CN203829413U - Safe vein needle - Google Patents
Safe vein needle Download PDFInfo
- Publication number
- CN203829413U CN203829413U CN201420175493.8U CN201420175493U CN203829413U CN 203829413 U CN203829413 U CN 203829413U CN 201420175493 U CN201420175493 U CN 201420175493U CN 203829413 U CN203829413 U CN 203829413U
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- CN
- China
- Prior art keywords
- needle
- saddle
- needle stand
- syringe needle
- safe vein
- 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.)
- Withdrawn - After Issue
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model provides a safe vein needle which comprises a needle base, a needle sleeve, a hose, a connector and a needle head. The needle head is sleeved with the needle sleeve, the two ends of the hose are communicated with the needle head and the needle base respectively, and the safe vein needle further comprises a sliding part, a handle and a limiting mechanism. The needle base is in a tube shape, the needle head is fixed to one end of the needle base in a communicated mode, and the hose is connected with the other end of the needle base. The sliding part is in a tube shape, the two ends of the sliding part are open, and the needle base is movably sleeved with the sliding part. The length of the sliding part in the moving direction is larger than the length of the needle head. The length of the needle base in the axial direction is larger than the length of the needle head. The limiting mechanism is arranged on the sliding part and the needle base. The handle is fixed to the needle base, and the handle abuts against the sliding part. The sliding part slides on the needle base to block the needle head, so that safety of treating the needle head after blood taking is improved substantially; because a spring type needle head is prevented from being used, pains of a patient are relieved.
Description
Technical field
This utility model relates to a kind of safe vein pin.
Background technology
At present, conventional disposable vein pin before use, need to be to needle guard on pinhead sleeve with protection syringe needle, for example, prevent that syringe needle is bent or collision etc.When use, while pulling out needle guard, easily cause and stab danger, but real danger disposal stage after transfusion completes, from being extracted in transfusion person's body, in the time carrying out waste disposal, no matter put into professional process cartridge or bring needle guard, the danger of being all easily wounded by stabbing, causes the serious consequences such as medical staff infection.
For this defect, some intravenous needles have adopted the technological means of retractable needle, after transfusion completes, utilize the isostructural elastic force of spring, syringe needle are retracted in the structures such as a protective sleeve for the protection of syringe needle.So, although can effectively protect syringe needle, avoid medical worker to be wounded by stabbing, but can cause patient painful greatly because of the mechanical action of needle retractable.
Utility model content
The technical problems to be solved in the utility model is in order to overcome the defect that prior art safety is lower, easily aggravate patient suffering, the intravenous needle that a kind of safety is higher, patient suffering is less to be provided.
This utility model is to solve above-mentioned technical problem by following technical proposals:
A kind of safe vein pin, it includes a needle stand, a needle guard, a flexible pipe, a joint and a syringe needle, described needle guard is sheathed on described syringe needle, the two ends of described flexible pipe are communicated with described joint and described needle stand respectively, its feature is, described safe vein pin also includes a saddle, leader and a position-limit mechanism, and described needle stand is tubular, one end of described needle stand is fixed and is communicated with described syringe needle, the other end and described hose connection;
Described saddle is the tubular of both ends open and movable being sheathed on described needle stand, and the length of described saddle on activity direction is greater than the length of described syringe needle;
The axial length of described needle stand is greater than the length of described syringe needle;
Described position-limit mechanism is arranged at described saddle and described needle stand, for sliding into and cover completely after described syringe needle at described saddle, described saddle is fixed on described needle stand;
Described handle and described needle stand fix, and described handle is near described saddle.Wherein, flexible pipe is the conventional soft tube as blood transfusion tube etc. of field of medical products, does not repeat herein.
That is to say, intravenous needle of the present utility model, needle stand will be longer than syringe needle, and so, the saddle of above-mentioned tubular just can slidably reciprocate on needle stand, makes syringe needle covered and completely expose between two states and switch by saddle.Position-limit mechanism moves for limiting saddle.
When use, under original state, saddle is fixed in needle stand by position-limit mechanism, and (being the state that syringe needle exposes completely), first takes out needle guard, infuses; After having infused, remove fixing of saddle and needle stand, saddle is slided to saddle and covers syringe needle completely to syringe needle direction, now saddle is fixed in again on needle stand and (passes through position-limit mechanism).So,, owing to not needing again needle guard to be put on and can be covered syringe needle, safety promotes greatly.
In addition, fixed handle on needle stand can grasp handle on the one hand in the time of operation, on the other hand, handle, near living saddle, makes only to need a thumb to push down handle and saddle carries out movable operation simultaneously, makes to operate relatively existing intravenous needle also more convenient.
Preferably, described position-limit mechanism includes one first elastic washer and two the second elastic washers;
It is upper near the interior week of one end of described flexible pipe that described the first elastic washer is attached at described saddle, and, the laminating that the edge of described the first elastic washer and the inwall of described saddle are level and smooth;
Two described the second elastic washer cover merging are attached on described needle stand, when described the second elastic washer covers described syringe needle or described syringe needle completely and exposes completely for sliding at described saddle, fasten with described the first elastic washer, to limit the movement of described saddle.
That is to say, slide into when covering syringe needle or described syringe needle and exposing completely toward syringe needle direction at saddle, for saddle and needle stand are fixed, what fasten as the first elastic washer on week in the second elastic washer in the needle stand periphery of position-limit mechanism and saddle is fixing.Because the inwall of the first elastic washer and saddle is level and smooth laminating, extruding that therefore can be comparatively level and smooth is advanced into the position engaging with the second elastic washer.
Preferably, described position-limit mechanism comprises a spring secures rail to sleeper and two draw-in grooves;
Described two draw-in grooves are arranged on described needle stand, described spring secures rail to sleeper is arranged on described saddle, when described two draw-in grooves and described spring secures rail to sleeper cover described syringe needle or described syringe needle completely and expose completely for sliding at described saddle, be interlocked with described spring secures rail to sleeper, to limit the movement of described saddle.
That is to say, saddle slides axially along needle stand, and need to infuse time, on the spring secures rail to sleeper on saddle and needle stand, the draw-in groove of one end of close needle stand fastens, and syringe needle exposes completely.After having infused, when syringe needle need to be covered, saddle is slid into spring secures rail to sleeper and engage with the draw-in groove of the other end on needle stand, to cover syringe needle.In addition, said spring secures rail to sleeper herein, maintains the fastener of snap-fit relationship with elastic force in the prior art referring to, can engagement release relation as long as apply an external force that is greater than elastic force.
Preferably, described safe vein pin also includes a protective sleeve;
Described needle stand is fixed in the merging of described protective sleeve cover, and described protective sleeve and described needle stand surround and form one for holding the cavity of described saddle;
Described handle is integrated to be arranged on described protective sleeve.
That is to say, a protective sleeve as connector is further set, to protecting needle stand and being communicated with of flexible pipe.Handle, by being arranged at protective sleeve, is indirectly fixed with needle stand.
Preferably, described protective sleeve and described needle stand are fixed near the periphery spiral of one end of described needle stand.Herein, arrange like this and can make fixing more firm between protective sleeve and needle stand.In addition, protective sleeve can also be protected saddle.
Preferably, on described saddle, be provided with at least one skid-proof regions.Herein, the setting of skid-proof regions is in order to allow finger have larger frictional force in the time promoting saddle, for example, can or be that waveform/hole flute profile is to increase the contact area of finger to saddle by a certain region division on saddle at the large elastomeric material of saddle outer wrapping coefficient of friction.
Preferably, described saddle is made up of elastomeric material, and described saddle and described spring secures rail to sleeper are one-body molded, and described needle stand and described draw-in groove are one-body molded, is provided with some vacancy sections on described saddle.
Vacancy section is set is herein on the one hand when making saddle cover syringe needle, still can, by the position of perusal syringe needle, have more safety thereby make to operate; On the other hand, the first elastic card fastener is arranged to when one-body molded with saddle, and vacancy section provides activity space for the action of the first elastic card fastener.
Positive progressive effect of the present utility model is: on needle stand, slide to cover syringe needle by saddle is set, the safety of the processing to syringe needle after infusing is significantly promoted; Because avoided the use of spring syringe needle, reduced patient's misery.
Brief description of the drawings
Fig. 1 is the structural representation of the safe vein pin of this utility model preferred embodiment.
Fig. 2 is the cutaway view of Fig. 1 along A-A.
Detailed description of the invention
Mode below by embodiment further illustrates this utility model, but therefore this utility model is not limited among described scope of embodiments.Fig. 1 is the structural representation of the safe vein pin of the present embodiment; Fig. 2 is the cutaway view of Fig. 1 along A-A; as shown in Fig. 1～2; the safe vein pin that the present embodiment relates to includes: needle stand 1, needle guard 2, flexible pipe 4, joint 12, handle 13, protective sleeve 3, syringe needle 6 and saddle 5; needle guard 2 is sheathed on syringe needle 6; the tubular that needle stand 1 is both ends open, one end of needle stand 1 is communicated with flexible pipe 4 by protective sleeve 3, and the other end is provided with syringe needle 6.The two ends of flexible pipe 4 are communicated with described joint 12 and needle stand 1 respectively.
The tubular that saddle 5 is both ends open and movable being sheathed on needle stand 1, the length of saddle 5 on activity direction is greater than the length of syringe needle 6.
The axial length of needle stand 1 is greater than the length of syringe needle 6.
Needle stand 1 is fixed in protective sleeve 3 cover merging, and protective sleeve 3 surrounds and forms one for holding the cavity of saddle 5 with needle stand 1;
Handle 13 is integrated to be arranged on protective sleeve 3.Handle 13 is near saddle 5.
The safe vein pin of the present embodiment also includes a position-limit mechanism, and position-limit mechanism comprises spring secures rail to sleeper 8 and draw-in groove 81, draw-in groove 82.
Draw-in groove 81, draw-in groove 82 are arranged on needle stand 1, spring secures rail to sleeper 8 is arranged on saddle 5, when draw-in groove 81, draw-in groove 82 and spring secures rail to sleeper 8 cover syringe needle 6 or syringe needle 6 completely and expose completely for sliding at saddle 5, be interlocked with spring secures rail to sleeper 8, to limit the movement of saddle 5.
Needle stand 1 is fixed in protective sleeve 3 cover merging.Protective sleeve 3 is fixed near the periphery spiral of one end of flexible pipe 4 with needle stand 1.
Further, be provided with skid-proof regions 7 on saddle 5, skid-proof regions 7 is the interior trench structure with zigzag decorative pattern, can be in enlarge active surface, be more conducive to finger push saddle 5.
Saddle 5 is made up of elastomeric material, and saddle 5 is one-body molded with spring secures rail to sleeper 8, and protective sleeve 3 is one-body molded with draw-in groove 81 and draw-in groove 82, is provided with some vacancy sections (not shown) on saddle 5.
The safe vein pin that the present embodiment relates to, needle stand 1 will be longer than syringe needle 6, and so, the saddle 5 of above-mentioned tubular just can slidably reciprocate on needle stand 1, makes syringe needle 6 covered and completely expose between two states and switch by saddle 5.
When use, under original state, saddle, by the engaging of draw-in groove 81 and spring secures rail to sleeper 8, is fixed in needle stand 1, and (being the state that syringe needle 6 exposes completely), first takes out needle guard 2, infuses; After having infused, remove the fixing of saddle 5 and needle stand 1, saddle 5 is slided to syringe needle 6 directions to cover syringe needle 6(completely to saddle 5 be the form shown in Fig. 1～2 in the present embodiment accompanying drawing), now saddle 5 is fixed in (by the engaging of spring secures rail to sleeper 8 and draw-in groove 82) on needle stand 1 again.So,, owing to not needing again needle guard 2 to be put on and can be covered syringe needle 6, safety promotes greatly.
Although more than described detailed description of the invention of the present utility model, it will be understood by those of skill in the art that this only illustrates, protection domain of the present utility model is limited by appended claims.Those skilled in the art is not deviating under the prerequisite of principle of the present utility model and essence; can make various changes or modifications to these embodiments; for example; do not use the such buckle structure of spring secures rail to sleeper and draw-in groove; but it is first-class in needle stand to adopt elastic washer the fastening saddle of mode such as mutually to engage, but these changes and amendment all fall into protection domain of the present utility model.
Claims (7)
1. a safe vein pin, it includes a needle stand, a needle guard, a flexible pipe, a joint and a syringe needle, described needle guard is sheathed on described syringe needle, the two ends of described flexible pipe are communicated with described joint and described needle stand respectively, it is characterized in that, described safe vein pin also includes a saddle, leader and a position-limit mechanism, and described needle stand is tubular, one end of described needle stand is fixed and is communicated with described syringe needle, the other end and described hose connection;
Described saddle is the tubular of both ends open and movable being sheathed on described needle stand, and the length of described saddle on activity direction is greater than the length of described syringe needle;
The axial length of described needle stand is greater than the length of described syringe needle;
Described position-limit mechanism is arranged at described saddle and described needle stand, for sliding into and cover completely after described syringe needle at described saddle, described saddle is fixed on described needle stand;
Described handle and described needle stand fix, and described handle is near described saddle.
2. safe vein pin as claimed in claim 1, is characterized in that, described position-limit mechanism includes one first elastic washer and two the second elastic washers;
It is upper near the interior week of one end of described flexible pipe that described the first elastic washer is attached at described saddle, and, the laminating that the edge of described the first elastic washer and the inwall of described saddle are level and smooth;
Two described the second elastic washer cover merging are attached on described needle stand, when described the second elastic washer covers described syringe needle or described syringe needle completely and exposes completely for sliding at described saddle, fasten with described the first elastic washer, to limit the movement of described saddle.
3. safe vein pin as claimed in claim 1, is characterized in that, described position-limit mechanism comprises a spring secures rail to sleeper and two draw-in grooves;
Described two draw-in grooves are arranged on described needle stand, described spring secures rail to sleeper is arranged on described saddle, when described two draw-in grooves and described spring secures rail to sleeper cover described syringe needle or described syringe needle completely and expose completely for sliding at described saddle, be interlocked with described spring secures rail to sleeper, to limit the movement of described saddle.
4. safe vein pin as claimed in claim 1, is characterized in that, described safe vein pin also includes a protective sleeve;
Described needle stand is fixed in the merging of described protective sleeve cover, and described protective sleeve and described needle stand surround and form one for holding the cavity of described saddle;
Described handle is integrated to be arranged on described protective sleeve.
5. safe vein pin as claimed in claim 4, is characterized in that, described protective sleeve is communicated with the periphery spiral of one end of described flexible pipe to be fixed with described needle stand.
6. the safe vein pin as described in any one in claim 1～5, is characterized in that, is provided with at least one skid-proof regions on described saddle.
7. safe vein pin as claimed in claim 3, is characterized in that, described saddle is made up of elastomeric material, and described saddle and described spring secures rail to sleeper are one-body molded, and described needle stand and described draw-in groove are one-body molded, is provided with some vacancy sections on described saddle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420175493.8U CN203829413U (en) | 2014-04-11 | 2014-04-11 | Safe vein needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420175493.8U CN203829413U (en) | 2014-04-11 | 2014-04-11 | Safe vein needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203829413U true CN203829413U (en) | 2014-09-17 |
Family
ID=51507310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420175493.8U Withdrawn - After Issue CN203829413U (en) | 2014-04-11 | 2014-04-11 | Safe vein needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203829413U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103977475A (en) * | 2014-04-11 | 2014-08-13 | 上海金塔医用器材有限公司 | Safety vein needle |
| WO2016107028A1 (en) * | 2015-01-04 | 2016-07-07 | 上海金塔医用器材有限公司 | Anti-needlestick two-wing venipuncture needle |
-
2014
- 2014-04-11 CN CN201420175493.8U patent/CN203829413U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103977475A (en) * | 2014-04-11 | 2014-08-13 | 上海金塔医用器材有限公司 | Safety vein needle |
| CN103977475B (en) * | 2014-04-11 | 2016-08-17 | 上海金塔医用器材有限公司 | Safe vein pin |
| WO2016107028A1 (en) * | 2015-01-04 | 2016-07-07 | 上海金塔医用器材有限公司 | Anti-needlestick two-wing venipuncture needle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140917 Effective date of abandoning: 20160817 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |