CN203208102U - Degradable internal fracture fixation body - Google Patents
Degradable internal fracture fixation body Download PDFInfo
- Publication number
- CN203208102U CN203208102U CN 201320048527 CN201320048527U CN203208102U CN 203208102 U CN203208102 U CN 203208102U CN 201320048527 CN201320048527 CN 201320048527 CN 201320048527 U CN201320048527 U CN 201320048527U CN 203208102 U CN203208102 U CN 203208102U
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- fixing head
- fixing plate
- millimeters
- degradable
- fixation body
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Abstract
The utility model discloses a degradable internal fracture fixation body. The degradable internal fracture fixation body is mainly composed of a fixing plate and a plurality of fixing rib strips. The fixing plate is in the shape of a long strip, the radial section of the fixing plate is circular or oval, and a plurality of small holes are formed in the radial section of the fixing plate; the fixing rib strips are in the shape of the letter C, one ends of the fixing rib strips are connected with the fixing plate and arrayed on two sides of the fixing plate, the other ends of the fixing rib strips are mutually connected through an outer fixing plate. The degradable internal fracture fixation body has the advantages that the whole degradable internal fracture fixation body is heated to become soft so as to be matched with the outer shape of the bone, the fractured bone is fixed in the method of wrapping the bone wholly by using the fixing plate as a supporting body, the fixing rib strips as a wrapping body and the outer fixing plate as an auxiliary supporting body and a wrapping body, and therefore, the degradable internal fracture fixation body is high in fastening degree, capable of effectively preventing shifting of the fractured bone, free of damage on sclerotin, and safe and reliable; the degradable internal fracture fixation body is made of degradable raw materials, has high strength and good biocompatibility, can be degraded to harmless substances after a period of time in the human body and discharged out of the human body, and does not need to be taken out through a second operation.
Description
Technical field
This utility model relates to medical apparatus and instruments material field, relates in particular to a kind of fracture internal fixation body that in vivo can harmless degraded.
Background technology
At present, most popular fracture internal fixation body mostly is metal alloy and makes clinically, directly in knochenbruch, knochenbruch is connected and fixed as screw, steel plate, steel wire or the hone lamella made from rustless steel, titanium alloy etc. etc., it mainly exists following defective and deficiency: need carry out second operation it is taken out, not only the suffered wound of patient is big, to bear very big misery on the body ﹠ mind, and operation cost height, certain risk also had; Simultaneously, because the elastic modelling quantity of metal alloy much larger than the elastic modelling quantity of skeleton, can destroy the normal stress environment of skeleton healing, not only hinders the quick formation of fracture site callus, also complication such as osteoporosis and osteanabrosis may be caused, refracture can be caused when serious; In addition, the metallic weapon of implantation can influence the patient and carries out 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 big wound and sequela to the patient; Also there is fixing illusive shortcoming in the holder of part fit type.
The utility model content
The technical problem that this utility model mainly solves provides a kind of degradable fracture internal fixation body that is applicable to the skeleton except rib, uses it to do the synthetism operation 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 this utility model adopts is: degradable fracture internal fixation body 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 the both sides that are arranged in described fixing head with described fixing head, the other end of described fixedly rib interconnects by outside fixing head; Described fixing head, fixedly rib and outside fixing head are one-body molded, and 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 the 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 that raw material is made with polylactic acid (PLA) or polyhydroxylactic acid (PLGA).
The beneficial effects of the utility model are: agree with the profile of skeleton after making its deliquescing by the integral body heating to fracture internal fixation body, be supporter with the fixing head, be inclusion enclave with fixing rib, be supplemental support body and inclusion enclave with outside fixing head, mode by integral body parcel skeleton fixes knochenbruch, and fastening degree height can prevent effectively that displacement from appearring in knochenbruch, and injury of the bone matter is not safe and reliable; Be that the fixed body that raw material is made has good intensity and biocompatibility with polylactic acid (PLA) or polyhydroxylactic acid (PLGA), 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 the degradable fracture internal fixation of this utility model body;
Fig. 2 is the front view of the degradable fracture internal fixation of this utility model body;
Fig. 3 is the profile of the degradable fracture internal fixation of this utility model body.
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 utility model, structural feature in detail, realized purpose and effect, give explanation below in conjunction with embodiment and conjunction with figs. are detailed.
See also Fig. 1 to Fig. 3, the degradable fracture internal fixation body 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 the both sides that are arranged in described fixing head 1 with 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 are one-body molded with proof strength, and its whole radial section is rounded or oval, agree with mutually with the cross sectional shape of skeleton, guarantee higher applying degree.
Preferably, relatively being provided with described fixedly rib 2 numbers in twos 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 one group with two, three are one group or improve fixed effect in the mode that integral body connects 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 on 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 patient's age and different its length of 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 that raw material is made with polylactic acid (PLA) or polyhydroxylactic acid (PLGA), can generate harmless material after the degraded and excrete.
Below choose three groups of specific embodiments concrete using method of the present utility model be described:
Embodiment 1: after processing through injection moulding with polylactic acid (PLA) raw material, the degradable fracture internal fixation body that produces is of a size of long 60 millimeters, wide 8 millimeters, thick 2.4 millimeters of fixing head, long 60 millimeters, wide 4 millimeters, thick 2.4 millimeters of outside fixing head, fixedly rib is 8, wide 10 millimeters, thick 2.4 millimeters, 4 of every sides evenly distribute; During use, internally fixed body carries out thermoplastic earlier, fixing head is close to engage on the good knochenbruch then, can reach fixedly purpose after the curing.
Embodiment 2: after processing through injection moulding with polylactic acid (PLA) raw material, the degradable fracture internal fixation body that produces is of a size of long 40 millimeters, wide 6 millimeters, thick 1.8 millimeters of fixing head, long 40 millimeters, wide 5 millimeters, thick 1.8 millimeters of outside fixing head, 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, earlier that internal fixation body and function 80 degree Celsius are above normal saline is softening, the center fixation plate is close to engage on the good knochenbruch then, can reach fixedly purpose after 5 seconds.
Embodiment 3: after processing through injection moulding with polyhydroxylactic acid (PLGA) raw material, the degradable fracture internal fixation body that produces is of a size of long 30 millimeters, wide 5 millimeters, thick 1.5 millimeters of fixing head, long 30 millimeters, wide 4.5 millimeters, thick 1.5 millimeters of outside fixing head, fixedly rib is 4, wide 6 millimeters, thick 1.5 millimeters, 2 of every sides evenly distribute; During use, earlier that internal fixation body and function 80 degree are above normal saline is softening, fixing head is close to engage on the good knochenbruch then, can reach fixedly purpose after 5 seconds.
The beneficial effects of the utility model are: agree with the profile of skeleton after making its deliquescing by the integral body heating to fracture internal fixation body, be supporter with the fixing head, be inclusion enclave with fixing rib, be supplemental support body and inclusion enclave with outside fixing head, mode by integral body parcel skeleton fixes knochenbruch, and fastening degree height can prevent effectively that displacement from appearring in knochenbruch, and injury of the bone matter is not safe and reliable; Be that the fixed body that raw material is made has good intensity and biocompatibility with polylactic acid (PLA) or polyhydroxylactic acid (PLGA), degradable is that harmless material excretes after after a while in human body, need not to take out through second operation.
The above only is embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes this utility model description and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.
Claims (5)
1. degradable fracture internal fixation body 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 the both sides that are arranged in described fixing head with described fixing head, the other end of described fixedly rib interconnects by outside fixing head; Described fixing head, fixedly rib and outside fixing head are one-body molded, and its whole radial section is rounded or oval.
2. degradable fracture internal fixation body according to claim 1, it is characterized in that: described fixing head length is 20～60 millimeters, and width is 4～10 millimeters, and thickness is 1.5～2.5 millimeters; The width of described fixedly rib is 3～10 millimeters, and thickness is 1.5～2.5 millimeters; The thickness of described outside fixing head is 1.5～2.5 millimeters.
3. degradable fracture internal fixation body according to claim 1 is characterized in that: described fixedly between the rib for equidistantly or not equidistantly arranging.
4. degradable fracture internal fixation body according to claim 1, it is characterized in that: described fixing head is straight strip or the crooked strip with certain radian.
5. according to any described degradable fracture internal fixation body of claim 1 to 4, it is characterized in that: described fixing head, fixedly rib and outside fixing head are that raw material is made with polylactic acid or polyhydroxylactic acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320048527 CN203208102U (en) | 2013-01-28 | 2013-01-28 | Degradable internal fracture fixation body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320048527 CN203208102U (en) | 2013-01-28 | 2013-01-28 | Degradable internal fracture fixation body |
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| Publication Number | Publication Date |
|---|---|
| CN203208102U true CN203208102U (en) | 2013-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320048527 Expired - Fee Related CN203208102U (en) | 2013-01-28 | 2013-01-28 | Degradable internal fracture fixation body |
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| Country | Link |
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| CN (1) | CN203208102U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103083076A (en) * | 2013-01-28 | 2013-05-08 | 厦门市壳聚糖生物科技有限公司 | Degradable fracture internal fixation body |
-
2013
- 2013-01-28 CN CN 201320048527 patent/CN203208102U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103083076A (en) * | 2013-01-28 | 2013-05-08 | 厦门市壳聚糖生物科技有限公司 | Degradable fracture internal fixation body |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 Termination date: 20200128 |
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| CF01 | Termination of patent right due to non-payment of annual fee |