CN210844699U - Prevent that acupuncture hinders injection device - Google Patents
Prevent that acupuncture hinders injection device Download PDFInfo
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- CN210844699U CN210844699U CN201921152475.7U CN201921152475U CN210844699U CN 210844699 U CN210844699 U CN 210844699U CN 201921152475 U CN201921152475 U CN 201921152475U CN 210844699 U CN210844699 U CN 210844699U
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- pipette
- needle
- injection device
- sleeve
- nipple
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Abstract
The utility model relates to the technical field of machinery, in particular to a needle-prick-prevention injection device, which comprises an injector, wherein a sleeve is arranged outside the injector, and the injector comprises a pipette and an auxiliary tube; this prevent that acupuncture hinders injection device is through the sleeve pipe that is equipped with, ejector pad and connecting block, make this syringe when using, user of service can carry out the imbibition through promoting the ejector pad on the one hand, on the other hand can be through the ejector pad syringe needle retraction after will injecting to the intraductal, a great convenience for use, medical personnel have been prevented from being stabbed by the syringe needle, the easy problem of stabbing medical personnel of syringe needle has been solved, this prevent that acupuncture from hindering injection device passes through syringe needle and nipple adoption threaded connection's mode, traditional grafting complex mode has been changed, make the connection between nipple and the syringe needle more inseparable, avoided medical personnel to take off the syringe needle in the lump when going the needle cap and cause the situation of syringe needle pollution, the easy contaminated problem of syringe needle has been solved.
Description
Technical Field
The utility model relates to the technical field of machinery, specifically be an injection device is hindered to needle-prick prevention.
Background
When the existing syringe takes out a needle cap, a needle head and the needle cap are very easy to take down together, and then the needle head is polluted.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an injection device is hindered to needle-prick prevention to the syringe needle that provides is easily contaminated and the syringe needle easily stabs medical personnel's problem among the solution above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
an injection device for preventing needle stick injury comprises an injector, wherein a sleeve is arranged outside the injector.
The injector comprises a pipette and an auxiliary pipe, a piston shaft is arranged inside the pipette, a pressing sheet is arranged on the position, close to the top end, of the circumferential outer wall of the auxiliary pipe, the pressing sheet and the auxiliary pipe are of an integrally formed structure, the piston shaft penetrates through the pipette and the auxiliary pipe respectively, a piston handle is tightly bonded to the top end of the piston shaft, a piston is arranged at the bottom end of the piston shaft, and the piston is in sliding connection with the pipette.
The bottom surface of the pipette is provided with a nipple, the nipple is provided with a needle head, and the nipple is in threaded connection with the needle head.
The improved pipette is characterized in that a cavity is formed in the sleeve, the top end of the sleeve is tightly bonded with the pressing sheet, a sliding groove is formed in the circumferential outer wall of the sleeve, a pushing block is arranged on the sliding groove, a connecting block is tightly bonded on the rear side face of the pushing block, the connecting block is tightly bonded with the circumferential outer wall of the pipette close to the bottom end, and the pushing block is slidably connected with the sliding groove through the connecting block.
The lower cover is arranged below the sleeve, a through hole is formed in the bottom surface of the lower cover, and the lower cover is in threaded connection with the bottom end of the sleeve.
Preferably, the auxiliary tube, the pipette, the nipple and the needle head are sequentially communicated end to end.
Preferably, the inner diameter of the sub pipe is larger than that of the pipette, and the pipette is slidably connected to the sub pipe.
Preferably, the nipple and the needle pass through the through hole.
Preferably, the push block is symmetrically provided with two inclined planes.
Preferably, the inclined planes are all provided with anti-skid grains.
Compared with the prior art, the beneficial effects of the utility model are that:
1. according to the injection device for preventing the needle stick injury, when the injector is used, a user can suck liquid by pushing the push block on one hand and can retract the needle after injection into the sleeve through the push block on the other hand through the sleeve, so that the injection device is convenient to use, prevents medical personnel from being stabbed by the needle, and solves the problem that the needle is easy to stab the medical personnel;
2. this prevent that needle prick hinders injection device passes through syringe needle and nipple adoption threaded connection's mode, has changed traditional grafting complex mode for being connected between nipple and the syringe needle is more inseparable, has avoided medical personnel to take off the syringe needle in the lump when going the needle cap and has caused the situation of syringe needle pollution, has solved the easy contaminated problem of syringe needle.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an exploded view of the overall structure of the present invention;
FIG. 3 is a schematic structural view of the injector of the present invention;
fig. 4 is a schematic structural view of the middle push block of the present invention.
In the figure: 1. an injector; 11. a pipette; 12. a secondary pipe; 121. tabletting; 13. a piston shaft; 14. a piston handle; 15. a piston; 16. a nipple; 17. a needle head; 2. a sleeve; 21. a cavity; 22. a chute; 23. a push block; 231. a bevel; 232. anti-skid lines; 24. connecting blocks; 3. a lower cover; 31. and a through hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Example 1
An injection device for preventing needle stick injuries, as shown in fig. 1 to 4, comprises an injector 1, a sleeve 2 is arranged outside the injector 1, the injector 1 comprises a pipette 11 and an auxiliary tube 12, a piston shaft 13 is arranged inside the pipette 11, a pressing sheet 121 is arranged on the circumferential outer wall of the auxiliary tube 12 near the top end, the pressing sheet 121 and the auxiliary tube 12 are of an integrated structure, the piston shaft 13 respectively penetrates through the pipette 11 and the auxiliary tube 12, a piston handle 14 is tightly adhered to the top end of the piston shaft 13, a piston 15 is arranged at the bottom end of the piston shaft 13, the piston 15 is in sliding connection with the pipette 11, a nipple 16 is arranged on the bottom surface of the pipette 11, a needle head 17 is arranged on the nipple 16, the nipple 16 is in threaded connection with the needle head 17, a cavity 21 is arranged inside the sleeve 2, the top end of the sleeve 2 is tightly adhered to the pressing sheet 121, a chute 22 is arranged on the circumferential outer wall of the sleeve 2, a pushing block 23, the connecting block 24 is closely adhered to the circumferential outer wall of the pipette 11 near the bottom, the push block 23 is slidably connected with the sliding groove 22 through the connecting block 24, the lower cover 3 is arranged below the sleeve 2, the bottom surface of the lower cover 3 is provided with a through hole 31, and the lower cover 3 is in threaded connection with the bottom end of the sleeve 2.
Specifically, the secondary tube 12, the pipette 11, the nipple 16 and the needle 17 are sequentially communicated end to end, which facilitates the aspiration of the liquid medicine through the nipple 16 and the needle 17 for injection.
Specifically, the inner diameter of the secondary pipe 12 is larger than that of the pipette 11, and the pipette 11 is slidably connected with the secondary pipe 12, so that the pipette 11 is matched with the push block 23 to suck the liquid medicine.
Specifically, the nipple 16 and the needle 17 pass through the through hole 31, and the nipple 16 and the needle 17 preferably pass through the through hole 31 when the pipette 11 moves in the cannula 2.
Specifically, two inclined planes 231 are symmetrically formed in the push block 23, and the inclined planes 231 facilitate a user to push the push block 23 along the sliding groove 22.
Further, all seted up anti-skidding line 232 on the inclined plane 231, anti-skidding line 232 makes more laborsaving and convenient when user of service pushes away ejector pad 23.
In addition, the pipette 11, the auxiliary tube 12 and the sleeve 2 are made of transparent PP materials, which are light, have good toughness and chemical resistance and no toxicity, are suitable for production of medical instruments, and are transparent to facilitate observation of the amount of liquid to be sucked by medical staff.
It should be added that the sliding connection between the pipette 11 and the auxiliary tube 12 in this embodiment is a relatively tight connection, that is, the pipette 11 needs to be able to slide along the auxiliary tube 12 under the action of human force, when the user pushes the pushing block 23, the pipette 11 slides along the auxiliary tube 12, and meanwhile, the pipette 11 will not slide in the auxiliary tube 12 under the action of gravity, thereby preventing the needle 17 from being exposed again to stab medical staff.
When the injection device for preventing needle stick injuries in the embodiment is used, when a user needs to use the injector 1 to draw liquid medicine, the user firstly pushes the push block 23 forwards along the chute 22, at the moment, the push block 23 drives the pipette 11 to slide along the auxiliary tube 12, when the needle 17 passes through the through hole 31, the user stops pushing the push block 23, meanwhile, the user pierces the needle 17 into a medicine bottle, then one hand of the user continuously pushes the push block 23, the other hand holds the piston handle 14, the push block 23 drives the pipette 11 to move forwards, meanwhile, the piston 15 slides along the inner wall of the pipette 11, negative pressure is generated inside the pipette 11, and the liquid medicine enters the pipette 11;
when a user needs to retract the needle 17, the user pushes the push block 23 backwards along the chute 22, and simultaneously the push block 23 drives the pipette 11 to move backwards along the auxiliary tube 12, at this time, the needle 17 enters the sleeve 2, and then the user pushes the piston handle 14 and pushes the piston shaft 13 and the piston 15 back into the pipette 11.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. An injection device for preventing needle stick injuries, comprising a syringe (1), characterized in that: a sleeve (2) is arranged outside the injector (1);
the injector (1) comprises a pipette (11) and an auxiliary pipe (12), a piston shaft (13) is arranged inside the pipette (11), a pressing sheet (121) is arranged on the circumferential outer wall of the auxiliary pipe (12) close to the top end of the auxiliary pipe (12), the pressing sheet (121) and the auxiliary pipe (12) are of an integrally formed structure, the piston shaft (13) penetrates through the pipette (11) and the auxiliary pipe (12) respectively, a piston handle (14) is tightly bonded to the top end of the piston shaft (13), a piston (15) is arranged at the bottom end of the piston shaft (13), and the piston (15) is in sliding connection with the pipette (11);
a nipple (16) is arranged on the bottom surface of the pipette (11), a needle head (17) is arranged on the nipple (16), and the nipple (16) is in threaded connection with the needle head (17);
a cavity (21) is formed in the sleeve (2), the top end of the sleeve (2) is tightly bonded with the pressing sheet (121), a sliding groove (22) is formed in the circumferential outer wall of the sleeve (2), a pushing block (23) is arranged on the sliding groove (22), a connecting block (24) is tightly bonded on the rear side face of the pushing block (23), the connecting block (24) is tightly bonded with the circumferential outer wall of the pipette (11) close to the bottom end, and the pushing block (23) is in sliding connection with the sliding groove (22) through the connecting block (24);
the lower cover (3) is arranged below the sleeve (2), a through hole (31) is formed in the bottom surface of the lower cover (3), and the lower cover (3) is in threaded connection with the bottom end of the sleeve (2).
2. The needle stick wound prevention injection device of claim 1, wherein: the auxiliary pipe (12), the pipette (11), the nipple (16) and the needle head (17) are sequentially communicated end to end.
3. The needle stick wound prevention injection device of claim 1, wherein: the inner diameter of the secondary pipe (12) is larger than that of the pipette (11), and the pipette (11) is connected with the secondary pipe (12) in a sliding manner.
4. The needle stick wound prevention injection device of claim 1, wherein: the nipple (16) and the needle (17) pass through the through hole (31).
5. The needle stick wound prevention injection device of claim 1, wherein: two inclined planes (231) are symmetrically arranged on the push block (23).
6. A needle stick wound prevention injection device as claimed in claim 5, wherein: the inclined plane (231) is provided with anti-skid grains (232).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921152475.7U CN210844699U (en) | 2019-07-22 | 2019-07-22 | Prevent that acupuncture hinders injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921152475.7U CN210844699U (en) | 2019-07-22 | 2019-07-22 | Prevent that acupuncture hinders injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210844699U true CN210844699U (en) | 2020-06-26 |
Family
ID=71282178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921152475.7U Active CN210844699U (en) | 2019-07-22 | 2019-07-22 | Prevent that acupuncture hinders injection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210844699U (en) |
-
2019
- 2019-07-22 CN CN201921152475.7U patent/CN210844699U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |