CN211327448U - Disposable skin test injector - Google Patents
Disposable skin test injector Download PDFInfo
- Publication number
- CN211327448U CN211327448U CN201921358217.4U CN201921358217U CN211327448U CN 211327448 U CN211327448 U CN 211327448U CN 201921358217 U CN201921358217 U CN 201921358217U CN 211327448 U CN211327448 U CN 211327448U
- Authority
- CN
- China
- Prior art keywords
- hole
- inner core
- liquid storage
- storage cavity
- skin test
- 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.)
- Expired - Fee Related
Links
- 239000007788 liquid Substances 0.000 claims abstract description 33
- 239000003814 drug Substances 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 7
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 5
- 239000012085 test solution Substances 0.000 description 7
- 239000003085 diluting agent Substances 0.000 description 4
- 239000011550 stock solution Substances 0.000 description 4
- 229940126589 solid medicine Drugs 0.000 description 3
- 206010011409 Cross infection Diseases 0.000 description 2
- 206010029803 Nosocomial infection Diseases 0.000 description 2
- 239000003708 ampul Substances 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002504 physiological saline solution Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 229930182555 Penicillin Natural products 0.000 description 1
- JGSARLDLIJGVTE-MBNYWOFBSA-N Penicillin G Chemical compound N([C@H]1[C@H]2SC([C@@H](N2C1=O)C(O)=O)(C)C)C(=O)CC1=CC=CC=C1 JGSARLDLIJGVTE-MBNYWOFBSA-N 0.000 description 1
- 238000002266 amputation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229940049954 penicillin Drugs 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to a disposable skin test injector. The syringe comprises a needle, a barrel, a liquid storage cavity and a piston, wherein the front end of the barrel is provided with a mouthpiece for connecting the needle, and the liquid storage cavity is connected to the tail part of the barrel; the piston comprises a sliding body, an inner core, a piston shaft and a handle, a sliding groove is formed in the inner wall of the cylinder, a clamping strip matched with the sliding groove is arranged on the side wall of the sliding body, a limiting groove is formed in the middle of the sliding body, and the inner core is located in the limiting groove; a first through hole is formed in the bottom of the limiting groove, a second through hole corresponding to the first through hole is formed in the inner core, and the first through hole and the second through hole are communicated or closed through horizontal rotation of the inner core; one end of the piston shaft passes through the liquid storage cavity from the outside of the liquid storage cavity and is connected with the inner core; the other end of the piston shaft is connected with the handle.
Description
Technical Field
The utility model relates to an injector, in particular to a disposable skin test injector.
Background
At present, in the skin test method adopted clinically, taking penicillin as an example, the medicine powder is taken as an ampoule, and 5ml of physiological saline is stored in another glass ampoule. When skin test is carried out, 5ml of physiological saline is completely added into the drug amputation bottle, only 1ml of mixed liquid medicine is taken for skin test, the skin test is completed only by pushing 0.1ml of the skin, and the rest mixed liquid medicine causes great waste. If a plurality of patients use the skin test solution at the same time, the skin test solution is easy to be polluted when the skin test solution is repeatedly extracted. The skin test solution is prepared at present, the traditional Ann-cut bottle skin test solution is used, workers habitually place the dissolved skin test solution for use within 24 hours, and the inaccuracy of skin test results is caused by the fact that whether the nature of liquid medicine is deteriorated or not is difficult to detect, so that the treatment and the health of patients are influenced or delayed. The traditional skin test solution preparation needs article preparation and operation steps, the process is complicated, and the workload of workers and the waiting time of patients are increased.
Disclosure of Invention
An object of the utility model is to overcome the defect that exists among the prior art, provide a measurement accuracy, the existing use of joining in marriage prevents to pollute and cross infection, improves medical personnel work efficiency's disposable skin test syringe.
The utility model discloses a realize like this: a disposable skin test injector comprises a needle head, a cylinder body, a liquid storage cavity and a piston, wherein the front end of the cylinder body is provided with a mouthpiece used for connecting the needle head, and the liquid storage cavity is connected to the tail part of the cylinder body; the piston comprises a sliding body, an inner core, a piston shaft and a handle, a sliding groove is formed in the inner wall of the cylinder, a clamping strip matched with the sliding groove is arranged on the side wall of the sliding body, a limiting groove is formed in the middle of the sliding body, and the inner core is located in the limiting groove;
a first through hole is formed in the bottom of the limiting groove, a second through hole corresponding to the first through hole is formed in the inner core, and the first through hole and the second through hole are communicated or closed through horizontal rotation of the inner core;
one end of the piston shaft passes through the liquid storage cavity from the outside of the liquid storage cavity and is connected with the inner core; the other end of the piston shaft is connected with the handle; a detachable fixed buckle is arranged on the piston shaft between the handle and the liquid storage cavity; the initial position of the sliding body is positioned at the tail part of the cylinder body;
the inside of barrel is for storing up medicine chamber.
The detachable fixing buckle is a hollow elastic cylindrical body, and an open slot is formed in the side face of the detachable fixing buckle.
And a sealing washer is arranged at the contact position of the liquid storage cavity and the piston shaft.
The needle head is connected with the interface tube of the barrel through the inserting interface.
The interface tube is provided with a sealing easy-to-tear tin foil.
The cross-sectional area of the first through hole is smaller than the area of the bottom surface of the 1/2 limiting groove; the second through hole has the same cross-sectional shape and size as the first through hole.
A first limiting bulge is arranged at the bottom of the inner core, and a second limiting bulge matched with the first limiting bulge is arranged in the limiting groove; the horizontal rotation angle of the inner core in the limiting groove is less than or equal to 180 degrees.
The utility model has the advantages that: through first through-hole on the inner core with second through-hole on the spacing recess when the inner core is rotatory, realize the intercommunication of first through-hole and second through-hole or close to make the stock solution chamber with store up medicine chamber intercommunication or cut off, conveniently mix the diluent in the stock solution intracavity and the solid medicine that stores up the medicine intracavity, mix the back, through handle rotary piston axle drives the rotation of inner core and makes first through-hole and second through-hole dislocation form closed, promotes the handle, and the piston axle drives the slider and follows the spout removes to the syringe needle direction for the liquid medicine after mixing is released from the syringe needle, accomplishes the injection.
The utility model discloses a stock solution chamber capacity is quantitative capacity with storage medicine chamber capacity to make the concentration after required skin test medicine mixes accurate, just join in marriage usefulness, one person's needle has effectively prevented pollution and cross infection, and article are prepared simply, effectively improve medical personnel's work efficiency, have saved a large amount of patient's latency.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the piston structure.
Fig. 3 is a schematic structural view of the detachable fixing buckle.
Fig. 4 is a schematic structural view when the sliding body is pushed to the front end of the cylinder body.
Wherein 1, a needle head; 2. a barrel; 3. a liquid storage cavity; 4. a piston; 5. a mouthpiece; 6. sealing the easy-to-tear tinfoil; 7. a plug interface; 8. a sliding body; 9. an inner core; 10. a piston shaft; 11. a handle; 12. a chute; 13. clamping the strip; 14. a limiting groove; 15. a first through hole; 16. a second through hole; 17. the buckle can be fixed in a detachable way; 18. an open slot; 19. a gasket is provided.
Detailed Description
According to fig. 1-4, the utility model discloses a syringe needle 1, barrel 2, stock solution chamber 3 and piston 4, the front end of barrel 2 is equipped with and is used for connecting the mouthpiece 5 of syringe needle 1, be equipped with sealed tin foil 6 that easily tears on the mouthpiece 5. The needle 1 is connected with the mouthpiece 5 of the barrel 2 through the plug-in interface 7. The liquid storage cavity 3 is connected to the tail part of the cylinder body 2. The inside of barrel 2 is for storing up medicine chamber.
The piston 4 comprises a sliding body 8, an inner core 9, a piston shaft 10 and a handle 11, a sliding groove 12 is formed in the inner wall of the cylinder body 2, a clamping strip 13 matched with the sliding groove 12 is arranged on the side wall of the sliding body 8, a limiting groove 14 is formed in the middle of the sliding body 8, and the inner core 9 is located in the limiting groove 14; the sliding body 8 and the inner core 9 are positioned at the tail part in the cylinder body 2.
A first through hole 15 is formed in the bottom of the limiting groove 14, a second through hole 16 corresponding to the first through hole 15 is formed in the inner core, and the first through hole 15 and the second through hole 16 are communicated or closed with each other through horizontal rotation of the inner core 9; the cross-sectional area of the first through hole 15 is smaller than the area of the bottom surface of the 1/2 limiting groove 14; the second through hole 16 has the same sectional shape and size as the first through hole 15. A first limiting bulge is arranged at the bottom of the inner core 9, and a second limiting bulge matched with the first limiting bulge is arranged in the limiting groove 14; the horizontal rotation angle of the inner core 9 in the limiting groove 14 is less than or equal to 180 degrees.
One end of the piston shaft passes through the liquid storage cavity 3 from the outside of the liquid storage cavity 3 and is connected with the inner core 9; and a sealing washer 19 is arranged at the contact position of the liquid storage cavity 3 and the piston shaft 10. The other end of the piston shaft 10 is connected with the handle 11; a detachable fixed buckle 17 is arranged on the piston shaft 10 between the handle 11 and the liquid storage cavity 3; the detachable fixed buckle 17 is a hollow elastic cylindrical body, and an open slot 18 is formed in the side surface of the detachable fixed buckle 17. The initial position of the sliding body 8 is located at the rear of the cylinder 2.
The liquid storage cavity 3 is internally provided with diluent, the liquid storage cavity is internally provided with solid medicine, the first through hole 15 and the second through hole 16 are staggered, and the liquid storage cavity 3 is separated from the liquid storage cavity 3. When the device is used, the detachable fixed buckle is removed, the piston shaft 10 drives the inner core 9 to rotate by rotating the handle 11, so that the first through hole 15 is communicated with the second through hole 16, diluent in the liquid storage cavity 3 enters the liquid storage cavity, the diluent is fully mixed with solid medicines, and then the handle 11 is rotated reversely, so that the first through hole 15 and the second through hole 16 are staggered, and the liquid storage cavity 3 are isolated; and removing the sealing easy-to-tear tin foil 6, inserting the needle head 1 on the mouthpiece 5, and pushing the handle 11 to perform injection.
Claims (7)
1. A disposable skin test syringe is characterized in that: the syringe comprises a needle, a barrel, a liquid storage cavity and a piston, wherein the front end of the barrel is provided with a mouthpiece for connecting the needle, and the liquid storage cavity is connected to the tail part of the barrel; the piston comprises a sliding body, an inner core, a piston shaft and a handle, a sliding groove is formed in the inner wall of the cylinder, a clamping strip matched with the sliding groove is arranged on the side wall of the sliding body, a limiting groove is formed in the middle of the sliding body, and the inner core is located in the limiting groove;
a first through hole is formed in the bottom of the limiting groove, a second through hole corresponding to the first through hole is formed in the inner core, and the first through hole and the second through hole are communicated or closed through horizontal rotation of the inner core;
one end of the piston shaft passes through the liquid storage cavity from the outside of the liquid storage cavity and is connected with the inner core; the other end of the piston shaft is connected with the handle; a detachable fixed buckle is arranged on the piston shaft between the handle and the liquid storage cavity; the initial position of the sliding body is positioned at the tail part of the cylinder body;
the inside of barrel is for storing up medicine chamber.
2. The single use skin test syringe of claim 1, wherein: the detachable fixing buckle is a hollow elastic cylindrical body, and an open slot is formed in the side face of the detachable fixing buckle.
3. The single use skin test syringe of claim 1, wherein: and a sealing washer is arranged at the contact position of the liquid storage cavity and the piston shaft.
4. The single use skin test syringe of claim 1, wherein: the needle head is connected with the interface tube of the barrel through the inserting interface.
5. The single use skin test syringe of claim 1, wherein: the interface tube is provided with a sealing easy-to-tear tin foil.
6. The single use skin test syringe of claim 1, wherein: the cross-sectional area of the first through hole is smaller than the area of the bottom surface of the 1/2 limiting groove; the second through hole has the same cross-sectional shape and size as the first through hole.
7. The single use skin test syringe of claim 1, wherein: a first limiting bulge is arranged at the bottom of the inner core, and a second limiting bulge matched with the first limiting bulge is arranged in the limiting groove; the horizontal rotation angle of the inner core in the limiting groove is less than or equal to 180 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921358217.4U CN211327448U (en) | 2019-08-21 | 2019-08-21 | Disposable skin test injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921358217.4U CN211327448U (en) | 2019-08-21 | 2019-08-21 | Disposable skin test injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211327448U true CN211327448U (en) | 2020-08-25 |
Family
ID=72128778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921358217.4U Expired - Fee Related CN211327448U (en) | 2019-08-21 | 2019-08-21 | Disposable skin test injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211327448U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113577456A (en) * | 2021-08-02 | 2021-11-02 | 南华大学 | Storage and injection integrated injector |
-
2019
- 2019-08-21 CN CN201921358217.4U patent/CN211327448U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113577456A (en) * | 2021-08-02 | 2021-11-02 | 南华大学 | Storage and injection integrated injector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200825 |