由 李秀娟 于 2021-10-19 设计创作，主要内容包括：本发明公开了一种胫骨近端的辅助截骨装置,属于辅助截骨装置领域。一种胫骨近端的辅助截骨装置,包括脚踝定位机构,所述脚踝定位机构的一侧固定安装有第一立杆,所述第一立杆的表面活动套接有第二立杆,所述第二立杆内壁的顶端转动连接有第一旋转件；本发明通过设置第二伸缩杆、旋转筒、第一定位针和第二定位针等结构组件,相对于现有技术,本装置无须时刻通过x光进行角度矫正,省时省力,通过第一刻度线与第三刻度线,当固定后可以直接读取出胫骨的长度,从而帮助医师判断切口的位置,减少了手术过程中拿取不同器械所需要的时间,且本装置中的截骨导向模块无须克氏针即可定位,本装置操作简单,非常方便。(The invention discloses an auxiliary osteotomy device for the proximal end of a tibia, and belongs to the field of auxiliary osteotomy devices. An auxiliary osteotomy device for the proximal tibia comprises an ankle positioning mechanism, wherein a first vertical rod is fixedly mounted on one side of the ankle positioning mechanism, a second vertical rod is movably sleeved on the surface of the first vertical rod, and a first rotating piece is rotatably connected to the top end of the inner wall of the second vertical rod; according to the invention, by arranging the structural components such as the second telescopic rod, the rotary cylinder, the first positioning needle and the second positioning needle, compared with the prior art, the angle correction of the device is not required to be carried out by x-ray all the time, time and labor are saved, the length of the tibia can be directly read after fixation through the first scale mark and the third scale mark, so that a doctor is helped to judge the position of the incision, the time required for taking different instruments in the operation process is reduced, and the osteotomy guide module in the device can be positioned without a Kirschner wire.)

1. The auxiliary osteotomy device for the proximal tibia is characterized by comprising an ankle positioning mechanism (1), wherein a first vertical rod (2) is fixedly mounted on one side of the ankle positioning mechanism (1), a second vertical rod (3) is sleeved on the surface of the first vertical rod (2), a first rotating piece (4) is rotatably connected to the top end of the inner wall of the second vertical rod (3), a first telescopic rod (5) is sleeved on the internal thread of the first rotating piece (4), an L-shaped plate (6) is fixedly connected to the top end of the first telescopic rod (5), a sliding sleeve (601) is sleeved on the surface of the L-shaped plate (6), an adjusting component is fixedly connected to one side of the sliding sleeve (601) and comprises a fixing rod (602), the fixing rod (602) is fixedly mounted on one side of the sliding sleeve (601), and a second rotating piece (603) is connected to the internal rotation of the fixing rod (602), the inner thread of the second rotating piece (603) is connected with a second telescopic rod (604), the inner part of the second telescopic rod (604) is rotatably connected with a rotating cylinder (605), the surface of the rotating cylinder (605) is fixedly connected with a first positioning needle (606), the surface of the second telescopic rod (604) is fixedly connected with a second positioning needle (607), the surface of the second telescopic rod (604) is provided with an arc-shaped groove (608), and the surface of the rotating cylinder (605) is provided with second scale marks (609).

2. The proximal tibia auxiliary osteotomy device according to claim 1, wherein the ankle positioning mechanism (1) comprises a lower cover plate (101), an upper cover plate (102) is hinged to one side of the lower cover plate (101), two electric push rods (103) are embedded in an inner wall of the upper cover plate (102), and a push plate (104) is fixedly connected to one end of each electric push rod (103).

3. The proximal tibial auxiliary osteotomy device of claim 2, wherein said push plates (104) have open slots (105) formed on their surfaces that are offset from each other; the inner wall of the lower cover plate (101) is provided with a positioning groove (112).

4. The auxiliary osteotomy device for the proximal tibia according to claim 2, wherein a hook (106) is fixedly connected to one side of the upper cover plate (102), a movable hole (107) is formed in one side of the lower cover plate (101), a cavity (108) is formed in the lower cover plate (101), a clamping rod (109) is installed on one side of the lower cover plate (101) in a penetrating manner, one end of the clamping rod (109) penetrates through the cavity (108), and a pressure spring (110) and a bearing plate (111) are sleeved on a section of the surface of the clamping rod (109) located in the cavity (108).

5. The auxiliary osteotomy device for the proximal tibia according to claim 1, wherein a first retaining pin (301) is threadedly connected to one side of said second vertical rod (3), and a first rotating knob (302) is fixedly connected to one end of said first retaining pin (301); the surface of the first upright rod (2) is provided with a plurality of clamping holes (201) which are matched with the first clamping pins (301) in size at equal intervals.

6. The auxiliary osteotomy device for the proximal tibia is according to claim 1, wherein a sliding groove (303) is vertically formed in an inner wall of the second vertical rod (3), a sliding rod (501) is slidably connected inside the sliding groove (303), and one end of the sliding rod (501) is fixedly connected with one side of the first telescopic rod (5).

7. The proximal tibial osteotomy aid of claim 1, characterized in that said second telescopic rod (604) and said fixed rod (602) are connected in the same way as said first telescopic rod (5) and said second upright (3).

8. The auxiliary osteotomy device for the proximal tibia is characterized in that the number of the adjusting components is two, the other adjusting component is fixedly installed on one side of the L-shaped plate (6), and one end of the second telescopic rod (604) is slidably connected with a movable rod (610), the bottom end of the movable rod (610) is rotatably connected with an osteotomy guiding module (611) through a rotating pin, one side of the rotating pin is in threaded connection with a clamping button (612), an osteotomy guiding groove (6111) is formed in the surface of the osteotomy guiding module (611) in a penetrating manner, one end of the second telescopic rod (604) is in threaded connection with a second clamping pin (3011), and one end of the second clamping pin (3011) is fixedly connected with a second rotating button (3021).

9. The auxiliary osteotomy device for the proximal tibia is characterized in that a gear cavity (6112) is arranged inside the osteotomy guide module (611), a threaded rod (6113) is rotatably connected between two sides of the inner wall of the gear cavity (6112), a clamping roller (6114) is fixedly sleeved on the surface of the threaded rod (6113), a first nut (6115) is in threaded connection with one side of the threaded rod (6113), an inserting plate (6116) is slidably connected with one side of the osteotomy guide module (611), a mounting box (6117) and clamping teeth are fixedly mounted on the bottom surface of the inserting plate (6116), an electric oscillating saw (6118) is slidably connected inside the mounting box (6117), an L-shaped sliding rod (6119) is fixedly mounted on the top surface of the electric oscillating saw (6118), a roller (61110) is rotatably connected with one side of the L-shaped sliding rod (6119), the top of install bin (6117) is rotated and is connected with flywheel (61111), annular (61112) have been seted up to one side of flywheel (61111), the inside fixed mounting of annular (61112) has first dwang (61113), the surface rotation of first dwang (61113) is connected with first arc pole (61114), the one end rotation of first arc pole (61114) is connected with second arc pole (61115), the one end rotation of second arc pole (61115) is connected with second dwang (61116), the top end threaded connection of second dwang (61116) has second nut (61117), and the bottom slidable mounting of second dwang (61116) is in the inside of annular (61112), the inside fixedly connected with driving source (61118) of install bin (6117), and the output of driving source (61118) is connected with one side of flywheel (61111).

10. The proximal tibial auxiliary osteotomy device according to claim 1, characterized in that said first upright (2) has a surface provided with first graduation marks (202); one side of the L-shaped plate (6) is provided with a third scale line (613).

Technical Field

The invention relates to the technical field of auxiliary osteotomy devices, in particular to an auxiliary osteotomy device for a proximal tibia.

Background

Proximal tibial osteotomy is a surgical treatment for osteoarthritis.

In the knee joint replacement operation, the proximal tibia needs to be cut to find a proper knee joint tibial prosthesis mounting plane, and a plurality of auxiliary medical instruments are needed in the whole operation process.

But at present in whole operation process, have following several shortcoming 1, cut out the incision with the electric pendulum saw after, need use the osteotome to prize the inclination of incision adjustment shin bone, whole process relies on doctor's experience completely, rely on x light to incessantly correct again, waste time and energy, 2, the zero decentralization of multiple auxiliary instrument, operation time has been prolonged during the use, the operation risk has been increased, 3, traditional osteotomy guide module relies on many ke shi needles to fix, destroy the normal structure of patient's shin bone marrow cavity easily, it is big to the patient wound, the amount of bleeding is big, in addition the operation is complicated, it is very inconvenient.

Disclosure of Invention

The invention aims to solve the problems that the prior art completely depends on the experience judgment of a doctor when the inclination angle of the tibia is adjusted, the whole operation time is long, and a plurality of kirschner wires need to be driven to easily damage the normal structure of the tibia, and provides an auxiliary osteotomy device for the proximal end of the tibia.

In order to achieve the purpose, the invention adopts the following technical scheme:

an auxiliary osteotomy device for the proximal tibia comprises an ankle positioning mechanism, wherein a first vertical rod is fixedly mounted on one side of the ankle positioning mechanism, a second vertical rod is sleeved on the surface of the first vertical rod in a movable mode, a first rotating piece is rotatably connected to the top end of the inner wall of the second vertical rod, a first telescopic rod is sleeved on an internal thread of the first rotating piece in a sleeved mode, an L-shaped plate is fixedly connected to the top end of the first telescopic rod, a sliding sleeve is sleeved on the surface of the L-shaped plate in a movable mode, an adjusting component is fixedly connected to one side of the sliding sleeve and comprises a fixed rod, the fixed rod is fixedly mounted on one side of the sliding sleeve, a second rotating piece is rotatably connected to the inside of the fixed rod, a second telescopic rod is connected to the internal thread of the second rotating piece in a screwed mode, a rotating barrel is rotatably connected to the inside of the second telescopic rod, a first positioning needle is fixedly connected to the surface of the rotating barrel, the surface of the second telescopic rod is fixedly connected with a second positioning needle, an arc-shaped groove is formed in the surface of the second telescopic rod, and second scale marks are arranged on the surface of the rotary cylinder.

In order to realize fixed ankle, preferably, ankle positioning mechanism includes lower apron, one side of apron articulates down has the upper cover plate, embedded two electric putter of installing of inner wall of upper cover plate, electric putter's one end fixedly connected with push pedal.

In order to adapt to leg shapes with different thicknesses, preferably, the surfaces of the two push plates are provided with open grooves which are staggered; the inner wall of the lower cover plate is provided with a positioning groove.

In order to realize fixation, preferably, one side fixedly connected with hook piece of upper cover plate, open one side of lower cover plate has the movable hole, the cavity has been seted up to the inside of lower cover plate, and one side of lower cover plate is run through and is installed the chucking pole, the one end of chucking pole runs through the cavity, the chucking pole is located the pressure spring is cup jointed and is accepted the board on one section surface in the cavity.

In order to realize coarse adjustment, preferably, a first clamping pin is in threaded connection with one side of the second vertical rod, and a first rotating button is fixedly connected to one end of the first clamping pin; the surface of the first upright stanchion is provided with a plurality of clamping holes with the size matched with that of the first clamping pin at equal intervals.

In order to realize fine adjustment, preferably, a sliding groove is vertically formed in the inner wall of the second vertical rod, a sliding rod is slidably connected to the inside of the sliding groove, and one end of the sliding rod is fixedly connected with one side of the first telescopic rod.

In order to adjust the length of the second telescopic rod, it is preferable that the second telescopic rod and the fixed rod are connected in the same manner as the first telescopic rod and the second vertical rod.

In order to realize adjusting the position of cutting bone guide module, preferably, adjusting part's quantity is two sets of, another group adjusting part fixed mounting be in one side of "L" shape plate, and wherein the one end sliding connection of second telescopic link has the movable rod, the bottom of movable rod rotates through the rotating pin to be connected with through the rotating pin and cuts bone guide module, the button is held to one side threaded connection of rotating pin, cut bone guide module's surface and run through and seted up and cut the bone guide way, the one end threaded connection of second telescopic link has the second to hold the round pin, the one end fixedly connected with second knob of round pin is held to the second card.

In order to realize the accurate control of the cutting depth of the electric pendulum saw, a gear cavity is arranged inside the osteotomy guiding module, a threaded rod is connected between two sides of the inner wall of the gear cavity in a rotating manner, a clamping roller is sleeved on the surface of the threaded rod, a first nut is connected to one side of the threaded rod in a threaded manner, a plugboard is connected to one side of the osteotomy guiding module in a sliding manner, an installation box and a latch are fixedly arranged on the bottom surface of the plugboard, the inside of the installation box is connected with the electric pendulum saw in a sliding manner, an L-shaped sliding rod is fixedly arranged on the top surface of the electric pendulum saw, a roller is connected to one side of the L-shaped sliding rod in a rotating manner, a flywheel is connected to the top of the installation box in a rotating manner, an annular groove is formed in one side of the flywheel, a first rotating rod is fixedly arranged inside the annular groove, a first arc rod is connected to the surface of the first rotating rod in a rotating manner, a second arc rod is connected to one end of the first arc rod in a rotating manner, the one end of second arc pole is rotated and is connected with the second dwang, the top threaded connection of second dwang has the second nut, and the bottom slidable mounting of second dwang is in the inside of annular, the inside fixedly connected with driving source of install bin, and the output of driving source is connected with one side of flywheel.

In order to realize direct reading of the length of the tibia, preferably, the surface of the first vertical rod is provided with a first scale mark; and a third scale mark is arranged on one side of the L-shaped plate.

Compared with the prior art, the invention provides an auxiliary osteotomy device for the proximal tibia, which has the following beneficial effects:

1. this supplementary bone device of cutting of shin bone near-end, through setting up the second telescopic link, a rotatory section of thick bamboo, structural component such as first pilot pin and second pilot pin, first pilot pin in this device is fixed on the top of shin bone during the use, the middle part department at the shin bone is fixed to the second pilot pin, when two sections shin bones of incision department take place relative position's rotation, the second scale mark also begins to rotate, thereby drive a rotation, and then realize the angle that real-time observation osteotome was adjusted, for prior art, this device need not carry out the angle correction through x light constantly, time saving and labor saving.

2. This supplementary bone device of cutting of shin bone near-end, apron and upper cover plate can fix patient's shank under setting up, and can adapt to the leg type of various thicknesses, through first scale mark and third scale mark, can directly read out the length of shin bone after fixed, thereby help doctor judge notched position, compared with prior art, this device can replace multiple bone appurtenance that cuts, thereby realize centralization, the required time of different apparatus of taking among the operation process has been reduced, thereby operation time has been shortened greatly.

3. This supplementary bone device of cutting of shin bone near-end, through setting up the movable rod, cut bone guide module, round pin and the rotatory button of second card are held to the second, thereby can fix a position notched position fast, and at ankle positioning mechanism, under the interact of first locator pin and second locator pin, cut bone guide module in this device need not fix a position by kirschner wire, rely on many kirschner wires to fix for traditional bone guide module that cuts, destroy patient's shin bone marrow cavity's normal structure easily, it is big to patient's wound, the amount of bleeding is big, this device easy operation, it is very convenient.

Compared with the prior art, the device can know the angle adjusted by the osteotome without performing angle correction by x-ray all the time, is time-saving and labor-saving, can replace various osteotomy auxiliary tools, realizes centralization, reduces the time required for taking different instruments in the operation process, greatly shortens the operation time, and ensures that the osteotomy guide module in the device is fixed by a plurality of kirschner wires, thereby causing less damage to patients and reducing the operation risk.

Drawings

Fig. 1 is a schematic perspective view of an auxiliary osteotomy device for proximal tibia according to the present invention;

FIG. 2 is a schematic bottom view of a proximal tibial osteotomy aid according to the present invention;

FIG. 3 is a schematic structural view showing a positional relationship between a second telescopic rod and a rotary cylinder of the proximal tibia auxiliary osteotomy device according to the present invention;

fig. 4 is a schematic view of the internal structure of a second vertical rod of the proximal tibia auxiliary osteotomy device provided by the present invention;

FIG. 5 is a schematic view of the internal structure of the lower cover plate of the auxiliary osteotomy device for the proximal tibia according to the present invention;

FIG. 6 is a schematic structural view of a connection relationship between an osteotomy guiding module and a mounting box of the proximal tibia auxiliary osteotomy device according to the present invention;

FIG. 7 is a schematic perspective view of a flywheel of an auxiliary osteotomy device for proximal tibia according to the present invention;

fig. 8 is a schematic view of the internal structure of an osteotomy guiding module of the proximal tibial auxiliary osteotomy device according to the present invention.

In the figure: 1. an ankle positioning mechanism; 101. a lower cover plate; 102. an upper cover plate; 103. an electric push rod; 104. pushing the plate; 105. an open slot; 106. a hook member; 107. a movable hole; 108. a cavity; 109. a clamping rod; 110. a pressure spring; 111. a bearing plate; 112. positioning a groove; 2. a first upright rod; 201. a chucking hole; 202. a first scale mark; 3. a second upright stanchion; 301. a first retaining pin; 3011. a second retaining pin; 302. a first rotary knob; 3021. a second rotary knob; 303. a sliding groove; 4. a first rotating member; 5. a first telescopic rod; 501. a slide bar; 6. an "L" shaped plate; 601. a sliding sleeve; 602. fixing the rod; 603. a second rotating member; 604. a second telescopic rod; 605. a rotary drum; 606. a first positioning pin; 607. a second positioning pin; 608. an arc-shaped slot; 609. a second scale mark; 610. a movable rod; 611. an osteotomy guide module; 6111. a osteotomy guide slot; 6112. a gear cavity; 6113. a threaded rod; 6114. a chucking roller; 6115. a first nut; 6116. inserting plates; 6117. installing a box; 6118. electric oscillating saw; 6119. an "L" shaped slide bar; 61110. a roller; 61111. a flywheel; 61112. a ring groove; 61113. a first rotating lever; 61114. a first arc rod; 61115. a second arc rod; 61116. a second rotating lever; 61117. a second nut; 61118. a drive source; 612. a clamping button; 613. and a third scale line.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example (b):

referring to fig. 1-7, an auxiliary osteotomy device for proximal tibia comprises an ankle positioning mechanism 1, a first vertical rod 2 is fixedly installed on one side of the ankle positioning mechanism 1, a second vertical rod 3 is movably sleeved on the surface of the first vertical rod 2, a first rotating member 4 is rotatably connected to the top end of the inner wall of the second vertical rod 3, a first telescopic rod 5 is sleeved on the inner thread of the first rotating member 4, an "L" -shaped plate member 6 is fixedly connected to the top end of the first telescopic rod 5, the length of the "L" -shaped plate member 6 in fig. 1 is only a schematic diagram, the use of an electric pendulum saw 6118 is not affected, a sliding sleeve 601 is movably sleeved on the surface of the "L" -shaped plate member 6, an adjusting component is fixedly connected to one side of the sliding sleeve 601, the adjusting component comprises a fixed rod 602, the fixed rod 602 is fixedly installed on one side of the sliding sleeve 601, a second rotating member 603 is rotatably connected to the inside of the fixed rod 602, a second telescopic rod 604 is connected to the inner thread of the second rotating member 603, the inside of the second telescopic link 604 rotates and is connected with a rotary cylinder 605, the fixed surface of the rotary cylinder 605 is connected with a first positioning needle 606, the fixed surface of the second telescopic link 604 is connected with a second positioning needle 607, the surface of the second telescopic link 604 is provided with an arc-shaped groove 608, and the surface of the rotary cylinder 605 is provided with second scale marks 609.

Specifically, ankle positioning mechanism 1 includes apron 101 down, one side of apron 101 articulates there is upper cover plate 102 down, two electric putter 103 are installed to the inner wall of upper cover plate 102 embedded, electric putter 103's one end fixedly connected with push pedal 104, fix a position the ankle, apron 101 and upper cover plate 102 can be fixed patient's shank through setting up down, and can adapt to the leg type of various thicknesses, through first scale mark 202 and third scale mark 613, can directly read out the length of shin bone after fixed, thereby help doctor judges notched position, for prior art, this device can replace multiple osteotomy appurtenance, thereby realize centralization, the required time of different apparatus of taking in the operation process has been reduced, thereby operation time has been shortened greatly.

Specifically, the surfaces of the two push plates 104 are provided with staggered open grooves 105; the inner wall of the lower cover plate 101 is provided with a positioning groove 112, and when the two push plates 104 are closed towards the middle, the two push plates can be folded together, so that the leg thickness can be adapted to different leg thicknesses.

Specifically, one side fixedly connected with hook piece 106 of upper cover plate 102, one side of lower cover plate 101 is opened there is the activity hole 107, cavity 108 has been seted up to the inside of lower cover plate 101, and one side of lower cover plate 101 is run through and is installed clamping rod 109, the one end of clamping rod 109 runs through cavity 108, clamping rod 109 is located one section surface cup joint pressure spring 110 and accept board 111 in the cavity 108 inside, upper cover plate 102 is closed, under the effect of pressure spring 110, hook piece 106 is chucked, thereby realize fixed effect

Specifically, one side of the second vertical rod 3 is in threaded connection with a first holding pin 301, and one end of the first holding pin 301 is fixedly connected with a first rotating button 302, so as to perform coarse adjustment; the surface of the first vertical rod 2 is provided with a plurality of clamping holes 201 with the size matched with that of the first clamping pin 301 at equal intervals, and when the first clamping pin 301 clamps the clamping holes 201, the relative positions of the first vertical rod 2 and the second vertical rod 3 are fixed.

Specifically, the inner wall of second pole setting 3 is vertical to have seted up sliding tray 303, and the inside sliding connection of sliding tray 303 has slide bar 501, one side fixed connection of one end of slide bar 501 and first telescopic link 5, and the surface of first telescopic link 5 also is equipped with the scale mark to be convenient for directly calculate shin bone length, rotate first rotating member 4 and make first telescopic link 5 can go up and down, thereby realize the fine setting.

Specifically, the connection manner of the second telescopic rod 604 and the fixing rod 602 is the same as the connection manner of the first telescopic rod 5 and the second vertical rod 3, and the second rotating member 603 is rotated to control the extension and retraction of the second telescopic rod 604.

Specifically, the number of the adjusting components is two, the other group of adjusting components is fixedly installed on one side of the L-shaped plate element 6, one end of the second telescopic rod 604 is connected with a movable rod 610 in a sliding manner, the bottom end of the movable rod 610 is connected with a bone cutting guide module 611 in a rotating manner through a rotating pin, so that the position of the incision can be quickly positioned, under the interaction of the ankle positioning mechanism 1, the first positioning pin 606 and the second positioning pin 607, the bone cutting guide module 611 in the device can be positioned without a kirschner wire, and is fixed by a plurality of kirschner wires compared with the traditional bone cutting guide module 611, so that the normal structure of the tibial medullary cavity of a patient is easily damaged, the wound on the patient is large, the bleeding amount is large, the device is simple and convenient to operate, one side of the rotating pin is connected with a clamping button 612 through a thread, a bone cutting guide groove 6111 is formed in the clamping surface of the bone cutting guide module 611, one end of the second telescopic rod 604 is connected with a second pin 3011 through a thread, one end of the second catching pin 3011 is fixedly connected to a second rotating knob 3021, and the tightness of the movable rod 610 is controlled by rotating the second rotating knob 3021 to change the horizontal position of the osteotomy guide module 611, and the angle of the osteotomy guide module 611 is controlled by screwing the catching knob 612 to change the incision angle.

Specifically, a gear cavity 6112 is arranged inside the osteotomy guiding module 611, a threaded rod 6113 is rotatably connected between two sides of the inner wall of the gear cavity 6112, a clamping roller 6114 is fixedly sleeved on the surface of the threaded rod 6113, a first nut 6115 is in threaded connection with one side of the threaded rod 6113, an inserting plate 6116 is in sliding connection with one side of the osteotomy guiding module 611, an installation box 6117 and a clamping tooth are fixedly installed on the bottom surface of the inserting plate 6116, an electric pendulum saw 6118 is in sliding connection with the inside of the installation box 6117, an "L" -shaped sliding rod 6119 is fixedly installed on the top surface of the electric pendulum saw 6118, a roller 61110 is rotatably connected with one side of the "L" -shaped sliding rod 6119, a flywheel 61111 is rotatably connected with the top of the installation box 6117, an annular groove 61112 is formed on one side of the flywheel 61111, a first rotating rod 61113 is fixedly installed inside the annular groove 61112, a first rotating rod 61113 is rotatably connected with a first arc rod 61114 on the surface, one end of the first arc rod 61114 is rotatably connected with a second arc rod 61115, one end of the second arc rod 61115 is rotatably connected with a second rotating rod 61116, the top end of the second rotating rod 61116 is in threaded connection with a second nut 61117, the bottom end of the second rotating rod 61116 is slidably mounted inside the annular groove 61112, the length of the first arc rod 61114 is equal to the length of the second arc rod 61115, when the bottom end of the second arc rod 61115 is moved, the distance from the joint of the first arc rod 61114 and the second arc rod 61115 to the flywheel 61111 is linearly changed, the osteotomy guide groove 6111 is provided with a scale line capable of directly observing the moving distance of the second rotating rod 61116, the inside of the mounting box 6117 is fixedly connected with a driving source 61118, the output end of the driving source 61118 is connected with one side of the flywheel 61111, the axis of the osteotomy guide groove 6111 is overlapped with the axis of the sliding cavity of the electric pendulum saw 6118, thereby ensuring that the traveling direction of the electric pendulum saw 6118 is consistent with the direction of the osteotomy guide groove 6111, when the device is used, after the position of the osteotomy guide module 611 is determined, the inserting plate 6116 is inserted into the osteotomy guide module 611, the tooth groove direction on the clamping roller 6114 is opposite to the tooth clamping direction of the bottom surface of the inserting plate 6116, after the device is fixed, the first nut 6115 is fixed, namely the clamping roller 6114 and the inserting plate 6116 are fixed, at the moment, the second nut 61117 is screwed, the position of the second arc rod 61115 is determined according to the osteotomy depth, the driving source 61118 is controlled to rotate for one cycle, the flywheel 61111 rotates for one cycle, and the first arc rod 61114 and the second arc rod 61115 push the L-shaped sliding rod 6119 to travel for a certain distance and reset under the action of the spring.

Specifically, the surface of the first vertical rod 2 is provided with a first scale mark 202; a third graduation line 613 is arranged on one side of the L-shaped plate element 6, which is convenient for directly reading the length of the tibia of the patient.

In the invention, when the device is used, the plane of the lower cover plate 101 in the device is placed on a horizontal operating table, the clamping rod 109 is pulled to enable the clamping rod 109 to be far away from the hook member 106, the upper cover plate 102 is pulled upwards to enable the upper cover plate 102 to be completely unfolded, the patient is placed on the positioning groove 112, the ankle of the patient is enabled to be tightly close to the lower cover plate 101, the upper cover plate 102 is closed, the hook member 106 is clamped under the action of the pressure spring 110, the fixing effect is realized, the second vertical rod 3 is pulled until the top end of the first telescopic rod 5 is flush with the upper end of the tibia of the patient, fine adjustment is carried out by screwing the first rotating member 4, the display scale on the first vertical rod 2 and the extending length of the first telescopic rod 5 are the length of the tibia of the patient, so that the position of a cutting opening is rapidly calculated, the osteotomy guide groove 6111 is moved to the position needing to be cut by screwing the second rotating button 3021 and the second rotating member 603 of the control movable rod 610, the cutting guide module 611 is rotated to change the cutting inclination angle, the sliding sleeve 601 is moved to make the surface of the first positioning pin 606 contact with the top end of the tibia, and a small hole is formed on one side of the tibia for placing the second positioning pin 607, it is noted that the distance between the first positioning pin 606 and the second positioning pin 607 is greater than the distance from the cut of the tibia to the upper end of the tibia in most people, that is, in general, the cut is between the first positioning pin 606 and the second positioning pin 607, after the cut position is determined, the mounting box 6117 is mounted on one side of the cutting guide module 611, and is fixed by the first nut 6115, the position of the second rotating rod 61116 is adjusted according to the cutting depth, the control switch of the driving source 61118 is opened, so that the first arc rod 61114 and the second arc rod 61115 rotate, when the 61111 flywheel contacts with the first arc rod 61114 or the second arc rod 61115, the "L" -shaped sliding rod 6119 is pushed to cut the bone along the cutting guide groove 6111, compared with the prior art, the device does not need to hold a driving source 61118, the depth needing to be cut can be accurately controlled, after cutting is finished, the osteotome guiding module 611 is removed, after a cut is cut, the osteotomes are placed into the cut, two osteotomes are nailed by a small hammer, one osteotome is placed between the two osteotomes, the small hammer is nailed for changing the angle of the upper tibia and the lower tibia, compared with the prior art, the first positioning needle 606 of the device is fixed at the top end of the tibia, the second positioning needle 607 is fixed at the middle part of the tibia, when the two tibia at the cut are rotated in the relative position, the second scale line 609 is also rotated, so that the rotating cylinder 605 is driven to rotate, the angle adjusted by the osteotome can be observed in real time, compared with the prior art, the device does not need to correct the angle by x-ray all the time, and is time-saving and labor-saving.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.