Special portable bone adhesive vacuum mixing device for operation

Abstract

The invention provides an intraoperative special portable bone adhesive vacuum mixing device, and belongs to the field of medical instruments. Comprising an extraction shell and a mixing shell, a micro vacuum pump is fixedly connected to the upper end of the extraction shell, a powder raw material inlet is formed in the position, close to the micro vacuum pump, of the upper end of the extraction shell, and a liquid raw material storage cavity is formed in the extraction shell; a mixing bag body is arranged in the mixing shell, and a bone adhesive mixing unit is arranged in the mixing shell. The device is small in overall size, good in portability and capable of being used in an operating room during operation, meanwhile, uniform mixing is carried out through the bone adhesive mixing unit, the labor intensity of workers is reduced, the uniform mixing effect is better due to the fact that vacuum mixing is achieved, and in addition, after bone adhesives are mixed, the operation efficiency is improved. The mixing shell only needs to be detached, and clear water is injected into the mixing bag body for washing, so that the cleaning process is simplified.

Description

Technical Field

[0001] The invention relates to the field of medical instruments, and more particularly to a portable bone adhesive vacuum mixing device used during surgery. Background Art

[0002] Bone adhesive is a medical adhesive widely used in orthopedic surgery. It is mainly used to fix bones, fill defects and promote fracture healing. Bone adhesive is an adhesive material that can tightly bond two different materials (such as bone and implant, bone and bone) together and maintain its stability for a certain period of time.

[0003] Polymethyl methacrylate bone adhesive (PMMA bone adhesive) is a type of bone adhesive. PMMA bone adhesive consists of a liquid monomer component and a powder component. PMMA bone adhesive can be formed by mixing adhesive powder with the monomer liquid in a suitable mixing cup with the aid of a spatula. The disadvantage of this approach is that air inclusions may occur in the formed adhesive paste, which may subsequently cause the bone adhesive to lose mechanical stability. For this reason, the mixing of bone adhesive powder and monomer liquid should preferably be carried out in a mixing device including a vacuum source, because vacuum mixing removes as much air inclusions as possible from the adhesive paste, thereby achieving the best adhesive quality.

[0004] For example, a Chinese patent with the authorization announcement number CN107008197B in the prior art provides a vacuum mixing device. The vacuum mixing device comprises: at least one barrel, a mixing component, a receptacle, an opening mechanism, a pump, and a connecting pipeline. The vacuum mixing device does not require external auxiliary means such as a vacuum pump and a vacuum hose driven by compressed air, and can be operated without an energy source such as compressed air or a battery. It can be used independently and can be used under the simplest or most difficult surgical conditions.

[0005] In the above-mentioned prior art, although vacuum mixing of bone adhesive can be achieved under the simplest or most difficult surgical conditions, no external auxiliary means such as a vacuum pump and a vacuum hose driven by compressed air are required, and it can be operated without an energy source such as compressed air or a battery, thereby achieving a certain degree of expansion of applicable scenarios, the overall size of the device is large and the portability is poor, so it cannot be used in a relatively small space, such as it cannot be used inside an operating room during surgery. At the same time, the prior art adopts manual mixing, which has high labor intensity and unsatisfactory mixing effect. In addition, the mixing structure of the technology is relatively complex. After the bone adhesive is mixed, the cleaning process is relatively cumbersome, and the convenience of use still needs to be improved. Summary of the invention

[0006] In view of the problems existing in the prior art, the object of the present invention is to provide a portable bone adhesive vacuum mixing device specially used during surgery.

[0007] To solve the above problems, the present invention adopts the following technical solutions:

[0008] A portable bone adhesive vacuum mixing device for intraoperative use, comprising an extraction shell and a mixing shell, and the extraction shell and the mixing shell are detachably connected; a micro vacuum pump is fixedly connected to the upper end of the extraction shell, and a powder raw material inlet is provided at the upper end of the extraction shell near the micro vacuum pump, a liquid raw material storage chamber is provided inside the extraction shell, a liquid raw material injection port connected to the liquid raw material storage chamber is provided at one end of the extraction shell, a liquid raw material extraction rod is slidably and sealedly connected inside the liquid raw material storage chamber, a powder injection port and a vacuum suction port are symmetrically provided at one end of the extraction shell with respect to the liquid raw material injection port, and the powder injection port is connected to the powder raw material inlet through a pipeline, and the vacuum suction port is connected to the micro vacuum pump through a pipeline;

[0009] A mixing capsule is provided inside the mixing shell, and the mixing capsule is connected with a liquid raw material injection port, a powder injection port and a vacuum suction port. A bone adhesive discharge port is provided in the middle of one end of the mixing shell, and the bone adhesive discharge port is connected with one end of the mixing capsule. A bone adhesive mixing unit is provided inside the mixing shell.

[0010] Optionally, a control panel is provided on one side of the upper surface of the extraction shell, and a storage battery is provided on the upper surface of the extraction shell near the control panel.

[0011] Optionally, the mixing capsule includes a trapezoidal interface capsule, one end of the trapezoidal interface capsule is provided with three connection ports, and the three connection ports can be detachably connected to the powder raw material inlet, the powder injection port and the vacuum suction port respectively, one end of the trapezoidal interface capsule is fixed to and connected to the olive-shaped capsule No. 1, one end of the olive-shaped capsule No. 1 is fixed to and connected to the middle convergence channel, one end of the middle convergence channel is fixed to and connected to the olive-shaped capsule No. 2, and the olive-shaped capsule No. 2 is connected to the bone adhesive discharge port.

[0012] Optionally, the trapezoidal interface capsule, the first olive-shaped capsule, and the second olive-shaped capsule are all made of rubber material, and the middle convergence channel is made of hard plastic material.

[0013] Optionally, the bone adhesive mixing unit comprises a bone adhesive extrusion assembly disposed at one end of the mixing shell, a return material extrusion assembly disposed on the inner wall of the mixing shell and used in conjunction with the bone adhesive extrusion assembly, and a preliminary material mixing assembly disposed below the first olive-shaped capsule;

[0014] The bone adhesive extrusion assembly includes a mounting block fixedly connected to the bottom wall of the mixing shell, and a No. 2 motor fixedly connected to the side wall of one end of the mixing shell, one end of the mounting block is rotatably connected to a ball screw, one end of the ball screw penetrates the mixing shell and is fixedly connected to the output shaft of the No. 2 motor, the ball screw is spirally connected to a No. 1 ball nut seat, the lower end of the No. 1 ball nut seat is fixedly connected to a No. 3 motor, the output shaft of the No. 3 motor penetrates the No. 1 ball nut seat and is fixedly connected to a reciprocating screw, the upper and lower ends of the reciprocating screw are symmetrically spirally connected to two No. 2 ball nut seats, one end of the No. 2 ball nut seat at the lower end is fixedly connected to a lower extrusion roller, and one end of the No. 2 ball nut seat at the upper end is fixedly connected to an upper extrusion roller.

[0015] Optionally, the return material extrusion assembly includes a No. 1 motor fixedly connected to the outer wall of the mixing shell, the output shaft of the No. 1 motor passes through the mixing shell and is fixedly connected to an incomplete gear, the outer side of the incomplete gear is sleeved on a rectangular frame, and the upper and lower ends of the inside of the rectangular frame are fixedly connected to extrusion racks, and the incomplete gear is meshed with two sets of extrusion racks, one end of the rectangular frame is fixedly connected to an L-shaped rod, one end of the L-shaped rod is fixedly connected to a storage extrusion part, the inner wall of the mixing shell is fixedly connected to a limit frame, and the L-shaped rod and the limit frame pass through and are slidably connected; the other end of the rectangular frame is fixedly connected to a push rod, and one end of the push rod is movably connected to a trigger assembly.

[0016] Optionally, the storage extrusion portion includes a cylinder fixedly connected to one end of the L-shaped rod, and a trumpet-shaped storage opening is formed through the inside of the cylinder, and the large end of the trumpet-shaped storage opening faces the No. 1 olive-shaped capsule.

[0017] Optionally, the trigger assembly includes a mounting shell fixedly connected to the inner wall of the mixing shell, one side of the mounting shell is penetrated by and slidably connected to a push rod, and the push rod extends to one end inside the mounting shell and is fixedly connected to a positive pole, one end inside the mounting shell is fixedly connected to a retaining frame, a middle position of the retaining frame is fixedly connected to a negative pole, one end of the negative pole is fixedly connected to a signal transceiver module, and the positive pole, negative pole and signal transceiver module are connected in series.

[0018] Optionally, the preliminary mixing assembly includes two connecting seats fixedly connected to the middle position of the bottom wall of the mixing shell, a rotating rod is rotatably connected between the two connecting seats, a V-shaped double-sided mixing clapboard is fixedly connected to the middle position of the outer circumferential surface of the rotating rod, the rotating rod passes through one of the connecting seats and is fixedly connected to a swing gear, the upper end of the swing gear is meshingly connected with a reciprocating rack, both ends of the reciprocating rack are fixedly connected to a toothless rod body, the bottom wall of the mixing shell is also provided with two groups of supporting frames, and the combination of the reciprocating rack and the toothless rod body is slidably connected to the two groups of supporting frames, one end of one of the toothless rod bodies is fixedly connected to a swing frame, the bottom wall of the mixing shell is also provided with a No. 4 motor, and the output shaft of the No. 4 motor is fixedly connected to a swing shaft connecting rod, one end of the swing shaft connecting rod is fixedly connected to the swing shaft, the swing shaft passes through the swing frame, and the reciprocating rack and the output shaft of the No. 4 motor are located in the same horizontal plane, and the length of the swing shaft connecting rod is half of the axial length of the swing frame.

[0019] Optionally, buckles are fixedly connected to four corners of one end of the mixing shell, and slots are opened at four corners of one end of the extraction shell. The extraction shell and the mixing shell are detachably connected through the buckles and the slots.

[0020] Compared with the prior art, the technical solution provided by the present invention has at least the following beneficial effects:

[0021] In the above scheme, when the vacuum mixing of the bone adhesive raw materials is performed, the overall volume of the device is small and the portability is good. It can be used in a relatively small space, such as inside an operating room during an operation. At the same time, the present invention performs mixing through a bone adhesive mixing unit and is equipped with a battery for power supply, thereby reducing the intensity of manual labor. Moreover, since vacuum mixing is achieved, the mixing effect is better. In addition, after the bone adhesive is mixed, the present invention only needs to disassemble the mixing shell and fill the mixing capsule with clean water for flushing. There is no need to flush the bone adhesive mixing unit that has not contacted the bone adhesive, thereby simplifying the cleaning process and further improving the convenience of use.

[0022] A bone adhesive mixing unit is provided to extrude the bone adhesive inside the olive-shaped capsule No. 1, so that it is pressurized to pass through the intermediate convergence channel into the olive-shaped capsule No. 2, and is mixed by using the intermediate convergence channel, and the diameter of the intermediate convergence channel is small to ensure the mixing effect. Then, the bone adhesive transferred to the interior of the olive-shaped capsule No. 2 is re-extruded by the bone adhesive mixing unit, and enters the olive-shaped capsule No. 1 through the intermediate convergence channel. The above process is repeated. When the bone adhesive passes through the intermediate convergence channel back and forth, it is repeatedly pressurized and mixed, which further improves the mixing effect of the bone adhesive.

[0023] By setting a trigger component, when the rectangular frame and the components installed thereon move together to the leftmost position and are about to start to move back to the right, the top rod fixed to the rectangular frame will drive the positive pole to contact the negative pole and connect the signal transceiver module, so that the signal transceiver module works and notifies the control panel to control the bone adhesive extrusion component to start working, that is, when the return material extrusion component returns to the right, the bone adhesive extrusion component synchronously starts to move to the right again, thereby improving the degree of automation of the device and shortening the working cycle of the bone adhesive extrusion component and the return material extrusion component.

[0024] By setting up a preliminary mixing component, before starting the bone adhesive extrusion component and the return material extrusion component to start reciprocating extrusion and mixing, first control the No. 4 motor to work through the control panel to drive the swing shaft connector and the swing shaft to start rotating. Since the swing shaft runs through the swing frame, when the swing shaft rotates, it will drive the swing frame, the toothless rod body, and the reciprocating rack to reciprocate linearly. When the reciprocating rack reciprocates linearly, it will drive the swing gear to rotate reciprocatingly, thereby driving the rotating rod and the two sides of the V-shaped double-sided mixing clapboard to reciprocately beat and mix the bottom of the No. 1 olive-shaped capsule, thereby playing a preliminary role in mixing the powder raw material and the liquid raw material, facilitating the subsequent work of the bone adhesive extrusion component, and further improving the mixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0027] Figure 2 For the present invention Figure 1 Another perspective structural diagram;

[0028] Figure 3 It is a schematic diagram of the cross-sectional structure of the extraction housing and the components mounted thereon of the present invention;

[0029] Figure 4 It is a schematic diagram of the cross-sectional structure of the mixing housing and the components mounted thereon of the present invention;

[0030] Figure 5 It is a schematic diagram of the structure of the bone adhesive mixing unit and the mixing capsule of the present invention;

[0031] Figure 6 It is a structural schematic diagram of the return material extrusion assembly of the present invention;

[0032] Figure 7 For the present invention Figure 6 A schematic diagram of the cross-sectional structure of the middle storage extrusion portion;

[0033] Figure 8 It is a schematic structural diagram of the bone adhesive extrusion assembly of the present invention;

[0034] Fig. 9 It is a schematic cross-sectional structure diagram of the trigger assembly of the present invention;

[0035] Fig.10 It is a schematic structural diagram of the preliminary mixing component of the present invention.

[0036] [Reference Signs]

[0037] 1. Extraction shell; 2. Mixing shell; 3. Liquid raw material extraction rod; 4. Control panel; 5. Micro vacuum pump;

[0038] 6. Mixing capsule; 61. Trapezoidal interface capsule; 62. Connecting port; 63. No. 1 olive-shaped capsule; 64. Middle convergence channel; 65. No. 2 olive-shaped capsule;

[0039] 7. Recycling extrusion assembly; 71. No. 1 motor; 72. Incomplete gear; 73. Rectangular frame; 74. Extrusion rack; 75. L-shaped rod; 76. Limiting frame; 77. Storage extrusion part; 771. Cylinder; 772. Trumpet-shaped storage port; 78. Ejector; 79. Trigger assembly; 791. Mounting shell; 792. Cage; 793. Signal transceiver module; 794. Negative pole; 795. Positive pole;

[0040] 8. Bone adhesive extrusion assembly; 81. Mounting block; 82. Ball screw; 83. No. 2 motor; 84. No. 1 ball nut seat; 85. No. 3 motor; 86. Reciprocating screw; 87. No. 2 ball nut seat; 88. Lower extrusion roller; 89. Upper extrusion roller;

[0041] 9. Preliminary mixing assembly; 91. Connecting seat; 92. Rotating rod; 93. Swinging gear; 94. V-shaped double-sided mixing clapper; 95. Supporting frame; 96. Reciprocating rack; 97. Gearless rod body; 98. Swinging frame; 99. Swinging shaft; 910. Swinging shaft connecting rod; 911. No. 4 motor;

[0042] 10. Storage battery; 11. Powder raw material inlet; 12. Powder material injection port; 13. Liquid raw material injection port; 14. Vacuum suction port; 15. Bone adhesive discharge port; 16. Buckle; 17. Card slot; 18. Liquid raw material storage chamber.

[0043] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0044] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0045] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0046] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0047] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0048] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0049] like Figures 1 to 10As shown, an embodiment of the present invention provides a portable bone adhesive vacuum mixing device for intraoperative use, comprising an extraction shell 1 and a mixing shell 2, and the extraction shell 1 and the mixing shell 2 are detachably connected; a micro vacuum pump 5 is fixedly connected to the upper end of the extraction shell 1, and a powder raw material inlet 11 is provided at the upper end of the extraction shell 1 near the micro vacuum pump 5, a liquid raw material storage chamber 18 is provided inside the extraction shell 1, a liquid raw material injection port 13 connected to the liquid raw material storage chamber 18 is provided at one end of the extraction shell 1, a liquid raw material extraction rod 3 is slidably and sealedly connected inside the liquid raw material storage chamber 18, a powder injection port 12 and a vacuum suction port 14 are symmetrically provided at one end of the extraction shell 1 about the liquid raw material injection port 13, and the powder injection port 12 is connected to the powder raw material inlet 11 through a pipeline, and the vacuum suction port 14 is connected to the micro vacuum pump 5 through a pipeline.

[0050] A mixing capsule 6 is provided inside the mixing shell 2, and the mixing capsule 6 is connected with a liquid raw material injection port 13, a powder injection port 12 and a vacuum suction port 14. A bone adhesive discharge port 15 is provided in the middle of one end of the mixing shell 2, and the bone adhesive discharge port 15 is connected with one end of the mixing capsule 6. A bone adhesive mixing unit is provided inside the mixing shell 2.

[0051] A control panel 4 is disposed on one side of the upper surface of the extraction shell 1 , and a storage battery 10 is disposed on the upper surface of the extraction shell 1 near the control panel 4 .

[0052] like Figure 1 and Figure 2 As shown, buckles 16 are fixedly connected to the four corners of one end of the mixing shell 2, and slots 17 are opened at the four corners of one end of the extraction shell 1. The extraction shell 1 and the mixing shell 2 are detachably connected through the buckles 16 and the slots 17.

[0053] The existing technology has a large overall volume and poor portability, so it cannot be used in a relatively small space, such as inside an operating room where an operation is in progress. At the same time, the existing technology uses manual mixing, which has high labor intensity and unsatisfactory mixing effect. In addition, the mixing structure of this technology is relatively complex. After the bone adhesive is mixed, the cleaning process is relatively cumbersome, and the convenience of use still needs to be improved.

[0054] When the present invention is used, firstly, the liquid raw material injection port 13 is placed inside the storage device of the bone adhesive liquid raw material. It should be noted that the length of the liquid raw material injection port 13 is greater than the powder injection port 12 and the vacuum suction port 14, so as to facilitate the suction of the liquid raw material. Then, the liquid raw material extraction rod 3 is manually pulled backward (the liquid raw material extraction rod 3 is similar to the syringe extraction rod, and a rubber plug is provided at the front end to be slidably sealed and connected with the liquid raw material storage chamber 18). After the liquid raw material extraction rod 3 is manually pulled, the volume of the liquid stored in the liquid raw material storage chamber 18 increases, and negative pressure is generated, so that the bone adhesive liquid raw material is sucked into the liquid raw material storage chamber 18. Inside the cavity 18, the liquid raw material is prepared, and then the liquid raw material injection port 13 is connected to one end of the mixing capsule 6 (the powder injection port 12, the liquid raw material injection port 13, and the vacuum suction port 14 are all detachably connected to the mixing capsule 6, and the optional detachable connection methods are threaded connection, snap connection, etc., which are prior art and will not be described here). At the same time, the powder injection port 12 and the vacuum suction port 14 are fixed and connected to the mixing capsule 6. Finally, the extraction shell 1 and the mixing shell 2 are snap-connected by the snap 16 and the slot 17 to complete the overall mixing preparation of the device.

[0055] Then, the control panel 4 controls the miniature vacuum pump 5 to work, and the air inside the mixing capsule 6 is adsorbed through the vacuum suction port 14, so that the inside of the mixing capsule 6 is evacuated. (In the process before the bone adhesive is mixed and discharged, the electromagnetic valves arranged inside the bone adhesive discharge port 15 are all in a closed state. At the same time, the powder material injection port 12, the liquid raw material injection port 13, and the vacuum suction port 14 are all provided with electromagnetic valves. When one of the three is working, the control panel 4 controls the electromagnetic valves inside the other two ports to close. In this state, the electromagnetic valves inside the powder material injection port 12 and the liquid raw material injection port 13 are closed.) After the vacuum operation is completed, the bone adhesive powder raw material is injected into the mixing capsule 6 through the powder raw material inlet 11 and the powder injection port 12. In this state, the liquid raw material injection port 13 and the vacuum suction port 14 are closed. All electromagnetic valves are closed, and it should be noted that when injecting the bone adhesive powder raw material through the powder raw material inlet 11 and the powder injection port 12, vacuum injection should be ensured; after the powder raw material is injected into the mixing capsule 6, the internal electromagnetic valve of the liquid raw material injection port 13 is opened, the internal electromagnetic valves of the powder injection port 12 and the vacuum suction port 14 are closed, the liquid raw material extraction rod 3 is manually pressed and the negative pressure inside the mixing capsule 6 is cooperated to inject the liquid raw material into the mixing capsule 6 to complete the vacuum injection of the entire raw material. At this time, the internal electromagnetic valves of the powder injection port 12, the liquid raw material injection port 13, and the vacuum suction port 14 are closed, and the liquid raw material and the powder raw material inside the mixing capsule 6 are mixed by the bone adhesive mixing unit to form a bone adhesive paste. Finally, the finished product is discharged through the bone adhesive discharge port 15 to complete the vacuum mixing operation of the bone adhesive.

[0056] When the present invention performs vacuum mixing of bone adhesive raw materials, the overall volume of the device is small and the portability is good. It can be used in a relatively narrow space, such as inside an operating room during surgery. At the same time, the present invention performs mixing through a bone adhesive mixing unit and is equipped with a battery 10 for power supply, thereby reducing the intensity of manual labor. Moreover, since vacuum mixing is achieved, the mixing effect is better. In addition, after the bone adhesive is mixed, the present invention only needs to disassemble the mixing shell 2 and fill the mixing capsule 6 with clean water for flushing. There is no need to flush the bone adhesive mixing unit that has not contacted the bone adhesive, thereby simplifying the cleaning process and further improving the convenience of use.

[0057] like Figure 4 and Figure 5 As shown, the mixing capsule 6 includes a trapezoidal interface capsule 61, one end of which is provided with three connecting ports 62, and the three connecting ports 62 can be detachably connected to the powder raw material inlet 11, the powder injection port 12 and the vacuum suction port 14 respectively, one end of the trapezoidal interface capsule 61 is fixed and connected to the first olive-shaped capsule 63, one end of the first olive-shaped capsule 63 is fixed and connected to the middle convergence channel 64, one end of the middle convergence channel 64 is fixed and connected to the second olive-shaped capsule 65, and the second olive-shaped capsule 65 is connected to the bone adhesive discharge port 15.

[0058] The trapezoidal interface capsule 61, the first olive-shaped capsule 63, and the second olive-shaped capsule 65 are all made of rubber material, and the middle convergence channel 64 is made of hard plastic material.

[0059] The mixing capsule 6 is divided into a trapezoidal interface capsule 61, a first olive-shaped capsule 63, a second olive-shaped capsule 65 and an intermediate convergence channel 64. The powder raw material and the liquid raw material injected into the mixing capsule 6 through the powder injection port 12 and the liquid raw material injection port 13 will first enter the first olive-shaped capsule 63 through the trapezoidal interface capsule 61 and be pre-mixed inside the first olive-shaped capsule 63. After the mixing is completed, the bone adhesive inside the first olive-shaped capsule 63 is squeezed by the bone adhesive mixing unit to pressurize it. The bone adhesive passes through the middle convergent channel 64 and enters the second olive-shaped capsule 65, and is mixed by the middle convergent channel 64. The diameter of the middle convergent channel 64 is small to ensure the mixing effect. Then the bone adhesive transferred to the inside of the second olive-shaped capsule 65 is re-extruded by the bone adhesive mixing unit, and enters the first olive-shaped capsule 63 through the middle convergent channel 64. The above process is repeated. When the bone adhesive passes through the middle convergent channel 64 back and forth, it is repeatedly pressurized and mixed, which further improves the mixing effect of the bone adhesive.

[0060] like Figure 5 and Figure 8As shown, the bone adhesive mixing unit includes a bone adhesive extrusion component 8 arranged at one end of the mixing shell 2, a return material extrusion component 7 arranged on the inner wall of the mixing shell 2 and used in conjunction with the bone adhesive extrusion component 8, and a preliminary mixing component 9 arranged below the first olive-shaped capsule 63.

[0061] The bone adhesive extrusion assembly 8 includes a mounting block 81 fixedly connected to the bottom wall of the mixing shell 2, and a No. 2 motor 83 fixedly connected to the side wall of one end of the mixing shell 2. One end of the mounting block 81 is rotatably connected to a ball screw 82. One end of the ball screw 82 passes through the mixing shell 2 and is fixedly connected to the output shaft of the No. 2 motor 83. The ball screw 82 is spirally connected to a No. 1 ball nut seat 84. The lower end of the No. 1 ball nut seat 84 is fixedly connected to a No. 3 motor 85. The output shaft of the No. 3 motor 85 passes through the No. 1 ball nut seat 84 and is fixedly connected to a reciprocating screw 86. The upper and lower ends of the reciprocating screw 86 are symmetrically spirally connected to two No. 2 ball nut seats 87. One end of the No. 2 ball nut seat 87 at the lower end is fixedly connected to a lower extrusion roller 88, and one end of the No. 2 ball nut seat 87 at the upper end is fixedly connected to an upper extrusion roller 89.

[0062] like Figures 5 to 7 As shown, the recycle extrusion assembly 7 includes a No. 1 motor 71 fixedly connected to the outer wall of the mixing shell 2, the output shaft of the No. 1 motor 71 penetrates the mixing shell 2 and is fixedly connected to an incomplete gear 72, the outer side of the incomplete gear 72 is sleeved with a rectangular frame 73, and the upper and lower ends of the rectangular frame 73 are fixedly connected to extrusion racks 74, and the incomplete gear 72 is meshed with the two sets of extrusion racks 74, one end of the rectangular frame 73 is fixedly connected to an L-shaped rod 75, one end of the L-shaped rod 75 is fixedly connected to a storage extrusion portion 77, the inner wall of the mixing shell 2 is fixedly connected to a limit frame 76, and the L-shaped rod 75 penetrates and is slidably connected to the limit frame 76. The other end of the rectangular frame 73 is fixedly connected to a push rod 78, and one end of the push rod 78 is movably connected to a trigger assembly 79.

[0063] The storage extrusion portion 77 includes a cylinder 771 fixedly connected to one end of the L-shaped rod 75 , and a trumpet-shaped storage opening 772 is formed through the cylinder 771 , and the trumpet-shaped storage opening 772 faces the first olive-shaped capsule 63 .

[0064] When the bone adhesive mixing unit is working, first, the bone adhesive extrusion assembly 8 works to squeeze the bone adhesive inside the No. 1 olive-shaped capsule 63 into the No. 2 olive-shaped capsule 65 through the middle convergence channel 64. Specifically, the No. 3 motor 85 is controlled to work through the control panel 4 to drive the reciprocating screw 86 fixed thereto to rotate. When the reciprocating screw 86 rotates, the two No. 2 ball nut seats 87 located at the upper and lower ends thereof will move relatively to the middle position of the reciprocating screw 86, and at the same time drive the lower extrusion roller 88 and the upper extrusion roller 89 to approach each other, and after they are in close contact, the No. 3 motor 85 is turned off, and the No. 2 motor 83 is controlled to work through the control panel 4. When the No. 2 motor 83 rotates, it will drive the ball screw fixed thereto. The lever 82 rotates, and the No. 1 ball nut seat 84 moves along the ball screw 82 toward the direction of the No. 2 motor 83. As the No. 1 ball nut seat 84 moves, the lower extrusion roller 88 and the upper extrusion roller 89 are driven to move toward the direction of the No. 2 motor 83, and the raw material mixture inside the No. 1 olive-shaped capsule 63 is squeezed, so that it is pressurized to gradually enter the No. 2 olive-shaped capsule 65 through the middle convergence channel 64. When the lower extrusion roller 88 and the upper extrusion roller 89 move to the middle convergence channel 64, the raw material mixture inside the No. 1 olive-shaped capsule 63 can be squeezed into the No. 2 olive-shaped capsule 65. At this time, the No. 2 motor 83 is controlled to reverse, driving the lower extrusion roller 88 and the upper extrusion roller 89 to return to the initial position ( Figure 5 The position shown is the initial position) to complete one mixing.

[0065] Then, the return material extrusion assembly 7 starts to work, and the raw material mixture inside the second olive-shaped capsule 65 is squeezed into the first olive-shaped capsule 63 through the middle convergence channel 64. Specifically, the first motor 71 is controlled by the control panel 4 to work, driving the incomplete gear 72 to rotate counterclockwise. When the incomplete gear 72 first meshes with the extrusion rack 74 at the upper end of the rectangular frame 73, it will drive the rectangular frame 73 and the components installed thereon to move to the left together ( Figure 5 In the direction shown), the receiving and extruding portion 77 converges and extrudes the olive-shaped capsule 65 No. 2, and extrude the raw material mixture inside the olive-shaped capsule 65 No. 2 through the intermediate convergence channel 64 into the interior of the olive-shaped capsule No. 1 63 for secondary mixing, and a trumpet-shaped receiving opening 772 is opened through the interior of the cylinder 771, and the large end of the trumpet-shaped receiving opening 772 faces the olive-shaped capsule No. 1 63, which is convenient for the extrusion operation. It should be noted that when the rectangular frame 73 and the components mounted thereon move to the leftmost position together, the receiving and extruding portion 77 just moves to the position of the intermediate convergence channel 64, and can extrude all the raw material mixture inside the olive-shaped capsule No. 2 65 into the interior of the olive-shaped capsule No. 1 63; when the incomplete gear 72 continues to rotate counterclockwise and begins to mesh with the extrusion rack 74 at the bottom, it will drive the rectangular frame 73 and the components mounted thereon to move to the right together for resetting ( Figure 5 The position shown is the initial state).

[0066] like Fig. 9 As shown, the trigger assembly 79 includes a mounting shell 791 fixedly connected to the inner wall of the mixing shell 2, one side of the mounting shell 791 is penetrated by and slidably connected to the push rod 78, and the push rod 78 extends to one end of the mounting shell 791 and is fixedly connected to the positive pole 795, one end of the mounting shell 791 is fixedly connected to the retaining frame 792, the middle position of the retaining frame 792 is fixedly connected to the negative pole 794, one end of the negative pole 794 is fixedly connected to the signal transceiver module 793, and the positive pole 795, the negative pole 794 and the signal transceiver module 793 are connected in series.

[0067] When the return material extrusion assembly 7 is working, when the rectangular frame 73 and the components installed thereon move to the leftmost position together and are about to start to move back to the right, the top rod 78 fixedly connected to the rectangular frame 73 will drive the positive pole 795 to contact the negative pole 794, and connect the signal transceiver module 793, so that the signal transceiver module 793 works, and notifies the control panel 4 to control the bone adhesive extrusion assembly 8 to start working, that is, when the return material extrusion assembly 7 returns to the right, the bone adhesive extrusion assembly 8 synchronously starts to move to the right again to work, thereby improving the degree of automation of the device and shortening the working cycle of the bone adhesive extrusion assembly 8 and the return material extrusion assembly 7.

[0068] like Fig.10 As shown, the preliminary mixing assembly 9 includes two connecting seats 91 fixedly connected to the middle position of the bottom wall of the mixing shell 2, a rotating rod 92 is rotatably connected between the two connecting seats 91, a V-shaped double-sided mixing clapper 94 is fixedly connected to the middle position of the outer circumference of the rotating rod 92, the rotating rod 92 passes through one of the connecting seats 91 and is fixedly connected to a swing gear 93, the upper end of the swing gear 93 is meshedly connected to a reciprocating rack 96, both ends of the reciprocating rack 96 are fixedly connected to a toothless rod body 97, the bottom wall of the mixing shell 2 is also provided with two sets of supporting frames 95, and the reciprocating rack 9 6. The assembly of the toothless rod body 97 is slidably connected to the two groups of supporting frames 95, one end of one of the toothless rod bodies 97 is fixedly connected to the swing frame 98, and the bottom wall of the mixing shell 2 is also provided with a No. 4 motor 911, and the output shaft of the No. 4 motor 911 is fixedly connected to the swing shaft connecting rod 910, one end of the swing shaft connecting rod 910 is fixedly connected to the swing shaft 99, the swing shaft 99 passes through the swing frame 98, and the reciprocating rack 96 and the output shaft of the No. 4 motor 911 are located in the same horizontal plane, and the length of the swing shaft connecting rod 910 is half the axial length of the swing frame 98.

[0069] When the liquid raw material and the powder raw material are injected into the first olive-shaped capsule 63 for the first time, there will be obvious stratification due to the separate injection of the liquid raw material and the powder raw material. At this time, it will be difficult to squeeze the liquid raw material and the powder raw material in the first olive-shaped capsule 63 into the second olive-shaped capsule 65 through the bone adhesive extrusion component 8. The present invention provides a preliminary mixing component 9. Before starting the bone adhesive extrusion component 8 and the return material extrusion component 7 to start reciprocating extrusion and mixing, the control panel 4 is used to control the fourth motor 911 to work, drive the swing shaft connecting rod 910 and the swing shaft 99 to start rotating. Since the swing shaft 99 penetrates the swing frame 98, when the swing shaft 99 rotates When the reciprocating rack 96 moves, it will drive the swing frame 98, the toothless rod body 97, and the reciprocating rack 96 to move back and forth linearly. When the reciprocating rack 96 moves back and forth linearly, it will drive the swing gear 93 to rotate back and forth, thereby driving the rotating rod 92 and the two sides of the V-shaped double-sided mixing clapboard 94 to reciprocately beat and mix the bottom of the No. 1 olive-shaped capsule 63 (the No. 1 olive-shaped capsule 63 is made of rubber and has a certain elasticity. When the powder raw material and the liquid raw material are injected, they will be deposited in the lower half of the No. 1 olive-shaped capsule 63 under the action of gravity), thereby playing a preliminary mixing of the powder raw material and the liquid raw material, facilitating the subsequent work of the bone adhesive extrusion component 8, and further improving the mixing effect.

[0070] The working process of the technical solution provided by the present invention is as follows:

[0071] When the present invention is used, firstly, the liquid raw material injection port 13 is placed inside the storage device of the bone adhesive liquid raw material. It should be noted that the length of the liquid raw material injection port 13 is greater than the powder injection port 12 and the vacuum suction port 14, so as to facilitate the suction of the liquid raw material. Then, the liquid raw material extraction rod 3 is manually pulled backward (the liquid raw material extraction rod 3 is similar to the syringe extraction rod, and a rubber plug is provided at the front end to be slidably sealed and connected with the liquid raw material storage chamber 18). After the liquid raw material extraction rod 3 is manually pulled, the volume of the liquid stored in the liquid raw material storage chamber 18 increases, and negative pressure is generated, so that the bone adhesive liquid raw material is sucked into the liquid raw material storage chamber 18. Inside the cavity 18, the liquid raw material is prepared, and then the liquid raw material injection port 13 is connected to one end of the mixing capsule 6 (the powder injection port 12, the liquid raw material injection port 13, and the vacuum suction port 14 are all detachably connected to the mixing capsule 6, and the optional detachable connection methods are threaded connection, snap connection, etc., which are prior art and will not be described here). At the same time, the powder injection port 12 and the vacuum suction port 14 are fixed and connected to the mixing capsule 6. Finally, the extraction shell 1 and the mixing shell 2 are snap-connected by the snap 16 and the slot 17 to complete the overall mixing preparation of the device.

[0072] Then, the control panel 4 is used to control the miniature vacuum pump 5 to work, and the air inside the mixing capsule 6 is adsorbed through the vacuum suction port 14, so that the inside of the mixing capsule 6 is evacuated. (In the process before the bone adhesive is mixed and discharged, the electromagnetic valves arranged inside the bone adhesive discharge port 15 are all in a closed state. At the same time, electromagnetic valves are arranged inside the powder injection port 12, the liquid raw material injection port 13, and the vacuum suction port 14. When one of the three is working, the control panel 4 controls the electromagnetic valves inside the other two ports to close. In this state, the electromagnetic valves inside the powder injection port 12 and the liquid raw material injection port 13 are closed.) After the vacuum operation is completed, the bone adhesive powder raw material is injected into the mixing capsule 6 through the powder raw material inlet 11 and the powder injection port 12. In this state, the liquid raw material The electromagnetic valves inside the material injection port 13 and the vacuum suction port 14 are closed, and it should be noted that when injecting the bone adhesive powder raw material through the powder raw material inlet 11 and the powder injection port 12, vacuum injection should be ensured; after the powder raw material is injected into the mixing capsule 6, the electromagnetic valve inside the liquid raw material injection port 13 is opened, and the electromagnetic valves inside the powder raw material injection port 12 and the vacuum suction port 14 are closed. The liquid raw material extraction rod 3 is manually pressed and the negative pressure inside the mixing capsule 6 is cooperated to inject the liquid raw material into the mixing capsule 6 to complete the vacuum injection of the entire raw material. At this time, the electromagnetic valves inside the powder raw material injection port 12, the liquid raw material injection port 13, and the vacuum suction port 14 are closed, and the liquid raw material and powder raw material inside the mixing capsule 6 are mixed by the bone adhesive mixing unit to form a bone adhesive paste.

[0073] After the entire bone adhesive mixing work is completed, it is only necessary to control the bone adhesive extrusion assembly 8 to move the lower extrusion roller 88 and the upper extrusion roller 89 to the second olive-shaped capsule 65 on the far right, and the finished bone adhesive can be discharged through the bone adhesive discharge port 15.

[0074] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0075] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A portable bone adhesive vacuum mixing device for intraoperative use, comprising an extraction shell and a mixing shell, wherein the extraction shell and the mixing shell are detachably connected; characterized in that: A micro vacuum pump is fixedly connected to the upper end of the extraction shell, and a powder raw material inlet is provided at a position near the micro vacuum pump on the upper end of the extraction shell, a liquid raw material storage chamber is provided inside the extraction shell, a liquid raw material injection port connected to the liquid raw material storage chamber is provided at one end of the extraction shell, a liquid raw material extraction rod is slidably and sealedly connected inside the liquid raw material storage chamber, a powder material injection port and a vacuum suction port are symmetrically provided at one end of the extraction shell with respect to the liquid raw material injection port, and the powder material injection port is connected to the powder raw material inlet through a pipeline, and the vacuum suction port is connected to the micro vacuum pump through a pipeline; A mixing capsule is provided inside the mixing shell, and the mixing capsule is connected with a liquid raw material injection port, a powder injection port and a vacuum suction port. A bone adhesive discharge port is provided in the middle of one end of the mixing shell, and the bone adhesive discharge port is connected with one end of the mixing capsule. A bone adhesive mixing unit is provided inside the mixing shell.

2. The portable bone adhesive vacuum mixing device for intraoperative use according to claim 1, characterized in that: A control panel is arranged on one side of the upper surface of the extraction shell, and a storage battery is arranged at a position close to the control panel on the upper surface of the extraction shell.

3. The portable bone adhesive vacuum mixing device for intraoperative use according to claim 1, characterized in that: The mixing capsule includes a trapezoidal interface capsule, one end of which is provided with three connection ports, and the three connection ports can be detachably connected to the powder raw material inlet, the powder injection port and the vacuum suction port respectively, one end of the trapezoidal interface capsule is fixed to and connected to the No. 1 olive-shaped capsule, one end of the No. 1 olive-shaped capsule is fixed to and connected to the middle convergence channel, one end of the middle convergence channel is fixed to and connected to the No. 2 olive-shaped capsule, and the No. 2 olive-shaped capsule is connected to the bone adhesive discharge port.

4. The portable bone adhesive vacuum mixing device for intraoperative use according to claim 3, characterized in that: The trapezoidal interface capsule, the first olive-shaped capsule, and the second olive-shaped capsule are all made of rubber material, and the middle convergence channel is made of hard plastic material.

5. The portable bone adhesive vacuum mixing device for intraoperative use according to claim 3, characterized in that: The bone adhesive mixing unit comprises a bone adhesive extrusion assembly arranged at one end of the mixing shell, a return material extrusion assembly arranged on the inner wall of the mixing shell and used in conjunction with the bone adhesive extrusion assembly, and a preliminary material mixing assembly arranged below the first olive-shaped capsule; The bone adhesive extrusion assembly includes a mounting block fixedly connected to the bottom wall of the mixing shell, and a No. 2 motor fixedly connected to the side wall of one end of the mixing shell, one end of the mounting block is rotatably connected to a ball screw, one end of the ball screw penetrates the mixing shell and is fixedly connected to the output shaft of the No. 2 motor, the ball screw is spirally connected to a No. 1 ball nut seat, the lower end of the No. 1 ball nut seat is fixedly connected to a No. 3 motor, the output shaft of the No. 3 motor penetrates the No. 1 ball nut seat and is fixedly connected to a reciprocating screw, the upper and lower ends of the reciprocating screw are symmetrically spirally connected to two No. 2 ball nut seats, one end of the No. 2 ball nut seat at the lower end is fixedly connected to a lower extrusion roller, and one end of the No. 2 ball nut seat at the upper end is fixedly connected to an upper extrusion roller.

6. The portable bone adhesive vacuum mixing device for intraoperative use according to claim 5, characterized in that: The return material extrusion assembly includes a No. 1 motor fixedly connected to the outer wall of the mixing shell, the output shaft of the No. 1 motor passes through the mixing shell and is fixedly connected to an incomplete gear, the outer side of the incomplete gear is sleeved with a rectangular frame, and the upper and lower ends of the inside of the rectangular frame are fixedly connected to extrusion racks, and the incomplete gear is meshed with the two sets of extrusion racks, one end of the rectangular frame is fixedly connected to an L-shaped rod, one end of the L-shaped rod is fixedly connected to a storage extrusion part, the inner wall of the mixing shell is fixedly connected to a limit frame, and the L-shaped rod and the limit frame pass through and are slidably connected; the other end of the rectangular frame is fixedly connected to a push rod, and one end of the push rod is movably connected to a trigger assembly.

7. The portable bone adhesive vacuum mixing device for intraoperative use according to claim 6, characterized in that: The storage extrusion portion comprises a cylinder body fixedly connected to one end of the L-shaped rod, a trumpet-shaped storage opening is provided through the inside of the cylinder body, and the major end of the trumpet-shaped storage opening faces the first olive-shaped capsule body.

8. The portable bone adhesive vacuum mixing device for intraoperative use according to claim 6, characterized in that: The trigger assembly includes a mounting shell fixedly connected to the inner wall of the mixing shell, one side of the mounting shell is penetrated by a push rod and is slidably connected, and the push rod extends to one end inside the mounting shell and is fixedly connected to a positive pole, one end inside the mounting shell is fixedly connected to a retaining frame, the middle position of the retaining frame is fixedly connected to a negative pole, one end of the negative pole is fixedly connected to a signal transceiver module, and the positive pole, negative pole and signal transceiver module are connected in series.

9. The portable bone adhesive vacuum mixing device for intraoperative use according to claim 5, characterized in that: The preliminary mixing component includes two connecting seats fixedly connected to the middle position of the bottom wall of the mixing shell, a rotating rod is rotatably connected between the two connecting seats, a V-shaped double-sided mixing clapboard is fixedly connected to the middle position of the outer circumferential surface of the rotating rod, the rotating rod passes through one of the connecting seats and is fixedly connected to a swing gear, a reciprocating rack is meshed and connected to the upper end of the swing gear, both ends of the reciprocating rack are fixedly connected to a toothless rod body, the bottom wall of the mixing shell is also provided with two groups of supporting frames, and the combination of the reciprocating rack and the toothless rod body is slidably connected to the two groups of supporting frames, one end of one of the toothless rod bodies is fixedly connected to a swing frame, the bottom wall of the mixing shell is also provided with a No. 4 motor, and the output shaft of the No. 4 motor is fixedly connected to the swing shaft connecting rod, one end of the swing shaft connecting rod is fixedly connected to the swing shaft, the swing shaft passes through the swing frame, and the reciprocating rack and the output shaft of the No. 4 motor are located in the same horizontal plane, and the length of the swing shaft connecting rod is half of the axial length of the swing frame.

10. The portable bone adhesive vacuum mixing device for intraoperative use according to claim 1, characterized in that: Buckles are fixedly connected to the four corners of one end of the mixing shell, and slots are provided at the four corners of one end of the extraction shell. The extraction shell and the mixing shell are detachably connected via the buckles and the slots.

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