CN205698737U - A kind of intravenous injector - Google Patents
A kind of intravenous injector Download PDFInfo
- Publication number
- CN205698737U CN205698737U CN201620295249.4U CN201620295249U CN205698737U CN 205698737 U CN205698737 U CN 205698737U CN 201620295249 U CN201620295249 U CN 201620295249U CN 205698737 U CN205698737 U CN 205698737U
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- Prior art keywords
- syringe
- joint
- bell
- forms
- needle
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a kind of intravenous injector, include syringe, piston rod and syringe needle, described piston rod end connects the piston coordinated with described syringe, described syringe needle coupling is socketed on the syringe needle joint of syringe front end, described syringe needle is made up of a bell and spigot joint and a needle head body, described syringe front end forms syringe joint, and syringe outer wall front end forms location instruction projection；Described syringe joint forms arc port away from the end of syringe；Described bell and spigot joint afterbody forms rotation regulation wheel；Conciliation instruction projection is formed outside regulation wheel described rotation；Latch a is formed near the inside of needle head body at bell and spigot joint；It is connected between bell and spigot joint inwall with syringe joint and has choked flow piece；Described choked flow piece end forms latch b, and forms the semicircle arc port b of through described choked flow piece.Realize normally extracting medicinal liquid, and the too fast patient of making of transfusion speed will be caused to be sick in the stomach because of the power inequality of making or heart is uncomfortable etc. in transfusion.
Description
Technical field
This utility model belongs to medical apparatus and instruments, is specifically related to a kind of intravenous injector.
Background technology
Intravenous injection is a kind of therapy, i.e. the liquid substances such as blood, medicinal liquid, nutritional solution is injected directly in vein；The intravenous injection of transience is many is directly injected into vein with syringe, the most common " having an injection "；If the intravenous liquid of transience is more, medical personnel often accelerate injection speed, the situations such as some medical personnel's hand shaking also result in moment injection speed, but injection speed is too fast, to heart failure and pulmonary edema, particularly patient's Yi Fasheng infusion reaction of children's, old age, thoracic injury, heart failure, can become lethal severe reaction time serious.Domestic patent CN2014204040037 discloses a kind of intravenous injector, the valve seat of semi-spherical shape is formed in this patent bell and spigot joint, spherical valve ball is installed in valve seat, valve seat end is formed with step, back-up ring is installed on step, back-up ring outer wall and bell and spigot joint inwall interference fit, and back-up ring inwall forms interior projection, when using this patent to infuse, medicinal liquid only flows through from liquid seam excessively, flow velocity slower patient will not feel well, but this patent structure is complicated, cost is relatively high, and flow cannot regulate.
Summary of the invention
Technical problem to be solved in the utility model is: the deficiency existed for prior art, it is provided that a kind of simple in construction, it is possible to normally extract medicinal liquid, can slow down the intravenous injector of injection speed to some extent simultaneously.
For realizing the purpose of this utility model, it is achieved by the following technical solutions: a kind of intravenous injector, include syringe, piston rod and syringe needle, described piston rod end connects the piston coordinated with described syringe, described syringe needle coupling is socketed on the syringe needle joint of syringe front end, described syringe needle is made up of the bell and spigot joint of a plastic material and the needle head body of a metal material being fixedly connected on bell and spigot joint end, it is characterized in that: described syringe front end forms syringe joint, syringe outer wall front end forms location instruction projection；Described syringe joint forms arc port a away from the end of syringe；
Described bell and spigot joint afterbody forms rotation regulation wheel；Rotating outside regulation wheel described, corresponding location instruction raised position forms conciliation instruction projection；Described instruction projection width along clockwise direction of reconciling constantly reduces, and forms latch a at bell and spigot joint near the inside of needle head body；
It is connected between described bell and spigot joint inwall and syringe joint and has choked flow piece；
Forming the semicircle arc port b of through described choked flow piece on described choked flow piece, the end of described choked flow piece forms latch；
Described choked flow piece can be connected by engagement between latch a internal with bell and spigot joint；
Compared with prior art, the beneficial effects of the utility model are: when using this utility model extraction medicinal liquid, medicinal liquid enters from needle head body, finally flows in syringe through arc port and bell and spigot joint；When infusing, piston promotes the medicinal liquid in syringe to flow to needle head body, by the rotation regulation wheel that turns clockwise so that two arc port overlapping area reduce, made liquid seam reduce, thus when medicinal liquid flows through from arc port, makes medicinal liquid flow reduce simultaneously；Realizing normally extracting medicinal liquid, and use in transfusion bigger when trying hard to recommend dynamic piston rod, the medicinal liquid speed flowed out from needle head body can keep less flow velocity, the too fast patient of making of transfusion speed will be caused to be sick in the stomach because of the power inequality of making or heart discomfort etc..
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is structural blast figure schematic diagram of the present utility model.
Fig. 3 is bell and spigot joint internal structure schematic diagram of the present utility model.
Fig. 4 is syringe needle of the present utility model and bell and spigot joint junction structural representation.
1, syringe；11, location instruction projection；12, syringe needle joint；121, arc port a；2, piston rod；3, syringe needle；31, regulation wheel is rotated；311, regulation instruction projection；32, bell and spigot joint；321, latch a；33, needle head body；4, choked flow piece；411, latch b；412, arc port b.
Detailed description of the invention
Below according to accompanying drawing, detailed description of the invention of the present utility model is made a detailed explanation.
According to Fig. 1 to shown in 2, a kind of intravenous injector described in the present embodiment, include syringe 1, piston rod 2 and syringe needle 3, a kind of intravenous injector, include syringe, piston rod and syringe needle, described piston rod end connects the piston coordinated with described syringe, described syringe needle coupling is socketed on the syringe needle joint 12 of syringe front end, described syringe needle is made up of the bell and spigot joint 32 of a plastic material and the needle head body of a metal material being fixedly connected on bell and spigot joint end, it is characterized in that: described syringe 1 front end forms syringe joint 12, syringe outer wall front end forms location instruction protruding 11；Described syringe joint 12 forms arc port 121 away from the end of syringe 1；
Described bell and spigot joint 32 afterbody forms rotation regulation wheel 31；Rotating outside regulation wheel 31 described, corresponding location indicates protruding 11 positions to form conciliation instruction protruding 311；Described instruction protruding 311 width along clockwise direction of reconciling constantly reduces, and forms latch a321 at bell and spigot joint 32 near the inside of needle head body 33；
It is connected between described bell and spigot joint 32 inwall and syringe joint 12 and has choked flow piece 4,；
Forming the semicircle arc port b412 of through described choked flow piece on described choked flow piece 4, the end of described choked flow piece forms latch b411；
Described choked flow piece can be connected by engagement between latch a321 internal with bell and spigot joint；
When using this syringe extraction medicinal liquid, medicinal liquid enters from needle head body, finally flows in syringe through semicircular indentations and bell and spigot joint.When infusing, piston promotes the medicinal liquid in syringe to flow to needle head body, by rotating regulation wheel, changed liquid seam size, and made medicinal liquid breach from the latch with latch flow through, and so speed of extraction medicinal liquid is not affected by medical personnel's hands speed.So bigger when trying hard to recommend dynamic piston rod when using, the medicinal liquid speed that flows out from needle head body also can keep less flow velocity, the too fast patient of making of transfusion speed will be caused to be sick in the stomach because of the power inequality of making or heart is uncomfortable etc..
Syringe includes syringe, piston rod and described syringe needle, described piston rod end connects the piston coordinated with described syringe, the bell and spigot joint coupling of described syringe needle is socketed on the syringe needle joint of syringe front end, and the syringe needle of the present invention can be with the intravenous injector adapted of various different size models.
When using this utility model extraction medicinal liquid, medicinal liquid enters from needle head body, finally flows in syringe through arc port and bell and spigot joint.When infusing, piston promotes the medicinal liquid in syringe to flow to needle head body, by the rotation regulation wheel that turns clockwise so that two arc port overlapping area reduce, makes liquid seam reduce, thus when medicinal liquid flows through from arc port, scalable medicinal liquid flow size.So speed of extraction medicinal liquid is not affected by medical personnel's hands speed.So bigger when trying hard to recommend dynamic piston rod when using, the medicinal liquid speed that flows out from needle head body also can keep less flow velocity, the too fast patient of making of transfusion speed will be caused to be sick in the stomach because of the power inequality of making or heart is uncomfortable etc..
Claims (1)
1. an intravenous injector, include syringe, piston rod and needle head body, described piston rod end connects the piston coordinated with described syringe, described syringe needle coupling is socketed on the syringe needle joint of syringe front end, described syringe needle is made up of the bell and spigot joint of a plastic material and the needle head body of a metal material being fixedly connected on bell and spigot joint end, it is characterized in that: described syringe front end forms syringe joint, syringe outer wall front end forms location instruction projection；Described syringe joint forms arc port away from the end of syringe；Described bell and spigot joint afterbody forms rotation regulation wheel；Rotating outside regulation wheel described, corresponding location instruction raised position forms conciliation instruction projection；Described instruction projection width along clockwise direction of reconciling constantly reduces, and forms latch a at bell and spigot joint near the inside of needle head body；It is connected between described bell and spigot joint inwall and syringe joint and has choked flow piece；Forming the semicircle arc port b of through described choked flow piece on described choked flow piece, the end of described choked flow piece forms latch b；
Described choked flow piece can be connected by engagement between latch a internal with bell and spigot joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620295249.4U CN205698737U (en) | 2016-04-08 | 2016-04-08 | A kind of intravenous injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620295249.4U CN205698737U (en) | 2016-04-08 | 2016-04-08 | A kind of intravenous injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205698737U true CN205698737U (en) | 2016-11-23 |
Family
ID=57309217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620295249.4U Expired - Fee Related CN205698737U (en) | 2016-04-08 | 2016-04-08 | A kind of intravenous injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205698737U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108903940A (en) * | 2018-07-17 | 2018-11-30 | 苏州昶彭知识产权运营有限公司 | A kind of concentric circles pin electrode |
-
2016
- 2016-04-08 CN CN201620295249.4U patent/CN205698737U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108903940A (en) * | 2018-07-17 | 2018-11-30 | 苏州昶彭知识产权运营有限公司 | A kind of concentric circles pin electrode |
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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: 20161123 Termination date: 20170408 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |