CN202036224U - Blood taking needle in secure connection - Google Patents
Blood taking needle in secure connection Download PDFInfo
- Publication number
- CN202036224U CN202036224U CN2011200907627U CN201120090762U CN202036224U CN 202036224 U CN202036224 U CN 202036224U CN 2011200907627 U CN2011200907627 U CN 2011200907627U CN 201120090762 U CN201120090762 U CN 201120090762U CN 202036224 U CN202036224 U CN 202036224U
- Authority
- CN
- China
- Prior art keywords
- needle
- needle body
- blood taking
- groove
- taking needle
- 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
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a blood taking needle in secure connection, which structurally comprises a needle and a sleeve matched with the outside of the needle, wherein the needle mainly comprises a needle body. A needle tip is arranged at the front end of the needle body, the needle body is provided with at least one groove contacting with the inner surface of the sleeve, and grooves are arranged at the positions close to the needle tip and oppositely distributed on two sides of the needle body. Since the needle body is in a groove structure extending along the direction perpendicular to the axial direction of the needle and frictional force of the needle body and the sleeve are increased by the aid of edges of the grooves, the blood taking needle with the structure has the advantages that isolation of the needle body from the sleeve can be effectively prevented, and the blood taking needle with the structure is simple in structure and low in production cost.
Description
Technical field
This utility model relates to blood taking needle, specifically a kind of blood taking needle that is connected firmly.
Background technology
At present, the needle body that the blood taking needle on the market mainly is made of cylindrical needle body portion and needle tip, and the external member that is used to be socketed in the needle body outside.The blood taking needle of this structure uses on market extensively, but the blood taking needle that adopts this structure in use, and promptly when drawing back the needle point external member, needle body and its external member break away from easily.
The utility model content
The purpose of this utility model is the defective that exists at prior art, and a kind of blood taking needle that is connected firmly is provided, and has solved blood taking needle that prior art exists needle body and its external member technical problem of disengaging easily in use.
The technical scheme that its technical problem that solves this utility model adopts is: a kind of blood taking needle that is connected firmly, its structure comprise the external member that needle body and needle body outside are complementary, and wherein needle body mainly comprises the needle body, are needle point at needle body front end; The described needle body is provided with at least one and the contacted groove of external member inner surface.
On the technique scheme basis and as a kind of preferred version of above-mentioned technology: described groove is arranged on the position near described needle point.
On the technique scheme basis and as a kind of preferred version of above-mentioned technology: described groove is offside and distributes on the described needle body, on one side together.
A kind of blood taking needle that is connected firmly of the present utility model is compared with prior art, has following beneficial effect:
This utility model adopts along the structure of the groove that stretches perpendicular to the needle body axial direction in needle body portion, utilizes the corner angle increase needle body portion of groove and the frictional force of external member, adopts this structure can effectively prevent needle body and external member generation break-off; Adopt the employing needle construction of this structure simple, production cost is low.
Description of drawings
Fig. 1 is the structural representation of a kind of blood taking needle that is connected firmly of the present utility model.
Fig. 2 is the A-A structure cutaway view of Fig. 1.
Among the figure: 10, needle body; 20, external member; 11, the needle body; 12, needle point; 13, groove.
The specific embodiment
Next explain below with reference to Figure of description a kind of blood taking needle that is connected firmly of the present utility model being done.
As shown in Figure 1, a kind of blood taking needle that is connected firmly, its structure comprises the external member 20 that needle body 10 and needle body outside are complementary, wherein needle body mainly comprises the needle body 11, is needle point 12 at needle body front end; The described needle body is provided with 2 and the contacted groove 13 of external member inner surface, and described groove is arranged near on the needle body of needle point.As shown in Figure 2, groove is offside and distributes on the needle body, on one side together.Fig. 1 has only provided the embodiment at a place, and is same, and groove can be provided with the frictional force that 1 or 3 even a plurality of groove 13 increase by 20 of needle body 10 and external members.
The above embodiment is a kind of of the more preferably concrete embodiment of this utility model, and common variation that those skilled in the art carries out in the technical solutions of the utility model scope and replacement all should be included in the protection domain of the present utility model.
Claims (3)
1. blood taking needle that is connected firmly, its structure comprises the external member that needle body and needle body outside are complementary, wherein needle body mainly comprises the needle body, is needle point at needle body front end; It is characterized in that: the described needle body is provided with at least one and the contacted groove of external member inner surface.
2. a kind of blood taking needle that is connected firmly according to claim 1 is characterized in that: described groove is arranged on the position near described needle point.
3. a kind of blood taking needle that is connected firmly according to claim 1 and 2 is characterized in that: described groove is offside and distributes on the described needle body, on one side together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200907627U CN202036224U (en) | 2011-03-31 | 2011-03-31 | Blood taking needle in secure connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200907627U CN202036224U (en) | 2011-03-31 | 2011-03-31 | Blood taking needle in secure connection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202036224U true CN202036224U (en) | 2011-11-16 |
Family
ID=44963699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200907627U Expired - Fee Related CN202036224U (en) | 2011-03-31 | 2011-03-31 | Blood taking needle in secure connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202036224U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103190920A (en) * | 2012-01-10 | 2013-07-10 | 杨莲英 | Disposable double-insurance blood taking needle |
-
2011
- 2011-03-31 CN CN2011200907627U patent/CN202036224U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103190920A (en) * | 2012-01-10 | 2013-07-10 | 杨莲英 | Disposable double-insurance blood taking needle |
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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: 20111116 Termination date: 20180331 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |