CN114681029A - Split type ankle joint external fixation device - Google Patents
Split type ankle joint external fixation device Download PDFInfo
- Publication number
- CN114681029A CN114681029A CN202011641029.XA CN202011641029A CN114681029A CN 114681029 A CN114681029 A CN 114681029A CN 202011641029 A CN202011641029 A CN 202011641029A CN 114681029 A CN114681029 A CN 114681029A
- Authority
- CN
- China
- Prior art keywords
- connecting block
- calcaneus
- talus
- split type
- support
- Prior art date
- 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.)
- Pending
Links
- 210000000544 articulatio talocruralis Anatomy 0.000 title claims abstract description 23
- 210000000459 calcaneus Anatomy 0.000 claims abstract description 48
- 210000004233 talus Anatomy 0.000 claims abstract description 48
- 210000003423 ankle Anatomy 0.000 claims 8
- 210000002303 tibia Anatomy 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 206010003246 arthritis Diseases 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 210000000845 cartilage Anatomy 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 210000002683 foot Anatomy 0.000 description 1
- 230000009916 joint effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Classifications
-
- 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
- A61B2017/564—Methods for bone or joint treatment
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
A split type ankle joint external fixing device comprises a support, a calcaneus connecting block, a talus connecting block and a pin shaft, wherein two support lugs are arranged at the lower end of the support, and coaxial through holes are formed in the two support lugs; the calcaneus connecting block and the talus connecting block are movably connected to the pin shaft and are mounted on two lugs of the support through the pin shaft, at least one screw hole is formed in the calcaneus connecting block and the talus connecting block, and the fixing screw penetrates through the screw hole. The invention can ensure that the rotation center of the fixing device is consistent with the rotation center of the ankle joint of a patient, has large adjustment range, can randomly adjust the relative angle of the calcaneus connecting block and the talus connecting block, can ensure that the fixing screws can be conveniently and respectively fixed on the calcaneus and the talus, reduces the operation difficulty, and greatly improves the operation success rate and the operation quality.
Description
Technical Field
The invention relates to a medical appliance, in particular to an external fixation ankle joint device.
Background
The ankle joint is one of the parts which are easy to be injured in movement, if the ankle joint is in the condition of fracture and the like, the injured part needs to be fixed, the injured part is convenient to recover, the external fixed ankle joint hinge device is an important device which crosses the ankle joint to connect the tibia and the foot, and the installation requirement of the external fixed ankle joint hinge device meets the requirement that the hinge rotation center of the fixed joint is consistent with the rotation center (the talus center) of the ankle joint of a patient; therefore, the external fixation screw of the hinge body needs to meet the requirements that 1 is fixed on the calcaneus body and 1 is fixed on the talus head area. Present single armed external fixation ankle joint hinge is mostly whole casting, and calcaneum fixed part and talus fixed part are a whole promptly, and not only length is fixed unadjustable, and the relative angle of the two also can not be adjusted, and the rotation angle of whole relative support is within 45, and the adjustment range is very limited. The dislocation of joint hinge rotation center often appears during the installation in the operation, and hinge body part screw often can't bore talus head area, leads to patient's ankle joint line of force just, and the joint activity is unusual. The abrasion of the ankle joint cartilage is caused in the later stage, arthritis is formed, the screws are stressed abnormally, the conditions of screw loosening, fracture and the like occur, and the operation fails.
Disclosure of Invention
The invention aims to provide a split type ankle joint external fixing device which can ensure that the rotation center of a hinge is consistent with that of an ankle joint of a patient, has large length and angle adjustment range, can ensure that fixing screws can be conveniently and respectively fixed on a calcaneus and a talus, and greatly improves the success rate of operations.
A split type ankle joint external fixing device comprises a support, a calcaneus connecting block, a talus connecting block and a pin shaft, wherein two support lugs are arranged at the lower end of the support, and coaxial through holes are formed in the two support lugs; the calcaneus connecting block and the talus connecting block are movably connected to the pin shaft and are mounted on the two lugs of the support through the pin shaft, and at least one screw hole is formed in the calcaneus connecting block and the talus connecting block.
Furthermore, one end of the pin shaft is provided with a thread, and a locking nut is installed on the thread.
Furthermore, the calcaneus connecting block and the talus connecting block are provided with slits parallel to the screw holes and bolt holes perpendicular to the screw holes, and fastening bolts are installed in the bolt holes.
Furthermore, the calcaneus connecting block is provided with 1-4 screw holes.
Preferably, the calcaneus connecting block is provided with three screw holes.
Preferably, the length of the calcaneus connecting block is 3-5 cm.
Furthermore, the talus connecting block is provided with 1-3 screw holes.
Preferably, the talus junction block has two screw holes therein.
Preferably, the length of the talus connecting block is 1.5-2.5 cm.
Further, the fixing bolt is arranged between the two screw holes.
The invention can ensure that the rotation center of the fixing device is consistent with the rotation center of the ankle joint of a patient, has large adjustment range, can freely select the relative angle of the calcaneus connecting block and the talus connecting block, can ensure that the fixing screws can be conveniently and respectively fixed on the calcaneus and the talus, reduces the operation difficulty, and greatly improves the operation success rate and the operation quality.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a bottom view of the structure shown in fig. 1.
Fig. 3 is a bottom view of another embodiment of the structure shown in fig. 1.
In the figure: 1-talus connecting block, 2-pin shaft, 3-calcaneus connecting block, 4-screw hole, 5-fastening bolt, 6-seam, 7-bracket, 8-locking nut and 9-bracket double lug.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings.
As shown in fig. 1-3, the split type external ankle joint fixing device comprises a bracket 7, a calcaneus connecting block 3, a talus connecting block 1 and a pin shaft 2, wherein a bracket double lug 9 is arranged at the lower end of the bracket 7, and a coaxial through hole is formed in the bracket double lug 9; calcaneus connecting block 3 and talus connecting block 1 are movably connected to pin shaft 2 and are mounted on two lugs 9 of the support through pin shaft 2, at least one screw hole 4 is formed in each of calcaneus connecting block 3 and talus connecting block 1, and fixing screws penetrate through the screw holes 4 and are connected to calcaneus or talus. Fig. 2 shows that the calcaneus connecting block 3 and the talus connecting block 1 are arranged in the support double lugs 9 at the lower end of the support 7 in a staggered mode, fig. 3 shows that the talus connecting block 1 is provided with a fork at the connecting pin shaft 2, and the calcaneus connecting block 3 is located in the fork of the talus connecting block 1. Of course, the calcaneus connecting block 3 can be forked at the position connected with the pin shaft 2, and the talus connecting block 1 is positioned in the forked part of the calcaneus connecting block 3.
Furthermore, a thread is arranged at one end of the pin shaft 2, and a locking nut 8 is arranged on the thread. After the relative positions of the calcaneus connecting block 3 and the talus connecting block 1 are adjusted in place, the locking nut 8 is tightly locked, and the relative position relation of the calcaneus connecting block and the talus connecting block can be fixed.
Furthermore, the calcaneus connecting block 3 and the talus connecting block 1 are provided with a slit 6 parallel to the screw hole 4 and a bolt hole perpendicular to the screw hole 4, and the bolt hole is internally provided with a fastening bolt 5. After the fixing screw passes through the screw holes 4 on the calcaneus connecting block 3 and the talus connecting block 1 and is connected to the calcaneus or the talus, the fastening bolt 5 in the bolt hole is tightened, and then the fixing screw can be fixed on the calcaneus connecting block 3 and the talus connecting block 1.
Furthermore, the calcaneus connecting block 3 is provided with 1-4 screw holes 4. The screw hole 4 is selected according to the position of the calcaneus of the patient, and the fixing screw is connected to the calcaneus through the selected screw hole 4.
Preferably, the calcaneus junction block 3 has three screw holes 4.
Preferably, the length of the calcaneus connecting block 3 is 3-5 cm.
Furthermore, the talus connecting block 1 is provided with 1-3 screw holes 4. A screw hole 4 is selected according to the patient's talus position and a set screw is attached to the talus through the selected screw hole 4.
Preferably, the talar junction block 1 has two screw holes 4.
Preferably, the length of the talus connecting block 1 is 1.5-2.5 cm.
Further, the fastening bolt 5 is disposed between the two screw holes 4.
During the use, align unanimous with patient's ankle joint rotation center with the round pin axle of this device, fix support 7 on patient's shin bone, position according to patient calcaneus and talus, adjustment calcaneus connecting block 3 and talus connecting block 1's angle, select the screw hole 4 that the optimal connection corresponds respectively, set screw passes selected screw hole 4 respectively and connects on calcaneus and talus, and tightly follow fastening bolt 5 on bone connecting block 3 and the talus connecting block 1, last and lock nut 8 on the tight pin axle 2, just so can fix patient's shin bone well, the calcaneus, the relative position of talus, connect reliably, can guarantee simultaneously that the round pin axle of this device is unanimous with ankle joint rotation center, be favorable to the patient to be recovered. Simple operation, greatly reduces the operation difficulty, and improves the operation success rate and the operation quality.
The present invention is capable of other embodiments, and various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a split type ankle joint external fixation device which characterized in that: the calcaneus bone connecting device comprises a support (7), a calcaneus connecting block (3), an talus connecting block (1) and a pin shaft (2), wherein two support lugs (9) are arranged at the lower end of the support (7), and coaxial through holes are formed in the two support lugs (9); the calcaneus connecting block (3) and the talus connecting block (1) are movably connected to the pin shaft (2) and are mounted on two lugs (9) of the support through the pin shaft (2), and at least one screw hole (4) is formed in the calcaneus connecting block (3) and the talus connecting block (1).
2. The split type ankle external fixing device according to claim 1, wherein: and one end of the pin shaft 2 is provided with a thread, and a locking nut 8 is arranged on the thread.
3. The split type ankle external fixing device according to claim 1, wherein: the calcaneus connecting block (3) and the talus connecting block (1) are provided with a seam (6) parallel to the screw hole (4), a bolt hole perpendicular to the screw hole (4) is formed, and a fastening bolt (5) is installed in the bolt hole.
4. The split type ankle external fixing device according to claim 1, wherein: the calcaneus connecting block (3) is provided with 1-4 screw holes (4).
5. The split type ankle joint external fixing device according to claim 4, wherein: the calcaneus connecting block (3) is provided with three screw holes (4).
6. The split type ankle external fixing device according to claim 4, wherein: the length of the calcaneus connecting block (3) is 3-5 cm.
7. The split type ankle external fixing device according to claim 1, wherein: the talus connecting block (1) is provided with 1-3 screw holes (4).
8. The split type ankle external fixing device according to claim 7, wherein: the talus connecting block (1) is provided with two screw holes (4).
9. The split type ankle external fixing device according to claim 7, wherein: the length of the talus connecting block (1) is 1.5-2.5 cm.
10. The split type ankle external fixing device according to any one of claims 3 to 7, wherein: the fastening bolt (5) is arranged between the two screw holes (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011641029.XA CN114681029A (en) | 2020-12-31 | 2020-12-31 | Split type ankle joint external fixation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011641029.XA CN114681029A (en) | 2020-12-31 | 2020-12-31 | Split type ankle joint external fixation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114681029A true CN114681029A (en) | 2022-07-01 |
Family
ID=82136399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011641029.XA Pending CN114681029A (en) | 2020-12-31 | 2020-12-31 | Split type ankle joint external fixation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114681029A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2895664A1 (en) * | 2005-12-29 | 2007-07-06 | Fournitures Hospitalieres Ind | Transcalcaneal screw for maintaining nail during arthrodesis of ankle, has threaded portion cooperating with tapping of opening of nail, where screwing of portion continues until tapered portion is encased in inlet of funnel |
| US20100010490A1 (en) * | 2008-07-09 | 2010-01-14 | Amei Technologies, Inc. | Ankle arthrodesis nail and outrigger assembly |
| US20120215223A1 (en) * | 2010-12-18 | 2012-08-23 | The Brigham And Women's Hospital, Inc. | Medical Devices for Use During Ankle Fusion Surgery |
| US20180085151A1 (en) * | 2015-04-16 | 2018-03-29 | Texas Tech University System | Ankle (Tibio-Talar) Fusion Nail |
| CN109938814A (en) * | 2019-02-27 | 2019-06-28 | 陈伟 | Irreducible intertrochanteric fracture resets grasping device |
| CN215079471U (en) * | 2020-12-31 | 2021-12-10 | 四川省骨科医院 | Split type ankle joint external fixation device |
-
2020
- 2020-12-31 CN CN202011641029.XA patent/CN114681029A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2895664A1 (en) * | 2005-12-29 | 2007-07-06 | Fournitures Hospitalieres Ind | Transcalcaneal screw for maintaining nail during arthrodesis of ankle, has threaded portion cooperating with tapping of opening of nail, where screwing of portion continues until tapered portion is encased in inlet of funnel |
| US20100010490A1 (en) * | 2008-07-09 | 2010-01-14 | Amei Technologies, Inc. | Ankle arthrodesis nail and outrigger assembly |
| US20120215223A1 (en) * | 2010-12-18 | 2012-08-23 | The Brigham And Women's Hospital, Inc. | Medical Devices for Use During Ankle Fusion Surgery |
| US20180085151A1 (en) * | 2015-04-16 | 2018-03-29 | Texas Tech University System | Ankle (Tibio-Talar) Fusion Nail |
| CN109938814A (en) * | 2019-02-27 | 2019-06-28 | 陈伟 | Irreducible intertrochanteric fracture resets grasping device |
| CN215079471U (en) * | 2020-12-31 | 2021-12-10 | 四川省骨科医院 | Split type ankle joint external fixation device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4269067B2 (en) | Improved external fixation device for fractures, especially ankle fractures | |
| CN215079471U (en) | Split type ankle joint external fixation device | |
| US5057109A (en) | Fixing instruments for spinal surgery | |
| US9522023B2 (en) | Orthopedic plate, orthopedic device, method of coupling bone segments, and method of assembling an orthopedic plate | |
| US5540686A (en) | Apparatus for lengthening bones | |
| US20160331430A1 (en) | Osteotomy opening jack | |
| US9861402B2 (en) | System and method for treating a fractured bone | |
| CN102149343A (en) | Short pin for taking care of epiphysis fractures | |
| JP2009513268A (en) | Bone fixation assembly and bushes and screws used therewith | |
| US20170348030A1 (en) | Orthopedic plate, orthopedic device, method of coupling bone segments, and method of assembling an orthopedic plate | |
| CN114681029A (en) | Split type ankle joint external fixation device | |
| CN204092147U (en) | A kind of patella fixture | |
| CN210354880U (en) | Bone fixing system for 8-shaped cerclage for inferior tibiofibular separation | |
| CN209253081U (en) | PFNA proximal femoral nail instrument | |
| WO2021076460A1 (en) | Apparatus for stablization of a bone fracture site | |
| CN103932778A (en) | Handle for kneecap upper admission passage tibia interlocking intramedullary nail system | |
| CN112370131B (en) | Tibia orthopedic external fixing support | |
| CN213156216U (en) | Accurate high-order bone director of cutting of shin bone | |
| CN208081289U (en) | A kind of intermediate approach posterior cruciate ligament reconstruction locator | |
| TWM560290U (en) | Knee external fixation device | |
| CN211834667U (en) | Femoral neck fracture reduction device | |
| CN108852493B (en) | Novel femur neck locking and pressurizing bone fracture plate | |
| CN202218911U (en) | Minimal invasive combined pressurizing and locking bone fracture plate for trochanter comminuted fracture and femoral neck fracture | |
| CN210521078U (en) | Multidirectional locking intramedullary nail | |
| CN217186386U (en) | High-position bone fracture plate for inner side of tibia |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |