CN109602486A - A kind of internal fixation of spine joint coupling - Google Patents
A kind of internal fixation of spine joint coupling Download PDFInfo
- Publication number
- CN109602486A CN109602486A CN201811649855.1A CN201811649855A CN109602486A CN 109602486 A CN109602486 A CN 109602486A CN 201811649855 A CN201811649855 A CN 201811649855A CN 109602486 A CN109602486 A CN 109602486A
- Authority
- CN
- China
- Prior art keywords
- pitman
- pedicle nail
- internal fixation
- joint coupling
- slot
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7049—Connectors, not bearing on the vertebrae, for linking longitudinal elements together
-
- 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
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7002—Longitudinal elements, e.g. rods
-
- 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
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7032—Screws or hooks with U-shaped head or back through which longitudinal rods pass
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Neurology (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (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)
- Prostheses (AREA)
Abstract
The invention discloses a kind of internal fixation of spine joint couplings, including pedicle nail and pitman, there are two the pitman settings, and the surface of two pitmans is provided with horizontal connected device, the surface of the pitman is provided with U-bolt, and the bottom of U-bolt is fixedly connected with multi-directional ball, and the bottom of the universal ball surface is connected with universal shaft, and the bottom of universal shaft is fixedly connected with interconnecting piece, and the present invention relates to the field of medical instrument technology.The internal fixation of spine joint coupling, it is provided with by pedicle nail multiple, and there are two pitman settings, and the surface of two pitmans is provided with horizontal connected device, and the surface of pitman is provided with U-bolt, and the bottom of U-bolt is fixedly connected with multi-directional ball, the bottom of universal ball surface is connected with universal shaft, it realizes that pedicle nail is firmly fixed, avoids the problem that pedicle nail easily loosens, greatly improve the stability of joint coupling.
Description
Technical field
The present invention relates to the field of medical instrument technology, specially a kind of internal fixation of spine joint coupling.
Background technique
Internal fixation of spine joint coupling system is generally made of pedicle screw, pitman, lateral connector.It is performing the operation
In the process, pedicle screw is screwed into centrum at the pedicle of vertebral arch of centrum two sides first, then by pitman and pedicle screw
It fixes, lateral connector is installed in two sides between two pitmans after being installed, the effect of lateral connector is will to install
Two nail-stick systems in backbone both sides are connected and fixed, and achieve the effect that stablize fixation.
In the prior art for the patient of osteoporosis, after carrying out nail pedicle fix, pedicle nail has the risk loosened,
Pedicle nail loosens, falls off and be broken, and often needs revision procedure, increases the pain and financial burden of patient.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of internal fixation of spine joint coupling, existing skill is solved
The problem of pedicle nail easily loosens in art.
In order to achieve the above object, the present invention is achieved by the following technical programs: a kind of universal connection of internal fixation of spine
Device, including pedicle nail and pitman, there are two the pitman settings, and the surface of two pitmans is provided with horizontal company
Device, the surface of the pitman is provided with U-bolt, and the bottom of U-bolt is fixedly connected with multi-directional ball, the multi-directional ball
The bottom on surface is connected with universal shaft, and the bottom of universal shaft is fixedly connected with interconnecting piece, the bottom of the interconnecting piece
It is threadedly coupled with the top of pedicle nail, and the inside of pedicle nail offers mounting groove, the inside setting of the mounting groove
There is vertical bar, and the top and bottom on vertical bar surface is provided with external screw thread, the inner thread company of the external screw thread and mounting groove
It connects, and the two sides on pedicle nail surface offer loose slot, the inside of the pedicle nail and the top for being located at loose slot
Device slot is offered with bottom, and is fixedly connected to fixed link between the two sides of two device slot inner walls, described in two
The surface of fixed link is connected with return unit, and is fixedly connected with movable block between the opposite side of two return units,
The side of the movable block is provided with protrusion, the surface of the fixed link and be located at device slot inner wall side and return unit one
Spring is arranged between side.
Preferably, the top of the vertical bar is provided with the first plum blossom top, and is provided with fixation at the top of pitman surface
Platform.
Preferably, the screw top inside the U-bolt is connected with the first jackscrew, and the top setting of the first jackscrew
There is the second plum blossom top.
Preferably, the screw top inside the horizontal connected device is connected with the second jackscrew, and the top setting of the second jackscrew
There is third plum blossom top.
Preferably, link slot is offered in the middle part of the horizontal connected device, and link slot is internally provided with horizontal stripe.
Preferably, the inside of the pedicle nail and it is located at the top and bottom of movable block and offers and mutually fitted with return unit
The reseting groove matched.
Beneficial effect
The present invention provides a kind of internal fixation of spine joint couplings.Have compared with prior art it is following the utility model has the advantages that
(1), the internal fixation of spine joint coupling, is provided with multiple by pedicle nail, and pitman is provided with two
A, and the surface of two pitmans is provided with horizontal connected device, the surface of pitman is provided with U-bolt, and U-bolt
Bottom is fixedly connected with multi-directional ball, and the bottom of universal ball surface is connected with universal shaft, and the fixed company in bottom of universal shaft
It is connected to interconnecting piece, the bottom of interconnecting piece is threadedly coupled with the top of pedicle nail, and the inside of pedicle nail offers installation
Slot, mounting groove is internally provided with vertical bar, and the top and bottom on vertical bar surface is provided with external screw thread, external screw thread and installation
The inner thread of slot connects, and the two sides on pedicle nail surface offer loose slot, and the inside of pedicle nail and being located at is lived
The top and bottom of dynamic slot offers device slot, and is fixedly connected to fixation between the two sides of two device slot inner walls
Bar, the surface of two fixed links are connected with return unit, and are fixedly connected between the opposite side of two return units
Movable block, the side of movable block are provided with protrusion, the surface of fixed link and be located at device slot inner wall side and return unit one
Spring is arranged between side, the inside of pedicle nail and the top and bottom for being located at movable block are offered to be adapted with return unit
Reseting groove, pedicle nail may be implemented and be firmly fixed, avoid the problem that pedicle nail easily loosens, greatly improve and interior fix ten thousand
To the stability of connector.
(2), the internal fixation of spine joint coupling is provided with the first plum blossom top, and pitman by the top of vertical bar
Fixed platform is provided at the top of surface, the screw top inside U-bolt is connected with the first jackscrew, and the top of the first jackscrew
Portion is provided with the second plum blossom top, and the screw top inside horizontal connected device is connected with the second jackscrew, and the top setting of the second jackscrew
There is third plum blossom top, offer link slot in the middle part of horizontal connected device, and link slot is internally provided with horizontal stripe, can reinforce connecting
The fixed effect of stick avoids the problem that axial rotation occurs in pitman.
Detailed description of the invention
Fig. 1 is the cross-sectional view of structure of the invention；
Fig. 2 is the side view of pitman structure of the present invention；
Fig. 3 is the partial enlarged view in Fig. 2 of the present invention at A；
Fig. 4 is the top view of vertical bar internal structure of the present invention.
In figure: 1- pedicle nail, 2- pitman, the horizontal connected device of 3-, 4-U type bolt, 5- multi-directional ball, 6- universal shaft, 7- connection
Portion, 8- mounting groove, 9- vertical bar, 10- external screw thread, 11- loose slot, 12- device slot, 13- fixed link, 14- return unit, 15- activity
Block, the protrusion 16-, 17- spring, the first plum blossom of 18- top, 19- fixed platform, the first jackscrew of 20-, the second plum blossom of 21- top, 22- the
Two jackscrews, 23- third plum blossom top, 24- link slot, 25- horizontal stripe, 26- reseting groove.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-4 is please referred to, the present invention provides a kind of technical solution: a kind of internal fixation of spine joint coupling, including vertebral arch
Root nail 1 and pitman 2, pedicle nail 1 be provided with it is multiple, and there are two the settings of pitman 2, and the table of two pitmans 2
Face is provided with horizontal connected device 3, and the screw top inside horizontal connected device 3 is connected with the second jackscrew 22, and the top of the second jackscrew 22
It is provided with third plum blossom top 23, the middle part of horizontal connected device 3 offers link slot 24, and link slot 24 is internally provided with horizontal stripe
25, the inside of pedicle nail 1 and be located at movable block 15 top and bottom offer reseting groove compatible with return unit 14
26, the surface of pitman 2 is provided with U-bolt 4, and the screw top inside U-bolt 4 is connected with the first jackscrew 20, and
The top of one jackscrew 20 is provided with the second plum blossom top 21, and the bottom of U-bolt 4 is fixedly connected with multi-directional ball 5, multi-directional ball 5
The bottom on surface is connected with universal shaft 6, and the bottom of universal shaft 6 is fixedly connected with interconnecting piece 7, the bottom of interconnecting piece 7
It is threadedly coupled with the top of pedicle nail 1, and the inside of pedicle nail 1 offers mounting groove 8, the inside setting of mounting groove 8
There is vertical bar 9,9 liang of end sections of vertical bar are cylinder, and middle part section is ellipse, and the top of vertical bar 9 is provided with the first plum blossom top 18, plum
The design of flower top, can effectively prevent the phenomenon that skidding in operation, and be provided with fixed platform 19 at the top of 2 surface of pitman, Gu
Fixed platform 19 can place 2 axial deflection of pitman, and the top and bottom on 9 surface of vertical bar is provided with external screw thread 10, outer spiral shell
Line 10 is connect with the inner thread of mounting groove 8, and the two sides on 1 surface of pedicle nail offer loose slot 11, pedicle nail 1
Inside and be located at the top and bottom of loose slot 11 and offer device slot 12, and the two sides of two 12 inner walls of device slot it
Between be fixedly connected to fixed link 13, the surface of two fixed links 13 is connected with return unit 14, and two return units
Movable block 15 is fixedly connected between 14 opposite sides, the side of movable block 15 is provided with protrusion 16, the surface of fixed link 13
And it is located between the side of 12 inner wall of device slot and the side of return unit 14 and is arranged with spring 17.
In use, turning vertical bar 9 by tool after pedicle nail 1 is fixed, make the protrusion Compressive activities of vertical bar 9
Block 15, movable block 15 are pressed to two sides extrusion, are caught in by protrusion 16 and are realized anti-loose, when disassembly turns round vertical bar 9, in spring
Return unit 14 drives movable block 15 to reset under the action of 17, takes out pedicle nail 1.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of internal fixation of spine joint coupling, including pedicle nail (1) and pitman (2), the pitman (2) are provided with
Two, and the surface of two pitmans (2) is provided with horizontal connected device (3), it is characterised in that: the surface of the pitman (2)
It is provided with U-bolt (4), and the bottom of U-bolt (4) is fixedly connected with multi-directional ball (5), multi-directional ball (5) surface
Bottom is connected with universal shaft (6), and the bottom of universal shaft (6) is fixedly connected with interconnecting piece (7), the interconnecting piece (7)
Bottom be threadedly coupled with the top of pedicle nail (1), and the inside of pedicle nail (1) offers mounting groove (8), the peace
Tankage (8) is internally provided with vertical bar (9), and the top and bottom on vertical bar (9) surface is provided with external screw thread (10), described
External screw thread (10) is connect with the inner thread of mounting groove (8), and the two sides on pedicle nail (1) surface offer loose slot
(11), the inside of the pedicle nail (1) and be located at loose slot (11) top and bottom offer device slot (12), and
It is fixedly connected to fixed link (13) between the two sides of two device slot (12) inner walls, the surface of two fixed links (13) is equal
It is connected with return unit (14), and is fixedly connected with movable block (15), institute between the opposite side of two return units (14)
The side for stating movable block (15) is provided with protrusion (16), the surface of the fixed link (13) and be located at device slot (12) inner wall one
Spring (17) are arranged between side and the side of return unit (14).
2. a kind of internal fixation of spine joint coupling according to claim 1, it is characterised in that: the top of the vertical bar (9)
End is provided with the first plum blossom top (18), and is provided with fixed platform (19) at the top of pitman (2) surface.
3. a kind of internal fixation of spine joint coupling according to claim 1, it is characterised in that: in the U-bolt (4)
The screw top in portion is connected with the first jackscrew (20), and the second plum blossom top (21) is provided at the top of the first jackscrew (20).
4. a kind of internal fixation of spine joint coupling according to claim 1, it is characterised in that: in the horizontal connected device (3)
The screw top in portion is connected with the second jackscrew (22), and third plum blossom top (23) is provided at the top of the second jackscrew (22).
5. a kind of internal fixation of spine joint coupling according to claim 1, it is characterised in that: the horizontal connected device (3)
Middle part offers link slot (24), and link slot (24) is internally provided with horizontal stripe (25).
6. a kind of internal fixation of spine joint coupling according to claim 1, it is characterised in that: the pedicle nail (1)
Inside and be located at movable block (15) top and bottom offer with return unit (14) compatible reseting groove (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811649855.1A CN109602486B (en) | 2018-12-31 | 2018-12-31 | Universal connector for internal fixation of spine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811649855.1A CN109602486B (en) | 2018-12-31 | 2018-12-31 | Universal connector for internal fixation of spine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109602486A true CN109602486A (en) | 2019-04-12 |
| CN109602486B CN109602486B (en) | 2020-12-04 |
Family
ID=66016484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811649855.1A Active CN109602486B (en) | 2018-12-31 | 2018-12-31 | Universal connector for internal fixation of spine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109602486B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203183020U (en) * | 2013-02-22 | 2013-09-11 | 常州市斯博特医疗器械有限公司 | Expansion type extruding nail |
| CN204073077U (en) * | 2014-08-29 | 2015-01-07 | 邵君飞 | Bone wax applicator |
| CN204814150U (en) * | 2015-08-24 | 2015-12-02 | 苏州市康力骨科器械有限公司 | Multi -direction locking plate fixed structure of thighbone near -end |
| CN204931828U (en) * | 2015-08-31 | 2016-01-06 | 中国人民解放军第四军医大学 | A kind of way of escape spinal fixation system |
| US9339307B2 (en) * | 2008-02-07 | 2016-05-17 | K2M, Inc. | Automatic lengthening bone fixation device |
| CN207125783U (en) * | 2017-01-22 | 2018-03-23 | 北京爱康宜诚医疗器材有限公司 | Screw |
| CN207755340U (en) * | 2017-06-24 | 2018-08-24 | 李洪湘 | A kind of part replacement is convenient and can avoid the set of cross-infection bundle syringe |
| CN208017566U (en) * | 2017-06-26 | 2018-10-30 | 胡淑云 | A kind of femoral neck bone hollow nail |
-
2018
- 2018-12-31 CN CN201811649855.1A patent/CN109602486B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9339307B2 (en) * | 2008-02-07 | 2016-05-17 | K2M, Inc. | Automatic lengthening bone fixation device |
| CN203183020U (en) * | 2013-02-22 | 2013-09-11 | 常州市斯博特医疗器械有限公司 | Expansion type extruding nail |
| CN204073077U (en) * | 2014-08-29 | 2015-01-07 | 邵君飞 | Bone wax applicator |
| CN204814150U (en) * | 2015-08-24 | 2015-12-02 | 苏州市康力骨科器械有限公司 | Multi -direction locking plate fixed structure of thighbone near -end |
| CN204931828U (en) * | 2015-08-31 | 2016-01-06 | 中国人民解放军第四军医大学 | A kind of way of escape spinal fixation system |
| CN207125783U (en) * | 2017-01-22 | 2018-03-23 | 北京爱康宜诚医疗器材有限公司 | Screw |
| CN207755340U (en) * | 2017-06-24 | 2018-08-24 | 李洪湘 | A kind of part replacement is convenient and can avoid the set of cross-infection bundle syringe |
| CN208017566U (en) * | 2017-06-26 | 2018-10-30 | 胡淑云 | A kind of femoral neck bone hollow nail |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109602486B (en) | 2020-12-04 |
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Address after: 430065, Tsing Ling Town Industrial Zone, Hongshan District, Hubei, Wuhan Province, No. 18 Patentee after: Wuhan Mindray Technology Co., Ltd Address before: 430000 No. 18 Qingling River Road, Qingling Metropolitan Industrial Park, Hongshan District, Wuhan City, Hubei Province Patentee before: WUHAN DRAGONBIO ORTHOPEDIC PRODUCTS Co.,Ltd. |