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Disposable sterile precise automatic liquid suction dosing injection device

An injection device, a disposable technology, applied in the field of syringes, can solve the problems of slow control, increase the user's working pressure, pump more liquid medicine, etc., and achieve the effect of uniform gravity distribution

Pending Publication Date: 2022-07-12
XUANWU HOSPITAL OF CAPITAL UNIV OF MEDICAL SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The above-mentioned document proposes the method of using an external device to control the liquid suction volume, especially the method of externally connecting a quantitative bar that moves in the same direction as the piston to reflect the suction volume. However, the control method for

Method used

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  • Disposable sterile precise automatic liquid suction dosing injection device
  • Disposable sterile precise automatic liquid suction dosing injection device
  • Disposable sterile precise automatic liquid suction dosing injection device

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Embodiment Construction

[0032] The present invention will be described in detail below with reference to the accompanying drawings.

[0033] In order to make the above objects, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, but not all, embodiments of the present invention. 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.

[0034] In the description of the present invention, it should be understood that when the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front" appear , "back", "left", "right", "vertical"...

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Abstract

The invention relates to a disposable sterile precise automatic liquid suction administration injection device, which comprises a pressing plate, a liquid suction pump, a liquid suction pump, a liquid suction pump, a liquid suction pump, a liquid suction pump and a liquid suction pump, and is characterized in that the pressing plate is used for providing a negative-pressure environment for a medicine injection device based on self-displacement; the air bag is used for providing driving force needed by displacement of the pressing plate; and the second quantifying assembly is used for controlling the displacement amount of the pressing plate. In the process that the air bag pushes the pressing plate to suck the liquid, the second quantitative assembly can control the displacement amount of the pressing plate based on pre-pressing, so that the dosing injection device can quantitatively suck the liquid medicine with the volume multiple of the preset minimum unit. According to the dosing injection device, automatic suction of the dosing injection device is achieved by adopting an inflation mode instead of a manual mode, and quantitative suction of liquid medicine is achieved by arranging the quantitative assembly.

Description

technical field [0001] The invention relates to the field of syringes, in particular to a disposable aseptic precise automatic suction liquid administration injection device. Background technique [0002] Syringe is a common medical appliance. The syringe consists of a syringe with a small hole at the front end and a matching piston core rod. Syringes are used to inject fluids into or withdraw fluids from areas that are otherwise inaccessible. When the mandrel is pulled out, the liquid or gas is sucked from the small hole at the front end of the syringe, and when the mandrel is pushed in, the liquid or gas is squeezed out from the small hole at the front of the syringe. In medicine, the process of using a syringe and needle to withdraw fluid and inject it into a patient is called injection. [0003] At the same time, the syringe also has a suction function, and the most commonly used medical treatment is to use a syringe to draw blood for the diagnosis of diseases. In the...

Claims

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Application Information

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IPC IPC(8): A61J1/22A61J1/20A61M5/20A61M5/31A61M5/315
CPCA61J1/22A61J1/201A61J1/2051A61J1/2068A61M5/20A61M5/31A61M5/31578A61M2005/3114
Inventor 王悦
Owner XUANWU HOSPITAL OF CAPITAL UNIV OF MEDICAL SCI
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