Simple needleless injector

A syringe, simple technology, applied in the field of medical devices, can solve the problem of expensive, inseparable, etc.

Active Publication Date: 2018-05-18
四川护理职业学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In order to prevent cross-infection, the International Health Organization emphasizes safe injections. The existing safe syringes are various and varied, but they are all just adding some mechanisms on the basis of ordinary syringes to protect the injection needle after injecti

Method used

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Embodiment Construction

[0009] The present invention will be further described below with reference to the accompanying drawings.

[0010] The invention is a simple syringe without injection needle, suitable for intramuscular injection, applicable to insulin syringes and vaccine syringes, and is a truly safe syringe.

[0011] like figure 1 As shown, the syringe mainly includes two parts, a part is a syringe part (1), and a part is a pressure supply part (2); the syringe part (1) consists of the same jacket (4), core rod (5), The rubber stopper (6) is composed of a specially set injection head (3) and a liquid extraction head (22); the connection between the injection head (3) and the syringe jacket (4) is connected by a double thread (21), which is directly screwed into the joint and pressed tight, the injection head (3) consists of the same needle seat as the common injection needle seat, but without a needle tube, and an Ω-shaped stainless steel part (13), a silicone sealing ring (14), a sheath 1 ...

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PUM

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Abstract

The invention discloses a simple needleless injector and belongs to the field of medical equipment. The simple needleless injector includes an injector part (1) and a pressure providing part (2); theinjector part (1) is composed of a jacket (4), a core rod (5), a rubber plug (6), an injection head (3) and a liquid pumping head (22); the pressure providing part (2) is composed of a shell (23), a pressure shaft (24) and a spring (11). The needleless injector is characterized in that an omega-shaped stainless steel piece (13) of the injection head (3) is provided with one to ten micropores (15)with the diameter of 1-10 mu; the liquid pumping head (22) refers to a plastic injection needle; a spring (11) of the pressure providing part (2) refers to a pressure spring with the pressure more than 1kg; when the needleless injector is in use, the liquid pumping head (22) is used for pumping medicinal liquid, the injection head (3) is replaced, the injector part (1) is connected with the pressure providing part (2), the injection head (3) is aligned to the injector part, the spring (11) is triggered, the medicinal liquid is injected into muscle at high pressure, and injection is completed.The simple needleless injector is applied to intramuscular injection and can be applied to insulin and vaccine injection.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a syringe without an injection needle, and particularly relates to its principle and structure. Background technique [0002] In order to prevent cross-infection, the International Health Organization emphasizes safe injections. The existing safe syringes are varied and diverse, but they are all just adding some mechanisms to protect the injection needles after injections. The injection needles are still inseparable. . The real needle-free syringes do not need injection needles. Now only automatic insulin syringes are available in the market without injection needles, but they are expensive, and common people and patients cannot afford them. Contents of the invention [0003] The object of the present invention is to provide a simple syringe without injection needle, which is reliable in principle, simple in structure, easy to use, applicable to intramuscular injection...

Claims

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Application Information

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IPC IPC(8): A61M5/307A61M5/31
CPCA61M5/30A61M5/3007A61M5/31
Inventor 向俊蓓刘绵学刘泽木
Owner 四川护理职业学院
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