CN114587546A - External fixing support for unilateral limb deformity - Google Patents
External fixing support for unilateral limb deformity Download PDFInfo
- Publication number
- CN114587546A CN114587546A CN202210356568.1A CN202210356568A CN114587546A CN 114587546 A CN114587546 A CN 114587546A CN 202210356568 A CN202210356568 A CN 202210356568A CN 114587546 A CN114587546 A CN 114587546A
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- CN
- China
- Prior art keywords
- rod
- rotating rod
- fixing
- fixation
- rods
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/60—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like for external osteosynthesis, e.g. distractors, contractors
- A61B17/62—Ring frames, i.e. devices extending around the bones to be positioned
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00367—Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like
- A61B2017/00398—Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like using powered actuators, e.g. stepper motors, solenoids
Abstract
The invention discloses an external fixation bracket for unilateral limb deformity, which comprises a second fixation ring and two first fixation rings: mounting openings are formed in the left side wall and the right side wall of the first fixing ring and the second fixing ring, a first rotating rod is rotatably mounted in the mounting opening in the side wall of the first fixing ring, and two second rotating rods are rotatably mounted in the mounting opening in the side wall of the second fixing ring; the connecting device comprises four groups of connecting components, wherein two ends of each connecting component are fixedly sleeved on a first rotating rod and a second rotating rod respectively; the driving assembly is a plurality of groups, and the plurality of groups of driving assemblies are respectively used for providing driving force for the rotation of the first rotating rod and the second rotating rod. The rotation of the connecting component can be controlled only through the driving component, so that the limb of the patient can be prevented from rotating in the moving process with the connecting component, the effect of fixing the limb of the patient is ensured, and the stability of the fixing work is improved.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to an external fixing bracket for unilateral limb deformity.
Background
The external fixing bracket is applied to clinic, so that limb lengthening and orthopedic technology are in epoch-making leap, along with the continuous deepening of basic research and the expansion of clinical application range, the bracket external fixing technology is widely applied to limb lengthening and function reconstruction, and provides an effective treatment means for bone defects, osteomyelitis, complex limb deformity, limb inequality and other orthopedic difficult and baffling diseases.
Three solid fixed rings change self position and angle for convenience according to different patients 'limbs deformity shape, coupling assembling's both ends all generally can rotate with solid fixed ring to be connected, though can play certain spacing effect to three solid fixed rings when many bone elements penetrate the patient internal, nevertheless because do not design and be used for restricting coupling assembling pivoted mechanism specially, the removal of patient limbs at ordinary times still can lead to coupling assembling to take place to rotate to influence fixed effect.
Disclosure of Invention
The invention aims to solve the defects that the prior external fixation support is not provided with a mechanism specially used for limiting the rotation of a connecting component, and the movement of the limbs of a patient at ordinary times can cause the rotation of the connecting component, so that the fixation effect is influenced.
In order to achieve the purpose, the invention adopts the following technical scheme:
an external fixation support for unilateral limb deformities comprising a second fixation ring and two first fixation rings:
the second fixing rings are positioned between the two first fixing rings, the left side wall and the right side wall of each first fixing ring and the left side wall of each second fixing ring are respectively provided with a mounting opening, a first rotating rod is rotatably mounted in the mounting openings positioned on the side walls of the first fixing rings, and two second rotating rods are rotatably mounted in the mounting openings positioned on the side walls of the second fixing rings;
the connecting assemblies are four groups, and two ends of each connecting assembly are fixedly sleeved on the first rotating rod and the second rotating rod respectively;
the driving assembly is a plurality of groups, and the plurality of groups of driving assemblies are respectively used for providing driving force for the rotation of the first rotating rod and the second rotating rod.
Preferably, including gu the bone subassembly, gu the bone subassembly is the multiunit, the multiunit gu the bone subassembly includes a plurality of fixing bases and many passes respectively a plurality ofly the bone component of wearing of fixing base, it is a plurality of the fixing base is fixed mounting respectively two first solid fixed ring with the solid upper surface of the solid fixed ring of second.
Preferably, drive assembly include the worm wheel and with the worm that the worm wheel meshing is connected, many first bull stick and many two are worn out respectively to the one end of second bull stick first solid fixed ring with the solid fixed ring of second, many the one end of worm respectively with first solid fixed ring with the solid fixed ring's of second lateral wall rotates the installation.
Preferably, one end of the worm is fixedly provided with an adjusting wheel, and the surface of the adjusting wheel is provided with anti-skid grains.
Preferably, coupling assembling includes two connecting seats, hollow pole and inserted bar, two the connecting seat is fixed cup joint respectively first bull stick with on the second bull stick, the one end of hollow pole and one of them connecting seat fixed connection, inserted bar and another connecting seat fixed connection, the inserted bar slides and inserts and establishes in the hollow pole.
Preferably, including the locking subassembly, the locking subassembly is the multiunit, and the multiunit the locking subassembly is used for the locking respectively the inserted bar is in position in the hollow rod, the locking subassembly includes two respectively fixed mounting in the lateral wall about the inserted bar first spring beam and extrusion part, lateral wall all is seted up about the hollow rod and is used for letting two the male locking mouth of first spring beam tip, extrusion part is used for controlling two the shrink of first spring beam.
Preferably, the extrusion part comprises two second spring rods fixedly mounted on the left side wall and the right side wall of the hollow rod respectively, two movable plates and a plurality of pressing rods fixedly mounted on the surfaces of the two movable plates, the two movable plates are fixedly mounted with one ends of the two second spring rods respectively, and the end parts of the plurality of pressing rods correspond to the positions of the plurality of locking openings respectively.
Preferably, the inner wall of the hollow rod is provided with a limit groove, the surface of the inserted link is fixedly provided with a limit rod, and the surface of the limit rod is in sliding contact with the groove wall of the limit groove.
Compared with the prior art, the invention has the beneficial effects that:
1. the rotation of the connecting assembly can be controlled only by the driving assembly, so that the connecting assembly is prevented from being driven to rotate by the limb of the patient in the moving process, the effect of fixing the limb of the patient is further ensured, and the stability of the fixing work is improved;
2. coupling assembling can the holistic length of self of quick adjustment through the cooperation of locking Assembly and extrusion part, makes things convenient for the staff can change the distance between two solid fixed rings of first solid fixed ring and the solid fixed ring of second fast according to the malformed shape of patient's limbs, when having improved the practicality of device, also conveniently accomodates and carries the device, can not occupy too big space.
Drawings
FIG. 1 is a schematic front perspective view of an external fixator for unilateral limb deformity according to the present invention;
FIG. 2 is a schematic side perspective view of an external fixator for unilateral limb deformity according to the present invention;
FIG. 3 is a schematic sectional view of a three-dimensional part at the connecting component of the external fixing support for unilateral limb deformity according to the present invention;
FIG. 4 is an enlarged schematic view of the structure at A in FIG. 1;
FIG. 5 is an enlarged view of the structure at B in FIG. 2;
fig. 6 is an enlarged schematic view of the structure at C in fig. 3.
In the figure: the bone-penetrating device comprises a first fixing ring 1, a second fixing ring 2, an adjusting wheel 3, a mounting opening 4, a first rotating rod 5, a second rotating rod 6, a fixing seat 7, a bone-penetrating element 8, a worm wheel 9, a worm 10, a connecting seat 11, a hollow rod 12, an inserted rod 13, a first spring rod 14, a locking opening 15, a second spring rod 16, a movable plate 17, an abutting rod 18, a limiting groove 19 and a limiting rod 20.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-6, an external fixator for unilateral limb deformities includes a second fixator ring 2 and two first fixator rings 1:
the second fixing ring 2 is positioned between the two first fixing rings 1, the left side wall and the right side wall of each of the first fixing rings 1 and the second fixing rings 2 are respectively provided with a mounting hole 4, a first rotating rod 5 is rotatably mounted in the mounting hole 4 positioned on the side wall of each of the first fixing rings 1, and two second rotating rods 6 are rotatably mounted in the mounting holes 4 positioned on the side walls of the second fixing rings 2;
the bone fixing device comprises multiple groups of bone fixing components, wherein the multiple groups of bone fixing components comprise a plurality of fixing seats 7 and a plurality of bone penetrating elements 8 which penetrate through the fixing seats 7 respectively, and the fixing seats 7 are fixedly arranged on the upper surfaces of two first fixing rings 1 and two second fixing rings 2 respectively;
first need fix with the limbs of correction the patient put into two solid fixed ring 1 of first fixed ring 1 and the solid fixed ring 2 of second from the opening part of two solid fixed ring 1 of second, then adjust the position after, penetrate bone element 8 with many again and fix in penetrating the limbs to it can to make many penetrate the position fixation of bone element 8 in a plurality of fixing bases 7.
The connecting assembly comprises four groups, two ends of the connecting assembly are respectively fixedly sleeved on a first rotating rod 5 and a second rotating rod 6, the connecting assembly comprises two connecting seats 11, a hollow rod 12 and an inserting rod 13, the two connecting seats 11 are respectively fixedly sleeved on the first rotating rod 5 and the second rotating rod 6, one end of the hollow rod 12 is fixedly connected with one connecting seat 11, the inserting rod 13 is fixedly connected with the other connecting seat 11, the inserting rod 13 is slidably inserted into the hollow rod 12, a limiting groove 19 is formed in the inner wall of the hollow rod 12, a limiting rod 20 is fixedly arranged on the surface of the inserting rod 13, and the surface of the limiting rod 20 is in sliding contact with the groove wall of the limiting groove 19;
the inserted link 13 can slide in the hollow rod 12, so that the whole length of the connecting assembly can be changed, the limiting rod 20 can only move in the limiting groove 19, the sliding track of the inserted link 13 in the hollow rod 12 can be limited, and the inserted link 13 is prevented from unintentionally moving in the hollow rod 12.
The locking device comprises a plurality of groups of locking assemblies, wherein the plurality of groups of locking assemblies are respectively used for locking the position of an inserted rod 13 in a hollow rod 12, each locking assembly comprises two first spring rods 14 and an extrusion part, the two first spring rods 14 are respectively and fixedly arranged on the left side wall and the right side wall of the inserted rod 13, the left side wall and the right side wall of the hollow rod 12 are respectively provided with a locking port 15 for inserting the end parts of the two first spring rods 14, and the extrusion part is used for controlling the two first spring rods 14 to contract;
the extrusion part comprises two second spring rods 16 which are fixedly arranged on the left side wall and the right side wall of the hollow rod 12 respectively, two movable plates 17 and a plurality of pressing rods 18 which are fixedly arranged on the surfaces of the two movable plates 17, the two movable plates 17 are fixedly arranged with one ends of the two second spring rods 16 respectively, and the end parts of the plurality of pressing rods 18 correspond to the positions of the plurality of locking holes 15 respectively;
when the ends of the two first spring rods 14 located on the left and right side walls of the insertion rod 13 respectively extend into the two locking openings 15 located on the same horizontal line, the position of the insertion rod 13 in the hollow rod 12 is fixed, the insertion rod 13 cannot slide in the hollow rod 12, and when the total length of the insertion rod 13 and the hollow rod 12 needs to be adjusted, the insertion rod 13 and the hollow rod 12 are moved in the direction of approaching each other by pressing the two moving plates 17, during the moving process, the multiple pressing rods 18 fixedly installed on the surfaces of the two moving plates 17 can enter the multiple locking openings 15 corresponding to the end positions of the two pressing rods 18, wherein the two pressing rods 18 can press the ends of the first spring rods 14 originally located in the two locking openings 15, and under the pressing force, the two first spring rods 14 can contract until the ends of the two first spring rods 14 respectively move out of the two locking openings 15, at this time, the insertion rod 13 can be moved in the hollow rod 12 again, in the moving process, the end portions of the two first spring rods 14 are in a contracted state all the time under the action of the inner wall of the hollow rod 12 and the plurality of pressing rods 18 until the end portions of the two first spring rods 14 move to a proper position, the two moving plates 17 are loosened, under the elastic potential energy of the two second spring rods 16, the two moving plates 17 can be reset rapidly, the plurality of pressing rods 18 can be moved out of the plurality of locking openings 15, at this time, the pressing force applied to the end portions of the two first spring rods 14 by the pressing rods 18 disappears, the end portions of the two first spring rods 14 can be reset rapidly under the action of the elastic potential energy of the end portions of the two first spring rods 14 and extend into the two locking openings 15 corresponding to the end portions of the two first spring rods to form clamping connection, the total length of the insertion rod 13 and the hollow rod 12 can be fixed again, and a worker can change the distance between the two first fixing rings 1 and the second fixing rings 2 rapidly according to the shape deformity of the limb of the patient From, when having improved the practicality of device, also conveniently accomodate and carry the device, can not occupy too big space.
The anti-skid device comprises a plurality of groups of driving assemblies, wherein the plurality of groups of driving assemblies are respectively used for providing rotating driving force for a plurality of first rotating rods 5 and a plurality of second rotating rods 6, each driving assembly comprises a worm wheel 9 and a worm 10 meshed with the worm wheel 9, one ends of the plurality of first rotating rods 5 and one end of the plurality of second rotating rods 6 respectively penetrate through two first fixing rings 1 and two second fixing rings 2, one ends of the plurality of worms 10 are respectively rotatably mounted with the side walls of the first fixing rings 1 and the second fixing rings 2, one ends of the worms 10 are fixedly provided with adjusting wheels 3, and the surfaces of the adjusting wheels 3 are provided with anti-skid grains;
the adjusting wheel 3 is rotated to control the worm 10 to rotate, the anti-skid lines can increase the friction force between the palm of a worker and the contact surface of the adjusting wheel 3 to prevent the worker from falling off the hand, when the worm 10 rotates, the worm wheel 9 which is meshed with the worm 10 and fixedly sleeved on the first rotating rod 5 or the second rotating rod 6 drives the first rotating rod 5 or the second rotating rod 6 to rotate at the moment, because the two ends of the connecting assembly are respectively fixedly sleeved with the first rotating rod 5 and the second rotating rod 6, the connecting assembly rotates together at the moment, the angle and the position between the first fixing ring 1 and the second fixing ring 2 can be changed at the moment, namely only when the worm 10 rotates, the connecting assembly can rotate at the moment, the connecting assembly is prevented from rotating when the limbs of a patient move, and the effect of fixing the limbs of the patient by the plurality of bone penetrating elements 8 is further influenced, the stability of the fixing work is improved.
In the invention, the connecting assembly is fixedly connected with the first fixing ring 1 and the second fixing ring 2, and the plurality of groups of connecting assemblies can be controlled to rotate only through the plurality of groups of driving assemblies, so that the angle and the position of the first fixing ring 1 and the second fixing ring 2 can be adjusted.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. An external fixation support for unilateral limb deformities, comprising a second fixation ring (2) and two first fixation rings (1), characterized in that:
the second fixing rings (2) are positioned between the two first fixing rings (1), mounting ports (4) are formed in the left side wall and the right side wall of each of the first fixing rings (1) and the second fixing rings (2), first rotating rods (5) are rotatably mounted in the mounting ports (4) in the side walls of the first fixing rings (1), and two second rotating rods (6) are rotatably mounted in the mounting ports (4) in the side walls of the second fixing rings (2);
the connecting components are four groups, and two ends of each connecting component are fixedly sleeved on the first rotating rod (5) and the second rotating rod (6) respectively;
the driving mechanism comprises a plurality of groups of driving components, wherein the plurality of groups of driving components are respectively used for providing driving force for the rotation of the first rotating rod (5) and the second rotating rod (6).
2. The external fixation support for unilateral limb deformity according to claim 1, comprising a plurality of sets of bone fixation assemblies, wherein the plurality of sets of bone fixation assemblies comprise a plurality of fixing seats (7) and a plurality of bone penetrating elements (8) respectively penetrating through the plurality of fixing seats (7), and the plurality of fixing seats (7) are respectively fixedly installed on the upper surfaces of the two first fixing rings (1) and the second fixing rings (2).
3. The external fixation support for unilateral limb deformity according to claim 1, wherein the driving assembly comprises a worm wheel (9) and a worm (10) engaged with the worm wheel (9), wherein one end of the first rotating rod (5) and one end of the second rotating rod (6) respectively penetrate through the first fixation ring (1) and the second fixation ring (2), and one end of the worm (10) is respectively rotatably mounted with the side walls of the first fixation ring (1) and the second fixation ring (2).
4. The external fixation frame for unilateral limb deformity according to claim 3, wherein the worm (10) is fixedly provided with an adjusting wheel (3) at one end, and the surface of the adjusting wheel (3) is provided with anti-skid lines.
5. The external fixation bracket for unilateral limb deformity according to claim 1, wherein the connecting assembly comprises two connecting seats (11), a hollow rod (12) and an insertion rod (13), the two connecting seats (11) are fixedly sleeved on the first rotating rod (5) and the second rotating rod (6) respectively, one end of the hollow rod (12) is fixedly connected with one of the connecting seats (11), the insertion rod (13) is fixedly connected with the other connecting seat (11), and the insertion rod (13) is slidably inserted in the hollow rod (12).
6. The external fixator for unilateral limb deformity according to claim 5, comprising a plurality of sets of locking assemblies, wherein the plurality of sets of locking assemblies are respectively used for locking the position of the inserted bar (13) in the hollow bar (12), each locking assembly comprises two first spring bars (14) fixedly installed on the left and right side walls of the inserted bar (13) and a pressing component, the left and right side walls of the hollow bar (12) are respectively provided with a locking port (15) for inserting the ends of the two first spring bars (14), and the pressing component is used for controlling the contraction of the two first spring bars (14).
7. The external fixator for unilateral limb deformity according to claim 6, wherein the pressing member comprises two second spring rods (16) fixedly mounted on the left and right side walls of the hollow rod (12), respectively, two moving plates (17), and a plurality of pressing rods (18) fixedly mounted on the surfaces of the two moving plates (17), wherein the two moving plates (17) are fixedly mounted with one ends of the two second spring rods (16), respectively, and the ends of the plurality of pressing rods (18) correspond to the positions of the plurality of locking openings (15), respectively.
8. The external fixation bracket for unilateral limb deformity according to claim 6, wherein the hollow rod (12) has a limiting groove (19) formed on the inner wall thereof, the insertion rod (13) has a limiting rod (20) fixedly mounted on the surface thereof, and the surface of the limiting rod (20) is in sliding contact with the groove wall of the limiting groove (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210356568.1A CN114587546A (en) | 2022-04-06 | 2022-04-06 | External fixing support for unilateral limb deformity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210356568.1A CN114587546A (en) | 2022-04-06 | 2022-04-06 | External fixing support for unilateral limb deformity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114587546A true CN114587546A (en) | 2022-06-07 |
Family
ID=81812879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210356568.1A Withdrawn CN114587546A (en) | 2022-04-06 | 2022-04-06 | External fixing support for unilateral limb deformity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114587546A (en) |
-
2022
- 2022-04-06 CN CN202210356568.1A patent/CN114587546A/en not_active Withdrawn
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20220607 |