Positive-and-negative-pressure needle-free rubber valve adapter

A positive and negative pressure, rubber valve technology, applied in the field of medical supplies, can solve the problems of difficult and unstable injection port insertion, achieve the effect of convenient drug flow, reduce resistance, and prevent the invasion of bacteria

Pending Publication Date: 2021-10-29
刘云虎
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a needle-free connector whose rubber valv

Method used

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  • Positive-and-negative-pressure needle-free rubber valve adapter

Examples

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Example Embodiment

[0024] like figure 1 The shown embodiment is the positive and negative pressure needle-free glue valve joint described in the invention, which includes a glue valve 1 , an upper shell 2 and a lower shell 3 .

[0025] The rubber valve 1 includes an upper half, a lower half and an oblique shoulder 17, the radius of the upper half is smaller than that of the lower half, the upper half and the lower half are coaxial, fixedly connected by the oblique shoulder 17, and the top of the upper half is provided with Top cover 11, the lower edge of top cover 11 is arc surface. The inner wall of the lower half of the glue valve 1 is a bell mouth with the big mouth facing downward, and the upper half and the lower half are provided with cavities 12 . A thickened layer 13 is arranged in the cavity 12 along the longitudinal direction of the glue valve 1 . The thickened layer 13 starts from the lower surface of the top cover 11 and ends in the middle of the lower half. The lower half of the g...

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Abstract

The invention relates to the field of medical supplies and discloses a positive-and-negative-pressure needle-free rubber valve adapter. The adapter comprises a rubber valve, an upper shell and a lower shell, wherein a top cover is arranged at the top of the rubber valve, a cavity is formed in the rubber valve, an opening is formed in the top of the upper shell, a liquid outlet is formed in the bottom of the lower shell and communicates with the cavity, the opening in the upper shell of the rubber valve is tightly attached to the top cover, the upper shell is fixedly connected with the lower shell, the bottom edge of the rubber valve is attached to the inner wall of the lower shell, an annular liquid retention cavity is formed between the rubber valve and the upper shell, a thickening layer is arranged in the cavity along the longitudinal direction of the rubber valve, and the thickening layer starts from the lower end face of the top cover. The rubber valve in the adapter can incline towards a fixed direction, so that the problem that the injection port is difficult to insert and is unstable is solved.

Description

technical field [0001] The invention relates to the field of medical supplies, in particular to a positive and negative pressure needle-free glue valve joint. Background technique [0002] In recent years, with the innovation and development of technology, a variety of needle-free infusion connector vaccinations focusing on safety injections have come out. Needle-free infusion connectors have also gone through earlier blunt needle designs, complex mechanical valves, and today's simple and transparent positive-pressure needle-free connectors. In the existing design, the inclination direction of the internal rubber valve of this needleless joint is not fixed, and it often takes a long time for the user to insert the injection port into the needle. At the same time, the inclination direction of the rubber valve is not fixed, which will lead to unstable insertion of the injection port , there are problems such as leakage. Contents of the invention [0003] The technical prob...

Claims

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Application Information

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IPC IPC(8): A61J1/14A61M39/22
CPCA61J1/1412A61J1/1475A61M39/22
Inventor 刘云虎
Owner 刘云虎
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