CN113974804A - Orthopedic external fixator - Google Patents

Orthopedic external fixator Download PDF

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Publication number
CN113974804A
CN113974804A CN202111466769.9A CN202111466769A CN113974804A CN 113974804 A CN113974804 A CN 113974804A CN 202111466769 A CN202111466769 A CN 202111466769A CN 113974804 A CN113974804 A CN 113974804A
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assembly
tension
component
bone
conduction
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CN202111466769.9A
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Chinese (zh)
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贾光辉
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Individual
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Priority to CN202111466769.9A priority Critical patent/CN113974804A/en
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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
    • A61B17/66—Alignment, compression or distraction mechanisms
    • 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
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • 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
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/683—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin comprising bone transfixation elements, e.g. bolt with a distal cooperating element such as a nut
    • 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
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/84—Fasteners therefor or fasteners being internal fixation devices
    • 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
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B2017/681—Alignment, compression, or distraction mechanisms

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  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Neurology (AREA)
  • Surgical Instruments (AREA)

Abstract

The invention provides an orthopedic external fixator for orthopedics department, which relates to the technical field of medical instruments and comprises a conduction assembly, a tension assembly and a pressing assembly, wherein the conduction assembly, the tension assembly and the pressing assembly are arranged on the outer side of a deformed bone, one end of the pressing assembly abuts against the vertex of the deformed bone, the other end of the pressing assembly abuts against or is connected with the conduction assembly, the tension assembly is fixed at the low point of the deformed bone, the tension assembly and the conduction assembly are assembled in a guiding and sliding mode so that the conduction assembly can be far away from or close to the deformed bone along the length direction of the tension assembly, a positioning adjusting assembly capable of rotating and moving along the length direction of the tension assembly so as to extrude the conduction assembly is arranged on the tension assembly, and the pressing assembly and the positioning adjusting assembly are respectively arranged on two sides of the conduction assembly. When the external fixator is used, a user applies pressure to a high point of the malformed bone and applies tension to a low point of the malformed bone by screwing the positioning adjusting component. The device has good orthopedic effect.

Description

Orthopedic external fixator
Technical Field
The invention relates to the technical field of medical instruments, in particular to an orthopedic external fixator for orthopedics.
Background
At present, the orthopedic external fixator is complex in assembly, the orthopedic external fixator needs osteotomy, the wound is large, the wound is easy to infect and necrotize, the osteotomy end risks delayed healing, non-healing and the like, and nerve and blood vessel combined injury is easy to occur after osteotomy and orthopedic treatment for some patients with serious deformity.
Disclosure of Invention
The invention aims to provide an orthopedic external fixator for orthopedics, which solves the technical problems of large deformity bone correction wound and high risk in the prior art. The technical effects (simple structure, low cost and convenient use) generated by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.
The invention provides an orthopedic external fixator for orthopedics department, which comprises a conduction assembly arranged on the outer side of a deformed bone, a tension assembly for applying tension to the deformed bone and a pressing assembly for applying pressure to the deformed bone, wherein one end of the pressing assembly is abutted against the vertex of the deformed bone, the other end of the pressing assembly is abutted against or connected with the conduction assembly, the tension assembly is fixed at the low point of the deformed bone and is in guiding sliding assembly with the conduction assembly so that the conduction assembly can be far away from or close to the deformed bone along the length direction of the tension assembly, a positioning adjusting assembly capable of rotating along the length direction of the tension assembly so as to press the conduction assembly is arranged on the tension assembly, and the pressing assembly and the positioning adjusting assembly are respectively arranged on two sides of the conduction assembly.
Preferably, the subassembly of exerting pressure includes pressure pole and base, and the one end of pressure pole offsets or links to each other with the conduction subassembly, and the other end of pressure pole links to each other with the base, and the bottom surface of base is provided with anti-skidding groove.
Preferably, the tension assembly is provided with at least two sets, the at least two sets of tension assemblies are respectively arranged at two sides of the pressure applying assembly, and any one set of tension assembly is in guide sliding assembly with the conducting assembly.
Preferably, the conducting assembly comprises a main member in a plate shape or a rod shape, a slideway extending along the length direction of the main member is formed in the main member, the tension assembly penetrates through the slideway in a matching mode and can move along the length direction and the height direction of the slideway, or pore channels matched with the tension assembly are formed in the main member at intervals, the tension assembly penetrates through the pore channels in a matching mode and can move along the axial direction of the pore channels, and therefore the relative position of the tension assembly and the main member is adjusted.
Preferably, the tension assembly comprises a tension member, the tension member is a screw rod, or the tension member comprises a light section and thread sections located at two ends of the light section, the light section and the thread sections are integrally formed, and the positioning and adjusting assembly is in threaded connection with the tension member.
Preferably, the middle part of conduction subassembly is seted up the spacing groove that the tip that holds the pressure pole penetrated, and the slide sets up in the spacing groove both sides, and the pressure pole inserts the spacing inslot so that pressure pole and conduction subassembly plug are connected or the butt or through bolt adjustable connection.
Preferably, a clamping hoop is fixed at one end of the pressure rod, and the pressure rod is fixed on the conduction assembly through the clamping hoop so that a user can adjust the position relation between the base and the malformed bone by adjusting the relative position of the clamping hoop and the conduction assembly.
Preferably, the conduction assembly comprises a main member, an auxiliary member and a connection pivot, wherein the main member is provided with a slide way extending along the length direction of the main member, one end of the connection pivot is abutted against one side of the slide way, the other end of the connection pivot penetrates through the slide way of the main member in a matching manner and is connected with the auxiliary member positioned on the other side of the slide way, the connection pivot can slide along the length direction of the slide way to adjust the relative position of the auxiliary member and the main member, the connection pivot is connected with the middle part of the auxiliary member, guide holes or guide ways for the matching tension assemblies to penetrate are symmetrically arranged on two sides of the middle part of the auxiliary member, and the tension assemblies penetrate through the guide holes or the guide ways of the auxiliary member and are connected with the positioning and adjusting assembly.
Preferably, the conduction assembly further comprises a connecting pivot, a slide way extending along the length direction of the main member is formed in the length direction of the main member and located on two sides of the pressure applying assembly, the connecting pivot is slidably arranged on the slide way and can slide along the length direction of the slide way, one end of the connecting pivot abuts against one side of the slide way, the other end of the connecting pivot penetrates through the slide way and is connected with an auxiliary member on the other side of the slide way, or one end of the connecting pivot abuts against one side of the slide way, the other end of the connecting pivot sequentially penetrates through the slide way and is connected with an adjusting nut after being located on the auxiliary member on the other side of the slide way, or the connecting pivot is slidably arranged in the slide way, one end of the connecting pivot is connected with the auxiliary member, and the other end of the connecting pivot is in threaded connection with the adjusting nut.
Preferably, the positioning and adjusting assembly comprises a nut and a spring, the spring is sleeved on the tension assembly, the nut is in threaded connection with the tension assembly, the spring is located between the conduction assembly and the nut, and the nut can extrude the spring to increase the pressure of the pressing assembly on the high point of the deformed bone and the tension of the pressing assembly on the low point of the deformed bone in the process of moving towards the direction of the conduction assembly along the tension assembly.
The invention provides an orthopedic external fixator, which is different from the prior art in that the fixator comprises a conduction assembly, a tension assembly, a pressing assembly and a positioning adjustment assembly, wherein the positioning adjustment assembly is screwed and extruded along the length direction of the tension assembly, so that the conduction assembly has the tendency of moving downwards along the tension assembly to apply pressure to the pressing assembly, and meanwhile, the conduction assembly presses the positioning adjustment assembly upwards, and the positioning adjustment assembly is connected with the tension assembly to apply tension to the tension assembly. The device applies slow external force in the opposite direction to the malformed end, so that the malformed bone is reshaped, the orthopedic effect is good, and the risk is low.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an orthopedic external fixator according to an embodiment;
FIG. 2 is a schematic structural view of an orthopedic external fixator according to a second embodiment;
FIG. 3 is a schematic structural view of the conductive assembly of FIG. 1;
fig. 4 is a schematic structural view of the conductive element of fig. 2.
In the figure: 1. a butterfly nut; 2. a spring; 3. a tension assembly; 31. a bone puncture needle; 32. a tension member; 4. a pressure lever; 5. a conductive component; 51. a main member; 52. a secondary member; 53. connecting a hinge; 6. a malformed bone; 7. a slideway; 8. a limiting groove; 9. a base.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Example one
The embodiment provides an orthopedic external fixator, which is fixed on a malformed bone 6 by adopting a minimally invasive surgery and applies an external force in the opposite direction to the malformed end of the malformed bone 6. The theoretical basis is Wolff's law: the growth of the bone is influenced by mechanical stimulation to change its structure, and the deformed bone 6 is reshaped by applying a gentle external force in the opposite direction to the deformed end.
Specifically, as shown in fig. 1, the fixator includes a conducting component 5, a tension component 3, a pressing component and a positioning and adjusting component, wherein the conducting component 5 is located outside a malformed bone 6 (bone to be corrected), the conducting component 5 is substantially parallel to the malformed bone 6, one end of the pressing component abuts against a vertex (position) of the malformed bone 6, the other end of the pressing component abuts against or is connected with the conducting component 5, one end of the tension component 3 is fixed at a low point (position) of the malformed bone 6, the other end of the tension component 3 passes through the conducting component 5 and is in guide sliding assembly with the conducting component 5, so that the conducting component 5 can be far away from or close to the malformed bone along the length direction of the tension component 3, the tension component 3 is detachably provided with the positioning and adjusting component capable of rotating along the length direction of the tension component 3, and the pressing component and the positioning and adjusting component are respectively arranged at two sides of the conducting component 5, the positioning and adjusting component can abut against the conducting component 5 and press the conducting component 5 to move towards the direction of the malformed bone in the process of rotating and moving along the length direction of the tension component 3. In the process of correction, the positioning and adjusting assembly rotates and transfers towards the direction of the conducting assembly 5 and generates pressure on the conducting assembly 5 and the pressing assembly, meanwhile, the positioning and adjusting assembly reversely acts on the tension assembly 3 to generate tension, so that the high point of the deformed bone 6 acts on the pressure and the low point of the deformed bone 6 act on the tension, and the opposite acting forces are matched to generate the correcting effect on the deformed end.
As an optional implementation manner, the pressing assembly includes a pressure rod 4 and a base 9, one end of the pressure rod 4 abuts against or is detachably or adjustably connected with the conducting assembly 5, the other end of the pressure rod 4 is detachably or fixedly connected with the base 9, the pressure rod 4 and the base 9 are detachably connected in a manner of plugging, screwing, clamping and the like, when the pressure rod 4 and the base 9 are detachably connected, the base 9 can be provided with a plurality of seats with different sizes or different shapes, the plurality of unequal bases 9 can judge the specific selection of the base 9 according to the specific shape of the deformed bone 6 of the patient, as for the specific shape of the base 9, the seat is generally block-shaped, and the bottom surface side of the base 9 is provided with anti-slip threads, anti-slip grooves or saw-toothed bars, so as to prevent the base 9 from separating from the abutting part.
Furthermore, the top surface side of the base is provided with adjusting screw holes at intervals for adjusting the relative positions of the pressure rod 4 and the base 9, wherein the adjusting screw holes are matched with the pressure rod 4, and one end of the pressure rod 4 penetrates into the adjusting screw holes so that the pressure rod 5 and the base 9 can be detachably connected. Furthermore, there are many ways that the base and the pressure rod 4 can be position-adjusted and detachably connected, for example, the base is further provided with a sliding groove along the length direction or the width direction of the base, or a cross sliding groove is directly formed to adjust the relative position, and a required structure (a protrusion or a groove is formed on the side wall of the sliding groove, a groove or a protrusion is formed on the end head of the corresponding pressure rod 4, etc.) is formed on the side wall of the sliding groove to realize the arrangement of the sliding groove and the pressure rod 4 in an inserting manner.
As an optional embodiment, the positioning adjustment assembly comprises a nut and a spring 2, the spring 2 is sleeved on the tension assembly 3, the nut is in threaded connection with the tension assembly 3, the spring 2 is located between the conduction assembly 5 and the nut, the spring 2 can be extruded by the nut in the process of rotating the tension assembly 3 to the conduction assembly 5 so as to increase the pressure of the pressing assembly on the high point of the deformed bone 6 and the tension of the deformed bone 6 on the low point, and meanwhile, the spring 2 plays a role in continuous pressurization, the nut can adopt a conventional nut, and the same nut can also be set as a butterfly nut 1 for facilitating hand-holding and screwing, and the like.
As an alternative embodiment, the single set of tension assembly 3 is matched with the compression assembly, so that the compression assembly can receive more pressure on the side close to the tension assembly 3 than on the side far away from the tension assembly 3, and the compression assembly is easy to apply force to incline when acting on the malformed bone 6 for a long time. For further optimizing the technical scheme, at least two sets of tension components 3 are arranged, the at least two sets of tension components 3 are respectively arranged at two sides of the pressure applying component, and any one set of tension component 3 is assembled with the conducting component in a guiding and sliding manner. Certainly, in a more preferable arrangement scheme, the number of sets of the tension assemblies 3 is in pairs, and any pair of the tension assemblies 3 is symmetrically arranged on two sides of the pressing assembly.
The conducting assembly 5 provided by the first embodiment includes a main member 51 in a plate shape or a rod shape, the conducting assembly 5 is provided with a hole 7 which is matched with the shape of the pulling assembly 3 and is perpendicular to the length direction of the conducting assembly 5 at intervals in the length direction, the pulling assembly 3 passes through the hole 7 and can vertically slide along the hole 7 so as to adjust the relative position of the pulling assembly 3 and the main member 51, or the main member 51 is provided with a slideway 7 extending along the length direction of the main member, and the pulling assembly 3 is matched and passes through the slideway 7 and can move along the length direction and the height direction of the slideway 7.
The tension assembly 3 comprises a tension member arranged as a threaded rod. Or the tension member comprises a light section and thread sections positioned at two ends of the light section, the light section and the thread sections are integrally formed, the positioning and adjusting assembly is connected with the thread section at one end of the tension assembly 3, the thread end at the other end of the tension assembly 3 is connected with the deformed bone 6, and the end of the thread section connected with the deformed bone 6 is arranged to be a tip.
As optional implementation mode, the middle part of conduction subassembly is seted up and is held the spacing groove 8 that the tip of pressure pole 4 penetrated, and slide 7 sets up in spacing groove 8 both sides, and pressure pole 4 inserts in spacing groove 8 so that pressure pole 4 and conduction subassembly plug are connected or butt or through bolt adjustable connection. Furthermore, a plurality of spacing grooves 8 have been seted up at the middle part of conduction subassembly, and a plurality of more than or equal to two that indicate, a plurality of spacing grooves 8 set up in the middle part of conduction subassembly along the length direction interval of conduction subassembly, and spacing groove 8's effect is for preventing the slope of pressure bar 4, corresponds different slide 7 positions through adjusting tension assembly 3 and in order to change the distance between tension assembly 3, the position that tension assembly 3 is fixed in on the bone 6 that malformates and the corresponding position of pressure bar 4 and bone 6 that malformates.
When the pressure rod 4 and the conducting component are arranged to be in adjustable connection through the bolt, the limiting groove 8 penetrates through the conducting component, one end of the pressure rod 4 penetrates through the limiting groove 8, and nuts in threaded connection with the pressure rod 4 are sleeved on sections of the pressure rod 4 on the upper side and the lower side of the limiting groove 8, so that the position of the pressure rod 4 and the position of the conducting component are limited, and the pressure rod 4 is prevented from sliding relative to the conducting component after being extruded by the deformed bone.
As an alternative embodiment, a clamp is fixed at one end of the pressure rod 4, and the pressure rod 4 is fixed on the conducting component 5 through the clamp so that a user can adjust the position relation between the base 9 and the malformed bone 6 by adjusting the relative position of the clamp and the conducting component 5.
When the device is used, the tension assembly 3 is implanted into a bone (one end of the tension assembly 3 is implanted into the bone through a cutting thread), the base 9 is implanted into a bone surface (the base 9 is implanted into the bone surface at a high point of the deformed bone in a minimally invasive incision mode), and the pressure of the high point and the tension of the low point of the deformed bone are adjusted through adjusting the positioning adjusting assembly according to actual working conditions.
The pressure rod 4 and the tension rod 3 are both perpendicular to the longitudinal axis of the bone at the implantation position.
Example two
The difference between the second embodiment and the first embodiment is that the conductive component is different from the tension component, and the second embodiment is more suitable for the osteoporosis group.
The conducting assembly comprises a main member 51, a secondary member 52 and connecting hinges 53, wherein any secondary member 52 is provided with one connecting hinge 54, so that the number of the secondary members 52 corresponds to the number of the connecting hinges 54. The middle section of the main member 51 abuts against or is connected with the pressure rod 4, and the auxiliary members 52 are symmetrically arranged at both sides (in the length direction of the main member 51) of the middle section of the main member 51 through the connecting hinges 54.
Further, the main member 51 includes a middle section, a front section and a rear section located at two ends of the middle section, the front section, the middle section and the rear section are sequentially connected and integrally formed, the front section and the rear section of the main member 51 are respectively provided with a slide 7, the connecting hinge 53 can be connected with the auxiliary member 52 and can slide along the length direction of the slide 7 to adjust the relative position of the auxiliary member 52 and the main member 51, one end of the connecting hinge 53 abuts against one side of the slide, and the other end of the connecting hinge 53 is matched with the slide 7 passing through the main member 51 and is connected with the auxiliary member 52 located at the other side of the slide 7 or is in threaded connection with a nut after passing through the auxiliary member 52 to lock the relative position of the auxiliary member 52 and the main member 51. Further, the front and rear two-stage slideways 7 of the main member 51 are symmetrically arranged with the middle stage as a symmetry plane.
The connecting hinge 53 is connected with the middle part of the secondary member 52, guide holes or guide ways matched with the pulling force components 3 are symmetrically arranged on two sides of the middle part of the secondary member 52, and the pulling force components 3 are connected with the positioning adjusting components after passing through the guide holes or guide ways of the secondary member 52.
Further, the connection hinge 53 includes a connection head wider than the width of the guide hole or the guide channel, a connection column and a connection section capable of passing through the guide hole or the guide channel in a matching manner, the connection section is connected with the auxiliary member 52 or connected with the nut after passing through the auxiliary member 52, the connection head, the connection column and the connection section are sequentially connected and integrally formed, and further, the connection hinge 53 is in a shape of a drawing pin. When the connecting section of the connecting hinge 53 is connected to the secondary member 52, a screw hole matched with the connecting section is formed on the side of the secondary member 52, which is opposite to the main member 51, and the connecting section is in threaded connection with the secondary member 52, or a through threaded hole is formed in the secondary member 52, and the connecting section of the connecting hinge 53 can penetrate through the secondary member 52 and then is in threaded connection with a nut on the outer side of the secondary member 52 to fix the relative position of the secondary member 52 and the main member 51. Or the connecting pivot is arranged in the slide way in a sliding manner, one end of the connecting pivot is connected with the auxiliary component, and the other end of the connecting pivot is in threaded connection with the adjusting nut.
The tension assembly 3 comprises a bone penetrating needle 31 transversely penetrating the deformed bone, tension members 32 arranged in pairs, defining: the two tension pieces 32 are provided with through holes through which the bone penetrating needles 31 penetrate at one ends, threads for threaded connection with the positioning and adjusting assemblies are arranged at the other ends of the tension pieces 32, any pair of tension pieces 32 are respectively arranged at two sides of the auxiliary member 51 and penetrate through guide holes or guide ways on the auxiliary member 52 to be in guide sliding assembly with the auxiliary member 52, the positioning and adjusting assemblies are in threaded connection with threaded ends of the tension pieces 32, and the bone penetrating needles 31 penetrate through the deformed bones and the through holes of the tension pieces 32 positioned at two sides of the deformed bones.
The present invention is not limited to the above embodiments, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (10)

1. An orthopedic external fixator is characterized by comprising a conduction component arranged on the outer side of a deformed bone (6), a tension component (3) for applying tension to the deformed bone (6) and a pressing component for applying pressure to the deformed bone (6), wherein one end of the pressing component is abutted against the top point of the deformed bone (6), the other end of the pressing component is abutted against or connected with the conduction component, the tension component (3) is fixed at the low point of the deformed bone (6), and the tension component (3) and the conduction component are assembled in a guiding and sliding manner, so that the conducting assembly (3) can be far away from or be close to the malformed bone (6) along the length direction of the tension assembly (3), the positioning adjusting assembly which can be rotationally moved along the length direction of the tension assembly (3) to extrude the conducting assembly to be close to the malformed bone (6) along the length direction of the tension assembly (3) is arranged on the tension assembly (3), and the pressing assembly and the positioning adjusting assembly are respectively arranged on two sides of the conducting assembly.
2. The orthopedic external fixator according to claim 1, characterized in that the pressure applying component comprises a pressure rod (4) and a base (9), one end of the pressure rod (4) is abutted or connected with the conducting component, the other end of the pressure rod (4) is connected with the base (9), and the bottom surface of the base (9) is provided with an anti-slip groove.
3. The orthopedic external fixator according to claim 1, wherein there are at least two sets of tension components, at least two sets of tension components are respectively arranged on both sides of the pressure applying component and any one set of tension components is slidably assembled with the conducting component in a guiding manner.
4. The orthopedic external fixator according to claim 3, characterized in that the conducting component comprises a plate-shaped or rod-shaped main component (51), the main component (51) is provided with a slideway (7) extending along the length direction thereof, the tension component (3) is matched and passed through the slideway (7) and can move along the length direction and the height direction of the slideway (7), or the main component (51) is provided with holes (7) at intervals for matching the tension component (3) to pass through, the tension component (3) is matched and passed through the holes (7) and can move along the axial direction of the holes (7) so as to adjust the relative position of the tension component (3) and the main component (51).
5. The orthopedic external fixator according to claim 4, characterized in that the tension assembly (3) comprises a tension member configured as a screw, or the tension member comprises a light section and a threaded section at both ends of the light section, the light section is integrally formed with the threaded section, and the positioning adjustment assembly is in threaded connection with the tension member.
6. The orthopedic external fixator according to claim 5, characterized in that the middle of the conducting component is provided with a limiting groove (8) for accommodating the end portion of the pressure rod (4) to penetrate, the slideway (7) or the pore channel (7) is arranged at two sides of the limiting groove (8), and the pressure rod (4) is inserted into the limiting groove (8) to connect the pressure rod and the conducting component in a plugging or abutting manner or in an adjustable connection through a bolt.
7. The orthopedic external fixator according to claim 5, characterized in that a clamp is fixed at one end of the pressure rod (4), and the pressure rod (4) is fixed on the conduction component through the clamp so that the user can adjust the position relation of the base and the malformed bone (6) by adjusting the relative positions of the clamp and the conduction component.
8. The orthopedic external fixator according to claim 3, characterized in that the conducting component comprises a main component (51), and auxiliary components (52) arranged on both sides of the main component (51) in the length direction, the auxiliary components (52) are arranged at an angle with the main component (51), the pressing component is abutted against or connected with the main component (51), the auxiliary component (52) is provided with a tension component (3) which is in guiding sliding assembly with the auxiliary component, the tension component (3) comprises bone penetrating needles (31) (31) transversely passing through the deformed bone, tension pieces (32) (32) which are arranged on both sides of the main component (51) in the width direction and are in guiding sliding fit with the auxiliary component (52), the main component (51) can move along the length direction of the tension pieces (32) (32) along with the auxiliary component (52), and the tension of the bone penetrating needles (31) (31) respectively passes through the tension pieces (32) (32) on both sides of the deformed bone, and one end of the tension element (32) (32) far away from the deformed bone passes through the auxiliary component (52) and then is in threaded connection with the positioning and adjusting assembly.
9. The orthopedic external fixator according to claim 8, characterized in that the conducting assembly further comprises a connecting hinge (53), the main member (51) has a slide way (7) extending along the length direction of the main member (51) and located at both sides of the pressing assembly, the connecting hinge (53) is slidably disposed on the slide way (7) and can slide along the length direction of the slide way (7), one end of the connecting hinge (53) abuts against one side of the slide way (7) and the other end of the connecting hinge (53) passes through the slide way (7) and is connected with the auxiliary member (52) on the other side of the slide way (7), or one end of the connecting hinge (53) abuts against one side of the slide way (7) and the other end of the connecting hinge (53) sequentially passes through the slide way (7) and the auxiliary member (52) located at the other side of the slide way (7) and is connected with the adjusting nut, or the connecting pivot (53) is arranged in the slide way (7) in a sliding way, one end of the connecting pivot (53) is connected with the auxiliary component (52), and the other end of the connecting pivot (53) is in threaded connection with the adjusting nut.
10. The orthopedic external fixator according to claim 4 or 8, characterized in that the positioning adjustment assembly comprises a nut (1) and a spring (2), the spring (2) is sleeved on the tension assembly (3), the nut (1) is in threaded connection with the tension assembly (3), the spring (2) is located between the conduction assembly and the nut (1), and the nut (1) can press the spring (2) to increase the pressure of the pressure application assembly on the high point of the deformed bone (6) and the tension of the deformed bone (6) at the low point during the movement of the tension assembly (3) to the direction of the conduction assembly.
CN202111466769.9A 2021-12-03 2021-12-03 Orthopedic external fixator Withdrawn CN113974804A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111466769.9A CN113974804A (en) 2021-12-03 2021-12-03 Orthopedic external fixator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111466769.9A CN113974804A (en) 2021-12-03 2021-12-03 Orthopedic external fixator

Publications (1)

Publication Number Publication Date
CN113974804A true CN113974804A (en) 2022-01-28

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111466769.9A Withdrawn CN113974804A (en) 2021-12-03 2021-12-03 Orthopedic external fixator

Country Status (1)

Country Link
CN (1) CN113974804A (en)

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Application publication date: 20220128