CN203989294U - Novel safety syringe - Google Patents
Novel safety syringe Download PDFInfo
- Publication number
- CN203989294U CN203989294U CN201420399663.0U CN201420399663U CN203989294U CN 203989294 U CN203989294 U CN 203989294U CN 201420399663 U CN201420399663 U CN 201420399663U CN 203989294 U CN203989294 U CN 203989294U
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- CN
- China
- Prior art keywords
- syringe
- push rod
- needle
- conflict piece
- fixed block
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Abstract
The utility model discloses a kind of Novel safety syringe, wrap described push rod and be hollow form, one end that described push rod is provided with piston is provided with sealing-plug, described sealing-plug and push rod inwall fit tightly, and described needle stand is located in syringe, and it is provided with conflict piece in needle tubing one end dorsad, described conflict piece is provided with elastic component between a side of needle tubing and syringe, in described syringe, be provided with the fixation kit for propping up conflict piece, in the time that push rod is pushed into syringe bottom, fixation kit separates with conflict piece.Novel safety syringe of the present utility model, in the time that push rod is pushed into syringe bottom, fixation kit will separate with conflict piece, and needle stand will, towards syringe internal motion under the effect of elastic component, reach an effect of packing up syringe needle so afterwards, due to the setting of fixation kit, the elastic component elastic force here just does not need to limit, and its elastic force is the bigger the better, and has so just reduced and has detected together operation, reduce the production cost of syringe, and used more stable.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, relates in particular a kind of Novel safety syringe.
Background technology
Disposable syringe of the prior art; comprise syringe needle, syringe and push rod; be provided with protection needle guard at syringe needle place; its use procedure goes down the protection needle guard that is arranged on syringe needle place to carry out a series of action again; finally syringe is thrown away in refuse receptacle or other containers; at this time the syringe needle of syringe exposes, and is easy to hurt treatment people.
Having publication No. is that the patent of CN 102872506A discloses a kind of Medical safety syringe, by needle assembly, injector assembly, entry needle the automatic recovery protector forms jointly, entry needle the automatic recovery protector is by front plug, spring and pull bar composition, needle assembly has outer hoop, needle tubing, needle stand, sealing ring forms jointly, injector assembly is by urceolus, push rod, the still syringe of this structure of piston composition, during due to being connected between front plug and piston, frictionally connects, and in the process of recovery needle assembly, front plug will separate with piston, if spring force is excessive, will appear at piston and not arrive urceolus bottom time, front plug has just first separated with piston, or spring force is too small, will appear at piston has arrived behind urceolus bottom, front plug does not separate with piston, appearance cannot be regained the problem of entry needle, so the selection of spring is just had to very high requirement, its pulling force is greater than the quality summation of front plug and needle stand and needle tubing, between 0.1 ~ 1N, not only just stable not (frictional force between front plug and piston is affected by environment large) of use procedure, and need to increase the step of detection springs pulling force in the process of producing at syringe, increase the production cost of syringe.
Utility model content
The deficiency existing for prior art, the purpose of this utility model is to provide the Novel safety syringe that a kind of use procedure is stable, production cost is low.
For achieving the above object, this utility model provides following technical scheme: a kind of Novel safety syringe, comprise syringe needle, syringe and push rod, described syringe needle comprises needle tubing and is set in the needle stand on needle tubing, described push rod is hollow form, one end that described push rod is provided with piston is provided with sealing-plug, described sealing-plug and push rod inwall fit tightly, described needle stand is located in syringe, it is provided with conflict piece in needle tubing one end dorsad, described conflict piece is provided with elastic component between a side of needle tubing and syringe, in described syringe, be provided with the fixation kit for propping up conflict piece, in the time that push rod is pushed into syringe bottom, fixation kit separates with conflict piece.
By adopting technique scheme, in the time that syringe is produced, elastic component will compressed energy storage, withstand needle stand by the cooperation between fixation kit and conflict piece, prevent needle stand because the reason of elastic component produces displacement, in the time that push rod is pushed into syringe bottom, fixation kit will separate with conflict piece, needle stand will be towards syringe internal motion under the effect of elastic component afterwards, needle tubing will be taken to push rod inside by needle stand simultaneously, reach like this effect of packing up syringe needle, withstand needle stand by the cooperation between fixation kit and conflict piece, whether can excessive too small problem with regard to the elastic force of not worrying spring, as long as the elastic force of spring is enough large, in the process of producing at syringe, just do not need to increase the step of detection springs pulling force, reduce the production cost of syringe, in the process using, be not easy to be subject to the impact of environment.
This utility model is further set to: described fixation kit comprises fixed block and is opened in the holddown groove on syringe inwall, described fixed block is embedded in holddown groove, and be connected with holddown groove bottom land elasticity, described fixed block stretches out holddown groove, and conflicts and be connected with conflict piece.
One end of the relative sealing-plug of described push rod is provided with wedge, and in the time that push rod is pushed into syringe bottom, wedge is conflicted and is connected with fixed block.
Described fixed block is provided with lozenges, and in the time that push rod is pushed into syringe bottom, the inclined-plane of this lozenges and wedge offsets.
On described push rod, be also provided with sealing-plug is carried out to spacing limit assembly.
By adopting technique scheme, because fixed block is connected with the bottom land elasticity of holddown groove, so fixed block will be pushed out the notch of holddown groove, and conflict and be connected with conflict piece, so just can effectively withstand conflict piece, prevent from conflicting piece because the reason of elastic component, towards syringe internal motion, occur that syringe needle cannot be fixed on the problem on syringe, and by the setting of wedge, when push rod arrives syringe bottom, wedge will back down fixed block, make the bottom land motion of fixed block towards holddown groove, fixed block will be separated with conflict piece like this, both be communicated with the space of conflict piece and push rod inside, the elastic force of elastic component will be released, promotion conflict piece enters into the space of push rod inside, needle stand and needle tubing will be along with entering in push rod simultaneously, reach like this object of packing up syringe needle, the setting of the lozenges on fixed block, make the conflict between a little wedges and fixed block more level and smooth, be not easy to occur the problem of blocking, simultaneously by the setting of limit assembly, just can play a spacing effect to sealing-plug, effectively prevent in the process using, there is the problem of slippage in sealing-plug.
Brief description of the drawings
Fig. 1 is the cutaway view under Novel safety syringe naturalness of the present utility model;
Fig. 2 is the cutaway view under Novel safety syringe syringe needle collapsed state of the present utility model;
Fig. 3 is the enlarged drawing of A portion in Fig. 1.
In figure: 1, syringe needle; 11, needle tubing; 12, needle stand; 121, conflict piece; 2, syringe; 21, elastic component; 22, fixation kit; 221, fixed block; 222, holddown groove; 3, push rod; 31, sealing-plug; 32, wedge; 4, limit assembly.
Detailed description of the invention
Shown in 3, a kind of Novel safety syringe of the present embodiment, comprise syringe needle 1, syringe 2 and push rod 3, described syringe needle 1 comprises needle tubing 11 and is set in the needle stand 12 on needle tubing 11, described push rod 3 is hollow form, one end that described push rod 3 is provided with piston is provided with sealing-plug 31, described sealing-plug 31 fits tightly with push rod 3 inwalls, described needle stand 12 is located in syringe 2, it is provided with conflict piece 121 in needle tubing 11 one end dorsad, described conflict piece 121 is provided with elastic component 21 between a side of needle tubing 11 and syringe 2, in described syringe 2, be provided with the fixation kit 22 for propping up conflict piece 121, in the time that push rod 3 is pushed into syringe 2 bottom, fixation kit 22 separates with conflict piece 121.
By adopting technique scheme, in the time that syringe is produced, elastic component 21 will compressed energy storage, withstand needle stand 12 by the cooperation between fixation kit 22 and conflict piece 121, prevent needle stand 12 because the reason of elastic component 21 produces displacement, in the time that push rod 3 is pushed into syringe 2 bottom, fixation kit 22 will separate with conflict piece 121, needle stand 12 will be towards syringe 2 internal motions under the effect of elastic component 21 afterwards, needle tubing 11 will be taken to push rod 3 inside by needle stand 12 simultaneously, reach like this effect of packing up syringe needle 1, withstand needle stand 12 by the cooperation between fixation kit 22 and conflict piece 121, whether can excessive too small problem with regard to the elastic force of not worrying spring, as long as the elastic force of spring is enough large, in the process of producing at syringe, just do not need to increase the step of detection springs pulling force, reduce the production cost of syringe, in the process using, be not easy to be subject to the impact of environment, wherein the sealing-plug 31 is here made for elastomeric material, inside that like this will push rod 3 naturally has a frictional force, this frictional force be greater than sealing-plug 31 self in, the elastic component 21 is here provided with two, be separately positioned on the both sides of needle stand 12, nature conflict piece 121 also separates two resistance surfaces, inconsistent respectively at two elastic components 21, this elastic component 21 is high elastic force spring simultaneously, more than elastic force all can both reach 1N, by the setting of sealing-plug 31, just can avoid the reason arranging due to push rod 3 hollows, cause syringe to lose original function.
Described fixation kit 22 comprises fixed block 221 and is opened in the holddown groove 222 on syringe 2 inwalls, described fixed block 221 is embedded in holddown groove 222, and be connected with holddown groove 222 bottom land elasticity, described fixed block 221 stretches out holddown groove 222, and conflicts and be connected with conflict piece 121.
By adopting technique scheme, because fixed block 221 is connected with the bottom land elasticity of holddown groove 222, so fixed block 221 will be pushed out the notch of holddown groove 222, and conflict and be connected with conflict piece 121, so just can effectively withstand conflict piece 121, prevent from conflicting piece 121 because the reason of elastic component 21, towards syringe 2 internal motions, occur that syringe needle 1 cannot be fixed on the problem on syringe 2, between a side of holddown groove 222 bottom lands and bottom land, be provided with a spring at fixed block 221, reach like this effect that an elasticity connects, the side of fixed block 221 is provided with a hemispheric projection simultaneously, also the place's of offering suitable semi-spherical grooves with it on the cell wall of same holddown groove 222, so just can reach an effect spacing to fixed block 221, this fixed block 221 adopts plastic material to make simultaneously, so itself there is certain elasticity, so when propelling movement strength acquires a certain degree, projection can skid off in semi-spherical grooves, certainly the elastic force that is arranged on the spring of bottom land is less than this maximum propelling movement power, so like this when push rod 3 does not push, just can withstand by fixed block 221 effect of needle stand 12.
One end of described push rod 3 relative sealing-plugs 31 is provided with wedge 32, and in the time that push rod 3 is pushed into syringe 2 bottom, wedge 32 is conflicted and is connected with fixed block 221.
By adopting technique scheme, by the setting of wedge 32, when push rod 3 arrives syringe 2 bottoms, wedge 32 will offset with fixed block 221, wedge 32 will back down fixed block 221 simultaneously, fixed block 221 will overcome the obstruction of hemispherical bumps, and the elastic force of this spring, towards the bottom land motion of holddown groove 222, after in fixed block 221 is retracted into holddown groove 222 completely, fixed block 221 will unclamp conflict piece 121, conflict piece 121 will be because of under the effect of elastic component 21 like this, enter in push rod 3 with needle stand 12 and needle tubing 11, complete an effect of reclaiming syringe needle 1.
Described fixed block 221 is provided with lozenges, and in the time that push rod 3 is pushed into syringe 2 bottom, the inclined-plane of this lozenges and wedge 32 offsets.
By adopting technique scheme, the setting of the lozenges on fixed block 221, makes the conflict between a little wedges 32 and fixed block 221 more level and smooth, is not easy to occur the problem of blocking.
On described push rod 3, be also provided with sealing-plug 31 is carried out to spacing limit assembly 4.
By adopting technique scheme, limit assembly 4 comprises that a centre has a plastic sheet of through hole, the shape size of intermediate throughholes and sealing-plug 31 are suitable, in push rod 3, be provided with the placing trough that this plastic sheet of a confession is placed, plastic sheet is located in placing trough, a side of plastic sheet is connected by spring with the bottom land of placing trough simultaneously, so just can reach the effect of plastic sheet slippage in placing trough, by the slippage of plastic sheet, the effect that just can change plastic sheet and whether block sealing-plug 31, just can effectively reach the effect spacing to sealing-plug 31.
The utlity model has following advantage: in the time that push rod 3 is pushed into syringe 2 bottom, fixation kit 22 will separate with conflict piece 121, needle stand 12 will be towards syringe 2 internal motions under the effect of elastic component 21 afterwards, reach like this effect of packing up syringe needle 1, due to the setting of fixation kit 22, elastic component 21 elastic force here just do not need to limit, its elastic force is the bigger the better, so just reduce and detected together operation, reduced the production cost of syringe, and used more stable, in the time that syringe is produced, elastic component 21 will compressed energy storage, withstand needle stand 12 by the cooperation between fixation kit 22 and conflict piece 121, prevent needle stand 12 because the reason of elastic component 21 produces displacement, in the time that push rod 3 is pushed into syringe 2 bottom, fixation kit 22 will separate with conflict piece 121, needle stand 12 will be towards syringe 2 internal motions under the effect of elastic component 21 afterwards, needle tubing 11 will be taken to push rod 3 inside by needle stand 12 simultaneously, reach like this effect of packing up syringe needle 1, withstand needle stand 12 by the cooperation between fixation kit 22 and conflict piece 121, whether can excessive too small problem with regard to the elastic force of not worrying spring, as long as the elastic force of spring is enough large, in the process of producing at syringe, just do not need to increase the step of detection springs pulling force, reduce the production cost of syringe, in the process using, be not easy to be subject to the impact of environment, wherein the sealing-plug 31 is here made for elastomeric material, inside that like this will push rod 3 naturally has a frictional force, this frictional force be greater than sealing-plug 31 self in, the elastic component 21 is here provided with two, be separately positioned on the both sides of needle stand 12, nature conflict piece 121 also separates two resistance surfaces, inconsistent respectively at two elastic components 21, this elastic component 21 is high elastic force spring simultaneously, more than elastic force all can both reach 1N.
The above is only preferred implementation of the present utility model, and protection domain of the present utility model is also not only confined to above-described embodiment, and all technical schemes belonging under this utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, in the some improvements and modifications that do not depart under this utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. a Novel safety syringe, comprise syringe needle, syringe and push rod, described syringe needle comprises needle tubing and is set in the needle stand on needle tubing, it is characterized in that: described push rod is hollow form, one end that described push rod is provided with piston is provided with sealing-plug, described sealing-plug and push rod inwall fit tightly, described needle stand is located in syringe, it is provided with conflict piece in needle tubing one end dorsad, described conflict piece is provided with elastic component between a side of needle tubing and syringe, in described syringe, be provided with the fixation kit for propping up conflict piece, in the time that push rod is pushed into syringe bottom, fixation kit separates with conflict piece.
2. Novel safety syringe according to claim 1, it is characterized in that: described fixation kit comprises fixed block and is opened in the holddown groove on syringe inwall, described fixed block is embedded in holddown groove, and be connected with holddown groove bottom land elasticity, described fixed block stretches out holddown groove, and conflicts and be connected with conflict piece.
3. Novel safety syringe according to claim 2, is characterized in that: one end of the relative sealing-plug of described push rod is provided with wedge, and in the time that push rod is pushed into syringe bottom, wedge is conflicted and is connected with fixed block.
4. Novel safety syringe according to claim 3, is characterized in that: described fixed block is provided with lozenges, and in the time that push rod is pushed into syringe bottom, the inclined-plane of this lozenges and wedge offsets.
5. according to the Novel safety syringe described in claim 1 or 2 or 3 or 4, it is characterized in that: on described push rod, be also provided with sealing-plug is carried out to spacing limit assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420399663.0U CN203989294U (en) | 2014-07-18 | 2014-07-18 | Novel safety syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420399663.0U CN203989294U (en) | 2014-07-18 | 2014-07-18 | Novel safety syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203989294U true CN203989294U (en) | 2014-12-10 |
Family
ID=52029378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420399663.0U Expired - Fee Related CN203989294U (en) | 2014-07-18 | 2014-07-18 | Novel safety syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203989294U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115054781A (en) * | 2022-05-26 | 2022-09-16 | 扬州美德莱医疗用品股份有限公司 | Connecting structure of safety needle shield and needle seat |
-
2014
- 2014-07-18 CN CN201420399663.0U patent/CN203989294U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115054781A (en) * | 2022-05-26 | 2022-09-16 | 扬州美德莱医疗用品股份有限公司 | Connecting structure of safety needle shield and needle seat |
| CN115054781B (en) * | 2022-05-26 | 2024-05-31 | 扬州美德莱医疗用品股份有限公司 | Connection structure of safety needle cover and needle seat |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20170718 |