CN106108995B - A kind of operation external member fixed for breastbone - Google Patents
A kind of operation external member fixed for breastbone Download PDFInfo
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- CN106108995B CN106108995B CN201610696572.7A CN201610696572A CN106108995B CN 106108995 B CN106108995 B CN 106108995B CN 201610696572 A CN201610696572 A CN 201610696572A CN 106108995 B CN106108995 B CN 106108995B
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- fixing piece
- breastbone
- draft arm
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- female
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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
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8061—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates specially adapted for particular bones
- A61B17/8076—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates specially adapted for particular bones for the ribs or the sternum
-
- 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
-
- 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
- A61B2017/681—Alignment, compression, or distraction mechanisms
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- 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)
- Prostheses (AREA)
Abstract
The invention discloses a kind of operation external members fixed for breastbone, including breastbone closing fixer, and are respectively used to the installation tool and extracting tool of installation and removal breastbone closing fixer；The breastbone closing fixer includes locking wheel, male fixing piece and female fixing piece.The male fixing piece of breastbone closing fixer of the invention and female fixing piece realize fixation by the engagement of the first helical teeth and the second helical teeth, and when installation, the engagement of helical teeth is reliable and stable；When dismounting, reduce the distance between male fixing piece and female fixing piece by removal tool, the first helical teeth can be squeezed by the second helical teeth at this time, release the meshing state between the first helical teeth and the second helical teeth, so as to effectively remove breastbone closing fixer, avoids on business fixing piece generation plastic deformation and breastbone closing fixer is caused to remove difficulty.
Description
Technical field
The present invention relates to a kind of operation external members fixed for breastbone.
Background technique
Open chest surgery is needed entire sternal incisions, is using entire by the conventional method that breastbone is closed at the end of operation
Breastbone is fixed with wire binding up and down, and the breastbone steel wire of left and right incision is taken out tightly by the suture needle of operative doctor steel wire of ining succession,
It is fixed after so that the breastbone cut is got up.There are following deficiencies for traditional fixation with steel wire breastbone method: 1, fixation is elastic
Be difficult hold, uniformly.2, it is easy to produce cutting of the steel wire to breastbone, causes breastbone to split, brings adverse consequences.3, wearing steel wire has
Certain difficulty.
Based on this, breastbone closing fixer gradually obtains the favor of more and more doctors, current breastbone closing fixer
With male fixing piece and female fixing piece, the inside of the outside of male fixing piece and female fixing piece is equipped with mutually matched sawtooth, and public affairs are solid
Part is determined equipped with locking slot, the interior rotatable locking wheel of setting of locking slot.By rotating locking wheel, the elasticity of public fixing piece is utilized
It deforms to make male fixing piece and female fixing piece mutually lock or be detached from.But find in practical applications, since breastbone heals
It takes a long time, it is therefore possible to cause public fixing piece to generate plastic deformation, eventually leads to breastbone closing fixer and be difficult to
The case where dismounting, occurs.Therefore it is necessary to the structures to breastbone closing fixer and its installation, extracting tool to improve for pole.
Summary of the invention
The object of the present invention is to provide a kind of easy to operate, the safe and reliable hands fixed for breastbone of installing and dismounting
Art external member.
Realizing the technical solution of the object of the invention is: a kind of operation external member fixed for breastbone, including breastbone close
Hold together fixator, and is respectively used to the installation tool and extracting tool of installation and removal breastbone closing fixer；The breastbone closes
Holding together fixator includes locking wheel, male fixing piece and female fixing piece；The public affairs fixing piece includes that elastic plug and setting are inserted in elasticity
One end of head and the first claw type extended downwardly hook plate, and the middle part of elastic plug is equipped with locking slot；The locking slot is inserted in elasticity
Another end opening of head, and open end is equipped with guide groove；The middle part of the locking slot is equipped with and can match with locking wheel
Locking hole；The two sides of the public affairs fixing piece, which are equipped with to the first claw type, hooks inclined first helical teeth in plate one end；First claw type
The junction at the top and elastic plug that hook plate, which is equipped with, pushes away slot；Mother's fixing piece includes socket and one end bottom that socket is arranged in
Portion and the second claw type extended downwardly hook plate；The socket is equipped with the slot matched with elastic plug, and the two sides of slot are set
Oriented second claw type hooks inclined second helical teeth in plate one end.
Fin is equipped with below first helical teeth of the elastic plug of the public fixing piece of the breastbone closing fixer；It is described female solid
The lower section for determining the second helical teeth of the socket of part is equipped with the dovetail groove matched with fin.
The elastic plug of the public fixing piece of the breastbone closing fixer is equipped with first positioning hole and screw hole；Female fixing piece
The upper surface of socket be respectively provided with a positioning groove by the two sides of one end that the second claw type hooks plate；Second claw type hooks plate
Top is equipped with second location hole；The installation tool includes crossbeam, male fixing piece draft arm and female fixing piece draft arm；The public affairs
The top of fixing piece draft arm and female fixing piece draft arm is slidably connected with crossbeam；The crossbeam is equipped with the first rack gear；Institute
It states and is equipped with the first non-return mechanism that can be matched with rack gear at the top of male fixing piece draft arm and female fixing piece draft arm；It is described
The first driving mechanism is additionally provided at the top of public fixing piece draft arm；The bottom of the public affairs fixing piece draft arm be equipped with can respectively with public affairs
The positioning convex platform and fastening screw that the first positioning hole and screw hole of fixing piece match；The bottom court of mother's fixing piece draft arm
The female fixing piece locating slot that can be matched with female fixing piece is equipped with to the side of male fixing piece draft arm；Mother's fixing piece positioning
The top of slot is equipped with two positioning screws that can be matched respectively with two positioning grooves of female fixing piece；Mother's fixing piece is fixed
The lower section of position slot is equipped with the positioning column that can be matched with the second location hole of female fixing piece.
First non-return mechanism of the installation tool includes the first non-return clamp and torsional spring；In the first non-return clamp
Portion and male fixing piece draft arm or female fixing piece draft arm are hinged；One end of the torsional spring be against public fixing piece draft arm or
On female fixing piece draft arm, the other end resists one end of the first non-return clamp, and the other end of the first non-return clamp is equipped with can be with the
The hook part of one rack gear cooperation.
First driving mechanism of the installation tool includes first gear and the first knob；The first gear rotation setting
It is engaged on public fixing piece draft arm, and with the first rack gear；First knob is fixed in the shaft of first gear.
The extracting tool includes main body guide rod and movable push bar；One end end of the main body guide rod is equipped with can be with
The guide pad that the guide groove of public fixing piece matches；One end of the movable push bar is slidably connected with main body guide rod, the other end
End be equipped with can be with the pushing block for pushing away slot and matching of public fixing piece.
The two sidewalls of the guide groove of the elastic plug of the public fixing piece of the breastbone closing fixer are inclined-plane；The disassembly
The two sides of the outer end of the guide pad of the main body guide rod of tool are equipped with inclined-plane.
The extracting tool further includes the second driving mechanism for driving movable push bar to slide on main body guide rod.
Second driving mechanism of the extracting tool includes the second rack gear, second gear and the second knob；Second tooth
Item is arranged on main body guide rod；The second gear is rotatably arranged on movable push bar, and is engaged with the second rack gear；Described
Two knobs are fixed in the shaft of second gear.
The extracting tool further includes the second non-return mechanism；Second non-return mechanism includes the second non-return clamp and second
Torsional spring；The middle part of the second non-return clamp and movable push bar are hinged；One end of second torsional spring is against on movable push bar, separately
One end resists one end of the second non-return clamp, and the other end of the second non-return clamp is equipped with the hook part that can cooperate with the second rack gear.
Using above-mentioned technical proposal, the present invention has the following beneficial effects: the breastbone closing fixer that (1) is of the invention
Male fixing piece and female fixing piece realize fixation by the engagement of the first helical teeth and the second helical teeth, when installation, the engagement of helical teeth
It is reliable and stable；When dismounting, the distance between male fixing piece and female fixing piece are reduced by removal tool, the first helical teeth can at this time
It is squeezed by the second helical teeth, releases the meshing state between the first helical teeth and the second helical teeth, so as to effectively remove breastbone
Close up fixator, simply, easily and fast, avoids on business fixing piece generation plastic deformation and breastbone closing fixer is caused to be removed
It is difficult.
(2) fin of the male fixing piece of breastbone closing fixer of the invention is matched with the dovetail groove of female fixing piece, is made
The upper and lower position for obtaining male fixing piece and female fixing piece is also fixed, can be more stable after keeping breastbone closing fixer fixed.
(3) upper surface of the socket of female fixing piece of breastbone closing fixer of the invention hooks one end of plate by the second claw type
Two sides be respectively provided with a positioning groove, the top that the second claw type hooks plate is equipped with location hole, this structure make female fixing piece with
Operation of the installation tool in cooperation is simpler, and the structure of installation tool also can greatly be simplified, and reduces manufacturing cost.
(4) installation tool of the invention is provided with the first non-return mechanism to prevent male fixing piece draft arm and female fixing piece from leading
Draw arm rollback, can be reduced the set-up time, make to operate more convenient.
(5) installation tool of the invention is provided with the first driving mechanism to drive public fixing piece draft arm sliding on crossbeam
It is dynamic, further facilitate operation.
(6) two sidewalls of the guide groove of the elastic plug of the public fixing piece of breastbone closing fixer of the invention are inclined-plane,
The two sides of the outer end of the guide pad of the main body guide rod of extracting tool are equipped with inclined-plane, can play better guiding role.
(7) extracting tool of the invention is provided with the second driving mechanism to drive movable push bar sliding on main body guide rod
It is dynamic, make to operate more convenient.
(8) extracting tool of the invention is provided with the second non-return mechanism to prevent movable push bar from retracting, when can be reduced disassembly
Between, and further facilitate operation.
Detailed description of the invention
In order that the present invention can be more clearly and readily understood, right below according to specific embodiment and in conjunction with attached drawing
The present invention is described in further detail, wherein
Fig. 1 is the structural schematic diagram of breastbone closing fixer of the invention.
Fig. 2 is the structural schematic diagram of the public fixing piece of breastbone closing fixer of the invention.
Fig. 3 is the structural schematic diagram of female fixing piece of breastbone closing fixer of the invention.
Fig. 4 is the structural schematic diagram that installation tool of the present invention is matched with breastbone closing fixer.
Fig. 5 is the structural schematic diagram of installation tool of the invention.
Fig. 6 is the top view of Fig. 5.
Fig. 7 is the structural schematic diagram that extracting tool of the invention is matched with breastbone closing fixer.
Fig. 8 is the structural schematic diagram of extracting tool of the invention.
Fig. 9 is the top view of extracting tool of the invention.
Specific embodiment
(embodiment 1)
See Fig. 1 to Fig. 9, the operation external member fixed for breastbone of the present embodiment, including breastbone closing fixer 1,
And it is respectively used to the installation tool 2 and extracting tool 3 of installation and removal breastbone closing fixer 1.
Breastbone closing fixer 1 includes locking wheel, male fixing piece 11 and female fixing piece 12.Public fixing piece 11 includes that elasticity is inserted
First 111 hook plate 112 with the first claw type that one end of elastic plug 111 is arranged in and extends downwardly, and the middle part of elastic plug 111 is set
There is locking slot 1111.Locking slot 1111 elastic plug 111 another end opening, and open end be equipped with guide groove
1112.The middle part of locking slot 1111 is equipped with the locking hole 1113 that can be matched with locking wheel.The two sides of public fixing piece 11 be equipped with to
First claw type hooks inclined first helical teeth 1114 in 112 one end of plate.First claw type hooks the top of plate 112 and the company of elastic plug 111
The place of connecing is equipped with and pushes away slot 1121.Female fixing piece 12 include socket 121 and one end bottom of socket 121 is set and is extended downwardly the
Two claw types hook plate 122.Socket 121 is equipped with the slot 1211 matched with elastic plug 111, and the two sides of slot 1211 are equipped with
To.Second claw type hooks inclined second helical teeth 1212 in 122 one end of plate.The elasticity of the public fixing piece 11 of breastbone closing fixer 1 is inserted
Fin 1115 is equipped with below first 111 the first helical teeth 1114.The lower section of second helical teeth 1212 of the socket 121 of female fixing piece 12 is set
There is the dovetail groove 1213 matched with fin 1115.The elastic plug 111 of the public fixing piece 11 of breastbone closing fixer 1 is equipped with
First positioning hole 1116 and screw hole 1117.The upper surface of the socket 121 of female fixing piece 12 is by one end of the second claw type hook plate 122
Two sides are respectively provided with a positioning groove 1214.The top that second claw type hooks plate 122 is equipped with second location hole 1221.
Installation tool 2 includes crossbeam 21, male fixing piece draft arm 22 and female fixing piece draft arm 23.Public fixing piece draft arm
22 and the top of female fixing piece draft arm 23 be slidably connected with crossbeam 21.Crossbeam 21 is equipped with the first rack gear 211.Public fixing piece
The top of draft arm 22 and female fixing piece draft arm 23 is equipped with the first non-return mechanism 24 that can be matched with rack gear.Public fixing piece
The top of draft arm 22 is additionally provided with the first driving mechanism 25.The bottom of public fixing piece draft arm 22 be equipped with can respectively with public fixing piece
The positioning convex platform 221 and fastening screw 222 that 11 first positioning hole 1116 and screw hole 1117 matches.Female fixing piece draft arm 23
Bottom towards the side of male fixing piece draft arm 22 equipped with the female fixing piece locating slot 231 that can be matched with female fixing piece 12.
It is fixed that the top of female fixing piece locating slot 231 is equipped with two for can matching respectively with two positioning grooves 1214 of female fixing piece 12
Position screw 232.The lower section of female fixing piece locating slot 231, which is equipped with, to determine with what the second location hole 1221 of female fixing piece 12 matched
Position column 233.First non-return mechanism 24 includes the first non-return clamp 241 and torsional spring.The middle part of first non-return clamp 241 is fixed with public affairs
Part draft arm 22 or female fixing piece draft arm 23 are hinged.One end of torsional spring is against male fixing piece draft arm 22 or female fixing piece
On draft arm 23, the other end resists one end of the first non-return clamp 241, and the other end of the first non-return clamp 241 is equipped with can be with the
The hook part of one rack gear 211 cooperation.First driving mechanism 25 includes first gear and the first knob 251.First gear rotation setting
It is engaged on public fixing piece draft arm 22, and with the first rack gear 211.First knob 251 is fixed in the shaft of first gear.
Extracting tool 3 includes main body guide rod 31 and movable push bar 32.One end end of main body guide rod 31 is equipped with can be with
The guide pad 311 that the guide groove 1112 of public fixing piece 11 matches.One end of movable push bar 32 and the sliding of main body guide rod 31 connect
It connects, the end of the other end is equipped with can be with the pushing block 321 for pushing away slot 1121 and matching of public fixing piece 11.Breastbone closing fixer 1
The two sidewalls of the guide groove 1112 of the elastic plug 111 of public fixing piece 11 are inclined-plane.The main body guide rod 1 of extracting tool 3 is led
Inclined-plane is equipped with to the two sides of the outer end of block 11.Extracting tool 3 further includes that driving movable push bar 32 is sliding on main body guide rod 31
The second dynamic driving mechanism 33.Second driving mechanism 33 includes the second rack gear 331, second gear and the second knob 332.Second tooth
Item 331 is arranged on main body guide rod 31.Second gear is rotatably arranged on movable push bar 32, and is engaged with the second rack gear 331.
Second knob 332 is fixed in the shaft of second gear.Extracting tool 3 further includes the second non-return mechanism 34.Second non-return mechanism
34 include the second non-return clamp 341 and the second torsional spring.The middle part of second non-return clamp 341 and movable push bar 32 are hinged.Second turns round
One end of spring is against on movable push bar 32, and the other end resists one end of the second non-return clamp 341, the second non-return clamp 341 it is another
One end is equipped with the hook part that can cooperate with the second rack gear 331.
The principle of the present invention is: when installation, first distinguishing the male fixing piece 11 of breastbone closing fixer 1 and female fixing piece 12
It navigates on the male fixing piece draft arm 22 and female fixing piece draft arm 23 of installation tool 2, positions the first of public fixing piece 11
Hole 1116 matches with the positioning convex platform 221 of male fixing piece draft arm 22, the mother of female fixing piece 12 and female fixing piece draft arm 23
Fixing piece locating slot 231 matches, the positioning column 233 of the second location hole 1221 of female fixing piece 12 and female fixing piece draft arm 23
It matches；Then two positioning on the fastening screw 222 and female fixing piece draft arm 23 on male fixing piece draft arm 22 are tightened
Screw 232 matches fastening screw 222 with the screw hole 1117 of male fixing piece 11, two positioning screws 232 are fixed with mother respectively
Two positioning grooves 1214 of part 12 match；Then public fixing piece is driven to lead by the first driving mechanism 25 of installation tool 2
Draw arm 22 to move on crossbeam 21, so as to control between the male fixing piece 11 of breastbone closing fixer 1 and female fixing piece 12
Distance, adjust the width for opening breastbone, adjust to suitable position, it is by the locking wheel of breastbone closing fixer 1 that public affairs are solid
Determine part 11 and female fixing piece 12 is locked, finally separates installation tool 2 with breastbone closing fixer 1.
When disassembly, extruding of the locking wheel of breastbone closing fixer 1 to public fixing piece 11 is first released.If public fixing piece 11
First helical teeth 1114 can be automatically disengaged from the second helical teeth 1212 of female fixing piece 12 by elasticity, then directly remove public fixing piece
11 and female fixing piece 12.If public fixing piece 11 produces plastic deformation, by the guide pad of the main body guide rod 31 of extracting tool 3
311 match with the guide groove 1112 of public fixing piece 11, and the pushing block of movable push bar 32 321 and public fixing piece 11 are pushed away slot
1121 match；Then it drives movable push bar 32 to move on main body guide rod 31 by the second driving mechanism 33, makes public fixation
The distance between part 11 and female fixing piece 12 further decrease, and the first helical teeth 1114 of male fixing piece 11 can be fixed by mother at this time
Second helical teeth 1212 of part 12 squeezes, and releases the meshing state between the first helical teeth 1114 and the second helical teeth 1212, to have
The male fixing piece 11 of the dismounting of effect and female fixing piece 12.
Particular embodiments described above has carried out further in detail the purpose of the present invention, technical scheme and beneficial effects
It describes in detail bright, it should be understood that the above is only a specific embodiment of the present invention, is not intended to restrict the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in guarantor of the invention
Within the scope of shield.
Claims (9)
1. a kind of operation external member fixed for breastbone, it is characterised in that: including breastbone closing fixer (1), Yi Jifen
The installation tool (2) and extracting tool (3) of breastbone closing fixer (1) Yong Yu not mounted and dismounted；The breastbone is fixed
Device (1) includes locking wheel, male fixing piece (11) and female fixing piece (12)；The public affairs fixing piece (11) includes elastic plug (111)
With the one end being arranged in elastic plug (111) and the first claw type extended downwardly hooks plate (112), the middle part of elastic plug (111)
Equipped with locking slot (1111)；The locking slot (1111) and sets in another end opening of elastic plug (111) on open end
There are guide groove (1112)；The middle part of the locking slot (1111) is equipped with the locking hole (1113) that can be matched with locking wheel；It is described
The two sides of public fixing piece (11) are equipped with to the first claw type and hook inclined first helical teeth (1114) in plate (112) one end；First pawl
The junction at top and elastic plug (111) that shape hooks plate (112), which is equipped with, pushes away slot (1121)；Mother's fixing piece (12) includes inserting
Seat (121) and the second claw type hook plate (122) that one end bottom in socket (121) is set and is extended downwardly；The socket (121)
It is equipped with the slot (1211) matched with elastic plug (111), the two sides of slot (1211), which are equipped with to the second claw type, hooks plate
(122) inclined second helical teeth (1212) in one end；The extracting tool (3) includes main body guide rod (31) and movable push bar
(32)；One end end of the main body guide rod (31) is equipped with and can lead with what the guide groove (1112) of public fixing piece (11) matched
To block (311)；One end of the movable push bar (32) is slidably connected with main body guide rod (31), and the end of the other end is equipped with can be with
The pushing block (321) for pushing away slot (1121) and matching of public fixing piece (11).
2. a kind of operation external member fixed for breastbone according to claim 1, it is characterised in that: the breastbone closes
Hold together below the first helical teeth (1114) of the elastic plug (111) of the public fixing piece (11) of fixator (1) and is equipped with fin (1115)；Institute
The lower section for stating the second helical teeth (1212) of the socket (121) of female fixing piece (12) is equipped with the dovetail groove matched with fin (1115)
(1213)。
3. a kind of operation external member fixed for breastbone according to claim 1, it is characterised in that: the breastbone closes
The elastic plug (111) for holding together the public fixing piece (11) of fixator (1) is equipped with first positioning hole (1116) and screw hole (1117)；It is female
It is recessed that the two sides of one end that the upper surface of the socket (121) of fixing piece (12) leans on the second claw type to hook plate (122) are respectively provided with a positioning
Slot (1214)；The top that second claw type hooks plate (122) is equipped with second location hole (1221)；The installation tool (2) includes
Crossbeam (21), male fixing piece draft arm (22) and female fixing piece draft arm (23)；The male fixing piece draft arm (22) and mother are solid
The top for determining part draft arm (23) is slidably connected with crossbeam (21)；The crossbeam (21) is equipped with the first rack gear (211)；It is described
The the first non-return machine that can be matched with rack gear is equipped at the top of male fixing piece draft arm (22) and female fixing piece draft arm (23)
Structure (24)；The first driving mechanism (25) are additionally provided at the top of the public affairs fixing piece draft arm (22)；The public affairs fixing piece draft arm
(22) bottom is equipped with the positioning that can be matched respectively with the first positioning hole (1116) of public fixing piece (11) and screw hole (1117)
Boss (221) and fastening screw (222)；The male fixing piece draft arm (22) of bottom direction of mother's fixing piece draft arm (23)
Side is equipped with the female fixing piece locating slot (231) that can be matched with female fixing piece (12)；Mother's fixing piece locating slot (231)
Top is equipped with two positioning screws (232) that can be matched respectively with two positioning grooves (1214) of female fixing piece (12)；Institute
The lower section for stating female fixing piece locating slot (231) is equipped with the positioning that can be matched with the second location hole (1221) of female fixing piece (12)
Column (233).
4. a kind of operation external member fixed for breastbone according to claim 3, it is characterised in that: the erector
The first non-return mechanism (24) for having (2) includes the first non-return clamp (241) and torsional spring；In the first non-return clamp (241)
Portion and male fixing piece draft arm (22) or female fixing piece draft arm (23) are hinged；One end of the torsional spring is against public fixing piece and leads
Draw on arm (22) or female fixing piece draft arm (23), the other end resists one end of the first non-return clamp (241), the first non-return card
The other end of sub (241) is equipped with the hook part that can cooperate with the first rack gear (211).
5. a kind of operation external member fixed for breastbone according to claim 3, it is characterised in that: the erector
The first driving mechanism (25) for having (2) includes first gear and the first knob (251)；The first gear is rotatably arranged on public solid
Determine on part draft arm (22), and is engaged with the first rack gear (211)；First knob (251) is fixed on the shaft of first gear
On.
6. a kind of operation external member fixed for breastbone according to claim 1, it is characterised in that: the breastbone closes
The two sidewalls for holding together the guide groove (1112) of the elastic plug (111) of the public fixing piece (11) of fixator (1) are inclined-plane；The disassembly
The two sides of the outer end of the guide pad (11) of the main body guide rod (1) of tool (3) are equipped with inclined-plane.
7. a kind of operation external member fixed for breastbone according to claim 1, it is characterised in that: the disassembly work
Tool (3) further includes the second driving mechanism (33) for driving movable push bar (32) to slide on main body guide rod (31).
8. a kind of operation external member fixed for breastbone according to claim 7, it is characterised in that: the disassembly work
The second driving mechanism (33) for having (3) includes the second rack gear (331), second gear and the second knob (332)；Second rack gear
(331) it is arranged on main body guide rod (31)；The second gear is rotatably arranged on movable push bar (32), and with the second rack gear
(331) it engages；Second knob (332) is fixed in the shaft of second gear.
9. a kind of operation external member fixed for breastbone according to claim 7, it is characterised in that: the disassembly work
Having (3) further includes the second non-return mechanism (34)；Second non-return mechanism (34) includes that the second non-return clamp (341) and second are turned round
Spring；The middle part and movable push bar (32) of the second non-return clamp (341) are hinged；One end of second torsional spring is against activity and pushes away
On bar (32), the other end resists one end of the second non-return clamp (341), and the other end of the second non-return clamp (341) is equipped with can be with
The hook part of second rack gear (331) cooperation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610696572.7A CN106108995B (en) | 2016-08-19 | 2016-08-19 | A kind of operation external member fixed for breastbone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610696572.7A CN106108995B (en) | 2016-08-19 | 2016-08-19 | A kind of operation external member fixed for breastbone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106108995A CN106108995A (en) | 2016-11-16 |
| CN106108995B true CN106108995B (en) | 2019-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610696572.7A Active CN106108995B (en) | 2016-08-19 | 2016-08-19 | A kind of operation external member fixed for breastbone |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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