CN208710033U - A kind of shin bone Medullary fixation device - Google Patents
A kind of shin bone Medullary fixation device Download PDFInfo
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- CN208710033U CN208710033U CN201721738532.0U CN201721738532U CN208710033U CN 208710033 U CN208710033 U CN 208710033U CN 201721738532 U CN201721738532 U CN 201721738532U CN 208710033 U CN208710033 U CN 208710033U
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Abstract
The utility model shin bone 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, cancellous bone pinning, cortex bone pinning, tail plug.Wherein in the main nail insertion human body pulp cavity of intramedullary nail with lock, cancellous bone pinning and cortex bone pinning 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 by cortical bone.The main nail of intramedullary nail is hollow structure, and tail portion is helicitic texture, 3 cancellous bone locking nail holes of the angled distribution in proximal end, 1 pressurization locking nail hole, 1 cortex bone locking nail hole, 5-10 ° of angulation of neck, 4 cortex bone locking nail holes of the angled distribution in distal end, 1 pressurization platform；Cancellous bone pinning is designed close to nut portion for shallow thread, is designed close to shank portion for deep thread；Cortex bone pinning is full thread structure, shallow thread design.
Description
Technical field
The utility model shin bone Medullary fixation device, be it is a kind of be applied to orthopaedics therapy fracture of tibia, carry out broken ends of fractured bone reset,
Connection, fixed Medullary fixation device belong to medical instrument, including the main nail of intramedullary nail with lock, cancellous bone pinning, cortex bone lock
Nail, tail plug.
Background technique
Currently, orthopaedics therapy fracture of tibia is main means using implants, implants are mainly metal bone fracture plate, synthetism
Spheric pressure hole, locking screw thread hole or dynamic pressurization and locking screw thread combined hole are set on plate, pass through various forms of synthetisms
Fracture site is fixed in screw, and then achievees the purpose that treat bone fracture and osteopathy.Wherein: Dynamic Compression Plate, pressurize spiral shell
Fracture region axial pressure is completed in the placement of nail, forms Titanic micro-plates, such product is when union, no poroma shape
At may result in infection, bone nonunion and fracture delayed union；Locking screw thread hole, screw thread are arranged on bone plate for locking bone fracture plate
It is formed in a metastable bridge joint and is fixed by lock screw for double thread structure, 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 shin bone marrow for the deficiency of bone plate implants product described above
Inner fixing device, wherein in the main nail insertion human body pulp cavity of intramedullary nail with lock, cancellous bone pinning and cortex bone pinning pass through cortical bone,
Across the main nail nail hole of intramedullary nail with lock, tail plug is screwed in the main nail tailing screw flight hole of intramedullary nail with lock, fracture site is resetted,
It connects and fixed, prevents the main nail of intramedullary nail with lock solid failures such as rotation, displacement in pulp cavity, fixed centered on Medullary fixation,
Increase the stability of fracture fixation.
2, shin bone Medullary fixation device takes following scheme to implement: shin bone Medullary fixation device includes intramedullary nail with lock
Main nail, cancellous bone pinning, cortex bone pinning, tail plug.The main nail of intramedullary nail is hollow structure, and bending angle meets human body at rivet nut two
Physiological angle, tail portion are helicitic texture, 3 cancellous bone locking nail holes of the angled distribution in proximal end, 1 pressurization locking nail hole, 1 cortex bone
Locking nail hole, 5-10 ° of angulation of neck, 4 cortex bone locking nail holes of the angled distribution in distal end, 1 pressurization platform；Cancellous bone pinning is close
Nut portion designs for shallow thread, designs close to shank portion for deep thread；Cortex bone pinning is full thread structure, and shallow thread is set
Meter；Cancellous bone pinning and cortex bone pinning pass through the main nail nail hole of intramedullary nail with lock by cortical bone.Tail plug is interior hexagonal or interior six
Corner piece shape driving type is connected by screw thread and the main nail of intramedullary nail with lock.
The design of shin bone Medullary fixation device meets Human Physiology anatomical structure, has good biomechanical property, due to
Intramedullary nail with lock master, which nails on, in shin bone Medullary fixation device is provided with cancellous bone locking nail hole, pressurization locking nail hole and cortex bone pinning
Hole can install cancellous bone pinning and cortex bone pinning.The above structure type of the utility model fixes the main nail of intramedullary nail with lock
In subjects bones' pulp cavity, while nail main to intramedullary nail with lock is fixed simultaneously for cancellous bone pinning and cortex bone pinning, prevents
Rotation, enhances the reliability of fracture fixation, accelerates the healing of fracture, guarantees successful surgery, reduces the risk of second operation, subtract
The pain of few 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 in shin bone Medullary fixation device.
Fig. 2 is the cancellous bone pinning main view in shin bone Medullary fixation device.
Fig. 3 is the cortex bone pinning main view in shin bone Medullary fixation device.
Fig. 4 is the tail plug schematic diagram in shin bone Medullary fixation device.
Fig. 5 is schematic diagram after the implantation of shin bone Medullary fixation device
Specific embodiment
Referring to attached drawing 1~5, shin bone Medullary fixation apparatus structure has the main nail 1 of intramedullary nail with lock, the angled distribution 3 in proximal end
A cancellous bone locking nail hole 1-1,1 pressurization locking nail hole 1-2,1 cortex bone locking nail hole 1-3, the 4 cortex bone locking nail hole 1-4 in distal end,
1 pressurization platform 1-5, tail portion are helicitic texture 1-6 (see Fig. 1).Cancellous bone pinning 2 is designed close to nut portion for shallow thread
2-1 designs 2-2 close to shank portion for deep thread (see Fig. 2).Cortex bone pinning 3 be full thread structure, shallow thread design (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).
When in use, the main nail 1 of intramedullary nail with lock is placed in inside human body pulp cavity for shin bone Medullary fixation device, logical using bone drill
The main nail 1 cancellous bone locking nail hole 1-1, cortex bone locking nail hole 1-3,1-4 of intramedullary nail with lock is crossed, pressurization locking nail hole 1-2 is bored on bone
Bottom outlet is implanted into cancellous bone pinning 2, is implanted into cortex bone pinning 3, after completing the above operation, screws in tail plug 4, makes tail screw thread 4-1 beyond the Great Wall
It is screwed with main nail tailing screw flight 1-6, (see Fig. 5) is completed in the implantation of shin bone Medullary fixation device, completes surgical procedure.
Claims (7)
1. a kind of shin bone Medullary fixation device, including the main nail of intramedullary nail with lock, cancellous bone pinning, cortex bone pinning, tail plug, special
It levies and is that the main nail of intramedullary nail is hollow structure, tail portion is helicitic texture, and 3 cancellous bone locking nail holes of the angled distribution in proximal end, 1 adds
Press locking nail hole, 1 cortex bone locking nail hole, 5-10 ° of angulation of neck, 4 cortex bone locking nail holes of the angled distribution in distal end, 1 pressurization
Platform, cancellous bone pinning are used cooperatively with cancellous bone locking nail hole, cortex bone pinning and cortex bone locking nail hole, pressurization locking nail hole cooperation
It uses, tail plug is used cooperatively with main nail tailing screw flight structure.
2. shin bone Medullary fixation device according to claim 1, it is characterised in that cancellous bone pinning is close to nut portion
Shallow thread design.
3. shin bone Medullary fixation device according to claim 1, it is characterised in that cancellous bone pinning is close to shank portion
Deep thread design.
4. shin bone Medullary fixation device according to claim 1, it is characterised in that cortex bone pinning designs for full thread.
5. shin bone Medullary fixation device according to claim 1 or 4, it is characterised in that cortex bone pinning sets for shallow thread
Meter.
6. shin bone Medullary fixation device according to claim 1, it is characterised in that tail plug is helicitic texture.
7. shin bone Medullary fixation device according to claim 1 or 6, it is characterised in that tail plug is interior hexagonal or interior hexagonal flower
Shape driving type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721738532.0U CN208710033U (en) | 2017-12-13 | 2017-12-13 | A kind of shin bone Medullary fixation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721738532.0U CN208710033U (en) | 2017-12-13 | 2017-12-13 | A kind of shin bone Medullary fixation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208710033U true CN208710033U (en) | 2019-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721738532.0U Active CN208710033U (en) | 2017-12-13 | 2017-12-13 | A kind of shin bone Medullary fixation device |
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| CN (1) | CN208710033U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022041736A1 (en) * | 2020-08-28 | 2022-03-03 | 陈聚伍 | Intramedullary fixation device for radial head fracture |
-
2017
- 2017-12-13 CN CN201721738532.0U patent/CN208710033U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022041736A1 (en) * | 2020-08-28 | 2022-03-03 | 陈聚伍 | Intramedullary fixation device for radial head fracture |
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