A bone transporter for tibia

Abstract

The present invention belongs to the technical field of tibial transport equipment, and specifically relates to a bone transporter for tibia. A bone transporter for tibia comprises a support frame, an upper fitting frame is provided at one end of the support frame, a lower fitting frame is provided at the other end of the support frame, and a synchronous adjustment device for adjusting the upper fitting frame and the lower fitting frame is provided on the support frame; the output ends of the upper fitting frame and the lower fitting frame are both connected to a mounting frame, and a fixed bone needle is detachably connected to the mounting frame; a liftable transport frame is provided on the support frame, and a transport bone needle slidably connected to the support frame is installed on the transport frame; the lower fitting frame comprises a lower active rod and a lower driven rod rotatably connected to the support frame, and the other end of the lower active rod is rotatably connected to a parallel rod rotatably connected to the lower driven rod; the lower driven rod is coaxially fixed with a large gear, and a small gear is meshed on the large gear; the present invention effectively solves the problem that the torque of the connection point between the fixed bone needle and the tibia is large when the existing bone transporter is in use.

Description

Technical Field

[0001] The invention belongs to the technical field of tibia transport equipment, and in particular relates to a bone transport device for tibia. Background Art

[0002] The occurrence of diabetic foot is mainly due to the slowing of blood circulation in patients, the decline of lower limb protection function caused by neuropathy, the invasion of blood vessels by high blood sugar, the ischemia of limbs, the ulcers and necrosis, and the secondary bacterial infection. The traditional treatment method is mainly "unblocking blood vessels", but the new method, namely the lateral bone transport technology, stimulates tissue regeneration and active growth through the slow traction of biological tissues, realizes the reconstruction of microcirculation and the regeneration of vascular network, provides a second blood supply system for ischemic limbs, and solves the problem of ischemia in diabetic foot.

[0003] The principle of transverse bone transport technology is to apply the "tension-stress law". Through continuous, slow and stable horizontal stretching of the tibial bone tissue, a certain tension is generated to stimulate the regeneration and active growth of local bones, blood vessels, skin and other tissues. In this process, through micro-injury and repair mechanisms, the regeneration of the longitudinal vascular network of the tibia is promoted to achieve microcirculation reconstruction of diabetic foot. At the same time, the advantages of simple and easy operation and low trauma make it suitable for the treatment of lower limb ischemic vascular diseases (such as thromboangiitis obliterans, arteriosclerosis obliterans, etc.) and diabetic foot.

[0004] When using the lateral bone transport technology to treat diabetic foot, a bone transporter is required to transport the osteotomy on the tibia; the existing bone transporter includes a fixed bone pin, a support frame, a transport frame, a support rod, a transport bone pin, etc., and a plurality of fixed bone pins and a support frame are connected by a support rod to enable the support frame to support the transport bone pins and the transport frame, so that the transport frame can transport the osteotomy on the tibia through the transport bone pins.

[0005] However, during specific use, due to the irregular structure of the operator's calf, which is thicker at the top and thinner near the ankle, the support rod is connected to the fixed bone needle near the leg when it is connected to the upper fixed bone needle; due to the vertical arrangement of the support rod, the support frame and the connection point between the support rod and the fixed bone needle near the ankle are far away from the leg, causing the overall center of gravity of the support frame, support rod, etc. to be far away from the connection point between the fixed bone needle and the tibia, resulting in a larger torque on the fixed bone needle. Under the action of the same force, the farther from the connection point, the greater the pressure on the fixed bone needle, that is, the greater the force on the connection between the fixed bone needle and the tibia, which affects the operator's tibia; in addition, if the support rod is slightly deformed, it is easy to cause traction on the muscles, making it more difficult for medical staff to care for the wound, affecting the patient's recovery. Summary of the invention

[0006] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a bone carrier for tibia, which effectively solves the problem of large torque on the connection point between the bone pin and the tibia when the prior bone carrier is in use.

[0007] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a bone transporter for tibia, including a support frame, an upper fitting frame is provided at one end of the support frame, a lower fitting frame is provided at the other end of the support frame, and a synchronous adjustment device for adjusting the upper fitting frame and the lower fitting frame is provided on the support frame; the output ends of the upper fitting frame and the lower fitting frame are both connected to a mounting frame, and the mounting frame is detachably connected to a fixed bone needle; the support frame is provided with a liftable transport frame, and the transport frame is equipped with a transport bone needle slidably connected to the support frame.

[0008] Furthermore, the lower bonding frame includes a lower active rod and a lower driven rod rotatably connected to the support frame, the other end of the lower active rod is rotatably connected to a parallel rod rotatably connected to the lower driven rod, and the lower active rod, the lower driven rod, the parallel rod and the support frame together constitute a parallelogram mechanism; the lower driven rod is coaxially fixed with a large gear, and a small gear is meshed on the large gear; the small gear is coaxially fixed with an input rod, and the large gear is coaxially rotatably connected to a rotating rod corresponding to the input rod, the input rod is rotatably connected to a lower output rod rotatably connected to the rotating rod, the lower output rod is vertically fixed to the mounting frame, and the input rod, the rotating rod and the lower output rod together constitute a parallelogram structure.

[0009] Furthermore, the upper bonding frame includes an upper active rod and an upper driven rod rotatably connected to the support frame, the other end of the upper active rod is rotatably connected to an upper output rod rotatably connected to the upper driven rod, the upper output rod is vertically fixed to the mounting frame, and the upper active rod, the upper driven rod, the upper output rod, and the support frame together form a parallelogram structure.

[0010] Further, the mounting frame includes a first-level adjusting cylinder, which is vertically fixed to the corresponding upper output rod and lower output rod; a first-level adjusting rod is slidably connected to the first-level adjusting cylinder, and a fastening screw for fixing the first-level adjusting rod is provided on the first-level adjusting cylinder; a first-level mounting cylinder is fixed to the first-level adjusting rod, and a second-level adjusting rod is fixed to the first-level mounting cylinder; a second-level adjusting cylinder is slidably connected to the second-level adjusting rod, and a fastening screw for fixing the second-level adjusting rod is provided on the second-level adjusting cylinder; a second-level mounting cylinder is fixed to the second-level adjusting cylinder, and both the second-level mounting cylinder and the first-level mounting cylinder are threadedly connected with fastening screws for fixing the bone pins.

[0011] Furthermore, the synchronous adjustment device includes a synchronous frame rotatably connected to the support frame, and the center position of the synchronous frame is rotatably connected to the support frame; a pair of sliders are slidably connected to the synchronous frame, and the pair of sliders are respectively rotatably connected to an upper connecting rod and a lower connecting rod; an upper driving rod is fixedly connected to the upper active rod, and the upper connecting rod is rotatably connected to the upper driving rod; a lower driving rod is fixedly connected to the lower active rod, and the lower connecting rod is rotatably connected to the lower driving rod.

[0012] Furthermore, the support frame is rotatably connected with an input bevel gear, the input bevel gear is coaxially fixed with a knob, and an output bevel gear is meshed with the input bevel gear; the output bevel gear is coaxially fixed with a worm, a worm wheel is meshed with the worm, and the worm wheel is coaxially fixed with the synchronous frame.

[0013] Furthermore, an adjusting shaft is rotatably connected to the support frame, and a knob is fixed to the adjusting shaft; an active bevel gear is fixed to the adjusting shaft, and a pair of driven bevel gears are meshed on the active bevel gear; the pair of driven bevel gears are both connected to a one-way component, and the output ends of the one-way components are both connected to a reciprocating screw, and the pair of sliders are respectively threadedly connected to the pair of reciprocating screws.

[0014] Furthermore, the one-way component includes a ratchet coaxially fixed to the driven bevel gear, and the tooth directions of the ratchets on a pair of the driven bevel gears are consistent; a turntable is fixed to the reciprocating screw, a pawl that cooperates with the ratchet is rotatably connected to the turntable, and a reset spring that cooperates with the pawl is provided on the turntable.

[0015] Furthermore, the transport frame includes a first transport frame, to which a second transport frame is detachably connected, and the second transport frame is provided with a pair of locking bolts threadedly connected to the first transport frame; the first transport frame and the second transport frame are both provided with a plurality of semicircular holes for fixing the transport bone needles, and the semicircular holes on the first transport frame and the second transport frame can be combined into circular holes for fixing the transport bone needles; the support frame is provided with a plurality of guide holes corresponding to the semicircular holes.

[0016] Furthermore, the second transport frame is rotatably connected with an adjusting knob, and the support frame is fixedly connected with a transport screw threadedly connected to the adjusting knob; the transport screw is provided with an indicating plane, and the indicating plane is provided with scale lines corresponding to the adjusting knob.

[0017] Furthermore, the fixing bone needle and the transporting bone needle both include a fixing part, one end of the fixing part is fixedly connected to the rotating part, and the other end of the fixing part is fixedly connected to the screw part.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] When the present invention is in use, the upper fitting frame and the lower fitting frame on the support frame are adjusted so that the upper fitting frame, the support frame and the lower fitting frame correspond to the arc of the operator's leg. When the upper fitting frame, the support frame and the lower fitting frame are installed on the fixed bone needle through the mounting frame, the distance between the mounting frame and the patient's leg is closer, and the center of gravity of the upper fitting frame, the support frame and the lower fitting frame as a whole is closer to the connection point between the fixed bone needle and the tibia, so the pressure on the fixed bone needle is smaller, that is, the force acting on the connection between the fixed bone needle and the tibia is smaller, and the impact on the operator's tibia is smaller, thereby improving the effect of the present application on the treatment of patients. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a first axonometric view of the present invention;

[0021] Figure 2 is a second axonometric view of the present invention;

[0022] Figure 3 It is a schematic diagram of the coordination state of the supporting frame, the transporting frame, the transporting bone needle and other structures in the present invention;

[0023] Figure 4 It is a schematic diagram of the coordination state of the upper laminating frame, the supporting frame, the synchronous adjustment device, the lower laminating frame and other structures in the present invention;

[0024] Figure 5 It is a schematic diagram of the coordination state of the structures such as the mounting frame, the upper laminating frame, and the upper fixing bone pin in the present invention;

[0025] Figure 6 It is a schematic diagram of the coordination state of the structures such as the mounting frame, the lower laminating frame, and the lower fixing bone pin in the present invention;

[0026] Figure 7 It is a structural schematic diagram of the lower laminating frame in the present invention;

[0027] Figure 8 It is a first isometric view of the synchronous adjustment device in the present invention;

[0028] Fig. 9 It is a second isometric view of the synchronous adjustment device in the present invention;

[0029] Fig.10 It is a schematic diagram of the matching state of the driven bevel gear, ratchet, rotating disk, pawl and other structures in the present invention;

[0030] In the figure: 1, fix the bone needle, 2, install the frame, 3, lower fit frame, 4, support frame, 5, synchronous adjustment device, 6, first transport frame, 7, upper fit frame, 8, transport bone needle, 9, semicircular hole, 10, second transport frame, 11, adjustment knob, 12, transport screw, 13, scale line, 14, guide hole, 15, synchronous frame, 16, upper connecting rod, 17, upper driving rod, 18, upper active rod, 19, upper driven rod, 20, upper output rod, 21, primary adjustment cylinder, 22, lower connecting rod, 23, lower driving rod, 24, lower active Rod, 25, lower driven rod, 26, large gear, 27, parallel rod, 28, small gear, 29, input rod, 30, lower output rod, 31, primary adjusting rod, 32, primary mounting cylinder, 33, secondary adjusting rod, 34, secondary adjusting cylinder, 35, secondary mounting cylinder, 36, rotating rod, 37, input bevel gear, 38, worm, 39, worm wheel, 40, adjusting shaft, 41, active bevel gear, 42, driven bevel gear, 43, reciprocating screw, 44, slider, 45, ratchet, 46, turntable, 47, pawl, 48, return spring. DETAILED DESCRIPTION

[0031] A bone carrier for a tibia, such as Figure 1-10 As shown, it includes a support frame 4, an upper laminating frame 7 is provided at one end of the support frame 4, a lower laminating frame 3 is provided at the other end of the support frame 4, and a synchronous adjustment device 5 for adjusting the upper laminating frame 7 and the lower laminating frame 3 is provided on the support frame 4; the output ends of the upper laminating frame 7 and the lower laminating frame 3 are both connected to a mounting frame 2, and a fixed bone needle 1 is detachably connected to the mounting frame 2; the support frame 4 is provided with a liftable transport frame, and a transport bone needle 8 slidably connected to the support frame 4 is installed on the transport frame.

[0032] When the present invention is in use, the operator's leg is opened, the fixing bone needle 1 is installed on the tibia, and the carrying bone needle 8 is installed on the osteotomy of the tibia; the carrying frame is lifted and lowered along the supporting frame 4, so that the carrying frame can carry the osteotomy on the tibia through the carrying bone needle 8; the upper fitting frame 7 and the lower fitting frame 3 on the supporting frame 4 are adjusted to make the upper fitting frame 7, the supporting frame 4, and the lower fitting frame 3 correspond to the arc of the operator's leg. When the upper fitting frame 7, the supporting frame 4, and the lower fitting frame 3 are installed on the fixing bone needle 1 through the mounting frame 2, the distance between the mounting frame 2 and the patient's leg is relatively close, and the center of gravity of the upper fitting frame 7, the supporting frame 4, and the lower fitting frame 3 as a whole is relatively close to the connection point between the fixing bone needle 1 and the tibia, so the pressure on the fixing bone needle 1 is relatively small, that is, the force acting on the connection between the fixing bone needle 1 and the tibia is relatively small, and the influence on the operator's tibia is relatively small, thereby improving the effect of the present application on the treatment of the patient.

[0033] Furthermore, if Figure 6 and Figure 7As shown, the lower bonding frame 3 includes a lower active rod 24 and a lower driven rod 25 rotatably connected to the support frame 4, the other end of the lower active rod 24 is rotatably connected to a parallel rod 27 rotatably connected to the lower driven rod 25, the lower active rod 24, the lower driven rod 25, the parallel rod 27, and the support frame 4 together form a parallelogram mechanism; the lower driven rod 25 is coaxially fixed with a large gear 26, and a small gear 28 is meshed on the large gear 26; the small gear 28 is coaxially fixed with an input rod 29, the large gear 26 is coaxially rotatably connected to a rotating rod 36 corresponding to the input rod 29, the input rod 29 is rotatably connected to a lower output rod 30 rotatably connected to the rotating rod 36, the lower output rod 30 is vertically fixed to the mounting frame 2, the input rod 29, the rotating rod 36, and the lower output rod 30 together form a parallelogram structure.

[0034] When the lower laminating frame 3 is in use, the lower active rod 24 is rotated, and the lower active rod 24 drives the lower driven rod 25 to rotate through the parallel rod 27. Since the lower active rod 24, the lower driven rod 25, the parallel rod 27, and the supporting frame 4 together form a parallelogram mechanism, the parallel rod 27 moves horizontally; when the lower driven rod 25 rotates, it drives the large gear 26 to rotate, the large gear 26 drives the small gear 28 to rotate, the small gear 28 drives the input rod 29 to rotate, and the input rod 29 drives the rotating rod 36 to rotate through the lower output rod 30. The rod 29, the rotating rod 36, and the lower output rod 30 together form a parallelogram structure, so that the lower output rod 30 moves horizontally in parallel with the parallel rod 27; in addition, through the setting of the large gear 26 and the small gear 28, the rotation angle of the input rod 29 is greater than the rotation angle of the lower driven rod 25, so that the lower active rod 24 and the lower driven rod 25 rotate at a smaller angle, so that the input rod 29 can drive the lower output rod 30 to move a larger distance, that is, the mounting frame 2 moves a larger distance, so that the mounting frame 2 moves to a position close to the operator's legs.

[0035] Furthermore, if Figure 5 As shown, the upper bonding frame 7 includes an upper active rod 18 and an upper driven rod 19 which are rotatably connected to the support frame 4. The other end of the upper active rod 18 is rotatably connected to an upper output rod 20 which is rotatably connected to the upper driven rod 19. The upper output rod 20 is vertically fixed to the mounting frame 2. The upper active rod 18, the upper driven rod 19, the upper output rod 20, and the support frame 4 together form a parallelogram structure.

[0036] When the upper laminating frame 7 is in use, the upper active rod 18, the upper driven rod 19, the upper output rod 20, and the support frame 4 together form a parallelogram structure, so that when the upper active rod 18 rotates, the upper active rod 18 drives the upper driven rod 19 to rotate through the upper output rod 20, and the upper active rod 18 and the upper driven rod 19 cooperate to make the upper output rod 20 move horizontally.

[0037] Furthermore, if Figure 5 and Figure 6As shown, the mounting frame 2 includes a primary adjusting cylinder 21, which is vertically fixed to the corresponding upper output rod 20 and lower output rod 30; a primary adjusting rod 31 is slidably connected to the primary adjusting cylinder 21, and a fastening screw for fixing the primary adjusting rod 31 is provided on the primary adjusting cylinder 21; a primary mounting cylinder 32 is fixedly connected to the primary adjusting rod 31, and a secondary adjusting rod 33 is fixedly connected to the primary mounting cylinder 32; a secondary adjusting cylinder 34 is slidably connected to the secondary adjusting rod 33, and a fastening screw for fixing the secondary adjusting rod 33 is provided on the secondary adjusting cylinder 34; a secondary mounting cylinder 35 is fixedly connected to the secondary adjusting cylinder 34, and both the secondary mounting cylinder 35 and the primary mounting cylinder 32 are threadedly connected with fastening screws for fixing the bone needle 1.

[0038] When the mounting frame 2 is in use, the upper output rod 20 and the lower output rod 30 move, driving the first-level adjustment tube 21 to move; the position of the first-level mounting tube 32 is adjusted by cooperating with the first-level adjustment tube 21 and the first-level adjustment rod 31, and the first-level adjustment tube 21 and the first-level adjustment rod 31 are fixed by the fastening screws; the position of the second-level mounting tube 35 is adjusted by cooperating with the second-level adjustment rod 33 and the second-level adjustment tube 34, and the second-level adjustment tube 34 and the second-level adjustment rod 33 are fixed by the fastening screws; the positions of the first-level mounting tube 32 and the second-level mounting tube 35 are made to correspond to the positions of the fixed bone needle 1, and the mounting frame 2 is installed on the fixed bone needle 1 by the fastening screws on the first-level mounting tube 32 and the second-level mounting tube 35.

[0039] Furthermore, if Figure 8-10 As shown, the synchronous adjustment device 5 includes a synchronous frame 15 rotatably connected to the support frame 4, and the center position of the synchronous frame 15 is rotatably connected to the support frame 4; a pair of sliders 44 are slidably connected to the synchronous frame 15, and the pair of sliders 44 are rotatably connected to the upper connecting rod 16 and the lower connecting rod 22 respectively; the upper active rod 18 is fixedly connected to the upper driving rod 17, and the upper connecting rod 16 is rotatably connected to the upper driving rod 17; the lower active rod 24 is fixedly connected to the lower driving rod 23, and the lower connecting rod 22 is rotatably connected to the lower driving rod 23.

[0040] When the synchronous adjustment device 5 is in use, the synchronous frame 15 rotates along the support frame 4, and the synchronous frame 15 drives the upper connecting rod 16 and the lower connecting rod 22 to rotate through a pair of sliders 44; the synchronous frame 15, the slider 44, the upper connecting rod 16, and the upper driving rod 17 form a crank rocker mechanism with an adjustable crank length for driving the upper active rod 18 to swing, so that when the synchronous frame 15 drives the upper connecting rod 16 to rotate through the slider 44, the upper connecting rod 16 drives the upper active rod 18 to rotate through the upper driving rod 17; the synchronous frame 15, the slider 44, the lower connecting rod 22, and the lower driving rod 23 form a crank rocker mechanism with an adjustable crank length for driving the lower active rod 24 to swing, so that when the synchronous frame 15 drives the lower connecting rod 22 to rotate through the slider 44, the lower connecting rod 22 drives the lower active rod 24 to rotate through the lower driving rod 23; by sliding a pair of sliders 44 along the synchronous frame 15, the actual length of the crank is changed, and the rotation angle of the lower driving rod 23 and the upper driving rod 17 is finely adjusted, thereby improving the convenience of the present application.

[0041] Furthermore, an input bevel gear 37 is rotatably connected to the support frame 4 , a knob is coaxially fixed to the input bevel gear 37 , and an output bevel gear is meshed with the input bevel gear 37 ; a worm 38 is coaxially fixed to the output bevel gear 38 , a worm wheel 39 is meshed with the worm 38 , and the worm wheel 39 is coaxially fixed to the synchronous frame 15 .

[0042] When the synchronous frame 15 needs to be rotated, the input bevel gear 37 is driven to rotate through the knob, and the input bevel gear 37 drives the output bevel gear to rotate; the output bevel gear drives the worm 38 to rotate, and the worm 38 drives the synchronous frame 15 to rotate through the worm wheel 39; through the setting of the worm 38 and the worm wheel 39, not only the rotation of the synchronous frame 15 is self-locked, but also through the deceleration effect of the worm 38 and the worm wheel 39, it is easier for medical staff to rotate the synchronous frame 15, and the rotation of the synchronous frame 15 is more accurate.

[0043] Furthermore, the support frame 4 is rotatably connected to an adjusting shaft 40, and a knob is fixedly connected to the adjusting shaft 40; an active bevel gear 41 is fixedly connected to the adjusting shaft 40, and a pair of driven bevel gears 42 are meshed on the active bevel gear 41; the pair of driven bevel gears 42 are both connected to a one-way component, and the output ends of the one-way components are both connected to a reciprocating screw 43, and a pair of sliders 44 are respectively threadedly connected to the pair of reciprocating screws 43.

[0044] When the slider 44 is adjusted, the adjusting shaft 40 is driven to rotate through the knob, the adjusting shaft 40 drives the active bevel gear 41 to rotate, the active bevel gear 41 drives a pair of driven bevel gears 42 to rotate, and the driven bevel gear 42 drives the one-way component to move; through the setting of a pair of one-way components, when the adjusting shaft 40 rotates forward, it can drive one of the one-way components to output; when the adjusting shaft 40 rotates reversely, it can drive the other one-way component to output; the one-way component drives the reciprocating screw 43 to rotate, and the reciprocating screw 43 drives the slider 44 to slide back and forth along the synchronous frame 15; through the setting of a pair of one-way components, the adjusting shaft 40 can adjust the pair of sliders 44 separately by forward and reverse rotation, thereby improving the convenience of the present application.

[0045] Furthermore, the one-way component includes a ratchet 45 coaxially fixed to the driven bevel gear 42, and the tooth directions of the ratchet 45 on a pair of the driven bevel gears 42 are consistent; a turntable 46 is fixed to the reciprocating screw 43, and a pawl 47 cooperating with the ratchet 45 is rotatably connected to the turntable 46, and a reset spring 48 cooperating with the pawl 47 is provided on the turntable 46.

[0046] When a one-way component is used, Fig.10 As shown, when the driven bevel gear 42 rotates counterclockwise, the driven bevel gear 42 drives the ratchet 45 to rotate, and the ratchet 45 cooperates with the pawl 47 to drive the turntable 46 to rotate, and the turntable 46 drives the reciprocating screw 43 to rotate; when the driven bevel gear 42 rotates clockwise, the pawl 47 slides along the back of the ratchet 45, and the reciprocating screw 43 remains stationary; through the consistent tooth directions of the ratchet 45 on a pair of driven bevel gears 42, when the active bevel gear 41 drives the driven bevel gear 42 to rotate, due to the opposite rotation directions of the pair of driven bevel gears 42, one of the ratchet wheels 45 can drive the pawl 47 and the turntable 46 to move, and the other pawl 47 slides along the back of the other ratchet wheel 45.

[0047] Furthermore, if Figure 3 As shown, the transport frame includes a first transport frame 6, to which a second transport frame 10 is detachably connected, and the second transport frame 10 is provided with a pair of locking bolts threadedly connected to the first transport frame 6; the first transport frame 6 and the second transport frame 10 are both provided with a plurality of semicircular holes 9 for fixing the transport bone needles 8, and the semicircular holes 9 on the first transport frame 6 and the second transport frame 10 can be combined into circular holes for fixing the transport bone needles 8; the support frame 4 is provided with a plurality of guide holes 14 corresponding to the semicircular holes 9.

[0048] The transport bone needle 8 is fixed by cooperating with the semicircular hole 9 on the first transport frame 6 and the semicircular hole 9 on the second transport frame 10, so that when the first transport frame 6 and the second transport frame 10 move, the transport bone needle 8 can be driven to slide along the guide hole 14 on the support frame 4; in addition, through the provision of multiple semicircular holes 9, the present application can be selected according to the operator's clinical osteotomy size, thereby improving the convenience of the present application.

[0049] Furthermore, an adjusting knob 11 is rotatably connected to the second transport frame 10, and a transport screw 12 threadedly connected to the adjusting knob 11 is fixedly connected to the support frame 4; by rotating the adjusting knob 11, under the action of the transport screw 12, the adjusting knob 11 drives the second transport frame 10 to move up and down; the transport screw 12 is provided with an indicating plane, and the indicating plane is provided with scale lines 13 corresponding to the adjusting knob 11; by cooperating with the scale lines 13 and the adjusting knob 11, the adjustment distance of the adjusting knob 11 is observed, thereby improving the convenience of the present application.

[0050] Furthermore, the fixing bone needle 1 and the transporting bone needle 8 both include a fixing part, one end of which is fixedly connected to a rotating part, and the other end of which is fixedly connected to a screw part; the fixing part is connected to the tibia through the screw part, and the fixing part cooperates with the first-level mounting tube 32, the second-level mounting tube 35, and the semicircular hole 9 to achieve fixation of the fixing bone needle 1 and the transporting bone needle 8.

[0051] The working process of the present invention is:

[0052] When the present invention is in use, the upper fitting frame 7 and the lower fitting frame 3 on the support frame 4 are adjusted so that the upper fitting frame 7, the support frame 4 and the lower fitting frame 3 correspond to the arc of the operator's leg, so that when the upper fitting frame 7, the support frame 4 and the lower fitting frame 3 are installed on the fixed bone needle 1 through the mounting frame 2, the distance between the mounting frame 2 and the patient's leg is closer, and the center of gravity of the upper fitting frame 7, the support frame 4 and the lower fitting frame 3 as a whole is closer to the connection point between the fixed bone needle 1 and the tibia, so the pressure on the fixed bone needle 1 is smaller, that is, the force acting on the connection between the fixed bone needle 1 and the tibia is smaller, and the impact on the operator's tibia is smaller, thereby improving the effect of the present application on the treatment of the patient.

[0053] The adjustment process is as follows: the input bevel gear 37 is driven to rotate by the knob, and the input bevel gear 37 drives the output bevel gear to rotate; the output bevel gear drives the worm 38 to rotate, and the worm 38 drives the synchronous frame 15 to rotate through the worm gear 39; the synchronous frame 15 drives the upper connecting rod 16 and the lower connecting rod 22 to rotate through a pair of sliders 44; the synchronous frame 15, the slider 44, the upper connecting rod 16, and the upper driving rod 17 form a crank-rocker mechanism with an adjustable crank length that drives the upper active rod 18 to swing, so that when the synchronous frame 15 drives the upper connecting rod 16 to rotate through the slider 44, the upper connecting rod 16 drives the upper active rod 18 to rotate through the upper driving rod 17; the synchronous frame 15, the slider 44, the lower connecting rod 22, and the lower driving rod 23 form a crank-rocker mechanism with an adjustable crank length that drives the lower active rod 24 to swing, so that when the synchronous frame 15 drives the lower connecting rod 22 to rotate through the slider 44, the lower connecting rod 22 drives the lower active rod 24 to rotate through the lower driving rod 23.

[0054] When the upper active rod 18 rotates, the upper active rod 18 drives the upper driven rod 19 to rotate through the upper output rod 20. The upper active rod 18 and the upper driven rod 19 cooperate to make the upper output rod 20 move horizontally, and the upper output rod 20 drives the mounting frame 2 to move.

[0055] When the lower active rod 24 rotates, the lower active rod 24 drives the lower driven rod 25 to rotate through the parallel rod 27. Since the lower active rod 24, the lower driven rod 25, the parallel rod 27, and the support frame 4 together form a parallelogram mechanism, the parallel rod 27 moves horizontally; when the lower driven rod 25 rotates, it drives the large gear 26 to rotate, the large gear 26 drives the small gear 28 to rotate, the small gear 28 drives the input rod 29 to rotate, and the input rod 29 drives the rotating rod 36 to rotate through the lower output rod 30. The moving rod 36 and the lower output rod 30 together form a parallelogram structure, so that the lower output rod 30 moves horizontally in parallel with the parallel rod 27; in addition, through the setting of the large gear 26 and the small gear 28, the rotation angle of the input rod 29 is greater than the rotation angle of the lower driven rod 25, so that the lower active rod 24 and the lower driven rod 25 rotate at a smaller angle, so that the input rod 29 can drive the lower output rod 30 to move a larger distance, that is, the mounting frame 2 moves a larger distance, so that the mounting frame 2 moves to a position close to the operator's legs.

[0056] In addition, according to the position of the mounting bracket 2 on the upper output rod 20 and the position of the mounting bracket 2 on the lower output rod 30, the upper active rod 18 and the lower active rod 24 are fine-tuned separately; specifically, the adjusting shaft 40 is driven to rotate by the knob, the adjusting shaft 40 drives the active bevel gear 41 to rotate, and the active bevel gear 41 drives a pair of driven bevel gears 42 to rotate, such as Fig.10As shown, when the driven bevel gear 42 rotates counterclockwise, the driven bevel gear 42 drives the ratchet 45 to rotate, and the ratchet 45 cooperates with the pawl 47 to drive the turntable 46 to rotate, and the turntable 46 drives the reciprocating screw 43 to rotate; when the driven bevel gear 42 rotates clockwise, the pawl 47 slides along the back of the ratchet 45, and the reciprocating screw 43 is stationary; the reciprocating screw 43 is driven to rotate by the turntable 46, and the reciprocating screw 43 drives the slider 44 to slide back and forth along the synchronous frame 15; by making a pair of sliders 44 slide along the synchronous frame 15, the actual length of the crank is changed, and the rotation angle of the lower drive rod 23 and the upper drive rod 17 is fine-tuned, thereby improving the convenience of the present application.

[0057] The installation process is as follows: open the operator's leg, install the fixed bone needle 1 on the tibia, and install the transport bone needle 8 on the osteotomy of the tibia; adjust the position of the first-level installation tube 32 by cooperating with the first-level adjustment tube 21 and the first-level adjustment rod 31, and fix the first-level adjustment tube 21 and the first-level adjustment rod 31 by fastening screws; adjust the position of the second-level installation tube 35 by cooperating with the second-level adjustment rod 33 and the second-level adjustment tube 34, and fix the second-level adjustment tube 34 and the second-level adjustment rod 33 by fastening screws; make the position of the first-level installation tube 32 and the second-level installation tube 35 correspond to the position of the fixed bone needle 1, and install the mounting frame 2 on the fixed bone needle 1 by fastening screws on the first-level installation tube 32 and the second-level installation tube 35.

[0058] The transport bone needle 8 is fixed by cooperating with the semicircular hole 9 on the first transport frame 6 and the semicircular hole 9 on the second transport frame 10; when transporting the tibia, by turning the adjusting knob 11, under the action of the transport screw 12, the adjusting knob 11 drives the second transport frame 10 to move up and down, and the second transport frame 10 drives the transport bone needle 8 to slide along the guide hole 14 on the support frame 4, and the transport bone needle 8 transports the osteotomy on the tibia.

Claims

1. A bone carrier for tibia, characterized in that: The invention comprises a support frame (4), wherein an upper laminating frame (7) is provided at one end of the support frame (4), and a lower laminating frame (3) is provided at the other end of the support frame (4); a synchronous adjustment device (5) for adjusting the upper laminating frame (7) and the lower laminating frame (3) is provided on the support frame (4); the output ends of the upper laminating frame (7) and the lower laminating frame (3) are both connected to a mounting frame (2), and a fixed bone needle (1) is detachably connected to the mounting frame (2); a liftable transport frame is provided on the support frame, and a transport bone needle (8) slidably connected to the support frame (4) is installed on the transport frame; The lower laminating frame (3) comprises a lower active rod (24) and a lower driven rod (25) which are rotatably connected to the support frame (4); the other end of the lower active rod (24) is rotatably connected to a parallel rod (27) which is rotatably connected to the lower driven rod (25); the lower active rod (24), the lower driven rod (25), the parallel rod (27) and the support frame (4) together form a parallelogram mechanism; the lower driven rod (25) is coaxially fixedly connected to a large gear (26); a small gear (28) is meshed on the large gear (26); the small gear (28) is coaxially fixedly connected to an input rod (29); the large gear (26) is coaxially rotatably connected to a rotating rod (36) corresponding to the input rod (29); the input rod (29) is rotatably connected to a lower output rod (30) which is rotatably connected to the rotating rod (36); the lower output rod (30) is vertically fixedly connected to the mounting frame (2); the input rod (29), the rotating rod (36) and the lower output rod (30) together form a parallelogram structure; The upper laminating frame (7) comprises an upper active rod (18) and an upper driven rod (19) which are rotatably connected to the support frame (4); the other end of the upper active rod (18) is rotatably connected to an upper output rod (20) which is rotatably connected to the upper driven rod (19); the upper output rod (20) is vertically fixed to the mounting frame (2); the upper active rod (18), the upper driven rod (19), the upper output rod (20) and the support frame (4) together form a parallelogram structure; The synchronous adjustment device (5) comprises a synchronous frame (15) rotatably connected to the support frame (4), wherein the center position of the synchronous frame (15) is rotatably connected to the support frame (4); a pair of sliders (44) are slidably connected to the synchronous frame (15), and an upper connecting rod (16) and a lower connecting rod (22) are rotatably connected to the pair of sliders (44); an upper driving rod (17) is fixedly connected to the upper active rod (18), and the upper connecting rod (16) is rotatably connected to the upper driving rod (17); a lower driving rod (23) is fixedly connected to the lower active rod (24), and the lower connecting rod (22) is rotatably connected to the lower driving rod (23).

2. The bone carrier for tibia according to claim 1, characterized in that: The mounting frame (2) comprises a primary adjustment cylinder (21), the primary adjustment cylinder (21) being vertically fixedly connected to the corresponding upper output rod (20) and lower output rod (30); a primary adjustment rod (31) is slidably connected to the primary adjustment cylinder (21), and a fastening screw for fixing the primary adjustment rod (31) is provided on the primary adjustment cylinder (21); a primary mounting cylinder (32) is fixedly connected to the primary adjustment rod (31), and a secondary adjustment rod (33) is fixedly connected to the primary mounting cylinder (32); a secondary adjustment cylinder (34) is slidably connected to the secondary adjustment rod (33), and a fastening screw for fixing the secondary adjustment rod (33) is provided on the secondary adjustment cylinder (34); a secondary mounting cylinder (35) is fixedly connected to the secondary adjustment cylinder (34), and fastening screws for fixing the bone pin (1) are both threadedly connected to the secondary mounting cylinder (35) and the primary mounting cylinder (32).

3. The bone carrier for tibia according to claim 1, characterized in that: An input bevel gear (37) is rotatably connected to the support frame (4), a knob is coaxially fixed to the input bevel gear (37), and an output bevel gear is meshed with the input bevel gear (37); a worm (38) is coaxially fixed to the output bevel gear, a worm wheel (39) is meshed with the worm wheel (38), and the worm wheel (39) is coaxially fixed to the synchronous frame (15).

4. The bone carrier for tibia according to any one of claims 1 or 3, characterized in that: The support frame (4) is rotatably connected to an adjusting shaft (40), and a knob is fixedly connected to the adjusting shaft (40); an active bevel gear (41) is fixedly connected to the adjusting shaft (40), and a pair of driven bevel gears (42) are meshed on the active bevel gear (41); the pair of driven bevel gears (42) are both connected to a one-way component, and the output ends of the one-way components are both connected to a reciprocating screw rod (43); the pair of sliders (44) are respectively threadedly connected to the pair of reciprocating screw rods (43).

5. The bone carrier for tibia according to claim 4, characterized in that: The one-way assembly comprises a ratchet wheel (45) coaxially fixed to a driven bevel gear (42), and the teeth of the ratchet wheels (45) on the pair of driven bevel gears (42) are consistent; a rotating disk (46) is fixed to the reciprocating screw rod (43), a ratchet pawl (47) cooperating with the ratchet wheel (45) is rotatably connected to the rotating disk (46), and a return spring (48) cooperating with the ratchet pawl (47) is provided on the rotating disk (46).

6. The bone carrier for tibia according to claim 1, characterized in that: The transport frame comprises a first transport frame (6), the first transport frame (6) being detachably connected to a second transport frame (10), the second transport frame (10) being provided with a pair of locking bolts threadedly connected to the first transport frame (6); the first transport frame (6) and the second transport frame (10) are both provided with a plurality of semicircular holes (9) for fixing the transport bone needles (8), the semicircular holes (9) on the first transport frame (6) and the second transport frame (10) being able to be combined into circular holes for fixing the transport bone needles (8); and the support frame (4) is provided with a plurality of guide holes (14) corresponding to the semicircular holes (9).

7. The bone carrier for tibia according to claim 6, characterized in that: The second transport frame (10) is rotatably connected to an adjusting knob (11), and the support frame (4) is fixedly connected to a transport screw (12) threadedly connected to the adjusting knob (11); an indicating plane is provided on the transport screw (12), and a scale line (13) corresponding to the adjusting knob (11) is provided on the indicating plane.

8. The bone carrier for tibia according to claim 1, characterized in that: The fixing bone needle (1) and the transporting bone needle (8) both comprise a fixing portion, one end of the fixing portion is fixedly connected to the rotating portion, and the other end of the fixing portion is fixedly connected to the screw portion.

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