CN104908288A - Bone cement forming mold and method - Google Patents
Bone cement forming mold and method Download PDFInfo
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- CN104908288A CN104908288A CN201510292149.6A CN201510292149A CN104908288A CN 104908288 A CN104908288 A CN 104908288A CN 201510292149 A CN201510292149 A CN 201510292149A CN 104908288 A CN104908288 A CN 104908288A
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- bone cement
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/30—Extrusion nozzles or dies
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B2017/564—Methods for bone or joint treatment
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Orthopedic Medicine & Surgery (AREA)
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Abstract
The invention discloses a bone cement forming mold for forming a bone cement sample. The bone cement forming mold comprises a sleeve pipe assembly, a forming assembly and an extrusion part, wherein the sleeve pipe assembly comprises a containing space for storing bone cement mixed solution, the forming assembly is assembled in the containing space, and the extrusion part sheathes the forming assembly and is used for extruding the bone cement mixed solution so that the bone cement mixed solution enters the forming assembly and the bone cement sample is formed. According to the bone cement forming mold, the forming assembly is assembled in the containing space, the extrusion part sheathes the forming assembly, the extrusion part is extruded to extrude the bone cement mixed solution so that the bone cement mixed solution can enter the forming assembly and the bone cement sample is formed through extrusion. The bone cement sample can be formed through once extrusion, and the extrusion is kept to reduce the defects such as air holes and thus the bone cement sample can be suitable for compressive strength testing.
Description
Technical field
The present invention relates to medical material preparation field, particularly relate to a kind of bone cement mould and forming method.
Background technology
Bone cement is acrylic acid bone cement mainly, its main component is polymethyl methacrylate, monomer whose solution owing to there is auto polymerization consolidation effect containing C=C double bond, therefore, early than starting the 1950's for fixing joint prosthesis in Endoprostheses operation.Along with the development of medical science, bone cement product also develops into and is applied in shoulder, elbow, vertebra low viscosity injectable type bone cement, and hip, knee prosthesis medium-high viscosity bone cement.Injectable type bone cement wherein for vertebroplasty is treating osteoporosis field excellent effect, and is promoted widely.
Bone cement, as a kind of surgical implant, has strict international standard ISO5833:2002 and national pharmaceuticals industry standard YY0459-2003, with its various performance requirement of specification.In properties test request, compression strength is one of important indicator evaluating bone cement performance.But, with the intensity test of other materials different be, the sample of the intensity test of bone cement material needs to be obtained by mould molding, being prepared into of material shapingly completes substantially in a mold, therefore, the practicality of the mould of sample formation determines the quality of forming materials and the really degree of intensity test.
For the mould of advising in pharmaceuticals industry standard YY 0459-2003, effect is unsatisfactory in actual use, and reason mainly contains following 2 points:
First, the mould of advising in GB is more suitable for the performance test of joint replacement bone cement, and such bone cement is shifted then to be extruded by agitator disk to be injected in the forming hole of mould after dough period.But, solidification process due to bone cement is comparatively rapidly, in the process clamp-oned, the outside volatilization due to monomer solution of dough its curing ratio dough inside very fast is faster, thus causes the surface of the columnar material after clamp-oning compacting even to occur serious defect in inside;
Secondly, for the injectable type bone cement being applied to vertebroplasty, it is long that it mostly is the wire drawing phase, and dough period and curing time shorter, thus cannot realize extruding injection moulding.But causing material flowability to be deteriorated according to the delay in point same life period of mode of hole injection, sample product gas hole defect is obvious, and forming materials effect is undesirable, and the compression strength result error of parallel laboratory test sample is large.
Therefore, develop a kind of meet bone cement material mixing operation, once intensity test sample bone cement mould external member that is extruded and convenient operation be problem demanding prompt solution.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of the intensity test sample bone cement mould and the forming method that meet bone cement material mixing operation, once extruded and convenient operation.
In order to solve the problems of the technologies described above, embodiments of the present invention provide a kind of bone cement mould, for shaping bone cement sample, wherein,
Described bone cement mould comprises:
Described bone cement mould comprises thimble assembly, molding assembly and extrusion, described thimble assembly comprises a receiving space, described receiving space is in order to store bone cement mixed liquor, one end of described molding assembly is assemblied in described receiving space, described extrusion is sheathed on the other end of described molding assembly, and described extrusion is for extruding described bone cement mixed liquor, enters described molding assembly to make described bone cement mixed liquor and molding described bone cement sample.
Wherein, described thimble assembly comprises bottom and sleeve pipe, and described sleeve pipe is removably connected to described bottom, and described receiving space is formed on described sleeve pipe, and described bottom forms the diapire of described receiving space.
Wherein, described sleeve pipe is the cylindrical tube structure of hollow, and described sleeve pipe is threaded with described bottom.
Wherein, described molding assembly comprises profiled member and ramming stem, and described profiled member part is assemblied in described receiving space, and one end of described ramming stem is removably connected to described profiled member.
Wherein, described profiled member is cylindrical block structure, described profiled member offers screwed hole and at least one forming hole, described screwed hole is opened in the center of described profiled member, the threaded one end of described ramming stem is connected to described screwed hole, forming hole described at least one is arranged around described screwed hole, in order to fill described bone cement mixed liquor, with extruded go out described bone cement sample.
Wherein, described bone cement mould also comprises pressing piece, described pressing piece is hollow tubular structure, described pressing piece is sheathed on described ramming stem one end away from described profiled member, for profiled member described in Manual press, to make described profiled member stretch into described receiving space, and the contiguous described bottom in one end of described profiled member is arranged.
Wherein, described bone cement mould also comprises an agitating element, and described agitating element is in order to stir the bone cement mixed liquor in described receiving space.
Correspondingly, present invention also offers a kind of forming method, for molding bone cement sample, it comprises the following steps:
There is provided a thimble assembly, described thimble assembly comprises a receiving space, is added in the receiving space of described thimble assembly by described bone cement mixed liquor;
One molding assembly is provided, one end of described molding assembly is assemblied in described receiving space;
One extrusion is provided, described extrusion is sheathed on the other end of described molding assembly, and extrude described molding assembly, to enter in described molding assembly to make the bone cement mixed liquor in described receiving space and go out described bone cement sample by described extrusion extrusion forming;
Polymerizing curable is carried out to described bone cement sample.
Wherein, provide a molding assembly in step, after one end of described molding assembly is assemblied in described receiving space, further comprising the steps of:
One pressing piece is provided, described pressing piece is sheathed on the other end of described molding assembly, and press described pressing piece, make one end of described molding assembly stretch to the diapire of described receiving space;
Described pressing piece is separated with described molding assembly.
Wherein, in step to after carrying out polymerizing curable to described bone cement sample, further comprising the steps of:
Described thimble assembly is separated with described molding assembly;
Polished in the surface of described bone cement sample;
Described bone cement sample is separated with described extrusion and described molding assembly.
Bone cement mould provided by the invention by forming a receiving space on thimble assembly, bone cement mixed liquor is stored in receiving space, then one end of molding assembly is assemblied in receiving space, extrusion is sheathed on molding assembly, by extruding this extrusion, make this extrusion can extrude bone cement mixed liquor, thus bone cement mixed liquor can be entered in molding assembly, and by extruded go out bone cement sample.Owing to adopting this extruded mode to be just that it is moulding when bone cement does not form dough period, and keep extruding to reduce the defects such as pore, thus make bone cement sample be more suitable for intensity test test.It is simple that this bone cement mould has structure, is convenient to extruded advantage.
Accompanying drawing explanation
In order to be illustrated more clearly in embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the bone cement mould that embodiment of the present invention provides;
Fig. 2 is the decomposing schematic representation of the thimble assembly that embodiment of the present invention provides;
Fig. 3 is the decomposing schematic representation of the molding assembly that embodiment of the present invention provides;
Fig. 4 is the structural representation at another visual angle of profiled member in the molding assembly of Fig. 3;
Fig. 5 is the machining sketch chart of the step S1 in the forming method that provides of embodiment of the present invention;
Fig. 6 is the machining sketch chart of step S2 in the forming method that provides of embodiment of the present invention and S21;
Fig. 7 is the machining sketch chart of the step S3 in the forming method that provides of embodiment of the present invention;
Fig. 8 is the machining sketch chart of the step S5 in the forming method that provides of embodiment of the present invention;
Fig. 9 is the machining sketch chart of the step S7 in the forming method that provides of embodiment of the present invention;
Figure 10 is the machining sketch chart of the step S7 in the forming method that provides of embodiment of the present invention;
Figure 11 is the flow chart of the forming method that embodiment of the present invention provides.
Detailed description of the invention
Below in conjunction with the accompanying drawing in embodiment of the present invention, the technical scheme in embodiment of the present invention is clearly and completely described.
See also Fig. 1 to Fig. 4, a kind of bone cement mould 100 that embodiment of the present invention provides, in order to mold bone cement sample (not identifying in figure).Described bone cement mould 100 comprises thimble assembly 10, molding assembly 20 and extrusion 30.Described thimble assembly 10 comprises a receiving space 11, and described receiving space 11 is in order to store bone cement mixed liquor 101.One end of described molding assembly 20 is assemblied in described receiving space 11.Described extrusion 30 is sheathed on the other end of described molding assembly 20.
Described thimble assembly 10 comprises bottom 12 and sleeve pipe 13.In present embodiment, described bottom 12 inside is disc-shaped structure, thus can be convenient to the shaping of described bone cement sample.Described bottom 12 is provided with an opening 12a, and the madial wall of described opening 12a is provided with screw thread 121, in order to be connected with described sleeve pipe 13.Be understandable that, in other embodiments, described bottom 12 profile also can be square structure etc.
Described sleeve pipe 13 is removably connected to described bottom 12, and described sleeve pipe 13 is provided with described receiving space 11, and described bottom 12 forms the diapire of described receiving space 11.In present embodiment, described sleeve pipe 13 is the cylindrical tube structure of hollow, and described sleeve pipe 13 is threadedly connected on described bottom 12.Concrete, one end outer wall of described sleeve pipe 13 is provided with screw thread 131, and described screw thread 131 is threaded with the screw thread 121 of described bottom 12, to be linked together with described bottom 12 by described sleeve pipe 13.Meanwhile, described sleeve pipe 13 adopts with described bottom 12 and is threaded, thus can be convenient to follow-up described sleeve pipe 13 and be separated with the dismounting of described bottom 12.Be understandable that, in other embodiments, described sleeve pipe 13 to be also connected with described bottom 12 by screw or to arrange buckle structure respectively on described bottom 12 and described sleeve pipe 13, is linked together by buckle structure.
Described bone cement mixed liquor 101 is stored in described receiving space 11.Concrete, described bone cement mixed liquor 101 is that bone cement powder and monomer solution are mixed to form according to certain ratio.Described monomer solution can be the methyl methacrylate solution adding N, N-dimethyl-p-toluidine.Described bone cement powder can be the pressed powder of the polymethyl methacrylate adding benzoyl peroxide.Described bone cement mixed liquor 101 is in order to shaping described bone cement sample.
Described molding assembly 20 comprises profiled member 21 and ramming stem 22, and described profiled member 21 parts are assemblied in described receiving space 11.In present embodiment, described profiled member 21 is columniform block structure.Described profiled member 21 offers screwed hole 211 and at least one forming hole 21b, forming hole 21b described at least one is arranged around described screwed hole 211.Concrete, described profiled member 21 comprises the first link 21a and the second link 21b that are oppositely arranged, and described first link 21a is assemblied in described receiving space 11.Described second link 21b offers described screwed hole 211 and forming hole 212 described at least one, and described screwed hole 211 and forming hole 212 described at least one run through described first link 21a and the second link 21b.Described screwed hole 211 is opened in the center of described second link 21b, and described forming hole 212 is six, and six described forming holes 212 are uniformly distributed setting circlewise around the center of described screwed hole 211.Be understandable that, in other embodiments, the number of described forming hole 212 can be arranged according to actual needs.
One end of described ramming stem 22 is removably connected to described profiled member 21.In present embodiment, the material of described ramming stem 22 is easy release materials, rear bonding and cause the problems such as follow-up demoulding inconvenience to prevent described ramming stem 22 and described bone cement mixed liquor 101 from solidifying.The threaded one end of described ramming stem 22 is connected to described profiled member 21.Concrete, one end of described ramming stem 22 is provided with screw thread 221, described screw thread 221 is threadedly connected to the screwed hole 211 of described profiled member 21, so that described ramming stem 22 is connected with described profiled member 21, thus can be convenient to follow-up after molding bone cement sample, in time described ramming stem 22 can be separated with described profiled member 21, so that the demoulding of described bone cement sample.The other end of described ramming stem 22 stretches out described receiving space 11, in order to be connected with miscellaneous part.
Described extrusion 30 is sheathed on the other end of described molding assembly 20, and described extrusion 30 is for extruding described bone cement mixed liquor 101, enters described molding assembly 20 and mold described bone cement sample to make described bone cement mixed liquor 101.In present embodiment, described extrusion 30 is round tube shape structure, described extrusion 30 is sheathed on described ramming stem 22 one end away from described profiled member 21, and the diameter of described extrusion 30 is less than or equal to the interior diameter of described sleeve pipe 13, thus make described extrusion 30 can enter described receiving space 11 under the effect of extruding force, make described extrusion 30 can extrude described bone cement mixed liquor 101, to make described bone cement mixed liquor 101 can enter further in described forming hole 212, and extruded go out described bone cement sample.Concrete, described extrusion 30 is sheathed on described ramming stem 22, because described profiled member 21 enters in described receiving space 11, thus makes the liquid level of described bone cement mixed liquor 101 increase.Extrude described extrusion 30, make described extrusion 30 can enter in described receiving space 11, and the described bone cement mixed liquor 101 on described profiled member 21 is extruded, thus make described bone cement mixed liquor 101 can enter in described forming hole 212 further further, thus once extruded go out while described bone cement sample, also can reduce the dimensional contraction that described bone cement sample produces in polymerizing curable process, ensure the quality of the described bone cement sample molded.
See also Fig. 6, in order to further improvement, described bone cement mould 100 also comprises a pressing piece 40, and described pressing piece 40 is sheathed on described ramming stem 22 one end away from described profiled member 21.In present embodiment, described pressing piece 40 is the tubular structure of hollow.Described pressing piece 40, for profiled member described in Manual press 21, to make described profiled member 21 stretch into described receiving space 11, and makes the first link 21a of described profiled member 21 and described bottom 12 vicinity arrange.Concrete, when described pressing piece 40 is sheathed on described ramming stem 22, firmly press described pressing piece 40, make described pressing piece 40 can along close towards the direction of described profiled member 21 one end, simultaneously, when described pressing piece 40 contacts with described profiled member 21, continue the described pressing piece 40 of pressing, described pressing piece 40 can be made all to be pressed in described receiving space 11 by described profiled member 21, continue to apply pressing force, until described bone cement mixed liquor 101 is filled in the gap between the first link 21a of described profiled member 21 and described bottom 12 completely, now, described bone cement mixed liquor 101 can enter in the described forming hole 212 on described profiled member 21.
Because described bone cement mixed liquor 101 just starts polymerization at short notice, form viscous syrup, then forming surface bulk and there is certain viscoplasticity, need certain pressing dynamics to press.Now, if do not adopt described pressing piece 40 to press described profiled member 21, but directly press described ramming stem 22, size then likely due to described ramming stem 22 is less, and cause due to the problem of its material being unfavorable for finger presses and pressing unsuccessful, or described ramming stem 22 is caused damage and be unfavorable for follow-up shaping.So adopt described pressing piece 40 to press described profiled member 21, finger presses can be convenient to and apply larger pressure, thus described profiled member 21 can be pressed in described receiving space 11, and described bone cement mixed liquor 101 can be pressed enter in described forming hole 21.
In addition, by described pressing piece 40 is arranged respectively with described ramming stem 22, and make pressing piece 40 be sheathed on described ramming stem 22, thus can while the described profiled member 21 of satisfied pressing, can also be convenient to follow-up pressing piece 40 to be separated with ramming stem 22, be sheathed on described ramming stem 22 to be convenient to follow-up described extrusion 30 further, and described profiled member 21 and described bone cement mixed liquor are extruded, instead of the pressing piece 40 that existing employing pressing piece 40 causes with the integrated mode of ramming stem 22 to be separated with ramming stem 22 and to be unfavorable for the problem that described extrusion 30 extrudes.
See also Fig. 5, in order to further improvement, described bone cement mould 100 also comprises an agitating element 50, and described agitating element 50 is in order to stir the described bone cement mixed liquor 101 in described receiving space 11.In present embodiment, described agitating element 50 is stainless steel bar.Concrete, when bone cement powder and monomer solution are added into described receiving space 11 with certain proportion, one end of described agitating element 50 is inserted in described receiving space 11, and described bone cement powder and water are stirred, to enable described bone cement powder mix completely with monomer liquor, and then form described bone cement mixed liquor 101.
Bone cement mould provided by the invention is by being assemblied in the receiving space of sleeve pipe by molding assembly, and adopt pressing piece pressing to make the forming hole of molding assembly enter in this receiving space completely, and arrange with bottom is contiguous, then by extrusion extruding bone cement mixed liquor, this bone cement mixed liquor can be pressed into in forming hole, and mold bone cement sample.Adopt extrusion carry out once extruded go out bone cement sample, thus make the production cycle of this bone cement sample shorter.Owing to adopting this extruded mode to be just that it is moulding when bone cement does not form dough period, and keep extruding to reduce the defects such as pore, thus make bone cement sample be more suitable for intensity test test.
Seeing also Fig. 5 to Figure 11, is a kind of forming method provided by the invention, in order to mold bone cement sample 200.Concrete, this forming method comprises the following steps:
S1: provide a thimble assembly, described thimble assembly comprises a receiving space, is added in the receiving space of described thimble assembly by described bone cement mixed liquor.
In this step, described bone cement mixed liquor is by being mixed with certain proportion with monomer solution by bone cement powder, and by the formation that stirs.Concrete, in this step, time in receiving space bone cement mixed liquor being added described thimble assembly, an agitating element can be adopted, as stainless steel bar, described bone cement mixed liquor is uniformly mixed.
Described thimble assembly comprises bottom 12 and sleeve pipe 13, and sleeve pipe 13 is removably connected on bottom 12, and concrete, and sleeve pipe 13 is threaded with bottom 12, so that being separated of follow-up sleeve pipe 13 and bottom 12.
S2: provide a molding assembly, is assemblied in described receiving space by one end of described molding assembly.
The object of this step is prepared to mold described bone cement sample.Described molding assembly comprises profiled member 21 and ramming stem 22, and described profiled member 21 is assemblied in described receiving space 11, and described ramming stem 22 is removably connected on described profiled member 21, can be conveniently separated with profiled member 21 by ramming stem 22 so that follow-up.In addition, described profiled member 21 is provided with forming hole, to mold described bone cement sample.The quantity of described forming hole can be selected according to actual needs, as one, two or more etc.
S3 a: extrusion is provided, described extrusion is sheathed on the other end of described molding assembly, and extrude described molding assembly, to enter in described molding assembly to make the bone cement mixed liquor in described receiving space and by described extrusion extruded go out described bone cement sample.
The object of this step is to utilize described extrusion, described bone cement mixed liquor is extruded further, can enter in described forming hole, and once extruded go out bone cement sample, to meet the intensity test of described bone cement sample molded.
In order to further improvement, provide a molding assembly in step, after one end of described molding assembly is assemblied in described receiving space, further comprising the steps of:
S21: provide a pressing piece, is sheathed on the other end of described molding assembly by described pressing piece, and presses described pressing piece, makes one end of described molding assembly stretch to the diapire of described receiving space.
The object of this step is not easy to directly carry out pressing with ramming stem 22 to prevent because bone cement mixed liquor has viscoplasticity and occurs to be pressed in receiving space by profiled member 21, and the problem that cannot contact with bone cement mixed liquor.
S22: described pressing piece is separated with described molding assembly.
The object of this step is separated with the ramming stem 22 of molding assembly by pressing piece 40, is sheathed on described ramming stem 22 by extrusion 30 so that follow-up.
S4: polymerizing curable is carried out to described bone cement sample.
The object of this step is to make bone cement sample shaping further.Concrete, this bone cement sample takes out after reaching solidification completely, to ensure that the bone cement sample formed meets requirement of experiment.
S5: described thimble assembly is separated with described molding assembly.
The object of this step is to be separated with ramming stem 22 by thimble assembly, so that the demoulding of follow-up described bone cement sample.Concrete, first the bottom 12 of described thimble assembly can be separated with described sleeve pipe 13, then described sleeve pipe 13 is moved from the bottom up along described extrusion 30, and finally make described sleeve pipe 13 be separated with described extrusion 30, thus be convenient to the demoulding of follow-up bone cement sample.
S6: polished in the surface of described bone cement sample.
The object of this step be in order to ensure shaping after the size of described bone cement sample can meet requirement of experiment.Because the forming hole on described profiled member 22 is of a size of standard size, so is polished in the surface of the bone cement sample taken shape in this forming hole, so that the consistent size with this forming hole can be reached, ensure its dimensional accuracy, and then ensure that it can meet requirement of experiment.
S7: described bone cement sample is separated with described extrusion and described molding assembly.
The object of this step is in order to by the demoulding of bone cement sample, to obtain complete bone cement sample.When being separated, first the length direction of described extrusion 30 along described ramming stem 22 can being separated with described ramming stem 22 from the bottom up, and then described ramming stem 22 is separated with described profiled member 21.Finally adopt described agitating element to beat the surface of described profiled member 21 gently, described bone cement sample can be separated with described forming hole, and then obtain complete bone cement sample, complete the demoulding of described bone cement sample.
Forming method provided by the invention, by adopt extrusion to bone cement mixed liquor carry out once extruded go out bone cement sample, thus make the production cycle of this bone cement sample shorter, while ensureing its molding effect, owing to adopting once extruded mode, can be just moulding by it when bone cement does not form dough period, and keep extruding to reduce the defects such as pore, make bone cement sample be more suitable for intensity test test.
Bone cement mould provided by the invention by forming a receiving space on thimble assembly, bone cement mixed liquor is stored in receiving space, then one end of molding assembly is assemblied in receiving space, extrusion is sheathed on molding assembly, by extruding this extrusion, make this extrusion can extrude bone cement mixed liquor, thus bone cement mixed liquor can be entered in molding assembly, and by extruded go out bone cement sample.Owing to adopting this extruded mode to be just that it is moulding when bone cement does not form dough period, and keep extruding to reduce the defects such as pore, thus make bone cement sample be more suitable for intensity test test.It is simple that this bone cement mould has structure, is convenient to extruded advantage.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (10)
1. a bone cement mould, for shaping bone cement sample, it is characterized in that, described bone cement mould comprises thimble assembly, molding assembly and extrusion, described thimble assembly comprises a receiving space, described receiving space is in order to store bone cement mixed liquor, one end of described molding assembly is assemblied in described receiving space, described extrusion is sheathed on the other end of described molding assembly, and described extrusion is for extruding described bone cement mixed liquor, enters described molding assembly to make described bone cement mixed liquor and molding described bone cement sample.
2. bone cement mould as claimed in claim 1, it is characterized in that, described thimble assembly comprises bottom and sleeve pipe, and described sleeve pipe is removably connected to described bottom, described receiving space is formed on described sleeve pipe, and described bottom forms the diapire of described receiving space.
3. bone cement mould as claimed in claim 2, it is characterized in that, described sleeve pipe is the cylindrical tube structure of hollow, and described sleeve pipe is threaded with described bottom.
4. bone cement mould as claimed in claim 2 or claim 3, it is characterized in that, described molding assembly comprises profiled member and ramming stem, and described profiled member part is assemblied in described receiving space, and one end of described ramming stem is removably connected to described profiled member.
5. bone cement mould as claimed in claim 4, it is characterized in that, described profiled member is cylindrical block structure, described profiled member offers screwed hole and at least one forming hole, described screwed hole is opened in the center of described profiled member, and the threaded one end of described ramming stem is connected to described screwed hole, and forming hole described at least one is arranged around described screwed hole, in order to fill described bone cement mixed liquor, with extruded go out described bone cement sample.
6. bone cement mould as claimed in claim 5, it is characterized in that, described bone cement mould also comprises pressing piece, described pressing piece is hollow tubular structure, described pressing piece is sheathed on described ramming stem one end away from described profiled member, for profiled member described in Manual press, to make described profiled member stretch into described receiving space, and the contiguous described bottom in one end of described profiled member is arranged.
7. bone cement mould as claimed in claim 6, it is characterized in that, described bone cement mould also comprises an agitating element, and described agitating element is in order to stir the bone cement mixed liquor in described receiving space.
8. a forming method, for molding bone cement sample, it is characterized in that, it comprises the following steps:
There is provided a thimble assembly, described thimble assembly comprises a receiving space, is added in the receiving space of described thimble assembly by described bone cement mixed liquor;
One molding assembly is provided, one end of described molding assembly is assemblied in described receiving space;
One extrusion is provided, described extrusion is sheathed on the other end of described molding assembly, and extrude described molding assembly, to enter in described molding assembly to make the bone cement mixed liquor in described receiving space and go out described bone cement sample by described extrusion extrusion forming;
Polymerizing curable is carried out to described bone cement sample.
9. the forming method of bone cement sample bone cement mould as claimed in claim 8, is characterized in that, provide a molding assembly in step, after one end of described molding assembly is assemblied in described receiving space, further comprising the steps of:
One pressing piece is provided, described pressing piece is sheathed on the other end of described molding assembly, and press described pressing piece, make one end of described molding assembly stretch to the diapire of described receiving space;
Described pressing piece is separated with described molding assembly.
10. the forming method of bone cement sample bone cement mould as claimed in claim 9, is characterized in that, in step to after carrying out polymerizing curable to described bone cement sample, further comprising the steps of:
Described thimble assembly is separated with described molding assembly;
Polished in the surface of described bone cement sample;
Described bone cement sample is separated with described extrusion and described molding assembly.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510292149.6A CN104908288A (en) | 2015-05-30 | 2015-05-30 | Bone cement forming mold and method |
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| CN201510292149.6A CN104908288A (en) | 2015-05-30 | 2015-05-30 | Bone cement forming mold and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111136766A (en) * | 2020-01-17 | 2020-05-12 | 北京万洁天元医疗器械股份有限公司 | Preparation device of bone cement test sample strip |
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| DE102005054479A1 (en) * | 2005-03-24 | 2006-09-28 | Fehling Ag | Method and device for producing spinal implants |
| CN203885590U (en) * | 2014-03-11 | 2014-10-22 | 苏州点合医疗科技有限公司 | Disposable bone cement shaping mould |
| CN204673985U (en) * | 2015-05-30 | 2015-09-30 | 中国科学院深圳先进技术研究院 | bone cement mould |
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| CN111136766A (en) * | 2020-01-17 | 2020-05-12 | 北京万洁天元医疗器械股份有限公司 | Preparation device of bone cement test sample strip |
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