CN107874822B - Wallboard type screw internal fixation system - Google Patents
Wallboard type screw internal fixation system Download PDFInfo
- Publication number
- CN107874822B CN107874822B CN201711345409.7A CN201711345409A CN107874822B CN 107874822 B CN107874822 B CN 107874822B CN 201711345409 A CN201711345409 A CN 201711345409A CN 107874822 B CN107874822 B CN 107874822B
- Authority
- CN
- China
- Prior art keywords
- wallboard
- wall plate
- screw
- screws
- right wall
- 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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- 229910003460 diamond Inorganic materials 0.000 claims description 3
- 239000010432 diamond Substances 0.000 claims description 3
- 206010017076 Fracture Diseases 0.000 abstract description 15
- 208000010392 Bone Fractures Diseases 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 9
- 230000035876 healing Effects 0.000 abstract description 6
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000826860 Trapezium Species 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
Classifications
-
- 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
- A61B17/683—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin comprising bone transfixation elements, e.g. bolt with a distal cooperating element such as a nut
-
- 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
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/8605—Heads, i.e. proximal ends projecting from bone
-
- 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
Landscapes
- 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)
- Joining Of Building Structures In Genera (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a wallboard type screw internal fixation system, which comprises at least two wallboard type screws, wherein each wallboard type screw comprises a screw main body and a wallboard group, each wallboard group comprises a left wallboard and a right wallboard, each left wallboard and each right wallboard are hinged on the screw main body, between two adjacent wallboard type screws, the right wallboard of one wallboard type screw and the left wallboard of the other wallboard type screw are spliced together after rotation, and a degree of freedom forming mechanism which enables a certain relative degree of freedom to be formed between the right wallboard and the left wallboard in the nailing direction of the wallboard type screw when the right wallboard and the left wallboard are spliced together is arranged between the right wallboard and the left wallboard. The invention can realize the micro-motion effect, thereby accelerating the fracture healing, relieving the pain of the patient and bringing good medical treatment effect.
Description
Technical Field
The invention relates to a wallboard type screw internal fixation system.
Background
At present, in fracture surgery, the modes of conservative treatment, internal fixation of a steel plate, external fixation of a bracket and the like are conventionally selected, but the still-used theory is the old AO theory, namely the strong internal fixation theory. This theory ignores the biomechanical effect, thus leading to the increase of the probability of slow fracture healing and even bone disunion, the recent fear of load and the possibility of fracture of the steel plate caused by the increase of long-term fatigue of the steel plate, so that the old nail plate internal fixation system has a great number of defects.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a wallboard type screw internal fixation system which can realize the micro-motion effect, thereby accelerating fracture healing, relieving the pain of a patient and bringing good medical treatment effect.
In order to solve the technical problems, the technical scheme of the invention is as follows: a wallboard screw internal fixation system comprising at least two wallboard screws, the wallboard screws comprising:
a screw body;
the wallboard group, wallboard group includes left wallboard and right wallboard, and left wallboard and right wallboard all articulate in the screw main part, between two adjacent wallboard formula screws, and the right wallboard of one wallboard formula screw and the left wallboard of another wallboard formula screw overlap together after rotatory to be provided with one between this right wallboard and this left wallboard and make this right wallboard and this left wallboard have the degree of freedom formation mechanism of certain relative degree of freedom in wallboard formula screw's nailing direction between this right wallboard and this left wallboard when this right wallboard and this left wallboard overlap together.
The utility model provides a degree of freedom forms concrete structure of mechanism, degree of freedom forms the mechanism and includes boss and the recess with boss gomphosis, the recess is trapezium structure, the width H of boss is greater than the big end width W of recess, and the width H of boss is less than the little end width W of recess, when corresponding right wallboard and corresponding left wallboard overlap, corresponding boss and corresponding recess gomphosis, and have clearance H between corresponding right wallboard and the relative two faces of corresponding left wallboard.
Further, the gap h is 0.2mm to 0.5mm.
Further, in the right wall plate and the left wall plate which are overlapped together, the boss is provided on the left wall plate, and the groove is provided on the right wall plate.
Further provided is a concrete structure of a screw body having a nut on which a left wall plate and a right wall plate are hinged, respectively, in the same wall plate type screw.
Further to enable limiting the movement of the right and left panels in the longitudinal direction (perpendicular to the driving direction of the panel screws) after the splice, and to constrain the freedom in the driving direction, the right and left panels are spliced together, with the right and left panels also being connected by a locking assembly.
There is further provided a specific construction of a locking assembly comprising at least one locking screw which is screwed into both the right and left panels.
Further in order to expand the micro-motion effect to a reasonable scope and achieve the purpose of accelerating fracture healing, the locking assembly comprises 4 locking screws, and the 4 locking screws are connected to form a diamond structure.
After the technical scheme is adopted, after the surgical fixation, a certain degree of freedom is provided between the overlapped left wallboard and right wallboard in the nailing direction, so that the micro-motion effect of the fracture end can be ensured, the rapid recovery of the fracture is facilitated, and experiments prove that the micro-motion frequency of 0.5Hz and the micro-motion range of 1mm can be realized, and the fracture healing time can be effectively reduced by 6 weeks.
Drawings
FIG. 1 is a schematic view of a wall plate screw according to the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a schematic view of the wall plate screw internal fixation system of the present invention;
FIG. 4 is a cross-sectional view B-B of FIG. 3;
fig. 5 is a partial schematic view of fig. 3 in the C direction.
Detailed Description
In order that the invention may be more readily understood, a more particular description of the invention will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
As shown in fig. 1 to 5, a wallboard screw internal fixation system comprising at least two wallboard screws, the wallboard screws comprising:
a screw body 1;
the wallboard set, the wallboard set includes left wallboard 21 and right wallboard 22, left wallboard 21 and right wallboard 22 all articulate on screw main part 1, between two adjacent wallboard formula screws, the right wallboard 22 of one wallboard formula screw and the left wallboard 21 of another wallboard formula screw are through the back splice that rotates together, and be provided with a degree of freedom formation mechanism that makes between this right wallboard 22 and this left wallboard 21 have certain relative degree of freedom in wallboard formula screw's nail income direction when this right wallboard 22 and this left wallboard 21 splice together between this right wallboard 22 and this left wallboard 21.
As shown in fig. 2 and 4, the degree of freedom forming mechanism includes a boss 211 and a groove 221 fitted with the boss 211, the groove 221 is a trapezoidal structure, a width H of the boss 211 is larger than a bottom width W of the groove 221, and a width H of the boss 211 is smaller than a bottom width W of the groove 221, when the respective right wall plate 22 and the respective left wall plate 21 are overlapped, the respective boss 211 and the respective groove 221 are fitted with a gap H between opposite sides of the respective right wall plate 22 and the respective left wall plate 21.
The gap h is 0.2 mm-0.5 mm.
As shown in fig. 4, in the right wall plate 22 and the left wall plate 21 which are overlapped, the boss 211 is provided on the left wall plate 21, and the groove 221 is provided on the right wall plate 22.
As shown in fig. 1, in the same wall plate type screw, the screw body 1 has a nut 11, and a left wall plate 21 and a right wall plate 22 are hinged to the nut 11, respectively.
As shown in fig. 5, in the right wall plate 22 and the left wall plate 21 which are overlapped together, the right wall plate 22 and the left wall plate 21 are also connected together by a locking assembly.
As shown in fig. 5, the locking assembly comprises at least one locking screw 3, said locking screw 3 being screwed into both the right wall plate 22 and the left wall plate 21.
In order to expand the micro-motion effect to a reasonable range and achieve the purpose of accelerating fracture healing, as shown in fig. 5, the locking assembly comprises 4 locking screws 3, and the 4 locking screws 3 are connected to form a diamond structure.
The implementation process of the wallboard type screw internal fixation system is as follows:
in the specific operation process, according to the extension length and the position of the fracture, selecting wallboard screws with corresponding lengths, respectively drilling holes at two ends of the fracture and screwing the wallboard screws into the screw main body 1; the right wallboard 22 of the wallboard screw at the left side of the fracture end is outwards unfolded to a vertical position, the left wallboard 21 of the wallboard screw at the right side of the fracture end is outwards unfolded to a vertical position, and after the two are matched, the corresponding locking screw 3 is screwed in; according to the number of the screws of the arm plate selected by the fractures of different parts, the connection is completed; the left wall plate 21 of the left wall plate screw and the right wall plate 22 of the right wall plate screw are covered with matched arm plates and screwed into the corresponding locking screw 3; and finally, the whole operation is finished, and the wallboard type screw internal fixing system is formed.
The technical problems, technical solutions and advantageous effects solved by the present invention have been further described in detail in the above-described embodiments, and it should be understood that the above-described embodiments are only illustrative of the present invention and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the scope of protection of the present invention.
Claims (5)
1. A wallboard screw internal fixation system comprising at least two wallboard screws, said wallboard screws comprising:
a screw body (1);
the wall plate group comprises a left wall plate (21) and a right wall plate (22), wherein the left wall plate (21) and the right wall plate (22) are hinged on the screw main body (1), the right wall plate (22) of one wall plate type screw and the left wall plate (21) of the other wall plate type screw are overlapped together after rotating between the two adjacent wall plate type screws, and a degree of freedom forming mechanism which enables a certain relative degree of freedom to be formed between the right wall plate (22) and the left wall plate (21) in the nailing direction of the wall plate type screws when the right wall plate (22) and the left wall plate (21) are overlapped together is arranged between the right wall plate (22) and the left wall plate (21);
the freedom degree forming mechanism comprises a boss (211) and a groove (221) which is embedded with the boss (211), the groove (221) is of a trapezoid structure, the width H of the boss (211) is larger than the outsole width W of the groove (221), the width H of the boss (211) is smaller than the small-bottom width W of the groove (221), when the corresponding right wall plate (22) and the corresponding left wall plate (21) are overlapped, the corresponding boss (211) and the corresponding groove (221) are embedded, and a gap H is reserved between two opposite surfaces of the corresponding right wall plate (22) and the corresponding left wall plate (21);
in the right wall plate (22) and the left wall plate (21) which are overlapped together, the boss (211) is arranged on the left wall plate (21), and the groove (221) is arranged on the right wall plate (22);
in the right wall plate (22) and the left wall plate (21) which are overlapped together, the right wall plate (22) and the left wall plate (21) are also connected together through a locking assembly.
2. The wallboard screw internal fixation system of claim 1, wherein: the gap h is 0.2 mm-0.5 mm.
3. The wallboard screw internal fixation system of claim 1, wherein: in the same wallboard type screw, the screw main body (1) is provided with a screw cap (11), and a left wallboard (21) and a right wallboard (22) are respectively hinged on the screw cap (11).
4. The wallboard screw internal fixation system of claim 1, wherein: the locking assembly comprises at least one locking screw (3), the locking screw (3) being screwed into both the right wall plate (22) and the left wall plate (21).
5. The wallboard screw internal fixation system of claim 4, wherein: the locking assembly comprises 4 locking screws (3), and the 4 locking screws (3) are connected to form a diamond structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711345409.7A CN107874822B (en) | 2017-12-15 | 2017-12-15 | Wallboard type screw internal fixation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711345409.7A CN107874822B (en) | 2017-12-15 | 2017-12-15 | Wallboard type screw internal fixation system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107874822A CN107874822A (en) | 2018-04-06 |
| CN107874822B true CN107874822B (en) | 2024-01-19 |
Family
ID=61770865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711345409.7A Active CN107874822B (en) | 2017-12-15 | 2017-12-15 | Wallboard type screw internal fixation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107874822B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101662994A (en) * | 2006-12-22 | 2010-03-03 | 迪特马尔·沃尔特 | Repositioning and fixation system for bone fragments |
| CN208481436U (en) * | 2017-12-15 | 2019-02-12 | 阮渊 | Wallboard type screw internal fixing system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7789899B2 (en) * | 2004-12-30 | 2010-09-07 | Warsaw Orthopedic, Inc. | Bone anchorage screw with built-in hinged plate |
| US7938848B2 (en) * | 2004-06-09 | 2011-05-10 | Life Spine, Inc. | Spinal fixation system |
| US20070239159A1 (en) * | 2005-07-22 | 2007-10-11 | Vertiflex, Inc. | Systems and methods for stabilization of bone structures |
| US8574272B2 (en) * | 2008-10-14 | 2013-11-05 | K2M, Inc. | Semi-constrained screw and spinal plate assembly |
| DE102013104887B4 (en) * | 2013-05-13 | 2021-03-18 | Aap Implantate Ag | Osteosynthesis plate and segment for an osteosynthesis plate |
-
2017
- 2017-12-15 CN CN201711345409.7A patent/CN107874822B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101662994A (en) * | 2006-12-22 | 2010-03-03 | 迪特马尔·沃尔特 | Repositioning and fixation system for bone fragments |
| CN208481436U (en) * | 2017-12-15 | 2019-02-12 | 阮渊 | Wallboard type screw internal fixing system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107874822A (en) | 2018-04-06 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20231225 Address after: Northeast corner, second floor, Building E3, No. 9, Changyang Road, Changzhou West the Taihu Lake Science and Technology Industrial Park, Changzhou, Jiangsu Province, 213000 Applicant after: Changzhou Qiantai Medical Technology Co.,Ltd. Address before: No. 11 Zhujiaba, Xicheng Village Committee, Jiaze Town, Wujin District, Changzhou City, Jiangsu Province, China Applicant before: Ruan Yuan |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |