CN114669227B - Preparation method of bone cement - Google Patents
Preparation method of bone cement Download PDFInfo
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- CN114669227B CN114669227B CN202210303616.0A CN202210303616A CN114669227B CN 114669227 B CN114669227 B CN 114669227B CN 202210303616 A CN202210303616 A CN 202210303616A CN 114669227 B CN114669227 B CN 114669227B
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- 239000002639 bone cement Substances 0.000 title claims abstract description 48
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 238000003756 stirring Methods 0.000 claims abstract description 94
- 239000007787 solid Substances 0.000 claims abstract description 50
- 239000007788 liquid Substances 0.000 claims abstract description 36
- 238000000034 method Methods 0.000 claims abstract description 27
- 239000000203 mixture Substances 0.000 claims description 18
- 239000000463 material Substances 0.000 description 10
- 239000013013 elastic material Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 4
- 210000000988 bone and bone Anatomy 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000000077 insect repellent Substances 0.000 description 2
- 230000000399 orthopedic effect Effects 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 102000008186 Collagen Human genes 0.000 description 1
- 108010035532 Collagen Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229920001436 collagen Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention relates to the technical field of bone cement, in particular to a preparation method of bone cement. A preparation method of bone cement, the device of the application method comprises a first mixer, the first mixer comprises a first cylinder, a first piston rod and a first stirring piece, the first cylinder is provided with a first outlet and a first inner cavity communicated with the first outlet; the method comprises the following steps: placing a first solid component of bone cement and a first stirring member in a first internal cavity; placing a first piston rod in the first inner cavity and stretching the first piston rod in a direction away from the first outlet to pass the liquid component through the first outlet into the first inner cavity and mix with the first solid component; the first piston rod is driven to drive the first stirring piece to move, and the first solid component and the liquid component are stirred by the first stirring piece to prepare the bone cement. The method provided by the invention can prevent a large amount of liquid components from volatilizing when mixing the solid components and the liquid components, and can rapidly and uniformly stir the components.
Description
Technical Field
The invention relates to the technical field of bone cement, in particular to a preparation method of bone cement.
Background
The bone cement is a bone binder commonly used in orthopedic surgery, and is prepared by mixing and stirring a solid component and a liquid component.
In the related art, after the orthopedic surgery is completed, bone cement needs to be prepared immediately to perform bone adhesion on related bones, however, the preparation of the bone cement needs to mix and stir solid components and liquid components, and in the mixing and stirring process, each component material is exposed in the air, so that the volatilization of the liquid components is increased, and thus, the bone cement is too dry and has poor fluidity, and further, the operation performance of the bone cement is poor.
Therefore, in view of the above disadvantages, a method for preparing bone cement is urgently needed.
Disclosure of Invention
The embodiment of the invention provides a preparation method of bone cement, which can prevent a large amount of liquid components from volatilizing when solid components and liquid components are mixed and can quickly and uniformly stir the components.
The invention provides a preparation method of bone cement.A device applying the method comprises a first mixer, wherein the first mixer comprises a first cylinder, a first piston rod and a first stirring piece, and the first cylinder is provided with a first outlet and a first inner cavity communicated with the first outlet;
the method comprises the following steps:
placing a first solid component of the bone cement and the first stirring member in the first lumen;
placing the first piston rod in the first lumen and stretching the first piston rod away from the first outlet to pass the liquid component through the first outlet into the first lumen and mix with the first solid component;
and driving the first piston rod to drive the first stirring piece to move, and stirring the first solid component and the liquid component by using the first stirring piece to prepare the bone cement.
Preferably, the first piston rod and the first stirring member are fixed, the first stirring member is a spring, the spring is helical, and the diameter of the circle surrounded by the spring is gradually increased along the direction from the first piston rod to the first outlet;
the driving the first piston rod to drive the first stirring piece to move comprises:
the first piston rod is pushed and pulled to drive the first stirring piece to stretch;
the first piston rod is rotated to drive the first stirring piece to rotate.
Preferably, the device further comprises a second mixer, the second mixer comprises a second cylinder, a second piston rod and a second stirring piece, the second cylinder is provided with a second outlet and a second inner cavity communicated with the second outlet;
the method further comprises the following steps:
placing a second solid component of the bone cement and the second stirring element in the second lumen;
placing the second piston rod in the second lumen;
communicating the first outlet with the second outlet;
and pushing and pulling the first piston rod and/or the second piston rod, so that the mixture of the first solid component and the liquid component is mixed with the second solid component to obtain the biological bone cement.
Preferably, the cross-sectional shape of the spring is a straight line or a cross in a direction perpendicular to the spiral direction of the spring.
Preferably, an internal thread is arranged at one end of the first cylinder body, which is far away from the first outlet, an external thread is arranged at one end of the first piston rod, which is far away from the first outlet, and the first piston rod is in threaded connection with the first cylinder body through the matching of the internal thread and the external thread;
the spring is compressed by rotating the first piston rod while the first piston rod and the first cylinder are threadedly connected.
Preferably, the outer surface of the first cylinder is provided with a scale.
Preferably, the second piston rod and the second stirring member are fixed, the second stirring member is a spring, the spring is helical, and the diameter of the circle surrounded by the spring gradually increases along the direction from the second piston rod to the second outlet.
Preferably, the cross-sectional shape of the spring is a straight line or a cross in a direction perpendicular to the spiral direction of the spring.
Preferably, an internal thread is arranged at one end, far away from the second outlet, of the second cylinder, an external thread is arranged at one end, far away from the second outlet, of the second piston rod, and the second piston rod is in threaded connection with the second cylinder through matching of the internal thread and the external thread;
the spring is compressed by rotating the second piston rod while the second piston rod and the second cylinder are threadedly connected.
Preferably, the outer surface of the second cylinder is provided with a scale.
Compared with the prior art, the invention at least has the following beneficial effects:
in the invention, the first solid component and the first stirring piece are firstly placed into the first inner cavity, and the first piston rod is placed into the first inner cavity, at the moment, the first solid component and the first stirring piece are positioned in a part of the first inner cavity between the first piston rod and the first outlet; moving the first piston rod in a direction away from the first outlet to draw the liquid component into the portion of the first chamber; the first piston rod of drive removes in first inner chamber, drives first stirring piece through first piston rod and moves, utilizes first stirring piece with first solid component and liquid component misce bene to accelerate first solid component and liquid component's mixing velocity, reduce the time of preparation bone cement, in addition, accelerate the mixing velocity of solid component and liquid component and can also reduce the liquid component that causes among the mixing process and volatilize.
In the invention, a part of the first inner cavity between the first piston rod and the first outlet is used for mixing the first solid component and the liquid component, and the first piston rod can slide in the first inner cavity and is tightly attached to the first inner cavity, so that the first piston rod can move in the first inner cavity and prevent substances in the first inner cavity from leaking from gaps between the first piston rod and the first inner cavity, and meanwhile, the first inner cavity is communicated with the atmosphere through the first outlet, so that the first piston rod can freely move in the first inner cavity. Therefore, part of the first inner cavity between the first piston rod and the first outlet is a semi-closed space, so that the free movement of the first piston rod can be ensured, and the liquid components can be prevented from being volatilized in a large amount.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a flow chart of a method for preparing bone cement according to an embodiment of the present invention;
FIG. 2 is a flow chart illustrating a method for preparing a biological bone cement according to an embodiment of the present invention;
FIG. 3 is a schematic view of a bone cement manufacturing apparatus according to an embodiment of the present invention;
FIG. 4 is a schematic view of an apparatus for preparing biological bone cement according to an embodiment of the present invention;
FIG. 5 is a schematic structural view of a first stirring member according to an embodiment of the present invention;
FIG. 6 is a schematic structural view of another first stirring member provided in the embodiment of the present invention;
in the figure:
1-a first mixer;
11-a first cylinder;
111-a first outlet;
112-a first lumen;
12-a first piston rod;
13-a first stirring member;
2-a second mixer;
21-a second cylinder;
211-a second outlet;
212-a second lumen;
22-a second piston rod;
23-a second stirring member;
3-a connector;
101-internal threads;
102-external thread.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer and more complete, the technical solutions in the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention, and based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the scope of the present invention.
In the description of the embodiments of the present invention, unless explicitly specified or limited otherwise, the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless otherwise specified or indicated; the terms "connected", "fixed", and the like are to be construed broadly and may, for example, be fixed or removable or integral or electrical; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, it should be understood that the terms "upper" and "lower" as used in the description of the embodiments of the present invention are used in the angle shown in the drawings, and should not be construed as limiting the embodiments of the present invention. In addition, in this context, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on "or" under "the other element or be indirectly on" or "under" the other element via an intermediate element.
As shown in fig. 1 and 3, the present invention provides a method for preparing bone cement, the device of the application method comprises a first mixer 1, the first mixer 1 comprises a first cylinder 11, a first piston rod 12 and a first stirring member 13, the first cylinder 11 has a first outlet 111 and a first inner cavity 112 communicated with the first outlet 111;
the method comprises the following steps:
placing the first solid component of bone cement and the first stirring member 13 in the first inner cavity 112;
placing first piston rod 12 in first interior cavity 112 and stretching first piston rod 12 away from first outlet 111 to pass the liquid component through first outlet 111 into first interior cavity 112 and mix with the first solid component;
the first piston rod 12 is driven to drive the first stirring member 13 to move, and the first solid component and the liquid component are stirred by the first stirring member 13 to prepare the bone cement.
In the present invention, the first solid component and the first stirring member 13 are first placed in the first inner cavity 112, and when the first piston rod 12 is placed in the first inner cavity 112, the first solid component and the first stirring member 13 are located in a portion of the first inner cavity 112 between the first piston rod 12 and the first outlet 111; moving the first piston rod 12 in a direction away from the first outlet 111 to draw the liquid component into the portion of the first interior cavity 112; the first piston rod 12 is driven to move in the first inner cavity 112, the first stirring piece 13 is driven to move through the first piston rod 12, the first solid component and the liquid component are uniformly mixed by using the first stirring piece 13, so that the mixing speed of the first solid component and the liquid component is increased, the time for preparing bone cement is shortened, and in addition, the volatilization of the liquid component caused in the mixing process can also be reduced by increasing the mixing speed of the solid component and the liquid component.
In the present invention, a portion of the first inner cavity 112 between the first piston rod 12 and the first outlet 111 is used for mixing the first solid component and the liquid component, and the first piston rod 12 can slide in the first inner cavity 112 while they are closely attached, so that the first piston rod 12 can move in the first inner cavity 112 and prevent the substance in the first inner cavity 112 from leaking out from the gap between the first inner cavity 112 and the first inner cavity 112 is communicated with the atmosphere through the first outlet 111, and the first piston rod 12 can move freely in the first inner cavity 112. Therefore, a part of the first inner cavity 112 between the first piston rod 12 and the first outlet 111 is a semi-closed space, which can ensure the free movement of the first piston rod 12 and prevent the liquid from volatilizing in a large amount.
According to some preferred embodiments, the first piston rod 12 and the first stirring member 13 are fixed, the first stirring member 13 is a spring, the spring is helical, and the diameter of the circle surrounded by the spring gradually increases along the direction of the first piston rod 12 towards the first outlet 111;
driving the first piston rod 12 to move the first stirring member 13 includes:
the first piston rod 12 is pushed and pulled to drive the first stirring piece 13 to stretch;
the first piston rod 12 is rotated to rotate the first stirring member 13.
In the invention, the first piston rod 12 and the first stirring part 13 are fixed, and the first piston rod 12 is driven to drive the first stirring part 13 to move, so that the first stirring part 13 can stretch or rotate by pushing and pulling or rotating the first piston rod 12, and the stirring operation is simpler, more convenient and faster.
In the present invention, the first stirring member 13 is a spring, the spring is longer in a stretched state, the stirring action range is large, the stirring speed can be increased, the length of the spring is short in a contracted state, the minimum distance between the first piston rod 12 and the first outlet 111 can be shortened, further more materials can be discharged from the first outlet 111 by driving the first piston rod 12 to move towards the first outlet 111, and more materials can be sucked into the first inner cavity 112 by driving the first piston rod 12 to move away from the first outlet 111 after compressing the spring.
It is understood that the first stirring bar 13 may be made of other elastic materials, and the effect of stirring may be increased by the elasticity of the materials.
In the invention, the spring is spiral, and the diameter of the circle surrounded by the spring is gradually increased towards the first outlet 111, so that the spring can be compressed to the same plane and is in a mosquito-repellent incense shape, the spring does not occupy the space of the first inner cavity 112 after being compressed, all materials in the first inner cavity 112 can be discharged, and more materials can be sucked.
As shown in fig. 2 and 4, according to some preferred embodiments, the device further comprises a second mixer 2, the second mixer 2 comprises a second cylinder 21, a second piston rod 22 and a second stirring member 23, the second cylinder 21 has a second outlet 211 and a second inner cavity 212 communicated with the second outlet 211;
the method further comprises the following steps:
placing the second solid component of bone cement and the second stirring member 23 in the second inner cavity 212;
placing the second piston rod 22 in the second lumen 212;
the first outlet 111 and the second outlet 211 are communicated;
the first piston rod 12 and/or the second piston rod 22 are pushed and pulled so that the mixture of the first solid component and the liquid component is mixed with the second solid component to obtain the biological cement.
In the present invention, the second solid component of the bone cement and the second stirring member 23 are placed in the second inner chamber 212, then the second piston rod 22 is placed in the second inner chamber 212, and the first outlet 111 and the second outlet 211 are communicated, so that the second solid component in the second inner chamber 212 is mixed with the mixture in the first inner chamber 112, which is composed of the first solid component and the liquid component. The mixture is mixed with the second solid component by pushing and pulling the first piston rod 12 and/or the second piston rod 22 to obtain the biological cement.
In the present invention, after the first outlet 111 and the second outlet 211 are communicated, the first piston rod 12 is driven to move towards the first outlet 111 or the second piston rod 22 is driven to move away from the second outlet 211, so that the mixture (obtained by mixing the first solid component and the liquid component) in the first inner cavity 112 enters the second inner cavity 212, and in the process of entering the second inner cavity 212, the first stirring member 13 is driven by the first piston rod 12 to stir the mixture in the first inner cavity 112; after entering the second inner cavity 212, the mixture is mixed with the second component, at this time, the first piston rod 12 is driven to move away from the first outlet 111 or the second piston rod 22 is driven to move towards the second outlet 211, the second piston rod 22 drives the second stirring member 23 to stir the mixture and the second solid component, and the mixture and the second solid component enter the first inner cavity 112; the first piston rod 12 or the second piston rod 22 is repeatedly driven to perform the piston motion, so that the mixture and the second solid component are stirred by the first stirring member 13 and the second stirring member 23 and reciprocate in the first inner cavity 112 and the second inner cavity 212, and the mixture and the second solid component are rapidly and uniformly mixed to obtain the biological type bone cement. In the whole stirring process, the mixture and the second solid component are mixed in the closed space formed by the first inner cavity 112 and the second inner cavity 212, the exchange of substances with the outside is avoided, the liquid component is not volatilized in the stirring process, and the fluidity and the operability of the prepared biological bone cement are ensured.
In the present invention, the connector 3 may be used to communicate the first outlet 111 with the second outlet 211, or the first outlet 111 and the second outlet 211 may be provided with screw threads to communicate the first outlet 111 with the second outlet 211 by screw-fitting.
The second solid component includes a biological component, such as mineralized collagen powder, and after the first solid component and the liquid component are fully mixed and react to obtain a mixture, the mixture and the second solid component are stirred and mixed, and the biological bone cement is obtained after uniform mixing. The preparation method of the biological bone cement provided by the invention can be used for preparing the polymethyl methacrylate bone cement disclosed in the patent with the application number of CN201810084359.
According to some preferred embodiments, the cross-sectional shape of the spring, in a direction perpendicular to the direction of the coils of the spring, is a straight line or a cross, as shown in fig. 5-6.
In the present invention, the cross-sectional shape of the spring is in a straight line in a direction perpendicular to the spiral direction of the spring, and the arrangement is such that the spring is formed by a spiral of the sheet-like elastic material, and the stirring force generated by the sheet-like spring is greater when the driving spring is moved, so that the mixing speed of the components is faster.
In the invention, the cross-section of the spring is in a cross shape in the direction perpendicular to the spiral direction of the spring, and the spring is arranged in a manner that the spring is formed by a cross-shaped elastic material spiral, so that when the driving spring moves, the cross-shaped spring can generate larger stirring force in two directions during pushing, pulling and rotating, and the mixing speed of each component is higher.
According to some preferred embodiments, the end of the first cylinder 11 away from the first outlet 111 is provided with an internal thread 101, the end of the first piston rod 12 away from the first outlet 111 is provided with an external thread 102, and the first piston rod 12 is in threaded connection with the first cylinder 11 through the cooperation of the internal thread 101 and the external thread 102;
when the first piston rod 12 and the first cylinder 11 are screwed, the spring is compressed by rotating the first piston rod 12.
In the present invention, as the first piston rod 12 is pushed toward the first outlet 111, the spring force of the spring is gradually increased, and the first piston rod 12 is continuously moved toward the first outlet 111 against the spring force by the thread engagement of the internal thread 101 and the external thread 102. In addition, the first piston rod 12 can be fixed to the first cylinder 11 against the spring force by the engagement of the internal thread 101 and the external thread 102.
Of course, the first piston rod 12 may be driven to move toward the first outlet 111 against the spring force by applying an external force, but it is more labor-saving by the screw-fitting.
According to some preferred embodiments, the outer surface of the first barrel 11 is provided with a scale.
In the present invention, the scale is provided on the first cylinder 11, so that the components entering and discharging from the first inner cavity 112 can be controlled more precisely.
According to some preferred embodiments, the second piston rod 22 and the second stirring member 23 are fixed, the second stirring member 23 is a spring, the spring is helical, and the diameter of the circle surrounded by the spring gradually increases along the direction of the second piston rod 22 towards the second outlet 211.
It is understood that the second stirring bar 23 may be made of other elastic materials, and the stirring effect may be increased by the elasticity of the materials.
In the invention, the spring is spiral, and the diameter of the circle surrounded by the spring is gradually increased towards the second outlet 211, so that the spring can be compressed to the same plane and is in a mosquito-repellent incense shape, the spring does not occupy the space of the second inner cavity 212 after being compressed, all materials in the second inner cavity 212 can be discharged, and more materials can be sucked.
In the invention, the second stirring piece 23 is fixed on the second piston rod 22, so that the second stirring piece 23 can synchronously rotate by rotating the second piston rod 22, and the second stirring piece 23 can synchronously advance and retreat in the second inner cavity 212 by pushing and pulling the second piston rod 22, so that the stirring operation is simpler, more convenient and faster.
It should be noted that, in the process of driving the first piston rod 12 and the second piston rod 22 to move, rotating the first piston rod 12 and the second piston rod 22 can further improve the stirring effect and reduce the stirring time.
According to some preferred embodiments, the second stirring member has the same characteristics as the first stirring member, and the cross-sectional shape of the spring is a straight line or a cross in a direction perpendicular to the spiral direction of the spring, as shown in FIGS. 5 to 6.
In the present invention, the cross-sectional shape of the spring in the direction perpendicular to the spiral direction of the spring is in a straight line, and the arrangement is such that the spring is formed by a spiral of the sheet-like elastic material, and when the driving spring is moved, the stirring force generated by the sheet-like spring is larger, so that the mixing speed of the material components in the second chamber is faster.
In the invention, the cross-section of the spring is in a cross shape in the direction perpendicular to the spiral direction of the spring, and the spring is arranged in a manner that the spring is formed by a cross-shaped elastic material spiral, so that when the driving spring moves, the cross-shaped spring can generate larger stirring force in two directions during pushing, pulling and rotating, and the mixing speed of the substance components in the second inner cavity is higher.
According to some preferred embodiments, the end of the second cylinder 21 away from the second outlet 211 is provided with an internal thread 101, the end of the second piston rod 22 away from the second outlet 211 is provided with an external thread 102, and the second piston rod 22 is in threaded connection with the second cylinder 21 through the matching of the internal thread 101 and the external thread 102;
when the second piston rod 22 and the second cylinder 21 are screwed, the spring is compressed by rotating the second piston rod 22.
In the present invention, as the second piston rod 22 is pushed toward the second outlet 211, the elastic force of the spring is gradually increased, and the second piston rod 22 is continuously moved toward the second outlet 211 against the elastic force of the spring by the thread engagement of the internal thread 101 and the external thread 102. In addition, the second piston rod 22 can be fixed to the second cylinder 21 against the spring force by the engagement of the internal thread 101 and the external thread 102.
Of course, the second piston rod 22 can be driven to move toward the second outlet 211 by applying an external force against the spring force, but the screw thread fit is more labor-saving.
According to some preferred embodiments, the outer surface of the second cylinder 21 is provided with a scale.
In the present invention, the scales are provided on the second cylinder 21, so that the components entering and discharging from the second cavity 212 can be controlled more precisely.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. A method for preparing bone cement, characterized in that the device applying the method comprises a first mixer (1), the first mixer (1) comprising a first cylinder (11), a first piston rod (12) and a first stirring element (13), the first cylinder (11) having a first outlet (111) and a first inner cavity (112) communicating with the first outlet (111);
the first piston rod (12) and the first stirring piece (13) are fixed, the first stirring piece (13) is a spring, the spring is spiral, and the diameter of a circle surrounded by the spring is gradually increased along the direction of the first piston rod (12) pointing to the first outlet (111);
in the direction perpendicular to the spiral direction of the spring, the cross section of the spring is in a cross shape;
the device further comprises a second mixer (2), wherein the second mixer (2) comprises a second cylinder (21), a second piston rod (22) and a second stirring piece (23), the second cylinder (21) is provided with a second outlet (211) and a second inner cavity (212) communicated with the second outlet (211);
the method comprises the following steps:
placing a first solid component of the bone cement and the first stirring element (13) in the first inner cavity (112);
-placing the first piston rod (12) in the first inner cavity (112) and stretching the first piston rod (12) away from the first outlet (111) to introduce the liquid component into the first inner cavity (112) through the first outlet (111) and mix with the first solid component;
driving the first piston rod (12) to drive the first stirring piece (13) to move, and stirring the first solid component and the liquid component by using the first stirring piece (13) to prepare bone cement;
placing the second solid component of bone cement and the second stirring element (23) in the second lumen (212);
placing the second piston rod (22) in the second lumen (212);
communicating the first outlet (111) and the second outlet (211);
-pushing and pulling said first piston rod (12) and/or said second piston rod (22) such that the mixture of said first solid component and said liquid component is mixed with said second solid component to obtain the biological bone cement.
2. Method for the preparation of bone cement according to claim 1, wherein said driving of said first piston rod (12) to move said first stirring element (13) comprises:
the first piston rod (12) is pushed and pulled to drive the first stirring piece (13) to stretch and retract;
the first piston rod (12) is rotated to drive the first stirring piece (13) to rotate.
3. The preparation method of bone cement according to claim 1, wherein an end of the first cylinder (11) far away from the first outlet (111) is provided with an internal thread (101), an end of the first piston rod (12) far away from the first outlet (111) is provided with an external thread (102), and the first piston rod (12) is in threaded connection with the first cylinder (11) through the matching of the internal thread (101) and the external thread (102);
-compressing the spring by rotating the first piston rod (12) when the first piston rod (12) and the first cylinder (11) are threadedly connected.
4. Method for the preparation of bone cement according to claim 1, characterized in that the outer surface of the first cylinder (11) is provided with graduations.
5. The method for preparing bone cement according to claim 1, wherein the second piston rod (22) and the second stirring member (23) are fixed, the second stirring member (23) is a spring, the spring is helical, and the diameter of the circle surrounded by the spring gradually increases along the direction of the second piston rod (22) towards the second outlet (211).
6. The preparation method of the bone cement is characterized in that one end of the second cylinder (21) far away from the second outlet (211) is provided with an internal thread (101), one end of the second piston rod (22) far away from the second outlet (211) is provided with an external thread (102), and the second piston rod (22) is in threaded connection with the second cylinder (21) through the matching of the internal thread (101) and the external thread (102);
-compressing the spring by rotating the second piston rod (22) when the second piston rod (22) and the second cylinder (21) are screwed.
7. The method for the preparation of bone cement according to claim 1, characterized in that the outer surface of the second cylinder (21) is provided with graduations.
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| CN202210303616.0A CN114669227B (en) | 2022-03-24 | 2022-03-24 | Preparation method of bone cement |
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| CN202210303616.0A CN114669227B (en) | 2022-03-24 | 2022-03-24 | Preparation method of bone cement |
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| CN209957451U (en) * | 2019-05-12 | 2020-01-17 | 广东江昊环保科技有限公司 | Dynamic mixer |
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| US7135027B2 (en) * | 2002-10-04 | 2006-11-14 | Baxter International, Inc. | Devices and methods for mixing and extruding medically useful compositions |
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