CN112472921B - Improved plastic medicine injector - Google Patents
Improved plastic medicine injector Download PDFInfo
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- CN112472921B CN112472921B CN202011471682.6A CN202011471682A CN112472921B CN 112472921 B CN112472921 B CN 112472921B CN 202011471682 A CN202011471682 A CN 202011471682A CN 112472921 B CN112472921 B CN 112472921B
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- push rod
- medicine
- rack
- injection tube
- auxiliary push
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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
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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
- A61M5/3129—Syringe barrels
-
- 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
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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
- 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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
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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
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
- B01F35/31—Couplings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
- B01F35/32—Driving arrangements
- B01F35/32005—Type of drive
- B01F35/3202—Hand driven
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/713—Feed mechanisms comprising breaking packages or parts thereof, e.g. piercing or opening sealing elements between compartments or cartridges
- B01F35/7131—Breaking or perforating packages, containers or vials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/22—Mixing of ingredients for pharmaceutical or medical compositions
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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)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The embodiment of the invention discloses an improved plastic medicine injector, wherein a piston device is coaxially arranged in an injection tube, a first rack is arranged on the inner wall of the rear end of the injection tube along the length direction of the injection tube, mounting grooves are symmetrically formed in the injection tube on two sides of the first rack, a driving wheel is arranged above the piston device, two ends of the driving wheel are rotatably arranged in the mounting grooves in a penetrating mode, driving teeth are arranged on the driving wheel, an adjusting device is arranged in the mounting grooves, and the adjusting device is in transmission connection with the piston device. Through improving syringe piston and injection tube among the prior art, increased simultaneously and mixed medicine mechanism, the cooperation of accessible main push rod, vice push rod, drive wheel and first rack can realize accurate liquid medicine and impel, can drive vice push rod through pushing down the drive wheel simultaneously and impel forward and make the liquid medicine in the storage medicine storehouse flow, realizes the mixture of liquid medicine, can realize that a syringe bears multiple liquid medicine. The invention has novel structural design, convenient and efficient use, greatly improves the working efficiency and relieves the pain of patients.
Description
Technical Field
The embodiment of the invention relates to the technical field of medicine injection, in particular to an improved plastic medicine injector.
Background
The advent of syringes is an epoch-making revolution in the field of medical devices. This process of drawing, injecting gas or liquid with a needle is called injection. The injector consists of a syringe with a small hole at the front end and a matched piston core rod, and is used for injecting a small amount of liquid or extracting the liquid or the liquid from the inaccessible area by other methods, wherein the liquid or gas is sucked from the small hole at the front end of the syringe when the core rod is pulled out, and the liquid or gas is extruded when the core rod is pushed in. As a common medical consumable, the injector is developed and widely applied due to the convenient and fast use.
Similarly, the injector is also used in the field of medical cosmetology, and can inject related medicines into corresponding parts of a human body, thereby being beneficial to the implementation of plastic cosmetology. However, in the prior art, two or more kinds of injection liquids are generally used, and the liquids cannot be mixed before injection, but need to be mixed when injected into a human body, so that a separate syringe is required to contain different liquid medicines when the liquids are injected. The injector is wasted, particularly, the dosage of some liquid medicines is small, the injection is difficult, the patient is painful when the injector is inserted into a human body for many times, and the drug effect is greatly reduced due to inconsistent injection positions for many times.
Therefore, how to provide an improved plastic drug injector aiming at realizing the effect of injecting a plurality of drugs by one injector is a technical problem to be solved urgently by the technical personnel in the field.
Disclosure of Invention
To this end, embodiments of the present invention provide an improved plastic drug injector to solve the related technical problems in the prior art.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:
the improved plastic medicine injector comprises an injection tube, a piston device, a first rack, a driving wheel, an adjusting device and mounting grooves, wherein the piston device is coaxially arranged in the injection tube, the inner wall of the rear end of the injection tube is provided with the first rack along the length direction of the injection tube, the mounting grooves are symmetrically formed in the injection tube on two sides of the first rack, the driving wheel is arranged above the piston device, two ends of the driving wheel are rotatably arranged in the mounting grooves in a penetrating mode, the driving wheel is provided with driving teeth, the adjusting device is arranged in the mounting grooves, and the adjusting device is in transmission connection with the piston device.
Further, the piston device comprises a main push rod, an auxiliary push rod, a second rack, a third rack, a fourth rack, a fifth rack, a pressure head, a piston head and a medicine mixing mechanism, a piston head is arranged in the injection tube, the medicine mixing mechanism is arranged at the front end of the piston head, the main push rod and the auxiliary push rod are arranged at the rear end of the piston head, the main push rod is arranged between the auxiliary push rod and the first rack, the auxiliary push rod is arranged on the central axis of the injection tube, the second rack is arranged at the lower end of the main push rod along the length direction of the main push rod, the second rack is matched with the first rack, the third rack is arranged at the upper end of the main push rod along the length direction of the main push rod, the fourth rack is arranged at the lower end of the auxiliary push rod along the length direction of the auxiliary push rod, the fourth rack is matched with the third rack, the fifth rack is arranged at the upper end of the auxiliary push rod along the length direction of the auxiliary push rod, and the fifth rack is matched with the transmission teeth on the transmission wheel, and the end part of the main push rod is also provided with a pressure head.
Further, mix medicine mechanism and include storage medicine storehouse, medicine outlet, shutoff cap, edge and cross the medicine passageway, storage medicine storehouse is located the piston head front end, storage medicine storehouse front end center is equipped with the medicine outlet, the vice push rod front end passes the piston head stretches into storage medicine storehouse, the tip is equipped with the shutoff cap before the vice push rod, the shutoff cap is stifled to be established on the medicine outlet, the shutoff cap rear end be equipped with a plurality of edges on the vice push rod, it is a plurality of the edge evenly sets up, form the medicine passageway between the edge.
Further, still including storing up medicine intermediate layer and barb, storage medicine storehouse front end still is equipped with stores up the medicine intermediate layer, store up medicine intermediate layer and go out medicine mouth parallel and level, the shutoff cap becomes the frustum type, shutoff cap rear end edge is equipped with the barb.
Further, adjusting device includes briquetting, upper strut, lower branch, elasticity pin joint, sticks up handle, bulb, first slide and second slide, vice push rod both sides are equipped with the first slide along its length direction, the main push rod both sides are equipped with the second slide along its length direction, upper strut and lower branch distal end all are equipped with the bulb, the bulb slides respectively and locates in first slide and the second slide, upper strut and lower branch near-end all are equipped with sticks up the handle, two it is equipped with the elasticity pin joint to stick up between the handle, it is equipped with the briquetting to stick up the handle upper end, the contact of briquetting upper end the drive wheel.
The embodiment of the invention has the following advantages:
through improving syringe piston and injection tube among the prior art, increased simultaneously and mixed medicine mechanism, the cooperation of accessible main push rod, vice push rod, drive wheel and first rack can realize accurate liquid medicine and impel, can drive vice push rod through pushing down the drive wheel simultaneously and impel forward and make the liquid medicine in the storage drug bin flow, realizes the mixture of liquid medicine, has improved the practicality of syringe, can realize that a syringe bears multiple liquid medicine. The invention has novel structural design, convenient and efficient use, greatly improves the working efficiency and relieves the pain of patients.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.
FIG. 1 is a schematic view of an improved orthopaedic medication injector according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 according to an embodiment of the present invention;
FIG. 3 is a schematic position diagram of the main push rod, the auxiliary push rod, the first rack and the transmission wheel according to the embodiment of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3A according to an embodiment of the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 3 at B in accordance with an embodiment of the present invention;
in the figure:
1, an injection cylinder; 2 a piston device; 201 a main push rod; 202 an auxiliary push rod; 203 a second rack; 204 a third rack; 205 a fourth rack; 206 fifth rack; 207 a pressure head; 208 a piston head; 209 a drug mixing mechanism; 2091 a medicine storage bin; 2092 a medicine outlet; 2093 a plugging cap; 2094 edges; 2095 a drug-passing channel; 3 a first rack; 4, a driving wheel; 5, adjusting the device; 501, briquetting; 502, supporting the rod; 503 lower support rods; 504 an elastic hinge point; 505 raising the handle; 506 a ball head; 507 a first slideway; 508 a second slide; 6, mounting a groove; 7, a medicine storage interlayer; 8 barbs.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. 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.
In order to solve the related technical problems existing in the prior art, the embodiment of the application provides an improved plastic medicine injector, aiming at realizing that one injector bears multiple kinds of liquid medicines, the injection of the multiple liquid medicines is realized only through one-time needle insertion, meanwhile, the precise injection and medicine mixing of the multiple liquid medicines are realized through the improvement of the piston device 2, the working efficiency of the medical beauty process is improved, and the pain of a patient caused by multiple injections is relieved.
Referring to fig. 1-5, the present application specifically comprises a syringe 1, a piston device 2, a first rack 3, a transmission wheel 4, an adjustment device 5 and a mounting slot 6. In this embodiment, an injection tube 1 of a plastic injector in the prior art is used as a material, wherein a piston device 2 is coaxially arranged in the injection tube 1, and the injection of the liquid medicine is realized through the piston device 2. The inner wall of the rear end of the injection tube 1 is provided with a first rack 3 along the length direction of the injection tube, the first rack 3 and the injection tube 1 are integrally formed, the stability of the first rack 3 is improved, the length of the first rack 3 is about one fifth of the length of the injection tube 1, so that the injection process is not influenced, and the first rack 3 only plays a role in limiting the pushing position of the piston device 2 when in use. Mounting grooves 6 are symmetrically formed in the injection tube 1 on two sides of the first rack 3, in this embodiment, the mounting grooves 6 are vertically arranged, a driving wheel 4 is arranged above the piston device 2, specifically, two ends of the driving wheel 4 are rotatably arranged in the mounting grooves 6 in a penetrating manner, and driving teeth are arranged on the driving wheel 4, wherein the driving teeth on the driving wheel 4 are used for being matched with the piston device 2 for transmission. An adjusting device 5 is arranged in the mounting groove 6, the adjusting device 5 is in transmission connection with the piston device 2, and meanwhile, in the lifting process of the driving wheel 4, transmission is achieved with the adjusting device 5, and transmission of the adjusting device 5 and the piston device 2 is further achieved.
In this embodiment, control of the liquid medicine advancing and mixing process is achieved. Further, the piston device 2 comprises a main push rod 201, an auxiliary push rod 202, a second rack 203, a third rack 204, a fourth rack 205, a fifth rack 206, a pressure head 207, a piston head 208 and a medicine mixing mechanism 209. The syringe 1 is internally provided with a piston head 208, 1 item of liquid medicine is arranged between the piston head 208 and the syringe 1, the piston head 208 adopts a piston head 208 structure in the prior art, the front end of the piston head 208 is provided with a medicine mixing mechanism 209, the medicine mixing mechanism 209 is fixedly connected with the piston head 208, and at least 1 other item of liquid medicine is stored in the medicine mixing mechanism 209, so that the subsequent liquid medicine can be conveniently mixed. The rear end of the piston head 208 is provided with a main push rod 201 and an auxiliary push rod 202, wherein in the embodiment, the main push rod 201 is flat, the joint of the main push rod 201 and the piston head 208 is designed to be L-shaped, so that the main push rod 201 deviates from the central axis of the syringe 1, the joint of the auxiliary push rod 202 and the piston head 208 is cylindrical, and the auxiliary push rod 202 extends towards the other end and gradually becomes flat. The main push rod 201 is arranged between the auxiliary push rod 202 and the first rack 3, meanwhile, the main push rod 201, the auxiliary push rod 202 and the first rack 3 are arranged in parallel, and the auxiliary push rod 202 is arranged on the central axis of the injection tube 1, and the arrangement mode facilitates the forward pushing of the auxiliary push rod 202 to realize the medicine mixing of the medicine mixing mechanism 209 and the medicine liquid in the injection tube 1.
The lower end of the main push rod 201 is provided with a second rack 203 along the length direction of the main push rod, the second rack 203 is matched with the first rack 3, and when the main push rod 201 is used, the first rack 3 is fixedly arranged, so that when the main push rod 201 moves downwards to enable the second rack 203 to be in contact with the first rack 3, the position of the main push rod 201 is fixed, the piston head 208 cannot be pushed to move forwards, and the auxiliary push rod 202 can conveniently act. The upper end of the main push rod 201 is provided with a third rack 204 along the length direction thereof, and in this embodiment, the second rack 203 and the third rack 204 are fixedly arranged with the main push rod 201. The lower end of the auxiliary push rod 202 is provided with a fourth rack 205 along the length direction thereof, the fourth rack 205 is matched with the third rack 204, when the main push rod 201 and the auxiliary push rod 202 are contacted with each other, the third rack 204 and the fourth rack 205 are in transmission connection with each other, so that the main push rod 201 and the auxiliary push rod 202 move simultaneously, and therefore, the advance liquid medicine mixing caused by asynchronous movement of the main push rod 201 and the auxiliary push rod 202 can be prevented; when the main push rod 201 and the auxiliary push rod 202 are separated from each other, the third rack 204 and the fourth rack 205 are separated from each other, so that the main push rod 201 and the auxiliary push rod 202 are not necessarily synchronous any more, and thus when the main push rod 201 does not move, the auxiliary push rod 202 can also move, and the auxiliary push rod 202 drives the medicine mixing mechanism 209 to act, so that medicine mixing is realized. The upper end of the secondary push rod 202 is provided with a fifth rack 206 along the length direction thereof, and in this embodiment, the fourth rack 205 and the fifth rack 206 are both fixedly connected with the secondary push rod 202. The fifth rack 206 is engaged with the driving teeth of the driving wheel 4, so that, in use, when the auxiliary push rod 202 contacts with the driving wheel 4, the driving wheel 4 drives the auxiliary push rod 202 to move back and forth, and when the auxiliary push rod 202 is separated from the driving wheel 4, the driving wheel 4 does not drive the auxiliary push rod 202 any more. The end of the main push rod 201 is further provided with a pressure head 207, and the pressure head 207 is manually pushed, so that the main push rod 201 can drive the piston head 208 to move forwards to inject liquid medicine.
Based on the structure, when the medicine mixing device is used, the pressing head 207 is pushed manually to drive the main push rod 201 to move forwards, the main push rod 201 drives the piston head 208 to move forwards to push the medicine liquid to be injected, the driving wheel 4 can drive the auxiliary push rod 202 to move forwards and backwards, and the auxiliary push rod 202 further drives the medicine mixing mechanism 209 to act to realize the medicine mixing process.
In order to realize accurate control of the medicine mixing process, the medicine mixing mechanism 209 further includes a medicine storage bin 2091, a medicine outlet 2092, a plugging cap 2093, an edge 2094 and a medicine passing channel 2095. The medicine storage bin 2091 is arranged at the front end of the piston head 208 and fixedly connected with the piston head 208, and preferably, the medicine storage bin 2091 is made of the same rubber material as the piston head 208. Medicine storage silo 2091 front end center is equipped with out medicine mouth 2092, and the liquid medicine can flow out and the liquid medicine mixes in the injection tube 1 from a medicine mouth 2092 in the medicine storage silo 2091. The front end of the auxiliary push rod 202 penetrates through the piston head 208 and extends into the medicine storage bin 2091, the front end of the auxiliary push rod 202 is provided with a blocking cap 2093, the blocking cap 2093 is blocked on the medicine outlet 2092, and meanwhile, the auxiliary push rod 202 can drive the blocking cap 2093 to move on the medicine outlet 2092, so that the medicine outlet 2092 can be opened or closed. A plurality of edges 2094 are arranged on the auxiliary push rod 202 at the rear end of the plugging cap 2093, when the plugging cap 2093 penetrates out of the medicine outlet 2092, the edges 2094 are uniformly arranged, a gap is formed between the edges 2094 and the edges of the medicine outlet 2092, namely a medicine passing channel 2095 is formed between the edges 2094, and medicine liquid can directly flow out of the medicine storage bin 2091 to the inside of the injection cylinder 1 through the medicine passing channel 2095.
When 3 kinds of liquid medicines need to be injected, the improvement on the structure is needed. Further, a medicine storage interlayer 7 and a barb 8 are also included. Store up medicine storehouse 2091 front end and still be equipped with storage medicine intermediate layer 7, it is preferred, storage medicine intermediate layer 7's material is the same with storage medicine storehouse 2091, and storage medicine storehouse 2091's outside is as storage medicine intermediate layer 7's inboard, and the third kind liquid medicine is then stored in storage medicine intermediate layer 7 and storage medicine storehouse 2091 outer wall between regional, simultaneously, storage medicine intermediate layer 7 and play medicine mouth 2092 parallel and level for the third kind liquid medicine is sealed in storage medicine intermediate layer 7 kinds when initial condition. In this embodiment, further, the plugging cap 2093 is tapered, and the size of the medicine outlet 2092 is smaller than the maximum diameter of the tapered shape, so that after the plugging cap 2093 extends out of the medicine outlet 2092, the liquid medicine in the medicine storage bin 2091 flows out of the medicine passing passage 2095 formed between the medicine outlet 2092 and the edge 2094. In order to make the liquid medicine in the medicine storage interlayer 7 flow out, further, the rear end edge of the plugging cap 2093 is provided with a barb 8, so that when the medicine storage interlayer 7 is used, the plugging cap 2093 is driven by the auxiliary push rod 202 to move backwards, the plugging cap 2093 drives the barb 8 to move backwards to puncture the medicine storage interlayer 7, and the third liquid medicine flows out from the medicine storage interlayer 7 and is mixed with the liquid medicine in the injection tube 1.
In this embodiment, the upper part of the adjusting device 5 is in transmission with the transmission wheel 4, while the lower part is in transmission with the main push rod 201 and the auxiliary push rod 202. Specifically, the adjusting device 5 includes a pressing block 501, an upper support rod 502, a lower support rod 503, an elastic hinge point 504, a tilted handle 505, a ball 506, a first slide way 507, and a second slide way 508. First slide ways 507 are arranged on two sides of the auxiliary push rod 202 along the length direction of the auxiliary push rod, second slide ways 508 are arranged on two sides of the main push rod 201 along the length direction of the main push rod, ball heads 506 are arranged at the far ends of the upper supporting rod 502 and the lower supporting rod 503, the upper supporting rod 502 is arranged in an upward inclined mode towards the first slide ways 507, and the lower supporting rod 503 is arranged in a downward inclined mode towards the second slide ways 508. The ball 506 is respectively arranged in the first slide way 507 and the second slide way 508 in a sliding manner, so that when the ball is used, the transverse position of the ball 506 is not moved, and the auxiliary push rod 202 and the main push rod 201 are respectively provided with the first slide way 507 and the second slide way 508, so that the ball can slide along the ball 506. The proximal ends of the upper supporting rod 502 and the lower supporting rod 503 are both provided with a tilted handle 505, an elastic hinge point 504 is arranged between the two tilted handles 505, and preferably, the hinge rod is provided with a torsion spring, so that the tilted handle 505 has resilience after being compressed. In a natural state, the upper support rod 502 and the lower support rod 503 are in a state of approaching to each other, so that the third rack 204 of the main push rod 201 and the fourth rack 205 of the sub push rod 202 are in transmission connection with each other, and the two opposite cocking handles 505 are in a state of warping when moving away from each other. The upper end of the tilting handle 505 is provided with a pressing block 501, the upper end of the pressing block 501 contacts the driving wheel 4, when the driving wheel 4 is manually pressed down, the driving wheel 4 further presses down the tilting handle 505, so that the tilting handle 505 drives the upper supporting rod 502 and the lower supporting rod 503 to be separated from each other by taking the elastic hinge point 504 as a fulcrum, the auxiliary push rod 202 is in transmission connection with the driving wheel 4, and the main push rod 201 is in transmission connection with the first rack 3. Therefore, in this embodiment, the adjusting device 5 composed of the upper support rod 502, the lower support rod 503, and the like can adjust the connection relationship between the main push rod 201 and the sub push rod 202. It should be noted that, the first slideway 507 and the second slideway 508 both have a certain depth, so that when the upper supporting rod 502 and the lower supporting rod 503 are at different inclination angles, the ball 506 is always located in the first slideway 507 and the second slideway 508, thereby playing a guiding role.
The application process of the embodiment of the invention is as follows:
in the initial state, the two kinds of liquid medicines are respectively sealed in the medicine storage interlayer 7 and the medicine storage bin 2091, and the specific filling or sealing process does not belong to the protection scope of the present invention, and is not described herein again. Further manually pulling the ram 207 makes the main push rod 201 drive the piston head 208 backwards, so that the third liquid medicine enters into the area between the syringe 1 and the piston head 208.
In a natural state, the main push rod 201 and the sub push rod 202 are connected through the third rack 204 and the fourth rack 205, the second rack 203 of the main push rod 201 is not connected with the first rack 3, and the fifth rack 206 is not connected with the transmission wheel 4. The main push rod 201 drives the piston head 208 to extrude the liquid medicine from the syringe 1 into the human body by manually extruding the pressure head 207. When two kinds of liquid medicine need to be mixed, the transmission wheel 4 is manually pressed downwards, two ends of the transmission wheel 4 downwards press the tilting handle 505 through the pressing block 501, so that the tilting handle 505 drives the upper support rod 502 and the lower support rod 503 to be separated by taking the elastic hinge point 504 as a fulcrum, the main push rod 201 downwards moves under the driving of the lower support rod 503, the second rack 203 at the lower end of the main push rod 201 is connected with the first rack 3, the main push rod 201 is fixed, the auxiliary push rod 202 upwards moves under the driving of the upper support rod 502, and the fifth rack 206 at the upper end of the auxiliary push rod 202 is in transmission connection with the transmission wheel 4. The driving wheel 4 is manually rotated, the driving wheel 4 drives the auxiliary push rod 202 to move towards the piston head 208, and further the auxiliary push rod 202 drives the plugging cap 2093 to penetrate out of the medicine outlet 2092, so that the medicine liquid plugged in the medicine storage bin 2091 flows out through the medicine passing channel 2095 between the medicine outlet 2092 and the edge 2094 to be mixed with the medicine liquid in the syringe 1.
When three kinds of liquid medicine need to be mixed, the driving wheel 4 is rotated manually to rotate reversely, the driving wheel 4 drives the auxiliary push rod 202 to move towards the direction far away from the piston head 208, the auxiliary push rod 202 further drives the plugging cap 2093 to move backwards, the barb 8 on the plugging cap 2093 punctures the medicine storage interlayer 7 in the backward moving process, and the liquid medicine flows outwards to be mixed with the liquid medicine in the injection tube 1. Further, the main push rod 201 drives the piston head 208 to extrude the liquid medicine from the syringe 1 into the human body by extruding the pressure head 207.
Through improving syringe piston and injection cylinder 1 among the prior art, increased simultaneously and mixed medicine mechanism 209, accessible main push rod 201, vice push rod 202, the cooperation of drive wheel 4 and first rack 3, can realize accurate liquid medicine and impel, can drive vice push rod 202 through pushing down drive wheel 4 simultaneously and impel forward and make the liquid medicine in the storage medicine storehouse 2091 flow, realize the mixture of liquid medicine, the practicality of syringe has been improved, can realize that a syringe bears multiple liquid medicine. The invention has novel structural design, convenient and efficient use, greatly improves the working efficiency and relieves the pain of patients.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (2)
1. An improved plastic medicine injector is characterized by comprising an injection tube, a piston device, a first rack, a driving wheel, an adjusting device and mounting grooves, wherein the piston device is coaxially arranged in the injection tube, the inner wall of the rear end of the injection tube is provided with the first rack along the length direction of the injection tube, the mounting grooves are symmetrically formed in the injection tube on two sides of the first rack, the driving wheel is arranged above the piston device, two ends of the driving wheel are rotatably arranged in the mounting grooves in a penetrating mode, driving teeth are arranged on the driving wheel, the adjusting device is arranged in the mounting grooves, and the adjusting device is in transmission connection with the piston device;
the piston device comprises a main push rod, an auxiliary push rod, a second rack, a third rack, a fourth rack, a fifth rack, a pressure head, a piston head and a medicine mixing mechanism, the piston head is arranged in the injection tube, the medicine mixing mechanism is arranged at the front end of the piston head, the main push rod and the auxiliary push rod are arranged at the rear end of the piston head, the main push rod is arranged between the auxiliary push rod and the first rack, the auxiliary push rod is arranged on the central axis of the injection tube, the second rack is arranged at the lower end of the main push rod along the length direction of the main push rod and is matched with the first rack, the third rack is arranged at the upper end of the main push rod along the length direction of the main push rod, the fourth rack is arranged at the lower end of the auxiliary push rod along the length direction of the auxiliary push rod and is matched with the third rack, the fifth rack is arranged at the upper end of the auxiliary push rod along the length direction of the auxiliary push rod and is matched with the transmission teeth on the transmission wheel, the end part of the main push rod is also provided with a pressure head;
the medicine mixing mechanism comprises a medicine storage bin, a medicine outlet, a plugging cap, edges and a medicine passing channel, the medicine storage bin is arranged at the front end of a piston head, the medicine outlet is formed in the center of the front end of the medicine storage bin, the front end of an auxiliary push rod penetrates through the piston head and extends into the medicine storage bin, the plugging cap is arranged at the front end of the auxiliary push rod, the plugging cap is plugged on the medicine outlet, a plurality of edges are arranged on the auxiliary push rod at the rear end of the plugging cap, the edges are uniformly arranged, and the medicine passing channel is formed between the edges;
still including storing up medicine intermediate layer and barb, it still is equipped with the medicine intermediate layer to store up medicine storehouse front end, store up medicine intermediate layer and go out medicine mouth parallel and level, the shutoff cap becomes the frustum type, shutoff cap rear end edge is equipped with the barb.
2. The improved plastic medicine injector as claimed in claim 1, wherein the adjusting device comprises a pressing block, an upper supporting rod, a lower supporting rod, an elastic hinge point, a tilting handle, a ball head, a first slide way and a second slide way, the first slide way is arranged on two sides of the auxiliary push rod along the length direction of the auxiliary push rod, the second slide way is arranged on two sides of the main push rod along the length direction of the auxiliary push rod, the ball head is arranged on the far end of each of the upper supporting rod and the lower supporting rod, the ball heads are respectively arranged in the first slide way and the second slide way in a sliding manner, the tilting handle is arranged on the near end of each of the upper supporting rod and the lower supporting rod, the elastic hinge point is arranged between the two tilting handles, the pressing block is arranged on the upper end of the tilting handle, and the upper end of the pressing block is in contact with the driving wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011471682.6A CN112472921B (en) | 2020-12-14 | 2020-12-14 | Improved plastic medicine injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011471682.6A CN112472921B (en) | 2020-12-14 | 2020-12-14 | Improved plastic medicine injector |
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| Publication Number | Publication Date |
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| CN112472921A CN112472921A (en) | 2021-03-12 |
| CN112472921B true CN112472921B (en) | 2022-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011471682.6A Active CN112472921B (en) | 2020-12-14 | 2020-12-14 | Improved plastic medicine injector |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113384460A (en) * | 2021-07-08 | 2021-09-14 | 卢欣 | Single-hand suction and injection device |
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| CN101932350A (en) * | 2008-01-28 | 2010-12-29 | Shl集团有限责任公司 | Injector with thumb operable scroll wheel |
| CN106535966A (en) * | 2014-05-23 | 2017-03-22 | 阿库尼特有限责任公司 | Handheld medical substance dispensing system, apparatus and methods |
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| CN109701117A (en) * | 2019-03-08 | 2019-05-03 | 江苏伊凯医疗器械有限公司 | A kind of syringe fixed quanting pushing device |
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| CN205073428U (en) * | 2015-10-16 | 2016-03-09 | 霍桂芝 | Injector |
| CN108325030A (en) * | 2018-04-23 | 2018-07-27 | 吉林大学 | A kind of anti-particle syringe of rotation advance and retreat formula |
| US10391253B1 (en) * | 2018-06-19 | 2019-08-27 | Innomed Technologies, Inc. | Precision low-dose, low-waste syringes and ergonomic attachments therefor |
| CN209123081U (en) * | 2018-07-30 | 2019-07-19 | 新疆医科大学 | A kind of controllable medical syringe |
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|---|---|---|---|---|
| CN101932350A (en) * | 2008-01-28 | 2010-12-29 | Shl集团有限责任公司 | Injector with thumb operable scroll wheel |
| CN106535966A (en) * | 2014-05-23 | 2017-03-22 | 阿库尼特有限责任公司 | Handheld medical substance dispensing system, apparatus and methods |
| CN108421131A (en) * | 2018-04-08 | 2018-08-21 | 复旦大学附属眼耳鼻喉科医院 | A kind of roller type multi injector |
| CN110464913A (en) * | 2018-05-13 | 2019-11-19 | 柳州玲通科技有限责任公司 | A kind of medical treatment anesthetic injecting device |
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| CN112472921A (en) | 2021-03-12 |
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