CN114010299A - Pedal speed-regulating type bone cement filling instrument - Google Patents

Abstract

The invention discloses a pedal 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 arranged on the transmission 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 and a force adjusting assembly; the pushing structure and the force adjusting assembly are arranged in the power assisting shell; the pushing structure is connected with the force adjusting assembly; the force adjusting assembly comprises a first adjusting cylinder, a circulating device and a second adjusting cylinder; and the circulating device is respectively connected with the first adjusting cylinder and the second adjusting cylinder.

Description

Pedal speed-regulating type bone cement filling instrument

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a pedal 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. In order to ensure the later recovery of the patient, the injection wound of the bone cement is small, the sight of a doctor is easily shielded by a filling instrument, so that the bone cement is deviated in injection, and the condition of excessive or less injection amount of the bone cement can also occur.

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

Disclosure of Invention

To overcome the problems noted in the background, the present invention provides a foot-operated, rate-regulated bone cement filling apparatus.

A pedal 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 and a force adjusting assembly; the pushing structure and the force adjusting assembly are arranged in the power assisting shell; the pushing structure is connected with the force adjusting assembly; the force adjusting assembly comprises a first adjusting cylinder, a circulating device and a second adjusting cylinder; and the circulating device is respectively connected with the first adjusting cylinder and the second adjusting cylinder.

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.

Further, the injection assembly also comprises a monitoring assembly for assisting a doctor to inject the bone cement and a measuring structure for measuring the injection amount of the bone cement.

Further, the monitoring assembly is connected with the power supply structure through a wire; the monitoring assembly is arranged on the thrust structure and connected with the thrust structure; the measuring structure is arranged on the thrust structure and connected with the thrust structure

Further, the monitoring assembly comprises a camera shooting structure and a display structure.

Further, the camera shooting structure comprises an image collector and a light source structure; the image collector and the light source structure are both arranged on one side of the thrust cover plate close to the injection needle.

Further, the display structure comprises a display bracket and a display; the display bracket is arranged at the top of the thrust cylinder and is fixedly connected with the thrust cylinder; the display support is rotatably connected with the display and locked by a bolt, so that the angle adjustment of the display is realized.

Furthermore, the image collector, the light source structure, the display and the power supply structure are connected with each other through a wire, the display is started, video information collected by the image collector can be received, and a doctor can conveniently find the injection position of the bone cement.

Furthermore, the measuring structure comprises a measuring shell, an inductor, a measuring switch, a measuring roller, a measuring bracket, a measuring base and a pressure spring.

Further, the measuring shell and the thrust support are locked through a bolt; the measuring switch is arranged at the top of the measuring shell and is fixedly connected with the measuring shell; the measuring base is arranged at the top of the inner side of the measuring shell and is fixedly connected with the measuring shell; the measuring bracket is rotationally connected with the measuring base; one end of the pressure spring is fixedly connected with the measuring bracket, and the other end of the pressure spring is fixedly connected with the measuring shell; the measuring roller is rotationally connected with the measuring bracket; the sensor is arranged in the measuring shell and is fixedly connected with the measuring shell; the inductor is connected with the display through a lead.

Furthermore, the measuring shell is of a semicircular cylindrical structure, and two ends of the measuring shell are respectively provided with a second mounting plate which is used for being connected with the thrust support; the measuring bracket is of a columnar structure.

Further, after the measuring structure is installed on the thrust support, the measuring roller abuts against the movable pushing column and rotates along with the movement of the movable pushing column, the sensor is started through the measuring switch, the sensor collects the moving distance of the movable pushing rod through the rotation of the measuring roller, the quantity of injected bone cement is calculated in real time, the data is fed back to the display, and the display displays the data in real time.

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, 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 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 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 leading-in port is arranged at the top of the first adjusting cabin; and a second leading-in port is arranged at the top of the second adjusting cabin, and a second leading-out port is arranged at the bottom of the second adjusting cabin.

Furthermore, the circulating device comprises a speed regulating cylinder, a first circulating conduit, a second circulating conduit, a speed regulating push rod, a pedal and a tension spring.

Furthermore, one end of the second circulating conduit is connected with the second outlet port, and the other end of the second circulating conduit is connected with the first inlet port; 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 speed regulating structure; the second circulation conduit, the second outlet port and the first inlet port have the same inner diameter; the first circulation conduit and the second introduction port have the same inner diameter.

Further, the adjusting cylinder is connected with a first circulating conduit; the adjusting cylinder is inserted with the speed-adjusting push rod; the speed regulation push rod is connected with the pedal in a sliding way; the pedal is rotationally connected with the power-assisted shell; one end of the tension spring is fixedly connected with the pedal, and the other end of the tension spring is fixedly connected with the power assisting shell; the pedal is stepped, the pedal pushes one end of the speed regulation push rod to enable the viscous liquid inside to flow, the first regulation push rod and the second regulation push rod are driven to move, the driving regulation wheel and the driven regulation 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 regulating 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; a pedal type force adjusting component is additionally arranged to adjust the thrust of injecting bone cement in real time; a monitoring component for assisting a doctor to inject bone cement is arranged, so that the sight range of the doctor is enlarged; the measurement structure for measuring the injection amount of the bone cement is arranged, and the injection condition of the bone cement is accurately fed back.

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 connected, and the monitoring assembly is used for aligning the injection needle to a target position;

4. starting a measuring structure, pressing a control key, starting a pushing structure, and injecting bone cement into a target position;

5. the thrust is controlled by applying the force adjusting assembly;

6. and stopping injection at proper time according to the feedback results of the monitoring assembly and the measuring 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 a monitoring assembly of the present invention;

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

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

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

FIG. 11 is a side view of the internal structure of the booster of the present invention;

FIG. 12 is a schematic view of a pushing structure of the present invention;

FIG. 13 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; 124. a bracket push rod; 1241. a thrust plate; 1242. moving the push post; 1243. a thrust cylinder partition; 13. a monitoring component; 131. a camera structure; 1311. an image collector; 1312. a light source structure; 132. a display structure; 14. a measurement structure; 141. a measurement housing; 142. a measurement switch; 143. measuring a roller; 144. a measuring support; 145. a measuring base; 146. a pressure spring; 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 cylinder; 362. a first circulation conduit; 363. a second circulation conduit; 364. a speed regulation push rod; 365. a pedal; 37. a second adjusting cylinder; 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 foot-operated speed-regulating bone cement filling apparatus according to the present embodiment comprises 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 and a force adjusting assembly; the pushing structure and the force adjusting component are arranged inside the power assisting shell 31; the pushing structure is connected with the force adjusting assembly; the force adjusting assembly comprises a first adjusting cylinder 35, a circulating device 36 and a second adjusting cylinder 37; the circulation device 36 is connected to the first and second adjustment cylinders 35 and 37, respectively.

The injection assembly 1 further comprises a monitoring assembly 13 for assisting the doctor in injecting the bone cement and a measuring structure 14 for measuring the injection amount of the bone cement; the monitoring assembly 13 is connected to the power supply structure 4 by a wire 23; the monitoring assembly 13 is arranged on the thrust structure 12 and is connected with the thrust structure 12; the measurement structure 14 is disposed on the thrust structure 12 and is coupled to the thrust structure 12.

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 plate 121, a thrust bracket 122, and a bracket push rod 124. The thrust cover plate 121 and the thrust bracket 122 are locked by bolts; the bracket push rod 124 is inserted with the thrust bracket 122; the storage structure is disposed in the space between the thrust cover plate 121 and the thrust bracket 122.

The thrust bracket 122 includes a grip 1221, control keys 1222, a thrust cylinder 1223, and a storage rack. 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 monitoring assembly 13 includes a camera structure 131 and a display structure 132. The camera structure 131 is disposed on a side of the push cover 121 adjacent to the needle 1111. The display structure 132 is disposed on top of the thrust cylinder 1223. The camera structure 131 and the display structure 132 are connected with each other through the lead 23, the display is started, and the video information collected by the image collector 1311 can be received, so that a doctor can conveniently find the injection position of the bone cement.

The measuring structure 14 includes a measuring housing 141, a sensor, a measuring switch 142, a measuring roller 143, a measuring bracket 144, a measuring base 145, and a pressure spring 146. The measuring shell 141 and the thrust bracket 122 are locked by bolts; the measurement switch 142 is disposed on the top of the measurement housing 141 and is fixedly connected to the measurement housing 141; the measuring base 145 is arranged on the top of the inner side of the measuring shell 141, and the measuring base 145 is fixedly connected with the measuring shell 141; the measuring bracket 144 is rotatably connected with the measuring base 145; one end of the pressure spring 146 is fixedly connected with the measuring bracket 144, and the other end is fixedly connected with the measuring shell 141; the measuring roller 143 is rotatably connected with the measuring bracket 144; the sensor is arranged inside the measuring shell 141 and fixedly connected with the measuring shell 141; the sensor is connected to the display by a wire 23.

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 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 power assisting device 3.

The booster 3 includes a booster housing 31 and a pushing structure. The power assisting shell 31 is arranged outside the pushing structure and wraps the pushing structure inside. The booster 3 further comprises a force adjusting assembly. The force regulating assembly is disposed inside the booster housing 31.

Example 2

As shown in fig. 2 to 8, 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 122.

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.

The camera structure 131 comprises an image collector 1311 and a light source structure 1312; the image collector 1311 and the light source structure 1312 are both disposed on a side of the thrust cover plate 121 close to the injection needle 1111. The display structure 132 includes a display stand and a display; the display bracket is arranged at the top of the thrust cylinder 1223 and is fixedly connected with the thrust cylinder 1223; the display bracket is rotatably connected with the display and locked by a bolt, so that the angle adjustment of the display is realized. The image collector 1311, the light source structure 1312, the display and the power supply structure 4 are connected with each other through the lead 23, the display is turned on, video information collected by the image collector 1311 can be received, and a doctor can conveniently find the injection position of the bone cement.

The measuring shell 141 is of a semicircular cylindrical structure, and two ends of the measuring shell are respectively provided with a second mounting plate which is used for being connected with the thrust bracket 122; the measurement mount 144 is a cylindrical structure.

After the measuring structure 14 is installed on the thrust bracket 122, the measuring roller 143 abuts against the movable push rod 1242 and rotates along with the movement of the movable push rod 1242, the sensor is started through the measuring switch 142, the sensor collects the movement distance of the movable push rod through the rotation of the measuring roller 143, so that the amount of injected bone cement is calculated in real time, the data is fed back to the display, and the display displays the data in real time.

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.

Example 3

As shown in fig. 3 to 12, the following technical features are specifically set on the basis of embodiment 2 for this embodiment:

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. 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. 13, the following technical features are specifically set on the basis of embodiment 2 for this embodiment:

the force adjusting assembly comprises a first adjusting cylinder 35, a circulating device 36 and a second adjusting cylinder 37.

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 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 the second adjusting cylinder 37; 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 the first adjustment cylinder 35.

The first adjusting cylinder 35 and the second adjusting cylinder 37 are connected through a circulating device 36; the first and second adjusting cylinders 35 and 37 and the circulating device 36 are filled with a viscous liquid.

The first adjusting cylinder 35 comprises a first adjusting cabin and a first adjusting push rod; the second adjusting cylinder 37 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 342 through a bearing; the second adjusting push rod is rotatably connected with the driven adjusting wheel 332; a first leading-in port is arranged at the top of the first adjusting cabin; the top of the second adjusting cabin is provided with a second leading-in port, and the bottom of the second adjusting cabin is provided with a second leading-out port.

The circulation device 36 includes a governor cylinder 361, a first circulation conduit 362, a second circulation conduit 363, a governor link 364, a pedal 365, and a tension spring.

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

The adjustment cylinder is connected to a first circulation conduit 362; the adjusting cylinder is inserted with a speed adjusting push rod 364; the speed regulating push rod 364 is slidably connected with the pedal 365; the pedal 365 is rotatably connected with the power shell 31; one end of the tension spring is fixedly connected with the pedal 365, and the other end of the tension spring is fixedly connected with the power assisting shell 31; when the pedal 365 is stepped down, the pedal 365 pushes one end of the speed regulation push rod 364 to enable the viscous liquid inside to flow, so as to drive the first regulation push rod and the second regulation push rod to move, drive the driving regulation wheel 342 and the driven regulation 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 regulating the rotating 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 (10)

1. A pedal 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 and a force adjusting assembly; the pushing structure and the force adjusting assembly are arranged in the power assisting shell; the pushing structure is connected with the force adjusting assembly; the force adjusting assembly comprises a first adjusting cylinder, a circulating device and a second adjusting cylinder; and the circulating device is respectively connected with the first adjusting cylinder and the second adjusting cylinder.

2. A foot-operated, rate-regulated bone cement filling apparatus as claimed in claim 1, wherein said 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 foot-operated, speed-regulated 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. A foot-operated speed-regulating bone cement filling apparatus according to claim 3, wherein said injection assembly further comprises a monitoring assembly for assisting a doctor in injecting bone cement and a measuring structure for measuring an injection amount of the bone cement; the monitoring assembly is connected with the power supply structure through a lead; the monitoring assembly is arranged on the thrust structure and connected with the thrust structure; the measuring structure is arranged on the thrust structure and connected with the thrust structure; the monitoring assembly comprises a camera shooting structure and a display structure; the camera shooting structure comprises an image collector and a light source structure; the image collector and the light source structure are both arranged on one side of the thrust cover plate close to the injection needle head; the display structure comprises a display bracket and a display; the display bracket is arranged at the top of the thrust cylinder and is fixedly connected with the thrust cylinder; the display bracket is rotationally connected with the display and locked by a bolt to realize the angle adjustment of the display; the image collector, the light source structure, the display and the power supply structure are connected with each other through wires.

5. The foot-operated, speed-regulated bone cement filling apparatus according to claim 4, wherein said measuring structure comprises a measuring housing, a sensor, a measuring switch, a measuring roller, a measuring bracket, a measuring base and a pressure spring; the measuring shell and the thrust support are locked through a bolt; the measuring switch is arranged at the top of the measuring shell and is fixedly connected with the measuring shell; the measuring base is arranged at the top of the inner side of the measuring shell and is fixedly connected with the measuring shell; the measuring bracket is rotationally connected with the measuring base; one end of the pressure spring is fixedly connected with the measuring bracket, and the other end of the pressure spring is fixedly connected with the measuring shell; the measuring roller is rotationally connected with the measuring bracket; the sensor is arranged in the measuring shell and is fixedly connected with the measuring shell; the inductor is connected with the display through a lead.

6. A pedal-operated, speed-regulated bone cement filling apparatus according to any one of claims 3 to 5, 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.

7. The foot-operated, speed-regulated bone cement filling apparatus according to claim 6, wherein said booster includes a booster housing and a pushing structure; the power-assisted shell is arranged outside the pushing structure and wraps the pushing structure; 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.

8. A foot-operated, speed-regulated bone cement filling apparatus as claimed in claim 7, wherein said driven wheel comprises a driven fixed wheel and a driven adjustable 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.

9. The foot-operated, speed-regulated bone cement filling apparatus according to claim 8, wherein said first adjustment cylinder comprises a first adjustment chamber 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 leading-in port is arranged at the top of the first adjusting cabin; and a second leading-in port is arranged at the top of the second adjusting cabin, and a second leading-out port is arranged at the bottom of the second adjusting cabin.

10. The foot-operated speed-regulating bone cement filling apparatus as claimed in claim 9, wherein the circulating means comprises a speed-regulating cylinder, a first circulating conduit, a second circulating conduit, a speed-regulating push rod, a pedal and a tension spring; one end of the second circulating conduit is connected with the second outlet port, and the other end of the second circulating conduit is connected with the first inlet port; 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 speed regulating structure; the second circulation conduit, the second outlet port and the first inlet port have the same inner diameter; the first circulation conduit and the second introduction port have the same inner diameter; the adjusting cylinder is connected with the first circulating conduit; the adjusting cylinder is inserted with the speed-adjusting push rod; the speed regulation push rod is connected with the pedal in a sliding way; the pedal is rotationally connected with the power-assisted shell; one end of the tension spring is fixedly connected with the pedal, and the other end of the tension spring is fixedly connected with the power assisting shell.

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