High-pressure-injector needle-cylinder rotating fixing device and method with plunger limiting function
A high-pressure syringe and fixing device technology, which can be applied to syringes, hypodermic injection devices, and injectors by jet action, etc., can solve problems such as secondary pollution of syringes.
Active Publication Date: 2017-09-08
NANJING JUSHA DISPLAY TECH +1
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Problems solved by technology
[0008]
Moreover, most of the high-pressure injector products on the market with an injection pressure greater than 1000PSI are mostly fixed by placing the syringe in the protective sleeve of the syringe, and the syringe is inserted from the rear of the protective sleeve. On the syringe seat of the high-pressure syringe, this structure directly leads to the fact that when the nurse replaces the syringe, he must first take out the syringe from the back of the syringe protective cover, and then replace the syringe. As a result, the secondary pollution of the syringe by the external environment
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[0039] The technical solutions of the present invention will be clearly and completely described below through specific implementations. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0040] Such as Figure 1-11 As shown, the present invention provides a specific embodiment of a high-pressure syringe barrel rotation fixing device with plunger limit, which includes a high-pressure syringe barrel 4 sleeved outside and abutting contact with the rear end of the high-pressure syringe barrel 4 Syringe protective sleeve 1, a syringe holder fixedly fitted with one end of the syringe protective sleeve 1 and in abutting contact with the syringe protective sleeve 1, a first cover fixedly fitted with th...
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The invention discloses a high-pressure-injector needle-cylinder rotating fixing device and method with the plunger limiting function. The high-pressure-injector needle-cylinder rotating fixing device comprises a needle-cylinder protecting sleeve arranged on the outer side of a needle cylinder of a high pressure injector in a sleeving mode and a needle cylinder base fixedly matched with one end of the needle-cylinder protecting sleeve. The needle cylinder base is provided with a plurality of elastic plunger pieces located in the radial direction of the needle-cylinder protecting sleeve, and the needle-cylinder protecting sleeve is provided with an annular groove matched with the elastic plunger pieces. According to the high-pressure-injector needle-cylinder rotating fixing device and method, operation is easy and convenient, needle cylinder replacement is not prone to wrong operation, and the needle cylinder can be taken out of or placed into the needle-cylinder protecting sleeve without pulling off a needle tube.
Description
Technical field [0001] The invention relates to a rotary fixing device and method for a high-pressure syringe barrel with plunger limit. Background technique [0002] A high-pressure syringe is one of the devices often used in medical equipment, used to inject liquids such as contrast media and saline into the human body to enhance the effects of medical imaging such as X-ray or electromagnetic imaging. It is operated by a nurse to inject the contrast medium into the patient. The general process includes installing and fixing the syringe, setting injection parameters, injecting, and removing the syringe. Existing high-pressure syringes on the market have the following steps to replace the syringe: [0003] Step1: Remove the protective sleeve of the syringe and the syringe as a whole [0004] Step2: Separate the needle tube from the syringe [0005] Step3: Replace with a new syringe and reinsert the new syringe into the syringe protective sleeve [0006] Step4: Connect the needle tub...
Claims
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Login to View More IPC IPC(8): A61M5/30A61M5/31
CPCA61M5/007A61M5/30A61M5/3129A61M5/31511
Inventor 张小元李燕
Owner NANJING JUSHA DISPLAY TECH