CN107361836A - A kind of memorial alloy internal fixation device - Google Patents
A kind of memorial alloy internal fixation device Download PDFInfo
- Publication number
- CN107361836A CN107361836A CN201710384860.3A CN201710384860A CN107361836A CN 107361836 A CN107361836 A CN 107361836A CN 201710384860 A CN201710384860 A CN 201710384860A CN 107361836 A CN107361836 A CN 107361836A
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- China
- Prior art keywords
- support arm
- mainboard body
- fixation device
- arm
- internal fixation
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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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00831—Material properties
- A61B2017/00862—Material properties elastic or resilient
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00831—Material properties
- A61B2017/00867—Material properties shape memory effect
-
- 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)
- 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)
- Thermotherapy And Cooling Therapy Devices (AREA)
- Supports For Pipes And Cables (AREA)
Abstract
The invention discloses a kind of memorial alloy internal fixation device, include mainboard body and be integrally formed multigroup anchor ear arm in mainboard body both sides；Cooling pipe is provided with mainboard body and each group the anchor ear arm, the external wall of mainboard is provided with the inlet opening and fluid hole being connected respectively with cooling pipe both ends.By setting cooling pipe inside memorial alloy internal fixation device, less than 5 DEG C of cooling water can be passed through in the forward direction cooling pipe for removing internal fixation device, internal fixation device is uniformly cooled down, beneficial to smoothly and rapidly remove internal fixation device, further shorten operating time.
Description
Present patent application is：
It is entitled：A kind of memorial alloy internal fixation device external member
Application No.：2015109929910
The applying date is：2015.12.24
Patent application divisional application.
Technical field
The invention belongs to medical instruments field, and in particular to a kind of memorial alloy internal fixation device structure.
Background technology
Marmem has the SME related to temperature, and hardness reduces easily modeling when being placed in cold medium
Shape, when temperature raises, restoring force and screen resilience are produced, voluntarily returns back to original shape.Why marmem, which has, becomes
Shape recovery capability, it is because the thermoelastic martensitic transformation that material internal occurs in deformation process, has in marmem
Two kinds of phases：High-temperature-phase austenite phase, low-temperature phase martensitic phase, according to different heating power load-up conditions, marmem is presented
Go out two kinds of performances.Because its is easy for installation, operating time can be shortened, reduce patient suffering, current increasing internal fixation device
Marmem is employed to make.But current memorial alloy internal fixation device still suffers from following defect, after injury of the bone healing
, it is necessary to less than 5 DEG C of sterile saline gauze equably cold compress internal fixation device when removing internal fixation device, internal fixation device is opened
On anchor ear arm, internal fixation device could be taken out, be bonded completely with each position of internal fixation device due to being difficult to using gauze,
Internal fixation device is seted to still suffer from difficulty from being cooled completely when removing internal fixation device, extend operating time.
The content of the invention
The technical problems to be solved by the invention are：In view of the deficienciess of the prior art, provide a kind of new structure
Memorial alloy internal fixation device external member.
To realize the purpose of the present invention, it is achieved using following technical scheme：A kind of memorial alloy internal fixation device external member,
Include memorial alloy internal fixation device, cool down main frame, and the joint of connection cooling main frame and memorial alloy internal fixation device；
The memorial alloy internal fixation device includes mainboard body and is integrally formed multigroup anchor ear arm in mainboard body both sides；It is described
Cooling pipe is provided with mainboard body and each group anchor ear arm, the external wall of mainboard is provided with to be connected with cooling pipe both ends respectively
Inlet opening and fluid hole；
Described inlet opening and fluid hole are located at one end end position of mainboard body；The cooling pipe only includes a pipeline,
Cooling pipe is arranged along mainboard body edge, and extends to the outer end of anchor ear arm；
The mainboard body and anchor ear arm, which are internally located in the range of cooling pipe surrounds, is provided with the copper material bed of material, mainboard body and anchor ear
Arm outer layer is shape memory alloy material layer；
Anchor ear arm described in every group includes the first support arm and second support arm for being connected to mainboard body both sides；The first support arm
End form connection jaws, connection clip is intraoral to form more than two positioning shoulders；One side of the first support arm
First support arm perpendicular with it is connected with, the end of the first support arm fastens with another adjacent first support arm to be connected
Connect；The end of first support arm forms connection dop, and adjacent first support arm side forms the company being engaged with being connected dop
Connect bayonet socket；
The end of the second support arm forms the connecting clip being engaged with being connected jaws, and the second support arm connects with mainboard body
Bent over arms of the place for obtuse angle shape is connect, side of the bent over arms away from mainboard body is molded the extension of oriented mainboard body direction extension
Portion, a recess is formed between extension and bent over arms；Close to the side integrally connected of extension side in the second support arm
There is second support arm perpendicular with it, the end of the second support arm is fastened and connected with another adjacent second support arm；Second
The end of support arm forms connection dop, and adjacent second support arm side forms the connects bayonet socket being engaged with being connected dop；
The mainboard body is in elongated rectangular shape shape, and mainboard body intermediary form has a rectangular aperture of a strip, and mainboard body is upper
The tensioned lines of more than three are connected between two long sides of rectangular aperture, described tensioned lines one end is fixedly connected with a long side,
The through hole passed through for the tensioned lines other end is formed on described mainboard body, the external wall of mainboard is then molded perpendicular to the position of through hole
There is the screw hole of connection lock-screw.Lock-screw is connected with screw hole by thread interference；
The cooling main frame includes housing, and a water storage cavity and one will be divided into by being provided with a metal partion (metp) in housing in housing
Individual electric chamber；Corresponding water storage cavity is provided with water filling port above the housing, is sealedly connected with lid on water filling port, under the housing
The position of the corresponding water storage cavity in side is provided with the connection-peg being connected with joint, has two fluid passages on connection-peg；The water storage cavity
Liquid pump is inside installed, the outlet of liquid pump is connected with a fluid passage；The electrically intracavitary is provided with refrigerating sheet, circuit board and storage
Battery, the huyashi-chuuka (cold chinese-style noodles) of the refrigerating sheet are connected on metal partion (metp)；The lateral wall that the housing corresponds to water storage cavity is provided with control liquid
The button switch of pump work, the side wall that the housing corresponds to electric chamber are provided with the toggle switch for controlling refrigerating sheet；The button
Switch, toggle switch, refrigerating sheet and battery are connected with circuit board respectively；Formed on the two side of the housing beneficial to grasping
At least one set of raised line；
Described joint include with connection-peg coordinate grafting grafting set, and be connected to grafting set lower section feed liquor intubation and
Return liquid intubation；Feed liquor intubation, return liquid intubation respectively with inlet opening, fluid hole grafting；Feed liquor is intubated and returned outside the end of liquid intubation
Wall is arranged with silica gel sheath；The feed liquor intubation and time liquid cannula end are also associated with sealing-plug.
Compared with prior art, the beneficial effects of the invention are as follows：It is cold by being set inside memorial alloy internal fixation device
But pipeline, less than 5 DEG C of cooling water can be passed through in the forward direction cooling pipe for removing internal fixation device, internal fixation device is obtained uniformly
Cooling, beneficial to smoothly and rapidly remove internal fixation device, further shorten operating time.
Brief description of the drawings
Fig. 1, Fig. 2 and Fig. 3 are the structural representations of internal fixation device.
Fig. 4 is the internal structure schematic diagram of internal fixation device deployed condition.
Fig. 5 is Fig. 4 A-A to structural representation.
Fig. 6 is to cool down structural representation when main frame is in confined state with joint.
Fig. 7 is to cool down structural representation when main frame is in released state with joint.
Fig. 8 is the internal structure schematic diagram for cooling down main frame.
1st, mainboard body；2nd, anchor ear arm；21st, first support arm；211st, jaws is connected；212nd, the first support arm；22nd, second
Arm；221st, connecting clip；222nd, the second support arm；223rd, bent over arms；224th, extension；3rd, inlet opening；4th, fluid hole；5th, cool down
Pipeline；6th, the copper material bed of material；7th, main frame is cooled down；71st, housing；72nd, water filling port；73rd, raised line；74th, button switch；75th, connection-peg；
76th, liquid pump；77th, refrigerating sheet；78th, circuit board；79th, battery；8th, joint；81st, grafting set；82nd, feed liquor is intubated；83rd, liquid is returned to insert
Pipe；9th, tensioned lines；91st, lock-screw.
Embodiment
The embodiment of the present invention is made a detailed explanation below according to accompanying drawing.
Embodiment 1
According to Fig. 1 to Fig. 8, the present embodiment is a kind of memorial alloy internal fixation device external member, is included fixed in memorial alloy
Device, cool down main frame 7, and the joint 8 of connection cooling main frame and memorial alloy internal fixation device.
The memorial alloy internal fixation device includes mainboard body 1 and is integrally formed multigroup anchor ear arm in mainboard body both sides
2；Be provided with cooling pipe 5 in mainboard body and each group the anchor ear arm, the external wall of mainboard provided with respectively with cooling pipe two
Hold the inlet opening 3 and fluid hole 4 being connected.
With reference to shown in Fig. 4, described inlet opening and fluid hole are located at one end end position of mainboard body；The cooling pipe
A pipeline is only included, cooling pipe is arranged along mainboard body edge, and extends to the outer end of anchor ear arm.
The mainboard body and anchor ear arm, which are internally located in the range of cooling pipe surrounds, is provided with the copper material bed of material 6, mainboard body
And anchor ear arm outer layer is shape memory alloy material layer.
Anchor ear arm described in every group includes the first support arm 21 and second support arm 22 for being connected to mainboard body both sides；It is described
The end of first support arm forms connection jaws 211, and connection clip is intraoral to form more than two positioning shoulders；The first support arm
A side be connected with first support arm 212 perpendicular with it, the end of the first support arm and adjacent another
First support arm is fastened and connected；The end of first support arm forms connection dop, and adjacent first support arm side forms and connected
The connects bayonet socket that dop is engaged.
The end of the second support arm forms the connecting clip 221 being engaged with being connected jaws, the second support arm with
Mainboard body junction is the bent over arms 223 of obtuse angle shape, and side of the bent over arms away from mainboard body is molded oriented mainboard body side
To the extension 224 of extension, a recess is formed between extension and bent over arms；Close to extension side in the second support arm
Side be connected with second support arm 222 perpendicular with it, the end of the second support arm and adjacent another second
Support arm is fastened and connected；The end of second support arm forms connection dop, and adjacent second support arm side is formed with being connected dop
The connects bayonet socket being engaged.
Described cooling pipe is without the extension so that produces deformation in bent over arms position when prizing extension.
After internal fixation device is installed to knochenbruch position, anchor ear arm recovers shape, two support arms of anchor ear arm under body temperature effect
Gradually clamp, to final position, the connecting clip of spline-simulating fastens with being connected jaws, at the same the first support arm, second
The first support arm of brace and adjacent position, second support arm fasten, and the globality of such internal fixation device is stronger, is not likely to produce deformation,
The situation that internal fixation device will not be got loose, reliability is high, hinders symphysis beneficial to knochenbruch.Extension in described second support arm
Portion is beneficial to pry open second support arm when removing internal fixation device, coordinates the bent over arms of obtuse angle shape, makes second support arm along bent over arms
Crooked place generation bending, so that connection dop can depart from connects bayonet socket, beneficial to solid in the smooth taking-up in time saving and energy saving ground
Determine device.
The mainboard body is in elongated rectangular shape shape, and mainboard body intermediary form has the rectangular aperture of a strip, mainboard body
The upper tensioned lines 9 that more than three are connected between two long sides of rectangular aperture, described tensioned lines one end is fixed with a long side
Connect, form the through hole passed through for the tensioned lines other end on described mainboard body, the external wall of mainboard is perpendicular to the position of through hole
Then form the screw hole of connection lock-screw 91.Lock-screw is connected with screw hole by thread interference.The mainboard
Rectangular aperture among body makes mainboard body have bigger deformation quantity, and so the dimension precision requirement of internal fixation device has been dropped
It is low, in the position of anchor ear arm clamping dynamics deficiency, locked by adjusting by lock-screw after tensioned lines to appropriate length
It is fixed, outwards deformed with suppressing mainboard body, strengthen the clamping dynamics of anchor ear arm.
With reference to shown in Fig. 6 to Fig. 8, the cooling main frame includes housing 71, and a metal partion (metp) is provided with housing by shell
It is divided into a water storage cavity and an electric chamber in vivo；Corresponding water storage cavity is provided with water filling port above the housing, on water filling port
Lid 72 is sealedly connected with, the position that water storage cavity is corresponded to below the housing is provided with the connection-peg 75 being connected with joint, connection-peg
It is upper that there are two fluid passages；Liquid pump 76 is installed, the outlet of liquid pump is connected with a fluid passage in the water storage cavity；It is described
Electric intracavitary is provided with refrigerating sheet 77, circuit board 78 and battery 79, and the huyashi-chuuka (cold chinese-style noodles) of the refrigerating sheet is connected on metal partion (metp)；Institute
State housing and correspond to the lateral wall of water storage cavity and the button switch 74 of control liquid pump work is installed, the housing corresponds to the side of electric chamber
Wall is provided with the toggle switch of control refrigerating sheet；The button switch, toggle switch, refrigerating sheet and battery respectively with circuit board
Connection；At least one set of raised line 73 beneficial to grasping is formed on the two side of the housing.
Described joint 8 includes the grafting set 81 for coordinating grafting with connection-peg, and is connected to entering for grafting set lower section
Liquid intubation 82 and return liquid intubation 83, feed liquor intubation, return liquid intubation respectively with inlet opening, fluid hole grafting；Feed liquor is intubated and returned liquid
The end sleeve of intubation is provided with silica gel sheath, is tightly connected beneficial to inlet opening, fluid hole.The feed liquor intubation and time liquid cannula end
Sealing-plug is also associated with, is extracted again when needing and cooling down internal fixation device, avoids cooling down the liquid outflow in main frame.Described joint
8 can correspondingly be selected according to inlet opening on internal fixation device, the specification of fluid hole, distance so that cooling main frame can with not
The internal fixation device adapted of same specification.
Before removing memorial alloy internal fixation device, the joint of corresponding specification is set on the connection-peg of cooling main frame, cold
But saline injection in the water storage cavity of main frame, refrigerating sheet is started by toggle switch and worked, physiological saline temperature is dropped to 5
Below DEG C, feed liquor intubation and the sealing-plug returned in liquid intubation on joint are then pulled out, feed liquor is intubated and returned liquid intubation and feed liquor
Hole, fluid hole docking, then press button switch and start liquid pump, the physiological saline through cooling circulates pair along cooling pipe
Internal fixation device is cooled down, and cooling main frame is removed after reaching requirement to internal fixation device temperature, pulls down internal fixation device.
Embodiment 2
According to Fig. 1 to Fig. 5, the present embodiment is a kind of memorial alloy internal fixation device, includes mainboard body 1 and is integrally formed
Multigroup anchor ear arm 2 in mainboard body both sides；Cooling pipe 5 is provided with mainboard body and each group the anchor ear arm, the mainboard is external
Wall is provided with the inlet opening 3 and fluid hole 4 being connected respectively with cooling pipe both ends.
With reference to shown in Fig. 4, described inlet opening and fluid hole are located at one end end position of mainboard body；The cooling pipe
A pipeline is only included, cooling pipe is arranged along mainboard body edge, and extends to the outer end of anchor ear arm.
The mainboard body and anchor ear arm, which are internally located in the range of cooling pipe surrounds, is provided with the copper material bed of material 6, mainboard body
And anchor ear arm outer layer is shape memory alloy material layer.
Anchor ear arm described in every group includes the first support arm 21 and second support arm 22 for being connected to mainboard body both sides；It is described
The end of first support arm forms connection jaws 211, and connection clip is intraoral to form more than two positioning shoulders；The first support arm
A side be connected with first support arm 212 perpendicular with it, the end of the first support arm and adjacent another
First support arm is fastened and connected；The end of first support arm forms connection dop, and adjacent first support arm side forms and connected
The connects bayonet socket that dop is engaged.
The end of the second support arm forms the connecting clip 221 being engaged with being connected jaws, the second support arm with
Mainboard body junction is the bent over arms 223 of obtuse angle shape, and side of the bent over arms away from mainboard body is molded oriented mainboard body side
To the extension 224 of extension, a recess is formed between extension and bent over arms；Close to extension side in the second support arm
Side be connected with second support arm 222 perpendicular with it, the end of the second support arm and adjacent another second
Support arm is fastened and connected；The end of second support arm forms connection dop, and adjacent second support arm side is formed with being connected dop
The connects bayonet socket being engaged.
Claims (1)
- A kind of 1. memorial alloy internal fixation device, it is characterised in that：Include mainboard body and be integrally formed in mainboard body both sides Multigroup anchor ear arm；Be provided with cooling pipe in mainboard body and each group the anchor ear arm, the external wall of mainboard provided with respectively with it is cold But the inlet opening and fluid hole that pipe ends are connected；Described inlet opening and fluid hole are located at one end end position of mainboard body；The cooling pipe only includes a pipeline, Cooling pipe is arranged along mainboard body edge, and extends to the outer end of anchor ear arm；The mainboard body and anchor ear arm, which are internally located in the range of cooling pipe surrounds, is provided with the copper material bed of material, mainboard body and anchor ear Arm outer layer is shape memory alloy material layer；Anchor ear arm described in every group includes the first support arm and second support arm for being connected to mainboard body both sides；The first support arm End form connection jaws, connection clip is intraoral to form more than two positioning shoulders；One side of the first support arm First support arm perpendicular with it is connected with, the end of the first support arm fastens with another adjacent first support arm to be connected Connect；The end of first support arm forms connection dop, and adjacent first support arm side forms the company being engaged with being connected dop Connect bayonet socket；The end of the second support arm forms the connecting clip being engaged with being connected jaws, and the second support arm connects with mainboard body Bent over arms of the place for obtuse angle shape is connect, side of the bent over arms away from mainboard body is molded the extension of oriented mainboard body direction extension Portion, a recess is formed between extension and bent over arms；Close to the side integrally connected of extension side in the second support arm There is second support arm perpendicular with it, the end of the second support arm is fastened and connected with another adjacent second support arm；Second The end of support arm forms connection dop, and adjacent second support arm side forms the connects bayonet socket being engaged with being connected dop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710384860.3A CN107361836B (en) | 2015-12-24 | 2015-12-24 | Memory alloy internal fixator |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710384860.3A CN107361836B (en) | 2015-12-24 | 2015-12-24 | Memory alloy internal fixator |
| CN201510992991.0A CN105434022B (en) | 2015-12-24 | 2015-12-24 | A kind of memorial alloy internal fixation device external member |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510992991.0A Division CN105434022B (en) | 2015-12-24 | 2015-12-24 | A kind of memorial alloy internal fixation device external member |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107361836A true CN107361836A (en) | 2017-11-21 |
| CN107361836B CN107361836B (en) | 2020-01-10 |
Family
ID=55544977
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710384860.3A Expired - Fee Related CN107361836B (en) | 2015-12-24 | 2015-12-24 | Memory alloy internal fixator |
| CN201510992991.0A Active CN105434022B (en) | 2015-12-24 | 2015-12-24 | A kind of memorial alloy internal fixation device external member |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510992991.0A Active CN105434022B (en) | 2015-12-24 | 2015-12-24 | A kind of memorial alloy internal fixation device external member |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN107361836B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113940745A (en) * | 2021-11-01 | 2022-01-18 | 医诺睿康(北京)科技有限公司 | Memory alloy bone fracture plate |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2317822Y (en) * | 1997-12-15 | 1999-05-12 | 兰州记忆合金有限公司 | Split device for setting of fracture |
| CN2433942Y (en) * | 1999-06-14 | 2001-06-13 | 连远步 | Shape memory alloy surrounding fracture setting board |
| FR2839880B1 (en) * | 2002-05-21 | 2004-08-20 | Groupe Lepine | INTERVERTEBRAL CONNECTING ROD AND DEVICE FOR STRAIGHTENING RACHIS DEFORMATIONS |
| CN101480356A (en) * | 2008-01-09 | 2009-07-15 | 宋永强 | Medical hinge type ring-shaped pressure steel plate with lock for department of orthopaedics |
| CN204542344U (en) * | 2015-04-08 | 2015-08-12 | 赵全明 | A kind of spliced blade plate |
| CN205433865U (en) * | 2015-12-24 | 2016-08-10 | 李峰 | Memory alloy internal fixing device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5658286A (en) * | 1996-02-05 | 1997-08-19 | Sava; Garard A. | Fabrication of implantable bone fixation elements |
| IL121316A (en) * | 1997-07-15 | 2001-07-24 | Litana Ltd | Implantable medical device of shape memory alloy |
-
2015
- 2015-12-24 CN CN201710384860.3A patent/CN107361836B/en not_active Expired - Fee Related
- 2015-12-24 CN CN201510992991.0A patent/CN105434022B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2317822Y (en) * | 1997-12-15 | 1999-05-12 | 兰州记忆合金有限公司 | Split device for setting of fracture |
| CN2433942Y (en) * | 1999-06-14 | 2001-06-13 | 连远步 | Shape memory alloy surrounding fracture setting board |
| FR2839880B1 (en) * | 2002-05-21 | 2004-08-20 | Groupe Lepine | INTERVERTEBRAL CONNECTING ROD AND DEVICE FOR STRAIGHTENING RACHIS DEFORMATIONS |
| CN101480356A (en) * | 2008-01-09 | 2009-07-15 | 宋永强 | Medical hinge type ring-shaped pressure steel plate with lock for department of orthopaedics |
| CN204542344U (en) * | 2015-04-08 | 2015-08-12 | 赵全明 | A kind of spliced blade plate |
| CN205433865U (en) * | 2015-12-24 | 2016-08-10 | 李峰 | Memory alloy internal fixing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105434022B (en) | 2017-09-05 |
| CN105434022A (en) | 2016-03-30 |
| CN107361836B (en) | 2020-01-10 |
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Granted publication date: 20200110 Termination date: 20211224 |