CN2902192Y - Disposable injection type blood taking needle - Google Patents
Disposable injection type blood taking needle Download PDFInfo
- Publication number
- CN2902192Y CN2902192Y CN 200620072268 CN200620072268U CN2902192Y CN 2902192 Y CN2902192 Y CN 2902192Y CN 200620072268 CN200620072268 CN 200620072268 CN 200620072268 U CN200620072268 U CN 200620072268U CN 2902192 Y CN2902192 Y CN 2902192Y
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- China
- Prior art keywords
- needle
- needle body
- blood taking
- handle
- locking fixed
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- Expired - Lifetime
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Abstract
A disposable filling blood taking needle comprises a needle body [2] with a needlepoint [3], a needle bat [1] and a needle hat [4]; wherein the needle body [2] is fixed inside the needle bat [1], the needlepoint [3] stretches out from one end of the needle bat [1] and inserts inside the needle hat [4], and the needle bat [1] is connected with the needle hat [4] through a intermediate structure of the envelop needle body [2] as a whole. The utility model is characterized in that the needle body [2] fixed inside the needle bat [1] is provided with a locking fixed structure. The locking fixed structure can be formed of a bending structure [5] arranged on the needle body [2], and also can be formed of a punching protrusion structure [7] or a fixed block [6] structure provided on the needle body [2]. The fixed block [6] can be a viscolloid block, a soldering tin block or a brazing block and so on. The locking fixed structure is characterized in that this structure has a low requirement of the plastic needle bat materials and the injection molding technics, the connection fastness between the needle body and the needle bat is high, and the needle body can not appear loosening and pin phenomenon when screwing and pulling out the needle hat.
Description
Technical field
This utility model relates to a kind of Dispoable medical blood taking needle, is specifically related to a kind of disposable notes formula blood taking needle.This blood taking needle can be used as and the matching used blood taking needle of reusable ejecting type inserting needle device (also claiming " hemostix "), also can be used as the blood sampling parts in " mini " disposable safe automatic blood-taking needle that carries ejection structure, all right conduct is blood taking needle manually.
Background technology
Along with medical level improves, disposable notes formula blood taking needle becomes basically universal in each medical institutions, and annual use amount is considerable, especially can with the supporting blood taking needle of reusable ejecting type inserting needle device, because effective, the low price of blood sampling is welcome by medical personnel very.So-called disposable notes formula blood taking needle is meant and adopts injection moulding process that needle body is fixed on blood taking needle in needle handle and the pin medicated cap.China's patent was announced a name on February 24th, 1999 and was called " disposable use sterile blood sampling pin ", and the patent No. is 97235181.1, and notification number is the utility model patent of CN2308348Y.This patent is the theme with disposable notes formula blood taking needle and discloses a kind of representative technical scheme, its structure mainly is made up of needle body, needle handle and the pin medicated cap of band needle point, needle body is fixed in the needle handle, needle point stretches out and is inserted in the pin medicated cap from an end of needle handle, and the transition structure by the envelope needle body between needle handle and the pin medicated cap fuses.The needle body of this structure blood taking needle adopts stainless steel material, and needle handle and pin medicated cap adopt plastics, during making needle body are put into the die cavity single injection-molded, and needle body is fixed in the needle handle and pin medicated cap that plastic material makes the most at last.Turn the pin medicated cap during use, make the fracture of pin medicated cap and needle handle transition junction, pull up the needle point that the pin medicated cap exposes certain-length then.
Technique scheme is simple in structure, safe and reliable, easy to operate, has technique effect preferably undoubtedly, but in the practice because the restriction of injected plastics material and technological level, often make between needle body and the needle handle to be connected fastness not enough, when using because needle handle covers with pin fuses, need twist into two parts and tide over connection and just can extract pin lid, and in rotation pin lid process, cause needle body loosening easily, even connect the phenomenon that needle body is extracted together.With regard to its reason, the one, there is defective on the structure, specifically be that needle body is a cylinder, needle point then is made up of many corner angle, although the linkage section between pin lid and the needle point is shorter, its frictional force is often greater than the frictional force between needle handle and the needle body; The 2nd, the restriction of injected plastics material and technological level, we know that another key factor of above-mentioned generation band pin phenomenon is the material and the manufacturing process of needle handle and pin lid, if avoid being with the pin phenomenon to occur, then the more requirement of Gao Gengyan has been proposed for material and manufacturing process, correspondingly pay more costs.
Summary of the invention
This utility model purpose provides a kind of disposable notes formula blood taking needle structure that prevents that needle body from becoming flexible in needle handle.
For achieving the above object, the technical solution adopted in the utility model is: a kind of disposable notes formula blood taking needle, comprise needle body, needle handle and the pin medicated cap of being with needle point, needle body is fixed in the needle handle, needle point stretches out and is inserted in the pin medicated cap from an end of needle handle, transition structure by the envelope needle body between needle handle and the pin medicated cap fuses, and the needle body that is fixed in the needle handle is provided with locking fixed structure.
In the technique scheme, described locking fixed structure is the structure of one section abrupt-change cross section on the pointer body, specifically comprises following three kinds of situations:
1, locking fixed structure is made of the bending structure that is located on the needle body.About the position problems of bending structure, can be located at front portion, middle part, rear portion and the tail end of needle body.About the shape problem of bending structure,, comprise U type, V-type, W type, square tooth wave mode, semi-circular or various abnormal shapes or the like as long as needle body vertically produces bending.
2, described locking fixed structure is the punching press raised structures that is located on the needle body, this punching press raised structures is meant the deformation projections structure that punching press forms on local needle body, as a bit locating on columniform needle body along needle body footpath punching press up and down, the part is flattened oblate, the structure of its oblate both sides projection.About the position problems of punching press raised structures, can be located at front portion, middle part, rear portion and the tail end of needle body.
3, described locking fixed structure is the fixed block that is located on the needle body, and fixed block is fixedlyed connected with needle body.About the position problems of fixed block, can be located at front portion, middle part, rear portion and the tail end of needle body.In this programme, a fixed block can be set specially, and then fixed block is fixed on the needle body by fixed form; Also can directly fixed block be fixed on the needle body, when being viscosity glue piece such as fixed block, promptly be directly to drip viscosity glue on the needle body, and this glue promptly solidifies caking under normal temperature air; Perhaps directly drop in and be frozen into soldering tin block or brazing block on the needle body with pricker or stannum dissolving.
Certainly, fixed block can also be made for materials such as plastics with certain intensity and caking ability, rubber, lucites, and its essential requirement is a needle body and the fastness that is connected that fastness is greater than needle body and needle handle that is connected of fixed block, and positive effect is so just arranged.
4, the quantity as for locking fixed structure is: being provided with a locking fixed structure on needle body at least, specifically can be 1～3, in general establishes one and can reach locking fixedly requirement.
This utility model operation principle is: by at least one locking fixed structure is set on needle body, and locking fixed structure is injection molded into needle handle with needle body.Because needle body is provided with one section abrupt-change cross section structure, makes needle body be connected fastness and be multiplied, and be far longer than the fastness that is connected of needle point and pin medicated cap, so needle body can not take place when turning and pulling out the pin medicated cap become flexible and be with the pin phenomenon with needle handle.
Because the technique scheme utilization, this utility model compared with prior art has following advantage:
1, because this utility model needle body is provided with the technical measures of locking fixed structure, increased the resistance and the frictional force of needle body and needle handle greatly, made needle body become multiplication, thereby obtained good anti-loosening and anti-band pin effect with the fastness that is connected of needle handle.
2, because this utility model needle body is provided with the technical measures of locking fixed structure, can reduce material and Shooting Technique requirement to the plastics needle handle, it is easy and economical the manufacturing of blood taking needle to be become just add.
When 3, the locking fixed structure of this utility model adopts the bending structure, can make full use of the concordance that bending technique guarantees whole needle body length, thereby guarantee the concordance of needle point exposed length.Specifically can before bending technique, needle body be located in mould, needle point contact plastics locating piece, needle body carries out bending to the needle body afterbody under clamp position, so just the error of needle body length can be stayed the backshank after the bending.
4, because this utility model needle body is provided with the technical measures of locking fixed structure, the phenomenon that needle body pushes up the handle of threading a needle can not take place in blood taking needle yet when using back needle handle, needle point and pin lid by accompanying drawing 4 mode plug-in mountings.
Description of drawings
Accompanying drawing 1 is this utility model embodiment one structural representation;
Accompanying drawing 2 is the schematic top plan view of accompanying drawing 1;
Accompanying drawing 3 is extracted state diagram behind the pin medicated cap for this utility model embodiment one;
Accompanying drawing 4 is that this utility model embodiment one use back pin medicated cap is inserted in the state diagram on the needle point;
Accompanying drawing 5 is the sketch map of first kind of bending structure of this utility model embodiment two;
Accompanying drawing 6 is the sketch map of second kind of bending structure of this utility model embodiment two;
Accompanying drawing 7 is the sketch map of the third bending structure of this utility model embodiment two;
Accompanying drawing 8 is the sketch map of the 4th kind of bending structure of this utility model embodiment two;
Accompanying drawing 9 is the sketch map of first kind of bending structure of this utility model embodiment three;
Accompanying drawing 10 is the sketch map of second kind of bending structure of this utility model embodiment three;
Accompanying drawing 11 is the sketch map of the third bending structure of this utility model embodiment three;
Accompanying drawing 12 is this utility model embodiment four structural representations;
Accompanying drawing 13 is the schematic top plan view of accompanying drawing 11;
Accompanying drawing 14 is provided with the sketch map of position for a kind of fixed block of this utility model embodiment five;
Accompanying drawing 15 is provided with the sketch map of position for the another kind of fixed block of this utility model embodiment five.
In the above accompanying drawing: 1, needle handle; 2, needle body; 3, needle point; 4, pin medicated cap; 5, bending structure; 6, fixed block; 7, punching press raised structures.
The specific embodiment
Below in conjunction with drawings and Examples this utility model is further described:
Embodiment one: shown in accompanying drawing 1～4, a kind of disposable notes formula blood taking needle is made up of needle body 2, needle handle 1 and the pin medicated cap 4 of band needle point 3; Needle body 2 is provided with a locking fixed structure, and described locking fixed structure is the L type bending structure 5 that is located at needle body 2 tail ends.Needle body 2 is fixed in the needle handle 1, and needle point 3 stretches out and is inserted in the pin medicated cap 4 from an end of needle handle 1, and the transition structure by envelope needle body 2 between needle handle 1 and the pin medicated cap 4 fuses.
Embodiment two: shown in accompanying drawing 5～8, a kind of disposable notes formula blood taking needle is made up of needle body 2, needle handle 1 and the pin medicated cap 4 of band needle point 3; Needle body 2 is provided with a locking fixed structure, and described locking fixed structure is the bending structure 5 that is located at needle body 2 rear portions, and these bending structure 5 concrete shapes can also can be the V-types as accompanying drawing 8 as the U type of accompanying drawing 5, accompanying drawing 6, accompanying drawing 7.Needle body 2 is fixed in the needle handle 1, and needle point 3 stretches out and is inserted in the pin medicated cap 4 from an end of needle handle 1, and the transition structure by envelope needle body 2 between needle handle 1 and the pin medicated cap 4 fuses.
Embodiment three: shown in accompanying drawing 9, accompanying drawing 10, accompanying drawing 11, a kind of disposable notes formula blood taking needle is made up of needle body 2, needle handle 1 and the pin medicated cap 4 of band needle point 3; Needle body 2 is provided with a locking fixed structure, and described locking fixed structure is the bending structure 5 that is located at needle body 2 middle parts, and these bending structure 5 concrete shapes are the special-shaped corrugated as accompanying drawing 9, as the square tooth ripples shape of accompanying drawing 10, or as the S type corrugated of accompanying drawing 11.Needle body 2 is fixed in the needle handle 1, and needle point 3 stretches out and is inserted in the pin medicated cap 4 from an end of needle handle 1, and the transition structure by envelope needle body 2 between needle handle 1 and the pin medicated cap 4 fuses.
Embodiment four: shown in accompanying drawing 12, accompanying drawing 13, a kind of disposable notes formula blood taking needle is made up of needle body 2, needle handle 1 and the pin medicated cap 4 of band needle point 3; Needle body 2 is provided with two locking fixed structures, and these two locking fixed structures are two punching press raised structures 7 that are located at needle body 2 middle parts and rear portion, and this two punching presses raised structures 7 is specifically shown in accompanying drawing 11,12.Needle body 2 is fixed in the needle handle 1, and needle point 3 stretches out and is inserted in the pin medicated cap 4 from an end of needle handle 1, and the transition structure by envelope needle body 2 between needle handle 1 and the pin medicated cap 4 fuses.
Embodiment five: shown in accompanying drawing 14, accompanying drawing 15, a kind of disposable notes formula blood taking needle is made up of needle body 2, needle handle 1 and the pin medicated cap 4 of band needle point 3; Needle body 2 is provided with a locking fixed structure, and this locking fixed structure is the fixed block 6 that is located at needle body 2 middle parts or tail end, is located at needle body 2 middle parts as shown in Figure 13, is located at needle body 2 tail ends as shown in Figure 14; Described fixed block 6 is for dropping in the viscosity glue piece on the needle body 2.Needle body 2 is fixed in the needle handle 1, and needle point 3 stretches out and is inserted in the pin medicated cap 4 from an end of needle handle 1, and the transition structure by envelope needle body 2 between needle handle 1 and the pin medicated cap 4 fuses.
The foregoing description only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this, can not limit protection domain of the present utility model with this.All equivalences of being done according to this utility model spirit change or modify, and all should be encompassed within the protection domain of the present utility model.
Claims (10)
1, a kind of disposable notes formula blood taking needle, the needle body [2], needle handle [1] and the pin medicated cap [4] that comprise band needle point [3], needle body [2] is fixed in the needle handle [1], needle point [3] stretches out and is inserted in the pin medicated cap [4] from an end of needle handle [1], transition structure by envelope needle body [2] between needle handle [1] and the pin medicated cap [4] fuses, and it is characterized in that: the needle body [2] that is fixed in the needle handle [1] is provided with locking fixed structure.
2, blood taking needle according to claim 1 is characterized in that: described locking fixed structure is for being located at the bending structure [5] on the needle body [2].
3, blood taking needle according to claim 2 is characterized in that: described bending structure [5] is shaped as U type, V-type, W type, square tooth wave mode, semi-circular or special-shaped.
4, blood taking needle according to claim 1 is characterized in that: described locking fixed structure is for being located at the punching press raised structures [7] on the needle body [2].
5, blood taking needle according to claim 1 is characterized in that: described locking fixed structure is for being located at the fixed block [6] on the needle body [2], and fixed block [6] is fixedlyed connected with needle body [2].
6, blood taking needle according to claim 5 is characterized in that: described fixed block [6] is viscosity glue piece, soldering tin block or brazing block.
7, blood taking needle according to claim 1 is characterized in that: described locking fixed structure is located at the tail end of needle body [2].
8, blood taking needle according to claim 1 is characterized in that: described locking fixed structure is located at the middle part of needle body [2].
9, blood taking needle according to claim 1 is characterized in that: described locking fixed structure is located at the rear portion of needle body [2].
10, blood taking needle according to claim 1 is characterized in that: the quantity of described locking fixed structure is 1～3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620072268 CN2902192Y (en) | 2006-04-03 | 2006-04-03 | Disposable injection type blood taking needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620072268 CN2902192Y (en) | 2006-04-03 | 2006-04-03 | Disposable injection type blood taking needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2902192Y true CN2902192Y (en) | 2007-05-23 |
Family
ID=38077592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620072268 Expired - Lifetime CN2902192Y (en) | 2006-04-03 | 2006-04-03 | Disposable injection type blood taking needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2902192Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014101569A1 (en) * | 2012-12-28 | 2014-07-03 | 苏州施莱医疗器械有限公司 | Safe and convenient disposable blood-taking needle with double-surface cap |
-
2006
- 2006-04-03 CN CN 200620072268 patent/CN2902192Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014101569A1 (en) * | 2012-12-28 | 2014-07-03 | 苏州施莱医疗器械有限公司 | Safe and convenient disposable blood-taking needle with double-surface cap |
| US10524708B2 (en) | 2012-12-28 | 2020-01-07 | Sterilance Medical (Suzhou) Inc. | Safe and convenient disposable blood-taking needle with double-surface cap |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070523 |
|
| EXPY | Termination of patent right or utility model |