CN111840704B - Double-chamber medicament mixing injector - Google Patents
Double-chamber medicament mixing injector Download PDFInfo
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- CN111840704B CN111840704B CN202010620669.6A CN202010620669A CN111840704B CN 111840704 B CN111840704 B CN 111840704B CN 202010620669 A CN202010620669 A CN 202010620669A CN 111840704 B CN111840704 B CN 111840704B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31511—Piston or piston-rod constructions, e.g. connection of piston with piston-rod
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31596—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms comprising means for injection of two or more media, e.g. by mixing
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M2005/3117—Means preventing contamination of the medicament compartment of a syringe
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31596—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms comprising means for injection of two or more media, e.g. by mixing
- A61M2005/31598—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms comprising means for injection of two or more media, e.g. by mixing having multiple telescopically sliding coaxial pistons encompassing volumes for components to be mixed
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- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
Abstract
The present invention provides a dual-chamber medicine mixing syringe, comprising: the barrel, barrel one end is provided with the syringe needle, be provided with first piston in the barrel, first piston is with dividing into powder room and solution room in the barrel, be provided with the groove body on the barrel outer wall, the groove body is linked together with the powder room, be provided with the second piston in the solution room, the one end that the syringe needle was kept away from to the barrel is provided with the screw hole, screw rod one end and second piston connection, the screw rod other end passes the screw hole and extends outside the barrel to be connected with head rod one end, the head rod other end is connected with first clamp plate. The invention aims to provide a double-chamber medicament mixing injector which can quickly complete medicament mixing and improve injection efficiency.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to a double-chamber medicament mixing injector.
Background
A syringe is a common medical device that primarily uses a needle to draw or inject a gas or liquid. Medicaments for injection into the human body are usually enclosed in ampoules or vials. The ampoule bottle is generally a glass bottle, and a nurse breaks or breaks the top of the ampoule bottle at the time of injection, and the medicine is drawn into the syringe from the ampoule bottle by the syringe. The penicillin bottle is usually provided with a rubber plug, the rubber plug is punctured by a needle of a syringe for a nurse during injection, the needle penetrates through the rubber plug and then enters the penicillin bottle, and the needle is pulled out of the rubber plug after liquid medicine is sucked.
The ampoule bottle and the penicillin bottle have the advantages of low cost and small volume, and the penicillin bottle can further save the transportation and storage cost, but the ampoule bottle and the penicillin bottle have some defects in the actual use process.
Because the ampoule bottle is a glass bottle and the top of the ampoule bottle needs to be broken or broken manually when the ampoule bottle is used, broken glass easily enters a medicament to cause potential safety hazards on one hand, and broken glass scattered outside the bottle easily stabs doctors and nurses or patients on the other hand.
The problem of xiLin bottle lies in that to need the syringe needle to pierce through the rubber buffer during the use, can become dull behind the syringe needle puncture rubber buffer, can increase painful sense when pricking the human body again. The needle after piercing the rubber stopper may have rubber components and some people may be allergic to rubber.
The ampoule bottle and the penicillin bottle have the problem that the operation process is time-consuming, so that the injection outpatient service is in long queue; the operation links are also multiple, and the probability that the injection doctor is accidentally injured by the needle is increased, so that an injector convenient for mixing the medicaments needs to be designed.
Disclosure of Invention
Therefore, the invention aims to solve the problem that the injection efficiency is influenced because the medicine solvent is not convenient to mix in the prior art.
Therefore, the technical scheme adopted is that the double-chamber medicament mixing injector comprises: the barrel, barrel one end is provided with the syringe needle, be provided with first piston in the barrel, first piston will divide into powder room and solution room in the barrel, be provided with the groove body on the barrel outer wall, the groove body with the powder room is linked together, the indoor second piston that is provided with of solution, the barrel is kept away from the one end of syringe needle is provided with the screw hole, screw rod one end with second piston connection, the screw rod other end pass the screw hole extends to outside the barrel to be connected with head rod one end, the head rod other end is connected with the first clamp plate.
Preferably, the needle is inserted into the barrel.
Preferably, the outer wall of the first pressing plate is provided with anti-skid grains.
Preferably, the cross section of the cylinder is circular or rectangular.
Preferably, be provided with medicament mixing device on the outer wall of barrel, medicament mixing device includes:
the shell is arranged at the top end of the barrel, which corresponds to the powder chamber and is close to one side of the needle head relative to the groove body, the top end of the barrel is provided with an opening, the opening is communicated with the shell, the inner wall of the barrel is provided with a groove, and the groove is communicated with the opening;
the sealing plate is arranged in the groove;
the movable plate is arranged in the shell, the left side and the right side of the top end of the sealing plate are respectively provided with a second connecting rod, one end of each second connecting rod is connected with the sealing plate, and the other end of each second connecting rod penetrates through the opening to be connected with the movable plate;
the second pressing plate is arranged above the shell, the left side and the right side of the top end of the shell are respectively provided with a first through hole, one end of a third connecting rod is connected with the movable plate, and the other end of the third connecting rod penetrates through the first through hole and is connected with the second pressing plate;
and the spring is sleeved on the third connecting rod, one end of the spring is connected with the outer wall of the shell, and the other end of the spring is connected with the second pressing plate.
Preferably, a cover is arranged at the top end of the shell, one end of the cover is hinged with the shell, and the other end of the cover is in screw connection with the shell.
Preferably, the sealing plate is provided with a sealing ring.
Preferably, a stirring device is arranged in the housing, and the stirring device comprises:
the rotating drum is arranged between the moving plate and the sealing plate, and a plurality of stirring blades are arranged on the outer wall of the rotating drum along the circumferential direction;
one end of the first rotating shaft is connected with the rotating drum, the other end of the first rotating shaft penetrates through the moving plate and extends above the moving plate, and the first rotating shaft is rotatably connected with the moving plate;
the movable plate comprises a first guide groove and a second guide groove, wherein the width direction of the movable plate is respectively provided with the first guide groove and the second guide groove, the first guide groove and the second guide groove both extend along the length direction of the movable plate, a first sliding block is arranged in the first guide groove, a first rack is arranged on the right side of the first sliding block, a second sliding block is arranged in the second guide groove, and a second rack is arranged on the left side of the second sliding block;
the gear is arranged between the first rack and the second rack, the first rack is meshed with the gear, the second rack is meshed with the gear, and the circle center of the gear is connected with one end, away from the rotary drum, of the first rotary shaft;
the fixed plate is arranged above the first sliding block and is perpendicular to the first sliding block, a fixed block is arranged on the first sliding block, one end of the fixed plate is connected with the fixed block, the other end of the fixed plate extends to the position above the second sliding block, and a sliding groove is formed in the fixed plate along the length direction;
one end of the driving lever extends into the sliding groove, the other end of the driving lever is perpendicularly connected with one end of the rotating rod, the other end of the rotating rod is connected with one end of a second rotating shaft, a second through hole is formed in the top end of the shell, the other end of the second rotating shaft sequentially penetrates through the second through hole and the second pressing plate and extends to the position above the second pressing plate, the second rotating shaft is rotatably connected with the second pressing plate, and a handle is arranged at the upper end of the second rotating shaft.
Preferably, a guide opening extending along the length direction is formed in the bottom end of the moving plate, the guide opening is communicated with the first guide groove, one end of the connecting plate is connected with the first sliding block, and the other end of the connecting plate penetrates through the guide opening to be connected with the blade.
The technical scheme of the invention has the following advantages: the present invention provides a dual-chamber medicine mixing syringe, comprising: the barrel, barrel one end is provided with the syringe needle, be provided with first piston in the barrel, first piston will divide into powder room and solution room in the barrel, be provided with the groove body on the barrel outer wall, the groove body with the powder room is linked together, the indoor second piston that is provided with of solution, the barrel is kept away from the one end of syringe needle is provided with the screw hole, screw rod one end with second piston connection, the screw rod other end pass the screw hole extends to outside the barrel to be connected with head rod one end, the head rod other end is connected with the first clamp plate. The powder solvent and the solution can be quickly mixed in the cylinder, so that the operation procedures are reduced, and the injection efficiency is improved; because the needle head does not need to be inserted into the rubber plug, the pain of the needle head when penetrating into the skin can be reduced, and rubber allergy can be avoided.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a state diagram of the operation of the present invention;
FIG. 3 is a schematic structural diagram of a device for mixing pharmaceutical agents in accordance with the present invention;
FIG. 4 is a schematic view of the structure of a stirring apparatus of the present invention;
FIG. 5 is a schematic view of the structure of the moving plate of the present invention;
FIG. 6 is a schematic view of the mounting structure of the blade of the present invention;
wherein, 1-cylinder, 2-needle, 3-first piston, 4-powder chamber, 5-solution chamber, 6-groove body, 7-second piston, 8-threaded hole, 9-screw rod, 10-first connecting rod, 11-first pressing plate, 12-shell, 13-opening, 14-groove, 15-sealing plate, 16-moving plate, 17-second connecting rod, 18-second pressing plate, 19-first through hole, 20-third connecting rod, 21-spring, 22-cover, 23-rotary drum, 24-stirring blade, 25-first rotating shaft, 26-first guide groove, 27-second guide groove, 28-first slide block, 29-first rack, 30-second slide block, 31-second rack, 32-gear, 33-fixing plate, 34-fixing block, 35-sliding chute, 36-driving lever, 37-rotating rod, 38-second rotating shaft, 39-second through hole, 40-guide opening, 41-connecting plate and 42-blade.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
The present invention provides a dual chamber medication mixing syringe, as shown in fig. 1-2, comprising: barrel 1, 1 one end of barrel is provided with syringe needle 2, be provided with first piston 3 in the barrel 1, first piston 3 will cut apart into powder room 4 and solution room 5 in the barrel 1, be provided with groove body 6 on the 1 outer wall of barrel, groove body 6 with powder room 4 is linked together, be provided with second piston 7 in the solution room 5, barrel 1 is kept away from the one end of syringe needle 2 is provided with screw hole 8, screw rod 9 one end with second piston 7 is connected, and the screw rod 9 other end passes screw hole 8 extends to outside the barrel 1 to be connected with head rod 10 one end, the head rod 10 other end is connected with first clamp plate 11.
The working principle and the beneficial technical effects of the technical scheme are as follows: when the injection device is used, the screw 9 is rotated, the screw 9 and the threaded hole 8 are in threaded transmission, the second piston 7 and the first piston 3 are driven to move forwards, when the first piston 3 moves to the groove body 6, a gap is formed between the first piston 3 and the inner wall of the cylinder body 1, a solution in the solution chamber 5 flows into the powder chamber 4 through the gap to be mixed, when the screw 9 rotates into the solution chamber 5, the mixing of a powder medicament and the solution is completed, then the first pressing plate 11 is pushed by fingers, so that the first piston 3 and the second piston 7 continue to move forwards, air in the powder chamber 4 is discharged through the needle 2, then the needle 2 is pricked into the muscle of a patient, the first pressing plate 11 is pushed, and the injection of the medicament is completed. The powder solvent and the solution can be quickly mixed in the cylinder, so that the operation procedures are reduced, and the injection efficiency is improved; because the needle head does not need to be inserted into the rubber plug, the pain of the needle head when penetrating into the skin can be reduced, and rubber allergy can be avoided. The injector can be used for disposable medicament injectors, and is practical, safe and sanitary.
In one embodiment, the needle 2 is inserted into the barrel 1, and the needle 2 is convenient to disassemble and assemble.
In one embodiment, the first pressing plate 11 is provided with anti-slip lines on the outer wall, and the anti-slip lines can increase friction force and prevent slipping when the first pressing plate is operated by hands.
In one embodiment, the cylinder 1 is circular or rectangular in cross-section.
In one embodiment, as shown in fig. 3, a medicine blending device is disposed on an outer wall of the cylinder 1, and the medicine blending device includes:
the shell 12 is arranged at the top end of the barrel 1, which corresponds to the powder chamber 4 and is close to one side of the needle 2 relative to the groove body 6, the top end of the barrel 1 is provided with an opening 13, the opening 13 is communicated with the shell 12, the inner wall of the barrel 1 is provided with a groove 14, and the groove 14 is communicated with the opening 13;
a sealing plate 15 disposed in the groove 14;
the moving plate 16 is arranged in the shell 12, the left side and the right side of the top end of the sealing plate 15 are respectively provided with a second connecting rod 17, one end of each second connecting rod 17 is connected with the sealing plate 15, and the other end of each second connecting rod 17 penetrates through the opening 13 to be connected with the moving plate 16;
the second pressing plate 18 is arranged above the shell 12, the left side and the right side of the top end of the shell 12 are respectively provided with a first through hole 19, one end of a third connecting rod 20 is connected with the moving plate 16, and the other end of the third connecting rod 20 penetrates through the first through hole 19 to be connected with the second pressing plate 18;
and the spring 21 is sleeved on the third connecting rod 20, one end of the spring 21 is connected with the outer wall of the shell 12, and the other end of the spring 21 is connected with the second pressing plate 18.
The working principle and the beneficial technical effects of the technical scheme are as follows: after the solution in the solution chamber 5 enters the powder chamber 4, the second pressing plate 18 is pressed downwards, the third connecting rod 20, the moving plate 16 and the sealing plate 15 move downwards, the sealing plate 15 moves into the powder chamber 4, then the second pressing plate 18 is loosened, the sealing plate 15 moves upwards into the groove 14 under the action of the elastic force of the spring 21, and thus the second pressing plate 18 is pressed repeatedly for multiple times, the sealing plate 15 continuously reciprocates up and down, the powder and the solution in the powder chamber 4 are stirred and mixed uniformly, finally, the sealing plate 15 moves into the groove 14 under the action of the elastic force of the spring 21, the opening 13 is sealed, and finally, the operations of air exhaust and medicine injection are performed through the first piston 3 and the second piston 7. Because can make medicament and solution stirring mix more even through agitating unit for the liquid medicine absorbs more easily, accomplish the stirring back moreover, in closing plate 15 can the retraction recess 14 again, realize sealed, can not influence operations such as the row's of air, injection of liquid medicine.
In one embodiment, a cover 22 is disposed at the top end of the housing 12, one end of the cover 22 is hinged to the housing 12, the other end of the cover 22 is screwed to the housing 12, the cover 22 can protect the second pressing plate 18 from being operated by a person, and when the operation is needed, the medical staff can detach the screw at one end of the cover 22 to open the cover 22 for operation, thereby ensuring the safety of the medicine.
In one embodiment, the sealing plate 15 is provided with a sealing ring, which can improve the sealing effect of the sealing plate 15.
In one embodiment, as shown in fig. 4-5, a stirring device is disposed within the housing 12, the stirring device comprising:
a rotating drum 23 disposed between the moving plate 16 and the sealing plate 15, wherein a plurality of stirring blades 24 are circumferentially disposed on an outer wall of the rotating drum 23;
a first rotating shaft 25, one end of the first rotating shaft 25 is connected to the rotating drum 23, the other end of the first rotating shaft 25 penetrates through the moving plate 16 and extends above the moving plate 16, and the first rotating shaft 25 is rotatably connected to the moving plate 16;
a first guide groove 26 and a second guide groove 27, wherein the width direction of the moving plate 16 is provided with the first guide groove 26 and the second guide groove 27 respectively, the first guide groove 26 and the second guide groove 27 both extend along the length direction of the moving plate 16, a first slider 28 is arranged in the first guide groove 26, a first rack 29 is arranged on the right side of the first slider 28, a second slider 30 is arranged in the second guide groove 27, and a second rack 31 is arranged on the left side of the second slider 30;
a gear 32, which is arranged between the first rack 29 and the second rack 31, the first rack 29 is meshed with the gear 32, the second rack 31 is meshed with the gear 32, and the center of the gear 32 is connected with one end of the first rotating shaft 25 away from the rotating drum 23;
the fixed plate 33 is arranged above the first sliding block 28, the fixed plate 33 is perpendicular to the first sliding block 28, a fixed block 34 is arranged on the first sliding block 28, one end of the fixed plate 33 is connected with the fixed block 34, the other end of the fixed plate 33 extends to the position above the second sliding block 30, and a sliding groove 35 is arranged on the fixed plate 33 along the length direction;
one end of the shifting lever 36 extends into the sliding groove 35, the other end of the shifting lever 36 is vertically connected with one end of a rotating rod 37, the other end of the rotating rod 37 is connected with one end of a second rotating shaft 38, a second through hole 39 is formed in the top end of the shell 12, the other end of the second rotating shaft 38 sequentially penetrates through the second through hole 39 and the pressing plate 18 and extends to the upper portion of the pressing plate 18, the second rotating shaft 38 is rotatably connected with the pressing plate 18, and a handle 43 is arranged at the upper end of the second rotating shaft 38.
The working principle and the beneficial technical effects of the technical scheme are as follows: when the pressing plate 18 is pushed downwards to make the sealing plate 15 enter the powder chamber 4, the stirring blade 24 also enters the powder chamber 4, then the handle 43 is rotated by hand to drive the second rotating shaft 38 to rotate, the second rotating shaft 38 drives the rotating rod 37 to rotate, the rotating rod 37 drives the deflector rod 36 to move in the chute 35 of the fixing plate 33, so that the first slider 28 reciprocates in the first guide groove 26, the first rack 29 is meshed with the gear 32 to drive the gear 32 to rotate in the forward direction for a moment and rotate in the reverse direction for a moment, the gear 32 is meshed with the second rack 31 to drive the second slider 30 to reciprocate along the second guide groove 27, the corresponding gear 32 drives the first rotating shaft 25, the rotating drum 23 and the stirring blade 24 to rotate in the forward direction for a moment and rotate in the reverse direction for a moment, the powder and the liquid medicine in the powder chamber 4 are fully stirred and uniformly mixed, after the stirring is completed, the pressing plate 18 is loosened, under the action of the elastic force of the spring 21, the moving plate 16 moves upwards, correspondingly, the rotary drum 23 and the stirring blade 24 move together into the shell 12, the sealing plate 15 moves into the groove 14 to realize sealing, and then the air exhausting and injection operation of the mixed liquid medicine is carried out.
In one embodiment, as shown in fig. 6, the bottom end of the moving plate 16 is provided with a guide opening 40 extending along the length direction, the guide opening 40 is communicated with the first guide groove 26, one end of a connecting plate 41 is connected with the first slider 28, and the other end of the connecting plate 41 passes through the guide opening 40 and is connected with a blade 42.
The working principle and the beneficial technical effects of the technical scheme are as follows: when the stirring blade 24 rotates and stirs in the powder chamber 4, the first sliding block 28 reciprocates back and forth to drive the connecting plate 41 and the blade 42 to reciprocate back and forth along the guide port 40, and the blade 42 reciprocates back and forth to cut and crush large-particle powder in the solution, so that the powder medicament and the solution can be mixed uniformly more quickly.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. A dual chamber medication mixing syringe comprising: a cylinder body (1), one end of the cylinder body (1) is provided with a needle head (2), a first piston (3) is arranged in the cylinder body (1), the first piston (3) divides the interior of the cylinder body (1) into a powder chamber (4) and a solution chamber (5), a groove body (6) is arranged on the outer wall of the barrel body (1), the groove body (6) is communicated with the powder chamber (4), a second piston (7) is arranged in the solution chamber (5), a threaded hole (8) is formed in one end, away from the needle (2), of the barrel body (1), one end of a screw rod (9) is connected with the second piston (7), the other end of the screw rod (9) penetrates through the threaded hole (8) and extends out of the barrel body (1), and is connected with one end of a first connecting rod (10), and the other end of the first connecting rod (10) is connected with a first pressure plate (11);
be provided with medicament mixing device on the outer wall of barrel (1), medicament mixing device includes:
the needle-free powder spraying device comprises a shell (12), a powder chamber (4) and a groove body (6), wherein the shell (12) is arranged at the top end of the barrel (1) corresponding to one side, close to a needle (2), of the groove body (6), an opening (13) is formed in the top end of the barrel (1), the opening (13) is communicated with the shell (12), a groove (14) is formed in the inner wall of the barrel (1), and the groove (14) is communicated with the opening (13);
a sealing plate (15) disposed within the groove (14);
the moving plate (16) is arranged in the shell (12), the left side and the right side of the top end of the sealing plate (15) are respectively provided with a second connecting rod (17), one end of each second connecting rod (17) is connected with the sealing plate (15), and the other end of each second connecting rod (17) penetrates through the opening (13) to be connected with the moving plate (16);
the second pressing plate (18) is arranged above the shell (12), the left side and the right side of the top end of the shell (12) are respectively provided with a first through hole (19), one end of a third connecting rod (20) is connected with the movable plate (16), and the other end of the third connecting rod (20) penetrates through the first through hole (19) and is connected with the second pressing plate (18);
the spring (21) is sleeved on the third connecting rod (20), one end of the spring (21) is connected with the outer wall of the shell (12), and the other end of the spring (21) is connected with the second pressing plate (18).
2. A dual chamber medication mixing syringe according to claim 1, characterized in that the needle (2) is inserted on the barrel (1).
3. The dual chamber medication mixing syringe of claim 1 wherein the first platen (11) is provided with non-slip threads on its outer wall.
4. A dual chamber medication mixing syringe according to claim 1, characterized in that the cross-section of the barrel (1) is circular or rectangular.
5. A dual chamber medication mixing syringe according to claim 1, characterized in that the top of the housing (12) is provided with a lid (22), one end of the lid (22) is hinged to the housing (12), and the other end of the lid (22) is screwed to the housing (12).
6. The dual chamber medication mixing syringe of claim 1 wherein the sealing plate (15) is provided with a sealing ring.
7. A dual chamber medication mixing syringe according to claim 1, characterized in that within the housing (12) is provided a stirring device comprising:
the rotating drum (23) is arranged between the moving plate (16) and the sealing plate (15), and a plurality of stirring blades (24) are arranged on the outer wall of the rotating drum (23) along the circumferential direction;
one end of the first rotating shaft (25) is connected with the rotating drum (23), the other end of the first rotating shaft (25) penetrates through the moving plate (16) and extends above the moving plate (16), and the first rotating shaft (25) is rotatably connected with the moving plate (16);
the movable plate is characterized by comprising a first guide groove (26) and a second guide groove (27), wherein the width direction of the movable plate (16) is respectively provided with the first guide groove (26) and the second guide groove (27), the first guide groove (26) and the second guide groove (27) both extend along the length direction of the movable plate (16), a first sliding block (28) is arranged in the first guide groove (26), a first rack (29) is arranged on the right side of the first sliding block (28), a second sliding block (30) is arranged in the second guide groove (27), and a second rack (31) is arranged on the left side of the second sliding block (30);
a gear (32) arranged between the first rack (29) and the second rack (31), wherein the first rack (29) is meshed with the gear (32), the second rack (31) is meshed with the gear (32), and the center of the gear (32) is connected with one end, away from the rotary drum (23), of the first rotating shaft (25);
the fixed plate (33) is arranged above the first sliding block (28), the fixed plate (33) is perpendicular to the first sliding block (28), a fixed block (34) is arranged on the first sliding block (28), one end of the fixed plate (33) is connected with the fixed block (34), the other end of the fixed plate (33) extends to the position above the second sliding block (30), and a sliding groove (35) is formed in the fixed plate (33) along the length direction;
driving lever (36), driving lever (36) one end extends to in spout (35), driving lever (36) other end is connected with bull stick (37) one end is perpendicular, and the bull stick (37) other end is connected with second pivot (38) one end, casing (12) top is provided with second through-hole (39), and second pivot (38) other end passes in proper order second through-hole (39) second clamp plate (18) to extend to second clamp plate (18) top, second pivot (38) with second clamp plate (18) rotate and connect, second pivot (38) upper end is provided with handle (43).
8. The dual-chamber medicine mixing syringe according to claim 7, wherein the bottom end of the moving plate (16) is provided with a guide opening (40) extending along the length direction, the guide opening (40) is communicated with the first guide groove (26), one end of a connecting plate (41) is connected with the first slider (28), and the other end of the connecting plate (41) passes through the guide opening (40) to be connected with the blade (42).
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| CN202010620669.6A CN111840704B (en) | 2020-06-30 | 2020-06-30 | Double-chamber medicament mixing injector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010620669.6A CN111840704B (en) | 2020-06-30 | 2020-06-30 | Double-chamber medicament mixing injector |
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| CN111840704B true CN111840704B (en) | 2021-02-02 |
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| CN206603989U (en) * | 2016-09-30 | 2017-11-03 | 广州昕生医学材料有限公司 | Stir hybrid injection device |
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| CN109011029A (en) * | 2018-08-14 | 2018-12-18 | 北京大医未然生物科技有限公司 | A kind of pre-filled single-dose syringe of dual chamber |
| CN110251778A (en) * | 2019-06-26 | 2019-09-20 | 赵杰 | A kind of Internal Medicine-Oncology drug delivery device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5549561A (en) * | 1992-04-21 | 1996-08-27 | Pharmacia Ab | Injection cartridge arrangement |
| US5925019A (en) * | 1995-08-28 | 1999-07-20 | Pharmacia & Upjohn Ab | Device for displacing a member in a container |
| CN201012195Y (en) * | 2007-02-12 | 2008-01-30 | 刘爱英 | Manual electric injection powder medicine mixer |
| CN201558317U (en) * | 2009-11-04 | 2010-08-25 | 任秀云 | Quick drug dissolving machine |
| CN205731085U (en) * | 2016-07-14 | 2016-11-30 | 无锡市第二人民医院 | It is applied to the automatic oscillating uniform device of novopen |
| CN206603989U (en) * | 2016-09-30 | 2017-11-03 | 广州昕生医学材料有限公司 | Stir hybrid injection device |
| CN208130221U (en) * | 2017-12-18 | 2018-11-23 | 南通市中医院 | A kind of syringe with crushing function |
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| CN110251778A (en) * | 2019-06-26 | 2019-09-20 | 赵杰 | A kind of Internal Medicine-Oncology drug delivery device |
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| Publication number | Publication date |
|---|---|
| CN111840704A (en) | 2020-10-30 |
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