CN106937879A - Elbow joint in-seam comminuted fracture fixator - Google Patents
Elbow joint in-seam comminuted fracture fixator Download PDFInfo
- Publication number
- CN106937879A CN106937879A CN201710265241.2A CN201710265241A CN106937879A CN 106937879 A CN106937879 A CN 106937879A CN 201710265241 A CN201710265241 A CN 201710265241A CN 106937879 A CN106937879 A CN 106937879A
- Authority
- CN
- China
- Prior art keywords
- bone chip
- substrate
- folding
- pawl
- swing arm
- 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
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
- A61B17/64—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, 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
-
- 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
- A61B2017/606—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 with resilient spring element
Abstract
The present invention relates to a kind of elbow joint in-seam comminuted fracture fixator, it includes support, folding and unfolding swing arm and some interior bone chip pawls；Support includes substrate and the central roof beam structure being erected on substrate, and wherein substrate is provided with body cradle, and the horizontal component of central roof beam structure is provided with the bolt hole screwed in for folding and unfolding swing arm；Folding and unfolding swing arm is furnished with ears nut, and folding and unfolding swing arm bottom is fixed with a connecting plate；It is hinged in the middle part of interior bone chip pawl by jointed shaft on the body cradle of the substrate of support, interior bone chip pawl medial extremity is ridden upon on the connecting plate of folding and unfolding swing arm bottom；The present invention can realize the quick overall folding and unfolding of interior bone chip pawl and independent fine adjustment, it is good that rear stability is resetted with bone chip, receive the advantage of functional rehabilitation exercise ahead of time, keep away on part design and be additionally arranged bone chip pin, bone chip folded block angled forward in elbow joint, displacement can be effectively prevented, the scope of application in joint comminuted fracture field is wider.
Description
Technical field
The present invention relates to a kind of orthopedic medical device, more particularly to a kind of elbow joint in-seam comminuted fracture fixator.
Background technology
Comminuted fracture is relatively conventional injury types in orthopaedics sufferer, and using joint part in-seam comminuted fracture as
It is main, but ancon is as connection forearm and large arm rotation pivot in daily routines, the bent flesh of brachioradialis, upper arm side wrist, the bicipital muscle of arm and the upper arm
The frequent receipts shura of four pieces of muscle of flesh, which is pulled, make it that the replacement and fixation effect of bone chip in elbow joint is extremely undesirable.Chinese patent
(CN20101228) a kind of in-seam fracture fixing apparatus is disclosed, it is included after some opposite bone chip hooks, above-mentioned bone chip hook
End is hinged on a support bar, and support bar is through drawing in after cover, and attaching nut is added and subtracted by nut and pressed, and adjustment support bar stretches,
Bone chip hook is tightened up using cover is drawn in.The technical purpose of the innovation and creation is the mode with bone chip hook hook jail, to improve tradition
Interspersed and steel plate suspension the interior fixed solution of draw point in bone surgery.But the innovation and creation assume that joint in-seam fracture fragments
For the situation that size is impartial and is evenly distributed, and in real case, ancon in-seam fracture fragments are size and distributing position pole
Few so uniform regular, bone chip hook generally can not be while each lucky bone chip.For example, in irregular in-seam chip distribution
In the case of, often several bone chip hooks have been hooked into bone chip, and other bone chip hook does not completely attach to bone chip,
Be in gathering, each fragment discontinuity will eventually lead to fragment fix loosely, postoperative fragment dislocation etc. failure fixation.
And the balance of the fixed force of a plane is at most solved when grabbing from two lateral centres.Realize that effectively fixation is critically depend on
Many vector balancings can be reached in solid.After clinical manifestation elbow joint in-seam replacement and fixation during functional exercise often with forearm,
Large arm junction is fulcrum, and elbow joint fragment bone piece misplaces forward in the presence of making a concerted effort, and then fragment is more easy to hair to comminuted fracture
Raw shift separation.Therefore the above-mentioned technical scheme is more suitable for long bone breaking type fracture to spelling, in intra-articular bone comminuted fracture side
Face is difficult to embody the superiority treated in its structure.Existing most of elbow joint in-seam comminuted fracture of other this areas is fixed
Device innovation and creation, such as Chinese patent CN103370020B) a kind of orthopedic fixer for elbow joint, Chinese patent
(CN201194863) this area such as a kind of adjustable elbow joint fixer apparatus, is outside enclosed and fixes product, for
After operative reduction, coordinate kneading contraposition or draw point, steel plate to carry out external reinforcing and fix, this fixator not consolidate by bone chip in-seam
It is fixed, fix essential identical with clinically surgical incision reset strap power in effect.
The content of the invention
The technical problem to be solved in the present invention is how to overcome the drawbacks described above of prior art there is provided a kind of elbow joint in-seam
Comminuted fracture fixator.
In order to solve the above technical problems, this elbow joint in-seam comminuted fracture fixator includes a support, a folding and unfolding swing arm
With some interior bone chip pawls；Wherein,
The support includes substrate and the central roof beam structure being erected on substrate, wherein the substrate is provided with body cradle, institute
The horizontal component for stating central roof beam structure is provided with the bolt hole screwed in for the folding and unfolding swing arm；
The folding and unfolding swing arm is furnished with ears nut, and folding and unfolding swing arm bottom is fixed with a connecting plate；
It is hinged in the middle part of the interior bone chip pawl by jointed shaft on the body cradle of the substrate of the support, interior bone chip pawl
Medial extremity is ridden upon on the connecting plate of the folding and unfolding swing arm bottom；
The folding and unfolding swing arm is located in bolt hole on central roof beam structure, the connecting plate be located at substrate and central roof beam structure it
Between；
A screw is provided with each interior bone chip pawl, and is also opened in projected position of the screw on stent substrate
There is screw, on bone chip pawl screw and substrate screw, screw in a folding and unfolding being used for single interior bone chip pawl and carry out micro essence
Fine setting rotation post.
It is so designed that, in use, first with folding and unfolding swing arm, manipulate multiple interior bone chip pawls and act together, fixed elbow joint
Interior bone chip, when bone chip unbalance stress in discovery, or even when bone chip is not puted forth effort in certain piece, individually adjusts its fine setting rotation post,
The interior bone chip stress is set to reach balance；Prevent in use, interior bone chip pawl swing, torsion back-moving spring just interior bone chip pawl from
It is dynamic to open, keep simple, unimpeded between internal structure.
As optimization, perforate on the substrate of the support, and some adjustable for height bone chip pins are fixedly mounted in hole
Nail；The substrate of the support is provided with four fixing holes, and in being furnished with a sleeve pipe in each fixing hole, and the sleeve pipe one end is provided with
Flange, the other end is provided with multiple cannelures, and centre is provided with external screw thread, and equipped with lock ring nut, passes through external screw thread and lock ring nut
Carry out banding bone chip pin, and be fixed in fixing hole.It is so designed that, sets up bone chip pin, for fixed flower joint
The broken bone of middle position, for the broken bone at other positions, can make certain bending by broken bone fixation nail and be fixed.
As optimization, the interior bone chip pawl is four altogether, and its outboard end pawl point points to the central roof beam structure bolt hole
Axis, medial extremity is radial to be uniformly laid in around the connecting plate, and being equipped with torsion on each interior bone chip pawl answers
Position spring, the torsion back-moving spring is arranged on the jointed shaft on substrate in body cradle；The bone chip pin is four altogether,
It is downward that its tip is oriented to the stent substrate of top shell between.It is so designed that, interior bone chip pawl pawl point is centripetal, can when using
To gather broken bone；Under the tip of the bone chip pin is pointed to, angular adjustment can be carried out by domatic groove and sleeve pipe, fixed not
With the broken bone of angle faces, bone chip pin, which can be fixed on the diverse location of domatic groove, to be slided and fixed, in each domatic groove
It is equipped with a bone chip pin and both meets demand.
Elbow joint in-seam comminuted fracture fixer structure of the present invention is simple, easy to use, can realize interior bone chip pawl
Quick overall folding and unfolding and independent fine adjustment, with bone chip reset rear stability it is good, receive functional rehabilitation exercise do sth. in advance
Advantage, it is to avoid because joint is stiff for a long time, cause to be additionally arranged bone chip on muscular atrophy and dysfunction, part design
Pin, can effectively prevent bone chip folded block angled forward in elbow joint, displacement, in the suitable of joint comminuted fracture field
It is wider with scope.
Brief description of the drawings
A kind of elbow joint in-seam comminuted fracture fixator of the invention is described further below in conjunction with the accompanying drawings：
Fig. 1 is the dimensional structure diagram of this elbow joint in-seam comminuted fracture fixator；
Fig. 2 is the structural representation of bone chip pin external member；
Fig. 3 is the structural representation of bone chip pin retainer.
In figure：The central roof beam structure of 1- supports, 101- substrates, 102-, 103- body cradles, 104- bolts hole, 105- fixing holes, 2-
Folding and unfolding swing arm, 201- ears nut, bone chip pawl in 3-, 301- jointed shafts, 302- fine setting rotations post, 303- torsion back-moving spring,
4- connecting plates, 5- bone chips pin, 6- sleeve pipes, 601- flange, 602- cannelures, 603- external screw threads, 7- lock ring nuts.
Embodiment
As shown in Figures 1 to 3, if this elbow joint in-seam comminuted fracture fixator include a support 1, a folding and unfolding swing arm 2 and
Bone chip pawl 3 in dry；Wherein,
The support 1 includes the central roof beam structure 102 of substrate 101 and erection on the substrate 101, wherein on the substrate 101
Provided with body cradle 103, the horizontal component of the central roof beam structure 102 is provided with the bolt hole 104 screwed in for the folding and unfolding swing arm 2；
The folding and unfolding swing arm 2 is furnished with ears nut 201, and the bottom of folding and unfolding swing arm 2 is fixed with a connecting plate 4；
The middle part of interior bone chip pawl 3 is hinged on the body cradle 103 of the substrate 101 of the support 1 by jointed shaft 301
On, the interior medial extremity of bone chip pawl 3 is ridden upon on the connecting plate 4 of the bottom of folding and unfolding swing arm 2；
The folding and unfolding swing arm 2 is located in the bolt hole 103 on central roof beam structure 102, and the connecting plate 4 is located at substrate 101
Between central roof beam structure 102；
A screw, and the projection position in the screw on the substrate 101 of support 1 are provided with each interior bone chip pawl 3
Put and be also provided with screw, on the screw of bone chip pawl 3 and the screw of substrate 101, screwing in one is used for the folding and unfolding to single interior bone chip pawl 3
Carry out micro smart fine setting rotation post 302.
It is so designed that, in use, first with folding and unfolding swing arm, manipulate multiple interior bone chip pawls and act together, fixed elbow joint
Interior bone chip, when bone chip unbalance stress in discovery, or even when bone chip is not puted forth effort in certain piece, individually adjusts its fine setting rotation post,
The interior bone chip stress is set to reach balance；Prevent in use, interior bone chip pawl swing, torsion back-moving spring just interior bone chip pawl from
It is dynamic to open, keep simple, unimpeded between internal structure.
Perforate on the substrate 101 of the support 1, and some adjustable for height bone chip pins 5 are fixedly mounted in hole；Institute
The substrate 101 of support 1 is stated provided with four fixing holes 105, and it is interior equipped with a sleeve pipe 6, the sleeve pipe 6 in each fixing hole 105
One end is provided with flange 601, and the other end is provided with multiple cannelures 602, and centre is provided with external screw thread 603, and equipped with lock ring nut 7, leads to
Cross external screw thread 603 and lock ring nut 7 carrys out banding bone chip pin 5, and be fixed in fixing hole 105.Set up bone chip pin
Follow closely, for the broken bone of fixed flower joint middle position, for the broken bone at other positions, broken bone fixation can be followed closely and make necessarily curved
Song is fixed.
The interior bone chip pawl 3 is four altogether, and its outboard end pawl point is pointed in the central bolt hole 103 of roof beam structure 102
Axis, medial extremity is radial to be uniformly laid in around the connecting plate 4, and being equipped with torsion on each interior bone chip pawl 3 answers
Position spring 303, the torsion back-moving spring 303 is installed on the jointed shaft 301 in body cradle 103 on the substrate 101；The bone is broken
Piece pin 5 is altogether four, and the substrate 101 of support 1 that its tip is oriented to the top shell 1 between is downward.Interior bone chip pawl pawl point
It is centripetal, broken bone can be gathered when using；Under the tip of the bone chip pin is pointed to, angle can be carried out by domatic groove and sleeve pipe
Degree regulation, the broken bone of fixed different angle faces, bone chip pin, which can be fixed on the diverse location of domatic groove, to be slided and fixed,
A bone chip pin, which is equipped with, in each domatic groove both meets demand.
It can be that professional and technical personnel in the field realize or used that above-mentioned embodiment, which is intended to illustrate the present invention, to above-mentioned
Embodiment modified and will be apparent for those skilled in the art, therefore the present invention includes but is not limited to
Above-mentioned embodiment, it is any to meet the claims or specification description, meet with principles disclosed herein and novelty,
The method of inventive features, technique, product, each fall within protection scope of the present invention.
Claims (3)
1. a kind of elbow joint in-seam comminuted fracture fixator, it is characterized in that：The fixator includes a support (1), a folding and unfolding and revolved
Bar (2) and some interior bone chip pawls (3)；Wherein,
The support (1) includes substrate (101) and the central roof beam structure (102) being erected on substrate (101), wherein the substrate
(101) body cradle (103) is provided with, the horizontal component of the central roof beam structure (102) is provided with what is screwed in for the folding and unfolding swing arm (2)
Bolt hole (104)；
The folding and unfolding swing arm (2) is furnished with ears nut (201), and folding and unfolding swing arm (2) bottom is fixed with a connecting plate (4)；
The body cradle of the substrate (101) of the support (1) is hinged in the middle part of the interior bone chip pawl (3) by jointed shaft (301)
(103) on, interior bone chip pawl (3) medial extremity is ridden upon on the connecting plate (4) of folding and unfolding swing arm (2) bottom；
The folding and unfolding swing arm (2) is located in the bolt hole (103) on central roof beam structure (102), and the connecting plate (4) is located at substrate
(101) between central roof beam structure (102)；
A screw, and the projection in the screw on support (1) substrate (101) are provided with each interior bone chip pawl (3)
Position is also provided with screw, on bone chip pawl (3) screw and substrate (101) screw, and screwing in one is used for single interior bone chip pawl
(3) folding and unfolding carries out micro smart fine setting rotation post (302).
2. elbow joint in-seam comminuted fracture fixator according to claim 1, it is characterized in that：The base of the support (1)
Perforate on plate (101), and some adjustable for height bone chip pins (5) are fixedly mounted in hole；The substrate of the support (1)
(101) provided with four fixing holes (105), and it is interior equipped with a sleeve pipe (6), sleeve pipe (6) one end in each fixing hole (105)
Provided with flange (601), the other end is provided with multiple cannelures (602), and centre is provided with external screw thread (603), and equipped with lock ring nut
(7), by external screw thread (603) and lock ring nut (7) come banding bone chip pin (5), and it is fixed in fixing hole (105)
It is interior.
3. elbow joint in-seam comminuted fracture fixator according to claim 2, it is characterized in that：The interior bone chip pawl
(3) it is altogether four, its outboard end pawl point points to the axis of central roof beam structure (102) bolt hole (103), and medial extremity is in radiation
Shape is uniformly laid in around the connecting plate (4), and torsion back-moving spring (303), institute are equipped with each interior bone chip pawl (3)
Torsion back-moving spring (303) is stated on the jointed shaft (301) in body cradle (103) on substrate (101)；The bone chip pin
It is four altogether to follow closely (5), and its tip is oriented to support (1) substrate (101) of the top shell (1) between downwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710265241.2A CN106937879A (en) | 2017-04-21 | 2017-04-21 | Elbow joint in-seam comminuted fracture fixator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710265241.2A CN106937879A (en) | 2017-04-21 | 2017-04-21 | Elbow joint in-seam comminuted fracture fixator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106937879A true CN106937879A (en) | 2017-07-11 |
Family
ID=59464654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710265241.2A Pending CN106937879A (en) | 2017-04-21 | 2017-04-21 | Elbow joint in-seam comminuted fracture fixator |
Country Status (1)
| Country | Link |
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| CN (1) | CN106937879A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2108526U (en) * | 1991-12-24 | 1992-07-01 | 上海市宝山区吴淞中心医院 | Marmem frame type tubular fixture for bone |
| WO2008036016A1 (en) * | 2006-09-21 | 2008-03-27 | Henrik Hansson | Device for fixation of a bone fracture. |
| CN101380246A (en) * | 2007-09-07 | 2009-03-11 | 唐上德 | Patella fixing device |
| US20120209266A1 (en) * | 2011-02-11 | 2012-08-16 | Orthofix S.R.L. | External orthopaedic fixator for the elbow joint |
| CN103417279A (en) * | 2013-09-06 | 2013-12-04 | 江苏广济医疗科技有限公司 | Movable and fixed combined adjusting outer fixator for elbow joint |
| CN203425019U (en) * | 2013-09-06 | 2014-02-12 | 江苏广济医疗科技有限公司 | Elbow joint dynamic and static combination regulating type external fixer |
-
2017
- 2017-04-21 CN CN201710265241.2A patent/CN106937879A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2108526U (en) * | 1991-12-24 | 1992-07-01 | 上海市宝山区吴淞中心医院 | Marmem frame type tubular fixture for bone |
| WO2008036016A1 (en) * | 2006-09-21 | 2008-03-27 | Henrik Hansson | Device for fixation of a bone fracture. |
| CN101380246A (en) * | 2007-09-07 | 2009-03-11 | 唐上德 | Patella fixing device |
| US20120209266A1 (en) * | 2011-02-11 | 2012-08-16 | Orthofix S.R.L. | External orthopaedic fixator for the elbow joint |
| CN103417279A (en) * | 2013-09-06 | 2013-12-04 | 江苏广济医疗科技有限公司 | Movable and fixed combined adjusting outer fixator for elbow joint |
| CN203425019U (en) * | 2013-09-06 | 2014-02-12 | 江苏广济医疗科技有限公司 | Elbow joint dynamic and static combination regulating type external fixer |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20170711 |