阅读说明：本技术 一种骨水泥搅拌填充装置 (Bone cement stirring filling device ) 是由 徐凯 于 2019-10-08 设计创作，主要内容包括：本发明公开了一种骨水泥搅拌填充装置,包括搅拌装置、填充装置和注水组件,所述搅拌装置的底部连接有填充装置,所述搅拌装置的一侧安装有注水组件,所述搅拌装置包括第一筒体,所述第一筒体的底部设置有缩口部,所述填充装置包括第二筒体,所述第二筒体的内部通过螺栓固定有钢丝滤网,所述钢丝滤网的内壁滑动连接有活塞,所述第二筒体的顶部通过轴承活动连接有螺杆,所述螺杆的一端连接有旋钮,所述活塞上开设有螺孔,所述螺杆与螺孔相螺接,所述缩口部穿过第二筒体的顶部外壁,所述活塞为环状,所述活塞上对应通过铰链连接有活动挡板,所述活动挡板为半圆形,本发明,具有省时省力和搅拌效果好的特点。(The invention discloses a bone cement stirring and filling device, which comprises a stirring device, a filling device and a water injection assembly, wherein the bottom of the stirring device is connected with the filling device, one side of the stirring device is provided with the water injection assembly, the stirring device comprises a first barrel, the bottom of the first barrel is provided with a necking part, the filling device comprises a second barrel, a steel wire filter screen is fixed in the second barrel through a bolt, the inner wall of the steel wire filter screen is connected with a piston in a sliding way, the top of the second barrel is movably connected with a screw rod through a bearing, one end of the screw rod is connected with a knob, the piston is provided with a screw hole, the screw rod is in threaded connection with the screw hole, the necking part penetrates through the outer wall of the top of the second barrel, the piston is annular, the piston is correspondingly connected with a movable baffle through a hinge, and, the invention has the characteristics of time and labor saving and good stirring effect.)

1. The utility model provides a bone cement stirring filling device, includes agitating unit (1), filling device (2) and water injection subassembly (3), its characterized in that: the bottom of agitating unit (1) is connected with filling device (2), water injection subassembly (3) are installed to one side of agitating unit (1), agitating unit (1) includes first barrel (11).

2. the bone cement mixing and filling device as claimed in claim 1, wherein: the bottom of first barrel (11) is provided with throat portion (112), filling device (2) include second barrel (21), the inside of second barrel (21) is fixed with steel wire filter screen (25) through the bolt, the inner wall sliding connection of steel wire filter screen (25) has piston (26), there is screw rod (241) at the top of second barrel (21) through bearing swing joint, the one end of screw rod (241) is connected with knob (24), the screw has been seted up on piston (26), screw rod (241) and screw hole spiro union, the top outer wall of second barrel (21) is passed in throat portion (112).

3. The bone cement mixing and filling device as claimed in claim 2, wherein: the piston (26) is annular, the piston (26) is correspondingly connected with a movable baffle (261) through a hinge, the movable baffle (261) is semicircular, the whole circle formed by the two movable baffles (261) fills the hollow part of the piston (26), a spring (262) is connected between the movable baffle (261) and the piston (26), and the area of the necking part (112) is smaller than the area of the circle formed by the movable baffles (261).

4. the bone cement mixing and filling device as claimed in claim 2, wherein: the bottom of steel wire filter screen (25) is seted up porosely, and the inner wall in hole is provided with portion of tightening (251), it has acting line (28) to tighten to alternate on portion of tightening (251), rope reel (27) are installed to the both sides outer wall correspondence of second barrel (21), and act as go-between (28) winding on rope reel (27), install ratchet (271) on rope reel (27), be provided with pawl (272) on rope reel (27), and ratchet (271) and pawl (272) looks joint.

5. the bone cement mixing and filling device as claimed in claim 2, wherein: there is two to ten millimeters spaces between steel wire filter screen (25) and second barrel (21), the outer wall of second barrel (21) is provided with storage water tank (23), the bottom through connection of second barrel (21) has injection hose (22).

6. the bone cement mixing and filling device as claimed in claim 1, wherein: the stirring device is characterized in that a motor (12) is installed at the top of the first barrel (11), an output shaft of the motor (12) is connected with a stirring shaft (14) through a coupling, a first stirring impeller (15) is fixed to the outside of the stirring shaft (14) through a bolt, a sleeve (16) is movably connected to the outside of the stirring shaft (14) through a bearing, a second stirring impeller (17) is fixed to the outside of the sleeve (16) through a bolt, a fixed shell (18) is movably installed to the outside of the stirring shaft (14) through a bearing, the fixed shell (18) is fixed to the inner wall of the first barrel (11), a rotating shaft (181) is movably connected to the inner wall of the fixed shell (18) through a bearing, a first bevel gear (182) is sleeved to the outside of the rotating shaft (181), a third bevel gear (184) is further arranged to the outside of the stirring shaft (14), a second bevel gear (183) is sleeved to the outside, the third bevel gear (184) and the second bevel gear (183) are meshed with the second bevel gear (183).

7. The bone cement mixing and filling device as claimed in claim 1, wherein: one side of first barrel (11) is fixed with water storage chamber (33) through the welded fastening, the inner wall in water storage chamber (33) evenly is provided with shower nozzle (35), the inner wall of first barrel (11) is passed in shower nozzle (35), one side through connection in water storage chamber (33) has outlet pipe (32), the one end through connection of outlet pipe (32) has water pump (31), the water inlet through connection of water pump (31) has inlet tube (34).

8. The bone cement mixing and filling device as claimed in claim 1, wherein: seted up charge door (111) on first barrel (11), the width of charge door (111) is little less than the length of first barrel (11), there is charging cover (13) inner wall of charge door (111) through bearing movable mounting, be provided with handle (131) on charging cover (13).

Technical Field

the invention relates to the technical field of medical instruments, in particular to a bone cement stirring and filling device.

background

Bone cement is a common name of bone cement, is a medical material used for orthopedic surgery, and has partial physical properties and appearance and properties after solidification rather like white cement for building and decoration. The bone cement consists of two preparations of white powder and colorless liquid with pungent smell.

The existing bone cement stirring and filling processes are respectively completed on two instruments, and after the stirring is completed, the bone cement needs to be separately drawn into a filling instrument to fill the bones of a human body, so that a large amount of time is consumed by a doctor in the process, and the process is undoubtedly harmful to the treatment process of competing for minutes and seconds; the existing bone cement stirring shaft only adopts one-way stirring, and although the rotation direction can be changed, the bone cement is viscous, so that the fibers of the bone cement cannot be cut off, and the stirring effect is poor; in addition, excessive water needs to be squeezed out after the bone cement is stirred so as to ensure that the water cannot seep when the bone cement is injected into a wound surface in a patient body, and the dryness of the wound is ensured. Therefore, it is necessary to design a bone cement stirring and filling device which is time-saving, labor-saving and good in stirring effect.

Disclosure of Invention

The invention aims to provide a bone cement stirring and filling device to solve the problems in the background technology.

In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a bone cement stirring filling device, includes agitating unit, filling device and water injection subassembly, agitating unit's bottom is connected with filling device, the water injection subassembly is installed to one side of agitating unit, agitating unit includes first barrel, and filling device is used for filling inside bone cement to the human body in, and agitating unit is used for stirring the intensive mixing to bone cement, and the water injection subassembly is used for carrying out solid-liquid mixture, and will stir and inject and integrate as an organic wholely, can directly inject after having stirred, has improved treatment efficiency greatly.

Further, the bottom of first barrel is provided with the throat, filling device includes the second barrel, the inside of second barrel is fixed with the steel wire filter screen through the bolt, the inner wall sliding connection of steel wire filter screen has the piston, the top of second barrel has the screw rod through bearing swing joint, the one end of screw rod is connected with the knob, the screw has been seted up on the piston, screw rod and screw looks spiro union, the throat passes the top outer wall of second barrel, and the aperture of steel wire filter screen only can allow moisture to leach, and not allow bone cement to leach, and when extrudeing the piston downwards, the space in the steel wire filter screen reduces, extrudes moisture, can not cause the infiltration when guaranteeing to pour into the internal wound face of patient, guarantees the dry degree of wound.

further, the piston is annular, the piston is correspondingly connected with a movable baffle through a hinge, the movable baffle is semicircular, the whole circle formed by the two movable baffles fills the hollow part of the piston, a spring is connected between the movable baffle and the piston, the area of the necking part is smaller than the area of the circle formed by the movable baffles, when stirring is carried out, the piston is moved to the position where the necking part just contacts with the piston by a rotary knob, the movable baffle blocks the hole of the piston due to the pulling action of the spring to prevent the bone cement from falling down, when the stirring is finished, the rotary knob is continuously rotated to enable the necking part to abut against the movable baffles and separate the movable baffles, at the moment, the bone cement can fall into the steel wire filter screen due to gravity, when the steel wire filter screen is filled with the required bone cement, the piston moves down, at the moment, the spring enables the movable baffles to be pulled back, and the piston is, the space in the steel wire filter screen is convenient to seal, the structure realizes the functions of controlling the valve sealed in the stirring process and the piston for extruding bone cement to remove moisture, simplifies the connecting structure of stirring and filling and improves the working efficiency.

Further, the bottom of steel wire filter screen is seted up porosely, and the inner wall in hole is provided with the portion of tightening, it has the acting as go-between to alternate in the portion of tightening, the both sides outer wall correspondence of second barrel is installed the drum, and the winding of acting as go-between is on the drum, install the ratchet on the drum, be provided with the pawl on the drum, and ratchet and pawl looks joint, utilize the cooperation of ratchet and pawl, tighten up the portion of tightening when the extrusion, the portion of tightening is flexible material, utilizes the portion of tightening to loosen when the injection of acting as go-between, makes things convenient for the injection.

Further, there is the space of two to ten millimeters between steel wire filter screen and the second barrel, the outer wall of second barrel is provided with the storage water tank, the bottom through connection of second barrel has injection hose, and the storage water tank is used for storing and releasing the unnecessary moisture of extruding in the steel wire filter screen, and injection hose is used for injecting bone cement to human marrow.

further, a motor is installed on the top of the first barrel, an output shaft of the motor is connected with a stirring shaft through a coupling, a first stirring impeller is fixed on the outer portion of the stirring shaft through a bolt, a sleeve is movably connected on the outer portion of the stirring shaft through a bearing, a second stirring impeller is fixed on the outer portion of the sleeve through a bolt, a fixed shell is movably installed on the outer portion of the stirring shaft through a bearing and fixed with the inner wall of the first barrel, a rotating shaft is movably connected on the inner wall of the fixed shell through a bearing, a first bevel gear is sleeved on the outer portion of the rotating shaft, a third bevel gear is further arranged on the outer portion of the stirring shaft, a second bevel gear is sleeved on the outer portion of the sleeve, the third bevel gear and the second bevel gear are meshed with the second bevel gear, and the second stirring impeller and the first stirring impeller are coaxially and reversely rotated, the overlong bone cement fibers can be cut off during stirring, so that the bone cement is uniformly stirred, and the performance of the bone cement is improved.

Further, one side of first barrel has the water storage chamber through welded fastening, the inner wall in water storage chamber evenly is provided with the shower nozzle, the shower nozzle passes the inner wall of first barrel, one side through connection in water storage chamber has the outlet pipe, the one end through connection of outlet pipe has the water pump, the water inlet through connection of water pump has the inlet tube, when spraying bone cement powder, inserts external water source with the inlet tube, goes into the water storage chamber with the water pump after the water pump pressurization, and the rethread shower nozzle pressurization sprays to the inside of first barrel, sprays evenly to be convenient for mix immediately, improves stirring efficiency, when wasing first barrel, washs first barrel through the shower nozzle in the same reason.

Further, the charge door has been seted up on the first barrel, the width of charge door is slightly littleer than the length of first barrel, the inner wall of charge door has the charging cover through bearing movable mounting, the charging cover is provided with the handle, and the length of charge door can be when reinforced spilling bone cement powder inside first barrel very conveniently, and two sets of impeller can play a role immediately, save the churning time.

compared with the prior art, the invention has the following beneficial effects: in the invention, the raw materials are mixed,

1. the bone cement in the steel wire filter screen is extruded through the up-and-down translation of the piston, water is extruded to the outside of the steel wire filter screen and collected into the water storage tank, the stirred bone cement can be extruded conveniently to remove redundant water, and water seepage at the wound in a patient body is avoided;

2. The piston is matched with the necking part after being perforated, the piston is moved to a position where the piston does not collide with the necking part during stirring, the sealing of the stirring device is ensured, the piston is moved to the position where the piston collides with the necking part after the stirring is finished, and the bone cement slides into the steel wire filter screen at the moment, so that the stirring and the injection are seamlessly jointed, and the operation steps of a doctor are greatly simplified;

3. by arranging the stirring device into two groups of blades which coaxially rotate reversely, overlong bone cement fibers can be cut off during stirring, so that the bone cement is uniformly stirred, and the performance of the bone cement is improved;

4. the tightening part, the pull rope and other members are arranged below the steel wire filter screen, so that the opening of the steel wire filter screen can be tightened when water is squeezed, the opening is opened when injection is carried out, the piston is pushed to complete injection, and the inside of the steel wire filter screen can be conveniently cleaned compared with a conventional valve type structure;

5. Through being provided with the water injection subassembly, can utilize the shower nozzle to the even water injection in the first barrel when the bone cement filler, improve solid-liquid mixing efficiency, insert the inlet tube with the clear water when the stirring finishes, utilize the high pressure to evenly wash the inside of first barrel, prevent that bone cement from bonding at the inner wall.

drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the cross-sectional installation of the filling device of the present invention with the lower end of the first barrel;

FIG. 3 is a partial cross-sectional structural schematic view of a second barrel of the present invention;

FIG. 4 is a cross-sectional structural schematic view of a second cylinder of the present invention;

FIG. 5 is a schematic cross-sectional view of a first cartridge of the present invention;

FIG. 6 is a schematic view of the stirring device of the present invention;

FIG. 7 is a partial cross-sectional view of the mixing shaft and stationary housing of the present invention;

FIG. 8 is a schematic top view of the mounting of the piston and flapper of the present invention;

In the figure: 1. a stirring device; 2. a filling device; 3. a water injection assembly; 11. a first cylinder; 111. a feed inlet; 112. a necking part; 12. a motor; 13. a feeding cover; 131. a handle; 14. a stirring shaft; 15. a first stirring impeller; 16. a sleeve; 17. a second stirring impeller; 18. a stationary case; 181. a rotating shaft; 182. a first bevel gear; 183. a second bevel gear; 184. a third bevel gear; 21. a second cylinder; 22. an injection hose; 23. a water storage tank; 24. a knob; 241. a screw; 25. a steel wire filter screen; 251. a tightening part; 26. a piston; 261. a movable baffle; 262. a spring; 27. a rope reel; 271. a ratchet wheel; 272. a pawl; 28. a pull wire; 31. a water pump; 32. a water outlet pipe; 33. a water storage cavity; 34. a water inlet pipe; 35. and (4) a spray head.

Detailed Description

the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-8, the present invention provides the following technical solutions: a bone cement stirring and filling device comprises a stirring device 1, a filling device 2 and a water injection assembly 3, wherein the bottom of the stirring device 1 is connected with the filling device 2, the water injection assembly 3 is installed on one side of the stirring device 1, the stirring device 1 comprises a first barrel 11, the filling device 2 is used for filling internal bone cement into a human body, the stirring device 1 is used for stirring and fully mixing the bone cement, the water injection assembly is used for mixing solid and liquid, stirring and injection are integrated into a whole, and the bone cement can be directly injected after being stirred, so that the treatment efficiency is greatly improved;

The bottom of the first cylinder 11 is provided with a necking part 112, the filling device 2 comprises a second cylinder 21, a steel wire filter screen 25 is fixed inside the second cylinder 21 through bolts, the inner wall of the steel wire filter screen 25 is connected with a piston 26 in a sliding mode, the top of the second cylinder 21 is movably connected with a screw 241 through a bearing, one end of the screw 241 is connected with a knob 24, the piston 26 is provided with a screw hole, the screw 241 is in threaded connection with the screw hole, the necking part 112 penetrates through the outer wall of the top of the second cylinder 21, the hole diameter of the steel wire filter screen 25 only can allow water to leach out, but not allow bone cement to leach out, when the piston 26 is pressed downwards, the space in the steel wire filter screen 25 is reduced, water is squeezed out, and when the steel wire filter screen is injected;

The piston 26 is ring-shaped, the piston 26 is correspondingly connected with a movable baffle 261 through a hinge, the movable baffle 261 is semicircular, the whole circle formed by the two movable baffles 261 fills the hollow part of the piston 26, a spring 262 is connected between the movable baffle 261 and the piston 26, the area of the necking part 112 is smaller than the circle area formed by the movable baffle 261, when stirring is carried out, the piston 26 is moved to the position where the necking part 112 just contacts with the piston 26 by the rotary knob 24, the movable baffle 261 blocks the hole of the piston 26 due to the pulling action of the spring 262 to prevent the bone cement from falling down, when the stirring is finished, the rotary knob 24 is continuously rotated to enable the necking part 112 to abut against the movable baffle 261 and separate the movable baffle 261, at the moment, the bone cement can fall into the steel wire filter screen 25 due to gravity, when the required bone cement is filled in the steel wire filter screen 25, the piston 26 moves down, at the moment, the spring enables, the piston 26 is of a solid structure, so that the space in the steel wire filter screen 25 is convenient to seal, the structure realizes the functions of a valve for controlling sealing in the stirring process and a piston for extruding bone cement to remove water, the connecting structure for stirring and filling is simplified, and the working efficiency is improved;

The bottom of the steel wire filter screen 25 is provided with a hole, the inner wall of the hole is provided with a tightening part 251, the tightening part 251 is connected with a pull wire 28 in an inserting way, the outer walls of two sides of the second cylinder 21 are correspondingly provided with a rope disc 27, the pull wire 28 is wound on the rope disc 27, the rope disc 27 is provided with a ratchet wheel 271, the rope disc 27 is provided with a pawl 272, the ratchet wheel 271 is connected with the pawl 272 in a clamping way, the tightening part 251 is tightened during extrusion by utilizing the matching of the ratchet wheel 271 and the pawl 272, the tightening part 251 is made of flexible materials, and the tightening part 251 is loosened by utilizing the pull wire 28 during injection, so that the injection is convenient;

A gap of two to ten millimeters is formed between the steel wire filter screen 25 and the second cylinder 21, a water storage tank 23 is arranged on the outer wall of the second cylinder 21, an injection hose 22 is connected to the bottom of the second cylinder 21 in a penetrating manner, the water storage tank 23 is used for storing and releasing redundant water squeezed out of the steel wire filter screen 25, and the injection hose 22 is used for injecting bone cement into bone marrow of a human body;

The top of the first barrel 11 is provided with a motor 12, an output shaft of the motor 12 is connected with a stirring shaft 14 through a coupling, the outside of the stirring shaft 14 is fixed with a first stirring impeller 15 through a bolt, the outside of the stirring shaft 14 is also movably connected with a sleeve 16 through a bearing, the outside of the sleeve 16 is fixed with a second stirring impeller 17 through a bolt, the outside of the stirring shaft 14 is movably installed with a fixed shell 18 through a bearing, the fixed shell 18 is fixed with the inner wall of the first barrel 11, the inner wall of the fixed shell 18 is movably connected with a rotating shaft 181 through a bearing, the outside of the rotating shaft 181 is sleeved with a first bevel gear 182, the outside of the stirring shaft 14 is also provided with a third bevel gear 184, the outside of the sleeve 16 is also sleeved with a second bevel gear 183, the third bevel gear 184 and the second bevel gear 183 are both meshed with the second bevel gear 183, and the second stirring impeller 17 and the first stirring impeller 15 are coaxially reversed, so that the, the cement is uniformly stirred, and the performance of the bone cement is improved;

A water storage cavity 33 is fixed on one side of the first barrel 11 through welding, spray heads 35 are uniformly arranged on the inner wall of the water storage cavity 33, the spray heads 35 penetrate through the inner wall of the first barrel 11, a water outlet pipe 32 is connected to one side of the water storage cavity 33 in a penetrating manner, a water pump 31 is connected to one end of the water outlet pipe 32 in a penetrating manner, a water inlet of the water pump 31 is connected with a water inlet pipe 34 in a penetrating manner, when the bone cement powder is sprayed, the water inlet pipe 34 is connected to an external water source, the water is pumped into the water storage cavity 33 after being pressurized by the water pump 31, and then the water is sprayed into the first barrel 11 through the spray heads 35 in a pressurizing manner, so that the water is uniformly sprayed and is convenient to be immediately;

the feed inlet 111 has been seted up on first barrel 11, and the width of feed inlet 111 is slightly littleer than the length of first barrel 11, and there is charging cover 13 inner wall of feed inlet 111 through bearing movable mounting, is provided with handle 131 on the charging cover 13, and the length of feed inlet 111 can be when reinforced spills bone cement powder inside first barrel 11 very conveniently evenly, and two sets of impeller can play a role immediately during, saves churning time.

the working principle is as follows: when the device is used, the filling device 2 is used for filling the bone cement in the human body, the stirring device 1 is used for stirring and fully mixing the bone cement, the water injection assembly is used for mixing solid and liquid, the stirring and the injection are integrated, and the injection can be directly carried out after the stirring is finished, so that the treatment efficiency is greatly improved; the aperture of the steel wire filter screen 25 only allows water to be leached out, but not bone cement, when the piston 26 is extruded downwards, the space in the steel wire filter screen 25 is reduced, water is squeezed out, and water seepage cannot be caused when the water is injected into a wound surface in a patient body, so that the dryness of the wound is ensured; the aperture of the steel wire filter screen 25 only allows water to be leached out, but not bone cement, when the piston 26 is extruded downwards, the space in the steel wire filter screen 25 is reduced, water is squeezed out, and water seepage cannot be caused when the water is injected into a wound surface in a patient body, so that the dryness of the wound is ensured; the tightening part 251 is loosened by the pull wire 28 during injection, thereby facilitating injection; the water storage tank 23 is used for storing and releasing the excess water extruded from the steel wire filter 25, and the injection hose 22 is used for injecting bone cement into the bone marrow of the human body; through the second stirring impeller 17 and the first stirring impeller 15 which are coaxially reversed, overlong bone cement fibers can be cut off during stirring, so that the bone cement fibers are uniformly stirred, and the performance of the bone cement is improved; when the bone cement powder is sprayed, the water inlet pipe 34 is connected to an external water source, the water is pumped into the water storage cavity 33 after being pressurized by the water pump 31, and then the water is pressurized and sprayed into the first barrel 11 through the spray head 35, so that the spraying is uniform, the mixing is convenient, the stirring efficiency is improved, and when the first barrel 11 is cleaned, the first barrel 11 is cleaned through the spray head 35 in the same way; the length of charge door 111 can be when reinforced very conveniently spill bone cement powder in first barrel 11 inside evenly, and two sets of impeller can play a role immediately, saves the churning time.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.