CN108703797A - Draw point is fixed in a kind of novel orthopaedics - Google Patents
Draw point is fixed in a kind of novel orthopaedics Download PDFInfo
- Publication number
- CN108703797A CN108703797A CN201810790177.4A CN201810790177A CN108703797A CN 108703797 A CN108703797 A CN 108703797A CN 201810790177 A CN201810790177 A CN 201810790177A CN 108703797 A CN108703797 A CN 108703797A
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- China
- Prior art keywords
- draw point
- needle
- point
- backshank
- needle body
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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
- A61B17/683—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin comprising bone transfixation elements, e.g. bolt with a distal cooperating element such as a nut
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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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)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses draw point is fixed in a kind of novel orthopaedics, it includes draw point and lock hole, and one end of the draw point is needle point, the other end is backshank, the needle point and backshank coaxial line are provided with lock hole in the middle part of the draw point, and center axis rotation 360 ° of the lock hole by backshank along draw point forms.The present invention is to fix draw point in a kind of novel orthopaedics, has many advantages, such as effectively to prevent the withdraw of the needle, provides anti-rotation, draw point is avoided when bending to loosen, reducing soft tissue excitation, is anti-broken needle, simple, convenient, economical and practical.
Description
Technical field
The present invention relates to fix draw point in medical instruments field more particularly to a kind of novel orthopaedics.
Background technology
Fracture is that the continuity of bone structure is broken completely or partially.Be more common in children and the elderly, young people also when
There is generation.Patient is often-a position fracture, and minority is multiple fracture.Through appropriate processing in time, most patients can restore former
The function of coming, a few patients can leave different degrees of sequelae.
It fractures caused by various wounds very common in daily life, some fracture need operative treatment, medical section
The personnel of grinding have developed a variety of inside and outside fixation devices.It is solid in some special fractures, such as patellar fracture, olecranal fracture
Determine in operative treatment, using tension band principle, becomes most classical modus operandi due to its unique mechanical advantage.But it is lacked
Point, which is the conventional draw point that the operation uses, the withdraw of the needle, fixation failure, the defect that can not provide axial forces, often leads to perform the operation
Failure or complication.
The present invention is directed to the deficiency of traditional draw point, devises simple, convenient, cheap special tectonic draw point (or titanium alloy
Needle etc.), the deficiencies of can having the advantage of former classical operation completely, while avoid the withdraw of the needle, provide stronger reliable interior fixed
Mechanical requirements can carry out safe reconditioning in early days, accelerate rehabilitation.It is fixed in fracture operation in non-simple draw point, it is special
Design structure have the shortcomings that fracture that backshank is convenient, prevents draw point from rotating repeatedly causes hold to decline.And the invention can be with
Band, the fixed fracture of draw point can be used for nearly all.
Invention content
The purpose of the present invention is to solve the shortcomings of the prior art and provide and fix draw point in a kind of novel orthopaedics, there is energy
It is effective to prevent the withdraw of the needle, anti-rotation is provided, draw point when bending is avoided to loosen, reduce soft tissue excitation, anti-broken needle, simple, convenient, warp
The advantages that Ji material benefit.
In order to achieve the above objectives, the present invention is achieved through the following technical solutions.
Draw point is fixed in a kind of novel orthopaedics, it includes needle body and lock hole, and one end of the needle body is needle point, the other end
For backshank, the needle point and backshank coaxial line are provided with lock hole in the middle part of the needle body, and the lock hole is by backshank along needle body
360 ° of center axis rotation form.
Further, the cross section of the draw point is circle.
Further, arbitrary in a diameter of 1.0mm, 1.5mm, 1.8mm, 2.0mm, 2.5mm, 3.0mm of the draw point
It is a kind of.
Further, the material of the draw point is medical stainless steel or titanium alloy material.
Further, needle point and backshank coaxial line.
Further, the draw point is tied up with steel wire 8 word tension bands of progress.
