CN103083076A - Degradable fracture internal fixation body - Google Patents
Degradable fracture internal fixation body Download PDFInfo
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- CN103083076A CN103083076A CN2013100332657A CN201310033265A CN103083076A CN 103083076 A CN103083076 A CN 103083076A CN 2013100332657 A CN2013100332657 A CN 2013100332657A CN 201310033265 A CN201310033265 A CN 201310033265A CN 103083076 A CN103083076 A CN 103083076A
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Abstract
The invention discloses a degradable fracture internal fixation body which is mainly formed by a fixing plate and a plurality of fixing ribs, wherein the fixing plate is shaped like a long strip, the radial section of the fixing plate is circular or oval, and a plurality of small holes are formed in the fixing plate; and the fixing ribs are C-shaped, one ends of the fixing ribs are connected with the fixing plate and arranged on two sides of the fixing plate, the other ends of the fixing ribs are connected with each other through outside fixing plates. The degradable fracture internal fixation body has the advantages that after the fracture internal fixation body is heated on the whole to be softened, the fracture internal fixation body accords with a bone in shape, the fixing plate serves as a support body, the fixing ribs serve as wrapping bodies, the outside fixing plates serve as auxiliary support bodies and wrapping bodies, a broken bone is fixed through a mode of wrapping the bone on the whole, the fastening degree is high, displacement of the broken bone can be effectively prevented, sclerotin is not damaged, and safety and reliability are achieved; and the fracture internal fixation body is made of degradable materials, has good strength and biocompatibility, can be degraded into harmless materials to be discharged of a human body after a period of time in the human body, and is needless of being taken out through a secondary operation.
Description
Technical field
The present invention relates to the medical apparatus and instruments Material Field, relate in particular to fixed body in a kind of fracture that in vivo can harmless degraded.
Background technology
At present, fixed body mostly is metal alloy and makes in most popular fracture clinically, directly in knochenbruch, knochenbruch is connected and fixed as screw, steel plate, steel wire or the hone lamella etc. made from rustless steel, titanium alloy etc., it mainly exists following defective and deficiency: need to carry out second operation it is taken out, not only the suffered wound of patient is large, will bear very large misery on body ﹠ mind, and the operation cost is high, also has certain risk; Simultaneously, due to the elastic modelling quantity of the metal alloy elastic modelling quantity much larger than skeleton, can destroy the normal stress environment of skeleton healing, not only hinder the quick formation of fracture site callus, also the complication such as osteoporosis and osteanabrosis may be caused, refracture can be caused when serious; In addition, the metallic weapon of implantation can affect the patient and carries out the inspections such as CT.Except the fracture fixation of metal material external, the existing fracture fixation body made from the degradable material adopts the parts such as plastics screw that embed bone marrow more, complex forming technology, produce inconvenience, and operation process is also comparatively numerous and diverse, embedded type plastics screw can damage sclerotin equally again, brings very large wound and sequela to the patient; Also there is fixing illusive shortcoming in the holder of part fit type.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of interior fixed body of degradable fracture that is applicable to the skeleton except rib, does fracture reduction operation with it and can not hurt sclerotin, and is fastening reliable and easy and simple to handle.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: fixed body in degradable fracture is provided, mainly combined by fixing head, some fixedly ribs and outside fixing head, described fixing head be shaped as strip, which is provided with some apertures; Described fixedly rib be shaped as C shape, this fixedly rib one end be connected with described fixing head the both sides that are arranged in described fixing head, the other end of described fixedly rib interconnects by outside fixing head; Described fixing head, fixedly rib and outside fixing head one-body molded, its whole radial section is rounded or oval.
Wherein, described fixing head length is generally 20～60 millimeters, and width is generally 4～10 millimeters, and thickness is generally 1.5～2.5 millimeters; The width of described fixedly rib is generally 3～10 millimeters, and thickness is generally 1.5～2.5 millimeters; The thickness of described outside fixing head is generally 1.5～2.5 millimeters.
Wherein, described fixedly between rib for equidistantly or not equidistantly arranging.
Wherein, described fixing head is straight strip or the crooked strip with certain radian.
Wherein, described fixing head, fixedly rib and outside fixing head are made take polylactic acid (PLA) or polyhydroxylactic acid (PLGA) as raw material.
The invention has the beneficial effects as follows: agree with the profile of skeleton after making its deliquescing by the integral body heating to the interior fixed body of fracturing, take fixing head as supporter, take fixing rib as inclusion enclave, take outside fixing head as supplemental support body and inclusion enclave, the mode of wrapping up skeleton by integral body fixes knochenbruch, and fastening degree is high, can prevent effectively that displacement from appearring in knochenbruch, and injury of the bone matter, not safe and reliable; The fixed body of making as raw material take polylactic acid (PLA) or polyhydroxylactic acid (PLGA) has good intensity and biocompatibility, and degradable is that harmless material excretes after after a while in human body, need not to take out through second operation.
Description of drawings
Fig. 1 is the structural representation of fixed body in the degradable fracture of the present invention;
Fig. 2 is the front view of fixed body in the degradable fracture of the present invention;
Fig. 3 is the profile of fixed body in the degradable fracture of the present invention.
The main element symbol description:
1, fixing head; 2, fixing rib; 3, outside fixing head.
The specific embodiment
By describing technology contents of the present invention, structural feature in detail, being realized purpose and effect, below in conjunction with embodiment and coordinate accompanying drawing to be explained in detail.
See also Fig. 1 to Fig. 3, fixed body in the degradable fracture of present embodiment, mainly combined by fixing head 1 and some fixedly ribs 2, described fixing head 1 be shaped as strip, which is provided with some apertures, this aperture can increase the contact area of fixing head 1 and body fluid, thereby guarantees certain degradation rate; Described fixedly rib 2 be shaped as C shape, this shape with can agree with mutually with the profile of skeleton well, thereby good stickiness and parcel property is provided; Fixedly rib 2 one ends are connected with described fixing head 1 both sides that are arranged in described fixing head 1, and fixedly the other end of rib 2 interconnects by outside fixing head 3; Described fixing head 1, fixedly rib 2 and outside fixing head 3 one-body molded with proof strength, its whole radial section is rounded or oval, agrees with mutually with the cross sectional shape of skeleton, guarantees higher applying degree.
preferably, relatively being provided with in twos described fixedly rib 2 numbers in the both sides of described fixing head 1 according to the practical situation of knochenbruch is 2, 4, 6, 8, 10, 12 or more, fixedly rib 2 is take two as one group, three are one group or improve fixed effect in the mode of integrated connection outside fixing head 3, guarantee the parcel that it is good, the thickness of described outside fixing head 3 is generally 1.5～2.5 millimeters, the width of described fixedly rib 2 is generally 3～10 millimeters, thickness is generally 1.5～2.5 millimeters, fixedly the distance of 2, rib can according to the skeleton of different parts by equidistantly or not equidistant mode arrange, described fixing head 1 can be straight strip or the crooked strip with certain radian according to the shape of skeleton, be generally 20～60 millimeters according to its length of difference of age of patient and knochenbruch position, width is generally 4～10 millimeters, and maximum ga(u)ge is generally 1.5～2.5 millimeters, described fixing head 1, fixedly rib 2 and outside fixing head 3 are made as raw material take polylactic acid (PLA) or polyhydroxylactic acid (PLGA), can generate harmless material after degraded and excrete.
Below choose three groups of specific embodiments concrete using method of the present invention be described:
Embodiment 1: after polylactic acid (PLA) raw material process injection molding, in the degradable fracture that produces fixed body be of a size of long 60 millimeters of fixing head, wide 8 millimeters, thick 2.4 millimeters, outside fixing head is long 60 millimeters, wide 4 millimeters, thick 2.4 millimeters, fixedly rib is 8, wide 10 millimeters, thick 2.4 millimeters, 4 of every sides evenly distribute; During use, first internally fixed body carries out thermoplastic, then fixing head is close to engage on good knochenbruch, can reach fixedly purpose after curing.
Embodiment 2: after polylactic acid (PLA) raw material process injection molding, in the degradable fracture that produces fixed body be of a size of long 40 millimeters of fixing head, wide 6 millimeters, thick 1.8 millimeters, outside fixing head is long 40 millimeters, wide 5 millimeters, thick 1.8 millimeters, fixedly rib is 6, wide 8 millimeters, thick 1.8 millimeters, 3 of every sides, fixedly the one-sided spacing between rib is respectively 6 millimeters and 8 millimeters; During use, first that interior fixed body is softening with the above normal saline of 80 degree Celsius, then the center fixing head is close on the good knochenbruch of joint, can reach fixedly purpose after 5 seconds.
Embodiment 3: after polyhydroxylactic acid (PLGA) raw material process injection molding, in the degradable fracture that produces fixed body be of a size of long 30 millimeters of fixing head, wide 5 millimeters, thick 1.5 millimeters, outside fixing head is long 30 millimeters, wide 4.5 millimeters, thick 1.5 millimeters, fixedly rib is 4, wide 6 millimeters, thick 1.5 millimeters, 2 of every sides evenly distribute; During use, first that interior fixed body is softening with the above normal saline of 80 degree, then fixing head is close on the good knochenbruch of joint, can reach fixedly purpose after 5 seconds.
The invention has the beneficial effects as follows: agree with the profile of skeleton after making its deliquescing by the integral body heating to the interior fixed body of fracturing, take fixing head as supporter, take fixing rib as inclusion enclave, take outside fixing head as supplemental support body and inclusion enclave, the mode of wrapping up skeleton by integral body fixes knochenbruch, and fastening degree is high, can prevent effectively that displacement from appearring in knochenbruch, and injury of the bone matter, not safe and reliable; The fixed body of making as raw material take polylactic acid (PLA) or polyhydroxylactic acid (PLGA) has good intensity and biocompatibility, and degradable is that harmless material excretes after after a while in human body, need not to take out through second operation.
The above is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or equivalent flow process conversion that utilizes description of the present invention and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present invention.
Claims (5)
1. fixed body in degradable fracture is characterized in that: mainly combined by fixing head, some fixedly ribs and outside fixing head, described fixing head be shaped as strip, which is provided with some apertures; Described fixedly rib be shaped as C shape, this fixedly rib one end be connected with described fixing head the both sides that are arranged in described fixing head, the other end of described fixedly rib interconnects by outside fixing head; Described fixing head, fixedly rib and outside fixing head one-body molded, its whole radial section is rounded or oval.
2. fixed body in degradable fracture according to claim 1, it is characterized in that: described fixing head length is generally 20～60 millimeters, and width is generally 4～10 millimeters, and thickness is generally 1.5～2.5 millimeters; The width of described fixedly rib is generally 3～10 millimeters, and thickness is generally 1.5～2.5 millimeters; The thickness of described outside fixing head is generally 1.5～2.5 millimeters.
3. fixed body in degradable fracture according to claim 1 is characterized in that: described fixedly between rib for equidistantly or not equidistantly arranging.
4. fixed body in degradable fracture according to claim 1, it is characterized in that: described fixing head is straight strip or the crooked strip with certain radian.
5. fixed body in the described degradable fracture of according to claim 1 to 4 any one is characterized in that: described fixing head, fixedly rib and outside fixing head are made take polylactic acid (PLA) or polyhydroxylactic acid (PLGA) as raw material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100332657A CN103083076A (en) | 2013-01-28 | 2013-01-28 | Degradable fracture internal fixation body |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100332657A CN103083076A (en) | 2013-01-28 | 2013-01-28 | Degradable fracture internal fixation body |
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| CN103083076A true CN103083076A (en) | 2013-05-08 |
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| CN2013100332657A Pending CN103083076A (en) | 2013-01-28 | 2013-01-28 | Degradable fracture internal fixation body |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022125037A1 (en) * | 2020-12-10 | 2022-06-16 | Istanbul Teknik Universitesi | Fixation enhancer for plate-type fixators |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0024635A1 (en) * | 1979-08-23 | 1981-03-11 | Ulrich Mennen | Internal fixation device for bone fractures |
| US20080082101A1 (en) * | 2006-09-08 | 2008-04-03 | Erhard Reisberg | Implant, implant system, and use of an implant and implant system |
| WO2009150047A1 (en) * | 2008-06-12 | 2009-12-17 | Medxpert Gmbh | Device for osteosynthesis and for fixing and stabilizing long bones |
| CN102440825A (en) * | 2011-09-13 | 2012-05-09 | 中国人民解放军第一七五医院 | Combined rib fixer |
| CN102784014A (en) * | 2012-08-14 | 2012-11-21 | 中国科学院深圳先进技术研究院 | Porotic bone scaffold and preparation method thereof |
| CN203208102U (en) * | 2013-01-28 | 2013-09-25 | 厦门市壳聚糖生物科技有限公司 | Degradable internal fracture fixation body |
-
2013
- 2013-01-28 CN CN2013100332657A patent/CN103083076A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0024635A1 (en) * | 1979-08-23 | 1981-03-11 | Ulrich Mennen | Internal fixation device for bone fractures |
| US20080082101A1 (en) * | 2006-09-08 | 2008-04-03 | Erhard Reisberg | Implant, implant system, and use of an implant and implant system |
| WO2009150047A1 (en) * | 2008-06-12 | 2009-12-17 | Medxpert Gmbh | Device for osteosynthesis and for fixing and stabilizing long bones |
| CN102440825A (en) * | 2011-09-13 | 2012-05-09 | 中国人民解放军第一七五医院 | Combined rib fixer |
| CN102784014A (en) * | 2012-08-14 | 2012-11-21 | 中国科学院深圳先进技术研究院 | Porotic bone scaffold and preparation method thereof |
| CN203208102U (en) * | 2013-01-28 | 2013-09-25 | 厦门市壳聚糖生物科技有限公司 | Degradable internal fracture fixation body |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022125037A1 (en) * | 2020-12-10 | 2022-06-16 | Istanbul Teknik Universitesi | Fixation enhancer for plate-type fixators |
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Application publication date: 20130508 |