CN207654225U - A kind of tapered memory alloy for breastbone fixator - Google Patents
A kind of tapered memory alloy for breastbone fixator Download PDFInfo
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- CN207654225U CN207654225U CN201720508630.9U CN201720508630U CN207654225U CN 207654225 U CN207654225 U CN 207654225U CN 201720508630 U CN201720508630 U CN 201720508630U CN 207654225 U CN207654225 U CN 207654225U
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Abstract
The utility model discloses a kind of tapered memory alloy for breastbone fixators, it includes small one and large one two parallel open annular structure, the top surface of two open annular structures is up-narrow and down-wide hunchbacked face, wherein, small open annular structure is curved inwardly by two becate folded arms and is formed in opposite directions, big opening cyclic structure is encircled arm and is curved inwardly in opposite directions and formed by two length, is encircled in arm adjacent two and is encircled between arm top for four and passes sequentially through hunchbacked arm single-beam and connect to form up-narrow and down-wide hunchbacked face.The taper sternum fixer containing small one and large one two parallel open annular structure is made by using a memorial alloy silk material in the utility model, the tapered planar and two open annular structures of all back of a bow arm single-beam compositions, in horizontal, longitudinal space connection, suitable for wound, irregular patient uses, cohesive force is stronger, fracture end is not easy rotation displacement, and foreign body sensation is small after installation, safe and reliable, convenient disassembly.
Description
Technical field
The utility model belongs to medical instrument, is related to sternum fixer, and in particular to a kind of tapered memory alloy for breastbone is solid
Determine device.
Background technology
The fracture of sternum caused by traffic accident, the reasons such as fall in recent years, fracture of sternum is more serious thoracic injury,
Fracture makes the wall of the chest lose support and soften and cause paradoxical breathing and pendular movement of mediastinum, to seriously affect the breath cycle work(of patient
Can, threat to life.Generally use wire binding, Kirschner wire fixation, Interal fixation and synthetic resin solid in thoracic surgery at present
Surely equal fixators.When doing thoracic surgery, due to the needs treated to patient, it is sometimes desirable to by breastbone along midline incision, hand
Breastbone is tied up or Kirschner wire fixation with stainless steel wire again after the completion of art.When fixed, on the both sides of the intermediate longitudinal cut of breastbone
Punching, puts on steel wire in hole, after breastbone is closed, then steel wire is tied up.Breastbone belongs to flat bone, is easy displacement, and due to lung
The tension of respiration, it is difficult to control the binding dynamics of steel wire.The too loose of binding does not have a fixed effect, binding it is too tight,
Be easy to make steel wire fracture, and longitudinal steel wire is easy to tear on breastbone, using steel wire, steel wire easily loosens, cause breastbone poor healing,
The adverse consequences such as healing delay.After breastbone heals, steel wire is not easy to take out, in some instances it may even be possible to be damaged to infrasternal important device
Official leads to malpractice.Although more firm using Interal fixation, need to drill, is easy to damage retrosternal organ, and body
Interior steel plate is easy to happen cell reaction, needs to carry out second operation taking-up.Although synthetic resin has the characteristics that can absorb, it is not required to
It wants second operation to take fixture, but need to be inserted into ossis when its fixation, be susceptible to infection, and fixed effect is not firm.On
Difficulty is larger when stating existing surgical procedure fixation, and operating time is longer, it is often more important that difficulty is taken out after healing, if operation
It is improper also to hurt internal organs under chest.With the development of science and technology, bone fracture plate for breastbone, such bone plate is made using memorial alloy plank
It, can since plank is formed by forging, rolling, wire cutting although fixing intensity and connective stability is greatly improved
It is uneven there is an interior tissue, the defects of intensity, plasticity, hardness, there may be risk of breakage after such bone plate installation,
It is time-consuming and laborious when being installed in patient body not there is only hidden danger, and dismantling, and the tool that while dismantling needs is various, especially tears open
It needs to pry open claw one by one with special pliers cooperation crowbar after cold compress bone plate when unloading, disassembly process very complicated, time-consuming, deposits
In risk, bone plate could smoothly be dismantled by generally requiring medical staff and having certain operating experience, be needed in some critical cases
Open chest rescue in emergency circumstances, slightly careless manipulation will bring injury to sufferer, serious directly to jeopardize patient's life
Life.The substantially hunchbacked face all squarely uses of existing sternum fixer are restricted, and are not suitable for the trouble with irregular wound
Person.
Utility model content
It is difficult to fixed to solve the problems, such as to occur at breastbone irregular wound, the utility model provides a kind of tapered note
Recall alloy sternum fixer.
The utility model adopts the following technical solution：A kind of tapered memory alloy for breastbone fixator comprising small one and large one
The top surface of two parallel open annular structures, two open annular structures is up-narrow and down-wide hunchbacked face, wherein small open annular
Structure is curved inwardly by two becate folded arms and is formed in opposite directions, and big opening cyclic structure is encircled arm and curved inwardly in opposite directions and formed by two length,
It encircles in arm adjacent two and encircles between arm top for four and pass sequentially through hunchbacked arm single-beam and connect to form up-narrow and down-wide hunchbacked face.
Further, it is made of being formed by twin beams after a matched doubling in memory alloy wire both ends.
Further, it encircles arm parallel first and second is formed by bending by twin beams inward at both ends and encircle arm and twin beams for four
Two single-beams in stage casing be squeezed into respectively it is bifilar it is backward in be formed by bending parallel third and fourth and encircle arm composition, wherein the first ring
The brachium of folded arm is less than the second brachium for encircling arm, and third encircles arm and first and encircles the brachiums such as arm in a pair of of small split ring of formation
Shape structure, Fourth Ring folded arm and second encircle the brachiums such as arm in a pair of of formation big opening ring-type bigger than small open annular structure ring
Structure.
Further, it adjacent two are encircled in arm encircles the hunchbacked arm single-beam stage casing between arm and squeezes inwardly and formed for four
The pressure rings of arc-shaped, four pressure rings are in the same plane up and down, wherein left and right two pressure rings add down in symmetrically
Pressure ring is more than the radian of upper pressure rings, and planes where making four pressure rings are in up-narrow and down-wide up-narrow and down-wide hunchbacked face, four
It is respectively formed hollow out between the circular arc top of pressure rings and between the circular arc tail end of adjacent two pressure rings.
Further, in two open annular structures the equal turning-in in arm end is encircled positioned at opening.
Further, the twin beams both ends formed after a memory alloy wire doubling are matched end and arc end, and matched end is
First encircles arm end end, and arc end is the second end end for encircling arm, and two memory alloy wires at matched end are rounded.
Further, third and fourth end end for encircling arm is also arc end.
Further, there are apertures for the arc end formed after being rolled over by memory alloy wire single-beam.
A kind of preparation process of above-mentioned memory alloy for breastbone fixator, specifically includes following steps：
A. silk material fixed length is cut according to the length of required memory alloy for breastbone fixator；
B. starting device installs corresponding mould in equipment, and debugging positioning mold is carried out according to required length, curvature；
C. silk material is placed on mold, enables heating device and carries out thermoforming, reach certain temperature, molding is moulding, bending
For circular arc, forming ring folded arm；
D. use end face processing equipment that will encircle arm end terminal reason into fillet；
E. the processing of formed product rear surface, heat treatment, cleaning, packaging.
The utility model has the beneficial effects that：
1, the taper sternum fixer of the utility model contains small one and large one two parallel open annular structure, passes through
It is made of a memorial alloy silk material, is suitable for the irregular patient of wound and uses.Each arm of encircling is by memory alloy wire
Twin beams is formed by bending, fixation, lasting self-pressurization annular " cohesive force " is formed after rewarming relatively by force, fracture end is not easy to revolve
Shift position.It encircles arm to be integrally formed using memory alloy wire with hunchbacked arm, no section, whole smooth are without corner angle, immobilized patients chest
Bone is small to blood vesssls and nerves injuries, foreign body sensation is small and overcomes the left and right separation of human body respiration expansionary force, energy persistent pressure, is not easy to take off
It falls, securely and reliably.Cold compress is only needed when being dismantled after patient's recovery from illness, not needing auxiliary tool can easily take out, easy to operate
Fast, operative cycle is substantially reduced, convenient disassembly thoroughly solves that safety is poor, plate forming product easy fracture, has and splits
The cumbersome problem of line, dismounting.
2, four pressure rings of the utility model form up-narrow and down-wide taper back of a bow arm plane, are increased after patient's installation
The contact area of the back of a bow enhances hunchbacked strength and stability, the molding pressure rings of memorial alloy silk material and internal contact area
It is few, it is respectively formed hollow out between the top of four pressure rings and between the tail end of adjacent two pressure rings, reduces to transport the blood of breastbone hiding
Gear is conducive to the soft tissue blood circulation of breastbone revascularization and sternum area, shortens healing cycle.
3, the utility model encircles that arm is twin beams and pressure rings be single-beam are memorial alloy silk material, and silk material cross section is more than
Plate product, tensile strength and encircles power, toughness and fatigue resistance and is obtained for prodigious raising, after installation it is fixed not
Easy fracture.
4, the utility model encircles arm and pressure rings in horizontal, longitudinally disposed, easy to install, fixed after installation, subtracts significantly
Low fracture of sternum operating difficulty avoids respiratory movement that later stage fixture is caused the generations such as to loosen, can restore thorax shape rapidly, hence it is evident that
Mitigate pain, reduces the complication such as lung inflammation, atelectasis and occur.
5, the utility model tricyclic folded arm end is set as arc end, and one encircles arm end to be set as matched end, circular arc
There are aperture, two memory alloy wires at matched end are rounded at end；The friction to patient's body pleura is reduced after installation to stimulate, and makes
It is no longer needed to use lung ventilator in hospital with rear general patient, shortens the hospital stays, improve the quality of living, restored labor to greatest extent
Power meets requirement of the human body to implantation material, and histocompatbility is good, and wear-resisting, corrosion-resistant.
6, the utility model has the function of unique " memory ", encircles the equal turning-in in arm end, is formed after rewarming
Lasting self-pressurization ring provides good mechanics for union and ensures that cohesive force is strong, and it is firm to encircle the obvolvent of arm end.
7, the tapered planar and two open annular structures of all hunchbacked arm single-beam compositions of the utility model, in horizontal, longitudinal direction
Space is integrally connected molding, and this method is simple for process, formed product is fast, actual demand is disclosure satisfy that, according to fracture and class
It is moulding that type selects corresponding length, curvature to carry out.The fixation of suitable dimension is selected in art according to intercostal size and classification of fracture
Device.
Description of the drawings
The structural schematic diagram of Fig. 1 the utility model；
Fig. 2 the utility model stereograms；
The small open annular structural schematic diagram of Fig. 3 the utility model；
Fig. 4 the utility model big opening cyclic structure schematic diagrames.
In figure：1- back of a bow arms single-beam, 2- big openings cyclic structure, the small open annular structures of 3-, 4- fillets, 5- first are encircled
Arm, 6- second encircles arm, 7- thirds encircle arm, the Fourth Rings 8- folded arm, 9- pressure rings, 10- hollow outs, 11- apertures, 12- arc ends.
Specific implementation mode
A kind of tapered memory alloy for breastbone fixator, it is double using being formed by after a matched doubling in memory alloy wire both ends
Beam is made.It includes small one and large one two parallel open annular structure, and the top surface of two open annular structures is up-narrow and down-wide
Hunchbacked face, wherein, small open annular structure 3 is curved inwardly by two becate folded arms and is formed in opposite directions, and big opening cyclic structure 2 is by two length
Arm is encircled to curve inwardly to be formed in opposite directions.In two open annular structures the equal turning-in in arm end is encircled positioned at opening.Four
It encircles in arm adjacent two and encircles between arm top to pass sequentially through hunchbacked arm single-beam 1 and connect and form the up-narrow and down-wide taper back of a bow
Face.
Wherein, four encircle arm curved inwardly in opposite directions by twin beams both ends formed one on the other parallel first encircle arm 5,
The second two memory alloy wire single-beams for encircling arm 6 and twin beams stage casing pull open squeeze respectively merge into it is bifilar after curve inwardly in opposite directions
Form that parallel third one on the other encircles arm 7, Fourth Ring folded arm 8 forms, wherein the first brachium for encircling arm 5 is less than the
Two encircle the brachium of arm 6, and third encircles arm 7 and first and encircles the brachiums such as arm 5 in a pair of of small open annular structure of formation, Fourth Ring
Folded arm 8 and second encircles the brachiums such as arm 6 in a pair of of formation big opening cyclic structure bigger than small open annular structure ring.Twin beams two
End is matched end and arc end 12, and matched end is the first end end for encircling that 5 end of arm is last, and arc end 12 encircles arm 6 for second, matched
Two memory alloy wires rounded 4 at end.It encircles in arm adjacent two for four and encircles the equal court in hunchbacked arm single-beam stage casing between arm
Interior to squeeze the pressure rings 9 for forming arc-shaped, four pressure rings 9 are in the same plane up and down, wherein left and right two pressurization
For ring in symmetrical, lower pressure rings are more than the radian of upper pressure rings, and planes where making four pressure rings are in up-narrow and down-wide up-narrow and down-wide
Hunchbacked face, be respectively formed hollow out 10 between the circular arc top of four pressure rings 9 and between the circular arc tail end of adjacent two pressure rings.
Third encircles arm 7, the end end of Fourth Ring folded arm 8 is also arc end.There are apertures 11 for all arc ends 12.
A kind of preparation process of above-mentioned memory alloy for breastbone fixator, specifically includes following steps：
A. silk material fixed length is cut according to the length of required memory alloy for breastbone fixator；
B. starting device installs corresponding mould in equipment, and debugging positioning mold is carried out according to required length, curvature；
C. silk material is placed on mold, enables heating device and carries out thermoforming, reach certain temperature, molding is moulding, bending
For circular arc, forming ring folded arm；
D. use end face processing equipment that will encircle arm end terminal reason into fillet；
E. the processing of formed product rear surface, heat treatment, cleaning, packaging.
When operation, tapered memorial alloy is selected according to breastbone bone type, size, sternum fixer is entirely placed in disinfection cryosel
It is allowed in water after being fully cooled, strutting the two of big opening cyclic structure 2 with specific purpose tool in brine ice encircles arm and small opening
The two of cyclic structure 3 encircle arm, so that the opening of two open annular structures is slightly larger than patient's breastbone diameter, the product is not when moulding
The moulding excess of energy, in order to avoid weaken the intensity of product, reduction breastbone, by two split rings of deformed memory alloy for breastbone fixator
Shape structure is placed on breastbone position, the gauze hot compress sternum fixer then impregnated with suitable temperature disinfection hot salt brine,
The opening that two couple of distracted two open annulars structure encircles arm is set to reduce, product resets, and completes interior fixed.When breastbone heals
Afterwards, when needing to take out sternum fixer, notch, stripping tissue are carried out, fixator to be exposed was impregnated using disinfection brine ice
The abundant cold compress sternum fixer of gauze, the opening of small one and large one two open annulars structure, which can expand, can easily take out chest
Bone anchor.
Claims (8)
1. a kind of tapered memory alloy for breastbone fixator, it is characterised in that:It includes small one and large one two parallel open annular
The top surface of structure, two open annular structures is up-narrow and down-wide hunchbacked face, wherein small open annular structure (3) is embraced by two becates
Arm curves inwardly to be formed in opposite directions, and big opening cyclic structure (2) is encircled arm and curved inwardly in opposite directions and formed by two length, and four are encircled in arm
Adjacent two, which encircle between arm top, to be passed sequentially through hunchbacked arm single-beam (1) connection and forms up-narrow and down-wide hunchbacked face.
2. a kind of tapered memory alloy for breastbone fixator as described in claim 1, it is characterised in that:Using a memorial alloy
Twin beams is formed by after the silk matched doubling in both ends to be made.
3. a kind of tapered memory alloy for breastbone fixator as claimed in claim 2, it is characterised in that:Four are encircled arm by double
Beam inward at both ends is formed by bending parallel first and encircles arm（5）, the second two single-beams difference for encircling arm (6) and twin beams stage casing
Be squeezed into it is bifilar it is backward in be formed by bending parallel third and encircle arm（7）, Fourth Ring folded arm (8) composition, wherein first encircles
The brachium of arm (5) is less than the second brachium for encircling arm (6), and third encircles arm (7) and first and encircles the brachiums such as arm (5) in a pair of of shape
At small open annular structure, Fourth Ring folded arm (8) and second encircles the brachiums such as arm (6) in a pair of of formation than small open annular structure
The big big opening cyclic structure of ring.
4. a kind of tapered memory alloy for breastbone fixator as claimed in claim 1,2 or 3, it is characterised in that:Four are encircled arm
In adjacent two hunchbacked arm single-beam stage casings encircled between arm squeeze the pressure rings (9) for forming arc-shaped inwardly, up and down
Four pressure rings (9) are in the same plane, wherein left and right two pressure rings are in symmetrical, arc of the lower pressure rings more than upper pressure rings
Degree, planes where making four pressure rings are in up-narrow and down-wide up-narrow and down-wide hunchbacked face, the circular arc tops of four pressure rings (9) it
Between and the circular arc tail end of adjacent two pressure rings between be respectively formed hollow out (10).
5. a kind of tapered memory alloy for breastbone fixator as claimed in claim 3, it is characterised in that:A piece memory alloy wire pair
The twin beams both ends formed after folding are matched end and arc end (12), and matched end encircles arm (5) end end for first, and arc end (12) is
Second encircles the end end of arm (6), and two memory alloy wires at matched end are rounded (4).
6. a kind of tapered memory alloy for breastbone fixator as described in claim 1,2,3 or 5, it is characterised in that:Two split rings
In shape structure the equal turning-in in arm end is encircled positioned at opening.
7. a kind of tapered memory alloy for breastbone fixator as described in claim 3 or 5, it is characterised in that:Third encircles arm
（7）, Fourth Ring folded arm (8) end end also be arc end.
8. a kind of tapered memory alloy for breastbone fixator as claimed in claim 7, it is characterised in that:By memory alloy wire single-beam
There are aperture (11) for the arc end (12) formed after folding.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720508630.9U CN207654225U (en) | 2017-05-09 | 2017-05-09 | A kind of tapered memory alloy for breastbone fixator |
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| CN201720508630.9U CN207654225U (en) | 2017-05-09 | 2017-05-09 | A kind of tapered memory alloy for breastbone fixator |
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| CN207654225U true CN207654225U (en) | 2018-07-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107157561A (en) * | 2017-05-09 | 2017-09-15 | 兰州西脉记忆合金股份有限公司 | A kind of tapered memory alloy for breastbone fixator |
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2017
- 2017-05-09 CN CN201720508630.9U patent/CN207654225U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107157561A (en) * | 2017-05-09 | 2017-09-15 | 兰州西脉记忆合金股份有限公司 | A kind of tapered memory alloy for breastbone fixator |
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