CN116509499B - A multifunctional fine-adjustable tibial medullary cavity positioning osteotomy device - Google Patents
A multifunctional fine-adjustable tibial medullary cavity positioning osteotomy deviceInfo
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- CN116509499B CN116509499B CN202310424751.5A CN202310424751A CN116509499B CN 116509499 B CN116509499 B CN 116509499B CN 202310424751 A CN202310424751 A CN 202310424751A CN 116509499 B CN116509499 B CN 116509499B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
- A61B17/1662—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans for particular parts of the body
- A61B17/1675—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans for particular parts of the body for the knee
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
- A61B17/1657—Bone breaking devices
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1732—Guides or aligning means for drills, mills, pins or wires for bone breaking devices
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/16—Instruments for performing osteoclasis; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1739—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body
- A61B17/1764—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body for the knee
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Abstract
本申请涉及医疗器械的领域，尤其是涉及一种多功能微调胫骨髓腔定位截骨装置，包括胫骨髓腔定位组件，包括固定块、穿设安装在固定块上的髓针块，以及穿设在所述髓针块中心处用于插入髓腔内的髓针；胫骨截骨组件，包括胫骨定位器、安装杆，以及套设在所述安装杆上的胫骨截骨导向器；胫骨内外翻角调节组件，包括滑块，以及转动安装在所述固定块上的角度板；胫骨后倾角调节组件，包括后倾卡块，以及对所述后倾卡块进行限位的后倾调整块；其中，所述滑块与所述后倾卡块均滑动设置在髓针上，调整后将所述滑块与所述后倾卡块朝向靠近胫骨方向滑动直至分别与角度板、后倾调整块贴合固定位置。本申请具有对胫骨内外翻角以及后倾角精确调整的效果。
The present application relates to the field of medical devices, and in particular to a multifunctional fine-tuning tibial medullary cavity positioning osteotomy device, comprising a tibial medullary cavity positioning assembly, comprising a fixing block, a medullary needle block installed on the fixing block, and a medullary needle installed at the center of the medullary needle block for inserting into the medullary cavity; a tibial osteotomy assembly, comprising a tibial locator, a mounting rod, and a tibial osteotomy guide sleeved on the mounting rod; a tibial varus and varus angle adjustment assembly, comprising a slider and an angle plate rotatably installed on the fixing block; a tibial tilt angle adjustment assembly, comprising a tilt block and a tilt adjustment block for limiting the tilt block; wherein the slider and the tilt block are both slidably set on the medullary needle, and after adjustment, the slider and the tilt block are slid toward the direction close to the tibia until they are respectively fixed in position with the angle plate and the tilt adjustment block. The present application has the effect of accurately adjusting the tibial varus and varus angles and tilt angles.
Description
Technical Field
The application relates to the field of medical equipment, in particular to a multifunctional fine tuning shank bone marrow cavity positioning osteotomy device.
Background
Knee joint replacement is a surgical method for relieving knee joint pain and correcting knee joint deformity by using an artificial prosthesis, thereby improving knee joint function and improving human life quality. The tibia osteotomy is an indispensable key step of knee joint replacement, an extramedullary positioning osteotomy mode is generally used in the current operation, and is generally composed of a tibia osteotomy plate, an extramedullary force line rod, a force line adjusting rod and an ankle embracing device, and the tibia intramedullary positioning osteotomy device is also a relatively rare device on the current operation table.
For the existing extramedullary positioning, multiple times of verification are needed to ensure that the extramedullary positioner can accurately position the medullary cavity of the human body (namely the anatomical axis of the tibia), the steps are complex, time and labor are wasted, and even if the intramedullary cavity is not easily aligned. When the tibia is cut by the intramedullary bone, the internal and external turning angles cannot be accurately adjusted, although the internal and external turning angles are carved on the ankle embracing device, in the actual operation process of the operation, the height of the intramedullary force line rod in the force line adjusting rod needs to be adjusted, the integral height is changed, and the angle scale at the bottom is inaccurate in the actual use. Similarly, when the tibia is osteotomy, the backward tilt angle cannot be accurately determined, and the ankle embracing device is carved with the backward tilt angle, but in the actual operation process of the operation, the height of the intramedullary force line locator needs to be adjusted, so that the scale of the backward tilt angle is inaccurate in the actual use.
The existing tibia intramedullary positioning osteotomy device can only realize tibia intramedullary positioning, and can not adjust the varus and valgus angle, but in the replacement of the total knee joint, the valgus angle is corrected according to the actual condition of a patient, and the force line is restored. So doctors often need to adjust the varus-valgus angle of the tibia according to the bone condition of patients in operation so as to cut out a proper tibia plane. The existing tibial intramedullary positioning osteotomy device cannot adjust the backward tilt angle, and the backward tilt angle needs to be adjusted according to respective conditions of products of knee joint replacement, for example, if the tibial plateau pad does not have the backward tilt angle of 3 degrees, the tibial osteotomy surface needs to be cut out of a plane with the backward tilt of 3 degrees, and whether the upright post on the products of the tibial plateau support is vertical or not has the same influence on the tibial osteotomy surface, and generally, the tibial osteotomy surface is selected to be cut into the backward tilt 3 degrees.
With respect to the above related art, the inventor believes that the prior art has a defect that the varus angle and the retroversion angle of the tibia cannot be accurately adjusted during the operation.
Disclosure of Invention
In order to achieve the effect of accurately adjusting the internal and external turning angles and the backward inclination angle of the tibia, the application provides a multifunctional fine tuning tibia marrow cavity positioning osteotomy device.
The application provides a multifunctional fine tuning shank bone marrow cavity positioning osteotomy device, which adopts the following technical scheme:
Multifunctional fine tuning shin bone marrow cavity positioning osteotomy device includes:
The tibia marrow cavity positioning assembly comprises a fixed block which is abutted against one end of the tibia far away from the ankle, a marrow needle block which is arranged on the fixed block in a penetrating way, and a marrow needle which is arranged in the center of the marrow needle block in a penetrating way and is used for being inserted into the marrow cavity;
the tibia osteotomy device comprises a tibia osteotomy component, a tibia locator, a mounting rod fixedly connected to one face of the tibia locator, facing the tibia, and a tibia osteotomy guide sleeved on the mounting rod;
The tibia internal and external turning angle adjusting assembly comprises a sliding block arranged on one side of the marrow needle block away from the tibia and sleeved on the marrow needle, and an angle plate rotatably arranged on the fixed block, the peripheral surface of which is attached to the sliding block, and the angle of the internal and external turning angles of the tibia osteotomy guide is adjusted by attaching the sliding block to the angle plate at different angles;
The tibial caster angle adjusting assembly comprises a caster fixture block arranged above the fixed block and attached to the fixed block, and a caster adjusting block which is used for limiting the caster fixture block and is matched with the caster fixture block, wherein the caster adjusting block is provided with an angle scale, and the caster fixture block is attached to different positions of the caster adjusting block with the angle scale to adjust the caster angle of the tibial resection guide;
The sliding block and the backward tilting fixture block are arranged on the marrow needle in a sliding way, the sliding block and the backward tilting fixture block are adjusted to the internal and external turning angle and the backward tilting angle after sliding towards the direction far away from the tibia, and the sliding block and the backward tilting fixture block slide towards the direction close to the tibia until being respectively attached to the angle plate and the backward tilting adjustment block at fixed positions.
According to the technical scheme, in the operation process, holes are formed in the upper portion of a shank bone marrow cavity, then the whole set of bone marrow cavity positioning and osteotomy device is assembled, a marrow needle is inserted into the marrow cavity, a sliding block sliding on the marrow needle is lifted up in the direction away from a tibia, the marrow cavity positioner is swung left and right to adjust the varus angle, an angle plate can reflect the specific angle of the varus and valgus, the sliding block is loosened after the angle plate is adjusted, the adjusted valgus angle is fixed after the sliding block is attached to the angle plate, a backward tilting clamping block sliding on the marrow needle is lifted up in the direction away from the tibia, a backward tilting tibial osteotomy guide drives a backward tilting adjusting block on the marrow cavity positioner to adjust the backward tilting angle of a tibial osteotomy face, an angle scale on the backward tilting adjusting block can be used for showing the backward tilting angle, the backward tilting block is put down after the adjustment, the backward tilting block is attached to the backward tilting adjusting block, the backward tilting angle of the tibial section can be locked, the osteotomy plate is adjusted to a proper tibial position through a mounting rod, and the osteotomy face is accurately osteotomy.
Preferably, a first positioning block is arranged on the end face, close to one end face of the angle plate, of the sliding block, a plurality of first positioning grooves are uniformly formed in the peripheral face of the angle plate according to angles, and the first positioning block is clamped in the first positioning groove corresponding to one of the angles.
By adopting the technical scheme, after the internal and external turning angles are adjusted, the first positioning blocks are clamped in the corresponding first positioning grooves according to the required angles, so that the effect of angle adjustment and then fixation is achieved.
Preferably, the angle plate is of a symmetrical structure, the angle bisector of the angle plate is a zero line, and the angle ranges of the two sides of the zero line are all 0-11 degrees.
Through adopting above-mentioned technical scheme, the scale on the front view angle board has embodied the concrete angle of inside and outside turning over, and the angle of inside and outside turning over is general 10 just can satisfy clinical demand, so the angle scope of angle board can satisfy clinical demand completely, and the accurate adjustment of being convenient for more.
Preferably, the backward tilting fixture block comprises a base and a positioning rod, wherein the base is attached to the fixing block, the positioning rod is arranged on one face of the base away from the tibia, the positioning rod is far away from one end of the base and is provided with a second positioning block, the backward tilting fixture block comprises a rotating part and a moving part, the rotating part is far away from the end face of one end of the moving part, a plurality of second positioning grooves are uniformly formed in the end face of the moving part according to angles, and the positioning block is clamped in the second positioning groove corresponding to one angle.
Through adopting above-mentioned technical scheme, after adjusting the back inclination, lift the direction of keeping away from the tibia with the back inclination fixture block, the base also leaves the fixed block this moment, and the orientation of keeping away from the direction of tibia of locating piece removes, and moving part can remove according to the rotation angle of rotation portion when rotating rotation portion, loosens the back inclination fixture block after adjusting well, makes the locating piece joint in the second constant head tank that the angle that adjusts corresponds to realize the fixed to the back inclination.
Preferably, the second positioning groove of the rotating part near one end is a zero line, and the angle range of the rotating part is 0-8 degrees.
By adopting the technical scheme, the back inclination angle can be conveniently adjusted in the operation process, the back inclination angle can be conveniently fixed, and the scales of the rotating part can completely meet clinical requirements.
Preferably, the tibia positioner is provided with a yielding port towards one end of the fixed block, the fixed block is positioned in the yielding port, the moving part is arranged on the tibia positioner in a sliding manner, and the mounting rod is arranged on one side away from the yielding port.
Through adopting above-mentioned technical scheme, the setting of the mouth of stepping down can reduce the volume of device, saves more space and convenient when carrying out the osteotomy, and after the rotation of rotation portion, the removal portion slides corresponding distance on the tibia locator according to the rotatory angle of rotation portion, the operation of being convenient for.
Preferably, one end of the base, which is close to the mounting rod, extends towards one surface, which is far away from the tibia, and a backward tilting baffle plate is arranged on the base, and a backward tilting stop block is arranged right above the backward tilting baffle plate, corresponding to the backward tilting baffle plate.
Through adopting above-mentioned technical scheme, when lifting backward the fixture block to the one side of keeping away from the tibia, backward incline the dog and block backward incline baffle to the distance of keeping away from tibia direction removal, make backward incline the motion control of fixture block in backward incline the dog and backward incline the distance within range between the baffle, avoid moving distance overlength and waste time, also be convenient for operation in-process fast operation simultaneously.
Preferably, a reinforcing plate is arranged on the outer wall of one end of the sliding block far away from the tibia.
Through adopting above-mentioned technical scheme, the reinforcing plate plays the effect of handle, is convenient for remove the slider orientation in the in-process of operation in the direction of keeping away from the tibia, avoids the unhooking.
Preferably, the end of the intramedullary nail remote from the tibia is provided with a handle.
By adopting the technical scheme, the handle is convenient for inserting the marrow needle into the marrow cavity, so that the marrow needle is more stable in the process of inserting the marrow needle into the marrow cavity.
Preferably, a spanner for fixing the tibia osteotomy guide on the mounting rod is arranged on the tibia osteotomy guide.
Through adopting above-mentioned technical scheme, the tibia cuts the bone director and can adjust 2 millimeters distance from top to bottom on the installation pole according to the operation demand, after adjusting the position of tibia cuts the bone director, cuts the bone director with the tibia and fixes on the installation pole through the spanner, is convenient for cut the bone.
In summary, the present application includes at least one of the following beneficial technical effects:
1. In the operation process, the hole is formed above the bone marrow cavity of the tibia, then the whole set of bone marrow cavity positioning osteotomy device is assembled, the bone marrow needle is inserted into the bone marrow cavity, the sliding block sliding on the bone marrow needle is lifted up to the direction away from the tibia, the bone marrow cavity positioner is swung left and right to adjust the varus angle, the angle plate can embody the specific valgus angle, the sliding block is loosened after the angle plate is adjusted, the adjusted valgus angle is fixed after the sliding block is attached to the angle plate, the backward tilting clamping block sliding on the bone marrow needle is lifted up to the direction away from the tibia, the backward tilting tibial osteotomy guide drives the backward tilting adjusting block on the bone marrow cavity positioner to adjust the backward tilting angle of the tibial osteotomy surface, the angle scale on the backward tilting adjusting block can represent the angle of the backward tilting angle, the backward tilting block is put down to attach to the backward tilting adjusting block after the adjustment, the backward tilting angle of the tibial section can be locked, the tibial osteotomy plate is adjusted to a proper osteotomy position through the mounting rod, the effect of accurately adjusting the valgus angle, the backward tilting angle and the valgus angle and the osteotomy position can be adjusted to the tibia, and the osteotomy position can be adjusted more accurately.
2. The scale on the front view angle plate reflects the specific angle of the internal and external turnings, and the clinical requirement can be met by the internal and external turnings of +/-10 degrees, so that the clinical requirement can be completely met by the angle range of the angle plate, and the angle plate is more convenient to accurately adjust.
3. After the back tilt angle is adjusted, the back tilt clamping block is lifted in the direction away from the tibia, the base is separated from the fixed block at the moment, the positioning block moves in the direction away from the tibia, the moving part moves according to the rotation angle of the rotating part while rotating the rotating part, and the back tilt clamping block is loosened after the back tilt clamping block is adjusted, so that the positioning block is clamped in the second positioning groove corresponding to the adjusted angle, and the back tilt angle is fixed.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a multi-functional fine tuning tibial bone marrow cavity positioning osteotomy device in accordance with an embodiment of the present application;
FIG. 2 is a schematic elevational structural view of a device embodying the present application;
FIG. 3 is a schematic left-hand structural view embodying the present application;
Fig. 4 is an enlarged partial schematic view showing part a.
The reference numerals indicate 1, a tibia intramedullary cavity positioning component, 11, a fixing block, 111, a fixing seat, 112, a fixing plate, 12, a marrow needle block, 121, a square block, 122, a column block, 13, a marrow needle, 131, a handle, 2, a tibia osteotomy component, 21, a tibia positioner, 211, a yielding port, 22, a mounting rod, 23, a tibia osteotomy guide, 231, a spanner, 3, a tibia varus-valgus angle adjusting component, 31, a sliding block, 311, a first positioning block, 312, a reinforcing plate, 32, an angle plate, 321, a first positioning groove, 4, a tibia retroversion angle adjusting component, 41, a retroversion clamping block, 411, a base, 412, a positioning rod, 413, a second positioning block, 42, a retroversion adjusting block, 421, a rotating part, 422, a moving part, 423, a second positioning groove, 43, a retroversion baffle, 44 and a retroversion stop.
Detailed Description
The application is described in further detail below with reference to fig. 1-4.
The embodiment of the application discloses a multifunctional fine tuning shank bone marrow cavity positioning osteotomy device. Referring to fig. 1 and 2, the tibial bone marrow cavity positioning osteotomy device includes a tibial bone marrow cavity positioning assembly 1 for positioning during surgery, a tibial osteotomy assembly 2 for performing osteotomies, a tibial varus-valgus-angle adjustment assembly 3 for adjusting valgus angle during surgery, and a tibial post-tilt angle adjustment assembly 4 for adjusting post-tilt angle during surgery. The tibial bone marrow cavity positioning assembly 1 comprises a fixed block 11 which is abutted against one end of the tibia far away from the ankle, a marrow needle block 12 which is installed on the fixed block 11 in a penetrating way, and a marrow needle 13 which is inserted into the marrow cavity and penetrates through the center of the marrow needle block 12.
Referring to fig. 1, the fixing block 11 includes a fixing base 111 and a fixing plate 112 vertically fixedly connected with the fixing base 111, the fixing base 111 is square, a square opening is formed in the center of the fixing base 111, and the intramedullary nail block 12 is disposed in the square opening. The marrow needle block 12 comprises a square block 121 and a cylindrical block 122, wherein the center line of the square block 121 and the center line of the cylindrical block 122 are coincident, the square block 121 is arranged on one side close to the tibia, the cylindrical block 122 is vertically and fixedly connected at the center of one surface of the square block 121 far away from the tibia, and the square block 121 is in rotary connection with the fixed seat 111. The fixed plate 112 is provided with two, and two fixed plate 112 symmetry sets up, and two fixed plate 112 respectively perpendicular rigid coupling on the outer wall that fixing base 111 is relative, and two fixed plate 112 are that one end flushes with the one side of fixing base 111 orientation tibia, and one of them fixed plate 112 of laminating of one side of square piece 121 sets up, and the chamfer setting is done to the one end that the fixed plate 112 kept away from the tibia.
Referring to fig. 1 and 3, a needle 13 opening is formed in the center of the needle block 12 according to the diameter of the needle 13, the needle 13 is inserted into the tibia after passing through the needle 13 opening in use, and one end of the needle block 12, which is close to the tibia, is provided with an arc surface, so that rotation and installation are facilitated. One end of the marrow needle 13 is provided with a handle 131, the marrow needle 13 is vertically fixedly connected at the center of the length direction of the handle 131 and is of a T-shaped structure, a plurality of grooves which are convenient to hold in the use process are formed in the handle 131, the handle 131 is positioned at one end far away from the tibia in the operation process, the handle 131 is convenient for inserting the marrow needle 13 into the marrow cavity, and the process of inserting the marrow needle 13 into the marrow cavity is firmer.
Referring to fig. 1 and 3, the tibial varus-valgus angle adjusting assembly 3 includes a slider 31 disposed on one side of a cylindrical block 122 far away from a square block 121, and an angle plate 32 rotatably mounted on one side of the square block 121 far away from the attachment with a fixed plate 112, wherein the slider 31 is attached to the circumferential surface of the angle plate 32, the slider 31 is sleeved on a needle 13, the slider 31 is slidably disposed, one end of the slider 31 near the angle plate 32 is provided with a first positioning block 311, and optionally, the first positioning block 311 is triangular, a plurality of first positioning grooves 321 are uniformly formed on the circumferential surface of the angle plate 32 according to the angle, and the first positioning block 311 is clamped in the corresponding first positioning groove 321 according to the required angle after the valgus angle is adjusted, thereby achieving the effect of fixing after the adjustment of the angle.
Referring to fig. 2, the angle plate 32 is of a fan-shaped symmetrical structure, the center of the angle plate 32 is rotationally connected with the square block 121, a limit post is arranged on the fixed plate 112 close to one side of the angle plate 32, the limit post is arranged on one surface of the fixed plate 112 close to the angle plate 32 and is in a range of the angle plate 32, the angular bisector of the angle plate 32 is a zero-line, the angular ranges on both sides of the zero-line are all 0-11 degrees, scales on the front view angle plate 32 reflect specific angles of internal and external turning, the internal and external turning angles are generally +/-10 degrees, clinical requirements can be met, the angular range of the angle plate 32 can completely meet clinical requirements, and accurate adjustment is facilitated. One end of the sliding block 31 far away from the cylindrical block 122 is fixedly connected with a reinforcing plate 312, and the reinforcing plate 312 plays a role of a handle 131, so that the sliding block 31 can be conveniently moved towards a direction far away from tibia in the operation process, and the hand slip is avoided.
Referring to fig. 1 and 3, the tibial caster adjustment assembly 4 includes a caster block 41 disposed above the fixed block 11 in engagement with the fixed block 11, and a caster adjustment block 42 mounted on the fixed block 11 for use with the caster block 41 and for limiting the caster block 41. The backward tilting fixture block 41 comprises a base 411 which is attached to the surface, far away from the tibia, of the fixed block 11, and a positioning rod 412 which is arranged on the surface, far away from the tibia, of the base 411 and is vertically and fixedly connected with the base 411, and one end, far away from the base 411, of the positioning rod 412 is provided with a second positioning block 413. The recline adjusting block 42 includes a rotating portion 421 and a moving portion 422, and the rotating portion 421 is rotatably mounted on a surface of the fixed block 11 adjacent to the mounting angle plate 32.
Referring to fig. 3 and 4, the rotating portion 421 is vertically disposed with the moving portion 422, the rotating portion 421 and the moving portion 422 are integrally formed, a plurality of second positioning grooves 423 are uniformly formed on an end surface of the rotating portion 421, which is far away from one end of the moving portion 422, according to an angle, the second positioning groove 423 of the rotating portion 421, which is close to one end, is a zero line, the angle range of the rotating portion 421 is 0-8 °, after the back tilt angle is adjusted, the back tilt clamping block 41 is lifted up in a direction far away from the tibia, at this time, the base 411 is also separated from the fixed block 11, the positioning block moves in a direction far away from the tibia, the moving portion 422 moves according to a rotation angle of the rotating portion 421 while rotating the rotating portion 421, and the back tilt clamping block 41 is released after adjustment, so that the positioning block is clamped in the second positioning groove 423 corresponding to the adjusted angle, and the scale of the rotating portion 421 can completely meet clinical requirements. The base 411 is provided with the backward tilt baffle 43 towards keeping away from the extension of the one side of tibia, and the position that fixed block 11 corresponds backward tilt baffle 43 is provided with backward tilt dog 44 directly over backward tilt baffle 43, when lifting backward tilt fixture block 41 to the one side of keeping away from the tibia, backward tilt dog 44 blocks backward tilt baffle 43 to the distance of keeping away from the tibia direction removal, makes the motion control of backward tilt fixture block 41 in the distance range between backward tilt dog 44 and backward tilt baffle 43, avoids moving distance overlength and waste time, also is convenient for the quick operation of operation in-process simultaneously.
Referring to fig. 1, the tibial osteotomy assembly 2 includes a tibial locator 21, a mounting rod 22 fixedly attached to a tibial-facing side of the tibial locator 21, and a tibial osteotomy guide 23 sleeved on the mounting rod 22. The mouth 211 of stepping down has been seted up towards the one end of fixed block 11 to tibial locator 21, and fixed block 11 is located the mouth 211 of stepping down, and remove portion 422 slip setting is on tibial locator 21, and installation pole 22 sets up and is keeping away from the one side that the mouth 211 of stepping down was faced, and installation pole 22 and tibial locator 21 vertical rigid coupling, the setting of stepping down mouthful 211 can reduce the volume of device, saves more space and convenient when carrying out osteotomy, and after rotation portion 421 is rotatory, remove portion 422 slides corresponding distance on tibial locator 21 according to the rotatory angle of rotation portion 421, the operation of being convenient for. The tibia osteotomy guide 23 is respectively arranged at two corresponding to the left tibia and the right tibia of the human body, the two tibia osteotomy guides 23 are symmetrical in structure, and the tibia osteotomy guide can be replaced according to the actual condition of the operation. The tibia osteotomy guide 23 is also provided with a spanner 231 for fixing the tibia osteotomy guide 23 on the mounting rod 22, the tibia osteotomy guide 23 can be adjusted by a distance of 2mm up and down on the mounting rod 22 according to operation requirements, and after the position of the tibia osteotomy guide 23 is adjusted, the tibia osteotomy guide 23 is fixed on the mounting rod 22 through a handle 131, so that osteotomy is facilitated.
The embodiment of the application has the implementation principle that during operation, firstly, a hole for installing the marrow needle 13 is formed in the tibia, the marrow needle 13 is inserted into the marrow cavity through the marrow needle block 12, the sliding block 31 is lifted in the direction far away from the tibia, the internal and external turning angles are adjusted, the sliding block 31 is loosened to enable the first positioning block 311 to be clamped in the first positioning groove 321, the adjusted internal and external turning angles are fixed, the backward tilting clamping block 41 is lifted in the direction far away from the tibia, the backward tilting angle is adjusted, the backward tilting clamping block 41 is loosened to enable the second positioning block 413 to be clamped in the second positioning groove 423, the adjusted backward tilting angle is fixed, the position of the tibia osteotomy guide 23 on the mounting rod 22 is adjusted, and the tibia osteotomy guide 23 is fixed on the mounting rod 22 through the spanner 231, so that osteotomy is facilitated.
The above embodiments are not intended to limit the scope of the application, so that the equivalent changes of the structure, shape and principle of the application are covered by the scope of the application.
Claims (8)
1. A multi-functional fine tuning shin bone marrow cavity location osteotomy device, characterized by comprising:
The tibia marrow cavity positioning assembly (1) comprises a fixed block (11) which is abutted against one end of the tibia far away from the ankle, a marrow needle block (12) which is arranged on the fixed block (11) in a penetrating way, and a marrow needle (13) which is arranged in the center of the marrow needle block (12) in a penetrating way and is used for being inserted into the marrow cavity, wherein the marrow needle block (12) is in rotary connection with the fixed block (11);
The tibia osteotomy device comprises a tibia osteotomy component (2), a tibia positioner (21), a mounting rod (22) fixedly connected to one face of the tibia positioner (21) facing the tibia, and a tibia osteotomy guide (23) sleeved on the mounting rod (22);
The tibia varus-valgus angle adjusting assembly (3) comprises a sliding block (31) arranged on one side, far away from the tibia, of the intramedullary pin block (12) and sleeved on the intramedullary pin (13), and an angle plate (32) rotatably installed on the fixed block (11) and the peripheral surface of which is attached to the sliding block (31), wherein the sliding block (31) is attached to the angle plate (32) at different angles to adjust the valgus angle of the tibia osteotomy guide (23);
The tibial caster angle adjusting assembly (4) comprises a caster fixture block (41) which is arranged above the fixed block (11) and is attached to the fixed block (11), and a caster adjusting block (42) which is used for limiting the caster fixture block (41) and is matched with the caster fixture block (41), wherein an angle scale is arranged on the caster adjusting block (42), and the caster fixture block (41) is attached to different positions of the caster adjusting block (42) with the angle scale to adjust the caster angle of the tibial resection guide (23);
the sliding block (31) and the backward tilting fixture block (41) are arranged on the marrow needle (13) in a sliding way, the sliding block (31) and the backward tilting fixture block (41) are adjusted to the inside and outside turning angle and the backward tilting angle after sliding towards the direction far away from the tibia, and the sliding block (31) and the backward tilting fixture block (41) are slid towards the direction close to the tibia until the sliding block and the backward tilting fixture block (41) are respectively attached to fixed positions of an angle plate (32) and a backward tilting adjusting block (42);
The backward tilting fixture block (41) comprises a base (411) which is attached to the fixed block (11), and a positioning rod (412) which is arranged on one surface of the base (411) far away from the tibia, wherein a second positioning block (413) is arranged at one end of the positioning rod (412) far away from the base (411), the backward tilting adjusting block (42) comprises a rotating part (421) and a moving part (422), a plurality of second positioning grooves (423) are uniformly formed in the end surface of the rotating part (421) far away from one end of the moving part (422) according to angles, and the positioning block is clamped in the second positioning groove (423) corresponding to one angle;
The tibia positioner (21) is towards one end of fixed block (11) has been seted up and has been put away a mouthful (211), fixed block (11) are located put away a mouthful (211) in, rotation part (421) are rotated and are installed fixed block (11) are installed on the adjacent one side of angle board (32), remove portion (422) slip setting and be in on tibia positioner (21), installation pole (22) are being kept away from a mouthful (211) one side of orientation of putting away a mouthful.
2. The device for positioning and osteotomy of a multi-functional fine tuning tibial bone marrow cavity of claim 1, wherein a first positioning block (311) is arranged on an end surface of the sliding block (31) close to the angle plate (32), a plurality of first positioning grooves (321) are uniformly formed on the peripheral surface of the angle plate (32) according to angles, and the first positioning block (311) is clamped in the first positioning groove (321) corresponding to one of the angles.
3. The device of claim 2, wherein the angle plate (32) is of symmetrical structure, the angle bisector of the angle plate (32) is a zero line, and the angle ranges on both sides of the zero line are 0-11 degrees.
4. The device for positioning and osteotomy of a multi-functional fine tuning tibial bone marrow cavity of claim 1, wherein the second positioning slot (423) of the rotating part (421) near one end is a zero line, and the angle of the rotating part (421) is in the range of 0-8 °.
5. The device of claim 1, wherein a backward tilting baffle (43) is extended from one end of the base (411) close to the mounting rod (22) toward one surface far away from the tibia, and a backward tilting stopper (44) is arranged right above the backward tilting baffle (43) corresponding to the backward tilting baffle (43) by the fixing block (11).
6. The device of claim 1, wherein a reinforcing plate (312) is provided on an outer wall of an end of the slider (31) away from the tibia.
7. The multi-functional fine tuning tibial bone marrow cavity positioning osteotomy device of claim 1, wherein a handle (131) is disposed at an end of the intramedullary nail (13) distal to the tibia.
8. The multi-functional fine tuning tibial bone marrow cavity positioning osteotomy device of claim 1, wherein a wrench (231) is provided on the tibial osteotomy guide (23) to secure the tibial osteotomy guide (23) to the mounting bar (22).
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| CN202310424751.5A CN116509499B (en) | 2023-04-19 | 2023-04-19 | A multifunctional fine-adjustable tibial medullary cavity positioning osteotomy device |
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| CN202310424751.5A CN116509499B (en) | 2023-04-19 | 2023-04-19 | A multifunctional fine-adjustable tibial medullary cavity positioning osteotomy device |
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| WO2013063418A2 (en) * | 2011-10-27 | 2013-05-02 | Smith & Nephew, Inc. | Devices and methods for performing knee arthroplasty |
| US9204897B2 (en) * | 2011-12-19 | 2015-12-08 | Zimmer, Inc. | Surgical cutting guide |
| WO2020037420A1 (en) * | 2018-08-24 | 2020-02-27 | Laboratoires Bodycad Inc. | Surgical kit for knee osteotomies and corresponding preoperative planning method |
| CN111643151A (en) * | 2020-05-22 | 2020-09-11 | 北京市春立正达医疗器械股份有限公司 | Knee joint intramedullary positioning osteotomy device |
| KR102582290B1 (en) * | 2021-07-21 | 2023-09-25 | 울산대학교 산학협력단 | Apparatus for guide |
| CN113729839B (en) * | 2021-09-13 | 2023-04-07 | 张洪美 | Distal femur extramedullary positioning bone cutter in knee joint replacement operation |
| CN218075123U (en) * | 2022-04-01 | 2022-12-20 | 首都医科大学附属北京朝阳医院 | Osteotomy positioning device and extramedullary locator |
| CN114848083B (en) * | 2022-05-10 | 2024-12-03 | 北京市春立正达医疗器械股份有限公司 | Osteotomy guider |
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| CN107280727A (en) * | 2017-07-15 | 2017-10-24 | 常州奥斯迈医疗器械有限公司 | Shin bone marrow interior orientation device |
| CN110477995A (en) * | 2019-08-08 | 2019-11-22 | 宽岳医疗器材（苏州）有限公司 | Femur osteotomy distal end positioned in alignment device |
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