CN114129250A

CN114129250A - Speed-regulating bone cement filling instrument

Info

Publication number: CN114129250A
Application number: CN202111453857.5A
Authority: CN
Inventors: 杨承刚; 孙晓峰; 白亚平; 张丛丛; 尚玉荣
Original assignee: Gu'an Bojian Biotechnology Co ltd
Current assignee: Gu'an Bojian Biotechnology Co ltd
Priority date: 2021-12-01
Filing date: 2021-12-01
Publication date: 2022-03-04

Abstract

The invention discloses a speed-regulating bone cement filling instrument which comprises an injection assembly, a conduction structure, a power assisting device and a power supply structure, wherein the injection assembly is connected with the conduction structure; the power assisting device is connected with the power supply structure; the injection assembly comprises a storage structure and a thrust structure; the storage structure is arranged inside the thrust structure and connected with the thrust structure; one end of the conduction structure is connected with the thrust structure, and the other end of the conduction structure is connected with the power assisting device; the power assisting device is connected with the power supply structure; the power assisting device comprises a power assisting shell, a pushing structure, a control structure and a force adjusting assembly for adjusting pushing force; the pushing structure and the force adjusting assembly are arranged in the power assisting shell; the control structure is arranged at the top of the power assisting shell. The beneficial effect of this design: the power assisting device is arranged to reduce the hand strength loss of a doctor; the power assisting device is separated from the injection assembly, so that the weight of the part held by a doctor is reduced, and the burden of the doctor is reduced; the thrust of the injection is flexibly adjusted, and the requirements of various patients are met.

Description

Speed-regulating bone cement filling instrument

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a speed-regulating bone cement filling instrument.

Background

Bone cement is a common name of bone cement, is a medical material used for orthopedic surgery, and has a popular name due to partial physical properties and appearance and properties after solidification rather like white cement for building and decoration.

Through years of research, bone cement was produced in the beginning of the 60 s of the 20 th century. For convenient storage and transportation, the bone cement is composed of two parts of white powder and colorless liquid with pungent smell, and when in use, the white powder and the colorless liquid are poured together according to a certain proportion and are blended together, so that the polymerization reaction can occur at room temperature. Starting like mortar and then like porridge and then becoming dough, can be kneaded, extruded into any shape and finally gradually solidified, the whole process being only a dozen minutes. Before hardening, the surgeon places it on the site where the joint is to be replaced and then attaches the artificial joint. By the end of the reaction, the local temperature rises slightly. Feel somewhat hot to the touch. At this time, the bone cement, which is as strong as the high-quality building cement, successfully inlays the artificial joint and the human bone and firmly fixes the artificial joint. After the operation, the replaced joint can play a role after short-term recovery. If the artificial hip joint replacement is adopted, the walking robot can walk in the lower part. This fixation is fairly secure and can be maintained for over a decade or even twenty years.

The current bone cement fills the apparatus and relies on doctor's hand strength propelling movement, because bone cement is more viscous, can lead to the doctor's hand to produce the muscle shake because of taking off the power during a large amount of uses, leads to bone cement to fill the off normal, and bone cement is unrestrained inside patient's wound even, and the aggravation patient is painful. And different injection speeds are selected according to the bone injury condition of a patient during the injection of the bone cement, and even the injection speed is changed for many times during the injection of a single patient so as to ensure the integrity of filling.

The invention aims at the problems and provides a speed-regulating bone cement filling device.

Disclosure of Invention

In order to overcome the problems set forth in the background, the present invention provides a speed-regulating bone cement filling apparatus.

A speed-regulating bone cement filling apparatus comprises an injection assembly, a conduction structure, a power assisting device and a power supply structure; the power assisting device is connected with the power supply structure; the injection assembly comprises a storage structure and a thrust structure; the storage structure is arranged inside the thrust structure and connected with the thrust structure; one end of the conduction structure is connected with the thrust structure, and the other end of the conduction structure is connected with the power assisting device; the power assisting device is connected with the power supply structure; the power assisting device comprises a power assisting shell, a pushing structure, a control structure and a force adjusting assembly for adjusting pushing force; the pushing structure and the force adjusting assembly are arranged inside the power assisting shell; the control structure is arranged at the top of the power assisting shell.

Further, the storage structure comprises a storage cabin and a storage push rod, and bone cement is stored in a cavity between the storage cabin and the storage push rod.

Further, the storage push rod is arranged inside the storage cabin, the storage push rod is inserted into the storage cabin, and the storage push rod can slide inside the storage cabin.

Further, the storage cabin comprises an injection needle, a storage shell and a positioning plate.

Furthermore, one end of the storage shell is fixedly connected with the injection needle, and the other end of the storage shell is fixedly connected with the positioning plate; the diameter of the injection needle is smaller than the diameter of the storage housing.

Further, the injection needle head is of a circular tubular structure; the storage shell is of a circular cylindrical structure; the locating plate is of a regular sheet structure with a circular through hole in the middle.

Further, the storage push rod comprises a rubber plug, an injection push column and a stress plate.

Furthermore, one end of the injection pushing column is fixedly connected with the rubber plug, and the other end of the injection pushing column is fixedly connected with the stress plate; the rubber plug is inserted into the inner side of the storage shell; the diameter of the injection push rod is smaller than that of the rubber plug.

Further, the rubber plug is of a cylindrical structure; the injection push column is of a circular columnar structure; the stress plate is of a circular plate-shaped structure.

Furthermore, the thrust structure comprises a thrust cover plate, a thrust support and a support push rod.

Further, the thrust cover plate and the thrust support are locked through a bolt; the bracket push rod is inserted with the thrust bracket; the storage structure is arranged in a gap between the thrust cover plate and the thrust support.

Furthermore, the thrust cover plate is of a semicircular tubular structure, and two ends of the thrust cover plate are respectively provided with a first mounting plate connected with the thrust support.

Furthermore, the thrust support comprises a handle, a control key, a thrust cylinder and a storage rack.

Furthermore, one end of the thrust cylinder is fixedly connected with the storage rack, and the bottom of the thrust cylinder is fixedly connected with the handle; the control key is inserted into the handle; the thrust cylinder is inserted with the support push rod; the thrust cylinder is connected with the conducting structure.

Furthermore, the thrust cylinder is of a hollow circular columnar structure, and a through hole for inserting the support push rod is formed in one side connected with the storage frame; the bottom of one side, close to the storage rack, of the thrust cylinder is provided with a force release port; and one side of the thrust cylinder, which is far away from the storage rack, is provided with a thrust port.

Furthermore, the control key is connected with the power supply assembly and the power assisting device through wires respectively, controls the power assisting device to start, and drives the support push rod to move, so that the storage push rod is pushed, the volume of a cavity formed by the storage cabin and the storage push rod is reduced, and the aim of injecting the bone cement stored in the storage structure is fulfilled.

Furthermore, the support push rod comprises a thrust plate, a movable push column and a thrust cylinder clapboard.

Furthermore, one end of the movable push column is fixedly connected with the thrust plate, and the other end of the movable push column is fixedly connected with the thrust cylinder partition plate; the movable push column is inserted with the thrust cylinder; the thrust cylinder partition plate is arranged in the thrust cylinder and divides the thrust cylinder into two parts with variable volumes, and when the volumes of cavities of the two parts are changed, the thrust cylinder partition plate is driven to move, so that the support push rod is driven to move, the storage push rod is driven to move, the volumes of the cavities formed by the storage cabin and the storage push rod are reduced, and the purpose of injecting bone cement stored in the storage structure is achieved.

Further, the thrust structure further comprises an injection support.

Further, the injection support comprises a support, a support mounting seat and a support locking plate.

Further, the support mounting seat is arranged at the bottom of the storage rack and is fixedly connected with the storage rack; the bracket is arranged in a gap between the bracket mounting seat and the bracket locking plate; the support mounting seat and the support locking plate are locked through bolts, and the support is firmly fixed.

Further, the conducting structure comprises a thrust conduit and a force discharge conduit.

Furthermore, one end of the thrust conduit is fixedly connected with a thrust port of the thrust cylinder, and the other end of the thrust conduit is connected with the power assisting device; one end of the pressure relief conduit is fixedly connected with a pressure relief port of the thrust cylinder, and the other end of the pressure relief conduit is connected with the power assisting device; the inner diameters of the thrust conduit and the thrust port are equal; the inner diameter of the pressure relief conduit is equal to that of the pressure relief port.

Further, the power-assisted shell is arranged outside the pushing structure and wraps the pushing structure.

Furthermore, the pushing structure comprises a power cylinder, a driven wheel, a driven shaft, a driving wheel, a power-assisted motor and a liquid cabin.

Furthermore, the liquid bin, the thrust guide pipe, the force release guide pipe, the power cylinder and the thrust cylinder are filled with viscous liquid.

Furthermore, one end of the thrust conduit is fixedly connected with a thrust port of the thrust cylinder, the other end of the thrust conduit is connected with the liquid cabin, and the middle part of the thrust conduit is fixedly connected with the power cylinder; one end of the pressure relief conduit is fixedly connected with a pressure relief port of the thrust cylinder, and the other end of the pressure relief conduit is connected with the liquid cabin; one end of the driven shaft is fixedly connected with the driven wheel, and the other end of the driven shaft is fixedly connected with the power cylinder; the driven shaft is connected with the driving wheel through a belt; an output shaft of the power-assisted motor is fixedly connected with the driving wheel; the power-assisted motor is respectively connected with the control key and the power structure through the conducting wire, the control key controls the power-assisted motor to be started, the driving shaft is driven to rotate, the driving shaft drives the driven wheel to rotate through the belt, the power cylinder is driven to move, the thick liquid inside the power cylinder is conveyed to the interior of the thrust cylinder along the thrust guide pipe, the support push rod is pushed to move, the storage push rod is driven to move, the cavity volume formed by the storage cabin and the storage push rod is reduced, and the purpose of injecting the bone cement stored in the storage structure is achieved.

Further, the force adjusting assembly comprises a first adjusting cylinder, a circulating device and a second adjusting cylinder.

Further, the driven wheel comprises a driven fixed wheel and a driven adjusting wheel; the driving wheel comprises a driving fixed wheel and a driving adjusting wheel.

Further, the control structure is arranged at the top of the power assisting shell; the driven fixed wheel is fixedly connected with the driven shaft; the driven regulating wheel is inserted with the driven shaft; the side surface of the driven adjusting wheel is connected with a second adjusting cylinder; the driving fixed wheel is fixedly connected with an output shaft of the power-assisted motor; the driving adjusting wheel is inserted with the driving fixing wheel; the side of the active adjusting wheel is connected with the first adjusting cylinder.

Further, the first adjusting cylinder and the second adjusting cylinder are connected through a circulating device; the first adjusting cylinder, the second adjusting cylinder and the circulating device are filled with viscous liquid.

Further, the first adjusting cylinder comprises a first adjusting cabin and a first adjusting push rod; the second adjusting cylinder comprises a second adjusting cabin and a second adjusting push rod.

Further, the first adjusting cabin is inserted with a first adjusting push rod; the second adjusting cabin is inserted with a second adjusting push rod; the first adjusting push rod is connected with the driving adjusting wheel through a bearing; the second adjusting push rod is rotatably connected with the driven adjusting wheel; a first export port is arranged at the top of the first adjusting cabin, and a first import port is arranged at the bottom of the first adjusting cabin; and a second export port is arranged at the top of the second adjusting cabin, and a second import port is arranged at the bottom of the second adjusting cabin.

Further, the circulating device comprises a speed regulating structure, a first circulating conduit and a second circulating conduit.

Further, one end of the first circulating conduit is connected with the second leading-in port, and the other end of the first circulating conduit is connected with the first leading-out port; one end of the second circulating conduit is connected with the first leading-in port, the other end of the second circulating conduit is connected with the second leading-out port, and the middle part of the second circulating conduit is connected with the speed regulating structure; the first circulation conduit, the second inlet port and the first outlet port have the same inner diameter; the second circulation conduit, the first inlet port and the second outlet port have the same inner diameter.

Furthermore, the speed regulation structure comprises a regulation cylinder and a regulation motor.

Further, the adjusting cylinder is connected with the middle part of the second circulating conduit; the adjusting cylinder is connected with an adjusting motor; the adjusting motor is respectively connected with the control structure and the power supply structure through leads; the control structure controls the adjusting motor to start, the adjusting motor drives the adjusting cylinder to move, the thick liquid in the adjusting cylinder flows, the first adjusting push rod and the second adjusting push rod are driven to move, the driving adjusting wheel and the driven adjusting wheel are driven to move, the effective diameters of the driving wheel and the driven wheel are changed, the transmission ratio is changed, and the purpose of adjusting the rotating speed of the driven shaft is achieved.

The invention has the beneficial effects that: the power assisting device is arranged to reduce the hand strength loss of a doctor; the power assisting device is separated from the injection assembly, so that the weight of the part held by a doctor is reduced, and the burden of the doctor is reduced; the thrust of the injection is flexibly adjusted, and the requirements of various patients are met.

The using method comprises the following steps:

1. filling bone cement into the interior of the storage structure;

2. placing the storage structure on a thrust support, and installing a thrust cover plate;

3. the power supply is communicated, and the injection needle is aligned to the target position;

4. pressing a control key to start the pushing structure to inject the bone cement into a target position;

5. and adjusting the thrust by using a control structure.

Drawings

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

FIG. 2 is a schematic view of the injection assembly of the present invention;

FIG. 3 is a cross-sectional view of the injection assembly of the present invention;

FIG. 4 is a schematic view of a storage compartment of the present invention;

FIG. 5 is a schematic view of a storage pushrod of the present invention;

FIG. 6 is a schematic view of a pusher rod of the stand of the present invention;

FIG. 7 is a schematic view of an injection stent of the present invention;

FIG. 8 is a schematic view of a booster of the present invention;

FIG. 9 is a schematic view of the internal structure of the booster of the present invention;

FIG. 10 is a side view of the internal structure of the booster of the present invention;

FIG. 11 is a schematic view of a pushing structure of the present invention;

FIG. 12 is a schematic view of a force adjustment assembly of the present invention;

in the figures, 1, the injection assembly; 11. a storage structure; 111. a storage compartment; 1111. an injection needle; 1112. a storage housing; 1113. positioning a plate; 112. storing the push rod; 1121. a rubber plug; 1122. injecting a push column; 1123. a stress plate; 12. a thrust structure; 121. a thrust cover plate; 122. a thrust bracket; 1221. a grip; 1222. a control key; 1223. a thrust cylinder; 123. an injection stent; 1231. a support; 1232. a bracket mounting seat; 1233. a bracket locking plate; 124. a bracket push rod; 1241. a thrust plate; 1242. moving the push post; 1243. a thrust cylinder partition; 2. a conductive structure; 21. a thrust conduit; 22. a force-releasing conduit; 23. a wire; 3. a booster device; 31. a power assist housing; 32. a power cylinder; 33. a driven wheel; 331. a driven fixed wheel; 332. a driven regulating wheel; 34. a driving wheel; 341. a driving fixed wheel; 342. an active adjustment wheel; 35. a first adjusting cylinder; 36. a circulation device; 361. a speed regulating structure; 3611. an adjusting cylinder; 3612. adjusting the motor; 362. a first circulation conduit; 363. a second circulation conduit; 37. a second adjusting cylinder; 38. a control structure; 39. a liquid compartment; 4. a power supply structure.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below by specific embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and other advantages and effects of the present invention can be easily understood by those skilled in the art from the disclosure of the present specification. The present invention can be implemented or applied by other different specific embodiments, and the features in the following embodiments and embodiments can be combined with each other without conflict, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

Example 1

Referring to fig. 1, a speed-regulating bone cement filling apparatus according to the present embodiment includes an injection assembly 1, a conducting structure 2, a power assisting device 3 and a power supply structure 4; the power assisting device 3 is connected with the power supply structure 4; the injection assembly 1 comprises a storage structure and a thrust structure 12; the storage structure is arranged inside the thrust structure 12 and connected with the thrust structure 12; one end of the conduction structure 2 is connected with the thrust structure 12, and the other end is connected with the power assisting device 3; the power assisting device 3 is connected with the power supply structure 4; the power assisting device 3 comprises a power assisting shell 31, a pushing structure, a control structure 38 and a force adjusting assembly for adjusting pushing force; the pushing structure and the force adjusting component are arranged inside the power assisting shell 31; the control structure 38 is disposed on top of the power assist housing 31.

The storage structure comprises a storage cabin and a storage push rod, and bone cement is stored in a cavity between the storage cabin and the storage push rod.

The storage push rod is arranged inside the storage cabin and is inserted into the storage cabin, and the storage push rod can slide inside the storage cabin.

Storage compartment 111 includes needle 1111, storage housing 1112, and alignment plate 1113.

One end of the storage shell is fixedly connected with the syringe needle 1111, and the other end is fixedly connected with the positioning plate 1113; the diameter of the injection needle 1111 is smaller than the storage housing diameter.

The storage pushing rod 112 includes a rubber stopper 1121, an injection pushing rod 1122, and a force-bearing plate 1123.

One end of the injection push column 1122 is fixedly connected with the rubber plug 1121, and the other end is fixedly connected with the stress plate 1123; the rubber plug 1121 is inserted into the inner side of the storage shell; the diameter of the injection push rod is smaller than that of the rubber plug 1121.

The thrust structure 12 includes a thrust cover 121, a thrust bracket 1221231, and a bracket push rod 124.

The thrust cover plate 121 and the thrust bracket 1221231 are locked through bolts; the bracket push rod 124 is inserted with the thrust bracket 1221231; the storage structure is disposed in the space between thrust cover 121 and thrust bracket 1221231.

The thrust bracket 1221231 includes a grip 1221, control buttons 1222, thrust cylinders 1223, and storage shelves.

One end of the thrust cylinder 1223 is fixedly connected with the storage rack, and the bottom of the thrust cylinder 1223 is fixedly connected with the handle 1221; the control key 1222 is inserted into the grip 1221; the thrust cylinder 1223 is inserted with the bracket push rod 124; the thrust cylinder 1223 is connected to the conducting structure 2.

The control key 1222 is connected to the power supply module and the power assisting device 3 through the wires 23, and the control key 1222 controls the power assisting device 3 to start, so as to drive the support push rod 124 to move, thereby pushing the storage push rod, reducing the volume of the cavity formed by the storage compartment and the storage push rod, and achieving the purpose of injecting the bone cement stored in the storage structure.

The bracket pushrod 124 includes a thrust plate 1241, a movable push post 1242, and a thrust cylinder spacer 1243.

One end of a movable push column 1242 is fixedly connected with a thrust plate 1241, and the other end is fixedly connected with a thrust cylinder partition 1243; the movable push column 1242 is inserted into the thrust cylinder 1223; the thrust cylinder clapboard 1243 is arranged inside the thrust cylinder 1223, the thrust cylinder 1223 is divided into two parts with variable volumes, and when the volumes of the two parts of cavities are changed, the thrust cylinder clapboard 1243 is driven to move, so that the support push rod 124 is driven to move, the storage push rod is driven to move, the volumes of the cavities formed by the storage cabin and the storage push rod are reduced, and the purpose of injecting the bone cement stored in the storage structure is achieved.

The conducting structure 2 comprises a thrust conduit 21 and a blow-off conduit 22.

One end of the thrust conduit 21 is fixedly connected with a thrust port of the thrust cylinder 1223, and the other end is connected with the power assisting device 3; one end of the force-releasing conduit 22 is fixedly connected with a force-releasing port of the thrust cylinder 1223, and the other end is connected with the power assisting device 3; the thrust guide 21 has the same inner diameter as the thrust port; the internal diameter of the vent conduit 22 is equal to the internal diameter of the vent port.

The power assisting shell 31 is arranged outside the pushing structure and wraps the pushing structure inside. The pushing structure comprises a power cylinder 32, a driven wheel 33, a driven shaft, a driving wheel 34, an assisting motor and a liquid cabin 39.

The liquid bin, the thrust conduit 21, the pressure relief conduit 22, the power cylinder 32 and the thrust cylinder 1223 are filled with viscous liquid.

The force adjusting assembly comprises a first adjusting cylinder 353611, a circulating device 36 and a second adjusting cylinder 373611.

The driven wheel 33 comprises a driven fixed wheel 331 and a driven adjusting wheel 332; the driving wheel 34 includes a driving fixed wheel 341 and a driving adjustable wheel 342.

The control structure 38 is disposed on top of the power assist housing 31; the driven fixed wheel 331 is fixedly connected with the driven shaft; the driven regulating wheel 332 is inserted into the driven shaft; the side surface of the driven adjusting wheel 332 is connected with a second adjusting cylinder 373611; the driving fixed wheel 341 is fixedly connected with an output shaft of the power-assisted motor; the driving regulating wheel 342 is inserted with the driving fixed wheel 341; the side of the active adjustment wheel 342 is connected to a first adjustment cylinder 353611.

The circulation device 36 includes a speed regulating structure 361, a first circulation duct 362 and a second circulation duct 363. The speed control structure 361 includes a control cylinder 3611 and a control motor 3612.

Example 2

As shown in fig. 2 to 7, the following technical features are specifically set for the present embodiment on the basis of embodiment 1:

the injection needle 1111 is of a circular tubular structure; the storage shell is of a circular cylindrical structure; the positioning plate 1113 is a regular sheet structure with a circular through hole in the middle.

The rubber stopper 1121 has a cylindrical structure; the injection plunger 1122 has a circular cylindrical structure; the force bearing plate 1123 is a circular plate-like structure.

The thrust cover plate 121 is a semicircular cylindrical structure, and two ends of the thrust cover plate are respectively provided with a first mounting plate connected with the thrust bracket 1221231.

The thrust cylinder 1223 is a hollow circular columnar structure, and a through hole for inserting the support push rod 124 is formed in one side connected with the storage rack; the bottom of the thrust cylinder 1223 near one side of the storage rack is provided with a force release port; the thrust cylinder 1223 is provided with a thrust port on the side remote from the storage rack.

Thrust structure 12 also includes an injection cradle 1231231.

Injection rack 1231231 includes a rack 1231, a rack mount 1232, and a rack lock plate 1233.

The support mounting seat 1232 is arranged at the bottom of the storage rack, and the support mounting seat 1232 is fixedly connected with the storage rack; the bracket 1231 is arranged in a gap between the bracket mounting seat 1232 and the bracket locking plate 1233; the bracket mounting base 1232 and the bracket locking plate 1233 are locked through bolts, so that the bracket 1231 is firmly fixed.

Example 3

As shown in fig. 8 to 11, the following technical features are specifically set for the present embodiment on the basis of embodiment 2:

one end of the thrust conduit 21 is fixedly connected with a thrust port of the thrust cylinder 1223, the other end of the thrust conduit is connected with the liquid cabin 39, and the middle part of the thrust conduit is fixedly connected with the power cylinder 32; one end of the pressure relief conduit 22 is fixedly connected with the pressure relief port of the thrust cylinder 1223, and the other end is connected with the liquid cabin 39; one end of the driven shaft is fixedly connected with the driven wheel 33, and the other end of the driven shaft is fixedly connected with the power cylinder 32; the driven shaft is connected with the driving wheel 34 through a belt; the output shaft of the booster motor is fixedly connected with the driving wheel 34; the power-assisted motor is respectively connected with the control key 1222 and the power structure 4 through the conducting wire 23, the control key 1222 controls the power-assisted motor to start, the driving shaft is driven to rotate, the driving shaft drives the driven wheel 33 to rotate through the belt, the power cylinder 32 is driven to move, the viscous liquid inside the power cylinder is conveyed to the interior of the thrust cylinder 1223 along the thrust guide pipe 21, the support push rod 124 is pushed to move, the storage push rod is driven to move, the volume of a cavity formed by the storage cabin and the storage push rod is reduced, and the purpose of injecting the bone cement stored in the storage structure is achieved.

Example 4

As shown in fig. 8 to 12, the following technical features are specifically set on the basis of embodiment 3 for this embodiment:

the first adjusting cylinder 353611 is connected with the second adjusting cylinder 373611 through the circulating device 36; the first and second cylinders 353611, 373611 and the circulating device 36 are filled with viscous liquid.

The first adjustment cylinder 353611 includes a first adjustment compartment and a first adjustment push rod; the second adjustment cylinder 373611 includes a second adjustment cab and a second adjustment push rod.

