CN106901821A - A kind of patellar fracture internal fixation device - Google Patents
A kind of patellar fracture internal fixation device Download PDFInfo
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- CN106901821A CN106901821A CN201710110545.1A CN201710110545A CN106901821A CN 106901821 A CN106901821 A CN 106901821A CN 201710110545 A CN201710110545 A CN 201710110545A CN 106901821 A CN106901821 A CN 106901821A
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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
- A61B17/8004—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates with means for distracting or compressing the bone or bones
- A61B17/8009—Cortical plates, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates with means for distracting or compressing the bone or bones the plate having a ratchet
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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
- A61B17/8023—Variable length plates adjustable in both directions
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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
- 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
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Abstract
The present invention relates to a kind of patellar fracture internal fixation device, described fixator includes upper end fixing device, fixing lower, pressue device；Described upper end fixing device includes upper end fixed plate, upper end fixed claw, upper end raised plate；Described upper end fixed claw is connected to the side of upper end fixed plate；The outer surface of the upper end fixed plate is provided with upper end raised plate；Described fixing lower includes lower end fixed plate, lower end fixed claw, lower end raised plate；The outer surface of the lower end fixed plate is provided with lower end raised plate.Its advantage shows：The internal fixing device for patellar fracture is fixed after sclerite by upper end fixed claw and lower end fixed claw, can be by tightening middle pressurization screw rod, sclerite pressurization is gathered, fixing device is also distributed with multiple locking nail, according to fracture site and can need to fix broken bone piece using screw, so as to reach good fixed fracture effect.Can allow the patient early stage to carry out functional training, function of joint is obtained good recovery.
Description
Technical field
It is a kind of patellar fracture internal fixation device specifically the present invention relates to technical field of medical instruments.
Background technology
Patellar fracture is one of common fracture of knee, aggravation and the hair of communications and transportation with social population's aging
Exhibition, the incidence of patellar fracture substantially increases, and the form according to fracture line is divided into transecting type fracture, upper pole or lower pole fracture, powder
Broken fracture, stringer fissure fracture and osteochondral fracture, kneecap are the important components of Quadriceps mechanism, mean to stretch after its fracture
Knee device is subjected to serious infringement.Therefore most comminuted patellar need to consider operative treatment.Therapeutic purposes are weights
The continuity of Quadriceps mechanism is built, is recovered the smooth of facies articularis patellae and is reached the strong fixation for allowing early ambulant.
, it is necessary to tolerate the interior fixation of high-tension during patellar fracture operative treatment, in the prior art generally using multipurpose lock
Determine steel plate (X-shaped steel plate), patella claw, tension band wiring to carry out interior fixation.However, existing in actual use following
Not enough and defect.
Multipurpose locking steel plate (X-shaped steel plate) only has four screw holes, may be only available for kneecap body portion transverse fracture, it is impossible to
For the fracture of pole up and down of comminuted fracture and kneecap；
Patella claw is integral type overall structure, and size is fixed, though there are multiple models, because being often difficult in individual difference art
Select suitable model；Because patella claw is integral type structure, it is difficult to which the contraction simultaneously of adjusting size, claw and body portion often occurs hollow
Phenomenon, or even there is de- pawl phenomenon, so fixation sclerite is relatively difficult during operation, and without pressurization, to comminuted
Fracture fixation effect it is not strong.Need medical worker's free-hand fixation when patella claw is used, but this free-hand make patella claw and kneecap
The mode that bone is combined closely, due to strength very little, and can not carry out gradual pressurization so that patella claw can not be tight with kneecap
Close combination, and then there is the larger phenomenon in fracture gap, cause union required time more long, brought to patient's action life
Inconvenience.
Tension band wiring is most traditional method, but easily steel wire is slipped, and steel wire is difficult to tighten and cause Kirschner wire
Skid off, skin irritatin pain, easily under kneecap pole fracture and comminuted fracture fixed effect it is not good.Influence patient enter early stage
Row knee joint training.It is reported that during using patella fracture with tensile band wire, the case for having up to 47% can occur
Various complication, such as fixture stimulate skin and hypodermis, and Kirschner wire is loosened, is broken, displacement is even passed outside skin.
Chinese patent literature CN201020502998.2, applying date 2010.08.25, patent name is：One kind treats kneecap
The encircling fixator of fracture, discloses a kind of encircling fixator for treating patellar fracture, belongs to orthopedic medical device technical field,
Generation for avoiding multiple complications, makes fracture fixation reset accurate, firm, and its technical scheme is：It is by surrounded slice and side
Fork composition, surrounded slice is strip thin slice, and there are the radian matched with kneecap upper periphery or following peripheral, the both sides of surrounded slice in its axial direction
There are multiple sides to pitch, the direction of side fork there are multiple screws along the upper and lower surface of kneecap in the plate face of surrounded slice.It is this to encircle solid
Determining the advantage of guider is, can be using the patellar fracture of the interim fixed reset of fixator, if X-ray examination resets be discontented with art
Meaning, can further adjust until anatomical reduction；Screw is easy to accurately insert guide pin and screw is finally fixedly secured；Can use minimally invasive
Operation, it is small to soft tissue injury, be conducive to protection kneecap blood to transport, beneficial to union.But on one kind can adjusting size,
It is brought into close contact with kneecap, sclerite is gathered in gradual pressurization, and can fix the patellar fracture internal fixation device of broken bone piece then without corresponding
Disclosure.
In sum, need badly one kind can adjusting size, be brought into close contact with kneecap, sclerite is gathered in gradual pressurization, and
The patellar fracture internal fixation device of the broken bone piece of energy fixation, and yet there are no report on this bone fracture internal fixing device.
The content of the invention
The purpose of the present invention is directed to deficiency of the prior art, there is provided plant can adjusting size, be brought into close contact with kneecap,
Sclerite is gathered in gradual pressurization, and can fix the patellar fracture internal fixation device of broken bone piece.
To achieve the above object, the present invention is adopted the technical scheme that：
A kind of patellar fracture internal fixation device, described fixator includes upper end fixing device, fixing lower, pressurization dress
Put；Described upper end fixing device connects fixing lower by pressue device；Described upper end fixing device includes upper end
Fixed plate, upper end fixed claw, upper end raised plate；Described upper end fixed claw is connected to the side of upper end fixed plate, and upper end is fixed
Pawl is at least one；The outer surface of the upper end fixed plate is provided with upper end raised plate；Under described fixing lower includes
End fixed plate, lower end fixed claw, lower end raised plate；Described lower end fixed claw is connected to the side of lower end fixed plate, and lower end is solid
Pawl is determined at least one；The outer surface of the lower end fixed plate is provided with lower end raised plate；The pressue device is by pressurization screw rod
Constituted with slide bar, or pressue device is made up of two pressurization screw rods；Described upper end raised plate is with lower end raised plate by adding
Pressure screw rod and slide bar connection, or upper end raised plate are connected with lower end raised plate by two pressurization screw rods；Described upper end
Fixed plate and lower end fixed plate are provided with locking nail, and lock screw is assembled in locking nail.
As a kind of perferred technical scheme, the quantity of described upper end fixed claw is three.
As a kind of perferred technical scheme, the upper end fixed claw and upper end fixed plate are integrally formed.
As a kind of perferred technical scheme, the quantity of described lower end fixed claw is two.
As a kind of perferred technical scheme, described lower end fixed claw and lower end fixed plate are integrally formed.
As a kind of perferred technical scheme, described upper end fixing device, fixing lower, pressue device is using doctor
It is made of titanium or titanium alloy etc materials.
As a kind of perferred technical scheme, four locking nail, two locking nails are set in described upper end fixed plate
Hole communicates through upper end raised plate with the external world, and the pore size distribution of another two locking nail is on the both sides of upper end raised plate, upper end fixed plate
Four locking the T-shaped distributions of nail.
As a kind of perferred technical scheme, the locking nail in described lower end fixed plate is three, three locking nails
Hole is linearly distributed.
As a kind of perferred technical scheme, described upper end fixed plate and the inner surface of lower end fixed plate are arc knot
The outer surface plane structure type of structure, upper end fixed plate and lower end fixed plate.
As a kind of perferred technical scheme, described upper end fixed claw and lower end fixed claw is bow-shaped structural shape
Formula.
The invention has the advantages that：
1st, a kind of patellar fracture internal fixation device of the invention is applied to all kinds of patellar fractures especially comminuted patellar
Used during internal fixation operation.The internal fixing device for patellar fracture by upper end fixed claw and lower end fixed claw fix sclerite with
Afterwards, sclerite pressurization can be gathered by tightening middle pressurization screw rod, fixing device middle part is also distributed with multiple locks
Determine nail, according to fracture site and can need to fix broken bone piece using screw, so as to reach good fixed fracture effect.Can
To allow patient early stage to carry out functional training, function of joint is set to obtain good recovery；
2nd, upper end fixing device can be adjusted by the screw rod that pressurizes, and be conducive to the broken bone piece of comminuted patellar to consolidate
It is fixed；It is applied widely, can apply on different size of kneecap；Upper end fixed claw can as needed be adjusted and lower end is fixed
The position of pawl, it is ensured that upper end fixed claw and lower end fixed claw closely can be attached on kneecap, it is true to kneecap environmental protection polymerization effect
Cut；
3rd, three upper end fixed claws in the fixed plate of upper end can fix the upper pole bone piece of kneecap, under two of lower end fixed plate
End fixed claw can fix the lower pole bone piece of kneecap, be shifted again after preventing the reduction of the fracture；
4th, pressurization screw rod is provided with pressue device, pressurization screw rod is the structure type of screw thread, on the one hand progressive can be pressurizeed,
Be conducive to broken bone to engage, can preferably promote broken knitting to grow；On the other hand, the intensity of pressure is good, it is to avoid upper end occurs and fixes
Pawl and lower end fixed claw shift, come off, and cause to fix failure；
5th, be made of medical titanium or titanium alloy etc materials so that upper end fixed claw and lower end fixed claw can bending,
It is cheap and the cost of material is low using being somebody's turn to do；
6th, simple structure of the present invention, reasonable in design, easy to operate in art, can effectively fix broken bone piece, makes patient more early
Phase can just carry out effective functional training, and avoid in the displacement again for carrying out causing to fracture when feature is taken exercise, and occur different
The lower limb function of degree is disabled；
7th, it is adjusted using two pressurization screw rods in pressue device, on the one hand there is provided reliable plus-pressure, fix tightly
Lean on；Another side can carry out pressurization regulation to both sides, and can be finely adjusted, and advantageously be engaged in broken bone, can preferably promote
Broken knitting growth
8th, patellar fracture is one of common fracture of knee, aggravation and the hair of communications and transportation with social population's aging
Exhibition, the incidence of patellar fracture substantially increases, the patellar fracture hundreds thousand of examples of operation that China implements every year, therefore with wide
Potential applicability in clinical practice.Additionally, bone fracture internal fixing device price is higher, it may have good economic benefit.
Brief description of the drawings
Accompanying drawing 1 is a kind of patellar fracture internal fixation device structural representation of the invention.
Accompanying drawing 2 is a kind of each part mark structure schematic diagram of patellar fracture internal fixation device.
Accompanying drawing 3 is another patellar fracture internal fixation device structural representation of the invention.
Specific embodiment
The specific embodiment that the present invention is provided is elaborated below in conjunction with the accompanying drawings.
The reference and part being related in accompanying drawing are as follows：
1. the upper end fixed plate of upper end fixing device 11.
The upper end raised plate of 12. upper end fixed claw 13.
2. the lower end fixed plate of fixing lower 21.
The lower end raised plate of 22. lower end fixed claw 23.
3. pressue device 31. pressurization screw rod
32. slide bar 4. locks nail
Embodiment 1
Refer to Fig. 1 and Fig. 2, Fig. 1 is a kind of patellar fracture internal fixation device structural representation of the invention.Fig. 2 is one kind
Each part mark structure schematic diagram of patellar fracture internal fixation device, described fixator is fixed including upper end fixing device 1, lower end
Device 2, pressue device 3；Described upper end fixing device 1 connects fixing lower 2 by pressue device 3.
Described upper end fixing device 1 includes upper end fixed plate 11, upper end fixed claw 12, upper end raised plate 13；Described
Upper end fixed claw 12 is connected to the side of upper end fixed plate 11, and upper end fixed claw 12 is at least one, preferably upper end fixed claw
12 quantity is three；The upper end fixed claw 12 and upper end fixed plate 11 are integrally formed；The upper end fixed plate 11
Outer surface is provided with upper end raised plate 13.
Described fixing lower 2 includes lower end fixed plate 21, lower end fixed claw 22, lower end raised plate 23；Described
Lower end fixed claw 22 is connected to the side of lower end fixed plate 21, and lower end fixed claw 22 is at least one, preferably lower end fixed claw
22 quantity is two；Described lower end fixed claw 22 and lower end fixed plate 21 are integrally formed；The lower end fixed plate 21
Outer surface be provided with lower end raised plate 23.
The pressue device 3 is made up of pressurization screw rod 31 and slide bar 32；Described upper end raised plate 13 and lower end raised plate
23 by pressurizeing screw rod 31 and slide bar 32 is connected；Described upper end fixed plate 11 and lower end fixed plate 21 is provided with locking nail 4,
Lock screw is assembled in locking nail 4, locking nail 4 is the structure type of counterbore, and four are set preferably in upper end fixed plate 11
Locking nail 4, two locking nail 4 are communicated through upper end raised plate 13 with the external world, and it is convex that another two locking nail 4 is distributed in upper end
The both sides of plate 13 are played, four locking T-shaped distributions of nail 4 in upper end fixed plate 11；It is preferred that the locking in lower end fixed plate 21
Nail 4 is three, and three locking nail 4 are linearly distributed；Described upper end fixed plate 11 and the inner surface of lower end fixed plate 21
It is the outer surface plane structure type of arcuate structure, upper end fixed plate 11 and lower end fixed plate 21；Described upper end fixed claw 12
And lower end fixed claw 22 is bow-shaped structural form.
It should be noted that：
Described upper end fixed plate 11, upper end fixed claw 12 and upper end raised plate 13 form upper end fixing device 1, described
Lower end fixed plate 21, lower end fixed claw 22 and lower end raised plate 23 form fixing lower 2, upper end fixing device 1 is led to
Crossing pressurization screw rod 31 can be adjusted, this mainly effect with following several respects：
1. doctor can be adjusted between upper end fixing device 1 and fixing lower 2 with the actual conditions of broken bone piece in art
Relative position, is conducive to the fixation of the broken bone piece of comminuted patellar, and conventionally employed fixing device is integral type structure,
Can not be adjusted according to the actual conditions of broken bone piece, easily produce the displacement and articular surface out-of-flatness of broken bone piece, and use this
The fixing device of invention, can ensure that articular surface is smooth, and broken bone piece will not be shifted；
2. applied widely, can apply on different size of kneecap, and conventionally employed fixing device is integral type
Structure, size dimension is fixed, and model selection face is narrow, and accurate suitable dimension should be selected to different size of kneecap, and this is to manufacture
Business and using making troubles；
3. pair comminuted kneecap encircles that polymerization effect is good, the relative position of upper end fixing device 1 and fixing lower 2
Can adjust, i.e., can as needed adjust the position of upper end fixed claw 12 and lower end fixed claw 22, it is ensured that upper end fixed claw 12
Closely can be attached on kneecap with lower end fixed claw 22, it is definite to kneecap environmental protection polymerization effect.And conventionally employed fixed dress
Put, it is insecure when being fixed with, it may appear that hollow, influence fixed effect.
Described upper end fixed plate 11 and the inner surface of lower end fixed plate 21 are arcuate structure, are set according to kneecap anatomical shape
Meter is formed, and this fits with the outer surface of kneecap；Upper end fixed plate 11 and the equally distributed multiple locking nails of lower end fixed plate 21
Hole 4, according to fracture site and can need to be fixed using screw, meet the demand of different parts fracture fixation, can also reach
Good fixed fracture effect, locking nail 4 (sets four locks using the distribution form of the present embodiment i.e. in upper end fixed plate 11
Determine nail 4, two locking nail 4 are communicated through upper end raised plate 13 with the external world, and it is raised that another two locking nail 4 is distributed in upper end
The both sides of plate 13, four locking T-shaped distributions of nail 4 in upper end fixed plate 11；It is preferred that the locking nail in lower end fixed plate 21
Hole 4 is three, and three locking nail 4 are linearly distributed) fixed effect is optimal.
Three upper end fixed claws 12 in upper end fixed plate 11 can fix the upper pole bone piece of kneecap, the two of lower end fixed plate 21
Individual lower end fixed claw 22 can fix the lower pole bone piece of kneecap, be shifted again after preventing the reduction of the fracture.
Described pressue device 3 include pressurization screw rod 31 and slide bar 32, under use state, when upper end fixed claw 12 and under
After end fixed claw 22 fixes sclerite, by tightening pressurization screw rod 31, sclerite pressurization is gathered, pressurization screw rod 31 is screw thread
Structure type, on the one hand progressive can pressurize, be conducive to broken bone to engage, can preferably promote broken knitting to grow；The opposing party
Face, the intensity of pressure is good, it is to avoid upper end fixed claw 12 occur and lower end fixed claw 22 shifts, comes off, cause to fix failure.
Described upper end fixing device 1, fixing lower 2, pressue device 3 is using medical titanium or titanium alloy etc materials system
Into so that upper end fixed claw 12 and lower end fixed claw 22 can bending, and using should the cost of material is low, it is cheap, and pass
The fixing device of system is high using memorial alloy price, causes manufacturing cost and use cost to improve.
Embodiment 2
Fig. 3 is refer to, Fig. 3 is another patellar fracture internal fixation device structural representation of the invention.The present embodiment and reality
Apply example 1 essentially identical, its difference is, without slide bar 32 in pressue device 3 in the present embodiment, pressurize screw rod after its slide bar 32
31 replace, i.e., the pressue device 3 in the present embodiment is made up of two pressurization screw rods 31, using two pressurization spiral shells in pressue device 3
Bar 31 is adjusted, fixed on the one hand there is provided reliable plus-pressure；Another side can carry out pressurization regulation to both sides,
And can be finely adjusted, advantageously engaged in broken bone, can preferably promote broken knitting to grow.
A kind of patellar fracture internal fixation device of the invention has following technique effect:
A kind of patellar fracture internal fixation device of the invention is suitable in all kinds of patellar fractures especially comminuted patellar
Used during fixed operation.The internal fixing device for patellar fracture fixes sclerite by upper end fixed claw 12 and lower end fixed claw 22
After, sclerite pressurization can be gathered by tightening middle pressurization screw rod 31, fixing device middle part is also distributed with many
Individual locking nail 4, according to fracture site and can need to fix broken bone piece using screw, so as to reach good fixed fracture effect
Really.Can allow the patient early stage to carry out functional training, function of joint is obtained good recovery；Upper end fixing device 1 is by pressurization
Screw rod 31 can be adjusted, and be conducive to the fixation of the broken bone piece of comminuted patellar；It is applied widely, can apply different big
On small kneecap；The position of upper end fixed claw 12 and lower end fixed claw 22 can as needed be adjusted, it is ensured that upper end fixed claw 12
Closely can be attached on kneecap with lower end fixed claw 22, it is definite to kneecap environmental protection polymerization effect；In upper end fixed plate 11 three
Individual upper end fixed claw 12 can fix the upper pole bone piece of kneecap, and two lower end fixed claws 22 of lower end fixed plate 21 can fix kneecap
Lower pole bone piece, shifts again after preventing the reduction of the fracture；Pressurization screw rod 31 is provided with pressue device 3, pressurization screw rod 31 is the knot of screw thread
Configuration formula, on the one hand progressive can pressurize, and be conducive to broken bone to engage, and can preferably promote broken knitting to grow；On the other hand, press
Force intensity is good, it is to avoid upper end fixed claw 12 occur and lower end fixed claw 22 shifts, comes off, cause to fix failure；Using medical
Titanium or titanium alloy etc materials are made so that upper end fixed claw 12 and lower end fixed claw 22 can bending, and using the material into
This is low, cheap；Simple structure of the present invention, it is reasonable in design, it is easy to operate in art, broken bone piece can be effectively fixed, make patient
Relatively early stage can just carry out effective functional training, and avoid in the displacement again for carrying out causing to fracture when feature is taken exercise, and occur
Different degrees of lower limb function is disabled；It is adjusted using two pressurization screw rods 31 in pressue device 3, on the one hand there is provided reliability
Plus-pressure, it is fixed；Another side can carry out pressurization regulation to both sides, and can be finely adjusted, and advantageously be nibbled in broken bone
Close, can preferably promote broken knitting to grow；Patellar fracture is one of common fracture of knee, with social population's aging
Aggravation and the development of communications and transportation, the incidence of patellar fracture substantially increase, and the patellar fracture operation that China implements every year is tens of
Ten thousand, therefore with wide potential applicability in clinical practice.Additionally, bone fracture internal fixing device price is higher, it may have good economy
Benefit.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
Member, on the premise of the inventive method is not departed from, can also make some improvement and supplement, and these are improved and supplement also should be regarded as
Protection scope of the present invention.
Claims (10)
1. a kind of patellar fracture internal fixation device, it is characterised in that described fixator includes that upper end fixing device, lower end fix dress
Put, pressue device；Described upper end fixing device connects fixing lower by pressue device；Described upper end fixing device
Including upper end fixed plate, upper end fixed claw, upper end raised plate；Described upper end fixed claw is connected to the side of upper end fixed plate,
Upper end fixed claw is at least one；The outer surface of the upper end fixed plate is provided with upper end raised plate；Dress is fixed in described lower end
Put including lower end fixed plate, lower end fixed claw, lower end raised plate；Described lower end fixed claw is connected to the one of lower end fixed plate
Side, lower end fixed claw is at least one；The outer surface of the lower end fixed plate is provided with lower end raised plate；The pressue device by
Pressurization screw rod and slide bar are constituted, or pressue device is made up of two pressurization screw rods；Described upper end raised plate is raised with lower end
Plate is connected with lower end raised plate by screw rod and the slide bar connection of pressurizeing, or upper end raised plate by two pressurization screw rods；Institute
The upper end fixed plate and lower end fixed plate stated are provided with locking nail, and lock screw is assembled in locking nail.
2. patellar fracture internal fixation device according to claim 1, it is characterised in that the quantity of described upper end fixed claw is
Three.
3. patellar fracture internal fixation device according to claim 2, it is characterised in that the upper end fixed claw is fixed with upper end
Plate is integrally formed.
4. patellar fracture internal fixation device according to claim 1, it is characterised in that the quantity of described lower end fixed claw is
Two.
5. patellar fracture internal fixation device according to claim 4, it is characterised in that described lower end fixed claw is consolidated with lower end
Fixed board is integrally formed.
6. according to any described patellar fracture internal fixation devices of claim 1-5, it is characterised in that dress is fixed in described upper end
Put, fixing lower, pressue device are made of medical titanium or titanium alloy etc materials.
7. patellar fracture internal fixation device according to claim 1, it is characterised in that set four in described upper end fixed plate
Individual locking nail, two locking nail are communicated through upper end raised plate with the external world, and the pore size distribution of another two locking nail is raised in upper end
The both sides of plate, four locking T-shaped distributions of nail in the fixed plate of upper end.
8. patellar fracture internal fixation device according to claim 1, it is characterised in that the locking in described lower end fixed plate
Nail is three, and three locking nail are linearly distributed.
9. patellar fracture internal fixation device according to claim 1, it is characterised in that described upper end fixed plate and lower end are solid
The inner surface of fixed board is the outer surface plane structure type of arcuate structure, upper end fixed plate and lower end fixed plate.
10. patellar fracture internal fixation device according to claim 8 or claim 9, it is characterised in that described upper end fixed claw and
Lower end fixed claw is bow-shaped structural form.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710110545.1A CN106901821A (en) | 2017-02-28 | 2017-02-28 | A kind of patellar fracture internal fixation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710110545.1A CN106901821A (en) | 2017-02-28 | 2017-02-28 | A kind of patellar fracture internal fixation device |
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| CN106901821A true CN106901821A (en) | 2017-06-30 |
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| CN201710110545.1A Pending CN106901821A (en) | 2017-02-28 | 2017-02-28 | A kind of patellar fracture internal fixation device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108143476A (en) * | 2017-11-22 | 2018-06-12 | 朱新红 | A kind of fracture fixation device |
| CN109646102A (en) * | 2019-02-01 | 2019-04-19 | 刘勇 | A kind of buckle-type patella claw that band is self-locking |
| WO2019132828A3 (en) * | 2017-12-29 | 2019-08-15 | Dokuz Eylül Üni̇versi̇tesi̇ Rektörlüğü | Fracture plate used in transverse and segmental patella fractures |
| CN110464439A (en) * | 2019-08-23 | 2019-11-19 | 迪恩医疗科技有限公司 | Limbs fracture inner fixing device |
| CN111248990A (en) * | 2020-02-11 | 2020-06-09 | 吕家琦 | Proximal tibia end fixing device for knee joint replacement surgery |
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| CN108143476A (en) * | 2017-11-22 | 2018-06-12 | 朱新红 | A kind of fracture fixation device |
| WO2019132828A3 (en) * | 2017-12-29 | 2019-08-15 | Dokuz Eylül Üni̇versi̇tesi̇ Rektörlüğü | Fracture plate used in transverse and segmental patella fractures |
| CN109646102A (en) * | 2019-02-01 | 2019-04-19 | 刘勇 | A kind of buckle-type patella claw that band is self-locking |
| CN110464439A (en) * | 2019-08-23 | 2019-11-19 | 迪恩医疗科技有限公司 | Limbs fracture inner fixing device |
| CN110464439B (en) * | 2019-08-23 | 2023-12-22 | 迪恩医疗科技有限公司 | Internal fixing device for limb fracture |
| CN111248990A (en) * | 2020-02-11 | 2020-06-09 | 吕家琦 | Proximal tibia end fixing device for knee joint replacement surgery |
| CN111248990B (en) * | 2020-02-11 | 2022-08-05 | 云阳县江口镇中心卫生院(云阳县第二人民医院) | Proximal tibia end fixing device for knee joint replacement surgery |
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