Bone cement mixing and dispensing components, equipment, and methods for mixing and dispensing bone cement.

Abstract

This application discloses a bone cement mixing and injection assembly, a bone cement mixing and injection device, and a bone cement mixing and injection method. The bone cement mixing and injection assembly includes a housing and a mixing and injection mechanism. The housing includes a receiving cavity for receiving bone cement components, and a first end of the housing has an injection port communicating with the receiving cavity. The mixing and injection mechanism includes a mixing element, a injection element, and a driving element. The injection element is disposed within the receiving cavity, and the mixing element is disposed between the injection element and the injection port. The driving element receives a first driving force from a power mechanism to drive the mixing element to rotate and mix the bone cement components to prepare a bone cement mixture. The driving element also receives a second driving force from the power mechanism to drive the injection element to move in a direction toward the injection port, injecting the bone cement mixture into the bone through the injection port. The bone cement mixing and injection assembly provided in this application can simultaneously realize the mixing of bone cement components and the injection of the bone cement mixture, effectively improving the efficiency of orthopedic surgery.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to a bone cement mixing and injection assembly, equipment, and method for mixing and injecting bone cement. Background Technology

[0002] Bone cement is a commonly used adhesive in orthopedic surgery. In clinical use, it needs to be mixed with liquid and stirred to allow the cement and liquid to polymerize and form a viscous, dough-like substance. Then, before the bone cement completely hardens, the surgeon infuses it into the patient's body, thus fulfilling its clinical function.

[0003] Currently, in clinical practice, the mixing and infusion of bone cement are performed separately. First, the bone cement components are mixed using a mixing device to form a bone cement mixture. Then, the bone cement mixture is transferred to an injection device, which is used to inject the bone cement into the patient. This method of separating the mixing and injection of bone cement involves many steps, significantly reducing the efficiency of the surgery. Summary of the Invention

[0004] This application provides a bone cement mixing and injection component, device, and method, aiming to solve the problem that existing bone cement mixing, transfer, and infusion procedures involve many steps, which greatly reduces surgical efficiency.

[0005] This application provides a bone cement mixing and injection assembly, including a housing and a mixing and injection mechanism. The housing includes a first end and a second end opposite to each other. The housing includes a first end cap located at the first end, a second end cap located at the second end, and a cylindrical body extending between the first end and the second end. The cylindrical body has a first opening formed at the first end. The first end cap is movably connected to the cylindrical body to open or close the first opening. The first end cap, the second end cap, and the cylindrical body together form a receiving cavity for receiving bone cement components. The first end cap has an injection port communicating with the receiving cavity.

[0006] The stirring and injecting mechanism includes a stirring component, an injecting component, and a driving component. The injecting component is disposed in the receiving cavity and is sealed to the inner circumferential surface of the cylinder. The injecting component can move in the direction toward the injection port. The stirring component is disposed between the injecting component and the injection port and is detachably connected to the injecting component.

[0007] The drive unit passes through the second end cap and is threadedly connected to the second end cap. One end of the drive unit is connected to the injection component, and the other end of the drive unit is used to receive the first driving force and the second driving force of the power mechanism.

[0008] The driving component is used to reciprocate spirally relative to the second end cap under the drive of the first driving force, thereby driving the injection component and the stirring component to reciprocate spirally to stir the bone cement components and prepare a bone cement mixture.

[0009] The driving member is used to rotate in a unidirectional spiral relative to the second end cap under the drive of the second driving force, thereby driving the injection member to move in the direction toward the injection port, so as to inject the bone cement mixture into the bone through the injection port;

[0010] The first end cap is also provided with a hook, which is located in the receiving cavity. When the driving member drives the stirring member to rotate, the hook can engage with the stirring member to separate the stirring member from the injection member.

[0011] This application embodiment also provides a bone cement mixing and dispensing assembly, including a housing and a mixing and dispensing mechanism. The housing includes an inner surface, and the inner surface forms a receiving cavity for receiving bone cement components. A first end of the housing forms an injection port communicating with the receiving cavity.

[0012] The stirring and injecting mechanism includes a stirring component, an injecting component, and a driving component. The injecting component is disposed within the receiving cavity, and the stirring component is disposed between the injecting component and the injection port. The driving component is used to receive a first driving force from the power mechanism to drive the stirring component to rotate and stir the bone cement components to prepare a bone cement mixture. The driving component is also used to receive a second driving force from the power mechanism to drive the injecting component to move in a direction toward the injection port so as to inject the bone cement mixture into the bone through the injection port.

[0013] This application embodiment also provides a bone cement mixing and dispensing assembly, including a housing and a mixing and dispensing mechanism. The housing includes an inner surface, and the inner surface forms a receiving cavity for receiving bone cement components. One end of the housing forms an injection port communicating with the receiving cavity.

[0014] The stirring and injecting mechanism includes a stirring component, an injecting component, and a driving component. The injecting component is disposed within the receiving cavity, and the stirring component is disposed between the injecting component and the injection port, and the stirring component is connected to the injecting component. The driving component is used to drive the injecting component to rotate, thereby rotating the stirring component to stir the bone cement components and prepare a bone cement mixture. The driving component is also used to drive the injecting component to move in a direction toward the injection port, so as to inject the bone cement mixture into the bone through the injection port.

[0015] In some embodiments, the stirring element includes at least one spring, the deformation direction of which is consistent with the direction in which the injection element moves toward the injection port; the spring includes a constant diameter spring and / or a variable diameter spring.

[0016] In some embodiments, the outer diameter of the variable diameter spring first increases and then decreases in the direction in which the injection member moves toward the injection port.

[0017] In some embodiments, the stirring element includes a plurality of springs; the springs are connected to the side of the injection element near the injection port.

[0018] In some embodiments, the agitator and the injection device are detachably connected, wherein the agitator agitates the bone cement component during a first time period, and the agitator and the injection device are connected during at least a portion of the first time period; the injection device injects the bone cement mixture into the bone through the injection port during a second time period, and the agitator and the injection device are separated during at least a portion of the second time period.

[0019] In some embodiments, the stirring member is threadedly connected to the injection member, and the driving member is further configured to drive the injection member to rotate relative to the stirring member, so that the injection member is disengaged from the stirring member.

[0020] In some embodiments, the injection member has a threaded hole on the side facing the injection port, the stirring member includes a stirring part and a threaded rod connected to each other, the threaded rod is inserted into the threaded hole and threadedly connected to the inner surface of the threaded hole, and the driving member is used to drive the injection member to rotate relative to the stirring member so that the threaded rod is screwed out from the threaded hole.

[0021] In some embodiments, the housing is provided with a hook located within the receiving cavity, the hook being capable of engaging with the stirring member so that when the driving member drives the injection member to rotate and / or move in a direction away from the injection port, the stirring member separates from the injection member.

[0022] In some embodiments, the inner surface includes an inner peripheral surface that seals with the injection member and a first end face located at the first end of the housing, the injection port passing through the first end face and communicating with the receiving cavity; the hook extends from the first end face toward the stirring member, and the hook is spaced apart from the inner peripheral surface.

[0023] In some embodiments, the inner surface includes an inner circumferential surface that seals with the injection member; the hook includes a connecting portion connected to the inner circumferential surface, and a hook portion extending from the connecting portion toward the stirring member, the hook portion being spaced apart from the inner circumferential surface.

[0024] In some embodiments, the housing is detachably connected to a support component of the power mechanism; the drive member is detachably connected to a power component of the power mechanism, the drive member receiving a first driving force from the power component to drive the stirring member to rotate and stir the bone cement components to prepare a bone cement mixture; or, the drive member receiving a second driving force from the power component to drive the injection member to move in a direction toward the injection port to inject the bone cement mixture into the bone through the injection port.

[0025] In some embodiments, the housing includes a second end opposite to the first end, the second end being detachably connected to the support member; and / or, the drive member passes through the second end of the housing, one end of the drive member being connected to the injection member, and the other end of the drive member being detachably connected to the power member.

[0026] In some embodiments, the housing includes a cylindrical body extending between the first end and the second end, a first end cap located at the first end, and a second end cap located at the second end;

[0027] The inner surface includes an inner circumferential surface located inside the cylinder, a first end face located on the first end cap, and a second end face located on the second end cap. The inner circumferential surface, the first end face, and the second end face enclose the receiving cavity.

[0028] The first end cap has the injection port, the injection member is sealed to the inner circumferential surface and can move along the extension direction of the cylinder, the driving member passes through the second end cap, and the second end cap is used for detachable connection with the support member.

[0029] In some embodiments, the driving member is threadedly connected to the second end, and the driving member is used to reciprocate spirally relative to the second end under the drive of the first driving force to drive the stirring member to rotate; the driving member is also used to rotate unidirectionally spirally relative to the second end under the drive of the second driving force to drive the injection member to move in the direction toward the injection port.

[0030] In some embodiments, the outer peripheral surface of the second end is provided with a protrusion, and the second end is used to insert into a mounting groove on the support member. The protrusion is used to insert into a limiting groove on the inner peripheral surface of the mounting groove, so that the housing and the support member are detachably connected; and / or,

[0031] The driving component includes a driving part, which is slidably mounted in the transmission hole of the rotating part of the power component. When the rotating part rotates around the rotation axis, it can drive the driving part to rotate synchronously around the rotation axis. The driving part can move along the rotation axis in the transmission hole so that the driving part can drive the stirring part to rotate and drive the injection part to move in a direction toward or away from the injection port.

[0032] In some embodiments, the number of protrusions is plurality, and the plurality of protrusions are distributed sequentially along the circumference of the second end; and / or,

[0033] The cross-sectional shape of the drive unit in the direction perpendicular to the direction of movement of the drive unit within the transmission hole is polygonal or quincunx-shaped.

[0034] In some embodiments, the cylinder has a first opening at the first end, and the first end cap is movably connected to the cylinder to open or close the first opening; and / or, the cylinder has a second opening at the second end, and the second end cap is detachably connected to the cylinder to open or close the second opening.

[0035] In some embodiments, the bone cement mixing and dispensing assembly further includes a feeding funnel, the nozzle of which is inserted into the first opening to allow the bone cement components to enter the receiving cavity through the feeding funnel.

[0036] This application embodiment also provides a bone cement mixing and dispensing device, including:

[0037] A bone cement mixing and injection assembly, as described above, comprises a housing and a mixing and injection mechanism. The housing includes an inner surface with a cavity for receiving bone cement components. A first end of the housing has an injection port communicating with the cavity. The mixing and injection mechanism includes a mixing element, a injection element, and a driving element. The injection element is disposed within the cavity, and the mixing element is disposed between the injection element and the injection port. The driving element receives a first driving force from a power mechanism to drive the mixing element to rotate and mix the bone cement components, preparing a bone cement mixture. The driving element also receives a second driving force from the power mechanism to drive the injection element to move toward the injection port, injecting the bone cement mixture into the bone through the injection port.

[0038] A power mechanism is provided, which is connected to the drive component of the bone cement mixing and injection assembly. The power mechanism applies a first driving force to the drive component and drives the mixing component to stir the bone cement components in the receiving cavity of the bone cement mixing and injection assembly to prepare a bone cement mixture. The power mechanism is also used to apply a second driving force to the drive component and drive the injection component of the bone cement mixing and injection assembly to move in a direction toward the injection port so as to inject the bone cement mixture into the bone through the injection port.

[0039] In some embodiments, the drive member is threadedly connected to the second end of the housing away from the injection port, and the first driving force applied by the power mechanism is used to drive the drive member to reciprocate in a spiral rotation, thereby driving the stirring member to reciprocate in a spiral rotation to stir the bone cement components; the second driving force applied by the power mechanism is used to drive the drive member to rotate in a unidirectional spiral rotation, thereby driving the injection member to move in a direction toward the injection port.

[0040] In some embodiments, the power mechanism includes a support component and a power component, the support component being detachably connected to the housing of the bone cement mixing and dispensing assembly; the power component being detachably connected to the drive component and being used to apply the first driving force and the second driving force to the drive component.

[0041] In some embodiments, the support member includes a mounting groove, the inner circumferential surface of which is provided with a limiting groove, and a second end of the housing of the bone cement mixing and dispensing assembly is used to insert into the mounting groove, so that the housing is detachably connected to the support member; and / or,

[0042] The power component includes a rotating member capable of rotating around a rotation axis. The rotating member has a transmission hole. The driving part of the driving member is slidably installed in the transmission hole. When the rotating member rotates around the rotation axis, it can drive the driving member to rotate synchronously around the rotation axis. The driving part can move along the rotation axis within the transmission hole.

[0043] This application embodiment also provides a method for mixing and dispensing bone cement, the method being used in a bone cement mixing and dispensing device, the method comprising:

[0044] After the bone cement components are received in the receiving cavity of the bone cement mixing and dispensing assembly of the bone cement mixing and dispensing equipment, a first driving force is applied to the driving component of the bone cement mixing and dispensing assembly through the power mechanism of the bone cement mixing and dispensing equipment, so that the driving component drives the mixing component located in the receiving cavity to rotate to mix the bone cement components and prepare a bone cement mixture.

[0045] The power mechanism applies a second driving force to the drive member, causing the drive member to move the injection member located in the receiving cavity in the direction toward the injection port, so as to inject the bone cement mixture into the bone through the injection port.

[0046] In some embodiments, the drive member is threadedly connected to the second end of the housing away from the injection port; the drive member of the bone cement mixing and dispensing assembly is subjected to a first driving force by the power mechanism of the bone cement mixing and dispensing device, causing the drive member to drive the mixing member disposed in the receiving cavity to rotate to mix the bone cement components, thereby preparing a bone cement mixture, comprising:

[0047] The power mechanism of the bone cement mixing and dispensing device applies a first driving force to the drive component of the bone cement mixing and dispensing assembly, driving the drive component to reciprocate in a spiral rotation, which in turn drives the mixing component in the receiving cavity to reciprocate in a spiral rotation to mix the bone cement components and prepare a bone cement mixture.

[0048] In some embodiments, applying a second driving force to the drive member via the power mechanism, causing the drive member to move the injection member disposed within the receiving cavity in a direction toward the injection port, so as to inject the bone cement mixture into the bone through the injection port, includes:

[0049] The power mechanism applies a second driving force to the drive member, driving the drive member to rotate in a unidirectional spiral, which in turn moves the injection member toward the injection port, so as to inject the bone cement mixture into the bone through the injection port.

[0050] In some embodiments, the stirring element and the dispensing element are detachably connected; before applying the second driving force to the driving element via the power mechanism, the method further includes:

[0051] The power mechanism applies a third driving force to the driving member, driving the driving member to move the injection member and the stirring member in the direction toward the injection port, so that the stirring member hooks with the hook in the receiving cavity;

[0052] The power mechanism applies a fourth driving force to the driving member, driving the driving member to move the injection member away from the injection port, thereby separating the stirring member from the injection member.

[0053] The bone cement mixing and injection assembly provided in this embodiment places the injection component within a receiving cavity and places a stirring component between the injection component and the injection port. This allows the driving component to receive a first driving force from the power mechanism and drive the stirring component to rotate, thereby mixing the bone cement components and completing the preparation of the bone cement mixture. Furthermore, the driving component can also receive a second driving force from the power mechanism, driving the injection component to move towards the injection port, injecting the bone cement mixture into the bones of a human or animal body through the injection port, thus completing the injection of the bone cement mixture.

[0054] Therefore, the bone cement mixing and dispensing assembly provided in this application embodiment can simultaneously realize the mixing of bone cement components and the dispensing of bone cement mixture, without the need to transfer the bone cement mixture formed by mixing bone cement components, making the operation simpler and effectively improving the efficiency of orthopedic surgery. Attached Figure Description

[0055] The technical solution and other beneficial effects of this application will become apparent from the following detailed description of specific embodiments in conjunction with the accompanying drawings.

[0056] Figure 1 A cross-sectional view of one embodiment of the bone cement mixing and dispensing assembly provided in this application, which is viewed along the axial direction of the drive member;

[0057] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0058] Figure 3 A three-dimensional structural diagram of the bone cement mixing and dispensing assembly provided in an embodiment of this application;

[0059] Figure 4 A cross-sectional view of another embodiment of the bone cement mixing and dispensing assembly provided in this application;

[0060] Figure 5 A cross-sectional view of yet another embodiment of the bone cement mixing and dispensing assembly provided in this application;

[0061] Figure 6 This is another perspective view of the three-dimensional structure of the bone cement mixing and dispensing assembly provided in the embodiment of this application;

[0062] Figure 7 Another angle view of yet another embodiment of the bone cement mixing and dispensing assembly provided in this application;

[0063] Figure 8 A schematic diagram of one embodiment of the bone cement mixing and dispensing device provided in this application;

[0064] Figure 9A schematic diagram of the structure of one embodiment of the power mechanism provided in this application;

[0065] Figure 10 A schematic diagram of one embodiment of the power mechanism, bone cement mixing and dispensing assembly, feeding funnel, bone cement powder packaging, and liquid packaging provided in this application;

[0066] Figure 11 A schematic diagram of the cooperation structure between the power mechanism and the bone cement mixing and dispensing assembly provided in the embodiments of this application;

[0067] Figure 12 for Figure 11 The sectional view in the figure is sectional along the axis of rotation;

[0068] Figure 13 This is a flowchart of one embodiment of the bone cement mixing and dispensing method provided in this application.

[0069] Bone cement mixing and dispensing equipment 10; bone cement mixing and dispensing assembly 100; shell 110; inner surface 1100; inner circumferential surface 1101; first end face 1102; second end face 1103; receiving cavity 1104; first end 1105; second end 1106; cylinder 111; first opening 1111; second opening 1112; connecting end 1113; first end cap 112; injection port 1121; hook 1122; connecting part 1122a; hook part 1122b; second end cap 113; protrusion 1131; connecting hole 1132; mixing and dispensing mechanism 12 0; Stirring component 121; Equal diameter spring 1210a; Variable diameter spring 1210b; Stirring part 1211; Threaded rod 1212; Injection part 122; Threaded hole 1221; Seal 1222; Drive component 123; Drive part 1231; Drive part 1231a; Injection pipeline 130; Feeding funnel 140; Nozzle 141; Power mechanism 200; Support component 210; Mounting groove 211; Limiting groove 2110; Power component 220; Rotating component 221; Transmission hole 2210; Rotation axis X; Bone cement powder packaging 300; Liquid packaging 400. Detailed Implementation

[0070] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0071] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0072] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0073] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0074] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0075] This application provides a bone cement mixing and dispensing assembly, a bone cement mixing and dispensing device, and a bone cement mixing and dispensing method. These will be described in detail below.

[0076] First, this application provides a bone cement mixing and dispensing assembly.

[0077] Figure 1 This is a schematic diagram of one embodiment of the bone cement mixing and dispensing assembly provided in this application. Figure 1 As shown, the bone cement mixing and dispensing assembly 100 includes a housing 110 and a mixing and dispensing mechanism 120. The housing 110 includes an inner surface 1100, and the inner surface 1100 forms a receiving cavity 1104 for receiving bone cement components. A first end 1105 of the housing 110 forms an injection port 1121 communicating with the receiving cavity 1104. The mixing and dispensing mechanism 120 is used to mix the bone cement components in the receiving cavity 1104 to prepare a bone cement mixture. The mixing and dispensing mechanism 120 is also used to inject the bone cement mixture in the receiving cavity 1104 into the bone of a human or animal body through the injection port 1121.

[0078] The injection port 1121 of the housing 110 can be connected to one end of the injection tubing 130, and the other end of the injection tubing 130 can be inserted into the bone of a human or animal body, so that the mixing and injection mechanism 120 can inject the bone cement mixture in the receiving cavity 1104 into the bone of the human or animal body through the injection port 1121. Alternatively, the injection port 1121 of the housing 110 can be directly inserted into the bone of a human or animal body, so that the mixing and injection mechanism 120 can inject the bone cement mixture in the receiving cavity 1104 into the bone of the human or animal body through the injection port 1121.

[0079] The bone cement component includes bone cement powder and liquid. Placing the bone cement component in the receiving cavity 1104 of the housing 110 means that the bone cement powder and liquid are placed separately in the receiving cavity 1104 of the housing 110. The stirring and dispensing mechanism 120 is used to stir the bone cement component in the receiving cavity 1104 to prepare the bone cement mixture. This means that the stirring and dispensing mechanism 120 is used to mix and stir the bone cement powder and liquid in the receiving cavity 1104, causing the mixture of bone cement powder and liquid to react and form a bone cement mixture. Before the bone cement component powder and liquid are placed in the receiving cavity 1104 of the housing 110, such as... Figure 10 As shown, bone cement powder is contained in bone cement powder package 300, and liquid is contained in liquid package 400.

[0080] In some embodiments, the stirring and injecting mechanism 120 includes a stirring member 121, an injecting member 122, and a driving member 123. The injecting member 122 is disposed within the receiving cavity 1104, and the stirring member 121 is disposed between the injecting member 122 and the injection port 1121. The driving member 123 is used to receive a first driving force from the power mechanism 200 to drive the stirring member 121 to rotate and stir the bone cement components to prepare a bone cement mixture. The driving member 123 is also used to receive a second driving force from the power mechanism 200 to drive the injecting member 122 to move in a direction toward the injection port 1121 to inject the bone cement mixture into the bone through the injection port 1121.

[0081] The bone cement mixing and injection assembly 100 provided in this embodiment of the application places the injection member 122 in the receiving cavity 1104 and provides an agitator 121 between the injection member 122 and the injection port 1121, so that the driving member 123 can receive the first driving force of the power mechanism 200 and drive the agitator 121 to rotate to mix the bone cement components, thereby completing the preparation of the bone cement mixture. Moreover, the driving member 123 can also receive the second driving force of the power mechanism 200 to drive the injection member 122 to move in the direction toward the injection port 1121, injecting the bone cement mixture into the bone of the human or animal body through the injection port 1121, thereby completing the injection of the bone cement mixture.

[0082] Therefore, the bone cement mixing and dispensing assembly 100 provided in this application embodiment can simultaneously realize the mixing of bone cement components and the dispensing of bone cement mixture, without the need to transfer the bone cement mixture formed by mixing bone cement components, making the operation simpler and effectively improving the efficiency of orthopedic surgery.

[0083] This application embodiment also provides a bone cement mixing and injection assembly, wherein the mixing element 121 of the bone cement mixing and injection assembly 100 is connected to the injection element 122. A driving element 123 is used to drive the injection element 122 to rotate, thereby causing the mixing element 121 to rotate to mix the bone cement components and prepare a bone cement mixture. The driving element 123 is also used to drive the injection element 122 to move in a direction toward the injection port 1121, so as to inject the bone cement mixture into the bone through the injection port 1121.

[0084] The driving member 123 can be used to receive a first driving force from the power mechanism 200, driving the injection member 122 to rotate and causing the stirring member 121 to rotate to stir the bone cement components and prepare a bone cement mixture. The driving member 123 can also be used to receive a second driving force from the power mechanism 200, driving the injection member 122 to move in the direction toward the injection port 1121, so as to inject the bone cement mixture into the bone through the injection port 1121.

[0085] Alternatively, a first driving force can be applied manually to the drive member 123 to drive the injection member 122 to rotate and drive the stirring member 121 to rotate, thereby stirring the bone cement components and preparing a bone cement mixture. Furthermore, a second driving force can be applied manually to the drive member 123 to drive the injection member 122 to move in the direction toward the injection port 1121, so as to inject the bone cement mixture into the bone through the injection port 1121.

[0086] Of course, the agitator 121 can also be directly connected to the drive unit 123, and the drive unit 123 can directly drive the agitator 121 to rotate, so that the agitator 121 can stir the bone cement components in the receiving cavity 1104 to prepare the bone cement mixture.

[0087] In some embodiments, the agitator 121 is elastic, and the deformation direction of the agitator 121 is consistent with the direction in which the injector 122 moves toward the injection port 1121. Thus, the agitator 121 can agitate the bone cement components within the receiving cavity 1104 to prepare a bone cement mixture, while the agitator 121 can also deform under pressure from the injector 122 and the inner surface 1100 as the injector 122 moves toward the injection port 1121. This allows the injector 122 to be as close as possible to the injection port 1121, thereby minimizing the space between the injector 122 and the injection port 1121, reducing the amount of bone cement residue in the receiving cavity 1104, and minimizing waste.

[0088] In some embodiments, such as Figure 1 , 2As shown in Figures 4 and 5, the stirring element 121 includes at least one spring (1210a, 1210b). The deformation direction of the springs (1210a, 1210b) is consistent with the direction in which the injection element 122 moves toward the injection port 1121. By rotating the springs (1210a, 1210b) within the receiving cavity 1104, the bone cement components within the receiving cavity 1104 can be effectively stirred to prepare a bone cement mixture. Furthermore, by aligning the deformation direction of the springs (1210a, 1210b) with the direction in which the injection element 122 moves toward the injection port 1121, the springs (1210a, 1210b) can have a large deformation in the direction of movement of the injection element 122 when the injection element 122 moves toward the injection port 1121, thereby minimizing the space between the injection element 122 and the injection port 1121 and further reducing the residual amount of bone cement mixture.

[0089] like Figure 1 , 2 As shown in Figure 4, the springs (1210a, 1210b) include a constant diameter spring 1210a. One end of the constant diameter spring 1210a is connected to the injection member 122, and the length direction of the constant diameter spring 1210a is consistent with the direction in which the injection member 122 moves toward the injection port 1121, so that the constant diameter spring 1210a can produce a large deformation in the direction in which the injection member 122 moves toward the injection port 1121.

[0090] The springs (1210a, 1210b) are connected to the side of the injection member 122 near the injection port 1121. When the injection member 122 rotates, it drives the springs (1210a, 1210b) to rotate, thereby causing the springs (1210a, 1210b) to stir the bone cement components in the receiving cavity 1104 to prepare the bone cement mixture. Of course, the springs (1210a, 1210b) can also be connected to the outer peripheral surface of the injection member 122 or other positions, as long as the rotation of the injection member 122 can drive the springs (1210a, 1210b) to rotate.

[0091] Or, such as Figure 5 As shown, the springs (1210a, 1210b) include a variable-diameter spring 1210b. One end of the variable-diameter spring 1210b is connected to the injection member 122, and the length direction of the variable-diameter spring 1210b is aligned with the direction in which the injection member 122 moves toward the injection port 1121, so that the constant-diameter spring 1210a can deform in the direction in which the injection member 122 moves toward the injection port 1121. Since at least two turns of the variable-diameter spring 1210b are staggered in the length direction of the variable-diameter spring 1210b, when the constant-diameter spring 1210a can deform in the direction in which the injection member 122 moves toward the injection port 1121, the constant-diameter spring 1210a can deform.

[0092] When the injection port 1121 deforms in the direction of movement, at least two coils of the variable diameter spring 1210b will not completely overlap, thus allowing the variable diameter spring 1210b to move in the direction of the pusher 122 toward the injection port 1121.

[0093] By being compressed as much as possible, the injection element 122 can be brought closer to the injection port 1121, thereby further reducing the amount of bone cement mixture remaining.

[0094] Furthermore, the portion of the variable-diameter spring 1210b with the larger outer diameter is close to the inner circumferential surface 1101 of the receiving cavity 1104, which enables...

[0095] The bone cement component near the inner circumferential surface 1101 of the receiving cavity 1104 is stirred, while the portion of the variable diameter spring 1210b with a smaller outer diameter is far from the inner circumferential surface 1101 of the receiving cavity 1104. This allows the bone cement component far from the inner circumferential surface 1101 of the receiving cavity 1104 to be stirred. Therefore, the stirring area of ​​the variable diameter spring 1210b is larger, which can more fully stir the bone cement component and further improve the stirring effect.

[0096] Among them, the outer diameter of the variable diameter spring 1210b first changes in the direction in which the pusher 122 moves toward the injection port 1121.

[0097] The diameter increases and then decreases. Therefore, the outer diameter of the variable-diameter spring 1210b near the first end 1105 of the housing 110 is smaller, and the distance between the end of the variable-diameter spring 1210b near the first end 1105 of the housing 110 and the inner circumferential surface 1101 of the receiving cavity 1104 is...

[0098] With a large gap, when bone cement components are added into the receiving cavity 1104 from the first end 1105 of the housing 110, the bone cement components can enter the area where the variable diameter spring 1210b is located through the gap between the end of the variable diameter spring 1210b near the first end 1105 of the housing 110 and the inner circumferential surface 1101 of the receiving cavity 1104, so that the variable diameter spring...

[0099] When 1210b is rotated, the bone cement components are thoroughly stirred to prepare the bone cement mixture.

[0100] In other embodiments, the outer diameter of the variable diameter spring 1210b can be made to first decrease and then increase in the direction in which the pusher 122 moves toward the injection port 1121. Alternatively, the outer diameter of the variable diameter spring 1210b can be made to gradually increase or gradually decrease in the direction in which the pusher 122 moves toward the injection port 1121. Both of these methods can enable the variable diameter spring 1210b to more fully stir the bone cement components and further improve the stirring effect.

[0101] Furthermore, the outer diameter of the variable diameter spring 1210b can also vary irregularly in the direction in which the pusher 122 moves toward the injection port 1121. For example, the outer diameter of the variable diameter spring 1210b varies irregularly in the direction in which the pusher 122 moves toward the injection port 1121.

[0102] The direction of movement alternates between increasing and decreasing.

[0103] In some embodiments, the stirring element 121 includes a plurality of springs (1210a, 1210b). The plurality of springs (1210a, 1210b) included in the stirring element 121 may all be equal-diameter springs 1210a, or they may all be...

[0104] The variable diameter spring 1210b, or alternatively, some springs (1210a, 1210b) can be constant diameter springs 1210a, while the other springs (1210a, 1210b) can be variable diameter springs 1210b. This is achieved by making the stirring element 121 include multiple...

[0105] The springs (1210a, 1210b) can further increase the stirring area of ​​the stirring element 121, thereby improving the stirring effect of the stirring element 121.

[0106] Multiple springs (1210a, 1210b) are connected to the side of the injection member 122 near the injection port 1121. When the injection member 122 rotates, it drives the multiple springs (1210a, 1210b) to rotate, thereby causing the multiple springs (1210a, 1210b) to stir the bone cement components in the receiving cavity 1104 to prepare a bone cement mixture. The multiple springs (1210a, 1210b) are distributed sequentially along the circumference of the injection member 122. Alternatively, the multiple springs (1210a, 1210b) can also be arranged in an array or non-uniformly distributed on the side of the injection member 122 near the injection port 1121.

[0107] It should be noted that in the embodiments of this application, the stirring member 121 may include both a constant diameter spring 1210a and a variable diameter spring 1210b, or the stirring member 121 may include only a constant diameter spring 1210a or a variable diameter spring 1210b.

[0108] In some embodiments, the agitator 121 and the injection member 122 are detachably connected. During a first time period, the agitator 121 agitates the bone cement components. During at least a portion of this first time period, the agitator 121 and the injection member 122 are connected, allowing the drive member 123 to receive a first driving force from the drive mechanism 200 and drive the injection member 122 to rotate, thereby causing the agitator 121 to rotate. During a second time period, the injection member 122 injects the bone cement mixture into the bone through the injection port 1121. During at least a portion of this second time period, the agitator 121 is separated from the injection member 122. Therefore, when the drive member 123 receives a second driving force from the drive mechanism 200 and drives the injection member 122 to push the bone cement mixture towards the injection port 1121, the injection member 122 is less affected by the agitator 121.

[0109] In particular, when the drive component 123 is threadedly connected to the housing 110, after receiving the second driving force from the drive mechanism 200, the drive component 123 will rotate in a unidirectional spiral relative to the housing 110, thereby driving the injection component 122 to move toward the injection port 1121 in a unidirectional spiral manner. If the injection component 122 and the mixing component 121 are still connected at this time, the bone cement mixture will exert resistance on the injection component 122 through the mixing component 121, hindering the spiral rotation of the injection component 122, thereby increasing the second driving force that pushes the injection component 122 to move toward the injection port 1121, and requiring higher power from the drive mechanism 200.

[0110] In some embodiments, the stirring member 121 and the injection member 122 are threadedly connected, allowing for a detachable connection between them. The driving member 123 is further configured to drive the injection member 122 to rotate relative to the stirring member 121, thereby disengaging the injection member 122 from the stirring member 121. Specifically, the driving member 123 receives a fourth driving force from the driving mechanism 200 to drive the injection member 122 to rotate relative to the stirring member 121, thus disengaging the injection member 122 from the stirring member 121.

[0111] It is understandable that the mixing element 121 rotates relative to the injection element 122 in the first direction so that the injection element 122 and the mixing element 121 are spirally connected. When the driving element 123 drives the injection element 122 to rotate in the first direction, since the mixing element 121 and the bone cement mixture are mixed together, the bone cement mixture will exert a force on the mixing element 121 to prevent the mixing element 121 from rotating together with the injection element 122 in the first direction. This causes the mixing element 121 to rotate in the opposite direction relative to the injection element 122 in the first direction, so that the injection element 122 and the mixing element 121 are disengaged from the threaded connection.

[0112] Specifically, such as Figure 2As shown, the injection component 122 has a threaded hole 1221 on the side facing the injection port 1121. The stirring component 121 includes a stirring part 1211 and a threaded rod 1212 connected to each other. The threaded rod 1212 is inserted into the threaded hole 1221 of the injection component 122 and is threadedly connected to the inner surface of the threaded hole 1221. The driving component 123 is used to drive the injection component 122 to rotate relative to the stirring component 121 so that the threaded rod 1212 is screwed out from the threaded hole 1221.

[0113] The threaded hole 1221 of the injection member 122 extends in the direction in which the injection member 122 moves toward the injection port 1121. The threaded rod 1212 is inserted into the threaded hole 1221 in a first direction relative to the injection member 122, so that the threaded rod 1212 is threadedly connected to the inner surface of the threaded hole 1221. The driving member 123 is used to drive the injection member 122 to rotate in the first direction. The bone cement mixture will exert a force on the mixing member 121 to prevent the mixing member 121 from rotating together with the injection member 122 in the first direction, so that the mixing member 121 rotates in the opposite direction relative to the injection member 122 in the first direction, causing the threaded rod 1212 to screw out from the threaded hole 1221.

[0114] Alternatively, a threaded rod 1212 can be provided on the side of the injection member 122 facing the injection port 1121, and a threaded hole 1221 that can be threadedly connected to the threaded rod 1212 can be provided on the stirring member 121. By inserting the threaded rod 1212 of the injection member 122 into the threaded hole 1221 of the stirring member 121, the stirring member 121 and the injection member 122 can be threadedly connected.

[0115] In other embodiments, a socket (not shown) may be provided on the side of the injection member 122 facing the injection port 1121, and the stirring member 121 may include a connecting rod (not shown). By inserting the connecting rod into the socket, the injection member 122 and the stirring member 121 can be detachably connected. The shape of the connecting rod is adapted to the shape of the socket, and the cross-sectional shape of the socket in the direction perpendicular to the direction in which the injection member 122 moves toward the injection port 1121 is non-circular. Thus, when the driving member 123 drives the injection member 122 to rotate, it can drive the stirring member 121 to rotate, thereby stirring the bone cement components and preparing the bone cement mixture. When the driving member 123 drives the injection member 122 to move in a direction away from the injection port 1121, the bone cement mixture will exert resistance on the stirring member 121, preventing the stirring member 121 from moving with the injection member 122 in a direction away from the injection port 1121, thereby separating the stirring member 121 from the injection member 122.

[0116] Alternatively, the plug rod can be positioned on the side of the injection member 122 facing the injection port 1121, and a socket for the plug rod can be made on the stirring member 121. By inserting the plug rod of the injection member 122 into the socket of the stirring member 121, the stirring member 121 and the injection member 122 can be detachably connected.

[0117] In addition, a snap-fit ​​structure can be provided on the injection component 122, which can be snapped into the agitator 121 to make the injection component 122 and the agitator 121 detachably connected.

[0118] In some embodiments, such as Figure 1 As shown, the housing 110 is provided with a hook 1122, which is located within the receiving cavity 1104. The hook 1122 can engage with the mixing member 121 so that when the driving member 123 drives the injection member 122 to rotate and / or move in a direction away from the injection port 1121, the mixing member 121 separates from the injection member 122. When the hook 1122 is engaged with the mixing member 121, when the driving member 123 drives the injection member 122 to rotate and / or move in a direction away from the injection port 1121, the hook 1122 and the bone cement mixture can prevent the mixing member 121 and the injection member 122 from rotating synchronously and / or moving synchronously in a direction away from the injection port 1121, thereby separating the mixing member 121 from the injection member 122.

[0119] In some embodiments, the hook 1122 is located at the first end 1105 of the housing 110. Thus, when the injection member 122 moves in the direction toward the injection port 1121, the hook 1122 will not interfere with the injection member 122 prematurely, allowing the injection member 122 to be as close as possible to the injection port 1121, thereby reducing the amount of bone cement mixture remaining in the receiving cavity 1104.

[0120] In addition, the hook 1122 is located at the first end 1105 of the housing 110. When the mixing element 121 mixes the bone cement components, the hook 1122 is far away from the mixing element 121 and will not interfere with the mixing element 121, thus affecting the mixing effect of the mixing element 121 on the bone cement components.

[0121] Of course, the hook 1122 can also be disposed between the first end 1105 and the second end 1106 of the housing 110. In this case, the hook 1122 can be a flexible structure, so that when the injection member 122 abuts against the hook 1122, the hook 1122 can avoid the injection member 122. Alternatively, the hook 1122 can slide relative to the housing 110 along the direction of the injection member 122 toward the injection port 1121. When the injection member 122 abuts against the hook 1122, the hook 1122 can move together with the injection member 122, so that the injection member 122 can be as close as possible to the injection port 1121 without being interfered with by the hook 1122.

[0122] In some embodiments, the inner surface 1100 includes an inner peripheral surface 1101 that seals with the injection member 122, and a first end face 1102 located at the first end 1105 of the housing 110. The injection port 1121 passes through the first end face 1102 and communicates with the receiving cavity 1104. The hook 1122 extends from the first end face 1102 toward the agitator 121. The hook 1122 is spaced apart from the inner peripheral surface 1101 so that a portion of the agitator 121 can be inserted into the gap between the hook 1122 and the inner peripheral surface 1101 and hooked with the hook 1122.

[0123] In other embodiments, such as Figure 5 As shown, the inner surface 1100 includes an inner peripheral surface 1101 that seals with the injection member 122. The hook 1122 includes a connecting portion 1122a connected to the inner peripheral surface 1101, and a hook portion 1122b extending from the connecting portion 1122a toward the stirring member 121. The hook portion 1122b is spaced apart from the inner peripheral surface 1101 so that a portion of the stirring member 121 can be inserted into the gap between the hook portion 1122b and the inner peripheral surface 1101 and hooked with the hook portion 1122b.

[0124] In some embodiments, the housing 110 is detachably connected to the support member 210 of the power mechanism 200. The drive member 123 is detachably connected to the power component 220 of the power mechanism 200. The drive member 123 can receive a first driving force from the power component 220 to drive the stirring member 121 to rotate and stir the bone cement components to prepare a bone cement mixture. Alternatively, the drive member 123 can receive a second driving force from the power component 220 to drive the injection member 122 to move in a direction toward the injection port 1121 to inject the bone cement mixture into the bone through the injection port 1121.

[0125] This embodiment of the application allows the housing 110 of the bone cement mixing and dispensing assembly 100 to be detachably connected to the support component 210 of the power mechanism 200, and the drive component 123 of the bone cement mixing and dispensing assembly 100 to be detachably connected to the power component 220 of the power mechanism 200, thereby enabling the power mechanism 200 to be reused. After the first bone cement mixing and dispensing assembly 100, driven by the power mechanism 200, completes the preparation of bone cement components into a bone cement mixture and dispensing the bone cement mixture into the bones of a human or animal, the first bone cement mixing and dispensing assembly 100 can be removed from the drive mechanism 200. The housing 110 and drive component 123 of the second bone cement mixing and dispensing assembly 100 are then detachably connected to the support component 210 and the power component 220 of the power mechanism 200, so that the power mechanism 200 drives the second bone cement mixing and dispensing assembly 100 to prepare bone cement components into a bone cement mixture and dispensing the bone cement mixture into the bones of a human or animal.

[0126] The housing 110 includes a second end 1106 opposite to the first end 1105. The second end 1106 of the housing 110 is detachably connected to the support member 210 of the power mechanism 200, thereby detachably connecting the housing 110 and the support member 210 together. Because the second end 1106 of the housing 110 is detachably connected to the support member 210, the first end 1105 of the housing 110 is further away from the support member 210, making it easier to add bone cement components from the first end 1105 of the housing 110 into the receiving cavity 1104 without interference from the support member 210. Simultaneously, when one end of the injection tubing 130 is connected to the injection port 1121 of the first end 1105 of the housing 110, it is also less likely to be interfered with by the support member 210.

[0127] Specifically, the housing 110 includes a cylindrical body 111 extending between a first end 1105 and a second end 1106, a first end cap 112 located at the first end 1105, and a second end cap 113 located at the second end 1106. The inner surface 1100 of the housing 110 includes an inner circumferential surface 1101 located within the cylindrical body 111, a first end face 1102 located at the first end cap 112, and a second end face 1103 located at the second end cap 113. The inner circumferential surface 1101, the first end face 1102, and the second end face 1103 enclose a receiving cavity 1104. An injection port 1121 is formed on the first end cap 112. A pusher 122 is sealed to the inner circumferential surface 1101 and is movable along the extending direction of the cylindrical body 111. The second end cap 113 is used for detachable connection with the support member 210.

[0128] By sealing the injection element 122 with the inner circumferential surface 1101, there is no gap between the injection element 122 and the inner circumferential surface 1101. When the injection element 122 moves in the direction toward the injection port 1121 to inject the bone cement mixture, it can prevent the bone cement mixture from leaking out from the gap between the injection element 122 and the inner circumferential surface 1101, thus preventing waste of the bone cement mixture.

[0129] Among them, such as Figure 2 As shown, a sealing element 1222 protrudes from the outer peripheral surface of the injection member 122. The sealing element 1222 extends along the axial direction of the injection member 122 in an annular structure. The sealing element 1222 abuts against the inner peripheral surface 1101 of the cylinder 111 to achieve a sealing fit between the injection member 122 and the inner peripheral surface 1101. Alternatively, the outer peripheral surface of the injection member 122 can directly abut against the inner peripheral surface 1101 of the cylinder 111 to achieve a sealing fit between the injection member 122 and the inner peripheral surface 1101.

[0130] like Figure 8 and Figure 9As shown, the second end 1106 of the housing 110 is used to insert into the mounting groove 211 on the support member 210, so that the housing 110 and the support member 210 are detachably connected. Therefore, the connection between the housing 110 and the support member 210 is very convenient. Figure 3 As shown, a protrusion 1131 is provided on the outer peripheral surface of the second end 1106 of the housing 110. The second end 1106 is used to insert into the mounting groove 211 on the support member 210, and the protrusion 1131 is used to insert into the limiting groove 2110 on the inner peripheral surface of the mounting groove 211, so that the housing 110 and the support member 210 can be detachably connected. Through the cooperation of the protrusion 1131 and the limiting groove 2110, the rotation of the housing 110 relative to the support member 210 can be restricted, so that the power mechanism 200 applies a first driving force to the drive member 123, causing the drive member 123 to drive the stirring member 121 to rotate to stir the bone cement components. When preparing the bone cement mixture, the housing 110 will not rotate with it.

[0131] The number of protrusions 1131 is multiple, and the multiple protrusions 1131 are distributed sequentially along the circumference of the second end 1106 to further improve the connection stability between the housing 110 and the support component 210.

[0132] Specifically, the second end cap 113 located at the second end 1106 of the housing 110 is used to insert into the mounting groove 211 on the support member 210, so that the housing 110 and the support member 210 are detachably connected. A protrusion 1131 is provided on the outer peripheral surface of the second end cap 113. There are multiple protrusions 1131 on the second end cap 113, and these protrusions 1131 are distributed sequentially along the axial direction of the second end cap 113. The number of protrusions 1131 can be two, three, etc., and is not limited here.

[0133] In other embodiments, the middle portion or the first end 1105 of the housing 110 may be detachably connected to the support member 210. In addition to inserting the housing 110 into the mounting groove 211 of the support member 210 to detachably connect the housing 110 and the support member 210, snap-fits, screws, or other methods may also be used to detachably connect the housing 110 and the support member 210 together.

[0134] In some embodiments, such as Figure 1 , Figure 12 As shown, the drive member 123 passes through the second end 1106 of the housing 110. One end of the drive member 123 is connected to the injection member 122, and the other end of the drive member 123 is used for detachable connection with the power component 220. By allowing the drive member 123 to pass through the second end 1106 of the housing 110 and be detachably connected to the power component 220, the drive member 123 and the power component 220 can be detachably connected relatively easily. Specifically, the drive member 123 passes through the second end cap 113 so that the drive member 123 passes through the second end 1106 of the housing 110.

[0135] Continue to refer to Figure 1 and Figure 12 The driving member 123 is threadedly connected to the second end 1106 of the housing 110. The driving member 123 is used to reciprocate spirally relative to the second end 1106 under the drive of the first driving force, so as to drive the stirring member 121 to rotate, so that the stirring member 121 stirs the bone cement components to prepare the bone cement mixture. The injection member 122 also reciprocates spirally within the first region S1.

[0136] The driving member 123 is also used to rotate unidirectionally relative to the second end 1106 under the drive of the second driving force, so as to drive the injection member 122 to move in the direction toward the injection port 1121, that is, to drive the injection member 122 to move toward the injection port 1121 in a unidirectional spiral rotation manner, thereby pushing the bone cement mixture in the receiving cavity 1104 out of the injection port 1121. The injection member 122 rotates unidirectionally within the second region S2.

[0137] The driving member 123 includes a driving part 1231, which is slidably mounted in the transmission hole 2210 of the rotating member 221 of the power member 220. When the rotating member 221 rotates around the rotation axis X, it can drive the driving member 123 to rotate synchronously around the rotation axis X. The driving part 1231 can move along the rotation axis X within the transmission hole 2210, so that the driving member 123 can drive the stirring member 121 to rotate and drive the injection member 122 to move in a direction toward or away from the injection port 1121.

[0138] Since the driving member 123 is threadedly connected to the second end 1106 of the housing 110, when the power component 220 controls the rotating member 221 to rotate around the rotation axis X, driving the driving member 123 to rotate synchronously relative to the housing 110 around the rotation axis X, the driving member 123 needs to move relative to the housing 110 along the length direction of the rotation axis X. In this embodiment, by enabling the driving part 1231 of the driving member 123 to move along the rotation axis X within the transmission hole 2210, the rotating member 221 drives the driving member 123 to rotate synchronously relative to the housing 110 around the rotation axis X, which does not hinder the driving member 123 from moving relative to the housing 110 along the length direction of the rotation axis X. This allows the driving member 123 to reciprocate spirally relative to the second end 1106 under the drive of the first driving force, and to rotate unidirectionally spirally relative to the second end 1106 under the drive of the second driving force.

[0139] Among them, such as Figure 6 As shown, the cross-sectional shape of the drive unit 1231 in the direction perpendicular to the movement of the drive unit 1231 within the transmission hole 2210 is polygonal, or, as shown... Figure 7As shown, the cross-sectional shape of the drive unit 1231a in the direction perpendicular to the direction of movement of the drive unit 1231a in the transmission hole 2210 is quincunx-shaped, so that after the drive unit 1231 is slidably installed in the transmission hole 2210 of the rotating member 221 of the power component 220, when the rotating member 221 rotates around the rotation axis X, it can drive the drive unit 123 to rotate synchronously around the rotation axis X, and the drive unit 1231 can move relative to the rotating member 221 on the rotation axis X.

[0140] Of course, the cross-sectional shape of the drive unit 1231 in the direction perpendicular to the direction of movement of the drive unit 1231 in the transmission hole 2210 can also be an elliptical cross-section or other non-circular cross-section. As long as the drive unit 1231 is slidably installed in the transmission hole 2210 of the rotating member 221 of the power component 220, the rotating member 221 can drive the drive unit 123 to rotate synchronously around the rotation axis X when it rotates around the rotation axis X, and the drive unit 1231 can move relative to the rotating member 221 on the rotation axis X.

[0141] In some embodiments, the cylinder 111 has a second opening 1112 formed at the second end 1106, and the second end cap 113 is detachably connected to the cylinder 111 to open or close the second opening 1112. By detachably connecting the second end cap 113 to the cylinder 111 and opening or closing the second opening 1112, the connection between the second end cap 113 and the drive member 123 can be made more convenient. Specifically, the drive member 123 can be passed through the second end cap 113 first, and then the drive member 123 can be threadedly connected to the second end cap 113. Then, the injection member 122 is connected to one end of the drive member 123. After that, the injection member 122 is placed inside the cylinder 111, so that the injection member 122 is sealed to the inner circumferential surface 1101 of the cylinder 111. Finally, the second end cap 113 is detachably connected to the cylinder 111.

[0142] The second end cap 113 includes a connecting hole 1132, and the cylinder 111 includes a connecting end 1113 located at the second end 1106. The connecting end 1113 of the cylinder 111 is inserted into the connecting hole 1132 of the second end cap 113, so that the cylinder 111 and the second end cap 113 are detachably connected. The inner circumferential surface of the connecting hole 1132 is provided with an internal thread, and the outer circumferential surface of the connecting end 1113 of the cylinder 111 is provided with an external thread. After the connecting end 1113 of the cylinder 111 is inserted into the connecting hole 1132 of the second end cap 113, the external thread and the internal thread are threaded together to improve the connection stability between the cylinder 111 and the second end cap 113.

[0143] In some embodiments, such as Figure 1As shown, the cylinder 111 has a first opening 1111 formed at the first end 1105, and the first end cap 112 is movably connected to the cylinder 111 to open or close the first opening 1111. When preparing a bone cement mixture using the bone cement mixing and dispensing assembly 100, the first end cap 112 can be used to open the first opening 1111 of the cylinder 111 and add the bone cement components from the first opening 1111 into the receiving cavity 1104, and then the first end cap 112 can be closed to close the first opening 1111.

[0144] Among them, such as Figure 1 and Figure 10 As shown, the bone cement mixing and dispensing assembly 100 also includes a feeding funnel 140. The nozzle 141 of the feeding funnel 140 is inserted into the first opening 1111 to allow the bone cement components to enter the receiving cavity 1104 through the feeding funnel 140. By inserting the nozzle 141 of the feeding funnel 140 into the first opening 1111 and then adding the bone cement components into the receiving cavity 1104 through the feeding funnel 140, leakage of bone cement components into the receiving cavity 1104 can be avoided.

[0145] Of course, in the absence of the feeding funnel 140, the bone cement components can also be added directly into the receiving cavity 1104 through the first opening 1111.

[0146] It should be noted that both the first end cap 112 and the second end cap 113 can be detachably connected to the cylinder 111, or one of the first end cap 112 and the second end cap 113 can be detachably connected to the cylinder 111. Alternatively, both the first end cap 112 and the second end cap 113 can be integrally formed with the cylinder 111 or be non-detachably connected. Of course, the former makes the addition of bone cement components more convenient and the connection between the second end cap 113 and the drive component 123 more convenient.

[0147] This application embodiment also provides a bone cement mixing and injection assembly 100, including a housing 110 and a mixing and injection mechanism 120. The housing 110 includes a first end 1105 and a second end 1106 opposite to each other. The housing 110 includes a first end cap 112 located at the first end 1105, a second end cap 113 located at the second end 1106, and a cylindrical body 111 extending between the first end 1105 and the second end 1106. The cylindrical body 111 has a first opening 1111 formed at the first end 1105. The first end cap 112 is movably connected to the cylindrical body 111 to open or close the first opening 1111. The first end cap 112, the second end cap 113 and the cylindrical body 111 enclose a receiving cavity 1104 for receiving bone cement components. The first end cap 112 is provided with an injection port 1121 communicating with the receiving cavity 1104.

[0148] The stirring and dispensing mechanism 120 includes a stirring element 121, a dispensing element 122, and a driving element 123. The dispensing element 122 is disposed within the receiving cavity 1104 and is sealed to the inner circumferential surface 1101 of the cylinder 111. The dispensing element 122 is movable in the direction toward the injection port 1121. The stirring element 121 is disposed between the dispensing element 122 and the injection port 1121 and is detachably connected to the dispensing element 122.

[0149] The drive member 123 passes through the second end cap 113 and is threadedly connected to the second end cap 113. One end of the drive member 123 is connected to the injection member 122, and the other end of the drive member 123 is used to receive the first driving force and the second driving force of the power mechanism 200.

[0150] The drive component 123 is used to reciprocate spirally relative to the second end cap 113 under the drive of the first driving force, thereby driving the injection component 122 and the stirring component 121 to reciprocate spirally to stir the bone cement components and prepare a bone cement mixture.

[0151] The drive member 123 is used to rotate in a unidirectional spiral relative to the second end cap 113 under the drive of the second driving force, driving the injection member 122 to move in the direction toward the injection port 1121, so as to inject the bone cement mixture into the bone of the human or animal body through the injection port 1121.

[0152] The first end cap 112 is also provided with a hook 1122. The hook 1122 is located in the receiving cavity 1104. When the driving member 123 drives the stirring member 121 to rotate, the hook 1122 can hook onto the stirring member 121 so that the stirring member 121 can be separated from the injection member 122.

[0153] The bone cement mixing and dispensing assembly 100 provided in this application embodiment opens or closes the first opening 1111 of the cylinder 111 by movably connecting the first end cap 112 of the housing 110 to the cylinder 111. When preparing a bone cement mixture using the bone cement mixing and dispensing assembly 100, the first end cap 112 can open the first opening 1111 of the cylinder 111 and add the bone cement components from the first opening 1111 into the receiving cavity 1104, and then the first end cap 112 is closed to close the first opening 1111.

[0154] Then, a first driving force can be applied to the drive member 123 through the power mechanism 200, causing the drive member 123 to...

[0155] The second end cap 113 reciprocates in a spiral rotation, driving the injection component 122 and the stirring component 121 to reciprocate in a spiral rotation to stir the bone cement components and prepare a bone cement mixture.

[0156] Subsequently, a third driving force is applied to the drive member 123 via the power mechanism 200, causing the drive member 123 to move the injection member 122 and the stirring member 121 in a direction toward the injection port 1121, so that the stirring member 121 hooks with the hook 1122 in the receiving cavity 1104. Then, a fourth driving force is applied to the drive member 123 via the power mechanism 200, causing the drive member 123 to move the injection member 122 in a direction away from the injection port 1121, so that the stirring member 121 separates from the injection member 122.

[0157] Finally, a second driving force is applied to the drive member 123 by the power mechanism 200, which drives the drive member 123 to rotate in a unidirectional spiral relative to the second end cap 113, thereby causing the injection member 122 to move in the direction toward the injection port 1121, so as to inject the bone cement mixture into the bone of the human or animal body through the injection port 1121.

[0158] Therefore, the bone cement mixing and injection assembly 100 provided in this application embodiment can simultaneously realize the functions of mixing bone cement components and injecting bone cement mixture, without the need to transfer the bone cement mixture formed by mixing bone cement components, making the operation simpler and effectively improving the efficiency of orthopedic surgery. Moreover, before the drive mechanism 200 controls the drive component 123 to drive the injection component 122 to move in the direction toward the injection port 1121 to inject the bone cement mixture into the bone through the injection port 1121, the mixing component 121 and the injection component 122 are separated by the hook 1122 to prevent the injection component 122 from being resisted by the mixing component 121 when rotating in a unidirectional spiral, thus reducing the power requirements of the power mechanism 200.

[0159] In this embodiment, the shell 110 of the bone cement mixing and dispensing assembly 100 and the support member 210 of the power mechanism 200 can be detachably connected, and the drive member 123 of the bone cement mixing and dispensing assembly 100 and the power member 220 of the power mechanism 200 can be detachably connected in accordance with the above embodiments, or only one of the connection methods can be used in accordance with the above embodiments. That is, only the shell 110 of the bone cement mixing and dispensing assembly 100 and the support member 210 of the power mechanism 200 can be detachably connected in accordance with the above embodiments, while the drive member 123 of the bone cement mixing and dispensing assembly 100 and the power member 220 of the power mechanism 200 are non-detachably connected, or a method other than the above embodiments can be used to achieve the detachable connection. Alternatively, the drive component 123 of the bone cement mixing and dispensing assembly 100 and the power component 220 of the power mechanism 200 may be connected in the manner described in the above embodiments, while the housing 110 of the bone cement mixing and dispensing assembly 100 and the support component 210 of the power mechanism 200 may be connected in a non-detachable manner, or a detachable connection may be achieved in a manner other than that described in the above embodiments.

[0160] It is understood that, in addition to mixing bone cement components to prepare a bone cement mixture and injecting the bone cement mixture into the bones of a human or animal, the bone cement mixing and injecting component in this application embodiment can also prepare and inject other fillers that need to be prepared and injected.

[0161] Therefore, this application also proposes a stirring and injection assembly, including a housing 110 and a stirring and injection mechanism 120. The housing 110 includes an inner surface 1100, and the inner surface 1100 forms a receiving cavity 1104 for receiving bone cement components. A first end 1105 of the housing 110 forms an injection port 1121 communicating with the receiving cavity 1104. The stirring and injection mechanism 120 is used to stir the filler components in the receiving cavity 1104 to prepare a filler mixture. The stirring and injection mechanism 120 is also used to inject the filler mixture in the receiving cavity 1104 into a human or animal through the injection port 1121.

[0162] Alternatively, the injection port 1121 of the housing 110 can be connected to one end of the injection tubing 130, and the other end of the injection tubing 130 can be inserted into a human or animal body, so that the stirring and injection mechanism 120 can inject the filler mixture in the receiving cavity 1104 into the human or animal body through the injection port 1121.

[0163] In some embodiments, the stirring and injecting mechanism 120 includes a stirring member 121, an injecting member 122, and a driving member 123. The injecting member 122 is disposed within the receiving cavity 1104, and the stirring member 121 is disposed between the injecting member 122 and the injection port 1121. The driving member 123 is used to receive a first driving force from the power mechanism 200 to drive the stirring member 121 to rotate and stir the filler components to prepare a filler mixture. The driving member 123 is also used to receive a second driving force from the power mechanism 200 to drive the injecting member 122 to move in a direction toward the injection port 1121 to inject the filler mixture into a human or animal body through the injection port 1121.

[0164] The stirring and injecting assembly provided in this embodiment of the application places the injecting member 122 in the receiving cavity 1104 and provides a stirring member 121 between the injecting member 122 and the injection port 1121. This allows the driving member 123 to receive the first driving force from the power mechanism 200 and drive the stirring member 121 to rotate and stir the filler components, thus completing the preparation of the filler mixture. Furthermore, the driving member 123 can also receive the second driving force from the power mechanism 200, driving the injecting member 122 to move towards the injection port 1121, injecting the filler mixture into the human or animal body through the injection port 1121, thus completing the injection of the filler mixture.

[0165] Therefore, the stirring and injecting assembly provided in this application embodiment can simultaneously realize the function of preparing filler components into filler mixtures and the function of injecting filler mixtures, without the need to transfer the filler mixture formed by stirring the filler components, making the operation simpler and effectively improving the efficiency of surgery.

[0166] This application also proposes a bone cement mixing and dispensing device, which includes a bone cement mixing and dispensing assembly. The specific structure of the bone cement mixing and dispensing assembly is as described in the above embodiments. Since this bone cement mixing and dispensing device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0167] like Figure 8 , Figure 11 and Figure 12 The bone cement mixing and injection device 10 includes a bone cement mixing and injection assembly 100 and a power mechanism 200. The bone cement mixing and injection assembly 100 is as described above. The power mechanism 200 is connected to the drive member 123 of the bone cement mixing and injection assembly 100. The power mechanism 200 applies a first driving force to the drive member 123 and drives the mixing member 121 to mix the bone cement components in the receiving cavity 1104 of the bone cement mixing and injection assembly 100, thereby preparing a bone cement mixture. The power mechanism 200 also applies a second driving force to the drive member 123 and drives the injection member 122 of the bone cement mixing and injection assembly 100 to move in a direction toward the injection port 1121, so as to inject the bone cement mixture into the bone through the injection port 1121.

[0168] The bone cement mixing and injection device 10 provided in this application embodiment places the injection component 122 of the bone cement mixing and injection assembly 100 in the receiving cavity 1104, and arranges the stirring component 121 between the injection component 122 and the injection port 1121, so that the power mechanism 200 can apply a first driving force to the driving component 123 and drive the stirring component 121 to rotate to mix the bone cement components, thereby completing the preparation of the bone cement mixture. Moreover, the power mechanism 200 can also apply a second driving force to the driving component 123 to drive the injection component 122 to move in the direction toward the injection port 1121, injecting the bone cement mixture into the bones of the human or animal body through the injection port 1121, thereby completing the injection of the bone cement mixture.

[0169] Therefore, the bone cement mixing and dispensing device 10 provided in this application embodiment can simultaneously realize the mixing of bone cement components and the dispensing of bone cement mixture, without the need to transfer the bone cement mixture formed by mixing bone cement components, making the operation simpler and effectively improving the efficiency of orthopedic surgery.

[0170] In this design, the drive component 123 is threadedly connected to the second end 1106 of the housing 110 away from the injection port 1121. The first driving force applied by the power mechanism 200 drives the drive component 123 to reciprocate in a spiral motion, thereby causing the mixing component 121 to reciprocate in a spiral motion to mix the bone cement components. The second driving force applied by the power mechanism 200 drives the drive component 123 to rotate in a unidirectional spiral motion, thereby causing the injection component 122 to move in the direction toward the injection port 1121. Thus, the structure of the bone cement mixing and injection assembly 100 and the power mechanism 200 of the bone cement mixing and injection device 10 is simpler. The power mechanism 200 only needs to be able to drive the drive component 123 of the bone cement mixing and injection assembly 100 to rotate spirally relative to the housing 110 to realize the functions of mixing the bone cement components and injecting the bone cement mixture.

[0171] The power mechanism 200 includes a support member 210 and a power member 220. The support member 200 is detachably connected to the housing 110 of the bone cement mixing and dispensing assembly 100. The power member 220 is detachably connected to the drive member 123 and is used to apply a first driving force and a second driving force to the drive member 123.

[0172] By enabling the housing 110 of the bone cement mixing and dispensing assembly 100 of the bone cement mixing and dispensing device 10 to be detachably connected to the support component 210 of the power mechanism 200, and enabling the drive component 123 of the bone cement mixing and dispensing assembly 100 to be detachably connected to the power component 220 of the power mechanism 200, the power mechanism 200 of the bone cement mixing and dispensing device 10 can be reused.

[0173] After the first bone cement mixing and injection assembly 100, driven by the power mechanism 200, completes the preparation of bone cement components into a bone cement mixture and injects the bone cement mixture into the bones of a human or animal, the first bone cement mixing and injection assembly 100 can be removed from the drive mechanism 200. The housing 110 and drive component 123 of the second bone cement mixing and injection assembly 100 are detachably connected to the support component 210 and the power component 220 of the power mechanism 200 in sequence, so that the power mechanism 200 drives the second bone cement mixing and injection assembly 100 to prepare bone cement components into a bone cement mixture and inject the bone cement mixture into the bones of a human or animal.

[0174] In some embodiments, the power component 220 includes a rotating member 221 that can rotate about a rotation axis X. The rotating member 221 has a transmission hole 2210. The driving part 1231 of the driving member 123 is slidably installed in the transmission hole 2210. When the rotating member 221 rotates about the rotation axis X, it can drive the driving member 123 to rotate synchronously about the rotation axis X. The driving part 1231 can move along the rotation axis X within the transmission hole 2210.

[0175] Since the driving member 123 is threadedly connected to the second end 1106 of the housing 110, when the power component 220 controls the rotating member 221 to rotate around the rotation axis X, driving the driving member 123 to rotate synchronously relative to the housing 110 around the rotation axis X, the driving member 123 needs to move relative to the housing 110 along the length direction of the rotation axis X. In this embodiment, by enabling the driving part 1231 of the driving member 123 to move along the rotation axis X within the transmission hole 2210, the rotating member 221 drives the driving member 123 to rotate synchronously relative to the housing 110 around the rotation axis X, which does not hinder the driving member 123 from moving relative to the housing 110 along the length direction of the rotation axis X. This allows the driving member 123 to reciprocate spirally relative to the second end 1106 under the drive of the first driving force, and to rotate unidirectionally spirally relative to the second end 1106 under the drive of the second driving force.

[0176] In some embodiments, such as Figures 8 to 12 As shown, the support component 210 includes a mounting groove 211, and a limiting groove 2110 is provided on the inner circumferential surface of the mounting groove 211. The second end 1106 is used to insert into the mounting groove 211, so that the housing 110 and the support component 210 can be detachably connected. Thus, the connection between the housing 110 and the support component 210 is very convenient. At the same time, the cooperation between the protrusion 1131 and the limiting groove 2110 can restrict the rotation of the housing 110 relative to the support component 210, thereby allowing the power mechanism 200 to apply a first driving force to the drive member 123, causing the drive member 123 to drive the stirring member 121 to rotate to stir the bone cement components. When preparing the bone cement mixture, the housing 110 will not rotate with it.

[0177] To better implement the bone cement mixing and dispensing device 10 of this application, based on the above-described bone cement mixing and dispensing device 10, this application also proposes a bone cement mixing and dispensing method, which is used in the bone cement mixing and dispensing device 10. The structure of the bone cement mixing and dispensing device 10 can refer to the above embodiments. Figure 13 As shown, the method includes steps S101 and S102:

[0178] S101. After the bone cement components are received in the receiving cavity 1104 of the bone cement mixing and dispensing assembly 100 of the bone cement mixing and dispensing equipment 10, a first driving force is applied to the driving member 123 of the bone cement mixing and dispensing assembly 100 by the power mechanism 200 of the bone cement mixing and dispensing equipment 10, so that the driving member 123 drives the mixing member 121 provided in the receiving cavity 1104 to rotate to mix the bone cement components and prepare a bone cement mixture.

[0179] S102. The power mechanism 200 applies a second driving force to the drive member 123, causing the drive member 123 to move the injection member 122 located in the receiving cavity 1104 in the direction toward the injection port 1121, so as to inject the bone cement mixture into the bone through the injection port 1121.

[0180] The bone cement mixing and injection method provided in this application embodiment, after the bone cement component is received in the receiving cavity 1104 of the bone cement mixing and injection assembly 100, applies a first driving force to the driving member 123 through the power mechanism 200, and drives the mixing member 121 to rotate to mix the bone cement component, thus completing the preparation of the bone cement mixture. Furthermore, a second driving force is applied to the driving member 123 through the power mechanism 200, driving the injection member 122 to move in the direction toward the injection port 1121, injecting the bone cement mixture into the bone of a human or animal body through the injection port 1121, thus completing the injection of the bone cement mixture.

[0181] Therefore, the bone cement mixing and injection method provided in this application embodiment can simultaneously achieve the mixing of bone cement components and the injection of bone cement mixture, without the need to transfer the bone cement mixture formed by mixing bone cement components, making the operation simpler and effectively improving the efficiency of orthopedic surgery.

[0182] In some embodiments, the drive member 123 is threadedly connected to the second end 1106 of the housing 110 away from the injection port 1121. The step of applying a first driving force to the drive member 123 of the bone cement mixing and dispensing assembly 100 via the power mechanism 200 of the bone cement mixing and dispensing device 10, causing the drive member 123 to rotate the mixing member 121 disposed in the receiving cavity 1104 to mix the bone cement components, may include:

[0183] The power mechanism 200 of the bone cement mixing and dispensing device 10 applies a first driving force to the drive component 123 of the bone cement mixing and dispensing assembly 100, driving the drive component 123 to reciprocate in a spiral rotation, thereby causing the mixing component 121 in the receiving cavity 1104 to reciprocate in rotation to mix the bone cement components and prepare a bone cement mixture.

[0184] The step of applying a second driving force to the driving member 123 through the power mechanism 200, causing the driving member 123 to drive the injection member 122 disposed in the receiving cavity 1104 to move in the direction toward the injection port 1121, so as to inject the bone cement mixture into the bone through the injection port 1121, includes:

[0185] The power mechanism 200 applies a second driving force to the drive member 123, causing the drive member 123 to rotate in a unidirectional spiral, which in turn causes the injection member 122 to move in the direction toward the injection port 1121, so as to inject the bone cement mixture into the bone through the injection port 1121.

[0186] In some embodiments, the stirring member 121 is detachably connected to the injection member 122. Before applying a second driving force to the drive member 123 via the power mechanism 200, the method further includes:

[0187] The power mechanism 200 applies a third driving force to the drive member 123, which drives the drive member 123 to move the injection member 122 and the stirring member 121 in the direction toward the injection port 1121, so that the stirring member 121 hooks with the hook 1122 in the receiving cavity 1104.

[0188] The power mechanism 200 applies a fourth driving force to the drive member 123, which drives the drive member 123 to move the injection member 122 in a direction away from the injection port 1121, thereby separating the stirring member 121 from the injection member 122.

[0189] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0190] The above provides a detailed description of a bone cement mixing and dispensing assembly, equipment, and method provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A bone cement mixing and injection assembly (100) characterized by, The device includes a housing (110) and a stirring and dispensing mechanism (120). The housing (110) includes a first end (1105) and a second end (1106) opposite to each other. The housing (110) includes a first end cap (112) located at the first end (1105), a second end cap (113) located at the second end (1106), and a cylindrical body (111) extending between the first end (1105) and the second end (1106). The cylindrical body (111) has a first opening (1111) formed at the first end (1105). The cap (112) is movably connected to the cylinder (111) to open or close the first opening (1111). The first end cap (112), the second end cap (113) and the cylinder (111) enclose a receiving cavity (1104) for receiving bone cement components. The first end cap (112) is provided with an injection port (1121) communicating with the receiving cavity (1104). The injection port (1121) is used to connect to one end of the injection tube (130). The other end of the injection tube (130) is used to be inserted into the bone of a human or animal body. The stirring and injecting mechanism (120) includes a stirring component (121), an injecting component (122), and a driving component (123). The injecting component (122) is disposed in the receiving cavity (1104) and is sealed to the inner circumferential surface (1101) of the cylinder (111). The injecting component (122) can move in the direction toward the injection port (1121). The stirring component (121) is disposed between the injecting component (122) and the injection port (1121) and is detachably connected to the injecting component (122). The drive member (123) passes through the second end cap (113) and is threadedly connected to the second end cap (113). One end of the drive member (123) is connected to the injection member (122), and the other end of the drive member (123) is used to receive the first driving force and the second driving force of the power mechanism (200). The driving component (123) is used to reciprocate spirally relative to the second end cap (113) under the drive of the first driving force, thereby driving the injection component (122) and the stirring component (121) to reciprocate spirally to stir the bone cement components and prepare a bone cement mixture. The drive member (123) is used to rotate in a unidirectional spiral relative to the second end cap (113) under the drive of the second driving force, thereby driving the injection member (122) to move in the direction toward the injection port (1121) so as to inject the bone cement mixture into the bone through the injection port (1121) and the injection tubing (130). The first end cap (112) is also provided with a hook (1122), which is located in the receiving cavity (1104). When the driving member (123) drives the stirring member (121) to rotate, the hook (1122) can hook onto the stirring member (121) so that the stirring member (121) can be separated from the injection member (122). The stirring element (121) and the injection element (122) are detachably connected. The stirring element (121) stirs the bone cement components during a first time period. During at least a portion of the first time period, the stirring element (121) and the injection element (122) are connected. During a second time period, the injection element (122) injects the bone cement mixture into the bone through the injection port (1121). During at least a portion of the second time period, the stirring element (121) and the injection element (122) are separated.

2. A bone cement mixing and injection assembly (100) characterized by, The device includes a housing (110) and a stirring and injecting mechanism (120). The housing (110) includes an inner surface (1100) with a receiving cavity (1104) for receiving bone cement components. A first end (1105) of the housing (110) has an injection port (1121) communicating with the receiving cavity (1104). The injection port (1121) is used to connect to one end of an injection tube (130), and the other end of the injection tube (130) is used to be inserted into the bone of a human or animal body. The stirring and injecting mechanism (120) includes a stirring element (121), an injecting element (122), and a driving element (123). The injecting element (122) is disposed in the receiving cavity (1104), and the stirring element (121) is disposed between the injecting element (122) and the injection port (1121). The driving element (123) is used to receive a first driving force from the power mechanism (200) to drive the stirring element (121) to rotate in order to stir the bone cement components and prepare a bone cement mixture. The driving element (123) is also used to receive a second driving force from the power mechanism (200) to drive the injecting element (122) to move in a direction toward the injection port (1121) so as to inject the bone cement mixture into the bone through the injection port (1121) and the injection tube (130). The drive component (123) is threadedly connected to the housing (110), the stirring component (121) is detachably connected to the injection component (122), the stirring component (121) stirs the bone cement components in a first time period, and the stirring component (121) and the injection component (122) are connected in at least a part of the first time period; the injection component (122) injects the bone cement mixture into the bone through the injection port (1121) in a second time period, and the stirring component (121) and the injection component (122) are separated in at least a part of the second time period.

3. A bone cement mixing and injection assembly (100) characterized by, The device includes a housing (110) and a stirring and injecting mechanism (120). The housing (110) includes an inner surface (1100) with a receiving cavity (1104) for receiving bone cement components. One end of the housing (110) has an injection port (1121) communicating with the receiving cavity (1104). The injection port (1121) is used to connect to one end of an injection tube (130), and the other end of the injection tube (130) is used to be inserted into the bone of a human or animal body. The stirring and injecting mechanism (120) includes a stirring element (121), an injecting element (122), and a driving element (123). The injecting element (122) is disposed in the receiving cavity (1104), and the stirring element (121) is disposed between the injecting element (122) and the injection port (1121). The stirring element (121) is connected to the injecting element (122). The driving element (123) is used to drive the injecting element (122) to rotate. The rotation of the injecting element (122) drives the stirring element (121) to rotate, thereby stirring the bone cement components and preparing a bone cement mixture. The driving element (123) is also used to drive the injecting element (122) to move in the direction toward the injection port (1121) so as to inject the bone cement mixture into the bone through the injection port (1121) and the injection tube (130). The drive component (123) is threadedly connected to the housing (110), the stirring component (121) is detachably connected to the injection component (122), the stirring component (121) stirs the bone cement components in a first time period, and the stirring component (121) and the injection component (122) are connected in at least a part of the first time period; the injection component (122) injects the bone cement mixture into the bone through the injection port (1121) in a second time period, and the stirring component (121) and the injection component (122) are separated in at least a part of the second time period.

4. The bone cement mixing and injection assembly (100) according to claim 2 or 3, characterized in that The stirring element (121) includes at least one spring (1210a, 1210b), the deformation direction of which is consistent with the direction of movement of the injection element (122) toward the injection port (1121); the spring (1210a, 1210b) includes a constant diameter spring (1210a) and / or a variable diameter spring (1210b).

5. The bone cement mixing and injection assembly (100) of claim 4, wherein, The outer diameter of the variable diameter spring (1210b) first increases and then decreases in the direction in which the injection member (122) moves toward the injection port (1121).

6. The bone cement mixing and injection assembly (100) of claim 4, wherein, The stirring component (121) includes a plurality of springs (1210a, 1210b); the springs (1210a, 1210b) are connected to the side of the injection component (122) near the injection port (1121).

7. The bone cement mixing and injection assembly (100) according to claim 2 or 3, characterized in that The stirring component (121) is threadedly connected to the injection component (122), and the driving component (123) is also used to drive the injection component (122) to rotate relative to the stirring component (121) so that the injection component (122) and the stirring component (121) are disengaged from the threaded connection state.

8. The bone cement mixing and injection assembly (100) of claim 7, wherein, The injection pusher (122) has a threaded hole (1221) on the side facing the injection port (1121). The stirring member (121) includes a stirring part (1211) and a threaded rod (1212) connected to each other. The threaded rod (1212) is inserted into the threaded hole (1221) and threadedly connected to the inner surface of the threaded hole (1221). The driving member (123) is used to drive the injection pusher (122) to rotate relative to the stirring member (121) so that the threaded rod (1212) is screwed out from the threaded hole (1221).

9. The bone cement mixing and injection assembly (100) of claim 7, wherein, The housing (110) is provided with a hook (1122), which is located in the receiving cavity (1104). The hook (1122) can be hooked with the stirring member (121) so that when the driving member (123) drives the injection member (122) to rotate and / or move in a direction away from the injection port (1121), the stirring member (121) separates from the injection member (122).

10. The bone cement mixing and injection assembly (100) of claim 9, wherein, The inner surface (1100) includes an inner peripheral surface (1101) that seals with the injection member (122), and a first end face (1102) located at the first end (1105) of the housing (110). The injection port (1121) passes through the first end face (1102) and communicates with the receiving cavity (1104). The hook (1122) extends from the first end face (1102) toward the stirring member (121), and the hook (1122) is spaced apart from the inner peripheral surface (1101).

11. The bone cement mixing and dispensing assembly (100) as described in claim 9, characterized in that, The inner surface (1100) includes an inner circumferential surface (1101) that seals with the injection member (122); the hook (1122) includes a connecting portion (1122a) connected to the inner circumferential surface (1101) and a hook portion (1122b) extending from the connecting portion (1122a) toward the stirring member (121), the hook portion (1122b) being spaced apart from the inner circumferential surface (1101).

12. The bone cement mixing and dispensing assembly (100) as described in claim 2 or 3, characterized in that, The housing (110) is detachably connected to the support component (210) of the power mechanism (200); the drive member (123) is detachably connected to the power component (220) of the power mechanism (200), the drive member (123) receives a first driving force from the power component (220) to drive the stirring member (121) to rotate to stir the bone cement components and prepare a bone cement mixture; or, the drive member (123) receives a second driving force from the power component (220) to drive the injection member (122) to move in the direction toward the injection port (1121) to inject the bone cement mixture into the bone through the injection port (1121).

13. The bone cement mixing and dispensing assembly (100) as described in claim 12, characterized in that, The housing (110) includes a second end (1106) opposite to the first end (1105), the second end (1106) being detachably connected to the support member (210); and / or, the drive member (123) passes through the second end (1106) of the housing (110), one end of the drive member (123) being connected to the injection member (122), and the other end of the drive member (123) being detachably connected to the power member (220).

14. The bone cement mixing and dispensing assembly (100) as described in claim 13, characterized in that, The housing (110) includes a cylindrical body (111) extending between the first end (1105) and the second end (1106), a first end cap (112) located at the first end (1105) and a second end cap (113) located at the second end (1106). The inner surface (1100) includes an inner peripheral surface (1101) located inside the cylinder (111), a first end surface (1102) located on the first end cap (112), and a second end surface (1103) located on the second end cap (113). The inner peripheral surface (1101), the first end surface (1102) and the second end surface (1103) enclose the receiving cavity (1104). The first end cap (112) has the injection port (1121), the injection member (122) is sealed to the inner circumferential surface (1101) and can move along the extension direction of the cylinder (111), the driving member (123) passes through the second end cap (113), and the second end cap (113) is used for detachable connection with the support member (210).

15. The bone cement mixing and dispensing assembly (100) as described in claim 13, characterized in that, The driving member (123) is threadedly connected to the second end (1106). The driving member (123) is used to reciprocate spirally relative to the second end (1106) under the drive of the first driving force to drive the stirring member (121) to rotate. The driving member (123) is also used to rotate unidirectionally spirally relative to the second end (1106) under the drive of the second driving force to drive the injection member (122) to move in the direction toward the injection port (1121).

16. The bone cement mixing and dispensing assembly (100) as described in claim 15, characterized in that, The outer peripheral surface of the second end (1106) is provided with a protrusion (1131), the second end (1106) is used to insert into the mounting groove (211) on the support member (210), and the protrusion (1131) is used to insert into the limiting groove (2110) on the inner peripheral surface of the mounting groove (211), so that the housing (110) and the support member (210) are detachably connected; and / or, The driving member (123) includes a driving part (1231), which is slidably mounted in the transmission hole (2210) of the rotating part (221) of the power component (220). When the rotating part (221) rotates around the rotation axis (X), it can drive the driving member (123) to rotate synchronously around the rotation axis (X). The driving part (1231) can move along the rotation axis (X) in the transmission hole (2210) so that the driving member (123) can drive the stirring part (121) to rotate and drive the injection part (122) to move in a direction toward or away from the injection port (1121).

17. The bone cement mixing and dispensing assembly (100) as described in claim 16, characterized in that, The number of the protrusions (1131) is multiple, and the multiple protrusions (1131) are distributed sequentially along the circumference of the second end (1106); and / or, The cross-sectional shape of the drive unit (1231) in the direction perpendicular to the direction of movement of the drive unit (1231) in the transmission hole (2210) is polygonal or plum blossom-shaped.

18. The bone cement mixing and dispensing assembly (100) as described in claim 14, characterized in that, The cylindrical body (111) has a first opening (1111) at the first end (1105), and the first end cap (112) is movably connected to the cylindrical body (111) to open or close the first opening (1111); and / or, the cylindrical body (111) has a second opening (1112) at the second end (1106), and the second end cap (113) is detachably connected to the cylindrical body (111) to open or close the second opening (1112).

19. The bone cement mixing and dispensing assembly (100) as described in claim 18, characterized in that, The bone cement mixing and dispensing assembly (100) further includes a feeding funnel (140), the nozzle (141) of which is used to insert into the first opening (1111) so that the bone cement components enter the receiving cavity (1104) through the feeding funnel (140).

20. A bone cement mixing and dispensing device (10), characterized in that, include: Bone cement mixing and dispensing assembly (100), wherein the bone cement mixing and dispensing assembly (100) is the bone cement mixing and dispensing assembly (100) as described in any one of claims 1 to 19. A power mechanism (200) is used to connect with the drive member (123) of the bone cement mixing and injection assembly (100). The power mechanism (200) is used to apply a first driving force to the drive member (123) and drive the stirring member (121) of the bone cement mixing and injection assembly (100) to stir the bone cement components in the receiving cavity (1104) to prepare a bone cement mixture. The power mechanism (200) is also used to apply a second driving force to the drive member (123) and drive the injection member (122) of the bone cement mixing and injection assembly (100) to move in the direction toward the injection port (1121) to push the bone cement mixture out from the injection port (1121). The injection port (1121) is used to connect to one end of the injection tube (130), and the other end of the injection tube (130) is used to be inserted into the bone of a human or animal body.

21. The bone cement mixing and dispensing equipment (10) as described in claim 20, characterized in that, The drive member (123) of the bone cement mixing and dispensing assembly (100) is threadedly connected to the second end (1106) of the housing (110) away from the injection port (1121). The first driving force applied by the power mechanism (200) is used to drive the drive member (123) to reciprocate in a spiral rotation, thereby driving the mixing member (121) to reciprocate in a rotation to mix the bone cement components.

22. The bone cement mixing and dispensing equipment (10) as described in claim 20, characterized in that, The power mechanism (200) includes a support component (210) and a power component (220). The support component (210) is detachably connected to the housing (110) of the bone cement mixing and dispensing assembly (100). The power component (220) is detachably connected to the drive component (123) and is used to apply the first driving force and the second driving force to the drive component (123).

23. The bone cement mixing and dispensing equipment (10) as described in claim 22, characterized in that, The support component (210) includes a mounting groove (211), the inner circumferential surface of which is provided with a limiting groove (2110). The second end (1106) of the housing (110) of the bone cement mixing and dispensing assembly (100) is used to insert into the mounting groove (211), so that the housing (110) is detachably connected to the support component (210); and / or, The power component (220) includes a rotating component (221) capable of rotating about a rotation axis (X). The rotating component (221) has a transmission hole (2210). The driving part (1231) of the driving component (123) is slidably installed in the transmission hole (2210). When the rotating component (221) rotates about the rotation axis (X), it can drive the driving component (123) to rotate synchronously about the rotation axis (X). The driving part (1231) can move along the rotation axis (X) within the transmission hole (2210).

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