CN110974385A - Intramedullary fixation auxiliary device for intertrochanteric fracture of femur - Google Patents
Intramedullary fixation auxiliary device for intertrochanteric fracture of femur Download PDFInfo
- Publication number
- CN110974385A CN110974385A CN201911340605.4A CN201911340605A CN110974385A CN 110974385 A CN110974385 A CN 110974385A CN 201911340605 A CN201911340605 A CN 201911340605A CN 110974385 A CN110974385 A CN 110974385A
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- CN
- China
- Prior art keywords
- connecting plate
- intramedullary
- intramedullary fixation
- fracture
- plate
- 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.)
- Pending
Links
- 206010020100 Hip fracture Diseases 0.000 title claims abstract description 12
- 210000000689 upper leg Anatomy 0.000 title abstract description 8
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 24
- 206010017076 Fracture Diseases 0.000 claims abstract description 17
- 208000010392 Bone Fractures Diseases 0.000 claims abstract description 16
- 230000010354 integration Effects 0.000 abstract 1
- 210000000527 greater trochanter Anatomy 0.000 description 8
- 241000446313 Lamella Species 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 210000002436 femur neck Anatomy 0.000 description 3
- 241000587161 Gomphocarpus Species 0.000 description 2
- 241000766655 Macrocephalon Species 0.000 description 2
- 230000008092 positive effect Effects 0.000 description 2
- 208000008924 Femoral Fractures Diseases 0.000 description 1
- 206010053206 Fracture displacement Diseases 0.000 description 1
- 208000035965 Postoperative Complications Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 210000000528 lesser trochanter Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000001009 osteoporotic effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
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
- A61B17/80—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates
- A61B17/8061—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates specially adapted for particular bones
-
- 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
- A61B17/72—Intramedullary pins, nails or other devices
-
- 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
- A61B17/742—Devices for the head or neck or trochanter of the femur having one or more longitudinal elements oriented along or parallel to the axis of the neck
- A61B17/744—Devices for the head or neck or trochanter of the femur having one or more longitudinal elements oriented along or parallel to the axis of the neck the longitudinal elements coupled to an intramedullary nail
-
- 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
- A61B17/742—Devices for the head or neck or trochanter of the femur having one or more longitudinal elements oriented along or parallel to the axis of the neck
- A61B17/746—Devices for the head or neck or trochanter of the femur having one or more longitudinal elements oriented along or parallel to the axis of the neck the longitudinal elements coupled to a plate opposite the femoral head
-
- 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
Abstract
The invention discloses an auxiliary device for intramedullary fixation of femoral intertrochanteric fracture, which comprises a fixing bone plate, wherein a first connecting part for connecting a large tuberosity is arranged at the near end of the fixing bone plate, a second connecting part for connecting a femoral stem part is arranged at the far end of the fixing bone plate, a sliding hole is arranged on the fixing bone plate corresponding to a fracture intramedullary fixing device, one end of a connecting piece penetrates through the sliding hole to be connected with the fracture intramedullary fixing device, and the external dimension of the other end of the connecting piece is larger than that of the sliding hole. The invention can combine the bone fixing plate and the fracture intramedullary fixing device into a whole, realizes the reconstruction of the outer side wall of the proximal end of the femur and the integration of the internal intramedullary fixing device, realizes the firm fixation of the tuberosity and effectively avoids the failure of the intramedullary fixing device.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to an auxiliary device for intramedullary fixation of intertrochanteric fracture of femur.
Background
Intertrochanteric femoral fractures are fractures that involve mainly between the base of the femoral neck and the lesser tuberosity, accounting for about 50% of hip fractures, occurring mainly in osteoporotic populations. The treatment of intertrochanteric fracture by intra-operative fixation is the current gold standard, in particular to intramedullary nail minimally invasive surgery fixation. However, the current internal fixation device lacks effective fixation of the great trochanter, which may result in the great trochanter failing to obtain effective internal fixation, and postoperative complications such as fracture displacement and gluteal weakness may occur. The existing macrocephalon protection plate is mainly fixed in a mode of locking a steel plate, and the special anatomical form of the macrocephalon and physiological factors of traction of multiple muscle insertion points are not considered, so that the fixing effect is poor.
Disclosure of Invention
In order to solve the technical problems, the invention provides an auxiliary device for intramedullary fixation of femoral intertrochanteric fracture.
The auxiliary device for intramedullary fixation of femoral intertrochanteric fracture comprises a fixing bone plate, wherein a first connecting part used for connecting the greater trochanter is arranged at the near end of the fixing bone plate, a second connecting part used for connecting a femoral stem part is arranged at the far end of the fixing bone plate, a sliding hole is formed in the fixing bone plate corresponding to the intramedullary fixation device for fracture, one end of a connecting piece penetrates through the sliding hole to be connected with the intramedullary fixation device for fracture, and the external dimension of the other end of the connecting piece is larger than that of the sliding hole.
Preferably, the intramedullary fixation device is an intramedullary nail main nail, and the connecting piece is a head nail bolt matched with the intramedullary nail main nail.
Above technical scheme is preferred, the slip hole is the oval through-hole of vertical setting.
Above technical scheme is preferred, first connecting portion include encircle the first connecting plate in the big tuberosity outside and locate a plurality of grapple of first connecting plate top.
Above technical scheme is preferred, the second connecting portion include the second connecting plate, the second connecting plate is located the below of first connecting plate.
Above technical scheme is preferred, the front side between first connecting plate and the second connecting plate is equipped with the third connecting plate of inside extension.
Above technical scheme is preferred, first connecting plate, grapple, second connecting plate and third connecting plate integrated into one piece.
According to the preferable technical scheme, the first connecting part is provided with a locking hole, and a locking screw penetrates through the locking hole to be connected with the large tuberosity.
Preferably, in the above technical solution, the second connecting plate is provided with a plurality of locking holes staggered with each other, and the locking screw passes through the locking hole to be connected with the femoral stem.
Preferably, in the above technical solution, the first connection portion further includes a screw disposed obliquely, and an oblique direction of the screw is from the large tuberosity toward the small tuberosity.
The invention has the advantages and positive effects that: the invention provides an auxiliary device for intramedullary fixation of femoral intertrochanteric fracture, which can realize the connection of the greater trochanter by arranging a first connecting part; the second connecting part is arranged, so that the connection of the femoral stem part can be realized; through the arrangement of the connecting piece, one end of the connecting piece penetrates through the sliding hole of the fixing bone lamella to be connected with the fracture intramedullary fixing device, the fixing bone lamella and the fracture intramedullary fixing device are connected into a whole, the reconstruction of the outer side wall of the proximal end of the femur and the internal intramedullary fixing device are integrated, and the firm fixation of the tuberosity can be realized.
Drawings
FIG. 1 is a schematic view of a femur;
FIG. 2 is a first schematic structural diagram of an auxiliary device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an auxiliary device according to an embodiment of the present invention;
fig. 4 is a usage status diagram of the auxiliary device according to an embodiment of the present invention.
Wherein: 1. the femoral head; 2. a femoral neck; 3. piriformis fossa; 4. a macrosodium tuberosum; 5. a small tuberosity; 6. the intercarious cristae; 7. a femoral stem; 8. a slide hole; 9. a main intramedullary nail; 10. a stud bolt; 11. a first connecting plate; 12. a grapple; 13. a locking hole; 14. a second connecting plate; 15. a third connecting plate; 16. and (4) screws.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1, the femur comprises a femoral head 1, a femoral neck 2, a piriformis fossa 3, a lateral greater tuberosity 4, a medial lesser tuberosity 5, an intertrochanteric crest 6, and a femoral stem 7. The embodiment provides an auxiliary device for intramedullary fixation of femoral intertrochanteric fracture, as shown in fig. 2-4, the auxiliary device comprises a fixing bone plate, a first connecting part for connecting the greater trochanter is arranged at the near end of the fixing bone plate, a second connecting part for connecting the femoral stem is arranged at the far end of the fixing bone plate, a sliding hole 8 is arranged on the fixing bone plate corresponding to the intramedullary fixation device for fracture, one end of a connecting piece penetrates through the sliding hole 8 to be connected with the intramedullary fixation device for fracture, the external dimension of the other end of the connecting piece is larger than that of the sliding hole 8, so that the other end of the connecting piece is clamped outside the sliding hole 8, and the connection of the fixing bone plate and the intramedullary fixation device for.
Optionally, the intramedullary fixation device of the present embodiment is a main intramedullary nail 9, and the connecting member is a head nail bolt 10 matched with the main intramedullary nail 9. The head bolt comprises a bolt rod and a bolt cap, the bolt rod of the head bolt 10 can be in threaded connection with the nail head of the main intramedullary nail 9, the overall dimension of the bolt cap is larger than the width of the sliding hole 8, and the bolt cap is clamped outside the sliding hole 8, so that the connection of the bone plate and the main intramedullary nail 9 is realized.
Optionally, the sliding hole 8 is a vertically arranged oblong through hole to accommodate the micromotion of the intramedullary nail main nail 9.
Specifically, the first connecting portion includes a first connecting plate 11 surrounding the outer side of the tuberosity and a plurality of grapples 12 arranged above the first connecting plate 11. In the embodiment, two side-by-side grappling hooks 12 are arranged above the first connecting plate 11, and the grappling hooks 12 hook the vertex of the large tuberosity, so that the stability of the connection of the fixing bone plate and the large tuberosity is improved. The grapple 12 may also be 1, 3, or 4, etc. The first connecting part is provided with a locking hole 13, and a locking screw passes through the locking hole 13 to be connected with the large tuberosity. The location and number of locking holes 13 are not particularly limited by the present application and may be adapted for specific uses.
Optionally, the second connecting portion includes a second connecting plate 14, and the second connecting plate 14 is disposed below the first connecting plate 11. The width of the second connecting plate 14 is smaller than that of the first connecting plate 11; the second connecting plate 14 is provided with a plurality of mutually staggered locking holes 13, and locking screws pass through the locking holes 13 to be connected with the femoral stem part while avoiding the main intramedullary nail 9.
In order to treat the coronal fracture, a third connecting plate 15 extending inwards is arranged on the front side between the first connecting plate 11 and the second connecting plate 14, a locking hole 13 is arranged on the third connecting plate 15, and a locking screw is arranged in the locking hole 13. The third attachment plate 15 is intended for use with the posterior side wall of the fixation plate after the posterior design reconstruction and may be removed intraoperatively when not needed.
Optionally, the first connecting plate 11, the grapple 12, the second connecting plate 14 and the third connecting plate 15 are integrally formed.
To further improve the stability of the connection of the greater trochanter to the fixation plate, the first connection portion optionally further comprises an obliquely disposed screw 16, the inclination of the screw 16 being directed from the greater trochanter toward the lesser trochanter. Specifically, in the present embodiment, the first connecting plate 11 is provided with a corresponding locking hole 13 above the middle of the locking hole 13 for connecting a screw 16, and the screw 16 is driven into the large tuberosity through the locking hole 13 from the inclination of the large tuberosity toward the small tuberosity.
The material of this embodiment is titanium alloy, and the rest except the middle sliding hole 8 is the locking hole 13, adopts the locking screw series of 3.5 specifications. The proximal end is provided with a screw towards the direction of the femoral lesser tuberosity and adopts a double-hook design for reinforcing connection; the sliding hole 8 with wider middle and long length is connected with the head of the intramedullary nail main nail 9 through a head nail bolt 10; the far end adopts double-row screws to avoid the connection of the main intramedullary nail 9 and the femoral stem part.
The working process of the embodiment: after the intra-operative fixing device is installed, the first connecting part of the auxiliary device is arranged corresponding to the large tuberosity, the second connecting part is arranged corresponding to the femoral stem part, and the head nail bolt 10 penetrates through the sliding hole 8 to be in threaded connection with the nail head of the intramedullary nail main nail 9 of the intra-operative fixing device. This embodiment is applicable to the fracture patient of the medial and lateral sides simultaneously between the femoral tuberosity, rebuilds the great tuberosity lateral wall through fixed hone lamella, avoids the intramedullary nail inefficacy risk.
The invention has the advantages and positive effects that: the invention provides an auxiliary device for intramedullary fixation of femoral intertrochanteric fracture, which can realize the connection of the greater trochanter by arranging a first connecting part; the second connecting part is arranged, so that the connection of the femoral stem part can be realized; through the arrangement of the connecting piece, one end of the connecting piece penetrates through the sliding hole 8 of the fixing bone lamella to be connected with the fracture intramedullary fixing device, the fixing bone lamella and the fracture intramedullary fixing device are connected into a whole, the reconstruction of the outer side wall of the proximal end of the femur and the internal intramedullary fixing device are integrated, and the firm fixation of the tuberosity can be realized.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (10)
1. The auxiliary device for intramedullary fixation of femoral intertrochanteric fracture is characterized by comprising a fixing bone plate, wherein a first connecting part used for connecting the large tuberosity is arranged at the near end of the fixing bone plate, a second connecting part used for connecting a femoral stem part is arranged at the far end of the fixing bone plate, a sliding hole is formed in the fixing bone plate corresponding to the intramedullary fixation device for fracture, one end of a connecting piece penetrates through the sliding hole to be connected with the intramedullary fixation device for fracture, and the outer dimension of the other end of the connecting piece is larger than that of the sliding hole.
2. The intramedullary fixation aid of claim 1, wherein: the fracture intramedullary fixation device is an intramedullary nail main nail, and the connecting piece is a head nail bolt matched with the intramedullary nail main nail.
3. The intramedullary fixation aid of claim 2, wherein: the sliding hole is a vertically arranged oblong through hole.
4. The intramedullary fixation aid of claim 1, wherein: first connecting portion include encircle the first connecting plate in the macrostoma outside and locate a plurality of grapple of first connecting plate top.
5. The intramedullary fixation aid of claim 4, wherein: the second connecting portion comprises a second connecting plate, and the second connecting plate is arranged below the first connecting plate.
6. The intramedullary fixation aid of claim 5, wherein: and a third connecting plate extending inwards is arranged on the front side between the first connecting plate and the second connecting plate.
7. The intramedullary fixation aid of claim 6, wherein: the first connecting plate, the grapple, the second connecting plate and the third connecting plate are integrally formed.
8. The intramedullary fixation aid of claim 4, wherein: and a locking hole is formed in the first connecting part, and a locking screw penetrates through the locking hole to be connected with the large tuberosity.
9. The intramedullary fixation aid of claim 5, wherein: the second connecting plate is provided with a plurality of mutually staggered locking holes, and locking screws penetrate through the locking holes to be connected with the femoral stem.
10. The intramedullary fixation aid of claim 4, wherein: the first connecting part further comprises a screw which is obliquely arranged, and the oblique direction of the screw is from the large tuberosity to the small tuberosity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911340605.4A CN110974385A (en) | 2019-12-23 | 2019-12-23 | Intramedullary fixation auxiliary device for intertrochanteric fracture of femur |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911340605.4A CN110974385A (en) | 2019-12-23 | 2019-12-23 | Intramedullary fixation auxiliary device for intertrochanteric fracture of femur |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110974385A true CN110974385A (en) | 2020-04-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911340605.4A Pending CN110974385A (en) | 2019-12-23 | 2019-12-23 | Intramedullary fixation auxiliary device for intertrochanteric fracture of femur |
Country Status (1)
| Country | Link |
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| CN (1) | CN110974385A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112006768A (en) * | 2020-09-23 | 2020-12-01 | 杨润松 | Combined fixing device for femoral intramedullary nail steel plate |
| CN114209408A (en) * | 2021-12-18 | 2022-03-22 | 浙江大学 | Locking steel plate for locking, reconstructing and locking distal lateral condyle fracture of femur |
| JP7159434B1 (en) * | 2021-12-22 | 2022-10-24 | ＨＯＹＡ Ｔｅｃｈｎｏｓｕｒｇｉｃａｌ株式会社 | Intramedullary nail auxiliary device and osteosynthesis device using the same |
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| CN204092154U (en) * | 2014-07-14 | 2015-01-14 | 苏州瑞华医院有限公司 | A kind of bone-knitting device for the treatment of intertrochanteric fracture of the femur |
| CN104414724A (en) * | 2013-08-31 | 2015-03-18 | 郭晓山 | Internal fixing system for femoral trochanter nail plate |
| CN212592375U (en) * | 2019-12-23 | 2021-02-26 | 首都医科大学附属北京潞河医院 | Intramedullary fixation auxiliary device for intertrochanteric fracture of femur |
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| US20060084999A1 (en) * | 2003-04-09 | 2006-04-20 | Felix Aschmann | Intramedullary nail for femur fracture fixation |
| US8267972B1 (en) * | 2006-12-01 | 2012-09-18 | Gehlert Rick J | Bone plate |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112006768A (en) * | 2020-09-23 | 2020-12-01 | 杨润松 | Combined fixing device for femoral intramedullary nail steel plate |
| CN114209408A (en) * | 2021-12-18 | 2022-03-22 | 浙江大学 | Locking steel plate for locking, reconstructing and locking distal lateral condyle fracture of femur |
| CN114209408B (en) * | 2021-12-18 | 2023-04-14 | 浙江大学 | Locking steel plate for locking, reconstructing and locking distal lateral condyle fracture of femur |
| JP7159434B1 (en) * | 2021-12-22 | 2022-10-24 | ＨＯＹＡ Ｔｅｃｈｎｏｓｕｒｇｉｃａｌ株式会社 | Intramedullary nail auxiliary device and osteosynthesis device using the same |
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