CN111214728B - Disposable self-destroying syringe - Google Patents
Disposable self-destroying syringe Download PDFInfo
- Publication number
- CN111214728B CN111214728B CN201811500030.3A CN201811500030A CN111214728B CN 111214728 B CN111214728 B CN 111214728B CN 201811500030 A CN201811500030 A CN 201811500030A CN 111214728 B CN111214728 B CN 111214728B
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- Prior art keywords
- belt
- breakable
- groove
- cross core
- degree
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/50—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
- A61M5/5013—Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe
- A61M5/502—Means for blocking the piston or the fluid passageway to prevent illegal refilling of a syringe for blocking the piston
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/50—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for preventing re-use, or for indicating if defective, used, tampered with or unsterile
- A61M5/5066—Means for preventing re-use by disconnection of piston and piston-rod
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- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention relates to a disposable self-destroying injector, which consists of a cross core bar, a sleeve, an upper cover, a lower cover, a breakable belt, a cylindrical groove and a rubber plug, wherein the cross core bar and the breakable belt are arranged in the upper cover and the lower cover which are fastened, the cylindrical groove in the breakable belt is arranged in the rubber plug, when the rubber plug is arranged in the sleeve and a push-pull handle is pushed, the groove on a 60-degree chamfer in the cross core bar gradually moves towards the axis direction when the groove on the 60-degree chamfer in the cross core bar moves forwards, the inclined surface in the top end of the lower cover is firstly promoted to be separated from the inclined surface on the top end of the other side of the 30-degree V-shaped hook in the breakable belt, and simultaneously the breakable mark point is broken, namely, the double functions of falling off at one place and breaking at the other place are achieved, and the rubber plug can not move outwards to extract liquid medicine at the moment, so that automatic destroying is achieved.
Description
Technical Field
The invention relates to an injector device, in particular to a disposable self-destroying injector which can be automatically destroyed after injection is completed.
Background
The health department prescribes that the disposable injector is destroyed on the spot after use, and the phenomenon of repeated use is stopped, and the measures are to cut off the transmission path, control the infectious agents, protect the susceptible people and eliminate the pathogens from the perspective of preventing infectious diseases. However, since the disposable syringe is made of high polymer polypropylene, the disposable syringe can be used for several times after being used once, which is very common in some private clinics or private clinics in remote mountain areas, and the disposable syringe is available in the market at present, but has not been fully popularized due to high cost or other reasons.
Disclosure of Invention
In order to overcome the defect that the injector can not be self-destroyed after being used and can still be reused, the invention provides a disposable self-destroyed injector which can be automatically destroyed after being injected, thereby avoiding the defect of repeated use.
The invention solves the technical problems by adopting the technical proposal that the invention consists of a cross core bar, a sleeve, an upper cover, a lower cover, a breakable belt, a cylindrical groove and a rubber plug, wherein, two sides of the top end of one side of the cross core bar are respectively inwards provided with 60-degree chamfers, each 60-degree chamfer is provided with a groove, the lower end of the groove is provided with a rectangular through hole, the outer side of the groove is provided with a convex step, the other side of the groove is provided with a push-pull handle, one end of the breakable belt is provided with four claws which are equal in part, the contact part of the top ends of the four claws and the cylindrical groove is provided with 60-degree chamfers, which are breakable crease points, wherein the other end of each claw is provided with a 30-degree V-shaped hook, the top end of the other side of the 30-degree V-shaped hook is provided with an inclined plane, the top end of the upper cover is provided with a step through hole, the outer side of the other end is provided with a concave clamping groove, the top end of the lower cover is provided with a through hole, and the through hole is provided with an inclined plane, the inner side of the other end of the upper cover is provided with a convex clamping groove, the other side of the 30-degree V-shaped hook in the frangible belt is firstly arranged in a groove arranged on a 60-degree chamfer angle in the cross core bar, after the upper cover passes through a push-pull handle of the cross core bar, the inner side of a step through hole in the top end of the upper cover is contacted with a convex step arranged on the outer side of the groove in the cross core bar so as to prevent the cross core bar from falling off, after the lower cover passes through a cylindrical groove connected with the frangible belt, the inclined surface in the top end of the lower cover is contacted with the inclined surface on the other side of the 30-degree V-shaped hook in the frangible belt so as to prevent the frangible belt from falling off, finally, the concave-convex clamping groove arranged on the inner side and the outer side of the upper cover is fastened, and the cylindrical groove connected with the frangible belt is simultaneously arranged in a rubber plug, and the rubber plug is arranged in a sleeve, and the cross core bar and the frangible belt are mutually held together through the mutual fastening of the upper cover and the lower cover during medicine drawing, when the push-pull handle is pushed, the groove on the 60-degree chamfer in the cross core rod is pushed forward to move the other side of the 30-degree V-shaped hook in the frangible belt arranged in the groove, and the inner hole of the needle head is very thin, so that the medicine liquid can be pushed with certain force, and friction force is generated when the cross core rod pushes the rubber plug to move in the sleeve to push the medicine liquid, so that the other side of the 30-degree V-shaped hook in the frangible belt gradually moves towards the axis direction under the action of the friction force, and the movement can firstly promote the inclined plane in the top end of the lower cover to separate from the inclined plane in the other side of the 30-degree V-shaped hook in the frangible belt, and simultaneously break the four claws and the cylindrical groove at the frangible crease point, namely achieve the double-break automatic destroying effect of breaking the other side, and the medicine liquid can not be extracted.
The invention has the advantages that the invention can be automatically destroyed after the injection is completed, thereby avoiding the defect of repeated use.
Drawings
The invention will be further described with reference to the drawings and examples.
Fig. 1 is a cross-sectional view of the structure of the present invention.
In the figure, a cross core bar, a sleeve, an upper cover, a lower cover, an easy-to-break belt, a cylindrical groove and a rubber plug are shown in the specification, wherein the cross core bar, the sleeve and the upper cover are shown in the specification, and the rubber plug is shown in the specification.
Description of the embodiments
The novel plastic rubber plug consists of a cross core bar (1), a sleeve (2), an upper cover (3), a lower cover (4), a breakable belt (5), a cylindrical groove (6) and a rubber plug (7), wherein two sides of the top cross at one side of the cross core bar (1) are respectively inwards provided with 60-degree chamfers, each 60-degree chamfer is provided with a groove, the lower end of the groove is provided with a rectangular through hole, the outer side of the groove is provided with a convex step, the other side of the groove is provided with a push-pull handle, one end of the breakable belt (5) is provided with four equal parts of claws, the contact part of the top ends of the four claws and the cylindrical groove (6) is provided with 60-degree chamfers, the breakable crease point is formed here, the other end of each claw is provided with a 30-degree V-shaped hook, the top end of the other side of the 30-degree V-shaped hook is provided with an inclined plane, the top end of the upper cover (3) is provided with a step through hole, the outer side of the other end of the upper cover is provided with a concave clamping groove, the top end of the lower cover (4) is provided with a through hole, the through hole is provided with an inclined plane, the inner side of the other end of the lower cover is provided with a convex clamping groove, the other side of the 30-degree V-shaped hook arranged in the frangible belt (5) is firstly arranged in a groove arranged on a 60-degree chamfer angle in the cross core bar (1), after the upper cover (3) passes through a push-pull handle of the cross core bar (1), the inner side of the step through hole in the top end of the upper cover (3) is contacted with a convex step arranged on the outer side of the groove in the cross core bar (1) to prevent the cross core bar (1) from falling, after the lower cover (4) passes through the cylindrical groove (6) in the breakable belt (5), the inclined plane in the top end of the lower cover (4) is contacted with the inclined plane in the other side top end of the 30-degree V-shaped hook in the breakable belt (5) so as to prevent the breakable belt (5) from falling off, and finally the upper cover (3) is fastened with the concave-convex clamping groove arranged on the inner side and the outer side of the lower cover (4), and meanwhile, the cylindrical groove (6) in the breakable belt (5) is filled in the rubber plug (7), and the rubber plug (7) is filled in the sleeve (2).
It should be noted that, in this document, references to "left", "right", "front", "rear", "inner", "outer", "upper", "lower", etc. indicate that the azimuth or the positional relationship is based on the positional relationship in the working state or shown in the drawings, and are merely for convenience of describing the present technical solution and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be configured or operated in a specific azimuth, and therefore, should not be construed as limiting the technical solution, and the connection relationship may refer to a direct connection relationship or an indirect connection relationship.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (2)
1. A disposable self-destroying injector is characterized in that: the utility model consists of a cross core bar, a sleeve, an upper cover, a lower cover, a breakable belt, a cylindrical groove and a rubber plug, wherein, two sides of the top cross at one side of the cross core bar are respectively provided with a 60-degree chamfer inwards, each 60-degree chamfer is provided with a groove, the lower end of the groove is provided with a rectangular through hole, the outside of the groove is provided with a convex step, the other side of the groove is provided with a push-pull handle, one end of the breakable belt is provided with four equally divided claws, the contact part of the top of the four claws and the cylindrical groove is provided with a 60-degree chamfer, which is also a breakable crease point, wherein, the other end of each claw is provided with a 30-degree V-shaped hook, the top of the other side of the 30-degree V-shaped hook is provided with an inclined plane, the top of the upper cover is provided with a step through hole, the outer side of the other end is provided with a concave clamping groove, the top of the lower cover is provided with a through hole, the inner side of the other end of the lower cover is provided with a convex clamping groove, the other side of the V-shaped hook with the angle of 30 degrees in the frangible belt is firstly arranged in a groove arranged on a chamfer with the angle of 60 degrees in the cross core bar, after the upper cover passes through a push-pull handle of the cross core bar, the inner side of a step through hole in the top end of the upper cover is contacted with a convex step arranged on the outer side of the groove in the cross core bar so as to prevent the cross core bar from falling off, after the lower cover passes through a cylindrical groove connected with the frangible belt, the inclined surface in the top end of the lower cover is contacted with the inclined surface of the other side of the V-shaped hook with the angle of 30 degrees in the frangible belt so as to prevent the frangible belt from falling off, finally, the concave-convex clamping groove arranged on the inner side and the outer side of the upper cover is fastened, and the cylindrical groove connected with the frangible belt is simultaneously arranged in a rubber plug, and the rubber plug is arranged in a sleeve.
2. The method of using a disposable self-destroying syringe according to claim 1, wherein: when the medicine is pumped, the cross core rod and the breakable belt are mutually fastened through the upper cover and the lower cover, the medicine is pushed by a certain force when the push-pull handle is pulled outwards and the rubber plug is driven to move outwards, and when the medicine is pushed, the other side of the 30-degree V-shaped hook in the breakable belt is gradually moved towards the axis direction through the action of the friction force when the cross core rod and the breakable belt are in the mutually fastened area of the upper cover and the lower cover, but the mutual restriction of the cross core rod and the breakable belt is not needed, at the moment, when the push-pull handle is pushed, the groove on the 60-degree chamfer in the cross core rod is used for pushing the other side of the 30-degree V-shaped hook in the breakable belt to move forwards, and at the moment, the broken claw can not be automatically pulled out due to the fact that the inner hole of the needle is very thin, and the rubber plug is pushed to move in the sleeve, and the friction force is generated when the cross core rod is used for pushing the rubber plug to move the medicine, the other side of the 30-degree V-shaped hook in the breakable belt is gradually moved towards the axis direction, and the inclined plane in the top of the breakable belt is firstly caused, the inclined plane in the top of the breakable belt is separated from the inclined plane of the top of the breakable belt, and the other side of the groove is broken off, and the broken point can not be automatically pulled out, and the broken point can be simultaneously moved to the other side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811500030.3A CN111214728B (en) | 2018-11-27 | 2018-11-27 | Disposable self-destroying syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811500030.3A CN111214728B (en) | 2018-11-27 | 2018-11-27 | Disposable self-destroying syringe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111214728A CN111214728A (en) | 2020-06-02 |
| CN111214728B true CN111214728B (en) | 2023-06-02 |
Family
ID=70807743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811500030.3A Active CN111214728B (en) | 2018-11-27 | 2018-11-27 | Disposable self-destroying syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111214728B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004007005A1 (en) * | 2002-07-15 | 2004-01-22 | Joint Ukranian-German Enterprise 'amtek Ltd.' | A single-use syringe incorporating a sliding protection sheath___for the needle |
| CN2662922Y (en) * | 2003-11-05 | 2004-12-15 | 山东淄博山川医用器材有限公司 | Disposable safety syringe |
| CN2863143Y (en) * | 2005-12-07 | 2007-01-31 | 林作钱 | Safe self-destruction syringe |
| CN101020091A (en) * | 2007-02-12 | 2007-08-22 | 林作钱 | Self-destroying insulin injector |
| CN200973892Y (en) * | 2006-11-10 | 2007-11-14 | 林作钱 | Self-destroyed type injector push rod |
| CN201930354U (en) * | 2011-01-19 | 2011-08-17 | 山东淄博山川医用器材有限公司 | Disposable small-dose auto-disable syringe |
| CN202822347U (en) * | 2012-10-24 | 2013-03-27 | 原丽 | Auto-disable syringe |
| CN205073425U (en) * | 2015-10-14 | 2016-03-09 | 淮安市恒春医疗器材有限公司 | Self -destructive disposable syringe |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040006315A1 (en) * | 2002-07-08 | 2004-01-08 | Pi-Chang Lo | Syringe structure |
-
2018
- 2018-11-27 CN CN201811500030.3A patent/CN111214728B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004007005A1 (en) * | 2002-07-15 | 2004-01-22 | Joint Ukranian-German Enterprise 'amtek Ltd.' | A single-use syringe incorporating a sliding protection sheath___for the needle |
| CN2662922Y (en) * | 2003-11-05 | 2004-12-15 | 山东淄博山川医用器材有限公司 | Disposable safety syringe |
| CN2863143Y (en) * | 2005-12-07 | 2007-01-31 | 林作钱 | Safe self-destruction syringe |
| CN200973892Y (en) * | 2006-11-10 | 2007-11-14 | 林作钱 | Self-destroyed type injector push rod |
| CN101020091A (en) * | 2007-02-12 | 2007-08-22 | 林作钱 | Self-destroying insulin injector |
| CN201930354U (en) * | 2011-01-19 | 2011-08-17 | 山东淄博山川医用器材有限公司 | Disposable small-dose auto-disable syringe |
| CN202822347U (en) * | 2012-10-24 | 2013-03-27 | 原丽 | Auto-disable syringe |
| CN205073425U (en) * | 2015-10-14 | 2016-03-09 | 淮安市恒春医疗器材有限公司 | Self -destructive disposable syringe |
Non-Patent Citations (1)
| Title |
|---|
| 经皮改良张力带钢丝内固定法治疗髌骨骨折;王培信等;《实用骨科杂志》;20061228(第06期);全文 * |
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| Publication number | Publication date |
|---|---|
| CN111214728A (en) | 2020-06-02 |
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