CN203898851U - Injection syringe with needle cylinder capable of automatically discharging air - Google Patents
Injection syringe with needle cylinder capable of automatically discharging air Download PDFInfo
- Publication number
- CN203898851U CN203898851U CN201420302090.5U CN201420302090U CN203898851U CN 203898851 U CN203898851 U CN 203898851U CN 201420302090 U CN201420302090 U CN 201420302090U CN 203898851 U CN203898851 U CN 203898851U
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- CN
- China
- Prior art keywords
- outer sleeve
- sleeve body
- syringe
- air
- ventilated membrane
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to an injection syringe, in particular to an injection syringe with a needle cylinder capable of automatically discharging air, and belongs to the technical field of medical instruments. According to the technical scheme, the injection syringe with the needle cylinder capable of automatically discharging air comprises an outer sleeve and a push rod which is installed in the outer sleeve and can be moved in the outer sleeve; the outer sleeve is provided with a first end and a second end corresponding to the first end, and a needle base is arranged at the first end of the outer sleeve; a plurality of air holes communicated with a pipe cavity in the outer sleeve are formed in the first end of the outer sleeve, and the air holes are fixedly covered with a water-blocking and air-permeable membrane. The injection syringe is compact in structure, convenient to use, capable of automatically discharging the air in liquid medicine when the liquid medicine is manually pumped and pushed to be injected, safe and reliable.
Description
Technical field
This utility model relates to a kind of syringe, and especially a kind of syringe, from aerofluxus syringe, belongs to the technical field of medical apparatus and instruments.
Background technology
At present, when the perfusion of conventional various types injector for medical purpose machine preliminary filling, drawing excessively during because of hypoperfusion or by artificial suction medicinal liquid, is in syringe, to occur gas remnants, must execution Exhaust Gas program before using, otherwise, exist the risk of gas inject human body.Must be slow and careful when Exhaust Gas, otherwise be often discharged from because overexertion makes part medicinal liquid, waste or environmental pollution caused.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of syringe from aerofluxus syringe, its compact conformation, easy to use, can realize machine fill or manually extract after medicinal liquid, can, by the air in syringe jacket cylinder from aerofluxus, can not cause any liquid waste and pollution without specific actions, safe and reliable.
The technical scheme providing according to this utility model, described syringe, from aerofluxus syringe, comprises outer sleeve body and is installed in described outer sleeve body and the push rod that can move in described outer sleeve body; Outer sleeve body has first end and second end corresponding with described first end, and the end of outer sleeve body first end is provided with needle stand; The first end of described outer sleeve body arranges some air-vents that are connected with the tube chamber in outer sleeve body, is fixedly coated with the ventilated membrane that blocks water on described air-vent.
The described ventilated membrane that blocks water is provided with the protective layer that can tear.
The end that described push rod is positioned at outer sleeve body is provided with solid plug ring, and push rod is provided with piston body by solid plug ring, and described piston body contacts with the inwall of outer sleeve body.
The first end of described outer sleeve body is provided with needle tubing by needle stand.
The second end end of described outer sleeve body is provided with locating piece, and the end that push rod is positioned at outside outer sleeve body is provided with push-rod handle.
Advantage of the present utility model: by air-vent being set and the ventilated membrane that blocks water on outer sleeve body, the block water effect of ventilated membrane of utilization, air in outer sleeve body inner liquid medicine can be discharged in the use operating process of syringe, simplify the program that needs gas in slowly careful discharge syringe before existing injector to inject medicinal liquid; Utilize protective layer can the ventilated membrane that block water be covered and be blocked, in the time that syringe does not use, by protective layer, block water ventilated membrane and medicinal liquid are effectively protected; Meanwhile, while manually extracting medicinal liquid, avoid a large amount of gas to enter in outer sleeve body because protective layer can cover to block to the ventilated membrane that blocks water, medicinal liquid can be inhaled in outer sleeve body.This utility model goes for pre-encapsulated injector, is also applicable to common intramuscular injection and other injector for medical purpose, and compact conformation is easy to use, safe and reliable.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Reference numeral is said: the solid plug ring of 1-outer sleeve body, 2-push rod, 3-locating piece, 4-push-rod handle, 5-, 6-piston body, 7-block water ventilated membrane, 8-protective layer, 9-needle tubing and 10-needle stand.
Detailed description of the invention
Below in conjunction with concrete drawings and Examples, the utility model is described in further detail.
As shown in Figure 1: in order to realize the discharge of air in syringe, simplify the bleeding program of existing syringe, this utility model comprises outer sleeve body 1 and is installed in described outer sleeve body 1 and the push rod 2 that can move in described outer sleeve body 1; Outer sleeve body 1 has first end and second end corresponding with described first end, and the end of outer sleeve body 1 first end is provided with needle stand 9; The first end of described outer sleeve body 1 is provided with air-vent, is fixedly coated with the ventilated membrane 7 that blocks water on described air-vent.
Particularly, the contiguous needle stand 9 of air-vent on outer sleeve body 1, can arrange one or more air-vents on outer sleeve body 1, and described air-vent connects outer sleeve body 1, and the interior air of outer sleeve body 1 can be overflowed by air-vent.The ventilated membrane 7 that blocks water is set on the inwall of outer sleeve body 1 or outer wall, described in the ventilated membrane 7 that blocks water cover and block air-vent.
Further, the ventilated membrane 7 that blocks water described in is provided with protective layer 8, diaphragm seal or the unidirectional choke diaphragm seal of protective layer 8 for tearing.In this utility model embodiment, block water ventilated membrane 7 and protective layer 8 all carry out antimicrobial treatment, the requirement using to reach medical treatment.
In the time that protective layer 8 is the diaphragm seal that can tear, extract the front reservation protection layer 8 of medicinal liquid, due to protective layer
8to the sealing function of the ventilated membrane 7 that blocks water, gas can not enter outer sleeve body 1 through block water ventilated membrane 7 and air-vent, but a small amount of gas enters in outer sleeve body 1 via needle tubing 9 and needle stand 10.When use, only need to tear protective layer 8, without the slow careful bleeding program of sequencing.When medicinal liquid in push rod 2 promotes outer sleeve body 1, medicinal liquid pressure is greater than atmospheric pressure, when gas in medicinal liquid arrives blocking water when ventilated membrane 7 region of outer sleeve body 1 top, the utilization trafficability characteristic of ventilated membrane 7 to air that block water, the air in outer sleeve body 1 can be discharged outside outer sleeve body 1 by blocking water ventilated membrane 7 and the air-vent of outer sleeve body 1 end; Utilize the block of ventilated membrane 7 to water that block water, outer sleeve body 1 inner liquid medicine can not flow out by block water ventilated membrane 7 and air-vent simultaneously.
In the time that protective layer 8 is unidirectional choke diaphragm seal; extract when medicinal liquid the one-way sealing effect to the ventilated membrane 7 that blocks water of unidirectional choke diaphragm seal due to protective layer 8; gas can not enter outer sleeve body 1 through block water ventilated membrane 7 and air-vent, but a small amount of gas enters in outer sleeve body 1 via needle tubing 9 and needle stand 10.When medicinal liquid uses, without the slow careful bleeding program of sequencing.When medicinal liquid in push rod 2 promotes outer sleeve body 1, medicinal liquid pressure is greater than atmospheric pressure, when gas in medicinal liquid arrives blocking water when ventilated membrane 7 region of outer sleeve body 1 top, the unidirectional choke diaphragm seal of protective layer 8 disappears to the one-way sealing effect of the ventilated membrane 7 that blocks water, block water ventilated membrane 7 for open state, the utilization trafficability characteristic of ventilated membrane 7 to air that block water, the air in outer sleeve body 1 can be discharged outside outer sleeve body 1 by blocking water ventilated membrane 7 and the air-vent on outer sleeve body 1 top; Utilize the block of ventilated membrane 7 to water that block water, outer sleeve body 1 inner liquid medicine can not overflowed by block water ventilated membrane 7 and air-vent simultaneously.
The end that described push rod 2 is positioned at outer sleeve body 1 is provided with solid plug ring 5, and push rod 2 is provided with piston body 6 by solid plug ring 5, and described piston body 6 contacts with the inwall of outer sleeve body 1.The shape of the shape of piston body 6 and outer sleeve body 1 matches, close contact between piston body 6 and outer sleeve body 1, can realize the effective sealing to outer sleeve body 1 inner liquid medicine by piston body 6, when promote piston body 6 by push rod 2 in the interior motion of outer sleeve body 1 be, can apply active force to medicinal liquid by piston body 6, so that the medicinal liquid in outer sleeve body 1 is injected or to be released.
The first end of described outer sleeve body 1 is provided with needle tubing 10 by needle stand 9.The second end end of described outer sleeve body 1 is provided with locating piece 3, and the end that push rod 2 is positioned at outside outer sleeve body 1 is provided with push-rod handle 4.When installing on needle stand 9 after needle tubing 10, can carry out required intravenous injection or other injection operations by needle tubing 10.The push-rod handle 4 of the locating piece 3 of outer sleeve body 1 end and push rod 2 ends can conveniently be implemented the push-and-pull operation to push rod 2.
To sum up, syringe of the present utility model also can be used for prefilled syringe, in the time being prefilled syringe, is only that medicinal liquid is pre-installed in outer sleeve body 1, and syringe is identical to the discharging operation of air in prefilled syringe, repeats no more herein.
This utility model is by arranging air-vent and the ventilated membrane 7 that blocks water on outer sleeve body 1, the block water effect of ventilated membrane 7 of utilization, air in outer sleeve body 1 inner liquid medicine can be discharged in the use operating process of syringe, simplify the program that needs gas in slowly careful discharge syringe before existing injector to inject medicinal liquid; Utilize protective layer 8 can the ventilated membrane 7 that block water be covered and be blocked, in the time that syringe does not use, by protective layer 8, block water ventilated membrane 7 and medicinal liquid are effectively protected; Meanwhile, while manually extracting medicinal liquid, avoid a large amount of gas to enter in outer sleeve body 1 because protective layer 8 can cover to block to the ventilated membrane that blocks water, medicinal liquid can be inhaled in outer sleeve body 1.This utility model goes for pre-encapsulated injector, is also applicable to common intramuscular injection and other injector for medical purpose, and compact conformation is easy to use, safe and reliable.
Claims (5)
1. syringe, from an aerofluxus syringe, comprises outer sleeve body (1) and is installed in described outer sleeve body (1) and the push rod (2) that can move in described outer sleeve body (1); Outer sleeve body (1) has first end and second end corresponding with described first end, and the end of outer sleeve body (1) first end is provided with needle stand (9); It is characterized in that: the first end of described outer sleeve body (1) arranges some air-vents that are connected with the tube chamber in outer sleeve body (1), is fixedly coated with the ventilated membrane that blocks water (7) on described air-vent.
2. syringe according to claim 1, from aerofluxus syringe, is characterized in that: described in the ventilated membrane (7) that blocks water be provided with the protective layer (8) that can tear.
3. syringe according to claim 1 is from aerofluxus syringe, it is characterized in that: the end that described push rod (2) is positioned at outer sleeve body (1) is provided with solid plug ring (5), push rod (2) is provided with piston body (6) by solid plug ring (5), and described piston body (6) contacts with the inwall of outer sleeve body (1).
4. syringe according to claim 1, from aerofluxus syringe, is characterized in that: the first end of described outer sleeve body (1) is provided with needle tubing (10) by needle stand (9).
5. syringe according to claim 1, from aerofluxus syringe, is characterized in that: the second end end of described outer sleeve body (1) is provided with locating piece (3), and push rod (2) is positioned at the outer end of outer sleeve body (1) and is provided with push-rod handle (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420302090.5U CN203898851U (en) | 2014-06-09 | 2014-06-09 | Injection syringe with needle cylinder capable of automatically discharging air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420302090.5U CN203898851U (en) | 2014-06-09 | 2014-06-09 | Injection syringe with needle cylinder capable of automatically discharging air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203898851U true CN203898851U (en) | 2014-10-29 |
Family
ID=51773147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420302090.5U Expired - Fee Related CN203898851U (en) | 2014-06-09 | 2014-06-09 | Injection syringe with needle cylinder capable of automatically discharging air |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203898851U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104606748A (en) * | 2015-02-10 | 2015-05-13 | 山东大学齐鲁医院 | Pressure reduction injection syringe capable of exhausting |
| CN110812230A (en) * | 2019-12-08 | 2020-02-21 | 湖南平安医械科技有限公司 | Disposable automatic exhaust syringe for dispensing |
| CN112165966A (en) * | 2018-06-01 | 2021-01-01 | 贝克顿·迪金森公司 | Low dose syringe comprising an air purge system |
| CN113018589A (en) * | 2021-02-06 | 2021-06-25 | 焦作市妇幼保健院(焦作市妇女儿童医院) | Puncture-proof disposable syringe |
-
2014
- 2014-06-09 CN CN201420302090.5U patent/CN203898851U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104606748A (en) * | 2015-02-10 | 2015-05-13 | 山东大学齐鲁医院 | Pressure reduction injection syringe capable of exhausting |
| CN112165966A (en) * | 2018-06-01 | 2021-01-01 | 贝克顿·迪金森公司 | Low dose syringe comprising an air purge system |
| US11654240B2 (en) | 2018-06-01 | 2023-05-23 | Becton, Dickinson And Company | Low dose syringe including an air venting system |
| CN110812230A (en) * | 2019-12-08 | 2020-02-21 | 湖南平安医械科技有限公司 | Disposable automatic exhaust syringe for dispensing |
| CN113018589A (en) * | 2021-02-06 | 2021-06-25 | 焦作市妇幼保健院(焦作市妇女儿童医院) | Puncture-proof disposable syringe |
| CN113018589B (en) * | 2021-02-06 | 2024-02-06 | 焦作市妇幼保健院(焦作市妇女儿童医院) | Disposable injector for preventing puncture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20150609 |
|
| EXPY | Termination of patent right or utility model |