CN108210045A - The mating tension band system of proximal femoral nail - Google Patents
The mating tension band system of proximal femoral nail Download PDFInfo
- Publication number
- CN108210045A CN108210045A CN201810000937.7A CN201810000937A CN108210045A CN 108210045 A CN108210045 A CN 108210045A CN 201810000937 A CN201810000937 A CN 201810000937A CN 108210045 A CN108210045 A CN 108210045A
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- tension band
- proximal
- collar
- intramedullary needle
- mating
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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
- A61B17/72—Intramedullary pins, nails or other devices
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Neurology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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- Surgical Instruments (AREA)
Abstract
The present invention provides a kind of mating tension band systems of proximal femoral nail, it is related to technical field of medical equipment, solves the technical issues of intramedullary needle stress concentrates easy fracture, the mating tension band system of the proximal femoral nail includes distal collar, proximal collar, tension band and lock, and proximal collar is removably arranged at the top of intramedullary needle；Distal collar is removably arranged on intramedullary needle lower part；Tension band is closed band loop, and tension band both ends are connect respectively with proximal collar and distal collar；Lock is connected on the tension band between distal collar and proximal collar.The present invention is by rebuilding the tension stress structure on the outside of intramedullary needle, the stress transfer that will focus on intramedullary needle concentrates on tension band system, and tension band system pulls making by multiply titanium, ability with larger resistance tension, so as to improve the intensity of intramedullary needle indirectly, the service life of intramedullary needle is extended, reduces fracture fixation failure risk.
Description
Technical field
The present invention relates to technical field of medical equipment, more particularly, to a kind of mating tension band system of proximal femoral nail
System.
Background technology
Fixation is chiefly used in long bone (such as stock, the upper arm, ruler, shin, radius) shaft fracture in intramedullary needle.Its advantage is：In marrow
Needle is more solid firm in itself, and the postoperative early ambulant for or without outer fixation, being conducive to hinder limb that can lack is taken exercise；Skin incision
Smaller, periosteum stripping is limited in scope, and damage is smaller；Intramedullary needle is long and has different shape corner angle, and embedded pulp cavity, it is firm to reach
Interior fixation, rotation, the generation of sidesway and angulation displacement can be avoided.
Applicants have discovered that at least there are following technical problems for the prior art：
The incomplete situation of cortex of bone on the outside for the treatment of fractured near end of thighbone, such as anti-intertrochanteric fracture, greater trochanter lateral wall
Comminuted fracture etc.；Near end of thighbone form is bent, and bending moment of face is larger, and the inside of bending is on the pressure side, the outside of bending is embodied
Tension in the case of cortex of bone is incomplete on the outside of the near end of thighbone, resists outside tension part material deficiency, tensile stress completely by
Inner matter intramedullary needle is resisted, and stress can be concentrated on around intramedullary needle nail hole, be easy to cause the fracture of intramedullary needle.
Invention content
The purpose of the present invention is to provide the mating tension band system of proximal femoral nail, to solve to exist in the prior art
Intramedullary needle stress easy fracture the technical issues of.
To achieve the above object, the present invention provides following technical schemes：
The mating tension band system of proximal femoral nail provided by the invention, including distal collar, proximal collar, tension band
And lock, wherein：
The proximal collar is removably arranged at the top of intramedullary needle；
The distal collar is removably arranged on intramedullary needle lower part；
The tension band be closed band loop, the tension band both ends respectively with the proximal collar and the distal collar
Connection；
The lock is connected on the tension band between the distal collar and the proximal collar.
The mentality of designing of the present apparatus is the tension stress structure rebuild on the outside of intramedullary needle, will focus on the stress transfer of intramedullary needle
Tension band system is concentrated on, and tension band system pulls making by multiply titanium, the ability with larger resistance tension, so as to indirectly
The intensity of intramedullary needle is improved, extends the service life of intramedullary needle, reduces fracture fixation failure risk.
As a further improvement on the present invention, the tension band include first while and when second, the lock and described the
It is all connected on one side with second side.
Lock for compressing or unclamping tension band, so as to adjustable first while and equalization of strain when second, with as far as possible
The tensile stress that intramedullary needle is subject to is transferred completely on tension band.
As a further improvement on the present invention, the tension band is made of titanium cable.The titanium cable is multiply hawser.
Since titanium material and biocompatibility are best, so be made of titanium cable, titanium cable is multiply hawser, tensile energy
It is good.
As a further improvement on the present invention, the distal collar includes distal end setting-up piece and is arranged on the distal end and consolidates
Determine the distal end fixing pipe on gasket, the distal end fixing pipe is curved arcuate structure, and the tension band is threaded through the distal end and fixes
In pipe, offer the opening passed through for pinning on the distal end setting-up piece, the distal end setting-up piece by the pinning with
Intramedullary needle connects.
Distal end fixing pipe is arranged in parallel on the setting-up piece of distal end, and fixing pipe two port positions in distal end are proximally facing
Lantern ring direction set so that tension band it is smooth pass through distal end fixing pipe after, the both ends of tension band will not form dead angle bending.
As a further improvement on the present invention, the distal end fixing pipe is semi-circular shape structure.
Facilitate the arc oversteering of tension band by semi-circular shape distal end fixing pipe, bending dead angle will not be formed.
As a further improvement on the present invention, the proximal collar includes proximal end setting-up piece and is arranged on the proximal end and consolidates
Determine the proximal end fixing pipe on gasket, the proximal end fixing pipe is curved arcuate structure, and the tension band is threaded through the proximal end and fixes
In pipe, offer the opening passed through for tail cap on the proximal end setting-up piece, the proximal end setting-up piece by the tail cap with
Intramedullary needle connects.
Tail cap is detachably arranged at the top of intramedullary needle, and tail cap diameter is less than intramedullary needle top diameter, and proximal end setting-up piece is worn
It after crossing tail cap, is connected at the top of intramedullary needle by tail cap, and tail cap has tailstock, tailstock diameter is more than tail cap diameter, so as to logical
It crosses at the top of tailstock and intramedullary needle and fixes proximal end setting-up piece, proximal end fixing pipe is arc so that tension band is smooth to pass through proximal end
Fixing pipe.
As a further improvement on the present invention, the proximal end fixing pipe is semi-circular shape structure.
As a further improvement on the present invention, the lock includes housing, fixing groove and housing pin, during the housing is
Hollow structure, the fixing groove are arranged in the housing, and the tension band is laid in the fixing groove, and the case top is set
Tapped through hole is equipped with, the housing pin is screwed on the tapped through hole, and the housing pin end and the tension band
Be accessibly connected, the quantity of the fixing groove and the housing pin is two, described first while and it is described second while distinguish
It is laid in two fixing grooves, two housing pins correspond two fixing groove settings.
Lock is for locking tension band or being unclamped, since tension band is closed loop configuration, including the first side and second
Side, thus lock respectively to first while and second while locked or unclamped, when needing to carry out tension locking, precession compresses
Screw, housing pin are gradually deep into housing by tapped through hole, most at last tension band compress, when need unclamp tension band
When, it is only necessary to housing pin is reversely rotated, housing pin end is made to be detached from locked position, so as to carry out the both sides tune of tension band
It is whole, so that balancing tension.
As a further improvement on the present invention, the fixed well width is more than the tension band diameter, two compressions
Screw shifts to install.
As a further improvement on the present invention, the distal collar, the proximal collar, the lock use titanium system
Into.
Beneficial effects of the present invention are：The mentality of designing of the present apparatus is the tension stress structure rebuild on the outside of intramedullary needle, will be collected
In in the stress transfer of intramedullary needle concentrate on tension band system, and tension band system pulls making by multiply titanium, has larger support
The ability of tension stress so as to improve the intensity of intramedullary needle indirectly, extends the service life of intramedullary needle, reduces fracture fixation
Failure risk, the present apparatus also have the characteristics that simple in structure, easy to operate, of low cost.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structure diagram of the mating tension band system of proximal femoral nail of the present invention；
Fig. 2 is the explosive view of distal collar in the mating tension band system of proximal femoral nail of the present invention；
Fig. 3 is structure diagram when distal collar connects in the mating tension band system of proximal femoral nail of the present invention；
Fig. 4 is the explosive view of proximal collar in the mating tension band system of proximal femoral nail of the present invention；
Structural representation when Fig. 5 is middle proximal collar connection in the mating tension band system of proximal femoral nail of the present invention
Figure；
Fig. 6 is the dimensional structure diagram latched in the mating tension band system of proximal femoral nail of the present invention；
Fig. 7 is the vertical view latched in the mating tension band system of proximal femoral nail of the present invention；
Fig. 8 is the vertical view of proximal collar in the mating tension band system of proximal femoral nail of the present invention.
1, distal collar in figure；11st, distal end setting-up piece；12nd, distal end fixing pipe；2nd, proximal collar；21st, pad is fixed in proximal end
Piece；22nd, proximal end fixing pipe；3rd, tension band；31st, the first side；32nd, the second side；4th, it latches；41st, housing；42nd, fixing groove；43rd, it presses
Tight screw；100th, intramedullary needle；200th, pinning；300th, tail cap；400th, tailstock.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical scheme of the present invention will be carried out below
Detailed description.Obviously, described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all under the premise of creative work is not made
Other embodiment belongs to the range that the present invention is protected.
As shown in Figure 1, the present invention provides a kind of mating tension band system of proximal femoral nail, including distal collar 1,
Proximal collar 2, tension band 3 and lock 4, proximal collar 2 are removably arranged on 100 top of intramedullary needle；Distal collar 1 is detachable
Be arranged on 100 lower part of intramedullary needle；Tension band 3 is closed band loop, and 3 both ends of tension band cover respectively with proximal collar 2 and distal end
Ring 1 connects；Lock 4 is connected on the tension band 3 between distal collar 1 and proximal collar 2.Intramedullary needle 100 is connected to bone
In marrow, this tension band system is to rebuild the tension stress structure in 100 outside of intramedullary needle, will focus on the stress transfer of intramedullary needle 100
Tension band system is concentrated on, and tension band system pulls making by multiply titanium, the ability with larger resistance tension, so as to indirectly
The intensity of intramedullary needle 100 is improved, extends the service life of intramedullary needle 100, reduces fracture fixation failure risk.
As shown in Fig. 2, tension band 3 is included first at 31 and second 32, lock 4 32 connects with first at 31 and second
It connects.Lock 4 for compressing or unclamp tension band 3, so as to adjustable first at 31 and second 32 equalization of strain, with as far as possible
The tensile stress for being subject to intramedullary needle 100 be transferred completely on tension band 3.By adjusting the pine of lock 4 with can tightly put down during use
Weigh first at 31 and second 32 stressing conditions, to ensure the balance and stability of tension band system.
As shown in figure 3, in order to ensure the intensity of tension band 3 and bio-compatible performance, tension band 3 is made of titanium cable,
Especially, titanium cable is multiply hawser.Since titanium material and biocompatibility are best, so being made of titanium cable, titanium cable is multiply
Hawser, tensile energy are good.
As Figure 2-3, distal collar 1 includes distal end setting-up piece 11 and the distal end being arranged on distal end setting-up piece 11
Fixing pipe 12, distal end fixing pipe 12 are curved arcuate structure, and tension band 3 is threaded through in distal end fixing pipe 12, distal end setting-up piece 11
On offer the opening passed through for pinning 200, distal end setting-up piece 11 is connect by pinning 200 with intramedullary needle 100.Distal end is fixed
Pipe 12 is arranged in parallel on distal end setting-up piece 11, and proximally facing 2 direction of lantern ring of 12 two port positions of distal end fixing pipe
Setting so that tension band 3 it is smooth pass through distal end fixing pipe 12 after, the both ends of tension band 3 will not form dead angle bending.
Preferably, distal end fixing pipe 12 is semi-circular shape structure.Tension band 3 is facilitated by semi-circular shape distal end fixing pipe 12
Arc oversteering, bending dead angle will not be formed.
As illustrated in figures 4-5, proximal collar 2 includes proximal end setting-up piece 21 and the proximal end being arranged on proximal end setting-up piece 21
Fixing pipe 22, proximal end fixing pipe 22 are curved arcuate structure, and tension band 3 is threaded through in proximal end fixing pipe 22, proximal end setting-up piece 21
On offer the opening passed through for tail cap 300, proximal end setting-up piece 21 is connect by tail cap 300 with intramedullary needle 100.Tail cap 300
100 top of intramedullary needle is detachably arranged at, 300 diameter of tail cap is less than 100 top diameter of intramedullary needle, and proximal end setting-up piece 21 passes through
After tail cap 300,100 top of intramedullary needle is connected to, and tail cap 300 has tailstock 400 by tail cap 300,400 diameter of tailstock is more than
300 diameter of tail cap, so as to be fixed proximal end setting-up piece 21 by tailstock 400 and 100 top of intramedullary needle, proximal end fixing pipe 22 is
Arc so that tension band 3 is smooth to pass through proximal end fixing pipe 22.
As shown in Figure 8, it is preferred that proximal end fixing pipe 22 is semi-circular shape structure.
As shown in fig. 6-7, lock 4 includes housing 41, fixing groove 42 and housing pin 43, and housing 41 is hollow structure, Gu
Determine slot 42 to be arranged in housing 41, tension band 3 is laid in fixing groove 42, and 41 top of housing is provided with tapped through hole, compresses spiral shell
Silk 43 is screwed on tapped through hole, and 43 end of housing pin is accessibly connected with tension band 3, fixing groove 42 and housing pin 43
Quantity be two, first 32 is laid in two fixing grooves 42 respectively at 31 and second, and two housing pins 43 are one by one
Corresponding two fixing grooves 42 are set.Lock 4 is for being locked or being unclamped to tension band 3, since tension band 3 is closed loop configuration,
Including first at 31 and second 32, so lock 4 32 is locked or unclamped at 31 and second to first respectively, work as needs
When carrying out the locking of tension band 3, precession housing pin 43, housing pin 43 is gradually deep by tapped through hole in housing 41, most
Tension band 3 compresses at last, when needing to unclamp tension band 3, it is only necessary to reversely rotate housing pin 43, make 43 end of housing pin
Locked position is detached from, so as to carry out the both sides force bearing adjustment of tension band 3, so that balancing tension.
Preferably, 42 width of fixing groove is more than 3 diameter of tension band so that tension band 3 can be along 42 length direction of fixing groove
Mobile, two housing pins 43 shift to install, and can save 4 volumes of lock, reduce cost of investment, and avoid two compression spiral shells
Interference between silk 43.
As optional embodiment, distal collar 1, proximal collar 2, lock 4 are made of titanium.
The above description is merely a specific embodiment, but protection scope of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can readily occur in change or replacement, should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of mating tension band system of proximal femoral nail, it is characterised in that：Including distal collar (1), proximal collar
(2), tension band (3) and lock (4), wherein：
The proximal collar (2) is removably arranged at the top of intramedullary needle (100)；
The distal collar (1) is removably arranged on intramedullary needle (100) lower part；
The tension band (3) be closed band loop, tension band (3) both ends respectively with the proximal collar (2) and it is described far
End cap ring (1) connects；
The lock (4) is connected to the tension band (3) between the distal collar (1) and the proximal collar (2)
On.
2. the mating tension band system of proximal femoral nail according to claim 1, it is characterised in that：The tension band
(3) including first at (31) and second (32), it is described lock (4) with described first while (31) and it is described second while (32) connect
It connects.
3. the mating tension band system of proximal femoral nail according to claim 2, it is characterised in that：The tension band
(3) it is made of titanium cable.
4. the mating tension band system of proximal femoral nail according to claim 1, it is characterised in that：The distal collar
(1) it is described remote including distal end setting-up piece (11) and the distal end fixing pipe (12) being arranged on the distal end setting-up piece (11)
It is curved arcuate structure to hold fixing pipe (12), and the tension band (3) is threaded through in the distal end fixing pipe (12), and the distal end is fixed
Offer the opening passed through for pinning (200) on gasket (11), the distal end setting-up piece (11) by the pinning (200) with
Intramedullary needle (100) connects.
5. the mating tension band system of proximal femoral nail according to claim 4, it is characterised in that：The distal end is fixed
It is semi-circular shape structure to manage (12).
6. the mating tension band system of proximal femoral nail according to claim 1, it is characterised in that：The proximal collar
(2) it is described near including proximal end setting-up piece (21) and the proximal end fixing pipe (22) being arranged on the proximal end setting-up piece (21)
It is curved arcuate structure to hold fixing pipe (22), and the tension band (3) is threaded through in the proximal end fixing pipe (22), and the proximal end is fixed
Offer the opening passed through for tail cap (300) on gasket (21), the proximal end setting-up piece (21) by the tail cap (300) with
Intramedullary needle (100) connects.
7. the mating tension band system of proximal femoral nail according to claim 6, it is characterised in that：The proximal end is fixed
It is semi-circular shape structure to manage (22).
8. the mating tension band system of proximal femoral nail according to claim 2, it is characterised in that：The lock (4)
Including housing (41), fixing groove (42) and housing pin (43), the housing (41) is hollow structure, and the fixing groove (42) sets
It puts in the housing (41), the tension band (3) is laid in the fixing groove (42), is provided at the top of the housing (41)
Tapped through hole, the housing pin (43) are screwed on the tapped through hole, and the housing pin (43) end and described
Power band (3) is accessibly connected, and the quantity of the fixing groove (42) and the housing pin (43) is two, first side
(31) it is laid on respectively in two fixing grooves (42) with second side (32), two housing pins (43) one are a pair of
Answer two fixing groove (42) settings.
9. the mating tension band system of proximal femoral nail according to claim 8, it is characterised in that：The fixing groove
(42) width is more than the tension band (3) diameter, and two housing pins (43) shift to install.
10. the mating tension band system of proximal femoral nail according to claim 1, it is characterised in that：The distal end set
Ring (1), the proximal collar (2), the lock (4) are made of titanium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810000937.7A CN108210045B (en) | 2018-01-03 | 2018-01-03 | Proximal femur intramedullary pin matched tension belt system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810000937.7A CN108210045B (en) | 2018-01-03 | 2018-01-03 | Proximal femur intramedullary pin matched tension belt system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108210045A true CN108210045A (en) | 2018-06-29 |
| CN108210045B CN108210045B (en) | 2020-12-08 |
Family
ID=62642650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810000937.7A Active CN108210045B (en) | 2018-01-03 | 2018-01-03 | Proximal femur intramedullary pin matched tension belt system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108210045B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1272116B1 (en) * | 2000-04-10 | 2004-09-29 | SYNTHES AG Chur | Osteosynthetic anchoring element |
| CN2857861Y (en) * | 2005-11-11 | 2007-01-17 | 杜学平 | Steel wire tension belt with lock |
| CN201719364U (en) * | 2010-06-10 | 2011-01-26 | 贾斌 | Greater trochanter fixed-type femoral nail |
| CN201743760U (en) * | 2010-08-31 | 2011-02-16 | 中国人民解放军第二军医大学 | Belt type absorbable fracture fixation strap |
| FR2965712B1 (en) * | 2010-10-12 | 2012-11-09 | Cie Financiere Et Medicale | EQUIPMENT FOR REPAIRING A FRACTURED SHOULDER JOINT |
| CN106073877A (en) * | 2016-07-14 | 2016-11-09 | 闻泰医疗科技（上海）有限公司 | A kind of near end of thighbone Medullary fixation device |
| CN106264828A (en) * | 2016-08-29 | 2017-01-04 | 河北医科大学第三医院 | A kind of suitable type noinvasive bone distraction device |
-
2018
- 2018-01-03 CN CN201810000937.7A patent/CN108210045B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1272116B1 (en) * | 2000-04-10 | 2004-09-29 | SYNTHES AG Chur | Osteosynthetic anchoring element |
| CN2857861Y (en) * | 2005-11-11 | 2007-01-17 | 杜学平 | Steel wire tension belt with lock |
| CN201719364U (en) * | 2010-06-10 | 2011-01-26 | 贾斌 | Greater trochanter fixed-type femoral nail |
| CN201743760U (en) * | 2010-08-31 | 2011-02-16 | 中国人民解放军第二军医大学 | Belt type absorbable fracture fixation strap |
| FR2965712B1 (en) * | 2010-10-12 | 2012-11-09 | Cie Financiere Et Medicale | EQUIPMENT FOR REPAIRING A FRACTURED SHOULDER JOINT |
| CN106073877A (en) * | 2016-07-14 | 2016-11-09 | 闻泰医疗科技（上海）有限公司 | A kind of near end of thighbone Medullary fixation device |
| CN106264828A (en) * | 2016-08-29 | 2017-01-04 | 河北医科大学第三医院 | A kind of suitable type noinvasive bone distraction device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108210045B (en) | 2020-12-08 |
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