CN113367765A

CN113367765A - Auxiliary osteotomy device for proximal tibia

Info

Publication number: CN113367765A
Application number: CN202110595958.XA
Authority: CN
Inventors: 王东林
Original assignee: Beijing Lidakang Technology Co Ltd
Current assignee: Beijing Lidakang Technology Co Ltd
Priority date: 2021-05-29
Filing date: 2021-05-29
Publication date: 2021-09-10
Anticipated expiration: 2041-05-29
Also published as: CN113367765B

Abstract

The utility model belongs to the technical field of medical instrument's technique and specifically relates to a supplementary bone device of cutting of shin bone near-end is related to, it is including installing the fine setting subassembly of embracing ankle ware one end of keeping away from at the upright post, the fine setting subassembly includes the erection column of fixed connection in upright post one end, rotates the adjusting knob that sets up on the erection column and set up on the erection column and be square fine setting pole, erection column and adjusting knob all with the coaxial setting of upright post, and the mounting groove has been seted up on the erection column, the adjusting knob rotates and sets up in the mounting groove, the spacing groove that feeds through the mounting groove is seted up to the tip that the upright post was kept away from upright post, fine setting pole sliding fit is at the spacing inslot, the inside screw rod that is provided with fine setting pole one end fixed connection of erection column, the screw rod passes knob and both screw-thread fit. This application has and improves the shin bone volume of cutting and improve the effect that cuts the bone module and can not adjust hypsokinesis angle problem through adjusting the fine setting subassembly and adjusting the shin bone fixed plate.

Description

Auxiliary osteotomy device for proximal tibia

Technical Field

The application relates to the technical field of medical equipment, in particular to an auxiliary osteotomy device for a proximal tibia.

Background

At present, for patients with early knee joint lesions, the unicondylar joint replacement surgery is a widely applied treatment method with remarkable effect, has the advantages of small wound, quick recovery, bone retention, good joint stability and the like, retains the knee joint motion function of the patients to the maximum extent on the premise of not damaging the original proprioception and soft tissue balance system of the knee joints of the patients, and improves the satisfaction degree of the patients on the rehabilitation quality. The precision required by the unicondylar joint replacement technology is relatively high, and clinical studies prove that the accuracy of the installation position of the prosthesis directly influences the survival rate of the prosthesis. The accuracy of the osteotomy position directly affects the accuracy of the placement of the prosthesis, so that it is crucial in the unicondylar replacement surgery whether the osteotomy position and angle are accurate.

Alignment techniques are the basis for knee joint replacement and refer to the method by which the surgeon performs osteotomy and prosthesis installation in the joint replacement. The existing traditional alignment method is mechanical axis alignment, namely, the bone is cut and the prosthesis is installed according to a lower limb mechanical axis formed by connecting a femoral head center with a knee joint center with an ankle joint center, so that a rotating shaft of the replaced knee joint prosthesis is vertical to the mechanical axis and has no inward inclination, but by adopting the alignment technology, the formed rotating shaft is inconsistent with an individual knee joint movement axis of a patient, so that after the unicondylar joint replacement surgery, the patient cannot completely recover the physiological movement axis, the effect of the joint replacement surgery can be possibly influenced, and the subsequent life quality of the patient is further influenced; the device that cuts bone is carried out to shin bone now is including fixing the ankle ware of embracing on the ankle, the perpendicular setting is in the upright line pole of embracing the ankle ware and is set up and keeping away from the osteotomy module of embracing ankle ware one end at upright line pole, the telescopic link of length can be adjusted to the upright line pole, when using, will embrace the ankle ware and press from both sides tightly on patient's ankle, then adjust the length of upright line pole, will cut the position department that the knee joint needs the cutting of bone module, cut the pathological change position of knee joint along cutting the bone module at last.

In view of the above-mentioned related art, the inventor believes that there is a problem in that, since the position where each patient needs to be cut and the length where each patient needs to be cut are different, and when a plurality of times of cutting are needed, the position of the cutting module needs to be adjusted at any time, the length of the existing upright wire rod cannot be finely adjusted, and the cutting module cannot be accurately and rapidly moved to the position where the cutting is needed.

Disclosure of Invention

In order to improve the problem that the upright line pole can not finely tune, this application provides the supplementary osteotomy device of shin bone proximal end.

The application provides a supplementary bone device of cutting of shin bone near-end adopts following technical scheme:

the utility model provides a supplementary bone device of cutting of shin bone near-end, is including installing the fine setting subassembly of embracing ankle ware one end of keeping away from at the upright post, the fine setting subassembly includes fixed connection at the erection column of upright post one end, rotates the adjusting knob that sets up on the erection column and be square fine setting pole, erection column and adjusting knob all with the coaxial setting of upright post, and the mounting groove has been seted up on the erection column, the adjusting knob rotates and sets up in the mounting groove, the tip that the upright post was kept away from to the erection column is seted up and is communicated the spacing groove of mounting groove, fine setting pole sliding fit is at the spacing inslot, the inside screw rod that is provided with fine setting pole one end fixed connection of erection column, the screw rod passes knob and both screw-thread fit.

Through adopting above-mentioned technical scheme, when cutting the knee joint of pathological change position according to patient's actual conditions, through the fine setting subassembly that sets up, the adjusting knob rotates, under the effect of screw rod and spacing groove, the fine setting pole can be gradually stretch out from the erection column, thereby can be quick adjust the position of cutting the bone device, make the doctor can cut the accurate quick completion in position that the patient pathological change was felt, the physiological pain that furthest's reduction patient received, and through adjusting the height that the fine setting pole stretches out, can carry out cutting many times to patient's pathological change position.

Optionally, the end that stretches out of fine tuning pole is provided with rotating assembly, rotating assembly includes fixed block, rotation setting that fixed block upper end one side and vertical setting were stretched out to the fine tuning pole set up the knob in fixed block lower extreme one side at the end, knob and turning block set up the both sides at the fixed block, and the fixed block is passed to the one end of knob, turning block one side fixedly connected with actuating lever, the kidney slot has been seted up to the one end that the turning block was kept away from to the actuating lever, fixedly connected with eccentric rod on the terminal surface of knob orientation actuating lever, eccentric rod sliding fit is at the kidney inslot.

Through adopting above-mentioned technical scheme, because the shin bone near-end is anomalous cambered surface, and certain angle has, before the operation, the doctor judges the angle that exists between osteotomy module and the shin bone near-end earlier according to the experience, then through rotating assembly, the rotation knob, the eccentric bar can drive the actuating lever, make the rotor block rotate, thereby reach the purpose of the hypsokinesis angle of adjustment osteotomy module, the knee joint position department that the shin bone needs the excision can be better laminated to the osteotomy module after the adjustment, be provided with a plurality of scales on rotating assembly, so that the doctor can be quick adjusts suitable angle, and the osteotomy device can be adjusted according to every patient's actual conditions, make the practicality of osteotomy device better, improve equipment's utilization degree.

Optionally, inside anticreep piece and the locating part of being provided with of fixed block, the knob is located and has been offered on fixed block inside global and be annular anticreep groove, anticreep piece is including setting up the first spring on the fixed block and fixing the anticreep ball in first spring one end, the anticreep ball sets up at the anticreep inslot, the locating part is including setting up the second spring on the fixed block and fixing the spacing ball in second spring one end, the knob is located fixed block inside global first-class angle be provided with a plurality ofly and spacing ball complex recess.

By adopting the technical scheme, after the knob is arranged on the fixing block in a penetrating manner, the arranged anti-falling part can prevent the knob from falling off from the fixing block in the rotating process, and the anti-falling ball can be clamped in the annular anti-falling groove without influencing the rotation of the knob; when knob drive turning block pivoted in-process, because the osteotomy device has certain weight, rotatory completion back, if not spacing to the knob, the knob can take place to rotate under the effect of gravity, the locating part of setting, under the effect of second spring, can support spacing ball tight to the recess all the time, when needs rotate the knob, exert certain external force, spacing ball compression second spring, thereby the knob can be normal rotate, rotate certain angle after, spacing ball can block into the recess once more.

Optionally, the one end that fine-tuning pole was kept away from to the turning block is provided with the dismantlement subassembly, the dismantlement subassembly includes fixed connection at the fixing base of turning block upper end and can dismantle the dismantlement seat of connection on the fixing base, the one end fixedly connected with inserted bar that the turning block was kept away from to the fixing base, the inserted bar passes and dismantles the seat, be provided with joint spare on the fixing base, joint spare is including rotating the joint board that sets up on the fixing base and setting up the pressure spring on the fixing base, the joint board is hook-like towards the one end of dismantling the seat to the hook is on dismantling the seat, the one end of dismantling the seat is kept away from at the joint board to the pressure spring setting, pressure spring one end and joint board butt, other one end and fixing base butt.

By adopting the technical scheme, the dismounting assembly can be used for quickly dismounting the fixed seat and the rotating block, when a doctor adjusts the osteotomy module to the position of pathological change of a patient and fixes the osteotomy module on the skeleton of the patient, and if the vertical line rod and the ankle holding device influence the doctor to perform osteotomy, the vertical line rod, the ankle holding device, the fine adjustment assembly and the rotating assembly can be quickly dismounted from the osteotomy module through the dismounting assembly; on the other hand, the dismantlement subassembly that sets up can make things convenient for the doctor to change the pole of standing a line and the ankle ware of different specifications according to patient's actual conditions.

Optionally, the disassembly seat is provided with an observation groove along the length direction of the disassembly seat, the observation groove is internally used for arranging an anchor, and the disassembly seat is provided with a graduated scale on the surface of the observation groove facing the fixed seat.

Through adopting above-mentioned technical scheme, after cutting the bone module and tentatively installing at the shin bone near-end, can wear to establish the anchor earlier in observing the inslot to with the anchor nail go into the shin bone on, then adjust fine setting subassembly and rotating assembly, through observing the displacement position of scale and anchor in observing the inslot, the quick motion amount of knowing cutting the bone module.

Optionally, one side of dismantling the seat is provided with the slip subassembly, the slip subassembly includes with the perpendicular guide block that sets up of dismantlement seat and sliding block of sliding fit on the guide block, the one end that the guide block was kept away from to the sliding block is fixed with the shin bone fixed plate.

Through adopting above-mentioned technical scheme, the sliding component that this application set up, after the position department of cutting the bone module and adjusting the shin bone near-end, can transversely adjust the bone module of cutting through sliding component, make the removal that the shin bone fixed plate can be quick to the position that needs the excision pathological change to the sliding component who sets up conveniently adjusts the bone module of cutting, makes the shin bone fixed plate can laminate the shin bone near-end.

Optionally, the sliding block is provided with an anti-slip piece, the anti-slip piece comprises a third spring arranged on the sliding block and an anti-slip ball fixedly connected to one end of the third spring, the surface of the guide block facing the sliding block is provided with a plurality of anti-slip strips, and the anti-slip ball is matched with the anti-slip strips for use.

Through adopting above-mentioned technical scheme, the non slipping spur that sets up can prevent that the shin bone fixed plate is random to slide on the guide block, after adjusting the position of shin bone fixed plate, can fix the shin bone fixed plate at the guide block, when fixed, the antiskid ball can the joint in the inslot between adjacent two antislip strips, and when adjusting the shin bone fixed plate, can make the doctor feel certain pause and frustrate between antiskid ball and the antislip strip, roughly make the doctor know how much distance has been adjusted, therefore the non slipping spur that sets up, regulation to the shin bone fixed plate has played spacing effect.

Optionally, a guide groove extending along the length direction of the guide block is formed in the guide block, a guide strip is arranged in the guide groove in a sliding fit mode, and two ends of the guide strip are fixed with the sliding block.

Through adopting above-mentioned technical scheme, the guide way that sets up can make the shin bone fixed plate slide on the gib block all the time, prevents that the shin bone fixed plate from breaking away from the gib block to make the shin bone fixed plate slide along the length direction of gib block.

Optionally, the tibia fixing plate is arc-shaped, a horizontal bone cutting transverse groove and a vertical bone cutting vertical groove are formed in the tibia fixing plate, and anchor nail holes are formed in the positions, located at the lower end of the bone cutting vertical groove, of the lower surface of the tibia fixing plate and the position, located at the lower end of the bone cutting vertical groove, of the tibia fixing plate.

By adopting the technical scheme, the tibia fixing plate arranged in an arc shape can be better attached to the proximal end of the irregular arc tibia of a human body, and the osteotomy transverse groove and the osteotomy vertical groove are formed in the tibia fixing plate, so that a guiding effect can be achieved on a scalpel in the osteotomy process, the cutting surface of the proximal end of the tibia is in a parallel and level state, a replacement prosthesis is convenient to install, and the fusion degree of the prosthesis and the resected position is higher; the anchor nail hole that sets up makes things convenient for the anchor nail to nail the shin bone fixed plate on the shin bone, when preventing to cut the shin bone of pathological change, the fixed position of shin bone takes place to remove, makes the surface behind the shin bone excision uneven, causes the prosthetic of replacement can't with the better fusion of current shin bone.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the knee joint at the pathological change position is cut according to the actual condition of a patient, the fine adjustment rod can gradually extend out of the mounting column, so that the position of the osteotomy device can be quickly adjusted, a doctor can accurately and quickly finish cutting on the pathological change position of the patient, the physiological pain of the patient is reduced to the maximum extent, and the pathological change position of the patient can be cut for many times by adjusting the extending height of the fine adjustment rod;

2. because the shin bone near-end is anomalous cambered surface, and certain angle has, before the operation, the doctor judges the angle that exists between osteotomy module and the shin bone near-end earlier according to the experience, then through rotating assembly, the rotation knob, the eccentric bar can drive the actuating lever, make the turning block rotate, thereby reach the purpose of the hypsokinesis angle of adjustment osteotomy module, the knee joint position department that the shin bone needs the excision can be better laminated to the osteotomy module after the adjustment, be provided with a plurality of scales on rotating assembly, so that the doctor can be quick adjusts suitable angle, and the osteotomy device can be adjusted according to every patient's actual conditions, make the practicality of osteotomy device better, improve equipment's utilization degree.

3. The osteotomy transverse groove and the osteotomy vertical groove are formed in the tibia fixing plate, so that a guiding effect can be achieved on a scalpel in an osteotomy process, the cutting surface of the proximal end of the tibia is in a parallel and level state, a replacement prosthesis is convenient to install, and the fusion degree of the prosthesis and the resected position is higher; the anchor nail hole that sets up makes things convenient for the anchor nail to nail the shin bone fixed plate on the shin bone, when preventing to cut the shin bone of pathological change, the fixed position of shin bone takes place to remove, makes the surface behind the shin bone excision uneven, causes the prosthetic of replacement can't with the better fusion of current shin bone.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is a schematic view of an osteotomy device embodying embodiments of the present application;

FIG. 3 is a schematic diagram of a trim component embodying embodiments of the present application;

FIG. 4 is a schematic cross-sectional view of a rotating assembly embodying embodiments of the present application;

fig. 5 is a schematic view of a tibial fixation plate and a detachment assembly embodied in an embodiment of the present application;

figure 6 is a cross-sectional view of a slide assembly embodying embodiments of the present application.

Description of reference numerals: 1. an ankle holding device; 2. a wire erecting rod; 3. a fine tuning component; 31. mounting a column; 32. mounting grooves; 33. an adjusting knob; 34. a limiting groove; 35. a fine adjustment rod; 36. a screw; 4. a rotating assembly; 41. a fixed block; 42. rotating the block; 43. a knob; 431. a drop-proof groove; 44. a drive rod; 45. an eccentric rod; 46. a drop-off prevention member; 461. a first spring; 462. anti-drop balls; 47. a limiting member; 471. a second spring; 472. a limiting ball; 5. disassembling the assembly; 51. a fixed seat; 52. disassembling the seat; 53. inserting a rod; 54. a clamping piece; 541. a clamping and connecting plate; 542. a pressure spring; 55. an observation tank; 6. a tibia fixing plate; 61. a osteotomy transverse slot; 62. a bone cutting vertical groove; 63. an anchor hole; 7. a sliding assembly; 71. a guide block; 711. a guide groove; 712. a guide strip; 72. a slider; 73. an anti-slip member; 731. a third spring; 732. an antiskid ball.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses supplementary osteotomy device of shin bone near-end. Referring to fig. 1 and 2, the auxiliary osteotomy device comprises an ankle holding device 1 installed at an ankle, a vertical line rod 2 vertically arranged on the ankle holding device 1 and a fine adjustment component 3 installed at one end of the vertical line rod 2 far away from the ankle holding device 1, a rotating component 4 is arranged on the fine adjustment component 3, a disassembly component 5 is arranged at one end of the rotating component 4 far away from the fine adjustment component 3, a tibia fixing plate 6 is arranged on the disassembly component 5 in a sliding manner, when the auxiliary osteotomy device is used, the ankle holding device 1 is clamped at the ankle, the extension height of the vertical line rod 2 is adjusted, the tibia fixing plate 6 is moved to a position where a patient needs to perform an operation, then the tibia fixing plate 6 is attached to a knee joint position where the patient needs to be resected by adjusting the fine adjustment component 3 and the rotating component 4, and the resected knee joint pathological change position is completed under.

Referring to fig. 2 and 3, the fine adjustment assembly 3 includes a mounting post 31 fixedly connected to one end of the upright post 2 far from the ankle-holding device 1, the mounting post 31 and the upright post 2 are coaxially disposed, the mounting post 31 is of an internal hollow structure, a mounting groove 32 is formed at a position of the mounting post 31 close to the upper end thereof, a circular adjusting knob 33 is rotatably disposed in the mounting groove 32, the adjusting knob 33 is coaxially disposed with the mounting post 31, a square limiting groove 34 is formed on the mounting post 31 above the mounting groove 32, the limiting groove 34 is disposed along the length direction of the mounting post 31, the upper end of the limiting groove 34 is flush with the upper end of the mounting post 31, the lower end is communicated with the position of the mounting groove 32, a fine adjustment rod 35 is vertically and slidably fitted in the limiting groove 34, a screw rod 36 is disposed inside the mounting post 31, the length direction of the screw rod 36 is the same as the length direction of the fine adjustment rod 35, and the upper end of the screw rod 36 is fixed to the lower end of the fine adjustment rod 35, screw rod 36 vertically passes adjusting knob 33 to threaded connection between the two, when needs finely tune, rotates adjusting knob 33, under the effect of screw rod 36 and spacing groove 34, fine setting pole 35 can stretch out from erection column 31 gradually, thereby reaches the purpose of fine setting, and through the height that stretches out of adjusting fine setting pole 35, can carry out many times cutting to patient's pathological change position.

Furthermore, scale marks are arranged on the side surfaces of the periphery of the fine adjustment rod 35, and a doctor can control the extending height of the fine adjustment rod 35 by observing the size of the scale marks, so that the fine adjustment rod can be quickly adjusted to a proper position.

Referring to fig. 2 and 4, the rotating assembly 4 includes a fixed block 41 fixedly connected to the upper end of the fine adjustment rod 35 and a rotating block 42 rotatably disposed on the fixed block 41, the fixed block 41 is disposed vertically, the rotating block 42 is U-shaped, the rotating block 42 is rotatably disposed on the sidewall of the fixed block 41 near the upper end thereof, a knob 43 is rotatably disposed on the sidewall of the fixed block 41 near the lower end thereof, the rotating block 42 and the knob 43 are disposed on both sides of the fixed block 41, one end of the knob 43 penetrates through the fixed block 41 and is flush with the surface of the fixed block 41, a driving rod 44 is fixedly connected to a side plate of the rotating block 42 in an inclined manner, one end of the driving rod 44 far from the rotating block 42 points to the direction of the knob 43, a kidney-shaped slot extending along the length direction of the driving rod 44 is disposed at one end far from the rotating block 42, an, eccentric rod 45 sliding fit is at the kidney-shaped inslot, and when needs angle regulation, rotates knob 43, and eccentric rod 45 can make actuating lever 44 take place the swing at the pivoted in-process to make turning block 42 rotate, because the shin bone near-end is anomalous cambered surface, and has certain angle, the rotating assembly 4 of setting makes the laminating that cuts the bone device can the at utmost to shin bone near-end position department when the knee joint of excision patient's pathological change position.

Furthermore, the fixed block 41 is provided with a retaining member 46 for preventing the knob 43 from falling off the fixed block 41 and a limiting member 47 for limiting the knob 43 after rotating, an annular retaining groove 431 is formed on the peripheral surface of the knob 43 inside the fixed block 41, the retaining member 46 comprises a first spring 461 and a retaining ball 462 fixedly connected to one end of the first spring 461, a groove for accommodating the first spring 461 is formed in the position inside the fixed block 41 and located in the retaining groove 431, the retaining ball 462 is always abutted to the retaining groove 431 under the action of the elastic force of the first spring 461, and the retaining ball 462 slides in the retaining groove 431 during the rotation of the knob 43; the limiting member 47 includes a second spring 471 and a limiting ball 472 fixedly connected to one end of the second spring 471, a groove for accommodating the second spring 471 is formed in the position inside the fixing block 41 and close to the eccentric rod 45, under the action of the elastic force of the second spring 471, the limiting ball 472 can be always abutted to the peripheral surface of the knob 43, a plurality of grooves for matching the limiting ball 472 are formed in the peripheral surface of the knob 43, the grooves are circumferentially arranged at equal angles along the axis of the knob 43, the limiting ball 472 can be clamped in the grooves, and after the rotation of the knob 43 is completed, the limiting ball 472 can be always clamped in the grooves.

Referring to fig. 2 and 5, the detaching assembly 5 is fixedly connected to a fixed seat 51 at the upper end of the rotating block 42 and a detaching seat 52 detachably connected to the fixed seat 51, the fixed seat 51 is horizontally arranged, the detaching seat 52 is perpendicular to the fixed seat 51, and when the osteotomy device is not in use, the detaching seat 52 is in a vertical state, an inserting rod 53 is fixedly connected to one end of the fixed seat 51 far away from the rotating block 42, the inserting rod 53 extends towards the direction far away from the fixed seat 51, and the inserting rod 53 penetrates through the lower end of the detaching seat 52; the fixing seat 51 is provided with a clamping piece 54 for fixing the dismounting seat 52 on the fixing seat 51, the clamping piece 54 comprises a clamping plate 541 rotatably arranged on the fixing seat 51, the length direction of the clamping plate 541 is the same as that of the fixing seat 51, the end, facing the dismounting seat 52, of the clamping plate 541 is in a curved hook shape, a groove for hooking the clamping plate 541 is formed in the dismounting seat 52, one end, away from the dismounting seat 52, of the clamping plate 541 is provided with a pressure spring 542, the pressure spring 542 is detachably connected to the fixing seat 51, one end of the pressure spring 542 is connected with the clamping plate 541, the other end of the pressure spring 542 is connected with the fixing seat 51, when the dismounting seat 52 needs to be dismounted from the fixing seat 51, the clamping plate 541 is pressed, the pressure spring 542 is compressed, the end, in the hook shape, of the clamping plate 541, can be separated from the dismounting seat 52, and then the dismounting seat 52 is slid and dismounted along the direction of the insertion rod 53.

An observation groove 55 extending along the length direction of the detaching seat 52 is formed in the detaching seat, a graduated scale is arranged on the notch surface of the observation groove 55 facing the fixed seat 51, after the osteotomy device moves to the position of the knee joint of the patient needing to be resected, an anchor is pre-driven into the observation groove 55, when the angle of the osteotomy device is adjusted by rotating the knob 43, the position of the anchor in the observation groove 55 can be changed, and the moving distance can be observed through the size of the graduated scale.

Referring to fig. 2 and 6, the tibia fixing plate 6 is horizontally arranged, the tibia fixing plate 6 is perpendicular to the detaching seat 52, a sliding assembly 7 is arranged between the lower surface of the tibia fixing plate 6 and the side surface of the detaching seat 52, the sliding assembly 7 includes a guide block 71 which is arranged below the tibia fixing plate 6 and perpendicular to the detaching seat 52, and a sliding block 72 which is in sliding fit with the guide block 71, the sliding block 72 can slide along the length direction of the guide block 71, and the upper end of the sliding block 72 is fixedly connected with the tibia fixing plate 6; the guide block 71 is provided with a guide groove 711 extending along the length direction of the guide block, a guide strip 712 is arranged in the guide groove 711 in a sliding manner, two ends of the guide strip 712 are fixedly connected with the sliding block 72, and the guide strip 712 and the guide groove 711 are arranged in a sliding fit manner, so that the sliding block 72 can be prevented from sliding off the guide block 71; the sliding component 7 that sets up, after the position department of shin bone near-end is adjusted to the osteotomy module, can transversely adjust the osteotomy module through sliding component 7, make the removal that shin bone fixed plate 6 can be quick to the position that needs the excision pathological change to the sliding component 7 that sets up conveniently adjusts the osteotomy module, makes shin bone fixed plate 6 can laminate the shin bone near-end.

The sliding block 72 is provided with an anti-slip part 73, the anti-slip part 73 comprises a third spring 731 arranged on the sliding block 72 and an anti-slip ball 732 fixedly connected with one end of the third spring 731, the surface of the sliding block 72 facing the guide block 71 is provided with a groove for accommodating the third spring 731, the surface of the guide block 71 facing the sliding block 72 is provided with a plurality of anti-slip strips, the anti-slip ball 732 is matched with the anti-slip strips for use, under the action of the third spring 731, the anti-slip ball 732 can always abut against the anti-slip strips, the anti-slip part 73 can prevent the tibia fixing plate 6 from randomly sliding on the guide block 71, after the position of the tibia fixing plate 6 is adjusted, the tibia fixing plate 6 can be fixed on the guide block 71, when the anti-slip ball 732 can be clamped in the groove between two adjacent anti-slip strips, and when the tibia fixing plate 6 is adjusted, a doctor can feel a certain pause feeling between the anti-slip ball 732 and the anti-slip strips, the doctor can know the distance to be adjusted approximately, and the anti-slip piece 73 is arranged to limit the adjustment of the tibia fixing plate 6.

The tibia fixing plate 6 is provided with the horizontally-arranged osteotomy transverse groove 61 and the vertically-arranged osteotomy vertical groove 62, in the osteotomy process, a doctor can excise diseased bones of a patient along the osteotomy transverse groove 61 and the osteotomy vertical groove 62, and in the osteotomy process, the scalpel can be guided, so that the cutting surface of the proximal end of the tibia is in a parallel and level state, a replacement prosthesis is convenient to install, and the fusion degree of the prosthesis and the excised position is higher; all be provided with anchor hole 63 in the position department that the lower surface of shin bone fixed plate 6 and shin bone fixed plate 6 are located cut bone vertical slot 62 lower extreme, install medical anchor in anchor hole 63, after cutting the bone device and installing to the exact position, the doctor can fix shin bone fixed plate 6 on the shin bone, then along cutting bone transverse slot 61 with cut bone vertical slot 62 to the shin bone that the patient needs to cut, anchor hole 63 of setting, make things convenient for the anchor to be able to pin shin bone fixed plate 6 on the shin bone, when preventing to cut the shin bone of pathological change, the fixed position of shin bone takes place to remove, make the surface behind the shin bone excision uneven, cause the unable and better fusion of current shin bone of prosthesis of replacement.

The implementation principle of the auxiliary osteotomy device for the proximal tibia of the embodiment of the application is as follows: when needs cutting patient pathological change position department, press from both sides ankle ware 1 tightly to patient ankle department, adjust the height of staff pole 2 earlier, roughly adjust suitable position, then adjust fine setting subassembly 3 and rotating assembly 4 in proper order, make the shin bone fixed plate 6 laminate with the shin bone position that the patient needs the excision, then fix shin bone fixed plate 6 on the skeleton through the rivet, under the effect of shin bone fixed plate 6 direction, excise the position department of patient's pathological change.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. An auxiliary osteotomy device for the proximal tibia, comprising: comprises a fine adjustment component (3) which is arranged at one end of a vertical pole (2) far away from an ankle holding device (1), wherein the fine adjustment component (3) comprises an installation column (31) fixedly connected with one end of the vertical pole (2), an adjusting button (33) rotatably arranged on the installation column (31) and a fine adjustment rod (35) which is arranged on the installation column (31) and is square, the installation column (31) and the adjusting button (33) are coaxially arranged with the vertical pole (2), in addition, an installation groove (32) is arranged on the installation column (31), the adjusting button (33) is rotatably arranged in the installation groove (32), a limit groove (34) communicated with the installation groove (32) is arranged at the end part of the installation column (31) far away from the vertical pole (2), the fine adjustment rod (35) is in the limit groove (34) in a sliding fit manner, a screw rod (36) fixedly connected with one end of the fine adjustment rod (35) is arranged inside the installation column (31), the screw rod (36) passes through the knob (43) and is in threaded fit with the knob.

2. The proximal tibial auxiliary osteotomy device of claim 1, wherein: the utility model discloses a fine tuning pole (35) is including fixed block (41), the rotation block (42) that set up in fixed block (41) upper end one side and rotate knob (43) that set up in fixed block (41) lower extreme one side that stretch out end and vertical setting including fixed connection at fine tuning pole (35), rotation setting, knob (43) and rotation block (42) set up the both sides at fixed block (41), and fixed block (41) are passed to the one end of knob (43), rotation block (42) one side fixedly connected with actuating lever (44), the kidney slot has been seted up to the one end that rotating block (42) were kept away from in actuating lever (44), fixedly connected with eccentric rod (45) on knob (43) the terminal surface towards actuating lever (44), eccentric rod (45) sliding fit is at the kidney slot.

3. The proximal tibial auxiliary osteotomy device of claim 2, wherein: the anti-falling device is characterized in that an anti-falling part (46) and a limiting part (47) are arranged inside the fixed block (41), a circumferential surface of the knob (43) located inside the fixed block (41) is provided with an annular anti-falling groove (431), the anti-falling part (46) comprises a first spring (461) arranged on the fixed block (41) and an anti-falling ball (462) fixed at one end of the first spring (461), the anti-falling ball (462) is arranged in the anti-falling groove (431), the limiting part (47) comprises a second spring (471) arranged on the fixed block (41) and a limiting ball (472) fixed at one end of the second spring (471), and a plurality of grooves matched with the limiting ball (472) are formed in the circumferential surface of the fixed block (41) at equal angles.

4. The proximal tibial auxiliary osteotomy device of claim 2, wherein: the one end that fine tuning pole (35) was kept away from to rotating block (42) is provided with dismantlement subassembly (5), dismantle subassembly (5) including fixed connection fixing base (51) on rotating block (42) and can dismantle dismantlement seat (52) of connection on fixing base (51), the one end fixedly connected with inserted bar (53) of rotating block (42) is kept away from to fixing base (51), inserted bar (53) pass dismantlement seat (52), be provided with joint spare (54) on fixing base (51), joint spare (54) are including rotating joint plate (541) that sets up on fixing base (51) and pressure spring (542) of setting on fixing base (51), joint plate (541) is the hook-like towards the one end of dismantling seat (52) to hook on dismantling seat (52), pressure spring (542) set up the one end of dismantling seat (52) is kept away from at joint plate (541), one end of the pressure spring (542) is abutted with the clamping plate (541), and the other end of the pressure spring is abutted with the fixed seat (51).

5. The proximal tibial auxiliary osteotomy device of claim 4, wherein: the dismounting seat (52) is provided with an observation groove (55) along the length direction of the dismounting seat, an anchor is arranged in the observation groove (55), and a graduated scale is arranged on the surface of the dismounting seat (52) which is positioned in the observation groove (55) and faces the fixed seat (51).

6. The proximal tibial auxiliary osteotomy device of claim 4, wherein: dismantle one side of seat (52) and be provided with sliding assembly (7), sliding assembly (7) include with dismantle guide block (71) and sliding block (72) of sliding fit on guide block (71) that seat (52) perpendicular set up, the one end that guide block (71) were kept away from in sliding block (72) is fixed with shin bone fixed plate (6).

7. The proximal tibial auxiliary osteotomy device of claim 6, wherein: the anti-skidding device is characterized in that an anti-skidding piece (73) is arranged on the sliding block (72), the anti-skidding piece (73) comprises a third spring (731) arranged on the sliding block (72) and an anti-skidding ball (732) fixedly connected to one end of the third spring (731), a plurality of anti-skidding strips are arranged on the surface, facing the sliding block (72), of the guide block (71), and the anti-skidding ball (732) is matched with the anti-skidding strips for use.

8. The proximal tibial auxiliary osteotomy device of claim 6, wherein: the guide block (71) is provided with a guide groove (711) extending along the length direction of the guide block, a guide strip (712) is arranged in the guide groove (711) in a sliding fit mode, and two ends of the guide strip (712) are fixed with the sliding block (72).

9. The proximal tibial auxiliary osteotomy device of claim 6, wherein: tibia fixed plate (6) are the arc, and set up the horizontal setting on tibia fixed plate (6) cut bone transverse groove (61) and cut bone vertical slot (62) of vertical setting, tibia fixed plate (6) lower surface and tibia fixed plate (6) are located and cut the position department of bone vertical slot (62) lower extreme and all are provided with anchor hole (63).