Draw point is fixed in a kind of novel orthopaedics of the present invention, the withdraw of the needle can effectively be prevented, provide anti-rotation, avoid bending by having
Shi Gangzhen loosens, reduce soft tissue excitation, anti-broken needle, it is simple, convenient, economical and practical the advantages that.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the structural schematic diagram of the amplification of A in Fig. 1 of the present invention；
Fig. 3 is the schematic diagram of the present invention and conventional draw point comparison；
Fig. 4 uses procedure structure schematic diagram for the present invention's；
In figure：1, needle body；2, steel wire；11, needle point；12, lock hole；13, backshank.
Specific implementation mode
With reference to embodiment, the present invention will be further described, but is not limited to the content on specification.
As shown in the figure：Draw point (abbreviation Liu Shi needles) is fixed in a kind of novel orthopaedics, it includes needle body 1 and lock hole 12, needle
One end of body 1 is needle point 11, and the other end is backshank 13, and the middle part of needle body 1 is provided with lock hole 12, and lock hole 12 is by 13 edge of backshank
360 ° of the center axis rotation of needle body 1 forms, needle point 11 and 13 coaxial line of backshank.
In tension band fixation art, the steel wire 2 for forming tension band passes through in annular cavernous structure (lock hole 12), by needle
Body 1 forms a special systems stabilisation with steel wire 2, and when needle body 1 has retrogressing to be inclined to, steel wire 2 can provide enough holds
It prevents needle body 1 from retreating, while the steel wire 2 of distal end is further tightened, further prevents draw point to retreat rear tip steel wire and slip, play
The effect of " interlocking ", and can fight and generate powerful axial force in quadriceps muscle of thigh contraction, it prevents fracture from detaching, forms knee joint
It bends, stretch and there is complete mechanics to protect.
The needle body 1 is provided maximum cross sectional moment of inertia with columned structure, is obtained using the cylinder material of mono-disperse
Strongest bending resistance strength, uniform cross-sectional area are designed to eliminate stress concentration so that and fixing device is more stable and strong,
Surgical procedure and it is postoperative it is strong securely, avoid fractureing.Middle part bending forms lock hole, reserves the needle of suitable length during surgery
The anti-rotation empennage of tail (about 0.5cm-1cm) formation plays the role of anti-rotation after squeezing into sclerotin, more completely reaches intra-articular fracture without micro-
It moves, pressurize, the settled principle of absolute stability.So that patient is more easy to carry out the reconditioning of safety early stage, accelerate rehabilitation.Especially exist
In the weak senile fracture of osteoporosis, sclerotin hold, it can more solve the problems, such as that intractable inner fixing device loosens.Anti- rotation empennage
It is mellow and full smooth, soft tissue excitation can be reduced to greatest extent, avoid tradition must not cause because of Internal fixation pin excitation it is not all right
The deficiency of interior fixed removal surgery.
In the fixed fracture operation of simple draw point of non-tension band, it is exposed to generally require backshank, after reserving appropriate length,
It is cut in the suitable position of lock hole cyclic structure, backshank forms Anti-scratching empennage, reaches the form after conventional draw point bending,
The step of eliminating the violence bending being often difficult to realize, without carrying out bending repeatedly, moulding caused draw point loosens.
Diagram 2：The comparison of this draw point (left side) and traditional draw point (right side).
The cores surgical procedures such as reset, fixation, bending, tension band are identical as traditional operation theory, method, do not increase operation
Difficulty and time.Unique be not all traditional wire binding is that steel wire passes through behind draw point, which then passes through intermediate ring
Shape lock hole.
In actual use, steel wire 2 passes through the lock hole 12 of needle body 1, carries out conventional 8 word tension bands and ties up, such as Fig. 3 institutes
Show.
1 material of needle body：Stainless steel (such as 304 stainless steels) the steel needle or titanium alloy metal of medical human implantation material standard
Needle.
Needle body 1 makes：The production of hand-made or mass standard.
1 diameter of needle body：Conventional 1.0mm, 1.5mm, 1.8mm, 2.0mm, 2.5mm, 3.0mm and other necessary arbitrary straight
Diameter.
The present invention is directed to the deficiency of traditional draw point, devises simple, convenient, cheap special tectonic draw point (or titanium alloy
Needle etc.), the deficiencies of can having the advantage of former classical operation completely, while avoid the withdraw of the needle, provide stronger reliable interior fixed
Mechanical requirements can carry out safe reconditioning in early days, accelerate rehabilitation, while also reducing the soft tissue excitation of backshank.
In the fixed fracture operation of simple draw point, backshank (Anti-scratching empennage) is convenient, prevents draw point with making for special design structure
The shortcomings of rotation causes hold to decline repeatedly.And the invention can be used for it is nearly all can use band, draw point it is fixed
In illness of fracturing.
The present invention solves the withdraw of the needle, fixation failure, the defect that can not provide axial forces after traditional draw point operation.It solves
The technical essential of the problem is that suitable position is provided with the poroid lock hole of annular in the middle part of draw point, in art can by lock hole with
Needles combined with tension band forms " interlocking " function and reaches the above effect, and thus also provides axial protection, backshank bending again
180 °, the extra backshank of cutting, the anti-rotation empennage of formation have the function of that good anti-rotation can further provide for avoiding fine motion, carry
For more preferable stability.It is fixed in fracture in simple draw point, indwelling is cut in extracutaneous draw point by half ring region of lock hole, natural shape
At Anti-scratching empennage, can it is difficult to avoid conventional draw point bending, fracture caused by bending and draw point loosen repeatedly.The draw point uses
The cylinder material of mono-disperse provides maximum cross sectional moment of inertia with columned structure, obtains strongest bending resistance strength, uniform
Cross-sectional area to eliminate stress concentration so that fixing device is more stable and strong, in surgical procedure and postoperative strong jail
Gu, avoid fractureing.After fixation, needle point is cut off, cut off position finishing it is round and smooth, avoid stabbing, which can be hand-made, also may be used
It is produced, is had many advantages, such as simple, convenient, economical and practical with batch standard.
Obviously, the above embodiment of the invention be only to clearly illustrate example of the present invention, and not be
Restriction to embodiments of the present invention.For those of ordinary skill in the art, on the basis of the above description also
It can make other variations or changes in different ways.Here all embodiments can not be exhaustive.It is every to belong to this
Row of the obvious changes or variations that the technical solution of invention is extended out still in protection scope of the present invention.
Claims (5)
1. fixing draw point in a kind of novel orthopaedics, it is characterised in that：It includes needle body (1) and lock hole (12), the needle body (1)
One end be needle point (11), the other end is backshank (13), the needle point (11) and backshank (13) coaxial line, the needle body (1)
Middle part is provided with lock hole (12), and center axis rotation 360 ° of the lock hole (12) by backshank (13) along needle body (1) forms.
2. fixing draw point in a kind of novel orthopaedics according to claim 1, it is characterised in that：The needle body (1) it is transversal
Face is circle.
3. fixing draw point in a kind of novel orthopaedics according to claim 1, it is characterised in that：The diameter of the needle body (1)
For any one in 1.0mm, 1.5mm, 1.8mm, 2.0mm, 2.5mm, 3.0mm.
4. fixing draw point in a kind of novel orthopaedics according to claim 1, it is characterised in that：The material of the needle body (1)
For medical stainless steel or titanium alloy.
5. fixing draw point in a kind of novel orthopaedics according to claim 1, it is characterised in that：The needle body (1) and steel wire
8 word tension bands are carried out to tie up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810790177.4A CN108703797B (en) | 2018-07-18 | 2018-07-18 | Orthopedics internal fixation steel needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810790177.4A CN108703797B (en) | 2018-07-18 | 2018-07-18 | Orthopedics internal fixation steel needle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108703797A true CN108703797A (en) | 2018-10-26 |
| CN108703797B CN108703797B (en) | 2023-09-08 |
Family
ID=63874117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810790177.4A Active CN108703797B (en) | 2018-07-18 | 2018-07-18 | Orthopedics internal fixation steel needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108703797B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114533233A (en) * | 2022-02-24 | 2022-05-27 | 盛晓磊 | Kirschner wire for patellar fracture and using method thereof |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108703797B (en) | 2023-09-08 |
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