CN214712734U - External fixing bracket for tibia correction - Google Patents
External fixing bracket for tibia correction Download PDFInfo
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- CN214712734U CN214712734U CN202022617023.0U CN202022617023U CN214712734U CN 214712734 U CN214712734 U CN 214712734U CN 202022617023 U CN202022617023 U CN 202022617023U CN 214712734 U CN214712734 U CN 214712734U
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- angle adjusting
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- kirschner wire
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Abstract
The utility model discloses a tibia orthopedic external fixation support, which mainly comprises a lower end fixing mechanism, an upper angle adjusting mechanism, a lower angle adjusting mechanism and a left angle adjusting mechanism and a right angle adjusting mechanism. The left and right angle adjusting mechanism is connected to the up and down angle adjusting mechanism in an adjustable rotating way, and the left and right angle adjusting mechanism is provided with a crown shaft as a rotating shaft. The up-down angle adjusting mechanism can realize up-down reciprocating motion, and the left-right angle adjusting mechanism can realize rotation on the coronal plane. The tibia orthopedic external fixation support achieves dynamic distraction by arranging the upper and lower angle adjusting mechanisms and the left and right angle adjusting mechanisms, and can accurately achieve the angle and the position to be distracted. The upper and lower angles and the left and right angles can be adjusted, so that periosteum can be pulled to be spread along with bone substances by a method of one-degree daily spreading, and the osteotomy can be rapidly healed.
Description
Technical Field
The utility model relates to a tibial orthopedic apparatus technical field, in particular to a tibial orthopedic external fixation support.
Background
The tibial orthopaedic surgery is an orthopaedic surgery for tibial deformity, arthritic tibia and valgus and varus of lower limb bones. At present, treatment schemes in the market are mainly divided into two types, one type is to cut bones and shape, and then fix the bones which are shaped by using an implant steel plate and screws, and the operation mode requires rich experience of doctors, has high learning difficulty, needs implants during operation and has high operation cost for patients. The second and the way of replacing the joint, this kind of operation mode requires the doctor to have more abundant operation experience, and the study degree of difficulty is bigger, and the operation time is longer, and the cost of replacing the joint is higher than steel sheet and screw, and patient's recovery time is longer.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an orthopedic external fixation of shin bone support, the accurate location of being convenient for and progressively strut the shin bone.
The utility model adopts the technical proposal that: an orthopedic tibial external fixation brace, comprising:
the lower end fixing mechanism comprises at least one first Kirschner wire and a supporting rod, and the first Kirschner wire is fixedly connected to one end of the supporting rod;
the upper and lower angle adjusting mechanism comprises a fixed seat and an upper and lower angle adjusting device, the upper and lower angle adjusting device is adjustably and slidably connected to the fixed seat, and the fixed seat is fixedly connected to the other end of the supporting rod;
the left and right angle adjusting mechanism comprises at least two second kirschner wires, an arc-shaped rod and a left and right angle adjusting device, the arc-shaped rod is fixedly connected with one side of the left and right angle adjusting device, one second kirschner wire is fixedly connected to the left and right angle adjusting device, and the other second kirschner wires are fixedly connected to the arc-shaped rod; and
the telescopic link, the both ends of telescopic link are provided with universal structure end, one end universal structure end fixed connection be in on the arc pole, the other end universal structure end fixed connection be in on the bracing piece, control angle adjusting device and pass through adjustable the rotation of telescopic link is connected on the angle adjusting device from top to bottom, control angle adjusting device and set up the crown shaft and be the axis of rotation.
Has the advantages that: the tibia orthopedic external fixation support achieves dynamic distraction by arranging the upper and lower angle adjusting mechanisms and the left and right angle adjusting mechanisms, and can accurately achieve the angle and the position to be distracted. The upper and lower angles and the left and right angles can be adjusted, so that periosteum can be pulled to be spread along with bone substances by a method of one-degree daily spreading, and the osteotomy can be rapidly healed.
Further, orthopedic external fixation support of shin bone still includes a plurality of latch segments and first threaded fastener, be provided with bracing piece hole, kirschner wire hole and locking hole on the latch segment, first kirschner wire or second kirschner wire set up the kirschner wire is downthehole, bracing piece or arc pole set up the bracing piece is downthehole, first threaded fastener passes locking hole fastens, first kirschner wire passes through latch segment fixed connection on the bracing piece, second kirschner wire passes through latch segment fixed connection on the arc pole.
Further, angle adjusting device includes rack, gear, button and second threaded fastener from top to bottom, the fixing base is provided with the guide slot, rack sliding connection is in the guide slot, the gear with the rack toothing is connected, the button has the locking the first state of rack and loosens the second state of rack, the button passes through second threaded fastener fixed connection be in on the fixing base.
Further, the rack is set to be an arc rack or a straight rack, when the rack is set to be the arc rack, the upper and lower angle adjusting device can rotate in an adjustable mode by taking the sagittal axis as a rotating shaft, and the sagittal axis takes the tip end of the second Kirschner wire as a base point.
Further, the left-right angle adjusting device comprises a supporting rod seat and a rotating seat, the supporting rod seat is fixedly connected to the rotating seat, a supporting rod hole is formed in the supporting rod seat, a mounting groove is formed in the rotating seat, one end of the rack is arranged in the mounting groove, and the rack is rotatably connected with the rotating seat through the second Kirschner wire.
Further, the rotating seat and the rack are arranged to be of an integrated structure, and the rack is rotatably connected with the support rod seat through the second Kirschner wire.
Further, the telescopic link includes external screw thread pole, internal thread pipe and lock nut, the one end of internal thread pipe and external screw thread pole sets up respectively in the universal structure end, the other end setting of external screw thread pole is in the other end of internal thread pipe, lock nut sets up the junction department of internal thread pipe and external screw thread pole is used for the locking the telescopic link.
Further, lower extreme fixed establishment still includes the ring support, ring support fixed connection be in on the bracing piece, first kirschner wire fixed connection be in on the ring support, be provided with three first kirschner wire on the ring support, it is three contained angle between the first kirschner wire is 120.
Further, the upper and lower angle adjusting device is a screw rod, a threaded hole is formed in the fixing seat, and the screw rod drives the left and right angle adjusting mechanism to lift.
Further, the lower end fixing mechanism and the upper and lower angle adjusting mechanism are arranged to be of an integrated structure, and the lower end of the fixing seat is arranged to be a supporting rod.
Drawings
The invention will be further described with reference to the following figures and examples:
fig. 1 is a schematic structural diagram of a first embodiment of the present invention;
fig. 2 is an exploded view of a first embodiment of the present invention;
fig. 3 is a schematic structural diagram of a second embodiment of the present invention;
fig. 4 is a schematic structural diagram of a third embodiment of the present invention;
fig. 5 is a schematic structural diagram of a fourth embodiment of the present invention;
fig. 6 is a schematic structural diagram of a fifth embodiment of the present invention;
fig. 7 is a schematic structural diagram of a sixth embodiment of the present invention;
fig. 8 is a schematic structural view of the telescopic rod of the present invention.
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
Referring to fig. 1 to 8, the embodiment of the present invention provides an orthopedic external tibial fixation frame, which mainly comprises a lower end fixing mechanism 1, an upper and lower angle adjusting mechanism 2, a left and right angle adjusting mechanism 3 and a telescopic rod 5, wherein the lower end fixing mechanism 1 comprises at least one first kirschner wire 11 and a support rod 12, the first kirschner wire 11 is fixedly connected to one end of the support rod 12, the tip of the first kirschner wire 11 is provided with an external thread, and the external tibial fixation frame is inserted into the bottom end of a tibia to be fixed. The upper and lower angle adjusting mechanism 2 comprises a fixed seat 21 and an upper and lower angle adjusting device, the upper and lower angle adjusting device is slidably connected to the fixed seat 21 in an adjustable manner, and the fixed seat 21 is fixedly connected to the other end of the supporting rod 12. Angle adjusting mechanism 3 should control, including two at least second kirschner wires 35, angle adjusting device about the arc pole 34 with, angle adjusting device's one side should be controlled to this arc pole 34 fixed connection, angle adjusting device should be controlled to this second kirschner wire 35 fixed connection on this, remaining this second kirschner wire 35 fixed connection is on arc pole 34, second kirschner wire 35 of fixed connection on arc pole 34 is located angle adjusting device's same one side about should, the pointed end of this second kirschner wire 35 is provided with the external screw thread, fix in inserting the shin bone top. The both ends of this telescopic link 5 are provided with universal structure end 51, and the universal structure end 51 fixed connection of one end is on this arc 34, and the universal structure end 51 fixed connection of the other end is on this bracing piece 12, and angle adjusting device should be controlled and rotated through this telescopic link 5 adjustable and connect on this angle adjusting device from top to bottom, and angle adjusting device should be controlled and set up the crown shaft and be the axis of rotation. The up-down angle adjusting mechanism 2 can realize the up-down reciprocating motion of the second kirschner wire 35, and the left-right angle adjusting mechanism 3 can realize the rotation of the second kirschner wire 35 on the coronal plane. The tibia orthopedic external fixation support achieves dynamic distraction by arranging the upper and lower angle adjusting mechanisms 2 and the left and right angle adjusting mechanisms 3, and can accurately reach the angle and the position to be distracted. The upper and lower angles and the left and right angles can be adjusted, so that periosteum can be pulled to be spread along with bone substances by a method of one-degree daily spreading, and the osteotomy can be rapidly healed.
Preferably, the external tibial orthopedic fixing bracket further comprises a plurality of locking blocks 4 and a first threaded fastener, wherein the locking blocks 4 are provided with a supporting rod hole, a kirschner wire hole and a locking hole, and the first kirschner wire 11 or the second kirschner wire 35 is installed in the kirschner wire hole. The support rod hole is arranged to be a hole matched with the shape of the support rod 12 or the arc-shaped rod 34, the support rod 12 or the arc-shaped rod 34 is installed in the support rod hole, and the first threaded fastener penetrates through the locking hole to be fastened. The first kirschner wire 11 is fixedly connected to the support rod 12 through the locking block 4, and the second kirschner wire 35 is fixedly connected to the arc-shaped rod 34 through the locking block 4. The central lines of the supporting rod hole, the Kirschner wire hole and the locking hole are mutually vertical. The supporting rod hole and the Kirschner wire hole are internally provided with threads, so that friction force is increased, the locking hole is cut into three sections by the gaps of the supporting rod hole and the Kirschner wire hole, one section of the middle part is provided with threads, the other two sections are provided with through holes, the hole diameter of each through hole is larger than the outer diameter of each thread, and the supporting rod 12 or the arc-shaped rod 34 and the first Kirschner wire 11 or the second Kirschner wire 35 are locked and fixed through the first thread fastener.
Preferably, the up-down angle adjusting device comprises a rack, a gear 23, a button 22 and a second threaded fastener 24, the fixed seat 21 is provided with a guide groove, the rack is slidably connected in the guide groove, the gear 23 is engaged with the rack, and the gear 23 can drive the rack to reciprocate up and down. The button 22 includes an end top tooth, a torsion spring 222, and a pressing panel 221, the pressing panel 221 being provided with a fixed end and an outer tip. The button 22 has a first state of locking the rack and a second state of releasing the rack, and in the first state, the top teeth of the end part are inserted into the bottom of the rack under the action of the torsion spring 222 to prevent the rack from sliding downwards, so that the rack is fixed without a gap of moving upwards and downwards. When the outer tip is pressed, the torsion spring 222 compresses, the tip teeth move away, the rack can slide freely, and the rack is in the second state. When the outer tip stops being pressed, the torsion spring 222 rebounds, and the tip tooth of the tip re-inserts into the bottom of the rack, returning to the first state. The button 22 is fixedly connected to the fixed seat 21 by the second threaded fastener 24. When the button 22 is in the first state, the rack is in the locking state, the rack is prevented from being accidentally touched to change the correction angle, when the rack needs to be adjusted, the button 22 is pressed, the button 22 is in the second state, and then the position of the rack is adjusted through the gear 23. The button 22 is a first safety lock of the up-down angle adjusting mechanism 2. The second bolt fastening member fixes the button 22 to the holder 21, and the button 22 maintains the first state when the second bolt fastening member is tightened. The second bolt fastener is a second safety lock of the up-down angle adjusting mechanism 2. The second bolt fastener can lock the button 22 and secure the rack against sliding up and down. When the rack needs to be adjusted, the second bolt fastener needs to be unscrewed, and then the button 22 needs to be pressed to adjust the rack.
With continued reference to fig. 1 to 3, preferably, the rack is configured as an arc-shaped rack 251 or a straight rack 252, and when the rack is configured as the arc-shaped rack 251, the vertical angle adjusting device can be rotated and adjusted around a sagittal axis as a rotation axis, and the sagittal axis uses the tip of the second kirschner wire 35 as a base point to serve as a first reference for positioning in surgical fluoroscopy. The inclination angle of the second kirschner wire 35 is changed through the rotation of the rack, the tibial orthopedic external fixing bracket can be unfolded once a day by sliding the rack every day, and the periosteum is pulled to be unfolded along with the bone, so that the quick healing of the osteotomy is facilitated. The rack can be arranged in different profiles or shapes according to requirements and is not limited to be arc-shaped or linear. The tibial plate is provided with a rotating center for adjusting the front and back inclination angles, and the front and back inclination angles of the tibial plate can be adjusted according to requirements. After the adjustment is finished, the locking can be used as an external fixing bracket.
Preferably, the left-right angle adjusting device includes a support rod seat 32 and a rotary seat 31, the support rod seat 32 is fixedly connected to the rotary seat 31, the support rod hole is opened on the support rod seat 32, an installation groove is opened on the rotary seat 31, one end of the rack is arranged in the installation groove, and the rack is rotatably connected to the rotary seat 31 through the second kirschner wire 35. Specifically, the width of the mounting groove is greater than that of the rack, so that a certain space exists between the rotary seat 31 and the rack, and rotation is realized. A fixing screw 33 is arranged between the rotary base 31 and the second k-wire 35, and the fixing screw 33 locks the second k-wire 35 on the rotary base 31.
Preferably, this roating seat 31 sets up the integral type structure with this rack, and this rack and support rod seat 32 rotate through this second kirschner wire 35 and be connected, have simplified overall structure, and when angle adjusting device about adjusting, this support rod seat 32 drives curved rod 34 and rotates, realizes controlling the angle modulation and the conversion of controlling the leg selection.
Preferably, the telescopic rod 5 comprises an external threaded rod 52, an internal threaded tube 54 and a locking nut 53, one end of the internal threaded tube 54 and one end of the external threaded rod 52 are respectively arranged in the universal structure head 51, the other end of the external threaded rod 52 is arranged in the other end of the internal threaded tube 54, and the locking nut 53 is arranged at the connecting port of the internal threaded tube 54 and the external threaded rod 52 and is used for locking the telescopic rod 5. Specifically, the internally threaded tube 54 and the externally threaded rod 52 are provided at one end with a universal block that is rotatably connected to the gimbal structure head 51. When the telescopic rod 5 is extended, the telescopic rod 5 can rotate at the universal structure end 51, so that the left-right angle adjusting mechanism 3 rotates. The telescopic rod 5 can also be realized through a rack structure, a hydraulic rod, a pneumatic rod and the like.
Preferably, the lower end fixing mechanism 1 further includes a circular ring support 13, the circular ring support 13 is fixedly connected to the support rod 12, the first k-wire 11 is fixedly connected to the circular ring support 13, three first k-wires 11 are arranged on the circular ring support 13, and an included angle between the three first k-wires 11 is 120 °. This ring support 13 can encircle the shank, and this first kirschner wire 11 sets up on this ring support 13, can change the position on ring support 13 of first kirschner wire 11 through the demand to realize accurate positioning. The first kirschner wires 11 are inserted from three directions, so that the stability of the external tibial orthopedic fixing bracket is enhanced, and the reasonable stress on the bottom is ensured.
With reference to fig. 5, the vertical angle adjusting device is preferably a screw 253, a threaded hole is formed in the fixed base 21, and the screw 253 drives the left and right angle adjusting mechanism 3 to move up and down, so as to adjust the angle of the upper tibial knee joint contact surface.
Specifically, the rack or screw 253 can be driven manually, electrically, or hydraulically.
With continued reference to fig. 7, preferably, the lower end fixing mechanism 1 and the up-down angle adjusting mechanism 2 are provided as an integrated structure, and the lower end of the fixing base 21 is provided as a support bar 12. The integral structure is a simplified structure of the tibial orthopedic external fixing support, the whole volume of the tibial orthopedic external fixing support is reduced, and the tibial orthopedic external fixing support is lighter and more convenient to use.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (10)
1. An orthopedic tibial external fixation brace, comprising:
the lower end fixing mechanism comprises at least one first Kirschner wire and a supporting rod, and the first Kirschner wire is fixedly connected to one end of the supporting rod;
the upper and lower angle adjusting mechanism comprises a fixed seat and an upper and lower angle adjusting device, the upper and lower angle adjusting device is adjustably and slidably connected to the fixed seat, and the fixed seat is fixedly connected to the other end of the supporting rod;
the left and right angle adjusting mechanism comprises at least two second kirschner wires, an arc-shaped rod and a left and right angle adjusting device, the arc-shaped rod is fixedly connected with one side of the left and right angle adjusting device, one second kirschner wire is fixedly connected to the left and right angle adjusting device, and the other second kirschner wires are fixedly connected to the arc-shaped rod; and
the telescopic link, the both ends of telescopic link are provided with universal structure end, one end universal structure end fixed connection be in on the arc pole, the other end universal structure end fixed connection be in on the bracing piece, control angle adjusting device and pass through adjustable the rotation of telescopic link is connected on the angle adjusting device from top to bottom, control angle adjusting device and set up the crown shaft and be the axis of rotation.
2. The tibial orthopaedic external fixation brace of claim 1, wherein: orthopedic external fixation support of shin bone still includes a plurality of latch segments and first threaded fastener, be provided with bracing piece hole, kirschner wire hole and locking hole on the latch segment, first kirschner wire or second kirschner wire set up in the kirschner wire hole, bracing piece or arc pole set up the bracing piece is downthehole, first threaded fastener passes the locking hole fastens, first kirschner wire passes through latch segment fixed connection be in on the bracing piece, second kirschner wire passes through latch segment fixed connection be in on the arc pole.
3. The tibial orthopaedic external fixation brace of claim 2, wherein: the upper and lower angle adjusting device comprises a rack, a gear, a button and a second threaded fastener, the fixing seat is provided with a guide groove, the rack is connected in the guide groove in a sliding mode, the gear is connected with the rack in a meshed mode, the button is provided with a locking function, the first state of the rack is locked, the second state of the rack is loosened, and the button is fixedly connected to the fixing seat through the second threaded fastener.
4. The tibial orthopaedic external fixation brace of claim 3, wherein: the rack sets up to arc rack or spur rack, when the rack sets up to the arc rack, angle adjusting device uses the sagittal axis as the adjustable rotation of axis of rotation, the sagittal axis with the pointed end of second kirschner wire is the basic point.
5. The tibial orthopaedic external fixation brace of claim 3, wherein: the left and right angle adjusting device comprises a supporting rod seat and a rotating seat, the supporting rod seat is fixedly connected to the rotating seat, a supporting rod hole is formed in the supporting rod seat, a mounting groove is formed in the rotating seat, one end of a rack is arranged in the mounting groove, and the rack is rotatably connected with the rotating seat through a second Kirschner wire.
6. The tibial orthopaedic external fixation brace of claim 5, wherein: the rotary seat and the rack are arranged into an integrated structure, and the rack is rotatably connected with the support rod seat through the second Kirschner wire.
7. The tibial orthopaedic external fixation brace of claim 1, wherein: the telescopic link includes external screw thread pole, internal thread pipe and lock nut, the one end of internal thread pipe and external screw thread pole sets up respectively in the universal structure end, the other end setting of external screw thread pole is in the other end of internal thread pipe, lock nut sets up the junction department of internal thread pipe and external screw thread pole is used for the locking the telescopic link.
8. The tibial orthopaedic external fixation brace of claim 1, wherein: lower extreme fixed establishment still includes the ring support, ring support fixed connection be in on the bracing piece, first kirschner wire fixed connection be in on the ring support, be provided with three first kirschner wire on the ring support, it is three contained angle between the first kirschner wire is 120.
9. The tibial orthopaedic external fixation brace of claim 1, wherein: the upper and lower angle adjusting device is set to be a screw rod, a threaded hole is formed in the fixing seat, and the screw rod drives the left and right angle adjusting mechanism to lift.
10. The tibial orthopaedic external fixation brace of claim 1, wherein: the lower end fixing mechanism and the upper and lower angle adjusting mechanisms are arranged into an integrated structure, and the lower end of the fixing seat is arranged into a supporting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022617023.0U CN214712734U (en) | 2020-11-12 | 2020-11-12 | External fixing bracket for tibia correction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022617023.0U CN214712734U (en) | 2020-11-12 | 2020-11-12 | External fixing bracket for tibia correction |
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| Publication Number | Publication Date |
|---|---|
| CN214712734U true CN214712734U (en) | 2021-11-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022617023.0U Active CN214712734U (en) | 2020-11-12 | 2020-11-12 | External fixing bracket for tibia correction |
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| CN (1) | CN214712734U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112370131A (en) * | 2020-11-12 | 2021-02-19 | 广州民鋆医疗科技发展有限公司 | External fixing bracket for tibia correction |
| CN113974805A (en) * | 2021-12-09 | 2022-01-28 | 河北医科大学第三医院 | External fixator for tibiofibula |
-
2020
- 2020-11-12 CN CN202022617023.0U patent/CN214712734U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112370131A (en) * | 2020-11-12 | 2021-02-19 | 广州民鋆医疗科技发展有限公司 | External fixing bracket for tibia correction |
| CN112370131B (en) * | 2020-11-12 | 2024-07-02 | 广州民鋆医疗科技发展有限公司 | Tibia orthopedic external fixing support |
| CN113974805A (en) * | 2021-12-09 | 2022-01-28 | 河北医科大学第三医院 | External fixator for tibiofibula |
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