CN110934745B - Safe and rapid medicine preparation injector - Google Patents
Safe and rapid medicine preparation injector Download PDFInfo
- Publication number
- CN110934745B CN110934745B CN201911337091.7A CN201911337091A CN110934745B CN 110934745 B CN110934745 B CN 110934745B CN 201911337091 A CN201911337091 A CN 201911337091A CN 110934745 B CN110934745 B CN 110934745B
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- piston
- cavity
- storage bottle
- plug
- medicine storage
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- 239000003814 drug Substances 0.000 title claims abstract description 123
- 238000002360 preparation method Methods 0.000 title claims description 14
- 239000007924 injection Substances 0.000 claims abstract description 70
- 238000002347 injection Methods 0.000 claims abstract description 70
- 229940079593 drug Drugs 0.000 claims description 28
- 239000000741 silica gel Substances 0.000 claims description 15
- 229910002027 silica gel Inorganic materials 0.000 claims description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 14
- 230000000903 blocking effect Effects 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 239000007788 liquid Substances 0.000 abstract description 30
- 239000000843 powder Substances 0.000 abstract description 13
- 239000000243 solution Substances 0.000 description 9
- 229920001296 polysiloxane Polymers 0.000 description 7
- 238000000926 separation method Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000000203 mixture Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002504 physiological saline solution Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
- A61J1/14—Details; Accessories therefor
- A61J1/20—Arrangements for transferring or mixing fluids, e.g. from vial to syringe
- A61J1/2003—Accessories used in combination with means for transfer or mixing of fluids, e.g. for activating fluid flow, separating fluids, filtering fluid or venting
- A61J1/2006—Piercing means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
- A61J1/14—Details; Accessories therefor
- A61J1/20—Arrangements for transferring or mixing fluids, e.g. from vial to syringe
- A61J1/2096—Combination of a vial and a syringe for transferring or mixing their contents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
- A61J1/14—Details; Accessories therefor
- A61J1/20—Arrangements for transferring or mixing fluids, e.g. from vial to syringe
- A61J1/22—Arrangements for transferring or mixing fluids, e.g. from vial to syringe with means for metering the amount of fluid
Landscapes
- Health & Medical Sciences (AREA)
- Pharmacology & Pharmacy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
Abstract
The invention provides a safe and rapid medicine configuration injector, which comprises an injection part, a piston part, a sharp part and a medicine storage bottle, wherein the piston end is inserted into the injection part from a second opening on the injection part and forms a sealed first cavity with the injection part, a sealed second cavity is formed on the medicine storage bottle through a plug, the sharp part comprises a hollow tube with a sharp head, the piercing part is used for piercing the piston and/or the plug to communicate the first cavity with the second cavity, required liquid medicine and powder are respectively filled in the injection part and the medicine storage part of the injector, the medicine storage bottle is directly pushed to communicate the first cavity with the second cavity through the sharp part when the injector is used, so that the respectively stored liquid medicine and powder are mixed, the step of mixing the liquid medicine in the medicine injection of the liquid medicine into the powder by using the injector when the medicine is configured is reduced, the configuration speed of the medicine is improved, more time is saved when the first aid is carried out, so that the first aid work is easier to carry out, and more lives can be saved.
Description
Technical Field
The invention relates to the technical field of safe and quick drug configuration injectors, in particular to a safe and quick drug configuration injector.
Background
In the traditional injection process, a syringe is used for extracting a solvent (injection water), then a syringe needle is pricked into a solute bottle (powder injection or water injection), then the solvent is pushed out to be mixed and dissolved with the solute, and finally the mixed liquid medicine is extracted into the syringe to inject a human body or add medicine into an infusion bottle. The operation method has complicated procedures, large labor capacity of nurses, time waste because the liquid medicine needs to be transferred for several times, and error and other conditions are easy to cause in the process of confusion. In case of war or some scenes needing first aid, especially in high-intensity battle, in order to compete for life with dead spirit, it is necessary to shorten the treatment time as much as possible, so that it is urgent to increase the drug allocation speed and reduce the labor capacity of medical staff.
Disclosure of Invention
In view of the above, the present invention provides a safe and fast drug dispensing syringe, which is used to solve the problem of fast drug dispensing in emergency treatment, increase the drug dispensing speed in emergency treatment, reduce the labor of medical staff, and save time.
The invention solves the technical problems by the following technical means: the invention provides a safe and rapid medicine configuration injector which comprises an injection part, a piston part, a sharp-pointed part and a medicine storage bottle, wherein the injection part, the piston part and the medicine storage bottle are all in a cylinder shape with one open end and the other closed end, the piston part comprises a piston end and a hollow column end, one end of the column end is connected with the piston end, the other end of the column end is a first opening, the piston end is inserted into the injection part from a second opening on the injection part and forms a sealed first cavity with the injection part, the outer wall of a third opening on the medicine storage bottle is matched with the inner wall of the column end and can move in the column end along the axis direction of the column end, the third opening on the medicine storage bottle is also provided with a plug which is inserted into a third opening on the medicine storage bottle, a closed second cavity is formed on the medicine storage bottle through the plug, the sharp-pointed part comprises a hollow tube with a sharp head, and the sharp-pointed part is arranged in the column end, the device comprises a piston, a plug, a sharp-pointed part, a needle seat, a silica gel rod, a through hole, a separation blade and a separation blade, wherein the sharp-pointed part is arranged between the piston and the plug, the sharp-pointed part is used for penetrating the piston to communicate a first cavity with a second cavity, the injection part is further provided with the needle seat, the needle seat is arranged on the outer wall of the closed end of the injection part, the needle seat is hollow and is communicated with the first cavity, one end of the sharp-pointed part is provided with the sharp head, the other end of the sharp-pointed part is arranged on the plug and is communicated with the second cavity, the sharp-pointed end is further provided with the silica gel rod, the silica gel rod is sleeved on the sharp head and is used for sealing the through hole of the sharp-pointed part, the piston is far away from the plug and is provided with the separation blade, the center of the separation blade coincides with the center of the sharp-pointed part, and one side of the separation blade is fixed on the piston and can swing on the piston.
Furthermore, the blocking piece is rigid and is attached to the piston when not subjected to external force, and the sharp head pushes the blocking piece to be pushed away after penetrating the piston.
Further, the axis of the needle head seat is coincident with the axis of the spike part, and the diameter of the inner hole of the needle head seat is larger than that of the outer wall of the spike.
Furthermore, the outer wall of the periphery of the needle head seat is provided with threads for being connected with a syringe needle, and the end part of the needle head seat far away from one end of the injection part is provided with a seal head for sealing the needle head seat and the first cavity.
Further, the inner wall of the column end is provided with threads, the outer wall of the third opening end on the medicine storage bottle is provided with threads matched with the inner wall of the column end, and the medicine storage bottle is screwed into the column end to abut against the sharp-pointed part, so that the sharp-pointed part pierces the piston and/or the plug to communicate the first cavity with the second cavity.
According to the technical scheme, the invention has the beneficial effects that: the invention provides a safe and rapid medicine configuration injector which comprises an injection part, a piston part, a sharp-pointed part and a medicine storage bottle, wherein the injection part, the piston part and the medicine storage bottle are all in a cylinder shape with one open end and the other closed end, the piston part comprises a piston end and a hollow column end, one end of the column end is connected with the piston end, the other end of the column end is a first opening, the piston end is inserted into the injection part from a second opening on the injection part and forms a sealed first cavity with the injection part, the outer wall of a third opening on the medicine storage bottle is matched with the inner wall of the column end and can move in the column end along the axis direction of the column end, the third opening on the medicine storage bottle is also provided with a plug which is inserted into a third opening on the medicine storage bottle, a closed second cavity is formed on the medicine storage bottle through the plug, the sharp-pointed part comprises a hollow tube with a sharp head, and the sharp-pointed part is arranged in the column end, the injection part is provided with a needle head seat, the needle head seat is arranged on the outer wall of the closed end of the injection part, and the needle head seat is hollow and communicated with the first cavity. Through the liquid medicament and the powder branch dress that will need in the injection portion and the medicine storage portion of syringe, and set up spine portion between piston end and end cap, directly promote the medicine storage bottle when using and pass through spine portion intercommunication first cavity and second cavity, make the liquid key spare and the powder of storing respectively mix, then inject through promoting the piston, use the syringe to take out liquid medicament in the medicine bottle and carry out the step of mixing in injecting liquid medicament into the powder when having reduced the configuration medicine, the configuration speed of medicine has been improved, more time has been practiced thrift when carrying out the first aid, make first aid work go on more easily, can save more lives.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a sectional view of a safe and quick drug dispensing syringe according to an embodiment of the present invention;
FIG. 2 is a perspective view of a piston of the safe and quick drug dispensing syringe according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a safe and quick drug dispensing syringe configuration according to one embodiment of the present invention;
FIG. 4 is a perspective view of a drug storage portion of the safe and quick drug dispensing syringe according to a second embodiment of the present invention;
FIG. 5 is a sectional view of a safe and quick drug dispensing syringe according to a second embodiment of the present invention;
FIG. 6 is a sectional view of a second embodiment of the present invention illustrating a safety and quick drug dispensing syringe;
FIG. 7 is an exploded view of a safe and quick drug dispensing syringe according to a third embodiment of the present invention;
FIG. 8 is a sectional view of a safe and quick drug dispensing syringe according to a third embodiment of the present invention;
FIG. 9 is a sectional view of a safe and quick drug dispensing syringe according to a third embodiment of the present invention;
reference numerals: 1-an injection part; 2-a piston portion; 3-spine part; 4-a medicine storage bottle; 21-the piston end; 22-column end; 221-a first opening; 11-a second opening; 12-needle base; 13-a first cavity; 41-third opening; 42-plug; 43-a second cavity; 31-hollow tube; 32-pointed tip; 33-silica gel stick; 34-middle plate.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting of the present application. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art through specific situations.
In a first embodiment, referring to fig. 1 to 3, the present invention provides a safe and fast drug preparation syringe, including an injection part 1, a piston part 2, a spike part 3 and a drug storage bottle 4, where the injection part 1, the piston part 2 and the drug storage bottle 4 are all in a cylinder shape with one open end and the other closed end, the piston part 2 includes a piston end 21 and a hollow column end 22, one end of the column end 22 is connected to the piston end 21, and the other end is a first opening 221, the piston end 21 is inserted into the injection part 1 from a second opening 11 on the injection part 1 and forms a sealed first cavity 13 with an inner wall of the injection part 1, an outer wall of a third opening 41 end on the drug storage bottle 4 is adapted to the inner wall of the column end 22 and can move in the column end 22 along an axial direction of the column end 22, the third opening 41 end on the drug storage bottle 4 is further provided with a plug 42, the plug 42 is inserted into the third opening 41 on the drug storage bottle 4, a second closed cavity 43 is formed on the medicine storage bottle 4 through a plug 42, the spike part 3 comprises a hollow tube 31 containing a spike 32, the spike part 3 is arranged inside the column end 22, the spike part 3 is arranged between the piston and the plug 42, the spike part is used for puncturing the piston to communicate the first cavity 13 with the second cavity 43, a needle seat 12 is further arranged on the injection part 1, the needle seat 12 is arranged on the outer wall of the closed end of the injection part 1, and the needle seat 12 is hollow and is communicated with the first cavity 13. Preferably, a push plate is further disposed at an end of the medicine storage bottle 4 away from the third opening 41, and a support plate is further disposed on an outer wall of the injection part 1 at the position of the second opening 11, so as to facilitate pushing medicine by holding the injection part 1 during injection. Preferably, the piston end, the plug and the end enclosure are all made of silica gel. Preferably, the inner wall of the injection part is in a non-circular shape such as an oval shape or a square shape, the outer peripheral surface of the piston end is matched with the inner wall of the injection part, and the inner wall of the column end is cylindrical, so that the piston part cannot rotate along with the medicine storage bottle when the medicine storage bottle is screwed, and a sharp head can conveniently puncture the plug or the piston end.
As a further improvement of the technical scheme, one end of the spike part 3 is provided with a spike, and the other end of the spike part is arranged on the piston and penetrates through the piston to be communicated with the first cavity 13. One end of the spike part 3 is fixedly arranged on the piston and penetrates through the piston, so that the through hole in the spike part 3 can be communicated with the first cavity 13 to facilitate the passing of the liquid medicine, and the other end is provided with a spike to pierce the plug 42 on the medicine storage bottle 4 by using the spike, so that the first cavity 13 is communicated with the second cavity 43 to perform the mixing configuration of the medicines.
As a further improvement to the above technical solution, the tip end is further provided with a silica gel rod 33, and the silica gel rod 33 is sleeved on the tip and used for sealing the through hole of the spike part 3. The silica gel rod is sleeved on the spine part 3 and used for plugging the through hole on the spine part 3 to prevent the liquid medicine in the first cavity 13 from flowing out.
As a further improvement to the above technical solution, the outer wall of the circumferential surface of the needle base 12 is provided with threads for connecting with a syringe needle, and an end socket for sealing the needle base 12 and the first cavity 13 is provided at an end of the needle base 12 far from the injection part 1. Set up the screw thread on the outer wall of needle seat 12 and be used for being connected with the syringe needle and make to be connected more tightly and prevent that the syringe needle from dropping when injecting, set up the head at the tip of needle seat 12 and make first cavity 13 can be sealed totally and be convenient for store up the medicine and sealed, make first cavity 13 form the negative pressure after communicating first cavity 13 and second cavity 43 simultaneously and be convenient for dispose liquid and get into injection portion 1 from storage bottle 4.
As a further improvement to the above technical solution, the inner wall of the column end 22 is cylindrical and is provided with threads on the surface of the inner wall, the outer wall of the third opening 41 on the drug storage bottle 4 is cylindrical and is provided with threads matching with the inner wall of the column end 22, and the drug storage bottle 4 is screwed into the column end 22 to press the spike part 3, so that the spike part 3 pierces the piston and/or the plug 42 to communicate the first cavity 13 with the second cavity 43.
Firstly, a proper amount of liquid medicaments such as physiological saline or sugar water and the like are filled in a first cavity 13 of an injection part 1, a needle head seat 12 is blocked and sealed by a seal head, a piston is inserted into a second opening 11, the second opening 11 and a first opening 221 are sealed, then the sterile plastic outer package is placed for storage, powder medicaments to be prepared are filled in a medicament storage bottle 4, sealed by the seal head and then placed in the sterile plastic outer package for storage. Preferably, after the liquid medicament and the powder which are commonly used and matched with each other are respectively stored in the injection part 1 and the medicament storage part, the medicament storage part is inserted into the column end 22, the plug 42 is not contacted with the position of the silica gel rod 33, then the whole injector is sealed in the sterile plastic vacuum outer package, when in use, after the sterile vacuum plastic package is opened, the medicament bottle 4 is directly screwed and dumped, the tip penetrates through the plug 42, the first cavity 13 is communicated with the second cavity 43, and the liquid medicament is more rapidly and simply prepared. More time is saved during emergency treatment.
In use, the sterile plastic outer package is opened, the third opening 41 end of the medicine storage bottle 4 is inserted into the first opening 221, the medicine storage bottle 4 is screwed to the column end 22 until the sharp head pierces the silica gel rod 33 and the plug 42, so that the first cavity 13 and the second cavity 43 are communicated through the through hole in the sharp piercing part 3, preferably, a backing plate is arranged between the piston and the plug 42, the thickness of the backing plate is controlled, so that the sharp head just pierces the plug 42 when the medicine storage bottle 4 is completely screwed down, the silica gel rod 33 is prevented from being damaged by excessive screwing of the medicine storage bottle 4, then the piston is pushed towards one end of the syringe needle, so that the liquid in the injection part 1 passes through the through hole of the sharp piercing part under the action of pressure to enter the medicine storage bottle 4 and mix with the powder medicine in the medicine storage bottle 4 to form the preparation liquid, the piston is pulled out reversely after mixing is completed, so that the preparation liquid in the medicine storage bottle 4 enters the injection part 1 under the action of negative pressure, and after the preparation liquid completely enters the injection part 1, when the medicine storage bottle 4 is unscrewed to push the medicine storage bottle 4 out from the column end 22 until the sharp head of the sharp point part is completely withdrawn, so that the communication between the first cavity 13 and the second cavity 43 is interrupted, the silicone rod 33 on the sharp head rebounds under the elastic action and extrudes the sharp head outlet to seal the outlet position, so as to prevent the preparation liquid from flowing out from the sharp head position, preferably, a spring is added between the silicone rod 33 and the piston, the silicone rod 33 and the spring are compressed to expose the sharp head when the sharp head is inserted into the plug 42 so that the sharp head is inserted into the plug 42, and the spring rebounds to drive the silicone rod 33 to rebound after the sharp head is pulled out, so that the silicone rod 33 continues to sleeve the sharp head so as to seal the sharp head outlet. Then the seal head at the front end of the needle seat 12 is taken down to install the syringe needle for injection.
In the second embodiment, referring to fig. 4 to 6, one end of the spike portion 3 is provided with a spike, the other end of the spike portion is disposed on the plug 42 and communicated with the second cavity 43, the tip end is further provided with a silica gel rod 33, and the silica gel rod 33 is sleeved on the spike and used for sealing the through hole of the spike portion 3. The spike 3 is arranged on the plug 42 and communicated with the second cavity 43 through the plug 42, the spike end is suspended, and when in use, the spike pierces the piston so as to communicate the first cavity 13 with the second cavity 43. Preferably, the piston is made of silicon rubber, and after the sharp part 3 pulls out the piston, a gap pierced by the sharp point on the piston automatically closes to prevent the dispensing liquid from flowing out. The tip is provided with a silicone rod 33 for sealing the through hole of the spike part 3, and the silicone rod 33 is removed and the end of the third opening 41 is inserted into the column end 22 when the medicine is used.
As a further improvement to the above technical solution, a blocking piece is arranged on one surface of the piston away from the plug 42, the center of the blocking piece coincides with the center of the spike portion 3, and one side of the blocking piece is fixed on the piston and can swing on the piston. The blocking piece is rigid and is attached to the piston when not subjected to external force, and the sharp head pushes the blocking piece to be pushed away after penetrating the piston. The piston is provided with a baffle, the top end of the tip is abutted against the baffle after the tip pierces the piston to push the baffle open, so that the first cavity 13 is communicated with the second cavity through the through hole, after the tip is pulled out, the phenomenon that the injection flows out from a gap pierced by the tip on the piston due to too large pressure of the injection during injection is prevented, the gap is blocked by the baffle, and meanwhile, the baffle is tightly attached to the piston under the action of the pressure to prevent the outflow of the preparation liquid.
As a further improvement to the technical scheme, the axis of the needle seat 12 is coincident with the axis of the spike part, and the diameter of the inner hole of the needle seat 12 is larger than the diameter of the outer wall of the spike part. When injection is performed, the sharp head can be inserted into the inner hole of the needle seat 12 through the piston part 2, so that the piston moves to the bottom end of the injection part 1 to push the preparation liquid out completely for injection.
In the third embodiment, referring to fig. 7 to 9, the spine portion 3 further includes a middle plate 34, the hollow tube 31 penetrates through the middle plate 34 and is then fixedly disposed on the middle plate 34, both ends of the hollow tube 31 are pointed ends, the pointed ends are located at the ends of the middle plate 34, in use, the plug 42 and the piston are pierced respectively to put the first cavity 13 into communication with the second cavity 43, the peripheral surface of the intermediate plate 34 being adapted to the inner wall of the column end 22, and the intermediate plate 34 is slidably disposed in the hollow portion of the column end 22, the axis of the hollow tube 31 coincides with the axis of the column end 22, a matched buckle is arranged between the middle plate 34 and the plug 42, a chuck and a clamping seat of the buckle are respectively arranged on the middle plate and the plug, when the middle plate is contacted with the plug, the buckle is buckled, so that the middle plate is fixed on the plug, the middle plate 34 is buckled on the plug 42 through the buckle, such that when the plug 42 compresses the intermediate plate 34, the intermediate plate 34 is secured to the plug 42 by a snap fit. When the medicine storage bottle is not used, the spine part 3 is separated from the piston and the plug 42, so that the piston and the plug 42 can better seal the first cavity 13 and the second cavity 43, the medicine in the injection part 1 and the medicine in the medicine storage bottle 4 can be better stored in a sealing way, when the medicine storage bottle 4 is screwed on the piston part 2, the medicine storage bottle 4 is screwed and screwed, the piston and the plug 42 are punctured through sharp points at two ends of the middle plate 34, then the plug 42 is screwed continuously to be buckled with a buckle on the middle plate 34, the spine part 3 is fixed on the plug 42, the piston is pushed in the injection part 1, so that the liquid medicine in the injection part 1 enters the medicine storage bottle 4 and powder in the medicine storage bottle 4 to be mixed to form a preparation liquid, then the piston is pulled out, so that the preparation liquid enters the injection part 1 under the action of negative pressure, then the medicine storage bottle 4 is unscrewed, so that the spine part 3 is separated from the piston, and the communication between the first cavity 13 and the second cavity 43 is interrupted, so that the preparation solution stays in the injection part 1 for injection. During unscrewing of the storage bottle 4, the spike will exit the plunger following the storage bottle 4 because the intermediate plate 34 is fastened to the stopper 42.
Additionally, when powder medicament is stored in the injection part 1 and liquid medicament is stored in the medicament storage bottle 4, the piston part 2 is pushed to one end of the injection part 1 close to the needle head seat 12, the piston is pulled out after the medicament storage bottle 4 is inserted and the first cavity 13 and the second cavity 43 are communicated, so that the liquid medicament in the second cavity 43 enters the first cavity 13 and is mixed with the powder to form a preparation liquid under the action of negative pressure, then the medicament storage bottle 4 is unscrewed to disconnect the first cavity 13 and the second cavity, and then the seal head is removed to install the syringe needle for injection.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (4)
1. A safe and rapid medicine preparation injector, which is characterized in that: comprises an injection part (1), a piston part (2), a spine part (3) and a medicine storage bottle (4), wherein the injection part (1), the piston part (2) and the medicine storage bottle (4) are in a cylinder shape with one end open and the other end closed, the piston part (2) comprises a piston end (21) and a hollow column end (22), one end of the column end (22) is connected with the piston end (21), the other end of the column end (22) is a first opening (221), the piston end (21) is inserted into the injection part (1) from a second opening (11) on the injection part (1) and forms a sealed first cavity (13) with the injection part (1), the outer wall of a third opening (41) end on the medicine storage bottle (4) is matched with the inner wall of the column end (22) and can move along the axis direction of the column end (22) in the column end (22), and a plug (42) is further arranged at the third opening (41) end on the medicine storage bottle (4), the plug (42) is inserted into a third opening (41) on the medicine storage bottle (4), a closed second cavity (43) is formed on the medicine storage bottle (4) through the plug (42), the spine portion (3) comprises a hollow tube (31) containing a spine, the spine portion (3) is arranged in the column end (22), the spine portion (3) is arranged between the piston and the plug (42), the spine portion is used for penetrating the piston to communicate the first cavity (13) with the second cavity (43), a needle seat (12) is further arranged on the injection portion (1), the needle seat (12) is arranged on the outer wall of the closed end of the injection portion (1), the needle seat (12) is hollow and is communicated with the first cavity (13), one end of the spine portion (3) is provided with the spine, the other end of the spine portion is arranged on the plug (42) and is communicated with the second cavity (43), and a silica gel stick (33) is further arranged on the spine portion, the silica gel stick (33) is sleeved on the tip and used for sealing the through hole of the spine part (3), a blocking piece is arranged on one face, away from the plug (42), of the piston, the center of the blocking piece coincides with the center of the spine part (3), one side of the blocking piece is fixed on the piston and can swing on the piston, the blocking piece is rigid and is attached to the piston when external force is not applied, and the tip abuts against the blocking piece after the piston is punctured to push the blocking piece away.
2. A safe and rapid drug dispensing syringe as defined in claim 1, wherein: the axis of the needle head seat (12) is coincident with the axis of the spike part, and the diameter of the inner hole of the needle head seat (12) is larger than the diameter of the outer wall of the spike.
3. A safe and rapid drug dispensing syringe as defined in claim 1, wherein: the outer wall of the periphery of the needle seat (12) is provided with threads for being connected with a syringe needle, and the end part of one end, away from the injection part (1), of the needle seat (12) is provided with a seal head for sealing the needle seat (12) and the first cavity (13).
4. A safe and rapid drug dispensing syringe according to any of claims 1 to 3, characterized in that: the inner wall of the column end (22) is provided with threads, the outer wall of the end of a third opening (41) on the medicine storage bottle (4) is provided with threads matched with the inner wall of the column end (22), and the medicine storage bottle (4) is screwed into the column end (22) to press the spine part (3) so that the spine part (3) pierces the piston to communicate the first cavity (13) with the second cavity (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911337091.7A CN110934745B (en) | 2019-12-23 | 2019-12-23 | Safe and rapid medicine preparation injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911337091.7A CN110934745B (en) | 2019-12-23 | 2019-12-23 | Safe and rapid medicine preparation injector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110934745A CN110934745A (en) | 2020-03-31 |
| CN110934745B true CN110934745B (en) | 2022-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911337091.7A Expired - Fee Related CN110934745B (en) | 2019-12-23 | 2019-12-23 | Safe and rapid medicine preparation injector |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111744111A (en) * | 2020-07-17 | 2020-10-09 | 深圳德技创新实业有限公司 | Drug vial and iontophoresis device |
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| CN110934745A (en) | 2020-03-31 |
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