CN113274114B - Bone cement injection device - Google Patents
Bone cement injection device Download PDFInfo
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- CN113274114B CN113274114B CN202110520066.3A CN202110520066A CN113274114B CN 113274114 B CN113274114 B CN 113274114B CN 202110520066 A CN202110520066 A CN 202110520066A CN 113274114 B CN113274114 B CN 113274114B
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- bone cement
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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
-
- 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
-
- 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
- A61B17/7097—Stabilisers comprising fluid filler in an implant, e.g. balloon; devices for inserting or filling such implants
-
- 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
- A61B17/8822—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it characterised by means facilitating expulsion of fluid from the introducer, e.g. a screw pump plunger, hydraulic force transmissions, application of vibrations or a vacuum
-
- 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
-
- 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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4601—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for introducing bone substitute, for implanting bone graft implants or for compacting them in the bone cavity
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
- A61F2/4611—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof of spinal prostheses
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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
- B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
- B01F31/44—Mixers with shaking, oscillating, or vibrating mechanisms with stirrers performing an oscillatory, vibratory or shaking movement
- B01F31/441—Mixers with shaking, oscillating, or vibrating mechanisms with stirrers performing an oscillatory, vibratory or shaking movement performing a rectilinear reciprocating movement
-
- 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)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
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- Animal Behavior & Ethology (AREA)
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- General Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Neurology (AREA)
- Transplantation (AREA)
- Physical Education & Sports Medicine (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Vascular Medicine (AREA)
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- Materials For Medical Uses (AREA)
Abstract
The invention relates to the technical field of medical equipment, and discloses a bone cement injection device, which comprises: a base; an injection tube having an open cavity for holding bone cement; the sealing assembly is fixed on the base and comprises a sealing cover capable of sealing the open cavity of the injection cylinder; the stirring assembly comprises a stirring screw rod, one end of the stirring screw rod extends into the injection tube and is in threaded transmission with the sealing cover, and the other end of the stirring screw rod extends out of the injection tube; the driving component is arranged on the base in a sliding manner, and the driving component and the stirring screw rod are fixedly connected with one end of the injection tube. The bone cement injection device realizes the integrated functions of bone cement injection, stirring and injection simultaneously in the whole process; meanwhile, in the whole bone cement stirring and injecting process of the bone cement injecting device, the sealing cover and the bone cement injecting interface keep a static state relative to a patient, and the safety of the operation is ensured.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a bone cement injection device.
Background
The bone cement is a water-soluble high molecular compound with excellent performance and wide application, and belongs to a high-tech and high-added-value fine chemical product. The bone cement has wide application in medicine, and can be used as glidant of capsules, cosolvent of injection, dispersant of liquid preparation, and stabilizer of enzyme and thermosensitive medicament. The bone cement is also a medical material for orthopedic surgery, and is mainly used for filling bone in artificial joint replacement surgery and vertebral body shaping surgery. Currently, bone cement injectors are often used for injecting and filling bone cement in orthopedic operations in various hospitals. The bone cement begins to be like mortar, can be kneaded, extruded into any shape and then is gradually solidified, before the bone cement is hardened, a doctor places the bone cement at a position to replace a joint or injects the bone cement into a vertebral body, and after the reaction is finished, the firm bone cement can successfully inlay the artificial joint and the human skeleton and firmly fix the artificial joint.
The bone cement filling method has great advantages in orthopedic surgery, but doctors have great inconvenience in filling with a bone cement injector in the actual surgery process:
on one hand, during surgery, doctors firstly pour the powder and liquid of the bone cement into a container to be stirred evenly by hand, and the stirred bone cement is used immediately or is solidified quickly, which has certain influence on the surgery.
On the other hand, in the bone surgery process, a doctor holds the bone cement injector to slowly inject bone cement into a bone cavity of a patient while considering the bone cement injection amount and the injection passage. The injection amount and the injection position into the vertebral body can be observed by means of C-arm fluoroscopy, so doctors often advance a little bone cement, and then all doctors leave an operating room to perform C-arm fluoroscopy imaging. And according to the perspective result, the doctor enters the operating room again to continue the bone cement propelling process. The above processes are repeated continuously until the injected bone cement quantity meets the requirements, so as to achieve the curative effect of the operation. In the process, the doctor wastes operation time and increases the pain of the patient, the doctor injects the bone cement by manual operation, the injection amount of the bone cement cannot be accurately realized, and the injection amount is not stable enough to bring great risk to the operation. However, there is no product on the market at present, which can solve the inconvenience in the operation of the doctor, and the operation process of the doctor is very annoying.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
The invention aims to: provided is a bone cement injection device capable of integrating injection, stirring and automatic injection of bone cement.
In order to achieve the above object, the present invention provides the following technical solutions:
a bone cement injection device, comprising:
a base;
an injection tube having an open chamber for receiving bone cement;
the sealing assembly is fixed on the base and comprises a sealing cover capable of sealing the open cavity of the injection cylinder;
the stirring assembly comprises a stirring screw rod, one end of the stirring screw rod extends into the injection tube and is in threaded transmission with the sealing cover, and the other end of the stirring screw rod extends out of the injection tube;
the driving component is arranged on the base in a sliding manner, and the driving component and the stirring screw rod are fixedly connected with one end of the injection tube.
As an embodiment of this embodiment, the open end of the cartridge has an injection portion:
the driving assembly executes output in a first rotating direction to drive the stirring screw rod to be in threaded transmission with the sealing cover, and the injection tube, the stirring assembly and the driving assembly slide together along the base in the direction away from the sealing cover of the sealing assembly until the injection part is communicated with the open cavity for injecting bone cement;
the driving component executes output in a second rotating direction opposite to the first rotating direction to drive the stirring screw rod to be in threaded transmission with the sealing cover, the injection tube, the stirring component and the driving component slide to the sealing cover along the base in the direction close to the sealing cover of the sealing component to separate the injection part from the open cavity, the output in the second rotating direction is continuously kept, and the stirring component can push the stirred bone cement out of the injection tube to inject the bone cement;
optionally, the injection part is a local flaring structure arranged at the open end or a communication port arranged on the injection cylinder close to the open end.
As an implementation manner of this embodiment, the stirring assembly includes a stirring wheel that is disposed on the stirring screw rod in a spiral transmission manner, the driving assembly performs output in a first rotation direction, the stirring screw rod and the stirring wheel are relatively stationary and move together in a direction away from the sealing cover of the sealing assembly, and when the driving assembly performs output in a second rotation direction, the stirring wheel rotates spirally in a direction towards the sealing cover close to the sealing assembly along the stirring screw rod to stir and inject the bone cement.
As an implementation manner of this embodiment, the sealing assembly includes a connecting member, one end of the connecting member is fixed on the base, and the other end of the connecting member is fixedly connected to the sealing cover, so that the sealing cover is suspended on the base.
As an implementation manner of this embodiment, the base includes a bottom wall and a side wall perpendicular to the bottom wall, the driving assembly is slidably mounted on the bottom wall, and one end of the connecting member is fixed on the side wall of the base.
As an implementation manner of this embodiment, the connecting member is a connecting screw, a mounting groove is formed on the side wall of the base, a nut end of the connecting screw is fixed in the mounting groove, and a threaded end of the connecting screw is fixedly connected with the sealing cover through a thread.
As an implementation manner of this embodiment, a threaded through hole for screw transmission with the stirring screw is provided at a central position of the sealing cover, and two threaded connection holes for fixed connection with the connection screw are symmetrically provided on two sides of the sealing cover at the central position.
As an implementation manner of this embodiment, a bone cement injection joint for externally connecting an external injector is disposed on the sealing cover plate;
optionally, the bone cement injection connector is a luer connector.
As an implementation manner of this embodiment, the driving assembly includes a motor fixing seat and a motor, the motor fixing seat is slidably disposed on the base, the motor is fixedly mounted on the motor fixing seat, and an output shaft of the motor is connected to the stirring screw rod.
As an implementation manner of this embodiment, the motor fixing device includes a slide rail and a slide block, the slide rail is fixedly installed on the base, the slide block is slidably disposed on the slide rail, and the motor fixing seat is fixedly installed on the slide block.
Compared with the prior art, the invention has the beneficial effects that:
the bone cement injection device of the invention is used: the drive assembly works, injection tube, stirring assembly, drive assembly are relatively fixed, but the stirring assembly can be in the injection tube rotation that does not stop, the one end of stirring screw stretches into in the injection tube and between the sealed lid screw drive, they can be for sealed lid motion together, when relative motion has the space to the pan feeding mouth of sealed lid and injection tube, drive assembly pauses, pours into bone cement powder and liquid into; make drive assembly antiport again, injection tube, stirring subassembly, drive assembly are sealed with the injection tube for sealed reverse motion of covering together, and the stirring subassembly rotates stirring bone cement powder and liquid ceaselessly simultaneously, and when relative motion reached bone cement and sealed lid contact, the continuation motion can extrude the bone cement injection interface of the bone cement through the injection tube of stirring, injects the patient through the outside syringe of connecting.
The bone cement injection device realizes the integrated functions of bone cement injection, stirring and injection simultaneously in the whole process; meanwhile, in the whole bone cement stirring and injecting process of the bone cement injecting device, the sealing cover and the bone cement injecting interface keep a static state relative to a patient, and the safety of the operation is ensured.
The invention provides a bone cement injection device, which has the following advantages:
1. the addition of the stirring component 2 realizes the function of integrating the injection and the stirring of the bone cement.
2. The control mode of the encoder on the driving assembly is safer than that of a bone cement injector which is directly operated, and the injection amount of the bone cement can be accurately measured when a doctor operates the bone cement injector.
3. The doctor does not need to be limited to operate beside an operating table of a patient, the doctor can operate in any remote distance and any direction in a Bluetooth mode, and no external factors interfere with the injection device in the operation process, so that the working strength of medical staff can be reduced, and the operation safety is improved.
In conclusion, the advantages of a bone cement injection device according to the invention are of great significance in medical procedures.
Drawings
FIG. 1 is an overall structural view of a bone cement injection apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic view of a syringe barrel according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a stirring assembly according to an embodiment of the present invention;
FIG. 4 is a schematic view of a seal cap according to an embodiment of the present invention;
FIG. 5 is a schematic structural view of a bone cement injection interface according to an embodiment of the present invention;
FIG. 6 is a schematic structural view of a connector according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a motor fixing seat according to an embodiment of the invention;
fig. 8 is a schematic structural view of a motor of an embodiment of the present invention;
FIG. 9 is a schematic structural view of a coupling of an embodiment of the present invention;
FIG. 10 is a schematic structural diagram of a base according to an embodiment of the present invention;
FIG. 11 is a schematic structural view of a guide rail according to an embodiment of the present invention;
FIG. 12 is a schematic structural diagram of a slider according to an embodiment of the present invention.
Reference numbers in the drawings illustrate:
1-injection cylinder, 2-stirring subassembly, 3-sealed lid, 4-bone cement injection joint, 5-connecting piece, 6-motor fixing base, 7-motor, 8-shaft coupling, 9-base, 10-guide rail, 11-slider, 12-injection portion, 13-square boss, 14-stirring screw, 15-stirring wheel, 16-bone cement injection interface, 17-screw thread through hole, 18-screw thread connecting hole, 19-bayonet socket, 20-fixed disk, 21-output shaft, 22-mounting groove, 23-slide rail fixed orifices.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments.
Thus, the following detailed description of the embodiments of the invention is not intended to limit the scope of the invention as claimed, but is merely representative of some embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments of the present invention and the features and technical solutions thereof may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "upper", "lower", and the like refer to orientations or positional relationships based on those shown in the drawings, or orientations or positional relationships that are conventionally arranged when the products of the present invention are used, or orientations or positional relationships that are conventionally understood by those skilled in the art, and such terms are used for convenience of description and simplification of the description, and do not refer to or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used solely to distinguish one from another, and are not to be construed as indicating or implying relative importance.
Referring to fig. 1 to 12, the present embodiment provides a bone cement injection apparatus, including:
a base 9;
an injection tube 1 having an open chamber for receiving bone cement;
a sealing assembly fixed on the base 9 and comprising a sealing cover 3 capable of sealing the open chamber of the syringe 1;
the stirring component 2 comprises a stirring screw rod 14, one end of the stirring screw rod 14 extends into the injection tube 1 and is in threaded transmission with the sealing cover 3, and the other end of the stirring screw rod 14 extends out of the injection tube 1;
and the driving component is arranged on the base 9 in a sliding way and is fixedly connected with one end, extending out of the injection cylinder 1, of the stirring screw rod 14.
The bone cement injection device of the present embodiment, when in use: the drive assembly works, the injection tube 1, the stirring assembly 2 and the drive assembly are relatively fixed, but the stirring assembly 2 can rotate in the injection tube 1 continuously, one end of the stirring screw 14 extends into the injection tube 1 and is in threaded transmission with the sealing cover 3, the stirring screw and the sealing cover can move relative to the sealing cover 3 together, and when the stirring screw moves to a space between the sealing cover 3 and a feeding port of the injection tube 1 relatively, the drive assembly stops working, and bone cement powder and liquid are injected; make drive assembly antiport again, injection tube 1, stirring subassembly 2, drive assembly be relative to sealed 3 reverse motion of lid together, seal injection tube 1, stirring subassembly 2 rotates stirring bone cement powder and liquid ceaselessly simultaneously, when relative motion to bone cement and sealed 3 contacts, the continuous motion can extrude the bone cement who stirs through injection tube 1's bone cement injection interface 16, injects the patient through the outside syringe of connecting.
The bone cement injection device of the embodiment realizes the integrated functions of bone cement injection, stirring and injection simultaneously in the whole process; meanwhile, in the whole bone cement stirring and injecting process of the bone cement injecting device, the sealing cover 3 and the bone cement injecting interface keep a static state relative to a patient, and the safety of an operation is ensured.
The present embodiment provides a bone cement injection device, which has the following advantages:
1. the addition of the stirring component 2 realizes the function of integrating the injection and the stirring of the bone cement.
2. The control mode of the encoder on the driving assembly is safer than that of a direct operation bone cement injector, and the injection amount of the injected bone cement can be accurately measured when a doctor operates the bone cement injector.
3. The doctor does not need to be limited to operate beside an operating table of a patient, the doctor can operate in any remote distance and any direction in a Bluetooth mode, and no external factors interfere with the injection device in the operation process, so that the working strength of medical staff can be reduced, and the operation safety is improved.
In summary, the advantages of the bone cement injection device of the present embodiment are of great significance in the medical procedure.
Further, as shown in fig. 1, 2 and 3, the open end of the syringe 1 of the present embodiment has an injection portion 12: the driving component executes the output in the first rotating direction to drive the stirring screw 14 to perform thread transmission with the sealing cover 3, and the injection tube 1, the stirring component 2 and the driving component slide together along the base 9 in the direction away from the sealing cover 3 of the sealing component until the injection part 12 is communicated with the open cavity for injecting bone cement.
In this embodiment, the driving assembly executes output in a second rotation direction opposite to the first rotation direction to drive the stirring screw 14 to perform thread transmission with the sealing cover 3, the syringe 1, the stirring assembly and the driving assembly slide to the sealing cover 3 along the base 9 in a direction close to the sealing cover 3 of the sealing assembly to separate the injection portion 12 from the open cavity, the output in the second rotation direction is continuously maintained, and the stirring assembly can push the stirred bone cement out of the syringe 1 for bone cement injection.
Alternatively, the injection part 12 is a local flaring structure disposed at the open end or a communication port disposed on the syringe barrel 1 near the open end.
As shown in fig. 3, the stirring assembly of this embodiment includes a stirring wheel 15 disposed on the stirring screw 14 in a spiral transmission manner, the driving assembly performs output in a first rotation direction, the stirring screw 14 and the stirring wheel 15 are relatively stationary and move in a direction away from the sealing cover 3 of the sealing assembly, and when the driving assembly performs output in a second rotation direction, the stirring wheel 15 rotates spirally along the stirring screw 14 in a direction close to the sealing cover 3 of the sealing assembly, so as to stir and inject the bone cement.
As shown in fig. 1, 4 and 5, in the bone cement injection device of the present embodiment, the sealing assembly includes a connecting member 5, one end of the connecting member 5 is fixed on a base 9, and the other end is fixedly connected to the sealing cover 3, so that the sealing cover 3 is suspended on the base 9.
As shown in fig. 1, 4, 6 and 10, the base 9 of the present embodiment includes a bottom wall and a side wall perpendicular to the bottom wall, the driving assembly is slidably mounted on the bottom wall, and one end of the connecting member 5 is fixed on the side wall of the base 9.
Specifically, in order to realize the fixed installation of the sealing cover 3, the connecting member 5 in this embodiment is a connecting screw, a mounting groove 22 is formed on the side wall of the base 9, a nut end of the connecting screw is fixed in the mounting groove 22, and a threaded end of the connecting screw is in threaded fixed connection with the sealing cover 3.
In this embodiment, a threaded through hole 17 for threaded transmission with the stirring screw 14 is provided at the center of the sealing cover 3, and two threaded connection holes 18 for fixed connection with a connection screw are symmetrically provided at two sides of the sealing cover 3 at the center.
The sealing cap 3 of the present embodiment is provided with a bone cement injection port 16 for connecting the bone cement injection joint 4.
As shown in fig. 1 and 5, the sealing cap 3 according to the present embodiment is provided with a cement injection connector 4 for externally connecting an external syringe.
Optionally, the bone cement injection connector 4 is a luer connector.
As shown in fig. 1, 7 and 8, the driving assembly of this embodiment includes a motor fixing seat 6 and a motor 7, the motor fixing seat 6 is slidably disposed on a base 9, the motor 7 is fixedly mounted on the motor fixing seat 6, and an output shaft 21 of the motor 7 is connected to the stirring screw 14. The output shaft 21 of the present embodiment is connected to the stirring screw 14 via the coupling 8.
Specifically, the motor fixing base 6 of the present embodiment includes a fixing plate 20 for fixedly mounting the motor 7.
As shown in fig. 1, 2 and 7, the bottom of the syringe 1 of the present embodiment is provided with a square boss 13 which is inserted into a bayonet 19 of the motor fixing base 6 for fixing.
The bone cement injection device of the embodiment comprises a sliding rail 10 and a sliding block 11, wherein the sliding rail 10 is fixedly installed on the base 9, the sliding block 11 is slidably arranged on the sliding rail 10, and the motor fixing seat 6 is fixedly installed on the sliding block 11. The base 9 of this embodiment is provided with a slide rail fixing hole 23 for fixing the slide rail 10.
When the bone cement injection device is used, firstly, the motor 7 works, at the moment, the injection tube 1, the stirring component 2, the motor fixing seat 6, the motor 7, the coupler 8 and the sliding block 11 are relatively fixed, but the stirring component 2 can continuously rotate in the injection tube 1, and can move relative to the sealing cover 3 along the guide rail 10, and when the stirring component moves to a space between the sealing cover 3 and the injection part 12, the motor 7 is stopped to inject bone cement powder and liquid; make motor 7 antiport again, injection tube 1, stirring subassembly 2, motor fixing base 6, motor 7, shaft coupling 8, slider 11 is for sealed 3 reverse motions of lid together, 1 sealed with injection tube, stirring subassembly 2 is rotatory stirring bone cement powder and liquid ceaselessly simultaneously, when relative motion arrives bone cement and sealed 3 contacts of lid, the continuation motion can be with the bone cement who stirs through 4 extrusions of bone cement injection joint, inject the patient through the outside syringe that 4 connections of bone cement injection joint, this process has realized the integration function that bone cement injected into and stirred simultaneously.
In the present embodiment, the injection tube 1, the stirring component 2, the sealing cover 3, the bone cement injection connector 4, and the connecting member 5 directly contact the injected bone cement powder and liquid during use, and the bone cement stirred after use is solidified on the bone cement injection connector and can only be used once, so that they are all disposable materials, and generally made of medical plastics, such as PE material.
The bone cement injection device of the embodiment has small volume and light overall weight, and is simple and convenient to install.
The above embodiments are only used for illustrating the invention and not for limiting the technical solutions described in the invention, and although the present invention has been described in detail in the present specification with reference to the above embodiments, the present invention is not limited to the above embodiments, and therefore, any modification or equivalent replacement of the present invention is made; all such modifications and variations are intended to be included herein within the scope of this disclosure and the appended claims.
Claims (7)
1. A bone cement injection device, comprising:
a base;
an injection tube having an open chamber for receiving bone cement;
the sealing assembly is fixed on the base and comprises a sealing cover capable of sealing the open cavity of the injection cylinder;
the stirring assembly comprises a stirring screw rod, one end of the stirring screw rod extends into the injection tube and is in threaded transmission with the sealing cover, and the other end of the stirring screw rod extends out of the injection tube;
the driving component is arranged on the base in a sliding way and is fixedly connected with one end of the stirring screw rod, which extends out of the injection tube;
the open end of the syringe has an injection portion:
the drive assembly executes output in a first rotating direction to drive the stirring screw rod to be in threaded transmission with the sealing cover, and the injection tube, the stirring assembly and the drive assembly slide together along the base in the direction away from the sealing cover of the sealing assembly until the injection part is communicated with the open cavity for injecting bone cement;
the driving assembly executes output in a second rotating direction opposite to the first rotating direction to drive the stirring screw rod to be in threaded transmission with the sealing cover, the injection tube, the stirring assembly and the driving assembly slide to the sealing cover along the base in the direction close to the sealing cover of the sealing assembly to separate the injection part from the open cavity, the output in the second rotating direction is continuously kept, and the stirring assembly can push the stirred bone cement out of the injection tube to inject the bone cement;
the injection part is a local outward-expanding structure arranged at the open end or a communication port arranged on the injection tube close to the open end;
the stirring assembly comprises a stirring wheel which is arranged on a stirring screw rod in a spiral transmission manner, the driving assembly executes output in a first rotating direction, the stirring screw rod and the stirring wheel are relatively static and move towards the direction far away from the sealing cover of the sealing assembly together, and when the driving assembly executes output in a second rotating direction, the stirring wheel spirally rotates towards the direction close to the sealing cover of the sealing assembly along the stirring screw rod to stir and inject the bone cement;
the sealing assembly comprises a connecting piece, one end of the connecting piece is fixed on the base, and the other end of the connecting piece is fixedly connected with the sealing cover, so that the sealing cover is suspended on the base;
a threaded through hole for threaded transmission with the stirring screw is formed in the center of the sealing cover;
and a bone cement injection joint for externally connecting an external injector is arranged on the sealing cover plate.
2. The bone cement injection apparatus of claim 1, wherein the base includes a bottom wall and a side wall perpendicular to the bottom wall, the drive assembly is slidably mounted on the bottom wall, and one end of the connector is secured to the side wall of the base.
3. The bone cement injection apparatus as claimed in claim 2, wherein the connecting member is a connecting screw, the base has a mounting groove formed on a side wall thereof, a nut end of the connecting screw is fixed in the mounting groove, and a threaded end of the connecting screw is fixedly connected to the sealing cap by a screw thread.
4. The bone cement injection apparatus as claimed in claim 3, wherein two screw coupling holes for fixedly coupling with the coupling screw are symmetrically formed at both sides of the center of the sealing cap.
5. The bone cement injection device of claim 1, wherein the bone cement injection fitting is a luer fitting.
6. The bone cement injection apparatus according to claim 1, wherein the driving assembly includes a motor fixing base slidably disposed on the base, and a motor fixedly mounted on the motor fixing base, an output shaft of the motor being connected to the stirring screw.
7. The bone cement injection apparatus according to claim 6, comprising a slide rail and a slide block, wherein the slide rail is fixedly mounted on the base, the slide block is slidably disposed on the slide rail, and the motor fixing seat is fixedly mounted on the slide block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110520066.3A CN113274114B (en) | 2021-05-13 | 2021-05-13 | Bone cement injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110520066.3A CN113274114B (en) | 2021-05-13 | 2021-05-13 | Bone cement injection device |
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| Publication Number | Publication Date |
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| CN113274114A CN113274114A (en) | 2021-08-20 |
| CN113274114B true CN113274114B (en) | 2023-04-07 |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5071040A (en) * | 1990-03-09 | 1991-12-10 | Pfizer Hospital Products Group, Inc. | Surgical adhesives mixing and dispensing implement |
| CN102202705A (en) * | 2008-10-31 | 2011-09-28 | 马林克罗特公司 | Multi-dose injection system |
| ES2696542T3 (en) * | 2009-02-06 | 2019-01-16 | Tecres Spa | Supply unit for a biphasic compound mixer |
| CN102008344A (en) * | 2009-09-09 | 2011-04-13 | 邵卫星 | Injecting device for injecting bone materials to vertebral body with remote control |
| CN204050335U (en) * | 2014-10-11 | 2014-12-31 | 刘鎏 | A kind of external medicinal liquid dispensation apparatus |
| CN209751700U (en) * | 2018-12-14 | 2019-12-10 | 颜廷卿 | Severe patient rescue equipment |
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