CN207477587U - Shape memory fracture fixing apparatus - Google Patents
Shape memory fracture fixing apparatus Download PDFInfo
- Publication number
- CN207477587U CN207477587U CN201720364842.4U CN201720364842U CN207477587U CN 207477587 U CN207477587 U CN 207477587U CN 201720364842 U CN201720364842 U CN 201720364842U CN 207477587 U CN207477587 U CN 207477587U
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- CN
- China
- Prior art keywords
- type
- shape memory
- fracture
- fixing apparatus
- connection structure
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000000956 alloy Substances 0.000 claims abstract description 4
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims abstract description 4
- 208000010392 Bone Fractures Diseases 0.000 abstract description 26
- 206010017076 Fracture Diseases 0.000 abstract description 26
- 210000000988 bone and bone Anatomy 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 7
- 230000006870 function Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000035876 healing Effects 0.000 abstract description 4
- 239000005457 ice water Substances 0.000 abstract description 4
- 230000002411 adverse Effects 0.000 abstract description 3
- 238000000465 moulding Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 230000007704 transition Effects 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 230000009467 reduction Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- HZEWFHLRYVTOIW-UHFFFAOYSA-N [Ti].[Ni] Chemical compound [Ti].[Ni] HZEWFHLRYVTOIW-UHFFFAOYSA-N 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910001000 nickel titanium Inorganic materials 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
The utility model is related to shape memory fracture fixing apparatus, belong to the field of medical instrument technology；It is made by shape memory alloy material, the connection structure including two completely identical in structure retainer bodies and centre；Set that there are four encircle arm type structure with its integrated molding in wherein described retainer body.For the connection structure using being preceding of a straight line type, use state is in " W " type.In use, can by connection structure from initial linear type into " W " type transition process, tense the retainer body structure at left and right sides of it and drawn close to centre, so as to generate longitudinal pressing function, ensure combining closely for bone stump, be conducive to fracture healing.After union, fixator can be taken out by way of adding in ice water in fixed position, hole will not be remained after taking-up on bone tissue, will not be had an adverse effect to its bearing capacity.
Description
Technical field
The utility model is related to shape memory fracture fixing apparatus, belong to the field of medical instrument technology.
Background technology
In today's society, fracture has become a kind of very common disease.Clinical treatment fracture has three big principles：It is multiple
Position, fixed and functional training.The reduction of the fracture is the first step for the treatment of fracture, after the reduction of the fracture, because its is unstable, is easily sent out
Life is shifted, therefore to be fixed on satisfied position using different methods again, it is made gradually to heal.It is suitable effective solid
It is fixed, it is the key that one of union.It can continue to the contraposition after the reduction of the fracture to line, and can prevent from being unfavorable for fracturing
The shearing rotary force of healing and the activity of angulation.Common fixing means has two classes, after the reduction of the fracture, for hindering limb external stability
It is outer fixation, there is plintlet, plaster bandage, continuous traction etc..After the reduction of the fracture, for hinder inside limb be fixed as it is interior solid
It is fixed, have screw, steel plate, draw point, Smith-Petersen nail, intramedullary needle etc., these methods of internal fixation there is many shortcomings, for example,
When using the fixed form of steel plate+steel nail, it need to drill in normal bone tissues, so as to cause the secondary damage of bone tissue.This
Outside, after union, steel plate and steel nail need to be taken out, steel nail can remain hole after taking out on bone tissue, reduce bone tissue
Bearing capacity, easily cause secondary fracture here.At present, although clinically also encircling arm-type fracture fixing apparatus, it is only
With grasping effect, without longitudinal pressing function, it is impossible to ensure combining closely for bone stump, be unfavorable for union.
Utility model content
The purpose of this utility model is that it is in view of the drawbacks of the prior art and insufficient, a kind of simple in structure, design conjunction is provided
Reason, shape memory fracture fixing apparatus easy to use.
To achieve the above object, the technical solution adopted in the utility model is：It by shape memory alloy material make and
Into the connection structure including two completely identical in structure retainer bodies and centre；
Set that there are four encircle arm type structure with its integrated molding in wherein described retainer body.
Preferably, the connection structure, using being preceding of a straight line type, use state is in " W " type.
The shape memory fracture fixing apparatus of the utility model, as a result of above technical scheme, makes itself and the prior art
It compares, has the following advantages and advantageous effect：
1st, compared with the fixed forms such as steel plate screw, without drilling in normal bone tissues, two will not be caused to bone tissue
Secondary damage.After union, fixator can be taken out by way of adding in ice water in fixed position, it will not be after taking-up
Hole is remained on bone tissue, will not be had an adverse effect to its bearing capacity.
2nd, with it is existing encircle arm-type fracture fixing apparatus compared with, the fracture fixing apparatus of the application Patent design can pass through company
Binding structure, into " W " type transition process, is tensed the retainer body structure at left and right sides of it and is leaned on to centre from initial linear type
Hold together, so as to generate longitudinal pressing function, ensure combining closely for bone stump, be conducive to the healing of fracture.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the structure diagram of utility model shape memory fracture fixing apparatus original state；
Fig. 2 is the structure diagram before utility model shape memory fracture fixing apparatus use；
Fig. 3 is the structure diagram of utility model shape memory fracture fixing apparatus use state
Reference sign：
1-- retainer bodies；2-- connection structures；3-- encircles arm type structure.
Specific embodiment
The utility model will be further described below with reference to the accompanying drawings.
Referring to as shown in Figure 1-Figure 3, present embodiment is made by nickel-titanium shape memory alloy material, including two
A completely identical in structure retainer body 1 and the connection structure 2 of centre；Set in the retainer body 1 there are four and one
Bodyization is molding to encircle arm type structure 3.
Before use, shape memory fracture fixing apparatus is placed in ice water, will encircle arm 3 with tool struts to both sides, and will
Connection structure 2 stretches as far as possible, as shown in Figure 2.
In use, fixator to be placed on to the both ends of fracture site, under body temperature effect, fixator encircles arm 3
It will restore its original shape, and be fixed on the both ends of fracture site.Connection structure 2 will also restore its initial " W " type, so as to generate
Longitudinal pressing function, as shown in Figure 3.
Present embodiment is compared with the fixed forms such as steel plate screw, will not be right without drilling in normal bone tissues
Bone tissue causes secondary damage；After union, fixator can be taken out by way of adding in ice water in fixed position,
Hole will not be remained after taking-up on bone tissue, will not be had an adverse effect to its bearing capacity；Arm-type bone is encircled with existing
Folding fixator compare, present embodiment can by connection structure from initial linear type into " W " type transition process, tense
Retainer body structure at left and right sides of it is drawn close to centre, so as to generate longitudinal pressing function, ensures the close knot of bone stump
It closes, is conducive to the healing of fracture.
The above is merely intended for describing the technical solutions of the present application, but not for limiting the present application, those of ordinary skill in the art couple
The other modifications or equivalent replacement that the technical solution of the utility model is made, without departing from technical solutions of the utility model
Spirit and scope should all cover in the right of the utility model.
Claims (2)
1. shape memory fracture fixing apparatus, it is characterised in that：It is made by shape memory alloy material, including two structures
Identical retainer body and the connection structure of centre；It is integrally melted into it there are four being set in wherein described retainer body
Type encircles arm type structure.
2. shape memory fracture fixing apparatus according to claim 1, it is characterised in that：The connection structure uses
Before be of a straight line type, use state be in " W " type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720364842.4U CN207477587U (en) | 2017-04-10 | 2017-04-10 | Shape memory fracture fixing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720364842.4U CN207477587U (en) | 2017-04-10 | 2017-04-10 | Shape memory fracture fixing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207477587U true CN207477587U (en) | 2018-06-12 |
Family
ID=62483688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720364842.4U Expired - Fee Related CN207477587U (en) | 2017-04-10 | 2017-04-10 | Shape memory fracture fixing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207477587U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106943222A (en) * | 2017-04-10 | 2017-07-14 | 苏州海斯凯医疗科技有限公司 | Shape memory fracture fixing apparatus |
-
2017
- 2017-04-10 CN CN201720364842.4U patent/CN207477587U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106943222A (en) * | 2017-04-10 | 2017-07-14 | 苏州海斯凯医疗科技有限公司 | Shape memory fracture fixing apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180612 Termination date: 20190410 |