CN105193483B - Orthopaedics exterior fixing rack device - Google Patents
Orthopaedics exterior fixing rack device Download PDFInfo
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- CN105193483B CN105193483B CN201510707443.9A CN201510707443A CN105193483B CN 105193483 B CN105193483 B CN 105193483B CN 201510707443 A CN201510707443 A CN 201510707443A CN 105193483 B CN105193483 B CN 105193483B
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- end cap
- breach
- connecting rod
- cup
- screw thread
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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
- A61B17/60—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
- A61B17/6425—Devices extending alongside the bones to be positioned specially adapted to be fitted across a bone joint
-
- 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
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- 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
The invention discloses a kind of orthopaedics exterior fixing rack device, including clamping device, connecting rod and screw thread spicule；Clamping device includes the first end cap, the second end cap and bolt；The end cap of screw bolt passes first, pad and the second end cap, the first end cap, pad and the second end cap can be rotated along bolt；The first spring is placed between first end cap and pad, the first spring forms outside thrust between the first end cap and pad, and second spring is placed between the second end cap and pad, and second spring forms outside thrust between the second end cap and pad；First end cap and the second end cap are provided with the first breach, the second breach and the 3rd breach, and the diameter of the first breach is more than the diameter of the second breach, and the diameter of the second breach is more than the diameter of the 3rd breach, and the first breach is used for the bar that is clamped and connected；Second breach and the 3rd breach are used to clamp screw thread spicule.The present invention possess flexibility, diversity, stability, it is easy to operate, fixed effect is reliable the advantages of.
Description
Technical field
The present invention relates to medical instruments field, particularly a kind of orthopaedics exterior fixing rack device.
Background technology
The patient for the treatment of limb fracture, clinic operation formula include interior fixation and outer fixation at present, and Orthopaedic external fixator is bone
Section is clinical to carry out one of conventional medicine equipment of outer fixed operative treatment.
The exterior fixing rack device of international popular generally includes by the fixed pitman shaped, follows closely rod binding clasp, solid at present
Determine the associated components such as pin composition, nail rod binding clasp is used to step up pitman and fixed pin.
In Clinical practice, existing exterior fixing rack device does not have auxiliary reset function, reduction of the fracture behaviour in operation
Make complexity, need to dismantle fix bar and locking device repeatedly, operating time length, it is difficult to adapt to different type, different parts fracture
Clinical demand, need experienced clinician to be operated, the combination of existing fixed bone spicule and bone is unstable, it is postoperative easily
There is external fixing rack to loosen, solid failure, the common complication of the external fixer such as pin site infection, it is a variety of to influence union etc.
Deficiency.
The content of the invention
The brief overview on the present invention is given below, to provide the basic reason on certain aspects of the invention
Solution.It should be appreciated that this general introduction is not the exhaustive general introduction on the present invention.It is not intended to determine the key of the present invention
Or pith, nor is it intended to limit the scope of the present invention.Its purpose only provides some concepts in simplified form, with
This is as the preamble in greater detail discussed later.
The purpose of the embodiment of the present invention is the defects of being directed to above-mentioned prior art, there is provided a kind of easy to operate, fixed effect
Reliable orthopaedics exterior fixing rack device.
To achieve these goals, the present invention adopts the technical scheme that：
A kind of orthopaedics exterior fixing rack device, including clamping device, connecting rod and screw thread spicule；
The clamping device includes the first end cap, the second end cap and bolt；
The end cap of screw bolt passes first, pad and second end cap, first end cap, pad and the second end cap energy
It is enough to be rotated along the bolt；
The first spring, first spring shape between the first end cap and pad are placed between first end cap and pad
Into outside thrust, second spring is placed between second end cap and pad, the second spring is in the second end cap and pad
Between form outside thrust；
Described bolt one end is interior hexagonal recess, and for placing spanner, the other end is provided with nut or screw thread；
First end cap or the second end cap are provided with the first breach, the second breach and the 3rd breach, first breach
Diameter be more than the diameter of the second breach, the diameter of the second breach is more than the diameter of the 3rd breach, and first breach is used to press from both sides
Hold connecting rod；Second breach and the 3rd breach are used to clamp screw thread spicule.
Compared with prior art, the beneficial effects of the invention are as follows：
The reset and fixation that the device of the present invention is fractured suitable for Orthopedic Clinical operation.Basic module is simple, can be free
Various structural forms general in clinic at present are combined, all ages and classes, different parts, different classification of fracture mechanical rings can be met
Border, it is easy to operate, fixed effect is reliable, with it is current it is clinical in compared with the outrigger that uses, there is auxiliary reset function, overcome existing
Reduction of the fracture complex operation in operation, the defects of needing to dismantle fix bar and locking device repeatedly, it possess more preferable flexibility,
Diversity and stability, and frame process optimization is put in operation, reduces the replacement and fixation difficulty in operation, reduces operating time and wind
Danger, reduce the unstable slip for causing fixed thread spicule in needle track of combination of fixed bone spicule and bone, and improper stress institute
The external fixing rack of cause loosens, solid failure, the external fixer such as pin site infection, inflammatory reaction and postoperative pain it is common concurrent
Disease, promote union, meet fracture fixation biomechanics characteristic, it is good beneficial to early functional exercise, potential applicability in clinical practice.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is the structural representation of clamping device provided in an embodiment of the present invention；
Fig. 2 is the structural representation of multi-direction adjustable connecting rod provided in an embodiment of the present invention；
Fig. 3 is the structural representation of cancellous threads spicule provided in an embodiment of the present invention；
Fig. 4 is the structural representation of cortex bone screw thread spicule provided in an embodiment of the present invention；
Fig. 5 is upper-lower casing provided in an embodiment of the present invention and the structural representation of mode connects for screw；
Fig. 6 is Fig. 5 perspective view.
Fig. 7 is the structural representation of Fig. 5 connection connecting rods；
The structural representation of Fig. 8 auxiliary reset fixing devices provided in an embodiment of the present invention.
Reference：
1- nuts；The end caps of 2- first；3- pads；The end caps of 4- second；The breach of 5a- second；The breach of 5a- the 3rd；6- first is lacked
Mouthful；7- second springs；8- axle center screw thread；9- axle center；The adjustable connecting rod main bodys of 10-；The springs of 11- first；The cylinders of 12- first
Section；13- the first self-tapping screw sections；The cylindrical sections of 14- second；15- the second self-tapping screw sections；16- cylindrical sections；17- screws；
18- upper shells；19- lower houses；20- first connecting rods；The cup-and-ball joints of 21- first；The push rods of 22- first；The cup-and-ball joints of 23- second；
The push rods of 24- second；The fixtures of 25- first；The fixtures of 26- second；27- is latched；28- second connecting rods；29- axle center thread spacer.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, rather than whole embodiments.Described in the accompanying drawing of the present invention or a kind of embodiment
Element and the element that can be shown in one or more other accompanying drawings or embodiment of feature and feature be combined.Should
Pay attention to, for purposes of clarity, eliminated in accompanying drawing and explanation unrelated to the invention, known to persons of ordinary skill in the art
Part and the expression and description of processing.Based on the embodiment in the present invention, those of ordinary skill in the art are not paying creation
Property work under the premise of the every other embodiment that is obtained, belong to the scope of protection of the invention.
Referring to Fig. 1, a kind of orthopaedics exterior fixing rack device, including clamping device, connecting rod and screw thread spicule；
The clamping device includes the first end cap 2, the second end cap 4 and bolt；
The first end cap of screw bolt passes 2, the end cap 4 of pad 3 and second, the first end cap 2, the end cap 4 of pad 3 and second can
Rotated along bolt；
The first spring 11, the first spring 11 shape between the first end cap 2 and pad 3 are placed between first end cap 2 and pad 3
Into outside thrust, place second spring 7 between the second end cap 4 and pad 3, second spring 7 the second end cap 4 and pad 3 it
Between form outside thrust；
First end cap 2 and the second end cap 4 are provided with the first breach 6, the second breach 5a and the 3rd breach 5b, the first breach 6
Diameter be more than the second breach 5a diameter, the second breach 5a diameter is more than the 3rd breach 5b diameter, and the first breach 6 is used for
Be clamped and connected bar；Second breach 5a and the 3rd breach 5b is used to clamp screw thread spicule.
The first breach and second and third breach of end cap side of the present invention run through end cap, are arranged in a linear, can clamp diameter 5-
The screw thread spicule and connecting rod of 6mm different thicknesses.First spring and second spring, connection end cap and intermediate washer, it can hold
Pulling force is formed between lid and pad, after coordinating with connecting rod and screw thread spicule, compresses the first breach and second and third breach similar round hole
Road, Action of Gravity Field can be resisted, fixed clamping device, avoids dropping.
Specifically, the first breach 6, the second breach 5a and the 3rd breach 5b are equipped with the first end cap 2 and the second end cap 4,
First end cap 2 and the second end cap 4 are oppositely arranged；First end cap 2 and the second end cap 4 are hollow cylinder.Bolt one end is
Interior hexagonal recess, for placing spanner, the other end is provided with nut 1 or screw thread；
The first end cap and the second end cap of the present invention is circle, and size is identical, is symmetrical arranged.For hollow cylindrical, side
Face is provided with each two holes of size, and middle preset holes cooperatively form similar round hole with intermediate washer 3, and wherein macropore can clamp directly
Footpath 7-9mm connecting rod, aperture can clamp diameter 2-6mm screw thread spicule.Bolt, nut, by other accessory edges of clamping device
Axle center is fixed, and nut both ends are interior hexangle type, and both ends are symmetrical, can shorten after rotation along bolt, play pressurization fixation.
Specifically, the one side that the first end cap 2 and/or the second end cap 4 contact with pad 3 is provided with sawtooth, and the end face of pad 3 is set
There is the sawtooth being mutually twisted with the sawtooth on the first end cap 2 and/or the second end cap 4.
First end cap and/or the second end cap are provided with sawtooth with pad junction, and convenient occlusion is fixed.Can be in pad, both sides
Around be provided with sawtooth, with end cap pressurization coordinate after, formed occlusion fix.
Referring to Fig. 2, specifically, connecting rod is multi-direction adjustable connecting rod, including adjustable connecting rod main body 10；
At least one end of adjustable connecting rod main body 10 is provided with axle center 9, and the periphery of axle center 9 is provided with axle center screw thread 8；
After two connecting rods are connected by clamping device pressurizes, make two adjustable connecting rod masters by the screw thread of axle center 8
Body 10 is mutually twisted, and forms locking.
Specifically, adjustable connecting rod main body is made up of carbon or alloy material, length 100-500mm, a diameter of 6-
10mm.It can be made of aluminum alloy material.
The adjustable connecting rod of the present invention, both ends by threaded engagement, can planar angulation activity and fixation, multidirectional pass
Section position forms from the axle center screw thread and clamping device at connecting rod both ends witing, after cooperation two save connecting rods can along axis rotation and
Locking.Axle center screw thread is embedded in connecting rod both ends, in 360 degree of arrangements, after connection is pressurizeed between two connecting rods, can make by screw thread
Be mutually twisted, formed locking effect.The compressible axle center screw thread of clamping device, is allowed to be mutually twisted.Unclamp clamping device, two sections
Connecting rod can be along axis rotation and locking, and connecting rod can be through clamping device along this axle center into angular movement, after compressing clamping device, shape
Into locking effect.The connecting rod of the present invention always, can be engaged with multiphase connecting rod specification with clamping device.
Specifically, screw thread spicule is made up of medical alloy material, and its length is 100-200mm, a diameter of 2-6mm, multiple
The rear end backshank thickness of screw thread spicule is consistent, and the rear end backshank coordinates with clamping device.The screw thread of multiple specifications of the present invention
Spicule, rear end backshank are uniform thickness, are easy to coordinate with clamping device.Specifically, screw thread spicule includes cancellous threads spicule
With cortex bone screw thread spicule；The screw thread spicule needle body of the present invention is threaded, and stable fixation can be formed with bone.
Referring to Fig. 3, the cancellous threads spicule structures include the first cylindrical section 12, the first thread tapping spiral shell being sequentially connected
The cylindrical section 14 of line section 13 and second；
The front end of first cylindrical section 11 carries bone drill spiral angle；
The external diameter of first self-tapping screw section 13 is more than the diameter of the first cylindrical section 12, the spiral shell of the first self-tapping screw section 13
Line length is 20-70mm, and the bottom footpath of the first self-tapping screw section 13 is with taper.
First cylindrical section 12 is identical with the diameter of the second cylindrical section 14.
Referring to Fig. 4, the cortex bone screw thread spicule includes the second self-tapping screw 15 of front end and the cylindrical section 16 of rear end,
The front end of second self-tapping screw 15 is drill head helix angle degree, and the length of the second self-tapping screw 15 is 20-50mm, and bottom footpath band is bored
Degree.Specifically, screw 17, upper shell 18 are included referring to Fig. 5-Fig. 8, in addition to reseting fixture, the reseting fixture
With lower house 19, upper shell 18 and lower house 19 are sequentially provided with screw 17, upper shell 18 connects one end of first connecting rod 20, the
The other end of one connecting rod 20 connects the first cup-and-ball joint 21, and the first push rod 22, the one end of the first push rod 22 are provided with first connecting rod 20
The first cup-and-ball joint 21 is contradicted, the other end contradicts upper shell 18；Lower house 19 connects one end of second connecting rod 28, second connecting rod 28
The other end connect the second cup-and-ball joint 23, the second push rod 24, the one end of the second push rod 24 conflict second are provided with second connecting rod 28
Cup-and-ball joint 23, the other end contradict lower house 19；
When screw 17 unclamps, the first push rod 22 moves towards the side of upper shell 18, and the second push rod 24 is towards lower house 19
Move side so that first connecting rod 20 is active with the first cup-and-ball joint 21, the cup-and-ball joint of second connecting rod 28 and second
23 are active；
When screw 17 is locked, the first push rod 22 moves towards the side of the first cup-and-ball joint 21, and the second push rod 24 is towards the
Move the side of two cup-and-ball joint 23 so that the cup-and-ball joint 21 of first connecting rod 20 and first is in locking state, second connecting rod 24 and
Second cup-and-ball joint 23 is in locking state；
First cup-and-ball joint 21 connects the first fixture 25, and the second cup-and-ball joint 23 connects the second fixture 26, the first fixture 25
For the bar side that is clamped and connected, opposite side of second fixture 26 for the bar that is clamped and connected；On first fixture 25 and the second fixture 26
Lock 27 is equipped with, lock 27 is used to lock connecting rod.
The auxiliary reset fixing device of the present invention is used for the connecting rod for fixing Orthopaedic external fixator, and wherein auxiliary reset is consolidated
Determining device includes the connecting rod of a pair of interconnections, two cup-and-ball joints for being arranged on connecting rod side that can freely rotate, connection
Fixture on universal joint assembly.The present invention can realize optional position change of two fixtures in space, multiple so as to reach
Position fracture, interim or fixed for a long time effect, the present invention are simple in construction, easy to adjust.
The first connecting rod and second connecting rod of interconnection are made up of carbon or alloy material, first connecting rod and second connecting rod length
Spending specification limit is：A diameter of 6-10mm of 50-200mm, first connecting rod and second connecting rod.
Specifically, an inclined-plane, the first push rod 22 and the one end of the second push rod 24 are respectively equipped with upper shell 18 and lower house 19
Resist on corresponding inclined-plane, the contact surface of the first push rod 22 and the first cup-and-ball joint 21, the second push rod 24 and the second ball-and-socket close
The contact surface of section 23 is mat surface, for increasing frictional force.
Specifically, referring to Fig. 5 and Fig. 6, axle center thread spacer 29, axle center screw thread are provided between upper shell 18 and lower house 19
Two end faces up and down of pad 29 are provided with screw thread 30, and the lower section of upper shell 18 is provided with mutually to be engaged with the upper surface of axle center thread spacer 29
Screw thread, the top of lower house 19 is provided with the screw thread being mutually engaged with the lower surface of axle center thread spacer 29；
And/or first cup-and-ball joint 21 and the first cup-and-ball joint 23 can arbitrarily be moved in neutral position globally 60 °；
And/or first the length of push rod 22 and the second push rod 24 be 50-200mm.
The connecting portion of first connecting rod and second connecting rod of the present invention is with the axle center screw thread and pressure structure of connecting rod two end
Form, two section connecting rods can be along axis rotation and locking after cooperation.Axle center screw thread is embedded in connecting rod both ends, in 360 degree of arrangements.
Link joint feature of the present invention is pressue device, is pressurizeed by screw-driving, and when screw unclamps, housing flicks tiltedly
Face, internal push rod are moved to connecting portion, and two connecting rods and cup-and-ball joint are active；Screw lock, housing compress inclined-plane,
Internal push rod moves to both sides, and connecting rod and two cup-and-ball joints are locked.Cup-and-ball joint is connected with connecting rod, can be by inside connecting rod
Push rod held out against with frictional force, push rod and cup-and-ball joint contact position are matte, to increase frictional force.Fixture side and cup-and-ball joint
It is fixedly connected, opposite side can match with the connecting rod of external fixing rack, be connected as a single entity after lock locking with external fixing rack.
The connecting rod of the present invention includes first connecting rod and second connecting rod, and push rod includes the first push rod and the second push rod, and ball-and-socket closes
Section includes the first cup-and-ball joint and the second cup-and-ball joint.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Row etc.
With replacement；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technical scheme
Spirit and scope.
Claims (8)
1. a kind of orthopaedics exterior fixing rack device, it is characterised in that including clamping device, connecting rod and screw thread spicule；
The clamping device includes the first end cap, the second end cap and bolt；
The end cap of screw bolt passes first, pad and second end cap, first end cap, pad and the second end cap being capable of edges
The bolt to be rotated；
Place the first spring between first end cap and pad, first spring formed between the first end cap and pad to
Outer thrust, second spring is placed between second end cap and pad, the second spring is between the second end cap and pad
Form outside thrust；
First end cap and the second end cap are provided with the first breach, the second breach and the 3rd breach, first breach it is straight
Footpath is more than the diameter of the second breach, and the diameter of the second breach is more than the diameter of the 3rd breach, and first breach is used for the company of clamping
Extension bar；Second breach and the 3rd breach are used to clamp screw thread spicule；
The connecting rod is multi-direction adjustable connecting rod, including adjustable connecting rod main body；
At least one end of the adjustable connecting rod main body is provided with axle center, and the axle center periphery is provided with axle center screw thread；
After two connecting rods are connected by clamping device pressurizes, make two adjustable connecting rod main bodys mutual by axle center screw thread
Occlusion, form locking；
Also include auxiliary reset fixing device, the auxiliary reset fixing device includes screw, upper shell and lower house, the spiral shell
Nail on and be sequentially provided with upper shell and lower house, one end of the upper shell connection first connecting rod, the other end of the first connecting rod
The first cup-and-ball joint is connected, the first push rod is provided with the first connecting rod, described first push rod one end contradicts the first cup-and-ball joint,
The other end contradicts upper shell；One end of the lower house connection second connecting rod, the other end of the second connecting rod connect the second ball
Nest joint, the second connecting rod is interior to be provided with the second push rod, and described second push rod one end contradicts the second cup-and-ball joint, and the other end contradicts
Lower house；
When the screw unclamps, first push rod moves towards upper shell side, and second push rod is towards lower house one
Move side so that first connecting rod is active with the first cup-and-ball joint, and second connecting rod and the second cup-and-ball joint are in activity
State；
When the screw lock, first push rod moves towards the first cup-and-ball joint side, and second push rod is towards
Move two cup-and-ball joint sides so that first connecting rod and the first cup-and-ball joint are in locking state, second connecting rod and the second ball-and-socket
Joint is in locking state；
First cup-and-ball joint connects the first fixture, and second cup-and-ball joint connects the second fixture, and first fixture is used
In the bar side that is clamped and connected, opposite side of second fixture for the bar that is clamped and connected；On first fixture and the second fixture
Lock is equipped with, it is described to latch for locking connecting rod.
2. orthopaedics according to claim 1 exterior fixing rack device, it is characterised in that first end cap and the second end
Cover and be equipped with the first breach, the second breach and the 3rd breach, first end cap and the second end cap are oppositely arranged；
First end cap and the second end cap are hollow cylinder；
Described bolt one end is interior hexagonal recess, and for placing spanner, the other end is provided with nut or screw thread.
3. orthopaedics according to claim 1 exterior fixing rack device, it is characterised in that first end cap and/or
The one side that two end caps contact with pad is provided with sawtooth, the end face of the pad be provided with the first end cap and/or the second end cap
The sawtooth that sawtooth is mutually twisted.
4. orthopaedics according to claim 1 exterior fixing rack device, it is characterised in that the adjustable connecting rod main body
It is made up of carbon or alloy material, length 100-500mm, a diameter of 6.0-10.0mm.
5. orthopaedics according to claim 1 exterior fixing rack device, it is characterised in that the screw thread spicule is by medical conjunction
Golden material is made, and its length is 100-200mm, a diameter of 2.0-6.0mm, and the rear end backshank thickness of multiple screw thread spicules is consistent,
The rear end backshank coordinates with clamping device.
6. orthopaedics according to claim 5 exterior fixing rack device, it is characterised in that the screw thread spicule includes spongiosa
Bone thread spicule and cortex bone screw thread spicule；
The cancellous threads spicule structures include the first cylindrical section, the first self-tapping screw section and the second cylinder being sequentially connected
Section；
The front end of first cylindrical section carries bone drill spiral angle；
The external diameter of the first self-tapping screw section is more than the diameter of first cylindrical section, the first self-tapping screw section
Reach is 20-70mm, the bottom footpath band taper of the first self-tapping screw section；
The cortex bone screw thread spicule includes the second self-tapping screw of front end and the cylindrical section of rear end, the second thread tapping spiral shell
The front end of line is drill head helix angle degree, and the second self-tapping screw length is 20-50mm, and bottom footpath is with taper.
7. the orthopaedics exterior fixing rack device according to claim any one of 1-6, it is characterised in that
An inclined-plane is respectively equipped with the upper shell and lower house, first push rod and second push rod one end are resisted corresponding
On inclined-plane, the contact surface of the contact surface of first push rod and the first cup-and-ball joint, second push rod and the second cup-and-ball joint
It is mat surface, for increasing frictional force.
8. orthopaedics according to claim 7 exterior fixing rack device, it is characterised in that the upper shell and lower house it
Between be provided with axle center thread spacer, two end faces up and down of the axle center thread spacer are provided with screw thread, are provided with below the upper shell
The screw thread being mutually engaged with the upper surface of the axle center thread spacer, the lower house top is provided with and the axle center thread spacer
The screw thread that lower surface is mutually engaged；
And/or first cup-and-ball joint and the first cup-and-ball joint can arbitrarily move in neutral position globally 60 °；
And/or the length of first push rod and the second push rod is 50-100mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510707443.9A CN105193483B (en) | 2015-10-27 | 2015-10-27 | Orthopaedics exterior fixing rack device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510707443.9A CN105193483B (en) | 2015-10-27 | 2015-10-27 | Orthopaedics exterior fixing rack device |
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| CN105193483A CN105193483A (en) | 2015-12-30 |
| CN105193483B true CN105193483B (en) | 2018-02-13 |
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| CN201510707443.9A Active CN105193483B (en) | 2015-10-27 | 2015-10-27 | Orthopaedics exterior fixing rack device |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106646940A (en) * | 2016-11-29 | 2017-05-10 | 无锡特恒科技有限公司 | Universal connection arm |
| CN111166491A (en) * | 2020-03-11 | 2020-05-19 | 北京梅德厚普科技有限公司 | Surgery operation double-ball fixing device |
| CN112716674B (en) * | 2021-01-06 | 2024-05-17 | 北京中安泰华科技有限公司 | Multipurpose fixing clamp |
| CN114002862A (en) * | 2021-11-02 | 2022-02-01 | 北京蜂巢世纪科技有限公司 | Intelligent glasses |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101296665A (en) * | 2005-06-21 | 2008-10-29 | 新特斯有限责任公司 | Adjustable fixation clamp and method |
| CN201558160U (en) * | 2009-12-01 | 2010-08-25 | 常州鼎健医疗器械有限公司 | Adjustable spinal rod |
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| FR2787697B1 (en) * | 1998-12-29 | 2001-06-15 | France Etat | MONOLATERAL ORTHOPEDIC EXTERNAL FIXATION DEVICE FOR BONE FRACTURE IMMOBILIZATION |
| US7004943B2 (en) * | 2002-02-04 | 2006-02-28 | Smith & Nephew, Inc. | Devices, systems, and methods for placing and positioning fixation elements in external fixation systems |
| ES2246744B1 (en) * | 2005-10-11 | 2006-12-01 | Implantvet, S.L. | ARTICULATION FOR MUTUAL SOLIDARIZATION BETWEEN BARS AND / OR NEEDLES IN AN EXTERNAL FIXING DEVICE FOR THE REDUCTION OF OSE FRACTURES. |
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| IT1396145B1 (en) * | 2009-11-05 | 2012-11-16 | Citieffe Srl | MULTI-PURPOSE EXTERNAL FIXER. |
| EP2465453B1 (en) * | 2010-12-14 | 2015-04-08 | Stryker Trauma SA | Fixation clamp |
| CN202179587U (en) * | 2011-07-22 | 2012-04-04 | 天津市新中医疗器械有限公司 | Multifunctional external fixator with lengthening and pressurizing functions |
| CN202235619U (en) * | 2011-09-16 | 2012-05-30 | 江苏百得医疗器械有限公司 | Multifunctional orthopaedic external fixation support |
| CN202409097U (en) * | 2011-11-30 | 2012-09-05 | 天津市康尔医疗器械有限公司 | External fixation support in orthopedics department |
| CN202821563U (en) * | 2012-07-16 | 2013-03-27 | 顾军 | Orthopedics micro-motion three-dimensional external fixation system |
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| CN101296665A (en) * | 2005-06-21 | 2008-10-29 | 新特斯有限责任公司 | Adjustable fixation clamp and method |
| CN201558160U (en) * | 2009-12-01 | 2010-08-25 | 常州鼎健医疗器械有限公司 | Adjustable spinal rod |
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