CN220459713U - Retractable rubber-plug-free self-destruction injector - Google Patents
Retractable rubber-plug-free self-destruction injector Download PDFInfo
- Publication number
- CN220459713U CN220459713U CN202321094369.4U CN202321094369U CN220459713U CN 220459713 U CN220459713 U CN 220459713U CN 202321094369 U CN202321094369 U CN 202321094369U CN 220459713 U CN220459713 U CN 220459713U
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- CN
- China
- Prior art keywords
- push rod
- needle
- elastic
- locking cavity
- cylinder
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- 238000007789 sealing Methods 0.000 claims abstract description 25
- 238000002347 injection Methods 0.000 claims abstract description 16
- 239000007924 injection Substances 0.000 claims abstract description 16
- 230000003014 reinforcing effect Effects 0.000 claims description 8
- 230000005489 elastic deformation Effects 0.000 claims description 2
- 238000001746 injection moulding Methods 0.000 claims description 2
- 206010011409 Cross infection Diseases 0.000 abstract description 6
- 206010029803 Nosocomial infection Diseases 0.000 abstract description 6
- 238000011084 recovery Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 208000012260 Accidental injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000009517 secondary packaging Methods 0.000 description 1
Abstract
The utility model relates to the technical field of self-destruction syringes, in particular to a retractable rubber-plug-free self-destruction syringe. The novel elastic sealing device comprises a needle cylinder and an integrated push rod, wherein the integrated push rod comprises a push rod body, a breaking groove is formed in the middle of the push rod body along the circumferential direction, the cross section area of a rod body at the position of the breaking groove is smaller than that of the rod body of the push rod body, an elastic sealing body is arranged at the front end of the push rod body, a round of annular deformation annular groove is formed in the elastic sealing body along the circumferential direction, the side surface of the elastic sealing body is in sealing contact with the inner surface of the needle cylinder, and the elastic sealing body can radially and elastically deform towards the deformation annular groove. The integrated push rod can be broken and destroyed through the breaking groove, and the needle head can be retracted into the needle cylinder after injection and cannot be easily disassembled, so that the cross infection problem caused by the secondary recovery of the used needle head is avoided.
Description
Technical Field
The utility model relates to the technical field of self-destruction syringes, in particular to a retractable rubber-plug-free self-destruction syringe.
Background
Syringes are the most commonly used medical devices, mainly for drawing or injecting gases or liquids with needles. The syringe cannot be reused, but many times the syringe may be reused due to misoperation, so that cross infection is caused, and medical accidents are caused, so that the used syringe needs to be destroyed in order to avoid the occurrence of the accidents.
In the prior art, some lawless persons take down the recovered injector to replace a new push rod for making a profit and then carry out secondary packaging and sales, so that serious cross infection is caused to patients, and therefore, aiming at the problems, a retractable rubber-plug-free self-destruction injector needs to be developed.
Disclosure of Invention
The utility model provides a to the shortcoming among the above-mentioned prior art, provide a rational in infrastructure's shrink formula no plug self-destruction syringe, can let the syringe needle retract to the cylinder in unable easy dismantlement after the injection, avoid the syringe needle after the use to be by the cross infection problem emergence that secondary recycle caused.
The technical scheme adopted by the utility model is as follows:
the utility model provides a no plug self-destruction syringe of shrink formula, includes cylinder and integral type push rod, integral type push rod front end stretches into the cylinder inner chamber and can slide along the cylinder front and back, and needle file tail end is connected in the locking of integral type push rod front end, and needle file front end center sets up the injection needle, and needle file front end stretches out the cylinder front end, integral type push rod includes the push rod body, push rod body middle part sets up the fracture groove along circumference, fracture groove position department body of rod cross-section area is less than the body of rod cross-section area of push rod body, push rod body front end sets up the elastic seal body, set up round annular deformation annular along the circumferencial direction in the elastic seal body, elastic seal body side and cylinder internal surface sealing contact, the elastic seal body can radially elastic deformation to deformation annular direction.
Further, the front end of the needle cylinder can be sleeved with a sheath, and the sheath can cover the injection needle exposed outside the needle cylinder.
Further, the integral push rod is integrally injection molded.
Further, the tail end of the push rod body extends out of the inner cavity of the needle cylinder, the tail end of the push rod body is provided with a thrust plate, the diameter of the thrust plate is larger than that of the needle cylinder, and the thrust plate can prevent the tail end of the push rod body from completely immersing into the inner cavity of the needle cylinder.
Further, set up the neck pole on the push rod body, the neck pole is located the elastic sealing body tail end, and a plurality of reinforcement cylinder are set firmly to the neck pole surface, and a plurality of reinforcement cylinder are along circumferencial direction evenly distributed.
Further, the base is arranged at the central position in the elastic sealing body, the upper end face of the base is provided with a convex elastic joint, the central position of the elastic joint is vertically provided with a deformation opening, the deformation opening extends from the upper end face of the elastic joint to the lower part of the elastic joint, the elastic joint is divided into two parts through the deformation opening, a locking cavity is arranged in the needle base, the tail end face of the needle base is provided with an opening, the opening is communicated with the locking cavity, the diameter of the opening is smaller than that of the locking cavity, the elastic joint can extend into the locking cavity through the opening to be locked and connected with the locking cavity, the side face of the elastic joint is in compression contact with the side face of the locking cavity, the lower end face of the elastic joint is in contact with the lower end face of the locking cavity, and the lower end face of the locking cavity is used for blocking the lower end face of the elastic joint from falling out of the locking cavity.
Further, the cross section area of the elastic joint is changed from top to bottom, and the cross section area of the locking cavity is changed from top to bottom.
The beneficial effects of the utility model are as follows:
the integrated push rod can be broken and destroyed through the breaking groove, and the needle head can be retracted into the needle cylinder after injection and cannot be easily disassembled, so that the cross infection problem caused by the secondary recovery of the used needle head is avoided; the integral push rod is integrally injection molded, so that the cost is low, and the elastic sealing body is used for replacing the traditional rubber plug, so that the process is simplified, the production cost is reduced, and the environmental pollution in the production process of the rubber plug is avoided; the outer surface of the neck is fixedly provided with a plurality of reinforcing columns, and the structural strength of the neck is improved through the plurality of reinforcing columns; the elastic sealing body and the needle seat can be conveniently and rapidly connected stably and reliably.
Drawings
Fig. 1 is a perspective view of the present utility model.
Fig. 2 is a perspective view of the integrated push rod and hub assembly of the present utility model.
Fig. 3 is a perspective view of an integrated putter in accordance with the present utility model.
Fig. 4 is an enlarged view at a in fig. 3.
Fig. 5 is a perspective view of the hub of the present utility model.
Fig. 6 is a semi-sectional view of the integrated push rod and hub assembly of the present utility model.
Wherein: 1. a needle cylinder; 2. a push rod body; 3. a needle stand; 4. an injection needle; 5. breaking the groove; 6. a thrust plate; 7. an elastic sealing body; 8. a reinforcing column; 9. a deformation ring groove; 10. an elastic joint; 11. deforming the opening; 12. a locking cavity; 13. a neck; 14. a base; 15. an opening.
Detailed Description
The following describes specific embodiments of the present utility model with reference to the drawings.
As shown in fig. 1 and 2, the retracting type rubber plug-free self-destruction injector comprises a needle cylinder 1 and an integrated push rod, wherein the front end of the integrated push rod stretches into the inner cavity of the needle cylinder 1 and can slide back and forth along the needle cylinder 1, the front end of the integrated push rod is tightly locked and connected with the tail end of a needle seat 3, an injection needle 4 is arranged in the center of the front end of the needle seat 3, and the front end of the needle seat 3 stretches out of the front end of the needle cylinder 1, so that the injection needle 4 is exposed outside the needle cylinder 1.
The front end of the needle cylinder 1 can be sleeved with a sheath, and the sheath can cover the injection needle 4 exposed outside the needle cylinder 1, so that accidental injury of the injection needle 4 to a person is avoided.
As shown in fig. 3, the integral push rod is formed by integral injection molding, so that the manufacturing cost is low and the production efficiency is high. The integral type push rod includes rectangular push rod body 2, and push rod body 2 middle part sets up breaking groove 5 along circumference, and breaking groove 5 position department body of rod cross-sectional area is less than push rod body 2's body of rod cross-sectional area for push rod body 2 receives the easy rupture of external force in breaking groove 5 position department. The front end of the push rod body 2 is provided with an elastic sealing body 7, a circle of deformation annular groove 9 is arranged in the elastic sealing body 7 along the circumferential direction, and the elastic sealing body 7 can radially and elastically deform towards the deformation annular groove 9. The side surface of the elastic sealing body 7 is in sealing contact with the inner surface of the syringe 1, and the elastic sealing body 7 is pressed to the deformation ring groove 9 by the inner wall of the syringe 1 to elastically deform when being arranged in the syringe 1. In the utility model, the elastic sealing body 7 is used for replacing the traditional rubber plug, thereby not only simplifying the process and reducing the production cost, but also avoiding the environmental pollution in the production process of the rubber plug.
As shown in fig. 4, a base 14 is located at the central position in the elastic sealing body 7, a protruding elastic joint 10 is arranged on the upper end face of the base 14, a deformation opening 11 is vertically arranged at the central position of the elastic joint 10, the deformation opening 11 extends from the upper end face of the elastic joint 10 to the lower portion of the elastic joint 10, the elastic joint 10 is divided into two parts through the deformation opening 11, and the elastic joint 10 can be radially deformed through the arrangement of the deformation opening 11.
As shown in fig. 5, a locking cavity 12 is arranged in the needle seat 3, an opening 15 is arranged on the tail end surface of the needle seat 3, the opening 15 is communicated with the locking cavity 12, the diameter of the opening 15 is smaller than that of the locking cavity 12, and the elastic connector 10 can extend into the locking cavity 12 through the opening 15 to be in locking connection with the locking cavity 12.
As shown in fig. 6, the side surface of the elastic joint 10 is in compression contact with the side surface of the locking cavity 12, the lower end surface of the elastic joint 10 is in contact with the lower end surface of the locking cavity 12, and the lower end surface of the locking cavity 12 blocks the lower end surface of the elastic joint 10 from falling out of the locking cavity 12.
As shown in fig. 6, the cross-sectional area of the elastic joint 10 is increased from top to bottom, and this structure facilitates the installation of the elastic joint 10 from the opening 15, and the cross-sectional area of the locking cavity 12 is increased from top to bottom.
As shown in fig. 3, the push rod body 2 is provided with a neck 13, the neck 13 is located at the tail end of the elastic sealing body 7, the outer surface of the neck 13 is fixedly provided with a plurality of reinforcing columns 8, the reinforcing columns 8 are uniformly distributed along the circumferential direction, and the plurality of reinforcing columns 8 can improve the structural strength of the neck 13.
As shown in fig. 1 and 2, the tail end of the push rod body 2 extends out of the inner cavity of the needle cylinder 1, the tail end of the push rod body 2 is provided with a thrust plate 6, the diameter of the thrust plate 6 is larger than that of the needle cylinder 1, and the thrust plate 6 can prevent the tail end of the push rod body 2 from completely sinking into the inner cavity of the needle cylinder 1, so that the push rod body 2 cannot exit from the inner cavity of the needle cylinder 1.
When the integrated push rod and needle holder 3 are assembled, the elastic joint 10 extends into the locking cavity 12 through the opening 15, and due to the existence of the deformation opening 11, the elastic joint 10 can radially deform to reduce the cross-sectional area, so that the elastic joint is extruded into the opening 15 and enters the locking cavity 12. After entering the locking cavity 12, the elastic connector 10 automatically stretches, the side surface of the elastic connector 10 is in compression contact with the side surface of the locking cavity 12, the lower end surface of the elastic connector 10 is in contact with the lower end surface of the locking cavity 12, and the lower end surface of the locking cavity 12 stops the lower end surface of the elastic connector 10 from falling out of the locking cavity 12, so that the locking connection of the integrated push rod and the needle seat 3 is realized.
The working principle of the utility model is as follows: after the injection is completed by using the injector, the integral push rod is pulled backwards, so that the breaking groove 5 is exposed out of the needle cylinder 1, then breaking force is applied to the rod body at the position of the breaking groove 5, the rear section of the integral push rod is broken and destroyed under the action of external force, and at the moment, the injection needle 4 is positioned in the needle cylinder 1 and cannot be easily disassembled and taken out, so that the cross infection problem caused by secondary recycling of the needle after use is avoided.
The above description is intended to illustrate the utility model and not to limit it, the scope of which is defined by the claims, and any modifications can be made within the scope of the utility model.
Claims (7)
1. The utility model provides a no plug self-destruction syringe of retract, includes cylinder (1) and integral type push rod, integral type push rod front end stretches into cylinder (1) inner chamber and can slide along cylinder (1) front and back, and needle file (3) tail end is connected in integral type push rod front end locking, and needle file (3) front end center sets up injection needle (4), and needle file (3) front end stretches out cylinder (1) front end, its characterized in that: the utility model provides an integral type push rod includes push rod body (2), push rod body (2) middle part sets up breaking groove (5) along circumference, breaking groove (5) position department body of rod cross-sectional area is less than the body of rod cross-sectional area of push rod body (2), push rod body (2) front end sets up elastic seal body (7), set up round annular deformation annular (9) along the circumferencial direction in elastic seal body (7), elastic seal body (7) side and cylinder (1) internal surface sealing contact, elastic seal body (7) can take place radial elastic deformation to deformation annular (9) direction.
2. The retractable plug-free self-destruct syringe of claim 1, and further comprising: the front end of the needle cylinder (1) can be sleeved with a sheath, and the sheath can cover the injection needle (4) exposed outside the needle cylinder (1).
3. The retractable plug-free self-destruct syringe of claim 1, and further comprising: the integral push rod is formed by integral injection molding.
4. A retractable plug-free self-destructing syringe according to claim 3 and characterized in that: the tail end of the push rod body (2) extends out of the inner cavity of the needle cylinder (1), the tail end of the push rod body (2) is provided with a thrust plate (6), the diameter of the thrust plate (6) is larger than that of the needle cylinder (1), and the thrust plate (6) can prevent the tail end of the push rod body (2) from completely immersing into the inner cavity of the needle cylinder (1).
5. The retractable rubber-plug-free self-destruct syringe of claim 4, and further comprising: the push rod body (2) is provided with a neck (13), the neck (13) is positioned at the tail end of the elastic sealing body (7), the outer surface of the neck (13) is fixedly provided with a plurality of reinforcing columns (8), and the reinforcing columns (8) are uniformly distributed along the circumferential direction.
6. The retractable rubber-plug-free self-destruct syringe of claim 5, characterized in that: the elastic sealing device is characterized in that a base (14) is arranged at the central position in the elastic sealing body (7), a convex elastic joint (10) is arranged on the upper end face of the base (14), a deformation opening (11) is vertically arranged at the central position of the elastic joint (10), the deformation opening (11) extends to the lower portion of the elastic joint (10) from the upper end face of the elastic joint (10), the elastic joint (10) is divided into two parts through the deformation opening (11), a locking cavity (12) is arranged in the needle seat (3), an opening (15) is arranged on the tail end face of the needle seat (3), the opening (15) is communicated with the locking cavity (12), the diameter of the opening (15) is smaller than the diameter of the locking cavity (12), the elastic joint (10) can extend into the locking cavity (12) through the opening (15) to be in locking connection with the locking cavity (12), the side face of the elastic joint (10) is in pressing contact with the side face of the locking cavity (12), the lower end face of the elastic joint (10) is in contact with the lower end face of the locking cavity (12), and the lower end face of the locking cavity (12) blocks the lower end face of the elastic joint (10) from being separated from the locking cavity (12).
7. The retractable rubber-plug-free self-destruct syringe of claim 6, and further comprising: the cross section area of the elastic joint (10) is changed from top to bottom, and the cross section area of the locking cavity (12) is changed from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321094369.4U CN220459713U (en) | 2023-05-09 | 2023-05-09 | Retractable rubber-plug-free self-destruction injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321094369.4U CN220459713U (en) | 2023-05-09 | 2023-05-09 | Retractable rubber-plug-free self-destruction injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220459713U true CN220459713U (en) | 2024-02-09 |
Family
ID=89799988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321094369.4U Active CN220459713U (en) | 2023-05-09 | 2023-05-09 | Retractable rubber-plug-free self-destruction injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220459713U (en) |
-
2023
- 2023-05-09 CN CN202321094369.4U patent/CN220459713U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |