CN112603519A - Push injection stirring device - Google Patents
Push injection stirring device Download PDFInfo
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- CN112603519A CN112603519A CN202011460890.6A CN202011460890A CN112603519A CN 112603519 A CN112603519 A CN 112603519A CN 202011460890 A CN202011460890 A CN 202011460890A CN 112603519 A CN112603519 A CN 112603519A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8802—Equipment for handling bone cement or other fluid fillers
- A61B17/8805—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7094—Solid vertebral fillers; devices for inserting such fillers
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8802—Equipment for handling bone cement or other fluid fillers
- A61B17/8805—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it
- A61B17/8825—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it characterised by syringe details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/50—Movable or transportable mixing devices or plants
- B01F33/501—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use
- B01F33/5011—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use portable during use, e.g. hand-held
- B01F33/50112—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use portable during use, e.g. hand-held of the syringe or cartridge type
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8802—Equipment for handling bone cement or other fluid fillers
- A61B17/8833—Osteosynthesis tools specially adapted for handling bone cement or fluid fillers; Means for supplying bone cement or fluid fillers to introducing tools, e.g. cartridge handling means
- A61B2017/8838—Osteosynthesis tools specially adapted for handling bone cement or fluid fillers; Means for supplying bone cement or fluid fillers to introducing tools, e.g. cartridge handling means for mixing bone cement or fluid fillers
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- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Neurology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The invention discloses a push injection stirring device, which comprises: the cavity comprises a stirring cavity with stirring blades and an injection tube communicated with the stirring cavity; the transmission assembly comprises a lifting assembly and a stirring shaft, wherein the lifting assembly is driven by a motor, and the stirring shaft is matched with the stirring blades to complete stirring; and the injection piece is driven by the lifting assembly and is used for injecting the contents in the stirring cavity into the injection tube and then separating out an injection piston to inject into the injection tube. The bone cement stirring and injection device respectively performs the functions of stirring and injecting bone cement through the forward and reverse rotation control of the motor, and can complete the functions of stirring and injecting without manual operation.
Description
Technical Field
The invention relates to the field of mechanical structures, in particular to a push injection stirring device.
Background
In the operation process is reinforceed to traditional centrum, need medical staff to mix the stirring to bone cement alone to manual injection human focus point position, complex operation, the irritative gas that produces in the bone cement mixing process is harmful to human health moreover.
In addition, the bone cement needs a larger cross-section space in the stirring process, so that the bone cement is stirred and mixed fully. When injecting to the focus point, a smaller section is needed, and the bone cement injection precision is ensured. Therefore, the mixing and injection of the bone cement are performed in cavities of different cross-sections.
The stirring device is mainly stirred bone cement through stirring motor control blade to current pushing, and in the bone cement that its back will stir shifts the injection tube, operates the completion injection via the manual work again. However, this solution has the following problems:
1. after the bone cement is stirred, the bone cement needs to be transferred into the injection tube through the quick connector;
2. the proposal can only realize the stirring of the bone cement, and the injection still needs manual operation to be completed.
Disclosure of Invention
The purpose of the invention is as follows: aiming at the defects, the invention provides the injection stirring device, which can respectively perform stirring and injection functions only by controlling the forward and reverse rotation of one motor without manual operation.
The technical scheme is as follows:
a bolus stirring device, comprising:
the cavity comprises a stirring cavity with stirring blades and an injection tube communicated with the stirring cavity;
the transmission assembly comprises a lifting assembly and a stirring shaft, wherein the lifting assembly is driven by a motor, and the stirring shaft is matched with the stirring blades to complete stirring;
and the injection piece is driven by the lifting assembly and is used for injecting the contents in the stirring cavity into the injection tube and then separating out an injection piston to inject into the injection tube.
The lifting assembly and the stirring shaft are controlled and driven by a motor to rotate forwards and backwards.
The motor controls the lifting assembly and the stirring shaft through a driving wheel, and the driving wheel comprises an outer ratchet wheel and an inner ratchet wheel which is coaxial and opposite to the outer ratchet wheel and is arranged in the outer ratchet wheel; the lifting assembly comprises a rotating part engaged with the outer ratchet wheel through a pawl and a lifting part lifted along with the rotation of the rotating part; the stirring shaft is meshed with the inner ratchet wheel through a pawl.
The rotating part is the outer sleeve, the lift portion is for sliding setting is in inner skleeve in the outer sleeve, the outer sleeve with realize sliding connection through sliding tray and slider between the inner skleeve.
The stirring shaft is arranged in the inner sleeve.
The upper end surface of the injection part is fixedly connected with the stirring blade and is in matched connection with the stirring shaft; the injection piston is arranged at the upper end of the lifting component.
The injection piston is characterized in that a limiting hole is formed in the side wall of the injection piston, the injection part is fixed with a limiting block and a pressing block matched with the limiting block through a spring, and the pressing block is matched with the limiting block to realize that the limiting block compression spring enters and exits the limiting hole after being pressed by the upper end face of the stirring cavity.
The front end of the limiting block is provided with an inclined plane which inclines inwards and downwards at the position below the pressing block, and the lower end of the pressing block is matched with the inclined plane.
The front end of the limiting block is provided with an inclined plane or a vertical plane which inclines inwards and downwards at the position below the pressing block, the lower end of the pressing block is correspondingly provided with an inclined plane, and the pressing block is matched with the front end of the limiting block through the inclined plane at the lower end of the pressing block.
And the middle part of the pressing block is provided with a limiting pin which extends outwards along the transverse direction and is used for limiting the position of the pressing block.
The stirring blade is obliquely arranged, one end of the stirring blade is fixed at the edge of one side of the upper end face of the injection piece, and the stirring blade is provided with an inner hole for the injection piston to pass through.
The end of the stirring shaft is a square shaft, a square hole corresponding to the square shaft at the upper end of the stirring shaft is formed in the lower end face of the injection piston, and the square hole and the square shaft are matched with each other to realize torque transmission.
Sealing rings are arranged between the injection piece and the stirring cavity and between the injection piston and the injection piece.
And the edge of the upper end surface of the injection piston is provided with 1-2 mm of leakage-proof rubber outwards along the radial direction.
A shell is arranged outside the transmission assembly, and the stirring cavity and the shell are installed in a matched mode through a buckle.
The stirring cavity is provided with a mounting hole, and the injection tube is fixedly mounted on the stirring cavity; and disassembling the injection tube, and injecting the stirred material into the stirring cavity through the mounting hole.
The injection stirring device is connected with the mechanical arm and controls the motor to start and stop through the mechanical arm.
Has the advantages that: the push injection stirring device provided by the invention realizes one-key push injection after stirring is finished by controlling a separable push injection piece by using the motor, and replaces manual operation. The injection device can be used in the field of daily stirring and injection, particularly in the medical field with higher requirements, firstly, the whole-process sterile operation is realized, and secondly, when the injection device is used for stirring and injecting bone cement and other easily dried substances, the injection of the bone cement in the optimal state can be ensured. Meanwhile, the invention only needs to control the positive and negative rotation of one motor to respectively realize the functions of stirring and injecting the bone cement, thereby not only having simple structure, but also greatly reducing the weight of the device and relieving the bearing pressure of the mechanical arm in the automatic operation.
Drawings
Fig. 1 is a schematic structural diagram of a bolus stirring device of the present invention.
Fig. 2 is a schematic view of the internal structure of the bolus stirring device of the present invention.
FIG. 3 is a cross-sectional view of a bolus stirring device of the invention.
Fig. 4 is an exploded view of the drive assembly of the present invention.
Fig. 5 is a view showing a structure of a driven gear.
Fig. 6 is a partial schematic view of a drive assembly.
FIG. 7 is a schematic view of a stir chamber.
Fig. 8(a) is a schematic diagram of the structure of the bolus piston moving to the end of the stirring cavity.
Fig. 8(b) is a schematic structural view of a separated injection piston pushing in the syringe.
Fig. 9 is a schematic view of the tilt angle.
Wherein, 1 is a body, 2 is a stirring cavity, 3 is an injection tube, 4 is an injector, and 5 is an injection stirring component;
11 is a driving component, 111 is a driving motor, and 112 is a driving gear;
12 is a transmission component, 121 is a driven gear, 1211 is an engaging gear, 1212 is an inner ratchet wheel, 1213 is an outer ratchet wheel, 1214 is an upper mounting part;
122 is a stirring pawl, 123 is a stirring shaft, 124 is a pushing injection pawl, 125 is an outer sleeve, 126 is an inner sleeve, and 127 is a nut;
21 is a stirring cavity;
the device comprises an injection piston 51, a stirring blade 52, a contact block 53, a push injection piston 54, a spring 55 and a stop plate 56.
Detailed Description
The invention is further elucidated with reference to the drawings and the embodiments.
Fig. 1 is a schematic structural diagram of a bolus stirring device of the present invention. As shown in fig. 1, the injection stirring device of the present invention comprises a body 1 and a consumable part, wherein the consumable part comprises a stirring cavity 2, an injection tube 3 detachably mounted at the upper end of the stirring cavity 2 and communicated with the stirring cavity, and an injector 4 at the end of the injection tube 3; be provided with the buckle of mutually supporting with 2 lower extremes of stirring chamber of consumptive material part on body 1, before the use, install the body 1 with the division board on, the centre is kept apart with aseptic bag, later installs the consumptive material part above body 1 through the buckle mode. The injection stirring device can be fixed on a mechanical arm, the motor of the injection stirring device can be controlled to start and stop through the mechanical arm, and the injection stirring device can also be fixed near an operating table.
As shown in fig. 2 and 3, the body 1 includes a housing, and a driving assembly 11 and a transmission assembly 12 mounted in the housing. Fig. 4 is an exploded view of the driving assembly of the present invention, and as shown in fig. 4, the driving assembly 11 includes a driving motor 111 and a driving gear 112 mounted on a motor shaft of the driving motor 111; the transmission assembly 12 includes a driven gear 121 engaged with the driving gear 112, the driven gear 121 includes an engaging gear 1211 engaged with the driving gear 112, an outer ratchet 1213 coaxial with the engaging gear 1211 is fixedly mounted on the engaging gear 1211, an inner ratchet 1212 coaxial with and opposite to the outer ratchet 1213 is arranged in the outer ratchet 1213, and an upper mounting portion 1214 is fixedly mounted above the outer ratchet 1213, as shown in the figure.
As shown in fig. 7, a nut 127 is fixedly mounted at the middle position of the upper end surface of the body 1, a thread opposite to the external ratchet 1213 is arranged in the nut 127, an internal sleeve 126 is arranged on the nut 127 through thread fit, an external sleeve 125 is sleeved outside the internal sleeve 126, and the length of the internal sleeve 126 is greater than that of the external sleeve 125; a sliding groove (not shown) is axially formed in the inner side wall of the outer sleeve 125, a sliding block corresponding to the sliding groove is axially formed in the outer side wall of the lower end of the inner sleeve 126, and the inner sleeve 126 is arranged in the outer sleeve 125 through the sliding block and the sliding groove in a matching manner and can slide up and down in the outer sleeve 125. The lower end of outer sleeve 125 engages with outer ratchet 1213 on driven gear 121 via bolus pawl 124, fig. 6. In the present invention, the lower end of outer sleeve 125 is mounted at a lower position inside body 1 through a bearing fixedly mounted above driven gear 121.
As shown in fig. 4, a stirring shaft 123 is arranged in the inner sleeve 126, the lower end of the stirring shaft 123 is engaged with an inner ratchet wheel 1212 on the driven gear 121 through a stirring ratchet wheel 122, and the upper end of the stirring shaft 123 is designed as a square shaft; the length of the stirring shaft 123 is greater than the length of the inner sleeve 126. Due to the unidirectional nature of the ratchet motion, agitator shaft 123, which is engaged with inner ratchet 1212 by means of agitator pawl 122, is rotatable in one direction, and outer sleeve 125, which is engaged with outer ratchet 1213 by means of bolus pawl 124, is rotatable in the opposite direction to the direction in which agitator shaft 123 is rotated.
Fig. 7 is a schematic view of the stirring cavity, and as shown in fig. 7, a push injection stirring assembly 5 is arranged at a lower end position in the stirring cavity 21 of the stirring cavity 2, the push injection stirring assembly 5 includes a push injection piston 54 and an injection piston 51, the shape of the push injection piston 54 is consistent with that of the stirring cavity 21, and the diameter of the push injection piston is consistent with the inner diameter of the stirring cavity 21; the upper end face of the pushing piston 54 is fixedly provided with an obliquely arranged stirring blade 52, the stirring blade 52 is an elastic blade, one end of the elastic blade is fixed at the edge of one side of the upper end face of the pushing piston 54, and an inner hole for the injection piston 51 to pass through is correspondingly formed in the elastic blade; the injection piston 51 has a shape corresponding to the syringe 3 and a diameter corresponding to the inner diameter of the syringe 3; piston hole has been seted up in the position department that injects piston 54 and syringe 3 are corresponding, injection piston 51 sets up in it, injection piston 51 terminal surface down seted up with the corresponding square hole of the square shaft of (mixing) shaft 123 upper end, when the body 1 top is installed through the buckle mode to the consumptive material part, the square hole cover of injection piston 51 terminal surface is established on the square shaft of (mixing) shaft 123 upper end, through the two cooperation, drive injection piston 51 by (mixing) shaft 123 and rotate, and then drive and inject piston 54 and rotate, and then drive stirring vane 52 on it and rotate and carry out the bone cement stirring.
The two sides of the piston hole of the pushing piston 54 are provided with movable grooves, the side wall of the movable groove close to the injection piston 51 is provided with a through hole, and the corresponding position on the side wall of the injection piston 51 is provided with a corresponding through hole; a spring 55 is transversely fixed in the movable groove, the end of the spring 55 is connected with a stop plate 56, the end of the stop plate 56 passes through the through hole of the side wall of the movable groove and then extends into the through hole on the side wall of the injection piston 51, as shown in fig. 7, the front end of the stop plate extends upwards to form an inclined part which inclines inwards and downwards, a through hole is arranged at the position of the upper side wall of the movable groove corresponding to the inclined part, a contact block 53 is arranged in the through hole, the lower end surface of the contact block 53 is an inclined surface corresponding to the inclined part, in the invention, the inclined angle of the inclined part is theta, as shown in fig. 9, the length of the contact block 53 extending out of the upper side wall of the movable groove is a, the length of the stop plate 56 extending out of.
In the present invention, a slope inclined inward and downward may be provided at the front end of the blocking plate 56 below the contact block 53, including but not limited to the above-mentioned corresponding slope portion formed by extending upward, and a corresponding slope groove may also be dug at the front end; correspondingly, the lower end of the contact block 53 may be designed to be vertical, and an inclined surface corresponding to the inclined surface of the front end of the blocking plate 56 may be provided on the lower end surface thereof.
In the present invention, another idea is provided that a vertical surface is provided at the front end of the blocking plate 56 below the contact block 53, including but not limited to a vertical portion extending upward, and a corresponding longitudinal groove may be dug at the front end; correspondingly, a slope corresponding to the front vertical surface of the blocking plate 56 is provided on the lower end surface of the contact block 53.
In the present invention, a stopper extending outward in the transverse direction is provided in the middle of the contact block 53 to limit the position of the contact block 53.
In the present invention, a sealing ring is provided between the outer side wall of the pushing piston 54 and the inner wall of the stirring chamber 21, and a sealing ring is provided between the injection piston 51 and the inner wall of the piston hole of the pushing piston 54.
In the invention, 1-2 mm of leakage-proof rubber is arranged outwards along the radial direction at the edges of the upper end faces of the injection piece and the injection piston.
In the invention, the upper end surface of the stirring cavity 2 is provided with a mounting hole, and the injection tube 3 is fixedly mounted on the mounting hole.
The working principle of the invention is as follows:
the consumable part is installed above the body 1 in a buckling mode, the injection tube 3 is detached, the injection tube 3 is screwed down after calcium phosphate composite powder and water to be mixed are injected into the stirring cavity 2 through the installation hole, the driving motor 111 is controlled to drive the driving gear 112 to rotate, so that the driven gear 121 meshed with the driving gear 112 is driven to rotate, the stirring shaft 123 meshed with the inner ratchet 1212 on the driven gear 121 through the stirring pawl 122 is further driven to rotate in a single direction, the stirring shaft 123 drives the injection piston 51 to rotate through the square shaft at the tail end of the stirring shaft 123, the injection piston 54 is driven to rotate, the stirring blade 52 on the injection piston 54 is driven to rotate, stirring is carried out, and bone cement is obtained after stirring;
after the cement is stirred, the driving motor 111 is controlled to rotate reversely, so that the driven gear 121 is driven to rotate, at the moment, the driven gear 121 drives the outer sleeve 125 meshed with the outer ratchet 1213 through the injection pawl 124 to rotate in a single direction, so that the inner sleeve 126 is driven to rotate, the nut 127 is fixed, and the thread turning direction of the nut is consistent with that of the outer ratchet 1213, so that the inner sleeve 126 moves upwards in the nut 127, and the inner sleeve 126 slides upwards in the outer sleeve 125; during the upward movement of the inner sleeve 126, the injection piston 51 is pushed to move upward; at this time, because the injection piston 51 and the pushing piston 54 are fixed by the blocking plate 56, the injection piston 51 drives the pushing piston 54 to move upward together, so that the cement stirred in the stirring cavity 21 is pressed into the syringe 3; and the stirring blade 52 on the pushing piston 54 is gradually compressed under the compression of the upper end surface of the stirring cavity 21, and is finally flattened on the upper end surface of the pushing piston 54, as shown in fig. 8 (a).
At this time, the upper end of the contact block 53 in the movable groove contacts the upper end face of the mixing cavity 21 and moves downward under the action of the pressure, and due to the matching action of the inclined surface of the lower end face of the contact block 53 and the inclined portion, an outward pressure is applied to the blocking plate 56 to push the blocking plate 56 to compress the spring 55 to move toward the outer side of the two ends, when the injection piston 54 moves to the uppermost end of the mixing cavity 21, the contact block 53 moves downward to the limit position, at this time, the part of the blocking plate 56 extending out of the side wall of the movable groove is completely retracted, the injection piston 51 is separated from the injection piston 52, and moves upward alone under the driving of the inner sleeve 126, so as to push the bone cement pressed into the injection tube 3 to be conveyed to the outside for injection, as shown in fig..
The pushing and stirring device is provided with two cavities with different cross sections, and the pushing and stirring piston and the injection piston move together under the action of the blocking block in the process of transferring bone cement from the cavity with the thicker cross section to the cavity with the thinner cross section. When the bone cement is completely transferred into the thinner cavity, the injection piston is remained at the lower part of the cavity, and the injection piston independently enters the upper part of the cavity to inject the bone cement to a focus point.
The invention can be used for bone cement injection stirring in the medical field, and can also be applied to other fields needing stirring and realizing injection. In addition, the invention not only can be operated by hands, but also can be installed with the mechanical arm, and the mechanical arm controls the motor to rotate and stop, thereby realizing full-automatic operation.
Although the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the details of the foregoing embodiments, and various equivalent changes (such as number, shape, position, etc.) may be made to the technical solution of the present invention within the technical spirit of the present invention, and these equivalent changes are all within the protection scope of the present invention.
Claims (17)
1. The utility model provides a push injection agitating unit which characterized in that: the method comprises the following steps:
the cavity comprises a stirring cavity with stirring blades and an injection tube communicated with the stirring cavity;
the transmission assembly comprises a lifting assembly and a stirring shaft, wherein the lifting assembly is driven by a motor, and the stirring shaft is matched with the stirring blades to complete stirring;
and the injection piece is driven by the lifting assembly and is used for injecting the contents in the stirring cavity into the injection tube and then separating out an injection piston to inject into the injection tube.
2. The bolus stirring device of claim 1, wherein the elevation assembly and the stirring shaft are driven by a motor for controlling forward and reverse rotation.
3. The bolus stirring device of claim 2, wherein: the motor controls the lifting assembly and the stirring shaft through a driving wheel, and the driving wheel comprises an outer ratchet wheel and an inner ratchet wheel which is coaxial and opposite to the outer ratchet wheel and is arranged in the outer ratchet wheel; the lifting assembly comprises a rotating part engaged with the outer ratchet wheel through a pawl and a lifting part lifted along with the rotation of the rotating part; the stirring shaft is meshed with the inner ratchet wheel through a pawl.
4. The bolus stirring device of claim 2, wherein: the rotating part is the outer sleeve, the lift portion is for sliding setting is in inner skleeve in the outer sleeve, the outer sleeve with realize sliding connection through sliding tray and slider between the inner skleeve.
5. The bolus stirring device of claim 4, wherein: the stirring shaft is arranged in the inner sleeve.
6. The bolus stirring device of claim 2, wherein: the upper end surface of the injection part is fixedly connected with the stirring blade and is in matched connection with the stirring shaft; the injection piston is arranged at the upper end of the lifting component.
7. The bolus stirring device of claim 2, wherein: the injection piston is characterized in that a limiting hole is formed in the side wall of the injection piston, the injection part is fixed with a limiting block and a pressing block matched with the limiting block through a spring, and the pressing block is matched with the limiting block to realize that the limiting block compression spring enters and exits the limiting hole after being pressed by the upper end face of the stirring cavity.
8. The bolus stirring device of claim 7, wherein: the front end of the limiting block is provided with an inclined plane which inclines inwards and downwards at the position below the pressing block, and the lower end of the pressing block is matched with the inclined plane.
9. The bolus stirring device of claim 7, wherein: the front end of the limiting block is provided with an inclined plane or a vertical plane which inclines inwards and downwards at the position below the pressing block, the lower end of the pressing block is correspondingly provided with an inclined plane, and the pressing block is matched with the front end of the limiting block through the inclined plane at the lower end of the pressing block.
10. The bolus stirring device of claim 7, wherein: and the middle part of the pressing block is provided with a limiting pin which extends outwards along the transverse direction and is used for limiting the position of the pressing block.
11. The bolus stirring device of claim 2, wherein: the stirring blade is obliquely arranged, one end of the stirring blade is fixed at the edge of one side of the upper end face of the injection piece, and the stirring blade is provided with an inner hole for the injection piston to pass through.
12. The bolus stirring device of claim 2, wherein: the end of the stirring shaft is a square shaft, a square hole corresponding to the square shaft at the upper end of the stirring shaft is formed in the lower end face of the injection piston, and the square hole and the square shaft are matched with each other to realize torque transmission.
13. The bolus stirring device of claim 2, wherein: sealing rings are arranged between the injection piece and the stirring cavity and between the injection piston and the injection piece.
14. The bolus stirring device of claim 2, wherein: and the edge of the upper end surface of the injection piston is provided with 1-2 mm of leakage-proof rubber outwards along the radial direction.
15. The bolus stirring device of claim 2, wherein: a shell is arranged outside the transmission assembly, and the stirring cavity and the shell are installed in a matched mode through a buckle.
16. The bolus stirring device of claim 2, wherein: the stirring cavity is provided with a mounting hole, and the injection tube is fixedly mounted on the stirring cavity; and disassembling the injection tube, and injecting the stirred material into the stirring cavity through the mounting hole.
17. A bolus stirring device as claimed in any one of claims 1 to 16, wherein: the injection stirring device is connected with the mechanical arm and controls the motor to start and stop through the mechanical arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011460890.6A CN112603519B (en) | 2020-12-11 | 2020-12-11 | Push injection stirring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011460890.6A CN112603519B (en) | 2020-12-11 | 2020-12-11 | Push injection stirring device |
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| Publication Number | Publication Date |
|---|---|
| CN112603519A true CN112603519A (en) | 2021-04-06 |
| CN112603519B CN112603519B (en) | 2022-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011460890.6A Active CN112603519B (en) | 2020-12-11 | 2020-12-11 | Push injection stirring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114642492A (en) * | 2022-03-16 | 2022-06-21 | 燕山大学 | Bone cement remote injection device for vertebroplasty |
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| CN203369946U (en) * | 2013-04-23 | 2014-01-01 | 中山市世医堂医疗器械有限公司 | A bone cement stirring and injection device |
| CN105147384A (en) * | 2015-07-30 | 2015-12-16 | 苏州爱得科技发展股份有限公司 | Bone cement stirring and injecting system |
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Cited By (2)
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| CN114642492B (en) * | 2022-03-16 | 2024-03-26 | 燕山大学 | Bone cement remote injection device for vertebroplasty |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112603519B (en) | 2022-02-15 |
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