CN106901817A - Ankle-joint in-seam comminuted fracture fixator - Google Patents
Ankle-joint in-seam comminuted fracture fixator Download PDFInfo
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- CN106901817A CN106901817A CN201710265258.8A CN201710265258A CN106901817A CN 106901817 A CN106901817 A CN 106901817A CN 201710265258 A CN201710265258 A CN 201710265258A CN 106901817 A CN106901817 A CN 106901817A
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- bone chip
- pawl
- interior
- folding
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B2017/564—Methods for bone or joint treatment
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Neurology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The present invention relates to a kind of ankle-joint in-seam comminuted fracture fixator, it includes top shell, folding and unfolding swing arm and some interior bone chip pawls；Top shell be one it is overall be in polygonal pyramid bench-type hard profile material, it includes grand rib, bottom surface substrates and central boss, and central boss top is provided with through hole, it is internal with grand prismatic into groove be connected；Folding and unfolding swing arm bottom is fixed with a connecting plate；Interior bone chip pawl middle part is hinged in the groove of the grand rib of top shell by jointed shaft, and 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 with bone chip reset rear stability, receive functional rehabilitation exercise advantage ahead of time, avoid because joint is stiff for a long time, cause muscular atrophy and dysfunction, bone chip pin is additionally arranged on part design, bone chip folded block angled forward in ankle-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 ankle-joint in-seam comminuted fracture fixator.
Background technology
Comminuted fracture is relatively conventional injury types in orthopaedics sufferer, and is with joint part in-seam comminuted fracture
It is main, but ankle and foot position is pullled as connection shank and the pivot of instep, Calf muscle and the frequent of foot muscles in daily routines
So that the replacement and fixation effect of bone chip is extremely undesirable in ankle-joint.Chinese patent (CN20101228) discloses a kind of in-seam bone
Folding fixator, it includes some opposite bone chip hooks, and above-mentioned bone chip hook rear end is hinged on a support bar, and support bar is passed through
After drawing cover in, attaching nut is added and subtracted by nut and pressed, and adjustment support bar is stretched, and bone chip hook is tightened up using cover is drawn in.The invention
The technical purpose of creation is that draw point interts and steel plate suspension during traditional bone surgery is improved with the mode in bone chip hook hook jail
Interior fixed solution.But the innovation and creation assume that the situation that anklebone in-seam fracture fragments are impartial for size and are evenly distributed, and
In real case, anklebone in-seam fracture fragments are that size and distributing position are few so uniform regular, and bone chip hook is generally not
Can be while lucky each bone chip.For example, in the case of irregular in-seam chip distribution, often several bone chip hooks have been hooked
To in bone chip, and other bone chip hook does not completely attach to bone chip, is in gathering, each fragment discontinuity,
Will eventually lead to fragment fix loosely, postoperative fragment dislocation etc. failure fixation.And at most solved when grabbing from two lateral centres
Determine a balance for the fixing force of plane.Can realize that effectively fixation is critically depend on reach many vector balancings in solid.
Often with shank, ankle junction as fulcrum during functional exercise after clinical manifestation ankle-joint in-seam replacement and fixation, in the work made a concerted effort
Misplaced forward with lower ankle-joint fragment bone piece, then fragment is more easy to shift separation to comminuted fracture.Therefore the above-mentioned technical scheme
Long bone breaking type fracture is more suitable for spelling, is difficult to embody in terms of the in-seam comminuted fracture of joint and is treated superior in its structure
Property.Existing most of ankle-joint in-seam comminuted fracture fixator innovation and creation of other this areas, such as Chinese patent
CN204600815 a kind of a kind of) whole bone ankle-joint complicated fracture treatment of ankle fixator, Chinese patent (CN204274609)
This area such as fixator apparatus, is and uses hard malleolus-protecting type body protector to be improved product for prototype, and it is in hand
After art resets, coordinate gypsum closing to strengthen fixed effect, it is fixed in the not proper bone chip of this fixator and
Clinically surgical incision reset strap power is fixed essential identical.
The content of the invention
The technical problem to be solved in the present invention is the drawbacks described above for how overcoming prior art, there is provided a kind of ankle-joint in-seam
Comminuted fracture fixator.
In order to solve the above technical problems, this ankle-joint in-seam comminuted fracture fixator includes a top shell, a folding and unfolding swing arm
With some interior bone chip pawls；Wherein,
The top shell is one overall in polygonal pyramid bench-type hard profile material, and it is included for the cover lid interior bone chip pawl simultaneously
With interior bone chip pawl quantity and position match by grand rib, bottom surface substrates and central boss, the central boss top is provided with
For the through hole that the folding and unfolding swing arm passes through, inside the central boss with grand prismatic into groove be connected；
The folding and unfolding swing arm is furnished with ears nut, and folding and unfolding swing arm bottom is fixed with a connecting plate；
The interior bone chip pawl middle part is hinged in the groove of the grand rib of the top shell by jointed shaft, interior bone chip pawl inner side
End is ridden upon on the connecting plate of the folding and unfolding swing arm bottom；
The folding and unfolding swing arm is located in the through hole in central boss, described interior in the centrally located boss of connecting plate
Bone chip pawl be located at grand prismatic into groove in, the medial extremity of interior bone chip pawl extends to central boss region；
A screw is provided with each described grand rib, and is used for the folding and unfolding to single interior bone chip pawl in screw-in one in screw
Carry out the fine setting rotation post of micro essence.
It is so designed that, when using, first with folding and unfolding swing arm, manipulates bone chip pawl in multiple and act together, SACHfoot adaptor
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；Groove below grand rib internally can play position-limiting action by bone chip pawl, prevent from using
When, interior bone chip pawl swings, and just interior bone chip pawl opens torsion back-moving spring automatically, top shell using the shaping of steel plate integrated punching,
Integrally casting shapes or lathe drill milling is integrally formed, keeps simple, unimpeded between internal structure.
As optimization, slotted in the bottom surface substrates of the top shell, and interior in groove to be equipped with some adjustable for height bones broken
Piece pin；The bottom surface substrates are provided with two domatic grooves, and in being furnished with a sleeve pipe in each domatic groove, the sleeve pipe one end sets
There is flange, the other end is provided with multiple cannelures, and centre is provided with external screw thread, and equipped with lock ring nut, by external screw thread and lock ring spiral shell
Mother carrys out banding bone chip pin, and is fixed in domatic groove.It is so designed that, sets up bone chip pin, is closed for fixed flower
The broken bone of middle position is saved, for the broken bone at other positions, broken bone fixation nail can be made certain bending and be fixed.
Used as optimization, the interior bone chip pawl is altogether four, and its outboard end pawl point points to the axle of the central boss through hole
Heart line, medial extremity is radial to be uniformly laid in around the connecting plate, and torsion reset is equipped with each interior bone chip pawl
Spring, the torsion back-moving spring is arranged on jointed shaft of the interior bone chip pawl with grand rib；The bone chip pin is altogether two
Individual, it is downward that its tip is oriented to the bottom surface substrates of top shell between.It is so designed that, interior bone chip pawl pawl point is centripetal, uses
When can 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, Gu
The broken bone of fixed different angle faces, bone chip pin can be fixed on the diverse location of domatic groove and slide and fixed, and each is domatic
A bone chip pin is equipped with groove and both meets demand.
Ankle-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, it is good with bone chip reset rear stability, receive functional rehabilitation exercise do sth. in advance
Advantage, it is to avoid because joint is stiff for a long time, cause muscular atrophy and dysfunction, bone chip be additionally arranged on part design
Pin, can effectively prevent bone chip folded block angled forward in ankle-joint, displacement, in the suitable of joint comminuted fracture field
It is wider with scope.
Brief description of the drawings
A kind of ankle-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 ankle-joint in-seam comminuted fracture fixator；
Fig. 2 is the biopsy cavity marker devices structural representation of this ankle-joint in-seam comminuted fracture fixator；
Fig. 3 is the structural representation of bone chip pin external member；
Fig. 4 is the structural representation of bone chip pin retainer.
In figure：The grand rib of 1- top shells, 101-, 102- bottom surface substrates, 103- central boss, 104- through holes, 105- grooves, 106-
Bone chip pawl, 301- jointed shafts, 302- fine setting rotations post, 303- torsion back-moving spring, 4- connect in domatic groove, 2- folding and unfoldings swing arm, 3-
Fishplate bar, 5- bone chips pin, 6- sleeve pipes, 601- flange, 602- cannelures, 603- external screw threads, 7- lock ring nuts.
Specific embodiment
As shown in Figures 1 to 4, if this ankle-joint in-seam comminuted fracture fixator include a top shell 1, a folding and unfolding swing arm 2 and
Bone chip pawl 3 in dry；Wherein, the top shell 1 is one overall in polygonal pyramid bench-type hard profile material, and it is included for described in cover lid
Interior bone chip pawl 3 and with the interior quantity of bone chip pawl 3 and position match by grand rib 101, bottom surface substrates 102 and central boss
103, the top of the central boss 103 is provided with the through hole 104 passed through for the folding and unfolding swing arm 2, the inside of the central boss 103 with
The groove 105 that grand rib 101 is formed is connected；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 one
Connecting plate 4；The middle part of the interior bone chip pawl 3 is hinged in the groove 105 of the grand rib 101 of the top shell 1 by jointed shaft 301, interior
The 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 central boss
In through hole 104 on 103, in the centrally located boss 103 of the connecting plate 4, the interior bone chip pawl 3 is formed positioned at grand rib 101
Groove 105 in, the medial extremity of interior bone chip pawl 3 extends to the region of central boss 103；It is provided with each described grand rib 101
One screw, and revolve post 302 in a fine setting for being used to carry out the folding and unfolding of single interior bone chip pawl 3 micro essence is screwed in screw.Make
Used time, first with folding and unfolding swing arm, manipulate bone chip pawl in multiple and act together, bone chip in SACHfoot adaptor, when discovery in-seam
When bone chip is not puted forth effort in fragment unbalance stress, or even certain piece, its fine setting rotation post is individually adjusted, reach the interior bone chip stress
Balance；Groove below grand rib internally can play position-limiting action by bone chip pawl, and when preventing from using, interior bone chip pawl swings, and turns round
Just interior bone chip pawl opens power back-moving spring automatically, and top shell is using the shaping of steel plate integrated punching, integrally casting shaping or lathe drill
Milling is integrally formed, keeps simple, unimpeded between internal structure.
Slotted in the bottom surface substrates 102 of the top shell 1, and interior in groove be equipped with some adjustable for height bone chip pins
5；The bottom surface substrates 102 are provided with two domatic grooves 106, and interior equipped with a sleeve pipe 6, the sleeve pipe 6 in each domatic groove 106
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 domatic groove 106.Set up bone chip pin
Nail, for the broken bone of fixed flower joint middle position, for the broken bone at other positions, can make certain curved by broken bone fixation nail
Song is fixed.
The interior bone chip pawl 3 is altogether four, and its outboard end pawl point points to the axle center of the through hole 104 of central boss 103
Line, medial extremity is radial to be uniformly laid in around the connecting plate 4, and torsion reset is equipped with each interior bone chip pawl 3
Spring 303, the torsion back-moving spring 303 is arranged on jointed shaft 301 of the interior bone chip pawl 3 with grand rib 101；The bone is broken
Piece pin 5 is altogether two, and the bottom surface substrates 102 that its tip is oriented to the top shell 1 between are downward.Interior bone chip pawl pawl point to
The heart, can gather broken bone when using；Under the tip of the bone chip pin is pointed to, angle can be carried out by domatic groove and sleeve pipe
Regulation, the broken bone of the different angle faces of fixation, bone chip pin can be fixed on the diverse location of domatic groove and slide and fixed, often
A bone chip pin is equipped with individual domatic groove and both meets demand.
It can be that professional and technical personnel in the field realize or use that above-mentioned implementation method is intended to illustrate the present invention, to above-mentioned
Implementation method is modified and will be apparent for those skilled in the art, therefore the present invention is included but is not limited to
Above-mentioned implementation method, 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 ankle-joint in-seam comminuted fracture fixator, it is characterized in that：The fixator includes that a top shell (1), a folding and unfolding are revolved
Bar (2) and some interior bone chip pawls (3)；Wherein,
The top shell (1) is overall in polygonal pyramid bench-type hard profile material for one, and it is included for the cover lid interior bone chip pawl (3)
And with interior bone chip pawl (3) quantity and position match by grand rib (101), bottom surface substrates (102) and central boss (103),
Central boss (103) top is provided with the through hole (104) passed through for the folding and unfolding swing arm (2), the central boss (103)
The groove (105) that portion is formed with grand rib (101) is connected；
The folding and unfolding swing arm (2) is fixed with a connecting plate (4) equipped with ears nut (201), folding and unfolding swing arm (2) bottom；
Interior bone chip pawl (3) middle part is hinged on the groove (105) of the top shell (1) grand rib (101) by jointed shaft (301)
In, 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 in the through hole (104) in central boss (103), and the connecting plate (4) is centrally located convex
In platform (103), the interior bone chip pawl (3) is interior positioned at the groove (105) that grand rib (101) is formed, the inner side of interior bone chip pawl (3)
End extends to central boss (103) region；
A screw is provided with each described grand rib (101), and is used for single interior bone chip pawl (3) in screwing in one in screw
Post (302) is revolved in the fine setting that folding and unfolding carries out micro essence.
2. ankle-joint in-seam comminuted fracture fixator according to claim 1, it is characterized in that：The bottom of the top shell (1)
Slotted on face substrate (102), and interior in groove be equipped with some adjustable for height bone chip pins (5)；The bottom surface substrates
(102) two domatic grooves (106) are provided with, and it is interior equipped with a sleeve pipe (6), sleeve pipe (6) one end in each domatic groove (106)
Flange (601) is provided with, 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 domatic groove (106)
It is interior.
3. ankle-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 axial line of the central boss (103) through hole (104), medial extremity is radial
Uniformly it is laid in around the connecting plate (4), torsion back-moving spring (303) is equipped with each interior bone chip pawl (3), it is described
Torsion back-moving spring (303) is installed on jointed shaft (301) of the interior bone chip pawl (3) with grand rib (101)；The bone chip pin
Nail (5) is altogether two, and its tip is oriented to the bottom surface substrates (102) of the top shell (1) between downwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710265258.8A CN106901817A (en) | 2017-04-21 | 2017-04-21 | Ankle-joint in-seam comminuted fracture fixator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710265258.8A CN106901817A (en) | 2017-04-21 | 2017-04-21 | Ankle-joint in-seam comminuted fracture fixator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106901817A true CN106901817A (en) | 2017-06-30 |
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ID=59209457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710265258.8A Pending CN106901817A (en) | 2017-04-21 | 2017-04-21 | Ankle-joint in-seam comminuted fracture fixator |
Country Status (1)
| Country | Link |
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| CN (1) | CN106901817A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110464439A (en) * | 2019-08-23 | 2019-11-19 | 迪恩医疗科技有限公司 | Limbs fracture inner fixing device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2075070U (en) * | 1990-10-19 | 1991-04-17 | 黄克勤 | External staple for irregular fracture |
| CN2493170Y (en) * | 2001-08-29 | 2002-05-29 | 韩庆海 | Paw shape external fixator for ulnar fracture and olecranal fracture |
| US20050059968A1 (en) * | 2003-09-16 | 2005-03-17 | Grant William Peter | Combination bone fixation/immobilization apparatus |
| CN101380246A (en) * | 2007-09-07 | 2009-03-11 | 唐上德 | Patella fixing device |
| US20130116692A1 (en) * | 2007-03-07 | 2013-05-09 | Wright Medical Technology, Inc. | External fixation |
-
2017
- 2017-04-21 CN CN201710265258.8A patent/CN106901817A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2075070U (en) * | 1990-10-19 | 1991-04-17 | 黄克勤 | External staple for irregular fracture |
| CN2493170Y (en) * | 2001-08-29 | 2002-05-29 | 韩庆海 | Paw shape external fixator for ulnar fracture and olecranal fracture |
| US20050059968A1 (en) * | 2003-09-16 | 2005-03-17 | Grant William Peter | Combination bone fixation/immobilization apparatus |
| US20130116692A1 (en) * | 2007-03-07 | 2013-05-09 | Wright Medical Technology, Inc. | External fixation |
| CN101380246A (en) * | 2007-09-07 | 2009-03-11 | 唐上德 | Patella fixing device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110464439A (en) * | 2019-08-23 | 2019-11-19 | 迪恩医疗科技有限公司 | Limbs fracture inner fixing device |
| CN110464439B (en) * | 2019-08-23 | 2023-12-22 | 迪恩医疗科技有限公司 | Internal fixing device for limb fracture |
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Application publication date: 20170630 |