CN222566476U - Elastic needle body protective cap device for prefilled syringe - Google Patents
Elastic needle body protective cap device for prefilled syringe Download PDFInfo
- Publication number
- CN222566476U CN222566476U CN202421055180.9U CN202421055180U CN222566476U CN 222566476 U CN222566476 U CN 222566476U CN 202421055180 U CN202421055180 U CN 202421055180U CN 222566476 U CN222566476 U CN 222566476U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- prefilled syringe
- needle
- seat
- needle body
- 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.)
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- 229940071643 prefilled syringe Drugs 0.000 title claims abstract description 38
- 230000001681 protective effect Effects 0.000 title claims description 10
- 230000001012 protector Effects 0.000 claims abstract description 9
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 238000007789 sealing Methods 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 9
- 239000003814 drug Substances 0.000 abstract description 8
- 230000001954 sterilising effect Effects 0.000 abstract description 7
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 7
- 238000003860 storage Methods 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 229940079593 drug Drugs 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 206010011409 Cross infection Diseases 0.000 description 1
- 206010029803 Nosocomial infection Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
本实用新型公开了一种预灌封注射器用弹性针体护帽器，包括用于预灌封注射器针体的护帽主体，护帽主体由弹性限位组件、本体和外套筒组合而成，弹性限位组件包括有固定安装在预灌封注射器外表面的针管套筒，针管套筒的外表面套装有弹簧，针管套筒外表面远离针体的一端固定安装有固定套座，针管套筒外表面靠近弹簧远离固定套座的一端活动安装有活动套座，本实用新型中通过设置的弹性限位组件和与锁紧外螺纹相适配的带内螺纹连接螺头，可使得整体预灌封注射器针体护帽利用螺旋安装弹性按压锁紧的安装方式可有效的防止预灌封注射器受到运输、灭菌、贮藏等活动影响内部的活塞发生滑动使得针帽受力导致密封性破坏，密封性强，利于保证药物质量。
The utility model discloses an elastic needle cap protector for a prefilled syringe, comprising a cap body for the needle body of the prefilled syringe, the cap body being composed of an elastic limiting component, a main body and an outer sleeve, the elastic limiting component comprising a needle tube sleeve fixedly mounted on the outer surface of the prefilled syringe, a spring being sleeved on the outer surface of the needle tube sleeve, a fixed sleeve seat being fixedly mounted on one end of the outer surface of the needle tube sleeve away from the needle body, and a movable sleeve seat being movably mounted on one end of the outer surface of the needle tube sleeve away from the fixed sleeve seat close to the spring. In the utility model, by providing an elastic limiting component and a connecting screw head with an internal thread matched with a locking external thread, the overall prefilled syringe needle body cap can be installed in a spirally installed elastically pressed and locked installation mode, which can effectively prevent the prefilled syringe from being affected by activities such as transportation, sterilization and storage, causing the internal piston to slide, causing the needle cap to be stressed and resulting in damage to the sealing performance, and the sealing performance is strong, which is beneficial to ensuring the quality of the medicine.
Description
Technical Field
The utility model relates to the technical field of prefilled syringes, in particular to an elastic needle body protective cap device for a prefilled syringe.
Background
The prefilled syringe has wide application in the medical industry, can reduce the risk of cross infection, ensures the disposable use of the syringe, thereby improving the quality and efficiency of medical care, in addition, the prefilled syringe can conveniently and rapidly perform medicine preparation and infusion, avoid errors and pollution possibly caused by manual operation, improve the accuracy and stability of injection,
In the production process of the prefilled syringe, the protective cap is selected according to the size of the tip end opening of the prefilled syringe, the prefilled syringe is easily sealed and not tight when the size is too large, the prefilled syringe is easily covered when the size is too small, the good sealing effect can be achieved after the size is held, but the piston is affected by the activities such as transportation, sterilization, storage and the like, the piston slides, the needle cap is stressed, the sealing property is damaged, the medicine quality is affected,
Therefore, it is important to design an elastic needle body cap protector for a prefilled syringe to solve the above-mentioned drawbacks.
Disclosure of utility model
1) Technical problem to be solved by the utility model
Aiming at the defects of the prior art, the utility model designs the elastic needle body cap protector for the pre-filling and sealing injector, which solves the technical problems that the prior pre-filling and sealing injector is affected by the activities such as transportation, sterilization, storage and the like, so that a piston slides, the needle cap is stressed, the sealing property is damaged, and the medicine quality is affected.
2) Technical proposal
In order to achieve the above purpose, the present utility model provides the following technical solutions:
The utility model provides an elasticity needle body helmet ware for prefilled syringe, includes the helmet main part that is used for prefilled syringe needle body, the helmet main part is formed by elasticity spacing subassembly, body and outer sleeve combination, elasticity spacing subassembly is including the needle tubing sleeve of fixed mounting at prefilled syringe surface, the telescopic surface cover of needle tubing is equipped with the spring, the one end fixed mounting who keeps away from the needle body of needle tubing sleeve surface has fixed cover seat, the one end movable mounting that the needle tubing sleeve surface is close to the spring and keeps away from fixed cover seat has movable cover seat, needle tubing sleeve surface is close to needle body one end department and is provided with locking external screw thread, the body is including the taper sleeve of taking internal thread connection spiral shell head and suit at the needle body external surface with locking external screw thread looks adaptation.
As the preferable scheme of the utility model, the elastic limiting component is positioned in the outer sleeve, the needle tube sleeve, the fixed sleeve seat and the outer sleeve are integrally formed and molded, and the threaded connection screw head and the taper sleeve are integrally formed and molded.
As a preferable scheme of the utility model, the diameters of the fixed sleeve seat and the movable sleeve seat are the same, a spring groove is formed in one end face of the fixed sleeve seat and one end face of the movable sleeve seat, two ends of the spring are respectively embedded into the spring groove arranged in one end face of the fixed sleeve seat and one end face of the movable sleeve seat, and a needle tube penetrating groove matched with a needle tube of the prefilled syringe is formed in the needle tube sleeve in a penetrating mode.
As a preferable scheme of the utility model, the diameters of the threaded head with the internal thread and the movable sleeve seat are the same, and the periphery of the outer surface of the taper sleeve is provided with an anti-skid groove.
As a preferable scheme of the utility model, a fixed seat mounting groove is formed in one end face of the outer sleeve, and the fixed sleeve is positioned in the fixed seat mounting groove.
As a preferable scheme of the utility model, a movable cavity is arranged in the outer sleeve, and the diameter of the movable cavity is slightly larger than that of the fixed seat mounting groove.
3) Advantageous effects
Compared with the prior art, the utility model has the beneficial effects that:
According to the utility model, through the elastic limiting component and the threaded connection screw head with the internal thread matched with the locking external thread, the installation mode that the needle body protective cap of the integral prefilled syringe is pressed and locked by using the spiral installation elasticity can effectively prevent the prefilled syringe from sliding due to the influence of activities such as transportation, sterilization, storage and the like on the piston inside, so that the needle cap is stressed to cause the damage of tightness, the tightness is strong, the quality of medicines is guaranteed, and the problems raised in the background art are effectively solved.
Drawings
FIG. 1 is a schematic view of the overall three-dimensional exterior structure of the present utility model;
FIG. 2 is a schematic view of the overall expanded perspective structure of the present utility model;
FIG. 3 is a schematic view of a three-dimensional enlarged structure of an elastic limiting assembly according to the present utility model;
FIG. 4 is a schematic view of a three-dimensional enlarged structure of a body according to the present utility model;
FIG. 5 is a schematic view of an enlarged perspective structure of an outer sleeve according to the present utility model;
In the figure, 1, a protective cap main body; 2, an elastic limiting component, 21, a needle tube sleeve, 22, a spring, 23, a fixed sleeve seat, 24, a movable sleeve seat, 25, a locking external thread, 26, a spring groove, 27, a needle tube penetrating groove, 3, a body, 31, a threaded connection screw head with an internal thread, 32, a taper sleeve, 33, an anti-slip groove, 4, an outer sleeve, 41, a fixed seat mounting groove and 42, and a movable cavity.
Detailed Description
The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present utility model are included in the protection scope of the present utility model.
Examples:
The embodiment of the utility model provides an elastic needle body protective cap device for a pre-filling and sealing syringe, which solves the technical problems that the prior pre-filling and sealing syringe is affected by the activities such as transportation, sterilization, storage and the like, so that a piston slides, the needle cap is stressed, the sealing property is damaged, and the medicine quality is affected;
Referring to fig. 1-5, the utility model provides an elastic needle body cap protector for a prefilled syringe, which comprises a cap body 1 for prefilled syringe needle body, wherein the cap body 1 is formed by combining an elastic limiting component 2, a body 3 and an outer sleeve 4, the elastic limiting component 2 is positioned in the outer sleeve 4,
Wherein, the elastic limit component 2 comprises a needle tube sleeve 21 fixedly arranged on the outer surface of the prefilled syringe, a spring 22 is sleeved on the outer surface of the needle tube sleeve 21, a fixed sleeve seat 23 is fixedly arranged at one end of the outer surface of the needle tube sleeve 21 far away from the needle body, a movable sleeve seat 24 is movably arranged at one end of the outer surface of the needle tube sleeve 21 near the spring 22 far away from the fixed sleeve seat 23, a locking external thread 25 is arranged at one end of the outer surface of the needle tube sleeve 21 near the needle body, the needle tube sleeve 21, the fixed sleeve seat 23 and the outer sleeve 4 are integrally formed and molded, the body 3 comprises an internal thread connection screw head 31 matched with the locking external thread 25 and a taper sleeve 32 sleeved on the outer surface of the needle body, the internal thread connection screw head 31 and the taper sleeve 32 are integrally formed and molded, a fixed seat mounting groove 41 is arranged at one end surface of the outer sleeve 4, a movable cavity 42 is arranged in the outer sleeve 4, and when sealed, the needle body of the prefilled syringe penetrates through the interior of the threaded connection screw head 31 and enters the interior of the taper sleeve 32, the threaded connection screw head 31 and the needle tube sleeve 21 are in threaded connection through the locking external thread 25, the movable sleeve seat 24 is stressed to continuously extrude the spring 22 in the process of spiral rotation, after spiral installation is completed, the movable sleeve seat 24 can be reversely extruded by the reaction force of the spring 22 to the threaded connection screw head 31, thereby locking the threaded connection screw head 31, effectively preventing the prefilled syringe from being influenced by the activities such as transportation, sterilization, storage and the like, sliding the piston inside to cause the damage of tightness due to the stress of the needle cap, having strong tightness, being beneficial to ensuring the quality of medicines, ensuring the whole appearance after being sealed by the arranged outer sleeve 4, preventing the elastic limit assembly 2 from being exposed outside, and protecting the sealed connection part for the second time on the other hand, the safety is improved;
In addition, in this embodiment, please refer to fig. 3, a spring groove 26 is provided on one end face of the fixed sleeve seat 23 and the movable sleeve seat 24 close to each other, two ends of the spring 22 are respectively embedded into the spring groove 26 provided on one end face of the fixed sleeve seat 23 and the movable sleeve seat 24 close to each other, a needle tube penetrating groove 27 adapted to the needle tube of the prefilled syringe is provided inside the needle tube sleeve 21 in a penetrating manner, the spring 22 can be limited by the provided spring 26, the stability and reliability of the spring 22 are ensured, and the integral sealing is facilitated;
In addition, in this embodiment, referring to fig. 4, anti-slip grooves 33 are formed around the outer surface of the cone sleeve 32, and the body 3 is conveniently disassembled and used in a spiral manner through the anti-slip grooves 33 formed around the outer surface of the cone sleeve 32, so as to prevent slipping;
In addition, in this embodiment, referring to fig. 2, 3, 4 and 5, the diameters of the fixed socket 23 and the movable socket 24 are the same, the diameters of the threaded connection screw head 31 and the movable socket 24 are the same, the fixed socket 23 is located inside the fixed socket mounting groove 41, the diameter of the movable cavity 42 is slightly larger than the diameter of the fixed socket mounting groove 41, so that the movable socket 24 and the threaded connection screw head 31 can flexibly move in the movable cavity 42 under the condition of ensuring the regular overall appearance;
In the working process, when the prefilled syringe needle body penetrates through the inner part of the threaded connection screw head 31 and enters the conical sleeve 32, the threaded connection screw head 31 and the needle tube sleeve 21 are in threaded connection through the locking external threads 25, the movable sleeve seat 24 is stressed to continuously squeeze the spring 22 in the process of spiral rotation, after spiral installation is completed, the movable sleeve seat 24 can be reversely stressed by the reaction force of the spring 22 to squeeze the threaded connection screw head 31, so that the prefilled syringe is locked, and the piston in the prefilled syringe can be effectively prevented from sliding under the influence of activities such as transportation, sterilization, storage and the like, so that the sealing performance is damaged due to the stress of a needle cap, the sealing performance is strong, and the quality of medicines is guaranteed.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The elastic needle body protective cap device for the prefilled syringe comprises a protective cap main body (1) for the prefilled syringe needle body and is characterized in that the protective cap main body (1) is formed by combining an elastic limiting component (2), a body (3) and an outer sleeve (4), the elastic limiting component (2) comprises a needle tube sleeve (21) fixedly installed on the outer surface of the prefilled syringe, a spring (22) is sleeved on the outer surface of the needle tube sleeve (21), a fixed sleeve seat (23) is fixedly installed at one end, far away from the needle body, of the outer surface of the needle tube sleeve (21), a movable sleeve seat (24) is movably installed at one end, close to the spring (22), of the outer surface of the needle tube sleeve (21), close to one end of the needle body, locking external threads (25) are arranged, and the body (3) comprises a threaded connection screw head (31) with the locking external threads (25) and a taper sleeve (32) sleeved on the outer surface of the needle body.
2. The elastic needle body cap protector for the prefilled syringe of claim 1, wherein said elastic limiting component (2) is located inside the outer sleeve (4), said needle tube sleeve (21), said fixed sleeve seat (23) and said outer sleeve (4) are integrally formed, and said threaded connection screw head (31) and said taper sleeve (32) are integrally formed.
3. The elastic needle body cap protector for the prefilled syringe of claim 1, wherein the diameters of the fixed sleeve seat (23) and the movable sleeve seat (24) are the same, a spring groove (26) is formed in the end surfaces of the fixed sleeve seat (23) and the movable sleeve seat (24) close to each other, two ends of the spring (22) are respectively embedded and installed in the spring groove (26) in the end surfaces of the fixed sleeve seat (23) and the movable sleeve seat (24) close to each other, and a needle tube penetrating groove (27) matched with a needle tube of the prefilled syringe is formed in the needle tube sleeve (21) in a penetrating mode.
4. The elastic needle body cap protector for the prefilled syringe of claim 1, wherein the diameter of said threaded connection screw head (31) is the same as the diameter of said movable sleeve seat (24), and an anti-slip groove (33) is provided around the outer surface of said cone sleeve (32).
5. The elastic needle body cap protector for the prefilled syringe of claim 1, wherein a fixing seat mounting groove (41) is formed on one end face of said outer sleeve (4), and said fixing sleeve seat (23) is located inside said fixing seat mounting groove (41).
6. The elastic needle body cap protector for pre-filled and sealed syringe according to claim 5, wherein the inside of the outer sleeve (4) is provided with a movable cavity (42), and the diameter of the movable cavity (42) is slightly larger than that of the fixed seat mounting groove (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421055180.9U CN222566476U (en) | 2024-05-15 | 2024-05-15 | Elastic needle body protective cap device for prefilled syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421055180.9U CN222566476U (en) | 2024-05-15 | 2024-05-15 | Elastic needle body protective cap device for prefilled syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222566476U true CN222566476U (en) | 2025-03-07 |
Family
ID=94783789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421055180.9U Active CN222566476U (en) | 2024-05-15 | 2024-05-15 | Elastic needle body protective cap device for prefilled syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222566476U (en) |
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2024
- 2024-05-15 CN CN202421055180.9U patent/CN222566476U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |