CN109350515A - Syringe - Google Patents
Syringe Download PDFInfo
- Publication number
- CN109350515A CN109350515A CN201811364681.4A CN201811364681A CN109350515A CN 109350515 A CN109350515 A CN 109350515A CN 201811364681 A CN201811364681 A CN 201811364681A CN 109350515 A CN109350515 A CN 109350515A
- Authority
- CN
- China
- Prior art keywords
- storage chamber
- core bar
- piston part
- drug
- guide pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003814 drug Substances 0.000 claims abstract description 113
- 229940079593 drug Drugs 0.000 claims abstract description 110
- 238000007789 sealing Methods 0.000 claims description 14
- 238000002955 isolation Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 abstract description 18
- 239000007924 injection Substances 0.000 description 11
- 238000002347 injection Methods 0.000 description 11
- 229920000669 heparin Polymers 0.000 description 6
- ZFGMDIBRIDKWMY-PASTXAENSA-N heparin Chemical compound CC(O)=N[C@@H]1[C@@H](O)[C@H](O)[C@@H](COS(O)(=O)=O)O[C@@H]1O[C@@H]1[C@@H](C(O)=O)O[C@@H](O[C@H]2[C@@H]([C@@H](OS(O)(=O)=O)[C@@H](O[C@@H]3[C@@H](OC(O)[C@H](OS(O)(=O)=O)[C@H]3O)C(O)=O)O[C@@H]2O)CS(O)(=O)=O)[C@H](O)[C@H]1O ZFGMDIBRIDKWMY-PASTXAENSA-N 0.000 description 6
- 229960001008 heparin sodium Drugs 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 239000002504 physiological saline solution Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 3
- 229940126589 solid medicine Drugs 0.000 description 3
- 241001149930 Protura <class> Species 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
Classifications
-
- 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
- A61J1/201—Piercing means having one piercing end
-
- 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
- A61J1/2093—Containers having several compartments for products to be mixed
-
- 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
- A61M5/31596—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
-
- 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
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3202—Devices for protection of the needle before use, e.g. caps
Abstract
The present invention relates to a kind of syringes.The side wall of housing surrounds one first storage chamber, and the first storage chamber is for storing the first drug.One end of first piston part is arranged in the first storage chamber and can move in the first storage chamber, one second storage chamber is offered on first piston part, the second storage chamber is for storing the second drug.Closed at one end, the other end of the second storage chamber perforation first piston part of first piston part.One end of second piston part can be arranged in the second storage chamber by the other end of first piston part.Diversion cavity is offered on guide pin, diversion cavity runs through one end of guide pin, guide groove is offered on the side wall of the guide pin other end, guide groove is connected with the diversion cavity, the other end of guide pin is fixed on one end of second piston part, and second piston part can move in the second storage chamber, and then drives guide pin mobile, one end of guide pin can lead the one end for piercing through first piston part and be arranged in the first storage chamber, facilitate the mixing of the first drug and the second drug.
Description
Technical field
The present invention relates to drug allocation engineering device technique fields, more particularly to a kind of syringe.
Background technique
Currently, needing medical staff to be pre-configured with certain density drug during being treated by drug for injection.
For example, packing there are two bottles of solid medicine and liquid drug, liquid drug is sucked by syringe, then by liquid drug
It is injected into solid medicine, after mixing to two kinds of drugs, then by mixed drug inhalation syringe.Due to general injection
Device has a single function, and causes medical staff's operating procedure when configuring drug more, and be easy to cause in process for preparation
Drug contamination causes damages to patient health.
Summary of the invention
Based on this, it is necessary in view of the above-mentioned problems, it is easy to operate when configuring drug to provide one kind, and avoid medicine pollution
Syringe.
A kind of syringe, comprising:
Housing, the side wall of the housing surround the first storage chamber, and first storage chamber is for storing the first drug；
First piston part, one end are arranged in first storage chamber and can move in first storage chamber, institute
It states and offers one second storage chamber on first piston part, second storage chamber is for storing the second drug, the first piston
Part it is closed at one end, second storage chamber penetrates through the other end of the first piston part；
Second piston part, one end can be arranged in second storage chamber by the other end of the first piston part；And
Guide pin offers diversion cavity, and the diversion cavity is on one end of the guide pin, the side wall of the guide pin other end
Guide groove is offered, the guide groove is connected with the diversion cavity, and the other end of the guide pin is fixed on the second piston part
On one end, the second piston part can move in second storage chamber, and then drive the guide pin mobile, the guide pin
One end can pierce through one end of the first piston part and be arranged in first storage chamber.
First drug when in use, is deposited in the first storage chamber of housing, one end of first piston part by said syringe
It is arranged in the first storage chamber, so that the first drug stock control is in the first storage chamber.One second storage is offered on first piston part
Chamber is deposited, by the second drug stock control in the second storage chamber.One end of second piston part is arranged in by the other end of first piston part
It is closed at one end due to first piston part in two storage chambers, so that the second drug stock control is in the second storage chamber.Guide pin it is another
End is fixed on one end of second piston part, and one end of guide pin can pierce through one end of first piston part and be arranged in the first storage
It is intracavitary.Simultaneously because guide pin offers diversion cavity, diversion cavity runs through one end of guide pin, offers and lead on the side wall of the guide pin other end
Slot, guide groove are connected with diversion cavity, and then enable to the first storage chamber to be effectively connected with the second storage chamber by guide pin, convenient
The mixing of first drug and the second drug.
In use, the second drug stock control is reserved certain space in the second storage chamber in the second storage chamber.When need
When configuring the mixing drug of the first drug and the second drug, pushes second piston part to move in the second storage chamber, make guide pin
One end pierce through first piston part one end and be arranged in the first storage chamber, the first drug in the first storage chamber can be by leading
Stream chamber enters in the second storage chamber by guide groove, and the second drug is dissolved in the first drug.At this point it is possible to first push first
Piston piece moves in the first storage chamber, utilizes the first drug flushing pipeline.It can also be by pushing first piston part control the
The amount of first drug in one storage chamber continues to press on the drug that second piston part can either will be located in the second storage chamber after mixing
It is pushed into the first storage chamber, obtains certain density mixing drug.
Said syringe is not only vdiverse in function, can configure the drug of various concentration demand.Simultaneously during configuration,
First piston part and/or second piston part only need to be pushed, it is easy to operate.During configuration, do not need the first drug
Or second drug take out, effectively drug is avoided to contact with the external world, avoid drug be contaminated.
The first piston part includes the first core bar and batching pig in one of the embodiments, first core bar
Side wall forms second storage chamber, and second storage chamber runs through the opposite end of first core bar, and the batching pig is set
One end of first core bar is placed in seal one end of first core bar, one end of the guide pin can pierce through the isolation
Plug.
The first card slot, the batching pig are formed on the inner wall of first core bar one end in one of the embodiments,
It is arranged in first card slot.
The batching pig is elastic cock body in one of the embodiments,.
Piston, the outer wall of the piston are arranged on the outer wall of first core bar one end in one of the embodiments,
It is connected on the inner wall of first storage chamber.
The second piston part includes the second core bar and shackle member, second storage chamber in one of the embodiments,
Inner wall on offer the second card slot, the shackle member is set in second card slot, and the inner wall of the shackle member is equipped with
Circlip, one end of second core bar are arranged in second storage chamber, the end face energy of one end of second core bar
It is enough connected on the circlip.
The circlip is annular ring in one of the embodiments,.
The second piston part further includes third core bar in one of the embodiments, and the shackle member is sheathed on described
One end of third core bar, second card slot penetrate through the other end of the first piston part, and one end of the third core bar is worn
In in second card slot, so that the shackle member is effectively connected on the inner wall of second card slot；The third core bar
Slide opening is offered on one end, the slide opening penetrates through the other end of the third core bar, the slide opening and the second storage chamber phase
Connection, second core bar can pass through the slide opening and be arranged in second storage chamber.
The internal diameter of the slide opening is identical as the internal diameter of second storage chamber in one of the embodiments,
The internal diameter of the slide opening and the outer diameter of second core bar match.
One end of second core bar is arranged with sealing ring, the outer wall energy of the sealing ring in one of the embodiments,
It is enough connected on the inner wall of second storage chamber.
Detailed description of the invention
Fig. 1 is the cross-sectional view of syringe in an embodiment；
Fig. 2 is the cross-sectional view of first piston part in Fig. 1；
Fig. 3 is the cross-sectional view of second piston part and guide pin in Fig. 1；
Fig. 4 is the structural schematic diagram of guide pin in Fig. 3；
Fig. 5 is cross-sectional view of the syringe shown in FIG. 1 in the first use state；
Fig. 6 is cross-sectional view of the syringe shown in FIG. 1 in the second use state；
Fig. 7 is cross-sectional view of the syringe shown in FIG. 1 in third use state.
Description of symbols:
10, syringe, 100, housing, the 110, first storage chamber, 200, first piston part, the 210, second storage chamber, 212,
Second card slot, the 220, first core bar, 230, batching pig, the 242, first chuck, 250, piston, 300, second piston part, 310,
Two core bars, 312, sealing ring, 320, shackle member, 322, circlip, 330, third core bar, 332, slide opening, 400, guide pin, 410,
Diversion cavity, 420, guide groove, the 20, first drug, the 30, second drug.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.Many details are explained in the following description in order to fully understand this hair
It is bright.But the invention can be embodied in many other ways as described herein, those skilled in the art can be not
Similar improvement is done in the case where violating intension of the present invention, therefore the present invention is not limited to the specific embodiments disclosed below.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement for illustrative purposes only, are not offered as being unique embodiment.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Each technical characteristic of embodiment described above can carry out arbitrarily
Combination, for simplicity of description, it is not all possible to each technical characteristic in above-described embodiment combination be all described, so
And as long as there is no contradiction in the combination of these technical features, it all should be considered as described in this specification.
Referring to Fig. 1, the syringe 10 in an embodiment, for the configuration of drug, and it is vdiverse in function, so that medical staff
It is easy to operate during configuring drug, and can effectively avoid drug contamination.Specifically, syringe 10 include housing 100,
First piston part 200, second piston part 300 and guide pin 400.
The side wall of housing 100 surrounds one first storage chamber 110, and the first storage chamber 110 is for storing the first drug 20.First
One end of piston piece 200 is arranged in the first storage chamber 110 and can move in the first storage chamber 110.First piston part 200
On offer one second storage chamber 210, the second storage chamber 210 is for storing the second drug 30.One end seal of first piston part 200
It closes, the second storage chamber 210 penetrates through the other end of first piston part 200.It one end of second piston part 300 can be by first piston part
200 other end is arranged in the second storage chamber 210.Diversion cavity 410 is offered on guide pin 400, diversion cavity 410 runs through guide pin
400 one end.Guide groove 420 is offered on the side wall of 400 other end of guide pin, guide groove 420 is connected with diversion cavity 410, guide pin 400
The other end be fixed on one end of second piston part 300, second piston part 300 can move in the second storage chamber 210, into
And driving guide pin 400 mobile, one end of guide pin 400 can pierce through one end of first piston part 200 and be arranged in the first storage chamber
In 110.
First drug 20 when in use, is deposited in the first storage chamber 110 of housing 100 by said syringe 10, and first is living
One end of plug member 200 is arranged in the first storage chamber 110, so that the first drug 20 is sealed in the first storage chamber 110.By second
Drug 30 is stored in the second storage chamber 210, and one end of second piston part 300 is arranged in by the other end of first piston part 200
In two storage chambers 210.It is closed at one end due to first piston part 200, so that the second drug 30 is stored in the second storage chamber 210
It is interior.Second piston part 300 is pushed to move in the second storage chamber 210, so that first piston part 200 is pierced through in one end of guide pin 400
One end and be arranged in the first storage chamber 110.And then first is enabled to by the diversion cavity 410 and guide groove 420 of guide pin 400
Storage chamber 110 and the second effectively conducting of storage chamber 210, facilitate the mixing of the first drug 20 and the second drug 30.
Specific in the present embodiment, the first drug 20 is liquid drug, and the second drug 30 is solid medicine, the second drug 30
When being stored in the second storage chamber 210, certain space is reserved in the second storage chamber 210.When need to configure the first drug 20 with
When the mixing drug of the second drug 30, second piston part 300 is pushed to move in the second storage chamber 210, so that the one of guide pin 400
Terminal spine is worn one end of first piston part 200 and is arranged in the first storage chamber 110, the first drug 20 in the first storage chamber 110
It can be entered in the second storage chamber 210 by diversion cavity 410 by guide groove 420, the second drug 30 is dissolved in the first drug 20
It is interior.At this point it is possible to first first piston part 200 be pushed to move in the first storage chamber 110,20 flushing pipeline of the first drug is utilized.
Second piston can also be continued to press on by pushing first piston part 200 to control the amount of the first drug 20 in the first storage chamber 110
Part 300 can either be pushed into the drug in the second storage chamber 210 is located at after mixing in the first storage chamber 110, be obtained certain dense
The mixing drug of degree.Certainly, in other embodiments, the second drug 30 can be with liquid drug.
For example, the first drug 20 is physiological saline, the second drug 30 is heparin sodium.Due to the pH value and concentration of physiological saline
Have an impact to the potency of heparin sodium, therefore cannot mix in advance.By said syringe 10, physiological saline is stored in the first storage
It deposits in chamber 110, heparin sodium is stored in the second storage chamber 210, and before configuration, physiological saline and heparin sodium separate storage are avoided
Physiological saline is pre-mixed with heparin sodium, influences the potency of heparin sodium.
Referring to Figure 2 together, in an embodiment, first piston part 200 include the first core bar 220 and batching pig 230, first
The side wall of core bar 220 forms the second storage chamber 210.Second storage chamber 210 runs through the opposite end of the first core bar 220, batching pig
230 are set to one end of the first core bar 220 to seal one end of the first core bar 220, and one end of guide pin 400 can pierce through batching pig
230.It, can be by the first core bar 220 and batching pig 230 by different materials system by the first core bar of setting 220 and batching pig 230
At, and guide pin 400 is required to pierce through batching pig 230, therefore, batching pig 230 can be by the material system that facilitates guide pin 400 to pierce through
At, and the first core bar 220 needs to carry the second drug 30, while facilitating second piston part 300 mobile, it can be by harder and stable
The preferable material of property is made.
Specifically, it is formed with the first card slot on the inner wall of 220 one end of the first core bar, batching pig 230 is arranged in the first card slot
It is interior.It enables to batching pig 230 to be effectively arranged on the inner wall of the first core bar 220 by the first card slot, and then can be sealed
Two storage chambers 210, avoid when not in use, and the second drug 30 is revealed by one end of the first core bar 220.
Further, it is provided with the first chuck 242 on the inner wall of 220 one end of the first core bar and is spaced with the first chuck 242
The inner wall of the second chuck 244 being arranged, 220 one end of the first chuck 242, the second chuck 244 and the first core bar surrounds first jointly
Card slot.Wherein, the second chuck 244 is arranged close to the end face of 220 one end of the first core bar, and the size of the second chuck 244 is greater than the
The size of one chuck 242.It can effectively be blocked by the second chuck 244 and set batching pig 230, avoid piercing through batching pig in guide pin 400
During 230, batching pig 230 is detached from the first core bar 220.
Specific in the present embodiment, batching pig 230 is elastic cock body, so that batching pig 230 can not only be effectively fastened on
In first card slot, while one end of the first core bar 220 can effectively be sealed.Specifically, batching pig 230 is rubber stopper.Certainly,
In other embodiments, batching pig 230 can also be the cock body of the other materials such as silica gel plug.
In one embodiment, piston 250 is arranged on the outer wall of 220 one end of the first core bar, the outer wall of piston 250 is connected to
On the inner wall of one storage chamber 110.The first core bar 220 is enabled to more steadily to be arranged in the first storage by the way that piston 250 is arranged
It deposits in chamber 110, while the first drug 20 being effectively sealed in the first storage chamber 110.
Specifically, piston 250 is fixed on the outer wall of 220 one end of the first core bar, when the first core bar 220 is in the first storage chamber
When being moved in 110, so that piston 250 is always positioned at one end of the first core bar 220 and effectively supports with the inner wall of the first storage chamber 110
It connects, the first drug 20 is avoided to reveal.
Also referring to Fig. 3, in an embodiment, second piston part 300 includes the second core bar 310 and shackle member 320, and second
The second card slot 212 is offered on the inner wall of storage chamber 210, shackle member 320 is set in the second card slot 212.Shackle member 320 it is interior
Wall is equipped with circlip 322, and one end of the second core bar 310 is arranged in the second storage chamber 210, one end of the second core bar 310
End face can be connected on circlip 322.
The second storage chamber 210 can be effectively sealed by setting shackle member 320 and circlip 322.Before use, by
Two drugs 30 are stored in the second storage chamber 210, and are reserved in the second storage chamber 210 and certain to be facilitated the first drug 20 and the
The mixed space of two drugs 30, while the space being vacuumized.Since the end face of one end of the second core bar 310 can be connected to bullet
On property retaining ring 322, therefore it can be avoided and moved in the second storage chamber 210 using preceding second core bar 310 due to vacuum space
It is dynamic.In use, enforcing the second core bar 310, so that the second core bar 310 pushes circlip 322, and then guide pin 400 can
Pierce through batching pig 230.Since the second storage chamber 210 is in vacuum state, so that the first drug in the first storage chamber 110
20 are efficiently entering by guide pin 400 into the second storage chamber 210, and the mixing of the first drug 20 and the second drug 30 is accelerated.
Specifically, circlip 322 is annular ring.When the second core bar 310 moves in the second storage chamber 210, due to
Circlip 322 is elastic component, and therefore, circlip 322 can be further connected on the outer wall of the second core bar 310, in turn
Drug in second storage chamber 210 can be sealed, avoid the entrance of extraneous bacterium air.
Certainly, in other embodiments, circlip 322 can also be arranged flexible block by multiple intervals and form, as long as
Certain barrier effect can be played to the second core bar 310.
Optionally, second piston part 300 further includes third core bar 330, and shackle member 320 is sheathed on the one of third core bar 330
End, the second card slot 212 penetrate through the other end of first piston part 200, and one end of third core bar 330 is arranged in the second card slot 212,
So that shackle member 320 is effectively connected on the inner wall of the second card slot 212.Shackle member can be facilitated by the way that third core bar 330 is arranged
320 are fastened in the second card slot 212.
Specifically, the second card slot 212 penetrates through the other end of the first core bar 220, and therefore, the second storage chamber 210 is opened in the
The bottom wall of two draw-in groove 212, and the internal diameter of the second storage chamber 210 is less than the internal diameter of the second card slot 212.When shackle member 320 is set to
When in the second card slot 212, so that shackle member 320 is effectively connected on the bottom wall of the second card slot 212, avoid shackle member 320
It is movable in two draw-in groove 212.
Specifically, slide opening 332 is offered on one end of third core bar 330, slide opening 332 penetrates through the another of third core bar 330
End, slide opening 332 are connected with the second storage chamber 210, and one end of the second core bar 310 can pass through slide opening 332 and be arranged in second
In storage chamber 210.The second core bar 310 is enabled to effectively to be arranged in the second storage chamber 210 by slide opening 332.
Further, the internal diameter of slide opening 332 is identical as the internal diameter of the second storage chamber 210, and with the second core bar
310 outer diameter matches.When the second core bar 310 can effectively be avoided to be arranged in the second storage chamber 210 by slide opening 332, second
The outer wall of core bar 310 can not be contacted effectively with the inner wall of the second storage chamber 210, influence the mixing of drug in the second storage chamber 210
Or it releases.
Further, circlip 322 is located between slide opening 332 and the second storage chamber 210, and circlip 322 is interior
Internal diameter of the diameter less than the second storage chamber 210.Be connected on circlip 322 by one end of the second core bar 310, can effectively by
Slide opening 332 is separated with the second storage chamber 210, is avoided the drug in the second storage chamber 210 contaminated or is leaked out by slide opening 332
It goes.
Optionally, one end of the second core bar 310 is arranged with sealing ring 312, and the outer wall of sealing ring 312 can be connected to second
On the inner wall of storage chamber 210.The sealing function to the second storage chamber 210 can be further strengthened by the way that sealing ring 312 is arranged, is made
It obtains the second storage chamber 210 and effectively keeps vacuum state, while avoiding the drug in the second storage chamber 210 contaminated.
Specific in the present embodiment, one end of the second core bar 310 is arranged with two sealing rings 312, between two sealing rings 312
Every setting.The sealing effect to the second storage chamber 210 can be further strengthened by the way that two sealing rings 312 are arranged.Certainly, at it
In his embodiment, sealing ring 312 can also be other numbers such as one, three, as long as can play to the second storage chamber 210
Effectively seal against effect.
Referring to Figure 4 together, specifically, one end of guide pin 400 is tip, facilitates guide pin 400 that can effectively pierce through isolation
Plug 230.The other end of guide pin 400 directly plugs and is fixed on one end of the second core bar 310.Further, guide groove 420 is opened in
On the side wall of 400 other end of guide pin of the end face of 310 one end of the second core bar.When guide pin 400 passes completely through batching pig 230,
The drug in the second storage chamber 210 is enabled to more efficiently to be entered in the first storage chamber 110 by guide groove 420.More into one
Step ground, end face of the guide groove 420 substantially with 310 one end of the second core bar, so that the second core bar 310 can be by the second storage
Drug in chamber 210 is more fully pushed into the first storage chamber 110.
Specific in the present embodiment, guide pin 400 is steel needle, so that guide pin 400 has preferable hardness, it can be effective
Pierce through batching pig 230.
In one embodiment, one end of housing 100 is formed with injection port 120, and injection port 120 is connected with the first storage chamber 110
It is logical.Facilitated by injection port 120 and the drug injection in first storage chamber 110 is gone out.
Specifically, syringe 10 further includes conehead cap 130, and conehead cap 130 is covered at injection port 120, with closed injection
Mouth 120, avoids outside air impurity from being entered in the second storage chamber 210 by injection port 120.When needing to inject, cone need to be only pulled out
Head cap 130 can be injected.
Specific in the present embodiment, the first drug 20 is physiological saline, and the second drug 30 is therapeutic pharmaceuticals.
Above-mentioned syringe 10 is before use, the first drug 20 is stored in the first storage chamber 110, wherein the first drug
20 be liquid drug.Second drug 30 is stored in the second storage chamber 210, and keeps in the second storage chamber 210 being vacuum shape
State.As shown in figure 5, in use, the second core bar 310 is pushed, so that the second core bar 310 breaks through the blocking of circlip 322, in turn
So that batching pig 230 is pierced through in one end of guide pin 400.Since the second storage chamber 210 is in vacuum state, so that the first storage
The first drug 20 in chamber 110 can be efficiently entering by guide pin 400 into the second storage chamber 210, accelerate the first drug 20 with
The mixing of second drug 30.When the first drug 20 is filled with the second storage chamber 210 completely, so that the first drug 20 and the second drug 30
Effectively mixing.
Further referring to Fig. 6, it can first push the first core bar 220 to move in the first storage chamber 110, utilize the first medicine
20 flushing pipeline of product.It can also be by pushing the first core bar 220 to control the amount of the first drug 20 in the first storage chamber 110, in turn
The concentration of control mixing drug.The second core bar 310 is continued to press on, so that the mixing drug in the second storage chamber 210 is completely by leading
The guide groove 420 and diversion cavity 410 of needle 400 and then in the first storage chamber 110, obtain a certain concentration in the first storage chamber 110
Mixing drug.
Further referring to Fig. 7, the first core bar 220 and the second core bar 310 are further pushed, it can be further by the first storage
It deposits and obtains certain density mixing drug in chamber 110 and released by the injection port 120 of housing 100, complete the injection of drug.
Said syringe 10 is not only vdiverse in function, can configure the drug of various concentration demand.Simultaneously in the process of configuration
In, the first core bar 220 and/or the second core bar 310 only need to be pushed, it is easy to operate, while effectively drug being avoided to connect with the external world
It is contaminated to avoid drug for touching.
Several embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but not
It can therefore be construed as limiting the scope of the patent.It should be pointed out that for those of ordinary skill in the art,
Without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection model of the invention
It encloses.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of syringe characterized by comprising
Housing, the side wall of the housing surround the first storage chamber, and first storage chamber is for storing the first drug；
First piston part, one end are arranged in first storage chamber and can move in first storage chamber, and described the
One second storage chamber is offered on one piston piece, second storage chamber is used to store the second drug, the first piston part
Closed at one end, second storage chamber penetrates through the other end of the first piston part；
Second piston part, one end can be arranged in second storage chamber by the other end of the first piston part；And
Guide pin, offers diversion cavity, and the diversion cavity runs through one end of the guide pin, opens up on the side wall of the guide pin other end
There is guide groove, the guide groove is connected with the diversion cavity, and the other end of the guide pin is fixed on one end of the second piston part
On, the second piston part can move in second storage chamber, and then drive the guide pin mobile, and the one of the guide pin
End can pierce through one end of the first piston part and be arranged in first storage chamber.
2. syringe according to claim 1, which is characterized in that the first piston part includes the first core bar and isolation
Plug, the side wall of first core bar form second storage chamber, and second storage chamber is opposite through first core bar
Both ends, the batching pig are set to one end of first core bar to seal one end of first core bar, and the one of the guide pin
End can pierce through the batching pig.
3. syringe according to claim 2, which is characterized in that be formed with first on the inner wall of first core bar one end
Card slot, the batching pig are arranged in first card slot.
4. syringe according to claim 2 or 3, which is characterized in that the batching pig is elastic cock body.
5. syringe according to claim 2 or 3, which is characterized in that be arranged on the outer wall of first core bar one end
Piston, the outer wall of the piston are connected on the inner wall of first storage chamber.
6. syringe according to claim 1, which is characterized in that the second piston part includes the second core bar and clamping
Part offers the second card slot on the inner wall of second storage chamber, and the shackle member is set in second card slot, the card
The inner wall of fitting is equipped with circlip, and one end of second core bar is arranged in second storage chamber, second core
The end face of one end of bar can be connected on the circlip.
7. syringe according to claim 6, which is characterized in that the circlip is annular ring.
8. syringe according to claim 6, which is characterized in that the second piston part further includes third core bar, described
Shackle member is sheathed on one end of the third core bar, and second card slot penetrates through the other end of the first piston part, and described
One end of three core bars is arranged in second card slot, so that the shackle member is effectively connected to the inner wall of second card slot
On；Offer slide opening on one end of the third core bar, the slide opening penetrates through the other end of the third core bar, the slide opening with
Second storage chamber is connected, and second core bar can pass through the slide opening and be arranged in second storage chamber.
9. syringe according to claim 8, which is characterized in that the internal diameter of the slide opening and second storage chamber
Internal diameter it is identical, the internal diameter of the slide opening and the outer diameter of second core bar match.
10. according to the described in any item syringes of claim 6-9, which is characterized in that one end of second core bar is arranged with
Sealing ring, the outer wall of the sealing ring can be connected on the inner wall of second storage chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811364681.4A CN109350515A (en) | 2018-11-16 | 2018-11-16 | Syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811364681.4A CN109350515A (en) | 2018-11-16 | 2018-11-16 | Syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109350515A true CN109350515A (en) | 2019-02-19 |
Family
ID=65345465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811364681.4A Pending CN109350515A (en) | 2018-11-16 | 2018-11-16 | Syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109350515A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1076370A (en) * | 1992-03-19 | 1993-09-22 | 哈伯利医疗技术有限公司 | Telescoping, pharmaceutical mixing container |
| FR2717086A1 (en) * | 1994-03-11 | 1995-09-15 | Debiotech | Syringe system for mixing two compounds |
| CN1133003A (en) * | 1993-09-07 | 1996-10-09 | 生物技术公司 | Syringe device for mixing two compounds |
| CN102935255A (en) * | 2012-10-30 | 2013-02-20 | 无锡耐思生物科技有限公司 | Pre-filling-and-sealing syringe structure for mixing |
| CN102940920A (en) * | 2012-10-30 | 2013-02-27 | 无锡耐思生物科技有限公司 | Mixing pre-filled and sealed injector |
| CN209286165U (en) * | 2018-11-16 | 2019-08-23 | 阳普医疗（湖南）有限公司 | Syringe |
-
2018
- 2018-11-16 CN CN201811364681.4A patent/CN109350515A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1076370A (en) * | 1992-03-19 | 1993-09-22 | 哈伯利医疗技术有限公司 | Telescoping, pharmaceutical mixing container |
| CN1133003A (en) * | 1993-09-07 | 1996-10-09 | 生物技术公司 | Syringe device for mixing two compounds |
| FR2717086A1 (en) * | 1994-03-11 | 1995-09-15 | Debiotech | Syringe system for mixing two compounds |
| CN102935255A (en) * | 2012-10-30 | 2013-02-20 | 无锡耐思生物科技有限公司 | Pre-filling-and-sealing syringe structure for mixing |
| CN102940920A (en) * | 2012-10-30 | 2013-02-27 | 无锡耐思生物科技有限公司 | Mixing pre-filled and sealed injector |
| CN209286165U (en) * | 2018-11-16 | 2019-08-23 | 阳普医疗（湖南）有限公司 | Syringe |
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