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Disposable syringes and plungers for disposable syringes

A syringe, disposable technology, applied in the direction of syringes, hypodermic injection devices, infusion sets, etc., can solve the problems of increasing patient pain, laborious use of syringes, deformation of rubber stoppers, etc., and achieve the effect of alleviating pain

Active Publication Date: 2019-09-13
SHANGHAI SOL MILLENNIUM MEDICAL PRODUCTS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in this disposable syringe of the prior art, in order to obtain the stroke required for the distal end of the push rod to continue to advance and engage with the needle seat at the end of the injection, it is necessary to apply a relatively large force to the push rod to make the rubber stopper produce sufficient pressure. deformation of
This makes the syringe laborious to use and increases patient suffering

Method used

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  • Disposable syringes and plungers for disposable syringes
  • Disposable syringes and plungers for disposable syringes
  • Disposable syringes and plungers for disposable syringes

Examples

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Embodiment Construction

[0013] The disposable syringe and the push rod for the disposable syringe of the present invention will be described below with reference to the specific embodiments shown in the accompanying drawings. It should be understood by those skilled in the art that the figures shown in the drawings are only exemplary, and their purpose is to explain the present invention, not to limit the present invention.

[0014] The directional terms "far" and "near" used in the detailed description below are relative to medical staff such as nurses who inject patients, and correspond to Figure 1~3 "Up" and "Down" in the drawings.

[0015] figure 1 with figure 2 Two states of a disposable syringe according to an embodiment of the present invention during injection and at the end of injection are respectively shown. As shown in the figure, the disposable syringe of the present invention includes a casing 1 , a needle base 2 , a push rod 3 and a rubber stopper 4 . The sheath 1 comprises a pro...

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PUM

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Abstract

The invention provides a disposable syringe and a push rod for the disposable syringe. The push rod includes a proximal end, a distal end and an axis extending through the proximal end and the distal end, and the distal end of the push rod is formed with a locking mechanism and a block located near the locking structure. Wherein, the stopper includes a main body formed around the axis of the push rod and a plurality of finger parts extending from the main body in a direction away from the axis of the push rod. According to the present invention, at the end of the injection, continue to apply a small push force to the push rod to obtain the stroke required for the distal end of the push rod to engage with the needle seat, and at the same time reduce the pain of the patient.

Description

technical field [0001] The invention relates to a disposable syringe and a push rod for the disposable syringe. Background technique [0002] In order to avoid problems such as cross-infection caused by repeated use of syringes, disposable syringes are widely used in medical practice. A typical disposable syringe includes a casing, a push rod capable of reciprocating movement in the casing, and a rubber stopper in contact with the inner wall of the casing. The distal end of the push rod and the needle base mounted on the distal end of the outer casing form a locking mechanism capable of engaging with each other. A blocking platform near the engaging mechanism is also formed on the push rod, and the rubber plug is installed between the engaging mechanism of the pushing rod and the blocking platform. The block is a frustum-shaped structure, which is approximately rigid compared with the rubber stopper. During the injection process, the stopper pushes the rubber stopper, so ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M5/50A61M5/315A61M5/178
CPCA61M5/31511A61M5/31513A61M5/422A61M5/502A61M5/504A61M2005/31516A61M5/315A61M5/31501A61M5/31515A61M5/50A61M2005/3143A61M2005/31508
Inventor 林作钱
Owner SHANGHAI SOL MILLENNIUM MEDICAL PRODUCTS CO LTD