CN105411659B - A kind of external fixator for orthopedics dep - Google Patents
A kind of external fixator for orthopedics dep Download PDFInfo
- Publication number
- CN105411659B CN105411659B CN201510895686.XA CN201510895686A CN105411659B CN 105411659 B CN105411659 B CN 105411659B CN 201510895686 A CN201510895686 A CN 201510895686A CN 105411659 B CN105411659 B CN 105411659B
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- Prior art keywords
- bulb
- hole
- nail
- shaped folder
- support bar
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- 230000000399 orthopedic effect Effects 0.000 title claims abstract description 21
- 241001079814 Symphyotrichum pilosum Species 0.000 claims abstract description 21
- 235000004224 Typha angustifolia Nutrition 0.000 claims abstract description 21
- 239000002131 composite material Substances 0.000 claims description 16
- 230000005489 elastic deformation Effects 0.000 claims description 12
- 238000003780 insertion Methods 0.000 claims description 12
- 230000037431 insertion Effects 0.000 claims description 12
- 210000000988 bone and bone Anatomy 0.000 claims description 11
- 150000001875 compounds Chemical class 0.000 claims description 10
- 238000012856 packing Methods 0.000 claims description 9
- 238000003032 molecular docking Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 description 9
- 210000003739 neck Anatomy 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- 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 or setting implements
- A61B17/60—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements for external osteosynthesis, e.g. distractors, contractors
- A61B17/64—Devices extending alongside the bones to be positioned
- A61B17/645—Devices extending alongside the bones to be positioned comprising a framework
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- 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 or setting implements
- A61B17/60—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements for external osteosynthesis, e.g. distractors, contractors
- A61B17/64—Devices extending alongside the bones to be positioned
- A61B17/6458—Devices extending alongside the bones to be positioned with pin-clamps fixed at ends of connecting element
Landscapes
- 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
A kind of external fixator for orthopedics dep of the present invention, including support bar, nail rod clamp system and nail, nail rod clamp system are provided with array, and every group is mainly made up of U-shaped folder I, bulb handle, bolt.Bulb handle one end is provided with bulb, centre is provided with neck, the other end is provided with taper thread hole, taper thread hole is used to install nail, U-shaped folder I two sides tip inside is provided with ball-and-socket, bulb is placed in ball-and-socket, bulb is provided with endoporus, endoporus is made up of two taper holes, it is outside that the osculum of two taper holes docks big mouth, U-shaped folder I has elasticity, its bottom is set to semi-circular thin-walled, and extended internally out two boss along its Inner arc, for embracing support bar, ball-and-socket side is provided with screwed hole, opposite side is provided with unthreaded hole, screw bolt passes unthreaded hole and endoporus are simultaneously threaded onto on screwed hole, during bolt is screwed, semi-circular thin-walled deforms clamp support bar first, then the two side of U-shaped folder I is deformed clamping bulb again, make operation easier, clamping force is bigger, locking is more reliable.
Description
Technical field
The present invention relates to orthopedic medical device field, especially a kind of external fixator for orthopedics dep.
Background technology
Existing external fixator for orthopedics dep, the single-side universal orthopedic external fixator as disclosed in the patent No. 98221136.8, its
Basic structure includes support bar, bulb handle and for connection support bar and the fixture block of bulb handle, and is fixed on bulb handle one end
Nail.Every two fixture block is one group, and one end of every group of fixture block is clipped on support bar, and the other end is clipped on the bulb of bulb handle, in
Between be bolted fastening two fixture blocks.After fixing the bone nail of fracture site both sides and bulb handle during operation, then fit
After when the position of each fixture block on regulation support bar and bulb handle and support bar fastenings, so that it may realize fracture site both sides bone
Replacement and fixation.Although the external fixator for orthopedics dep of said structure is using more convenient, every two pieces of fixture block is one group, is assembled more multiple
It is miscellaneous and not big enough to the clamping force of bulb.
The content of the invention
The invention discloses a kind of external fixator for orthopedics dep, drawbacks described above is overcome.It mainly includes that support bar, nail rod are clamped
Mechanism and nail, the nail rod clamp system are provided with array, and every group is mainly made up of U-shaped folder I, bulb handle, bolt.The nail
Rear end is provided with taper thread ailhead, and front end is provided with bone thread nail rod, and described bulb handle one end is provided with bulb, and centre is provided with neck, another
End is provided with the taper thread hole of insertion side, and the taper thread hole is used to install the nail, and the U-shaped folder I is provided with two side, two
Side wall ends inner side is provided with ball-and-socket, and the ball-and-socket inner face distance is more than the radial direction full-size of the neck, and the bulb is placed in
In the ball-and-socket, and the bulb handle multi-direction can swing, it is characterised in that：The bulb is provided with and the taper thread hole
Endoporus in the same direction, the endoporus is made up of two taper holes, and osculum docking, the big mouth of two taper hole are outwards and reverse each other, the U
Type folder I has elasticity, and its bottom is set to semi-circular thin-walled, and two boss are extended at two ends along its Inner arc respectively inwards, use
In embracing the support bar, the ball-and-socket side is provided with the screwed hole of insertion, and opposite side is provided with the unthreaded hole of insertion, the bolt according to
It is secondary through the unthreaded hole and the endoporus and to be threaded onto on the screwed hole, it is described semi-circular during the bolt is screwed
There is elastic deformation and clamp the support bar in thin-walled, then the two side of U-shaped folder I produces elastic deformation to press from both sides bulb again first
Tightly.The expansion in order that hunting range of the bulb handle is tried one's best, the ball-and-socket outward flange is provided with chamfering.
As a further improvement, a kind of external fixator for orthopedics dep of the invention increased on the basis of the first implementation method
Compound nail rod clamp system and composite support strut, the compound nail rod clamp system are main by U-shaped folder II, bulb handle, peach-shaped hole
Bolt, packing ring and nut composition, the U-shaped folder II is, by the screwed hole of the side wall of the U-shaped folder I, to be changed to and opposite side
Wall identical unthreaded hole, one end of the packing ring is provided with V-groove, and the front end of the bar portion of peach-shaped hole bolt is provided with screw rod, bolt
Head is provided with the peach-shaped hole of insertion side wall, and the composite support strut is placed in the peach-shaped hole, and the screw rod sequentially passes through the pad
Circle, the endoporus of unthreaded hole and the bulb simultaneously screw on the nut, the V-groove bandit on the composite support strut, screwing
During stating nut, there is elastic deformation and clamp the support bar in the semi-circular thin-walled of U-shaped folder II, then the U first
The two side of type folder II produces elastic deformation to clamp bulb again, while peach-shaped hole coordinates composite support strut with the V-groove
Clamp.The composite support strut is provided with nail rod clamp system and the nail, and the nail fixes bone from the other direction of bone
Bone, forms with the nail being fixed on support bar and intersects compound fixed structure
A kind of external fixator for orthopedics dep of the present invention, simple structure is easy to operate, using bolt directly through in ball-and-socket and bulb
The method in hole clamps bulb, and clamping force is bigger, and locking is more reliable, and by a screwing bolts or the structure side of nut
Formula, while locking support bar and fixed handle and composite support strut, make operation faster, can shorten operating time.
Brief description of the drawings
Fig. 1 is a kind of the first implementation method schematic diagram of external fixator for orthopedics dep of the invention；
Fig. 2 is the structural representation of U-shaped folder I in Fig. 1；
Fig. 3 is the structural representation of bulb handle in Fig. 1；
Fig. 4 is the sectional view of Fig. 3；
Fig. 5 is a kind of second implementation method schematic diagram of external fixator for orthopedics dep of the invention；
Fig. 6 is the structural representation of U-shaped folder II in Fig. 5；
Fig. 7 is the structural representation of peach-shaped hole bolt in Fig. 5；
Fig. 8 is the structural representation of Fig. 5 middle washers.
In accompanying drawing：1 support bar, 2 nail rod clamp systems, 3 nails, 4 compound nail rod clamp systems, 5 composite support struts, 21U
Type folder I, 22 bulb handles, 23 bolts, 211 ball-and-sockets, 212 chamferings, 213,413 semi-circular thin-walleds, 214 boss, 215 screwed holes,
216th, 416 unthreaded hole, 217,417 side walls, 221 bulbs, 222 necks, 223 taper thread holes, 224 endoporus, 41U types folder II, 42 peach-shaped holes
Bolt, 43 packing rings, 44 nuts, 421 peach-shaped holes, 431V type grooves.
Specific embodiment
Two kinds of implementation methods to a kind of external fixator for orthopedics dep of the invention elaborate below in conjunction with the accompanying drawings.
Fig. 1 to Fig. 4 shows a kind of the first implementation method of external fixator for orthopedics dep of the invention, and it mainly includes support bar
1st, nail rod clamp system 2 and nail 3, the nail rod clamp system 2 are provided with array, and every group main by U-shaped folder I 21, bulb handle
22nd, bolt 23 is constituted, and the rear end of the nail 3 is provided with taper thread ailhead, and front end is provided with bone thread nail rod, described one end of bulb handle 22
Bulb 221 is provided with, centre is provided with neck 222, and the other end is provided with the taper thread hole 223 of insertion side, and the taper thread hole 223 is used for
The nail 3 is installed, the U-shaped folder I 21 is provided with two side 217, and the tip inside of two side 217 is provided with ball-and-socket 211, the ball
The inner face of nest 211 distance is more than the radial direction full-size of the neck 222, and the bulb 221 is placed in the ball-and-socket 211, and
The bulb handle 22 multi-direction can swing, it is characterised in that：The bulb 221 is provided with the same direction with the taper thread hole 223
Endoporus 224, the endoporus 224 is made up of two taper holes, and osculum docking, the big mouth of two taper hole are outwards and reverse each other, the U
Type folder I 21 has elasticity, and its bottom is set to semi-circular thin-walled 213, and to extend two respectively inwards convex along the two ends of its Inner arc
Platform 214, for embracing the support bar 1, the side of the ball-and-socket 211 is provided with the screwed hole 215 of insertion, and opposite side is provided with insertion
Unthreaded hole 216, the bolt 23 sequentially passes through the unthreaded hole 216 and the endoporus 224 and is threaded onto on the screwed hole 215, in institute
State during bolt 23 screws, the semi-circular thin-walled 213 occurs elastic deformation and clamps the support bar 1 first, then U
Type folder I 21 two sides 217 produce elastic deformation to clamp bulb 221 again.In order that the hunting range of the bulb handle 22 is tried one's best
Expand, the outward flange of the ball-and-socket 211 is provided with chamfering 212.
Fig. 3 to Fig. 8 shows a kind of second implementation method of external fixator for orthopedics dep of the invention, and the external fixator for orthopedics dep is
Improvement to the first implementation method, its primary structure is to increased compound nail rod on the basis of the first implementation method to clamp
Mechanism 4 and composite support strut 5, the compound nail rod clamp system 4 are main by U-shaped folder II41, bulb handle 22, peach-shaped hole bolt
42nd, packing ring 43 and nut 44 are constituted, and the U-shaped folder II 41 is, by the screwed hole 215 of the side wall of the U-shaped folder I 21, to change
It is to be provided with V-groove 431, the bar portion of peach-shaped hole bolt 42 with opposite side wall identical unthreaded hole 416, one end of the packing ring 43
Front end be provided with screw rod, its head is provided with the peach-shaped hole 421 of insertion side wall, and the composite support strut 5 is placed in the peach-shaped hole 421
Interior, the screw rod sequentially passes through the endoporus 224 of the packing ring 43, unthreaded hole 416 and the bulb 221 and screws on the nut 44,
, on the composite support strut 5, during the nut 44 is screwed, U-shaped folder II's is semi-circular thin for the bandit of the V-groove 435
There is elastic deformation and clamp the support bar 1 in wall 413, then the U-shaped folder II41 two sides 417 produce elastic deformation first
Bulb 221 is clamped, while peach-shaped hole 421 coordinates with the V-groove 431 clamping composite support strut 5.The composite support strut
5 are provided with nail rod clamp system 2 and the nail 3, and the nail 3 and is fixed on support from the other direction fix bone of bone
Nail 3 on bar 1 is formed and intersects compound fixed structure.
Claims (3)
1. a kind of external fixator for orthopedics dep, mainly including support bar (1), nail rod clamp system (2) and nail (3), the nail rod folder
Tight mechanism (2) is provided with array, and every group is mainly made up of U-shaped folder I (21), bulb handle (22), bolt (23), after the nail (3)
End is provided with taper thread ailhead, and front end is provided with bone thread nail rod, and described bulb handle (22) one end is provided with bulb (221), and centre is provided with
Neck (222), the other end is provided with the taper thread hole (223) of insertion side, and the taper thread hole (223) is for installing the nail
(3), U-shaped folder I (21) is provided with two side (217), and two side (217) tip inside is provided with ball-and-socket (211), the bulb
(221) it is placed in the ball-and-socket (211), and the bulb handle (22) multi-direction can swing, it is characterised in that：The bulb
(221) endoporus (224) in the same direction with the taper thread hole (223) is provided with, the endoporus (224) is made up of two taper holes, described two
Osculum docking, the big mouth of taper hole are outwards and reverse each other, and with elasticity, its bottom is set to semi-circular thin-walled to U-shaped folder I (21)
(213) two boss (214) are extended at the two ends, and along its Inner arc respectively inwards, described for embracing the support bar (1)
Ball-and-socket (211) side is provided with the screwed hole (215) of insertion, and opposite side is provided with the unthreaded hole (216) of insertion, and the bolt (23) is successively
Through the unthreaded hole (216) and the endoporus (224) and it is threaded onto on the screwed hole (215), is screwed in the bolt (23)
During, there is elastic deformation and clamp the support bar (1) in the semi-circular thin-walled (213), then U-shaped folder I (21) first
Two side (217) produce again elastic deformation by bulb (221) clamp.
2. a kind of external fixator for orthopedics dep according to claim 1, it is characterised in that：The external fixator for orthopedics dep also includes compound nail
Bar clamp system (4) and composite support strut (5), the compound nail rod clamp system (4) are main by U-shaped folder II (41), bulb handle
(22), peach-shaped hole bolt (42), packing ring (43) and nut (44) composition, U-shaped folder II (41) is by the U-shaped folder I
(21) screwed hole (215) of side wall, is changed to be set with opposite side wall identical unthreaded hole (416), one end of the packing ring (43)
The front end for having V-groove (431), the bar portion in peach-shaped hole bolt (42) is provided with screw rod, and bolt head is provided with the peach-shaped of insertion side wall
Hole (421), the composite support strut (5) is placed in the peach-shaped hole (421), the screw rod sequentially pass through the packing ring (43),
The endoporus (224) of unthreaded hole (416) and the bulb (221) simultaneously screws on the nut (44), and V-groove (431) bandit is in described
On composite support strut (5), during the nut (44) is screwed, the semi-circular thin-walled (413) of U-shaped folder II (41) is sent out first
Raw elastic deformation clamps the support bar (1), and then the two side (417) of U-shaped folder II (41) produces elastic deformation again
Bulb (221) is clamped, while peach-shaped hole (421) coordinate with the V-groove (431) clamp composite support strut (5), it is described multiple
Close support bar (5) and be provided with nail rod clamp system (2) and the nail (3), the nail (3) fixes bone from the other direction of bone
Bone, forms with the nail (3) being fixed on support bar (1) and intersects compound fixed structure.
3. a kind of external fixator for orthopedics dep according to claim 1 and 2, it is characterised in that：Ball-and-socket (211) outward flange sets
There is chamfering (212).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510895686.XA CN105411659B (en) | 2015-12-03 | 2015-12-03 | A kind of external fixator for orthopedics dep |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510895686.XA CN105411659B (en) | 2015-12-03 | 2015-12-03 | A kind of external fixator for orthopedics dep |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105411659A CN105411659A (en) | 2016-03-23 |
| CN105411659B true CN105411659B (en) | 2017-07-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510895686.XA Active CN105411659B (en) | 2015-12-03 | 2015-12-03 | A kind of external fixator for orthopedics dep |
Country Status (1)
| Country | Link |
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| CN (1) | CN105411659B (en) |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5683389A (en) * | 1994-12-05 | 1997-11-04 | Smith & Nephew, Inc. | External fixator for distal radius fractures |
| CN2322564Y (en) * | 1998-03-02 | 1999-06-09 | 孙德修 | Single-side universal orthopedic external fixator |
| IT1307909B1 (en) * | 1999-01-21 | 2001-11-29 | Medicalplastic S R L | EXTERNAL FIXER FOR ORTHOPEDICS AND TRAUMATOLOGY. |
| CN2394588Y (en) * | 1999-11-25 | 2000-09-06 | 高涛 | One side bone outside fixing frame |
| CN2469897Y (en) * | 2001-03-19 | 2002-01-09 | 高涛 | Nail-locking device for bone external-fixing rack |
| CN2497731Y (en) * | 2001-10-23 | 2002-07-03 | 孙德修 | Pin locking device for external fixer of orthopedics |
| EP2308402A3 (en) * | 2006-05-15 | 2011-04-27 | Biomet Spain Orthopaedics S.L. | Surgical screw system |
| US20140180338A1 (en) * | 2007-01-10 | 2014-06-26 | Globus Medical, Inc | System and Method for Bone Anchorage |
| CN201085679Y (en) * | 2007-09-28 | 2008-07-16 | 陈唯宁 | Fastening type vertebral column nail and stick fixing nail |
| CN201168024Y (en) * | 2008-04-01 | 2008-12-24 | 贾新路 | Reset type fracture external fixing rack |
| CN103919593B (en) * | 2013-01-11 | 2016-01-06 | 付备刚 | A kind of femur distraction reduction device and application thereof |
| CN205307071U (en) * | 2015-12-03 | 2016-06-15 | 山东航维骨科医疗器械股份有限公司 | Orthopaedic external fixing frame |
-
2015
- 2015-12-03 CN CN201510895686.XA patent/CN105411659B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105411659A (en) | 2016-03-23 |
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