CN112998831B - Adjustable fixing device for trauma orthopedics - Google Patents
Adjustable fixing device for trauma orthopedics Download PDFInfo
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- CN112998831B CN112998831B CN202110188174.5A CN202110188174A CN112998831B CN 112998831 B CN112998831 B CN 112998831B CN 202110188174 A CN202110188174 A CN 202110188174A CN 112998831 B CN112998831 B CN 112998831B
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- 208000014674 injury Diseases 0.000 title claims abstract description 20
- 230000000399 orthopedic effect Effects 0.000 title claims abstract description 19
- 230000008733 trauma Effects 0.000 title claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 210000001503 joint Anatomy 0.000 claims description 29
- 208000010392 Bone Fractures Diseases 0.000 description 18
- 206010017076 Fracture Diseases 0.000 description 16
- 210000000988 bone and bone Anatomy 0.000 description 12
- 210000003414 extremity Anatomy 0.000 description 11
- 238000006073 displacement reaction Methods 0.000 description 7
- 239000007787 solid Substances 0.000 description 7
- 210000003557 bones of lower extremity Anatomy 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 208000027418 Wounds and injury Diseases 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 229910001069 Ti alloy Inorganic materials 0.000 description 3
- 230000002980 postoperative effect Effects 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 206010061223 Ligament injury Diseases 0.000 description 2
- 208000026137 Soft tissue injury Diseases 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 230000000472 traumatic effect Effects 0.000 description 2
- 206010009245 Clavicle fracture Diseases 0.000 description 1
- 208000007356 Fracture Dislocation Diseases 0.000 description 1
- 206010023204 Joint dislocation Diseases 0.000 description 1
- 206010024453 Ligament sprain Diseases 0.000 description 1
- 206010072970 Meniscus injury Diseases 0.000 description 1
- 208000029549 Muscle injury Diseases 0.000 description 1
- 208000002565 Open Fractures Diseases 0.000 description 1
- 206010037802 Radius fracture Diseases 0.000 description 1
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 208000010040 Sprains and Strains Diseases 0.000 description 1
- 208000021945 Tendon injury Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 210000000544 articulatio talocruralis Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 210000003041 ligament Anatomy 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 210000000623 ulna Anatomy 0.000 description 1
- 208000017013 ulna fracture Diseases 0.000 description 1
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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
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Biomedical Technology (AREA)
- Engineering & Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention relates to an adjustable fixing device for trauma orthopedics. The tensioner comprises a base ring, a rotary ring and a fixed ring which are positioned on two sides, wherein a plurality of tensioners are respectively arranged on the rotary ring, the base ring and the fixed ring; the base ring comprises a base ring outer ring and a base ring inner ring which is positioned on the inner side of the base ring and takes the base ring as a track, the base ring inner ring is a toothed ring with teeth on the outer side edge, an adjusting bolt with a gear in the middle is also arranged on the base ring outer ring, the adjusting bolt is in meshing transmission with the teeth in the base ring inner ring, and all tensioners on the base ring are arranged on the base ring outer ring and the base ring inner ring; the slewing ring comprises a slewing ring body, the fixing ring comprises a fixing ring body, a plurality of first connecting rods are arranged between the inner ring of the base ring and the slewing ring body, and a plurality of second connecting rods are arranged between the outer ring of the base ring and the fixing ring body. The adjustable fixing device is reasonable in structural design, and due to the adjustable characteristic, the convenience of operation is improved, and meanwhile, the accuracy, effectiveness and reliability of fixing are improved.
Description
Technical Field
The invention belongs to the technical field of wound orthopedics supplies, and particularly relates to an adjustable fixing device for wound orthopedics.
Background
Clinically, the traumatic orthopedics mainly refers to diseases caused by external force and trauma, such as limb fracture, lumbar fracture and joint dislocation, ligament injury of joints, meniscus injury, muscle and soft tissue injury and the like of patients. The traumatism orthopedics department is one of the important departments of modern clinic, and means fracture and dislocation caused by trauma, ligament and tendon injury in clinical content, the main trauma comprises traffic accident injury, mechanical sprain and percussion injury, and children and old people can slip and fall. Fractures caused by trauma often combine with severe soft tissue injury, sometimes the brute force is large, bone blocks can pierce skin to cause open fracture, the treatment is difficult, and common fractures comprise clavicle fracture, humeral shaft fracture, ulna and radius fracture, tibiofibular fracture, femoral shaft fracture, ankle joint fracture and the like.
Therefore, it is known that the treatment of fracture is one of the important contents in trauma orthopedics, and it is generally necessary to perform external fixation using a fixing device or the like after fracture surgery to perform external fixation on bones to assist in bone repair.
The existing fixing device is generally single in fixing mode and inconvenient in fixing operation. On the other hand, the conventional fixing device is difficult to adjust after installation, which causes the need of re-assembly and disassembly when the installation position is deviated, resulting in cumbersome operation and pain of patients. Therefore, the structure of the fixing device needs to be optimally designed to solve the aforementioned problems.
Disclosure of Invention
The invention provides an adjustable fixing device for trauma orthopedics, which is reasonable in structural design and convenient to use, and aims to solve the technical problems in the prior art, so that the fixing device has the characteristic of adjustability, the convenience of operation of medical workers is improved, and the accuracy, effectiveness and reliability of fixing are improved.
The technical scheme adopted by the invention for solving the technical problems in the prior art is as follows: an adjustable fixing device for trauma orthopedics comprises a base ring positioned in the middle, and a rotary ring and a fixing ring positioned on two sides, wherein a plurality of tensioners are respectively arranged on the rotary ring, the base ring and the fixing ring; the base ring comprises a base ring outer ring and a base ring inner ring which is positioned on the inner side of the base ring outer ring and takes the base ring outer ring as a track, the base ring inner ring is a toothed ring with teeth on the outer side edge, an adjusting bolt with a gear in the middle is also arranged on the base ring outer ring, the adjusting bolt is in meshing transmission with the teeth on the outer side edge of the base ring inner ring, and all tensioners on the base ring are fixedly arranged on the base ring outer ring and the base ring inner ring; the swivel ring includes the swivel ring body, gu fixed ring is including solid fixed ring body, be equipped with a plurality of head rods between base ring inner ring and swivel ring body, be equipped with a plurality of second connecting rods between base ring outer loop and solid fixed ring body, each head rod and each second connecting rod are the threaded rod, the outer end of each head rod is passed the connecting hole that sets up on the swivel ring body and is adopted the locking of locking nut, the outer end of each second connecting rod is passed the connecting hole that sets up on solid fixed ring body and is adopted the locking of locking nut, the inner of each head rod is passed the connecting hole that sets up on the base ring inner ring and is adopted the locking of locking nut, the inner of each second connecting rod is passed the connecting hole that sets up on the base ring outer loop and is adopted the locking nut to lock.
The invention has the advantages and positive effects that:
compared with the prior fixing device, the fixing device provided by the invention is provided with a base ring which is arranged in the middle and consists of a base ring outer ring and a base ring inner ring, and a revolving ring and a fixing ring which are arranged on two sides, so that a stable frame structure is provided for fixing after fracture operation, the frame structure provides external protection for a fracture fixing part, and provides a necessary protection function while serving as a fixing mechanism support.
Through adopting the head rod to connect slewing ring and base ring inner ring, adopt the second connecting rod to connect solid fixed ring and base ring outer loop, make this fixing device divide into two parts that can take place relative gyration in the front and back, at solid fixed ring, on the part of base ring outer loop and second connecting rod constitution keeps the unchangeable basis in position, by the slewing ring, the circumferential direction regulation can be made to the part that base ring inner ring and head rod constitute, consequently, for the fixed function that provides the torsional modulation of fracture postoperative. Through setting up the adjusting bolt who is connected with the meshing of base ring inner ring, promoted and carried out the operation convenience of aforementioned twist adjustment. Adopt the locking mother to lock between upper and lower both ends and the corresponding ring body through setting up each head rod, adopt the locking mother to lock between the upper and lower both ends that set up each second connecting rod and the corresponding ring body, make the distance between gyration ring and the base ring, the distance between base ring and the solid fixed ring can be adjusted, and this fixing device's front and back two parts can carry out solitary length adjustment, this fixing device can be through the different patient's of aforementioned length adjustment adaptation limbs size, the adaptability requirement of wound surgery to fixing device has been satisfied. The adjustable characteristic of the fixing device provided by the invention improves the convenience of operation of medical personnel, improves the accuracy, effectiveness and reliability of fracture postoperative fixation, and ensures the postoperative recovery effect of patients.
Preferably: the rotary ring body comprises a first rotary half ring and a second rotary half ring which are in butt joint connection, and the first rotary half ring and the second rotary half ring are in lap joint at the butt joint end and are fixedly connected by adopting rotary ring bolts; the fixed ring body comprises a first fixed semi-ring and a second fixed semi-ring which are in butt joint, and the first fixed semi-ring and the second fixed semi-ring are in lap joint at the end parts of the butt joint and fixedly connected by adopting a fixed ring bolt.
Preferably: the outer ring of the base ring comprises a first outer ring of the base and a second outer ring of the base which are in butt joint connection, and the first outer ring of the base and the second outer ring of the base are lapped and fixedly connected at the butt joint end part; the inner ring of the base ring comprises two inner ring bodies which are in butt joint, and the two inner ring bodies are in lap joint at the butt joint end parts.
Preferably: the tensioner comprises a fixed base and a movable base which moves inwards or outwards along the radial direction of the fixed base, and a tensioning long screw is fixedly installed on the movable base.
Preferably: a groove is formed in the middle of the bottom of the movable base, and the top of the fixed base falls into the groove; an adjusting screw rod with an adjusting end at the outer end is installed in the groove of the movable base, a threaded hole is formed in the fixed base, and the middle of the adjusting screw rod is located in the threaded hole.
Preferably: the tensioning long screw comprises a screw section with a tip at the inner end and a threaded rod section with an external thread, a mounting hole is formed in the movable base, and the threaded rod section of the tensioning long screw is located in the mounting hole and locked by an inner locking nut and an outer locking nut.
Preferably: two of the tensioners on the base ring are positioned at the overlapping position of the first base outer ring and the second base outer ring, and the fixed bases of the two tensioners are fixedly connected with the overlapping position of the two base outer rings by adopting mounting bolts.
Preferably: the ring bodies of the first rotating half ring and the second rotating half ring are provided with a plurality of rotating ring inner connecting holes, and the outer sides of the ring bodies of the first rotating half ring and the second rotating half ring are respectively provided with a plurality of rotating ring wing plates with rotating ring outer connecting holes; the ring bodies of the first fixed semi-ring and the second fixed semi-ring are respectively provided with a plurality of fixed ring inner connecting holes, and the outer sides of the ring bodies of the first fixed semi-ring and the second fixed semi-ring are respectively provided with a plurality of fixed ring wing plates with fixed ring outer connecting holes.
Preferably: the outer sides of the ring bodies of the first base outer ring and the second base outer ring are respectively provided with a plurality of base ring wing plates with outer ring connecting holes, and two inner ring bodies of the base ring inner ring are respectively provided with a plurality of inner ring connecting holes.
Preferably: the upper end of each first connecting rod is positioned in the connecting hole in the rotary ring, the lower end of each first connecting rod is positioned in the connecting hole in the inner ring, the lower end of each second connecting rod is positioned in the connecting hole outside the fixed ring, and the upper end of each second connecting rod is positioned in the connecting hole in the outer ring.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic perspective view of the swivel ring of FIG. 1;
FIG. 3 is a schematic perspective view, from above, of the base ring and tensioner of FIG. 1;
FIG. 4 is a schematic front view of the base ring and tensioner of FIG. 1;
FIG. 5 is a schematic perspective view, from a lower perspective, of the base ring and tensioner of FIG. 1;
FIG. 6 is a perspective view, from a lower perspective, of the base ring and tensioner of FIG. 1;
FIG. 7 is a schematic view of the internal construction of the susceptor ring of FIG. 1;
FIG. 8 is a perspective view of the retaining ring of FIG. 1;
fig. 9 is a schematic diagram of the structure of the use state of the present invention.
In the figure:
1. a slewing ring; 1-1, a slewing ring body; 1-1-1, a first rotating half ring; 1-1-2, a second rotating semi-ring; 1-1-3, revolving ring bolt; 1-2, revolving ring wing plates; 1-3, rotating a ring screw; 1-4, connecting holes in the rotary ring; 1-5, connecting holes outside the rotary ring; 2. a first connecting rod; 3. a base ring; 3-1, a base ring outer ring; 3-1-1, a first base outer ring; 3-1-2, a second base outer ring; 3-2, a base ring wing plate; 3-3, base ring screws; 3-4, inner ring connecting holes; 3-5, outer ring connecting holes; 3-6, a base ring inner ring; 3-7, adjusting bolts; 4. a tensioner; 4-1, adjusting a screw rod; 4-2, moving the base; 4-3, installing a bolt; 4-4, tensioning the long screw; 4-5, fixing the base; 5. a second connecting rod; 6. a fixing ring; 6-1, fixing the ring body; 6-1-1, a first stationary half ring; 6-1-2, a second stationary half ring; 6-1-3, fixing a ring bolt; 6-2, fixing a ring wing plate; 6-3, fixing a ring screw; 6-4, connecting holes in the rotary ring; 6-5, connecting holes outside the rotary ring.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are described in detail.
Referring to fig. 1, the adjustable fixing device for traumatic orthopedics of the invention comprises a base ring 3 in the middle and a revolving ring 1 and a fixing ring 6 on both sides, and a plurality of tensioners 4 are respectively mounted on the revolving ring 1, the base ring 3 and the fixing ring 6 (for the sake of clear graphic representation, only two tensioners 4 which are located on the base ring 3 and are circumferentially spaced by 180 degrees are shown, and the tensioners 4 at other positions are not shown in the figure).
Wherein, the outer side parts of the fixing ring 6 and the base ring 3 are fixed with one part of the limb of the patient by the tensioners 4, the inner side parts of the rotary ring 1 and the base ring 3 are fixed with the other part of the limb of the patient by the tensioners 4, the fracture position is usually positioned between the two parts of the limb of the patient, and in order to ensure the accuracy of the butt joint of the fracture section, under the condition of ensuring that the outer side parts of the fixing ring 6 and the base ring 3 are not moved in the fixing stage in the operation and the operation, the angle position adjustment of the outer section of the fractured bone is realized by adjusting the inner side parts of the rotary ring 1 and the base ring 3 to do micro torsional displacement.
Referring to fig. 2, it can be seen that:
the revolving ring 1 comprises a revolving ring body 1-1, and the revolving ring body 1-1 is made of stainless steel plates, aluminum alloy plates or titanium alloy plates and the like. As shown in the figure, the revolving ring body 1-1 comprises a first revolving half ring 1-1-1 and a second revolving half ring 1-1-2 which are connected in a butt joint mode, wherein the first revolving half ring 1-1-1 and the second revolving half ring 1-1-2 are overlapped at the butt joint end and fixedly connected through revolving ring bolts 1-1-3. The rotary ring body 1-1 is composed of two parts which are in butt joint connection, and has the following functions: the revolving ring body 1-1 can be used in a complete annular form or disassembled into a semi-ring form.
In this embodiment, a plurality of swivel ring inner connecting holes 1-4 are formed in the ring bodies of the first swivel half ring 1-1-1 and the second swivel half ring 1-1-2, and a plurality of swivel ring wing plates 1-2 with swivel ring outer connecting holes 1-5 are respectively formed on the outer sides of the ring bodies of the first swivel half ring 1-1-1 and the second swivel half ring 1-1-2.
As shown in the drawings, in which swivel ring inner connection holes 1-4 are provided swivel ring screws 1-3, and each swivel ring screw 1-3 is used for mounting each tensioner 4 on the swivel ring 1, it is conceivable that each tensioner 4 can be mounted by selecting a suitable position since a plurality of swivel ring inner connection holes 1-4 are provided on each of the first swivel ring 1-1-1 and the second swivel ring 1-1-2.
Referring to fig. 8, it can be seen that:
the fixing ring 6 comprises a fixing ring body 6-1, and the fixing ring body 6-1 is made of a stainless steel plate, an aluminum alloy plate or a titanium alloy plate. As shown in the figure, the fixing ring body 6-1 includes a first fixing half ring 6-1-1 and a second fixing half ring 6-1-2 which are butt-jointed, are overlapped at butt-jointed ends and are fixedly connected by a fixing ring bolt 6-1-3. The fixing ring body 6-1 is composed of two parts which are in butt joint connection, and has the following functions: the fixing ring body 6-1 can be used in a complete annular form or disassembled into a semi-ring form.
In this embodiment, the ring bodies of the first stationary half ring 6-1-1 and the second stationary half ring 6-1-2 are respectively provided with a plurality of stationary ring inner connection holes 6-4, and the outer sides of the ring bodies of the first stationary half ring 6-1-1 and the second stationary half ring 6-1-2 are respectively provided with a plurality of stationary ring wing plates 6-2 having stationary ring outer connection holes 6-5.
As shown in the drawings, in which fixing ring inner connection holes 6-4 are provided with fixing ring screws 6-3, and the fixing ring screws 6-3 are used to mount the tensioners 4 on the fixing ring 6, it is conceivable that the tensioners 4 can be mounted by selecting appropriate positions since the fixing ring inner connection holes 6-4 are provided in plural numbers on both the first fixing ring 6-1-1 and the second fixing ring 6-1-2.
Referring to fig. 3, 4, 5, 6 and 7, it can be seen that:
the base ring 3 comprises a base ring outer ring 3-1 and a base ring inner ring 3-6 which is positioned at the inner side of the base ring outer ring 3-1 and takes the base ring outer ring 3-1 as a track, and the base ring inner ring 3-6 is a toothed ring with teeth at the outer side edge. The outer ring 3-1 of the base ring and the inner ring 3-6 of the base ring are both made of stainless steel plates, aluminum alloy plates or titanium alloy plates, an annular track groove (namely the section of the outer ring 3-1 of the base ring is in a U shape) is arranged in the middle of the inner edge of the outer ring 3-1 of the base ring, and the outer edge of the inner ring 3-6 of the base ring falls into the track groove of the outer ring 3-1 of the base ring, so that the inner ring 3-6 of the base ring can rotate in the track groove and cannot fall out.
An adjusting bolt 3-7 with a gear in the middle is also arranged on the outer ring 3-1 of the base ring, and the gear part of the adjusting bolt 3-7 is in meshing transmission with the gear on the outer edge of the inner ring 3-6 of the base ring. When the adjusting bolt 3-7 is operated by a tool to rotate, the inner ring 3-6 of the base ring can rotate in the rotating way. In actual assembly, the inner ring 3-6 of the base ring is in tight fit assembly in the track groove, so that a certain friction force exists between the outer ring 3-1 of the base ring and the inner ring 3-6 of the base ring, and after the rotating operation of the adjusting bolt 3-7 is carried out, the inner ring 3-6 of the base ring is stopped at the adjusted position without resetting or further rotating.
The outer ring 3-1 of the base ring comprises a first outer ring 3-1-1 and a second outer ring 3-1-2 of the base which are in butt joint connection, and the two rings are lapped and fixedly connected at the butt joint end part; the inner ring 3-6 of the susceptor ring comprises two inner ring bodies which are butt-joined and overlap at the butt-joined ends.
The two parts of the outer ring 3-1 of the base ring and the inner ring 3-6 of the base ring which are respectively in butt joint are arranged to form the structure, and the function is as follows: (1) the convenience of processing and assembling is improved; (2) the outer ring 3-1 of the base ring and the inner ring 3-6 of the base ring can be used in a complete ring shape or disassembled into a semi-ring shape.
In this embodiment, a plurality of base ring wing plates 3-2 with outer ring connecting holes 3-5 are respectively arranged on the outer sides of the ring bodies of the first base outer ring 3-1-1 and the second base outer ring 3-1-2, and a plurality of inner ring connecting holes 3-4 are respectively arranged on the two inner ring bodies of the base ring inner ring 3-6.
The tensioners 4 on the base ring 3 are mounted and secured to the base ring outer ring 3-1 and base ring inner ring 3-6. As shown in the drawings, in which base ring screws 3-3 are provided in several outer ring coupling holes 3-5 and several inner ring coupling holes 3-4, and each base ring screw 3-3 is used for mounting each tensioner 4 on the base ring 3, it is conceivable that each tensioner 4 can be mounted by selecting an appropriate position since a plurality of outer ring coupling holes 3-5 are provided on the base ring outer ring 3-1 and a plurality of inner ring coupling holes 3-4 are provided on the base ring inner ring 3-6.
A plurality of first connecting rods 2 are arranged between the inner ring 3-6 of the base ring and the body 1-1 of the revolving ring, and a plurality of second connecting rods 5 are arranged between the outer ring 3-1 of the base ring and the body 6-1 of the fixed ring. Each first connecting rod 2 connects the inner ring 3-6 of the base ring with the body 1-1 of the revolving ring to form a frame, each second connecting rod 5 connects the outer ring 3-1 of the base ring with the body 6-1 of the fixed ring to form a frame, and the relative torsional displacement is generated between the two frames by operating the rotation of the adjusting bolts 3-7.
In this embodiment, each first connecting rod 2 and each second connecting rod 5 are threaded rods, the outer end of each first connecting rod 2 penetrates through a connecting hole formed in the rotating ring body 1-1 and is locked by a nut, the outer end of each second connecting rod 5 penetrates through a connecting hole formed in the fixing ring body 6-1 and is locked by a nut, the inner end of each first connecting rod 2 penetrates through a connecting hole formed in the inner ring 3-6 of the base ring and is locked by a nut, and the inner end of each second connecting rod 5 penetrates through a connecting hole formed in the outer ring 3-1 of the base ring and is locked by a nut.
In this embodiment, the upper end of each first connecting rod 2 is located in the inner connecting hole 1-4 of the rotating ring, the lower end is located in the inner connecting hole 3-4 of the inner ring, the lower end of each second connecting rod 5 is located in the outer connecting hole 6-5 of the fixing ring, and the upper end is located in the outer connecting hole 3-5 of the outer ring.
Because the tip of each connecting rod all adopts fixed connection between lock mother and the corresponding ring body, consequently can adjust the hookup location between connecting rod and the ring body through unclamping or screwing corresponding lock mother, has realized correspondingly that the regulation of distance between gyration ring 1 and the base ring 3, distance between base ring 3 and the solid fixed ring 6.
Referring to fig. 4, 5, 6 and 7, it can be seen that:
the tensioner 4 comprises a fixed base 4-5 and a moving base 4-2 moving inwards or outwards along the radial direction of the fixed base 4-5, and a long tensioning screw 4-4 is installed and fixed on the moving base 4-2. The tensioning long screw 4-4 is correspondingly moved inwards or outwards by adjusting the moving base 4-2 to move inwards or outwards along the radial direction, and the fixed base 4-5 is fixedly connected with the ring body.
A groove is arranged at the middle position of the bottom of the movable base 4-2, the top of the fixed base 4-5 falls into the groove, so that the groove is equivalent to a slide way into which the fixed base 4-5 falls, as shown in the figure, the fixed base 4-5 is I-shaped in cross section, and correspondingly, the groove at the bottom of the movable base 4-2 is not I-shaped in cross section. An adjusting screw rod 4-1 with an adjusting end at the outer end is arranged in the groove of the movable base 4-2, a threaded hole is arranged on the fixed base 4-5, and the middle part of the adjusting screw rod 4-1 is positioned in the threaded hole. Thus, when the adjusting screw rod 4-1 is rotated by the adjusting end head to rotate forwards or backwards, the fixed base 4-5 is not moved, and the movable base 4-2 moves inwards or outwards.
The tensioning long screw 4-4 comprises a screw section with a tip at the inner end and a threaded rod section with external threads, a mounting hole is formed in the movable base 4-2, and the threaded rod section of the tensioning long screw 4-4 is located in the mounting hole and locked by an inner locking nut and an outer locking nut. In this embodiment, the mounting hole on the moving base 4-2 is a threaded hole, and the threaded rod section of the tensioning long screw 4-4 is located in the threaded hole, so that the tensioning long screw 4-4 can be moved inward or outward in the radial direction by rotating the tensioning long screw 4-4, and the inner and outer lock nuts are used for locking the tensioning long screw 4-4 which is moved in place, so as to prevent displacement.
In this embodiment, two of the tensioners 4 on the base ring 3 are located at the overlapping positions of the first base outer ring 3-1-1 and the second base outer ring 3-1-2, and the fixed bases 4-5 of the two tensioners 4 are fixedly connected with the overlapping positions of the two base outer rings by using the mounting bolts 4-3. Thus, at these two overlapping positions, the mounting bolt 4-3 simultaneously effects the overlapping connection of both the first outer base ring 3-1-1 and the second outer base ring 3-1-2, and the fixing of the fixing base 4-5 of the corresponding tensioner 4. Other positions of tensioner 4 are mounted and secured using base ring screws 3-3.
