CN112168455A - Novel recyclable thermoplastic elastomer fracture fixation assembly and use method thereof - Google Patents
Novel recyclable thermoplastic elastomer fracture fixation assembly and use method thereof Download PDFInfo
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- CN112168455A CN112168455A CN202011092919.XA CN202011092919A CN112168455A CN 112168455 A CN112168455 A CN 112168455A CN 202011092919 A CN202011092919 A CN 202011092919A CN 112168455 A CN112168455 A CN 112168455A
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- plate main
- fixing plate
- main body
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/01—Orthopaedic devices, e.g. splints, casts or braces
- A61F5/04—Devices for stretching or reducing fractured limbs; Devices for distractions; Splints
- A61F5/05—Devices for stretching or reducing fractured limbs; Devices for distractions; Splints for immobilising
- A61F5/058—Splints
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- Nursing (AREA)
- Orthopedic Medicine & Surgery (AREA)
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Abstract
The invention discloses a novel recyclable thermoplastic elastomer fracture fixing assembly which comprises a fixing plate main body in an isosceles trapezoid shape, wherein a plurality of through air holes are formed in the fixing plate main body, two long-strip-shaped positioning bulges are symmetrically arranged on each side waist of the fixing plate main body and are close to the edge of the fixing plate main body, the two waists of the fixing plate main body are connected through an elastic band buckling assembly, the elastic band buckling assembly is connected with the positioning bulges through clamping grooves, and the clamping grooves are fixed on the positioning bulges through fixing pieces. The novel fracture fixation assembly obtained by the invention has the characteristics of light weight, low price, recyclability, good air permeability, convenience in installation, easiness in disassembly and fine adjustment.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a novel recyclable thermoplastic elastomer fracture fixation assembly and a using method thereof.
Background
The fracture fixing component is the most commonly used auxiliary equipment in orthopedic treatment, and currently, plaster and splints are used for fixing patients in clinical fracture treatment. The traditional plaster fixing mode has poor air permeability, heavy paste, needs two days for natural solidification and needs a baking lamp to heat for accelerating solidification. The plaster is fixed and then can only be used once because the size is unchangeable, thus causing waste, simultaneously, the plaster is changeable, thereby aggravating the limb swelling phenomenon of the patient to oppress the tail end of the limb, or reducing the fixation effect because the affected limb is detumescent or becomes thin and loose, the curative effect is weakened to some extent, and the poor air permeability of the plaster can also cause the affected limb of the patient to be sultry, and the internal wound is bred and inflamed by bacteria.
Except the traditional plaster fixation mode, the affected limb is clinically fixed by adopting a macromolecular splint. Its preparation process is complicated strict, and this price that leads to the polymer splint is higher relatively, and the cooperation medical bandage uses the back size unadjustable, and the polymer splint only can open a bag when using, avoids long-time contact air sclerosis inefficacy, and a bag of polymer splint is opened the back and must be accomplished fixedly in five minutes, and operating time is short, need be prudent when demolising, and simultaneously, the polymer splint also can only disposable, non-used repeatedly.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a novel recyclable thermoplastic elastomer fracture fixation assembly. The invention has the characteristics of light weight, low price, recyclability, good air permeability, convenient installation, easy disassembly and fine adjustment.
The purpose of the invention is realized by the following technical scheme:
the utility model provides a novel fixed subassembly of recoverable thermoplastic elastomer fracture, is including the fixed plate main part that is the isosceles trapezoid shape, be provided with a plurality of gas pockets that run through in the fixed plate main part, it is protruding that the symmetry is provided with two long banding location on every side waist of fixed plate main part, the location is protruding to be close to the edge of fixed plate main part sets up, connect through elastic band buckle subassembly between two waists of fixed plate main part, elastic band buckle subassembly with connect through the draw-in groove between the location arch, the draw-in groove passes through the mounting to be fixed on the location arch.
In a further aspect of the above-described aspect,
the air holes are uniformly distributed on the fixing plate main body.
In a further aspect of the above-described aspect,
the fixing piece is a screw.
In a further aspect of the above-described aspect,
the elastic band buckle assembly comprises an elastic band and a T-shaped buckle, the movable end of the T-shaped buckle is in contact with the fixing plate main body, the two sides of the movable end are symmetrically arranged in the two clamping grooves, and the connecting end of the T-shaped buckle is connected with the elastic band.
In a further aspect of the above-described aspect,
the two sides of the elastic band are symmetrically connected with two T-shaped buckles, and the two T-shaped buckles are respectively contacted with the two waists of the fixing plate main body.
In a further aspect of the above-described aspect,
the fixing plate main body is formed by mixing thermoplastic elastomer SEBS and phase-change material medical paraffin, and the mass fraction of the paraffin is 80% -88%.
In a further aspect of the above-described aspect,
a method of using a fracture fixation assembly, comprising the steps of:
s1: preparing each part needed to be used in the fracture fixation assembly;
s2: placing the fixing plate main body in a high-temperature environment for processing for a period of time, and taking out the fixing plate main body when the fixing plate main body is transparent;
s3: cooling the transparent fixing plate main body for a period of time, then attaching the fixing plate main body to the outer side of the fracture of the patient, and finally inserting the T-shaped buckle into the clamping groove;
s4: and cooling the fixing plate main body to room temperature, and completing the fixation of the fracture fixing assembly after the fixing plate main body is completely hardened.
In a further aspect of the above-described aspect,
in the S2, the temperature of the high-temperature environment is 55-200 ℃.
In a further aspect of the above-described aspect,
in S2, the fixing plate body is heated for 10-30 min.
In a further aspect of the above-described aspect,
in S3, the cooling time of the fixing plate main body is 3-10 min. .
The invention has the beneficial effects that:
the invention solves the defect of poor air permeability of the existing fracture fixation assembly by punching, realizes plasticity reversibility by the phase change performance of the composite material, avoids material waste, and can be recycled and reused. The composite material has a melting point almost the same as that of paraffin, and when the temperature is higher than the melting point, the composite material has the soft elastic characteristic of a thermoplastic elastomer and is very fit for limbs. The elastic band realizes the size fine adjustment to keep the bone folded plate always attached to the limb, thereby strengthening the treatment effect. The convenient installation of draw-in groove buckle design is dismantled, guarantees the integrality of material plate body. The invention has wide controllable heating or cooling range and stronger operation flexibility when in use.
Drawings
FIG. 1 is a perspective view of the fixing assembly;
FIG. 2 is a schematic side view of FIG. 1 at A;
FIG. 3 is a schematic top view of the fastening assembly after deployment;
FIG. 4 is a DSC chart of medical paraffin and SEBS/paraffin composite material;
FIG. 5 is a diagram of SEBS/paraffin composite TG.
In the figure, 1-a fixing plate main body, 2-air holes, 3-clamping grooves, 4-screws, 5-elastic bands, 6-T-shaped buckles and 7-positioning bulges.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution:
the utility model provides a novel fixed subassembly of recoverable thermoplastic elastomer fracture, including being the fixed plate main part 1 of isosceles trapezoid shape, be provided with a plurality of gas pockets 2 that run through on the fixed plate main part 1, it is the symmetry on every side waist of fixed plate main part 1 and is provided with two long banding location archs 7, the edge setting that location arch 7 is close to fixed plate main part 1, connect through elastic band buckle subassembly between two waists of fixed plate main part 1, be connected through draw-in groove 3 between elastic band buckle subassembly and the location arch 7, draw-in groove 3 passes through the mounting to be fixed on location arch 7. The fixing plate body 1 is in an isosceles trapezoid shape after being unfolded as shown in fig. 3, two side faces of each waist are provided with a long strip-shaped positioning protrusion 7, one side face of each positioning protrusion 7 is flush with the waist of the fixing plate body 1, two ends of each positioning protrusion 7 are flush with two ends of the fixing plate body 1 respectively (namely flush with the upper bottom and the lower bottom of the fixing plate body 1 respectively), and one edge of the clamping groove 3 is fixedly connected with the elastic band clamping component (namely one edge of the clamping groove 3 is fixedly connected with the T-shaped clamp 6). The mounting is screw 4, and the screw uses the good nylon customization diameter of high temperature resistant plasticity to be 3mm grub screw, and the screw is high temperature resistant, and invariant under the heating state does not soften, plays good fixed action at connecting clamping groove 3 and the location arch 7 on fixed plate main part 1, and customization 1mm packing ring combines the screw to use, consolidates the screw. The clamping groove 3 is high temperature resistant, does not deform or soften in a heating state, and can be repeatedly and circularly heated and cooled.
In some embodiments, the pores 2 are evenly distributed on the fixation plate body 1. Because skin need ventilate, so set up gas pocket 2 on fixed plate main part 1, evenly set up gas pocket 2 and make the later stage when fixing fixed plate main part 1 at patient's fracture department, prevent that fixed plate main part 1 from seriously warping because of the atress is uneven. The ventilation performance of the fracture fixing plate is enhanced after the hole is punched, the comfort level of a patient is improved, and sweating and bacterial growth are avoided.
In some embodiments, the elastic band buckle assembly includes an elastic band 5 and a T-shaped buckle 6, the movable end of the T-shaped buckle 6 contacts with the fixing plate body 1, two sides of the movable end are disposed at two symmetrically disposed clamping grooves 3, and the connecting end of the T-shaped buckle 6 is connected with the elastic band 5. Two sides of the elastic band 5 are symmetrically connected with two T-shaped buckles 6, and the two T-shaped buckles 6 are respectively contacted with two waists of the fixing plate main body 1. The elastic band 5 is fixedly connected with the connecting end of the T-shaped buckle 6, the clamping grooves 3 are symmetrically connected to the two sides of the T-shaped buckle, and the two positioning protrusions 7 on the same waist of the fixing plate main body 1 can be arranged in the two clamping grooves 3. Wherein, elastic band 5 is also isosceles trapezoid, and its two waists are fixed continuous with two T type buckles 6 respectively, and the both ends of elastic band 5 also are flushed respectively with the both ends of fixed plate main part 1 (the height of elastic band 5 is the same with the height of fixed plate main part 1 promptly), and the length of draw-in groove 3 also is the same with the height of elastic band 5 simultaneously. The elastic belt 5 is 10 pounds of elasticity and 2cm of width, two ends of the elastic belt are permanently connected with the T-shaped buckle 6 customized by plastics with excellent high temperature resistance and plasticity, the elastic belt 5 has micro-elasticity and can change along with the micro-elasticity in the micro-change process of the size of the affected limb, so that the bone fixing plate main body 1 can always fit the affected limb and always keep a good fixing effect.
The fixing plate main body 1 is formed by mixing a thermoplastic elastomer SEBS and phase-change material medical paraffin, and the mass fraction of the paraffin is 80-88%. In some embodiments, the fixing plate body 1 is made of SEBS/paraffin composite phase change material. Medical paraffin and SEBS with corresponding mass are respectively weighed by the fixing plate main body 1 according to the mass fraction of 85% of the medical paraffin and are placed in a beaker, the paraffin is placed in an electrothermal constant-temperature drying box at 60 ℃ until the paraffin is completely melted, the SEBS is poured into the liquid paraffin in the drying box and is uniformly stirred, and then the material is moved to a mold. Setting the temperature at 120 ℃ and the vulcanizing time at 2 hours, carrying out hot pressing on the composite material, and taking out the finished product after the hot pressing is finished. The fixing plate body 1 has both properties of a thermoplastic elastomer and a phase change material. The phase change material has a narrow phase change range, is solid below a phase change point and is liquid above the phase change point. The phase change point of the composite material is not changed and is still 50-52 ℃. The thermoplastic elastomer is light in weight, rich in elasticity and strong in tensile property, the medical paraffin is liquid when the temperature of the main body is higher than 52 ℃, and the composite material presents the soft property of the thermoplastic elastomer. When the temperature of the main body is lower than 50 ℃, the medical paraffin is solid, and the composite material HAs the hardness which is stronger than that of the paraffin and is 88HA, so that the medical paraffin can support and fix the affected limb. And recycling the materials by circularly heating and cooling.
A method of using a fracture fixation assembly, comprising the steps of:
(1) preparing each part needed to be used in the fracture fixation assembly;
(2) treating the fixing plate main body 1 in a high-temperature environment for a period of time, and taking out the fixing plate main body 1 when the fixing plate main body 1 is transparent, wherein the temperature of the high-temperature environment is 55-200 ℃, and the heating time of the fixing plate main body 1 is 10-30 min;
(3) cooling the transparent fixing plate main body 1 for a period of time, then attaching the fixing plate main body to the outer side of the fracture of a patient, and finally inserting the T-shaped buckle 6 into the clamping groove 3, wherein the cooling time of the fixing plate main body 1 is 3-10 min;
(4) and cooling the fixing plate main body 1 to room temperature, and finishing the fixation of the fracture fixing component after the fixing plate main body 1 is completely hardened.
When the fixing plate is used, after the fixing plate body 1 is attached to an arm, the elastic band buckle component is slowly inserted into the clamping groove 3 along the direction of the clamping groove 3 and fixed.
The invention solves the defect of poor air permeability of the existing fracture fixation assembly by punching, realizes plasticity reversibility by the phase change performance of the composite material, avoids material waste, and can be recycled and reused. The composite material has a melting point almost the same as that of paraffin, and when the temperature is higher than the melting point, the composite material has the soft elastic characteristic of a thermoplastic elastomer and is very fit for limbs. The elastic band realizes the size fine adjustment to keep the bone folded plate always attached to the limb, thereby strengthening the treatment effect. The convenient installation of draw-in groove buckle design is dismantled, guarantees the integrality of material plate body. The invention has wide controllable heating or cooling range and stronger operation flexibility when in use.
The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A novel recoverable thermoplastic elastomer fracture fixation assembly is characterized in that: including fixed plate main part (1) that is the isosceles trapezoid shape, be provided with a plurality of gas pockets (2) that run through on fixed plate main part (1), it is the symmetry and is provided with two long banding location archs (7) on the every side waist of fixed plate main part (1), location arch (7) are close to the edge setting of fixed plate main part (1), connect through elastic band buckle subassembly between two waists of fixed plate main part (1), elastic band buckle subassembly with connect through draw-in groove (3) between location arch (7), draw-in groove (3) are fixed through the mounting on location arch (7).
2. The novel recyclable thermoplastic elastomer fracture fixation assembly of claim 1, wherein: the air holes (2) are uniformly distributed on the fixing plate main body (1).
3. The novel recyclable thermoplastic elastomer fracture fixation assembly of claim 1, wherein: the fixing piece is a screw (4).
4. The novel recyclable thermoplastic elastomer fracture fixation assembly of claim 1, wherein: the elastic band buckle assembly comprises an elastic band (5) and a T-shaped buckle (6), the movable end of the T-shaped buckle (6) is in contact with the fixing plate body (1), the two sides of the movable end are symmetrically arranged in the two clamping grooves (3), and the connecting end of the T-shaped buckle (6) is connected with the elastic band (5).
5. The novel recyclable thermoplastic elastomer fracture fixation assembly of claim 4, wherein: the two sides of the elastic band (5) are symmetrically connected with two T-shaped buckles (6), and the two T-shaped buckles (6) are respectively contacted with the two waists of the fixing plate main body (1).
6. The novel recyclable thermoplastic elastomer fracture fixation assembly of claim 1, wherein: the fixing plate main body (1) is formed by mixing a thermoplastic elastomer SEBS and phase-change material medical paraffin, and the mass fraction of the paraffin is 80% -88%.
7. The method of using a fracture fixation assembly according to any one of claims 1-5, comprising the steps of:
s1: preparing each part needed to be used in the fracture fixation assembly;
s2: placing the fixing plate main body (1) in a high-temperature environment for treatment for a period of time, and taking out the fixing plate main body (1) when the fixing plate main body is transparent;
s3: cooling the transparent fixing plate main body (1) for a period of time, then attaching the fixing plate main body to the outer side of the fracture of a patient, and finally inserting the T-shaped buckle (6) into the clamping groove (3);
s4: and cooling the fixing plate main body (1) to room temperature, and completing the fixation of the fracture fixing component after the fixing plate main body (1) is completely hardened.
8. The method of using a fracture fixation assembly of claim 7, wherein: in the S2, the temperature of the high-temperature environment is 55-200 ℃.
9. The method of using a fracture fixation assembly of claim 7, wherein: in the step S2, the heating time of the fixing plate main body (1) is 10-30 min.
10. The method of using a fracture fixation assembly of claim 7, wherein: in S3, the cooling time of the fixing plate main body (1) is 3 to 10 min.
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| CN202011092919.XA CN112168455A (en) | 2020-10-13 | 2020-10-13 | Novel recyclable thermoplastic elastomer fracture fixation assembly and use method thereof |
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| CN202011092919.XA CN112168455A (en) | 2020-10-13 | 2020-10-13 | Novel recyclable thermoplastic elastomer fracture fixation assembly and use method thereof |
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| CN211301014U (en) * | 2019-12-31 | 2020-08-21 | 江苏信立康医疗科技有限公司 | Anti-drop limb sleeve of air wave pressure therapeutic instrument |
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|---|---|---|---|---|
| CN201529187U (en) * | 2009-10-16 | 2010-07-21 | 邵长振 | Bone fracture elastic fixed splint |
| CN103040550A (en) * | 2013-01-24 | 2013-04-17 | 张兴平 | Medical self-adaptive pre-shaped clamping plate device |
| CN203042588U (en) * | 2013-02-18 | 2013-07-10 | 高星海 | Elastic restraint strap for psychiatry department |
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