CN113289149A - Medical syringe - Google Patents
Medical syringe Download PDFInfo
- Publication number
- CN113289149A CN113289149A CN202110589721.0A CN202110589721A CN113289149A CN 113289149 A CN113289149 A CN 113289149A CN 202110589721 A CN202110589721 A CN 202110589721A CN 113289149 A CN113289149 A CN 113289149A
- Authority
- CN
- China
- Prior art keywords
- skin test
- main
- needle cylinder
- injector
- cylinder
- 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.)
- Granted
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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
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
-
- 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
- A61M5/19—Syringes having more than one chamber, e.g. including a manifold coupling two parallelly aligned syringes through separate channels to a common discharge assembly
-
- 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
- A61M5/31—Details
-
- 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
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
-
- 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
- A61M5/31—Details
- A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
- A61M5/3295—Multiple needle devices, e.g. a plurality of needles arranged coaxially or in parallel
- A61M5/3298—Needles arranged in parallel
-
- 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
Abstract
The invention relates to the technical field of medical instruments, and discloses a medical injector which solves the technical problem of complicated process caused by the need of using other medical instruments at present, and comprises a main injector and a skin test injector which are integrally installed; the main injector comprises a main needle cylinder, a main needle head, a main push rod and a protective sleeve; the skin test injector comprises a skin test needle cylinder, a skin test needle head, a skin test push rod and a protective sleeve; through plane body coupling between main cylinder and the skin examination cylinder, both connection parts are the connection wall, are provided with check valve on the connection wall, and the liquid medicine in the main cylinder passes through check valve flow direction skin examination cylinder, and check valve's the position that sets up is below the scale of the normal injection medicine of main cylinder, avoids normal injection medicine to pass through check valve flow direction skin examination cylinder. According to the technical scheme, the main injector and the skin test injector are integrally installed, and the skin test injector is used for skin test so as to achieve the purpose of quickly performing skin test operation.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a medical injector.
Background
Syringes are a common medical device, and the principle of syringes was proposed by kathler, italian as early as the 15 th century. It is mainly used for injecting liquid medicine or extracting liquid. Syringes may also be used for injection through rubber septa in medical devices, containers, scientific instruments such as in some chromatography. Injecting gas into a blood vessel will cause air embolism. The method of removing air from the syringe to avoid embolism is to invert the syringe, tap it gently, and then squeeze out a little liquid before injecting into the bloodstream.
However, when the injector injects some drugs like penicillin, a skin test needs to be performed on a patient to test whether the patient is allergic to the drugs to be injected, and the current practice is to take an additional tool to perform the skin test before injection, and inject the drugs with the injector after the skin test is completed.
Disclosure of Invention
Aiming at the technical problem that the process is complicated due to the fact that other medical instruments need to be used in the background technology, the skin test injector and the main injector are integrally installed, and the skin test injector is used for skin test, so that the purpose of quickly performing skin test operation is achieved.
In order to achieve the purpose, the invention provides the following technical scheme:
a medical injector comprises a main injector and a skin test injector, wherein the main injector and the skin test injector are integrally installed;
the main injector comprises a main needle cylinder, a main needle head, a main push rod and a protective sleeve; the skin test injector comprises a skin test needle cylinder, a skin test needle head, a skin test push rod and a protective sleeve;
the main needle cylinder and the skin test needle cylinder are connected through a plane body, the connection part of the main needle cylinder and the skin test needle cylinder is a connection wall, a one-way valve is arranged on the connection wall, liquid medicine in the main needle cylinder passes through the one-way valve to flow towards the skin test needle cylinder, the setting position of the one-way valve is below the scale of the main needle cylinder for normally injecting medicine, and the normally injected medicine is prevented from flowing towards the skin test needle cylinder through the one-way valve.
Through the technical scheme, the skin test injector and the main injector are integrally installed, and the skin test injector is used for skin test so as to achieve the purpose of quickly performing skin test operation
Specifically, when the skin test device is used, two modes are generally adopted for skin test, 1, the liquid medicine in the main injector is directly used for skin test (in rare cases), at the moment, the liquid medicine in the main injector enters the skin test injector through the one-way valve, and a skin test needle of the skin test injector is used for skin test operation;
2. directly using a skin test needle to suck the externally diluted liquid medicine for skin test, and using a main injector to carry out injection operation after the skin test is finished.
The invention is further configured to: the skin test needle head is provided with a bending section, and the bending section is bent towards one side far away from the main needle head, so that skin test operation is facilitated.
Through above-mentioned technical scheme, the bending section is used for being convenient for make skin test, prevents that skin test syringe needle and main syringe needle are adjacent too close, influences skin test operation.
The invention is further configured to: the main needle cylinder and the skin test needle cylinder are both of structures with arc surfaces and planes, and the plane parts of the main needle cylinder and the skin test needle cylinder are integrally combined and formed.
The invention is further configured to: the utility model discloses a large diameter section, including main push rod, main needle cylinder, draw-in groove, rubber plug front end and guide part, the guide part is convenient for the rubber plug is compressed and is passed the little diameter section reachs the big diameter section, the rubber plug reachs can't be extracted after the big diameter section is inside.
Through the technical scheme, after injection is finished, the push rod cannot be pulled out, so that the self-destruction effect is achieved, and medical recycling is prevented from causing disease infection.
The invention is further configured to: the limiting block and the inner wall of the main needle cylinder are tightly fixed.
In conclusion, the invention has the following beneficial effects:
(1) the efficiency of skin test is improved;
(2) redundant skin test medical instruments are saved;
(3) can prevent the injector from being used for many times and prevent the infection of patients or medical care personnel.
Drawings
FIG. 1 is a schematic view of the overall structure of the syringe;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;
FIG. 3 is a schematic view of the overall structure of the main injector;
fig. 4 is an enlarged schematic view of B in fig. 3.
Reference numerals: 1. a main injector; 1-1, a main needle cylinder; 1-11 and a limiting block; 1-12, a card slot; 1-121, small diameter section; 1-122, large diameter section; 1-2, a main needle; 1-3, a main push rod; 1-31, a rod part; 1-32, rubber plug; 1-33, a guide part 1-4 and a protective sleeve; 2. a skin test syringe; 2-1, a skin test needle cylinder; 2-2, skin test needle; 2-21, bending section; 2-3, pushing a skin test rod; 2-4, protecting the sleeve; 3. a connecting wall; 4. a one-way valve.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited to these examples.
A medical injector, which is combined with figures 1-4, comprises a main injector 1 and a skin test injector 2, wherein the main injector 1 and the skin test injector 2 are integrally installed. The main injector 1 comprises a main needle cylinder 1-1, a main needle head 1-2, a main push rod 1-3 and a protective sleeve 1-4; the skin test injector 2 comprises a skin test syringe 2-1, a skin test needle 2-2, a skin test push rod 2-3 and a protective sleeve 2-4.
The main needle cylinder 1-1 and the skin test needle cylinder 2-1 are integrally connected through a plane, the connecting part of the main needle cylinder 1-1 and the skin test needle cylinder 2-1 is a connecting wall 3, a one-way valve 4 is arranged on the connecting wall 3, liquid medicine in the main needle cylinder 1-1 flows to the skin test needle cylinder 2-1 through the one-way valve 4, and the setting position of the one-way valve 4 is below the scale of normal medicine injection of the main needle cylinder 1-1, so that the normal medicine injection is prevented from flowing to the skin test needle cylinder 2-1 through the one-way valve 4.
The skin test needle head 2-2 is provided with a bending section 2-21, and the bending section 2-21 is bent towards one side far away from the main needle head 1-2, so that skin test operation is facilitated. The main needle cylinder 1-1 and the skin test needle cylinder 2-1 are both provided with structures with arc surfaces and planes, and the plane parts of the main needle cylinder 1-1 and the skin test needle cylinder are integrally combined and molded.
The main push rod 1-3 comprises a rod part 1-31 and a rubber plug 1-32, the bottom of the main needle cylinder 1-1 is provided with a limiting block 1-11, the limiting block 1-11 is provided with a clamping groove 1-12, the clamping groove 1-12 comprises a small diameter section 1-121 and a large diameter section 1-122, the front end of the rubber plug 1-32 is provided with a guide part 1-33, the guide part 1-33 is convenient for the rubber plug 1-32 to be compressed to penetrate through the small diameter section 1-121 to reach the large diameter section 1-122, and the rubber plug 1-32 cannot be pulled out after reaching the inside of the large diameter section 1-122. The limiting block 1-11 is tightly fixed with the inner wall of the main needle cylinder 1-1.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (5)
1. A medical injector comprises a main injector (1) and a skin test injector (2), wherein the main injector (1) and the skin test injector (2) are integrally installed, and the medical injector is characterized in that:
the main injector (1) comprises a main needle cylinder (1-1), a main needle head (1-2), a main push rod (1-3) and a protective sleeve (1-4); the skin test injector (2) comprises a skin test needle cylinder (2-1), a skin test needle head (2-2), a skin test push rod (2-3) and a protective sleeve (2-4);
the main needle cylinder (1-1) and the skin test needle cylinder (2-1) are integrally connected through a plane, the connecting part of the main needle cylinder and the skin test needle cylinder is a connecting wall (3), a one-way valve (4) is arranged on the connecting wall (3), liquid medicine in the main needle cylinder (1-1) flows to the skin test needle cylinder (2-1) through the one-way valve (4), the setting position of the one-way valve (4) is below the scale of the main needle cylinder (1-1) for normally injecting medicine, and the normally injected medicine is prevented from flowing to the skin test needle cylinder (2-1) through the one-way valve (4).
2. A medical injector according to claim 1, characterized in that: the skin test needle head (2-2) is provided with a bending section (2-21), and the bending section (2-21) is bent towards one side far away from the main needle head (1-2), so that skin test operation is facilitated.
3. A medical injector according to claim 1, characterized in that: the main needle cylinder (1-1) and the skin test needle cylinder (2-1) are both of structures with arc surfaces and planes, and the plane parts of the main needle cylinder and the skin test needle cylinder are integrally combined and formed.
4. A medical injector according to claim 1, characterized in that: the main push rod (1-3) comprises a rod part (1-31) and a rubber plug (1-32), the bottom of the main needle cylinder (1-1) is provided with a limiting block (1-11), a clamping groove (1-12) is formed in the limiting block (1-11), the clamping groove (1-12) comprises a small diameter section (1-121) and a large diameter section (1-122), the front end of the rubber plug (1-32) is provided with a guide part (1-33), the guide part (1-33) is convenient for the rubber plug (1-32) to be compressed and penetrate through the small diameter section (1-121) to reach the large diameter section (1-122), and the rubber plug (1-32) can not be pulled out after reaching the inside of the large diameter section (1-122).
5. A medical injector according to claim 1, characterized in that: the limiting blocks (1-11) are tightly fixed with the inner wall of the main needle cylinder (1-1).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202110589721.0A CN113289149B (en) | 2021-05-28 | 2021-05-28 | Medical syringe |
Applications Claiming Priority (1)
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CN202110589721.0A CN113289149B (en) | 2021-05-28 | 2021-05-28 | Medical syringe |
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CN113289149A true CN113289149A (en) | 2021-08-24 |
CN113289149B CN113289149B (en) | 2022-08-19 |
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CN202110589721.0A Active CN113289149B (en) | 2021-05-28 | 2021-05-28 | Medical syringe |
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CN209679193U (en) * | 2019-01-15 | 2019-11-26 | 曲红英 | A kind of skin test injection device |
CN210409149U (en) * | 2019-02-15 | 2020-04-28 | 华中科技大学同济医学院附属协和医院 | Automatic skin test injection instrument |
CN210428795U (en) * | 2019-11-04 | 2020-04-28 | 孙文 | Wrist type skin test result alarm |
CN210521499U (en) * | 2019-06-14 | 2020-05-15 | 胡艳敏 | Disposable special sensitive test syringe |
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CN2260617Y (en) * | 1996-07-23 | 1997-08-27 | 谢旭明 | Syringe special for Jinpu preparation |
CN2306792Y (en) * | 1997-07-23 | 1999-02-10 | 杨士梅 | Disposable intracutaneous syringe |
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CN2699916Y (en) * | 2004-04-15 | 2005-05-18 | 胡晓兰 | Novel aseptic injector |
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CN201987981U (en) * | 2011-03-02 | 2011-09-28 | 王美莲 | Syringe |
CN202143739U (en) * | 2011-06-26 | 2012-02-15 | 管香芹 | Skin test disinfector |
CN202336111U (en) * | 2011-12-10 | 2012-07-18 | 闫桂华 | Injection-depth-controllable injector for nursing |
CN202844268U (en) * | 2012-08-31 | 2013-04-03 | 丛晶枫 | Nursing injector |
CN202802510U (en) * | 2012-09-27 | 2013-03-20 | 王增叶 | Skin test sterilization device |
CN202961380U (en) * | 2012-12-08 | 2013-06-05 | 李光忠 | Skin test protection device of tuberculosis patients |
CN203815983U (en) * | 2014-04-17 | 2014-09-10 | 田美琴 | Support frame for skin test needle |
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CN209237056U (en) * | 2018-08-27 | 2019-08-13 | 鹰潭荣嘉集团医疗器械实业有限公司 | A kind of digital one time subtractive angiography asepsis injector |
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CN209679193U (en) * | 2019-01-15 | 2019-11-26 | 曲红英 | A kind of skin test injection device |
CN210409149U (en) * | 2019-02-15 | 2020-04-28 | 华中科技大学同济医学院附属协和医院 | Automatic skin test injection instrument |
CN210521499U (en) * | 2019-06-14 | 2020-05-15 | 胡艳敏 | Disposable special sensitive test syringe |
CN110478576A (en) * | 2019-09-20 | 2019-11-22 | 灏曦(天津)生物技术有限公司 | A kind of intracutaneous injection needle assemblies of fixed puncture angle and depth |
CN210428795U (en) * | 2019-11-04 | 2020-04-28 | 孙文 | Wrist type skin test result alarm |
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