CN106540360B - Self-waste disposable syringe - Google Patents
Self-waste disposable syringe Download PDFInfo
- Publication number
- CN106540360B CN106540360B CN201610972661.XA CN201610972661A CN106540360B CN 106540360 B CN106540360 B CN 106540360B CN 201610972661 A CN201610972661 A CN 201610972661A CN 106540360 B CN106540360 B CN 106540360B
- Authority
- CN
- China
- Prior art keywords
- needle cylinder
- push rod
- rotating
- piston end
- push
- 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.)
- Expired - Fee Related
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Classifications
-
- 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
- A61M5/5066—Means for preventing re-use by disconnection of piston and piston-rod
-
- 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
- A61M2005/5073—Means for preventing re-use by disconnection of piston and piston-rod by breaking or rupturing the connection parts
Abstract
The invention relates to a self-waste disposable syringe, which comprises a syringe, a push rod and a detachable needle head; the front end of the needle cylinder is provided with a transfusion opening, the front end of the needle cylinder is also provided with a rotating disk in parallel and tightly, and the rotating disk shields the transfusion opening in an airtight way; the rotating disc is also provided with an air duct; a push inlet is formed at the rear end of the needle cylinder, and a spiral groove is formed in the inner peripheral wall of the push inlet; a thread section matched with the thread groove is arranged on the push rod; a piston end is arranged in the needle cylinder in a sliding manner and is fixedly connected with the push rod through a connecting column; the side wall of the needle cylinder is provided with a limiting strip which can prevent the piston end from rotating; the needle cylinder is in a vacuum pumping state; this syringe simple structure, low in production cost is honest and clean, and the quick bulk production of being convenient for has automatic condemned function simultaneously, prevents effectively that illegal vendor from retrieving and recycling, provides the powerful guarantee for the clean safety of syringe.
Description
Technical Field
The invention relates to a medical article, in particular to a syringe.
Background
The injector is one of common medical treatment tools, and is a disposable product for preventing cross infection of diseases because the injector directly contacts blood of a human body; but there are many illegal vendors, through the syringe after the recovery use, disinfect, sell again, saved a large amount of processing costs, conscientiously obtain high profit from it, this way provides the channel for disease transmission, has threatened people's life safety greatly.
Disclosure of Invention
In view of the above problems, the present invention provides a self-waste disposable syringe, which has a simple structure, a low production cost, and an automatic scrapping function, is convenient for rapid mass production, and effectively prevents illegal vendors from recycling, thereby providing a strong guarantee for the cleanness and safety of the syringe.
In order to solve the problems, the technical scheme adopted by the invention is as follows: the self-waste disposable syringe comprises a syringe, a push rod and a detachable needle head; the rear end of the needle cylinder is provided with a wing panel which is convenient for force application;
the front end of the needle cylinder is provided with a transfusion opening, the front end of the needle cylinder is also provided with a rotating disk in parallel and tightly, and the rotating disk shields the transfusion opening in an airtight way; the rotating shaft of the rotating disk is coaxial with the needle cylinder, and the rotating disk can freely rotate relative to the needle cylinder;
the rotating disc is also provided with an air duct, and the air duct can be in direct communication with the infusion port once in the process of rotating a circle along with the rotating disc; in a natural state, the infusion port and the air duct are completely staggered, and the infusion port is sealed by the rotating disc;
a push inlet is formed at the rear end of the needle cylinder, and a spiral groove is formed in the inner peripheral wall of the push inlet; a thread section matched with the thread groove is arranged on the push rod;
a piston end is arranged in the needle cylinder in a sliding manner and is fixedly connected with the push rod through a connecting column; the side wall of the needle cylinder is provided with a limiting strip which can prevent the piston end from rotating, and the piston end is provided with a limiting groove matched with the limiting strip;
the needle cylinder is in a vacuum pumping state.
The invention has the beneficial effects that: in a natural state, the infusion port and the air duct are completely staggered, the rotary disc seals the infusion port, meanwhile, the push rod is fixed at the position of the propelling port through thread rotation, the piston end fixedly connected with the push rod is tightly attached to the rear end of the needle cylinder, and the needle cylinder is in a vacuum airtight state; the structure effectively ensures the cleanness and sanitation of the syringe, effectively prevents bacteria from breeding and improves the use safety of the syringe.
When the injector is needed to be used, the needle head is tightly sleeved on the air guide tube, after the liquid medicine is prepared, the needle head is immersed in the liquid medicine, and the rotating disc is rotated, so that the air guide tube is opposite to the infusion port; under the action of negative pressure, the liquid medicine is sucked into the needle cylinder; when a doctor needs to inject liquid medicine, the push rod needs to be rotated firstly, so that the push rod is separated from the screw groove at the pushing port; the piston end is limited by the limiting strip and cannot rotate, so that the connecting column is broken due to torsion in the rotating process of the push rod; after the push rod is separated from the screw groove at the pushing port, a doctor can push the push rod into the needle cylinder, so that the injection of the liquid medicine is realized; the used piston end stays at the front end of the needle cylinder; due to the fact that the connecting column is broken, the push rod can only push and press the piston end, and cannot pull the piston end; therefore, after the syringe is used once, the piston end is pushed to the end of the syringe tube and cannot be pulled back, that is, the liquid medicine cannot be sucked again.
The invention has simple structure, quick manufacture and low processing cost, the push rod and the needle cylinder can be molded at one time for batch production, and the operation can be finished only by assembling and vacuumizing the injector; after each use, the piston end is automatically separated from the push rod for automatic destruction; effectively putting an end to the recycling of illegal vendors; the secondary supply of the injector is cut off from the source; the safety of the patient is ensured.
Preferably, the threaded section is arranged at one end of the push rod close to the piston end; in order to provide a larger suction space.
Preferably, permanent magnetic sheets with different poles attracted to each other are embedded in the front end faces of the rotating disc and the needle cylinder; so as to improve the air tightness of the rotating disk and the needle cylinder.
Drawings
FIG. 1 is a schematic view showing the structure of one embodiment of the self-disposable syringe.
Detailed Description
In the embodiment shown in fig. 1, the self-disabling disposable syringe comprises a barrel 1, a plunger 2 and a detachable needle; the rear end of the needle cylinder 1 is provided with a wing panel which is convenient for force application;
the front end of the needle cylinder 1 is provided with an infusion port 3, the front end of the needle cylinder 1 is also provided with a rotating disc 4 in parallel and tightly, and the rotating disc 4 shields the infusion port 3 in an airtight manner; the rotating shaft 41 of the rotating disk 4 is coaxial with the needle cylinder 1, and the rotating disk 4 can freely rotate relative to the needle cylinder 1; permanent magnetic sheets 5 with different poles attracted are embedded in the front end faces of the rotating disc 4 and the needle cylinder 1; so as to enhance the sealing performance of the rotating disc 4 to the transfusion port 3;
the rotating disc 4 is also provided with an air duct 42, and the air duct 42 can be just communicated with the infusion port 3 once in the process of rotating a circle along with the rotating disc 4; in a natural state, the transfusion port 3 and the air duct 42 are completely staggered, and the transfusion port 3 is sealed by the rotating disc 4;
a push opening 11 is formed at the rear end of the needle cylinder 1, and a spiral groove is formed in the inner peripheral wall of the push opening 11; a thread section 21 matched with the thread groove is arranged on the push rod 2; the threaded section 21 is arranged at one end of the push rod 2 close to the piston end; this positional relationship enables a larger volume to be left in the cylinder 1, thereby sucking more liquid medicine;
a piston end 6 is arranged in the needle cylinder 1 in a sliding manner, and the piston end 6 is fixedly connected with the push rod 2 through a connecting column 61; a limit strip 12 capable of preventing the piston end 6 from rotating is arranged on the side wall of the needle cylinder 1, and a limit groove matched with the limit strip 12 is formed in the piston end 6;
the needle cylinder 1 is in a vacuum state.
In a natural state, the infusion port 3 and the air duct 42 are completely staggered, the rotary disk 4 seals the infusion port 3, meanwhile, the push rod 2 is fixed at the push port 11 through thread rotation, the piston end 6 fixedly connected with the push rod 2 is tightly attached to the rear end of the needle cylinder 1, and the needle cylinder 1 is in a vacuum airtight state; the structure effectively ensures the cleanness and sanitation of the needle cylinder 1, effectively prevents bacteria from breeding and improves the use safety of the needle cylinder 1.
When the injector is needed to be used, the needle head is tightly sleeved on the air guide tube 42, after the liquid medicine is prepared, the needle head is immersed in the liquid medicine, and the rotating disk 4 is rotated, so that the air guide tube 42 is opposite to the infusion port 3; under the action of negative pressure, the liquid medicine is sucked into the needle cylinder 1; when a doctor needs to inject liquid medicine, the push rod 2 needs to be rotated firstly, so that the push rod 2 is separated from the screw groove at the push port 11; because the piston end 6 is limited by the limit strip 12 and can not rotate, the connecting column 61 is broken due to torsion in the process of rotating the push rod 2; after the push rod 2 is separated from the spiral groove at the propelling port 11, a doctor can push the push rod 2 into the needle cylinder 1, so that the injection of the liquid medicine is realized; the piston end 6 after use stays at the front end of the needle cylinder 1; due to the breakage of the connecting column 61, the push rod 2 can only push the piston end 6 and cannot pull the piston end 6; therefore, in the syringe after one use, the piston end 6 is pushed to the end of the cylinder 1 and cannot be pulled back, that is, the medical fluid cannot be sucked again.
The invention has simple structure, quick manufacture and low processing cost, the push rod 2 and the needle cylinder 1 can be molded at one time and produced in batch, and the operation can be finished only by assembling and vacuumizing the injector; after each use, the piston end 6 is automatically separated from the push rod 2 for automatic destruction; effectively putting an end to the recycling of illegal vendors; the secondary supply of the injector is cut off from the source; the safety of the patient is ensured.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (2)
1. A self-waste disposable injector comprises a needle cylinder (1), a push rod (2) and a detachable needle head; the rear end of the needle cylinder (1) is provided with a wing panel convenient for force application; the method is characterized in that: the front end of the needle cylinder (1) is provided with an infusion port (3), the front end of the needle cylinder (1) is also provided with a rotating disk (4) in parallel and tightly, and the rotating disk (4) shields the infusion port (3) in an airtight manner; the rotating shaft (41) of the rotating disk (4) is coaxial with the needle cylinder (1), and the rotating disk (4) can freely rotate relative to the needle cylinder (1); permanent magnetic sheets (5) with opposite poles attracted are embedded in the front end faces of the rotating disc (4) and the needle cylinder (1); the rotating disc (4) is also provided with an air duct (42), and the air duct (42) can be in direct communication with the infusion port (3) once in the process of rotating for a circle along with the rotating disc (4); in a natural state, the transfusion port (3) and the air duct (42) are completely staggered, and the transfusion port (3) is sealed by the rotating disc (4); a push inlet (11) is arranged at the rear end of the needle cylinder (1), and a spiral groove is arranged on the inner peripheral wall of the push inlet (11); a thread section (21) matched with the thread groove is arranged on the push rod (2); a piston end (6) is arranged in the needle cylinder (1) in a sliding manner, and the piston end (6) is fixedly connected with the push rod (2) through a connecting column (61); a limiting strip (12) capable of preventing the piston end (6) from rotating is arranged on the side wall of the needle cylinder (1), and a limiting groove matched with the limiting strip (12) is formed in the piston end (6); the needle cylinder (1) is in a vacuum-pumping state.
2. The self-disabling disposable syringe according to claim 1, wherein: the threaded section (21) is arranged at one end of the push rod (2) close to the piston end (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610972661.XA CN106540360B (en) | 2016-11-07 | 2016-11-07 | Self-waste disposable syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610972661.XA CN106540360B (en) | 2016-11-07 | 2016-11-07 | Self-waste disposable syringe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106540360A CN106540360A (en) | 2017-03-29 |
| CN106540360B true CN106540360B (en) | 2020-03-20 |
Family
ID=58395487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610972661.XA Expired - Fee Related CN106540360B (en) | 2016-11-07 | 2016-11-07 | Self-waste disposable syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106540360B (en) |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4758232A (en) * | 1987-09-08 | 1988-07-19 | Chak Choi K | Suction syringe with an automatic locking means |
| SE464963B (en) * | 1988-12-14 | 1991-07-08 | Gudmar Olovson | SYRINGE |
| US5059179A (en) * | 1989-05-15 | 1991-10-22 | David Quatrochi | Non-reusable syringe assembly |
| US5084017A (en) * | 1989-10-10 | 1992-01-28 | John Maffetone | Self disabling, single use, hypodermic syringe |
| GB2342047A (en) * | 1998-09-25 | 2000-04-05 | Charles Mcnairn | Single use syringe |
| CN2527286Y (en) * | 2001-11-14 | 2002-12-25 | 吴启仁 | Self-destroying disposable syringe |
| CN101035581A (en) * | 2004-09-16 | 2007-09-12 | 因威罗医疗设备有限公司 | Disposable safety syringe to prevent needlestick injuries and reuse |
| US20060264824A1 (en) * | 2005-05-20 | 2006-11-23 | Swisher Kyle Y Iii | Disposable safety medical syringe assembly and method of manufacture |
| KR100683280B1 (en) * | 2006-07-11 | 2007-02-16 | 메디칸(주) | Syringe using in fat transplantation |
| DK2050477T3 (en) * | 2007-10-19 | 2019-04-15 | Hoffmann La Roche | Ampoule unit with adapter |
| CN202314674U (en) * | 2011-11-17 | 2012-07-11 | 赵文元 | Murphy's tube with suspending body and warning mark |
| JP6314150B2 (en) * | 2012-12-13 | 2018-04-18 | スルザー ミックスパック アクチェンゲゼルシャフト | Dispensing device |
| RU2666118C2 (en) * | 2013-03-15 | 2018-09-05 | Мерит Медикал Системз, Инк. | Lockable syringes assemblies and related devices and methods |
| CN204033938U (en) * | 2014-09-03 | 2014-12-24 | 王晓彤 | Syringe |
-
2016
- 2016-11-07 CN CN201610972661.XA patent/CN106540360B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN106540360A (en) | 2017-03-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yu Yongzheng Inventor after: Shao Changqing Inventor after: Xing Xianxian Inventor after: Ma Genchang Inventor before: Ma Genchang |
|
| CB03 | Change of inventor or designer information | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200225 Address after: Qingdao City, Shandong province 266042 four Road No. 127 Applicant after: QINGDAO TUMOUR HOSPITAL Address before: Wujiang Pingwang Town District of Suzhou City, Jiangsu province 215200 Yang Village neighborhood committee Applicant before: Ma Genchang |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200320 Termination date: 20201107 |
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| CF01 | Termination of patent right due to non-payment of annual fee |