CN107550552B - Calcaneus fixed bolster - Google Patents
Calcaneus fixed bolster Download PDFInfo
- Publication number
- CN107550552B CN107550552B CN201710902499.9A CN201710902499A CN107550552B CN 107550552 B CN107550552 B CN 107550552B CN 201710902499 A CN201710902499 A CN 201710902499A CN 107550552 B CN107550552 B CN 107550552B
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- China
- Prior art keywords
- positioning rod
- sliding block
- driving wheel
- guide hole
- base
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- 210000000459 calcaneus Anatomy 0.000 title claims abstract description 28
- 230000005540 biological transmission Effects 0.000 claims abstract description 22
- 238000003780 insertion Methods 0.000 claims description 23
- 230000037431 insertion Effects 0.000 claims description 23
- 238000005452 bending Methods 0.000 claims description 3
- 208000010392 Bone Fractures Diseases 0.000 description 8
- 206010017076 Fracture Diseases 0.000 description 8
- 206010016970 Foot fracture Diseases 0.000 description 3
- 210000000988 bone and bone Anatomy 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 210000001137 tarsal bone Anatomy 0.000 description 2
- 208000002658 Intra-Articular Fractures Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000000474 heel Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Accommodation For Nursing Or Treatment Tables (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Abstract
The invention discloses a calcaneus fixing support which comprises a base, wherein a guide structure is arranged on the base, the guide structure comprises a channel arranged in the base, a gear transmission group is arranged in the channel, a first guide hole is formed between the top surface of the channel and a driving wheel, a first sliding block which vertically slides is arranged on the base, a first rack is arranged on the first sliding block, a second sliding block is arranged at the top of the first sliding block in a sliding manner, a second guide hole is arranged on the second sliding block, a limiting plate is arranged at the top of the base, a third sliding block is arranged below the gear transmission group in a sliding manner, a second rack is arranged at the upper end of the third sliding block, a third guide hole is arranged on the third sliding block, a third rack is arranged on the first positioning rod, and the first positioning rod, the second positioning rod and the third positioning rod are mutually inserted to form a triangular positioning structure. The calcaneus fixing support is firm in fixation, is not easy to shift, and can be positioned according to the sizes and positions of different calcaneus of different patients.
Description
Technical Field
The invention belongs to the technical field of medical appliances, and particularly relates to a calcaneus fixing bracket.
Background
Calcaneus fracture is the most common fracture of tarsal bones, accounting for 60% of the fracture of tarsal bones and accounting for 2% of the fracture of the whole body, and the fracture is difficult to treat and has more sequela. Most calcaneus fractures are intra-articular fractures accompanied by posterior joint surface collapse, and strike the outer side of the calcaneus and the weak central triangular region, compressing and losing the bones of the central triangular region of the calcaneus body. The calcaneus medial load-carrying process is a special structure of the calcaneus, plays an important role in supporting body mass and transmitting stress, and forms a stronger medial bearing column together with the medial wall of the calcaneus. Because the calcaneus apophysis is less displaced when fractured, the lateral tuberosity fracture blocks are often pulled clinically to match the apophysis fracture blocks, so that good fracture reduction is achieved.
The common calcaneus fracture generally adopts a pressurizing screw for internal fixation after the bone is reset by cutting the heel part, but the fracture part is not firmly positioned by adopting the fixing mode, and is easy to shift.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the calcaneus fixing bracket which is firmly fixed, is not easy to shift and can be positioned according to different sizes and positions of calcaneus of different patients.
In order to solve the technical problems, the invention is solved by the following technical scheme: the calcaneus fixing support comprises a base, wherein a guide structure is arranged on the base, the guide structure comprises a channel arranged in the base, a gear transmission group is arranged in the channel, the gear transmission group comprises a driving wheel, a first driving wheel, a second driving wheel and a third driving wheel, the first driving wheel is meshed with the driving wheel, the second driving wheel is meshed with the first driving wheel, the third driving wheel is meshed with the driving wheel, a first guide hole is formed between the top surface of the channel and the driving wheel, a first sliding block which vertically slides is arranged on the base, a first rack matched with the second driving wheel is arranged on the first sliding block, a second sliding block is arranged on the top of the first sliding block, a second guide hole is arranged on the second sliding block, a limiting plate is arranged on the top of the base, a third sliding block is arranged below the third driving wheel, a second rack matched with the third driving wheel is arranged at the upper end of the third sliding block, a third guide hole is arranged on the third sliding block, a first positioning rod is inserted into the third positioning rod is arranged on the third positioning rod, a second positioning rod is arranged on the positioning rod is inserted into the third positioning rod, and a positioning rod is arranged on the positioning rod is inserted into the positioning rod; the direction of the first guide hole is parallel to the sliding direction of the third sliding block, the transmission ratio of the driving wheel to the third driving wheel is 1, the direction of the first guide hole is perpendicular to the sliding direction of the first sliding block, and the transmission ratio of the driving wheel to the third driving wheel is the tangent value of the included angle between the first positioning rod and the second positioning rod; when the first positioning rod is inserted into the first guide hole, the first sliding block and the third sliding block start to slide from initial positions, and when the second sliding block slides to be attached to the limiting plate, the second guide hole is aligned with the second positioning rod insertion hole, and the third guide hole is aligned with the third positioning rod insertion hole; the first positioning rod, the second positioning rod and the third positioning rod are mutually inserted to form a triangular positioning structure. When the structure is used, the first positioning rod is inserted from the first guide hole to drive the driving wheel to rotate, the gear transmission group drives the first sliding block and the third sliding block to slide, the second sliding block slides to be attached to the limiting plate when the first positioning rod slides to a designated position, the third positioning rod and the second positioning rod penetrate into the first sliding block at the moment, triangular positioning of the positioning rod is completed, and the first positioning rod insertion direction is parallel to the third sliding block, the transmission ratio of the driving wheel and the third transmission wheel is 1, so that the third guide hole is always aligned with the third positioning rod insertion hole, the length of the third positioning rod insertion is also fixed, the second positioning rod is ensured to be inserted into the first positioning rod insertion hole, the calcaneus fixing support is fixed firmly, displacement is difficult to occur, and the positioning can be performed according to different calcaneus sizes and positions of different patients.
In the above technical solution, preferably, the initial position of the first slider is that the bottom of the first slider is flush with the bottom of the base. This structure makes the initial position of the first slider easier to position when the first positioning rod is inserted.
In the above technical solution, preferably, the two sides of the base are both provided with the guiding structures, and the two guiding structures are symmetrical according to the central plane of the base. By adopting the structure, two parallel triangular positioning structures can be formed.
In the above technical scheme, preferably, the front end of the third slider is bent and connected with a fourth slider, a plurality of fourth guide holes are formed in the fourth slider, a plurality of fourth positioning rod insertion holes are formed in the first positioning rod and the third positioning rod, when the first positioning rod, the second positioning rod and the third positioning rod are mutually inserted to form a triangular positioning structure, a plurality of fourth guide holes are respectively aligned with a plurality of fourth positioning rod insertion holes, and a fourth positioning rod is inserted into the fourth positioning rod insertion holes to fix two groups of triangular positioning structures. By adopting the structure, two parallel triangular positioning structures are supported by the fourth positioning rod, and the calcaneus fixing support is more firmly fixed by adopting the structure.
In the above technical solution, preferably, the initial position of the third slider is that a bending position at the front end of the third slider is attached to the base. This structure makes the initial position of the third slider easier to position when the first positioning rod is inserted.
Compared with the prior art, the invention has the following beneficial effects: when the structure is used, the first positioning rod is inserted from the first guide hole to drive the driving wheel to rotate, the gear transmission group drives the first sliding block and the third sliding block to slide, the second sliding block slides to be attached to the limiting plate when the first positioning rod slides to the appointed position, the third positioning rod and the second positioning rod penetrate into the first sliding block at the moment, triangular positioning of the positioning rod is completed, the calcaneus fixing support is firmly fixed, displacement is not easy to occur, and the calcaneus fixing support can be positioned according to different calcaneus sizes and positions of different patients.
Drawings
Fig. 1 is a schematic front view of an initial state of an embodiment of the present invention.
Fig. 2 is a schematic front view of the first positioning rod according to the embodiment of the invention after insertion.
Fig. 3 is a schematic top view of an initial state of an embodiment of the present invention.
Fig. 4 is a schematic cross-sectional view of an embodiment of the present invention.
Fig. 5 is a schematic structural view of the first positioning rod, the second positioning rod, and the third positioning rod according to the embodiment of the present invention after insertion.
Fig. 6 is a schematic diagram of an inserting structure of a first positioning rod, a second positioning rod, and a third positioning rod in an embodiment of the present invention.
Fig. 7 is a schematic structural diagram of the present invention in use.
Detailed Description
The invention is described in further detail below with reference to the attached drawings and detailed description: referring to fig. 1 to 7, a calcaneus fixing bracket comprises a base 1, wherein a guide structure 2 is arranged on the base 1, the guide structure 2 comprises a channel 3 arranged in the base 1, a gear transmission group 4 is arranged in the channel 3, the gear transmission group 4 comprises a driving wheel 41, a first driving wheel 42, a second driving wheel 43 and a third driving wheel 44, the first driving wheel 41 is meshed with the driving wheel 4, the second driving wheel 43 is meshed with the first driving wheel 42, the third driving wheel 44 is meshed with the driving wheel 41, a first guide hole 51 is formed between the top surface of the channel 3 and the driving wheel 41, a first sliding block 6 which vertically slides is arranged on the base 1, a first rack 61 which is matched with the second driving wheel 43 is arranged on the first sliding block 6, a second sliding block 7 is arranged on the top of the first sliding block 6 in a sliding way, a second guide hole 52 is arranged on the second sliding block 7, a limiting plate 11 is arranged on the top of the base 1, a third sliding block 8 is arranged below the third driving wheel 44 in a sliding way, a second rack 81 which is matched with the third driving wheel 44 is arranged at the upper end of the third sliding block 8, a third guide hole 53 is arranged on the third sliding block 8, the first guide hole 51 is internally provided with a first positioning rod 91, the second guide hole 52 is internally provided with a second positioning rod 92, the third guide hole 53 is internally provided with a third positioning rod 93, the first positioning rod 91 is provided with a third rack 911 matched with the driving wheel 41, the first positioning rod 91 is provided with a second positioning rod jack 912 and a third positioning rod jack 913, the third positioning rod 93 is provided with a first positioning rod jack 931, the orientation of the first guide hole 51 is parallel to the sliding direction of the third sliding block 8, the transmission ratio of the driving wheel 41 to the third driving wheel 44 is 1, the direction of the first guide hole 51 is perpendicular to the sliding direction of the first slider 6, and the transmission ratio of the driving wheel 41 to the third transmission wheel 44 is the tangent value of the included angle between the first positioning rod 91 and the second positioning rod 92; when the first positioning rod 91 is inserted into the first guide hole 51, the first slider 6 and the third slider 8 start to slide from the initial positions, and when the second slider 7 slides to be in contact with the limiting plate 11, the second guide hole 52 is aligned with the second positioning rod insertion hole 912, and the third guide hole 53 is aligned with the third positioning rod insertion hole 913; the first positioning rod 91, the second positioning rod 92 and the third positioning rod 93 are mutually inserted to form a triangular positioning structure. When the structure is adopted, the first positioning rod is inserted from the first guide hole to drive the driving wheel to rotate, the gear transmission group drives the first sliding block and the third sliding block to slide, the second sliding block is slid to be attached to the limiting plate when the first positioning rod slides to a designated position, the third positioning rod and the second positioning rod penetrate into the first sliding block at the moment, the triangular positioning of the positioning rod is completed, the third guide hole is always aligned with the third positioning rod jack because the insertion direction of the first positioning rod is parallel to the third sliding block and the transmission ratio of the driving wheel to the third transmission wheel is 1, the insertion length of the third positioning rod is also fixed, the second positioning rod is ensured to be inserted into the first positioning rod jack, the calcaneus fixing support is firm in fixation, is not easy to shift, and can be positioned according to the sizes and positions of different calcaneus of different patients.
The initial position of the first slider 6 is that the bottom of the first slider 6 is flush with the bottom of the base 1. This structure makes the initial position of the first slider easier to position when the first positioning rod is inserted.
The two sides of the base 1 are respectively provided with the guide structures 2, and the two guide structures 2 are symmetrical according to the central plane of the base 1. By adopting the structure, two parallel triangular positioning structures can be formed.
The front end of the third sliding block 8 is bent and connected with a fourth sliding block 10, a plurality of fourth guide holes 101 are formed in the fourth sliding block 10, a plurality of fourth positioning rod insertion holes 94 are formed in the first positioning rod 91 and the third positioning rod 93, and when the first positioning rod 91, the second positioning rod 92 and the third positioning rod 93 are mutually inserted to form a triangular positioning structure, a plurality of fourth guide holes 101 are respectively aligned with a plurality of fourth positioning rod insertion holes 95, and a fourth positioning rod 94 is inserted into the fourth positioning rod insertion holes 95 to fix two groups of triangular positioning structures. By adopting the structure, two parallel triangular positioning structures are supported by the fourth positioning rod, and the calcaneus fixing support is more firmly fixed by adopting the structure.
The initial position of the third sliding block 8 is that the bending position of the front end of the third sliding block 8 is attached to the base 1. This structure makes the initial position of the third slider easier to position when the first positioning rod is inserted.
Claims (3)
1. A calcaneus fixed bolster, characterized in that: comprises a base (1), a guide structure (2) is arranged on the base (1), the guide structure (2) comprises a channel (3) arranged in the base (1), a gear transmission group (4) is arranged in the channel (3), the gear transmission group (4) comprises a driving wheel (41), a first driving wheel (42), a second driving wheel (43) and a third driving wheel (44), the first driving wheel (41) is meshed with the driving wheel (4), the second driving wheel (43) is meshed with the first driving wheel (42), the third driving wheel (44) is meshed with the driving wheel (41), a first guide hole (51) is formed between the top surface of the channel (3) and the driving wheel (41), a first sliding block (6) which vertically slides is arranged on the base (1), a first rack (61) which is matched with the second driving wheel (43) is arranged on the first sliding block (6), a second sliding block (7) is arranged at the top of the first sliding block (6) in a sliding manner, a second guide hole (52) is arranged on the second sliding block (7), a limiting plate (11) is arranged at the top of the base (1), a third sliding block (8) is arranged below the third driving wheel (44) in a sliding manner, a second rack (81) which is matched with the third driving wheel (44) is arranged at the upper end of the third sliding block (8), the third sliding block (8) is provided with a third guide hole (53), the first guide hole (51) is internally provided with a first positioning rod (91), the second guide hole (52) is internally provided with a second positioning rod (92), the third guide hole (53) is internally provided with a third positioning rod (93), the first positioning rod (91) is provided with a third rack (911) matched with the driving wheel (41), the first positioning rod (91) is provided with a second positioning rod jack (912) and a third positioning rod jack (913), the third positioning rod (93) is provided with a first positioning rod jack (931), the direction of the first guide hole (51) is parallel to the sliding direction of the third sliding block (8), the transmission ratio of the driving wheel (41) to the third driving wheel (44) is 1, the direction of the first guide hole (51) is perpendicular to the sliding direction of the first sliding block (6), and the transmission ratio of the driving wheel (41) to the third driving wheel (44) is the tangent value of the included angle between the first positioning rod (91) and the second positioning rod (92); when the first positioning rod (91) is inserted into the first guide hole (51), the first sliding block (6) and the third sliding block (8) start sliding from initial positions, when the second sliding block (7) slides to be attached to the limiting plate (11), the second guide hole (52) is aligned with the second positioning rod insertion hole (912), and the third guide hole (53) is aligned with the third positioning rod insertion hole (913); the first locating rod (91), the second locating rod (92) and the third locating rod (93) are mutually inserted to form a triangular locating structure, the initial position of the first sliding block (6) is that the bottom of the first sliding block (6) is flush with the bottom of the base (1), the two sides of the base (1) are respectively provided with the guide structures (2), and the two guide structures (2) are symmetrical according to the central plane of the base (1).
2. A calcaneus fixation bracket according to claim 1, wherein: the front end of the third sliding block (8) is bent and connected with a fourth sliding block (10), a plurality of fourth guide holes (101) are formed in the fourth sliding block (10), a plurality of fourth positioning rod insertion holes (94) are formed in the first positioning rod (91) and the third positioning rod (93), when the first positioning rod (91), the second positioning rod (92) and the third positioning rod (93) are mutually inserted to form a triangular positioning structure, the fourth guide holes (101) are respectively aligned with the fourth positioning rod insertion holes (95), and the fourth positioning rods (94) are inserted into the fourth positioning rod insertion holes (95) to fix the two groups of triangular positioning structures.
3. A calcaneus fixation bracket according to claim 2, wherein: the initial position of the third sliding block (8) is that the bending position of the front end of the third sliding block (8) is attached to the base (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710902499.9A CN107550552B (en) | 2017-09-29 | 2017-09-29 | Calcaneus fixed bolster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710902499.9A CN107550552B (en) | 2017-09-29 | 2017-09-29 | Calcaneus fixed bolster |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107550552A CN107550552A (en) | 2018-01-09 |
| CN107550552B true CN107550552B (en) | 2024-05-24 |
Family
ID=60984133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710902499.9A Active CN107550552B (en) | 2017-09-29 | 2017-09-29 | Calcaneus fixed bolster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107550552B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5578038A (en) * | 1992-06-18 | 1996-11-26 | Slocum; D. Barclay | Jig for use in osteotomies |
| CN103690247A (en) * | 2014-01-10 | 2014-04-02 | 北京航空航天大学 | Bi-planar locating device for femoral neck hollow rivet implanting operation |
| CN205144694U (en) * | 2015-10-30 | 2016-04-13 | 天津市新中医疗器械有限公司 | Skull ring stick combination external fixator |
| CN208492263U (en) * | 2017-09-29 | 2019-02-15 | 宁波市第六医院 | One kind is with bone fixation bracket |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10869798B2 (en) * | 2006-05-05 | 2020-12-22 | Warsaw Orthopedic, Inc. | Patient positioning support apparatus with virtual pivot-shift pelvic pads, upper body stabilization and fail-safe table attachment mechanism |
-
2017
- 2017-09-29 CN CN201710902499.9A patent/CN107550552B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5578038A (en) * | 1992-06-18 | 1996-11-26 | Slocum; D. Barclay | Jig for use in osteotomies |
| CN103690247A (en) * | 2014-01-10 | 2014-04-02 | 北京航空航天大学 | Bi-planar locating device for femoral neck hollow rivet implanting operation |
| CN205144694U (en) * | 2015-10-30 | 2016-04-13 | 天津市新中医疗器械有限公司 | Skull ring stick combination external fixator |
| CN208492263U (en) * | 2017-09-29 | 2019-02-15 | 宁波市第六医院 | One kind is with bone fixation bracket |
Non-Patent Citations (2)
| Title |
|---|
| 俯卧位手术头部固定牵引架的研制及临床应用;常庚申, 裴会芳;实用护理杂志;20010401(第04期);全文 * |
| 跟骨关节内骨折中载距突骨折移位发生率及对手术复位的影响;张开;苗晓燕;杨晶;申晓宇;闫金成;;河北医药;20161226(第24期);全文 * |
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| Publication number | Publication date |
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| CN107550552A (en) | 2018-01-09 |
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