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Injection syringe assembly

A technology of syringes and components, applied in the field of medical devices, can solve the problem that the forward or backward distance of the push rod cannot be precisely controlled, etc.

Inactive Publication Date: 2018-11-06
任雪梅
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, when a syringe is used to extract or inject liquid, the operator often observes the injection volume or the extraction volume with the eyes, and when the hand is operating the push rod, the advance or retreat distance of the push rod cannot be accurate. control

Method used

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  • Injection syringe assembly
  • Injection syringe assembly

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Embodiment Construction

[0017] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0018] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating ...

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Abstract

The invention provides an injection syringe assembly which is characterized by comprising a dose input button, a control chip, an injection pipe assembly, a motor assembly, an external threaded sleeveand an internal threaded sleeve; the injection pipe assembly comprises a casing, a piston arranged in the casing and a push rod connected with the piston; the tail end of the casing is detachably connected with a first end of the internal threaded sleeve; the motor assembly is arranged at the tail end of the casing and connected with an end of the push rod; the external threaded sleeve is connected with a rotating shaft of the motor assembly; the external threaded sleeve is in screwed connection with the internal threaded sleeve, so that the external threaded sleeve can be spirally advanced or retracted in an axial direction of the internal threaded sleeve, and further drive the push rod to advance or retreat axially; the dose input button is arranged at one end, away from the injection pipe assembly, of the internal threaded sleeve and is communicatively connected with the control chip; the control chip is used for controlling the motor assembly to electrically rotate for a corresponding angle according to a dose input by the dose input button.

Description

technical field [0001] The invention relates to the field of medical instruments, in particular to a syringe assembly. Background technique [0002] In the prior art, when a syringe is used to extract or inject liquid, the operator often observes the injection volume or the extraction volume with the eyes, and when the hand is operating the push rod, the advance or retreat distance of the push rod cannot be accurate. control. [0003] Therefore, there are defects in the prior art, and improvement is badly needed. Contents of the invention [0004] An embodiment of the present invention provides a syringe assembly, which has the beneficial effect of quantitatively drawing or injecting liquid. [0005] The invention provides a syringe assembly, which includes a dose input button, a control chip, an injection tube assembly, a motor assembly, an external thread sleeve and an internal thread sleeve; [0006] The injection tube assembly includes a housing, a piston disposed i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/20A61M5/31A61M5/315
CPCA61M5/20A61M5/31A61M5/31511A61M5/31528A61M5/31546A61M5/31576A61M2005/2006A61M2005/2026A61M2005/31588
Inventor 任雪梅
Owner 任雪梅
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