The first adjusting cabin is inserted with the first adjusting push rod; the second adjusting cabin is inserted with a second adjusting push rod; the first adjusting push rod is connected with the driving adjusting wheel 342 through a bearing; the second adjusting push rod is rotatably connected with the driven adjusting wheel 332; the top of the first adjusting cabin is provided with a first outlet port, and the bottom of the first adjusting cabin is provided with a first inlet port; the top of the second adjusting cabin is provided with a second outlet port, and the bottom of the second adjusting cabin is provided with a second inlet port

One end of the first circulation conduit 362 is connected to the second introduction port, and the other end is connected to the first discharge port; one end of the second circulation conduit 363 is connected with the first lead-in port, the other end is connected with the second lead-out port, and the middle part is connected with the speed regulating structure 361; the first circulation conduit 362, the second introduction port, and the first discharge port have the same inner diameter; the second circulation conduit 363, the first inlet port, and the second outlet port have the same inner diameter.

The adjusting cylinder 3611 is connected with the middle part of the second circulation conduit 363; the adjusting cylinder 3611 is connected with an adjusting motor 3612; the adjusting motor 3612 is respectively connected with the control structure 38 and the power supply structure 4 through wires 23; the control structure 38 controls the adjustment motor 3612 to start, and the adjustment motor 3612 drives the adjustment cylinder 3611 to move, so that the viscous liquid inside flows to drive the first adjustment push rod and the second adjustment push rod to move, and drive the driving adjustment wheel 342 and the driven adjustment wheel 332 to displace, and change the effective diameters of the driving wheel 34 and the driven wheel 33, thereby changing the transmission ratio and achieving the purpose of adjusting the rotation speed of the driven shaft.

The above description of the embodiments is only for the understanding of the present invention. It should be noted that modifications could be made to the invention without departing from the principle of the invention, which would also fall within the scope of the claims of the invention.

Claims

1. A speed-regulating bone cement filling apparatus comprises an injection assembly, a conduction structure, a power assisting device and a power supply structure; the power assisting device is characterized in that the power assisting device is connected with a power supply structure; the injection assembly comprises a storage structure and a thrust structure; the storage structure is arranged inside the thrust structure and connected with the thrust structure; one end of the conduction structure is connected with the thrust structure, and the other end of the conduction structure is connected with the power assisting device; the power assisting device is connected with the power supply structure; the power assisting device comprises a power assisting shell, a pushing structure, a control structure and a force adjusting assembly for adjusting pushing force; the pushing structure and the force adjusting assembly are arranged inside the power assisting shell; the control structure is arranged at the top of the power assisting shell.

2. The apparatus of claim 1, wherein the storage structure comprises a storage compartment and a storage push rod; the storage push rod is arranged in the storage cabin and is inserted into the storage cabin; the thrust structure comprises a thrust cover plate, a thrust bracket and a bracket push rod; the thrust cover plate and the thrust support are locked through a bolt; the bracket push rod is inserted with the thrust bracket; the storage structure is arranged in a gap between the thrust cover plate and the thrust support.

3. The adjustable speed bone cement filling apparatus according to claim 2, wherein said thrust bracket comprises a grip, a control key, a thrust cylinder and a storage shelf; one end of the thrust cylinder is fixedly connected with the storage rack, and the bottom of the thrust cylinder is fixedly connected with the handle; the control key is inserted into the handle; the thrust cylinder is inserted with the support push rod; the thrust cylinder is connected with the conduction structure; a through hole for being inserted with the support push rod is formed in one side, connected with the storage rack, of the thrust cylinder; the bottom of one side, close to the storage rack, of the thrust cylinder is provided with a force release port; a thrust port is formed in one side, away from the storage rack, of the thrust cylinder; the control key is respectively connected with the power supply assembly and the power assisting device through wires; the support push rod comprises a thrust plate, a movable push column and a thrust cylinder clapboard; one end of the movable push column is fixedly connected with the thrust plate, and the other end of the movable push column is fixedly connected with the thrust cylinder partition plate; the movable push column is inserted with the push cylinder.

4. The regulated bone cement filling apparatus according to claim 3, wherein said thrust structure further comprises an injection scaffold; the injection bracket comprises a bracket, a bracket mounting seat and a bracket locking plate; the support mounting seat is arranged at the bottom of the storage rack and is fixedly connected with the storage rack; the bracket is arranged in a gap between the bracket mounting seat and the bracket locking plate; the support mounting seat and the support locking plate are locked through bolts.

5. The regulated bone cement filling apparatus according to claim 3 or 4, wherein said conducting structure comprises a thrust conduit and a leakage conduit; one end of the thrust conduit is fixedly connected with a thrust port of the thrust cylinder, and the other end of the thrust conduit is connected with the power assisting device; one end of the pressure relief conduit is fixedly connected with a pressure relief port of the thrust cylinder, and the other end of the pressure relief conduit is connected with the power assisting device; the inner diameters of the thrust conduit and the thrust port are equal; the inner diameter of the pressure relief conduit is equal to that of the pressure relief port.

6. The adjustable-speed bone cement filling apparatus according to claim 5, wherein the pushing structure comprises a power cylinder, a driven wheel, a driven shaft, a driving wheel, a power-assisted motor and a liquid cabin; the liquid bin, the thrust guide pipe, the force release guide pipe, the power cylinder and the thrust cylinder are filled with viscous liquid; one end of the thrust guide pipe is fixedly connected with a thrust port of the thrust cylinder, the other end of the thrust guide pipe is connected with the liquid cabin, and the middle part of the thrust guide pipe is fixedly connected with the power cylinder; one end of the pressure relief conduit is fixedly connected with a pressure relief port of the thrust cylinder, and the other end of the pressure relief conduit is connected with the liquid cabin; one end of the driven shaft is fixedly connected with the driven wheel, and the other end of the driven shaft is fixedly connected with the power cylinder; the driven shaft is connected with the driving wheel through a belt; an output shaft of the power-assisted motor is fixedly connected with the driving wheel; the power-assisted motor is respectively connected with the control key and the power supply structure through leads.

7. The adjustable speed bone cement filling apparatus of claim 6, wherein the force adjustment assembly comprises a first adjustment cylinder, a circulation device, a second adjustment cylinder; the driven wheel comprises a driven fixed wheel and a driven adjusting wheel; the driving wheel comprises a driving fixed wheel and a driving adjusting wheel; the control structure is arranged at the top of the power assisting shell; the driven fixed wheel is fixedly connected with the driven shaft; the driven regulating wheel is inserted with the driven shaft; the side surface of the driven adjusting wheel is connected with a second adjusting cylinder; the driving fixed wheel is fixedly connected with an output shaft of the power-assisted motor; the driving adjusting wheel is inserted with the driving fixing wheel; the side surface of the driving adjusting wheel is connected with a first adjusting cylinder; the first adjusting cylinder and the second adjusting cylinder are connected through a circulating device; the first adjusting cylinder, the second adjusting cylinder and the circulating device are filled with viscous liquid.

8. The adjustable speed bone cement filling apparatus according to claim 7, wherein said first adjustment cylinder comprises a first adjustment capsule and a first adjustment push rod; the second adjusting cylinder comprises a second adjusting cabin and a second adjusting push rod; the first adjusting cabin is inserted with the first adjusting push rod; the second adjusting cabin is inserted with a second adjusting push rod; the first adjusting push rod is connected with the driving adjusting wheel through a bearing; the second adjusting push rod is rotatably connected with the driven adjusting wheel; a first export port is arranged at the top of the first adjusting cabin, and a first import port is arranged at the bottom of the first adjusting cabin; and a second export port is arranged at the top of the second adjusting cabin, and a second import port is arranged at the bottom of the second adjusting cabin.

9. The adjustable speed bone cement filling apparatus according to claim 8, wherein said circulation device comprises a speed adjusting structure, a first circulation conduit and a second circulation conduit; one end of the first circulating conduit is connected with the second leading-in port, and the other end of the first circulating conduit is connected with the first leading-out port; one end of the second circulating conduit is connected with the first leading-in port, the other end of the second circulating conduit is connected with the second leading-out port, and the middle part of the second circulating conduit is connected with the speed regulating structure; the first circulation conduit, the second inlet port and the first outlet port have the same inner diameter; the second circulation conduit, the first inlet port and the second outlet port have the same inner diameter.

10. The adjustable speed bone cement filling apparatus according to claim 9, wherein the adjustable speed structure comprises an adjusting cylinder and an adjusting motor; the adjusting cylinder is connected with the middle part of the second circulating conduit; the adjusting cylinder is connected with an adjusting motor; the adjusting motor is respectively connected with the control structure and the power supply structure through leads.