CN219129040U

CN219129040U - Bone cement stirring device, equipment and system

Info

Publication number: CN219129040U
Application number: CN202223242270.2U
Authority: CN
Inventors: 张梦诚; 董柯; 丁正; 武晗; 张鹏; 刘梦星
Original assignee: Wuhan Mindray Technology Co Ltd
Current assignee: Wuhan Mindray Technology Co Ltd
Priority date: 2022-12-02
Filing date: 2022-12-02
Publication date: 2023-06-06
Anticipated expiration: 2032-12-02

Abstract

The application discloses bone cement agitating unit, equipment and system belongs to medical instrument technical field, and this bone cement agitating unit includes: a housing defining an interior cavity for receiving a bone cement composition; the stirring part is arranged in the inner cavity; the driving part is used for driving the stirring part to synchronously perform the first movement and the second movement so as to stir the bone cement components and prepare a bone cement mixture; wherein the first movement is rotation of the stirring part around the rotation axis, and the second movement is movement of the stirring part along the rotation axis. The stirring part of the bone cement stirring device can rotate around the rotation axis in the inner cavity and synchronously move along the rotation axis under the drive of the driving part, so that bone cement components in the inner cavity can be synchronously stirred in two dimensions of the rotation direction and the movement direction, the stirring efficiency is improved, the mixing degree is enhanced, the bone cement is fully reacted, and the strength of the solidified bone cement is ensured.

Description

Bone cement stirring device, equipment and system

Technical Field

The application belongs to the technical field of medical equipment, and particularly relates to a bone cement stirring device, equipment and a system.

Background

Vertebroplasty refers to a spinal surgery in which bone cement is injected into a vertebral body through a pedicle or the like to strengthen the strength and stability of a fractured vertebral body, support the vertebral body, and relieve pain. The most commonly used bone cement in current surgery is polymethyl methacrylate (PMMA) produced by mixing polymer powder and liquid monomer in a certain ratio by thorough stirring, and reacting for several minutes. From the beginning to the end of the reaction, methyl methacrylate is continuously polymerized with the fully stirred and mixed bone cement powder and liquid, the reaction generates the irritant toxic gas, the bone cement mixture is gradually changed from sparse to thick, then the bone cement mixture is manually transferred into a bone cement injection device, finally, the bone cement mixture is injected into a vertebral body through the injection device, and is completely solidified in the vertebral body.

At present, bone cement is mixed mostly by manually holding a stirring rod in a mixing container to stir or shake uniformly, and then the mixture is transferred to an injection instrument for subsequent injection. In this mode, the degree of mixing of the bone cement fluctuates greatly, and insufficient mixing causes insufficient reaction of the bone cement, resulting in insufficient strength of the cured bone cement.

Disclosure of Invention

The utility model aims to: the embodiment of the application provides a bone cement stirring device, which aims to solve the technical problems that in the existing stirring mode, the mixing degree of bone cement fluctuates greatly, the mixing degree is insufficient, so that the bone cement is insufficient in reaction, and the strength of the cured bone cement is insufficient; it is another object of embodiments of the present application to provide a bone cement stirring device; it is a third object of embodiments of the present application to provide a bone cement stirring system.

The technical scheme is as follows: the embodiment of the application provides a bone cement stirring device, includes:

a housing defining an interior cavity for receiving a bone cement component;

the stirring part is arranged in the inner cavity;

a driving part for driving the stirring part to synchronously perform a first motion and a second motion so as to stir the bone cement components to prepare a bone cement mixture;

wherein the first movement is rotation of the stirring part around a rotation axis, and the second movement is movement of the stirring part along the rotation axis.

In some embodiments, the housing comprises:

a housing body surrounding the interior cavity;

the first end cover is arranged at one end of the shell body and is provided with an assembly channel which is communicated with the inner cavity;

the driving part is arranged in the assembly channel in a penetrating way and is in threaded connection with the first end cover, so that when the driving part receives a rotary driving force, the driving part can rotate around the rotary axis of the driving part relative to the first end cover and synchronously move along the direction of the rotary axis, and the stirring part synchronously performs the first movement and the second movement.

In some embodiments, the drive portion is provided with external threads, the first end cap is provided with internal threads, the internal threads are arranged around the assembly channel, the drive portion is arranged in the assembly channel in a penetrating manner, and the external threads are connected with the internal threads;

when the driving portion receives a driving force of rotation, the male screw is rotatable about the rotation axis with respect to the female screw and synchronously moves in a direction of the rotation axis, so that the driving portion drives the stirring portion to synchronously perform the first movement and the second movement.

In some embodiments, the first end cap includes a cap body connected to the case body, the fitting channel is penetratingly provided to the cap body, and two wing portions symmetrically provided to both sides of the cap body.

In some embodiments, the bone cement stirring device further comprises a bolus portion disposed in the lumen and connected to the drive portion;

the housing has oppositely disposed first and second ends in the direction of the axis of rotation, the first end cap being located at the first end, the second end having an injection port communicating with the lumen;

When the driving part receives the driving force of rotation, the driving part can drive the pushing part to move along the direction of the rotation axis so as to inject the bone cement mixture in the inner cavity into bones from the injection port.

In some embodiments, the bolus portion is disposed at one end of the drive portion and is connected between the drive portion and the stirring portion;

when the driving part receives the driving force of rotation, the driving part can drive the pushing part to rotate around the rotation axis and synchronously move along the direction of the rotation axis so as to drive the stirring part to synchronously perform the first movement and the second movement.

In some embodiments, the drive portion is disposed through the bolus portion;

the stirring part is positioned at one side of the pushing part far away from the first end cover and is arranged at one end of the driving part.

In some embodiments, the pushing part and the inner wall of the shell are arranged at intervals, the pushing part is provided with an assembling groove along the circumference of the pushing part, a sealing element is arranged in the assembling groove, and the sealing element forms a seal between the pushing part and the inner wall.

In some embodiments, the shell body is provided with a feed port communicating with the inner cavity;

the shell further comprises a second end cover which is arranged opposite to the first end cover in the direction of the rotation axis, the injection port is arranged on the second end cover, the second end cover is movably connected with the shell main body, and the second end cover can move between a first position and a second position relative to the shell main body;

wherein, in the first position, the second end cap opens the feed port to enable the bone cement component to be delivered to the interior cavity through the feed port;

in the second position, the second end cap closes the feed port.

In some embodiments, the drive portion is provided with a drive joint located outside the housing for transmitting the received drive force to the drive portion to enable the drive portion to drive the stirring portion to perform the first and second movements simultaneously.

The embodiment of the application provides a bone cement stirring device, includes:

a housing defining an interior cavity for receiving a bone cement component;

the stirring part is arranged in the inner cavity;

A driving part for driving the stirring part to perform a first movement and a second movement to stir the bone cement components to prepare a bone cement mixture;

In some embodiments, the driving part includes:

a first driving shaft, the stirring part is installed at one end of the first driving shaft;

the rolling bearing is sleeved on the periphery of the first driving shaft;

the second driving shaft is sleeved on the periphery of the rolling bearing and is connected with the first driving shaft through the rolling bearing;

the first driving shaft is capable of driving the stirring portion to perform the first movement when the first driving shaft receives a rotational driving force;

when the second driving shaft receives the rotating driving force, the second driving shaft can drive the first driving shaft to move along the direction of the rotating axis of the second driving shaft so as to drive the stirring part to perform the second movement.

In some embodiments, the housing comprises:

A housing body surrounding the interior cavity;

the second driving shaft penetrates through the assembly channel and is in threaded connection with the first end cover, so that when the second driving shaft receives a rotating driving force, the second driving shaft can rotate around the rotating axis relative to the first end cover and move along the direction of the rotating axis, and the first driving shaft is driven to move along the direction of the rotating axis, so that the stirring part is driven to perform the second movement.

In some embodiments, the second drive shaft is provided with external threads, the first end cap is provided with internal threads, the internal threads are arranged around the assembly channel, the second drive shaft is arranged in the assembly channel in a penetrating manner, and the external threads are connected with the internal threads;

when the second driving shaft receives the driving force of rotation, the external thread can rotate around the rotation axis relative to the internal thread and synchronously move along the direction of the rotation axis, so that the second driving shaft drives the first driving shaft to move along the direction of the rotation axis, and the stirring part is driven to perform the second movement.

when the second driving shaft receives the driving force of rotation, the second driving shaft can drive the pushing injection part to move along the direction of the rotation axis so as to inject the bone cement mixture in the inner cavity into bones from the injection port.

in the second position, the second end cap closes the feed port.

Accordingly, a bone cement stirring device according to embodiments of the present application includes:

a power means for providing a driving force for rotation about an axis of rotation;

and the limiting device is arranged on one side of the power device in the direction of the rotation axis and is used for limiting in the direction of the driving force and in the direction along the rotation axis.

In some embodiments, the power device comprises a power output shaft provided with a receiving cavity extending axially therealong, the receiving cavity being operable to receive a drive joint of a bone cement stirring device;

The accommodating cavity is matched with the shape of the transmission joint, so that the power output shaft can synchronously move along the axial direction of the accommodating cavity when driving the transmission joint to rotate.

In some embodiments, the spacing device comprises:

the base is provided with a limiting cavity and a sliding block channel, the sliding block channel is communicated with the limiting cavity, and the limiting cavity is used for limiting in the direction of the driving force;

and the limiting slide block can be inserted into the limiting cavity from the slide block channel so as to limit in the direction of the rotating axis.

In some embodiments, the spacing cavity comprises a main cavity and two side cavities that are in communication with each other, the side cavities being symmetrically disposed on both sides of the main cavity.

Accordingly, a bone cement stirring system according to embodiments of the present application includes:

the bone cement stirring device according to any one of the embodiments above, and,

a power device for driving the driving part to drive the stirring part to synchronously perform the first movement and the second movement;

and the limiting device is used for limiting the shell in the movement directions of the first movement and the second movement.

In some embodiments, the power plant comprises a power take-off shaft provided with a receiving cavity extending axially thereof for receiving the drive joint of the drive section;

the transmission joint is matched with the shape of the accommodating cavity, so that the power output shaft can synchronously move along the axial direction of the accommodating cavity when driving the driving part to rotate.

In some embodiments, the spacing device comprises:

the base is provided with a limiting cavity and a sliding block channel, and the sliding block channel is communicated with the limiting cavity; the shell can penetrate through the limiting cavity so as to limit the shell in the movement direction of the first movement through the limiting cavity;

and the limiting slide block can be inserted into the limiting cavity from the slide block channel so as to limit the shell in the movement direction of the second movement.

In some embodiments, the limiting cavity comprises a main cavity and two side cavities which are communicated with each other, and the side cavities are symmetrically arranged at two sides of the main cavity;

when the shell penetrates through the limiting cavity, the cover main body of the shell is located in the main cavity, and the side wing parts of the shell are located in the side cavities.

The beneficial effects are that: compared with the prior art, the bone cement stirring device of this application embodiment includes: a housing defining an interior cavity for receiving a bone cement composition; the stirring part is arranged in the inner cavity; the driving part is used for driving the stirring part to synchronously perform the first movement and the second movement so as to stir the bone cement components and prepare a bone cement mixture; wherein the first movement is rotation of the stirring part around the rotation axis, and the second movement is movement of the stirring part along the rotation axis. The stirring part of the bone cement stirring device can rotate around the rotation axis in the inner cavity and synchronously move along the rotation axis under the drive of the driving part, so that bone cement components in the inner cavity can be synchronously stirred in two dimensions of the rotation direction and the movement direction, the stirring efficiency is improved, the mixing degree is enhanced, the bone cement is fully reacted, and the strength of the solidified bone cement is ensured.

Compared with the prior art, the bone cement stirring equipment comprises a power device and a limiting device, wherein the power device is used for providing a driving force for rotating around a rotation axis; the limiting device is arranged on one side of the power device in the direction of the rotation axis and is used for limiting in the direction of the driving force and in the direction along the rotation axis. The bone cement stirring equipment provides driving force through the power device, is limited in the direction of the driving force and the direction of the rotation axis through the limiting device, can be applied to the bone cement stirring device of the embodiment of the application, realizes full-automatic stirring of two dimensions of the bone cement stirring device, can improve stirring efficiency on one hand, strengthens mixing degree, enables bone cement to react fully, and ensures the strength of the cured bone cement; on the other hand, the labor occupation can be reduced, and the injury to human body in the bone cement preparation process is reduced.

Compared with the prior art, the bone cement stirring system of the embodiment of the application comprises: the bone cement stirring device and the power device are used for driving the driving part so that the driving part drives the stirring part to synchronously perform the first movement and the second movement; and the limiting device is used for limiting the shell in the movement direction of the first movement and the second movement. According to the bone cement stirring system, the power device and the limiting device are arranged, the power device is used for providing power, automatic stirring of the bone cement stirring device is achieved, and the limiting device is used for limiting the shell of the bone cement stirring device during stirring, so that on one hand, the influence of manual stirring on the mixing degree can be reduced, and on the other hand, the influence of toxic gas generated by the reaction of bone cement components on a human body can be reduced; and through changing bone cement agitating unit, can realize taking bone cement agitating unit as consumptive material disposable, power device and stop device used repeatedly, reduce operation cost, improve operation efficiency and effect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a bone cement stirring device according to a first embodiment of the present application;

FIG. 2 is a schematic view of the bone cement stirring device of FIG. 1 taken along the axis of rotation AA';

FIG. 3 is an enlarged schematic view of the area B in FIG. 2;

fig. 4 is another sectional structural schematic view of a bone cement stirring device according to a first embodiment of the present application;

FIG. 5 is a schematic view of the bone cement stirring device of FIG. 1 in a bottom view;

fig. 6 is a schematic structural view of a bone cement stirring device according to a second embodiment of the present application;

FIG. 7 is a schematic structural view of a bone cement stirring device according to an embodiment of the present application;

FIG. 8 is a schematic top view of the power take-off shaft of the bone cement stirring device of FIG. 7;

FIG. 9 is a schematic diagram of a bone cement stirring system according to an embodiment of the present application;

FIG. 10 is a schematic view of a partial structure of a bone cement stirring system according to an embodiment of the present application, taken along the axis of rotation AA';

FIG. 11 is a schematic partial top view of a bone cement stirring system according to an embodiment of the present application;

reference numerals: 10-bone cement stirring device; 100-a housing; 101-lumen; 102-a first end; 103-a second end; 104-an injection port; 105-inner wall; 106-a shell body; 1061-a feed inlet; 107-a second end cap; 108-a first end cap; 1081-a cap body; 1082-side flap portion; 1083-fitting channel; 110-a driving part; 1101-first drive shaft; 1102-rolling bearings; 1103-a second drive shaft; 111-bolus section; 112-a drive joint; 113-a seal; 114-gap; 120-stirring part; 121-a connector; 20-bone cement stirring equipment; 210-a power plant; 211-a power output shaft; 2111-accommodating chambers; 220-a limiting device; 221-a base; 222-a limiting cavity; 2221-main lumen; 2222-side lumen; 223-limiting slide block; 200-a housing; AA' -axis of rotation.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

In the description of the present application, it should be understood that the terms "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more features. In the description of the present application, the meaning of "a plurality" is two or more, and at least one means may be one, two or more, unless explicitly defined otherwise.

The applicant notes that in the prior art, most of the bone cement mixing methods use a manually held stirring rod to stir or shake uniformly in a mixing container, and the stirring is transferred to an injection device for subsequent injection. Firstly, the method enables operators to be exposed in a toxic gas environment, which is not beneficial to human health; secondly, the mixing degree of the bone cement is greatly influenced by people, and the insufficient mixing strength of partial people leads to insufficient bone cement reaction and low mixing efficiency, so that the cured bone cement has insufficient strength; meanwhile, the operation of the process of transferring the bone cement in the operation is inconvenient, such as improper operation, which easily causes leakage and waste of the bone cement and affects the operation progress.

In addition, there are also methods for electrically mixing bone cement in small parts, in which a motor is used to drive a stirring blade to stir in rotation, and the bone cement is electrically conveyed to a syringe for injection while stirring. This solution, while solving some of the problems, still has some drawbacks. Firstly, the mixing injection tank and the electric drive equipment cannot be disassembled, the cost is high, and the electric drive equipment cannot be used secondarily; secondly, the scheme adopts directional conveying and transferring of bone cement after rotary stirring, and controls mixing and conveying switches by setting travel difference, so that the structure is complex, and the situation that part of bone cement is transferred to an injector without mixing, so that the bone cement strength is insufficient and the operation effect is affected is possible; simultaneously, because bone cement mixing injection tank and syringe divide into two chambeies, each chamber all has dead space volume, leads to bone cement extravagant more.

In view of the foregoing, embodiments of the present application disclose a bone cement stirring device, apparatus, system and method, which aim to overcome at least one of the above-mentioned technical problems.

First, the bone cement stirring device 10 according to the embodiment of the present application will be described. Referring to fig. 1 and 2 together, fig. 1 illustrates a structure of a bone cement stirring device according to a first embodiment of the present application, and fig. 2 illustrates a structure of the bone cement stirring device of fig. 1 cut along a rotation axis AA'; it can be seen that in the first embodiment, the bone cement stirring device 10 mainly includes a housing 100, a driving part 110, and a stirring part 120.

Wherein the housing 100 defines an inner cavity 101, the inner cavity 101 being adapted to receive the bone cement composition, that is to say the housing 100 has an interior with a receiving space for receiving the bone cement composition.

The stirring part 120 is arranged in the inner cavity 101, and the stirring part 120 is used for stirring the bone cement components to prepare a bone cement mixture;

in particular, in the first embodiment, the driving part 110 is used to drive the stirring part 120 to perform the first and second motions simultaneously to stir the bone cement components, preparing the bone cement mixture; the first movement is rotation of the stirring portion 120 around the rotation axis AA ', and the second movement is movement of the stirring portion 120 along the rotation axis AA'.

It can be appreciated that the stirring portion 120 of the bone cement stirring device 10 can rotate around the rotation axis AA 'in the inner cavity 101 and synchronously move along the rotation axis AA' under the driving of the driving portion 110, so that the bone cement components in the inner cavity 101 can be synchronously stirred in two direction dimensions of the rotation direction and the movement direction, the stirring efficiency is improved, the mixing degree is enhanced, the bone cement is fully reacted, and the strength of the cured bone cement is ensured.

Referring again to fig. 2, in some embodiments, the housing 100 includes a housing body 106 and a first end cap 108, the housing body 106 surrounding the interior cavity 101, the first end cap 108 being disposed at one end of the housing body 106, the first end cap 108 being provided with a fitting channel 1083, the fitting channel 1083 being in communication with the interior cavity 101.

The shell body 106 and the first end cap 108 may be formed as a single piece, i.e., they may be formed integrally, or may be formed as separate pieces, and the shell body 106 and the first end cap 108 may be formed separately and then assembled to form the shell 100. In order to facilitate assembly of the housing 100 with the driving portion 110 and the stirring portion 120, in the embodiment of the present application, the housing 100 is preferably a split structure, that is, the housing body 106 and the first end cap 108 are independent from each other, and may be connected by threads, a buckle, or the like.

In the first embodiment, the driving portion 110 is threaded in the fitting channel 1083 and is connected with the first end cap 108, so that when the driving portion 110 receives the driving force of rotation, the driving portion 110 can rotate around the rotation axis AA ' of the driving portion 110 and synchronously move along the rotation axis AA ' relative to the first end cap 108, so that the stirring portion 120 synchronously performs the first movement and the second movement by utilizing the characteristic that the threads rotate and can also feed along the rotation axis AA '.

The stirring part 120 synchronously performs the movement of the first movement and the second movement in two dimensions in a threaded connection mode, so that the stirring in two dimensions is realized, the structure is simple, the manufacturing and processing cost is low, and the stirring device is suitable for being used as medical consumables.

Specifically, in the first embodiment, the driving portion 110 is provided with external threads, the first end cap 108 is provided with internal threads, the internal threads are disposed around the assembly channel 1083, the driving portion 110 is disposed through the assembly channel 1083, and the external threads are connected with the internal threads; when the driving part 110 receives the driving force of the rotation, the external screw thread can rotate around the rotation axis AA 'with respect to the internal screw thread and synchronously move along the direction of the rotation axis AA', so that the driving part 110 drives the stirring part 120 to synchronously perform the first and second movements.

Alternatively, in some embodiments, although not illustrated, external threads may be provided on the first end cap 108, and internal threads may be provided on the driving portion 110, and the above-described stirring in two directions may be achieved by matching the external threads with the internal threads. Specifically, a tubular structure may be integrally provided at the first end cap 108, an inner pipe of the tubular structure forms an assembly channel 1083 communicating with the inner cavity 101, an external thread is provided on an outer surface of the tubular structure, and accordingly, the driving part 110 includes a driving rod and a sleeve, the driving rod is movably disposed in the assembly channel 1083 in a penetrating manner, the sleeve is sleeved on an outer periphery of the driving rod, one end of the sleeve is fixedly connected with the driving rod, a space into which the tubular structure is inserted is provided between the rest of the sleeve and a surface of the driving rod, and an internal thread is provided on an inner surface of the sleeve, so that the driving part 110 and the first end cap 108 can be in threaded engagement by screwing the sleeve to the tubular structure, and further, when the driving part 110 receives a rotational driving force, the external thread can rotate around a rotational axis AA 'relative to the internal thread and synchronously move along a direction of the rotational axis AA', so that the driving part 110 drives the stirring part 120 to synchronously perform the first movement and the second movement.

Further, in the first embodiment, the bone cement stirring device 10 further includes a pushing portion 111, and the pushing portion 111 is disposed in the inner cavity 101 and connected to the driving portion 110; the bolus 111 is used to inject the bone cement mixture in the cavity 101 directly into the bone. The housing 100 has a first end 102 and a second end 103 arranged opposite to each other in the direction of the axis of rotation AA', a first end cap 108 being located at the first end 102, an injection port 104 being provided at the second end 103 for communicating with the cavity 101; when the driving part 110 receives the driving force of rotation, the driving part 110 can drive the pushing part 111 to move along the direction of the rotation axis AA' so as to inject the bone cement mixture in the inner cavity 101 into the bone from the injection port 104. By arranging the pushing injection part 111 and driving the pushing injection part 111 by using the driving part 110, injection of the bone cement mixture can be realized in the bone cement stirring device 10, so that preparation and injection of the bone cement mixture in the same cavity are realized, the bone cement mixture prepared by stirring is not required to be transferred, toxic gas overflow in the transfer process is reduced, the dead space is also reduced, and waste of the bone cement mixture is avoided.

Specifically, referring to fig. 2 and 3 together, fig. 3 illustrates an enlarged structure of the region B in fig. 2; in some embodiments, the bolus portion 111 is disposed at one end of the drive portion 110, i.e., at one end of the drive portion 110 within the lumen 101, and the bolus portion 111 is connected between the drive portion 110 and the stirring portion 120. When the driving part 110 receives the driving force of rotation, the driving part 110 can drive the injection part 111 to rotate around the rotation axis AA 'and synchronously move along the direction of the rotation axis AA', so as to drive the stirring part 120 to synchronously perform the first movement and the second movement. It will be appreciated that the injector 111 forms a piston structure within the cavity 101, and that the injector 111 may push the bone cement mixture within the cavity 101 out of the injection port 104 by driving the injector 111 in the direction of the axis of rotation AA' via the drive 110.

Further, an installation groove may be provided on the side of the injection port 104 with respect to the injection part 111, and a connector 121 may be installed in the installation groove, so that the stirring part 120 is connected to the injection part 111 via the connector 121. In this embodiment, the connector 121 is screwed to the mounting groove, and the stirring section 120 is inserted into the connector 121.

It will be appreciated that upon injection, as the bolus 111 moves, the stirring section 120 is compressed, pushing out the bone cement mixture in the cavity 101. Accordingly, the stirring section 120 may be provided in an elastically compressible structure, for example, the stirring section 120 may be provided in a spiral spring-like structure, or the stirring section 120 may be made of a flexible compressible material, and is not particularly limited herein.

Specifically, referring to fig. 4, fig. 4 illustrates another cross-sectional structure of the bone cement stirring device 10 according to the first embodiment of the present application, in which the driving part 110 is disposed through the injecting part 111, the stirring part 120 is located at a side of the injecting part 111 away from the first end cover 108, and the stirring part 120 is directly mounted at one end of the driving part 110.

Referring again to fig. 3, in some embodiments, the injection part 111 is spaced from the inner wall 105 of the housing 100, the injection part 111 is provided with a fitting groove 115 along its circumference, and a sealing member 113 is provided in the fitting groove 115, and the sealing member 113 forms a seal between the injection part 111 and the inner wall 105. By arranging the pushing portion 111 at an interval from the inner wall 105 of the housing 100 to form the gap 114 therebetween, the defect that the pushing portion 111 and the inner wall 105 are in direct contact and thus have large friction and are not easy to move relatively can be effectively avoided. By providing the sealing member 113 to seal the bolus portion 111 and the inner wall 105, friction is reduced, and stirring and injection efficiency is improved. It will be appreciated that since the sealing member 113 is disposed in the fitting groove 115 provided on the circumferential side of the injection part 111, the contact area between the sealing member 113 and the inner wall 105 is smaller than the circumferential side area of the injection part 111, and thus the friction with the inner wall 105 is greatly reduced.

Referring again to fig. 1 and 2, in the first embodiment, the shell body 106 is further provided with a feed port 1061 communicating with the inner cavity 101; bone cement components may be injected into the cavity 101 through the inlet port 1061. The housing 100 further comprises a second end cap 107 arranged opposite the first end cap 108 in the direction of the rotation axis AA', the injection port 104 being arranged on the second end cap 107, the second end cap 107 being movably connected to the housing body 106 such that the second end cap 107 is movable relative to the housing body 106 between a first position and a second position; wherein, in the first position, the second end cap 107 opens the feed port 1061 to enable the introduction of the bone cement composition into the interior cavity 101 through the feed port 1061; in the second position, the second end cap 107 closes the feed port 1061. Through setting up second end cover 107, can open second end cover 107 to pour into bone cement component into inner chamber 101, also can close second end cover 107, in order to stir and inject, in the aspect of the use, simple structure, low in manufacturing cost is applicable to the application of medical instrument consumptive material.

Referring to fig. 1 and 2 again, in the first embodiment, the driving portion 110 is provided with a transmission joint 112, the transmission joint 112 is located outside the housing 100, and the transmission joint 112 is used for transmitting the received driving force to the driving portion 110, so that the driving portion 110 can drive the stirring portion 120 to perform the first movement and the second movement synchronously.

By providing the driving part 110 of the bone cement stirring device 10 with the transmission joint 112, the driving device 210 of the bone cement stirring device 20 can be matched, so that the driving device 210 provides a rotary driving force for the driving part 110, and the stirring part 120 synchronously performs the first movement and the second movement, thereby realizing automatic stirring and injection.

Further, referring to fig. 5, fig. 5 illustrates a bottom view of the bone cement stirring device 10 of the first embodiment in fig. 1, it is seen that in the first embodiment, the first end cover 108 may include a cover main body 1081 and two side wing portions 1082, the cover main body 1081 is connected with the housing main body 106, the assembly channel 1083 is disposed through the cover main body 1081, and the side wing portions 1082 are symmetrically disposed on two sides of the cover main body 1081.

By providing two side wings 1082 on the first end cap 108 of the housing 100 of the bone cement stirring device 10, it may be used to cooperate with the stop 220 of the bone cement stirring device 20 to stop the housing 100 in the direction of movement of the first and second motions during automatic stirring and injection.

Of course, in some embodiments, the bone cement stirring device 10 may optionally be provided with the above-described functionality, for example, the bone cement stirring device 10 may include a housing 100, a stirring portion 120, a driving portion 110, and a bolus portion 111. The housing 100 defines an interior cavity 101, the interior cavity 101 for receiving a bone cement composition; the stirring part 120 is arranged in the inner cavity 101; the driving part 110 is used for driving the stirring part 120 to synchronously perform a first motion and a second motion so as to stir bone cement components and prepare a bone cement mixture; the first movement is rotation of the stirring portion 120 about the rotation axis, and the second movement is movement of the stirring portion 120 along the rotation axis. The housing 100 includes a housing body 106 and a first end cap 108, the housing body 106 surrounds the inner cavity 101, the first end cap 108 is disposed at one end of the housing body 106, the first end cap 108 is provided with a fitting channel 1083, and the fitting channel 1083 is communicated with the inner cavity 101; the driving part 110 is inserted into the fitting passage 1083 and is screw-coupled with the first end cap 108, such that when the driving part 110 receives a rotational driving force, the driving part 110 can rotate around a rotation axis of the driving part 110 with respect to the first end cap 108 and synchronously move in a direction along the rotation axis, so that the stirring part 120 synchronously performs the first and second movements. The injection part 111 is arranged in the inner cavity 101 and is connected with the driving part 110; the housing 100 has a first end 102 and a second end 103 arranged opposite to each other in the direction of the rotation axis, a first end cap 108 being located at the first end 102, an injection port 104 being provided at the second end 103 for communicating with the inner cavity 101; when the driving part 110 receives the driving force of rotation, the driving part 110 can drive the pushing part 111 to move along the direction of the rotation axis, so as to inject the bone cement mixture in the inner cavity 101 into the bone from the injection port 104.

It can be appreciated that the stirring portion 120 of the bone cement stirring device 10 can rotate around the rotation axis AA 'in the inner cavity 101 and synchronously move along the rotation axis AA' under the driving of the driving portion 110, so that the bone cement components in the inner cavity 101 can be synchronously stirred in two direction dimensions of the rotation direction and the movement direction, the stirring efficiency is improved, the mixing degree is enhanced, the bone cement is fully reacted, and the strength of the cured bone cement is ensured. By arranging the pushing injection part 111 and driving the pushing injection part 111 by using the driving part 110, injection of the bone cement mixture can be realized in the bone cement stirring device 10, so that preparation and injection of the bone cement mixture in the same cavity are realized, the bone cement mixture prepared by stirring is not required to be transferred, toxic gas overflow in the transfer process is reduced, the dead space is also reduced, and waste of the bone cement mixture is avoided.

Referring to fig. 6, fig. 6 illustrates a structure of a bone cement stirring device according to a second embodiment of the present application; similar to the first embodiment, in the second embodiment, the bone cement stirring device 10 mainly includes a housing 100, a driving part 110, and a stirring part 120. Wherein the housing 100 defines an inner cavity 101, the inner cavity 101 being adapted to receive the bone cement composition, that is to say the housing 100 has an interior with a receiving space for receiving the bone cement composition. The stirring part 120 is arranged in the inner cavity 101, and the stirring part 120 is used for stirring the bone cement components to prepare a bone cement mixture;

In particular, unlike the first embodiment, in the second embodiment, the driving part 110 is used to drive the stirring part 120 to perform the first and second motions to stir the bone cement components, preparing the bone cement mixture; the first movement is rotation of the stirring portion 120 around the rotation axis AA ', and the second movement is movement of the stirring portion 120 along the rotation axis AA'.

Specifically, in the second embodiment, the driving portion 110 includes a first driving shaft 1101, a rolling bearing 1102, and a second driving shaft 1103, the stirring portion 120 is mounted at one end of the first driving shaft 1101, the rolling bearing 1102 is sleeved on the outer periphery of the first driving shaft 1101, and the second driving shaft 1103 is sleeved on the outer periphery of the rolling bearing 1102 and is connected to the first driving shaft 1101 through the rolling bearing 1102; that is, the first driving shaft 1101 is directly connected to the stirring portion 120, the second driving shaft 1103 has a hollow structure, and the first driving shaft 1101 is disposed through the second driving shaft 1103 and is connected to the second driving shaft 1103 through the rolling bearing 1102. When the first driving shaft 1101 receives the rotational driving force, the first driving shaft 1101 can drive the stirring section 120 to perform the first movement, and when the second driving shaft 1103 receives the rotational driving force, the second driving shaft 1103 can drive the first driving shaft 1101 to move along the direction of the rotation axis AA' of the second driving shaft 1103 through the rolling bearing 1102 to drive the stirring section 120 to perform the second movement.

It will be appreciated that in the second embodiment, the rotational driving forces may be applied to the first driving shaft 1101 and the second driving shaft 1103 simultaneously, so that the stirring section 120 can perform the first movement and the second movement simultaneously. The stirring portion 120 may be sequentially subjected to the first movement and the second movement by sequentially applying a rotational driving force to the first driving shaft 1101 and the second driving shaft 1103. That is, in the second embodiment, unlike the first embodiment, the first movement and the second movement may be performed simultaneously or stepwise, but both of them can achieve stirring in two directions, improving the strength of stirring, making the mixing of the bone cement components more uniform, and improving the properties of the bone cement mixture.

Further, in the second embodiment, the housing 100 includes a housing body 106 and a first end cap 108, the housing body 106 surrounds the inner cavity 101, the first end cap 108 is disposed at one end of the housing body 106, the first end cap 108 is provided with a fitting channel 1083, and the fitting channel 1083 communicates with the inner cavity 101.

The shell body 106 and the first end cap 108 may be formed as a single piece, i.e., they may be formed integrally, or may be formed as separate pieces, and the shell body 106 and the first end cap 108 may be formed separately and then assembled to form the shell 100. In order to facilitate assembly of the housing 100 with the driving portion 110 and the stirring portion 120, in this embodiment, the housing 100 is preferably a split structure, that is, the housing body 106 and the first end cap 108 are independent from each other, and may be connected by threads, a buckle, or the like.

In the second embodiment, the second driving shaft 1103 is disposed through the assembly channel 1083 and is screwed with the first end cap 108, such that when the second driving shaft 1103 receives a rotational driving force, the second driving shaft 1103 can rotate around the rotation axis AA ' and move along the rotation axis AA ' relative to the first end cap 108, so as to drive the first driving shaft 1101 to move along the rotation axis AA ', and further drive the stirring portion to perform a second movement.

The screw connection mode is set, the universality of parts can be realized with the first embodiment, the production of consumable materials with two different structures can be realized only by replacing the structure of the driving part 110, the occupation of a production line can be saved, and the processing and manufacturing cost is reduced.

Specifically, in the second embodiment, the second driving shaft 1103 is provided with external threads, the first end cap 108 is provided with internal threads, the internal threads are disposed around the fitting passage 1083, the second driving shaft 1103 is disposed through the fitting passage 1083, and the external threads are connected with the internal threads; when the second driving shaft 1103 receives the driving force of rotation, the external screw thread can rotate around the rotation axis AA ' and synchronously move along the direction of the rotation axis AA ' relative to the internal screw thread, so that the second driving shaft 1103 drives the first driving shaft 1101 to move along the direction of the rotation axis AA ', and further drives the stirring section 120 to perform the second movement.

Alternatively, in some embodiments, although not illustrated, an external thread may be provided on the first end cap 108, and an internal thread may be provided on the second drive shaft 1103, and the external thread and the internal thread are coupled in a matching manner, thereby achieving the effect of driving the stirring portion 120 to perform the second movement. Specifically, a tubular structure may be integrally provided at the first end cap 108, an inner pipe of the tubular structure forms an assembly channel 1083 communicating with the inner cavity 101, an external thread is provided on an outer surface of the tubular structure, and accordingly, the second driving shaft 1103 includes a driving rod and a sleeve, the driving rod is movably disposed in the assembly channel 1083 in a penetrating manner, the sleeve is sleeved on an outer periphery of the driving rod, one end of the sleeve is fixedly connected with the driving rod, a space into which the tubular structure is inserted is provided between the rest of the sleeve and a surface of the driving rod, and an internal thread is provided on an inner surface of the sleeve, so that by screwing the sleeve to the tubular structure, a threaded engagement between the second driving shaft 1103 and the first end cap 108 can be achieved, and further, when the second driving shaft 1103 receives a rotational driving force, the external thread can rotate around a rotational axis AA ' and synchronously move along the rotational axis AA ', and the second driving shaft 1103 drives the first driving shaft AA to move along the rotational axis AA ' and further drives the stirring portion 120 to perform a second movement.

Further, in the second embodiment, the bone cement stirring device 10 further includes a pushing portion 111, and the pushing portion 111 is disposed in the inner cavity 101 and connected to the driving portion 110; the housing 100 has a first end 102 and a second end 103 arranged opposite to each other in the direction of the axis of rotation AA', a first end cap 108 being located at the first end 102, an injection port 104 being provided at the second end 103 for communicating with the cavity 101; when the second driving shaft 1103 receives the driving force of rotation, the second driving shaft 1103 can drive the injection part 111 to move along the direction of the rotation axis AA' so as to inject the bone cement mixture in the inner cavity 101 into the bone from the injection port 104. Likewise, by providing the injection part 111 and driving the injection part 111 by using the second driving shaft 1103, injection of the bone cement mixture can be realized in the bone cement stirring device 10, thereby realizing preparation and injection of the bone cement mixture in the same cavity, eliminating the need for transferring the bone cement mixture prepared by stirring, reducing toxic gas overflow in the transferring process, reducing dead space and avoiding waste of the bone cement mixture.

Specifically, referring again to fig. 6, in the second embodiment, the injection part 111 may be mounted at one end of the first driving shaft 1101, that is, at one end of the first driving shaft 1101 located in the inner cavity 101, and the injection part 111 is connected between the first driving shaft 1101 and the stirring part 120. When the second driving shaft 1103 receives the driving force of rotation, the second driving shaft 1103 can drive the first driving shaft 1101 to move along the direction of the rotation axis AA ', and further drive the injection part 111 to move along the direction of the rotation axis AA'. It will be appreciated that the injector 111 forms a piston structure within the cavity 101, and that the injector 111 may push the bone cement mixture within the cavity 101 out of the injection port 104 by driving the injector 111 in the direction of the axis of rotation AA' via the drive 110.

Further, similarly to the first embodiment, in the second embodiment, a mounting groove may be provided in the side of the injection port 104 of the bolus portion 111, and a connecting member 121 may be mounted in the mounting groove, and the stirring portion 120 may be connected to the bolus portion 111 via the connecting member 121. In this embodiment, the connector 121 is screwed to the mounting groove, and the stirring section 120 is inserted into the connector 121. The injection part 111 is rotatable around the rotation axis AA' under the driving of the first driving shaft 1101 to drive the stirring part 120 to rotate; the injection part 111 is driven by the first driving shaft 1101 to move along the direction of the rotation axis AA', so that the stirring part 120 can be driven to move along the direction of the rotation axis, and stirring in two dimensions is realized.

In the second embodiment, the bolus portion 111 may be directly mounted on the second drive shaft 1103, so that the second drive shaft 1103 can drive the bolus portion 111 to move along the direction of the rotation axis AA' when receiving the rotational driving force.

Further, in the second embodiment, the driving part 110 is provided with a transmission joint 112, the transmission joint 112 is located outside the housing 100, and the transmission joint 112 is used for transmitting the received driving force to the driving part 110, so that the driving part 110 can drive the stirring part 120 to perform the first movement and the second movement. Specifically, two transmission joints 112 may be provided, which are provided on the first drive shaft 1101 and the second drive shaft 1103, respectively.

By providing the drive joint 112 on the drive portion 110 of the bone cement stirring device 10, it may be used in conjunction with the power device 210 of the bone cement stirring device 20 to provide rotational drive force to the drive portion 110 via the power device 210 to cause the stirring portion 120 to perform a first movement and a second movement to achieve automatic stirring and injection.

Further, in the first embodiment, the first end cap 108 may include a cap main body 1081 and two side wing portions 1082, wherein the cap main body 1081 is connected to the shell main body 106, the fitting channel 1083 is penetratingly disposed on the cap main body 1081, and the side wing portions 1082 are symmetrically disposed on both sides of the cap main body 1081.

Accordingly, the embodiment of the present application further provides a bone cement stirring device 20, including a power device 210 and a limiting device 220, wherein the power device 210 is used for providing a driving force rotating around a rotation axis AA ', the limiting device 220 is disposed on one side of the power device 210 in the direction of the rotation axis AA ', and the limiting device 220 is used for limiting in the direction of the driving force and in the direction along the rotation axis AA '.

It can be appreciated that the bone cement stirring device 20 provides driving force by arranging the power device 210, and limits the driving force in the direction of the driving force and the direction of the rotation axis AA' by arranging the limiting device 220, so that the bone cement stirring device can be applied to the bone cement stirring device 10 of the embodiment of the application, and realize full-automatic stirring of the bone cement stirring device 10 in two dimensions, on one hand, the stirring efficiency can be improved, the mixing degree can be enhanced, the bone cement can be fully reacted, and the strength of the cured bone cement can be ensured; on the other hand, the labor occupation can be reduced, and the injury to human body in the bone cement preparation process is reduced.

Referring to fig. 8, fig. 8 illustrates a top view of the power output shaft 211 of the bone cement stirring device 20. In some embodiments, the power unit 210 includes the power output shaft 211, the power output shaft 211 is provided with a receiving cavity 2111 extending axially therealong, the receiving cavity 2111 being capable of receiving the drive joint 112 of the bone cement stirring device 10; the receiving chamber 2111 is adapted to the shape of the drive joint 112 so that the power take-off shaft 211 can move synchronously along the axial direction of the receiving chamber 2111 when driving the drive joint 112 to rotate.

In use, by inserting the drive joint 112 of the bone cement stirring device 10 into the receiving cavity 2111, the power take-off shaft 211 may provide a rotational driving force to the drive joint 112, thereby enabling rotation of the drive section 110.

Specifically, the cross-sectional shapes of the drive joint 112 and the housing chamber 2111 are substantially the same, and may be a polygonal structure or the like capable of transmitting torque, and the shapes thereof are not limited to a perfect geometric shape, and are not limited to a complete overlapping of the shapes, as long as the torque transmission can be achieved during rotation.

Further, the power unit 210 may also include a power source, a controller, a motor, etc., and may be housed within the housing 200 of the bone cement stirring device 20. When the stirring and injection device is used, the power of the motor is provided by the power supply, the power output shaft 211 is driven to rotate, and the motor can be controlled to work through the controller, so that the stirring and injection can be controlled.

Referring to fig. 10 and 11 together, the limiting device 220 of the bone cement stirring device 20 includes a base 221 and a limiting slider 223, the base 221 is provided with a limiting cavity 222 and a slider channel 144, the slider channel 144 is communicated with the limiting cavity 222, the limiting cavity 222 is used for limiting in the driving force direction, and the limiting slider 223 can be inserted into the limiting cavity 222 from the slider channel 144 to limit in the rotation axis AA'. The limiting device 220 is also disposed on the housing 200, the base 221 of the limiting device is connected with the housing 200, and the limiting cavity and the limiting slider 223 of the limiting device can cooperate with the first end cover 108 of the bone cement stirring device 10 to limit the housing 100 of the bone cement stirring device 10 in the movement directions of the first movement and the second movement.

Specifically, the spacing cavity 222 includes a main cavity 2221 and two side cavities 2222 that are mutually communicated, and the side cavities 2222 are symmetrically disposed on both sides of the main cavity 2221. The housing 100 is restrained by providing a main cavity 2221 and two side cavities 2222 to be able to mate with the cover body 1081 and two side wing portions 1082 of the first end cap 108, respectively.

Accordingly, the embodiment of the present application further provides a bone cement stirring system, referring to fig. 9, 10 and 11, fig. 9 illustrates a structure of the bone cement stirring system according to the embodiment of the present application, fig. 10 illustrates a partial structure of the bone cement stirring system according to the embodiment of the present application cut along the rotation axis AA', and fig. 11 illustrates a partial top view structure of the bone cement stirring system according to the embodiment of the present application; in the present embodiment, the bone cement stirring system includes the bone cement stirring device 10, as well as the power device 210 and the spacing device 220.

The power device 210 is used for driving the driving portion 110, so that the driving portion 110 drives the stirring portion 120 to synchronously perform the first motion and the second motion, and the limiting device 220 is used for limiting the housing 100 in the motion direction of the first motion and the second motion.

It can be understood that the bone cement stirring system utilizes the power device 210 to provide power by arranging the power device 210 and the limiting device 220 to realize automatic stirring of the bone cement stirring device 10, and utilizes the limiting device 220 to limit the shell 100 of the bone cement stirring device 10 during stirring, so that on one hand, the influence of manual stirring on the mixing degree can be reduced, and on the other hand, the influence of toxic gas generated by the reaction of bone cement components on the human body can be reduced; in addition, by replacing the bone cement stirring device 10, the bone cement stirring device 10 can be used as a consumable material for one time, the power device 210 and the limiting device 220 can be reused, the operation cost is reduced, and the operation efficiency and effect are improved.

Specifically, the power device 210 includes a power output shaft 211, and the power output shaft 211 is provided with a housing cavity 2111 extending axially thereof for housing the transmission joint 112 of the driving part 110; the drive joint 112 is adapted to the shape of the accommodation chamber 2111 so that the power take-off shaft 211 can move synchronously along the axial direction of the accommodation chamber 2111 when driving the drive section 110 to rotate. In use, by inserting the drive joint 112 of the bone cement stirring device 10 into the receiving cavity 2111, the power take-off shaft 211 may provide a rotational driving force to the drive joint 112, thereby enabling rotation of the drive section 110.

Further, the limiting device 220 comprises a base 221 and a limiting sliding block 223, the base 221 is provided with a limiting cavity 222 and a sliding block channel 144, and the sliding block channel 144 is communicated with the limiting cavity 222; the shell 100 can be arranged in the limiting cavity 222 in a penetrating way, so that the shell 100 is limited in the movement direction of the first movement through the limiting cavity 222; the limit slider 223 can be inserted into the limit cavity 222 from the slider channel 144 to limit the housing 100 in the movement direction of the second movement.

It should be noted that the limiting device 220 is used to limit the housing 100 of the bone cement stirring device 10 in the movement direction of the first movement and the second movement, and the housing 100 does not need to be completely locked in the two directions, that is, the first end cover 108 of the housing 100 may have a certain movable space in the limiting device 220 and is not necessarily completely locked.

Specifically, the limiting cavity 222 includes a main cavity 2221 and two side cavities 2222 that are mutually communicated, and the side cavities 2222 are symmetrically disposed at two sides of the main cavity 2221; when the housing 100 is threaded into the spacing cavity 222, the cover body 1081 of the housing 100 is positioned in the main cavity 2221 and the side wing portions 1082 of the housing 100 are positioned in the side cavities 2222.

Correspondingly, the embodiment of the application also provides a stirring and injection method, which comprises the following steps:

the interior cavity 101 of the housing 100 of the bone cement stirring device 10 receives bone cement components;

driving the driving part 110 of the bone cement stirring device 10 through the power device 210, so that the driving part 110 drives the stirring part 120 to synchronously perform a first motion and a second motion to stir bone cement components, thereby preparing a bone cement mixture; wherein, the first movement is that the stirring part 120 rotates around the rotation axis AA ', and the second movement is that the stirring part 120 moves along the direction of the rotation axis AA';

the driving part 110 is driven by the power device 210, so that the driving part 110 drives the pushing part 111 to move along the direction of the rotation axis AA' to inject the bone cement mixture in the inner cavity 101 into the bone from the injection port 104.

Specifically, in actual use, the bone cement stirring device 10 may be placed into the bone cement stirring device 20, the housing 100 is inserted into the limiting cavity 222 of the limiting device 220, the transmission joint 112 of the driving portion 110 is inserted into the accommodating cavity 2111 of the power output shaft 211, and then the limiting slider 223 is inserted into the limiting cavity 222 from the slider channel 144.

The second end cap 107 is opened and a bone cement composition is placed into the interior cavity 101 from the feed port 1061, covering the second end cap 107.

Then, through a preset control program, the power output shaft 211 of the power device 210 is controlled to provide high-speed forward and reverse rotation force, so that the driving part 110 is driven to rotate forward and reverse at high speed, the stirring part 120 is driven to rotate forward and reverse around the rotation axis AA ', and the components of bone cement are fully mixed along the direction of the rotation axis AA', and a bone cement mixture is prepared.

After the mixing is completed, the injection port 104 of the bone cement stirring device 10 is connected to injection-related consumables (hoses, metal fillers, etc.).

After standing for a certain period of time, the power output shaft 211 of the power device 210 is controlled to provide power for unidirectional low-speed rotation through a preset control program, so that the driving part 110 rotates at a low speed to drive the injection part 111 to rotate and feed in the inner cavity 101. During the feeding of the injection part 111, the stirring part 120 is compressed in contact with the second end cap 107, and the bone cement mixture in the cavity 101 can be injected into the bone.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.

The bone cement stirring device, the device and the system provided by the embodiment of the application are described in detail, and specific examples are applied to illustrate the principle and the implementation of the application, and the description of the above embodiments is only used for helping to understand the technical scheme and the core idea of the application; those of ordinary skill in the art will appreciate that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A bone cement stirring device (10), comprising:

a housing (100), the housing (100) defining an interior cavity (101), the interior cavity (101) for receiving a bone cement component;

a stirring portion (120), wherein the stirring portion (120) is provided in the inner cavity (101);

a driving part (110), wherein the driving part (110) is used for driving the stirring part (120) to synchronously perform a first motion and a second motion so as to stir the bone cement components and prepare a bone cement mixture;

wherein the first movement is rotation of the stirring part (120) around a rotation axis, and the second movement is movement of the stirring part (120) along the rotation axis.

2. The bone cement stirring device (10) of claim 1, wherein the housing (100) comprises:

-a shell body (106), said shell body (106) surrounding said cavity (101);

a first end cap (108), the first end cap (108) being disposed at one end of the shell body (106), the first end cap (108) being provided with an assembly channel (1083), the assembly channel (1083) being in communication with the interior cavity (101);

the driving part (110) is arranged in the assembling channel (1083) in a penetrating way and is in threaded connection with the first end cover (108), so that when the driving part (110) receives a rotary driving force, the driving part (110) can rotate around the rotation axis of the driving part (110) relative to the first end cover (108) and synchronously move along the direction of the rotation axis, and the stirring part (120) synchronously performs the first movement and the second movement.

3. The bone cement stirring device (10) of claim 2, wherein the drive portion (110) is provided with external threads, the first end cap (108) is provided with internal threads, the internal threads are disposed around the assembly channel (1083), the drive portion (110) is threaded within the assembly channel (1083), and the external threads are coupled with the internal threads;

When the driving part (110) receives a driving force of rotation, the external screw thread can rotate around the rotation axis relative to the internal screw thread and synchronously move along the direction of the rotation axis, so that the driving part (110) drives the stirring part (120) to synchronously perform the first movement and the second movement.

4. The bone cement stirring device (10) of claim 2, wherein the first end cap (108) includes a cap body (1081) and two side wing portions (1082), the cap body (1081) being connected to the shell body (106), the mounting channel (1083) being disposed therethrough to the cap body (1081), the side wing portions (1082) being symmetrically disposed on either side of the cap body (1081).

5. The bone cement stirring device (10) of claim 2, wherein the bone cement stirring device (10) further comprises a bolus portion (111), the bolus portion (111) being disposed in the inner cavity (101) and connected to the drive portion (110);

the housing (100) has a first end (102) and a second end (103) arranged opposite to each other in the direction of the rotation axis, the first end cap (108) is located at the first end (102), and an injection port (104) communicating with the inner cavity (101) is provided at the second end (103);

When the driving part (110) receives a rotary driving force, the driving part (110) can drive the pushing part (111) to move along the direction of the rotary axis so as to inject the bone cement mixture in the inner cavity (101) into bones from the injection port (104).

6. The bone cement stirring device (10) of claim 5, wherein the bolus portion (111) is disposed at one end of the drive portion (110) and is connected between the drive portion (110) and the stirring portion (120);

when the driving part (110) receives a driving force of rotation, the driving part (110) can drive the pushing part (111) to rotate around the rotation axis and synchronously move along the direction of the rotation axis so as to drive the stirring part (120) to synchronously perform the first movement and the second movement.

7. The bone cement stirring device (10) of claim 5, wherein the drive portion (110) is disposed through the bolus portion (111);

the stirring part (120) is positioned at one side of the pushing part (111) away from the first end cover (108), and is mounted at one end of the driving part (110).

8. The bone cement stirring device (10) according to any one of claims 5 to 7, wherein the injection portion (111) is disposed at a distance from an inner wall (105) of the housing (100), the injection portion (111) is provided with an assembly groove (115) along a circumferential direction thereof, a sealing member (113) is disposed in the assembly groove (115), and the sealing member (113) forms a seal between the injection portion (111) and the inner wall (105).

9. The bone cement stirring device (10) of claim 5, wherein the housing body (106) is provided with a feed port (1061) communicating with the interior cavity (101);

the housing (100) further comprises a second end cover (107) arranged opposite to the first end cover (108) in the direction of the rotation axis, the injection port (104) is arranged on the second end cover (107), the second end cover (107) is movably connected with the housing main body (106), and the second end cover (107) can move between a first position and a second position relative to the housing main body (106);

wherein, in the first position, the second end cap (107) opens the feed port (1061) to enable delivery of the bone cement component to the interior cavity (101) through the feed port (1061);

in the second position, the second end cap (107) closes the feed port (1061).

10. The bone cement stirring device (10) according to claim 1, wherein the driving part (110) is provided with a transmission joint (112), the transmission joint (112) being located outside the housing (100), the transmission joint (112) being adapted to transmit the received driving force to the driving part (110) so that the driving part (110) can drive the stirring part (120) to perform the first and second movements simultaneously.

11. A bone cement stirring device (10), comprising:

a driving part (110), wherein the driving part (110) is used for driving the stirring part (120) to perform a first motion and a second motion so as to stir the bone cement components and prepare a bone cement mixture;

12. The bone cement stirring device (10) of claim 11, wherein the drive portion (110) includes:

a first drive shaft (1101), wherein the stirring section (120) is mounted on one end of the first drive shaft (1101);

a rolling bearing (1102), wherein the rolling bearing (1102) is sleeved on the periphery of the first driving shaft (1101);

a second drive shaft (1103), wherein the second drive shaft (1103) is sleeved on the periphery of the rolling bearing (1102) and is connected with the first drive shaft (1101) through the rolling bearing (1102);

When the first driving shaft (1101) receives a rotational driving force, the first driving shaft (1101) can drive the stirring part (120) to perform the first movement;

when the second driving shaft (1103) receives a rotational driving force, the second driving shaft (1103) can drive the first driving shaft (1101) to move along the direction of the rotation axis of the second driving shaft (1103) so as to drive the stirring part (120) to perform the second movement.

13. The bone cement stirring device (10) of claim 12, wherein the housing (100) includes:

-a shell body (106), said shell body (106) surrounding said cavity (101);

the second driving shaft (1103) is arranged in the assembly channel (1083) in a penetrating way and is in threaded connection with the first end cover (108), so that when the second driving shaft (1103) receives a rotating driving force, the second driving shaft (1103) can rotate around the rotating axis relative to the first end cover (108) and move along the direction of the rotating axis, and the first driving shaft (1101) is driven to move along the direction of the rotating axis, so that the stirring part is driven to perform the second movement.

14. The bone cement stirring device (10) of claim 13, wherein the bone cement stirring device (10) further comprises a bolus portion (111), the bolus portion (111) being disposed in the inner cavity (101) and connected to the drive portion (110);

when the second driving shaft (1103) receives a rotary driving force, the second driving shaft (1103) can drive the pushing part (111) to move along the direction of the rotary axis so as to inject the bone cement mixture in the inner cavity (101) into bones from the injection port (104).

15. A bone cement stirring device (20) for use with the bone cement stirring apparatus (10) of any one of claims 1 to 14, such that the bone cement stirring apparatus (10) prepares a bone cement mixture;

the bone cement stirring device (20) comprises:

-a power unit (210), said power unit (210) being adapted to provide a driving force for rotation about an axis of rotation;

And a limiting device (220), wherein the limiting device (220) is arranged on one side of the power device (210) in the direction of the rotation axis, and the limiting device (220) is used for limiting in the direction of the driving force and in the direction along the rotation axis.

16. The bone cement stirring device (20) of claim 15, wherein the power means (210) comprises a power output shaft (211), the power output shaft (211) being provided with a receiving cavity (2111) extending axially thereof, the receiving cavity (2111) being operable to receive a drive joint (112) of the bone cement stirring device (10);

the accommodating cavity (2111) is matched with the shape of the transmission joint (112) so that the power output shaft (211) can synchronously move along the axial direction of the accommodating cavity (2111) when driving the transmission joint (112) to rotate.

17. The bone cement stirring device (20) of claim 15, wherein the spacing means (220) comprises:

the base (221), the base (221) is provided with a limiting cavity (222) and a sliding block channel (144), the sliding block channel (144) is communicated with the limiting cavity (222), and the limiting cavity (222) is used for limiting in the direction of the driving force;

And the limiting slide block (223) can be inserted into the limiting cavity (222) from the slide block channel (144) so as to limit in the direction of the rotation axis.

18. The bone cement stirring device (20) of claim 17, wherein the spacing cavity (222) includes a main cavity (2221) and two side cavities (2222) in communication with each other, the side cavities (2222) being symmetrically disposed on either side of the main cavity (2221).

19. A bone cement stirring system, comprising:

the bone cement stirring device (10) according to any one of claims 1 to 14, and,

-a power device (210), the power device (210) being configured to drive the driving part (110) such that the driving part (110) drives the stirring part (120) to perform the first movement and the second movement synchronously;

-a limiting device (220), the limiting device (220) being adapted to limit the housing (100) in the direction of movement of the first movement and the second movement.

20. The bone cement stirring system of claim 19, wherein,

the power device (210) comprises a power output shaft (211), wherein the power output shaft (211) is provided with a containing cavity (2111) extending along the axial direction of the power output shaft and used for containing a transmission joint (112) of the driving part (110);

The transmission joint (112) is matched with the shape of the accommodating cavity (2111) so that the power output shaft (211) can synchronously move along the axial direction of the accommodating cavity (2111) when driving the driving part (110) to rotate.

21. The bone cement stirring system of claim 19, wherein the stop device (220) includes:

the base (221), the base (221) is provided with a limiting cavity (222) and a sliding block channel (144), and the sliding block channel (144) is communicated with the limiting cavity (222); the shell (100) can be arranged in the limiting cavity (222) in a penetrating way so as to limit the shell (100) in the movement direction of the first movement through the limiting cavity (222);

and the limiting slide block (223) can be inserted into the limiting cavity (222) from the slide block channel (144) so as to limit the shell (100) in the movement direction of the second movement.

22. The bone cement stirring system of claim 21, wherein the spacing cavity (222) includes a main cavity (2221) and two side cavities (2222) in communication with each other, the side cavities (2222) being symmetrically disposed on either side of the main cavity (2221);

when the shell (100) is arranged in the limiting cavity (222) in a penetrating mode, a cover main body (1081) of the shell (100) is located in the main cavity (2221), and side wing parts (1082) of the shell (100) are located in the side cavities (2222).