The assembling method comprises the following steps:
processing and molding a first rotary half ring 1-1-1 and a second rotary half ring 1-1-2 of the rotary ring 1, overlapping the end parts of the first rotary half ring and the second rotary half ring, and fixedly connecting the two by adopting rotary ring bolts 1-1-3 to form a complete rotary ring body 1-1; processing and forming a first fixed half ring 6-1-1 and a second fixed half ring 6-1-2 of the fixed ring 6, overlapping the end parts of the first fixed half ring and the second fixed half ring, and fixedly connecting the first fixed half ring and the second fixed half ring by using a fixed ring bolt 6-1-3 to form a complete fixed ring body 6-1;
a first base outer ring 3-1-1 and a second base outer ring 3-1-2 of a base ring outer ring 3-1 of a base ring 3 and two inner ring bodies of a base ring inner ring 3-6 are machined and formed, the inner ring bodies of the two base ring inner rings 3-6 are respectively placed into track grooves of the first base outer ring 3-1-1 and the second base outer ring 3-1-2, and then the two components are in butt joint connection; mounting and fixing the tensioner 4 by adopting a mounting bolt 4-3 at the two butt joint parts; installing adjusting bolts 3-7 at corresponding positions on the outer ring 3-1 of the base ring and enabling gears in the middle of the adjusting bolts 3-7 to be meshed and connected with the inner ring 3-6 of the base ring;
a plurality of first connecting rods 2 and a plurality of groups of locking nuts are adopted to connect the revolving ring body 1-1 and the inner ring 3-6 of the base ring to form a frame structure, and a plurality of second connecting rods 5 and a plurality of groups of locking nuts are adopted to connect the fixing ring body 6-1 and the outer ring 3-1 of the base ring to form a frame structure;
a plurality of tensioners 4 are respectively arranged on the rotary ring body 1-1, the fixed ring body 6-1, the base ring outer ring 3-1 and the base ring inner ring 3-6, generally, the number of the tensioners 4 on the rotary ring body 1-1, the fixed ring body 6-1, the base ring outer ring 3-1 and the base ring inner ring 3-6 is four, and because two tensioners 4 are already arranged on the base ring outer ring 3-1, two tensioners 4 are arranged on the base ring outer ring 3-1; the four tensioners 4 on each ring are generally equally angularly spaced, i.e. the angle between two adjacent tensioners 4 is 90 °.
The using method comprises the following steps:
(1) the full-ring type use method is shown in figure 1
In the using method, the fixing device is in a closed annular shape; the limbs of the patient penetrate from one side of the fixed ring 6 and penetrate from one side of the revolving ring 1; after the position is properly adjusted, firstly, locking nuts on tensioning long screws 4-4 of each tensioner 4 on the fixing ring 6 and each tensioner 4 on the outer ring 3-1 of the base ring are loosened, each tensioning long screw 4-4 is driven to rotate from the outer end, each tensioning long screw 4-4 is moved inwards along the radial direction until the inner end of each tensioning long screw 4-4 is pressed against the limb bone of the patient; then locking the locking nuts on the tensioning long screws 4-4 to lock the tensioning long screws 4-4 to prevent displacement; at this time, the frame structure composed of the fixing ring 6, the outer ring 3-1 of the base ring and the plurality of second connecting rods 5 is fixed with the limb skeleton of the patient;
then, the locking nuts on the tensioning long screws 4-4 of each tensioner 4 on the revolving ring 1 and each tensioner 4 on the inner ring 3-6 of the base ring are loosened, each tensioning long screw 4-4 is driven to rotate from the outer end, each tensioning long screw 4-4 is moved inwards along the radial direction until the inner end of each tensioning long screw 4-4 is pressed against the limb bone of the patient; then locking the locking nuts on the tensioning long screws 4-4 to lock the tensioning long screws 4-4 to prevent displacement; at the moment, a frame structure consisting of the revolving ring 1, the inner rings 3-6 of the base ring and the plurality of first connecting rods 2 is fixed with the limb skeleton of the patient;
the two frame structures are fixed with one bone segment and the other bone segment of the broken bone of the patient respectively, so that the whole frame structure of the fixing device fixes the broken bone of the patient, and the sections of the two bone segments need to have certain butt joint accuracy, so that the inner ring 3-6 of the base ring can be driven to rotate for a certain angle along the track groove on the outer ring 3-1 of the base ring by operating the adjusting bolts 3-7 to rotate, and the torsion adjustment of the bone segments is realized.
(2) Semi-ring type application method, see fig. 9
In the using method, the fixing device is in a semi-closed semi-annular shape; specifically, the first rotating half ring 1-1-1 is detached from the second rotating half ring 1-1-2, the first stationary half ring 6-1-1 is detached from the second stationary half ring 6-1-2, the first base outer ring 3-1-1 is detached from the second base outer ring 3-1-2, and one of the inner ring bodies of the base ring inner ring 3-6 is detached, so that the half-ring type usage form shown in fig. 9 is obtained;
at this time, three tensioners 4 remain on the second rotating half ring 1-1-2, three tensioners 4 remain on the second stationary half ring 6-1-2, three tensioners 4 remain on the second base outer ring 3-1-2, and three tensioners 4 remain on the inner ring body of the base ring inner ring 3-6;
at the moment, the limb of the patient does not need to penetrate from one side to the other side of the fixing device, and only the semi-ring type frame is directly installed on the limb of the patient;
specifically, after the adjustment position is proper, firstly, the locking nuts on the tensioning long screws 4-4 of the tensioners 4 on the second stationary half ring 6-1-2 and the tensioners 4 on the second base outer ring 3-1-2 are loosened, the tensioning long screws 4-4 are driven to rotate from the outer end, and the tensioning long screws 4-4 move inwards along the radial direction until the inner ends of the tensioning long screws 4-4 are pressed against the limb bones of the patient; then locking the locking nuts on the tensioning long screws 4-4 to lock the tensioning long screws 4-4 to prevent displacement; at the moment, a frame structure consisting of the second stationary half ring 6-1-2, the second base outer ring 3-1-2 and a plurality of second connecting rods 5 is fixed with the limb bones of the patient;
then loosening the locking nuts on the tensioning long screws 4-4 of the tensioners 4 on the second rotary half ring 1-1-2 and the inner ring body of the base ring inner ring 3-6, driving the tensioning long screws 4-4 from the outer end to rotate, and moving the tensioning long screws 4-4 inwards along the radial direction until the inner ends of the tensioning long screws 4-4 are pressed against the limb bone of the patient; then locking the locking nuts on the tensioning long screws 4-4 to lock the tensioning long screws 4-4 to prevent displacement; at the moment, a frame structure consisting of the second stationary half ring 6-1-2, the inner ring body of the inner ring 3-6 of the base ring and a plurality of first connecting rods 2 is fixed with the limb bone of the patient;
the two frame structures are fixed with one bone segment and the other bone segment of the broken bone of the patient respectively, so that the whole frame structure of the fixing device fixes the broken bone of the patient, and the sections of the two bone segments need to have certain butt joint accuracy, so that the inner ring body of the inner ring 3-6 of the base ring can be driven to rotate by operating the adjusting bolt 3-7 to rotate by a certain angle along the track groove on the outer ring 3-1-2 of the second base, and the torsion adjustment of the bone segments is realized.
Compared with the two using modes, the former using mode has better protection effect on the limbs of the patient, the latter using mode is more convenient to operate, and which specific using mode is adopted can be determined according to a specific using scene.
Claims (8)
1. An adjustable fixing device for trauma orthopedics is characterized in that: the tensioner comprises a base ring (3) positioned in the middle, a rotary ring (1) and a fixed ring (6) positioned on two sides, wherein a plurality of tensioners (4) are respectively arranged on the rotary ring (1), the base ring (3) and the fixed ring (6); the base ring (3) comprises a base ring outer ring (3-1) and a base ring inner ring (3-6) which is positioned on the inner side of the base ring outer ring (3-1) and takes the base ring outer ring (3-1) as a track, the base ring inner ring (3-6) is a toothed ring with teeth on the outer side edge, an adjusting bolt (3-7) with a gear in the middle is further installed on the base ring outer ring (3-1), the adjusting bolt (3-7) is in meshing transmission with the teeth on the outer side edge of the base ring inner ring (3-6), and each tensioner (4) on the base ring (3) is installed and fixed on the base ring outer ring (3-1) and the base ring inner ring (3-6); the rotating ring (1) comprises a rotating ring body (1-1), the fixing ring (6) comprises a fixing ring body (6-1), a plurality of first connecting rods (2) are arranged between the inner ring (3-6) of the base ring and the rotating ring body (1-1), a plurality of second connecting rods (5) are arranged between the outer ring (3-1) of the base ring and the fixing ring body (6-1), each first connecting rod (2) and each second connecting rod (5) are threaded rods, the outer end of each first connecting rod (2) penetrates through a connecting hole formed in the rotating ring body (1-1) and is locked by a nut, the outer end of each second connecting rod (5) penetrates through a connecting hole formed in the fixing ring body (6-1) and is locked by a nut, the inner end of each first connecting rod (2) penetrates through a connecting hole formed in the inner ring (3-6) of the base ring and is locked by a nut, the inner end of each second connecting rod (5) penetrates through a connecting hole formed in the outer ring (3-1) of the base ring and is locked by a lock nut;
the slewing ring body (1-1) comprises a first slewing half ring (1-1-1) and a second slewing half ring (1-1-2) which are in butt joint connection, wherein the first slewing half ring and the second slewing half ring are in lap joint at the butt joint end parts and are fixedly connected by adopting slewing ring bolts (1-1-3); the fixing ring body (6-1) comprises a first fixing half ring (6-1-1) and a second fixing half ring (6-1-2) which are in butt joint connection, and the first fixing half ring and the second fixing half ring are overlapped at the butt joint end and fixedly connected by a fixing ring bolt (6-1-3);
the outer ring (3-1) of the base ring comprises a first base outer ring (3-1-1) and a second base outer ring (3-1-2) which are in butt joint connection, and the two are overlapped and fixedly connected at the butt joint end part; the inner ring (3-6) of the base ring comprises two inner ring bodies which are in butt joint and are overlapped at the butt joint end.
2. The adjustable fixing device for trauma orthopedics according to claim 1, characterized in that: the tensioner (4) comprises a fixed base (4-5) and a movable base (4-2) which moves inwards or outwards along the radial direction of the fixed base (4-5), and a tensioning long screw (4-4) is fixedly arranged on the movable base (4-2).
3. The adjustable fixing device for trauma orthopedics according to claim 2, characterized in that: a groove is arranged at the middle position of the bottom of the movable base (4-2), and the top of the fixed base (4-5) falls into the groove; an adjusting screw rod (4-1) with an adjusting end at the outer end is arranged in the groove of the movable base (4-2), a threaded hole is arranged on the fixed base (4-5), and the middle part of the adjusting screw rod (4-1) is positioned in the threaded hole.
4. The adjustable fixing device for trauma orthopedics according to claim 3, characterized in that: the tensioning long screw (4-4) comprises a screw section with a tip at the inner end and a threaded rod section with external threads, a mounting hole is formed in the movable base (4-2), and the threaded rod section of the tensioning long screw (4-4) is located in the mounting hole and locked by an inner locking nut and an outer locking nut.
5. The adjustable fixing device for trauma orthopedics according to claim 4, characterized in that: two of the tensioners (4) on the base ring (3) are positioned at the overlapping position of the first base outer ring (3-1-1) and the second base outer ring (3-1-2), and the fixed bases (4-5) of the two tensioners (4) are fixedly connected with the overlapping position of the two base outer rings by adopting mounting bolts (4-3).
6. The adjustable fixing device for trauma orthopedics according to claim 5, characterized in that: a plurality of rotary ring inner connecting holes (1-4) are formed in the ring bodies of the first rotary half ring (1-1-1) and the second rotary half ring (1-1-2), and a plurality of rotary ring wing plates (1-2) with rotary ring outer connecting holes (1-5) are respectively arranged on the outer sides of the ring bodies of the first rotary half ring (1-1-1) and the second rotary half ring (1-1-2); the ring bodies of the first fixed half ring (6-1-1) and the second fixed half ring (6-1-2) are respectively provided with a plurality of fixed ring inner connecting holes (6-4), and the outer sides of the ring bodies of the first fixed half ring (6-1-1) and the second fixed half ring (6-1-2) are respectively provided with a plurality of fixed ring wing plates (6-2) with fixed ring outer connecting holes (6-5).
7. The adjustable fixing device for trauma orthopedics according to claim 6, characterized in that: the outer sides of the ring bodies of the first base outer ring (3-1-1) and the second base outer ring (3-1-2) are respectively provided with a plurality of base ring wing plates (3-2) with outer ring connecting holes (3-5), and two inner ring bodies of the base ring inner ring (3-6) are respectively provided with a plurality of inner ring connecting holes (3-4).
8. The adjustable fixing device for trauma orthopedics according to claim 7, characterized in that: the upper end of each first connecting rod (2) is positioned in the connecting hole (1-4) in the rotary ring, the lower end is positioned in the connecting hole (3-4) in the inner ring, the lower end of each second connecting rod (5) is positioned in the connecting hole (6-5) outside the fixed ring, and the upper end is positioned in the connecting hole (3-5) of the outer ring.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110188174.5A CN112998831B (en) | 2021-02-19 | 2021-02-19 | Adjustable fixing device for trauma orthopedics |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110188174.5A CN112998831B (en) | 2021-02-19 | 2021-02-19 | Adjustable fixing device for trauma orthopedics |
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Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2388925Y (en) * | 1999-10-09 | 2000-07-26 | 张德清 | Semicircular fracture reduction fixator |
| CN2722845Y (en) * | 2004-09-17 | 2005-09-07 | 曹士鑫 | Bone corrector |
| US8430878B2 (en) * | 2009-11-13 | 2013-04-30 | Amei Technologies, Inc. | Adjustable orthopedic fixation system |
| CN201912205U (en) * | 2011-01-12 | 2011-08-03 | 长沙高新开发区长福医疗器械有限公司 | External bone fixing device |
| US9445841B2 (en) * | 2014-12-10 | 2016-09-20 | Texas Scottish Rite Hospital For Children | Wire tensioner tip for use with wire fixation bolt |
| CN204971527U (en) * | 2015-06-06 | 2016-01-20 | 明新月 | External fixation frame of treatment capitulum radii old dislocation |
| CN108742804B (en) * | 2018-06-05 | 2020-04-07 | 天津大学 | Parallel external fixing support for fracture reduction |
| CN109820583B (en) * | 2019-04-11 | 2024-02-13 | 山东威高骨科材料股份有限公司 | Three-dimensional traction reduction and fixing device for minimally invasive limb fracture |
| CN211023023U (en) * | 2019-07-17 | 2020-07-17 | 昆明青莲医疗器械有限公司 | Calcaneus ring, calcaneus external fixing device and calcaneus orthodontic device |
| CN111839694A (en) * | 2020-07-27 | 2020-10-30 | 北京信息科技大学 | Centering and rotating device for Ilizarov external bone fixator |
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