CN1443515A - Shape memory type bone-joining device - Google Patents
Shape memory type bone-joining device Download PDFInfo
- Publication number
- CN1443515A CN1443515A CN 03114251 CN03114251A CN1443515A CN 1443515 A CN1443515 A CN 1443515A CN 03114251 CN03114251 CN 03114251 CN 03114251 A CN03114251 A CN 03114251A CN 1443515 A CN1443515 A CN 1443515A
- Authority
- CN
- China
- Prior art keywords
- pressurization
- bone fracture
- plate body
- fracture device
- pawl
- Prior art date
- 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.)
- Granted
Links
- 208000010392 Bone Fractures Diseases 0.000 claims abstract description 56
- 239000007769 metal material Substances 0.000 claims abstract description 4
- 235000002198 Annona diversifolia Nutrition 0.000 claims description 7
- 235000019687 Lamb Nutrition 0.000 claims description 3
- 241000282842 Lama glama Species 0.000 claims 2
- 206010017076 Fracture Diseases 0.000 abstract description 20
- 244000082490 Proboscidea louisianica Species 0.000 abstract description 2
- 235000015926 Proboscidea louisianica ssp. fragrans Nutrition 0.000 abstract description 2
- 235000015925 Proboscidea louisianica subsp. louisianica Nutrition 0.000 abstract description 2
- 210000000988 bone and bone Anatomy 0.000 description 10
- 241000283898 Ovis Species 0.000 description 8
- 201000008482 osteoarthritis Diseases 0.000 description 6
- 244000303258 Annona diversifolia Species 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 244000261422 Lysimachia clethroides Species 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 241000272814 Anser sp. Species 0.000 description 3
- 230000001054 cortical effect Effects 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- 230000000295 complement effect Effects 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 238000005088 metallography Methods 0.000 description 2
- 229910001000 nickel titanium Inorganic materials 0.000 description 2
- 230000002085 persistent effect Effects 0.000 description 2
- NOQGZXFMHARMLW-UHFFFAOYSA-N Daminozide Chemical group CN(C)NC(=O)CCC(O)=O NOQGZXFMHARMLW-UHFFFAOYSA-N 0.000 description 1
- 206010031264 Osteonecrosis Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- HLXZNVUGXRDIFK-UHFFFAOYSA-N nickel titanium Chemical compound [Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ti].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni].[Ni] HLXZNVUGXRDIFK-UHFFFAOYSA-N 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
The present invention discloses a bone-joining device for curing fracture, its whole body is made up by using temperature shape memory metal material, including plate body, locking pin holes, holding jaw pair, pulling arc and ram's horn portion. Said invention can be used for fracture, and can implement continuous longitudinal axis, transverse core and othe direction multiple dimensional pressurized and encapsulated joining fixation.
Description
Technical field
The invention discloses a kind of bone fracture device.Particularly a kind of shape memory type bone fracture device for the treatment of complicated special-shaped osseous part fracture usefulness such as osteoarthrosis bone.
Background technology
Metal alloy (as Nitinol) has shape memory characteristic, along with people to the deepening continuously of its essence and the research of using, it is in the application of medical domain also more and more widely.The 1028th～1029 page of the 10th the 12nd phase of volume of " Chinese orthopedics magazine " October in 2002, the shape memory type bone fracture device of a kind of likeness in form to swan disclosed.It is made of the wing vertical pressurization arc hook of holding pawl and gooseneck boom gooseneck shape of the goose that is provided with on bone fracture device plate body, the plate body, and package unit abbreviates SMC as.During use, in advance with the SMC autoclave sterilization, flow in 0～4 ℃ frozen water divides exhibition to hold pawl (goose alar part) again, and the exhibition distance is greater than the knochenbruch diameter; Flatten vertically pressurization arc (gooseneck); The halfway mark of plate body (goose body) is aimed at fracture insert SMC.According to the cortical bone place boring at the pressurization arc hook place of plate body and insert pressurization arc hook (gooseneck boom); Afterwards, make the SMC rewarming, finish fixing with 40～50 ℃ normal saline.This bone fracture device is except that having characteristics such as the fixed anti-shearing force of fracture bone plate, bending force, revolving force, following characteristics of tool also in design: plate body and the effect of holding the pawl branch of staggering mutually, generation is fixed the multiple spot of knochenbruch section, help early stage stable on the one hand, on the other hand because fixedly the force is many, bone fracture device is disperseed the pressure of canned paragraph knochenbruch, be unlikely the osteonecrosis that produces under the High Voltage; Vertical plus-pressure that the restoring force of pressurization arc can provide the knochenbruch after being fixed initiatively, continue; Because the boring on pressurization arc hook and the cortical bone belongs to matched in clearance, can not produce stress shielding, has realized the dynamic fixation connection.
But this bone fracture device still exists certain weak point.At first, it only is applicable to straight osseous part fracture, and to the fracture patient of complicated irregular bone and position such as osteoarthrosis surrounding fracture etc., the suitability has significant limitation; Secondly it mainly is that knochenbruch is realized the Y-direction pressurization, does not consider the pressurization to horizontal heart direction and other direction; The 3rd, the arc hook that vertically pressurizes must be inserted the boring on the cortical bone, can produce unnecessary interference to pulp cavity; The 4th, knochenbruch one side is fixing can to produce eccentric stress; The 5th, complex structure, during use the operation easy inadequately.
Summary of the invention
Purpose of the present invention just provides a kind of at knochenbruch position Y-direction, laterally all can produce persistent pressure fixation power effectively on heart direction and other direction, stress produces without acceptance of persons, noiseless to pulp cavity, good to osteoarthrosis surrounding fracture, the suitability of complicated special-shaped osseous part fracture, bone fracture device simple in structure, easy to operate.
Fixed form of the present invention adopts Cornu Caprae seu Ovis containment type internal fixation, is easy to also receive fixing for the fracture fragment of osteoarthrosis surrounding fracture, complicated special-shaped osseous part etc., has reduced the fixing eccentricity stress that produces in knochenbruch one side and to the interference of pulp cavity.The present invention is achieved by the following technical solution.Bone fracture device of the present invention is made one by temperature shape memory type metal material (as nickel-titanium alloy material), and it comprises that root has locking nail hole, the terminal plate body that spatially is the lamb horn shape, and plate body is provided with the pressurization of folding and holds pawl and pressurization arcing.
As a further improvement on the present invention, the plate body of bone fracture device of the present invention can be arranged to binary llama horn shape, and body body part all is positioned on the same cylinder or the conical surface, and root connects, end can extend into complementary shaped and direction of extension according to the surface condition at knochenbruch position, end can be provided with locking nail hole.
Further improve as of the present invention, the plate body of bone fracture device of the present invention can be arranged to binary llama horn shape, root is from connecting, the body body partly lays respectively in two planes that are mutually certain angle, end can extend into complementary shaped and direction of extension according to knochenbruch position surface condition, terminal part can be provided with locking nail hole, becomes the fractures of outer dihedral bone in order to section.
Bone fracture device of the present invention, plate body is provided with pressurization arcing, pressure rings pawl and Cornu Caprae seu Ovis arc, cooperatively interacting between them, form Cornu Caprae seu Ovis containment type fixed structure, can apply axially the knochenbruch each several part, laterally heart direction and the pressurization of other direction continuous driving force, eliminated the fixing eccentric stress that produces in a side, noiseless to pulp cavity, the patient to the fracture of osteoarthrosis surrounding fracture, complicated special-shaped osseous part etc. has the good curing adaptability especially; Simultaneously, plus-pressure is directly produced in conjunction with holding pawl by the pressurization arcing that is provided with on the plate body longitudinally, and is simple in structure, convenience simple to operation;
Description of drawings
Fig. 1 is the contour structures sketch map of bone fracture device first embodiment of the present invention;
Fig. 2 is the contour structures sketch map of bone fracture device second embodiment of the present invention;
Fig. 3 is the contour structures sketch map of bone fracture device the 3rd embodiment of the present invention;
Fig. 4 is the user mode figure of the bone fracture device of first, second embodiment of the present invention;
Fig. 5 is the user mode figure of the bone fracture device of second, third embodiment of the present invention;
The specific embodiment
Below in conjunction with accompanying drawing bone fracture device of the present invention is further described.As shown in Figure 1, bone fracture device of the present invention is by plate body 1 and connect pressurization on it and hold pawl 2 and constitute, and plate body 1 is provided with the locking nail hole 4 of Y-direction pressurization arcing 3 and root, and the end 5 of body plate body 1 is arranged to lamb angle arcuation.The relevant portion of holding 2 pairs of knochenbruch of pawl carries out grasping and controls, cooperating plate body 1 with the fixed while of the axial drawing of knochenbruch each several part, produce the plus-pressure of horizontal centripetal direction, add the hook pressure effect of plate body 1 terminal Cornu Caprae seu Ovis arc, realization is fixedly connected to the multidimensional of the containment type of knochenbruch, can on knochenbruch position Y-direction, horizontal heart direction and other direction, all produce persistent pressure fixation power effectively, stress produces without acceptance of persons, noiseless to pulp cavity, good, simple in structure, easy to operate to osteoarthrosis surrounding fracture, the suitability of complicated special-shaped osseous part fracture.The integral body of bone fracture device is to be made by unidirectional memory-type temperature shape memory metal material, the low-temperature metallography stress deformation, high-temperature metallography is got back to original state, and promptly when bone fracture device ambient temperature of living in during at 35～40 ℃, its shape of holding pawl 2, arcing 3 and ram's horn 5 will remain on original state; When its residing ambient temperature was reduced to below 5 ℃, it was straight to hold pawl 2, arcing 3 and 5 stretching, extensions of Cornu Caprae seu Ovis; When ambient temperature returned to more than 35 ℃ again, its each several part shape then returned to the original shape state again separately.
Before the operation, earlier according to the size of the shape that will treat knochenbruch portion and size, select adaptive bone fracture device and it is positioned in 0～4 ℃ of freezing aseptic saline, it is open and flat standby that pawl 2, arcing 3 and Cornu Caprae seu Ovis 5 are held in pressurization; Then the broken ends of fractured bone is resetted, pieces together, and carry out temporary fixed to the bone piece with Kirschner wire; Again the bone fracture device of getting ready is taken out from freezing saline, embrace and be attached to the appropriate location that resets and piece together whole knochenbruch surface well, and by locking nail hole 4 the knochenbruch interlocking of bone fracture device and section one side is fixed with pinning; Make the bone fracture device rewarming with 45 ℃ Sterile Saline at last, the shape that making pressurization hold pawl 2, arcing 3 and Cornu Caprae seu Ovis 5 is recovered, and fixedly finishes.When bone fracture device is settled, to guarantee that especially the section of knochenbruch is in the suitable position that 2 of pawls are held in adjacent two pairs of pressurizations, this two couple is held on one section plate body 1 of 2 of pawls, be provided with pressurization arcing 3, come fracture face is produced vertically fixedly pressurization.
As shown in Figure 2, the plate body 1 of bone fracture device of the present invention is a binary llama horn shape, its root is from connecting, the pressurization that body body portion arranges with some serials is held pawl and is connected on the same cylinder or the conical surface 2, end then spatially extends, can be designed to different open and flat arcuations according to different needs or reverse also curved arc stretch-like, in the hope of at the extension of different knochenbruch outer surfaces in shape during fixation of bone fragments, produce axially and the fixedly connected power of multidimensional of putting and reversing etc. is pressed, seizes on both sides by the arms, dialled to the hook of other direction beyond the horizontal heart direction.Look treatment situation needs, on the big Cornu Caprae seu Ovis end locking nail hole 4 can be set, be suitable for the needs of the terminal extra pinning bed knife of blade plate.Such bone fracture device in use, the terminal of llama gusset body 1 can recover shape equally under high temperature conditions, thereby produces corresponding compression strength constantly, strengthened therapeutic effect, strengthened the adaptability of bone fracture device to fracture disease.
As shown in Figure 3, the plate body 1 of bone fracture device of the present invention is a binary llama horn shape, the root gusset is from connecting, body body portion holds pawl with the pressurization of respective shapes and is connected on two planes that are mutually certain angle 2, end then spatially extends, and can be designed to different open and flat arcuations according to different needs or reverse also curved arc stretch-like.This structure is used for the fractures that the knochenbruch cross section is outer corneous bone.Plate body 1 can fully be adjacent to two edged surfaces of knochenbruch and cooperate this moment, had strengthened being connected and fixed effect.
Fig. 4, Fig. 5 illustrate the state diagram that is used in combination of first, second embodiment of bone fracture device of the present invention and second, third embodiment respectively.As seen it has widely the disease of being suitable for than bone fracture device of the prior art, and the multidimensional plus-pressure that is connected and fixed will inevitably produce containment type and be connected and fixed effect, stress without acceptance of persons, and no pulp cavity interference, and simple in structure is used easy to operately, and medical wound is little.
Above-described bone fracture device is held pawl to 2 on the plate body 1, can be provided with two pairs, also can be according to different treatment needs, and how right be provided with, to receive best effect.
It is pointed out that the technical scheme of the relevant bone fracture device that equivalent substitution drew of all any improvement that does not break away from technical conceive of the present invention or technical characterictic, all is protection scope of the present invention.
Claims (4)
1, a kind of bone fracture device, integral body is by making with a kind of temperature shape memory type metal material, the locking nail hole (4), the pressurization that comprise the setting of plate body (1) and root thereof are held pawl to (2), it is characterized in that: be provided with pressurization arcing (3) on the described plate body (1), terminal (5) are the lamb horn shape.
2, by the described bone fracture device of claim 1, it is characterized in that: described plate body (1) is a binary llama horn shape, and root is from connecting, and body body portion holds pawl by pressurization (2) are connected on the same cylinder or the conical surface, the end is that curved arc stretch-like or curved arc add and reverse stretch-like, and locking nail hole can be set.
3, by the described bone fracture device of claim 1, it is characterized in that: described plate body (1) is a binary llama horn shape, root is from connecting, body body portion holds pawl by the pressurization that becomes the angle to connect and (2) is connected on two planes of respective angles, end is curved arc stretch-like or curved arc and adds and reverse stretch-like, and locking nail hole can be set.
4, by claim 1,2 or 3 described bone fracture devices, it is characterized in that: it can be two pairs to (2) that pawl is held in described pressurization, how rightly also can be.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03114251 CN1219493C (en) | 2003-04-18 | 2003-04-18 | Shape memory type bone-joining device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03114251 CN1219493C (en) | 2003-04-18 | 2003-04-18 | Shape memory type bone-joining device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1443515A true CN1443515A (en) | 2003-09-24 |
| CN1219493C CN1219493C (en) | 2005-09-21 |
Family
ID=27814790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03114251 Expired - Fee Related CN1219493C (en) | 2003-04-18 | 2003-04-18 | Shape memory type bone-joining device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1219493C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104825216A (en) * | 2015-05-27 | 2015-08-12 | 熊静 | Metaphysis pressurizing fixator |
| CN108210054A (en) * | 2018-02-05 | 2018-06-29 | 兰州西脉记忆合金股份有限公司 | A kind of memorial alloy femur fracture plate |
-
2003
- 2003-04-18 CN CN 03114251 patent/CN1219493C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104825216A (en) * | 2015-05-27 | 2015-08-12 | 熊静 | Metaphysis pressurizing fixator |
| CN108210054A (en) * | 2018-02-05 | 2018-06-29 | 兰州西脉记忆合金股份有限公司 | A kind of memorial alloy femur fracture plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1219493C (en) | 2005-09-21 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHONGSHAN UNIVERSITY ATTACHED NO.6 HOSPITAL Free format text: FORMER OWNER: PAN TAO Effective date: 20080523 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080523 Address after: The village of Guangdong city in Guangzhou Province, two cross road No. 26 Patentee after: THE SIXTH AFFILIATED HOSPITAL OF SUN YAT-SEN University Address before: The First Affiliated Hospital,Sun Yat-sen University Patentee before: Pan Tao |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050921 |