CN209220462U - A kind of near end of thighbone Medullary fixation device - Google Patents
A kind of near end of thighbone Medullary fixation device Download PDFInfo
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- CN209220462U CN209220462U CN201721736919.2U CN201721736919U CN209220462U CN 209220462 U CN209220462 U CN 209220462U CN 201721736919 U CN201721736919 U CN 201721736919U CN 209220462 U CN209220462 U CN 209220462U
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Abstract
The utility model near end of thighbone Medullary fixation device, it is a kind of applied to orthopaedics therapy fractured near end of thighbone, the Medullary fixation device for carrying out broken ends of fractured bone reset, connection, fixation, belongs to medical instrument, including the main nail of intramedullary nail with lock, proximal end pinning, distal locking nail, tail plug.Wherein in the main nail insertion human body pulp cavity of intramedullary nail with lock, proximal end pinning and distal locking nail pass through the main nail nail hole of intramedullary nail with lock, tail plug screws in the main nail tailing screw flight hole of intramedullary nail with lock, resetted, connected and fixed to fracture site by cortical bone.The main nail of intramedullary nail is hollow structure, and proximal end is spindle locking nail hole, distally at right-angled intersection bifurcated；Intramedullary nail proximal end pinning is hollow structure, is screw blade pattern, and bone cement injection hole is arranged in blade end, and distal locking nail designs for full thread, and proximal end pinning and distal locking nail pass through the main nail nail hole of intramedullary nail with lock by cortical bone.Tail plug is interior hexagonal or interior hexagonal flower-shape driving type, is connected by screw thread and the main nail of intramedullary nail with lock.
Description
Technical field
The utility model near end of thighbone Medullary fixation device is a kind of applied to orthopaedics therapy fractured near end of thighbone, is carried out
The broken ends of fractured bone resets, connection, fixed Medullary fixation device, belongs to medical instrument, including the main nail of intramedullary nail with lock, proximal end pinning, far
Hold pinning, tail plug.
Background technique
Currently, orthopaedics therapy fractured near end of thighbone is main means using implants, implants are mainly metal bone fracture plate,
Spheric pressure hole, locking screw thread hole or dynamic pressurization and locking screw thread combined hole are set on bone plate, by various forms of
Fracture site is fixed in bone screw, and then achievees the purpose that treat bone fracture and osteopathy.Wherein: Dynamic Compression Plate adds
It presses the placement of screw to complete fracture region axial pressure, forms Titanic micro-plates, such product is when union, no poroma
It is formed, may result in infection, bone nonunion and fracture delayed union；Locking screw thread hole, spiral shell are arranged on bone plate for locking bone fracture plate
Line is double thread structure, by lock screw, is formed in a metastable bridge joint and is fixed, can generated and be formed with poroma
The second stage of knitting, such product can not pressurize to fracture site, strong bone plate, strong screw and fracture segment point
From this triplicity gets up will lead to locking system extraction, broken nail under bone nonunion, stress；Locked pressurized bone plate was both
Dynamic Compression Plate use can be served only as, inner support can also be used as to use or upper two ways by lock screw
Joint.Bone plate implants are that tension side is fixed, and are easy to happen stress shielding, generate fatigue fracture, implants is caused to be lost
Effect.
Summary of the invention
The purpose of this utility model is to provide a kind of stock for the shortcoming of bone plate implants product described above
Proximal bone Medullary fixation device, wherein in the main nail insertion human body pulp cavity of intramedullary nail with lock, proximal end pinning and distal locking nail pass through bone
Cortex passes through the main nail nail hole of intramedullary nail with lock, and tail plug screws in the main nail tailing screw flight hole of intramedullary nail with lock, carries out to fracture site
It resets, connect and fixes, prevent main follow closely of intramedullary nail with lock from the solid failures such as rotating, shifting in pulp cavity, centered on Medullary fixation
It is fixed, increase the stability of fracture fixation.
Near end of thighbone Medullary fixation device takes following scheme to implement: near end of thighbone Medullary fixation device includes locking
The main nail of intramedullary nail, proximal end pinning, distal locking nail, tail plug.The main nail of intramedullary nail is hollow structure, and proximal end is spindle locking nail hole, if
It is equipped with a proximal locking nail hole, a common distal locking nail hole, tail portion is helicitic texture, distally at right-angled intersection bifurcated；In marrow
Nail proximal end pinning is hollow structure, is screw blade pattern, bone cement injection hole is arranged in blade end, distal locking nail is full thread
Design, proximal end pinning and distal locking nail pass through the main nail nail hole of intramedullary nail with lock, proximal end pinning and proximal locking nail hole by cortical bone
It is used cooperatively, distal locking nail is used cooperatively with distal locking nail hole.Tail plug be interior hexagonal or interior hexagonal flower-shape driving type, tail plug with
Main nail tailing screw flight structure is used cooperatively, and is connected by screw thread and the main nail of intramedullary nail with lock.
The design of near end of thighbone Medullary fixation device meets Human Physiology anatomical structure, has good biomechanical property,
It, can be with since intramedullary nail with lock master nails on and is provided with spindle locking nail hole and distal locking nail hole near end of thighbone Medullary fixation device
Proximal end pinning and distal locking nail are installed.The main nail of intramedullary nail with lock is fixed on subjects bones' marrow by the above structure type of the utility model
It is intracavitary, while nail main to intramedullary nail with lock is fixed simultaneously for proximal end pinning and distal locking nail, prevents from rotating, enhances fracture fixation
Reliability, accelerate fracture healing, guarantee successful surgery, reduce the risk of second operation, reduce the pain of sufferer.
Detailed description of the invention
It is the further explanation in conjunction with attached drawing to the utility model below.
Fig. 1 is the main nail main view of intramedullary nail with lock near end of thighbone Medullary fixation device.
Fig. 2 is the proximal end pinning main view near end of thighbone Medullary fixation device.
Fig. 3 is the distal locking nail main view near end of thighbone Medullary fixation device.
Fig. 4 is the tail plug schematic diagram near end of thighbone Medullary fixation device.
Fig. 5 is schematic diagram after the implantation of near end of thighbone Medullary fixation device
Specific embodiment
Referring to attached drawing 1~5, near end of thighbone Medullary fixation apparatus structure has the main nail 1 of intramedullary nail with lock, in intramedullary nail with lock
Proximal end spindle locking nail hole 1-1 is arranged in main nail proximal end, and distal locking nail hole 1-2 is arranged in the main nail distal end of intramedullary nail with lock, locking
Intramedullary nail main nail distal end is at right-angled intersection bifurcated 1-3 (see figure, 1).Proximal end pinning 2, is hollow structure, and head is screw blade type
Bone cement injection hole 2-2 is arranged in blade end in formula 2-1 (see Fig. 2).Distal locking nail 3 designs for full thread (see Fig. 3).Tail plug is
Helicitic texture 4-1, using interior hexagonal or interior hexagonal flower-shape driving type 4-2,4-3 (see Fig. 4).
Near end of thighbone Medullary fixation device when in use, the main nail 1 of intramedullary nail with lock is placed in inside human body pulp cavity, bone is used
Intramedullary nail with lock 1 proximal end spindle locking nail hole 1-1 and distal locking nail hole 1-2 of main nail was drilled through, bottom outlet is bored on bone, implantation is close
Pinning 2 is held, if you need to increase proximal end pinning to the holding power of bone, bone cement can be injected by bone cement injection hole 2-2, implantation is remote
Pinning 3 is held, after completing the above operation, screws in tail plug 4, making tail, screw thread 4-1 and main nail tailing screw flight 1-4 is screwed beyond the Great Wall, and femur is close
It holds the implantation of Medullary fixation device to complete (see Fig. 5), completes surgical procedure.
Claims (1)
1. a kind of near end of thighbone Medullary fixation device, including the main nail of intramedullary nail with lock, proximal end pinning, distal locking nail, tail plug, special
Sign is that the main nail of intramedullary nail is hollow structure, is provided with a proximal locking nail hole, a common distal locking nail hole, tail portion is screw thread
Structure, distally at right-angled intersection bifurcated, intramedullary nail proximal end pinning is hollow structure, and head is screw blade pattern, in blade end
Bone cement injection hole is set, and proximal end pinning is used cooperatively with proximal locking nail hole, and distal locking nail is used cooperatively with distal locking nail hole, tail
Plug is used cooperatively with main nail tailing screw flight structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721736919.2U CN209220462U (en) | 2017-12-13 | 2017-12-13 | A kind of near end of thighbone Medullary fixation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721736919.2U CN209220462U (en) | 2017-12-13 | 2017-12-13 | A kind of near end of thighbone Medullary fixation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209220462U true CN209220462U (en) | 2019-08-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721736919.2U Active CN209220462U (en) | 2017-12-13 | 2017-12-13 | A kind of near end of thighbone Medullary fixation device |
Country Status (1)
| Country | Link |
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| CN (1) | CN209220462U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111281511A (en) * | 2020-02-27 | 2020-06-16 | 天津市威曼生物材料有限公司 | Anatomical proximal femoral intramedullary nail |
| CN112057152A (en) * | 2020-09-11 | 2020-12-11 | 天津市威曼生物材料有限公司 | Intramedullary nail system |
| CN113995490A (en) * | 2021-09-22 | 2022-02-01 | 河北医科大学 | Proximal femur anti-rotation intramedullary nail |
-
2017
- 2017-12-13 CN CN201721736919.2U patent/CN209220462U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111281511A (en) * | 2020-02-27 | 2020-06-16 | 天津市威曼生物材料有限公司 | Anatomical proximal femoral intramedullary nail |
| CN112057152A (en) * | 2020-09-11 | 2020-12-11 | 天津市威曼生物材料有限公司 | Intramedullary nail system |
| CN113995490A (en) * | 2021-09-22 | 2022-02-01 | 河北医科大学 | Proximal femur anti-rotation intramedullary nail |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhao Guojun Inventor after: Xie Honghui Inventor after: Bi Yunlong Inventor after: Ji Jianfeng Inventor after: Wu Yanzeng Inventor before: Zhao Guojun Inventor before: Xie Honghui |
|
| CB03 | Change of inventor or designer information |