CN203227137U - Pre-filled syringe - Google Patents
Pre-filled syringe Download PDFInfo
- Publication number
- CN203227137U CN203227137U CN 201320131629 CN201320131629U CN203227137U CN 203227137 U CN203227137 U CN 203227137U CN 201320131629 CN201320131629 CN 201320131629 CN 201320131629 U CN201320131629 U CN 201320131629U CN 203227137 U CN203227137 U CN 203227137U
- Authority
- CN
- China
- Prior art keywords
- push rod
- piston
- syringe
- charge injector
- injector according
- 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
- 229940071643 prefilled syringe Drugs 0.000 title abstract 6
- 241001149930 Protura <class> Species 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000012856 packing Methods 0.000 abstract 1
- 238000011010 flushing procedure Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 229940079593 drug Drugs 0.000 description 2
- 210000003811 finger Anatomy 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 210000003813 thumb Anatomy 0.000 description 2
- 230000002792 vascular Effects 0.000 description 2
- HTTJABKRGRZYRN-UHFFFAOYSA-N Heparin Chemical compound OC1C(NC(=O)C)C(O)OC(COS(O)(=O)=O)C1OC1C(OS(O)(=O)=O)C(O)C(OC2C(C(OS(O)(=O)=O)C(OC3C(C(O)C(O)C(O3)C(O)=O)OS(O)(=O)=O)C(CO)O2)NS(O)(=O)=O)C(C(O)=O)O1 HTTJABKRGRZYRN-UHFFFAOYSA-N 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 208000007536 Thrombosis Diseases 0.000 description 1
- 206010044565 Tremor Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000010241 blood sampling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229960002897 heparin Drugs 0.000 description 1
- 229920000669 heparin Polymers 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
Images
Abstract
The utility model provides a pre-filled syringe. The pre-filled syringe comprises a syringe tube and a piston, the piston and the inner wall of the syringe tube form an accommodating cavity, the piston is divided into a front end and a tail end, the tail end of the piston is connected with a push rod connector, and a push rod is arranged at the tail end of the push rod connector. According to the pre-filled syringe, a combination of the push rod connector and the push rod replaces a core rod of a common pre-filled syringe, the push rod serves as an accessory to be configured for usage, the pre-filled syringe is reasonable in structure, the overall packing size is reduced, and the usage is safe and reliable. The push rod can be repeatedly used after being disinfected, so that the resources are saved and the costs are reduced.
Description
Technical field
The present invention relates to injector assembly, particularly relate to the irrigating syringe that is pre-charged with medicinal liquid for cleaning procedure, be used for vascular access device (VAD).
Background technology
Vascular access device (VAD) is the therapy equipment of using always, comprises the IV conduit.The VAD that two kinds of general categorys are arranged: peripheral central venous catheter (PICC) and central venous catheter (CVC).In the VAD use, need safeguard accordingly it, otherwise VAD can stop up the influence treatment.Formulated corresponding rule of operation according to the characteristics of VAD, comprised cleaning course in this rule of operation, cleaning course is also referred to as flushing process or catheters irrigation, and this is the important component part of VAD rule of operation.Generally be recommended in conduit place after, before the fluid infusion and before medication, blood sampling, transfusion and parenteral absorption and afterwards, carry out flushing process.The purpose of these flushing processes is, confirms conduit free, avoids the medicine incompatibility, guarantees that complete drug dose uses, prevents thrombosis and blood infection danger is minimized.Flushing process needs rinse solution dissimilar and amount, and the most frequently used is normal saline and or heparin lock solution.
Because of the type difference of conduit, the type of rinse solution and consumption are also different.What the volume of rinse solution was the most frequently used is the scope of 1ml-20ml.At present, precharging type syringe specification on the market has 3ml, 5ml and 10ml, its structure mainly comprises syringe, core bar, piston, behind the core bar one end piston set in suit and the syringe, formed container cavity between piston and needle cylinder wall, rinse solution does not place container cavity when using, and core bar is extracted syringe fully out, packaging volume is bigger, particularly the 10ml specification.Because the core bar protruded length of syringe is bigger, easily core bar to be broken off with the fingers and thumb partially or deviate from syringe, the precharging type syringe of having to more renew brings inconvenience.
Summary of the invention
The technical problem to be solved in the present invention is: pre-charge injector core bar protruded length is big, and easily break off with the fingers and thumb partially or deviate from syringe, and the bulky problem of injector package.
Technical scheme of the present invention: a kind of pre-charge injector, comprise syringe, piston, piston and syringe inwall form container cavity, and described piston is divided into front end and end, and its end is connected with the push rod joint, and push rod is connected the end of push rod joint.
Described push rod joint front end is provided with external screw thread, with the screw-internal thread fit of piston end, to connect rubber piston.
Described push rod connector end is provided with empennage, and the terminal inboard of empennage is provided with the groove fit of projection and push rod front end.4 of the preferred numbers of empennage number.
Described push rod material is rustless steel, and the rear end arranges circle and pushes away handle.
The conehead end of described syringe is provided with safe helmet, with the locking syringe.
The beneficial effect of tool of the present invention: use the combination of push rod joint and push rod to replace the core bar of pre-charge injector, push rod is as adnexa, and configuration is used, and has dwindled the packaging volume of pre-charge injector.Simultaneously, pusher section can reuse, and the push rod of metal material makes to push hard on time and can not tremble.This preform injection device project organization is reasonable, makes safer reliable.
Description of drawings
The structural representation of Fig. 1 pre-charge injector of the present invention;
The vertical view of Fig. 2 pre-charge injector of the present invention;
The structural representation of Fig. 3 push rod joint of the present invention;
The vertical view of Fig. 4 push rod joint of the present invention;
Fig. 5 the present invention has the structural representation of the push rod joint of rubber piston;
The structural representation of Fig. 6 push rod of the present invention;
The connection diagram of Fig. 7 push rod joint of the present invention and push rod;
Fig. 8 push rod of the present invention pushes the structural representation behind the syringe;
Among the figure: 1 syringe, 2 push rod joints, 21 empennages, 22 external screw threads, 23 projectioies, 3 push rods, 31 grooves, 32 push away handle, 4 pistons, 41 piston nose, 42 piston end, 5 safe helmets.
The specific embodiment
Shown in accompanying drawing 1-8, the pre-charge injector of present embodiment comprises syringe 1, piston 4, push rod joint 2 and safe helmet 5 compositions.The front end of push rod joint 2 arranges external screw thread 22, and with the female piston 4 of connecting band, the rear end arranges 4 empennages 21, and the terminal inboard of empennage 21 is provided with projection 23.To the push rod joint of rubber piston be installed, be positioned over the end in the syringe 1, front end is installed safe helmet 5, and the cavity of formation is used for storing flushing liquor.Described pusher section is set to a metal pushrod 3, and its front end is provided with all grooves 31, and the rear end is provided with and pushes away handle 32.During use, push rod 3 front ends insert in the push rod joint 2 of pre-charge injector part, and the groove 31 of assurance push rod 3 front ends matches with the projection 23 of empennage 21 ends of push rod joint 2, pins then and pushes away handle 32, pushes hard the inserting needle tube and gets final product.
Claims (7)
1. a pre-charge injector comprises syringe, piston, and piston and syringe inwall form container cavity, it is characterized in that described piston is divided into front end and end, and its end is connected with the push rod joint, and push rod is connected the end of push rod joint.
2. pre-charge injector according to claim 1 is characterized in that, described push rod joint front end is provided with external screw thread, with the screw-internal thread fit of piston end, to connect rubber piston.
3. pre-charge injector according to claim 1 and 2 is characterized in that, described push rod connector end is provided with empennage, and the terminal inboard of empennage is provided with the groove fit of projection and push rod front end.
4. pre-charge injector according to claim 3 is characterized in that, 4 of empennage numbers.
5. pre-charge injector according to claim 1 is characterized in that, described push rod material is rustless steel.
6. pre-charge injector according to claim 1 is characterized in that, putting back-end arranges circle and pushes away handle.
7. pre-charge injector according to claim 1 is characterized in that, the conehead end of described syringe is provided with safe helmet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320131629 CN203227137U (en) | 2013-03-22 | 2013-03-22 | Pre-filled syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320131629 CN203227137U (en) | 2013-03-22 | 2013-03-22 | Pre-filled syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203227137U true CN203227137U (en) | 2013-10-09 |
Family
ID=49283288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320131629 Expired - Fee Related CN203227137U (en) | 2013-03-22 | 2013-03-22 | Pre-filled syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203227137U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104127939A (en) * | 2014-05-21 | 2014-11-05 | 金富康 | Injector with detachable core rod |
| CN108606803A (en) * | 2018-05-09 | 2018-10-02 | 杨丹 | A kind of special syringe and its can automated needle changeover medical treatment blood drawing robot |
-
2013
- 2013-03-22 CN CN 201320131629 patent/CN203227137U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104127939A (en) * | 2014-05-21 | 2014-11-05 | 金富康 | Injector with detachable core rod |
| CN108606803A (en) * | 2018-05-09 | 2018-10-02 | 杨丹 | A kind of special syringe and its can automated needle changeover medical treatment blood drawing robot |
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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: 20131009 Termination date: 20180322 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |