CN112370141A - Femoral neck bone fracture plate with double sleeves - Google Patents
Femoral neck bone fracture plate with double sleeves Download PDFInfo
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- CN112370141A CN112370141A CN202011124266.9A CN202011124266A CN112370141A CN 112370141 A CN112370141 A CN 112370141A CN 202011124266 A CN202011124266 A CN 202011124266A CN 112370141 A CN112370141 A CN 112370141A
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- lag screw
- bolt
- angled
- plate
- lag
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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
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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
- A61B17/74—Devices for the head or neck or trochanter of the femur
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
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- Surgical Instruments (AREA)
Abstract
The invention discloses a femoral neck bone fracture plate with double sleeves, which comprises a locking plate, a combination plate, an angled fixing screw, a lag screw and a bolt, wherein the locking plate and the combination plate are integrally formed, a plurality of LCP (liquid Crystal Polymer) holes are formed in the combination plate, the locking plate is provided with the angled fixing screw hole and the lag screw hole, the lag screw hole is obliquely arranged towards the angled fixing screw hole, the bottom surface of the lag screw hole is connected with the sleeve, the lag screw penetrates through the lag screw hole and the sleeve and is fixedly connected with the locking plate through the bolt, the angled fixing screw penetrates through the angled fixing screw hole and the lag screw and is fixedly connected with the locking plate through the bolt, and the angled fixing screw and. The femur neck bone fracture plate with the double sleeves is of a strong-stability structure integrally, has the functions of rotation resistance and collapse resistance, and effectively avoids the pull screw from falling out.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a femoral neck bone fracture plate with double sleeves.
Background
With the development of society and the change of life and working modes of people, the incidence rate of femoral neck fracture caused by high energy injuries such as high-altitude falling, traffic accidents, motion loss and the like is increased year by year, and the prior clinical operation methods for femoral neck fracture and internal fixation modes thereof are diversified. The main mode is to obtain good femoral neck reduction effect and reliable biomechanical property through various internal fixing devices and technologies, wherein the common internal fixing systems mainly comprise PFNA type intramedullary nails, gamma type intramedullary nails, DHS bone fracture plates, proximal femoral bone fracture plates and hollow bone fracture screws. At present, except that most old patients adopt an intramedullary nail system to reposition and fix femoral neck and intertrochanteric fracture, most middle-aged and young patients still need to adopt a mode of fixing 3 hollow compression screws for operation treatment. But the mode has the problems of poor anti-rotation performance of the screw, insufficient fracture fixation stability, low anti-collapse capability, pull screw falling out after operation, high post-operation broken screw rate and the like. Therefore, some researchers have tried to treat young non-displaced femoral neck fractures with locking bone plates and have shown through biomechanical studies that when the locking bone plate is integrated with screws, it has better biomechanical properties than when the bone screws are initially cannulated. However, most of the currently clinically used femoral neck bone-knitting steel plates are formed by improving the traditional proximal femoral bone-knitting plate, a one-to-one single locking mode is usually adopted between the screws and the steel plates, the locking between the screws and the steel plates and the strong fixation between the screws and the femur cannot be guaranteed through the simple connection and locking relationship, the postoperative locking and fixing effects are still uncertain, and the risks of nail breakage and nail pulling exist.
Disclosure of Invention
The invention aims to provide a femoral neck bone fracture plate with a double sleeve, which solves one or more technical problems in the prior art and at least provides a beneficial selection or creation condition.
The technical scheme adopted for solving the technical problems is as follows:
the utility model provides a take double-sleeve's thighbone neck coaptation board, includes lockplate, combination board, angulation set screw, lag screw and bolt, lockplate and combination board integrated into one piece, be equipped with a plurality of LCP hole on the combination board, be equipped with angulation set screw hole and lag screw hole on the lockplate, the lag screw hole sets up to the direction slope of angulation set screw hole, the bottom surface of lag screw hole is connected with the sleeve, lag screw runs through lag screw hole and sleeve to through bolt and lockplate fixed connection, angulation set screw runs through angulation set screw hole and lag screw to through bolt and lockplate fixed connection, angulation set screw and lag screw staggered connection each other.
As a further improvement of the technical scheme, the bolt is of a hollow cylindrical structure, the top of the bolt is provided with a first external thread, and the bottom of the bolt is provided with a second external thread.
As a further improvement of the above technical solution, the head of the angled set screw is provided with an internal thread, the first external thread of the bolt is connected with the angled set screw hole, and the second external thread of the bolt is connected with the internal thread of the angled set screw.
As a further improvement of the above technical solution, the head of the lag screw is provided with an internal thread, the first external thread of the bolt is connected with the lag screw hole, and the second external thread of the bolt is connected with the internal thread of the lag screw.
As a further improvement of the above technical solution, the angled set screw is a hollow cylindrical structure, and the outer wall of the angled set screw is provided with bone threads.
As a further improvement of the technical scheme, the lag screw is of a hollow cylindrical structure, the outer wall of the lag screw is provided with bone threads, the lag screw is provided with an inclined angled fixing hole, and the angled fixing screw penetrates through the angled fixing hole.
As a further improvement of the technical proposal, one side surface formed by the locking plate and the combination plate is an anatomic curved surface.
As a further improvement of the above technical solution, the number of the LCP holes is four and is linearly distributed on the bonding plate.
As a further improvement of the above technical solution, the number of the lag screw holes is two and is distributed at one end of the locking plate close to the combination plate.
As a further improvement of the above technical solution, the number of the angled set screw holes is one and is distributed at one end of the locking plate away from the combination plate.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the locking plate is provided with the lag screw hole, the bottom surface of the lag screw hole is connected with the sleeve, and the lag screw penetrates through the lag screw hole and the sleeve and is fixedly connected with the locking plate through the bolt, so that the fracture fixation is firmer, and the implant has an anti-rotation function. According to the invention, the angled fixing screw hole and the lag screw hole are arranged on the locking plate, the lag screw hole is obliquely arranged towards the angled fixing screw hole, the angled fixing screw penetrates through the angled fixing screw hole and the lag screw and is fixedly connected with the locking plate through the bolt, and the angled fixing screw and the lag screw are mutually connected in a staggered manner, so that the integral bone fracture plate is in a strong stability structure, has anti-rotation and anti-collapse functions, and is effectively prevented from falling off.
Drawings
The invention is further described below with reference to the accompanying drawings and examples.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the angled set screw of the present invention;
FIG. 3 is a schematic structural view of the lag screw of the present invention;
fig. 4 is a schematic view of the construction of the bolt of the present invention.
In the figure, 100-locking plate, 110-angled set screw hole, 120-lag screw hole, 130-sleeve, 200-coupling plate, 210-LCP hole, 300-angled set screw, 400-lag screw, 410-angled set hole, 500-bolt, 510-first external thread, 520-second external thread, 600-internal thread, 700-bone thread, 800-anatomic curve.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, if words such as "a plurality" are described, the meaning is one or more, the meaning of a plurality is two or more, more than, less than, more than, etc. are understood as excluding the present number, and more than, less than, etc. are understood as including the present number.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1 to 4, in an embodiment of the present invention, a femoral neck bone plate with a double sleeve includes a locking plate 100, a coupling plate 200, an angled set screw 300, a lag screw 400, and a bolt 500, wherein the locking plate 100 is integrally formed with the coupling plate 200. The bonding plate 200 is provided with four LCP holes 210 linearly distributed on the bonding plate 200, and the LCP holes 210 are used for inserting bone screws or locking screws. The locking plate 100 is provided with an angled set screw hole 110 and two lag screw holes 120, the angled set screw hole 110 is distributed at one end of the locking plate 100 far away from the combination plate 200, the two lag screw holes 120 are distributed at one end of the locking plate 100 close to the combination plate 200, and the lag screw holes 120 are obliquely arranged towards the angled set screw hole 110. The sleeves 130 are connected to the bottom surfaces of the two lag screw holes 120, the lag screw 400 penetrates through the lag screw holes 120 and the sleeves 130 and is fixedly connected with the locking plate 100 through the bolt 500, and the sleeves 130 are designed to enhance the structural connection stability. The angled set screw 300 penetrates the angled set screw hole 110 and the lag screw 400 and is fixedly connected with the locking plate 100 through a bolt 500, and the angled set screw 300 and the lag screw 400 are connected with each other in an interlaced manner.
In some embodiments, the bolt 500 is a hollow cylindrical structure, the top of the bolt 500 is provided with a first external thread 510, and the bottom of the bolt 500 is provided with a second external thread 520. The bolt 500 is designed as two-step thread with different specifications, and can be respectively connected with the locking plate 100, the angled fixing screw 300 and the lag screw 400, so that the angled fixing screw 300 and the lag screw 400 are fixed on the locking plate 100.
In some embodiments, the head of the angled set screw 300 is provided with internal threads 600, the first external threads 510 of the bolt 500 are coupled to the angled set screw hole 110, and the second external threads 520 of the bolt 500 are coupled to the internal threads 600 of the angled set screw 300. The angled set screw 300 is secured to the locking plate 100 by placing the angled set screw 300 into the angled set screw hole 110, selecting a bolt 500 that fits the gauge of the angled set screw 300, and threading the bolt 500 into the angled set screw hole 110.
In some embodiments, the head of the lag screw 400 is provided with an internal thread 600, the first external thread 510 of the bolt 500 is connected with the lag screw hole 120, and the second external thread 520 of the bolt 500 is connected with the internal thread 600 of the lag screw 400. The lag screw 400 is fixed to the locking plate 100 by placing the lag screw 400 into the lag screw hole 120 and the sleeve 130, selecting a bolt 500 adapted to the specification of the lag screw 400, and screwing the bolt 500 into the lag screw hole 120.
In some embodiments, the angled set screw 300 is a hollow cylindrical structure, and the outer wall of the angled set screw 300 is provided with bone threads 700. The angled set screw 300 is designed as a hollow cylindrical structure and can be matched with a guide pin through a through hole to play a guiding role. The outer wall of angled set screw 300 is provided with bone threads 700 for engagement with bone to improve connection stability.
In some embodiments, the lag screw 400 has a hollow cylindrical structure, the outer wall of the lag screw 400 is provided with bone threads 700, the lag screw 400 is provided with an angled fixation hole 410, and the angled fixation screw 300 extends through the angled fixation hole 410. The lag screw 400 is designed to be a hollow cylindrical structure, and can be matched with a guide pin through a through hole to play a role in guiding. The outer wall of the lag screw 400 is provided with a bone thread 700 for engagement with bone, improving connection stability. The lag screw 400 is provided with an inclined angled fixing hole 410, and the angled fixing screw 300 penetrates through the angled fixing hole 410 and is mutually connected with the lag screw 400 in a staggered manner, so that the whole bone fracture plate is of a strong stability structure and has the functions of rotation resistance and collapse resistance, and the lag screw 400 is prevented from being separated.
In some embodiments, the locking plate 100 and the coupling plate 200 are formed with an anatomically curved surface 800 on one side. The anatomical curved surface is designed to improve the fit with the bone surface.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that the present invention is not limited to the details of the embodiments shown and described, but is capable of numerous equivalents and substitutions without departing from the spirit of the invention as set forth in the claims appended hereto.
Claims (10)
1. The utility model provides a femoral neck coaptation board, its characterized in that, includes lockplate, combination board, angulation set screw, lag screw and bolt, lockplate and combination board integrated into one piece, be equipped with a plurality of LCP hole on the combination board, be equipped with angulation set screw hole and lag screw hole on the lockplate, the lag screw hole sets up to the direction slope of angulation set screw hole, the bottom surface of lag screw hole is connected with the sleeve, lag screw runs through lag screw hole and sleeve to through bolt and lockplate fixed connection, angulation set screw runs through angulation set screw hole and lag screw to through bolt and lockplate fixed connection, angulation set screw and lag screw staggered connection each other.
2. The femoral neck bone plate of claim 1, wherein the bolt is a hollow cylindrical structure, the top of the bolt is provided with a first external thread, and the bottom of the bolt is provided with a second external thread.
3. The femoral neck bone plate of claim 2, wherein the head of the angled set screw is internally threaded, the first external thread of the bolt is coupled to the angled set screw hole, and the second external thread of the bolt is coupled to the internal thread of the angled set screw.
4. The femoral neck bone plate of claim 2, wherein the head of the lag screw is internally threaded, the first external thread of the bolt is coupled to the lag screw hole, and the second external thread of the bolt is coupled to the internal thread of the lag screw.
5. The femoral neck bone plate of claim 1, wherein the angled set screw is a hollow cylindrical structure and the outer wall of the angled set screw is provided with a bone thread.
6. The femoral neck bone plate of claim 5, wherein the lag screw is a hollow cylindrical structure, the outer wall of the lag screw is provided with bone threads, the lag screw is provided with an angled fixation hole, and the angled fixation screw extends through the angled fixation hole.
7. The femoral neck bone plate of claim 1, wherein the locking plate and the coupling plate are contoured on one side with an anatomically curved surface.
8. The femoral neck bone plate of claim 1, wherein the LCP holes are four in number and are linearly distributed on the bonding plate.
9. The femoral neck bone plate of claim 1, wherein the number of the lag screw holes is two and is distributed at an end of the locking plate adjacent to the coupling plate.
10. The femoral neck bone plate of claim 1, wherein the angled set screw holes are one in number and distributed at an end of the locking plate distal from the coupling plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011124266.9A CN112370141A (en) | 2020-10-20 | 2020-10-20 | Femoral neck bone fracture plate with double sleeves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011124266.9A CN112370141A (en) | 2020-10-20 | 2020-10-20 | Femoral neck bone fracture plate with double sleeves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112370141A true CN112370141A (en) | 2021-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011124266.9A Pending CN112370141A (en) | 2020-10-20 | 2020-10-20 | Femoral neck bone fracture plate with double sleeves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112370141A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2706135Y (en) * | 2004-03-26 | 2005-06-29 | 昌耘冰 | Femur neck bone fracture self locking coaptation device |
| CN101695455A (en) * | 2009-10-16 | 2010-04-21 | 张英泽 | Triangle support bone fracture plate for treating fracture between femoral neck and tuberosity |
| CN202288433U (en) * | 2011-09-27 | 2012-07-04 | 张英泽 | Improved triangular support screw and bone fracture plate |
| CN202960725U (en) * | 2012-11-06 | 2013-06-05 | 天津正天医疗器械有限公司 | Proximal femur locking device |
| CN104688311A (en) * | 2015-03-17 | 2015-06-10 | 苏州瑞华医院有限公司 | Femoral intertrochanteric fracture double-sleeve type osteosynthesis device |
| US20180199966A1 (en) * | 2003-05-30 | 2018-07-19 | DePuy Synthes Products, Inc. | Bone Plate |
| EP3375392A1 (en) * | 2017-03-13 | 2018-09-19 | Globus Medical, Inc. | Bone stabilization systems |
| CN208799307U (en) * | 2017-11-09 | 2019-04-30 | 李海峰 | Percutaneous fixation device for intertrochanteric fracture |
| CN208864465U (en) * | 2018-05-23 | 2019-05-17 | 常州华森医疗器械有限公司 | A kind of hip screw locking bone fracture plate |
| WO2019136006A1 (en) * | 2018-01-02 | 2019-07-11 | Acumed Llc | Bone fixation with a plate and a coupler connected by flexible members |
-
2020
- 2020-10-20 CN CN202011124266.9A patent/CN112370141A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180199966A1 (en) * | 2003-05-30 | 2018-07-19 | DePuy Synthes Products, Inc. | Bone Plate |
| CN2706135Y (en) * | 2004-03-26 | 2005-06-29 | 昌耘冰 | Femur neck bone fracture self locking coaptation device |
| CN101695455A (en) * | 2009-10-16 | 2010-04-21 | 张英泽 | Triangle support bone fracture plate for treating fracture between femoral neck and tuberosity |
| CN202288433U (en) * | 2011-09-27 | 2012-07-04 | 张英泽 | Improved triangular support screw and bone fracture plate |
| CN202960725U (en) * | 2012-11-06 | 2013-06-05 | 天津正天医疗器械有限公司 | Proximal femur locking device |
| CN104688311A (en) * | 2015-03-17 | 2015-06-10 | 苏州瑞华医院有限公司 | Femoral intertrochanteric fracture double-sleeve type osteosynthesis device |
| EP3375392A1 (en) * | 2017-03-13 | 2018-09-19 | Globus Medical, Inc. | Bone stabilization systems |
| CN208799307U (en) * | 2017-11-09 | 2019-04-30 | 李海峰 | Percutaneous fixation device for intertrochanteric fracture |
| WO2019136006A1 (en) * | 2018-01-02 | 2019-07-11 | Acumed Llc | Bone fixation with a plate and a coupler connected by flexible members |
| CN208864465U (en) * | 2018-05-23 | 2019-05-17 | 常州华森医疗器械有限公司 | A kind of hip screw locking bone fracture plate |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210219 |
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| RJ01 | Rejection of invention patent application after publication |