CN104056319B - A kind of Medical medicine-adding device avoiding cross infection - Google Patents
A kind of Medical medicine-adding device avoiding cross infection Download PDFInfo
- Publication number
- CN104056319B CN104056319B CN201410279957.4A CN201410279957A CN104056319B CN 104056319 B CN104056319 B CN 104056319B CN 201410279957 A CN201410279957 A CN 201410279957A CN 104056319 B CN104056319 B CN 104056319B
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- syringe
- piston cylinder
- breather
- push
- piston
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Abstract
The present invention relates to a kind of Medical medicine-adding device avoiding cross infection, the afterbody of syringe is blind end, sidewall offers strip through-hole, push-pull device at fixed includes piston cylinder, piston, U-shaped connecting rod and push-pull handle, piston cylinder is sticked on syringe outer wall, on the sidewall of piston cylinder, corresponding strip through-hole is provided with passage, is provided with piston in piston cylinder, and piston is connected with push-pull handle by U-shaped connecting rod.Being provided with breather on the sidewall of syringe needle, the opening of breather is arranged towards needle holder, and breather offers air inlet on the sidewall of blind end, and the open end of this air inlet and breather is provided with air-filtering membrane.The drug feeding device simple in construction of the present invention, easy to use, cross infection to medicinal liquid when can be effectively prevented operating syringe, and the syringe needle of this chemicals dosing plant has breather, the air pressure balance inside and outside medicine bottle it is able to maintain that in taking out medicine process, make feeding operations more laborsaving, the work efficiency of dosing can be improved.
Description
Technical field
The present invention relates to technical field of medical instruments, be specifically related to a kind of Medical medicine-adding device avoiding cross infection.
Background technology
At present, the medicine adding syringe commonly used in hospital is common syringe, it is made up of syringe, piston and push rod, medical personnel are moved by push rod push-and-pull piston when operation, realizing the operation such as aspiration medicinal liquid, admixing medical solutions, the process made up a prescription is: is inserted by syringe in medicinal liquid bottle and extracts a small amount of medicinal liquid；Then extract syringe and insert in powdered medicine bottle, liquid medicine injection is entered in powdered medicine bottle, after medicated powder and medicinal liquid are completely dissolved, then extracting out in mixed liquor injection infusion bottle.But finding in actual use, medical personnel are when carrying out the operation such as aspiration medicinal liquid, admixing medical solutions, and finger can touch push rod, there is the contaminated possibility of medicinal liquid, it is easy to cause cross infection.And make up a prescription in process above-mentioned, owing to medicine bottle is for sealing structure, therefore can produce certain Negative Pressure Difference during operation, make operation require great effort very much.
Summary of the invention
It is an object of the invention to the deficiency for solving above-mentioned technical problem, it is provided that a kind of Medical medicine-adding device avoiding cross infection.
The present invention solves the deficiency of above-mentioned technical problem, be the technical scheme is that a kind of Medical medicine-adding device avoiding cross infection, including syringe, syringe needle, needle holder and push-pull device at fixed, syringe needle is fixedly installed in needle holder, and syringe is connected by head and needle holder；
The afterbody of described syringe is blind end, syringe along the circumferential direction offers strip through-hole by caudal sidewall, described push-pull device at fixed includes piston cylinder, piston, U-shaped connecting rod and push-pull handle, piston cylinder is the arc shell of one end open, piston cylinder is sticked at syringe by caudal outer wall, and the opening of piston cylinder is arranged towards the cephalad direction of syringe, described piston cylinder position of corresponding strip through-hole on the sidewall of blind end is provided with passage, realize connecting with passage by strip through-hole between piston cylinder and syringe, piston it is provided with in piston cylinder, piston is connected with push-pull handle by U-shaped connecting rod, the opening direction of described U-shaped connecting rod is contrary with the opening direction of piston cylinder, one end of U-shaped connecting rod is placed in piston cylinder and is fixedly connected with the piston, the other end of U-shaped connecting rod is placed in outer the fixing with push-pull handle of piston cylinder and is connected, the outer wall of described piston cylinder is provided with two guide rails along the axial direction of syringe, push-pull handle is fastened on two guide rails, push-pull handle can along the displacement of guide rail direction；
The sidewall of described syringe needle is provided with breather, breather is the cylindric body of one end open, the other end of breather is blind end, and this blind end is spininess, the opening of described breather is arranged towards needle holder, and breather offers air inlet on the sidewall of blind end, and the open end of this air inlet and breather is provided with air-filtering membrane, also being arranged with back-up ring on described syringe needle, back-up ring is arranged on the position between air inlet and the opening of breather.
The material of described needle holder is plastics.
Beneficial effect
The drug feeding device of the present invention is it can be avoided that operator's finger in dosing process touches the push rod and piston that can touch medicinal liquid, simple in construction, easy to use, cross infection to medicinal liquid when can be effectively prevented operating syringe, and the syringe needle of this chemicals dosing plant has breather, in taking out medicine process, it is able to maintain that the air pressure balance inside and outside medicine bottle, makes feeding operations more laborsaving, the work efficiency of dosing can be improved.
Accompanying drawing explanation
Fig. 1 is the structural representation of the drug feeding device of the present invention；
Fig. 2 is the drug feeding device of present invention structural representation when taking out medicine；
Labelling in figure: 1, syringe, 2, syringe needle, 3, needle holder, 4, strip through-hole, 5, piston cylinder, 6, piston, 7, U-shaped connecting rod, 8, push-pull handle, 9, breather, 10, air inlet, 11, back-up ring.
Detailed description of the invention
As shown in the figure: a kind of Medical medicine-adding device avoiding cross infection, including syringe 1, syringe needle 2, needle holder 3 and push-pull device at fixed, syringe needle 2 is fixedly installed in needle holder 3, and the material of described needle holder 3 is plastics.Syringe 1 is connected by head and needle holder 3.The afterbody of described syringe 1 is blind end, syringe 1 along the circumferential direction offers strip through-hole 4 by caudal sidewall, described push-pull device at fixed includes piston cylinder 5, piston 6, U-shaped connecting rod 7 and push-pull handle 8, piston cylinder 5 is the arc shell of one end open, piston cylinder 5 is sticked at syringe 1 by caudal outer wall, and the opening of piston cylinder 5 is arranged towards the cephalad direction of syringe 1, described piston cylinder 5 position of corresponding strip through-hole 4 on the sidewall of blind end is provided with passage, realize connecting with passage by strip through-hole 4 between piston cylinder 5 and syringe 1, piston 6 it is provided with in piston cylinder 5, piston 6 is connected with push-pull handle 8 by U-shaped connecting rod 7, the opening direction of described U-shaped connecting rod 7 is contrary with the opening direction of piston cylinder 5, one end of U-shaped connecting rod 7 is placed in interior the fixing with piston 6 of piston cylinder 5 and is connected, the other end of U-shaped connecting rod 7 is placed in outer the fixing with push-pull handle 8 of piston cylinder 5 and is connected, the outer wall of described piston cylinder 5 is provided with two guide rails along the axial direction of syringe 1, push-pull handle 8 is fastened on two guide rails, push-pull handle 8 can along the displacement of guide rail direction；The sidewall of described syringe needle 2 is provided with breather 9, breather 9 is the cylindric body of one end open, the other end of breather 9 is blind end, and this blind end is spininess, the opening of described breather 9 is arranged towards needle holder 3, and breather 9 offers air inlet 10 on the sidewall of blind end, the open end of this air inlet 10 and breather 9 is provided with air-filtering membrane, also being arranged with back-up ring 11 on described syringe needle 2, back-up ring 11 is arranged on the position between the opening of air inlet 10 and breather 9.
The use procedure of the drug feeding device of the present invention is as follows: when needing that the medicine in medicine bottle is extracted into syringe, first by the bottle stopper of syringe needle traverse medicine bottle, and syringe needle is pushed away always inward, until back-up ring withstands bottle stopper, then push-pull handle is promoted, push-pull handle is made to move to syringe needle direction, push-pull handle drives piston to move to syringe needle direction, make to be formed in syringe negative pressure, such that it is able to the medicinal liquid in medicine bottle is sucked in syringe by syringe needle, when needing medical liquid squeezing in syringe, reversely promote push-pull handle, push-pull handle is made to move to syringe needle rightabout, medicinal liquid in syringe is formed malleation, such that it is able to medicinal liquid is extruded, whole process herb liquid will not contact piston and connecting rod, it can be avoided that liquid medicine contamination, and in taking out medicine process, owing to forming negative pressure in medicine bottle, extraneous air can enter in medicine bottle through the opening of breather and air inlet, consistent with the air pressure that maintains inside and outside medicine bottle, make the process taking out medicine more laborsaving.
Claims (2)
1. the Medical medicine-adding device that can avoid cross infection, including syringe (1), syringe needle (2), needle holder (3) and push-pull device at fixed, syringe needle (2) is fixedly installed in needle holder (3), and syringe (1) is connected by head and needle holder (3), it is characterised in that:
The afterbody of described syringe (1) is blind end, syringe (1) is by along the circumferential direction offering strip through-hole (4) on caudal sidewall, described push-pull device at fixed includes piston cylinder (5), piston (6), U-shaped connecting rod (7) and push-pull handle (8), the arc shell that piston cylinder (5) is one end open, piston cylinder (5) is sticked at syringe (1) by caudal outer wall, the blind end flush of the blind end of piston cylinder (5) and syringe (1), and the opening of piston cylinder (5) is arranged towards the cephalad direction of syringe (1), described piston cylinder (5) position of corresponding strip through-hole (4) on the sidewall of blind end is provided with passage, realize connecting with passage by strip through-hole (4) between piston cylinder (5) and syringe (1), piston (6) it is provided with in piston cylinder (5), piston (6) is connected with push-pull handle (8) by U-shaped connecting rod (7), the opening direction of described U-shaped connecting rod (7) is contrary with the opening direction of piston cylinder (5), one end of U-shaped connecting rod (7) is placed in interior the fixing with piston (6) of piston cylinder (5) and is connected, the other end of U-shaped connecting rod (7) is placed in that piston cylinder (5) is fixing with push-pull handle (8) outward to be connected, the outer wall of described piston cylinder (5) is provided with two guide rails along the axial direction of syringe (1), push-pull handle (8) is fastened on two guide rails, push-pull handle (8) can along the displacement of guide rail direction；
The sidewall of described syringe needle (2) is provided with breather (9), the cylindric body that breather (9) is one end open, the other end of breather (9) is blind end, and this blind end is spininess, the opening of described breather (9) is arranged towards needle holder (3), and breather (9) offers air inlet (10) on the sidewall of blind end, the open end of this air inlet (10) and breather (9) is provided with air-filtering membrane, described syringe needle (2) is also arranged with back-up ring (11), back-up ring (11) is arranged on the position between the opening of air inlet (10) and breather (9).
2. a kind of Medical medicine-adding device avoiding cross infection as claimed in claim 1, it is characterised in that: the material of described needle holder (3) is plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410279957.4A CN104056319B (en) | 2014-06-23 | 2014-06-23 | A kind of Medical medicine-adding device avoiding cross infection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410279957.4A CN104056319B (en) | 2014-06-23 | 2014-06-23 | A kind of Medical medicine-adding device avoiding cross infection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104056319A CN104056319A (en) | 2014-09-24 |
| CN104056319B true CN104056319B (en) | 2016-06-29 |
Family
ID=51544432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410279957.4A Expired - Fee Related CN104056319B (en) | 2014-06-23 | 2014-06-23 | A kind of Medical medicine-adding device avoiding cross infection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104056319B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2286002C (en) * | 1997-04-10 | 2008-01-29 | Andrew N. Lamborne | Gaz syringe and package therefor |
| KR100517198B1 (en) * | 2003-03-26 | 2005-10-28 | 송경진 | Reversible vein resin needle set for one time use |
| CN2936283Y (en) * | 2006-07-25 | 2007-08-22 | 陈庆强 | Anti-pollution seal sleeve for injector |
| CN201022891Y (en) * | 2007-01-23 | 2008-02-20 | 韩明 | Syringe |
| CN101204598A (en) * | 2007-11-28 | 2008-06-25 | 魏国 | Core bar component of injector and injector installing it |
| CN203060485U (en) * | 2013-02-17 | 2013-07-17 | 郑玲 | Syringe |
| CN203971034U (en) * | 2014-06-23 | 2014-12-03 | 河南科技大学第一附属医院 | A kind of Medical medicine-adding device of avoiding cross infection |
-
2014
- 2014-06-23 CN CN201410279957.4A patent/CN104056319B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN104056319A (en) | 2014-09-24 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Xianru Inventor after: Sun Wei Inventor after: Li Ya Inventor before: Tian Xiaotong |
|
| COR | Change of bibliographic data | ||
| C14 | Grant of patent or utility model | ||
| 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: 20160629 Termination date: 20170623 |