CN204699173U - The locking mechanism of entry needle safety guard - Google Patents
The locking mechanism of entry needle safety guard Download PDFInfo
- Publication number
- CN204699173U CN204699173U CN201520429848.6U CN201520429848U CN204699173U CN 204699173 U CN204699173 U CN 204699173U CN 201520429848 U CN201520429848 U CN 201520429848U CN 204699173 U CN204699173 U CN 204699173U
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- China
- Prior art keywords
- snap fit
- locking mechanism
- fin
- entry needle
- safety guard
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- Expired - Fee Related
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a kind of locking mechanism of entry needle safety guard, comprise the snap fit be arranged on for a pair on guard trailing end wall, snap fit is oppositely arranged, and the gap between snap fit is for holding the fin press-in snap fit bottom of base of syringe needle, described each snap fit cross section is triangle, the vertical of snap fit and guard trailing end wall one, the inclined-plane of snap fit is oppositely arranged and coordinates base flap to be pressed into, the bottom surface of snap fit is inclined relative to horizontal setting, the gradient of snap fit bottom surface and identical with the gradient of the fin upper surface that snap fit coordinates, the surface of the bottom surface of snap fit is provided with lobe, described fin is provided with the inner fovea part locked with the raised portion fits of snap fit bottom surface.Snap fit locking mechanism of the present utility model is locked effective, and be easy to produce, processing, can be actual carry out volume production, the product cost of reduction, there is good market value and promotional value.
Description
Technical field
This utility model belongs to technical field of medical instruments, is specifically related to a kind of improvement locking mechanism of protector of single use safety needle.
Background technology
Data according to the relevent statistics, China is injection, transfusion, the most general country of blood sampling.Hospital and each medical institutions have a large amount of used entry needle to go out of use every year.In order to avoid environmental pollution and refuse secondary utilize, need by professional institution, used entry needle to be recycled.In order to prevent in removal process, unexpected injury or superinfection are to related personnel, and it is simple that hygiene department needs a kind of structure badly, safe and reliable needle protecting arrangement.At present, people advise using a kind of syringe using rear syringe needle can retract in medicinal liquid cavity, but this type of syringe construction is complicated, and cost is higher, is difficult to large scale application.
Patent 201310213076.8 discloses a kind of safety protective cover; this protective sleeve is for receiving syringe needle; open protective sleeve by Connection Block and side to form; side is opened protective sleeve and is connected by hinged mode with Connection Block; upright inverse tying plate is set up, Connection Block and be provided with snap device between the relative sidewall of needle tubing containing cavity and Connection Block in Connection Block and containing cavity.This safety protective cover serves certain safeguard protection effect; its shortcoming is, hinged mode is not easy location, and medical worker is when carrying out trocar operation; usually produce secondary operation owing to locating inaccurate; and easily prick the hand, built on the sand, syringe needle is easily from the sidepiece slippage of inverse tying plate for the structure of inverse tying plate fixed needle; the draw-in groove of this patent is arranged on Connection Block; grab is arranged on side and opens on the inwall of protective sleeve, the easy slippage of such vibrational power flow, built on the sand.
Patent 201110270127.1 discloses a kind of needle guard mechanisms and safety needle assembly; structure is very complicated; be not easy preparation; also be by hinged mode between its sheath and Connection Block; arrange the location of carrying out syringe needle in two holding sections to fix; this structure, when operator operate, is also not easy location, causes the problem that operating efficiency is low.
Go out as shown in Figure 1, Figure 2, Figure 3 shows, applicant is called " safety guard of entry needle " in the name of application on 08 06th, 2014, application number is the utility model patent of 201420438073.4, discloses the protector of safety needle.The one end open of this device sheath, on described guard trailing end wall or arrange a pair snap fit at the bottom of wall, needle stand and sheath are oppositely arranged the buckle of a pair engaging, described needle stand and sheath junction arrange the elastic positioning device of a band limit function.Wherein, coupler construction bottom is provided with parts latch hook, and fin is provided with corresponding lockhole, once needle stand flaps down enters in protective sleeve after snap fit bottom, latch hook and lockhole coordinate, and prevent from further loosening because of external force.
In the process that actual production uses, applicant's discovery, fin is processed lockhole and at snap fit bottom setting parts latch hook, not only processing difficulties, yield rate is low, causes processing cost to improve.
Summary of the invention
For above-mentioned technical problem, this utility model makes improvements existing snap fit, provides a kind of improvement locking mechanism of entry needle safety guard being easy to process, use.
For reaching above-mentioned technique effect, the technical solution of the utility model is: a kind of improvement locking mechanism of entry needle safety guard, comprise the snap fit be arranged on for a pair on guard trailing end wall, snap fit is oppositely arranged, and the gap between snap fit is for holding the fin press-in snap fit bottom of base of syringe needle, described each snap fit cross section is triangle, the vertical of snap fit and guard trailing end wall one, the inclined-plane of snap fit is oppositely arranged and coordinates base flap to be pressed into, the bottom surface of snap fit is inclined relative to horizontal setting, the gradient of snap fit bottom surface and identical with the gradient of the fin upper surface that snap fit coordinates.
Further optimal technical scheme is: described base flap is four, and every two panels is oppositely arranged.
Further optimal technical scheme is in addition: the surface of the bottom surface of described snap fit is provided with lobe, and described fin is provided with the inner fovea part locked with the raised portion fits of snap fit bottom surface.
Further optimal technical scheme is: it is 5-50 ° that the bottom surface of described snap fit is inclined relative to horizontal angle, preferably 15 °.
Snap fit locking mechanism of the present utility model is locked effective, and be easy to produce, processing, can be actual carry out volume production, the product cost of reduction, there is good market value and promotional value.
Accompanying drawing explanation
Fig. 1 is the structural representation of the entry needle safety guard of applicant's earlier application;
Fig. 2 is the structural representation that the fin of the entry needle safety guard of applicant's earlier application arranges lockhole;
Fig. 3 is the structural representation that the snap fit of the entry needle safety guard of applicant's earlier application arranges latch hook;
Fig. 4 is the structural representation of this utility model embodiment 1;
Fig. 5 is the structural representation of this utility model embodiment 2;
Fig. 6 is the structural representation of another distortion of this utility model embodiment 2.
Detailed description of the invention
Embodiment 1
As shown in Figure 4; the improvement locking mechanism of a kind of entry needle safety guard of the present utility model; comprise the snap fit 100 be arranged on for a pair on guard trailing end wall 200; snap fit 100 is oppositely arranged; and the gap between snap fit 100 is pressed into the bottom of snap fit 100 for the fin 110 holding base of syringe needle; each snap fit 100 cross section is triangle; the vertical of snap fit 100 and guard trailing end wall 200 one; the inclined-plane of snap fit 100 is oppositely arranged and coordinates base flap 110 to be pressed into, and the bottom surface of snap fit 100 is inclined relative to horizontal setting.It is 5-50 ° that the bottom surface of snap fit 100 is inclined relative to horizontal angle, this enforcement employing 15 °, the gradient of snap fit 100 bottom surface and identical with the gradient of fin 110 upper surface that snap fit 100 coordinates.
The base flap 110 of the present embodiment is four, every two panels is oppositely arranged, the upper surface of base flap 110 and the bottom surface of snap fit 100 be arranged in parallel, when making fin 110 adopt the mode of finger pressure to be pressed into the bottom of snap fit 100, because snap fit 100 exists the inclined-plane be oppositely arranged, make the fin 110 easier press-in of the inclined plane along snap fit 100 snap fit 100 bottom, the extended length of relative two panels fin 110 is greater than the outward flange boundary of snap fit 100, blocked, prevent it from moving upward.
During use, original for syringe needle sheath is pulled out and completes injection task; After using, push in sheath by needle stand by syringe needle, it is locked that needle stand and sheath pass through common buckle, and needle tubing is positioned sheath intracavity, then sends into and reclaim link, can avoid like this being stabbed, avoid infection in removal process.Because the bottom surface of snap fit 100 is obliquely installed, and fin 110 and the bottom surface of snap fit 100 be arranged in parallel, and so when fin 110 is positioned at the bottom of snap fit 100, then more difficult distortion rebounds out the bottom of snap fit 100, locked better effects if.
Embodiment 2:
Go out as shown in Figure 5, on the basis of embodiment 1, all the other structures are identical with embodiment 1, the present embodiment further improves and is, the surface of the bottom surface of snap fit 100 is provided with lobe 120, fin 110 is provided with and coordinates locked inner fovea part 130 with the lobe 120 of snap fit bottom surface, and such structural design makes locked effect more obvious relative to embodiment 1.
Go out as shown in Figure 6, as a distortion, the surface of the bottom surface of snap fit 100 can be provided with inner fovea part, fin 110 is provided with and coordinates locked lobe with the inner fovea part of snap fit bottom surface, and this is all within protection domain of the present utility model.
The explanation of above example just understands core concept of the present utility model for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (6)
1. the locking mechanism of an entry needle safety guard; comprise the snap fit be relatively arranged on guard trailing end wall for a pair; gap between a pair snap fit is for holding the fin press-in snap fit bottom of base of syringe needle; it is characterized in that, the gradient of snap fit bottom surface and identical with the gradient of the fin upper surface that snap fit coordinates.
2. the locking mechanism of a kind of entry needle safety guard according to claim 1, is characterized in that, the vertical of snap fit and guard trailing end wall one, a pair described snap fit cross section is all triangle.
3. the locking mechanism of a kind of entry needle safety guard according to claim 1 and 2, is characterized in that, described fin is four, and every two panels is oppositely arranged.
4. the locking mechanism of a kind of entry needle safety guard according to claim 1 and 2, it is characterized in that, the surface of the bottom surface of described snap fit is provided with lobe, and described fin is provided with the inner fovea part locked with the raised portion fits of snap fit bottom surface.
5. the locking mechanism of a kind of entry needle safety guard according to claim 1 and 2, is characterized in that, it is 5-50 ° that the bottom surface of described snap fit is inclined relative to horizontal angle.
6. the locking mechanism of a kind of entry needle safety guard according to claim 5, is characterized in that, it is 15 ° that the bottom surface of described snap fit is inclined relative to horizontal angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520429848.6U CN204699173U (en) | 2015-06-19 | 2015-06-19 | The locking mechanism of entry needle safety guard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520429848.6U CN204699173U (en) | 2015-06-19 | 2015-06-19 | The locking mechanism of entry needle safety guard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204699173U true CN204699173U (en) | 2015-10-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520429848.6U Expired - Fee Related CN204699173U (en) | 2015-06-19 | 2015-06-19 | The locking mechanism of entry needle safety guard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204699173U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108992742A (en) * | 2018-08-29 | 2018-12-14 | 江苏康宝医疗器械有限公司 | A kind of multifunctional safe injection needle |
-
2015
- 2015-06-19 CN CN201520429848.6U patent/CN204699173U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108992742A (en) * | 2018-08-29 | 2018-12-14 | 江苏康宝医疗器械有限公司 | A kind of multifunctional safe injection 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: 20151014 Termination date: 20200619 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |