Injector capable of continuously measuring volume and application method thereof
A syringe and volume technology, applied in the field of medical devices, can solve problems affecting accuracy, etc., and achieve the effects of simple operation, low design and manufacturing costs, and a wide range of applications
Inactive Publication Date: 2010-07-07
THE FIRST AFFILIATED HOSPITAL OF SUN YAT SEN UNIV
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- Abstract
- Description
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Problems solved by technology
Since the operator needs to accumulate and calculate the total amount of liquid for many times, it often brings a lot of errors due to memory errors or environmental interference, which affects its accuracy.
Method used
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Experimental program
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Embodiment 1
[0021] The application of the syringe capable of continuously metering the volume in peritoneal cavity aspiration is given as an example. Instruct the patient to urinate, take the supine position, take the intersection of the outer 1 / 3 and middle 1 / 3 of the line between the left umbilical cord and the anterior superior iliac spine as the puncture point, and routinely disinfect the skin. The operator wears sterile gloves and lays a drapery. Use 1-2% procaine to anesthetize the peritoneal wall layer by layer, take the syringe with a maximum usable volume of 50ml, and start pumping when the needle tip feels empty and there is ascites. Draw 50ml of liquid every time, and rotate the dial of the syringe that can continuously measure the volume once every time. Fix it with adhesive tape, and multiply the data on the dial by 50ml to get the total amount of liquid pumped.
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The invention belongs to the technical field of medical appliances, and relates to an injector capable of continuously measuring volume and an application method thereof. Because of the limitation of the maximum available volume of an injector, an operator needs count the liquid volume by a plurality of times of accumulation for patients who need draw a great amount of succus for a test or patients who need a large amount of transfusion with an injector, and the operator usually miscalculates the amount due to memory lapse or environment interference. The injector capable of continuously measuring volume is designed for overcoming the defects existing in the existing medical injectors. A unidirectionally and circularly rotating dial is designed at the rear housing end and the front edge of the turned housing edge of the injector, and the dial rotates once when liquid is drawn or injected once, so the liquid volume can be accurately counted after multiple times of drawing or injection.
Description
technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a syringe capable of continuously metering volume and a use method thereof. Background technique [0002] As early as the 15th century, the Italian Catinelle proposed the principle of the syringe, but it was not until 1657 that the British Boyle and Wren conducted the first human experiment. It is generally believed that Pravoz of France is the inventor of the syringe. The syringe he supervised in 1853 was made of silver, with a capacity of only 1 ml and a threaded piston rod. [0003] The truly modern medical syringe began with the glass syringe invented by the British Ferguson. The glass is transparent and the specific situation of the injected drug can be seen. After that, there are syringes made of glass tubes and metals, which can be sterilized by boiling and the needles can also be ground. Tips are reused and sterilized. Most of the medical syringes us...
Claims
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Inventor 向贤宏杨建勇
Owner THE FIRST AFFILIATED HOSPITAL OF SUN YAT SEN UNIV