CN1094967A - A kind of reservoir and the syringe of making by reservoir - Google Patents
A kind of reservoir and the syringe of making by reservoir Download PDFInfo
- Publication number
- CN1094967A CN1094967A CN 93105563 CN93105563A CN1094967A CN 1094967 A CN1094967 A CN 1094967A CN 93105563 CN93105563 CN 93105563 CN 93105563 A CN93105563 A CN 93105563A CN 1094967 A CN1094967 A CN 1094967A
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- reservoir
- injection tube
- syringe
- injection
- liquid storing
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Abstract
The present invention is a kind of reservoir and the syringe that has reservoir, belongs to the improvement of disposable syringe, it is characterized in that the front end of reservoir can be adorned syringe needle, the rear end is a liquid storing bag.During use, liquid storing bag is put into the intracavity of a supporting with it injection tube, and with reservoir with injection tube is airtight links into an integrated entity.Because medicinal liquid or blood are contained in the liquid storing bag,, only reservoir are abandoned and to reach disposable requirement so that injection tube can keep clean is also reusable.Like this, compare, both can save raw material about 70%, meet hygienic requirements again, be applicable to each medical department with existing disposable syringe.
Description
The invention belongs to the medical injection utensil, particularly relate to a kind of disposable syringe that has reservoir.
Traditional glass syringe all uses repeatedly, and advantage is for reducing expenses, and shortcoming is that work such as the cleaning, sterilization of syringe are wasted time and energy, and easily causes cross infection.The disposable plastic injector of Sheng Chaning has overcome above-mentioned shortcoming in recent years, only uses once and abandons but its new problem of bringing is syringe, pintle, causes raw-material huge waste such as plastics, rubber, causes cost to improve, and has increased patient's burden.
Chinese patent discloses two kinds of syringes in recent years: a kind of application number is 90224633.X, and name is called no bolt syringe; A kind of application number is 90221005.X, and name is called disposable syringe.Its common principle is directly to export medicinal liquid with hands extruding medicine chamber, and utilizes the resilience force aspiration medicinal liquid of medicine chamber wall, and its advantage is for saving material, avoided the pintle pollution, shortcoming owes convenient for operation, and metering owes accurate, the medicine intracavity easily has bubble, the liquid higher to concentration, and suction is difficulty relatively.
The object of the present invention is achieved like this: design a disposable reservoir, it comprises a Connection Block and a liquid storing bag of being made by flexible non-toxic film, the front end of Connection Block is shaped on the injection nipple, fixedly connected with the bag mouth of liquid storing bag and be integral in its rear end, the body periphery of Connection Block also is shaped on the interface that can connect injection tube.
Reservoir both can use separately, substituted ampoule as container, was encapsulated into various medicinal liquids; Also can be used as an ingredient of syringe, and mainly be ingredient as syringe; For this reason, also design a supporting with it reusable injection tube, the injection tube front end is straight tubular open ports, and is shaped on the connector that can be connected with reservoir.During use, the liquid storing bag on the reservoir is placed the intracavity of injection tube through open ports, and reservoir is connected with injection tube, be combined into a kind of syringe that has the liquid capsule.During design, should make between liquid storing bag and injection tube inwall has certain interval and keeps sealing state, makes it to form an atmospheric pressure cavity.When being negative pressure in the atmospheric pressure cavity, the liquid storing bag expansion also produces captivation, injection (medicinal liquid or blood) is sucked in the bag, otherwise injection is then by exporting in the bag.
Advantage of the present invention and good effect are: injection solution is contained in the liquid storing bag during 1, owing to use, has changed injection and has directly entered the interior conventional approach of syringe, and injection tube is kept clean.Therefore, the part that abandons after the per injection only is materials reservoirs seldom, has so both had the superiority of disposable syringe, has significantly reduced the quantity that abandons part again, can save raw material about 70%, thereby reduce cost significantly; 2, because liquid storing bag is made with very softish thin film, and it is convenient to get rid of bubble when therefore using, injection is emptying easily also; 3, the diameter of liquid storing bag is decided to be a kind of specification after, only need to change length, just can form multiple capacity specifications, so measure also more convenient; 4, reservoir both can be used as container and had been encapsulated into the alternative ampoule of medicinal liquid in advance, can make up with injection tube again, used as syringe.
Introduce structure of the present invention and operation principle in detail below in conjunction with accompanying drawing:
Fig. 1 is the structural representation of reservoir.
Fig. 2 is the plug formula for injection tube structural representation: a; B is no bolt formula.
Fig. 3 is the structural representation of the syringe of reservoir and injection tube composition.
Fig. 4 is connected mode between reservoir and the injection tube and the version sketch map of injecting nipple.
Referring to Fig. 1, reservoir is made up of the Connection Block (1) of an injection mo(u)lding and a liquid storing bag (2), the front end of Connection Block (1) is shaped on injection nipple (4), the bag mouth of its rear end and liquid storing bag (2) is fixedlyed connected with modes such as heat seal, bonding or sockets and is integral, and the junction must strict seal.The body periphery of Connection Block (1) is shaped on the interface (3) that can be connected with injection tube.When reservoir when the container of ampoule encapsulation medicinal liquid uses as an alternative, can be with injection nipple (4) with heat seal, bonding or sealed with stopper.Liquid storing bag (2) is made by transparent, softish non-toxic film, and capacity can be made into needed all size.
Referring to Fig. 2 a, b, the available transparent plastic injection mo(u)lding of injection tube (5), its front end is made straight-cylindrical open ports (9), and the liquid storing bag on the reservoir (2) can be come in and gone out thus.Unlimited peristoma also is shaped on connector (8), can be connected with Connection Block interface (3).The rear end of injection tube (5) can be made into two kinds of forms: 1, shown in Fig. 2 a, make and head straight for mouthful its intracavity a pintle that can slide (6) is housed.For flexible operation and airtight, the head of pintle (a 6) cover rubber piston (7), the far-end of rubber piston (7) is made concave shaped, makes it to match with the bag Bottom Shape of liquid storing bag (2), to save the space; 2, shown in Fig. 2 b, its intracavity is not with pintle (6), and is shaped on an air duct fitting (11) that is used to connect air pump airway (12) at its rear portion, replaces pintle (6) with air pump.Air pump can be the small-sized electric air pump, also can be foot-operated or the manual type pneumatic shuttle.Change for ease of grasping positive and negative air-pressure, also can be at intracavity or the chamber mechanical pointer of outer installation or the explicit air gauge of electron number (10) of injection tube (5).In addition, for the ease of adjusting air pressure, can also open an aperture on the wall of injection tube (5), or refill a pressure regulator valve, press...withing one's finger during operation to press gets final product.More than the injection tube (5) of band pintle is easy to carry, uses flexibly; And the injection tube (5) that does not have pintle is applicable to the use of comparison fixed place.
Referring to Fig. 3, as seen from the figure, this is a syringe that has reservoir.Liquid storing bag (2) is placed in the intracavity of injection tube (5), interface (3) on its Connection Block (1) can be tightly connected with the connector (8) on the injection tube (5), reservoir and injection tube (5) are combined into one, and make the inwall of injection tube (5) and the gap between liquid storing bag (2) and the pintle (6) form an atmospheric pressure cavity (13).Pull back pintle (6) or bleed with air pump, form negative pressure in the atmospheric pressure cavity (13), liquid storing bag (2) expansion also produces captivation, injection is entered in the liquid storing bag (2) through entry needle (14), injection nipple (4), when can producing in the pharmaceutical factory, some injection directly packs in the liquid storing bag (2), closed injection nipple (4) is broken seal during use; When pushing ahead pintle (6) or using air-pump inflating, form malleation in the atmospheric pressure cavity (13), force the injection in the liquid storing bag (2) to be exported gradually.Hence one can see that, by changing atmospheric pressure cavity (13) internal gas pressure to form the way of positive and negative pressure, just can reach the purpose that sucks and export injection.
Referring to Fig. 4, as seen from the figure, go up and the front end of injection tube (5) at the Connection Block (1) of reservoir, be shaped in the connector of mutual coupling, they can have multiple version: Fig. 4 a is depicted as the pattern that is threaded: be shaped on tapped interface (3) on the Connection Block (1), the front end of injection tube (5) is shaped on is with externally threaded connector (8), and both link to each other with screw thread; Fig. 4 b is for connecting pattern by nut: the body periphery of Connection Block (1) is made the disk formula interface (3) that mates with the unlimited peristoma of injection tube (5), utilize the circular table (19) on the nut (18), the periphery of Connection Block (1) is blocked, then, female thread (20) on the nut (18) and the external screw thread connector (8) on the injection tube (5) are tightened; Bail type shown in Fig. 4 C connects, the front end of injection tube (5) is shaped on one or several axial hole, puts into bayonet lock (8) in the hole, and the side in axial hole is shaped on corresponding radial hole, the expense of packing in hole button (21) is shaped on the pin-and-hole (3) of laying bayonet lock (8) on the Connection Block (1).Pin-and-hole (3) is set on the bayonet lock (8), and reservoir can be connected with injection tube (5), pushes expense knob (21), reservoir can be taken off.For guaranteeing sealing, between the joint face of above three kinds of connected modes, place the sealing ring (16) of plastics or rubber system.In addition, be used to be combined into the reservoir of syringe, its injection nipple (4) can be made into various ways: a, injecting needle base (15) can be installed, shown in Fig. 4 a; B, can connect injection catheter (17), shown in Fig. 4 b; C, can directly load onto injection needle (14), form such as shown in Fig. 4 C.
Claims (8)
1, a kind of reservoir, it is made up of a Connection Block (1) and a liquid storing bag (2), the front end that it is characterized in that Connection Block (1) is shaped on injection nipple (4), fixedly connected with the bag mouth of liquid storing bag (2) and be integral in the rear end, the body periphery of Connection Block (1) also is shaped on the interface (3) that can connect injection tube.
2,, it is characterized in that injecting nipple (4) and sealed with heat seal, bonding or cock cap as the said reservoir of claim 1.
3,, it is characterized in that liquid storing bag (2) makes with transparent, softish non-toxic film as the said reservoir of claim 2.
4, a kind of syringe of forming with the said reservoir of claim 1 is characterized in that it also has an injection tube (5), and the front end of injection tube (5) is a straight tubular open ports (9), and is shaped on the connector (8) that can connect reservoir; Liquid storing bag on the reservoir (2) is placed in the intracavity of injection tube (5) through open ports (9), and Connection Block interface (3) is tightly connected mutually with injection tube connector (8), and reservoir and injection tube (5) are combined into one.
5,, it is characterized in that the intracavity of injection tube (5) is equipped with a pintle that can slide (6) as the said syringe of claim 4; Also can make the air duct fitting (11) that joins with source of the gas at its rear portion to replace pintle (6).
6, as the said syringe of claim 4, it is characterized in that can adopting multiple connected mode between reservoir and the injection tube (5): a. is threaded; B. nut connects; C. bayonet lock connects.
7,, it is characterized in that placing a sealing ring (16) between the connector (3 and 8) of reservoir and injection tube (5) as the said syringe of claim 6.
8,, it is characterized in that injection nipple (4) on the reservoir can be made into three kinds of form: a. injecting needle bases (15) are installed as the said syringe of claim 4; B. connect injection catheter (17); C. directly load onto injection needle (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93105563 CN1094967A (en) | 1992-11-23 | 1993-05-14 | A kind of reservoir and the syringe of making by reservoir |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92113183.6 | 1992-11-23 | ||
| CN92113183 | 1992-11-23 | ||
| CN 93105563 CN1094967A (en) | 1992-11-23 | 1993-05-14 | A kind of reservoir and the syringe of making by reservoir |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1094967A true CN1094967A (en) | 1994-11-16 |
Family
ID=25742837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93105563 Pending CN1094967A (en) | 1992-11-23 | 1993-05-14 | A kind of reservoir and the syringe of making by reservoir |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1094967A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009097791A1 (en) * | 2008-02-01 | 2009-08-13 | Shaolei Guan | Cartridge of pen-type insulin injector |
| CN102580186A (en) * | 2012-02-28 | 2012-07-18 | 马光元 | Semi-automatic disposable injector |
| CN102961804A (en) * | 2012-11-30 | 2013-03-13 | 广东康尔美医疗器械有限公司 | Injector capable of repeatedly using boosting device and liquid storage device thereof |
| CN101496768B (en) * | 2008-02-01 | 2014-04-09 | 关和瑜 | Cartridge with high safety and low amount of residual liquid of pen type insulin syringe |
| CN107174701A (en) * | 2017-07-05 | 2017-09-19 | 湖南文理学院 | One kind can avoid liquid medicine contamination and reusable syringe |
-
1993
- 1993-05-14 CN CN 93105563 patent/CN1094967A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009097791A1 (en) * | 2008-02-01 | 2009-08-13 | Shaolei Guan | Cartridge of pen-type insulin injector |
| CN101496768B (en) * | 2008-02-01 | 2014-04-09 | 关和瑜 | Cartridge with high safety and low amount of residual liquid of pen type insulin syringe |
| CN102580186A (en) * | 2012-02-28 | 2012-07-18 | 马光元 | Semi-automatic disposable injector |
| CN102961804A (en) * | 2012-11-30 | 2013-03-13 | 广东康尔美医疗器械有限公司 | Injector capable of repeatedly using boosting device and liquid storage device thereof |
| WO2014082412A1 (en) * | 2012-11-30 | 2014-06-05 | 电白县康尔美生物科技有限公司 | Syringe capable of repeatedly using drive device, and liquid storage device thereof |
| CN102961804B (en) * | 2012-11-30 | 2014-06-25 | 电白县康尔美生物科技有限公司 | Injector capable of repeatedly using boosting device and liquid storage device thereof |
| CN107174701A (en) * | 2017-07-05 | 2017-09-19 | 湖南文理学院 | One kind can avoid liquid medicine contamination and reusable syringe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |